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) 2017-2018 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/bitops.h>
  41
  42 #include <scsi/scsi.h>
  43 #include <scsi/scsi_device.h>
  44 #include <scsi/scsi_host.h>
  45 #include <scsi/scsi_transport_fc.h>
  46 #include <scsi/scsi_tcq.h>
  47 #include <scsi/fc/fc_fs.h>
  48
  49 #include <linux/nvme-fc-driver.h>
  50
  51 #include "lpfc_hw4.h"
  52 #include "lpfc_hw.h"
  53 #include "lpfc_sli.h"
  54 #include "lpfc_sli4.h"
  55 #include "lpfc_nl.h"
  56 #include "lpfc_disc.h"
  57 #include "lpfc.h"
  58 #include "lpfc_scsi.h"
  59 #include "lpfc_nvme.h"
  60 #include "lpfc_nvmet.h"
  61 #include "lpfc_logmsg.h"
  62 #include "lpfc_crtn.h"
  63 #include "lpfc_vport.h"
  64 #include "lpfc_version.h"
  65 #include "lpfc_ids.h"
  66
  67 char *_dump_buf_data;
  68 unsigned long _dump_buf_data_order;
  69 char *_dump_buf_dif;
  70 unsigned long _dump_buf_dif_order;
  71 spinlock_t _dump_buf_lock;
  72
  73 /* Used when mapping IRQ vectors in a driver centric manner */
  74 uint16_t *lpfc_used_cpu;
  75 uint32_t lpfc_present_cpu;
  76
  77 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  78 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  79 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  80 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  81 static int lpfc_setup_endian_order(struct lpfc_hba *);
  82 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  83 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  84 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  85 static void lpfc_init_sgl_list(struct lpfc_hba *);
  86 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  87 static void lpfc_free_active_sgl(struct lpfc_hba *);
  88 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  89 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  90 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  91 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  92 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  93 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  94 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  95 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  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_MBOX,
 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         phba->sli3_options = 0x0;
 171
 172         /* Setup and issue mailbox READ REV command */
 173         lpfc_read_rev(phba, pmb);
 174         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 175         if (rc != MBX_SUCCESS) {
 176                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 177                                 "0439 Adapter failed to init, mbxCmd x%x "
 178                                 "READ_REV, mbxStatus x%x\n",
 179                                 mb->mbxCommand, mb->mbxStatus);
 180                 mempool_free( pmb, phba->mbox_mem_pool);
 181                 return -ERESTART;
 182         }
 183
 184
 185         /*
 186          * The value of rr must be 1 since the driver set the cv field to 1.
 187          * This setting requires the FW to set all revision fields.
 188          */
 189         if (mb->un.varRdRev.rr == 0) {
 190                 vp->rev.rBit = 0;
 191                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 192                                 "0440 Adapter failed to init, READ_REV has "
 193                                 "missing revision information.\n");
 194                 mempool_free(pmb, phba->mbox_mem_pool);
 195                 return -ERESTART;
 196         }
 197
 198         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 199                 mempool_free(pmb, phba->mbox_mem_pool);
 200                 return -EINVAL;
 201         }
 202
 203         /* Save information as VPD data */
 204         vp->rev.rBit = 1;
 205         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 206         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 207         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 208         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 209         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 210         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 211         vp->rev.smRev = mb->un.varRdRev.smRev;
 212         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 213         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 214         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 215         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 216         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 217         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 218         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 219         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 220
 221         /* If the sli feature level is less then 9, we must
 222          * tear down all RPIs and VPIs on link down if NPIV
 223          * is enabled.
 224          */
 225         if (vp->rev.feaLevelHigh < 9)
 226                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 227
 228         if (lpfc_is_LC_HBA(phba->pcidev->device))
 229                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 230                                                 sizeof (phba->RandomData));
 231
 232         /* Get adapter VPD information */
 233         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 234         if (!lpfc_vpd_data)
 235                 goto out_free_mbox;
 236         do {
 237                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 238                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 239
 240                 if (rc != MBX_SUCCESS) {
 241                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 242                                         "0441 VPD not present on adapter, "
 243                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 244                                         mb->mbxCommand, mb->mbxStatus);
 245                         mb->un.varDmp.word_cnt = 0;
 246                 }
 247                 /* dump mem may return a zero when finished or we got a
 248                  * mailbox error, either way we are done.
 249                  */
 250                 if (mb->un.varDmp.word_cnt == 0)
 251                         break;
 252                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 253                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 254                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 255                                       lpfc_vpd_data + offset,
 256                                       mb->un.varDmp.word_cnt);
 257                 offset += mb->un.varDmp.word_cnt;
 258         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 259         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 260
 261         kfree(lpfc_vpd_data);
 262 out_free_mbox:
 263         mempool_free(pmb, phba->mbox_mem_pool);
 264         return 0;
 265 }
 266
 267 /**
 268  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 269  * @phba: pointer to lpfc hba data structure.
 270  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 271  *
 272  * This is the completion handler for driver's configuring asynchronous event
 273  * mailbox command to the device. If the mailbox command returns successfully,
 274  * it will set internal async event support flag to 1; otherwise, it will
 275  * set internal async event support flag to 0.
 276  **/
 277 static void
 278 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 279 {
 280         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 281                 phba->temp_sensor_support = 1;
 282         else
 283                 phba->temp_sensor_support = 0;
 284         mempool_free(pmboxq, phba->mbox_mem_pool);
 285         return;
 286 }
 287
 288 /**
 289  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 290  * @phba: pointer to lpfc hba data structure.
 291  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 292  *
 293  * This is the completion handler for dump mailbox command for getting
 294  * wake up parameters. When this command complete, the response contain
 295  * Option rom version of the HBA. This function translate the version number
 296  * into a human readable string and store it in OptionROMVersion.
 297  **/
 298 static void
 299 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 300 {
 301         struct prog_id *prg;
 302         uint32_t prog_id_word;
 303         char dist = ' ';
 304         /* character array used for decoding dist type. */
 305         char dist_char[] = "nabx";
 306
 307         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 308                 mempool_free(pmboxq, phba->mbox_mem_pool);
 309                 return;
 310         }
 311
 312         prg = (struct prog_id *) &prog_id_word;
 313
 314         /* word 7 contain option rom version */
 315         prog_id_word = pmboxq->u.mb.un.varWords[7];
 316
 317         /* Decode the Option rom version word to a readable string */
 318         if (prg->dist < 4)
 319                 dist = dist_char[prg->dist];
 320
 321         if ((prg->dist == 3) && (prg->num == 0))
 322                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 323                         prg->ver, prg->rev, prg->lev);
 324         else
 325                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 326                         prg->ver, prg->rev, prg->lev,
 327                         dist, prg->num);
 328         mempool_free(pmboxq, phba->mbox_mem_pool);
 329         return;
 330 }
 331
 332 /**
 333  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 334  *      cfg_soft_wwnn, cfg_soft_wwpn
 335  * @vport: pointer to lpfc vport data structure.
 336  *
 337  *
 338  * Return codes
 339  *   None.
 340  **/
 341 void
 342 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 343 {
 344         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 345         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 346
 347         /* If the soft name exists then update it using the service params */
 348         if (vport->phba->cfg_soft_wwnn)
 349                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 350                            vport->fc_sparam.nodeName.u.wwn);
 351         if (vport->phba->cfg_soft_wwpn)
 352                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 353                            vport->fc_sparam.portName.u.wwn);
 354
 355         /*
 356          * If the name is empty or there exists a soft name
 357          * then copy the service params name, otherwise use the fc name
 358          */
 359         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 360                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 361                         sizeof(struct lpfc_name));
 362         else
 363                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 364                         sizeof(struct lpfc_name));
 365
 366         /*
 367          * If the port name has changed, then set the Param changes flag
 368          * to unreg the login
 369          */
 370         if (vport->fc_portname.u.wwn[0] != 0 &&
 371                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 372                         sizeof(struct lpfc_name)))
 373                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 374
 375         if (vport->fc_portname.u.wwn[0] == 0 ||
 376             vport->phba->cfg_soft_wwpn ||
 377             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 378             vport->vport_flag & FAWWPN_SET) {
 379                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 380                         sizeof(struct lpfc_name));
 381                 vport->vport_flag &= ~FAWWPN_SET;
 382                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 383                         vport->vport_flag |= FAWWPN_SET;
 384         }
 385         else
 386                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 387                         sizeof(struct lpfc_name));
 388 }
 389
 390 /**
 391  * lpfc_config_port_post - Perform lpfc initialization after config port
 392  * @phba: pointer to lpfc hba data structure.
 393  *
 394  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 395  * command call. It performs all internal resource and state setups on the
 396  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 397  * ELS ring timers, etc.
 398  *
 399  * Return codes
 400  *   0 - success.
 401  *   Any other value - error.
 402  **/
 403 int
 404 lpfc_config_port_post(struct lpfc_hba *phba)
 405 {
 406         struct lpfc_vport *vport = phba->pport;
 407         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 408         LPFC_MBOXQ_t *pmb;
 409         MAILBOX_t *mb;
 410         struct lpfc_dmabuf *mp;
 411         struct lpfc_sli *psli = &phba->sli;
 412         uint32_t status, timeout;
 413         int i, j;
 414         int rc;
 415
 416         spin_lock_irq(&phba->hbalock);
 417         /*
 418          * If the Config port completed correctly the HBA is not
 419          * over heated any more.
 420          */
 421         if (phba->over_temp_state == HBA_OVER_TEMP)
 422                 phba->over_temp_state = HBA_NORMAL_TEMP;
 423         spin_unlock_irq(&phba->hbalock);
 424
 425         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 426         if (!pmb) {
 427                 phba->link_state = LPFC_HBA_ERROR;
 428                 return -ENOMEM;
 429         }
 430         mb = &pmb->u.mb;
 431
 432         /* Get login parameters for NID.  */
 433         rc = lpfc_read_sparam(phba, pmb, 0);
 434         if (rc) {
 435                 mempool_free(pmb, phba->mbox_mem_pool);
 436                 return -ENOMEM;
 437         }
 438
 439         pmb->vport = vport;
 440         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 441                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 442                                 "0448 Adapter failed init, mbxCmd x%x "
 443                                 "READ_SPARM mbxStatus x%x\n",
 444                                 mb->mbxCommand, mb->mbxStatus);
 445                 phba->link_state = LPFC_HBA_ERROR;
 446                 mp = (struct lpfc_dmabuf *) pmb->context1;
 447                 mempool_free(pmb, phba->mbox_mem_pool);
 448                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 449                 kfree(mp);
 450                 return -EIO;
 451         }
 452
 453         mp = (struct lpfc_dmabuf *) pmb->context1;
 454
 455         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 456         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 457         kfree(mp);
 458         pmb->context1 = NULL;
 459         lpfc_update_vport_wwn(vport);
 460
 461         /* Update the fc_host data structures with new wwn. */
 462         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 463         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 464         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 465
 466         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 467         /* This should be consolidated into parse_vpd ? - mr */
 468         if (phba->SerialNumber[0] == 0) {
 469                 uint8_t *outptr;
 470
 471                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 472                 for (i = 0; i < 12; i++) {
 473                         status = *outptr++;
 474                         j = ((status & 0xf0) >> 4);
 475                         if (j <= 9)
 476                                 phba->SerialNumber[i] =
 477                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 478                         else
 479                                 phba->SerialNumber[i] =
 480                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 481                         i++;
 482                         j = (status & 0xf);
 483                         if (j <= 9)
 484                                 phba->SerialNumber[i] =
 485                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 486                         else
 487                                 phba->SerialNumber[i] =
 488                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 489                 }
 490         }
 491
 492         lpfc_read_config(phba, pmb);
 493         pmb->vport = vport;
 494         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 495                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 496                                 "0453 Adapter failed to init, mbxCmd x%x "
 497                                 "READ_CONFIG, mbxStatus x%x\n",
 498                                 mb->mbxCommand, mb->mbxStatus);
 499                 phba->link_state = LPFC_HBA_ERROR;
 500                 mempool_free( pmb, phba->mbox_mem_pool);
 501                 return -EIO;
 502         }
 503
 504         /* Check if the port is disabled */
 505         lpfc_sli_read_link_ste(phba);
 506
 507         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 508         i = (mb->un.varRdConfig.max_xri + 1);
 509         if (phba->cfg_hba_queue_depth > i) {
 510                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 511                                 "3359 HBA queue depth changed from %d to %d\n",
 512                                 phba->cfg_hba_queue_depth, i);
 513                 phba->cfg_hba_queue_depth = i;
 514         }
 515
 516         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 517         i = (mb->un.varRdConfig.max_xri >> 3);
 518         if (phba->pport->cfg_lun_queue_depth > i) {
 519                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 520                                 "3360 LUN queue depth changed from %d to %d\n",
 521                                 phba->pport->cfg_lun_queue_depth, i);
 522                 phba->pport->cfg_lun_queue_depth = i;
 523         }
 524
 525         phba->lmt = mb->un.varRdConfig.lmt;
 526
 527         /* Get the default values for Model Name and Description */
 528         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 529
 530         phba->link_state = LPFC_LINK_DOWN;
 531
 532         /* Only process IOCBs on ELS ring till hba_state is READY */
 533         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 534                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 535         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 536                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 537
 538         /* Post receive buffers for desired rings */
 539         if (phba->sli_rev != 3)
 540                 lpfc_post_rcv_buf(phba);
 541
 542         /*
 543          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 544          */
 545         if (phba->intr_type == MSIX) {
 546                 rc = lpfc_config_msi(phba, pmb);
 547                 if (rc) {
 548                         mempool_free(pmb, phba->mbox_mem_pool);
 549                         return -EIO;
 550                 }
 551                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 552                 if (rc != MBX_SUCCESS) {
 553                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 554                                         "0352 Config MSI mailbox command "
 555                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 556                                         pmb->u.mb.mbxCommand,
 557                                         pmb->u.mb.mbxStatus);
 558                         mempool_free(pmb, phba->mbox_mem_pool);
 559                         return -EIO;
 560                 }
 561         }
 562
 563         spin_lock_irq(&phba->hbalock);
 564         /* Initialize ERATT handling flag */
 565         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 566
 567         /* Enable appropriate host interrupts */
 568         if (lpfc_readl(phba->HCregaddr, &status)) {
 569                 spin_unlock_irq(&phba->hbalock);
 570                 return -EIO;
 571         }
 572         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 573         if (psli->num_rings > 0)
 574                 status |= HC_R0INT_ENA;
 575         if (psli->num_rings > 1)
 576                 status |= HC_R1INT_ENA;
 577         if (psli->num_rings > 2)
 578                 status |= HC_R2INT_ENA;
 579         if (psli->num_rings > 3)
 580                 status |= HC_R3INT_ENA;
 581
 582         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 583             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 584                 status &= ~(HC_R0INT_ENA);
 585
 586         writel(status, phba->HCregaddr);
 587         readl(phba->HCregaddr); /* flush */
 588         spin_unlock_irq(&phba->hbalock);
 589
 590         /* Set up ring-0 (ELS) timer */
 591         timeout = phba->fc_ratov * 2;
 592         mod_timer(&vport->els_tmofunc,
 593                   jiffies + msecs_to_jiffies(1000 * timeout));
 594         /* Set up heart beat (HB) timer */
 595         mod_timer(&phba->hb_tmofunc,
 596                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 597         phba->hb_outstanding = 0;
 598         phba->last_completion_time = jiffies;
 599         /* Set up error attention (ERATT) polling timer */
 600         mod_timer(&phba->eratt_poll,
 601                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 602
 603         if (phba->hba_flag & LINK_DISABLED) {
 604                 lpfc_printf_log(phba,
 605                         KERN_ERR, LOG_INIT,
 606                         "2598 Adapter Link is disabled.\n");
 607                 lpfc_down_link(phba, pmb);
 608                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 609                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 610                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 611                         lpfc_printf_log(phba,
 612                         KERN_ERR, LOG_INIT,
 613                         "2599 Adapter failed to issue DOWN_LINK"
 614                         " mbox command rc 0x%x\n", rc);
 615
 616                         mempool_free(pmb, phba->mbox_mem_pool);
 617                         return -EIO;
 618                 }
 619         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 620                 mempool_free(pmb, phba->mbox_mem_pool);
 621                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 622                 if (rc)
 623                         return rc;
 624         }
 625         /* MBOX buffer will be freed in mbox compl */
 626         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 627         if (!pmb) {
 628                 phba->link_state = LPFC_HBA_ERROR;
 629                 return -ENOMEM;
 630         }
 631
 632         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 633         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 634         pmb->vport = phba->pport;
 635         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 636
 637         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 638                 lpfc_printf_log(phba,
 639                                 KERN_ERR,
 640                                 LOG_INIT,
 641                                 "0456 Adapter failed to issue "
 642                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 643                                 rc);
 644                 mempool_free(pmb, phba->mbox_mem_pool);
 645         }
 646
 647         /* Get Option rom version */
 648         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 649         if (!pmb) {
 650                 phba->link_state = LPFC_HBA_ERROR;
 651                 return -ENOMEM;
 652         }
 653
 654         lpfc_dump_wakeup_param(phba, pmb);
 655         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 656         pmb->vport = phba->pport;
 657         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 658
 659         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 660                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 661                                 "to get Option ROM version status x%x\n", rc);
 662                 mempool_free(pmb, phba->mbox_mem_pool);
 663         }
 664
 665         return 0;
 666 }
 667
 668 /**
 669  * lpfc_hba_init_link - Initialize the FC link
 670  * @phba: pointer to lpfc hba data structure.
 671  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 672  *
 673  * This routine will issue the INIT_LINK mailbox command call.
 674  * It is available to other drivers through the lpfc_hba data
 675  * structure for use as a delayed link up mechanism with the
 676  * module parameter lpfc_suppress_link_up.
 677  *
 678  * Return code
 679  *              0 - success
 680  *              Any other value - error
 681  **/
 682 static int
 683 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 684 {
 685         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 686 }
 687
 688 /**
 689  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 690  * @phba: pointer to lpfc hba data structure.
 691  * @fc_topology: desired fc topology.
 692  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 693  *
 694  * This routine will issue the INIT_LINK mailbox command call.
 695  * It is available to other drivers through the lpfc_hba data
 696  * structure for use as a delayed link up mechanism with the
 697  * module parameter lpfc_suppress_link_up.
 698  *
 699  * Return code
 700  *              0 - success
 701  *              Any other value - error
 702  **/
 703 int
 704 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 705                                uint32_t flag)
 706 {
 707         struct lpfc_vport *vport = phba->pport;
 708         LPFC_MBOXQ_t *pmb;
 709         MAILBOX_t *mb;
 710         int rc;
 711
 712         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 713         if (!pmb) {
 714                 phba->link_state = LPFC_HBA_ERROR;
 715                 return -ENOMEM;
 716         }
 717         mb = &pmb->u.mb;
 718         pmb->vport = vport;
 719
 720         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 721             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 722              !(phba->lmt & LMT_1Gb)) ||
 723             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 724              !(phba->lmt & LMT_2Gb)) ||
 725             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 726              !(phba->lmt & LMT_4Gb)) ||
 727             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 728              !(phba->lmt & LMT_8Gb)) ||
 729             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 730              !(phba->lmt & LMT_10Gb)) ||
 731             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 732              !(phba->lmt & LMT_16Gb)) ||
 733             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 734              !(phba->lmt & LMT_32Gb)) ||
 735             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 736              !(phba->lmt & LMT_64Gb))) {
 737                 /* Reset link speed to auto */
 738                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 739                         "1302 Invalid speed for this board:%d "
 740                         "Reset link speed to auto.\n",
 741                         phba->cfg_link_speed);
 742                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 743         }
 744         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 745         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 746         if (phba->sli_rev < LPFC_SLI_REV4)
 747                 lpfc_set_loopback_flag(phba);
 748         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 749         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 750                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 751                         "0498 Adapter failed to init, mbxCmd x%x "
 752                         "INIT_LINK, mbxStatus x%x\n",
 753                         mb->mbxCommand, mb->mbxStatus);
 754                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 755                         /* Clear all interrupt enable conditions */
 756                         writel(0, phba->HCregaddr);
 757                         readl(phba->HCregaddr); /* flush */
 758                         /* Clear all pending interrupts */
 759                         writel(0xffffffff, phba->HAregaddr);
 760                         readl(phba->HAregaddr); /* flush */
 761                 }
 762                 phba->link_state = LPFC_HBA_ERROR;
 763                 if (rc != MBX_BUSY || flag == MBX_POLL)
 764                         mempool_free(pmb, phba->mbox_mem_pool);
 765                 return -EIO;
 766         }
 767         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 768         if (flag == MBX_POLL)
 769                 mempool_free(pmb, phba->mbox_mem_pool);
 770
 771         return 0;
 772 }
 773
 774 /**
 775  * lpfc_hba_down_link - this routine downs the FC link
 776  * @phba: pointer to lpfc hba data structure.
 777  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 778  *
 779  * This routine will issue the DOWN_LINK mailbox command call.
 780  * It is available to other drivers through the lpfc_hba data
 781  * structure for use to stop the link.
 782  *
 783  * Return code
 784  *              0 - success
 785  *              Any other value - error
 786  **/
 787 static int
 788 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 789 {
 790         LPFC_MBOXQ_t *pmb;
 791         int rc;
 792
 793         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 794         if (!pmb) {
 795                 phba->link_state = LPFC_HBA_ERROR;
 796                 return -ENOMEM;
 797         }
 798
 799         lpfc_printf_log(phba,
 800                 KERN_ERR, LOG_INIT,
 801                 "0491 Adapter Link is disabled.\n");
 802         lpfc_down_link(phba, pmb);
 803         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 804         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 805         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 806                 lpfc_printf_log(phba,
 807                 KERN_ERR, LOG_INIT,
 808                 "2522 Adapter failed to issue DOWN_LINK"
 809                 " mbox command rc 0x%x\n", rc);
 810
 811                 mempool_free(pmb, phba->mbox_mem_pool);
 812                 return -EIO;
 813         }
 814         if (flag == MBX_POLL)
 815                 mempool_free(pmb, phba->mbox_mem_pool);
 816
 817         return 0;
 818 }
 819
 820 /**
 821  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 822  * @phba: pointer to lpfc HBA data structure.
 823  *
 824  * This routine will do LPFC uninitialization before the HBA is reset when
 825  * bringing down the SLI Layer.
 826  *
 827  * Return codes
 828  *   0 - success.
 829  *   Any other value - error.
 830  **/
 831 int
 832 lpfc_hba_down_prep(struct lpfc_hba *phba)
 833 {
 834         struct lpfc_vport **vports;
 835         int i;
 836
 837         if (phba->sli_rev <= LPFC_SLI_REV3) {
 838                 /* Disable interrupts */
 839                 writel(0, phba->HCregaddr);
 840                 readl(phba->HCregaddr); /* flush */
 841         }
 842
 843         if (phba->pport->load_flag & FC_UNLOADING)
 844                 lpfc_cleanup_discovery_resources(phba->pport);
 845         else {
 846                 vports = lpfc_create_vport_work_array(phba);
 847                 if (vports != NULL)
 848                         for (i = 0; i <= phba->max_vports &&
 849                                 vports[i] != NULL; i++)
 850                                 lpfc_cleanup_discovery_resources(vports[i]);
 851                 lpfc_destroy_vport_work_array(phba, vports);
 852         }
 853         return 0;
 854 }
 855
 856 /**
 857  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 858  * rspiocb which got deferred
 859  *
 860  * @phba: pointer to lpfc HBA data structure.
 861  *
 862  * This routine will cleanup completed slow path events after HBA is reset
 863  * when bringing down the SLI Layer.
 864  *
 865  *
 866  * Return codes
 867  *   void.
 868  **/
 869 static void
 870 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 871 {
 872         struct lpfc_iocbq *rspiocbq;
 873         struct hbq_dmabuf *dmabuf;
 874         struct lpfc_cq_event *cq_event;
 875
 876         spin_lock_irq(&phba->hbalock);
 877         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 878         spin_unlock_irq(&phba->hbalock);
 879
 880         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 881                 /* Get the response iocb from the head of work queue */
 882                 spin_lock_irq(&phba->hbalock);
 883                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 884                                  cq_event, struct lpfc_cq_event, list);
 885                 spin_unlock_irq(&phba->hbalock);
 886
 887                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 888                 case CQE_CODE_COMPL_WQE:
 889                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 890                                                  cq_event);
 891                         lpfc_sli_release_iocbq(phba, rspiocbq);
 892                         break;
 893                 case CQE_CODE_RECEIVE:
 894                 case CQE_CODE_RECEIVE_V1:
 895                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 896                                               cq_event);
 897                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 898                 }
 899         }
 900 }
 901
 902 /**
 903  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 904  * @phba: pointer to lpfc HBA data structure.
 905  *
 906  * This routine will cleanup posted ELS buffers after the HBA is reset
 907  * when bringing down the SLI Layer.
 908  *
 909  *
 910  * Return codes
 911  *   void.
 912  **/
 913 static void
 914 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 915 {
 916         struct lpfc_sli *psli = &phba->sli;
 917         struct lpfc_sli_ring *pring;
 918         struct lpfc_dmabuf *mp, *next_mp;
 919         LIST_HEAD(buflist);
 920         int count;
 921
 922         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 923                 lpfc_sli_hbqbuf_free_all(phba);
 924         else {
 925                 /* Cleanup preposted buffers on the ELS ring */
 926                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 927                 spin_lock_irq(&phba->hbalock);
 928                 list_splice_init(&pring->postbufq, &buflist);
 929                 spin_unlock_irq(&phba->hbalock);
 930
 931                 count = 0;
 932                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 933                         list_del(&mp->list);
 934                         count++;
 935                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 936                         kfree(mp);
 937                 }
 938
 939                 spin_lock_irq(&phba->hbalock);
 940                 pring->postbufq_cnt -= count;
 941                 spin_unlock_irq(&phba->hbalock);
 942         }
 943 }
 944
 945 /**
 946  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 947  * @phba: pointer to lpfc HBA data structure.
 948  *
 949  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 950  * down the SLI Layer.
 951  *
 952  * Return codes
 953  *   void
 954  **/
 955 static void
 956 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 957 {
 958         struct lpfc_sli *psli = &phba->sli;
 959         struct lpfc_queue *qp = NULL;
 960         struct lpfc_sli_ring *pring;
 961         LIST_HEAD(completions);
 962         int i;
 963         struct lpfc_iocbq *piocb, *next_iocb;
 964
 965         if (phba->sli_rev != LPFC_SLI_REV4) {
 966                 for (i = 0; i < psli->num_rings; i++) {
 967                         pring = &psli->sli3_ring[i];
 968                         spin_lock_irq(&phba->hbalock);
 969                         /* At this point in time the HBA is either reset or DOA
 970                          * Nothing should be on txcmplq as it will
 971                          * NEVER complete.
 972                          */
 973                         list_splice_init(&pring->txcmplq, &completions);
 974                         pring->txcmplq_cnt = 0;
 975                         spin_unlock_irq(&phba->hbalock);
 976
 977                         lpfc_sli_abort_iocb_ring(phba, pring);
 978                 }
 979                 /* Cancel all the IOCBs from the completions list */
 980                 lpfc_sli_cancel_iocbs(phba, &completions,
 981                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 982                 return;
 983         }
 984         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 985                 pring = qp->pring;
 986                 if (!pring)
 987                         continue;
 988                 spin_lock_irq(&pring->ring_lock);
 989                 list_for_each_entry_safe(piocb, next_iocb,
 990                                          &pring->txcmplq, list)
 991                         piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
 992                 list_splice_init(&pring->txcmplq, &completions);
 993                 pring->txcmplq_cnt = 0;
 994                 spin_unlock_irq(&pring->ring_lock);
 995                 lpfc_sli_abort_iocb_ring(phba, pring);
 996         }
 997         /* Cancel all the IOCBs from the completions list */
 998         lpfc_sli_cancel_iocbs(phba, &completions,
 999                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1000 }
1001
1002 /**
1003  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
1004         int i;
1005  * @phba: pointer to lpfc HBA data structure.
1006  *
1007  * This routine will do uninitialization after the HBA is reset when bring
1008  * down the SLI Layer.
1009  *
1010  * Return codes
1011  *   0 - success.
1012  *   Any other value - error.
1013  **/
1014 static int
1015 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1016 {
1017         lpfc_hba_free_post_buf(phba);
1018         lpfc_hba_clean_txcmplq(phba);
1019         return 0;
1020 }
1021
1022 /**
1023  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1024  * @phba: pointer to lpfc HBA data structure.
1025  *
1026  * This routine will do uninitialization after the HBA is reset when bring
1027  * down the SLI Layer.
1028  *
1029  * Return codes
1030  *   0 - success.
1031  *   Any other value - error.
1032  **/
1033 static int
1034 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1035 {
1036         struct lpfc_scsi_buf *psb, *psb_next;
1037         struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next;
1038         LIST_HEAD(aborts);
1039         LIST_HEAD(nvme_aborts);
1040         LIST_HEAD(nvmet_aborts);
1041         unsigned long iflag = 0;
1042         struct lpfc_sglq *sglq_entry = NULL;
1043         int cnt;
1044
1045
1046         lpfc_sli_hbqbuf_free_all(phba);
1047         lpfc_hba_clean_txcmplq(phba);
1048
1049         /* At this point in time the HBA is either reset or DOA. Either
1050          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1051          * on the lpfc_els_sgl_list so that it can either be freed if the
1052          * driver is unloading or reposted if the driver is restarting
1053          * the port.
1054          */
1055         spin_lock_irq(&phba->hbalock);  /* required for lpfc_els_sgl_list and */
1056                                         /* scsl_buf_list */
1057         /* sgl_list_lock required because worker thread uses this
1058          * list.
1059          */
1060         spin_lock(&phba->sli4_hba.sgl_list_lock);
1061         list_for_each_entry(sglq_entry,
1062                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1063                 sglq_entry->state = SGL_FREED;
1064
1065         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1066                         &phba->sli4_hba.lpfc_els_sgl_list);
1067
1068
1069         spin_unlock(&phba->sli4_hba.sgl_list_lock);
1070         /* abts_scsi_buf_list_lock required because worker thread uses this
1071          * list.
1072          */
1073         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
1074                 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1075                 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1076                                  &aborts);
1077                 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1078         }
1079
1080         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1081                 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1082                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvme_buf_list,
1083                                  &nvme_aborts);
1084                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1085                                  &nvmet_aborts);
1086                 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1087         }
1088
1089         spin_unlock_irq(&phba->hbalock);
1090
1091         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1092                 psb->pCmd = NULL;
1093                 psb->status = IOSTAT_SUCCESS;
1094         }
1095         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1096         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1097         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1098
1099         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1100                 cnt = 0;
1101                 list_for_each_entry_safe(psb, psb_next, &nvme_aborts, list) {
1102                         psb->pCmd = NULL;
1103                         psb->status = IOSTAT_SUCCESS;
1104                         cnt++;
1105                 }
1106                 spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag);
1107                 phba->put_nvme_bufs += cnt;
1108                 list_splice(&nvme_aborts, &phba->lpfc_nvme_buf_list_put);
1109                 spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag);
1110
1111                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1112                         ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP);
1113                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1114                 }
1115         }
1116
1117         lpfc_sli4_free_sp_events(phba);
1118         return 0;
1119 }
1120
1121 /**
1122  * lpfc_hba_down_post - Wrapper func for hba down post routine
1123  * @phba: pointer to lpfc HBA data structure.
1124  *
1125  * This routine wraps the actual SLI3 or SLI4 routine for performing
1126  * uninitialization after the HBA is reset when bring down the SLI Layer.
1127  *
1128  * Return codes
1129  *   0 - success.
1130  *   Any other value - error.
1131  **/
1132 int
1133 lpfc_hba_down_post(struct lpfc_hba *phba)
1134 {
1135         return (*phba->lpfc_hba_down_post)(phba);
1136 }
1137
1138 /**
1139  * lpfc_hb_timeout - The HBA-timer timeout handler
1140  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1141  *
1142  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1143  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1144  * work-port-events bitmap and the worker thread is notified. This timeout
1145  * event will be used by the worker thread to invoke the actual timeout
1146  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1147  * be performed in the timeout handler and the HBA timeout event bit shall
1148  * be cleared by the worker thread after it has taken the event bitmap out.
1149  **/
1150 static void
1151 lpfc_hb_timeout(struct timer_list *t)
1152 {
1153         struct lpfc_hba *phba;
1154         uint32_t tmo_posted;
1155         unsigned long iflag;
1156
1157         phba = from_timer(phba, t, hb_tmofunc);
1158
1159         /* Check for heart beat timeout conditions */
1160         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1161         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1162         if (!tmo_posted)
1163                 phba->pport->work_port_events |= WORKER_HB_TMO;
1164         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1165
1166         /* Tell the worker thread there is work to do */
1167         if (!tmo_posted)
1168                 lpfc_worker_wake_up(phba);
1169         return;
1170 }
1171
1172 /**
1173  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1174  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1175  *
1176  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1177  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1178  * work-port-events bitmap and the worker thread is notified. This timeout
1179  * event will be used by the worker thread to invoke the actual timeout
1180  * handler routine, lpfc_rrq_handler. Any periodical operations will
1181  * be performed in the timeout handler and the RRQ timeout event bit shall
1182  * be cleared by the worker thread after it has taken the event bitmap out.
1183  **/
1184 static void
1185 lpfc_rrq_timeout(struct timer_list *t)
1186 {
1187         struct lpfc_hba *phba;
1188         unsigned long iflag;
1189
1190         phba = from_timer(phba, t, rrq_tmr);
1191         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1192         if (!(phba->pport->load_flag & FC_UNLOADING))
1193                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1194         else
1195                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1196         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1197
1198         if (!(phba->pport->load_flag & FC_UNLOADING))
1199                 lpfc_worker_wake_up(phba);
1200 }
1201
1202 /**
1203  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1204  * @phba: pointer to lpfc hba data structure.
1205  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1206  *
1207  * This is the callback function to the lpfc heart-beat mailbox command.
1208  * If configured, the lpfc driver issues the heart-beat mailbox command to
1209  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1210  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1211  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1212  * heart-beat outstanding state. Once the mailbox command comes back and
1213  * no error conditions detected, the heart-beat mailbox command timer is
1214  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1215  * state is cleared for the next heart-beat. If the timer expired with the
1216  * heart-beat outstanding state set, the driver will put the HBA offline.
1217  **/
1218 static void
1219 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1220 {
1221         unsigned long drvr_flag;
1222
1223         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1224         phba->hb_outstanding = 0;
1225         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1226
1227         /* Check and reset heart-beat timer is necessary */
1228         mempool_free(pmboxq, phba->mbox_mem_pool);
1229         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1230                 !(phba->link_state == LPFC_HBA_ERROR) &&
1231                 !(phba->pport->load_flag & FC_UNLOADING))
1232                 mod_timer(&phba->hb_tmofunc,
1233                           jiffies +
1234                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1235         return;
1236 }
1237
1238 /**
1239  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1240  * @phba: pointer to lpfc hba data structure.
1241  *
1242  * This is the actual HBA-timer timeout handler to be invoked by the worker
1243  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1244  * handler performs any periodic operations needed for the device. If such
1245  * periodic event has already been attended to either in the interrupt handler
1246  * or by processing slow-ring or fast-ring events within the HBA-timer
1247  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1248  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1249  * is configured and there is no heart-beat mailbox command outstanding, a
1250  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1251  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1252  * to offline.
1253  **/
1254 void
1255 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1256 {
1257         struct lpfc_vport **vports;
1258         LPFC_MBOXQ_t *pmboxq;
1259         struct lpfc_dmabuf *buf_ptr;
1260         int retval, i;
1261         struct lpfc_sli *psli = &phba->sli;
1262         LIST_HEAD(completions);
1263         struct lpfc_queue *qp;
1264         unsigned long time_elapsed;
1265         uint32_t tick_cqe, max_cqe, val;
1266         uint64_t tot, data1, data2, data3;
1267         struct lpfc_nvmet_tgtport *tgtp;
1268         struct lpfc_register reg_data;
1269         struct nvme_fc_local_port *localport;
1270         struct lpfc_nvme_lport *lport;
1271         struct lpfc_nvme_ctrl_stat *cstat;
1272         void __iomem *eqdreg = phba->sli4_hba.u.if_type2.EQDregaddr;
1273
1274         vports = lpfc_create_vport_work_array(phba);
1275         if (vports != NULL)
1276                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1277                         lpfc_rcv_seq_check_edtov(vports[i]);
1278                         lpfc_fdmi_num_disc_check(vports[i]);
1279                 }
1280         lpfc_destroy_vport_work_array(phba, vports);
1281
1282         if ((phba->link_state == LPFC_HBA_ERROR) ||
1283                 (phba->pport->load_flag & FC_UNLOADING) ||
1284                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1285                 return;
1286
1287         if (phba->cfg_auto_imax) {
1288                 if (!phba->last_eqdelay_time) {
1289                         phba->last_eqdelay_time = jiffies;
1290                         goto skip_eqdelay;
1291                 }
1292                 time_elapsed = jiffies - phba->last_eqdelay_time;
1293                 phba->last_eqdelay_time = jiffies;
1294
1295                 tot = 0xffff;
1296                 /* Check outstanding IO count */
1297                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1298                         if (phba->nvmet_support) {
1299                                 tgtp = phba->targetport->private;
1300                                 /* Calculate outstanding IOs */
1301                                 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop);
1302                                 tot += atomic_read(&tgtp->xmt_fcp_release);
1303                                 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot;
1304                         } else {
1305                                 localport = phba->pport->localport;
1306                                 if (!localport || !localport->private)
1307                                         goto skip_eqdelay;
1308                                 lport = (struct lpfc_nvme_lport *)
1309                                         localport->private;
1310                                 tot = 0;
1311                                 for (i = 0;
1312                                         i < phba->cfg_nvme_io_channel; i++) {
1313                                         cstat = &lport->cstat[i];
1314                                         data1 = atomic_read(
1315                                                 &cstat->fc4NvmeInputRequests);
1316                                         data2 = atomic_read(
1317                                                 &cstat->fc4NvmeOutputRequests);
1318                                         data3 = atomic_read(
1319                                                 &cstat->fc4NvmeControlRequests);
1320                                         tot += (data1 + data2 + data3);
1321                                         tot -= atomic_read(
1322                                                 &cstat->fc4NvmeIoCmpls);
1323                                 }
1324                         }
1325                 }
1326
1327                 /* Interrupts per sec per EQ */
1328                 val = phba->cfg_fcp_imax / phba->io_channel_irqs;
1329                 tick_cqe = val / CONFIG_HZ; /* Per tick per EQ */
1330
1331                 /* Assume 1 CQE/ISR, calc max CQEs allowed for time duration */
1332                 max_cqe = time_elapsed * tick_cqe;
1333
1334                 for (i = 0; i < phba->io_channel_irqs; i++) {
1335                         /* Fast-path EQ */
1336                         qp = phba->sli4_hba.hba_eq[i];
1337                         if (!qp)
1338                                 continue;
1339
1340                         /* Use no EQ delay if we don't have many outstanding
1341                          * IOs, or if we are only processing 1 CQE/ISR or less.
1342                          * Otherwise, assume we can process up to lpfc_fcp_imax
1343                          * interrupts per HBA.
1344                          */
1345                         if (tot < LPFC_NODELAY_MAX_IO ||
1346                             qp->EQ_cqe_cnt <= max_cqe)
1347                                 val = 0;
1348                         else
1349                                 val = phba->cfg_fcp_imax;
1350
1351                         if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
1352                                 /* Use EQ Delay Register method */
1353
1354                                 /* Convert for EQ Delay register */
1355                                 if (val) {
1356                                         /* First, interrupts per sec per EQ */
1357                                         val = phba->cfg_fcp_imax /
1358                                                 phba->io_channel_irqs;
1359
1360                                         /* us delay between each interrupt */
1361                                         val = LPFC_SEC_TO_USEC / val;
1362                                 }
1363                                 if (val != qp->q_mode) {
1364                                         reg_data.word0 = 0;
1365                                         bf_set(lpfc_sliport_eqdelay_id,
1366                                                &reg_data, qp->queue_id);
1367                                         bf_set(lpfc_sliport_eqdelay_delay,
1368                                                &reg_data, val);
1369                                         writel(reg_data.word0, eqdreg);
1370                                 }
1371                         } else {
1372                                 /* Use mbox command method */
1373                                 if (val != qp->q_mode)
1374                                         lpfc_modify_hba_eq_delay(phba, i,
1375                                                                  1, val);
1376                         }
1377
1378                         /*
1379                          * val is cfg_fcp_imax or 0 for mbox delay or us delay
1380                          * between interrupts for EQDR.
1381                          */
1382                         qp->q_mode = val;
1383                         qp->EQ_cqe_cnt = 0;
1384                 }
1385         }
1386
1387 skip_eqdelay:
1388         spin_lock_irq(&phba->pport->work_port_lock);
1389
1390         if (time_after(phba->last_completion_time +
1391                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1392                         jiffies)) {
1393                 spin_unlock_irq(&phba->pport->work_port_lock);
1394                 if (!phba->hb_outstanding)
1395                         mod_timer(&phba->hb_tmofunc,
1396                                 jiffies +
1397                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1398                 else
1399                         mod_timer(&phba->hb_tmofunc,
1400                                 jiffies +
1401                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1402                 return;
1403         }
1404         spin_unlock_irq(&phba->pport->work_port_lock);
1405
1406         if (phba->elsbuf_cnt &&
1407                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1408                 spin_lock_irq(&phba->hbalock);
1409                 list_splice_init(&phba->elsbuf, &completions);
1410                 phba->elsbuf_cnt = 0;
1411                 phba->elsbuf_prev_cnt = 0;
1412                 spin_unlock_irq(&phba->hbalock);
1413
1414                 while (!list_empty(&completions)) {
1415                         list_remove_head(&completions, buf_ptr,
1416                                 struct lpfc_dmabuf, list);
1417                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1418                         kfree(buf_ptr);
1419                 }
1420         }
1421         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1422
1423         /* If there is no heart beat outstanding, issue a heartbeat command */
1424         if (phba->cfg_enable_hba_heartbeat) {
1425                 if (!phba->hb_outstanding) {
1426                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1427                                 (list_empty(&psli->mboxq))) {
1428                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1429                                                         GFP_KERNEL);
1430                                 if (!pmboxq) {
1431                                         mod_timer(&phba->hb_tmofunc,
1432                                                  jiffies +
1433                                                  msecs_to_jiffies(1000 *
1434                                                  LPFC_HB_MBOX_INTERVAL));
1435                                         return;
1436                                 }
1437
1438                                 lpfc_heart_beat(phba, pmboxq);
1439                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1440                                 pmboxq->vport = phba->pport;
1441                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1442                                                 MBX_NOWAIT);
1443
1444                                 if (retval != MBX_BUSY &&
1445                                         retval != MBX_SUCCESS) {
1446                                         mempool_free(pmboxq,
1447                                                         phba->mbox_mem_pool);
1448                                         mod_timer(&phba->hb_tmofunc,
1449                                                 jiffies +
1450                                                 msecs_to_jiffies(1000 *
1451                                                 LPFC_HB_MBOX_INTERVAL));
1452                                         return;
1453                                 }
1454                                 phba->skipped_hb = 0;
1455                                 phba->hb_outstanding = 1;
1456                         } else if (time_before_eq(phba->last_completion_time,
1457                                         phba->skipped_hb)) {
1458                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1459                                         "2857 Last completion time not "
1460                                         " updated in %d ms\n",
1461                                         jiffies_to_msecs(jiffies
1462                                                  - phba->last_completion_time));
1463                         } else
1464                                 phba->skipped_hb = jiffies;
1465
1466                         mod_timer(&phba->hb_tmofunc,
1467                                  jiffies +
1468                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1469                         return;
1470                 } else {
1471                         /*
1472                         * If heart beat timeout called with hb_outstanding set
1473                         * we need to give the hb mailbox cmd a chance to
1474                         * complete or TMO.
1475                         */
1476                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1477                                         "0459 Adapter heartbeat still out"
1478                                         "standing:last compl time was %d ms.\n",
1479                                         jiffies_to_msecs(jiffies
1480                                                  - phba->last_completion_time));
1481                         mod_timer(&phba->hb_tmofunc,
1482                                 jiffies +
1483                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1484                 }
1485         } else {
1486                         mod_timer(&phba->hb_tmofunc,
1487                                 jiffies +
1488                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1489         }
1490 }
1491
1492 /**
1493  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1494  * @phba: pointer to lpfc hba data structure.
1495  *
1496  * This routine is called to bring the HBA offline when HBA hardware error
1497  * other than Port Error 6 has been detected.
1498  **/
1499 static void
1500 lpfc_offline_eratt(struct lpfc_hba *phba)
1501 {
1502         struct lpfc_sli   *psli = &phba->sli;
1503
1504         spin_lock_irq(&phba->hbalock);
1505         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1506         spin_unlock_irq(&phba->hbalock);
1507         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1508
1509         lpfc_offline(phba);
1510         lpfc_reset_barrier(phba);
1511         spin_lock_irq(&phba->hbalock);
1512         lpfc_sli_brdreset(phba);
1513         spin_unlock_irq(&phba->hbalock);
1514         lpfc_hba_down_post(phba);
1515         lpfc_sli_brdready(phba, HS_MBRDY);
1516         lpfc_unblock_mgmt_io(phba);
1517         phba->link_state = LPFC_HBA_ERROR;
1518         return;
1519 }
1520
1521 /**
1522  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1523  * @phba: pointer to lpfc hba data structure.
1524  *
1525  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1526  * other than Port Error 6 has been detected.
1527  **/
1528 void
1529 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1530 {
1531         spin_lock_irq(&phba->hbalock);
1532         phba->link_state = LPFC_HBA_ERROR;
1533         spin_unlock_irq(&phba->hbalock);
1534
1535         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1536         lpfc_offline(phba);
1537         lpfc_hba_down_post(phba);
1538         lpfc_unblock_mgmt_io(phba);
1539 }
1540
1541 /**
1542  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1543  * @phba: pointer to lpfc hba data structure.
1544  *
1545  * This routine is invoked to handle the deferred HBA hardware error
1546  * conditions. This type of error is indicated by HBA by setting ER1
1547  * and another ER bit in the host status register. The driver will
1548  * wait until the ER1 bit clears before handling the error condition.
1549  **/
1550 static void
1551 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1552 {
1553         uint32_t old_host_status = phba->work_hs;
1554         struct lpfc_sli *psli = &phba->sli;
1555
1556         /* If the pci channel is offline, ignore possible errors,
1557          * since we cannot communicate with the pci card anyway.
1558          */
1559         if (pci_channel_offline(phba->pcidev)) {
1560                 spin_lock_irq(&phba->hbalock);
1561                 phba->hba_flag &= ~DEFER_ERATT;
1562                 spin_unlock_irq(&phba->hbalock);
1563                 return;
1564         }
1565
1566         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1567                 "0479 Deferred Adapter Hardware Error "
1568                 "Data: x%x x%x x%x\n",
1569                 phba->work_hs,
1570                 phba->work_status[0], phba->work_status[1]);
1571
1572         spin_lock_irq(&phba->hbalock);
1573         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1574         spin_unlock_irq(&phba->hbalock);
1575
1576
1577         /*
1578          * Firmware stops when it triggred erratt. That could cause the I/Os
1579          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1580          * SCSI layer retry it after re-establishing link.
1581          */
1582         lpfc_sli_abort_fcp_rings(phba);
1583
1584         /*
1585          * There was a firmware error. Take the hba offline and then
1586          * attempt to restart it.
1587          */
1588         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1589         lpfc_offline(phba);
1590
1591         /* Wait for the ER1 bit to clear.*/
1592         while (phba->work_hs & HS_FFER1) {
1593                 msleep(100);
1594                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1595                         phba->work_hs = UNPLUG_ERR ;
1596                         break;
1597                 }
1598                 /* If driver is unloading let the worker thread continue */
1599                 if (phba->pport->load_flag & FC_UNLOADING) {
1600                         phba->work_hs = 0;
1601                         break;
1602                 }
1603         }
1604
1605         /*
1606          * This is to ptrotect against a race condition in which
1607          * first write to the host attention register clear the
1608          * host status register.
1609          */
1610         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1611                 phba->work_hs = old_host_status & ~HS_FFER1;
1612
1613         spin_lock_irq(&phba->hbalock);
1614         phba->hba_flag &= ~DEFER_ERATT;
1615         spin_unlock_irq(&phba->hbalock);
1616         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1617         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1618 }
1619
1620 static void
1621 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1622 {
1623         struct lpfc_board_event_header board_event;
1624         struct Scsi_Host *shost;
1625
1626         board_event.event_type = FC_REG_BOARD_EVENT;
1627         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1628         shost = lpfc_shost_from_vport(phba->pport);
1629         fc_host_post_vendor_event(shost, fc_get_event_number(),
1630                                   sizeof(board_event),
1631                                   (char *) &board_event,
1632                                   LPFC_NL_VENDOR_ID);
1633 }
1634
1635 /**
1636  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1637  * @phba: pointer to lpfc hba data structure.
1638  *
1639  * This routine is invoked to handle the following HBA hardware error
1640  * conditions:
1641  * 1 - HBA error attention interrupt
1642  * 2 - DMA ring index out of range
1643  * 3 - Mailbox command came back as unknown
1644  **/
1645 static void
1646 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1647 {
1648         struct lpfc_vport *vport = phba->pport;
1649         struct lpfc_sli   *psli = &phba->sli;
1650         uint32_t event_data;
1651         unsigned long temperature;
1652         struct temp_event temp_event_data;
1653         struct Scsi_Host  *shost;
1654
1655         /* If the pci channel is offline, ignore possible errors,
1656          * since we cannot communicate with the pci card anyway.
1657          */
1658         if (pci_channel_offline(phba->pcidev)) {
1659                 spin_lock_irq(&phba->hbalock);
1660                 phba->hba_flag &= ~DEFER_ERATT;
1661                 spin_unlock_irq(&phba->hbalock);
1662                 return;
1663         }
1664
1665         /* If resets are disabled then leave the HBA alone and return */
1666         if (!phba->cfg_enable_hba_reset)
1667                 return;
1668
1669         /* Send an internal error event to mgmt application */
1670         lpfc_board_errevt_to_mgmt(phba);
1671
1672         if (phba->hba_flag & DEFER_ERATT)
1673                 lpfc_handle_deferred_eratt(phba);
1674
1675         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1676                 if (phba->work_hs & HS_FFER6)
1677                         /* Re-establishing Link */
1678                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1679                                         "1301 Re-establishing Link "
1680                                         "Data: x%x x%x x%x\n",
1681                                         phba->work_hs, phba->work_status[0],
1682                                         phba->work_status[1]);
1683                 if (phba->work_hs & HS_FFER8)
1684                         /* Device Zeroization */
1685                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1686                                         "2861 Host Authentication device "
1687                                         "zeroization Data:x%x x%x x%x\n",
1688                                         phba->work_hs, phba->work_status[0],
1689                                         phba->work_status[1]);
1690
1691                 spin_lock_irq(&phba->hbalock);
1692                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1693                 spin_unlock_irq(&phba->hbalock);
1694
1695                 /*
1696                 * Firmware stops when it triggled erratt with HS_FFER6.
1697                 * That could cause the I/Os dropped by the firmware.
1698                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1699                 * retry it after re-establishing link.
1700                 */
1701                 lpfc_sli_abort_fcp_rings(phba);
1702
1703                 /*
1704                  * There was a firmware error.  Take the hba offline and then
1705                  * attempt to restart it.
1706                  */
1707                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1708                 lpfc_offline(phba);
1709                 lpfc_sli_brdrestart(phba);
1710                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1711                         lpfc_unblock_mgmt_io(phba);
1712                         return;
1713                 }
1714                 lpfc_unblock_mgmt_io(phba);
1715         } else if (phba->work_hs & HS_CRIT_TEMP) {
1716                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1717                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1718                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1719                 temp_event_data.data = (uint32_t)temperature;
1720
1721                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1722                                 "0406 Adapter maximum temperature exceeded "
1723                                 "(%ld), taking this port offline "
1724                                 "Data: x%x x%x x%x\n",
1725                                 temperature, phba->work_hs,
1726                                 phba->work_status[0], phba->work_status[1]);
1727
1728                 shost = lpfc_shost_from_vport(phba->pport);
1729                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1730                                           sizeof(temp_event_data),
1731                                           (char *) &temp_event_data,
1732                                           SCSI_NL_VID_TYPE_PCI
1733                                           | PCI_VENDOR_ID_EMULEX);
1734
1735                 spin_lock_irq(&phba->hbalock);
1736                 phba->over_temp_state = HBA_OVER_TEMP;
1737                 spin_unlock_irq(&phba->hbalock);
1738                 lpfc_offline_eratt(phba);
1739
1740         } else {
1741                 /* The if clause above forces this code path when the status
1742                  * failure is a value other than FFER6. Do not call the offline
1743                  * twice. This is the adapter hardware error path.
1744                  */
1745                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1746                                 "0457 Adapter Hardware Error "
1747                                 "Data: x%x x%x x%x\n",
1748                                 phba->work_hs,
1749                                 phba->work_status[0], phba->work_status[1]);
1750
1751                 event_data = FC_REG_DUMP_EVENT;
1752                 shost = lpfc_shost_from_vport(vport);
1753                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1754                                 sizeof(event_data), (char *) &event_data,
1755                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1756
1757                 lpfc_offline_eratt(phba);
1758         }
1759         return;
1760 }
1761
1762 /**
1763  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1764  * @phba: pointer to lpfc hba data structure.
1765  * @mbx_action: flag for mailbox shutdown action.
1766  *
1767  * This routine is invoked to perform an SLI4 port PCI function reset in
1768  * response to port status register polling attention. It waits for port
1769  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1770  * During this process, interrupt vectors are freed and later requested
1771  * for handling possible port resource change.
1772  **/
1773 static int
1774 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1775                             bool en_rn_msg)
1776 {
1777         int rc;
1778         uint32_t intr_mode;
1779
1780         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1781             LPFC_SLI_INTF_IF_TYPE_2) {
1782                 /*
1783                  * On error status condition, driver need to wait for port
1784                  * ready before performing reset.
1785                  */
1786                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1787                 if (rc)
1788                         return rc;
1789         }
1790
1791         /* need reset: attempt for port recovery */
1792         if (en_rn_msg)
1793                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1794                                 "2887 Reset Needed: Attempting Port "
1795                                 "Recovery...\n");
1796         lpfc_offline_prep(phba, mbx_action);
1797         lpfc_offline(phba);
1798         /* release interrupt for possible resource change */
1799         lpfc_sli4_disable_intr(phba);
1800         lpfc_sli_brdrestart(phba);
1801         /* request and enable interrupt */
1802         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1803         if (intr_mode == LPFC_INTR_ERROR) {
1804                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1805                                 "3175 Failed to enable interrupt\n");
1806                 return -EIO;
1807         }
1808         phba->intr_mode = intr_mode;
1809         rc = lpfc_online(phba);
1810         if (rc == 0)
1811                 lpfc_unblock_mgmt_io(phba);
1812
1813         return rc;
1814 }
1815
1816 /**
1817  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1818  * @phba: pointer to lpfc hba data structure.
1819  *
1820  * This routine is invoked to handle the SLI4 HBA hardware error attention
1821  * conditions.
1822  **/
1823 static void
1824 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1825 {
1826         struct lpfc_vport *vport = phba->pport;
1827         uint32_t event_data;
1828         struct Scsi_Host *shost;
1829         uint32_t if_type;
1830         struct lpfc_register portstat_reg = {0};
1831         uint32_t reg_err1, reg_err2;
1832         uint32_t uerrlo_reg, uemasklo_reg;
1833         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1834         bool en_rn_msg = true;
1835         struct temp_event temp_event_data;
1836         struct lpfc_register portsmphr_reg;
1837         int rc, i;
1838
1839         /* If the pci channel is offline, ignore possible errors, since
1840          * we cannot communicate with the pci card anyway.
1841          */
1842         if (pci_channel_offline(phba->pcidev))
1843                 return;
1844
1845         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1846         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1847         switch (if_type) {
1848         case LPFC_SLI_INTF_IF_TYPE_0:
1849                 pci_rd_rc1 = lpfc_readl(
1850                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1851                                 &uerrlo_reg);
1852                 pci_rd_rc2 = lpfc_readl(
1853                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1854                                 &uemasklo_reg);
1855                 /* consider PCI bus read error as pci_channel_offline */
1856                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1857                         return;
1858                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1859                         lpfc_sli4_offline_eratt(phba);
1860                         return;
1861                 }
1862                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1863                                 "7623 Checking UE recoverable");
1864
1865                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1866                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1867                                        &portsmphr_reg.word0))
1868                                 continue;
1869
1870                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1871                                                    &portsmphr_reg);
1872                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1873                             LPFC_PORT_SEM_UE_RECOVERABLE)
1874                                 break;
1875                         /*Sleep for 1Sec, before checking SEMAPHORE */
1876                         msleep(1000);
1877                 }
1878
1879                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1880                                 "4827 smphr_port_status x%x : Waited %dSec",
1881                                 smphr_port_status, i);
1882
1883                 /* Recoverable UE, reset the HBA device */
1884                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1885                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1886                         for (i = 0; i < 20; i++) {
1887                                 msleep(1000);
1888                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1889                                     &portsmphr_reg.word0) &&
1890                                     (LPFC_POST_STAGE_PORT_READY ==
1891                                      bf_get(lpfc_port_smphr_port_status,
1892                                      &portsmphr_reg))) {
1893                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
1894                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
1895                                         if (rc == 0)
1896                                                 return;
1897                                         lpfc_printf_log(phba,
1898                                                 KERN_ERR, LOG_INIT,
1899                                                 "4215 Failed to recover UE");
1900                                         break;
1901                                 }
1902                         }
1903                 }
1904                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1905                                 "7624 Firmware not ready: Failing UE recovery,"
1906                                 " waited %dSec", i);
1907                 lpfc_sli4_offline_eratt(phba);
1908                 break;
1909
1910         case LPFC_SLI_INTF_IF_TYPE_2:
1911         case LPFC_SLI_INTF_IF_TYPE_6:
1912                 pci_rd_rc1 = lpfc_readl(
1913                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1914                                 &portstat_reg.word0);
1915                 /* consider PCI bus read error as pci_channel_offline */
1916                 if (pci_rd_rc1 == -EIO) {
1917                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1918                                 "3151 PCI bus read access failure: x%x\n",
1919                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1920                         return;
1921                 }
1922                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1923                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1924                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1925                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1926                                 "2889 Port Overtemperature event, "
1927                                 "taking port offline Data: x%x x%x\n",
1928                                 reg_err1, reg_err2);
1929
1930                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1931                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1932                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1933                         temp_event_data.data = 0xFFFFFFFF;
1934
1935                         shost = lpfc_shost_from_vport(phba->pport);
1936                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1937                                                   sizeof(temp_event_data),
1938                                                   (char *)&temp_event_data,
1939                                                   SCSI_NL_VID_TYPE_PCI
1940                                                   | PCI_VENDOR_ID_EMULEX);
1941
1942                         spin_lock_irq(&phba->hbalock);
1943                         phba->over_temp_state = HBA_OVER_TEMP;
1944                         spin_unlock_irq(&phba->hbalock);
1945                         lpfc_sli4_offline_eratt(phba);
1946                         return;
1947                 }
1948                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1949                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1950                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1951                                         "3143 Port Down: Firmware Update "
1952                                         "Detected\n");
1953                         en_rn_msg = false;
1954                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1955                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1956                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1957                                         "3144 Port Down: Debug Dump\n");
1958                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1959                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1960                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1961                                         "3145 Port Down: Provisioning\n");
1962
1963                 /* If resets are disabled then leave the HBA alone and return */
1964                 if (!phba->cfg_enable_hba_reset)
1965                         return;
1966
1967                 /* Check port status register for function reset */
1968                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1969                                 en_rn_msg);
1970                 if (rc == 0) {
1971                         /* don't report event on forced debug dump */
1972                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1973                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1974                                 return;
1975                         else
1976                                 break;
1977                 }
1978                 /* fall through for not able to recover */
1979                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1980                                 "3152 Unrecoverable error, bring the port "
1981                                 "offline\n");
1982                 lpfc_sli4_offline_eratt(phba);
1983                 break;
1984         case LPFC_SLI_INTF_IF_TYPE_1:
1985         default:
1986                 break;
1987         }
1988         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1989                         "3123 Report dump event to upper layer\n");
1990         /* Send an internal error event to mgmt application */
1991         lpfc_board_errevt_to_mgmt(phba);
1992
1993         event_data = FC_REG_DUMP_EVENT;
1994         shost = lpfc_shost_from_vport(vport);
1995         fc_host_post_vendor_event(shost, fc_get_event_number(),
1996                                   sizeof(event_data), (char *) &event_data,
1997                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1998 }
1999
2000 /**
2001  * lpfc_handle_eratt - Wrapper func for handling hba error attention
2002  * @phba: pointer to lpfc HBA data structure.
2003  *
2004  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2005  * routine from the API jump table function pointer from the lpfc_hba struct.
2006  *
2007  * Return codes
2008  *   0 - success.
2009  *   Any other value - error.
2010  **/
2011 void
2012 lpfc_handle_eratt(struct lpfc_hba *phba)
2013 {
2014         (*phba->lpfc_handle_eratt)(phba);
2015 }
2016
2017 /**
2018  * lpfc_handle_latt - The HBA link event handler
2019  * @phba: pointer to lpfc hba data structure.
2020  *
2021  * This routine is invoked from the worker thread to handle a HBA host
2022  * attention link event. SLI3 only.
2023  **/
2024 void
2025 lpfc_handle_latt(struct lpfc_hba *phba)
2026 {
2027         struct lpfc_vport *vport = phba->pport;
2028         struct lpfc_sli   *psli = &phba->sli;
2029         LPFC_MBOXQ_t *pmb;
2030         volatile uint32_t control;
2031         struct lpfc_dmabuf *mp;
2032         int rc = 0;
2033
2034         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2035         if (!pmb) {
2036                 rc = 1;
2037                 goto lpfc_handle_latt_err_exit;
2038         }
2039
2040         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2041         if (!mp) {
2042                 rc = 2;
2043                 goto lpfc_handle_latt_free_pmb;
2044         }
2045
2046         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2047         if (!mp->virt) {
2048                 rc = 3;
2049                 goto lpfc_handle_latt_free_mp;
2050         }
2051
2052         /* Cleanup any outstanding ELS commands */
2053         lpfc_els_flush_all_cmd(phba);
2054
2055         psli->slistat.link_event++;
2056         lpfc_read_topology(phba, pmb, mp);
2057         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2058         pmb->vport = vport;
2059         /* Block ELS IOCBs until we have processed this mbox command */
2060         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2061         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2062         if (rc == MBX_NOT_FINISHED) {
2063                 rc = 4;
2064                 goto lpfc_handle_latt_free_mbuf;
2065         }
2066
2067         /* Clear Link Attention in HA REG */
2068         spin_lock_irq(&phba->hbalock);
2069         writel(HA_LATT, phba->HAregaddr);
2070         readl(phba->HAregaddr); /* flush */
2071         spin_unlock_irq(&phba->hbalock);
2072
2073         return;
2074
2075 lpfc_handle_latt_free_mbuf:
2076         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2077         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2078 lpfc_handle_latt_free_mp:
2079         kfree(mp);
2080 lpfc_handle_latt_free_pmb:
2081         mempool_free(pmb, phba->mbox_mem_pool);
2082 lpfc_handle_latt_err_exit:
2083         /* Enable Link attention interrupts */
2084         spin_lock_irq(&phba->hbalock);
2085         psli->sli_flag |= LPFC_PROCESS_LA;
2086         control = readl(phba->HCregaddr);
2087         control |= HC_LAINT_ENA;
2088         writel(control, phba->HCregaddr);
2089         readl(phba->HCregaddr); /* flush */
2090
2091         /* Clear Link Attention in HA REG */
2092         writel(HA_LATT, phba->HAregaddr);
2093         readl(phba->HAregaddr); /* flush */
2094         spin_unlock_irq(&phba->hbalock);
2095         lpfc_linkdown(phba);
2096         phba->link_state = LPFC_HBA_ERROR;
2097
2098         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2099                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2100
2101         return;
2102 }
2103
2104 /**
2105  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2106  * @phba: pointer to lpfc hba data structure.
2107  * @vpd: pointer to the vital product data.
2108  * @len: length of the vital product data in bytes.
2109  *
2110  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2111  * an array of characters. In this routine, the ModelName, ProgramType, and
2112  * ModelDesc, etc. fields of the phba data structure will be populated.
2113  *
2114  * Return codes
2115  *   0 - pointer to the VPD passed in is NULL
2116  *   1 - success
2117  **/
2118 int
2119 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2120 {
2121         uint8_t lenlo, lenhi;
2122         int Length;
2123         int i, j;
2124         int finished = 0;
2125         int index = 0;
2126
2127         if (!vpd)
2128                 return 0;
2129
2130         /* Vital Product */
2131         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2132                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2133                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2134                         (uint32_t) vpd[3]);
2135         while (!finished && (index < (len - 4))) {
2136                 switch (vpd[index]) {
2137                 case 0x82:
2138                 case 0x91:
2139                         index += 1;
2140                         lenlo = vpd[index];
2141                         index += 1;
2142                         lenhi = vpd[index];
2143                         index += 1;
2144                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2145                         index += i;
2146                         break;
2147                 case 0x90:
2148                         index += 1;
2149                         lenlo = vpd[index];
2150                         index += 1;
2151                         lenhi = vpd[index];
2152                         index += 1;
2153                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2154                         if (Length > len - index)
2155                                 Length = len - index;
2156                         while (Length > 0) {
2157                         /* Look for Serial Number */
2158                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2159                                 index += 2;
2160                                 i = vpd[index];
2161                                 index += 1;
2162                                 j = 0;
2163                                 Length -= (3+i);
2164                                 while(i--) {
2165                                         phba->SerialNumber[j++] = vpd[index++];
2166                                         if (j == 31)
2167                                                 break;
2168                                 }
2169                                 phba->SerialNumber[j] = 0;
2170                                 continue;
2171                         }
2172                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2173                                 phba->vpd_flag |= VPD_MODEL_DESC;
2174                                 index += 2;
2175                                 i = vpd[index];
2176                                 index += 1;
2177                                 j = 0;
2178                                 Length -= (3+i);
2179                                 while(i--) {
2180                                         phba->ModelDesc[j++] = vpd[index++];
2181                                         if (j == 255)
2182                                                 break;
2183                                 }
2184                                 phba->ModelDesc[j] = 0;
2185                                 continue;
2186                         }
2187                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2188                                 phba->vpd_flag |= VPD_MODEL_NAME;
2189                                 index += 2;
2190                                 i = vpd[index];
2191                                 index += 1;
2192                                 j = 0;
2193                                 Length -= (3+i);
2194                                 while(i--) {
2195                                         phba->ModelName[j++] = vpd[index++];
2196                                         if (j == 79)
2197                                                 break;
2198                                 }
2199                                 phba->ModelName[j] = 0;
2200                                 continue;
2201                         }
2202                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2203                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2204                                 index += 2;
2205                                 i = vpd[index];
2206                                 index += 1;
2207                                 j = 0;
2208                                 Length -= (3+i);
2209                                 while(i--) {
2210                                         phba->ProgramType[j++] = vpd[index++];
2211                                         if (j == 255)
2212                                                 break;
2213                                 }
2214                                 phba->ProgramType[j] = 0;
2215                                 continue;
2216                         }
2217                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2218                                 phba->vpd_flag |= VPD_PORT;
2219                                 index += 2;
2220                                 i = vpd[index];
2221                                 index += 1;
2222                                 j = 0;
2223                                 Length -= (3+i);
2224                                 while(i--) {
2225                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2226                                             (phba->sli4_hba.pport_name_sta ==
2227                                              LPFC_SLI4_PPNAME_GET)) {
2228                                                 j++;
2229                                                 index++;
2230                                         } else
2231                                                 phba->Port[j++] = vpd[index++];
2232                                         if (j == 19)
2233                                                 break;
2234                                 }
2235                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2236                                     (phba->sli4_hba.pport_name_sta ==
2237                                      LPFC_SLI4_PPNAME_NON))
2238                                         phba->Port[j] = 0;
2239                                 continue;
2240                         }
2241                         else {
2242                                 index += 2;
2243                                 i = vpd[index];
2244                                 index += 1;
2245                                 index += i;
2246                                 Length -= (3 + i);
2247                         }
2248                 }
2249                 finished = 0;
2250                 break;
2251                 case 0x78:
2252                         finished = 1;
2253                         break;
2254                 default:
2255                         index ++;
2256                         break;
2257                 }
2258         }
2259
2260         return(1);
2261 }
2262
2263 /**
2264  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2265  * @phba: pointer to lpfc hba data structure.
2266  * @mdp: pointer to the data structure to hold the derived model name.
2267  * @descp: pointer to the data structure to hold the derived description.
2268  *
2269  * This routine retrieves HBA's description based on its registered PCI device
2270  * ID. The @descp passed into this function points to an array of 256 chars. It
2271  * shall be returned with the model name, maximum speed, and the host bus type.
2272  * The @mdp passed into this function points to an array of 80 chars. When the
2273  * function returns, the @mdp will be filled with the model name.
2274  **/
2275 static void
2276 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2277 {
2278         lpfc_vpd_t *vp;
2279         uint16_t dev_id = phba->pcidev->device;
2280         int max_speed;
2281         int GE = 0;
2282         int oneConnect = 0; /* default is not a oneConnect */
2283         struct {
2284                 char *name;
2285                 char *bus;
2286                 char *function;
2287         } m = {"<Unknown>", "", ""};
2288
2289         if (mdp && mdp[0] != '\0'
2290                 && descp && descp[0] != '\0')
2291                 return;
2292
2293         if (phba->lmt & LMT_64Gb)
2294                 max_speed = 64;
2295         else if (phba->lmt & LMT_32Gb)
2296                 max_speed = 32;
2297         else if (phba->lmt & LMT_16Gb)
2298                 max_speed = 16;
2299         else if (phba->lmt & LMT_10Gb)
2300                 max_speed = 10;
2301         else if (phba->lmt & LMT_8Gb)
2302                 max_speed = 8;
2303         else if (phba->lmt & LMT_4Gb)
2304                 max_speed = 4;
2305         else if (phba->lmt & LMT_2Gb)
2306                 max_speed = 2;
2307         else if (phba->lmt & LMT_1Gb)
2308                 max_speed = 1;
2309         else
2310                 max_speed = 0;
2311
2312         vp = &phba->vpd;
2313
2314         switch (dev_id) {
2315         case PCI_DEVICE_ID_FIREFLY:
2316                 m = (typeof(m)){"LP6000", "PCI",
2317                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2318                 break;
2319         case PCI_DEVICE_ID_SUPERFLY:
2320                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2321                         m = (typeof(m)){"LP7000", "PCI", ""};
2322                 else
2323                         m = (typeof(m)){"LP7000E", "PCI", ""};
2324                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2325                 break;
2326         case PCI_DEVICE_ID_DRAGONFLY:
2327                 m = (typeof(m)){"LP8000", "PCI",
2328                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2329                 break;
2330         case PCI_DEVICE_ID_CENTAUR:
2331                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2332                         m = (typeof(m)){"LP9002", "PCI", ""};
2333                 else
2334                         m = (typeof(m)){"LP9000", "PCI", ""};
2335                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2336                 break;
2337         case PCI_DEVICE_ID_RFLY:
2338                 m = (typeof(m)){"LP952", "PCI",
2339                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2340                 break;
2341         case PCI_DEVICE_ID_PEGASUS:
2342                 m = (typeof(m)){"LP9802", "PCI-X",
2343                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2344                 break;
2345         case PCI_DEVICE_ID_THOR:
2346                 m = (typeof(m)){"LP10000", "PCI-X",
2347                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2348                 break;
2349         case PCI_DEVICE_ID_VIPER:
2350                 m = (typeof(m)){"LPX1000",  "PCI-X",
2351                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2352                 break;
2353         case PCI_DEVICE_ID_PFLY:
2354                 m = (typeof(m)){"LP982", "PCI-X",
2355                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2356                 break;
2357         case PCI_DEVICE_ID_TFLY:
2358                 m = (typeof(m)){"LP1050", "PCI-X",
2359                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2360                 break;
2361         case PCI_DEVICE_ID_HELIOS:
2362                 m = (typeof(m)){"LP11000", "PCI-X2",
2363                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2364                 break;
2365         case PCI_DEVICE_ID_HELIOS_SCSP:
2366                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2367                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2368                 break;
2369         case PCI_DEVICE_ID_HELIOS_DCSP:
2370                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2371                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2372                 break;
2373         case PCI_DEVICE_ID_NEPTUNE:
2374                 m = (typeof(m)){"LPe1000", "PCIe",
2375                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2376                 break;
2377         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2378                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2379                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2380                 break;
2381         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2382                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2383                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2384                 break;
2385         case PCI_DEVICE_ID_BMID:
2386                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2387                 break;
2388         case PCI_DEVICE_ID_BSMB:
2389                 m = (typeof(m)){"LP111", "PCI-X2",
2390                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2391                 break;
2392         case PCI_DEVICE_ID_ZEPHYR:
2393                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2394                 break;
2395         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2396                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2397                 break;
2398         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2399                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2400                 GE = 1;
2401                 break;
2402         case PCI_DEVICE_ID_ZMID:
2403                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2404                 break;
2405         case PCI_DEVICE_ID_ZSMB:
2406                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2407                 break;
2408         case PCI_DEVICE_ID_LP101:
2409                 m = (typeof(m)){"LP101", "PCI-X",
2410                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2411                 break;
2412         case PCI_DEVICE_ID_LP10000S:
2413                 m = (typeof(m)){"LP10000-S", "PCI",
2414                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2415                 break;
2416         case PCI_DEVICE_ID_LP11000S:
2417                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2418                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2419                 break;
2420         case PCI_DEVICE_ID_LPE11000S:
2421                 m = (typeof(m)){"LPe11000-S", "PCIe",
2422                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2423                 break;
2424         case PCI_DEVICE_ID_SAT:
2425                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2426                 break;
2427         case PCI_DEVICE_ID_SAT_MID:
2428                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2429                 break;
2430         case PCI_DEVICE_ID_SAT_SMB:
2431                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2432                 break;
2433         case PCI_DEVICE_ID_SAT_DCSP:
2434                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2435                 break;
2436         case PCI_DEVICE_ID_SAT_SCSP:
2437                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2438                 break;
2439         case PCI_DEVICE_ID_SAT_S:
2440                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2441                 break;
2442         case PCI_DEVICE_ID_HORNET:
2443                 m = (typeof(m)){"LP21000", "PCIe",
2444                                 "Obsolete, Unsupported FCoE Adapter"};
2445                 GE = 1;
2446                 break;
2447         case PCI_DEVICE_ID_PROTEUS_VF:
2448                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2449                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2450                 break;
2451         case PCI_DEVICE_ID_PROTEUS_PF:
2452                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2453                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2454                 break;
2455         case PCI_DEVICE_ID_PROTEUS_S:
2456                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2457                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2458                 break;
2459         case PCI_DEVICE_ID_TIGERSHARK:
2460                 oneConnect = 1;
2461                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2462                 break;
2463         case PCI_DEVICE_ID_TOMCAT:
2464                 oneConnect = 1;
2465                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2466                 break;
2467         case PCI_DEVICE_ID_FALCON:
2468                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2469                                 "EmulexSecure Fibre"};
2470                 break;
2471         case PCI_DEVICE_ID_BALIUS:
2472                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2473                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2474                 break;
2475         case PCI_DEVICE_ID_LANCER_FC:
2476                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2477                 break;
2478         case PCI_DEVICE_ID_LANCER_FC_VF:
2479                 m = (typeof(m)){"LPe16000", "PCIe",
2480                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2481                 break;
2482         case PCI_DEVICE_ID_LANCER_FCOE:
2483                 oneConnect = 1;
2484                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2485                 break;
2486         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2487                 oneConnect = 1;
2488                 m = (typeof(m)){"OCe15100", "PCIe",
2489                                 "Obsolete, Unsupported FCoE"};
2490                 break;
2491         case PCI_DEVICE_ID_LANCER_G6_FC:
2492                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2493                 break;
2494         case PCI_DEVICE_ID_LANCER_G7_FC:
2495                 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2496                 break;
2497         case PCI_DEVICE_ID_SKYHAWK:
2498         case PCI_DEVICE_ID_SKYHAWK_VF:
2499                 oneConnect = 1;
2500                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2501                 break;
2502         default:
2503                 m = (typeof(m)){"Unknown", "", ""};
2504                 break;
2505         }
2506
2507         if (mdp && mdp[0] == '\0')
2508                 snprintf(mdp, 79,"%s", m.name);
2509         /*
2510          * oneConnect hba requires special processing, they are all initiators
2511          * and we put the port number on the end
2512          */
2513         if (descp && descp[0] == '\0') {
2514                 if (oneConnect)
2515                         snprintf(descp, 255,
2516                                 "Emulex OneConnect %s, %s Initiator %s",
2517                                 m.name, m.function,
2518                                 phba->Port);
2519                 else if (max_speed == 0)
2520                         snprintf(descp, 255,
2521                                 "Emulex %s %s %s",
2522                                 m.name, m.bus, m.function);
2523                 else
2524                         snprintf(descp, 255,
2525                                 "Emulex %s %d%s %s %s",
2526                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2527                                 m.bus, m.function);
2528         }
2529 }
2530
2531 /**
2532  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2533  * @phba: pointer to lpfc hba data structure.
2534  * @pring: pointer to a IOCB ring.
2535  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2536  *
2537  * This routine posts a given number of IOCBs with the associated DMA buffer
2538  * descriptors specified by the cnt argument to the given IOCB ring.
2539  *
2540  * Return codes
2541  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2542  **/
2543 int
2544 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2545 {
2546         IOCB_t *icmd;
2547         struct lpfc_iocbq *iocb;
2548         struct lpfc_dmabuf *mp1, *mp2;
2549
2550         cnt += pring->missbufcnt;
2551
2552         /* While there are buffers to post */
2553         while (cnt > 0) {
2554                 /* Allocate buffer for  command iocb */
2555                 iocb = lpfc_sli_get_iocbq(phba);
2556                 if (iocb == NULL) {
2557                         pring->missbufcnt = cnt;
2558                         return cnt;
2559                 }
2560                 icmd = &iocb->iocb;
2561
2562                 /* 2 buffers can be posted per command */
2563                 /* Allocate buffer to post */
2564                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2565                 if (mp1)
2566                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2567                 if (!mp1 || !mp1->virt) {
2568                         kfree(mp1);
2569                         lpfc_sli_release_iocbq(phba, iocb);
2570                         pring->missbufcnt = cnt;
2571                         return cnt;
2572                 }
2573
2574                 INIT_LIST_HEAD(&mp1->list);
2575                 /* Allocate buffer to post */
2576                 if (cnt > 1) {
2577                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2578                         if (mp2)
2579                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2580                                                             &mp2->phys);
2581                         if (!mp2 || !mp2->virt) {
2582                                 kfree(mp2);
2583                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2584                                 kfree(mp1);
2585                                 lpfc_sli_release_iocbq(phba, iocb);
2586                                 pring->missbufcnt = cnt;
2587                                 return cnt;
2588                         }
2589
2590                         INIT_LIST_HEAD(&mp2->list);
2591                 } else {
2592                         mp2 = NULL;
2593                 }
2594
2595                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2596                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2597                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2598                 icmd->ulpBdeCount = 1;
2599                 cnt--;
2600                 if (mp2) {
2601                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2602                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2603                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2604                         cnt--;
2605                         icmd->ulpBdeCount = 2;
2606                 }
2607
2608                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2609                 icmd->ulpLe = 1;
2610
2611                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2612                     IOCB_ERROR) {
2613                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2614                         kfree(mp1);
2615                         cnt++;
2616                         if (mp2) {
2617                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2618                                 kfree(mp2);
2619                                 cnt++;
2620                         }
2621                         lpfc_sli_release_iocbq(phba, iocb);
2622                         pring->missbufcnt = cnt;
2623                         return cnt;
2624                 }
2625                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2626                 if (mp2)
2627                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2628         }
2629         pring->missbufcnt = 0;
2630         return 0;
2631 }
2632
2633 /**
2634  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2635  * @phba: pointer to lpfc hba data structure.
2636  *
2637  * This routine posts initial receive IOCB buffers to the ELS ring. The
2638  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2639  * set to 64 IOCBs. SLI3 only.
2640  *
2641  * Return codes
2642  *   0 - success (currently always success)
2643  **/
2644 static int
2645 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2646 {
2647         struct lpfc_sli *psli = &phba->sli;
2648
2649         /* Ring 0, ELS / CT buffers */
2650         lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2651         /* Ring 2 - FCP no buffers needed */
2652
2653         return 0;
2654 }
2655
2656 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2657
2658 /**
2659  * lpfc_sha_init - Set up initial array of hash table entries
2660  * @HashResultPointer: pointer to an array as hash table.
2661  *
2662  * This routine sets up the initial values to the array of hash table entries
2663  * for the LC HBAs.
2664  **/
2665 static void
2666 lpfc_sha_init(uint32_t * HashResultPointer)
2667 {
2668         HashResultPointer[0] = 0x67452301;
2669         HashResultPointer[1] = 0xEFCDAB89;
2670         HashResultPointer[2] = 0x98BADCFE;
2671         HashResultPointer[3] = 0x10325476;
2672         HashResultPointer[4] = 0xC3D2E1F0;
2673 }
2674
2675 /**
2676  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2677  * @HashResultPointer: pointer to an initial/result hash table.
2678  * @HashWorkingPointer: pointer to an working hash table.
2679  *
2680  * This routine iterates an initial hash table pointed by @HashResultPointer
2681  * with the values from the working hash table pointeed by @HashWorkingPointer.
2682  * The results are putting back to the initial hash table, returned through
2683  * the @HashResultPointer as the result hash table.
2684  **/
2685 static void
2686 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2687 {
2688         int t;
2689         uint32_t TEMP;
2690         uint32_t A, B, C, D, E;
2691         t = 16;
2692         do {
2693                 HashWorkingPointer[t] =
2694                     S(1,
2695                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2696                                                                      8] ^
2697                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2698         } while (++t <= 79);
2699         t = 0;
2700         A = HashResultPointer[0];
2701         B = HashResultPointer[1];
2702         C = HashResultPointer[2];
2703         D = HashResultPointer[3];
2704         E = HashResultPointer[4];
2705
2706         do {
2707                 if (t < 20) {
2708                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2709                 } else if (t < 40) {
2710                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2711                 } else if (t < 60) {
2712                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2713                 } else {
2714                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2715                 }
2716                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2717                 E = D;
2718                 D = C;
2719                 C = S(30, B);
2720                 B = A;
2721                 A = TEMP;
2722         } while (++t <= 79);
2723
2724         HashResultPointer[0] += A;
2725         HashResultPointer[1] += B;
2726         HashResultPointer[2] += C;
2727         HashResultPointer[3] += D;
2728         HashResultPointer[4] += E;
2729
2730 }
2731
2732 /**
2733  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2734  * @RandomChallenge: pointer to the entry of host challenge random number array.
2735  * @HashWorking: pointer to the entry of the working hash array.
2736  *
2737  * This routine calculates the working hash array referred by @HashWorking
2738  * from the challenge random numbers associated with the host, referred by
2739  * @RandomChallenge. The result is put into the entry of the working hash
2740  * array and returned by reference through @HashWorking.
2741  **/
2742 static void
2743 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2744 {
2745         *HashWorking = (*RandomChallenge ^ *HashWorking);
2746 }
2747
2748 /**
2749  * lpfc_hba_init - Perform special handling for LC HBA initialization
2750  * @phba: pointer to lpfc hba data structure.
2751  * @hbainit: pointer to an array of unsigned 32-bit integers.
2752  *
2753  * This routine performs the special handling for LC HBA initialization.
2754  **/
2755 void
2756 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2757 {
2758         int t;
2759         uint32_t *HashWorking;
2760         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2761
2762         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2763         if (!HashWorking)
2764                 return;
2765
2766         HashWorking[0] = HashWorking[78] = *pwwnn++;
2767         HashWorking[1] = HashWorking[79] = *pwwnn;
2768
2769         for (t = 0; t < 7; t++)
2770                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2771
2772         lpfc_sha_init(hbainit);
2773         lpfc_sha_iterate(hbainit, HashWorking);
2774         kfree(HashWorking);
2775 }
2776
2777 /**
2778  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2779  * @vport: pointer to a virtual N_Port data structure.
2780  *
2781  * This routine performs the necessary cleanups before deleting the @vport.
2782  * It invokes the discovery state machine to perform necessary state
2783  * transitions and to release the ndlps associated with the @vport. Note,
2784  * the physical port is treated as @vport 0.
2785  **/
2786 void
2787 lpfc_cleanup(struct lpfc_vport *vport)
2788 {
2789         struct lpfc_hba   *phba = vport->phba;
2790         struct lpfc_nodelist *ndlp, *next_ndlp;
2791         int i = 0;
2792
2793         if (phba->link_state > LPFC_LINK_DOWN)
2794                 lpfc_port_link_failure(vport);
2795
2796         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2797                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2798                         ndlp = lpfc_enable_node(vport, ndlp,
2799                                                 NLP_STE_UNUSED_NODE);
2800                         if (!ndlp)
2801                                 continue;
2802                         spin_lock_irq(&phba->ndlp_lock);
2803                         NLP_SET_FREE_REQ(ndlp);
2804                         spin_unlock_irq(&phba->ndlp_lock);
2805                         /* Trigger the release of the ndlp memory */
2806                         lpfc_nlp_put(ndlp);
2807                         continue;
2808                 }
2809                 spin_lock_irq(&phba->ndlp_lock);
2810                 if (NLP_CHK_FREE_REQ(ndlp)) {
2811                         /* The ndlp should not be in memory free mode already */
2812                         spin_unlock_irq(&phba->ndlp_lock);
2813                         continue;
2814                 } else
2815                         /* Indicate request for freeing ndlp memory */
2816                         NLP_SET_FREE_REQ(ndlp);
2817                 spin_unlock_irq(&phba->ndlp_lock);
2818
2819                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2820                     ndlp->nlp_DID == Fabric_DID) {
2821                         /* Just free up ndlp with Fabric_DID for vports */
2822                         lpfc_nlp_put(ndlp);
2823                         continue;
2824                 }
2825
2826                 /* take care of nodes in unused state before the state
2827                  * machine taking action.
2828                  */
2829                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2830                         lpfc_nlp_put(ndlp);
2831                         continue;
2832                 }
2833
2834                 if (ndlp->nlp_type & NLP_FABRIC)
2835                         lpfc_disc_state_machine(vport, ndlp, NULL,
2836                                         NLP_EVT_DEVICE_RECOVERY);
2837
2838                 lpfc_disc_state_machine(vport, ndlp, NULL,
2839                                              NLP_EVT_DEVICE_RM);
2840         }
2841
2842         /* At this point, ALL ndlp's should be gone
2843          * because of the previous NLP_EVT_DEVICE_RM.
2844          * Lets wait for this to happen, if needed.
2845          */
2846         while (!list_empty(&vport->fc_nodes)) {
2847                 if (i++ > 3000) {
2848                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2849                                 "0233 Nodelist not empty\n");
2850                         list_for_each_entry_safe(ndlp, next_ndlp,
2851                                                 &vport->fc_nodes, nlp_listp) {
2852                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2853                                                 LOG_NODE,
2854                                                 "0282 did:x%x ndlp:x%p "
2855                                                 "usgmap:x%x refcnt:%d\n",
2856                                                 ndlp->nlp_DID, (void *)ndlp,
2857                                                 ndlp->nlp_usg_map,
2858                                                 kref_read(&ndlp->kref));
2859                         }
2860                         break;
2861                 }
2862
2863                 /* Wait for any activity on ndlps to settle */
2864                 msleep(10);
2865         }
2866         lpfc_cleanup_vports_rrqs(vport, NULL);
2867 }
2868
2869 /**
2870  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2871  * @vport: pointer to a virtual N_Port data structure.
2872  *
2873  * This routine stops all the timers associated with a @vport. This function
2874  * is invoked before disabling or deleting a @vport. Note that the physical
2875  * port is treated as @vport 0.
2876  **/
2877 void
2878 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2879 {
2880         del_timer_sync(&vport->els_tmofunc);
2881         del_timer_sync(&vport->delayed_disc_tmo);
2882         lpfc_can_disctmo(vport);
2883         return;
2884 }
2885
2886 /**
2887  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2888  * @phba: pointer to lpfc hba data structure.
2889  *
2890  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2891  * caller of this routine should already hold the host lock.
2892  **/
2893 void
2894 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2895 {
2896         /* Clear pending FCF rediscovery wait flag */
2897         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2898
2899         /* Now, try to stop the timer */
2900         del_timer(&phba->fcf.redisc_wait);
2901 }
2902
2903 /**
2904  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2905  * @phba: pointer to lpfc hba data structure.
2906  *
2907  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2908  * checks whether the FCF rediscovery wait timer is pending with the host
2909  * lock held before proceeding with disabling the timer and clearing the
2910  * wait timer pendig flag.
2911  **/
2912 void
2913 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2914 {
2915         spin_lock_irq(&phba->hbalock);
2916         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2917                 /* FCF rediscovery timer already fired or stopped */
2918                 spin_unlock_irq(&phba->hbalock);
2919                 return;
2920         }
2921         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2922         /* Clear failover in progress flags */
2923         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2924         spin_unlock_irq(&phba->hbalock);
2925 }
2926
2927 /**
2928  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2929  * @phba: pointer to lpfc hba data structure.
2930  *
2931  * This routine stops all the timers associated with a HBA. This function is
2932  * invoked before either putting a HBA offline or unloading the driver.
2933  **/
2934 void
2935 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2936 {
2937         lpfc_stop_vport_timers(phba->pport);
2938         del_timer_sync(&phba->sli.mbox_tmo);
2939         del_timer_sync(&phba->fabric_block_timer);
2940         del_timer_sync(&phba->eratt_poll);
2941         del_timer_sync(&phba->hb_tmofunc);
2942         if (phba->sli_rev == LPFC_SLI_REV4) {
2943                 del_timer_sync(&phba->rrq_tmr);
2944                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2945         }
2946         phba->hb_outstanding = 0;
2947
2948         switch (phba->pci_dev_grp) {
2949         case LPFC_PCI_DEV_LP:
2950                 /* Stop any LightPulse device specific driver timers */
2951                 del_timer_sync(&phba->fcp_poll_timer);
2952                 break;
2953         case LPFC_PCI_DEV_OC:
2954                 /* Stop any OneConnect device sepcific driver timers */
2955                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2956                 break;
2957         default:
2958                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2959                                 "0297 Invalid device group (x%x)\n",
2960                                 phba->pci_dev_grp);
2961                 break;
2962         }
2963         return;
2964 }
2965
2966 /**
2967  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2968  * @phba: pointer to lpfc hba data structure.
2969  *
2970  * This routine marks a HBA's management interface as blocked. Once the HBA's
2971  * management interface is marked as blocked, all the user space access to
2972  * the HBA, whether they are from sysfs interface or libdfc interface will
2973  * all be blocked. The HBA is set to block the management interface when the
2974  * driver prepares the HBA interface for online or offline.
2975  **/
2976 static void
2977 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2978 {
2979         unsigned long iflag;
2980         uint8_t actcmd = MBX_HEARTBEAT;
2981         unsigned long timeout;
2982
2983         spin_lock_irqsave(&phba->hbalock, iflag);
2984         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2985         spin_unlock_irqrestore(&phba->hbalock, iflag);
2986         if (mbx_action == LPFC_MBX_NO_WAIT)
2987                 return;
2988         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2989         spin_lock_irqsave(&phba->hbalock, iflag);
2990         if (phba->sli.mbox_active) {
2991                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2992                 /* Determine how long we might wait for the active mailbox
2993                  * command to be gracefully completed by firmware.
2994                  */
2995                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2996                                 phba->sli.mbox_active) * 1000) + jiffies;
2997         }
2998         spin_unlock_irqrestore(&phba->hbalock, iflag);
2999
3000         /* Wait for the outstnading mailbox command to complete */
3001         while (phba->sli.mbox_active) {
3002                 /* Check active mailbox complete status every 2ms */
3003                 msleep(2);
3004                 if (time_after(jiffies, timeout)) {
3005                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3006                                 "2813 Mgmt IO is Blocked %x "
3007                                 "- mbox cmd %x still active\n",
3008                                 phba->sli.sli_flag, actcmd);
3009                         break;
3010                 }
3011         }
3012 }
3013
3014 /**
3015  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3016  * @phba: pointer to lpfc hba data structure.
3017  *
3018  * Allocate RPIs for all active remote nodes. This is needed whenever
3019  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3020  * is to fixup the temporary rpi assignments.
3021  **/
3022 void
3023 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3024 {
3025         struct lpfc_nodelist  *ndlp, *next_ndlp;
3026         struct lpfc_vport **vports;
3027         int i, rpi;
3028         unsigned long flags;
3029
3030         if (phba->sli_rev != LPFC_SLI_REV4)
3031                 return;
3032
3033         vports = lpfc_create_vport_work_array(phba);
3034         if (vports == NULL)
3035                 return;
3036
3037         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3038                 if (vports[i]->load_flag & FC_UNLOADING)
3039                         continue;
3040
3041                 list_for_each_entry_safe(ndlp, next_ndlp,
3042                                          &vports[i]->fc_nodes,
3043                                          nlp_listp) {
3044                         if (!NLP_CHK_NODE_ACT(ndlp))
3045                                 continue;
3046                         rpi = lpfc_sli4_alloc_rpi(phba);
3047                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3048                                 spin_lock_irqsave(&phba->ndlp_lock, flags);
3049                                 NLP_CLR_NODE_ACT(ndlp);
3050                                 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3051                                 continue;
3052                         }
3053                         ndlp->nlp_rpi = rpi;
3054                         lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3055                                          "0009 rpi:%x DID:%x "
3056                                          "flg:%x map:%x %p\n", ndlp->nlp_rpi,
3057                                          ndlp->nlp_DID, ndlp->nlp_flag,
3058                                          ndlp->nlp_usg_map, ndlp);
3059                 }
3060         }
3061         lpfc_destroy_vport_work_array(phba, vports);
3062 }
3063
3064 /**
3065  * lpfc_online - Initialize and bring a HBA online
3066  * @phba: pointer to lpfc hba data structure.
3067  *
3068  * This routine initializes the HBA and brings a HBA online. During this
3069  * process, the management interface is blocked to prevent user space access
3070  * to the HBA interfering with the driver initialization.
3071  *
3072  * Return codes
3073  *   0 - successful
3074  *   1 - failed
3075  **/
3076 int
3077 lpfc_online(struct lpfc_hba *phba)
3078 {
3079         struct lpfc_vport *vport;
3080         struct lpfc_vport **vports;
3081         int i, error = 0;
3082         bool vpis_cleared = false;
3083
3084         if (!phba)
3085                 return 0;
3086         vport = phba->pport;
3087
3088         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3089                 return 0;
3090
3091         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3092                         "0458 Bring Adapter online\n");
3093
3094         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3095
3096         if (phba->sli_rev == LPFC_SLI_REV4) {
3097                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3098                         lpfc_unblock_mgmt_io(phba);
3099                         return 1;
3100                 }
3101                 spin_lock_irq(&phba->hbalock);
3102                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3103                         vpis_cleared = true;
3104                 spin_unlock_irq(&phba->hbalock);
3105
3106                 /* Reestablish the local initiator port.
3107                  * The offline process destroyed the previous lport.
3108                  */
3109                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3110                                 !phba->nvmet_support) {
3111                         error = lpfc_nvme_create_localport(phba->pport);
3112                         if (error)
3113                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3114                                         "6132 NVME restore reg failed "
3115                                         "on nvmei error x%x\n", error);
3116                 }
3117         } else {
3118                 lpfc_sli_queue_init(phba);
3119                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3120                         lpfc_unblock_mgmt_io(phba);
3121                         return 1;
3122                 }
3123         }
3124
3125         vports = lpfc_create_vport_work_array(phba);
3126         if (vports != NULL) {
3127                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3128                         struct Scsi_Host *shost;
3129                         shost = lpfc_shost_from_vport(vports[i]);
3130                         spin_lock_irq(shost->host_lock);
3131                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3132                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3133                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3134                         if (phba->sli_rev == LPFC_SLI_REV4) {
3135                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3136                                 if ((vpis_cleared) &&
3137                                     (vports[i]->port_type !=
3138                                         LPFC_PHYSICAL_PORT))
3139                                         vports[i]->vpi = 0;
3140                         }
3141                         spin_unlock_irq(shost->host_lock);
3142                 }
3143         }
3144         lpfc_destroy_vport_work_array(phba, vports);
3145
3146         lpfc_unblock_mgmt_io(phba);
3147         return 0;
3148 }
3149
3150 /**
3151  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3152  * @phba: pointer to lpfc hba data structure.
3153  *
3154  * This routine marks a HBA's management interface as not blocked. Once the
3155  * HBA's management interface is marked as not blocked, all the user space
3156  * access to the HBA, whether they are from sysfs interface or libdfc
3157  * interface will be allowed. The HBA is set to block the management interface
3158  * when the driver prepares the HBA interface for online or offline and then
3159  * set to unblock the management interface afterwards.
3160  **/
3161 void
3162 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3163 {
3164         unsigned long iflag;
3165
3166         spin_lock_irqsave(&phba->hbalock, iflag);
3167         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3168         spin_unlock_irqrestore(&phba->hbalock, iflag);
3169 }
3170
3171 /**
3172  * lpfc_offline_prep - Prepare a HBA to be brought offline
3173  * @phba: pointer to lpfc hba data structure.
3174  *
3175  * This routine is invoked to prepare a HBA to be brought offline. It performs
3176  * unregistration login to all the nodes on all vports and flushes the mailbox
3177  * queue to make it ready to be brought offline.
3178  **/
3179 void
3180 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3181 {
3182         struct lpfc_vport *vport = phba->pport;
3183         struct lpfc_nodelist  *ndlp, *next_ndlp;
3184         struct lpfc_vport **vports;
3185         struct Scsi_Host *shost;
3186         int i;
3187
3188         if (vport->fc_flag & FC_OFFLINE_MODE)
3189                 return;
3190
3191         lpfc_block_mgmt_io(phba, mbx_action);
3192
3193         lpfc_linkdown(phba);
3194
3195         /* Issue an unreg_login to all nodes on all vports */
3196         vports = lpfc_create_vport_work_array(phba);
3197         if (vports != NULL) {
3198                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3199                         if (vports[i]->load_flag & FC_UNLOADING)
3200                                 continue;
3201                         shost = lpfc_shost_from_vport(vports[i]);
3202                         spin_lock_irq(shost->host_lock);
3203                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3204                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3205                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3206                         spin_unlock_irq(shost->host_lock);
3207
3208                         shost = lpfc_shost_from_vport(vports[i]);
3209                         list_for_each_entry_safe(ndlp, next_ndlp,
3210                                                  &vports[i]->fc_nodes,
3211                                                  nlp_listp) {
3212                                 if (!NLP_CHK_NODE_ACT(ndlp))
3213                                         continue;
3214                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3215                                         continue;
3216                                 if (ndlp->nlp_type & NLP_FABRIC) {
3217                                         lpfc_disc_state_machine(vports[i], ndlp,
3218                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3219                                         lpfc_disc_state_machine(vports[i], ndlp,
3220                                                 NULL, NLP_EVT_DEVICE_RM);
3221                                 }
3222                                 spin_lock_irq(shost->host_lock);
3223                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3224                                 spin_unlock_irq(shost->host_lock);
3225                                 /*
3226                                  * Whenever an SLI4 port goes offline, free the
3227                                  * RPI. Get a new RPI when the adapter port
3228                                  * comes back online.
3229                                  */
3230                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3231                                         lpfc_printf_vlog(ndlp->vport,
3232                                                          KERN_INFO, LOG_NODE,
3233                                                          "0011 lpfc_offline: "
3234                                                          "ndlp:x%p did %x "
3235                                                          "usgmap:x%x rpi:%x\n",
3236                                                          ndlp, ndlp->nlp_DID,
3237                                                          ndlp->nlp_usg_map,
3238                                                          ndlp->nlp_rpi);
3239
3240                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3241                                 }
3242                                 lpfc_unreg_rpi(vports[i], ndlp);
3243                         }
3244                 }
3245         }
3246         lpfc_destroy_vport_work_array(phba, vports);
3247
3248         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3249
3250         if (phba->wq)
3251                 flush_workqueue(phba->wq);
3252 }
3253
3254 /**
3255  * lpfc_offline - Bring a HBA offline
3256  * @phba: pointer to lpfc hba data structure.
3257  *
3258  * This routine actually brings a HBA offline. It stops all the timers
3259  * associated with the HBA, brings down the SLI layer, and eventually
3260  * marks the HBA as in offline state for the upper layer protocol.
3261  **/
3262 void
3263 lpfc_offline(struct lpfc_hba *phba)
3264 {
3265         struct Scsi_Host  *shost;
3266         struct lpfc_vport **vports;
3267         int i;
3268
3269         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3270                 return;
3271
3272         /* stop port and all timers associated with this hba */
3273         lpfc_stop_port(phba);
3274
3275         /* Tear down the local and target port registrations.  The
3276          * nvme transports need to cleanup.
3277          */
3278         lpfc_nvmet_destroy_targetport(phba);
3279         lpfc_nvme_destroy_localport(phba->pport);
3280
3281         vports = lpfc_create_vport_work_array(phba);
3282         if (vports != NULL)
3283                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3284                         lpfc_stop_vport_timers(vports[i]);
3285         lpfc_destroy_vport_work_array(phba, vports);
3286         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3287                         "0460 Bring Adapter offline\n");
3288         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3289            now.  */
3290         lpfc_sli_hba_down(phba);
3291         spin_lock_irq(&phba->hbalock);
3292         phba->work_ha = 0;
3293         spin_unlock_irq(&phba->hbalock);
3294         vports = lpfc_create_vport_work_array(phba);
3295         if (vports != NULL)
3296                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3297                         shost = lpfc_shost_from_vport(vports[i]);
3298                         spin_lock_irq(shost->host_lock);
3299                         vports[i]->work_port_events = 0;
3300                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3301                         spin_unlock_irq(shost->host_lock);
3302                 }
3303         lpfc_destroy_vport_work_array(phba, vports);
3304 }
3305
3306 /**
3307  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3308  * @phba: pointer to lpfc hba data structure.
3309  *
3310  * This routine is to free all the SCSI buffers and IOCBs from the driver
3311  * list back to kernel. It is called from lpfc_pci_remove_one to free
3312  * the internal resources before the device is removed from the system.
3313  **/
3314 static void
3315 lpfc_scsi_free(struct lpfc_hba *phba)
3316 {
3317         struct lpfc_scsi_buf *sb, *sb_next;
3318
3319         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3320                 return;
3321
3322         spin_lock_irq(&phba->hbalock);
3323
3324         /* Release all the lpfc_scsi_bufs maintained by this host. */
3325
3326         spin_lock(&phba->scsi_buf_list_put_lock);
3327         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3328                                  list) {
3329                 list_del(&sb->list);
3330                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3331                               sb->dma_handle);
3332                 kfree(sb);
3333                 phba->total_scsi_bufs--;
3334         }
3335         spin_unlock(&phba->scsi_buf_list_put_lock);
3336
3337         spin_lock(&phba->scsi_buf_list_get_lock);
3338         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3339                                  list) {
3340                 list_del(&sb->list);
3341                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3342                               sb->dma_handle);
3343                 kfree(sb);
3344                 phba->total_scsi_bufs--;
3345         }
3346         spin_unlock(&phba->scsi_buf_list_get_lock);
3347         spin_unlock_irq(&phba->hbalock);
3348 }
3349 /**
3350  * lpfc_nvme_free - Free all the NVME buffers and IOCBs from driver lists
3351  * @phba: pointer to lpfc hba data structure.
3352  *
3353  * This routine is to free all the NVME buffers and IOCBs from the driver
3354  * list back to kernel. It is called from lpfc_pci_remove_one to free
3355  * the internal resources before the device is removed from the system.
3356  **/
3357 static void
3358 lpfc_nvme_free(struct lpfc_hba *phba)
3359 {
3360         struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next;
3361
3362         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3363                 return;
3364
3365         spin_lock_irq(&phba->hbalock);
3366
3367         /* Release all the lpfc_nvme_bufs maintained by this host. */
3368         spin_lock(&phba->nvme_buf_list_put_lock);
3369         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3370                                  &phba->lpfc_nvme_buf_list_put, list) {
3371                 list_del(&lpfc_ncmd->list);
3372                 phba->put_nvme_bufs--;
3373                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3374                               lpfc_ncmd->dma_handle);
3375                 kfree(lpfc_ncmd);
3376                 phba->total_nvme_bufs--;
3377         }
3378         spin_unlock(&phba->nvme_buf_list_put_lock);
3379
3380         spin_lock(&phba->nvme_buf_list_get_lock);
3381         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3382                                  &phba->lpfc_nvme_buf_list_get, list) {
3383                 list_del(&lpfc_ncmd->list);
3384                 phba->get_nvme_bufs--;
3385                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3386                               lpfc_ncmd->dma_handle);
3387                 kfree(lpfc_ncmd);
3388                 phba->total_nvme_bufs--;
3389         }
3390         spin_unlock(&phba->nvme_buf_list_get_lock);
3391         spin_unlock_irq(&phba->hbalock);
3392 }
3393 /**
3394  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3395  * @phba: pointer to lpfc hba data structure.
3396  *
3397  * This routine first calculates the sizes of the current els and allocated
3398  * scsi sgl lists, and then goes through all sgls to updates the physical
3399  * XRIs assigned due to port function reset. During port initialization, the
3400  * current els and allocated scsi sgl lists are 0s.
3401  *
3402  * Return codes
3403  *   0 - successful (for now, it always returns 0)
3404  **/
3405 int
3406 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3407 {
3408         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3409         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3410         LIST_HEAD(els_sgl_list);
3411         int rc;
3412
3413         /*
3414          * update on pci function's els xri-sgl list
3415          */
3416         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3417
3418         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3419                 /* els xri-sgl expanded */
3420                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3421                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3422                                 "3157 ELS xri-sgl count increased from "
3423                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3424                                 els_xri_cnt);
3425                 /* allocate the additional els sgls */
3426                 for (i = 0; i < xri_cnt; i++) {
3427                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3428                                              GFP_KERNEL);
3429                         if (sglq_entry == NULL) {
3430                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3431                                                 "2562 Failure to allocate an "
3432                                                 "ELS sgl entry:%d\n", i);
3433                                 rc = -ENOMEM;
3434                                 goto out_free_mem;
3435                         }
3436                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3437                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3438                                                            &sglq_entry->phys);
3439                         if (sglq_entry->virt == NULL) {
3440                                 kfree(sglq_entry);
3441                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3442                                                 "2563 Failure to allocate an "
3443                                                 "ELS mbuf:%d\n", i);
3444                                 rc = -ENOMEM;
3445                                 goto out_free_mem;
3446                         }
3447                         sglq_entry->sgl = sglq_entry->virt;
3448                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3449                         sglq_entry->state = SGL_FREED;
3450                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3451                 }
3452                 spin_lock_irq(&phba->hbalock);
3453                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3454                 list_splice_init(&els_sgl_list,
3455                                  &phba->sli4_hba.lpfc_els_sgl_list);
3456                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3457                 spin_unlock_irq(&phba->hbalock);
3458         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3459                 /* els xri-sgl shrinked */
3460                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3461                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3462                                 "3158 ELS xri-sgl count decreased from "
3463                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3464                                 els_xri_cnt);
3465                 spin_lock_irq(&phba->hbalock);
3466                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3467                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3468                                  &els_sgl_list);
3469                 /* release extra els sgls from list */
3470                 for (i = 0; i < xri_cnt; i++) {
3471                         list_remove_head(&els_sgl_list,
3472                                          sglq_entry, struct lpfc_sglq, list);
3473                         if (sglq_entry) {
3474                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
3475                                                  sglq_entry->phys);
3476                                 kfree(sglq_entry);
3477                         }
3478                 }
3479                 list_splice_init(&els_sgl_list,
3480                                  &phba->sli4_hba.lpfc_els_sgl_list);
3481                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3482                 spin_unlock_irq(&phba->hbalock);
3483         } else
3484                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3485                                 "3163 ELS xri-sgl count unchanged: %d\n",
3486                                 els_xri_cnt);
3487         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3488
3489         /* update xris to els sgls on the list */
3490         sglq_entry = NULL;
3491         sglq_entry_next = NULL;
3492         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3493                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
3494                 lxri = lpfc_sli4_next_xritag(phba);
3495                 if (lxri == NO_XRI) {
3496                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3497                                         "2400 Failed to allocate xri for "
3498                                         "ELS sgl\n");
3499                         rc = -ENOMEM;
3500                         goto out_free_mem;
3501                 }
3502                 sglq_entry->sli4_lxritag = lxri;
3503                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3504         }
3505         return 0;
3506
3507 out_free_mem:
3508         lpfc_free_els_sgl_list(phba);
3509         return rc;
3510 }
3511
3512 /**
3513  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3514  * @phba: pointer to lpfc hba data structure.
3515  *
3516  * This routine first calculates the sizes of the current els and allocated
3517  * scsi sgl lists, and then goes through all sgls to updates the physical
3518  * XRIs assigned due to port function reset. During port initialization, the
3519  * current els and allocated scsi sgl lists are 0s.
3520  *
3521  * Return codes
3522  *   0 - successful (for now, it always returns 0)
3523  **/
3524 int
3525 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3526 {
3527         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3528         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3529         uint16_t nvmet_xri_cnt;
3530         LIST_HEAD(nvmet_sgl_list);
3531         int rc;
3532
3533         /*
3534          * update on pci function's nvmet xri-sgl list
3535          */
3536         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3537
3538         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3539         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3540         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3541                 /* els xri-sgl expanded */
3542                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3543                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3544                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3545                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3546                 /* allocate the additional nvmet sgls */
3547                 for (i = 0; i < xri_cnt; i++) {
3548                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3549                                              GFP_KERNEL);
3550                         if (sglq_entry == NULL) {
3551                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3552                                                 "6303 Failure to allocate an "
3553                                                 "NVMET sgl entry:%d\n", i);
3554                                 rc = -ENOMEM;
3555                                 goto out_free_mem;
3556                         }
3557                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
3558                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3559                                                            &sglq_entry->phys);
3560                         if (sglq_entry->virt == NULL) {
3561                                 kfree(sglq_entry);
3562                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3563                                                 "6304 Failure to allocate an "
3564                                                 "NVMET buf:%d\n", i);
3565                                 rc = -ENOMEM;
3566                                 goto out_free_mem;
3567                         }
3568                         sglq_entry->sgl = sglq_entry->virt;
3569                         memset(sglq_entry->sgl, 0,
3570                                phba->cfg_sg_dma_buf_size);
3571                         sglq_entry->state = SGL_FREED;
3572                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3573                 }
3574                 spin_lock_irq(&phba->hbalock);
3575                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3576                 list_splice_init(&nvmet_sgl_list,
3577                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3578                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3579                 spin_unlock_irq(&phba->hbalock);
3580         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3581                 /* nvmet xri-sgl shrunk */
3582                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3583                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3584                                 "6305 NVMET xri-sgl count decreased from "
3585                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3586                                 nvmet_xri_cnt);
3587                 spin_lock_irq(&phba->hbalock);
3588                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3589                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3590                                  &nvmet_sgl_list);
3591                 /* release extra nvmet sgls from list */
3592                 for (i = 0; i < xri_cnt; i++) {
3593                         list_remove_head(&nvmet_sgl_list,
3594                                          sglq_entry, struct lpfc_sglq, list);
3595                         if (sglq_entry) {
3596                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3597                                                     sglq_entry->phys);
3598                                 kfree(sglq_entry);
3599                         }
3600                 }
3601                 list_splice_init(&nvmet_sgl_list,
3602                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3603                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3604                 spin_unlock_irq(&phba->hbalock);
3605         } else
3606                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3607                                 "6306 NVMET xri-sgl count unchanged: %d\n",
3608                                 nvmet_xri_cnt);
3609         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3610
3611         /* update xris to nvmet sgls on the list */
3612         sglq_entry = NULL;
3613         sglq_entry_next = NULL;
3614         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3615                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3616                 lxri = lpfc_sli4_next_xritag(phba);
3617                 if (lxri == NO_XRI) {
3618                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3619                                         "6307 Failed to allocate xri for "
3620                                         "NVMET sgl\n");
3621                         rc = -ENOMEM;
3622                         goto out_free_mem;
3623                 }
3624                 sglq_entry->sli4_lxritag = lxri;
3625                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3626         }
3627         return 0;
3628
3629 out_free_mem:
3630         lpfc_free_nvmet_sgl_list(phba);
3631         return rc;
3632 }
3633
3634 /**
3635  * lpfc_sli4_scsi_sgl_update - update xri-sgl sizing and mapping
3636  * @phba: pointer to lpfc hba data structure.
3637  *
3638  * This routine first calculates the sizes of the current els and allocated
3639  * scsi sgl lists, and then goes through all sgls to updates the physical
3640  * XRIs assigned due to port function reset. During port initialization, the
3641  * current els and allocated scsi sgl lists are 0s.
3642  *
3643  * Return codes
3644  *   0 - successful (for now, it always returns 0)
3645  **/
3646 int
3647 lpfc_sli4_scsi_sgl_update(struct lpfc_hba *phba)
3648 {
3649         struct lpfc_scsi_buf *psb, *psb_next;
3650         uint16_t i, lxri, els_xri_cnt, scsi_xri_cnt;
3651         LIST_HEAD(scsi_sgl_list);
3652         int rc;
3653
3654         /*
3655          * update on pci function's els xri-sgl list
3656          */
3657         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3658         phba->total_scsi_bufs = 0;
3659
3660         /*
3661          * update on pci function's allocated scsi xri-sgl list
3662          */
3663         /* maximum number of xris available for scsi buffers */
3664         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3665                                       els_xri_cnt;
3666
3667         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3668                 return 0;
3669
3670         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3671                 phba->sli4_hba.scsi_xri_max =  /* Split them up */
3672                         (phba->sli4_hba.scsi_xri_max *
3673                          phba->cfg_xri_split) / 100;
3674
3675         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3676         spin_lock(&phba->scsi_buf_list_put_lock);
3677         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3678         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3679         spin_unlock(&phba->scsi_buf_list_put_lock);
3680         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3681
3682         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3683                         "6060 Current allocated SCSI xri-sgl count:%d, "
3684                         "maximum  SCSI xri count:%d (split:%d)\n",
3685                         phba->sli4_hba.scsi_xri_cnt,
3686                         phba->sli4_hba.scsi_xri_max, phba->cfg_xri_split);
3687
3688         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3689                 /* max scsi xri shrinked below the allocated scsi buffers */
3690                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3691                                         phba->sli4_hba.scsi_xri_max;
3692                 /* release the extra allocated scsi buffers */
3693                 for (i = 0; i < scsi_xri_cnt; i++) {
3694                         list_remove_head(&scsi_sgl_list, psb,
3695                                          struct lpfc_scsi_buf, list);
3696                         if (psb) {
3697                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3698                                               psb->data, psb->dma_handle);
3699                                 kfree(psb);
3700                         }
3701                 }
3702                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3703                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3704                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3705         }
3706
3707         /* update xris associated to remaining allocated scsi buffers */
3708         psb = NULL;
3709         psb_next = NULL;
3710         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3711                 lxri = lpfc_sli4_next_xritag(phba);
3712                 if (lxri == NO_XRI) {
3713                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3714                                         "2560 Failed to allocate xri for "
3715                                         "scsi buffer\n");
3716                         rc = -ENOMEM;
3717                         goto out_free_mem;
3718                 }
3719                 psb->cur_iocbq.sli4_lxritag = lxri;
3720                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3721         }
3722         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3723         spin_lock(&phba->scsi_buf_list_put_lock);
3724         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3725         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3726         spin_unlock(&phba->scsi_buf_list_put_lock);
3727         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3728         return 0;
3729
3730 out_free_mem:
3731         lpfc_scsi_free(phba);
3732         return rc;
3733 }
3734
3735 static uint64_t
3736 lpfc_get_wwpn(struct lpfc_hba *phba)
3737 {
3738         uint64_t wwn;
3739         int rc;
3740         LPFC_MBOXQ_t *mboxq;
3741         MAILBOX_t *mb;
3742
3743         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
3744                                                 GFP_KERNEL);
3745         if (!mboxq)
3746                 return (uint64_t)-1;
3747
3748         /* First get WWN of HBA instance */
3749         lpfc_read_nv(phba, mboxq);
3750         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
3751         if (rc != MBX_SUCCESS) {
3752                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3753                                 "6019 Mailbox failed , mbxCmd x%x "
3754                                 "READ_NV, mbxStatus x%x\n",
3755                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
3756                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
3757                 mempool_free(mboxq, phba->mbox_mem_pool);
3758                 return (uint64_t) -1;
3759         }
3760         mb = &mboxq->u.mb;
3761         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
3762         /* wwn is WWPN of HBA instance */
3763         mempool_free(mboxq, phba->mbox_mem_pool);
3764         if (phba->sli_rev == LPFC_SLI_REV4)
3765                 return be64_to_cpu(wwn);
3766         else
3767                 return rol64(wwn, 32);
3768 }
3769
3770 /**
3771  * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping
3772  * @phba: pointer to lpfc hba data structure.
3773  *
3774  * This routine first calculates the sizes of the current els and allocated
3775  * scsi sgl lists, and then goes through all sgls to updates the physical
3776  * XRIs assigned due to port function reset. During port initialization, the
3777  * current els and allocated scsi sgl lists are 0s.
3778  *
3779  * Return codes
3780  *   0 - successful (for now, it always returns 0)
3781  **/
3782 int
3783 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba)
3784 {
3785         struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
3786         uint16_t i, lxri, els_xri_cnt;
3787         uint16_t nvme_xri_cnt, nvme_xri_max;
3788         LIST_HEAD(nvme_sgl_list);
3789         int rc, cnt;
3790
3791         phba->total_nvme_bufs = 0;
3792         phba->get_nvme_bufs = 0;
3793         phba->put_nvme_bufs = 0;
3794
3795         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3796                 return 0;
3797         /*
3798          * update on pci function's allocated nvme xri-sgl list
3799          */
3800
3801         /* maximum number of xris available for nvme buffers */
3802         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3803         nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3804         phba->sli4_hba.nvme_xri_max = nvme_xri_max;
3805         phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max;
3806
3807         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3808                         "6074 Current allocated NVME xri-sgl count:%d, "
3809                         "maximum  NVME xri count:%d\n",
3810                         phba->sli4_hba.nvme_xri_cnt,
3811                         phba->sli4_hba.nvme_xri_max);
3812
3813         spin_lock_irq(&phba->nvme_buf_list_get_lock);
3814         spin_lock(&phba->nvme_buf_list_put_lock);
3815         list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list);
3816         list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list);
3817         cnt = phba->get_nvme_bufs + phba->put_nvme_bufs;
3818         phba->get_nvme_bufs = 0;
3819         phba->put_nvme_bufs = 0;
3820         spin_unlock(&phba->nvme_buf_list_put_lock);
3821         spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3822
3823         if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) {
3824                 /* max nvme xri shrunk below the allocated nvme buffers */
3825                 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3826                 nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt -
3827                                         phba->sli4_hba.nvme_xri_max;
3828                 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3829                 /* release the extra allocated nvme buffers */
3830                 for (i = 0; i < nvme_xri_cnt; i++) {
3831                         list_remove_head(&nvme_sgl_list, lpfc_ncmd,
3832                                          struct lpfc_nvme_buf, list);
3833                         if (lpfc_ncmd) {
3834                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3835                                               lpfc_ncmd->data,
3836                                               lpfc_ncmd->dma_handle);
3837                                 kfree(lpfc_ncmd);
3838                         }
3839                 }
3840                 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3841                 phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt;
3842                 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3843         }
3844
3845         /* update xris associated to remaining allocated nvme buffers */
3846         lpfc_ncmd = NULL;
3847         lpfc_ncmd_next = NULL;
3848         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3849                                  &nvme_sgl_list, list) {
3850                 lxri = lpfc_sli4_next_xritag(phba);
3851                 if (lxri == NO_XRI) {
3852                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3853                                         "6075 Failed to allocate xri for "
3854                                         "nvme buffer\n");
3855                         rc = -ENOMEM;
3856                         goto out_free_mem;
3857                 }
3858                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
3859                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3860         }
3861         spin_lock_irq(&phba->nvme_buf_list_get_lock);
3862         spin_lock(&phba->nvme_buf_list_put_lock);
3863         list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get);
3864         phba->get_nvme_bufs = cnt;
3865         INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
3866         spin_unlock(&phba->nvme_buf_list_put_lock);
3867         spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3868         return 0;
3869
3870 out_free_mem:
3871         lpfc_nvme_free(phba);
3872         return rc;
3873 }
3874
3875 /**
3876  * lpfc_create_port - Create an FC port
3877  * @phba: pointer to lpfc hba data structure.
3878  * @instance: a unique integer ID to this FC port.
3879  * @dev: pointer to the device data structure.
3880  *
3881  * This routine creates a FC port for the upper layer protocol. The FC port
3882  * can be created on top of either a physical port or a virtual port provided
3883  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3884  * and associates the FC port created before adding the shost into the SCSI
3885  * layer.
3886  *
3887  * Return codes
3888  *   @vport - pointer to the virtual N_Port data structure.
3889  *   NULL - port create failed.
3890  **/
3891 struct lpfc_vport *
3892 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3893 {
3894         struct lpfc_vport *vport;
3895         struct Scsi_Host  *shost = NULL;
3896         int error = 0;
3897         int i;
3898         uint64_t wwn;
3899         bool use_no_reset_hba = false;
3900         int rc;
3901
3902         if (lpfc_no_hba_reset_cnt) {
3903                 if (phba->sli_rev < LPFC_SLI_REV4 &&
3904                     dev == &phba->pcidev->dev) {
3905                         /* Reset the port first */
3906                         lpfc_sli_brdrestart(phba);
3907                         rc = lpfc_sli_chipset_init(phba);
3908                         if (rc)
3909                                 return NULL;
3910                 }
3911                 wwn = lpfc_get_wwpn(phba);
3912         }
3913
3914         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
3915                 if (wwn == lpfc_no_hba_reset[i]) {
3916                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3917                                         "6020 Setting use_no_reset port=%llx\n",
3918                                         wwn);
3919                         use_no_reset_hba = true;
3920                         break;
3921                 }
3922         }
3923
3924         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
3925                 if (dev != &phba->pcidev->dev) {
3926                         shost = scsi_host_alloc(&lpfc_vport_template,
3927                                                 sizeof(struct lpfc_vport));
3928                 } else {
3929                         if (!use_no_reset_hba)
3930                                 shost = scsi_host_alloc(&lpfc_template,
3931                                                 sizeof(struct lpfc_vport));
3932                         else
3933                                 shost = scsi_host_alloc(&lpfc_template_no_hr,
3934                                                 sizeof(struct lpfc_vport));
3935                 }
3936         } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
3937                 shost = scsi_host_alloc(&lpfc_template_nvme,
3938                                         sizeof(struct lpfc_vport));
3939         }
3940         if (!shost)
3941                 goto out;
3942
3943         vport = (struct lpfc_vport *) shost->hostdata;
3944         vport->phba = phba;
3945         vport->load_flag |= FC_LOADING;
3946         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3947         vport->fc_rscn_flush = 0;
3948         lpfc_get_vport_cfgparam(vport);
3949
3950         shost->unique_id = instance;
3951         shost->max_id = LPFC_MAX_TARGET;
3952         shost->max_lun = vport->cfg_max_luns;
3953         shost->this_id = -1;
3954         shost->max_cmd_len = 16;
3955         shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3956         if (phba->sli_rev == LPFC_SLI_REV4) {
3957                 shost->dma_boundary =
3958                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3959                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3960         }
3961
3962         /*
3963          * Set initial can_queue value since 0 is no longer supported and
3964          * scsi_add_host will fail. This will be adjusted later based on the
3965          * max xri value determined in hba setup.
3966          */
3967         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3968         if (dev != &phba->pcidev->dev) {
3969                 shost->transportt = lpfc_vport_transport_template;
3970                 vport->port_type = LPFC_NPIV_PORT;
3971         } else {
3972                 shost->transportt = lpfc_transport_template;
3973                 vport->port_type = LPFC_PHYSICAL_PORT;
3974         }
3975
3976         /* Initialize all internally managed lists. */
3977         INIT_LIST_HEAD(&vport->fc_nodes);
3978         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3979         spin_lock_init(&vport->work_port_lock);
3980
3981         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
3982
3983         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
3984
3985         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
3986
3987         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3988         if (error)
3989                 goto out_put_shost;
3990
3991         spin_lock_irq(&phba->hbalock);
3992         list_add_tail(&vport->listentry, &phba->port_list);
3993         spin_unlock_irq(&phba->hbalock);
3994         return vport;
3995
3996 out_put_shost:
3997         scsi_host_put(shost);
3998 out:
3999         return NULL;
4000 }
4001
4002 /**
4003  * destroy_port -  destroy an FC port
4004  * @vport: pointer to an lpfc virtual N_Port data structure.
4005  *
4006  * This routine destroys a FC port from the upper layer protocol. All the
4007  * resources associated with the port are released.
4008  **/
4009 void
4010 destroy_port(struct lpfc_vport *vport)
4011 {
4012         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4013         struct lpfc_hba  *phba = vport->phba;
4014
4015         lpfc_debugfs_terminate(vport);
4016         fc_remove_host(shost);
4017         scsi_remove_host(shost);
4018
4019         spin_lock_irq(&phba->hbalock);
4020         list_del_init(&vport->listentry);
4021         spin_unlock_irq(&phba->hbalock);
4022
4023         lpfc_cleanup(vport);
4024         return;
4025 }
4026
4027 /**
4028  * lpfc_get_instance - Get a unique integer ID
4029  *
4030  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4031  * uses the kernel idr facility to perform the task.
4032  *
4033  * Return codes:
4034  *   instance - a unique integer ID allocated as the new instance.
4035  *   -1 - lpfc get instance failed.
4036  **/
4037 int
4038 lpfc_get_instance(void)
4039 {
4040         int ret;
4041
4042         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4043         return ret < 0 ? -1 : ret;
4044 }
4045
4046 /**
4047  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4048  * @shost: pointer to SCSI host data structure.
4049  * @time: elapsed time of the scan in jiffies.
4050  *
4051  * This routine is called by the SCSI layer with a SCSI host to determine
4052  * whether the scan host is finished.
4053  *
4054  * Note: there is no scan_start function as adapter initialization will have
4055  * asynchronously kicked off the link initialization.
4056  *
4057  * Return codes
4058  *   0 - SCSI host scan is not over yet.
4059  *   1 - SCSI host scan is over.
4060  **/
4061 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4062 {
4063         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4064         struct lpfc_hba   *phba = vport->phba;
4065         int stat = 0;
4066
4067         spin_lock_irq(shost->host_lock);
4068
4069         if (vport->load_flag & FC_UNLOADING) {
4070                 stat = 1;
4071                 goto finished;
4072         }
4073         if (time >= msecs_to_jiffies(30 * 1000)) {
4074                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4075                                 "0461 Scanning longer than 30 "
4076                                 "seconds.  Continuing initialization\n");
4077                 stat = 1;
4078                 goto finished;
4079         }
4080         if (time >= msecs_to_jiffies(15 * 1000) &&
4081             phba->link_state <= LPFC_LINK_DOWN) {
4082                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4083                                 "0465 Link down longer than 15 "
4084                                 "seconds.  Continuing initialization\n");
4085                 stat = 1;
4086                 goto finished;
4087         }
4088
4089         if (vport->port_state != LPFC_VPORT_READY)
4090                 goto finished;
4091         if (vport->num_disc_nodes || vport->fc_prli_sent)
4092                 goto finished;
4093         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4094                 goto finished;
4095         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4096                 goto finished;
4097
4098         stat = 1;
4099
4100 finished:
4101         spin_unlock_irq(shost->host_lock);
4102         return stat;
4103 }
4104
4105 /**
4106  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4107  * @shost: pointer to SCSI host data structure.
4108  *
4109  * This routine initializes a given SCSI host attributes on a FC port. The
4110  * SCSI host can be either on top of a physical port or a virtual port.
4111  **/
4112 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4113 {
4114         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4115         struct lpfc_hba   *phba = vport->phba;
4116         /*
4117          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4118          */
4119
4120         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4121         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4122         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4123
4124         memset(fc_host_supported_fc4s(shost), 0,
4125                sizeof(fc_host_supported_fc4s(shost)));
4126         fc_host_supported_fc4s(shost)[2] = 1;
4127         fc_host_supported_fc4s(shost)[7] = 1;
4128
4129         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4130                                  sizeof fc_host_symbolic_name(shost));
4131
4132         fc_host_supported_speeds(shost) = 0;
4133         if (phba->lmt & LMT_64Gb)
4134                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4135         if (phba->lmt & LMT_32Gb)
4136                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4137         if (phba->lmt & LMT_16Gb)
4138                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4139         if (phba->lmt & LMT_10Gb)
4140                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4141         if (phba->lmt & LMT_8Gb)
4142                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4143         if (phba->lmt & LMT_4Gb)
4144                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4145         if (phba->lmt & LMT_2Gb)
4146                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4147         if (phba->lmt & LMT_1Gb)
4148                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4149
4150         fc_host_maxframe_size(shost) =
4151                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4152                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4153
4154         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4155
4156         /* This value is also unchanging */
4157         memset(fc_host_active_fc4s(shost), 0,
4158                sizeof(fc_host_active_fc4s(shost)));
4159         fc_host_active_fc4s(shost)[2] = 1;
4160         fc_host_active_fc4s(shost)[7] = 1;
4161
4162         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4163         spin_lock_irq(shost->host_lock);
4164         vport->load_flag &= ~FC_LOADING;
4165         spin_unlock_irq(shost->host_lock);
4166 }
4167
4168 /**
4169  * lpfc_stop_port_s3 - Stop SLI3 device port
4170  * @phba: pointer to lpfc hba data structure.
4171  *
4172  * This routine is invoked to stop an SLI3 device port, it stops the device
4173  * from generating interrupts and stops the device driver's timers for the
4174  * device.
4175  **/
4176 static void
4177 lpfc_stop_port_s3(struct lpfc_hba *phba)
4178 {
4179         /* Clear all interrupt enable conditions */
4180         writel(0, phba->HCregaddr);
4181         readl(phba->HCregaddr); /* flush */
4182         /* Clear all pending interrupts */
4183         writel(0xffffffff, phba->HAregaddr);
4184         readl(phba->HAregaddr); /* flush */
4185
4186         /* Reset some HBA SLI setup states */
4187         lpfc_stop_hba_timers(phba);
4188         phba->pport->work_port_events = 0;
4189 }
4190
4191 /**
4192  * lpfc_stop_port_s4 - Stop SLI4 device port
4193  * @phba: pointer to lpfc hba data structure.
4194  *
4195  * This routine is invoked to stop an SLI4 device port, it stops the device
4196  * from generating interrupts and stops the device driver's timers for the
4197  * device.
4198  **/
4199 static void
4200 lpfc_stop_port_s4(struct lpfc_hba *phba)
4201 {
4202         /* Reset some HBA SLI4 setup states */
4203         lpfc_stop_hba_timers(phba);
4204         phba->pport->work_port_events = 0;
4205         phba->sli4_hba.intr_enable = 0;
4206 }
4207
4208 /**
4209  * lpfc_stop_port - Wrapper function for stopping hba port
4210  * @phba: Pointer to HBA context object.
4211  *
4212  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4213  * the API jump table function pointer from the lpfc_hba struct.
4214  **/
4215 void
4216 lpfc_stop_port(struct lpfc_hba *phba)
4217 {
4218         phba->lpfc_stop_port(phba);
4219
4220         if (phba->wq)
4221                 flush_workqueue(phba->wq);
4222 }
4223
4224 /**
4225  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4226  * @phba: Pointer to hba for which this call is being executed.
4227  *
4228  * This routine starts the timer waiting for the FCF rediscovery to complete.
4229  **/
4230 void
4231 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4232 {
4233         unsigned long fcf_redisc_wait_tmo =
4234                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4235         /* Start fcf rediscovery wait period timer */
4236         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4237         spin_lock_irq(&phba->hbalock);
4238         /* Allow action to new fcf asynchronous event */
4239         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4240         /* Mark the FCF rediscovery pending state */
4241         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4242         spin_unlock_irq(&phba->hbalock);
4243 }
4244
4245 /**
4246  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4247  * @ptr: Map to lpfc_hba data structure pointer.
4248  *
4249  * This routine is invoked when waiting for FCF table rediscover has been
4250  * timed out. If new FCF record(s) has (have) been discovered during the
4251  * wait period, a new FCF event shall be added to the FCOE async event
4252  * list, and then worker thread shall be waked up for processing from the
4253  * worker thread context.
4254  **/
4255 static void
4256 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4257 {
4258         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4259
4260         /* Don't send FCF rediscovery event if timer cancelled */
4261         spin_lock_irq(&phba->hbalock);
4262         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4263                 spin_unlock_irq(&phba->hbalock);
4264                 return;
4265         }
4266         /* Clear FCF rediscovery timer pending flag */
4267         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4268         /* FCF rediscovery event to worker thread */
4269         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4270         spin_unlock_irq(&phba->hbalock);
4271         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4272                         "2776 FCF rediscover quiescent timer expired\n");
4273         /* wake up worker thread */
4274         lpfc_worker_wake_up(phba);
4275 }
4276
4277 /**
4278  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4279  * @phba: pointer to lpfc hba data structure.
4280  * @acqe_link: pointer to the async link completion queue entry.
4281  *
4282  * This routine is to parse the SLI4 link-attention link fault code.
4283  **/
4284 static void
4285 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4286                            struct lpfc_acqe_link *acqe_link)
4287 {
4288         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4289         case LPFC_ASYNC_LINK_FAULT_NONE:
4290         case LPFC_ASYNC_LINK_FAULT_LOCAL:
4291         case LPFC_ASYNC_LINK_FAULT_REMOTE:
4292         case LPFC_ASYNC_LINK_FAULT_LR_LRR:
4293                 break;
4294         default:
4295                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4296                                 "0398 Unknown link fault code: x%x\n",
4297                                 bf_get(lpfc_acqe_link_fault, acqe_link));
4298                 break;
4299         }
4300 }
4301
4302 /**
4303  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4304  * @phba: pointer to lpfc hba data structure.
4305  * @acqe_link: pointer to the async link completion queue entry.
4306  *
4307  * This routine is to parse the SLI4 link attention type and translate it
4308  * into the base driver's link attention type coding.
4309  *
4310  * Return: Link attention type in terms of base driver's coding.
4311  **/
4312 static uint8_t
4313 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4314                           struct lpfc_acqe_link *acqe_link)
4315 {
4316         uint8_t att_type;
4317
4318         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4319         case LPFC_ASYNC_LINK_STATUS_DOWN:
4320         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4321                 att_type = LPFC_ATT_LINK_DOWN;
4322                 break;
4323         case LPFC_ASYNC_LINK_STATUS_UP:
4324                 /* Ignore physical link up events - wait for logical link up */
4325                 att_type = LPFC_ATT_RESERVED;
4326                 break;
4327         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4328                 att_type = LPFC_ATT_LINK_UP;
4329                 break;
4330         default:
4331                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4332                                 "0399 Invalid link attention type: x%x\n",
4333                                 bf_get(lpfc_acqe_link_status, acqe_link));
4334                 att_type = LPFC_ATT_RESERVED;
4335                 break;
4336         }
4337         return att_type;
4338 }
4339
4340 /**
4341  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4342  * @phba: pointer to lpfc hba data structure.
4343  *
4344  * This routine is to get an SLI3 FC port's link speed in Mbps.
4345  *
4346  * Return: link speed in terms of Mbps.
4347  **/
4348 uint32_t
4349 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4350 {
4351         uint32_t link_speed;
4352
4353         if (!lpfc_is_link_up(phba))
4354                 return 0;
4355
4356         if (phba->sli_rev <= LPFC_SLI_REV3) {
4357                 switch (phba->fc_linkspeed) {
4358                 case LPFC_LINK_SPEED_1GHZ:
4359                         link_speed = 1000;
4360                         break;
4361                 case LPFC_LINK_SPEED_2GHZ:
4362                         link_speed = 2000;
4363                         break;
4364                 case LPFC_LINK_SPEED_4GHZ:
4365                         link_speed = 4000;
4366                         break;
4367                 case LPFC_LINK_SPEED_8GHZ:
4368                         link_speed = 8000;
4369                         break;
4370                 case LPFC_LINK_SPEED_10GHZ:
4371                         link_speed = 10000;
4372                         break;
4373                 case LPFC_LINK_SPEED_16GHZ:
4374                         link_speed = 16000;
4375                         break;
4376                 default:
4377                         link_speed = 0;
4378                 }
4379         } else {
4380                 if (phba->sli4_hba.link_state.logical_speed)
4381                         link_speed =
4382                               phba->sli4_hba.link_state.logical_speed;
4383                 else
4384                         link_speed = phba->sli4_hba.link_state.speed;
4385         }
4386         return link_speed;
4387 }
4388
4389 /**
4390  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4391  * @phba: pointer to lpfc hba data structure.
4392  * @evt_code: asynchronous event code.
4393  * @speed_code: asynchronous event link speed code.
4394  *
4395  * This routine is to parse the giving SLI4 async event link speed code into
4396  * value of Mbps for the link speed.
4397  *
4398  * Return: link speed in terms of Mbps.
4399  **/
4400 static uint32_t
4401 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4402                            uint8_t speed_code)
4403 {
4404         uint32_t port_speed;
4405
4406         switch (evt_code) {
4407         case LPFC_TRAILER_CODE_LINK:
4408                 switch (speed_code) {
4409                 case LPFC_ASYNC_LINK_SPEED_ZERO:
4410                         port_speed = 0;
4411                         break;
4412                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4413                         port_speed = 10;
4414                         break;
4415                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4416                         port_speed = 100;
4417                         break;
4418                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4419                         port_speed = 1000;
4420                         break;
4421                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4422                         port_speed = 10000;
4423                         break;
4424                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4425                         port_speed = 20000;
4426                         break;
4427                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4428                         port_speed = 25000;
4429                         break;
4430                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4431                         port_speed = 40000;
4432                         break;
4433                 default:
4434                         port_speed = 0;
4435                 }
4436                 break;
4437         case LPFC_TRAILER_CODE_FC:
4438                 switch (speed_code) {
4439                 case LPFC_FC_LA_SPEED_UNKNOWN:
4440                         port_speed = 0;
4441                         break;
4442                 case LPFC_FC_LA_SPEED_1G:
4443                         port_speed = 1000;
4444                         break;
4445                 case LPFC_FC_LA_SPEED_2G:
4446                         port_speed = 2000;
4447                         break;
4448                 case LPFC_FC_LA_SPEED_4G:
4449                         port_speed = 4000;
4450                         break;
4451                 case LPFC_FC_LA_SPEED_8G:
4452                         port_speed = 8000;
4453                         break;
4454                 case LPFC_FC_LA_SPEED_10G:
4455                         port_speed = 10000;
4456                         break;
4457                 case LPFC_FC_LA_SPEED_16G:
4458                         port_speed = 16000;
4459                         break;
4460                 case LPFC_FC_LA_SPEED_32G:
4461                         port_speed = 32000;
4462                         break;
4463                 case LPFC_FC_LA_SPEED_64G:
4464                         port_speed = 64000;
4465                         break;
4466                 default:
4467                         port_speed = 0;
4468                 }
4469                 break;
4470         default:
4471                 port_speed = 0;
4472         }
4473         return port_speed;
4474 }
4475
4476 /**
4477  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4478  * @phba: pointer to lpfc hba data structure.
4479  * @acqe_link: pointer to the async link completion queue entry.
4480  *
4481  * This routine is to handle the SLI4 asynchronous FCoE link event.
4482  **/
4483 static void
4484 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4485                          struct lpfc_acqe_link *acqe_link)
4486 {
4487         struct lpfc_dmabuf *mp;
4488         LPFC_MBOXQ_t *pmb;
4489         MAILBOX_t *mb;
4490         struct lpfc_mbx_read_top *la;
4491         uint8_t att_type;
4492         int rc;
4493
4494         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4495         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4496                 return;
4497         phba->fcoe_eventtag = acqe_link->event_tag;
4498         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4499         if (!pmb) {
4500                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4501                                 "0395 The mboxq allocation failed\n");
4502                 return;
4503         }
4504         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4505         if (!mp) {
4506                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4507                                 "0396 The lpfc_dmabuf allocation failed\n");
4508                 goto out_free_pmb;
4509         }
4510         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4511         if (!mp->virt) {
4512                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4513                                 "0397 The mbuf allocation failed\n");
4514                 goto out_free_dmabuf;
4515         }
4516
4517         /* Cleanup any outstanding ELS commands */
4518         lpfc_els_flush_all_cmd(phba);
4519
4520         /* Block ELS IOCBs until we have done process link event */
4521         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4522
4523         /* Update link event statistics */
4524         phba->sli.slistat.link_event++;
4525
4526         /* Create lpfc_handle_latt mailbox command from link ACQE */
4527         lpfc_read_topology(phba, pmb, mp);
4528         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4529         pmb->vport = phba->pport;
4530
4531         /* Keep the link status for extra SLI4 state machine reference */
4532         phba->sli4_hba.link_state.speed =
4533                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4534                                 bf_get(lpfc_acqe_link_speed, acqe_link));
4535         phba->sli4_hba.link_state.duplex =
4536                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
4537         phba->sli4_hba.link_state.status =
4538                                 bf_get(lpfc_acqe_link_status, acqe_link);
4539         phba->sli4_hba.link_state.type =
4540                                 bf_get(lpfc_acqe_link_type, acqe_link);
4541         phba->sli4_hba.link_state.number =
4542                                 bf_get(lpfc_acqe_link_number, acqe_link);
4543         phba->sli4_hba.link_state.fault =
4544                                 bf_get(lpfc_acqe_link_fault, acqe_link);
4545         phba->sli4_hba.link_state.logical_speed =
4546                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4547
4548         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4549                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
4550                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4551                         "Logical speed:%dMbps Fault:%d\n",
4552                         phba->sli4_hba.link_state.speed,
4553                         phba->sli4_hba.link_state.topology,
4554                         phba->sli4_hba.link_state.status,
4555                         phba->sli4_hba.link_state.type,
4556                         phba->sli4_hba.link_state.number,
4557                         phba->sli4_hba.link_state.logical_speed,
4558                         phba->sli4_hba.link_state.fault);
4559         /*
4560          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4561          * topology info. Note: Optional for non FC-AL ports.
4562          */
4563         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4564                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4565                 if (rc == MBX_NOT_FINISHED)
4566                         goto out_free_dmabuf;
4567                 return;
4568         }
4569         /*
4570          * For FCoE Mode: fill in all the topology information we need and call
4571          * the READ_TOPOLOGY completion routine to continue without actually
4572          * sending the READ_TOPOLOGY mailbox command to the port.
4573          */
4574         /* Initialize completion status */
4575         mb = &pmb->u.mb;
4576         mb->mbxStatus = MBX_SUCCESS;
4577
4578         /* Parse port fault information field */
4579         lpfc_sli4_parse_latt_fault(phba, acqe_link);
4580
4581         /* Parse and translate link attention fields */
4582         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4583         la->eventTag = acqe_link->event_tag;
4584         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4585         bf_set(lpfc_mbx_read_top_link_spd, la,
4586                (bf_get(lpfc_acqe_link_speed, acqe_link)));
4587
4588         /* Fake the the following irrelvant fields */
4589         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4590         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4591         bf_set(lpfc_mbx_read_top_il, la, 0);
4592         bf_set(lpfc_mbx_read_top_pb, la, 0);
4593         bf_set(lpfc_mbx_read_top_fa, la, 0);
4594         bf_set(lpfc_mbx_read_top_mm, la, 0);
4595
4596         /* Invoke the lpfc_handle_latt mailbox command callback function */
4597         lpfc_mbx_cmpl_read_topology(phba, pmb);
4598
4599         return;
4600
4601 out_free_dmabuf:
4602         kfree(mp);
4603 out_free_pmb:
4604         mempool_free(pmb, phba->mbox_mem_pool);
4605 }
4606
4607 /**
4608  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
4609  * @phba: pointer to lpfc hba data structure.
4610  * @acqe_fc: pointer to the async fc completion queue entry.
4611  *
4612  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4613  * that the event was received and then issue a read_topology mailbox command so
4614  * that the rest of the driver will treat it the same as SLI3.
4615  **/
4616 static void
4617 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4618 {
4619         struct lpfc_dmabuf *mp;
4620         LPFC_MBOXQ_t *pmb;
4621         MAILBOX_t *mb;
4622         struct lpfc_mbx_read_top *la;
4623         int rc;
4624
4625         if (bf_get(lpfc_trailer_type, acqe_fc) !=
4626             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4627                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4628                                 "2895 Non FC link Event detected.(%d)\n",
4629                                 bf_get(lpfc_trailer_type, acqe_fc));
4630                 return;
4631         }
4632         /* Keep the link status for extra SLI4 state machine reference */
4633         phba->sli4_hba.link_state.speed =
4634                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4635                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4636         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4637         phba->sli4_hba.link_state.topology =
4638                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4639         phba->sli4_hba.link_state.status =
4640                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4641         phba->sli4_hba.link_state.type =
4642                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4643         phba->sli4_hba.link_state.number =
4644                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4645         phba->sli4_hba.link_state.fault =
4646                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
4647         phba->sli4_hba.link_state.logical_speed =
4648                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4649         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4650                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4651                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4652                         "%dMbps Fault:%d\n",
4653                         phba->sli4_hba.link_state.speed,
4654                         phba->sli4_hba.link_state.topology,
4655                         phba->sli4_hba.link_state.status,
4656                         phba->sli4_hba.link_state.type,
4657                         phba->sli4_hba.link_state.number,
4658                         phba->sli4_hba.link_state.logical_speed,
4659                         phba->sli4_hba.link_state.fault);
4660         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4661         if (!pmb) {
4662                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4663                                 "2897 The mboxq allocation failed\n");
4664                 return;
4665         }
4666         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4667         if (!mp) {
4668                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4669                                 "2898 The lpfc_dmabuf allocation failed\n");
4670                 goto out_free_pmb;
4671         }
4672         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4673         if (!mp->virt) {
4674                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4675                                 "2899 The mbuf allocation failed\n");
4676                 goto out_free_dmabuf;
4677         }
4678
4679         /* Cleanup any outstanding ELS commands */
4680         lpfc_els_flush_all_cmd(phba);
4681
4682         /* Block ELS IOCBs until we have done process link event */
4683         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4684
4685         /* Update link event statistics */
4686         phba->sli.slistat.link_event++;
4687
4688         /* Create lpfc_handle_latt mailbox command from link ACQE */
4689         lpfc_read_topology(phba, pmb, mp);
4690         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4691         pmb->vport = phba->pport;
4692
4693         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
4694                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
4695
4696                 switch (phba->sli4_hba.link_state.status) {
4697                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
4698                         phba->link_flag |= LS_MDS_LINK_DOWN;
4699                         break;
4700                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
4701                         phba->link_flag |= LS_MDS_LOOPBACK;
4702                         break;
4703                 default:
4704                         break;
4705                 }
4706
4707                 /* Initialize completion status */
4708                 mb = &pmb->u.mb;
4709                 mb->mbxStatus = MBX_SUCCESS;
4710
4711                 /* Parse port fault information field */
4712                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
4713
4714                 /* Parse and translate link attention fields */
4715                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
4716                 la->eventTag = acqe_fc->event_tag;
4717
4718                 if (phba->sli4_hba.link_state.status ==
4719                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
4720                         bf_set(lpfc_mbx_read_top_att_type, la,
4721                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
4722                 } else {
4723                         bf_set(lpfc_mbx_read_top_att_type, la,
4724                                LPFC_FC_LA_TYPE_LINK_DOWN);
4725                 }
4726                 /* Invoke the mailbox command callback function */
4727                 lpfc_mbx_cmpl_read_topology(phba, pmb);
4728
4729                 return;
4730         }
4731
4732         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4733         if (rc == MBX_NOT_FINISHED)
4734                 goto out_free_dmabuf;
4735         return;
4736
4737 out_free_dmabuf:
4738         kfree(mp);
4739 out_free_pmb:
4740         mempool_free(pmb, phba->mbox_mem_pool);
4741 }
4742
4743 /**
4744  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4745  * @phba: pointer to lpfc hba data structure.
4746  * @acqe_fc: pointer to the async SLI completion queue entry.
4747  *
4748  * This routine is to handle the SLI4 asynchronous SLI events.
4749  **/
4750 static void
4751 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4752 {
4753         char port_name;
4754         char message[128];
4755         uint8_t status;
4756         uint8_t evt_type;
4757         uint8_t operational = 0;
4758         struct temp_event temp_event_data;
4759         struct lpfc_acqe_misconfigured_event *misconfigured;
4760         struct Scsi_Host  *shost;
4761
4762         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4763
4764         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4765                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4766                         "x%08x SLI Event Type:%d\n",
4767                         acqe_sli->event_data1, acqe_sli->event_data2,
4768                         evt_type);
4769
4770         port_name = phba->Port[0];
4771         if (port_name == 0x00)
4772                 port_name = '?'; /* get port name is empty */
4773
4774         switch (evt_type) {
4775         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4776                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4777                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4778                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4779
4780                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4781                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4782                                 acqe_sli->event_data1, port_name);
4783
4784                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
4785                 shost = lpfc_shost_from_vport(phba->pport);
4786                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4787                                           sizeof(temp_event_data),
4788                                           (char *)&temp_event_data,
4789                                           SCSI_NL_VID_TYPE_PCI
4790                                           | PCI_VENDOR_ID_EMULEX);
4791                 break;
4792         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4793                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4794                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4795                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4796
4797                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4798                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4799                                 acqe_sli->event_data1, port_name);
4800
4801                 shost = lpfc_shost_from_vport(phba->pport);
4802                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4803                                           sizeof(temp_event_data),
4804                                           (char *)&temp_event_data,
4805                                           SCSI_NL_VID_TYPE_PCI
4806                                           | PCI_VENDOR_ID_EMULEX);
4807                 break;
4808         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4809                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4810                                         &acqe_sli->event_data1;
4811
4812                 /* fetch the status for this port */
4813                 switch (phba->sli4_hba.lnk_info.lnk_no) {
4814                 case LPFC_LINK_NUMBER_0:
4815                         status = bf_get(lpfc_sli_misconfigured_port0_state,
4816                                         &misconfigured->theEvent);
4817                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
4818                                         &misconfigured->theEvent);
4819                         break;
4820                 case LPFC_LINK_NUMBER_1:
4821                         status = bf_get(lpfc_sli_misconfigured_port1_state,
4822                                         &misconfigured->theEvent);
4823                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
4824                                         &misconfigured->theEvent);
4825                         break;
4826                 case LPFC_LINK_NUMBER_2:
4827                         status = bf_get(lpfc_sli_misconfigured_port2_state,
4828                                         &misconfigured->theEvent);
4829                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
4830                                         &misconfigured->theEvent);
4831                         break;
4832                 case LPFC_LINK_NUMBER_3:
4833                         status = bf_get(lpfc_sli_misconfigured_port3_state,
4834                                         &misconfigured->theEvent);
4835                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
4836                                         &misconfigured->theEvent);
4837                         break;
4838                 default:
4839                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4840                                         "3296 "
4841                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
4842                                         "event: Invalid link %d",
4843                                         phba->sli4_hba.lnk_info.lnk_no);
4844                         return;
4845                 }
4846
4847                 /* Skip if optic state unchanged */
4848                 if (phba->sli4_hba.lnk_info.optic_state == status)
4849                         return;
4850
4851                 switch (status) {
4852                 case LPFC_SLI_EVENT_STATUS_VALID:
4853                         sprintf(message, "Physical Link is functional");
4854                         break;
4855                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4856                         sprintf(message, "Optics faulted/incorrectly "
4857                                 "installed/not installed - Reseat optics, "
4858                                 "if issue not resolved, replace.");
4859                         break;
4860                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4861                         sprintf(message,
4862                                 "Optics of two types installed - Remove one "
4863                                 "optic or install matching pair of optics.");
4864                         break;
4865                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4866                         sprintf(message, "Incompatible optics - Replace with "
4867                                 "compatible optics for card to function.");
4868                         break;
4869                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
4870                         sprintf(message, "Unqualified optics - Replace with "
4871                                 "Avago optics for Warranty and Technical "
4872                                 "Support - Link is%s operational",
4873                                 (operational) ? " not" : "");
4874                         break;
4875                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
4876                         sprintf(message, "Uncertified optics - Replace with "
4877                                 "Avago-certified optics to enable link "
4878                                 "operation - Link is%s operational",
4879                                 (operational) ? " not" : "");
4880                         break;
4881                 default:
4882                         /* firmware is reporting a status we don't know about */
4883                         sprintf(message, "Unknown event status x%02x", status);
4884                         break;
4885                 }
4886                 phba->sli4_hba.lnk_info.optic_state = status;
4887                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4888                                 "3176 Port Name %c %s\n", port_name, message);
4889                 break;
4890         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4891                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4892                                 "3192 Remote DPort Test Initiated - "
4893                                 "Event Data1:x%08x Event Data2: x%08x\n",
4894                                 acqe_sli->event_data1, acqe_sli->event_data2);
4895                 break;
4896         default:
4897                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4898                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4899                                 "x%08x SLI Event Type:%d\n",
4900                                 acqe_sli->event_data1, acqe_sli->event_data2,
4901                                 evt_type);
4902                 break;
4903         }
4904 }
4905
4906 /**
4907  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4908  * @vport: pointer to vport data structure.
4909  *
4910  * This routine is to perform Clear Virtual Link (CVL) on a vport in
4911  * response to a CVL event.
4912  *
4913  * Return the pointer to the ndlp with the vport if successful, otherwise
4914  * return NULL.
4915  **/
4916 static struct lpfc_nodelist *
4917 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4918 {
4919         struct lpfc_nodelist *ndlp;
4920         struct Scsi_Host *shost;
4921         struct lpfc_hba *phba;
4922
4923         if (!vport)
4924                 return NULL;
4925         phba = vport->phba;
4926         if (!phba)
4927                 return NULL;
4928         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4929         if (!ndlp) {
4930                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4931                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
4932                 if (!ndlp)
4933                         return 0;
4934                 /* Set the node type */
4935                 ndlp->nlp_type |= NLP_FABRIC;
4936                 /* Put ndlp onto node list */
4937                 lpfc_enqueue_node(vport, ndlp);
4938         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4939                 /* re-setup ndlp without removing from node list */
4940                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4941                 if (!ndlp)
4942                         return 0;
4943         }
4944         if ((phba->pport->port_state < LPFC_FLOGI) &&
4945                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4946                 return NULL;
4947         /* If virtual link is not yet instantiated ignore CVL */
4948         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4949                 && (vport->port_state != LPFC_VPORT_FAILED))
4950                 return NULL;
4951         shost = lpfc_shost_from_vport(vport);
4952         if (!shost)
4953                 return NULL;
4954         lpfc_linkdown_port(vport);
4955         lpfc_cleanup_pending_mbox(vport);
4956         spin_lock_irq(shost->host_lock);
4957         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4958         spin_unlock_irq(shost->host_lock);
4959
4960         return ndlp;
4961 }
4962
4963 /**
4964  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4965  * @vport: pointer to lpfc hba data structure.
4966  *
4967  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4968  * response to a FCF dead event.
4969  **/
4970 static void
4971 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4972 {
4973         struct lpfc_vport **vports;
4974         int i;
4975
4976         vports = lpfc_create_vport_work_array(phba);
4977         if (vports)
4978                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4979                         lpfc_sli4_perform_vport_cvl(vports[i]);
4980         lpfc_destroy_vport_work_array(phba, vports);
4981 }
4982
4983 /**
4984  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4985  * @phba: pointer to lpfc hba data structure.
4986  * @acqe_link: pointer to the async fcoe completion queue entry.
4987  *
4988  * This routine is to handle the SLI4 asynchronous fcoe event.
4989  **/
4990 static void
4991 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4992                         struct lpfc_acqe_fip *acqe_fip)
4993 {
4994         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4995         int rc;
4996         struct lpfc_vport *vport;
4997         struct lpfc_nodelist *ndlp;
4998         struct Scsi_Host  *shost;
4999         int active_vlink_present;
5000         struct lpfc_vport **vports;
5001         int i;
5002
5003         phba->fc_eventTag = acqe_fip->event_tag;
5004         phba->fcoe_eventtag = acqe_fip->event_tag;
5005         switch (event_type) {
5006         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
5007         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
5008                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
5009                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5010                                         LOG_DISCOVERY,
5011                                         "2546 New FCF event, evt_tag:x%x, "
5012                                         "index:x%x\n",
5013                                         acqe_fip->event_tag,
5014                                         acqe_fip->index);
5015                 else
5016                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
5017                                         LOG_DISCOVERY,
5018                                         "2788 FCF param modified event, "
5019                                         "evt_tag:x%x, index:x%x\n",
5020                                         acqe_fip->event_tag,
5021                                         acqe_fip->index);
5022                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5023                         /*
5024                          * During period of FCF discovery, read the FCF
5025                          * table record indexed by the event to update
5026                          * FCF roundrobin failover eligible FCF bmask.
5027                          */
5028                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5029                                         LOG_DISCOVERY,
5030                                         "2779 Read FCF (x%x) for updating "
5031                                         "roundrobin FCF failover bmask\n",
5032                                         acqe_fip->index);
5033                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
5034                 }
5035
5036                 /* If the FCF discovery is in progress, do nothing. */
5037                 spin_lock_irq(&phba->hbalock);
5038                 if (phba->hba_flag & FCF_TS_INPROG) {
5039                         spin_unlock_irq(&phba->hbalock);
5040                         break;
5041                 }
5042                 /* If fast FCF failover rescan event is pending, do nothing */
5043                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
5044                         spin_unlock_irq(&phba->hbalock);
5045                         break;
5046                 }
5047
5048                 /* If the FCF has been in discovered state, do nothing. */
5049                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
5050                         spin_unlock_irq(&phba->hbalock);
5051                         break;
5052                 }
5053                 spin_unlock_irq(&phba->hbalock);
5054
5055                 /* Otherwise, scan the entire FCF table and re-discover SAN */
5056                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5057                                 "2770 Start FCF table scan per async FCF "
5058                                 "event, evt_tag:x%x, index:x%x\n",
5059                                 acqe_fip->event_tag, acqe_fip->index);
5060                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5061                                                      LPFC_FCOE_FCF_GET_FIRST);
5062                 if (rc)
5063                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5064                                         "2547 Issue FCF scan read FCF mailbox "
5065                                         "command failed (x%x)\n", rc);
5066                 break;
5067
5068         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5069                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5070                         "2548 FCF Table full count 0x%x tag 0x%x\n",
5071                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5072                         acqe_fip->event_tag);
5073                 break;
5074
5075         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5076                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5077                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5078                         "2549 FCF (x%x) disconnected from network, "
5079                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
5080                 /*
5081                  * If we are in the middle of FCF failover process, clear
5082                  * the corresponding FCF bit in the roundrobin bitmap.
5083                  */
5084                 spin_lock_irq(&phba->hbalock);
5085                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5086                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5087                         spin_unlock_irq(&phba->hbalock);
5088                         /* Update FLOGI FCF failover eligible FCF bmask */
5089                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5090                         break;
5091                 }
5092                 spin_unlock_irq(&phba->hbalock);
5093
5094                 /* If the event is not for currently used fcf do nothing */
5095                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5096                         break;
5097
5098                 /*
5099                  * Otherwise, request the port to rediscover the entire FCF
5100                  * table for a fast recovery from case that the current FCF
5101                  * is no longer valid as we are not in the middle of FCF
5102                  * failover process already.
5103                  */
5104                 spin_lock_irq(&phba->hbalock);
5105                 /* Mark the fast failover process in progress */
5106                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5107                 spin_unlock_irq(&phba->hbalock);
5108
5109                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5110                                 "2771 Start FCF fast failover process due to "
5111                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5112                                 "\n", acqe_fip->event_tag, acqe_fip->index);
5113                 rc = lpfc_sli4_redisc_fcf_table(phba);
5114                 if (rc) {
5115                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5116                                         LOG_DISCOVERY,
5117                                         "2772 Issue FCF rediscover mailbox "
5118                                         "command failed, fail through to FCF "
5119                                         "dead event\n");
5120                         spin_lock_irq(&phba->hbalock);
5121                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5122                         spin_unlock_irq(&phba->hbalock);
5123                         /*
5124                          * Last resort will fail over by treating this
5125                          * as a link down to FCF registration.
5126                          */
5127                         lpfc_sli4_fcf_dead_failthrough(phba);
5128                 } else {
5129                         /* Reset FCF roundrobin bmask for new discovery */
5130                         lpfc_sli4_clear_fcf_rr_bmask(phba);
5131                         /*
5132                          * Handling fast FCF failover to a DEAD FCF event is
5133                          * considered equalivant to receiving CVL to all vports.
5134                          */
5135                         lpfc_sli4_perform_all_vport_cvl(phba);
5136                 }
5137                 break;
5138         case LPFC_FIP_EVENT_TYPE_CVL:
5139                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5140                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5141                         "2718 Clear Virtual Link Received for VPI 0x%x"
5142                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5143
5144                 vport = lpfc_find_vport_by_vpid(phba,
5145                                                 acqe_fip->index);
5146                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
5147                 if (!ndlp)
5148                         break;
5149                 active_vlink_present = 0;
5150
5151                 vports = lpfc_create_vport_work_array(phba);
5152                 if (vports) {
5153                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5154                                         i++) {
5155                                 if ((!(vports[i]->fc_flag &
5156                                         FC_VPORT_CVL_RCVD)) &&
5157                                         (vports[i]->port_state > LPFC_FDISC)) {
5158                                         active_vlink_present = 1;
5159                                         break;
5160                                 }
5161                         }
5162                         lpfc_destroy_vport_work_array(phba, vports);
5163                 }
5164
5165                 /*
5166                  * Don't re-instantiate if vport is marked for deletion.
5167                  * If we are here first then vport_delete is going to wait
5168                  * for discovery to complete.
5169                  */
5170                 if (!(vport->load_flag & FC_UNLOADING) &&
5171                                         active_vlink_present) {
5172                         /*
5173                          * If there are other active VLinks present,
5174                          * re-instantiate the Vlink using FDISC.
5175                          */
5176                         mod_timer(&ndlp->nlp_delayfunc,
5177                                   jiffies + msecs_to_jiffies(1000));
5178                         shost = lpfc_shost_from_vport(vport);
5179                         spin_lock_irq(shost->host_lock);
5180                         ndlp->nlp_flag |= NLP_DELAY_TMO;
5181                         spin_unlock_irq(shost->host_lock);
5182                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5183                         vport->port_state = LPFC_FDISC;
5184                 } else {
5185                         /*
5186                          * Otherwise, we request port to rediscover
5187                          * the entire FCF table for a fast recovery
5188                          * from possible case that the current FCF
5189                          * is no longer valid if we are not already
5190                          * in the FCF failover process.
5191                          */
5192                         spin_lock_irq(&phba->hbalock);
5193                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5194                                 spin_unlock_irq(&phba->hbalock);
5195                                 break;
5196                         }
5197                         /* Mark the fast failover process in progress */
5198                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5199                         spin_unlock_irq(&phba->hbalock);
5200                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5201                                         LOG_DISCOVERY,
5202                                         "2773 Start FCF failover per CVL, "
5203                                         "evt_tag:x%x\n", acqe_fip->event_tag);
5204                         rc = lpfc_sli4_redisc_fcf_table(phba);
5205                         if (rc) {
5206                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5207                                                 LOG_DISCOVERY,
5208                                                 "2774 Issue FCF rediscover "
5209                                                 "mailbox command failed, "
5210                                                 "through to CVL event\n");
5211                                 spin_lock_irq(&phba->hbalock);
5212                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5213                                 spin_unlock_irq(&phba->hbalock);
5214                                 /*
5215                                  * Last resort will be re-try on the
5216                                  * the current registered FCF entry.
5217                                  */
5218                                 lpfc_retry_pport_discovery(phba);
5219                         } else
5220                                 /*
5221                                  * Reset FCF roundrobin bmask for new
5222                                  * discovery.
5223                                  */
5224                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
5225                 }
5226                 break;
5227         default:
5228                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5229                         "0288 Unknown FCoE event type 0x%x event tag "
5230                         "0x%x\n", event_type, acqe_fip->event_tag);
5231                 break;
5232         }
5233 }
5234
5235 /**
5236  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5237  * @phba: pointer to lpfc hba data structure.
5238  * @acqe_link: pointer to the async dcbx completion queue entry.
5239  *
5240  * This routine is to handle the SLI4 asynchronous dcbx event.
5241  **/
5242 static void
5243 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5244                          struct lpfc_acqe_dcbx *acqe_dcbx)
5245 {
5246         phba->fc_eventTag = acqe_dcbx->event_tag;
5247         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5248                         "0290 The SLI4 DCBX asynchronous event is not "
5249                         "handled yet\n");
5250 }
5251
5252 /**
5253  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5254  * @phba: pointer to lpfc hba data structure.
5255  * @acqe_link: pointer to the async grp5 completion queue entry.
5256  *
5257  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5258  * is an asynchronous notified of a logical link speed change.  The Port
5259  * reports the logical link speed in units of 10Mbps.
5260  **/
5261 static void
5262 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5263                          struct lpfc_acqe_grp5 *acqe_grp5)
5264 {
5265         uint16_t prev_ll_spd;
5266
5267         phba->fc_eventTag = acqe_grp5->event_tag;
5268         phba->fcoe_eventtag = acqe_grp5->event_tag;
5269         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5270         phba->sli4_hba.link_state.logical_speed =
5271                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5272         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5273                         "2789 GRP5 Async Event: Updating logical link speed "
5274                         "from %dMbps to %dMbps\n", prev_ll_spd,
5275                         phba->sli4_hba.link_state.logical_speed);
5276 }
5277
5278 /**
5279  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5280  * @phba: pointer to lpfc hba data structure.
5281  *
5282  * This routine is invoked by the worker thread to process all the pending
5283  * SLI4 asynchronous events.
5284  **/
5285 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5286 {
5287         struct lpfc_cq_event *cq_event;
5288
5289         /* First, declare the async event has been handled */
5290         spin_lock_irq(&phba->hbalock);
5291         phba->hba_flag &= ~ASYNC_EVENT;
5292         spin_unlock_irq(&phba->hbalock);
5293         /* Now, handle all the async events */
5294         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5295                 /* Get the first event from the head of the event queue */
5296                 spin_lock_irq(&phba->hbalock);
5297                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5298                                  cq_event, struct lpfc_cq_event, list);
5299                 spin_unlock_irq(&phba->hbalock);
5300                 /* Process the asynchronous event */
5301                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5302                 case LPFC_TRAILER_CODE_LINK:
5303                         lpfc_sli4_async_link_evt(phba,
5304                                                  &cq_event->cqe.acqe_link);
5305                         break;
5306                 case LPFC_TRAILER_CODE_FCOE:
5307                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5308                         break;
5309                 case LPFC_TRAILER_CODE_DCBX:
5310                         lpfc_sli4_async_dcbx_evt(phba,
5311                                                  &cq_event->cqe.acqe_dcbx);
5312                         break;
5313                 case LPFC_TRAILER_CODE_GRP5:
5314                         lpfc_sli4_async_grp5_evt(phba,
5315                                                  &cq_event->cqe.acqe_grp5);
5316                         break;
5317                 case LPFC_TRAILER_CODE_FC:
5318                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5319                         break;
5320                 case LPFC_TRAILER_CODE_SLI:
5321                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5322                         break;
5323                 default:
5324                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5325                                         "1804 Invalid asynchrous event code: "
5326                                         "x%x\n", bf_get(lpfc_trailer_code,
5327                                         &cq_event->cqe.mcqe_cmpl));
5328                         break;
5329                 }
5330                 /* Free the completion event processed to the free pool */
5331                 lpfc_sli4_cq_event_release(phba, cq_event);
5332         }
5333 }
5334
5335 /**
5336  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5337  * @phba: pointer to lpfc hba data structure.
5338  *
5339  * This routine is invoked by the worker thread to process FCF table
5340  * rediscovery pending completion event.
5341  **/
5342 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5343 {
5344         int rc;
5345
5346         spin_lock_irq(&phba->hbalock);
5347         /* Clear FCF rediscovery timeout event */
5348         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5349         /* Clear driver fast failover FCF record flag */
5350         phba->fcf.failover_rec.flag = 0;
5351         /* Set state for FCF fast failover */
5352         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5353         spin_unlock_irq(&phba->hbalock);
5354
5355         /* Scan FCF table from the first entry to re-discover SAN */
5356         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5357                         "2777 Start post-quiescent FCF table scan\n");
5358         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5359         if (rc)
5360                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5361                                 "2747 Issue FCF scan read FCF mailbox "
5362                                 "command failed 0x%x\n", rc);
5363 }
5364
5365 /**
5366  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5367  * @phba: pointer to lpfc hba data structure.
5368  * @dev_grp: The HBA PCI-Device group number.
5369  *
5370  * This routine is invoked to set up the per HBA PCI-Device group function
5371  * API jump table entries.
5372  *
5373  * Return: 0 if success, otherwise -ENODEV
5374  **/
5375 int
5376 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5377 {
5378         int rc;
5379
5380         /* Set up lpfc PCI-device group */
5381         phba->pci_dev_grp = dev_grp;
5382
5383         /* The LPFC_PCI_DEV_OC uses SLI4 */
5384         if (dev_grp == LPFC_PCI_DEV_OC)
5385                 phba->sli_rev = LPFC_SLI_REV4;
5386
5387         /* Set up device INIT API function jump table */
5388         rc = lpfc_init_api_table_setup(phba, dev_grp);
5389         if (rc)
5390                 return -ENODEV;
5391         /* Set up SCSI API function jump table */
5392         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5393         if (rc)
5394                 return -ENODEV;
5395         /* Set up SLI API function jump table */
5396         rc = lpfc_sli_api_table_setup(phba, dev_grp);
5397         if (rc)
5398                 return -ENODEV;
5399         /* Set up MBOX API function jump table */
5400         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5401         if (rc)
5402                 return -ENODEV;
5403
5404         return 0;
5405 }
5406
5407 /**
5408  * lpfc_log_intr_mode - Log the active interrupt mode
5409  * @phba: pointer to lpfc hba data structure.
5410  * @intr_mode: active interrupt mode adopted.
5411  *
5412  * This routine it invoked to log the currently used active interrupt mode
5413  * to the device.
5414  **/
5415 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5416 {
5417         switch (intr_mode) {
5418         case 0:
5419                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5420                                 "0470 Enable INTx interrupt mode.\n");
5421                 break;
5422         case 1:
5423                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5424                                 "0481 Enabled MSI interrupt mode.\n");
5425                 break;
5426         case 2:
5427                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5428                                 "0480 Enabled MSI-X interrupt mode.\n");
5429                 break;
5430         default:
5431                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5432                                 "0482 Illegal interrupt mode.\n");
5433                 break;
5434         }
5435         return;
5436 }
5437
5438 /**
5439  * lpfc_enable_pci_dev - Enable a generic PCI device.
5440  * @phba: pointer to lpfc hba data structure.
5441  *
5442  * This routine is invoked to enable the PCI device that is common to all
5443  * PCI devices.
5444  *
5445  * Return codes
5446  *      0 - successful
5447  *      other values - error
5448  **/
5449 static int
5450 lpfc_enable_pci_dev(struct lpfc_hba *phba)
5451 {
5452         struct pci_dev *pdev;
5453
5454         /* Obtain PCI device reference */
5455         if (!phba->pcidev)
5456                 goto out_error;
5457         else
5458                 pdev = phba->pcidev;
5459         /* Enable PCI device */
5460         if (pci_enable_device_mem(pdev))
5461                 goto out_error;
5462         /* Request PCI resource for the device */
5463         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
5464                 goto out_disable_device;
5465         /* Set up device as PCI master and save state for EEH */
5466         pci_set_master(pdev);
5467         pci_try_set_mwi(pdev);
5468         pci_save_state(pdev);
5469
5470         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
5471         if (pci_is_pcie(pdev))
5472                 pdev->needs_freset = 1;
5473
5474         return 0;
5475
5476 out_disable_device:
5477         pci_disable_device(pdev);
5478 out_error:
5479         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5480                         "1401 Failed to enable pci device\n");
5481         return -ENODEV;
5482 }
5483
5484 /**
5485  * lpfc_disable_pci_dev - Disable a generic PCI device.
5486  * @phba: pointer to lpfc hba data structure.
5487  *
5488  * This routine is invoked to disable the PCI device that is common to all
5489  * PCI devices.
5490  **/
5491 static void
5492 lpfc_disable_pci_dev(struct lpfc_hba *phba)
5493 {
5494         struct pci_dev *pdev;
5495
5496         /* Obtain PCI device reference */
5497         if (!phba->pcidev)
5498                 return;
5499         else
5500                 pdev = phba->pcidev;
5501         /* Release PCI resource and disable PCI device */
5502         pci_release_mem_regions(pdev);
5503         pci_disable_device(pdev);
5504
5505         return;
5506 }
5507
5508 /**
5509  * lpfc_reset_hba - Reset a hba
5510  * @phba: pointer to lpfc hba data structure.
5511  *
5512  * This routine is invoked to reset a hba device. It brings the HBA
5513  * offline, performs a board restart, and then brings the board back
5514  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
5515  * on outstanding mailbox commands.
5516  **/
5517 void
5518 lpfc_reset_hba(struct lpfc_hba *phba)
5519 {
5520         /* If resets are disabled then set error state and return. */
5521         if (!phba->cfg_enable_hba_reset) {
5522                 phba->link_state = LPFC_HBA_ERROR;
5523                 return;
5524         }
5525         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
5526                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
5527         else
5528                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
5529         lpfc_offline(phba);
5530         lpfc_sli_brdrestart(phba);
5531         lpfc_online(phba);
5532         lpfc_unblock_mgmt_io(phba);
5533 }
5534
5535 /**
5536  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
5537  * @phba: pointer to lpfc hba data structure.
5538  *
5539  * This function enables the PCI SR-IOV virtual functions to a physical
5540  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5541  * enable the number of virtual functions to the physical function. As
5542  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5543  * API call does not considered as an error condition for most of the device.
5544  **/
5545 uint16_t
5546 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
5547 {
5548         struct pci_dev *pdev = phba->pcidev;
5549         uint16_t nr_virtfn;
5550         int pos;
5551
5552         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
5553         if (pos == 0)
5554                 return 0;
5555
5556         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
5557         return nr_virtfn;
5558 }
5559
5560 /**
5561  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
5562  * @phba: pointer to lpfc hba data structure.
5563  * @nr_vfn: number of virtual functions to be enabled.
5564  *
5565  * This function enables the PCI SR-IOV virtual functions to a physical
5566  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5567  * enable the number of virtual functions to the physical function. As
5568  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5569  * API call does not considered as an error condition for most of the device.
5570  **/
5571 int
5572 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
5573 {
5574         struct pci_dev *pdev = phba->pcidev;
5575         uint16_t max_nr_vfn;
5576         int rc;
5577
5578         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
5579         if (nr_vfn > max_nr_vfn) {
5580                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5581                                 "3057 Requested vfs (%d) greater than "
5582                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
5583                 return -EINVAL;
5584         }
5585
5586         rc = pci_enable_sriov(pdev, nr_vfn);
5587         if (rc) {
5588                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5589                                 "2806 Failed to enable sriov on this device "
5590                                 "with vfn number nr_vf:%d, rc:%d\n",
5591                                 nr_vfn, rc);
5592         } else
5593                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5594                                 "2807 Successful enable sriov on this device "
5595                                 "with vfn number nr_vf:%d\n", nr_vfn);
5596         return rc;
5597 }
5598
5599 /**
5600  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5601  * @phba: pointer to lpfc hba data structure.
5602  *
5603  * This routine is invoked to set up the driver internal resources before the
5604  * device specific resource setup to support the HBA device it attached to.
5605  *
5606  * Return codes
5607  *      0 - successful
5608  *      other values - error
5609  **/
5610 static int
5611 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5612 {
5613         struct lpfc_sli *psli = &phba->sli;
5614
5615         /*
5616          * Driver resources common to all SLI revisions
5617          */
5618         atomic_set(&phba->fast_event_count, 0);
5619         spin_lock_init(&phba->hbalock);
5620
5621         /* Initialize ndlp management spinlock */
5622         spin_lock_init(&phba->ndlp_lock);
5623
5624         INIT_LIST_HEAD(&phba->port_list);
5625         INIT_LIST_HEAD(&phba->work_list);
5626         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5627
5628         /* Initialize the wait queue head for the kernel thread */
5629         init_waitqueue_head(&phba->work_waitq);
5630
5631         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5632                         "1403 Protocols supported %s %s %s\n",
5633                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
5634                                 "SCSI" : " "),
5635                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
5636                                 "NVME" : " "),
5637                         (phba->nvmet_support ? "NVMET" : " "));
5638
5639         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5640                 /* Initialize the scsi buffer list used by driver for scsi IO */
5641                 spin_lock_init(&phba->scsi_buf_list_get_lock);
5642                 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5643                 spin_lock_init(&phba->scsi_buf_list_put_lock);
5644                 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5645         }
5646
5647         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
5648                 (phba->nvmet_support == 0)) {
5649                 /* Initialize the NVME buffer list used by driver for NVME IO */
5650                 spin_lock_init(&phba->nvme_buf_list_get_lock);
5651                 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get);
5652                 phba->get_nvme_bufs = 0;
5653                 spin_lock_init(&phba->nvme_buf_list_put_lock);
5654                 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
5655                 phba->put_nvme_bufs = 0;
5656         }
5657
5658         /* Initialize the fabric iocb list */
5659         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5660
5661         /* Initialize list to save ELS buffers */
5662         INIT_LIST_HEAD(&phba->elsbuf);
5663
5664         /* Initialize FCF connection rec list */
5665         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5666
5667         /* Initialize OAS configuration list */
5668         spin_lock_init(&phba->devicelock);
5669         INIT_LIST_HEAD(&phba->luns);
5670
5671         /* MBOX heartbeat timer */
5672         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
5673         /* Fabric block timer */
5674         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
5675         /* EA polling mode timer */
5676         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
5677         /* Heartbeat timer */
5678         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
5679
5680         return 0;
5681 }
5682
5683 /**
5684  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
5685  * @phba: pointer to lpfc hba data structure.
5686  *
5687  * This routine is invoked to set up the driver internal resources specific to
5688  * support the SLI-3 HBA device it attached to.
5689  *
5690  * Return codes
5691  * 0 - successful
5692  * other values - error
5693  **/
5694 static int
5695 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
5696 {
5697         int rc;
5698
5699         /*
5700          * Initialize timers used by driver
5701          */
5702
5703         /* FCP polling mode timer */
5704         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
5705
5706         /* Host attention work mask setup */
5707         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
5708         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
5709
5710         /* Get all the module params for configuring this host */
5711         lpfc_get_cfgparam(phba);
5712         /* Set up phase-1 common device driver resources */
5713
5714         rc = lpfc_setup_driver_resource_phase1(phba);
5715         if (rc)
5716                 return -ENODEV;
5717
5718         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
5719                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
5720                 /* check for menlo minimum sg count */
5721                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
5722                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
5723         }
5724
5725         if (!phba->sli.sli3_ring)
5726                 phba->sli.sli3_ring = kzalloc(LPFC_SLI3_MAX_RING *
5727                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5728         if (!phba->sli.sli3_ring)
5729                 return -ENOMEM;
5730
5731         /*
5732          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5733          * used to create the sg_dma_buf_pool must be dynamically calculated.
5734          */
5735
5736         /* Initialize the host templates the configured values. */
5737         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5738         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5739         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5740
5741         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5742         if (phba->cfg_enable_bg) {
5743                 /*
5744                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5745                  * the FCP rsp, and a BDE for each. Sice we have no control
5746                  * over how many protection data segments the SCSI Layer
5747                  * will hand us (ie: there could be one for every block
5748                  * in the IO), we just allocate enough BDEs to accomidate
5749                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5750                  * minimize the risk of running out.
5751                  */
5752                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5753                         sizeof(struct fcp_rsp) +
5754                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5755
5756                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5757                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5758
5759                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5760                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5761         } else {
5762                 /*
5763                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5764                  * the FCP rsp, a BDE for each, and a BDE for up to
5765                  * cfg_sg_seg_cnt data segments.
5766                  */
5767                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5768                         sizeof(struct fcp_rsp) +
5769                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5770
5771                 /* Total BDEs in BPL for scsi_sg_list */
5772                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5773         }
5774
5775         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5776                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5777                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5778                         phba->cfg_total_seg_cnt);
5779
5780         phba->max_vpi = LPFC_MAX_VPI;
5781         /* This will be set to correct value after config_port mbox */
5782         phba->max_vports = 0;
5783
5784         /*
5785          * Initialize the SLI Layer to run with lpfc HBAs.
5786          */
5787         lpfc_sli_setup(phba);
5788         lpfc_sli_queue_init(phba);
5789
5790         /* Allocate device driver memory */
5791         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5792                 return -ENOMEM;
5793
5794         /*
5795          * Enable sr-iov virtual functions if supported and configured
5796          * through the module parameter.
5797          */
5798         if (phba->cfg_sriov_nr_virtfn > 0) {
5799                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5800                                                  phba->cfg_sriov_nr_virtfn);
5801                 if (rc) {
5802                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5803                                         "2808 Requested number of SR-IOV "
5804                                         "virtual functions (%d) is not "
5805                                         "supported\n",
5806                                         phba->cfg_sriov_nr_virtfn);
5807                         phba->cfg_sriov_nr_virtfn = 0;
5808                 }
5809         }
5810
5811         return 0;
5812 }
5813
5814 /**
5815  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5816  * @phba: pointer to lpfc hba data structure.
5817  *
5818  * This routine is invoked to unset the driver internal resources set up
5819  * specific for supporting the SLI-3 HBA device it attached to.
5820  **/
5821 static void
5822 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5823 {
5824         /* Free device driver memory allocated */
5825         lpfc_mem_free_all(phba);
5826
5827         return;
5828 }
5829
5830 /**
5831  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5832  * @phba: pointer to lpfc hba data structure.
5833  *
5834  * This routine is invoked to set up the driver internal resources specific to
5835  * support the SLI-4 HBA device it attached to.
5836  *
5837  * Return codes
5838  *      0 - successful
5839  *      other values - error
5840  **/
5841 static int
5842 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5843 {
5844         LPFC_MBOXQ_t *mboxq;
5845         MAILBOX_t *mb;
5846         int rc, i, max_buf_size;
5847         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5848         struct lpfc_mqe *mqe;
5849         int longs;
5850         int fof_vectors = 0;
5851         int extra;
5852         uint64_t wwn;
5853         u32 if_type;
5854         u32 if_fam;
5855
5856         phba->sli4_hba.num_online_cpu = num_online_cpus();
5857         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
5858         phba->sli4_hba.curr_disp_cpu = 0;
5859
5860         /* Get all the module params for configuring this host */
5861         lpfc_get_cfgparam(phba);
5862
5863         /* Set up phase-1 common device driver resources */
5864         rc = lpfc_setup_driver_resource_phase1(phba);
5865         if (rc)
5866                 return -ENODEV;
5867
5868         /* Before proceed, wait for POST done and device ready */
5869         rc = lpfc_sli4_post_status_check(phba);
5870         if (rc)
5871                 return -ENODEV;
5872
5873         /*
5874          * Initialize timers used by driver
5875          */
5876
5877         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
5878
5879         /* FCF rediscover timer */
5880         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
5881
5882         /*
5883          * Control structure for handling external multi-buffer mailbox
5884          * command pass-through.
5885          */
5886         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5887                 sizeof(struct lpfc_mbox_ext_buf_ctx));
5888         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5889
5890         phba->max_vpi = LPFC_MAX_VPI;
5891
5892         /* This will be set to correct value after the read_config mbox */
5893         phba->max_vports = 0;
5894
5895         /* Program the default value of vlan_id and fc_map */
5896         phba->valid_vlan = 0;
5897         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5898         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5899         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5900
5901         /*
5902          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5903          * we will associate a new ring, for each EQ/CQ/WQ tuple.
5904          * The WQ create will allocate the ring.
5905          */
5906
5907         /*
5908          * 1 for cmd, 1 for rsp, NVME adds an extra one
5909          * for boundary conditions in its max_sgl_segment template.
5910          */
5911         extra = 2;
5912         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
5913                 extra++;
5914
5915         /*
5916          * It doesn't matter what family our adapter is in, we are
5917          * limited to 2 Pages, 512 SGEs, for our SGL.
5918          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5919          */
5920         max_buf_size = (2 * SLI4_PAGE_SIZE);
5921         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - extra)
5922                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - extra;
5923
5924         /*
5925          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
5926          * used to create the sg_dma_buf_pool must be calculated.
5927          */
5928         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
5929                 /*
5930                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
5931                  * the FCP rsp, and a SGE. Sice we have no control
5932                  * over how many protection segments the SCSI Layer
5933                  * will hand us (ie: there could be one for every block
5934                  * in the IO), just allocate enough SGEs to accomidate
5935                  * our max amount and we need to limit lpfc_sg_seg_cnt
5936                  * to minimize the risk of running out.
5937                  */
5938                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5939                                 sizeof(struct fcp_rsp) + max_buf_size;
5940
5941                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5942                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5943
5944                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5945                         phba->cfg_sg_seg_cnt =
5946                                 LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5947         } else {
5948                 /*
5949                  * The scsi_buf for a regular I/O holds the FCP cmnd,
5950                  * the FCP rsp, a SGE for each, and a SGE for up to
5951                  * cfg_sg_seg_cnt data segments.
5952                  */
5953                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5954                                 sizeof(struct fcp_rsp) +
5955                                 ((phba->cfg_sg_seg_cnt + extra) *
5956                                 sizeof(struct sli4_sge));
5957
5958                 /* Total SGEs for scsi_sg_list */
5959                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
5960
5961                 /*
5962                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
5963                  * need to post 1 page for the SGL.
5964                  */
5965         }
5966
5967         /* Initialize the host templates with the updated values. */
5968         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5969         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5970         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5971
5972         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5973                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5974         else
5975                 phba->cfg_sg_dma_buf_size =
5976                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5977
5978         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5979                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5980                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5981                         phba->cfg_total_seg_cnt);
5982
5983         /* Initialize buffer queue management fields */
5984         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
5985         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5986         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5987
5988         /*
5989          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5990          */
5991         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5992                 /* Initialize the Abort scsi buffer list used by driver */
5993                 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5994                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5995         }
5996
5997         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
5998                 /* Initialize the Abort nvme buffer list used by driver */
5999                 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock);
6000                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
6001                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6002                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
6003         }
6004
6005         /* This abort list used by worker thread */
6006         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
6007         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
6008
6009         /*
6010          * Initialize driver internal slow-path work queues
6011          */
6012
6013         /* Driver internel slow-path CQ Event pool */
6014         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
6015         /* Response IOCB work queue list */
6016         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
6017         /* Asynchronous event CQ Event work queue list */
6018         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
6019         /* Fast-path XRI aborted CQ Event work queue list */
6020         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
6021         /* Slow-path XRI aborted CQ Event work queue list */
6022         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
6023         /* Receive queue CQ Event work queue list */
6024         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
6025
6026         /* Initialize extent block lists. */
6027         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
6028         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
6029         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
6030         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
6031
6032         /* Initialize mboxq lists. If the early init routines fail
6033          * these lists need to be correctly initialized.
6034          */
6035         INIT_LIST_HEAD(&phba->sli.mboxq);
6036         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
6037
6038         /* initialize optic_state to 0xFF */
6039         phba->sli4_hba.lnk_info.optic_state = 0xff;
6040
6041         /* Allocate device driver memory */
6042         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
6043         if (rc)
6044                 return -ENOMEM;
6045
6046         /* IF Type 2 ports get initialized now. */
6047         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
6048             LPFC_SLI_INTF_IF_TYPE_2) {
6049                 rc = lpfc_pci_function_reset(phba);
6050                 if (unlikely(rc)) {
6051                         rc = -ENODEV;
6052                         goto out_free_mem;
6053                 }
6054                 phba->temp_sensor_support = 1;
6055         }
6056
6057         /* Create the bootstrap mailbox command */
6058         rc = lpfc_create_bootstrap_mbox(phba);
6059         if (unlikely(rc))
6060                 goto out_free_mem;
6061
6062         /* Set up the host's endian order with the device. */
6063         rc = lpfc_setup_endian_order(phba);
6064         if (unlikely(rc))
6065                 goto out_free_bsmbx;
6066
6067         /* Set up the hba's configuration parameters. */
6068         rc = lpfc_sli4_read_config(phba);
6069         if (unlikely(rc))
6070                 goto out_free_bsmbx;
6071         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6072         if (unlikely(rc))
6073                 goto out_free_bsmbx;
6074
6075         /* IF Type 0 ports get initialized now. */
6076         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6077             LPFC_SLI_INTF_IF_TYPE_0) {
6078                 rc = lpfc_pci_function_reset(phba);
6079                 if (unlikely(rc))
6080                         goto out_free_bsmbx;
6081         }
6082
6083         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6084                                                        GFP_KERNEL);
6085         if (!mboxq) {
6086                 rc = -ENOMEM;
6087                 goto out_free_bsmbx;
6088         }
6089
6090         /* Check for NVMET being configured */
6091         phba->nvmet_support = 0;
6092         if (lpfc_enable_nvmet_cnt) {
6093
6094                 /* First get WWN of HBA instance */
6095                 lpfc_read_nv(phba, mboxq);
6096                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6097                 if (rc != MBX_SUCCESS) {
6098                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6099                                         "6016 Mailbox failed , mbxCmd x%x "
6100                                         "READ_NV, mbxStatus x%x\n",
6101                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6102                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6103                         mempool_free(mboxq, phba->mbox_mem_pool);
6104                         rc = -EIO;
6105                         goto out_free_bsmbx;
6106                 }
6107                 mb = &mboxq->u.mb;
6108                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6109                        sizeof(uint64_t));
6110                 wwn = cpu_to_be64(wwn);
6111                 phba->sli4_hba.wwnn.u.name = wwn;
6112                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6113                        sizeof(uint64_t));
6114                 /* wwn is WWPN of HBA instance */
6115                 wwn = cpu_to_be64(wwn);
6116                 phba->sli4_hba.wwpn.u.name = wwn;
6117
6118                 /* Check to see if it matches any module parameter */
6119                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6120                         if (wwn == lpfc_enable_nvmet[i]) {
6121 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6122                                 if (lpfc_nvmet_mem_alloc(phba))
6123                                         break;
6124
6125                                 phba->nvmet_support = 1; /* a match */
6126
6127                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6128                                                 "6017 NVME Target %016llx\n",
6129                                                 wwn);
6130 #else
6131                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6132                                                 "6021 Can't enable NVME Target."
6133                                                 " NVME_TARGET_FC infrastructure"
6134                                                 " is not in kernel\n");
6135 #endif
6136                                 break;
6137                         }
6138                 }
6139         }
6140
6141         lpfc_nvme_mod_param_dep(phba);
6142
6143         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
6144         lpfc_supported_pages(mboxq);
6145         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6146         if (!rc) {
6147                 mqe = &mboxq->u.mqe;
6148                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
6149                        LPFC_MAX_SUPPORTED_PAGES);
6150                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
6151                         switch (pn_page[i]) {
6152                         case LPFC_SLI4_PARAMETERS:
6153                                 phba->sli4_hba.pc_sli4_params.supported = 1;
6154                                 break;
6155                         default:
6156                                 break;
6157                         }
6158                 }
6159                 /* Read the port's SLI4 Parameters capabilities if supported. */
6160                 if (phba->sli4_hba.pc_sli4_params.supported)
6161                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
6162                 if (rc) {
6163                         mempool_free(mboxq, phba->mbox_mem_pool);
6164                         rc = -EIO;
6165                         goto out_free_bsmbx;
6166                 }
6167         }
6168
6169         /*
6170          * Get sli4 parameters that override parameters from Port capabilities.
6171          * If this call fails, it isn't critical unless the SLI4 parameters come
6172          * back in conflict.
6173          */
6174         rc = lpfc_get_sli4_parameters(phba, mboxq);
6175         if (rc) {
6176                 if_type = bf_get(lpfc_sli_intf_if_type,
6177                                  &phba->sli4_hba.sli_intf);
6178                 if_fam = bf_get(lpfc_sli_intf_sli_family,
6179                                 &phba->sli4_hba.sli_intf);
6180                 if (phba->sli4_hba.extents_in_use &&
6181                     phba->sli4_hba.rpi_hdrs_in_use) {
6182                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6183                                 "2999 Unsupported SLI4 Parameters "
6184                                 "Extents and RPI headers enabled.\n");
6185                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6186                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
6187                                 mempool_free(mboxq, phba->mbox_mem_pool);
6188                                 rc = -EIO;
6189                                 goto out_free_bsmbx;
6190                         }
6191                 }
6192                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6193                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
6194                         mempool_free(mboxq, phba->mbox_mem_pool);
6195                         rc = -EIO;
6196                         goto out_free_bsmbx;
6197                 }
6198         }
6199
6200         mempool_free(mboxq, phba->mbox_mem_pool);
6201
6202         /* Verify OAS is supported */
6203         lpfc_sli4_oas_verify(phba);
6204         if (phba->cfg_fof)
6205                 fof_vectors = 1;
6206
6207         /* Verify all the SLI4 queues */
6208         rc = lpfc_sli4_queue_verify(phba);
6209         if (rc)
6210                 goto out_free_bsmbx;
6211
6212         /* Create driver internal CQE event pool */
6213         rc = lpfc_sli4_cq_event_pool_create(phba);
6214         if (rc)
6215                 goto out_free_bsmbx;
6216
6217         /* Initialize sgl lists per host */
6218         lpfc_init_sgl_list(phba);
6219
6220         /* Allocate and initialize active sgl array */
6221         rc = lpfc_init_active_sgl_array(phba);
6222         if (rc) {
6223                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6224                                 "1430 Failed to initialize sgl list.\n");
6225                 goto out_destroy_cq_event_pool;
6226         }
6227         rc = lpfc_sli4_init_rpi_hdrs(phba);
6228         if (rc) {
6229                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6230                                 "1432 Failed to initialize rpi headers.\n");
6231                 goto out_free_active_sgl;
6232         }
6233
6234         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6235         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6236         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
6237                                          GFP_KERNEL);
6238         if (!phba->fcf.fcf_rr_bmask) {
6239                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6240                                 "2759 Failed allocate memory for FCF round "
6241                                 "robin failover bmask\n");
6242                 rc = -ENOMEM;
6243                 goto out_remove_rpi_hdrs;
6244         }
6245
6246         phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs,
6247                                                 sizeof(struct lpfc_hba_eq_hdl),
6248                                                 GFP_KERNEL);
6249         if (!phba->sli4_hba.hba_eq_hdl) {
6250                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6251                                 "2572 Failed allocate memory for "
6252                                 "fast-path per-EQ handle array\n");
6253                 rc = -ENOMEM;
6254                 goto out_free_fcf_rr_bmask;
6255         }
6256
6257         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu,
6258                                         sizeof(struct lpfc_vector_map_info),
6259                                         GFP_KERNEL);
6260         if (!phba->sli4_hba.cpu_map) {
6261                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6262                                 "3327 Failed allocate memory for msi-x "
6263                                 "interrupt vector mapping\n");
6264                 rc = -ENOMEM;
6265                 goto out_free_hba_eq_hdl;
6266         }
6267         if (lpfc_used_cpu == NULL) {
6268                 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t),
6269                                                 GFP_KERNEL);
6270                 if (!lpfc_used_cpu) {
6271                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6272                                         "3335 Failed allocate memory for msi-x "
6273                                         "interrupt vector mapping\n");
6274                         kfree(phba->sli4_hba.cpu_map);
6275                         rc = -ENOMEM;
6276                         goto out_free_hba_eq_hdl;
6277                 }
6278                 for (i = 0; i < lpfc_present_cpu; i++)
6279                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
6280         }
6281
6282         /*
6283          * Enable sr-iov virtual functions if supported and configured
6284          * through the module parameter.
6285          */
6286         if (phba->cfg_sriov_nr_virtfn > 0) {
6287                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6288                                                  phba->cfg_sriov_nr_virtfn);
6289                 if (rc) {
6290                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6291                                         "3020 Requested number of SR-IOV "
6292                                         "virtual functions (%d) is not "
6293                                         "supported\n",
6294                                         phba->cfg_sriov_nr_virtfn);
6295                         phba->cfg_sriov_nr_virtfn = 0;
6296                 }
6297         }
6298
6299         return 0;
6300
6301 out_free_hba_eq_hdl:
6302         kfree(phba->sli4_hba.hba_eq_hdl);
6303 out_free_fcf_rr_bmask:
6304         kfree(phba->fcf.fcf_rr_bmask);
6305 out_remove_rpi_hdrs:
6306         lpfc_sli4_remove_rpi_hdrs(phba);
6307 out_free_active_sgl:
6308         lpfc_free_active_sgl(phba);
6309 out_destroy_cq_event_pool:
6310         lpfc_sli4_cq_event_pool_destroy(phba);
6311 out_free_bsmbx:
6312         lpfc_destroy_bootstrap_mbox(phba);
6313 out_free_mem:
6314         lpfc_mem_free(phba);
6315         return rc;
6316 }
6317
6318 /**
6319  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6320  * @phba: pointer to lpfc hba data structure.
6321  *
6322  * This routine is invoked to unset the driver internal resources set up
6323  * specific for supporting the SLI-4 HBA device it attached to.
6324  **/
6325 static void
6326 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6327 {
6328         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6329
6330         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6331         kfree(phba->sli4_hba.cpu_map);
6332         phba->sli4_hba.num_present_cpu = 0;
6333         phba->sli4_hba.num_online_cpu = 0;
6334         phba->sli4_hba.curr_disp_cpu = 0;
6335
6336         /* Free memory allocated for fast-path work queue handles */
6337         kfree(phba->sli4_hba.hba_eq_hdl);
6338
6339         /* Free the allocated rpi headers. */
6340         lpfc_sli4_remove_rpi_hdrs(phba);
6341         lpfc_sli4_remove_rpis(phba);
6342
6343         /* Free eligible FCF index bmask */
6344         kfree(phba->fcf.fcf_rr_bmask);
6345
6346         /* Free the ELS sgl list */
6347         lpfc_free_active_sgl(phba);
6348         lpfc_free_els_sgl_list(phba);
6349         lpfc_free_nvmet_sgl_list(phba);
6350
6351         /* Free the completion queue EQ event pool */
6352         lpfc_sli4_cq_event_release_all(phba);
6353         lpfc_sli4_cq_event_pool_destroy(phba);
6354
6355         /* Release resource identifiers. */
6356         lpfc_sli4_dealloc_resource_identifiers(phba);
6357
6358         /* Free the bsmbx region. */
6359         lpfc_destroy_bootstrap_mbox(phba);
6360
6361         /* Free the SLI Layer memory with SLI4 HBAs */
6362         lpfc_mem_free_all(phba);
6363
6364         /* Free the current connect table */
6365         list_for_each_entry_safe(conn_entry, next_conn_entry,
6366                 &phba->fcf_conn_rec_list, list) {
6367                 list_del_init(&conn_entry->list);
6368                 kfree(conn_entry);
6369         }
6370
6371         return;
6372 }
6373
6374 /**
6375  * lpfc_init_api_table_setup - Set up init api function jump table
6376  * @phba: The hba struct for which this call is being executed.
6377  * @dev_grp: The HBA PCI-Device group number.
6378  *
6379  * This routine sets up the device INIT interface API function jump table
6380  * in @phba struct.
6381  *
6382  * Returns: 0 - success, -ENODEV - failure.
6383  **/
6384 int
6385 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6386 {
6387         phba->lpfc_hba_init_link = lpfc_hba_init_link;
6388         phba->lpfc_hba_down_link = lpfc_hba_down_link;
6389         phba->lpfc_selective_reset = lpfc_selective_reset;
6390         switch (dev_grp) {
6391         case LPFC_PCI_DEV_LP:
6392                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
6393                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
6394                 phba->lpfc_stop_port = lpfc_stop_port_s3;
6395                 break;
6396         case LPFC_PCI_DEV_OC:
6397                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
6398                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
6399                 phba->lpfc_stop_port = lpfc_stop_port_s4;
6400                 break;
6401         default:
6402                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6403                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
6404                                 dev_grp);
6405                 return -ENODEV;
6406                 break;
6407         }
6408         return 0;
6409 }
6410
6411 /**
6412  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
6413  * @phba: pointer to lpfc hba data structure.
6414  *
6415  * This routine is invoked to set up the driver internal resources after the
6416  * device specific resource setup to support the HBA device it attached to.
6417  *
6418  * Return codes
6419  *      0 - successful
6420  *      other values - error
6421  **/
6422 static int
6423 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
6424 {
6425         int error;
6426
6427         /* Startup the kernel thread for this host adapter. */
6428         phba->worker_thread = kthread_run(lpfc_do_work, phba,
6429                                           "lpfc_worker_%d", phba->brd_no);
6430         if (IS_ERR(phba->worker_thread)) {
6431                 error = PTR_ERR(phba->worker_thread);
6432                 return error;
6433         }
6434
6435         /* The lpfc_wq workqueue for deferred irq use, is only used for SLI4 */
6436         if (phba->sli_rev == LPFC_SLI_REV4)
6437                 phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
6438         else
6439                 phba->wq = NULL;
6440
6441         return 0;
6442 }
6443
6444 /**
6445  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
6446  * @phba: pointer to lpfc hba data structure.
6447  *
6448  * This routine is invoked to unset the driver internal resources set up after
6449  * the device specific resource setup for supporting the HBA device it
6450  * attached to.
6451  **/
6452 static void
6453 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
6454 {
6455         if (phba->wq) {
6456                 flush_workqueue(phba->wq);
6457                 destroy_workqueue(phba->wq);
6458                 phba->wq = NULL;
6459         }
6460
6461         /* Stop kernel worker thread */
6462         if (phba->worker_thread)
6463                 kthread_stop(phba->worker_thread);
6464 }
6465
6466 /**
6467  * lpfc_free_iocb_list - Free iocb list.
6468  * @phba: pointer to lpfc hba data structure.
6469  *
6470  * This routine is invoked to free the driver's IOCB list and memory.
6471  **/
6472 void
6473 lpfc_free_iocb_list(struct lpfc_hba *phba)
6474 {
6475         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
6476
6477         spin_lock_irq(&phba->hbalock);
6478         list_for_each_entry_safe(iocbq_entry, iocbq_next,
6479                                  &phba->lpfc_iocb_list, list) {
6480                 list_del(&iocbq_entry->list);
6481                 kfree(iocbq_entry);
6482                 phba->total_iocbq_bufs--;
6483         }
6484         spin_unlock_irq(&phba->hbalock);
6485
6486         return;
6487 }
6488
6489 /**
6490  * lpfc_init_iocb_list - Allocate and initialize iocb list.
6491  * @phba: pointer to lpfc hba data structure.
6492  *
6493  * This routine is invoked to allocate and initizlize the driver's IOCB
6494  * list and set up the IOCB tag array accordingly.
6495  *
6496  * Return codes
6497  *      0 - successful
6498  *      other values - error
6499  **/
6500 int
6501 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
6502 {
6503         struct lpfc_iocbq *iocbq_entry = NULL;
6504         uint16_t iotag;
6505         int i;
6506
6507         /* Initialize and populate the iocb list per host.  */
6508         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
6509         for (i = 0; i < iocb_count; i++) {
6510                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
6511                 if (iocbq_entry == NULL) {
6512                         printk(KERN_ERR "%s: only allocated %d iocbs of "
6513                                 "expected %d count. Unloading driver.\n",
6514                                 __func__, i, LPFC_IOCB_LIST_CNT);
6515                         goto out_free_iocbq;
6516                 }
6517
6518                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
6519                 if (iotag == 0) {
6520                         kfree(iocbq_entry);
6521                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
6522                                 "Unloading driver.\n", __func__);
6523                         goto out_free_iocbq;
6524                 }
6525                 iocbq_entry->sli4_lxritag = NO_XRI;
6526                 iocbq_entry->sli4_xritag = NO_XRI;
6527
6528                 spin_lock_irq(&phba->hbalock);
6529                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
6530                 phba->total_iocbq_bufs++;
6531                 spin_unlock_irq(&phba->hbalock);
6532         }
6533
6534         return 0;
6535
6536 out_free_iocbq:
6537         lpfc_free_iocb_list(phba);
6538
6539         return -ENOMEM;
6540 }
6541
6542 /**
6543  * lpfc_free_sgl_list - Free a given sgl list.
6544  * @phba: pointer to lpfc hba data structure.
6545  * @sglq_list: pointer to the head of sgl list.
6546  *
6547  * This routine is invoked to free a give sgl list and memory.
6548  **/
6549 void
6550 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
6551 {
6552         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6553
6554         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
6555                 list_del(&sglq_entry->list);
6556                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
6557                 kfree(sglq_entry);
6558         }
6559 }
6560
6561 /**
6562  * lpfc_free_els_sgl_list - Free els sgl list.
6563  * @phba: pointer to lpfc hba data structure.
6564  *
6565  * This routine is invoked to free the driver's els sgl list and memory.
6566  **/
6567 static void
6568 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
6569 {
6570         LIST_HEAD(sglq_list);
6571
6572         /* Retrieve all els sgls from driver list */
6573         spin_lock_irq(&phba->hbalock);
6574         spin_lock(&phba->sli4_hba.sgl_list_lock);
6575         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
6576         spin_unlock(&phba->sli4_hba.sgl_list_lock);
6577         spin_unlock_irq(&phba->hbalock);
6578
6579         /* Now free the sgl list */
6580         lpfc_free_sgl_list(phba, &sglq_list);
6581 }
6582
6583 /**
6584  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
6585  * @phba: pointer to lpfc hba data structure.
6586  *
6587  * This routine is invoked to free the driver's nvmet sgl list and memory.
6588  **/
6589 static void
6590 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
6591 {
6592         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6593         LIST_HEAD(sglq_list);
6594
6595         /* Retrieve all nvmet sgls from driver list */
6596         spin_lock_irq(&phba->hbalock);
6597         spin_lock(&phba->sli4_hba.sgl_list_lock);
6598         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
6599         spin_unlock(&phba->sli4_hba.sgl_list_lock);
6600         spin_unlock_irq(&phba->hbalock);
6601
6602         /* Now free the sgl list */
6603         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
6604                 list_del(&sglq_entry->list);
6605                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
6606                 kfree(sglq_entry);
6607         }
6608
6609         /* Update the nvmet_xri_cnt to reflect no current sgls.
6610          * The next initialization cycle sets the count and allocates
6611          * the sgls over again.
6612          */
6613         phba->sli4_hba.nvmet_xri_cnt = 0;
6614 }
6615
6616 /**
6617  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
6618  * @phba: pointer to lpfc hba data structure.
6619  *
6620  * This routine is invoked to allocate the driver's active sgl memory.
6621  * This array will hold the sglq_entry's for active IOs.
6622  **/
6623 static int
6624 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
6625 {
6626         int size;
6627         size = sizeof(struct lpfc_sglq *);
6628         size *= phba->sli4_hba.max_cfg_param.max_xri;
6629
6630         phba->sli4_hba.lpfc_sglq_active_list =
6631                 kzalloc(size, GFP_KERNEL);
6632         if (!phba->sli4_hba.lpfc_sglq_active_list)
6633                 return -ENOMEM;
6634         return 0;
6635 }
6636
6637 /**
6638  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
6639  * @phba: pointer to lpfc hba data structure.
6640  *
6641  * This routine is invoked to walk through the array of active sglq entries
6642  * and free all of the resources.
6643  * This is just a place holder for now.
6644  **/
6645 static void
6646 lpfc_free_active_sgl(struct lpfc_hba *phba)
6647 {
6648         kfree(phba->sli4_hba.lpfc_sglq_active_list);
6649 }
6650
6651 /**
6652  * lpfc_init_sgl_list - Allocate and initialize sgl list.
6653  * @phba: pointer to lpfc hba data structure.
6654  *
6655  * This routine is invoked to allocate and initizlize the driver's sgl
6656  * list and set up the sgl xritag tag array accordingly.
6657  *
6658  **/
6659 static void
6660 lpfc_init_sgl_list(struct lpfc_hba *phba)
6661 {
6662         /* Initialize and populate the sglq list per host/VF. */
6663         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
6664         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
6665         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
6666         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6667
6668         /* els xri-sgl book keeping */
6669         phba->sli4_hba.els_xri_cnt = 0;
6670
6671         /* scsi xri-buffer book keeping */
6672         phba->sli4_hba.scsi_xri_cnt = 0;
6673
6674         /* nvme xri-buffer book keeping */
6675         phba->sli4_hba.nvme_xri_cnt = 0;
6676 }
6677
6678 /**
6679  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
6680  * @phba: pointer to lpfc hba data structure.
6681  *
6682  * This routine is invoked to post rpi header templates to the
6683  * port for those SLI4 ports that do not support extents.  This routine
6684  * posts a PAGE_SIZE memory region to the port to hold up to
6685  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
6686  * and should be called only when interrupts are disabled.
6687  *
6688  * Return codes
6689  *      0 - successful
6690  *      -ERROR - otherwise.
6691  **/
6692 int
6693 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
6694 {
6695         int rc = 0;
6696         struct lpfc_rpi_hdr *rpi_hdr;
6697
6698         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
6699         if (!phba->sli4_hba.rpi_hdrs_in_use)
6700                 return rc;
6701         if (phba->sli4_hba.extents_in_use)
6702                 return -EIO;
6703
6704         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
6705         if (!rpi_hdr) {
6706                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6707                                 "0391 Error during rpi post operation\n");
6708                 lpfc_sli4_remove_rpis(phba);
6709                 rc = -ENODEV;
6710         }
6711
6712         return rc;
6713 }
6714
6715 /**
6716  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
6717  * @phba: pointer to lpfc hba data structure.
6718  *
6719  * This routine is invoked to allocate a single 4KB memory region to
6720  * support rpis and stores them in the phba.  This single region
6721  * provides support for up to 64 rpis.  The region is used globally
6722  * by the device.
6723  *
6724  * Returns:
6725  *   A valid rpi hdr on success.
6726  *   A NULL pointer on any failure.
6727  **/
6728 struct lpfc_rpi_hdr *
6729 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
6730 {
6731         uint16_t rpi_limit, curr_rpi_range;
6732         struct lpfc_dmabuf *dmabuf;
6733         struct lpfc_rpi_hdr *rpi_hdr;
6734
6735         /*
6736          * If the SLI4 port supports extents, posting the rpi header isn't
6737          * required.  Set the expected maximum count and let the actual value
6738          * get set when extents are fully allocated.
6739          */
6740         if (!phba->sli4_hba.rpi_hdrs_in_use)
6741                 return NULL;
6742         if (phba->sli4_hba.extents_in_use)
6743                 return NULL;
6744
6745         /* The limit on the logical index is just the max_rpi count. */
6746         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
6747
6748         spin_lock_irq(&phba->hbalock);
6749         /*
6750          * Establish the starting RPI in this header block.  The starting
6751          * rpi is normalized to a zero base because the physical rpi is
6752          * port based.
6753          */
6754         curr_rpi_range = phba->sli4_hba.next_rpi;
6755         spin_unlock_irq(&phba->hbalock);
6756
6757         /* Reached full RPI range */
6758         if (curr_rpi_range == rpi_limit)
6759                 return NULL;
6760
6761         /*
6762          * First allocate the protocol header region for the port.  The
6763          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
6764          */
6765         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6766         if (!dmabuf)
6767                 return NULL;
6768
6769         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
6770                                            LPFC_HDR_TEMPLATE_SIZE,
6771                                            &dmabuf->phys, GFP_KERNEL);
6772         if (!dmabuf->virt) {
6773                 rpi_hdr = NULL;
6774                 goto err_free_dmabuf;
6775         }
6776
6777         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
6778                 rpi_hdr = NULL;
6779                 goto err_free_coherent;
6780         }
6781
6782         /* Save the rpi header data for cleanup later. */
6783         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6784         if (!rpi_hdr)
6785                 goto err_free_coherent;
6786
6787         rpi_hdr->dmabuf = dmabuf;
6788         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6789         rpi_hdr->page_count = 1;
6790         spin_lock_irq(&phba->hbalock);
6791
6792         /* The rpi_hdr stores the logical index only. */
6793         rpi_hdr->start_rpi = curr_rpi_range;
6794         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
6795         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6796
6797         spin_unlock_irq(&phba->hbalock);
6798         return rpi_hdr;
6799
6800  err_free_coherent:
6801         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6802                           dmabuf->virt, dmabuf->phys);
6803  err_free_dmabuf:
6804         kfree(dmabuf);
6805         return NULL;
6806 }
6807
6808 /**
6809  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6810  * @phba: pointer to lpfc hba data structure.
6811  *
6812  * This routine is invoked to remove all memory resources allocated
6813  * to support rpis for SLI4 ports not supporting extents. This routine
6814  * presumes the caller has released all rpis consumed by fabric or port
6815  * logins and is prepared to have the header pages removed.
6816  **/
6817 void
6818 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6819 {
6820         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6821
6822         if (!phba->sli4_hba.rpi_hdrs_in_use)
6823                 goto exit;
6824
6825         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6826                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6827                 list_del(&rpi_hdr->list);
6828                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6829                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6830                 kfree(rpi_hdr->dmabuf);
6831                 kfree(rpi_hdr);
6832         }
6833  exit:
6834         /* There are no rpis available to the port now. */
6835         phba->sli4_hba.next_rpi = 0;
6836 }
6837
6838 /**
6839  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6840  * @pdev: pointer to pci device data structure.
6841  *
6842  * This routine is invoked to allocate the driver hba data structure for an
6843  * HBA device. If the allocation is successful, the phba reference to the
6844  * PCI device data structure is set.
6845  *
6846  * Return codes
6847  *      pointer to @phba - successful
6848  *      NULL - error
6849  **/
6850 static struct lpfc_hba *
6851 lpfc_hba_alloc(struct pci_dev *pdev)
6852 {
6853         struct lpfc_hba *phba;
6854
6855         /* Allocate memory for HBA structure */
6856         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6857         if (!phba) {
6858                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6859                 return NULL;
6860         }
6861
6862         /* Set reference to PCI device in HBA structure */
6863         phba->pcidev = pdev;
6864
6865         /* Assign an unused board number */
6866         phba->brd_no = lpfc_get_instance();
6867         if (phba->brd_no < 0) {
6868                 kfree(phba);
6869                 return NULL;
6870         }
6871         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
6872
6873         spin_lock_init(&phba->ct_ev_lock);
6874         INIT_LIST_HEAD(&phba->ct_ev_waiters);
6875
6876         return phba;
6877 }
6878
6879 /**
6880  * lpfc_hba_free - Free driver hba data structure with a device.
6881  * @phba: pointer to lpfc hba data structure.
6882  *
6883  * This routine is invoked to free the driver hba data structure with an
6884  * HBA device.
6885  **/
6886 static void
6887 lpfc_hba_free(struct lpfc_hba *phba)
6888 {
6889         /* Release the driver assigned board number */
6890         idr_remove(&lpfc_hba_index, phba->brd_no);
6891
6892         /* Free memory allocated with sli3 rings */
6893         kfree(phba->sli.sli3_ring);
6894         phba->sli.sli3_ring = NULL;
6895
6896         kfree(phba);
6897         return;
6898 }
6899
6900 /**
6901  * lpfc_create_shost - Create hba physical port with associated scsi host.
6902  * @phba: pointer to lpfc hba data structure.
6903  *
6904  * This routine is invoked to create HBA physical port and associate a SCSI
6905  * host with it.
6906  *
6907  * Return codes
6908  *      0 - successful
6909  *      other values - error
6910  **/
6911 static int
6912 lpfc_create_shost(struct lpfc_hba *phba)
6913 {
6914         struct lpfc_vport *vport;
6915         struct Scsi_Host  *shost;
6916
6917         /* Initialize HBA FC structure */
6918         phba->fc_edtov = FF_DEF_EDTOV;
6919         phba->fc_ratov = FF_DEF_RATOV;
6920         phba->fc_altov = FF_DEF_ALTOV;
6921         phba->fc_arbtov = FF_DEF_ARBTOV;
6922
6923         atomic_set(&phba->sdev_cnt, 0);
6924         atomic_set(&phba->fc4ScsiInputRequests, 0);
6925         atomic_set(&phba->fc4ScsiOutputRequests, 0);
6926         atomic_set(&phba->fc4ScsiControlRequests, 0);
6927         atomic_set(&phba->fc4ScsiIoCmpls, 0);
6928         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6929         if (!vport)
6930                 return -ENODEV;
6931
6932         shost = lpfc_shost_from_vport(vport);
6933         phba->pport = vport;
6934
6935         if (phba->nvmet_support) {
6936                 /* Only 1 vport (pport) will support NVME target */
6937                 if (phba->txrdy_payload_pool == NULL) {
6938                         phba->txrdy_payload_pool = dma_pool_create(
6939                                 "txrdy_pool", &phba->pcidev->dev,
6940                                 TXRDY_PAYLOAD_LEN, 16, 0);
6941                         if (phba->txrdy_payload_pool) {
6942                                 phba->targetport = NULL;
6943                                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
6944                                 lpfc_printf_log(phba, KERN_INFO,
6945                                                 LOG_INIT | LOG_NVME_DISC,
6946                                                 "6076 NVME Target Found\n");
6947                         }
6948                 }
6949         }
6950
6951         lpfc_debugfs_initialize(vport);
6952         /* Put reference to SCSI host to driver's device private data */
6953         pci_set_drvdata(phba->pcidev, shost);
6954
6955         /*
6956          * At this point we are fully registered with PSA. In addition,
6957          * any initial discovery should be completed.
6958          */
6959         vport->load_flag |= FC_ALLOW_FDMI;
6960         if (phba->cfg_enable_SmartSAN ||
6961             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
6962
6963                 /* Setup appropriate attribute masks */
6964                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
6965                 if (phba->cfg_enable_SmartSAN)
6966                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
6967                 else
6968                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
6969         }
6970         return 0;
6971 }
6972
6973 /**
6974  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6975  * @phba: pointer to lpfc hba data structure.
6976  *
6977  * This routine is invoked to destroy HBA physical port and the associated
6978  * SCSI host.
6979  **/
6980 static void
6981 lpfc_destroy_shost(struct lpfc_hba *phba)
6982 {
6983         struct lpfc_vport *vport = phba->pport;
6984
6985         /* Destroy physical port that associated with the SCSI host */
6986         destroy_port(vport);
6987
6988         return;
6989 }
6990
6991 /**
6992  * lpfc_setup_bg - Setup Block guard structures and debug areas.
6993  * @phba: pointer to lpfc hba data structure.
6994  * @shost: the shost to be used to detect Block guard settings.
6995  *
6996  * This routine sets up the local Block guard protocol settings for @shost.
6997  * This routine also allocates memory for debugging bg buffers.
6998  **/
6999 static void
7000 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
7001 {
7002         uint32_t old_mask;
7003         uint32_t old_guard;
7004
7005         int pagecnt = 10;
7006         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7007                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7008                                 "1478 Registering BlockGuard with the "
7009                                 "SCSI layer\n");
7010
7011                 old_mask = phba->cfg_prot_mask;
7012                 old_guard = phba->cfg_prot_guard;
7013
7014                 /* Only allow supported values */
7015                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
7016                         SHOST_DIX_TYPE0_PROTECTION |
7017                         SHOST_DIX_TYPE1_PROTECTION);
7018                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
7019                                          SHOST_DIX_GUARD_CRC);
7020
7021                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
7022                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
7023                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
7024
7025                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7026                         if ((old_mask != phba->cfg_prot_mask) ||
7027                                 (old_guard != phba->cfg_prot_guard))
7028                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7029                                         "1475 Registering BlockGuard with the "
7030                                         "SCSI layer: mask %d  guard %d\n",
7031                                         phba->cfg_prot_mask,
7032                                         phba->cfg_prot_guard);
7033
7034                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
7035                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
7036                 } else
7037                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7038                                 "1479 Not Registering BlockGuard with the SCSI "
7039                                 "layer, Bad protection parameters: %d %d\n",
7040                                 old_mask, old_guard);
7041         }
7042
7043         if (!_dump_buf_data) {
7044                 while (pagecnt) {
7045                         spin_lock_init(&_dump_buf_lock);
7046                         _dump_buf_data =
7047                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
7048                         if (_dump_buf_data) {
7049                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7050                                         "9043 BLKGRD: allocated %d pages for "
7051                                        "_dump_buf_data at 0x%p\n",
7052                                        (1 << pagecnt), _dump_buf_data);
7053                                 _dump_buf_data_order = pagecnt;
7054                                 memset(_dump_buf_data, 0,
7055                                        ((1 << PAGE_SHIFT) << pagecnt));
7056                                 break;
7057                         } else
7058                                 --pagecnt;
7059                 }
7060                 if (!_dump_buf_data_order)
7061                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7062                                 "9044 BLKGRD: ERROR unable to allocate "
7063                                "memory for hexdump\n");
7064         } else
7065                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7066                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
7067                        "\n", _dump_buf_data);
7068         if (!_dump_buf_dif) {
7069                 while (pagecnt) {
7070                         _dump_buf_dif =
7071                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
7072                         if (_dump_buf_dif) {
7073                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7074                                         "9046 BLKGRD: allocated %d pages for "
7075                                        "_dump_buf_dif at 0x%p\n",
7076                                        (1 << pagecnt), _dump_buf_dif);
7077                                 _dump_buf_dif_order = pagecnt;
7078                                 memset(_dump_buf_dif, 0,
7079                                        ((1 << PAGE_SHIFT) << pagecnt));
7080                                 break;
7081                         } else
7082                                 --pagecnt;
7083                 }
7084                 if (!_dump_buf_dif_order)
7085                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7086                         "9047 BLKGRD: ERROR unable to allocate "
7087                                "memory for hexdump\n");
7088         } else
7089                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7090                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
7091                        _dump_buf_dif);
7092 }
7093
7094 /**
7095  * lpfc_post_init_setup - Perform necessary device post initialization setup.
7096  * @phba: pointer to lpfc hba data structure.
7097  *
7098  * This routine is invoked to perform all the necessary post initialization
7099  * setup for the device.
7100  **/
7101 static void
7102 lpfc_post_init_setup(struct lpfc_hba *phba)
7103 {
7104         struct Scsi_Host  *shost;
7105         struct lpfc_adapter_event_header adapter_event;
7106
7107         /* Get the default values for Model Name and Description */
7108         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7109
7110         /*
7111          * hba setup may have changed the hba_queue_depth so we need to
7112          * adjust the value of can_queue.
7113          */
7114         shost = pci_get_drvdata(phba->pcidev);
7115         shost->can_queue = phba->cfg_hba_queue_depth - 10;
7116         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
7117                 lpfc_setup_bg(phba, shost);
7118
7119         lpfc_host_attrib_init(shost);
7120
7121         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7122                 spin_lock_irq(shost->host_lock);
7123                 lpfc_poll_start_timer(phba);
7124                 spin_unlock_irq(shost->host_lock);
7125         }
7126
7127         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7128                         "0428 Perform SCSI scan\n");
7129         /* Send board arrival event to upper layer */
7130         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7131         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7132         fc_host_post_vendor_event(shost, fc_get_event_number(),
7133                                   sizeof(adapter_event),
7134                                   (char *) &adapter_event,
7135                                   LPFC_NL_VENDOR_ID);
7136         return;
7137 }
7138
7139 /**
7140  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7141  * @phba: pointer to lpfc hba data structure.
7142  *
7143  * This routine is invoked to set up the PCI device memory space for device
7144  * with SLI-3 interface spec.
7145  *
7146  * Return codes
7147  *      0 - successful
7148  *      other values - error
7149  **/
7150 static int
7151 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7152 {
7153         struct pci_dev *pdev;
7154         unsigned long bar0map_len, bar2map_len;
7155         int i, hbq_count;
7156         void *ptr;
7157         int error = -ENODEV;
7158
7159         /* Obtain PCI device reference */
7160         if (!phba->pcidev)
7161                 return error;
7162         else
7163                 pdev = phba->pcidev;
7164
7165         /* Set the device DMA mask size */
7166         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7167          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7168                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7169                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7170                         return error;
7171                 }
7172         }
7173
7174         /* Get the bus address of Bar0 and Bar2 and the number of bytes
7175          * required by each mapping.
7176          */
7177         phba->pci_bar0_map = pci_resource_start(pdev, 0);
7178         bar0map_len = pci_resource_len(pdev, 0);
7179
7180         phba->pci_bar2_map = pci_resource_start(pdev, 2);
7181         bar2map_len = pci_resource_len(pdev, 2);
7182
7183         /* Map HBA SLIM to a kernel virtual address. */
7184         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7185         if (!phba->slim_memmap_p) {
7186                 dev_printk(KERN_ERR, &pdev->dev,
7187                            "ioremap failed for SLIM memory.\n");
7188                 goto out;
7189         }
7190
7191         /* Map HBA Control Registers to a kernel virtual address. */
7192         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7193         if (!phba->ctrl_regs_memmap_p) {
7194                 dev_printk(KERN_ERR, &pdev->dev,
7195                            "ioremap failed for HBA control registers.\n");
7196                 goto out_iounmap_slim;
7197         }
7198
7199         /* Allocate memory for SLI-2 structures */
7200         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7201                                                 &phba->slim2p.phys, GFP_KERNEL);
7202         if (!phba->slim2p.virt)
7203                 goto out_iounmap;
7204
7205         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7206         phba->mbox_ext = (phba->slim2p.virt +
7207                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7208         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7209         phba->IOCBs = (phba->slim2p.virt +
7210                        offsetof(struct lpfc_sli2_slim, IOCBs));
7211
7212         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7213                                                  lpfc_sli_hbq_size(),
7214                                                  &phba->hbqslimp.phys,
7215                                                  GFP_KERNEL);
7216         if (!phba->hbqslimp.virt)
7217                 goto out_free_slim;
7218
7219         hbq_count = lpfc_sli_hbq_count();
7220         ptr = phba->hbqslimp.virt;
7221         for (i = 0; i < hbq_count; ++i) {
7222                 phba->hbqs[i].hbq_virt = ptr;
7223                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7224                 ptr += (lpfc_hbq_defs[i]->entry_count *
7225                         sizeof(struct lpfc_hbq_entry));
7226         }
7227         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7228         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7229
7230         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7231
7232         phba->MBslimaddr = phba->slim_memmap_p;
7233         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7234         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7235         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7236         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7237
7238         return 0;
7239
7240 out_free_slim:
7241         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7242                           phba->slim2p.virt, phba->slim2p.phys);
7243 out_iounmap:
7244         iounmap(phba->ctrl_regs_memmap_p);
7245 out_iounmap_slim:
7246         iounmap(phba->slim_memmap_p);
7247 out:
7248         return error;
7249 }
7250
7251 /**
7252  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7253  * @phba: pointer to lpfc hba data structure.
7254  *
7255  * This routine is invoked to unset the PCI device memory space for device
7256  * with SLI-3 interface spec.
7257  **/
7258 static void
7259 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7260 {
7261         struct pci_dev *pdev;
7262
7263         /* Obtain PCI device reference */
7264         if (!phba->pcidev)
7265                 return;
7266         else
7267                 pdev = phba->pcidev;
7268
7269         /* Free coherent DMA memory allocated */
7270         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7271                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7272         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7273                           phba->slim2p.virt, phba->slim2p.phys);
7274
7275         /* I/O memory unmap */
7276         iounmap(phba->ctrl_regs_memmap_p);
7277         iounmap(phba->slim_memmap_p);
7278
7279         return;
7280 }
7281
7282 /**
7283  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7284  * @phba: pointer to lpfc hba data structure.
7285  *
7286  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7287  * done and check status.
7288  *
7289  * Return 0 if successful, otherwise -ENODEV.
7290  **/
7291 int
7292 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7293 {
7294         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7295         struct lpfc_register reg_data;
7296         int i, port_error = 0;
7297         uint32_t if_type;
7298
7299         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7300         memset(&reg_data, 0, sizeof(reg_data));
7301         if (!phba->sli4_hba.PSMPHRregaddr)
7302                 return -ENODEV;
7303
7304         /* Wait up to 30 seconds for the SLI Port POST done and ready */
7305         for (i = 0; i < 3000; i++) {
7306                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7307                         &portsmphr_reg.word0) ||
7308                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7309                         /* Port has a fatal POST error, break out */
7310                         port_error = -ENODEV;
7311                         break;
7312                 }
7313                 if (LPFC_POST_STAGE_PORT_READY ==
7314                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7315                         break;
7316                 msleep(10);
7317         }
7318
7319         /*
7320          * If there was a port error during POST, then don't proceed with
7321          * other register reads as the data may not be valid.  Just exit.
7322          */
7323         if (port_error) {
7324                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7325                         "1408 Port Failed POST - portsmphr=0x%x, "
7326                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7327                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7328                         portsmphr_reg.word0,
7329                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7330                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7331                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7332                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7333                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7334                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7335                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7336                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7337         } else {
7338                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7339                                 "2534 Device Info: SLIFamily=0x%x, "
7340                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7341                                 "SLIHint_2=0x%x, FT=0x%x\n",
7342                                 bf_get(lpfc_sli_intf_sli_family,
7343                                        &phba->sli4_hba.sli_intf),
7344                                 bf_get(lpfc_sli_intf_slirev,
7345                                        &phba->sli4_hba.sli_intf),
7346                                 bf_get(lpfc_sli_intf_if_type,
7347                                        &phba->sli4_hba.sli_intf),
7348                                 bf_get(lpfc_sli_intf_sli_hint1,
7349                                        &phba->sli4_hba.sli_intf),
7350                                 bf_get(lpfc_sli_intf_sli_hint2,
7351                                        &phba->sli4_hba.sli_intf),
7352                                 bf_get(lpfc_sli_intf_func_type,
7353                                        &phba->sli4_hba.sli_intf));
7354                 /*
7355                  * Check for other Port errors during the initialization
7356                  * process.  Fail the load if the port did not come up
7357                  * correctly.
7358                  */
7359                 if_type = bf_get(lpfc_sli_intf_if_type,
7360                                  &phba->sli4_hba.sli_intf);
7361                 switch (if_type) {
7362                 case LPFC_SLI_INTF_IF_TYPE_0:
7363                         phba->sli4_hba.ue_mask_lo =
7364                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7365                         phba->sli4_hba.ue_mask_hi =
7366                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7367                         uerrlo_reg.word0 =
7368                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7369                         uerrhi_reg.word0 =
7370                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7371                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7372                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7373                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7374                                                 "1422 Unrecoverable Error "
7375                                                 "Detected during POST "
7376                                                 "uerr_lo_reg=0x%x, "
7377                                                 "uerr_hi_reg=0x%x, "
7378                                                 "ue_mask_lo_reg=0x%x, "
7379                                                 "ue_mask_hi_reg=0x%x\n",
7380                                                 uerrlo_reg.word0,
7381                                                 uerrhi_reg.word0,
7382                                                 phba->sli4_hba.ue_mask_lo,
7383                                                 phba->sli4_hba.ue_mask_hi);
7384                                 port_error = -ENODEV;
7385                         }
7386                         break;
7387                 case LPFC_SLI_INTF_IF_TYPE_2:
7388                 case LPFC_SLI_INTF_IF_TYPE_6:
7389                         /* Final checks.  The port status should be clean. */
7390                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7391                                 &reg_data.word0) ||
7392                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
7393                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
7394                                 phba->work_status[0] =
7395                                         readl(phba->sli4_hba.u.if_type2.
7396                                               ERR1regaddr);
7397                                 phba->work_status[1] =
7398                                         readl(phba->sli4_hba.u.if_type2.
7399                                               ERR2regaddr);
7400                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7401                                         "2888 Unrecoverable port error "
7402                                         "following POST: port status reg "
7403                                         "0x%x, port_smphr reg 0x%x, "
7404                                         "error 1=0x%x, error 2=0x%x\n",
7405                                         reg_data.word0,
7406                                         portsmphr_reg.word0,
7407                                         phba->work_status[0],
7408                                         phba->work_status[1]);
7409                                 port_error = -ENODEV;
7410                         }
7411                         break;
7412                 case LPFC_SLI_INTF_IF_TYPE_1:
7413                 default:
7414                         break;
7415                 }
7416         }
7417         return port_error;
7418 }
7419
7420 /**
7421  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
7422  * @phba: pointer to lpfc hba data structure.
7423  * @if_type:  The SLI4 interface type getting configured.
7424  *
7425  * This routine is invoked to set up SLI4 BAR0 PCI config space register
7426  * memory map.
7427  **/
7428 static void
7429 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7430 {
7431         switch (if_type) {
7432         case LPFC_SLI_INTF_IF_TYPE_0:
7433                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
7434                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
7435                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
7436                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
7437                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
7438                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
7439                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
7440                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
7441                 phba->sli4_hba.SLIINTFregaddr =
7442                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7443                 break;
7444         case LPFC_SLI_INTF_IF_TYPE_2:
7445                 phba->sli4_hba.u.if_type2.EQDregaddr =
7446                         phba->sli4_hba.conf_regs_memmap_p +
7447                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
7448                 phba->sli4_hba.u.if_type2.ERR1regaddr =
7449                         phba->sli4_hba.conf_regs_memmap_p +
7450                                                 LPFC_CTL_PORT_ER1_OFFSET;
7451                 phba->sli4_hba.u.if_type2.ERR2regaddr =
7452                         phba->sli4_hba.conf_regs_memmap_p +
7453                                                 LPFC_CTL_PORT_ER2_OFFSET;
7454                 phba->sli4_hba.u.if_type2.CTRLregaddr =
7455                         phba->sli4_hba.conf_regs_memmap_p +
7456                                                 LPFC_CTL_PORT_CTL_OFFSET;
7457                 phba->sli4_hba.u.if_type2.STATUSregaddr =
7458                         phba->sli4_hba.conf_regs_memmap_p +
7459                                                 LPFC_CTL_PORT_STA_OFFSET;
7460                 phba->sli4_hba.SLIINTFregaddr =
7461                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7462                 phba->sli4_hba.PSMPHRregaddr =
7463                         phba->sli4_hba.conf_regs_memmap_p +
7464                                                 LPFC_CTL_PORT_SEM_OFFSET;
7465                 phba->sli4_hba.RQDBregaddr =
7466                         phba->sli4_hba.conf_regs_memmap_p +
7467                                                 LPFC_ULP0_RQ_DOORBELL;
7468                 phba->sli4_hba.WQDBregaddr =
7469                         phba->sli4_hba.conf_regs_memmap_p +
7470                                                 LPFC_ULP0_WQ_DOORBELL;
7471                 phba->sli4_hba.CQDBregaddr =
7472                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
7473                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
7474                 phba->sli4_hba.MQDBregaddr =
7475                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
7476                 phba->sli4_hba.BMBXregaddr =
7477                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
7478                 break;
7479         case LPFC_SLI_INTF_IF_TYPE_6:
7480                 phba->sli4_hba.u.if_type2.EQDregaddr =
7481                         phba->sli4_hba.conf_regs_memmap_p +
7482                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
7483                 phba->sli4_hba.u.if_type2.ERR1regaddr =
7484                         phba->sli4_hba.conf_regs_memmap_p +
7485                                                 LPFC_CTL_PORT_ER1_OFFSET;
7486                 phba->sli4_hba.u.if_type2.ERR2regaddr =
7487                         phba->sli4_hba.conf_regs_memmap_p +
7488                                                 LPFC_CTL_PORT_ER2_OFFSET;
7489                 phba->sli4_hba.u.if_type2.CTRLregaddr =
7490                         phba->sli4_hba.conf_regs_memmap_p +
7491                                                 LPFC_CTL_PORT_CTL_OFFSET;
7492                 phba->sli4_hba.u.if_type2.STATUSregaddr =
7493                         phba->sli4_hba.conf_regs_memmap_p +
7494                                                 LPFC_CTL_PORT_STA_OFFSET;
7495                 phba->sli4_hba.PSMPHRregaddr =
7496                         phba->sli4_hba.conf_regs_memmap_p +
7497                                                 LPFC_CTL_PORT_SEM_OFFSET;
7498                 phba->sli4_hba.BMBXregaddr =
7499                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
7500                 break;
7501         case LPFC_SLI_INTF_IF_TYPE_1:
7502         default:
7503                 dev_printk(KERN_ERR, &phba->pcidev->dev,
7504                            "FATAL - unsupported SLI4 interface type - %d\n",
7505                            if_type);
7506                 break;
7507         }
7508 }
7509
7510 /**
7511  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
7512  * @phba: pointer to lpfc hba data structure.
7513  *
7514  * This routine is invoked to set up SLI4 BAR1 register memory map.
7515  **/
7516 static void
7517 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7518 {
7519         switch (if_type) {
7520         case LPFC_SLI_INTF_IF_TYPE_0:
7521                 phba->sli4_hba.PSMPHRregaddr =
7522                         phba->sli4_hba.ctrl_regs_memmap_p +
7523                         LPFC_SLIPORT_IF0_SMPHR;
7524                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7525                         LPFC_HST_ISR0;
7526                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7527                         LPFC_HST_IMR0;
7528                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7529                         LPFC_HST_ISCR0;
7530                 break;
7531         case LPFC_SLI_INTF_IF_TYPE_6:
7532                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7533                         LPFC_IF6_RQ_DOORBELL;
7534                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7535                         LPFC_IF6_WQ_DOORBELL;
7536                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7537                         LPFC_IF6_CQ_DOORBELL;
7538                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7539                         LPFC_IF6_EQ_DOORBELL;
7540                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7541                         LPFC_IF6_MQ_DOORBELL;
7542                 break;
7543         case LPFC_SLI_INTF_IF_TYPE_2:
7544         case LPFC_SLI_INTF_IF_TYPE_1:
7545         default:
7546                 dev_err(&phba->pcidev->dev,
7547                            "FATAL - unsupported SLI4 interface type - %d\n",
7548                            if_type);
7549                 break;
7550         }
7551 }
7552
7553 /**
7554  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
7555  * @phba: pointer to lpfc hba data structure.
7556  * @vf: virtual function number
7557  *
7558  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
7559  * based on the given viftual function number, @vf.
7560  *
7561  * Return 0 if successful, otherwise -ENODEV.
7562  **/
7563 static int
7564 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
7565 {
7566         if (vf > LPFC_VIR_FUNC_MAX)
7567                 return -ENODEV;
7568
7569         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7570                                 vf * LPFC_VFR_PAGE_SIZE +
7571                                         LPFC_ULP0_RQ_DOORBELL);
7572         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7573                                 vf * LPFC_VFR_PAGE_SIZE +
7574                                         LPFC_ULP0_WQ_DOORBELL);
7575         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7576                                 vf * LPFC_VFR_PAGE_SIZE +
7577                                         LPFC_EQCQ_DOORBELL);
7578         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
7579         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7580                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
7581         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7582                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
7583         return 0;
7584 }
7585
7586 /**
7587  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
7588  * @phba: pointer to lpfc hba data structure.
7589  *
7590  * This routine is invoked to create the bootstrap mailbox
7591  * region consistent with the SLI-4 interface spec.  This
7592  * routine allocates all memory necessary to communicate
7593  * mailbox commands to the port and sets up all alignment
7594  * needs.  No locks are expected to be held when calling
7595  * this routine.
7596  *
7597  * Return codes
7598  *      0 - successful
7599  *      -ENOMEM - could not allocated memory.
7600  **/
7601 static int
7602 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
7603 {
7604         uint32_t bmbx_size;
7605         struct lpfc_dmabuf *dmabuf;
7606         struct dma_address *dma_address;
7607         uint32_t pa_addr;
7608         uint64_t phys_addr;
7609
7610         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7611         if (!dmabuf)
7612                 return -ENOMEM;
7613
7614         /*
7615          * The bootstrap mailbox region is comprised of 2 parts
7616          * plus an alignment restriction of 16 bytes.
7617          */
7618         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
7619         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
7620                                            &dmabuf->phys, GFP_KERNEL);
7621         if (!dmabuf->virt) {
7622                 kfree(dmabuf);
7623                 return -ENOMEM;
7624         }
7625
7626         /*
7627          * Initialize the bootstrap mailbox pointers now so that the register
7628          * operations are simple later.  The mailbox dma address is required
7629          * to be 16-byte aligned.  Also align the virtual memory as each
7630          * maibox is copied into the bmbx mailbox region before issuing the
7631          * command to the port.
7632          */
7633         phba->sli4_hba.bmbx.dmabuf = dmabuf;
7634         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
7635
7636         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
7637                                               LPFC_ALIGN_16_BYTE);
7638         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
7639                                               LPFC_ALIGN_16_BYTE);
7640
7641         /*
7642          * Set the high and low physical addresses now.  The SLI4 alignment
7643          * requirement is 16 bytes and the mailbox is posted to the port
7644          * as two 30-bit addresses.  The other data is a bit marking whether
7645          * the 30-bit address is the high or low address.
7646          * Upcast bmbx aphys to 64bits so shift instruction compiles
7647          * clean on 32 bit machines.
7648          */
7649         dma_address = &phba->sli4_hba.bmbx.dma_address;
7650         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
7651         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
7652         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
7653                                            LPFC_BMBX_BIT1_ADDR_HI);
7654
7655         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
7656         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
7657                                            LPFC_BMBX_BIT1_ADDR_LO);
7658         return 0;
7659 }
7660
7661 /**
7662  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
7663  * @phba: pointer to lpfc hba data structure.
7664  *
7665  * This routine is invoked to teardown the bootstrap mailbox
7666  * region and release all host resources. This routine requires
7667  * the caller to ensure all mailbox commands recovered, no
7668  * additional mailbox comands are sent, and interrupts are disabled
7669  * before calling this routine.
7670  *
7671  **/
7672 static void
7673 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
7674 {
7675         dma_free_coherent(&phba->pcidev->dev,
7676                           phba->sli4_hba.bmbx.bmbx_size,
7677                           phba->sli4_hba.bmbx.dmabuf->virt,
7678                           phba->sli4_hba.bmbx.dmabuf->phys);
7679
7680         kfree(phba->sli4_hba.bmbx.dmabuf);
7681         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
7682 }
7683
7684 /**
7685  * lpfc_sli4_read_config - Get the config parameters.
7686  * @phba: pointer to lpfc hba data structure.
7687  *
7688  * This routine is invoked to read the configuration parameters from the HBA.
7689  * The configuration parameters are used to set the base and maximum values
7690  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
7691  * allocation for the port.
7692  *
7693  * Return codes
7694  *      0 - successful
7695  *      -ENOMEM - No available memory
7696  *      -EIO - The mailbox failed to complete successfully.
7697  **/
7698 int
7699 lpfc_sli4_read_config(struct lpfc_hba *phba)
7700 {
7701         LPFC_MBOXQ_t *pmb;
7702         struct lpfc_mbx_read_config *rd_config;
7703         union  lpfc_sli4_cfg_shdr *shdr;
7704         uint32_t shdr_status, shdr_add_status;
7705         struct lpfc_mbx_get_func_cfg *get_func_cfg;
7706         struct lpfc_rsrc_desc_fcfcoe *desc;
7707         char *pdesc_0;
7708         uint16_t forced_link_speed;
7709         uint32_t if_type;
7710         int length, i, rc = 0, rc2;
7711
7712         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7713         if (!pmb) {
7714                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7715                                 "2011 Unable to allocate memory for issuing "
7716                                 "SLI_CONFIG_SPECIAL mailbox command\n");
7717                 return -ENOMEM;
7718         }
7719
7720         lpfc_read_config(phba, pmb);
7721
7722         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7723         if (rc != MBX_SUCCESS) {
7724                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7725                         "2012 Mailbox failed , mbxCmd x%x "
7726                         "READ_CONFIG, mbxStatus x%x\n",
7727                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
7728                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
7729                 rc = -EIO;
7730         } else {
7731                 rd_config = &pmb->u.mqe.un.rd_config;
7732                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
7733                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
7734                         phba->sli4_hba.lnk_info.lnk_tp =
7735                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
7736                         phba->sli4_hba.lnk_info.lnk_no =
7737                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
7738                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7739                                         "3081 lnk_type:%d, lnk_numb:%d\n",
7740                                         phba->sli4_hba.lnk_info.lnk_tp,
7741                                         phba->sli4_hba.lnk_info.lnk_no);
7742                 } else
7743                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
7744                                         "3082 Mailbox (x%x) returned ldv:x0\n",
7745                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
7746                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
7747                         phba->bbcredit_support = 1;
7748                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
7749                 }
7750
7751                 phba->sli4_hba.extents_in_use =
7752                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
7753                 phba->sli4_hba.max_cfg_param.max_xri =
7754                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
7755                 phba->sli4_hba.max_cfg_param.xri_base =
7756                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
7757                 phba->sli4_hba.max_cfg_param.max_vpi =
7758                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
7759                 phba->sli4_hba.max_cfg_param.vpi_base =
7760                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
7761                 phba->sli4_hba.max_cfg_param.max_rpi =
7762                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
7763                 phba->sli4_hba.max_cfg_param.rpi_base =
7764                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
7765                 phba->sli4_hba.max_cfg_param.max_vfi =
7766                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
7767                 phba->sli4_hba.max_cfg_param.vfi_base =
7768                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
7769                 phba->sli4_hba.max_cfg_param.max_fcfi =
7770                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
7771                 phba->sli4_hba.max_cfg_param.max_eq =
7772                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
7773                 phba->sli4_hba.max_cfg_param.max_rq =
7774                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
7775                 phba->sli4_hba.max_cfg_param.max_wq =
7776                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
7777                 phba->sli4_hba.max_cfg_param.max_cq =
7778                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
7779                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
7780                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
7781                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
7782                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
7783                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
7784                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
7785                 phba->max_vports = phba->max_vpi;
7786                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7787                                 "2003 cfg params Extents? %d "
7788                                 "XRI(B:%d M:%d), "
7789                                 "VPI(B:%d M:%d) "
7790                                 "VFI(B:%d M:%d) "
7791                                 "RPI(B:%d M:%d) "
7792                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
7793                                 phba->sli4_hba.extents_in_use,
7794                                 phba->sli4_hba.max_cfg_param.xri_base,
7795                                 phba->sli4_hba.max_cfg_param.max_xri,
7796                                 phba->sli4_hba.max_cfg_param.vpi_base,
7797                                 phba->sli4_hba.max_cfg_param.max_vpi,
7798                                 phba->sli4_hba.max_cfg_param.vfi_base,
7799                                 phba->sli4_hba.max_cfg_param.max_vfi,
7800                                 phba->sli4_hba.max_cfg_param.rpi_base,
7801                                 phba->sli4_hba.max_cfg_param.max_rpi,
7802                                 phba->sli4_hba.max_cfg_param.max_fcfi,
7803                                 phba->sli4_hba.max_cfg_param.max_eq,
7804                                 phba->sli4_hba.max_cfg_param.max_cq,
7805                                 phba->sli4_hba.max_cfg_param.max_wq,
7806                                 phba->sli4_hba.max_cfg_param.max_rq);
7807
7808                 /*
7809                  * Calculate NVME queue resources based on how
7810                  * many WQ/CQs are available.
7811                  */
7812                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
7813                         length = phba->sli4_hba.max_cfg_param.max_wq;
7814                         if (phba->sli4_hba.max_cfg_param.max_cq <
7815                             phba->sli4_hba.max_cfg_param.max_wq)
7816                                 length = phba->sli4_hba.max_cfg_param.max_cq;
7817
7818                         /*
7819                          * Whats left after this can go toward NVME.
7820                          * The minus 6 accounts for ELS, NVME LS, MBOX
7821                          * fof plus a couple extra. When configured for
7822                          * NVMET, FCP io channel WQs are not created.
7823                          */
7824                         length -= 6;
7825                         if (!phba->nvmet_support)
7826                                 length -= phba->cfg_fcp_io_channel;
7827
7828                         if (phba->cfg_nvme_io_channel > length) {
7829                                 lpfc_printf_log(
7830                                         phba, KERN_ERR, LOG_SLI,
7831                                         "2005 Reducing NVME IO channel to %d: "
7832                                         "WQ %d CQ %d NVMEIO %d FCPIO %d\n",
7833                                         length,
7834                                         phba->sli4_hba.max_cfg_param.max_wq,
7835                                         phba->sli4_hba.max_cfg_param.max_cq,
7836                                         phba->cfg_nvme_io_channel,
7837                                         phba->cfg_fcp_io_channel);
7838
7839                                 phba->cfg_nvme_io_channel = length;
7840                         }
7841                 }
7842         }
7843
7844         if (rc)
7845                 goto read_cfg_out;
7846
7847         /* Update link speed if forced link speed is supported */
7848         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7849         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
7850                 forced_link_speed =
7851                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
7852                 if (forced_link_speed) {
7853                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
7854
7855                         switch (forced_link_speed) {
7856                         case LINK_SPEED_1G:
7857                                 phba->cfg_link_speed =
7858                                         LPFC_USER_LINK_SPEED_1G;
7859                                 break;
7860                         case LINK_SPEED_2G:
7861                                 phba->cfg_link_speed =
7862                                         LPFC_USER_LINK_SPEED_2G;
7863                                 break;
7864                         case LINK_SPEED_4G:
7865                                 phba->cfg_link_speed =
7866                                         LPFC_USER_LINK_SPEED_4G;
7867                                 break;
7868                         case LINK_SPEED_8G:
7869                                 phba->cfg_link_speed =
7870                                         LPFC_USER_LINK_SPEED_8G;
7871                                 break;
7872                         case LINK_SPEED_10G:
7873                                 phba->cfg_link_speed =
7874                                         LPFC_USER_LINK_SPEED_10G;
7875                                 break;
7876                         case LINK_SPEED_16G:
7877                                 phba->cfg_link_speed =
7878                                         LPFC_USER_LINK_SPEED_16G;
7879                                 break;
7880                         case LINK_SPEED_32G:
7881                                 phba->cfg_link_speed =
7882                                         LPFC_USER_LINK_SPEED_32G;
7883                                 break;
7884                         case LINK_SPEED_64G:
7885                                 phba->cfg_link_speed =
7886                                         LPFC_USER_LINK_SPEED_64G;
7887                                 break;
7888                         case 0xffff:
7889                                 phba->cfg_link_speed =
7890                                         LPFC_USER_LINK_SPEED_AUTO;
7891                                 break;
7892                         default:
7893                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7894                                                 "0047 Unrecognized link "
7895                                                 "speed : %d\n",
7896                                                 forced_link_speed);
7897                                 phba->cfg_link_speed =
7898                                         LPFC_USER_LINK_SPEED_AUTO;
7899                         }
7900                 }
7901         }
7902
7903         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
7904         length = phba->sli4_hba.max_cfg_param.max_xri -
7905                         lpfc_sli4_get_els_iocb_cnt(phba);
7906         if (phba->cfg_hba_queue_depth > length) {
7907                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7908                                 "3361 HBA queue depth changed from %d to %d\n",
7909                                 phba->cfg_hba_queue_depth, length);
7910                 phba->cfg_hba_queue_depth = length;
7911         }
7912
7913         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
7914             LPFC_SLI_INTF_IF_TYPE_2)
7915                 goto read_cfg_out;
7916
7917         /* get the pf# and vf# for SLI4 if_type 2 port */
7918         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
7919                   sizeof(struct lpfc_sli4_cfg_mhdr));
7920         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
7921                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
7922                          length, LPFC_SLI4_MBX_EMBED);
7923
7924         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7925         shdr = (union lpfc_sli4_cfg_shdr *)
7926                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
7927         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7928         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7929         if (rc2 || shdr_status || shdr_add_status) {
7930                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7931                                 "3026 Mailbox failed , mbxCmd x%x "
7932                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
7933                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
7934                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
7935                 goto read_cfg_out;
7936         }
7937
7938         /* search for fc_fcoe resrouce descriptor */
7939         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
7940
7941         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
7942         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
7943         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
7944         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
7945                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
7946         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
7947                 goto read_cfg_out;
7948
7949         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
7950                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
7951                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
7952                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
7953                         phba->sli4_hba.iov.pf_number =
7954                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
7955                         phba->sli4_hba.iov.vf_number =
7956                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
7957                         break;
7958                 }
7959         }
7960
7961         if (i < LPFC_RSRC_DESC_MAX_NUM)
7962                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7963                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7964                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7965                                 phba->sli4_hba.iov.vf_number);
7966         else
7967                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7968                                 "3028 GET_FUNCTION_CONFIG: failed to find "
7969                                 "Resrouce Descriptor:x%x\n",
7970                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
7971
7972 read_cfg_out:
7973         mempool_free(pmb, phba->mbox_mem_pool);
7974         return rc;
7975 }
7976
7977 /**
7978  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7979  * @phba: pointer to lpfc hba data structure.
7980  *
7981  * This routine is invoked to setup the port-side endian order when
7982  * the port if_type is 0.  This routine has no function for other
7983  * if_types.
7984  *
7985  * Return codes
7986  *      0 - successful
7987  *      -ENOMEM - No available memory
7988  *      -EIO - The mailbox failed to complete successfully.
7989  **/
7990 static int
7991 lpfc_setup_endian_order(struct lpfc_hba *phba)
7992 {
7993         LPFC_MBOXQ_t *mboxq;
7994         uint32_t if_type, rc = 0;
7995         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7996                                       HOST_ENDIAN_HIGH_WORD1};
7997
7998         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7999         switch (if_type) {
8000         case LPFC_SLI_INTF_IF_TYPE_0:
8001                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8002                                                        GFP_KERNEL);
8003                 if (!mboxq) {
8004                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8005                                         "0492 Unable to allocate memory for "
8006                                         "issuing SLI_CONFIG_SPECIAL mailbox "
8007                                         "command\n");
8008                         return -ENOMEM;
8009                 }
8010
8011                 /*
8012                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
8013                  * two words to contain special data values and no other data.
8014                  */
8015                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
8016                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
8017                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8018                 if (rc != MBX_SUCCESS) {
8019                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8020                                         "0493 SLI_CONFIG_SPECIAL mailbox "
8021                                         "failed with status x%x\n",
8022                                         rc);
8023                         rc = -EIO;
8024                 }
8025                 mempool_free(mboxq, phba->mbox_mem_pool);
8026                 break;
8027         case LPFC_SLI_INTF_IF_TYPE_6:
8028         case LPFC_SLI_INTF_IF_TYPE_2:
8029         case LPFC_SLI_INTF_IF_TYPE_1:
8030         default:
8031                 break;
8032         }
8033         return rc;
8034 }
8035
8036 /**
8037  * lpfc_sli4_queue_verify - Verify and update EQ counts
8038  * @phba: pointer to lpfc hba data structure.
8039  *
8040  * This routine is invoked to check the user settable queue counts for EQs.
8041  * After this routine is called the counts will be set to valid values that
8042  * adhere to the constraints of the system's interrupt vectors and the port's
8043  * queue resources.
8044  *
8045  * Return codes
8046  *      0 - successful
8047  *      -ENOMEM - No available memory
8048  **/
8049 static int
8050 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
8051 {
8052         int io_channel;
8053         int fof_vectors = phba->cfg_fof ? 1 : 0;
8054
8055         /*
8056          * Sanity check for configured queue parameters against the run-time
8057          * device parameters
8058          */
8059
8060         /* Sanity check on HBA EQ parameters */
8061         io_channel = phba->io_channel_irqs;
8062
8063         if (phba->sli4_hba.num_online_cpu < io_channel) {
8064                 lpfc_printf_log(phba,
8065                                 KERN_ERR, LOG_INIT,
8066                                 "3188 Reducing IO channels to match number of "
8067                                 "online CPUs: from %d to %d\n",
8068                                 io_channel, phba->sli4_hba.num_online_cpu);
8069                 io_channel = phba->sli4_hba.num_online_cpu;
8070         }
8071
8072         if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) {
8073                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8074                                 "2575 Reducing IO channels to match number of "
8075                                 "available EQs: from %d to %d\n",
8076                                 io_channel,
8077                                 phba->sli4_hba.max_cfg_param.max_eq);
8078                 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors;
8079         }
8080
8081         /* The actual number of FCP / NVME event queues adopted */
8082         if (io_channel != phba->io_channel_irqs)
8083                 phba->io_channel_irqs = io_channel;
8084         if (phba->cfg_fcp_io_channel > io_channel)
8085                 phba->cfg_fcp_io_channel = io_channel;
8086         if (phba->cfg_nvme_io_channel > io_channel)
8087                 phba->cfg_nvme_io_channel = io_channel;
8088         if (phba->nvmet_support) {
8089                 if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq)
8090                         phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel;
8091         }
8092         if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
8093                 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
8094
8095         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8096                         "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n",
8097                         phba->io_channel_irqs, phba->cfg_fcp_io_channel,
8098                         phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq);
8099
8100         /* Get EQ depth from module parameter, fake the default for now */
8101         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8102         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8103
8104         /* Get CQ depth from module parameter, fake the default for now */
8105         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8106         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8107         return 0;
8108 }
8109
8110 static int
8111 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx)
8112 {
8113         struct lpfc_queue *qdesc;
8114
8115         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8116                                       phba->sli4_hba.cq_esize,
8117                                       LPFC_CQE_EXP_COUNT);
8118         if (!qdesc) {
8119                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8120                                 "0508 Failed allocate fast-path NVME CQ (%d)\n",
8121                                 wqidx);
8122                 return 1;
8123         }
8124         qdesc->qe_valid = 1;
8125         phba->sli4_hba.nvme_cq[wqidx] = qdesc;
8126
8127         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8128                                       LPFC_WQE128_SIZE, LPFC_WQE_EXP_COUNT);
8129         if (!qdesc) {
8130                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8131                                 "0509 Failed allocate fast-path NVME WQ (%d)\n",
8132                                 wqidx);
8133                 return 1;
8134         }
8135         phba->sli4_hba.nvme_wq[wqidx] = qdesc;
8136         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8137         return 0;
8138 }
8139
8140 static int
8141 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx)
8142 {
8143         struct lpfc_queue *qdesc;
8144         uint32_t wqesize;
8145
8146         /* Create Fast Path FCP CQs */
8147         if (phba->enab_exp_wqcq_pages)
8148                 /* Increase the CQ size when WQEs contain an embedded cdb */
8149                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8150                                               phba->sli4_hba.cq_esize,
8151                                               LPFC_CQE_EXP_COUNT);
8152
8153         else
8154                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8155                                               phba->sli4_hba.cq_esize,
8156                                               phba->sli4_hba.cq_ecount);
8157         if (!qdesc) {
8158                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8159                         "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx);
8160                 return 1;
8161         }
8162         qdesc->qe_valid = 1;
8163         phba->sli4_hba.fcp_cq[wqidx] = qdesc;
8164
8165         /* Create Fast Path FCP WQs */
8166         if (phba->enab_exp_wqcq_pages) {
8167                 /* Increase the WQ size when WQEs contain an embedded cdb */
8168                 wqesize = (phba->fcp_embed_io) ?
8169                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8170                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8171                                               wqesize,
8172                                               LPFC_WQE_EXP_COUNT);
8173         } else
8174                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8175                                               phba->sli4_hba.wq_esize,
8176                                               phba->sli4_hba.wq_ecount);
8177
8178         if (!qdesc) {
8179                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8180                                 "0503 Failed allocate fast-path FCP WQ (%d)\n",
8181                                 wqidx);
8182                 return 1;
8183         }
8184         phba->sli4_hba.fcp_wq[wqidx] = qdesc;
8185         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8186         return 0;
8187 }
8188
8189 /**
8190  * lpfc_sli4_queue_create - Create all the SLI4 queues
8191  * @phba: pointer to lpfc hba data structure.
8192  *
8193  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8194  * operation. For each SLI4 queue type, the parameters such as queue entry
8195  * count (queue depth) shall be taken from the module parameter. For now,
8196  * we just use some constant number as place holder.
8197  *
8198  * Return codes
8199  *      0 - successful
8200  *      -ENOMEM - No availble memory
8201  *      -EIO - The mailbox failed to complete successfully.
8202  **/
8203 int
8204 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8205 {
8206         struct lpfc_queue *qdesc;
8207         int idx, io_channel;
8208
8209         /*
8210          * Create HBA Record arrays.
8211          * Both NVME and FCP will share that same vectors / EQs
8212          */
8213         io_channel = phba->io_channel_irqs;
8214         if (!io_channel)
8215                 return -ERANGE;
8216
8217         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8218         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8219         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8220         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8221         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8222         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8223         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8224         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8225         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8226         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8227
8228         phba->sli4_hba.hba_eq =  kcalloc(io_channel,
8229                                         sizeof(struct lpfc_queue *),
8230                                         GFP_KERNEL);
8231         if (!phba->sli4_hba.hba_eq) {
8232                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8233                         "2576 Failed allocate memory for "
8234                         "fast-path EQ record array\n");
8235                 goto out_error;
8236         }
8237
8238         if (phba->cfg_fcp_io_channel) {
8239                 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel,
8240                                                 sizeof(struct lpfc_queue *),
8241                                                 GFP_KERNEL);
8242                 if (!phba->sli4_hba.fcp_cq) {
8243                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8244                                         "2577 Failed allocate memory for "
8245                                         "fast-path CQ record array\n");
8246                         goto out_error;
8247                 }
8248                 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel,
8249                                                 sizeof(struct lpfc_queue *),
8250                                                 GFP_KERNEL);
8251                 if (!phba->sli4_hba.fcp_wq) {
8252                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8253                                         "2578 Failed allocate memory for "
8254                                         "fast-path FCP WQ record array\n");
8255                         goto out_error;
8256                 }
8257                 /*
8258                  * Since the first EQ can have multiple CQs associated with it,
8259                  * this array is used to quickly see if we have a FCP fast-path
8260                  * CQ match.
8261                  */
8262                 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel,
8263                                                         sizeof(uint16_t),
8264                                                         GFP_KERNEL);
8265                 if (!phba->sli4_hba.fcp_cq_map) {
8266                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8267                                         "2545 Failed allocate memory for "
8268                                         "fast-path CQ map\n");
8269                         goto out_error;
8270                 }
8271         }
8272
8273         if (phba->cfg_nvme_io_channel) {
8274                 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel,
8275                                                 sizeof(struct lpfc_queue *),
8276                                                 GFP_KERNEL);
8277                 if (!phba->sli4_hba.nvme_cq) {
8278                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8279                                         "6077 Failed allocate memory for "
8280                                         "fast-path CQ record array\n");
8281                         goto out_error;
8282                 }
8283
8284                 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel,
8285                                                 sizeof(struct lpfc_queue *),
8286                                                 GFP_KERNEL);
8287                 if (!phba->sli4_hba.nvme_wq) {
8288                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8289                                         "2581 Failed allocate memory for "
8290                                         "fast-path NVME WQ record array\n");
8291                         goto out_error;
8292                 }
8293
8294                 /*
8295                  * Since the first EQ can have multiple CQs associated with it,
8296                  * this array is used to quickly see if we have a NVME fast-path
8297                  * CQ match.
8298                  */
8299                 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel,
8300                                                         sizeof(uint16_t),
8301                                                         GFP_KERNEL);
8302                 if (!phba->sli4_hba.nvme_cq_map) {
8303                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8304                                         "6078 Failed allocate memory for "
8305                                         "fast-path CQ map\n");
8306                         goto out_error;
8307                 }
8308
8309                 if (phba->nvmet_support) {
8310                         phba->sli4_hba.nvmet_cqset = kcalloc(
8311                                         phba->cfg_nvmet_mrq,
8312                                         sizeof(struct lpfc_queue *),
8313                                         GFP_KERNEL);
8314                         if (!phba->sli4_hba.nvmet_cqset) {
8315                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8316                                         "3121 Fail allocate memory for "
8317                                         "fast-path CQ set array\n");
8318                                 goto out_error;
8319                         }
8320                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8321                                         phba->cfg_nvmet_mrq,
8322                                         sizeof(struct lpfc_queue *),
8323                                         GFP_KERNEL);
8324                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
8325                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8326                                         "3122 Fail allocate memory for "
8327                                         "fast-path RQ set hdr array\n");
8328                                 goto out_error;
8329                         }
8330                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
8331                                         phba->cfg_nvmet_mrq,
8332                                         sizeof(struct lpfc_queue *),
8333                                         GFP_KERNEL);
8334                         if (!phba->sli4_hba.nvmet_mrq_data) {
8335                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8336                                         "3124 Fail allocate memory for "
8337                                         "fast-path RQ set data array\n");
8338                                 goto out_error;
8339                         }
8340                 }
8341         }
8342
8343         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8344
8345         /* Create HBA Event Queues (EQs) */
8346         for (idx = 0; idx < io_channel; idx++) {
8347                 /* Create EQs */
8348                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8349                                               phba->sli4_hba.eq_esize,
8350                                               phba->sli4_hba.eq_ecount);
8351                 if (!qdesc) {
8352                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8353                                         "0497 Failed allocate EQ (%d)\n", idx);
8354                         goto out_error;
8355                 }
8356                 qdesc->qe_valid = 1;
8357                 phba->sli4_hba.hba_eq[idx] = qdesc;
8358         }
8359
8360         /* FCP and NVME io channels are not required to be balanced */
8361
8362         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8363                 if (lpfc_alloc_fcp_wq_cq(phba, idx))
8364                         goto out_error;
8365
8366         for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++)
8367                 if (lpfc_alloc_nvme_wq_cq(phba, idx))
8368                         goto out_error;
8369
8370         if (phba->nvmet_support) {
8371                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8372                         qdesc = lpfc_sli4_queue_alloc(phba,
8373                                                       LPFC_DEFAULT_PAGE_SIZE,
8374                                                       phba->sli4_hba.cq_esize,
8375                                                       phba->sli4_hba.cq_ecount);
8376                         if (!qdesc) {
8377                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8378                                         "3142 Failed allocate NVME "
8379                                         "CQ Set (%d)\n", idx);
8380                                 goto out_error;
8381                         }
8382                         qdesc->qe_valid = 1;
8383                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
8384                 }
8385         }
8386
8387         /*
8388          * Create Slow Path Completion Queues (CQs)
8389          */
8390
8391         /* Create slow-path Mailbox Command Complete Queue */
8392         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8393                                       phba->sli4_hba.cq_esize,
8394                                       phba->sli4_hba.cq_ecount);
8395         if (!qdesc) {
8396                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8397                                 "0500 Failed allocate slow-path mailbox CQ\n");
8398                 goto out_error;
8399         }
8400         qdesc->qe_valid = 1;
8401         phba->sli4_hba.mbx_cq = qdesc;
8402
8403         /* Create slow-path ELS Complete Queue */
8404         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8405                                       phba->sli4_hba.cq_esize,
8406                                       phba->sli4_hba.cq_ecount);
8407         if (!qdesc) {
8408                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8409                                 "0501 Failed allocate slow-path ELS CQ\n");
8410                 goto out_error;
8411         }
8412         qdesc->qe_valid = 1;
8413         phba->sli4_hba.els_cq = qdesc;
8414
8415
8416         /*
8417          * Create Slow Path Work Queues (WQs)
8418          */
8419
8420         /* Create Mailbox Command Queue */
8421
8422         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8423                                       phba->sli4_hba.mq_esize,
8424                                       phba->sli4_hba.mq_ecount);
8425         if (!qdesc) {
8426                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8427                                 "0505 Failed allocate slow-path MQ\n");
8428                 goto out_error;
8429         }
8430         phba->sli4_hba.mbx_wq = qdesc;
8431
8432         /*
8433          * Create ELS Work Queues
8434          */
8435
8436         /* Create slow-path ELS Work Queue */
8437         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8438                                       phba->sli4_hba.wq_esize,
8439                                       phba->sli4_hba.wq_ecount);
8440         if (!qdesc) {
8441                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8442                                 "0504 Failed allocate slow-path ELS WQ\n");
8443                 goto out_error;
8444         }
8445         phba->sli4_hba.els_wq = qdesc;
8446         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8447
8448         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8449                 /* Create NVME LS Complete Queue */
8450                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8451                                               phba->sli4_hba.cq_esize,
8452                                               phba->sli4_hba.cq_ecount);
8453                 if (!qdesc) {
8454                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8455                                         "6079 Failed allocate NVME LS CQ\n");
8456                         goto out_error;
8457                 }
8458                 qdesc->qe_valid = 1;
8459                 phba->sli4_hba.nvmels_cq = qdesc;
8460
8461                 /* Create NVME LS Work Queue */
8462                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8463                                               phba->sli4_hba.wq_esize,
8464                                               phba->sli4_hba.wq_ecount);
8465                 if (!qdesc) {
8466                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8467                                         "6080 Failed allocate NVME LS WQ\n");
8468                         goto out_error;
8469                 }
8470                 phba->sli4_hba.nvmels_wq = qdesc;
8471                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8472         }
8473
8474         /*
8475          * Create Receive Queue (RQ)
8476          */
8477
8478         /* Create Receive Queue for header */
8479         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8480                                       phba->sli4_hba.rq_esize,
8481                                       phba->sli4_hba.rq_ecount);
8482         if (!qdesc) {
8483                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8484                                 "0506 Failed allocate receive HRQ\n");
8485                 goto out_error;
8486         }
8487         phba->sli4_hba.hdr_rq = qdesc;
8488
8489         /* Create Receive Queue for data */
8490         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8491                                       phba->sli4_hba.rq_esize,
8492                                       phba->sli4_hba.rq_ecount);
8493         if (!qdesc) {
8494                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8495                                 "0507 Failed allocate receive DRQ\n");
8496                 goto out_error;
8497         }
8498         phba->sli4_hba.dat_rq = qdesc;
8499
8500         if (phba->nvmet_support) {
8501                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8502                         /* Create NVMET Receive Queue for header */
8503                         qdesc = lpfc_sli4_queue_alloc(phba,
8504                                                       LPFC_DEFAULT_PAGE_SIZE,
8505                                                       phba->sli4_hba.rq_esize,
8506                                                       LPFC_NVMET_RQE_DEF_COUNT);
8507                         if (!qdesc) {
8508                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8509                                                 "3146 Failed allocate "
8510                                                 "receive HRQ\n");
8511                                 goto out_error;
8512                         }
8513                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
8514
8515                         /* Only needed for header of RQ pair */
8516                         qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb),
8517                                               GFP_KERNEL);
8518                         if (qdesc->rqbp == NULL) {
8519                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8520                                                 "6131 Failed allocate "
8521                                                 "Header RQBP\n");
8522                                 goto out_error;
8523                         }
8524
8525                         /* Put list in known state in case driver load fails. */
8526                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
8527
8528                         /* Create NVMET Receive Queue for data */
8529                         qdesc = lpfc_sli4_queue_alloc(phba,
8530                                                       LPFC_DEFAULT_PAGE_SIZE,
8531                                                       phba->sli4_hba.rq_esize,
8532                                                       LPFC_NVMET_RQE_DEF_COUNT);
8533                         if (!qdesc) {
8534                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8535                                                 "3156 Failed allocate "
8536                                                 "receive DRQ\n");
8537                                 goto out_error;
8538                         }
8539                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
8540                 }
8541         }
8542
8543         /* Create the Queues needed for Flash Optimized Fabric operations */
8544         if (phba->cfg_fof)
8545                 lpfc_fof_queue_create(phba);
8546         return 0;
8547
8548 out_error:
8549         lpfc_sli4_queue_destroy(phba);
8550         return -ENOMEM;
8551 }
8552
8553 static inline void
8554 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
8555 {
8556         if (*qp != NULL) {
8557                 lpfc_sli4_queue_free(*qp);
8558                 *qp = NULL;
8559         }
8560 }
8561
8562 static inline void
8563 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
8564 {
8565         int idx;
8566
8567         if (*qs == NULL)
8568                 return;
8569
8570         for (idx = 0; idx < max; idx++)
8571                 __lpfc_sli4_release_queue(&(*qs)[idx]);
8572
8573         kfree(*qs);
8574         *qs = NULL;
8575 }
8576
8577 static inline void
8578 lpfc_sli4_release_queue_map(uint16_t **qmap)
8579 {
8580         if (*qmap != NULL) {
8581                 kfree(*qmap);
8582                 *qmap = NULL;
8583         }
8584 }
8585
8586 /**
8587  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
8588  * @phba: pointer to lpfc hba data structure.
8589  *
8590  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
8591  * operation.
8592  *
8593  * Return codes
8594  *      0 - successful
8595  *      -ENOMEM - No available memory
8596  *      -EIO - The mailbox failed to complete successfully.
8597  **/
8598 void
8599 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
8600 {
8601         if (phba->cfg_fof)
8602                 lpfc_fof_queue_destroy(phba);
8603
8604         /* Release HBA eqs */
8605         lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs);
8606
8607         /* Release FCP cqs */
8608         lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq,
8609                                  phba->cfg_fcp_io_channel);
8610
8611         /* Release FCP wqs */
8612         lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq,
8613                                  phba->cfg_fcp_io_channel);
8614
8615         /* Release FCP CQ mapping array */
8616         lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map);
8617
8618         /* Release NVME cqs */
8619         lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq,
8620                                         phba->cfg_nvme_io_channel);
8621
8622         /* Release NVME wqs */
8623         lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq,
8624                                         phba->cfg_nvme_io_channel);
8625
8626         /* Release NVME CQ mapping array */
8627         lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map);
8628
8629         if (phba->nvmet_support) {
8630                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
8631                                          phba->cfg_nvmet_mrq);
8632
8633                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
8634                                          phba->cfg_nvmet_mrq);
8635                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
8636                                          phba->cfg_nvmet_mrq);
8637         }
8638
8639         /* Release mailbox command work queue */
8640         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
8641
8642         /* Release ELS work queue */
8643         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
8644
8645         /* Release ELS work queue */
8646         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
8647
8648         /* Release unsolicited receive queue */
8649         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
8650         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
8651
8652         /* Release ELS complete queue */
8653         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
8654
8655         /* Release NVME LS complete queue */
8656         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
8657
8658         /* Release mailbox command complete queue */
8659         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
8660
8661         /* Everything on this list has been freed */
8662         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8663 }
8664
8665 int
8666 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
8667 {
8668         struct lpfc_rqb *rqbp;
8669         struct lpfc_dmabuf *h_buf;
8670         struct rqb_dmabuf *rqb_buffer;
8671
8672         rqbp = rq->rqbp;
8673         while (!list_empty(&rqbp->rqb_buffer_list)) {
8674                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
8675                                  struct lpfc_dmabuf, list);
8676
8677                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
8678                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
8679                 rqbp->buffer_count--;
8680         }
8681         return 1;
8682 }
8683
8684 static int
8685 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
8686         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
8687         int qidx, uint32_t qtype)
8688 {
8689         struct lpfc_sli_ring *pring;
8690         int rc;
8691
8692         if (!eq || !cq || !wq) {
8693                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8694                         "6085 Fast-path %s (%d) not allocated\n",
8695                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
8696                 return -ENOMEM;
8697         }
8698
8699         /* create the Cq first */
8700         rc = lpfc_cq_create(phba, cq, eq,
8701                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
8702         if (rc) {
8703                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8704                         "6086 Failed setup of CQ (%d), rc = 0x%x\n",
8705                         qidx, (uint32_t)rc);
8706                 return rc;
8707         }
8708         cq->chann = qidx;
8709
8710         if (qtype != LPFC_MBOX) {
8711                 /* Setup nvme_cq_map for fast lookup */
8712                 if (cq_map)
8713                         *cq_map = cq->queue_id;
8714
8715                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8716                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
8717                         qidx, cq->queue_id, qidx, eq->queue_id);
8718
8719                 /* create the wq */
8720                 rc = lpfc_wq_create(phba, wq, cq, qtype);
8721                 if (rc) {
8722                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8723                                 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n",
8724                                 qidx, (uint32_t)rc);
8725                         /* no need to tear down cq - caller will do so */
8726                         return rc;
8727                 }
8728                 wq->chann = qidx;
8729
8730                 /* Bind this CQ/WQ to the NVME ring */
8731                 pring = wq->pring;
8732                 pring->sli.sli4.wqp = (void *)wq;
8733                 cq->pring = pring;
8734
8735                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8736                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
8737                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
8738         } else {
8739                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
8740                 if (rc) {
8741                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8742                                 "0539 Failed setup of slow-path MQ: "
8743                                 "rc = 0x%x\n", rc);
8744                         /* no need to tear down cq - caller will do so */
8745                         return rc;
8746                 }
8747
8748                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8749                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
8750                         phba->sli4_hba.mbx_wq->queue_id,
8751                         phba->sli4_hba.mbx_cq->queue_id);
8752         }
8753
8754         return 0;
8755 }
8756
8757 /**
8758  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
8759  * @phba: pointer to lpfc hba data structure.
8760  *
8761  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
8762  * operation.
8763  *
8764  * Return codes
8765  *      0 - successful
8766  *      -ENOMEM - No available memory
8767  *      -EIO - The mailbox failed to complete successfully.
8768  **/
8769 int
8770 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
8771 {
8772         uint32_t shdr_status, shdr_add_status;
8773         union lpfc_sli4_cfg_shdr *shdr;
8774         LPFC_MBOXQ_t *mboxq;
8775         int qidx;
8776         uint32_t length, io_channel;
8777         int rc = -ENOMEM;
8778
8779         /* Check for dual-ULP support */
8780         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8781         if (!mboxq) {
8782                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8783                                 "3249 Unable to allocate memory for "
8784                                 "QUERY_FW_CFG mailbox command\n");
8785                 return -ENOMEM;
8786         }
8787         length = (sizeof(struct lpfc_mbx_query_fw_config) -
8788                   sizeof(struct lpfc_sli4_cfg_mhdr));
8789         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8790                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
8791                          length, LPFC_SLI4_MBX_EMBED);
8792
8793         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8794
8795         shdr = (union lpfc_sli4_cfg_shdr *)
8796                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8797         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8798         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8799         if (shdr_status || shdr_add_status || rc) {
8800                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8801                                 "3250 QUERY_FW_CFG mailbox failed with status "
8802                                 "x%x add_status x%x, mbx status x%x\n",
8803                                 shdr_status, shdr_add_status, rc);
8804                 if (rc != MBX_TIMEOUT)
8805                         mempool_free(mboxq, phba->mbox_mem_pool);
8806                 rc = -ENXIO;
8807                 goto out_error;
8808         }
8809
8810         phba->sli4_hba.fw_func_mode =
8811                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
8812         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
8813         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
8814         phba->sli4_hba.physical_port =
8815                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
8816         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8817                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
8818                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
8819                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
8820
8821         if (rc != MBX_TIMEOUT)
8822                 mempool_free(mboxq, phba->mbox_mem_pool);
8823
8824         /*
8825          * Set up HBA Event Queues (EQs)
8826          */
8827         io_channel = phba->io_channel_irqs;
8828
8829         /* Set up HBA event queue */
8830         if (io_channel && !phba->sli4_hba.hba_eq) {
8831                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8832                                 "3147 Fast-path EQs not allocated\n");
8833                 rc = -ENOMEM;
8834                 goto out_error;
8835         }
8836         for (qidx = 0; qidx < io_channel; qidx++) {
8837                 if (!phba->sli4_hba.hba_eq[qidx]) {
8838                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8839                                         "0522 Fast-path EQ (%d) not "
8840                                         "allocated\n", qidx);
8841                         rc = -ENOMEM;
8842                         goto out_destroy;
8843                 }
8844                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx],
8845                                                 phba->cfg_fcp_imax);
8846                 if (rc) {
8847                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8848                                         "0523 Failed setup of fast-path EQ "
8849                                         "(%d), rc = 0x%x\n", qidx,
8850                                         (uint32_t)rc);
8851                         goto out_destroy;
8852                 }
8853                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8854                                 "2584 HBA EQ setup: queue[%d]-id=%d\n",
8855                                 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id);
8856         }
8857
8858         if (phba->cfg_nvme_io_channel) {
8859                 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) {
8860                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8861                                 "6084 Fast-path NVME %s array not allocated\n",
8862                                 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ");
8863                         rc = -ENOMEM;
8864                         goto out_destroy;
8865                 }
8866
8867                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) {
8868                         rc = lpfc_create_wq_cq(phba,
8869                                         phba->sli4_hba.hba_eq[
8870                                                 qidx % io_channel],
8871                                         phba->sli4_hba.nvme_cq[qidx],
8872                                         phba->sli4_hba.nvme_wq[qidx],
8873                                         &phba->sli4_hba.nvme_cq_map[qidx],
8874                                         qidx, LPFC_NVME);
8875                         if (rc) {
8876                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8877                                         "6123 Failed to setup fastpath "
8878                                         "NVME WQ/CQ (%d), rc = 0x%x\n",
8879                                         qidx, (uint32_t)rc);
8880                                 goto out_destroy;
8881                         }
8882                 }
8883         }
8884
8885         if (phba->cfg_fcp_io_channel) {
8886                 /* Set up fast-path FCP Response Complete Queue */
8887                 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) {
8888                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8889                                 "3148 Fast-path FCP %s array not allocated\n",
8890                                 phba->sli4_hba.fcp_cq ? "WQ" : "CQ");
8891                         rc = -ENOMEM;
8892                         goto out_destroy;
8893                 }
8894
8895                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) {
8896                         rc = lpfc_create_wq_cq(phba,
8897                                         phba->sli4_hba.hba_eq[
8898                                                 qidx % io_channel],
8899                                         phba->sli4_hba.fcp_cq[qidx],
8900                                         phba->sli4_hba.fcp_wq[qidx],
8901                                         &phba->sli4_hba.fcp_cq_map[qidx],
8902                                         qidx, LPFC_FCP);
8903                         if (rc) {
8904                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8905                                         "0535 Failed to setup fastpath "
8906                                         "FCP WQ/CQ (%d), rc = 0x%x\n",
8907                                         qidx, (uint32_t)rc);
8908                                 goto out_destroy;
8909                         }
8910                 }
8911         }
8912
8913         /*
8914          * Set up Slow Path Complete Queues (CQs)
8915          */
8916
8917         /* Set up slow-path MBOX CQ/MQ */
8918
8919         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
8920                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8921                                 "0528 %s not allocated\n",
8922                                 phba->sli4_hba.mbx_cq ?
8923                                 "Mailbox WQ" : "Mailbox CQ");
8924                 rc = -ENOMEM;
8925                 goto out_destroy;
8926         }
8927
8928         rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8929                                phba->sli4_hba.mbx_cq,
8930                                phba->sli4_hba.mbx_wq,
8931                                NULL, 0, LPFC_MBOX);
8932         if (rc) {
8933                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8934                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
8935                         (uint32_t)rc);
8936                 goto out_destroy;
8937         }
8938         if (phba->nvmet_support) {
8939                 if (!phba->sli4_hba.nvmet_cqset) {
8940                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8941                                         "3165 Fast-path NVME CQ Set "
8942                                         "array not allocated\n");
8943                         rc = -ENOMEM;
8944                         goto out_destroy;
8945                 }
8946                 if (phba->cfg_nvmet_mrq > 1) {
8947                         rc = lpfc_cq_create_set(phba,
8948                                         phba->sli4_hba.nvmet_cqset,
8949                                         phba->sli4_hba.hba_eq,
8950                                         LPFC_WCQ, LPFC_NVMET);
8951                         if (rc) {
8952                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8953                                                 "3164 Failed setup of NVME CQ "
8954                                                 "Set, rc = 0x%x\n",
8955                                                 (uint32_t)rc);
8956                                 goto out_destroy;
8957                         }
8958                 } else {
8959                         /* Set up NVMET Receive Complete Queue */
8960                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
8961                                             phba->sli4_hba.hba_eq[0],
8962                                             LPFC_WCQ, LPFC_NVMET);
8963                         if (rc) {
8964                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8965                                                 "6089 Failed setup NVMET CQ: "
8966                                                 "rc = 0x%x\n", (uint32_t)rc);
8967                                 goto out_destroy;
8968                         }
8969                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
8970
8971                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8972                                         "6090 NVMET CQ setup: cq-id=%d, "
8973                                         "parent eq-id=%d\n",
8974                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
8975                                         phba->sli4_hba.hba_eq[0]->queue_id);
8976                 }
8977         }
8978
8979         /* Set up slow-path ELS WQ/CQ */
8980         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
8981                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8982                                 "0530 ELS %s not allocated\n",
8983                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
8984                 rc = -ENOMEM;
8985                 goto out_destroy;
8986         }
8987         rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8988                                         phba->sli4_hba.els_cq,
8989                                         phba->sli4_hba.els_wq,
8990                                         NULL, 0, LPFC_ELS);
8991         if (rc) {
8992                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8993                         "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
8994                         (uint32_t)rc);
8995                 goto out_destroy;
8996         }
8997         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8998                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
8999                         phba->sli4_hba.els_wq->queue_id,
9000                         phba->sli4_hba.els_cq->queue_id);
9001
9002         if (phba->cfg_nvme_io_channel) {
9003                 /* Set up NVME LS Complete Queue */
9004                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
9005                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9006                                         "6091 LS %s not allocated\n",
9007                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
9008                         rc = -ENOMEM;
9009                         goto out_destroy;
9010                 }
9011                 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
9012                                         phba->sli4_hba.nvmels_cq,
9013                                         phba->sli4_hba.nvmels_wq,
9014                                         NULL, 0, LPFC_NVME_LS);
9015                 if (rc) {
9016                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9017                                 "0529 Failed setup of NVVME LS WQ/CQ: "
9018                                 "rc = 0x%x\n", (uint32_t)rc);
9019                         goto out_destroy;
9020                 }
9021
9022                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9023                                 "6096 ELS WQ setup: wq-id=%d, "
9024                                 "parent cq-id=%d\n",
9025                                 phba->sli4_hba.nvmels_wq->queue_id,
9026                                 phba->sli4_hba.nvmels_cq->queue_id);
9027         }
9028
9029         /*
9030          * Create NVMET Receive Queue (RQ)
9031          */
9032         if (phba->nvmet_support) {
9033                 if ((!phba->sli4_hba.nvmet_cqset) ||
9034                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
9035                     (!phba->sli4_hba.nvmet_mrq_data)) {
9036                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9037                                         "6130 MRQ CQ Queues not "
9038                                         "allocated\n");
9039                         rc = -ENOMEM;
9040                         goto out_destroy;
9041                 }
9042                 if (phba->cfg_nvmet_mrq > 1) {
9043                         rc = lpfc_mrq_create(phba,
9044                                              phba->sli4_hba.nvmet_mrq_hdr,
9045                                              phba->sli4_hba.nvmet_mrq_data,
9046                                              phba->sli4_hba.nvmet_cqset,
9047                                              LPFC_NVMET);
9048                         if (rc) {
9049                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9050                                                 "6098 Failed setup of NVMET "
9051                                                 "MRQ: rc = 0x%x\n",
9052                                                 (uint32_t)rc);
9053                                 goto out_destroy;
9054                         }
9055
9056                 } else {
9057                         rc = lpfc_rq_create(phba,
9058                                             phba->sli4_hba.nvmet_mrq_hdr[0],
9059                                             phba->sli4_hba.nvmet_mrq_data[0],
9060                                             phba->sli4_hba.nvmet_cqset[0],
9061                                             LPFC_NVMET);
9062                         if (rc) {
9063                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9064                                                 "6057 Failed setup of NVMET "
9065                                                 "Receive Queue: rc = 0x%x\n",
9066                                                 (uint32_t)rc);
9067                                 goto out_destroy;
9068                         }
9069
9070                         lpfc_printf_log(
9071                                 phba, KERN_INFO, LOG_INIT,
9072                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
9073                                 "dat-rq-id=%d parent cq-id=%d\n",
9074                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
9075                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
9076                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
9077
9078                 }
9079         }
9080
9081         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
9082                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9083                                 "0540 Receive Queue not allocated\n");
9084                 rc = -ENOMEM;
9085                 goto out_destroy;
9086         }
9087
9088         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
9089                             phba->sli4_hba.els_cq, LPFC_USOL);
9090         if (rc) {
9091                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9092                                 "0541 Failed setup of Receive Queue: "
9093                                 "rc = 0x%x\n", (uint32_t)rc);
9094                 goto out_destroy;
9095         }
9096
9097         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9098                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
9099                         "parent cq-id=%d\n",
9100                         phba->sli4_hba.hdr_rq->queue_id,
9101                         phba->sli4_hba.dat_rq->queue_id,
9102                         phba->sli4_hba.els_cq->queue_id);
9103
9104         if (phba->cfg_fof) {
9105                 rc = lpfc_fof_queue_setup(phba);
9106                 if (rc) {
9107                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9108                                         "0549 Failed setup of FOF Queues: "
9109                                         "rc = 0x%x\n", rc);
9110                         goto out_destroy;
9111                 }
9112         }
9113
9114         for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
9115                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
9116                                          phba->cfg_fcp_imax);
9117
9118         return 0;
9119
9120 out_destroy:
9121         lpfc_sli4_queue_unset(phba);
9122 out_error:
9123         return rc;
9124 }
9125
9126 /**
9127  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
9128  * @phba: pointer to lpfc hba data structure.
9129  *
9130  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
9131  * operation.
9132  *
9133  * Return codes
9134  *      0 - successful
9135  *      -ENOMEM - No available memory
9136  *      -EIO - The mailbox failed to complete successfully.
9137  **/
9138 void
9139 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
9140 {
9141         int qidx;
9142
9143         /* Unset the queues created for Flash Optimized Fabric operations */
9144         if (phba->cfg_fof)
9145                 lpfc_fof_queue_destroy(phba);
9146
9147         /* Unset mailbox command work queue */
9148         if (phba->sli4_hba.mbx_wq)
9149                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
9150
9151         /* Unset NVME LS work queue */
9152         if (phba->sli4_hba.nvmels_wq)
9153                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
9154
9155         /* Unset ELS work queue */
9156         if (phba->sli4_hba.els_wq)
9157                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
9158
9159         /* Unset unsolicited receive queue */
9160         if (phba->sli4_hba.hdr_rq)
9161                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
9162                                 phba->sli4_hba.dat_rq);
9163
9164         /* Unset FCP work queue */
9165         if (phba->sli4_hba.fcp_wq)
9166                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
9167                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]);
9168
9169         /* Unset NVME work queue */
9170         if (phba->sli4_hba.nvme_wq) {
9171                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
9172                         lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]);
9173         }
9174
9175         /* Unset mailbox command complete queue */
9176         if (phba->sli4_hba.mbx_cq)
9177                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
9178
9179         /* Unset ELS complete queue */
9180         if (phba->sli4_hba.els_cq)
9181                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
9182
9183         /* Unset NVME LS complete queue */
9184         if (phba->sli4_hba.nvmels_cq)
9185                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
9186
9187         /* Unset NVME response complete queue */
9188         if (phba->sli4_hba.nvme_cq)
9189                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
9190                         lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]);
9191
9192         if (phba->nvmet_support) {
9193                 /* Unset NVMET MRQ queue */
9194                 if (phba->sli4_hba.nvmet_mrq_hdr) {
9195                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9196                                 lpfc_rq_destroy(
9197                                         phba,
9198                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
9199                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
9200                 }
9201
9202                 /* Unset NVMET CQ Set complete queue */
9203                 if (phba->sli4_hba.nvmet_cqset) {
9204                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9205                                 lpfc_cq_destroy(
9206                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
9207                 }
9208         }
9209
9210         /* Unset FCP response complete queue */
9211         if (phba->sli4_hba.fcp_cq)
9212                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
9213                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]);
9214
9215         /* Unset fast-path event queue */
9216         if (phba->sli4_hba.hba_eq)
9217                 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++)
9218                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]);
9219 }
9220
9221 /**
9222  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
9223  * @phba: pointer to lpfc hba data structure.
9224  *
9225  * This routine is invoked to allocate and set up a pool of completion queue
9226  * events. The body of the completion queue event is a completion queue entry
9227  * CQE. For now, this pool is used for the interrupt service routine to queue
9228  * the following HBA completion queue events for the worker thread to process:
9229  *   - Mailbox asynchronous events
9230  *   - Receive queue completion unsolicited events
9231  * Later, this can be used for all the slow-path events.
9232  *
9233  * Return codes
9234  *      0 - successful
9235  *      -ENOMEM - No available memory
9236  **/
9237 static int
9238 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
9239 {
9240         struct lpfc_cq_event *cq_event;
9241         int i;
9242
9243         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
9244                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
9245                 if (!cq_event)
9246                         goto out_pool_create_fail;
9247                 list_add_tail(&cq_event->list,
9248                               &phba->sli4_hba.sp_cqe_event_pool);
9249         }
9250         return 0;
9251
9252 out_pool_create_fail:
9253         lpfc_sli4_cq_event_pool_destroy(phba);
9254         return -ENOMEM;
9255 }
9256
9257 /**
9258  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
9259  * @phba: pointer to lpfc hba data structure.
9260  *
9261  * This routine is invoked to free the pool of completion queue events at
9262  * driver unload time. Note that, it is the responsibility of the driver
9263  * cleanup routine to free all the outstanding completion-queue events
9264  * allocated from this pool back into the pool before invoking this routine
9265  * to destroy the pool.
9266  **/
9267 static void
9268 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
9269 {
9270         struct lpfc_cq_event *cq_event, *next_cq_event;
9271
9272         list_for_each_entry_safe(cq_event, next_cq_event,
9273                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
9274                 list_del(&cq_event->list);
9275                 kfree(cq_event);
9276         }
9277 }
9278
9279 /**
9280  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9281  * @phba: pointer to lpfc hba data structure.
9282  *
9283  * This routine is the lock free version of the API invoked to allocate a
9284  * completion-queue event from the free pool.
9285  *
9286  * Return: Pointer to the newly allocated completion-queue event if successful
9287  *         NULL otherwise.
9288  **/
9289 struct lpfc_cq_event *
9290 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9291 {
9292         struct lpfc_cq_event *cq_event = NULL;
9293
9294         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
9295                          struct lpfc_cq_event, list);
9296         return cq_event;
9297 }
9298
9299 /**
9300  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9301  * @phba: pointer to lpfc hba data structure.
9302  *
9303  * This routine is the lock version of the API invoked to allocate a
9304  * completion-queue event from the free pool.
9305  *
9306  * Return: Pointer to the newly allocated completion-queue event if successful
9307  *         NULL otherwise.
9308  **/
9309 struct lpfc_cq_event *
9310 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9311 {
9312         struct lpfc_cq_event *cq_event;
9313         unsigned long iflags;
9314
9315         spin_lock_irqsave(&phba->hbalock, iflags);
9316         cq_event = __lpfc_sli4_cq_event_alloc(phba);
9317         spin_unlock_irqrestore(&phba->hbalock, iflags);
9318         return cq_event;
9319 }
9320
9321 /**
9322  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9323  * @phba: pointer to lpfc hba data structure.
9324  * @cq_event: pointer to the completion queue event to be freed.
9325  *
9326  * This routine is the lock free version of the API invoked to release a
9327  * completion-queue event back into the free pool.
9328  **/
9329 void
9330 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9331                              struct lpfc_cq_event *cq_event)
9332 {
9333         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
9334 }
9335
9336 /**
9337  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9338  * @phba: pointer to lpfc hba data structure.
9339  * @cq_event: pointer to the completion queue event to be freed.
9340  *
9341  * This routine is the lock version of the API invoked to release a
9342  * completion-queue event back into the free pool.
9343  **/
9344 void
9345 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9346                            struct lpfc_cq_event *cq_event)
9347 {
9348         unsigned long iflags;
9349         spin_lock_irqsave(&phba->hbalock, iflags);
9350         __lpfc_sli4_cq_event_release(phba, cq_event);
9351         spin_unlock_irqrestore(&phba->hbalock, iflags);
9352 }
9353
9354 /**
9355  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
9356  * @phba: pointer to lpfc hba data structure.
9357  *
9358  * This routine is to free all the pending completion-queue events to the
9359  * back into the free pool for device reset.
9360  **/
9361 static void
9362 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
9363 {
9364         LIST_HEAD(cqelist);
9365         struct lpfc_cq_event *cqe;
9366         unsigned long iflags;
9367
9368         /* Retrieve all the pending WCQEs from pending WCQE lists */
9369         spin_lock_irqsave(&phba->hbalock, iflags);
9370         /* Pending FCP XRI abort events */
9371         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
9372                          &cqelist);
9373         /* Pending ELS XRI abort events */
9374         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
9375                          &cqelist);
9376         /* Pending asynnc events */
9377         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
9378                          &cqelist);
9379         spin_unlock_irqrestore(&phba->hbalock, iflags);
9380
9381         while (!list_empty(&cqelist)) {
9382                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
9383                 lpfc_sli4_cq_event_release(phba, cqe);
9384         }
9385 }
9386
9387 /**
9388  * lpfc_pci_function_reset - Reset pci function.
9389  * @phba: pointer to lpfc hba data structure.
9390  *
9391  * This routine is invoked to request a PCI function reset. It will destroys
9392  * all resources assigned to the PCI function which originates this request.
9393  *
9394  * Return codes
9395  *      0 - successful
9396  *      -ENOMEM - No available memory
9397  *      -EIO - The mailbox failed to complete successfully.
9398  **/
9399 int
9400 lpfc_pci_function_reset(struct lpfc_hba *phba)
9401 {
9402         LPFC_MBOXQ_t *mboxq;
9403         uint32_t rc = 0, if_type;
9404         uint32_t shdr_status, shdr_add_status;
9405         uint32_t rdy_chk;
9406         uint32_t port_reset = 0;
9407         union lpfc_sli4_cfg_shdr *shdr;
9408         struct lpfc_register reg_data;
9409         uint16_t devid;
9410
9411         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9412         switch (if_type) {
9413         case LPFC_SLI_INTF_IF_TYPE_0:
9414                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
9415                                                        GFP_KERNEL);
9416                 if (!mboxq) {
9417                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9418                                         "0494 Unable to allocate memory for "
9419                                         "issuing SLI_FUNCTION_RESET mailbox "
9420                                         "command\n");
9421                         return -ENOMEM;
9422                 }
9423
9424                 /* Setup PCI function reset mailbox-ioctl command */
9425                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9426                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
9427                                  LPFC_SLI4_MBX_EMBED);
9428                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9429                 shdr = (union lpfc_sli4_cfg_shdr *)
9430                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9431                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9432                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
9433                                          &shdr->response);
9434                 if (rc != MBX_TIMEOUT)
9435                         mempool_free(mboxq, phba->mbox_mem_pool);
9436                 if (shdr_status || shdr_add_status || rc) {
9437                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9438                                         "0495 SLI_FUNCTION_RESET mailbox "
9439                                         "failed with status x%x add_status x%x,"
9440                                         " mbx status x%x\n",
9441                                         shdr_status, shdr_add_status, rc);
9442                         rc = -ENXIO;
9443                 }
9444                 break;
9445         case LPFC_SLI_INTF_IF_TYPE_2:
9446         case LPFC_SLI_INTF_IF_TYPE_6:
9447 wait:
9448                 /*
9449                  * Poll the Port Status Register and wait for RDY for
9450                  * up to 30 seconds. If the port doesn't respond, treat
9451                  * it as an error.
9452                  */
9453                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
9454                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
9455                                 STATUSregaddr, &reg_data.word0)) {
9456                                 rc = -ENODEV;
9457                                 goto out;
9458                         }
9459                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
9460                                 break;
9461                         msleep(20);
9462                 }
9463
9464                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
9465                         phba->work_status[0] = readl(
9466                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
9467                         phba->work_status[1] = readl(
9468                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
9469                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9470                                         "2890 Port not ready, port status reg "
9471                                         "0x%x error 1=0x%x, error 2=0x%x\n",
9472                                         reg_data.word0,
9473                                         phba->work_status[0],
9474                                         phba->work_status[1]);
9475                         rc = -ENODEV;
9476                         goto out;
9477                 }
9478
9479                 if (!port_reset) {
9480                         /*
9481                          * Reset the port now
9482                          */
9483                         reg_data.word0 = 0;
9484                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
9485                                LPFC_SLIPORT_LITTLE_ENDIAN);
9486                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
9487                                LPFC_SLIPORT_INIT_PORT);
9488                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
9489                                CTRLregaddr);
9490                         /* flush */
9491                         pci_read_config_word(phba->pcidev,
9492                                              PCI_DEVICE_ID, &devid);
9493
9494                         port_reset = 1;
9495                         msleep(20);
9496                         goto wait;
9497                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
9498                         rc = -ENODEV;
9499                         goto out;
9500                 }
9501                 break;
9502
9503         case LPFC_SLI_INTF_IF_TYPE_1:
9504         default:
9505                 break;
9506         }
9507
9508 out:
9509         /* Catch the not-ready port failure after a port reset. */
9510         if (rc) {
9511                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9512                                 "3317 HBA not functional: IP Reset Failed "
9513                                 "try: echo fw_reset > board_mode\n");
9514                 rc = -ENODEV;
9515         }
9516
9517         return rc;
9518 }
9519
9520 /**
9521  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
9522  * @phba: pointer to lpfc hba data structure.
9523  *
9524  * This routine is invoked to set up the PCI device memory space for device
9525  * with SLI-4 interface spec.
9526  *
9527  * Return codes
9528  *      0 - successful
9529  *      other values - error
9530  **/
9531 static int
9532 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
9533 {
9534         struct pci_dev *pdev;
9535         unsigned long bar0map_len, bar1map_len, bar2map_len;
9536         int error = -ENODEV;
9537         uint32_t if_type;
9538
9539         /* Obtain PCI device reference */
9540         if (!phba->pcidev)
9541                 return error;
9542         else
9543                 pdev = phba->pcidev;
9544
9545         /* Set the device DMA mask size */
9546         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
9547          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
9548                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
9549                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
9550                         return error;
9551                 }
9552         }
9553
9554         /*
9555          * The BARs and register set definitions and offset locations are
9556          * dependent on the if_type.
9557          */
9558         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
9559                                   &phba->sli4_hba.sli_intf.word0)) {
9560                 return error;
9561         }
9562
9563         /* There is no SLI3 failback for SLI4 devices. */
9564         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
9565             LPFC_SLI_INTF_VALID) {
9566                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9567                                 "2894 SLI_INTF reg contents invalid "
9568                                 "sli_intf reg 0x%x\n",
9569                                 phba->sli4_hba.sli_intf.word0);
9570                 return error;
9571         }
9572
9573         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9574         /*
9575          * Get the bus address of SLI4 device Bar regions and the
9576          * number of bytes required by each mapping. The mapping of the
9577          * particular PCI BARs regions is dependent on the type of
9578          * SLI4 device.
9579          */
9580         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
9581                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
9582                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
9583
9584                 /*
9585                  * Map SLI4 PCI Config Space Register base to a kernel virtual
9586                  * addr
9587                  */
9588                 phba->sli4_hba.conf_regs_memmap_p =
9589                         ioremap(phba->pci_bar0_map, bar0map_len);
9590                 if (!phba->sli4_hba.conf_regs_memmap_p) {
9591                         dev_printk(KERN_ERR, &pdev->dev,
9592                                    "ioremap failed for SLI4 PCI config "
9593                                    "registers.\n");
9594                         goto out;
9595                 }
9596                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
9597                 /* Set up BAR0 PCI config space register memory map */
9598                 lpfc_sli4_bar0_register_memmap(phba, if_type);
9599         } else {
9600                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
9601                 bar0map_len = pci_resource_len(pdev, 1);
9602                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9603                         dev_printk(KERN_ERR, &pdev->dev,
9604                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
9605                         goto out;
9606                 }
9607                 phba->sli4_hba.conf_regs_memmap_p =
9608                                 ioremap(phba->pci_bar0_map, bar0map_len);
9609                 if (!phba->sli4_hba.conf_regs_memmap_p) {
9610                         dev_printk(KERN_ERR, &pdev->dev,
9611                                 "ioremap failed for SLI4 PCI config "
9612                                 "registers.\n");
9613                                 goto out;
9614                 }
9615                 lpfc_sli4_bar0_register_memmap(phba, if_type);
9616         }
9617
9618         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
9619                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
9620                         /*
9621                          * Map SLI4 if type 0 HBA Control Register base to a
9622                          * kernel virtual address and setup the registers.
9623                          */
9624                         phba->pci_bar1_map = pci_resource_start(pdev,
9625                                                                 PCI_64BIT_BAR2);
9626                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
9627                         phba->sli4_hba.ctrl_regs_memmap_p =
9628                                         ioremap(phba->pci_bar1_map,
9629                                                 bar1map_len);
9630                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
9631                                 dev_err(&pdev->dev,
9632                                            "ioremap failed for SLI4 HBA "
9633                                             "control registers.\n");
9634                                 error = -ENOMEM;
9635                                 goto out_iounmap_conf;
9636                         }
9637                         phba->pci_bar2_memmap_p =
9638                                          phba->sli4_hba.ctrl_regs_memmap_p;
9639                         lpfc_sli4_bar1_register_memmap(phba, if_type);
9640                 } else {
9641                         error = -ENOMEM;
9642                         goto out_iounmap_conf;
9643                 }
9644         }
9645
9646         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
9647             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
9648                 /*
9649                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
9650                  * virtual address and setup the registers.
9651                  */
9652                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
9653                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
9654                 phba->sli4_hba.drbl_regs_memmap_p =
9655                                 ioremap(phba->pci_bar1_map, bar1map_len);
9656                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
9657                         dev_err(&pdev->dev,
9658                            "ioremap failed for SLI4 HBA doorbell registers.\n");
9659                         goto out_iounmap_conf;
9660                 }
9661                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
9662                 lpfc_sli4_bar1_register_memmap(phba, if_type);
9663         }
9664
9665         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
9666                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
9667                         /*
9668                          * Map SLI4 if type 0 HBA Doorbell Register base to
9669                          * a kernel virtual address and setup the registers.
9670                          */
9671                         phba->pci_bar2_map = pci_resource_start(pdev,
9672                                                                 PCI_64BIT_BAR4);
9673                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
9674                         phba->sli4_hba.drbl_regs_memmap_p =
9675                                         ioremap(phba->pci_bar2_map,
9676                                                 bar2map_len);
9677                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
9678                                 dev_err(&pdev->dev,
9679                                            "ioremap failed for SLI4 HBA"
9680                                            " doorbell registers.\n");
9681                                 error = -ENOMEM;
9682                                 goto out_iounmap_ctrl;
9683                         }
9684                         phba->pci_bar4_memmap_p =
9685                                         phba->sli4_hba.drbl_regs_memmap_p;
9686                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
9687                         if (error)
9688                                 goto out_iounmap_all;
9689                 } else {
9690                         error = -ENOMEM;
9691                         goto out_iounmap_all;
9692                 }
9693         }
9694
9695         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
9696             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
9697                 /*
9698                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
9699                  * virtual address and setup the registers.
9700                  */
9701                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
9702                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
9703                 phba->sli4_hba.dpp_regs_memmap_p =
9704                                 ioremap(phba->pci_bar2_map, bar2map_len);
9705                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
9706                         dev_err(&pdev->dev,
9707                            "ioremap failed for SLI4 HBA dpp registers.\n");
9708                         goto out_iounmap_ctrl;
9709                 }
9710                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
9711         }
9712
9713         /* Set up the EQ/CQ register handeling functions now */
9714         switch (if_type) {
9715         case LPFC_SLI_INTF_IF_TYPE_0:
9716         case LPFC_SLI_INTF_IF_TYPE_2:
9717                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
9718                 phba->sli4_hba.sli4_eq_release = lpfc_sli4_eq_release;
9719                 phba->sli4_hba.sli4_cq_release = lpfc_sli4_cq_release;
9720                 break;
9721         case LPFC_SLI_INTF_IF_TYPE_6:
9722                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
9723                 phba->sli4_hba.sli4_eq_release = lpfc_sli4_if6_eq_release;
9724                 phba->sli4_hba.sli4_cq_release = lpfc_sli4_if6_cq_release;
9725                 break;
9726         default:
9727                 break;
9728         }
9729
9730         return 0;
9731
9732 out_iounmap_all:
9733         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9734 out_iounmap_ctrl:
9735         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9736 out_iounmap_conf:
9737         iounmap(phba->sli4_hba.conf_regs_memmap_p);
9738 out:
9739         return error;
9740 }
9741
9742 /**
9743  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
9744  * @phba: pointer to lpfc hba data structure.
9745  *
9746  * This routine is invoked to unset the PCI device memory space for device
9747  * with SLI-4 interface spec.
9748  **/
9749 static void
9750 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
9751 {
9752         uint32_t if_type;
9753         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9754
9755         switch (if_type) {
9756         case LPFC_SLI_INTF_IF_TYPE_0:
9757                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9758                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9759                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9760                 break;
9761         case LPFC_SLI_INTF_IF_TYPE_2:
9762                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9763                 break;
9764         case LPFC_SLI_INTF_IF_TYPE_6:
9765                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9766                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9767                 break;
9768         case LPFC_SLI_INTF_IF_TYPE_1:
9769         default:
9770                 dev_printk(KERN_ERR, &phba->pcidev->dev,
9771                            "FATAL - unsupported SLI4 interface type - %d\n",
9772                            if_type);
9773                 break;
9774         }
9775 }
9776
9777 /**
9778  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
9779  * @phba: pointer to lpfc hba data structure.
9780  *
9781  * This routine is invoked to enable the MSI-X interrupt vectors to device
9782  * with SLI-3 interface specs.
9783  *
9784  * Return codes
9785  *   0 - successful
9786  *   other values - error
9787  **/
9788 static int
9789 lpfc_sli_enable_msix(struct lpfc_hba *phba)
9790 {
9791         int rc;
9792         LPFC_MBOXQ_t *pmb;
9793
9794         /* Set up MSI-X multi-message vectors */
9795         rc = pci_alloc_irq_vectors(phba->pcidev,
9796                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
9797         if (rc < 0) {
9798                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9799                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
9800                 goto vec_fail_out;
9801         }
9802
9803         /*
9804          * Assign MSI-X vectors to interrupt handlers
9805          */
9806
9807         /* vector-0 is associated to slow-path handler */
9808         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
9809                          &lpfc_sli_sp_intr_handler, 0,
9810                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
9811         if (rc) {
9812                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9813                                 "0421 MSI-X slow-path request_irq failed "
9814                                 "(%d)\n", rc);
9815                 goto msi_fail_out;
9816         }
9817
9818         /* vector-1 is associated to fast-path handler */
9819         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
9820                          &lpfc_sli_fp_intr_handler, 0,
9821                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
9822
9823         if (rc) {
9824                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9825                                 "0429 MSI-X fast-path request_irq failed "
9826                                 "(%d)\n", rc);
9827                 goto irq_fail_out;
9828         }
9829
9830         /*
9831          * Configure HBA MSI-X attention conditions to messages
9832          */
9833         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9834
9835         if (!pmb) {
9836                 rc = -ENOMEM;
9837                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9838                                 "0474 Unable to allocate memory for issuing "
9839                                 "MBOX_CONFIG_MSI command\n");
9840                 goto mem_fail_out;
9841         }
9842         rc = lpfc_config_msi(phba, pmb);
9843         if (rc)
9844                 goto mbx_fail_out;
9845         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9846         if (rc != MBX_SUCCESS) {
9847                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
9848                                 "0351 Config MSI mailbox command failed, "
9849                                 "mbxCmd x%x, mbxStatus x%x\n",
9850                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
9851                 goto mbx_fail_out;
9852         }
9853
9854         /* Free memory allocated for mailbox command */
9855         mempool_free(pmb, phba->mbox_mem_pool);
9856         return rc;
9857
9858 mbx_fail_out:
9859         /* Free memory allocated for mailbox command */
9860         mempool_free(pmb, phba->mbox_mem_pool);
9861
9862 mem_fail_out:
9863         /* free the irq already requested */
9864         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
9865
9866 irq_fail_out:
9867         /* free the irq already requested */
9868         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
9869
9870 msi_fail_out:
9871         /* Unconfigure MSI-X capability structure */
9872         pci_free_irq_vectors(phba->pcidev);
9873
9874 vec_fail_out:
9875         return rc;
9876 }
9877
9878 /**
9879  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
9880  * @phba: pointer to lpfc hba data structure.
9881  *
9882  * This routine is invoked to enable the MSI interrupt mode to device with
9883  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
9884  * enable the MSI vector. The device driver is responsible for calling the
9885  * request_irq() to register MSI vector with a interrupt the handler, which
9886  * is done in this function.
9887  *
9888  * Return codes
9889  *      0 - successful
9890  *      other values - error
9891  */
9892 static int
9893 lpfc_sli_enable_msi(struct lpfc_hba *phba)
9894 {
9895         int rc;
9896
9897         rc = pci_enable_msi(phba->pcidev);
9898         if (!rc)
9899                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9900                                 "0462 PCI enable MSI mode success.\n");
9901         else {
9902                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9903                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
9904                 return rc;
9905         }
9906
9907         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9908                          0, LPFC_DRIVER_NAME, phba);
9909         if (rc) {
9910                 pci_disable_msi(phba->pcidev);
9911                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9912                                 "0478 MSI request_irq failed (%d)\n", rc);
9913         }
9914         return rc;
9915 }
9916
9917 /**
9918  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
9919  * @phba: pointer to lpfc hba data structure.
9920  *
9921  * This routine is invoked to enable device interrupt and associate driver's
9922  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
9923  * spec. Depends on the interrupt mode configured to the driver, the driver
9924  * will try to fallback from the configured interrupt mode to an interrupt
9925  * mode which is supported by the platform, kernel, and device in the order
9926  * of:
9927  * MSI-X -> MSI -> IRQ.
9928  *
9929  * Return codes
9930  *   0 - successful
9931  *   other values - error
9932  **/
9933 static uint32_t
9934 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9935 {
9936         uint32_t intr_mode = LPFC_INTR_ERROR;
9937         int retval;
9938
9939         if (cfg_mode == 2) {
9940                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
9941                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
9942                 if (!retval) {
9943                         /* Now, try to enable MSI-X interrupt mode */
9944                         retval = lpfc_sli_enable_msix(phba);
9945                         if (!retval) {
9946                                 /* Indicate initialization to MSI-X mode */
9947                                 phba->intr_type = MSIX;
9948                                 intr_mode = 2;
9949                         }
9950                 }
9951         }
9952
9953         /* Fallback to MSI if MSI-X initialization failed */
9954         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9955                 retval = lpfc_sli_enable_msi(phba);
9956                 if (!retval) {
9957                         /* Indicate initialization to MSI mode */
9958                         phba->intr_type = MSI;
9959                         intr_mode = 1;
9960                 }
9961         }
9962
9963         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9964         if (phba->intr_type == NONE) {
9965                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9966                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9967                 if (!retval) {
9968                         /* Indicate initialization to INTx mode */
9969                         phba->intr_type = INTx;
9970                         intr_mode = 0;
9971                 }
9972         }
9973         return intr_mode;
9974 }
9975
9976 /**
9977  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
9978  * @phba: pointer to lpfc hba data structure.
9979  *
9980  * This routine is invoked to disable device interrupt and disassociate the
9981  * driver's interrupt handler(s) from interrupt vector(s) to device with
9982  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
9983  * release the interrupt vector(s) for the message signaled interrupt.
9984  **/
9985 static void
9986 lpfc_sli_disable_intr(struct lpfc_hba *phba)
9987 {
9988         int nr_irqs, i;
9989
9990         if (phba->intr_type == MSIX)
9991                 nr_irqs = LPFC_MSIX_VECTORS;
9992         else
9993                 nr_irqs = 1;
9994
9995         for (i = 0; i < nr_irqs; i++)
9996                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
9997         pci_free_irq_vectors(phba->pcidev);
9998
9999         /* Reset interrupt management states */
10000         phba->intr_type = NONE;
10001         phba->sli.slistat.sli_intr = 0;
10002 }
10003
10004 /**
10005  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
10006  * @phba: pointer to lpfc hba data structure.
10007  * @vectors: number of msix vectors allocated.
10008  *
10009  * The routine will figure out the CPU affinity assignment for every
10010  * MSI-X vector allocated for the HBA.  The hba_eq_hdl will be updated
10011  * with a pointer to the CPU mask that defines ALL the CPUs this vector
10012  * can be associated with. If the vector can be unquely associated with
10013  * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu.
10014  * In addition, the CPU to IO channel mapping will be calculated
10015  * and the phba->sli4_hba.cpu_map array will reflect this.
10016  */
10017 static void
10018 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
10019 {
10020         struct lpfc_vector_map_info *cpup;
10021         int index = 0;
10022         int vec = 0;
10023         int cpu;
10024 #ifdef CONFIG_X86
10025         struct cpuinfo_x86 *cpuinfo;
10026 #endif
10027
10028         /* Init cpu_map array */
10029         memset(phba->sli4_hba.cpu_map, 0xff,
10030                (sizeof(struct lpfc_vector_map_info) *
10031                phba->sli4_hba.num_present_cpu));
10032
10033         /* Update CPU map with physical id and core id of each CPU */
10034         cpup = phba->sli4_hba.cpu_map;
10035         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
10036 #ifdef CONFIG_X86
10037                 cpuinfo = &cpu_data(cpu);
10038                 cpup->phys_id = cpuinfo->phys_proc_id;
10039                 cpup->core_id = cpuinfo->cpu_core_id;
10040 #else
10041                 /* No distinction between CPUs for other platforms */
10042                 cpup->phys_id = 0;
10043                 cpup->core_id = 0;
10044 #endif
10045                 cpup->channel_id = index;  /* For now round robin */
10046                 cpup->irq = pci_irq_vector(phba->pcidev, vec);
10047                 vec++;
10048                 if (vec >= vectors)
10049                         vec = 0;
10050                 index++;
10051                 if (index >= phba->cfg_fcp_io_channel)
10052                         index = 0;
10053                 cpup++;
10054         }
10055 }
10056
10057
10058 /**
10059  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
10060  * @phba: pointer to lpfc hba data structure.
10061  *
10062  * This routine is invoked to enable the MSI-X interrupt vectors to device
10063  * with SLI-4 interface spec.
10064  *
10065  * Return codes
10066  * 0 - successful
10067  * other values - error
10068  **/
10069 static int
10070 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
10071 {
10072         int vectors, rc, index;
10073         char *name;
10074
10075         /* Set up MSI-X multi-message vectors */
10076         vectors = phba->io_channel_irqs;
10077         if (phba->cfg_fof)
10078                 vectors++;
10079
10080         rc = pci_alloc_irq_vectors(phba->pcidev,
10081                                 (phba->nvmet_support) ? 1 : 2,
10082                                 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
10083         if (rc < 0) {
10084                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10085                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
10086                 goto vec_fail_out;
10087         }
10088         vectors = rc;
10089
10090         /* Assign MSI-X vectors to interrupt handlers */
10091         for (index = 0; index < vectors; index++) {
10092                 name = phba->sli4_hba.hba_eq_hdl[index].handler_name;
10093                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
10094                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
10095                          LPFC_DRIVER_HANDLER_NAME"%d", index);
10096
10097                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10098                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10099                 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1);
10100                 if (phba->cfg_fof && (index == (vectors - 1)))
10101                         rc = request_irq(pci_irq_vector(phba->pcidev, index),
10102                                  &lpfc_sli4_fof_intr_handler, 0,
10103                                  name,
10104                                  &phba->sli4_hba.hba_eq_hdl[index]);
10105                 else
10106                         rc = request_irq(pci_irq_vector(phba->pcidev, index),
10107                                  &lpfc_sli4_hba_intr_handler, 0,
10108                                  name,
10109                                  &phba->sli4_hba.hba_eq_hdl[index]);
10110                 if (rc) {
10111                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10112                                         "0486 MSI-X fast-path (%d) "
10113                                         "request_irq failed (%d)\n", index, rc);
10114                         goto cfg_fail_out;
10115                 }
10116         }
10117
10118         if (phba->cfg_fof)
10119                 vectors--;
10120
10121         if (vectors != phba->io_channel_irqs) {
10122                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10123                                 "3238 Reducing IO channels to match number of "
10124                                 "MSI-X vectors, requested %d got %d\n",
10125                                 phba->io_channel_irqs, vectors);
10126                 if (phba->cfg_fcp_io_channel > vectors)
10127                         phba->cfg_fcp_io_channel = vectors;
10128                 if (phba->cfg_nvme_io_channel > vectors)
10129                         phba->cfg_nvme_io_channel = vectors;
10130                 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel)
10131                         phba->io_channel_irqs = phba->cfg_fcp_io_channel;
10132                 else
10133                         phba->io_channel_irqs = phba->cfg_nvme_io_channel;
10134         }
10135         lpfc_cpu_affinity_check(phba, vectors);
10136
10137         return rc;
10138
10139 cfg_fail_out:
10140         /* free the irq already requested */
10141         for (--index; index >= 0; index--)
10142                 free_irq(pci_irq_vector(phba->pcidev, index),
10143                                 &phba->sli4_hba.hba_eq_hdl[index]);
10144
10145         /* Unconfigure MSI-X capability structure */
10146         pci_free_irq_vectors(phba->pcidev);
10147
10148 vec_fail_out:
10149         return rc;
10150 }
10151
10152 /**
10153  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
10154  * @phba: pointer to lpfc hba data structure.
10155  *
10156  * This routine is invoked to enable the MSI interrupt mode to device with
10157  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
10158  * to enable the MSI vector. The device driver is responsible for calling
10159  * the request_irq() to register MSI vector with a interrupt the handler,
10160  * which is done in this function.
10161  *
10162  * Return codes
10163  *      0 - successful
10164  *      other values - error
10165  **/
10166 static int
10167 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
10168 {
10169         int rc, index;
10170
10171         rc = pci_enable_msi(phba->pcidev);
10172         if (!rc)
10173                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10174                                 "0487 PCI enable MSI mode success.\n");
10175         else {
10176                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10177                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
10178                 return rc;
10179         }
10180
10181         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
10182                          0, LPFC_DRIVER_NAME, phba);
10183         if (rc) {
10184                 pci_disable_msi(phba->pcidev);
10185                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10186                                 "0490 MSI request_irq failed (%d)\n", rc);
10187                 return rc;
10188         }
10189
10190         for (index = 0; index < phba->io_channel_irqs; index++) {
10191                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10192                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10193         }
10194
10195         if (phba->cfg_fof) {
10196                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10197                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10198         }
10199         return 0;
10200 }
10201
10202 /**
10203  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
10204  * @phba: pointer to lpfc hba data structure.
10205  *
10206  * This routine is invoked to enable device interrupt and associate driver's
10207  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
10208  * interface spec. Depends on the interrupt mode configured to the driver,
10209  * the driver will try to fallback from the configured interrupt mode to an
10210  * interrupt mode which is supported by the platform, kernel, and device in
10211  * the order of:
10212  * MSI-X -> MSI -> IRQ.
10213  *
10214  * Return codes
10215  *      0 - successful
10216  *      other values - error
10217  **/
10218 static uint32_t
10219 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10220 {
10221         uint32_t intr_mode = LPFC_INTR_ERROR;
10222         int retval, idx;
10223
10224         if (cfg_mode == 2) {
10225                 /* Preparation before conf_msi mbox cmd */
10226                 retval = 0;
10227                 if (!retval) {
10228                         /* Now, try to enable MSI-X interrupt mode */
10229                         retval = lpfc_sli4_enable_msix(phba);
10230                         if (!retval) {
10231                                 /* Indicate initialization to MSI-X mode */
10232                                 phba->intr_type = MSIX;
10233                                 intr_mode = 2;
10234                         }
10235                 }
10236         }
10237
10238         /* Fallback to MSI if MSI-X initialization failed */
10239         if (cfg_mode >= 1 && phba->intr_type == NONE) {
10240                 retval = lpfc_sli4_enable_msi(phba);
10241                 if (!retval) {
10242                         /* Indicate initialization to MSI mode */
10243                         phba->intr_type = MSI;
10244                         intr_mode = 1;
10245                 }
10246         }
10247
10248         /* Fallback to INTx if both MSI-X/MSI initalization failed */
10249         if (phba->intr_type == NONE) {
10250                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
10251                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10252                 if (!retval) {
10253                         struct lpfc_hba_eq_hdl *eqhdl;
10254
10255                         /* Indicate initialization to INTx mode */
10256                         phba->intr_type = INTx;
10257                         intr_mode = 0;
10258
10259                         for (idx = 0; idx < phba->io_channel_irqs; idx++) {
10260                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
10261                                 eqhdl->idx = idx;
10262                                 eqhdl->phba = phba;
10263                                 atomic_set(&eqhdl->hba_eq_in_use, 1);
10264                         }
10265                         if (phba->cfg_fof) {
10266                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
10267                                 eqhdl->idx = idx;
10268                                 eqhdl->phba = phba;
10269                                 atomic_set(&eqhdl->hba_eq_in_use, 1);
10270                         }
10271                 }
10272         }
10273         return intr_mode;
10274 }
10275
10276 /**
10277  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
10278  * @phba: pointer to lpfc hba data structure.
10279  *
10280  * This routine is invoked to disable device interrupt and disassociate
10281  * the driver's interrupt handler(s) from interrupt vector(s) to device
10282  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
10283  * will release the interrupt vector(s) for the message signaled interrupt.
10284  **/
10285 static void
10286 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
10287 {
10288         /* Disable the currently initialized interrupt mode */
10289         if (phba->intr_type == MSIX) {
10290                 int index;
10291
10292                 /* Free up MSI-X multi-message vectors */
10293                 for (index = 0; index < phba->io_channel_irqs; index++)
10294                         free_irq(pci_irq_vector(phba->pcidev, index),
10295                                         &phba->sli4_hba.hba_eq_hdl[index]);
10296
10297                 if (phba->cfg_fof)
10298                         free_irq(pci_irq_vector(phba->pcidev, index),
10299                                         &phba->sli4_hba.hba_eq_hdl[index]);
10300         } else {
10301                 free_irq(phba->pcidev->irq, phba);
10302         }
10303
10304         pci_free_irq_vectors(phba->pcidev);
10305
10306         /* Reset interrupt management states */
10307         phba->intr_type = NONE;
10308         phba->sli.slistat.sli_intr = 0;
10309 }
10310
10311 /**
10312  * lpfc_unset_hba - Unset SLI3 hba device initialization
10313  * @phba: pointer to lpfc hba data structure.
10314  *
10315  * This routine is invoked to unset the HBA device initialization steps to
10316  * a device with SLI-3 interface spec.
10317  **/
10318 static void
10319 lpfc_unset_hba(struct lpfc_hba *phba)
10320 {
10321         struct lpfc_vport *vport = phba->pport;
10322         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
10323
10324         spin_lock_irq(shost->host_lock);
10325         vport->load_flag |= FC_UNLOADING;
10326         spin_unlock_irq(shost->host_lock);
10327
10328         kfree(phba->vpi_bmask);
10329         kfree(phba->vpi_ids);
10330
10331         lpfc_stop_hba_timers(phba);
10332
10333         phba->pport->work_port_events = 0;
10334
10335         lpfc_sli_hba_down(phba);
10336
10337         lpfc_sli_brdrestart(phba);
10338
10339         lpfc_sli_disable_intr(phba);
10340
10341         return;
10342 }
10343
10344 /**
10345  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
10346  * @phba: Pointer to HBA context object.
10347  *
10348  * This function is called in the SLI4 code path to wait for completion
10349  * of device's XRIs exchange busy. It will check the XRI exchange busy
10350  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
10351  * that, it will check the XRI exchange busy on outstanding FCP and ELS
10352  * I/Os every 30 seconds, log error message, and wait forever. Only when
10353  * all XRI exchange busy complete, the driver unload shall proceed with
10354  * invoking the function reset ioctl mailbox command to the CNA and the
10355  * the rest of the driver unload resource release.
10356  **/
10357 static void
10358 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
10359 {
10360         int wait_time = 0;
10361         int nvme_xri_cmpl = 1;
10362         int nvmet_xri_cmpl = 1;
10363         int fcp_xri_cmpl = 1;
10364         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10365
10366         /* Driver just aborted IOs during the hba_unset process.  Pause
10367          * here to give the HBA time to complete the IO and get entries
10368          * into the abts lists.
10369          */
10370         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
10371
10372         /* Wait for NVME pending IO to flush back to transport. */
10373         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
10374                 lpfc_nvme_wait_for_io_drain(phba);
10375
10376         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10377                 fcp_xri_cmpl =
10378                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
10379         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10380                 nvme_xri_cmpl =
10381                         list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
10382                 nvmet_xri_cmpl =
10383                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10384         }
10385
10386         while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl ||
10387                !nvmet_xri_cmpl) {
10388                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
10389                         if (!nvme_xri_cmpl)
10390                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10391                                                 "6100 NVME XRI exchange busy "
10392                                                 "wait time: %d seconds.\n",
10393                                                 wait_time/1000);
10394                         if (!fcp_xri_cmpl)
10395                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10396                                                 "2877 FCP XRI exchange busy "
10397                                                 "wait time: %d seconds.\n",
10398                                                 wait_time/1000);
10399                         if (!els_xri_cmpl)
10400                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10401                                                 "2878 ELS XRI exchange busy "
10402                                                 "wait time: %d seconds.\n",
10403                                                 wait_time/1000);
10404                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
10405                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
10406                 } else {
10407                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
10408                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
10409                 }
10410                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10411                         nvme_xri_cmpl = list_empty(
10412                                 &phba->sli4_hba.lpfc_abts_nvme_buf_list);
10413                         nvmet_xri_cmpl = list_empty(
10414                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10415                 }
10416
10417                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10418                         fcp_xri_cmpl = list_empty(
10419                                 &phba->sli4_hba.lpfc_abts_scsi_buf_list);
10420
10421                 els_xri_cmpl =
10422                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10423
10424         }
10425 }
10426
10427 /**
10428  * lpfc_sli4_hba_unset - Unset the fcoe hba
10429  * @phba: Pointer to HBA context object.
10430  *
10431  * This function is called in the SLI4 code path to reset the HBA's FCoE
10432  * function. The caller is not required to hold any lock. This routine
10433  * issues PCI function reset mailbox command to reset the FCoE function.
10434  * At the end of the function, it calls lpfc_hba_down_post function to
10435  * free any pending commands.
10436  **/
10437 static void
10438 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
10439 {
10440         int wait_cnt = 0;
10441         LPFC_MBOXQ_t *mboxq;
10442         struct pci_dev *pdev = phba->pcidev;
10443
10444         lpfc_stop_hba_timers(phba);
10445         phba->sli4_hba.intr_enable = 0;
10446
10447         /*
10448          * Gracefully wait out the potential current outstanding asynchronous
10449          * mailbox command.
10450          */
10451
10452         /* First, block any pending async mailbox command from posted */
10453         spin_lock_irq(&phba->hbalock);
10454         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10455         spin_unlock_irq(&phba->hbalock);
10456         /* Now, trying to wait it out if we can */
10457         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10458                 msleep(10);
10459                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
10460                         break;
10461         }
10462         /* Forcefully release the outstanding mailbox command if timed out */
10463         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10464                 spin_lock_irq(&phba->hbalock);
10465                 mboxq = phba->sli.mbox_active;
10466                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
10467                 __lpfc_mbox_cmpl_put(phba, mboxq);
10468                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10469                 phba->sli.mbox_active = NULL;
10470                 spin_unlock_irq(&phba->hbalock);
10471         }
10472
10473         /* Abort all iocbs associated with the hba */
10474         lpfc_sli_hba_iocb_abort(phba);
10475
10476         /* Wait for completion of device XRI exchange busy */
10477         lpfc_sli4_xri_exchange_busy_wait(phba);
10478
10479         /* Disable PCI subsystem interrupt */
10480         lpfc_sli4_disable_intr(phba);
10481
10482         /* Disable SR-IOV if enabled */
10483         if (phba->cfg_sriov_nr_virtfn)
10484                 pci_disable_sriov(pdev);
10485
10486         /* Stop kthread signal shall trigger work_done one more time */
10487         kthread_stop(phba->worker_thread);
10488
10489         /* Unset the queues shared with the hardware then release all
10490          * allocated resources.
10491          */
10492         lpfc_sli4_queue_unset(phba);
10493         lpfc_sli4_queue_destroy(phba);
10494
10495         /* Reset SLI4 HBA FCoE function */
10496         lpfc_pci_function_reset(phba);
10497
10498         /* Stop the SLI4 device port */
10499         phba->pport->work_port_events = 0;
10500 }
10501
10502  /**
10503  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
10504  * @phba: Pointer to HBA context object.
10505  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10506  *
10507  * This function is called in the SLI4 code path to read the port's
10508  * sli4 capabilities.
10509  *
10510  * This function may be be called from any context that can block-wait
10511  * for the completion.  The expectation is that this routine is called
10512  * typically from probe_one or from the online routine.
10513  **/
10514 int
10515 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10516 {
10517         int rc;
10518         struct lpfc_mqe *mqe;
10519         struct lpfc_pc_sli4_params *sli4_params;
10520         uint32_t mbox_tmo;
10521
10522         rc = 0;
10523         mqe = &mboxq->u.mqe;
10524
10525         /* Read the port's SLI4 Parameters port capabilities */
10526         lpfc_pc_sli4_params(mboxq);
10527         if (!phba->sli4_hba.intr_enable)
10528                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10529         else {
10530                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10531                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10532         }
10533
10534         if (unlikely(rc))
10535                 return 1;
10536
10537         sli4_params = &phba->sli4_hba.pc_sli4_params;
10538         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
10539         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
10540         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
10541         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
10542                                              &mqe->un.sli4_params);
10543         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
10544                                              &mqe->un.sli4_params);
10545         sli4_params->proto_types = mqe->un.sli4_params.word3;
10546         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
10547         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
10548         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
10549         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
10550         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
10551         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
10552         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
10553         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
10554         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
10555         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
10556         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
10557         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
10558         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
10559         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
10560         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
10561         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
10562         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
10563         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
10564         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
10565         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
10566
10567         /* Make sure that sge_supp_len can be handled by the driver */
10568         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10569                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10570
10571         return rc;
10572 }
10573
10574 /**
10575  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
10576  * @phba: Pointer to HBA context object.
10577  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10578  *
10579  * This function is called in the SLI4 code path to read the port's
10580  * sli4 capabilities.
10581  *
10582  * This function may be be called from any context that can block-wait
10583  * for the completion.  The expectation is that this routine is called
10584  * typically from probe_one or from the online routine.
10585  **/
10586 int
10587 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10588 {
10589         int rc;
10590         struct lpfc_mqe *mqe = &mboxq->u.mqe;
10591         struct lpfc_pc_sli4_params *sli4_params;
10592         uint32_t mbox_tmo;
10593         int length;
10594         bool exp_wqcq_pages = true;
10595         struct lpfc_sli4_parameters *mbx_sli4_parameters;
10596
10597         /*
10598          * By default, the driver assumes the SLI4 port requires RPI
10599          * header postings.  The SLI4_PARAM response will correct this
10600          * assumption.
10601          */
10602         phba->sli4_hba.rpi_hdrs_in_use = 1;
10603
10604         /* Read the port's SLI4 Config Parameters */
10605         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
10606                   sizeof(struct lpfc_sli4_cfg_mhdr));
10607         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10608                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
10609                          length, LPFC_SLI4_MBX_EMBED);
10610         if (!phba->sli4_hba.intr_enable)
10611                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10612         else {
10613                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10614                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10615         }
10616         if (unlikely(rc))
10617                 return rc;
10618         sli4_params = &phba->sli4_hba.pc_sli4_params;
10619         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
10620         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
10621         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
10622         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
10623         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
10624                                              mbx_sli4_parameters);
10625         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
10626                                              mbx_sli4_parameters);
10627         if (bf_get(cfg_phwq, mbx_sli4_parameters))
10628                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
10629         else
10630                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
10631         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
10632         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
10633         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
10634         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
10635         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
10636         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
10637         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
10638         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
10639         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
10640         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
10641         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
10642                                             mbx_sli4_parameters);
10643         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
10644         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
10645                                            mbx_sli4_parameters);
10646         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
10647         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
10648         phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
10649                               bf_get(cfg_xib, mbx_sli4_parameters));
10650
10651         if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) ||
10652             !phba->nvme_support) {
10653                 phba->nvme_support = 0;
10654                 phba->nvmet_support = 0;
10655                 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_OFF;
10656                 phba->cfg_nvme_io_channel = 0;
10657                 phba->io_channel_irqs = phba->cfg_fcp_io_channel;
10658                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
10659                                 "6101 Disabling NVME support: "
10660                                 "Not supported by firmware: %d %d\n",
10661                                 bf_get(cfg_nvme, mbx_sli4_parameters),
10662                                 bf_get(cfg_xib, mbx_sli4_parameters));
10663
10664                 /* If firmware doesn't support NVME, just use SCSI support */
10665                 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
10666                         return -ENODEV;
10667                 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
10668         }
10669
10670         /* Only embed PBDE for if_type 6 */
10671         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
10672             LPFC_SLI_INTF_IF_TYPE_6) {
10673                 phba->fcp_embed_pbde = 1;
10674                 phba->nvme_embed_pbde = 1;
10675         }
10676
10677         /* PBDE support requires xib be set */
10678         if (!bf_get(cfg_xib, mbx_sli4_parameters)) {
10679                 phba->fcp_embed_pbde = 0;
10680                 phba->nvme_embed_pbde = 0;
10681         }
10682
10683         /*
10684          * To support Suppress Response feature we must satisfy 3 conditions.
10685          * lpfc_suppress_rsp module parameter must be set (default).
10686          * In SLI4-Parameters Descriptor:
10687          * Extended Inline Buffers (XIB) must be supported.
10688          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
10689          * (double negative).
10690          */
10691         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
10692             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
10693                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
10694         else
10695                 phba->cfg_suppress_rsp = 0;
10696
10697         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
10698                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
10699
10700         /* Make sure that sge_supp_len can be handled by the driver */
10701         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10702                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10703
10704         /*
10705          * Check whether the adapter supports an embedded copy of the
10706          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
10707          * to use this option, 128-byte WQEs must be used.
10708          */
10709         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
10710                 phba->fcp_embed_io = 1;
10711         else
10712                 phba->fcp_embed_io = 0;
10713
10714         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
10715                         "6422 XIB %d: FCP %d %d NVME %d %d %d %d\n",
10716                         bf_get(cfg_xib, mbx_sli4_parameters),
10717                         phba->fcp_embed_pbde, phba->fcp_embed_io,
10718                         phba->nvme_support, phba->nvme_embed_pbde,
10719                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
10720
10721         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
10722             LPFC_SLI_INTF_IF_TYPE_2) &&
10723             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
10724                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
10725                 exp_wqcq_pages = false;
10726
10727         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
10728             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
10729             exp_wqcq_pages &&
10730             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
10731                 phba->enab_exp_wqcq_pages = 1;
10732         else
10733                 phba->enab_exp_wqcq_pages = 0;
10734         /*
10735          * Check if the SLI port supports MDS Diagnostics
10736          */
10737         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
10738                 phba->mds_diags_support = 1;
10739         else
10740                 phba->mds_diags_support = 0;
10741         return 0;
10742 }
10743
10744 /**
10745  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
10746  * @pdev: pointer to PCI device
10747  * @pid: pointer to PCI device identifier
10748  *
10749  * This routine is to be called to attach a device with SLI-3 interface spec
10750  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10751  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10752  * information of the device and driver to see if the driver state that it can
10753  * support this kind of device. If the match is successful, the driver core
10754  * invokes this routine. If this routine determines it can claim the HBA, it
10755  * does all the initialization that it needs to do to handle the HBA properly.
10756  *
10757  * Return code
10758  *      0 - driver can claim the device
10759  *      negative value - driver can not claim the device
10760  **/
10761 static int
10762 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
10763 {
10764         struct lpfc_hba   *phba;
10765         struct lpfc_vport *vport = NULL;
10766         struct Scsi_Host  *shost = NULL;
10767         int error;
10768         uint32_t cfg_mode, intr_mode;
10769
10770         /* Allocate memory for HBA structure */
10771         phba = lpfc_hba_alloc(pdev);
10772         if (!phba)
10773                 return -ENOMEM;
10774
10775         /* Perform generic PCI device enabling operation */
10776         error = lpfc_enable_pci_dev(phba);
10777         if (error)
10778                 goto out_free_phba;
10779
10780         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
10781         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
10782         if (error)
10783                 goto out_disable_pci_dev;
10784
10785         /* Set up SLI-3 specific device PCI memory space */
10786         error = lpfc_sli_pci_mem_setup(phba);
10787         if (error) {
10788                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10789                                 "1402 Failed to set up pci memory space.\n");
10790                 goto out_disable_pci_dev;
10791         }
10792
10793         /* Set up SLI-3 specific device driver resources */
10794         error = lpfc_sli_driver_resource_setup(phba);
10795         if (error) {
10796                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10797                                 "1404 Failed to set up driver resource.\n");
10798                 goto out_unset_pci_mem_s3;
10799         }
10800
10801         /* Initialize and populate the iocb list per host */
10802
10803         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
10804         if (error) {
10805                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10806                                 "1405 Failed to initialize iocb list.\n");
10807                 goto out_unset_driver_resource_s3;
10808         }
10809
10810         /* Set up common device driver resources */
10811         error = lpfc_setup_driver_resource_phase2(phba);
10812         if (error) {
10813                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10814                                 "1406 Failed to set up driver resource.\n");
10815                 goto out_free_iocb_list;
10816         }
10817
10818         /* Get the default values for Model Name and Description */
10819         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10820
10821         /* Create SCSI host to the physical port */
10822         error = lpfc_create_shost(phba);
10823         if (error) {
10824                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10825                                 "1407 Failed to create scsi host.\n");
10826                 goto out_unset_driver_resource;
10827         }
10828
10829         /* Configure sysfs attributes */
10830         vport = phba->pport;
10831         error = lpfc_alloc_sysfs_attr(vport);
10832         if (error) {
10833                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10834                                 "1476 Failed to allocate sysfs attr\n");
10835                 goto out_destroy_shost;
10836         }
10837
10838         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10839         /* Now, trying to enable interrupt and bring up the device */
10840         cfg_mode = phba->cfg_use_msi;
10841         while (true) {
10842                 /* Put device to a known state before enabling interrupt */
10843                 lpfc_stop_port(phba);
10844                 /* Configure and enable interrupt */
10845                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
10846                 if (intr_mode == LPFC_INTR_ERROR) {
10847                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10848                                         "0431 Failed to enable interrupt.\n");
10849                         error = -ENODEV;
10850                         goto out_free_sysfs_attr;
10851                 }
10852                 /* SLI-3 HBA setup */
10853                 if (lpfc_sli_hba_setup(phba)) {
10854                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10855                                         "1477 Failed to set up hba\n");
10856                         error = -ENODEV;
10857                         goto out_remove_device;
10858                 }
10859
10860                 /* Wait 50ms for the interrupts of previous mailbox commands */
10861                 msleep(50);
10862                 /* Check active interrupts on message signaled interrupts */
10863                 if (intr_mode == 0 ||
10864                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
10865                         /* Log the current active interrupt mode */
10866                         phba->intr_mode = intr_mode;
10867                         lpfc_log_intr_mode(phba, intr_mode);
10868                         break;
10869                 } else {
10870                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10871                                         "0447 Configure interrupt mode (%d) "
10872                                         "failed active interrupt test.\n",
10873                                         intr_mode);
10874                         /* Disable the current interrupt mode */
10875                         lpfc_sli_disable_intr(phba);
10876                         /* Try next level of interrupt mode */
10877                         cfg_mode = --intr_mode;
10878                 }
10879         }
10880
10881         /* Perform post initialization setup */
10882         lpfc_post_init_setup(phba);
10883
10884         /* Check if there are static vports to be created. */
10885         lpfc_create_static_vport(phba);
10886
10887         return 0;
10888
10889 out_remove_device:
10890         lpfc_unset_hba(phba);
10891 out_free_sysfs_attr:
10892         lpfc_free_sysfs_attr(vport);
10893 out_destroy_shost:
10894         lpfc_destroy_shost(phba);
10895 out_unset_driver_resource:
10896         lpfc_unset_driver_resource_phase2(phba);
10897 out_free_iocb_list:
10898         lpfc_free_iocb_list(phba);
10899 out_unset_driver_resource_s3:
10900         lpfc_sli_driver_resource_unset(phba);
10901 out_unset_pci_mem_s3:
10902         lpfc_sli_pci_mem_unset(phba);
10903 out_disable_pci_dev:
10904         lpfc_disable_pci_dev(phba);
10905         if (shost)
10906                 scsi_host_put(shost);
10907 out_free_phba:
10908         lpfc_hba_free(phba);
10909         return error;
10910 }
10911
10912 /**
10913  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
10914  * @pdev: pointer to PCI device
10915  *
10916  * This routine is to be called to disattach a device with SLI-3 interface
10917  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10918  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10919  * device to be removed from the PCI subsystem properly.
10920  **/
10921 static void
10922 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
10923 {
10924         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
10925         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10926         struct lpfc_vport **vports;
10927         struct lpfc_hba   *phba = vport->phba;
10928         int i;
10929
10930         spin_lock_irq(&phba->hbalock);
10931         vport->load_flag |= FC_UNLOADING;
10932         spin_unlock_irq(&phba->hbalock);
10933
10934         lpfc_free_sysfs_attr(vport);
10935
10936         /* Release all the vports against this physical port */
10937         vports = lpfc_create_vport_work_array(phba);
10938         if (vports != NULL)
10939                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10940                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10941                                 continue;
10942                         fc_vport_terminate(vports[i]->fc_vport);
10943                 }
10944         lpfc_destroy_vport_work_array(phba, vports);
10945
10946         /* Remove FC host and then SCSI host with the physical port */
10947         fc_remove_host(shost);
10948         scsi_remove_host(shost);
10949
10950         lpfc_cleanup(vport);
10951
10952         /*
10953          * Bring down the SLI Layer. This step disable all interrupts,
10954          * clears the rings, discards all mailbox commands, and resets
10955          * the HBA.
10956          */
10957
10958         /* HBA interrupt will be disabled after this call */
10959         lpfc_sli_hba_down(phba);
10960         /* Stop kthread signal shall trigger work_done one more time */
10961         kthread_stop(phba->worker_thread);
10962         /* Final cleanup of txcmplq and reset the HBA */
10963         lpfc_sli_brdrestart(phba);
10964
10965         kfree(phba->vpi_bmask);
10966         kfree(phba->vpi_ids);
10967
10968         lpfc_stop_hba_timers(phba);
10969         spin_lock_irq(&phba->hbalock);
10970         list_del_init(&vport->listentry);
10971         spin_unlock_irq(&phba->hbalock);
10972
10973         lpfc_debugfs_terminate(vport);
10974
10975         /* Disable SR-IOV if enabled */
10976         if (phba->cfg_sriov_nr_virtfn)
10977                 pci_disable_sriov(pdev);
10978
10979         /* Disable interrupt */
10980         lpfc_sli_disable_intr(phba);
10981
10982         scsi_host_put(shost);
10983
10984         /*
10985          * Call scsi_free before mem_free since scsi bufs are released to their
10986          * corresponding pools here.
10987          */
10988         lpfc_scsi_free(phba);
10989         lpfc_mem_free_all(phba);
10990
10991         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
10992                           phba->hbqslimp.virt, phba->hbqslimp.phys);
10993
10994         /* Free resources associated with SLI2 interface */
10995         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
10996                           phba->slim2p.virt, phba->slim2p.phys);
10997
10998         /* unmap adapter SLIM and Control Registers */
10999         iounmap(phba->ctrl_regs_memmap_p);
11000         iounmap(phba->slim_memmap_p);
11001
11002         lpfc_hba_free(phba);
11003
11004         pci_release_mem_regions(pdev);
11005         pci_disable_device(pdev);
11006 }
11007
11008 /**
11009  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
11010  * @pdev: pointer to PCI device
11011  * @msg: power management message
11012  *
11013  * This routine is to be called from the kernel's PCI subsystem to support
11014  * system Power Management (PM) to device with SLI-3 interface spec. When
11015  * PM invokes this method, it quiesces the device by stopping the driver's
11016  * worker thread for the device, turning off device's interrupt and DMA,
11017  * and bring the device offline. Note that as the driver implements the
11018  * minimum PM requirements to a power-aware driver's PM support for the
11019  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11020  * to the suspend() method call will be treated as SUSPEND and the driver will
11021  * fully reinitialize its device during resume() method call, the driver will
11022  * set device to PCI_D3hot state in PCI config space instead of setting it
11023  * according to the @msg provided by the PM.
11024  *
11025  * Return code
11026  *      0 - driver suspended the device
11027  *      Error otherwise
11028  **/
11029 static int
11030 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
11031 {
11032         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11033         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11034
11035         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11036                         "0473 PCI device Power Management suspend.\n");
11037
11038         /* Bring down the device */
11039         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11040         lpfc_offline(phba);
11041         kthread_stop(phba->worker_thread);
11042
11043         /* Disable interrupt from device */
11044         lpfc_sli_disable_intr(phba);
11045
11046         /* Save device state to PCI config space */
11047         pci_save_state(pdev);
11048         pci_set_power_state(pdev, PCI_D3hot);
11049
11050         return 0;
11051 }
11052
11053 /**
11054  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
11055  * @pdev: pointer to PCI device
11056  *
11057  * This routine is to be called from the kernel's PCI subsystem to support
11058  * system Power Management (PM) to device with SLI-3 interface spec. When PM
11059  * invokes this method, it restores the device's PCI config space state and
11060  * fully reinitializes the device and brings it online. Note that as the
11061  * driver implements the minimum PM requirements to a power-aware driver's
11062  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
11063  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
11064  * driver will fully reinitialize its device during resume() method call,
11065  * the device will be set to PCI_D0 directly in PCI config space before
11066  * restoring the state.
11067  *
11068  * Return code
11069  *      0 - driver suspended the device
11070  *      Error otherwise
11071  **/
11072 static int
11073 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
11074 {
11075         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11076         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11077         uint32_t intr_mode;
11078         int error;
11079
11080         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11081                         "0452 PCI device Power Management resume.\n");
11082
11083         /* Restore device state from PCI config space */
11084         pci_set_power_state(pdev, PCI_D0);
11085         pci_restore_state(pdev);
11086
11087         /*
11088          * As the new kernel behavior of pci_restore_state() API call clears
11089          * device saved_state flag, need to save the restored state again.
11090          */
11091         pci_save_state(pdev);
11092
11093         if (pdev->is_busmaster)
11094                 pci_set_master(pdev);
11095
11096         /* Startup the kernel thread for this host adapter. */
11097         phba->worker_thread = kthread_run(lpfc_do_work, phba,
11098                                         "lpfc_worker_%d", phba->brd_no);
11099         if (IS_ERR(phba->worker_thread)) {
11100                 error = PTR_ERR(phba->worker_thread);
11101                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11102                                 "0434 PM resume failed to start worker "
11103                                 "thread: error=x%x.\n", error);
11104                 return error;
11105         }
11106
11107         /* Configure and enable interrupt */
11108         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
11109         if (intr_mode == LPFC_INTR_ERROR) {
11110                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11111                                 "0430 PM resume Failed to enable interrupt\n");
11112                 return -EIO;
11113         } else
11114                 phba->intr_mode = intr_mode;
11115
11116         /* Restart HBA and bring it online */
11117         lpfc_sli_brdrestart(phba);
11118         lpfc_online(phba);
11119
11120         /* Log the current active interrupt mode */
11121         lpfc_log_intr_mode(phba, phba->intr_mode);
11122
11123         return 0;
11124 }
11125
11126 /**
11127  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
11128  * @phba: pointer to lpfc hba data structure.
11129  *
11130  * This routine is called to prepare the SLI3 device for PCI slot recover. It
11131  * aborts all the outstanding SCSI I/Os to the pci device.
11132  **/
11133 static void
11134 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
11135 {
11136         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11137                         "2723 PCI channel I/O abort preparing for recovery\n");
11138
11139         /*
11140          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
11141          * and let the SCSI mid-layer to retry them to recover.
11142          */
11143         lpfc_sli_abort_fcp_rings(phba);
11144 }
11145
11146 /**
11147  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
11148  * @phba: pointer to lpfc hba data structure.
11149  *
11150  * This routine is called to prepare the SLI3 device for PCI slot reset. It
11151  * disables the device interrupt and pci device, and aborts the internal FCP
11152  * pending I/Os.
11153  **/
11154 static void
11155 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
11156 {
11157         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11158                         "2710 PCI channel disable preparing for reset\n");
11159
11160         /* Block any management I/Os to the device */
11161         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
11162
11163         /* Block all SCSI devices' I/Os on the host */
11164         lpfc_scsi_dev_block(phba);
11165
11166         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
11167         lpfc_sli_flush_fcp_rings(phba);
11168
11169         /* stop all timers */
11170         lpfc_stop_hba_timers(phba);
11171
11172         /* Disable interrupt and pci device */
11173         lpfc_sli_disable_intr(phba);
11174         pci_disable_device(phba->pcidev);
11175 }
11176
11177 /**
11178  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
11179  * @phba: pointer to lpfc hba data structure.
11180  *
11181  * This routine is called to prepare the SLI3 device for PCI slot permanently
11182  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
11183  * pending I/Os.
11184  **/
11185 static void
11186 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
11187 {
11188         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11189                         "2711 PCI channel permanent disable for failure\n");
11190         /* Block all SCSI devices' I/Os on the host */
11191         lpfc_scsi_dev_block(phba);
11192
11193         /* stop all timers */
11194         lpfc_stop_hba_timers(phba);
11195
11196         /* Clean up all driver's outstanding SCSI I/Os */
11197         lpfc_sli_flush_fcp_rings(phba);
11198 }
11199
11200 /**
11201  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
11202  * @pdev: pointer to PCI device.
11203  * @state: the current PCI connection state.
11204  *
11205  * This routine is called from the PCI subsystem for I/O error handling to
11206  * device with SLI-3 interface spec. This function is called by the PCI
11207  * subsystem after a PCI bus error affecting this device has been detected.
11208  * When this function is invoked, it will need to stop all the I/Os and
11209  * interrupt(s) to the device. Once that is done, it will return
11210  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
11211  * as desired.
11212  *
11213  * Return codes
11214  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
11215  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11216  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11217  **/
11218 static pci_ers_result_t
11219 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
11220 {
11221         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11222         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11223
11224         switch (state) {
11225         case pci_channel_io_normal:
11226                 /* Non-fatal error, prepare for recovery */
11227                 lpfc_sli_prep_dev_for_recover(phba);
11228                 return PCI_ERS_RESULT_CAN_RECOVER;
11229         case pci_channel_io_frozen:
11230                 /* Fatal error, prepare for slot reset */
11231                 lpfc_sli_prep_dev_for_reset(phba);
11232                 return PCI_ERS_RESULT_NEED_RESET;
11233         case pci_channel_io_perm_failure:
11234                 /* Permanent failure, prepare for device down */
11235                 lpfc_sli_prep_dev_for_perm_failure(phba);
11236                 return PCI_ERS_RESULT_DISCONNECT;
11237         default:
11238                 /* Unknown state, prepare and request slot reset */
11239                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11240                                 "0472 Unknown PCI error state: x%x\n", state);
11241                 lpfc_sli_prep_dev_for_reset(phba);
11242                 return PCI_ERS_RESULT_NEED_RESET;
11243         }
11244 }
11245
11246 /**
11247  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
11248  * @pdev: pointer to PCI device.
11249  *
11250  * This routine is called from the PCI subsystem for error handling to
11251  * device with SLI-3 interface spec. This is called after PCI bus has been
11252  * reset to restart the PCI card from scratch, as if from a cold-boot.
11253  * During the PCI subsystem error recovery, after driver returns
11254  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
11255  * recovery and then call this routine before calling the .resume method
11256  * to recover the device. This function will initialize the HBA device,
11257  * enable the interrupt, but it will just put the HBA to offline state
11258  * without passing any I/O traffic.
11259  *
11260  * Return codes
11261  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11262  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11263  */
11264 static pci_ers_result_t
11265 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
11266 {
11267         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11268         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11269         struct lpfc_sli *psli = &phba->sli;
11270         uint32_t intr_mode;
11271
11272         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
11273         if (pci_enable_device_mem(pdev)) {
11274                 printk(KERN_ERR "lpfc: Cannot re-enable "
11275                         "PCI device after reset.\n");
11276                 return PCI_ERS_RESULT_DISCONNECT;
11277         }
11278
11279         pci_restore_state(pdev);
11280
11281         /*
11282          * As the new kernel behavior of pci_restore_state() API call clears
11283          * device saved_state flag, need to save the restored state again.
11284          */
11285         pci_save_state(pdev);
11286
11287         if (pdev->is_busmaster)
11288                 pci_set_master(pdev);
11289
11290         spin_lock_irq(&phba->hbalock);
11291         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
11292         spin_unlock_irq(&phba->hbalock);
11293
11294         /* Configure and enable interrupt */
11295         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
11296         if (intr_mode == LPFC_INTR_ERROR) {
11297                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11298                                 "0427 Cannot re-enable interrupt after "
11299                                 "slot reset.\n");
11300                 return PCI_ERS_RESULT_DISCONNECT;
11301         } else
11302                 phba->intr_mode = intr_mode;
11303
11304         /* Take device offline, it will perform cleanup */
11305         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11306         lpfc_offline(phba);
11307         lpfc_sli_brdrestart(phba);
11308
11309         /* Log the current active interrupt mode */
11310         lpfc_log_intr_mode(phba, phba->intr_mode);
11311
11312         return PCI_ERS_RESULT_RECOVERED;
11313 }
11314
11315 /**
11316  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
11317  * @pdev: pointer to PCI device
11318  *
11319  * This routine is called from the PCI subsystem for error handling to device
11320  * with SLI-3 interface spec. It is called when kernel error recovery tells
11321  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
11322  * error recovery. After this call, traffic can start to flow from this device
11323  * again.
11324  */
11325 static void
11326 lpfc_io_resume_s3(struct pci_dev *pdev)
11327 {
11328         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11329         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11330
11331         /* Bring device online, it will be no-op for non-fatal error resume */
11332         lpfc_online(phba);
11333
11334         /* Clean up Advanced Error Reporting (AER) if needed */
11335         if (phba->hba_flag & HBA_AER_ENABLED)
11336                 pci_cleanup_aer_uncorrect_error_status(pdev);
11337 }
11338
11339 /**
11340  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
11341  * @phba: pointer to lpfc hba data structure.
11342  *
11343  * returns the number of ELS/CT IOCBs to reserve
11344  **/
11345 int
11346 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
11347 {
11348         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
11349
11350         if (phba->sli_rev == LPFC_SLI_REV4) {
11351                 if (max_xri <= 100)
11352                         return 10;
11353                 else if (max_xri <= 256)
11354                         return 25;
11355                 else if (max_xri <= 512)
11356                         return 50;
11357                 else if (max_xri <= 1024)
11358                         return 100;
11359                 else if (max_xri <= 1536)
11360                         return 150;
11361                 else if (max_xri <= 2048)
11362                         return 200;
11363                 else
11364                         return 250;
11365         } else
11366                 return 0;
11367 }
11368
11369 /**
11370  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
11371  * @phba: pointer to lpfc hba data structure.
11372  *
11373  * returns the number of ELS/CT + NVMET IOCBs to reserve
11374  **/
11375 int
11376 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
11377 {
11378         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
11379
11380         if (phba->nvmet_support)
11381                 max_xri += LPFC_NVMET_BUF_POST;
11382         return max_xri;
11383 }
11384
11385
11386 static void
11387 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
11388         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
11389         const struct firmware *fw)
11390 {
11391         if ((offset == ADD_STATUS_FW_NOT_SUPPORTED) ||
11392             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
11393              magic_number != MAGIC_NUMER_G6) ||
11394             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC &&
11395              magic_number != MAGIC_NUMER_G7))
11396                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11397                         "3030 This firmware version is not supported on "
11398                         "this HBA model. Device:%x Magic:%x Type:%x "
11399                         "ID:%x Size %d %zd\n",
11400                         phba->pcidev->device, magic_number, ftype, fid,
11401                         fsize, fw->size);
11402         else
11403                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11404                         "3022 FW Download failed. Device:%x Magic:%x Type:%x "
11405                         "ID:%x Size %d %zd\n",
11406                         phba->pcidev->device, magic_number, ftype, fid,
11407                         fsize, fw->size);
11408 }
11409
11410
11411 /**
11412  * lpfc_write_firmware - attempt to write a firmware image to the port
11413  * @fw: pointer to firmware image returned from request_firmware.
11414  * @phba: pointer to lpfc hba data structure.
11415  *
11416  **/
11417 static void
11418 lpfc_write_firmware(const struct firmware *fw, void *context)
11419 {
11420         struct lpfc_hba *phba = (struct lpfc_hba *)context;
11421         char fwrev[FW_REV_STR_SIZE];
11422         struct lpfc_grp_hdr *image;
11423         struct list_head dma_buffer_list;
11424         int i, rc = 0;
11425         struct lpfc_dmabuf *dmabuf, *next;
11426         uint32_t offset = 0, temp_offset = 0;
11427         uint32_t magic_number, ftype, fid, fsize;
11428
11429         /* It can be null in no-wait mode, sanity check */
11430         if (!fw) {
11431                 rc = -ENXIO;
11432                 goto out;
11433         }
11434         image = (struct lpfc_grp_hdr *)fw->data;
11435
11436         magic_number = be32_to_cpu(image->magic_number);
11437         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
11438         fid = bf_get_be32(lpfc_grp_hdr_id, image);
11439         fsize = be32_to_cpu(image->size);
11440
11441         INIT_LIST_HEAD(&dma_buffer_list);
11442         lpfc_decode_firmware_rev(phba, fwrev, 1);
11443         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
11444                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11445                                 "3023 Updating Firmware, Current Version:%s "
11446                                 "New Version:%s\n",
11447                                 fwrev, image->revision);
11448                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
11449                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
11450                                          GFP_KERNEL);
11451                         if (!dmabuf) {
11452                                 rc = -ENOMEM;
11453                                 goto release_out;
11454                         }
11455                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
11456                                                           SLI4_PAGE_SIZE,
11457                                                           &dmabuf->phys,
11458                                                           GFP_KERNEL);
11459                         if (!dmabuf->virt) {
11460                                 kfree(dmabuf);
11461                                 rc = -ENOMEM;
11462                                 goto release_out;
11463                         }
11464                         list_add_tail(&dmabuf->list, &dma_buffer_list);
11465                 }
11466                 while (offset < fw->size) {
11467                         temp_offset = offset;
11468                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
11469                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
11470                                         memcpy(dmabuf->virt,
11471                                                fw->data + temp_offset,
11472                                                fw->size - temp_offset);
11473                                         temp_offset = fw->size;
11474                                         break;
11475                                 }
11476                                 memcpy(dmabuf->virt, fw->data + temp_offset,
11477                                        SLI4_PAGE_SIZE);
11478                                 temp_offset += SLI4_PAGE_SIZE;
11479                         }
11480                         rc = lpfc_wr_object(phba, &dma_buffer_list,
11481                                     (fw->size - offset), &offset);
11482                         if (rc) {
11483                                 lpfc_log_write_firmware_error(phba, offset,
11484                                         magic_number, ftype, fid, fsize, fw);
11485                                 goto release_out;
11486                         }
11487                 }
11488                 rc = offset;
11489         } else
11490                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11491                                 "3029 Skipped Firmware update, Current "
11492                                 "Version:%s New Version:%s\n",
11493                                 fwrev, image->revision);
11494
11495 release_out:
11496         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
11497                 list_del(&dmabuf->list);
11498                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
11499                                   dmabuf->virt, dmabuf->phys);
11500                 kfree(dmabuf);
11501         }
11502         release_firmware(fw);
11503 out:
11504         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11505                         "3024 Firmware update done: %d.\n", rc);
11506         return;
11507 }
11508
11509 /**
11510  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
11511  * @phba: pointer to lpfc hba data structure.
11512  *
11513  * This routine is called to perform Linux generic firmware upgrade on device
11514  * that supports such feature.
11515  **/
11516 int
11517 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
11518 {
11519         uint8_t file_name[ELX_MODEL_NAME_SIZE];
11520         int ret;
11521         const struct firmware *fw;
11522
11523         /* Only supported on SLI4 interface type 2 for now */
11524         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
11525             LPFC_SLI_INTF_IF_TYPE_2)
11526                 return -EPERM;
11527
11528         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
11529
11530         if (fw_upgrade == INT_FW_UPGRADE) {
11531                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
11532                                         file_name, &phba->pcidev->dev,
11533                                         GFP_KERNEL, (void *)phba,
11534                                         lpfc_write_firmware);
11535         } else if (fw_upgrade == RUN_FW_UPGRADE) {
11536                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
11537                 if (!ret)
11538                         lpfc_write_firmware(fw, (void *)phba);
11539         } else {
11540                 ret = -EINVAL;
11541         }
11542
11543         return ret;
11544 }
11545
11546 /**
11547  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
11548  * @pdev: pointer to PCI device
11549  * @pid: pointer to PCI device identifier
11550  *
11551  * This routine is called from the kernel's PCI subsystem to device with
11552  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11553  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
11554  * information of the device and driver to see if the driver state that it
11555  * can support this kind of device. If the match is successful, the driver
11556  * core invokes this routine. If this routine determines it can claim the HBA,
11557  * it does all the initialization that it needs to do to handle the HBA
11558  * properly.
11559  *
11560  * Return code
11561  *      0 - driver can claim the device
11562  *      negative value - driver can not claim the device
11563  **/
11564 static int
11565 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
11566 {
11567         struct lpfc_hba   *phba;
11568         struct lpfc_vport *vport = NULL;
11569         struct Scsi_Host  *shost = NULL;
11570         int error;
11571         uint32_t cfg_mode, intr_mode;
11572
11573         /* Allocate memory for HBA structure */
11574         phba = lpfc_hba_alloc(pdev);
11575         if (!phba)
11576                 return -ENOMEM;
11577
11578         /* Perform generic PCI device enabling operation */
11579         error = lpfc_enable_pci_dev(phba);
11580         if (error)
11581                 goto out_free_phba;
11582
11583         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
11584         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
11585         if (error)
11586                 goto out_disable_pci_dev;
11587
11588         /* Set up SLI-4 specific device PCI memory space */
11589         error = lpfc_sli4_pci_mem_setup(phba);
11590         if (error) {
11591                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11592                                 "1410 Failed to set up pci memory space.\n");
11593                 goto out_disable_pci_dev;
11594         }
11595
11596         /* Set up SLI-4 Specific device driver resources */
11597         error = lpfc_sli4_driver_resource_setup(phba);
11598         if (error) {
11599                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11600                                 "1412 Failed to set up driver resource.\n");
11601                 goto out_unset_pci_mem_s4;
11602         }
11603
11604         INIT_LIST_HEAD(&phba->active_rrq_list);
11605         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
11606
11607         /* Set up common device driver resources */
11608         error = lpfc_setup_driver_resource_phase2(phba);
11609         if (error) {
11610                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11611                                 "1414 Failed to set up driver resource.\n");
11612                 goto out_unset_driver_resource_s4;
11613         }
11614
11615         /* Get the default values for Model Name and Description */
11616         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11617
11618         /* Create SCSI host to the physical port */
11619         error = lpfc_create_shost(phba);
11620         if (error) {
11621                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11622                                 "1415 Failed to create scsi host.\n");
11623                 goto out_unset_driver_resource;
11624         }
11625
11626         /* Configure sysfs attributes */
11627         vport = phba->pport;
11628         error = lpfc_alloc_sysfs_attr(vport);
11629         if (error) {
11630                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11631                                 "1416 Failed to allocate sysfs attr\n");
11632                 goto out_destroy_shost;
11633         }
11634
11635         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11636         /* Now, trying to enable interrupt and bring up the device */
11637         cfg_mode = phba->cfg_use_msi;
11638
11639         /* Put device to a known state before enabling interrupt */
11640         lpfc_stop_port(phba);
11641
11642         /* Configure and enable interrupt */
11643         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
11644         if (intr_mode == LPFC_INTR_ERROR) {
11645                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11646                                 "0426 Failed to enable interrupt.\n");
11647                 error = -ENODEV;
11648                 goto out_free_sysfs_attr;
11649         }
11650         /* Default to single EQ for non-MSI-X */
11651         if (phba->intr_type != MSIX) {
11652                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
11653                         phba->cfg_fcp_io_channel = 1;
11654                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11655                         phba->cfg_nvme_io_channel = 1;
11656                         if (phba->nvmet_support)
11657                                 phba->cfg_nvmet_mrq = 1;
11658                 }
11659                 phba->io_channel_irqs = 1;
11660         }
11661
11662         /* Set up SLI-4 HBA */
11663         if (lpfc_sli4_hba_setup(phba)) {
11664                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11665                                 "1421 Failed to set up hba\n");
11666                 error = -ENODEV;
11667                 goto out_disable_intr;
11668         }
11669
11670         /* Log the current active interrupt mode */
11671         phba->intr_mode = intr_mode;
11672         lpfc_log_intr_mode(phba, intr_mode);
11673
11674         /* Perform post initialization setup */
11675         lpfc_post_init_setup(phba);
11676
11677         /* NVME support in FW earlier in the driver load corrects the
11678          * FC4 type making a check for nvme_support unnecessary.
11679          */
11680         if ((phba->nvmet_support == 0) &&
11681             (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
11682                 /* Create NVME binding with nvme_fc_transport. This
11683                  * ensures the vport is initialized.  If the localport
11684                  * create fails, it should not unload the driver to
11685                  * support field issues.
11686                  */
11687                 error = lpfc_nvme_create_localport(vport);
11688                 if (error) {
11689                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11690                                         "6004 NVME registration failed, "
11691                                         "error x%x\n",
11692                                         error);
11693                 }
11694         }
11695
11696         /* check for firmware upgrade or downgrade */
11697         if (phba->cfg_request_firmware_upgrade)
11698                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
11699
11700         /* Check if there are static vports to be created. */
11701         lpfc_create_static_vport(phba);
11702         return 0;
11703
11704 out_disable_intr:
11705         lpfc_sli4_disable_intr(phba);
11706 out_free_sysfs_attr:
11707         lpfc_free_sysfs_attr(vport);
11708 out_destroy_shost:
11709         lpfc_destroy_shost(phba);
11710 out_unset_driver_resource:
11711         lpfc_unset_driver_resource_phase2(phba);
11712 out_unset_driver_resource_s4:
11713         lpfc_sli4_driver_resource_unset(phba);
11714 out_unset_pci_mem_s4:
11715         lpfc_sli4_pci_mem_unset(phba);
11716 out_disable_pci_dev:
11717         lpfc_disable_pci_dev(phba);
11718         if (shost)
11719                 scsi_host_put(shost);
11720 out_free_phba:
11721         lpfc_hba_free(phba);
11722         return error;
11723 }
11724
11725 /**
11726  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
11727  * @pdev: pointer to PCI device
11728  *
11729  * This routine is called from the kernel's PCI subsystem to device with
11730  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11731  * removed from PCI bus, it performs all the necessary cleanup for the HBA
11732  * device to be removed from the PCI subsystem properly.
11733  **/
11734 static void
11735 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
11736 {
11737         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11738         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11739         struct lpfc_vport **vports;
11740         struct lpfc_hba *phba = vport->phba;
11741         int i;
11742
11743         /* Mark the device unloading flag */
11744         spin_lock_irq(&phba->hbalock);
11745         vport->load_flag |= FC_UNLOADING;
11746         spin_unlock_irq(&phba->hbalock);
11747
11748         /* Free the HBA sysfs attributes */
11749         lpfc_free_sysfs_attr(vport);
11750
11751         /* Release all the vports against this physical port */
11752         vports = lpfc_create_vport_work_array(phba);
11753         if (vports != NULL)
11754                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11755                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11756                                 continue;
11757                         fc_vport_terminate(vports[i]->fc_vport);
11758                 }
11759         lpfc_destroy_vport_work_array(phba, vports);
11760
11761         /* Remove FC host and then SCSI host with the physical port */
11762         fc_remove_host(shost);
11763         scsi_remove_host(shost);
11764
11765         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
11766          * localports are destroyed after to cleanup all transport memory.
11767          */
11768         lpfc_cleanup(vport);
11769         lpfc_nvmet_destroy_targetport(phba);
11770         lpfc_nvme_destroy_localport(vport);
11771
11772         /*
11773          * Bring down the SLI Layer. This step disables all interrupts,
11774          * clears the rings, discards all mailbox commands, and resets
11775          * the HBA FCoE function.
11776          */
11777         lpfc_debugfs_terminate(vport);
11778         lpfc_sli4_hba_unset(phba);
11779
11780         lpfc_stop_hba_timers(phba);
11781         spin_lock_irq(&phba->hbalock);
11782         list_del_init(&vport->listentry);
11783         spin_unlock_irq(&phba->hbalock);
11784
11785         /* Perform scsi free before driver resource_unset since scsi
11786          * buffers are released to their corresponding pools here.
11787          */
11788         lpfc_scsi_free(phba);
11789         lpfc_nvme_free(phba);
11790         lpfc_free_iocb_list(phba);
11791
11792         lpfc_unset_driver_resource_phase2(phba);
11793         lpfc_sli4_driver_resource_unset(phba);
11794
11795         /* Unmap adapter Control and Doorbell registers */
11796         lpfc_sli4_pci_mem_unset(phba);
11797
11798         /* Release PCI resources and disable device's PCI function */
11799         scsi_host_put(shost);
11800         lpfc_disable_pci_dev(phba);
11801
11802         /* Finally, free the driver's device data structure */
11803         lpfc_hba_free(phba);
11804
11805         return;
11806 }
11807
11808 /**
11809  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
11810  * @pdev: pointer to PCI device
11811  * @msg: power management message
11812  *
11813  * This routine is called from the kernel's PCI subsystem to support system
11814  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
11815  * this method, it quiesces the device by stopping the driver's worker
11816  * thread for the device, turning off device's interrupt and DMA, and bring
11817  * the device offline. Note that as the driver implements the minimum PM
11818  * requirements to a power-aware driver's PM support for suspend/resume -- all
11819  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
11820  * method call will be treated as SUSPEND and the driver will fully
11821  * reinitialize its device during resume() method call, the driver will set
11822  * device to PCI_D3hot state in PCI config space instead of setting it
11823  * according to the @msg provided by the PM.
11824  *
11825  * Return code
11826  *      0 - driver suspended the device
11827  *      Error otherwise
11828  **/
11829 static int
11830 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
11831 {
11832         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11833         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11834
11835         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11836                         "2843 PCI device Power Management suspend.\n");
11837
11838         /* Bring down the device */
11839         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11840         lpfc_offline(phba);
11841         kthread_stop(phba->worker_thread);
11842
11843         /* Disable interrupt from device */
11844         lpfc_sli4_disable_intr(phba);
11845         lpfc_sli4_queue_destroy(phba);
11846
11847         /* Save device state to PCI config space */
11848         pci_save_state(pdev);
11849         pci_set_power_state(pdev, PCI_D3hot);
11850
11851         return 0;
11852 }
11853
11854 /**
11855  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
11856  * @pdev: pointer to PCI device
11857  *
11858  * This routine is called from the kernel's PCI subsystem to support system
11859  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
11860  * this method, it restores the device's PCI config space state and fully
11861  * reinitializes the device and brings it online. Note that as the driver
11862  * implements the minimum PM requirements to a power-aware driver's PM for
11863  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11864  * to the suspend() method call will be treated as SUSPEND and the driver
11865  * will fully reinitialize its device during resume() method call, the device
11866  * will be set to PCI_D0 directly in PCI config space before restoring the
11867  * state.
11868  *
11869  * Return code
11870  *      0 - driver suspended the device
11871  *      Error otherwise
11872  **/
11873 static int
11874 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
11875 {
11876         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11877         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11878         uint32_t intr_mode;
11879         int error;
11880
11881         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11882                         "0292 PCI device Power Management resume.\n");
11883
11884         /* Restore device state from PCI config space */
11885         pci_set_power_state(pdev, PCI_D0);
11886         pci_restore_state(pdev);
11887
11888         /*
11889          * As the new kernel behavior of pci_restore_state() API call clears
11890          * device saved_state flag, need to save the restored state again.
11891          */
11892         pci_save_state(pdev);
11893
11894         if (pdev->is_busmaster)
11895                 pci_set_master(pdev);
11896
11897          /* Startup the kernel thread for this host adapter. */
11898         phba->worker_thread = kthread_run(lpfc_do_work, phba,
11899                                         "lpfc_worker_%d", phba->brd_no);
11900         if (IS_ERR(phba->worker_thread)) {
11901                 error = PTR_ERR(phba->worker_thread);
11902                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11903                                 "0293 PM resume failed to start worker "
11904                                 "thread: error=x%x.\n", error);
11905                 return error;
11906         }
11907
11908         /* Configure and enable interrupt */
11909         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
11910         if (intr_mode == LPFC_INTR_ERROR) {
11911                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11912                                 "0294 PM resume Failed to enable interrupt\n");
11913                 return -EIO;
11914         } else
11915                 phba->intr_mode = intr_mode;
11916
11917         /* Restart HBA and bring it online */
11918         lpfc_sli_brdrestart(phba);
11919         lpfc_online(phba);
11920
11921         /* Log the current active interrupt mode */
11922         lpfc_log_intr_mode(phba, phba->intr_mode);
11923
11924         return 0;
11925 }
11926
11927 /**
11928  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
11929  * @phba: pointer to lpfc hba data structure.
11930  *
11931  * This routine is called to prepare the SLI4 device for PCI slot recover. It
11932  * aborts all the outstanding SCSI I/Os to the pci device.
11933  **/
11934 static void
11935 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
11936 {
11937         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11938                         "2828 PCI channel I/O abort preparing for recovery\n");
11939         /*
11940          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
11941          * and let the SCSI mid-layer to retry them to recover.
11942          */
11943         lpfc_sli_abort_fcp_rings(phba);
11944 }
11945
11946 /**
11947  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
11948  * @phba: pointer to lpfc hba data structure.
11949  *
11950  * This routine is called to prepare the SLI4 device for PCI slot reset. It
11951  * disables the device interrupt and pci device, and aborts the internal FCP
11952  * pending I/Os.
11953  **/
11954 static void
11955 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
11956 {
11957         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11958                         "2826 PCI channel disable preparing for reset\n");
11959
11960         /* Block any management I/Os to the device */
11961         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
11962
11963         /* Block all SCSI devices' I/Os on the host */
11964         lpfc_scsi_dev_block(phba);
11965
11966         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
11967         lpfc_sli_flush_fcp_rings(phba);
11968
11969         /* Flush the outstanding NVME IOs if fc4 type enabled. */
11970         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
11971                 lpfc_sli_flush_nvme_rings(phba);
11972
11973         /* stop all timers */
11974         lpfc_stop_hba_timers(phba);
11975
11976         /* Disable interrupt and pci device */
11977         lpfc_sli4_disable_intr(phba);
11978         lpfc_sli4_queue_destroy(phba);
11979         pci_disable_device(phba->pcidev);
11980 }
11981
11982 /**
11983  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
11984  * @phba: pointer to lpfc hba data structure.
11985  *
11986  * This routine is called to prepare the SLI4 device for PCI slot permanently
11987  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
11988  * pending I/Os.
11989  **/
11990 static void
11991 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
11992 {
11993         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11994                         "2827 PCI channel permanent disable for failure\n");
11995
11996         /* Block all SCSI devices' I/Os on the host */
11997         lpfc_scsi_dev_block(phba);
11998
11999         /* stop all timers */
12000         lpfc_stop_hba_timers(phba);
12001
12002         /* Clean up all driver's outstanding SCSI I/Os */
12003         lpfc_sli_flush_fcp_rings(phba);
12004
12005         /* Flush the outstanding NVME IOs if fc4 type enabled. */
12006         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12007                 lpfc_sli_flush_nvme_rings(phba);
12008 }
12009
12010 /**
12011  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
12012  * @pdev: pointer to PCI device.
12013  * @state: the current PCI connection state.
12014  *
12015  * This routine is called from the PCI subsystem for error handling to device
12016  * with SLI-4 interface spec. This function is called by the PCI subsystem
12017  * after a PCI bus error affecting this device has been detected. When this
12018  * function is invoked, it will need to stop all the I/Os and interrupt(s)
12019  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
12020  * for the PCI subsystem to perform proper recovery as desired.
12021  *
12022  * Return codes
12023  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12024  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12025  **/
12026 static pci_ers_result_t
12027 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
12028 {
12029         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12030         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12031
12032         switch (state) {
12033         case pci_channel_io_normal:
12034                 /* Non-fatal error, prepare for recovery */
12035                 lpfc_sli4_prep_dev_for_recover(phba);
12036                 return PCI_ERS_RESULT_CAN_RECOVER;
12037         case pci_channel_io_frozen:
12038                 /* Fatal error, prepare for slot reset */
12039                 lpfc_sli4_prep_dev_for_reset(phba);
12040                 return PCI_ERS_RESULT_NEED_RESET;
12041         case pci_channel_io_perm_failure:
12042                 /* Permanent failure, prepare for device down */
12043                 lpfc_sli4_prep_dev_for_perm_failure(phba);
12044                 return PCI_ERS_RESULT_DISCONNECT;
12045         default:
12046                 /* Unknown state, prepare and request slot reset */
12047                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12048                                 "2825 Unknown PCI error state: x%x\n", state);
12049                 lpfc_sli4_prep_dev_for_reset(phba);
12050                 return PCI_ERS_RESULT_NEED_RESET;
12051         }
12052 }
12053
12054 /**
12055  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
12056  * @pdev: pointer to PCI device.
12057  *
12058  * This routine is called from the PCI subsystem for error handling to device
12059  * with SLI-4 interface spec. It is called after PCI bus has been reset to
12060  * restart the PCI card from scratch, as if from a cold-boot. During the
12061  * PCI subsystem error recovery, after the driver returns
12062  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
12063  * recovery and then call this routine before calling the .resume method to
12064  * recover the device. This function will initialize the HBA device, enable
12065  * the interrupt, but it will just put the HBA to offline state without
12066  * passing any I/O traffic.
12067  *
12068  * Return codes
12069  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12070  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12071  */
12072 static pci_ers_result_t
12073 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
12074 {
12075         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12076         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12077         struct lpfc_sli *psli = &phba->sli;
12078         uint32_t intr_mode;
12079
12080         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
12081         if (pci_enable_device_mem(pdev)) {
12082                 printk(KERN_ERR "lpfc: Cannot re-enable "
12083                         "PCI device after reset.\n");
12084                 return PCI_ERS_RESULT_DISCONNECT;
12085         }
12086
12087         pci_restore_state(pdev);
12088
12089         /*
12090          * As the new kernel behavior of pci_restore_state() API call clears
12091          * device saved_state flag, need to save the restored state again.
12092          */
12093         pci_save_state(pdev);
12094
12095         if (pdev->is_busmaster)
12096                 pci_set_master(pdev);
12097
12098         spin_lock_irq(&phba->hbalock);
12099         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
12100         spin_unlock_irq(&phba->hbalock);
12101
12102         /* Configure and enable interrupt */
12103         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
12104         if (intr_mode == LPFC_INTR_ERROR) {
12105                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12106                                 "2824 Cannot re-enable interrupt after "
12107                                 "slot reset.\n");
12108                 return PCI_ERS_RESULT_DISCONNECT;
12109         } else
12110                 phba->intr_mode = intr_mode;
12111
12112         /* Log the current active interrupt mode */
12113         lpfc_log_intr_mode(phba, phba->intr_mode);
12114
12115         return PCI_ERS_RESULT_RECOVERED;
12116 }
12117
12118 /**
12119  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
12120  * @pdev: pointer to PCI device
12121  *
12122  * This routine is called from the PCI subsystem for error handling to device
12123  * with SLI-4 interface spec. It is called when kernel error recovery tells
12124  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
12125  * error recovery. After this call, traffic can start to flow from this device
12126  * again.
12127  **/
12128 static void
12129 lpfc_io_resume_s4(struct pci_dev *pdev)
12130 {
12131         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12132         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12133
12134         /*
12135          * In case of slot reset, as function reset is performed through
12136          * mailbox command which needs DMA to be enabled, this operation
12137          * has to be moved to the io resume phase. Taking device offline
12138          * will perform the necessary cleanup.
12139          */
12140         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
12141                 /* Perform device reset */
12142                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12143                 lpfc_offline(phba);
12144                 lpfc_sli_brdrestart(phba);
12145                 /* Bring the device back online */
12146                 lpfc_online(phba);
12147         }
12148
12149         /* Clean up Advanced Error Reporting (AER) if needed */
12150         if (phba->hba_flag & HBA_AER_ENABLED)
12151                 pci_cleanup_aer_uncorrect_error_status(pdev);
12152 }
12153
12154 /**
12155  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
12156  * @pdev: pointer to PCI device
12157  * @pid: pointer to PCI device identifier
12158  *
12159  * This routine is to be registered to the kernel's PCI subsystem. When an
12160  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
12161  * at PCI device-specific information of the device and driver to see if the
12162  * driver state that it can support this kind of device. If the match is
12163  * successful, the driver core invokes this routine. This routine dispatches
12164  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
12165  * do all the initialization that it needs to do to handle the HBA device
12166  * properly.
12167  *
12168  * Return code
12169  *      0 - driver can claim the device
12170  *      negative value - driver can not claim the device
12171  **/
12172 static int
12173 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
12174 {
12175         int rc;
12176         struct lpfc_sli_intf intf;
12177
12178         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
12179                 return -ENODEV;
12180
12181         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
12182             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
12183                 rc = lpfc_pci_probe_one_s4(pdev, pid);
12184         else
12185                 rc = lpfc_pci_probe_one_s3(pdev, pid);
12186
12187         return rc;
12188 }
12189
12190 /**
12191  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
12192  * @pdev: pointer to PCI device
12193  *
12194  * This routine is to be registered to the kernel's PCI subsystem. When an
12195  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
12196  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
12197  * remove routine, which will perform all the necessary cleanup for the
12198  * device to be removed from the PCI subsystem properly.
12199  **/
12200 static void
12201 lpfc_pci_remove_one(struct pci_dev *pdev)
12202 {
12203         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12204         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12205
12206         switch (phba->pci_dev_grp) {
12207         case LPFC_PCI_DEV_LP:
12208                 lpfc_pci_remove_one_s3(pdev);
12209                 break;
12210         case LPFC_PCI_DEV_OC:
12211                 lpfc_pci_remove_one_s4(pdev);
12212                 break;
12213         default:
12214                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12215                                 "1424 Invalid PCI device group: 0x%x\n",
12216                                 phba->pci_dev_grp);
12217                 break;
12218         }
12219         return;
12220 }
12221
12222 /**
12223  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
12224  * @pdev: pointer to PCI device
12225  * @msg: power management message
12226  *
12227  * This routine is to be registered to the kernel's PCI subsystem to support
12228  * system Power Management (PM). When PM invokes this method, it dispatches
12229  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
12230  * suspend the device.
12231  *
12232  * Return code
12233  *      0 - driver suspended the device
12234  *      Error otherwise
12235  **/
12236 static int
12237 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
12238 {
12239         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12240         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12241         int rc = -ENODEV;
12242
12243         switch (phba->pci_dev_grp) {
12244         case LPFC_PCI_DEV_LP:
12245                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
12246                 break;
12247         case LPFC_PCI_DEV_OC:
12248                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
12249                 break;
12250         default:
12251                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12252                                 "1425 Invalid PCI device group: 0x%x\n",
12253                                 phba->pci_dev_grp);
12254                 break;
12255         }
12256         return rc;
12257 }
12258
12259 /**
12260  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
12261  * @pdev: pointer to PCI device
12262  *
12263  * This routine is to be registered to the kernel's PCI subsystem to support
12264  * system Power Management (PM). When PM invokes this method, it dispatches
12265  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
12266  * resume the device.
12267  *
12268  * Return code
12269  *      0 - driver suspended the device
12270  *      Error otherwise
12271  **/
12272 static int
12273 lpfc_pci_resume_one(struct pci_dev *pdev)
12274 {
12275         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12276         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12277         int rc = -ENODEV;
12278
12279         switch (phba->pci_dev_grp) {
12280         case LPFC_PCI_DEV_LP:
12281                 rc = lpfc_pci_resume_one_s3(pdev);
12282                 break;
12283         case LPFC_PCI_DEV_OC:
12284                 rc = lpfc_pci_resume_one_s4(pdev);
12285                 break;
12286         default:
12287                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12288                                 "1426 Invalid PCI device group: 0x%x\n",
12289                                 phba->pci_dev_grp);
12290                 break;
12291         }
12292         return rc;
12293 }
12294
12295 /**
12296  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
12297  * @pdev: pointer to PCI device.
12298  * @state: the current PCI connection state.
12299  *
12300  * This routine is registered to the PCI subsystem for error handling. This
12301  * function is called by the PCI subsystem after a PCI bus error affecting
12302  * this device has been detected. When this routine is invoked, it dispatches
12303  * the action to the proper SLI-3 or SLI-4 device error detected handling
12304  * routine, which will perform the proper error detected operation.
12305  *
12306  * Return codes
12307  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12308  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12309  **/
12310 static pci_ers_result_t
12311 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
12312 {
12313         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12314         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12315         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
12316
12317         switch (phba->pci_dev_grp) {
12318         case LPFC_PCI_DEV_LP:
12319                 rc = lpfc_io_error_detected_s3(pdev, state);
12320                 break;
12321         case LPFC_PCI_DEV_OC:
12322                 rc = lpfc_io_error_detected_s4(pdev, state);
12323                 break;
12324         default:
12325                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12326                                 "1427 Invalid PCI device group: 0x%x\n",
12327                                 phba->pci_dev_grp);
12328                 break;
12329         }
12330         return rc;
12331 }
12332
12333 /**
12334  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
12335  * @pdev: pointer to PCI device.
12336  *
12337  * This routine is registered to the PCI subsystem for error handling. This
12338  * function is called after PCI bus has been reset to restart the PCI card
12339  * from scratch, as if from a cold-boot. When this routine is invoked, it
12340  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
12341  * routine, which will perform the proper device reset.
12342  *
12343  * Return codes
12344  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12345  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12346  **/
12347 static pci_ers_result_t
12348 lpfc_io_slot_reset(struct pci_dev *pdev)
12349 {
12350         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12351         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12352         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
12353
12354         switch (phba->pci_dev_grp) {
12355         case LPFC_PCI_DEV_LP:
12356                 rc = lpfc_io_slot_reset_s3(pdev);
12357                 break;
12358         case LPFC_PCI_DEV_OC:
12359                 rc = lpfc_io_slot_reset_s4(pdev);
12360                 break;
12361         default:
12362                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12363                                 "1428 Invalid PCI device group: 0x%x\n",
12364                                 phba->pci_dev_grp);
12365                 break;
12366         }
12367         return rc;
12368 }
12369
12370 /**
12371  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
12372  * @pdev: pointer to PCI device
12373  *
12374  * This routine is registered to the PCI subsystem for error handling. It
12375  * is called when kernel error recovery tells the lpfc driver that it is
12376  * OK to resume normal PCI operation after PCI bus error recovery. When
12377  * this routine is invoked, it dispatches the action to the proper SLI-3
12378  * or SLI-4 device io_resume routine, which will resume the device operation.
12379  **/
12380 static void
12381 lpfc_io_resume(struct pci_dev *pdev)
12382 {
12383         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12384         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12385
12386         switch (phba->pci_dev_grp) {
12387         case LPFC_PCI_DEV_LP:
12388                 lpfc_io_resume_s3(pdev);
12389                 break;
12390         case LPFC_PCI_DEV_OC:
12391                 lpfc_io_resume_s4(pdev);
12392                 break;
12393         default:
12394                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12395                                 "1429 Invalid PCI device group: 0x%x\n",
12396                                 phba->pci_dev_grp);
12397                 break;
12398         }
12399         return;
12400 }
12401
12402 /**
12403  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
12404  * @phba: pointer to lpfc hba data structure.
12405  *
12406  * This routine checks to see if OAS is supported for this adapter. If
12407  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
12408  * the enable oas flag is cleared and the pool created for OAS device data
12409  * is destroyed.
12410  *
12411  **/
12412 void
12413 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
12414 {
12415
12416         if (!phba->cfg_EnableXLane)
12417                 return;
12418
12419         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
12420                 phba->cfg_fof = 1;
12421         } else {
12422                 phba->cfg_fof = 0;
12423                 if (phba->device_data_mem_pool)
12424                         mempool_destroy(phba->device_data_mem_pool);
12425                 phba->device_data_mem_pool = NULL;
12426         }
12427
12428         return;
12429 }
12430
12431 /**
12432  * lpfc_fof_queue_setup - Set up all the fof queues
12433  * @phba: pointer to lpfc hba data structure.
12434  *
12435  * This routine is invoked to set up all the fof queues for the FC HBA
12436  * operation.
12437  *
12438  * Return codes
12439  *      0 - successful
12440  *      -ENOMEM - No available memory
12441  **/
12442 int
12443 lpfc_fof_queue_setup(struct lpfc_hba *phba)
12444 {
12445         struct lpfc_sli_ring *pring;
12446         int rc;
12447
12448         rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
12449         if (rc)
12450                 return -ENOMEM;
12451
12452         if (phba->cfg_fof) {
12453
12454                 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
12455                                     phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
12456                 if (rc)
12457                         goto out_oas_cq;
12458
12459                 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
12460                                     phba->sli4_hba.oas_cq, LPFC_FCP);
12461                 if (rc)
12462                         goto out_oas_wq;
12463
12464                 /* Bind this CQ/WQ to the NVME ring */
12465                 pring = phba->sli4_hba.oas_wq->pring;
12466                 pring->sli.sli4.wqp =
12467                         (void *)phba->sli4_hba.oas_wq;
12468                 phba->sli4_hba.oas_cq->pring = pring;
12469         }
12470
12471         return 0;
12472
12473 out_oas_wq:
12474         lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
12475 out_oas_cq:
12476         lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
12477         return rc;
12478
12479 }
12480
12481 /**
12482  * lpfc_fof_queue_create - Create all the fof queues
12483  * @phba: pointer to lpfc hba data structure.
12484  *
12485  * This routine is invoked to allocate all the fof queues for the FC HBA
12486  * operation. For each SLI4 queue type, the parameters such as queue entry
12487  * count (queue depth) shall be taken from the module parameter. For now,
12488  * we just use some constant number as place holder.
12489  *
12490  * Return codes
12491  *      0 - successful
12492  *      -ENOMEM - No availble memory
12493  *      -EIO - The mailbox failed to complete successfully.
12494  **/
12495 int
12496 lpfc_fof_queue_create(struct lpfc_hba *phba)
12497 {
12498         struct lpfc_queue *qdesc;
12499         uint32_t wqesize;
12500
12501         /* Create FOF EQ */
12502         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
12503                                       phba->sli4_hba.eq_esize,
12504                                       phba->sli4_hba.eq_ecount);
12505         if (!qdesc)
12506                 goto out_error;
12507
12508         qdesc->qe_valid = 1;
12509         phba->sli4_hba.fof_eq = qdesc;
12510
12511         if (phba->cfg_fof) {
12512
12513                 /* Create OAS CQ */
12514                 if (phba->enab_exp_wqcq_pages)
12515                         qdesc = lpfc_sli4_queue_alloc(phba,
12516                                                       LPFC_EXPANDED_PAGE_SIZE,
12517                                                       phba->sli4_hba.cq_esize,
12518                                                       LPFC_CQE_EXP_COUNT);
12519                 else
12520                         qdesc = lpfc_sli4_queue_alloc(phba,
12521                                                       LPFC_DEFAULT_PAGE_SIZE,
12522                                                       phba->sli4_hba.cq_esize,
12523                                                       phba->sli4_hba.cq_ecount);
12524                 if (!qdesc)
12525                         goto out_error;
12526
12527                 qdesc->qe_valid = 1;
12528                 phba->sli4_hba.oas_cq = qdesc;
12529
12530                 /* Create OAS WQ */
12531                 if (phba->enab_exp_wqcq_pages) {
12532                         wqesize = (phba->fcp_embed_io) ?
12533                                 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
12534                         qdesc = lpfc_sli4_queue_alloc(phba,
12535                                                       LPFC_EXPANDED_PAGE_SIZE,
12536                                                       wqesize,
12537                                                       LPFC_WQE_EXP_COUNT);
12538                 } else
12539                         qdesc = lpfc_sli4_queue_alloc(phba,
12540                                                       LPFC_DEFAULT_PAGE_SIZE,
12541                                                       phba->sli4_hba.wq_esize,
12542                                                       phba->sli4_hba.wq_ecount);
12543
12544                 if (!qdesc)
12545                         goto out_error;
12546
12547                 phba->sli4_hba.oas_wq = qdesc;
12548                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
12549
12550         }
12551         return 0;
12552
12553 out_error:
12554         lpfc_fof_queue_destroy(phba);
12555         return -ENOMEM;
12556 }
12557
12558 /**
12559  * lpfc_fof_queue_destroy - Destroy all the fof queues
12560  * @phba: pointer to lpfc hba data structure.
12561  *
12562  * This routine is invoked to release all the SLI4 queues with the FC HBA
12563  * operation.
12564  *
12565  * Return codes
12566  *      0 - successful
12567  **/
12568 int
12569 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
12570 {
12571         /* Release FOF Event queue */
12572         if (phba->sli4_hba.fof_eq != NULL) {
12573                 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
12574                 phba->sli4_hba.fof_eq = NULL;
12575         }
12576
12577         /* Release OAS Completion queue */
12578         if (phba->sli4_hba.oas_cq != NULL) {
12579                 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
12580                 phba->sli4_hba.oas_cq = NULL;
12581         }
12582
12583         /* Release OAS Work queue */
12584         if (phba->sli4_hba.oas_wq != NULL) {
12585                 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
12586                 phba->sli4_hba.oas_wq = NULL;
12587         }
12588         return 0;
12589 }
12590
12591 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
12592
12593 static const struct pci_error_handlers lpfc_err_handler = {
12594         .error_detected = lpfc_io_error_detected,
12595         .slot_reset = lpfc_io_slot_reset,
12596         .resume = lpfc_io_resume,
12597 };
12598
12599 static struct pci_driver lpfc_driver = {
12600         .name           = LPFC_DRIVER_NAME,
12601         .id_table       = lpfc_id_table,
12602         .probe          = lpfc_pci_probe_one,
12603         .remove         = lpfc_pci_remove_one,
12604         .shutdown       = lpfc_pci_remove_one,
12605         .suspend        = lpfc_pci_suspend_one,
12606         .resume         = lpfc_pci_resume_one,
12607         .err_handler    = &lpfc_err_handler,
12608 };
12609
12610 static const struct file_operations lpfc_mgmt_fop = {
12611         .owner = THIS_MODULE,
12612 };
12613
12614 static struct miscdevice lpfc_mgmt_dev = {
12615         .minor = MISC_DYNAMIC_MINOR,
12616         .name = "lpfcmgmt",
12617         .fops = &lpfc_mgmt_fop,
12618 };
12619
12620 /**
12621  * lpfc_init - lpfc module initialization routine
12622  *
12623  * This routine is to be invoked when the lpfc module is loaded into the
12624  * kernel. The special kernel macro module_init() is used to indicate the
12625  * role of this routine to the kernel as lpfc module entry point.
12626  *
12627  * Return codes
12628  *   0 - successful
12629  *   -ENOMEM - FC attach transport failed
12630  *   all others - failed
12631  */
12632 static int __init
12633 lpfc_init(void)
12634 {
12635         int error = 0;
12636
12637         printk(LPFC_MODULE_DESC "\n");
12638         printk(LPFC_COPYRIGHT "\n");
12639
12640         error = misc_register(&lpfc_mgmt_dev);
12641         if (error)
12642                 printk(KERN_ERR "Could not register lpfcmgmt device, "
12643                         "misc_register returned with status %d", error);
12644
12645         lpfc_transport_functions.vport_create = lpfc_vport_create;
12646         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
12647         lpfc_transport_template =
12648                                 fc_attach_transport(&lpfc_transport_functions);
12649         if (lpfc_transport_template == NULL)
12650                 return -ENOMEM;
12651         lpfc_vport_transport_template =
12652                 fc_attach_transport(&lpfc_vport_transport_functions);
12653         if (lpfc_vport_transport_template == NULL) {
12654                 fc_release_transport(lpfc_transport_template);
12655                 return -ENOMEM;
12656         }
12657         lpfc_nvme_cmd_template();
12658         lpfc_nvmet_cmd_template();
12659
12660         /* Initialize in case vector mapping is needed */
12661         lpfc_used_cpu = NULL;
12662         lpfc_present_cpu = num_present_cpus();
12663
12664         error = pci_register_driver(&lpfc_driver);
12665         if (error) {
12666                 fc_release_transport(lpfc_transport_template);
12667                 fc_release_transport(lpfc_vport_transport_template);
12668         }
12669
12670         return error;
12671 }
12672
12673 /**
12674  * lpfc_exit - lpfc module removal routine
12675  *
12676  * This routine is invoked when the lpfc module is removed from the kernel.
12677  * The special kernel macro module_exit() is used to indicate the role of
12678  * this routine to the kernel as lpfc module exit point.
12679  */
12680 static void __exit
12681 lpfc_exit(void)
12682 {
12683         misc_deregister(&lpfc_mgmt_dev);
12684         pci_unregister_driver(&lpfc_driver);
12685         fc_release_transport(lpfc_transport_template);
12686         fc_release_transport(lpfc_vport_transport_template);
12687         if (_dump_buf_data) {
12688                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
12689                                 "_dump_buf_data at 0x%p\n",
12690                                 (1L << _dump_buf_data_order), _dump_buf_data);
12691                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
12692         }
12693
12694         if (_dump_buf_dif) {
12695                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
12696                                 "_dump_buf_dif at 0x%p\n",
12697                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
12698                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
12699         }
12700         kfree(lpfc_used_cpu);
12701         idr_destroy(&lpfc_hba_index);
12702 }
12703
12704 module_init(lpfc_init);
12705 module_exit(lpfc_exit);
12706 MODULE_LICENSE("GPL");
12707 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
12708 MODULE_AUTHOR("Broadcom");
12709 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);