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) 2017-2020 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
  97 static struct scsi_transport_template *lpfc_transport_template = NULL;
  98 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  99 static DEFINE_IDR(lpfc_hba_index);
 100 #define LPFC_NVMET_BUF_POST 254
 101
 102 /**
 103  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 104  * @phba: pointer to lpfc hba data structure.
 105  *
 106  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 107  * mailbox command. It retrieves the revision information from the HBA and
 108  * collects the Vital Product Data (VPD) about the HBA for preparing the
 109  * configuration of the HBA.
 110  *
 111  * Return codes:
 112  *   0 - success.
 113  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 114  *   Any other value - indicates an error.
 115  **/
 116 int
 117 lpfc_config_port_prep(struct lpfc_hba *phba)
 118 {
 119         lpfc_vpd_t *vp = &phba->vpd;
 120         int i = 0, rc;
 121         LPFC_MBOXQ_t *pmb;
 122         MAILBOX_t *mb;
 123         char *lpfc_vpd_data = NULL;
 124         uint16_t offset = 0;
 125         static char licensed[56] =
 126                     "key unlock for use with gnu public licensed code only\0";
 127         static int init_key = 1;
 128
 129         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 130         if (!pmb) {
 131                 phba->link_state = LPFC_HBA_ERROR;
 132                 return -ENOMEM;
 133         }
 134
 135         mb = &pmb->u.mb;
 136         phba->link_state = LPFC_INIT_MBX_CMDS;
 137
 138         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 139                 if (init_key) {
 140                         uint32_t *ptext = (uint32_t *) licensed;
 141
 142                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 143                                 *ptext = cpu_to_be32(*ptext);
 144                         init_key = 0;
 145                 }
 146
 147                 lpfc_read_nv(phba, pmb);
 148                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 149                         sizeof (mb->un.varRDnvp.rsvd3));
 150                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 151                          sizeof (licensed));
 152
 153                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 154
 155                 if (rc != MBX_SUCCESS) {
 156                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 157                                         "0324 Config Port initialization "
 158                                         "error, mbxCmd x%x READ_NVPARM, "
 159                                         "mbxStatus x%x\n",
 160                                         mb->mbxCommand, mb->mbxStatus);
 161                         mempool_free(pmb, phba->mbox_mem_pool);
 162                         return -ERESTART;
 163                 }
 164                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 165                        sizeof(phba->wwnn));
 166                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 167                        sizeof(phba->wwpn));
 168         }
 169
 170         /*
 171          * Clear all option bits except LPFC_SLI3_BG_ENABLED,
 172          * which was already set in lpfc_get_cfgparam()
 173          */
 174         phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
 175
 176         /* Setup and issue mailbox READ REV command */
 177         lpfc_read_rev(phba, pmb);
 178         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 179         if (rc != MBX_SUCCESS) {
 180                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 181                                 "0439 Adapter failed to init, mbxCmd x%x "
 182                                 "READ_REV, mbxStatus x%x\n",
 183                                 mb->mbxCommand, mb->mbxStatus);
 184                 mempool_free( pmb, phba->mbox_mem_pool);
 185                 return -ERESTART;
 186         }
 187
 188
 189         /*
 190          * The value of rr must be 1 since the driver set the cv field to 1.
 191          * This setting requires the FW to set all revision fields.
 192          */
 193         if (mb->un.varRdRev.rr == 0) {
 194                 vp->rev.rBit = 0;
 195                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 196                                 "0440 Adapter failed to init, READ_REV has "
 197                                 "missing revision information.\n");
 198                 mempool_free(pmb, phba->mbox_mem_pool);
 199                 return -ERESTART;
 200         }
 201
 202         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 203                 mempool_free(pmb, phba->mbox_mem_pool);
 204                 return -EINVAL;
 205         }
 206
 207         /* Save information as VPD data */
 208         vp->rev.rBit = 1;
 209         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 210         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 211         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 212         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 213         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 214         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 215         vp->rev.smRev = mb->un.varRdRev.smRev;
 216         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 217         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 218         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 219         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 220         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 221         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 222         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 223         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 224
 225         /* If the sli feature level is less then 9, we must
 226          * tear down all RPIs and VPIs on link down if NPIV
 227          * is enabled.
 228          */
 229         if (vp->rev.feaLevelHigh < 9)
 230                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 231
 232         if (lpfc_is_LC_HBA(phba->pcidev->device))
 233                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 234                                                 sizeof (phba->RandomData));
 235
 236         /* Get adapter VPD information */
 237         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 238         if (!lpfc_vpd_data)
 239                 goto out_free_mbox;
 240         do {
 241                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 242                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 243
 244                 if (rc != MBX_SUCCESS) {
 245                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 246                                         "0441 VPD not present on adapter, "
 247                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 248                                         mb->mbxCommand, mb->mbxStatus);
 249                         mb->un.varDmp.word_cnt = 0;
 250                 }
 251                 /* dump mem may return a zero when finished or we got a
 252                  * mailbox error, either way we are done.
 253                  */
 254                 if (mb->un.varDmp.word_cnt == 0)
 255                         break;
 256
 257                 i =  mb->un.varDmp.word_cnt * sizeof(uint32_t);
 258                 if (offset + i >  DMP_VPD_SIZE)
 259                         i =  DMP_VPD_SIZE - offset;
 260                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 261                                       lpfc_vpd_data  + offset, i);
 262                 offset += i;
 263         } while (offset < DMP_VPD_SIZE);
 264
 265         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 266
 267         kfree(lpfc_vpd_data);
 268 out_free_mbox:
 269         mempool_free(pmb, phba->mbox_mem_pool);
 270         return 0;
 271 }
 272
 273 /**
 274  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 275  * @phba: pointer to lpfc hba data structure.
 276  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 277  *
 278  * This is the completion handler for driver's configuring asynchronous event
 279  * mailbox command to the device. If the mailbox command returns successfully,
 280  * it will set internal async event support flag to 1; otherwise, it will
 281  * set internal async event support flag to 0.
 282  **/
 283 static void
 284 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 285 {
 286         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 287                 phba->temp_sensor_support = 1;
 288         else
 289                 phba->temp_sensor_support = 0;
 290         mempool_free(pmboxq, phba->mbox_mem_pool);
 291         return;
 292 }
 293
 294 /**
 295  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 296  * @phba: pointer to lpfc hba data structure.
 297  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 298  *
 299  * This is the completion handler for dump mailbox command for getting
 300  * wake up parameters. When this command complete, the response contain
 301  * Option rom version of the HBA. This function translate the version number
 302  * into a human readable string and store it in OptionROMVersion.
 303  **/
 304 static void
 305 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 306 {
 307         struct prog_id *prg;
 308         uint32_t prog_id_word;
 309         char dist = ' ';
 310         /* character array used for decoding dist type. */
 311         char dist_char[] = "nabx";
 312
 313         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 314                 mempool_free(pmboxq, phba->mbox_mem_pool);
 315                 return;
 316         }
 317
 318         prg = (struct prog_id *) &prog_id_word;
 319
 320         /* word 7 contain option rom version */
 321         prog_id_word = pmboxq->u.mb.un.varWords[7];
 322
 323         /* Decode the Option rom version word to a readable string */
 324         if (prg->dist < 4)
 325                 dist = dist_char[prg->dist];
 326
 327         if ((prg->dist == 3) && (prg->num == 0))
 328                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 329                         prg->ver, prg->rev, prg->lev);
 330         else
 331                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 332                         prg->ver, prg->rev, prg->lev,
 333                         dist, prg->num);
 334         mempool_free(pmboxq, phba->mbox_mem_pool);
 335         return;
 336 }
 337
 338 /**
 339  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 340  *      cfg_soft_wwnn, cfg_soft_wwpn
 341  * @vport: pointer to lpfc vport data structure.
 342  *
 343  *
 344  * Return codes
 345  *   None.
 346  **/
 347 void
 348 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 349 {
 350         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 351         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 352
 353         /* If the soft name exists then update it using the service params */
 354         if (vport->phba->cfg_soft_wwnn)
 355                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 356                            vport->fc_sparam.nodeName.u.wwn);
 357         if (vport->phba->cfg_soft_wwpn)
 358                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 359                            vport->fc_sparam.portName.u.wwn);
 360
 361         /*
 362          * If the name is empty or there exists a soft name
 363          * then copy the service params name, otherwise use the fc name
 364          */
 365         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 366                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 367                         sizeof(struct lpfc_name));
 368         else
 369                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 370                         sizeof(struct lpfc_name));
 371
 372         /*
 373          * If the port name has changed, then set the Param changes flag
 374          * to unreg the login
 375          */
 376         if (vport->fc_portname.u.wwn[0] != 0 &&
 377                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 378                         sizeof(struct lpfc_name)))
 379                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 380
 381         if (vport->fc_portname.u.wwn[0] == 0 ||
 382             vport->phba->cfg_soft_wwpn ||
 383             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 384             vport->vport_flag & FAWWPN_SET) {
 385                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 386                         sizeof(struct lpfc_name));
 387                 vport->vport_flag &= ~FAWWPN_SET;
 388                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 389                         vport->vport_flag |= FAWWPN_SET;
 390         }
 391         else
 392                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 393                         sizeof(struct lpfc_name));
 394 }
 395
 396 /**
 397  * lpfc_config_port_post - Perform lpfc initialization after config port
 398  * @phba: pointer to lpfc hba data structure.
 399  *
 400  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 401  * command call. It performs all internal resource and state setups on the
 402  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 403  * ELS ring timers, etc.
 404  *
 405  * Return codes
 406  *   0 - success.
 407  *   Any other value - error.
 408  **/
 409 int
 410 lpfc_config_port_post(struct lpfc_hba *phba)
 411 {
 412         struct lpfc_vport *vport = phba->pport;
 413         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 414         LPFC_MBOXQ_t *pmb;
 415         MAILBOX_t *mb;
 416         struct lpfc_dmabuf *mp;
 417         struct lpfc_sli *psli = &phba->sli;
 418         uint32_t status, timeout;
 419         int i, j;
 420         int rc;
 421
 422         spin_lock_irq(&phba->hbalock);
 423         /*
 424          * If the Config port completed correctly the HBA is not
 425          * over heated any more.
 426          */
 427         if (phba->over_temp_state == HBA_OVER_TEMP)
 428                 phba->over_temp_state = HBA_NORMAL_TEMP;
 429         spin_unlock_irq(&phba->hbalock);
 430
 431         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 432         if (!pmb) {
 433                 phba->link_state = LPFC_HBA_ERROR;
 434                 return -ENOMEM;
 435         }
 436         mb = &pmb->u.mb;
 437
 438         /* Get login parameters for NID.  */
 439         rc = lpfc_read_sparam(phba, pmb, 0);
 440         if (rc) {
 441                 mempool_free(pmb, phba->mbox_mem_pool);
 442                 return -ENOMEM;
 443         }
 444
 445         pmb->vport = vport;
 446         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 447                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 448                                 "0448 Adapter failed init, mbxCmd x%x "
 449                                 "READ_SPARM mbxStatus x%x\n",
 450                                 mb->mbxCommand, mb->mbxStatus);
 451                 phba->link_state = LPFC_HBA_ERROR;
 452                 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 453                 mempool_free(pmb, phba->mbox_mem_pool);
 454                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 455                 kfree(mp);
 456                 return -EIO;
 457         }
 458
 459         mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 460
 461         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 462         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 463         kfree(mp);
 464         pmb->ctx_buf = NULL;
 465         lpfc_update_vport_wwn(vport);
 466
 467         /* Update the fc_host data structures with new wwn. */
 468         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 469         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 470         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 471
 472         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 473         /* This should be consolidated into parse_vpd ? - mr */
 474         if (phba->SerialNumber[0] == 0) {
 475                 uint8_t *outptr;
 476
 477                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 478                 for (i = 0; i < 12; i++) {
 479                         status = *outptr++;
 480                         j = ((status & 0xf0) >> 4);
 481                         if (j <= 9)
 482                                 phba->SerialNumber[i] =
 483                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 484                         else
 485                                 phba->SerialNumber[i] =
 486                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 487                         i++;
 488                         j = (status & 0xf);
 489                         if (j <= 9)
 490                                 phba->SerialNumber[i] =
 491                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 492                         else
 493                                 phba->SerialNumber[i] =
 494                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 495                 }
 496         }
 497
 498         lpfc_read_config(phba, pmb);
 499         pmb->vport = vport;
 500         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 501                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 502                                 "0453 Adapter failed to init, mbxCmd x%x "
 503                                 "READ_CONFIG, mbxStatus x%x\n",
 504                                 mb->mbxCommand, mb->mbxStatus);
 505                 phba->link_state = LPFC_HBA_ERROR;
 506                 mempool_free( pmb, phba->mbox_mem_pool);
 507                 return -EIO;
 508         }
 509
 510         /* Check if the port is disabled */
 511         lpfc_sli_read_link_ste(phba);
 512
 513         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 514         if (phba->cfg_hba_queue_depth > mb->un.varRdConfig.max_xri) {
 515                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 516                                 "3359 HBA queue depth changed from %d to %d\n",
 517                                 phba->cfg_hba_queue_depth,
 518                                 mb->un.varRdConfig.max_xri);
 519                 phba->cfg_hba_queue_depth = mb->un.varRdConfig.max_xri;
 520         }
 521
 522         phba->lmt = mb->un.varRdConfig.lmt;
 523
 524         /* Get the default values for Model Name and Description */
 525         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 526
 527         phba->link_state = LPFC_LINK_DOWN;
 528
 529         /* Only process IOCBs on ELS ring till hba_state is READY */
 530         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 531                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 532         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 533                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 534
 535         /* Post receive buffers for desired rings */
 536         if (phba->sli_rev != 3)
 537                 lpfc_post_rcv_buf(phba);
 538
 539         /*
 540          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 541          */
 542         if (phba->intr_type == MSIX) {
 543                 rc = lpfc_config_msi(phba, pmb);
 544                 if (rc) {
 545                         mempool_free(pmb, phba->mbox_mem_pool);
 546                         return -EIO;
 547                 }
 548                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 549                 if (rc != MBX_SUCCESS) {
 550                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 551                                         "0352 Config MSI mailbox command "
 552                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 553                                         pmb->u.mb.mbxCommand,
 554                                         pmb->u.mb.mbxStatus);
 555                         mempool_free(pmb, phba->mbox_mem_pool);
 556                         return -EIO;
 557                 }
 558         }
 559
 560         spin_lock_irq(&phba->hbalock);
 561         /* Initialize ERATT handling flag */
 562         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 563
 564         /* Enable appropriate host interrupts */
 565         if (lpfc_readl(phba->HCregaddr, &status)) {
 566                 spin_unlock_irq(&phba->hbalock);
 567                 return -EIO;
 568         }
 569         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 570         if (psli->num_rings > 0)
 571                 status |= HC_R0INT_ENA;
 572         if (psli->num_rings > 1)
 573                 status |= HC_R1INT_ENA;
 574         if (psli->num_rings > 2)
 575                 status |= HC_R2INT_ENA;
 576         if (psli->num_rings > 3)
 577                 status |= HC_R3INT_ENA;
 578
 579         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 580             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 581                 status &= ~(HC_R0INT_ENA);
 582
 583         writel(status, phba->HCregaddr);
 584         readl(phba->HCregaddr); /* flush */
 585         spin_unlock_irq(&phba->hbalock);
 586
 587         /* Set up ring-0 (ELS) timer */
 588         timeout = phba->fc_ratov * 2;
 589         mod_timer(&vport->els_tmofunc,
 590                   jiffies + msecs_to_jiffies(1000 * timeout));
 591         /* Set up heart beat (HB) timer */
 592         mod_timer(&phba->hb_tmofunc,
 593                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 594         phba->hb_outstanding = 0;
 595         phba->last_completion_time = jiffies;
 596         /* Set up error attention (ERATT) polling timer */
 597         mod_timer(&phba->eratt_poll,
 598                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 599
 600         if (phba->hba_flag & LINK_DISABLED) {
 601                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 602                                 "2598 Adapter Link is disabled.\n");
 603                 lpfc_down_link(phba, pmb);
 604                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 605                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 606                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 607                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 608                                         "2599 Adapter failed to issue DOWN_LINK"
 609                                         " mbox command rc 0x%x\n", rc);
 610
 611                         mempool_free(pmb, phba->mbox_mem_pool);
 612                         return -EIO;
 613                 }
 614         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 615                 mempool_free(pmb, phba->mbox_mem_pool);
 616                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 617                 if (rc)
 618                         return rc;
 619         }
 620         /* MBOX buffer will be freed in mbox compl */
 621         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 622         if (!pmb) {
 623                 phba->link_state = LPFC_HBA_ERROR;
 624                 return -ENOMEM;
 625         }
 626
 627         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 628         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 629         pmb->vport = phba->pport;
 630         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 631
 632         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 633                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 634                                 "0456 Adapter failed to issue "
 635                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 636                                 rc);
 637                 mempool_free(pmb, phba->mbox_mem_pool);
 638         }
 639
 640         /* Get Option rom version */
 641         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 642         if (!pmb) {
 643                 phba->link_state = LPFC_HBA_ERROR;
 644                 return -ENOMEM;
 645         }
 646
 647         lpfc_dump_wakeup_param(phba, pmb);
 648         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 649         pmb->vport = phba->pport;
 650         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 651
 652         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 653                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 654                                 "0435 Adapter failed "
 655                                 "to get Option ROM version status x%x\n", rc);
 656                 mempool_free(pmb, phba->mbox_mem_pool);
 657         }
 658
 659         return 0;
 660 }
 661
 662 /**
 663  * lpfc_hba_init_link - Initialize the FC link
 664  * @phba: pointer to lpfc hba data structure.
 665  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 666  *
 667  * This routine will issue the INIT_LINK mailbox command call.
 668  * It is available to other drivers through the lpfc_hba data
 669  * structure for use as a delayed link up mechanism with the
 670  * module parameter lpfc_suppress_link_up.
 671  *
 672  * Return code
 673  *              0 - success
 674  *              Any other value - error
 675  **/
 676 static int
 677 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 678 {
 679         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 680 }
 681
 682 /**
 683  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 684  * @phba: pointer to lpfc hba data structure.
 685  * @fc_topology: desired fc topology.
 686  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 687  *
 688  * This routine will issue the INIT_LINK mailbox command call.
 689  * It is available to other drivers through the lpfc_hba data
 690  * structure for use as a delayed link up mechanism with the
 691  * module parameter lpfc_suppress_link_up.
 692  *
 693  * Return code
 694  *              0 - success
 695  *              Any other value - error
 696  **/
 697 int
 698 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 699                                uint32_t flag)
 700 {
 701         struct lpfc_vport *vport = phba->pport;
 702         LPFC_MBOXQ_t *pmb;
 703         MAILBOX_t *mb;
 704         int rc;
 705
 706         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 707         if (!pmb) {
 708                 phba->link_state = LPFC_HBA_ERROR;
 709                 return -ENOMEM;
 710         }
 711         mb = &pmb->u.mb;
 712         pmb->vport = vport;
 713
 714         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 715             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 716              !(phba->lmt & LMT_1Gb)) ||
 717             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 718              !(phba->lmt & LMT_2Gb)) ||
 719             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 720              !(phba->lmt & LMT_4Gb)) ||
 721             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 722              !(phba->lmt & LMT_8Gb)) ||
 723             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 724              !(phba->lmt & LMT_10Gb)) ||
 725             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 726              !(phba->lmt & LMT_16Gb)) ||
 727             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 728              !(phba->lmt & LMT_32Gb)) ||
 729             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 730              !(phba->lmt & LMT_64Gb))) {
 731                 /* Reset link speed to auto */
 732                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 733                                 "1302 Invalid speed for this board:%d "
 734                                 "Reset link speed to auto.\n",
 735                                 phba->cfg_link_speed);
 736                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 737         }
 738         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 739         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 740         if (phba->sli_rev < LPFC_SLI_REV4)
 741                 lpfc_set_loopback_flag(phba);
 742         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 743         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 744                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 745                                 "0498 Adapter failed to init, mbxCmd x%x "
 746                                 "INIT_LINK, mbxStatus x%x\n",
 747                                 mb->mbxCommand, mb->mbxStatus);
 748                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 749                         /* Clear all interrupt enable conditions */
 750                         writel(0, phba->HCregaddr);
 751                         readl(phba->HCregaddr); /* flush */
 752                         /* Clear all pending interrupts */
 753                         writel(0xffffffff, phba->HAregaddr);
 754                         readl(phba->HAregaddr); /* flush */
 755                 }
 756                 phba->link_state = LPFC_HBA_ERROR;
 757                 if (rc != MBX_BUSY || flag == MBX_POLL)
 758                         mempool_free(pmb, phba->mbox_mem_pool);
 759                 return -EIO;
 760         }
 761         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 762         if (flag == MBX_POLL)
 763                 mempool_free(pmb, phba->mbox_mem_pool);
 764
 765         return 0;
 766 }
 767
 768 /**
 769  * lpfc_hba_down_link - this routine downs the FC link
 770  * @phba: pointer to lpfc hba data structure.
 771  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 772  *
 773  * This routine will issue the DOWN_LINK mailbox command call.
 774  * It is available to other drivers through the lpfc_hba data
 775  * structure for use to stop the link.
 776  *
 777  * Return code
 778  *              0 - success
 779  *              Any other value - error
 780  **/
 781 static int
 782 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 783 {
 784         LPFC_MBOXQ_t *pmb;
 785         int rc;
 786
 787         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 788         if (!pmb) {
 789                 phba->link_state = LPFC_HBA_ERROR;
 790                 return -ENOMEM;
 791         }
 792
 793         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 794                         "0491 Adapter Link is disabled.\n");
 795         lpfc_down_link(phba, pmb);
 796         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 797         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 798         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 799                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 800                                 "2522 Adapter failed to issue DOWN_LINK"
 801                                 " mbox command rc 0x%x\n", rc);
 802
 803                 mempool_free(pmb, phba->mbox_mem_pool);
 804                 return -EIO;
 805         }
 806         if (flag == MBX_POLL)
 807                 mempool_free(pmb, phba->mbox_mem_pool);
 808
 809         return 0;
 810 }
 811
 812 /**
 813  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 814  * @phba: pointer to lpfc HBA data structure.
 815  *
 816  * This routine will do LPFC uninitialization before the HBA is reset when
 817  * bringing down the SLI Layer.
 818  *
 819  * Return codes
 820  *   0 - success.
 821  *   Any other value - error.
 822  **/
 823 int
 824 lpfc_hba_down_prep(struct lpfc_hba *phba)
 825 {
 826         struct lpfc_vport **vports;
 827         int i;
 828
 829         if (phba->sli_rev <= LPFC_SLI_REV3) {
 830                 /* Disable interrupts */
 831                 writel(0, phba->HCregaddr);
 832                 readl(phba->HCregaddr); /* flush */
 833         }
 834
 835         if (phba->pport->load_flag & FC_UNLOADING)
 836                 lpfc_cleanup_discovery_resources(phba->pport);
 837         else {
 838                 vports = lpfc_create_vport_work_array(phba);
 839                 if (vports != NULL)
 840                         for (i = 0; i <= phba->max_vports &&
 841                                 vports[i] != NULL; i++)
 842                                 lpfc_cleanup_discovery_resources(vports[i]);
 843                 lpfc_destroy_vport_work_array(phba, vports);
 844         }
 845         return 0;
 846 }
 847
 848 /**
 849  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 850  * rspiocb which got deferred
 851  *
 852  * @phba: pointer to lpfc HBA data structure.
 853  *
 854  * This routine will cleanup completed slow path events after HBA is reset
 855  * when bringing down the SLI Layer.
 856  *
 857  *
 858  * Return codes
 859  *   void.
 860  **/
 861 static void
 862 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 863 {
 864         struct lpfc_iocbq *rspiocbq;
 865         struct hbq_dmabuf *dmabuf;
 866         struct lpfc_cq_event *cq_event;
 867
 868         spin_lock_irq(&phba->hbalock);
 869         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 870         spin_unlock_irq(&phba->hbalock);
 871
 872         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 873                 /* Get the response iocb from the head of work queue */
 874                 spin_lock_irq(&phba->hbalock);
 875                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 876                                  cq_event, struct lpfc_cq_event, list);
 877                 spin_unlock_irq(&phba->hbalock);
 878
 879                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 880                 case CQE_CODE_COMPL_WQE:
 881                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 882                                                  cq_event);
 883                         lpfc_sli_release_iocbq(phba, rspiocbq);
 884                         break;
 885                 case CQE_CODE_RECEIVE:
 886                 case CQE_CODE_RECEIVE_V1:
 887                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 888                                               cq_event);
 889                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 890                 }
 891         }
 892 }
 893
 894 /**
 895  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 896  * @phba: pointer to lpfc HBA data structure.
 897  *
 898  * This routine will cleanup posted ELS buffers after the HBA is reset
 899  * when bringing down the SLI Layer.
 900  *
 901  *
 902  * Return codes
 903  *   void.
 904  **/
 905 static void
 906 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 907 {
 908         struct lpfc_sli *psli = &phba->sli;
 909         struct lpfc_sli_ring *pring;
 910         struct lpfc_dmabuf *mp, *next_mp;
 911         LIST_HEAD(buflist);
 912         int count;
 913
 914         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 915                 lpfc_sli_hbqbuf_free_all(phba);
 916         else {
 917                 /* Cleanup preposted buffers on the ELS ring */
 918                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 919                 spin_lock_irq(&phba->hbalock);
 920                 list_splice_init(&pring->postbufq, &buflist);
 921                 spin_unlock_irq(&phba->hbalock);
 922
 923                 count = 0;
 924                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 925                         list_del(&mp->list);
 926                         count++;
 927                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 928                         kfree(mp);
 929                 }
 930
 931                 spin_lock_irq(&phba->hbalock);
 932                 pring->postbufq_cnt -= count;
 933                 spin_unlock_irq(&phba->hbalock);
 934         }
 935 }
 936
 937 /**
 938  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 939  * @phba: pointer to lpfc HBA data structure.
 940  *
 941  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 942  * down the SLI Layer.
 943  *
 944  * Return codes
 945  *   void
 946  **/
 947 static void
 948 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 949 {
 950         struct lpfc_sli *psli = &phba->sli;
 951         struct lpfc_queue *qp = NULL;
 952         struct lpfc_sli_ring *pring;
 953         LIST_HEAD(completions);
 954         int i;
 955         struct lpfc_iocbq *piocb, *next_iocb;
 956
 957         if (phba->sli_rev != LPFC_SLI_REV4) {
 958                 for (i = 0; i < psli->num_rings; i++) {
 959                         pring = &psli->sli3_ring[i];
 960                         spin_lock_irq(&phba->hbalock);
 961                         /* At this point in time the HBA is either reset or DOA
 962                          * Nothing should be on txcmplq as it will
 963                          * NEVER complete.
 964                          */
 965                         list_splice_init(&pring->txcmplq, &completions);
 966                         pring->txcmplq_cnt = 0;
 967                         spin_unlock_irq(&phba->hbalock);
 968
 969                         lpfc_sli_abort_iocb_ring(phba, pring);
 970                 }
 971                 /* Cancel all the IOCBs from the completions list */
 972                 lpfc_sli_cancel_iocbs(phba, &completions,
 973                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 974                 return;
 975         }
 976         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 977                 pring = qp->pring;
 978                 if (!pring)
 979                         continue;
 980                 spin_lock_irq(&pring->ring_lock);
 981                 list_for_each_entry_safe(piocb, next_iocb,
 982                                          &pring->txcmplq, list)
 983                         piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
 984                 list_splice_init(&pring->txcmplq, &completions);
 985                 pring->txcmplq_cnt = 0;
 986                 spin_unlock_irq(&pring->ring_lock);
 987                 lpfc_sli_abort_iocb_ring(phba, pring);
 988         }
 989         /* Cancel all the IOCBs from the completions list */
 990         lpfc_sli_cancel_iocbs(phba, &completions,
 991                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 992 }
 993
 994 /**
 995  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 996  * @phba: pointer to lpfc HBA data structure.
 997  *
 998  * This routine will do uninitialization after the HBA is reset when bring
 999  * down the SLI Layer.
1000  *
1001  * Return codes
1002  *   0 - success.
1003  *   Any other value - error.
1004  **/
1005 static int
1006 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1007 {
1008         lpfc_hba_free_post_buf(phba);
1009         lpfc_hba_clean_txcmplq(phba);
1010         return 0;
1011 }
1012
1013 /**
1014  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1015  * @phba: pointer to lpfc HBA data structure.
1016  *
1017  * This routine will do uninitialization after the HBA is reset when bring
1018  * down the SLI Layer.
1019  *
1020  * Return codes
1021  *   0 - success.
1022  *   Any other value - error.
1023  **/
1024 static int
1025 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1026 {
1027         struct lpfc_io_buf *psb, *psb_next;
1028         struct lpfc_async_xchg_ctx *ctxp, *ctxp_next;
1029         struct lpfc_sli4_hdw_queue *qp;
1030         LIST_HEAD(aborts);
1031         LIST_HEAD(nvme_aborts);
1032         LIST_HEAD(nvmet_aborts);
1033         struct lpfc_sglq *sglq_entry = NULL;
1034         int cnt, idx;
1035
1036
1037         lpfc_sli_hbqbuf_free_all(phba);
1038         lpfc_hba_clean_txcmplq(phba);
1039
1040         /* At this point in time the HBA is either reset or DOA. Either
1041          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1042          * on the lpfc_els_sgl_list so that it can either be freed if the
1043          * driver is unloading or reposted if the driver is restarting
1044          * the port.
1045          */
1046         spin_lock_irq(&phba->hbalock);  /* required for lpfc_els_sgl_list and */
1047                                         /* scsl_buf_list */
1048         /* sgl_list_lock required because worker thread uses this
1049          * list.
1050          */
1051         spin_lock(&phba->sli4_hba.sgl_list_lock);
1052         list_for_each_entry(sglq_entry,
1053                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1054                 sglq_entry->state = SGL_FREED;
1055
1056         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1057                         &phba->sli4_hba.lpfc_els_sgl_list);
1058
1059
1060         spin_unlock(&phba->sli4_hba.sgl_list_lock);
1061
1062         /* abts_xxxx_buf_list_lock required because worker thread uses this
1063          * list.
1064          */
1065         cnt = 0;
1066         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1067                 qp = &phba->sli4_hba.hdwq[idx];
1068
1069                 spin_lock(&qp->abts_io_buf_list_lock);
1070                 list_splice_init(&qp->lpfc_abts_io_buf_list,
1071                                  &aborts);
1072
1073                 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1074                         psb->pCmd = NULL;
1075                         psb->status = IOSTAT_SUCCESS;
1076                         cnt++;
1077                 }
1078                 spin_lock(&qp->io_buf_list_put_lock);
1079                 list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
1080                 qp->put_io_bufs += qp->abts_scsi_io_bufs;
1081                 qp->put_io_bufs += qp->abts_nvme_io_bufs;
1082                 qp->abts_scsi_io_bufs = 0;
1083                 qp->abts_nvme_io_bufs = 0;
1084                 spin_unlock(&qp->io_buf_list_put_lock);
1085                 spin_unlock(&qp->abts_io_buf_list_lock);
1086         }
1087         spin_unlock_irq(&phba->hbalock);
1088
1089         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1090                 spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1091                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1092                                  &nvmet_aborts);
1093                 spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1094                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1095                         ctxp->flag &= ~(LPFC_NVME_XBUSY | LPFC_NVME_ABORT_OP);
1096                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1097                 }
1098         }
1099
1100         lpfc_sli4_free_sp_events(phba);
1101         return cnt;
1102 }
1103
1104 /**
1105  * lpfc_hba_down_post - Wrapper func for hba down post routine
1106  * @phba: pointer to lpfc HBA data structure.
1107  *
1108  * This routine wraps the actual SLI3 or SLI4 routine for performing
1109  * uninitialization after the HBA is reset when bring down the SLI Layer.
1110  *
1111  * Return codes
1112  *   0 - success.
1113  *   Any other value - error.
1114  **/
1115 int
1116 lpfc_hba_down_post(struct lpfc_hba *phba)
1117 {
1118         return (*phba->lpfc_hba_down_post)(phba);
1119 }
1120
1121 /**
1122  * lpfc_hb_timeout - The HBA-timer timeout handler
1123  * @t: timer context used to obtain the pointer to lpfc hba data structure.
1124  *
1125  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1126  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1127  * work-port-events bitmap and the worker thread is notified. This timeout
1128  * event will be used by the worker thread to invoke the actual timeout
1129  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1130  * be performed in the timeout handler and the HBA timeout event bit shall
1131  * be cleared by the worker thread after it has taken the event bitmap out.
1132  **/
1133 static void
1134 lpfc_hb_timeout(struct timer_list *t)
1135 {
1136         struct lpfc_hba *phba;
1137         uint32_t tmo_posted;
1138         unsigned long iflag;
1139
1140         phba = from_timer(phba, t, hb_tmofunc);
1141
1142         /* Check for heart beat timeout conditions */
1143         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1144         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1145         if (!tmo_posted)
1146                 phba->pport->work_port_events |= WORKER_HB_TMO;
1147         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1148
1149         /* Tell the worker thread there is work to do */
1150         if (!tmo_posted)
1151                 lpfc_worker_wake_up(phba);
1152         return;
1153 }
1154
1155 /**
1156  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1157  * @t: timer context used to obtain the pointer to lpfc hba data structure.
1158  *
1159  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1160  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1161  * work-port-events bitmap and the worker thread is notified. This timeout
1162  * event will be used by the worker thread to invoke the actual timeout
1163  * handler routine, lpfc_rrq_handler. Any periodical operations will
1164  * be performed in the timeout handler and the RRQ timeout event bit shall
1165  * be cleared by the worker thread after it has taken the event bitmap out.
1166  **/
1167 static void
1168 lpfc_rrq_timeout(struct timer_list *t)
1169 {
1170         struct lpfc_hba *phba;
1171         unsigned long iflag;
1172
1173         phba = from_timer(phba, t, rrq_tmr);
1174         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1175         if (!(phba->pport->load_flag & FC_UNLOADING))
1176                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1177         else
1178                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1179         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1180
1181         if (!(phba->pport->load_flag & FC_UNLOADING))
1182                 lpfc_worker_wake_up(phba);
1183 }
1184
1185 /**
1186  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1187  * @phba: pointer to lpfc hba data structure.
1188  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1189  *
1190  * This is the callback function to the lpfc heart-beat mailbox command.
1191  * If configured, the lpfc driver issues the heart-beat mailbox command to
1192  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1193  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1194  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1195  * heart-beat outstanding state. Once the mailbox command comes back and
1196  * no error conditions detected, the heart-beat mailbox command timer is
1197  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1198  * state is cleared for the next heart-beat. If the timer expired with the
1199  * heart-beat outstanding state set, the driver will put the HBA offline.
1200  **/
1201 static void
1202 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1203 {
1204         unsigned long drvr_flag;
1205
1206         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1207         phba->hb_outstanding = 0;
1208         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1209
1210         /* Check and reset heart-beat timer is necessary */
1211         mempool_free(pmboxq, phba->mbox_mem_pool);
1212         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1213                 !(phba->link_state == LPFC_HBA_ERROR) &&
1214                 !(phba->pport->load_flag & FC_UNLOADING))
1215                 mod_timer(&phba->hb_tmofunc,
1216                           jiffies +
1217                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1218         return;
1219 }
1220
1221 /*
1222  * lpfc_idle_stat_delay_work - idle_stat tracking
1223  *
1224  * This routine tracks per-cq idle_stat and determines polling decisions.
1225  *
1226  * Return codes:
1227  *   None
1228  **/
1229 static void
1230 lpfc_idle_stat_delay_work(struct work_struct *work)
1231 {
1232         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1233                                              struct lpfc_hba,
1234                                              idle_stat_delay_work);
1235         struct lpfc_queue *cq;
1236         struct lpfc_sli4_hdw_queue *hdwq;
1237         struct lpfc_idle_stat *idle_stat;
1238         u32 i, idle_percent;
1239         u64 wall, wall_idle, diff_wall, diff_idle, busy_time;
1240
1241         if (phba->pport->load_flag & FC_UNLOADING)
1242                 return;
1243
1244         if (phba->link_state == LPFC_HBA_ERROR ||
1245             phba->pport->fc_flag & FC_OFFLINE_MODE)
1246                 goto requeue;
1247
1248         for_each_present_cpu(i) {
1249                 hdwq = &phba->sli4_hba.hdwq[phba->sli4_hba.cpu_map[i].hdwq];
1250                 cq = hdwq->io_cq;
1251
1252                 /* Skip if we've already handled this cq's primary CPU */
1253                 if (cq->chann != i)
1254                         continue;
1255
1256                 idle_stat = &phba->sli4_hba.idle_stat[i];
1257
1258                 /* get_cpu_idle_time returns values as running counters. Thus,
1259                  * to know the amount for this period, the prior counter values
1260                  * need to be subtracted from the current counter values.
1261                  * From there, the idle time stat can be calculated as a
1262                  * percentage of 100 - the sum of the other consumption times.
1263                  */
1264                 wall_idle = get_cpu_idle_time(i, &wall, 1);
1265                 diff_idle = wall_idle - idle_stat->prev_idle;
1266                 diff_wall = wall - idle_stat->prev_wall;
1267
1268                 if (diff_wall <= diff_idle)
1269                         busy_time = 0;
1270                 else
1271                         busy_time = diff_wall - diff_idle;
1272
1273                 idle_percent = div64_u64(100 * busy_time, diff_wall);
1274                 idle_percent = 100 - idle_percent;
1275
1276                 if (idle_percent < 15)
1277                         cq->poll_mode = LPFC_QUEUE_WORK;
1278                 else
1279                         cq->poll_mode = LPFC_IRQ_POLL;
1280
1281                 idle_stat->prev_idle = wall_idle;
1282                 idle_stat->prev_wall = wall;
1283         }
1284
1285 requeue:
1286         schedule_delayed_work(&phba->idle_stat_delay_work,
1287                               msecs_to_jiffies(LPFC_IDLE_STAT_DELAY));
1288 }
1289
1290 static void
1291 lpfc_hb_eq_delay_work(struct work_struct *work)
1292 {
1293         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1294                                              struct lpfc_hba, eq_delay_work);
1295         struct lpfc_eq_intr_info *eqi, *eqi_new;
1296         struct lpfc_queue *eq, *eq_next;
1297         unsigned char *ena_delay = NULL;
1298         uint32_t usdelay;
1299         int i;
1300
1301         if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
1302                 return;
1303
1304         if (phba->link_state == LPFC_HBA_ERROR ||
1305             phba->pport->fc_flag & FC_OFFLINE_MODE)
1306                 goto requeue;
1307
1308         ena_delay = kcalloc(phba->sli4_hba.num_possible_cpu, sizeof(*ena_delay),
1309                             GFP_KERNEL);
1310         if (!ena_delay)
1311                 goto requeue;
1312
1313         for (i = 0; i < phba->cfg_irq_chann; i++) {
1314                 /* Get the EQ corresponding to the IRQ vector */
1315                 eq = phba->sli4_hba.hba_eq_hdl[i].eq;
1316                 if (!eq)
1317                         continue;
1318                 if (eq->q_mode || eq->q_flag & HBA_EQ_DELAY_CHK) {
1319                         eq->q_flag &= ~HBA_EQ_DELAY_CHK;
1320                         ena_delay[eq->last_cpu] = 1;
1321                 }
1322         }
1323
1324         for_each_present_cpu(i) {
1325                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1326                 if (ena_delay[i]) {
1327                         usdelay = (eqi->icnt >> 10) * LPFC_EQ_DELAY_STEP;
1328                         if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1329                                 usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1330                 } else {
1331                         usdelay = 0;
1332                 }
1333
1334                 eqi->icnt = 0;
1335
1336                 list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1337                         if (unlikely(eq->last_cpu != i)) {
1338                                 eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1339                                                       eq->last_cpu);
1340                                 list_move_tail(&eq->cpu_list, &eqi_new->list);
1341                                 continue;
1342                         }
1343                         if (usdelay != eq->q_mode)
1344                                 lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
1345                                                          usdelay);
1346                 }
1347         }
1348
1349         kfree(ena_delay);
1350
1351 requeue:
1352         queue_delayed_work(phba->wq, &phba->eq_delay_work,
1353                            msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1354 }
1355
1356 /**
1357  * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1358  * @phba: pointer to lpfc hba data structure.
1359  *
1360  * For each heartbeat, this routine does some heuristic methods to adjust
1361  * XRI distribution. The goal is to fully utilize free XRIs.
1362  **/
1363 static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1364 {
1365         u32 i;
1366         u32 hwq_count;
1367
1368         hwq_count = phba->cfg_hdw_queue;
1369         for (i = 0; i < hwq_count; i++) {
1370                 /* Adjust XRIs in private pool */
1371                 lpfc_adjust_pvt_pool_count(phba, i);
1372
1373                 /* Adjust high watermark */
1374                 lpfc_adjust_high_watermark(phba, i);
1375
1376 #ifdef LPFC_MXP_STAT
1377                 /* Snapshot pbl, pvt and busy count */
1378                 lpfc_snapshot_mxp(phba, i);
1379 #endif
1380         }
1381 }
1382
1383 /**
1384  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1385  * @phba: pointer to lpfc hba data structure.
1386  *
1387  * This is the actual HBA-timer timeout handler to be invoked by the worker
1388  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1389  * handler performs any periodic operations needed for the device. If such
1390  * periodic event has already been attended to either in the interrupt handler
1391  * or by processing slow-ring or fast-ring events within the HBA-timer
1392  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1393  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1394  * is configured and there is no heart-beat mailbox command outstanding, a
1395  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1396  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1397  * to offline.
1398  **/
1399 void
1400 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1401 {
1402         struct lpfc_vport **vports;
1403         LPFC_MBOXQ_t *pmboxq;
1404         struct lpfc_dmabuf *buf_ptr;
1405         int retval, i;
1406         struct lpfc_sli *psli = &phba->sli;
1407         LIST_HEAD(completions);
1408
1409         if (phba->cfg_xri_rebalancing) {
1410                 /* Multi-XRI pools handler */
1411                 lpfc_hb_mxp_handler(phba);
1412         }
1413
1414         vports = lpfc_create_vport_work_array(phba);
1415         if (vports != NULL)
1416                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1417                         lpfc_rcv_seq_check_edtov(vports[i]);
1418                         lpfc_fdmi_change_check(vports[i]);
1419                 }
1420         lpfc_destroy_vport_work_array(phba, vports);
1421
1422         if ((phba->link_state == LPFC_HBA_ERROR) ||
1423                 (phba->pport->load_flag & FC_UNLOADING) ||
1424                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1425                 return;
1426
1427         spin_lock_irq(&phba->pport->work_port_lock);
1428
1429         if (time_after(phba->last_completion_time +
1430                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1431                         jiffies)) {
1432                 spin_unlock_irq(&phba->pport->work_port_lock);
1433                 if (!phba->hb_outstanding)
1434                         mod_timer(&phba->hb_tmofunc,
1435                                 jiffies +
1436                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1437                 else
1438                         mod_timer(&phba->hb_tmofunc,
1439                                 jiffies +
1440                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1441                 return;
1442         }
1443         spin_unlock_irq(&phba->pport->work_port_lock);
1444
1445         if (phba->elsbuf_cnt &&
1446                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1447                 spin_lock_irq(&phba->hbalock);
1448                 list_splice_init(&phba->elsbuf, &completions);
1449                 phba->elsbuf_cnt = 0;
1450                 phba->elsbuf_prev_cnt = 0;
1451                 spin_unlock_irq(&phba->hbalock);
1452
1453                 while (!list_empty(&completions)) {
1454                         list_remove_head(&completions, buf_ptr,
1455                                 struct lpfc_dmabuf, list);
1456                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1457                         kfree(buf_ptr);
1458                 }
1459         }
1460         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1461
1462         /* If there is no heart beat outstanding, issue a heartbeat command */
1463         if (phba->cfg_enable_hba_heartbeat) {
1464                 if (!phba->hb_outstanding) {
1465                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1466                                 (list_empty(&psli->mboxq))) {
1467                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1468                                                         GFP_KERNEL);
1469                                 if (!pmboxq) {
1470                                         mod_timer(&phba->hb_tmofunc,
1471                                                  jiffies +
1472                                                  msecs_to_jiffies(1000 *
1473                                                  LPFC_HB_MBOX_INTERVAL));
1474                                         return;
1475                                 }
1476
1477                                 lpfc_heart_beat(phba, pmboxq);
1478                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1479                                 pmboxq->vport = phba->pport;
1480                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1481                                                 MBX_NOWAIT);
1482
1483                                 if (retval != MBX_BUSY &&
1484                                         retval != MBX_SUCCESS) {
1485                                         mempool_free(pmboxq,
1486                                                         phba->mbox_mem_pool);
1487                                         mod_timer(&phba->hb_tmofunc,
1488                                                 jiffies +
1489                                                 msecs_to_jiffies(1000 *
1490                                                 LPFC_HB_MBOX_INTERVAL));
1491                                         return;
1492                                 }
1493                                 phba->skipped_hb = 0;
1494                                 phba->hb_outstanding = 1;
1495                         } else if (time_before_eq(phba->last_completion_time,
1496                                         phba->skipped_hb)) {
1497                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1498                                         "2857 Last completion time not "
1499                                         " updated in %d ms\n",
1500                                         jiffies_to_msecs(jiffies
1501                                                  - phba->last_completion_time));
1502                         } else
1503                                 phba->skipped_hb = jiffies;
1504
1505                         mod_timer(&phba->hb_tmofunc,
1506                                  jiffies +
1507                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1508                         return;
1509                 } else {
1510                         /*
1511                         * If heart beat timeout called with hb_outstanding set
1512                         * we need to give the hb mailbox cmd a chance to
1513                         * complete or TMO.
1514                         */
1515                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1516                                         "0459 Adapter heartbeat still out"
1517                                         "standing:last compl time was %d ms.\n",
1518                                         jiffies_to_msecs(jiffies
1519                                                  - phba->last_completion_time));
1520                         mod_timer(&phba->hb_tmofunc,
1521                                 jiffies +
1522                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1523                 }
1524         } else {
1525                         mod_timer(&phba->hb_tmofunc,
1526                                 jiffies +
1527                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1528         }
1529 }
1530
1531 /**
1532  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1533  * @phba: pointer to lpfc hba data structure.
1534  *
1535  * This routine is called to bring the HBA offline when HBA hardware error
1536  * other than Port Error 6 has been detected.
1537  **/
1538 static void
1539 lpfc_offline_eratt(struct lpfc_hba *phba)
1540 {
1541         struct lpfc_sli   *psli = &phba->sli;
1542
1543         spin_lock_irq(&phba->hbalock);
1544         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1545         spin_unlock_irq(&phba->hbalock);
1546         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1547
1548         lpfc_offline(phba);
1549         lpfc_reset_barrier(phba);
1550         spin_lock_irq(&phba->hbalock);
1551         lpfc_sli_brdreset(phba);
1552         spin_unlock_irq(&phba->hbalock);
1553         lpfc_hba_down_post(phba);
1554         lpfc_sli_brdready(phba, HS_MBRDY);
1555         lpfc_unblock_mgmt_io(phba);
1556         phba->link_state = LPFC_HBA_ERROR;
1557         return;
1558 }
1559
1560 /**
1561  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1562  * @phba: pointer to lpfc hba data structure.
1563  *
1564  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1565  * other than Port Error 6 has been detected.
1566  **/
1567 void
1568 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1569 {
1570         spin_lock_irq(&phba->hbalock);
1571         phba->link_state = LPFC_HBA_ERROR;
1572         spin_unlock_irq(&phba->hbalock);
1573
1574         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1575         lpfc_sli_flush_io_rings(phba);
1576         lpfc_offline(phba);
1577         lpfc_hba_down_post(phba);
1578         lpfc_unblock_mgmt_io(phba);
1579 }
1580
1581 /**
1582  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1583  * @phba: pointer to lpfc hba data structure.
1584  *
1585  * This routine is invoked to handle the deferred HBA hardware error
1586  * conditions. This type of error is indicated by HBA by setting ER1
1587  * and another ER bit in the host status register. The driver will
1588  * wait until the ER1 bit clears before handling the error condition.
1589  **/
1590 static void
1591 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1592 {
1593         uint32_t old_host_status = phba->work_hs;
1594         struct lpfc_sli *psli = &phba->sli;
1595
1596         /* If the pci channel is offline, ignore possible errors,
1597          * since we cannot communicate with the pci card anyway.
1598          */
1599         if (pci_channel_offline(phba->pcidev)) {
1600                 spin_lock_irq(&phba->hbalock);
1601                 phba->hba_flag &= ~DEFER_ERATT;
1602                 spin_unlock_irq(&phba->hbalock);
1603                 return;
1604         }
1605
1606         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1607                         "0479 Deferred Adapter Hardware Error "
1608                         "Data: x%x x%x x%x\n",
1609                         phba->work_hs, phba->work_status[0],
1610                         phba->work_status[1]);
1611
1612         spin_lock_irq(&phba->hbalock);
1613         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1614         spin_unlock_irq(&phba->hbalock);
1615
1616
1617         /*
1618          * Firmware stops when it triggred erratt. That could cause the I/Os
1619          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1620          * SCSI layer retry it after re-establishing link.
1621          */
1622         lpfc_sli_abort_fcp_rings(phba);
1623
1624         /*
1625          * There was a firmware error. Take the hba offline and then
1626          * attempt to restart it.
1627          */
1628         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1629         lpfc_offline(phba);
1630
1631         /* Wait for the ER1 bit to clear.*/
1632         while (phba->work_hs & HS_FFER1) {
1633                 msleep(100);
1634                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1635                         phba->work_hs = UNPLUG_ERR ;
1636                         break;
1637                 }
1638                 /* If driver is unloading let the worker thread continue */
1639                 if (phba->pport->load_flag & FC_UNLOADING) {
1640                         phba->work_hs = 0;
1641                         break;
1642                 }
1643         }
1644
1645         /*
1646          * This is to ptrotect against a race condition in which
1647          * first write to the host attention register clear the
1648          * host status register.
1649          */
1650         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1651                 phba->work_hs = old_host_status & ~HS_FFER1;
1652
1653         spin_lock_irq(&phba->hbalock);
1654         phba->hba_flag &= ~DEFER_ERATT;
1655         spin_unlock_irq(&phba->hbalock);
1656         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1657         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1658 }
1659
1660 static void
1661 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1662 {
1663         struct lpfc_board_event_header board_event;
1664         struct Scsi_Host *shost;
1665
1666         board_event.event_type = FC_REG_BOARD_EVENT;
1667         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1668         shost = lpfc_shost_from_vport(phba->pport);
1669         fc_host_post_vendor_event(shost, fc_get_event_number(),
1670                                   sizeof(board_event),
1671                                   (char *) &board_event,
1672                                   LPFC_NL_VENDOR_ID);
1673 }
1674
1675 /**
1676  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1677  * @phba: pointer to lpfc hba data structure.
1678  *
1679  * This routine is invoked to handle the following HBA hardware error
1680  * conditions:
1681  * 1 - HBA error attention interrupt
1682  * 2 - DMA ring index out of range
1683  * 3 - Mailbox command came back as unknown
1684  **/
1685 static void
1686 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1687 {
1688         struct lpfc_vport *vport = phba->pport;
1689         struct lpfc_sli   *psli = &phba->sli;
1690         uint32_t event_data;
1691         unsigned long temperature;
1692         struct temp_event temp_event_data;
1693         struct Scsi_Host  *shost;
1694
1695         /* If the pci channel is offline, ignore possible errors,
1696          * since we cannot communicate with the pci card anyway.
1697          */
1698         if (pci_channel_offline(phba->pcidev)) {
1699                 spin_lock_irq(&phba->hbalock);
1700                 phba->hba_flag &= ~DEFER_ERATT;
1701                 spin_unlock_irq(&phba->hbalock);
1702                 return;
1703         }
1704
1705         /* If resets are disabled then leave the HBA alone and return */
1706         if (!phba->cfg_enable_hba_reset)
1707                 return;
1708
1709         /* Send an internal error event to mgmt application */
1710         lpfc_board_errevt_to_mgmt(phba);
1711
1712         if (phba->hba_flag & DEFER_ERATT)
1713                 lpfc_handle_deferred_eratt(phba);
1714
1715         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1716                 if (phba->work_hs & HS_FFER6)
1717                         /* Re-establishing Link */
1718                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1719                                         "1301 Re-establishing Link "
1720                                         "Data: x%x x%x x%x\n",
1721                                         phba->work_hs, phba->work_status[0],
1722                                         phba->work_status[1]);
1723                 if (phba->work_hs & HS_FFER8)
1724                         /* Device Zeroization */
1725                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1726                                         "2861 Host Authentication device "
1727                                         "zeroization Data:x%x x%x x%x\n",
1728                                         phba->work_hs, phba->work_status[0],
1729                                         phba->work_status[1]);
1730
1731                 spin_lock_irq(&phba->hbalock);
1732                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1733                 spin_unlock_irq(&phba->hbalock);
1734
1735                 /*
1736                 * Firmware stops when it triggled erratt with HS_FFER6.
1737                 * That could cause the I/Os dropped by the firmware.
1738                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1739                 * retry it after re-establishing link.
1740                 */
1741                 lpfc_sli_abort_fcp_rings(phba);
1742
1743                 /*
1744                  * There was a firmware error.  Take the hba offline and then
1745                  * attempt to restart it.
1746                  */
1747                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1748                 lpfc_offline(phba);
1749                 lpfc_sli_brdrestart(phba);
1750                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1751                         lpfc_unblock_mgmt_io(phba);
1752                         return;
1753                 }
1754                 lpfc_unblock_mgmt_io(phba);
1755         } else if (phba->work_hs & HS_CRIT_TEMP) {
1756                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1757                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1758                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1759                 temp_event_data.data = (uint32_t)temperature;
1760
1761                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1762                                 "0406 Adapter maximum temperature exceeded "
1763                                 "(%ld), taking this port offline "
1764                                 "Data: x%x x%x x%x\n",
1765                                 temperature, phba->work_hs,
1766                                 phba->work_status[0], phba->work_status[1]);
1767
1768                 shost = lpfc_shost_from_vport(phba->pport);
1769                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1770                                           sizeof(temp_event_data),
1771                                           (char *) &temp_event_data,
1772                                           SCSI_NL_VID_TYPE_PCI
1773                                           | PCI_VENDOR_ID_EMULEX);
1774
1775                 spin_lock_irq(&phba->hbalock);
1776                 phba->over_temp_state = HBA_OVER_TEMP;
1777                 spin_unlock_irq(&phba->hbalock);
1778                 lpfc_offline_eratt(phba);
1779
1780         } else {
1781                 /* The if clause above forces this code path when the status
1782                  * failure is a value other than FFER6. Do not call the offline
1783                  * twice. This is the adapter hardware error path.
1784                  */
1785                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1786                                 "0457 Adapter Hardware Error "
1787                                 "Data: x%x x%x x%x\n",
1788                                 phba->work_hs,
1789                                 phba->work_status[0], phba->work_status[1]);
1790
1791                 event_data = FC_REG_DUMP_EVENT;
1792                 shost = lpfc_shost_from_vport(vport);
1793                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1794                                 sizeof(event_data), (char *) &event_data,
1795                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1796
1797                 lpfc_offline_eratt(phba);
1798         }
1799         return;
1800 }
1801
1802 /**
1803  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1804  * @phba: pointer to lpfc hba data structure.
1805  * @mbx_action: flag for mailbox shutdown action.
1806  * @en_rn_msg: send reset/port recovery message.
1807  * This routine is invoked to perform an SLI4 port PCI function reset in
1808  * response to port status register polling attention. It waits for port
1809  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1810  * During this process, interrupt vectors are freed and later requested
1811  * for handling possible port resource change.
1812  **/
1813 static int
1814 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1815                             bool en_rn_msg)
1816 {
1817         int rc;
1818         uint32_t intr_mode;
1819
1820         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1821             LPFC_SLI_INTF_IF_TYPE_2) {
1822                 /*
1823                  * On error status condition, driver need to wait for port
1824                  * ready before performing reset.
1825                  */
1826                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1827                 if (rc)
1828                         return rc;
1829         }
1830
1831         /* need reset: attempt for port recovery */
1832         if (en_rn_msg)
1833                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1834                                 "2887 Reset Needed: Attempting Port "
1835                                 "Recovery...\n");
1836         lpfc_offline_prep(phba, mbx_action);
1837         lpfc_sli_flush_io_rings(phba);
1838         lpfc_offline(phba);
1839         /* release interrupt for possible resource change */
1840         lpfc_sli4_disable_intr(phba);
1841         rc = lpfc_sli_brdrestart(phba);
1842         if (rc) {
1843                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1844                                 "6309 Failed to restart board\n");
1845                 return rc;
1846         }
1847         /* request and enable interrupt */
1848         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1849         if (intr_mode == LPFC_INTR_ERROR) {
1850                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1851                                 "3175 Failed to enable interrupt\n");
1852                 return -EIO;
1853         }
1854         phba->intr_mode = intr_mode;
1855         rc = lpfc_online(phba);
1856         if (rc == 0)
1857                 lpfc_unblock_mgmt_io(phba);
1858
1859         return rc;
1860 }
1861
1862 /**
1863  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1864  * @phba: pointer to lpfc hba data structure.
1865  *
1866  * This routine is invoked to handle the SLI4 HBA hardware error attention
1867  * conditions.
1868  **/
1869 static void
1870 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1871 {
1872         struct lpfc_vport *vport = phba->pport;
1873         uint32_t event_data;
1874         struct Scsi_Host *shost;
1875         uint32_t if_type;
1876         struct lpfc_register portstat_reg = {0};
1877         uint32_t reg_err1, reg_err2;
1878         uint32_t uerrlo_reg, uemasklo_reg;
1879         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1880         bool en_rn_msg = true;
1881         struct temp_event temp_event_data;
1882         struct lpfc_register portsmphr_reg;
1883         int rc, i;
1884
1885         /* If the pci channel is offline, ignore possible errors, since
1886          * we cannot communicate with the pci card anyway.
1887          */
1888         if (pci_channel_offline(phba->pcidev)) {
1889                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1890                                 "3166 pci channel is offline\n");
1891                 lpfc_sli4_offline_eratt(phba);
1892                 return;
1893         }
1894
1895         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1896         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1897         switch (if_type) {
1898         case LPFC_SLI_INTF_IF_TYPE_0:
1899                 pci_rd_rc1 = lpfc_readl(
1900                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1901                                 &uerrlo_reg);
1902                 pci_rd_rc2 = lpfc_readl(
1903                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1904                                 &uemasklo_reg);
1905                 /* consider PCI bus read error as pci_channel_offline */
1906                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1907                         return;
1908                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1909                         lpfc_sli4_offline_eratt(phba);
1910                         return;
1911                 }
1912                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1913                                 "7623 Checking UE recoverable");
1914
1915                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1916                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1917                                        &portsmphr_reg.word0))
1918                                 continue;
1919
1920                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1921                                                    &portsmphr_reg);
1922                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1923                             LPFC_PORT_SEM_UE_RECOVERABLE)
1924                                 break;
1925                         /*Sleep for 1Sec, before checking SEMAPHORE */
1926                         msleep(1000);
1927                 }
1928
1929                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1930                                 "4827 smphr_port_status x%x : Waited %dSec",
1931                                 smphr_port_status, i);
1932
1933                 /* Recoverable UE, reset the HBA device */
1934                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1935                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1936                         for (i = 0; i < 20; i++) {
1937                                 msleep(1000);
1938                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1939                                     &portsmphr_reg.word0) &&
1940                                     (LPFC_POST_STAGE_PORT_READY ==
1941                                      bf_get(lpfc_port_smphr_port_status,
1942                                      &portsmphr_reg))) {
1943                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
1944                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
1945                                         if (rc == 0)
1946                                                 return;
1947                                         lpfc_printf_log(phba, KERN_ERR,
1948                                                 LOG_TRACE_EVENT,
1949                                                 "4215 Failed to recover UE");
1950                                         break;
1951                                 }
1952                         }
1953                 }
1954                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1955                                 "7624 Firmware not ready: Failing UE recovery,"
1956                                 " waited %dSec", i);
1957                 phba->link_state = LPFC_HBA_ERROR;
1958                 break;
1959
1960         case LPFC_SLI_INTF_IF_TYPE_2:
1961         case LPFC_SLI_INTF_IF_TYPE_6:
1962                 pci_rd_rc1 = lpfc_readl(
1963                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1964                                 &portstat_reg.word0);
1965                 /* consider PCI bus read error as pci_channel_offline */
1966                 if (pci_rd_rc1 == -EIO) {
1967                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1968                                 "3151 PCI bus read access failure: x%x\n",
1969                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1970                         lpfc_sli4_offline_eratt(phba);
1971                         return;
1972                 }
1973                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1974                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1975                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1976                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1977                                         "2889 Port Overtemperature event, "
1978                                         "taking port offline Data: x%x x%x\n",
1979                                         reg_err1, reg_err2);
1980
1981                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1982                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1983                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1984                         temp_event_data.data = 0xFFFFFFFF;
1985
1986                         shost = lpfc_shost_from_vport(phba->pport);
1987                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1988                                                   sizeof(temp_event_data),
1989                                                   (char *)&temp_event_data,
1990                                                   SCSI_NL_VID_TYPE_PCI
1991                                                   | PCI_VENDOR_ID_EMULEX);
1992
1993                         spin_lock_irq(&phba->hbalock);
1994                         phba->over_temp_state = HBA_OVER_TEMP;
1995                         spin_unlock_irq(&phba->hbalock);
1996                         lpfc_sli4_offline_eratt(phba);
1997                         return;
1998                 }
1999                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2000                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
2001                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2002                                         "3143 Port Down: Firmware Update "
2003                                         "Detected\n");
2004                         en_rn_msg = false;
2005                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2006                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2007                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2008                                         "3144 Port Down: Debug Dump\n");
2009                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2010                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
2011                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2012                                         "3145 Port Down: Provisioning\n");
2013
2014                 /* If resets are disabled then leave the HBA alone and return */
2015                 if (!phba->cfg_enable_hba_reset)
2016                         return;
2017
2018                 /* Check port status register for function reset */
2019                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
2020                                 en_rn_msg);
2021                 if (rc == 0) {
2022                         /* don't report event on forced debug dump */
2023                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2024                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2025                                 return;
2026                         else
2027                                 break;
2028                 }
2029                 /* fall through for not able to recover */
2030                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2031                                 "3152 Unrecoverable error\n");
2032                 phba->link_state = LPFC_HBA_ERROR;
2033                 break;
2034         case LPFC_SLI_INTF_IF_TYPE_1:
2035         default:
2036                 break;
2037         }
2038         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2039                         "3123 Report dump event to upper layer\n");
2040         /* Send an internal error event to mgmt application */
2041         lpfc_board_errevt_to_mgmt(phba);
2042
2043         event_data = FC_REG_DUMP_EVENT;
2044         shost = lpfc_shost_from_vport(vport);
2045         fc_host_post_vendor_event(shost, fc_get_event_number(),
2046                                   sizeof(event_data), (char *) &event_data,
2047                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
2048 }
2049
2050 /**
2051  * lpfc_handle_eratt - Wrapper func for handling hba error attention
2052  * @phba: pointer to lpfc HBA data structure.
2053  *
2054  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2055  * routine from the API jump table function pointer from the lpfc_hba struct.
2056  *
2057  * Return codes
2058  *   0 - success.
2059  *   Any other value - error.
2060  **/
2061 void
2062 lpfc_handle_eratt(struct lpfc_hba *phba)
2063 {
2064         (*phba->lpfc_handle_eratt)(phba);
2065 }
2066
2067 /**
2068  * lpfc_handle_latt - The HBA link event handler
2069  * @phba: pointer to lpfc hba data structure.
2070  *
2071  * This routine is invoked from the worker thread to handle a HBA host
2072  * attention link event. SLI3 only.
2073  **/
2074 void
2075 lpfc_handle_latt(struct lpfc_hba *phba)
2076 {
2077         struct lpfc_vport *vport = phba->pport;
2078         struct lpfc_sli   *psli = &phba->sli;
2079         LPFC_MBOXQ_t *pmb;
2080         volatile uint32_t control;
2081         struct lpfc_dmabuf *mp;
2082         int rc = 0;
2083
2084         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2085         if (!pmb) {
2086                 rc = 1;
2087                 goto lpfc_handle_latt_err_exit;
2088         }
2089
2090         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2091         if (!mp) {
2092                 rc = 2;
2093                 goto lpfc_handle_latt_free_pmb;
2094         }
2095
2096         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2097         if (!mp->virt) {
2098                 rc = 3;
2099                 goto lpfc_handle_latt_free_mp;
2100         }
2101
2102         /* Cleanup any outstanding ELS commands */
2103         lpfc_els_flush_all_cmd(phba);
2104
2105         psli->slistat.link_event++;
2106         lpfc_read_topology(phba, pmb, mp);
2107         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2108         pmb->vport = vport;
2109         /* Block ELS IOCBs until we have processed this mbox command */
2110         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2111         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2112         if (rc == MBX_NOT_FINISHED) {
2113                 rc = 4;
2114                 goto lpfc_handle_latt_free_mbuf;
2115         }
2116
2117         /* Clear Link Attention in HA REG */
2118         spin_lock_irq(&phba->hbalock);
2119         writel(HA_LATT, phba->HAregaddr);
2120         readl(phba->HAregaddr); /* flush */
2121         spin_unlock_irq(&phba->hbalock);
2122
2123         return;
2124
2125 lpfc_handle_latt_free_mbuf:
2126         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2127         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2128 lpfc_handle_latt_free_mp:
2129         kfree(mp);
2130 lpfc_handle_latt_free_pmb:
2131         mempool_free(pmb, phba->mbox_mem_pool);
2132 lpfc_handle_latt_err_exit:
2133         /* Enable Link attention interrupts */
2134         spin_lock_irq(&phba->hbalock);
2135         psli->sli_flag |= LPFC_PROCESS_LA;
2136         control = readl(phba->HCregaddr);
2137         control |= HC_LAINT_ENA;
2138         writel(control, phba->HCregaddr);
2139         readl(phba->HCregaddr); /* flush */
2140
2141         /* Clear Link Attention in HA REG */
2142         writel(HA_LATT, phba->HAregaddr);
2143         readl(phba->HAregaddr); /* flush */
2144         spin_unlock_irq(&phba->hbalock);
2145         lpfc_linkdown(phba);
2146         phba->link_state = LPFC_HBA_ERROR;
2147
2148         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2149                         "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2150
2151         return;
2152 }
2153
2154 /**
2155  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2156  * @phba: pointer to lpfc hba data structure.
2157  * @vpd: pointer to the vital product data.
2158  * @len: length of the vital product data in bytes.
2159  *
2160  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2161  * an array of characters. In this routine, the ModelName, ProgramType, and
2162  * ModelDesc, etc. fields of the phba data structure will be populated.
2163  *
2164  * Return codes
2165  *   0 - pointer to the VPD passed in is NULL
2166  *   1 - success
2167  **/
2168 int
2169 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2170 {
2171         uint8_t lenlo, lenhi;
2172         int Length;
2173         int i, j;
2174         int finished = 0;
2175         int index = 0;
2176
2177         if (!vpd)
2178                 return 0;
2179
2180         /* Vital Product */
2181         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2182                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2183                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2184                         (uint32_t) vpd[3]);
2185         while (!finished && (index < (len - 4))) {
2186                 switch (vpd[index]) {
2187                 case 0x82:
2188                 case 0x91:
2189                         index += 1;
2190                         lenlo = vpd[index];
2191                         index += 1;
2192                         lenhi = vpd[index];
2193                         index += 1;
2194                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2195                         index += i;
2196                         break;
2197                 case 0x90:
2198                         index += 1;
2199                         lenlo = vpd[index];
2200                         index += 1;
2201                         lenhi = vpd[index];
2202                         index += 1;
2203                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2204                         if (Length > len - index)
2205                                 Length = len - index;
2206                         while (Length > 0) {
2207                         /* Look for Serial Number */
2208                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2209                                 index += 2;
2210                                 i = vpd[index];
2211                                 index += 1;
2212                                 j = 0;
2213                                 Length -= (3+i);
2214                                 while(i--) {
2215                                         phba->SerialNumber[j++] = vpd[index++];
2216                                         if (j == 31)
2217                                                 break;
2218                                 }
2219                                 phba->SerialNumber[j] = 0;
2220                                 continue;
2221                         }
2222                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2223                                 phba->vpd_flag |= VPD_MODEL_DESC;
2224                                 index += 2;
2225                                 i = vpd[index];
2226                                 index += 1;
2227                                 j = 0;
2228                                 Length -= (3+i);
2229                                 while(i--) {
2230                                         phba->ModelDesc[j++] = vpd[index++];
2231                                         if (j == 255)
2232                                                 break;
2233                                 }
2234                                 phba->ModelDesc[j] = 0;
2235                                 continue;
2236                         }
2237                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2238                                 phba->vpd_flag |= VPD_MODEL_NAME;
2239                                 index += 2;
2240                                 i = vpd[index];
2241                                 index += 1;
2242                                 j = 0;
2243                                 Length -= (3+i);
2244                                 while(i--) {
2245                                         phba->ModelName[j++] = vpd[index++];
2246                                         if (j == 79)
2247                                                 break;
2248                                 }
2249                                 phba->ModelName[j] = 0;
2250                                 continue;
2251                         }
2252                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2253                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2254                                 index += 2;
2255                                 i = vpd[index];
2256                                 index += 1;
2257                                 j = 0;
2258                                 Length -= (3+i);
2259                                 while(i--) {
2260                                         phba->ProgramType[j++] = vpd[index++];
2261                                         if (j == 255)
2262                                                 break;
2263                                 }
2264                                 phba->ProgramType[j] = 0;
2265                                 continue;
2266                         }
2267                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2268                                 phba->vpd_flag |= VPD_PORT;
2269                                 index += 2;
2270                                 i = vpd[index];
2271                                 index += 1;
2272                                 j = 0;
2273                                 Length -= (3+i);
2274                                 while(i--) {
2275                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2276                                             (phba->sli4_hba.pport_name_sta ==
2277                                              LPFC_SLI4_PPNAME_GET)) {
2278                                                 j++;
2279                                                 index++;
2280                                         } else
2281                                                 phba->Port[j++] = vpd[index++];
2282                                         if (j == 19)
2283                                                 break;
2284                                 }
2285                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2286                                     (phba->sli4_hba.pport_name_sta ==
2287                                      LPFC_SLI4_PPNAME_NON))
2288                                         phba->Port[j] = 0;
2289                                 continue;
2290                         }
2291                         else {
2292                                 index += 2;
2293                                 i = vpd[index];
2294                                 index += 1;
2295                                 index += i;
2296                                 Length -= (3 + i);
2297                         }
2298                 }
2299                 finished = 0;
2300                 break;
2301                 case 0x78:
2302                         finished = 1;
2303                         break;
2304                 default:
2305                         index ++;
2306                         break;
2307                 }
2308         }
2309
2310         return(1);
2311 }
2312
2313 /**
2314  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2315  * @phba: pointer to lpfc hba data structure.
2316  * @mdp: pointer to the data structure to hold the derived model name.
2317  * @descp: pointer to the data structure to hold the derived description.
2318  *
2319  * This routine retrieves HBA's description based on its registered PCI device
2320  * ID. The @descp passed into this function points to an array of 256 chars. It
2321  * shall be returned with the model name, maximum speed, and the host bus type.
2322  * The @mdp passed into this function points to an array of 80 chars. When the
2323  * function returns, the @mdp will be filled with the model name.
2324  **/
2325 static void
2326 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2327 {
2328         lpfc_vpd_t *vp;
2329         uint16_t dev_id = phba->pcidev->device;
2330         int max_speed;
2331         int GE = 0;
2332         int oneConnect = 0; /* default is not a oneConnect */
2333         struct {
2334                 char *name;
2335                 char *bus;
2336                 char *function;
2337         } m = {"<Unknown>", "", ""};
2338
2339         if (mdp && mdp[0] != '\0'
2340                 && descp && descp[0] != '\0')
2341                 return;
2342
2343         if (phba->lmt & LMT_64Gb)
2344                 max_speed = 64;
2345         else if (phba->lmt & LMT_32Gb)
2346                 max_speed = 32;
2347         else if (phba->lmt & LMT_16Gb)
2348                 max_speed = 16;
2349         else if (phba->lmt & LMT_10Gb)
2350                 max_speed = 10;
2351         else if (phba->lmt & LMT_8Gb)
2352                 max_speed = 8;
2353         else if (phba->lmt & LMT_4Gb)
2354                 max_speed = 4;
2355         else if (phba->lmt & LMT_2Gb)
2356                 max_speed = 2;
2357         else if (phba->lmt & LMT_1Gb)
2358                 max_speed = 1;
2359         else
2360                 max_speed = 0;
2361
2362         vp = &phba->vpd;
2363
2364         switch (dev_id) {
2365         case PCI_DEVICE_ID_FIREFLY:
2366                 m = (typeof(m)){"LP6000", "PCI",
2367                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2368                 break;
2369         case PCI_DEVICE_ID_SUPERFLY:
2370                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2371                         m = (typeof(m)){"LP7000", "PCI", ""};
2372                 else
2373                         m = (typeof(m)){"LP7000E", "PCI", ""};
2374                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2375                 break;
2376         case PCI_DEVICE_ID_DRAGONFLY:
2377                 m = (typeof(m)){"LP8000", "PCI",
2378                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2379                 break;
2380         case PCI_DEVICE_ID_CENTAUR:
2381                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2382                         m = (typeof(m)){"LP9002", "PCI", ""};
2383                 else
2384                         m = (typeof(m)){"LP9000", "PCI", ""};
2385                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2386                 break;
2387         case PCI_DEVICE_ID_RFLY:
2388                 m = (typeof(m)){"LP952", "PCI",
2389                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2390                 break;
2391         case PCI_DEVICE_ID_PEGASUS:
2392                 m = (typeof(m)){"LP9802", "PCI-X",
2393                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2394                 break;
2395         case PCI_DEVICE_ID_THOR:
2396                 m = (typeof(m)){"LP10000", "PCI-X",
2397                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2398                 break;
2399         case PCI_DEVICE_ID_VIPER:
2400                 m = (typeof(m)){"LPX1000",  "PCI-X",
2401                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2402                 break;
2403         case PCI_DEVICE_ID_PFLY:
2404                 m = (typeof(m)){"LP982", "PCI-X",
2405                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2406                 break;
2407         case PCI_DEVICE_ID_TFLY:
2408                 m = (typeof(m)){"LP1050", "PCI-X",
2409                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2410                 break;
2411         case PCI_DEVICE_ID_HELIOS:
2412                 m = (typeof(m)){"LP11000", "PCI-X2",
2413                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2414                 break;
2415         case PCI_DEVICE_ID_HELIOS_SCSP:
2416                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2417                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2418                 break;
2419         case PCI_DEVICE_ID_HELIOS_DCSP:
2420                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2421                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2422                 break;
2423         case PCI_DEVICE_ID_NEPTUNE:
2424                 m = (typeof(m)){"LPe1000", "PCIe",
2425                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2426                 break;
2427         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2428                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2429                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2430                 break;
2431         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2432                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2433                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2434                 break;
2435         case PCI_DEVICE_ID_BMID:
2436                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2437                 break;
2438         case PCI_DEVICE_ID_BSMB:
2439                 m = (typeof(m)){"LP111", "PCI-X2",
2440                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2441                 break;
2442         case PCI_DEVICE_ID_ZEPHYR:
2443                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2444                 break;
2445         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2446                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2447                 break;
2448         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2449                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2450                 GE = 1;
2451                 break;
2452         case PCI_DEVICE_ID_ZMID:
2453                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2454                 break;
2455         case PCI_DEVICE_ID_ZSMB:
2456                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2457                 break;
2458         case PCI_DEVICE_ID_LP101:
2459                 m = (typeof(m)){"LP101", "PCI-X",
2460                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2461                 break;
2462         case PCI_DEVICE_ID_LP10000S:
2463                 m = (typeof(m)){"LP10000-S", "PCI",
2464                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2465                 break;
2466         case PCI_DEVICE_ID_LP11000S:
2467                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2468                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2469                 break;
2470         case PCI_DEVICE_ID_LPE11000S:
2471                 m = (typeof(m)){"LPe11000-S", "PCIe",
2472                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2473                 break;
2474         case PCI_DEVICE_ID_SAT:
2475                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2476                 break;
2477         case PCI_DEVICE_ID_SAT_MID:
2478                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2479                 break;
2480         case PCI_DEVICE_ID_SAT_SMB:
2481                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2482                 break;
2483         case PCI_DEVICE_ID_SAT_DCSP:
2484                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2485                 break;
2486         case PCI_DEVICE_ID_SAT_SCSP:
2487                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2488                 break;
2489         case PCI_DEVICE_ID_SAT_S:
2490                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2491                 break;
2492         case PCI_DEVICE_ID_HORNET:
2493                 m = (typeof(m)){"LP21000", "PCIe",
2494                                 "Obsolete, Unsupported FCoE Adapter"};
2495                 GE = 1;
2496                 break;
2497         case PCI_DEVICE_ID_PROTEUS_VF:
2498                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2499                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2500                 break;
2501         case PCI_DEVICE_ID_PROTEUS_PF:
2502                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2503                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2504                 break;
2505         case PCI_DEVICE_ID_PROTEUS_S:
2506                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2507                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2508                 break;
2509         case PCI_DEVICE_ID_TIGERSHARK:
2510                 oneConnect = 1;
2511                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2512                 break;
2513         case PCI_DEVICE_ID_TOMCAT:
2514                 oneConnect = 1;
2515                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2516                 break;
2517         case PCI_DEVICE_ID_FALCON:
2518                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2519                                 "EmulexSecure Fibre"};
2520                 break;
2521         case PCI_DEVICE_ID_BALIUS:
2522                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2523                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2524                 break;
2525         case PCI_DEVICE_ID_LANCER_FC:
2526                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2527                 break;
2528         case PCI_DEVICE_ID_LANCER_FC_VF:
2529                 m = (typeof(m)){"LPe16000", "PCIe",
2530                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2531                 break;
2532         case PCI_DEVICE_ID_LANCER_FCOE:
2533                 oneConnect = 1;
2534                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2535                 break;
2536         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2537                 oneConnect = 1;
2538                 m = (typeof(m)){"OCe15100", "PCIe",
2539                                 "Obsolete, Unsupported FCoE"};
2540                 break;
2541         case PCI_DEVICE_ID_LANCER_G6_FC:
2542                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2543                 break;
2544         case PCI_DEVICE_ID_LANCER_G7_FC:
2545                 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2546                 break;
2547         case PCI_DEVICE_ID_SKYHAWK:
2548         case PCI_DEVICE_ID_SKYHAWK_VF:
2549                 oneConnect = 1;
2550                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2551                 break;
2552         default:
2553                 m = (typeof(m)){"Unknown", "", ""};
2554                 break;
2555         }
2556
2557         if (mdp && mdp[0] == '\0')
2558                 snprintf(mdp, 79,"%s", m.name);
2559         /*
2560          * oneConnect hba requires special processing, they are all initiators
2561          * and we put the port number on the end
2562          */
2563         if (descp && descp[0] == '\0') {
2564                 if (oneConnect)
2565                         snprintf(descp, 255,
2566                                 "Emulex OneConnect %s, %s Initiator %s",
2567                                 m.name, m.function,
2568                                 phba->Port);
2569                 else if (max_speed == 0)
2570                         snprintf(descp, 255,
2571                                 "Emulex %s %s %s",
2572                                 m.name, m.bus, m.function);
2573                 else
2574                         snprintf(descp, 255,
2575                                 "Emulex %s %d%s %s %s",
2576                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2577                                 m.bus, m.function);
2578         }
2579 }
2580
2581 /**
2582  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2583  * @phba: pointer to lpfc hba data structure.
2584  * @pring: pointer to a IOCB ring.
2585  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2586  *
2587  * This routine posts a given number of IOCBs with the associated DMA buffer
2588  * descriptors specified by the cnt argument to the given IOCB ring.
2589  *
2590  * Return codes
2591  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2592  **/
2593 int
2594 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2595 {
2596         IOCB_t *icmd;
2597         struct lpfc_iocbq *iocb;
2598         struct lpfc_dmabuf *mp1, *mp2;
2599
2600         cnt += pring->missbufcnt;
2601
2602         /* While there are buffers to post */
2603         while (cnt > 0) {
2604                 /* Allocate buffer for  command iocb */
2605                 iocb = lpfc_sli_get_iocbq(phba);
2606                 if (iocb == NULL) {
2607                         pring->missbufcnt = cnt;
2608                         return cnt;
2609                 }
2610                 icmd = &iocb->iocb;
2611
2612                 /* 2 buffers can be posted per command */
2613                 /* Allocate buffer to post */
2614                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2615                 if (mp1)
2616                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2617                 if (!mp1 || !mp1->virt) {
2618                         kfree(mp1);
2619                         lpfc_sli_release_iocbq(phba, iocb);
2620                         pring->missbufcnt = cnt;
2621                         return cnt;
2622                 }
2623
2624                 INIT_LIST_HEAD(&mp1->list);
2625                 /* Allocate buffer to post */
2626                 if (cnt > 1) {
2627                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2628                         if (mp2)
2629                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2630                                                             &mp2->phys);
2631                         if (!mp2 || !mp2->virt) {
2632                                 kfree(mp2);
2633                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2634                                 kfree(mp1);
2635                                 lpfc_sli_release_iocbq(phba, iocb);
2636                                 pring->missbufcnt = cnt;
2637                                 return cnt;
2638                         }
2639
2640                         INIT_LIST_HEAD(&mp2->list);
2641                 } else {
2642                         mp2 = NULL;
2643                 }
2644
2645                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2646                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2647                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2648                 icmd->ulpBdeCount = 1;
2649                 cnt--;
2650                 if (mp2) {
2651                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2652                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2653                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2654                         cnt--;
2655                         icmd->ulpBdeCount = 2;
2656                 }
2657
2658                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2659                 icmd->ulpLe = 1;
2660
2661                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2662                     IOCB_ERROR) {
2663                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2664                         kfree(mp1);
2665                         cnt++;
2666                         if (mp2) {
2667                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2668                                 kfree(mp2);
2669                                 cnt++;
2670                         }
2671                         lpfc_sli_release_iocbq(phba, iocb);
2672                         pring->missbufcnt = cnt;
2673                         return cnt;
2674                 }
2675                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2676                 if (mp2)
2677                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2678         }
2679         pring->missbufcnt = 0;
2680         return 0;
2681 }
2682
2683 /**
2684  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2685  * @phba: pointer to lpfc hba data structure.
2686  *
2687  * This routine posts initial receive IOCB buffers to the ELS ring. The
2688  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2689  * set to 64 IOCBs. SLI3 only.
2690  *
2691  * Return codes
2692  *   0 - success (currently always success)
2693  **/
2694 static int
2695 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2696 {
2697         struct lpfc_sli *psli = &phba->sli;
2698
2699         /* Ring 0, ELS / CT buffers */
2700         lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2701         /* Ring 2 - FCP no buffers needed */
2702
2703         return 0;
2704 }
2705
2706 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2707
2708 /**
2709  * lpfc_sha_init - Set up initial array of hash table entries
2710  * @HashResultPointer: pointer to an array as hash table.
2711  *
2712  * This routine sets up the initial values to the array of hash table entries
2713  * for the LC HBAs.
2714  **/
2715 static void
2716 lpfc_sha_init(uint32_t * HashResultPointer)
2717 {
2718         HashResultPointer[0] = 0x67452301;
2719         HashResultPointer[1] = 0xEFCDAB89;
2720         HashResultPointer[2] = 0x98BADCFE;
2721         HashResultPointer[3] = 0x10325476;
2722         HashResultPointer[4] = 0xC3D2E1F0;
2723 }
2724
2725 /**
2726  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2727  * @HashResultPointer: pointer to an initial/result hash table.
2728  * @HashWorkingPointer: pointer to an working hash table.
2729  *
2730  * This routine iterates an initial hash table pointed by @HashResultPointer
2731  * with the values from the working hash table pointeed by @HashWorkingPointer.
2732  * The results are putting back to the initial hash table, returned through
2733  * the @HashResultPointer as the result hash table.
2734  **/
2735 static void
2736 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2737 {
2738         int t;
2739         uint32_t TEMP;
2740         uint32_t A, B, C, D, E;
2741         t = 16;
2742         do {
2743                 HashWorkingPointer[t] =
2744                     S(1,
2745                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2746                                                                      8] ^
2747                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2748         } while (++t <= 79);
2749         t = 0;
2750         A = HashResultPointer[0];
2751         B = HashResultPointer[1];
2752         C = HashResultPointer[2];
2753         D = HashResultPointer[3];
2754         E = HashResultPointer[4];
2755
2756         do {
2757                 if (t < 20) {
2758                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2759                 } else if (t < 40) {
2760                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2761                 } else if (t < 60) {
2762                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2763                 } else {
2764                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2765                 }
2766                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2767                 E = D;
2768                 D = C;
2769                 C = S(30, B);
2770                 B = A;
2771                 A = TEMP;
2772         } while (++t <= 79);
2773
2774         HashResultPointer[0] += A;
2775         HashResultPointer[1] += B;
2776         HashResultPointer[2] += C;
2777         HashResultPointer[3] += D;
2778         HashResultPointer[4] += E;
2779
2780 }
2781
2782 /**
2783  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2784  * @RandomChallenge: pointer to the entry of host challenge random number array.
2785  * @HashWorking: pointer to the entry of the working hash array.
2786  *
2787  * This routine calculates the working hash array referred by @HashWorking
2788  * from the challenge random numbers associated with the host, referred by
2789  * @RandomChallenge. The result is put into the entry of the working hash
2790  * array and returned by reference through @HashWorking.
2791  **/
2792 static void
2793 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2794 {
2795         *HashWorking = (*RandomChallenge ^ *HashWorking);
2796 }
2797
2798 /**
2799  * lpfc_hba_init - Perform special handling for LC HBA initialization
2800  * @phba: pointer to lpfc hba data structure.
2801  * @hbainit: pointer to an array of unsigned 32-bit integers.
2802  *
2803  * This routine performs the special handling for LC HBA initialization.
2804  **/
2805 void
2806 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2807 {
2808         int t;
2809         uint32_t *HashWorking;
2810         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2811
2812         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2813         if (!HashWorking)
2814                 return;
2815
2816         HashWorking[0] = HashWorking[78] = *pwwnn++;
2817         HashWorking[1] = HashWorking[79] = *pwwnn;
2818
2819         for (t = 0; t < 7; t++)
2820                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2821
2822         lpfc_sha_init(hbainit);
2823         lpfc_sha_iterate(hbainit, HashWorking);
2824         kfree(HashWorking);
2825 }
2826
2827 /**
2828  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2829  * @vport: pointer to a virtual N_Port data structure.
2830  *
2831  * This routine performs the necessary cleanups before deleting the @vport.
2832  * It invokes the discovery state machine to perform necessary state
2833  * transitions and to release the ndlps associated with the @vport. Note,
2834  * the physical port is treated as @vport 0.
2835  **/
2836 void
2837 lpfc_cleanup(struct lpfc_vport *vport)
2838 {
2839         struct lpfc_hba   *phba = vport->phba;
2840         struct lpfc_nodelist *ndlp, *next_ndlp;
2841         int i = 0;
2842
2843         if (phba->link_state > LPFC_LINK_DOWN)
2844                 lpfc_port_link_failure(vport);
2845
2846         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2847                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2848                         ndlp = lpfc_enable_node(vport, ndlp,
2849                                                 NLP_STE_UNUSED_NODE);
2850                         if (!ndlp)
2851                                 continue;
2852                         spin_lock_irq(&phba->ndlp_lock);
2853                         NLP_SET_FREE_REQ(ndlp);
2854                         spin_unlock_irq(&phba->ndlp_lock);
2855                         /* Trigger the release of the ndlp memory */
2856                         lpfc_nlp_put(ndlp);
2857                         continue;
2858                 }
2859                 spin_lock_irq(&phba->ndlp_lock);
2860                 if (NLP_CHK_FREE_REQ(ndlp)) {
2861                         /* The ndlp should not be in memory free mode already */
2862                         spin_unlock_irq(&phba->ndlp_lock);
2863                         continue;
2864                 } else
2865                         /* Indicate request for freeing ndlp memory */
2866                         NLP_SET_FREE_REQ(ndlp);
2867                 spin_unlock_irq(&phba->ndlp_lock);
2868
2869                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2870                     ndlp->nlp_DID == Fabric_DID) {
2871                         /* Just free up ndlp with Fabric_DID for vports */
2872                         lpfc_nlp_put(ndlp);
2873                         continue;
2874                 }
2875
2876                 /* take care of nodes in unused state before the state
2877                  * machine taking action.
2878                  */
2879                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2880                         lpfc_nlp_put(ndlp);
2881                         continue;
2882                 }
2883
2884                 if (ndlp->nlp_type & NLP_FABRIC)
2885                         lpfc_disc_state_machine(vport, ndlp, NULL,
2886                                         NLP_EVT_DEVICE_RECOVERY);
2887
2888                 lpfc_disc_state_machine(vport, ndlp, NULL,
2889                                              NLP_EVT_DEVICE_RM);
2890         }
2891
2892         /* At this point, ALL ndlp's should be gone
2893          * because of the previous NLP_EVT_DEVICE_RM.
2894          * Lets wait for this to happen, if needed.
2895          */
2896         while (!list_empty(&vport->fc_nodes)) {
2897                 if (i++ > 3000) {
2898                         lpfc_printf_vlog(vport, KERN_ERR,
2899                                          LOG_TRACE_EVENT,
2900                                 "0233 Nodelist not empty\n");
2901                         list_for_each_entry_safe(ndlp, next_ndlp,
2902                                                 &vport->fc_nodes, nlp_listp) {
2903                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2904                                                 LOG_TRACE_EVENT,
2905                                                 "0282 did:x%x ndlp:x%px "
2906                                                 "usgmap:x%x refcnt:%d\n",
2907                                                 ndlp->nlp_DID, (void *)ndlp,
2908                                                 ndlp->nlp_usg_map,
2909                                                 kref_read(&ndlp->kref));
2910                         }
2911                         break;
2912                 }
2913
2914                 /* Wait for any activity on ndlps to settle */
2915                 msleep(10);
2916         }
2917         lpfc_cleanup_vports_rrqs(vport, NULL);
2918 }
2919
2920 /**
2921  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2922  * @vport: pointer to a virtual N_Port data structure.
2923  *
2924  * This routine stops all the timers associated with a @vport. This function
2925  * is invoked before disabling or deleting a @vport. Note that the physical
2926  * port is treated as @vport 0.
2927  **/
2928 void
2929 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2930 {
2931         del_timer_sync(&vport->els_tmofunc);
2932         del_timer_sync(&vport->delayed_disc_tmo);
2933         lpfc_can_disctmo(vport);
2934         return;
2935 }
2936
2937 /**
2938  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2939  * @phba: pointer to lpfc hba data structure.
2940  *
2941  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2942  * caller of this routine should already hold the host lock.
2943  **/
2944 void
2945 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2946 {
2947         /* Clear pending FCF rediscovery wait flag */
2948         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2949
2950         /* Now, try to stop the timer */
2951         del_timer(&phba->fcf.redisc_wait);
2952 }
2953
2954 /**
2955  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2956  * @phba: pointer to lpfc hba data structure.
2957  *
2958  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2959  * checks whether the FCF rediscovery wait timer is pending with the host
2960  * lock held before proceeding with disabling the timer and clearing the
2961  * wait timer pendig flag.
2962  **/
2963 void
2964 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2965 {
2966         spin_lock_irq(&phba->hbalock);
2967         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2968                 /* FCF rediscovery timer already fired or stopped */
2969                 spin_unlock_irq(&phba->hbalock);
2970                 return;
2971         }
2972         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2973         /* Clear failover in progress flags */
2974         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2975         spin_unlock_irq(&phba->hbalock);
2976 }
2977
2978 /**
2979  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2980  * @phba: pointer to lpfc hba data structure.
2981  *
2982  * This routine stops all the timers associated with a HBA. This function is
2983  * invoked before either putting a HBA offline or unloading the driver.
2984  **/
2985 void
2986 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2987 {
2988         if (phba->pport)
2989                 lpfc_stop_vport_timers(phba->pport);
2990         cancel_delayed_work_sync(&phba->eq_delay_work);
2991         cancel_delayed_work_sync(&phba->idle_stat_delay_work);
2992         del_timer_sync(&phba->sli.mbox_tmo);
2993         del_timer_sync(&phba->fabric_block_timer);
2994         del_timer_sync(&phba->eratt_poll);
2995         del_timer_sync(&phba->hb_tmofunc);
2996         if (phba->sli_rev == LPFC_SLI_REV4) {
2997                 del_timer_sync(&phba->rrq_tmr);
2998                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2999         }
3000         phba->hb_outstanding = 0;
3001
3002         switch (phba->pci_dev_grp) {
3003         case LPFC_PCI_DEV_LP:
3004                 /* Stop any LightPulse device specific driver timers */
3005                 del_timer_sync(&phba->fcp_poll_timer);
3006                 break;
3007         case LPFC_PCI_DEV_OC:
3008                 /* Stop any OneConnect device specific driver timers */
3009                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3010                 break;
3011         default:
3012                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3013                                 "0297 Invalid device group (x%x)\n",
3014                                 phba->pci_dev_grp);
3015                 break;
3016         }
3017         return;
3018 }
3019
3020 /**
3021  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
3022  * @phba: pointer to lpfc hba data structure.
3023  * @mbx_action: flag for mailbox no wait action.
3024  *
3025  * This routine marks a HBA's management interface as blocked. Once the HBA's
3026  * management interface is marked as blocked, all the user space access to
3027  * the HBA, whether they are from sysfs interface or libdfc interface will
3028  * all be blocked. The HBA is set to block the management interface when the
3029  * driver prepares the HBA interface for online or offline.
3030  **/
3031 static void
3032 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
3033 {
3034         unsigned long iflag;
3035         uint8_t actcmd = MBX_HEARTBEAT;
3036         unsigned long timeout;
3037
3038         spin_lock_irqsave(&phba->hbalock, iflag);
3039         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
3040         spin_unlock_irqrestore(&phba->hbalock, iflag);
3041         if (mbx_action == LPFC_MBX_NO_WAIT)
3042                 return;
3043         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
3044         spin_lock_irqsave(&phba->hbalock, iflag);
3045         if (phba->sli.mbox_active) {
3046                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
3047                 /* Determine how long we might wait for the active mailbox
3048                  * command to be gracefully completed by firmware.
3049                  */
3050                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
3051                                 phba->sli.mbox_active) * 1000) + jiffies;
3052         }
3053         spin_unlock_irqrestore(&phba->hbalock, iflag);
3054
3055         /* Wait for the outstnading mailbox command to complete */
3056         while (phba->sli.mbox_active) {
3057                 /* Check active mailbox complete status every 2ms */
3058                 msleep(2);
3059                 if (time_after(jiffies, timeout)) {
3060                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3061                                         "2813 Mgmt IO is Blocked %x "
3062                                         "- mbox cmd %x still active\n",
3063                                         phba->sli.sli_flag, actcmd);
3064                         break;
3065                 }
3066         }
3067 }
3068
3069 /**
3070  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3071  * @phba: pointer to lpfc hba data structure.
3072  *
3073  * Allocate RPIs for all active remote nodes. This is needed whenever
3074  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3075  * is to fixup the temporary rpi assignments.
3076  **/
3077 void
3078 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3079 {
3080         struct lpfc_nodelist  *ndlp, *next_ndlp;
3081         struct lpfc_vport **vports;
3082         int i, rpi;
3083         unsigned long flags;
3084
3085         if (phba->sli_rev != LPFC_SLI_REV4)
3086                 return;
3087
3088         vports = lpfc_create_vport_work_array(phba);
3089         if (vports == NULL)
3090                 return;
3091
3092         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3093                 if (vports[i]->load_flag & FC_UNLOADING)
3094                         continue;
3095
3096                 list_for_each_entry_safe(ndlp, next_ndlp,
3097                                          &vports[i]->fc_nodes,
3098                                          nlp_listp) {
3099                         if (!NLP_CHK_NODE_ACT(ndlp))
3100                                 continue;
3101                         rpi = lpfc_sli4_alloc_rpi(phba);
3102                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3103                                 spin_lock_irqsave(&phba->ndlp_lock, flags);
3104                                 NLP_CLR_NODE_ACT(ndlp);
3105                                 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3106                                 continue;
3107                         }
3108                         ndlp->nlp_rpi = rpi;
3109                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3110                                          LOG_NODE | LOG_DISCOVERY,
3111                                          "0009 Assign RPI x%x to ndlp x%px "
3112                                          "DID:x%06x flg:x%x map:x%x\n",
3113                                          ndlp->nlp_rpi, ndlp, ndlp->nlp_DID,
3114                                          ndlp->nlp_flag, ndlp->nlp_usg_map);
3115                 }
3116         }
3117         lpfc_destroy_vport_work_array(phba, vports);
3118 }
3119
3120 /**
3121  * lpfc_create_expedite_pool - create expedite pool
3122  * @phba: pointer to lpfc hba data structure.
3123  *
3124  * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3125  * to expedite pool. Mark them as expedite.
3126  **/
3127 static void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3128 {
3129         struct lpfc_sli4_hdw_queue *qp;
3130         struct lpfc_io_buf *lpfc_ncmd;
3131         struct lpfc_io_buf *lpfc_ncmd_next;
3132         struct lpfc_epd_pool *epd_pool;
3133         unsigned long iflag;
3134
3135         epd_pool = &phba->epd_pool;
3136         qp = &phba->sli4_hba.hdwq[0];
3137
3138         spin_lock_init(&epd_pool->lock);
3139         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3140         spin_lock(&epd_pool->lock);
3141         INIT_LIST_HEAD(&epd_pool->list);
3142         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3143                                  &qp->lpfc_io_buf_list_put, list) {
3144                 list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
3145                 lpfc_ncmd->expedite = true;
3146                 qp->put_io_bufs--;
3147                 epd_pool->count++;
3148                 if (epd_pool->count >= XRI_BATCH)
3149                         break;
3150         }
3151         spin_unlock(&epd_pool->lock);
3152         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3153 }
3154
3155 /**
3156  * lpfc_destroy_expedite_pool - destroy expedite pool
3157  * @phba: pointer to lpfc hba data structure.
3158  *
3159  * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3160  * of HWQ 0. Clear the mark.
3161  **/
3162 static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3163 {
3164         struct lpfc_sli4_hdw_queue *qp;
3165         struct lpfc_io_buf *lpfc_ncmd;
3166         struct lpfc_io_buf *lpfc_ncmd_next;
3167         struct lpfc_epd_pool *epd_pool;
3168         unsigned long iflag;
3169
3170         epd_pool = &phba->epd_pool;
3171         qp = &phba->sli4_hba.hdwq[0];
3172
3173         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3174         spin_lock(&epd_pool->lock);
3175         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3176                                  &epd_pool->list, list) {
3177                 list_move_tail(&lpfc_ncmd->list,
3178                                &qp->lpfc_io_buf_list_put);
3179                 lpfc_ncmd->flags = false;
3180                 qp->put_io_bufs++;
3181                 epd_pool->count--;
3182         }
3183         spin_unlock(&epd_pool->lock);
3184         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3185 }
3186
3187 /**
3188  * lpfc_create_multixri_pools - create multi-XRI pools
3189  * @phba: pointer to lpfc hba data structure.
3190  *
3191  * This routine initialize public, private per HWQ. Then, move XRIs from
3192  * lpfc_io_buf_list_put to public pool. High and low watermark are also
3193  * Initialized.
3194  **/
3195 void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3196 {
3197         u32 i, j;
3198         u32 hwq_count;
3199         u32 count_per_hwq;
3200         struct lpfc_io_buf *lpfc_ncmd;
3201         struct lpfc_io_buf *lpfc_ncmd_next;
3202         unsigned long iflag;
3203         struct lpfc_sli4_hdw_queue *qp;
3204         struct lpfc_multixri_pool *multixri_pool;
3205         struct lpfc_pbl_pool *pbl_pool;
3206         struct lpfc_pvt_pool *pvt_pool;
3207
3208         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3209                         "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3210                         phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3211                         phba->sli4_hba.io_xri_cnt);
3212
3213         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3214                 lpfc_create_expedite_pool(phba);
3215
3216         hwq_count = phba->cfg_hdw_queue;
3217         count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3218
3219         for (i = 0; i < hwq_count; i++) {
3220                 multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
3221
3222                 if (!multixri_pool) {
3223                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3224                                         "1238 Failed to allocate memory for "
3225                                         "multixri_pool\n");
3226
3227                         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3228                                 lpfc_destroy_expedite_pool(phba);
3229
3230                         j = 0;
3231                         while (j < i) {
3232                                 qp = &phba->sli4_hba.hdwq[j];
3233                                 kfree(qp->p_multixri_pool);
3234                                 j++;
3235                         }
3236                         phba->cfg_xri_rebalancing = 0;
3237                         return;
3238                 }
3239
3240                 qp = &phba->sli4_hba.hdwq[i];
3241                 qp->p_multixri_pool = multixri_pool;
3242
3243                 multixri_pool->xri_limit = count_per_hwq;
3244                 multixri_pool->rrb_next_hwqid = i;
3245
3246                 /* Deal with public free xri pool */
3247                 pbl_pool = &multixri_pool->pbl_pool;
3248                 spin_lock_init(&pbl_pool->lock);
3249                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3250                 spin_lock(&pbl_pool->lock);
3251                 INIT_LIST_HEAD(&pbl_pool->list);
3252                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3253                                          &qp->lpfc_io_buf_list_put, list) {
3254                         list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
3255                         qp->put_io_bufs--;
3256                         pbl_pool->count++;
3257                 }
3258                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3259                                 "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3260                                 pbl_pool->count, i);
3261                 spin_unlock(&pbl_pool->lock);
3262                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3263
3264                 /* Deal with private free xri pool */
3265                 pvt_pool = &multixri_pool->pvt_pool;
3266                 pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3267                 pvt_pool->low_watermark = XRI_BATCH;
3268                 spin_lock_init(&pvt_pool->lock);
3269                 spin_lock_irqsave(&pvt_pool->lock, iflag);
3270                 INIT_LIST_HEAD(&pvt_pool->list);
3271                 pvt_pool->count = 0;
3272                 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
3273         }
3274 }
3275
3276 /**
3277  * lpfc_destroy_multixri_pools - destroy multi-XRI pools
3278  * @phba: pointer to lpfc hba data structure.
3279  *
3280  * This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3281  **/
3282 static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3283 {
3284         u32 i;
3285         u32 hwq_count;
3286         struct lpfc_io_buf *lpfc_ncmd;
3287         struct lpfc_io_buf *lpfc_ncmd_next;
3288         unsigned long iflag;
3289         struct lpfc_sli4_hdw_queue *qp;
3290         struct lpfc_multixri_pool *multixri_pool;
3291         struct lpfc_pbl_pool *pbl_pool;
3292         struct lpfc_pvt_pool *pvt_pool;
3293
3294         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3295                 lpfc_destroy_expedite_pool(phba);
3296
3297         if (!(phba->pport->load_flag & FC_UNLOADING))
3298                 lpfc_sli_flush_io_rings(phba);
3299
3300         hwq_count = phba->cfg_hdw_queue;
3301
3302         for (i = 0; i < hwq_count; i++) {
3303                 qp = &phba->sli4_hba.hdwq[i];
3304                 multixri_pool = qp->p_multixri_pool;
3305                 if (!multixri_pool)
3306                         continue;
3307
3308                 qp->p_multixri_pool = NULL;
3309
3310                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3311
3312                 /* Deal with public free xri pool */
3313                 pbl_pool = &multixri_pool->pbl_pool;
3314                 spin_lock(&pbl_pool->lock);
3315
3316                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3317                                 "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3318                                 pbl_pool->count, i);
3319
3320                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3321                                          &pbl_pool->list, list) {
3322                         list_move_tail(&lpfc_ncmd->list,
3323                                        &qp->lpfc_io_buf_list_put);
3324                         qp->put_io_bufs++;
3325                         pbl_pool->count--;
3326                 }
3327
3328                 INIT_LIST_HEAD(&pbl_pool->list);
3329                 pbl_pool->count = 0;
3330
3331                 spin_unlock(&pbl_pool->lock);
3332
3333                 /* Deal with private free xri pool */
3334                 pvt_pool = &multixri_pool->pvt_pool;
3335                 spin_lock(&pvt_pool->lock);
3336
3337                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3338                                 "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3339                                 pvt_pool->count, i);
3340
3341                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3342                                          &pvt_pool->list, list) {
3343                         list_move_tail(&lpfc_ncmd->list,
3344                                        &qp->lpfc_io_buf_list_put);
3345                         qp->put_io_bufs++;
3346                         pvt_pool->count--;
3347                 }
3348
3349                 INIT_LIST_HEAD(&pvt_pool->list);
3350                 pvt_pool->count = 0;
3351
3352                 spin_unlock(&pvt_pool->lock);
3353                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3354
3355                 kfree(multixri_pool);
3356         }
3357 }
3358
3359 /**
3360  * lpfc_online - Initialize and bring a HBA online
3361  * @phba: pointer to lpfc hba data structure.
3362  *
3363  * This routine initializes the HBA and brings a HBA online. During this
3364  * process, the management interface is blocked to prevent user space access
3365  * to the HBA interfering with the driver initialization.
3366  *
3367  * Return codes
3368  *   0 - successful
3369  *   1 - failed
3370  **/
3371 int
3372 lpfc_online(struct lpfc_hba *phba)
3373 {
3374         struct lpfc_vport *vport;
3375         struct lpfc_vport **vports;
3376         int i, error = 0;
3377         bool vpis_cleared = false;
3378
3379         if (!phba)
3380                 return 0;
3381         vport = phba->pport;
3382
3383         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3384                 return 0;
3385
3386         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3387                         "0458 Bring Adapter online\n");
3388
3389         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3390
3391         if (phba->sli_rev == LPFC_SLI_REV4) {
3392                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3393                         lpfc_unblock_mgmt_io(phba);
3394                         return 1;
3395                 }
3396                 spin_lock_irq(&phba->hbalock);
3397                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3398                         vpis_cleared = true;
3399                 spin_unlock_irq(&phba->hbalock);
3400
3401                 /* Reestablish the local initiator port.
3402                  * The offline process destroyed the previous lport.
3403                  */
3404                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3405                                 !phba->nvmet_support) {
3406                         error = lpfc_nvme_create_localport(phba->pport);
3407                         if (error)
3408                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3409                                         "6132 NVME restore reg failed "
3410                                         "on nvmei error x%x\n", error);
3411                 }
3412         } else {
3413                 lpfc_sli_queue_init(phba);
3414                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3415                         lpfc_unblock_mgmt_io(phba);
3416                         return 1;
3417                 }
3418         }
3419
3420         vports = lpfc_create_vport_work_array(phba);
3421         if (vports != NULL) {
3422                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3423                         struct Scsi_Host *shost;
3424                         shost = lpfc_shost_from_vport(vports[i]);
3425                         spin_lock_irq(shost->host_lock);
3426                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3427                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3428                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3429                         if (phba->sli_rev == LPFC_SLI_REV4) {
3430                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3431                                 if ((vpis_cleared) &&
3432                                     (vports[i]->port_type !=
3433                                         LPFC_PHYSICAL_PORT))
3434                                         vports[i]->vpi = 0;
3435                         }
3436                         spin_unlock_irq(shost->host_lock);
3437                 }
3438         }
3439         lpfc_destroy_vport_work_array(phba, vports);
3440
3441         if (phba->cfg_xri_rebalancing)
3442                 lpfc_create_multixri_pools(phba);
3443
3444         lpfc_cpuhp_add(phba);
3445
3446         lpfc_unblock_mgmt_io(phba);
3447         return 0;
3448 }
3449
3450 /**
3451  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3452  * @phba: pointer to lpfc hba data structure.
3453  *
3454  * This routine marks a HBA's management interface as not blocked. Once the
3455  * HBA's management interface is marked as not blocked, all the user space
3456  * access to the HBA, whether they are from sysfs interface or libdfc
3457  * interface will be allowed. The HBA is set to block the management interface
3458  * when the driver prepares the HBA interface for online or offline and then
3459  * set to unblock the management interface afterwards.
3460  **/
3461 void
3462 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3463 {
3464         unsigned long iflag;
3465
3466         spin_lock_irqsave(&phba->hbalock, iflag);
3467         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3468         spin_unlock_irqrestore(&phba->hbalock, iflag);
3469 }
3470
3471 /**
3472  * lpfc_offline_prep - Prepare a HBA to be brought offline
3473  * @phba: pointer to lpfc hba data structure.
3474  * @mbx_action: flag for mailbox shutdown action.
3475  *
3476  * This routine is invoked to prepare a HBA to be brought offline. It performs
3477  * unregistration login to all the nodes on all vports and flushes the mailbox
3478  * queue to make it ready to be brought offline.
3479  **/
3480 void
3481 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3482 {
3483         struct lpfc_vport *vport = phba->pport;
3484         struct lpfc_nodelist  *ndlp, *next_ndlp;
3485         struct lpfc_vport **vports;
3486         struct Scsi_Host *shost;
3487         int i;
3488
3489         if (vport->fc_flag & FC_OFFLINE_MODE)
3490                 return;
3491
3492         lpfc_block_mgmt_io(phba, mbx_action);
3493
3494         lpfc_linkdown(phba);
3495
3496         /* Issue an unreg_login to all nodes on all vports */
3497         vports = lpfc_create_vport_work_array(phba);
3498         if (vports != NULL) {
3499                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3500                         if (vports[i]->load_flag & FC_UNLOADING)
3501                                 continue;
3502                         shost = lpfc_shost_from_vport(vports[i]);
3503                         spin_lock_irq(shost->host_lock);
3504                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3505                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3506                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3507                         spin_unlock_irq(shost->host_lock);
3508
3509                         shost = lpfc_shost_from_vport(vports[i]);
3510                         list_for_each_entry_safe(ndlp, next_ndlp,
3511                                                  &vports[i]->fc_nodes,
3512                                                  nlp_listp) {
3513                                 if ((!NLP_CHK_NODE_ACT(ndlp)) ||
3514                                     ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
3515                                         /* Driver must assume RPI is invalid for
3516                                          * any unused or inactive node.
3517                                          */
3518                                         ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3519                                         continue;
3520                                 }
3521
3522                                 if (ndlp->nlp_type & NLP_FABRIC) {
3523                                         lpfc_disc_state_machine(vports[i], ndlp,
3524                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3525                                         lpfc_disc_state_machine(vports[i], ndlp,
3526                                                 NULL, NLP_EVT_DEVICE_RM);
3527                                 }
3528                                 spin_lock_irq(shost->host_lock);
3529                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3530                                 spin_unlock_irq(shost->host_lock);
3531                                 /*
3532                                  * Whenever an SLI4 port goes offline, free the
3533                                  * RPI. Get a new RPI when the adapter port
3534                                  * comes back online.
3535                                  */
3536                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3537                                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3538                                                  LOG_NODE | LOG_DISCOVERY,
3539                                                  "0011 Free RPI x%x on "
3540                                                  "ndlp:x%px did x%x "
3541                                                  "usgmap:x%x\n",
3542                                                  ndlp->nlp_rpi, ndlp,
3543                                                  ndlp->nlp_DID,
3544                                                  ndlp->nlp_usg_map);
3545                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3546                                         ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3547                                 }
3548                                 lpfc_unreg_rpi(vports[i], ndlp);
3549                         }
3550                 }
3551         }
3552         lpfc_destroy_vport_work_array(phba, vports);
3553
3554         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3555
3556         if (phba->wq)
3557                 flush_workqueue(phba->wq);
3558 }
3559
3560 /**
3561  * lpfc_offline - Bring a HBA offline
3562  * @phba: pointer to lpfc hba data structure.
3563  *
3564  * This routine actually brings a HBA offline. It stops all the timers
3565  * associated with the HBA, brings down the SLI layer, and eventually
3566  * marks the HBA as in offline state for the upper layer protocol.
3567  **/
3568 void
3569 lpfc_offline(struct lpfc_hba *phba)
3570 {
3571         struct Scsi_Host  *shost;
3572         struct lpfc_vport **vports;
3573         int i;
3574
3575         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3576                 return;
3577
3578         /* stop port and all timers associated with this hba */
3579         lpfc_stop_port(phba);
3580
3581         /* Tear down the local and target port registrations.  The
3582          * nvme transports need to cleanup.
3583          */
3584         lpfc_nvmet_destroy_targetport(phba);
3585         lpfc_nvme_destroy_localport(phba->pport);
3586
3587         vports = lpfc_create_vport_work_array(phba);
3588         if (vports != NULL)
3589                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3590                         lpfc_stop_vport_timers(vports[i]);
3591         lpfc_destroy_vport_work_array(phba, vports);
3592         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3593                         "0460 Bring Adapter offline\n");
3594         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3595            now.  */
3596         lpfc_sli_hba_down(phba);
3597         spin_lock_irq(&phba->hbalock);
3598         phba->work_ha = 0;
3599         spin_unlock_irq(&phba->hbalock);
3600         vports = lpfc_create_vport_work_array(phba);
3601         if (vports != NULL)
3602                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3603                         shost = lpfc_shost_from_vport(vports[i]);
3604                         spin_lock_irq(shost->host_lock);
3605                         vports[i]->work_port_events = 0;
3606                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3607                         spin_unlock_irq(shost->host_lock);
3608                 }
3609         lpfc_destroy_vport_work_array(phba, vports);
3610         __lpfc_cpuhp_remove(phba);
3611
3612         if (phba->cfg_xri_rebalancing)
3613                 lpfc_destroy_multixri_pools(phba);
3614 }
3615
3616 /**
3617  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3618  * @phba: pointer to lpfc hba data structure.
3619  *
3620  * This routine is to free all the SCSI buffers and IOCBs from the driver
3621  * list back to kernel. It is called from lpfc_pci_remove_one to free
3622  * the internal resources before the device is removed from the system.
3623  **/
3624 static void
3625 lpfc_scsi_free(struct lpfc_hba *phba)
3626 {
3627         struct lpfc_io_buf *sb, *sb_next;
3628
3629         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3630                 return;
3631
3632         spin_lock_irq(&phba->hbalock);
3633
3634         /* Release all the lpfc_scsi_bufs maintained by this host. */
3635
3636         spin_lock(&phba->scsi_buf_list_put_lock);
3637         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3638                                  list) {
3639                 list_del(&sb->list);
3640                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3641                               sb->dma_handle);
3642                 kfree(sb);
3643                 phba->total_scsi_bufs--;
3644         }
3645         spin_unlock(&phba->scsi_buf_list_put_lock);
3646
3647         spin_lock(&phba->scsi_buf_list_get_lock);
3648         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3649                                  list) {
3650                 list_del(&sb->list);
3651                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3652                               sb->dma_handle);
3653                 kfree(sb);
3654                 phba->total_scsi_bufs--;
3655         }
3656         spin_unlock(&phba->scsi_buf_list_get_lock);
3657         spin_unlock_irq(&phba->hbalock);
3658 }
3659
3660 /**
3661  * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
3662  * @phba: pointer to lpfc hba data structure.
3663  *
3664  * This routine is to free all the IO buffers and IOCBs from the driver
3665  * list back to kernel. It is called from lpfc_pci_remove_one to free
3666  * the internal resources before the device is removed from the system.
3667  **/
3668 void
3669 lpfc_io_free(struct lpfc_hba *phba)
3670 {
3671         struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
3672         struct lpfc_sli4_hdw_queue *qp;
3673         int idx;
3674
3675         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3676                 qp = &phba->sli4_hba.hdwq[idx];
3677                 /* Release all the lpfc_nvme_bufs maintained by this host. */
3678                 spin_lock(&qp->io_buf_list_put_lock);
3679                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3680                                          &qp->lpfc_io_buf_list_put,
3681                                          list) {
3682                         list_del(&lpfc_ncmd->list);
3683                         qp->put_io_bufs--;
3684                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3685                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3686                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3687                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3688                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3689                         kfree(lpfc_ncmd);
3690                         qp->total_io_bufs--;
3691                 }
3692                 spin_unlock(&qp->io_buf_list_put_lock);
3693
3694                 spin_lock(&qp->io_buf_list_get_lock);
3695                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3696                                          &qp->lpfc_io_buf_list_get,
3697                                          list) {
3698                         list_del(&lpfc_ncmd->list);
3699                         qp->get_io_bufs--;
3700                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3701                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3702                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3703                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3704                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3705                         kfree(lpfc_ncmd);
3706                         qp->total_io_bufs--;
3707                 }
3708                 spin_unlock(&qp->io_buf_list_get_lock);
3709         }
3710 }
3711
3712 /**
3713  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3714  * @phba: pointer to lpfc hba data structure.
3715  *
3716  * This routine first calculates the sizes of the current els and allocated
3717  * scsi sgl lists, and then goes through all sgls to updates the physical
3718  * XRIs assigned due to port function reset. During port initialization, the
3719  * current els and allocated scsi sgl lists are 0s.
3720  *
3721  * Return codes
3722  *   0 - successful (for now, it always returns 0)
3723  **/
3724 int
3725 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3726 {
3727         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3728         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3729         LIST_HEAD(els_sgl_list);
3730         int rc;
3731
3732         /*
3733          * update on pci function's els xri-sgl list
3734          */
3735         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3736
3737         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3738                 /* els xri-sgl expanded */
3739                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3740                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3741                                 "3157 ELS xri-sgl count increased from "
3742                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3743                                 els_xri_cnt);
3744                 /* allocate the additional els sgls */
3745                 for (i = 0; i < xri_cnt; i++) {
3746                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3747                                              GFP_KERNEL);
3748                         if (sglq_entry == NULL) {
3749                                 lpfc_printf_log(phba, KERN_ERR,
3750                                                 LOG_TRACE_EVENT,
3751                                                 "2562 Failure to allocate an "
3752                                                 "ELS sgl entry:%d\n", i);
3753                                 rc = -ENOMEM;
3754                                 goto out_free_mem;
3755                         }
3756                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3757                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3758                                                            &sglq_entry->phys);
3759                         if (sglq_entry->virt == NULL) {
3760                                 kfree(sglq_entry);
3761                                 lpfc_printf_log(phba, KERN_ERR,
3762                                                 LOG_TRACE_EVENT,
3763                                                 "2563 Failure to allocate an "
3764                                                 "ELS mbuf:%d\n", i);
3765                                 rc = -ENOMEM;
3766                                 goto out_free_mem;
3767                         }
3768                         sglq_entry->sgl = sglq_entry->virt;
3769                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3770                         sglq_entry->state = SGL_FREED;
3771                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3772                 }
3773                 spin_lock_irq(&phba->hbalock);
3774                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3775                 list_splice_init(&els_sgl_list,
3776                                  &phba->sli4_hba.lpfc_els_sgl_list);
3777                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3778                 spin_unlock_irq(&phba->hbalock);
3779         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3780                 /* els xri-sgl shrinked */
3781                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3782                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3783                                 "3158 ELS xri-sgl count decreased from "
3784                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3785                                 els_xri_cnt);
3786                 spin_lock_irq(&phba->hbalock);
3787                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3788                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3789                                  &els_sgl_list);
3790                 /* release extra els sgls from list */
3791                 for (i = 0; i < xri_cnt; i++) {
3792                         list_remove_head(&els_sgl_list,
3793                                          sglq_entry, struct lpfc_sglq, list);
3794                         if (sglq_entry) {
3795                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
3796                                                  sglq_entry->phys);
3797                                 kfree(sglq_entry);
3798                         }
3799                 }
3800                 list_splice_init(&els_sgl_list,
3801                                  &phba->sli4_hba.lpfc_els_sgl_list);
3802                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3803                 spin_unlock_irq(&phba->hbalock);
3804         } else
3805                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3806                                 "3163 ELS xri-sgl count unchanged: %d\n",
3807                                 els_xri_cnt);
3808         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3809
3810         /* update xris to els sgls on the list */
3811         sglq_entry = NULL;
3812         sglq_entry_next = NULL;
3813         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3814                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
3815                 lxri = lpfc_sli4_next_xritag(phba);
3816                 if (lxri == NO_XRI) {
3817                         lpfc_printf_log(phba, KERN_ERR,
3818                                         LOG_TRACE_EVENT,
3819                                         "2400 Failed to allocate xri for "
3820                                         "ELS sgl\n");
3821                         rc = -ENOMEM;
3822                         goto out_free_mem;
3823                 }
3824                 sglq_entry->sli4_lxritag = lxri;
3825                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3826         }
3827         return 0;
3828
3829 out_free_mem:
3830         lpfc_free_els_sgl_list(phba);
3831         return rc;
3832 }
3833
3834 /**
3835  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3836  * @phba: pointer to lpfc hba data structure.
3837  *
3838  * This routine first calculates the sizes of the current els and allocated
3839  * scsi sgl lists, and then goes through all sgls to updates the physical
3840  * XRIs assigned due to port function reset. During port initialization, the
3841  * current els and allocated scsi sgl lists are 0s.
3842  *
3843  * Return codes
3844  *   0 - successful (for now, it always returns 0)
3845  **/
3846 int
3847 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3848 {
3849         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3850         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3851         uint16_t nvmet_xri_cnt;
3852         LIST_HEAD(nvmet_sgl_list);
3853         int rc;
3854
3855         /*
3856          * update on pci function's nvmet xri-sgl list
3857          */
3858         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3859
3860         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3861         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3862         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3863                 /* els xri-sgl expanded */
3864                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3865                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3866                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3867                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3868                 /* allocate the additional nvmet sgls */
3869                 for (i = 0; i < xri_cnt; i++) {
3870                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3871                                              GFP_KERNEL);
3872                         if (sglq_entry == NULL) {
3873                                 lpfc_printf_log(phba, KERN_ERR,
3874                                                 LOG_TRACE_EVENT,
3875                                                 "6303 Failure to allocate an "
3876                                                 "NVMET sgl entry:%d\n", i);
3877                                 rc = -ENOMEM;
3878                                 goto out_free_mem;
3879                         }
3880                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
3881                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3882                                                            &sglq_entry->phys);
3883                         if (sglq_entry->virt == NULL) {
3884                                 kfree(sglq_entry);
3885                                 lpfc_printf_log(phba, KERN_ERR,
3886                                                 LOG_TRACE_EVENT,
3887                                                 "6304 Failure to allocate an "
3888                                                 "NVMET buf:%d\n", i);
3889                                 rc = -ENOMEM;
3890                                 goto out_free_mem;
3891                         }
3892                         sglq_entry->sgl = sglq_entry->virt;
3893                         memset(sglq_entry->sgl, 0,
3894                                phba->cfg_sg_dma_buf_size);
3895                         sglq_entry->state = SGL_FREED;
3896                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3897                 }
3898                 spin_lock_irq(&phba->hbalock);
3899                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3900                 list_splice_init(&nvmet_sgl_list,
3901                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3902                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3903                 spin_unlock_irq(&phba->hbalock);
3904         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3905                 /* nvmet xri-sgl shrunk */
3906                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3907                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3908                                 "6305 NVMET xri-sgl count decreased from "
3909                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3910                                 nvmet_xri_cnt);
3911                 spin_lock_irq(&phba->hbalock);
3912                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3913                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3914                                  &nvmet_sgl_list);
3915                 /* release extra nvmet sgls from list */
3916                 for (i = 0; i < xri_cnt; i++) {
3917                         list_remove_head(&nvmet_sgl_list,
3918                                          sglq_entry, struct lpfc_sglq, list);
3919                         if (sglq_entry) {
3920                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3921                                                     sglq_entry->phys);
3922                                 kfree(sglq_entry);
3923                         }
3924                 }
3925                 list_splice_init(&nvmet_sgl_list,
3926                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3927                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3928                 spin_unlock_irq(&phba->hbalock);
3929         } else
3930                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3931                                 "6306 NVMET xri-sgl count unchanged: %d\n",
3932                                 nvmet_xri_cnt);
3933         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3934
3935         /* update xris to nvmet sgls on the list */
3936         sglq_entry = NULL;
3937         sglq_entry_next = NULL;
3938         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3939                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3940                 lxri = lpfc_sli4_next_xritag(phba);
3941                 if (lxri == NO_XRI) {
3942                         lpfc_printf_log(phba, KERN_ERR,
3943                                         LOG_TRACE_EVENT,
3944                                         "6307 Failed to allocate xri for "
3945                                         "NVMET sgl\n");
3946                         rc = -ENOMEM;
3947                         goto out_free_mem;
3948                 }
3949                 sglq_entry->sli4_lxritag = lxri;
3950                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3951         }
3952         return 0;
3953
3954 out_free_mem:
3955         lpfc_free_nvmet_sgl_list(phba);
3956         return rc;
3957 }
3958
3959 int
3960 lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
3961 {
3962         LIST_HEAD(blist);
3963         struct lpfc_sli4_hdw_queue *qp;
3964         struct lpfc_io_buf *lpfc_cmd;
3965         struct lpfc_io_buf *iobufp, *prev_iobufp;
3966         int idx, cnt, xri, inserted;
3967
3968         cnt = 0;
3969         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3970                 qp = &phba->sli4_hba.hdwq[idx];
3971                 spin_lock_irq(&qp->io_buf_list_get_lock);
3972                 spin_lock(&qp->io_buf_list_put_lock);
3973
3974                 /* Take everything off the get and put lists */
3975                 list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
3976                 list_splice(&qp->lpfc_io_buf_list_put, &blist);
3977                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
3978                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
3979                 cnt += qp->get_io_bufs + qp->put_io_bufs;
3980                 qp->get_io_bufs = 0;
3981                 qp->put_io_bufs = 0;
3982                 qp->total_io_bufs = 0;
3983                 spin_unlock(&qp->io_buf_list_put_lock);
3984                 spin_unlock_irq(&qp->io_buf_list_get_lock);
3985         }
3986
3987         /*
3988          * Take IO buffers off blist and put on cbuf sorted by XRI.
3989          * This is because POST_SGL takes a sequential range of XRIs
3990          * to post to the firmware.
3991          */
3992         for (idx = 0; idx < cnt; idx++) {
3993                 list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
3994                 if (!lpfc_cmd)
3995                         return cnt;
3996                 if (idx == 0) {
3997                         list_add_tail(&lpfc_cmd->list, cbuf);
3998                         continue;
3999                 }
4000                 xri = lpfc_cmd->cur_iocbq.sli4_xritag;
4001                 inserted = 0;
4002                 prev_iobufp = NULL;
4003                 list_for_each_entry(iobufp, cbuf, list) {
4004                         if (xri < iobufp->cur_iocbq.sli4_xritag) {
4005                                 if (prev_iobufp)
4006                                         list_add(&lpfc_cmd->list,
4007                                                  &prev_iobufp->list);
4008                                 else
4009                                         list_add(&lpfc_cmd->list, cbuf);
4010                                 inserted = 1;
4011                                 break;
4012                         }
4013                         prev_iobufp = iobufp;
4014                 }
4015                 if (!inserted)
4016                         list_add_tail(&lpfc_cmd->list, cbuf);
4017         }
4018         return cnt;
4019 }
4020
4021 int
4022 lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
4023 {
4024         struct lpfc_sli4_hdw_queue *qp;
4025         struct lpfc_io_buf *lpfc_cmd;
4026         int idx, cnt;
4027
4028         qp = phba->sli4_hba.hdwq;
4029         cnt = 0;
4030         while (!list_empty(cbuf)) {
4031                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4032                         list_remove_head(cbuf, lpfc_cmd,
4033                                          struct lpfc_io_buf, list);
4034                         if (!lpfc_cmd)
4035                                 return cnt;
4036                         cnt++;
4037                         qp = &phba->sli4_hba.hdwq[idx];
4038                         lpfc_cmd->hdwq_no = idx;
4039                         lpfc_cmd->hdwq = qp;
4040                         lpfc_cmd->cur_iocbq.wqe_cmpl = NULL;
4041                         lpfc_cmd->cur_iocbq.iocb_cmpl = NULL;
4042                         spin_lock(&qp->io_buf_list_put_lock);
4043                         list_add_tail(&lpfc_cmd->list,
4044                                       &qp->lpfc_io_buf_list_put);
4045                         qp->put_io_bufs++;
4046                         qp->total_io_bufs++;
4047                         spin_unlock(&qp->io_buf_list_put_lock);
4048                 }
4049         }
4050         return cnt;
4051 }
4052
4053 /**
4054  * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
4055  * @phba: pointer to lpfc hba data structure.
4056  *
4057  * This routine first calculates the sizes of the current els and allocated
4058  * scsi sgl lists, and then goes through all sgls to updates the physical
4059  * XRIs assigned due to port function reset. During port initialization, the
4060  * current els and allocated scsi sgl lists are 0s.
4061  *
4062  * Return codes
4063  *   0 - successful (for now, it always returns 0)
4064  **/
4065 int
4066 lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
4067 {
4068         struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
4069         uint16_t i, lxri, els_xri_cnt;
4070         uint16_t io_xri_cnt, io_xri_max;
4071         LIST_HEAD(io_sgl_list);
4072         int rc, cnt;
4073
4074         /*
4075          * update on pci function's allocated nvme xri-sgl list
4076          */
4077
4078         /* maximum number of xris available for nvme buffers */
4079         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4080         io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4081         phba->sli4_hba.io_xri_max = io_xri_max;
4082
4083         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4084                         "6074 Current allocated XRI sgl count:%d, "
4085                         "maximum XRI count:%d\n",
4086                         phba->sli4_hba.io_xri_cnt,
4087                         phba->sli4_hba.io_xri_max);
4088
4089         cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
4090
4091         if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4092                 /* max nvme xri shrunk below the allocated nvme buffers */
4093                 io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4094                                         phba->sli4_hba.io_xri_max;
4095                 /* release the extra allocated nvme buffers */
4096                 for (i = 0; i < io_xri_cnt; i++) {
4097                         list_remove_head(&io_sgl_list, lpfc_ncmd,
4098                                          struct lpfc_io_buf, list);
4099                         if (lpfc_ncmd) {
4100                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4101                                               lpfc_ncmd->data,
4102                                               lpfc_ncmd->dma_handle);
4103                                 kfree(lpfc_ncmd);
4104                         }
4105                 }
4106                 phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4107         }
4108
4109         /* update xris associated to remaining allocated nvme buffers */
4110         lpfc_ncmd = NULL;
4111         lpfc_ncmd_next = NULL;
4112         phba->sli4_hba.io_xri_cnt = cnt;
4113         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4114                                  &io_sgl_list, list) {
4115                 lxri = lpfc_sli4_next_xritag(phba);
4116                 if (lxri == NO_XRI) {
4117                         lpfc_printf_log(phba, KERN_ERR,
4118                                         LOG_TRACE_EVENT,
4119                                         "6075 Failed to allocate xri for "
4120                                         "nvme buffer\n");
4121                         rc = -ENOMEM;
4122                         goto out_free_mem;
4123                 }
4124                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4125                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4126         }
4127         cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
4128         return 0;
4129
4130 out_free_mem:
4131         lpfc_io_free(phba);
4132         return rc;
4133 }
4134
4135 /**
4136  * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4137  * @phba: Pointer to lpfc hba data structure.
4138  * @num_to_alloc: The requested number of buffers to allocate.
4139  *
4140  * This routine allocates nvme buffers for device with SLI-4 interface spec,
4141  * the nvme buffer contains all the necessary information needed to initiate
4142  * an I/O. After allocating up to @num_to_allocate IO buffers and put
4143  * them on a list, it post them to the port by using SGL block post.
4144  *
4145  * Return codes:
4146  *   int - number of IO buffers that were allocated and posted.
4147  *   0 = failure, less than num_to_alloc is a partial failure.
4148  **/
4149 int
4150 lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4151 {
4152         struct lpfc_io_buf *lpfc_ncmd;
4153         struct lpfc_iocbq *pwqeq;
4154         uint16_t iotag, lxri = 0;
4155         int bcnt, num_posted;
4156         LIST_HEAD(prep_nblist);
4157         LIST_HEAD(post_nblist);
4158         LIST_HEAD(nvme_nblist);
4159
4160         phba->sli4_hba.io_xri_cnt = 0;
4161         for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4162                 lpfc_ncmd = kzalloc(sizeof(*lpfc_ncmd), GFP_KERNEL);
4163                 if (!lpfc_ncmd)
4164                         break;
4165                 /*
4166                  * Get memory from the pci pool to map the virt space to
4167                  * pci bus space for an I/O. The DMA buffer includes the
4168                  * number of SGE's necessary to support the sg_tablesize.
4169                  */
4170                 lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool,
4171                                                   GFP_KERNEL,
4172                                                   &lpfc_ncmd->dma_handle);
4173                 if (!lpfc_ncmd->data) {
4174                         kfree(lpfc_ncmd);
4175                         break;
4176                 }
4177
4178                 if (phba->cfg_xpsgl && !phba->nvmet_support) {
4179                         INIT_LIST_HEAD(&lpfc_ncmd->dma_sgl_xtra_list);
4180                 } else {
4181                         /*
4182                          * 4K Page alignment is CRITICAL to BlockGuard, double
4183                          * check to be sure.
4184                          */
4185                         if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4186                             (((unsigned long)(lpfc_ncmd->data) &
4187                             (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4188                                 lpfc_printf_log(phba, KERN_ERR,
4189                                                 LOG_TRACE_EVENT,
4190                                                 "3369 Memory alignment err: "
4191                                                 "addr=%lx\n",
4192                                                 (unsigned long)lpfc_ncmd->data);
4193                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4194                                               lpfc_ncmd->data,
4195                                               lpfc_ncmd->dma_handle);
4196                                 kfree(lpfc_ncmd);
4197                                 break;
4198                         }
4199                 }
4200
4201                 INIT_LIST_HEAD(&lpfc_ncmd->dma_cmd_rsp_list);
4202
4203                 lxri = lpfc_sli4_next_xritag(phba);
4204                 if (lxri == NO_XRI) {
4205                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4206                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4207                         kfree(lpfc_ncmd);
4208                         break;
4209                 }
4210                 pwqeq = &lpfc_ncmd->cur_iocbq;
4211
4212                 /* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4213                 iotag = lpfc_sli_next_iotag(phba, pwqeq);
4214                 if (iotag == 0) {
4215                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4216                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4217                         kfree(lpfc_ncmd);
4218                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4219                                         "6121 Failed to allocate IOTAG for"
4220                                         " XRI:0x%x\n", lxri);
4221                         lpfc_sli4_free_xri(phba, lxri);
4222                         break;
4223                 }
4224                 pwqeq->sli4_lxritag = lxri;
4225                 pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4226                 pwqeq->context1 = lpfc_ncmd;
4227
4228                 /* Initialize local short-hand pointers. */
4229                 lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4230                 lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4231                 lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd;
4232                 spin_lock_init(&lpfc_ncmd->buf_lock);
4233
4234                 /* add the nvme buffer to a post list */
4235                 list_add_tail(&lpfc_ncmd->list, &post_nblist);
4236                 phba->sli4_hba.io_xri_cnt++;
4237         }
4238         lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4239                         "6114 Allocate %d out of %d requested new NVME "
4240                         "buffers\n", bcnt, num_to_alloc);
4241
4242         /* post the list of nvme buffer sgls to port if available */
4243         if (!list_empty(&post_nblist))
4244                 num_posted = lpfc_sli4_post_io_sgl_list(
4245                                 phba, &post_nblist, bcnt);
4246         else
4247                 num_posted = 0;
4248
4249         return num_posted;
4250 }
4251
4252 static uint64_t
4253 lpfc_get_wwpn(struct lpfc_hba *phba)
4254 {
4255         uint64_t wwn;
4256         int rc;
4257         LPFC_MBOXQ_t *mboxq;
4258         MAILBOX_t *mb;
4259
4260         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4261                                                 GFP_KERNEL);
4262         if (!mboxq)
4263                 return (uint64_t)-1;
4264
4265         /* First get WWN of HBA instance */
4266         lpfc_read_nv(phba, mboxq);
4267         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4268         if (rc != MBX_SUCCESS) {
4269                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4270                                 "6019 Mailbox failed , mbxCmd x%x "
4271                                 "READ_NV, mbxStatus x%x\n",
4272                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4273                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4274                 mempool_free(mboxq, phba->mbox_mem_pool);
4275                 return (uint64_t) -1;
4276         }
4277         mb = &mboxq->u.mb;
4278         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4279         /* wwn is WWPN of HBA instance */
4280         mempool_free(mboxq, phba->mbox_mem_pool);
4281         if (phba->sli_rev == LPFC_SLI_REV4)
4282                 return be64_to_cpu(wwn);
4283         else
4284                 return rol64(wwn, 32);
4285 }
4286
4287 /**
4288  * lpfc_create_port - Create an FC port
4289  * @phba: pointer to lpfc hba data structure.
4290  * @instance: a unique integer ID to this FC port.
4291  * @dev: pointer to the device data structure.
4292  *
4293  * This routine creates a FC port for the upper layer protocol. The FC port
4294  * can be created on top of either a physical port or a virtual port provided
4295  * by the HBA. This routine also allocates a SCSI host data structure (shost)
4296  * and associates the FC port created before adding the shost into the SCSI
4297  * layer.
4298  *
4299  * Return codes
4300  *   @vport - pointer to the virtual N_Port data structure.
4301  *   NULL - port create failed.
4302  **/
4303 struct lpfc_vport *
4304 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4305 {
4306         struct lpfc_vport *vport;
4307         struct Scsi_Host  *shost = NULL;
4308         struct scsi_host_template *template;
4309         int error = 0;
4310         int i;
4311         uint64_t wwn;
4312         bool use_no_reset_hba = false;
4313         int rc;
4314
4315         if (lpfc_no_hba_reset_cnt) {
4316                 if (phba->sli_rev < LPFC_SLI_REV4 &&
4317                     dev == &phba->pcidev->dev) {
4318                         /* Reset the port first */
4319                         lpfc_sli_brdrestart(phba);
4320                         rc = lpfc_sli_chipset_init(phba);
4321                         if (rc)
4322                                 return NULL;
4323                 }
4324                 wwn = lpfc_get_wwpn(phba);
4325         }
4326
4327         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4328                 if (wwn == lpfc_no_hba_reset[i]) {
4329                         lpfc_printf_log(phba, KERN_ERR,
4330                                         LOG_TRACE_EVENT,
4331                                         "6020 Setting use_no_reset port=%llx\n",
4332                                         wwn);
4333                         use_no_reset_hba = true;
4334                         break;
4335                 }
4336         }
4337
4338         /* Seed template for SCSI host registration */
4339         if (dev == &phba->pcidev->dev) {
4340                 template = &phba->port_template;
4341
4342                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4343                         /* Seed physical port template */
4344                         memcpy(template, &lpfc_template, sizeof(*template));
4345
4346                         if (use_no_reset_hba) {
4347                                 /* template is for a no reset SCSI Host */
4348                                 template->max_sectors = 0xffff;
4349                                 template->eh_host_reset_handler = NULL;
4350                         }
4351
4352                         /* Template for all vports this physical port creates */
4353                         memcpy(&phba->vport_template, &lpfc_template,
4354                                sizeof(*template));
4355                         phba->vport_template.max_sectors = 0xffff;
4356                         phba->vport_template.shost_attrs = lpfc_vport_attrs;
4357                         phba->vport_template.eh_bus_reset_handler = NULL;
4358                         phba->vport_template.eh_host_reset_handler = NULL;
4359                         phba->vport_template.vendor_id = 0;
4360
4361                         /* Initialize the host templates with updated value */
4362                         if (phba->sli_rev == LPFC_SLI_REV4) {
4363                                 template->sg_tablesize = phba->cfg_scsi_seg_cnt;
4364                                 phba->vport_template.sg_tablesize =
4365                                         phba->cfg_scsi_seg_cnt;
4366                         } else {
4367                                 template->sg_tablesize = phba->cfg_sg_seg_cnt;
4368                                 phba->vport_template.sg_tablesize =
4369                                         phba->cfg_sg_seg_cnt;
4370                         }
4371
4372                 } else {
4373                         /* NVMET is for physical port only */
4374                         memcpy(template, &lpfc_template_nvme,
4375                                sizeof(*template));
4376                 }
4377         } else {
4378                 template = &phba->vport_template;
4379         }
4380
4381         shost = scsi_host_alloc(template, sizeof(struct lpfc_vport));
4382         if (!shost)
4383                 goto out;
4384
4385         vport = (struct lpfc_vport *) shost->hostdata;
4386         vport->phba = phba;
4387         vport->load_flag |= FC_LOADING;
4388         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4389         vport->fc_rscn_flush = 0;
4390         lpfc_get_vport_cfgparam(vport);
4391
4392         /* Adjust value in vport */
4393         vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4394
4395         shost->unique_id = instance;
4396         shost->max_id = LPFC_MAX_TARGET;
4397         shost->max_lun = vport->cfg_max_luns;
4398         shost->this_id = -1;
4399         shost->max_cmd_len = 16;
4400
4401         if (phba->sli_rev == LPFC_SLI_REV4) {
4402                 if (!phba->cfg_fcp_mq_threshold ||
4403                     phba->cfg_fcp_mq_threshold > phba->cfg_hdw_queue)
4404                         phba->cfg_fcp_mq_threshold = phba->cfg_hdw_queue;
4405
4406                 shost->nr_hw_queues = min_t(int, 2 * num_possible_nodes(),
4407                                             phba->cfg_fcp_mq_threshold);
4408
4409                 shost->dma_boundary =
4410                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4411
4412                 if (phba->cfg_xpsgl && !phba->nvmet_support)
4413                         shost->sg_tablesize = LPFC_MAX_SG_TABLESIZE;
4414                 else
4415                         shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
4416         } else
4417                 /* SLI-3 has a limited number of hardware queues (3),
4418                  * thus there is only one for FCP processing.
4419                  */
4420                 shost->nr_hw_queues = 1;
4421
4422         /*
4423          * Set initial can_queue value since 0 is no longer supported and
4424          * scsi_add_host will fail. This will be adjusted later based on the
4425          * max xri value determined in hba setup.
4426          */
4427         shost->can_queue = phba->cfg_hba_queue_depth - 10;
4428         if (dev != &phba->pcidev->dev) {
4429                 shost->transportt = lpfc_vport_transport_template;
4430                 vport->port_type = LPFC_NPIV_PORT;
4431         } else {
4432                 shost->transportt = lpfc_transport_template;
4433                 vport->port_type = LPFC_PHYSICAL_PORT;
4434         }
4435
4436         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4437                         "9081 CreatePort TMPLATE type %x TBLsize %d "
4438                         "SEGcnt %d/%d\n",
4439                         vport->port_type, shost->sg_tablesize,
4440                         phba->cfg_scsi_seg_cnt, phba->cfg_sg_seg_cnt);
4441
4442         /* Initialize all internally managed lists. */
4443         INIT_LIST_HEAD(&vport->fc_nodes);
4444         INIT_LIST_HEAD(&vport->rcv_buffer_list);
4445         spin_lock_init(&vport->work_port_lock);
4446
4447         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4448
4449         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4450
4451         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4452
4453         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4454                 lpfc_setup_bg(phba, shost);
4455
4456         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4457         if (error)
4458                 goto out_put_shost;
4459
4460         spin_lock_irq(&phba->port_list_lock);
4461         list_add_tail(&vport->listentry, &phba->port_list);
4462         spin_unlock_irq(&phba->port_list_lock);
4463         return vport;
4464
4465 out_put_shost:
4466         scsi_host_put(shost);
4467 out:
4468         return NULL;
4469 }
4470
4471 /**
4472  * destroy_port -  destroy an FC port
4473  * @vport: pointer to an lpfc virtual N_Port data structure.
4474  *
4475  * This routine destroys a FC port from the upper layer protocol. All the
4476  * resources associated with the port are released.
4477  **/
4478 void
4479 destroy_port(struct lpfc_vport *vport)
4480 {
4481         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4482         struct lpfc_hba  *phba = vport->phba;
4483
4484         lpfc_debugfs_terminate(vport);
4485         fc_remove_host(shost);
4486         scsi_remove_host(shost);
4487
4488         spin_lock_irq(&phba->port_list_lock);
4489         list_del_init(&vport->listentry);
4490         spin_unlock_irq(&phba->port_list_lock);
4491
4492         lpfc_cleanup(vport);
4493         return;
4494 }
4495
4496 /**
4497  * lpfc_get_instance - Get a unique integer ID
4498  *
4499  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4500  * uses the kernel idr facility to perform the task.
4501  *
4502  * Return codes:
4503  *   instance - a unique integer ID allocated as the new instance.
4504  *   -1 - lpfc get instance failed.
4505  **/
4506 int
4507 lpfc_get_instance(void)
4508 {
4509         int ret;
4510
4511         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4512         return ret < 0 ? -1 : ret;
4513 }
4514
4515 /**
4516  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4517  * @shost: pointer to SCSI host data structure.
4518  * @time: elapsed time of the scan in jiffies.
4519  *
4520  * This routine is called by the SCSI layer with a SCSI host to determine
4521  * whether the scan host is finished.
4522  *
4523  * Note: there is no scan_start function as adapter initialization will have
4524  * asynchronously kicked off the link initialization.
4525  *
4526  * Return codes
4527  *   0 - SCSI host scan is not over yet.
4528  *   1 - SCSI host scan is over.
4529  **/
4530 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4531 {
4532         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4533         struct lpfc_hba   *phba = vport->phba;
4534         int stat = 0;
4535
4536         spin_lock_irq(shost->host_lock);
4537
4538         if (vport->load_flag & FC_UNLOADING) {
4539                 stat = 1;
4540                 goto finished;
4541         }
4542         if (time >= msecs_to_jiffies(30 * 1000)) {
4543                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4544                                 "0461 Scanning longer than 30 "
4545                                 "seconds.  Continuing initialization\n");
4546                 stat = 1;
4547                 goto finished;
4548         }
4549         if (time >= msecs_to_jiffies(15 * 1000) &&
4550             phba->link_state <= LPFC_LINK_DOWN) {
4551                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4552                                 "0465 Link down longer than 15 "
4553                                 "seconds.  Continuing initialization\n");
4554                 stat = 1;
4555                 goto finished;
4556         }
4557
4558         if (vport->port_state != LPFC_VPORT_READY)
4559                 goto finished;
4560         if (vport->num_disc_nodes || vport->fc_prli_sent)
4561                 goto finished;
4562         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4563                 goto finished;
4564         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4565                 goto finished;
4566
4567         stat = 1;
4568
4569 finished:
4570         spin_unlock_irq(shost->host_lock);
4571         return stat;
4572 }
4573
4574 static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4575 {
4576         struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4577         struct lpfc_hba   *phba = vport->phba;
4578
4579         fc_host_supported_speeds(shost) = 0;
4580         /*
4581          * Avoid reporting supported link speed for FCoE as it can't be
4582          * controlled via FCoE.
4583          */
4584         if (phba->hba_flag & HBA_FCOE_MODE)
4585                 return;
4586
4587         if (phba->lmt & LMT_128Gb)
4588                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4589         if (phba->lmt & LMT_64Gb)
4590                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4591         if (phba->lmt & LMT_32Gb)
4592                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4593         if (phba->lmt & LMT_16Gb)
4594                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4595         if (phba->lmt & LMT_10Gb)
4596                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4597         if (phba->lmt & LMT_8Gb)
4598                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4599         if (phba->lmt & LMT_4Gb)
4600                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4601         if (phba->lmt & LMT_2Gb)
4602                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4603         if (phba->lmt & LMT_1Gb)
4604                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4605 }
4606
4607 /**
4608  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4609  * @shost: pointer to SCSI host data structure.
4610  *
4611  * This routine initializes a given SCSI host attributes on a FC port. The
4612  * SCSI host can be either on top of a physical port or a virtual port.
4613  **/
4614 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4615 {
4616         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4617         struct lpfc_hba   *phba = vport->phba;
4618         /*
4619          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4620          */
4621
4622         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4623         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4624         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4625
4626         memset(fc_host_supported_fc4s(shost), 0,
4627                sizeof(fc_host_supported_fc4s(shost)));
4628         fc_host_supported_fc4s(shost)[2] = 1;
4629         fc_host_supported_fc4s(shost)[7] = 1;
4630
4631         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4632                                  sizeof fc_host_symbolic_name(shost));
4633
4634         lpfc_host_supported_speeds_set(shost);
4635
4636         fc_host_maxframe_size(shost) =
4637                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4638                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4639
4640         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4641
4642         /* This value is also unchanging */
4643         memset(fc_host_active_fc4s(shost), 0,
4644                sizeof(fc_host_active_fc4s(shost)));
4645         fc_host_active_fc4s(shost)[2] = 1;
4646         fc_host_active_fc4s(shost)[7] = 1;
4647
4648         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4649         spin_lock_irq(shost->host_lock);
4650         vport->load_flag &= ~FC_LOADING;
4651         spin_unlock_irq(shost->host_lock);
4652 }
4653
4654 /**
4655  * lpfc_stop_port_s3 - Stop SLI3 device port
4656  * @phba: pointer to lpfc hba data structure.
4657  *
4658  * This routine is invoked to stop an SLI3 device port, it stops the device
4659  * from generating interrupts and stops the device driver's timers for the
4660  * device.
4661  **/
4662 static void
4663 lpfc_stop_port_s3(struct lpfc_hba *phba)
4664 {
4665         /* Clear all interrupt enable conditions */
4666         writel(0, phba->HCregaddr);
4667         readl(phba->HCregaddr); /* flush */
4668         /* Clear all pending interrupts */
4669         writel(0xffffffff, phba->HAregaddr);
4670         readl(phba->HAregaddr); /* flush */
4671
4672         /* Reset some HBA SLI setup states */
4673         lpfc_stop_hba_timers(phba);
4674         phba->pport->work_port_events = 0;
4675 }
4676
4677 /**
4678  * lpfc_stop_port_s4 - Stop SLI4 device port
4679  * @phba: pointer to lpfc hba data structure.
4680  *
4681  * This routine is invoked to stop an SLI4 device port, it stops the device
4682  * from generating interrupts and stops the device driver's timers for the
4683  * device.
4684  **/
4685 static void
4686 lpfc_stop_port_s4(struct lpfc_hba *phba)
4687 {
4688         /* Reset some HBA SLI4 setup states */
4689         lpfc_stop_hba_timers(phba);
4690         if (phba->pport)
4691                 phba->pport->work_port_events = 0;
4692         phba->sli4_hba.intr_enable = 0;
4693 }
4694
4695 /**
4696  * lpfc_stop_port - Wrapper function for stopping hba port
4697  * @phba: Pointer to HBA context object.
4698  *
4699  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4700  * the API jump table function pointer from the lpfc_hba struct.
4701  **/
4702 void
4703 lpfc_stop_port(struct lpfc_hba *phba)
4704 {
4705         phba->lpfc_stop_port(phba);
4706
4707         if (phba->wq)
4708                 flush_workqueue(phba->wq);
4709 }
4710
4711 /**
4712  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4713  * @phba: Pointer to hba for which this call is being executed.
4714  *
4715  * This routine starts the timer waiting for the FCF rediscovery to complete.
4716  **/
4717 void
4718 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4719 {
4720         unsigned long fcf_redisc_wait_tmo =
4721                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4722         /* Start fcf rediscovery wait period timer */
4723         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4724         spin_lock_irq(&phba->hbalock);
4725         /* Allow action to new fcf asynchronous event */
4726         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4727         /* Mark the FCF rediscovery pending state */
4728         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4729         spin_unlock_irq(&phba->hbalock);
4730 }
4731
4732 /**
4733  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4734  * @t: Timer context used to obtain the pointer to lpfc hba data structure.
4735  *
4736  * This routine is invoked when waiting for FCF table rediscover has been
4737  * timed out. If new FCF record(s) has (have) been discovered during the
4738  * wait period, a new FCF event shall be added to the FCOE async event
4739  * list, and then worker thread shall be waked up for processing from the
4740  * worker thread context.
4741  **/
4742 static void
4743 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4744 {
4745         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4746
4747         /* Don't send FCF rediscovery event if timer cancelled */
4748         spin_lock_irq(&phba->hbalock);
4749         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4750                 spin_unlock_irq(&phba->hbalock);
4751                 return;
4752         }
4753         /* Clear FCF rediscovery timer pending flag */
4754         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4755         /* FCF rediscovery event to worker thread */
4756         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4757         spin_unlock_irq(&phba->hbalock);
4758         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4759                         "2776 FCF rediscover quiescent timer expired\n");
4760         /* wake up worker thread */
4761         lpfc_worker_wake_up(phba);
4762 }
4763
4764 /**
4765  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4766  * @phba: pointer to lpfc hba data structure.
4767  * @acqe_link: pointer to the async link completion queue entry.
4768  *
4769  * This routine is to parse the SLI4 link-attention link fault code.
4770  **/
4771 static void
4772 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4773                            struct lpfc_acqe_link *acqe_link)
4774 {
4775         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4776         case LPFC_ASYNC_LINK_FAULT_NONE:
4777         case LPFC_ASYNC_LINK_FAULT_LOCAL:
4778         case LPFC_ASYNC_LINK_FAULT_REMOTE:
4779         case LPFC_ASYNC_LINK_FAULT_LR_LRR:
4780                 break;
4781         default:
4782                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4783                                 "0398 Unknown link fault code: x%x\n",
4784                                 bf_get(lpfc_acqe_link_fault, acqe_link));
4785                 break;
4786         }
4787 }
4788
4789 /**
4790  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4791  * @phba: pointer to lpfc hba data structure.
4792  * @acqe_link: pointer to the async link completion queue entry.
4793  *
4794  * This routine is to parse the SLI4 link attention type and translate it
4795  * into the base driver's link attention type coding.
4796  *
4797  * Return: Link attention type in terms of base driver's coding.
4798  **/
4799 static uint8_t
4800 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4801                           struct lpfc_acqe_link *acqe_link)
4802 {
4803         uint8_t att_type;
4804
4805         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4806         case LPFC_ASYNC_LINK_STATUS_DOWN:
4807         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4808                 att_type = LPFC_ATT_LINK_DOWN;
4809                 break;
4810         case LPFC_ASYNC_LINK_STATUS_UP:
4811                 /* Ignore physical link up events - wait for logical link up */
4812                 att_type = LPFC_ATT_RESERVED;
4813                 break;
4814         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4815                 att_type = LPFC_ATT_LINK_UP;
4816                 break;
4817         default:
4818                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4819                                 "0399 Invalid link attention type: x%x\n",
4820                                 bf_get(lpfc_acqe_link_status, acqe_link));
4821                 att_type = LPFC_ATT_RESERVED;
4822                 break;
4823         }
4824         return att_type;
4825 }
4826
4827 /**
4828  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4829  * @phba: pointer to lpfc hba data structure.
4830  *
4831  * This routine is to get an SLI3 FC port's link speed in Mbps.
4832  *
4833  * Return: link speed in terms of Mbps.
4834  **/
4835 uint32_t
4836 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4837 {
4838         uint32_t link_speed;
4839
4840         if (!lpfc_is_link_up(phba))
4841                 return 0;
4842
4843         if (phba->sli_rev <= LPFC_SLI_REV3) {
4844                 switch (phba->fc_linkspeed) {
4845                 case LPFC_LINK_SPEED_1GHZ:
4846                         link_speed = 1000;
4847                         break;
4848                 case LPFC_LINK_SPEED_2GHZ:
4849                         link_speed = 2000;
4850                         break;
4851                 case LPFC_LINK_SPEED_4GHZ:
4852                         link_speed = 4000;
4853                         break;
4854                 case LPFC_LINK_SPEED_8GHZ:
4855                         link_speed = 8000;
4856                         break;
4857                 case LPFC_LINK_SPEED_10GHZ:
4858                         link_speed = 10000;
4859                         break;
4860                 case LPFC_LINK_SPEED_16GHZ:
4861                         link_speed = 16000;
4862                         break;
4863                 default:
4864                         link_speed = 0;
4865                 }
4866         } else {
4867                 if (phba->sli4_hba.link_state.logical_speed)
4868                         link_speed =
4869                               phba->sli4_hba.link_state.logical_speed;
4870                 else
4871                         link_speed = phba->sli4_hba.link_state.speed;
4872         }
4873         return link_speed;
4874 }
4875
4876 /**
4877  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4878  * @phba: pointer to lpfc hba data structure.
4879  * @evt_code: asynchronous event code.
4880  * @speed_code: asynchronous event link speed code.
4881  *
4882  * This routine is to parse the giving SLI4 async event link speed code into
4883  * value of Mbps for the link speed.
4884  *
4885  * Return: link speed in terms of Mbps.
4886  **/
4887 static uint32_t
4888 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4889                            uint8_t speed_code)
4890 {
4891         uint32_t port_speed;
4892
4893         switch (evt_code) {
4894         case LPFC_TRAILER_CODE_LINK:
4895                 switch (speed_code) {
4896                 case LPFC_ASYNC_LINK_SPEED_ZERO:
4897                         port_speed = 0;
4898                         break;
4899                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4900                         port_speed = 10;
4901                         break;
4902                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4903                         port_speed = 100;
4904                         break;
4905                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4906                         port_speed = 1000;
4907                         break;
4908                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4909                         port_speed = 10000;
4910                         break;
4911                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4912                         port_speed = 20000;
4913                         break;
4914                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4915                         port_speed = 25000;
4916                         break;
4917                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4918                         port_speed = 40000;
4919                         break;
4920                 case LPFC_ASYNC_LINK_SPEED_100GBPS:
4921                         port_speed = 100000;
4922                         break;
4923                 default:
4924                         port_speed = 0;
4925                 }
4926                 break;
4927         case LPFC_TRAILER_CODE_FC:
4928                 switch (speed_code) {
4929                 case LPFC_FC_LA_SPEED_UNKNOWN:
4930                         port_speed = 0;
4931                         break;
4932                 case LPFC_FC_LA_SPEED_1G:
4933                         port_speed = 1000;
4934                         break;
4935                 case LPFC_FC_LA_SPEED_2G:
4936                         port_speed = 2000;
4937                         break;
4938                 case LPFC_FC_LA_SPEED_4G:
4939                         port_speed = 4000;
4940                         break;
4941                 case LPFC_FC_LA_SPEED_8G:
4942                         port_speed = 8000;
4943                         break;
4944                 case LPFC_FC_LA_SPEED_10G:
4945                         port_speed = 10000;
4946                         break;
4947                 case LPFC_FC_LA_SPEED_16G:
4948                         port_speed = 16000;
4949                         break;
4950                 case LPFC_FC_LA_SPEED_32G:
4951                         port_speed = 32000;
4952                         break;
4953                 case LPFC_FC_LA_SPEED_64G:
4954                         port_speed = 64000;
4955                         break;
4956                 case LPFC_FC_LA_SPEED_128G:
4957                         port_speed = 128000;
4958                         break;
4959                 default:
4960                         port_speed = 0;
4961                 }
4962                 break;
4963         default:
4964                 port_speed = 0;
4965         }
4966         return port_speed;
4967 }
4968
4969 /**
4970  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4971  * @phba: pointer to lpfc hba data structure.
4972  * @acqe_link: pointer to the async link completion queue entry.
4973  *
4974  * This routine is to handle the SLI4 asynchronous FCoE link event.
4975  **/
4976 static void
4977 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4978                          struct lpfc_acqe_link *acqe_link)
4979 {
4980         struct lpfc_dmabuf *mp;
4981         LPFC_MBOXQ_t *pmb;
4982         MAILBOX_t *mb;
4983         struct lpfc_mbx_read_top *la;
4984         uint8_t att_type;
4985         int rc;
4986
4987         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4988         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4989                 return;
4990         phba->fcoe_eventtag = acqe_link->event_tag;
4991         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4992         if (!pmb) {
4993                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4994                                 "0395 The mboxq allocation failed\n");
4995                 return;
4996         }
4997         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4998         if (!mp) {
4999                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5000                                 "0396 The lpfc_dmabuf allocation failed\n");
5001                 goto out_free_pmb;
5002         }
5003         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5004         if (!mp->virt) {
5005                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5006                                 "0397 The mbuf allocation failed\n");
5007                 goto out_free_dmabuf;
5008         }
5009
5010         /* Cleanup any outstanding ELS commands */
5011         lpfc_els_flush_all_cmd(phba);
5012
5013         /* Block ELS IOCBs until we have done process link event */
5014         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5015
5016         /* Update link event statistics */
5017         phba->sli.slistat.link_event++;
5018
5019         /* Create lpfc_handle_latt mailbox command from link ACQE */
5020         lpfc_read_topology(phba, pmb, mp);
5021         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5022         pmb->vport = phba->pport;
5023
5024         /* Keep the link status for extra SLI4 state machine reference */
5025         phba->sli4_hba.link_state.speed =
5026                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
5027                                 bf_get(lpfc_acqe_link_speed, acqe_link));
5028         phba->sli4_hba.link_state.duplex =
5029                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
5030         phba->sli4_hba.link_state.status =
5031                                 bf_get(lpfc_acqe_link_status, acqe_link);
5032         phba->sli4_hba.link_state.type =
5033                                 bf_get(lpfc_acqe_link_type, acqe_link);
5034         phba->sli4_hba.link_state.number =
5035                                 bf_get(lpfc_acqe_link_number, acqe_link);
5036         phba->sli4_hba.link_state.fault =
5037                                 bf_get(lpfc_acqe_link_fault, acqe_link);
5038         phba->sli4_hba.link_state.logical_speed =
5039                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
5040
5041         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5042                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
5043                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
5044                         "Logical speed:%dMbps Fault:%d\n",
5045                         phba->sli4_hba.link_state.speed,
5046                         phba->sli4_hba.link_state.topology,
5047                         phba->sli4_hba.link_state.status,
5048                         phba->sli4_hba.link_state.type,
5049                         phba->sli4_hba.link_state.number,
5050                         phba->sli4_hba.link_state.logical_speed,
5051                         phba->sli4_hba.link_state.fault);
5052         /*
5053          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
5054          * topology info. Note: Optional for non FC-AL ports.
5055          */
5056         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
5057                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5058                 if (rc == MBX_NOT_FINISHED)
5059                         goto out_free_dmabuf;
5060                 return;
5061         }
5062         /*
5063          * For FCoE Mode: fill in all the topology information we need and call
5064          * the READ_TOPOLOGY completion routine to continue without actually
5065          * sending the READ_TOPOLOGY mailbox command to the port.
5066          */
5067         /* Initialize completion status */
5068         mb = &pmb->u.mb;
5069         mb->mbxStatus = MBX_SUCCESS;
5070
5071         /* Parse port fault information field */
5072         lpfc_sli4_parse_latt_fault(phba, acqe_link);
5073
5074         /* Parse and translate link attention fields */
5075         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
5076         la->eventTag = acqe_link->event_tag;
5077         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
5078         bf_set(lpfc_mbx_read_top_link_spd, la,
5079                (bf_get(lpfc_acqe_link_speed, acqe_link)));
5080
5081         /* Fake the the following irrelvant fields */
5082         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
5083         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
5084         bf_set(lpfc_mbx_read_top_il, la, 0);
5085         bf_set(lpfc_mbx_read_top_pb, la, 0);
5086         bf_set(lpfc_mbx_read_top_fa, la, 0);
5087         bf_set(lpfc_mbx_read_top_mm, la, 0);
5088
5089         /* Invoke the lpfc_handle_latt mailbox command callback function */
5090         lpfc_mbx_cmpl_read_topology(phba, pmb);
5091
5092         return;
5093
5094 out_free_dmabuf:
5095         kfree(mp);
5096 out_free_pmb:
5097         mempool_free(pmb, phba->mbox_mem_pool);
5098 }
5099
5100 /**
5101  * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
5102  * topology.
5103  * @phba: pointer to lpfc hba data structure.
5104  * @speed_code: asynchronous event link speed code.
5105  *
5106  * This routine is to parse the giving SLI4 async event link speed code into
5107  * value of Read topology link speed.
5108  *
5109  * Return: link speed in terms of Read topology.
5110  **/
5111 static uint8_t
5112 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
5113 {
5114         uint8_t port_speed;
5115
5116         switch (speed_code) {
5117         case LPFC_FC_LA_SPEED_1G:
5118                 port_speed = LPFC_LINK_SPEED_1GHZ;
5119                 break;
5120         case LPFC_FC_LA_SPEED_2G:
5121                 port_speed = LPFC_LINK_SPEED_2GHZ;
5122                 break;
5123         case LPFC_FC_LA_SPEED_4G:
5124                 port_speed = LPFC_LINK_SPEED_4GHZ;
5125                 break;
5126         case LPFC_FC_LA_SPEED_8G:
5127                 port_speed = LPFC_LINK_SPEED_8GHZ;
5128                 break;
5129         case LPFC_FC_LA_SPEED_16G:
5130                 port_speed = LPFC_LINK_SPEED_16GHZ;
5131                 break;
5132         case LPFC_FC_LA_SPEED_32G:
5133                 port_speed = LPFC_LINK_SPEED_32GHZ;
5134                 break;
5135         case LPFC_FC_LA_SPEED_64G:
5136                 port_speed = LPFC_LINK_SPEED_64GHZ;
5137                 break;
5138         case LPFC_FC_LA_SPEED_128G:
5139                 port_speed = LPFC_LINK_SPEED_128GHZ;
5140                 break;
5141         case LPFC_FC_LA_SPEED_256G:
5142                 port_speed = LPFC_LINK_SPEED_256GHZ;
5143                 break;
5144         default:
5145                 port_speed = 0;
5146                 break;
5147         }
5148
5149         return port_speed;
5150 }
5151
5152 #define trunk_link_status(__idx)\
5153         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5154                ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
5155                 "Link up" : "Link down") : "NA"
5156 /* Did port __idx reported an error */
5157 #define trunk_port_fault(__idx)\
5158         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5159                (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
5160
5161 static void
5162 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
5163                               struct lpfc_acqe_fc_la *acqe_fc)
5164 {
5165         uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
5166         uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
5167
5168         phba->sli4_hba.link_state.speed =
5169                 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5170                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5171
5172         phba->sli4_hba.link_state.logical_speed =
5173                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5174         /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
5175         phba->fc_linkspeed =
5176                  lpfc_async_link_speed_to_read_top(
5177                                 phba,
5178                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5179
5180         if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
5181                 phba->trunk_link.link0.state =
5182                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
5183                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5184                 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
5185         }
5186         if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
5187                 phba->trunk_link.link1.state =
5188                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
5189                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5190                 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
5191         }
5192         if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
5193                 phba->trunk_link.link2.state =
5194                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
5195                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5196                 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
5197         }
5198         if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
5199                 phba->trunk_link.link3.state =
5200                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
5201                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5202                 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
5203         }
5204
5205         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5206                         "2910 Async FC Trunking Event - Speed:%d\n"
5207                         "\tLogical speed:%d "
5208                         "port0: %s port1: %s port2: %s port3: %s\n",
5209                         phba->sli4_hba.link_state.speed,
5210                         phba->sli4_hba.link_state.logical_speed,
5211                         trunk_link_status(0), trunk_link_status(1),
5212                         trunk_link_status(2), trunk_link_status(3));
5213
5214         if (port_fault)
5215                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5216                                 "3202 trunk error:0x%x (%s) seen on port0:%s "
5217                                 /*
5218                                  * SLI-4: We have only 0xA error codes
5219                                  * defined as of now. print an appropriate
5220                                  * message in case driver needs to be updated.
5221                                  */
5222                                 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
5223                                 "UNDEFINED. update driver." : trunk_errmsg[err],
5224                                 trunk_port_fault(0), trunk_port_fault(1),
5225                                 trunk_port_fault(2), trunk_port_fault(3));
5226 }
5227
5228
5229 /**
5230  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
5231  * @phba: pointer to lpfc hba data structure.
5232  * @acqe_fc: pointer to the async fc completion queue entry.
5233  *
5234  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
5235  * that the event was received and then issue a read_topology mailbox command so
5236  * that the rest of the driver will treat it the same as SLI3.
5237  **/
5238 static void
5239 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
5240 {
5241         struct lpfc_dmabuf *mp;
5242         LPFC_MBOXQ_t *pmb;
5243         MAILBOX_t *mb;
5244         struct lpfc_mbx_read_top *la;
5245         int rc;
5246
5247         if (bf_get(lpfc_trailer_type, acqe_fc) !=
5248             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
5249                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5250                                 "2895 Non FC link Event detected.(%d)\n",
5251                                 bf_get(lpfc_trailer_type, acqe_fc));
5252                 return;
5253         }
5254
5255         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5256             LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
5257                 lpfc_update_trunk_link_status(phba, acqe_fc);
5258                 return;
5259         }
5260
5261         /* Keep the link status for extra SLI4 state machine reference */
5262         phba->sli4_hba.link_state.speed =
5263                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5264                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5265         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
5266         phba->sli4_hba.link_state.topology =
5267                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
5268         phba->sli4_hba.link_state.status =
5269                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
5270         phba->sli4_hba.link_state.type =
5271                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
5272         phba->sli4_hba.link_state.number =
5273                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
5274         phba->sli4_hba.link_state.fault =
5275                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
5276
5277         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5278             LPFC_FC_LA_TYPE_LINK_DOWN)
5279                 phba->sli4_hba.link_state.logical_speed = 0;
5280         else if (!phba->sli4_hba.conf_trunk)
5281                 phba->sli4_hba.link_state.logical_speed =
5282                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5283
5284         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5285                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
5286                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
5287                         "%dMbps Fault:%d\n",
5288                         phba->sli4_hba.link_state.speed,
5289                         phba->sli4_hba.link_state.topology,
5290                         phba->sli4_hba.link_state.status,
5291                         phba->sli4_hba.link_state.type,
5292                         phba->sli4_hba.link_state.number,
5293                         phba->sli4_hba.link_state.logical_speed,
5294                         phba->sli4_hba.link_state.fault);
5295         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5296         if (!pmb) {
5297                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5298                                 "2897 The mboxq allocation failed\n");
5299                 return;
5300         }
5301         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5302         if (!mp) {
5303                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5304                                 "2898 The lpfc_dmabuf allocation failed\n");
5305                 goto out_free_pmb;
5306         }
5307         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5308         if (!mp->virt) {
5309                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5310                                 "2899 The mbuf allocation failed\n");
5311                 goto out_free_dmabuf;
5312         }
5313
5314         /* Cleanup any outstanding ELS commands */
5315         lpfc_els_flush_all_cmd(phba);
5316
5317         /* Block ELS IOCBs until we have done process link event */
5318         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5319
5320         /* Update link event statistics */
5321         phba->sli.slistat.link_event++;
5322
5323         /* Create lpfc_handle_latt mailbox command from link ACQE */
5324         lpfc_read_topology(phba, pmb, mp);
5325         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5326         pmb->vport = phba->pport;
5327
5328         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
5329                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
5330
5331                 switch (phba->sli4_hba.link_state.status) {
5332                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
5333                         phba->link_flag |= LS_MDS_LINK_DOWN;
5334                         break;
5335                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
5336                         phba->link_flag |= LS_MDS_LOOPBACK;
5337                         break;
5338                 default:
5339                         break;
5340                 }
5341
5342                 /* Initialize completion status */
5343                 mb = &pmb->u.mb;
5344                 mb->mbxStatus = MBX_SUCCESS;
5345
5346                 /* Parse port fault information field */
5347                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
5348
5349                 /* Parse and translate link attention fields */
5350                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
5351                 la->eventTag = acqe_fc->event_tag;
5352
5353                 if (phba->sli4_hba.link_state.status ==
5354                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
5355                         bf_set(lpfc_mbx_read_top_att_type, la,
5356                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
5357                 } else {
5358                         bf_set(lpfc_mbx_read_top_att_type, la,
5359                                LPFC_FC_LA_TYPE_LINK_DOWN);
5360                 }
5361                 /* Invoke the mailbox command callback function */
5362                 lpfc_mbx_cmpl_read_topology(phba, pmb);
5363
5364                 return;
5365         }
5366
5367         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5368         if (rc == MBX_NOT_FINISHED)
5369                 goto out_free_dmabuf;
5370         return;
5371
5372 out_free_dmabuf:
5373         kfree(mp);
5374 out_free_pmb:
5375         mempool_free(pmb, phba->mbox_mem_pool);
5376 }
5377
5378 /**
5379  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
5380  * @phba: pointer to lpfc hba data structure.
5381  * @acqe_sli: pointer to the async SLI completion queue entry.
5382  *
5383  * This routine is to handle the SLI4 asynchronous SLI events.
5384  **/
5385 static void
5386 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
5387 {
5388         char port_name;
5389         char message[128];
5390         uint8_t status;
5391         uint8_t evt_type;
5392         uint8_t operational = 0;
5393         struct temp_event temp_event_data;
5394         struct lpfc_acqe_misconfigured_event *misconfigured;
5395         struct Scsi_Host  *shost;
5396         struct lpfc_vport **vports;
5397         int rc, i;
5398
5399         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
5400
5401         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5402                         "2901 Async SLI event - Type:%d, Event Data: x%08x "
5403                         "x%08x x%08x x%08x\n", evt_type,
5404                         acqe_sli->event_data1, acqe_sli->event_data2,
5405                         acqe_sli->reserved, acqe_sli->trailer);
5406
5407         port_name = phba->Port[0];
5408         if (port_name == 0x00)
5409                 port_name = '?'; /* get port name is empty */
5410
5411         switch (evt_type) {
5412         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
5413                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5414                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
5415                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5416
5417                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5418                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
5419                                 acqe_sli->event_data1, port_name);
5420
5421                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
5422                 shost = lpfc_shost_from_vport(phba->pport);
5423                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5424                                           sizeof(temp_event_data),
5425                                           (char *)&temp_event_data,
5426                                           SCSI_NL_VID_TYPE_PCI
5427                                           | PCI_VENDOR_ID_EMULEX);
5428                 break;
5429         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
5430                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5431                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
5432                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5433
5434                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5435                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
5436                                 acqe_sli->event_data1, port_name);
5437
5438                 shost = lpfc_shost_from_vport(phba->pport);
5439                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5440                                           sizeof(temp_event_data),
5441                                           (char *)&temp_event_data,
5442                                           SCSI_NL_VID_TYPE_PCI
5443                                           | PCI_VENDOR_ID_EMULEX);
5444                 break;
5445         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
5446                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
5447                                         &acqe_sli->event_data1;
5448
5449                 /* fetch the status for this port */
5450                 switch (phba->sli4_hba.lnk_info.lnk_no) {
5451                 case LPFC_LINK_NUMBER_0:
5452                         status = bf_get(lpfc_sli_misconfigured_port0_state,
5453                                         &misconfigured->theEvent);
5454                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
5455                                         &misconfigured->theEvent);
5456                         break;
5457                 case LPFC_LINK_NUMBER_1:
5458                         status = bf_get(lpfc_sli_misconfigured_port1_state,
5459                                         &misconfigured->theEvent);
5460                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
5461                                         &misconfigured->theEvent);
5462                         break;
5463                 case LPFC_LINK_NUMBER_2:
5464                         status = bf_get(lpfc_sli_misconfigured_port2_state,
5465                                         &misconfigured->theEvent);
5466                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
5467                                         &misconfigured->theEvent);
5468                         break;
5469                 case LPFC_LINK_NUMBER_3:
5470                         status = bf_get(lpfc_sli_misconfigured_port3_state,
5471                                         &misconfigured->theEvent);
5472                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
5473                                         &misconfigured->theEvent);
5474                         break;
5475                 default:
5476                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5477                                         "3296 "
5478                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
5479                                         "event: Invalid link %d",
5480                                         phba->sli4_hba.lnk_info.lnk_no);
5481                         return;
5482                 }
5483
5484                 /* Skip if optic state unchanged */
5485                 if (phba->sli4_hba.lnk_info.optic_state == status)
5486                         return;
5487
5488                 switch (status) {
5489                 case LPFC_SLI_EVENT_STATUS_VALID:
5490                         sprintf(message, "Physical Link is functional");
5491                         break;
5492                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
5493                         sprintf(message, "Optics faulted/incorrectly "
5494                                 "installed/not installed - Reseat optics, "
5495                                 "if issue not resolved, replace.");
5496                         break;
5497                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
5498                         sprintf(message,
5499                                 "Optics of two types installed - Remove one "
5500                                 "optic or install matching pair of optics.");
5501                         break;
5502                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
5503                         sprintf(message, "Incompatible optics - Replace with "
5504                                 "compatible optics for card to function.");
5505                         break;
5506                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
5507                         sprintf(message, "Unqualified optics - Replace with "
5508                                 "Avago optics for Warranty and Technical "
5509                                 "Support - Link is%s operational",
5510                                 (operational) ? " not" : "");
5511                         break;
5512                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
5513                         sprintf(message, "Uncertified optics - Replace with "
5514                                 "Avago-certified optics to enable link "
5515                                 "operation - Link is%s operational",
5516                                 (operational) ? " not" : "");
5517                         break;
5518                 default:
5519                         /* firmware is reporting a status we don't know about */
5520                         sprintf(message, "Unknown event status x%02x", status);
5521                         break;
5522                 }
5523
5524                 /* Issue READ_CONFIG mbox command to refresh supported speeds */
5525                 rc = lpfc_sli4_read_config(phba);
5526                 if (rc) {
5527                         phba->lmt = 0;
5528                         lpfc_printf_log(phba, KERN_ERR,
5529                                         LOG_TRACE_EVENT,
5530                                         "3194 Unable to retrieve supported "
5531                                         "speeds, rc = 0x%x\n", rc);
5532                 }
5533                 vports = lpfc_create_vport_work_array(phba);
5534                 if (vports != NULL) {
5535                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5536                                         i++) {
5537                                 shost = lpfc_shost_from_vport(vports[i]);
5538                                 lpfc_host_supported_speeds_set(shost);
5539                         }
5540                 }
5541                 lpfc_destroy_vport_work_array(phba, vports);
5542
5543                 phba->sli4_hba.lnk_info.optic_state = status;
5544                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5545                                 "3176 Port Name %c %s\n", port_name, message);
5546                 break;
5547         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
5548                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5549                                 "3192 Remote DPort Test Initiated - "
5550                                 "Event Data1:x%08x Event Data2: x%08x\n",
5551                                 acqe_sli->event_data1, acqe_sli->event_data2);
5552                 break;
5553         case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN:
5554                 /* Misconfigured WWN. Reports that the SLI Port is configured
5555                  * to use FA-WWN, but the attached device doesn’t support it.
5556                  * No driver action is required.
5557                  * Event Data1 - N.A, Event Data2 - N.A
5558                  */
5559                 lpfc_log_msg(phba, KERN_WARNING, LOG_SLI,
5560                              "2699 Misconfigured FA-WWN - Attached device does "
5561                              "not support FA-WWN\n");
5562                 break;
5563         case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE:
5564                 /* EEPROM failure. No driver action is required */
5565                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5566                              "2518 EEPROM failure - "
5567                              "Event Data1: x%08x Event Data2: x%08x\n",
5568                              acqe_sli->event_data1, acqe_sli->event_data2);
5569                 break;
5570         default:
5571                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5572                                 "3193 Unrecognized SLI event, type: 0x%x",
5573                                 evt_type);
5574                 break;
5575         }
5576 }
5577
5578 /**
5579  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
5580  * @vport: pointer to vport data structure.
5581  *
5582  * This routine is to perform Clear Virtual Link (CVL) on a vport in
5583  * response to a CVL event.
5584  *
5585  * Return the pointer to the ndlp with the vport if successful, otherwise
5586  * return NULL.
5587  **/
5588 static struct lpfc_nodelist *
5589 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
5590 {
5591         struct lpfc_nodelist *ndlp;
5592         struct Scsi_Host *shost;
5593         struct lpfc_hba *phba;
5594
5595         if (!vport)
5596                 return NULL;
5597         phba = vport->phba;
5598         if (!phba)
5599                 return NULL;
5600         ndlp = lpfc_findnode_did(vport, Fabric_DID);
5601         if (!ndlp) {
5602                 /* Cannot find existing Fabric ndlp, so allocate a new one */
5603                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
5604                 if (!ndlp)
5605                         return 0;
5606                 /* Set the node type */
5607                 ndlp->nlp_type |= NLP_FABRIC;
5608                 /* Put ndlp onto node list */
5609                 lpfc_enqueue_node(vport, ndlp);
5610         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
5611                 /* re-setup ndlp without removing from node list */
5612                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
5613                 if (!ndlp)
5614                         return 0;
5615         }
5616         if ((phba->pport->port_state < LPFC_FLOGI) &&
5617                 (phba->pport->port_state != LPFC_VPORT_FAILED))
5618                 return NULL;
5619         /* If virtual link is not yet instantiated ignore CVL */
5620         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
5621                 && (vport->port_state != LPFC_VPORT_FAILED))
5622                 return NULL;
5623         shost = lpfc_shost_from_vport(vport);
5624         if (!shost)
5625                 return NULL;
5626         lpfc_linkdown_port(vport);
5627         lpfc_cleanup_pending_mbox(vport);
5628         spin_lock_irq(shost->host_lock);
5629         vport->fc_flag |= FC_VPORT_CVL_RCVD;
5630         spin_unlock_irq(shost->host_lock);
5631
5632         return ndlp;
5633 }
5634
5635 /**
5636  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
5637  * @phba: pointer to lpfc hba data structure.
5638  *
5639  * This routine is to perform Clear Virtual Link (CVL) on all vports in
5640  * response to a FCF dead event.
5641  **/
5642 static void
5643 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
5644 {
5645         struct lpfc_vport **vports;
5646         int i;
5647
5648         vports = lpfc_create_vport_work_array(phba);
5649         if (vports)
5650                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
5651                         lpfc_sli4_perform_vport_cvl(vports[i]);
5652         lpfc_destroy_vport_work_array(phba, vports);
5653 }
5654
5655 /**
5656  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
5657  * @phba: pointer to lpfc hba data structure.
5658  * @acqe_fip: pointer to the async fcoe completion queue entry.
5659  *
5660  * This routine is to handle the SLI4 asynchronous fcoe event.
5661  **/
5662 static void
5663 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
5664                         struct lpfc_acqe_fip *acqe_fip)
5665 {
5666         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
5667         int rc;
5668         struct lpfc_vport *vport;
5669         struct lpfc_nodelist *ndlp;
5670         struct Scsi_Host  *shost;
5671         int active_vlink_present;
5672         struct lpfc_vport **vports;
5673         int i;
5674
5675         phba->fc_eventTag = acqe_fip->event_tag;
5676         phba->fcoe_eventtag = acqe_fip->event_tag;
5677         switch (event_type) {
5678         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
5679         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
5680                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
5681                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5682                                         "2546 New FCF event, evt_tag:x%x, "
5683                                         "index:x%x\n",
5684                                         acqe_fip->event_tag,
5685                                         acqe_fip->index);
5686                 else
5687                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
5688                                         LOG_DISCOVERY,
5689                                         "2788 FCF param modified event, "
5690                                         "evt_tag:x%x, index:x%x\n",
5691                                         acqe_fip->event_tag,
5692                                         acqe_fip->index);
5693                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5694                         /*
5695                          * During period of FCF discovery, read the FCF
5696                          * table record indexed by the event to update
5697                          * FCF roundrobin failover eligible FCF bmask.
5698                          */
5699                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5700                                         LOG_DISCOVERY,
5701                                         "2779 Read FCF (x%x) for updating "
5702                                         "roundrobin FCF failover bmask\n",
5703                                         acqe_fip->index);
5704                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
5705                 }
5706
5707                 /* If the FCF discovery is in progress, do nothing. */
5708                 spin_lock_irq(&phba->hbalock);
5709                 if (phba->hba_flag & FCF_TS_INPROG) {
5710                         spin_unlock_irq(&phba->hbalock);
5711                         break;
5712                 }
5713                 /* If fast FCF failover rescan event is pending, do nothing */
5714                 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
5715                         spin_unlock_irq(&phba->hbalock);
5716                         break;
5717                 }
5718
5719                 /* If the FCF has been in discovered state, do nothing. */
5720                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
5721                         spin_unlock_irq(&phba->hbalock);
5722                         break;
5723                 }
5724                 spin_unlock_irq(&phba->hbalock);
5725
5726                 /* Otherwise, scan the entire FCF table and re-discover SAN */
5727                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5728                                 "2770 Start FCF table scan per async FCF "
5729                                 "event, evt_tag:x%x, index:x%x\n",
5730                                 acqe_fip->event_tag, acqe_fip->index);
5731                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5732                                                      LPFC_FCOE_FCF_GET_FIRST);
5733                 if (rc)
5734                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5735                                         "2547 Issue FCF scan read FCF mailbox "
5736                                         "command failed (x%x)\n", rc);
5737                 break;
5738
5739         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5740                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5741                                 "2548 FCF Table full count 0x%x tag 0x%x\n",
5742                                 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5743                                 acqe_fip->event_tag);
5744                 break;
5745
5746         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5747                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5748                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5749                                 "2549 FCF (x%x) disconnected from network, "
5750                                  "tag:x%x\n", acqe_fip->index,
5751                                  acqe_fip->event_tag);
5752                 /*
5753                  * If we are in the middle of FCF failover process, clear
5754                  * the corresponding FCF bit in the roundrobin bitmap.
5755                  */
5756                 spin_lock_irq(&phba->hbalock);
5757                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5758                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5759                         spin_unlock_irq(&phba->hbalock);
5760                         /* Update FLOGI FCF failover eligible FCF bmask */
5761                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5762                         break;
5763                 }
5764                 spin_unlock_irq(&phba->hbalock);
5765
5766                 /* If the event is not for currently used fcf do nothing */
5767                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5768                         break;
5769
5770                 /*
5771                  * Otherwise, request the port to rediscover the entire FCF
5772                  * table for a fast recovery from case that the current FCF
5773                  * is no longer valid as we are not in the middle of FCF
5774                  * failover process already.
5775                  */
5776                 spin_lock_irq(&phba->hbalock);
5777                 /* Mark the fast failover process in progress */
5778                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5779                 spin_unlock_irq(&phba->hbalock);
5780
5781                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5782                                 "2771 Start FCF fast failover process due to "
5783                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5784                                 "\n", acqe_fip->event_tag, acqe_fip->index);
5785                 rc = lpfc_sli4_redisc_fcf_table(phba);
5786                 if (rc) {
5787                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5788                                         LOG_TRACE_EVENT,
5789                                         "2772 Issue FCF rediscover mailbox "
5790                                         "command failed, fail through to FCF "
5791                                         "dead event\n");
5792                         spin_lock_irq(&phba->hbalock);
5793                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5794                         spin_unlock_irq(&phba->hbalock);
5795                         /*
5796                          * Last resort will fail over by treating this
5797                          * as a link down to FCF registration.
5798                          */
5799                         lpfc_sli4_fcf_dead_failthrough(phba);
5800                 } else {
5801                         /* Reset FCF roundrobin bmask for new discovery */
5802                         lpfc_sli4_clear_fcf_rr_bmask(phba);
5803                         /*
5804                          * Handling fast FCF failover to a DEAD FCF event is
5805                          * considered equalivant to receiving CVL to all vports.
5806                          */
5807                         lpfc_sli4_perform_all_vport_cvl(phba);
5808                 }
5809                 break;
5810         case LPFC_FIP_EVENT_TYPE_CVL:
5811                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5812                 lpfc_printf_log(phba, KERN_ERR,
5813                                 LOG_TRACE_EVENT,
5814                         "2718 Clear Virtual Link Received for VPI 0x%x"
5815                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5816
5817                 vport = lpfc_find_vport_by_vpid(phba,
5818                                                 acqe_fip->index);
5819                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
5820                 if (!ndlp)
5821                         break;
5822                 active_vlink_present = 0;
5823
5824                 vports = lpfc_create_vport_work_array(phba);
5825                 if (vports) {
5826                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5827                                         i++) {
5828                                 if ((!(vports[i]->fc_flag &
5829                                         FC_VPORT_CVL_RCVD)) &&
5830                                         (vports[i]->port_state > LPFC_FDISC)) {
5831                                         active_vlink_present = 1;
5832                                         break;
5833                                 }
5834                         }
5835                         lpfc_destroy_vport_work_array(phba, vports);
5836                 }
5837
5838                 /*
5839                  * Don't re-instantiate if vport is marked for deletion.
5840                  * If we are here first then vport_delete is going to wait
5841                  * for discovery to complete.
5842                  */
5843                 if (!(vport->load_flag & FC_UNLOADING) &&
5844                                         active_vlink_present) {
5845                         /*
5846                          * If there are other active VLinks present,
5847                          * re-instantiate the Vlink using FDISC.
5848                          */
5849                         mod_timer(&ndlp->nlp_delayfunc,
5850                                   jiffies + msecs_to_jiffies(1000));
5851                         shost = lpfc_shost_from_vport(vport);
5852                         spin_lock_irq(shost->host_lock);
5853                         ndlp->nlp_flag |= NLP_DELAY_TMO;
5854                         spin_unlock_irq(shost->host_lock);
5855                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5856                         vport->port_state = LPFC_FDISC;
5857                 } else {
5858                         /*
5859                          * Otherwise, we request port to rediscover
5860                          * the entire FCF table for a fast recovery
5861                          * from possible case that the current FCF
5862                          * is no longer valid if we are not already
5863                          * in the FCF failover process.
5864                          */
5865                         spin_lock_irq(&phba->hbalock);
5866                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5867                                 spin_unlock_irq(&phba->hbalock);
5868                                 break;
5869                         }
5870                         /* Mark the fast failover process in progress */
5871                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5872                         spin_unlock_irq(&phba->hbalock);
5873                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5874                                         LOG_DISCOVERY,
5875                                         "2773 Start FCF failover per CVL, "
5876                                         "evt_tag:x%x\n", acqe_fip->event_tag);
5877                         rc = lpfc_sli4_redisc_fcf_table(phba);
5878                         if (rc) {
5879                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5880                                                 LOG_TRACE_EVENT,
5881                                                 "2774 Issue FCF rediscover "
5882                                                 "mailbox command failed, "
5883                                                 "through to CVL event\n");
5884                                 spin_lock_irq(&phba->hbalock);
5885                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5886                                 spin_unlock_irq(&phba->hbalock);
5887                                 /*
5888                                  * Last resort will be re-try on the
5889                                  * the current registered FCF entry.
5890                                  */
5891                                 lpfc_retry_pport_discovery(phba);
5892                         } else
5893                                 /*
5894                                  * Reset FCF roundrobin bmask for new
5895                                  * discovery.
5896                                  */
5897                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
5898                 }
5899                 break;
5900         default:
5901                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5902                                 "0288 Unknown FCoE event type 0x%x event tag "
5903                                 "0x%x\n", event_type, acqe_fip->event_tag);
5904                 break;
5905         }
5906 }
5907
5908 /**
5909  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5910  * @phba: pointer to lpfc hba data structure.
5911  * @acqe_dcbx: pointer to the async dcbx completion queue entry.
5912  *
5913  * This routine is to handle the SLI4 asynchronous dcbx event.
5914  **/
5915 static void
5916 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5917                          struct lpfc_acqe_dcbx *acqe_dcbx)
5918 {
5919         phba->fc_eventTag = acqe_dcbx->event_tag;
5920         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5921                         "0290 The SLI4 DCBX asynchronous event is not "
5922                         "handled yet\n");
5923 }
5924
5925 /**
5926  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5927  * @phba: pointer to lpfc hba data structure.
5928  * @acqe_grp5: pointer to the async grp5 completion queue entry.
5929  *
5930  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5931  * is an asynchronous notified of a logical link speed change.  The Port
5932  * reports the logical link speed in units of 10Mbps.
5933  **/
5934 static void
5935 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5936                          struct lpfc_acqe_grp5 *acqe_grp5)
5937 {
5938         uint16_t prev_ll_spd;
5939
5940         phba->fc_eventTag = acqe_grp5->event_tag;
5941         phba->fcoe_eventtag = acqe_grp5->event_tag;
5942         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5943         phba->sli4_hba.link_state.logical_speed =
5944                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5945         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5946                         "2789 GRP5 Async Event: Updating logical link speed "
5947                         "from %dMbps to %dMbps\n", prev_ll_spd,
5948                         phba->sli4_hba.link_state.logical_speed);
5949 }
5950
5951 /**
5952  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5953  * @phba: pointer to lpfc hba data structure.
5954  *
5955  * This routine is invoked by the worker thread to process all the pending
5956  * SLI4 asynchronous events.
5957  **/
5958 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5959 {
5960         struct lpfc_cq_event *cq_event;
5961         unsigned long iflags;
5962
5963         /* First, declare the async event has been handled */
5964         spin_lock_irqsave(&phba->hbalock, iflags);
5965         phba->hba_flag &= ~ASYNC_EVENT;
5966         spin_unlock_irqrestore(&phba->hbalock, iflags);
5967
5968         /* Now, handle all the async events */
5969         spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
5970         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5971                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5972                                  cq_event, struct lpfc_cq_event, list);
5973                 spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock,
5974                                        iflags);
5975
5976                 /* Process the asynchronous event */
5977                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5978                 case LPFC_TRAILER_CODE_LINK:
5979                         lpfc_sli4_async_link_evt(phba,
5980                                                  &cq_event->cqe.acqe_link);
5981                         break;
5982                 case LPFC_TRAILER_CODE_FCOE:
5983                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5984                         break;
5985                 case LPFC_TRAILER_CODE_DCBX:
5986                         lpfc_sli4_async_dcbx_evt(phba,
5987                                                  &cq_event->cqe.acqe_dcbx);
5988                         break;
5989                 case LPFC_TRAILER_CODE_GRP5:
5990                         lpfc_sli4_async_grp5_evt(phba,
5991                                                  &cq_event->cqe.acqe_grp5);
5992                         break;
5993                 case LPFC_TRAILER_CODE_FC:
5994                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5995                         break;
5996                 case LPFC_TRAILER_CODE_SLI:
5997                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5998                         break;
5999                 default:
6000                         lpfc_printf_log(phba, KERN_ERR,
6001                                         LOG_TRACE_EVENT,
6002                                         "1804 Invalid asynchronous event code: "
6003                                         "x%x\n", bf_get(lpfc_trailer_code,
6004                                         &cq_event->cqe.mcqe_cmpl));
6005                         break;
6006                 }
6007
6008                 /* Free the completion event processed to the free pool */
6009                 lpfc_sli4_cq_event_release(phba, cq_event);
6010                 spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
6011         }
6012         spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
6013 }
6014
6015 /**
6016  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
6017  * @phba: pointer to lpfc hba data structure.
6018  *
6019  * This routine is invoked by the worker thread to process FCF table
6020  * rediscovery pending completion event.
6021  **/
6022 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
6023 {
6024         int rc;
6025
6026         spin_lock_irq(&phba->hbalock);
6027         /* Clear FCF rediscovery timeout event */
6028         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
6029         /* Clear driver fast failover FCF record flag */
6030         phba->fcf.failover_rec.flag = 0;
6031         /* Set state for FCF fast failover */
6032         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
6033         spin_unlock_irq(&phba->hbalock);
6034
6035         /* Scan FCF table from the first entry to re-discover SAN */
6036         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6037                         "2777 Start post-quiescent FCF table scan\n");
6038         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
6039         if (rc)
6040                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6041                                 "2747 Issue FCF scan read FCF mailbox "
6042                                 "command failed 0x%x\n", rc);
6043 }
6044
6045 /**
6046  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
6047  * @phba: pointer to lpfc hba data structure.
6048  * @dev_grp: The HBA PCI-Device group number.
6049  *
6050  * This routine is invoked to set up the per HBA PCI-Device group function
6051  * API jump table entries.
6052  *
6053  * Return: 0 if success, otherwise -ENODEV
6054  **/
6055 int
6056 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6057 {
6058         int rc;
6059
6060         /* Set up lpfc PCI-device group */
6061         phba->pci_dev_grp = dev_grp;
6062
6063         /* The LPFC_PCI_DEV_OC uses SLI4 */
6064         if (dev_grp == LPFC_PCI_DEV_OC)
6065                 phba->sli_rev = LPFC_SLI_REV4;
6066
6067         /* Set up device INIT API function jump table */
6068         rc = lpfc_init_api_table_setup(phba, dev_grp);
6069         if (rc)
6070                 return -ENODEV;
6071         /* Set up SCSI API function jump table */
6072         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
6073         if (rc)
6074                 return -ENODEV;
6075         /* Set up SLI API function jump table */
6076         rc = lpfc_sli_api_table_setup(phba, dev_grp);
6077         if (rc)
6078                 return -ENODEV;
6079         /* Set up MBOX API function jump table */
6080         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
6081         if (rc)
6082                 return -ENODEV;
6083
6084         return 0;
6085 }
6086
6087 /**
6088  * lpfc_log_intr_mode - Log the active interrupt mode
6089  * @phba: pointer to lpfc hba data structure.
6090  * @intr_mode: active interrupt mode adopted.
6091  *
6092  * This routine it invoked to log the currently used active interrupt mode
6093  * to the device.
6094  **/
6095 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
6096 {
6097         switch (intr_mode) {
6098         case 0:
6099                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6100                                 "0470 Enable INTx interrupt mode.\n");
6101                 break;
6102         case 1:
6103                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6104                                 "0481 Enabled MSI interrupt mode.\n");
6105                 break;
6106         case 2:
6107                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6108                                 "0480 Enabled MSI-X interrupt mode.\n");
6109                 break;
6110         default:
6111                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6112                                 "0482 Illegal interrupt mode.\n");
6113                 break;
6114         }
6115         return;
6116 }
6117
6118 /**
6119  * lpfc_enable_pci_dev - Enable a generic PCI device.
6120  * @phba: pointer to lpfc hba data structure.
6121  *
6122  * This routine is invoked to enable the PCI device that is common to all
6123  * PCI devices.
6124  *
6125  * Return codes
6126  *      0 - successful
6127  *      other values - error
6128  **/
6129 static int
6130 lpfc_enable_pci_dev(struct lpfc_hba *phba)
6131 {
6132         struct pci_dev *pdev;
6133
6134         /* Obtain PCI device reference */
6135         if (!phba->pcidev)
6136                 goto out_error;
6137         else
6138                 pdev = phba->pcidev;
6139         /* Enable PCI device */
6140         if (pci_enable_device_mem(pdev))
6141                 goto out_error;
6142         /* Request PCI resource for the device */
6143         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
6144                 goto out_disable_device;
6145         /* Set up device as PCI master and save state for EEH */
6146         pci_set_master(pdev);
6147         pci_try_set_mwi(pdev);
6148         pci_save_state(pdev);
6149
6150         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
6151         if (pci_is_pcie(pdev))
6152                 pdev->needs_freset = 1;
6153
6154         return 0;
6155
6156 out_disable_device:
6157         pci_disable_device(pdev);
6158 out_error:
6159         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6160                         "1401 Failed to enable pci device\n");
6161         return -ENODEV;
6162 }
6163
6164 /**
6165  * lpfc_disable_pci_dev - Disable a generic PCI device.
6166  * @phba: pointer to lpfc hba data structure.
6167  *
6168  * This routine is invoked to disable the PCI device that is common to all
6169  * PCI devices.
6170  **/
6171 static void
6172 lpfc_disable_pci_dev(struct lpfc_hba *phba)
6173 {
6174         struct pci_dev *pdev;
6175
6176         /* Obtain PCI device reference */
6177         if (!phba->pcidev)
6178                 return;
6179         else
6180                 pdev = phba->pcidev;
6181         /* Release PCI resource and disable PCI device */
6182         pci_release_mem_regions(pdev);
6183         pci_disable_device(pdev);
6184
6185         return;
6186 }
6187
6188 /**
6189  * lpfc_reset_hba - Reset a hba
6190  * @phba: pointer to lpfc hba data structure.
6191  *
6192  * This routine is invoked to reset a hba device. It brings the HBA
6193  * offline, performs a board restart, and then brings the board back
6194  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
6195  * on outstanding mailbox commands.
6196  **/
6197 void
6198 lpfc_reset_hba(struct lpfc_hba *phba)
6199 {
6200         /* If resets are disabled then set error state and return. */
6201         if (!phba->cfg_enable_hba_reset) {
6202                 phba->link_state = LPFC_HBA_ERROR;
6203                 return;
6204         }
6205         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
6206                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
6207         else
6208                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
6209         lpfc_offline(phba);
6210         lpfc_sli_brdrestart(phba);
6211         lpfc_online(phba);
6212         lpfc_unblock_mgmt_io(phba);
6213 }
6214
6215 /**
6216  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
6217  * @phba: pointer to lpfc hba data structure.
6218  *
6219  * This function enables the PCI SR-IOV virtual functions to a physical
6220  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6221  * enable the number of virtual functions to the physical function. As
6222  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6223  * API call does not considered as an error condition for most of the device.
6224  **/
6225 uint16_t
6226 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
6227 {
6228         struct pci_dev *pdev = phba->pcidev;
6229         uint16_t nr_virtfn;
6230         int pos;
6231
6232         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
6233         if (pos == 0)
6234                 return 0;
6235
6236         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
6237         return nr_virtfn;
6238 }
6239
6240 /**
6241  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
6242  * @phba: pointer to lpfc hba data structure.
6243  * @nr_vfn: number of virtual functions to be enabled.
6244  *
6245  * This function enables the PCI SR-IOV virtual functions to a physical
6246  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6247  * enable the number of virtual functions to the physical function. As
6248  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6249  * API call does not considered as an error condition for most of the device.
6250  **/
6251 int
6252 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
6253 {
6254         struct pci_dev *pdev = phba->pcidev;
6255         uint16_t max_nr_vfn;
6256         int rc;
6257
6258         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
6259         if (nr_vfn > max_nr_vfn) {
6260                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6261                                 "3057 Requested vfs (%d) greater than "
6262                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
6263                 return -EINVAL;
6264         }
6265
6266         rc = pci_enable_sriov(pdev, nr_vfn);
6267         if (rc) {
6268                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6269                                 "2806 Failed to enable sriov on this device "
6270                                 "with vfn number nr_vf:%d, rc:%d\n",
6271                                 nr_vfn, rc);
6272         } else
6273                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6274                                 "2807 Successful enable sriov on this device "
6275                                 "with vfn number nr_vf:%d\n", nr_vfn);
6276         return rc;
6277 }
6278
6279 /**
6280  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
6281  * @phba: pointer to lpfc hba data structure.
6282  *
6283  * This routine is invoked to set up the driver internal resources before the
6284  * device specific resource setup to support the HBA device it attached to.
6285  *
6286  * Return codes
6287  *      0 - successful
6288  *      other values - error
6289  **/
6290 static int
6291 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
6292 {
6293         struct lpfc_sli *psli = &phba->sli;
6294
6295         /*
6296          * Driver resources common to all SLI revisions
6297          */
6298         atomic_set(&phba->fast_event_count, 0);
6299         atomic_set(&phba->dbg_log_idx, 0);
6300         atomic_set(&phba->dbg_log_cnt, 0);
6301         atomic_set(&phba->dbg_log_dmping, 0);
6302         spin_lock_init(&phba->hbalock);
6303
6304         /* Initialize ndlp management spinlock */
6305         spin_lock_init(&phba->ndlp_lock);
6306
6307         /* Initialize port_list spinlock */
6308         spin_lock_init(&phba->port_list_lock);
6309         INIT_LIST_HEAD(&phba->port_list);
6310
6311         INIT_LIST_HEAD(&phba->work_list);
6312         init_waitqueue_head(&phba->wait_4_mlo_m_q);
6313
6314         /* Initialize the wait queue head for the kernel thread */
6315         init_waitqueue_head(&phba->work_waitq);
6316
6317         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6318                         "1403 Protocols supported %s %s %s\n",
6319                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
6320                                 "SCSI" : " "),
6321                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
6322                                 "NVME" : " "),
6323                         (phba->nvmet_support ? "NVMET" : " "));
6324
6325         /* Initialize the IO buffer list used by driver for SLI3 SCSI */
6326         spin_lock_init(&phba->scsi_buf_list_get_lock);
6327         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
6328         spin_lock_init(&phba->scsi_buf_list_put_lock);
6329         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
6330
6331         /* Initialize the fabric iocb list */
6332         INIT_LIST_HEAD(&phba->fabric_iocb_list);
6333
6334         /* Initialize list to save ELS buffers */
6335         INIT_LIST_HEAD(&phba->elsbuf);
6336
6337         /* Initialize FCF connection rec list */
6338         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
6339
6340         /* Initialize OAS configuration list */
6341         spin_lock_init(&phba->devicelock);
6342         INIT_LIST_HEAD(&phba->luns);
6343
6344         /* MBOX heartbeat timer */
6345         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
6346         /* Fabric block timer */
6347         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
6348         /* EA polling mode timer */
6349         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
6350         /* Heartbeat timer */
6351         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
6352
6353         INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
6354
6355         INIT_DELAYED_WORK(&phba->idle_stat_delay_work,
6356                           lpfc_idle_stat_delay_work);
6357
6358         return 0;
6359 }
6360
6361 /**
6362  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
6363  * @phba: pointer to lpfc hba data structure.
6364  *
6365  * This routine is invoked to set up the driver internal resources specific to
6366  * support the SLI-3 HBA device it attached to.
6367  *
6368  * Return codes
6369  * 0 - successful
6370  * other values - error
6371  **/
6372 static int
6373 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
6374 {
6375         int rc, entry_sz;
6376
6377         /*
6378          * Initialize timers used by driver
6379          */
6380
6381         /* FCP polling mode timer */
6382         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
6383
6384         /* Host attention work mask setup */
6385         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
6386         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
6387
6388         /* Get all the module params for configuring this host */
6389         lpfc_get_cfgparam(phba);
6390         /* Set up phase-1 common device driver resources */
6391
6392         rc = lpfc_setup_driver_resource_phase1(phba);
6393         if (rc)
6394                 return -ENODEV;
6395
6396         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
6397                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
6398                 /* check for menlo minimum sg count */
6399                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
6400                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
6401         }
6402
6403         if (!phba->sli.sli3_ring)
6404                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
6405                                               sizeof(struct lpfc_sli_ring),
6406                                               GFP_KERNEL);
6407         if (!phba->sli.sli3_ring)
6408                 return -ENOMEM;
6409
6410         /*
6411          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
6412          * used to create the sg_dma_buf_pool must be dynamically calculated.
6413          */
6414
6415         if (phba->sli_rev == LPFC_SLI_REV4)
6416                 entry_sz = sizeof(struct sli4_sge);
6417         else
6418                 entry_sz = sizeof(struct ulp_bde64);
6419
6420         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
6421         if (phba->cfg_enable_bg) {
6422                 /*
6423                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
6424                  * the FCP rsp, and a BDE for each. Sice we have no control
6425                  * over how many protection data segments the SCSI Layer
6426                  * will hand us (ie: there could be one for every block
6427                  * in the IO), we just allocate enough BDEs to accomidate
6428                  * our max amount and we need to limit lpfc_sg_seg_cnt to
6429                  * minimize the risk of running out.
6430                  */
6431                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6432                         sizeof(struct fcp_rsp) +
6433                         (LPFC_MAX_SG_SEG_CNT * entry_sz);
6434
6435                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
6436                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
6437
6438                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
6439                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
6440         } else {
6441                 /*
6442                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
6443                  * the FCP rsp, a BDE for each, and a BDE for up to
6444                  * cfg_sg_seg_cnt data segments.
6445                  */
6446                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6447                         sizeof(struct fcp_rsp) +
6448                         ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
6449
6450                 /* Total BDEs in BPL for scsi_sg_list */
6451                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
6452         }
6453
6454         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6455                         "9088 INIT sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
6456                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6457                         phba->cfg_total_seg_cnt);
6458
6459         phba->max_vpi = LPFC_MAX_VPI;
6460         /* This will be set to correct value after config_port mbox */
6461         phba->max_vports = 0;
6462
6463         /*
6464          * Initialize the SLI Layer to run with lpfc HBAs.
6465          */
6466         lpfc_sli_setup(phba);
6467         lpfc_sli_queue_init(phba);
6468
6469         /* Allocate device driver memory */
6470         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
6471                 return -ENOMEM;
6472
6473         phba->lpfc_sg_dma_buf_pool =
6474                 dma_pool_create("lpfc_sg_dma_buf_pool",
6475                                 &phba->pcidev->dev, phba->cfg_sg_dma_buf_size,
6476                                 BPL_ALIGN_SZ, 0);
6477
6478         if (!phba->lpfc_sg_dma_buf_pool)
6479                 goto fail_free_mem;
6480
6481         phba->lpfc_cmd_rsp_buf_pool =
6482                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
6483                                         &phba->pcidev->dev,
6484                                         sizeof(struct fcp_cmnd) +
6485                                         sizeof(struct fcp_rsp),
6486                                         BPL_ALIGN_SZ, 0);
6487
6488         if (!phba->lpfc_cmd_rsp_buf_pool)
6489                 goto fail_free_dma_buf_pool;
6490
6491         /*
6492          * Enable sr-iov virtual functions if supported and configured
6493          * through the module parameter.
6494          */
6495         if (phba->cfg_sriov_nr_virtfn > 0) {
6496                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6497                                                  phba->cfg_sriov_nr_virtfn);
6498                 if (rc) {
6499                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6500                                         "2808 Requested number of SR-IOV "
6501                                         "virtual functions (%d) is not "
6502                                         "supported\n",
6503                                         phba->cfg_sriov_nr_virtfn);
6504                         phba->cfg_sriov_nr_virtfn = 0;
6505                 }
6506         }
6507
6508         return 0;
6509
6510 fail_free_dma_buf_pool:
6511         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
6512         phba->lpfc_sg_dma_buf_pool = NULL;
6513 fail_free_mem:
6514         lpfc_mem_free(phba);
6515         return -ENOMEM;
6516 }
6517
6518 /**
6519  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
6520  * @phba: pointer to lpfc hba data structure.
6521  *
6522  * This routine is invoked to unset the driver internal resources set up
6523  * specific for supporting the SLI-3 HBA device it attached to.
6524  **/
6525 static void
6526 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
6527 {
6528         /* Free device driver memory allocated */
6529         lpfc_mem_free_all(phba);
6530
6531         return;
6532 }
6533
6534 /**
6535  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
6536  * @phba: pointer to lpfc hba data structure.
6537  *
6538  * This routine is invoked to set up the driver internal resources specific to
6539  * support the SLI-4 HBA device it attached to.
6540  *
6541  * Return codes
6542  *      0 - successful
6543  *      other values - error
6544  **/
6545 static int
6546 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
6547 {
6548         LPFC_MBOXQ_t *mboxq;
6549         MAILBOX_t *mb;
6550         int rc, i, max_buf_size;
6551         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
6552         struct lpfc_mqe *mqe;
6553         int longs;
6554         int extra;
6555         uint64_t wwn;
6556         u32 if_type;
6557         u32 if_fam;
6558
6559         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
6560         phba->sli4_hba.num_possible_cpu = cpumask_last(cpu_possible_mask) + 1;
6561         phba->sli4_hba.curr_disp_cpu = 0;
6562
6563         /* Get all the module params for configuring this host */
6564         lpfc_get_cfgparam(phba);
6565
6566         /* Set up phase-1 common device driver resources */
6567         rc = lpfc_setup_driver_resource_phase1(phba);
6568         if (rc)
6569                 return -ENODEV;
6570
6571         /* Before proceed, wait for POST done and device ready */
6572         rc = lpfc_sli4_post_status_check(phba);
6573         if (rc)
6574                 return -ENODEV;
6575
6576         /* Allocate all driver workqueues here */
6577
6578         /* The lpfc_wq workqueue for deferred irq use */
6579         phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
6580
6581         /*
6582          * Initialize timers used by driver
6583          */
6584
6585         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
6586
6587         /* FCF rediscover timer */
6588         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
6589
6590         /*
6591          * Control structure for handling external multi-buffer mailbox
6592          * command pass-through.
6593          */
6594         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
6595                 sizeof(struct lpfc_mbox_ext_buf_ctx));
6596         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
6597
6598         phba->max_vpi = LPFC_MAX_VPI;
6599
6600         /* This will be set to correct value after the read_config mbox */
6601         phba->max_vports = 0;
6602
6603         /* Program the default value of vlan_id and fc_map */
6604         phba->valid_vlan = 0;
6605         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
6606         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
6607         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
6608
6609         /*
6610          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
6611          * we will associate a new ring, for each EQ/CQ/WQ tuple.
6612          * The WQ create will allocate the ring.
6613          */
6614
6615         /* Initialize buffer queue management fields */
6616         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
6617         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
6618         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
6619
6620         /*
6621          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
6622          */
6623         /* Initialize the Abort buffer list used by driver */
6624         spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock);
6625         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_io_buf_list);
6626
6627         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6628                 /* Initialize the Abort nvme buffer list used by driver */
6629                 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
6630                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6631                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
6632                 spin_lock_init(&phba->sli4_hba.t_active_list_lock);
6633                 INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list);
6634         }
6635
6636         /* This abort list used by worker thread */
6637         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
6638         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
6639         spin_lock_init(&phba->sli4_hba.asynce_list_lock);
6640         spin_lock_init(&phba->sli4_hba.els_xri_abrt_list_lock);
6641
6642         /*
6643          * Initialize driver internal slow-path work queues
6644          */
6645
6646         /* Driver internel slow-path CQ Event pool */
6647         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
6648         /* Response IOCB work queue list */
6649         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
6650         /* Asynchronous event CQ Event work queue list */
6651         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
6652         /* Slow-path XRI aborted CQ Event work queue list */
6653         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
6654         /* Receive queue CQ Event work queue list */
6655         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
6656
6657         /* Initialize extent block lists. */
6658         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
6659         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
6660         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
6661         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
6662
6663         /* Initialize mboxq lists. If the early init routines fail
6664          * these lists need to be correctly initialized.
6665          */
6666         INIT_LIST_HEAD(&phba->sli.mboxq);
6667         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
6668
6669         /* initialize optic_state to 0xFF */
6670         phba->sli4_hba.lnk_info.optic_state = 0xff;
6671
6672         /* Allocate device driver memory */
6673         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
6674         if (rc)
6675                 return -ENOMEM;
6676
6677         /* IF Type 2 ports get initialized now. */
6678         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
6679             LPFC_SLI_INTF_IF_TYPE_2) {
6680                 rc = lpfc_pci_function_reset(phba);
6681                 if (unlikely(rc)) {
6682                         rc = -ENODEV;
6683                         goto out_free_mem;
6684                 }
6685                 phba->temp_sensor_support = 1;
6686         }
6687
6688         /* Create the bootstrap mailbox command */
6689         rc = lpfc_create_bootstrap_mbox(phba);
6690         if (unlikely(rc))
6691                 goto out_free_mem;
6692
6693         /* Set up the host's endian order with the device. */
6694         rc = lpfc_setup_endian_order(phba);
6695         if (unlikely(rc))
6696                 goto out_free_bsmbx;
6697
6698         /* Set up the hba's configuration parameters. */
6699         rc = lpfc_sli4_read_config(phba);
6700         if (unlikely(rc))
6701                 goto out_free_bsmbx;
6702         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6703         if (unlikely(rc))
6704                 goto out_free_bsmbx;
6705
6706         /* IF Type 0 ports get initialized now. */
6707         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6708             LPFC_SLI_INTF_IF_TYPE_0) {
6709                 rc = lpfc_pci_function_reset(phba);
6710                 if (unlikely(rc))
6711                         goto out_free_bsmbx;
6712         }
6713
6714         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6715                                                        GFP_KERNEL);
6716         if (!mboxq) {
6717                 rc = -ENOMEM;
6718                 goto out_free_bsmbx;
6719         }
6720
6721         /* Check for NVMET being configured */
6722         phba->nvmet_support = 0;
6723         if (lpfc_enable_nvmet_cnt) {
6724
6725                 /* First get WWN of HBA instance */
6726                 lpfc_read_nv(phba, mboxq);
6727                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6728                 if (rc != MBX_SUCCESS) {
6729                         lpfc_printf_log(phba, KERN_ERR,
6730                                         LOG_TRACE_EVENT,
6731                                         "6016 Mailbox failed , mbxCmd x%x "
6732                                         "READ_NV, mbxStatus x%x\n",
6733                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6734                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6735                         mempool_free(mboxq, phba->mbox_mem_pool);
6736                         rc = -EIO;
6737                         goto out_free_bsmbx;
6738                 }
6739                 mb = &mboxq->u.mb;
6740                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6741                        sizeof(uint64_t));
6742                 wwn = cpu_to_be64(wwn);
6743                 phba->sli4_hba.wwnn.u.name = wwn;
6744                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6745                        sizeof(uint64_t));
6746                 /* wwn is WWPN of HBA instance */
6747                 wwn = cpu_to_be64(wwn);
6748                 phba->sli4_hba.wwpn.u.name = wwn;
6749
6750                 /* Check to see if it matches any module parameter */
6751                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6752                         if (wwn == lpfc_enable_nvmet[i]) {
6753 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6754                                 if (lpfc_nvmet_mem_alloc(phba))
6755                                         break;
6756
6757                                 phba->nvmet_support = 1; /* a match */
6758
6759                                 lpfc_printf_log(phba, KERN_ERR,
6760                                                 LOG_TRACE_EVENT,
6761                                                 "6017 NVME Target %016llx\n",
6762                                                 wwn);
6763 #else
6764                                 lpfc_printf_log(phba, KERN_ERR,
6765                                                 LOG_TRACE_EVENT,
6766                                                 "6021 Can't enable NVME Target."
6767                                                 " NVME_TARGET_FC infrastructure"
6768                                                 " is not in kernel\n");
6769 #endif
6770                                 /* Not supported for NVMET */
6771                                 phba->cfg_xri_rebalancing = 0;
6772                                 if (phba->irq_chann_mode == NHT_MODE) {
6773                                         phba->cfg_irq_chann =
6774                                                 phba->sli4_hba.num_present_cpu;
6775                                         phba->cfg_hdw_queue =
6776                                                 phba->sli4_hba.num_present_cpu;
6777                                         phba->irq_chann_mode = NORMAL_MODE;
6778                                 }
6779                                 break;
6780                         }
6781                 }
6782         }
6783
6784         lpfc_nvme_mod_param_dep(phba);
6785
6786         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
6787         lpfc_supported_pages(mboxq);
6788         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6789         if (!rc) {
6790                 mqe = &mboxq->u.mqe;
6791                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
6792                        LPFC_MAX_SUPPORTED_PAGES);
6793                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
6794                         switch (pn_page[i]) {
6795                         case LPFC_SLI4_PARAMETERS:
6796                                 phba->sli4_hba.pc_sli4_params.supported = 1;
6797                                 break;
6798                         default:
6799                                 break;
6800                         }
6801                 }
6802                 /* Read the port's SLI4 Parameters capabilities if supported. */
6803                 if (phba->sli4_hba.pc_sli4_params.supported)
6804                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
6805                 if (rc) {
6806                         mempool_free(mboxq, phba->mbox_mem_pool);
6807                         rc = -EIO;
6808                         goto out_free_bsmbx;
6809                 }
6810         }
6811
6812         /*
6813          * Get sli4 parameters that override parameters from Port capabilities.
6814          * If this call fails, it isn't critical unless the SLI4 parameters come
6815          * back in conflict.
6816          */
6817         rc = lpfc_get_sli4_parameters(phba, mboxq);
6818         if (rc) {
6819                 if_type = bf_get(lpfc_sli_intf_if_type,
6820                                  &phba->sli4_hba.sli_intf);
6821                 if_fam = bf_get(lpfc_sli_intf_sli_family,
6822                                 &phba->sli4_hba.sli_intf);
6823                 if (phba->sli4_hba.extents_in_use &&
6824                     phba->sli4_hba.rpi_hdrs_in_use) {
6825                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6826                                         "2999 Unsupported SLI4 Parameters "
6827                                         "Extents and RPI headers enabled.\n");
6828                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6829                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
6830                                 mempool_free(mboxq, phba->mbox_mem_pool);
6831                                 rc = -EIO;
6832                                 goto out_free_bsmbx;
6833                         }
6834                 }
6835                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6836                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
6837                         mempool_free(mboxq, phba->mbox_mem_pool);
6838                         rc = -EIO;
6839                         goto out_free_bsmbx;
6840                 }
6841         }
6842
6843         /*
6844          * 1 for cmd, 1 for rsp, NVME adds an extra one
6845          * for boundary conditions in its max_sgl_segment template.
6846          */
6847         extra = 2;
6848         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
6849                 extra++;
6850
6851         /*
6852          * It doesn't matter what family our adapter is in, we are
6853          * limited to 2 Pages, 512 SGEs, for our SGL.
6854          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
6855          */
6856         max_buf_size = (2 * SLI4_PAGE_SIZE);
6857
6858         /*
6859          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
6860          * used to create the sg_dma_buf_pool must be calculated.
6861          */
6862         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
6863                 /* Both cfg_enable_bg and cfg_external_dif code paths */
6864
6865                 /*
6866                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
6867                  * the FCP rsp, and a SGE. Sice we have no control
6868                  * over how many protection segments the SCSI Layer
6869                  * will hand us (ie: there could be one for every block
6870                  * in the IO), just allocate enough SGEs to accomidate
6871                  * our max amount and we need to limit lpfc_sg_seg_cnt
6872                  * to minimize the risk of running out.
6873                  */
6874                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6875                                 sizeof(struct fcp_rsp) + max_buf_size;
6876
6877                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
6878                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
6879
6880                 /*
6881                  * If supporting DIF, reduce the seg count for scsi to
6882                  * allow room for the DIF sges.
6883                  */
6884                 if (phba->cfg_enable_bg &&
6885                     phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
6886                         phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
6887                 else
6888                         phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6889
6890         } else {
6891                 /*
6892                  * The scsi_buf for a regular I/O holds the FCP cmnd,
6893                  * the FCP rsp, a SGE for each, and a SGE for up to
6894                  * cfg_sg_seg_cnt data segments.
6895                  */
6896                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6897                                 sizeof(struct fcp_rsp) +
6898                                 ((phba->cfg_sg_seg_cnt + extra) *
6899                                 sizeof(struct sli4_sge));
6900
6901                 /* Total SGEs for scsi_sg_list */
6902                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
6903                 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6904
6905                 /*
6906                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
6907                  * need to post 1 page for the SGL.
6908                  */
6909         }
6910
6911         if (phba->cfg_xpsgl && !phba->nvmet_support)
6912                 phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE;
6913         else if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
6914                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
6915         else
6916                 phba->cfg_sg_dma_buf_size =
6917                                 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
6918
6919         phba->border_sge_num = phba->cfg_sg_dma_buf_size /
6920                                sizeof(struct sli4_sge);
6921
6922         /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
6923         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6924                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
6925                         lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
6926                                         "6300 Reducing NVME sg segment "
6927                                         "cnt to %d\n",
6928                                         LPFC_MAX_NVME_SEG_CNT);
6929                         phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
6930                 } else
6931                         phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
6932         }
6933
6934         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6935                         "9087 sg_seg_cnt:%d dmabuf_size:%d "
6936                         "total:%d scsi:%d nvme:%d\n",
6937                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6938                         phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
6939                         phba->cfg_nvme_seg_cnt);
6940
6941         if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE)
6942                 i = phba->cfg_sg_dma_buf_size;
6943         else
6944                 i = SLI4_PAGE_SIZE;
6945
6946         phba->lpfc_sg_dma_buf_pool =
6947                         dma_pool_create("lpfc_sg_dma_buf_pool",
6948                                         &phba->pcidev->dev,
6949                                         phba->cfg_sg_dma_buf_size,
6950                                         i, 0);
6951         if (!phba->lpfc_sg_dma_buf_pool)
6952                 goto out_free_bsmbx;
6953
6954         phba->lpfc_cmd_rsp_buf_pool =
6955                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
6956                                         &phba->pcidev->dev,
6957                                         sizeof(struct fcp_cmnd) +
6958                                         sizeof(struct fcp_rsp),
6959                                         i, 0);
6960         if (!phba->lpfc_cmd_rsp_buf_pool)
6961                 goto out_free_sg_dma_buf;
6962
6963         mempool_free(mboxq, phba->mbox_mem_pool);
6964
6965         /* Verify OAS is supported */
6966         lpfc_sli4_oas_verify(phba);
6967
6968         /* Verify RAS support on adapter */
6969         lpfc_sli4_ras_init(phba);
6970
6971         /* Verify all the SLI4 queues */
6972         rc = lpfc_sli4_queue_verify(phba);
6973         if (rc)
6974                 goto out_free_cmd_rsp_buf;
6975
6976         /* Create driver internal CQE event pool */
6977         rc = lpfc_sli4_cq_event_pool_create(phba);
6978         if (rc)
6979                 goto out_free_cmd_rsp_buf;
6980
6981         /* Initialize sgl lists per host */
6982         lpfc_init_sgl_list(phba);
6983
6984         /* Allocate and initialize active sgl array */
6985         rc = lpfc_init_active_sgl_array(phba);
6986         if (rc) {
6987                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6988                                 "1430 Failed to initialize sgl list.\n");
6989                 goto out_destroy_cq_event_pool;
6990         }
6991         rc = lpfc_sli4_init_rpi_hdrs(phba);
6992         if (rc) {
6993                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6994                                 "1432 Failed to initialize rpi headers.\n");
6995                 goto out_free_active_sgl;
6996         }
6997
6998         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6999         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
7000         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
7001                                          GFP_KERNEL);
7002         if (!phba->fcf.fcf_rr_bmask) {
7003                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7004                                 "2759 Failed allocate memory for FCF round "
7005                                 "robin failover bmask\n");
7006                 rc = -ENOMEM;
7007                 goto out_remove_rpi_hdrs;
7008         }
7009
7010         phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
7011                                             sizeof(struct lpfc_hba_eq_hdl),
7012                                             GFP_KERNEL);
7013         if (!phba->sli4_hba.hba_eq_hdl) {
7014                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7015                                 "2572 Failed allocate memory for "
7016                                 "fast-path per-EQ handle array\n");
7017                 rc = -ENOMEM;
7018                 goto out_free_fcf_rr_bmask;
7019         }
7020
7021         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
7022                                         sizeof(struct lpfc_vector_map_info),
7023                                         GFP_KERNEL);
7024         if (!phba->sli4_hba.cpu_map) {
7025                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7026                                 "3327 Failed allocate memory for msi-x "
7027                                 "interrupt vector mapping\n");
7028                 rc = -ENOMEM;
7029                 goto out_free_hba_eq_hdl;
7030         }
7031
7032         phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
7033         if (!phba->sli4_hba.eq_info) {
7034                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7035                                 "3321 Failed allocation for per_cpu stats\n");
7036                 rc = -ENOMEM;
7037                 goto out_free_hba_cpu_map;
7038         }
7039
7040         phba->sli4_hba.idle_stat = kcalloc(phba->sli4_hba.num_possible_cpu,
7041                                            sizeof(*phba->sli4_hba.idle_stat),
7042                                            GFP_KERNEL);
7043         if (!phba->sli4_hba.idle_stat) {
7044                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7045                                 "3390 Failed allocation for idle_stat\n");
7046                 rc = -ENOMEM;
7047                 goto out_free_hba_eq_info;
7048         }
7049
7050 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
7051         phba->sli4_hba.c_stat = alloc_percpu(struct lpfc_hdwq_stat);
7052         if (!phba->sli4_hba.c_stat) {
7053                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7054                                 "3332 Failed allocating per cpu hdwq stats\n");
7055                 rc = -ENOMEM;
7056                 goto out_free_hba_idle_stat;
7057         }
7058 #endif
7059
7060         /*
7061          * Enable sr-iov virtual functions if supported and configured
7062          * through the module parameter.
7063          */
7064         if (phba->cfg_sriov_nr_virtfn > 0) {
7065                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
7066                                                  phba->cfg_sriov_nr_virtfn);
7067                 if (rc) {
7068                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7069                                         "3020 Requested number of SR-IOV "
7070                                         "virtual functions (%d) is not "
7071                                         "supported\n",
7072                                         phba->cfg_sriov_nr_virtfn);
7073                         phba->cfg_sriov_nr_virtfn = 0;
7074                 }
7075         }
7076
7077         return 0;
7078
7079 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
7080 out_free_hba_idle_stat:
7081         kfree(phba->sli4_hba.idle_stat);
7082 #endif
7083 out_free_hba_eq_info:
7084         free_percpu(phba->sli4_hba.eq_info);
7085 out_free_hba_cpu_map:
7086         kfree(phba->sli4_hba.cpu_map);
7087 out_free_hba_eq_hdl:
7088         kfree(phba->sli4_hba.hba_eq_hdl);
7089 out_free_fcf_rr_bmask:
7090         kfree(phba->fcf.fcf_rr_bmask);
7091 out_remove_rpi_hdrs:
7092         lpfc_sli4_remove_rpi_hdrs(phba);
7093 out_free_active_sgl:
7094         lpfc_free_active_sgl(phba);
7095 out_destroy_cq_event_pool:
7096         lpfc_sli4_cq_event_pool_destroy(phba);
7097 out_free_cmd_rsp_buf:
7098         dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool);
7099         phba->lpfc_cmd_rsp_buf_pool = NULL;
7100 out_free_sg_dma_buf:
7101         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
7102         phba->lpfc_sg_dma_buf_pool = NULL;
7103 out_free_bsmbx:
7104         lpfc_destroy_bootstrap_mbox(phba);
7105 out_free_mem:
7106         lpfc_mem_free(phba);
7107         return rc;
7108 }
7109
7110 /**
7111  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
7112  * @phba: pointer to lpfc hba data structure.
7113  *
7114  * This routine is invoked to unset the driver internal resources set up
7115  * specific for supporting the SLI-4 HBA device it attached to.
7116  **/
7117 static void
7118 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
7119 {
7120         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
7121
7122         free_percpu(phba->sli4_hba.eq_info);
7123 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
7124         free_percpu(phba->sli4_hba.c_stat);
7125 #endif
7126         kfree(phba->sli4_hba.idle_stat);
7127
7128         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
7129         kfree(phba->sli4_hba.cpu_map);
7130         phba->sli4_hba.num_possible_cpu = 0;
7131         phba->sli4_hba.num_present_cpu = 0;
7132         phba->sli4_hba.curr_disp_cpu = 0;
7133         cpumask_clear(&phba->sli4_hba.irq_aff_mask);
7134
7135         /* Free memory allocated for fast-path work queue handles */
7136         kfree(phba->sli4_hba.hba_eq_hdl);
7137
7138         /* Free the allocated rpi headers. */
7139         lpfc_sli4_remove_rpi_hdrs(phba);
7140         lpfc_sli4_remove_rpis(phba);
7141
7142         /* Free eligible FCF index bmask */
7143         kfree(phba->fcf.fcf_rr_bmask);
7144
7145         /* Free the ELS sgl list */
7146         lpfc_free_active_sgl(phba);
7147         lpfc_free_els_sgl_list(phba);
7148         lpfc_free_nvmet_sgl_list(phba);
7149
7150         /* Free the completion queue EQ event pool */
7151         lpfc_sli4_cq_event_release_all(phba);
7152         lpfc_sli4_cq_event_pool_destroy(phba);
7153
7154         /* Release resource identifiers. */
7155         lpfc_sli4_dealloc_resource_identifiers(phba);
7156
7157         /* Free the bsmbx region. */
7158         lpfc_destroy_bootstrap_mbox(phba);
7159
7160         /* Free the SLI Layer memory with SLI4 HBAs */
7161         lpfc_mem_free_all(phba);
7162
7163         /* Free the current connect table */
7164         list_for_each_entry_safe(conn_entry, next_conn_entry,
7165                 &phba->fcf_conn_rec_list, list) {
7166                 list_del_init(&conn_entry->list);
7167                 kfree(conn_entry);
7168         }
7169
7170         return;
7171 }
7172
7173 /**
7174  * lpfc_init_api_table_setup - Set up init api function jump table
7175  * @phba: The hba struct for which this call is being executed.
7176  * @dev_grp: The HBA PCI-Device group number.
7177  *
7178  * This routine sets up the device INIT interface API function jump table
7179  * in @phba struct.
7180  *
7181  * Returns: 0 - success, -ENODEV - failure.
7182  **/
7183 int
7184 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7185 {
7186         phba->lpfc_hba_init_link = lpfc_hba_init_link;
7187         phba->lpfc_hba_down_link = lpfc_hba_down_link;
7188         phba->lpfc_selective_reset = lpfc_selective_reset;
7189         switch (dev_grp) {
7190         case LPFC_PCI_DEV_LP:
7191                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
7192                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
7193                 phba->lpfc_stop_port = lpfc_stop_port_s3;
7194                 break;
7195         case LPFC_PCI_DEV_OC:
7196                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
7197                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
7198                 phba->lpfc_stop_port = lpfc_stop_port_s4;
7199                 break;
7200         default:
7201                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7202                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
7203                                 dev_grp);
7204                 return -ENODEV;
7205         }
7206         return 0;
7207 }
7208
7209 /**
7210  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
7211  * @phba: pointer to lpfc hba data structure.
7212  *
7213  * This routine is invoked to set up the driver internal resources after the
7214  * device specific resource setup to support the HBA device it attached to.
7215  *
7216  * Return codes
7217  *      0 - successful
7218  *      other values - error
7219  **/
7220 static int
7221 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
7222 {
7223         int error;
7224
7225         /* Startup the kernel thread for this host adapter. */
7226         phba->worker_thread = kthread_run(lpfc_do_work, phba,
7227                                           "lpfc_worker_%d", phba->brd_no);
7228         if (IS_ERR(phba->worker_thread)) {
7229                 error = PTR_ERR(phba->worker_thread);
7230                 return error;
7231         }
7232
7233         return 0;
7234 }
7235
7236 /**
7237  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
7238  * @phba: pointer to lpfc hba data structure.
7239  *
7240  * This routine is invoked to unset the driver internal resources set up after
7241  * the device specific resource setup for supporting the HBA device it
7242  * attached to.
7243  **/
7244 static void
7245 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
7246 {
7247         if (phba->wq) {
7248                 flush_workqueue(phba->wq);
7249                 destroy_workqueue(phba->wq);
7250                 phba->wq = NULL;
7251         }
7252
7253         /* Stop kernel worker thread */
7254         if (phba->worker_thread)
7255                 kthread_stop(phba->worker_thread);
7256 }
7257
7258 /**
7259  * lpfc_free_iocb_list - Free iocb list.
7260  * @phba: pointer to lpfc hba data structure.
7261  *
7262  * This routine is invoked to free the driver's IOCB list and memory.
7263  **/
7264 void
7265 lpfc_free_iocb_list(struct lpfc_hba *phba)
7266 {
7267         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
7268
7269         spin_lock_irq(&phba->hbalock);
7270         list_for_each_entry_safe(iocbq_entry, iocbq_next,
7271                                  &phba->lpfc_iocb_list, list) {
7272                 list_del(&iocbq_entry->list);
7273                 kfree(iocbq_entry);
7274                 phba->total_iocbq_bufs--;
7275         }
7276         spin_unlock_irq(&phba->hbalock);
7277
7278         return;
7279 }
7280
7281 /**
7282  * lpfc_init_iocb_list - Allocate and initialize iocb list.
7283  * @phba: pointer to lpfc hba data structure.
7284  * @iocb_count: number of requested iocbs
7285  *
7286  * This routine is invoked to allocate and initizlize the driver's IOCB
7287  * list and set up the IOCB tag array accordingly.
7288  *
7289  * Return codes
7290  *      0 - successful
7291  *      other values - error
7292  **/
7293 int
7294 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
7295 {
7296         struct lpfc_iocbq *iocbq_entry = NULL;
7297         uint16_t iotag;
7298         int i;
7299
7300         /* Initialize and populate the iocb list per host.  */
7301         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
7302         for (i = 0; i < iocb_count; i++) {
7303                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
7304                 if (iocbq_entry == NULL) {
7305                         printk(KERN_ERR "%s: only allocated %d iocbs of "
7306                                 "expected %d count. Unloading driver.\n",
7307                                 __func__, i, iocb_count);
7308                         goto out_free_iocbq;
7309                 }
7310
7311                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
7312                 if (iotag == 0) {
7313                         kfree(iocbq_entry);
7314                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
7315                                 "Unloading driver.\n", __func__);
7316                         goto out_free_iocbq;
7317                 }
7318                 iocbq_entry->sli4_lxritag = NO_XRI;
7319                 iocbq_entry->sli4_xritag = NO_XRI;
7320
7321                 spin_lock_irq(&phba->hbalock);
7322                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
7323                 phba->total_iocbq_bufs++;
7324                 spin_unlock_irq(&phba->hbalock);
7325         }
7326
7327         return 0;
7328
7329 out_free_iocbq:
7330         lpfc_free_iocb_list(phba);
7331
7332         return -ENOMEM;
7333 }
7334
7335 /**
7336  * lpfc_free_sgl_list - Free a given sgl list.
7337  * @phba: pointer to lpfc hba data structure.
7338  * @sglq_list: pointer to the head of sgl list.
7339  *
7340  * This routine is invoked to free a give sgl list and memory.
7341  **/
7342 void
7343 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
7344 {
7345         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7346
7347         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
7348                 list_del(&sglq_entry->list);
7349                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
7350                 kfree(sglq_entry);
7351         }
7352 }
7353
7354 /**
7355  * lpfc_free_els_sgl_list - Free els sgl list.
7356  * @phba: pointer to lpfc hba data structure.
7357  *
7358  * This routine is invoked to free the driver's els sgl list and memory.
7359  **/
7360 static void
7361 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
7362 {
7363         LIST_HEAD(sglq_list);
7364
7365         /* Retrieve all els sgls from driver list */
7366         spin_lock_irq(&phba->hbalock);
7367         spin_lock(&phba->sli4_hba.sgl_list_lock);
7368         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
7369         spin_unlock(&phba->sli4_hba.sgl_list_lock);
7370         spin_unlock_irq(&phba->hbalock);
7371
7372         /* Now free the sgl list */
7373         lpfc_free_sgl_list(phba, &sglq_list);
7374 }
7375
7376 /**
7377  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
7378  * @phba: pointer to lpfc hba data structure.
7379  *
7380  * This routine is invoked to free the driver's nvmet sgl list and memory.
7381  **/
7382 static void
7383 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
7384 {
7385         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7386         LIST_HEAD(sglq_list);
7387
7388         /* Retrieve all nvmet sgls from driver list */
7389         spin_lock_irq(&phba->hbalock);
7390         spin_lock(&phba->sli4_hba.sgl_list_lock);
7391         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
7392         spin_unlock(&phba->sli4_hba.sgl_list_lock);
7393         spin_unlock_irq(&phba->hbalock);
7394
7395         /* Now free the sgl list */
7396         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
7397                 list_del(&sglq_entry->list);
7398                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
7399                 kfree(sglq_entry);
7400         }
7401
7402         /* Update the nvmet_xri_cnt to reflect no current sgls.
7403          * The next initialization cycle sets the count and allocates
7404          * the sgls over again.
7405          */
7406         phba->sli4_hba.nvmet_xri_cnt = 0;
7407 }
7408
7409 /**
7410  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
7411  * @phba: pointer to lpfc hba data structure.
7412  *
7413  * This routine is invoked to allocate the driver's active sgl memory.
7414  * This array will hold the sglq_entry's for active IOs.
7415  **/
7416 static int
7417 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
7418 {
7419         int size;
7420         size = sizeof(struct lpfc_sglq *);
7421         size *= phba->sli4_hba.max_cfg_param.max_xri;
7422
7423         phba->sli4_hba.lpfc_sglq_active_list =
7424                 kzalloc(size, GFP_KERNEL);
7425         if (!phba->sli4_hba.lpfc_sglq_active_list)
7426                 return -ENOMEM;
7427         return 0;
7428 }
7429
7430 /**
7431  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
7432  * @phba: pointer to lpfc hba data structure.
7433  *
7434  * This routine is invoked to walk through the array of active sglq entries
7435  * and free all of the resources.
7436  * This is just a place holder for now.
7437  **/
7438 static void
7439 lpfc_free_active_sgl(struct lpfc_hba *phba)
7440 {
7441         kfree(phba->sli4_hba.lpfc_sglq_active_list);
7442 }
7443
7444 /**
7445  * lpfc_init_sgl_list - Allocate and initialize sgl list.
7446  * @phba: pointer to lpfc hba data structure.
7447  *
7448  * This routine is invoked to allocate and initizlize the driver's sgl
7449  * list and set up the sgl xritag tag array accordingly.
7450  *
7451  **/
7452 static void
7453 lpfc_init_sgl_list(struct lpfc_hba *phba)
7454 {
7455         /* Initialize and populate the sglq list per host/VF. */
7456         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
7457         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7458         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
7459         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
7460
7461         /* els xri-sgl book keeping */
7462         phba->sli4_hba.els_xri_cnt = 0;
7463
7464         /* nvme xri-buffer book keeping */
7465         phba->sli4_hba.io_xri_cnt = 0;
7466 }
7467
7468 /**
7469  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
7470  * @phba: pointer to lpfc hba data structure.
7471  *
7472  * This routine is invoked to post rpi header templates to the
7473  * port for those SLI4 ports that do not support extents.  This routine
7474  * posts a PAGE_SIZE memory region to the port to hold up to
7475  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
7476  * and should be called only when interrupts are disabled.
7477  *
7478  * Return codes
7479  *      0 - successful
7480  *      -ERROR - otherwise.
7481  **/
7482 int
7483 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
7484 {
7485         int rc = 0;
7486         struct lpfc_rpi_hdr *rpi_hdr;
7487
7488         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
7489         if (!phba->sli4_hba.rpi_hdrs_in_use)
7490                 return rc;
7491         if (phba->sli4_hba.extents_in_use)
7492                 return -EIO;
7493
7494         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
7495         if (!rpi_hdr) {
7496                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7497                                 "0391 Error during rpi post operation\n");
7498                 lpfc_sli4_remove_rpis(phba);
7499                 rc = -ENODEV;
7500         }
7501
7502         return rc;
7503 }
7504
7505 /**
7506  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
7507  * @phba: pointer to lpfc hba data structure.
7508  *
7509  * This routine is invoked to allocate a single 4KB memory region to
7510  * support rpis and stores them in the phba.  This single region
7511  * provides support for up to 64 rpis.  The region is used globally
7512  * by the device.
7513  *
7514  * Returns:
7515  *   A valid rpi hdr on success.
7516  *   A NULL pointer on any failure.
7517  **/
7518 struct lpfc_rpi_hdr *
7519 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
7520 {
7521         uint16_t rpi_limit, curr_rpi_range;
7522         struct lpfc_dmabuf *dmabuf;
7523         struct lpfc_rpi_hdr *rpi_hdr;
7524
7525         /*
7526          * If the SLI4 port supports extents, posting the rpi header isn't
7527          * required.  Set the expected maximum count and let the actual value
7528          * get set when extents are fully allocated.
7529          */
7530         if (!phba->sli4_hba.rpi_hdrs_in_use)
7531                 return NULL;
7532         if (phba->sli4_hba.extents_in_use)
7533                 return NULL;
7534
7535         /* The limit on the logical index is just the max_rpi count. */
7536         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
7537
7538         spin_lock_irq(&phba->hbalock);
7539         /*
7540          * Establish the starting RPI in this header block.  The starting
7541          * rpi is normalized to a zero base because the physical rpi is
7542          * port based.
7543          */
7544         curr_rpi_range = phba->sli4_hba.next_rpi;
7545         spin_unlock_irq(&phba->hbalock);
7546
7547         /* Reached full RPI range */
7548         if (curr_rpi_range == rpi_limit)
7549                 return NULL;
7550
7551         /*
7552          * First allocate the protocol header region for the port.  The
7553          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
7554          */
7555         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7556         if (!dmabuf)
7557                 return NULL;
7558
7559         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
7560                                           LPFC_HDR_TEMPLATE_SIZE,
7561                                           &dmabuf->phys, GFP_KERNEL);
7562         if (!dmabuf->virt) {
7563                 rpi_hdr = NULL;
7564                 goto err_free_dmabuf;
7565         }
7566
7567         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
7568                 rpi_hdr = NULL;
7569                 goto err_free_coherent;
7570         }
7571
7572         /* Save the rpi header data for cleanup later. */
7573         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
7574         if (!rpi_hdr)
7575                 goto err_free_coherent;
7576
7577         rpi_hdr->dmabuf = dmabuf;
7578         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
7579         rpi_hdr->page_count = 1;
7580         spin_lock_irq(&phba->hbalock);
7581
7582         /* The rpi_hdr stores the logical index only. */
7583         rpi_hdr->start_rpi = curr_rpi_range;
7584         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
7585         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
7586
7587         spin_unlock_irq(&phba->hbalock);
7588         return rpi_hdr;
7589
7590  err_free_coherent:
7591         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
7592                           dmabuf->virt, dmabuf->phys);
7593  err_free_dmabuf:
7594         kfree(dmabuf);
7595         return NULL;
7596 }
7597
7598 /**
7599  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
7600  * @phba: pointer to lpfc hba data structure.
7601  *
7602  * This routine is invoked to remove all memory resources allocated
7603  * to support rpis for SLI4 ports not supporting extents. This routine
7604  * presumes the caller has released all rpis consumed by fabric or port
7605  * logins and is prepared to have the header pages removed.
7606  **/
7607 void
7608 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
7609 {
7610         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
7611
7612         if (!phba->sli4_hba.rpi_hdrs_in_use)
7613                 goto exit;
7614
7615         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
7616                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
7617                 list_del(&rpi_hdr->list);
7618                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
7619                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
7620                 kfree(rpi_hdr->dmabuf);
7621                 kfree(rpi_hdr);
7622         }
7623  exit:
7624         /* There are no rpis available to the port now. */
7625         phba->sli4_hba.next_rpi = 0;
7626 }
7627
7628 /**
7629  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
7630  * @pdev: pointer to pci device data structure.
7631  *
7632  * This routine is invoked to allocate the driver hba data structure for an
7633  * HBA device. If the allocation is successful, the phba reference to the
7634  * PCI device data structure is set.
7635  *
7636  * Return codes
7637  *      pointer to @phba - successful
7638  *      NULL - error
7639  **/
7640 static struct lpfc_hba *
7641 lpfc_hba_alloc(struct pci_dev *pdev)
7642 {
7643         struct lpfc_hba *phba;
7644
7645         /* Allocate memory for HBA structure */
7646         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
7647         if (!phba) {
7648                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
7649                 return NULL;
7650         }
7651
7652         /* Set reference to PCI device in HBA structure */
7653         phba->pcidev = pdev;
7654
7655         /* Assign an unused board number */
7656         phba->brd_no = lpfc_get_instance();
7657         if (phba->brd_no < 0) {
7658                 kfree(phba);
7659                 return NULL;
7660         }
7661         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
7662
7663         spin_lock_init(&phba->ct_ev_lock);
7664         INIT_LIST_HEAD(&phba->ct_ev_waiters);
7665
7666         return phba;
7667 }
7668
7669 /**
7670  * lpfc_hba_free - Free driver hba data structure with a device.
7671  * @phba: pointer to lpfc hba data structure.
7672  *
7673  * This routine is invoked to free the driver hba data structure with an
7674  * HBA device.
7675  **/
7676 static void
7677 lpfc_hba_free(struct lpfc_hba *phba)
7678 {
7679         if (phba->sli_rev == LPFC_SLI_REV4)
7680                 kfree(phba->sli4_hba.hdwq);
7681
7682         /* Release the driver assigned board number */
7683         idr_remove(&lpfc_hba_index, phba->brd_no);
7684
7685         /* Free memory allocated with sli3 rings */
7686         kfree(phba->sli.sli3_ring);
7687         phba->sli.sli3_ring = NULL;
7688
7689         kfree(phba);
7690         return;
7691 }
7692
7693 /**
7694  * lpfc_create_shost - Create hba physical port with associated scsi host.
7695  * @phba: pointer to lpfc hba data structure.
7696  *
7697  * This routine is invoked to create HBA physical port and associate a SCSI
7698  * host with it.
7699  *
7700  * Return codes
7701  *      0 - successful
7702  *      other values - error
7703  **/
7704 static int
7705 lpfc_create_shost(struct lpfc_hba *phba)
7706 {
7707         struct lpfc_vport *vport;
7708         struct Scsi_Host  *shost;
7709
7710         /* Initialize HBA FC structure */
7711         phba->fc_edtov = FF_DEF_EDTOV;
7712         phba->fc_ratov = FF_DEF_RATOV;
7713         phba->fc_altov = FF_DEF_ALTOV;
7714         phba->fc_arbtov = FF_DEF_ARBTOV;
7715
7716         atomic_set(&phba->sdev_cnt, 0);
7717         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
7718         if (!vport)
7719                 return -ENODEV;
7720
7721         shost = lpfc_shost_from_vport(vport);
7722         phba->pport = vport;
7723
7724         if (phba->nvmet_support) {
7725                 /* Only 1 vport (pport) will support NVME target */
7726                 phba->targetport = NULL;
7727                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
7728                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME_DISC,
7729                                 "6076 NVME Target Found\n");
7730         }
7731
7732         lpfc_debugfs_initialize(vport);
7733         /* Put reference to SCSI host to driver's device private data */
7734         pci_set_drvdata(phba->pcidev, shost);
7735
7736         /*
7737          * At this point we are fully registered with PSA. In addition,
7738          * any initial discovery should be completed.
7739          */
7740         vport->load_flag |= FC_ALLOW_FDMI;
7741         if (phba->cfg_enable_SmartSAN ||
7742             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
7743
7744                 /* Setup appropriate attribute masks */
7745                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
7746                 if (phba->cfg_enable_SmartSAN)
7747                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
7748                 else
7749                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
7750         }
7751         return 0;
7752 }
7753
7754 /**
7755  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
7756  * @phba: pointer to lpfc hba data structure.
7757  *
7758  * This routine is invoked to destroy HBA physical port and the associated
7759  * SCSI host.
7760  **/
7761 static void
7762 lpfc_destroy_shost(struct lpfc_hba *phba)
7763 {
7764         struct lpfc_vport *vport = phba->pport;
7765
7766         /* Destroy physical port that associated with the SCSI host */
7767         destroy_port(vport);
7768
7769         return;
7770 }
7771
7772 /**
7773  * lpfc_setup_bg - Setup Block guard structures and debug areas.
7774  * @phba: pointer to lpfc hba data structure.
7775  * @shost: the shost to be used to detect Block guard settings.
7776  *
7777  * This routine sets up the local Block guard protocol settings for @shost.
7778  * This routine also allocates memory for debugging bg buffers.
7779  **/
7780 static void
7781 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
7782 {
7783         uint32_t old_mask;
7784         uint32_t old_guard;
7785
7786         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7787                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7788                                 "1478 Registering BlockGuard with the "
7789                                 "SCSI layer\n");
7790
7791                 old_mask = phba->cfg_prot_mask;
7792                 old_guard = phba->cfg_prot_guard;
7793
7794                 /* Only allow supported values */
7795                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
7796                         SHOST_DIX_TYPE0_PROTECTION |
7797                         SHOST_DIX_TYPE1_PROTECTION);
7798                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
7799                                          SHOST_DIX_GUARD_CRC);
7800
7801                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
7802                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
7803                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
7804
7805                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7806                         if ((old_mask != phba->cfg_prot_mask) ||
7807                                 (old_guard != phba->cfg_prot_guard))
7808                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7809                                         "1475 Registering BlockGuard with the "
7810                                         "SCSI layer: mask %d  guard %d\n",
7811                                         phba->cfg_prot_mask,
7812                                         phba->cfg_prot_guard);
7813
7814                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
7815                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
7816                 } else
7817                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7818                                 "1479 Not Registering BlockGuard with the SCSI "
7819                                 "layer, Bad protection parameters: %d %d\n",
7820                                 old_mask, old_guard);
7821         }
7822 }
7823
7824 /**
7825  * lpfc_post_init_setup - Perform necessary device post initialization setup.
7826  * @phba: pointer to lpfc hba data structure.
7827  *
7828  * This routine is invoked to perform all the necessary post initialization
7829  * setup for the device.
7830  **/
7831 static void
7832 lpfc_post_init_setup(struct lpfc_hba *phba)
7833 {
7834         struct Scsi_Host  *shost;
7835         struct lpfc_adapter_event_header adapter_event;
7836
7837         /* Get the default values for Model Name and Description */
7838         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7839
7840         /*
7841          * hba setup may have changed the hba_queue_depth so we need to
7842          * adjust the value of can_queue.
7843          */
7844         shost = pci_get_drvdata(phba->pcidev);
7845         shost->can_queue = phba->cfg_hba_queue_depth - 10;
7846
7847         lpfc_host_attrib_init(shost);
7848
7849         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7850                 spin_lock_irq(shost->host_lock);
7851                 lpfc_poll_start_timer(phba);
7852                 spin_unlock_irq(shost->host_lock);
7853         }
7854
7855         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7856                         "0428 Perform SCSI scan\n");
7857         /* Send board arrival event to upper layer */
7858         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7859         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7860         fc_host_post_vendor_event(shost, fc_get_event_number(),
7861                                   sizeof(adapter_event),
7862                                   (char *) &adapter_event,
7863                                   LPFC_NL_VENDOR_ID);
7864         return;
7865 }
7866
7867 /**
7868  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7869  * @phba: pointer to lpfc hba data structure.
7870  *
7871  * This routine is invoked to set up the PCI device memory space for device
7872  * with SLI-3 interface spec.
7873  *
7874  * Return codes
7875  *      0 - successful
7876  *      other values - error
7877  **/
7878 static int
7879 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7880 {
7881         struct pci_dev *pdev = phba->pcidev;
7882         unsigned long bar0map_len, bar2map_len;
7883         int i, hbq_count;
7884         void *ptr;
7885         int error;
7886
7887         if (!pdev)
7888                 return -ENODEV;
7889
7890         /* Set the device DMA mask size */
7891         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
7892         if (error)
7893                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
7894         if (error)
7895                 return error;
7896         error = -ENODEV;
7897
7898         /* Get the bus address of Bar0 and Bar2 and the number of bytes
7899          * required by each mapping.
7900          */
7901         phba->pci_bar0_map = pci_resource_start(pdev, 0);
7902         bar0map_len = pci_resource_len(pdev, 0);
7903
7904         phba->pci_bar2_map = pci_resource_start(pdev, 2);
7905         bar2map_len = pci_resource_len(pdev, 2);
7906
7907         /* Map HBA SLIM to a kernel virtual address. */
7908         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7909         if (!phba->slim_memmap_p) {
7910                 dev_printk(KERN_ERR, &pdev->dev,
7911                            "ioremap failed for SLIM memory.\n");
7912                 goto out;
7913         }
7914
7915         /* Map HBA Control Registers to a kernel virtual address. */
7916         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7917         if (!phba->ctrl_regs_memmap_p) {
7918                 dev_printk(KERN_ERR, &pdev->dev,
7919                            "ioremap failed for HBA control registers.\n");
7920                 goto out_iounmap_slim;
7921         }
7922
7923         /* Allocate memory for SLI-2 structures */
7924         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7925                                                &phba->slim2p.phys, GFP_KERNEL);
7926         if (!phba->slim2p.virt)
7927                 goto out_iounmap;
7928
7929         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7930         phba->mbox_ext = (phba->slim2p.virt +
7931                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7932         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7933         phba->IOCBs = (phba->slim2p.virt +
7934                        offsetof(struct lpfc_sli2_slim, IOCBs));
7935
7936         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7937                                                  lpfc_sli_hbq_size(),
7938                                                  &phba->hbqslimp.phys,
7939                                                  GFP_KERNEL);
7940         if (!phba->hbqslimp.virt)
7941                 goto out_free_slim;
7942
7943         hbq_count = lpfc_sli_hbq_count();
7944         ptr = phba->hbqslimp.virt;
7945         for (i = 0; i < hbq_count; ++i) {
7946                 phba->hbqs[i].hbq_virt = ptr;
7947                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7948                 ptr += (lpfc_hbq_defs[i]->entry_count *
7949                         sizeof(struct lpfc_hbq_entry));
7950         }
7951         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7952         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7953
7954         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7955
7956         phba->MBslimaddr = phba->slim_memmap_p;
7957         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7958         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7959         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7960         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7961
7962         return 0;
7963
7964 out_free_slim:
7965         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7966                           phba->slim2p.virt, phba->slim2p.phys);
7967 out_iounmap:
7968         iounmap(phba->ctrl_regs_memmap_p);
7969 out_iounmap_slim:
7970         iounmap(phba->slim_memmap_p);
7971 out:
7972         return error;
7973 }
7974
7975 /**
7976  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7977  * @phba: pointer to lpfc hba data structure.
7978  *
7979  * This routine is invoked to unset the PCI device memory space for device
7980  * with SLI-3 interface spec.
7981  **/
7982 static void
7983 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7984 {
7985         struct pci_dev *pdev;
7986
7987         /* Obtain PCI device reference */
7988         if (!phba->pcidev)
7989                 return;
7990         else
7991                 pdev = phba->pcidev;
7992
7993         /* Free coherent DMA memory allocated */
7994         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7995                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7996         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7997                           phba->slim2p.virt, phba->slim2p.phys);
7998
7999         /* I/O memory unmap */
8000         iounmap(phba->ctrl_regs_memmap_p);
8001         iounmap(phba->slim_memmap_p);
8002
8003         return;
8004 }
8005
8006 /**
8007  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
8008  * @phba: pointer to lpfc hba data structure.
8009  *
8010  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
8011  * done and check status.
8012  *
8013  * Return 0 if successful, otherwise -ENODEV.
8014  **/
8015 int
8016 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
8017 {
8018         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
8019         struct lpfc_register reg_data;
8020         int i, port_error = 0;
8021         uint32_t if_type;
8022
8023         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
8024         memset(&reg_data, 0, sizeof(reg_data));
8025         if (!phba->sli4_hba.PSMPHRregaddr)
8026                 return -ENODEV;
8027
8028         /* Wait up to 30 seconds for the SLI Port POST done and ready */
8029         for (i = 0; i < 3000; i++) {
8030                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
8031                         &portsmphr_reg.word0) ||
8032                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
8033                         /* Port has a fatal POST error, break out */
8034                         port_error = -ENODEV;
8035                         break;
8036                 }
8037                 if (LPFC_POST_STAGE_PORT_READY ==
8038                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
8039                         break;
8040                 msleep(10);
8041         }
8042
8043         /*
8044          * If there was a port error during POST, then don't proceed with
8045          * other register reads as the data may not be valid.  Just exit.
8046          */
8047         if (port_error) {
8048                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8049                         "1408 Port Failed POST - portsmphr=0x%x, "
8050                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
8051                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
8052                         portsmphr_reg.word0,
8053                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
8054                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
8055                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
8056                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
8057                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
8058                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
8059                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
8060                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
8061         } else {
8062                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8063                                 "2534 Device Info: SLIFamily=0x%x, "
8064                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
8065                                 "SLIHint_2=0x%x, FT=0x%x\n",
8066                                 bf_get(lpfc_sli_intf_sli_family,
8067                                        &phba->sli4_hba.sli_intf),
8068                                 bf_get(lpfc_sli_intf_slirev,
8069                                        &phba->sli4_hba.sli_intf),
8070                                 bf_get(lpfc_sli_intf_if_type,
8071                                        &phba->sli4_hba.sli_intf),
8072                                 bf_get(lpfc_sli_intf_sli_hint1,
8073                                        &phba->sli4_hba.sli_intf),
8074                                 bf_get(lpfc_sli_intf_sli_hint2,
8075                                        &phba->sli4_hba.sli_intf),
8076                                 bf_get(lpfc_sli_intf_func_type,
8077                                        &phba->sli4_hba.sli_intf));
8078                 /*
8079                  * Check for other Port errors during the initialization
8080                  * process.  Fail the load if the port did not come up
8081                  * correctly.
8082                  */
8083                 if_type = bf_get(lpfc_sli_intf_if_type,
8084                                  &phba->sli4_hba.sli_intf);
8085                 switch (if_type) {
8086                 case LPFC_SLI_INTF_IF_TYPE_0:
8087                         phba->sli4_hba.ue_mask_lo =
8088                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
8089                         phba->sli4_hba.ue_mask_hi =
8090                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
8091                         uerrlo_reg.word0 =
8092                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
8093                         uerrhi_reg.word0 =
8094                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
8095                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
8096                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
8097                                 lpfc_printf_log(phba, KERN_ERR,
8098                                                 LOG_TRACE_EVENT,
8099                                                 "1422 Unrecoverable Error "
8100                                                 "Detected during POST "
8101                                                 "uerr_lo_reg=0x%x, "
8102                                                 "uerr_hi_reg=0x%x, "
8103                                                 "ue_mask_lo_reg=0x%x, "
8104                                                 "ue_mask_hi_reg=0x%x\n",
8105                                                 uerrlo_reg.word0,
8106                                                 uerrhi_reg.word0,
8107                                                 phba->sli4_hba.ue_mask_lo,
8108                                                 phba->sli4_hba.ue_mask_hi);
8109                                 port_error = -ENODEV;
8110                         }
8111                         break;
8112                 case LPFC_SLI_INTF_IF_TYPE_2:
8113                 case LPFC_SLI_INTF_IF_TYPE_6:
8114                         /* Final checks.  The port status should be clean. */
8115                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
8116                                 &reg_data.word0) ||
8117                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
8118                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
8119                                 phba->work_status[0] =
8120                                         readl(phba->sli4_hba.u.if_type2.
8121                                               ERR1regaddr);
8122                                 phba->work_status[1] =
8123                                         readl(phba->sli4_hba.u.if_type2.
8124                                               ERR2regaddr);
8125                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8126                                         "2888 Unrecoverable port error "
8127                                         "following POST: port status reg "
8128                                         "0x%x, port_smphr reg 0x%x, "
8129                                         "error 1=0x%x, error 2=0x%x\n",
8130                                         reg_data.word0,
8131                                         portsmphr_reg.word0,
8132                                         phba->work_status[0],
8133                                         phba->work_status[1]);
8134                                 port_error = -ENODEV;
8135                         }
8136                         break;
8137                 case LPFC_SLI_INTF_IF_TYPE_1:
8138                 default:
8139                         break;
8140                 }
8141         }
8142         return port_error;
8143 }
8144
8145 /**
8146  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
8147  * @phba: pointer to lpfc hba data structure.
8148  * @if_type:  The SLI4 interface type getting configured.
8149  *
8150  * This routine is invoked to set up SLI4 BAR0 PCI config space register
8151  * memory map.
8152  **/
8153 static void
8154 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8155 {
8156         switch (if_type) {
8157         case LPFC_SLI_INTF_IF_TYPE_0:
8158                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
8159                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
8160                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
8161                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
8162                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
8163                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
8164                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
8165                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
8166                 phba->sli4_hba.SLIINTFregaddr =
8167                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
8168                 break;
8169         case LPFC_SLI_INTF_IF_TYPE_2:
8170                 phba->sli4_hba.u.if_type2.EQDregaddr =
8171                         phba->sli4_hba.conf_regs_memmap_p +
8172                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8173                 phba->sli4_hba.u.if_type2.ERR1regaddr =
8174                         phba->sli4_hba.conf_regs_memmap_p +
8175                                                 LPFC_CTL_PORT_ER1_OFFSET;
8176                 phba->sli4_hba.u.if_type2.ERR2regaddr =
8177                         phba->sli4_hba.conf_regs_memmap_p +
8178                                                 LPFC_CTL_PORT_ER2_OFFSET;
8179                 phba->sli4_hba.u.if_type2.CTRLregaddr =
8180                         phba->sli4_hba.conf_regs_memmap_p +
8181                                                 LPFC_CTL_PORT_CTL_OFFSET;
8182                 phba->sli4_hba.u.if_type2.STATUSregaddr =
8183                         phba->sli4_hba.conf_regs_memmap_p +
8184                                                 LPFC_CTL_PORT_STA_OFFSET;
8185                 phba->sli4_hba.SLIINTFregaddr =
8186                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
8187                 phba->sli4_hba.PSMPHRregaddr =
8188                         phba->sli4_hba.conf_regs_memmap_p +
8189                                                 LPFC_CTL_PORT_SEM_OFFSET;
8190                 phba->sli4_hba.RQDBregaddr =
8191                         phba->sli4_hba.conf_regs_memmap_p +
8192                                                 LPFC_ULP0_RQ_DOORBELL;
8193                 phba->sli4_hba.WQDBregaddr =
8194                         phba->sli4_hba.conf_regs_memmap_p +
8195                                                 LPFC_ULP0_WQ_DOORBELL;
8196                 phba->sli4_hba.CQDBregaddr =
8197                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
8198                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8199                 phba->sli4_hba.MQDBregaddr =
8200                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
8201                 phba->sli4_hba.BMBXregaddr =
8202                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8203                 break;
8204         case LPFC_SLI_INTF_IF_TYPE_6:
8205                 phba->sli4_hba.u.if_type2.EQDregaddr =
8206                         phba->sli4_hba.conf_regs_memmap_p +
8207                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8208                 phba->sli4_hba.u.if_type2.ERR1regaddr =
8209                         phba->sli4_hba.conf_regs_memmap_p +
8210                                                 LPFC_CTL_PORT_ER1_OFFSET;
8211                 phba->sli4_hba.u.if_type2.ERR2regaddr =
8212                         phba->sli4_hba.conf_regs_memmap_p +
8213                                                 LPFC_CTL_PORT_ER2_OFFSET;
8214                 phba->sli4_hba.u.if_type2.CTRLregaddr =
8215                         phba->sli4_hba.conf_regs_memmap_p +
8216                                                 LPFC_CTL_PORT_CTL_OFFSET;
8217                 phba->sli4_hba.u.if_type2.STATUSregaddr =
8218                         phba->sli4_hba.conf_regs_memmap_p +
8219                                                 LPFC_CTL_PORT_STA_OFFSET;
8220                 phba->sli4_hba.PSMPHRregaddr =
8221                         phba->sli4_hba.conf_regs_memmap_p +
8222                                                 LPFC_CTL_PORT_SEM_OFFSET;
8223                 phba->sli4_hba.BMBXregaddr =
8224                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8225                 break;
8226         case LPFC_SLI_INTF_IF_TYPE_1:
8227         default:
8228                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8229                            "FATAL - unsupported SLI4 interface type - %d\n",
8230                            if_type);
8231                 break;
8232         }
8233 }
8234
8235 /**
8236  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
8237  * @phba: pointer to lpfc hba data structure.
8238  * @if_type: sli if type to operate on.
8239  *
8240  * This routine is invoked to set up SLI4 BAR1 register memory map.
8241  **/
8242 static void
8243 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8244 {
8245         switch (if_type) {
8246         case LPFC_SLI_INTF_IF_TYPE_0:
8247                 phba->sli4_hba.PSMPHRregaddr =
8248                         phba->sli4_hba.ctrl_regs_memmap_p +
8249                         LPFC_SLIPORT_IF0_SMPHR;
8250                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8251                         LPFC_HST_ISR0;
8252                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8253                         LPFC_HST_IMR0;
8254                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8255                         LPFC_HST_ISCR0;
8256                 break;
8257         case LPFC_SLI_INTF_IF_TYPE_6:
8258                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8259                         LPFC_IF6_RQ_DOORBELL;
8260                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8261                         LPFC_IF6_WQ_DOORBELL;
8262                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8263                         LPFC_IF6_CQ_DOORBELL;
8264                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8265                         LPFC_IF6_EQ_DOORBELL;
8266                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8267                         LPFC_IF6_MQ_DOORBELL;
8268                 break;
8269         case LPFC_SLI_INTF_IF_TYPE_2:
8270         case LPFC_SLI_INTF_IF_TYPE_1:
8271         default:
8272                 dev_err(&phba->pcidev->dev,
8273                            "FATAL - unsupported SLI4 interface type - %d\n",
8274                            if_type);
8275                 break;
8276         }
8277 }
8278
8279 /**
8280  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
8281  * @phba: pointer to lpfc hba data structure.
8282  * @vf: virtual function number
8283  *
8284  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
8285  * based on the given viftual function number, @vf.
8286  *
8287  * Return 0 if successful, otherwise -ENODEV.
8288  **/
8289 static int
8290 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
8291 {
8292         if (vf > LPFC_VIR_FUNC_MAX)
8293                 return -ENODEV;
8294
8295         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8296                                 vf * LPFC_VFR_PAGE_SIZE +
8297                                         LPFC_ULP0_RQ_DOORBELL);
8298         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8299                                 vf * LPFC_VFR_PAGE_SIZE +
8300                                         LPFC_ULP0_WQ_DOORBELL);
8301         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8302                                 vf * LPFC_VFR_PAGE_SIZE +
8303                                         LPFC_EQCQ_DOORBELL);
8304         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8305         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8306                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
8307         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8308                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
8309         return 0;
8310 }
8311
8312 /**
8313  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
8314  * @phba: pointer to lpfc hba data structure.
8315  *
8316  * This routine is invoked to create the bootstrap mailbox
8317  * region consistent with the SLI-4 interface spec.  This
8318  * routine allocates all memory necessary to communicate
8319  * mailbox commands to the port and sets up all alignment
8320  * needs.  No locks are expected to be held when calling
8321  * this routine.
8322  *
8323  * Return codes
8324  *      0 - successful
8325  *      -ENOMEM - could not allocated memory.
8326  **/
8327 static int
8328 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
8329 {
8330         uint32_t bmbx_size;
8331         struct lpfc_dmabuf *dmabuf;
8332         struct dma_address *dma_address;
8333         uint32_t pa_addr;
8334         uint64_t phys_addr;
8335
8336         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8337         if (!dmabuf)
8338                 return -ENOMEM;
8339
8340         /*
8341          * The bootstrap mailbox region is comprised of 2 parts
8342          * plus an alignment restriction of 16 bytes.
8343          */
8344         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
8345         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
8346                                           &dmabuf->phys, GFP_KERNEL);
8347         if (!dmabuf->virt) {
8348                 kfree(dmabuf);
8349                 return -ENOMEM;
8350         }
8351
8352         /*
8353          * Initialize the bootstrap mailbox pointers now so that the register
8354          * operations are simple later.  The mailbox dma address is required
8355          * to be 16-byte aligned.  Also align the virtual memory as each
8356          * maibox is copied into the bmbx mailbox region before issuing the
8357          * command to the port.
8358          */
8359         phba->sli4_hba.bmbx.dmabuf = dmabuf;
8360         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
8361
8362         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
8363                                               LPFC_ALIGN_16_BYTE);
8364         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
8365                                               LPFC_ALIGN_16_BYTE);
8366
8367         /*
8368          * Set the high and low physical addresses now.  The SLI4 alignment
8369          * requirement is 16 bytes and the mailbox is posted to the port
8370          * as two 30-bit addresses.  The other data is a bit marking whether
8371          * the 30-bit address is the high or low address.
8372          * Upcast bmbx aphys to 64bits so shift instruction compiles
8373          * clean on 32 bit machines.
8374          */
8375         dma_address = &phba->sli4_hba.bmbx.dma_address;
8376         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
8377         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
8378         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
8379                                            LPFC_BMBX_BIT1_ADDR_HI);
8380
8381         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
8382         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
8383                                            LPFC_BMBX_BIT1_ADDR_LO);
8384         return 0;
8385 }
8386
8387 /**
8388  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
8389  * @phba: pointer to lpfc hba data structure.
8390  *
8391  * This routine is invoked to teardown the bootstrap mailbox
8392  * region and release all host resources. This routine requires
8393  * the caller to ensure all mailbox commands recovered, no
8394  * additional mailbox comands are sent, and interrupts are disabled
8395  * before calling this routine.
8396  *
8397  **/
8398 static void
8399 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
8400 {
8401         dma_free_coherent(&phba->pcidev->dev,
8402                           phba->sli4_hba.bmbx.bmbx_size,
8403                           phba->sli4_hba.bmbx.dmabuf->virt,
8404                           phba->sli4_hba.bmbx.dmabuf->phys);
8405
8406         kfree(phba->sli4_hba.bmbx.dmabuf);
8407         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
8408 }
8409
8410 static const char * const lpfc_topo_to_str[] = {
8411         "Loop then P2P",
8412         "Loopback",
8413         "P2P Only",
8414         "Unsupported",
8415         "Loop Only",
8416         "Unsupported",
8417         "P2P then Loop",
8418 };
8419
8420 #define LINK_FLAGS_DEF  0x0
8421 #define LINK_FLAGS_P2P  0x1
8422 #define LINK_FLAGS_LOOP 0x2
8423 /**
8424  * lpfc_map_topology - Map the topology read from READ_CONFIG
8425  * @phba: pointer to lpfc hba data structure.
8426  * @rd_config: pointer to read config data
8427  *
8428  * This routine is invoked to map the topology values as read
8429  * from the read config mailbox command. If the persistent
8430  * topology feature is supported, the firmware will provide the
8431  * saved topology information to be used in INIT_LINK
8432  **/
8433 static void
8434 lpfc_map_topology(struct lpfc_hba *phba, struct lpfc_mbx_read_config *rd_config)
8435 {
8436         u8 ptv, tf, pt;
8437
8438         ptv = bf_get(lpfc_mbx_rd_conf_ptv, rd_config);
8439         tf = bf_get(lpfc_mbx_rd_conf_tf, rd_config);
8440         pt = bf_get(lpfc_mbx_rd_conf_pt, rd_config);
8441
8442         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8443                         "2027 Read Config Data : ptv:0x%x, tf:0x%x pt:0x%x",
8444                          ptv, tf, pt);
8445         if (!ptv) {
8446                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8447                                 "2019 FW does not support persistent topology "
8448                                 "Using driver parameter defined value [%s]",
8449                                 lpfc_topo_to_str[phba->cfg_topology]);
8450                 return;
8451         }
8452         /* FW supports persistent topology - override module parameter value */
8453         phba->hba_flag |= HBA_PERSISTENT_TOPO;
8454         switch (phba->pcidev->device) {
8455         case PCI_DEVICE_ID_LANCER_G7_FC:
8456         case PCI_DEVICE_ID_LANCER_G6_FC:
8457                 if (!tf) {
8458                         phba->cfg_topology = ((pt == LINK_FLAGS_LOOP)
8459                                         ? FLAGS_TOPOLOGY_MODE_LOOP
8460                                         : FLAGS_TOPOLOGY_MODE_PT_PT);
8461                 } else {
8462                         phba->hba_flag &= ~HBA_PERSISTENT_TOPO;
8463                 }
8464                 break;
8465         default:        /* G5 */
8466                 if (tf) {
8467                         /* If topology failover set - pt is '0' or '1' */
8468                         phba->cfg_topology = (pt ? FLAGS_TOPOLOGY_MODE_PT_LOOP :
8469                                               FLAGS_TOPOLOGY_MODE_LOOP_PT);
8470                 } else {
8471                         phba->cfg_topology = ((pt == LINK_FLAGS_P2P)
8472                                         ? FLAGS_TOPOLOGY_MODE_PT_PT
8473                                         : FLAGS_TOPOLOGY_MODE_LOOP);
8474                 }
8475                 break;
8476         }
8477         if (phba->hba_flag & HBA_PERSISTENT_TOPO) {
8478                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8479                                 "2020 Using persistent topology value [%s]",
8480                                 lpfc_topo_to_str[phba->cfg_topology]);
8481         } else {
8482                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8483                                 "2021 Invalid topology values from FW "
8484                                 "Using driver parameter defined value [%s]",
8485                                 lpfc_topo_to_str[phba->cfg_topology]);
8486         }
8487 }
8488
8489 /**
8490  * lpfc_sli4_read_config - Get the config parameters.
8491  * @phba: pointer to lpfc hba data structure.
8492  *
8493  * This routine is invoked to read the configuration parameters from the HBA.
8494  * The configuration parameters are used to set the base and maximum values
8495  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
8496  * allocation for the port.
8497  *
8498  * Return codes
8499  *      0 - successful
8500  *      -ENOMEM - No available memory
8501  *      -EIO - The mailbox failed to complete successfully.
8502  **/
8503 int
8504 lpfc_sli4_read_config(struct lpfc_hba *phba)
8505 {
8506         LPFC_MBOXQ_t *pmb;
8507         struct lpfc_mbx_read_config *rd_config;
8508         union  lpfc_sli4_cfg_shdr *shdr;
8509         uint32_t shdr_status, shdr_add_status;
8510         struct lpfc_mbx_get_func_cfg *get_func_cfg;
8511         struct lpfc_rsrc_desc_fcfcoe *desc;
8512         char *pdesc_0;
8513         uint16_t forced_link_speed;
8514         uint32_t if_type, qmin;
8515         int length, i, rc = 0, rc2;
8516
8517         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8518         if (!pmb) {
8519                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8520                                 "2011 Unable to allocate memory for issuing "
8521                                 "SLI_CONFIG_SPECIAL mailbox command\n");
8522                 return -ENOMEM;
8523         }
8524
8525         lpfc_read_config(phba, pmb);
8526
8527         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8528         if (rc != MBX_SUCCESS) {
8529                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8530                                 "2012 Mailbox failed , mbxCmd x%x "
8531                                 "READ_CONFIG, mbxStatus x%x\n",
8532                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
8533                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
8534                 rc = -EIO;
8535         } else {
8536                 rd_config = &pmb->u.mqe.un.rd_config;
8537                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
8538                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
8539                         phba->sli4_hba.lnk_info.lnk_tp =
8540                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
8541                         phba->sli4_hba.lnk_info.lnk_no =
8542                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
8543                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8544                                         "3081 lnk_type:%d, lnk_numb:%d\n",
8545                                         phba->sli4_hba.lnk_info.lnk_tp,
8546                                         phba->sli4_hba.lnk_info.lnk_no);
8547                 } else
8548                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8549                                         "3082 Mailbox (x%x) returned ldv:x0\n",
8550                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
8551                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
8552                         phba->bbcredit_support = 1;
8553                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
8554                 }
8555
8556                 phba->sli4_hba.conf_trunk =
8557                         bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
8558                 phba->sli4_hba.extents_in_use =
8559                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
8560                 phba->sli4_hba.max_cfg_param.max_xri =
8561                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
8562                 /* Reduce resource usage in kdump environment */
8563                 if (is_kdump_kernel() &&
8564                     phba->sli4_hba.max_cfg_param.max_xri > 512)
8565                         phba->sli4_hba.max_cfg_param.max_xri = 512;
8566                 phba->sli4_hba.max_cfg_param.xri_base =
8567                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
8568                 phba->sli4_hba.max_cfg_param.max_vpi =
8569                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
8570                 /* Limit the max we support */
8571                 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
8572                         phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
8573                 phba->sli4_hba.max_cfg_param.vpi_base =
8574                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
8575                 phba->sli4_hba.max_cfg_param.max_rpi =
8576                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
8577                 phba->sli4_hba.max_cfg_param.rpi_base =
8578                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
8579                 phba->sli4_hba.max_cfg_param.max_vfi =
8580                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
8581                 phba->sli4_hba.max_cfg_param.vfi_base =
8582                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
8583                 phba->sli4_hba.max_cfg_param.max_fcfi =
8584                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
8585                 phba->sli4_hba.max_cfg_param.max_eq =
8586                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
8587                 phba->sli4_hba.max_cfg_param.max_rq =
8588                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
8589                 phba->sli4_hba.max_cfg_param.max_wq =
8590                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
8591                 phba->sli4_hba.max_cfg_param.max_cq =
8592                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
8593                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
8594                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
8595                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
8596                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
8597                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
8598                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
8599                 phba->max_vports = phba->max_vpi;
8600                 lpfc_map_topology(phba, rd_config);
8601                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8602                                 "2003 cfg params Extents? %d "
8603                                 "XRI(B:%d M:%d), "
8604                                 "VPI(B:%d M:%d) "
8605                                 "VFI(B:%d M:%d) "
8606                                 "RPI(B:%d M:%d) "
8607                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d lmt:x%x\n",
8608                                 phba->sli4_hba.extents_in_use,
8609                                 phba->sli4_hba.max_cfg_param.xri_base,
8610                                 phba->sli4_hba.max_cfg_param.max_xri,
8611                                 phba->sli4_hba.max_cfg_param.vpi_base,
8612                                 phba->sli4_hba.max_cfg_param.max_vpi,
8613                                 phba->sli4_hba.max_cfg_param.vfi_base,
8614                                 phba->sli4_hba.max_cfg_param.max_vfi,
8615                                 phba->sli4_hba.max_cfg_param.rpi_base,
8616                                 phba->sli4_hba.max_cfg_param.max_rpi,
8617                                 phba->sli4_hba.max_cfg_param.max_fcfi,
8618                                 phba->sli4_hba.max_cfg_param.max_eq,
8619                                 phba->sli4_hba.max_cfg_param.max_cq,
8620                                 phba->sli4_hba.max_cfg_param.max_wq,
8621                                 phba->sli4_hba.max_cfg_param.max_rq,
8622                                 phba->lmt);
8623
8624                 /*
8625                  * Calculate queue resources based on how
8626                  * many WQ/CQ/EQs are available.
8627                  */
8628                 qmin = phba->sli4_hba.max_cfg_param.max_wq;
8629                 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
8630                         qmin = phba->sli4_hba.max_cfg_param.max_cq;
8631                 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
8632                         qmin = phba->sli4_hba.max_cfg_param.max_eq;
8633                 /*
8634                  * Whats left after this can go toward NVME / FCP.
8635                  * The minus 4 accounts for ELS, NVME LS, MBOX
8636                  * plus one extra. When configured for
8637                  * NVMET, FCP io channel WQs are not created.
8638                  */
8639                 qmin -= 4;
8640
8641                 /* Check to see if there is enough for NVME */
8642                 if ((phba->cfg_irq_chann > qmin) ||
8643                     (phba->cfg_hdw_queue > qmin)) {
8644                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8645                                         "2005 Reducing Queues - "
8646                                         "FW resource limitation: "
8647                                         "WQ %d CQ %d EQ %d: min %d: "
8648                                         "IRQ %d HDWQ %d\n",
8649                                         phba->sli4_hba.max_cfg_param.max_wq,
8650                                         phba->sli4_hba.max_cfg_param.max_cq,
8651                                         phba->sli4_hba.max_cfg_param.max_eq,
8652                                         qmin, phba->cfg_irq_chann,
8653                                         phba->cfg_hdw_queue);
8654
8655                         if (phba->cfg_irq_chann > qmin)
8656                                 phba->cfg_irq_chann = qmin;
8657                         if (phba->cfg_hdw_queue > qmin)
8658                                 phba->cfg_hdw_queue = qmin;
8659                 }
8660         }
8661
8662         if (rc)
8663                 goto read_cfg_out;
8664
8665         /* Update link speed if forced link speed is supported */
8666         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8667         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
8668                 forced_link_speed =
8669                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
8670                 if (forced_link_speed) {
8671                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
8672
8673                         switch (forced_link_speed) {
8674                         case LINK_SPEED_1G:
8675                                 phba->cfg_link_speed =
8676                                         LPFC_USER_LINK_SPEED_1G;
8677                                 break;
8678                         case LINK_SPEED_2G:
8679                                 phba->cfg_link_speed =
8680                                         LPFC_USER_LINK_SPEED_2G;
8681                                 break;
8682                         case LINK_SPEED_4G:
8683                                 phba->cfg_link_speed =
8684                                         LPFC_USER_LINK_SPEED_4G;
8685                                 break;
8686                         case LINK_SPEED_8G:
8687                                 phba->cfg_link_speed =
8688                                         LPFC_USER_LINK_SPEED_8G;
8689                                 break;
8690                         case LINK_SPEED_10G:
8691                                 phba->cfg_link_speed =
8692                                         LPFC_USER_LINK_SPEED_10G;
8693                                 break;
8694                         case LINK_SPEED_16G:
8695                                 phba->cfg_link_speed =
8696                                         LPFC_USER_LINK_SPEED_16G;
8697                                 break;
8698                         case LINK_SPEED_32G:
8699                                 phba->cfg_link_speed =
8700                                         LPFC_USER_LINK_SPEED_32G;
8701                                 break;
8702                         case LINK_SPEED_64G:
8703                                 phba->cfg_link_speed =
8704                                         LPFC_USER_LINK_SPEED_64G;
8705                                 break;
8706                         case 0xffff:
8707                                 phba->cfg_link_speed =
8708                                         LPFC_USER_LINK_SPEED_AUTO;
8709                                 break;
8710                         default:
8711                                 lpfc_printf_log(phba, KERN_ERR,
8712                                                 LOG_TRACE_EVENT,
8713                                                 "0047 Unrecognized link "
8714                                                 "speed : %d\n",
8715                                                 forced_link_speed);
8716                                 phba->cfg_link_speed =
8717                                         LPFC_USER_LINK_SPEED_AUTO;
8718                         }
8719                 }
8720         }
8721
8722         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
8723         length = phba->sli4_hba.max_cfg_param.max_xri -
8724                         lpfc_sli4_get_els_iocb_cnt(phba);
8725         if (phba->cfg_hba_queue_depth > length) {
8726                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8727                                 "3361 HBA queue depth changed from %d to %d\n",
8728                                 phba->cfg_hba_queue_depth, length);
8729                 phba->cfg_hba_queue_depth = length;
8730         }
8731
8732         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
8733             LPFC_SLI_INTF_IF_TYPE_2)
8734                 goto read_cfg_out;
8735
8736         /* get the pf# and vf# for SLI4 if_type 2 port */
8737         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
8738                   sizeof(struct lpfc_sli4_cfg_mhdr));
8739         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
8740                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
8741                          length, LPFC_SLI4_MBX_EMBED);
8742
8743         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8744         shdr = (union lpfc_sli4_cfg_shdr *)
8745                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
8746         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8747         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8748         if (rc2 || shdr_status || shdr_add_status) {
8749                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8750                                 "3026 Mailbox failed , mbxCmd x%x "
8751                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
8752                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
8753                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
8754                 goto read_cfg_out;
8755         }
8756
8757         /* search for fc_fcoe resrouce descriptor */
8758         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
8759
8760         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
8761         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
8762         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
8763         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
8764                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
8765         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
8766                 goto read_cfg_out;
8767
8768         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
8769                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
8770                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
8771                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
8772                         phba->sli4_hba.iov.pf_number =
8773                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
8774                         phba->sli4_hba.iov.vf_number =
8775                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
8776                         break;
8777                 }
8778         }
8779
8780         if (i < LPFC_RSRC_DESC_MAX_NUM)
8781                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8782                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
8783                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
8784                                 phba->sli4_hba.iov.vf_number);
8785         else
8786                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8787                                 "3028 GET_FUNCTION_CONFIG: failed to find "
8788                                 "Resource Descriptor:x%x\n",
8789                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
8790
8791 read_cfg_out:
8792         mempool_free(pmb, phba->mbox_mem_pool);
8793         return rc;
8794 }
8795
8796 /**
8797  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
8798  * @phba: pointer to lpfc hba data structure.
8799  *
8800  * This routine is invoked to setup the port-side endian order when
8801  * the port if_type is 0.  This routine has no function for other
8802  * if_types.
8803  *
8804  * Return codes
8805  *      0 - successful
8806  *      -ENOMEM - No available memory
8807  *      -EIO - The mailbox failed to complete successfully.
8808  **/
8809 static int
8810 lpfc_setup_endian_order(struct lpfc_hba *phba)
8811 {
8812         LPFC_MBOXQ_t *mboxq;
8813         uint32_t if_type, rc = 0;
8814         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
8815                                       HOST_ENDIAN_HIGH_WORD1};
8816
8817         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8818         switch (if_type) {
8819         case LPFC_SLI_INTF_IF_TYPE_0:
8820                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8821                                                        GFP_KERNEL);
8822                 if (!mboxq) {
8823                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8824                                         "0492 Unable to allocate memory for "
8825                                         "issuing SLI_CONFIG_SPECIAL mailbox "
8826                                         "command\n");
8827                         return -ENOMEM;
8828                 }
8829
8830                 /*
8831                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
8832                  * two words to contain special data values and no other data.
8833                  */
8834                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
8835                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
8836                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8837                 if (rc != MBX_SUCCESS) {
8838                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8839                                         "0493 SLI_CONFIG_SPECIAL mailbox "
8840                                         "failed with status x%x\n",
8841                                         rc);
8842                         rc = -EIO;
8843                 }
8844                 mempool_free(mboxq, phba->mbox_mem_pool);
8845                 break;
8846         case LPFC_SLI_INTF_IF_TYPE_6:
8847         case LPFC_SLI_INTF_IF_TYPE_2:
8848         case LPFC_SLI_INTF_IF_TYPE_1:
8849         default:
8850                 break;
8851         }
8852         return rc;
8853 }
8854
8855 /**
8856  * lpfc_sli4_queue_verify - Verify and update EQ counts
8857  * @phba: pointer to lpfc hba data structure.
8858  *
8859  * This routine is invoked to check the user settable queue counts for EQs.
8860  * After this routine is called the counts will be set to valid values that
8861  * adhere to the constraints of the system's interrupt vectors and the port's
8862  * queue resources.
8863  *
8864  * Return codes
8865  *      0 - successful
8866  *      -ENOMEM - No available memory
8867  **/
8868 static int
8869 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
8870 {
8871         /*
8872          * Sanity check for configured queue parameters against the run-time
8873          * device parameters
8874          */
8875
8876         if (phba->nvmet_support) {
8877                 if (phba->cfg_hdw_queue < phba->cfg_nvmet_mrq)
8878                         phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
8879                 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
8880                         phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
8881         }
8882
8883         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8884                         "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
8885                         phba->cfg_hdw_queue, phba->cfg_irq_chann,
8886                         phba->cfg_nvmet_mrq);
8887
8888         /* Get EQ depth from module parameter, fake the default for now */
8889         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8890         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8891
8892         /* Get CQ depth from module parameter, fake the default for now */
8893         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8894         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8895         return 0;
8896 }
8897
8898 static int
8899 lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx)
8900 {
8901         struct lpfc_queue *qdesc;
8902         u32 wqesize;
8903         int cpu;
8904
8905         cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ);
8906         /* Create Fast Path IO CQs */
8907         if (phba->enab_exp_wqcq_pages)
8908                 /* Increase the CQ size when WQEs contain an embedded cdb */
8909                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8910                                               phba->sli4_hba.cq_esize,
8911                                               LPFC_CQE_EXP_COUNT, cpu);
8912
8913         else
8914                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8915                                               phba->sli4_hba.cq_esize,
8916                                               phba->sli4_hba.cq_ecount, cpu);
8917         if (!qdesc) {
8918                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8919                                 "0499 Failed allocate fast-path IO CQ (%d)\n",
8920                                 idx);
8921                 return 1;
8922         }
8923         qdesc->qe_valid = 1;
8924         qdesc->hdwq = idx;
8925         qdesc->chann = cpu;
8926         phba->sli4_hba.hdwq[idx].io_cq = qdesc;
8927
8928         /* Create Fast Path IO WQs */
8929         if (phba->enab_exp_wqcq_pages) {
8930                 /* Increase the WQ size when WQEs contain an embedded cdb */
8931                 wqesize = (phba->fcp_embed_io) ?
8932                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8933                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8934                                               wqesize,
8935                                               LPFC_WQE_EXP_COUNT, cpu);
8936         } else
8937                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8938                                               phba->sli4_hba.wq_esize,
8939                                               phba->sli4_hba.wq_ecount, cpu);
8940
8941         if (!qdesc) {
8942                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8943                                 "0503 Failed allocate fast-path IO WQ (%d)\n",
8944                                 idx);
8945                 return 1;
8946         }
8947         qdesc->hdwq = idx;
8948         qdesc->chann = cpu;
8949         phba->sli4_hba.hdwq[idx].io_wq = qdesc;
8950         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8951         return 0;
8952 }
8953
8954 /**
8955  * lpfc_sli4_queue_create - Create all the SLI4 queues
8956  * @phba: pointer to lpfc hba data structure.
8957  *
8958  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8959  * operation. For each SLI4 queue type, the parameters such as queue entry
8960  * count (queue depth) shall be taken from the module parameter. For now,
8961  * we just use some constant number as place holder.
8962  *
8963  * Return codes
8964  *      0 - successful
8965  *      -ENOMEM - No availble memory
8966  *      -EIO - The mailbox failed to complete successfully.
8967  **/
8968 int
8969 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8970 {
8971         struct lpfc_queue *qdesc;
8972         int idx, cpu, eqcpu;
8973         struct lpfc_sli4_hdw_queue *qp;
8974         struct lpfc_vector_map_info *cpup;
8975         struct lpfc_vector_map_info *eqcpup;
8976         struct lpfc_eq_intr_info *eqi;
8977
8978         /*
8979          * Create HBA Record arrays.
8980          * Both NVME and FCP will share that same vectors / EQs
8981          */
8982         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8983         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8984         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8985         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8986         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8987         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8988         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8989         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8990         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8991         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8992
8993         if (!phba->sli4_hba.hdwq) {
8994                 phba->sli4_hba.hdwq = kcalloc(
8995                         phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
8996                         GFP_KERNEL);
8997                 if (!phba->sli4_hba.hdwq) {
8998                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8999                                         "6427 Failed allocate memory for "
9000                                         "fast-path Hardware Queue array\n");
9001                         goto out_error;
9002                 }
9003                 /* Prepare hardware queues to take IO buffers */
9004                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9005                         qp = &phba->sli4_hba.hdwq[idx];
9006                         spin_lock_init(&qp->io_buf_list_get_lock);
9007                         spin_lock_init(&qp->io_buf_list_put_lock);
9008                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
9009                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
9010                         qp->get_io_bufs = 0;
9011                         qp->put_io_bufs = 0;
9012                         qp->total_io_bufs = 0;
9013                         spin_lock_init(&qp->abts_io_buf_list_lock);
9014                         INIT_LIST_HEAD(&qp->lpfc_abts_io_buf_list);
9015                         qp->abts_scsi_io_bufs = 0;
9016                         qp->abts_nvme_io_bufs = 0;
9017                         INIT_LIST_HEAD(&qp->sgl_list);
9018                         INIT_LIST_HEAD(&qp->cmd_rsp_buf_list);
9019                         spin_lock_init(&qp->hdwq_lock);
9020                 }
9021         }
9022
9023         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9024                 if (phba->nvmet_support) {
9025                         phba->sli4_hba.nvmet_cqset = kcalloc(
9026                                         phba->cfg_nvmet_mrq,
9027                                         sizeof(struct lpfc_queue *),
9028                                         GFP_KERNEL);
9029                         if (!phba->sli4_hba.nvmet_cqset) {
9030                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9031                                         "3121 Fail allocate memory for "
9032                                         "fast-path CQ set array\n");
9033                                 goto out_error;
9034                         }
9035                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
9036                                         phba->cfg_nvmet_mrq,
9037                                         sizeof(struct lpfc_queue *),
9038                                         GFP_KERNEL);
9039                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
9040                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9041                                         "3122 Fail allocate memory for "
9042                                         "fast-path RQ set hdr array\n");
9043                                 goto out_error;
9044                         }
9045                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
9046                                         phba->cfg_nvmet_mrq,
9047                                         sizeof(struct lpfc_queue *),
9048                                         GFP_KERNEL);
9049                         if (!phba->sli4_hba.nvmet_mrq_data) {
9050                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9051                                         "3124 Fail allocate memory for "
9052                                         "fast-path RQ set data array\n");
9053                                 goto out_error;
9054                         }
9055                 }
9056         }
9057
9058         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
9059
9060         /* Create HBA Event Queues (EQs) */
9061         for_each_present_cpu(cpu) {
9062                 /* We only want to create 1 EQ per vector, even though
9063                  * multiple CPUs might be using that vector. so only
9064                  * selects the CPUs that are LPFC_CPU_FIRST_IRQ.
9065                  */
9066                 cpup = &phba->sli4_hba.cpu_map[cpu];
9067                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
9068                         continue;
9069
9070                 /* Get a ptr to the Hardware Queue associated with this CPU */
9071                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
9072
9073                 /* Allocate an EQ */
9074                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9075                                               phba->sli4_hba.eq_esize,
9076                                               phba->sli4_hba.eq_ecount, cpu);
9077                 if (!qdesc) {
9078                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9079                                         "0497 Failed allocate EQ (%d)\n",
9080                                         cpup->hdwq);
9081                         goto out_error;
9082                 }
9083                 qdesc->qe_valid = 1;
9084                 qdesc->hdwq = cpup->hdwq;
9085                 qdesc->chann = cpu; /* First CPU this EQ is affinitized to */
9086                 qdesc->last_cpu = qdesc->chann;
9087
9088                 /* Save the allocated EQ in the Hardware Queue */
9089                 qp->hba_eq = qdesc;
9090
9091                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
9092                 list_add(&qdesc->cpu_list, &eqi->list);
9093         }
9094
9095         /* Now we need to populate the other Hardware Queues, that share
9096          * an IRQ vector, with the associated EQ ptr.
9097          */
9098         for_each_present_cpu(cpu) {
9099                 cpup = &phba->sli4_hba.cpu_map[cpu];
9100
9101                 /* Check for EQ already allocated in previous loop */
9102                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
9103                         continue;
9104
9105                 /* Check for multiple CPUs per hdwq */
9106                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
9107                 if (qp->hba_eq)
9108                         continue;
9109
9110                 /* We need to share an EQ for this hdwq */
9111                 eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
9112                 eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
9113                 qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
9114         }
9115
9116         /* Allocate IO Path SLI4 CQ/WQs */
9117         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9118                 if (lpfc_alloc_io_wq_cq(phba, idx))
9119                         goto out_error;
9120         }
9121
9122         if (phba->nvmet_support) {
9123                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
9124                         cpu = lpfc_find_cpu_handle(phba, idx,
9125                                                    LPFC_FIND_BY_HDWQ);
9126                         qdesc = lpfc_sli4_queue_alloc(phba,
9127                                                       LPFC_DEFAULT_PAGE_SIZE,
9128                                                       phba->sli4_hba.cq_esize,
9129                                                       phba->sli4_hba.cq_ecount,
9130                                                       cpu);
9131                         if (!qdesc) {
9132                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9133                                                 "3142 Failed allocate NVME "
9134                                                 "CQ Set (%d)\n", idx);
9135                                 goto out_error;
9136                         }
9137                         qdesc->qe_valid = 1;
9138                         qdesc->hdwq = idx;
9139                         qdesc->chann = cpu;
9140                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
9141                 }
9142         }
9143
9144         /*
9145          * Create Slow Path Completion Queues (CQs)
9146          */
9147
9148         cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
9149         /* Create slow-path Mailbox Command Complete Queue */
9150         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9151                                       phba->sli4_hba.cq_esize,
9152                                       phba->sli4_hba.cq_ecount, cpu);
9153         if (!qdesc) {
9154                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9155                                 "0500 Failed allocate slow-path mailbox CQ\n");
9156                 goto out_error;
9157         }
9158         qdesc->qe_valid = 1;
9159         phba->sli4_hba.mbx_cq = qdesc;
9160
9161         /* Create slow-path ELS Complete Queue */
9162         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9163                                       phba->sli4_hba.cq_esize,
9164                                       phba->sli4_hba.cq_ecount, cpu);
9165         if (!qdesc) {
9166                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9167                                 "0501 Failed allocate slow-path ELS CQ\n");
9168                 goto out_error;
9169         }
9170         qdesc->qe_valid = 1;
9171         qdesc->chann = cpu;
9172         phba->sli4_hba.els_cq = qdesc;
9173
9174
9175         /*
9176          * Create Slow Path Work Queues (WQs)
9177          */
9178
9179         /* Create Mailbox Command Queue */
9180
9181         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9182                                       phba->sli4_hba.mq_esize,
9183                                       phba->sli4_hba.mq_ecount, cpu);
9184         if (!qdesc) {
9185                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9186                                 "0505 Failed allocate slow-path MQ\n");
9187                 goto out_error;
9188         }
9189         qdesc->chann = cpu;
9190         phba->sli4_hba.mbx_wq = qdesc;
9191
9192         /*
9193          * Create ELS Work Queues
9194          */
9195
9196         /* Create slow-path ELS Work Queue */
9197         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9198                                       phba->sli4_hba.wq_esize,
9199                                       phba->sli4_hba.wq_ecount, cpu);
9200         if (!qdesc) {
9201                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9202                                 "0504 Failed allocate slow-path ELS WQ\n");
9203                 goto out_error;
9204         }
9205         qdesc->chann = cpu;
9206         phba->sli4_hba.els_wq = qdesc;
9207         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
9208
9209         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9210                 /* Create NVME LS Complete Queue */
9211                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9212                                               phba->sli4_hba.cq_esize,
9213                                               phba->sli4_hba.cq_ecount, cpu);
9214                 if (!qdesc) {
9215                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9216                                         "6079 Failed allocate NVME LS CQ\n");
9217                         goto out_error;
9218                 }
9219                 qdesc->chann = cpu;
9220                 qdesc->qe_valid = 1;
9221                 phba->sli4_hba.nvmels_cq = qdesc;
9222
9223                 /* Create NVME LS Work Queue */
9224                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9225                                               phba->sli4_hba.wq_esize,
9226                                               phba->sli4_hba.wq_ecount, cpu);
9227                 if (!qdesc) {
9228                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9229                                         "6080 Failed allocate NVME LS WQ\n");
9230                         goto out_error;
9231                 }
9232                 qdesc->chann = cpu;
9233                 phba->sli4_hba.nvmels_wq = qdesc;
9234                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
9235         }
9236
9237         /*
9238          * Create Receive Queue (RQ)
9239          */
9240
9241         /* Create Receive Queue for header */
9242         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9243                                       phba->sli4_hba.rq_esize,
9244                                       phba->sli4_hba.rq_ecount, cpu);
9245         if (!qdesc) {
9246                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9247                                 "0506 Failed allocate receive HRQ\n");
9248                 goto out_error;
9249         }
9250         phba->sli4_hba.hdr_rq = qdesc;
9251
9252         /* Create Receive Queue for data */
9253         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9254                                       phba->sli4_hba.rq_esize,
9255                                       phba->sli4_hba.rq_ecount, cpu);
9256         if (!qdesc) {
9257                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9258                                 "0507 Failed allocate receive DRQ\n");
9259                 goto out_error;
9260         }
9261         phba->sli4_hba.dat_rq = qdesc;
9262
9263         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
9264             phba->nvmet_support) {
9265                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
9266                         cpu = lpfc_find_cpu_handle(phba, idx,
9267                                                    LPFC_FIND_BY_HDWQ);
9268                         /* Create NVMET Receive Queue for header */
9269                         qdesc = lpfc_sli4_queue_alloc(phba,
9270                                                       LPFC_DEFAULT_PAGE_SIZE,
9271                                                       phba->sli4_hba.rq_esize,
9272                                                       LPFC_NVMET_RQE_DEF_COUNT,
9273                                                       cpu);
9274                         if (!qdesc) {
9275                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9276                                                 "3146 Failed allocate "
9277                                                 "receive HRQ\n");
9278                                 goto out_error;
9279                         }
9280                         qdesc->hdwq = idx;
9281                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
9282
9283                         /* Only needed for header of RQ pair */
9284                         qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp),
9285                                                    GFP_KERNEL,
9286                                                    cpu_to_node(cpu));
9287                         if (qdesc->rqbp == NULL) {
9288                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9289                                                 "6131 Failed allocate "
9290                                                 "Header RQBP\n");
9291                                 goto out_error;
9292                         }
9293
9294                         /* Put list in known state in case driver load fails. */
9295                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
9296
9297                         /* Create NVMET Receive Queue for data */
9298                         qdesc = lpfc_sli4_queue_alloc(phba,
9299                                                       LPFC_DEFAULT_PAGE_SIZE,
9300                                                       phba->sli4_hba.rq_esize,
9301                                                       LPFC_NVMET_RQE_DEF_COUNT,
9302                                                       cpu);
9303                         if (!qdesc) {
9304                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9305                                                 "3156 Failed allocate "
9306                                                 "receive DRQ\n");
9307                                 goto out_error;
9308                         }
9309                         qdesc->hdwq = idx;
9310                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
9311                 }
9312         }
9313
9314         /* Clear NVME stats */
9315         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9316                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9317                         memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
9318                                sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
9319                 }
9320         }
9321
9322         /* Clear SCSI stats */
9323         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
9324                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9325                         memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
9326                                sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
9327                 }
9328         }
9329
9330         return 0;
9331
9332 out_error:
9333         lpfc_sli4_queue_destroy(phba);
9334         return -ENOMEM;
9335 }
9336
9337 static inline void
9338 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
9339 {
9340         if (*qp != NULL) {
9341                 lpfc_sli4_queue_free(*qp);
9342                 *qp = NULL;
9343         }
9344 }
9345
9346 static inline void
9347 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
9348 {
9349         int idx;
9350
9351         if (*qs == NULL)
9352                 return;
9353
9354         for (idx = 0; idx < max; idx++)
9355                 __lpfc_sli4_release_queue(&(*qs)[idx]);
9356
9357         kfree(*qs);
9358         *qs = NULL;
9359 }
9360
9361 static inline void
9362 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
9363 {
9364         struct lpfc_sli4_hdw_queue *hdwq;
9365         struct lpfc_queue *eq;
9366         uint32_t idx;
9367
9368         hdwq = phba->sli4_hba.hdwq;
9369
9370         /* Loop thru all Hardware Queues */
9371         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9372                 /* Free the CQ/WQ corresponding to the Hardware Queue */
9373                 lpfc_sli4_queue_free(hdwq[idx].io_cq);
9374                 lpfc_sli4_queue_free(hdwq[idx].io_wq);
9375                 hdwq[idx].hba_eq = NULL;
9376                 hdwq[idx].io_cq = NULL;
9377                 hdwq[idx].io_wq = NULL;
9378                 if (phba->cfg_xpsgl && !phba->nvmet_support)
9379                         lpfc_free_sgl_per_hdwq(phba, &hdwq[idx]);
9380                 lpfc_free_cmd_rsp_buf_per_hdwq(phba, &hdwq[idx]);
9381         }
9382         /* Loop thru all IRQ vectors */
9383         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
9384                 /* Free the EQ corresponding to the IRQ vector */
9385                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
9386                 lpfc_sli4_queue_free(eq);
9387                 phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
9388         }
9389 }
9390
9391 /**
9392  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
9393  * @phba: pointer to lpfc hba data structure.
9394  *
9395  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
9396  * operation.
9397  *
9398  * Return codes
9399  *      0 - successful
9400  *      -ENOMEM - No available memory
9401  *      -EIO - The mailbox failed to complete successfully.
9402  **/
9403 void
9404 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
9405 {
9406         /*
9407          * Set FREE_INIT before beginning to free the queues.
9408          * Wait until the users of queues to acknowledge to
9409          * release queues by clearing FREE_WAIT.
9410          */
9411         spin_lock_irq(&phba->hbalock);
9412         phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
9413         while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
9414                 spin_unlock_irq(&phba->hbalock);
9415                 msleep(20);
9416                 spin_lock_irq(&phba->hbalock);
9417         }
9418         spin_unlock_irq(&phba->hbalock);
9419
9420         lpfc_sli4_cleanup_poll_list(phba);
9421
9422         /* Release HBA eqs */
9423         if (phba->sli4_hba.hdwq)
9424                 lpfc_sli4_release_hdwq(phba);
9425
9426         if (phba->nvmet_support) {
9427                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
9428                                          phba->cfg_nvmet_mrq);
9429
9430                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
9431                                          phba->cfg_nvmet_mrq);
9432                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
9433                                          phba->cfg_nvmet_mrq);
9434         }
9435
9436         /* Release mailbox command work queue */
9437         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
9438
9439         /* Release ELS work queue */
9440         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
9441
9442         /* Release ELS work queue */
9443         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
9444
9445         /* Release unsolicited receive queue */
9446         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
9447         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
9448
9449         /* Release ELS complete queue */
9450         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
9451
9452         /* Release NVME LS complete queue */
9453         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
9454
9455         /* Release mailbox command complete queue */
9456         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
9457
9458         /* Everything on this list has been freed */
9459         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
9460
9461         /* Done with freeing the queues */
9462         spin_lock_irq(&phba->hbalock);
9463         phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
9464         spin_unlock_irq(&phba->hbalock);
9465 }
9466
9467 int
9468 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
9469 {
9470         struct lpfc_rqb *rqbp;
9471         struct lpfc_dmabuf *h_buf;
9472         struct rqb_dmabuf *rqb_buffer;
9473
9474         rqbp = rq->rqbp;
9475         while (!list_empty(&rqbp->rqb_buffer_list)) {
9476                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
9477                                  struct lpfc_dmabuf, list);
9478
9479                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
9480                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
9481                 rqbp->buffer_count--;
9482         }
9483         return 1;
9484 }
9485
9486 static int
9487 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
9488         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
9489         int qidx, uint32_t qtype)
9490 {
9491         struct lpfc_sli_ring *pring;
9492         int rc;
9493
9494         if (!eq || !cq || !wq) {
9495                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9496                         "6085 Fast-path %s (%d) not allocated\n",
9497                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
9498                 return -ENOMEM;
9499         }
9500
9501         /* create the Cq first */
9502         rc = lpfc_cq_create(phba, cq, eq,
9503                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
9504         if (rc) {
9505                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9506                                 "6086 Failed setup of CQ (%d), rc = 0x%x\n",
9507                                 qidx, (uint32_t)rc);
9508                 return rc;
9509         }
9510
9511         if (qtype != LPFC_MBOX) {
9512                 /* Setup cq_map for fast lookup */
9513                 if (cq_map)
9514                         *cq_map = cq->queue_id;
9515
9516                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9517                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
9518                         qidx, cq->queue_id, qidx, eq->queue_id);
9519
9520                 /* create the wq */
9521                 rc = lpfc_wq_create(phba, wq, cq, qtype);
9522                 if (rc) {
9523                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9524                                 "4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
9525                                 qidx, (uint32_t)rc);
9526                         /* no need to tear down cq - caller will do so */
9527                         return rc;
9528                 }
9529
9530                 /* Bind this CQ/WQ to the NVME ring */
9531                 pring = wq->pring;
9532                 pring->sli.sli4.wqp = (void *)wq;
9533                 cq->pring = pring;
9534
9535                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9536                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
9537                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
9538         } else {
9539                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
9540                 if (rc) {
9541                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9542                                         "0539 Failed setup of slow-path MQ: "
9543                                         "rc = 0x%x\n", rc);
9544                         /* no need to tear down cq - caller will do so */
9545                         return rc;
9546                 }
9547
9548                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9549                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
9550                         phba->sli4_hba.mbx_wq->queue_id,
9551                         phba->sli4_hba.mbx_cq->queue_id);
9552         }
9553
9554         return 0;
9555 }
9556
9557 /**
9558  * lpfc_setup_cq_lookup - Setup the CQ lookup table
9559  * @phba: pointer to lpfc hba data structure.
9560  *
9561  * This routine will populate the cq_lookup table by all
9562  * available CQ queue_id's.
9563  **/
9564 static void
9565 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
9566 {
9567         struct lpfc_queue *eq, *childq;
9568         int qidx;
9569
9570         memset(phba->sli4_hba.cq_lookup, 0,
9571                (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
9572         /* Loop thru all IRQ vectors */
9573         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9574                 /* Get the EQ corresponding to the IRQ vector */
9575                 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
9576                 if (!eq)
9577                         continue;
9578                 /* Loop through all CQs associated with that EQ */
9579                 list_for_each_entry(childq, &eq->child_list, list) {
9580                         if (childq->queue_id > phba->sli4_hba.cq_max)
9581                                 continue;
9582                         if (childq->subtype == LPFC_IO)
9583                                 phba->sli4_hba.cq_lookup[childq->queue_id] =
9584                                         childq;
9585                 }
9586         }
9587 }
9588
9589 /**
9590  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
9591  * @phba: pointer to lpfc hba data structure.
9592  *
9593  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
9594  * operation.
9595  *
9596  * Return codes
9597  *      0 - successful
9598  *      -ENOMEM - No available memory
9599  *      -EIO - The mailbox failed to complete successfully.
9600  **/
9601 int
9602 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
9603 {
9604         uint32_t shdr_status, shdr_add_status;
9605         union lpfc_sli4_cfg_shdr *shdr;
9606         struct lpfc_vector_map_info *cpup;
9607         struct lpfc_sli4_hdw_queue *qp;
9608         LPFC_MBOXQ_t *mboxq;
9609         int qidx, cpu;
9610         uint32_t length, usdelay;
9611         int rc = -ENOMEM;
9612
9613         /* Check for dual-ULP support */
9614         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9615         if (!mboxq) {
9616                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9617                                 "3249 Unable to allocate memory for "
9618                                 "QUERY_FW_CFG mailbox command\n");
9619                 return -ENOMEM;
9620         }
9621         length = (sizeof(struct lpfc_mbx_query_fw_config) -
9622                   sizeof(struct lpfc_sli4_cfg_mhdr));
9623         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9624                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
9625                          length, LPFC_SLI4_MBX_EMBED);
9626
9627         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9628
9629         shdr = (union lpfc_sli4_cfg_shdr *)
9630                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9631         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9632         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9633         if (shdr_status || shdr_add_status || rc) {
9634                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9635                                 "3250 QUERY_FW_CFG mailbox failed with status "
9636                                 "x%x add_status x%x, mbx status x%x\n",
9637                                 shdr_status, shdr_add_status, rc);
9638                 if (rc != MBX_TIMEOUT)
9639                         mempool_free(mboxq, phba->mbox_mem_pool);
9640                 rc = -ENXIO;
9641                 goto out_error;
9642         }
9643
9644         phba->sli4_hba.fw_func_mode =
9645                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
9646         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
9647         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
9648         phba->sli4_hba.physical_port =
9649                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
9650         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9651                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
9652                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
9653                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
9654
9655         if (rc != MBX_TIMEOUT)
9656                 mempool_free(mboxq, phba->mbox_mem_pool);
9657
9658         /*
9659          * Set up HBA Event Queues (EQs)
9660          */
9661         qp = phba->sli4_hba.hdwq;
9662
9663         /* Set up HBA event queue */
9664         if (!qp) {
9665                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9666                                 "3147 Fast-path EQs not allocated\n");
9667                 rc = -ENOMEM;
9668                 goto out_error;
9669         }
9670
9671         /* Loop thru all IRQ vectors */
9672         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9673                 /* Create HBA Event Queues (EQs) in order */
9674                 for_each_present_cpu(cpu) {
9675                         cpup = &phba->sli4_hba.cpu_map[cpu];
9676
9677                         /* Look for the CPU thats using that vector with
9678                          * LPFC_CPU_FIRST_IRQ set.
9679                          */
9680                         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
9681                                 continue;
9682                         if (qidx != cpup->eq)
9683                                 continue;
9684
9685                         /* Create an EQ for that vector */
9686                         rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
9687                                             phba->cfg_fcp_imax);
9688                         if (rc) {
9689                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9690                                                 "0523 Failed setup of fast-path"
9691                                                 " EQ (%d), rc = 0x%x\n",
9692                                                 cpup->eq, (uint32_t)rc);
9693                                 goto out_destroy;
9694                         }
9695
9696                         /* Save the EQ for that vector in the hba_eq_hdl */
9697                         phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
9698                                 qp[cpup->hdwq].hba_eq;
9699
9700                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9701                                         "2584 HBA EQ setup: queue[%d]-id=%d\n",
9702                                         cpup->eq,
9703                                         qp[cpup->hdwq].hba_eq->queue_id);
9704                 }
9705         }
9706
9707         /* Loop thru all Hardware Queues */
9708         for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9709                 cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
9710                 cpup = &phba->sli4_hba.cpu_map[cpu];
9711
9712                 /* Create the CQ/WQ corresponding to the Hardware Queue */
9713                 rc = lpfc_create_wq_cq(phba,
9714                                        phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
9715                                        qp[qidx].io_cq,
9716                                        qp[qidx].io_wq,
9717                                        &phba->sli4_hba.hdwq[qidx].io_cq_map,
9718                                        qidx,
9719                                        LPFC_IO);
9720                 if (rc) {
9721                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9722                                         "0535 Failed to setup fastpath "
9723                                         "IO WQ/CQ (%d), rc = 0x%x\n",
9724                                         qidx, (uint32_t)rc);
9725                         goto out_destroy;
9726                 }
9727         }
9728
9729         /*
9730          * Set up Slow Path Complete Queues (CQs)
9731          */
9732
9733         /* Set up slow-path MBOX CQ/MQ */
9734
9735         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
9736                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9737                                 "0528 %s not allocated\n",
9738                                 phba->sli4_hba.mbx_cq ?
9739                                 "Mailbox WQ" : "Mailbox CQ");
9740                 rc = -ENOMEM;
9741                 goto out_destroy;
9742         }
9743
9744         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9745                                phba->sli4_hba.mbx_cq,
9746                                phba->sli4_hba.mbx_wq,
9747                                NULL, 0, LPFC_MBOX);
9748         if (rc) {
9749                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9750                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
9751                         (uint32_t)rc);
9752                 goto out_destroy;
9753         }
9754         if (phba->nvmet_support) {
9755                 if (!phba->sli4_hba.nvmet_cqset) {
9756                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9757                                         "3165 Fast-path NVME CQ Set "
9758                                         "array not allocated\n");
9759                         rc = -ENOMEM;
9760                         goto out_destroy;
9761                 }
9762                 if (phba->cfg_nvmet_mrq > 1) {
9763                         rc = lpfc_cq_create_set(phba,
9764                                         phba->sli4_hba.nvmet_cqset,
9765                                         qp,
9766                                         LPFC_WCQ, LPFC_NVMET);
9767                         if (rc) {
9768                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9769                                                 "3164 Failed setup of NVME CQ "
9770                                                 "Set, rc = 0x%x\n",
9771                                                 (uint32_t)rc);
9772                                 goto out_destroy;
9773                         }
9774                 } else {
9775                         /* Set up NVMET Receive Complete Queue */
9776                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
9777                                             qp[0].hba_eq,
9778                                             LPFC_WCQ, LPFC_NVMET);
9779                         if (rc) {
9780                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9781                                                 "6089 Failed setup NVMET CQ: "
9782                                                 "rc = 0x%x\n", (uint32_t)rc);
9783                                 goto out_destroy;
9784                         }
9785                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
9786
9787                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9788                                         "6090 NVMET CQ setup: cq-id=%d, "
9789                                         "parent eq-id=%d\n",
9790                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
9791                                         qp[0].hba_eq->queue_id);
9792                 }
9793         }
9794
9795         /* Set up slow-path ELS WQ/CQ */
9796         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
9797                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9798                                 "0530 ELS %s not allocated\n",
9799                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
9800                 rc = -ENOMEM;
9801                 goto out_destroy;
9802         }
9803         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9804                                phba->sli4_hba.els_cq,
9805                                phba->sli4_hba.els_wq,
9806                                NULL, 0, LPFC_ELS);
9807         if (rc) {
9808                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9809                                 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
9810                                 (uint32_t)rc);
9811                 goto out_destroy;
9812         }
9813         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9814                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
9815                         phba->sli4_hba.els_wq->queue_id,
9816                         phba->sli4_hba.els_cq->queue_id);
9817
9818         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9819                 /* Set up NVME LS Complete Queue */
9820                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
9821                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9822                                         "6091 LS %s not allocated\n",
9823                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
9824                         rc = -ENOMEM;
9825                         goto out_destroy;
9826                 }
9827                 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9828                                        phba->sli4_hba.nvmels_cq,
9829                                        phba->sli4_hba.nvmels_wq,
9830                                        NULL, 0, LPFC_NVME_LS);
9831                 if (rc) {
9832                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9833                                         "0526 Failed setup of NVVME LS WQ/CQ: "
9834                                         "rc = 0x%x\n", (uint32_t)rc);
9835                         goto out_destroy;
9836                 }
9837
9838                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9839                                 "6096 ELS WQ setup: wq-id=%d, "
9840                                 "parent cq-id=%d\n",
9841                                 phba->sli4_hba.nvmels_wq->queue_id,
9842                                 phba->sli4_hba.nvmels_cq->queue_id);
9843         }
9844
9845         /*
9846          * Create NVMET Receive Queue (RQ)
9847          */
9848         if (phba->nvmet_support) {
9849                 if ((!phba->sli4_hba.nvmet_cqset) ||
9850                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
9851                     (!phba->sli4_hba.nvmet_mrq_data)) {
9852                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9853                                         "6130 MRQ CQ Queues not "
9854                                         "allocated\n");
9855                         rc = -ENOMEM;
9856                         goto out_destroy;
9857                 }
9858                 if (phba->cfg_nvmet_mrq > 1) {
9859                         rc = lpfc_mrq_create(phba,
9860                                              phba->sli4_hba.nvmet_mrq_hdr,
9861                                              phba->sli4_hba.nvmet_mrq_data,
9862                                              phba->sli4_hba.nvmet_cqset,
9863                                              LPFC_NVMET);
9864                         if (rc) {
9865                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9866                                                 "6098 Failed setup of NVMET "
9867                                                 "MRQ: rc = 0x%x\n",
9868                                                 (uint32_t)rc);
9869                                 goto out_destroy;
9870                         }
9871
9872                 } else {
9873                         rc = lpfc_rq_create(phba,
9874                                             phba->sli4_hba.nvmet_mrq_hdr[0],
9875                                             phba->sli4_hba.nvmet_mrq_data[0],
9876                                             phba->sli4_hba.nvmet_cqset[0],
9877                                             LPFC_NVMET);
9878                         if (rc) {
9879                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9880                                                 "6057 Failed setup of NVMET "
9881                                                 "Receive Queue: rc = 0x%x\n",
9882                                                 (uint32_t)rc);
9883                                 goto out_destroy;
9884                         }
9885
9886                         lpfc_printf_log(
9887                                 phba, KERN_INFO, LOG_INIT,
9888                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
9889                                 "dat-rq-id=%d parent cq-id=%d\n",
9890                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
9891                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
9892                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
9893
9894                 }
9895         }
9896
9897         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
9898                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9899                                 "0540 Receive Queue not allocated\n");
9900                 rc = -ENOMEM;
9901                 goto out_destroy;
9902         }
9903
9904         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
9905                             phba->sli4_hba.els_cq, LPFC_USOL);
9906         if (rc) {
9907                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9908                                 "0541 Failed setup of Receive Queue: "
9909                                 "rc = 0x%x\n", (uint32_t)rc);
9910                 goto out_destroy;
9911         }
9912
9913         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9914                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
9915                         "parent cq-id=%d\n",
9916                         phba->sli4_hba.hdr_rq->queue_id,
9917                         phba->sli4_hba.dat_rq->queue_id,
9918                         phba->sli4_hba.els_cq->queue_id);
9919
9920         if (phba->cfg_fcp_imax)
9921                 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
9922         else
9923                 usdelay = 0;
9924
9925         for (qidx = 0; qidx < phba->cfg_irq_chann;
9926              qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
9927                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
9928                                          usdelay);
9929
9930         if (phba->sli4_hba.cq_max) {
9931                 kfree(phba->sli4_hba.cq_lookup);
9932                 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
9933                         sizeof(struct lpfc_queue *), GFP_KERNEL);
9934                 if (!phba->sli4_hba.cq_lookup) {
9935                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9936                                         "0549 Failed setup of CQ Lookup table: "
9937                                         "size 0x%x\n", phba->sli4_hba.cq_max);
9938                         rc = -ENOMEM;
9939                         goto out_destroy;
9940                 }
9941                 lpfc_setup_cq_lookup(phba);
9942         }
9943         return 0;
9944
9945 out_destroy:
9946         lpfc_sli4_queue_unset(phba);
9947 out_error:
9948         return rc;
9949 }
9950
9951 /**
9952  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
9953  * @phba: pointer to lpfc hba data structure.
9954  *
9955  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
9956  * operation.
9957  *
9958  * Return codes
9959  *      0 - successful
9960  *      -ENOMEM - No available memory
9961  *      -EIO - The mailbox failed to complete successfully.
9962  **/
9963 void
9964 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
9965 {
9966         struct lpfc_sli4_hdw_queue *qp;
9967         struct lpfc_queue *eq;
9968         int qidx;
9969
9970         /* Unset mailbox command work queue */
9971         if (phba->sli4_hba.mbx_wq)
9972                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
9973
9974         /* Unset NVME LS work queue */
9975         if (phba->sli4_hba.nvmels_wq)
9976                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
9977
9978         /* Unset ELS work queue */
9979         if (phba->sli4_hba.els_wq)
9980                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
9981
9982         /* Unset unsolicited receive queue */
9983         if (phba->sli4_hba.hdr_rq)
9984                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
9985                                 phba->sli4_hba.dat_rq);
9986
9987         /* Unset mailbox command complete queue */
9988         if (phba->sli4_hba.mbx_cq)
9989                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
9990
9991         /* Unset ELS complete queue */
9992         if (phba->sli4_hba.els_cq)
9993                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
9994
9995         /* Unset NVME LS complete queue */
9996         if (phba->sli4_hba.nvmels_cq)
9997                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
9998
9999         if (phba->nvmet_support) {
10000                 /* Unset NVMET MRQ queue */
10001                 if (phba->sli4_hba.nvmet_mrq_hdr) {
10002                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
10003                                 lpfc_rq_destroy(
10004                                         phba,
10005                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
10006                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
10007                 }
10008
10009                 /* Unset NVMET CQ Set complete queue */
10010                 if (phba->sli4_hba.nvmet_cqset) {
10011                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
10012                                 lpfc_cq_destroy(
10013                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
10014                 }
10015         }
10016
10017         /* Unset fast-path SLI4 queues */
10018         if (phba->sli4_hba.hdwq) {
10019                 /* Loop thru all Hardware Queues */
10020                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
10021                         /* Destroy the CQ/WQ corresponding to Hardware Queue */
10022                         qp = &phba->sli4_hba.hdwq[qidx];
10023                         lpfc_wq_destroy(phba, qp->io_wq);
10024                         lpfc_cq_destroy(phba, qp->io_cq);
10025                 }
10026                 /* Loop thru all IRQ vectors */
10027                 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
10028                         /* Destroy the EQ corresponding to the IRQ vector */
10029                         eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
10030                         lpfc_eq_destroy(phba, eq);
10031                 }
10032         }
10033
10034         kfree(phba->sli4_hba.cq_lookup);
10035         phba->sli4_hba.cq_lookup = NULL;
10036         phba->sli4_hba.cq_max = 0;
10037 }
10038
10039 /**
10040  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
10041  * @phba: pointer to lpfc hba data structure.
10042  *
10043  * This routine is invoked to allocate and set up a pool of completion queue
10044  * events. The body of the completion queue event is a completion queue entry
10045  * CQE. For now, this pool is used for the interrupt service routine to queue
10046  * the following HBA completion queue events for the worker thread to process:
10047  *   - Mailbox asynchronous events
10048  *   - Receive queue completion unsolicited events
10049  * Later, this can be used for all the slow-path events.
10050  *
10051  * Return codes
10052  *      0 - successful
10053  *      -ENOMEM - No available memory
10054  **/
10055 static int
10056 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
10057 {
10058         struct lpfc_cq_event *cq_event;
10059         int i;
10060
10061         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
10062                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
10063                 if (!cq_event)
10064                         goto out_pool_create_fail;
10065                 list_add_tail(&cq_event->list,
10066                               &phba->sli4_hba.sp_cqe_event_pool);
10067         }
10068         return 0;
10069
10070 out_pool_create_fail:
10071         lpfc_sli4_cq_event_pool_destroy(phba);
10072         return -ENOMEM;
10073 }
10074
10075 /**
10076  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
10077  * @phba: pointer to lpfc hba data structure.
10078  *
10079  * This routine is invoked to free the pool of completion queue events at
10080  * driver unload time. Note that, it is the responsibility of the driver
10081  * cleanup routine to free all the outstanding completion-queue events
10082  * allocated from this pool back into the pool before invoking this routine
10083  * to destroy the pool.
10084  **/
10085 static void
10086 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
10087 {
10088         struct lpfc_cq_event *cq_event, *next_cq_event;
10089
10090         list_for_each_entry_safe(cq_event, next_cq_event,
10091                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
10092                 list_del(&cq_event->list);
10093                 kfree(cq_event);
10094         }
10095 }
10096
10097 /**
10098  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
10099  * @phba: pointer to lpfc hba data structure.
10100  *
10101  * This routine is the lock free version of the API invoked to allocate a
10102  * completion-queue event from the free pool.
10103  *
10104  * Return: Pointer to the newly allocated completion-queue event if successful
10105  *         NULL otherwise.
10106  **/
10107 struct lpfc_cq_event *
10108 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
10109 {
10110         struct lpfc_cq_event *cq_event = NULL;
10111
10112         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
10113                          struct lpfc_cq_event, list);
10114         return cq_event;
10115 }
10116
10117 /**
10118  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
10119  * @phba: pointer to lpfc hba data structure.
10120  *
10121  * This routine is the lock version of the API invoked to allocate a
10122  * completion-queue event from the free pool.
10123  *
10124  * Return: Pointer to the newly allocated completion-queue event if successful
10125  *         NULL otherwise.
10126  **/
10127 struct lpfc_cq_event *
10128 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
10129 {
10130         struct lpfc_cq_event *cq_event;
10131         unsigned long iflags;
10132
10133         spin_lock_irqsave(&phba->hbalock, iflags);
10134         cq_event = __lpfc_sli4_cq_event_alloc(phba);
10135         spin_unlock_irqrestore(&phba->hbalock, iflags);
10136         return cq_event;
10137 }
10138
10139 /**
10140  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
10141  * @phba: pointer to lpfc hba data structure.
10142  * @cq_event: pointer to the completion queue event to be freed.
10143  *
10144  * This routine is the lock free version of the API invoked to release a
10145  * completion-queue event back into the free pool.
10146  **/
10147 void
10148 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
10149                              struct lpfc_cq_event *cq_event)
10150 {
10151         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
10152 }
10153
10154 /**
10155  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
10156  * @phba: pointer to lpfc hba data structure.
10157  * @cq_event: pointer to the completion queue event to be freed.
10158  *
10159  * This routine is the lock version of the API invoked to release a
10160  * completion-queue event back into the free pool.
10161  **/
10162 void
10163 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
10164                            struct lpfc_cq_event *cq_event)
10165 {
10166         unsigned long iflags;
10167         spin_lock_irqsave(&phba->hbalock, iflags);
10168         __lpfc_sli4_cq_event_release(phba, cq_event);
10169         spin_unlock_irqrestore(&phba->hbalock, iflags);
10170 }
10171
10172 /**
10173  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
10174  * @phba: pointer to lpfc hba data structure.
10175  *
10176  * This routine is to free all the pending completion-queue events to the
10177  * back into the free pool for device reset.
10178  **/
10179 static void
10180 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
10181 {
10182         LIST_HEAD(cq_event_list);
10183         struct lpfc_cq_event *cq_event;
10184         unsigned long iflags;
10185
10186         /* Retrieve all the pending WCQEs from pending WCQE lists */
10187
10188         /* Pending ELS XRI abort events */
10189         spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
10190         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
10191                          &cq_event_list);
10192         spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
10193
10194         /* Pending asynnc events */
10195         spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
10196         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
10197                          &cq_event_list);
10198         spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
10199
10200         while (!list_empty(&cq_event_list)) {
10201                 list_remove_head(&cq_event_list, cq_event,
10202                                  struct lpfc_cq_event, list);
10203                 lpfc_sli4_cq_event_release(phba, cq_event);
10204         }
10205 }
10206
10207 /**
10208  * lpfc_pci_function_reset - Reset pci function.
10209  * @phba: pointer to lpfc hba data structure.
10210  *
10211  * This routine is invoked to request a PCI function reset. It will destroys
10212  * all resources assigned to the PCI function which originates this request.
10213  *
10214  * Return codes
10215  *      0 - successful
10216  *      -ENOMEM - No available memory
10217  *      -EIO - The mailbox failed to complete successfully.
10218  **/
10219 int
10220 lpfc_pci_function_reset(struct lpfc_hba *phba)
10221 {
10222         LPFC_MBOXQ_t *mboxq;
10223         uint32_t rc = 0, if_type;
10224         uint32_t shdr_status, shdr_add_status;
10225         uint32_t rdy_chk;
10226         uint32_t port_reset = 0;
10227         union lpfc_sli4_cfg_shdr *shdr;
10228         struct lpfc_register reg_data;
10229         uint16_t devid;
10230
10231         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10232         switch (if_type) {
10233         case LPFC_SLI_INTF_IF_TYPE_0:
10234                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
10235                                                        GFP_KERNEL);
10236                 if (!mboxq) {
10237                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10238                                         "0494 Unable to allocate memory for "
10239                                         "issuing SLI_FUNCTION_RESET mailbox "
10240                                         "command\n");
10241                         return -ENOMEM;
10242                 }
10243
10244                 /* Setup PCI function reset mailbox-ioctl command */
10245                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10246                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
10247                                  LPFC_SLI4_MBX_EMBED);
10248                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10249                 shdr = (union lpfc_sli4_cfg_shdr *)
10250                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
10251                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10252                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
10253                                          &shdr->response);
10254                 if (rc != MBX_TIMEOUT)
10255                         mempool_free(mboxq, phba->mbox_mem_pool);
10256                 if (shdr_status || shdr_add_status || rc) {
10257                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10258                                         "0495 SLI_FUNCTION_RESET mailbox "
10259                                         "failed with status x%x add_status x%x,"
10260                                         " mbx status x%x\n",
10261                                         shdr_status, shdr_add_status, rc);
10262                         rc = -ENXIO;
10263                 }
10264                 break;
10265         case LPFC_SLI_INTF_IF_TYPE_2:
10266         case LPFC_SLI_INTF_IF_TYPE_6:
10267 wait:
10268                 /*
10269                  * Poll the Port Status Register and wait for RDY for
10270                  * up to 30 seconds. If the port doesn't respond, treat
10271                  * it as an error.
10272                  */
10273                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
10274                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
10275                                 STATUSregaddr, &reg_data.word0)) {
10276                                 rc = -ENODEV;
10277                                 goto out;
10278                         }
10279                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
10280                                 break;
10281                         msleep(20);
10282                 }
10283
10284                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
10285                         phba->work_status[0] = readl(
10286                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
10287                         phba->work_status[1] = readl(
10288                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
10289                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10290                                         "2890 Port not ready, port status reg "
10291                                         "0x%x error 1=0x%x, error 2=0x%x\n",
10292                                         reg_data.word0,
10293                                         phba->work_status[0],
10294                                         phba->work_status[1]);
10295                         rc = -ENODEV;
10296                         goto out;
10297                 }
10298
10299                 if (!port_reset) {
10300                         /*
10301                          * Reset the port now
10302                          */
10303                         reg_data.word0 = 0;
10304                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
10305                                LPFC_SLIPORT_LITTLE_ENDIAN);
10306                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
10307                                LPFC_SLIPORT_INIT_PORT);
10308                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
10309                                CTRLregaddr);
10310                         /* flush */
10311                         pci_read_config_word(phba->pcidev,
10312                                              PCI_DEVICE_ID, &devid);
10313
10314                         port_reset = 1;
10315                         msleep(20);
10316                         goto wait;
10317                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
10318                         rc = -ENODEV;
10319                         goto out;
10320                 }
10321                 break;
10322
10323         case LPFC_SLI_INTF_IF_TYPE_1:
10324         default:
10325                 break;
10326         }
10327
10328 out:
10329         /* Catch the not-ready port failure after a port reset. */
10330         if (rc) {
10331                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10332                                 "3317 HBA not functional: IP Reset Failed "
10333                                 "try: echo fw_reset > board_mode\n");
10334                 rc = -ENODEV;
10335         }
10336
10337         return rc;
10338 }
10339
10340 /**
10341  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
10342  * @phba: pointer to lpfc hba data structure.
10343  *
10344  * This routine is invoked to set up the PCI device memory space for device
10345  * with SLI-4 interface spec.
10346  *
10347  * Return codes
10348  *      0 - successful
10349  *      other values - error
10350  **/
10351 static int
10352 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
10353 {
10354         struct pci_dev *pdev = phba->pcidev;
10355         unsigned long bar0map_len, bar1map_len, bar2map_len;
10356         int error;
10357         uint32_t if_type;
10358
10359         if (!pdev)
10360                 return -ENODEV;
10361
10362         /* Set the device DMA mask size */
10363         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
10364         if (error)
10365                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
10366         if (error)
10367                 return error;
10368
10369         /*
10370          * The BARs and register set definitions and offset locations are
10371          * dependent on the if_type.
10372          */
10373         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
10374                                   &phba->sli4_hba.sli_intf.word0)) {
10375                 return -ENODEV;
10376         }
10377
10378         /* There is no SLI3 failback for SLI4 devices. */
10379         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
10380             LPFC_SLI_INTF_VALID) {
10381                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10382                                 "2894 SLI_INTF reg contents invalid "
10383                                 "sli_intf reg 0x%x\n",
10384                                 phba->sli4_hba.sli_intf.word0);
10385                 return -ENODEV;
10386         }
10387
10388         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10389         /*
10390          * Get the bus address of SLI4 device Bar regions and the
10391          * number of bytes required by each mapping. The mapping of the
10392          * particular PCI BARs regions is dependent on the type of
10393          * SLI4 device.
10394          */
10395         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
10396                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
10397                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
10398
10399                 /*
10400                  * Map SLI4 PCI Config Space Register base to a kernel virtual
10401                  * addr
10402                  */
10403                 phba->sli4_hba.conf_regs_memmap_p =
10404                         ioremap(phba->pci_bar0_map, bar0map_len);
10405                 if (!phba->sli4_hba.conf_regs_memmap_p) {
10406                         dev_printk(KERN_ERR, &pdev->dev,
10407                                    "ioremap failed for SLI4 PCI config "
10408                                    "registers.\n");
10409                         return -ENODEV;
10410                 }
10411                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
10412                 /* Set up BAR0 PCI config space register memory map */
10413                 lpfc_sli4_bar0_register_memmap(phba, if_type);
10414         } else {
10415                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
10416                 bar0map_len = pci_resource_len(pdev, 1);
10417                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10418                         dev_printk(KERN_ERR, &pdev->dev,
10419                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
10420                         return -ENODEV;
10421                 }
10422                 phba->sli4_hba.conf_regs_memmap_p =
10423                                 ioremap(phba->pci_bar0_map, bar0map_len);
10424                 if (!phba->sli4_hba.conf_regs_memmap_p) {
10425                         dev_printk(KERN_ERR, &pdev->dev,
10426                                 "ioremap failed for SLI4 PCI config "
10427                                 "registers.\n");
10428                         return -ENODEV;
10429                 }
10430                 lpfc_sli4_bar0_register_memmap(phba, if_type);
10431         }
10432
10433         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10434                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
10435                         /*
10436                          * Map SLI4 if type 0 HBA Control Register base to a
10437                          * kernel virtual address and setup the registers.
10438                          */
10439                         phba->pci_bar1_map = pci_resource_start(pdev,
10440                                                                 PCI_64BIT_BAR2);
10441                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10442                         phba->sli4_hba.ctrl_regs_memmap_p =
10443                                         ioremap(phba->pci_bar1_map,
10444                                                 bar1map_len);
10445                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
10446                                 dev_err(&pdev->dev,
10447                                            "ioremap failed for SLI4 HBA "
10448                                             "control registers.\n");
10449                                 error = -ENOMEM;
10450                                 goto out_iounmap_conf;
10451                         }
10452                         phba->pci_bar2_memmap_p =
10453                                          phba->sli4_hba.ctrl_regs_memmap_p;
10454                         lpfc_sli4_bar1_register_memmap(phba, if_type);
10455                 } else {
10456                         error = -ENOMEM;
10457                         goto out_iounmap_conf;
10458                 }
10459         }
10460
10461         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
10462             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
10463                 /*
10464                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
10465                  * virtual address and setup the registers.
10466                  */
10467                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
10468                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10469                 phba->sli4_hba.drbl_regs_memmap_p =
10470                                 ioremap(phba->pci_bar1_map, bar1map_len);
10471                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
10472                         dev_err(&pdev->dev,
10473                            "ioremap failed for SLI4 HBA doorbell registers.\n");
10474                         error = -ENOMEM;
10475                         goto out_iounmap_conf;
10476                 }
10477                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
10478                 lpfc_sli4_bar1_register_memmap(phba, if_type);
10479         }
10480
10481         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10482                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10483                         /*
10484                          * Map SLI4 if type 0 HBA Doorbell Register base to
10485                          * a kernel virtual address and setup the registers.
10486                          */
10487                         phba->pci_bar2_map = pci_resource_start(pdev,
10488                                                                 PCI_64BIT_BAR4);
10489                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10490                         phba->sli4_hba.drbl_regs_memmap_p =
10491                                         ioremap(phba->pci_bar2_map,
10492                                                 bar2map_len);
10493                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
10494                                 dev_err(&pdev->dev,
10495                                            "ioremap failed for SLI4 HBA"
10496                                            " doorbell registers.\n");
10497                                 error = -ENOMEM;
10498                                 goto out_iounmap_ctrl;
10499                         }
10500                         phba->pci_bar4_memmap_p =
10501                                         phba->sli4_hba.drbl_regs_memmap_p;
10502                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
10503                         if (error)
10504                                 goto out_iounmap_all;
10505                 } else {
10506                         error = -ENOMEM;
10507                         goto out_iounmap_all;
10508                 }
10509         }
10510
10511         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
10512             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10513                 /*
10514                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
10515                  * virtual address and setup the registers.
10516                  */
10517                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
10518                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10519                 phba->sli4_hba.dpp_regs_memmap_p =
10520                                 ioremap(phba->pci_bar2_map, bar2map_len);
10521                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
10522                         dev_err(&pdev->dev,
10523                            "ioremap failed for SLI4 HBA dpp registers.\n");
10524                         error = -ENOMEM;
10525                         goto out_iounmap_ctrl;
10526                 }
10527                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
10528         }
10529
10530         /* Set up the EQ/CQ register handeling functions now */
10531         switch (if_type) {
10532         case LPFC_SLI_INTF_IF_TYPE_0:
10533         case LPFC_SLI_INTF_IF_TYPE_2:
10534                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
10535                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
10536                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
10537                 break;
10538         case LPFC_SLI_INTF_IF_TYPE_6:
10539                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
10540                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
10541                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
10542                 break;
10543         default:
10544                 break;
10545         }
10546
10547         return 0;
10548
10549 out_iounmap_all:
10550         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10551 out_iounmap_ctrl:
10552         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10553 out_iounmap_conf:
10554         iounmap(phba->sli4_hba.conf_regs_memmap_p);
10555
10556         return error;
10557 }
10558
10559 /**
10560  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
10561  * @phba: pointer to lpfc hba data structure.
10562  *
10563  * This routine is invoked to unset the PCI device memory space for device
10564  * with SLI-4 interface spec.
10565  **/
10566 static void
10567 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
10568 {
10569         uint32_t if_type;
10570         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10571
10572         switch (if_type) {
10573         case LPFC_SLI_INTF_IF_TYPE_0:
10574                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10575                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10576                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10577                 break;
10578         case LPFC_SLI_INTF_IF_TYPE_2:
10579                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10580                 break;
10581         case LPFC_SLI_INTF_IF_TYPE_6:
10582                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10583                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10584                 if (phba->sli4_hba.dpp_regs_memmap_p)
10585                         iounmap(phba->sli4_hba.dpp_regs_memmap_p);
10586                 break;
10587         case LPFC_SLI_INTF_IF_TYPE_1:
10588         default:
10589                 dev_printk(KERN_ERR, &phba->pcidev->dev,
10590                            "FATAL - unsupported SLI4 interface type - %d\n",
10591                            if_type);
10592                 break;
10593         }
10594 }
10595
10596 /**
10597  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
10598  * @phba: pointer to lpfc hba data structure.
10599  *
10600  * This routine is invoked to enable the MSI-X interrupt vectors to device
10601  * with SLI-3 interface specs.
10602  *
10603  * Return codes
10604  *   0 - successful
10605  *   other values - error
10606  **/
10607 static int
10608 lpfc_sli_enable_msix(struct lpfc_hba *phba)
10609 {
10610         int rc;
10611         LPFC_MBOXQ_t *pmb;
10612
10613         /* Set up MSI-X multi-message vectors */
10614         rc = pci_alloc_irq_vectors(phba->pcidev,
10615                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
10616         if (rc < 0) {
10617                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10618                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
10619                 goto vec_fail_out;
10620         }
10621
10622         /*
10623          * Assign MSI-X vectors to interrupt handlers
10624          */
10625
10626         /* vector-0 is associated to slow-path handler */
10627         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
10628                          &lpfc_sli_sp_intr_handler, 0,
10629                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
10630         if (rc) {
10631                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10632                                 "0421 MSI-X slow-path request_irq failed "
10633                                 "(%d)\n", rc);
10634                 goto msi_fail_out;
10635         }
10636
10637         /* vector-1 is associated to fast-path handler */
10638         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
10639                          &lpfc_sli_fp_intr_handler, 0,
10640                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
10641
10642         if (rc) {
10643                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10644                                 "0429 MSI-X fast-path request_irq failed "
10645                                 "(%d)\n", rc);
10646                 goto irq_fail_out;
10647         }
10648
10649         /*
10650          * Configure HBA MSI-X attention conditions to messages
10651          */
10652         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10653
10654         if (!pmb) {
10655                 rc = -ENOMEM;
10656                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10657                                 "0474 Unable to allocate memory for issuing "
10658                                 "MBOX_CONFIG_MSI command\n");
10659                 goto mem_fail_out;
10660         }
10661         rc = lpfc_config_msi(phba, pmb);
10662         if (rc)
10663                 goto mbx_fail_out;
10664         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10665         if (rc != MBX_SUCCESS) {
10666                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
10667                                 "0351 Config MSI mailbox command failed, "
10668                                 "mbxCmd x%x, mbxStatus x%x\n",
10669                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
10670                 goto mbx_fail_out;
10671         }
10672
10673         /* Free memory allocated for mailbox command */
10674         mempool_free(pmb, phba->mbox_mem_pool);
10675         return rc;
10676
10677 mbx_fail_out:
10678         /* Free memory allocated for mailbox command */
10679         mempool_free(pmb, phba->mbox_mem_pool);
10680
10681 mem_fail_out:
10682         /* free the irq already requested */
10683         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
10684
10685 irq_fail_out:
10686         /* free the irq already requested */
10687         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
10688
10689 msi_fail_out:
10690         /* Unconfigure MSI-X capability structure */
10691         pci_free_irq_vectors(phba->pcidev);
10692
10693 vec_fail_out:
10694         return rc;
10695 }
10696
10697 /**
10698  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
10699  * @phba: pointer to lpfc hba data structure.
10700  *
10701  * This routine is invoked to enable the MSI interrupt mode to device with
10702  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
10703  * enable the MSI vector. The device driver is responsible for calling the
10704  * request_irq() to register MSI vector with a interrupt the handler, which
10705  * is done in this function.
10706  *
10707  * Return codes
10708  *      0 - successful
10709  *      other values - error
10710  */
10711 static int
10712 lpfc_sli_enable_msi(struct lpfc_hba *phba)
10713 {
10714         int rc;
10715
10716         rc = pci_enable_msi(phba->pcidev);
10717         if (!rc)
10718                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10719                                 "0462 PCI enable MSI mode success.\n");
10720         else {
10721                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10722                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
10723                 return rc;
10724         }
10725
10726         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10727                          0, LPFC_DRIVER_NAME, phba);
10728         if (rc) {
10729                 pci_disable_msi(phba->pcidev);
10730                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10731                                 "0478 MSI request_irq failed (%d)\n", rc);
10732         }
10733         return rc;
10734 }
10735
10736 /**
10737  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
10738  * @phba: pointer to lpfc hba data structure.
10739  * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
10740  *
10741  * This routine is invoked to enable device interrupt and associate driver's
10742  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
10743  * spec. Depends on the interrupt mode configured to the driver, the driver
10744  * will try to fallback from the configured interrupt mode to an interrupt
10745  * mode which is supported by the platform, kernel, and device in the order
10746  * of:
10747  * MSI-X -> MSI -> IRQ.
10748  *
10749  * Return codes
10750  *   0 - successful
10751  *   other values - error
10752  **/
10753 static uint32_t
10754 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10755 {
10756         uint32_t intr_mode = LPFC_INTR_ERROR;
10757         int retval;
10758
10759         if (cfg_mode == 2) {
10760                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
10761                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
10762                 if (!retval) {
10763                         /* Now, try to enable MSI-X interrupt mode */
10764                         retval = lpfc_sli_enable_msix(phba);
10765                         if (!retval) {
10766                                 /* Indicate initialization to MSI-X mode */
10767                                 phba->intr_type = MSIX;
10768                                 intr_mode = 2;
10769                         }
10770                 }
10771         }
10772
10773         /* Fallback to MSI if MSI-X initialization failed */
10774         if (cfg_mode >= 1 && phba->intr_type == NONE) {
10775                 retval = lpfc_sli_enable_msi(phba);
10776                 if (!retval) {
10777                         /* Indicate initialization to MSI mode */
10778                         phba->intr_type = MSI;
10779                         intr_mode = 1;
10780                 }
10781         }
10782
10783         /* Fallback to INTx if both MSI-X/MSI initalization failed */
10784         if (phba->intr_type == NONE) {
10785                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10786                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10787                 if (!retval) {
10788                         /* Indicate initialization to INTx mode */
10789                         phba->intr_type = INTx;
10790                         intr_mode = 0;
10791                 }
10792         }
10793         return intr_mode;
10794 }
10795
10796 /**
10797  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
10798  * @phba: pointer to lpfc hba data structure.
10799  *
10800  * This routine is invoked to disable device interrupt and disassociate the
10801  * driver's interrupt handler(s) from interrupt vector(s) to device with
10802  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
10803  * release the interrupt vector(s) for the message signaled interrupt.
10804  **/
10805 static void
10806 lpfc_sli_disable_intr(struct lpfc_hba *phba)
10807 {
10808         int nr_irqs, i;
10809
10810         if (phba->intr_type == MSIX)
10811                 nr_irqs = LPFC_MSIX_VECTORS;
10812         else
10813                 nr_irqs = 1;
10814
10815         for (i = 0; i < nr_irqs; i++)
10816                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
10817         pci_free_irq_vectors(phba->pcidev);
10818
10819         /* Reset interrupt management states */
10820         phba->intr_type = NONE;
10821         phba->sli.slistat.sli_intr = 0;
10822 }
10823
10824 /**
10825  * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
10826  * @phba: pointer to lpfc hba data structure.
10827  * @id: EQ vector index or Hardware Queue index
10828  * @match: LPFC_FIND_BY_EQ = match by EQ
10829  *         LPFC_FIND_BY_HDWQ = match by Hardware Queue
10830  * Return the CPU that matches the selection criteria
10831  */
10832 static uint16_t
10833 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
10834 {
10835         struct lpfc_vector_map_info *cpup;
10836         int cpu;
10837
10838         /* Loop through all CPUs */
10839         for_each_present_cpu(cpu) {
10840                 cpup = &phba->sli4_hba.cpu_map[cpu];
10841
10842                 /* If we are matching by EQ, there may be multiple CPUs using
10843                  * using the same vector, so select the one with
10844                  * LPFC_CPU_FIRST_IRQ set.
10845                  */
10846                 if ((match == LPFC_FIND_BY_EQ) &&
10847                     (cpup->flag & LPFC_CPU_FIRST_IRQ) &&
10848                     (cpup->eq == id))
10849                         return cpu;
10850
10851                 /* If matching by HDWQ, select the first CPU that matches */
10852                 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
10853                         return cpu;
10854         }
10855         return 0;
10856 }
10857
10858 #ifdef CONFIG_X86
10859 /**
10860  * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
10861  * @phba: pointer to lpfc hba data structure.
10862  * @cpu: CPU map index
10863  * @phys_id: CPU package physical id
10864  * @core_id: CPU core id
10865  */
10866 static int
10867 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
10868                 uint16_t phys_id, uint16_t core_id)
10869 {
10870         struct lpfc_vector_map_info *cpup;
10871         int idx;
10872
10873         for_each_present_cpu(idx) {
10874                 cpup = &phba->sli4_hba.cpu_map[idx];
10875                 /* Does the cpup match the one we are looking for */
10876                 if ((cpup->phys_id == phys_id) &&
10877                     (cpup->core_id == core_id) &&
10878                     (cpu != idx))
10879                         return 1;
10880         }
10881         return 0;
10882 }
10883 #endif
10884
10885 /*
10886  * lpfc_assign_eq_map_info - Assigns eq for vector_map structure
10887  * @phba: pointer to lpfc hba data structure.
10888  * @eqidx: index for eq and irq vector
10889  * @flag: flags to set for vector_map structure
10890  * @cpu: cpu used to index vector_map structure
10891  *
10892  * The routine assigns eq info into vector_map structure
10893  */
10894 static inline void
10895 lpfc_assign_eq_map_info(struct lpfc_hba *phba, uint16_t eqidx, uint16_t flag,
10896                         unsigned int cpu)
10897 {
10898         struct lpfc_vector_map_info *cpup = &phba->sli4_hba.cpu_map[cpu];
10899         struct lpfc_hba_eq_hdl *eqhdl = lpfc_get_eq_hdl(eqidx);
10900
10901         cpup->eq = eqidx;
10902         cpup->flag |= flag;
10903
10904         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10905                         "3336 Set Affinity: CPU %d irq %d eq %d flag x%x\n",
10906                         cpu, eqhdl->irq, cpup->eq, cpup->flag);
10907 }
10908
10909 /**
10910  * lpfc_cpu_map_array_init - Initialize cpu_map structure
10911  * @phba: pointer to lpfc hba data structure.
10912  *
10913  * The routine initializes the cpu_map array structure
10914  */
10915 static void
10916 lpfc_cpu_map_array_init(struct lpfc_hba *phba)
10917 {
10918         struct lpfc_vector_map_info *cpup;
10919         struct lpfc_eq_intr_info *eqi;
10920         int cpu;
10921
10922         for_each_possible_cpu(cpu) {
10923                 cpup = &phba->sli4_hba.cpu_map[cpu];
10924                 cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
10925                 cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
10926                 cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
10927                 cpup->eq = LPFC_VECTOR_MAP_EMPTY;
10928                 cpup->flag = 0;
10929                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, cpu);
10930                 INIT_LIST_HEAD(&eqi->list);
10931                 eqi->icnt = 0;
10932         }
10933 }
10934
10935 /**
10936  * lpfc_hba_eq_hdl_array_init - Initialize hba_eq_hdl structure
10937  * @phba: pointer to lpfc hba data structure.
10938  *
10939  * The routine initializes the hba_eq_hdl array structure
10940  */
10941 static void
10942 lpfc_hba_eq_hdl_array_init(struct lpfc_hba *phba)
10943 {
10944         struct lpfc_hba_eq_hdl *eqhdl;
10945         int i;
10946
10947         for (i = 0; i < phba->cfg_irq_chann; i++) {
10948                 eqhdl = lpfc_get_eq_hdl(i);
10949                 eqhdl->irq = LPFC_VECTOR_MAP_EMPTY;
10950                 eqhdl->phba = phba;
10951         }
10952 }
10953
10954 /**
10955  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
10956  * @phba: pointer to lpfc hba data structure.
10957  * @vectors: number of msix vectors allocated.
10958  *
10959  * The routine will figure out the CPU affinity assignment for every
10960  * MSI-X vector allocated for the HBA.
10961  * In addition, the CPU to IO channel mapping will be calculated
10962  * and the phba->sli4_hba.cpu_map array will reflect this.
10963  */
10964 static void
10965 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
10966 {
10967         int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu;
10968         int max_phys_id, min_phys_id;
10969         int max_core_id, min_core_id;
10970         struct lpfc_vector_map_info *cpup;
10971         struct lpfc_vector_map_info *new_cpup;
10972 #ifdef CONFIG_X86
10973         struct cpuinfo_x86 *cpuinfo;
10974 #endif
10975 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
10976         struct lpfc_hdwq_stat *c_stat;
10977 #endif
10978
10979         max_phys_id = 0;
10980         min_phys_id = LPFC_VECTOR_MAP_EMPTY;
10981         max_core_id = 0;
10982         min_core_id = LPFC_VECTOR_MAP_EMPTY;
10983
10984         /* Update CPU map with physical id and core id of each CPU */
10985         for_each_present_cpu(cpu) {
10986                 cpup = &phba->sli4_hba.cpu_map[cpu];
10987 #ifdef CONFIG_X86
10988                 cpuinfo = &cpu_data(cpu);
10989                 cpup->phys_id = cpuinfo->phys_proc_id;
10990                 cpup->core_id = cpuinfo->cpu_core_id;
10991                 if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id))
10992                         cpup->flag |= LPFC_CPU_MAP_HYPER;
10993 #else
10994                 /* No distinction between CPUs for other platforms */
10995                 cpup->phys_id = 0;
10996                 cpup->core_id = cpu;
10997 #endif
10998
10999                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11000                                 "3328 CPU %d physid %d coreid %d flag x%x\n",
11001                                 cpu, cpup->phys_id, cpup->core_id, cpup->flag);
11002
11003                 if (cpup->phys_id > max_phys_id)
11004                         max_phys_id = cpup->phys_id;
11005                 if (cpup->phys_id < min_phys_id)
11006                         min_phys_id = cpup->phys_id;
11007
11008                 if (cpup->core_id > max_core_id)
11009                         max_core_id = cpup->core_id;
11010                 if (cpup->core_id < min_core_id)
11011                         min_core_id = cpup->core_id;
11012         }
11013
11014         /* After looking at each irq vector assigned to this pcidev, its
11015          * possible to see that not ALL CPUs have been accounted for.
11016          * Next we will set any unassigned (unaffinitized) cpu map
11017          * entries to a IRQ on the same phys_id.
11018          */
11019         first_cpu = cpumask_first(cpu_present_mask);
11020         start_cpu = first_cpu;
11021
11022         for_each_present_cpu(cpu) {
11023                 cpup = &phba->sli4_hba.cpu_map[cpu];
11024
11025                 /* Is this CPU entry unassigned */
11026                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
11027                         /* Mark CPU as IRQ not assigned by the kernel */
11028                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
11029
11030                         /* If so, find a new_cpup thats on the the SAME
11031                          * phys_id as cpup. start_cpu will start where we
11032                          * left off so all unassigned entries don't get assgined
11033                          * the IRQ of the first entry.
11034                          */
11035                         new_cpu = start_cpu;
11036                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11037                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11038                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
11039                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY) &&
11040                                     (new_cpup->phys_id == cpup->phys_id))
11041                                         goto found_same;
11042                                 new_cpu = cpumask_next(
11043                                         new_cpu, cpu_present_mask);
11044                                 if (new_cpu == nr_cpumask_bits)
11045                                         new_cpu = first_cpu;
11046                         }
11047                         /* At this point, we leave the CPU as unassigned */
11048                         continue;
11049 found_same:
11050                         /* We found a matching phys_id, so copy the IRQ info */
11051                         cpup->eq = new_cpup->eq;
11052
11053                         /* Bump start_cpu to the next slot to minmize the
11054                          * chance of having multiple unassigned CPU entries
11055                          * selecting the same IRQ.
11056                          */
11057                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
11058                         if (start_cpu == nr_cpumask_bits)
11059                                 start_cpu = first_cpu;
11060
11061                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11062                                         "3337 Set Affinity: CPU %d "
11063                                         "eq %d from peer cpu %d same "
11064                                         "phys_id (%d)\n",
11065                                         cpu, cpup->eq, new_cpu,
11066                                         cpup->phys_id);
11067                 }
11068         }
11069
11070         /* Set any unassigned cpu map entries to a IRQ on any phys_id */
11071         start_cpu = first_cpu;
11072
11073         for_each_present_cpu(cpu) {
11074                 cpup = &phba->sli4_hba.cpu_map[cpu];
11075
11076                 /* Is this entry unassigned */
11077                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
11078                         /* Mark it as IRQ not assigned by the kernel */
11079                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
11080
11081                         /* If so, find a new_cpup thats on ANY phys_id
11082                          * as the cpup. start_cpu will start where we
11083                          * left off so all unassigned entries don't get
11084                          * assigned the IRQ of the first entry.
11085                          */
11086                         new_cpu = start_cpu;
11087                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11088                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11089                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
11090                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY))
11091                                         goto found_any;
11092                                 new_cpu = cpumask_next(
11093                                         new_cpu, cpu_present_mask);
11094                                 if (new_cpu == nr_cpumask_bits)
11095                                         new_cpu = first_cpu;
11096                         }
11097                         /* We should never leave an entry unassigned */
11098                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11099                                         "3339 Set Affinity: CPU %d "
11100                                         "eq %d UNASSIGNED\n",
11101                                         cpup->hdwq, cpup->eq);
11102                         continue;
11103 found_any:
11104                         /* We found an available entry, copy the IRQ info */
11105                         cpup->eq = new_cpup->eq;
11106
11107                         /* Bump start_cpu to the next slot to minmize the
11108                          * chance of having multiple unassigned CPU entries
11109                          * selecting the same IRQ.
11110                          */
11111                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
11112                         if (start_cpu == nr_cpumask_bits)
11113                                 start_cpu = first_cpu;
11114
11115                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11116                                         "3338 Set Affinity: CPU %d "
11117                                         "eq %d from peer cpu %d (%d/%d)\n",
11118                                         cpu, cpup->eq, new_cpu,
11119                                         new_cpup->phys_id, new_cpup->core_id);
11120                 }
11121         }
11122
11123         /* Assign hdwq indices that are unique across all cpus in the map
11124          * that are also FIRST_CPUs.
11125          */
11126         idx = 0;
11127         for_each_present_cpu(cpu) {
11128                 cpup = &phba->sli4_hba.cpu_map[cpu];
11129
11130                 /* Only FIRST IRQs get a hdwq index assignment. */
11131                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
11132                         continue;
11133
11134                 /* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */
11135                 cpup->hdwq = idx;
11136                 idx++;
11137                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11138                                 "3333 Set Affinity: CPU %d (phys %d core %d): "
11139                                 "hdwq %d eq %d flg x%x\n",
11140                                 cpu, cpup->phys_id, cpup->core_id,
11141                                 cpup->hdwq, cpup->eq, cpup->flag);
11142         }
11143         /* Associate a hdwq with each cpu_map entry
11144          * This will be 1 to 1 - hdwq to cpu, unless there are less
11145          * hardware queues then CPUs. For that case we will just round-robin
11146          * the available hardware queues as they get assigned to CPUs.
11147          * The next_idx is the idx from the FIRST_CPU loop above to account
11148          * for irq_chann < hdwq.  The idx is used for round-robin assignments
11149          * and needs to start at 0.
11150          */
11151         next_idx = idx;
11152         start_cpu = 0;
11153         idx = 0;
11154         for_each_present_cpu(cpu) {
11155                 cpup = &phba->sli4_hba.cpu_map[cpu];
11156
11157                 /* FIRST cpus are already mapped. */
11158                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
11159                         continue;
11160
11161                 /* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq
11162                  * of the unassigned cpus to the next idx so that all
11163                  * hdw queues are fully utilized.
11164                  */
11165                 if (next_idx < phba->cfg_hdw_queue) {
11166                         cpup->hdwq = next_idx;
11167                         next_idx++;
11168                         continue;
11169                 }
11170
11171                 /* Not a First CPU and all hdw_queues are used.  Reuse a
11172                  * Hardware Queue for another CPU, so be smart about it
11173                  * and pick one that has its IRQ/EQ mapped to the same phys_id
11174                  * (CPU package) and core_id.
11175                  */
11176                 new_cpu = start_cpu;
11177                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11178                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11179                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
11180                             new_cpup->phys_id == cpup->phys_id &&
11181                             new_cpup->core_id == cpup->core_id) {
11182                                 goto found_hdwq;
11183                         }
11184                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
11185                         if (new_cpu == nr_cpumask_bits)
11186                                 new_cpu = first_cpu;
11187                 }
11188
11189                 /* If we can't match both phys_id and core_id,
11190                  * settle for just a phys_id match.
11191                  */
11192                 new_cpu = start_cpu;
11193                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11194                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11195                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
11196                             new_cpup->phys_id == cpup->phys_id)
11197                                 goto found_hdwq;
11198
11199                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
11200                         if (new_cpu == nr_cpumask_bits)
11201                                 new_cpu = first_cpu;
11202                 }
11203
11204                 /* Otherwise just round robin on cfg_hdw_queue */
11205                 cpup->hdwq = idx % phba->cfg_hdw_queue;
11206                 idx++;
11207                 goto logit;
11208  found_hdwq:
11209                 /* We found an available entry, copy the IRQ info */
11210                 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
11211                 if (start_cpu == nr_cpumask_bits)
11212                         start_cpu = first_cpu;
11213                 cpup->hdwq = new_cpup->hdwq;
11214  logit:
11215                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11216                                 "3335 Set Affinity: CPU %d (phys %d core %d): "
11217                                 "hdwq %d eq %d flg x%x\n",
11218                                 cpu, cpup->phys_id, cpup->core_id,
11219                                 cpup->hdwq, cpup->eq, cpup->flag);
11220         }
11221
11222         /*
11223          * Initialize the cpu_map slots for not-present cpus in case
11224          * a cpu is hot-added. Perform a simple hdwq round robin assignment.
11225          */
11226         idx = 0;
11227         for_each_possible_cpu(cpu) {
11228                 cpup = &phba->sli4_hba.cpu_map[cpu];
11229 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
11230                 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, cpu);
11231                 c_stat->hdwq_no = cpup->hdwq;
11232 #endif
11233                 if (cpup->hdwq != LPFC_VECTOR_MAP_EMPTY)
11234                         continue;
11235
11236                 cpup->hdwq = idx++ % phba->cfg_hdw_queue;
11237 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
11238                 c_stat->hdwq_no = cpup->hdwq;
11239 #endif
11240                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11241                                 "3340 Set Affinity: not present "
11242                                 "CPU %d hdwq %d\n",
11243                                 cpu, cpup->hdwq);
11244         }
11245
11246         /* The cpu_map array will be used later during initialization
11247          * when EQ / CQ / WQs are allocated and configured.
11248          */
11249         return;
11250 }
11251
11252 /**
11253  * lpfc_cpuhp_get_eq
11254  *
11255  * @phba:   pointer to lpfc hba data structure.
11256  * @cpu:    cpu going offline
11257  * @eqlist: eq list to append to
11258  */
11259 static int
11260 lpfc_cpuhp_get_eq(struct lpfc_hba *phba, unsigned int cpu,
11261                   struct list_head *eqlist)
11262 {
11263         const struct cpumask *maskp;
11264         struct lpfc_queue *eq;
11265         struct cpumask *tmp;
11266         u16 idx;
11267
11268         tmp = kzalloc(cpumask_size(), GFP_KERNEL);
11269         if (!tmp)
11270                 return -ENOMEM;
11271
11272         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11273                 maskp = pci_irq_get_affinity(phba->pcidev, idx);
11274                 if (!maskp)
11275                         continue;
11276                 /*
11277                  * if irq is not affinitized to the cpu going
11278                  * then we don't need to poll the eq attached
11279                  * to it.
11280                  */
11281                 if (!cpumask_and(tmp, maskp, cpumask_of(cpu)))
11282                         continue;
11283                 /* get the cpus that are online and are affini-
11284                  * tized to this irq vector.  If the count is
11285                  * more than 1 then cpuhp is not going to shut-
11286                  * down this vector.  Since this cpu has not
11287                  * gone offline yet, we need >1.
11288                  */
11289                 cpumask_and(tmp, maskp, cpu_online_mask);
11290                 if (cpumask_weight(tmp) > 1)
11291                         continue;
11292
11293                 /* Now that we have an irq to shutdown, get the eq
11294                  * mapped to this irq.  Note: multiple hdwq's in
11295                  * the software can share an eq, but eventually
11296                  * only eq will be mapped to this vector
11297                  */
11298                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
11299                 list_add(&eq->_poll_list, eqlist);
11300         }
11301         kfree(tmp);
11302         return 0;
11303 }
11304
11305 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba)
11306 {
11307         if (phba->sli_rev != LPFC_SLI_REV4)
11308                 return;
11309
11310         cpuhp_state_remove_instance_nocalls(lpfc_cpuhp_state,
11311                                             &phba->cpuhp);
11312         /*
11313          * unregistering the instance doesn't stop the polling
11314          * timer. Wait for the poll timer to retire.
11315          */
11316         synchronize_rcu();
11317         del_timer_sync(&phba->cpuhp_poll_timer);
11318 }
11319
11320 static void lpfc_cpuhp_remove(struct lpfc_hba *phba)
11321 {
11322         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
11323                 return;
11324
11325         __lpfc_cpuhp_remove(phba);
11326 }
11327
11328 static void lpfc_cpuhp_add(struct lpfc_hba *phba)
11329 {
11330         if (phba->sli_rev != LPFC_SLI_REV4)
11331                 return;
11332
11333         rcu_read_lock();
11334
11335         if (!list_empty(&phba->poll_list))
11336                 mod_timer(&phba->cpuhp_poll_timer,
11337                           jiffies + msecs_to_jiffies(LPFC_POLL_HB));
11338
11339         rcu_read_unlock();
11340
11341         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state,
11342                                          &phba->cpuhp);
11343 }
11344
11345 static int __lpfc_cpuhp_checks(struct lpfc_hba *phba, int *retval)
11346 {
11347         if (phba->pport->load_flag & FC_UNLOADING) {
11348                 *retval = -EAGAIN;
11349                 return true;
11350         }
11351
11352         if (phba->sli_rev != LPFC_SLI_REV4) {
11353                 *retval = 0;
11354                 return true;
11355         }
11356
11357         /* proceed with the hotplug */
11358         return false;
11359 }
11360
11361 /**
11362  * lpfc_irq_set_aff - set IRQ affinity
11363  * @eqhdl: EQ handle
11364  * @cpu: cpu to set affinity
11365  *
11366  **/
11367 static inline void
11368 lpfc_irq_set_aff(struct lpfc_hba_eq_hdl *eqhdl, unsigned int cpu)
11369 {
11370         cpumask_clear(&eqhdl->aff_mask);
11371         cpumask_set_cpu(cpu, &eqhdl->aff_mask);
11372         irq_set_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
11373         irq_set_affinity_hint(eqhdl->irq, &eqhdl->aff_mask);
11374 }
11375
11376 /**
11377  * lpfc_irq_clear_aff - clear IRQ affinity
11378  * @eqhdl: EQ handle
11379  *
11380  **/
11381 static inline void
11382 lpfc_irq_clear_aff(struct lpfc_hba_eq_hdl *eqhdl)
11383 {
11384         cpumask_clear(&eqhdl->aff_mask);
11385         irq_clear_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
11386 }
11387
11388 /**
11389  * lpfc_irq_rebalance - rebalances IRQ affinity according to cpuhp event
11390  * @phba: pointer to HBA context object.
11391  * @cpu: cpu going offline/online
11392  * @offline: true, cpu is going offline. false, cpu is coming online.
11393  *
11394  * If cpu is going offline, we'll try our best effort to find the next
11395  * online cpu on the phba's original_mask and migrate all offlining IRQ
11396  * affinities.
11397  *
11398  * If cpu is coming online, reaffinitize the IRQ back to the onlining cpu.
11399  *
11400  * Note: Call only if NUMA or NHT mode is enabled, otherwise rely on
11401  *       PCI_IRQ_AFFINITY to auto-manage IRQ affinity.
11402  *
11403  **/
11404 static void
11405 lpfc_irq_rebalance(struct lpfc_hba *phba, unsigned int cpu, bool offline)
11406 {
11407         struct lpfc_vector_map_info *cpup;
11408         struct cpumask *aff_mask;
11409         unsigned int cpu_select, cpu_next, idx;
11410         const struct cpumask *orig_mask;
11411
11412         if (phba->irq_chann_mode == NORMAL_MODE)
11413                 return;
11414
11415         orig_mask = &phba->sli4_hba.irq_aff_mask;
11416
11417         if (!cpumask_test_cpu(cpu, orig_mask))
11418                 return;
11419
11420         cpup = &phba->sli4_hba.cpu_map[cpu];
11421
11422         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
11423                 return;
11424
11425         if (offline) {
11426                 /* Find next online CPU on original mask */
11427                 cpu_next = cpumask_next_wrap(cpu, orig_mask, cpu, true);
11428                 cpu_select = lpfc_next_online_cpu(orig_mask, cpu_next);
11429
11430                 /* Found a valid CPU */
11431                 if ((cpu_select < nr_cpu_ids) && (cpu_select != cpu)) {
11432                         /* Go through each eqhdl and ensure offlining
11433                          * cpu aff_mask is migrated
11434                          */
11435                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11436                                 aff_mask = lpfc_get_aff_mask(idx);
11437
11438                                 /* Migrate affinity */
11439                                 if (cpumask_test_cpu(cpu, aff_mask))
11440                                         lpfc_irq_set_aff(lpfc_get_eq_hdl(idx),
11441                                                          cpu_select);
11442                         }
11443                 } else {
11444                         /* Rely on irqbalance if no online CPUs left on NUMA */
11445                         for (idx = 0; idx < phba->cfg_irq_chann; idx++)
11446                                 lpfc_irq_clear_aff(lpfc_get_eq_hdl(idx));
11447                 }
11448         } else {
11449                 /* Migrate affinity back to this CPU */
11450                 lpfc_irq_set_aff(lpfc_get_eq_hdl(cpup->eq), cpu);
11451         }
11452 }
11453
11454 static int lpfc_cpu_offline(unsigned int cpu, struct hlist_node *node)
11455 {
11456         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
11457         struct lpfc_queue *eq, *next;
11458         LIST_HEAD(eqlist);
11459         int retval;
11460
11461         if (!phba) {
11462                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
11463                 return 0;
11464         }
11465
11466         if (__lpfc_cpuhp_checks(phba, &retval))
11467                 return retval;
11468
11469         lpfc_irq_rebalance(phba, cpu, true);
11470
11471         retval = lpfc_cpuhp_get_eq(phba, cpu, &eqlist);
11472         if (retval)
11473                 return retval;
11474
11475         /* start polling on these eq's */
11476         list_for_each_entry_safe(eq, next, &eqlist, _poll_list) {
11477                 list_del_init(&eq->_poll_list);
11478                 lpfc_sli4_start_polling(eq);
11479         }
11480
11481         return 0;
11482 }
11483
11484 static int lpfc_cpu_online(unsigned int cpu, struct hlist_node *node)
11485 {
11486         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
11487         struct lpfc_queue *eq, *next;
11488         unsigned int n;
11489         int retval;
11490
11491         if (!phba) {
11492                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
11493                 return 0;
11494         }
11495
11496         if (__lpfc_cpuhp_checks(phba, &retval))
11497                 return retval;
11498
11499         lpfc_irq_rebalance(phba, cpu, false);
11500
11501         list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list) {
11502                 n = lpfc_find_cpu_handle(phba, eq->hdwq, LPFC_FIND_BY_HDWQ);
11503                 if (n == cpu)
11504                         lpfc_sli4_stop_polling(eq);
11505         }
11506
11507         return 0;
11508 }
11509
11510 /**
11511  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
11512  * @phba: pointer to lpfc hba data structure.
11513  *
11514  * This routine is invoked to enable the MSI-X interrupt vectors to device
11515  * with SLI-4 interface spec.  It also allocates MSI-X vectors and maps them
11516  * to cpus on the system.
11517  *
11518  * When cfg_irq_numa is enabled, the adapter will only allocate vectors for
11519  * the number of cpus on the same numa node as this adapter.  The vectors are
11520  * allocated without requesting OS affinity mapping.  A vector will be
11521  * allocated and assigned to each online and offline cpu.  If the cpu is
11522  * online, then affinity will be set to that cpu.  If the cpu is offline, then
11523  * affinity will be set to the nearest peer cpu within the numa node that is
11524  * online.  If there are no online cpus within the numa node, affinity is not
11525  * assigned and the OS may do as it pleases. Note: cpu vector affinity mapping
11526  * is consistent with the way cpu online/offline is handled when cfg_irq_numa is
11527  * configured.
11528  *
11529  * If numa mode is not enabled and there is more than 1 vector allocated, then
11530  * the driver relies on the managed irq interface where the OS assigns vector to
11531  * cpu affinity.  The driver will then use that affinity mapping to setup its
11532  * cpu mapping table.
11533  *
11534  * Return codes
11535  * 0 - successful
11536  * other values - error
11537  **/
11538 static int
11539 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
11540 {
11541         int vectors, rc, index;
11542         char *name;
11543         const struct cpumask *aff_mask = NULL;
11544         unsigned int cpu = 0, cpu_cnt = 0, cpu_select = nr_cpu_ids;
11545         struct lpfc_vector_map_info *cpup;
11546         struct lpfc_hba_eq_hdl *eqhdl;
11547         const struct cpumask *maskp;
11548         unsigned int flags = PCI_IRQ_MSIX;
11549
11550         /* Set up MSI-X multi-message vectors */
11551         vectors = phba->cfg_irq_chann;
11552
11553         if (phba->irq_chann_mode != NORMAL_MODE)
11554                 aff_mask = &phba->sli4_hba.irq_aff_mask;
11555
11556         if (aff_mask) {
11557                 cpu_cnt = cpumask_weight(aff_mask);
11558                 vectors = min(phba->cfg_irq_chann, cpu_cnt);
11559
11560                 /* cpu: iterates over aff_mask including offline or online
11561                  * cpu_select: iterates over online aff_mask to set affinity
11562                  */
11563                 cpu = cpumask_first(aff_mask);
11564                 cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
11565         } else {
11566                 flags |= PCI_IRQ_AFFINITY;
11567         }
11568
11569         rc = pci_alloc_irq_vectors(phba->pcidev, 1, vectors, flags);
11570         if (rc < 0) {
11571                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11572                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
11573                 goto vec_fail_out;
11574         }
11575         vectors = rc;
11576
11577         /* Assign MSI-X vectors to interrupt handlers */
11578         for (index = 0; index < vectors; index++) {
11579                 eqhdl = lpfc_get_eq_hdl(index);
11580                 name = eqhdl->handler_name;
11581                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
11582                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
11583                          LPFC_DRIVER_HANDLER_NAME"%d", index);
11584
11585                 eqhdl->idx = index;
11586                 rc = request_irq(pci_irq_vector(phba->pcidev, index),
11587                          &lpfc_sli4_hba_intr_handler, 0,
11588                          name, eqhdl);
11589                 if (rc) {
11590                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11591                                         "0486 MSI-X fast-path (%d) "
11592                                         "request_irq failed (%d)\n", index, rc);
11593                         goto cfg_fail_out;
11594                 }
11595
11596                 eqhdl->irq = pci_irq_vector(phba->pcidev, index);
11597
11598                 if (aff_mask) {
11599                         /* If found a neighboring online cpu, set affinity */
11600                         if (cpu_select < nr_cpu_ids)
11601                                 lpfc_irq_set_aff(eqhdl, cpu_select);
11602
11603                         /* Assign EQ to cpu_map */
11604                         lpfc_assign_eq_map_info(phba, index,
11605                                                 LPFC_CPU_FIRST_IRQ,
11606                                                 cpu);
11607
11608                         /* Iterate to next offline or online cpu in aff_mask */
11609                         cpu = cpumask_next(cpu, aff_mask);
11610
11611                         /* Find next online cpu in aff_mask to set affinity */
11612                         cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
11613                 } else if (vectors == 1) {
11614                         cpu = cpumask_first(cpu_present_mask);
11615                         lpfc_assign_eq_map_info(phba, index, LPFC_CPU_FIRST_IRQ,
11616                                                 cpu);
11617                 } else {
11618                         maskp = pci_irq_get_affinity(phba->pcidev, index);
11619
11620                         /* Loop through all CPUs associated with vector index */
11621                         for_each_cpu_and(cpu, maskp, cpu_present_mask) {
11622                                 cpup = &phba->sli4_hba.cpu_map[cpu];
11623
11624                                 /* If this is the first CPU thats assigned to
11625                                  * this vector, set LPFC_CPU_FIRST_IRQ.
11626                                  *
11627                                  * With certain platforms its possible that irq
11628                                  * vectors are affinitized to all the cpu's.
11629                                  * This can result in each cpu_map.eq to be set
11630                                  * to the last vector, resulting in overwrite
11631                                  * of all the previous cpu_map.eq.  Ensure that
11632                                  * each vector receives a place in cpu_map.
11633                                  * Later call to lpfc_cpu_affinity_check will
11634                                  * ensure we are nicely balanced out.
11635                                  */
11636                                 if (cpup->eq != LPFC_VECTOR_MAP_EMPTY)
11637                                         continue;
11638                                 lpfc_assign_eq_map_info(phba, index,
11639                                                         LPFC_CPU_FIRST_IRQ,
11640                                                         cpu);
11641                                 break;
11642                         }
11643                 }
11644         }
11645
11646         if (vectors != phba->cfg_irq_chann) {
11647                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11648                                 "3238 Reducing IO channels to match number of "
11649                                 "MSI-X vectors, requested %d got %d\n",
11650                                 phba->cfg_irq_chann, vectors);
11651                 if (phba->cfg_irq_chann > vectors)
11652                         phba->cfg_irq_chann = vectors;
11653         }
11654
11655         return rc;
11656
11657 cfg_fail_out:
11658         /* free the irq already requested */
11659         for (--index; index >= 0; index--) {
11660                 eqhdl = lpfc_get_eq_hdl(index);
11661                 lpfc_irq_clear_aff(eqhdl);
11662                 irq_set_affinity_hint(eqhdl->irq, NULL);
11663                 free_irq(eqhdl->irq, eqhdl);
11664         }
11665
11666         /* Unconfigure MSI-X capability structure */
11667         pci_free_irq_vectors(phba->pcidev);
11668
11669 vec_fail_out:
11670         return rc;
11671 }
11672
11673 /**
11674  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
11675  * @phba: pointer to lpfc hba data structure.
11676  *
11677  * This routine is invoked to enable the MSI interrupt mode to device with
11678  * SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is
11679  * called to enable the MSI vector. The device driver is responsible for
11680  * calling the request_irq() to register MSI vector with a interrupt the
11681  * handler, which is done in this function.
11682  *
11683  * Return codes
11684  *      0 - successful
11685  *      other values - error
11686  **/
11687 static int
11688 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
11689 {
11690         int rc, index;
11691         unsigned int cpu;
11692         struct lpfc_hba_eq_hdl *eqhdl;
11693
11694         rc = pci_alloc_irq_vectors(phba->pcidev, 1, 1,
11695                                    PCI_IRQ_MSI | PCI_IRQ_AFFINITY);
11696         if (rc > 0)
11697                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11698                                 "0487 PCI enable MSI mode success.\n");
11699         else {
11700                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11701                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
11702                 return rc ? rc : -1;
11703         }
11704
11705         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
11706                          0, LPFC_DRIVER_NAME, phba);
11707         if (rc) {
11708                 pci_free_irq_vectors(phba->pcidev);
11709                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11710                                 "0490 MSI request_irq failed (%d)\n", rc);
11711                 return rc;
11712         }
11713
11714         eqhdl = lpfc_get_eq_hdl(0);
11715         eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
11716
11717         cpu = cpumask_first(cpu_present_mask);
11718         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ, cpu);
11719
11720         for (index = 0; index < phba->cfg_irq_chann; index++) {
11721                 eqhdl = lpfc_get_eq_hdl(index);
11722                 eqhdl->idx = index;
11723         }
11724
11725         return 0;
11726 }
11727
11728 /**
11729  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
11730  * @phba: pointer to lpfc hba data structure.
11731  * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
11732  *
11733  * This routine is invoked to enable device interrupt and associate driver's
11734  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
11735  * interface spec. Depends on the interrupt mode configured to the driver,
11736  * the driver will try to fallback from the configured interrupt mode to an
11737  * interrupt mode which is supported by the platform, kernel, and device in
11738  * the order of:
11739  * MSI-X -> MSI -> IRQ.
11740  *
11741  * Return codes
11742  *      0 - successful
11743  *      other values - error
11744  **/
11745 static uint32_t
11746 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
11747 {
11748         uint32_t intr_mode = LPFC_INTR_ERROR;
11749         int retval, idx;
11750
11751         if (cfg_mode == 2) {
11752                 /* Preparation before conf_msi mbox cmd */
11753                 retval = 0;
11754                 if (!retval) {
11755                         /* Now, try to enable MSI-X interrupt mode */
11756                         retval = lpfc_sli4_enable_msix(phba);
11757                         if (!retval) {
11758                                 /* Indicate initialization to MSI-X mode */
11759                                 phba->intr_type = MSIX;
11760                                 intr_mode = 2;
11761                         }
11762                 }
11763         }
11764
11765         /* Fallback to MSI if MSI-X initialization failed */
11766         if (cfg_mode >= 1 && phba->intr_type == NONE) {
11767                 retval = lpfc_sli4_enable_msi(phba);
11768                 if (!retval) {
11769                         /* Indicate initialization to MSI mode */
11770                         phba->intr_type = MSI;
11771                         intr_mode = 1;
11772                 }
11773         }
11774
11775         /* Fallback to INTx if both MSI-X/MSI initalization failed */
11776         if (phba->intr_type == NONE) {
11777                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
11778                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
11779                 if (!retval) {
11780                         struct lpfc_hba_eq_hdl *eqhdl;
11781                         unsigned int cpu;
11782
11783                         /* Indicate initialization to INTx mode */
11784                         phba->intr_type = INTx;
11785                         intr_mode = 0;
11786
11787                         eqhdl = lpfc_get_eq_hdl(0);
11788                         eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
11789
11790                         cpu = cpumask_first(cpu_present_mask);
11791                         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ,
11792                                                 cpu);
11793                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11794                                 eqhdl = lpfc_get_eq_hdl(idx);
11795                                 eqhdl->idx = idx;
11796                         }
11797                 }
11798         }
11799         return intr_mode;
11800 }
11801
11802 /**
11803  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
11804  * @phba: pointer to lpfc hba data structure.
11805  *
11806  * This routine is invoked to disable device interrupt and disassociate
11807  * the driver's interrupt handler(s) from interrupt vector(s) to device
11808  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
11809  * will release the interrupt vector(s) for the message signaled interrupt.
11810  **/
11811 static void
11812 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
11813 {
11814         /* Disable the currently initialized interrupt mode */
11815         if (phba->intr_type == MSIX) {
11816                 int index;
11817                 struct lpfc_hba_eq_hdl *eqhdl;
11818
11819                 /* Free up MSI-X multi-message vectors */
11820                 for (index = 0; index < phba->cfg_irq_chann; index++) {
11821                         eqhdl = lpfc_get_eq_hdl(index);
11822                         lpfc_irq_clear_aff(eqhdl);
11823                         irq_set_affinity_hint(eqhdl->irq, NULL);
11824                         free_irq(eqhdl->irq, eqhdl);
11825                 }
11826         } else {
11827                 free_irq(phba->pcidev->irq, phba);
11828         }
11829
11830         pci_free_irq_vectors(phba->pcidev);
11831
11832         /* Reset interrupt management states */
11833         phba->intr_type = NONE;
11834         phba->sli.slistat.sli_intr = 0;
11835 }
11836
11837 /**
11838  * lpfc_unset_hba - Unset SLI3 hba device initialization
11839  * @phba: pointer to lpfc hba data structure.
11840  *
11841  * This routine is invoked to unset the HBA device initialization steps to
11842  * a device with SLI-3 interface spec.
11843  **/
11844 static void
11845 lpfc_unset_hba(struct lpfc_hba *phba)
11846 {
11847         struct lpfc_vport *vport = phba->pport;
11848         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
11849
11850         spin_lock_irq(shost->host_lock);
11851         vport->load_flag |= FC_UNLOADING;
11852         spin_unlock_irq(shost->host_lock);
11853
11854         kfree(phba->vpi_bmask);
11855         kfree(phba->vpi_ids);
11856
11857         lpfc_stop_hba_timers(phba);
11858
11859         phba->pport->work_port_events = 0;
11860
11861         lpfc_sli_hba_down(phba);
11862
11863         lpfc_sli_brdrestart(phba);
11864
11865         lpfc_sli_disable_intr(phba);
11866
11867         return;
11868 }
11869
11870 /**
11871  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
11872  * @phba: Pointer to HBA context object.
11873  *
11874  * This function is called in the SLI4 code path to wait for completion
11875  * of device's XRIs exchange busy. It will check the XRI exchange busy
11876  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
11877  * that, it will check the XRI exchange busy on outstanding FCP and ELS
11878  * I/Os every 30 seconds, log error message, and wait forever. Only when
11879  * all XRI exchange busy complete, the driver unload shall proceed with
11880  * invoking the function reset ioctl mailbox command to the CNA and the
11881  * the rest of the driver unload resource release.
11882  **/
11883 static void
11884 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
11885 {
11886         struct lpfc_sli4_hdw_queue *qp;
11887         int idx, ccnt;
11888         int wait_time = 0;
11889         int io_xri_cmpl = 1;
11890         int nvmet_xri_cmpl = 1;
11891         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11892
11893         /* Driver just aborted IOs during the hba_unset process.  Pause
11894          * here to give the HBA time to complete the IO and get entries
11895          * into the abts lists.
11896          */
11897         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
11898
11899         /* Wait for NVME pending IO to flush back to transport. */
11900         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
11901                 lpfc_nvme_wait_for_io_drain(phba);
11902
11903         ccnt = 0;
11904         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11905                 qp = &phba->sli4_hba.hdwq[idx];
11906                 io_xri_cmpl = list_empty(&qp->lpfc_abts_io_buf_list);
11907                 if (!io_xri_cmpl) /* if list is NOT empty */
11908                         ccnt++;
11909         }
11910         if (ccnt)
11911                 io_xri_cmpl = 0;
11912
11913         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11914                 nvmet_xri_cmpl =
11915                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11916         }
11917
11918         while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) {
11919                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
11920                         if (!nvmet_xri_cmpl)
11921                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11922                                                 "6424 NVMET XRI exchange busy "
11923                                                 "wait time: %d seconds.\n",
11924                                                 wait_time/1000);
11925                         if (!io_xri_cmpl)
11926                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11927                                                 "6100 IO XRI exchange busy "
11928                                                 "wait time: %d seconds.\n",
11929                                                 wait_time/1000);
11930                         if (!els_xri_cmpl)
11931                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11932                                                 "2878 ELS XRI exchange busy "
11933                                                 "wait time: %d seconds.\n",
11934                                                 wait_time/1000);
11935                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
11936                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
11937                 } else {
11938                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
11939                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
11940                 }
11941
11942                 ccnt = 0;
11943                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11944                         qp = &phba->sli4_hba.hdwq[idx];
11945                         io_xri_cmpl = list_empty(
11946                             &qp->lpfc_abts_io_buf_list);
11947                         if (!io_xri_cmpl) /* if list is NOT empty */
11948                                 ccnt++;
11949                 }
11950                 if (ccnt)
11951                         io_xri_cmpl = 0;
11952
11953                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11954                         nvmet_xri_cmpl = list_empty(
11955                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11956                 }
11957                 els_xri_cmpl =
11958                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11959
11960         }
11961 }
11962
11963 /**
11964  * lpfc_sli4_hba_unset - Unset the fcoe hba
11965  * @phba: Pointer to HBA context object.
11966  *
11967  * This function is called in the SLI4 code path to reset the HBA's FCoE
11968  * function. The caller is not required to hold any lock. This routine
11969  * issues PCI function reset mailbox command to reset the FCoE function.
11970  * At the end of the function, it calls lpfc_hba_down_post function to
11971  * free any pending commands.
11972  **/
11973 static void
11974 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
11975 {
11976         int wait_cnt = 0;
11977         LPFC_MBOXQ_t *mboxq;
11978         struct pci_dev *pdev = phba->pcidev;
11979
11980         lpfc_stop_hba_timers(phba);
11981         if (phba->pport)
11982                 phba->sli4_hba.intr_enable = 0;
11983
11984         /*
11985          * Gracefully wait out the potential current outstanding asynchronous
11986          * mailbox command.
11987          */
11988
11989         /* First, block any pending async mailbox command from posted */
11990         spin_lock_irq(&phba->hbalock);
11991         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
11992         spin_unlock_irq(&phba->hbalock);
11993         /* Now, trying to wait it out if we can */
11994         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11995                 msleep(10);
11996                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
11997                         break;
11998         }
11999         /* Forcefully release the outstanding mailbox command if timed out */
12000         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
12001                 spin_lock_irq(&phba->hbalock);
12002                 mboxq = phba->sli.mbox_active;
12003                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
12004                 __lpfc_mbox_cmpl_put(phba, mboxq);
12005                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
12006                 phba->sli.mbox_active = NULL;
12007                 spin_unlock_irq(&phba->hbalock);
12008         }
12009
12010         /* Abort all iocbs associated with the hba */
12011         lpfc_sli_hba_iocb_abort(phba);
12012
12013         /* Wait for completion of device XRI exchange busy */
12014         lpfc_sli4_xri_exchange_busy_wait(phba);
12015
12016         /* per-phba callback de-registration for hotplug event */
12017         if (phba->pport)
12018                 lpfc_cpuhp_remove(phba);
12019
12020         /* Disable PCI subsystem interrupt */
12021         lpfc_sli4_disable_intr(phba);
12022
12023         /* Disable SR-IOV if enabled */
12024         if (phba->cfg_sriov_nr_virtfn)
12025                 pci_disable_sriov(pdev);
12026
12027         /* Stop kthread signal shall trigger work_done one more time */
12028         kthread_stop(phba->worker_thread);
12029
12030         /* Disable FW logging to host memory */
12031         lpfc_ras_stop_fwlog(phba);
12032
12033         /* Unset the queues shared with the hardware then release all
12034          * allocated resources.
12035          */
12036         lpfc_sli4_queue_unset(phba);
12037         lpfc_sli4_queue_destroy(phba);
12038
12039         /* Reset SLI4 HBA FCoE function */
12040         lpfc_pci_function_reset(phba);
12041
12042         /* Free RAS DMA memory */
12043         if (phba->ras_fwlog.ras_enabled)
12044                 lpfc_sli4_ras_dma_free(phba);
12045
12046         /* Stop the SLI4 device port */
12047         if (phba->pport)
12048                 phba->pport->work_port_events = 0;
12049 }
12050
12051  /**
12052  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
12053  * @phba: Pointer to HBA context object.
12054  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
12055  *
12056  * This function is called in the SLI4 code path to read the port's
12057  * sli4 capabilities.
12058  *
12059  * This function may be be called from any context that can block-wait
12060  * for the completion.  The expectation is that this routine is called
12061  * typically from probe_one or from the online routine.
12062  **/
12063 int
12064 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
12065 {
12066         int rc;
12067         struct lpfc_mqe *mqe;
12068         struct lpfc_pc_sli4_params *sli4_params;
12069         uint32_t mbox_tmo;
12070
12071         rc = 0;
12072         mqe = &mboxq->u.mqe;
12073
12074         /* Read the port's SLI4 Parameters port capabilities */
12075         lpfc_pc_sli4_params(mboxq);
12076         if (!phba->sli4_hba.intr_enable)
12077                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
12078         else {
12079                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
12080                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
12081         }
12082
12083         if (unlikely(rc))
12084                 return 1;
12085
12086         sli4_params = &phba->sli4_hba.pc_sli4_params;
12087         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
12088         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
12089         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
12090         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
12091                                              &mqe->un.sli4_params);
12092         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
12093                                              &mqe->un.sli4_params);
12094         sli4_params->proto_types = mqe->un.sli4_params.word3;
12095         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
12096         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
12097         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
12098         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
12099         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
12100         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
12101         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
12102         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
12103         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
12104         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
12105         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
12106         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
12107         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
12108         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
12109         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
12110         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
12111         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
12112         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
12113         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
12114         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
12115
12116         /* Make sure that sge_supp_len can be handled by the driver */
12117         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
12118                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
12119
12120         return rc;
12121 }
12122
12123 /**
12124  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
12125  * @phba: Pointer to HBA context object.
12126  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
12127  *
12128  * This function is called in the SLI4 code path to read the port's
12129  * sli4 capabilities.
12130  *
12131  * This function may be be called from any context that can block-wait
12132  * for the completion.  The expectation is that this routine is called
12133  * typically from probe_one or from the online routine.
12134  **/
12135 int
12136 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
12137 {
12138         int rc;
12139         struct lpfc_mqe *mqe = &mboxq->u.mqe;
12140         struct lpfc_pc_sli4_params *sli4_params;
12141         uint32_t mbox_tmo;
12142         int length;
12143         bool exp_wqcq_pages = true;
12144         struct lpfc_sli4_parameters *mbx_sli4_parameters;
12145
12146         /*
12147          * By default, the driver assumes the SLI4 port requires RPI
12148          * header postings.  The SLI4_PARAM response will correct this
12149          * assumption.
12150          */
12151         phba->sli4_hba.rpi_hdrs_in_use = 1;
12152
12153         /* Read the port's SLI4 Config Parameters */
12154         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
12155                   sizeof(struct lpfc_sli4_cfg_mhdr));
12156         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
12157                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
12158                          length, LPFC_SLI4_MBX_EMBED);
12159         if (!phba->sli4_hba.intr_enable)
12160                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
12161         else {
12162                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
12163                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
12164         }
12165         if (unlikely(rc))
12166                 return rc;
12167         sli4_params = &phba->sli4_hba.pc_sli4_params;
12168         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
12169         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
12170         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
12171         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
12172         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
12173                                              mbx_sli4_parameters);
12174         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
12175                                              mbx_sli4_parameters);
12176         if (bf_get(cfg_phwq, mbx_sli4_parameters))
12177                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
12178         else
12179                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
12180         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
12181         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
12182         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
12183         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
12184         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
12185         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
12186         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
12187         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
12188         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
12189         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
12190         sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
12191         sli4_params->pls = bf_get(cfg_pvl, mbx_sli4_parameters);
12192         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
12193                                             mbx_sli4_parameters);
12194         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
12195         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
12196                                            mbx_sli4_parameters);
12197         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
12198         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
12199
12200         /* Check for Extended Pre-Registered SGL support */
12201         phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters);
12202
12203         /* Check for firmware nvme support */
12204         rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
12205                      bf_get(cfg_xib, mbx_sli4_parameters));
12206
12207         if (rc) {
12208                 /* Save this to indicate the Firmware supports NVME */
12209                 sli4_params->nvme = 1;
12210
12211                 /* Firmware NVME support, check driver FC4 NVME support */
12212                 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
12213                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
12214                                         "6133 Disabling NVME support: "
12215                                         "FC4 type not supported: x%x\n",
12216                                         phba->cfg_enable_fc4_type);
12217                         goto fcponly;
12218                 }
12219         } else {
12220                 /* No firmware NVME support, check driver FC4 NVME support */
12221                 sli4_params->nvme = 0;
12222                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12223                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
12224                                         "6101 Disabling NVME support: Not "
12225                                         "supported by firmware (%d %d) x%x\n",
12226                                         bf_get(cfg_nvme, mbx_sli4_parameters),
12227                                         bf_get(cfg_xib, mbx_sli4_parameters),
12228                                         phba->cfg_enable_fc4_type);
12229 fcponly:
12230                         phba->nvme_support = 0;
12231                         phba->nvmet_support = 0;
12232                         phba->cfg_nvmet_mrq = 0;
12233                         phba->cfg_nvme_seg_cnt = 0;
12234
12235                         /* If no FC4 type support, move to just SCSI support */
12236                         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
12237                                 return -ENODEV;
12238                         phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
12239                 }
12240         }
12241
12242         /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
12243          * accommodate 512K and 1M IOs in a single nvme buf.
12244          */
12245         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12246                 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
12247
12248         /* Only embed PBDE for if_type 6, PBDE support requires xib be set */
12249         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
12250             LPFC_SLI_INTF_IF_TYPE_6) || (!bf_get(cfg_xib, mbx_sli4_parameters)))
12251                 phba->cfg_enable_pbde = 0;
12252
12253         /*
12254          * To support Suppress Response feature we must satisfy 3 conditions.
12255          * lpfc_suppress_rsp module parameter must be set (default).
12256          * In SLI4-Parameters Descriptor:
12257          * Extended Inline Buffers (XIB) must be supported.
12258          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
12259          * (double negative).
12260          */
12261         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
12262             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
12263                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
12264         else
12265                 phba->cfg_suppress_rsp = 0;
12266
12267         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
12268                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
12269
12270         /* Make sure that sge_supp_len can be handled by the driver */
12271         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
12272                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
12273
12274         /*
12275          * Check whether the adapter supports an embedded copy of the
12276          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
12277          * to use this option, 128-byte WQEs must be used.
12278          */
12279         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
12280                 phba->fcp_embed_io = 1;
12281         else
12282                 phba->fcp_embed_io = 0;
12283
12284         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
12285                         "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
12286                         bf_get(cfg_xib, mbx_sli4_parameters),
12287                         phba->cfg_enable_pbde,
12288                         phba->fcp_embed_io, phba->nvme_support,
12289                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
12290
12291         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
12292             LPFC_SLI_INTF_IF_TYPE_2) &&
12293             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
12294                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
12295                 exp_wqcq_pages = false;
12296
12297         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
12298             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
12299             exp_wqcq_pages &&
12300             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
12301                 phba->enab_exp_wqcq_pages = 1;
12302         else
12303                 phba->enab_exp_wqcq_pages = 0;
12304         /*
12305          * Check if the SLI port supports MDS Diagnostics
12306          */
12307         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
12308                 phba->mds_diags_support = 1;
12309         else
12310                 phba->mds_diags_support = 0;
12311
12312         /*
12313          * Check if the SLI port supports NSLER
12314          */
12315         if (bf_get(cfg_nsler, mbx_sli4_parameters))
12316                 phba->nsler = 1;
12317         else
12318                 phba->nsler = 0;
12319
12320         return 0;
12321 }
12322
12323 /**
12324  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
12325  * @pdev: pointer to PCI device
12326  * @pid: pointer to PCI device identifier
12327  *
12328  * This routine is to be called to attach a device with SLI-3 interface spec
12329  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
12330  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
12331  * information of the device and driver to see if the driver state that it can
12332  * support this kind of device. If the match is successful, the driver core
12333  * invokes this routine. If this routine determines it can claim the HBA, it
12334  * does all the initialization that it needs to do to handle the HBA properly.
12335  *
12336  * Return code
12337  *      0 - driver can claim the device
12338  *      negative value - driver can not claim the device
12339  **/
12340 static int
12341 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
12342 {
12343         struct lpfc_hba   *phba;
12344         struct lpfc_vport *vport = NULL;
12345         struct Scsi_Host  *shost = NULL;
12346         int error;
12347         uint32_t cfg_mode, intr_mode;
12348
12349         /* Allocate memory for HBA structure */
12350         phba = lpfc_hba_alloc(pdev);
12351         if (!phba)
12352                 return -ENOMEM;
12353
12354         /* Perform generic PCI device enabling operation */
12355         error = lpfc_enable_pci_dev(phba);
12356         if (error)
12357                 goto out_free_phba;
12358
12359         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
12360         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
12361         if (error)
12362                 goto out_disable_pci_dev;
12363
12364         /* Set up SLI-3 specific device PCI memory space */
12365         error = lpfc_sli_pci_mem_setup(phba);
12366         if (error) {
12367                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12368                                 "1402 Failed to set up pci memory space.\n");
12369                 goto out_disable_pci_dev;
12370         }
12371
12372         /* Set up SLI-3 specific device driver resources */
12373         error = lpfc_sli_driver_resource_setup(phba);
12374         if (error) {
12375                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12376                                 "1404 Failed to set up driver resource.\n");
12377                 goto out_unset_pci_mem_s3;
12378         }
12379
12380         /* Initialize and populate the iocb list per host */
12381
12382         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
12383         if (error) {
12384                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12385                                 "1405 Failed to initialize iocb list.\n");
12386                 goto out_unset_driver_resource_s3;
12387         }
12388
12389         /* Set up common device driver resources */
12390         error = lpfc_setup_driver_resource_phase2(phba);
12391         if (error) {
12392                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12393                                 "1406 Failed to set up driver resource.\n");
12394                 goto out_free_iocb_list;
12395         }
12396
12397         /* Get the default values for Model Name and Description */
12398         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
12399
12400         /* Create SCSI host to the physical port */
12401         error = lpfc_create_shost(phba);
12402         if (error) {
12403                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12404                                 "1407 Failed to create scsi host.\n");
12405                 goto out_unset_driver_resource;
12406         }
12407
12408         /* Configure sysfs attributes */
12409         vport = phba->pport;
12410         error = lpfc_alloc_sysfs_attr(vport);
12411         if (error) {
12412                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12413                                 "1476 Failed to allocate sysfs attr\n");
12414                 goto out_destroy_shost;
12415         }
12416
12417         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
12418         /* Now, trying to enable interrupt and bring up the device */
12419         cfg_mode = phba->cfg_use_msi;
12420         while (true) {
12421                 /* Put device to a known state before enabling interrupt */
12422                 lpfc_stop_port(phba);
12423                 /* Configure and enable interrupt */
12424                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
12425                 if (intr_mode == LPFC_INTR_ERROR) {
12426                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12427                                         "0431 Failed to enable interrupt.\n");
12428                         error = -ENODEV;
12429                         goto out_free_sysfs_attr;
12430                 }
12431                 /* SLI-3 HBA setup */
12432                 if (lpfc_sli_hba_setup(phba)) {
12433                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12434                                         "1477 Failed to set up hba\n");
12435                         error = -ENODEV;
12436                         goto out_remove_device;
12437                 }
12438
12439                 /* Wait 50ms for the interrupts of previous mailbox commands */
12440                 msleep(50);
12441                 /* Check active interrupts on message signaled interrupts */
12442                 if (intr_mode == 0 ||
12443                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
12444                         /* Log the current active interrupt mode */
12445                         phba->intr_mode = intr_mode;
12446                         lpfc_log_intr_mode(phba, intr_mode);
12447                         break;
12448                 } else {
12449                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12450                                         "0447 Configure interrupt mode (%d) "
12451                                         "failed active interrupt test.\n",
12452                                         intr_mode);
12453                         /* Disable the current interrupt mode */
12454                         lpfc_sli_disable_intr(phba);
12455                         /* Try next level of interrupt mode */
12456                         cfg_mode = --intr_mode;
12457                 }
12458         }
12459
12460         /* Perform post initialization setup */
12461         lpfc_post_init_setup(phba);
12462
12463         /* Check if there are static vports to be created. */
12464         lpfc_create_static_vport(phba);
12465
12466         return 0;
12467
12468 out_remove_device:
12469         lpfc_unset_hba(phba);
12470 out_free_sysfs_attr:
12471         lpfc_free_sysfs_attr(vport);
12472 out_destroy_shost:
12473         lpfc_destroy_shost(phba);
12474 out_unset_driver_resource:
12475         lpfc_unset_driver_resource_phase2(phba);
12476 out_free_iocb_list:
12477         lpfc_free_iocb_list(phba);
12478 out_unset_driver_resource_s3:
12479         lpfc_sli_driver_resource_unset(phba);
12480 out_unset_pci_mem_s3:
12481         lpfc_sli_pci_mem_unset(phba);
12482 out_disable_pci_dev:
12483         lpfc_disable_pci_dev(phba);
12484         if (shost)
12485                 scsi_host_put(shost);
12486 out_free_phba:
12487         lpfc_hba_free(phba);
12488         return error;
12489 }
12490
12491 /**
12492  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
12493  * @pdev: pointer to PCI device
12494  *
12495  * This routine is to be called to disattach a device with SLI-3 interface
12496  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
12497  * removed from PCI bus, it performs all the necessary cleanup for the HBA
12498  * device to be removed from the PCI subsystem properly.
12499  **/
12500 static void
12501 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
12502 {
12503         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
12504         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
12505         struct lpfc_vport **vports;
12506         struct lpfc_hba   *phba = vport->phba;
12507         int i;
12508
12509         spin_lock_irq(&phba->hbalock);
12510         vport->load_flag |= FC_UNLOADING;
12511         spin_unlock_irq(&phba->hbalock);
12512
12513         lpfc_free_sysfs_attr(vport);
12514
12515         /* Release all the vports against this physical port */
12516         vports = lpfc_create_vport_work_array(phba);
12517         if (vports != NULL)
12518                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
12519                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
12520                                 continue;
12521                         fc_vport_terminate(vports[i]->fc_vport);
12522                 }
12523         lpfc_destroy_vport_work_array(phba, vports);
12524
12525         /* Remove FC host and then SCSI host with the physical port */
12526         fc_remove_host(shost);
12527         scsi_remove_host(shost);
12528
12529         lpfc_cleanup(vport);
12530
12531         /*
12532          * Bring down the SLI Layer. This step disable all interrupts,
12533          * clears the rings, discards all mailbox commands, and resets
12534          * the HBA.
12535          */
12536
12537         /* HBA interrupt will be disabled after this call */
12538         lpfc_sli_hba_down(phba);
12539         /* Stop kthread signal shall trigger work_done one more time */
12540         kthread_stop(phba->worker_thread);
12541         /* Final cleanup of txcmplq and reset the HBA */
12542         lpfc_sli_brdrestart(phba);
12543
12544         kfree(phba->vpi_bmask);
12545         kfree(phba->vpi_ids);
12546
12547         lpfc_stop_hba_timers(phba);
12548         spin_lock_irq(&phba->port_list_lock);
12549         list_del_init(&vport->listentry);
12550         spin_unlock_irq(&phba->port_list_lock);
12551
12552         lpfc_debugfs_terminate(vport);
12553
12554         /* Disable SR-IOV if enabled */
12555         if (phba->cfg_sriov_nr_virtfn)
12556                 pci_disable_sriov(pdev);
12557
12558         /* Disable interrupt */
12559         lpfc_sli_disable_intr(phba);
12560
12561         scsi_host_put(shost);
12562
12563         /*
12564          * Call scsi_free before mem_free since scsi bufs are released to their
12565          * corresponding pools here.
12566          */
12567         lpfc_scsi_free(phba);
12568         lpfc_free_iocb_list(phba);
12569
12570         lpfc_mem_free_all(phba);
12571
12572         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
12573                           phba->hbqslimp.virt, phba->hbqslimp.phys);
12574
12575         /* Free resources associated with SLI2 interface */
12576         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
12577                           phba->slim2p.virt, phba->slim2p.phys);
12578
12579         /* unmap adapter SLIM and Control Registers */
12580         iounmap(phba->ctrl_regs_memmap_p);
12581         iounmap(phba->slim_memmap_p);
12582
12583         lpfc_hba_free(phba);
12584
12585         pci_release_mem_regions(pdev);
12586         pci_disable_device(pdev);
12587 }
12588
12589 /**
12590  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
12591  * @pdev: pointer to PCI device
12592  * @msg: power management message
12593  *
12594  * This routine is to be called from the kernel's PCI subsystem to support
12595  * system Power Management (PM) to device with SLI-3 interface spec. When
12596  * PM invokes this method, it quiesces the device by stopping the driver's
12597  * worker thread for the device, turning off device's interrupt and DMA,
12598  * and bring the device offline. Note that as the driver implements the
12599  * minimum PM requirements to a power-aware driver's PM support for the
12600  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
12601  * to the suspend() method call will be treated as SUSPEND and the driver will
12602  * fully reinitialize its device during resume() method call, the driver will
12603  * set device to PCI_D3hot state in PCI config space instead of setting it
12604  * according to the @msg provided by the PM.
12605  *
12606  * Return code
12607  *      0 - driver suspended the device
12608  *      Error otherwise
12609  **/
12610 static int
12611 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
12612 {
12613         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12614         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12615
12616         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12617                         "0473 PCI device Power Management suspend.\n");
12618
12619         /* Bring down the device */
12620         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12621         lpfc_offline(phba);
12622         kthread_stop(phba->worker_thread);
12623
12624         /* Disable interrupt from device */
12625         lpfc_sli_disable_intr(phba);
12626
12627         /* Save device state to PCI config space */
12628         pci_save_state(pdev);
12629         pci_set_power_state(pdev, PCI_D3hot);
12630
12631         return 0;
12632 }
12633
12634 /**
12635  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
12636  * @pdev: pointer to PCI device
12637  *
12638  * This routine is to be called from the kernel's PCI subsystem to support
12639  * system Power Management (PM) to device with SLI-3 interface spec. When PM
12640  * invokes this method, it restores the device's PCI config space state and
12641  * fully reinitializes the device and brings it online. Note that as the
12642  * driver implements the minimum PM requirements to a power-aware driver's
12643  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
12644  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
12645  * driver will fully reinitialize its device during resume() method call,
12646  * the device will be set to PCI_D0 directly in PCI config space before
12647  * restoring the state.
12648  *
12649  * Return code
12650  *      0 - driver suspended the device
12651  *      Error otherwise
12652  **/
12653 static int
12654 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
12655 {
12656         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12657         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12658         uint32_t intr_mode;
12659         int error;
12660
12661         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12662                         "0452 PCI device Power Management resume.\n");
12663
12664         /* Restore device state from PCI config space */
12665         pci_set_power_state(pdev, PCI_D0);
12666         pci_restore_state(pdev);
12667
12668         /*
12669          * As the new kernel behavior of pci_restore_state() API call clears
12670          * device saved_state flag, need to save the restored state again.
12671          */
12672         pci_save_state(pdev);
12673
12674         if (pdev->is_busmaster)
12675                 pci_set_master(pdev);
12676
12677         /* Startup the kernel thread for this host adapter. */
12678         phba->worker_thread = kthread_run(lpfc_do_work, phba,
12679                                         "lpfc_worker_%d", phba->brd_no);
12680         if (IS_ERR(phba->worker_thread)) {
12681                 error = PTR_ERR(phba->worker_thread);
12682                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12683                                 "0434 PM resume failed to start worker "
12684                                 "thread: error=x%x.\n", error);
12685                 return error;
12686         }
12687
12688         /* Configure and enable interrupt */
12689         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
12690         if (intr_mode == LPFC_INTR_ERROR) {
12691                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12692                                 "0430 PM resume Failed to enable interrupt\n");
12693                 return -EIO;
12694         } else
12695                 phba->intr_mode = intr_mode;
12696
12697         /* Restart HBA and bring it online */
12698         lpfc_sli_brdrestart(phba);
12699         lpfc_online(phba);
12700
12701         /* Log the current active interrupt mode */
12702         lpfc_log_intr_mode(phba, phba->intr_mode);
12703
12704         return 0;
12705 }
12706
12707 /**
12708  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
12709  * @phba: pointer to lpfc hba data structure.
12710  *
12711  * This routine is called to prepare the SLI3 device for PCI slot recover. It
12712  * aborts all the outstanding SCSI I/Os to the pci device.
12713  **/
12714 static void
12715 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
12716 {
12717         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12718                         "2723 PCI channel I/O abort preparing for recovery\n");
12719
12720         /*
12721          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
12722          * and let the SCSI mid-layer to retry them to recover.
12723          */
12724         lpfc_sli_abort_fcp_rings(phba);
12725 }
12726
12727 /**
12728  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
12729  * @phba: pointer to lpfc hba data structure.
12730  *
12731  * This routine is called to prepare the SLI3 device for PCI slot reset. It
12732  * disables the device interrupt and pci device, and aborts the internal FCP
12733  * pending I/Os.
12734  **/
12735 static void
12736 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
12737 {
12738         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12739                         "2710 PCI channel disable preparing for reset\n");
12740
12741         /* Block any management I/Os to the device */
12742         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
12743
12744         /* Block all SCSI devices' I/Os on the host */
12745         lpfc_scsi_dev_block(phba);
12746
12747         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
12748         lpfc_sli_flush_io_rings(phba);
12749
12750         /* stop all timers */
12751         lpfc_stop_hba_timers(phba);
12752
12753         /* Disable interrupt and pci device */
12754         lpfc_sli_disable_intr(phba);
12755         pci_disable_device(phba->pcidev);
12756 }
12757
12758 /**
12759  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
12760  * @phba: pointer to lpfc hba data structure.
12761  *
12762  * This routine is called to prepare the SLI3 device for PCI slot permanently
12763  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
12764  * pending I/Os.
12765  **/
12766 static void
12767 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
12768 {
12769         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12770                         "2711 PCI channel permanent disable for failure\n");
12771         /* Block all SCSI devices' I/Os on the host */
12772         lpfc_scsi_dev_block(phba);
12773
12774         /* stop all timers */
12775         lpfc_stop_hba_timers(phba);
12776
12777         /* Clean up all driver's outstanding SCSI I/Os */
12778         lpfc_sli_flush_io_rings(phba);
12779 }
12780
12781 /**
12782  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
12783  * @pdev: pointer to PCI device.
12784  * @state: the current PCI connection state.
12785  *
12786  * This routine is called from the PCI subsystem for I/O error handling to
12787  * device with SLI-3 interface spec. This function is called by the PCI
12788  * subsystem after a PCI bus error affecting this device has been detected.
12789  * When this function is invoked, it will need to stop all the I/Os and
12790  * interrupt(s) to the device. Once that is done, it will return
12791  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
12792  * as desired.
12793  *
12794  * Return codes
12795  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
12796  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12797  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12798  **/
12799 static pci_ers_result_t
12800 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
12801 {
12802         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12803         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12804
12805         switch (state) {
12806         case pci_channel_io_normal:
12807                 /* Non-fatal error, prepare for recovery */
12808                 lpfc_sli_prep_dev_for_recover(phba);
12809                 return PCI_ERS_RESULT_CAN_RECOVER;
12810         case pci_channel_io_frozen:
12811                 /* Fatal error, prepare for slot reset */
12812                 lpfc_sli_prep_dev_for_reset(phba);
12813                 return PCI_ERS_RESULT_NEED_RESET;
12814         case pci_channel_io_perm_failure:
12815                 /* Permanent failure, prepare for device down */
12816                 lpfc_sli_prep_dev_for_perm_failure(phba);
12817                 return PCI_ERS_RESULT_DISCONNECT;
12818         default:
12819                 /* Unknown state, prepare and request slot reset */
12820                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12821                                 "0472 Unknown PCI error state: x%x\n", state);
12822                 lpfc_sli_prep_dev_for_reset(phba);
12823                 return PCI_ERS_RESULT_NEED_RESET;
12824         }
12825 }
12826
12827 /**
12828  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
12829  * @pdev: pointer to PCI device.
12830  *
12831  * This routine is called from the PCI subsystem for error handling to
12832  * device with SLI-3 interface spec. This is called after PCI bus has been
12833  * reset to restart the PCI card from scratch, as if from a cold-boot.
12834  * During the PCI subsystem error recovery, after driver returns
12835  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
12836  * recovery and then call this routine before calling the .resume method
12837  * to recover the device. This function will initialize the HBA device,
12838  * enable the interrupt, but it will just put the HBA to offline state
12839  * without passing any I/O traffic.
12840  *
12841  * Return codes
12842  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12843  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12844  */
12845 static pci_ers_result_t
12846 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
12847 {
12848         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12849         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12850         struct lpfc_sli *psli = &phba->sli;
12851         uint32_t intr_mode;
12852
12853         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
12854         if (pci_enable_device_mem(pdev)) {
12855                 printk(KERN_ERR "lpfc: Cannot re-enable "
12856                         "PCI device after reset.\n");
12857                 return PCI_ERS_RESULT_DISCONNECT;
12858         }
12859
12860         pci_restore_state(pdev);
12861
12862         /*
12863          * As the new kernel behavior of pci_restore_state() API call clears
12864          * device saved_state flag, need to save the restored state again.
12865          */
12866         pci_save_state(pdev);
12867
12868         if (pdev->is_busmaster)
12869                 pci_set_master(pdev);
12870
12871         spin_lock_irq(&phba->hbalock);
12872         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
12873         spin_unlock_irq(&phba->hbalock);
12874
12875         /* Configure and enable interrupt */
12876         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
12877         if (intr_mode == LPFC_INTR_ERROR) {
12878                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12879                                 "0427 Cannot re-enable interrupt after "
12880                                 "slot reset.\n");
12881                 return PCI_ERS_RESULT_DISCONNECT;
12882         } else
12883                 phba->intr_mode = intr_mode;
12884
12885         /* Take device offline, it will perform cleanup */
12886         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12887         lpfc_offline(phba);
12888         lpfc_sli_brdrestart(phba);
12889
12890         /* Log the current active interrupt mode */
12891         lpfc_log_intr_mode(phba, phba->intr_mode);
12892
12893         return PCI_ERS_RESULT_RECOVERED;
12894 }
12895
12896 /**
12897  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
12898  * @pdev: pointer to PCI device
12899  *
12900  * This routine is called from the PCI subsystem for error handling to device
12901  * with SLI-3 interface spec. It is called when kernel error recovery tells
12902  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
12903  * error recovery. After this call, traffic can start to flow from this device
12904  * again.
12905  */
12906 static void
12907 lpfc_io_resume_s3(struct pci_dev *pdev)
12908 {
12909         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12910         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12911
12912         /* Bring device online, it will be no-op for non-fatal error resume */
12913         lpfc_online(phba);
12914 }
12915
12916 /**
12917  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
12918  * @phba: pointer to lpfc hba data structure.
12919  *
12920  * returns the number of ELS/CT IOCBs to reserve
12921  **/
12922 int
12923 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
12924 {
12925         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
12926
12927         if (phba->sli_rev == LPFC_SLI_REV4) {
12928                 if (max_xri <= 100)
12929                         return 10;
12930                 else if (max_xri <= 256)
12931                         return 25;
12932                 else if (max_xri <= 512)
12933                         return 50;
12934                 else if (max_xri <= 1024)
12935                         return 100;
12936                 else if (max_xri <= 1536)
12937                         return 150;
12938                 else if (max_xri <= 2048)
12939                         return 200;
12940                 else
12941                         return 250;
12942         } else
12943                 return 0;
12944 }
12945
12946 /**
12947  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
12948  * @phba: pointer to lpfc hba data structure.
12949  *
12950  * returns the number of ELS/CT + NVMET IOCBs to reserve
12951  **/
12952 int
12953 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
12954 {
12955         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
12956
12957         if (phba->nvmet_support)
12958                 max_xri += LPFC_NVMET_BUF_POST;
12959         return max_xri;
12960 }
12961
12962
12963 static int
12964 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
12965         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
12966         const struct firmware *fw)
12967 {
12968         int rc;
12969
12970         /* Three cases:  (1) FW was not supported on the detected adapter.
12971          * (2) FW update has been locked out administratively.
12972          * (3) Some other error during FW update.
12973          * In each case, an unmaskable message is written to the console
12974          * for admin diagnosis.
12975          */
12976         if (offset == ADD_STATUS_FW_NOT_SUPPORTED ||
12977             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
12978              magic_number != MAGIC_NUMBER_G6) ||
12979             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC &&
12980              magic_number != MAGIC_NUMBER_G7)) {
12981                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12982                                 "3030 This firmware version is not supported on"
12983                                 " this HBA model. Device:%x Magic:%x Type:%x "
12984                                 "ID:%x Size %d %zd\n",
12985                                 phba->pcidev->device, magic_number, ftype, fid,
12986                                 fsize, fw->size);
12987                 rc = -EINVAL;
12988         } else if (offset == ADD_STATUS_FW_DOWNLOAD_HW_DISABLED) {
12989                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12990                                 "3021 Firmware downloads have been prohibited "
12991                                 "by a system configuration setting on "
12992                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
12993                                 "%zd\n",
12994                                 phba->pcidev->device, magic_number, ftype, fid,
12995                                 fsize, fw->size);
12996                 rc = -EACCES;
12997         } else {
12998                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12999                                 "3022 FW Download failed. Add Status x%x "
13000                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
13001                                 "%zd\n",
13002                                 offset, phba->pcidev->device, magic_number,
13003                                 ftype, fid, fsize, fw->size);
13004                 rc = -EIO;
13005         }
13006         return rc;
13007 }
13008
13009 /**
13010  * lpfc_write_firmware - attempt to write a firmware image to the port
13011  * @fw: pointer to firmware image returned from request_firmware.
13012  * @context: pointer to firmware image returned from request_firmware.
13013  *
13014  **/
13015 static void
13016 lpfc_write_firmware(const struct firmware *fw, void *context)
13017 {
13018         struct lpfc_hba *phba = (struct lpfc_hba *)context;
13019         char fwrev[FW_REV_STR_SIZE];
13020         struct lpfc_grp_hdr *image;
13021         struct list_head dma_buffer_list;
13022         int i, rc = 0;
13023         struct lpfc_dmabuf *dmabuf, *next;
13024         uint32_t offset = 0, temp_offset = 0;
13025         uint32_t magic_number, ftype, fid, fsize;
13026
13027         /* It can be null in no-wait mode, sanity check */
13028         if (!fw) {
13029                 rc = -ENXIO;
13030                 goto out;
13031         }
13032         image = (struct lpfc_grp_hdr *)fw->data;
13033
13034         magic_number = be32_to_cpu(image->magic_number);
13035         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
13036         fid = bf_get_be32(lpfc_grp_hdr_id, image);
13037         fsize = be32_to_cpu(image->size);
13038
13039         INIT_LIST_HEAD(&dma_buffer_list);
13040         lpfc_decode_firmware_rev(phba, fwrev, 1);
13041         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
13042                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13043                                 "3023 Updating Firmware, Current Version:%s "
13044                                 "New Version:%s\n",
13045                                 fwrev, image->revision);
13046                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
13047                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
13048                                          GFP_KERNEL);
13049                         if (!dmabuf) {
13050                                 rc = -ENOMEM;
13051                                 goto release_out;
13052                         }
13053                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
13054                                                           SLI4_PAGE_SIZE,
13055                                                           &dmabuf->phys,
13056                                                           GFP_KERNEL);
13057                         if (!dmabuf->virt) {
13058                                 kfree(dmabuf);
13059                                 rc = -ENOMEM;
13060                                 goto release_out;
13061                         }
13062                         list_add_tail(&dmabuf->list, &dma_buffer_list);
13063                 }
13064                 while (offset < fw->size) {
13065                         temp_offset = offset;
13066                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
13067                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
13068                                         memcpy(dmabuf->virt,
13069                                                fw->data + temp_offset,
13070                                                fw->size - temp_offset);
13071                                         temp_offset = fw->size;
13072                                         break;
13073                                 }
13074                                 memcpy(dmabuf->virt, fw->data + temp_offset,
13075                                        SLI4_PAGE_SIZE);
13076                                 temp_offset += SLI4_PAGE_SIZE;
13077                         }
13078                         rc = lpfc_wr_object(phba, &dma_buffer_list,
13079                                     (fw->size - offset), &offset);
13080                         if (rc) {
13081                                 rc = lpfc_log_write_firmware_error(phba, offset,
13082                                                                    magic_number,
13083                                                                    ftype,
13084                                                                    fid,
13085                                                                    fsize,
13086                                                                    fw);
13087                                 goto release_out;
13088                         }
13089                 }
13090                 rc = offset;
13091         } else
13092                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13093                                 "3029 Skipped Firmware update, Current "
13094                                 "Version:%s New Version:%s\n",
13095                                 fwrev, image->revision);
13096
13097 release_out:
13098         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
13099                 list_del(&dmabuf->list);
13100                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
13101                                   dmabuf->virt, dmabuf->phys);
13102                 kfree(dmabuf);
13103         }
13104         release_firmware(fw);
13105 out:
13106         if (rc < 0)
13107                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13108                                 "3062 Firmware update error, status %d.\n", rc);
13109         else
13110                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13111                                 "3024 Firmware update success: size %d.\n", rc);
13112 }
13113
13114 /**
13115  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
13116  * @phba: pointer to lpfc hba data structure.
13117  * @fw_upgrade: which firmware to update.
13118  *
13119  * This routine is called to perform Linux generic firmware upgrade on device
13120  * that supports such feature.
13121  **/
13122 int
13123 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
13124 {
13125         uint8_t file_name[ELX_MODEL_NAME_SIZE];
13126         int ret;
13127         const struct firmware *fw;
13128
13129         /* Only supported on SLI4 interface type 2 for now */
13130         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
13131             LPFC_SLI_INTF_IF_TYPE_2)
13132                 return -EPERM;
13133
13134         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
13135
13136         if (fw_upgrade == INT_FW_UPGRADE) {
13137                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
13138                                         file_name, &phba->pcidev->dev,
13139                                         GFP_KERNEL, (void *)phba,
13140                                         lpfc_write_firmware);
13141         } else if (fw_upgrade == RUN_FW_UPGRADE) {
13142                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
13143                 if (!ret)
13144                         lpfc_write_firmware(fw, (void *)phba);
13145         } else {
13146                 ret = -EINVAL;
13147         }
13148
13149         return ret;
13150 }
13151
13152 /**
13153  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
13154  * @pdev: pointer to PCI device
13155  * @pid: pointer to PCI device identifier
13156  *
13157  * This routine is called from the kernel's PCI subsystem to device with
13158  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
13159  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
13160  * information of the device and driver to see if the driver state that it
13161  * can support this kind of device. If the match is successful, the driver
13162  * core invokes this routine. If this routine determines it can claim the HBA,
13163  * it does all the initialization that it needs to do to handle the HBA
13164  * properly.
13165  *
13166  * Return code
13167  *      0 - driver can claim the device
13168  *      negative value - driver can not claim the device
13169  **/
13170 static int
13171 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
13172 {
13173         struct lpfc_hba   *phba;
13174         struct lpfc_vport *vport = NULL;
13175         struct Scsi_Host  *shost = NULL;
13176         int error;
13177         uint32_t cfg_mode, intr_mode;
13178
13179         /* Allocate memory for HBA structure */
13180         phba = lpfc_hba_alloc(pdev);
13181         if (!phba)
13182                 return -ENOMEM;
13183
13184         /* Perform generic PCI device enabling operation */
13185         error = lpfc_enable_pci_dev(phba);
13186         if (error)
13187                 goto out_free_phba;
13188
13189         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
13190         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
13191         if (error)
13192                 goto out_disable_pci_dev;
13193
13194         /* Set up SLI-4 specific device PCI memory space */
13195         error = lpfc_sli4_pci_mem_setup(phba);
13196         if (error) {
13197                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13198                                 "1410 Failed to set up pci memory space.\n");
13199                 goto out_disable_pci_dev;
13200         }
13201
13202         /* Set up SLI-4 Specific device driver resources */
13203         error = lpfc_sli4_driver_resource_setup(phba);
13204         if (error) {
13205                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13206                                 "1412 Failed to set up driver resource.\n");
13207                 goto out_unset_pci_mem_s4;
13208         }
13209
13210         INIT_LIST_HEAD(&phba->active_rrq_list);
13211         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
13212
13213         /* Set up common device driver resources */
13214         error = lpfc_setup_driver_resource_phase2(phba);
13215         if (error) {
13216                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13217                                 "1414 Failed to set up driver resource.\n");
13218                 goto out_unset_driver_resource_s4;
13219         }
13220
13221         /* Get the default values for Model Name and Description */
13222         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
13223
13224         /* Now, trying to enable interrupt and bring up the device */
13225         cfg_mode = phba->cfg_use_msi;
13226
13227         /* Put device to a known state before enabling interrupt */
13228         phba->pport = NULL;
13229         lpfc_stop_port(phba);
13230
13231         /* Init cpu_map array */
13232         lpfc_cpu_map_array_init(phba);
13233
13234         /* Init hba_eq_hdl array */
13235         lpfc_hba_eq_hdl_array_init(phba);
13236
13237         /* Configure and enable interrupt */
13238         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
13239         if (intr_mode == LPFC_INTR_ERROR) {
13240                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13241                                 "0426 Failed to enable interrupt.\n");
13242                 error = -ENODEV;
13243                 goto out_unset_driver_resource;
13244         }
13245         /* Default to single EQ for non-MSI-X */
13246         if (phba->intr_type != MSIX) {
13247                 phba->cfg_irq_chann = 1;
13248                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13249                         if (phba->nvmet_support)
13250                                 phba->cfg_nvmet_mrq = 1;
13251                 }
13252         }
13253         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
13254
13255         /* Create SCSI host to the physical port */
13256         error = lpfc_create_shost(phba);
13257         if (error) {
13258                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13259                                 "1415 Failed to create scsi host.\n");
13260                 goto out_disable_intr;
13261         }
13262         vport = phba->pport;
13263         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
13264
13265         /* Configure sysfs attributes */
13266         error = lpfc_alloc_sysfs_attr(vport);
13267         if (error) {
13268                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13269                                 "1416 Failed to allocate sysfs attr\n");
13270                 goto out_destroy_shost;
13271         }
13272
13273         /* Set up SLI-4 HBA */
13274         if (lpfc_sli4_hba_setup(phba)) {
13275                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13276                                 "1421 Failed to set up hba\n");
13277                 error = -ENODEV;
13278                 goto out_free_sysfs_attr;
13279         }
13280
13281         /* Log the current active interrupt mode */
13282         phba->intr_mode = intr_mode;
13283         lpfc_log_intr_mode(phba, intr_mode);
13284
13285         /* Perform post initialization setup */
13286         lpfc_post_init_setup(phba);
13287
13288         /* NVME support in FW earlier in the driver load corrects the
13289          * FC4 type making a check for nvme_support unnecessary.
13290          */
13291         if (phba->nvmet_support == 0) {
13292                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13293                         /* Create NVME binding with nvme_fc_transport. This
13294                          * ensures the vport is initialized.  If the localport
13295                          * create fails, it should not unload the driver to
13296                          * support field issues.
13297                          */
13298                         error = lpfc_nvme_create_localport(vport);
13299                         if (error) {
13300                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13301                                                 "6004 NVME registration "
13302                                                 "failed, error x%x\n",
13303                                                 error);
13304                         }
13305                 }
13306         }
13307
13308         /* check for firmware upgrade or downgrade */
13309         if (phba->cfg_request_firmware_upgrade)
13310                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
13311
13312         /* Check if there are static vports to be created. */
13313         lpfc_create_static_vport(phba);
13314
13315         /* Enable RAS FW log support */
13316         lpfc_sli4_ras_setup(phba);
13317
13318         INIT_LIST_HEAD(&phba->poll_list);
13319         timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
13320         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state, &phba->cpuhp);
13321
13322         return 0;
13323
13324 out_free_sysfs_attr:
13325         lpfc_free_sysfs_attr(vport);
13326 out_destroy_shost:
13327         lpfc_destroy_shost(phba);
13328 out_disable_intr:
13329         lpfc_sli4_disable_intr(phba);
13330 out_unset_driver_resource:
13331         lpfc_unset_driver_resource_phase2(phba);
13332 out_unset_driver_resource_s4:
13333         lpfc_sli4_driver_resource_unset(phba);
13334 out_unset_pci_mem_s4:
13335         lpfc_sli4_pci_mem_unset(phba);
13336 out_disable_pci_dev:
13337         lpfc_disable_pci_dev(phba);
13338         if (shost)
13339                 scsi_host_put(shost);
13340 out_free_phba:
13341         lpfc_hba_free(phba);
13342         return error;
13343 }
13344
13345 /**
13346  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
13347  * @pdev: pointer to PCI device
13348  *
13349  * This routine is called from the kernel's PCI subsystem to device with
13350  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
13351  * removed from PCI bus, it performs all the necessary cleanup for the HBA
13352  * device to be removed from the PCI subsystem properly.
13353  **/
13354 static void
13355 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
13356 {
13357         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13358         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
13359         struct lpfc_vport **vports;
13360         struct lpfc_hba *phba = vport->phba;
13361         int i;
13362
13363         /* Mark the device unloading flag */
13364         spin_lock_irq(&phba->hbalock);
13365         vport->load_flag |= FC_UNLOADING;
13366         spin_unlock_irq(&phba->hbalock);
13367
13368         /* Free the HBA sysfs attributes */
13369         lpfc_free_sysfs_attr(vport);
13370
13371         /* Release all the vports against this physical port */
13372         vports = lpfc_create_vport_work_array(phba);
13373         if (vports != NULL)
13374                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
13375                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
13376                                 continue;
13377                         fc_vport_terminate(vports[i]->fc_vport);
13378                 }
13379         lpfc_destroy_vport_work_array(phba, vports);
13380
13381         /* Remove FC host and then SCSI host with the physical port */
13382         fc_remove_host(shost);
13383         scsi_remove_host(shost);
13384
13385         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
13386          * localports are destroyed after to cleanup all transport memory.
13387          */
13388         lpfc_cleanup(vport);
13389         lpfc_nvmet_destroy_targetport(phba);
13390         lpfc_nvme_destroy_localport(vport);
13391
13392         /* De-allocate multi-XRI pools */
13393         if (phba->cfg_xri_rebalancing)
13394                 lpfc_destroy_multixri_pools(phba);
13395
13396         /*
13397          * Bring down the SLI Layer. This step disables all interrupts,
13398          * clears the rings, discards all mailbox commands, and resets
13399          * the HBA FCoE function.
13400          */
13401         lpfc_debugfs_terminate(vport);
13402
13403         lpfc_stop_hba_timers(phba);
13404         spin_lock_irq(&phba->port_list_lock);
13405         list_del_init(&vport->listentry);
13406         spin_unlock_irq(&phba->port_list_lock);
13407
13408         /* Perform scsi free before driver resource_unset since scsi
13409          * buffers are released to their corresponding pools here.
13410          */
13411         lpfc_io_free(phba);
13412         lpfc_free_iocb_list(phba);
13413         lpfc_sli4_hba_unset(phba);
13414
13415         lpfc_unset_driver_resource_phase2(phba);
13416         lpfc_sli4_driver_resource_unset(phba);
13417
13418         /* Unmap adapter Control and Doorbell registers */
13419         lpfc_sli4_pci_mem_unset(phba);
13420
13421         /* Release PCI resources and disable device's PCI function */
13422         scsi_host_put(shost);
13423         lpfc_disable_pci_dev(phba);
13424
13425         /* Finally, free the driver's device data structure */
13426         lpfc_hba_free(phba);
13427
13428         return;
13429 }
13430
13431 /**
13432  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
13433  * @pdev: pointer to PCI device
13434  * @msg: power management message
13435  *
13436  * This routine is called from the kernel's PCI subsystem to support system
13437  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
13438  * this method, it quiesces the device by stopping the driver's worker
13439  * thread for the device, turning off device's interrupt and DMA, and bring
13440  * the device offline. Note that as the driver implements the minimum PM
13441  * requirements to a power-aware driver's PM support for suspend/resume -- all
13442  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
13443  * method call will be treated as SUSPEND and the driver will fully
13444  * reinitialize its device during resume() method call, the driver will set
13445  * device to PCI_D3hot state in PCI config space instead of setting it
13446  * according to the @msg provided by the PM.
13447  *
13448  * Return code
13449  *      0 - driver suspended the device
13450  *      Error otherwise
13451  **/
13452 static int
13453 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
13454 {
13455         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13456         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13457
13458         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13459                         "2843 PCI device Power Management suspend.\n");
13460
13461         /* Bring down the device */
13462         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
13463         lpfc_offline(phba);
13464         kthread_stop(phba->worker_thread);
13465
13466         /* Disable interrupt from device */
13467         lpfc_sli4_disable_intr(phba);
13468         lpfc_sli4_queue_destroy(phba);
13469
13470         /* Save device state to PCI config space */
13471         pci_save_state(pdev);
13472         pci_set_power_state(pdev, PCI_D3hot);
13473
13474         return 0;
13475 }
13476
13477 /**
13478  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
13479  * @pdev: pointer to PCI device
13480  *
13481  * This routine is called from the kernel's PCI subsystem to support system
13482  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
13483  * this method, it restores the device's PCI config space state and fully
13484  * reinitializes the device and brings it online. Note that as the driver
13485  * implements the minimum PM requirements to a power-aware driver's PM for
13486  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
13487  * to the suspend() method call will be treated as SUSPEND and the driver
13488  * will fully reinitialize its device during resume() method call, the device
13489  * will be set to PCI_D0 directly in PCI config space before restoring the
13490  * state.
13491  *
13492  * Return code
13493  *      0 - driver suspended the device
13494  *      Error otherwise
13495  **/
13496 static int
13497 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
13498 {
13499         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13500         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13501         uint32_t intr_mode;
13502         int error;
13503
13504         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13505                         "0292 PCI device Power Management resume.\n");
13506
13507         /* Restore device state from PCI config space */
13508         pci_set_power_state(pdev, PCI_D0);
13509         pci_restore_state(pdev);
13510
13511         /*
13512          * As the new kernel behavior of pci_restore_state() API call clears
13513          * device saved_state flag, need to save the restored state again.
13514          */
13515         pci_save_state(pdev);
13516
13517         if (pdev->is_busmaster)
13518                 pci_set_master(pdev);
13519
13520          /* Startup the kernel thread for this host adapter. */
13521         phba->worker_thread = kthread_run(lpfc_do_work, phba,
13522                                         "lpfc_worker_%d", phba->brd_no);
13523         if (IS_ERR(phba->worker_thread)) {
13524                 error = PTR_ERR(phba->worker_thread);
13525                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13526                                 "0293 PM resume failed to start worker "
13527                                 "thread: error=x%x.\n", error);
13528                 return error;
13529         }
13530
13531         /* Configure and enable interrupt */
13532         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
13533         if (intr_mode == LPFC_INTR_ERROR) {
13534                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13535                                 "0294 PM resume Failed to enable interrupt\n");
13536                 return -EIO;
13537         } else
13538                 phba->intr_mode = intr_mode;
13539
13540         /* Restart HBA and bring it online */
13541         lpfc_sli_brdrestart(phba);
13542         lpfc_online(phba);
13543
13544         /* Log the current active interrupt mode */
13545         lpfc_log_intr_mode(phba, phba->intr_mode);
13546
13547         return 0;
13548 }
13549
13550 /**
13551  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
13552  * @phba: pointer to lpfc hba data structure.
13553  *
13554  * This routine is called to prepare the SLI4 device for PCI slot recover. It
13555  * aborts all the outstanding SCSI I/Os to the pci device.
13556  **/
13557 static void
13558 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
13559 {
13560         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13561                         "2828 PCI channel I/O abort preparing for recovery\n");
13562         /*
13563          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
13564          * and let the SCSI mid-layer to retry them to recover.
13565          */
13566         lpfc_sli_abort_fcp_rings(phba);
13567 }
13568
13569 /**
13570  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
13571  * @phba: pointer to lpfc hba data structure.
13572  *
13573  * This routine is called to prepare the SLI4 device for PCI slot reset. It
13574  * disables the device interrupt and pci device, and aborts the internal FCP
13575  * pending I/Os.
13576  **/
13577 static void
13578 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
13579 {
13580         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13581                         "2826 PCI channel disable preparing for reset\n");
13582
13583         /* Block any management I/Os to the device */
13584         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
13585
13586         /* Block all SCSI devices' I/Os on the host */
13587         lpfc_scsi_dev_block(phba);
13588
13589         /* Flush all driver's outstanding I/Os as we are to reset */
13590         lpfc_sli_flush_io_rings(phba);
13591
13592         /* stop all timers */
13593         lpfc_stop_hba_timers(phba);
13594
13595         /* Disable interrupt and pci device */
13596         lpfc_sli4_disable_intr(phba);
13597         lpfc_sli4_queue_destroy(phba);
13598         pci_disable_device(phba->pcidev);
13599 }
13600
13601 /**
13602  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
13603  * @phba: pointer to lpfc hba data structure.
13604  *
13605  * This routine is called to prepare the SLI4 device for PCI slot permanently
13606  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
13607  * pending I/Os.
13608  **/
13609 static void
13610 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
13611 {
13612         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13613                         "2827 PCI channel permanent disable for failure\n");
13614
13615         /* Block all SCSI devices' I/Os on the host */
13616         lpfc_scsi_dev_block(phba);
13617
13618         /* stop all timers */
13619         lpfc_stop_hba_timers(phba);
13620
13621         /* Clean up all driver's outstanding I/Os */
13622         lpfc_sli_flush_io_rings(phba);
13623 }
13624
13625 /**
13626  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
13627  * @pdev: pointer to PCI device.
13628  * @state: the current PCI connection state.
13629  *
13630  * This routine is called from the PCI subsystem for error handling to device
13631  * with SLI-4 interface spec. This function is called by the PCI subsystem
13632  * after a PCI bus error affecting this device has been detected. When this
13633  * function is invoked, it will need to stop all the I/Os and interrupt(s)
13634  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
13635  * for the PCI subsystem to perform proper recovery as desired.
13636  *
13637  * Return codes
13638  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
13639  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13640  **/
13641 static pci_ers_result_t
13642 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
13643 {
13644         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13645         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13646
13647         switch (state) {
13648         case pci_channel_io_normal:
13649                 /* Non-fatal error, prepare for recovery */
13650                 lpfc_sli4_prep_dev_for_recover(phba);
13651                 return PCI_ERS_RESULT_CAN_RECOVER;
13652         case pci_channel_io_frozen:
13653                 /* Fatal error, prepare for slot reset */
13654                 lpfc_sli4_prep_dev_for_reset(phba);
13655                 return PCI_ERS_RESULT_NEED_RESET;
13656         case pci_channel_io_perm_failure:
13657                 /* Permanent failure, prepare for device down */
13658                 lpfc_sli4_prep_dev_for_perm_failure(phba);
13659                 return PCI_ERS_RESULT_DISCONNECT;
13660         default:
13661                 /* Unknown state, prepare and request slot reset */
13662                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13663                                 "2825 Unknown PCI error state: x%x\n", state);
13664                 lpfc_sli4_prep_dev_for_reset(phba);
13665                 return PCI_ERS_RESULT_NEED_RESET;
13666         }
13667 }
13668
13669 /**
13670  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
13671  * @pdev: pointer to PCI device.
13672  *
13673  * This routine is called from the PCI subsystem for error handling to device
13674  * with SLI-4 interface spec. It is called after PCI bus has been reset to
13675  * restart the PCI card from scratch, as if from a cold-boot. During the
13676  * PCI subsystem error recovery, after the driver returns
13677  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
13678  * recovery and then call this routine before calling the .resume method to
13679  * recover the device. This function will initialize the HBA device, enable
13680  * the interrupt, but it will just put the HBA to offline state without
13681  * passing any I/O traffic.
13682  *
13683  * Return codes
13684  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
13685  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13686  */
13687 static pci_ers_result_t
13688 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
13689 {
13690         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13691         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13692         struct lpfc_sli *psli = &phba->sli;
13693         uint32_t intr_mode;
13694
13695         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
13696         if (pci_enable_device_mem(pdev)) {
13697                 printk(KERN_ERR "lpfc: Cannot re-enable "
13698                         "PCI device after reset.\n");
13699                 return PCI_ERS_RESULT_DISCONNECT;
13700         }
13701
13702         pci_restore_state(pdev);
13703
13704         /*
13705          * As the new kernel behavior of pci_restore_state() API call clears
13706          * device saved_state flag, need to save the restored state again.
13707          */
13708         pci_save_state(pdev);
13709
13710         if (pdev->is_busmaster)
13711                 pci_set_master(pdev);
13712
13713         spin_lock_irq(&phba->hbalock);
13714         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
13715         spin_unlock_irq(&phba->hbalock);
13716
13717         /* Configure and enable interrupt */
13718         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
13719         if (intr_mode == LPFC_INTR_ERROR) {
13720                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13721                                 "2824 Cannot re-enable interrupt after "
13722                                 "slot reset.\n");
13723                 return PCI_ERS_RESULT_DISCONNECT;
13724         } else
13725                 phba->intr_mode = intr_mode;
13726
13727         /* Log the current active interrupt mode */
13728         lpfc_log_intr_mode(phba, phba->intr_mode);
13729
13730         return PCI_ERS_RESULT_RECOVERED;
13731 }
13732
13733 /**
13734  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
13735  * @pdev: pointer to PCI device
13736  *
13737  * This routine is called from the PCI subsystem for error handling to device
13738  * with SLI-4 interface spec. It is called when kernel error recovery tells
13739  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
13740  * error recovery. After this call, traffic can start to flow from this device
13741  * again.
13742  **/
13743 static void
13744 lpfc_io_resume_s4(struct pci_dev *pdev)
13745 {
13746         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13747         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13748
13749         /*
13750          * In case of slot reset, as function reset is performed through
13751          * mailbox command which needs DMA to be enabled, this operation
13752          * has to be moved to the io resume phase. Taking device offline
13753          * will perform the necessary cleanup.
13754          */
13755         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
13756                 /* Perform device reset */
13757                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
13758                 lpfc_offline(phba);
13759                 lpfc_sli_brdrestart(phba);
13760                 /* Bring the device back online */
13761                 lpfc_online(phba);
13762         }
13763 }
13764
13765 /**
13766  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
13767  * @pdev: pointer to PCI device
13768  * @pid: pointer to PCI device identifier
13769  *
13770  * This routine is to be registered to the kernel's PCI subsystem. When an
13771  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
13772  * at PCI device-specific information of the device and driver to see if the
13773  * driver state that it can support this kind of device. If the match is
13774  * successful, the driver core invokes this routine. This routine dispatches
13775  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
13776  * do all the initialization that it needs to do to handle the HBA device
13777  * properly.
13778  *
13779  * Return code
13780  *      0 - driver can claim the device
13781  *      negative value - driver can not claim the device
13782  **/
13783 static int
13784 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
13785 {
13786         int rc;
13787         struct lpfc_sli_intf intf;
13788
13789         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
13790                 return -ENODEV;
13791
13792         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
13793             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
13794                 rc = lpfc_pci_probe_one_s4(pdev, pid);
13795         else
13796                 rc = lpfc_pci_probe_one_s3(pdev, pid);
13797
13798         return rc;
13799 }
13800
13801 /**
13802  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
13803  * @pdev: pointer to PCI device
13804  *
13805  * This routine is to be registered to the kernel's PCI subsystem. When an
13806  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
13807  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
13808  * remove routine, which will perform all the necessary cleanup for the
13809  * device to be removed from the PCI subsystem properly.
13810  **/
13811 static void
13812 lpfc_pci_remove_one(struct pci_dev *pdev)
13813 {
13814         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13815         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13816
13817         switch (phba->pci_dev_grp) {
13818         case LPFC_PCI_DEV_LP:
13819                 lpfc_pci_remove_one_s3(pdev);
13820                 break;
13821         case LPFC_PCI_DEV_OC:
13822                 lpfc_pci_remove_one_s4(pdev);
13823                 break;
13824         default:
13825                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13826                                 "1424 Invalid PCI device group: 0x%x\n",
13827                                 phba->pci_dev_grp);
13828                 break;
13829         }
13830         return;
13831 }
13832
13833 /**
13834  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
13835  * @pdev: pointer to PCI device
13836  * @msg: power management message
13837  *
13838  * This routine is to be registered to the kernel's PCI subsystem to support
13839  * system Power Management (PM). When PM invokes this method, it dispatches
13840  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
13841  * suspend the device.
13842  *
13843  * Return code
13844  *      0 - driver suspended the device
13845  *      Error otherwise
13846  **/
13847 static int
13848 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
13849 {
13850         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13851         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13852         int rc = -ENODEV;
13853
13854         switch (phba->pci_dev_grp) {
13855         case LPFC_PCI_DEV_LP:
13856                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
13857                 break;
13858         case LPFC_PCI_DEV_OC:
13859                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
13860                 break;
13861         default:
13862                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13863                                 "1425 Invalid PCI device group: 0x%x\n",
13864                                 phba->pci_dev_grp);
13865                 break;
13866         }
13867         return rc;
13868 }
13869
13870 /**
13871  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
13872  * @pdev: pointer to PCI device
13873  *
13874  * This routine is to be registered to the kernel's PCI subsystem to support
13875  * system Power Management (PM). When PM invokes this method, it dispatches
13876  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
13877  * resume the device.
13878  *
13879  * Return code
13880  *      0 - driver suspended the device
13881  *      Error otherwise
13882  **/
13883 static int
13884 lpfc_pci_resume_one(struct pci_dev *pdev)
13885 {
13886         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13887         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13888         int rc = -ENODEV;
13889
13890         switch (phba->pci_dev_grp) {
13891         case LPFC_PCI_DEV_LP:
13892                 rc = lpfc_pci_resume_one_s3(pdev);
13893                 break;
13894         case LPFC_PCI_DEV_OC:
13895                 rc = lpfc_pci_resume_one_s4(pdev);
13896                 break;
13897         default:
13898                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13899                                 "1426 Invalid PCI device group: 0x%x\n",
13900                                 phba->pci_dev_grp);
13901                 break;
13902         }
13903         return rc;
13904 }
13905
13906 /**
13907  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
13908  * @pdev: pointer to PCI device.
13909  * @state: the current PCI connection state.
13910  *
13911  * This routine is registered to the PCI subsystem for error handling. This
13912  * function is called by the PCI subsystem after a PCI bus error affecting
13913  * this device has been detected. When this routine is invoked, it dispatches
13914  * the action to the proper SLI-3 or SLI-4 device error detected handling
13915  * routine, which will perform the proper error detected operation.
13916  *
13917  * Return codes
13918  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
13919  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13920  **/
13921 static pci_ers_result_t
13922 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
13923 {
13924         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13925         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13926         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
13927
13928         switch (phba->pci_dev_grp) {
13929         case LPFC_PCI_DEV_LP:
13930                 rc = lpfc_io_error_detected_s3(pdev, state);
13931                 break;
13932         case LPFC_PCI_DEV_OC:
13933                 rc = lpfc_io_error_detected_s4(pdev, state);
13934                 break;
13935         default:
13936                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13937                                 "1427 Invalid PCI device group: 0x%x\n",
13938                                 phba->pci_dev_grp);
13939                 break;
13940         }
13941         return rc;
13942 }
13943
13944 /**
13945  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
13946  * @pdev: pointer to PCI device.
13947  *
13948  * This routine is registered to the PCI subsystem for error handling. This
13949  * function is called after PCI bus has been reset to restart the PCI card
13950  * from scratch, as if from a cold-boot. When this routine is invoked, it
13951  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
13952  * routine, which will perform the proper device reset.
13953  *
13954  * Return codes
13955  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
13956  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13957  **/
13958 static pci_ers_result_t
13959 lpfc_io_slot_reset(struct pci_dev *pdev)
13960 {
13961         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13962         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13963         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
13964
13965         switch (phba->pci_dev_grp) {
13966         case LPFC_PCI_DEV_LP:
13967                 rc = lpfc_io_slot_reset_s3(pdev);
13968                 break;
13969         case LPFC_PCI_DEV_OC:
13970                 rc = lpfc_io_slot_reset_s4(pdev);
13971                 break;
13972         default:
13973                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13974                                 "1428 Invalid PCI device group: 0x%x\n",
13975                                 phba->pci_dev_grp);
13976                 break;
13977         }
13978         return rc;
13979 }
13980
13981 /**
13982  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
13983  * @pdev: pointer to PCI device
13984  *
13985  * This routine is registered to the PCI subsystem for error handling. It
13986  * is called when kernel error recovery tells the lpfc driver that it is
13987  * OK to resume normal PCI operation after PCI bus error recovery. When
13988  * this routine is invoked, it dispatches the action to the proper SLI-3
13989  * or SLI-4 device io_resume routine, which will resume the device operation.
13990  **/
13991 static void
13992 lpfc_io_resume(struct pci_dev *pdev)
13993 {
13994         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13995         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13996
13997         switch (phba->pci_dev_grp) {
13998         case LPFC_PCI_DEV_LP:
13999                 lpfc_io_resume_s3(pdev);
14000                 break;
14001         case LPFC_PCI_DEV_OC:
14002                 lpfc_io_resume_s4(pdev);
14003                 break;
14004         default:
14005                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14006                                 "1429 Invalid PCI device group: 0x%x\n",
14007                                 phba->pci_dev_grp);
14008                 break;
14009         }
14010         return;
14011 }
14012
14013 /**
14014  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
14015  * @phba: pointer to lpfc hba data structure.
14016  *
14017  * This routine checks to see if OAS is supported for this adapter. If
14018  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
14019  * the enable oas flag is cleared and the pool created for OAS device data
14020  * is destroyed.
14021  *
14022  **/
14023 static void
14024 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
14025 {
14026
14027         if (!phba->cfg_EnableXLane)
14028                 return;
14029
14030         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
14031                 phba->cfg_fof = 1;
14032         } else {
14033                 phba->cfg_fof = 0;
14034                 mempool_destroy(phba->device_data_mem_pool);
14035                 phba->device_data_mem_pool = NULL;
14036         }
14037
14038         return;
14039 }
14040
14041 /**
14042  * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
14043  * @phba: pointer to lpfc hba data structure.
14044  *
14045  * This routine checks to see if RAS is supported by the adapter. Check the
14046  * function through which RAS support enablement is to be done.
14047  **/
14048 void
14049 lpfc_sli4_ras_init(struct lpfc_hba *phba)
14050 {
14051         switch (phba->pcidev->device) {
14052         case PCI_DEVICE_ID_LANCER_G6_FC:
14053         case PCI_DEVICE_ID_LANCER_G7_FC:
14054                 phba->ras_fwlog.ras_hwsupport = true;
14055                 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
14056                     phba->cfg_ras_fwlog_buffsize)
14057                         phba->ras_fwlog.ras_enabled = true;
14058                 else
14059                         phba->ras_fwlog.ras_enabled = false;
14060                 break;
14061         default:
14062                 phba->ras_fwlog.ras_hwsupport = false;
14063         }
14064 }
14065
14066
14067 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
14068
14069 static const struct pci_error_handlers lpfc_err_handler = {
14070         .error_detected = lpfc_io_error_detected,
14071         .slot_reset = lpfc_io_slot_reset,
14072         .resume = lpfc_io_resume,
14073 };
14074
14075 static struct pci_driver lpfc_driver = {
14076         .name           = LPFC_DRIVER_NAME,
14077         .id_table       = lpfc_id_table,
14078         .probe          = lpfc_pci_probe_one,
14079         .remove         = lpfc_pci_remove_one,
14080         .shutdown       = lpfc_pci_remove_one,
14081         .suspend        = lpfc_pci_suspend_one,
14082         .resume         = lpfc_pci_resume_one,
14083         .err_handler    = &lpfc_err_handler,
14084 };
14085
14086 static const struct file_operations lpfc_mgmt_fop = {
14087         .owner = THIS_MODULE,
14088 };
14089
14090 static struct miscdevice lpfc_mgmt_dev = {
14091         .minor = MISC_DYNAMIC_MINOR,
14092         .name = "lpfcmgmt",
14093         .fops = &lpfc_mgmt_fop,
14094 };
14095
14096 /**
14097  * lpfc_init - lpfc module initialization routine
14098  *
14099  * This routine is to be invoked when the lpfc module is loaded into the
14100  * kernel. The special kernel macro module_init() is used to indicate the
14101  * role of this routine to the kernel as lpfc module entry point.
14102  *
14103  * Return codes
14104  *   0 - successful
14105  *   -ENOMEM - FC attach transport failed
14106  *   all others - failed
14107  */
14108 static int __init
14109 lpfc_init(void)
14110 {
14111         int error = 0;
14112
14113         pr_info(LPFC_MODULE_DESC "\n");
14114         pr_info(LPFC_COPYRIGHT "\n");
14115
14116         error = misc_register(&lpfc_mgmt_dev);
14117         if (error)
14118                 printk(KERN_ERR "Could not register lpfcmgmt device, "
14119                         "misc_register returned with status %d", error);
14120
14121         error = -ENOMEM;
14122         lpfc_transport_functions.vport_create = lpfc_vport_create;
14123         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
14124         lpfc_transport_template =
14125                                 fc_attach_transport(&lpfc_transport_functions);
14126         if (lpfc_transport_template == NULL)
14127                 goto unregister;
14128         lpfc_vport_transport_template =
14129                 fc_attach_transport(&lpfc_vport_transport_functions);
14130         if (lpfc_vport_transport_template == NULL) {
14131                 fc_release_transport(lpfc_transport_template);
14132                 goto unregister;
14133         }
14134         lpfc_nvme_cmd_template();
14135         lpfc_nvmet_cmd_template();
14136
14137         /* Initialize in case vector mapping is needed */
14138         lpfc_present_cpu = num_present_cpus();
14139
14140         error = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
14141                                         "lpfc/sli4:online",
14142                                         lpfc_cpu_online, lpfc_cpu_offline);
14143         if (error < 0)
14144                 goto cpuhp_failure;
14145         lpfc_cpuhp_state = error;
14146
14147         error = pci_register_driver(&lpfc_driver);
14148         if (error)
14149                 goto unwind;
14150
14151         return error;
14152
14153 unwind:
14154         cpuhp_remove_multi_state(lpfc_cpuhp_state);
14155 cpuhp_failure:
14156         fc_release_transport(lpfc_transport_template);
14157         fc_release_transport(lpfc_vport_transport_template);
14158 unregister:
14159         misc_deregister(&lpfc_mgmt_dev);
14160
14161         return error;
14162 }
14163
14164 void lpfc_dmp_dbg(struct lpfc_hba *phba)
14165 {
14166         unsigned int start_idx;
14167         unsigned int dbg_cnt;
14168         unsigned int temp_idx;
14169         int i;
14170         int j = 0;
14171         unsigned long rem_nsec;
14172
14173         if (phba->cfg_log_verbose)
14174                 return;
14175
14176         if (atomic_cmpxchg(&phba->dbg_log_dmping, 0, 1) != 0)
14177                 return;
14178
14179         start_idx = (unsigned int)atomic_read(&phba->dbg_log_idx) % DBG_LOG_SZ;
14180         dbg_cnt = (unsigned int)atomic_read(&phba->dbg_log_cnt);
14181         temp_idx = start_idx;
14182         if (dbg_cnt >= DBG_LOG_SZ) {
14183                 dbg_cnt = DBG_LOG_SZ;
14184                 temp_idx -= 1;
14185         } else {
14186                 if ((start_idx + dbg_cnt) > (DBG_LOG_SZ - 1)) {
14187                         temp_idx = (start_idx + dbg_cnt) % DBG_LOG_SZ;
14188                 } else {
14189                         if (start_idx < dbg_cnt)
14190                                 start_idx = DBG_LOG_SZ - (dbg_cnt - start_idx);
14191                         else
14192                                 start_idx -= dbg_cnt;
14193                 }
14194         }
14195         dev_info(&phba->pcidev->dev, "start %d end %d cnt %d\n",
14196                  start_idx, temp_idx, dbg_cnt);
14197
14198         for (i = 0; i < dbg_cnt; i++) {
14199                 if ((start_idx + i) < DBG_LOG_SZ)
14200                         temp_idx = (start_idx + i) % DBG_LOG_SZ;
14201                 else
14202                         temp_idx = j++;
14203                 rem_nsec = do_div(phba->dbg_log[temp_idx].t_ns, NSEC_PER_SEC);
14204                 dev_info(&phba->pcidev->dev, "%d: [%5lu.%06lu] %s",
14205                          temp_idx,
14206                          (unsigned long)phba->dbg_log[temp_idx].t_ns,
14207                          rem_nsec / 1000,
14208                          phba->dbg_log[temp_idx].log);
14209         }
14210         atomic_set(&phba->dbg_log_cnt, 0);
14211         atomic_set(&phba->dbg_log_dmping, 0);
14212 }
14213
14214 __printf(2, 3)
14215 void lpfc_dbg_print(struct lpfc_hba *phba, const char *fmt, ...)
14216 {
14217         unsigned int idx;
14218         va_list args;
14219         int dbg_dmping = atomic_read(&phba->dbg_log_dmping);
14220         struct va_format vaf;
14221
14222
14223         va_start(args, fmt);
14224         if (unlikely(dbg_dmping)) {
14225                 vaf.fmt = fmt;
14226                 vaf.va = &args;
14227                 dev_info(&phba->pcidev->dev, "%pV", &vaf);
14228                 va_end(args);
14229                 return;
14230         }
14231         idx = (unsigned int)atomic_fetch_add(1, &phba->dbg_log_idx) %
14232                 DBG_LOG_SZ;
14233
14234         atomic_inc(&phba->dbg_log_cnt);
14235
14236         vscnprintf(phba->dbg_log[idx].log,
14237                    sizeof(phba->dbg_log[idx].log), fmt, args);
14238         va_end(args);
14239
14240         phba->dbg_log[idx].t_ns = local_clock();
14241 }
14242
14243 /**
14244  * lpfc_exit - lpfc module removal routine
14245  *
14246  * This routine is invoked when the lpfc module is removed from the kernel.
14247  * The special kernel macro module_exit() is used to indicate the role of
14248  * this routine to the kernel as lpfc module exit point.
14249  */
14250 static void __exit
14251 lpfc_exit(void)
14252 {
14253         misc_deregister(&lpfc_mgmt_dev);
14254         pci_unregister_driver(&lpfc_driver);
14255         cpuhp_remove_multi_state(lpfc_cpuhp_state);
14256         fc_release_transport(lpfc_transport_template);
14257         fc_release_transport(lpfc_vport_transport_template);
14258         idr_destroy(&lpfc_hba_index);
14259 }
14260
14261 module_init(lpfc_init);
14262 module_exit(lpfc_exit);
14263 MODULE_LICENSE("GPL");
14264 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
14265 MODULE_AUTHOR("Broadcom");
14266 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);