drivers/scsi/lpfc/lpfc_init.c

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2017-2021 Broadcom. All Rights Reserved. The term *
   5  * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.  *
   6  * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
   7  * EMULEX and SLI are trademarks of Emulex.                        *
   8  * www.broadcom.com                                                *
   9  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
  10  *                                                                 *
  11  * This program is free software; you can redistribute it and/or   *
  12  * modify it under the terms of version 2 of the GNU General       *
  13  * Public License as published by the Free Software Foundation.    *
  14  * This program is distributed in the hope that it will be useful. *
  15  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  16  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  17  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  18  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  19  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  20  * more details, a copy of which can be found in the file COPYING  *
  21  * included with this package.                                     *
  22  *******************************************************************/
  23
  24 #include <linux/blkdev.h>
  25 #include <linux/delay.h>
  26 #include <linux/dma-mapping.h>
  27 #include <linux/idr.h>
  28 #include <linux/interrupt.h>
  29 #include <linux/module.h>
  30 #include <linux/kthread.h>
  31 #include <linux/pci.h>
  32 #include <linux/spinlock.h>
  33 #include <linux/ctype.h>
  34 #include <linux/aer.h>
  35 #include <linux/slab.h>
  36 #include <linux/firmware.h>
  37 #include <linux/miscdevice.h>
  38 #include <linux/percpu.h>
  39 #include <linux/msi.h>
  40 #include <linux/irq.h>
  41 #include <linux/bitops.h>
  42 #include <linux/crash_dump.h>
  43 #include <linux/cpu.h>
  44 #include <linux/cpuhotplug.h>
  45
  46 #include <scsi/scsi.h>
  47 #include <scsi/scsi_device.h>
  48 #include <scsi/scsi_host.h>
  49 #include <scsi/scsi_transport_fc.h>
  50 #include <scsi/scsi_tcq.h>
  51 #include <scsi/fc/fc_fs.h>
  52
  53 #include "lpfc_hw4.h"
  54 #include "lpfc_hw.h"
  55 #include "lpfc_sli.h"
  56 #include "lpfc_sli4.h"
  57 #include "lpfc_nl.h"
  58 #include "lpfc_disc.h"
  59 #include "lpfc.h"
  60 #include "lpfc_scsi.h"
  61 #include "lpfc_nvme.h"
  62 #include "lpfc_logmsg.h"
  63 #include "lpfc_crtn.h"
  64 #include "lpfc_vport.h"
  65 #include "lpfc_version.h"
  66 #include "lpfc_ids.h"
  67
  68 static enum cpuhp_state lpfc_cpuhp_state;
  69 /* Used when mapping IRQ vectors in a driver centric manner */
  70 static uint32_t lpfc_present_cpu;
  71
  72 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba);
  73 static void lpfc_cpuhp_remove(struct lpfc_hba *phba);
  74 static void lpfc_cpuhp_add(struct lpfc_hba *phba);
  75 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  76 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  77 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  78 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  79 static int lpfc_setup_endian_order(struct lpfc_hba *);
  80 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  81 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  82 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  83 static void lpfc_init_sgl_list(struct lpfc_hba *);
  84 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  85 static void lpfc_free_active_sgl(struct lpfc_hba *);
  86 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  87 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  88 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  89 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  90 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  91 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  92 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  93 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  94 static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
  95 static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *);
  96 static int lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *);
  97
  98 static struct scsi_transport_template *lpfc_transport_template = NULL;
  99 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
 100 static DEFINE_IDR(lpfc_hba_index);
 101 #define LPFC_NVMET_BUF_POST 254
 102 static int lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport);
 103
 104 /**
 105  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 106  * @phba: pointer to lpfc hba data structure.
 107  *
 108  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 109  * mailbox command. It retrieves the revision information from the HBA and
 110  * collects the Vital Product Data (VPD) about the HBA for preparing the
 111  * configuration of the HBA.
 112  *
 113  * Return codes:
 114  *   0 - success.
 115  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 116  *   Any other value - indicates an error.
 117  **/
 118 int
 119 lpfc_config_port_prep(struct lpfc_hba *phba)
 120 {
 121         lpfc_vpd_t *vp = &phba->vpd;
 122         int i = 0, rc;
 123         LPFC_MBOXQ_t *pmb;
 124         MAILBOX_t *mb;
 125         char *lpfc_vpd_data = NULL;
 126         uint16_t offset = 0;
 127         static char licensed[56] =
 128                     "key unlock for use with gnu public licensed code only\0";
 129         static int init_key = 1;
 130
 131         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 132         if (!pmb) {
 133                 phba->link_state = LPFC_HBA_ERROR;
 134                 return -ENOMEM;
 135         }
 136
 137         mb = &pmb->u.mb;
 138         phba->link_state = LPFC_INIT_MBX_CMDS;
 139
 140         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 141                 if (init_key) {
 142                         uint32_t *ptext = (uint32_t *) licensed;
 143
 144                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 145                                 *ptext = cpu_to_be32(*ptext);
 146                         init_key = 0;
 147                 }
 148
 149                 lpfc_read_nv(phba, pmb);
 150                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 151                         sizeof (mb->un.varRDnvp.rsvd3));
 152                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 153                          sizeof (licensed));
 154
 155                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 156
 157                 if (rc != MBX_SUCCESS) {
 158                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 159                                         "0324 Config Port initialization "
 160                                         "error, mbxCmd x%x READ_NVPARM, "
 161                                         "mbxStatus x%x\n",
 162                                         mb->mbxCommand, mb->mbxStatus);
 163                         mempool_free(pmb, phba->mbox_mem_pool);
 164                         return -ERESTART;
 165                 }
 166                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 167                        sizeof(phba->wwnn));
 168                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 169                        sizeof(phba->wwpn));
 170         }
 171
 172         /*
 173          * Clear all option bits except LPFC_SLI3_BG_ENABLED,
 174          * which was already set in lpfc_get_cfgparam()
 175          */
 176         phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
 177
 178         /* Setup and issue mailbox READ REV command */
 179         lpfc_read_rev(phba, pmb);
 180         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 181         if (rc != MBX_SUCCESS) {
 182                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 183                                 "0439 Adapter failed to init, mbxCmd x%x "
 184                                 "READ_REV, mbxStatus x%x\n",
 185                                 mb->mbxCommand, mb->mbxStatus);
 186                 mempool_free( pmb, phba->mbox_mem_pool);
 187                 return -ERESTART;
 188         }
 189
 190
 191         /*
 192          * The value of rr must be 1 since the driver set the cv field to 1.
 193          * This setting requires the FW to set all revision fields.
 194          */
 195         if (mb->un.varRdRev.rr == 0) {
 196                 vp->rev.rBit = 0;
 197                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 198                                 "0440 Adapter failed to init, READ_REV has "
 199                                 "missing revision information.\n");
 200                 mempool_free(pmb, phba->mbox_mem_pool);
 201                 return -ERESTART;
 202         }
 203
 204         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 205                 mempool_free(pmb, phba->mbox_mem_pool);
 206                 return -EINVAL;
 207         }
 208
 209         /* Save information as VPD data */
 210         vp->rev.rBit = 1;
 211         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 212         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 213         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 214         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 215         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 216         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 217         vp->rev.smRev = mb->un.varRdRev.smRev;
 218         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 219         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 220         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 221         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 222         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 223         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 224         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 225         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 226
 227         /* If the sli feature level is less then 9, we must
 228          * tear down all RPIs and VPIs on link down if NPIV
 229          * is enabled.
 230          */
 231         if (vp->rev.feaLevelHigh < 9)
 232                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 233
 234         if (lpfc_is_LC_HBA(phba->pcidev->device))
 235                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 236                                                 sizeof (phba->RandomData));
 237
 238         /* Get adapter VPD information */
 239         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 240         if (!lpfc_vpd_data)
 241                 goto out_free_mbox;
 242         do {
 243                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 244                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 245
 246                 if (rc != MBX_SUCCESS) {
 247                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 248                                         "0441 VPD not present on adapter, "
 249                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 250                                         mb->mbxCommand, mb->mbxStatus);
 251                         mb->un.varDmp.word_cnt = 0;
 252                 }
 253                 /* dump mem may return a zero when finished or we got a
 254                  * mailbox error, either way we are done.
 255                  */
 256                 if (mb->un.varDmp.word_cnt == 0)
 257                         break;
 258
 259                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 260                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 261                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 262                                       lpfc_vpd_data + offset,
 263                                       mb->un.varDmp.word_cnt);
 264                 offset += mb->un.varDmp.word_cnt;
 265         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 266
 267         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 268
 269         kfree(lpfc_vpd_data);
 270 out_free_mbox:
 271         mempool_free(pmb, phba->mbox_mem_pool);
 272         return 0;
 273 }
 274
 275 /**
 276  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 277  * @phba: pointer to lpfc hba data structure.
 278  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 279  *
 280  * This is the completion handler for driver's configuring asynchronous event
 281  * mailbox command to the device. If the mailbox command returns successfully,
 282  * it will set internal async event support flag to 1; otherwise, it will
 283  * set internal async event support flag to 0.
 284  **/
 285 static void
 286 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 287 {
 288         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 289                 phba->temp_sensor_support = 1;
 290         else
 291                 phba->temp_sensor_support = 0;
 292         mempool_free(pmboxq, phba->mbox_mem_pool);
 293         return;
 294 }
 295
 296 /**
 297  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 298  * @phba: pointer to lpfc hba data structure.
 299  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 300  *
 301  * This is the completion handler for dump mailbox command for getting
 302  * wake up parameters. When this command complete, the response contain
 303  * Option rom version of the HBA. This function translate the version number
 304  * into a human readable string and store it in OptionROMVersion.
 305  **/
 306 static void
 307 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 308 {
 309         struct prog_id *prg;
 310         uint32_t prog_id_word;
 311         char dist = ' ';
 312         /* character array used for decoding dist type. */
 313         char dist_char[] = "nabx";
 314
 315         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 316                 mempool_free(pmboxq, phba->mbox_mem_pool);
 317                 return;
 318         }
 319
 320         prg = (struct prog_id *) &prog_id_word;
 321
 322         /* word 7 contain option rom version */
 323         prog_id_word = pmboxq->u.mb.un.varWords[7];
 324
 325         /* Decode the Option rom version word to a readable string */
 326         if (prg->dist < 4)
 327                 dist = dist_char[prg->dist];
 328
 329         if ((prg->dist == 3) && (prg->num == 0))
 330                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 331                         prg->ver, prg->rev, prg->lev);
 332         else
 333                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 334                         prg->ver, prg->rev, prg->lev,
 335                         dist, prg->num);
 336         mempool_free(pmboxq, phba->mbox_mem_pool);
 337         return;
 338 }
 339
 340 /**
 341  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 342  *      cfg_soft_wwnn, cfg_soft_wwpn
 343  * @vport: pointer to lpfc vport data structure.
 344  *
 345  *
 346  * Return codes
 347  *   None.
 348  **/
 349 void
 350 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 351 {
 352         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 353         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 354
 355         /* If the soft name exists then update it using the service params */
 356         if (vport->phba->cfg_soft_wwnn)
 357                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 358                            vport->fc_sparam.nodeName.u.wwn);
 359         if (vport->phba->cfg_soft_wwpn)
 360                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 361                            vport->fc_sparam.portName.u.wwn);
 362
 363         /*
 364          * If the name is empty or there exists a soft name
 365          * then copy the service params name, otherwise use the fc name
 366          */
 367         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 368                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 369                         sizeof(struct lpfc_name));
 370         else
 371                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 372                         sizeof(struct lpfc_name));
 373
 374         /*
 375          * If the port name has changed, then set the Param changes flag
 376          * to unreg the login
 377          */
 378         if (vport->fc_portname.u.wwn[0] != 0 &&
 379                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 380                         sizeof(struct lpfc_name)))
 381                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 382
 383         if (vport->fc_portname.u.wwn[0] == 0 ||
 384             vport->phba->cfg_soft_wwpn ||
 385             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 386             vport->vport_flag & FAWWPN_SET) {
 387                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 388                         sizeof(struct lpfc_name));
 389                 vport->vport_flag &= ~FAWWPN_SET;
 390                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 391                         vport->vport_flag |= FAWWPN_SET;
 392         }
 393         else
 394                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 395                         sizeof(struct lpfc_name));
 396 }
 397
 398 /**
 399  * lpfc_config_port_post - Perform lpfc initialization after config port
 400  * @phba: pointer to lpfc hba data structure.
 401  *
 402  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 403  * command call. It performs all internal resource and state setups on the
 404  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 405  * ELS ring timers, etc.
 406  *
 407  * Return codes
 408  *   0 - success.
 409  *   Any other value - error.
 410  **/
 411 int
 412 lpfc_config_port_post(struct lpfc_hba *phba)
 413 {
 414         struct lpfc_vport *vport = phba->pport;
 415         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 416         LPFC_MBOXQ_t *pmb;
 417         MAILBOX_t *mb;
 418         struct lpfc_dmabuf *mp;
 419         struct lpfc_sli *psli = &phba->sli;
 420         uint32_t status, timeout;
 421         int i, j;
 422         int rc;
 423
 424         spin_lock_irq(&phba->hbalock);
 425         /*
 426          * If the Config port completed correctly the HBA is not
 427          * over heated any more.
 428          */
 429         if (phba->over_temp_state == HBA_OVER_TEMP)
 430                 phba->over_temp_state = HBA_NORMAL_TEMP;
 431         spin_unlock_irq(&phba->hbalock);
 432
 433         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 434         if (!pmb) {
 435                 phba->link_state = LPFC_HBA_ERROR;
 436                 return -ENOMEM;
 437         }
 438         mb = &pmb->u.mb;
 439
 440         /* Get login parameters for NID.  */
 441         rc = lpfc_read_sparam(phba, pmb, 0);
 442         if (rc) {
 443                 mempool_free(pmb, phba->mbox_mem_pool);
 444                 return -ENOMEM;
 445         }
 446
 447         pmb->vport = vport;
 448         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 449                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 450                                 "0448 Adapter failed init, mbxCmd x%x "
 451                                 "READ_SPARM mbxStatus x%x\n",
 452                                 mb->mbxCommand, mb->mbxStatus);
 453                 phba->link_state = LPFC_HBA_ERROR;
 454                 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 455                 mempool_free(pmb, phba->mbox_mem_pool);
 456                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 457                 kfree(mp);
 458                 return -EIO;
 459         }
 460
 461         mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 462
 463         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 464         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 465         kfree(mp);
 466         pmb->ctx_buf = NULL;
 467         lpfc_update_vport_wwn(vport);
 468
 469         /* Update the fc_host data structures with new wwn. */
 470         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 471         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 472         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 473
 474         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 475         /* This should be consolidated into parse_vpd ? - mr */
 476         if (phba->SerialNumber[0] == 0) {
 477                 uint8_t *outptr;
 478
 479                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 480                 for (i = 0; i < 12; i++) {
 481                         status = *outptr++;
 482                         j = ((status & 0xf0) >> 4);
 483                         if (j <= 9)
 484                                 phba->SerialNumber[i] =
 485                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 486                         else
 487                                 phba->SerialNumber[i] =
 488                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 489                         i++;
 490                         j = (status & 0xf);
 491                         if (j <= 9)
 492                                 phba->SerialNumber[i] =
 493                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 494                         else
 495                                 phba->SerialNumber[i] =
 496                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 497                 }
 498         }
 499
 500         lpfc_read_config(phba, pmb);
 501         pmb->vport = vport;
 502         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 503                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 504                                 "0453 Adapter failed to init, mbxCmd x%x "
 505                                 "READ_CONFIG, mbxStatus x%x\n",
 506                                 mb->mbxCommand, mb->mbxStatus);
 507                 phba->link_state = LPFC_HBA_ERROR;
 508                 mempool_free( pmb, phba->mbox_mem_pool);
 509                 return -EIO;
 510         }
 511
 512         /* Check if the port is disabled */
 513         lpfc_sli_read_link_ste(phba);
 514
 515         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 516         if (phba->cfg_hba_queue_depth > mb->un.varRdConfig.max_xri) {
 517                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 518                                 "3359 HBA queue depth changed from %d to %d\n",
 519                                 phba->cfg_hba_queue_depth,
 520                                 mb->un.varRdConfig.max_xri);
 521                 phba->cfg_hba_queue_depth = mb->un.varRdConfig.max_xri;
 522         }
 523
 524         phba->lmt = mb->un.varRdConfig.lmt;
 525
 526         /* Get the default values for Model Name and Description */
 527         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 528
 529         phba->link_state = LPFC_LINK_DOWN;
 530
 531         /* Only process IOCBs on ELS ring till hba_state is READY */
 532         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 533                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 534         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 535                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 536
 537         /* Post receive buffers for desired rings */
 538         if (phba->sli_rev != 3)
 539                 lpfc_post_rcv_buf(phba);
 540
 541         /*
 542          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 543          */
 544         if (phba->intr_type == MSIX) {
 545                 rc = lpfc_config_msi(phba, pmb);
 546                 if (rc) {
 547                         mempool_free(pmb, phba->mbox_mem_pool);
 548                         return -EIO;
 549                 }
 550                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 551                 if (rc != MBX_SUCCESS) {
 552                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 553                                         "0352 Config MSI mailbox command "
 554                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 555                                         pmb->u.mb.mbxCommand,
 556                                         pmb->u.mb.mbxStatus);
 557                         mempool_free(pmb, phba->mbox_mem_pool);
 558                         return -EIO;
 559                 }
 560         }
 561
 562         spin_lock_irq(&phba->hbalock);
 563         /* Initialize ERATT handling flag */
 564         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 565
 566         /* Enable appropriate host interrupts */
 567         if (lpfc_readl(phba->HCregaddr, &status)) {
 568                 spin_unlock_irq(&phba->hbalock);
 569                 return -EIO;
 570         }
 571         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 572         if (psli->num_rings > 0)
 573                 status |= HC_R0INT_ENA;
 574         if (psli->num_rings > 1)
 575                 status |= HC_R1INT_ENA;
 576         if (psli->num_rings > 2)
 577                 status |= HC_R2INT_ENA;
 578         if (psli->num_rings > 3)
 579                 status |= HC_R3INT_ENA;
 580
 581         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 582             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 583                 status &= ~(HC_R0INT_ENA);
 584
 585         writel(status, phba->HCregaddr);
 586         readl(phba->HCregaddr); /* flush */
 587         spin_unlock_irq(&phba->hbalock);
 588
 589         /* Set up ring-0 (ELS) timer */
 590         timeout = phba->fc_ratov * 2;
 591         mod_timer(&vport->els_tmofunc,
 592                   jiffies + msecs_to_jiffies(1000 * timeout));
 593         /* Set up heart beat (HB) timer */
 594         mod_timer(&phba->hb_tmofunc,
 595                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 596         phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
 597         phba->last_completion_time = jiffies;
 598         /* Set up error attention (ERATT) polling timer */
 599         mod_timer(&phba->eratt_poll,
 600                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 601
 602         if (phba->hba_flag & LINK_DISABLED) {
 603                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 604                                 "2598 Adapter Link is disabled.\n");
 605                 lpfc_down_link(phba, pmb);
 606                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 607                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 608                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 609                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 610                                         "2599 Adapter failed to issue DOWN_LINK"
 611                                         " mbox command rc 0x%x\n", rc);
 612
 613                         mempool_free(pmb, phba->mbox_mem_pool);
 614                         return -EIO;
 615                 }
 616         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 617                 mempool_free(pmb, phba->mbox_mem_pool);
 618                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 619                 if (rc)
 620                         return rc;
 621         }
 622         /* MBOX buffer will be freed in mbox compl */
 623         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 624         if (!pmb) {
 625                 phba->link_state = LPFC_HBA_ERROR;
 626                 return -ENOMEM;
 627         }
 628
 629         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 630         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 631         pmb->vport = phba->pport;
 632         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 633
 634         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 635                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 636                                 "0456 Adapter failed to issue "
 637                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 638                                 rc);
 639                 mempool_free(pmb, phba->mbox_mem_pool);
 640         }
 641
 642         /* Get Option rom version */
 643         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 644         if (!pmb) {
 645                 phba->link_state = LPFC_HBA_ERROR;
 646                 return -ENOMEM;
 647         }
 648
 649         lpfc_dump_wakeup_param(phba, pmb);
 650         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 651         pmb->vport = phba->pport;
 652         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 653
 654         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 655                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 656                                 "0435 Adapter failed "
 657                                 "to get Option ROM version status x%x\n", rc);
 658                 mempool_free(pmb, phba->mbox_mem_pool);
 659         }
 660
 661         return 0;
 662 }
 663
 664 /**
 665  * lpfc_hba_init_link - Initialize the FC link
 666  * @phba: pointer to lpfc hba data structure.
 667  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 668  *
 669  * This routine will issue the INIT_LINK mailbox command call.
 670  * It is available to other drivers through the lpfc_hba data
 671  * structure for use as a delayed link up mechanism with the
 672  * module parameter lpfc_suppress_link_up.
 673  *
 674  * Return code
 675  *              0 - success
 676  *              Any other value - error
 677  **/
 678 static int
 679 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 680 {
 681         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 682 }
 683
 684 /**
 685  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 686  * @phba: pointer to lpfc hba data structure.
 687  * @fc_topology: desired fc topology.
 688  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 689  *
 690  * This routine will issue the INIT_LINK mailbox command call.
 691  * It is available to other drivers through the lpfc_hba data
 692  * structure for use as a delayed link up mechanism with the
 693  * module parameter lpfc_suppress_link_up.
 694  *
 695  * Return code
 696  *              0 - success
 697  *              Any other value - error
 698  **/
 699 int
 700 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 701                                uint32_t flag)
 702 {
 703         struct lpfc_vport *vport = phba->pport;
 704         LPFC_MBOXQ_t *pmb;
 705         MAILBOX_t *mb;
 706         int rc;
 707
 708         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 709         if (!pmb) {
 710                 phba->link_state = LPFC_HBA_ERROR;
 711                 return -ENOMEM;
 712         }
 713         mb = &pmb->u.mb;
 714         pmb->vport = vport;
 715
 716         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 717             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 718              !(phba->lmt & LMT_1Gb)) ||
 719             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 720              !(phba->lmt & LMT_2Gb)) ||
 721             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 722              !(phba->lmt & LMT_4Gb)) ||
 723             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 724              !(phba->lmt & LMT_8Gb)) ||
 725             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 726              !(phba->lmt & LMT_10Gb)) ||
 727             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 728              !(phba->lmt & LMT_16Gb)) ||
 729             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 730              !(phba->lmt & LMT_32Gb)) ||
 731             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 732              !(phba->lmt & LMT_64Gb))) {
 733                 /* Reset link speed to auto */
 734                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 735                                 "1302 Invalid speed for this board:%d "
 736                                 "Reset link speed to auto.\n",
 737                                 phba->cfg_link_speed);
 738                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 739         }
 740         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 741         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 742         if (phba->sli_rev < LPFC_SLI_REV4)
 743                 lpfc_set_loopback_flag(phba);
 744         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 745         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 746                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 747                                 "0498 Adapter failed to init, mbxCmd x%x "
 748                                 "INIT_LINK, mbxStatus x%x\n",
 749                                 mb->mbxCommand, mb->mbxStatus);
 750                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 751                         /* Clear all interrupt enable conditions */
 752                         writel(0, phba->HCregaddr);
 753                         readl(phba->HCregaddr); /* flush */
 754                         /* Clear all pending interrupts */
 755                         writel(0xffffffff, phba->HAregaddr);
 756                         readl(phba->HAregaddr); /* flush */
 757                 }
 758                 phba->link_state = LPFC_HBA_ERROR;
 759                 if (rc != MBX_BUSY || flag == MBX_POLL)
 760                         mempool_free(pmb, phba->mbox_mem_pool);
 761                 return -EIO;
 762         }
 763         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 764         if (flag == MBX_POLL)
 765                 mempool_free(pmb, phba->mbox_mem_pool);
 766
 767         return 0;
 768 }
 769
 770 /**
 771  * lpfc_hba_down_link - this routine downs the FC link
 772  * @phba: pointer to lpfc hba data structure.
 773  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 774  *
 775  * This routine will issue the DOWN_LINK mailbox command call.
 776  * It is available to other drivers through the lpfc_hba data
 777  * structure for use to stop the link.
 778  *
 779  * Return code
 780  *              0 - success
 781  *              Any other value - error
 782  **/
 783 static int
 784 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 785 {
 786         LPFC_MBOXQ_t *pmb;
 787         int rc;
 788
 789         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 790         if (!pmb) {
 791                 phba->link_state = LPFC_HBA_ERROR;
 792                 return -ENOMEM;
 793         }
 794
 795         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 796                         "0491 Adapter Link is disabled.\n");
 797         lpfc_down_link(phba, pmb);
 798         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 799         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 800         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 801                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 802                                 "2522 Adapter failed to issue DOWN_LINK"
 803                                 " mbox command rc 0x%x\n", rc);
 804
 805                 mempool_free(pmb, phba->mbox_mem_pool);
 806                 return -EIO;
 807         }
 808         if (flag == MBX_POLL)
 809                 mempool_free(pmb, phba->mbox_mem_pool);
 810
 811         return 0;
 812 }
 813
 814 /**
 815  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 816  * @phba: pointer to lpfc HBA data structure.
 817  *
 818  * This routine will do LPFC uninitialization before the HBA is reset when
 819  * bringing down the SLI Layer.
 820  *
 821  * Return codes
 822  *   0 - success.
 823  *   Any other value - error.
 824  **/
 825 int
 826 lpfc_hba_down_prep(struct lpfc_hba *phba)
 827 {
 828         struct lpfc_vport **vports;
 829         int i;
 830
 831         if (phba->sli_rev <= LPFC_SLI_REV3) {
 832                 /* Disable interrupts */
 833                 writel(0, phba->HCregaddr);
 834                 readl(phba->HCregaddr); /* flush */
 835         }
 836
 837         if (phba->pport->load_flag & FC_UNLOADING)
 838                 lpfc_cleanup_discovery_resources(phba->pport);
 839         else {
 840                 vports = lpfc_create_vport_work_array(phba);
 841                 if (vports != NULL)
 842                         for (i = 0; i <= phba->max_vports &&
 843                                 vports[i] != NULL; i++)
 844                                 lpfc_cleanup_discovery_resources(vports[i]);
 845                 lpfc_destroy_vport_work_array(phba, vports);
 846         }
 847         return 0;
 848 }
 849
 850 /**
 851  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 852  * rspiocb which got deferred
 853  *
 854  * @phba: pointer to lpfc HBA data structure.
 855  *
 856  * This routine will cleanup completed slow path events after HBA is reset
 857  * when bringing down the SLI Layer.
 858  *
 859  *
 860  * Return codes
 861  *   void.
 862  **/
 863 static void
 864 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 865 {
 866         struct lpfc_iocbq *rspiocbq;
 867         struct hbq_dmabuf *dmabuf;
 868         struct lpfc_cq_event *cq_event;
 869
 870         spin_lock_irq(&phba->hbalock);
 871         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 872         spin_unlock_irq(&phba->hbalock);
 873
 874         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 875                 /* Get the response iocb from the head of work queue */
 876                 spin_lock_irq(&phba->hbalock);
 877                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 878                                  cq_event, struct lpfc_cq_event, list);
 879                 spin_unlock_irq(&phba->hbalock);
 880
 881                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 882                 case CQE_CODE_COMPL_WQE:
 883                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 884                                                  cq_event);
 885                         lpfc_sli_release_iocbq(phba, rspiocbq);
 886                         break;
 887                 case CQE_CODE_RECEIVE:
 888                 case CQE_CODE_RECEIVE_V1:
 889                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 890                                               cq_event);
 891                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 892                 }
 893         }
 894 }
 895
 896 /**
 897  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 898  * @phba: pointer to lpfc HBA data structure.
 899  *
 900  * This routine will cleanup posted ELS buffers after the HBA is reset
 901  * when bringing down the SLI Layer.
 902  *
 903  *
 904  * Return codes
 905  *   void.
 906  **/
 907 static void
 908 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 909 {
 910         struct lpfc_sli *psli = &phba->sli;
 911         struct lpfc_sli_ring *pring;
 912         struct lpfc_dmabuf *mp, *next_mp;
 913         LIST_HEAD(buflist);
 914         int count;
 915
 916         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 917                 lpfc_sli_hbqbuf_free_all(phba);
 918         else {
 919                 /* Cleanup preposted buffers on the ELS ring */
 920                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 921                 spin_lock_irq(&phba->hbalock);
 922                 list_splice_init(&pring->postbufq, &buflist);
 923                 spin_unlock_irq(&phba->hbalock);
 924
 925                 count = 0;
 926                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 927                         list_del(&mp->list);
 928                         count++;
 929                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 930                         kfree(mp);
 931                 }
 932
 933                 spin_lock_irq(&phba->hbalock);
 934                 pring->postbufq_cnt -= count;
 935                 spin_unlock_irq(&phba->hbalock);
 936         }
 937 }
 938
 939 /**
 940  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 941  * @phba: pointer to lpfc HBA data structure.
 942  *
 943  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 944  * down the SLI Layer.
 945  *
 946  * Return codes
 947  *   void
 948  **/
 949 static void
 950 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 951 {
 952         struct lpfc_sli *psli = &phba->sli;
 953         struct lpfc_queue *qp = NULL;
 954         struct lpfc_sli_ring *pring;
 955         LIST_HEAD(completions);
 956         int i;
 957         struct lpfc_iocbq *piocb, *next_iocb;
 958
 959         if (phba->sli_rev != LPFC_SLI_REV4) {
 960                 for (i = 0; i < psli->num_rings; i++) {
 961                         pring = &psli->sli3_ring[i];
 962                         spin_lock_irq(&phba->hbalock);
 963                         /* At this point in time the HBA is either reset or DOA
 964                          * Nothing should be on txcmplq as it will
 965                          * NEVER complete.
 966                          */
 967                         list_splice_init(&pring->txcmplq, &completions);
 968                         pring->txcmplq_cnt = 0;
 969                         spin_unlock_irq(&phba->hbalock);
 970
 971                         lpfc_sli_abort_iocb_ring(phba, pring);
 972                 }
 973                 /* Cancel all the IOCBs from the completions list */
 974                 lpfc_sli_cancel_iocbs(phba, &completions,
 975                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 976                 return;
 977         }
 978         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 979                 pring = qp->pring;
 980                 if (!pring)
 981                         continue;
 982                 spin_lock_irq(&pring->ring_lock);
 983                 list_for_each_entry_safe(piocb, next_iocb,
 984                                          &pring->txcmplq, list)
 985                         piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
 986                 list_splice_init(&pring->txcmplq, &completions);
 987                 pring->txcmplq_cnt = 0;
 988                 spin_unlock_irq(&pring->ring_lock);
 989                 lpfc_sli_abort_iocb_ring(phba, pring);
 990         }
 991         /* Cancel all the IOCBs from the completions list */
 992         lpfc_sli_cancel_iocbs(phba, &completions,
 993                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 994 }
 995
 996 /**
 997  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 998  * @phba: pointer to lpfc HBA data structure.
 999  *
1000  * This routine will do uninitialization after the HBA is reset when bring
1001  * down the SLI Layer.
1002  *
1003  * Return codes
1004  *   0 - success.
1005  *   Any other value - error.
1006  **/
1007 static int
1008 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1009 {
1010         lpfc_hba_free_post_buf(phba);
1011         lpfc_hba_clean_txcmplq(phba);
1012         return 0;
1013 }
1014
1015 /**
1016  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1017  * @phba: pointer to lpfc HBA data structure.
1018  *
1019  * This routine will do uninitialization after the HBA is reset when bring
1020  * down the SLI Layer.
1021  *
1022  * Return codes
1023  *   0 - success.
1024  *   Any other value - error.
1025  **/
1026 static int
1027 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1028 {
1029         struct lpfc_io_buf *psb, *psb_next;
1030         struct lpfc_async_xchg_ctx *ctxp, *ctxp_next;
1031         struct lpfc_sli4_hdw_queue *qp;
1032         LIST_HEAD(aborts);
1033         LIST_HEAD(nvme_aborts);
1034         LIST_HEAD(nvmet_aborts);
1035         struct lpfc_sglq *sglq_entry = NULL;
1036         int cnt, idx;
1037
1038
1039         lpfc_sli_hbqbuf_free_all(phba);
1040         lpfc_hba_clean_txcmplq(phba);
1041
1042         /* At this point in time the HBA is either reset or DOA. Either
1043          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1044          * on the lpfc_els_sgl_list so that it can either be freed if the
1045          * driver is unloading or reposted if the driver is restarting
1046          * the port.
1047          */
1048
1049         /* sgl_list_lock required because worker thread uses this
1050          * list.
1051          */
1052         spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
1053         list_for_each_entry(sglq_entry,
1054                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1055                 sglq_entry->state = SGL_FREED;
1056
1057         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1058                         &phba->sli4_hba.lpfc_els_sgl_list);
1059
1060
1061         spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
1062
1063         /* abts_xxxx_buf_list_lock required because worker thread uses this
1064          * list.
1065          */
1066         spin_lock_irq(&phba->hbalock);
1067         cnt = 0;
1068         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1069                 qp = &phba->sli4_hba.hdwq[idx];
1070
1071                 spin_lock(&qp->abts_io_buf_list_lock);
1072                 list_splice_init(&qp->lpfc_abts_io_buf_list,
1073                                  &aborts);
1074
1075                 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1076                         psb->pCmd = NULL;
1077                         psb->status = IOSTAT_SUCCESS;
1078                         cnt++;
1079                 }
1080                 spin_lock(&qp->io_buf_list_put_lock);
1081                 list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
1082                 qp->put_io_bufs += qp->abts_scsi_io_bufs;
1083                 qp->put_io_bufs += qp->abts_nvme_io_bufs;
1084                 qp->abts_scsi_io_bufs = 0;
1085                 qp->abts_nvme_io_bufs = 0;
1086                 spin_unlock(&qp->io_buf_list_put_lock);
1087                 spin_unlock(&qp->abts_io_buf_list_lock);
1088         }
1089         spin_unlock_irq(&phba->hbalock);
1090
1091         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1092                 spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1093                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1094                                  &nvmet_aborts);
1095                 spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1096                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1097                         ctxp->flag &= ~(LPFC_NVME_XBUSY | LPFC_NVME_ABORT_OP);
1098                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1099                 }
1100         }
1101
1102         lpfc_sli4_free_sp_events(phba);
1103         return cnt;
1104 }
1105
1106 /**
1107  * lpfc_hba_down_post - Wrapper func for hba down post routine
1108  * @phba: pointer to lpfc HBA data structure.
1109  *
1110  * This routine wraps the actual SLI3 or SLI4 routine for performing
1111  * uninitialization after the HBA is reset when bring down the SLI Layer.
1112  *
1113  * Return codes
1114  *   0 - success.
1115  *   Any other value - error.
1116  **/
1117 int
1118 lpfc_hba_down_post(struct lpfc_hba *phba)
1119 {
1120         return (*phba->lpfc_hba_down_post)(phba);
1121 }
1122
1123 /**
1124  * lpfc_hb_timeout - The HBA-timer timeout handler
1125  * @t: timer context used to obtain the pointer to lpfc hba data structure.
1126  *
1127  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1128  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1129  * work-port-events bitmap and the worker thread is notified. This timeout
1130  * event will be used by the worker thread to invoke the actual timeout
1131  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1132  * be performed in the timeout handler and the HBA timeout event bit shall
1133  * be cleared by the worker thread after it has taken the event bitmap out.
1134  **/
1135 static void
1136 lpfc_hb_timeout(struct timer_list *t)
1137 {
1138         struct lpfc_hba *phba;
1139         uint32_t tmo_posted;
1140         unsigned long iflag;
1141
1142         phba = from_timer(phba, t, hb_tmofunc);
1143
1144         /* Check for heart beat timeout conditions */
1145         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1146         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1147         if (!tmo_posted)
1148                 phba->pport->work_port_events |= WORKER_HB_TMO;
1149         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1150
1151         /* Tell the worker thread there is work to do */
1152         if (!tmo_posted)
1153                 lpfc_worker_wake_up(phba);
1154         return;
1155 }
1156
1157 /**
1158  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1159  * @t: timer context used to obtain the pointer to lpfc hba data structure.
1160  *
1161  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1162  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1163  * work-port-events bitmap and the worker thread is notified. This timeout
1164  * event will be used by the worker thread to invoke the actual timeout
1165  * handler routine, lpfc_rrq_handler. Any periodical operations will
1166  * be performed in the timeout handler and the RRQ timeout event bit shall
1167  * be cleared by the worker thread after it has taken the event bitmap out.
1168  **/
1169 static void
1170 lpfc_rrq_timeout(struct timer_list *t)
1171 {
1172         struct lpfc_hba *phba;
1173         unsigned long iflag;
1174
1175         phba = from_timer(phba, t, rrq_tmr);
1176         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1177         if (!(phba->pport->load_flag & FC_UNLOADING))
1178                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1179         else
1180                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1181         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1182
1183         if (!(phba->pport->load_flag & FC_UNLOADING))
1184                 lpfc_worker_wake_up(phba);
1185 }
1186
1187 /**
1188  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1189  * @phba: pointer to lpfc hba data structure.
1190  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1191  *
1192  * This is the callback function to the lpfc heart-beat mailbox command.
1193  * If configured, the lpfc driver issues the heart-beat mailbox command to
1194  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1195  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1196  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1197  * heart-beat outstanding state. Once the mailbox command comes back and
1198  * no error conditions detected, the heart-beat mailbox command timer is
1199  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1200  * state is cleared for the next heart-beat. If the timer expired with the
1201  * heart-beat outstanding state set, the driver will put the HBA offline.
1202  **/
1203 static void
1204 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1205 {
1206         unsigned long drvr_flag;
1207
1208         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1209         phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
1210         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1211
1212         /* Check and reset heart-beat timer if necessary */
1213         mempool_free(pmboxq, phba->mbox_mem_pool);
1214         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1215                 !(phba->link_state == LPFC_HBA_ERROR) &&
1216                 !(phba->pport->load_flag & FC_UNLOADING))
1217                 mod_timer(&phba->hb_tmofunc,
1218                           jiffies +
1219                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1220         return;
1221 }
1222
1223 /*
1224  * lpfc_idle_stat_delay_work - idle_stat tracking
1225  *
1226  * This routine tracks per-cq idle_stat and determines polling decisions.
1227  *
1228  * Return codes:
1229  *   None
1230  **/
1231 static void
1232 lpfc_idle_stat_delay_work(struct work_struct *work)
1233 {
1234         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1235                                              struct lpfc_hba,
1236                                              idle_stat_delay_work);
1237         struct lpfc_queue *cq;
1238         struct lpfc_sli4_hdw_queue *hdwq;
1239         struct lpfc_idle_stat *idle_stat;
1240         u32 i, idle_percent;
1241         u64 wall, wall_idle, diff_wall, diff_idle, busy_time;
1242
1243         if (phba->pport->load_flag & FC_UNLOADING)
1244                 return;
1245
1246         if (phba->link_state == LPFC_HBA_ERROR ||
1247             phba->pport->fc_flag & FC_OFFLINE_MODE ||
1248             phba->cmf_active_mode != LPFC_CFG_OFF)
1249                 goto requeue;
1250
1251         for_each_present_cpu(i) {
1252                 hdwq = &phba->sli4_hba.hdwq[phba->sli4_hba.cpu_map[i].hdwq];
1253                 cq = hdwq->io_cq;
1254
1255                 /* Skip if we've already handled this cq's primary CPU */
1256                 if (cq->chann != i)
1257                         continue;
1258
1259                 idle_stat = &phba->sli4_hba.idle_stat[i];
1260
1261                 /* get_cpu_idle_time returns values as running counters. Thus,
1262                  * to know the amount for this period, the prior counter values
1263                  * need to be subtracted from the current counter values.
1264                  * From there, the idle time stat can be calculated as a
1265                  * percentage of 100 - the sum of the other consumption times.
1266                  */
1267                 wall_idle = get_cpu_idle_time(i, &wall, 1);
1268                 diff_idle = wall_idle - idle_stat->prev_idle;
1269                 diff_wall = wall - idle_stat->prev_wall;
1270
1271                 if (diff_wall <= diff_idle)
1272                         busy_time = 0;
1273                 else
1274                         busy_time = diff_wall - diff_idle;
1275
1276                 idle_percent = div64_u64(100 * busy_time, diff_wall);
1277                 idle_percent = 100 - idle_percent;
1278
1279                 if (idle_percent < 15)
1280                         cq->poll_mode = LPFC_QUEUE_WORK;
1281                 else
1282                         cq->poll_mode = LPFC_IRQ_POLL;
1283
1284                 idle_stat->prev_idle = wall_idle;
1285                 idle_stat->prev_wall = wall;
1286         }
1287
1288 requeue:
1289         schedule_delayed_work(&phba->idle_stat_delay_work,
1290                               msecs_to_jiffies(LPFC_IDLE_STAT_DELAY));
1291 }
1292
1293 static void
1294 lpfc_hb_eq_delay_work(struct work_struct *work)
1295 {
1296         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1297                                              struct lpfc_hba, eq_delay_work);
1298         struct lpfc_eq_intr_info *eqi, *eqi_new;
1299         struct lpfc_queue *eq, *eq_next;
1300         unsigned char *ena_delay = NULL;
1301         uint32_t usdelay;
1302         int i;
1303
1304         if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
1305                 return;
1306
1307         if (phba->link_state == LPFC_HBA_ERROR ||
1308             phba->pport->fc_flag & FC_OFFLINE_MODE)
1309                 goto requeue;
1310
1311         ena_delay = kcalloc(phba->sli4_hba.num_possible_cpu, sizeof(*ena_delay),
1312                             GFP_KERNEL);
1313         if (!ena_delay)
1314                 goto requeue;
1315
1316         for (i = 0; i < phba->cfg_irq_chann; i++) {
1317                 /* Get the EQ corresponding to the IRQ vector */
1318                 eq = phba->sli4_hba.hba_eq_hdl[i].eq;
1319                 if (!eq)
1320                         continue;
1321                 if (eq->q_mode || eq->q_flag & HBA_EQ_DELAY_CHK) {
1322                         eq->q_flag &= ~HBA_EQ_DELAY_CHK;
1323                         ena_delay[eq->last_cpu] = 1;
1324                 }
1325         }
1326
1327         for_each_present_cpu(i) {
1328                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1329                 if (ena_delay[i]) {
1330                         usdelay = (eqi->icnt >> 10) * LPFC_EQ_DELAY_STEP;
1331                         if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1332                                 usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1333                 } else {
1334                         usdelay = 0;
1335                 }
1336
1337                 eqi->icnt = 0;
1338
1339                 list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1340                         if (unlikely(eq->last_cpu != i)) {
1341                                 eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1342                                                       eq->last_cpu);
1343                                 list_move_tail(&eq->cpu_list, &eqi_new->list);
1344                                 continue;
1345                         }
1346                         if (usdelay != eq->q_mode)
1347                                 lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
1348                                                          usdelay);
1349                 }
1350         }
1351
1352         kfree(ena_delay);
1353
1354 requeue:
1355         queue_delayed_work(phba->wq, &phba->eq_delay_work,
1356                            msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1357 }
1358
1359 /**
1360  * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1361  * @phba: pointer to lpfc hba data structure.
1362  *
1363  * For each heartbeat, this routine does some heuristic methods to adjust
1364  * XRI distribution. The goal is to fully utilize free XRIs.
1365  **/
1366 static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1367 {
1368         u32 i;
1369         u32 hwq_count;
1370
1371         hwq_count = phba->cfg_hdw_queue;
1372         for (i = 0; i < hwq_count; i++) {
1373                 /* Adjust XRIs in private pool */
1374                 lpfc_adjust_pvt_pool_count(phba, i);
1375
1376                 /* Adjust high watermark */
1377                 lpfc_adjust_high_watermark(phba, i);
1378
1379 #ifdef LPFC_MXP_STAT
1380                 /* Snapshot pbl, pvt and busy count */
1381                 lpfc_snapshot_mxp(phba, i);
1382 #endif
1383         }
1384 }
1385
1386 /**
1387  * lpfc_issue_hb_mbox - Issues heart-beat mailbox command
1388  * @phba: pointer to lpfc hba data structure.
1389  *
1390  * If a HB mbox is not already in progrees, this routine will allocate
1391  * a LPFC_MBOXQ_t, populate it with a MBX_HEARTBEAT (0x31) command,
1392  * and issue it. The HBA_HBEAT_INP flag means the command is in progress.
1393  **/
1394 int
1395 lpfc_issue_hb_mbox(struct lpfc_hba *phba)
1396 {
1397         LPFC_MBOXQ_t *pmboxq;
1398         int retval;
1399
1400         /* Is a Heartbeat mbox already in progress */
1401         if (phba->hba_flag & HBA_HBEAT_INP)
1402                 return 0;
1403
1404         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1405         if (!pmboxq)
1406                 return -ENOMEM;
1407
1408         lpfc_heart_beat(phba, pmboxq);
1409         pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1410         pmboxq->vport = phba->pport;
1411         retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
1412
1413         if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
1414                 mempool_free(pmboxq, phba->mbox_mem_pool);
1415                 return -ENXIO;
1416         }
1417         phba->hba_flag |= HBA_HBEAT_INP;
1418
1419         return 0;
1420 }
1421
1422 /**
1423  * lpfc_issue_hb_tmo - Signals heartbeat timer to issue mbox command
1424  * @phba: pointer to lpfc hba data structure.
1425  *
1426  * The heartbeat timer (every 5 sec) will fire. If the HBA_HBEAT_TMO
1427  * flag is set, it will force a MBX_HEARTBEAT mbox command, regardless
1428  * of the value of lpfc_enable_hba_heartbeat.
1429  * If lpfc_enable_hba_heartbeat is set, the timeout routine will always
1430  * try to issue a MBX_HEARTBEAT mbox command.
1431  **/
1432 void
1433 lpfc_issue_hb_tmo(struct lpfc_hba *phba)
1434 {
1435         if (phba->cfg_enable_hba_heartbeat)
1436                 return;
1437         phba->hba_flag |= HBA_HBEAT_TMO;
1438 }
1439
1440 /**
1441  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1442  * @phba: pointer to lpfc hba data structure.
1443  *
1444  * This is the actual HBA-timer timeout handler to be invoked by the worker
1445  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1446  * handler performs any periodic operations needed for the device. If such
1447  * periodic event has already been attended to either in the interrupt handler
1448  * or by processing slow-ring or fast-ring events within the HBA-timer
1449  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1450  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1451  * is configured and there is no heart-beat mailbox command outstanding, a
1452  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1453  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1454  * to offline.
1455  **/
1456 void
1457 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1458 {
1459         struct lpfc_vport **vports;
1460         struct lpfc_dmabuf *buf_ptr;
1461         int retval = 0;
1462         int i, tmo;
1463         struct lpfc_sli *psli = &phba->sli;
1464         LIST_HEAD(completions);
1465
1466         if (phba->cfg_xri_rebalancing) {
1467                 /* Multi-XRI pools handler */
1468                 lpfc_hb_mxp_handler(phba);
1469         }
1470
1471         vports = lpfc_create_vport_work_array(phba);
1472         if (vports != NULL)
1473                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1474                         lpfc_rcv_seq_check_edtov(vports[i]);
1475                         lpfc_fdmi_change_check(vports[i]);
1476                 }
1477         lpfc_destroy_vport_work_array(phba, vports);
1478
1479         if ((phba->link_state == LPFC_HBA_ERROR) ||
1480                 (phba->pport->load_flag & FC_UNLOADING) ||
1481                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1482                 return;
1483
1484         if (phba->elsbuf_cnt &&
1485                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1486                 spin_lock_irq(&phba->hbalock);
1487                 list_splice_init(&phba->elsbuf, &completions);
1488                 phba->elsbuf_cnt = 0;
1489                 phba->elsbuf_prev_cnt = 0;
1490                 spin_unlock_irq(&phba->hbalock);
1491
1492                 while (!list_empty(&completions)) {
1493                         list_remove_head(&completions, buf_ptr,
1494                                 struct lpfc_dmabuf, list);
1495                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1496                         kfree(buf_ptr);
1497                 }
1498         }
1499         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1500
1501         /* If there is no heart beat outstanding, issue a heartbeat command */
1502         if (phba->cfg_enable_hba_heartbeat) {
1503                 /* If IOs are completing, no need to issue a MBX_HEARTBEAT */
1504                 spin_lock_irq(&phba->pport->work_port_lock);
1505                 if (time_after(phba->last_completion_time +
1506                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1507                                 jiffies)) {
1508                         spin_unlock_irq(&phba->pport->work_port_lock);
1509                         if (phba->hba_flag & HBA_HBEAT_INP)
1510                                 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1511                         else
1512                                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1513                         goto out;
1514                 }
1515                 spin_unlock_irq(&phba->pport->work_port_lock);
1516
1517                 /* Check if a MBX_HEARTBEAT is already in progress */
1518                 if (phba->hba_flag & HBA_HBEAT_INP) {
1519                         /*
1520                          * If heart beat timeout called with HBA_HBEAT_INP set
1521                          * we need to give the hb mailbox cmd a chance to
1522                          * complete or TMO.
1523                          */
1524                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1525                                 "0459 Adapter heartbeat still outstanding: "
1526                                 "last compl time was %d ms.\n",
1527                                 jiffies_to_msecs(jiffies
1528                                          - phba->last_completion_time));
1529                         tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1530                 } else {
1531                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1532                                 (list_empty(&psli->mboxq))) {
1533
1534                                 retval = lpfc_issue_hb_mbox(phba);
1535                                 if (retval) {
1536                                         tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1537                                         goto out;
1538                                 }
1539                                 phba->skipped_hb = 0;
1540                         } else if (time_before_eq(phba->last_completion_time,
1541                                         phba->skipped_hb)) {
1542                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1543                                         "2857 Last completion time not "
1544                                         " updated in %d ms\n",
1545                                         jiffies_to_msecs(jiffies
1546                                                  - phba->last_completion_time));
1547                         } else
1548                                 phba->skipped_hb = jiffies;
1549
1550                         tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1551                         goto out;
1552                 }
1553         } else {
1554                 /* Check to see if we want to force a MBX_HEARTBEAT */
1555                 if (phba->hba_flag & HBA_HBEAT_TMO) {
1556                         retval = lpfc_issue_hb_mbox(phba);
1557                         if (retval)
1558                                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1559                         else
1560                                 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1561                         goto out;
1562                 }
1563                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1564         }
1565 out:
1566         mod_timer(&phba->hb_tmofunc, jiffies + msecs_to_jiffies(tmo));
1567 }
1568
1569 /**
1570  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1571  * @phba: pointer to lpfc hba data structure.
1572  *
1573  * This routine is called to bring the HBA offline when HBA hardware error
1574  * other than Port Error 6 has been detected.
1575  **/
1576 static void
1577 lpfc_offline_eratt(struct lpfc_hba *phba)
1578 {
1579         struct lpfc_sli   *psli = &phba->sli;
1580
1581         spin_lock_irq(&phba->hbalock);
1582         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1583         spin_unlock_irq(&phba->hbalock);
1584         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1585
1586         lpfc_offline(phba);
1587         lpfc_reset_barrier(phba);
1588         spin_lock_irq(&phba->hbalock);
1589         lpfc_sli_brdreset(phba);
1590         spin_unlock_irq(&phba->hbalock);
1591         lpfc_hba_down_post(phba);
1592         lpfc_sli_brdready(phba, HS_MBRDY);
1593         lpfc_unblock_mgmt_io(phba);
1594         phba->link_state = LPFC_HBA_ERROR;
1595         return;
1596 }
1597
1598 /**
1599  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1600  * @phba: pointer to lpfc hba data structure.
1601  *
1602  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1603  * other than Port Error 6 has been detected.
1604  **/
1605 void
1606 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1607 {
1608         spin_lock_irq(&phba->hbalock);
1609         phba->link_state = LPFC_HBA_ERROR;
1610         spin_unlock_irq(&phba->hbalock);
1611
1612         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1613         lpfc_sli_flush_io_rings(phba);
1614         lpfc_offline(phba);
1615         lpfc_hba_down_post(phba);
1616         lpfc_unblock_mgmt_io(phba);
1617 }
1618
1619 /**
1620  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1621  * @phba: pointer to lpfc hba data structure.
1622  *
1623  * This routine is invoked to handle the deferred HBA hardware error
1624  * conditions. This type of error is indicated by HBA by setting ER1
1625  * and another ER bit in the host status register. The driver will
1626  * wait until the ER1 bit clears before handling the error condition.
1627  **/
1628 static void
1629 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1630 {
1631         uint32_t old_host_status = phba->work_hs;
1632         struct lpfc_sli *psli = &phba->sli;
1633
1634         /* If the pci channel is offline, ignore possible errors,
1635          * since we cannot communicate with the pci card anyway.
1636          */
1637         if (pci_channel_offline(phba->pcidev)) {
1638                 spin_lock_irq(&phba->hbalock);
1639                 phba->hba_flag &= ~DEFER_ERATT;
1640                 spin_unlock_irq(&phba->hbalock);
1641                 return;
1642         }
1643
1644         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1645                         "0479 Deferred Adapter Hardware Error "
1646                         "Data: x%x x%x x%x\n",
1647                         phba->work_hs, phba->work_status[0],
1648                         phba->work_status[1]);
1649
1650         spin_lock_irq(&phba->hbalock);
1651         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1652         spin_unlock_irq(&phba->hbalock);
1653
1654
1655         /*
1656          * Firmware stops when it triggred erratt. That could cause the I/Os
1657          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1658          * SCSI layer retry it after re-establishing link.
1659          */
1660         lpfc_sli_abort_fcp_rings(phba);
1661
1662         /*
1663          * There was a firmware error. Take the hba offline and then
1664          * attempt to restart it.
1665          */
1666         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1667         lpfc_offline(phba);
1668
1669         /* Wait for the ER1 bit to clear.*/
1670         while (phba->work_hs & HS_FFER1) {
1671                 msleep(100);
1672                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1673                         phba->work_hs = UNPLUG_ERR ;
1674                         break;
1675                 }
1676                 /* If driver is unloading let the worker thread continue */
1677                 if (phba->pport->load_flag & FC_UNLOADING) {
1678                         phba->work_hs = 0;
1679                         break;
1680                 }
1681         }
1682
1683         /*
1684          * This is to ptrotect against a race condition in which
1685          * first write to the host attention register clear the
1686          * host status register.
1687          */
1688         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1689                 phba->work_hs = old_host_status & ~HS_FFER1;
1690
1691         spin_lock_irq(&phba->hbalock);
1692         phba->hba_flag &= ~DEFER_ERATT;
1693         spin_unlock_irq(&phba->hbalock);
1694         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1695         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1696 }
1697
1698 static void
1699 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1700 {
1701         struct lpfc_board_event_header board_event;
1702         struct Scsi_Host *shost;
1703
1704         board_event.event_type = FC_REG_BOARD_EVENT;
1705         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1706         shost = lpfc_shost_from_vport(phba->pport);
1707         fc_host_post_vendor_event(shost, fc_get_event_number(),
1708                                   sizeof(board_event),
1709                                   (char *) &board_event,
1710                                   LPFC_NL_VENDOR_ID);
1711 }
1712
1713 /**
1714  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1715  * @phba: pointer to lpfc hba data structure.
1716  *
1717  * This routine is invoked to handle the following HBA hardware error
1718  * conditions:
1719  * 1 - HBA error attention interrupt
1720  * 2 - DMA ring index out of range
1721  * 3 - Mailbox command came back as unknown
1722  **/
1723 static void
1724 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1725 {
1726         struct lpfc_vport *vport = phba->pport;
1727         struct lpfc_sli   *psli = &phba->sli;
1728         uint32_t event_data;
1729         unsigned long temperature;
1730         struct temp_event temp_event_data;
1731         struct Scsi_Host  *shost;
1732
1733         /* If the pci channel is offline, ignore possible errors,
1734          * since we cannot communicate with the pci card anyway.
1735          */
1736         if (pci_channel_offline(phba->pcidev)) {
1737                 spin_lock_irq(&phba->hbalock);
1738                 phba->hba_flag &= ~DEFER_ERATT;
1739                 spin_unlock_irq(&phba->hbalock);
1740                 return;
1741         }
1742
1743         /* If resets are disabled then leave the HBA alone and return */
1744         if (!phba->cfg_enable_hba_reset)
1745                 return;
1746
1747         /* Send an internal error event to mgmt application */
1748         lpfc_board_errevt_to_mgmt(phba);
1749
1750         if (phba->hba_flag & DEFER_ERATT)
1751                 lpfc_handle_deferred_eratt(phba);
1752
1753         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1754                 if (phba->work_hs & HS_FFER6)
1755                         /* Re-establishing Link */
1756                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1757                                         "1301 Re-establishing Link "
1758                                         "Data: x%x x%x x%x\n",
1759                                         phba->work_hs, phba->work_status[0],
1760                                         phba->work_status[1]);
1761                 if (phba->work_hs & HS_FFER8)
1762                         /* Device Zeroization */
1763                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1764                                         "2861 Host Authentication device "
1765                                         "zeroization Data:x%x x%x x%x\n",
1766                                         phba->work_hs, phba->work_status[0],
1767                                         phba->work_status[1]);
1768
1769                 spin_lock_irq(&phba->hbalock);
1770                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1771                 spin_unlock_irq(&phba->hbalock);
1772
1773                 /*
1774                 * Firmware stops when it triggled erratt with HS_FFER6.
1775                 * That could cause the I/Os dropped by the firmware.
1776                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1777                 * retry it after re-establishing link.
1778                 */
1779                 lpfc_sli_abort_fcp_rings(phba);
1780
1781                 /*
1782                  * There was a firmware error.  Take the hba offline and then
1783                  * attempt to restart it.
1784                  */
1785                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1786                 lpfc_offline(phba);
1787                 lpfc_sli_brdrestart(phba);
1788                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1789                         lpfc_unblock_mgmt_io(phba);
1790                         return;
1791                 }
1792                 lpfc_unblock_mgmt_io(phba);
1793         } else if (phba->work_hs & HS_CRIT_TEMP) {
1794                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1795                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1796                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1797                 temp_event_data.data = (uint32_t)temperature;
1798
1799                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1800                                 "0406 Adapter maximum temperature exceeded "
1801                                 "(%ld), taking this port offline "
1802                                 "Data: x%x x%x x%x\n",
1803                                 temperature, phba->work_hs,
1804                                 phba->work_status[0], phba->work_status[1]);
1805
1806                 shost = lpfc_shost_from_vport(phba->pport);
1807                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1808                                           sizeof(temp_event_data),
1809                                           (char *) &temp_event_data,
1810                                           SCSI_NL_VID_TYPE_PCI
1811                                           | PCI_VENDOR_ID_EMULEX);
1812
1813                 spin_lock_irq(&phba->hbalock);
1814                 phba->over_temp_state = HBA_OVER_TEMP;
1815                 spin_unlock_irq(&phba->hbalock);
1816                 lpfc_offline_eratt(phba);
1817
1818         } else {
1819                 /* The if clause above forces this code path when the status
1820                  * failure is a value other than FFER6. Do not call the offline
1821                  * twice. This is the adapter hardware error path.
1822                  */
1823                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1824                                 "0457 Adapter Hardware Error "
1825                                 "Data: x%x x%x x%x\n",
1826                                 phba->work_hs,
1827                                 phba->work_status[0], phba->work_status[1]);
1828
1829                 event_data = FC_REG_DUMP_EVENT;
1830                 shost = lpfc_shost_from_vport(vport);
1831                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1832                                 sizeof(event_data), (char *) &event_data,
1833                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1834
1835                 lpfc_offline_eratt(phba);
1836         }
1837         return;
1838 }
1839
1840 /**
1841  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1842  * @phba: pointer to lpfc hba data structure.
1843  * @mbx_action: flag for mailbox shutdown action.
1844  * @en_rn_msg: send reset/port recovery message.
1845  * This routine is invoked to perform an SLI4 port PCI function reset in
1846  * response to port status register polling attention. It waits for port
1847  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1848  * During this process, interrupt vectors are freed and later requested
1849  * for handling possible port resource change.
1850  **/
1851 static int
1852 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1853                             bool en_rn_msg)
1854 {
1855         int rc;
1856         uint32_t intr_mode;
1857         LPFC_MBOXQ_t *mboxq;
1858
1859         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1860             LPFC_SLI_INTF_IF_TYPE_2) {
1861                 /*
1862                  * On error status condition, driver need to wait for port
1863                  * ready before performing reset.
1864                  */
1865                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1866                 if (rc)
1867                         return rc;
1868         }
1869
1870         /* need reset: attempt for port recovery */
1871         if (en_rn_msg)
1872                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1873                                 "2887 Reset Needed: Attempting Port "
1874                                 "Recovery...\n");
1875
1876         /* If we are no wait, the HBA has been reset and is not
1877          * functional, thus we should clear
1878          * (LPFC_SLI_ACTIVE | LPFC_SLI_MBOX_ACTIVE) flags.
1879          */
1880         if (mbx_action == LPFC_MBX_NO_WAIT) {
1881                 spin_lock_irq(&phba->hbalock);
1882                 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
1883                 if (phba->sli.mbox_active) {
1884                         mboxq = phba->sli.mbox_active;
1885                         mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
1886                         __lpfc_mbox_cmpl_put(phba, mboxq);
1887                         phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
1888                         phba->sli.mbox_active = NULL;
1889                 }
1890                 spin_unlock_irq(&phba->hbalock);
1891         }
1892
1893         lpfc_offline_prep(phba, mbx_action);
1894         lpfc_sli_flush_io_rings(phba);
1895         lpfc_offline(phba);
1896         /* release interrupt for possible resource change */
1897         lpfc_sli4_disable_intr(phba);
1898         rc = lpfc_sli_brdrestart(phba);
1899         if (rc) {
1900                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1901                                 "6309 Failed to restart board\n");
1902                 return rc;
1903         }
1904         /* request and enable interrupt */
1905         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1906         if (intr_mode == LPFC_INTR_ERROR) {
1907                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1908                                 "3175 Failed to enable interrupt\n");
1909                 return -EIO;
1910         }
1911         phba->intr_mode = intr_mode;
1912         rc = lpfc_online(phba);
1913         if (rc == 0)
1914                 lpfc_unblock_mgmt_io(phba);
1915
1916         return rc;
1917 }
1918
1919 /**
1920  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1921  * @phba: pointer to lpfc hba data structure.
1922  *
1923  * This routine is invoked to handle the SLI4 HBA hardware error attention
1924  * conditions.
1925  **/
1926 static void
1927 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1928 {
1929         struct lpfc_vport *vport = phba->pport;
1930         uint32_t event_data;
1931         struct Scsi_Host *shost;
1932         uint32_t if_type;
1933         struct lpfc_register portstat_reg = {0};
1934         uint32_t reg_err1, reg_err2;
1935         uint32_t uerrlo_reg, uemasklo_reg;
1936         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1937         bool en_rn_msg = true;
1938         struct temp_event temp_event_data;
1939         struct lpfc_register portsmphr_reg;
1940         int rc, i;
1941
1942         /* If the pci channel is offline, ignore possible errors, since
1943          * we cannot communicate with the pci card anyway.
1944          */
1945         if (pci_channel_offline(phba->pcidev)) {
1946                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1947                                 "3166 pci channel is offline\n");
1948                 lpfc_sli4_offline_eratt(phba);
1949                 return;
1950         }
1951
1952         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1953         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1954         switch (if_type) {
1955         case LPFC_SLI_INTF_IF_TYPE_0:
1956                 pci_rd_rc1 = lpfc_readl(
1957                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1958                                 &uerrlo_reg);
1959                 pci_rd_rc2 = lpfc_readl(
1960                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1961                                 &uemasklo_reg);
1962                 /* consider PCI bus read error as pci_channel_offline */
1963                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1964                         return;
1965                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1966                         lpfc_sli4_offline_eratt(phba);
1967                         return;
1968                 }
1969                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1970                                 "7623 Checking UE recoverable");
1971
1972                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1973                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1974                                        &portsmphr_reg.word0))
1975                                 continue;
1976
1977                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1978                                                    &portsmphr_reg);
1979                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1980                             LPFC_PORT_SEM_UE_RECOVERABLE)
1981                                 break;
1982                         /*Sleep for 1Sec, before checking SEMAPHORE */
1983                         msleep(1000);
1984                 }
1985
1986                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1987                                 "4827 smphr_port_status x%x : Waited %dSec",
1988                                 smphr_port_status, i);
1989
1990                 /* Recoverable UE, reset the HBA device */
1991                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1992                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1993                         for (i = 0; i < 20; i++) {
1994                                 msleep(1000);
1995                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1996                                     &portsmphr_reg.word0) &&
1997                                     (LPFC_POST_STAGE_PORT_READY ==
1998                                      bf_get(lpfc_port_smphr_port_status,
1999                                      &portsmphr_reg))) {
2000                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
2001                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
2002                                         if (rc == 0)
2003                                                 return;
2004                                         lpfc_printf_log(phba, KERN_ERR,
2005                                                 LOG_TRACE_EVENT,
2006                                                 "4215 Failed to recover UE");
2007                                         break;
2008                                 }
2009                         }
2010                 }
2011                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2012                                 "7624 Firmware not ready: Failing UE recovery,"
2013                                 " waited %dSec", i);
2014                 phba->link_state = LPFC_HBA_ERROR;
2015                 break;
2016
2017         case LPFC_SLI_INTF_IF_TYPE_2:
2018         case LPFC_SLI_INTF_IF_TYPE_6:
2019                 pci_rd_rc1 = lpfc_readl(
2020                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
2021                                 &portstat_reg.word0);
2022                 /* consider PCI bus read error as pci_channel_offline */
2023                 if (pci_rd_rc1 == -EIO) {
2024                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2025                                 "3151 PCI bus read access failure: x%x\n",
2026                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
2027                         lpfc_sli4_offline_eratt(phba);
2028                         return;
2029                 }
2030                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
2031                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
2032                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
2033                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2034                                         "2889 Port Overtemperature event, "
2035                                         "taking port offline Data: x%x x%x\n",
2036                                         reg_err1, reg_err2);
2037
2038                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
2039                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
2040                         temp_event_data.event_code = LPFC_CRIT_TEMP;
2041                         temp_event_data.data = 0xFFFFFFFF;
2042
2043                         shost = lpfc_shost_from_vport(phba->pport);
2044                         fc_host_post_vendor_event(shost, fc_get_event_number(),
2045                                                   sizeof(temp_event_data),
2046                                                   (char *)&temp_event_data,
2047                                                   SCSI_NL_VID_TYPE_PCI
2048                                                   | PCI_VENDOR_ID_EMULEX);
2049
2050                         spin_lock_irq(&phba->hbalock);
2051                         phba->over_temp_state = HBA_OVER_TEMP;
2052                         spin_unlock_irq(&phba->hbalock);
2053                         lpfc_sli4_offline_eratt(phba);
2054                         return;
2055                 }
2056                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2057                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
2058                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2059                                         "3143 Port Down: Firmware Update "
2060                                         "Detected\n");
2061                         en_rn_msg = false;
2062                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2063                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2064                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2065                                         "3144 Port Down: Debug Dump\n");
2066                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2067                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
2068                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2069                                         "3145 Port Down: Provisioning\n");
2070
2071                 /* If resets are disabled then leave the HBA alone and return */
2072                 if (!phba->cfg_enable_hba_reset)
2073                         return;
2074
2075                 /* Check port status register for function reset */
2076                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
2077                                 en_rn_msg);
2078                 if (rc == 0) {
2079                         /* don't report event on forced debug dump */
2080                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2081                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2082                                 return;
2083                         else
2084                                 break;
2085                 }
2086                 /* fall through for not able to recover */
2087                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2088                                 "3152 Unrecoverable error\n");
2089                 phba->link_state = LPFC_HBA_ERROR;
2090                 break;
2091         case LPFC_SLI_INTF_IF_TYPE_1:
2092         default:
2093                 break;
2094         }
2095         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2096                         "3123 Report dump event to upper layer\n");
2097         /* Send an internal error event to mgmt application */
2098         lpfc_board_errevt_to_mgmt(phba);
2099
2100         event_data = FC_REG_DUMP_EVENT;
2101         shost = lpfc_shost_from_vport(vport);
2102         fc_host_post_vendor_event(shost, fc_get_event_number(),
2103                                   sizeof(event_data), (char *) &event_data,
2104                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
2105 }
2106
2107 /**
2108  * lpfc_handle_eratt - Wrapper func for handling hba error attention
2109  * @phba: pointer to lpfc HBA data structure.
2110  *
2111  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2112  * routine from the API jump table function pointer from the lpfc_hba struct.
2113  *
2114  * Return codes
2115  *   0 - success.
2116  *   Any other value - error.
2117  **/
2118 void
2119 lpfc_handle_eratt(struct lpfc_hba *phba)
2120 {
2121         (*phba->lpfc_handle_eratt)(phba);
2122 }
2123
2124 /**
2125  * lpfc_handle_latt - The HBA link event handler
2126  * @phba: pointer to lpfc hba data structure.
2127  *
2128  * This routine is invoked from the worker thread to handle a HBA host
2129  * attention link event. SLI3 only.
2130  **/
2131 void
2132 lpfc_handle_latt(struct lpfc_hba *phba)
2133 {
2134         struct lpfc_vport *vport = phba->pport;
2135         struct lpfc_sli   *psli = &phba->sli;
2136         LPFC_MBOXQ_t *pmb;
2137         volatile uint32_t control;
2138         struct lpfc_dmabuf *mp;
2139         int rc = 0;
2140
2141         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2142         if (!pmb) {
2143                 rc = 1;
2144                 goto lpfc_handle_latt_err_exit;
2145         }
2146
2147         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2148         if (!mp) {
2149                 rc = 2;
2150                 goto lpfc_handle_latt_free_pmb;
2151         }
2152
2153         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2154         if (!mp->virt) {
2155                 rc = 3;
2156                 goto lpfc_handle_latt_free_mp;
2157         }
2158
2159         /* Cleanup any outstanding ELS commands */
2160         lpfc_els_flush_all_cmd(phba);
2161
2162         psli->slistat.link_event++;
2163         lpfc_read_topology(phba, pmb, mp);
2164         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2165         pmb->vport = vport;
2166         /* Block ELS IOCBs until we have processed this mbox command */
2167         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2168         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2169         if (rc == MBX_NOT_FINISHED) {
2170                 rc = 4;
2171                 goto lpfc_handle_latt_free_mbuf;
2172         }
2173
2174         /* Clear Link Attention in HA REG */
2175         spin_lock_irq(&phba->hbalock);
2176         writel(HA_LATT, phba->HAregaddr);
2177         readl(phba->HAregaddr); /* flush */
2178         spin_unlock_irq(&phba->hbalock);
2179
2180         return;
2181
2182 lpfc_handle_latt_free_mbuf:
2183         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2184         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2185 lpfc_handle_latt_free_mp:
2186         kfree(mp);
2187 lpfc_handle_latt_free_pmb:
2188         mempool_free(pmb, phba->mbox_mem_pool);
2189 lpfc_handle_latt_err_exit:
2190         /* Enable Link attention interrupts */
2191         spin_lock_irq(&phba->hbalock);
2192         psli->sli_flag |= LPFC_PROCESS_LA;
2193         control = readl(phba->HCregaddr);
2194         control |= HC_LAINT_ENA;
2195         writel(control, phba->HCregaddr);
2196         readl(phba->HCregaddr); /* flush */
2197
2198         /* Clear Link Attention in HA REG */
2199         writel(HA_LATT, phba->HAregaddr);
2200         readl(phba->HAregaddr); /* flush */
2201         spin_unlock_irq(&phba->hbalock);
2202         lpfc_linkdown(phba);
2203         phba->link_state = LPFC_HBA_ERROR;
2204
2205         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2206                         "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2207
2208         return;
2209 }
2210
2211 /**
2212  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2213  * @phba: pointer to lpfc hba data structure.
2214  * @vpd: pointer to the vital product data.
2215  * @len: length of the vital product data in bytes.
2216  *
2217  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2218  * an array of characters. In this routine, the ModelName, ProgramType, and
2219  * ModelDesc, etc. fields of the phba data structure will be populated.
2220  *
2221  * Return codes
2222  *   0 - pointer to the VPD passed in is NULL
2223  *   1 - success
2224  **/
2225 int
2226 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2227 {
2228         uint8_t lenlo, lenhi;
2229         int Length;
2230         int i, j;
2231         int finished = 0;
2232         int index = 0;
2233
2234         if (!vpd)
2235                 return 0;
2236
2237         /* Vital Product */
2238         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2239                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2240                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2241                         (uint32_t) vpd[3]);
2242         while (!finished && (index < (len - 4))) {
2243                 switch (vpd[index]) {
2244                 case 0x82:
2245                 case 0x91:
2246                         index += 1;
2247                         lenlo = vpd[index];
2248                         index += 1;
2249                         lenhi = vpd[index];
2250                         index += 1;
2251                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2252                         index += i;
2253                         break;
2254                 case 0x90:
2255                         index += 1;
2256                         lenlo = vpd[index];
2257                         index += 1;
2258                         lenhi = vpd[index];
2259                         index += 1;
2260                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2261                         if (Length > len - index)
2262                                 Length = len - index;
2263                         while (Length > 0) {
2264                         /* Look for Serial Number */
2265                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2266                                 index += 2;
2267                                 i = vpd[index];
2268                                 index += 1;
2269                                 j = 0;
2270                                 Length -= (3+i);
2271                                 while(i--) {
2272                                         phba->SerialNumber[j++] = vpd[index++];
2273                                         if (j == 31)
2274                                                 break;
2275                                 }
2276                                 phba->SerialNumber[j] = 0;
2277                                 continue;
2278                         }
2279                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2280                                 phba->vpd_flag |= VPD_MODEL_DESC;
2281                                 index += 2;
2282                                 i = vpd[index];
2283                                 index += 1;
2284                                 j = 0;
2285                                 Length -= (3+i);
2286                                 while(i--) {
2287                                         phba->ModelDesc[j++] = vpd[index++];
2288                                         if (j == 255)
2289                                                 break;
2290                                 }
2291                                 phba->ModelDesc[j] = 0;
2292                                 continue;
2293                         }
2294                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2295                                 phba->vpd_flag |= VPD_MODEL_NAME;
2296                                 index += 2;
2297                                 i = vpd[index];
2298                                 index += 1;
2299                                 j = 0;
2300                                 Length -= (3+i);
2301                                 while(i--) {
2302                                         phba->ModelName[j++] = vpd[index++];
2303                                         if (j == 79)
2304                                                 break;
2305                                 }
2306                                 phba->ModelName[j] = 0;
2307                                 continue;
2308                         }
2309                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2310                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2311                                 index += 2;
2312                                 i = vpd[index];
2313                                 index += 1;
2314                                 j = 0;
2315                                 Length -= (3+i);
2316                                 while(i--) {
2317                                         phba->ProgramType[j++] = vpd[index++];
2318                                         if (j == 255)
2319                                                 break;
2320                                 }
2321                                 phba->ProgramType[j] = 0;
2322                                 continue;
2323                         }
2324                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2325                                 phba->vpd_flag |= VPD_PORT;
2326                                 index += 2;
2327                                 i = vpd[index];
2328                                 index += 1;
2329                                 j = 0;
2330                                 Length -= (3+i);
2331                                 while(i--) {
2332                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2333                                             (phba->sli4_hba.pport_name_sta ==
2334                                              LPFC_SLI4_PPNAME_GET)) {
2335                                                 j++;
2336                                                 index++;
2337                                         } else
2338                                                 phba->Port[j++] = vpd[index++];
2339                                         if (j == 19)
2340                                                 break;
2341                                 }
2342                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2343                                     (phba->sli4_hba.pport_name_sta ==
2344                                      LPFC_SLI4_PPNAME_NON))
2345                                         phba->Port[j] = 0;
2346                                 continue;
2347                         }
2348                         else {
2349                                 index += 2;
2350                                 i = vpd[index];
2351                                 index += 1;
2352                                 index += i;
2353                                 Length -= (3 + i);
2354                         }
2355                 }
2356                 finished = 0;
2357                 break;
2358                 case 0x78:
2359                         finished = 1;
2360                         break;
2361                 default:
2362                         index ++;
2363                         break;
2364                 }
2365         }
2366
2367         return(1);
2368 }
2369
2370 /**
2371  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2372  * @phba: pointer to lpfc hba data structure.
2373  * @mdp: pointer to the data structure to hold the derived model name.
2374  * @descp: pointer to the data structure to hold the derived description.
2375  *
2376  * This routine retrieves HBA's description based on its registered PCI device
2377  * ID. The @descp passed into this function points to an array of 256 chars. It
2378  * shall be returned with the model name, maximum speed, and the host bus type.
2379  * The @mdp passed into this function points to an array of 80 chars. When the
2380  * function returns, the @mdp will be filled with the model name.
2381  **/
2382 static void
2383 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2384 {
2385         lpfc_vpd_t *vp;
2386         uint16_t dev_id = phba->pcidev->device;
2387         int max_speed;
2388         int GE = 0;
2389         int oneConnect = 0; /* default is not a oneConnect */
2390         struct {
2391                 char *name;
2392                 char *bus;
2393                 char *function;
2394         } m = {"<Unknown>", "", ""};
2395
2396         if (mdp && mdp[0] != '\0'
2397                 && descp && descp[0] != '\0')
2398                 return;
2399
2400         if (phba->lmt & LMT_64Gb)
2401                 max_speed = 64;
2402         else if (phba->lmt & LMT_32Gb)
2403                 max_speed = 32;
2404         else if (phba->lmt & LMT_16Gb)
2405                 max_speed = 16;
2406         else if (phba->lmt & LMT_10Gb)
2407                 max_speed = 10;
2408         else if (phba->lmt & LMT_8Gb)
2409                 max_speed = 8;
2410         else if (phba->lmt & LMT_4Gb)
2411                 max_speed = 4;
2412         else if (phba->lmt & LMT_2Gb)
2413                 max_speed = 2;
2414         else if (phba->lmt & LMT_1Gb)
2415                 max_speed = 1;
2416         else
2417                 max_speed = 0;
2418
2419         vp = &phba->vpd;
2420
2421         switch (dev_id) {
2422         case PCI_DEVICE_ID_FIREFLY:
2423                 m = (typeof(m)){"LP6000", "PCI",
2424                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2425                 break;
2426         case PCI_DEVICE_ID_SUPERFLY:
2427                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2428                         m = (typeof(m)){"LP7000", "PCI", ""};
2429                 else
2430                         m = (typeof(m)){"LP7000E", "PCI", ""};
2431                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2432                 break;
2433         case PCI_DEVICE_ID_DRAGONFLY:
2434                 m = (typeof(m)){"LP8000", "PCI",
2435                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2436                 break;
2437         case PCI_DEVICE_ID_CENTAUR:
2438                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2439                         m = (typeof(m)){"LP9002", "PCI", ""};
2440                 else
2441                         m = (typeof(m)){"LP9000", "PCI", ""};
2442                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2443                 break;
2444         case PCI_DEVICE_ID_RFLY:
2445                 m = (typeof(m)){"LP952", "PCI",
2446                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2447                 break;
2448         case PCI_DEVICE_ID_PEGASUS:
2449                 m = (typeof(m)){"LP9802", "PCI-X",
2450                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2451                 break;
2452         case PCI_DEVICE_ID_THOR:
2453                 m = (typeof(m)){"LP10000", "PCI-X",
2454                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2455                 break;
2456         case PCI_DEVICE_ID_VIPER:
2457                 m = (typeof(m)){"LPX1000",  "PCI-X",
2458                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2459                 break;
2460         case PCI_DEVICE_ID_PFLY:
2461                 m = (typeof(m)){"LP982", "PCI-X",
2462                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2463                 break;
2464         case PCI_DEVICE_ID_TFLY:
2465                 m = (typeof(m)){"LP1050", "PCI-X",
2466                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2467                 break;
2468         case PCI_DEVICE_ID_HELIOS:
2469                 m = (typeof(m)){"LP11000", "PCI-X2",
2470                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2471                 break;
2472         case PCI_DEVICE_ID_HELIOS_SCSP:
2473                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2474                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2475                 break;
2476         case PCI_DEVICE_ID_HELIOS_DCSP:
2477                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2478                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2479                 break;
2480         case PCI_DEVICE_ID_NEPTUNE:
2481                 m = (typeof(m)){"LPe1000", "PCIe",
2482                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2483                 break;
2484         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2485                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2486                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2487                 break;
2488         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2489                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2490                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2491                 break;
2492         case PCI_DEVICE_ID_BMID:
2493                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2494                 break;
2495         case PCI_DEVICE_ID_BSMB:
2496                 m = (typeof(m)){"LP111", "PCI-X2",
2497                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2498                 break;
2499         case PCI_DEVICE_ID_ZEPHYR:
2500                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2501                 break;
2502         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2503                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2504                 break;
2505         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2506                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2507                 GE = 1;
2508                 break;
2509         case PCI_DEVICE_ID_ZMID:
2510                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2511                 break;
2512         case PCI_DEVICE_ID_ZSMB:
2513                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2514                 break;
2515         case PCI_DEVICE_ID_LP101:
2516                 m = (typeof(m)){"LP101", "PCI-X",
2517                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2518                 break;
2519         case PCI_DEVICE_ID_LP10000S:
2520                 m = (typeof(m)){"LP10000-S", "PCI",
2521                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2522                 break;
2523         case PCI_DEVICE_ID_LP11000S:
2524                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2525                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2526                 break;
2527         case PCI_DEVICE_ID_LPE11000S:
2528                 m = (typeof(m)){"LPe11000-S", "PCIe",
2529                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2530                 break;
2531         case PCI_DEVICE_ID_SAT:
2532                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2533                 break;
2534         case PCI_DEVICE_ID_SAT_MID:
2535                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2536                 break;
2537         case PCI_DEVICE_ID_SAT_SMB:
2538                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2539                 break;
2540         case PCI_DEVICE_ID_SAT_DCSP:
2541                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2542                 break;
2543         case PCI_DEVICE_ID_SAT_SCSP:
2544                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2545                 break;
2546         case PCI_DEVICE_ID_SAT_S:
2547                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2548                 break;
2549         case PCI_DEVICE_ID_HORNET:
2550                 m = (typeof(m)){"LP21000", "PCIe",
2551                                 "Obsolete, Unsupported FCoE Adapter"};
2552                 GE = 1;
2553                 break;
2554         case PCI_DEVICE_ID_PROTEUS_VF:
2555                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2556                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2557                 break;
2558         case PCI_DEVICE_ID_PROTEUS_PF:
2559                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2560                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2561                 break;
2562         case PCI_DEVICE_ID_PROTEUS_S:
2563                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2564                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2565                 break;
2566         case PCI_DEVICE_ID_TIGERSHARK:
2567                 oneConnect = 1;
2568                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2569                 break;
2570         case PCI_DEVICE_ID_TOMCAT:
2571                 oneConnect = 1;
2572                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2573                 break;
2574         case PCI_DEVICE_ID_FALCON:
2575                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2576                                 "EmulexSecure Fibre"};
2577                 break;
2578         case PCI_DEVICE_ID_BALIUS:
2579                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2580                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2581                 break;
2582         case PCI_DEVICE_ID_LANCER_FC:
2583                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2584                 break;
2585         case PCI_DEVICE_ID_LANCER_FC_VF:
2586                 m = (typeof(m)){"LPe16000", "PCIe",
2587                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2588                 break;
2589         case PCI_DEVICE_ID_LANCER_FCOE:
2590                 oneConnect = 1;
2591                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2592                 break;
2593         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2594                 oneConnect = 1;
2595                 m = (typeof(m)){"OCe15100", "PCIe",
2596                                 "Obsolete, Unsupported FCoE"};
2597                 break;
2598         case PCI_DEVICE_ID_LANCER_G6_FC:
2599                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2600                 break;
2601         case PCI_DEVICE_ID_LANCER_G7_FC:
2602                 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2603                 break;
2604         case PCI_DEVICE_ID_LANCER_G7P_FC:
2605                 m = (typeof(m)){"LPe38000", "PCIe", "Fibre Channel Adapter"};
2606                 break;
2607         case PCI_DEVICE_ID_SKYHAWK:
2608         case PCI_DEVICE_ID_SKYHAWK_VF:
2609                 oneConnect = 1;
2610                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2611                 break;
2612         default:
2613                 m = (typeof(m)){"Unknown", "", ""};
2614                 break;
2615         }
2616
2617         if (mdp && mdp[0] == '\0')
2618                 snprintf(mdp, 79,"%s", m.name);
2619         /*
2620          * oneConnect hba requires special processing, they are all initiators
2621          * and we put the port number on the end
2622          */
2623         if (descp && descp[0] == '\0') {
2624                 if (oneConnect)
2625                         snprintf(descp, 255,
2626                                 "Emulex OneConnect %s, %s Initiator %s",
2627                                 m.name, m.function,
2628                                 phba->Port);
2629                 else if (max_speed == 0)
2630                         snprintf(descp, 255,
2631                                 "Emulex %s %s %s",
2632                                 m.name, m.bus, m.function);
2633                 else
2634                         snprintf(descp, 255,
2635                                 "Emulex %s %d%s %s %s",
2636                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2637                                 m.bus, m.function);
2638         }
2639 }
2640
2641 /**
2642  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2643  * @phba: pointer to lpfc hba data structure.
2644  * @pring: pointer to a IOCB ring.
2645  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2646  *
2647  * This routine posts a given number of IOCBs with the associated DMA buffer
2648  * descriptors specified by the cnt argument to the given IOCB ring.
2649  *
2650  * Return codes
2651  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2652  **/
2653 int
2654 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2655 {
2656         IOCB_t *icmd;
2657         struct lpfc_iocbq *iocb;
2658         struct lpfc_dmabuf *mp1, *mp2;
2659
2660         cnt += pring->missbufcnt;
2661
2662         /* While there are buffers to post */
2663         while (cnt > 0) {
2664                 /* Allocate buffer for  command iocb */
2665                 iocb = lpfc_sli_get_iocbq(phba);
2666                 if (iocb == NULL) {
2667                         pring->missbufcnt = cnt;
2668                         return cnt;
2669                 }
2670                 icmd = &iocb->iocb;
2671
2672                 /* 2 buffers can be posted per command */
2673                 /* Allocate buffer to post */
2674                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2675                 if (mp1)
2676                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2677                 if (!mp1 || !mp1->virt) {
2678                         kfree(mp1);
2679                         lpfc_sli_release_iocbq(phba, iocb);
2680                         pring->missbufcnt = cnt;
2681                         return cnt;
2682                 }
2683
2684                 INIT_LIST_HEAD(&mp1->list);
2685                 /* Allocate buffer to post */
2686                 if (cnt > 1) {
2687                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2688                         if (mp2)
2689                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2690                                                             &mp2->phys);
2691                         if (!mp2 || !mp2->virt) {
2692                                 kfree(mp2);
2693                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2694                                 kfree(mp1);
2695                                 lpfc_sli_release_iocbq(phba, iocb);
2696                                 pring->missbufcnt = cnt;
2697                                 return cnt;
2698                         }
2699
2700                         INIT_LIST_HEAD(&mp2->list);
2701                 } else {
2702                         mp2 = NULL;
2703                 }
2704
2705                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2706                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2707                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2708                 icmd->ulpBdeCount = 1;
2709                 cnt--;
2710                 if (mp2) {
2711                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2712                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2713                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2714                         cnt--;
2715                         icmd->ulpBdeCount = 2;
2716                 }
2717
2718                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2719                 icmd->ulpLe = 1;
2720
2721                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2722                     IOCB_ERROR) {
2723                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2724                         kfree(mp1);
2725                         cnt++;
2726                         if (mp2) {
2727                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2728                                 kfree(mp2);
2729                                 cnt++;
2730                         }
2731                         lpfc_sli_release_iocbq(phba, iocb);
2732                         pring->missbufcnt = cnt;
2733                         return cnt;
2734                 }
2735                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2736                 if (mp2)
2737                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2738         }
2739         pring->missbufcnt = 0;
2740         return 0;
2741 }
2742
2743 /**
2744  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2745  * @phba: pointer to lpfc hba data structure.
2746  *
2747  * This routine posts initial receive IOCB buffers to the ELS ring. The
2748  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2749  * set to 64 IOCBs. SLI3 only.
2750  *
2751  * Return codes
2752  *   0 - success (currently always success)
2753  **/
2754 static int
2755 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2756 {
2757         struct lpfc_sli *psli = &phba->sli;
2758
2759         /* Ring 0, ELS / CT buffers */
2760         lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2761         /* Ring 2 - FCP no buffers needed */
2762
2763         return 0;
2764 }
2765
2766 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2767
2768 /**
2769  * lpfc_sha_init - Set up initial array of hash table entries
2770  * @HashResultPointer: pointer to an array as hash table.
2771  *
2772  * This routine sets up the initial values to the array of hash table entries
2773  * for the LC HBAs.
2774  **/
2775 static void
2776 lpfc_sha_init(uint32_t * HashResultPointer)
2777 {
2778         HashResultPointer[0] = 0x67452301;
2779         HashResultPointer[1] = 0xEFCDAB89;
2780         HashResultPointer[2] = 0x98BADCFE;
2781         HashResultPointer[3] = 0x10325476;
2782         HashResultPointer[4] = 0xC3D2E1F0;
2783 }
2784
2785 /**
2786  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2787  * @HashResultPointer: pointer to an initial/result hash table.
2788  * @HashWorkingPointer: pointer to an working hash table.
2789  *
2790  * This routine iterates an initial hash table pointed by @HashResultPointer
2791  * with the values from the working hash table pointeed by @HashWorkingPointer.
2792  * The results are putting back to the initial hash table, returned through
2793  * the @HashResultPointer as the result hash table.
2794  **/
2795 static void
2796 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2797 {
2798         int t;
2799         uint32_t TEMP;
2800         uint32_t A, B, C, D, E;
2801         t = 16;
2802         do {
2803                 HashWorkingPointer[t] =
2804                     S(1,
2805                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2806                                                                      8] ^
2807                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2808         } while (++t <= 79);
2809         t = 0;
2810         A = HashResultPointer[0];
2811         B = HashResultPointer[1];
2812         C = HashResultPointer[2];
2813         D = HashResultPointer[3];
2814         E = HashResultPointer[4];
2815
2816         do {
2817                 if (t < 20) {
2818                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2819                 } else if (t < 40) {
2820                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2821                 } else if (t < 60) {
2822                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2823                 } else {
2824                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2825                 }
2826                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2827                 E = D;
2828                 D = C;
2829                 C = S(30, B);
2830                 B = A;
2831                 A = TEMP;
2832         } while (++t <= 79);
2833
2834         HashResultPointer[0] += A;
2835         HashResultPointer[1] += B;
2836         HashResultPointer[2] += C;
2837         HashResultPointer[3] += D;
2838         HashResultPointer[4] += E;
2839
2840 }
2841
2842 /**
2843  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2844  * @RandomChallenge: pointer to the entry of host challenge random number array.
2845  * @HashWorking: pointer to the entry of the working hash array.
2846  *
2847  * This routine calculates the working hash array referred by @HashWorking
2848  * from the challenge random numbers associated with the host, referred by
2849  * @RandomChallenge. The result is put into the entry of the working hash
2850  * array and returned by reference through @HashWorking.
2851  **/
2852 static void
2853 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2854 {
2855         *HashWorking = (*RandomChallenge ^ *HashWorking);
2856 }
2857
2858 /**
2859  * lpfc_hba_init - Perform special handling for LC HBA initialization
2860  * @phba: pointer to lpfc hba data structure.
2861  * @hbainit: pointer to an array of unsigned 32-bit integers.
2862  *
2863  * This routine performs the special handling for LC HBA initialization.
2864  **/
2865 void
2866 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2867 {
2868         int t;
2869         uint32_t *HashWorking;
2870         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2871
2872         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2873         if (!HashWorking)
2874                 return;
2875
2876         HashWorking[0] = HashWorking[78] = *pwwnn++;
2877         HashWorking[1] = HashWorking[79] = *pwwnn;
2878
2879         for (t = 0; t < 7; t++)
2880                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2881
2882         lpfc_sha_init(hbainit);
2883         lpfc_sha_iterate(hbainit, HashWorking);
2884         kfree(HashWorking);
2885 }
2886
2887 /**
2888  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2889  * @vport: pointer to a virtual N_Port data structure.
2890  *
2891  * This routine performs the necessary cleanups before deleting the @vport.
2892  * It invokes the discovery state machine to perform necessary state
2893  * transitions and to release the ndlps associated with the @vport. Note,
2894  * the physical port is treated as @vport 0.
2895  **/
2896 void
2897 lpfc_cleanup(struct lpfc_vport *vport)
2898 {
2899         struct lpfc_hba   *phba = vport->phba;
2900         struct lpfc_nodelist *ndlp, *next_ndlp;
2901         int i = 0;
2902
2903         if (phba->link_state > LPFC_LINK_DOWN)
2904                 lpfc_port_link_failure(vport);
2905
2906         /* Clean up VMID resources */
2907         if (lpfc_is_vmid_enabled(phba))
2908                 lpfc_vmid_vport_cleanup(vport);
2909
2910         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2911                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2912                     ndlp->nlp_DID == Fabric_DID) {
2913                         /* Just free up ndlp with Fabric_DID for vports */
2914                         lpfc_nlp_put(ndlp);
2915                         continue;
2916                 }
2917
2918                 if (ndlp->nlp_DID == Fabric_Cntl_DID &&
2919                     ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2920                         lpfc_nlp_put(ndlp);
2921                         continue;
2922                 }
2923
2924                 /* Fabric Ports not in UNMAPPED state are cleaned up in the
2925                  * DEVICE_RM event.
2926                  */
2927                 if (ndlp->nlp_type & NLP_FABRIC &&
2928                     ndlp->nlp_state == NLP_STE_UNMAPPED_NODE)
2929                         lpfc_disc_state_machine(vport, ndlp, NULL,
2930                                         NLP_EVT_DEVICE_RECOVERY);
2931
2932                 if (!(ndlp->fc4_xpt_flags & (NVME_XPT_REGD|SCSI_XPT_REGD)))
2933                         lpfc_disc_state_machine(vport, ndlp, NULL,
2934                                         NLP_EVT_DEVICE_RM);
2935         }
2936
2937         /* At this point, ALL ndlp's should be gone
2938          * because of the previous NLP_EVT_DEVICE_RM.
2939          * Lets wait for this to happen, if needed.
2940          */
2941         while (!list_empty(&vport->fc_nodes)) {
2942                 if (i++ > 3000) {
2943                         lpfc_printf_vlog(vport, KERN_ERR,
2944                                          LOG_TRACE_EVENT,
2945                                 "0233 Nodelist not empty\n");
2946                         list_for_each_entry_safe(ndlp, next_ndlp,
2947                                                 &vport->fc_nodes, nlp_listp) {
2948                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2949                                                  LOG_TRACE_EVENT,
2950                                                  "0282 did:x%x ndlp:x%px "
2951                                                  "refcnt:%d xflags x%x nflag x%x\n",
2952                                                  ndlp->nlp_DID, (void *)ndlp,
2953                                                  kref_read(&ndlp->kref),
2954                                                  ndlp->fc4_xpt_flags,
2955                                                  ndlp->nlp_flag);
2956                         }
2957                         break;
2958                 }
2959
2960                 /* Wait for any activity on ndlps to settle */
2961                 msleep(10);
2962         }
2963         lpfc_cleanup_vports_rrqs(vport, NULL);
2964 }
2965
2966 /**
2967  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2968  * @vport: pointer to a virtual N_Port data structure.
2969  *
2970  * This routine stops all the timers associated with a @vport. This function
2971  * is invoked before disabling or deleting a @vport. Note that the physical
2972  * port is treated as @vport 0.
2973  **/
2974 void
2975 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2976 {
2977         del_timer_sync(&vport->els_tmofunc);
2978         del_timer_sync(&vport->delayed_disc_tmo);
2979         lpfc_can_disctmo(vport);
2980         return;
2981 }
2982
2983 /**
2984  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2985  * @phba: pointer to lpfc hba data structure.
2986  *
2987  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2988  * caller of this routine should already hold the host lock.
2989  **/
2990 void
2991 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2992 {
2993         /* Clear pending FCF rediscovery wait flag */
2994         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2995
2996         /* Now, try to stop the timer */
2997         del_timer(&phba->fcf.redisc_wait);
2998 }
2999
3000 /**
3001  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
3002  * @phba: pointer to lpfc hba data structure.
3003  *
3004  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
3005  * checks whether the FCF rediscovery wait timer is pending with the host
3006  * lock held before proceeding with disabling the timer and clearing the
3007  * wait timer pendig flag.
3008  **/
3009 void
3010 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
3011 {
3012         spin_lock_irq(&phba->hbalock);
3013         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3014                 /* FCF rediscovery timer already fired or stopped */
3015                 spin_unlock_irq(&phba->hbalock);
3016                 return;
3017         }
3018         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3019         /* Clear failover in progress flags */
3020         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
3021         spin_unlock_irq(&phba->hbalock);
3022 }
3023
3024 /**
3025  * lpfc_cmf_stop - Stop CMF processing
3026  * @phba: pointer to lpfc hba data structure.
3027  *
3028  * This is called when the link goes down or if CMF mode is turned OFF.
3029  * It is also called when going offline or unloaded just before the
3030  * congestion info buffer is unregistered.
3031  **/
3032 void
3033 lpfc_cmf_stop(struct lpfc_hba *phba)
3034 {
3035         int cpu;
3036         struct lpfc_cgn_stat *cgs;
3037
3038         /* We only do something if CMF is enabled */
3039         if (!phba->sli4_hba.pc_sli4_params.cmf)
3040                 return;
3041
3042         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3043                         "6221 Stop CMF / Cancel Timer\n");
3044
3045         /* Cancel the CMF timer */
3046         hrtimer_cancel(&phba->cmf_timer);
3047
3048         /* Zero CMF counters */
3049         atomic_set(&phba->cmf_busy, 0);
3050         for_each_present_cpu(cpu) {
3051                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
3052                 atomic64_set(&cgs->total_bytes, 0);
3053                 atomic64_set(&cgs->rcv_bytes, 0);
3054                 atomic_set(&cgs->rx_io_cnt, 0);
3055                 atomic64_set(&cgs->rx_latency, 0);
3056         }
3057         atomic_set(&phba->cmf_bw_wait, 0);
3058
3059         /* Resume any blocked IO - Queue unblock on workqueue */
3060         queue_work(phba->wq, &phba->unblock_request_work);
3061 }
3062
3063 static inline uint64_t
3064 lpfc_get_max_line_rate(struct lpfc_hba *phba)
3065 {
3066         uint64_t rate = lpfc_sli_port_speed_get(phba);
3067
3068         return ((((unsigned long)rate) * 1024 * 1024) / 10);
3069 }
3070
3071 void
3072 lpfc_cmf_signal_init(struct lpfc_hba *phba)
3073 {
3074         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3075                         "6223 Signal CMF init\n");
3076
3077         /* Use the new fc_linkspeed to recalculate */
3078         phba->cmf_interval_rate = LPFC_CMF_INTERVAL;
3079         phba->cmf_max_line_rate = lpfc_get_max_line_rate(phba);
3080         phba->cmf_link_byte_count = div_u64(phba->cmf_max_line_rate *
3081                                             phba->cmf_interval_rate, 1000);
3082         phba->cmf_max_bytes_per_interval = phba->cmf_link_byte_count;
3083
3084         /* This is a signal to firmware to sync up CMF BW with link speed */
3085         lpfc_issue_cmf_sync_wqe(phba, 0, 0);
3086 }
3087
3088 /**
3089  * lpfc_cmf_start - Start CMF processing
3090  * @phba: pointer to lpfc hba data structure.
3091  *
3092  * This is called when the link comes up or if CMF mode is turned OFF
3093  * to Monitor or Managed.
3094  **/
3095 void
3096 lpfc_cmf_start(struct lpfc_hba *phba)
3097 {
3098         struct lpfc_cgn_stat *cgs;
3099         int cpu;
3100
3101         /* We only do something if CMF is enabled */
3102         if (!phba->sli4_hba.pc_sli4_params.cmf ||
3103             phba->cmf_active_mode == LPFC_CFG_OFF)
3104                 return;
3105
3106         /* Reinitialize congestion buffer info */
3107         lpfc_init_congestion_buf(phba);
3108
3109         atomic_set(&phba->cgn_fabric_warn_cnt, 0);
3110         atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
3111         atomic_set(&phba->cgn_sync_alarm_cnt, 0);
3112         atomic_set(&phba->cgn_sync_warn_cnt, 0);
3113
3114         atomic_set(&phba->cmf_busy, 0);
3115         for_each_present_cpu(cpu) {
3116                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
3117                 atomic64_set(&cgs->total_bytes, 0);
3118                 atomic64_set(&cgs->rcv_bytes, 0);
3119                 atomic_set(&cgs->rx_io_cnt, 0);
3120                 atomic64_set(&cgs->rx_latency, 0);
3121         }
3122         phba->cmf_latency.tv_sec = 0;
3123         phba->cmf_latency.tv_nsec = 0;
3124
3125         lpfc_cmf_signal_init(phba);
3126
3127         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3128                         "6222 Start CMF / Timer\n");
3129
3130         phba->cmf_timer_cnt = 0;
3131         hrtimer_start(&phba->cmf_timer,
3132                       ktime_set(0, LPFC_CMF_INTERVAL * 1000000),
3133                       HRTIMER_MODE_REL);
3134         /* Setup for latency check in IO cmpl routines */
3135         ktime_get_real_ts64(&phba->cmf_latency);
3136
3137         atomic_set(&phba->cmf_bw_wait, 0);
3138         atomic_set(&phba->cmf_stop_io, 0);
3139 }
3140
3141 /**
3142  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
3143  * @phba: pointer to lpfc hba data structure.
3144  *
3145  * This routine stops all the timers associated with a HBA. This function is
3146  * invoked before either putting a HBA offline or unloading the driver.
3147  **/
3148 void
3149 lpfc_stop_hba_timers(struct lpfc_hba *phba)
3150 {
3151         if (phba->pport)
3152                 lpfc_stop_vport_timers(phba->pport);
3153         cancel_delayed_work_sync(&phba->eq_delay_work);
3154         cancel_delayed_work_sync(&phba->idle_stat_delay_work);
3155         del_timer_sync(&phba->sli.mbox_tmo);
3156         del_timer_sync(&phba->fabric_block_timer);
3157         del_timer_sync(&phba->eratt_poll);
3158         del_timer_sync(&phba->hb_tmofunc);
3159         if (phba->sli_rev == LPFC_SLI_REV4) {
3160                 del_timer_sync(&phba->rrq_tmr);
3161                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
3162         }
3163         phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
3164
3165         switch (phba->pci_dev_grp) {
3166         case LPFC_PCI_DEV_LP:
3167                 /* Stop any LightPulse device specific driver timers */
3168                 del_timer_sync(&phba->fcp_poll_timer);
3169                 break;
3170         case LPFC_PCI_DEV_OC:
3171                 /* Stop any OneConnect device specific driver timers */
3172                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3173                 break;
3174         default:
3175                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3176                                 "0297 Invalid device group (x%x)\n",
3177                                 phba->pci_dev_grp);
3178                 break;
3179         }
3180         return;
3181 }
3182
3183 /**
3184  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
3185  * @phba: pointer to lpfc hba data structure.
3186  * @mbx_action: flag for mailbox no wait action.
3187  *
3188  * This routine marks a HBA's management interface as blocked. Once the HBA's
3189  * management interface is marked as blocked, all the user space access to
3190  * the HBA, whether they are from sysfs interface or libdfc interface will
3191  * all be blocked. The HBA is set to block the management interface when the
3192  * driver prepares the HBA interface for online or offline.
3193  **/
3194 static void
3195 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
3196 {
3197         unsigned long iflag;
3198         uint8_t actcmd = MBX_HEARTBEAT;
3199         unsigned long timeout;
3200
3201         spin_lock_irqsave(&phba->hbalock, iflag);
3202         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
3203         spin_unlock_irqrestore(&phba->hbalock, iflag);
3204         if (mbx_action == LPFC_MBX_NO_WAIT)
3205                 return;
3206         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
3207         spin_lock_irqsave(&phba->hbalock, iflag);
3208         if (phba->sli.mbox_active) {
3209                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
3210                 /* Determine how long we might wait for the active mailbox
3211                  * command to be gracefully completed by firmware.
3212                  */
3213                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
3214                                 phba->sli.mbox_active) * 1000) + jiffies;
3215         }
3216         spin_unlock_irqrestore(&phba->hbalock, iflag);
3217
3218         /* Wait for the outstnading mailbox command to complete */
3219         while (phba->sli.mbox_active) {
3220                 /* Check active mailbox complete status every 2ms */
3221                 msleep(2);
3222                 if (time_after(jiffies, timeout)) {
3223                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3224                                         "2813 Mgmt IO is Blocked %x "
3225                                         "- mbox cmd %x still active\n",
3226                                         phba->sli.sli_flag, actcmd);
3227                         break;
3228                 }
3229         }
3230 }
3231
3232 /**
3233  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3234  * @phba: pointer to lpfc hba data structure.
3235  *
3236  * Allocate RPIs for all active remote nodes. This is needed whenever
3237  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3238  * is to fixup the temporary rpi assignments.
3239  **/
3240 void
3241 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3242 {
3243         struct lpfc_nodelist  *ndlp, *next_ndlp;
3244         struct lpfc_vport **vports;
3245         int i, rpi;
3246
3247         if (phba->sli_rev != LPFC_SLI_REV4)
3248                 return;
3249
3250         vports = lpfc_create_vport_work_array(phba);
3251         if (vports == NULL)
3252                 return;
3253
3254         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3255                 if (vports[i]->load_flag & FC_UNLOADING)
3256                         continue;
3257
3258                 list_for_each_entry_safe(ndlp, next_ndlp,
3259                                          &vports[i]->fc_nodes,
3260                                          nlp_listp) {
3261                         rpi = lpfc_sli4_alloc_rpi(phba);
3262                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3263                                 /* TODO print log? */
3264                                 continue;
3265                         }
3266                         ndlp->nlp_rpi = rpi;
3267                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3268                                          LOG_NODE | LOG_DISCOVERY,
3269                                          "0009 Assign RPI x%x to ndlp x%px "
3270                                          "DID:x%06x flg:x%x\n",
3271                                          ndlp->nlp_rpi, ndlp, ndlp->nlp_DID,
3272                                          ndlp->nlp_flag);
3273                 }
3274         }
3275         lpfc_destroy_vport_work_array(phba, vports);
3276 }
3277
3278 /**
3279  * lpfc_create_expedite_pool - create expedite pool
3280  * @phba: pointer to lpfc hba data structure.
3281  *
3282  * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3283  * to expedite pool. Mark them as expedite.
3284  **/
3285 static void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3286 {
3287         struct lpfc_sli4_hdw_queue *qp;
3288         struct lpfc_io_buf *lpfc_ncmd;
3289         struct lpfc_io_buf *lpfc_ncmd_next;
3290         struct lpfc_epd_pool *epd_pool;
3291         unsigned long iflag;
3292
3293         epd_pool = &phba->epd_pool;
3294         qp = &phba->sli4_hba.hdwq[0];
3295
3296         spin_lock_init(&epd_pool->lock);
3297         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3298         spin_lock(&epd_pool->lock);
3299         INIT_LIST_HEAD(&epd_pool->list);
3300         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3301                                  &qp->lpfc_io_buf_list_put, list) {
3302                 list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
3303                 lpfc_ncmd->expedite = true;
3304                 qp->put_io_bufs--;
3305                 epd_pool->count++;
3306                 if (epd_pool->count >= XRI_BATCH)
3307                         break;
3308         }
3309         spin_unlock(&epd_pool->lock);
3310         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3311 }
3312
3313 /**
3314  * lpfc_destroy_expedite_pool - destroy expedite pool
3315  * @phba: pointer to lpfc hba data structure.
3316  *
3317  * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3318  * of HWQ 0. Clear the mark.
3319  **/
3320 static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3321 {
3322         struct lpfc_sli4_hdw_queue *qp;
3323         struct lpfc_io_buf *lpfc_ncmd;
3324         struct lpfc_io_buf *lpfc_ncmd_next;
3325         struct lpfc_epd_pool *epd_pool;
3326         unsigned long iflag;
3327
3328         epd_pool = &phba->epd_pool;
3329         qp = &phba->sli4_hba.hdwq[0];
3330
3331         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3332         spin_lock(&epd_pool->lock);
3333         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3334                                  &epd_pool->list, list) {
3335                 list_move_tail(&lpfc_ncmd->list,
3336                                &qp->lpfc_io_buf_list_put);
3337                 lpfc_ncmd->flags = false;
3338                 qp->put_io_bufs++;
3339                 epd_pool->count--;
3340         }
3341         spin_unlock(&epd_pool->lock);
3342         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3343 }
3344
3345 /**
3346  * lpfc_create_multixri_pools - create multi-XRI pools
3347  * @phba: pointer to lpfc hba data structure.
3348  *
3349  * This routine initialize public, private per HWQ. Then, move XRIs from
3350  * lpfc_io_buf_list_put to public pool. High and low watermark are also
3351  * Initialized.
3352  **/
3353 void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3354 {
3355         u32 i, j;
3356         u32 hwq_count;
3357         u32 count_per_hwq;
3358         struct lpfc_io_buf *lpfc_ncmd;
3359         struct lpfc_io_buf *lpfc_ncmd_next;
3360         unsigned long iflag;
3361         struct lpfc_sli4_hdw_queue *qp;
3362         struct lpfc_multixri_pool *multixri_pool;
3363         struct lpfc_pbl_pool *pbl_pool;
3364         struct lpfc_pvt_pool *pvt_pool;
3365
3366         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3367                         "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3368                         phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3369                         phba->sli4_hba.io_xri_cnt);
3370
3371         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3372                 lpfc_create_expedite_pool(phba);
3373
3374         hwq_count = phba->cfg_hdw_queue;
3375         count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3376
3377         for (i = 0; i < hwq_count; i++) {
3378                 multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
3379
3380                 if (!multixri_pool) {
3381                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3382                                         "1238 Failed to allocate memory for "
3383                                         "multixri_pool\n");
3384
3385                         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3386                                 lpfc_destroy_expedite_pool(phba);
3387
3388                         j = 0;
3389                         while (j < i) {
3390                                 qp = &phba->sli4_hba.hdwq[j];
3391                                 kfree(qp->p_multixri_pool);
3392                                 j++;
3393                         }
3394                         phba->cfg_xri_rebalancing = 0;
3395                         return;
3396                 }
3397
3398                 qp = &phba->sli4_hba.hdwq[i];
3399                 qp->p_multixri_pool = multixri_pool;
3400
3401                 multixri_pool->xri_limit = count_per_hwq;
3402                 multixri_pool->rrb_next_hwqid = i;
3403
3404                 /* Deal with public free xri pool */
3405                 pbl_pool = &multixri_pool->pbl_pool;
3406                 spin_lock_init(&pbl_pool->lock);
3407                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3408                 spin_lock(&pbl_pool->lock);
3409                 INIT_LIST_HEAD(&pbl_pool->list);
3410                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3411                                          &qp->lpfc_io_buf_list_put, list) {
3412                         list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
3413                         qp->put_io_bufs--;
3414                         pbl_pool->count++;
3415                 }
3416                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3417                                 "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3418                                 pbl_pool->count, i);
3419                 spin_unlock(&pbl_pool->lock);
3420                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3421
3422                 /* Deal with private free xri pool */
3423                 pvt_pool = &multixri_pool->pvt_pool;
3424                 pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3425                 pvt_pool->low_watermark = XRI_BATCH;
3426                 spin_lock_init(&pvt_pool->lock);
3427                 spin_lock_irqsave(&pvt_pool->lock, iflag);
3428                 INIT_LIST_HEAD(&pvt_pool->list);
3429                 pvt_pool->count = 0;
3430                 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
3431         }
3432 }
3433
3434 /**
3435  * lpfc_destroy_multixri_pools - destroy multi-XRI pools
3436  * @phba: pointer to lpfc hba data structure.
3437  *
3438  * This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3439  **/
3440 static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3441 {
3442         u32 i;
3443         u32 hwq_count;
3444         struct lpfc_io_buf *lpfc_ncmd;
3445         struct lpfc_io_buf *lpfc_ncmd_next;
3446         unsigned long iflag;
3447         struct lpfc_sli4_hdw_queue *qp;
3448         struct lpfc_multixri_pool *multixri_pool;
3449         struct lpfc_pbl_pool *pbl_pool;
3450         struct lpfc_pvt_pool *pvt_pool;
3451
3452         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3453                 lpfc_destroy_expedite_pool(phba);
3454
3455         if (!(phba->pport->load_flag & FC_UNLOADING))
3456                 lpfc_sli_flush_io_rings(phba);
3457
3458         hwq_count = phba->cfg_hdw_queue;
3459
3460         for (i = 0; i < hwq_count; i++) {
3461                 qp = &phba->sli4_hba.hdwq[i];
3462                 multixri_pool = qp->p_multixri_pool;
3463                 if (!multixri_pool)
3464                         continue;
3465
3466                 qp->p_multixri_pool = NULL;
3467
3468                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3469
3470                 /* Deal with public free xri pool */
3471                 pbl_pool = &multixri_pool->pbl_pool;
3472                 spin_lock(&pbl_pool->lock);
3473
3474                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3475                                 "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3476                                 pbl_pool->count, i);
3477
3478                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3479                                          &pbl_pool->list, list) {
3480                         list_move_tail(&lpfc_ncmd->list,
3481                                        &qp->lpfc_io_buf_list_put);
3482                         qp->put_io_bufs++;
3483                         pbl_pool->count--;
3484                 }
3485
3486                 INIT_LIST_HEAD(&pbl_pool->list);
3487                 pbl_pool->count = 0;
3488
3489                 spin_unlock(&pbl_pool->lock);
3490
3491                 /* Deal with private free xri pool */
3492                 pvt_pool = &multixri_pool->pvt_pool;
3493                 spin_lock(&pvt_pool->lock);
3494
3495                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3496                                 "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3497                                 pvt_pool->count, i);
3498
3499                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3500                                          &pvt_pool->list, list) {
3501                         list_move_tail(&lpfc_ncmd->list,
3502                                        &qp->lpfc_io_buf_list_put);
3503                         qp->put_io_bufs++;
3504                         pvt_pool->count--;
3505                 }
3506
3507                 INIT_LIST_HEAD(&pvt_pool->list);
3508                 pvt_pool->count = 0;
3509
3510                 spin_unlock(&pvt_pool->lock);
3511                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3512
3513                 kfree(multixri_pool);
3514         }
3515 }
3516
3517 /**
3518  * lpfc_online - Initialize and bring a HBA online
3519  * @phba: pointer to lpfc hba data structure.
3520  *
3521  * This routine initializes the HBA and brings a HBA online. During this
3522  * process, the management interface is blocked to prevent user space access
3523  * to the HBA interfering with the driver initialization.
3524  *
3525  * Return codes
3526  *   0 - successful
3527  *   1 - failed
3528  **/
3529 int
3530 lpfc_online(struct lpfc_hba *phba)
3531 {
3532         struct lpfc_vport *vport;
3533         struct lpfc_vport **vports;
3534         int i, error = 0;
3535         bool vpis_cleared = false;
3536
3537         if (!phba)
3538                 return 0;
3539         vport = phba->pport;
3540
3541         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3542                 return 0;
3543
3544         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3545                         "0458 Bring Adapter online\n");
3546
3547         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3548
3549         if (phba->sli_rev == LPFC_SLI_REV4) {
3550                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3551                         lpfc_unblock_mgmt_io(phba);
3552                         return 1;
3553                 }
3554                 spin_lock_irq(&phba->hbalock);
3555                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3556                         vpis_cleared = true;
3557                 spin_unlock_irq(&phba->hbalock);
3558
3559                 /* Reestablish the local initiator port.
3560                  * The offline process destroyed the previous lport.
3561                  */
3562                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3563                                 !phba->nvmet_support) {
3564                         error = lpfc_nvme_create_localport(phba->pport);
3565                         if (error)
3566                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3567                                         "6132 NVME restore reg failed "
3568                                         "on nvmei error x%x\n", error);
3569                 }
3570         } else {
3571                 lpfc_sli_queue_init(phba);
3572                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3573                         lpfc_unblock_mgmt_io(phba);
3574                         return 1;
3575                 }
3576         }
3577
3578         vports = lpfc_create_vport_work_array(phba);
3579         if (vports != NULL) {
3580                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3581                         struct Scsi_Host *shost;
3582                         shost = lpfc_shost_from_vport(vports[i]);
3583                         spin_lock_irq(shost->host_lock);
3584                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3585                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3586                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3587                         if (phba->sli_rev == LPFC_SLI_REV4) {
3588                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3589                                 if ((vpis_cleared) &&
3590                                     (vports[i]->port_type !=
3591                                         LPFC_PHYSICAL_PORT))
3592                                         vports[i]->vpi = 0;
3593                         }
3594                         spin_unlock_irq(shost->host_lock);
3595                 }
3596         }
3597         lpfc_destroy_vport_work_array(phba, vports);
3598
3599         if (phba->cfg_xri_rebalancing)
3600                 lpfc_create_multixri_pools(phba);
3601
3602         lpfc_cpuhp_add(phba);
3603
3604         lpfc_unblock_mgmt_io(phba);
3605         return 0;
3606 }
3607
3608 /**
3609  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3610  * @phba: pointer to lpfc hba data structure.
3611  *
3612  * This routine marks a HBA's management interface as not blocked. Once the
3613  * HBA's management interface is marked as not blocked, all the user space
3614  * access to the HBA, whether they are from sysfs interface or libdfc
3615  * interface will be allowed. The HBA is set to block the management interface
3616  * when the driver prepares the HBA interface for online or offline and then
3617  * set to unblock the management interface afterwards.
3618  **/
3619 void
3620 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3621 {
3622         unsigned long iflag;
3623
3624         spin_lock_irqsave(&phba->hbalock, iflag);
3625         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3626         spin_unlock_irqrestore(&phba->hbalock, iflag);
3627 }
3628
3629 /**
3630  * lpfc_offline_prep - Prepare a HBA to be brought offline
3631  * @phba: pointer to lpfc hba data structure.
3632  * @mbx_action: flag for mailbox shutdown action.
3633  *
3634  * This routine is invoked to prepare a HBA to be brought offline. It performs
3635  * unregistration login to all the nodes on all vports and flushes the mailbox
3636  * queue to make it ready to be brought offline.
3637  **/
3638 void
3639 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3640 {
3641         struct lpfc_vport *vport = phba->pport;
3642         struct lpfc_nodelist  *ndlp, *next_ndlp;
3643         struct lpfc_vport **vports;
3644         struct Scsi_Host *shost;
3645         int i;
3646
3647         if (vport->fc_flag & FC_OFFLINE_MODE)
3648                 return;
3649
3650         lpfc_block_mgmt_io(phba, mbx_action);
3651
3652         lpfc_linkdown(phba);
3653
3654         /* Issue an unreg_login to all nodes on all vports */
3655         vports = lpfc_create_vport_work_array(phba);
3656         if (vports != NULL) {
3657                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3658                         if (vports[i]->load_flag & FC_UNLOADING)
3659                                 continue;
3660                         shost = lpfc_shost_from_vport(vports[i]);
3661                         spin_lock_irq(shost->host_lock);
3662                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3663                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3664                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3665                         spin_unlock_irq(shost->host_lock);
3666
3667                         shost = lpfc_shost_from_vport(vports[i]);
3668                         list_for_each_entry_safe(ndlp, next_ndlp,
3669                                                  &vports[i]->fc_nodes,
3670                                                  nlp_listp) {
3671
3672                                 spin_lock_irq(&ndlp->lock);
3673                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3674                                 spin_unlock_irq(&ndlp->lock);
3675
3676                                 lpfc_unreg_rpi(vports[i], ndlp);
3677                                 /*
3678                                  * Whenever an SLI4 port goes offline, free the
3679                                  * RPI. Get a new RPI when the adapter port
3680                                  * comes back online.
3681                                  */
3682                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3683                                         lpfc_printf_vlog(vports[i], KERN_INFO,
3684                                                  LOG_NODE | LOG_DISCOVERY,
3685                                                  "0011 Free RPI x%x on "
3686                                                  "ndlp: x%px did x%x\n",
3687                                                  ndlp->nlp_rpi, ndlp,
3688                                                  ndlp->nlp_DID);
3689                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3690                                         ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3691                                 }
3692
3693                                 if (ndlp->nlp_type & NLP_FABRIC) {
3694                                         lpfc_disc_state_machine(vports[i], ndlp,
3695                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3696
3697                                         /* Don't remove the node unless the
3698                                          * has been unregistered with the
3699                                          * transport.  If so, let dev_loss
3700                                          * take care of the node.
3701                                          */
3702                                         if (!(ndlp->fc4_xpt_flags &
3703                                               (NVME_XPT_REGD | SCSI_XPT_REGD)))
3704                                                 lpfc_disc_state_machine
3705                                                         (vports[i], ndlp,
3706                                                          NULL,
3707                                                          NLP_EVT_DEVICE_RM);
3708                                 }
3709                         }
3710                 }
3711         }
3712         lpfc_destroy_vport_work_array(phba, vports);
3713
3714         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3715
3716         if (phba->wq)
3717                 flush_workqueue(phba->wq);
3718 }
3719
3720 /**
3721  * lpfc_offline - Bring a HBA offline
3722  * @phba: pointer to lpfc hba data structure.
3723  *
3724  * This routine actually brings a HBA offline. It stops all the timers
3725  * associated with the HBA, brings down the SLI layer, and eventually
3726  * marks the HBA as in offline state for the upper layer protocol.
3727  **/
3728 void
3729 lpfc_offline(struct lpfc_hba *phba)
3730 {
3731         struct Scsi_Host  *shost;
3732         struct lpfc_vport **vports;
3733         int i;
3734
3735         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3736                 return;
3737
3738         /* stop port and all timers associated with this hba */
3739         lpfc_stop_port(phba);
3740
3741         /* Tear down the local and target port registrations.  The
3742          * nvme transports need to cleanup.
3743          */
3744         lpfc_nvmet_destroy_targetport(phba);
3745         lpfc_nvme_destroy_localport(phba->pport);
3746
3747         vports = lpfc_create_vport_work_array(phba);
3748         if (vports != NULL)
3749                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3750                         lpfc_stop_vport_timers(vports[i]);
3751         lpfc_destroy_vport_work_array(phba, vports);
3752         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3753                         "0460 Bring Adapter offline\n");
3754         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3755            now.  */
3756         lpfc_sli_hba_down(phba);
3757         spin_lock_irq(&phba->hbalock);
3758         phba->work_ha = 0;
3759         spin_unlock_irq(&phba->hbalock);
3760         vports = lpfc_create_vport_work_array(phba);
3761         if (vports != NULL)
3762                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3763                         shost = lpfc_shost_from_vport(vports[i]);
3764                         spin_lock_irq(shost->host_lock);
3765                         vports[i]->work_port_events = 0;
3766                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3767                         spin_unlock_irq(shost->host_lock);
3768                 }
3769         lpfc_destroy_vport_work_array(phba, vports);
3770         /* If OFFLINE flag is clear (i.e. unloading), cpuhp removal is handled
3771          * in hba_unset
3772          */
3773         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3774                 __lpfc_cpuhp_remove(phba);
3775
3776         if (phba->cfg_xri_rebalancing)
3777                 lpfc_destroy_multixri_pools(phba);
3778 }
3779
3780 /**
3781  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3782  * @phba: pointer to lpfc hba data structure.
3783  *
3784  * This routine is to free all the SCSI buffers and IOCBs from the driver
3785  * list back to kernel. It is called from lpfc_pci_remove_one to free
3786  * the internal resources before the device is removed from the system.
3787  **/
3788 static void
3789 lpfc_scsi_free(struct lpfc_hba *phba)
3790 {
3791         struct lpfc_io_buf *sb, *sb_next;
3792
3793         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3794                 return;
3795
3796         spin_lock_irq(&phba->hbalock);
3797
3798         /* Release all the lpfc_scsi_bufs maintained by this host. */
3799
3800         spin_lock(&phba->scsi_buf_list_put_lock);
3801         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3802                                  list) {
3803                 list_del(&sb->list);
3804                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3805                               sb->dma_handle);
3806                 kfree(sb);
3807                 phba->total_scsi_bufs--;
3808         }
3809         spin_unlock(&phba->scsi_buf_list_put_lock);
3810
3811         spin_lock(&phba->scsi_buf_list_get_lock);
3812         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3813                                  list) {
3814                 list_del(&sb->list);
3815                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3816                               sb->dma_handle);
3817                 kfree(sb);
3818                 phba->total_scsi_bufs--;
3819         }
3820         spin_unlock(&phba->scsi_buf_list_get_lock);
3821         spin_unlock_irq(&phba->hbalock);
3822 }
3823
3824 /**
3825  * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
3826  * @phba: pointer to lpfc hba data structure.
3827  *
3828  * This routine is to free all the IO buffers and IOCBs from the driver
3829  * list back to kernel. It is called from lpfc_pci_remove_one to free
3830  * the internal resources before the device is removed from the system.
3831  **/
3832 void
3833 lpfc_io_free(struct lpfc_hba *phba)
3834 {
3835         struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
3836         struct lpfc_sli4_hdw_queue *qp;
3837         int idx;
3838
3839         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3840                 qp = &phba->sli4_hba.hdwq[idx];
3841                 /* Release all the lpfc_nvme_bufs maintained by this host. */
3842                 spin_lock(&qp->io_buf_list_put_lock);
3843                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3844                                          &qp->lpfc_io_buf_list_put,
3845                                          list) {
3846                         list_del(&lpfc_ncmd->list);
3847                         qp->put_io_bufs--;
3848                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3849                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3850                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3851                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3852                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3853                         kfree(lpfc_ncmd);
3854                         qp->total_io_bufs--;
3855                 }
3856                 spin_unlock(&qp->io_buf_list_put_lock);
3857
3858                 spin_lock(&qp->io_buf_list_get_lock);
3859                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3860                                          &qp->lpfc_io_buf_list_get,
3861                                          list) {
3862                         list_del(&lpfc_ncmd->list);
3863                         qp->get_io_bufs--;
3864                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3865                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3866                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3867                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3868                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3869                         kfree(lpfc_ncmd);
3870                         qp->total_io_bufs--;
3871                 }
3872                 spin_unlock(&qp->io_buf_list_get_lock);
3873         }
3874 }
3875
3876 /**
3877  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3878  * @phba: pointer to lpfc hba data structure.
3879  *
3880  * This routine first calculates the sizes of the current els and allocated
3881  * scsi sgl lists, and then goes through all sgls to updates the physical
3882  * XRIs assigned due to port function reset. During port initialization, the
3883  * current els and allocated scsi sgl lists are 0s.
3884  *
3885  * Return codes
3886  *   0 - successful (for now, it always returns 0)
3887  **/
3888 int
3889 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3890 {
3891         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3892         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3893         LIST_HEAD(els_sgl_list);
3894         int rc;
3895
3896         /*
3897          * update on pci function's els xri-sgl list
3898          */
3899         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3900
3901         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3902                 /* els xri-sgl expanded */
3903                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3904                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3905                                 "3157 ELS xri-sgl count increased from "
3906                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3907                                 els_xri_cnt);
3908                 /* allocate the additional els sgls */
3909                 for (i = 0; i < xri_cnt; i++) {
3910                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3911                                              GFP_KERNEL);
3912                         if (sglq_entry == NULL) {
3913                                 lpfc_printf_log(phba, KERN_ERR,
3914                                                 LOG_TRACE_EVENT,
3915                                                 "2562 Failure to allocate an "
3916                                                 "ELS sgl entry:%d\n", i);
3917                                 rc = -ENOMEM;
3918                                 goto out_free_mem;
3919                         }
3920                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3921                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3922                                                            &sglq_entry->phys);
3923                         if (sglq_entry->virt == NULL) {
3924                                 kfree(sglq_entry);
3925                                 lpfc_printf_log(phba, KERN_ERR,
3926                                                 LOG_TRACE_EVENT,
3927                                                 "2563 Failure to allocate an "
3928                                                 "ELS mbuf:%d\n", i);
3929                                 rc = -ENOMEM;
3930                                 goto out_free_mem;
3931                         }
3932                         sglq_entry->sgl = sglq_entry->virt;
3933                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3934                         sglq_entry->state = SGL_FREED;
3935                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3936                 }
3937                 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
3938                 list_splice_init(&els_sgl_list,
3939                                  &phba->sli4_hba.lpfc_els_sgl_list);
3940                 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
3941         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3942                 /* els xri-sgl shrinked */
3943                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3944                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3945                                 "3158 ELS xri-sgl count decreased from "
3946                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3947                                 els_xri_cnt);
3948                 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
3949                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3950                                  &els_sgl_list);
3951                 /* release extra els sgls from list */
3952                 for (i = 0; i < xri_cnt; i++) {
3953                         list_remove_head(&els_sgl_list,
3954                                          sglq_entry, struct lpfc_sglq, list);
3955                         if (sglq_entry) {
3956                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
3957                                                  sglq_entry->phys);
3958                                 kfree(sglq_entry);
3959                         }
3960                 }
3961                 list_splice_init(&els_sgl_list,
3962                                  &phba->sli4_hba.lpfc_els_sgl_list);
3963                 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
3964         } else
3965                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3966                                 "3163 ELS xri-sgl count unchanged: %d\n",
3967                                 els_xri_cnt);
3968         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3969
3970         /* update xris to els sgls on the list */
3971         sglq_entry = NULL;
3972         sglq_entry_next = NULL;
3973         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3974                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
3975                 lxri = lpfc_sli4_next_xritag(phba);
3976                 if (lxri == NO_XRI) {
3977                         lpfc_printf_log(phba, KERN_ERR,
3978                                         LOG_TRACE_EVENT,
3979                                         "2400 Failed to allocate xri for "
3980                                         "ELS sgl\n");
3981                         rc = -ENOMEM;
3982                         goto out_free_mem;
3983                 }
3984                 sglq_entry->sli4_lxritag = lxri;
3985                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3986         }
3987         return 0;
3988
3989 out_free_mem:
3990         lpfc_free_els_sgl_list(phba);
3991         return rc;
3992 }
3993
3994 /**
3995  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3996  * @phba: pointer to lpfc hba data structure.
3997  *
3998  * This routine first calculates the sizes of the current els and allocated
3999  * scsi sgl lists, and then goes through all sgls to updates the physical
4000  * XRIs assigned due to port function reset. During port initialization, the
4001  * current els and allocated scsi sgl lists are 0s.
4002  *
4003  * Return codes
4004  *   0 - successful (for now, it always returns 0)
4005  **/
4006 int
4007 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
4008 {
4009         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
4010         uint16_t i, lxri, xri_cnt, els_xri_cnt;
4011         uint16_t nvmet_xri_cnt;
4012         LIST_HEAD(nvmet_sgl_list);
4013         int rc;
4014
4015         /*
4016          * update on pci function's nvmet xri-sgl list
4017          */
4018         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4019
4020         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
4021         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4022         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
4023                 /* els xri-sgl expanded */
4024                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
4025                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4026                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
4027                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
4028                 /* allocate the additional nvmet sgls */
4029                 for (i = 0; i < xri_cnt; i++) {
4030                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
4031                                              GFP_KERNEL);
4032                         if (sglq_entry == NULL) {
4033                                 lpfc_printf_log(phba, KERN_ERR,
4034                                                 LOG_TRACE_EVENT,
4035                                                 "6303 Failure to allocate an "
4036                                                 "NVMET sgl entry:%d\n", i);
4037                                 rc = -ENOMEM;
4038                                 goto out_free_mem;
4039                         }
4040                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
4041                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
4042                                                            &sglq_entry->phys);
4043                         if (sglq_entry->virt == NULL) {
4044                                 kfree(sglq_entry);
4045                                 lpfc_printf_log(phba, KERN_ERR,
4046                                                 LOG_TRACE_EVENT,
4047                                                 "6304 Failure to allocate an "
4048                                                 "NVMET buf:%d\n", i);
4049                                 rc = -ENOMEM;
4050                                 goto out_free_mem;
4051                         }
4052                         sglq_entry->sgl = sglq_entry->virt;
4053                         memset(sglq_entry->sgl, 0,
4054                                phba->cfg_sg_dma_buf_size);
4055                         sglq_entry->state = SGL_FREED;
4056                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
4057                 }
4058                 spin_lock_irq(&phba->hbalock);
4059                 spin_lock(&phba->sli4_hba.sgl_list_lock);
4060                 list_splice_init(&nvmet_sgl_list,
4061                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
4062                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
4063                 spin_unlock_irq(&phba->hbalock);
4064         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
4065                 /* nvmet xri-sgl shrunk */
4066                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
4067                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4068                                 "6305 NVMET xri-sgl count decreased from "
4069                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
4070                                 nvmet_xri_cnt);
4071                 spin_lock_irq(&phba->hbalock);
4072                 spin_lock(&phba->sli4_hba.sgl_list_lock);
4073                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
4074                                  &nvmet_sgl_list);
4075                 /* release extra nvmet sgls from list */
4076                 for (i = 0; i < xri_cnt; i++) {
4077                         list_remove_head(&nvmet_sgl_list,
4078                                          sglq_entry, struct lpfc_sglq, list);
4079                         if (sglq_entry) {
4080                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
4081                                                     sglq_entry->phys);
4082                                 kfree(sglq_entry);
4083                         }
4084                 }
4085                 list_splice_init(&nvmet_sgl_list,
4086                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
4087                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
4088                 spin_unlock_irq(&phba->hbalock);
4089         } else
4090                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4091                                 "6306 NVMET xri-sgl count unchanged: %d\n",
4092                                 nvmet_xri_cnt);
4093         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
4094
4095         /* update xris to nvmet sgls on the list */
4096         sglq_entry = NULL;
4097         sglq_entry_next = NULL;
4098         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
4099                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
4100                 lxri = lpfc_sli4_next_xritag(phba);
4101                 if (lxri == NO_XRI) {
4102                         lpfc_printf_log(phba, KERN_ERR,
4103                                         LOG_TRACE_EVENT,
4104                                         "6307 Failed to allocate xri for "
4105                                         "NVMET sgl\n");
4106                         rc = -ENOMEM;
4107                         goto out_free_mem;
4108                 }
4109                 sglq_entry->sli4_lxritag = lxri;
4110                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4111         }
4112         return 0;
4113
4114 out_free_mem:
4115         lpfc_free_nvmet_sgl_list(phba);
4116         return rc;
4117 }
4118
4119 int
4120 lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
4121 {
4122         LIST_HEAD(blist);
4123         struct lpfc_sli4_hdw_queue *qp;
4124         struct lpfc_io_buf *lpfc_cmd;
4125         struct lpfc_io_buf *iobufp, *prev_iobufp;
4126         int idx, cnt, xri, inserted;
4127
4128         cnt = 0;
4129         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4130                 qp = &phba->sli4_hba.hdwq[idx];
4131                 spin_lock_irq(&qp->io_buf_list_get_lock);
4132                 spin_lock(&qp->io_buf_list_put_lock);
4133
4134                 /* Take everything off the get and put lists */
4135                 list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
4136                 list_splice(&qp->lpfc_io_buf_list_put, &blist);
4137                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
4138                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
4139                 cnt += qp->get_io_bufs + qp->put_io_bufs;
4140                 qp->get_io_bufs = 0;
4141                 qp->put_io_bufs = 0;
4142                 qp->total_io_bufs = 0;
4143                 spin_unlock(&qp->io_buf_list_put_lock);
4144                 spin_unlock_irq(&qp->io_buf_list_get_lock);
4145         }
4146
4147         /*
4148          * Take IO buffers off blist and put on cbuf sorted by XRI.
4149          * This is because POST_SGL takes a sequential range of XRIs
4150          * to post to the firmware.
4151          */
4152         for (idx = 0; idx < cnt; idx++) {
4153                 list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
4154                 if (!lpfc_cmd)
4155                         return cnt;
4156                 if (idx == 0) {
4157                         list_add_tail(&lpfc_cmd->list, cbuf);
4158                         continue;
4159                 }
4160                 xri = lpfc_cmd->cur_iocbq.sli4_xritag;
4161                 inserted = 0;
4162                 prev_iobufp = NULL;
4163                 list_for_each_entry(iobufp, cbuf, list) {
4164                         if (xri < iobufp->cur_iocbq.sli4_xritag) {
4165                                 if (prev_iobufp)
4166                                         list_add(&lpfc_cmd->list,
4167                                                  &prev_iobufp->list);
4168                                 else
4169                                         list_add(&lpfc_cmd->list, cbuf);
4170                                 inserted = 1;
4171                                 break;
4172                         }
4173                         prev_iobufp = iobufp;
4174                 }
4175                 if (!inserted)
4176                         list_add_tail(&lpfc_cmd->list, cbuf);
4177         }
4178         return cnt;
4179 }
4180
4181 int
4182 lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
4183 {
4184         struct lpfc_sli4_hdw_queue *qp;
4185         struct lpfc_io_buf *lpfc_cmd;
4186         int idx, cnt;
4187
4188         qp = phba->sli4_hba.hdwq;
4189         cnt = 0;
4190         while (!list_empty(cbuf)) {
4191                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4192                         list_remove_head(cbuf, lpfc_cmd,
4193                                          struct lpfc_io_buf, list);
4194                         if (!lpfc_cmd)
4195                                 return cnt;
4196                         cnt++;
4197                         qp = &phba->sli4_hba.hdwq[idx];
4198                         lpfc_cmd->hdwq_no = idx;
4199                         lpfc_cmd->hdwq = qp;
4200                         lpfc_cmd->cur_iocbq.wqe_cmpl = NULL;
4201                         lpfc_cmd->cur_iocbq.iocb_cmpl = NULL;
4202                         spin_lock(&qp->io_buf_list_put_lock);
4203                         list_add_tail(&lpfc_cmd->list,
4204                                       &qp->lpfc_io_buf_list_put);
4205                         qp->put_io_bufs++;
4206                         qp->total_io_bufs++;
4207                         spin_unlock(&qp->io_buf_list_put_lock);
4208                 }
4209         }
4210         return cnt;
4211 }
4212
4213 /**
4214  * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
4215  * @phba: pointer to lpfc hba data structure.
4216  *
4217  * This routine first calculates the sizes of the current els and allocated
4218  * scsi sgl lists, and then goes through all sgls to updates the physical
4219  * XRIs assigned due to port function reset. During port initialization, the
4220  * current els and allocated scsi sgl lists are 0s.
4221  *
4222  * Return codes
4223  *   0 - successful (for now, it always returns 0)
4224  **/
4225 int
4226 lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
4227 {
4228         struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
4229         uint16_t i, lxri, els_xri_cnt;
4230         uint16_t io_xri_cnt, io_xri_max;
4231         LIST_HEAD(io_sgl_list);
4232         int rc, cnt;
4233
4234         /*
4235          * update on pci function's allocated nvme xri-sgl list
4236          */
4237
4238         /* maximum number of xris available for nvme buffers */
4239         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4240         io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4241         phba->sli4_hba.io_xri_max = io_xri_max;
4242
4243         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4244                         "6074 Current allocated XRI sgl count:%d, "
4245                         "maximum XRI count:%d\n",
4246                         phba->sli4_hba.io_xri_cnt,
4247                         phba->sli4_hba.io_xri_max);
4248
4249         cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
4250
4251         if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4252                 /* max nvme xri shrunk below the allocated nvme buffers */
4253                 io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4254                                         phba->sli4_hba.io_xri_max;
4255                 /* release the extra allocated nvme buffers */
4256                 for (i = 0; i < io_xri_cnt; i++) {
4257                         list_remove_head(&io_sgl_list, lpfc_ncmd,
4258                                          struct lpfc_io_buf, list);
4259                         if (lpfc_ncmd) {
4260                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4261                                               lpfc_ncmd->data,
4262                                               lpfc_ncmd->dma_handle);
4263                                 kfree(lpfc_ncmd);
4264                         }
4265                 }
4266                 phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4267         }
4268
4269         /* update xris associated to remaining allocated nvme buffers */
4270         lpfc_ncmd = NULL;
4271         lpfc_ncmd_next = NULL;
4272         phba->sli4_hba.io_xri_cnt = cnt;
4273         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4274                                  &io_sgl_list, list) {
4275                 lxri = lpfc_sli4_next_xritag(phba);
4276                 if (lxri == NO_XRI) {
4277                         lpfc_printf_log(phba, KERN_ERR,
4278                                         LOG_TRACE_EVENT,
4279                                         "6075 Failed to allocate xri for "
4280                                         "nvme buffer\n");
4281                         rc = -ENOMEM;
4282                         goto out_free_mem;
4283                 }
4284                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4285                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4286         }
4287         cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
4288         return 0;
4289
4290 out_free_mem:
4291         lpfc_io_free(phba);
4292         return rc;
4293 }
4294
4295 /**
4296  * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4297  * @phba: Pointer to lpfc hba data structure.
4298  * @num_to_alloc: The requested number of buffers to allocate.
4299  *
4300  * This routine allocates nvme buffers for device with SLI-4 interface spec,
4301  * the nvme buffer contains all the necessary information needed to initiate
4302  * an I/O. After allocating up to @num_to_allocate IO buffers and put
4303  * them on a list, it post them to the port by using SGL block post.
4304  *
4305  * Return codes:
4306  *   int - number of IO buffers that were allocated and posted.
4307  *   0 = failure, less than num_to_alloc is a partial failure.
4308  **/
4309 int
4310 lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4311 {
4312         struct lpfc_io_buf *lpfc_ncmd;
4313         struct lpfc_iocbq *pwqeq;
4314         uint16_t iotag, lxri = 0;
4315         int bcnt, num_posted;
4316         LIST_HEAD(prep_nblist);
4317         LIST_HEAD(post_nblist);
4318         LIST_HEAD(nvme_nblist);
4319
4320         phba->sli4_hba.io_xri_cnt = 0;
4321         for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4322                 lpfc_ncmd = kzalloc(sizeof(*lpfc_ncmd), GFP_KERNEL);
4323                 if (!lpfc_ncmd)
4324                         break;
4325                 /*
4326                  * Get memory from the pci pool to map the virt space to
4327                  * pci bus space for an I/O. The DMA buffer includes the
4328                  * number of SGE's necessary to support the sg_tablesize.
4329                  */
4330                 lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool,
4331                                                   GFP_KERNEL,
4332                                                   &lpfc_ncmd->dma_handle);
4333                 if (!lpfc_ncmd->data) {
4334                         kfree(lpfc_ncmd);
4335                         break;
4336                 }
4337
4338                 if (phba->cfg_xpsgl && !phba->nvmet_support) {
4339                         INIT_LIST_HEAD(&lpfc_ncmd->dma_sgl_xtra_list);
4340                 } else {
4341                         /*
4342                          * 4K Page alignment is CRITICAL to BlockGuard, double
4343                          * check to be sure.
4344                          */
4345                         if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4346                             (((unsigned long)(lpfc_ncmd->data) &
4347                             (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4348                                 lpfc_printf_log(phba, KERN_ERR,
4349                                                 LOG_TRACE_EVENT,
4350                                                 "3369 Memory alignment err: "
4351                                                 "addr=%lx\n",
4352                                                 (unsigned long)lpfc_ncmd->data);
4353                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4354                                               lpfc_ncmd->data,
4355                                               lpfc_ncmd->dma_handle);
4356                                 kfree(lpfc_ncmd);
4357                                 break;
4358                         }
4359                 }
4360
4361                 INIT_LIST_HEAD(&lpfc_ncmd->dma_cmd_rsp_list);
4362
4363                 lxri = lpfc_sli4_next_xritag(phba);
4364                 if (lxri == NO_XRI) {
4365                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4366                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4367                         kfree(lpfc_ncmd);
4368                         break;
4369                 }
4370                 pwqeq = &lpfc_ncmd->cur_iocbq;
4371
4372                 /* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4373                 iotag = lpfc_sli_next_iotag(phba, pwqeq);
4374                 if (iotag == 0) {
4375                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4376                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4377                         kfree(lpfc_ncmd);
4378                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4379                                         "6121 Failed to allocate IOTAG for"
4380                                         " XRI:0x%x\n", lxri);
4381                         lpfc_sli4_free_xri(phba, lxri);
4382                         break;
4383                 }
4384                 pwqeq->sli4_lxritag = lxri;
4385                 pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4386                 pwqeq->context1 = lpfc_ncmd;
4387
4388                 /* Initialize local short-hand pointers. */
4389                 lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4390                 lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4391                 lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd;
4392                 spin_lock_init(&lpfc_ncmd->buf_lock);
4393
4394                 /* add the nvme buffer to a post list */
4395                 list_add_tail(&lpfc_ncmd->list, &post_nblist);
4396                 phba->sli4_hba.io_xri_cnt++;
4397         }
4398         lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4399                         "6114 Allocate %d out of %d requested new NVME "
4400                         "buffers\n", bcnt, num_to_alloc);
4401
4402         /* post the list of nvme buffer sgls to port if available */
4403         if (!list_empty(&post_nblist))
4404                 num_posted = lpfc_sli4_post_io_sgl_list(
4405                                 phba, &post_nblist, bcnt);
4406         else
4407                 num_posted = 0;
4408
4409         return num_posted;
4410 }
4411
4412 static uint64_t
4413 lpfc_get_wwpn(struct lpfc_hba *phba)
4414 {
4415         uint64_t wwn;
4416         int rc;
4417         LPFC_MBOXQ_t *mboxq;
4418         MAILBOX_t *mb;
4419
4420         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4421                                                 GFP_KERNEL);
4422         if (!mboxq)
4423                 return (uint64_t)-1;
4424
4425         /* First get WWN of HBA instance */
4426         lpfc_read_nv(phba, mboxq);
4427         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4428         if (rc != MBX_SUCCESS) {
4429                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4430                                 "6019 Mailbox failed , mbxCmd x%x "
4431                                 "READ_NV, mbxStatus x%x\n",
4432                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4433                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4434                 mempool_free(mboxq, phba->mbox_mem_pool);
4435                 return (uint64_t) -1;
4436         }
4437         mb = &mboxq->u.mb;
4438         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4439         /* wwn is WWPN of HBA instance */
4440         mempool_free(mboxq, phba->mbox_mem_pool);
4441         if (phba->sli_rev == LPFC_SLI_REV4)
4442                 return be64_to_cpu(wwn);
4443         else
4444                 return rol64(wwn, 32);
4445 }
4446
4447 /**
4448  * lpfc_vmid_res_alloc - Allocates resources for VMID
4449  * @phba: pointer to lpfc hba data structure.
4450  * @vport: pointer to vport data structure
4451  *
4452  * This routine allocated the resources needed for the VMID.
4453  *
4454  * Return codes
4455  *      0 on Success
4456  *      Non-0 on Failure
4457  */
4458 static int
4459 lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport)
4460 {
4461         /* VMID feature is supported only on SLI4 */
4462         if (phba->sli_rev == LPFC_SLI_REV3) {
4463                 phba->cfg_vmid_app_header = 0;
4464                 phba->cfg_vmid_priority_tagging = 0;
4465         }
4466
4467         if (lpfc_is_vmid_enabled(phba)) {
4468                 vport->vmid =
4469                     kcalloc(phba->cfg_max_vmid, sizeof(struct lpfc_vmid),
4470                             GFP_KERNEL);
4471                 if (!vport->vmid)
4472                         return -ENOMEM;
4473
4474                 rwlock_init(&vport->vmid_lock);
4475
4476                 /* Set the VMID parameters for the vport */
4477                 vport->vmid_priority_tagging = phba->cfg_vmid_priority_tagging;
4478                 vport->vmid_inactivity_timeout =
4479                     phba->cfg_vmid_inactivity_timeout;
4480                 vport->max_vmid = phba->cfg_max_vmid;
4481                 vport->cur_vmid_cnt = 0;
4482
4483                 vport->vmid_priority_range = bitmap_zalloc
4484                         (LPFC_VMID_MAX_PRIORITY_RANGE, GFP_KERNEL);
4485
4486                 if (!vport->vmid_priority_range) {
4487                         kfree(vport->vmid);
4488                         return -ENOMEM;
4489                 }
4490
4491                 hash_init(vport->hash_table);
4492         }
4493         return 0;
4494 }
4495
4496 /**
4497  * lpfc_create_port - Create an FC port
4498  * @phba: pointer to lpfc hba data structure.
4499  * @instance: a unique integer ID to this FC port.
4500  * @dev: pointer to the device data structure.
4501  *
4502  * This routine creates a FC port for the upper layer protocol. The FC port
4503  * can be created on top of either a physical port or a virtual port provided
4504  * by the HBA. This routine also allocates a SCSI host data structure (shost)
4505  * and associates the FC port created before adding the shost into the SCSI
4506  * layer.
4507  *
4508  * Return codes
4509  *   @vport - pointer to the virtual N_Port data structure.
4510  *   NULL - port create failed.
4511  **/
4512 struct lpfc_vport *
4513 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4514 {
4515         struct lpfc_vport *vport;
4516         struct Scsi_Host  *shost = NULL;
4517         struct scsi_host_template *template;
4518         int error = 0;
4519         int i;
4520         uint64_t wwn;
4521         bool use_no_reset_hba = false;
4522         int rc;
4523
4524         if (lpfc_no_hba_reset_cnt) {
4525                 if (phba->sli_rev < LPFC_SLI_REV4 &&
4526                     dev == &phba->pcidev->dev) {
4527                         /* Reset the port first */
4528                         lpfc_sli_brdrestart(phba);
4529                         rc = lpfc_sli_chipset_init(phba);
4530                         if (rc)
4531                                 return NULL;
4532                 }
4533                 wwn = lpfc_get_wwpn(phba);
4534         }
4535
4536         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4537                 if (wwn == lpfc_no_hba_reset[i]) {
4538                         lpfc_printf_log(phba, KERN_ERR,
4539                                         LOG_TRACE_EVENT,
4540                                         "6020 Setting use_no_reset port=%llx\n",
4541                                         wwn);
4542                         use_no_reset_hba = true;
4543                         break;
4544                 }
4545         }
4546
4547         /* Seed template for SCSI host registration */
4548         if (dev == &phba->pcidev->dev) {
4549                 template = &phba->port_template;
4550
4551                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4552                         /* Seed physical port template */
4553                         memcpy(template, &lpfc_template, sizeof(*template));
4554
4555                         if (use_no_reset_hba)
4556                                 /* template is for a no reset SCSI Host */
4557                                 template->eh_host_reset_handler = NULL;
4558
4559                         /* Template for all vports this physical port creates */
4560                         memcpy(&phba->vport_template, &lpfc_template,
4561                                sizeof(*template));
4562                         phba->vport_template.shost_attrs = lpfc_vport_attrs;
4563                         phba->vport_template.eh_bus_reset_handler = NULL;
4564                         phba->vport_template.eh_host_reset_handler = NULL;
4565                         phba->vport_template.vendor_id = 0;
4566
4567                         /* Initialize the host templates with updated value */
4568                         if (phba->sli_rev == LPFC_SLI_REV4) {
4569                                 template->sg_tablesize = phba->cfg_scsi_seg_cnt;
4570                                 phba->vport_template.sg_tablesize =
4571                                         phba->cfg_scsi_seg_cnt;
4572                         } else {
4573                                 template->sg_tablesize = phba->cfg_sg_seg_cnt;
4574                                 phba->vport_template.sg_tablesize =
4575                                         phba->cfg_sg_seg_cnt;
4576                         }
4577
4578                 } else {
4579                         /* NVMET is for physical port only */
4580                         memcpy(template, &lpfc_template_nvme,
4581                                sizeof(*template));
4582                 }
4583         } else {
4584                 template = &phba->vport_template;
4585         }
4586
4587         shost = scsi_host_alloc(template, sizeof(struct lpfc_vport));
4588         if (!shost)
4589                 goto out;
4590
4591         vport = (struct lpfc_vport *) shost->hostdata;
4592         vport->phba = phba;
4593         vport->load_flag |= FC_LOADING;
4594         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4595         vport->fc_rscn_flush = 0;
4596         lpfc_get_vport_cfgparam(vport);
4597
4598         /* Adjust value in vport */
4599         vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4600
4601         shost->unique_id = instance;
4602         shost->max_id = LPFC_MAX_TARGET;
4603         shost->max_lun = vport->cfg_max_luns;
4604         shost->this_id = -1;
4605         shost->max_cmd_len = 16;
4606
4607         if (phba->sli_rev == LPFC_SLI_REV4) {
4608                 if (!phba->cfg_fcp_mq_threshold ||
4609                     phba->cfg_fcp_mq_threshold > phba->cfg_hdw_queue)
4610                         phba->cfg_fcp_mq_threshold = phba->cfg_hdw_queue;
4611
4612                 shost->nr_hw_queues = min_t(int, 2 * num_possible_nodes(),
4613                                             phba->cfg_fcp_mq_threshold);
4614
4615                 shost->dma_boundary =
4616                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4617
4618                 if (phba->cfg_xpsgl && !phba->nvmet_support)
4619                         shost->sg_tablesize = LPFC_MAX_SG_TABLESIZE;
4620                 else
4621                         shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
4622         } else
4623                 /* SLI-3 has a limited number of hardware queues (3),
4624                  * thus there is only one for FCP processing.
4625                  */
4626                 shost->nr_hw_queues = 1;
4627
4628         /*
4629          * Set initial can_queue value since 0 is no longer supported and
4630          * scsi_add_host will fail. This will be adjusted later based on the
4631          * max xri value determined in hba setup.
4632          */
4633         shost->can_queue = phba->cfg_hba_queue_depth - 10;
4634         if (dev != &phba->pcidev->dev) {
4635                 shost->transportt = lpfc_vport_transport_template;
4636                 vport->port_type = LPFC_NPIV_PORT;
4637         } else {
4638                 shost->transportt = lpfc_transport_template;
4639                 vport->port_type = LPFC_PHYSICAL_PORT;
4640         }
4641
4642         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4643                         "9081 CreatePort TMPLATE type %x TBLsize %d "
4644                         "SEGcnt %d/%d\n",
4645                         vport->port_type, shost->sg_tablesize,
4646                         phba->cfg_scsi_seg_cnt, phba->cfg_sg_seg_cnt);
4647
4648         /* Allocate the resources for VMID */
4649         rc = lpfc_vmid_res_alloc(phba, vport);
4650
4651         if (rc)
4652                 goto out;
4653
4654         /* Initialize all internally managed lists. */
4655         INIT_LIST_HEAD(&vport->fc_nodes);
4656         INIT_LIST_HEAD(&vport->rcv_buffer_list);
4657         spin_lock_init(&vport->work_port_lock);
4658
4659         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4660
4661         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4662
4663         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4664
4665         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4666                 lpfc_setup_bg(phba, shost);
4667
4668         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4669         if (error)
4670                 goto out_put_shost;
4671
4672         spin_lock_irq(&phba->port_list_lock);
4673         list_add_tail(&vport->listentry, &phba->port_list);
4674         spin_unlock_irq(&phba->port_list_lock);
4675         return vport;
4676
4677 out_put_shost:
4678         kfree(vport->vmid);
4679         bitmap_free(vport->vmid_priority_range);
4680         scsi_host_put(shost);
4681 out:
4682         return NULL;
4683 }
4684
4685 /**
4686  * destroy_port -  destroy an FC port
4687  * @vport: pointer to an lpfc virtual N_Port data structure.
4688  *
4689  * This routine destroys a FC port from the upper layer protocol. All the
4690  * resources associated with the port are released.
4691  **/
4692 void
4693 destroy_port(struct lpfc_vport *vport)
4694 {
4695         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4696         struct lpfc_hba  *phba = vport->phba;
4697
4698         lpfc_debugfs_terminate(vport);
4699         fc_remove_host(shost);
4700         scsi_remove_host(shost);
4701
4702         spin_lock_irq(&phba->port_list_lock);
4703         list_del_init(&vport->listentry);
4704         spin_unlock_irq(&phba->port_list_lock);
4705
4706         lpfc_cleanup(vport);
4707         return;
4708 }
4709
4710 /**
4711  * lpfc_get_instance - Get a unique integer ID
4712  *
4713  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4714  * uses the kernel idr facility to perform the task.
4715  *
4716  * Return codes:
4717  *   instance - a unique integer ID allocated as the new instance.
4718  *   -1 - lpfc get instance failed.
4719  **/
4720 int
4721 lpfc_get_instance(void)
4722 {
4723         int ret;
4724
4725         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4726         return ret < 0 ? -1 : ret;
4727 }
4728
4729 /**
4730  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4731  * @shost: pointer to SCSI host data structure.
4732  * @time: elapsed time of the scan in jiffies.
4733  *
4734  * This routine is called by the SCSI layer with a SCSI host to determine
4735  * whether the scan host is finished.
4736  *
4737  * Note: there is no scan_start function as adapter initialization will have
4738  * asynchronously kicked off the link initialization.
4739  *
4740  * Return codes
4741  *   0 - SCSI host scan is not over yet.
4742  *   1 - SCSI host scan is over.
4743  **/
4744 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4745 {
4746         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4747         struct lpfc_hba   *phba = vport->phba;
4748         int stat = 0;
4749
4750         spin_lock_irq(shost->host_lock);
4751
4752         if (vport->load_flag & FC_UNLOADING) {
4753                 stat = 1;
4754                 goto finished;
4755         }
4756         if (time >= msecs_to_jiffies(30 * 1000)) {
4757                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4758                                 "0461 Scanning longer than 30 "
4759                                 "seconds.  Continuing initialization\n");
4760                 stat = 1;
4761                 goto finished;
4762         }
4763         if (time >= msecs_to_jiffies(15 * 1000) &&
4764             phba->link_state <= LPFC_LINK_DOWN) {
4765                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4766                                 "0465 Link down longer than 15 "
4767                                 "seconds.  Continuing initialization\n");
4768                 stat = 1;
4769                 goto finished;
4770         }
4771
4772         if (vport->port_state != LPFC_VPORT_READY)
4773                 goto finished;
4774         if (vport->num_disc_nodes || vport->fc_prli_sent)
4775                 goto finished;
4776         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4777                 goto finished;
4778         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4779                 goto finished;
4780
4781         stat = 1;
4782
4783 finished:
4784         spin_unlock_irq(shost->host_lock);
4785         return stat;
4786 }
4787
4788 static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4789 {
4790         struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4791         struct lpfc_hba   *phba = vport->phba;
4792
4793         fc_host_supported_speeds(shost) = 0;
4794         /*
4795          * Avoid reporting supported link speed for FCoE as it can't be
4796          * controlled via FCoE.
4797          */
4798         if (phba->hba_flag & HBA_FCOE_MODE)
4799                 return;
4800
4801         if (phba->lmt & LMT_256Gb)
4802                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_256GBIT;
4803         if (phba->lmt & LMT_128Gb)
4804                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4805         if (phba->lmt & LMT_64Gb)
4806                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4807         if (phba->lmt & LMT_32Gb)
4808                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4809         if (phba->lmt & LMT_16Gb)
4810                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4811         if (phba->lmt & LMT_10Gb)
4812                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4813         if (phba->lmt & LMT_8Gb)
4814                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4815         if (phba->lmt & LMT_4Gb)
4816                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4817         if (phba->lmt & LMT_2Gb)
4818                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4819         if (phba->lmt & LMT_1Gb)
4820                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4821 }
4822
4823 /**
4824  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4825  * @shost: pointer to SCSI host data structure.
4826  *
4827  * This routine initializes a given SCSI host attributes on a FC port. The
4828  * SCSI host can be either on top of a physical port or a virtual port.
4829  **/
4830 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4831 {
4832         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4833         struct lpfc_hba   *phba = vport->phba;
4834         /*
4835          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4836          */
4837
4838         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4839         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4840         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4841
4842         memset(fc_host_supported_fc4s(shost), 0,
4843                sizeof(fc_host_supported_fc4s(shost)));
4844         fc_host_supported_fc4s(shost)[2] = 1;
4845         fc_host_supported_fc4s(shost)[7] = 1;
4846
4847         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4848                                  sizeof fc_host_symbolic_name(shost));
4849
4850         lpfc_host_supported_speeds_set(shost);
4851
4852         fc_host_maxframe_size(shost) =
4853                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4854                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4855
4856         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4857
4858         /* This value is also unchanging */
4859         memset(fc_host_active_fc4s(shost), 0,
4860                sizeof(fc_host_active_fc4s(shost)));
4861         fc_host_active_fc4s(shost)[2] = 1;
4862         fc_host_active_fc4s(shost)[7] = 1;
4863
4864         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4865         spin_lock_irq(shost->host_lock);
4866         vport->load_flag &= ~FC_LOADING;
4867         spin_unlock_irq(shost->host_lock);
4868 }
4869
4870 /**
4871  * lpfc_stop_port_s3 - Stop SLI3 device port
4872  * @phba: pointer to lpfc hba data structure.
4873  *
4874  * This routine is invoked to stop an SLI3 device port, it stops the device
4875  * from generating interrupts and stops the device driver's timers for the
4876  * device.
4877  **/
4878 static void
4879 lpfc_stop_port_s3(struct lpfc_hba *phba)
4880 {
4881         /* Clear all interrupt enable conditions */
4882         writel(0, phba->HCregaddr);
4883         readl(phba->HCregaddr); /* flush */
4884         /* Clear all pending interrupts */
4885         writel(0xffffffff, phba->HAregaddr);
4886         readl(phba->HAregaddr); /* flush */
4887
4888         /* Reset some HBA SLI setup states */
4889         lpfc_stop_hba_timers(phba);
4890         phba->pport->work_port_events = 0;
4891 }
4892
4893 /**
4894  * lpfc_stop_port_s4 - Stop SLI4 device port
4895  * @phba: pointer to lpfc hba data structure.
4896  *
4897  * This routine is invoked to stop an SLI4 device port, it stops the device
4898  * from generating interrupts and stops the device driver's timers for the
4899  * device.
4900  **/
4901 static void
4902 lpfc_stop_port_s4(struct lpfc_hba *phba)
4903 {
4904         /* Reset some HBA SLI4 setup states */
4905         lpfc_stop_hba_timers(phba);
4906         if (phba->pport)
4907                 phba->pport->work_port_events = 0;
4908         phba->sli4_hba.intr_enable = 0;
4909 }
4910
4911 /**
4912  * lpfc_stop_port - Wrapper function for stopping hba port
4913  * @phba: Pointer to HBA context object.
4914  *
4915  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4916  * the API jump table function pointer from the lpfc_hba struct.
4917  **/
4918 void
4919 lpfc_stop_port(struct lpfc_hba *phba)
4920 {
4921         phba->lpfc_stop_port(phba);
4922
4923         if (phba->wq)
4924                 flush_workqueue(phba->wq);
4925 }
4926
4927 /**
4928  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4929  * @phba: Pointer to hba for which this call is being executed.
4930  *
4931  * This routine starts the timer waiting for the FCF rediscovery to complete.
4932  **/
4933 void
4934 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4935 {
4936         unsigned long fcf_redisc_wait_tmo =
4937                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4938         /* Start fcf rediscovery wait period timer */
4939         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4940         spin_lock_irq(&phba->hbalock);
4941         /* Allow action to new fcf asynchronous event */
4942         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4943         /* Mark the FCF rediscovery pending state */
4944         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4945         spin_unlock_irq(&phba->hbalock);
4946 }
4947
4948 /**
4949  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4950  * @t: Timer context used to obtain the pointer to lpfc hba data structure.
4951  *
4952  * This routine is invoked when waiting for FCF table rediscover has been
4953  * timed out. If new FCF record(s) has (have) been discovered during the
4954  * wait period, a new FCF event shall be added to the FCOE async event
4955  * list, and then worker thread shall be waked up for processing from the
4956  * worker thread context.
4957  **/
4958 static void
4959 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4960 {
4961         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4962
4963         /* Don't send FCF rediscovery event if timer cancelled */
4964         spin_lock_irq(&phba->hbalock);
4965         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4966                 spin_unlock_irq(&phba->hbalock);
4967                 return;
4968         }
4969         /* Clear FCF rediscovery timer pending flag */
4970         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4971         /* FCF rediscovery event to worker thread */
4972         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4973         spin_unlock_irq(&phba->hbalock);
4974         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4975                         "2776 FCF rediscover quiescent timer expired\n");
4976         /* wake up worker thread */
4977         lpfc_worker_wake_up(phba);
4978 }
4979
4980 /**
4981  * lpfc_vmid_poll - VMID timeout detection
4982  * @t: Timer context used to obtain the pointer to lpfc hba data structure.
4983  *
4984  * This routine is invoked when there is no I/O on by a VM for the specified
4985  * amount of time. When this situation is detected, the VMID has to be
4986  * deregistered from the switch and all the local resources freed. The VMID
4987  * will be reassigned to the VM once the I/O begins.
4988  **/
4989 static void
4990 lpfc_vmid_poll(struct timer_list *t)
4991 {
4992         struct lpfc_hba *phba = from_timer(phba, t, inactive_vmid_poll);
4993         u32 wake_up = 0;
4994
4995         /* check if there is a need to issue QFPA */
4996         if (phba->pport->vmid_priority_tagging) {
4997                 wake_up = 1;
4998                 phba->pport->work_port_events |= WORKER_CHECK_VMID_ISSUE_QFPA;
4999         }
5000
5001         /* Is the vmid inactivity timer enabled */
5002         if (phba->pport->vmid_inactivity_timeout ||
5003             phba->pport->load_flag & FC_DEREGISTER_ALL_APP_ID) {
5004                 wake_up = 1;
5005                 phba->pport->work_port_events |= WORKER_CHECK_INACTIVE_VMID;
5006         }
5007
5008         if (wake_up)
5009                 lpfc_worker_wake_up(phba);
5010
5011         /* restart the timer for the next iteration */
5012         mod_timer(&phba->inactive_vmid_poll, jiffies + msecs_to_jiffies(1000 *
5013                                                         LPFC_VMID_TIMER));
5014 }
5015
5016 /**
5017  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
5018  * @phba: pointer to lpfc hba data structure.
5019  * @acqe_link: pointer to the async link completion queue entry.
5020  *
5021  * This routine is to parse the SLI4 link-attention link fault code.
5022  **/
5023 static void
5024 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
5025                            struct lpfc_acqe_link *acqe_link)
5026 {
5027         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
5028         case LPFC_ASYNC_LINK_FAULT_NONE:
5029         case LPFC_ASYNC_LINK_FAULT_LOCAL:
5030         case LPFC_ASYNC_LINK_FAULT_REMOTE:
5031         case LPFC_ASYNC_LINK_FAULT_LR_LRR:
5032                 break;
5033         default:
5034                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5035                                 "0398 Unknown link fault code: x%x\n",
5036                                 bf_get(lpfc_acqe_link_fault, acqe_link));
5037                 break;
5038         }
5039 }
5040
5041 /**
5042  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
5043  * @phba: pointer to lpfc hba data structure.
5044  * @acqe_link: pointer to the async link completion queue entry.
5045  *
5046  * This routine is to parse the SLI4 link attention type and translate it
5047  * into the base driver's link attention type coding.
5048  *
5049  * Return: Link attention type in terms of base driver's coding.
5050  **/
5051 static uint8_t
5052 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
5053                           struct lpfc_acqe_link *acqe_link)
5054 {
5055         uint8_t att_type;
5056
5057         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
5058         case LPFC_ASYNC_LINK_STATUS_DOWN:
5059         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
5060                 att_type = LPFC_ATT_LINK_DOWN;
5061                 break;
5062         case LPFC_ASYNC_LINK_STATUS_UP:
5063                 /* Ignore physical link up events - wait for logical link up */
5064                 att_type = LPFC_ATT_RESERVED;
5065                 break;
5066         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
5067                 att_type = LPFC_ATT_LINK_UP;
5068                 break;
5069         default:
5070                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5071                                 "0399 Invalid link attention type: x%x\n",
5072                                 bf_get(lpfc_acqe_link_status, acqe_link));
5073                 att_type = LPFC_ATT_RESERVED;
5074                 break;
5075         }
5076         return att_type;
5077 }
5078
5079 /**
5080  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
5081  * @phba: pointer to lpfc hba data structure.
5082  *
5083  * This routine is to get an SLI3 FC port's link speed in Mbps.
5084  *
5085  * Return: link speed in terms of Mbps.
5086  **/
5087 uint32_t
5088 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
5089 {
5090         uint32_t link_speed;
5091
5092         if (!lpfc_is_link_up(phba))
5093                 return 0;
5094
5095         if (phba->sli_rev <= LPFC_SLI_REV3) {
5096                 switch (phba->fc_linkspeed) {
5097                 case LPFC_LINK_SPEED_1GHZ:
5098                         link_speed = 1000;
5099                         break;
5100                 case LPFC_LINK_SPEED_2GHZ:
5101                         link_speed = 2000;
5102                         break;
5103                 case LPFC_LINK_SPEED_4GHZ:
5104                         link_speed = 4000;
5105                         break;
5106                 case LPFC_LINK_SPEED_8GHZ:
5107                         link_speed = 8000;
5108                         break;
5109                 case LPFC_LINK_SPEED_10GHZ:
5110                         link_speed = 10000;
5111                         break;
5112                 case LPFC_LINK_SPEED_16GHZ:
5113                         link_speed = 16000;
5114                         break;
5115                 default:
5116                         link_speed = 0;
5117                 }
5118         } else {
5119                 if (phba->sli4_hba.link_state.logical_speed)
5120                         link_speed =
5121                               phba->sli4_hba.link_state.logical_speed;
5122                 else
5123                         link_speed = phba->sli4_hba.link_state.speed;
5124         }
5125         return link_speed;
5126 }
5127
5128 /**
5129  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
5130  * @phba: pointer to lpfc hba data structure.
5131  * @evt_code: asynchronous event code.
5132  * @speed_code: asynchronous event link speed code.
5133  *
5134  * This routine is to parse the giving SLI4 async event link speed code into
5135  * value of Mbps for the link speed.
5136  *
5137  * Return: link speed in terms of Mbps.
5138  **/
5139 static uint32_t
5140 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
5141                            uint8_t speed_code)
5142 {
5143         uint32_t port_speed;
5144
5145         switch (evt_code) {
5146         case LPFC_TRAILER_CODE_LINK:
5147                 switch (speed_code) {
5148                 case LPFC_ASYNC_LINK_SPEED_ZERO:
5149                         port_speed = 0;
5150                         break;
5151                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
5152                         port_speed = 10;
5153                         break;
5154                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
5155                         port_speed = 100;
5156                         break;
5157                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
5158                         port_speed = 1000;
5159                         break;
5160                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
5161                         port_speed = 10000;
5162                         break;
5163                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
5164                         port_speed = 20000;
5165                         break;
5166                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
5167                         port_speed = 25000;
5168                         break;
5169                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
5170                         port_speed = 40000;
5171                         break;
5172                 case LPFC_ASYNC_LINK_SPEED_100GBPS:
5173                         port_speed = 100000;
5174                         break;
5175                 default:
5176                         port_speed = 0;
5177                 }
5178                 break;
5179         case LPFC_TRAILER_CODE_FC:
5180                 switch (speed_code) {
5181                 case LPFC_FC_LA_SPEED_UNKNOWN:
5182                         port_speed = 0;
5183                         break;
5184                 case LPFC_FC_LA_SPEED_1G:
5185                         port_speed = 1000;
5186                         break;
5187                 case LPFC_FC_LA_SPEED_2G:
5188                         port_speed = 2000;
5189                         break;
5190                 case LPFC_FC_LA_SPEED_4G:
5191                         port_speed = 4000;
5192                         break;
5193                 case LPFC_FC_LA_SPEED_8G:
5194                         port_speed = 8000;
5195                         break;
5196                 case LPFC_FC_LA_SPEED_10G:
5197                         port_speed = 10000;
5198                         break;
5199                 case LPFC_FC_LA_SPEED_16G:
5200                         port_speed = 16000;
5201                         break;
5202                 case LPFC_FC_LA_SPEED_32G:
5203                         port_speed = 32000;
5204                         break;
5205                 case LPFC_FC_LA_SPEED_64G:
5206                         port_speed = 64000;
5207                         break;
5208                 case LPFC_FC_LA_SPEED_128G:
5209                         port_speed = 128000;
5210                         break;
5211                 case LPFC_FC_LA_SPEED_256G:
5212                         port_speed = 256000;
5213                         break;
5214                 default:
5215                         port_speed = 0;
5216                 }
5217                 break;
5218         default:
5219                 port_speed = 0;
5220         }
5221         return port_speed;
5222 }
5223
5224 /**
5225  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
5226  * @phba: pointer to lpfc hba data structure.
5227  * @acqe_link: pointer to the async link completion queue entry.
5228  *
5229  * This routine is to handle the SLI4 asynchronous FCoE link event.
5230  **/
5231 static void
5232 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
5233                          struct lpfc_acqe_link *acqe_link)
5234 {
5235         struct lpfc_dmabuf *mp;
5236         LPFC_MBOXQ_t *pmb;
5237         MAILBOX_t *mb;
5238         struct lpfc_mbx_read_top *la;
5239         uint8_t att_type;
5240         int rc;
5241
5242         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
5243         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
5244                 return;
5245         phba->fcoe_eventtag = acqe_link->event_tag;
5246         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5247         if (!pmb) {
5248                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5249                                 "0395 The mboxq allocation failed\n");
5250                 return;
5251         }
5252         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5253         if (!mp) {
5254                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5255                                 "0396 The lpfc_dmabuf allocation failed\n");
5256                 goto out_free_pmb;
5257         }
5258         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5259         if (!mp->virt) {
5260                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5261                                 "0397 The mbuf allocation failed\n");
5262                 goto out_free_dmabuf;
5263         }
5264
5265         /* Cleanup any outstanding ELS commands */
5266         lpfc_els_flush_all_cmd(phba);
5267
5268         /* Block ELS IOCBs until we have done process link event */
5269         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5270
5271         /* Update link event statistics */
5272         phba->sli.slistat.link_event++;
5273
5274         /* Create lpfc_handle_latt mailbox command from link ACQE */
5275         lpfc_read_topology(phba, pmb, mp);
5276         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5277         pmb->vport = phba->pport;
5278
5279         /* Keep the link status for extra SLI4 state machine reference */
5280         phba->sli4_hba.link_state.speed =
5281                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
5282                                 bf_get(lpfc_acqe_link_speed, acqe_link));
5283         phba->sli4_hba.link_state.duplex =
5284                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
5285         phba->sli4_hba.link_state.status =
5286                                 bf_get(lpfc_acqe_link_status, acqe_link);
5287         phba->sli4_hba.link_state.type =
5288                                 bf_get(lpfc_acqe_link_type, acqe_link);
5289         phba->sli4_hba.link_state.number =
5290                                 bf_get(lpfc_acqe_link_number, acqe_link);
5291         phba->sli4_hba.link_state.fault =
5292                                 bf_get(lpfc_acqe_link_fault, acqe_link);
5293         phba->sli4_hba.link_state.logical_speed =
5294                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
5295
5296         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5297                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
5298                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
5299                         "Logical speed:%dMbps Fault:%d\n",
5300                         phba->sli4_hba.link_state.speed,
5301                         phba->sli4_hba.link_state.topology,
5302                         phba->sli4_hba.link_state.status,
5303                         phba->sli4_hba.link_state.type,
5304                         phba->sli4_hba.link_state.number,
5305                         phba->sli4_hba.link_state.logical_speed,
5306                         phba->sli4_hba.link_state.fault);
5307         /*
5308          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
5309          * topology info. Note: Optional for non FC-AL ports.
5310          */
5311         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
5312                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5313                 if (rc == MBX_NOT_FINISHED)
5314                         goto out_free_dmabuf;
5315                 return;
5316         }
5317         /*
5318          * For FCoE Mode: fill in all the topology information we need and call
5319          * the READ_TOPOLOGY completion routine to continue without actually
5320          * sending the READ_TOPOLOGY mailbox command to the port.
5321          */
5322         /* Initialize completion status */
5323         mb = &pmb->u.mb;
5324         mb->mbxStatus = MBX_SUCCESS;
5325
5326         /* Parse port fault information field */
5327         lpfc_sli4_parse_latt_fault(phba, acqe_link);
5328
5329         /* Parse and translate link attention fields */
5330         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
5331         la->eventTag = acqe_link->event_tag;
5332         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
5333         bf_set(lpfc_mbx_read_top_link_spd, la,
5334                (bf_get(lpfc_acqe_link_speed, acqe_link)));
5335
5336         /* Fake the the following irrelvant fields */
5337         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
5338         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
5339         bf_set(lpfc_mbx_read_top_il, la, 0);
5340         bf_set(lpfc_mbx_read_top_pb, la, 0);
5341         bf_set(lpfc_mbx_read_top_fa, la, 0);
5342         bf_set(lpfc_mbx_read_top_mm, la, 0);
5343
5344         /* Invoke the lpfc_handle_latt mailbox command callback function */
5345         lpfc_mbx_cmpl_read_topology(phba, pmb);
5346
5347         return;
5348
5349 out_free_dmabuf:
5350         kfree(mp);
5351 out_free_pmb:
5352         mempool_free(pmb, phba->mbox_mem_pool);
5353 }
5354
5355 /**
5356  * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
5357  * topology.
5358  * @phba: pointer to lpfc hba data structure.
5359  * @speed_code: asynchronous event link speed code.
5360  *
5361  * This routine is to parse the giving SLI4 async event link speed code into
5362  * value of Read topology link speed.
5363  *
5364  * Return: link speed in terms of Read topology.
5365  **/
5366 static uint8_t
5367 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
5368 {
5369         uint8_t port_speed;
5370
5371         switch (speed_code) {
5372         case LPFC_FC_LA_SPEED_1G:
5373                 port_speed = LPFC_LINK_SPEED_1GHZ;
5374                 break;
5375         case LPFC_FC_LA_SPEED_2G:
5376                 port_speed = LPFC_LINK_SPEED_2GHZ;
5377                 break;
5378         case LPFC_FC_LA_SPEED_4G:
5379                 port_speed = LPFC_LINK_SPEED_4GHZ;
5380                 break;
5381         case LPFC_FC_LA_SPEED_8G:
5382                 port_speed = LPFC_LINK_SPEED_8GHZ;
5383                 break;
5384         case LPFC_FC_LA_SPEED_16G:
5385                 port_speed = LPFC_LINK_SPEED_16GHZ;
5386                 break;
5387         case LPFC_FC_LA_SPEED_32G:
5388                 port_speed = LPFC_LINK_SPEED_32GHZ;
5389                 break;
5390         case LPFC_FC_LA_SPEED_64G:
5391                 port_speed = LPFC_LINK_SPEED_64GHZ;
5392                 break;
5393         case LPFC_FC_LA_SPEED_128G:
5394                 port_speed = LPFC_LINK_SPEED_128GHZ;
5395                 break;
5396         case LPFC_FC_LA_SPEED_256G:
5397                 port_speed = LPFC_LINK_SPEED_256GHZ;
5398                 break;
5399         default:
5400                 port_speed = 0;
5401                 break;
5402         }
5403
5404         return port_speed;
5405 }
5406
5407 /**
5408  * lpfc_calc_cmf_latency - latency from start of rxate timer interval
5409  * @phba: The Hba for which this call is being executed.
5410  *
5411  * The routine calculates the latency from the beginning of the CMF timer
5412  * interval to the current point in time. It is called from IO completion
5413  * when we exceed our Bandwidth limitation for the time interval.
5414  */
5415 uint32_t
5416 lpfc_calc_cmf_latency(struct lpfc_hba *phba)
5417 {
5418         struct timespec64 cmpl_time;
5419         uint32_t msec = 0;
5420
5421         ktime_get_real_ts64(&cmpl_time);
5422
5423         /* This routine works on a ms granularity so sec and usec are
5424          * converted accordingly.
5425          */
5426         if (cmpl_time.tv_sec == phba->cmf_latency.tv_sec) {
5427                 msec = (cmpl_time.tv_nsec - phba->cmf_latency.tv_nsec) /
5428                         NSEC_PER_MSEC;
5429         } else {
5430                 if (cmpl_time.tv_nsec >= phba->cmf_latency.tv_nsec) {
5431                         msec = (cmpl_time.tv_sec -
5432                                 phba->cmf_latency.tv_sec) * MSEC_PER_SEC;
5433                         msec += ((cmpl_time.tv_nsec -
5434                                   phba->cmf_latency.tv_nsec) / NSEC_PER_MSEC);
5435                 } else {
5436                         msec = (cmpl_time.tv_sec - phba->cmf_latency.tv_sec -
5437                                 1) * MSEC_PER_SEC;
5438                         msec += (((NSEC_PER_SEC - phba->cmf_latency.tv_nsec) +
5439                                  cmpl_time.tv_nsec) / NSEC_PER_MSEC);
5440                 }
5441         }
5442         return msec;
5443 }
5444
5445 /**
5446  * lpfc_cmf_timer -  This is the timer function for one congestion
5447  * rate interval.
5448  * @timer: Pointer to the high resolution timer that expired
5449  */
5450 static enum hrtimer_restart
5451 lpfc_cmf_timer(struct hrtimer *timer)
5452 {
5453         struct lpfc_hba *phba = container_of(timer, struct lpfc_hba,
5454                                              cmf_timer);
5455         uint32_t io_cnt;
5456         uint64_t total, rcv, lat, mbpi;
5457         int timer_interval = LPFC_CMF_INTERVAL;
5458         struct lpfc_cgn_stat *cgs;
5459         int cpu;
5460
5461         /* Only restart the timer if congestion mgmt is on */
5462         if (phba->cmf_active_mode == LPFC_CFG_OFF ||
5463             !phba->cmf_latency.tv_sec) {
5464                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5465                                 "6224 CMF timer exit: %d %lld\n",
5466                                 phba->cmf_active_mode,
5467                                 (uint64_t)phba->cmf_latency.tv_sec);
5468                 return HRTIMER_NORESTART;
5469         }
5470
5471         /* If pport is not ready yet, just exit and wait for
5472          * the next timer cycle to hit.
5473          */
5474         if (!phba->pport)
5475                 goto skip;
5476
5477         /* Do not block SCSI IO while in the timer routine since
5478          * total_bytes will be cleared
5479          */
5480         atomic_set(&phba->cmf_stop_io, 1);
5481
5482         /* Immediately after we calculate the time since the last
5483          * timer interrupt, set the start time for the next
5484          * interrupt
5485          */
5486         ktime_get_real_ts64(&phba->cmf_latency);
5487
5488         phba->cmf_link_byte_count =
5489                 div_u64(phba->cmf_max_line_rate * LPFC_CMF_INTERVAL, 1000);
5490
5491         /* Collect all the stats from the prior timer interval */
5492         total = 0;
5493         io_cnt = 0;
5494         lat = 0;
5495         rcv = 0;
5496         for_each_present_cpu(cpu) {
5497                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
5498                 total += atomic64_xchg(&cgs->total_bytes, 0);
5499                 io_cnt += atomic_xchg(&cgs->rx_io_cnt, 0);
5500                 lat += atomic64_xchg(&cgs->rx_latency, 0);
5501                 rcv += atomic64_xchg(&cgs->rcv_bytes, 0);
5502         }
5503
5504         /* Before we issue another CMF_SYNC_WQE, retrieve the BW
5505          * returned from the last CMF_SYNC_WQE issued, from
5506          * cmf_last_sync_bw. This will be the target BW for
5507          * this next timer interval.
5508          */
5509         if (phba->cmf_active_mode == LPFC_CFG_MANAGED &&
5510             phba->link_state != LPFC_LINK_DOWN &&
5511             phba->hba_flag & HBA_SETUP) {
5512                 mbpi = phba->cmf_last_sync_bw;
5513                 phba->cmf_last_sync_bw = 0;
5514                 lpfc_issue_cmf_sync_wqe(phba, LPFC_CMF_INTERVAL, total);
5515         } else {
5516                 /* For Monitor mode or link down we want mbpi
5517                  * to be the full link speed
5518                  */
5519                 mbpi = phba->cmf_link_byte_count;
5520         }
5521         phba->cmf_timer_cnt++;
5522
5523         if (io_cnt) {
5524                 /* Update congestion info buffer latency in us */
5525                 atomic_add(io_cnt, &phba->cgn_latency_evt_cnt);
5526                 atomic64_add(lat, &phba->cgn_latency_evt);
5527         }
5528
5529         /* Calculate MBPI for the next timer interval */
5530         if (mbpi) {
5531                 if (mbpi > phba->cmf_link_byte_count ||
5532                     phba->cmf_active_mode == LPFC_CFG_MONITOR)
5533                         mbpi = phba->cmf_link_byte_count;
5534
5535                 /* Change max_bytes_per_interval to what the prior
5536                  * CMF_SYNC_WQE cmpl indicated.
5537                  */
5538                 if (mbpi != phba->cmf_max_bytes_per_interval)
5539                         phba->cmf_max_bytes_per_interval = mbpi;
5540         }
5541
5542         if (phba->cmf_active_mode == LPFC_CFG_MONITOR) {
5543                 /* If Monitor mode, check if we are oversubscribed
5544                  * against the full line rate.
5545                  */
5546                 if (mbpi && total > mbpi)
5547                         atomic_inc(&phba->cgn_driver_evt_cnt);
5548         }
5549         phba->rx_block_cnt += div_u64(rcv, 512);  /* save 512 byte block cnt */
5550
5551         /* Since total_bytes has already been zero'ed, its okay to unblock
5552          * after max_bytes_per_interval is setup.
5553          */
5554         if (atomic_xchg(&phba->cmf_bw_wait, 0))
5555                 queue_work(phba->wq, &phba->unblock_request_work);
5556
5557         /* SCSI IO is now unblocked */
5558         atomic_set(&phba->cmf_stop_io, 0);
5559
5560 skip:
5561         hrtimer_forward_now(timer,
5562                             ktime_set(0, timer_interval * NSEC_PER_MSEC));
5563         return HRTIMER_RESTART;
5564 }
5565
5566 #define trunk_link_status(__idx)\
5567         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5568                ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
5569                 "Link up" : "Link down") : "NA"
5570 /* Did port __idx reported an error */
5571 #define trunk_port_fault(__idx)\
5572         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5573                (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
5574
5575 static void
5576 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
5577                               struct lpfc_acqe_fc_la *acqe_fc)
5578 {
5579         uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
5580         uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
5581
5582         phba->sli4_hba.link_state.speed =
5583                 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5584                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5585
5586         phba->sli4_hba.link_state.logical_speed =
5587                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5588         /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
5589         phba->fc_linkspeed =
5590                  lpfc_async_link_speed_to_read_top(
5591                                 phba,
5592                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5593
5594         if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
5595                 phba->trunk_link.link0.state =
5596                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
5597                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5598                 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
5599         }
5600         if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
5601                 phba->trunk_link.link1.state =
5602                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
5603                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5604                 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
5605         }
5606         if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
5607                 phba->trunk_link.link2.state =
5608                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
5609                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5610                 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
5611         }
5612         if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
5613                 phba->trunk_link.link3.state =
5614                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
5615                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5616                 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
5617         }
5618
5619         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5620                         "2910 Async FC Trunking Event - Speed:%d\n"
5621                         "\tLogical speed:%d "
5622                         "port0: %s port1: %s port2: %s port3: %s\n",
5623                         phba->sli4_hba.link_state.speed,
5624                         phba->sli4_hba.link_state.logical_speed,
5625                         trunk_link_status(0), trunk_link_status(1),
5626                         trunk_link_status(2), trunk_link_status(3));
5627
5628         if (phba->cmf_active_mode != LPFC_CFG_OFF)
5629                 lpfc_cmf_signal_init(phba);
5630
5631         if (port_fault)
5632                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5633                                 "3202 trunk error:0x%x (%s) seen on port0:%s "
5634                                 /*
5635                                  * SLI-4: We have only 0xA error codes
5636                                  * defined as of now. print an appropriate
5637                                  * message in case driver needs to be updated.
5638                                  */
5639                                 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
5640                                 "UNDEFINED. update driver." : trunk_errmsg[err],
5641                                 trunk_port_fault(0), trunk_port_fault(1),
5642                                 trunk_port_fault(2), trunk_port_fault(3));
5643 }
5644
5645
5646 /**
5647  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
5648  * @phba: pointer to lpfc hba data structure.
5649  * @acqe_fc: pointer to the async fc completion queue entry.
5650  *
5651  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
5652  * that the event was received and then issue a read_topology mailbox command so
5653  * that the rest of the driver will treat it the same as SLI3.
5654  **/
5655 static void
5656 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
5657 {
5658         struct lpfc_dmabuf *mp;
5659         LPFC_MBOXQ_t *pmb;
5660         MAILBOX_t *mb;
5661         struct lpfc_mbx_read_top *la;
5662         int rc;
5663
5664         if (bf_get(lpfc_trailer_type, acqe_fc) !=
5665             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
5666                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5667                                 "2895 Non FC link Event detected.(%d)\n",
5668                                 bf_get(lpfc_trailer_type, acqe_fc));
5669                 return;
5670         }
5671
5672         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5673             LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
5674                 lpfc_update_trunk_link_status(phba, acqe_fc);
5675                 return;
5676         }
5677
5678         /* Keep the link status for extra SLI4 state machine reference */
5679         phba->sli4_hba.link_state.speed =
5680                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5681                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5682         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
5683         phba->sli4_hba.link_state.topology =
5684                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
5685         phba->sli4_hba.link_state.status =
5686                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
5687         phba->sli4_hba.link_state.type =
5688                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
5689         phba->sli4_hba.link_state.number =
5690                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
5691         phba->sli4_hba.link_state.fault =
5692                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
5693
5694         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5695             LPFC_FC_LA_TYPE_LINK_DOWN)
5696                 phba->sli4_hba.link_state.logical_speed = 0;
5697         else if (!phba->sli4_hba.conf_trunk)
5698                 phba->sli4_hba.link_state.logical_speed =
5699                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5700
5701         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5702                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
5703                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
5704                         "%dMbps Fault:%d\n",
5705                         phba->sli4_hba.link_state.speed,
5706                         phba->sli4_hba.link_state.topology,
5707                         phba->sli4_hba.link_state.status,
5708                         phba->sli4_hba.link_state.type,
5709                         phba->sli4_hba.link_state.number,
5710                         phba->sli4_hba.link_state.logical_speed,
5711                         phba->sli4_hba.link_state.fault);
5712         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5713         if (!pmb) {
5714                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5715                                 "2897 The mboxq allocation failed\n");
5716                 return;
5717         }
5718         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5719         if (!mp) {
5720                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5721                                 "2898 The lpfc_dmabuf allocation failed\n");
5722                 goto out_free_pmb;
5723         }
5724         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5725         if (!mp->virt) {
5726                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5727                                 "2899 The mbuf allocation failed\n");
5728                 goto out_free_dmabuf;
5729         }
5730
5731         /* Cleanup any outstanding ELS commands */
5732         lpfc_els_flush_all_cmd(phba);
5733
5734         /* Block ELS IOCBs until we have done process link event */
5735         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5736
5737         /* Update link event statistics */
5738         phba->sli.slistat.link_event++;
5739
5740         /* Create lpfc_handle_latt mailbox command from link ACQE */
5741         lpfc_read_topology(phba, pmb, mp);
5742         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5743         pmb->vport = phba->pport;
5744
5745         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
5746                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
5747
5748                 switch (phba->sli4_hba.link_state.status) {
5749                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
5750                         phba->link_flag |= LS_MDS_LINK_DOWN;
5751                         break;
5752                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
5753                         phba->link_flag |= LS_MDS_LOOPBACK;
5754                         break;
5755                 default:
5756                         break;
5757                 }
5758
5759                 /* Initialize completion status */
5760                 mb = &pmb->u.mb;
5761                 mb->mbxStatus = MBX_SUCCESS;
5762
5763                 /* Parse port fault information field */
5764                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
5765
5766                 /* Parse and translate link attention fields */
5767                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
5768                 la->eventTag = acqe_fc->event_tag;
5769
5770                 if (phba->sli4_hba.link_state.status ==
5771                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
5772                         bf_set(lpfc_mbx_read_top_att_type, la,
5773                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
5774                 } else {
5775                         bf_set(lpfc_mbx_read_top_att_type, la,
5776                                LPFC_FC_LA_TYPE_LINK_DOWN);
5777                 }
5778                 /* Invoke the mailbox command callback function */
5779                 lpfc_mbx_cmpl_read_topology(phba, pmb);
5780
5781                 return;
5782         }
5783
5784         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5785         if (rc == MBX_NOT_FINISHED)
5786                 goto out_free_dmabuf;
5787         return;
5788
5789 out_free_dmabuf:
5790         kfree(mp);
5791 out_free_pmb:
5792         mempool_free(pmb, phba->mbox_mem_pool);
5793 }
5794
5795 /**
5796  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
5797  * @phba: pointer to lpfc hba data structure.
5798  * @acqe_sli: pointer to the async SLI completion queue entry.
5799  *
5800  * This routine is to handle the SLI4 asynchronous SLI events.
5801  **/
5802 static void
5803 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
5804 {
5805         char port_name;
5806         char message[128];
5807         uint8_t status;
5808         uint8_t evt_type;
5809         uint8_t operational = 0;
5810         struct temp_event temp_event_data;
5811         struct lpfc_acqe_misconfigured_event *misconfigured;
5812         struct lpfc_acqe_cgn_signal *cgn_signal;
5813         struct Scsi_Host  *shost;
5814         struct lpfc_vport **vports;
5815         int rc, i, cnt;
5816
5817         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
5818
5819         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5820                         "2901 Async SLI event - Type:%d, Event Data: x%08x "
5821                         "x%08x x%08x x%08x\n", evt_type,
5822                         acqe_sli->event_data1, acqe_sli->event_data2,
5823                         acqe_sli->reserved, acqe_sli->trailer);
5824
5825         port_name = phba->Port[0];
5826         if (port_name == 0x00)
5827                 port_name = '?'; /* get port name is empty */
5828
5829         switch (evt_type) {
5830         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
5831                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5832                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
5833                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5834
5835                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5836                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
5837                                 acqe_sli->event_data1, port_name);
5838
5839                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
5840                 shost = lpfc_shost_from_vport(phba->pport);
5841                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5842                                           sizeof(temp_event_data),
5843                                           (char *)&temp_event_data,
5844                                           SCSI_NL_VID_TYPE_PCI
5845                                           | PCI_VENDOR_ID_EMULEX);
5846                 break;
5847         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
5848                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5849                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
5850                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5851
5852                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5853                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
5854                                 acqe_sli->event_data1, port_name);
5855
5856                 shost = lpfc_shost_from_vport(phba->pport);
5857                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5858                                           sizeof(temp_event_data),
5859                                           (char *)&temp_event_data,
5860                                           SCSI_NL_VID_TYPE_PCI
5861                                           | PCI_VENDOR_ID_EMULEX);
5862                 break;
5863         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
5864                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
5865                                         &acqe_sli->event_data1;
5866
5867                 /* fetch the status for this port */
5868                 switch (phba->sli4_hba.lnk_info.lnk_no) {
5869                 case LPFC_LINK_NUMBER_0:
5870                         status = bf_get(lpfc_sli_misconfigured_port0_state,
5871                                         &misconfigured->theEvent);
5872                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
5873                                         &misconfigured->theEvent);
5874                         break;
5875                 case LPFC_LINK_NUMBER_1:
5876                         status = bf_get(lpfc_sli_misconfigured_port1_state,
5877                                         &misconfigured->theEvent);
5878                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
5879                                         &misconfigured->theEvent);
5880                         break;
5881                 case LPFC_LINK_NUMBER_2:
5882                         status = bf_get(lpfc_sli_misconfigured_port2_state,
5883                                         &misconfigured->theEvent);
5884                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
5885                                         &misconfigured->theEvent);
5886                         break;
5887                 case LPFC_LINK_NUMBER_3:
5888                         status = bf_get(lpfc_sli_misconfigured_port3_state,
5889                                         &misconfigured->theEvent);
5890                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
5891                                         &misconfigured->theEvent);
5892                         break;
5893                 default:
5894                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5895                                         "3296 "
5896                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
5897                                         "event: Invalid link %d",
5898                                         phba->sli4_hba.lnk_info.lnk_no);
5899                         return;
5900                 }
5901
5902                 /* Skip if optic state unchanged */
5903                 if (phba->sli4_hba.lnk_info.optic_state == status)
5904                         return;
5905
5906                 switch (status) {
5907                 case LPFC_SLI_EVENT_STATUS_VALID:
5908                         sprintf(message, "Physical Link is functional");
5909                         break;
5910                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
5911                         sprintf(message, "Optics faulted/incorrectly "
5912                                 "installed/not installed - Reseat optics, "
5913                                 "if issue not resolved, replace.");
5914                         break;
5915                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
5916                         sprintf(message,
5917                                 "Optics of two types installed - Remove one "
5918                                 "optic or install matching pair of optics.");
5919                         break;
5920                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
5921                         sprintf(message, "Incompatible optics - Replace with "
5922                                 "compatible optics for card to function.");
5923                         break;
5924                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
5925                         sprintf(message, "Unqualified optics - Replace with "
5926                                 "Avago optics for Warranty and Technical "
5927                                 "Support - Link is%s operational",
5928                                 (operational) ? " not" : "");
5929                         break;
5930                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
5931                         sprintf(message, "Uncertified optics - Replace with "
5932                                 "Avago-certified optics to enable link "
5933                                 "operation - Link is%s operational",
5934                                 (operational) ? " not" : "");
5935                         break;
5936                 default:
5937                         /* firmware is reporting a status we don't know about */
5938                         sprintf(message, "Unknown event status x%02x", status);
5939                         break;
5940                 }
5941
5942                 /* Issue READ_CONFIG mbox command to refresh supported speeds */
5943                 rc = lpfc_sli4_read_config(phba);
5944                 if (rc) {
5945                         phba->lmt = 0;
5946                         lpfc_printf_log(phba, KERN_ERR,
5947                                         LOG_TRACE_EVENT,
5948                                         "3194 Unable to retrieve supported "
5949                                         "speeds, rc = 0x%x\n", rc);
5950                 }
5951                 vports = lpfc_create_vport_work_array(phba);
5952                 if (vports != NULL) {
5953                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5954                                         i++) {
5955                                 shost = lpfc_shost_from_vport(vports[i]);
5956                                 lpfc_host_supported_speeds_set(shost);
5957                         }
5958                 }
5959                 lpfc_destroy_vport_work_array(phba, vports);
5960
5961                 phba->sli4_hba.lnk_info.optic_state = status;
5962                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5963                                 "3176 Port Name %c %s\n", port_name, message);
5964                 break;
5965         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
5966                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5967                                 "3192 Remote DPort Test Initiated - "
5968                                 "Event Data1:x%08x Event Data2: x%08x\n",
5969                                 acqe_sli->event_data1, acqe_sli->event_data2);
5970                 break;
5971         case LPFC_SLI_EVENT_TYPE_PORT_PARAMS_CHG:
5972                 /* Call FW to obtain active parms */
5973                 lpfc_sli4_cgn_parm_chg_evt(phba);
5974                 break;
5975         case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN:
5976                 /* Misconfigured WWN. Reports that the SLI Port is configured
5977                  * to use FA-WWN, but the attached device doesn’t support it.
5978                  * No driver action is required.
5979                  * Event Data1 - N.A, Event Data2 - N.A
5980                  */
5981                 lpfc_log_msg(phba, KERN_WARNING, LOG_SLI,
5982                              "2699 Misconfigured FA-WWN - Attached device does "
5983                              "not support FA-WWN\n");
5984                 break;
5985         case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE:
5986                 /* EEPROM failure. No driver action is required */
5987                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5988                              "2518 EEPROM failure - "
5989                              "Event Data1: x%08x Event Data2: x%08x\n",
5990                              acqe_sli->event_data1, acqe_sli->event_data2);
5991                 break;
5992         case LPFC_SLI_EVENT_TYPE_CGN_SIGNAL:
5993                 if (phba->cmf_active_mode == LPFC_CFG_OFF)
5994                         break;
5995                 cgn_signal = (struct lpfc_acqe_cgn_signal *)
5996                                         &acqe_sli->event_data1;
5997                 phba->cgn_acqe_cnt++;
5998
5999                 cnt = bf_get(lpfc_warn_acqe, cgn_signal);
6000                 atomic64_add(cnt, &phba->cgn_acqe_stat.warn);
6001                 atomic64_add(cgn_signal->alarm_cnt, &phba->cgn_acqe_stat.alarm);
6002
6003                 /* no threshold for CMF, even 1 signal will trigger an event */
6004
6005                 /* Alarm overrides warning, so check that first */
6006                 if (cgn_signal->alarm_cnt) {
6007                         if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6008                                 /* Keep track of alarm cnt for cgn_info */
6009                                 atomic_add(cgn_signal->alarm_cnt,
6010                                            &phba->cgn_fabric_alarm_cnt);
6011                                 /* Keep track of alarm cnt for CMF_SYNC_WQE */
6012                                 atomic_add(cgn_signal->alarm_cnt,
6013                                            &phba->cgn_sync_alarm_cnt);
6014                         }
6015                 } else if (cnt) {
6016                         /* signal action needs to be taken */
6017                         if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
6018                             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6019                                 /* Keep track of warning cnt for cgn_info */
6020                                 atomic_add(cnt, &phba->cgn_fabric_warn_cnt);
6021                                 /* Keep track of warning cnt for CMF_SYNC_WQE */
6022                                 atomic_add(cnt, &phba->cgn_sync_warn_cnt);
6023                         }
6024                 }
6025                 break;
6026         default:
6027                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6028                                 "3193 Unrecognized SLI event, type: 0x%x",
6029                                 evt_type);
6030                 break;
6031         }
6032 }
6033
6034 /**
6035  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
6036  * @vport: pointer to vport data structure.
6037  *
6038  * This routine is to perform Clear Virtual Link (CVL) on a vport in
6039  * response to a CVL event.
6040  *
6041  * Return the pointer to the ndlp with the vport if successful, otherwise
6042  * return NULL.
6043  **/
6044 static struct lpfc_nodelist *
6045 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
6046 {
6047         struct lpfc_nodelist *ndlp;
6048         struct Scsi_Host *shost;
6049         struct lpfc_hba *phba;
6050
6051         if (!vport)
6052                 return NULL;
6053         phba = vport->phba;
6054         if (!phba)
6055                 return NULL;
6056         ndlp = lpfc_findnode_did(vport, Fabric_DID);
6057         if (!ndlp) {
6058                 /* Cannot find existing Fabric ndlp, so allocate a new one */
6059                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
6060                 if (!ndlp)
6061                         return 0;
6062                 /* Set the node type */
6063                 ndlp->nlp_type |= NLP_FABRIC;
6064                 /* Put ndlp onto node list */
6065                 lpfc_enqueue_node(vport, ndlp);
6066         }
6067         if ((phba->pport->port_state < LPFC_FLOGI) &&
6068                 (phba->pport->port_state != LPFC_VPORT_FAILED))
6069                 return NULL;
6070         /* If virtual link is not yet instantiated ignore CVL */
6071         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
6072                 && (vport->port_state != LPFC_VPORT_FAILED))
6073                 return NULL;
6074         shost = lpfc_shost_from_vport(vport);
6075         if (!shost)
6076                 return NULL;
6077         lpfc_linkdown_port(vport);
6078         lpfc_cleanup_pending_mbox(vport);
6079         spin_lock_irq(shost->host_lock);
6080         vport->fc_flag |= FC_VPORT_CVL_RCVD;
6081         spin_unlock_irq(shost->host_lock);
6082
6083         return ndlp;
6084 }
6085
6086 /**
6087  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
6088  * @phba: pointer to lpfc hba data structure.
6089  *
6090  * This routine is to perform Clear Virtual Link (CVL) on all vports in
6091  * response to a FCF dead event.
6092  **/
6093 static void
6094 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
6095 {
6096         struct lpfc_vport **vports;
6097         int i;
6098
6099         vports = lpfc_create_vport_work_array(phba);
6100         if (vports)
6101                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
6102                         lpfc_sli4_perform_vport_cvl(vports[i]);
6103         lpfc_destroy_vport_work_array(phba, vports);
6104 }
6105
6106 /**
6107  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
6108  * @phba: pointer to lpfc hba data structure.
6109  * @acqe_fip: pointer to the async fcoe completion queue entry.
6110  *
6111  * This routine is to handle the SLI4 asynchronous fcoe event.
6112  **/
6113 static void
6114 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
6115                         struct lpfc_acqe_fip *acqe_fip)
6116 {
6117         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
6118         int rc;
6119         struct lpfc_vport *vport;
6120         struct lpfc_nodelist *ndlp;
6121         int active_vlink_present;
6122         struct lpfc_vport **vports;
6123         int i;
6124
6125         phba->fc_eventTag = acqe_fip->event_tag;
6126         phba->fcoe_eventtag = acqe_fip->event_tag;
6127         switch (event_type) {
6128         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
6129         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
6130                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
6131                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6132                                         "2546 New FCF event, evt_tag:x%x, "
6133                                         "index:x%x\n",
6134                                         acqe_fip->event_tag,
6135                                         acqe_fip->index);
6136                 else
6137                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
6138                                         LOG_DISCOVERY,
6139                                         "2788 FCF param modified event, "
6140                                         "evt_tag:x%x, index:x%x\n",
6141                                         acqe_fip->event_tag,
6142                                         acqe_fip->index);
6143                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
6144                         /*
6145                          * During period of FCF discovery, read the FCF
6146                          * table record indexed by the event to update
6147                          * FCF roundrobin failover eligible FCF bmask.
6148                          */
6149                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
6150                                         LOG_DISCOVERY,
6151                                         "2779 Read FCF (x%x) for updating "
6152                                         "roundrobin FCF failover bmask\n",
6153                                         acqe_fip->index);
6154                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
6155                 }
6156
6157                 /* If the FCF discovery is in progress, do nothing. */
6158                 spin_lock_irq(&phba->hbalock);
6159                 if (phba->hba_flag & FCF_TS_INPROG) {
6160                         spin_unlock_irq(&phba->hbalock);
6161                         break;
6162                 }
6163                 /* If fast FCF failover rescan event is pending, do nothing */
6164                 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
6165                         spin_unlock_irq(&phba->hbalock);
6166                         break;
6167                 }
6168
6169                 /* If the FCF has been in discovered state, do nothing. */
6170                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
6171                         spin_unlock_irq(&phba->hbalock);
6172                         break;
6173                 }
6174                 spin_unlock_irq(&phba->hbalock);
6175
6176                 /* Otherwise, scan the entire FCF table and re-discover SAN */
6177                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6178                                 "2770 Start FCF table scan per async FCF "
6179                                 "event, evt_tag:x%x, index:x%x\n",
6180                                 acqe_fip->event_tag, acqe_fip->index);
6181                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
6182                                                      LPFC_FCOE_FCF_GET_FIRST);
6183                 if (rc)
6184                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6185                                         "2547 Issue FCF scan read FCF mailbox "
6186                                         "command failed (x%x)\n", rc);
6187                 break;
6188
6189         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
6190                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6191                                 "2548 FCF Table full count 0x%x tag 0x%x\n",
6192                                 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
6193                                 acqe_fip->event_tag);
6194                 break;
6195
6196         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
6197                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
6198                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6199                                 "2549 FCF (x%x) disconnected from network, "
6200                                  "tag:x%x\n", acqe_fip->index,
6201                                  acqe_fip->event_tag);
6202                 /*
6203                  * If we are in the middle of FCF failover process, clear
6204                  * the corresponding FCF bit in the roundrobin bitmap.
6205                  */
6206                 spin_lock_irq(&phba->hbalock);
6207                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
6208                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
6209                         spin_unlock_irq(&phba->hbalock);
6210                         /* Update FLOGI FCF failover eligible FCF bmask */
6211                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
6212                         break;
6213                 }
6214                 spin_unlock_irq(&phba->hbalock);
6215
6216                 /* If the event is not for currently used fcf do nothing */
6217                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
6218                         break;
6219
6220                 /*
6221                  * Otherwise, request the port to rediscover the entire FCF
6222                  * table for a fast recovery from case that the current FCF
6223                  * is no longer valid as we are not in the middle of FCF
6224                  * failover process already.
6225                  */
6226                 spin_lock_irq(&phba->hbalock);
6227                 /* Mark the fast failover process in progress */
6228                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
6229                 spin_unlock_irq(&phba->hbalock);
6230
6231                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6232                                 "2771 Start FCF fast failover process due to "
6233                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
6234                                 "\n", acqe_fip->event_tag, acqe_fip->index);
6235                 rc = lpfc_sli4_redisc_fcf_table(phba);
6236                 if (rc) {
6237                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
6238                                         LOG_TRACE_EVENT,
6239                                         "2772 Issue FCF rediscover mailbox "
6240                                         "command failed, fail through to FCF "
6241                                         "dead event\n");
6242                         spin_lock_irq(&phba->hbalock);
6243                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
6244                         spin_unlock_irq(&phba->hbalock);
6245                         /*
6246                          * Last resort will fail over by treating this
6247                          * as a link down to FCF registration.
6248                          */
6249                         lpfc_sli4_fcf_dead_failthrough(phba);
6250                 } else {
6251                         /* Reset FCF roundrobin bmask for new discovery */
6252                         lpfc_sli4_clear_fcf_rr_bmask(phba);
6253                         /*
6254                          * Handling fast FCF failover to a DEAD FCF event is
6255                          * considered equalivant to receiving CVL to all vports.
6256                          */
6257                         lpfc_sli4_perform_all_vport_cvl(phba);
6258                 }
6259                 break;
6260         case LPFC_FIP_EVENT_TYPE_CVL:
6261                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
6262                 lpfc_printf_log(phba, KERN_ERR,
6263                                 LOG_TRACE_EVENT,
6264                         "2718 Clear Virtual Link Received for VPI 0x%x"
6265                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
6266
6267                 vport = lpfc_find_vport_by_vpid(phba,
6268                                                 acqe_fip->index);
6269                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
6270                 if (!ndlp)
6271                         break;
6272                 active_vlink_present = 0;
6273
6274                 vports = lpfc_create_vport_work_array(phba);
6275                 if (vports) {
6276                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
6277                                         i++) {
6278                                 if ((!(vports[i]->fc_flag &
6279                                         FC_VPORT_CVL_RCVD)) &&
6280                                         (vports[i]->port_state > LPFC_FDISC)) {
6281                                         active_vlink_present = 1;
6282                                         break;
6283                                 }
6284                         }
6285                         lpfc_destroy_vport_work_array(phba, vports);
6286                 }
6287
6288                 /*
6289                  * Don't re-instantiate if vport is marked for deletion.
6290                  * If we are here first then vport_delete is going to wait
6291                  * for discovery to complete.
6292                  */
6293                 if (!(vport->load_flag & FC_UNLOADING) &&
6294                                         active_vlink_present) {
6295                         /*
6296                          * If there are other active VLinks present,
6297                          * re-instantiate the Vlink using FDISC.
6298                          */
6299                         mod_timer(&ndlp->nlp_delayfunc,
6300                                   jiffies + msecs_to_jiffies(1000));
6301                         spin_lock_irq(&ndlp->lock);
6302                         ndlp->nlp_flag |= NLP_DELAY_TMO;
6303                         spin_unlock_irq(&ndlp->lock);
6304                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
6305                         vport->port_state = LPFC_FDISC;
6306                 } else {
6307                         /*
6308                          * Otherwise, we request port to rediscover
6309                          * the entire FCF table for a fast recovery
6310                          * from possible case that the current FCF
6311                          * is no longer valid if we are not already
6312                          * in the FCF failover process.
6313                          */
6314                         spin_lock_irq(&phba->hbalock);
6315                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
6316                                 spin_unlock_irq(&phba->hbalock);
6317                                 break;
6318                         }
6319                         /* Mark the fast failover process in progress */
6320                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
6321                         spin_unlock_irq(&phba->hbalock);
6322                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
6323                                         LOG_DISCOVERY,
6324                                         "2773 Start FCF failover per CVL, "
6325                                         "evt_tag:x%x\n", acqe_fip->event_tag);
6326                         rc = lpfc_sli4_redisc_fcf_table(phba);
6327                         if (rc) {
6328                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
6329                                                 LOG_TRACE_EVENT,
6330                                                 "2774 Issue FCF rediscover "
6331                                                 "mailbox command failed, "
6332                                                 "through to CVL event\n");
6333                                 spin_lock_irq(&phba->hbalock);
6334                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
6335                                 spin_unlock_irq(&phba->hbalock);
6336                                 /*
6337                                  * Last resort will be re-try on the
6338                                  * the current registered FCF entry.
6339                                  */
6340                                 lpfc_retry_pport_discovery(phba);
6341                         } else
6342                                 /*
6343                                  * Reset FCF roundrobin bmask for new
6344                                  * discovery.
6345                                  */
6346                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
6347                 }
6348                 break;
6349         default:
6350                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6351                                 "0288 Unknown FCoE event type 0x%x event tag "
6352                                 "0x%x\n", event_type, acqe_fip->event_tag);
6353                 break;
6354         }
6355 }
6356
6357 /**
6358  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
6359  * @phba: pointer to lpfc hba data structure.
6360  * @acqe_dcbx: pointer to the async dcbx completion queue entry.
6361  *
6362  * This routine is to handle the SLI4 asynchronous dcbx event.
6363  **/
6364 static void
6365 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
6366                          struct lpfc_acqe_dcbx *acqe_dcbx)
6367 {
6368         phba->fc_eventTag = acqe_dcbx->event_tag;
6369         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6370                         "0290 The SLI4 DCBX asynchronous event is not "
6371                         "handled yet\n");
6372 }
6373
6374 /**
6375  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
6376  * @phba: pointer to lpfc hba data structure.
6377  * @acqe_grp5: pointer to the async grp5 completion queue entry.
6378  *
6379  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
6380  * is an asynchronous notified of a logical link speed change.  The Port
6381  * reports the logical link speed in units of 10Mbps.
6382  **/
6383 static void
6384 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
6385                          struct lpfc_acqe_grp5 *acqe_grp5)
6386 {
6387         uint16_t prev_ll_spd;
6388
6389         phba->fc_eventTag = acqe_grp5->event_tag;
6390         phba->fcoe_eventtag = acqe_grp5->event_tag;
6391         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
6392         phba->sli4_hba.link_state.logical_speed =
6393                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
6394         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6395                         "2789 GRP5 Async Event: Updating logical link speed "
6396                         "from %dMbps to %dMbps\n", prev_ll_spd,
6397                         phba->sli4_hba.link_state.logical_speed);
6398 }
6399
6400 /**
6401  * lpfc_sli4_async_cmstat_evt - Process the asynchronous cmstat event
6402  * @phba: pointer to lpfc hba data structure.
6403  *
6404  * This routine is to handle the SLI4 asynchronous cmstat event. A cmstat event
6405  * is an asynchronous notification of a request to reset CM stats.
6406  **/
6407 static void
6408 lpfc_sli4_async_cmstat_evt(struct lpfc_hba *phba)
6409 {
6410         if (!phba->cgn_i)
6411                 return;
6412         lpfc_init_congestion_stat(phba);
6413 }
6414
6415 /**
6416  * lpfc_cgn_params_val - Validate FW congestion parameters.
6417  * @phba: pointer to lpfc hba data structure.
6418  * @p_cfg_param: pointer to FW provided congestion parameters.
6419  *
6420  * This routine validates the congestion parameters passed
6421  * by the FW to the driver via an ACQE event.
6422  **/
6423 static void
6424 lpfc_cgn_params_val(struct lpfc_hba *phba, struct lpfc_cgn_param *p_cfg_param)
6425 {
6426         spin_lock_irq(&phba->hbalock);
6427
6428         if (!lpfc_rangecheck(p_cfg_param->cgn_param_mode, LPFC_CFG_OFF,
6429                              LPFC_CFG_MONITOR)) {
6430                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
6431                                 "6225 CMF mode param out of range: %d\n",
6432                                  p_cfg_param->cgn_param_mode);
6433                 p_cfg_param->cgn_param_mode = LPFC_CFG_OFF;
6434         }
6435
6436         spin_unlock_irq(&phba->hbalock);
6437 }
6438
6439 /**
6440  * lpfc_cgn_params_parse - Process a FW cong parm change event
6441  * @phba: pointer to lpfc hba data structure.
6442  * @p_cgn_param: pointer to a data buffer with the FW cong params.
6443  * @len: the size of pdata in bytes.
6444  *
6445  * This routine validates the congestion management buffer signature
6446  * from the FW, validates the contents and makes corrections for
6447  * valid, in-range values.  If the signature magic is correct and
6448  * after parameter validation, the contents are copied to the driver's
6449  * @phba structure. If the magic is incorrect, an error message is
6450  * logged.
6451  **/
6452 static void
6453 lpfc_cgn_params_parse(struct lpfc_hba *phba,
6454                       struct lpfc_cgn_param *p_cgn_param, uint32_t len)
6455 {
6456         uint32_t oldmode;
6457
6458         /* Make sure the FW has encoded the correct magic number to
6459          * validate the congestion parameter in FW memory.
6460          */
6461         if (p_cgn_param->cgn_param_magic == LPFC_CFG_PARAM_MAGIC_NUM) {
6462                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
6463                                 "4668 FW cgn parm buffer data: "
6464                                 "magic 0x%x version %d mode %d "
6465                                 "level0 %d level1 %d "
6466                                 "level2 %d byte13 %d "
6467                                 "byte14 %d byte15 %d "
6468                                 "byte11 %d byte12 %d activeMode %d\n",
6469                                 p_cgn_param->cgn_param_magic,
6470                                 p_cgn_param->cgn_param_version,
6471                                 p_cgn_param->cgn_param_mode,
6472                                 p_cgn_param->cgn_param_level0,
6473                                 p_cgn_param->cgn_param_level1,
6474                                 p_cgn_param->cgn_param_level2,
6475                                 p_cgn_param->byte13,
6476                                 p_cgn_param->byte14,
6477                                 p_cgn_param->byte15,
6478                                 p_cgn_param->byte11,
6479                                 p_cgn_param->byte12,
6480                                 phba->cmf_active_mode);
6481
6482                 oldmode = phba->cmf_active_mode;
6483
6484                 /* Any parameters out of range are corrected to defaults
6485                  * by this routine.  No need to fail.
6486                  */
6487                 lpfc_cgn_params_val(phba, p_cgn_param);
6488
6489                 /* Parameters are verified, move them into driver storage */
6490                 spin_lock_irq(&phba->hbalock);
6491                 memcpy(&phba->cgn_p, p_cgn_param,
6492                        sizeof(struct lpfc_cgn_param));
6493
6494                 spin_unlock_irq(&phba->hbalock);
6495
6496                 phba->cmf_active_mode = phba->cgn_p.cgn_param_mode;
6497
6498                 switch (oldmode) {
6499                 case LPFC_CFG_OFF:
6500                         if (phba->cgn_p.cgn_param_mode != LPFC_CFG_OFF) {
6501                                 /* Turning CMF on */
6502                                 lpfc_cmf_start(phba);
6503
6504                                 if (phba->link_state >= LPFC_LINK_UP) {
6505                                         phba->cgn_reg_fpin =
6506                                                 phba->cgn_init_reg_fpin;
6507                                         phba->cgn_reg_signal =
6508                                                 phba->cgn_init_reg_signal;
6509                                         lpfc_issue_els_edc(phba->pport, 0);
6510                                 }
6511                         }
6512                         break;
6513                 case LPFC_CFG_MANAGED:
6514                         switch (phba->cgn_p.cgn_param_mode) {
6515                         case LPFC_CFG_OFF:
6516                                 /* Turning CMF off */
6517                                 lpfc_cmf_stop(phba);
6518                                 if (phba->link_state >= LPFC_LINK_UP)
6519                                         lpfc_issue_els_edc(phba->pport, 0);
6520                                 break;
6521                         case LPFC_CFG_MONITOR:
6522                                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
6523                                                 "4661 Switch from MANAGED to "
6524                                                 "`MONITOR mode\n");
6525                                 phba->cmf_max_bytes_per_interval =
6526                                         phba->cmf_link_byte_count;
6527
6528                                 /* Resume blocked IO - unblock on workqueue */
6529                                 queue_work(phba->wq,
6530                                            &phba->unblock_request_work);
6531                                 break;
6532                         }
6533                         break;
6534                 case LPFC_CFG_MONITOR:
6535                         switch (phba->cgn_p.cgn_param_mode) {
6536                         case LPFC_CFG_OFF:
6537                                 /* Turning CMF off */
6538                                 lpfc_cmf_stop(phba);
6539                                 if (phba->link_state >= LPFC_LINK_UP)
6540                                         lpfc_issue_els_edc(phba->pport, 0);
6541                                 break;
6542                         case LPFC_CFG_MANAGED:
6543                                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
6544                                                 "4662 Switch from MONITOR to "
6545                                                 "MANAGED mode\n");
6546                                 lpfc_cmf_signal_init(phba);
6547                                 break;
6548                         }
6549                         break;
6550                 }
6551         } else {
6552                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
6553                                 "4669 FW cgn parm buf wrong magic 0x%x "
6554                                 "version %d\n", p_cgn_param->cgn_param_magic,
6555                                 p_cgn_param->cgn_param_version);
6556         }
6557 }
6558
6559 /**
6560  * lpfc_sli4_cgn_params_read - Read and Validate FW congestion parameters.
6561  * @phba: pointer to lpfc hba data structure.
6562  *
6563  * This routine issues a read_object mailbox command to
6564  * get the congestion management parameters from the FW
6565  * parses it and updates the driver maintained values.
6566  *
6567  * Returns
6568  *  0     if the object was empty
6569  *  -Eval if an error was encountered
6570  *  Count if bytes were read from object
6571  **/
6572 int
6573 lpfc_sli4_cgn_params_read(struct lpfc_hba *phba)
6574 {
6575         int ret = 0;
6576         struct lpfc_cgn_param *p_cgn_param = NULL;
6577         u32 *pdata = NULL;
6578         u32 len = 0;
6579
6580         /* Find out if the FW has a new set of congestion parameters. */
6581         len = sizeof(struct lpfc_cgn_param);
6582         pdata = kzalloc(len, GFP_KERNEL);
6583         ret = lpfc_read_object(phba, (char *)LPFC_PORT_CFG_NAME,
6584                                pdata, len);
6585
6586         /* 0 means no data.  A negative means error.  A positive means
6587          * bytes were copied.
6588          */
6589         if (!ret) {
6590                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
6591                                 "4670 CGN RD OBJ returns no data\n");
6592                 goto rd_obj_err;
6593         } else if (ret < 0) {
6594                 /* Some error.  Just exit and return it to the caller.*/
6595                 goto rd_obj_err;
6596         }
6597
6598         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
6599                         "6234 READ CGN PARAMS Successful %d\n", len);
6600
6601         /* Parse data pointer over len and update the phba congestion
6602          * parameters with values passed back.  The receive rate values
6603          * may have been altered in FW, but take no action here.
6604          */
6605         p_cgn_param = (struct lpfc_cgn_param *)pdata;
6606         lpfc_cgn_params_parse(phba, p_cgn_param, len);
6607
6608  rd_obj_err:
6609         kfree(pdata);
6610         return ret;
6611 }
6612
6613 /**
6614  * lpfc_sli4_cgn_parm_chg_evt - Process a FW congestion param change event
6615  * @phba: pointer to lpfc hba data structure.
6616  *
6617  * The FW generated Async ACQE SLI event calls this routine when
6618  * the event type is an SLI Internal Port Event and the Event Code
6619  * indicates a change to the FW maintained congestion parameters.
6620  *
6621  * This routine executes a Read_Object mailbox call to obtain the
6622  * current congestion parameters maintained in FW and corrects
6623  * the driver's active congestion parameters.
6624  *
6625  * The acqe event is not passed because there is no further data
6626  * required.
6627  *
6628  * Returns nonzero error if event processing encountered an error.
6629  * Zero otherwise for success.
6630  **/
6631 static int
6632 lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *phba)
6633 {
6634         int ret = 0;
6635
6636         if (!phba->sli4_hba.pc_sli4_params.cmf) {
6637                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
6638                                 "4664 Cgn Evt when E2E off. Drop event\n");
6639                 return -EACCES;
6640         }
6641
6642         /* If the event is claiming an empty object, it's ok.  A write
6643          * could have cleared it.  Only error is a negative return
6644          * status.
6645          */
6646         ret = lpfc_sli4_cgn_params_read(phba);
6647         if (ret < 0) {
6648                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
6649                                 "4667 Error reading Cgn Params (%d)\n",
6650                                 ret);
6651         } else if (!ret) {
6652                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
6653                                 "4673 CGN Event empty object.\n");
6654         }
6655         return ret;
6656 }
6657
6658 /**
6659  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
6660  * @phba: pointer to lpfc hba data structure.
6661  *
6662  * This routine is invoked by the worker thread to process all the pending
6663  * SLI4 asynchronous events.
6664  **/
6665 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
6666 {
6667         struct lpfc_cq_event *cq_event;
6668         unsigned long iflags;
6669
6670         /* First, declare the async event has been handled */
6671         spin_lock_irqsave(&phba->hbalock, iflags);
6672         phba->hba_flag &= ~ASYNC_EVENT;
6673         spin_unlock_irqrestore(&phba->hbalock, iflags);
6674
6675         /* Now, handle all the async events */
6676         spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
6677         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
6678                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
6679                                  cq_event, struct lpfc_cq_event, list);
6680                 spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock,
6681                                        iflags);
6682
6683                 /* Process the asynchronous event */
6684                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
6685                 case LPFC_TRAILER_CODE_LINK:
6686                         lpfc_sli4_async_link_evt(phba,
6687                                                  &cq_event->cqe.acqe_link);
6688                         break;
6689                 case LPFC_TRAILER_CODE_FCOE:
6690                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
6691                         break;
6692                 case LPFC_TRAILER_CODE_DCBX:
6693                         lpfc_sli4_async_dcbx_evt(phba,
6694                                                  &cq_event->cqe.acqe_dcbx);
6695                         break;
6696                 case LPFC_TRAILER_CODE_GRP5:
6697                         lpfc_sli4_async_grp5_evt(phba,
6698                                                  &cq_event->cqe.acqe_grp5);
6699                         break;
6700                 case LPFC_TRAILER_CODE_FC:
6701                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
6702                         break;
6703                 case LPFC_TRAILER_CODE_SLI:
6704                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
6705                         break;
6706                 case LPFC_TRAILER_CODE_CMSTAT:
6707                         lpfc_sli4_async_cmstat_evt(phba);
6708                         break;
6709                 default:
6710                         lpfc_printf_log(phba, KERN_ERR,
6711                                         LOG_TRACE_EVENT,
6712                                         "1804 Invalid asynchronous event code: "
6713                                         "x%x\n", bf_get(lpfc_trailer_code,
6714                                         &cq_event->cqe.mcqe_cmpl));
6715                         break;
6716                 }
6717
6718                 /* Free the completion event processed to the free pool */
6719                 lpfc_sli4_cq_event_release(phba, cq_event);
6720                 spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
6721         }
6722         spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
6723 }
6724
6725 /**
6726  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
6727  * @phba: pointer to lpfc hba data structure.
6728  *
6729  * This routine is invoked by the worker thread to process FCF table
6730  * rediscovery pending completion event.
6731  **/
6732 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
6733 {
6734         int rc;
6735
6736         spin_lock_irq(&phba->hbalock);
6737         /* Clear FCF rediscovery timeout event */
6738         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
6739         /* Clear driver fast failover FCF record flag */
6740         phba->fcf.failover_rec.flag = 0;
6741         /* Set state for FCF fast failover */
6742         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
6743         spin_unlock_irq(&phba->hbalock);
6744
6745         /* Scan FCF table from the first entry to re-discover SAN */
6746         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6747                         "2777 Start post-quiescent FCF table scan\n");
6748         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
6749         if (rc)
6750                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6751                                 "2747 Issue FCF scan read FCF mailbox "
6752                                 "command failed 0x%x\n", rc);
6753 }
6754
6755 /**
6756  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
6757  * @phba: pointer to lpfc hba data structure.
6758  * @dev_grp: The HBA PCI-Device group number.
6759  *
6760  * This routine is invoked to set up the per HBA PCI-Device group function
6761  * API jump table entries.
6762  *
6763  * Return: 0 if success, otherwise -ENODEV
6764  **/
6765 int
6766 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6767 {
6768         int rc;
6769
6770         /* Set up lpfc PCI-device group */
6771         phba->pci_dev_grp = dev_grp;
6772
6773         /* The LPFC_PCI_DEV_OC uses SLI4 */
6774         if (dev_grp == LPFC_PCI_DEV_OC)
6775                 phba->sli_rev = LPFC_SLI_REV4;
6776
6777         /* Set up device INIT API function jump table */
6778         rc = lpfc_init_api_table_setup(phba, dev_grp);
6779         if (rc)
6780                 return -ENODEV;
6781         /* Set up SCSI API function jump table */
6782         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
6783         if (rc)
6784                 return -ENODEV;
6785         /* Set up SLI API function jump table */
6786         rc = lpfc_sli_api_table_setup(phba, dev_grp);
6787         if (rc)
6788                 return -ENODEV;
6789         /* Set up MBOX API function jump table */
6790         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
6791         if (rc)
6792                 return -ENODEV;
6793
6794         return 0;
6795 }
6796
6797 /**
6798  * lpfc_log_intr_mode - Log the active interrupt mode
6799  * @phba: pointer to lpfc hba data structure.
6800  * @intr_mode: active interrupt mode adopted.
6801  *
6802  * This routine it invoked to log the currently used active interrupt mode
6803  * to the device.
6804  **/
6805 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
6806 {
6807         switch (intr_mode) {
6808         case 0:
6809                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6810                                 "0470 Enable INTx interrupt mode.\n");
6811                 break;
6812         case 1:
6813                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6814                                 "0481 Enabled MSI interrupt mode.\n");
6815                 break;
6816         case 2:
6817                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6818                                 "0480 Enabled MSI-X interrupt mode.\n");
6819                 break;
6820         default:
6821                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6822                                 "0482 Illegal interrupt mode.\n");
6823                 break;
6824         }
6825         return;
6826 }
6827
6828 /**
6829  * lpfc_enable_pci_dev - Enable a generic PCI device.
6830  * @phba: pointer to lpfc hba data structure.
6831  *
6832  * This routine is invoked to enable the PCI device that is common to all
6833  * PCI devices.
6834  *
6835  * Return codes
6836  *      0 - successful
6837  *      other values - error
6838  **/
6839 static int
6840 lpfc_enable_pci_dev(struct lpfc_hba *phba)
6841 {
6842         struct pci_dev *pdev;
6843
6844         /* Obtain PCI device reference */
6845         if (!phba->pcidev)
6846                 goto out_error;
6847         else
6848                 pdev = phba->pcidev;
6849         /* Enable PCI device */
6850         if (pci_enable_device_mem(pdev))
6851                 goto out_error;
6852         /* Request PCI resource for the device */
6853         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
6854                 goto out_disable_device;
6855         /* Set up device as PCI master and save state for EEH */
6856         pci_set_master(pdev);
6857         pci_try_set_mwi(pdev);
6858         pci_save_state(pdev);
6859
6860         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
6861         if (pci_is_pcie(pdev))
6862                 pdev->needs_freset = 1;
6863
6864         return 0;
6865
6866 out_disable_device:
6867         pci_disable_device(pdev);
6868 out_error:
6869         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6870                         "1401 Failed to enable pci device\n");
6871         return -ENODEV;
6872 }
6873
6874 /**
6875  * lpfc_disable_pci_dev - Disable a generic PCI device.
6876  * @phba: pointer to lpfc hba data structure.
6877  *
6878  * This routine is invoked to disable the PCI device that is common to all
6879  * PCI devices.
6880  **/
6881 static void
6882 lpfc_disable_pci_dev(struct lpfc_hba *phba)
6883 {
6884         struct pci_dev *pdev;
6885
6886         /* Obtain PCI device reference */
6887         if (!phba->pcidev)
6888                 return;
6889         else
6890                 pdev = phba->pcidev;
6891         /* Release PCI resource and disable PCI device */
6892         pci_release_mem_regions(pdev);
6893         pci_disable_device(pdev);
6894
6895         return;
6896 }
6897
6898 /**
6899  * lpfc_reset_hba - Reset a hba
6900  * @phba: pointer to lpfc hba data structure.
6901  *
6902  * This routine is invoked to reset a hba device. It brings the HBA
6903  * offline, performs a board restart, and then brings the board back
6904  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
6905  * on outstanding mailbox commands.
6906  **/
6907 void
6908 lpfc_reset_hba(struct lpfc_hba *phba)
6909 {
6910         /* If resets are disabled then set error state and return. */
6911         if (!phba->cfg_enable_hba_reset) {
6912                 phba->link_state = LPFC_HBA_ERROR;
6913                 return;
6914         }
6915
6916         /* If not LPFC_SLI_ACTIVE, force all IO to be flushed */
6917         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) {
6918                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
6919         } else {
6920                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
6921                 lpfc_sli_flush_io_rings(phba);
6922         }
6923         lpfc_offline(phba);
6924         lpfc_sli_brdrestart(phba);
6925         lpfc_online(phba);
6926         lpfc_unblock_mgmt_io(phba);
6927 }
6928
6929 /**
6930  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
6931  * @phba: pointer to lpfc hba data structure.
6932  *
6933  * This function enables the PCI SR-IOV virtual functions to a physical
6934  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6935  * enable the number of virtual functions to the physical function. As
6936  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6937  * API call does not considered as an error condition for most of the device.
6938  **/
6939 uint16_t
6940 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
6941 {
6942         struct pci_dev *pdev = phba->pcidev;
6943         uint16_t nr_virtfn;
6944         int pos;
6945
6946         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
6947         if (pos == 0)
6948                 return 0;
6949
6950         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
6951         return nr_virtfn;
6952 }
6953
6954 /**
6955  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
6956  * @phba: pointer to lpfc hba data structure.
6957  * @nr_vfn: number of virtual functions to be enabled.
6958  *
6959  * This function enables the PCI SR-IOV virtual functions to a physical
6960  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6961  * enable the number of virtual functions to the physical function. As
6962  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6963  * API call does not considered as an error condition for most of the device.
6964  **/
6965 int
6966 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
6967 {
6968         struct pci_dev *pdev = phba->pcidev;
6969         uint16_t max_nr_vfn;
6970         int rc;
6971
6972         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
6973         if (nr_vfn > max_nr_vfn) {
6974                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6975                                 "3057 Requested vfs (%d) greater than "
6976                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
6977                 return -EINVAL;
6978         }
6979
6980         rc = pci_enable_sriov(pdev, nr_vfn);
6981         if (rc) {
6982                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6983                                 "2806 Failed to enable sriov on this device "
6984                                 "with vfn number nr_vf:%d, rc:%d\n",
6985                                 nr_vfn, rc);
6986         } else
6987                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6988                                 "2807 Successful enable sriov on this device "
6989                                 "with vfn number nr_vf:%d\n", nr_vfn);
6990         return rc;
6991 }
6992
6993 static void
6994 lpfc_unblock_requests_work(struct work_struct *work)
6995 {
6996         struct lpfc_hba *phba = container_of(work, struct lpfc_hba,
6997                                              unblock_request_work);
6998
6999         lpfc_unblock_requests(phba);
7000 }
7001
7002 /**
7003  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
7004  * @phba: pointer to lpfc hba data structure.
7005  *
7006  * This routine is invoked to set up the driver internal resources before the
7007  * device specific resource setup to support the HBA device it attached to.
7008  *
7009  * Return codes
7010  *      0 - successful
7011  *      other values - error
7012  **/
7013 static int
7014 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
7015 {
7016         struct lpfc_sli *psli = &phba->sli;
7017
7018         /*
7019          * Driver resources common to all SLI revisions
7020          */
7021         atomic_set(&phba->fast_event_count, 0);
7022         atomic_set(&phba->dbg_log_idx, 0);
7023         atomic_set(&phba->dbg_log_cnt, 0);
7024         atomic_set(&phba->dbg_log_dmping, 0);
7025         spin_lock_init(&phba->hbalock);
7026
7027         /* Initialize port_list spinlock */
7028         spin_lock_init(&phba->port_list_lock);
7029         INIT_LIST_HEAD(&phba->port_list);
7030
7031         INIT_LIST_HEAD(&phba->work_list);
7032         init_waitqueue_head(&phba->wait_4_mlo_m_q);
7033
7034         /* Initialize the wait queue head for the kernel thread */
7035         init_waitqueue_head(&phba->work_waitq);
7036
7037         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7038                         "1403 Protocols supported %s %s %s\n",
7039                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
7040                                 "SCSI" : " "),
7041                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
7042                                 "NVME" : " "),
7043                         (phba->nvmet_support ? "NVMET" : " "));
7044
7045         /* Initialize the IO buffer list used by driver for SLI3 SCSI */
7046         spin_lock_init(&phba->scsi_buf_list_get_lock);
7047         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
7048         spin_lock_init(&phba->scsi_buf_list_put_lock);
7049         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
7050
7051         /* Initialize the fabric iocb list */
7052         INIT_LIST_HEAD(&phba->fabric_iocb_list);
7053
7054         /* Initialize list to save ELS buffers */
7055         INIT_LIST_HEAD(&phba->elsbuf);
7056
7057         /* Initialize FCF connection rec list */
7058         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
7059
7060         /* Initialize OAS configuration list */
7061         spin_lock_init(&phba->devicelock);
7062         INIT_LIST_HEAD(&phba->luns);
7063
7064         /* MBOX heartbeat timer */
7065         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
7066         /* Fabric block timer */
7067         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
7068         /* EA polling mode timer */
7069         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
7070         /* Heartbeat timer */
7071         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
7072
7073         INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
7074
7075         INIT_DELAYED_WORK(&phba->idle_stat_delay_work,
7076                           lpfc_idle_stat_delay_work);
7077         INIT_WORK(&phba->unblock_request_work, lpfc_unblock_requests_work);
7078         return 0;
7079 }
7080
7081 /**
7082  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
7083  * @phba: pointer to lpfc hba data structure.
7084  *
7085  * This routine is invoked to set up the driver internal resources specific to
7086  * support the SLI-3 HBA device it attached to.
7087  *
7088  * Return codes
7089  * 0 - successful
7090  * other values - error
7091  **/
7092 static int
7093 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
7094 {
7095         int rc, entry_sz;
7096
7097         /*
7098          * Initialize timers used by driver
7099          */
7100
7101         /* FCP polling mode timer */
7102         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
7103
7104         /* Host attention work mask setup */
7105         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
7106         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
7107
7108         /* Get all the module params for configuring this host */
7109         lpfc_get_cfgparam(phba);
7110         /* Set up phase-1 common device driver resources */
7111
7112         rc = lpfc_setup_driver_resource_phase1(phba);
7113         if (rc)
7114                 return -ENODEV;
7115
7116         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
7117                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
7118                 /* check for menlo minimum sg count */
7119                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
7120                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
7121         }
7122
7123         if (!phba->sli.sli3_ring)
7124                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
7125                                               sizeof(struct lpfc_sli_ring),
7126                                               GFP_KERNEL);
7127         if (!phba->sli.sli3_ring)
7128                 return -ENOMEM;
7129
7130         /*
7131          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
7132          * used to create the sg_dma_buf_pool must be dynamically calculated.
7133          */
7134
7135         if (phba->sli_rev == LPFC_SLI_REV4)
7136                 entry_sz = sizeof(struct sli4_sge);
7137         else
7138                 entry_sz = sizeof(struct ulp_bde64);
7139
7140         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
7141         if (phba->cfg_enable_bg) {
7142                 /*
7143                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
7144                  * the FCP rsp, and a BDE for each. Sice we have no control
7145                  * over how many protection data segments the SCSI Layer
7146                  * will hand us (ie: there could be one for every block
7147                  * in the IO), we just allocate enough BDEs to accomidate
7148                  * our max amount and we need to limit lpfc_sg_seg_cnt to
7149                  * minimize the risk of running out.
7150                  */
7151                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7152                         sizeof(struct fcp_rsp) +
7153                         (LPFC_MAX_SG_SEG_CNT * entry_sz);
7154
7155                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
7156                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
7157
7158                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
7159                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
7160         } else {
7161                 /*
7162                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
7163                  * the FCP rsp, a BDE for each, and a BDE for up to
7164                  * cfg_sg_seg_cnt data segments.
7165                  */
7166                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7167                         sizeof(struct fcp_rsp) +
7168                         ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
7169
7170                 /* Total BDEs in BPL for scsi_sg_list */
7171                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
7172         }
7173
7174         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
7175                         "9088 INIT sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
7176                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
7177                         phba->cfg_total_seg_cnt);
7178
7179         phba->max_vpi = LPFC_MAX_VPI;
7180         /* This will be set to correct value after config_port mbox */
7181         phba->max_vports = 0;
7182
7183         /*
7184          * Initialize the SLI Layer to run with lpfc HBAs.
7185          */
7186         lpfc_sli_setup(phba);
7187         lpfc_sli_queue_init(phba);
7188
7189         /* Allocate device driver memory */
7190         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
7191                 return -ENOMEM;
7192
7193         phba->lpfc_sg_dma_buf_pool =
7194                 dma_pool_create("lpfc_sg_dma_buf_pool",
7195                                 &phba->pcidev->dev, phba->cfg_sg_dma_buf_size,
7196                                 BPL_ALIGN_SZ, 0);
7197
7198         if (!phba->lpfc_sg_dma_buf_pool)
7199                 goto fail_free_mem;
7200
7201         phba->lpfc_cmd_rsp_buf_pool =
7202                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
7203                                         &phba->pcidev->dev,
7204                                         sizeof(struct fcp_cmnd) +
7205                                         sizeof(struct fcp_rsp),
7206                                         BPL_ALIGN_SZ, 0);
7207
7208         if (!phba->lpfc_cmd_rsp_buf_pool)
7209                 goto fail_free_dma_buf_pool;
7210
7211         /*
7212          * Enable sr-iov virtual functions if supported and configured
7213          * through the module parameter.
7214          */
7215         if (phba->cfg_sriov_nr_virtfn > 0) {
7216                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
7217                                                  phba->cfg_sriov_nr_virtfn);
7218                 if (rc) {
7219                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7220                                         "2808 Requested number of SR-IOV "
7221                                         "virtual functions (%d) is not "
7222                                         "supported\n",
7223                                         phba->cfg_sriov_nr_virtfn);
7224                         phba->cfg_sriov_nr_virtfn = 0;
7225                 }
7226         }
7227
7228         return 0;
7229
7230 fail_free_dma_buf_pool:
7231         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
7232         phba->lpfc_sg_dma_buf_pool = NULL;
7233 fail_free_mem:
7234         lpfc_mem_free(phba);
7235         return -ENOMEM;
7236 }
7237
7238 /**
7239  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
7240  * @phba: pointer to lpfc hba data structure.
7241  *
7242  * This routine is invoked to unset the driver internal resources set up
7243  * specific for supporting the SLI-3 HBA device it attached to.
7244  **/
7245 static void
7246 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
7247 {
7248         /* Free device driver memory allocated */
7249         lpfc_mem_free_all(phba);
7250
7251         return;
7252 }
7253
7254 /**
7255  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
7256  * @phba: pointer to lpfc hba data structure.
7257  *
7258  * This routine is invoked to set up the driver internal resources specific to
7259  * support the SLI-4 HBA device it attached to.
7260  *
7261  * Return codes
7262  *      0 - successful
7263  *      other values - error
7264  **/
7265 static int
7266 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
7267 {
7268         LPFC_MBOXQ_t *mboxq;
7269         MAILBOX_t *mb;
7270         int rc, i, max_buf_size;
7271         int longs;
7272         int extra;
7273         uint64_t wwn;
7274         u32 if_type;
7275         u32 if_fam;
7276
7277         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7278         phba->sli4_hba.num_possible_cpu = cpumask_last(cpu_possible_mask) + 1;
7279         phba->sli4_hba.curr_disp_cpu = 0;
7280
7281         /* Get all the module params for configuring this host */
7282         lpfc_get_cfgparam(phba);
7283
7284         /* Set up phase-1 common device driver resources */
7285         rc = lpfc_setup_driver_resource_phase1(phba);
7286         if (rc)
7287                 return -ENODEV;
7288
7289         /* Before proceed, wait for POST done and device ready */
7290         rc = lpfc_sli4_post_status_check(phba);
7291         if (rc)
7292                 return -ENODEV;
7293
7294         /* Allocate all driver workqueues here */
7295
7296         /* The lpfc_wq workqueue for deferred irq use */
7297         phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
7298
7299         /*
7300          * Initialize timers used by driver
7301          */
7302
7303         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
7304
7305         /* FCF rediscover timer */
7306         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
7307
7308         /* CMF congestion timer */
7309         hrtimer_init(&phba->cmf_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
7310         phba->cmf_timer.function = lpfc_cmf_timer;
7311
7312         /*
7313          * Control structure for handling external multi-buffer mailbox
7314          * command pass-through.
7315          */
7316         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
7317                 sizeof(struct lpfc_mbox_ext_buf_ctx));
7318         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
7319
7320         phba->max_vpi = LPFC_MAX_VPI;
7321
7322         /* This will be set to correct value after the read_config mbox */
7323         phba->max_vports = 0;
7324
7325         /* Program the default value of vlan_id and fc_map */
7326         phba->valid_vlan = 0;
7327         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
7328         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
7329         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
7330
7331         /*
7332          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
7333          * we will associate a new ring, for each EQ/CQ/WQ tuple.
7334          * The WQ create will allocate the ring.
7335          */
7336
7337         /* Initialize buffer queue management fields */
7338         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
7339         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
7340         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
7341
7342         /* for VMID idle timeout if VMID is enabled */
7343         if (lpfc_is_vmid_enabled(phba))
7344                 timer_setup(&phba->inactive_vmid_poll, lpfc_vmid_poll, 0);
7345
7346         /*
7347          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
7348          */
7349         /* Initialize the Abort buffer list used by driver */
7350         spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock);
7351         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_io_buf_list);
7352
7353         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
7354                 /* Initialize the Abort nvme buffer list used by driver */
7355                 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
7356                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
7357                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
7358                 spin_lock_init(&phba->sli4_hba.t_active_list_lock);
7359                 INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list);
7360         }
7361
7362         /* This abort list used by worker thread */
7363         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
7364         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
7365         spin_lock_init(&phba->sli4_hba.asynce_list_lock);
7366         spin_lock_init(&phba->sli4_hba.els_xri_abrt_list_lock);
7367
7368         /*
7369          * Initialize driver internal slow-path work queues
7370          */
7371
7372         /* Driver internel slow-path CQ Event pool */
7373         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
7374         /* Response IOCB work queue list */
7375         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
7376         /* Asynchronous event CQ Event work queue list */
7377         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
7378         /* Slow-path XRI aborted CQ Event work queue list */
7379         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
7380         /* Receive queue CQ Event work queue list */
7381         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
7382
7383         /* Initialize extent block lists. */
7384         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
7385         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
7386         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
7387         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
7388
7389         /* Initialize mboxq lists. If the early init routines fail
7390          * these lists need to be correctly initialized.
7391          */
7392         INIT_LIST_HEAD(&phba->sli.mboxq);
7393         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
7394
7395         /* initialize optic_state to 0xFF */
7396         phba->sli4_hba.lnk_info.optic_state = 0xff;
7397
7398         /* Allocate device driver memory */
7399         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
7400         if (rc)
7401                 return -ENOMEM;
7402
7403         /* IF Type 2 ports get initialized now. */
7404         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
7405             LPFC_SLI_INTF_IF_TYPE_2) {
7406                 rc = lpfc_pci_function_reset(phba);
7407                 if (unlikely(rc)) {
7408                         rc = -ENODEV;
7409                         goto out_free_mem;
7410                 }
7411                 phba->temp_sensor_support = 1;
7412         }
7413
7414         /* Create the bootstrap mailbox command */
7415         rc = lpfc_create_bootstrap_mbox(phba);
7416         if (unlikely(rc))
7417                 goto out_free_mem;
7418
7419         /* Set up the host's endian order with the device. */
7420         rc = lpfc_setup_endian_order(phba);
7421         if (unlikely(rc))
7422                 goto out_free_bsmbx;
7423
7424         /* Set up the hba's configuration parameters. */
7425         rc = lpfc_sli4_read_config(phba);
7426         if (unlikely(rc))
7427                 goto out_free_bsmbx;
7428         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
7429         if (unlikely(rc))
7430                 goto out_free_bsmbx;
7431
7432         /* IF Type 0 ports get initialized now. */
7433         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
7434             LPFC_SLI_INTF_IF_TYPE_0) {
7435                 rc = lpfc_pci_function_reset(phba);
7436                 if (unlikely(rc))
7437                         goto out_free_bsmbx;
7438         }
7439
7440         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7441                                                        GFP_KERNEL);
7442         if (!mboxq) {
7443                 rc = -ENOMEM;
7444                 goto out_free_bsmbx;
7445         }
7446
7447         /* Check for NVMET being configured */
7448         phba->nvmet_support = 0;
7449         if (lpfc_enable_nvmet_cnt) {
7450
7451                 /* First get WWN of HBA instance */
7452                 lpfc_read_nv(phba, mboxq);
7453                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7454                 if (rc != MBX_SUCCESS) {
7455                         lpfc_printf_log(phba, KERN_ERR,
7456                                         LOG_TRACE_EVENT,
7457                                         "6016 Mailbox failed , mbxCmd x%x "
7458                                         "READ_NV, mbxStatus x%x\n",
7459                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
7460                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
7461                         mempool_free(mboxq, phba->mbox_mem_pool);
7462                         rc = -EIO;
7463                         goto out_free_bsmbx;
7464                 }
7465                 mb = &mboxq->u.mb;
7466                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
7467                        sizeof(uint64_t));
7468                 wwn = cpu_to_be64(wwn);
7469                 phba->sli4_hba.wwnn.u.name = wwn;
7470                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
7471                        sizeof(uint64_t));
7472                 /* wwn is WWPN of HBA instance */
7473                 wwn = cpu_to_be64(wwn);
7474                 phba->sli4_hba.wwpn.u.name = wwn;
7475
7476                 /* Check to see if it matches any module parameter */
7477                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
7478                         if (wwn == lpfc_enable_nvmet[i]) {
7479 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
7480                                 if (lpfc_nvmet_mem_alloc(phba))
7481                                         break;
7482
7483                                 phba->nvmet_support = 1; /* a match */
7484
7485                                 lpfc_printf_log(phba, KERN_ERR,
7486                                                 LOG_TRACE_EVENT,
7487                                                 "6017 NVME Target %016llx\n",
7488                                                 wwn);
7489 #else
7490                                 lpfc_printf_log(phba, KERN_ERR,
7491                                                 LOG_TRACE_EVENT,
7492                                                 "6021 Can't enable NVME Target."
7493                                                 " NVME_TARGET_FC infrastructure"
7494                                                 " is not in kernel\n");
7495 #endif
7496                                 /* Not supported for NVMET */
7497                                 phba->cfg_xri_rebalancing = 0;
7498                                 if (phba->irq_chann_mode == NHT_MODE) {
7499                                         phba->cfg_irq_chann =
7500                                                 phba->sli4_hba.num_present_cpu;
7501                                         phba->cfg_hdw_queue =
7502                                                 phba->sli4_hba.num_present_cpu;
7503                                         phba->irq_chann_mode = NORMAL_MODE;
7504                                 }
7505                                 break;
7506                         }
7507                 }
7508         }
7509
7510         lpfc_nvme_mod_param_dep(phba);
7511
7512         /*
7513          * Get sli4 parameters that override parameters from Port capabilities.
7514          * If this call fails, it isn't critical unless the SLI4 parameters come
7515          * back in conflict.
7516          */
7517         rc = lpfc_get_sli4_parameters(phba, mboxq);
7518         if (rc) {
7519                 if_type = bf_get(lpfc_sli_intf_if_type,
7520                                  &phba->sli4_hba.sli_intf);
7521                 if_fam = bf_get(lpfc_sli_intf_sli_family,
7522                                 &phba->sli4_hba.sli_intf);
7523                 if (phba->sli4_hba.extents_in_use &&
7524                     phba->sli4_hba.rpi_hdrs_in_use) {
7525                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7526                                         "2999 Unsupported SLI4 Parameters "
7527                                         "Extents and RPI headers enabled.\n");
7528                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
7529                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
7530                                 mempool_free(mboxq, phba->mbox_mem_pool);
7531                                 rc = -EIO;
7532                                 goto out_free_bsmbx;
7533                         }
7534                 }
7535                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
7536                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
7537                         mempool_free(mboxq, phba->mbox_mem_pool);
7538                         rc = -EIO;
7539                         goto out_free_bsmbx;
7540                 }
7541         }
7542
7543         /*
7544          * 1 for cmd, 1 for rsp, NVME adds an extra one
7545          * for boundary conditions in its max_sgl_segment template.
7546          */
7547         extra = 2;
7548         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
7549                 extra++;
7550
7551         /*
7552          * It doesn't matter what family our adapter is in, we are
7553          * limited to 2 Pages, 512 SGEs, for our SGL.
7554          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
7555          */
7556         max_buf_size = (2 * SLI4_PAGE_SIZE);
7557
7558         /*
7559          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
7560          * used to create the sg_dma_buf_pool must be calculated.
7561          */
7562         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
7563                 /* Both cfg_enable_bg and cfg_external_dif code paths */
7564
7565                 /*
7566                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
7567                  * the FCP rsp, and a SGE. Sice we have no control
7568                  * over how many protection segments the SCSI Layer
7569                  * will hand us (ie: there could be one for every block
7570                  * in the IO), just allocate enough SGEs to accomidate
7571                  * our max amount and we need to limit lpfc_sg_seg_cnt
7572                  * to minimize the risk of running out.
7573                  */
7574                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7575                                 sizeof(struct fcp_rsp) + max_buf_size;
7576
7577                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
7578                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
7579
7580                 /*
7581                  * If supporting DIF, reduce the seg count for scsi to
7582                  * allow room for the DIF sges.
7583                  */
7584                 if (phba->cfg_enable_bg &&
7585                     phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
7586                         phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
7587                 else
7588                         phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
7589
7590         } else {
7591                 /*
7592                  * The scsi_buf for a regular I/O holds the FCP cmnd,
7593                  * the FCP rsp, a SGE for each, and a SGE for up to
7594                  * cfg_sg_seg_cnt data segments.
7595                  */
7596                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7597                                 sizeof(struct fcp_rsp) +
7598                                 ((phba->cfg_sg_seg_cnt + extra) *
7599                                 sizeof(struct sli4_sge));
7600
7601                 /* Total SGEs for scsi_sg_list */
7602                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
7603                 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
7604
7605                 /*
7606                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
7607                  * need to post 1 page for the SGL.
7608                  */
7609         }
7610
7611         if (phba->cfg_xpsgl && !phba->nvmet_support)
7612                 phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE;
7613         else if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
7614                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
7615         else
7616                 phba->cfg_sg_dma_buf_size =
7617                                 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
7618
7619         phba->border_sge_num = phba->cfg_sg_dma_buf_size /
7620                                sizeof(struct sli4_sge);
7621
7622         /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
7623         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
7624                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
7625                         lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
7626                                         "6300 Reducing NVME sg segment "
7627                                         "cnt to %d\n",
7628                                         LPFC_MAX_NVME_SEG_CNT);
7629                         phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
7630                 } else
7631                         phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
7632         }
7633
7634         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
7635                         "9087 sg_seg_cnt:%d dmabuf_size:%d "
7636                         "total:%d scsi:%d nvme:%d\n",
7637                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
7638                         phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
7639                         phba->cfg_nvme_seg_cnt);
7640
7641         if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE)
7642                 i = phba->cfg_sg_dma_buf_size;
7643         else
7644                 i = SLI4_PAGE_SIZE;
7645
7646         phba->lpfc_sg_dma_buf_pool =
7647                         dma_pool_create("lpfc_sg_dma_buf_pool",
7648                                         &phba->pcidev->dev,
7649                                         phba->cfg_sg_dma_buf_size,
7650                                         i, 0);
7651         if (!phba->lpfc_sg_dma_buf_pool)
7652                 goto out_free_bsmbx;
7653
7654         phba->lpfc_cmd_rsp_buf_pool =
7655                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
7656                                         &phba->pcidev->dev,
7657                                         sizeof(struct fcp_cmnd) +
7658                                         sizeof(struct fcp_rsp),
7659                                         i, 0);
7660         if (!phba->lpfc_cmd_rsp_buf_pool)
7661                 goto out_free_sg_dma_buf;
7662
7663         mempool_free(mboxq, phba->mbox_mem_pool);
7664
7665         /* Verify OAS is supported */
7666         lpfc_sli4_oas_verify(phba);
7667
7668         /* Verify RAS support on adapter */
7669         lpfc_sli4_ras_init(phba);
7670
7671         /* Verify all the SLI4 queues */
7672         rc = lpfc_sli4_queue_verify(phba);
7673         if (rc)
7674                 goto out_free_cmd_rsp_buf;
7675
7676         /* Create driver internal CQE event pool */
7677         rc = lpfc_sli4_cq_event_pool_create(phba);
7678         if (rc)
7679                 goto out_free_cmd_rsp_buf;
7680
7681         /* Initialize sgl lists per host */
7682         lpfc_init_sgl_list(phba);
7683
7684         /* Allocate and initialize active sgl array */
7685         rc = lpfc_init_active_sgl_array(phba);
7686         if (rc) {
7687                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7688                                 "1430 Failed to initialize sgl list.\n");
7689                 goto out_destroy_cq_event_pool;
7690         }
7691         rc = lpfc_sli4_init_rpi_hdrs(phba);
7692         if (rc) {
7693                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7694                                 "1432 Failed to initialize rpi headers.\n");
7695                 goto out_free_active_sgl;
7696         }
7697
7698         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
7699         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
7700         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
7701                                          GFP_KERNEL);
7702         if (!phba->fcf.fcf_rr_bmask) {
7703                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7704                                 "2759 Failed allocate memory for FCF round "
7705                                 "robin failover bmask\n");
7706                 rc = -ENOMEM;
7707                 goto out_remove_rpi_hdrs;
7708         }
7709
7710         phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
7711                                             sizeof(struct lpfc_hba_eq_hdl),
7712                                             GFP_KERNEL);
7713         if (!phba->sli4_hba.hba_eq_hdl) {
7714                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7715                                 "2572 Failed allocate memory for "
7716                                 "fast-path per-EQ handle array\n");
7717                 rc = -ENOMEM;
7718                 goto out_free_fcf_rr_bmask;
7719         }
7720
7721         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
7722                                         sizeof(struct lpfc_vector_map_info),
7723                                         GFP_KERNEL);
7724         if (!phba->sli4_hba.cpu_map) {
7725                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7726                                 "3327 Failed allocate memory for msi-x "
7727                                 "interrupt vector mapping\n");
7728                 rc = -ENOMEM;
7729                 goto out_free_hba_eq_hdl;
7730         }
7731
7732         phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
7733         if (!phba->sli4_hba.eq_info) {
7734                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7735                                 "3321 Failed allocation for per_cpu stats\n");
7736                 rc = -ENOMEM;
7737                 goto out_free_hba_cpu_map;
7738         }
7739
7740         phba->sli4_hba.idle_stat = kcalloc(phba->sli4_hba.num_possible_cpu,
7741                                            sizeof(*phba->sli4_hba.idle_stat),
7742                                            GFP_KERNEL);
7743         if (!phba->sli4_hba.idle_stat) {
7744                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7745                                 "3390 Failed allocation for idle_stat\n");
7746                 rc = -ENOMEM;
7747                 goto out_free_hba_eq_info;
7748         }
7749
7750 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
7751         phba->sli4_hba.c_stat = alloc_percpu(struct lpfc_hdwq_stat);
7752         if (!phba->sli4_hba.c_stat) {
7753                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7754                                 "3332 Failed allocating per cpu hdwq stats\n");
7755                 rc = -ENOMEM;
7756                 goto out_free_hba_idle_stat;
7757         }
7758 #endif
7759
7760         phba->cmf_stat = alloc_percpu(struct lpfc_cgn_stat);
7761         if (!phba->cmf_stat) {
7762                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7763                                 "3331 Failed allocating per cpu cgn stats\n");
7764                 rc = -ENOMEM;
7765                 goto out_free_hba_hdwq_info;
7766         }
7767
7768         /*
7769          * Enable sr-iov virtual functions if supported and configured
7770          * through the module parameter.
7771          */
7772         if (phba->cfg_sriov_nr_virtfn > 0) {
7773                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
7774                                                  phba->cfg_sriov_nr_virtfn);
7775                 if (rc) {
7776                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7777                                         "3020 Requested number of SR-IOV "
7778                                         "virtual functions (%d) is not "
7779                                         "supported\n",
7780                                         phba->cfg_sriov_nr_virtfn);
7781                         phba->cfg_sriov_nr_virtfn = 0;
7782                 }
7783         }
7784
7785         return 0;
7786
7787 out_free_hba_hdwq_info:
7788         free_percpu(phba->sli4_hba.c_stat);
7789 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
7790 out_free_hba_idle_stat:
7791         kfree(phba->sli4_hba.idle_stat);
7792 #endif
7793 out_free_hba_eq_info:
7794         free_percpu(phba->sli4_hba.eq_info);
7795 out_free_hba_cpu_map:
7796         kfree(phba->sli4_hba.cpu_map);
7797 out_free_hba_eq_hdl:
7798         kfree(phba->sli4_hba.hba_eq_hdl);
7799 out_free_fcf_rr_bmask:
7800         kfree(phba->fcf.fcf_rr_bmask);
7801 out_remove_rpi_hdrs:
7802         lpfc_sli4_remove_rpi_hdrs(phba);
7803 out_free_active_sgl:
7804         lpfc_free_active_sgl(phba);
7805 out_destroy_cq_event_pool:
7806         lpfc_sli4_cq_event_pool_destroy(phba);
7807 out_free_cmd_rsp_buf:
7808         dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool);
7809         phba->lpfc_cmd_rsp_buf_pool = NULL;
7810 out_free_sg_dma_buf:
7811         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
7812         phba->lpfc_sg_dma_buf_pool = NULL;
7813 out_free_bsmbx:
7814         lpfc_destroy_bootstrap_mbox(phba);
7815 out_free_mem:
7816         lpfc_mem_free(phba);
7817         return rc;
7818 }
7819
7820 /**
7821  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
7822  * @phba: pointer to lpfc hba data structure.
7823  *
7824  * This routine is invoked to unset the driver internal resources set up
7825  * specific for supporting the SLI-4 HBA device it attached to.
7826  **/
7827 static void
7828 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
7829 {
7830         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
7831
7832         free_percpu(phba->sli4_hba.eq_info);
7833 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
7834         free_percpu(phba->sli4_hba.c_stat);
7835 #endif
7836         free_percpu(phba->cmf_stat);
7837         kfree(phba->sli4_hba.idle_stat);
7838
7839         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
7840         kfree(phba->sli4_hba.cpu_map);
7841         phba->sli4_hba.num_possible_cpu = 0;
7842         phba->sli4_hba.num_present_cpu = 0;
7843         phba->sli4_hba.curr_disp_cpu = 0;
7844         cpumask_clear(&phba->sli4_hba.irq_aff_mask);
7845
7846         /* Free memory allocated for fast-path work queue handles */
7847         kfree(phba->sli4_hba.hba_eq_hdl);
7848
7849         /* Free the allocated rpi headers. */
7850         lpfc_sli4_remove_rpi_hdrs(phba);
7851         lpfc_sli4_remove_rpis(phba);
7852
7853         /* Free eligible FCF index bmask */
7854         kfree(phba->fcf.fcf_rr_bmask);
7855
7856         /* Free the ELS sgl list */
7857         lpfc_free_active_sgl(phba);
7858         lpfc_free_els_sgl_list(phba);
7859         lpfc_free_nvmet_sgl_list(phba);
7860
7861         /* Free the completion queue EQ event pool */
7862         lpfc_sli4_cq_event_release_all(phba);
7863         lpfc_sli4_cq_event_pool_destroy(phba);
7864
7865         /* Release resource identifiers. */
7866         lpfc_sli4_dealloc_resource_identifiers(phba);
7867
7868         /* Free the bsmbx region. */
7869         lpfc_destroy_bootstrap_mbox(phba);
7870
7871         /* Free the SLI Layer memory with SLI4 HBAs */
7872         lpfc_mem_free_all(phba);
7873
7874         /* Free the current connect table */
7875         list_for_each_entry_safe(conn_entry, next_conn_entry,
7876                 &phba->fcf_conn_rec_list, list) {
7877                 list_del_init(&conn_entry->list);
7878                 kfree(conn_entry);
7879         }
7880
7881         return;
7882 }
7883
7884 /**
7885  * lpfc_init_api_table_setup - Set up init api function jump table
7886  * @phba: The hba struct for which this call is being executed.
7887  * @dev_grp: The HBA PCI-Device group number.
7888  *
7889  * This routine sets up the device INIT interface API function jump table
7890  * in @phba struct.
7891  *
7892  * Returns: 0 - success, -ENODEV - failure.
7893  **/
7894 int
7895 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7896 {
7897         phba->lpfc_hba_init_link = lpfc_hba_init_link;
7898         phba->lpfc_hba_down_link = lpfc_hba_down_link;
7899         phba->lpfc_selective_reset = lpfc_selective_reset;
7900         switch (dev_grp) {
7901         case LPFC_PCI_DEV_LP:
7902                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
7903                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
7904                 phba->lpfc_stop_port = lpfc_stop_port_s3;
7905                 break;
7906         case LPFC_PCI_DEV_OC:
7907                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
7908                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
7909                 phba->lpfc_stop_port = lpfc_stop_port_s4;
7910                 break;
7911         default:
7912                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7913                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
7914                                 dev_grp);
7915                 return -ENODEV;
7916         }
7917         return 0;
7918 }
7919
7920 /**
7921  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
7922  * @phba: pointer to lpfc hba data structure.
7923  *
7924  * This routine is invoked to set up the driver internal resources after the
7925  * device specific resource setup to support the HBA device it attached to.
7926  *
7927  * Return codes
7928  *      0 - successful
7929  *      other values - error
7930  **/
7931 static int
7932 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
7933 {
7934         int error;
7935
7936         /* Startup the kernel thread for this host adapter. */
7937         phba->worker_thread = kthread_run(lpfc_do_work, phba,
7938                                           "lpfc_worker_%d", phba->brd_no);
7939         if (IS_ERR(phba->worker_thread)) {
7940                 error = PTR_ERR(phba->worker_thread);
7941                 return error;
7942         }
7943
7944         return 0;
7945 }
7946
7947 /**
7948  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
7949  * @phba: pointer to lpfc hba data structure.
7950  *
7951  * This routine is invoked to unset the driver internal resources set up after
7952  * the device specific resource setup for supporting the HBA device it
7953  * attached to.
7954  **/
7955 static void
7956 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
7957 {
7958         if (phba->wq) {
7959                 flush_workqueue(phba->wq);
7960                 destroy_workqueue(phba->wq);
7961                 phba->wq = NULL;
7962         }
7963
7964         /* Stop kernel worker thread */
7965         if (phba->worker_thread)
7966                 kthread_stop(phba->worker_thread);
7967 }
7968
7969 /**
7970  * lpfc_free_iocb_list - Free iocb list.
7971  * @phba: pointer to lpfc hba data structure.
7972  *
7973  * This routine is invoked to free the driver's IOCB list and memory.
7974  **/
7975 void
7976 lpfc_free_iocb_list(struct lpfc_hba *phba)
7977 {
7978         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
7979
7980         spin_lock_irq(&phba->hbalock);
7981         list_for_each_entry_safe(iocbq_entry, iocbq_next,
7982                                  &phba->lpfc_iocb_list, list) {
7983                 list_del(&iocbq_entry->list);
7984                 kfree(iocbq_entry);
7985                 phba->total_iocbq_bufs--;
7986         }
7987         spin_unlock_irq(&phba->hbalock);
7988
7989         return;
7990 }
7991
7992 /**
7993  * lpfc_init_iocb_list - Allocate and initialize iocb list.
7994  * @phba: pointer to lpfc hba data structure.
7995  * @iocb_count: number of requested iocbs
7996  *
7997  * This routine is invoked to allocate and initizlize the driver's IOCB
7998  * list and set up the IOCB tag array accordingly.
7999  *
8000  * Return codes
8001  *      0 - successful
8002  *      other values - error
8003  **/
8004 int
8005 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
8006 {
8007         struct lpfc_iocbq *iocbq_entry = NULL;
8008         uint16_t iotag;
8009         int i;
8010
8011         /* Initialize and populate the iocb list per host.  */
8012         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
8013         for (i = 0; i < iocb_count; i++) {
8014                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
8015                 if (iocbq_entry == NULL) {
8016                         printk(KERN_ERR "%s: only allocated %d iocbs of "
8017                                 "expected %d count. Unloading driver.\n",
8018                                 __func__, i, iocb_count);
8019                         goto out_free_iocbq;
8020                 }
8021
8022                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
8023                 if (iotag == 0) {
8024                         kfree(iocbq_entry);
8025                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
8026                                 "Unloading driver.\n", __func__);
8027                         goto out_free_iocbq;
8028                 }
8029                 iocbq_entry->sli4_lxritag = NO_XRI;
8030                 iocbq_entry->sli4_xritag = NO_XRI;
8031
8032                 spin_lock_irq(&phba->hbalock);
8033                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
8034                 phba->total_iocbq_bufs++;
8035                 spin_unlock_irq(&phba->hbalock);
8036         }
8037
8038         return 0;
8039
8040 out_free_iocbq:
8041         lpfc_free_iocb_list(phba);
8042
8043         return -ENOMEM;
8044 }
8045
8046 /**
8047  * lpfc_free_sgl_list - Free a given sgl list.
8048  * @phba: pointer to lpfc hba data structure.
8049  * @sglq_list: pointer to the head of sgl list.
8050  *
8051  * This routine is invoked to free a give sgl list and memory.
8052  **/
8053 void
8054 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
8055 {
8056         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8057
8058         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
8059                 list_del(&sglq_entry->list);
8060                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
8061                 kfree(sglq_entry);
8062         }
8063 }
8064
8065 /**
8066  * lpfc_free_els_sgl_list - Free els sgl list.
8067  * @phba: pointer to lpfc hba data structure.
8068  *
8069  * This routine is invoked to free the driver's els sgl list and memory.
8070  **/
8071 static void
8072 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
8073 {
8074         LIST_HEAD(sglq_list);
8075
8076         /* Retrieve all els sgls from driver list */
8077         spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
8078         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
8079         spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
8080
8081         /* Now free the sgl list */
8082         lpfc_free_sgl_list(phba, &sglq_list);
8083 }
8084
8085 /**
8086  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
8087  * @phba: pointer to lpfc hba data structure.
8088  *
8089  * This routine is invoked to free the driver's nvmet sgl list and memory.
8090  **/
8091 static void
8092 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
8093 {
8094         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8095         LIST_HEAD(sglq_list);
8096
8097         /* Retrieve all nvmet sgls from driver list */
8098         spin_lock_irq(&phba->hbalock);
8099         spin_lock(&phba->sli4_hba.sgl_list_lock);
8100         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
8101         spin_unlock(&phba->sli4_hba.sgl_list_lock);
8102         spin_unlock_irq(&phba->hbalock);
8103
8104         /* Now free the sgl list */
8105         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
8106                 list_del(&sglq_entry->list);
8107                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
8108                 kfree(sglq_entry);
8109         }
8110
8111         /* Update the nvmet_xri_cnt to reflect no current sgls.
8112          * The next initialization cycle sets the count and allocates
8113          * the sgls over again.
8114          */
8115         phba->sli4_hba.nvmet_xri_cnt = 0;
8116 }
8117
8118 /**
8119  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
8120  * @phba: pointer to lpfc hba data structure.
8121  *
8122  * This routine is invoked to allocate the driver's active sgl memory.
8123  * This array will hold the sglq_entry's for active IOs.
8124  **/
8125 static int
8126 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
8127 {
8128         int size;
8129         size = sizeof(struct lpfc_sglq *);
8130         size *= phba->sli4_hba.max_cfg_param.max_xri;
8131
8132         phba->sli4_hba.lpfc_sglq_active_list =
8133                 kzalloc(size, GFP_KERNEL);
8134         if (!phba->sli4_hba.lpfc_sglq_active_list)
8135                 return -ENOMEM;
8136         return 0;
8137 }
8138
8139 /**
8140  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
8141  * @phba: pointer to lpfc hba data structure.
8142  *
8143  * This routine is invoked to walk through the array of active sglq entries
8144  * and free all of the resources.
8145  * This is just a place holder for now.
8146  **/
8147 static void
8148 lpfc_free_active_sgl(struct lpfc_hba *phba)
8149 {
8150         kfree(phba->sli4_hba.lpfc_sglq_active_list);
8151 }
8152
8153 /**
8154  * lpfc_init_sgl_list - Allocate and initialize sgl list.
8155  * @phba: pointer to lpfc hba data structure.
8156  *
8157  * This routine is invoked to allocate and initizlize the driver's sgl
8158  * list and set up the sgl xritag tag array accordingly.
8159  *
8160  **/
8161 static void
8162 lpfc_init_sgl_list(struct lpfc_hba *phba)
8163 {
8164         /* Initialize and populate the sglq list per host/VF. */
8165         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
8166         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8167         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
8168         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
8169
8170         /* els xri-sgl book keeping */
8171         phba->sli4_hba.els_xri_cnt = 0;
8172
8173         /* nvme xri-buffer book keeping */
8174         phba->sli4_hba.io_xri_cnt = 0;
8175 }
8176
8177 /**
8178  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
8179  * @phba: pointer to lpfc hba data structure.
8180  *
8181  * This routine is invoked to post rpi header templates to the
8182  * port for those SLI4 ports that do not support extents.  This routine
8183  * posts a PAGE_SIZE memory region to the port to hold up to
8184  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
8185  * and should be called only when interrupts are disabled.
8186  *
8187  * Return codes
8188  *      0 - successful
8189  *      -ERROR - otherwise.
8190  **/
8191 int
8192 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
8193 {
8194         int rc = 0;
8195         struct lpfc_rpi_hdr *rpi_hdr;
8196
8197         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
8198         if (!phba->sli4_hba.rpi_hdrs_in_use)
8199                 return rc;
8200         if (phba->sli4_hba.extents_in_use)
8201                 return -EIO;
8202
8203         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
8204         if (!rpi_hdr) {
8205                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8206                                 "0391 Error during rpi post operation\n");
8207                 lpfc_sli4_remove_rpis(phba);
8208                 rc = -ENODEV;
8209         }
8210
8211         return rc;
8212 }
8213
8214 /**
8215  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
8216  * @phba: pointer to lpfc hba data structure.
8217  *
8218  * This routine is invoked to allocate a single 4KB memory region to
8219  * support rpis and stores them in the phba.  This single region
8220  * provides support for up to 64 rpis.  The region is used globally
8221  * by the device.
8222  *
8223  * Returns:
8224  *   A valid rpi hdr on success.
8225  *   A NULL pointer on any failure.
8226  **/
8227 struct lpfc_rpi_hdr *
8228 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
8229 {
8230         uint16_t rpi_limit, curr_rpi_range;
8231         struct lpfc_dmabuf *dmabuf;
8232         struct lpfc_rpi_hdr *rpi_hdr;
8233
8234         /*
8235          * If the SLI4 port supports extents, posting the rpi header isn't
8236          * required.  Set the expected maximum count and let the actual value
8237          * get set when extents are fully allocated.
8238          */
8239         if (!phba->sli4_hba.rpi_hdrs_in_use)
8240                 return NULL;
8241         if (phba->sli4_hba.extents_in_use)
8242                 return NULL;
8243
8244         /* The limit on the logical index is just the max_rpi count. */
8245         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
8246
8247         spin_lock_irq(&phba->hbalock);
8248         /*
8249          * Establish the starting RPI in this header block.  The starting
8250          * rpi is normalized to a zero base because the physical rpi is
8251          * port based.
8252          */
8253         curr_rpi_range = phba->sli4_hba.next_rpi;
8254         spin_unlock_irq(&phba->hbalock);
8255
8256         /* Reached full RPI range */
8257         if (curr_rpi_range == rpi_limit)
8258                 return NULL;
8259
8260         /*
8261          * First allocate the protocol header region for the port.  The
8262          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
8263          */
8264         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8265         if (!dmabuf)
8266                 return NULL;
8267
8268         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
8269                                           LPFC_HDR_TEMPLATE_SIZE,
8270                                           &dmabuf->phys, GFP_KERNEL);
8271         if (!dmabuf->virt) {
8272                 rpi_hdr = NULL;
8273                 goto err_free_dmabuf;
8274         }
8275
8276         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
8277                 rpi_hdr = NULL;
8278                 goto err_free_coherent;
8279         }
8280
8281         /* Save the rpi header data for cleanup later. */
8282         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
8283         if (!rpi_hdr)
8284                 goto err_free_coherent;
8285
8286         rpi_hdr->dmabuf = dmabuf;
8287         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
8288         rpi_hdr->page_count = 1;
8289         spin_lock_irq(&phba->hbalock);
8290
8291         /* The rpi_hdr stores the logical index only. */
8292         rpi_hdr->start_rpi = curr_rpi_range;
8293         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
8294         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
8295
8296         spin_unlock_irq(&phba->hbalock);
8297         return rpi_hdr;
8298
8299  err_free_coherent:
8300         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
8301                           dmabuf->virt, dmabuf->phys);
8302  err_free_dmabuf:
8303         kfree(dmabuf);
8304         return NULL;
8305 }
8306
8307 /**
8308  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
8309  * @phba: pointer to lpfc hba data structure.
8310  *
8311  * This routine is invoked to remove all memory resources allocated
8312  * to support rpis for SLI4 ports not supporting extents. This routine
8313  * presumes the caller has released all rpis consumed by fabric or port
8314  * logins and is prepared to have the header pages removed.
8315  **/
8316 void
8317 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
8318 {
8319         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
8320
8321         if (!phba->sli4_hba.rpi_hdrs_in_use)
8322                 goto exit;
8323
8324         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
8325                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
8326                 list_del(&rpi_hdr->list);
8327                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
8328                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
8329                 kfree(rpi_hdr->dmabuf);
8330                 kfree(rpi_hdr);
8331         }
8332  exit:
8333         /* There are no rpis available to the port now. */
8334         phba->sli4_hba.next_rpi = 0;
8335 }
8336
8337 /**
8338  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
8339  * @pdev: pointer to pci device data structure.
8340  *
8341  * This routine is invoked to allocate the driver hba data structure for an
8342  * HBA device. If the allocation is successful, the phba reference to the
8343  * PCI device data structure is set.
8344  *
8345  * Return codes
8346  *      pointer to @phba - successful
8347  *      NULL - error
8348  **/
8349 static struct lpfc_hba *
8350 lpfc_hba_alloc(struct pci_dev *pdev)
8351 {
8352         struct lpfc_hba *phba;
8353
8354         /* Allocate memory for HBA structure */
8355         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
8356         if (!phba) {
8357                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
8358                 return NULL;
8359         }
8360
8361         /* Set reference to PCI device in HBA structure */
8362         phba->pcidev = pdev;
8363
8364         /* Assign an unused board number */
8365         phba->brd_no = lpfc_get_instance();
8366         if (phba->brd_no < 0) {
8367                 kfree(phba);
8368                 return NULL;
8369         }
8370         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
8371
8372         spin_lock_init(&phba->ct_ev_lock);
8373         INIT_LIST_HEAD(&phba->ct_ev_waiters);
8374
8375         return phba;
8376 }
8377
8378 /**
8379  * lpfc_hba_free - Free driver hba data structure with a device.
8380  * @phba: pointer to lpfc hba data structure.
8381  *
8382  * This routine is invoked to free the driver hba data structure with an
8383  * HBA device.
8384  **/
8385 static void
8386 lpfc_hba_free(struct lpfc_hba *phba)
8387 {
8388         if (phba->sli_rev == LPFC_SLI_REV4)
8389                 kfree(phba->sli4_hba.hdwq);
8390
8391         /* Release the driver assigned board number */
8392         idr_remove(&lpfc_hba_index, phba->brd_no);
8393
8394         /* Free memory allocated with sli3 rings */
8395         kfree(phba->sli.sli3_ring);
8396         phba->sli.sli3_ring = NULL;
8397
8398         kfree(phba);
8399         return;
8400 }
8401
8402 /**
8403  * lpfc_create_shost - Create hba physical port with associated scsi host.
8404  * @phba: pointer to lpfc hba data structure.
8405  *
8406  * This routine is invoked to create HBA physical port and associate a SCSI
8407  * host with it.
8408  *
8409  * Return codes
8410  *      0 - successful
8411  *      other values - error
8412  **/
8413 static int
8414 lpfc_create_shost(struct lpfc_hba *phba)
8415 {
8416         struct lpfc_vport *vport;
8417         struct Scsi_Host  *shost;
8418
8419         /* Initialize HBA FC structure */
8420         phba->fc_edtov = FF_DEF_EDTOV;
8421         phba->fc_ratov = FF_DEF_RATOV;
8422         phba->fc_altov = FF_DEF_ALTOV;
8423         phba->fc_arbtov = FF_DEF_ARBTOV;
8424
8425         atomic_set(&phba->sdev_cnt, 0);
8426         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
8427         if (!vport)
8428                 return -ENODEV;
8429
8430         shost = lpfc_shost_from_vport(vport);
8431         phba->pport = vport;
8432
8433         if (phba->nvmet_support) {
8434                 /* Only 1 vport (pport) will support NVME target */
8435                 phba->targetport = NULL;
8436                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
8437                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME_DISC,
8438                                 "6076 NVME Target Found\n");
8439         }
8440
8441         lpfc_debugfs_initialize(vport);
8442         /* Put reference to SCSI host to driver's device private data */
8443         pci_set_drvdata(phba->pcidev, shost);
8444
8445         /*
8446          * At this point we are fully registered with PSA. In addition,
8447          * any initial discovery should be completed.
8448          */
8449         vport->load_flag |= FC_ALLOW_FDMI;
8450         if (phba->cfg_enable_SmartSAN ||
8451             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
8452
8453                 /* Setup appropriate attribute masks */
8454                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
8455                 if (phba->cfg_enable_SmartSAN)
8456                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
8457                 else
8458                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
8459         }
8460         return 0;
8461 }
8462
8463 /**
8464  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
8465  * @phba: pointer to lpfc hba data structure.
8466  *
8467  * This routine is invoked to destroy HBA physical port and the associated
8468  * SCSI host.
8469  **/
8470 static void
8471 lpfc_destroy_shost(struct lpfc_hba *phba)
8472 {
8473         struct lpfc_vport *vport = phba->pport;
8474
8475         /* Destroy physical port that associated with the SCSI host */
8476         destroy_port(vport);
8477
8478         return;
8479 }
8480
8481 /**
8482  * lpfc_setup_bg - Setup Block guard structures and debug areas.
8483  * @phba: pointer to lpfc hba data structure.
8484  * @shost: the shost to be used to detect Block guard settings.
8485  *
8486  * This routine sets up the local Block guard protocol settings for @shost.
8487  * This routine also allocates memory for debugging bg buffers.
8488  **/
8489 static void
8490 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
8491 {
8492         uint32_t old_mask;
8493         uint32_t old_guard;
8494
8495         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
8496                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8497                                 "1478 Registering BlockGuard with the "
8498                                 "SCSI layer\n");
8499
8500                 old_mask = phba->cfg_prot_mask;
8501                 old_guard = phba->cfg_prot_guard;
8502
8503                 /* Only allow supported values */
8504                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
8505                         SHOST_DIX_TYPE0_PROTECTION |
8506                         SHOST_DIX_TYPE1_PROTECTION);
8507                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
8508                                          SHOST_DIX_GUARD_CRC);
8509
8510                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
8511                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
8512                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
8513
8514                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
8515                         if ((old_mask != phba->cfg_prot_mask) ||
8516                                 (old_guard != phba->cfg_prot_guard))
8517                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8518                                         "1475 Registering BlockGuard with the "
8519                                         "SCSI layer: mask %d  guard %d\n",
8520                                         phba->cfg_prot_mask,
8521                                         phba->cfg_prot_guard);
8522
8523                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
8524                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
8525                 } else
8526                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8527                                 "1479 Not Registering BlockGuard with the SCSI "
8528                                 "layer, Bad protection parameters: %d %d\n",
8529                                 old_mask, old_guard);
8530         }
8531 }
8532
8533 /**
8534  * lpfc_post_init_setup - Perform necessary device post initialization setup.
8535  * @phba: pointer to lpfc hba data structure.
8536  *
8537  * This routine is invoked to perform all the necessary post initialization
8538  * setup for the device.
8539  **/
8540 static void
8541 lpfc_post_init_setup(struct lpfc_hba *phba)
8542 {
8543         struct Scsi_Host  *shost;
8544         struct lpfc_adapter_event_header adapter_event;
8545
8546         /* Get the default values for Model Name and Description */
8547         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
8548
8549         /*
8550          * hba setup may have changed the hba_queue_depth so we need to
8551          * adjust the value of can_queue.
8552          */
8553         shost = pci_get_drvdata(phba->pcidev);
8554         shost->can_queue = phba->cfg_hba_queue_depth - 10;
8555
8556         lpfc_host_attrib_init(shost);
8557
8558         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
8559                 spin_lock_irq(shost->host_lock);
8560                 lpfc_poll_start_timer(phba);
8561                 spin_unlock_irq(shost->host_lock);
8562         }
8563
8564         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8565                         "0428 Perform SCSI scan\n");
8566         /* Send board arrival event to upper layer */
8567         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
8568         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
8569         fc_host_post_vendor_event(shost, fc_get_event_number(),
8570                                   sizeof(adapter_event),
8571                                   (char *) &adapter_event,
8572                                   LPFC_NL_VENDOR_ID);
8573         return;
8574 }
8575
8576 /**
8577  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
8578  * @phba: pointer to lpfc hba data structure.
8579  *
8580  * This routine is invoked to set up the PCI device memory space for device
8581  * with SLI-3 interface spec.
8582  *
8583  * Return codes
8584  *      0 - successful
8585  *      other values - error
8586  **/
8587 static int
8588 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
8589 {
8590         struct pci_dev *pdev = phba->pcidev;
8591         unsigned long bar0map_len, bar2map_len;
8592         int i, hbq_count;
8593         void *ptr;
8594         int error;
8595
8596         if (!pdev)
8597                 return -ENODEV;
8598
8599         /* Set the device DMA mask size */
8600         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
8601         if (error)
8602                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
8603         if (error)
8604                 return error;
8605         error = -ENODEV;
8606
8607         /* Get the bus address of Bar0 and Bar2 and the number of bytes
8608          * required by each mapping.
8609          */
8610         phba->pci_bar0_map = pci_resource_start(pdev, 0);
8611         bar0map_len = pci_resource_len(pdev, 0);
8612
8613         phba->pci_bar2_map = pci_resource_start(pdev, 2);
8614         bar2map_len = pci_resource_len(pdev, 2);
8615
8616         /* Map HBA SLIM to a kernel virtual address. */
8617         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
8618         if (!phba->slim_memmap_p) {
8619                 dev_printk(KERN_ERR, &pdev->dev,
8620                            "ioremap failed for SLIM memory.\n");
8621                 goto out;
8622         }
8623
8624         /* Map HBA Control Registers to a kernel virtual address. */
8625         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
8626         if (!phba->ctrl_regs_memmap_p) {
8627                 dev_printk(KERN_ERR, &pdev->dev,
8628                            "ioremap failed for HBA control registers.\n");
8629                 goto out_iounmap_slim;
8630         }
8631
8632         /* Allocate memory for SLI-2 structures */
8633         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8634                                                &phba->slim2p.phys, GFP_KERNEL);
8635         if (!phba->slim2p.virt)
8636                 goto out_iounmap;
8637
8638         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
8639         phba->mbox_ext = (phba->slim2p.virt +
8640                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
8641         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
8642         phba->IOCBs = (phba->slim2p.virt +
8643                        offsetof(struct lpfc_sli2_slim, IOCBs));
8644
8645         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
8646                                                  lpfc_sli_hbq_size(),
8647                                                  &phba->hbqslimp.phys,
8648                                                  GFP_KERNEL);
8649         if (!phba->hbqslimp.virt)
8650                 goto out_free_slim;
8651
8652         hbq_count = lpfc_sli_hbq_count();
8653         ptr = phba->hbqslimp.virt;
8654         for (i = 0; i < hbq_count; ++i) {
8655                 phba->hbqs[i].hbq_virt = ptr;
8656                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
8657                 ptr += (lpfc_hbq_defs[i]->entry_count *
8658                         sizeof(struct lpfc_hbq_entry));
8659         }
8660         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
8661         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
8662
8663         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
8664
8665         phba->MBslimaddr = phba->slim_memmap_p;
8666         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
8667         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
8668         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
8669         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
8670
8671         return 0;
8672
8673 out_free_slim:
8674         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8675                           phba->slim2p.virt, phba->slim2p.phys);
8676 out_iounmap:
8677         iounmap(phba->ctrl_regs_memmap_p);
8678 out_iounmap_slim:
8679         iounmap(phba->slim_memmap_p);
8680 out:
8681         return error;
8682 }
8683
8684 /**
8685  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
8686  * @phba: pointer to lpfc hba data structure.
8687  *
8688  * This routine is invoked to unset the PCI device memory space for device
8689  * with SLI-3 interface spec.
8690  **/
8691 static void
8692 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
8693 {
8694         struct pci_dev *pdev;
8695
8696         /* Obtain PCI device reference */
8697         if (!phba->pcidev)
8698                 return;
8699         else
8700                 pdev = phba->pcidev;
8701
8702         /* Free coherent DMA memory allocated */
8703         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8704                           phba->hbqslimp.virt, phba->hbqslimp.phys);
8705         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8706                           phba->slim2p.virt, phba->slim2p.phys);
8707
8708         /* I/O memory unmap */
8709         iounmap(phba->ctrl_regs_memmap_p);
8710         iounmap(phba->slim_memmap_p);
8711
8712         return;
8713 }
8714
8715 /**
8716  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
8717  * @phba: pointer to lpfc hba data structure.
8718  *
8719  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
8720  * done and check status.
8721  *
8722  * Return 0 if successful, otherwise -ENODEV.
8723  **/
8724 int
8725 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
8726 {
8727         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
8728         struct lpfc_register reg_data;
8729         int i, port_error = 0;
8730         uint32_t if_type;
8731
8732         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
8733         memset(&reg_data, 0, sizeof(reg_data));
8734         if (!phba->sli4_hba.PSMPHRregaddr)
8735                 return -ENODEV;
8736
8737         /* Wait up to 30 seconds for the SLI Port POST done and ready */
8738         for (i = 0; i < 3000; i++) {
8739                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
8740                         &portsmphr_reg.word0) ||
8741                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
8742                         /* Port has a fatal POST error, break out */
8743                         port_error = -ENODEV;
8744                         break;
8745                 }
8746                 if (LPFC_POST_STAGE_PORT_READY ==
8747                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
8748                         break;
8749                 msleep(10);
8750         }
8751
8752         /*
8753          * If there was a port error during POST, then don't proceed with
8754          * other register reads as the data may not be valid.  Just exit.
8755          */
8756         if (port_error) {
8757                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8758                         "1408 Port Failed POST - portsmphr=0x%x, "
8759                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
8760                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
8761                         portsmphr_reg.word0,
8762                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
8763                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
8764                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
8765                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
8766                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
8767                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
8768                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
8769                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
8770         } else {
8771                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8772                                 "2534 Device Info: SLIFamily=0x%x, "
8773                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
8774                                 "SLIHint_2=0x%x, FT=0x%x\n",
8775                                 bf_get(lpfc_sli_intf_sli_family,
8776                                        &phba->sli4_hba.sli_intf),
8777                                 bf_get(lpfc_sli_intf_slirev,
8778                                        &phba->sli4_hba.sli_intf),
8779                                 bf_get(lpfc_sli_intf_if_type,
8780                                        &phba->sli4_hba.sli_intf),
8781                                 bf_get(lpfc_sli_intf_sli_hint1,
8782                                        &phba->sli4_hba.sli_intf),
8783                                 bf_get(lpfc_sli_intf_sli_hint2,
8784                                        &phba->sli4_hba.sli_intf),
8785                                 bf_get(lpfc_sli_intf_func_type,
8786                                        &phba->sli4_hba.sli_intf));
8787                 /*
8788                  * Check for other Port errors during the initialization
8789                  * process.  Fail the load if the port did not come up
8790                  * correctly.
8791                  */
8792                 if_type = bf_get(lpfc_sli_intf_if_type,
8793                                  &phba->sli4_hba.sli_intf);
8794                 switch (if_type) {
8795                 case LPFC_SLI_INTF_IF_TYPE_0:
8796                         phba->sli4_hba.ue_mask_lo =
8797                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
8798                         phba->sli4_hba.ue_mask_hi =
8799                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
8800                         uerrlo_reg.word0 =
8801                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
8802                         uerrhi_reg.word0 =
8803                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
8804                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
8805                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
8806                                 lpfc_printf_log(phba, KERN_ERR,
8807                                                 LOG_TRACE_EVENT,
8808                                                 "1422 Unrecoverable Error "
8809                                                 "Detected during POST "
8810                                                 "uerr_lo_reg=0x%x, "
8811                                                 "uerr_hi_reg=0x%x, "
8812                                                 "ue_mask_lo_reg=0x%x, "
8813                                                 "ue_mask_hi_reg=0x%x\n",
8814                                                 uerrlo_reg.word0,
8815                                                 uerrhi_reg.word0,
8816                                                 phba->sli4_hba.ue_mask_lo,
8817                                                 phba->sli4_hba.ue_mask_hi);
8818                                 port_error = -ENODEV;
8819                         }
8820                         break;
8821                 case LPFC_SLI_INTF_IF_TYPE_2:
8822                 case LPFC_SLI_INTF_IF_TYPE_6:
8823                         /* Final checks.  The port status should be clean. */
8824                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
8825                                 &reg_data.word0) ||
8826                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
8827                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
8828                                 phba->work_status[0] =
8829                                         readl(phba->sli4_hba.u.if_type2.
8830                                               ERR1regaddr);
8831                                 phba->work_status[1] =
8832                                         readl(phba->sli4_hba.u.if_type2.
8833                                               ERR2regaddr);
8834                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8835                                         "2888 Unrecoverable port error "
8836                                         "following POST: port status reg "
8837                                         "0x%x, port_smphr reg 0x%x, "
8838                                         "error 1=0x%x, error 2=0x%x\n",
8839                                         reg_data.word0,
8840                                         portsmphr_reg.word0,
8841                                         phba->work_status[0],
8842                                         phba->work_status[1]);
8843                                 port_error = -ENODEV;
8844                         }
8845                         break;
8846                 case LPFC_SLI_INTF_IF_TYPE_1:
8847                 default:
8848                         break;
8849                 }
8850         }
8851         return port_error;
8852 }
8853
8854 /**
8855  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
8856  * @phba: pointer to lpfc hba data structure.
8857  * @if_type:  The SLI4 interface type getting configured.
8858  *
8859  * This routine is invoked to set up SLI4 BAR0 PCI config space register
8860  * memory map.
8861  **/
8862 static void
8863 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8864 {
8865         switch (if_type) {
8866         case LPFC_SLI_INTF_IF_TYPE_0:
8867                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
8868                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
8869                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
8870                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
8871                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
8872                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
8873                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
8874                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
8875                 phba->sli4_hba.SLIINTFregaddr =
8876                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
8877                 break;
8878         case LPFC_SLI_INTF_IF_TYPE_2:
8879                 phba->sli4_hba.u.if_type2.EQDregaddr =
8880                         phba->sli4_hba.conf_regs_memmap_p +
8881                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8882                 phba->sli4_hba.u.if_type2.ERR1regaddr =
8883                         phba->sli4_hba.conf_regs_memmap_p +
8884                                                 LPFC_CTL_PORT_ER1_OFFSET;
8885                 phba->sli4_hba.u.if_type2.ERR2regaddr =
8886                         phba->sli4_hba.conf_regs_memmap_p +
8887                                                 LPFC_CTL_PORT_ER2_OFFSET;
8888                 phba->sli4_hba.u.if_type2.CTRLregaddr =
8889                         phba->sli4_hba.conf_regs_memmap_p +
8890                                                 LPFC_CTL_PORT_CTL_OFFSET;
8891                 phba->sli4_hba.u.if_type2.STATUSregaddr =
8892                         phba->sli4_hba.conf_regs_memmap_p +
8893                                                 LPFC_CTL_PORT_STA_OFFSET;
8894                 phba->sli4_hba.SLIINTFregaddr =
8895                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
8896                 phba->sli4_hba.PSMPHRregaddr =
8897                         phba->sli4_hba.conf_regs_memmap_p +
8898                                                 LPFC_CTL_PORT_SEM_OFFSET;
8899                 phba->sli4_hba.RQDBregaddr =
8900                         phba->sli4_hba.conf_regs_memmap_p +
8901                                                 LPFC_ULP0_RQ_DOORBELL;
8902                 phba->sli4_hba.WQDBregaddr =
8903                         phba->sli4_hba.conf_regs_memmap_p +
8904                                                 LPFC_ULP0_WQ_DOORBELL;
8905                 phba->sli4_hba.CQDBregaddr =
8906                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
8907                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8908                 phba->sli4_hba.MQDBregaddr =
8909                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
8910                 phba->sli4_hba.BMBXregaddr =
8911                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8912                 break;
8913         case LPFC_SLI_INTF_IF_TYPE_6:
8914                 phba->sli4_hba.u.if_type2.EQDregaddr =
8915                         phba->sli4_hba.conf_regs_memmap_p +
8916                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8917                 phba->sli4_hba.u.if_type2.ERR1regaddr =
8918                         phba->sli4_hba.conf_regs_memmap_p +
8919                                                 LPFC_CTL_PORT_ER1_OFFSET;
8920                 phba->sli4_hba.u.if_type2.ERR2regaddr =
8921                         phba->sli4_hba.conf_regs_memmap_p +
8922                                                 LPFC_CTL_PORT_ER2_OFFSET;
8923                 phba->sli4_hba.u.if_type2.CTRLregaddr =
8924                         phba->sli4_hba.conf_regs_memmap_p +
8925                                                 LPFC_CTL_PORT_CTL_OFFSET;
8926                 phba->sli4_hba.u.if_type2.STATUSregaddr =
8927                         phba->sli4_hba.conf_regs_memmap_p +
8928                                                 LPFC_CTL_PORT_STA_OFFSET;
8929                 phba->sli4_hba.PSMPHRregaddr =
8930                         phba->sli4_hba.conf_regs_memmap_p +
8931                                                 LPFC_CTL_PORT_SEM_OFFSET;
8932                 phba->sli4_hba.BMBXregaddr =
8933                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8934                 break;
8935         case LPFC_SLI_INTF_IF_TYPE_1:
8936         default:
8937                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8938                            "FATAL - unsupported SLI4 interface type - %d\n",
8939                            if_type);
8940                 break;
8941         }
8942 }
8943
8944 /**
8945  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
8946  * @phba: pointer to lpfc hba data structure.
8947  * @if_type: sli if type to operate on.
8948  *
8949  * This routine is invoked to set up SLI4 BAR1 register memory map.
8950  **/
8951 static void
8952 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8953 {
8954         switch (if_type) {
8955         case LPFC_SLI_INTF_IF_TYPE_0:
8956                 phba->sli4_hba.PSMPHRregaddr =
8957                         phba->sli4_hba.ctrl_regs_memmap_p +
8958                         LPFC_SLIPORT_IF0_SMPHR;
8959                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8960                         LPFC_HST_ISR0;
8961                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8962                         LPFC_HST_IMR0;
8963                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8964                         LPFC_HST_ISCR0;
8965                 break;
8966         case LPFC_SLI_INTF_IF_TYPE_6:
8967                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8968                         LPFC_IF6_RQ_DOORBELL;
8969                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8970                         LPFC_IF6_WQ_DOORBELL;
8971                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8972                         LPFC_IF6_CQ_DOORBELL;
8973                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8974                         LPFC_IF6_EQ_DOORBELL;
8975                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8976                         LPFC_IF6_MQ_DOORBELL;
8977                 break;
8978         case LPFC_SLI_INTF_IF_TYPE_2:
8979         case LPFC_SLI_INTF_IF_TYPE_1:
8980         default:
8981                 dev_err(&phba->pcidev->dev,
8982                            "FATAL - unsupported SLI4 interface type - %d\n",
8983                            if_type);
8984                 break;
8985         }
8986 }
8987
8988 /**
8989  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
8990  * @phba: pointer to lpfc hba data structure.
8991  * @vf: virtual function number
8992  *
8993  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
8994  * based on the given viftual function number, @vf.
8995  *
8996  * Return 0 if successful, otherwise -ENODEV.
8997  **/
8998 static int
8999 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
9000 {
9001         if (vf > LPFC_VIR_FUNC_MAX)
9002                 return -ENODEV;
9003
9004         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9005                                 vf * LPFC_VFR_PAGE_SIZE +
9006                                         LPFC_ULP0_RQ_DOORBELL);
9007         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9008                                 vf * LPFC_VFR_PAGE_SIZE +
9009                                         LPFC_ULP0_WQ_DOORBELL);
9010         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9011                                 vf * LPFC_VFR_PAGE_SIZE +
9012                                         LPFC_EQCQ_DOORBELL);
9013         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
9014         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9015                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
9016         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9017                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
9018         return 0;
9019 }
9020
9021 /**
9022  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
9023  * @phba: pointer to lpfc hba data structure.
9024  *
9025  * This routine is invoked to create the bootstrap mailbox
9026  * region consistent with the SLI-4 interface spec.  This
9027  * routine allocates all memory necessary to communicate
9028  * mailbox commands to the port and sets up all alignment
9029  * needs.  No locks are expected to be held when calling
9030  * this routine.
9031  *
9032  * Return codes
9033  *      0 - successful
9034  *      -ENOMEM - could not allocated memory.
9035  **/
9036 static int
9037 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
9038 {
9039         uint32_t bmbx_size;
9040         struct lpfc_dmabuf *dmabuf;
9041         struct dma_address *dma_address;
9042         uint32_t pa_addr;
9043         uint64_t phys_addr;
9044
9045         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
9046         if (!dmabuf)
9047                 return -ENOMEM;
9048
9049         /*
9050          * The bootstrap mailbox region is comprised of 2 parts
9051          * plus an alignment restriction of 16 bytes.
9052          */
9053         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
9054         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
9055                                           &dmabuf->phys, GFP_KERNEL);
9056         if (!dmabuf->virt) {
9057                 kfree(dmabuf);
9058                 return -ENOMEM;
9059         }
9060
9061         /*
9062          * Initialize the bootstrap mailbox pointers now so that the register
9063          * operations are simple later.  The mailbox dma address is required
9064          * to be 16-byte aligned.  Also align the virtual memory as each
9065          * maibox is copied into the bmbx mailbox region before issuing the
9066          * command to the port.
9067          */
9068         phba->sli4_hba.bmbx.dmabuf = dmabuf;
9069         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
9070
9071         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
9072                                               LPFC_ALIGN_16_BYTE);
9073         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
9074                                               LPFC_ALIGN_16_BYTE);
9075
9076         /*
9077          * Set the high and low physical addresses now.  The SLI4 alignment
9078          * requirement is 16 bytes and the mailbox is posted to the port
9079          * as two 30-bit addresses.  The other data is a bit marking whether
9080          * the 30-bit address is the high or low address.
9081          * Upcast bmbx aphys to 64bits so shift instruction compiles
9082          * clean on 32 bit machines.
9083          */
9084         dma_address = &phba->sli4_hba.bmbx.dma_address;
9085         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
9086         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
9087         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
9088                                            LPFC_BMBX_BIT1_ADDR_HI);
9089
9090         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
9091         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
9092                                            LPFC_BMBX_BIT1_ADDR_LO);
9093         return 0;
9094 }
9095
9096 /**
9097  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
9098  * @phba: pointer to lpfc hba data structure.
9099  *
9100  * This routine is invoked to teardown the bootstrap mailbox
9101  * region and release all host resources. This routine requires
9102  * the caller to ensure all mailbox commands recovered, no
9103  * additional mailbox comands are sent, and interrupts are disabled
9104  * before calling this routine.
9105  *
9106  **/
9107 static void
9108 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
9109 {
9110         dma_free_coherent(&phba->pcidev->dev,
9111                           phba->sli4_hba.bmbx.bmbx_size,
9112                           phba->sli4_hba.bmbx.dmabuf->virt,
9113                           phba->sli4_hba.bmbx.dmabuf->phys);
9114
9115         kfree(phba->sli4_hba.bmbx.dmabuf);
9116         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
9117 }
9118
9119 static const char * const lpfc_topo_to_str[] = {
9120         "Loop then P2P",
9121         "Loopback",
9122         "P2P Only",
9123         "Unsupported",
9124         "Loop Only",
9125         "Unsupported",
9126         "P2P then Loop",
9127 };
9128
9129 #define LINK_FLAGS_DEF  0x0
9130 #define LINK_FLAGS_P2P  0x1
9131 #define LINK_FLAGS_LOOP 0x2
9132 /**
9133  * lpfc_map_topology - Map the topology read from READ_CONFIG
9134  * @phba: pointer to lpfc hba data structure.
9135  * @rd_config: pointer to read config data
9136  *
9137  * This routine is invoked to map the topology values as read
9138  * from the read config mailbox command. If the persistent
9139  * topology feature is supported, the firmware will provide the
9140  * saved topology information to be used in INIT_LINK
9141  **/
9142 static void
9143 lpfc_map_topology(struct lpfc_hba *phba, struct lpfc_mbx_read_config *rd_config)
9144 {
9145         u8 ptv, tf, pt;
9146
9147         ptv = bf_get(lpfc_mbx_rd_conf_ptv, rd_config);
9148         tf = bf_get(lpfc_mbx_rd_conf_tf, rd_config);
9149         pt = bf_get(lpfc_mbx_rd_conf_pt, rd_config);
9150
9151         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9152                         "2027 Read Config Data : ptv:0x%x, tf:0x%x pt:0x%x",
9153                          ptv, tf, pt);
9154         if (!ptv) {
9155                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9156                                 "2019 FW does not support persistent topology "
9157                                 "Using driver parameter defined value [%s]",
9158                                 lpfc_topo_to_str[phba->cfg_topology]);
9159                 return;
9160         }
9161         /* FW supports persistent topology - override module parameter value */
9162         phba->hba_flag |= HBA_PERSISTENT_TOPO;
9163
9164         /* if ASIC_GEN_NUM >= 0xC) */
9165         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
9166                     LPFC_SLI_INTF_IF_TYPE_6) ||
9167             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
9168                     LPFC_SLI_INTF_FAMILY_G6)) {
9169                 if (!tf) {
9170                         phba->cfg_topology = ((pt == LINK_FLAGS_LOOP)
9171                                         ? FLAGS_TOPOLOGY_MODE_LOOP
9172                                         : FLAGS_TOPOLOGY_MODE_PT_PT);
9173                 } else {
9174                         phba->hba_flag &= ~HBA_PERSISTENT_TOPO;
9175                 }
9176         } else { /* G5 */
9177                 if (tf) {
9178                         /* If topology failover set - pt is '0' or '1' */
9179                         phba->cfg_topology = (pt ? FLAGS_TOPOLOGY_MODE_PT_LOOP :
9180                                               FLAGS_TOPOLOGY_MODE_LOOP_PT);
9181                 } else {
9182                         phba->cfg_topology = ((pt == LINK_FLAGS_P2P)
9183                                         ? FLAGS_TOPOLOGY_MODE_PT_PT
9184                                         : FLAGS_TOPOLOGY_MODE_LOOP);
9185                 }
9186         }
9187         if (phba->hba_flag & HBA_PERSISTENT_TOPO) {
9188                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9189                                 "2020 Using persistent topology value [%s]",
9190                                 lpfc_topo_to_str[phba->cfg_topology]);
9191         } else {
9192                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9193                                 "2021 Invalid topology values from FW "
9194                                 "Using driver parameter defined value [%s]",
9195                                 lpfc_topo_to_str[phba->cfg_topology]);
9196         }
9197 }
9198
9199 /**
9200  * lpfc_sli4_read_config - Get the config parameters.
9201  * @phba: pointer to lpfc hba data structure.
9202  *
9203  * This routine is invoked to read the configuration parameters from the HBA.
9204  * The configuration parameters are used to set the base and maximum values
9205  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
9206  * allocation for the port.
9207  *
9208  * Return codes
9209  *      0 - successful
9210  *      -ENOMEM - No available memory
9211  *      -EIO - The mailbox failed to complete successfully.
9212  **/
9213 int
9214 lpfc_sli4_read_config(struct lpfc_hba *phba)
9215 {
9216         LPFC_MBOXQ_t *pmb;
9217         struct lpfc_mbx_read_config *rd_config;
9218         union  lpfc_sli4_cfg_shdr *shdr;
9219         uint32_t shdr_status, shdr_add_status;
9220         struct lpfc_mbx_get_func_cfg *get_func_cfg;
9221         struct lpfc_rsrc_desc_fcfcoe *desc;
9222         char *pdesc_0;
9223         uint16_t forced_link_speed;
9224         uint32_t if_type, qmin;
9225         int length, i, rc = 0, rc2;
9226
9227         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9228         if (!pmb) {
9229                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9230                                 "2011 Unable to allocate memory for issuing "
9231                                 "SLI_CONFIG_SPECIAL mailbox command\n");
9232                 return -ENOMEM;
9233         }
9234
9235         lpfc_read_config(phba, pmb);
9236
9237         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9238         if (rc != MBX_SUCCESS) {
9239                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9240                                 "2012 Mailbox failed , mbxCmd x%x "
9241                                 "READ_CONFIG, mbxStatus x%x\n",
9242                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
9243                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
9244                 rc = -EIO;
9245         } else {
9246                 rd_config = &pmb->u.mqe.un.rd_config;
9247                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
9248                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
9249                         phba->sli4_hba.lnk_info.lnk_tp =
9250                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
9251                         phba->sli4_hba.lnk_info.lnk_no =
9252                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
9253                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9254                                         "3081 lnk_type:%d, lnk_numb:%d\n",
9255                                         phba->sli4_hba.lnk_info.lnk_tp,
9256                                         phba->sli4_hba.lnk_info.lnk_no);
9257                 } else
9258                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9259                                         "3082 Mailbox (x%x) returned ldv:x0\n",
9260                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
9261                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
9262                         phba->bbcredit_support = 1;
9263                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
9264                 }
9265
9266                 phba->sli4_hba.conf_trunk =
9267                         bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
9268                 phba->sli4_hba.extents_in_use =
9269                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
9270                 phba->sli4_hba.max_cfg_param.max_xri =
9271                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
9272                 /* Reduce resource usage in kdump environment */
9273                 if (is_kdump_kernel() &&
9274                     phba->sli4_hba.max_cfg_param.max_xri > 512)
9275                         phba->sli4_hba.max_cfg_param.max_xri = 512;
9276                 phba->sli4_hba.max_cfg_param.xri_base =
9277                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
9278                 phba->sli4_hba.max_cfg_param.max_vpi =
9279                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
9280                 /* Limit the max we support */
9281                 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
9282                         phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
9283                 phba->sli4_hba.max_cfg_param.vpi_base =
9284                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
9285                 phba->sli4_hba.max_cfg_param.max_rpi =
9286                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
9287                 phba->sli4_hba.max_cfg_param.rpi_base =
9288                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
9289                 phba->sli4_hba.max_cfg_param.max_vfi =
9290                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
9291                 phba->sli4_hba.max_cfg_param.vfi_base =
9292                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
9293                 phba->sli4_hba.max_cfg_param.max_fcfi =
9294                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
9295                 phba->sli4_hba.max_cfg_param.max_eq =
9296                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
9297                 phba->sli4_hba.max_cfg_param.max_rq =
9298                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
9299                 phba->sli4_hba.max_cfg_param.max_wq =
9300                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
9301                 phba->sli4_hba.max_cfg_param.max_cq =
9302                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
9303                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
9304                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
9305                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
9306                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
9307                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
9308                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
9309                 phba->max_vports = phba->max_vpi;
9310
9311                 /* Next decide on FPIN or Signal E2E CGN support
9312                  * For congestion alarms and warnings valid combination are:
9313                  * 1. FPIN alarms / FPIN warnings
9314                  * 2. Signal alarms / Signal warnings
9315                  * 3. FPIN alarms / Signal warnings
9316                  * 4. Signal alarms / FPIN warnings
9317                  *
9318                  * Initialize the adapter frequency to 100 mSecs
9319                  */
9320                 phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
9321                 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
9322                 phba->cgn_sig_freq = lpfc_fabric_cgn_frequency;
9323
9324                 if (lpfc_use_cgn_signal) {
9325                         if (bf_get(lpfc_mbx_rd_conf_wcs, rd_config)) {
9326                                 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY;
9327                                 phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN;
9328                         }
9329                         if (bf_get(lpfc_mbx_rd_conf_acs, rd_config)) {
9330                                 /* MUST support both alarm and warning
9331                                  * because EDC does not support alarm alone.
9332                                  */
9333                                 if (phba->cgn_reg_signal !=
9334                                     EDC_CG_SIG_WARN_ONLY) {
9335                                         /* Must support both or none */
9336                                         phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
9337                                         phba->cgn_reg_signal =
9338                                                 EDC_CG_SIG_NOTSUPPORTED;
9339                                 } else {
9340                                         phba->cgn_reg_signal =
9341                                                 EDC_CG_SIG_WARN_ALARM;
9342                                         phba->cgn_reg_fpin =
9343                                                 LPFC_CGN_FPIN_NONE;
9344                                 }
9345                         }
9346                 }
9347
9348                 /* Set the congestion initial signal and fpin values. */
9349                 phba->cgn_init_reg_fpin = phba->cgn_reg_fpin;
9350                 phba->cgn_init_reg_signal = phba->cgn_reg_signal;
9351
9352                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
9353                                 "6446 READ_CONFIG reg_sig x%x reg_fpin:x%x\n",
9354                                 phba->cgn_reg_signal, phba->cgn_reg_fpin);
9355
9356                 lpfc_map_topology(phba, rd_config);
9357                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9358                                 "2003 cfg params Extents? %d "
9359                                 "XRI(B:%d M:%d), "
9360                                 "VPI(B:%d M:%d) "
9361                                 "VFI(B:%d M:%d) "
9362                                 "RPI(B:%d M:%d) "
9363                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d lmt:x%x\n",
9364                                 phba->sli4_hba.extents_in_use,
9365                                 phba->sli4_hba.max_cfg_param.xri_base,
9366                                 phba->sli4_hba.max_cfg_param.max_xri,
9367                                 phba->sli4_hba.max_cfg_param.vpi_base,
9368                                 phba->sli4_hba.max_cfg_param.max_vpi,
9369                                 phba->sli4_hba.max_cfg_param.vfi_base,
9370                                 phba->sli4_hba.max_cfg_param.max_vfi,
9371                                 phba->sli4_hba.max_cfg_param.rpi_base,
9372                                 phba->sli4_hba.max_cfg_param.max_rpi,
9373                                 phba->sli4_hba.max_cfg_param.max_fcfi,
9374                                 phba->sli4_hba.max_cfg_param.max_eq,
9375                                 phba->sli4_hba.max_cfg_param.max_cq,
9376                                 phba->sli4_hba.max_cfg_param.max_wq,
9377                                 phba->sli4_hba.max_cfg_param.max_rq,
9378                                 phba->lmt);
9379
9380                 /*
9381                  * Calculate queue resources based on how
9382                  * many WQ/CQ/EQs are available.
9383                  */
9384                 qmin = phba->sli4_hba.max_cfg_param.max_wq;
9385                 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
9386                         qmin = phba->sli4_hba.max_cfg_param.max_cq;
9387                 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
9388                         qmin = phba->sli4_hba.max_cfg_param.max_eq;
9389                 /*
9390                  * Whats left after this can go toward NVME / FCP.
9391                  * The minus 4 accounts for ELS, NVME LS, MBOX
9392                  * plus one extra. When configured for
9393                  * NVMET, FCP io channel WQs are not created.
9394                  */
9395                 qmin -= 4;
9396
9397                 /* Check to see if there is enough for NVME */
9398                 if ((phba->cfg_irq_chann > qmin) ||
9399                     (phba->cfg_hdw_queue > qmin)) {
9400                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9401                                         "2005 Reducing Queues - "
9402                                         "FW resource limitation: "
9403                                         "WQ %d CQ %d EQ %d: min %d: "
9404                                         "IRQ %d HDWQ %d\n",
9405                                         phba->sli4_hba.max_cfg_param.max_wq,
9406                                         phba->sli4_hba.max_cfg_param.max_cq,
9407                                         phba->sli4_hba.max_cfg_param.max_eq,
9408                                         qmin, phba->cfg_irq_chann,
9409                                         phba->cfg_hdw_queue);
9410
9411                         if (phba->cfg_irq_chann > qmin)
9412                                 phba->cfg_irq_chann = qmin;
9413                         if (phba->cfg_hdw_queue > qmin)
9414                                 phba->cfg_hdw_queue = qmin;
9415                 }
9416         }
9417
9418         if (rc)
9419                 goto read_cfg_out;
9420
9421         /* Update link speed if forced link speed is supported */
9422         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9423         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9424                 forced_link_speed =
9425                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
9426                 if (forced_link_speed) {
9427                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
9428
9429                         switch (forced_link_speed) {
9430                         case LINK_SPEED_1G:
9431                                 phba->cfg_link_speed =
9432                                         LPFC_USER_LINK_SPEED_1G;
9433                                 break;
9434                         case LINK_SPEED_2G:
9435                                 phba->cfg_link_speed =
9436                                         LPFC_USER_LINK_SPEED_2G;
9437                                 break;
9438                         case LINK_SPEED_4G:
9439                                 phba->cfg_link_speed =
9440                                         LPFC_USER_LINK_SPEED_4G;
9441                                 break;
9442                         case LINK_SPEED_8G:
9443                                 phba->cfg_link_speed =
9444                                         LPFC_USER_LINK_SPEED_8G;
9445                                 break;
9446                         case LINK_SPEED_10G:
9447                                 phba->cfg_link_speed =
9448                                         LPFC_USER_LINK_SPEED_10G;
9449                                 break;
9450                         case LINK_SPEED_16G:
9451                                 phba->cfg_link_speed =
9452                                         LPFC_USER_LINK_SPEED_16G;
9453                                 break;
9454                         case LINK_SPEED_32G:
9455                                 phba->cfg_link_speed =
9456                                         LPFC_USER_LINK_SPEED_32G;
9457                                 break;
9458                         case LINK_SPEED_64G:
9459                                 phba->cfg_link_speed =
9460                                         LPFC_USER_LINK_SPEED_64G;
9461                                 break;
9462                         case 0xffff:
9463                                 phba->cfg_link_speed =
9464                                         LPFC_USER_LINK_SPEED_AUTO;
9465                                 break;
9466                         default:
9467                                 lpfc_printf_log(phba, KERN_ERR,
9468                                                 LOG_TRACE_EVENT,
9469                                                 "0047 Unrecognized link "
9470                                                 "speed : %d\n",
9471                                                 forced_link_speed);
9472                                 phba->cfg_link_speed =
9473                                         LPFC_USER_LINK_SPEED_AUTO;
9474                         }
9475                 }
9476         }
9477
9478         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
9479         length = phba->sli4_hba.max_cfg_param.max_xri -
9480                         lpfc_sli4_get_els_iocb_cnt(phba);
9481         if (phba->cfg_hba_queue_depth > length) {
9482                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9483                                 "3361 HBA queue depth changed from %d to %d\n",
9484                                 phba->cfg_hba_queue_depth, length);
9485                 phba->cfg_hba_queue_depth = length;
9486         }
9487
9488         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
9489             LPFC_SLI_INTF_IF_TYPE_2)
9490                 goto read_cfg_out;
9491
9492         /* get the pf# and vf# for SLI4 if_type 2 port */
9493         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
9494                   sizeof(struct lpfc_sli4_cfg_mhdr));
9495         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
9496                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
9497                          length, LPFC_SLI4_MBX_EMBED);
9498
9499         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9500         shdr = (union lpfc_sli4_cfg_shdr *)
9501                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
9502         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9503         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9504         if (rc2 || shdr_status || shdr_add_status) {
9505                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9506                                 "3026 Mailbox failed , mbxCmd x%x "
9507                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
9508                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
9509                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
9510                 goto read_cfg_out;
9511         }
9512
9513         /* search for fc_fcoe resrouce descriptor */
9514         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
9515
9516         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
9517         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
9518         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
9519         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
9520                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
9521         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
9522                 goto read_cfg_out;
9523
9524         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
9525                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
9526                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
9527                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
9528                         phba->sli4_hba.iov.pf_number =
9529                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
9530                         phba->sli4_hba.iov.vf_number =
9531                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
9532                         break;
9533                 }
9534         }
9535
9536         if (i < LPFC_RSRC_DESC_MAX_NUM)
9537                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9538                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
9539                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
9540                                 phba->sli4_hba.iov.vf_number);
9541         else
9542                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9543                                 "3028 GET_FUNCTION_CONFIG: failed to find "
9544                                 "Resource Descriptor:x%x\n",
9545                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
9546
9547 read_cfg_out:
9548         mempool_free(pmb, phba->mbox_mem_pool);
9549         return rc;
9550 }
9551
9552 /**
9553  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
9554  * @phba: pointer to lpfc hba data structure.
9555  *
9556  * This routine is invoked to setup the port-side endian order when
9557  * the port if_type is 0.  This routine has no function for other
9558  * if_types.
9559  *
9560  * Return codes
9561  *      0 - successful
9562  *      -ENOMEM - No available memory
9563  *      -EIO - The mailbox failed to complete successfully.
9564  **/
9565 static int
9566 lpfc_setup_endian_order(struct lpfc_hba *phba)
9567 {
9568         LPFC_MBOXQ_t *mboxq;
9569         uint32_t if_type, rc = 0;
9570         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
9571                                       HOST_ENDIAN_HIGH_WORD1};
9572
9573         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9574         switch (if_type) {
9575         case LPFC_SLI_INTF_IF_TYPE_0:
9576                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
9577                                                        GFP_KERNEL);
9578                 if (!mboxq) {
9579                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9580                                         "0492 Unable to allocate memory for "
9581                                         "issuing SLI_CONFIG_SPECIAL mailbox "
9582                                         "command\n");
9583                         return -ENOMEM;
9584                 }
9585
9586                 /*
9587                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
9588                  * two words to contain special data values and no other data.
9589                  */
9590                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
9591                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
9592                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9593                 if (rc != MBX_SUCCESS) {
9594                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9595                                         "0493 SLI_CONFIG_SPECIAL mailbox "
9596                                         "failed with status x%x\n",
9597                                         rc);
9598                         rc = -EIO;
9599                 }
9600                 mempool_free(mboxq, phba->mbox_mem_pool);
9601                 break;
9602         case LPFC_SLI_INTF_IF_TYPE_6:
9603         case LPFC_SLI_INTF_IF_TYPE_2:
9604         case LPFC_SLI_INTF_IF_TYPE_1:
9605         default:
9606                 break;
9607         }
9608         return rc;
9609 }
9610
9611 /**
9612  * lpfc_sli4_queue_verify - Verify and update EQ counts
9613  * @phba: pointer to lpfc hba data structure.
9614  *
9615  * This routine is invoked to check the user settable queue counts for EQs.
9616  * After this routine is called the counts will be set to valid values that
9617  * adhere to the constraints of the system's interrupt vectors and the port's
9618  * queue resources.
9619  *
9620  * Return codes
9621  *      0 - successful
9622  *      -ENOMEM - No available memory
9623  **/
9624 static int
9625 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
9626 {
9627         /*
9628          * Sanity check for configured queue parameters against the run-time
9629          * device parameters
9630          */
9631
9632         if (phba->nvmet_support) {
9633                 if (phba->cfg_hdw_queue < phba->cfg_nvmet_mrq)
9634                         phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
9635                 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
9636                         phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
9637         }
9638
9639         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9640                         "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
9641                         phba->cfg_hdw_queue, phba->cfg_irq_chann,
9642                         phba->cfg_nvmet_mrq);
9643
9644         /* Get EQ depth from module parameter, fake the default for now */
9645         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
9646         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
9647
9648         /* Get CQ depth from module parameter, fake the default for now */
9649         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
9650         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
9651         return 0;
9652 }
9653
9654 static int
9655 lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx)
9656 {
9657         struct lpfc_queue *qdesc;
9658         u32 wqesize;
9659         int cpu;
9660
9661         cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ);
9662         /* Create Fast Path IO CQs */
9663         if (phba->enab_exp_wqcq_pages)
9664                 /* Increase the CQ size when WQEs contain an embedded cdb */
9665                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
9666                                               phba->sli4_hba.cq_esize,
9667                                               LPFC_CQE_EXP_COUNT, cpu);
9668
9669         else
9670                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9671                                               phba->sli4_hba.cq_esize,
9672                                               phba->sli4_hba.cq_ecount, cpu);
9673         if (!qdesc) {
9674                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9675                                 "0499 Failed allocate fast-path IO CQ (%d)\n",
9676                                 idx);
9677                 return 1;
9678         }
9679         qdesc->qe_valid = 1;
9680         qdesc->hdwq = idx;
9681         qdesc->chann = cpu;
9682         phba->sli4_hba.hdwq[idx].io_cq = qdesc;
9683
9684         /* Create Fast Path IO WQs */
9685         if (phba->enab_exp_wqcq_pages) {
9686                 /* Increase the WQ size when WQEs contain an embedded cdb */
9687                 wqesize = (phba->fcp_embed_io) ?
9688                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
9689                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
9690                                               wqesize,
9691                                               LPFC_WQE_EXP_COUNT, cpu);
9692         } else
9693                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9694                                               phba->sli4_hba.wq_esize,
9695                                               phba->sli4_hba.wq_ecount, cpu);
9696
9697         if (!qdesc) {
9698                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9699                                 "0503 Failed allocate fast-path IO WQ (%d)\n",
9700                                 idx);
9701                 return 1;
9702         }
9703         qdesc->hdwq = idx;
9704         qdesc->chann = cpu;
9705         phba->sli4_hba.hdwq[idx].io_wq = qdesc;
9706         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
9707         return 0;
9708 }
9709
9710 /**
9711  * lpfc_sli4_queue_create - Create all the SLI4 queues
9712  * @phba: pointer to lpfc hba data structure.
9713  *
9714  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
9715  * operation. For each SLI4 queue type, the parameters such as queue entry
9716  * count (queue depth) shall be taken from the module parameter. For now,
9717  * we just use some constant number as place holder.
9718  *
9719  * Return codes
9720  *      0 - successful
9721  *      -ENOMEM - No availble memory
9722  *      -EIO - The mailbox failed to complete successfully.
9723  **/
9724 int
9725 lpfc_sli4_queue_create(struct lpfc_hba *phba)
9726 {
9727         struct lpfc_queue *qdesc;
9728         int idx, cpu, eqcpu;
9729         struct lpfc_sli4_hdw_queue *qp;
9730         struct lpfc_vector_map_info *cpup;
9731         struct lpfc_vector_map_info *eqcpup;
9732         struct lpfc_eq_intr_info *eqi;
9733
9734         /*
9735          * Create HBA Record arrays.
9736          * Both NVME and FCP will share that same vectors / EQs
9737          */
9738         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
9739         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
9740         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
9741         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
9742         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
9743         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
9744         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
9745         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
9746         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
9747         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
9748
9749         if (!phba->sli4_hba.hdwq) {
9750                 phba->sli4_hba.hdwq = kcalloc(
9751                         phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
9752                         GFP_KERNEL);
9753                 if (!phba->sli4_hba.hdwq) {
9754                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9755                                         "6427 Failed allocate memory for "
9756                                         "fast-path Hardware Queue array\n");
9757                         goto out_error;
9758                 }
9759                 /* Prepare hardware queues to take IO buffers */
9760                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9761                         qp = &phba->sli4_hba.hdwq[idx];
9762                         spin_lock_init(&qp->io_buf_list_get_lock);
9763                         spin_lock_init(&qp->io_buf_list_put_lock);
9764                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
9765                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
9766                         qp->get_io_bufs = 0;
9767                         qp->put_io_bufs = 0;
9768                         qp->total_io_bufs = 0;
9769                         spin_lock_init(&qp->abts_io_buf_list_lock);
9770                         INIT_LIST_HEAD(&qp->lpfc_abts_io_buf_list);
9771                         qp->abts_scsi_io_bufs = 0;
9772                         qp->abts_nvme_io_bufs = 0;
9773                         INIT_LIST_HEAD(&qp->sgl_list);
9774                         INIT_LIST_HEAD(&qp->cmd_rsp_buf_list);
9775                         spin_lock_init(&qp->hdwq_lock);
9776                 }
9777         }
9778
9779         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9780                 if (phba->nvmet_support) {
9781                         phba->sli4_hba.nvmet_cqset = kcalloc(
9782                                         phba->cfg_nvmet_mrq,
9783                                         sizeof(struct lpfc_queue *),
9784                                         GFP_KERNEL);
9785                         if (!phba->sli4_hba.nvmet_cqset) {
9786                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9787                                         "3121 Fail allocate memory for "
9788                                         "fast-path CQ set array\n");
9789                                 goto out_error;
9790                         }
9791                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
9792                                         phba->cfg_nvmet_mrq,
9793                                         sizeof(struct lpfc_queue *),
9794                                         GFP_KERNEL);
9795                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
9796                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9797                                         "3122 Fail allocate memory for "
9798                                         "fast-path RQ set hdr array\n");
9799                                 goto out_error;
9800                         }
9801                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
9802                                         phba->cfg_nvmet_mrq,
9803                                         sizeof(struct lpfc_queue *),
9804                                         GFP_KERNEL);
9805                         if (!phba->sli4_hba.nvmet_mrq_data) {
9806                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9807                                         "3124 Fail allocate memory for "
9808                                         "fast-path RQ set data array\n");
9809                                 goto out_error;
9810                         }
9811                 }
9812         }
9813
9814         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
9815
9816         /* Create HBA Event Queues (EQs) */
9817         for_each_present_cpu(cpu) {
9818                 /* We only want to create 1 EQ per vector, even though
9819                  * multiple CPUs might be using that vector. so only
9820                  * selects the CPUs that are LPFC_CPU_FIRST_IRQ.
9821                  */
9822                 cpup = &phba->sli4_hba.cpu_map[cpu];
9823                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
9824                         continue;
9825
9826                 /* Get a ptr to the Hardware Queue associated with this CPU */
9827                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
9828
9829                 /* Allocate an EQ */
9830                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9831                                               phba->sli4_hba.eq_esize,
9832                                               phba->sli4_hba.eq_ecount, cpu);
9833                 if (!qdesc) {
9834                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9835                                         "0497 Failed allocate EQ (%d)\n",
9836                                         cpup->hdwq);
9837                         goto out_error;
9838                 }
9839                 qdesc->qe_valid = 1;
9840                 qdesc->hdwq = cpup->hdwq;
9841                 qdesc->chann = cpu; /* First CPU this EQ is affinitized to */
9842                 qdesc->last_cpu = qdesc->chann;
9843
9844                 /* Save the allocated EQ in the Hardware Queue */
9845                 qp->hba_eq = qdesc;
9846
9847                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
9848                 list_add(&qdesc->cpu_list, &eqi->list);
9849         }
9850
9851         /* Now we need to populate the other Hardware Queues, that share
9852          * an IRQ vector, with the associated EQ ptr.
9853          */
9854         for_each_present_cpu(cpu) {
9855                 cpup = &phba->sli4_hba.cpu_map[cpu];
9856
9857                 /* Check for EQ already allocated in previous loop */
9858                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
9859                         continue;
9860
9861                 /* Check for multiple CPUs per hdwq */
9862                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
9863                 if (qp->hba_eq)
9864                         continue;
9865
9866                 /* We need to share an EQ for this hdwq */
9867                 eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
9868                 eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
9869                 qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
9870         }
9871
9872         /* Allocate IO Path SLI4 CQ/WQs */
9873         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9874                 if (lpfc_alloc_io_wq_cq(phba, idx))
9875                         goto out_error;
9876         }
9877
9878         if (phba->nvmet_support) {
9879                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
9880                         cpu = lpfc_find_cpu_handle(phba, idx,
9881                                                    LPFC_FIND_BY_HDWQ);
9882                         qdesc = lpfc_sli4_queue_alloc(phba,
9883                                                       LPFC_DEFAULT_PAGE_SIZE,
9884                                                       phba->sli4_hba.cq_esize,
9885                                                       phba->sli4_hba.cq_ecount,
9886                                                       cpu);
9887                         if (!qdesc) {
9888                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9889                                                 "3142 Failed allocate NVME "
9890                                                 "CQ Set (%d)\n", idx);
9891                                 goto out_error;
9892                         }
9893                         qdesc->qe_valid = 1;
9894                         qdesc->hdwq = idx;
9895                         qdesc->chann = cpu;
9896                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
9897                 }
9898         }
9899
9900         /*
9901          * Create Slow Path Completion Queues (CQs)
9902          */
9903
9904         cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
9905         /* Create slow-path Mailbox Command Complete Queue */
9906         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9907                                       phba->sli4_hba.cq_esize,
9908                                       phba->sli4_hba.cq_ecount, cpu);
9909         if (!qdesc) {
9910                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9911                                 "0500 Failed allocate slow-path mailbox CQ\n");
9912                 goto out_error;
9913         }
9914         qdesc->qe_valid = 1;
9915         phba->sli4_hba.mbx_cq = qdesc;
9916
9917         /* Create slow-path ELS Complete Queue */
9918         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9919                                       phba->sli4_hba.cq_esize,
9920                                       phba->sli4_hba.cq_ecount, cpu);
9921         if (!qdesc) {
9922                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9923                                 "0501 Failed allocate slow-path ELS CQ\n");
9924                 goto out_error;
9925         }
9926         qdesc->qe_valid = 1;
9927         qdesc->chann = cpu;
9928         phba->sli4_hba.els_cq = qdesc;
9929
9930
9931         /*
9932          * Create Slow Path Work Queues (WQs)
9933          */
9934
9935         /* Create Mailbox Command Queue */
9936
9937         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9938                                       phba->sli4_hba.mq_esize,
9939                                       phba->sli4_hba.mq_ecount, cpu);
9940         if (!qdesc) {
9941                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9942                                 "0505 Failed allocate slow-path MQ\n");
9943                 goto out_error;
9944         }
9945         qdesc->chann = cpu;
9946         phba->sli4_hba.mbx_wq = qdesc;
9947
9948         /*
9949          * Create ELS Work Queues
9950          */
9951
9952         /* Create slow-path ELS Work Queue */
9953         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9954                                       phba->sli4_hba.wq_esize,
9955                                       phba->sli4_hba.wq_ecount, cpu);
9956         if (!qdesc) {
9957                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9958                                 "0504 Failed allocate slow-path ELS WQ\n");
9959                 goto out_error;
9960         }
9961         qdesc->chann = cpu;
9962         phba->sli4_hba.els_wq = qdesc;
9963         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
9964
9965         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9966                 /* Create NVME LS Complete Queue */
9967                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9968                                               phba->sli4_hba.cq_esize,
9969                                               phba->sli4_hba.cq_ecount, cpu);
9970                 if (!qdesc) {
9971                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9972                                         "6079 Failed allocate NVME LS CQ\n");
9973                         goto out_error;
9974                 }
9975                 qdesc->chann = cpu;
9976                 qdesc->qe_valid = 1;
9977                 phba->sli4_hba.nvmels_cq = qdesc;
9978
9979                 /* Create NVME LS Work Queue */
9980                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9981                                               phba->sli4_hba.wq_esize,
9982                                               phba->sli4_hba.wq_ecount, cpu);
9983                 if (!qdesc) {
9984                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9985                                         "6080 Failed allocate NVME LS WQ\n");
9986                         goto out_error;
9987                 }
9988                 qdesc->chann = cpu;
9989                 phba->sli4_hba.nvmels_wq = qdesc;
9990                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
9991         }
9992
9993         /*
9994          * Create Receive Queue (RQ)
9995          */
9996
9997         /* Create Receive Queue for header */
9998         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9999                                       phba->sli4_hba.rq_esize,
10000                                       phba->sli4_hba.rq_ecount, cpu);
10001         if (!qdesc) {
10002                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10003                                 "0506 Failed allocate receive HRQ\n");
10004                 goto out_error;
10005         }
10006         phba->sli4_hba.hdr_rq = qdesc;
10007
10008         /* Create Receive Queue for data */
10009         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10010                                       phba->sli4_hba.rq_esize,
10011                                       phba->sli4_hba.rq_ecount, cpu);
10012         if (!qdesc) {
10013                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10014                                 "0507 Failed allocate receive DRQ\n");
10015                 goto out_error;
10016         }
10017         phba->sli4_hba.dat_rq = qdesc;
10018
10019         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
10020             phba->nvmet_support) {
10021                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
10022                         cpu = lpfc_find_cpu_handle(phba, idx,
10023                                                    LPFC_FIND_BY_HDWQ);
10024                         /* Create NVMET Receive Queue for header */
10025                         qdesc = lpfc_sli4_queue_alloc(phba,
10026                                                       LPFC_DEFAULT_PAGE_SIZE,
10027                                                       phba->sli4_hba.rq_esize,
10028                                                       LPFC_NVMET_RQE_DEF_COUNT,
10029                                                       cpu);
10030                         if (!qdesc) {
10031                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10032                                                 "3146 Failed allocate "
10033                                                 "receive HRQ\n");
10034                                 goto out_error;
10035                         }
10036                         qdesc->hdwq = idx;
10037                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
10038
10039                         /* Only needed for header of RQ pair */
10040                         qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp),
10041                                                    GFP_KERNEL,
10042                                                    cpu_to_node(cpu));
10043                         if (qdesc->rqbp == NULL) {
10044                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10045                                                 "6131 Failed allocate "
10046                                                 "Header RQBP\n");
10047                                 goto out_error;
10048                         }
10049
10050                         /* Put list in known state in case driver load fails. */
10051                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
10052
10053                         /* Create NVMET Receive Queue for data */
10054                         qdesc = lpfc_sli4_queue_alloc(phba,
10055                                                       LPFC_DEFAULT_PAGE_SIZE,
10056                                                       phba->sli4_hba.rq_esize,
10057                                                       LPFC_NVMET_RQE_DEF_COUNT,
10058                                                       cpu);
10059                         if (!qdesc) {
10060                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10061                                                 "3156 Failed allocate "
10062                                                 "receive DRQ\n");
10063                                 goto out_error;
10064                         }
10065                         qdesc->hdwq = idx;
10066                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
10067                 }
10068         }
10069
10070         /* Clear NVME stats */
10071         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10072                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10073                         memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
10074                                sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
10075                 }
10076         }
10077
10078         /* Clear SCSI stats */
10079         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
10080                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10081                         memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
10082                                sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
10083                 }
10084         }
10085
10086         return 0;
10087
10088 out_error:
10089         lpfc_sli4_queue_destroy(phba);
10090         return -ENOMEM;
10091 }
10092
10093 static inline void
10094 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
10095 {
10096         if (*qp != NULL) {
10097                 lpfc_sli4_queue_free(*qp);
10098                 *qp = NULL;
10099         }
10100 }
10101
10102 static inline void
10103 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
10104 {
10105         int idx;
10106
10107         if (*qs == NULL)
10108                 return;
10109
10110         for (idx = 0; idx < max; idx++)
10111                 __lpfc_sli4_release_queue(&(*qs)[idx]);
10112
10113         kfree(*qs);
10114         *qs = NULL;
10115 }
10116
10117 static inline void
10118 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
10119 {
10120         struct lpfc_sli4_hdw_queue *hdwq;
10121         struct lpfc_queue *eq;
10122         uint32_t idx;
10123
10124         hdwq = phba->sli4_hba.hdwq;
10125
10126         /* Loop thru all Hardware Queues */
10127         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10128                 /* Free the CQ/WQ corresponding to the Hardware Queue */
10129                 lpfc_sli4_queue_free(hdwq[idx].io_cq);
10130                 lpfc_sli4_queue_free(hdwq[idx].io_wq);
10131                 hdwq[idx].hba_eq = NULL;
10132                 hdwq[idx].io_cq = NULL;
10133                 hdwq[idx].io_wq = NULL;
10134                 if (phba->cfg_xpsgl && !phba->nvmet_support)
10135                         lpfc_free_sgl_per_hdwq(phba, &hdwq[idx]);
10136                 lpfc_free_cmd_rsp_buf_per_hdwq(phba, &hdwq[idx]);
10137         }
10138         /* Loop thru all IRQ vectors */
10139         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
10140                 /* Free the EQ corresponding to the IRQ vector */
10141                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
10142                 lpfc_sli4_queue_free(eq);
10143                 phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
10144         }
10145 }
10146
10147 /**
10148  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
10149  * @phba: pointer to lpfc hba data structure.
10150  *
10151  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
10152  * operation.
10153  *
10154  * Return codes
10155  *      0 - successful
10156  *      -ENOMEM - No available memory
10157  *      -EIO - The mailbox failed to complete successfully.
10158  **/
10159 void
10160 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
10161 {
10162         /*
10163          * Set FREE_INIT before beginning to free the queues.
10164          * Wait until the users of queues to acknowledge to
10165          * release queues by clearing FREE_WAIT.
10166          */
10167         spin_lock_irq(&phba->hbalock);
10168         phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
10169         while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
10170                 spin_unlock_irq(&phba->hbalock);
10171                 msleep(20);
10172                 spin_lock_irq(&phba->hbalock);
10173         }
10174         spin_unlock_irq(&phba->hbalock);
10175
10176         lpfc_sli4_cleanup_poll_list(phba);
10177
10178         /* Release HBA eqs */
10179         if (phba->sli4_hba.hdwq)
10180                 lpfc_sli4_release_hdwq(phba);
10181
10182         if (phba->nvmet_support) {
10183                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
10184                                          phba->cfg_nvmet_mrq);
10185
10186                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
10187                                          phba->cfg_nvmet_mrq);
10188                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
10189                                          phba->cfg_nvmet_mrq);
10190         }
10191
10192         /* Release mailbox command work queue */
10193         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
10194
10195         /* Release ELS work queue */
10196         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
10197
10198         /* Release ELS work queue */
10199         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
10200
10201         /* Release unsolicited receive queue */
10202         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
10203         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
10204
10205         /* Release ELS complete queue */
10206         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
10207
10208         /* Release NVME LS complete queue */
10209         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
10210
10211         /* Release mailbox command complete queue */
10212         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
10213
10214         /* Everything on this list has been freed */
10215         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
10216
10217         /* Done with freeing the queues */
10218         spin_lock_irq(&phba->hbalock);
10219         phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
10220         spin_unlock_irq(&phba->hbalock);
10221 }
10222
10223 int
10224 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
10225 {
10226         struct lpfc_rqb *rqbp;
10227         struct lpfc_dmabuf *h_buf;
10228         struct rqb_dmabuf *rqb_buffer;
10229
10230         rqbp = rq->rqbp;
10231         while (!list_empty(&rqbp->rqb_buffer_list)) {
10232                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
10233                                  struct lpfc_dmabuf, list);
10234
10235                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
10236                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
10237                 rqbp->buffer_count--;
10238         }
10239         return 1;
10240 }
10241
10242 static int
10243 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
10244         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
10245         int qidx, uint32_t qtype)
10246 {
10247         struct lpfc_sli_ring *pring;
10248         int rc;
10249
10250         if (!eq || !cq || !wq) {
10251                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10252                         "6085 Fast-path %s (%d) not allocated\n",
10253                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
10254                 return -ENOMEM;
10255         }
10256
10257         /* create the Cq first */
10258         rc = lpfc_cq_create(phba, cq, eq,
10259                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
10260         if (rc) {
10261                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10262                                 "6086 Failed setup of CQ (%d), rc = 0x%x\n",
10263                                 qidx, (uint32_t)rc);
10264                 return rc;
10265         }
10266
10267         if (qtype != LPFC_MBOX) {
10268                 /* Setup cq_map for fast lookup */
10269                 if (cq_map)
10270                         *cq_map = cq->queue_id;
10271
10272                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10273                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
10274                         qidx, cq->queue_id, qidx, eq->queue_id);
10275
10276                 /* create the wq */
10277                 rc = lpfc_wq_create(phba, wq, cq, qtype);
10278                 if (rc) {
10279                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10280                                 "4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
10281                                 qidx, (uint32_t)rc);
10282                         /* no need to tear down cq - caller will do so */
10283                         return rc;
10284                 }
10285
10286                 /* Bind this CQ/WQ to the NVME ring */
10287                 pring = wq->pring;
10288                 pring->sli.sli4.wqp = (void *)wq;
10289                 cq->pring = pring;
10290
10291                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10292                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
10293                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
10294         } else {
10295                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
10296                 if (rc) {
10297                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10298                                         "0539 Failed setup of slow-path MQ: "
10299                                         "rc = 0x%x\n", rc);
10300                         /* no need to tear down cq - caller will do so */
10301                         return rc;
10302                 }
10303
10304                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10305                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
10306                         phba->sli4_hba.mbx_wq->queue_id,
10307                         phba->sli4_hba.mbx_cq->queue_id);
10308         }
10309
10310         return 0;
10311 }
10312
10313 /**
10314  * lpfc_setup_cq_lookup - Setup the CQ lookup table
10315  * @phba: pointer to lpfc hba data structure.
10316  *
10317  * This routine will populate the cq_lookup table by all
10318  * available CQ queue_id's.
10319  **/
10320 static void
10321 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
10322 {
10323         struct lpfc_queue *eq, *childq;
10324         int qidx;
10325
10326         memset(phba->sli4_hba.cq_lookup, 0,
10327                (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
10328         /* Loop thru all IRQ vectors */
10329         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
10330                 /* Get the EQ corresponding to the IRQ vector */
10331                 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
10332                 if (!eq)
10333                         continue;
10334                 /* Loop through all CQs associated with that EQ */
10335                 list_for_each_entry(childq, &eq->child_list, list) {
10336                         if (childq->queue_id > phba->sli4_hba.cq_max)
10337                                 continue;
10338                         if (childq->subtype == LPFC_IO)
10339                                 phba->sli4_hba.cq_lookup[childq->queue_id] =
10340                                         childq;
10341                 }
10342         }
10343 }
10344
10345 /**
10346  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
10347  * @phba: pointer to lpfc hba data structure.
10348  *
10349  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
10350  * operation.
10351  *
10352  * Return codes
10353  *      0 - successful
10354  *      -ENOMEM - No available memory
10355  *      -EIO - The mailbox failed to complete successfully.
10356  **/
10357 int
10358 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
10359 {
10360         uint32_t shdr_status, shdr_add_status;
10361         union lpfc_sli4_cfg_shdr *shdr;
10362         struct lpfc_vector_map_info *cpup;
10363         struct lpfc_sli4_hdw_queue *qp;
10364         LPFC_MBOXQ_t *mboxq;
10365         int qidx, cpu;
10366         uint32_t length, usdelay;
10367         int rc = -ENOMEM;
10368
10369         /* Check for dual-ULP support */
10370         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10371         if (!mboxq) {
10372                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10373                                 "3249 Unable to allocate memory for "
10374                                 "QUERY_FW_CFG mailbox command\n");
10375                 return -ENOMEM;
10376         }
10377         length = (sizeof(struct lpfc_mbx_query_fw_config) -
10378                   sizeof(struct lpfc_sli4_cfg_mhdr));
10379         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10380                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
10381                          length, LPFC_SLI4_MBX_EMBED);
10382
10383         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10384
10385         shdr = (union lpfc_sli4_cfg_shdr *)
10386                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
10387         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10388         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10389         if (shdr_status || shdr_add_status || rc) {
10390                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10391                                 "3250 QUERY_FW_CFG mailbox failed with status "
10392                                 "x%x add_status x%x, mbx status x%x\n",
10393                                 shdr_status, shdr_add_status, rc);
10394                 mempool_free(mboxq, phba->mbox_mem_pool);
10395                 rc = -ENXIO;
10396                 goto out_error;
10397         }
10398
10399         phba->sli4_hba.fw_func_mode =
10400                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
10401         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
10402         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
10403         phba->sli4_hba.physical_port =
10404                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
10405         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10406                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
10407                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
10408                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
10409
10410         mempool_free(mboxq, phba->mbox_mem_pool);
10411
10412         /*
10413          * Set up HBA Event Queues (EQs)
10414          */
10415         qp = phba->sli4_hba.hdwq;
10416
10417         /* Set up HBA event queue */
10418         if (!qp) {
10419                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10420                                 "3147 Fast-path EQs not allocated\n");
10421                 rc = -ENOMEM;
10422                 goto out_error;
10423         }
10424
10425         /* Loop thru all IRQ vectors */
10426         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
10427                 /* Create HBA Event Queues (EQs) in order */
10428                 for_each_present_cpu(cpu) {
10429                         cpup = &phba->sli4_hba.cpu_map[cpu];
10430
10431                         /* Look for the CPU thats using that vector with
10432                          * LPFC_CPU_FIRST_IRQ set.
10433                          */
10434                         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
10435                                 continue;
10436                         if (qidx != cpup->eq)
10437                                 continue;
10438
10439                         /* Create an EQ for that vector */
10440                         rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
10441                                             phba->cfg_fcp_imax);
10442                         if (rc) {
10443                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10444                                                 "0523 Failed setup of fast-path"
10445                                                 " EQ (%d), rc = 0x%x\n",
10446                                                 cpup->eq, (uint32_t)rc);
10447                                 goto out_destroy;
10448                         }
10449
10450                         /* Save the EQ for that vector in the hba_eq_hdl */
10451                         phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
10452                                 qp[cpup->hdwq].hba_eq;
10453
10454                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10455                                         "2584 HBA EQ setup: queue[%d]-id=%d\n",
10456                                         cpup->eq,
10457                                         qp[cpup->hdwq].hba_eq->queue_id);
10458                 }
10459         }
10460
10461         /* Loop thru all Hardware Queues */
10462         for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
10463                 cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
10464                 cpup = &phba->sli4_hba.cpu_map[cpu];
10465
10466                 /* Create the CQ/WQ corresponding to the Hardware Queue */
10467                 rc = lpfc_create_wq_cq(phba,
10468                                        phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
10469                                        qp[qidx].io_cq,
10470                                        qp[qidx].io_wq,
10471                                        &phba->sli4_hba.hdwq[qidx].io_cq_map,
10472                                        qidx,
10473                                        LPFC_IO);
10474                 if (rc) {
10475                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10476                                         "0535 Failed to setup fastpath "
10477                                         "IO WQ/CQ (%d), rc = 0x%x\n",
10478                                         qidx, (uint32_t)rc);
10479                         goto out_destroy;
10480                 }
10481         }
10482
10483         /*
10484          * Set up Slow Path Complete Queues (CQs)
10485          */
10486
10487         /* Set up slow-path MBOX CQ/MQ */
10488
10489         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
10490                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10491                                 "0528 %s not allocated\n",
10492                                 phba->sli4_hba.mbx_cq ?
10493                                 "Mailbox WQ" : "Mailbox CQ");
10494                 rc = -ENOMEM;
10495                 goto out_destroy;
10496         }
10497
10498         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
10499                                phba->sli4_hba.mbx_cq,
10500                                phba->sli4_hba.mbx_wq,
10501                                NULL, 0, LPFC_MBOX);
10502         if (rc) {
10503                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10504                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
10505                         (uint32_t)rc);
10506                 goto out_destroy;
10507         }
10508         if (phba->nvmet_support) {
10509                 if (!phba->sli4_hba.nvmet_cqset) {
10510                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10511                                         "3165 Fast-path NVME CQ Set "
10512                                         "array not allocated\n");
10513                         rc = -ENOMEM;
10514                         goto out_destroy;
10515                 }
10516                 if (phba->cfg_nvmet_mrq > 1) {
10517                         rc = lpfc_cq_create_set(phba,
10518                                         phba->sli4_hba.nvmet_cqset,
10519                                         qp,
10520                                         LPFC_WCQ, LPFC_NVMET);
10521                         if (rc) {
10522                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10523                                                 "3164 Failed setup of NVME CQ "
10524                                                 "Set, rc = 0x%x\n",
10525                                                 (uint32_t)rc);
10526                                 goto out_destroy;
10527                         }
10528                 } else {
10529                         /* Set up NVMET Receive Complete Queue */
10530                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
10531                                             qp[0].hba_eq,
10532                                             LPFC_WCQ, LPFC_NVMET);
10533                         if (rc) {
10534                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10535                                                 "6089 Failed setup NVMET CQ: "
10536                                                 "rc = 0x%x\n", (uint32_t)rc);
10537                                 goto out_destroy;
10538                         }
10539                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
10540
10541                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10542                                         "6090 NVMET CQ setup: cq-id=%d, "
10543                                         "parent eq-id=%d\n",
10544                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
10545                                         qp[0].hba_eq->queue_id);
10546                 }
10547         }
10548
10549         /* Set up slow-path ELS WQ/CQ */
10550         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
10551                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10552                                 "0530 ELS %s not allocated\n",
10553                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
10554                 rc = -ENOMEM;
10555                 goto out_destroy;
10556         }
10557         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
10558                                phba->sli4_hba.els_cq,
10559                                phba->sli4_hba.els_wq,
10560                                NULL, 0, LPFC_ELS);
10561         if (rc) {
10562                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10563                                 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
10564                                 (uint32_t)rc);
10565                 goto out_destroy;
10566         }
10567         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10568                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
10569                         phba->sli4_hba.els_wq->queue_id,
10570                         phba->sli4_hba.els_cq->queue_id);
10571
10572         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10573                 /* Set up NVME LS Complete Queue */
10574                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
10575                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10576                                         "6091 LS %s not allocated\n",
10577                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
10578                         rc = -ENOMEM;
10579                         goto out_destroy;
10580                 }
10581                 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
10582                                        phba->sli4_hba.nvmels_cq,
10583                                        phba->sli4_hba.nvmels_wq,
10584                                        NULL, 0, LPFC_NVME_LS);
10585                 if (rc) {
10586                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10587                                         "0526 Failed setup of NVVME LS WQ/CQ: "
10588                                         "rc = 0x%x\n", (uint32_t)rc);
10589                         goto out_destroy;
10590                 }
10591
10592                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10593                                 "6096 ELS WQ setup: wq-id=%d, "
10594                                 "parent cq-id=%d\n",
10595                                 phba->sli4_hba.nvmels_wq->queue_id,
10596                                 phba->sli4_hba.nvmels_cq->queue_id);
10597         }
10598
10599         /*
10600          * Create NVMET Receive Queue (RQ)
10601          */
10602         if (phba->nvmet_support) {
10603                 if ((!phba->sli4_hba.nvmet_cqset) ||
10604                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
10605                     (!phba->sli4_hba.nvmet_mrq_data)) {
10606                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10607                                         "6130 MRQ CQ Queues not "
10608                                         "allocated\n");
10609                         rc = -ENOMEM;
10610                         goto out_destroy;
10611                 }
10612                 if (phba->cfg_nvmet_mrq > 1) {
10613                         rc = lpfc_mrq_create(phba,
10614                                              phba->sli4_hba.nvmet_mrq_hdr,
10615                                              phba->sli4_hba.nvmet_mrq_data,
10616                                              phba->sli4_hba.nvmet_cqset,
10617                                              LPFC_NVMET);
10618                         if (rc) {
10619                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10620                                                 "6098 Failed setup of NVMET "
10621                                                 "MRQ: rc = 0x%x\n",
10622                                                 (uint32_t)rc);
10623                                 goto out_destroy;
10624                         }
10625
10626                 } else {
10627                         rc = lpfc_rq_create(phba,
10628                                             phba->sli4_hba.nvmet_mrq_hdr[0],
10629                                             phba->sli4_hba.nvmet_mrq_data[0],
10630                                             phba->sli4_hba.nvmet_cqset[0],
10631                                             LPFC_NVMET);
10632                         if (rc) {
10633                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10634                                                 "6057 Failed setup of NVMET "
10635                                                 "Receive Queue: rc = 0x%x\n",
10636                                                 (uint32_t)rc);
10637                                 goto out_destroy;
10638                         }
10639
10640                         lpfc_printf_log(
10641                                 phba, KERN_INFO, LOG_INIT,
10642                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
10643                                 "dat-rq-id=%d parent cq-id=%d\n",
10644                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
10645                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
10646                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
10647
10648                 }
10649         }
10650
10651         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
10652                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10653                                 "0540 Receive Queue not allocated\n");
10654                 rc = -ENOMEM;
10655                 goto out_destroy;
10656         }
10657
10658         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
10659                             phba->sli4_hba.els_cq, LPFC_USOL);
10660         if (rc) {
10661                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10662                                 "0541 Failed setup of Receive Queue: "
10663                                 "rc = 0x%x\n", (uint32_t)rc);
10664                 goto out_destroy;
10665         }
10666
10667         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10668                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
10669                         "parent cq-id=%d\n",
10670                         phba->sli4_hba.hdr_rq->queue_id,
10671                         phba->sli4_hba.dat_rq->queue_id,
10672                         phba->sli4_hba.els_cq->queue_id);
10673
10674         if (phba->cfg_fcp_imax)
10675                 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
10676         else
10677                 usdelay = 0;
10678
10679         for (qidx = 0; qidx < phba->cfg_irq_chann;
10680              qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
10681                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
10682                                          usdelay);
10683
10684         if (phba->sli4_hba.cq_max) {
10685                 kfree(phba->sli4_hba.cq_lookup);
10686                 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
10687                         sizeof(struct lpfc_queue *), GFP_KERNEL);
10688                 if (!phba->sli4_hba.cq_lookup) {
10689                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10690                                         "0549 Failed setup of CQ Lookup table: "
10691                                         "size 0x%x\n", phba->sli4_hba.cq_max);
10692                         rc = -ENOMEM;
10693                         goto out_destroy;
10694                 }
10695                 lpfc_setup_cq_lookup(phba);
10696         }
10697         return 0;
10698
10699 out_destroy:
10700         lpfc_sli4_queue_unset(phba);
10701 out_error:
10702         return rc;
10703 }
10704
10705 /**
10706  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
10707  * @phba: pointer to lpfc hba data structure.
10708  *
10709  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
10710  * operation.
10711  *
10712  * Return codes
10713  *      0 - successful
10714  *      -ENOMEM - No available memory
10715  *      -EIO - The mailbox failed to complete successfully.
10716  **/
10717 void
10718 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
10719 {
10720         struct lpfc_sli4_hdw_queue *qp;
10721         struct lpfc_queue *eq;
10722         int qidx;
10723
10724         /* Unset mailbox command work queue */
10725         if (phba->sli4_hba.mbx_wq)
10726                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
10727
10728         /* Unset NVME LS work queue */
10729         if (phba->sli4_hba.nvmels_wq)
10730                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
10731
10732         /* Unset ELS work queue */
10733         if (phba->sli4_hba.els_wq)
10734                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
10735
10736         /* Unset unsolicited receive queue */
10737         if (phba->sli4_hba.hdr_rq)
10738                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
10739                                 phba->sli4_hba.dat_rq);
10740
10741         /* Unset mailbox command complete queue */
10742         if (phba->sli4_hba.mbx_cq)
10743                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
10744
10745         /* Unset ELS complete queue */
10746         if (phba->sli4_hba.els_cq)
10747                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
10748
10749         /* Unset NVME LS complete queue */
10750         if (phba->sli4_hba.nvmels_cq)
10751                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
10752
10753         if (phba->nvmet_support) {
10754                 /* Unset NVMET MRQ queue */
10755                 if (phba->sli4_hba.nvmet_mrq_hdr) {
10756                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
10757                                 lpfc_rq_destroy(
10758                                         phba,
10759                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
10760                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
10761                 }
10762
10763                 /* Unset NVMET CQ Set complete queue */
10764                 if (phba->sli4_hba.nvmet_cqset) {
10765                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
10766                                 lpfc_cq_destroy(
10767                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
10768                 }
10769         }
10770
10771         /* Unset fast-path SLI4 queues */
10772         if (phba->sli4_hba.hdwq) {
10773                 /* Loop thru all Hardware Queues */
10774                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
10775                         /* Destroy the CQ/WQ corresponding to Hardware Queue */
10776                         qp = &phba->sli4_hba.hdwq[qidx];
10777                         lpfc_wq_destroy(phba, qp->io_wq);
10778                         lpfc_cq_destroy(phba, qp->io_cq);
10779                 }
10780                 /* Loop thru all IRQ vectors */
10781                 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
10782                         /* Destroy the EQ corresponding to the IRQ vector */
10783                         eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
10784                         lpfc_eq_destroy(phba, eq);
10785                 }
10786         }
10787
10788         kfree(phba->sli4_hba.cq_lookup);
10789         phba->sli4_hba.cq_lookup = NULL;
10790         phba->sli4_hba.cq_max = 0;
10791 }
10792
10793 /**
10794  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
10795  * @phba: pointer to lpfc hba data structure.
10796  *
10797  * This routine is invoked to allocate and set up a pool of completion queue
10798  * events. The body of the completion queue event is a completion queue entry
10799  * CQE. For now, this pool is used for the interrupt service routine to queue
10800  * the following HBA completion queue events for the worker thread to process:
10801  *   - Mailbox asynchronous events
10802  *   - Receive queue completion unsolicited events
10803  * Later, this can be used for all the slow-path events.
10804  *
10805  * Return codes
10806  *      0 - successful
10807  *      -ENOMEM - No available memory
10808  **/
10809 static int
10810 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
10811 {
10812         struct lpfc_cq_event *cq_event;
10813         int i;
10814
10815         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
10816                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
10817                 if (!cq_event)
10818                         goto out_pool_create_fail;
10819                 list_add_tail(&cq_event->list,
10820                               &phba->sli4_hba.sp_cqe_event_pool);
10821         }
10822         return 0;
10823
10824 out_pool_create_fail:
10825         lpfc_sli4_cq_event_pool_destroy(phba);
10826         return -ENOMEM;
10827 }
10828
10829 /**
10830  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
10831  * @phba: pointer to lpfc hba data structure.
10832  *
10833  * This routine is invoked to free the pool of completion queue events at
10834  * driver unload time. Note that, it is the responsibility of the driver
10835  * cleanup routine to free all the outstanding completion-queue events
10836  * allocated from this pool back into the pool before invoking this routine
10837  * to destroy the pool.
10838  **/
10839 static void
10840 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
10841 {
10842         struct lpfc_cq_event *cq_event, *next_cq_event;
10843
10844         list_for_each_entry_safe(cq_event, next_cq_event,
10845                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
10846                 list_del(&cq_event->list);
10847                 kfree(cq_event);
10848         }
10849 }
10850
10851 /**
10852  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
10853  * @phba: pointer to lpfc hba data structure.
10854  *
10855  * This routine is the lock free version of the API invoked to allocate a
10856  * completion-queue event from the free pool.
10857  *
10858  * Return: Pointer to the newly allocated completion-queue event if successful
10859  *         NULL otherwise.
10860  **/
10861 struct lpfc_cq_event *
10862 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
10863 {
10864         struct lpfc_cq_event *cq_event = NULL;
10865
10866         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
10867                          struct lpfc_cq_event, list);
10868         return cq_event;
10869 }
10870
10871 /**
10872  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
10873  * @phba: pointer to lpfc hba data structure.
10874  *
10875  * This routine is the lock version of the API invoked to allocate a
10876  * completion-queue event from the free pool.
10877  *
10878  * Return: Pointer to the newly allocated completion-queue event if successful
10879  *         NULL otherwise.
10880  **/
10881 struct lpfc_cq_event *
10882 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
10883 {
10884         struct lpfc_cq_event *cq_event;
10885         unsigned long iflags;
10886
10887         spin_lock_irqsave(&phba->hbalock, iflags);
10888         cq_event = __lpfc_sli4_cq_event_alloc(phba);
10889         spin_unlock_irqrestore(&phba->hbalock, iflags);
10890         return cq_event;
10891 }
10892
10893 /**
10894  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
10895  * @phba: pointer to lpfc hba data structure.
10896  * @cq_event: pointer to the completion queue event to be freed.
10897  *
10898  * This routine is the lock free version of the API invoked to release a
10899  * completion-queue event back into the free pool.
10900  **/
10901 void
10902 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
10903                              struct lpfc_cq_event *cq_event)
10904 {
10905         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
10906 }
10907
10908 /**
10909  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
10910  * @phba: pointer to lpfc hba data structure.
10911  * @cq_event: pointer to the completion queue event to be freed.
10912  *
10913  * This routine is the lock version of the API invoked to release a
10914  * completion-queue event back into the free pool.
10915  **/
10916 void
10917 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
10918                            struct lpfc_cq_event *cq_event)
10919 {
10920         unsigned long iflags;
10921         spin_lock_irqsave(&phba->hbalock, iflags);
10922         __lpfc_sli4_cq_event_release(phba, cq_event);
10923         spin_unlock_irqrestore(&phba->hbalock, iflags);
10924 }
10925
10926 /**
10927  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
10928  * @phba: pointer to lpfc hba data structure.
10929  *
10930  * This routine is to free all the pending completion-queue events to the
10931  * back into the free pool for device reset.
10932  **/
10933 static void
10934 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
10935 {
10936         LIST_HEAD(cq_event_list);
10937         struct lpfc_cq_event *cq_event;
10938         unsigned long iflags;
10939
10940         /* Retrieve all the pending WCQEs from pending WCQE lists */
10941
10942         /* Pending ELS XRI abort events */
10943         spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
10944         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
10945                          &cq_event_list);
10946         spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
10947
10948         /* Pending asynnc events */
10949         spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
10950         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
10951                          &cq_event_list);
10952         spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
10953
10954         while (!list_empty(&cq_event_list)) {
10955                 list_remove_head(&cq_event_list, cq_event,
10956                                  struct lpfc_cq_event, list);
10957                 lpfc_sli4_cq_event_release(phba, cq_event);
10958         }
10959 }
10960
10961 /**
10962  * lpfc_pci_function_reset - Reset pci function.
10963  * @phba: pointer to lpfc hba data structure.
10964  *
10965  * This routine is invoked to request a PCI function reset. It will destroys
10966  * all resources assigned to the PCI function which originates this request.
10967  *
10968  * Return codes
10969  *      0 - successful
10970  *      -ENOMEM - No available memory
10971  *      -EIO - The mailbox failed to complete successfully.
10972  **/
10973 int
10974 lpfc_pci_function_reset(struct lpfc_hba *phba)
10975 {
10976         LPFC_MBOXQ_t *mboxq;
10977         uint32_t rc = 0, if_type;
10978         uint32_t shdr_status, shdr_add_status;
10979         uint32_t rdy_chk;
10980         uint32_t port_reset = 0;
10981         union lpfc_sli4_cfg_shdr *shdr;
10982         struct lpfc_register reg_data;
10983         uint16_t devid;
10984
10985         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10986         switch (if_type) {
10987         case LPFC_SLI_INTF_IF_TYPE_0:
10988                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
10989                                                        GFP_KERNEL);
10990                 if (!mboxq) {
10991                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10992                                         "0494 Unable to allocate memory for "
10993                                         "issuing SLI_FUNCTION_RESET mailbox "
10994                                         "command\n");
10995                         return -ENOMEM;
10996                 }
10997
10998                 /* Setup PCI function reset mailbox-ioctl command */
10999                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11000                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
11001                                  LPFC_SLI4_MBX_EMBED);
11002                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11003                 shdr = (union lpfc_sli4_cfg_shdr *)
11004                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
11005                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11006                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
11007                                          &shdr->response);
11008                 mempool_free(mboxq, phba->mbox_mem_pool);
11009                 if (shdr_status || shdr_add_status || rc) {
11010                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11011                                         "0495 SLI_FUNCTION_RESET mailbox "
11012                                         "failed with status x%x add_status x%x,"
11013                                         " mbx status x%x\n",
11014                                         shdr_status, shdr_add_status, rc);
11015                         rc = -ENXIO;
11016                 }
11017                 break;
11018         case LPFC_SLI_INTF_IF_TYPE_2:
11019         case LPFC_SLI_INTF_IF_TYPE_6:
11020 wait:
11021                 /*
11022                  * Poll the Port Status Register and wait for RDY for
11023                  * up to 30 seconds. If the port doesn't respond, treat
11024                  * it as an error.
11025                  */
11026                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
11027                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
11028                                 STATUSregaddr, &reg_data.word0)) {
11029                                 rc = -ENODEV;
11030                                 goto out;
11031                         }
11032                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
11033                                 break;
11034                         msleep(20);
11035                 }
11036
11037                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
11038                         phba->work_status[0] = readl(
11039                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
11040                         phba->work_status[1] = readl(
11041                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
11042                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11043                                         "2890 Port not ready, port status reg "
11044                                         "0x%x error 1=0x%x, error 2=0x%x\n",
11045                                         reg_data.word0,
11046                                         phba->work_status[0],
11047                                         phba->work_status[1]);
11048                         rc = -ENODEV;
11049                         goto out;
11050                 }
11051
11052                 if (!port_reset) {
11053                         /*
11054                          * Reset the port now
11055                          */
11056                         reg_data.word0 = 0;
11057                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
11058                                LPFC_SLIPORT_LITTLE_ENDIAN);
11059                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
11060                                LPFC_SLIPORT_INIT_PORT);
11061                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
11062                                CTRLregaddr);
11063                         /* flush */
11064                         pci_read_config_word(phba->pcidev,
11065                                              PCI_DEVICE_ID, &devid);
11066
11067                         port_reset = 1;
11068                         msleep(20);
11069                         goto wait;
11070                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
11071                         rc = -ENODEV;
11072                         goto out;
11073                 }
11074                 break;
11075
11076         case LPFC_SLI_INTF_IF_TYPE_1:
11077         default:
11078                 break;
11079         }
11080
11081 out:
11082         /* Catch the not-ready port failure after a port reset. */
11083         if (rc) {
11084                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11085                                 "3317 HBA not functional: IP Reset Failed "
11086                                 "try: echo fw_reset > board_mode\n");
11087                 rc = -ENODEV;
11088         }
11089
11090         return rc;
11091 }
11092
11093 /**
11094  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
11095  * @phba: pointer to lpfc hba data structure.
11096  *
11097  * This routine is invoked to set up the PCI device memory space for device
11098  * with SLI-4 interface spec.
11099  *
11100  * Return codes
11101  *      0 - successful
11102  *      other values - error
11103  **/
11104 static int
11105 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
11106 {
11107         struct pci_dev *pdev = phba->pcidev;
11108         unsigned long bar0map_len, bar1map_len, bar2map_len;
11109         int error;
11110         uint32_t if_type;
11111
11112         if (!pdev)
11113                 return -ENODEV;
11114
11115         /* Set the device DMA mask size */
11116         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
11117         if (error)
11118                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
11119         if (error)
11120                 return error;
11121
11122         /*
11123          * The BARs and register set definitions and offset locations are
11124          * dependent on the if_type.
11125          */
11126         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
11127                                   &phba->sli4_hba.sli_intf.word0)) {
11128                 return -ENODEV;
11129         }
11130
11131         /* There is no SLI3 failback for SLI4 devices. */
11132         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
11133             LPFC_SLI_INTF_VALID) {
11134                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11135                                 "2894 SLI_INTF reg contents invalid "
11136                                 "sli_intf reg 0x%x\n",
11137                                 phba->sli4_hba.sli_intf.word0);
11138                 return -ENODEV;
11139         }
11140
11141         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11142         /*
11143          * Get the bus address of SLI4 device Bar regions and the
11144          * number of bytes required by each mapping. The mapping of the
11145          * particular PCI BARs regions is dependent on the type of
11146          * SLI4 device.
11147          */
11148         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
11149                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
11150                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
11151
11152                 /*
11153                  * Map SLI4 PCI Config Space Register base to a kernel virtual
11154                  * addr
11155                  */
11156                 phba->sli4_hba.conf_regs_memmap_p =
11157                         ioremap(phba->pci_bar0_map, bar0map_len);
11158                 if (!phba->sli4_hba.conf_regs_memmap_p) {
11159                         dev_printk(KERN_ERR, &pdev->dev,
11160                                    "ioremap failed for SLI4 PCI config "
11161                                    "registers.\n");
11162                         return -ENODEV;
11163                 }
11164                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
11165                 /* Set up BAR0 PCI config space register memory map */
11166                 lpfc_sli4_bar0_register_memmap(phba, if_type);
11167         } else {
11168                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
11169                 bar0map_len = pci_resource_len(pdev, 1);
11170                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
11171                         dev_printk(KERN_ERR, &pdev->dev,
11172                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
11173                         return -ENODEV;
11174                 }
11175                 phba->sli4_hba.conf_regs_memmap_p =
11176                                 ioremap(phba->pci_bar0_map, bar0map_len);
11177                 if (!phba->sli4_hba.conf_regs_memmap_p) {
11178                         dev_printk(KERN_ERR, &pdev->dev,
11179                                 "ioremap failed for SLI4 PCI config "
11180                                 "registers.\n");
11181                         return -ENODEV;
11182                 }
11183                 lpfc_sli4_bar0_register_memmap(phba, if_type);
11184         }
11185
11186         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
11187                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
11188                         /*
11189                          * Map SLI4 if type 0 HBA Control Register base to a
11190                          * kernel virtual address and setup the registers.
11191                          */
11192                         phba->pci_bar1_map = pci_resource_start(pdev,
11193                                                                 PCI_64BIT_BAR2);
11194                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
11195                         phba->sli4_hba.ctrl_regs_memmap_p =
11196                                         ioremap(phba->pci_bar1_map,
11197                                                 bar1map_len);
11198                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
11199                                 dev_err(&pdev->dev,
11200                                            "ioremap failed for SLI4 HBA "
11201                                             "control registers.\n");
11202                                 error = -ENOMEM;
11203                                 goto out_iounmap_conf;
11204                         }
11205                         phba->pci_bar2_memmap_p =
11206                                          phba->sli4_hba.ctrl_regs_memmap_p;
11207                         lpfc_sli4_bar1_register_memmap(phba, if_type);
11208                 } else {
11209                         error = -ENOMEM;
11210                         goto out_iounmap_conf;
11211                 }
11212         }
11213
11214         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
11215             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
11216                 /*
11217                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
11218                  * virtual address and setup the registers.
11219                  */
11220                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
11221                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
11222                 phba->sli4_hba.drbl_regs_memmap_p =
11223                                 ioremap(phba->pci_bar1_map, bar1map_len);
11224                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
11225                         dev_err(&pdev->dev,
11226                            "ioremap failed for SLI4 HBA doorbell registers.\n");
11227                         error = -ENOMEM;
11228                         goto out_iounmap_conf;
11229                 }
11230                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
11231                 lpfc_sli4_bar1_register_memmap(phba, if_type);
11232         }
11233
11234         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
11235                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
11236                         /*
11237                          * Map SLI4 if type 0 HBA Doorbell Register base to
11238                          * a kernel virtual address and setup the registers.
11239                          */
11240                         phba->pci_bar2_map = pci_resource_start(pdev,
11241                                                                 PCI_64BIT_BAR4);
11242                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
11243                         phba->sli4_hba.drbl_regs_memmap_p =
11244                                         ioremap(phba->pci_bar2_map,
11245                                                 bar2map_len);
11246                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
11247                                 dev_err(&pdev->dev,
11248                                            "ioremap failed for SLI4 HBA"
11249                                            " doorbell registers.\n");
11250                                 error = -ENOMEM;
11251                                 goto out_iounmap_ctrl;
11252                         }
11253                         phba->pci_bar4_memmap_p =
11254                                         phba->sli4_hba.drbl_regs_memmap_p;
11255                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
11256                         if (error)
11257                                 goto out_iounmap_all;
11258                 } else {
11259                         error = -ENOMEM;
11260                         goto out_iounmap_all;
11261                 }
11262         }
11263
11264         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
11265             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
11266                 /*
11267                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
11268                  * virtual address and setup the registers.
11269                  */
11270                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
11271                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
11272                 phba->sli4_hba.dpp_regs_memmap_p =
11273                                 ioremap(phba->pci_bar2_map, bar2map_len);
11274                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
11275                         dev_err(&pdev->dev,
11276                            "ioremap failed for SLI4 HBA dpp registers.\n");
11277                         error = -ENOMEM;
11278                         goto out_iounmap_ctrl;
11279                 }
11280                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
11281         }
11282
11283         /* Set up the EQ/CQ register handeling functions now */
11284         switch (if_type) {
11285         case LPFC_SLI_INTF_IF_TYPE_0:
11286         case LPFC_SLI_INTF_IF_TYPE_2:
11287                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
11288                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
11289                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
11290                 break;
11291         case LPFC_SLI_INTF_IF_TYPE_6:
11292                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
11293                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
11294                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
11295                 break;
11296         default:
11297                 break;
11298         }
11299
11300         return 0;
11301
11302 out_iounmap_all:
11303         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11304 out_iounmap_ctrl:
11305         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
11306 out_iounmap_conf:
11307         iounmap(phba->sli4_hba.conf_regs_memmap_p);
11308
11309         return error;
11310 }
11311
11312 /**
11313  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
11314  * @phba: pointer to lpfc hba data structure.
11315  *
11316  * This routine is invoked to unset the PCI device memory space for device
11317  * with SLI-4 interface spec.
11318  **/
11319 static void
11320 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
11321 {
11322         uint32_t if_type;
11323         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11324
11325         switch (if_type) {
11326         case LPFC_SLI_INTF_IF_TYPE_0:
11327                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11328                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
11329                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11330                 break;
11331         case LPFC_SLI_INTF_IF_TYPE_2:
11332                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11333                 break;
11334         case LPFC_SLI_INTF_IF_TYPE_6:
11335                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11336                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11337                 if (phba->sli4_hba.dpp_regs_memmap_p)
11338                         iounmap(phba->sli4_hba.dpp_regs_memmap_p);
11339                 break;
11340         case LPFC_SLI_INTF_IF_TYPE_1:
11341         default:
11342                 dev_printk(KERN_ERR, &phba->pcidev->dev,
11343                            "FATAL - unsupported SLI4 interface type - %d\n",
11344                            if_type);
11345                 break;
11346         }
11347 }
11348
11349 /**
11350  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
11351  * @phba: pointer to lpfc hba data structure.
11352  *
11353  * This routine is invoked to enable the MSI-X interrupt vectors to device
11354  * with SLI-3 interface specs.
11355  *
11356  * Return codes
11357  *   0 - successful
11358  *   other values - error
11359  **/
11360 static int
11361 lpfc_sli_enable_msix(struct lpfc_hba *phba)
11362 {
11363         int rc;
11364         LPFC_MBOXQ_t *pmb;
11365
11366         /* Set up MSI-X multi-message vectors */
11367         rc = pci_alloc_irq_vectors(phba->pcidev,
11368                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
11369         if (rc < 0) {
11370                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11371                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
11372                 goto vec_fail_out;
11373         }
11374
11375         /*
11376          * Assign MSI-X vectors to interrupt handlers
11377          */
11378
11379         /* vector-0 is associated to slow-path handler */
11380         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
11381                          &lpfc_sli_sp_intr_handler, 0,
11382                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
11383         if (rc) {
11384                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11385                                 "0421 MSI-X slow-path request_irq failed "
11386                                 "(%d)\n", rc);
11387                 goto msi_fail_out;
11388         }
11389
11390         /* vector-1 is associated to fast-path handler */
11391         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
11392                          &lpfc_sli_fp_intr_handler, 0,
11393                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
11394
11395         if (rc) {
11396                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11397                                 "0429 MSI-X fast-path request_irq failed "
11398                                 "(%d)\n", rc);
11399                 goto irq_fail_out;
11400         }
11401
11402         /*
11403          * Configure HBA MSI-X attention conditions to messages
11404          */
11405         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11406
11407         if (!pmb) {
11408                 rc = -ENOMEM;
11409                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11410                                 "0474 Unable to allocate memory for issuing "
11411                                 "MBOX_CONFIG_MSI command\n");
11412                 goto mem_fail_out;
11413         }
11414         rc = lpfc_config_msi(phba, pmb);
11415         if (rc)
11416                 goto mbx_fail_out;
11417         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
11418         if (rc != MBX_SUCCESS) {
11419                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
11420                                 "0351 Config MSI mailbox command failed, "
11421                                 "mbxCmd x%x, mbxStatus x%x\n",
11422                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
11423                 goto mbx_fail_out;
11424         }
11425
11426         /* Free memory allocated for mailbox command */
11427         mempool_free(pmb, phba->mbox_mem_pool);
11428         return rc;
11429
11430 mbx_fail_out:
11431         /* Free memory allocated for mailbox command */
11432         mempool_free(pmb, phba->mbox_mem_pool);
11433
11434 mem_fail_out:
11435         /* free the irq already requested */
11436         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
11437
11438 irq_fail_out:
11439         /* free the irq already requested */
11440         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
11441
11442 msi_fail_out:
11443         /* Unconfigure MSI-X capability structure */
11444         pci_free_irq_vectors(phba->pcidev);
11445
11446 vec_fail_out:
11447         return rc;
11448 }
11449
11450 /**
11451  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
11452  * @phba: pointer to lpfc hba data structure.
11453  *
11454  * This routine is invoked to enable the MSI interrupt mode to device with
11455  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
11456  * enable the MSI vector. The device driver is responsible for calling the
11457  * request_irq() to register MSI vector with a interrupt the handler, which
11458  * is done in this function.
11459  *
11460  * Return codes
11461  *      0 - successful
11462  *      other values - error
11463  */
11464 static int
11465 lpfc_sli_enable_msi(struct lpfc_hba *phba)
11466 {
11467         int rc;
11468
11469         rc = pci_enable_msi(phba->pcidev);
11470         if (!rc)
11471                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11472                                 "0462 PCI enable MSI mode success.\n");
11473         else {
11474                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11475                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
11476                 return rc;
11477         }
11478
11479         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
11480                          0, LPFC_DRIVER_NAME, phba);
11481         if (rc) {
11482                 pci_disable_msi(phba->pcidev);
11483                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11484                                 "0478 MSI request_irq failed (%d)\n", rc);
11485         }
11486         return rc;
11487 }
11488
11489 /**
11490  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
11491  * @phba: pointer to lpfc hba data structure.
11492  * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
11493  *
11494  * This routine is invoked to enable device interrupt and associate driver's
11495  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
11496  * spec. Depends on the interrupt mode configured to the driver, the driver
11497  * will try to fallback from the configured interrupt mode to an interrupt
11498  * mode which is supported by the platform, kernel, and device in the order
11499  * of:
11500  * MSI-X -> MSI -> IRQ.
11501  *
11502  * Return codes
11503  *   0 - successful
11504  *   other values - error
11505  **/
11506 static uint32_t
11507 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
11508 {
11509         uint32_t intr_mode = LPFC_INTR_ERROR;
11510         int retval;
11511
11512         /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
11513         retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
11514         if (retval)
11515                 return intr_mode;
11516         phba->hba_flag &= ~HBA_NEEDS_CFG_PORT;
11517
11518         if (cfg_mode == 2) {
11519                 /* Now, try to enable MSI-X interrupt mode */
11520                 retval = lpfc_sli_enable_msix(phba);
11521                 if (!retval) {
11522                         /* Indicate initialization to MSI-X mode */
11523                         phba->intr_type = MSIX;
11524                         intr_mode = 2;
11525                 }
11526         }
11527
11528         /* Fallback to MSI if MSI-X initialization failed */
11529         if (cfg_mode >= 1 && phba->intr_type == NONE) {
11530                 retval = lpfc_sli_enable_msi(phba);
11531                 if (!retval) {
11532                         /* Indicate initialization to MSI mode */
11533                         phba->intr_type = MSI;
11534                         intr_mode = 1;
11535                 }
11536         }
11537
11538         /* Fallback to INTx if both MSI-X/MSI initalization failed */
11539         if (phba->intr_type == NONE) {
11540                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
11541                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
11542                 if (!retval) {
11543                         /* Indicate initialization to INTx mode */
11544                         phba->intr_type = INTx;
11545                         intr_mode = 0;
11546                 }
11547         }
11548         return intr_mode;
11549 }
11550
11551 /**
11552  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
11553  * @phba: pointer to lpfc hba data structure.
11554  *
11555  * This routine is invoked to disable device interrupt and disassociate the
11556  * driver's interrupt handler(s) from interrupt vector(s) to device with
11557  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
11558  * release the interrupt vector(s) for the message signaled interrupt.
11559  **/
11560 static void
11561 lpfc_sli_disable_intr(struct lpfc_hba *phba)
11562 {
11563         int nr_irqs, i;
11564
11565         if (phba->intr_type == MSIX)
11566                 nr_irqs = LPFC_MSIX_VECTORS;
11567         else
11568                 nr_irqs = 1;
11569
11570         for (i = 0; i < nr_irqs; i++)
11571                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
11572         pci_free_irq_vectors(phba->pcidev);
11573
11574         /* Reset interrupt management states */
11575         phba->intr_type = NONE;
11576         phba->sli.slistat.sli_intr = 0;
11577 }
11578
11579 /**
11580  * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
11581  * @phba: pointer to lpfc hba data structure.
11582  * @id: EQ vector index or Hardware Queue index
11583  * @match: LPFC_FIND_BY_EQ = match by EQ
11584  *         LPFC_FIND_BY_HDWQ = match by Hardware Queue
11585  * Return the CPU that matches the selection criteria
11586  */
11587 static uint16_t
11588 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
11589 {
11590         struct lpfc_vector_map_info *cpup;
11591         int cpu;
11592
11593         /* Loop through all CPUs */
11594         for_each_present_cpu(cpu) {
11595                 cpup = &phba->sli4_hba.cpu_map[cpu];
11596
11597                 /* If we are matching by EQ, there may be multiple CPUs using
11598                  * using the same vector, so select the one with
11599                  * LPFC_CPU_FIRST_IRQ set.
11600                  */
11601                 if ((match == LPFC_FIND_BY_EQ) &&
11602                     (cpup->flag & LPFC_CPU_FIRST_IRQ) &&
11603                     (cpup->eq == id))
11604                         return cpu;
11605
11606                 /* If matching by HDWQ, select the first CPU that matches */
11607                 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
11608                         return cpu;
11609         }
11610         return 0;
11611 }
11612
11613 #ifdef CONFIG_X86
11614 /**
11615  * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
11616  * @phba: pointer to lpfc hba data structure.
11617  * @cpu: CPU map index
11618  * @phys_id: CPU package physical id
11619  * @core_id: CPU core id
11620  */
11621 static int
11622 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
11623                 uint16_t phys_id, uint16_t core_id)
11624 {
11625         struct lpfc_vector_map_info *cpup;
11626         int idx;
11627
11628         for_each_present_cpu(idx) {
11629                 cpup = &phba->sli4_hba.cpu_map[idx];
11630                 /* Does the cpup match the one we are looking for */
11631                 if ((cpup->phys_id == phys_id) &&
11632                     (cpup->core_id == core_id) &&
11633                     (cpu != idx))
11634                         return 1;
11635         }
11636         return 0;
11637 }
11638 #endif
11639
11640 /*
11641  * lpfc_assign_eq_map_info - Assigns eq for vector_map structure
11642  * @phba: pointer to lpfc hba data structure.
11643  * @eqidx: index for eq and irq vector
11644  * @flag: flags to set for vector_map structure
11645  * @cpu: cpu used to index vector_map structure
11646  *
11647  * The routine assigns eq info into vector_map structure
11648  */
11649 static inline void
11650 lpfc_assign_eq_map_info(struct lpfc_hba *phba, uint16_t eqidx, uint16_t flag,
11651                         unsigned int cpu)
11652 {
11653         struct lpfc_vector_map_info *cpup = &phba->sli4_hba.cpu_map[cpu];
11654         struct lpfc_hba_eq_hdl *eqhdl = lpfc_get_eq_hdl(eqidx);
11655
11656         cpup->eq = eqidx;
11657         cpup->flag |= flag;
11658
11659         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11660                         "3336 Set Affinity: CPU %d irq %d eq %d flag x%x\n",
11661                         cpu, eqhdl->irq, cpup->eq, cpup->flag);
11662 }
11663
11664 /**
11665  * lpfc_cpu_map_array_init - Initialize cpu_map structure
11666  * @phba: pointer to lpfc hba data structure.
11667  *
11668  * The routine initializes the cpu_map array structure
11669  */
11670 static void
11671 lpfc_cpu_map_array_init(struct lpfc_hba *phba)
11672 {
11673         struct lpfc_vector_map_info *cpup;
11674         struct lpfc_eq_intr_info *eqi;
11675         int cpu;
11676
11677         for_each_possible_cpu(cpu) {
11678                 cpup = &phba->sli4_hba.cpu_map[cpu];
11679                 cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
11680                 cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
11681                 cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
11682                 cpup->eq = LPFC_VECTOR_MAP_EMPTY;
11683                 cpup->flag = 0;
11684                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, cpu);
11685                 INIT_LIST_HEAD(&eqi->list);
11686                 eqi->icnt = 0;
11687         }
11688 }
11689
11690 /**
11691  * lpfc_hba_eq_hdl_array_init - Initialize hba_eq_hdl structure
11692  * @phba: pointer to lpfc hba data structure.
11693  *
11694  * The routine initializes the hba_eq_hdl array structure
11695  */
11696 static void
11697 lpfc_hba_eq_hdl_array_init(struct lpfc_hba *phba)
11698 {
11699         struct lpfc_hba_eq_hdl *eqhdl;
11700         int i;
11701
11702         for (i = 0; i < phba->cfg_irq_chann; i++) {
11703                 eqhdl = lpfc_get_eq_hdl(i);
11704                 eqhdl->irq = LPFC_VECTOR_MAP_EMPTY;
11705                 eqhdl->phba = phba;
11706         }
11707 }
11708
11709 /**
11710  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
11711  * @phba: pointer to lpfc hba data structure.
11712  * @vectors: number of msix vectors allocated.
11713  *
11714  * The routine will figure out the CPU affinity assignment for every
11715  * MSI-X vector allocated for the HBA.
11716  * In addition, the CPU to IO channel mapping will be calculated
11717  * and the phba->sli4_hba.cpu_map array will reflect this.
11718  */
11719 static void
11720 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
11721 {
11722         int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu;
11723         int max_phys_id, min_phys_id;
11724         int max_core_id, min_core_id;
11725         struct lpfc_vector_map_info *cpup;
11726         struct lpfc_vector_map_info *new_cpup;
11727 #ifdef CONFIG_X86
11728         struct cpuinfo_x86 *cpuinfo;
11729 #endif
11730 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
11731         struct lpfc_hdwq_stat *c_stat;
11732 #endif
11733
11734         max_phys_id = 0;
11735         min_phys_id = LPFC_VECTOR_MAP_EMPTY;
11736         max_core_id = 0;
11737         min_core_id = LPFC_VECTOR_MAP_EMPTY;
11738
11739         /* Update CPU map with physical id and core id of each CPU */
11740         for_each_present_cpu(cpu) {
11741                 cpup = &phba->sli4_hba.cpu_map[cpu];
11742 #ifdef CONFIG_X86
11743                 cpuinfo = &cpu_data(cpu);
11744                 cpup->phys_id = cpuinfo->phys_proc_id;
11745                 cpup->core_id = cpuinfo->cpu_core_id;
11746                 if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id))
11747                         cpup->flag |= LPFC_CPU_MAP_HYPER;
11748 #else
11749                 /* No distinction between CPUs for other platforms */
11750                 cpup->phys_id = 0;
11751                 cpup->core_id = cpu;
11752 #endif
11753
11754                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11755                                 "3328 CPU %d physid %d coreid %d flag x%x\n",
11756                                 cpu, cpup->phys_id, cpup->core_id, cpup->flag);
11757
11758                 if (cpup->phys_id > max_phys_id)
11759                         max_phys_id = cpup->phys_id;
11760                 if (cpup->phys_id < min_phys_id)
11761                         min_phys_id = cpup->phys_id;
11762
11763                 if (cpup->core_id > max_core_id)
11764                         max_core_id = cpup->core_id;
11765                 if (cpup->core_id < min_core_id)
11766                         min_core_id = cpup->core_id;
11767         }
11768
11769         /* After looking at each irq vector assigned to this pcidev, its
11770          * possible to see that not ALL CPUs have been accounted for.
11771          * Next we will set any unassigned (unaffinitized) cpu map
11772          * entries to a IRQ on the same phys_id.
11773          */
11774         first_cpu = cpumask_first(cpu_present_mask);
11775         start_cpu = first_cpu;
11776
11777         for_each_present_cpu(cpu) {
11778                 cpup = &phba->sli4_hba.cpu_map[cpu];
11779
11780                 /* Is this CPU entry unassigned */
11781                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
11782                         /* Mark CPU as IRQ not assigned by the kernel */
11783                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
11784
11785                         /* If so, find a new_cpup thats on the the SAME
11786                          * phys_id as cpup. start_cpu will start where we
11787                          * left off so all unassigned entries don't get assgined
11788                          * the IRQ of the first entry.
11789                          */
11790                         new_cpu = start_cpu;
11791                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11792                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11793                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
11794                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY) &&
11795                                     (new_cpup->phys_id == cpup->phys_id))
11796                                         goto found_same;
11797                                 new_cpu = cpumask_next(
11798                                         new_cpu, cpu_present_mask);
11799                                 if (new_cpu == nr_cpumask_bits)
11800                                         new_cpu = first_cpu;
11801                         }
11802                         /* At this point, we leave the CPU as unassigned */
11803                         continue;
11804 found_same:
11805                         /* We found a matching phys_id, so copy the IRQ info */
11806                         cpup->eq = new_cpup->eq;
11807
11808                         /* Bump start_cpu to the next slot to minmize the
11809                          * chance of having multiple unassigned CPU entries
11810                          * selecting the same IRQ.
11811                          */
11812                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
11813                         if (start_cpu == nr_cpumask_bits)
11814                                 start_cpu = first_cpu;
11815
11816                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11817                                         "3337 Set Affinity: CPU %d "
11818                                         "eq %d from peer cpu %d same "
11819                                         "phys_id (%d)\n",
11820                                         cpu, cpup->eq, new_cpu,
11821                                         cpup->phys_id);
11822                 }
11823         }
11824
11825         /* Set any unassigned cpu map entries to a IRQ on any phys_id */
11826         start_cpu = first_cpu;
11827
11828         for_each_present_cpu(cpu) {
11829                 cpup = &phba->sli4_hba.cpu_map[cpu];
11830
11831                 /* Is this entry unassigned */
11832                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
11833                         /* Mark it as IRQ not assigned by the kernel */
11834                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
11835
11836                         /* If so, find a new_cpup thats on ANY phys_id
11837                          * as the cpup. start_cpu will start where we
11838                          * left off so all unassigned entries don't get
11839                          * assigned the IRQ of the first entry.
11840                          */
11841                         new_cpu = start_cpu;
11842                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11843                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11844                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
11845                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY))
11846                                         goto found_any;
11847                                 new_cpu = cpumask_next(
11848                                         new_cpu, cpu_present_mask);
11849                                 if (new_cpu == nr_cpumask_bits)
11850                                         new_cpu = first_cpu;
11851                         }
11852                         /* We should never leave an entry unassigned */
11853                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11854                                         "3339 Set Affinity: CPU %d "
11855                                         "eq %d UNASSIGNED\n",
11856                                         cpup->hdwq, cpup->eq);
11857                         continue;
11858 found_any:
11859                         /* We found an available entry, copy the IRQ info */
11860                         cpup->eq = new_cpup->eq;
11861
11862                         /* Bump start_cpu to the next slot to minmize the
11863                          * chance of having multiple unassigned CPU entries
11864                          * selecting the same IRQ.
11865                          */
11866                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
11867                         if (start_cpu == nr_cpumask_bits)
11868                                 start_cpu = first_cpu;
11869
11870                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11871                                         "3338 Set Affinity: CPU %d "
11872                                         "eq %d from peer cpu %d (%d/%d)\n",
11873                                         cpu, cpup->eq, new_cpu,
11874                                         new_cpup->phys_id, new_cpup->core_id);
11875                 }
11876         }
11877
11878         /* Assign hdwq indices that are unique across all cpus in the map
11879          * that are also FIRST_CPUs.
11880          */
11881         idx = 0;
11882         for_each_present_cpu(cpu) {
11883                 cpup = &phba->sli4_hba.cpu_map[cpu];
11884
11885                 /* Only FIRST IRQs get a hdwq index assignment. */
11886                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
11887                         continue;
11888
11889                 /* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */
11890                 cpup->hdwq = idx;
11891                 idx++;
11892                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11893                                 "3333 Set Affinity: CPU %d (phys %d core %d): "
11894                                 "hdwq %d eq %d flg x%x\n",
11895                                 cpu, cpup->phys_id, cpup->core_id,
11896                                 cpup->hdwq, cpup->eq, cpup->flag);
11897         }
11898         /* Associate a hdwq with each cpu_map entry
11899          * This will be 1 to 1 - hdwq to cpu, unless there are less
11900          * hardware queues then CPUs. For that case we will just round-robin
11901          * the available hardware queues as they get assigned to CPUs.
11902          * The next_idx is the idx from the FIRST_CPU loop above to account
11903          * for irq_chann < hdwq.  The idx is used for round-robin assignments
11904          * and needs to start at 0.
11905          */
11906         next_idx = idx;
11907         start_cpu = 0;
11908         idx = 0;
11909         for_each_present_cpu(cpu) {
11910                 cpup = &phba->sli4_hba.cpu_map[cpu];
11911
11912                 /* FIRST cpus are already mapped. */
11913                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
11914                         continue;
11915
11916                 /* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq
11917                  * of the unassigned cpus to the next idx so that all
11918                  * hdw queues are fully utilized.
11919                  */
11920                 if (next_idx < phba->cfg_hdw_queue) {
11921                         cpup->hdwq = next_idx;
11922                         next_idx++;
11923                         continue;
11924                 }
11925
11926                 /* Not a First CPU and all hdw_queues are used.  Reuse a
11927                  * Hardware Queue for another CPU, so be smart about it
11928                  * and pick one that has its IRQ/EQ mapped to the same phys_id
11929                  * (CPU package) and core_id.
11930                  */
11931                 new_cpu = start_cpu;
11932                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11933                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11934                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
11935                             new_cpup->phys_id == cpup->phys_id &&
11936                             new_cpup->core_id == cpup->core_id) {
11937                                 goto found_hdwq;
11938                         }
11939                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
11940                         if (new_cpu == nr_cpumask_bits)
11941                                 new_cpu = first_cpu;
11942                 }
11943
11944                 /* If we can't match both phys_id and core_id,
11945                  * settle for just a phys_id match.
11946                  */
11947                 new_cpu = start_cpu;
11948                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11949                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11950                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
11951                             new_cpup->phys_id == cpup->phys_id)
11952                                 goto found_hdwq;
11953
11954                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
11955                         if (new_cpu == nr_cpumask_bits)
11956                                 new_cpu = first_cpu;
11957                 }
11958
11959                 /* Otherwise just round robin on cfg_hdw_queue */
11960                 cpup->hdwq = idx % phba->cfg_hdw_queue;
11961                 idx++;
11962                 goto logit;
11963  found_hdwq:
11964                 /* We found an available entry, copy the IRQ info */
11965                 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
11966                 if (start_cpu == nr_cpumask_bits)
11967                         start_cpu = first_cpu;
11968                 cpup->hdwq = new_cpup->hdwq;
11969  logit:
11970                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11971                                 "3335 Set Affinity: CPU %d (phys %d core %d): "
11972                                 "hdwq %d eq %d flg x%x\n",
11973                                 cpu, cpup->phys_id, cpup->core_id,
11974                                 cpup->hdwq, cpup->eq, cpup->flag);
11975         }
11976
11977         /*
11978          * Initialize the cpu_map slots for not-present cpus in case
11979          * a cpu is hot-added. Perform a simple hdwq round robin assignment.
11980          */
11981         idx = 0;
11982         for_each_possible_cpu(cpu) {
11983                 cpup = &phba->sli4_hba.cpu_map[cpu];
11984 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
11985                 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, cpu);
11986                 c_stat->hdwq_no = cpup->hdwq;
11987 #endif
11988                 if (cpup->hdwq != LPFC_VECTOR_MAP_EMPTY)
11989                         continue;
11990
11991                 cpup->hdwq = idx++ % phba->cfg_hdw_queue;
11992 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
11993                 c_stat->hdwq_no = cpup->hdwq;
11994 #endif
11995                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11996                                 "3340 Set Affinity: not present "
11997                                 "CPU %d hdwq %d\n",
11998                                 cpu, cpup->hdwq);
11999         }
12000
12001         /* The cpu_map array will be used later during initialization
12002          * when EQ / CQ / WQs are allocated and configured.
12003          */
12004         return;
12005 }
12006
12007 /**
12008  * lpfc_cpuhp_get_eq
12009  *
12010  * @phba:   pointer to lpfc hba data structure.
12011  * @cpu:    cpu going offline
12012  * @eqlist: eq list to append to
12013  */
12014 static int
12015 lpfc_cpuhp_get_eq(struct lpfc_hba *phba, unsigned int cpu,
12016                   struct list_head *eqlist)
12017 {
12018         const struct cpumask *maskp;
12019         struct lpfc_queue *eq;
12020         struct cpumask *tmp;
12021         u16 idx;
12022
12023         tmp = kzalloc(cpumask_size(), GFP_KERNEL);
12024         if (!tmp)
12025                 return -ENOMEM;
12026
12027         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12028                 maskp = pci_irq_get_affinity(phba->pcidev, idx);
12029                 if (!maskp)
12030                         continue;
12031                 /*
12032                  * if irq is not affinitized to the cpu going
12033                  * then we don't need to poll the eq attached
12034                  * to it.
12035                  */
12036                 if (!cpumask_and(tmp, maskp, cpumask_of(cpu)))
12037                         continue;
12038                 /* get the cpus that are online and are affini-
12039                  * tized to this irq vector.  If the count is
12040                  * more than 1 then cpuhp is not going to shut-
12041                  * down this vector.  Since this cpu has not
12042                  * gone offline yet, we need >1.
12043                  */
12044                 cpumask_and(tmp, maskp, cpu_online_mask);
12045                 if (cpumask_weight(tmp) > 1)
12046                         continue;
12047
12048                 /* Now that we have an irq to shutdown, get the eq
12049                  * mapped to this irq.  Note: multiple hdwq's in
12050                  * the software can share an eq, but eventually
12051                  * only eq will be mapped to this vector
12052                  */
12053                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
12054                 list_add(&eq->_poll_list, eqlist);
12055         }
12056         kfree(tmp);
12057         return 0;
12058 }
12059
12060 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba)
12061 {
12062         if (phba->sli_rev != LPFC_SLI_REV4)
12063                 return;
12064
12065         cpuhp_state_remove_instance_nocalls(lpfc_cpuhp_state,
12066                                             &phba->cpuhp);
12067         /*
12068          * unregistering the instance doesn't stop the polling
12069          * timer. Wait for the poll timer to retire.
12070          */
12071         synchronize_rcu();
12072         del_timer_sync(&phba->cpuhp_poll_timer);
12073 }
12074
12075 static void lpfc_cpuhp_remove(struct lpfc_hba *phba)
12076 {
12077         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
12078                 return;
12079
12080         __lpfc_cpuhp_remove(phba);
12081 }
12082
12083 static void lpfc_cpuhp_add(struct lpfc_hba *phba)
12084 {
12085         if (phba->sli_rev != LPFC_SLI_REV4)
12086                 return;
12087
12088         rcu_read_lock();
12089
12090         if (!list_empty(&phba->poll_list))
12091                 mod_timer(&phba->cpuhp_poll_timer,
12092                           jiffies + msecs_to_jiffies(LPFC_POLL_HB));
12093
12094         rcu_read_unlock();
12095
12096         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state,
12097                                          &phba->cpuhp);
12098 }
12099
12100 static int __lpfc_cpuhp_checks(struct lpfc_hba *phba, int *retval)
12101 {
12102         if (phba->pport->load_flag & FC_UNLOADING) {
12103                 *retval = -EAGAIN;
12104                 return true;
12105         }
12106
12107         if (phba->sli_rev != LPFC_SLI_REV4) {
12108                 *retval = 0;
12109                 return true;
12110         }
12111
12112         /* proceed with the hotplug */
12113         return false;
12114 }
12115
12116 /**
12117  * lpfc_irq_set_aff - set IRQ affinity
12118  * @eqhdl: EQ handle
12119  * @cpu: cpu to set affinity
12120  *
12121  **/
12122 static inline void
12123 lpfc_irq_set_aff(struct lpfc_hba_eq_hdl *eqhdl, unsigned int cpu)
12124 {
12125         cpumask_clear(&eqhdl->aff_mask);
12126         cpumask_set_cpu(cpu, &eqhdl->aff_mask);
12127         irq_set_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
12128         irq_set_affinity_hint(eqhdl->irq, &eqhdl->aff_mask);
12129 }
12130
12131 /**
12132  * lpfc_irq_clear_aff - clear IRQ affinity
12133  * @eqhdl: EQ handle
12134  *
12135  **/
12136 static inline void
12137 lpfc_irq_clear_aff(struct lpfc_hba_eq_hdl *eqhdl)
12138 {
12139         cpumask_clear(&eqhdl->aff_mask);
12140         irq_clear_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
12141 }
12142
12143 /**
12144  * lpfc_irq_rebalance - rebalances IRQ affinity according to cpuhp event
12145  * @phba: pointer to HBA context object.
12146  * @cpu: cpu going offline/online
12147  * @offline: true, cpu is going offline. false, cpu is coming online.
12148  *
12149  * If cpu is going offline, we'll try our best effort to find the next
12150  * online cpu on the phba's original_mask and migrate all offlining IRQ
12151  * affinities.
12152  *
12153  * If cpu is coming online, reaffinitize the IRQ back to the onlining cpu.
12154  *
12155  * Note: Call only if NUMA or NHT mode is enabled, otherwise rely on
12156  *       PCI_IRQ_AFFINITY to auto-manage IRQ affinity.
12157  *
12158  **/
12159 static void
12160 lpfc_irq_rebalance(struct lpfc_hba *phba, unsigned int cpu, bool offline)
12161 {
12162         struct lpfc_vector_map_info *cpup;
12163         struct cpumask *aff_mask;
12164         unsigned int cpu_select, cpu_next, idx;
12165         const struct cpumask *orig_mask;
12166
12167         if (phba->irq_chann_mode == NORMAL_MODE)
12168                 return;
12169
12170         orig_mask = &phba->sli4_hba.irq_aff_mask;
12171
12172         if (!cpumask_test_cpu(cpu, orig_mask))
12173                 return;
12174
12175         cpup = &phba->sli4_hba.cpu_map[cpu];
12176
12177         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
12178                 return;
12179
12180         if (offline) {
12181                 /* Find next online CPU on original mask */
12182                 cpu_next = cpumask_next_wrap(cpu, orig_mask, cpu, true);
12183                 cpu_select = lpfc_next_online_cpu(orig_mask, cpu_next);
12184
12185                 /* Found a valid CPU */
12186                 if ((cpu_select < nr_cpu_ids) && (cpu_select != cpu)) {
12187                         /* Go through each eqhdl and ensure offlining
12188                          * cpu aff_mask is migrated
12189                          */
12190                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12191                                 aff_mask = lpfc_get_aff_mask(idx);
12192
12193                                 /* Migrate affinity */
12194                                 if (cpumask_test_cpu(cpu, aff_mask))
12195                                         lpfc_irq_set_aff(lpfc_get_eq_hdl(idx),
12196                                                          cpu_select);
12197                         }
12198                 } else {
12199                         /* Rely on irqbalance if no online CPUs left on NUMA */
12200                         for (idx = 0; idx < phba->cfg_irq_chann; idx++)
12201                                 lpfc_irq_clear_aff(lpfc_get_eq_hdl(idx));
12202                 }
12203         } else {
12204                 /* Migrate affinity back to this CPU */
12205                 lpfc_irq_set_aff(lpfc_get_eq_hdl(cpup->eq), cpu);
12206         }
12207 }
12208
12209 static int lpfc_cpu_offline(unsigned int cpu, struct hlist_node *node)
12210 {
12211         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
12212         struct lpfc_queue *eq, *next;
12213         LIST_HEAD(eqlist);
12214         int retval;
12215
12216         if (!phba) {
12217                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
12218                 return 0;
12219         }
12220
12221         if (__lpfc_cpuhp_checks(phba, &retval))
12222                 return retval;
12223
12224         lpfc_irq_rebalance(phba, cpu, true);
12225
12226         retval = lpfc_cpuhp_get_eq(phba, cpu, &eqlist);
12227         if (retval)
12228                 return retval;
12229
12230         /* start polling on these eq's */
12231         list_for_each_entry_safe(eq, next, &eqlist, _poll_list) {
12232                 list_del_init(&eq->_poll_list);
12233                 lpfc_sli4_start_polling(eq);
12234         }
12235
12236         return 0;
12237 }
12238
12239 static int lpfc_cpu_online(unsigned int cpu, struct hlist_node *node)
12240 {
12241         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
12242         struct lpfc_queue *eq, *next;
12243         unsigned int n;
12244         int retval;
12245
12246         if (!phba) {
12247                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
12248                 return 0;
12249         }
12250
12251         if (__lpfc_cpuhp_checks(phba, &retval))
12252                 return retval;
12253
12254         lpfc_irq_rebalance(phba, cpu, false);
12255
12256         list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list) {
12257                 n = lpfc_find_cpu_handle(phba, eq->hdwq, LPFC_FIND_BY_HDWQ);
12258                 if (n == cpu)
12259                         lpfc_sli4_stop_polling(eq);
12260         }
12261
12262         return 0;
12263 }
12264
12265 /**
12266  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
12267  * @phba: pointer to lpfc hba data structure.
12268  *
12269  * This routine is invoked to enable the MSI-X interrupt vectors to device
12270  * with SLI-4 interface spec.  It also allocates MSI-X vectors and maps them
12271  * to cpus on the system.
12272  *
12273  * When cfg_irq_numa is enabled, the adapter will only allocate vectors for
12274  * the number of cpus on the same numa node as this adapter.  The vectors are
12275  * allocated without requesting OS affinity mapping.  A vector will be
12276  * allocated and assigned to each online and offline cpu.  If the cpu is
12277  * online, then affinity will be set to that cpu.  If the cpu is offline, then
12278  * affinity will be set to the nearest peer cpu within the numa node that is
12279  * online.  If there are no online cpus within the numa node, affinity is not
12280  * assigned and the OS may do as it pleases. Note: cpu vector affinity mapping
12281  * is consistent with the way cpu online/offline is handled when cfg_irq_numa is
12282  * configured.
12283  *
12284  * If numa mode is not enabled and there is more than 1 vector allocated, then
12285  * the driver relies on the managed irq interface where the OS assigns vector to
12286  * cpu affinity.  The driver will then use that affinity mapping to setup its
12287  * cpu mapping table.
12288  *
12289  * Return codes
12290  * 0 - successful
12291  * other values - error
12292  **/
12293 static int
12294 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
12295 {
12296         int vectors, rc, index;
12297         char *name;
12298         const struct cpumask *aff_mask = NULL;
12299         unsigned int cpu = 0, cpu_cnt = 0, cpu_select = nr_cpu_ids;
12300         struct lpfc_vector_map_info *cpup;
12301         struct lpfc_hba_eq_hdl *eqhdl;
12302         const struct cpumask *maskp;
12303         unsigned int flags = PCI_IRQ_MSIX;
12304
12305         /* Set up MSI-X multi-message vectors */
12306         vectors = phba->cfg_irq_chann;
12307
12308         if (phba->irq_chann_mode != NORMAL_MODE)
12309                 aff_mask = &phba->sli4_hba.irq_aff_mask;
12310
12311         if (aff_mask) {
12312                 cpu_cnt = cpumask_weight(aff_mask);
12313                 vectors = min(phba->cfg_irq_chann, cpu_cnt);
12314
12315                 /* cpu: iterates over aff_mask including offline or online
12316                  * cpu_select: iterates over online aff_mask to set affinity
12317                  */
12318                 cpu = cpumask_first(aff_mask);
12319                 cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
12320         } else {
12321                 flags |= PCI_IRQ_AFFINITY;
12322         }
12323
12324         rc = pci_alloc_irq_vectors(phba->pcidev, 1, vectors, flags);
12325         if (rc < 0) {
12326                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12327                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
12328                 goto vec_fail_out;
12329         }
12330         vectors = rc;
12331
12332         /* Assign MSI-X vectors to interrupt handlers */
12333         for (index = 0; index < vectors; index++) {
12334                 eqhdl = lpfc_get_eq_hdl(index);
12335                 name = eqhdl->handler_name;
12336                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
12337                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
12338                          LPFC_DRIVER_HANDLER_NAME"%d", index);
12339
12340                 eqhdl->idx = index;
12341                 rc = request_irq(pci_irq_vector(phba->pcidev, index),
12342                          &lpfc_sli4_hba_intr_handler, 0,
12343                          name, eqhdl);
12344                 if (rc) {
12345                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12346                                         "0486 MSI-X fast-path (%d) "
12347                                         "request_irq failed (%d)\n", index, rc);
12348                         goto cfg_fail_out;
12349                 }
12350
12351                 eqhdl->irq = pci_irq_vector(phba->pcidev, index);
12352
12353                 if (aff_mask) {
12354                         /* If found a neighboring online cpu, set affinity */
12355                         if (cpu_select < nr_cpu_ids)
12356                                 lpfc_irq_set_aff(eqhdl, cpu_select);
12357
12358                         /* Assign EQ to cpu_map */
12359                         lpfc_assign_eq_map_info(phba, index,
12360                                                 LPFC_CPU_FIRST_IRQ,
12361                                                 cpu);
12362
12363                         /* Iterate to next offline or online cpu in aff_mask */
12364                         cpu = cpumask_next(cpu, aff_mask);
12365
12366                         /* Find next online cpu in aff_mask to set affinity */
12367                         cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
12368                 } else if (vectors == 1) {
12369                         cpu = cpumask_first(cpu_present_mask);
12370                         lpfc_assign_eq_map_info(phba, index, LPFC_CPU_FIRST_IRQ,
12371                                                 cpu);
12372                 } else {
12373                         maskp = pci_irq_get_affinity(phba->pcidev, index);
12374
12375                         /* Loop through all CPUs associated with vector index */
12376                         for_each_cpu_and(cpu, maskp, cpu_present_mask) {
12377                                 cpup = &phba->sli4_hba.cpu_map[cpu];
12378
12379                                 /* If this is the first CPU thats assigned to
12380                                  * this vector, set LPFC_CPU_FIRST_IRQ.
12381                                  *
12382                                  * With certain platforms its possible that irq
12383                                  * vectors are affinitized to all the cpu's.
12384                                  * This can result in each cpu_map.eq to be set
12385                                  * to the last vector, resulting in overwrite
12386                                  * of all the previous cpu_map.eq.  Ensure that
12387                                  * each vector receives a place in cpu_map.
12388                                  * Later call to lpfc_cpu_affinity_check will
12389                                  * ensure we are nicely balanced out.
12390                                  */
12391                                 if (cpup->eq != LPFC_VECTOR_MAP_EMPTY)
12392                                         continue;
12393                                 lpfc_assign_eq_map_info(phba, index,
12394                                                         LPFC_CPU_FIRST_IRQ,
12395                                                         cpu);
12396                                 break;
12397                         }
12398                 }
12399         }
12400
12401         if (vectors != phba->cfg_irq_chann) {
12402                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12403                                 "3238 Reducing IO channels to match number of "
12404                                 "MSI-X vectors, requested %d got %d\n",
12405                                 phba->cfg_irq_chann, vectors);
12406                 if (phba->cfg_irq_chann > vectors)
12407                         phba->cfg_irq_chann = vectors;
12408         }
12409
12410         return rc;
12411
12412 cfg_fail_out:
12413         /* free the irq already requested */
12414         for (--index; index >= 0; index--) {
12415                 eqhdl = lpfc_get_eq_hdl(index);
12416                 lpfc_irq_clear_aff(eqhdl);
12417                 irq_set_affinity_hint(eqhdl->irq, NULL);
12418                 free_irq(eqhdl->irq, eqhdl);
12419         }
12420
12421         /* Unconfigure MSI-X capability structure */
12422         pci_free_irq_vectors(phba->pcidev);
12423
12424 vec_fail_out:
12425         return rc;
12426 }
12427
12428 /**
12429  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
12430  * @phba: pointer to lpfc hba data structure.
12431  *
12432  * This routine is invoked to enable the MSI interrupt mode to device with
12433  * SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is
12434  * called to enable the MSI vector. The device driver is responsible for
12435  * calling the request_irq() to register MSI vector with a interrupt the
12436  * handler, which is done in this function.
12437  *
12438  * Return codes
12439  *      0 - successful
12440  *      other values - error
12441  **/
12442 static int
12443 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
12444 {
12445         int rc, index;
12446         unsigned int cpu;
12447         struct lpfc_hba_eq_hdl *eqhdl;
12448
12449         rc = pci_alloc_irq_vectors(phba->pcidev, 1, 1,
12450                                    PCI_IRQ_MSI | PCI_IRQ_AFFINITY);
12451         if (rc > 0)
12452                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12453                                 "0487 PCI enable MSI mode success.\n");
12454         else {
12455                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12456                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
12457                 return rc ? rc : -1;
12458         }
12459
12460         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
12461                          0, LPFC_DRIVER_NAME, phba);
12462         if (rc) {
12463                 pci_free_irq_vectors(phba->pcidev);
12464                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12465                                 "0490 MSI request_irq failed (%d)\n", rc);
12466                 return rc;
12467         }
12468
12469         eqhdl = lpfc_get_eq_hdl(0);
12470         eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
12471
12472         cpu = cpumask_first(cpu_present_mask);
12473         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ, cpu);
12474
12475         for (index = 0; index < phba->cfg_irq_chann; index++) {
12476                 eqhdl = lpfc_get_eq_hdl(index);
12477                 eqhdl->idx = index;
12478         }
12479
12480         return 0;
12481 }
12482
12483 /**
12484  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
12485  * @phba: pointer to lpfc hba data structure.
12486  * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
12487  *
12488  * This routine is invoked to enable device interrupt and associate driver's
12489  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
12490  * interface spec. Depends on the interrupt mode configured to the driver,
12491  * the driver will try to fallback from the configured interrupt mode to an
12492  * interrupt mode which is supported by the platform, kernel, and device in
12493  * the order of:
12494  * MSI-X -> MSI -> IRQ.
12495  *
12496  * Return codes
12497  *      0 - successful
12498  *      other values - error
12499  **/
12500 static uint32_t
12501 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
12502 {
12503         uint32_t intr_mode = LPFC_INTR_ERROR;
12504         int retval, idx;
12505
12506         if (cfg_mode == 2) {
12507                 /* Preparation before conf_msi mbox cmd */
12508                 retval = 0;
12509                 if (!retval) {
12510                         /* Now, try to enable MSI-X interrupt mode */
12511                         retval = lpfc_sli4_enable_msix(phba);
12512                         if (!retval) {
12513                                 /* Indicate initialization to MSI-X mode */
12514                                 phba->intr_type = MSIX;
12515                                 intr_mode = 2;
12516                         }
12517                 }
12518         }
12519
12520         /* Fallback to MSI if MSI-X initialization failed */
12521         if (cfg_mode >= 1 && phba->intr_type == NONE) {
12522                 retval = lpfc_sli4_enable_msi(phba);
12523                 if (!retval) {
12524                         /* Indicate initialization to MSI mode */
12525                         phba->intr_type = MSI;
12526                         intr_mode = 1;
12527                 }
12528         }
12529
12530         /* Fallback to INTx if both MSI-X/MSI initalization failed */
12531         if (phba->intr_type == NONE) {
12532                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
12533                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
12534                 if (!retval) {
12535                         struct lpfc_hba_eq_hdl *eqhdl;
12536                         unsigned int cpu;
12537
12538                         /* Indicate initialization to INTx mode */
12539                         phba->intr_type = INTx;
12540                         intr_mode = 0;
12541
12542                         eqhdl = lpfc_get_eq_hdl(0);
12543                         eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
12544
12545                         cpu = cpumask_first(cpu_present_mask);
12546                         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ,
12547                                                 cpu);
12548                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12549                                 eqhdl = lpfc_get_eq_hdl(idx);
12550                                 eqhdl->idx = idx;
12551                         }
12552                 }
12553         }
12554         return intr_mode;
12555 }
12556
12557 /**
12558  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
12559  * @phba: pointer to lpfc hba data structure.
12560  *
12561  * This routine is invoked to disable device interrupt and disassociate
12562  * the driver's interrupt handler(s) from interrupt vector(s) to device
12563  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
12564  * will release the interrupt vector(s) for the message signaled interrupt.
12565  **/
12566 static void
12567 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
12568 {
12569         /* Disable the currently initialized interrupt mode */
12570         if (phba->intr_type == MSIX) {
12571                 int index;
12572                 struct lpfc_hba_eq_hdl *eqhdl;
12573
12574                 /* Free up MSI-X multi-message vectors */
12575                 for (index = 0; index < phba->cfg_irq_chann; index++) {
12576                         eqhdl = lpfc_get_eq_hdl(index);
12577                         lpfc_irq_clear_aff(eqhdl);
12578                         irq_set_affinity_hint(eqhdl->irq, NULL);
12579                         free_irq(eqhdl->irq, eqhdl);
12580                 }
12581         } else {
12582                 free_irq(phba->pcidev->irq, phba);
12583         }
12584
12585         pci_free_irq_vectors(phba->pcidev);
12586
12587         /* Reset interrupt management states */
12588         phba->intr_type = NONE;
12589         phba->sli.slistat.sli_intr = 0;
12590 }
12591
12592 /**
12593  * lpfc_unset_hba - Unset SLI3 hba device initialization
12594  * @phba: pointer to lpfc hba data structure.
12595  *
12596  * This routine is invoked to unset the HBA device initialization steps to
12597  * a device with SLI-3 interface spec.
12598  **/
12599 static void
12600 lpfc_unset_hba(struct lpfc_hba *phba)
12601 {
12602         struct lpfc_vport *vport = phba->pport;
12603         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
12604
12605         spin_lock_irq(shost->host_lock);
12606         vport->load_flag |= FC_UNLOADING;
12607         spin_unlock_irq(shost->host_lock);
12608
12609         kfree(phba->vpi_bmask);
12610         kfree(phba->vpi_ids);
12611
12612         lpfc_stop_hba_timers(phba);
12613
12614         phba->pport->work_port_events = 0;
12615
12616         lpfc_sli_hba_down(phba);
12617
12618         lpfc_sli_brdrestart(phba);
12619
12620         lpfc_sli_disable_intr(phba);
12621
12622         return;
12623 }
12624
12625 /**
12626  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
12627  * @phba: Pointer to HBA context object.
12628  *
12629  * This function is called in the SLI4 code path to wait for completion
12630  * of device's XRIs exchange busy. It will check the XRI exchange busy
12631  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
12632  * that, it will check the XRI exchange busy on outstanding FCP and ELS
12633  * I/Os every 30 seconds, log error message, and wait forever. Only when
12634  * all XRI exchange busy complete, the driver unload shall proceed with
12635  * invoking the function reset ioctl mailbox command to the CNA and the
12636  * the rest of the driver unload resource release.
12637  **/
12638 static void
12639 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
12640 {
12641         struct lpfc_sli4_hdw_queue *qp;
12642         int idx, ccnt;
12643         int wait_time = 0;
12644         int io_xri_cmpl = 1;
12645         int nvmet_xri_cmpl = 1;
12646         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
12647
12648         /* Driver just aborted IOs during the hba_unset process.  Pause
12649          * here to give the HBA time to complete the IO and get entries
12650          * into the abts lists.
12651          */
12652         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
12653
12654         /* Wait for NVME pending IO to flush back to transport. */
12655         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12656                 lpfc_nvme_wait_for_io_drain(phba);
12657
12658         ccnt = 0;
12659         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
12660                 qp = &phba->sli4_hba.hdwq[idx];
12661                 io_xri_cmpl = list_empty(&qp->lpfc_abts_io_buf_list);
12662                 if (!io_xri_cmpl) /* if list is NOT empty */
12663                         ccnt++;
12664         }
12665         if (ccnt)
12666                 io_xri_cmpl = 0;
12667
12668         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12669                 nvmet_xri_cmpl =
12670                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
12671         }
12672
12673         while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) {
12674                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
12675                         if (!nvmet_xri_cmpl)
12676                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12677                                                 "6424 NVMET XRI exchange busy "
12678                                                 "wait time: %d seconds.\n",
12679                                                 wait_time/1000);
12680                         if (!io_xri_cmpl)
12681                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12682                                                 "6100 IO XRI exchange busy "
12683                                                 "wait time: %d seconds.\n",
12684                                                 wait_time/1000);
12685                         if (!els_xri_cmpl)
12686                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12687                                                 "2878 ELS XRI exchange busy "
12688                                                 "wait time: %d seconds.\n",
12689                                                 wait_time/1000);
12690                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
12691                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
12692                 } else {
12693                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
12694                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
12695                 }
12696
12697                 ccnt = 0;
12698                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
12699                         qp = &phba->sli4_hba.hdwq[idx];
12700                         io_xri_cmpl = list_empty(
12701                             &qp->lpfc_abts_io_buf_list);
12702                         if (!io_xri_cmpl) /* if list is NOT empty */
12703                                 ccnt++;
12704                 }
12705                 if (ccnt)
12706                         io_xri_cmpl = 0;
12707
12708                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12709                         nvmet_xri_cmpl = list_empty(
12710                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
12711                 }
12712                 els_xri_cmpl =
12713                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
12714
12715         }
12716 }
12717
12718 /**
12719  * lpfc_sli4_hba_unset - Unset the fcoe hba
12720  * @phba: Pointer to HBA context object.
12721  *
12722  * This function is called in the SLI4 code path to reset the HBA's FCoE
12723  * function. The caller is not required to hold any lock. This routine
12724  * issues PCI function reset mailbox command to reset the FCoE function.
12725  * At the end of the function, it calls lpfc_hba_down_post function to
12726  * free any pending commands.
12727  **/
12728 static void
12729 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
12730 {
12731         int wait_cnt = 0;
12732         LPFC_MBOXQ_t *mboxq;
12733         struct pci_dev *pdev = phba->pcidev;
12734
12735         lpfc_stop_hba_timers(phba);
12736         hrtimer_cancel(&phba->cmf_timer);
12737
12738         if (phba->pport)
12739                 phba->sli4_hba.intr_enable = 0;
12740
12741         /*
12742          * Gracefully wait out the potential current outstanding asynchronous
12743          * mailbox command.
12744          */
12745
12746         /* First, block any pending async mailbox command from posted */
12747         spin_lock_irq(&phba->hbalock);
12748         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
12749         spin_unlock_irq(&phba->hbalock);
12750         /* Now, trying to wait it out if we can */
12751         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
12752                 msleep(10);
12753                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
12754                         break;
12755         }
12756         /* Forcefully release the outstanding mailbox command if timed out */
12757         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
12758                 spin_lock_irq(&phba->hbalock);
12759                 mboxq = phba->sli.mbox_active;
12760                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
12761                 __lpfc_mbox_cmpl_put(phba, mboxq);
12762                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
12763                 phba->sli.mbox_active = NULL;
12764                 spin_unlock_irq(&phba->hbalock);
12765         }
12766
12767         /* Abort all iocbs associated with the hba */
12768         lpfc_sli_hba_iocb_abort(phba);
12769
12770         /* Wait for completion of device XRI exchange busy */
12771         lpfc_sli4_xri_exchange_busy_wait(phba);
12772
12773         /* per-phba callback de-registration for hotplug event */
12774         if (phba->pport)
12775                 lpfc_cpuhp_remove(phba);
12776
12777         /* Disable PCI subsystem interrupt */
12778         lpfc_sli4_disable_intr(phba);
12779
12780         /* Disable SR-IOV if enabled */
12781         if (phba->cfg_sriov_nr_virtfn)
12782                 pci_disable_sriov(pdev);
12783
12784         /* Stop kthread signal shall trigger work_done one more time */
12785         kthread_stop(phba->worker_thread);
12786
12787         /* Disable FW logging to host memory */
12788         lpfc_ras_stop_fwlog(phba);
12789
12790         /* Unset the queues shared with the hardware then release all
12791          * allocated resources.
12792          */
12793         lpfc_sli4_queue_unset(phba);
12794         lpfc_sli4_queue_destroy(phba);
12795
12796         /* Reset SLI4 HBA FCoE function */
12797         lpfc_pci_function_reset(phba);
12798
12799         /* Free RAS DMA memory */
12800         if (phba->ras_fwlog.ras_enabled)
12801                 lpfc_sli4_ras_dma_free(phba);
12802
12803         /* Stop the SLI4 device port */
12804         if (phba->pport)
12805                 phba->pport->work_port_events = 0;
12806 }
12807
12808 void
12809 lpfc_init_congestion_buf(struct lpfc_hba *phba)
12810 {
12811         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
12812                         "6235 INIT Congestion Buffer %p\n", phba->cgn_i);
12813
12814         if (!phba->cgn_i)
12815                 return;
12816
12817         atomic_set(&phba->cgn_fabric_warn_cnt, 0);
12818         atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
12819         atomic_set(&phba->cgn_sync_alarm_cnt, 0);
12820         atomic_set(&phba->cgn_sync_warn_cnt, 0);
12821
12822         atomic64_set(&phba->cgn_acqe_stat.alarm, 0);
12823         atomic64_set(&phba->cgn_acqe_stat.warn, 0);
12824         atomic_set(&phba->cgn_driver_evt_cnt, 0);
12825         atomic_set(&phba->cgn_latency_evt_cnt, 0);
12826         atomic64_set(&phba->cgn_latency_evt, 0);
12827         phba->cgn_evt_minute = 0;
12828
12829         phba->cgn_evt_timestamp = jiffies +
12830                 msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
12831 }
12832
12833 void
12834 lpfc_init_congestion_stat(struct lpfc_hba *phba)
12835 {
12836         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
12837                         "6236 INIT Congestion Stat %p\n", phba->cgn_i);
12838
12839         if (!phba->cgn_i)
12840                 return;
12841 }
12842
12843 /**
12844  * __lpfc_reg_congestion_buf - register congestion info buffer with HBA
12845  * @phba: Pointer to hba context object.
12846  * @reg: flag to determine register or unregister.
12847  */
12848 static int
12849 __lpfc_reg_congestion_buf(struct lpfc_hba *phba, int reg)
12850 {
12851         struct lpfc_mbx_reg_congestion_buf *reg_congestion_buf;
12852         union  lpfc_sli4_cfg_shdr *shdr;
12853         uint32_t shdr_status, shdr_add_status;
12854         LPFC_MBOXQ_t *mboxq;
12855         int length, rc;
12856
12857         if (!phba->cgn_i)
12858                 return -ENXIO;
12859
12860         mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12861         if (!mboxq) {
12862                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
12863                                 "2641 REG_CONGESTION_BUF mbox allocation fail: "
12864                                 "HBA state x%x reg %d\n",
12865                                 phba->pport->port_state, reg);
12866                 return -ENOMEM;
12867         }
12868
12869         length = (sizeof(struct lpfc_mbx_reg_congestion_buf) -
12870                 sizeof(struct lpfc_sli4_cfg_mhdr));
12871         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
12872                          LPFC_MBOX_OPCODE_REG_CONGESTION_BUF, length,
12873                          LPFC_SLI4_MBX_EMBED);
12874         reg_congestion_buf = &mboxq->u.mqe.un.reg_congestion_buf;
12875         bf_set(lpfc_mbx_reg_cgn_buf_type, reg_congestion_buf, 1);
12876         if (reg > 0)
12877                 bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 1);
12878         else
12879                 bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 0);
12880         reg_congestion_buf->length = sizeof(struct lpfc_cgn_info);
12881         reg_congestion_buf->addr_lo =
12882                 putPaddrLow(phba->cgn_i->phys);
12883         reg_congestion_buf->addr_hi =
12884                 putPaddrHigh(phba->cgn_i->phys);
12885
12886         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
12887         shdr = (union lpfc_sli4_cfg_shdr *)
12888                 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
12889         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12890         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
12891                                  &shdr->response);
12892         mempool_free(mboxq, phba->mbox_mem_pool);
12893         if (shdr_status || shdr_add_status || rc) {
12894                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12895                                 "2642 REG_CONGESTION_BUF mailbox "
12896                                 "failed with status x%x add_status x%x,"
12897                                 " mbx status x%x reg %d\n",
12898                                 shdr_status, shdr_add_status, rc, reg);
12899                 return -ENXIO;
12900         }
12901         return 0;
12902 }
12903
12904 int
12905 lpfc_unreg_congestion_buf(struct lpfc_hba *phba)
12906 {
12907         lpfc_cmf_stop(phba);
12908         return __lpfc_reg_congestion_buf(phba, 0);
12909 }
12910
12911 int
12912 lpfc_reg_congestion_buf(struct lpfc_hba *phba)
12913 {
12914         return __lpfc_reg_congestion_buf(phba, 1);
12915 }
12916
12917 /**
12918  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
12919  * @phba: Pointer to HBA context object.
12920  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
12921  *
12922  * This function is called in the SLI4 code path to read the port's
12923  * sli4 capabilities.
12924  *
12925  * This function may be be called from any context that can block-wait
12926  * for the completion.  The expectation is that this routine is called
12927  * typically from probe_one or from the online routine.
12928  **/
12929 int
12930 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
12931 {
12932         int rc;
12933         struct lpfc_mqe *mqe = &mboxq->u.mqe;
12934         struct lpfc_pc_sli4_params *sli4_params;
12935         uint32_t mbox_tmo;
12936         int length;
12937         bool exp_wqcq_pages = true;
12938         struct lpfc_sli4_parameters *mbx_sli4_parameters;
12939
12940         /*
12941          * By default, the driver assumes the SLI4 port requires RPI
12942          * header postings.  The SLI4_PARAM response will correct this
12943          * assumption.
12944          */
12945         phba->sli4_hba.rpi_hdrs_in_use = 1;
12946
12947         /* Read the port's SLI4 Config Parameters */
12948         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
12949                   sizeof(struct lpfc_sli4_cfg_mhdr));
12950         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
12951                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
12952                          length, LPFC_SLI4_MBX_EMBED);
12953         if (!phba->sli4_hba.intr_enable)
12954                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
12955         else {
12956                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
12957                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
12958         }
12959         if (unlikely(rc))
12960                 return rc;
12961         sli4_params = &phba->sli4_hba.pc_sli4_params;
12962         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
12963         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
12964         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
12965         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
12966         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
12967                                              mbx_sli4_parameters);
12968         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
12969                                              mbx_sli4_parameters);
12970         if (bf_get(cfg_phwq, mbx_sli4_parameters))
12971                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
12972         else
12973                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
12974         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
12975         sli4_params->loopbk_scope = bf_get(cfg_loopbk_scope,
12976                                            mbx_sli4_parameters);
12977         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
12978         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
12979         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
12980         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
12981         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
12982         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
12983         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
12984         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
12985         sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
12986         sli4_params->pls = bf_get(cfg_pvl, mbx_sli4_parameters);
12987         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
12988                                             mbx_sli4_parameters);
12989         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
12990         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
12991                                            mbx_sli4_parameters);
12992         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
12993         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
12994
12995         /* Check for Extended Pre-Registered SGL support */
12996         phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters);
12997
12998         /* Check for firmware nvme support */
12999         rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
13000                      bf_get(cfg_xib, mbx_sli4_parameters));
13001
13002         if (rc) {
13003                 /* Save this to indicate the Firmware supports NVME */
13004                 sli4_params->nvme = 1;
13005
13006                 /* Firmware NVME support, check driver FC4 NVME support */
13007                 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
13008                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
13009                                         "6133 Disabling NVME support: "
13010                                         "FC4 type not supported: x%x\n",
13011                                         phba->cfg_enable_fc4_type);
13012                         goto fcponly;
13013                 }
13014         } else {
13015                 /* No firmware NVME support, check driver FC4 NVME support */
13016                 sli4_params->nvme = 0;
13017                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13018                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
13019                                         "6101 Disabling NVME support: Not "
13020                                         "supported by firmware (%d %d) x%x\n",
13021                                         bf_get(cfg_nvme, mbx_sli4_parameters),
13022                                         bf_get(cfg_xib, mbx_sli4_parameters),
13023                                         phba->cfg_enable_fc4_type);
13024 fcponly:
13025                         phba->nvmet_support = 0;
13026                         phba->cfg_nvmet_mrq = 0;
13027                         phba->cfg_nvme_seg_cnt = 0;
13028
13029                         /* If no FC4 type support, move to just SCSI support */
13030                         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
13031                                 return -ENODEV;
13032                         phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
13033                 }
13034         }
13035
13036         /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
13037          * accommodate 512K and 1M IOs in a single nvme buf.
13038          */
13039         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
13040                 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
13041
13042         /* Enable embedded Payload BDE if support is indicated */
13043         if (bf_get(cfg_pbde, mbx_sli4_parameters))
13044                 phba->cfg_enable_pbde = 1;
13045         else
13046                 phba->cfg_enable_pbde = 0;
13047
13048         /*
13049          * To support Suppress Response feature we must satisfy 3 conditions.
13050          * lpfc_suppress_rsp module parameter must be set (default).
13051          * In SLI4-Parameters Descriptor:
13052          * Extended Inline Buffers (XIB) must be supported.
13053          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
13054          * (double negative).
13055          */
13056         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
13057             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
13058                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
13059         else
13060                 phba->cfg_suppress_rsp = 0;
13061
13062         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
13063                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
13064
13065         /* Make sure that sge_supp_len can be handled by the driver */
13066         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
13067                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
13068
13069         /*
13070          * Check whether the adapter supports an embedded copy of the
13071          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
13072          * to use this option, 128-byte WQEs must be used.
13073          */
13074         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
13075                 phba->fcp_embed_io = 1;
13076         else
13077                 phba->fcp_embed_io = 0;
13078
13079         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
13080                         "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
13081                         bf_get(cfg_xib, mbx_sli4_parameters),
13082                         phba->cfg_enable_pbde,
13083                         phba->fcp_embed_io, sli4_params->nvme,
13084                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
13085
13086         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
13087             LPFC_SLI_INTF_IF_TYPE_2) &&
13088             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
13089                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
13090                 exp_wqcq_pages = false;
13091
13092         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
13093             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
13094             exp_wqcq_pages &&
13095             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
13096                 phba->enab_exp_wqcq_pages = 1;
13097         else
13098                 phba->enab_exp_wqcq_pages = 0;
13099         /*
13100          * Check if the SLI port supports MDS Diagnostics
13101          */
13102         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
13103                 phba->mds_diags_support = 1;
13104         else
13105                 phba->mds_diags_support = 0;
13106
13107         /*
13108          * Check if the SLI port supports NSLER
13109          */
13110         if (bf_get(cfg_nsler, mbx_sli4_parameters))
13111                 phba->nsler = 1;
13112         else
13113                 phba->nsler = 0;
13114
13115         return 0;
13116 }
13117
13118 /**
13119  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
13120  * @pdev: pointer to PCI device
13121  * @pid: pointer to PCI device identifier
13122  *
13123  * This routine is to be called to attach a device with SLI-3 interface spec
13124  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
13125  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
13126  * information of the device and driver to see if the driver state that it can
13127  * support this kind of device. If the match is successful, the driver core
13128  * invokes this routine. If this routine determines it can claim the HBA, it
13129  * does all the initialization that it needs to do to handle the HBA properly.
13130  *
13131  * Return code
13132  *      0 - driver can claim the device
13133  *      negative value - driver can not claim the device
13134  **/
13135 static int
13136 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
13137 {
13138         struct lpfc_hba   *phba;
13139         struct lpfc_vport *vport = NULL;
13140         struct Scsi_Host  *shost = NULL;
13141         int error;
13142         uint32_t cfg_mode, intr_mode;
13143
13144         /* Allocate memory for HBA structure */
13145         phba = lpfc_hba_alloc(pdev);
13146         if (!phba)
13147                 return -ENOMEM;
13148
13149         /* Perform generic PCI device enabling operation */
13150         error = lpfc_enable_pci_dev(phba);
13151         if (error)
13152                 goto out_free_phba;
13153
13154         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
13155         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
13156         if (error)
13157                 goto out_disable_pci_dev;
13158
13159         /* Set up SLI-3 specific device PCI memory space */
13160         error = lpfc_sli_pci_mem_setup(phba);
13161         if (error) {
13162                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13163                                 "1402 Failed to set up pci memory space.\n");
13164                 goto out_disable_pci_dev;
13165         }
13166
13167         /* Set up SLI-3 specific device driver resources */
13168         error = lpfc_sli_driver_resource_setup(phba);
13169         if (error) {
13170                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13171                                 "1404 Failed to set up driver resource.\n");
13172                 goto out_unset_pci_mem_s3;
13173         }
13174
13175         /* Initialize and populate the iocb list per host */
13176
13177         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
13178         if (error) {
13179                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13180                                 "1405 Failed to initialize iocb list.\n");
13181                 goto out_unset_driver_resource_s3;
13182         }
13183
13184         /* Set up common device driver resources */
13185         error = lpfc_setup_driver_resource_phase2(phba);
13186         if (error) {
13187                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13188                                 "1406 Failed to set up driver resource.\n");
13189                 goto out_free_iocb_list;
13190         }
13191
13192         /* Get the default values for Model Name and Description */
13193         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
13194
13195         /* Create SCSI host to the physical port */
13196         error = lpfc_create_shost(phba);
13197         if (error) {
13198                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13199                                 "1407 Failed to create scsi host.\n");
13200                 goto out_unset_driver_resource;
13201         }
13202
13203         /* Configure sysfs attributes */
13204         vport = phba->pport;
13205         error = lpfc_alloc_sysfs_attr(vport);
13206         if (error) {
13207                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13208                                 "1476 Failed to allocate sysfs attr\n");
13209                 goto out_destroy_shost;
13210         }
13211
13212         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
13213         /* Now, trying to enable interrupt and bring up the device */
13214         cfg_mode = phba->cfg_use_msi;
13215         while (true) {
13216                 /* Put device to a known state before enabling interrupt */
13217                 lpfc_stop_port(phba);
13218                 /* Configure and enable interrupt */
13219                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
13220                 if (intr_mode == LPFC_INTR_ERROR) {
13221                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13222                                         "0431 Failed to enable interrupt.\n");
13223                         error = -ENODEV;
13224                         goto out_free_sysfs_attr;
13225                 }
13226                 /* SLI-3 HBA setup */
13227                 if (lpfc_sli_hba_setup(phba)) {
13228                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13229                                         "1477 Failed to set up hba\n");
13230                         error = -ENODEV;
13231                         goto out_remove_device;
13232                 }
13233
13234                 /* Wait 50ms for the interrupts of previous mailbox commands */
13235                 msleep(50);
13236                 /* Check active interrupts on message signaled interrupts */
13237                 if (intr_mode == 0 ||
13238                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
13239                         /* Log the current active interrupt mode */
13240                         phba->intr_mode = intr_mode;
13241                         lpfc_log_intr_mode(phba, intr_mode);
13242                         break;
13243                 } else {
13244                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13245                                         "0447 Configure interrupt mode (%d) "
13246                                         "failed active interrupt test.\n",
13247                                         intr_mode);
13248                         /* Disable the current interrupt mode */
13249                         lpfc_sli_disable_intr(phba);
13250                         /* Try next level of interrupt mode */
13251                         cfg_mode = --intr_mode;
13252                 }
13253         }
13254
13255         /* Perform post initialization setup */
13256         lpfc_post_init_setup(phba);
13257
13258         /* Check if there are static vports to be created. */
13259         lpfc_create_static_vport(phba);
13260
13261         return 0;
13262
13263 out_remove_device:
13264         lpfc_unset_hba(phba);
13265 out_free_sysfs_attr:
13266         lpfc_free_sysfs_attr(vport);
13267 out_destroy_shost:
13268         lpfc_destroy_shost(phba);
13269 out_unset_driver_resource:
13270         lpfc_unset_driver_resource_phase2(phba);
13271 out_free_iocb_list:
13272         lpfc_free_iocb_list(phba);
13273 out_unset_driver_resource_s3:
13274         lpfc_sli_driver_resource_unset(phba);
13275 out_unset_pci_mem_s3:
13276         lpfc_sli_pci_mem_unset(phba);
13277 out_disable_pci_dev:
13278         lpfc_disable_pci_dev(phba);
13279         if (shost)
13280                 scsi_host_put(shost);
13281 out_free_phba:
13282         lpfc_hba_free(phba);
13283         return error;
13284 }
13285
13286 /**
13287  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
13288  * @pdev: pointer to PCI device
13289  *
13290  * This routine is to be called to disattach a device with SLI-3 interface
13291  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
13292  * removed from PCI bus, it performs all the necessary cleanup for the HBA
13293  * device to be removed from the PCI subsystem properly.
13294  **/
13295 static void
13296 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
13297 {
13298         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
13299         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
13300         struct lpfc_vport **vports;
13301         struct lpfc_hba   *phba = vport->phba;
13302         int i;
13303
13304         spin_lock_irq(&phba->hbalock);
13305         vport->load_flag |= FC_UNLOADING;
13306         spin_unlock_irq(&phba->hbalock);
13307
13308         lpfc_free_sysfs_attr(vport);
13309
13310         /* Release all the vports against this physical port */
13311         vports = lpfc_create_vport_work_array(phba);
13312         if (vports != NULL)
13313                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
13314                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
13315                                 continue;
13316                         fc_vport_terminate(vports[i]->fc_vport);
13317                 }
13318         lpfc_destroy_vport_work_array(phba, vports);
13319
13320         /* Remove FC host with the physical port */
13321         fc_remove_host(shost);
13322         scsi_remove_host(shost);
13323
13324         /* Clean up all nodes, mailboxes and IOs. */
13325         lpfc_cleanup(vport);
13326
13327         /*
13328          * Bring down the SLI Layer. This step disable all interrupts,
13329          * clears the rings, discards all mailbox commands, and resets
13330          * the HBA.
13331          */
13332
13333         /* HBA interrupt will be disabled after this call */
13334         lpfc_sli_hba_down(phba);
13335         /* Stop kthread signal shall trigger work_done one more time */
13336         kthread_stop(phba->worker_thread);
13337         /* Final cleanup of txcmplq and reset the HBA */
13338         lpfc_sli_brdrestart(phba);
13339
13340         kfree(phba->vpi_bmask);
13341         kfree(phba->vpi_ids);
13342
13343         lpfc_stop_hba_timers(phba);
13344         spin_lock_irq(&phba->port_list_lock);
13345         list_del_init(&vport->listentry);
13346         spin_unlock_irq(&phba->port_list_lock);
13347
13348         lpfc_debugfs_terminate(vport);
13349
13350         /* Disable SR-IOV if enabled */
13351         if (phba->cfg_sriov_nr_virtfn)
13352                 pci_disable_sriov(pdev);
13353
13354         /* Disable interrupt */
13355         lpfc_sli_disable_intr(phba);
13356
13357         scsi_host_put(shost);
13358
13359         /*
13360          * Call scsi_free before mem_free since scsi bufs are released to their
13361          * corresponding pools here.
13362          */
13363         lpfc_scsi_free(phba);
13364         lpfc_free_iocb_list(phba);
13365
13366         lpfc_mem_free_all(phba);
13367
13368         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
13369                           phba->hbqslimp.virt, phba->hbqslimp.phys);
13370
13371         /* Free resources associated with SLI2 interface */
13372         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
13373                           phba->slim2p.virt, phba->slim2p.phys);
13374
13375         /* unmap adapter SLIM and Control Registers */
13376         iounmap(phba->ctrl_regs_memmap_p);
13377         iounmap(phba->slim_memmap_p);
13378
13379         lpfc_hba_free(phba);
13380
13381         pci_release_mem_regions(pdev);
13382         pci_disable_device(pdev);
13383 }
13384
13385 /**
13386  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
13387  * @dev_d: pointer to device
13388  *
13389  * This routine is to be called from the kernel's PCI subsystem to support
13390  * system Power Management (PM) to device with SLI-3 interface spec. When
13391  * PM invokes this method, it quiesces the device by stopping the driver's
13392  * worker thread for the device, turning off device's interrupt and DMA,
13393  * and bring the device offline. Note that as the driver implements the
13394  * minimum PM requirements to a power-aware driver's PM support for the
13395  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
13396  * to the suspend() method call will be treated as SUSPEND and the driver will
13397  * fully reinitialize its device during resume() method call, the driver will
13398  * set device to PCI_D3hot state in PCI config space instead of setting it
13399  * according to the @msg provided by the PM.
13400  *
13401  * Return code
13402  *      0 - driver suspended the device
13403  *      Error otherwise
13404  **/
13405 static int __maybe_unused
13406 lpfc_pci_suspend_one_s3(struct device *dev_d)
13407 {
13408         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
13409         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13410
13411         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13412                         "0473 PCI device Power Management suspend.\n");
13413
13414         /* Bring down the device */
13415         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
13416         lpfc_offline(phba);
13417         kthread_stop(phba->worker_thread);
13418
13419         /* Disable interrupt from device */
13420         lpfc_sli_disable_intr(phba);
13421
13422         return 0;
13423 }
13424
13425 /**
13426  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
13427  * @dev_d: pointer to device
13428  *
13429  * This routine is to be called from the kernel's PCI subsystem to support
13430  * system Power Management (PM) to device with SLI-3 interface spec. When PM
13431  * invokes this method, it restores the device's PCI config space state and
13432  * fully reinitializes the device and brings it online. Note that as the
13433  * driver implements the minimum PM requirements to a power-aware driver's
13434  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
13435  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
13436  * driver will fully reinitialize its device during resume() method call,
13437  * the device will be set to PCI_D0 directly in PCI config space before
13438  * restoring the state.
13439  *
13440  * Return code
13441  *      0 - driver suspended the device
13442  *      Error otherwise
13443  **/
13444 static int __maybe_unused
13445 lpfc_pci_resume_one_s3(struct device *dev_d)
13446 {
13447         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
13448         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13449         uint32_t intr_mode;
13450         int error;
13451
13452         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13453                         "0452 PCI device Power Management resume.\n");
13454
13455         /* Startup the kernel thread for this host adapter. */
13456         phba->worker_thread = kthread_run(lpfc_do_work, phba,
13457                                         "lpfc_worker_%d", phba->brd_no);
13458         if (IS_ERR(phba->worker_thread)) {
13459                 error = PTR_ERR(phba->worker_thread);
13460                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13461                                 "0434 PM resume failed to start worker "
13462                                 "thread: error=x%x.\n", error);
13463                 return error;
13464         }
13465
13466         /* Configure and enable interrupt */
13467         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
13468         if (intr_mode == LPFC_INTR_ERROR) {
13469                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13470                                 "0430 PM resume Failed to enable interrupt\n");
13471                 return -EIO;
13472         } else
13473                 phba->intr_mode = intr_mode;
13474
13475         /* Restart HBA and bring it online */
13476         lpfc_sli_brdrestart(phba);
13477         lpfc_online(phba);
13478
13479         /* Log the current active interrupt mode */
13480         lpfc_log_intr_mode(phba, phba->intr_mode);
13481
13482         return 0;
13483 }
13484
13485 /**
13486  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
13487  * @phba: pointer to lpfc hba data structure.
13488  *
13489  * This routine is called to prepare the SLI3 device for PCI slot recover. It
13490  * aborts all the outstanding SCSI I/Os to the pci device.
13491  **/
13492 static void
13493 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
13494 {
13495         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13496                         "2723 PCI channel I/O abort preparing for recovery\n");
13497
13498         /*
13499          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
13500          * and let the SCSI mid-layer to retry them to recover.
13501          */
13502         lpfc_sli_abort_fcp_rings(phba);
13503 }
13504
13505 /**
13506  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
13507  * @phba: pointer to lpfc hba data structure.
13508  *
13509  * This routine is called to prepare the SLI3 device for PCI slot reset. It
13510  * disables the device interrupt and pci device, and aborts the internal FCP
13511  * pending I/Os.
13512  **/
13513 static void
13514 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
13515 {
13516         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13517                         "2710 PCI channel disable preparing for reset\n");
13518
13519         /* Block any management I/Os to the device */
13520         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
13521
13522         /* Block all SCSI devices' I/Os on the host */
13523         lpfc_scsi_dev_block(phba);
13524
13525         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
13526         lpfc_sli_flush_io_rings(phba);
13527
13528         /* stop all timers */
13529         lpfc_stop_hba_timers(phba);
13530
13531         /* Disable interrupt and pci device */
13532         lpfc_sli_disable_intr(phba);
13533         pci_disable_device(phba->pcidev);
13534 }
13535
13536 /**
13537  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
13538  * @phba: pointer to lpfc hba data structure.
13539  *
13540  * This routine is called to prepare the SLI3 device for PCI slot permanently
13541  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
13542  * pending I/Os.
13543  **/
13544 static void
13545 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
13546 {
13547         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13548                         "2711 PCI channel permanent disable for failure\n");
13549         /* Block all SCSI devices' I/Os on the host */
13550         lpfc_scsi_dev_block(phba);
13551
13552         /* stop all timers */
13553         lpfc_stop_hba_timers(phba);
13554
13555         /* Clean up all driver's outstanding SCSI I/Os */
13556         lpfc_sli_flush_io_rings(phba);
13557 }
13558
13559 /**
13560  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
13561  * @pdev: pointer to PCI device.
13562  * @state: the current PCI connection state.
13563  *
13564  * This routine is called from the PCI subsystem for I/O error handling to
13565  * device with SLI-3 interface spec. This function is called by the PCI
13566  * subsystem after a PCI bus error affecting this device has been detected.
13567  * When this function is invoked, it will need to stop all the I/Os and
13568  * interrupt(s) to the device. Once that is done, it will return
13569  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
13570  * as desired.
13571  *
13572  * Return codes
13573  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
13574  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
13575  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13576  **/
13577 static pci_ers_result_t
13578 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
13579 {
13580         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13581         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13582
13583         switch (state) {
13584         case pci_channel_io_normal:
13585                 /* Non-fatal error, prepare for recovery */
13586                 lpfc_sli_prep_dev_for_recover(phba);
13587                 return PCI_ERS_RESULT_CAN_RECOVER;
13588         case pci_channel_io_frozen:
13589                 /* Fatal error, prepare for slot reset */
13590                 lpfc_sli_prep_dev_for_reset(phba);
13591                 return PCI_ERS_RESULT_NEED_RESET;
13592         case pci_channel_io_perm_failure:
13593                 /* Permanent failure, prepare for device down */
13594                 lpfc_sli_prep_dev_for_perm_failure(phba);
13595                 return PCI_ERS_RESULT_DISCONNECT;
13596         default:
13597                 /* Unknown state, prepare and request slot reset */
13598                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13599                                 "0472 Unknown PCI error state: x%x\n", state);
13600                 lpfc_sli_prep_dev_for_reset(phba);
13601                 return PCI_ERS_RESULT_NEED_RESET;
13602         }
13603 }
13604
13605 /**
13606  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
13607  * @pdev: pointer to PCI device.
13608  *
13609  * This routine is called from the PCI subsystem for error handling to
13610  * device with SLI-3 interface spec. This is called after PCI bus has been
13611  * reset to restart the PCI card from scratch, as if from a cold-boot.
13612  * During the PCI subsystem error recovery, after driver returns
13613  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
13614  * recovery and then call this routine before calling the .resume method
13615  * to recover the device. This function will initialize the HBA device,
13616  * enable the interrupt, but it will just put the HBA to offline state
13617  * without passing any I/O traffic.
13618  *
13619  * Return codes
13620  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
13621  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13622  */
13623 static pci_ers_result_t
13624 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
13625 {
13626         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13627         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13628         struct lpfc_sli *psli = &phba->sli;
13629         uint32_t intr_mode;
13630
13631         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
13632         if (pci_enable_device_mem(pdev)) {
13633                 printk(KERN_ERR "lpfc: Cannot re-enable "
13634                         "PCI device after reset.\n");
13635                 return PCI_ERS_RESULT_DISCONNECT;
13636         }
13637
13638         pci_restore_state(pdev);
13639
13640         /*
13641          * As the new kernel behavior of pci_restore_state() API call clears
13642          * device saved_state flag, need to save the restored state again.
13643          */
13644         pci_save_state(pdev);
13645
13646         if (pdev->is_busmaster)
13647                 pci_set_master(pdev);
13648
13649         spin_lock_irq(&phba->hbalock);
13650         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
13651         spin_unlock_irq(&phba->hbalock);
13652
13653         /* Configure and enable interrupt */
13654         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
13655         if (intr_mode == LPFC_INTR_ERROR) {
13656                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13657                                 "0427 Cannot re-enable interrupt after "
13658                                 "slot reset.\n");
13659                 return PCI_ERS_RESULT_DISCONNECT;
13660         } else
13661                 phba->intr_mode = intr_mode;
13662
13663         /* Take device offline, it will perform cleanup */
13664         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
13665         lpfc_offline(phba);
13666         lpfc_sli_brdrestart(phba);
13667
13668         /* Log the current active interrupt mode */
13669         lpfc_log_intr_mode(phba, phba->intr_mode);
13670
13671         return PCI_ERS_RESULT_RECOVERED;
13672 }
13673
13674 /**
13675  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
13676  * @pdev: pointer to PCI device
13677  *
13678  * This routine is called from the PCI subsystem for error handling to device
13679  * with SLI-3 interface spec. It is called when kernel error recovery tells
13680  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
13681  * error recovery. After this call, traffic can start to flow from this device
13682  * again.
13683  */
13684 static void
13685 lpfc_io_resume_s3(struct pci_dev *pdev)
13686 {
13687         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13688         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13689
13690         /* Bring device online, it will be no-op for non-fatal error resume */
13691         lpfc_online(phba);
13692 }
13693
13694 /**
13695  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
13696  * @phba: pointer to lpfc hba data structure.
13697  *
13698  * returns the number of ELS/CT IOCBs to reserve
13699  **/
13700 int
13701 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
13702 {
13703         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
13704
13705         if (phba->sli_rev == LPFC_SLI_REV4) {
13706                 if (max_xri <= 100)
13707                         return 10;
13708                 else if (max_xri <= 256)
13709                         return 25;
13710                 else if (max_xri <= 512)
13711                         return 50;
13712                 else if (max_xri <= 1024)
13713                         return 100;
13714                 else if (max_xri <= 1536)
13715                         return 150;
13716                 else if (max_xri <= 2048)
13717                         return 200;
13718                 else
13719                         return 250;
13720         } else
13721                 return 0;
13722 }
13723
13724 /**
13725  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
13726  * @phba: pointer to lpfc hba data structure.
13727  *
13728  * returns the number of ELS/CT + NVMET IOCBs to reserve
13729  **/
13730 int
13731 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
13732 {
13733         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
13734
13735         if (phba->nvmet_support)
13736                 max_xri += LPFC_NVMET_BUF_POST;
13737         return max_xri;
13738 }
13739
13740
13741 static int
13742 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
13743         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
13744         const struct firmware *fw)
13745 {
13746         int rc;
13747         u8 sli_family;
13748
13749         sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
13750         /* Three cases:  (1) FW was not supported on the detected adapter.
13751          * (2) FW update has been locked out administratively.
13752          * (3) Some other error during FW update.
13753          * In each case, an unmaskable message is written to the console
13754          * for admin diagnosis.
13755          */
13756         if (offset == ADD_STATUS_FW_NOT_SUPPORTED ||
13757             (sli_family == LPFC_SLI_INTF_FAMILY_G6 &&
13758              magic_number != MAGIC_NUMBER_G6) ||
13759             (sli_family == LPFC_SLI_INTF_FAMILY_G7 &&
13760              magic_number != MAGIC_NUMBER_G7) ||
13761             (sli_family == LPFC_SLI_INTF_FAMILY_G7P &&
13762              magic_number != MAGIC_NUMBER_G7P)) {
13763                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13764                                 "3030 This firmware version is not supported on"
13765                                 " this HBA model. Device:%x Magic:%x Type:%x "
13766                                 "ID:%x Size %d %zd\n",
13767                                 phba->pcidev->device, magic_number, ftype, fid,
13768                                 fsize, fw->size);
13769                 rc = -EINVAL;
13770         } else if (offset == ADD_STATUS_FW_DOWNLOAD_HW_DISABLED) {
13771                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13772                                 "3021 Firmware downloads have been prohibited "
13773                                 "by a system configuration setting on "
13774                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
13775                                 "%zd\n",
13776                                 phba->pcidev->device, magic_number, ftype, fid,
13777                                 fsize, fw->size);
13778                 rc = -EACCES;
13779         } else {
13780                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13781                                 "3022 FW Download failed. Add Status x%x "
13782                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
13783                                 "%zd\n",
13784                                 offset, phba->pcidev->device, magic_number,
13785                                 ftype, fid, fsize, fw->size);
13786                 rc = -EIO;
13787         }
13788         return rc;
13789 }
13790
13791 /**
13792  * lpfc_write_firmware - attempt to write a firmware image to the port
13793  * @fw: pointer to firmware image returned from request_firmware.
13794  * @context: pointer to firmware image returned from request_firmware.
13795  *
13796  **/
13797 static void
13798 lpfc_write_firmware(const struct firmware *fw, void *context)
13799 {
13800         struct lpfc_hba *phba = (struct lpfc_hba *)context;
13801         char fwrev[FW_REV_STR_SIZE];
13802         struct lpfc_grp_hdr *image;
13803         struct list_head dma_buffer_list;
13804         int i, rc = 0;
13805         struct lpfc_dmabuf *dmabuf, *next;
13806         uint32_t offset = 0, temp_offset = 0;
13807         uint32_t magic_number, ftype, fid, fsize;
13808
13809         /* It can be null in no-wait mode, sanity check */
13810         if (!fw) {
13811                 rc = -ENXIO;
13812                 goto out;
13813         }
13814         image = (struct lpfc_grp_hdr *)fw->data;
13815
13816         magic_number = be32_to_cpu(image->magic_number);
13817         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
13818         fid = bf_get_be32(lpfc_grp_hdr_id, image);
13819         fsize = be32_to_cpu(image->size);
13820
13821         INIT_LIST_HEAD(&dma_buffer_list);
13822         lpfc_decode_firmware_rev(phba, fwrev, 1);
13823         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
13824                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13825                                 "3023 Updating Firmware, Current Version:%s "
13826                                 "New Version:%s\n",
13827                                 fwrev, image->revision);
13828                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
13829                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
13830                                          GFP_KERNEL);
13831                         if (!dmabuf) {
13832                                 rc = -ENOMEM;
13833                                 goto release_out;
13834                         }
13835                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
13836                                                           SLI4_PAGE_SIZE,
13837                                                           &dmabuf->phys,
13838                                                           GFP_KERNEL);
13839                         if (!dmabuf->virt) {
13840                                 kfree(dmabuf);
13841                                 rc = -ENOMEM;
13842                                 goto release_out;
13843                         }
13844                         list_add_tail(&dmabuf->list, &dma_buffer_list);
13845                 }
13846                 while (offset < fw->size) {
13847                         temp_offset = offset;
13848                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
13849                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
13850                                         memcpy(dmabuf->virt,
13851                                                fw->data + temp_offset,
13852                                                fw->size - temp_offset);
13853                                         temp_offset = fw->size;
13854                                         break;
13855                                 }
13856                                 memcpy(dmabuf->virt, fw->data + temp_offset,
13857                                        SLI4_PAGE_SIZE);
13858                                 temp_offset += SLI4_PAGE_SIZE;
13859                         }
13860                         rc = lpfc_wr_object(phba, &dma_buffer_list,
13861                                     (fw->size - offset), &offset);
13862                         if (rc) {
13863                                 rc = lpfc_log_write_firmware_error(phba, offset,
13864                                                                    magic_number,
13865                                                                    ftype,
13866                                                                    fid,
13867                                                                    fsize,
13868                                                                    fw);
13869                                 goto release_out;
13870                         }
13871                 }
13872                 rc = offset;
13873         } else
13874                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13875                                 "3029 Skipped Firmware update, Current "
13876                                 "Version:%s New Version:%s\n",
13877                                 fwrev, image->revision);
13878
13879 release_out:
13880         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
13881                 list_del(&dmabuf->list);
13882                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
13883                                   dmabuf->virt, dmabuf->phys);
13884                 kfree(dmabuf);
13885         }
13886         release_firmware(fw);
13887 out:
13888         if (rc < 0)
13889                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13890                                 "3062 Firmware update error, status %d.\n", rc);
13891         else
13892                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13893                                 "3024 Firmware update success: size %d.\n", rc);
13894 }
13895
13896 /**
13897  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
13898  * @phba: pointer to lpfc hba data structure.
13899  * @fw_upgrade: which firmware to update.
13900  *
13901  * This routine is called to perform Linux generic firmware upgrade on device
13902  * that supports such feature.
13903  **/
13904 int
13905 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
13906 {
13907         uint8_t file_name[ELX_MODEL_NAME_SIZE];
13908         int ret;
13909         const struct firmware *fw;
13910
13911         /* Only supported on SLI4 interface type 2 for now */
13912         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
13913             LPFC_SLI_INTF_IF_TYPE_2)
13914                 return -EPERM;
13915
13916         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
13917
13918         if (fw_upgrade == INT_FW_UPGRADE) {
13919                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_UEVENT,
13920                                         file_name, &phba->pcidev->dev,
13921                                         GFP_KERNEL, (void *)phba,
13922                                         lpfc_write_firmware);
13923         } else if (fw_upgrade == RUN_FW_UPGRADE) {
13924                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
13925                 if (!ret)
13926                         lpfc_write_firmware(fw, (void *)phba);
13927         } else {
13928                 ret = -EINVAL;
13929         }
13930
13931         return ret;
13932 }
13933
13934 /**
13935  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
13936  * @pdev: pointer to PCI device
13937  * @pid: pointer to PCI device identifier
13938  *
13939  * This routine is called from the kernel's PCI subsystem to device with
13940  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
13941  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
13942  * information of the device and driver to see if the driver state that it
13943  * can support this kind of device. If the match is successful, the driver
13944  * core invokes this routine. If this routine determines it can claim the HBA,
13945  * it does all the initialization that it needs to do to handle the HBA
13946  * properly.
13947  *
13948  * Return code
13949  *      0 - driver can claim the device
13950  *      negative value - driver can not claim the device
13951  **/
13952 static int
13953 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
13954 {
13955         struct lpfc_hba   *phba;
13956         struct lpfc_vport *vport = NULL;
13957         struct Scsi_Host  *shost = NULL;
13958         int error;
13959         uint32_t cfg_mode, intr_mode;
13960
13961         /* Allocate memory for HBA structure */
13962         phba = lpfc_hba_alloc(pdev);
13963         if (!phba)
13964                 return -ENOMEM;
13965
13966         /* Perform generic PCI device enabling operation */
13967         error = lpfc_enable_pci_dev(phba);
13968         if (error)
13969                 goto out_free_phba;
13970
13971         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
13972         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
13973         if (error)
13974                 goto out_disable_pci_dev;
13975
13976         /* Set up SLI-4 specific device PCI memory space */
13977         error = lpfc_sli4_pci_mem_setup(phba);
13978         if (error) {
13979                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13980                                 "1410 Failed to set up pci memory space.\n");
13981                 goto out_disable_pci_dev;
13982         }
13983
13984         /* Set up SLI-4 Specific device driver resources */
13985         error = lpfc_sli4_driver_resource_setup(phba);
13986         if (error) {
13987                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13988                                 "1412 Failed to set up driver resource.\n");
13989                 goto out_unset_pci_mem_s4;
13990         }
13991
13992         INIT_LIST_HEAD(&phba->active_rrq_list);
13993         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
13994
13995         /* Set up common device driver resources */
13996         error = lpfc_setup_driver_resource_phase2(phba);
13997         if (error) {
13998                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13999                                 "1414 Failed to set up driver resource.\n");
14000                 goto out_unset_driver_resource_s4;
14001         }
14002
14003         /* Get the default values for Model Name and Description */
14004         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
14005
14006         /* Now, trying to enable interrupt and bring up the device */
14007         cfg_mode = phba->cfg_use_msi;
14008
14009         /* Put device to a known state before enabling interrupt */
14010         phba->pport = NULL;
14011         lpfc_stop_port(phba);
14012
14013         /* Init cpu_map array */
14014         lpfc_cpu_map_array_init(phba);
14015
14016         /* Init hba_eq_hdl array */
14017         lpfc_hba_eq_hdl_array_init(phba);
14018
14019         /* Configure and enable interrupt */
14020         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
14021         if (intr_mode == LPFC_INTR_ERROR) {
14022                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14023                                 "0426 Failed to enable interrupt.\n");
14024                 error = -ENODEV;
14025                 goto out_unset_driver_resource;
14026         }
14027         /* Default to single EQ for non-MSI-X */
14028         if (phba->intr_type != MSIX) {
14029                 phba->cfg_irq_chann = 1;
14030                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14031                         if (phba->nvmet_support)
14032                                 phba->cfg_nvmet_mrq = 1;
14033                 }
14034         }
14035         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
14036
14037         /* Create SCSI host to the physical port */
14038         error = lpfc_create_shost(phba);
14039         if (error) {
14040                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14041                                 "1415 Failed to create scsi host.\n");
14042                 goto out_disable_intr;
14043         }
14044         vport = phba->pport;
14045         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
14046
14047         /* Configure sysfs attributes */
14048         error = lpfc_alloc_sysfs_attr(vport);
14049         if (error) {
14050                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14051                                 "1416 Failed to allocate sysfs attr\n");
14052                 goto out_destroy_shost;
14053         }
14054
14055         /* Set up SLI-4 HBA */
14056         if (lpfc_sli4_hba_setup(phba)) {
14057                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14058                                 "1421 Failed to set up hba\n");
14059                 error = -ENODEV;
14060                 goto out_free_sysfs_attr;
14061         }
14062
14063         /* Log the current active interrupt mode */
14064         phba->intr_mode = intr_mode;
14065         lpfc_log_intr_mode(phba, intr_mode);
14066
14067         /* Perform post initialization setup */
14068         lpfc_post_init_setup(phba);
14069
14070         /* NVME support in FW earlier in the driver load corrects the
14071          * FC4 type making a check for nvme_support unnecessary.
14072          */
14073         if (phba->nvmet_support == 0) {
14074                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14075                         /* Create NVME binding with nvme_fc_transport. This
14076                          * ensures the vport is initialized.  If the localport
14077                          * create fails, it should not unload the driver to
14078                          * support field issues.
14079                          */
14080                         error = lpfc_nvme_create_localport(vport);
14081                         if (error) {
14082                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14083                                                 "6004 NVME registration "
14084                                                 "failed, error x%x\n",
14085                                                 error);
14086                         }
14087                 }
14088         }
14089
14090         /* check for firmware upgrade or downgrade */
14091         if (phba->cfg_request_firmware_upgrade)
14092                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
14093
14094         /* Check if there are static vports to be created. */
14095         lpfc_create_static_vport(phba);
14096
14097         /* Enable RAS FW log support */
14098         lpfc_sli4_ras_setup(phba);
14099
14100         INIT_LIST_HEAD(&phba->poll_list);
14101         timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
14102         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state, &phba->cpuhp);
14103
14104         return 0;
14105
14106 out_free_sysfs_attr:
14107         lpfc_free_sysfs_attr(vport);
14108 out_destroy_shost:
14109         lpfc_destroy_shost(phba);
14110 out_disable_intr:
14111         lpfc_sli4_disable_intr(phba);
14112 out_unset_driver_resource:
14113         lpfc_unset_driver_resource_phase2(phba);
14114 out_unset_driver_resource_s4:
14115         lpfc_sli4_driver_resource_unset(phba);
14116 out_unset_pci_mem_s4:
14117         lpfc_sli4_pci_mem_unset(phba);
14118 out_disable_pci_dev:
14119         lpfc_disable_pci_dev(phba);
14120         if (shost)
14121                 scsi_host_put(shost);
14122 out_free_phba:
14123         lpfc_hba_free(phba);
14124         return error;
14125 }
14126
14127 /**
14128  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
14129  * @pdev: pointer to PCI device
14130  *
14131  * This routine is called from the kernel's PCI subsystem to device with
14132  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
14133  * removed from PCI bus, it performs all the necessary cleanup for the HBA
14134  * device to be removed from the PCI subsystem properly.
14135  **/
14136 static void
14137 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
14138 {
14139         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14140         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
14141         struct lpfc_vport **vports;
14142         struct lpfc_hba *phba = vport->phba;
14143         int i;
14144
14145         /* Mark the device unloading flag */
14146         spin_lock_irq(&phba->hbalock);
14147         vport->load_flag |= FC_UNLOADING;
14148         spin_unlock_irq(&phba->hbalock);
14149         if (phba->cgn_i)
14150                 lpfc_unreg_congestion_buf(phba);
14151
14152         lpfc_free_sysfs_attr(vport);
14153
14154         /* Release all the vports against this physical port */
14155         vports = lpfc_create_vport_work_array(phba);
14156         if (vports != NULL)
14157                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
14158                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
14159                                 continue;
14160                         fc_vport_terminate(vports[i]->fc_vport);
14161                 }
14162         lpfc_destroy_vport_work_array(phba, vports);
14163
14164         /* Remove FC host with the physical port */
14165         fc_remove_host(shost);
14166         scsi_remove_host(shost);
14167
14168         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
14169          * localports are destroyed after to cleanup all transport memory.
14170          */
14171         lpfc_cleanup(vport);
14172         lpfc_nvmet_destroy_targetport(phba);
14173         lpfc_nvme_destroy_localport(vport);
14174
14175         /* De-allocate multi-XRI pools */
14176         if (phba->cfg_xri_rebalancing)
14177                 lpfc_destroy_multixri_pools(phba);
14178
14179         /*
14180          * Bring down the SLI Layer. This step disables all interrupts,
14181          * clears the rings, discards all mailbox commands, and resets
14182          * the HBA FCoE function.
14183          */
14184         lpfc_debugfs_terminate(vport);
14185
14186         lpfc_stop_hba_timers(phba);
14187         spin_lock_irq(&phba->port_list_lock);
14188         list_del_init(&vport->listentry);
14189         spin_unlock_irq(&phba->port_list_lock);
14190
14191         /* Perform scsi free before driver resource_unset since scsi
14192          * buffers are released to their corresponding pools here.
14193          */
14194         lpfc_io_free(phba);
14195         lpfc_free_iocb_list(phba);
14196         lpfc_sli4_hba_unset(phba);
14197
14198         lpfc_unset_driver_resource_phase2(phba);
14199         lpfc_sli4_driver_resource_unset(phba);
14200
14201         /* Unmap adapter Control and Doorbell registers */
14202         lpfc_sli4_pci_mem_unset(phba);
14203
14204         /* Release PCI resources and disable device's PCI function */
14205         scsi_host_put(shost);
14206         lpfc_disable_pci_dev(phba);
14207
14208         /* Finally, free the driver's device data structure */
14209         lpfc_hba_free(phba);
14210
14211         return;
14212 }
14213
14214 /**
14215  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
14216  * @dev_d: pointer to device
14217  *
14218  * This routine is called from the kernel's PCI subsystem to support system
14219  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
14220  * this method, it quiesces the device by stopping the driver's worker
14221  * thread for the device, turning off device's interrupt and DMA, and bring
14222  * the device offline. Note that as the driver implements the minimum PM
14223  * requirements to a power-aware driver's PM support for suspend/resume -- all
14224  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
14225  * method call will be treated as SUSPEND and the driver will fully
14226  * reinitialize its device during resume() method call, the driver will set
14227  * device to PCI_D3hot state in PCI config space instead of setting it
14228  * according to the @msg provided by the PM.
14229  *
14230  * Return code
14231  *      0 - driver suspended the device
14232  *      Error otherwise
14233  **/
14234 static int __maybe_unused
14235 lpfc_pci_suspend_one_s4(struct device *dev_d)
14236 {
14237         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14238         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14239
14240         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14241                         "2843 PCI device Power Management suspend.\n");
14242
14243         /* Bring down the device */
14244         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14245         lpfc_offline(phba);
14246         kthread_stop(phba->worker_thread);
14247
14248         /* Disable interrupt from device */
14249         lpfc_sli4_disable_intr(phba);
14250         lpfc_sli4_queue_destroy(phba);
14251
14252         return 0;
14253 }
14254
14255 /**
14256  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
14257  * @dev_d: pointer to device
14258  *
14259  * This routine is called from the kernel's PCI subsystem to support system
14260  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
14261  * this method, it restores the device's PCI config space state and fully
14262  * reinitializes the device and brings it online. Note that as the driver
14263  * implements the minimum PM requirements to a power-aware driver's PM for
14264  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
14265  * to the suspend() method call will be treated as SUSPEND and the driver
14266  * will fully reinitialize its device during resume() method call, the device
14267  * will be set to PCI_D0 directly in PCI config space before restoring the
14268  * state.
14269  *
14270  * Return code
14271  *      0 - driver suspended the device
14272  *      Error otherwise
14273  **/
14274 static int __maybe_unused
14275 lpfc_pci_resume_one_s4(struct device *dev_d)
14276 {
14277         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14278         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14279         uint32_t intr_mode;
14280         int error;
14281
14282         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14283                         "0292 PCI device Power Management resume.\n");
14284
14285          /* Startup the kernel thread for this host adapter. */
14286         phba->worker_thread = kthread_run(lpfc_do_work, phba,
14287                                         "lpfc_worker_%d", phba->brd_no);
14288         if (IS_ERR(phba->worker_thread)) {
14289                 error = PTR_ERR(phba->worker_thread);
14290                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14291                                 "0293 PM resume failed to start worker "
14292                                 "thread: error=x%x.\n", error);
14293                 return error;
14294         }
14295
14296         /* Configure and enable interrupt */
14297         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
14298         if (intr_mode == LPFC_INTR_ERROR) {
14299                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14300                                 "0294 PM resume Failed to enable interrupt\n");
14301                 return -EIO;
14302         } else
14303                 phba->intr_mode = intr_mode;
14304
14305         /* Restart HBA and bring it online */
14306         lpfc_sli_brdrestart(phba);
14307         lpfc_online(phba);
14308
14309         /* Log the current active interrupt mode */
14310         lpfc_log_intr_mode(phba, phba->intr_mode);
14311
14312         return 0;
14313 }
14314
14315 /**
14316  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
14317  * @phba: pointer to lpfc hba data structure.
14318  *
14319  * This routine is called to prepare the SLI4 device for PCI slot recover. It
14320  * aborts all the outstanding SCSI I/Os to the pci device.
14321  **/
14322 static void
14323 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
14324 {
14325         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14326                         "2828 PCI channel I/O abort preparing for recovery\n");
14327         /*
14328          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
14329          * and let the SCSI mid-layer to retry them to recover.
14330          */
14331         lpfc_sli_abort_fcp_rings(phba);
14332 }
14333
14334 /**
14335  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
14336  * @phba: pointer to lpfc hba data structure.
14337  *
14338  * This routine is called to prepare the SLI4 device for PCI slot reset. It
14339  * disables the device interrupt and pci device, and aborts the internal FCP
14340  * pending I/Os.
14341  **/
14342 static void
14343 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
14344 {
14345         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14346                         "2826 PCI channel disable preparing for reset\n");
14347
14348         /* Block any management I/Os to the device */
14349         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
14350
14351         /* Block all SCSI devices' I/Os on the host */
14352         lpfc_scsi_dev_block(phba);
14353
14354         /* Flush all driver's outstanding I/Os as we are to reset */
14355         lpfc_sli_flush_io_rings(phba);
14356
14357         /* stop all timers */
14358         lpfc_stop_hba_timers(phba);
14359
14360         /* Disable interrupt and pci device */
14361         lpfc_sli4_disable_intr(phba);
14362         lpfc_sli4_queue_destroy(phba);
14363         pci_disable_device(phba->pcidev);
14364 }
14365
14366 /**
14367  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
14368  * @phba: pointer to lpfc hba data structure.
14369  *
14370  * This routine is called to prepare the SLI4 device for PCI slot permanently
14371  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
14372  * pending I/Os.
14373  **/
14374 static void
14375 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
14376 {
14377         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14378                         "2827 PCI channel permanent disable for failure\n");
14379
14380         /* Block all SCSI devices' I/Os on the host */
14381         lpfc_scsi_dev_block(phba);
14382
14383         /* stop all timers */
14384         lpfc_stop_hba_timers(phba);
14385
14386         /* Clean up all driver's outstanding I/Os */
14387         lpfc_sli_flush_io_rings(phba);
14388 }
14389
14390 /**
14391  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
14392  * @pdev: pointer to PCI device.
14393  * @state: the current PCI connection state.
14394  *
14395  * This routine is called from the PCI subsystem for error handling to device
14396  * with SLI-4 interface spec. This function is called by the PCI subsystem
14397  * after a PCI bus error affecting this device has been detected. When this
14398  * function is invoked, it will need to stop all the I/Os and interrupt(s)
14399  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
14400  * for the PCI subsystem to perform proper recovery as desired.
14401  *
14402  * Return codes
14403  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
14404  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14405  **/
14406 static pci_ers_result_t
14407 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
14408 {
14409         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14410         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14411
14412         switch (state) {
14413         case pci_channel_io_normal:
14414                 /* Non-fatal error, prepare for recovery */
14415                 lpfc_sli4_prep_dev_for_recover(phba);
14416                 return PCI_ERS_RESULT_CAN_RECOVER;
14417         case pci_channel_io_frozen:
14418                 /* Fatal error, prepare for slot reset */
14419                 lpfc_sli4_prep_dev_for_reset(phba);
14420                 return PCI_ERS_RESULT_NEED_RESET;
14421         case pci_channel_io_perm_failure:
14422                 /* Permanent failure, prepare for device down */
14423                 lpfc_sli4_prep_dev_for_perm_failure(phba);
14424                 return PCI_ERS_RESULT_DISCONNECT;
14425         default:
14426                 /* Unknown state, prepare and request slot reset */
14427                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14428                                 "2825 Unknown PCI error state: x%x\n", state);
14429                 lpfc_sli4_prep_dev_for_reset(phba);
14430                 return PCI_ERS_RESULT_NEED_RESET;
14431         }
14432 }
14433
14434 /**
14435  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
14436  * @pdev: pointer to PCI device.
14437  *
14438  * This routine is called from the PCI subsystem for error handling to device
14439  * with SLI-4 interface spec. It is called after PCI bus has been reset to
14440  * restart the PCI card from scratch, as if from a cold-boot. During the
14441  * PCI subsystem error recovery, after the driver returns
14442  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
14443  * recovery and then call this routine before calling the .resume method to
14444  * recover the device. This function will initialize the HBA device, enable
14445  * the interrupt, but it will just put the HBA to offline state without
14446  * passing any I/O traffic.
14447  *
14448  * Return codes
14449  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
14450  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14451  */
14452 static pci_ers_result_t
14453 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
14454 {
14455         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14456         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14457         struct lpfc_sli *psli = &phba->sli;
14458         uint32_t intr_mode;
14459
14460         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
14461         if (pci_enable_device_mem(pdev)) {
14462                 printk(KERN_ERR "lpfc: Cannot re-enable "
14463                         "PCI device after reset.\n");
14464                 return PCI_ERS_RESULT_DISCONNECT;
14465         }
14466
14467         pci_restore_state(pdev);
14468
14469         /*
14470          * As the new kernel behavior of pci_restore_state() API call clears
14471          * device saved_state flag, need to save the restored state again.
14472          */
14473         pci_save_state(pdev);
14474
14475         if (pdev->is_busmaster)
14476                 pci_set_master(pdev);
14477
14478         spin_lock_irq(&phba->hbalock);
14479         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
14480         spin_unlock_irq(&phba->hbalock);
14481
14482         /* Configure and enable interrupt */
14483         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
14484         if (intr_mode == LPFC_INTR_ERROR) {
14485                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14486                                 "2824 Cannot re-enable interrupt after "
14487                                 "slot reset.\n");
14488                 return PCI_ERS_RESULT_DISCONNECT;
14489         } else
14490                 phba->intr_mode = intr_mode;
14491
14492         /* Log the current active interrupt mode */
14493         lpfc_log_intr_mode(phba, phba->intr_mode);
14494
14495         return PCI_ERS_RESULT_RECOVERED;
14496 }
14497
14498 /**
14499  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
14500  * @pdev: pointer to PCI device
14501  *
14502  * This routine is called from the PCI subsystem for error handling to device
14503  * with SLI-4 interface spec. It is called when kernel error recovery tells
14504  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
14505  * error recovery. After this call, traffic can start to flow from this device
14506  * again.
14507  **/
14508 static void
14509 lpfc_io_resume_s4(struct pci_dev *pdev)
14510 {
14511         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14512         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14513
14514         /*
14515          * In case of slot reset, as function reset is performed through
14516          * mailbox command which needs DMA to be enabled, this operation
14517          * has to be moved to the io resume phase. Taking device offline
14518          * will perform the necessary cleanup.
14519          */
14520         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
14521                 /* Perform device reset */
14522                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14523                 lpfc_offline(phba);
14524                 lpfc_sli_brdrestart(phba);
14525                 /* Bring the device back online */
14526                 lpfc_online(phba);
14527         }
14528 }
14529
14530 /**
14531  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
14532  * @pdev: pointer to PCI device
14533  * @pid: pointer to PCI device identifier
14534  *
14535  * This routine is to be registered to the kernel's PCI subsystem. When an
14536  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
14537  * at PCI device-specific information of the device and driver to see if the
14538  * driver state that it can support this kind of device. If the match is
14539  * successful, the driver core invokes this routine. This routine dispatches
14540  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
14541  * do all the initialization that it needs to do to handle the HBA device
14542  * properly.
14543  *
14544  * Return code
14545  *      0 - driver can claim the device
14546  *      negative value - driver can not claim the device
14547  **/
14548 static int
14549 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
14550 {
14551         int rc;
14552         struct lpfc_sli_intf intf;
14553
14554         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
14555                 return -ENODEV;
14556
14557         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
14558             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
14559                 rc = lpfc_pci_probe_one_s4(pdev, pid);
14560         else
14561                 rc = lpfc_pci_probe_one_s3(pdev, pid);
14562
14563         return rc;
14564 }
14565
14566 /**
14567  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
14568  * @pdev: pointer to PCI device
14569  *
14570  * This routine is to be registered to the kernel's PCI subsystem. When an
14571  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
14572  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
14573  * remove routine, which will perform all the necessary cleanup for the
14574  * device to be removed from the PCI subsystem properly.
14575  **/
14576 static void
14577 lpfc_pci_remove_one(struct pci_dev *pdev)
14578 {
14579         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14580         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14581
14582         switch (phba->pci_dev_grp) {
14583         case LPFC_PCI_DEV_LP:
14584                 lpfc_pci_remove_one_s3(pdev);
14585                 break;
14586         case LPFC_PCI_DEV_OC:
14587                 lpfc_pci_remove_one_s4(pdev);
14588                 break;
14589         default:
14590                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14591                                 "1424 Invalid PCI device group: 0x%x\n",
14592                                 phba->pci_dev_grp);
14593                 break;
14594         }
14595         return;
14596 }
14597
14598 /**
14599  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
14600  * @dev: pointer to device
14601  *
14602  * This routine is to be registered to the kernel's PCI subsystem to support
14603  * system Power Management (PM). When PM invokes this method, it dispatches
14604  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
14605  * suspend the device.
14606  *
14607  * Return code
14608  *      0 - driver suspended the device
14609  *      Error otherwise
14610  **/
14611 static int __maybe_unused
14612 lpfc_pci_suspend_one(struct device *dev)
14613 {
14614         struct Scsi_Host *shost = dev_get_drvdata(dev);
14615         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14616         int rc = -ENODEV;
14617
14618         switch (phba->pci_dev_grp) {
14619         case LPFC_PCI_DEV_LP:
14620                 rc = lpfc_pci_suspend_one_s3(dev);
14621                 break;
14622         case LPFC_PCI_DEV_OC:
14623                 rc = lpfc_pci_suspend_one_s4(dev);
14624                 break;
14625         default:
14626                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14627                                 "1425 Invalid PCI device group: 0x%x\n",
14628                                 phba->pci_dev_grp);
14629                 break;
14630         }
14631         return rc;
14632 }
14633
14634 /**
14635  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
14636  * @dev: pointer to device
14637  *
14638  * This routine is to be registered to the kernel's PCI subsystem to support
14639  * system Power Management (PM). When PM invokes this method, it dispatches
14640  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
14641  * resume the device.
14642  *
14643  * Return code
14644  *      0 - driver suspended the device
14645  *      Error otherwise
14646  **/
14647 static int __maybe_unused
14648 lpfc_pci_resume_one(struct device *dev)
14649 {
14650         struct Scsi_Host *shost = dev_get_drvdata(dev);
14651         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14652         int rc = -ENODEV;
14653
14654         switch (phba->pci_dev_grp) {
14655         case LPFC_PCI_DEV_LP:
14656                 rc = lpfc_pci_resume_one_s3(dev);
14657                 break;
14658         case LPFC_PCI_DEV_OC:
14659                 rc = lpfc_pci_resume_one_s4(dev);
14660                 break;
14661         default:
14662                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14663                                 "1426 Invalid PCI device group: 0x%x\n",
14664                                 phba->pci_dev_grp);
14665                 break;
14666         }
14667         return rc;
14668 }
14669
14670 /**
14671  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
14672  * @pdev: pointer to PCI device.
14673  * @state: the current PCI connection state.
14674  *
14675  * This routine is registered to the PCI subsystem for error handling. This
14676  * function is called by the PCI subsystem after a PCI bus error affecting
14677  * this device has been detected. When this routine is invoked, it dispatches
14678  * the action to the proper SLI-3 or SLI-4 device error detected handling
14679  * routine, which will perform the proper error detected operation.
14680  *
14681  * Return codes
14682  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
14683  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14684  **/
14685 static pci_ers_result_t
14686 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
14687 {
14688         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14689         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14690         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
14691
14692         switch (phba->pci_dev_grp) {
14693         case LPFC_PCI_DEV_LP:
14694                 rc = lpfc_io_error_detected_s3(pdev, state);
14695                 break;
14696         case LPFC_PCI_DEV_OC:
14697                 rc = lpfc_io_error_detected_s4(pdev, state);
14698                 break;
14699         default:
14700                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14701                                 "1427 Invalid PCI device group: 0x%x\n",
14702                                 phba->pci_dev_grp);
14703                 break;
14704         }
14705         return rc;
14706 }
14707
14708 /**
14709  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
14710  * @pdev: pointer to PCI device.
14711  *
14712  * This routine is registered to the PCI subsystem for error handling. This
14713  * function is called after PCI bus has been reset to restart the PCI card
14714  * from scratch, as if from a cold-boot. When this routine is invoked, it
14715  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
14716  * routine, which will perform the proper device reset.
14717  *
14718  * Return codes
14719  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
14720  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14721  **/
14722 static pci_ers_result_t
14723 lpfc_io_slot_reset(struct pci_dev *pdev)
14724 {
14725         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14726         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14727         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
14728
14729         switch (phba->pci_dev_grp) {
14730         case LPFC_PCI_DEV_LP:
14731                 rc = lpfc_io_slot_reset_s3(pdev);
14732                 break;
14733         case LPFC_PCI_DEV_OC:
14734                 rc = lpfc_io_slot_reset_s4(pdev);
14735                 break;
14736         default:
14737                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14738                                 "1428 Invalid PCI device group: 0x%x\n",
14739                                 phba->pci_dev_grp);
14740                 break;
14741         }
14742         return rc;
14743 }
14744
14745 /**
14746  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
14747  * @pdev: pointer to PCI device
14748  *
14749  * This routine is registered to the PCI subsystem for error handling. It
14750  * is called when kernel error recovery tells the lpfc driver that it is
14751  * OK to resume normal PCI operation after PCI bus error recovery. When
14752  * this routine is invoked, it dispatches the action to the proper SLI-3
14753  * or SLI-4 device io_resume routine, which will resume the device operation.
14754  **/
14755 static void
14756 lpfc_io_resume(struct pci_dev *pdev)
14757 {
14758         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14759         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14760
14761         switch (phba->pci_dev_grp) {
14762         case LPFC_PCI_DEV_LP:
14763                 lpfc_io_resume_s3(pdev);
14764                 break;
14765         case LPFC_PCI_DEV_OC:
14766                 lpfc_io_resume_s4(pdev);
14767                 break;
14768         default:
14769                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14770                                 "1429 Invalid PCI device group: 0x%x\n",
14771                                 phba->pci_dev_grp);
14772                 break;
14773         }
14774         return;
14775 }
14776
14777 /**
14778  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
14779  * @phba: pointer to lpfc hba data structure.
14780  *
14781  * This routine checks to see if OAS is supported for this adapter. If
14782  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
14783  * the enable oas flag is cleared and the pool created for OAS device data
14784  * is destroyed.
14785  *
14786  **/
14787 static void
14788 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
14789 {
14790
14791         if (!phba->cfg_EnableXLane)
14792                 return;
14793
14794         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
14795                 phba->cfg_fof = 1;
14796         } else {
14797                 phba->cfg_fof = 0;
14798                 mempool_destroy(phba->device_data_mem_pool);
14799                 phba->device_data_mem_pool = NULL;
14800         }
14801
14802         return;
14803 }
14804
14805 /**
14806  * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
14807  * @phba: pointer to lpfc hba data structure.
14808  *
14809  * This routine checks to see if RAS is supported by the adapter. Check the
14810  * function through which RAS support enablement is to be done.
14811  **/
14812 void
14813 lpfc_sli4_ras_init(struct lpfc_hba *phba)
14814 {
14815         /* if ASIC_GEN_NUM >= 0xC) */
14816         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
14817                     LPFC_SLI_INTF_IF_TYPE_6) ||
14818             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
14819                     LPFC_SLI_INTF_FAMILY_G6)) {
14820                 phba->ras_fwlog.ras_hwsupport = true;
14821                 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
14822                     phba->cfg_ras_fwlog_buffsize)
14823                         phba->ras_fwlog.ras_enabled = true;
14824                 else
14825                         phba->ras_fwlog.ras_enabled = false;
14826         } else {
14827                 phba->ras_fwlog.ras_hwsupport = false;
14828         }
14829 }
14830
14831
14832 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
14833
14834 static const struct pci_error_handlers lpfc_err_handler = {
14835         .error_detected = lpfc_io_error_detected,
14836         .slot_reset = lpfc_io_slot_reset,
14837         .resume = lpfc_io_resume,
14838 };
14839
14840 static SIMPLE_DEV_PM_OPS(lpfc_pci_pm_ops_one,
14841                          lpfc_pci_suspend_one,
14842                          lpfc_pci_resume_one);
14843
14844 static struct pci_driver lpfc_driver = {
14845         .name           = LPFC_DRIVER_NAME,
14846         .id_table       = lpfc_id_table,
14847         .probe          = lpfc_pci_probe_one,
14848         .remove         = lpfc_pci_remove_one,
14849         .shutdown       = lpfc_pci_remove_one,
14850         .driver.pm      = &lpfc_pci_pm_ops_one,
14851         .err_handler    = &lpfc_err_handler,
14852 };
14853
14854 static const struct file_operations lpfc_mgmt_fop = {
14855         .owner = THIS_MODULE,
14856 };
14857
14858 static struct miscdevice lpfc_mgmt_dev = {
14859         .minor = MISC_DYNAMIC_MINOR,
14860         .name = "lpfcmgmt",
14861         .fops = &lpfc_mgmt_fop,
14862 };
14863
14864 /**
14865  * lpfc_init - lpfc module initialization routine
14866  *
14867  * This routine is to be invoked when the lpfc module is loaded into the
14868  * kernel. The special kernel macro module_init() is used to indicate the
14869  * role of this routine to the kernel as lpfc module entry point.
14870  *
14871  * Return codes
14872  *   0 - successful
14873  *   -ENOMEM - FC attach transport failed
14874  *   all others - failed
14875  */
14876 static int __init
14877 lpfc_init(void)
14878 {
14879         int error = 0;
14880
14881         pr_info(LPFC_MODULE_DESC "\n");
14882         pr_info(LPFC_COPYRIGHT "\n");
14883
14884         error = misc_register(&lpfc_mgmt_dev);
14885         if (error)
14886                 printk(KERN_ERR "Could not register lpfcmgmt device, "
14887                         "misc_register returned with status %d", error);
14888
14889         error = -ENOMEM;
14890         lpfc_transport_functions.vport_create = lpfc_vport_create;
14891         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
14892         lpfc_transport_template =
14893                                 fc_attach_transport(&lpfc_transport_functions);
14894         if (lpfc_transport_template == NULL)
14895                 goto unregister;
14896         lpfc_vport_transport_template =
14897                 fc_attach_transport(&lpfc_vport_transport_functions);
14898         if (lpfc_vport_transport_template == NULL) {
14899                 fc_release_transport(lpfc_transport_template);
14900                 goto unregister;
14901         }
14902         lpfc_wqe_cmd_template();
14903         lpfc_nvmet_cmd_template();
14904
14905         /* Initialize in case vector mapping is needed */
14906         lpfc_present_cpu = num_present_cpus();
14907
14908         error = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
14909                                         "lpfc/sli4:online",
14910                                         lpfc_cpu_online, lpfc_cpu_offline);
14911         if (error < 0)
14912                 goto cpuhp_failure;
14913         lpfc_cpuhp_state = error;
14914
14915         error = pci_register_driver(&lpfc_driver);
14916         if (error)
14917                 goto unwind;
14918
14919         return error;
14920
14921 unwind:
14922         cpuhp_remove_multi_state(lpfc_cpuhp_state);
14923 cpuhp_failure:
14924         fc_release_transport(lpfc_transport_template);
14925         fc_release_transport(lpfc_vport_transport_template);
14926 unregister:
14927         misc_deregister(&lpfc_mgmt_dev);
14928
14929         return error;
14930 }
14931
14932 void lpfc_dmp_dbg(struct lpfc_hba *phba)
14933 {
14934         unsigned int start_idx;
14935         unsigned int dbg_cnt;
14936         unsigned int temp_idx;
14937         int i;
14938         int j = 0;
14939         unsigned long rem_nsec, iflags;
14940         bool log_verbose = false;
14941         struct lpfc_vport *port_iterator;
14942
14943         /* Don't dump messages if we explicitly set log_verbose for the
14944          * physical port or any vport.
14945          */
14946         if (phba->cfg_log_verbose)
14947                 return;
14948
14949         spin_lock_irqsave(&phba->port_list_lock, iflags);
14950         list_for_each_entry(port_iterator, &phba->port_list, listentry) {
14951                 if (port_iterator->load_flag & FC_UNLOADING)
14952                         continue;
14953                 if (scsi_host_get(lpfc_shost_from_vport(port_iterator))) {
14954                         if (port_iterator->cfg_log_verbose)
14955                                 log_verbose = true;
14956
14957                         scsi_host_put(lpfc_shost_from_vport(port_iterator));
14958
14959                         if (log_verbose) {
14960                                 spin_unlock_irqrestore(&phba->port_list_lock,
14961                                                        iflags);
14962                                 return;
14963                         }
14964                 }
14965         }
14966         spin_unlock_irqrestore(&phba->port_list_lock, iflags);
14967
14968         if (atomic_cmpxchg(&phba->dbg_log_dmping, 0, 1) != 0)
14969                 return;
14970
14971         start_idx = (unsigned int)atomic_read(&phba->dbg_log_idx) % DBG_LOG_SZ;
14972         dbg_cnt = (unsigned int)atomic_read(&phba->dbg_log_cnt);
14973         if (!dbg_cnt)
14974                 goto out;
14975         temp_idx = start_idx;
14976         if (dbg_cnt >= DBG_LOG_SZ) {
14977                 dbg_cnt = DBG_LOG_SZ;
14978                 temp_idx -= 1;
14979         } else {
14980                 if ((start_idx + dbg_cnt) > (DBG_LOG_SZ - 1)) {
14981                         temp_idx = (start_idx + dbg_cnt) % DBG_LOG_SZ;
14982                 } else {
14983                         if (start_idx < dbg_cnt)
14984                                 start_idx = DBG_LOG_SZ - (dbg_cnt - start_idx);
14985                         else
14986                                 start_idx -= dbg_cnt;
14987                 }
14988         }
14989         dev_info(&phba->pcidev->dev, "start %d end %d cnt %d\n",
14990                  start_idx, temp_idx, dbg_cnt);
14991
14992         for (i = 0; i < dbg_cnt; i++) {
14993                 if ((start_idx + i) < DBG_LOG_SZ)
14994                         temp_idx = (start_idx + i) % DBG_LOG_SZ;
14995                 else
14996                         temp_idx = j++;
14997                 rem_nsec = do_div(phba->dbg_log[temp_idx].t_ns, NSEC_PER_SEC);
14998                 dev_info(&phba->pcidev->dev, "%d: [%5lu.%06lu] %s",
14999                          temp_idx,
15000                          (unsigned long)phba->dbg_log[temp_idx].t_ns,
15001                          rem_nsec / 1000,
15002                          phba->dbg_log[temp_idx].log);
15003         }
15004 out:
15005         atomic_set(&phba->dbg_log_cnt, 0);
15006         atomic_set(&phba->dbg_log_dmping, 0);
15007 }
15008
15009 __printf(2, 3)
15010 void lpfc_dbg_print(struct lpfc_hba *phba, const char *fmt, ...)
15011 {
15012         unsigned int idx;
15013         va_list args;
15014         int dbg_dmping = atomic_read(&phba->dbg_log_dmping);
15015         struct va_format vaf;
15016
15017
15018         va_start(args, fmt);
15019         if (unlikely(dbg_dmping)) {
15020                 vaf.fmt = fmt;
15021                 vaf.va = &args;
15022                 dev_info(&phba->pcidev->dev, "%pV", &vaf);
15023                 va_end(args);
15024                 return;
15025         }
15026         idx = (unsigned int)atomic_fetch_add(1, &phba->dbg_log_idx) %
15027                 DBG_LOG_SZ;
15028
15029         atomic_inc(&phba->dbg_log_cnt);
15030
15031         vscnprintf(phba->dbg_log[idx].log,
15032                    sizeof(phba->dbg_log[idx].log), fmt, args);
15033         va_end(args);
15034
15035         phba->dbg_log[idx].t_ns = local_clock();
15036 }
15037
15038 /**
15039  * lpfc_exit - lpfc module removal routine
15040  *
15041  * This routine is invoked when the lpfc module is removed from the kernel.
15042  * The special kernel macro module_exit() is used to indicate the role of
15043  * this routine to the kernel as lpfc module exit point.
15044  */
15045 static void __exit
15046 lpfc_exit(void)
15047 {
15048         misc_deregister(&lpfc_mgmt_dev);
15049         pci_unregister_driver(&lpfc_driver);
15050         cpuhp_remove_multi_state(lpfc_cpuhp_state);
15051         fc_release_transport(lpfc_transport_template);
15052         fc_release_transport(lpfc_vport_transport_template);
15053         idr_destroy(&lpfc_hba_index);
15054 }
15055
15056 module_init(lpfc_init);
15057 module_exit(lpfc_exit);
15058 MODULE_LICENSE("GPL");
15059 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
15060 MODULE_AUTHOR("Broadcom");
15061 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);