drivers/scsi/lpfc/lpfc_init.c

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2017-2020 Broadcom. All Rights Reserved. The term *
   5  * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.  *
   6  * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
   7  * EMULEX and SLI are trademarks of Emulex.                        *
   8  * www.broadcom.com                                                *
   9  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
  10  *                                                                 *
  11  * This program is free software; you can redistribute it and/or   *
  12  * modify it under the terms of version 2 of the GNU General       *
  13  * Public License as published by the Free Software Foundation.    *
  14  * This program is distributed in the hope that it will be useful. *
  15  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  16  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  17  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  18  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  19  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  20  * more details, a copy of which can be found in the file COPYING  *
  21  * included with this package.                                     *
  22  *******************************************************************/
  23
  24 #include <linux/blkdev.h>
  25 #include <linux/delay.h>
  26 #include <linux/dma-mapping.h>
  27 #include <linux/idr.h>
  28 #include <linux/interrupt.h>
  29 #include <linux/module.h>
  30 #include <linux/kthread.h>
  31 #include <linux/pci.h>
  32 #include <linux/spinlock.h>
  33 #include <linux/ctype.h>
  34 #include <linux/aer.h>
  35 #include <linux/slab.h>
  36 #include <linux/firmware.h>
  37 #include <linux/miscdevice.h>
  38 #include <linux/percpu.h>
  39 #include <linux/msi.h>
  40 #include <linux/irq.h>
  41 #include <linux/bitops.h>
  42 #include <linux/crash_dump.h>
  43 #include <linux/cpu.h>
  44 #include <linux/cpuhotplug.h>
  45
  46 #include <scsi/scsi.h>
  47 #include <scsi/scsi_device.h>
  48 #include <scsi/scsi_host.h>
  49 #include <scsi/scsi_transport_fc.h>
  50 #include <scsi/scsi_tcq.h>
  51 #include <scsi/fc/fc_fs.h>
  52
  53 #include <linux/nvme-fc-driver.h>
  54
  55 #include "lpfc_hw4.h"
  56 #include "lpfc_hw.h"
  57 #include "lpfc_sli.h"
  58 #include "lpfc_sli4.h"
  59 #include "lpfc_nl.h"
  60 #include "lpfc_disc.h"
  61 #include "lpfc.h"
  62 #include "lpfc_scsi.h"
  63 #include "lpfc_nvme.h"
  64 #include "lpfc_nvmet.h"
  65 #include "lpfc_logmsg.h"
  66 #include "lpfc_crtn.h"
  67 #include "lpfc_vport.h"
  68 #include "lpfc_version.h"
  69 #include "lpfc_ids.h"
  70
  71 static enum cpuhp_state lpfc_cpuhp_state;
  72 /* Used when mapping IRQ vectors in a driver centric manner */
  73 static uint32_t lpfc_present_cpu;
  74
  75 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba);
  76 static void lpfc_cpuhp_remove(struct lpfc_hba *phba);
  77 static void lpfc_cpuhp_add(struct lpfc_hba *phba);
  78 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  79 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  80 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  81 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  82 static int lpfc_setup_endian_order(struct lpfc_hba *);
  83 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  84 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  85 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  86 static void lpfc_init_sgl_list(struct lpfc_hba *);
  87 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  88 static void lpfc_free_active_sgl(struct lpfc_hba *);
  89 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  90 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  91 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  92 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  93 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  94 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  95 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  96 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  97 static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
  98 static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *);
  99
 100 static struct scsi_transport_template *lpfc_transport_template = NULL;
 101 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
 102 static DEFINE_IDR(lpfc_hba_index);
 103 #define LPFC_NVMET_BUF_POST 254
 104
 105 /**
 106  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 107  * @phba: pointer to lpfc hba data structure.
 108  *
 109  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 110  * mailbox command. It retrieves the revision information from the HBA and
 111  * collects the Vital Product Data (VPD) about the HBA for preparing the
 112  * configuration of the HBA.
 113  *
 114  * Return codes:
 115  *   0 - success.
 116  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 117  *   Any other value - indicates an error.
 118  **/
 119 int
 120 lpfc_config_port_prep(struct lpfc_hba *phba)
 121 {
 122         lpfc_vpd_t *vp = &phba->vpd;
 123         int i = 0, rc;
 124         LPFC_MBOXQ_t *pmb;
 125         MAILBOX_t *mb;
 126         char *lpfc_vpd_data = NULL;
 127         uint16_t offset = 0;
 128         static char licensed[56] =
 129                     "key unlock for use with gnu public licensed code only\0";
 130         static int init_key = 1;
 131
 132         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 133         if (!pmb) {
 134                 phba->link_state = LPFC_HBA_ERROR;
 135                 return -ENOMEM;
 136         }
 137
 138         mb = &pmb->u.mb;
 139         phba->link_state = LPFC_INIT_MBX_CMDS;
 140
 141         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 142                 if (init_key) {
 143                         uint32_t *ptext = (uint32_t *) licensed;
 144
 145                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 146                                 *ptext = cpu_to_be32(*ptext);
 147                         init_key = 0;
 148                 }
 149
 150                 lpfc_read_nv(phba, pmb);
 151                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 152                         sizeof (mb->un.varRDnvp.rsvd3));
 153                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 154                          sizeof (licensed));
 155
 156                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 157
 158                 if (rc != MBX_SUCCESS) {
 159                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 160                                         "0324 Config Port initialization "
 161                                         "error, mbxCmd x%x READ_NVPARM, "
 162                                         "mbxStatus x%x\n",
 163                                         mb->mbxCommand, mb->mbxStatus);
 164                         mempool_free(pmb, phba->mbox_mem_pool);
 165                         return -ERESTART;
 166                 }
 167                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 168                        sizeof(phba->wwnn));
 169                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 170                        sizeof(phba->wwpn));
 171         }
 172
 173         /*
 174          * Clear all option bits except LPFC_SLI3_BG_ENABLED,
 175          * which was already set in lpfc_get_cfgparam()
 176          */
 177         phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
 178
 179         /* Setup and issue mailbox READ REV command */
 180         lpfc_read_rev(phba, pmb);
 181         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 182         if (rc != MBX_SUCCESS) {
 183                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 184                                 "0439 Adapter failed to init, mbxCmd x%x "
 185                                 "READ_REV, mbxStatus x%x\n",
 186                                 mb->mbxCommand, mb->mbxStatus);
 187                 mempool_free( pmb, phba->mbox_mem_pool);
 188                 return -ERESTART;
 189         }
 190
 191
 192         /*
 193          * The value of rr must be 1 since the driver set the cv field to 1.
 194          * This setting requires the FW to set all revision fields.
 195          */
 196         if (mb->un.varRdRev.rr == 0) {
 197                 vp->rev.rBit = 0;
 198                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 199                                 "0440 Adapter failed to init, READ_REV has "
 200                                 "missing revision information.\n");
 201                 mempool_free(pmb, phba->mbox_mem_pool);
 202                 return -ERESTART;
 203         }
 204
 205         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 206                 mempool_free(pmb, phba->mbox_mem_pool);
 207                 return -EINVAL;
 208         }
 209
 210         /* Save information as VPD data */
 211         vp->rev.rBit = 1;
 212         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 213         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 214         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 215         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 216         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 217         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 218         vp->rev.smRev = mb->un.varRdRev.smRev;
 219         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 220         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 221         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 222         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 223         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 224         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 225         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 226         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 227
 228         /* If the sli feature level is less then 9, we must
 229          * tear down all RPIs and VPIs on link down if NPIV
 230          * is enabled.
 231          */
 232         if (vp->rev.feaLevelHigh < 9)
 233                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 234
 235         if (lpfc_is_LC_HBA(phba->pcidev->device))
 236                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 237                                                 sizeof (phba->RandomData));
 238
 239         /* Get adapter VPD information */
 240         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 241         if (!lpfc_vpd_data)
 242                 goto out_free_mbox;
 243         do {
 244                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 245                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 246
 247                 if (rc != MBX_SUCCESS) {
 248                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 249                                         "0441 VPD not present on adapter, "
 250                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 251                                         mb->mbxCommand, mb->mbxStatus);
 252                         mb->un.varDmp.word_cnt = 0;
 253                 }
 254                 /* dump mem may return a zero when finished or we got a
 255                  * mailbox error, either way we are done.
 256                  */
 257                 if (mb->un.varDmp.word_cnt == 0)
 258                         break;
 259                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 260                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 261                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 262                                       lpfc_vpd_data + offset,
 263                                       mb->un.varDmp.word_cnt);
 264                 offset += mb->un.varDmp.word_cnt;
 265         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 266         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 267
 268         kfree(lpfc_vpd_data);
 269 out_free_mbox:
 270         mempool_free(pmb, phba->mbox_mem_pool);
 271         return 0;
 272 }
 273
 274 /**
 275  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 276  * @phba: pointer to lpfc hba data structure.
 277  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 278  *
 279  * This is the completion handler for driver's configuring asynchronous event
 280  * mailbox command to the device. If the mailbox command returns successfully,
 281  * it will set internal async event support flag to 1; otherwise, it will
 282  * set internal async event support flag to 0.
 283  **/
 284 static void
 285 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 286 {
 287         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 288                 phba->temp_sensor_support = 1;
 289         else
 290                 phba->temp_sensor_support = 0;
 291         mempool_free(pmboxq, phba->mbox_mem_pool);
 292         return;
 293 }
 294
 295 /**
 296  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 297  * @phba: pointer to lpfc hba data structure.
 298  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 299  *
 300  * This is the completion handler for dump mailbox command for getting
 301  * wake up parameters. When this command complete, the response contain
 302  * Option rom version of the HBA. This function translate the version number
 303  * into a human readable string and store it in OptionROMVersion.
 304  **/
 305 static void
 306 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 307 {
 308         struct prog_id *prg;
 309         uint32_t prog_id_word;
 310         char dist = ' ';
 311         /* character array used for decoding dist type. */
 312         char dist_char[] = "nabx";
 313
 314         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 315                 mempool_free(pmboxq, phba->mbox_mem_pool);
 316                 return;
 317         }
 318
 319         prg = (struct prog_id *) &prog_id_word;
 320
 321         /* word 7 contain option rom version */
 322         prog_id_word = pmboxq->u.mb.un.varWords[7];
 323
 324         /* Decode the Option rom version word to a readable string */
 325         if (prg->dist < 4)
 326                 dist = dist_char[prg->dist];
 327
 328         if ((prg->dist == 3) && (prg->num == 0))
 329                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 330                         prg->ver, prg->rev, prg->lev);
 331         else
 332                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 333                         prg->ver, prg->rev, prg->lev,
 334                         dist, prg->num);
 335         mempool_free(pmboxq, phba->mbox_mem_pool);
 336         return;
 337 }
 338
 339 /**
 340  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 341  *      cfg_soft_wwnn, cfg_soft_wwpn
 342  * @vport: pointer to lpfc vport data structure.
 343  *
 344  *
 345  * Return codes
 346  *   None.
 347  **/
 348 void
 349 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 350 {
 351         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 352         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 353
 354         /* If the soft name exists then update it using the service params */
 355         if (vport->phba->cfg_soft_wwnn)
 356                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 357                            vport->fc_sparam.nodeName.u.wwn);
 358         if (vport->phba->cfg_soft_wwpn)
 359                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 360                            vport->fc_sparam.portName.u.wwn);
 361
 362         /*
 363          * If the name is empty or there exists a soft name
 364          * then copy the service params name, otherwise use the fc name
 365          */
 366         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 367                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 368                         sizeof(struct lpfc_name));
 369         else
 370                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 371                         sizeof(struct lpfc_name));
 372
 373         /*
 374          * If the port name has changed, then set the Param changes flag
 375          * to unreg the login
 376          */
 377         if (vport->fc_portname.u.wwn[0] != 0 &&
 378                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 379                         sizeof(struct lpfc_name)))
 380                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 381
 382         if (vport->fc_portname.u.wwn[0] == 0 ||
 383             vport->phba->cfg_soft_wwpn ||
 384             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 385             vport->vport_flag & FAWWPN_SET) {
 386                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 387                         sizeof(struct lpfc_name));
 388                 vport->vport_flag &= ~FAWWPN_SET;
 389                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 390                         vport->vport_flag |= FAWWPN_SET;
 391         }
 392         else
 393                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 394                         sizeof(struct lpfc_name));
 395 }
 396
 397 /**
 398  * lpfc_config_port_post - Perform lpfc initialization after config port
 399  * @phba: pointer to lpfc hba data structure.
 400  *
 401  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 402  * command call. It performs all internal resource and state setups on the
 403  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 404  * ELS ring timers, etc.
 405  *
 406  * Return codes
 407  *   0 - success.
 408  *   Any other value - error.
 409  **/
 410 int
 411 lpfc_config_port_post(struct lpfc_hba *phba)
 412 {
 413         struct lpfc_vport *vport = phba->pport;
 414         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 415         LPFC_MBOXQ_t *pmb;
 416         MAILBOX_t *mb;
 417         struct lpfc_dmabuf *mp;
 418         struct lpfc_sli *psli = &phba->sli;
 419         uint32_t status, timeout;
 420         int i, j;
 421         int rc;
 422
 423         spin_lock_irq(&phba->hbalock);
 424         /*
 425          * If the Config port completed correctly the HBA is not
 426          * over heated any more.
 427          */
 428         if (phba->over_temp_state == HBA_OVER_TEMP)
 429                 phba->over_temp_state = HBA_NORMAL_TEMP;
 430         spin_unlock_irq(&phba->hbalock);
 431
 432         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 433         if (!pmb) {
 434                 phba->link_state = LPFC_HBA_ERROR;
 435                 return -ENOMEM;
 436         }
 437         mb = &pmb->u.mb;
 438
 439         /* Get login parameters for NID.  */
 440         rc = lpfc_read_sparam(phba, pmb, 0);
 441         if (rc) {
 442                 mempool_free(pmb, phba->mbox_mem_pool);
 443                 return -ENOMEM;
 444         }
 445
 446         pmb->vport = vport;
 447         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 448                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 449                                 "0448 Adapter failed init, mbxCmd x%x "
 450                                 "READ_SPARM mbxStatus x%x\n",
 451                                 mb->mbxCommand, mb->mbxStatus);
 452                 phba->link_state = LPFC_HBA_ERROR;
 453                 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 454                 mempool_free(pmb, phba->mbox_mem_pool);
 455                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 456                 kfree(mp);
 457                 return -EIO;
 458         }
 459
 460         mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 461
 462         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 463         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 464         kfree(mp);
 465         pmb->ctx_buf = NULL;
 466         lpfc_update_vport_wwn(vport);
 467
 468         /* Update the fc_host data structures with new wwn. */
 469         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 470         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 471         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 472
 473         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 474         /* This should be consolidated into parse_vpd ? - mr */
 475         if (phba->SerialNumber[0] == 0) {
 476                 uint8_t *outptr;
 477
 478                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 479                 for (i = 0; i < 12; i++) {
 480                         status = *outptr++;
 481                         j = ((status & 0xf0) >> 4);
 482                         if (j <= 9)
 483                                 phba->SerialNumber[i] =
 484                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 485                         else
 486                                 phba->SerialNumber[i] =
 487                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 488                         i++;
 489                         j = (status & 0xf);
 490                         if (j <= 9)
 491                                 phba->SerialNumber[i] =
 492                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 493                         else
 494                                 phba->SerialNumber[i] =
 495                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 496                 }
 497         }
 498
 499         lpfc_read_config(phba, pmb);
 500         pmb->vport = vport;
 501         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 502                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 503                                 "0453 Adapter failed to init, mbxCmd x%x "
 504                                 "READ_CONFIG, mbxStatus x%x\n",
 505                                 mb->mbxCommand, mb->mbxStatus);
 506                 phba->link_state = LPFC_HBA_ERROR;
 507                 mempool_free( pmb, phba->mbox_mem_pool);
 508                 return -EIO;
 509         }
 510
 511         /* Check if the port is disabled */
 512         lpfc_sli_read_link_ste(phba);
 513
 514         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 515         if (phba->cfg_hba_queue_depth > mb->un.varRdConfig.max_xri) {
 516                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 517                                 "3359 HBA queue depth changed from %d to %d\n",
 518                                 phba->cfg_hba_queue_depth,
 519                                 mb->un.varRdConfig.max_xri);
 520                 phba->cfg_hba_queue_depth = mb->un.varRdConfig.max_xri;
 521         }
 522
 523         phba->lmt = mb->un.varRdConfig.lmt;
 524
 525         /* Get the default values for Model Name and Description */
 526         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 527
 528         phba->link_state = LPFC_LINK_DOWN;
 529
 530         /* Only process IOCBs on ELS ring till hba_state is READY */
 531         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 532                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 533         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 534                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 535
 536         /* Post receive buffers for desired rings */
 537         if (phba->sli_rev != 3)
 538                 lpfc_post_rcv_buf(phba);
 539
 540         /*
 541          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 542          */
 543         if (phba->intr_type == MSIX) {
 544                 rc = lpfc_config_msi(phba, pmb);
 545                 if (rc) {
 546                         mempool_free(pmb, phba->mbox_mem_pool);
 547                         return -EIO;
 548                 }
 549                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 550                 if (rc != MBX_SUCCESS) {
 551                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 552                                         "0352 Config MSI mailbox command "
 553                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 554                                         pmb->u.mb.mbxCommand,
 555                                         pmb->u.mb.mbxStatus);
 556                         mempool_free(pmb, phba->mbox_mem_pool);
 557                         return -EIO;
 558                 }
 559         }
 560
 561         spin_lock_irq(&phba->hbalock);
 562         /* Initialize ERATT handling flag */
 563         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 564
 565         /* Enable appropriate host interrupts */
 566         if (lpfc_readl(phba->HCregaddr, &status)) {
 567                 spin_unlock_irq(&phba->hbalock);
 568                 return -EIO;
 569         }
 570         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 571         if (psli->num_rings > 0)
 572                 status |= HC_R0INT_ENA;
 573         if (psli->num_rings > 1)
 574                 status |= HC_R1INT_ENA;
 575         if (psli->num_rings > 2)
 576                 status |= HC_R2INT_ENA;
 577         if (psli->num_rings > 3)
 578                 status |= HC_R3INT_ENA;
 579
 580         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 581             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 582                 status &= ~(HC_R0INT_ENA);
 583
 584         writel(status, phba->HCregaddr);
 585         readl(phba->HCregaddr); /* flush */
 586         spin_unlock_irq(&phba->hbalock);
 587
 588         /* Set up ring-0 (ELS) timer */
 589         timeout = phba->fc_ratov * 2;
 590         mod_timer(&vport->els_tmofunc,
 591                   jiffies + msecs_to_jiffies(1000 * timeout));
 592         /* Set up heart beat (HB) timer */
 593         mod_timer(&phba->hb_tmofunc,
 594                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 595         phba->hb_outstanding = 0;
 596         phba->last_completion_time = jiffies;
 597         /* Set up error attention (ERATT) polling timer */
 598         mod_timer(&phba->eratt_poll,
 599                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 600
 601         if (phba->hba_flag & LINK_DISABLED) {
 602                 lpfc_printf_log(phba,
 603                         KERN_ERR, LOG_INIT,
 604                         "2598 Adapter Link is disabled.\n");
 605                 lpfc_down_link(phba, pmb);
 606                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 607                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 608                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 609                         lpfc_printf_log(phba,
 610                         KERN_ERR, LOG_INIT,
 611                         "2599 Adapter failed to issue DOWN_LINK"
 612                         " mbox command rc 0x%x\n", rc);
 613
 614                         mempool_free(pmb, phba->mbox_mem_pool);
 615                         return -EIO;
 616                 }
 617         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 618                 mempool_free(pmb, phba->mbox_mem_pool);
 619                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 620                 if (rc)
 621                         return rc;
 622         }
 623         /* MBOX buffer will be freed in mbox compl */
 624         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 625         if (!pmb) {
 626                 phba->link_state = LPFC_HBA_ERROR;
 627                 return -ENOMEM;
 628         }
 629
 630         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 631         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 632         pmb->vport = phba->pport;
 633         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 634
 635         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 636                 lpfc_printf_log(phba,
 637                                 KERN_ERR,
 638                                 LOG_INIT,
 639                                 "0456 Adapter failed to issue "
 640                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 641                                 rc);
 642                 mempool_free(pmb, phba->mbox_mem_pool);
 643         }
 644
 645         /* Get Option rom version */
 646         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 647         if (!pmb) {
 648                 phba->link_state = LPFC_HBA_ERROR;
 649                 return -ENOMEM;
 650         }
 651
 652         lpfc_dump_wakeup_param(phba, pmb);
 653         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 654         pmb->vport = phba->pport;
 655         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 656
 657         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 658                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 659                                 "to get Option ROM version status x%x\n", rc);
 660                 mempool_free(pmb, phba->mbox_mem_pool);
 661         }
 662
 663         return 0;
 664 }
 665
 666 /**
 667  * lpfc_hba_init_link - Initialize the FC link
 668  * @phba: pointer to lpfc hba data structure.
 669  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 670  *
 671  * This routine will issue the INIT_LINK mailbox command call.
 672  * It is available to other drivers through the lpfc_hba data
 673  * structure for use as a delayed link up mechanism with the
 674  * module parameter lpfc_suppress_link_up.
 675  *
 676  * Return code
 677  *              0 - success
 678  *              Any other value - error
 679  **/
 680 static int
 681 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 682 {
 683         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 684 }
 685
 686 /**
 687  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 688  * @phba: pointer to lpfc hba data structure.
 689  * @fc_topology: desired fc topology.
 690  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 691  *
 692  * This routine will issue the INIT_LINK mailbox command call.
 693  * It is available to other drivers through the lpfc_hba data
 694  * structure for use as a delayed link up mechanism with the
 695  * module parameter lpfc_suppress_link_up.
 696  *
 697  * Return code
 698  *              0 - success
 699  *              Any other value - error
 700  **/
 701 int
 702 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 703                                uint32_t flag)
 704 {
 705         struct lpfc_vport *vport = phba->pport;
 706         LPFC_MBOXQ_t *pmb;
 707         MAILBOX_t *mb;
 708         int rc;
 709
 710         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 711         if (!pmb) {
 712                 phba->link_state = LPFC_HBA_ERROR;
 713                 return -ENOMEM;
 714         }
 715         mb = &pmb->u.mb;
 716         pmb->vport = vport;
 717
 718         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 719             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 720              !(phba->lmt & LMT_1Gb)) ||
 721             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 722              !(phba->lmt & LMT_2Gb)) ||
 723             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 724              !(phba->lmt & LMT_4Gb)) ||
 725             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 726              !(phba->lmt & LMT_8Gb)) ||
 727             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 728              !(phba->lmt & LMT_10Gb)) ||
 729             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 730              !(phba->lmt & LMT_16Gb)) ||
 731             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 732              !(phba->lmt & LMT_32Gb)) ||
 733             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 734              !(phba->lmt & LMT_64Gb))) {
 735                 /* Reset link speed to auto */
 736                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 737                         "1302 Invalid speed for this board:%d "
 738                         "Reset link speed to auto.\n",
 739                         phba->cfg_link_speed);
 740                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 741         }
 742         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 743         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 744         if (phba->sli_rev < LPFC_SLI_REV4)
 745                 lpfc_set_loopback_flag(phba);
 746         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 747         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 748                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 749                         "0498 Adapter failed to init, mbxCmd x%x "
 750                         "INIT_LINK, mbxStatus x%x\n",
 751                         mb->mbxCommand, mb->mbxStatus);
 752                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 753                         /* Clear all interrupt enable conditions */
 754                         writel(0, phba->HCregaddr);
 755                         readl(phba->HCregaddr); /* flush */
 756                         /* Clear all pending interrupts */
 757                         writel(0xffffffff, phba->HAregaddr);
 758                         readl(phba->HAregaddr); /* flush */
 759                 }
 760                 phba->link_state = LPFC_HBA_ERROR;
 761                 if (rc != MBX_BUSY || flag == MBX_POLL)
 762                         mempool_free(pmb, phba->mbox_mem_pool);
 763                 return -EIO;
 764         }
 765         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 766         if (flag == MBX_POLL)
 767                 mempool_free(pmb, phba->mbox_mem_pool);
 768
 769         return 0;
 770 }
 771
 772 /**
 773  * lpfc_hba_down_link - this routine downs the FC link
 774  * @phba: pointer to lpfc hba data structure.
 775  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 776  *
 777  * This routine will issue the DOWN_LINK mailbox command call.
 778  * It is available to other drivers through the lpfc_hba data
 779  * structure for use to stop the link.
 780  *
 781  * Return code
 782  *              0 - success
 783  *              Any other value - error
 784  **/
 785 static int
 786 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 787 {
 788         LPFC_MBOXQ_t *pmb;
 789         int rc;
 790
 791         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 792         if (!pmb) {
 793                 phba->link_state = LPFC_HBA_ERROR;
 794                 return -ENOMEM;
 795         }
 796
 797         lpfc_printf_log(phba,
 798                 KERN_ERR, LOG_INIT,
 799                 "0491 Adapter Link is disabled.\n");
 800         lpfc_down_link(phba, pmb);
 801         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 802         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 803         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 804                 lpfc_printf_log(phba,
 805                 KERN_ERR, LOG_INIT,
 806                 "2522 Adapter failed to issue DOWN_LINK"
 807                 " mbox command rc 0x%x\n", rc);
 808
 809                 mempool_free(pmb, phba->mbox_mem_pool);
 810                 return -EIO;
 811         }
 812         if (flag == MBX_POLL)
 813                 mempool_free(pmb, phba->mbox_mem_pool);
 814
 815         return 0;
 816 }
 817
 818 /**
 819  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 820  * @phba: pointer to lpfc HBA data structure.
 821  *
 822  * This routine will do LPFC uninitialization before the HBA is reset when
 823  * bringing down the SLI Layer.
 824  *
 825  * Return codes
 826  *   0 - success.
 827  *   Any other value - error.
 828  **/
 829 int
 830 lpfc_hba_down_prep(struct lpfc_hba *phba)
 831 {
 832         struct lpfc_vport **vports;
 833         int i;
 834
 835         if (phba->sli_rev <= LPFC_SLI_REV3) {
 836                 /* Disable interrupts */
 837                 writel(0, phba->HCregaddr);
 838                 readl(phba->HCregaddr); /* flush */
 839         }
 840
 841         if (phba->pport->load_flag & FC_UNLOADING)
 842                 lpfc_cleanup_discovery_resources(phba->pport);
 843         else {
 844                 vports = lpfc_create_vport_work_array(phba);
 845                 if (vports != NULL)
 846                         for (i = 0; i <= phba->max_vports &&
 847                                 vports[i] != NULL; i++)
 848                                 lpfc_cleanup_discovery_resources(vports[i]);
 849                 lpfc_destroy_vport_work_array(phba, vports);
 850         }
 851         return 0;
 852 }
 853
 854 /**
 855  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 856  * rspiocb which got deferred
 857  *
 858  * @phba: pointer to lpfc HBA data structure.
 859  *
 860  * This routine will cleanup completed slow path events after HBA is reset
 861  * when bringing down the SLI Layer.
 862  *
 863  *
 864  * Return codes
 865  *   void.
 866  **/
 867 static void
 868 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 869 {
 870         struct lpfc_iocbq *rspiocbq;
 871         struct hbq_dmabuf *dmabuf;
 872         struct lpfc_cq_event *cq_event;
 873
 874         spin_lock_irq(&phba->hbalock);
 875         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 876         spin_unlock_irq(&phba->hbalock);
 877
 878         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 879                 /* Get the response iocb from the head of work queue */
 880                 spin_lock_irq(&phba->hbalock);
 881                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 882                                  cq_event, struct lpfc_cq_event, list);
 883                 spin_unlock_irq(&phba->hbalock);
 884
 885                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 886                 case CQE_CODE_COMPL_WQE:
 887                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 888                                                  cq_event);
 889                         lpfc_sli_release_iocbq(phba, rspiocbq);
 890                         break;
 891                 case CQE_CODE_RECEIVE:
 892                 case CQE_CODE_RECEIVE_V1:
 893                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 894                                               cq_event);
 895                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 896                 }
 897         }
 898 }
 899
 900 /**
 901  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 902  * @phba: pointer to lpfc HBA data structure.
 903  *
 904  * This routine will cleanup posted ELS buffers after the HBA is reset
 905  * when bringing down the SLI Layer.
 906  *
 907  *
 908  * Return codes
 909  *   void.
 910  **/
 911 static void
 912 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 913 {
 914         struct lpfc_sli *psli = &phba->sli;
 915         struct lpfc_sli_ring *pring;
 916         struct lpfc_dmabuf *mp, *next_mp;
 917         LIST_HEAD(buflist);
 918         int count;
 919
 920         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 921                 lpfc_sli_hbqbuf_free_all(phba);
 922         else {
 923                 /* Cleanup preposted buffers on the ELS ring */
 924                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 925                 spin_lock_irq(&phba->hbalock);
 926                 list_splice_init(&pring->postbufq, &buflist);
 927                 spin_unlock_irq(&phba->hbalock);
 928
 929                 count = 0;
 930                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 931                         list_del(&mp->list);
 932                         count++;
 933                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 934                         kfree(mp);
 935                 }
 936
 937                 spin_lock_irq(&phba->hbalock);
 938                 pring->postbufq_cnt -= count;
 939                 spin_unlock_irq(&phba->hbalock);
 940         }
 941 }
 942
 943 /**
 944  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 945  * @phba: pointer to lpfc HBA data structure.
 946  *
 947  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 948  * down the SLI Layer.
 949  *
 950  * Return codes
 951  *   void
 952  **/
 953 static void
 954 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 955 {
 956         struct lpfc_sli *psli = &phba->sli;
 957         struct lpfc_queue *qp = NULL;
 958         struct lpfc_sli_ring *pring;
 959         LIST_HEAD(completions);
 960         int i;
 961         struct lpfc_iocbq *piocb, *next_iocb;
 962
 963         if (phba->sli_rev != LPFC_SLI_REV4) {
 964                 for (i = 0; i < psli->num_rings; i++) {
 965                         pring = &psli->sli3_ring[i];
 966                         spin_lock_irq(&phba->hbalock);
 967                         /* At this point in time the HBA is either reset or DOA
 968                          * Nothing should be on txcmplq as it will
 969                          * NEVER complete.
 970                          */
 971                         list_splice_init(&pring->txcmplq, &completions);
 972                         pring->txcmplq_cnt = 0;
 973                         spin_unlock_irq(&phba->hbalock);
 974
 975                         lpfc_sli_abort_iocb_ring(phba, pring);
 976                 }
 977                 /* Cancel all the IOCBs from the completions list */
 978                 lpfc_sli_cancel_iocbs(phba, &completions,
 979                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 980                 return;
 981         }
 982         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 983                 pring = qp->pring;
 984                 if (!pring)
 985                         continue;
 986                 spin_lock_irq(&pring->ring_lock);
 987                 list_for_each_entry_safe(piocb, next_iocb,
 988                                          &pring->txcmplq, list)
 989                         piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
 990                 list_splice_init(&pring->txcmplq, &completions);
 991                 pring->txcmplq_cnt = 0;
 992                 spin_unlock_irq(&pring->ring_lock);
 993                 lpfc_sli_abort_iocb_ring(phba, pring);
 994         }
 995         /* Cancel all the IOCBs from the completions list */
 996         lpfc_sli_cancel_iocbs(phba, &completions,
 997                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 998 }
 999
1000 /**
1001  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
1002         int i;
1003  * @phba: pointer to lpfc HBA data structure.
1004  *
1005  * This routine will do uninitialization after the HBA is reset when bring
1006  * down the SLI Layer.
1007  *
1008  * Return codes
1009  *   0 - success.
1010  *   Any other value - error.
1011  **/
1012 static int
1013 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1014 {
1015         lpfc_hba_free_post_buf(phba);
1016         lpfc_hba_clean_txcmplq(phba);
1017         return 0;
1018 }
1019
1020 /**
1021  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1022  * @phba: pointer to lpfc HBA data structure.
1023  *
1024  * This routine will do uninitialization after the HBA is reset when bring
1025  * down the SLI Layer.
1026  *
1027  * Return codes
1028  *   0 - success.
1029  *   Any other value - error.
1030  **/
1031 static int
1032 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1033 {
1034         struct lpfc_io_buf *psb, *psb_next;
1035         struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next;
1036         struct lpfc_sli4_hdw_queue *qp;
1037         LIST_HEAD(aborts);
1038         LIST_HEAD(nvme_aborts);
1039         LIST_HEAD(nvmet_aborts);
1040         struct lpfc_sglq *sglq_entry = NULL;
1041         int cnt, idx;
1042
1043
1044         lpfc_sli_hbqbuf_free_all(phba);
1045         lpfc_hba_clean_txcmplq(phba);
1046
1047         /* At this point in time the HBA is either reset or DOA. Either
1048          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1049          * on the lpfc_els_sgl_list so that it can either be freed if the
1050          * driver is unloading or reposted if the driver is restarting
1051          * the port.
1052          */
1053         spin_lock_irq(&phba->hbalock);  /* required for lpfc_els_sgl_list and */
1054                                         /* scsl_buf_list */
1055         /* sgl_list_lock required because worker thread uses this
1056          * list.
1057          */
1058         spin_lock(&phba->sli4_hba.sgl_list_lock);
1059         list_for_each_entry(sglq_entry,
1060                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1061                 sglq_entry->state = SGL_FREED;
1062
1063         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1064                         &phba->sli4_hba.lpfc_els_sgl_list);
1065
1066
1067         spin_unlock(&phba->sli4_hba.sgl_list_lock);
1068
1069         /* abts_xxxx_buf_list_lock required because worker thread uses this
1070          * list.
1071          */
1072         cnt = 0;
1073         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1074                 qp = &phba->sli4_hba.hdwq[idx];
1075
1076                 spin_lock(&qp->abts_io_buf_list_lock);
1077                 list_splice_init(&qp->lpfc_abts_io_buf_list,
1078                                  &aborts);
1079
1080                 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1081                         psb->pCmd = NULL;
1082                         psb->status = IOSTAT_SUCCESS;
1083                         cnt++;
1084                 }
1085                 spin_lock(&qp->io_buf_list_put_lock);
1086                 list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
1087                 qp->put_io_bufs += qp->abts_scsi_io_bufs;
1088                 qp->put_io_bufs += qp->abts_nvme_io_bufs;
1089                 qp->abts_scsi_io_bufs = 0;
1090                 qp->abts_nvme_io_bufs = 0;
1091                 spin_unlock(&qp->io_buf_list_put_lock);
1092                 spin_unlock(&qp->abts_io_buf_list_lock);
1093         }
1094         spin_unlock_irq(&phba->hbalock);
1095
1096         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1097                 spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1098                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1099                                  &nvmet_aborts);
1100                 spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1101                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1102                         ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP);
1103                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1104                 }
1105         }
1106
1107         lpfc_sli4_free_sp_events(phba);
1108         return cnt;
1109 }
1110
1111 /**
1112  * lpfc_hba_down_post - Wrapper func for hba down post routine
1113  * @phba: pointer to lpfc HBA data structure.
1114  *
1115  * This routine wraps the actual SLI3 or SLI4 routine for performing
1116  * uninitialization after the HBA is reset when bring down the SLI Layer.
1117  *
1118  * Return codes
1119  *   0 - success.
1120  *   Any other value - error.
1121  **/
1122 int
1123 lpfc_hba_down_post(struct lpfc_hba *phba)
1124 {
1125         return (*phba->lpfc_hba_down_post)(phba);
1126 }
1127
1128 /**
1129  * lpfc_hb_timeout - The HBA-timer timeout handler
1130  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1131  *
1132  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1133  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1134  * work-port-events bitmap and the worker thread is notified. This timeout
1135  * event will be used by the worker thread to invoke the actual timeout
1136  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1137  * be performed in the timeout handler and the HBA timeout event bit shall
1138  * be cleared by the worker thread after it has taken the event bitmap out.
1139  **/
1140 static void
1141 lpfc_hb_timeout(struct timer_list *t)
1142 {
1143         struct lpfc_hba *phba;
1144         uint32_t tmo_posted;
1145         unsigned long iflag;
1146
1147         phba = from_timer(phba, t, hb_tmofunc);
1148
1149         /* Check for heart beat timeout conditions */
1150         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1151         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1152         if (!tmo_posted)
1153                 phba->pport->work_port_events |= WORKER_HB_TMO;
1154         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1155
1156         /* Tell the worker thread there is work to do */
1157         if (!tmo_posted)
1158                 lpfc_worker_wake_up(phba);
1159         return;
1160 }
1161
1162 /**
1163  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1164  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1165  *
1166  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1167  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1168  * work-port-events bitmap and the worker thread is notified. This timeout
1169  * event will be used by the worker thread to invoke the actual timeout
1170  * handler routine, lpfc_rrq_handler. Any periodical operations will
1171  * be performed in the timeout handler and the RRQ timeout event bit shall
1172  * be cleared by the worker thread after it has taken the event bitmap out.
1173  **/
1174 static void
1175 lpfc_rrq_timeout(struct timer_list *t)
1176 {
1177         struct lpfc_hba *phba;
1178         unsigned long iflag;
1179
1180         phba = from_timer(phba, t, rrq_tmr);
1181         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1182         if (!(phba->pport->load_flag & FC_UNLOADING))
1183                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1184         else
1185                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1186         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1187
1188         if (!(phba->pport->load_flag & FC_UNLOADING))
1189                 lpfc_worker_wake_up(phba);
1190 }
1191
1192 /**
1193  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1194  * @phba: pointer to lpfc hba data structure.
1195  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1196  *
1197  * This is the callback function to the lpfc heart-beat mailbox command.
1198  * If configured, the lpfc driver issues the heart-beat mailbox command to
1199  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1200  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1201  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1202  * heart-beat outstanding state. Once the mailbox command comes back and
1203  * no error conditions detected, the heart-beat mailbox command timer is
1204  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1205  * state is cleared for the next heart-beat. If the timer expired with the
1206  * heart-beat outstanding state set, the driver will put the HBA offline.
1207  **/
1208 static void
1209 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1210 {
1211         unsigned long drvr_flag;
1212
1213         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1214         phba->hb_outstanding = 0;
1215         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1216
1217         /* Check and reset heart-beat timer is necessary */
1218         mempool_free(pmboxq, phba->mbox_mem_pool);
1219         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1220                 !(phba->link_state == LPFC_HBA_ERROR) &&
1221                 !(phba->pport->load_flag & FC_UNLOADING))
1222                 mod_timer(&phba->hb_tmofunc,
1223                           jiffies +
1224                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1225         return;
1226 }
1227
1228 static void
1229 lpfc_hb_eq_delay_work(struct work_struct *work)
1230 {
1231         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1232                                              struct lpfc_hba, eq_delay_work);
1233         struct lpfc_eq_intr_info *eqi, *eqi_new;
1234         struct lpfc_queue *eq, *eq_next;
1235         unsigned char *ena_delay = NULL;
1236         uint32_t usdelay;
1237         int i;
1238
1239         if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
1240                 return;
1241
1242         if (phba->link_state == LPFC_HBA_ERROR ||
1243             phba->pport->fc_flag & FC_OFFLINE_MODE)
1244                 goto requeue;
1245
1246         ena_delay = kcalloc(phba->sli4_hba.num_possible_cpu, sizeof(*ena_delay),
1247                             GFP_KERNEL);
1248         if (!ena_delay)
1249                 goto requeue;
1250
1251         for (i = 0; i < phba->cfg_irq_chann; i++) {
1252                 /* Get the EQ corresponding to the IRQ vector */
1253                 eq = phba->sli4_hba.hba_eq_hdl[i].eq;
1254                 if (!eq)
1255                         continue;
1256                 if (eq->q_mode || eq->q_flag & HBA_EQ_DELAY_CHK) {
1257                         eq->q_flag &= ~HBA_EQ_DELAY_CHK;
1258                         ena_delay[eq->last_cpu] = 1;
1259                 }
1260         }
1261
1262         for_each_present_cpu(i) {
1263                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1264                 if (ena_delay[i]) {
1265                         usdelay = (eqi->icnt >> 10) * LPFC_EQ_DELAY_STEP;
1266                         if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1267                                 usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1268                 } else {
1269                         usdelay = 0;
1270                 }
1271
1272                 eqi->icnt = 0;
1273
1274                 list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1275                         if (unlikely(eq->last_cpu != i)) {
1276                                 eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1277                                                       eq->last_cpu);
1278                                 list_move_tail(&eq->cpu_list, &eqi_new->list);
1279                                 continue;
1280                         }
1281                         if (usdelay != eq->q_mode)
1282                                 lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
1283                                                          usdelay);
1284                 }
1285         }
1286
1287         kfree(ena_delay);
1288
1289 requeue:
1290         queue_delayed_work(phba->wq, &phba->eq_delay_work,
1291                            msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1292 }
1293
1294 /**
1295  * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1296  * @phba: pointer to lpfc hba data structure.
1297  *
1298  * For each heartbeat, this routine does some heuristic methods to adjust
1299  * XRI distribution. The goal is to fully utilize free XRIs.
1300  **/
1301 static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1302 {
1303         u32 i;
1304         u32 hwq_count;
1305
1306         hwq_count = phba->cfg_hdw_queue;
1307         for (i = 0; i < hwq_count; i++) {
1308                 /* Adjust XRIs in private pool */
1309                 lpfc_adjust_pvt_pool_count(phba, i);
1310
1311                 /* Adjust high watermark */
1312                 lpfc_adjust_high_watermark(phba, i);
1313
1314 #ifdef LPFC_MXP_STAT
1315                 /* Snapshot pbl, pvt and busy count */
1316                 lpfc_snapshot_mxp(phba, i);
1317 #endif
1318         }
1319 }
1320
1321 /**
1322  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1323  * @phba: pointer to lpfc hba data structure.
1324  *
1325  * This is the actual HBA-timer timeout handler to be invoked by the worker
1326  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1327  * handler performs any periodic operations needed for the device. If such
1328  * periodic event has already been attended to either in the interrupt handler
1329  * or by processing slow-ring or fast-ring events within the HBA-timer
1330  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1331  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1332  * is configured and there is no heart-beat mailbox command outstanding, a
1333  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1334  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1335  * to offline.
1336  **/
1337 void
1338 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1339 {
1340         struct lpfc_vport **vports;
1341         LPFC_MBOXQ_t *pmboxq;
1342         struct lpfc_dmabuf *buf_ptr;
1343         int retval, i;
1344         struct lpfc_sli *psli = &phba->sli;
1345         LIST_HEAD(completions);
1346
1347         if (phba->cfg_xri_rebalancing) {
1348                 /* Multi-XRI pools handler */
1349                 lpfc_hb_mxp_handler(phba);
1350         }
1351
1352         vports = lpfc_create_vport_work_array(phba);
1353         if (vports != NULL)
1354                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1355                         lpfc_rcv_seq_check_edtov(vports[i]);
1356                         lpfc_fdmi_change_check(vports[i]);
1357                 }
1358         lpfc_destroy_vport_work_array(phba, vports);
1359
1360         if ((phba->link_state == LPFC_HBA_ERROR) ||
1361                 (phba->pport->load_flag & FC_UNLOADING) ||
1362                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1363                 return;
1364
1365         spin_lock_irq(&phba->pport->work_port_lock);
1366
1367         if (time_after(phba->last_completion_time +
1368                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1369                         jiffies)) {
1370                 spin_unlock_irq(&phba->pport->work_port_lock);
1371                 if (!phba->hb_outstanding)
1372                         mod_timer(&phba->hb_tmofunc,
1373                                 jiffies +
1374                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1375                 else
1376                         mod_timer(&phba->hb_tmofunc,
1377                                 jiffies +
1378                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1379                 return;
1380         }
1381         spin_unlock_irq(&phba->pport->work_port_lock);
1382
1383         if (phba->elsbuf_cnt &&
1384                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1385                 spin_lock_irq(&phba->hbalock);
1386                 list_splice_init(&phba->elsbuf, &completions);
1387                 phba->elsbuf_cnt = 0;
1388                 phba->elsbuf_prev_cnt = 0;
1389                 spin_unlock_irq(&phba->hbalock);
1390
1391                 while (!list_empty(&completions)) {
1392                         list_remove_head(&completions, buf_ptr,
1393                                 struct lpfc_dmabuf, list);
1394                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1395                         kfree(buf_ptr);
1396                 }
1397         }
1398         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1399
1400         /* If there is no heart beat outstanding, issue a heartbeat command */
1401         if (phba->cfg_enable_hba_heartbeat) {
1402                 if (!phba->hb_outstanding) {
1403                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1404                                 (list_empty(&psli->mboxq))) {
1405                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1406                                                         GFP_KERNEL);
1407                                 if (!pmboxq) {
1408                                         mod_timer(&phba->hb_tmofunc,
1409                                                  jiffies +
1410                                                  msecs_to_jiffies(1000 *
1411                                                  LPFC_HB_MBOX_INTERVAL));
1412                                         return;
1413                                 }
1414
1415                                 lpfc_heart_beat(phba, pmboxq);
1416                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1417                                 pmboxq->vport = phba->pport;
1418                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1419                                                 MBX_NOWAIT);
1420
1421                                 if (retval != MBX_BUSY &&
1422                                         retval != MBX_SUCCESS) {
1423                                         mempool_free(pmboxq,
1424                                                         phba->mbox_mem_pool);
1425                                         mod_timer(&phba->hb_tmofunc,
1426                                                 jiffies +
1427                                                 msecs_to_jiffies(1000 *
1428                                                 LPFC_HB_MBOX_INTERVAL));
1429                                         return;
1430                                 }
1431                                 phba->skipped_hb = 0;
1432                                 phba->hb_outstanding = 1;
1433                         } else if (time_before_eq(phba->last_completion_time,
1434                                         phba->skipped_hb)) {
1435                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1436                                         "2857 Last completion time not "
1437                                         " updated in %d ms\n",
1438                                         jiffies_to_msecs(jiffies
1439                                                  - phba->last_completion_time));
1440                         } else
1441                                 phba->skipped_hb = jiffies;
1442
1443                         mod_timer(&phba->hb_tmofunc,
1444                                  jiffies +
1445                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1446                         return;
1447                 } else {
1448                         /*
1449                         * If heart beat timeout called with hb_outstanding set
1450                         * we need to give the hb mailbox cmd a chance to
1451                         * complete or TMO.
1452                         */
1453                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1454                                         "0459 Adapter heartbeat still out"
1455                                         "standing:last compl time was %d ms.\n",
1456                                         jiffies_to_msecs(jiffies
1457                                                  - phba->last_completion_time));
1458                         mod_timer(&phba->hb_tmofunc,
1459                                 jiffies +
1460                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1461                 }
1462         } else {
1463                         mod_timer(&phba->hb_tmofunc,
1464                                 jiffies +
1465                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1466         }
1467 }
1468
1469 /**
1470  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1471  * @phba: pointer to lpfc hba data structure.
1472  *
1473  * This routine is called to bring the HBA offline when HBA hardware error
1474  * other than Port Error 6 has been detected.
1475  **/
1476 static void
1477 lpfc_offline_eratt(struct lpfc_hba *phba)
1478 {
1479         struct lpfc_sli   *psli = &phba->sli;
1480
1481         spin_lock_irq(&phba->hbalock);
1482         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1483         spin_unlock_irq(&phba->hbalock);
1484         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1485
1486         lpfc_offline(phba);
1487         lpfc_reset_barrier(phba);
1488         spin_lock_irq(&phba->hbalock);
1489         lpfc_sli_brdreset(phba);
1490         spin_unlock_irq(&phba->hbalock);
1491         lpfc_hba_down_post(phba);
1492         lpfc_sli_brdready(phba, HS_MBRDY);
1493         lpfc_unblock_mgmt_io(phba);
1494         phba->link_state = LPFC_HBA_ERROR;
1495         return;
1496 }
1497
1498 /**
1499  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1500  * @phba: pointer to lpfc hba data structure.
1501  *
1502  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1503  * other than Port Error 6 has been detected.
1504  **/
1505 void
1506 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1507 {
1508         spin_lock_irq(&phba->hbalock);
1509         phba->link_state = LPFC_HBA_ERROR;
1510         spin_unlock_irq(&phba->hbalock);
1511
1512         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1513         lpfc_sli_flush_io_rings(phba);
1514         lpfc_offline(phba);
1515         lpfc_hba_down_post(phba);
1516         lpfc_unblock_mgmt_io(phba);
1517 }
1518
1519 /**
1520  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1521  * @phba: pointer to lpfc hba data structure.
1522  *
1523  * This routine is invoked to handle the deferred HBA hardware error
1524  * conditions. This type of error is indicated by HBA by setting ER1
1525  * and another ER bit in the host status register. The driver will
1526  * wait until the ER1 bit clears before handling the error condition.
1527  **/
1528 static void
1529 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1530 {
1531         uint32_t old_host_status = phba->work_hs;
1532         struct lpfc_sli *psli = &phba->sli;
1533
1534         /* If the pci channel is offline, ignore possible errors,
1535          * since we cannot communicate with the pci card anyway.
1536          */
1537         if (pci_channel_offline(phba->pcidev)) {
1538                 spin_lock_irq(&phba->hbalock);
1539                 phba->hba_flag &= ~DEFER_ERATT;
1540                 spin_unlock_irq(&phba->hbalock);
1541                 return;
1542         }
1543
1544         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1545                 "0479 Deferred Adapter Hardware Error "
1546                 "Data: x%x x%x x%x\n",
1547                 phba->work_hs,
1548                 phba->work_status[0], phba->work_status[1]);
1549
1550         spin_lock_irq(&phba->hbalock);
1551         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1552         spin_unlock_irq(&phba->hbalock);
1553
1554
1555         /*
1556          * Firmware stops when it triggred erratt. That could cause the I/Os
1557          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1558          * SCSI layer retry it after re-establishing link.
1559          */
1560         lpfc_sli_abort_fcp_rings(phba);
1561
1562         /*
1563          * There was a firmware error. Take the hba offline and then
1564          * attempt to restart it.
1565          */
1566         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1567         lpfc_offline(phba);
1568
1569         /* Wait for the ER1 bit to clear.*/
1570         while (phba->work_hs & HS_FFER1) {
1571                 msleep(100);
1572                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1573                         phba->work_hs = UNPLUG_ERR ;
1574                         break;
1575                 }
1576                 /* If driver is unloading let the worker thread continue */
1577                 if (phba->pport->load_flag & FC_UNLOADING) {
1578                         phba->work_hs = 0;
1579                         break;
1580                 }
1581         }
1582
1583         /*
1584          * This is to ptrotect against a race condition in which
1585          * first write to the host attention register clear the
1586          * host status register.
1587          */
1588         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1589                 phba->work_hs = old_host_status & ~HS_FFER1;
1590
1591         spin_lock_irq(&phba->hbalock);
1592         phba->hba_flag &= ~DEFER_ERATT;
1593         spin_unlock_irq(&phba->hbalock);
1594         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1595         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1596 }
1597
1598 static void
1599 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1600 {
1601         struct lpfc_board_event_header board_event;
1602         struct Scsi_Host *shost;
1603
1604         board_event.event_type = FC_REG_BOARD_EVENT;
1605         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1606         shost = lpfc_shost_from_vport(phba->pport);
1607         fc_host_post_vendor_event(shost, fc_get_event_number(),
1608                                   sizeof(board_event),
1609                                   (char *) &board_event,
1610                                   LPFC_NL_VENDOR_ID);
1611 }
1612
1613 /**
1614  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1615  * @phba: pointer to lpfc hba data structure.
1616  *
1617  * This routine is invoked to handle the following HBA hardware error
1618  * conditions:
1619  * 1 - HBA error attention interrupt
1620  * 2 - DMA ring index out of range
1621  * 3 - Mailbox command came back as unknown
1622  **/
1623 static void
1624 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1625 {
1626         struct lpfc_vport *vport = phba->pport;
1627         struct lpfc_sli   *psli = &phba->sli;
1628         uint32_t event_data;
1629         unsigned long temperature;
1630         struct temp_event temp_event_data;
1631         struct Scsi_Host  *shost;
1632
1633         /* If the pci channel is offline, ignore possible errors,
1634          * since we cannot communicate with the pci card anyway.
1635          */
1636         if (pci_channel_offline(phba->pcidev)) {
1637                 spin_lock_irq(&phba->hbalock);
1638                 phba->hba_flag &= ~DEFER_ERATT;
1639                 spin_unlock_irq(&phba->hbalock);
1640                 return;
1641         }
1642
1643         /* If resets are disabled then leave the HBA alone and return */
1644         if (!phba->cfg_enable_hba_reset)
1645                 return;
1646
1647         /* Send an internal error event to mgmt application */
1648         lpfc_board_errevt_to_mgmt(phba);
1649
1650         if (phba->hba_flag & DEFER_ERATT)
1651                 lpfc_handle_deferred_eratt(phba);
1652
1653         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1654                 if (phba->work_hs & HS_FFER6)
1655                         /* Re-establishing Link */
1656                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1657                                         "1301 Re-establishing Link "
1658                                         "Data: x%x x%x x%x\n",
1659                                         phba->work_hs, phba->work_status[0],
1660                                         phba->work_status[1]);
1661                 if (phba->work_hs & HS_FFER8)
1662                         /* Device Zeroization */
1663                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1664                                         "2861 Host Authentication device "
1665                                         "zeroization Data:x%x x%x x%x\n",
1666                                         phba->work_hs, phba->work_status[0],
1667                                         phba->work_status[1]);
1668
1669                 spin_lock_irq(&phba->hbalock);
1670                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1671                 spin_unlock_irq(&phba->hbalock);
1672
1673                 /*
1674                 * Firmware stops when it triggled erratt with HS_FFER6.
1675                 * That could cause the I/Os dropped by the firmware.
1676                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1677                 * retry it after re-establishing link.
1678                 */
1679                 lpfc_sli_abort_fcp_rings(phba);
1680
1681                 /*
1682                  * There was a firmware error.  Take the hba offline and then
1683                  * attempt to restart it.
1684                  */
1685                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1686                 lpfc_offline(phba);
1687                 lpfc_sli_brdrestart(phba);
1688                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1689                         lpfc_unblock_mgmt_io(phba);
1690                         return;
1691                 }
1692                 lpfc_unblock_mgmt_io(phba);
1693         } else if (phba->work_hs & HS_CRIT_TEMP) {
1694                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1695                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1696                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1697                 temp_event_data.data = (uint32_t)temperature;
1698
1699                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1700                                 "0406 Adapter maximum temperature exceeded "
1701                                 "(%ld), taking this port offline "
1702                                 "Data: x%x x%x x%x\n",
1703                                 temperature, phba->work_hs,
1704                                 phba->work_status[0], phba->work_status[1]);
1705
1706                 shost = lpfc_shost_from_vport(phba->pport);
1707                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1708                                           sizeof(temp_event_data),
1709                                           (char *) &temp_event_data,
1710                                           SCSI_NL_VID_TYPE_PCI
1711                                           | PCI_VENDOR_ID_EMULEX);
1712
1713                 spin_lock_irq(&phba->hbalock);
1714                 phba->over_temp_state = HBA_OVER_TEMP;
1715                 spin_unlock_irq(&phba->hbalock);
1716                 lpfc_offline_eratt(phba);
1717
1718         } else {
1719                 /* The if clause above forces this code path when the status
1720                  * failure is a value other than FFER6. Do not call the offline
1721                  * twice. This is the adapter hardware error path.
1722                  */
1723                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1724                                 "0457 Adapter Hardware Error "
1725                                 "Data: x%x x%x x%x\n",
1726                                 phba->work_hs,
1727                                 phba->work_status[0], phba->work_status[1]);
1728
1729                 event_data = FC_REG_DUMP_EVENT;
1730                 shost = lpfc_shost_from_vport(vport);
1731                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1732                                 sizeof(event_data), (char *) &event_data,
1733                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1734
1735                 lpfc_offline_eratt(phba);
1736         }
1737         return;
1738 }
1739
1740 /**
1741  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1742  * @phba: pointer to lpfc hba data structure.
1743  * @mbx_action: flag for mailbox shutdown action.
1744  *
1745  * This routine is invoked to perform an SLI4 port PCI function reset in
1746  * response to port status register polling attention. It waits for port
1747  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1748  * During this process, interrupt vectors are freed and later requested
1749  * for handling possible port resource change.
1750  **/
1751 static int
1752 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1753                             bool en_rn_msg)
1754 {
1755         int rc;
1756         uint32_t intr_mode;
1757
1758         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1759             LPFC_SLI_INTF_IF_TYPE_2) {
1760                 /*
1761                  * On error status condition, driver need to wait for port
1762                  * ready before performing reset.
1763                  */
1764                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1765                 if (rc)
1766                         return rc;
1767         }
1768
1769         /* need reset: attempt for port recovery */
1770         if (en_rn_msg)
1771                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1772                                 "2887 Reset Needed: Attempting Port "
1773                                 "Recovery...\n");
1774         lpfc_offline_prep(phba, mbx_action);
1775         lpfc_sli_flush_io_rings(phba);
1776         lpfc_offline(phba);
1777         /* release interrupt for possible resource change */
1778         lpfc_sli4_disable_intr(phba);
1779         rc = lpfc_sli_brdrestart(phba);
1780         if (rc) {
1781                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1782                                 "6309 Failed to restart board\n");
1783                 return rc;
1784         }
1785         /* request and enable interrupt */
1786         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1787         if (intr_mode == LPFC_INTR_ERROR) {
1788                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1789                                 "3175 Failed to enable interrupt\n");
1790                 return -EIO;
1791         }
1792         phba->intr_mode = intr_mode;
1793         rc = lpfc_online(phba);
1794         if (rc == 0)
1795                 lpfc_unblock_mgmt_io(phba);
1796
1797         return rc;
1798 }
1799
1800 /**
1801  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1802  * @phba: pointer to lpfc hba data structure.
1803  *
1804  * This routine is invoked to handle the SLI4 HBA hardware error attention
1805  * conditions.
1806  **/
1807 static void
1808 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1809 {
1810         struct lpfc_vport *vport = phba->pport;
1811         uint32_t event_data;
1812         struct Scsi_Host *shost;
1813         uint32_t if_type;
1814         struct lpfc_register portstat_reg = {0};
1815         uint32_t reg_err1, reg_err2;
1816         uint32_t uerrlo_reg, uemasklo_reg;
1817         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1818         bool en_rn_msg = true;
1819         struct temp_event temp_event_data;
1820         struct lpfc_register portsmphr_reg;
1821         int rc, i;
1822
1823         /* If the pci channel is offline, ignore possible errors, since
1824          * we cannot communicate with the pci card anyway.
1825          */
1826         if (pci_channel_offline(phba->pcidev)) {
1827                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1828                                 "3166 pci channel is offline\n");
1829                 lpfc_sli4_offline_eratt(phba);
1830                 return;
1831         }
1832
1833         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1834         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1835         switch (if_type) {
1836         case LPFC_SLI_INTF_IF_TYPE_0:
1837                 pci_rd_rc1 = lpfc_readl(
1838                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1839                                 &uerrlo_reg);
1840                 pci_rd_rc2 = lpfc_readl(
1841                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1842                                 &uemasklo_reg);
1843                 /* consider PCI bus read error as pci_channel_offline */
1844                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1845                         return;
1846                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1847                         lpfc_sli4_offline_eratt(phba);
1848                         return;
1849                 }
1850                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1851                                 "7623 Checking UE recoverable");
1852
1853                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1854                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1855                                        &portsmphr_reg.word0))
1856                                 continue;
1857
1858                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1859                                                    &portsmphr_reg);
1860                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1861                             LPFC_PORT_SEM_UE_RECOVERABLE)
1862                                 break;
1863                         /*Sleep for 1Sec, before checking SEMAPHORE */
1864                         msleep(1000);
1865                 }
1866
1867                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1868                                 "4827 smphr_port_status x%x : Waited %dSec",
1869                                 smphr_port_status, i);
1870
1871                 /* Recoverable UE, reset the HBA device */
1872                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1873                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1874                         for (i = 0; i < 20; i++) {
1875                                 msleep(1000);
1876                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1877                                     &portsmphr_reg.word0) &&
1878                                     (LPFC_POST_STAGE_PORT_READY ==
1879                                      bf_get(lpfc_port_smphr_port_status,
1880                                      &portsmphr_reg))) {
1881                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
1882                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
1883                                         if (rc == 0)
1884                                                 return;
1885                                         lpfc_printf_log(phba,
1886                                                 KERN_ERR, LOG_INIT,
1887                                                 "4215 Failed to recover UE");
1888                                         break;
1889                                 }
1890                         }
1891                 }
1892                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1893                                 "7624 Firmware not ready: Failing UE recovery,"
1894                                 " waited %dSec", i);
1895                 phba->link_state = LPFC_HBA_ERROR;
1896                 break;
1897
1898         case LPFC_SLI_INTF_IF_TYPE_2:
1899         case LPFC_SLI_INTF_IF_TYPE_6:
1900                 pci_rd_rc1 = lpfc_readl(
1901                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1902                                 &portstat_reg.word0);
1903                 /* consider PCI bus read error as pci_channel_offline */
1904                 if (pci_rd_rc1 == -EIO) {
1905                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1906                                 "3151 PCI bus read access failure: x%x\n",
1907                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1908                         lpfc_sli4_offline_eratt(phba);
1909                         return;
1910                 }
1911                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1912                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1913                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1914                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1915                                 "2889 Port Overtemperature event, "
1916                                 "taking port offline Data: x%x x%x\n",
1917                                 reg_err1, reg_err2);
1918
1919                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1920                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1921                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1922                         temp_event_data.data = 0xFFFFFFFF;
1923
1924                         shost = lpfc_shost_from_vport(phba->pport);
1925                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1926                                                   sizeof(temp_event_data),
1927                                                   (char *)&temp_event_data,
1928                                                   SCSI_NL_VID_TYPE_PCI
1929                                                   | PCI_VENDOR_ID_EMULEX);
1930
1931                         spin_lock_irq(&phba->hbalock);
1932                         phba->over_temp_state = HBA_OVER_TEMP;
1933                         spin_unlock_irq(&phba->hbalock);
1934                         lpfc_sli4_offline_eratt(phba);
1935                         return;
1936                 }
1937                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1938                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1939                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1940                                         "3143 Port Down: Firmware Update "
1941                                         "Detected\n");
1942                         en_rn_msg = false;
1943                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1944                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1945                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1946                                         "3144 Port Down: Debug Dump\n");
1947                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1948                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1949                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1950                                         "3145 Port Down: Provisioning\n");
1951
1952                 /* If resets are disabled then leave the HBA alone and return */
1953                 if (!phba->cfg_enable_hba_reset)
1954                         return;
1955
1956                 /* Check port status register for function reset */
1957                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1958                                 en_rn_msg);
1959                 if (rc == 0) {
1960                         /* don't report event on forced debug dump */
1961                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1962                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1963                                 return;
1964                         else
1965                                 break;
1966                 }
1967                 /* fall through for not able to recover */
1968                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1969                                 "3152 Unrecoverable error\n");
1970                 phba->link_state = LPFC_HBA_ERROR;
1971                 break;
1972         case LPFC_SLI_INTF_IF_TYPE_1:
1973         default:
1974                 break;
1975         }
1976         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1977                         "3123 Report dump event to upper layer\n");
1978         /* Send an internal error event to mgmt application */
1979         lpfc_board_errevt_to_mgmt(phba);
1980
1981         event_data = FC_REG_DUMP_EVENT;
1982         shost = lpfc_shost_from_vport(vport);
1983         fc_host_post_vendor_event(shost, fc_get_event_number(),
1984                                   sizeof(event_data), (char *) &event_data,
1985                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1986 }
1987
1988 /**
1989  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1990  * @phba: pointer to lpfc HBA data structure.
1991  *
1992  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1993  * routine from the API jump table function pointer from the lpfc_hba struct.
1994  *
1995  * Return codes
1996  *   0 - success.
1997  *   Any other value - error.
1998  **/
1999 void
2000 lpfc_handle_eratt(struct lpfc_hba *phba)
2001 {
2002         (*phba->lpfc_handle_eratt)(phba);
2003 }
2004
2005 /**
2006  * lpfc_handle_latt - The HBA link event handler
2007  * @phba: pointer to lpfc hba data structure.
2008  *
2009  * This routine is invoked from the worker thread to handle a HBA host
2010  * attention link event. SLI3 only.
2011  **/
2012 void
2013 lpfc_handle_latt(struct lpfc_hba *phba)
2014 {
2015         struct lpfc_vport *vport = phba->pport;
2016         struct lpfc_sli   *psli = &phba->sli;
2017         LPFC_MBOXQ_t *pmb;
2018         volatile uint32_t control;
2019         struct lpfc_dmabuf *mp;
2020         int rc = 0;
2021
2022         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2023         if (!pmb) {
2024                 rc = 1;
2025                 goto lpfc_handle_latt_err_exit;
2026         }
2027
2028         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2029         if (!mp) {
2030                 rc = 2;
2031                 goto lpfc_handle_latt_free_pmb;
2032         }
2033
2034         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2035         if (!mp->virt) {
2036                 rc = 3;
2037                 goto lpfc_handle_latt_free_mp;
2038         }
2039
2040         /* Cleanup any outstanding ELS commands */
2041         lpfc_els_flush_all_cmd(phba);
2042
2043         psli->slistat.link_event++;
2044         lpfc_read_topology(phba, pmb, mp);
2045         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2046         pmb->vport = vport;
2047         /* Block ELS IOCBs until we have processed this mbox command */
2048         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2049         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2050         if (rc == MBX_NOT_FINISHED) {
2051                 rc = 4;
2052                 goto lpfc_handle_latt_free_mbuf;
2053         }
2054
2055         /* Clear Link Attention in HA REG */
2056         spin_lock_irq(&phba->hbalock);
2057         writel(HA_LATT, phba->HAregaddr);
2058         readl(phba->HAregaddr); /* flush */
2059         spin_unlock_irq(&phba->hbalock);
2060
2061         return;
2062
2063 lpfc_handle_latt_free_mbuf:
2064         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2065         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2066 lpfc_handle_latt_free_mp:
2067         kfree(mp);
2068 lpfc_handle_latt_free_pmb:
2069         mempool_free(pmb, phba->mbox_mem_pool);
2070 lpfc_handle_latt_err_exit:
2071         /* Enable Link attention interrupts */
2072         spin_lock_irq(&phba->hbalock);
2073         psli->sli_flag |= LPFC_PROCESS_LA;
2074         control = readl(phba->HCregaddr);
2075         control |= HC_LAINT_ENA;
2076         writel(control, phba->HCregaddr);
2077         readl(phba->HCregaddr); /* flush */
2078
2079         /* Clear Link Attention in HA REG */
2080         writel(HA_LATT, phba->HAregaddr);
2081         readl(phba->HAregaddr); /* flush */
2082         spin_unlock_irq(&phba->hbalock);
2083         lpfc_linkdown(phba);
2084         phba->link_state = LPFC_HBA_ERROR;
2085
2086         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2087                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2088
2089         return;
2090 }
2091
2092 /**
2093  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2094  * @phba: pointer to lpfc hba data structure.
2095  * @vpd: pointer to the vital product data.
2096  * @len: length of the vital product data in bytes.
2097  *
2098  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2099  * an array of characters. In this routine, the ModelName, ProgramType, and
2100  * ModelDesc, etc. fields of the phba data structure will be populated.
2101  *
2102  * Return codes
2103  *   0 - pointer to the VPD passed in is NULL
2104  *   1 - success
2105  **/
2106 int
2107 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2108 {
2109         uint8_t lenlo, lenhi;
2110         int Length;
2111         int i, j;
2112         int finished = 0;
2113         int index = 0;
2114
2115         if (!vpd)
2116                 return 0;
2117
2118         /* Vital Product */
2119         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2120                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2121                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2122                         (uint32_t) vpd[3]);
2123         while (!finished && (index < (len - 4))) {
2124                 switch (vpd[index]) {
2125                 case 0x82:
2126                 case 0x91:
2127                         index += 1;
2128                         lenlo = vpd[index];
2129                         index += 1;
2130                         lenhi = vpd[index];
2131                         index += 1;
2132                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2133                         index += i;
2134                         break;
2135                 case 0x90:
2136                         index += 1;
2137                         lenlo = vpd[index];
2138                         index += 1;
2139                         lenhi = vpd[index];
2140                         index += 1;
2141                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2142                         if (Length > len - index)
2143                                 Length = len - index;
2144                         while (Length > 0) {
2145                         /* Look for Serial Number */
2146                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2147                                 index += 2;
2148                                 i = vpd[index];
2149                                 index += 1;
2150                                 j = 0;
2151                                 Length -= (3+i);
2152                                 while(i--) {
2153                                         phba->SerialNumber[j++] = vpd[index++];
2154                                         if (j == 31)
2155                                                 break;
2156                                 }
2157                                 phba->SerialNumber[j] = 0;
2158                                 continue;
2159                         }
2160                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2161                                 phba->vpd_flag |= VPD_MODEL_DESC;
2162                                 index += 2;
2163                                 i = vpd[index];
2164                                 index += 1;
2165                                 j = 0;
2166                                 Length -= (3+i);
2167                                 while(i--) {
2168                                         phba->ModelDesc[j++] = vpd[index++];
2169                                         if (j == 255)
2170                                                 break;
2171                                 }
2172                                 phba->ModelDesc[j] = 0;
2173                                 continue;
2174                         }
2175                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2176                                 phba->vpd_flag |= VPD_MODEL_NAME;
2177                                 index += 2;
2178                                 i = vpd[index];
2179                                 index += 1;
2180                                 j = 0;
2181                                 Length -= (3+i);
2182                                 while(i--) {
2183                                         phba->ModelName[j++] = vpd[index++];
2184                                         if (j == 79)
2185                                                 break;
2186                                 }
2187                                 phba->ModelName[j] = 0;
2188                                 continue;
2189                         }
2190                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2191                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2192                                 index += 2;
2193                                 i = vpd[index];
2194                                 index += 1;
2195                                 j = 0;
2196                                 Length -= (3+i);
2197                                 while(i--) {
2198                                         phba->ProgramType[j++] = vpd[index++];
2199                                         if (j == 255)
2200                                                 break;
2201                                 }
2202                                 phba->ProgramType[j] = 0;
2203                                 continue;
2204                         }
2205                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2206                                 phba->vpd_flag |= VPD_PORT;
2207                                 index += 2;
2208                                 i = vpd[index];
2209                                 index += 1;
2210                                 j = 0;
2211                                 Length -= (3+i);
2212                                 while(i--) {
2213                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2214                                             (phba->sli4_hba.pport_name_sta ==
2215                                              LPFC_SLI4_PPNAME_GET)) {
2216                                                 j++;
2217                                                 index++;
2218                                         } else
2219                                                 phba->Port[j++] = vpd[index++];
2220                                         if (j == 19)
2221                                                 break;
2222                                 }
2223                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2224                                     (phba->sli4_hba.pport_name_sta ==
2225                                      LPFC_SLI4_PPNAME_NON))
2226                                         phba->Port[j] = 0;
2227                                 continue;
2228                         }
2229                         else {
2230                                 index += 2;
2231                                 i = vpd[index];
2232                                 index += 1;
2233                                 index += i;
2234                                 Length -= (3 + i);
2235                         }
2236                 }
2237                 finished = 0;
2238                 break;
2239                 case 0x78:
2240                         finished = 1;
2241                         break;
2242                 default:
2243                         index ++;
2244                         break;
2245                 }
2246         }
2247
2248         return(1);
2249 }
2250
2251 /**
2252  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2253  * @phba: pointer to lpfc hba data structure.
2254  * @mdp: pointer to the data structure to hold the derived model name.
2255  * @descp: pointer to the data structure to hold the derived description.
2256  *
2257  * This routine retrieves HBA's description based on its registered PCI device
2258  * ID. The @descp passed into this function points to an array of 256 chars. It
2259  * shall be returned with the model name, maximum speed, and the host bus type.
2260  * The @mdp passed into this function points to an array of 80 chars. When the
2261  * function returns, the @mdp will be filled with the model name.
2262  **/
2263 static void
2264 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2265 {
2266         lpfc_vpd_t *vp;
2267         uint16_t dev_id = phba->pcidev->device;
2268         int max_speed;
2269         int GE = 0;
2270         int oneConnect = 0; /* default is not a oneConnect */
2271         struct {
2272                 char *name;
2273                 char *bus;
2274                 char *function;
2275         } m = {"<Unknown>", "", ""};
2276
2277         if (mdp && mdp[0] != '\0'
2278                 && descp && descp[0] != '\0')
2279                 return;
2280
2281         if (phba->lmt & LMT_64Gb)
2282                 max_speed = 64;
2283         else if (phba->lmt & LMT_32Gb)
2284                 max_speed = 32;
2285         else if (phba->lmt & LMT_16Gb)
2286                 max_speed = 16;
2287         else if (phba->lmt & LMT_10Gb)
2288                 max_speed = 10;
2289         else if (phba->lmt & LMT_8Gb)
2290                 max_speed = 8;
2291         else if (phba->lmt & LMT_4Gb)
2292                 max_speed = 4;
2293         else if (phba->lmt & LMT_2Gb)
2294                 max_speed = 2;
2295         else if (phba->lmt & LMT_1Gb)
2296                 max_speed = 1;
2297         else
2298                 max_speed = 0;
2299
2300         vp = &phba->vpd;
2301
2302         switch (dev_id) {
2303         case PCI_DEVICE_ID_FIREFLY:
2304                 m = (typeof(m)){"LP6000", "PCI",
2305                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2306                 break;
2307         case PCI_DEVICE_ID_SUPERFLY:
2308                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2309                         m = (typeof(m)){"LP7000", "PCI", ""};
2310                 else
2311                         m = (typeof(m)){"LP7000E", "PCI", ""};
2312                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2313                 break;
2314         case PCI_DEVICE_ID_DRAGONFLY:
2315                 m = (typeof(m)){"LP8000", "PCI",
2316                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2317                 break;
2318         case PCI_DEVICE_ID_CENTAUR:
2319                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2320                         m = (typeof(m)){"LP9002", "PCI", ""};
2321                 else
2322                         m = (typeof(m)){"LP9000", "PCI", ""};
2323                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2324                 break;
2325         case PCI_DEVICE_ID_RFLY:
2326                 m = (typeof(m)){"LP952", "PCI",
2327                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2328                 break;
2329         case PCI_DEVICE_ID_PEGASUS:
2330                 m = (typeof(m)){"LP9802", "PCI-X",
2331                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2332                 break;
2333         case PCI_DEVICE_ID_THOR:
2334                 m = (typeof(m)){"LP10000", "PCI-X",
2335                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2336                 break;
2337         case PCI_DEVICE_ID_VIPER:
2338                 m = (typeof(m)){"LPX1000",  "PCI-X",
2339                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2340                 break;
2341         case PCI_DEVICE_ID_PFLY:
2342                 m = (typeof(m)){"LP982", "PCI-X",
2343                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2344                 break;
2345         case PCI_DEVICE_ID_TFLY:
2346                 m = (typeof(m)){"LP1050", "PCI-X",
2347                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2348                 break;
2349         case PCI_DEVICE_ID_HELIOS:
2350                 m = (typeof(m)){"LP11000", "PCI-X2",
2351                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2352                 break;
2353         case PCI_DEVICE_ID_HELIOS_SCSP:
2354                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2355                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2356                 break;
2357         case PCI_DEVICE_ID_HELIOS_DCSP:
2358                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2359                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2360                 break;
2361         case PCI_DEVICE_ID_NEPTUNE:
2362                 m = (typeof(m)){"LPe1000", "PCIe",
2363                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2364                 break;
2365         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2366                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2367                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2368                 break;
2369         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2370                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2371                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2372                 break;
2373         case PCI_DEVICE_ID_BMID:
2374                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2375                 break;
2376         case PCI_DEVICE_ID_BSMB:
2377                 m = (typeof(m)){"LP111", "PCI-X2",
2378                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2379                 break;
2380         case PCI_DEVICE_ID_ZEPHYR:
2381                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2382                 break;
2383         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2384                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2385                 break;
2386         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2387                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2388                 GE = 1;
2389                 break;
2390         case PCI_DEVICE_ID_ZMID:
2391                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2392                 break;
2393         case PCI_DEVICE_ID_ZSMB:
2394                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2395                 break;
2396         case PCI_DEVICE_ID_LP101:
2397                 m = (typeof(m)){"LP101", "PCI-X",
2398                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2399                 break;
2400         case PCI_DEVICE_ID_LP10000S:
2401                 m = (typeof(m)){"LP10000-S", "PCI",
2402                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2403                 break;
2404         case PCI_DEVICE_ID_LP11000S:
2405                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2406                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2407                 break;
2408         case PCI_DEVICE_ID_LPE11000S:
2409                 m = (typeof(m)){"LPe11000-S", "PCIe",
2410                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2411                 break;
2412         case PCI_DEVICE_ID_SAT:
2413                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2414                 break;
2415         case PCI_DEVICE_ID_SAT_MID:
2416                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2417                 break;
2418         case PCI_DEVICE_ID_SAT_SMB:
2419                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2420                 break;
2421         case PCI_DEVICE_ID_SAT_DCSP:
2422                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2423                 break;
2424         case PCI_DEVICE_ID_SAT_SCSP:
2425                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2426                 break;
2427         case PCI_DEVICE_ID_SAT_S:
2428                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2429                 break;
2430         case PCI_DEVICE_ID_HORNET:
2431                 m = (typeof(m)){"LP21000", "PCIe",
2432                                 "Obsolete, Unsupported FCoE Adapter"};
2433                 GE = 1;
2434                 break;
2435         case PCI_DEVICE_ID_PROTEUS_VF:
2436                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2437                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2438                 break;
2439         case PCI_DEVICE_ID_PROTEUS_PF:
2440                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2441                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2442                 break;
2443         case PCI_DEVICE_ID_PROTEUS_S:
2444                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2445                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2446                 break;
2447         case PCI_DEVICE_ID_TIGERSHARK:
2448                 oneConnect = 1;
2449                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2450                 break;
2451         case PCI_DEVICE_ID_TOMCAT:
2452                 oneConnect = 1;
2453                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2454                 break;
2455         case PCI_DEVICE_ID_FALCON:
2456                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2457                                 "EmulexSecure Fibre"};
2458                 break;
2459         case PCI_DEVICE_ID_BALIUS:
2460                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2461                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2462                 break;
2463         case PCI_DEVICE_ID_LANCER_FC:
2464                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2465                 break;
2466         case PCI_DEVICE_ID_LANCER_FC_VF:
2467                 m = (typeof(m)){"LPe16000", "PCIe",
2468                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2469                 break;
2470         case PCI_DEVICE_ID_LANCER_FCOE:
2471                 oneConnect = 1;
2472                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2473                 break;
2474         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2475                 oneConnect = 1;
2476                 m = (typeof(m)){"OCe15100", "PCIe",
2477                                 "Obsolete, Unsupported FCoE"};
2478                 break;
2479         case PCI_DEVICE_ID_LANCER_G6_FC:
2480                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2481                 break;
2482         case PCI_DEVICE_ID_LANCER_G7_FC:
2483                 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2484                 break;
2485         case PCI_DEVICE_ID_SKYHAWK:
2486         case PCI_DEVICE_ID_SKYHAWK_VF:
2487                 oneConnect = 1;
2488                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2489                 break;
2490         default:
2491                 m = (typeof(m)){"Unknown", "", ""};
2492                 break;
2493         }
2494
2495         if (mdp && mdp[0] == '\0')
2496                 snprintf(mdp, 79,"%s", m.name);
2497         /*
2498          * oneConnect hba requires special processing, they are all initiators
2499          * and we put the port number on the end
2500          */
2501         if (descp && descp[0] == '\0') {
2502                 if (oneConnect)
2503                         snprintf(descp, 255,
2504                                 "Emulex OneConnect %s, %s Initiator %s",
2505                                 m.name, m.function,
2506                                 phba->Port);
2507                 else if (max_speed == 0)
2508                         snprintf(descp, 255,
2509                                 "Emulex %s %s %s",
2510                                 m.name, m.bus, m.function);
2511                 else
2512                         snprintf(descp, 255,
2513                                 "Emulex %s %d%s %s %s",
2514                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2515                                 m.bus, m.function);
2516         }
2517 }
2518
2519 /**
2520  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2521  * @phba: pointer to lpfc hba data structure.
2522  * @pring: pointer to a IOCB ring.
2523  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2524  *
2525  * This routine posts a given number of IOCBs with the associated DMA buffer
2526  * descriptors specified by the cnt argument to the given IOCB ring.
2527  *
2528  * Return codes
2529  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2530  **/
2531 int
2532 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2533 {
2534         IOCB_t *icmd;
2535         struct lpfc_iocbq *iocb;
2536         struct lpfc_dmabuf *mp1, *mp2;
2537
2538         cnt += pring->missbufcnt;
2539
2540         /* While there are buffers to post */
2541         while (cnt > 0) {
2542                 /* Allocate buffer for  command iocb */
2543                 iocb = lpfc_sli_get_iocbq(phba);
2544                 if (iocb == NULL) {
2545                         pring->missbufcnt = cnt;
2546                         return cnt;
2547                 }
2548                 icmd = &iocb->iocb;
2549
2550                 /* 2 buffers can be posted per command */
2551                 /* Allocate buffer to post */
2552                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2553                 if (mp1)
2554                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2555                 if (!mp1 || !mp1->virt) {
2556                         kfree(mp1);
2557                         lpfc_sli_release_iocbq(phba, iocb);
2558                         pring->missbufcnt = cnt;
2559                         return cnt;
2560                 }
2561
2562                 INIT_LIST_HEAD(&mp1->list);
2563                 /* Allocate buffer to post */
2564                 if (cnt > 1) {
2565                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2566                         if (mp2)
2567                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2568                                                             &mp2->phys);
2569                         if (!mp2 || !mp2->virt) {
2570                                 kfree(mp2);
2571                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2572                                 kfree(mp1);
2573                                 lpfc_sli_release_iocbq(phba, iocb);
2574                                 pring->missbufcnt = cnt;
2575                                 return cnt;
2576                         }
2577
2578                         INIT_LIST_HEAD(&mp2->list);
2579                 } else {
2580                         mp2 = NULL;
2581                 }
2582
2583                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2584                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2585                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2586                 icmd->ulpBdeCount = 1;
2587                 cnt--;
2588                 if (mp2) {
2589                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2590                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2591                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2592                         cnt--;
2593                         icmd->ulpBdeCount = 2;
2594                 }
2595
2596                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2597                 icmd->ulpLe = 1;
2598
2599                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2600                     IOCB_ERROR) {
2601                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2602                         kfree(mp1);
2603                         cnt++;
2604                         if (mp2) {
2605                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2606                                 kfree(mp2);
2607                                 cnt++;
2608                         }
2609                         lpfc_sli_release_iocbq(phba, iocb);
2610                         pring->missbufcnt = cnt;
2611                         return cnt;
2612                 }
2613                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2614                 if (mp2)
2615                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2616         }
2617         pring->missbufcnt = 0;
2618         return 0;
2619 }
2620
2621 /**
2622  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2623  * @phba: pointer to lpfc hba data structure.
2624  *
2625  * This routine posts initial receive IOCB buffers to the ELS ring. The
2626  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2627  * set to 64 IOCBs. SLI3 only.
2628  *
2629  * Return codes
2630  *   0 - success (currently always success)
2631  **/
2632 static int
2633 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2634 {
2635         struct lpfc_sli *psli = &phba->sli;
2636
2637         /* Ring 0, ELS / CT buffers */
2638         lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2639         /* Ring 2 - FCP no buffers needed */
2640
2641         return 0;
2642 }
2643
2644 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2645
2646 /**
2647  * lpfc_sha_init - Set up initial array of hash table entries
2648  * @HashResultPointer: pointer to an array as hash table.
2649  *
2650  * This routine sets up the initial values to the array of hash table entries
2651  * for the LC HBAs.
2652  **/
2653 static void
2654 lpfc_sha_init(uint32_t * HashResultPointer)
2655 {
2656         HashResultPointer[0] = 0x67452301;
2657         HashResultPointer[1] = 0xEFCDAB89;
2658         HashResultPointer[2] = 0x98BADCFE;
2659         HashResultPointer[3] = 0x10325476;
2660         HashResultPointer[4] = 0xC3D2E1F0;
2661 }
2662
2663 /**
2664  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2665  * @HashResultPointer: pointer to an initial/result hash table.
2666  * @HashWorkingPointer: pointer to an working hash table.
2667  *
2668  * This routine iterates an initial hash table pointed by @HashResultPointer
2669  * with the values from the working hash table pointeed by @HashWorkingPointer.
2670  * The results are putting back to the initial hash table, returned through
2671  * the @HashResultPointer as the result hash table.
2672  **/
2673 static void
2674 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2675 {
2676         int t;
2677         uint32_t TEMP;
2678         uint32_t A, B, C, D, E;
2679         t = 16;
2680         do {
2681                 HashWorkingPointer[t] =
2682                     S(1,
2683                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2684                                                                      8] ^
2685                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2686         } while (++t <= 79);
2687         t = 0;
2688         A = HashResultPointer[0];
2689         B = HashResultPointer[1];
2690         C = HashResultPointer[2];
2691         D = HashResultPointer[3];
2692         E = HashResultPointer[4];
2693
2694         do {
2695                 if (t < 20) {
2696                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2697                 } else if (t < 40) {
2698                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2699                 } else if (t < 60) {
2700                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2701                 } else {
2702                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2703                 }
2704                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2705                 E = D;
2706                 D = C;
2707                 C = S(30, B);
2708                 B = A;
2709                 A = TEMP;
2710         } while (++t <= 79);
2711
2712         HashResultPointer[0] += A;
2713         HashResultPointer[1] += B;
2714         HashResultPointer[2] += C;
2715         HashResultPointer[3] += D;
2716         HashResultPointer[4] += E;
2717
2718 }
2719
2720 /**
2721  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2722  * @RandomChallenge: pointer to the entry of host challenge random number array.
2723  * @HashWorking: pointer to the entry of the working hash array.
2724  *
2725  * This routine calculates the working hash array referred by @HashWorking
2726  * from the challenge random numbers associated with the host, referred by
2727  * @RandomChallenge. The result is put into the entry of the working hash
2728  * array and returned by reference through @HashWorking.
2729  **/
2730 static void
2731 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2732 {
2733         *HashWorking = (*RandomChallenge ^ *HashWorking);
2734 }
2735
2736 /**
2737  * lpfc_hba_init - Perform special handling for LC HBA initialization
2738  * @phba: pointer to lpfc hba data structure.
2739  * @hbainit: pointer to an array of unsigned 32-bit integers.
2740  *
2741  * This routine performs the special handling for LC HBA initialization.
2742  **/
2743 void
2744 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2745 {
2746         int t;
2747         uint32_t *HashWorking;
2748         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2749
2750         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2751         if (!HashWorking)
2752                 return;
2753
2754         HashWorking[0] = HashWorking[78] = *pwwnn++;
2755         HashWorking[1] = HashWorking[79] = *pwwnn;
2756
2757         for (t = 0; t < 7; t++)
2758                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2759
2760         lpfc_sha_init(hbainit);
2761         lpfc_sha_iterate(hbainit, HashWorking);
2762         kfree(HashWorking);
2763 }
2764
2765 /**
2766  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2767  * @vport: pointer to a virtual N_Port data structure.
2768  *
2769  * This routine performs the necessary cleanups before deleting the @vport.
2770  * It invokes the discovery state machine to perform necessary state
2771  * transitions and to release the ndlps associated with the @vport. Note,
2772  * the physical port is treated as @vport 0.
2773  **/
2774 void
2775 lpfc_cleanup(struct lpfc_vport *vport)
2776 {
2777         struct lpfc_hba   *phba = vport->phba;
2778         struct lpfc_nodelist *ndlp, *next_ndlp;
2779         int i = 0;
2780
2781         if (phba->link_state > LPFC_LINK_DOWN)
2782                 lpfc_port_link_failure(vport);
2783
2784         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2785                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2786                         ndlp = lpfc_enable_node(vport, ndlp,
2787                                                 NLP_STE_UNUSED_NODE);
2788                         if (!ndlp)
2789                                 continue;
2790                         spin_lock_irq(&phba->ndlp_lock);
2791                         NLP_SET_FREE_REQ(ndlp);
2792                         spin_unlock_irq(&phba->ndlp_lock);
2793                         /* Trigger the release of the ndlp memory */
2794                         lpfc_nlp_put(ndlp);
2795                         continue;
2796                 }
2797                 spin_lock_irq(&phba->ndlp_lock);
2798                 if (NLP_CHK_FREE_REQ(ndlp)) {
2799                         /* The ndlp should not be in memory free mode already */
2800                         spin_unlock_irq(&phba->ndlp_lock);
2801                         continue;
2802                 } else
2803                         /* Indicate request for freeing ndlp memory */
2804                         NLP_SET_FREE_REQ(ndlp);
2805                 spin_unlock_irq(&phba->ndlp_lock);
2806
2807                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2808                     ndlp->nlp_DID == Fabric_DID) {
2809                         /* Just free up ndlp with Fabric_DID for vports */
2810                         lpfc_nlp_put(ndlp);
2811                         continue;
2812                 }
2813
2814                 /* take care of nodes in unused state before the state
2815                  * machine taking action.
2816                  */
2817                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2818                         lpfc_nlp_put(ndlp);
2819                         continue;
2820                 }
2821
2822                 if (ndlp->nlp_type & NLP_FABRIC)
2823                         lpfc_disc_state_machine(vport, ndlp, NULL,
2824                                         NLP_EVT_DEVICE_RECOVERY);
2825
2826                 lpfc_disc_state_machine(vport, ndlp, NULL,
2827                                              NLP_EVT_DEVICE_RM);
2828         }
2829
2830         /* At this point, ALL ndlp's should be gone
2831          * because of the previous NLP_EVT_DEVICE_RM.
2832          * Lets wait for this to happen, if needed.
2833          */
2834         while (!list_empty(&vport->fc_nodes)) {
2835                 if (i++ > 3000) {
2836                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2837                                 "0233 Nodelist not empty\n");
2838                         list_for_each_entry_safe(ndlp, next_ndlp,
2839                                                 &vport->fc_nodes, nlp_listp) {
2840                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2841                                                 LOG_NODE,
2842                                                 "0282 did:x%x ndlp:x%px "
2843                                                 "usgmap:x%x refcnt:%d\n",
2844                                                 ndlp->nlp_DID, (void *)ndlp,
2845                                                 ndlp->nlp_usg_map,
2846                                                 kref_read(&ndlp->kref));
2847                         }
2848                         break;
2849                 }
2850
2851                 /* Wait for any activity on ndlps to settle */
2852                 msleep(10);
2853         }
2854         lpfc_cleanup_vports_rrqs(vport, NULL);
2855 }
2856
2857 /**
2858  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2859  * @vport: pointer to a virtual N_Port data structure.
2860  *
2861  * This routine stops all the timers associated with a @vport. This function
2862  * is invoked before disabling or deleting a @vport. Note that the physical
2863  * port is treated as @vport 0.
2864  **/
2865 void
2866 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2867 {
2868         del_timer_sync(&vport->els_tmofunc);
2869         del_timer_sync(&vport->delayed_disc_tmo);
2870         lpfc_can_disctmo(vport);
2871         return;
2872 }
2873
2874 /**
2875  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2876  * @phba: pointer to lpfc hba data structure.
2877  *
2878  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2879  * caller of this routine should already hold the host lock.
2880  **/
2881 void
2882 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2883 {
2884         /* Clear pending FCF rediscovery wait flag */
2885         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2886
2887         /* Now, try to stop the timer */
2888         del_timer(&phba->fcf.redisc_wait);
2889 }
2890
2891 /**
2892  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2893  * @phba: pointer to lpfc hba data structure.
2894  *
2895  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2896  * checks whether the FCF rediscovery wait timer is pending with the host
2897  * lock held before proceeding with disabling the timer and clearing the
2898  * wait timer pendig flag.
2899  **/
2900 void
2901 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2902 {
2903         spin_lock_irq(&phba->hbalock);
2904         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2905                 /* FCF rediscovery timer already fired or stopped */
2906                 spin_unlock_irq(&phba->hbalock);
2907                 return;
2908         }
2909         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2910         /* Clear failover in progress flags */
2911         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2912         spin_unlock_irq(&phba->hbalock);
2913 }
2914
2915 /**
2916  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2917  * @phba: pointer to lpfc hba data structure.
2918  *
2919  * This routine stops all the timers associated with a HBA. This function is
2920  * invoked before either putting a HBA offline or unloading the driver.
2921  **/
2922 void
2923 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2924 {
2925         if (phba->pport)
2926                 lpfc_stop_vport_timers(phba->pport);
2927         cancel_delayed_work_sync(&phba->eq_delay_work);
2928         del_timer_sync(&phba->sli.mbox_tmo);
2929         del_timer_sync(&phba->fabric_block_timer);
2930         del_timer_sync(&phba->eratt_poll);
2931         del_timer_sync(&phba->hb_tmofunc);
2932         if (phba->sli_rev == LPFC_SLI_REV4) {
2933                 del_timer_sync(&phba->rrq_tmr);
2934                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2935         }
2936         phba->hb_outstanding = 0;
2937
2938         switch (phba->pci_dev_grp) {
2939         case LPFC_PCI_DEV_LP:
2940                 /* Stop any LightPulse device specific driver timers */
2941                 del_timer_sync(&phba->fcp_poll_timer);
2942                 break;
2943         case LPFC_PCI_DEV_OC:
2944                 /* Stop any OneConnect device specific driver timers */
2945                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2946                 break;
2947         default:
2948                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2949                                 "0297 Invalid device group (x%x)\n",
2950                                 phba->pci_dev_grp);
2951                 break;
2952         }
2953         return;
2954 }
2955
2956 /**
2957  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2958  * @phba: pointer to lpfc hba data structure.
2959  *
2960  * This routine marks a HBA's management interface as blocked. Once the HBA's
2961  * management interface is marked as blocked, all the user space access to
2962  * the HBA, whether they are from sysfs interface or libdfc interface will
2963  * all be blocked. The HBA is set to block the management interface when the
2964  * driver prepares the HBA interface for online or offline.
2965  **/
2966 static void
2967 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2968 {
2969         unsigned long iflag;
2970         uint8_t actcmd = MBX_HEARTBEAT;
2971         unsigned long timeout;
2972
2973         spin_lock_irqsave(&phba->hbalock, iflag);
2974         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2975         spin_unlock_irqrestore(&phba->hbalock, iflag);
2976         if (mbx_action == LPFC_MBX_NO_WAIT)
2977                 return;
2978         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2979         spin_lock_irqsave(&phba->hbalock, iflag);
2980         if (phba->sli.mbox_active) {
2981                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2982                 /* Determine how long we might wait for the active mailbox
2983                  * command to be gracefully completed by firmware.
2984                  */
2985                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2986                                 phba->sli.mbox_active) * 1000) + jiffies;
2987         }
2988         spin_unlock_irqrestore(&phba->hbalock, iflag);
2989
2990         /* Wait for the outstnading mailbox command to complete */
2991         while (phba->sli.mbox_active) {
2992                 /* Check active mailbox complete status every 2ms */
2993                 msleep(2);
2994                 if (time_after(jiffies, timeout)) {
2995                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2996                                 "2813 Mgmt IO is Blocked %x "
2997                                 "- mbox cmd %x still active\n",
2998                                 phba->sli.sli_flag, actcmd);
2999                         break;
3000                 }
3001         }
3002 }
3003
3004 /**
3005  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3006  * @phba: pointer to lpfc hba data structure.
3007  *
3008  * Allocate RPIs for all active remote nodes. This is needed whenever
3009  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3010  * is to fixup the temporary rpi assignments.
3011  **/
3012 void
3013 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3014 {
3015         struct lpfc_nodelist  *ndlp, *next_ndlp;
3016         struct lpfc_vport **vports;
3017         int i, rpi;
3018         unsigned long flags;
3019
3020         if (phba->sli_rev != LPFC_SLI_REV4)
3021                 return;
3022
3023         vports = lpfc_create_vport_work_array(phba);
3024         if (vports == NULL)
3025                 return;
3026
3027         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3028                 if (vports[i]->load_flag & FC_UNLOADING)
3029                         continue;
3030
3031                 list_for_each_entry_safe(ndlp, next_ndlp,
3032                                          &vports[i]->fc_nodes,
3033                                          nlp_listp) {
3034                         if (!NLP_CHK_NODE_ACT(ndlp))
3035                                 continue;
3036                         rpi = lpfc_sli4_alloc_rpi(phba);
3037                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3038                                 spin_lock_irqsave(&phba->ndlp_lock, flags);
3039                                 NLP_CLR_NODE_ACT(ndlp);
3040                                 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3041                                 continue;
3042                         }
3043                         ndlp->nlp_rpi = rpi;
3044                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3045                                          LOG_NODE | LOG_DISCOVERY,
3046                                          "0009 Assign RPI x%x to ndlp x%px "
3047                                          "DID:x%06x flg:x%x map:x%x\n",
3048                                          ndlp->nlp_rpi, ndlp, ndlp->nlp_DID,
3049                                          ndlp->nlp_flag, ndlp->nlp_usg_map);
3050                 }
3051         }
3052         lpfc_destroy_vport_work_array(phba, vports);
3053 }
3054
3055 /**
3056  * lpfc_create_expedite_pool - create expedite pool
3057  * @phba: pointer to lpfc hba data structure.
3058  *
3059  * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3060  * to expedite pool. Mark them as expedite.
3061  **/
3062 static void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3063 {
3064         struct lpfc_sli4_hdw_queue *qp;
3065         struct lpfc_io_buf *lpfc_ncmd;
3066         struct lpfc_io_buf *lpfc_ncmd_next;
3067         struct lpfc_epd_pool *epd_pool;
3068         unsigned long iflag;
3069
3070         epd_pool = &phba->epd_pool;
3071         qp = &phba->sli4_hba.hdwq[0];
3072
3073         spin_lock_init(&epd_pool->lock);
3074         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3075         spin_lock(&epd_pool->lock);
3076         INIT_LIST_HEAD(&epd_pool->list);
3077         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3078                                  &qp->lpfc_io_buf_list_put, list) {
3079                 list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
3080                 lpfc_ncmd->expedite = true;
3081                 qp->put_io_bufs--;
3082                 epd_pool->count++;
3083                 if (epd_pool->count >= XRI_BATCH)
3084                         break;
3085         }
3086         spin_unlock(&epd_pool->lock);
3087         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3088 }
3089
3090 /**
3091  * lpfc_destroy_expedite_pool - destroy expedite pool
3092  * @phba: pointer to lpfc hba data structure.
3093  *
3094  * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3095  * of HWQ 0. Clear the mark.
3096  **/
3097 static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3098 {
3099         struct lpfc_sli4_hdw_queue *qp;
3100         struct lpfc_io_buf *lpfc_ncmd;
3101         struct lpfc_io_buf *lpfc_ncmd_next;
3102         struct lpfc_epd_pool *epd_pool;
3103         unsigned long iflag;
3104
3105         epd_pool = &phba->epd_pool;
3106         qp = &phba->sli4_hba.hdwq[0];
3107
3108         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3109         spin_lock(&epd_pool->lock);
3110         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3111                                  &epd_pool->list, list) {
3112                 list_move_tail(&lpfc_ncmd->list,
3113                                &qp->lpfc_io_buf_list_put);
3114                 lpfc_ncmd->flags = false;
3115                 qp->put_io_bufs++;
3116                 epd_pool->count--;
3117         }
3118         spin_unlock(&epd_pool->lock);
3119         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3120 }
3121
3122 /**
3123  * lpfc_create_multixri_pools - create multi-XRI pools
3124  * @phba: pointer to lpfc hba data structure.
3125  *
3126  * This routine initialize public, private per HWQ. Then, move XRIs from
3127  * lpfc_io_buf_list_put to public pool. High and low watermark are also
3128  * Initialized.
3129  **/
3130 void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3131 {
3132         u32 i, j;
3133         u32 hwq_count;
3134         u32 count_per_hwq;
3135         struct lpfc_io_buf *lpfc_ncmd;
3136         struct lpfc_io_buf *lpfc_ncmd_next;
3137         unsigned long iflag;
3138         struct lpfc_sli4_hdw_queue *qp;
3139         struct lpfc_multixri_pool *multixri_pool;
3140         struct lpfc_pbl_pool *pbl_pool;
3141         struct lpfc_pvt_pool *pvt_pool;
3142
3143         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3144                         "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3145                         phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3146                         phba->sli4_hba.io_xri_cnt);
3147
3148         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3149                 lpfc_create_expedite_pool(phba);
3150
3151         hwq_count = phba->cfg_hdw_queue;
3152         count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3153
3154         for (i = 0; i < hwq_count; i++) {
3155                 multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
3156
3157                 if (!multixri_pool) {
3158                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3159                                         "1238 Failed to allocate memory for "
3160                                         "multixri_pool\n");
3161
3162                         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3163                                 lpfc_destroy_expedite_pool(phba);
3164
3165                         j = 0;
3166                         while (j < i) {
3167                                 qp = &phba->sli4_hba.hdwq[j];
3168                                 kfree(qp->p_multixri_pool);
3169                                 j++;
3170                         }
3171                         phba->cfg_xri_rebalancing = 0;
3172                         return;
3173                 }
3174
3175                 qp = &phba->sli4_hba.hdwq[i];
3176                 qp->p_multixri_pool = multixri_pool;
3177
3178                 multixri_pool->xri_limit = count_per_hwq;
3179                 multixri_pool->rrb_next_hwqid = i;
3180
3181                 /* Deal with public free xri pool */
3182                 pbl_pool = &multixri_pool->pbl_pool;
3183                 spin_lock_init(&pbl_pool->lock);
3184                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3185                 spin_lock(&pbl_pool->lock);
3186                 INIT_LIST_HEAD(&pbl_pool->list);
3187                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3188                                          &qp->lpfc_io_buf_list_put, list) {
3189                         list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
3190                         qp->put_io_bufs--;
3191                         pbl_pool->count++;
3192                 }
3193                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3194                                 "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3195                                 pbl_pool->count, i);
3196                 spin_unlock(&pbl_pool->lock);
3197                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3198
3199                 /* Deal with private free xri pool */
3200                 pvt_pool = &multixri_pool->pvt_pool;
3201                 pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3202                 pvt_pool->low_watermark = XRI_BATCH;
3203                 spin_lock_init(&pvt_pool->lock);
3204                 spin_lock_irqsave(&pvt_pool->lock, iflag);
3205                 INIT_LIST_HEAD(&pvt_pool->list);
3206                 pvt_pool->count = 0;
3207                 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
3208         }
3209 }
3210
3211 /**
3212  * lpfc_destroy_multixri_pools - destroy multi-XRI pools
3213  * @phba: pointer to lpfc hba data structure.
3214  *
3215  * This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3216  **/
3217 static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3218 {
3219         u32 i;
3220         u32 hwq_count;
3221         struct lpfc_io_buf *lpfc_ncmd;
3222         struct lpfc_io_buf *lpfc_ncmd_next;
3223         unsigned long iflag;
3224         struct lpfc_sli4_hdw_queue *qp;
3225         struct lpfc_multixri_pool *multixri_pool;
3226         struct lpfc_pbl_pool *pbl_pool;
3227         struct lpfc_pvt_pool *pvt_pool;
3228
3229         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3230                 lpfc_destroy_expedite_pool(phba);
3231
3232         if (!(phba->pport->load_flag & FC_UNLOADING))
3233                 lpfc_sli_flush_io_rings(phba);
3234
3235         hwq_count = phba->cfg_hdw_queue;
3236
3237         for (i = 0; i < hwq_count; i++) {
3238                 qp = &phba->sli4_hba.hdwq[i];
3239                 multixri_pool = qp->p_multixri_pool;
3240                 if (!multixri_pool)
3241                         continue;
3242
3243                 qp->p_multixri_pool = NULL;
3244
3245                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3246
3247                 /* Deal with public free xri pool */
3248                 pbl_pool = &multixri_pool->pbl_pool;
3249                 spin_lock(&pbl_pool->lock);
3250
3251                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3252                                 "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3253                                 pbl_pool->count, i);
3254
3255                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3256                                          &pbl_pool->list, list) {
3257                         list_move_tail(&lpfc_ncmd->list,
3258                                        &qp->lpfc_io_buf_list_put);
3259                         qp->put_io_bufs++;
3260                         pbl_pool->count--;
3261                 }
3262
3263                 INIT_LIST_HEAD(&pbl_pool->list);
3264                 pbl_pool->count = 0;
3265
3266                 spin_unlock(&pbl_pool->lock);
3267
3268                 /* Deal with private free xri pool */
3269                 pvt_pool = &multixri_pool->pvt_pool;
3270                 spin_lock(&pvt_pool->lock);
3271
3272                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3273                                 "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3274                                 pvt_pool->count, i);
3275
3276                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3277                                          &pvt_pool->list, list) {
3278                         list_move_tail(&lpfc_ncmd->list,
3279                                        &qp->lpfc_io_buf_list_put);
3280                         qp->put_io_bufs++;
3281                         pvt_pool->count--;
3282                 }
3283
3284                 INIT_LIST_HEAD(&pvt_pool->list);
3285                 pvt_pool->count = 0;
3286
3287                 spin_unlock(&pvt_pool->lock);
3288                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3289
3290                 kfree(multixri_pool);
3291         }
3292 }
3293
3294 /**
3295  * lpfc_online - Initialize and bring a HBA online
3296  * @phba: pointer to lpfc hba data structure.
3297  *
3298  * This routine initializes the HBA and brings a HBA online. During this
3299  * process, the management interface is blocked to prevent user space access
3300  * to the HBA interfering with the driver initialization.
3301  *
3302  * Return codes
3303  *   0 - successful
3304  *   1 - failed
3305  **/
3306 int
3307 lpfc_online(struct lpfc_hba *phba)
3308 {
3309         struct lpfc_vport *vport;
3310         struct lpfc_vport **vports;
3311         int i, error = 0;
3312         bool vpis_cleared = false;
3313
3314         if (!phba)
3315                 return 0;
3316         vport = phba->pport;
3317
3318         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3319                 return 0;
3320
3321         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3322                         "0458 Bring Adapter online\n");
3323
3324         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3325
3326         if (phba->sli_rev == LPFC_SLI_REV4) {
3327                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3328                         lpfc_unblock_mgmt_io(phba);
3329                         return 1;
3330                 }
3331                 spin_lock_irq(&phba->hbalock);
3332                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3333                         vpis_cleared = true;
3334                 spin_unlock_irq(&phba->hbalock);
3335
3336                 /* Reestablish the local initiator port.
3337                  * The offline process destroyed the previous lport.
3338                  */
3339                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3340                                 !phba->nvmet_support) {
3341                         error = lpfc_nvme_create_localport(phba->pport);
3342                         if (error)
3343                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3344                                         "6132 NVME restore reg failed "
3345                                         "on nvmei error x%x\n", error);
3346                 }
3347         } else {
3348                 lpfc_sli_queue_init(phba);
3349                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3350                         lpfc_unblock_mgmt_io(phba);
3351                         return 1;
3352                 }
3353         }
3354
3355         vports = lpfc_create_vport_work_array(phba);
3356         if (vports != NULL) {
3357                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3358                         struct Scsi_Host *shost;
3359                         shost = lpfc_shost_from_vport(vports[i]);
3360                         spin_lock_irq(shost->host_lock);
3361                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3362                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3363                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3364                         if (phba->sli_rev == LPFC_SLI_REV4) {
3365                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3366                                 if ((vpis_cleared) &&
3367                                     (vports[i]->port_type !=
3368                                         LPFC_PHYSICAL_PORT))
3369                                         vports[i]->vpi = 0;
3370                         }
3371                         spin_unlock_irq(shost->host_lock);
3372                 }
3373         }
3374         lpfc_destroy_vport_work_array(phba, vports);
3375
3376         if (phba->cfg_xri_rebalancing)
3377                 lpfc_create_multixri_pools(phba);
3378
3379         lpfc_cpuhp_add(phba);
3380
3381         lpfc_unblock_mgmt_io(phba);
3382         return 0;
3383 }
3384
3385 /**
3386  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3387  * @phba: pointer to lpfc hba data structure.
3388  *
3389  * This routine marks a HBA's management interface as not blocked. Once the
3390  * HBA's management interface is marked as not blocked, all the user space
3391  * access to the HBA, whether they are from sysfs interface or libdfc
3392  * interface will be allowed. The HBA is set to block the management interface
3393  * when the driver prepares the HBA interface for online or offline and then
3394  * set to unblock the management interface afterwards.
3395  **/
3396 void
3397 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3398 {
3399         unsigned long iflag;
3400
3401         spin_lock_irqsave(&phba->hbalock, iflag);
3402         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3403         spin_unlock_irqrestore(&phba->hbalock, iflag);
3404 }
3405
3406 /**
3407  * lpfc_offline_prep - Prepare a HBA to be brought offline
3408  * @phba: pointer to lpfc hba data structure.
3409  *
3410  * This routine is invoked to prepare a HBA to be brought offline. It performs
3411  * unregistration login to all the nodes on all vports and flushes the mailbox
3412  * queue to make it ready to be brought offline.
3413  **/
3414 void
3415 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3416 {
3417         struct lpfc_vport *vport = phba->pport;
3418         struct lpfc_nodelist  *ndlp, *next_ndlp;
3419         struct lpfc_vport **vports;
3420         struct Scsi_Host *shost;
3421         int i;
3422
3423         if (vport->fc_flag & FC_OFFLINE_MODE)
3424                 return;
3425
3426         lpfc_block_mgmt_io(phba, mbx_action);
3427
3428         lpfc_linkdown(phba);
3429
3430         /* Issue an unreg_login to all nodes on all vports */
3431         vports = lpfc_create_vport_work_array(phba);
3432         if (vports != NULL) {
3433                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3434                         if (vports[i]->load_flag & FC_UNLOADING)
3435                                 continue;
3436                         shost = lpfc_shost_from_vport(vports[i]);
3437                         spin_lock_irq(shost->host_lock);
3438                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3439                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3440                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3441                         spin_unlock_irq(shost->host_lock);
3442
3443                         shost = lpfc_shost_from_vport(vports[i]);
3444                         list_for_each_entry_safe(ndlp, next_ndlp,
3445                                                  &vports[i]->fc_nodes,
3446                                                  nlp_listp) {
3447                                 if ((!NLP_CHK_NODE_ACT(ndlp)) ||
3448                                     ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
3449                                         /* Driver must assume RPI is invalid for
3450                                          * any unused or inactive node.
3451                                          */
3452                                         ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3453                                         continue;
3454                                 }
3455
3456                                 if (ndlp->nlp_type & NLP_FABRIC) {
3457                                         lpfc_disc_state_machine(vports[i], ndlp,
3458                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3459                                         lpfc_disc_state_machine(vports[i], ndlp,
3460                                                 NULL, NLP_EVT_DEVICE_RM);
3461                                 }
3462                                 spin_lock_irq(shost->host_lock);
3463                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3464                                 spin_unlock_irq(shost->host_lock);
3465                                 /*
3466                                  * Whenever an SLI4 port goes offline, free the
3467                                  * RPI. Get a new RPI when the adapter port
3468                                  * comes back online.
3469                                  */
3470                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3471                                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3472                                                  LOG_NODE | LOG_DISCOVERY,
3473                                                  "0011 Free RPI x%x on "
3474                                                  "ndlp:x%px did x%x "
3475                                                  "usgmap:x%x\n",
3476                                                  ndlp->nlp_rpi, ndlp,
3477                                                  ndlp->nlp_DID,
3478                                                  ndlp->nlp_usg_map);
3479                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3480                                         ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3481                                 }
3482                                 lpfc_unreg_rpi(vports[i], ndlp);
3483                         }
3484                 }
3485         }
3486         lpfc_destroy_vport_work_array(phba, vports);
3487
3488         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3489
3490         if (phba->wq)
3491                 flush_workqueue(phba->wq);
3492 }
3493
3494 /**
3495  * lpfc_offline - Bring a HBA offline
3496  * @phba: pointer to lpfc hba data structure.
3497  *
3498  * This routine actually brings a HBA offline. It stops all the timers
3499  * associated with the HBA, brings down the SLI layer, and eventually
3500  * marks the HBA as in offline state for the upper layer protocol.
3501  **/
3502 void
3503 lpfc_offline(struct lpfc_hba *phba)
3504 {
3505         struct Scsi_Host  *shost;
3506         struct lpfc_vport **vports;
3507         int i;
3508
3509         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3510                 return;
3511
3512         /* stop port and all timers associated with this hba */
3513         lpfc_stop_port(phba);
3514
3515         /* Tear down the local and target port registrations.  The
3516          * nvme transports need to cleanup.
3517          */
3518         lpfc_nvmet_destroy_targetport(phba);
3519         lpfc_nvme_destroy_localport(phba->pport);
3520
3521         vports = lpfc_create_vport_work_array(phba);
3522         if (vports != NULL)
3523                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3524                         lpfc_stop_vport_timers(vports[i]);
3525         lpfc_destroy_vport_work_array(phba, vports);
3526         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3527                         "0460 Bring Adapter offline\n");
3528         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3529            now.  */
3530         lpfc_sli_hba_down(phba);
3531         spin_lock_irq(&phba->hbalock);
3532         phba->work_ha = 0;
3533         spin_unlock_irq(&phba->hbalock);
3534         vports = lpfc_create_vport_work_array(phba);
3535         if (vports != NULL)
3536                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3537                         shost = lpfc_shost_from_vport(vports[i]);
3538                         spin_lock_irq(shost->host_lock);
3539                         vports[i]->work_port_events = 0;
3540                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3541                         spin_unlock_irq(shost->host_lock);
3542                 }
3543         lpfc_destroy_vport_work_array(phba, vports);
3544         __lpfc_cpuhp_remove(phba);
3545
3546         if (phba->cfg_xri_rebalancing)
3547                 lpfc_destroy_multixri_pools(phba);
3548 }
3549
3550 /**
3551  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3552  * @phba: pointer to lpfc hba data structure.
3553  *
3554  * This routine is to free all the SCSI buffers and IOCBs from the driver
3555  * list back to kernel. It is called from lpfc_pci_remove_one to free
3556  * the internal resources before the device is removed from the system.
3557  **/
3558 static void
3559 lpfc_scsi_free(struct lpfc_hba *phba)
3560 {
3561         struct lpfc_io_buf *sb, *sb_next;
3562
3563         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3564                 return;
3565
3566         spin_lock_irq(&phba->hbalock);
3567
3568         /* Release all the lpfc_scsi_bufs maintained by this host. */
3569
3570         spin_lock(&phba->scsi_buf_list_put_lock);
3571         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3572                                  list) {
3573                 list_del(&sb->list);
3574                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3575                               sb->dma_handle);
3576                 kfree(sb);
3577                 phba->total_scsi_bufs--;
3578         }
3579         spin_unlock(&phba->scsi_buf_list_put_lock);
3580
3581         spin_lock(&phba->scsi_buf_list_get_lock);
3582         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3583                                  list) {
3584                 list_del(&sb->list);
3585                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3586                               sb->dma_handle);
3587                 kfree(sb);
3588                 phba->total_scsi_bufs--;
3589         }
3590         spin_unlock(&phba->scsi_buf_list_get_lock);
3591         spin_unlock_irq(&phba->hbalock);
3592 }
3593
3594 /**
3595  * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
3596  * @phba: pointer to lpfc hba data structure.
3597  *
3598  * This routine is to free all the IO buffers and IOCBs from the driver
3599  * list back to kernel. It is called from lpfc_pci_remove_one to free
3600  * the internal resources before the device is removed from the system.
3601  **/
3602 void
3603 lpfc_io_free(struct lpfc_hba *phba)
3604 {
3605         struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
3606         struct lpfc_sli4_hdw_queue *qp;
3607         int idx;
3608
3609         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3610                 qp = &phba->sli4_hba.hdwq[idx];
3611                 /* Release all the lpfc_nvme_bufs maintained by this host. */
3612                 spin_lock(&qp->io_buf_list_put_lock);
3613                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3614                                          &qp->lpfc_io_buf_list_put,
3615                                          list) {
3616                         list_del(&lpfc_ncmd->list);
3617                         qp->put_io_bufs--;
3618                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3619                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3620                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3621                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3622                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3623                         kfree(lpfc_ncmd);
3624                         qp->total_io_bufs--;
3625                 }
3626                 spin_unlock(&qp->io_buf_list_put_lock);
3627
3628                 spin_lock(&qp->io_buf_list_get_lock);
3629                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3630                                          &qp->lpfc_io_buf_list_get,
3631                                          list) {
3632                         list_del(&lpfc_ncmd->list);
3633                         qp->get_io_bufs--;
3634                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3635                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3636                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3637                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3638                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3639                         kfree(lpfc_ncmd);
3640                         qp->total_io_bufs--;
3641                 }
3642                 spin_unlock(&qp->io_buf_list_get_lock);
3643         }
3644 }
3645
3646 /**
3647  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3648  * @phba: pointer to lpfc hba data structure.
3649  *
3650  * This routine first calculates the sizes of the current els and allocated
3651  * scsi sgl lists, and then goes through all sgls to updates the physical
3652  * XRIs assigned due to port function reset. During port initialization, the
3653  * current els and allocated scsi sgl lists are 0s.
3654  *
3655  * Return codes
3656  *   0 - successful (for now, it always returns 0)
3657  **/
3658 int
3659 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3660 {
3661         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3662         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3663         LIST_HEAD(els_sgl_list);
3664         int rc;
3665
3666         /*
3667          * update on pci function's els xri-sgl list
3668          */
3669         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3670
3671         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3672                 /* els xri-sgl expanded */
3673                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3674                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3675                                 "3157 ELS xri-sgl count increased from "
3676                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3677                                 els_xri_cnt);
3678                 /* allocate the additional els sgls */
3679                 for (i = 0; i < xri_cnt; i++) {
3680                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3681                                              GFP_KERNEL);
3682                         if (sglq_entry == NULL) {
3683                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3684                                                 "2562 Failure to allocate an "
3685                                                 "ELS sgl entry:%d\n", i);
3686                                 rc = -ENOMEM;
3687                                 goto out_free_mem;
3688                         }
3689                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3690                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3691                                                            &sglq_entry->phys);
3692                         if (sglq_entry->virt == NULL) {
3693                                 kfree(sglq_entry);
3694                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3695                                                 "2563 Failure to allocate an "
3696                                                 "ELS mbuf:%d\n", i);
3697                                 rc = -ENOMEM;
3698                                 goto out_free_mem;
3699                         }
3700                         sglq_entry->sgl = sglq_entry->virt;
3701                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3702                         sglq_entry->state = SGL_FREED;
3703                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3704                 }
3705                 spin_lock_irq(&phba->hbalock);
3706                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3707                 list_splice_init(&els_sgl_list,
3708                                  &phba->sli4_hba.lpfc_els_sgl_list);
3709                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3710                 spin_unlock_irq(&phba->hbalock);
3711         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3712                 /* els xri-sgl shrinked */
3713                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3714                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3715                                 "3158 ELS xri-sgl count decreased from "
3716                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3717                                 els_xri_cnt);
3718                 spin_lock_irq(&phba->hbalock);
3719                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3720                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3721                                  &els_sgl_list);
3722                 /* release extra els sgls from list */
3723                 for (i = 0; i < xri_cnt; i++) {
3724                         list_remove_head(&els_sgl_list,
3725                                          sglq_entry, struct lpfc_sglq, list);
3726                         if (sglq_entry) {
3727                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
3728                                                  sglq_entry->phys);
3729                                 kfree(sglq_entry);
3730                         }
3731                 }
3732                 list_splice_init(&els_sgl_list,
3733                                  &phba->sli4_hba.lpfc_els_sgl_list);
3734                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3735                 spin_unlock_irq(&phba->hbalock);
3736         } else
3737                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3738                                 "3163 ELS xri-sgl count unchanged: %d\n",
3739                                 els_xri_cnt);
3740         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3741
3742         /* update xris to els sgls on the list */
3743         sglq_entry = NULL;
3744         sglq_entry_next = NULL;
3745         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3746                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
3747                 lxri = lpfc_sli4_next_xritag(phba);
3748                 if (lxri == NO_XRI) {
3749                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3750                                         "2400 Failed to allocate xri for "
3751                                         "ELS sgl\n");
3752                         rc = -ENOMEM;
3753                         goto out_free_mem;
3754                 }
3755                 sglq_entry->sli4_lxritag = lxri;
3756                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3757         }
3758         return 0;
3759
3760 out_free_mem:
3761         lpfc_free_els_sgl_list(phba);
3762         return rc;
3763 }
3764
3765 /**
3766  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3767  * @phba: pointer to lpfc hba data structure.
3768  *
3769  * This routine first calculates the sizes of the current els and allocated
3770  * scsi sgl lists, and then goes through all sgls to updates the physical
3771  * XRIs assigned due to port function reset. During port initialization, the
3772  * current els and allocated scsi sgl lists are 0s.
3773  *
3774  * Return codes
3775  *   0 - successful (for now, it always returns 0)
3776  **/
3777 int
3778 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3779 {
3780         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3781         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3782         uint16_t nvmet_xri_cnt;
3783         LIST_HEAD(nvmet_sgl_list);
3784         int rc;
3785
3786         /*
3787          * update on pci function's nvmet xri-sgl list
3788          */
3789         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3790
3791         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3792         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3793         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3794                 /* els xri-sgl expanded */
3795                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3796                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3797                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3798                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3799                 /* allocate the additional nvmet sgls */
3800                 for (i = 0; i < xri_cnt; i++) {
3801                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3802                                              GFP_KERNEL);
3803                         if (sglq_entry == NULL) {
3804                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3805                                                 "6303 Failure to allocate an "
3806                                                 "NVMET sgl entry:%d\n", i);
3807                                 rc = -ENOMEM;
3808                                 goto out_free_mem;
3809                         }
3810                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
3811                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3812                                                            &sglq_entry->phys);
3813                         if (sglq_entry->virt == NULL) {
3814                                 kfree(sglq_entry);
3815                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3816                                                 "6304 Failure to allocate an "
3817                                                 "NVMET buf:%d\n", i);
3818                                 rc = -ENOMEM;
3819                                 goto out_free_mem;
3820                         }
3821                         sglq_entry->sgl = sglq_entry->virt;
3822                         memset(sglq_entry->sgl, 0,
3823                                phba->cfg_sg_dma_buf_size);
3824                         sglq_entry->state = SGL_FREED;
3825                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3826                 }
3827                 spin_lock_irq(&phba->hbalock);
3828                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3829                 list_splice_init(&nvmet_sgl_list,
3830                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3831                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3832                 spin_unlock_irq(&phba->hbalock);
3833         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3834                 /* nvmet xri-sgl shrunk */
3835                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3836                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3837                                 "6305 NVMET xri-sgl count decreased from "
3838                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3839                                 nvmet_xri_cnt);
3840                 spin_lock_irq(&phba->hbalock);
3841                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3842                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3843                                  &nvmet_sgl_list);
3844                 /* release extra nvmet sgls from list */
3845                 for (i = 0; i < xri_cnt; i++) {
3846                         list_remove_head(&nvmet_sgl_list,
3847                                          sglq_entry, struct lpfc_sglq, list);
3848                         if (sglq_entry) {
3849                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3850                                                     sglq_entry->phys);
3851                                 kfree(sglq_entry);
3852                         }
3853                 }
3854                 list_splice_init(&nvmet_sgl_list,
3855                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3856                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3857                 spin_unlock_irq(&phba->hbalock);
3858         } else
3859                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3860                                 "6306 NVMET xri-sgl count unchanged: %d\n",
3861                                 nvmet_xri_cnt);
3862         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3863
3864         /* update xris to nvmet sgls on the list */
3865         sglq_entry = NULL;
3866         sglq_entry_next = NULL;
3867         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3868                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3869                 lxri = lpfc_sli4_next_xritag(phba);
3870                 if (lxri == NO_XRI) {
3871                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3872                                         "6307 Failed to allocate xri for "
3873                                         "NVMET sgl\n");
3874                         rc = -ENOMEM;
3875                         goto out_free_mem;
3876                 }
3877                 sglq_entry->sli4_lxritag = lxri;
3878                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3879         }
3880         return 0;
3881
3882 out_free_mem:
3883         lpfc_free_nvmet_sgl_list(phba);
3884         return rc;
3885 }
3886
3887 int
3888 lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
3889 {
3890         LIST_HEAD(blist);
3891         struct lpfc_sli4_hdw_queue *qp;
3892         struct lpfc_io_buf *lpfc_cmd;
3893         struct lpfc_io_buf *iobufp, *prev_iobufp;
3894         int idx, cnt, xri, inserted;
3895
3896         cnt = 0;
3897         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3898                 qp = &phba->sli4_hba.hdwq[idx];
3899                 spin_lock_irq(&qp->io_buf_list_get_lock);
3900                 spin_lock(&qp->io_buf_list_put_lock);
3901
3902                 /* Take everything off the get and put lists */
3903                 list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
3904                 list_splice(&qp->lpfc_io_buf_list_put, &blist);
3905                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
3906                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
3907                 cnt += qp->get_io_bufs + qp->put_io_bufs;
3908                 qp->get_io_bufs = 0;
3909                 qp->put_io_bufs = 0;
3910                 qp->total_io_bufs = 0;
3911                 spin_unlock(&qp->io_buf_list_put_lock);
3912                 spin_unlock_irq(&qp->io_buf_list_get_lock);
3913         }
3914
3915         /*
3916          * Take IO buffers off blist and put on cbuf sorted by XRI.
3917          * This is because POST_SGL takes a sequential range of XRIs
3918          * to post to the firmware.
3919          */
3920         for (idx = 0; idx < cnt; idx++) {
3921                 list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
3922                 if (!lpfc_cmd)
3923                         return cnt;
3924                 if (idx == 0) {
3925                         list_add_tail(&lpfc_cmd->list, cbuf);
3926                         continue;
3927                 }
3928                 xri = lpfc_cmd->cur_iocbq.sli4_xritag;
3929                 inserted = 0;
3930                 prev_iobufp = NULL;
3931                 list_for_each_entry(iobufp, cbuf, list) {
3932                         if (xri < iobufp->cur_iocbq.sli4_xritag) {
3933                                 if (prev_iobufp)
3934                                         list_add(&lpfc_cmd->list,
3935                                                  &prev_iobufp->list);
3936                                 else
3937                                         list_add(&lpfc_cmd->list, cbuf);
3938                                 inserted = 1;
3939                                 break;
3940                         }
3941                         prev_iobufp = iobufp;
3942                 }
3943                 if (!inserted)
3944                         list_add_tail(&lpfc_cmd->list, cbuf);
3945         }
3946         return cnt;
3947 }
3948
3949 int
3950 lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
3951 {
3952         struct lpfc_sli4_hdw_queue *qp;
3953         struct lpfc_io_buf *lpfc_cmd;
3954         int idx, cnt;
3955
3956         qp = phba->sli4_hba.hdwq;
3957         cnt = 0;
3958         while (!list_empty(cbuf)) {
3959                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3960                         list_remove_head(cbuf, lpfc_cmd,
3961                                          struct lpfc_io_buf, list);
3962                         if (!lpfc_cmd)
3963                                 return cnt;
3964                         cnt++;
3965                         qp = &phba->sli4_hba.hdwq[idx];
3966                         lpfc_cmd->hdwq_no = idx;
3967                         lpfc_cmd->hdwq = qp;
3968                         lpfc_cmd->cur_iocbq.wqe_cmpl = NULL;
3969                         lpfc_cmd->cur_iocbq.iocb_cmpl = NULL;
3970                         spin_lock(&qp->io_buf_list_put_lock);
3971                         list_add_tail(&lpfc_cmd->list,
3972                                       &qp->lpfc_io_buf_list_put);
3973                         qp->put_io_bufs++;
3974                         qp->total_io_bufs++;
3975                         spin_unlock(&qp->io_buf_list_put_lock);
3976                 }
3977         }
3978         return cnt;
3979 }
3980
3981 /**
3982  * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
3983  * @phba: pointer to lpfc hba data structure.
3984  *
3985  * This routine first calculates the sizes of the current els and allocated
3986  * scsi sgl lists, and then goes through all sgls to updates the physical
3987  * XRIs assigned due to port function reset. During port initialization, the
3988  * current els and allocated scsi sgl lists are 0s.
3989  *
3990  * Return codes
3991  *   0 - successful (for now, it always returns 0)
3992  **/
3993 int
3994 lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
3995 {
3996         struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
3997         uint16_t i, lxri, els_xri_cnt;
3998         uint16_t io_xri_cnt, io_xri_max;
3999         LIST_HEAD(io_sgl_list);
4000         int rc, cnt;
4001
4002         /*
4003          * update on pci function's allocated nvme xri-sgl list
4004          */
4005
4006         /* maximum number of xris available for nvme buffers */
4007         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4008         io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4009         phba->sli4_hba.io_xri_max = io_xri_max;
4010
4011         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4012                         "6074 Current allocated XRI sgl count:%d, "
4013                         "maximum XRI count:%d\n",
4014                         phba->sli4_hba.io_xri_cnt,
4015                         phba->sli4_hba.io_xri_max);
4016
4017         cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
4018
4019         if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4020                 /* max nvme xri shrunk below the allocated nvme buffers */
4021                 io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4022                                         phba->sli4_hba.io_xri_max;
4023                 /* release the extra allocated nvme buffers */
4024                 for (i = 0; i < io_xri_cnt; i++) {
4025                         list_remove_head(&io_sgl_list, lpfc_ncmd,
4026                                          struct lpfc_io_buf, list);
4027                         if (lpfc_ncmd) {
4028                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4029                                               lpfc_ncmd->data,
4030                                               lpfc_ncmd->dma_handle);
4031                                 kfree(lpfc_ncmd);
4032                         }
4033                 }
4034                 phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4035         }
4036
4037         /* update xris associated to remaining allocated nvme buffers */
4038         lpfc_ncmd = NULL;
4039         lpfc_ncmd_next = NULL;
4040         phba->sli4_hba.io_xri_cnt = cnt;
4041         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4042                                  &io_sgl_list, list) {
4043                 lxri = lpfc_sli4_next_xritag(phba);
4044                 if (lxri == NO_XRI) {
4045                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4046                                         "6075 Failed to allocate xri for "
4047                                         "nvme buffer\n");
4048                         rc = -ENOMEM;
4049                         goto out_free_mem;
4050                 }
4051                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4052                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4053         }
4054         cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
4055         return 0;
4056
4057 out_free_mem:
4058         lpfc_io_free(phba);
4059         return rc;
4060 }
4061
4062 /**
4063  * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4064  * @vport: The virtual port for which this call being executed.
4065  * @num_to_allocate: The requested number of buffers to allocate.
4066  *
4067  * This routine allocates nvme buffers for device with SLI-4 interface spec,
4068  * the nvme buffer contains all the necessary information needed to initiate
4069  * an I/O. After allocating up to @num_to_allocate IO buffers and put
4070  * them on a list, it post them to the port by using SGL block post.
4071  *
4072  * Return codes:
4073  *   int - number of IO buffers that were allocated and posted.
4074  *   0 = failure, less than num_to_alloc is a partial failure.
4075  **/
4076 int
4077 lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4078 {
4079         struct lpfc_io_buf *lpfc_ncmd;
4080         struct lpfc_iocbq *pwqeq;
4081         uint16_t iotag, lxri = 0;
4082         int bcnt, num_posted;
4083         LIST_HEAD(prep_nblist);
4084         LIST_HEAD(post_nblist);
4085         LIST_HEAD(nvme_nblist);
4086
4087         phba->sli4_hba.io_xri_cnt = 0;
4088         for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4089                 lpfc_ncmd = kzalloc(sizeof(*lpfc_ncmd), GFP_KERNEL);
4090                 if (!lpfc_ncmd)
4091                         break;
4092                 /*
4093                  * Get memory from the pci pool to map the virt space to
4094                  * pci bus space for an I/O. The DMA buffer includes the
4095                  * number of SGE's necessary to support the sg_tablesize.
4096                  */
4097                 lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool,
4098                                                   GFP_KERNEL,
4099                                                   &lpfc_ncmd->dma_handle);
4100                 if (!lpfc_ncmd->data) {
4101                         kfree(lpfc_ncmd);
4102                         break;
4103                 }
4104
4105                 if (phba->cfg_xpsgl && !phba->nvmet_support) {
4106                         INIT_LIST_HEAD(&lpfc_ncmd->dma_sgl_xtra_list);
4107                 } else {
4108                         /*
4109                          * 4K Page alignment is CRITICAL to BlockGuard, double
4110                          * check to be sure.
4111                          */
4112                         if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4113                             (((unsigned long)(lpfc_ncmd->data) &
4114                             (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4115                                 lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
4116                                                 "3369 Memory alignment err: "
4117                                                 "addr=%lx\n",
4118                                                 (unsigned long)lpfc_ncmd->data);
4119                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4120                                               lpfc_ncmd->data,
4121                                               lpfc_ncmd->dma_handle);
4122                                 kfree(lpfc_ncmd);
4123                                 break;
4124                         }
4125                 }
4126
4127                 INIT_LIST_HEAD(&lpfc_ncmd->dma_cmd_rsp_list);
4128
4129                 lxri = lpfc_sli4_next_xritag(phba);
4130                 if (lxri == NO_XRI) {
4131                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4132                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4133                         kfree(lpfc_ncmd);
4134                         break;
4135                 }
4136                 pwqeq = &lpfc_ncmd->cur_iocbq;
4137
4138                 /* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4139                 iotag = lpfc_sli_next_iotag(phba, pwqeq);
4140                 if (iotag == 0) {
4141                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4142                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4143                         kfree(lpfc_ncmd);
4144                         lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
4145                                         "6121 Failed to allocate IOTAG for"
4146                                         " XRI:0x%x\n", lxri);
4147                         lpfc_sli4_free_xri(phba, lxri);
4148                         break;
4149                 }
4150                 pwqeq->sli4_lxritag = lxri;
4151                 pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4152                 pwqeq->context1 = lpfc_ncmd;
4153
4154                 /* Initialize local short-hand pointers. */
4155                 lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4156                 lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4157                 lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd;
4158                 spin_lock_init(&lpfc_ncmd->buf_lock);
4159
4160                 /* add the nvme buffer to a post list */
4161                 list_add_tail(&lpfc_ncmd->list, &post_nblist);
4162                 phba->sli4_hba.io_xri_cnt++;
4163         }
4164         lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4165                         "6114 Allocate %d out of %d requested new NVME "
4166                         "buffers\n", bcnt, num_to_alloc);
4167
4168         /* post the list of nvme buffer sgls to port if available */
4169         if (!list_empty(&post_nblist))
4170                 num_posted = lpfc_sli4_post_io_sgl_list(
4171                                 phba, &post_nblist, bcnt);
4172         else
4173                 num_posted = 0;
4174
4175         return num_posted;
4176 }
4177
4178 static uint64_t
4179 lpfc_get_wwpn(struct lpfc_hba *phba)
4180 {
4181         uint64_t wwn;
4182         int rc;
4183         LPFC_MBOXQ_t *mboxq;
4184         MAILBOX_t *mb;
4185
4186         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4187                                                 GFP_KERNEL);
4188         if (!mboxq)
4189                 return (uint64_t)-1;
4190
4191         /* First get WWN of HBA instance */
4192         lpfc_read_nv(phba, mboxq);
4193         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4194         if (rc != MBX_SUCCESS) {
4195                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4196                                 "6019 Mailbox failed , mbxCmd x%x "
4197                                 "READ_NV, mbxStatus x%x\n",
4198                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4199                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4200                 mempool_free(mboxq, phba->mbox_mem_pool);
4201                 return (uint64_t) -1;
4202         }
4203         mb = &mboxq->u.mb;
4204         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4205         /* wwn is WWPN of HBA instance */
4206         mempool_free(mboxq, phba->mbox_mem_pool);
4207         if (phba->sli_rev == LPFC_SLI_REV4)
4208                 return be64_to_cpu(wwn);
4209         else
4210                 return rol64(wwn, 32);
4211 }
4212
4213 /**
4214  * lpfc_create_port - Create an FC port
4215  * @phba: pointer to lpfc hba data structure.
4216  * @instance: a unique integer ID to this FC port.
4217  * @dev: pointer to the device data structure.
4218  *
4219  * This routine creates a FC port for the upper layer protocol. The FC port
4220  * can be created on top of either a physical port or a virtual port provided
4221  * by the HBA. This routine also allocates a SCSI host data structure (shost)
4222  * and associates the FC port created before adding the shost into the SCSI
4223  * layer.
4224  *
4225  * Return codes
4226  *   @vport - pointer to the virtual N_Port data structure.
4227  *   NULL - port create failed.
4228  **/
4229 struct lpfc_vport *
4230 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4231 {
4232         struct lpfc_vport *vport;
4233         struct Scsi_Host  *shost = NULL;
4234         int error = 0;
4235         int i;
4236         uint64_t wwn;
4237         bool use_no_reset_hba = false;
4238         int rc;
4239
4240         if (lpfc_no_hba_reset_cnt) {
4241                 if (phba->sli_rev < LPFC_SLI_REV4 &&
4242                     dev == &phba->pcidev->dev) {
4243                         /* Reset the port first */
4244                         lpfc_sli_brdrestart(phba);
4245                         rc = lpfc_sli_chipset_init(phba);
4246                         if (rc)
4247                                 return NULL;
4248                 }
4249                 wwn = lpfc_get_wwpn(phba);
4250         }
4251
4252         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4253                 if (wwn == lpfc_no_hba_reset[i]) {
4254                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4255                                         "6020 Setting use_no_reset port=%llx\n",
4256                                         wwn);
4257                         use_no_reset_hba = true;
4258                         break;
4259                 }
4260         }
4261
4262         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4263                 if (dev != &phba->pcidev->dev) {
4264                         shost = scsi_host_alloc(&lpfc_vport_template,
4265                                                 sizeof(struct lpfc_vport));
4266                 } else {
4267                         if (!use_no_reset_hba)
4268                                 shost = scsi_host_alloc(&lpfc_template,
4269                                                 sizeof(struct lpfc_vport));
4270                         else
4271                                 shost = scsi_host_alloc(&lpfc_template_no_hr,
4272                                                 sizeof(struct lpfc_vport));
4273                 }
4274         } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
4275                 shost = scsi_host_alloc(&lpfc_template_nvme,
4276                                         sizeof(struct lpfc_vport));
4277         }
4278         if (!shost)
4279                 goto out;
4280
4281         vport = (struct lpfc_vport *) shost->hostdata;
4282         vport->phba = phba;
4283         vport->load_flag |= FC_LOADING;
4284         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4285         vport->fc_rscn_flush = 0;
4286         lpfc_get_vport_cfgparam(vport);
4287
4288         /* Adjust value in vport */
4289         vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4290
4291         shost->unique_id = instance;
4292         shost->max_id = LPFC_MAX_TARGET;
4293         shost->max_lun = vport->cfg_max_luns;
4294         shost->this_id = -1;
4295         shost->max_cmd_len = 16;
4296
4297         if (phba->sli_rev == LPFC_SLI_REV4) {
4298                 if (!phba->cfg_fcp_mq_threshold ||
4299                     phba->cfg_fcp_mq_threshold > phba->cfg_hdw_queue)
4300                         phba->cfg_fcp_mq_threshold = phba->cfg_hdw_queue;
4301
4302                 shost->nr_hw_queues = min_t(int, 2 * num_possible_nodes(),
4303                                             phba->cfg_fcp_mq_threshold);
4304
4305                 shost->dma_boundary =
4306                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4307
4308                 if (phba->cfg_xpsgl && !phba->nvmet_support)
4309                         shost->sg_tablesize = LPFC_MAX_SG_TABLESIZE;
4310                 else
4311                         shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
4312         } else
4313                 /* SLI-3 has a limited number of hardware queues (3),
4314                  * thus there is only one for FCP processing.
4315                  */
4316                 shost->nr_hw_queues = 1;
4317
4318         /*
4319          * Set initial can_queue value since 0 is no longer supported and
4320          * scsi_add_host will fail. This will be adjusted later based on the
4321          * max xri value determined in hba setup.
4322          */
4323         shost->can_queue = phba->cfg_hba_queue_depth - 10;
4324         if (dev != &phba->pcidev->dev) {
4325                 shost->transportt = lpfc_vport_transport_template;
4326                 vport->port_type = LPFC_NPIV_PORT;
4327         } else {
4328                 shost->transportt = lpfc_transport_template;
4329                 vport->port_type = LPFC_PHYSICAL_PORT;
4330         }
4331
4332         /* Initialize all internally managed lists. */
4333         INIT_LIST_HEAD(&vport->fc_nodes);
4334         INIT_LIST_HEAD(&vport->rcv_buffer_list);
4335         spin_lock_init(&vport->work_port_lock);
4336
4337         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4338
4339         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4340
4341         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4342
4343         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4344                 lpfc_setup_bg(phba, shost);
4345
4346         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4347         if (error)
4348                 goto out_put_shost;
4349
4350         spin_lock_irq(&phba->port_list_lock);
4351         list_add_tail(&vport->listentry, &phba->port_list);
4352         spin_unlock_irq(&phba->port_list_lock);
4353         return vport;
4354
4355 out_put_shost:
4356         scsi_host_put(shost);
4357 out:
4358         return NULL;
4359 }
4360
4361 /**
4362  * destroy_port -  destroy an FC port
4363  * @vport: pointer to an lpfc virtual N_Port data structure.
4364  *
4365  * This routine destroys a FC port from the upper layer protocol. All the
4366  * resources associated with the port are released.
4367  **/
4368 void
4369 destroy_port(struct lpfc_vport *vport)
4370 {
4371         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4372         struct lpfc_hba  *phba = vport->phba;
4373
4374         lpfc_debugfs_terminate(vport);
4375         fc_remove_host(shost);
4376         scsi_remove_host(shost);
4377
4378         spin_lock_irq(&phba->port_list_lock);
4379         list_del_init(&vport->listentry);
4380         spin_unlock_irq(&phba->port_list_lock);
4381
4382         lpfc_cleanup(vport);
4383         return;
4384 }
4385
4386 /**
4387  * lpfc_get_instance - Get a unique integer ID
4388  *
4389  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4390  * uses the kernel idr facility to perform the task.
4391  *
4392  * Return codes:
4393  *   instance - a unique integer ID allocated as the new instance.
4394  *   -1 - lpfc get instance failed.
4395  **/
4396 int
4397 lpfc_get_instance(void)
4398 {
4399         int ret;
4400
4401         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4402         return ret < 0 ? -1 : ret;
4403 }
4404
4405 /**
4406  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4407  * @shost: pointer to SCSI host data structure.
4408  * @time: elapsed time of the scan in jiffies.
4409  *
4410  * This routine is called by the SCSI layer with a SCSI host to determine
4411  * whether the scan host is finished.
4412  *
4413  * Note: there is no scan_start function as adapter initialization will have
4414  * asynchronously kicked off the link initialization.
4415  *
4416  * Return codes
4417  *   0 - SCSI host scan is not over yet.
4418  *   1 - SCSI host scan is over.
4419  **/
4420 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4421 {
4422         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4423         struct lpfc_hba   *phba = vport->phba;
4424         int stat = 0;
4425
4426         spin_lock_irq(shost->host_lock);
4427
4428         if (vport->load_flag & FC_UNLOADING) {
4429                 stat = 1;
4430                 goto finished;
4431         }
4432         if (time >= msecs_to_jiffies(30 * 1000)) {
4433                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4434                                 "0461 Scanning longer than 30 "
4435                                 "seconds.  Continuing initialization\n");
4436                 stat = 1;
4437                 goto finished;
4438         }
4439         if (time >= msecs_to_jiffies(15 * 1000) &&
4440             phba->link_state <= LPFC_LINK_DOWN) {
4441                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4442                                 "0465 Link down longer than 15 "
4443                                 "seconds.  Continuing initialization\n");
4444                 stat = 1;
4445                 goto finished;
4446         }
4447
4448         if (vport->port_state != LPFC_VPORT_READY)
4449                 goto finished;
4450         if (vport->num_disc_nodes || vport->fc_prli_sent)
4451                 goto finished;
4452         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4453                 goto finished;
4454         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4455                 goto finished;
4456
4457         stat = 1;
4458
4459 finished:
4460         spin_unlock_irq(shost->host_lock);
4461         return stat;
4462 }
4463
4464 static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4465 {
4466         struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4467         struct lpfc_hba   *phba = vport->phba;
4468
4469         fc_host_supported_speeds(shost) = 0;
4470         if (phba->lmt & LMT_128Gb)
4471                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4472         if (phba->lmt & LMT_64Gb)
4473                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4474         if (phba->lmt & LMT_32Gb)
4475                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4476         if (phba->lmt & LMT_16Gb)
4477                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4478         if (phba->lmt & LMT_10Gb)
4479                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4480         if (phba->lmt & LMT_8Gb)
4481                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4482         if (phba->lmt & LMT_4Gb)
4483                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4484         if (phba->lmt & LMT_2Gb)
4485                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4486         if (phba->lmt & LMT_1Gb)
4487                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4488 }
4489
4490 /**
4491  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4492  * @shost: pointer to SCSI host data structure.
4493  *
4494  * This routine initializes a given SCSI host attributes on a FC port. The
4495  * SCSI host can be either on top of a physical port or a virtual port.
4496  **/
4497 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4498 {
4499         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4500         struct lpfc_hba   *phba = vport->phba;
4501         /*
4502          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4503          */
4504
4505         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4506         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4507         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4508
4509         memset(fc_host_supported_fc4s(shost), 0,
4510                sizeof(fc_host_supported_fc4s(shost)));
4511         fc_host_supported_fc4s(shost)[2] = 1;
4512         fc_host_supported_fc4s(shost)[7] = 1;
4513
4514         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4515                                  sizeof fc_host_symbolic_name(shost));
4516
4517         lpfc_host_supported_speeds_set(shost);
4518
4519         fc_host_maxframe_size(shost) =
4520                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4521                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4522
4523         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4524
4525         /* This value is also unchanging */
4526         memset(fc_host_active_fc4s(shost), 0,
4527                sizeof(fc_host_active_fc4s(shost)));
4528         fc_host_active_fc4s(shost)[2] = 1;
4529         fc_host_active_fc4s(shost)[7] = 1;
4530
4531         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4532         spin_lock_irq(shost->host_lock);
4533         vport->load_flag &= ~FC_LOADING;
4534         spin_unlock_irq(shost->host_lock);
4535 }
4536
4537 /**
4538  * lpfc_stop_port_s3 - Stop SLI3 device port
4539  * @phba: pointer to lpfc hba data structure.
4540  *
4541  * This routine is invoked to stop an SLI3 device port, it stops the device
4542  * from generating interrupts and stops the device driver's timers for the
4543  * device.
4544  **/
4545 static void
4546 lpfc_stop_port_s3(struct lpfc_hba *phba)
4547 {
4548         /* Clear all interrupt enable conditions */
4549         writel(0, phba->HCregaddr);
4550         readl(phba->HCregaddr); /* flush */
4551         /* Clear all pending interrupts */
4552         writel(0xffffffff, phba->HAregaddr);
4553         readl(phba->HAregaddr); /* flush */
4554
4555         /* Reset some HBA SLI setup states */
4556         lpfc_stop_hba_timers(phba);
4557         phba->pport->work_port_events = 0;
4558 }
4559
4560 /**
4561  * lpfc_stop_port_s4 - Stop SLI4 device port
4562  * @phba: pointer to lpfc hba data structure.
4563  *
4564  * This routine is invoked to stop an SLI4 device port, it stops the device
4565  * from generating interrupts and stops the device driver's timers for the
4566  * device.
4567  **/
4568 static void
4569 lpfc_stop_port_s4(struct lpfc_hba *phba)
4570 {
4571         /* Reset some HBA SLI4 setup states */
4572         lpfc_stop_hba_timers(phba);
4573         if (phba->pport)
4574                 phba->pport->work_port_events = 0;
4575         phba->sli4_hba.intr_enable = 0;
4576 }
4577
4578 /**
4579  * lpfc_stop_port - Wrapper function for stopping hba port
4580  * @phba: Pointer to HBA context object.
4581  *
4582  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4583  * the API jump table function pointer from the lpfc_hba struct.
4584  **/
4585 void
4586 lpfc_stop_port(struct lpfc_hba *phba)
4587 {
4588         phba->lpfc_stop_port(phba);
4589
4590         if (phba->wq)
4591                 flush_workqueue(phba->wq);
4592 }
4593
4594 /**
4595  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4596  * @phba: Pointer to hba for which this call is being executed.
4597  *
4598  * This routine starts the timer waiting for the FCF rediscovery to complete.
4599  **/
4600 void
4601 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4602 {
4603         unsigned long fcf_redisc_wait_tmo =
4604                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4605         /* Start fcf rediscovery wait period timer */
4606         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4607         spin_lock_irq(&phba->hbalock);
4608         /* Allow action to new fcf asynchronous event */
4609         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4610         /* Mark the FCF rediscovery pending state */
4611         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4612         spin_unlock_irq(&phba->hbalock);
4613 }
4614
4615 /**
4616  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4617  * @ptr: Map to lpfc_hba data structure pointer.
4618  *
4619  * This routine is invoked when waiting for FCF table rediscover has been
4620  * timed out. If new FCF record(s) has (have) been discovered during the
4621  * wait period, a new FCF event shall be added to the FCOE async event
4622  * list, and then worker thread shall be waked up for processing from the
4623  * worker thread context.
4624  **/
4625 static void
4626 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4627 {
4628         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4629
4630         /* Don't send FCF rediscovery event if timer cancelled */
4631         spin_lock_irq(&phba->hbalock);
4632         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4633                 spin_unlock_irq(&phba->hbalock);
4634                 return;
4635         }
4636         /* Clear FCF rediscovery timer pending flag */
4637         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4638         /* FCF rediscovery event to worker thread */
4639         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4640         spin_unlock_irq(&phba->hbalock);
4641         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4642                         "2776 FCF rediscover quiescent timer expired\n");
4643         /* wake up worker thread */
4644         lpfc_worker_wake_up(phba);
4645 }
4646
4647 /**
4648  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4649  * @phba: pointer to lpfc hba data structure.
4650  * @acqe_link: pointer to the async link completion queue entry.
4651  *
4652  * This routine is to parse the SLI4 link-attention link fault code.
4653  **/
4654 static void
4655 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4656                            struct lpfc_acqe_link *acqe_link)
4657 {
4658         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4659         case LPFC_ASYNC_LINK_FAULT_NONE:
4660         case LPFC_ASYNC_LINK_FAULT_LOCAL:
4661         case LPFC_ASYNC_LINK_FAULT_REMOTE:
4662         case LPFC_ASYNC_LINK_FAULT_LR_LRR:
4663                 break;
4664         default:
4665                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4666                                 "0398 Unknown link fault code: x%x\n",
4667                                 bf_get(lpfc_acqe_link_fault, acqe_link));
4668                 break;
4669         }
4670 }
4671
4672 /**
4673  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4674  * @phba: pointer to lpfc hba data structure.
4675  * @acqe_link: pointer to the async link completion queue entry.
4676  *
4677  * This routine is to parse the SLI4 link attention type and translate it
4678  * into the base driver's link attention type coding.
4679  *
4680  * Return: Link attention type in terms of base driver's coding.
4681  **/
4682 static uint8_t
4683 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4684                           struct lpfc_acqe_link *acqe_link)
4685 {
4686         uint8_t att_type;
4687
4688         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4689         case LPFC_ASYNC_LINK_STATUS_DOWN:
4690         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4691                 att_type = LPFC_ATT_LINK_DOWN;
4692                 break;
4693         case LPFC_ASYNC_LINK_STATUS_UP:
4694                 /* Ignore physical link up events - wait for logical link up */
4695                 att_type = LPFC_ATT_RESERVED;
4696                 break;
4697         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4698                 att_type = LPFC_ATT_LINK_UP;
4699                 break;
4700         default:
4701                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4702                                 "0399 Invalid link attention type: x%x\n",
4703                                 bf_get(lpfc_acqe_link_status, acqe_link));
4704                 att_type = LPFC_ATT_RESERVED;
4705                 break;
4706         }
4707         return att_type;
4708 }
4709
4710 /**
4711  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4712  * @phba: pointer to lpfc hba data structure.
4713  *
4714  * This routine is to get an SLI3 FC port's link speed in Mbps.
4715  *
4716  * Return: link speed in terms of Mbps.
4717  **/
4718 uint32_t
4719 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4720 {
4721         uint32_t link_speed;
4722
4723         if (!lpfc_is_link_up(phba))
4724                 return 0;
4725
4726         if (phba->sli_rev <= LPFC_SLI_REV3) {
4727                 switch (phba->fc_linkspeed) {
4728                 case LPFC_LINK_SPEED_1GHZ:
4729                         link_speed = 1000;
4730                         break;
4731                 case LPFC_LINK_SPEED_2GHZ:
4732                         link_speed = 2000;
4733                         break;
4734                 case LPFC_LINK_SPEED_4GHZ:
4735                         link_speed = 4000;
4736                         break;
4737                 case LPFC_LINK_SPEED_8GHZ:
4738                         link_speed = 8000;
4739                         break;
4740                 case LPFC_LINK_SPEED_10GHZ:
4741                         link_speed = 10000;
4742                         break;
4743                 case LPFC_LINK_SPEED_16GHZ:
4744                         link_speed = 16000;
4745                         break;
4746                 default:
4747                         link_speed = 0;
4748                 }
4749         } else {
4750                 if (phba->sli4_hba.link_state.logical_speed)
4751                         link_speed =
4752                               phba->sli4_hba.link_state.logical_speed;
4753                 else
4754                         link_speed = phba->sli4_hba.link_state.speed;
4755         }
4756         return link_speed;
4757 }
4758
4759 /**
4760  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4761  * @phba: pointer to lpfc hba data structure.
4762  * @evt_code: asynchronous event code.
4763  * @speed_code: asynchronous event link speed code.
4764  *
4765  * This routine is to parse the giving SLI4 async event link speed code into
4766  * value of Mbps for the link speed.
4767  *
4768  * Return: link speed in terms of Mbps.
4769  **/
4770 static uint32_t
4771 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4772                            uint8_t speed_code)
4773 {
4774         uint32_t port_speed;
4775
4776         switch (evt_code) {
4777         case LPFC_TRAILER_CODE_LINK:
4778                 switch (speed_code) {
4779                 case LPFC_ASYNC_LINK_SPEED_ZERO:
4780                         port_speed = 0;
4781                         break;
4782                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4783                         port_speed = 10;
4784                         break;
4785                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4786                         port_speed = 100;
4787                         break;
4788                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4789                         port_speed = 1000;
4790                         break;
4791                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4792                         port_speed = 10000;
4793                         break;
4794                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4795                         port_speed = 20000;
4796                         break;
4797                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4798                         port_speed = 25000;
4799                         break;
4800                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4801                         port_speed = 40000;
4802                         break;
4803                 default:
4804                         port_speed = 0;
4805                 }
4806                 break;
4807         case LPFC_TRAILER_CODE_FC:
4808                 switch (speed_code) {
4809                 case LPFC_FC_LA_SPEED_UNKNOWN:
4810                         port_speed = 0;
4811                         break;
4812                 case LPFC_FC_LA_SPEED_1G:
4813                         port_speed = 1000;
4814                         break;
4815                 case LPFC_FC_LA_SPEED_2G:
4816                         port_speed = 2000;
4817                         break;
4818                 case LPFC_FC_LA_SPEED_4G:
4819                         port_speed = 4000;
4820                         break;
4821                 case LPFC_FC_LA_SPEED_8G:
4822                         port_speed = 8000;
4823                         break;
4824                 case LPFC_FC_LA_SPEED_10G:
4825                         port_speed = 10000;
4826                         break;
4827                 case LPFC_FC_LA_SPEED_16G:
4828                         port_speed = 16000;
4829                         break;
4830                 case LPFC_FC_LA_SPEED_32G:
4831                         port_speed = 32000;
4832                         break;
4833                 case LPFC_FC_LA_SPEED_64G:
4834                         port_speed = 64000;
4835                         break;
4836                 case LPFC_FC_LA_SPEED_128G:
4837                         port_speed = 128000;
4838                         break;
4839                 default:
4840                         port_speed = 0;
4841                 }
4842                 break;
4843         default:
4844                 port_speed = 0;
4845         }
4846         return port_speed;
4847 }
4848
4849 /**
4850  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4851  * @phba: pointer to lpfc hba data structure.
4852  * @acqe_link: pointer to the async link completion queue entry.
4853  *
4854  * This routine is to handle the SLI4 asynchronous FCoE link event.
4855  **/
4856 static void
4857 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4858                          struct lpfc_acqe_link *acqe_link)
4859 {
4860         struct lpfc_dmabuf *mp;
4861         LPFC_MBOXQ_t *pmb;
4862         MAILBOX_t *mb;
4863         struct lpfc_mbx_read_top *la;
4864         uint8_t att_type;
4865         int rc;
4866
4867         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4868         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4869                 return;
4870         phba->fcoe_eventtag = acqe_link->event_tag;
4871         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4872         if (!pmb) {
4873                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4874                                 "0395 The mboxq allocation failed\n");
4875                 return;
4876         }
4877         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4878         if (!mp) {
4879                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4880                                 "0396 The lpfc_dmabuf allocation failed\n");
4881                 goto out_free_pmb;
4882         }
4883         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4884         if (!mp->virt) {
4885                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4886                                 "0397 The mbuf allocation failed\n");
4887                 goto out_free_dmabuf;
4888         }
4889
4890         /* Cleanup any outstanding ELS commands */
4891         lpfc_els_flush_all_cmd(phba);
4892
4893         /* Block ELS IOCBs until we have done process link event */
4894         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4895
4896         /* Update link event statistics */
4897         phba->sli.slistat.link_event++;
4898
4899         /* Create lpfc_handle_latt mailbox command from link ACQE */
4900         lpfc_read_topology(phba, pmb, mp);
4901         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4902         pmb->vport = phba->pport;
4903
4904         /* Keep the link status for extra SLI4 state machine reference */
4905         phba->sli4_hba.link_state.speed =
4906                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4907                                 bf_get(lpfc_acqe_link_speed, acqe_link));
4908         phba->sli4_hba.link_state.duplex =
4909                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
4910         phba->sli4_hba.link_state.status =
4911                                 bf_get(lpfc_acqe_link_status, acqe_link);
4912         phba->sli4_hba.link_state.type =
4913                                 bf_get(lpfc_acqe_link_type, acqe_link);
4914         phba->sli4_hba.link_state.number =
4915                                 bf_get(lpfc_acqe_link_number, acqe_link);
4916         phba->sli4_hba.link_state.fault =
4917                                 bf_get(lpfc_acqe_link_fault, acqe_link);
4918         phba->sli4_hba.link_state.logical_speed =
4919                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4920
4921         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4922                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
4923                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4924                         "Logical speed:%dMbps Fault:%d\n",
4925                         phba->sli4_hba.link_state.speed,
4926                         phba->sli4_hba.link_state.topology,
4927                         phba->sli4_hba.link_state.status,
4928                         phba->sli4_hba.link_state.type,
4929                         phba->sli4_hba.link_state.number,
4930                         phba->sli4_hba.link_state.logical_speed,
4931                         phba->sli4_hba.link_state.fault);
4932         /*
4933          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4934          * topology info. Note: Optional for non FC-AL ports.
4935          */
4936         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4937                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4938                 if (rc == MBX_NOT_FINISHED)
4939                         goto out_free_dmabuf;
4940                 return;
4941         }
4942         /*
4943          * For FCoE Mode: fill in all the topology information we need and call
4944          * the READ_TOPOLOGY completion routine to continue without actually
4945          * sending the READ_TOPOLOGY mailbox command to the port.
4946          */
4947         /* Initialize completion status */
4948         mb = &pmb->u.mb;
4949         mb->mbxStatus = MBX_SUCCESS;
4950
4951         /* Parse port fault information field */
4952         lpfc_sli4_parse_latt_fault(phba, acqe_link);
4953
4954         /* Parse and translate link attention fields */
4955         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4956         la->eventTag = acqe_link->event_tag;
4957         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4958         bf_set(lpfc_mbx_read_top_link_spd, la,
4959                (bf_get(lpfc_acqe_link_speed, acqe_link)));
4960
4961         /* Fake the the following irrelvant fields */
4962         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4963         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4964         bf_set(lpfc_mbx_read_top_il, la, 0);
4965         bf_set(lpfc_mbx_read_top_pb, la, 0);
4966         bf_set(lpfc_mbx_read_top_fa, la, 0);
4967         bf_set(lpfc_mbx_read_top_mm, la, 0);
4968
4969         /* Invoke the lpfc_handle_latt mailbox command callback function */
4970         lpfc_mbx_cmpl_read_topology(phba, pmb);
4971
4972         return;
4973
4974 out_free_dmabuf:
4975         kfree(mp);
4976 out_free_pmb:
4977         mempool_free(pmb, phba->mbox_mem_pool);
4978 }
4979
4980 /**
4981  * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
4982  * topology.
4983  * @phba: pointer to lpfc hba data structure.
4984  * @evt_code: asynchronous event code.
4985  * @speed_code: asynchronous event link speed code.
4986  *
4987  * This routine is to parse the giving SLI4 async event link speed code into
4988  * value of Read topology link speed.
4989  *
4990  * Return: link speed in terms of Read topology.
4991  **/
4992 static uint8_t
4993 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
4994 {
4995         uint8_t port_speed;
4996
4997         switch (speed_code) {
4998         case LPFC_FC_LA_SPEED_1G:
4999                 port_speed = LPFC_LINK_SPEED_1GHZ;
5000                 break;
5001         case LPFC_FC_LA_SPEED_2G:
5002                 port_speed = LPFC_LINK_SPEED_2GHZ;
5003                 break;
5004         case LPFC_FC_LA_SPEED_4G:
5005                 port_speed = LPFC_LINK_SPEED_4GHZ;
5006                 break;
5007         case LPFC_FC_LA_SPEED_8G:
5008                 port_speed = LPFC_LINK_SPEED_8GHZ;
5009                 break;
5010         case LPFC_FC_LA_SPEED_16G:
5011                 port_speed = LPFC_LINK_SPEED_16GHZ;
5012                 break;
5013         case LPFC_FC_LA_SPEED_32G:
5014                 port_speed = LPFC_LINK_SPEED_32GHZ;
5015                 break;
5016         case LPFC_FC_LA_SPEED_64G:
5017                 port_speed = LPFC_LINK_SPEED_64GHZ;
5018                 break;
5019         case LPFC_FC_LA_SPEED_128G:
5020                 port_speed = LPFC_LINK_SPEED_128GHZ;
5021                 break;
5022         case LPFC_FC_LA_SPEED_256G:
5023                 port_speed = LPFC_LINK_SPEED_256GHZ;
5024                 break;
5025         default:
5026                 port_speed = 0;
5027                 break;
5028         }
5029
5030         return port_speed;
5031 }
5032
5033 #define trunk_link_status(__idx)\
5034         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5035                ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
5036                 "Link up" : "Link down") : "NA"
5037 /* Did port __idx reported an error */
5038 #define trunk_port_fault(__idx)\
5039         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5040                (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
5041
5042 static void
5043 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
5044                               struct lpfc_acqe_fc_la *acqe_fc)
5045 {
5046         uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
5047         uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
5048
5049         phba->sli4_hba.link_state.speed =
5050                 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5051                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5052
5053         phba->sli4_hba.link_state.logical_speed =
5054                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5055         /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
5056         phba->fc_linkspeed =
5057                  lpfc_async_link_speed_to_read_top(
5058                                 phba,
5059                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5060
5061         if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
5062                 phba->trunk_link.link0.state =
5063                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
5064                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5065                 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
5066         }
5067         if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
5068                 phba->trunk_link.link1.state =
5069                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
5070                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5071                 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
5072         }
5073         if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
5074                 phba->trunk_link.link2.state =
5075                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
5076                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5077                 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
5078         }
5079         if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
5080                 phba->trunk_link.link3.state =
5081                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
5082                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5083                 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
5084         }
5085
5086         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5087                         "2910 Async FC Trunking Event - Speed:%d\n"
5088                         "\tLogical speed:%d "
5089                         "port0: %s port1: %s port2: %s port3: %s\n",
5090                         phba->sli4_hba.link_state.speed,
5091                         phba->sli4_hba.link_state.logical_speed,
5092                         trunk_link_status(0), trunk_link_status(1),
5093                         trunk_link_status(2), trunk_link_status(3));
5094
5095         if (port_fault)
5096                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5097                                 "3202 trunk error:0x%x (%s) seen on port0:%s "
5098                                 /*
5099                                  * SLI-4: We have only 0xA error codes
5100                                  * defined as of now. print an appropriate
5101                                  * message in case driver needs to be updated.
5102                                  */
5103                                 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
5104                                 "UNDEFINED. update driver." : trunk_errmsg[err],
5105                                 trunk_port_fault(0), trunk_port_fault(1),
5106                                 trunk_port_fault(2), trunk_port_fault(3));
5107 }
5108
5109
5110 /**
5111  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
5112  * @phba: pointer to lpfc hba data structure.
5113  * @acqe_fc: pointer to the async fc completion queue entry.
5114  *
5115  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
5116  * that the event was received and then issue a read_topology mailbox command so
5117  * that the rest of the driver will treat it the same as SLI3.
5118  **/
5119 static void
5120 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
5121 {
5122         struct lpfc_dmabuf *mp;
5123         LPFC_MBOXQ_t *pmb;
5124         MAILBOX_t *mb;
5125         struct lpfc_mbx_read_top *la;
5126         int rc;
5127
5128         if (bf_get(lpfc_trailer_type, acqe_fc) !=
5129             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
5130                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5131                                 "2895 Non FC link Event detected.(%d)\n",
5132                                 bf_get(lpfc_trailer_type, acqe_fc));
5133                 return;
5134         }
5135
5136         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5137             LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
5138                 lpfc_update_trunk_link_status(phba, acqe_fc);
5139                 return;
5140         }
5141
5142         /* Keep the link status for extra SLI4 state machine reference */
5143         phba->sli4_hba.link_state.speed =
5144                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5145                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5146         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
5147         phba->sli4_hba.link_state.topology =
5148                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
5149         phba->sli4_hba.link_state.status =
5150                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
5151         phba->sli4_hba.link_state.type =
5152                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
5153         phba->sli4_hba.link_state.number =
5154                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
5155         phba->sli4_hba.link_state.fault =
5156                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
5157
5158         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5159             LPFC_FC_LA_TYPE_LINK_DOWN)
5160                 phba->sli4_hba.link_state.logical_speed = 0;
5161         else if (!phba->sli4_hba.conf_trunk)
5162                 phba->sli4_hba.link_state.logical_speed =
5163                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5164
5165         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5166                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
5167                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
5168                         "%dMbps Fault:%d\n",
5169                         phba->sli4_hba.link_state.speed,
5170                         phba->sli4_hba.link_state.topology,
5171                         phba->sli4_hba.link_state.status,
5172                         phba->sli4_hba.link_state.type,
5173                         phba->sli4_hba.link_state.number,
5174                         phba->sli4_hba.link_state.logical_speed,
5175                         phba->sli4_hba.link_state.fault);
5176         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5177         if (!pmb) {
5178                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5179                                 "2897 The mboxq allocation failed\n");
5180                 return;
5181         }
5182         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5183         if (!mp) {
5184                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5185                                 "2898 The lpfc_dmabuf allocation failed\n");
5186                 goto out_free_pmb;
5187         }
5188         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5189         if (!mp->virt) {
5190                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5191                                 "2899 The mbuf allocation failed\n");
5192                 goto out_free_dmabuf;
5193         }
5194
5195         /* Cleanup any outstanding ELS commands */
5196         lpfc_els_flush_all_cmd(phba);
5197
5198         /* Block ELS IOCBs until we have done process link event */
5199         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5200
5201         /* Update link event statistics */
5202         phba->sli.slistat.link_event++;
5203
5204         /* Create lpfc_handle_latt mailbox command from link ACQE */
5205         lpfc_read_topology(phba, pmb, mp);
5206         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5207         pmb->vport = phba->pport;
5208
5209         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
5210                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
5211
5212                 switch (phba->sli4_hba.link_state.status) {
5213                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
5214                         phba->link_flag |= LS_MDS_LINK_DOWN;
5215                         break;
5216                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
5217                         phba->link_flag |= LS_MDS_LOOPBACK;
5218                         break;
5219                 default:
5220                         break;
5221                 }
5222
5223                 /* Initialize completion status */
5224                 mb = &pmb->u.mb;
5225                 mb->mbxStatus = MBX_SUCCESS;
5226
5227                 /* Parse port fault information field */
5228                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
5229
5230                 /* Parse and translate link attention fields */
5231                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
5232                 la->eventTag = acqe_fc->event_tag;
5233
5234                 if (phba->sli4_hba.link_state.status ==
5235                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
5236                         bf_set(lpfc_mbx_read_top_att_type, la,
5237                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
5238                 } else {
5239                         bf_set(lpfc_mbx_read_top_att_type, la,
5240                                LPFC_FC_LA_TYPE_LINK_DOWN);
5241                 }
5242                 /* Invoke the mailbox command callback function */
5243                 lpfc_mbx_cmpl_read_topology(phba, pmb);
5244
5245                 return;
5246         }
5247
5248         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5249         if (rc == MBX_NOT_FINISHED)
5250                 goto out_free_dmabuf;
5251         return;
5252
5253 out_free_dmabuf:
5254         kfree(mp);
5255 out_free_pmb:
5256         mempool_free(pmb, phba->mbox_mem_pool);
5257 }
5258
5259 /**
5260  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
5261  * @phba: pointer to lpfc hba data structure.
5262  * @acqe_fc: pointer to the async SLI completion queue entry.
5263  *
5264  * This routine is to handle the SLI4 asynchronous SLI events.
5265  **/
5266 static void
5267 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
5268 {
5269         char port_name;
5270         char message[128];
5271         uint8_t status;
5272         uint8_t evt_type;
5273         uint8_t operational = 0;
5274         struct temp_event temp_event_data;
5275         struct lpfc_acqe_misconfigured_event *misconfigured;
5276         struct Scsi_Host  *shost;
5277         struct lpfc_vport **vports;
5278         int rc, i;
5279
5280         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
5281
5282         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5283                         "2901 Async SLI event - Type:%d, Event Data: x%08x "
5284                         "x%08x x%08x x%08x\n", evt_type,
5285                         acqe_sli->event_data1, acqe_sli->event_data2,
5286                         acqe_sli->reserved, acqe_sli->trailer);
5287
5288         port_name = phba->Port[0];
5289         if (port_name == 0x00)
5290                 port_name = '?'; /* get port name is empty */
5291
5292         switch (evt_type) {
5293         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
5294                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5295                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
5296                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5297
5298                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5299                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
5300                                 acqe_sli->event_data1, port_name);
5301
5302                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
5303                 shost = lpfc_shost_from_vport(phba->pport);
5304                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5305                                           sizeof(temp_event_data),
5306                                           (char *)&temp_event_data,
5307                                           SCSI_NL_VID_TYPE_PCI
5308                                           | PCI_VENDOR_ID_EMULEX);
5309                 break;
5310         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
5311                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5312                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
5313                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5314
5315                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5316                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
5317                                 acqe_sli->event_data1, port_name);
5318
5319                 shost = lpfc_shost_from_vport(phba->pport);
5320                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5321                                           sizeof(temp_event_data),
5322                                           (char *)&temp_event_data,
5323                                           SCSI_NL_VID_TYPE_PCI
5324                                           | PCI_VENDOR_ID_EMULEX);
5325                 break;
5326         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
5327                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
5328                                         &acqe_sli->event_data1;
5329
5330                 /* fetch the status for this port */
5331                 switch (phba->sli4_hba.lnk_info.lnk_no) {
5332                 case LPFC_LINK_NUMBER_0:
5333                         status = bf_get(lpfc_sli_misconfigured_port0_state,
5334                                         &misconfigured->theEvent);
5335                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
5336                                         &misconfigured->theEvent);
5337                         break;
5338                 case LPFC_LINK_NUMBER_1:
5339                         status = bf_get(lpfc_sli_misconfigured_port1_state,
5340                                         &misconfigured->theEvent);
5341                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
5342                                         &misconfigured->theEvent);
5343                         break;
5344                 case LPFC_LINK_NUMBER_2:
5345                         status = bf_get(lpfc_sli_misconfigured_port2_state,
5346                                         &misconfigured->theEvent);
5347                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
5348                                         &misconfigured->theEvent);
5349                         break;
5350                 case LPFC_LINK_NUMBER_3:
5351                         status = bf_get(lpfc_sli_misconfigured_port3_state,
5352                                         &misconfigured->theEvent);
5353                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
5354                                         &misconfigured->theEvent);
5355                         break;
5356                 default:
5357                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5358                                         "3296 "
5359                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
5360                                         "event: Invalid link %d",
5361                                         phba->sli4_hba.lnk_info.lnk_no);
5362                         return;
5363                 }
5364
5365                 /* Skip if optic state unchanged */
5366                 if (phba->sli4_hba.lnk_info.optic_state == status)
5367                         return;
5368
5369                 switch (status) {
5370                 case LPFC_SLI_EVENT_STATUS_VALID:
5371                         sprintf(message, "Physical Link is functional");
5372                         break;
5373                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
5374                         sprintf(message, "Optics faulted/incorrectly "
5375                                 "installed/not installed - Reseat optics, "
5376                                 "if issue not resolved, replace.");
5377                         break;
5378                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
5379                         sprintf(message,
5380                                 "Optics of two types installed - Remove one "
5381                                 "optic or install matching pair of optics.");
5382                         break;
5383                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
5384                         sprintf(message, "Incompatible optics - Replace with "
5385                                 "compatible optics for card to function.");
5386                         break;
5387                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
5388                         sprintf(message, "Unqualified optics - Replace with "
5389                                 "Avago optics for Warranty and Technical "
5390                                 "Support - Link is%s operational",
5391                                 (operational) ? " not" : "");
5392                         break;
5393                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
5394                         sprintf(message, "Uncertified optics - Replace with "
5395                                 "Avago-certified optics to enable link "
5396                                 "operation - Link is%s operational",
5397                                 (operational) ? " not" : "");
5398                         break;
5399                 default:
5400                         /* firmware is reporting a status we don't know about */
5401                         sprintf(message, "Unknown event status x%02x", status);
5402                         break;
5403                 }
5404
5405                 /* Issue READ_CONFIG mbox command to refresh supported speeds */
5406                 rc = lpfc_sli4_read_config(phba);
5407                 if (rc) {
5408                         phba->lmt = 0;
5409                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5410                                         "3194 Unable to retrieve supported "
5411                                         "speeds, rc = 0x%x\n", rc);
5412                 }
5413                 vports = lpfc_create_vport_work_array(phba);
5414                 if (vports != NULL) {
5415                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5416                                         i++) {
5417                                 shost = lpfc_shost_from_vport(vports[i]);
5418                                 lpfc_host_supported_speeds_set(shost);
5419                         }
5420                 }
5421                 lpfc_destroy_vport_work_array(phba, vports);
5422
5423                 phba->sli4_hba.lnk_info.optic_state = status;
5424                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5425                                 "3176 Port Name %c %s\n", port_name, message);
5426                 break;
5427         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
5428                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5429                                 "3192 Remote DPort Test Initiated - "
5430                                 "Event Data1:x%08x Event Data2: x%08x\n",
5431                                 acqe_sli->event_data1, acqe_sli->event_data2);
5432                 break;
5433         case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN:
5434                 /* Misconfigured WWN. Reports that the SLI Port is configured
5435                  * to use FA-WWN, but the attached device doesn’t support it.
5436                  * No driver action is required.
5437                  * Event Data1 - N.A, Event Data2 - N.A
5438                  */
5439                 lpfc_log_msg(phba, KERN_WARNING, LOG_SLI,
5440                              "2699 Misconfigured FA-WWN - Attached device does "
5441                              "not support FA-WWN\n");
5442                 break;
5443         case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE:
5444                 /* EEPROM failure. No driver action is required */
5445                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5446                              "2518 EEPROM failure - "
5447                              "Event Data1: x%08x Event Data2: x%08x\n",
5448                              acqe_sli->event_data1, acqe_sli->event_data2);
5449                 break;
5450         default:
5451                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5452                                 "3193 Unrecognized SLI event, type: 0x%x",
5453                                 evt_type);
5454                 break;
5455         }
5456 }
5457
5458 /**
5459  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
5460  * @vport: pointer to vport data structure.
5461  *
5462  * This routine is to perform Clear Virtual Link (CVL) on a vport in
5463  * response to a CVL event.
5464  *
5465  * Return the pointer to the ndlp with the vport if successful, otherwise
5466  * return NULL.
5467  **/
5468 static struct lpfc_nodelist *
5469 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
5470 {
5471         struct lpfc_nodelist *ndlp;
5472         struct Scsi_Host *shost;
5473         struct lpfc_hba *phba;
5474
5475         if (!vport)
5476                 return NULL;
5477         phba = vport->phba;
5478         if (!phba)
5479                 return NULL;
5480         ndlp = lpfc_findnode_did(vport, Fabric_DID);
5481         if (!ndlp) {
5482                 /* Cannot find existing Fabric ndlp, so allocate a new one */
5483                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
5484                 if (!ndlp)
5485                         return 0;
5486                 /* Set the node type */
5487                 ndlp->nlp_type |= NLP_FABRIC;
5488                 /* Put ndlp onto node list */
5489                 lpfc_enqueue_node(vport, ndlp);
5490         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
5491                 /* re-setup ndlp without removing from node list */
5492                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
5493                 if (!ndlp)
5494                         return 0;
5495         }
5496         if ((phba->pport->port_state < LPFC_FLOGI) &&
5497                 (phba->pport->port_state != LPFC_VPORT_FAILED))
5498                 return NULL;
5499         /* If virtual link is not yet instantiated ignore CVL */
5500         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
5501                 && (vport->port_state != LPFC_VPORT_FAILED))
5502                 return NULL;
5503         shost = lpfc_shost_from_vport(vport);
5504         if (!shost)
5505                 return NULL;
5506         lpfc_linkdown_port(vport);
5507         lpfc_cleanup_pending_mbox(vport);
5508         spin_lock_irq(shost->host_lock);
5509         vport->fc_flag |= FC_VPORT_CVL_RCVD;
5510         spin_unlock_irq(shost->host_lock);
5511
5512         return ndlp;
5513 }
5514
5515 /**
5516  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
5517  * @vport: pointer to lpfc hba data structure.
5518  *
5519  * This routine is to perform Clear Virtual Link (CVL) on all vports in
5520  * response to a FCF dead event.
5521  **/
5522 static void
5523 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
5524 {
5525         struct lpfc_vport **vports;
5526         int i;
5527
5528         vports = lpfc_create_vport_work_array(phba);
5529         if (vports)
5530                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
5531                         lpfc_sli4_perform_vport_cvl(vports[i]);
5532         lpfc_destroy_vport_work_array(phba, vports);
5533 }
5534
5535 /**
5536  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
5537  * @phba: pointer to lpfc hba data structure.
5538  * @acqe_link: pointer to the async fcoe completion queue entry.
5539  *
5540  * This routine is to handle the SLI4 asynchronous fcoe event.
5541  **/
5542 static void
5543 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
5544                         struct lpfc_acqe_fip *acqe_fip)
5545 {
5546         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
5547         int rc;
5548         struct lpfc_vport *vport;
5549         struct lpfc_nodelist *ndlp;
5550         struct Scsi_Host  *shost;
5551         int active_vlink_present;
5552         struct lpfc_vport **vports;
5553         int i;
5554
5555         phba->fc_eventTag = acqe_fip->event_tag;
5556         phba->fcoe_eventtag = acqe_fip->event_tag;
5557         switch (event_type) {
5558         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
5559         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
5560                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
5561                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5562                                         LOG_DISCOVERY,
5563                                         "2546 New FCF event, evt_tag:x%x, "
5564                                         "index:x%x\n",
5565                                         acqe_fip->event_tag,
5566                                         acqe_fip->index);
5567                 else
5568                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
5569                                         LOG_DISCOVERY,
5570                                         "2788 FCF param modified event, "
5571                                         "evt_tag:x%x, index:x%x\n",
5572                                         acqe_fip->event_tag,
5573                                         acqe_fip->index);
5574                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5575                         /*
5576                          * During period of FCF discovery, read the FCF
5577                          * table record indexed by the event to update
5578                          * FCF roundrobin failover eligible FCF bmask.
5579                          */
5580                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5581                                         LOG_DISCOVERY,
5582                                         "2779 Read FCF (x%x) for updating "
5583                                         "roundrobin FCF failover bmask\n",
5584                                         acqe_fip->index);
5585                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
5586                 }
5587
5588                 /* If the FCF discovery is in progress, do nothing. */
5589                 spin_lock_irq(&phba->hbalock);
5590                 if (phba->hba_flag & FCF_TS_INPROG) {
5591                         spin_unlock_irq(&phba->hbalock);
5592                         break;
5593                 }
5594                 /* If fast FCF failover rescan event is pending, do nothing */
5595                 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
5596                         spin_unlock_irq(&phba->hbalock);
5597                         break;
5598                 }
5599
5600                 /* If the FCF has been in discovered state, do nothing. */
5601                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
5602                         spin_unlock_irq(&phba->hbalock);
5603                         break;
5604                 }
5605                 spin_unlock_irq(&phba->hbalock);
5606
5607                 /* Otherwise, scan the entire FCF table and re-discover SAN */
5608                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5609                                 "2770 Start FCF table scan per async FCF "
5610                                 "event, evt_tag:x%x, index:x%x\n",
5611                                 acqe_fip->event_tag, acqe_fip->index);
5612                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5613                                                      LPFC_FCOE_FCF_GET_FIRST);
5614                 if (rc)
5615                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5616                                         "2547 Issue FCF scan read FCF mailbox "
5617                                         "command failed (x%x)\n", rc);
5618                 break;
5619
5620         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5621                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5622                         "2548 FCF Table full count 0x%x tag 0x%x\n",
5623                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5624                         acqe_fip->event_tag);
5625                 break;
5626
5627         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5628                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5629                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5630                         "2549 FCF (x%x) disconnected from network, "
5631                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
5632                 /*
5633                  * If we are in the middle of FCF failover process, clear
5634                  * the corresponding FCF bit in the roundrobin bitmap.
5635                  */
5636                 spin_lock_irq(&phba->hbalock);
5637                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5638                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5639                         spin_unlock_irq(&phba->hbalock);
5640                         /* Update FLOGI FCF failover eligible FCF bmask */
5641                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5642                         break;
5643                 }
5644                 spin_unlock_irq(&phba->hbalock);
5645
5646                 /* If the event is not for currently used fcf do nothing */
5647                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5648                         break;
5649
5650                 /*
5651                  * Otherwise, request the port to rediscover the entire FCF
5652                  * table for a fast recovery from case that the current FCF
5653                  * is no longer valid as we are not in the middle of FCF
5654                  * failover process already.
5655                  */
5656                 spin_lock_irq(&phba->hbalock);
5657                 /* Mark the fast failover process in progress */
5658                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5659                 spin_unlock_irq(&phba->hbalock);
5660
5661                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5662                                 "2771 Start FCF fast failover process due to "
5663                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5664                                 "\n", acqe_fip->event_tag, acqe_fip->index);
5665                 rc = lpfc_sli4_redisc_fcf_table(phba);
5666                 if (rc) {
5667                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5668                                         LOG_DISCOVERY,
5669                                         "2772 Issue FCF rediscover mailbox "
5670                                         "command failed, fail through to FCF "
5671                                         "dead event\n");
5672                         spin_lock_irq(&phba->hbalock);
5673                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5674                         spin_unlock_irq(&phba->hbalock);
5675                         /*
5676                          * Last resort will fail over by treating this
5677                          * as a link down to FCF registration.
5678                          */
5679                         lpfc_sli4_fcf_dead_failthrough(phba);
5680                 } else {
5681                         /* Reset FCF roundrobin bmask for new discovery */
5682                         lpfc_sli4_clear_fcf_rr_bmask(phba);
5683                         /*
5684                          * Handling fast FCF failover to a DEAD FCF event is
5685                          * considered equalivant to receiving CVL to all vports.
5686                          */
5687                         lpfc_sli4_perform_all_vport_cvl(phba);
5688                 }
5689                 break;
5690         case LPFC_FIP_EVENT_TYPE_CVL:
5691                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5692                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5693                         "2718 Clear Virtual Link Received for VPI 0x%x"
5694                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5695
5696                 vport = lpfc_find_vport_by_vpid(phba,
5697                                                 acqe_fip->index);
5698                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
5699                 if (!ndlp)
5700                         break;
5701                 active_vlink_present = 0;
5702
5703                 vports = lpfc_create_vport_work_array(phba);
5704                 if (vports) {
5705                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5706                                         i++) {
5707                                 if ((!(vports[i]->fc_flag &
5708                                         FC_VPORT_CVL_RCVD)) &&
5709                                         (vports[i]->port_state > LPFC_FDISC)) {
5710                                         active_vlink_present = 1;
5711                                         break;
5712                                 }
5713                         }
5714                         lpfc_destroy_vport_work_array(phba, vports);
5715                 }
5716
5717                 /*
5718                  * Don't re-instantiate if vport is marked for deletion.
5719                  * If we are here first then vport_delete is going to wait
5720                  * for discovery to complete.
5721                  */
5722                 if (!(vport->load_flag & FC_UNLOADING) &&
5723                                         active_vlink_present) {
5724                         /*
5725                          * If there are other active VLinks present,
5726                          * re-instantiate the Vlink using FDISC.
5727                          */
5728                         mod_timer(&ndlp->nlp_delayfunc,
5729                                   jiffies + msecs_to_jiffies(1000));
5730                         shost = lpfc_shost_from_vport(vport);
5731                         spin_lock_irq(shost->host_lock);
5732                         ndlp->nlp_flag |= NLP_DELAY_TMO;
5733                         spin_unlock_irq(shost->host_lock);
5734                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5735                         vport->port_state = LPFC_FDISC;
5736                 } else {
5737                         /*
5738                          * Otherwise, we request port to rediscover
5739                          * the entire FCF table for a fast recovery
5740                          * from possible case that the current FCF
5741                          * is no longer valid if we are not already
5742                          * in the FCF failover process.
5743                          */
5744                         spin_lock_irq(&phba->hbalock);
5745                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5746                                 spin_unlock_irq(&phba->hbalock);
5747                                 break;
5748                         }
5749                         /* Mark the fast failover process in progress */
5750                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5751                         spin_unlock_irq(&phba->hbalock);
5752                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5753                                         LOG_DISCOVERY,
5754                                         "2773 Start FCF failover per CVL, "
5755                                         "evt_tag:x%x\n", acqe_fip->event_tag);
5756                         rc = lpfc_sli4_redisc_fcf_table(phba);
5757                         if (rc) {
5758                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5759                                                 LOG_DISCOVERY,
5760                                                 "2774 Issue FCF rediscover "
5761                                                 "mailbox command failed, "
5762                                                 "through to CVL event\n");
5763                                 spin_lock_irq(&phba->hbalock);
5764                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5765                                 spin_unlock_irq(&phba->hbalock);
5766                                 /*
5767                                  * Last resort will be re-try on the
5768                                  * the current registered FCF entry.
5769                                  */
5770                                 lpfc_retry_pport_discovery(phba);
5771                         } else
5772                                 /*
5773                                  * Reset FCF roundrobin bmask for new
5774                                  * discovery.
5775                                  */
5776                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
5777                 }
5778                 break;
5779         default:
5780                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5781                         "0288 Unknown FCoE event type 0x%x event tag "
5782                         "0x%x\n", event_type, acqe_fip->event_tag);
5783                 break;
5784         }
5785 }
5786
5787 /**
5788  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5789  * @phba: pointer to lpfc hba data structure.
5790  * @acqe_link: pointer to the async dcbx completion queue entry.
5791  *
5792  * This routine is to handle the SLI4 asynchronous dcbx event.
5793  **/
5794 static void
5795 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5796                          struct lpfc_acqe_dcbx *acqe_dcbx)
5797 {
5798         phba->fc_eventTag = acqe_dcbx->event_tag;
5799         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5800                         "0290 The SLI4 DCBX asynchronous event is not "
5801                         "handled yet\n");
5802 }
5803
5804 /**
5805  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5806  * @phba: pointer to lpfc hba data structure.
5807  * @acqe_link: pointer to the async grp5 completion queue entry.
5808  *
5809  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5810  * is an asynchronous notified of a logical link speed change.  The Port
5811  * reports the logical link speed in units of 10Mbps.
5812  **/
5813 static void
5814 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5815                          struct lpfc_acqe_grp5 *acqe_grp5)
5816 {
5817         uint16_t prev_ll_spd;
5818
5819         phba->fc_eventTag = acqe_grp5->event_tag;
5820         phba->fcoe_eventtag = acqe_grp5->event_tag;
5821         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5822         phba->sli4_hba.link_state.logical_speed =
5823                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5824         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5825                         "2789 GRP5 Async Event: Updating logical link speed "
5826                         "from %dMbps to %dMbps\n", prev_ll_spd,
5827                         phba->sli4_hba.link_state.logical_speed);
5828 }
5829
5830 /**
5831  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5832  * @phba: pointer to lpfc hba data structure.
5833  *
5834  * This routine is invoked by the worker thread to process all the pending
5835  * SLI4 asynchronous events.
5836  **/
5837 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5838 {
5839         struct lpfc_cq_event *cq_event;
5840
5841         /* First, declare the async event has been handled */
5842         spin_lock_irq(&phba->hbalock);
5843         phba->hba_flag &= ~ASYNC_EVENT;
5844         spin_unlock_irq(&phba->hbalock);
5845         /* Now, handle all the async events */
5846         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5847                 /* Get the first event from the head of the event queue */
5848                 spin_lock_irq(&phba->hbalock);
5849                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5850                                  cq_event, struct lpfc_cq_event, list);
5851                 spin_unlock_irq(&phba->hbalock);
5852                 /* Process the asynchronous event */
5853                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5854                 case LPFC_TRAILER_CODE_LINK:
5855                         lpfc_sli4_async_link_evt(phba,
5856                                                  &cq_event->cqe.acqe_link);
5857                         break;
5858                 case LPFC_TRAILER_CODE_FCOE:
5859                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5860                         break;
5861                 case LPFC_TRAILER_CODE_DCBX:
5862                         lpfc_sli4_async_dcbx_evt(phba,
5863                                                  &cq_event->cqe.acqe_dcbx);
5864                         break;
5865                 case LPFC_TRAILER_CODE_GRP5:
5866                         lpfc_sli4_async_grp5_evt(phba,
5867                                                  &cq_event->cqe.acqe_grp5);
5868                         break;
5869                 case LPFC_TRAILER_CODE_FC:
5870                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5871                         break;
5872                 case LPFC_TRAILER_CODE_SLI:
5873                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5874                         break;
5875                 default:
5876                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5877                                         "1804 Invalid asynchronous event code: "
5878                                         "x%x\n", bf_get(lpfc_trailer_code,
5879                                         &cq_event->cqe.mcqe_cmpl));
5880                         break;
5881                 }
5882                 /* Free the completion event processed to the free pool */
5883                 lpfc_sli4_cq_event_release(phba, cq_event);
5884         }
5885 }
5886
5887 /**
5888  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5889  * @phba: pointer to lpfc hba data structure.
5890  *
5891  * This routine is invoked by the worker thread to process FCF table
5892  * rediscovery pending completion event.
5893  **/
5894 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5895 {
5896         int rc;
5897
5898         spin_lock_irq(&phba->hbalock);
5899         /* Clear FCF rediscovery timeout event */
5900         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5901         /* Clear driver fast failover FCF record flag */
5902         phba->fcf.failover_rec.flag = 0;
5903         /* Set state for FCF fast failover */
5904         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5905         spin_unlock_irq(&phba->hbalock);
5906
5907         /* Scan FCF table from the first entry to re-discover SAN */
5908         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5909                         "2777 Start post-quiescent FCF table scan\n");
5910         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5911         if (rc)
5912                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5913                                 "2747 Issue FCF scan read FCF mailbox "
5914                                 "command failed 0x%x\n", rc);
5915 }
5916
5917 /**
5918  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5919  * @phba: pointer to lpfc hba data structure.
5920  * @dev_grp: The HBA PCI-Device group number.
5921  *
5922  * This routine is invoked to set up the per HBA PCI-Device group function
5923  * API jump table entries.
5924  *
5925  * Return: 0 if success, otherwise -ENODEV
5926  **/
5927 int
5928 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5929 {
5930         int rc;
5931
5932         /* Set up lpfc PCI-device group */
5933         phba->pci_dev_grp = dev_grp;
5934
5935         /* The LPFC_PCI_DEV_OC uses SLI4 */
5936         if (dev_grp == LPFC_PCI_DEV_OC)
5937                 phba->sli_rev = LPFC_SLI_REV4;
5938
5939         /* Set up device INIT API function jump table */
5940         rc = lpfc_init_api_table_setup(phba, dev_grp);
5941         if (rc)
5942                 return -ENODEV;
5943         /* Set up SCSI API function jump table */
5944         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5945         if (rc)
5946                 return -ENODEV;
5947         /* Set up SLI API function jump table */
5948         rc = lpfc_sli_api_table_setup(phba, dev_grp);
5949         if (rc)
5950                 return -ENODEV;
5951         /* Set up MBOX API function jump table */
5952         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5953         if (rc)
5954                 return -ENODEV;
5955
5956         return 0;
5957 }
5958
5959 /**
5960  * lpfc_log_intr_mode - Log the active interrupt mode
5961  * @phba: pointer to lpfc hba data structure.
5962  * @intr_mode: active interrupt mode adopted.
5963  *
5964  * This routine it invoked to log the currently used active interrupt mode
5965  * to the device.
5966  **/
5967 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5968 {
5969         switch (intr_mode) {
5970         case 0:
5971                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5972                                 "0470 Enable INTx interrupt mode.\n");
5973                 break;
5974         case 1:
5975                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5976                                 "0481 Enabled MSI interrupt mode.\n");
5977                 break;
5978         case 2:
5979                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5980                                 "0480 Enabled MSI-X interrupt mode.\n");
5981                 break;
5982         default:
5983                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5984                                 "0482 Illegal interrupt mode.\n");
5985                 break;
5986         }
5987         return;
5988 }
5989
5990 /**
5991  * lpfc_cpumask_of_node_init - initalizes cpumask of phba's NUMA node
5992  * @phba: Pointer to HBA context object.
5993  *
5994  **/
5995 static void
5996 lpfc_cpumask_of_node_init(struct lpfc_hba *phba)
5997 {
5998         unsigned int cpu, numa_node;
5999         struct cpumask *numa_mask = &phba->sli4_hba.numa_mask;
6000
6001         cpumask_clear(numa_mask);
6002
6003         /* Check if we're a NUMA architecture */
6004         numa_node = dev_to_node(&phba->pcidev->dev);
6005         if (numa_node == NUMA_NO_NODE)
6006                 return;
6007
6008         for_each_possible_cpu(cpu)
6009                 if (cpu_to_node(cpu) == numa_node)
6010                         cpumask_set_cpu(cpu, numa_mask);
6011 }
6012
6013 /**
6014  * lpfc_enable_pci_dev - Enable a generic PCI device.
6015  * @phba: pointer to lpfc hba data structure.
6016  *
6017  * This routine is invoked to enable the PCI device that is common to all
6018  * PCI devices.
6019  *
6020  * Return codes
6021  *      0 - successful
6022  *      other values - error
6023  **/
6024 static int
6025 lpfc_enable_pci_dev(struct lpfc_hba *phba)
6026 {
6027         struct pci_dev *pdev;
6028
6029         /* Obtain PCI device reference */
6030         if (!phba->pcidev)
6031                 goto out_error;
6032         else
6033                 pdev = phba->pcidev;
6034         /* Enable PCI device */
6035         if (pci_enable_device_mem(pdev))
6036                 goto out_error;
6037         /* Request PCI resource for the device */
6038         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
6039                 goto out_disable_device;
6040         /* Set up device as PCI master and save state for EEH */
6041         pci_set_master(pdev);
6042         pci_try_set_mwi(pdev);
6043         pci_save_state(pdev);
6044
6045         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
6046         if (pci_is_pcie(pdev))
6047                 pdev->needs_freset = 1;
6048
6049         return 0;
6050
6051 out_disable_device:
6052         pci_disable_device(pdev);
6053 out_error:
6054         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6055                         "1401 Failed to enable pci device\n");
6056         return -ENODEV;
6057 }
6058
6059 /**
6060  * lpfc_disable_pci_dev - Disable a generic PCI device.
6061  * @phba: pointer to lpfc hba data structure.
6062  *
6063  * This routine is invoked to disable the PCI device that is common to all
6064  * PCI devices.
6065  **/
6066 static void
6067 lpfc_disable_pci_dev(struct lpfc_hba *phba)
6068 {
6069         struct pci_dev *pdev;
6070
6071         /* Obtain PCI device reference */
6072         if (!phba->pcidev)
6073                 return;
6074         else
6075                 pdev = phba->pcidev;
6076         /* Release PCI resource and disable PCI device */
6077         pci_release_mem_regions(pdev);
6078         pci_disable_device(pdev);
6079
6080         return;
6081 }
6082
6083 /**
6084  * lpfc_reset_hba - Reset a hba
6085  * @phba: pointer to lpfc hba data structure.
6086  *
6087  * This routine is invoked to reset a hba device. It brings the HBA
6088  * offline, performs a board restart, and then brings the board back
6089  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
6090  * on outstanding mailbox commands.
6091  **/
6092 void
6093 lpfc_reset_hba(struct lpfc_hba *phba)
6094 {
6095         /* If resets are disabled then set error state and return. */
6096         if (!phba->cfg_enable_hba_reset) {
6097                 phba->link_state = LPFC_HBA_ERROR;
6098                 return;
6099         }
6100         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
6101                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
6102         else
6103                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
6104         lpfc_offline(phba);
6105         lpfc_sli_brdrestart(phba);
6106         lpfc_online(phba);
6107         lpfc_unblock_mgmt_io(phba);
6108 }
6109
6110 /**
6111  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
6112  * @phba: pointer to lpfc hba data structure.
6113  *
6114  * This function enables the PCI SR-IOV virtual functions to a physical
6115  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6116  * enable the number of virtual functions to the physical function. As
6117  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6118  * API call does not considered as an error condition for most of the device.
6119  **/
6120 uint16_t
6121 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
6122 {
6123         struct pci_dev *pdev = phba->pcidev;
6124         uint16_t nr_virtfn;
6125         int pos;
6126
6127         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
6128         if (pos == 0)
6129                 return 0;
6130
6131         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
6132         return nr_virtfn;
6133 }
6134
6135 /**
6136  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
6137  * @phba: pointer to lpfc hba data structure.
6138  * @nr_vfn: number of virtual functions to be enabled.
6139  *
6140  * This function enables the PCI SR-IOV virtual functions to a physical
6141  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6142  * enable the number of virtual functions to the physical function. As
6143  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6144  * API call does not considered as an error condition for most of the device.
6145  **/
6146 int
6147 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
6148 {
6149         struct pci_dev *pdev = phba->pcidev;
6150         uint16_t max_nr_vfn;
6151         int rc;
6152
6153         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
6154         if (nr_vfn > max_nr_vfn) {
6155                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6156                                 "3057 Requested vfs (%d) greater than "
6157                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
6158                 return -EINVAL;
6159         }
6160
6161         rc = pci_enable_sriov(pdev, nr_vfn);
6162         if (rc) {
6163                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6164                                 "2806 Failed to enable sriov on this device "
6165                                 "with vfn number nr_vf:%d, rc:%d\n",
6166                                 nr_vfn, rc);
6167         } else
6168                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6169                                 "2807 Successful enable sriov on this device "
6170                                 "with vfn number nr_vf:%d\n", nr_vfn);
6171         return rc;
6172 }
6173
6174 /**
6175  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
6176  * @phba: pointer to lpfc hba data structure.
6177  *
6178  * This routine is invoked to set up the driver internal resources before the
6179  * device specific resource setup to support the HBA device it attached to.
6180  *
6181  * Return codes
6182  *      0 - successful
6183  *      other values - error
6184  **/
6185 static int
6186 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
6187 {
6188         struct lpfc_sli *psli = &phba->sli;
6189
6190         /*
6191          * Driver resources common to all SLI revisions
6192          */
6193         atomic_set(&phba->fast_event_count, 0);
6194         spin_lock_init(&phba->hbalock);
6195
6196         /* Initialize ndlp management spinlock */
6197         spin_lock_init(&phba->ndlp_lock);
6198
6199         /* Initialize port_list spinlock */
6200         spin_lock_init(&phba->port_list_lock);
6201         INIT_LIST_HEAD(&phba->port_list);
6202
6203         INIT_LIST_HEAD(&phba->work_list);
6204         init_waitqueue_head(&phba->wait_4_mlo_m_q);
6205
6206         /* Initialize the wait queue head for the kernel thread */
6207         init_waitqueue_head(&phba->work_waitq);
6208
6209         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6210                         "1403 Protocols supported %s %s %s\n",
6211                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
6212                                 "SCSI" : " "),
6213                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
6214                                 "NVME" : " "),
6215                         (phba->nvmet_support ? "NVMET" : " "));
6216
6217         /* Initialize the IO buffer list used by driver for SLI3 SCSI */
6218         spin_lock_init(&phba->scsi_buf_list_get_lock);
6219         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
6220         spin_lock_init(&phba->scsi_buf_list_put_lock);
6221         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
6222
6223         /* Initialize the fabric iocb list */
6224         INIT_LIST_HEAD(&phba->fabric_iocb_list);
6225
6226         /* Initialize list to save ELS buffers */
6227         INIT_LIST_HEAD(&phba->elsbuf);
6228
6229         /* Initialize FCF connection rec list */
6230         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
6231
6232         /* Initialize OAS configuration list */
6233         spin_lock_init(&phba->devicelock);
6234         INIT_LIST_HEAD(&phba->luns);
6235
6236         /* MBOX heartbeat timer */
6237         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
6238         /* Fabric block timer */
6239         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
6240         /* EA polling mode timer */
6241         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
6242         /* Heartbeat timer */
6243         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
6244
6245         INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
6246
6247         return 0;
6248 }
6249
6250 /**
6251  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
6252  * @phba: pointer to lpfc hba data structure.
6253  *
6254  * This routine is invoked to set up the driver internal resources specific to
6255  * support the SLI-3 HBA device it attached to.
6256  *
6257  * Return codes
6258  * 0 - successful
6259  * other values - error
6260  **/
6261 static int
6262 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
6263 {
6264         int rc, entry_sz;
6265
6266         /*
6267          * Initialize timers used by driver
6268          */
6269
6270         /* FCP polling mode timer */
6271         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
6272
6273         /* Host attention work mask setup */
6274         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
6275         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
6276
6277         /* Get all the module params for configuring this host */
6278         lpfc_get_cfgparam(phba);
6279         /* Set up phase-1 common device driver resources */
6280
6281         rc = lpfc_setup_driver_resource_phase1(phba);
6282         if (rc)
6283                 return -ENODEV;
6284
6285         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
6286                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
6287                 /* check for menlo minimum sg count */
6288                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
6289                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
6290         }
6291
6292         if (!phba->sli.sli3_ring)
6293                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
6294                                               sizeof(struct lpfc_sli_ring),
6295                                               GFP_KERNEL);
6296         if (!phba->sli.sli3_ring)
6297                 return -ENOMEM;
6298
6299         /*
6300          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
6301          * used to create the sg_dma_buf_pool must be dynamically calculated.
6302          */
6303
6304         /* Initialize the host templates the configured values. */
6305         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
6306         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
6307         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
6308
6309         if (phba->sli_rev == LPFC_SLI_REV4)
6310                 entry_sz = sizeof(struct sli4_sge);
6311         else
6312                 entry_sz = sizeof(struct ulp_bde64);
6313
6314         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
6315         if (phba->cfg_enable_bg) {
6316                 /*
6317                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
6318                  * the FCP rsp, and a BDE for each. Sice we have no control
6319                  * over how many protection data segments the SCSI Layer
6320                  * will hand us (ie: there could be one for every block
6321                  * in the IO), we just allocate enough BDEs to accomidate
6322                  * our max amount and we need to limit lpfc_sg_seg_cnt to
6323                  * minimize the risk of running out.
6324                  */
6325                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6326                         sizeof(struct fcp_rsp) +
6327                         (LPFC_MAX_SG_SEG_CNT * entry_sz);
6328
6329                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
6330                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
6331
6332                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
6333                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
6334         } else {
6335                 /*
6336                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
6337                  * the FCP rsp, a BDE for each, and a BDE for up to
6338                  * cfg_sg_seg_cnt data segments.
6339                  */
6340                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6341                         sizeof(struct fcp_rsp) +
6342                         ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
6343
6344                 /* Total BDEs in BPL for scsi_sg_list */
6345                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
6346         }
6347
6348         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6349                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
6350                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6351                         phba->cfg_total_seg_cnt);
6352
6353         phba->max_vpi = LPFC_MAX_VPI;
6354         /* This will be set to correct value after config_port mbox */
6355         phba->max_vports = 0;
6356
6357         /*
6358          * Initialize the SLI Layer to run with lpfc HBAs.
6359          */
6360         lpfc_sli_setup(phba);
6361         lpfc_sli_queue_init(phba);
6362
6363         /* Allocate device driver memory */
6364         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
6365                 return -ENOMEM;
6366
6367         phba->lpfc_sg_dma_buf_pool =
6368                 dma_pool_create("lpfc_sg_dma_buf_pool",
6369                                 &phba->pcidev->dev, phba->cfg_sg_dma_buf_size,
6370                                 BPL_ALIGN_SZ, 0);
6371
6372         if (!phba->lpfc_sg_dma_buf_pool)
6373                 goto fail_free_mem;
6374
6375         phba->lpfc_cmd_rsp_buf_pool =
6376                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
6377                                         &phba->pcidev->dev,
6378                                         sizeof(struct fcp_cmnd) +
6379                                         sizeof(struct fcp_rsp),
6380                                         BPL_ALIGN_SZ, 0);
6381
6382         if (!phba->lpfc_cmd_rsp_buf_pool)
6383                 goto fail_free_dma_buf_pool;
6384
6385         /*
6386          * Enable sr-iov virtual functions if supported and configured
6387          * through the module parameter.
6388          */
6389         if (phba->cfg_sriov_nr_virtfn > 0) {
6390                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6391                                                  phba->cfg_sriov_nr_virtfn);
6392                 if (rc) {
6393                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6394                                         "2808 Requested number of SR-IOV "
6395                                         "virtual functions (%d) is not "
6396                                         "supported\n",
6397                                         phba->cfg_sriov_nr_virtfn);
6398                         phba->cfg_sriov_nr_virtfn = 0;
6399                 }
6400         }
6401
6402         return 0;
6403
6404 fail_free_dma_buf_pool:
6405         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
6406         phba->lpfc_sg_dma_buf_pool = NULL;
6407 fail_free_mem:
6408         lpfc_mem_free(phba);
6409         return -ENOMEM;
6410 }
6411
6412 /**
6413  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
6414  * @phba: pointer to lpfc hba data structure.
6415  *
6416  * This routine is invoked to unset the driver internal resources set up
6417  * specific for supporting the SLI-3 HBA device it attached to.
6418  **/
6419 static void
6420 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
6421 {
6422         /* Free device driver memory allocated */
6423         lpfc_mem_free_all(phba);
6424
6425         return;
6426 }
6427
6428 /**
6429  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
6430  * @phba: pointer to lpfc hba data structure.
6431  *
6432  * This routine is invoked to set up the driver internal resources specific to
6433  * support the SLI-4 HBA device it attached to.
6434  *
6435  * Return codes
6436  *      0 - successful
6437  *      other values - error
6438  **/
6439 static int
6440 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
6441 {
6442         LPFC_MBOXQ_t *mboxq;
6443         MAILBOX_t *mb;
6444         int rc, i, max_buf_size;
6445         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
6446         struct lpfc_mqe *mqe;
6447         int longs;
6448         int extra;
6449         uint64_t wwn;
6450         u32 if_type;
6451         u32 if_fam;
6452
6453         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
6454         phba->sli4_hba.num_possible_cpu = cpumask_last(cpu_possible_mask) + 1;
6455         phba->sli4_hba.curr_disp_cpu = 0;
6456         lpfc_cpumask_of_node_init(phba);
6457
6458         /* Get all the module params for configuring this host */
6459         lpfc_get_cfgparam(phba);
6460
6461         /* Set up phase-1 common device driver resources */
6462         rc = lpfc_setup_driver_resource_phase1(phba);
6463         if (rc)
6464                 return -ENODEV;
6465
6466         /* Before proceed, wait for POST done and device ready */
6467         rc = lpfc_sli4_post_status_check(phba);
6468         if (rc)
6469                 return -ENODEV;
6470
6471         /* Allocate all driver workqueues here */
6472
6473         /* The lpfc_wq workqueue for deferred irq use */
6474         phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
6475
6476         /*
6477          * Initialize timers used by driver
6478          */
6479
6480         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
6481
6482         /* FCF rediscover timer */
6483         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
6484
6485         /*
6486          * Control structure for handling external multi-buffer mailbox
6487          * command pass-through.
6488          */
6489         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
6490                 sizeof(struct lpfc_mbox_ext_buf_ctx));
6491         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
6492
6493         phba->max_vpi = LPFC_MAX_VPI;
6494
6495         /* This will be set to correct value after the read_config mbox */
6496         phba->max_vports = 0;
6497
6498         /* Program the default value of vlan_id and fc_map */
6499         phba->valid_vlan = 0;
6500         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
6501         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
6502         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
6503
6504         /*
6505          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
6506          * we will associate a new ring, for each EQ/CQ/WQ tuple.
6507          * The WQ create will allocate the ring.
6508          */
6509
6510         /* Initialize buffer queue management fields */
6511         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
6512         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
6513         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
6514
6515         /*
6516          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
6517          */
6518         /* Initialize the Abort buffer list used by driver */
6519         spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock);
6520         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_io_buf_list);
6521
6522         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6523                 /* Initialize the Abort nvme buffer list used by driver */
6524                 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
6525                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6526                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
6527                 spin_lock_init(&phba->sli4_hba.t_active_list_lock);
6528                 INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list);
6529         }
6530
6531         /* This abort list used by worker thread */
6532         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
6533         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
6534
6535         /*
6536          * Initialize driver internal slow-path work queues
6537          */
6538
6539         /* Driver internel slow-path CQ Event pool */
6540         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
6541         /* Response IOCB work queue list */
6542         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
6543         /* Asynchronous event CQ Event work queue list */
6544         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
6545         /* Fast-path XRI aborted CQ Event work queue list */
6546         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
6547         /* Slow-path XRI aborted CQ Event work queue list */
6548         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
6549         /* Receive queue CQ Event work queue list */
6550         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
6551
6552         /* Initialize extent block lists. */
6553         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
6554         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
6555         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
6556         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
6557
6558         /* Initialize mboxq lists. If the early init routines fail
6559          * these lists need to be correctly initialized.
6560          */
6561         INIT_LIST_HEAD(&phba->sli.mboxq);
6562         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
6563
6564         /* initialize optic_state to 0xFF */
6565         phba->sli4_hba.lnk_info.optic_state = 0xff;
6566
6567         /* Allocate device driver memory */
6568         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
6569         if (rc)
6570                 return -ENOMEM;
6571
6572         /* IF Type 2 ports get initialized now. */
6573         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
6574             LPFC_SLI_INTF_IF_TYPE_2) {
6575                 rc = lpfc_pci_function_reset(phba);
6576                 if (unlikely(rc)) {
6577                         rc = -ENODEV;
6578                         goto out_free_mem;
6579                 }
6580                 phba->temp_sensor_support = 1;
6581         }
6582
6583         /* Create the bootstrap mailbox command */
6584         rc = lpfc_create_bootstrap_mbox(phba);
6585         if (unlikely(rc))
6586                 goto out_free_mem;
6587
6588         /* Set up the host's endian order with the device. */
6589         rc = lpfc_setup_endian_order(phba);
6590         if (unlikely(rc))
6591                 goto out_free_bsmbx;
6592
6593         /* Set up the hba's configuration parameters. */
6594         rc = lpfc_sli4_read_config(phba);
6595         if (unlikely(rc))
6596                 goto out_free_bsmbx;
6597         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6598         if (unlikely(rc))
6599                 goto out_free_bsmbx;
6600
6601         /* IF Type 0 ports get initialized now. */
6602         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6603             LPFC_SLI_INTF_IF_TYPE_0) {
6604                 rc = lpfc_pci_function_reset(phba);
6605                 if (unlikely(rc))
6606                         goto out_free_bsmbx;
6607         }
6608
6609         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6610                                                        GFP_KERNEL);
6611         if (!mboxq) {
6612                 rc = -ENOMEM;
6613                 goto out_free_bsmbx;
6614         }
6615
6616         /* Check for NVMET being configured */
6617         phba->nvmet_support = 0;
6618         if (lpfc_enable_nvmet_cnt) {
6619
6620                 /* First get WWN of HBA instance */
6621                 lpfc_read_nv(phba, mboxq);
6622                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6623                 if (rc != MBX_SUCCESS) {
6624                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6625                                         "6016 Mailbox failed , mbxCmd x%x "
6626                                         "READ_NV, mbxStatus x%x\n",
6627                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6628                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6629                         mempool_free(mboxq, phba->mbox_mem_pool);
6630                         rc = -EIO;
6631                         goto out_free_bsmbx;
6632                 }
6633                 mb = &mboxq->u.mb;
6634                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6635                        sizeof(uint64_t));
6636                 wwn = cpu_to_be64(wwn);
6637                 phba->sli4_hba.wwnn.u.name = wwn;
6638                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6639                        sizeof(uint64_t));
6640                 /* wwn is WWPN of HBA instance */
6641                 wwn = cpu_to_be64(wwn);
6642                 phba->sli4_hba.wwpn.u.name = wwn;
6643
6644                 /* Check to see if it matches any module parameter */
6645                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6646                         if (wwn == lpfc_enable_nvmet[i]) {
6647 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6648                                 if (lpfc_nvmet_mem_alloc(phba))
6649                                         break;
6650
6651                                 phba->nvmet_support = 1; /* a match */
6652
6653                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6654                                                 "6017 NVME Target %016llx\n",
6655                                                 wwn);
6656 #else
6657                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6658                                                 "6021 Can't enable NVME Target."
6659                                                 " NVME_TARGET_FC infrastructure"
6660                                                 " is not in kernel\n");
6661 #endif
6662                                 /* Not supported for NVMET */
6663                                 phba->cfg_xri_rebalancing = 0;
6664                                 break;
6665                         }
6666                 }
6667         }
6668
6669         lpfc_nvme_mod_param_dep(phba);
6670
6671         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
6672         lpfc_supported_pages(mboxq);
6673         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6674         if (!rc) {
6675                 mqe = &mboxq->u.mqe;
6676                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
6677                        LPFC_MAX_SUPPORTED_PAGES);
6678                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
6679                         switch (pn_page[i]) {
6680                         case LPFC_SLI4_PARAMETERS:
6681                                 phba->sli4_hba.pc_sli4_params.supported = 1;
6682                                 break;
6683                         default:
6684                                 break;
6685                         }
6686                 }
6687                 /* Read the port's SLI4 Parameters capabilities if supported. */
6688                 if (phba->sli4_hba.pc_sli4_params.supported)
6689                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
6690                 if (rc) {
6691                         mempool_free(mboxq, phba->mbox_mem_pool);
6692                         rc = -EIO;
6693                         goto out_free_bsmbx;
6694                 }
6695         }
6696
6697         /*
6698          * Get sli4 parameters that override parameters from Port capabilities.
6699          * If this call fails, it isn't critical unless the SLI4 parameters come
6700          * back in conflict.
6701          */
6702         rc = lpfc_get_sli4_parameters(phba, mboxq);
6703         if (rc) {
6704                 if_type = bf_get(lpfc_sli_intf_if_type,
6705                                  &phba->sli4_hba.sli_intf);
6706                 if_fam = bf_get(lpfc_sli_intf_sli_family,
6707                                 &phba->sli4_hba.sli_intf);
6708                 if (phba->sli4_hba.extents_in_use &&
6709                     phba->sli4_hba.rpi_hdrs_in_use) {
6710                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6711                                 "2999 Unsupported SLI4 Parameters "
6712                                 "Extents and RPI headers enabled.\n");
6713                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6714                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
6715                                 mempool_free(mboxq, phba->mbox_mem_pool);
6716                                 rc = -EIO;
6717                                 goto out_free_bsmbx;
6718                         }
6719                 }
6720                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6721                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
6722                         mempool_free(mboxq, phba->mbox_mem_pool);
6723                         rc = -EIO;
6724                         goto out_free_bsmbx;
6725                 }
6726         }
6727
6728         /*
6729          * 1 for cmd, 1 for rsp, NVME adds an extra one
6730          * for boundary conditions in its max_sgl_segment template.
6731          */
6732         extra = 2;
6733         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
6734                 extra++;
6735
6736         /*
6737          * It doesn't matter what family our adapter is in, we are
6738          * limited to 2 Pages, 512 SGEs, for our SGL.
6739          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
6740          */
6741         max_buf_size = (2 * SLI4_PAGE_SIZE);
6742
6743         /*
6744          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
6745          * used to create the sg_dma_buf_pool must be calculated.
6746          */
6747         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
6748                 /* Both cfg_enable_bg and cfg_external_dif code paths */
6749
6750                 /*
6751                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
6752                  * the FCP rsp, and a SGE. Sice we have no control
6753                  * over how many protection segments the SCSI Layer
6754                  * will hand us (ie: there could be one for every block
6755                  * in the IO), just allocate enough SGEs to accomidate
6756                  * our max amount and we need to limit lpfc_sg_seg_cnt
6757                  * to minimize the risk of running out.
6758                  */
6759                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6760                                 sizeof(struct fcp_rsp) + max_buf_size;
6761
6762                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
6763                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
6764
6765                 /*
6766                  * If supporting DIF, reduce the seg count for scsi to
6767                  * allow room for the DIF sges.
6768                  */
6769                 if (phba->cfg_enable_bg &&
6770                     phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
6771                         phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
6772                 else
6773                         phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6774
6775         } else {
6776                 /*
6777                  * The scsi_buf for a regular I/O holds the FCP cmnd,
6778                  * the FCP rsp, a SGE for each, and a SGE for up to
6779                  * cfg_sg_seg_cnt data segments.
6780                  */
6781                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6782                                 sizeof(struct fcp_rsp) +
6783                                 ((phba->cfg_sg_seg_cnt + extra) *
6784                                 sizeof(struct sli4_sge));
6785
6786                 /* Total SGEs for scsi_sg_list */
6787                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
6788                 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6789
6790                 /*
6791                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
6792                  * need to post 1 page for the SGL.
6793                  */
6794         }
6795
6796         if (phba->cfg_xpsgl && !phba->nvmet_support)
6797                 phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE;
6798         else if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
6799                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
6800         else
6801                 phba->cfg_sg_dma_buf_size =
6802                                 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
6803
6804         phba->border_sge_num = phba->cfg_sg_dma_buf_size /
6805                                sizeof(struct sli4_sge);
6806
6807         /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
6808         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6809                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
6810                         lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
6811                                         "6300 Reducing NVME sg segment "
6812                                         "cnt to %d\n",
6813                                         LPFC_MAX_NVME_SEG_CNT);
6814                         phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
6815                 } else
6816                         phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
6817         }
6818
6819         /* Initialize the host templates with the updated values. */
6820         lpfc_vport_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6821         lpfc_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6822         lpfc_template_no_hr.sg_tablesize = phba->cfg_scsi_seg_cnt;
6823
6824         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6825                         "9087 sg_seg_cnt:%d dmabuf_size:%d "
6826                         "total:%d scsi:%d nvme:%d\n",
6827                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6828                         phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
6829                         phba->cfg_nvme_seg_cnt);
6830
6831         if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE)
6832                 i = phba->cfg_sg_dma_buf_size;
6833         else
6834                 i = SLI4_PAGE_SIZE;
6835
6836         phba->lpfc_sg_dma_buf_pool =
6837                         dma_pool_create("lpfc_sg_dma_buf_pool",
6838                                         &phba->pcidev->dev,
6839                                         phba->cfg_sg_dma_buf_size,
6840                                         i, 0);
6841         if (!phba->lpfc_sg_dma_buf_pool)
6842                 goto out_free_bsmbx;
6843
6844         phba->lpfc_cmd_rsp_buf_pool =
6845                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
6846                                         &phba->pcidev->dev,
6847                                         sizeof(struct fcp_cmnd) +
6848                                         sizeof(struct fcp_rsp),
6849                                         i, 0);
6850         if (!phba->lpfc_cmd_rsp_buf_pool)
6851                 goto out_free_sg_dma_buf;
6852
6853         mempool_free(mboxq, phba->mbox_mem_pool);
6854
6855         /* Verify OAS is supported */
6856         lpfc_sli4_oas_verify(phba);
6857
6858         /* Verify RAS support on adapter */
6859         lpfc_sli4_ras_init(phba);
6860
6861         /* Verify all the SLI4 queues */
6862         rc = lpfc_sli4_queue_verify(phba);
6863         if (rc)
6864                 goto out_free_cmd_rsp_buf;
6865
6866         /* Create driver internal CQE event pool */
6867         rc = lpfc_sli4_cq_event_pool_create(phba);
6868         if (rc)
6869                 goto out_free_cmd_rsp_buf;
6870
6871         /* Initialize sgl lists per host */
6872         lpfc_init_sgl_list(phba);
6873
6874         /* Allocate and initialize active sgl array */
6875         rc = lpfc_init_active_sgl_array(phba);
6876         if (rc) {
6877                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6878                                 "1430 Failed to initialize sgl list.\n");
6879                 goto out_destroy_cq_event_pool;
6880         }
6881         rc = lpfc_sli4_init_rpi_hdrs(phba);
6882         if (rc) {
6883                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6884                                 "1432 Failed to initialize rpi headers.\n");
6885                 goto out_free_active_sgl;
6886         }
6887
6888         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6889         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6890         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
6891                                          GFP_KERNEL);
6892         if (!phba->fcf.fcf_rr_bmask) {
6893                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6894                                 "2759 Failed allocate memory for FCF round "
6895                                 "robin failover bmask\n");
6896                 rc = -ENOMEM;
6897                 goto out_remove_rpi_hdrs;
6898         }
6899
6900         phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
6901                                             sizeof(struct lpfc_hba_eq_hdl),
6902                                             GFP_KERNEL);
6903         if (!phba->sli4_hba.hba_eq_hdl) {
6904                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6905                                 "2572 Failed allocate memory for "
6906                                 "fast-path per-EQ handle array\n");
6907                 rc = -ENOMEM;
6908                 goto out_free_fcf_rr_bmask;
6909         }
6910
6911         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
6912                                         sizeof(struct lpfc_vector_map_info),
6913                                         GFP_KERNEL);
6914         if (!phba->sli4_hba.cpu_map) {
6915                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6916                                 "3327 Failed allocate memory for msi-x "
6917                                 "interrupt vector mapping\n");
6918                 rc = -ENOMEM;
6919                 goto out_free_hba_eq_hdl;
6920         }
6921
6922         phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
6923         if (!phba->sli4_hba.eq_info) {
6924                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6925                                 "3321 Failed allocation for per_cpu stats\n");
6926                 rc = -ENOMEM;
6927                 goto out_free_hba_cpu_map;
6928         }
6929         /*
6930          * Enable sr-iov virtual functions if supported and configured
6931          * through the module parameter.
6932          */
6933         if (phba->cfg_sriov_nr_virtfn > 0) {
6934                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6935                                                  phba->cfg_sriov_nr_virtfn);
6936                 if (rc) {
6937                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6938                                         "3020 Requested number of SR-IOV "
6939                                         "virtual functions (%d) is not "
6940                                         "supported\n",
6941                                         phba->cfg_sriov_nr_virtfn);
6942                         phba->cfg_sriov_nr_virtfn = 0;
6943                 }
6944         }
6945
6946         return 0;
6947
6948 out_free_hba_cpu_map:
6949         kfree(phba->sli4_hba.cpu_map);
6950 out_free_hba_eq_hdl:
6951         kfree(phba->sli4_hba.hba_eq_hdl);
6952 out_free_fcf_rr_bmask:
6953         kfree(phba->fcf.fcf_rr_bmask);
6954 out_remove_rpi_hdrs:
6955         lpfc_sli4_remove_rpi_hdrs(phba);
6956 out_free_active_sgl:
6957         lpfc_free_active_sgl(phba);
6958 out_destroy_cq_event_pool:
6959         lpfc_sli4_cq_event_pool_destroy(phba);
6960 out_free_cmd_rsp_buf:
6961         dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool);
6962         phba->lpfc_cmd_rsp_buf_pool = NULL;
6963 out_free_sg_dma_buf:
6964         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
6965         phba->lpfc_sg_dma_buf_pool = NULL;
6966 out_free_bsmbx:
6967         lpfc_destroy_bootstrap_mbox(phba);
6968 out_free_mem:
6969         lpfc_mem_free(phba);
6970         return rc;
6971 }
6972
6973 /**
6974  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6975  * @phba: pointer to lpfc hba data structure.
6976  *
6977  * This routine is invoked to unset the driver internal resources set up
6978  * specific for supporting the SLI-4 HBA device it attached to.
6979  **/
6980 static void
6981 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6982 {
6983         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6984
6985         free_percpu(phba->sli4_hba.eq_info);
6986
6987         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6988         kfree(phba->sli4_hba.cpu_map);
6989         phba->sli4_hba.num_possible_cpu = 0;
6990         phba->sli4_hba.num_present_cpu = 0;
6991         phba->sli4_hba.curr_disp_cpu = 0;
6992         cpumask_clear(&phba->sli4_hba.numa_mask);
6993
6994         /* Free memory allocated for fast-path work queue handles */
6995         kfree(phba->sli4_hba.hba_eq_hdl);
6996
6997         /* Free the allocated rpi headers. */
6998         lpfc_sli4_remove_rpi_hdrs(phba);
6999         lpfc_sli4_remove_rpis(phba);
7000
7001         /* Free eligible FCF index bmask */
7002         kfree(phba->fcf.fcf_rr_bmask);
7003
7004         /* Free the ELS sgl list */
7005         lpfc_free_active_sgl(phba);
7006         lpfc_free_els_sgl_list(phba);
7007         lpfc_free_nvmet_sgl_list(phba);
7008
7009         /* Free the completion queue EQ event pool */
7010         lpfc_sli4_cq_event_release_all(phba);
7011         lpfc_sli4_cq_event_pool_destroy(phba);
7012
7013         /* Release resource identifiers. */
7014         lpfc_sli4_dealloc_resource_identifiers(phba);
7015
7016         /* Free the bsmbx region. */
7017         lpfc_destroy_bootstrap_mbox(phba);
7018
7019         /* Free the SLI Layer memory with SLI4 HBAs */
7020         lpfc_mem_free_all(phba);
7021
7022         /* Free the current connect table */
7023         list_for_each_entry_safe(conn_entry, next_conn_entry,
7024                 &phba->fcf_conn_rec_list, list) {
7025                 list_del_init(&conn_entry->list);
7026                 kfree(conn_entry);
7027         }
7028
7029         return;
7030 }
7031
7032 /**
7033  * lpfc_init_api_table_setup - Set up init api function jump table
7034  * @phba: The hba struct for which this call is being executed.
7035  * @dev_grp: The HBA PCI-Device group number.
7036  *
7037  * This routine sets up the device INIT interface API function jump table
7038  * in @phba struct.
7039  *
7040  * Returns: 0 - success, -ENODEV - failure.
7041  **/
7042 int
7043 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7044 {
7045         phba->lpfc_hba_init_link = lpfc_hba_init_link;
7046         phba->lpfc_hba_down_link = lpfc_hba_down_link;
7047         phba->lpfc_selective_reset = lpfc_selective_reset;
7048         switch (dev_grp) {
7049         case LPFC_PCI_DEV_LP:
7050                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
7051                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
7052                 phba->lpfc_stop_port = lpfc_stop_port_s3;
7053                 break;
7054         case LPFC_PCI_DEV_OC:
7055                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
7056                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
7057                 phba->lpfc_stop_port = lpfc_stop_port_s4;
7058                 break;
7059         default:
7060                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7061                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
7062                                 dev_grp);
7063                 return -ENODEV;
7064                 break;
7065         }
7066         return 0;
7067 }
7068
7069 /**
7070  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
7071  * @phba: pointer to lpfc hba data structure.
7072  *
7073  * This routine is invoked to set up the driver internal resources after the
7074  * device specific resource setup to support the HBA device it attached to.
7075  *
7076  * Return codes
7077  *      0 - successful
7078  *      other values - error
7079  **/
7080 static int
7081 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
7082 {
7083         int error;
7084
7085         /* Startup the kernel thread for this host adapter. */
7086         phba->worker_thread = kthread_run(lpfc_do_work, phba,
7087                                           "lpfc_worker_%d", phba->brd_no);
7088         if (IS_ERR(phba->worker_thread)) {
7089                 error = PTR_ERR(phba->worker_thread);
7090                 return error;
7091         }
7092
7093         return 0;
7094 }
7095
7096 /**
7097  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
7098  * @phba: pointer to lpfc hba data structure.
7099  *
7100  * This routine is invoked to unset the driver internal resources set up after
7101  * the device specific resource setup for supporting the HBA device it
7102  * attached to.
7103  **/
7104 static void
7105 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
7106 {
7107         if (phba->wq) {
7108                 flush_workqueue(phba->wq);
7109                 destroy_workqueue(phba->wq);
7110                 phba->wq = NULL;
7111         }
7112
7113         /* Stop kernel worker thread */
7114         if (phba->worker_thread)
7115                 kthread_stop(phba->worker_thread);
7116 }
7117
7118 /**
7119  * lpfc_free_iocb_list - Free iocb list.
7120  * @phba: pointer to lpfc hba data structure.
7121  *
7122  * This routine is invoked to free the driver's IOCB list and memory.
7123  **/
7124 void
7125 lpfc_free_iocb_list(struct lpfc_hba *phba)
7126 {
7127         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
7128
7129         spin_lock_irq(&phba->hbalock);
7130         list_for_each_entry_safe(iocbq_entry, iocbq_next,
7131                                  &phba->lpfc_iocb_list, list) {
7132                 list_del(&iocbq_entry->list);
7133                 kfree(iocbq_entry);
7134                 phba->total_iocbq_bufs--;
7135         }
7136         spin_unlock_irq(&phba->hbalock);
7137
7138         return;
7139 }
7140
7141 /**
7142  * lpfc_init_iocb_list - Allocate and initialize iocb list.
7143  * @phba: pointer to lpfc hba data structure.
7144  *
7145  * This routine is invoked to allocate and initizlize the driver's IOCB
7146  * list and set up the IOCB tag array accordingly.
7147  *
7148  * Return codes
7149  *      0 - successful
7150  *      other values - error
7151  **/
7152 int
7153 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
7154 {
7155         struct lpfc_iocbq *iocbq_entry = NULL;
7156         uint16_t iotag;
7157         int i;
7158
7159         /* Initialize and populate the iocb list per host.  */
7160         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
7161         for (i = 0; i < iocb_count; i++) {
7162                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
7163                 if (iocbq_entry == NULL) {
7164                         printk(KERN_ERR "%s: only allocated %d iocbs of "
7165                                 "expected %d count. Unloading driver.\n",
7166                                 __func__, i, iocb_count);
7167                         goto out_free_iocbq;
7168                 }
7169
7170                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
7171                 if (iotag == 0) {
7172                         kfree(iocbq_entry);
7173                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
7174                                 "Unloading driver.\n", __func__);
7175                         goto out_free_iocbq;
7176                 }
7177                 iocbq_entry->sli4_lxritag = NO_XRI;
7178                 iocbq_entry->sli4_xritag = NO_XRI;
7179
7180                 spin_lock_irq(&phba->hbalock);
7181                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
7182                 phba->total_iocbq_bufs++;
7183                 spin_unlock_irq(&phba->hbalock);
7184         }
7185
7186         return 0;
7187
7188 out_free_iocbq:
7189         lpfc_free_iocb_list(phba);
7190
7191         return -ENOMEM;
7192 }
7193
7194 /**
7195  * lpfc_free_sgl_list - Free a given sgl list.
7196  * @phba: pointer to lpfc hba data structure.
7197  * @sglq_list: pointer to the head of sgl list.
7198  *
7199  * This routine is invoked to free a give sgl list and memory.
7200  **/
7201 void
7202 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
7203 {
7204         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7205
7206         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
7207                 list_del(&sglq_entry->list);
7208                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
7209                 kfree(sglq_entry);
7210         }
7211 }
7212
7213 /**
7214  * lpfc_free_els_sgl_list - Free els sgl list.
7215  * @phba: pointer to lpfc hba data structure.
7216  *
7217  * This routine is invoked to free the driver's els sgl list and memory.
7218  **/
7219 static void
7220 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
7221 {
7222         LIST_HEAD(sglq_list);
7223
7224         /* Retrieve all els sgls from driver list */
7225         spin_lock_irq(&phba->hbalock);
7226         spin_lock(&phba->sli4_hba.sgl_list_lock);
7227         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
7228         spin_unlock(&phba->sli4_hba.sgl_list_lock);
7229         spin_unlock_irq(&phba->hbalock);
7230
7231         /* Now free the sgl list */
7232         lpfc_free_sgl_list(phba, &sglq_list);
7233 }
7234
7235 /**
7236  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
7237  * @phba: pointer to lpfc hba data structure.
7238  *
7239  * This routine is invoked to free the driver's nvmet sgl list and memory.
7240  **/
7241 static void
7242 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
7243 {
7244         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7245         LIST_HEAD(sglq_list);
7246
7247         /* Retrieve all nvmet sgls from driver list */
7248         spin_lock_irq(&phba->hbalock);
7249         spin_lock(&phba->sli4_hba.sgl_list_lock);
7250         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
7251         spin_unlock(&phba->sli4_hba.sgl_list_lock);
7252         spin_unlock_irq(&phba->hbalock);
7253
7254         /* Now free the sgl list */
7255         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
7256                 list_del(&sglq_entry->list);
7257                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
7258                 kfree(sglq_entry);
7259         }
7260
7261         /* Update the nvmet_xri_cnt to reflect no current sgls.
7262          * The next initialization cycle sets the count and allocates
7263          * the sgls over again.
7264          */
7265         phba->sli4_hba.nvmet_xri_cnt = 0;
7266 }
7267
7268 /**
7269  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
7270  * @phba: pointer to lpfc hba data structure.
7271  *
7272  * This routine is invoked to allocate the driver's active sgl memory.
7273  * This array will hold the sglq_entry's for active IOs.
7274  **/
7275 static int
7276 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
7277 {
7278         int size;
7279         size = sizeof(struct lpfc_sglq *);
7280         size *= phba->sli4_hba.max_cfg_param.max_xri;
7281
7282         phba->sli4_hba.lpfc_sglq_active_list =
7283                 kzalloc(size, GFP_KERNEL);
7284         if (!phba->sli4_hba.lpfc_sglq_active_list)
7285                 return -ENOMEM;
7286         return 0;
7287 }
7288
7289 /**
7290  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
7291  * @phba: pointer to lpfc hba data structure.
7292  *
7293  * This routine is invoked to walk through the array of active sglq entries
7294  * and free all of the resources.
7295  * This is just a place holder for now.
7296  **/
7297 static void
7298 lpfc_free_active_sgl(struct lpfc_hba *phba)
7299 {
7300         kfree(phba->sli4_hba.lpfc_sglq_active_list);
7301 }
7302
7303 /**
7304  * lpfc_init_sgl_list - Allocate and initialize sgl list.
7305  * @phba: pointer to lpfc hba data structure.
7306  *
7307  * This routine is invoked to allocate and initizlize the driver's sgl
7308  * list and set up the sgl xritag tag array accordingly.
7309  *
7310  **/
7311 static void
7312 lpfc_init_sgl_list(struct lpfc_hba *phba)
7313 {
7314         /* Initialize and populate the sglq list per host/VF. */
7315         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
7316         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7317         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
7318         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
7319
7320         /* els xri-sgl book keeping */
7321         phba->sli4_hba.els_xri_cnt = 0;
7322
7323         /* nvme xri-buffer book keeping */
7324         phba->sli4_hba.io_xri_cnt = 0;
7325 }
7326
7327 /**
7328  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
7329  * @phba: pointer to lpfc hba data structure.
7330  *
7331  * This routine is invoked to post rpi header templates to the
7332  * port for those SLI4 ports that do not support extents.  This routine
7333  * posts a PAGE_SIZE memory region to the port to hold up to
7334  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
7335  * and should be called only when interrupts are disabled.
7336  *
7337  * Return codes
7338  *      0 - successful
7339  *      -ERROR - otherwise.
7340  **/
7341 int
7342 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
7343 {
7344         int rc = 0;
7345         struct lpfc_rpi_hdr *rpi_hdr;
7346
7347         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
7348         if (!phba->sli4_hba.rpi_hdrs_in_use)
7349                 return rc;
7350         if (phba->sli4_hba.extents_in_use)
7351                 return -EIO;
7352
7353         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
7354         if (!rpi_hdr) {
7355                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7356                                 "0391 Error during rpi post operation\n");
7357                 lpfc_sli4_remove_rpis(phba);
7358                 rc = -ENODEV;
7359         }
7360
7361         return rc;
7362 }
7363
7364 /**
7365  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
7366  * @phba: pointer to lpfc hba data structure.
7367  *
7368  * This routine is invoked to allocate a single 4KB memory region to
7369  * support rpis and stores them in the phba.  This single region
7370  * provides support for up to 64 rpis.  The region is used globally
7371  * by the device.
7372  *
7373  * Returns:
7374  *   A valid rpi hdr on success.
7375  *   A NULL pointer on any failure.
7376  **/
7377 struct lpfc_rpi_hdr *
7378 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
7379 {
7380         uint16_t rpi_limit, curr_rpi_range;
7381         struct lpfc_dmabuf *dmabuf;
7382         struct lpfc_rpi_hdr *rpi_hdr;
7383
7384         /*
7385          * If the SLI4 port supports extents, posting the rpi header isn't
7386          * required.  Set the expected maximum count and let the actual value
7387          * get set when extents are fully allocated.
7388          */
7389         if (!phba->sli4_hba.rpi_hdrs_in_use)
7390                 return NULL;
7391         if (phba->sli4_hba.extents_in_use)
7392                 return NULL;
7393
7394         /* The limit on the logical index is just the max_rpi count. */
7395         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
7396
7397         spin_lock_irq(&phba->hbalock);
7398         /*
7399          * Establish the starting RPI in this header block.  The starting
7400          * rpi is normalized to a zero base because the physical rpi is
7401          * port based.
7402          */
7403         curr_rpi_range = phba->sli4_hba.next_rpi;
7404         spin_unlock_irq(&phba->hbalock);
7405
7406         /* Reached full RPI range */
7407         if (curr_rpi_range == rpi_limit)
7408                 return NULL;
7409
7410         /*
7411          * First allocate the protocol header region for the port.  The
7412          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
7413          */
7414         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7415         if (!dmabuf)
7416                 return NULL;
7417
7418         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
7419                                           LPFC_HDR_TEMPLATE_SIZE,
7420                                           &dmabuf->phys, GFP_KERNEL);
7421         if (!dmabuf->virt) {
7422                 rpi_hdr = NULL;
7423                 goto err_free_dmabuf;
7424         }
7425
7426         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
7427                 rpi_hdr = NULL;
7428                 goto err_free_coherent;
7429         }
7430
7431         /* Save the rpi header data for cleanup later. */
7432         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
7433         if (!rpi_hdr)
7434                 goto err_free_coherent;
7435
7436         rpi_hdr->dmabuf = dmabuf;
7437         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
7438         rpi_hdr->page_count = 1;
7439         spin_lock_irq(&phba->hbalock);
7440
7441         /* The rpi_hdr stores the logical index only. */
7442         rpi_hdr->start_rpi = curr_rpi_range;
7443         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
7444         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
7445
7446         spin_unlock_irq(&phba->hbalock);
7447         return rpi_hdr;
7448
7449  err_free_coherent:
7450         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
7451                           dmabuf->virt, dmabuf->phys);
7452  err_free_dmabuf:
7453         kfree(dmabuf);
7454         return NULL;
7455 }
7456
7457 /**
7458  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
7459  * @phba: pointer to lpfc hba data structure.
7460  *
7461  * This routine is invoked to remove all memory resources allocated
7462  * to support rpis for SLI4 ports not supporting extents. This routine
7463  * presumes the caller has released all rpis consumed by fabric or port
7464  * logins and is prepared to have the header pages removed.
7465  **/
7466 void
7467 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
7468 {
7469         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
7470
7471         if (!phba->sli4_hba.rpi_hdrs_in_use)
7472                 goto exit;
7473
7474         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
7475                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
7476                 list_del(&rpi_hdr->list);
7477                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
7478                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
7479                 kfree(rpi_hdr->dmabuf);
7480                 kfree(rpi_hdr);
7481         }
7482  exit:
7483         /* There are no rpis available to the port now. */
7484         phba->sli4_hba.next_rpi = 0;
7485 }
7486
7487 /**
7488  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
7489  * @pdev: pointer to pci device data structure.
7490  *
7491  * This routine is invoked to allocate the driver hba data structure for an
7492  * HBA device. If the allocation is successful, the phba reference to the
7493  * PCI device data structure is set.
7494  *
7495  * Return codes
7496  *      pointer to @phba - successful
7497  *      NULL - error
7498  **/
7499 static struct lpfc_hba *
7500 lpfc_hba_alloc(struct pci_dev *pdev)
7501 {
7502         struct lpfc_hba *phba;
7503
7504         /* Allocate memory for HBA structure */
7505         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
7506         if (!phba) {
7507                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
7508                 return NULL;
7509         }
7510
7511         /* Set reference to PCI device in HBA structure */
7512         phba->pcidev = pdev;
7513
7514         /* Assign an unused board number */
7515         phba->brd_no = lpfc_get_instance();
7516         if (phba->brd_no < 0) {
7517                 kfree(phba);
7518                 return NULL;
7519         }
7520         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
7521
7522         spin_lock_init(&phba->ct_ev_lock);
7523         INIT_LIST_HEAD(&phba->ct_ev_waiters);
7524
7525         return phba;
7526 }
7527
7528 /**
7529  * lpfc_hba_free - Free driver hba data structure with a device.
7530  * @phba: pointer to lpfc hba data structure.
7531  *
7532  * This routine is invoked to free the driver hba data structure with an
7533  * HBA device.
7534  **/
7535 static void
7536 lpfc_hba_free(struct lpfc_hba *phba)
7537 {
7538         if (phba->sli_rev == LPFC_SLI_REV4)
7539                 kfree(phba->sli4_hba.hdwq);
7540
7541         /* Release the driver assigned board number */
7542         idr_remove(&lpfc_hba_index, phba->brd_no);
7543
7544         /* Free memory allocated with sli3 rings */
7545         kfree(phba->sli.sli3_ring);
7546         phba->sli.sli3_ring = NULL;
7547
7548         kfree(phba);
7549         return;
7550 }
7551
7552 /**
7553  * lpfc_create_shost - Create hba physical port with associated scsi host.
7554  * @phba: pointer to lpfc hba data structure.
7555  *
7556  * This routine is invoked to create HBA physical port and associate a SCSI
7557  * host with it.
7558  *
7559  * Return codes
7560  *      0 - successful
7561  *      other values - error
7562  **/
7563 static int
7564 lpfc_create_shost(struct lpfc_hba *phba)
7565 {
7566         struct lpfc_vport *vport;
7567         struct Scsi_Host  *shost;
7568
7569         /* Initialize HBA FC structure */
7570         phba->fc_edtov = FF_DEF_EDTOV;
7571         phba->fc_ratov = FF_DEF_RATOV;
7572         phba->fc_altov = FF_DEF_ALTOV;
7573         phba->fc_arbtov = FF_DEF_ARBTOV;
7574
7575         atomic_set(&phba->sdev_cnt, 0);
7576         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
7577         if (!vport)
7578                 return -ENODEV;
7579
7580         shost = lpfc_shost_from_vport(vport);
7581         phba->pport = vport;
7582
7583         if (phba->nvmet_support) {
7584                 /* Only 1 vport (pport) will support NVME target */
7585                 phba->targetport = NULL;
7586                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
7587                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME_DISC,
7588                                 "6076 NVME Target Found\n");
7589         }
7590
7591         lpfc_debugfs_initialize(vport);
7592         /* Put reference to SCSI host to driver's device private data */
7593         pci_set_drvdata(phba->pcidev, shost);
7594
7595         /*
7596          * At this point we are fully registered with PSA. In addition,
7597          * any initial discovery should be completed.
7598          */
7599         vport->load_flag |= FC_ALLOW_FDMI;
7600         if (phba->cfg_enable_SmartSAN ||
7601             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
7602
7603                 /* Setup appropriate attribute masks */
7604                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
7605                 if (phba->cfg_enable_SmartSAN)
7606                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
7607                 else
7608                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
7609         }
7610         return 0;
7611 }
7612
7613 /**
7614  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
7615  * @phba: pointer to lpfc hba data structure.
7616  *
7617  * This routine is invoked to destroy HBA physical port and the associated
7618  * SCSI host.
7619  **/
7620 static void
7621 lpfc_destroy_shost(struct lpfc_hba *phba)
7622 {
7623         struct lpfc_vport *vport = phba->pport;
7624
7625         /* Destroy physical port that associated with the SCSI host */
7626         destroy_port(vport);
7627
7628         return;
7629 }
7630
7631 /**
7632  * lpfc_setup_bg - Setup Block guard structures and debug areas.
7633  * @phba: pointer to lpfc hba data structure.
7634  * @shost: the shost to be used to detect Block guard settings.
7635  *
7636  * This routine sets up the local Block guard protocol settings for @shost.
7637  * This routine also allocates memory for debugging bg buffers.
7638  **/
7639 static void
7640 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
7641 {
7642         uint32_t old_mask;
7643         uint32_t old_guard;
7644
7645         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7646                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7647                                 "1478 Registering BlockGuard with the "
7648                                 "SCSI layer\n");
7649
7650                 old_mask = phba->cfg_prot_mask;
7651                 old_guard = phba->cfg_prot_guard;
7652
7653                 /* Only allow supported values */
7654                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
7655                         SHOST_DIX_TYPE0_PROTECTION |
7656                         SHOST_DIX_TYPE1_PROTECTION);
7657                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
7658                                          SHOST_DIX_GUARD_CRC);
7659
7660                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
7661                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
7662                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
7663
7664                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7665                         if ((old_mask != phba->cfg_prot_mask) ||
7666                                 (old_guard != phba->cfg_prot_guard))
7667                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7668                                         "1475 Registering BlockGuard with the "
7669                                         "SCSI layer: mask %d  guard %d\n",
7670                                         phba->cfg_prot_mask,
7671                                         phba->cfg_prot_guard);
7672
7673                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
7674                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
7675                 } else
7676                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7677                                 "1479 Not Registering BlockGuard with the SCSI "
7678                                 "layer, Bad protection parameters: %d %d\n",
7679                                 old_mask, old_guard);
7680         }
7681 }
7682
7683 /**
7684  * lpfc_post_init_setup - Perform necessary device post initialization setup.
7685  * @phba: pointer to lpfc hba data structure.
7686  *
7687  * This routine is invoked to perform all the necessary post initialization
7688  * setup for the device.
7689  **/
7690 static void
7691 lpfc_post_init_setup(struct lpfc_hba *phba)
7692 {
7693         struct Scsi_Host  *shost;
7694         struct lpfc_adapter_event_header adapter_event;
7695
7696         /* Get the default values for Model Name and Description */
7697         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7698
7699         /*
7700          * hba setup may have changed the hba_queue_depth so we need to
7701          * adjust the value of can_queue.
7702          */
7703         shost = pci_get_drvdata(phba->pcidev);
7704         shost->can_queue = phba->cfg_hba_queue_depth - 10;
7705
7706         lpfc_host_attrib_init(shost);
7707
7708         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7709                 spin_lock_irq(shost->host_lock);
7710                 lpfc_poll_start_timer(phba);
7711                 spin_unlock_irq(shost->host_lock);
7712         }
7713
7714         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7715                         "0428 Perform SCSI scan\n");
7716         /* Send board arrival event to upper layer */
7717         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7718         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7719         fc_host_post_vendor_event(shost, fc_get_event_number(),
7720                                   sizeof(adapter_event),
7721                                   (char *) &adapter_event,
7722                                   LPFC_NL_VENDOR_ID);
7723         return;
7724 }
7725
7726 /**
7727  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7728  * @phba: pointer to lpfc hba data structure.
7729  *
7730  * This routine is invoked to set up the PCI device memory space for device
7731  * with SLI-3 interface spec.
7732  *
7733  * Return codes
7734  *      0 - successful
7735  *      other values - error
7736  **/
7737 static int
7738 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7739 {
7740         struct pci_dev *pdev = phba->pcidev;
7741         unsigned long bar0map_len, bar2map_len;
7742         int i, hbq_count;
7743         void *ptr;
7744         int error;
7745
7746         if (!pdev)
7747                 return -ENODEV;
7748
7749         /* Set the device DMA mask size */
7750         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
7751         if (error)
7752                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
7753         if (error)
7754                 return error;
7755         error = -ENODEV;
7756
7757         /* Get the bus address of Bar0 and Bar2 and the number of bytes
7758          * required by each mapping.
7759          */
7760         phba->pci_bar0_map = pci_resource_start(pdev, 0);
7761         bar0map_len = pci_resource_len(pdev, 0);
7762
7763         phba->pci_bar2_map = pci_resource_start(pdev, 2);
7764         bar2map_len = pci_resource_len(pdev, 2);
7765
7766         /* Map HBA SLIM to a kernel virtual address. */
7767         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7768         if (!phba->slim_memmap_p) {
7769                 dev_printk(KERN_ERR, &pdev->dev,
7770                            "ioremap failed for SLIM memory.\n");
7771                 goto out;
7772         }
7773
7774         /* Map HBA Control Registers to a kernel virtual address. */
7775         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7776         if (!phba->ctrl_regs_memmap_p) {
7777                 dev_printk(KERN_ERR, &pdev->dev,
7778                            "ioremap failed for HBA control registers.\n");
7779                 goto out_iounmap_slim;
7780         }
7781
7782         /* Allocate memory for SLI-2 structures */
7783         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7784                                                &phba->slim2p.phys, GFP_KERNEL);
7785         if (!phba->slim2p.virt)
7786                 goto out_iounmap;
7787
7788         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7789         phba->mbox_ext = (phba->slim2p.virt +
7790                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7791         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7792         phba->IOCBs = (phba->slim2p.virt +
7793                        offsetof(struct lpfc_sli2_slim, IOCBs));
7794
7795         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7796                                                  lpfc_sli_hbq_size(),
7797                                                  &phba->hbqslimp.phys,
7798                                                  GFP_KERNEL);
7799         if (!phba->hbqslimp.virt)
7800                 goto out_free_slim;
7801
7802         hbq_count = lpfc_sli_hbq_count();
7803         ptr = phba->hbqslimp.virt;
7804         for (i = 0; i < hbq_count; ++i) {
7805                 phba->hbqs[i].hbq_virt = ptr;
7806                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7807                 ptr += (lpfc_hbq_defs[i]->entry_count *
7808                         sizeof(struct lpfc_hbq_entry));
7809         }
7810         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7811         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7812
7813         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7814
7815         phba->MBslimaddr = phba->slim_memmap_p;
7816         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7817         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7818         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7819         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7820
7821         return 0;
7822
7823 out_free_slim:
7824         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7825                           phba->slim2p.virt, phba->slim2p.phys);
7826 out_iounmap:
7827         iounmap(phba->ctrl_regs_memmap_p);
7828 out_iounmap_slim:
7829         iounmap(phba->slim_memmap_p);
7830 out:
7831         return error;
7832 }
7833
7834 /**
7835  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7836  * @phba: pointer to lpfc hba data structure.
7837  *
7838  * This routine is invoked to unset the PCI device memory space for device
7839  * with SLI-3 interface spec.
7840  **/
7841 static void
7842 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7843 {
7844         struct pci_dev *pdev;
7845
7846         /* Obtain PCI device reference */
7847         if (!phba->pcidev)
7848                 return;
7849         else
7850                 pdev = phba->pcidev;
7851
7852         /* Free coherent DMA memory allocated */
7853         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7854                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7855         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7856                           phba->slim2p.virt, phba->slim2p.phys);
7857
7858         /* I/O memory unmap */
7859         iounmap(phba->ctrl_regs_memmap_p);
7860         iounmap(phba->slim_memmap_p);
7861
7862         return;
7863 }
7864
7865 /**
7866  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7867  * @phba: pointer to lpfc hba data structure.
7868  *
7869  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7870  * done and check status.
7871  *
7872  * Return 0 if successful, otherwise -ENODEV.
7873  **/
7874 int
7875 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7876 {
7877         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7878         struct lpfc_register reg_data;
7879         int i, port_error = 0;
7880         uint32_t if_type;
7881
7882         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7883         memset(&reg_data, 0, sizeof(reg_data));
7884         if (!phba->sli4_hba.PSMPHRregaddr)
7885                 return -ENODEV;
7886
7887         /* Wait up to 30 seconds for the SLI Port POST done and ready */
7888         for (i = 0; i < 3000; i++) {
7889                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7890                         &portsmphr_reg.word0) ||
7891                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7892                         /* Port has a fatal POST error, break out */
7893                         port_error = -ENODEV;
7894                         break;
7895                 }
7896                 if (LPFC_POST_STAGE_PORT_READY ==
7897                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7898                         break;
7899                 msleep(10);
7900         }
7901
7902         /*
7903          * If there was a port error during POST, then don't proceed with
7904          * other register reads as the data may not be valid.  Just exit.
7905          */
7906         if (port_error) {
7907                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7908                         "1408 Port Failed POST - portsmphr=0x%x, "
7909                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7910                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7911                         portsmphr_reg.word0,
7912                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7913                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7914                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7915                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7916                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7917                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7918                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7919                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7920         } else {
7921                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7922                                 "2534 Device Info: SLIFamily=0x%x, "
7923                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7924                                 "SLIHint_2=0x%x, FT=0x%x\n",
7925                                 bf_get(lpfc_sli_intf_sli_family,
7926                                        &phba->sli4_hba.sli_intf),
7927                                 bf_get(lpfc_sli_intf_slirev,
7928                                        &phba->sli4_hba.sli_intf),
7929                                 bf_get(lpfc_sli_intf_if_type,
7930                                        &phba->sli4_hba.sli_intf),
7931                                 bf_get(lpfc_sli_intf_sli_hint1,
7932                                        &phba->sli4_hba.sli_intf),
7933                                 bf_get(lpfc_sli_intf_sli_hint2,
7934                                        &phba->sli4_hba.sli_intf),
7935                                 bf_get(lpfc_sli_intf_func_type,
7936                                        &phba->sli4_hba.sli_intf));
7937                 /*
7938                  * Check for other Port errors during the initialization
7939                  * process.  Fail the load if the port did not come up
7940                  * correctly.
7941                  */
7942                 if_type = bf_get(lpfc_sli_intf_if_type,
7943                                  &phba->sli4_hba.sli_intf);
7944                 switch (if_type) {
7945                 case LPFC_SLI_INTF_IF_TYPE_0:
7946                         phba->sli4_hba.ue_mask_lo =
7947                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7948                         phba->sli4_hba.ue_mask_hi =
7949                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7950                         uerrlo_reg.word0 =
7951                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7952                         uerrhi_reg.word0 =
7953                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7954                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7955                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7956                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7957                                                 "1422 Unrecoverable Error "
7958                                                 "Detected during POST "
7959                                                 "uerr_lo_reg=0x%x, "
7960                                                 "uerr_hi_reg=0x%x, "
7961                                                 "ue_mask_lo_reg=0x%x, "
7962                                                 "ue_mask_hi_reg=0x%x\n",
7963                                                 uerrlo_reg.word0,
7964                                                 uerrhi_reg.word0,
7965                                                 phba->sli4_hba.ue_mask_lo,
7966                                                 phba->sli4_hba.ue_mask_hi);
7967                                 port_error = -ENODEV;
7968                         }
7969                         break;
7970                 case LPFC_SLI_INTF_IF_TYPE_2:
7971                 case LPFC_SLI_INTF_IF_TYPE_6:
7972                         /* Final checks.  The port status should be clean. */
7973                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7974                                 &reg_data.word0) ||
7975                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
7976                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
7977                                 phba->work_status[0] =
7978                                         readl(phba->sli4_hba.u.if_type2.
7979                                               ERR1regaddr);
7980                                 phba->work_status[1] =
7981                                         readl(phba->sli4_hba.u.if_type2.
7982                                               ERR2regaddr);
7983                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7984                                         "2888 Unrecoverable port error "
7985                                         "following POST: port status reg "
7986                                         "0x%x, port_smphr reg 0x%x, "
7987                                         "error 1=0x%x, error 2=0x%x\n",
7988                                         reg_data.word0,
7989                                         portsmphr_reg.word0,
7990                                         phba->work_status[0],
7991                                         phba->work_status[1]);
7992                                 port_error = -ENODEV;
7993                         }
7994                         break;
7995                 case LPFC_SLI_INTF_IF_TYPE_1:
7996                 default:
7997                         break;
7998                 }
7999         }
8000         return port_error;
8001 }
8002
8003 /**
8004  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
8005  * @phba: pointer to lpfc hba data structure.
8006  * @if_type:  The SLI4 interface type getting configured.
8007  *
8008  * This routine is invoked to set up SLI4 BAR0 PCI config space register
8009  * memory map.
8010  **/
8011 static void
8012 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8013 {
8014         switch (if_type) {
8015         case LPFC_SLI_INTF_IF_TYPE_0:
8016                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
8017                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
8018                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
8019                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
8020                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
8021                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
8022                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
8023                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
8024                 phba->sli4_hba.SLIINTFregaddr =
8025                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
8026                 break;
8027         case LPFC_SLI_INTF_IF_TYPE_2:
8028                 phba->sli4_hba.u.if_type2.EQDregaddr =
8029                         phba->sli4_hba.conf_regs_memmap_p +
8030                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8031                 phba->sli4_hba.u.if_type2.ERR1regaddr =
8032                         phba->sli4_hba.conf_regs_memmap_p +
8033                                                 LPFC_CTL_PORT_ER1_OFFSET;
8034                 phba->sli4_hba.u.if_type2.ERR2regaddr =
8035                         phba->sli4_hba.conf_regs_memmap_p +
8036                                                 LPFC_CTL_PORT_ER2_OFFSET;
8037                 phba->sli4_hba.u.if_type2.CTRLregaddr =
8038                         phba->sli4_hba.conf_regs_memmap_p +
8039                                                 LPFC_CTL_PORT_CTL_OFFSET;
8040                 phba->sli4_hba.u.if_type2.STATUSregaddr =
8041                         phba->sli4_hba.conf_regs_memmap_p +
8042                                                 LPFC_CTL_PORT_STA_OFFSET;
8043                 phba->sli4_hba.SLIINTFregaddr =
8044                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
8045                 phba->sli4_hba.PSMPHRregaddr =
8046                         phba->sli4_hba.conf_regs_memmap_p +
8047                                                 LPFC_CTL_PORT_SEM_OFFSET;
8048                 phba->sli4_hba.RQDBregaddr =
8049                         phba->sli4_hba.conf_regs_memmap_p +
8050                                                 LPFC_ULP0_RQ_DOORBELL;
8051                 phba->sli4_hba.WQDBregaddr =
8052                         phba->sli4_hba.conf_regs_memmap_p +
8053                                                 LPFC_ULP0_WQ_DOORBELL;
8054                 phba->sli4_hba.CQDBregaddr =
8055                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
8056                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8057                 phba->sli4_hba.MQDBregaddr =
8058                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
8059                 phba->sli4_hba.BMBXregaddr =
8060                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8061                 break;
8062         case LPFC_SLI_INTF_IF_TYPE_6:
8063                 phba->sli4_hba.u.if_type2.EQDregaddr =
8064                         phba->sli4_hba.conf_regs_memmap_p +
8065                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8066                 phba->sli4_hba.u.if_type2.ERR1regaddr =
8067                         phba->sli4_hba.conf_regs_memmap_p +
8068                                                 LPFC_CTL_PORT_ER1_OFFSET;
8069                 phba->sli4_hba.u.if_type2.ERR2regaddr =
8070                         phba->sli4_hba.conf_regs_memmap_p +
8071                                                 LPFC_CTL_PORT_ER2_OFFSET;
8072                 phba->sli4_hba.u.if_type2.CTRLregaddr =
8073                         phba->sli4_hba.conf_regs_memmap_p +
8074                                                 LPFC_CTL_PORT_CTL_OFFSET;
8075                 phba->sli4_hba.u.if_type2.STATUSregaddr =
8076                         phba->sli4_hba.conf_regs_memmap_p +
8077                                                 LPFC_CTL_PORT_STA_OFFSET;
8078                 phba->sli4_hba.PSMPHRregaddr =
8079                         phba->sli4_hba.conf_regs_memmap_p +
8080                                                 LPFC_CTL_PORT_SEM_OFFSET;
8081                 phba->sli4_hba.BMBXregaddr =
8082                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8083                 break;
8084         case LPFC_SLI_INTF_IF_TYPE_1:
8085         default:
8086                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8087                            "FATAL - unsupported SLI4 interface type - %d\n",
8088                            if_type);
8089                 break;
8090         }
8091 }
8092
8093 /**
8094  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
8095  * @phba: pointer to lpfc hba data structure.
8096  *
8097  * This routine is invoked to set up SLI4 BAR1 register memory map.
8098  **/
8099 static void
8100 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8101 {
8102         switch (if_type) {
8103         case LPFC_SLI_INTF_IF_TYPE_0:
8104                 phba->sli4_hba.PSMPHRregaddr =
8105                         phba->sli4_hba.ctrl_regs_memmap_p +
8106                         LPFC_SLIPORT_IF0_SMPHR;
8107                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8108                         LPFC_HST_ISR0;
8109                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8110                         LPFC_HST_IMR0;
8111                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8112                         LPFC_HST_ISCR0;
8113                 break;
8114         case LPFC_SLI_INTF_IF_TYPE_6:
8115                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8116                         LPFC_IF6_RQ_DOORBELL;
8117                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8118                         LPFC_IF6_WQ_DOORBELL;
8119                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8120                         LPFC_IF6_CQ_DOORBELL;
8121                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8122                         LPFC_IF6_EQ_DOORBELL;
8123                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8124                         LPFC_IF6_MQ_DOORBELL;
8125                 break;
8126         case LPFC_SLI_INTF_IF_TYPE_2:
8127         case LPFC_SLI_INTF_IF_TYPE_1:
8128         default:
8129                 dev_err(&phba->pcidev->dev,
8130                            "FATAL - unsupported SLI4 interface type - %d\n",
8131                            if_type);
8132                 break;
8133         }
8134 }
8135
8136 /**
8137  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
8138  * @phba: pointer to lpfc hba data structure.
8139  * @vf: virtual function number
8140  *
8141  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
8142  * based on the given viftual function number, @vf.
8143  *
8144  * Return 0 if successful, otherwise -ENODEV.
8145  **/
8146 static int
8147 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
8148 {
8149         if (vf > LPFC_VIR_FUNC_MAX)
8150                 return -ENODEV;
8151
8152         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8153                                 vf * LPFC_VFR_PAGE_SIZE +
8154                                         LPFC_ULP0_RQ_DOORBELL);
8155         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8156                                 vf * LPFC_VFR_PAGE_SIZE +
8157                                         LPFC_ULP0_WQ_DOORBELL);
8158         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8159                                 vf * LPFC_VFR_PAGE_SIZE +
8160                                         LPFC_EQCQ_DOORBELL);
8161         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8162         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8163                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
8164         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8165                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
8166         return 0;
8167 }
8168
8169 /**
8170  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
8171  * @phba: pointer to lpfc hba data structure.
8172  *
8173  * This routine is invoked to create the bootstrap mailbox
8174  * region consistent with the SLI-4 interface spec.  This
8175  * routine allocates all memory necessary to communicate
8176  * mailbox commands to the port and sets up all alignment
8177  * needs.  No locks are expected to be held when calling
8178  * this routine.
8179  *
8180  * Return codes
8181  *      0 - successful
8182  *      -ENOMEM - could not allocated memory.
8183  **/
8184 static int
8185 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
8186 {
8187         uint32_t bmbx_size;
8188         struct lpfc_dmabuf *dmabuf;
8189         struct dma_address *dma_address;
8190         uint32_t pa_addr;
8191         uint64_t phys_addr;
8192
8193         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8194         if (!dmabuf)
8195                 return -ENOMEM;
8196
8197         /*
8198          * The bootstrap mailbox region is comprised of 2 parts
8199          * plus an alignment restriction of 16 bytes.
8200          */
8201         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
8202         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
8203                                           &dmabuf->phys, GFP_KERNEL);
8204         if (!dmabuf->virt) {
8205                 kfree(dmabuf);
8206                 return -ENOMEM;
8207         }
8208
8209         /*
8210          * Initialize the bootstrap mailbox pointers now so that the register
8211          * operations are simple later.  The mailbox dma address is required
8212          * to be 16-byte aligned.  Also align the virtual memory as each
8213          * maibox is copied into the bmbx mailbox region before issuing the
8214          * command to the port.
8215          */
8216         phba->sli4_hba.bmbx.dmabuf = dmabuf;
8217         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
8218
8219         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
8220                                               LPFC_ALIGN_16_BYTE);
8221         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
8222                                               LPFC_ALIGN_16_BYTE);
8223
8224         /*
8225          * Set the high and low physical addresses now.  The SLI4 alignment
8226          * requirement is 16 bytes and the mailbox is posted to the port
8227          * as two 30-bit addresses.  The other data is a bit marking whether
8228          * the 30-bit address is the high or low address.
8229          * Upcast bmbx aphys to 64bits so shift instruction compiles
8230          * clean on 32 bit machines.
8231          */
8232         dma_address = &phba->sli4_hba.bmbx.dma_address;
8233         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
8234         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
8235         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
8236                                            LPFC_BMBX_BIT1_ADDR_HI);
8237
8238         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
8239         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
8240                                            LPFC_BMBX_BIT1_ADDR_LO);
8241         return 0;
8242 }
8243
8244 /**
8245  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
8246  * @phba: pointer to lpfc hba data structure.
8247  *
8248  * This routine is invoked to teardown the bootstrap mailbox
8249  * region and release all host resources. This routine requires
8250  * the caller to ensure all mailbox commands recovered, no
8251  * additional mailbox comands are sent, and interrupts are disabled
8252  * before calling this routine.
8253  *
8254  **/
8255 static void
8256 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
8257 {
8258         dma_free_coherent(&phba->pcidev->dev,
8259                           phba->sli4_hba.bmbx.bmbx_size,
8260                           phba->sli4_hba.bmbx.dmabuf->virt,
8261                           phba->sli4_hba.bmbx.dmabuf->phys);
8262
8263         kfree(phba->sli4_hba.bmbx.dmabuf);
8264         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
8265 }
8266
8267 static const char * const lpfc_topo_to_str[] = {
8268         "Loop then P2P",
8269         "Loopback",
8270         "P2P Only",
8271         "Unsupported",
8272         "Loop Only",
8273         "Unsupported",
8274         "P2P then Loop",
8275 };
8276
8277 /**
8278  * lpfc_map_topology - Map the topology read from READ_CONFIG
8279  * @phba: pointer to lpfc hba data structure.
8280  * @rdconf: pointer to read config data
8281  *
8282  * This routine is invoked to map the topology values as read
8283  * from the read config mailbox command. If the persistent
8284  * topology feature is supported, the firmware will provide the
8285  * saved topology information to be used in INIT_LINK
8286  *
8287  **/
8288 #define LINK_FLAGS_DEF  0x0
8289 #define LINK_FLAGS_P2P  0x1
8290 #define LINK_FLAGS_LOOP 0x2
8291 static void
8292 lpfc_map_topology(struct lpfc_hba *phba, struct lpfc_mbx_read_config *rd_config)
8293 {
8294         u8 ptv, tf, pt;
8295
8296         ptv = bf_get(lpfc_mbx_rd_conf_ptv, rd_config);
8297         tf = bf_get(lpfc_mbx_rd_conf_tf, rd_config);
8298         pt = bf_get(lpfc_mbx_rd_conf_pt, rd_config);
8299
8300         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8301                         "2027 Read Config Data : ptv:0x%x, tf:0x%x pt:0x%x",
8302                          ptv, tf, pt);
8303         if (!ptv) {
8304                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8305                                 "2019 FW does not support persistent topology "
8306                                 "Using driver parameter defined value [%s]",
8307                                 lpfc_topo_to_str[phba->cfg_topology]);
8308                 return;
8309         }
8310         /* FW supports persistent topology - override module parameter value */
8311         phba->hba_flag |= HBA_PERSISTENT_TOPO;
8312         switch (phba->pcidev->device) {
8313         case PCI_DEVICE_ID_LANCER_G7_FC:
8314         case PCI_DEVICE_ID_LANCER_G6_FC:
8315                 if (!tf) {
8316                         phba->cfg_topology = ((pt == LINK_FLAGS_LOOP)
8317                                         ? FLAGS_TOPOLOGY_MODE_LOOP
8318                                         : FLAGS_TOPOLOGY_MODE_PT_PT);
8319                 } else {
8320                         phba->hba_flag &= ~HBA_PERSISTENT_TOPO;
8321                 }
8322                 break;
8323         default:        /* G5 */
8324                 if (tf) {
8325                         /* If topology failover set - pt is '0' or '1' */
8326                         phba->cfg_topology = (pt ? FLAGS_TOPOLOGY_MODE_PT_LOOP :
8327                                               FLAGS_TOPOLOGY_MODE_LOOP_PT);
8328                 } else {
8329                         phba->cfg_topology = ((pt == LINK_FLAGS_P2P)
8330                                         ? FLAGS_TOPOLOGY_MODE_PT_PT
8331                                         : FLAGS_TOPOLOGY_MODE_LOOP);
8332                 }
8333                 break;
8334         }
8335         if (phba->hba_flag & HBA_PERSISTENT_TOPO) {
8336                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8337                                 "2020 Using persistent topology value [%s]",
8338                                 lpfc_topo_to_str[phba->cfg_topology]);
8339         } else {
8340                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8341                                 "2021 Invalid topology values from FW "
8342                                 "Using driver parameter defined value [%s]",
8343                                 lpfc_topo_to_str[phba->cfg_topology]);
8344         }
8345 }
8346
8347 /**
8348  * lpfc_sli4_read_config - Get the config parameters.
8349  * @phba: pointer to lpfc hba data structure.
8350  *
8351  * This routine is invoked to read the configuration parameters from the HBA.
8352  * The configuration parameters are used to set the base and maximum values
8353  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
8354  * allocation for the port.
8355  *
8356  * Return codes
8357  *      0 - successful
8358  *      -ENOMEM - No available memory
8359  *      -EIO - The mailbox failed to complete successfully.
8360  **/
8361 int
8362 lpfc_sli4_read_config(struct lpfc_hba *phba)
8363 {
8364         LPFC_MBOXQ_t *pmb;
8365         struct lpfc_mbx_read_config *rd_config;
8366         union  lpfc_sli4_cfg_shdr *shdr;
8367         uint32_t shdr_status, shdr_add_status;
8368         struct lpfc_mbx_get_func_cfg *get_func_cfg;
8369         struct lpfc_rsrc_desc_fcfcoe *desc;
8370         char *pdesc_0;
8371         uint16_t forced_link_speed;
8372         uint32_t if_type, qmin;
8373         int length, i, rc = 0, rc2;
8374
8375         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8376         if (!pmb) {
8377                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8378                                 "2011 Unable to allocate memory for issuing "
8379                                 "SLI_CONFIG_SPECIAL mailbox command\n");
8380                 return -ENOMEM;
8381         }
8382
8383         lpfc_read_config(phba, pmb);
8384
8385         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8386         if (rc != MBX_SUCCESS) {
8387                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8388                         "2012 Mailbox failed , mbxCmd x%x "
8389                         "READ_CONFIG, mbxStatus x%x\n",
8390                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
8391                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
8392                 rc = -EIO;
8393         } else {
8394                 rd_config = &pmb->u.mqe.un.rd_config;
8395                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
8396                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
8397                         phba->sli4_hba.lnk_info.lnk_tp =
8398                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
8399                         phba->sli4_hba.lnk_info.lnk_no =
8400                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
8401                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8402                                         "3081 lnk_type:%d, lnk_numb:%d\n",
8403                                         phba->sli4_hba.lnk_info.lnk_tp,
8404                                         phba->sli4_hba.lnk_info.lnk_no);
8405                 } else
8406                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8407                                         "3082 Mailbox (x%x) returned ldv:x0\n",
8408                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
8409                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
8410                         phba->bbcredit_support = 1;
8411                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
8412                 }
8413
8414                 phba->sli4_hba.conf_trunk =
8415                         bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
8416                 phba->sli4_hba.extents_in_use =
8417                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
8418                 phba->sli4_hba.max_cfg_param.max_xri =
8419                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
8420                 /* Reduce resource usage in kdump environment */
8421                 if (is_kdump_kernel() &&
8422                     phba->sli4_hba.max_cfg_param.max_xri > 512)
8423                         phba->sli4_hba.max_cfg_param.max_xri = 512;
8424                 phba->sli4_hba.max_cfg_param.xri_base =
8425                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
8426                 phba->sli4_hba.max_cfg_param.max_vpi =
8427                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
8428                 /* Limit the max we support */
8429                 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
8430                         phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
8431                 phba->sli4_hba.max_cfg_param.vpi_base =
8432                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
8433                 phba->sli4_hba.max_cfg_param.max_rpi =
8434                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
8435                 phba->sli4_hba.max_cfg_param.rpi_base =
8436                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
8437                 phba->sli4_hba.max_cfg_param.max_vfi =
8438                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
8439                 phba->sli4_hba.max_cfg_param.vfi_base =
8440                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
8441                 phba->sli4_hba.max_cfg_param.max_fcfi =
8442                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
8443                 phba->sli4_hba.max_cfg_param.max_eq =
8444                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
8445                 phba->sli4_hba.max_cfg_param.max_rq =
8446                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
8447                 phba->sli4_hba.max_cfg_param.max_wq =
8448                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
8449                 phba->sli4_hba.max_cfg_param.max_cq =
8450                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
8451                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
8452                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
8453                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
8454                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
8455                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
8456                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
8457                 phba->max_vports = phba->max_vpi;
8458                 lpfc_map_topology(phba, rd_config);
8459                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8460                                 "2003 cfg params Extents? %d "
8461                                 "XRI(B:%d M:%d), "
8462                                 "VPI(B:%d M:%d) "
8463                                 "VFI(B:%d M:%d) "
8464                                 "RPI(B:%d M:%d) "
8465                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
8466                                 phba->sli4_hba.extents_in_use,
8467                                 phba->sli4_hba.max_cfg_param.xri_base,
8468                                 phba->sli4_hba.max_cfg_param.max_xri,
8469                                 phba->sli4_hba.max_cfg_param.vpi_base,
8470                                 phba->sli4_hba.max_cfg_param.max_vpi,
8471                                 phba->sli4_hba.max_cfg_param.vfi_base,
8472                                 phba->sli4_hba.max_cfg_param.max_vfi,
8473                                 phba->sli4_hba.max_cfg_param.rpi_base,
8474                                 phba->sli4_hba.max_cfg_param.max_rpi,
8475                                 phba->sli4_hba.max_cfg_param.max_fcfi,
8476                                 phba->sli4_hba.max_cfg_param.max_eq,
8477                                 phba->sli4_hba.max_cfg_param.max_cq,
8478                                 phba->sli4_hba.max_cfg_param.max_wq,
8479                                 phba->sli4_hba.max_cfg_param.max_rq);
8480
8481                 /*
8482                  * Calculate queue resources based on how
8483                  * many WQ/CQ/EQs are available.
8484                  */
8485                 qmin = phba->sli4_hba.max_cfg_param.max_wq;
8486                 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
8487                         qmin = phba->sli4_hba.max_cfg_param.max_cq;
8488                 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
8489                         qmin = phba->sli4_hba.max_cfg_param.max_eq;
8490                 /*
8491                  * Whats left after this can go toward NVME / FCP.
8492                  * The minus 4 accounts for ELS, NVME LS, MBOX
8493                  * plus one extra. When configured for
8494                  * NVMET, FCP io channel WQs are not created.
8495                  */
8496                 qmin -= 4;
8497
8498                 /* Check to see if there is enough for NVME */
8499                 if ((phba->cfg_irq_chann > qmin) ||
8500                     (phba->cfg_hdw_queue > qmin)) {
8501                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8502                                         "2005 Reducing Queues: "
8503                                         "WQ %d CQ %d EQ %d: min %d: "
8504                                         "IRQ %d HDWQ %d\n",
8505                                         phba->sli4_hba.max_cfg_param.max_wq,
8506                                         phba->sli4_hba.max_cfg_param.max_cq,
8507                                         phba->sli4_hba.max_cfg_param.max_eq,
8508                                         qmin, phba->cfg_irq_chann,
8509                                         phba->cfg_hdw_queue);
8510
8511                         if (phba->cfg_irq_chann > qmin)
8512                                 phba->cfg_irq_chann = qmin;
8513                         if (phba->cfg_hdw_queue > qmin)
8514                                 phba->cfg_hdw_queue = qmin;
8515                 }
8516         }
8517
8518         if (rc)
8519                 goto read_cfg_out;
8520
8521         /* Update link speed if forced link speed is supported */
8522         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8523         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
8524                 forced_link_speed =
8525                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
8526                 if (forced_link_speed) {
8527                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
8528
8529                         switch (forced_link_speed) {
8530                         case LINK_SPEED_1G:
8531                                 phba->cfg_link_speed =
8532                                         LPFC_USER_LINK_SPEED_1G;
8533                                 break;
8534                         case LINK_SPEED_2G:
8535                                 phba->cfg_link_speed =
8536                                         LPFC_USER_LINK_SPEED_2G;
8537                                 break;
8538                         case LINK_SPEED_4G:
8539                                 phba->cfg_link_speed =
8540                                         LPFC_USER_LINK_SPEED_4G;
8541                                 break;
8542                         case LINK_SPEED_8G:
8543                                 phba->cfg_link_speed =
8544                                         LPFC_USER_LINK_SPEED_8G;
8545                                 break;
8546                         case LINK_SPEED_10G:
8547                                 phba->cfg_link_speed =
8548                                         LPFC_USER_LINK_SPEED_10G;
8549                                 break;
8550                         case LINK_SPEED_16G:
8551                                 phba->cfg_link_speed =
8552                                         LPFC_USER_LINK_SPEED_16G;
8553                                 break;
8554                         case LINK_SPEED_32G:
8555                                 phba->cfg_link_speed =
8556                                         LPFC_USER_LINK_SPEED_32G;
8557                                 break;
8558                         case LINK_SPEED_64G:
8559                                 phba->cfg_link_speed =
8560                                         LPFC_USER_LINK_SPEED_64G;
8561                                 break;
8562                         case 0xffff:
8563                                 phba->cfg_link_speed =
8564                                         LPFC_USER_LINK_SPEED_AUTO;
8565                                 break;
8566                         default:
8567                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8568                                                 "0047 Unrecognized link "
8569                                                 "speed : %d\n",
8570                                                 forced_link_speed);
8571                                 phba->cfg_link_speed =
8572                                         LPFC_USER_LINK_SPEED_AUTO;
8573                         }
8574                 }
8575         }
8576
8577         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
8578         length = phba->sli4_hba.max_cfg_param.max_xri -
8579                         lpfc_sli4_get_els_iocb_cnt(phba);
8580         if (phba->cfg_hba_queue_depth > length) {
8581                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8582                                 "3361 HBA queue depth changed from %d to %d\n",
8583                                 phba->cfg_hba_queue_depth, length);
8584                 phba->cfg_hba_queue_depth = length;
8585         }
8586
8587         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
8588             LPFC_SLI_INTF_IF_TYPE_2)
8589                 goto read_cfg_out;
8590
8591         /* get the pf# and vf# for SLI4 if_type 2 port */
8592         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
8593                   sizeof(struct lpfc_sli4_cfg_mhdr));
8594         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
8595                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
8596                          length, LPFC_SLI4_MBX_EMBED);
8597
8598         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8599         shdr = (union lpfc_sli4_cfg_shdr *)
8600                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
8601         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8602         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8603         if (rc2 || shdr_status || shdr_add_status) {
8604                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8605                                 "3026 Mailbox failed , mbxCmd x%x "
8606                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
8607                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
8608                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
8609                 goto read_cfg_out;
8610         }
8611
8612         /* search for fc_fcoe resrouce descriptor */
8613         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
8614
8615         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
8616         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
8617         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
8618         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
8619                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
8620         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
8621                 goto read_cfg_out;
8622
8623         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
8624                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
8625                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
8626                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
8627                         phba->sli4_hba.iov.pf_number =
8628                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
8629                         phba->sli4_hba.iov.vf_number =
8630                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
8631                         break;
8632                 }
8633         }
8634
8635         if (i < LPFC_RSRC_DESC_MAX_NUM)
8636                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8637                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
8638                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
8639                                 phba->sli4_hba.iov.vf_number);
8640         else
8641                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8642                                 "3028 GET_FUNCTION_CONFIG: failed to find "
8643                                 "Resource Descriptor:x%x\n",
8644                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
8645
8646 read_cfg_out:
8647         mempool_free(pmb, phba->mbox_mem_pool);
8648         return rc;
8649 }
8650
8651 /**
8652  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
8653  * @phba: pointer to lpfc hba data structure.
8654  *
8655  * This routine is invoked to setup the port-side endian order when
8656  * the port if_type is 0.  This routine has no function for other
8657  * if_types.
8658  *
8659  * Return codes
8660  *      0 - successful
8661  *      -ENOMEM - No available memory
8662  *      -EIO - The mailbox failed to complete successfully.
8663  **/
8664 static int
8665 lpfc_setup_endian_order(struct lpfc_hba *phba)
8666 {
8667         LPFC_MBOXQ_t *mboxq;
8668         uint32_t if_type, rc = 0;
8669         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
8670                                       HOST_ENDIAN_HIGH_WORD1};
8671
8672         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8673         switch (if_type) {
8674         case LPFC_SLI_INTF_IF_TYPE_0:
8675                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8676                                                        GFP_KERNEL);
8677                 if (!mboxq) {
8678                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8679                                         "0492 Unable to allocate memory for "
8680                                         "issuing SLI_CONFIG_SPECIAL mailbox "
8681                                         "command\n");
8682                         return -ENOMEM;
8683                 }
8684
8685                 /*
8686                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
8687                  * two words to contain special data values and no other data.
8688                  */
8689                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
8690                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
8691                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8692                 if (rc != MBX_SUCCESS) {
8693                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8694                                         "0493 SLI_CONFIG_SPECIAL mailbox "
8695                                         "failed with status x%x\n",
8696                                         rc);
8697                         rc = -EIO;
8698                 }
8699                 mempool_free(mboxq, phba->mbox_mem_pool);
8700                 break;
8701         case LPFC_SLI_INTF_IF_TYPE_6:
8702         case LPFC_SLI_INTF_IF_TYPE_2:
8703         case LPFC_SLI_INTF_IF_TYPE_1:
8704         default:
8705                 break;
8706         }
8707         return rc;
8708 }
8709
8710 /**
8711  * lpfc_sli4_queue_verify - Verify and update EQ counts
8712  * @phba: pointer to lpfc hba data structure.
8713  *
8714  * This routine is invoked to check the user settable queue counts for EQs.
8715  * After this routine is called the counts will be set to valid values that
8716  * adhere to the constraints of the system's interrupt vectors and the port's
8717  * queue resources.
8718  *
8719  * Return codes
8720  *      0 - successful
8721  *      -ENOMEM - No available memory
8722  **/
8723 static int
8724 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
8725 {
8726         /*
8727          * Sanity check for configured queue parameters against the run-time
8728          * device parameters
8729          */
8730
8731         if (phba->nvmet_support) {
8732                 if (phba->cfg_hdw_queue < phba->cfg_nvmet_mrq)
8733                         phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
8734                 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
8735                         phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
8736         }
8737
8738         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8739                         "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
8740                         phba->cfg_hdw_queue, phba->cfg_irq_chann,
8741                         phba->cfg_nvmet_mrq);
8742
8743         /* Get EQ depth from module parameter, fake the default for now */
8744         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8745         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8746
8747         /* Get CQ depth from module parameter, fake the default for now */
8748         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8749         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8750         return 0;
8751 }
8752
8753 static int
8754 lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx)
8755 {
8756         struct lpfc_queue *qdesc;
8757         u32 wqesize;
8758         int cpu;
8759
8760         cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ);
8761         /* Create Fast Path IO CQs */
8762         if (phba->enab_exp_wqcq_pages)
8763                 /* Increase the CQ size when WQEs contain an embedded cdb */
8764                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8765                                               phba->sli4_hba.cq_esize,
8766                                               LPFC_CQE_EXP_COUNT, cpu);
8767
8768         else
8769                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8770                                               phba->sli4_hba.cq_esize,
8771                                               phba->sli4_hba.cq_ecount, cpu);
8772         if (!qdesc) {
8773                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8774                         "0499 Failed allocate fast-path IO CQ (%d)\n", idx);
8775                 return 1;
8776         }
8777         qdesc->qe_valid = 1;
8778         qdesc->hdwq = idx;
8779         qdesc->chann = cpu;
8780         phba->sli4_hba.hdwq[idx].io_cq = qdesc;
8781
8782         /* Create Fast Path IO WQs */
8783         if (phba->enab_exp_wqcq_pages) {
8784                 /* Increase the WQ size when WQEs contain an embedded cdb */
8785                 wqesize = (phba->fcp_embed_io) ?
8786                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8787                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8788                                               wqesize,
8789                                               LPFC_WQE_EXP_COUNT, cpu);
8790         } else
8791                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8792                                               phba->sli4_hba.wq_esize,
8793                                               phba->sli4_hba.wq_ecount, cpu);
8794
8795         if (!qdesc) {
8796                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8797                                 "0503 Failed allocate fast-path IO WQ (%d)\n",
8798                                 idx);
8799                 return 1;
8800         }
8801         qdesc->hdwq = idx;
8802         qdesc->chann = cpu;
8803         phba->sli4_hba.hdwq[idx].io_wq = qdesc;
8804         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8805         return 0;
8806 }
8807
8808 /**
8809  * lpfc_sli4_queue_create - Create all the SLI4 queues
8810  * @phba: pointer to lpfc hba data structure.
8811  *
8812  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8813  * operation. For each SLI4 queue type, the parameters such as queue entry
8814  * count (queue depth) shall be taken from the module parameter. For now,
8815  * we just use some constant number as place holder.
8816  *
8817  * Return codes
8818  *      0 - successful
8819  *      -ENOMEM - No availble memory
8820  *      -EIO - The mailbox failed to complete successfully.
8821  **/
8822 int
8823 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8824 {
8825         struct lpfc_queue *qdesc;
8826         int idx, cpu, eqcpu;
8827         struct lpfc_sli4_hdw_queue *qp;
8828         struct lpfc_vector_map_info *cpup;
8829         struct lpfc_vector_map_info *eqcpup;
8830         struct lpfc_eq_intr_info *eqi;
8831
8832         /*
8833          * Create HBA Record arrays.
8834          * Both NVME and FCP will share that same vectors / EQs
8835          */
8836         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8837         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8838         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8839         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8840         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8841         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8842         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8843         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8844         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8845         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8846
8847         if (!phba->sli4_hba.hdwq) {
8848                 phba->sli4_hba.hdwq = kcalloc(
8849                         phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
8850                         GFP_KERNEL);
8851                 if (!phba->sli4_hba.hdwq) {
8852                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8853                                         "6427 Failed allocate memory for "
8854                                         "fast-path Hardware Queue array\n");
8855                         goto out_error;
8856                 }
8857                 /* Prepare hardware queues to take IO buffers */
8858                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8859                         qp = &phba->sli4_hba.hdwq[idx];
8860                         spin_lock_init(&qp->io_buf_list_get_lock);
8861                         spin_lock_init(&qp->io_buf_list_put_lock);
8862                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
8863                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
8864                         qp->get_io_bufs = 0;
8865                         qp->put_io_bufs = 0;
8866                         qp->total_io_bufs = 0;
8867                         spin_lock_init(&qp->abts_io_buf_list_lock);
8868                         INIT_LIST_HEAD(&qp->lpfc_abts_io_buf_list);
8869                         qp->abts_scsi_io_bufs = 0;
8870                         qp->abts_nvme_io_bufs = 0;
8871                         INIT_LIST_HEAD(&qp->sgl_list);
8872                         INIT_LIST_HEAD(&qp->cmd_rsp_buf_list);
8873                         spin_lock_init(&qp->hdwq_lock);
8874                 }
8875         }
8876
8877         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8878                 if (phba->nvmet_support) {
8879                         phba->sli4_hba.nvmet_cqset = kcalloc(
8880                                         phba->cfg_nvmet_mrq,
8881                                         sizeof(struct lpfc_queue *),
8882                                         GFP_KERNEL);
8883                         if (!phba->sli4_hba.nvmet_cqset) {
8884                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8885                                         "3121 Fail allocate memory for "
8886                                         "fast-path CQ set array\n");
8887                                 goto out_error;
8888                         }
8889                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8890                                         phba->cfg_nvmet_mrq,
8891                                         sizeof(struct lpfc_queue *),
8892                                         GFP_KERNEL);
8893                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
8894                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8895                                         "3122 Fail allocate memory for "
8896                                         "fast-path RQ set hdr array\n");
8897                                 goto out_error;
8898                         }
8899                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
8900                                         phba->cfg_nvmet_mrq,
8901                                         sizeof(struct lpfc_queue *),
8902                                         GFP_KERNEL);
8903                         if (!phba->sli4_hba.nvmet_mrq_data) {
8904                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8905                                         "3124 Fail allocate memory for "
8906                                         "fast-path RQ set data array\n");
8907                                 goto out_error;
8908                         }
8909                 }
8910         }
8911
8912         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8913
8914         /* Create HBA Event Queues (EQs) */
8915         for_each_present_cpu(cpu) {
8916                 /* We only want to create 1 EQ per vector, even though
8917                  * multiple CPUs might be using that vector. so only
8918                  * selects the CPUs that are LPFC_CPU_FIRST_IRQ.
8919                  */
8920                 cpup = &phba->sli4_hba.cpu_map[cpu];
8921                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
8922                         continue;
8923
8924                 /* Get a ptr to the Hardware Queue associated with this CPU */
8925                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
8926
8927                 /* Allocate an EQ */
8928                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8929                                               phba->sli4_hba.eq_esize,
8930                                               phba->sli4_hba.eq_ecount, cpu);
8931                 if (!qdesc) {
8932                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8933                                         "0497 Failed allocate EQ (%d)\n",
8934                                         cpup->hdwq);
8935                         goto out_error;
8936                 }
8937                 qdesc->qe_valid = 1;
8938                 qdesc->hdwq = cpup->hdwq;
8939                 qdesc->chann = cpu; /* First CPU this EQ is affinitized to */
8940                 qdesc->last_cpu = qdesc->chann;
8941
8942                 /* Save the allocated EQ in the Hardware Queue */
8943                 qp->hba_eq = qdesc;
8944
8945                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
8946                 list_add(&qdesc->cpu_list, &eqi->list);
8947         }
8948
8949         /* Now we need to populate the other Hardware Queues, that share
8950          * an IRQ vector, with the associated EQ ptr.
8951          */
8952         for_each_present_cpu(cpu) {
8953                 cpup = &phba->sli4_hba.cpu_map[cpu];
8954
8955                 /* Check for EQ already allocated in previous loop */
8956                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
8957                         continue;
8958
8959                 /* Check for multiple CPUs per hdwq */
8960                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
8961                 if (qp->hba_eq)
8962                         continue;
8963
8964                 /* We need to share an EQ for this hdwq */
8965                 eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
8966                 eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
8967                 qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
8968         }
8969
8970         /* Allocate IO Path SLI4 CQ/WQs */
8971         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8972                 if (lpfc_alloc_io_wq_cq(phba, idx))
8973                         goto out_error;
8974         }
8975
8976         if (phba->nvmet_support) {
8977                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8978                         cpu = lpfc_find_cpu_handle(phba, idx,
8979                                                    LPFC_FIND_BY_HDWQ);
8980                         qdesc = lpfc_sli4_queue_alloc(phba,
8981                                                       LPFC_DEFAULT_PAGE_SIZE,
8982                                                       phba->sli4_hba.cq_esize,
8983                                                       phba->sli4_hba.cq_ecount,
8984                                                       cpu);
8985                         if (!qdesc) {
8986                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8987                                                 "3142 Failed allocate NVME "
8988                                                 "CQ Set (%d)\n", idx);
8989                                 goto out_error;
8990                         }
8991                         qdesc->qe_valid = 1;
8992                         qdesc->hdwq = idx;
8993                         qdesc->chann = cpu;
8994                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
8995                 }
8996         }
8997
8998         /*
8999          * Create Slow Path Completion Queues (CQs)
9000          */
9001
9002         cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
9003         /* Create slow-path Mailbox Command Complete Queue */
9004         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9005                                       phba->sli4_hba.cq_esize,
9006                                       phba->sli4_hba.cq_ecount, cpu);
9007         if (!qdesc) {
9008                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9009                                 "0500 Failed allocate slow-path mailbox CQ\n");
9010                 goto out_error;
9011         }
9012         qdesc->qe_valid = 1;
9013         phba->sli4_hba.mbx_cq = qdesc;
9014
9015         /* Create slow-path ELS Complete Queue */
9016         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9017                                       phba->sli4_hba.cq_esize,
9018                                       phba->sli4_hba.cq_ecount, cpu);
9019         if (!qdesc) {
9020                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9021                                 "0501 Failed allocate slow-path ELS CQ\n");
9022                 goto out_error;
9023         }
9024         qdesc->qe_valid = 1;
9025         qdesc->chann = cpu;
9026         phba->sli4_hba.els_cq = qdesc;
9027
9028
9029         /*
9030          * Create Slow Path Work Queues (WQs)
9031          */
9032
9033         /* Create Mailbox Command Queue */
9034
9035         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9036                                       phba->sli4_hba.mq_esize,
9037                                       phba->sli4_hba.mq_ecount, cpu);
9038         if (!qdesc) {
9039                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9040                                 "0505 Failed allocate slow-path MQ\n");
9041                 goto out_error;
9042         }
9043         qdesc->chann = cpu;
9044         phba->sli4_hba.mbx_wq = qdesc;
9045
9046         /*
9047          * Create ELS Work Queues
9048          */
9049
9050         /* Create slow-path ELS Work Queue */
9051         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9052                                       phba->sli4_hba.wq_esize,
9053                                       phba->sli4_hba.wq_ecount, cpu);
9054         if (!qdesc) {
9055                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9056                                 "0504 Failed allocate slow-path ELS WQ\n");
9057                 goto out_error;
9058         }
9059         qdesc->chann = cpu;
9060         phba->sli4_hba.els_wq = qdesc;
9061         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
9062
9063         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9064                 /* Create NVME LS Complete Queue */
9065                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9066                                               phba->sli4_hba.cq_esize,
9067                                               phba->sli4_hba.cq_ecount, cpu);
9068                 if (!qdesc) {
9069                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9070                                         "6079 Failed allocate NVME LS CQ\n");
9071                         goto out_error;
9072                 }
9073                 qdesc->chann = cpu;
9074                 qdesc->qe_valid = 1;
9075                 phba->sli4_hba.nvmels_cq = qdesc;
9076
9077                 /* Create NVME LS Work Queue */
9078                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9079                                               phba->sli4_hba.wq_esize,
9080                                               phba->sli4_hba.wq_ecount, cpu);
9081                 if (!qdesc) {
9082                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9083                                         "6080 Failed allocate NVME LS WQ\n");
9084                         goto out_error;
9085                 }
9086                 qdesc->chann = cpu;
9087                 phba->sli4_hba.nvmels_wq = qdesc;
9088                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
9089         }
9090
9091         /*
9092          * Create Receive Queue (RQ)
9093          */
9094
9095         /* Create Receive Queue for header */
9096         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9097                                       phba->sli4_hba.rq_esize,
9098                                       phba->sli4_hba.rq_ecount, cpu);
9099         if (!qdesc) {
9100                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9101                                 "0506 Failed allocate receive HRQ\n");
9102                 goto out_error;
9103         }
9104         phba->sli4_hba.hdr_rq = qdesc;
9105
9106         /* Create Receive Queue for data */
9107         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9108                                       phba->sli4_hba.rq_esize,
9109                                       phba->sli4_hba.rq_ecount, cpu);
9110         if (!qdesc) {
9111                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9112                                 "0507 Failed allocate receive DRQ\n");
9113                 goto out_error;
9114         }
9115         phba->sli4_hba.dat_rq = qdesc;
9116
9117         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
9118             phba->nvmet_support) {
9119                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
9120                         cpu = lpfc_find_cpu_handle(phba, idx,
9121                                                    LPFC_FIND_BY_HDWQ);
9122                         /* Create NVMET Receive Queue for header */
9123                         qdesc = lpfc_sli4_queue_alloc(phba,
9124                                                       LPFC_DEFAULT_PAGE_SIZE,
9125                                                       phba->sli4_hba.rq_esize,
9126                                                       LPFC_NVMET_RQE_DEF_COUNT,
9127                                                       cpu);
9128                         if (!qdesc) {
9129                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9130                                                 "3146 Failed allocate "
9131                                                 "receive HRQ\n");
9132                                 goto out_error;
9133                         }
9134                         qdesc->hdwq = idx;
9135                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
9136
9137                         /* Only needed for header of RQ pair */
9138                         qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp),
9139                                                    GFP_KERNEL,
9140                                                    cpu_to_node(cpu));
9141                         if (qdesc->rqbp == NULL) {
9142                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9143                                                 "6131 Failed allocate "
9144                                                 "Header RQBP\n");
9145                                 goto out_error;
9146                         }
9147
9148                         /* Put list in known state in case driver load fails. */
9149                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
9150
9151                         /* Create NVMET Receive Queue for data */
9152                         qdesc = lpfc_sli4_queue_alloc(phba,
9153                                                       LPFC_DEFAULT_PAGE_SIZE,
9154                                                       phba->sli4_hba.rq_esize,
9155                                                       LPFC_NVMET_RQE_DEF_COUNT,
9156                                                       cpu);
9157                         if (!qdesc) {
9158                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9159                                                 "3156 Failed allocate "
9160                                                 "receive DRQ\n");
9161                                 goto out_error;
9162                         }
9163                         qdesc->hdwq = idx;
9164                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
9165                 }
9166         }
9167
9168         /* Clear NVME stats */
9169         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9170                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9171                         memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
9172                                sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
9173                 }
9174         }
9175
9176         /* Clear SCSI stats */
9177         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
9178                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9179                         memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
9180                                sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
9181                 }
9182         }
9183
9184         return 0;
9185
9186 out_error:
9187         lpfc_sli4_queue_destroy(phba);
9188         return -ENOMEM;
9189 }
9190
9191 static inline void
9192 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
9193 {
9194         if (*qp != NULL) {
9195                 lpfc_sli4_queue_free(*qp);
9196                 *qp = NULL;
9197         }
9198 }
9199
9200 static inline void
9201 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
9202 {
9203         int idx;
9204
9205         if (*qs == NULL)
9206                 return;
9207
9208         for (idx = 0; idx < max; idx++)
9209                 __lpfc_sli4_release_queue(&(*qs)[idx]);
9210
9211         kfree(*qs);
9212         *qs = NULL;
9213 }
9214
9215 static inline void
9216 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
9217 {
9218         struct lpfc_sli4_hdw_queue *hdwq;
9219         struct lpfc_queue *eq;
9220         uint32_t idx;
9221
9222         hdwq = phba->sli4_hba.hdwq;
9223
9224         /* Loop thru all Hardware Queues */
9225         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9226                 /* Free the CQ/WQ corresponding to the Hardware Queue */
9227                 lpfc_sli4_queue_free(hdwq[idx].io_cq);
9228                 lpfc_sli4_queue_free(hdwq[idx].io_wq);
9229                 hdwq[idx].hba_eq = NULL;
9230                 hdwq[idx].io_cq = NULL;
9231                 hdwq[idx].io_wq = NULL;
9232                 if (phba->cfg_xpsgl && !phba->nvmet_support)
9233                         lpfc_free_sgl_per_hdwq(phba, &hdwq[idx]);
9234                 lpfc_free_cmd_rsp_buf_per_hdwq(phba, &hdwq[idx]);
9235         }
9236         /* Loop thru all IRQ vectors */
9237         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
9238                 /* Free the EQ corresponding to the IRQ vector */
9239                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
9240                 lpfc_sli4_queue_free(eq);
9241                 phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
9242         }
9243 }
9244
9245 /**
9246  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
9247  * @phba: pointer to lpfc hba data structure.
9248  *
9249  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
9250  * operation.
9251  *
9252  * Return codes
9253  *      0 - successful
9254  *      -ENOMEM - No available memory
9255  *      -EIO - The mailbox failed to complete successfully.
9256  **/
9257 void
9258 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
9259 {
9260         /*
9261          * Set FREE_INIT before beginning to free the queues.
9262          * Wait until the users of queues to acknowledge to
9263          * release queues by clearing FREE_WAIT.
9264          */
9265         spin_lock_irq(&phba->hbalock);
9266         phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
9267         while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
9268                 spin_unlock_irq(&phba->hbalock);
9269                 msleep(20);
9270                 spin_lock_irq(&phba->hbalock);
9271         }
9272         spin_unlock_irq(&phba->hbalock);
9273
9274         lpfc_sli4_cleanup_poll_list(phba);
9275
9276         /* Release HBA eqs */
9277         if (phba->sli4_hba.hdwq)
9278                 lpfc_sli4_release_hdwq(phba);
9279
9280         if (phba->nvmet_support) {
9281                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
9282                                          phba->cfg_nvmet_mrq);
9283
9284                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
9285                                          phba->cfg_nvmet_mrq);
9286                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
9287                                          phba->cfg_nvmet_mrq);
9288         }
9289
9290         /* Release mailbox command work queue */
9291         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
9292
9293         /* Release ELS work queue */
9294         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
9295
9296         /* Release ELS work queue */
9297         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
9298
9299         /* Release unsolicited receive queue */
9300         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
9301         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
9302
9303         /* Release ELS complete queue */
9304         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
9305
9306         /* Release NVME LS complete queue */
9307         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
9308
9309         /* Release mailbox command complete queue */
9310         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
9311
9312         /* Everything on this list has been freed */
9313         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
9314
9315         /* Done with freeing the queues */
9316         spin_lock_irq(&phba->hbalock);
9317         phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
9318         spin_unlock_irq(&phba->hbalock);
9319 }
9320
9321 int
9322 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
9323 {
9324         struct lpfc_rqb *rqbp;
9325         struct lpfc_dmabuf *h_buf;
9326         struct rqb_dmabuf *rqb_buffer;
9327
9328         rqbp = rq->rqbp;
9329         while (!list_empty(&rqbp->rqb_buffer_list)) {
9330                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
9331                                  struct lpfc_dmabuf, list);
9332
9333                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
9334                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
9335                 rqbp->buffer_count--;
9336         }
9337         return 1;
9338 }
9339
9340 static int
9341 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
9342         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
9343         int qidx, uint32_t qtype)
9344 {
9345         struct lpfc_sli_ring *pring;
9346         int rc;
9347
9348         if (!eq || !cq || !wq) {
9349                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9350                         "6085 Fast-path %s (%d) not allocated\n",
9351                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
9352                 return -ENOMEM;
9353         }
9354
9355         /* create the Cq first */
9356         rc = lpfc_cq_create(phba, cq, eq,
9357                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
9358         if (rc) {
9359                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9360                         "6086 Failed setup of CQ (%d), rc = 0x%x\n",
9361                         qidx, (uint32_t)rc);
9362                 return rc;
9363         }
9364
9365         if (qtype != LPFC_MBOX) {
9366                 /* Setup cq_map for fast lookup */
9367                 if (cq_map)
9368                         *cq_map = cq->queue_id;
9369
9370                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9371                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
9372                         qidx, cq->queue_id, qidx, eq->queue_id);
9373
9374                 /* create the wq */
9375                 rc = lpfc_wq_create(phba, wq, cq, qtype);
9376                 if (rc) {
9377                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9378                                 "4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
9379                                 qidx, (uint32_t)rc);
9380                         /* no need to tear down cq - caller will do so */
9381                         return rc;
9382                 }
9383
9384                 /* Bind this CQ/WQ to the NVME ring */
9385                 pring = wq->pring;
9386                 pring->sli.sli4.wqp = (void *)wq;
9387                 cq->pring = pring;
9388
9389                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9390                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
9391                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
9392         } else {
9393                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
9394                 if (rc) {
9395                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9396                                 "0539 Failed setup of slow-path MQ: "
9397                                 "rc = 0x%x\n", rc);
9398                         /* no need to tear down cq - caller will do so */
9399                         return rc;
9400                 }
9401
9402                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9403                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
9404                         phba->sli4_hba.mbx_wq->queue_id,
9405                         phba->sli4_hba.mbx_cq->queue_id);
9406         }
9407
9408         return 0;
9409 }
9410
9411 /**
9412  * lpfc_setup_cq_lookup - Setup the CQ lookup table
9413  * @phba: pointer to lpfc hba data structure.
9414  *
9415  * This routine will populate the cq_lookup table by all
9416  * available CQ queue_id's.
9417  **/
9418 static void
9419 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
9420 {
9421         struct lpfc_queue *eq, *childq;
9422         int qidx;
9423
9424         memset(phba->sli4_hba.cq_lookup, 0,
9425                (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
9426         /* Loop thru all IRQ vectors */
9427         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9428                 /* Get the EQ corresponding to the IRQ vector */
9429                 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
9430                 if (!eq)
9431                         continue;
9432                 /* Loop through all CQs associated with that EQ */
9433                 list_for_each_entry(childq, &eq->child_list, list) {
9434                         if (childq->queue_id > phba->sli4_hba.cq_max)
9435                                 continue;
9436                         if (childq->subtype == LPFC_IO)
9437                                 phba->sli4_hba.cq_lookup[childq->queue_id] =
9438                                         childq;
9439                 }
9440         }
9441 }
9442
9443 /**
9444  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
9445  * @phba: pointer to lpfc hba data structure.
9446  *
9447  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
9448  * operation.
9449  *
9450  * Return codes
9451  *      0 - successful
9452  *      -ENOMEM - No available memory
9453  *      -EIO - The mailbox failed to complete successfully.
9454  **/
9455 int
9456 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
9457 {
9458         uint32_t shdr_status, shdr_add_status;
9459         union lpfc_sli4_cfg_shdr *shdr;
9460         struct lpfc_vector_map_info *cpup;
9461         struct lpfc_sli4_hdw_queue *qp;
9462         LPFC_MBOXQ_t *mboxq;
9463         int qidx, cpu;
9464         uint32_t length, usdelay;
9465         int rc = -ENOMEM;
9466
9467         /* Check for dual-ULP support */
9468         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9469         if (!mboxq) {
9470                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9471                                 "3249 Unable to allocate memory for "
9472                                 "QUERY_FW_CFG mailbox command\n");
9473                 return -ENOMEM;
9474         }
9475         length = (sizeof(struct lpfc_mbx_query_fw_config) -
9476                   sizeof(struct lpfc_sli4_cfg_mhdr));
9477         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9478                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
9479                          length, LPFC_SLI4_MBX_EMBED);
9480
9481         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9482
9483         shdr = (union lpfc_sli4_cfg_shdr *)
9484                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9485         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9486         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9487         if (shdr_status || shdr_add_status || rc) {
9488                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9489                                 "3250 QUERY_FW_CFG mailbox failed with status "
9490                                 "x%x add_status x%x, mbx status x%x\n",
9491                                 shdr_status, shdr_add_status, rc);
9492                 if (rc != MBX_TIMEOUT)
9493                         mempool_free(mboxq, phba->mbox_mem_pool);
9494                 rc = -ENXIO;
9495                 goto out_error;
9496         }
9497
9498         phba->sli4_hba.fw_func_mode =
9499                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
9500         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
9501         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
9502         phba->sli4_hba.physical_port =
9503                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
9504         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9505                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
9506                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
9507                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
9508
9509         if (rc != MBX_TIMEOUT)
9510                 mempool_free(mboxq, phba->mbox_mem_pool);
9511
9512         /*
9513          * Set up HBA Event Queues (EQs)
9514          */
9515         qp = phba->sli4_hba.hdwq;
9516
9517         /* Set up HBA event queue */
9518         if (!qp) {
9519                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9520                                 "3147 Fast-path EQs not allocated\n");
9521                 rc = -ENOMEM;
9522                 goto out_error;
9523         }
9524
9525         /* Loop thru all IRQ vectors */
9526         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9527                 /* Create HBA Event Queues (EQs) in order */
9528                 for_each_present_cpu(cpu) {
9529                         cpup = &phba->sli4_hba.cpu_map[cpu];
9530
9531                         /* Look for the CPU thats using that vector with
9532                          * LPFC_CPU_FIRST_IRQ set.
9533                          */
9534                         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
9535                                 continue;
9536                         if (qidx != cpup->eq)
9537                                 continue;
9538
9539                         /* Create an EQ for that vector */
9540                         rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
9541                                             phba->cfg_fcp_imax);
9542                         if (rc) {
9543                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9544                                                 "0523 Failed setup of fast-path"
9545                                                 " EQ (%d), rc = 0x%x\n",
9546                                                 cpup->eq, (uint32_t)rc);
9547                                 goto out_destroy;
9548                         }
9549
9550                         /* Save the EQ for that vector in the hba_eq_hdl */
9551                         phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
9552                                 qp[cpup->hdwq].hba_eq;
9553
9554                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9555                                         "2584 HBA EQ setup: queue[%d]-id=%d\n",
9556                                         cpup->eq,
9557                                         qp[cpup->hdwq].hba_eq->queue_id);
9558                 }
9559         }
9560
9561         /* Loop thru all Hardware Queues */
9562         for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9563                 cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
9564                 cpup = &phba->sli4_hba.cpu_map[cpu];
9565
9566                 /* Create the CQ/WQ corresponding to the Hardware Queue */
9567                 rc = lpfc_create_wq_cq(phba,
9568                                        phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
9569                                        qp[qidx].io_cq,
9570                                        qp[qidx].io_wq,
9571                                        &phba->sli4_hba.hdwq[qidx].io_cq_map,
9572                                        qidx,
9573                                        LPFC_IO);
9574                 if (rc) {
9575                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9576                                         "0535 Failed to setup fastpath "
9577                                         "IO WQ/CQ (%d), rc = 0x%x\n",
9578                                         qidx, (uint32_t)rc);
9579                         goto out_destroy;
9580                 }
9581         }
9582
9583         /*
9584          * Set up Slow Path Complete Queues (CQs)
9585          */
9586
9587         /* Set up slow-path MBOX CQ/MQ */
9588
9589         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
9590                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9591                                 "0528 %s not allocated\n",
9592                                 phba->sli4_hba.mbx_cq ?
9593                                 "Mailbox WQ" : "Mailbox CQ");
9594                 rc = -ENOMEM;
9595                 goto out_destroy;
9596         }
9597
9598         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9599                                phba->sli4_hba.mbx_cq,
9600                                phba->sli4_hba.mbx_wq,
9601                                NULL, 0, LPFC_MBOX);
9602         if (rc) {
9603                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9604                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
9605                         (uint32_t)rc);
9606                 goto out_destroy;
9607         }
9608         if (phba->nvmet_support) {
9609                 if (!phba->sli4_hba.nvmet_cqset) {
9610                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9611                                         "3165 Fast-path NVME CQ Set "
9612                                         "array not allocated\n");
9613                         rc = -ENOMEM;
9614                         goto out_destroy;
9615                 }
9616                 if (phba->cfg_nvmet_mrq > 1) {
9617                         rc = lpfc_cq_create_set(phba,
9618                                         phba->sli4_hba.nvmet_cqset,
9619                                         qp,
9620                                         LPFC_WCQ, LPFC_NVMET);
9621                         if (rc) {
9622                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9623                                                 "3164 Failed setup of NVME CQ "
9624                                                 "Set, rc = 0x%x\n",
9625                                                 (uint32_t)rc);
9626                                 goto out_destroy;
9627                         }
9628                 } else {
9629                         /* Set up NVMET Receive Complete Queue */
9630                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
9631                                             qp[0].hba_eq,
9632                                             LPFC_WCQ, LPFC_NVMET);
9633                         if (rc) {
9634                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9635                                                 "6089 Failed setup NVMET CQ: "
9636                                                 "rc = 0x%x\n", (uint32_t)rc);
9637                                 goto out_destroy;
9638                         }
9639                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
9640
9641                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9642                                         "6090 NVMET CQ setup: cq-id=%d, "
9643                                         "parent eq-id=%d\n",
9644                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
9645                                         qp[0].hba_eq->queue_id);
9646                 }
9647         }
9648
9649         /* Set up slow-path ELS WQ/CQ */
9650         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
9651                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9652                                 "0530 ELS %s not allocated\n",
9653                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
9654                 rc = -ENOMEM;
9655                 goto out_destroy;
9656         }
9657         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9658                                phba->sli4_hba.els_cq,
9659                                phba->sli4_hba.els_wq,
9660                                NULL, 0, LPFC_ELS);
9661         if (rc) {
9662                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9663                                 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
9664                                 (uint32_t)rc);
9665                 goto out_destroy;
9666         }
9667         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9668                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
9669                         phba->sli4_hba.els_wq->queue_id,
9670                         phba->sli4_hba.els_cq->queue_id);
9671
9672         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9673                 /* Set up NVME LS Complete Queue */
9674                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
9675                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9676                                         "6091 LS %s not allocated\n",
9677                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
9678                         rc = -ENOMEM;
9679                         goto out_destroy;
9680                 }
9681                 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9682                                        phba->sli4_hba.nvmels_cq,
9683                                        phba->sli4_hba.nvmels_wq,
9684                                        NULL, 0, LPFC_NVME_LS);
9685                 if (rc) {
9686                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9687                                         "0526 Failed setup of NVVME LS WQ/CQ: "
9688                                         "rc = 0x%x\n", (uint32_t)rc);
9689                         goto out_destroy;
9690                 }
9691
9692                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9693                                 "6096 ELS WQ setup: wq-id=%d, "
9694                                 "parent cq-id=%d\n",
9695                                 phba->sli4_hba.nvmels_wq->queue_id,
9696                                 phba->sli4_hba.nvmels_cq->queue_id);
9697         }
9698
9699         /*
9700          * Create NVMET Receive Queue (RQ)
9701          */
9702         if (phba->nvmet_support) {
9703                 if ((!phba->sli4_hba.nvmet_cqset) ||
9704                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
9705                     (!phba->sli4_hba.nvmet_mrq_data)) {
9706                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9707                                         "6130 MRQ CQ Queues not "
9708                                         "allocated\n");
9709                         rc = -ENOMEM;
9710                         goto out_destroy;
9711                 }
9712                 if (phba->cfg_nvmet_mrq > 1) {
9713                         rc = lpfc_mrq_create(phba,
9714                                              phba->sli4_hba.nvmet_mrq_hdr,
9715                                              phba->sli4_hba.nvmet_mrq_data,
9716                                              phba->sli4_hba.nvmet_cqset,
9717                                              LPFC_NVMET);
9718                         if (rc) {
9719                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9720                                                 "6098 Failed setup of NVMET "
9721                                                 "MRQ: rc = 0x%x\n",
9722                                                 (uint32_t)rc);
9723                                 goto out_destroy;
9724                         }
9725
9726                 } else {
9727                         rc = lpfc_rq_create(phba,
9728                                             phba->sli4_hba.nvmet_mrq_hdr[0],
9729                                             phba->sli4_hba.nvmet_mrq_data[0],
9730                                             phba->sli4_hba.nvmet_cqset[0],
9731                                             LPFC_NVMET);
9732                         if (rc) {
9733                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9734                                                 "6057 Failed setup of NVMET "
9735                                                 "Receive Queue: rc = 0x%x\n",
9736                                                 (uint32_t)rc);
9737                                 goto out_destroy;
9738                         }
9739
9740                         lpfc_printf_log(
9741                                 phba, KERN_INFO, LOG_INIT,
9742                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
9743                                 "dat-rq-id=%d parent cq-id=%d\n",
9744                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
9745                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
9746                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
9747
9748                 }
9749         }
9750
9751         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
9752                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9753                                 "0540 Receive Queue not allocated\n");
9754                 rc = -ENOMEM;
9755                 goto out_destroy;
9756         }
9757
9758         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
9759                             phba->sli4_hba.els_cq, LPFC_USOL);
9760         if (rc) {
9761                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9762                                 "0541 Failed setup of Receive Queue: "
9763                                 "rc = 0x%x\n", (uint32_t)rc);
9764                 goto out_destroy;
9765         }
9766
9767         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9768                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
9769                         "parent cq-id=%d\n",
9770                         phba->sli4_hba.hdr_rq->queue_id,
9771                         phba->sli4_hba.dat_rq->queue_id,
9772                         phba->sli4_hba.els_cq->queue_id);
9773
9774         if (phba->cfg_fcp_imax)
9775                 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
9776         else
9777                 usdelay = 0;
9778
9779         for (qidx = 0; qidx < phba->cfg_irq_chann;
9780              qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
9781                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
9782                                          usdelay);
9783
9784         if (phba->sli4_hba.cq_max) {
9785                 kfree(phba->sli4_hba.cq_lookup);
9786                 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
9787                         sizeof(struct lpfc_queue *), GFP_KERNEL);
9788                 if (!phba->sli4_hba.cq_lookup) {
9789                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9790                                         "0549 Failed setup of CQ Lookup table: "
9791                                         "size 0x%x\n", phba->sli4_hba.cq_max);
9792                         rc = -ENOMEM;
9793                         goto out_destroy;
9794                 }
9795                 lpfc_setup_cq_lookup(phba);
9796         }
9797         return 0;
9798
9799 out_destroy:
9800         lpfc_sli4_queue_unset(phba);
9801 out_error:
9802         return rc;
9803 }
9804
9805 /**
9806  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
9807  * @phba: pointer to lpfc hba data structure.
9808  *
9809  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
9810  * operation.
9811  *
9812  * Return codes
9813  *      0 - successful
9814  *      -ENOMEM - No available memory
9815  *      -EIO - The mailbox failed to complete successfully.
9816  **/
9817 void
9818 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
9819 {
9820         struct lpfc_sli4_hdw_queue *qp;
9821         struct lpfc_queue *eq;
9822         int qidx;
9823
9824         /* Unset mailbox command work queue */
9825         if (phba->sli4_hba.mbx_wq)
9826                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
9827
9828         /* Unset NVME LS work queue */
9829         if (phba->sli4_hba.nvmels_wq)
9830                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
9831
9832         /* Unset ELS work queue */
9833         if (phba->sli4_hba.els_wq)
9834                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
9835
9836         /* Unset unsolicited receive queue */
9837         if (phba->sli4_hba.hdr_rq)
9838                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
9839                                 phba->sli4_hba.dat_rq);
9840
9841         /* Unset mailbox command complete queue */
9842         if (phba->sli4_hba.mbx_cq)
9843                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
9844
9845         /* Unset ELS complete queue */
9846         if (phba->sli4_hba.els_cq)
9847                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
9848
9849         /* Unset NVME LS complete queue */
9850         if (phba->sli4_hba.nvmels_cq)
9851                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
9852
9853         if (phba->nvmet_support) {
9854                 /* Unset NVMET MRQ queue */
9855                 if (phba->sli4_hba.nvmet_mrq_hdr) {
9856                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9857                                 lpfc_rq_destroy(
9858                                         phba,
9859                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
9860                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
9861                 }
9862
9863                 /* Unset NVMET CQ Set complete queue */
9864                 if (phba->sli4_hba.nvmet_cqset) {
9865                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9866                                 lpfc_cq_destroy(
9867                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
9868                 }
9869         }
9870
9871         /* Unset fast-path SLI4 queues */
9872         if (phba->sli4_hba.hdwq) {
9873                 /* Loop thru all Hardware Queues */
9874                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9875                         /* Destroy the CQ/WQ corresponding to Hardware Queue */
9876                         qp = &phba->sli4_hba.hdwq[qidx];
9877                         lpfc_wq_destroy(phba, qp->io_wq);
9878                         lpfc_cq_destroy(phba, qp->io_cq);
9879                 }
9880                 /* Loop thru all IRQ vectors */
9881                 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9882                         /* Destroy the EQ corresponding to the IRQ vector */
9883                         eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
9884                         lpfc_eq_destroy(phba, eq);
9885                 }
9886         }
9887
9888         kfree(phba->sli4_hba.cq_lookup);
9889         phba->sli4_hba.cq_lookup = NULL;
9890         phba->sli4_hba.cq_max = 0;
9891 }
9892
9893 /**
9894  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
9895  * @phba: pointer to lpfc hba data structure.
9896  *
9897  * This routine is invoked to allocate and set up a pool of completion queue
9898  * events. The body of the completion queue event is a completion queue entry
9899  * CQE. For now, this pool is used for the interrupt service routine to queue
9900  * the following HBA completion queue events for the worker thread to process:
9901  *   - Mailbox asynchronous events
9902  *   - Receive queue completion unsolicited events
9903  * Later, this can be used for all the slow-path events.
9904  *
9905  * Return codes
9906  *      0 - successful
9907  *      -ENOMEM - No available memory
9908  **/
9909 static int
9910 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
9911 {
9912         struct lpfc_cq_event *cq_event;
9913         int i;
9914
9915         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
9916                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
9917                 if (!cq_event)
9918                         goto out_pool_create_fail;
9919                 list_add_tail(&cq_event->list,
9920                               &phba->sli4_hba.sp_cqe_event_pool);
9921         }
9922         return 0;
9923
9924 out_pool_create_fail:
9925         lpfc_sli4_cq_event_pool_destroy(phba);
9926         return -ENOMEM;
9927 }
9928
9929 /**
9930  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
9931  * @phba: pointer to lpfc hba data structure.
9932  *
9933  * This routine is invoked to free the pool of completion queue events at
9934  * driver unload time. Note that, it is the responsibility of the driver
9935  * cleanup routine to free all the outstanding completion-queue events
9936  * allocated from this pool back into the pool before invoking this routine
9937  * to destroy the pool.
9938  **/
9939 static void
9940 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
9941 {
9942         struct lpfc_cq_event *cq_event, *next_cq_event;
9943
9944         list_for_each_entry_safe(cq_event, next_cq_event,
9945                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
9946                 list_del(&cq_event->list);
9947                 kfree(cq_event);
9948         }
9949 }
9950
9951 /**
9952  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9953  * @phba: pointer to lpfc hba data structure.
9954  *
9955  * This routine is the lock free version of the API invoked to allocate a
9956  * completion-queue event from the free pool.
9957  *
9958  * Return: Pointer to the newly allocated completion-queue event if successful
9959  *         NULL otherwise.
9960  **/
9961 struct lpfc_cq_event *
9962 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9963 {
9964         struct lpfc_cq_event *cq_event = NULL;
9965
9966         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
9967                          struct lpfc_cq_event, list);
9968         return cq_event;
9969 }
9970
9971 /**
9972  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9973  * @phba: pointer to lpfc hba data structure.
9974  *
9975  * This routine is the lock version of the API invoked to allocate a
9976  * completion-queue event from the free pool.
9977  *
9978  * Return: Pointer to the newly allocated completion-queue event if successful
9979  *         NULL otherwise.
9980  **/
9981 struct lpfc_cq_event *
9982 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9983 {
9984         struct lpfc_cq_event *cq_event;
9985         unsigned long iflags;
9986
9987         spin_lock_irqsave(&phba->hbalock, iflags);
9988         cq_event = __lpfc_sli4_cq_event_alloc(phba);
9989         spin_unlock_irqrestore(&phba->hbalock, iflags);
9990         return cq_event;
9991 }
9992
9993 /**
9994  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9995  * @phba: pointer to lpfc hba data structure.
9996  * @cq_event: pointer to the completion queue event to be freed.
9997  *
9998  * This routine is the lock free version of the API invoked to release a
9999  * completion-queue event back into the free pool.
10000  **/
10001 void
10002 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
10003                              struct lpfc_cq_event *cq_event)
10004 {
10005         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
10006 }
10007
10008 /**
10009  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
10010  * @phba: pointer to lpfc hba data structure.
10011  * @cq_event: pointer to the completion queue event to be freed.
10012  *
10013  * This routine is the lock version of the API invoked to release a
10014  * completion-queue event back into the free pool.
10015  **/
10016 void
10017 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
10018                            struct lpfc_cq_event *cq_event)
10019 {
10020         unsigned long iflags;
10021         spin_lock_irqsave(&phba->hbalock, iflags);
10022         __lpfc_sli4_cq_event_release(phba, cq_event);
10023         spin_unlock_irqrestore(&phba->hbalock, iflags);
10024 }
10025
10026 /**
10027  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
10028  * @phba: pointer to lpfc hba data structure.
10029  *
10030  * This routine is to free all the pending completion-queue events to the
10031  * back into the free pool for device reset.
10032  **/
10033 static void
10034 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
10035 {
10036         LIST_HEAD(cqelist);
10037         struct lpfc_cq_event *cqe;
10038         unsigned long iflags;
10039
10040         /* Retrieve all the pending WCQEs from pending WCQE lists */
10041         spin_lock_irqsave(&phba->hbalock, iflags);
10042         /* Pending FCP XRI abort events */
10043         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
10044                          &cqelist);
10045         /* Pending ELS XRI abort events */
10046         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
10047                          &cqelist);
10048         /* Pending asynnc events */
10049         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
10050                          &cqelist);
10051         spin_unlock_irqrestore(&phba->hbalock, iflags);
10052
10053         while (!list_empty(&cqelist)) {
10054                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
10055                 lpfc_sli4_cq_event_release(phba, cqe);
10056         }
10057 }
10058
10059 /**
10060  * lpfc_pci_function_reset - Reset pci function.
10061  * @phba: pointer to lpfc hba data structure.
10062  *
10063  * This routine is invoked to request a PCI function reset. It will destroys
10064  * all resources assigned to the PCI function which originates this request.
10065  *
10066  * Return codes
10067  *      0 - successful
10068  *      -ENOMEM - No available memory
10069  *      -EIO - The mailbox failed to complete successfully.
10070  **/
10071 int
10072 lpfc_pci_function_reset(struct lpfc_hba *phba)
10073 {
10074         LPFC_MBOXQ_t *mboxq;
10075         uint32_t rc = 0, if_type;
10076         uint32_t shdr_status, shdr_add_status;
10077         uint32_t rdy_chk;
10078         uint32_t port_reset = 0;
10079         union lpfc_sli4_cfg_shdr *shdr;
10080         struct lpfc_register reg_data;
10081         uint16_t devid;
10082
10083         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10084         switch (if_type) {
10085         case LPFC_SLI_INTF_IF_TYPE_0:
10086                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
10087                                                        GFP_KERNEL);
10088                 if (!mboxq) {
10089                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10090                                         "0494 Unable to allocate memory for "
10091                                         "issuing SLI_FUNCTION_RESET mailbox "
10092                                         "command\n");
10093                         return -ENOMEM;
10094                 }
10095
10096                 /* Setup PCI function reset mailbox-ioctl command */
10097                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10098                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
10099                                  LPFC_SLI4_MBX_EMBED);
10100                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10101                 shdr = (union lpfc_sli4_cfg_shdr *)
10102                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
10103                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10104                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
10105                                          &shdr->response);
10106                 if (rc != MBX_TIMEOUT)
10107                         mempool_free(mboxq, phba->mbox_mem_pool);
10108                 if (shdr_status || shdr_add_status || rc) {
10109                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10110                                         "0495 SLI_FUNCTION_RESET mailbox "
10111                                         "failed with status x%x add_status x%x,"
10112                                         " mbx status x%x\n",
10113                                         shdr_status, shdr_add_status, rc);
10114                         rc = -ENXIO;
10115                 }
10116                 break;
10117         case LPFC_SLI_INTF_IF_TYPE_2:
10118         case LPFC_SLI_INTF_IF_TYPE_6:
10119 wait:
10120                 /*
10121                  * Poll the Port Status Register and wait for RDY for
10122                  * up to 30 seconds. If the port doesn't respond, treat
10123                  * it as an error.
10124                  */
10125                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
10126                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
10127                                 STATUSregaddr, &reg_data.word0)) {
10128                                 rc = -ENODEV;
10129                                 goto out;
10130                         }
10131                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
10132                                 break;
10133                         msleep(20);
10134                 }
10135
10136                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
10137                         phba->work_status[0] = readl(
10138                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
10139                         phba->work_status[1] = readl(
10140                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
10141                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10142                                         "2890 Port not ready, port status reg "
10143                                         "0x%x error 1=0x%x, error 2=0x%x\n",
10144                                         reg_data.word0,
10145                                         phba->work_status[0],
10146                                         phba->work_status[1]);
10147                         rc = -ENODEV;
10148                         goto out;
10149                 }
10150
10151                 if (!port_reset) {
10152                         /*
10153                          * Reset the port now
10154                          */
10155                         reg_data.word0 = 0;
10156                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
10157                                LPFC_SLIPORT_LITTLE_ENDIAN);
10158                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
10159                                LPFC_SLIPORT_INIT_PORT);
10160                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
10161                                CTRLregaddr);
10162                         /* flush */
10163                         pci_read_config_word(phba->pcidev,
10164                                              PCI_DEVICE_ID, &devid);
10165
10166                         port_reset = 1;
10167                         msleep(20);
10168                         goto wait;
10169                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
10170                         rc = -ENODEV;
10171                         goto out;
10172                 }
10173                 break;
10174
10175         case LPFC_SLI_INTF_IF_TYPE_1:
10176         default:
10177                 break;
10178         }
10179
10180 out:
10181         /* Catch the not-ready port failure after a port reset. */
10182         if (rc) {
10183                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10184                                 "3317 HBA not functional: IP Reset Failed "
10185                                 "try: echo fw_reset > board_mode\n");
10186                 rc = -ENODEV;
10187         }
10188
10189         return rc;
10190 }
10191
10192 /**
10193  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
10194  * @phba: pointer to lpfc hba data structure.
10195  *
10196  * This routine is invoked to set up the PCI device memory space for device
10197  * with SLI-4 interface spec.
10198  *
10199  * Return codes
10200  *      0 - successful
10201  *      other values - error
10202  **/
10203 static int
10204 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
10205 {
10206         struct pci_dev *pdev = phba->pcidev;
10207         unsigned long bar0map_len, bar1map_len, bar2map_len;
10208         int error;
10209         uint32_t if_type;
10210
10211         if (!pdev)
10212                 return -ENODEV;
10213
10214         /* Set the device DMA mask size */
10215         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
10216         if (error)
10217                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
10218         if (error)
10219                 return error;
10220
10221         /*
10222          * The BARs and register set definitions and offset locations are
10223          * dependent on the if_type.
10224          */
10225         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
10226                                   &phba->sli4_hba.sli_intf.word0)) {
10227                 return -ENODEV;
10228         }
10229
10230         /* There is no SLI3 failback for SLI4 devices. */
10231         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
10232             LPFC_SLI_INTF_VALID) {
10233                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10234                                 "2894 SLI_INTF reg contents invalid "
10235                                 "sli_intf reg 0x%x\n",
10236                                 phba->sli4_hba.sli_intf.word0);
10237                 return -ENODEV;
10238         }
10239
10240         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10241         /*
10242          * Get the bus address of SLI4 device Bar regions and the
10243          * number of bytes required by each mapping. The mapping of the
10244          * particular PCI BARs regions is dependent on the type of
10245          * SLI4 device.
10246          */
10247         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
10248                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
10249                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
10250
10251                 /*
10252                  * Map SLI4 PCI Config Space Register base to a kernel virtual
10253                  * addr
10254                  */
10255                 phba->sli4_hba.conf_regs_memmap_p =
10256                         ioremap(phba->pci_bar0_map, bar0map_len);
10257                 if (!phba->sli4_hba.conf_regs_memmap_p) {
10258                         dev_printk(KERN_ERR, &pdev->dev,
10259                                    "ioremap failed for SLI4 PCI config "
10260                                    "registers.\n");
10261                         return -ENODEV;
10262                 }
10263                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
10264                 /* Set up BAR0 PCI config space register memory map */
10265                 lpfc_sli4_bar0_register_memmap(phba, if_type);
10266         } else {
10267                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
10268                 bar0map_len = pci_resource_len(pdev, 1);
10269                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10270                         dev_printk(KERN_ERR, &pdev->dev,
10271                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
10272                         return -ENODEV;
10273                 }
10274                 phba->sli4_hba.conf_regs_memmap_p =
10275                                 ioremap(phba->pci_bar0_map, bar0map_len);
10276                 if (!phba->sli4_hba.conf_regs_memmap_p) {
10277                         dev_printk(KERN_ERR, &pdev->dev,
10278                                 "ioremap failed for SLI4 PCI config "
10279                                 "registers.\n");
10280                         return -ENODEV;
10281                 }
10282                 lpfc_sli4_bar0_register_memmap(phba, if_type);
10283         }
10284
10285         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10286                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
10287                         /*
10288                          * Map SLI4 if type 0 HBA Control Register base to a
10289                          * kernel virtual address and setup the registers.
10290                          */
10291                         phba->pci_bar1_map = pci_resource_start(pdev,
10292                                                                 PCI_64BIT_BAR2);
10293                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10294                         phba->sli4_hba.ctrl_regs_memmap_p =
10295                                         ioremap(phba->pci_bar1_map,
10296                                                 bar1map_len);
10297                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
10298                                 dev_err(&pdev->dev,
10299                                            "ioremap failed for SLI4 HBA "
10300                                             "control registers.\n");
10301                                 error = -ENOMEM;
10302                                 goto out_iounmap_conf;
10303                         }
10304                         phba->pci_bar2_memmap_p =
10305                                          phba->sli4_hba.ctrl_regs_memmap_p;
10306                         lpfc_sli4_bar1_register_memmap(phba, if_type);
10307                 } else {
10308                         error = -ENOMEM;
10309                         goto out_iounmap_conf;
10310                 }
10311         }
10312
10313         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
10314             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
10315                 /*
10316                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
10317                  * virtual address and setup the registers.
10318                  */
10319                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
10320                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10321                 phba->sli4_hba.drbl_regs_memmap_p =
10322                                 ioremap(phba->pci_bar1_map, bar1map_len);
10323                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
10324                         dev_err(&pdev->dev,
10325                            "ioremap failed for SLI4 HBA doorbell registers.\n");
10326                         error = -ENOMEM;
10327                         goto out_iounmap_conf;
10328                 }
10329                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
10330                 lpfc_sli4_bar1_register_memmap(phba, if_type);
10331         }
10332
10333         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10334                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10335                         /*
10336                          * Map SLI4 if type 0 HBA Doorbell Register base to
10337                          * a kernel virtual address and setup the registers.
10338                          */
10339                         phba->pci_bar2_map = pci_resource_start(pdev,
10340                                                                 PCI_64BIT_BAR4);
10341                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10342                         phba->sli4_hba.drbl_regs_memmap_p =
10343                                         ioremap(phba->pci_bar2_map,
10344                                                 bar2map_len);
10345                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
10346                                 dev_err(&pdev->dev,
10347                                            "ioremap failed for SLI4 HBA"
10348                                            " doorbell registers.\n");
10349                                 error = -ENOMEM;
10350                                 goto out_iounmap_ctrl;
10351                         }
10352                         phba->pci_bar4_memmap_p =
10353                                         phba->sli4_hba.drbl_regs_memmap_p;
10354                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
10355                         if (error)
10356                                 goto out_iounmap_all;
10357                 } else {
10358                         error = -ENOMEM;
10359                         goto out_iounmap_all;
10360                 }
10361         }
10362
10363         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
10364             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10365                 /*
10366                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
10367                  * virtual address and setup the registers.
10368                  */
10369                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
10370                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10371                 phba->sli4_hba.dpp_regs_memmap_p =
10372                                 ioremap(phba->pci_bar2_map, bar2map_len);
10373                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
10374                         dev_err(&pdev->dev,
10375                            "ioremap failed for SLI4 HBA dpp registers.\n");
10376                         error = -ENOMEM;
10377                         goto out_iounmap_ctrl;
10378                 }
10379                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
10380         }
10381
10382         /* Set up the EQ/CQ register handeling functions now */
10383         switch (if_type) {
10384         case LPFC_SLI_INTF_IF_TYPE_0:
10385         case LPFC_SLI_INTF_IF_TYPE_2:
10386                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
10387                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
10388                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
10389                 break;
10390         case LPFC_SLI_INTF_IF_TYPE_6:
10391                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
10392                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
10393                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
10394                 break;
10395         default:
10396                 break;
10397         }
10398
10399         return 0;
10400
10401 out_iounmap_all:
10402         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10403 out_iounmap_ctrl:
10404         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10405 out_iounmap_conf:
10406         iounmap(phba->sli4_hba.conf_regs_memmap_p);
10407
10408         return error;
10409 }
10410
10411 /**
10412  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
10413  * @phba: pointer to lpfc hba data structure.
10414  *
10415  * This routine is invoked to unset the PCI device memory space for device
10416  * with SLI-4 interface spec.
10417  **/
10418 static void
10419 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
10420 {
10421         uint32_t if_type;
10422         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10423
10424         switch (if_type) {
10425         case LPFC_SLI_INTF_IF_TYPE_0:
10426                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10427                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10428                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10429                 break;
10430         case LPFC_SLI_INTF_IF_TYPE_2:
10431                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10432                 break;
10433         case LPFC_SLI_INTF_IF_TYPE_6:
10434                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10435                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10436                 if (phba->sli4_hba.dpp_regs_memmap_p)
10437                         iounmap(phba->sli4_hba.dpp_regs_memmap_p);
10438                 break;
10439         case LPFC_SLI_INTF_IF_TYPE_1:
10440         default:
10441                 dev_printk(KERN_ERR, &phba->pcidev->dev,
10442                            "FATAL - unsupported SLI4 interface type - %d\n",
10443                            if_type);
10444                 break;
10445         }
10446 }
10447
10448 /**
10449  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
10450  * @phba: pointer to lpfc hba data structure.
10451  *
10452  * This routine is invoked to enable the MSI-X interrupt vectors to device
10453  * with SLI-3 interface specs.
10454  *
10455  * Return codes
10456  *   0 - successful
10457  *   other values - error
10458  **/
10459 static int
10460 lpfc_sli_enable_msix(struct lpfc_hba *phba)
10461 {
10462         int rc;
10463         LPFC_MBOXQ_t *pmb;
10464
10465         /* Set up MSI-X multi-message vectors */
10466         rc = pci_alloc_irq_vectors(phba->pcidev,
10467                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
10468         if (rc < 0) {
10469                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10470                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
10471                 goto vec_fail_out;
10472         }
10473
10474         /*
10475          * Assign MSI-X vectors to interrupt handlers
10476          */
10477
10478         /* vector-0 is associated to slow-path handler */
10479         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
10480                          &lpfc_sli_sp_intr_handler, 0,
10481                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
10482         if (rc) {
10483                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10484                                 "0421 MSI-X slow-path request_irq failed "
10485                                 "(%d)\n", rc);
10486                 goto msi_fail_out;
10487         }
10488
10489         /* vector-1 is associated to fast-path handler */
10490         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
10491                          &lpfc_sli_fp_intr_handler, 0,
10492                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
10493
10494         if (rc) {
10495                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10496                                 "0429 MSI-X fast-path request_irq failed "
10497                                 "(%d)\n", rc);
10498                 goto irq_fail_out;
10499         }
10500
10501         /*
10502          * Configure HBA MSI-X attention conditions to messages
10503          */
10504         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10505
10506         if (!pmb) {
10507                 rc = -ENOMEM;
10508                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10509                                 "0474 Unable to allocate memory for issuing "
10510                                 "MBOX_CONFIG_MSI command\n");
10511                 goto mem_fail_out;
10512         }
10513         rc = lpfc_config_msi(phba, pmb);
10514         if (rc)
10515                 goto mbx_fail_out;
10516         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10517         if (rc != MBX_SUCCESS) {
10518                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
10519                                 "0351 Config MSI mailbox command failed, "
10520                                 "mbxCmd x%x, mbxStatus x%x\n",
10521                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
10522                 goto mbx_fail_out;
10523         }
10524
10525         /* Free memory allocated for mailbox command */
10526         mempool_free(pmb, phba->mbox_mem_pool);
10527         return rc;
10528
10529 mbx_fail_out:
10530         /* Free memory allocated for mailbox command */
10531         mempool_free(pmb, phba->mbox_mem_pool);
10532
10533 mem_fail_out:
10534         /* free the irq already requested */
10535         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
10536
10537 irq_fail_out:
10538         /* free the irq already requested */
10539         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
10540
10541 msi_fail_out:
10542         /* Unconfigure MSI-X capability structure */
10543         pci_free_irq_vectors(phba->pcidev);
10544
10545 vec_fail_out:
10546         return rc;
10547 }
10548
10549 /**
10550  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
10551  * @phba: pointer to lpfc hba data structure.
10552  *
10553  * This routine is invoked to enable the MSI interrupt mode to device with
10554  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
10555  * enable the MSI vector. The device driver is responsible for calling the
10556  * request_irq() to register MSI vector with a interrupt the handler, which
10557  * is done in this function.
10558  *
10559  * Return codes
10560  *      0 - successful
10561  *      other values - error
10562  */
10563 static int
10564 lpfc_sli_enable_msi(struct lpfc_hba *phba)
10565 {
10566         int rc;
10567
10568         rc = pci_enable_msi(phba->pcidev);
10569         if (!rc)
10570                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10571                                 "0462 PCI enable MSI mode success.\n");
10572         else {
10573                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10574                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
10575                 return rc;
10576         }
10577
10578         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10579                          0, LPFC_DRIVER_NAME, phba);
10580         if (rc) {
10581                 pci_disable_msi(phba->pcidev);
10582                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10583                                 "0478 MSI request_irq failed (%d)\n", rc);
10584         }
10585         return rc;
10586 }
10587
10588 /**
10589  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
10590  * @phba: pointer to lpfc hba data structure.
10591  *
10592  * This routine is invoked to enable device interrupt and associate driver's
10593  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
10594  * spec. Depends on the interrupt mode configured to the driver, the driver
10595  * will try to fallback from the configured interrupt mode to an interrupt
10596  * mode which is supported by the platform, kernel, and device in the order
10597  * of:
10598  * MSI-X -> MSI -> IRQ.
10599  *
10600  * Return codes
10601  *   0 - successful
10602  *   other values - error
10603  **/
10604 static uint32_t
10605 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10606 {
10607         uint32_t intr_mode = LPFC_INTR_ERROR;
10608         int retval;
10609
10610         if (cfg_mode == 2) {
10611                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
10612                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
10613                 if (!retval) {
10614                         /* Now, try to enable MSI-X interrupt mode */
10615                         retval = lpfc_sli_enable_msix(phba);
10616                         if (!retval) {
10617                                 /* Indicate initialization to MSI-X mode */
10618                                 phba->intr_type = MSIX;
10619                                 intr_mode = 2;
10620                         }
10621                 }
10622         }
10623
10624         /* Fallback to MSI if MSI-X initialization failed */
10625         if (cfg_mode >= 1 && phba->intr_type == NONE) {
10626                 retval = lpfc_sli_enable_msi(phba);
10627                 if (!retval) {
10628                         /* Indicate initialization to MSI mode */
10629                         phba->intr_type = MSI;
10630                         intr_mode = 1;
10631                 }
10632         }
10633
10634         /* Fallback to INTx if both MSI-X/MSI initalization failed */
10635         if (phba->intr_type == NONE) {
10636                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10637                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10638                 if (!retval) {
10639                         /* Indicate initialization to INTx mode */
10640                         phba->intr_type = INTx;
10641                         intr_mode = 0;
10642                 }
10643         }
10644         return intr_mode;
10645 }
10646
10647 /**
10648  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
10649  * @phba: pointer to lpfc hba data structure.
10650  *
10651  * This routine is invoked to disable device interrupt and disassociate the
10652  * driver's interrupt handler(s) from interrupt vector(s) to device with
10653  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
10654  * release the interrupt vector(s) for the message signaled interrupt.
10655  **/
10656 static void
10657 lpfc_sli_disable_intr(struct lpfc_hba *phba)
10658 {
10659         int nr_irqs, i;
10660
10661         if (phba->intr_type == MSIX)
10662                 nr_irqs = LPFC_MSIX_VECTORS;
10663         else
10664                 nr_irqs = 1;
10665
10666         for (i = 0; i < nr_irqs; i++)
10667                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
10668         pci_free_irq_vectors(phba->pcidev);
10669
10670         /* Reset interrupt management states */
10671         phba->intr_type = NONE;
10672         phba->sli.slistat.sli_intr = 0;
10673 }
10674
10675 /**
10676  * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
10677  * @phba: pointer to lpfc hba data structure.
10678  * @id: EQ vector index or Hardware Queue index
10679  * @match: LPFC_FIND_BY_EQ = match by EQ
10680  *         LPFC_FIND_BY_HDWQ = match by Hardware Queue
10681  * Return the CPU that matches the selection criteria
10682  */
10683 static uint16_t
10684 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
10685 {
10686         struct lpfc_vector_map_info *cpup;
10687         int cpu;
10688
10689         /* Loop through all CPUs */
10690         for_each_present_cpu(cpu) {
10691                 cpup = &phba->sli4_hba.cpu_map[cpu];
10692
10693                 /* If we are matching by EQ, there may be multiple CPUs using
10694                  * using the same vector, so select the one with
10695                  * LPFC_CPU_FIRST_IRQ set.
10696                  */
10697                 if ((match == LPFC_FIND_BY_EQ) &&
10698                     (cpup->flag & LPFC_CPU_FIRST_IRQ) &&
10699                     (cpup->eq == id))
10700                         return cpu;
10701
10702                 /* If matching by HDWQ, select the first CPU that matches */
10703                 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
10704                         return cpu;
10705         }
10706         return 0;
10707 }
10708
10709 #ifdef CONFIG_X86
10710 /**
10711  * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
10712  * @phba: pointer to lpfc hba data structure.
10713  * @cpu: CPU map index
10714  * @phys_id: CPU package physical id
10715  * @core_id: CPU core id
10716  */
10717 static int
10718 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
10719                 uint16_t phys_id, uint16_t core_id)
10720 {
10721         struct lpfc_vector_map_info *cpup;
10722         int idx;
10723
10724         for_each_present_cpu(idx) {
10725                 cpup = &phba->sli4_hba.cpu_map[idx];
10726                 /* Does the cpup match the one we are looking for */
10727                 if ((cpup->phys_id == phys_id) &&
10728                     (cpup->core_id == core_id) &&
10729                     (cpu != idx))
10730                         return 1;
10731         }
10732         return 0;
10733 }
10734 #endif
10735
10736 /*
10737  * lpfc_assign_eq_map_info - Assigns eq for vector_map structure
10738  * @phba: pointer to lpfc hba data structure.
10739  * @eqidx: index for eq and irq vector
10740  * @flag: flags to set for vector_map structure
10741  * @cpu: cpu used to index vector_map structure
10742  *
10743  * The routine assigns eq info into vector_map structure
10744  */
10745 static inline void
10746 lpfc_assign_eq_map_info(struct lpfc_hba *phba, uint16_t eqidx, uint16_t flag,
10747                         unsigned int cpu)
10748 {
10749         struct lpfc_vector_map_info *cpup = &phba->sli4_hba.cpu_map[cpu];
10750         struct lpfc_hba_eq_hdl *eqhdl = lpfc_get_eq_hdl(eqidx);
10751
10752         cpup->eq = eqidx;
10753         cpup->flag |= flag;
10754
10755         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10756                         "3336 Set Affinity: CPU %d irq %d eq %d flag x%x\n",
10757                         cpu, eqhdl->irq, cpup->eq, cpup->flag);
10758 }
10759
10760 /**
10761  * lpfc_cpu_map_array_init - Initialize cpu_map structure
10762  * @phba: pointer to lpfc hba data structure.
10763  *
10764  * The routine initializes the cpu_map array structure
10765  */
10766 static void
10767 lpfc_cpu_map_array_init(struct lpfc_hba *phba)
10768 {
10769         struct lpfc_vector_map_info *cpup;
10770         struct lpfc_eq_intr_info *eqi;
10771         int cpu;
10772
10773         for_each_possible_cpu(cpu) {
10774                 cpup = &phba->sli4_hba.cpu_map[cpu];
10775                 cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
10776                 cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
10777                 cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
10778                 cpup->eq = LPFC_VECTOR_MAP_EMPTY;
10779                 cpup->flag = 0;
10780                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, cpu);
10781                 INIT_LIST_HEAD(&eqi->list);
10782                 eqi->icnt = 0;
10783         }
10784 }
10785
10786 /**
10787  * lpfc_hba_eq_hdl_array_init - Initialize hba_eq_hdl structure
10788  * @phba: pointer to lpfc hba data structure.
10789  *
10790  * The routine initializes the hba_eq_hdl array structure
10791  */
10792 static void
10793 lpfc_hba_eq_hdl_array_init(struct lpfc_hba *phba)
10794 {
10795         struct lpfc_hba_eq_hdl *eqhdl;
10796         int i;
10797
10798         for (i = 0; i < phba->cfg_irq_chann; i++) {
10799                 eqhdl = lpfc_get_eq_hdl(i);
10800                 eqhdl->irq = LPFC_VECTOR_MAP_EMPTY;
10801                 eqhdl->phba = phba;
10802         }
10803 }
10804
10805 /**
10806  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
10807  * @phba: pointer to lpfc hba data structure.
10808  * @vectors: number of msix vectors allocated.
10809  *
10810  * The routine will figure out the CPU affinity assignment for every
10811  * MSI-X vector allocated for the HBA.
10812  * In addition, the CPU to IO channel mapping will be calculated
10813  * and the phba->sli4_hba.cpu_map array will reflect this.
10814  */
10815 static void
10816 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
10817 {
10818         int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu;
10819         int max_phys_id, min_phys_id;
10820         int max_core_id, min_core_id;
10821         struct lpfc_vector_map_info *cpup;
10822         struct lpfc_vector_map_info *new_cpup;
10823 #ifdef CONFIG_X86
10824         struct cpuinfo_x86 *cpuinfo;
10825 #endif
10826
10827         max_phys_id = 0;
10828         min_phys_id = LPFC_VECTOR_MAP_EMPTY;
10829         max_core_id = 0;
10830         min_core_id = LPFC_VECTOR_MAP_EMPTY;
10831
10832         /* Update CPU map with physical id and core id of each CPU */
10833         for_each_present_cpu(cpu) {
10834                 cpup = &phba->sli4_hba.cpu_map[cpu];
10835 #ifdef CONFIG_X86
10836                 cpuinfo = &cpu_data(cpu);
10837                 cpup->phys_id = cpuinfo->phys_proc_id;
10838                 cpup->core_id = cpuinfo->cpu_core_id;
10839                 if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id))
10840                         cpup->flag |= LPFC_CPU_MAP_HYPER;
10841 #else
10842                 /* No distinction between CPUs for other platforms */
10843                 cpup->phys_id = 0;
10844                 cpup->core_id = cpu;
10845 #endif
10846
10847                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10848                                 "3328 CPU %d physid %d coreid %d flag x%x\n",
10849                                 cpu, cpup->phys_id, cpup->core_id, cpup->flag);
10850
10851                 if (cpup->phys_id > max_phys_id)
10852                         max_phys_id = cpup->phys_id;
10853                 if (cpup->phys_id < min_phys_id)
10854                         min_phys_id = cpup->phys_id;
10855
10856                 if (cpup->core_id > max_core_id)
10857                         max_core_id = cpup->core_id;
10858                 if (cpup->core_id < min_core_id)
10859                         min_core_id = cpup->core_id;
10860         }
10861
10862         /* After looking at each irq vector assigned to this pcidev, its
10863          * possible to see that not ALL CPUs have been accounted for.
10864          * Next we will set any unassigned (unaffinitized) cpu map
10865          * entries to a IRQ on the same phys_id.
10866          */
10867         first_cpu = cpumask_first(cpu_present_mask);
10868         start_cpu = first_cpu;
10869
10870         for_each_present_cpu(cpu) {
10871                 cpup = &phba->sli4_hba.cpu_map[cpu];
10872
10873                 /* Is this CPU entry unassigned */
10874                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
10875                         /* Mark CPU as IRQ not assigned by the kernel */
10876                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
10877
10878                         /* If so, find a new_cpup thats on the the SAME
10879                          * phys_id as cpup. start_cpu will start where we
10880                          * left off so all unassigned entries don't get assgined
10881                          * the IRQ of the first entry.
10882                          */
10883                         new_cpu = start_cpu;
10884                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
10885                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
10886                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
10887                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY) &&
10888                                     (new_cpup->phys_id == cpup->phys_id))
10889                                         goto found_same;
10890                                 new_cpu = cpumask_next(
10891                                         new_cpu, cpu_present_mask);
10892                                 if (new_cpu == nr_cpumask_bits)
10893                                         new_cpu = first_cpu;
10894                         }
10895                         /* At this point, we leave the CPU as unassigned */
10896                         continue;
10897 found_same:
10898                         /* We found a matching phys_id, so copy the IRQ info */
10899                         cpup->eq = new_cpup->eq;
10900
10901                         /* Bump start_cpu to the next slot to minmize the
10902                          * chance of having multiple unassigned CPU entries
10903                          * selecting the same IRQ.
10904                          */
10905                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
10906                         if (start_cpu == nr_cpumask_bits)
10907                                 start_cpu = first_cpu;
10908
10909                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10910                                         "3337 Set Affinity: CPU %d "
10911                                         "eq %d from peer cpu %d same "
10912                                         "phys_id (%d)\n",
10913                                         cpu, cpup->eq, new_cpu,
10914                                         cpup->phys_id);
10915                 }
10916         }
10917
10918         /* Set any unassigned cpu map entries to a IRQ on any phys_id */
10919         start_cpu = first_cpu;
10920
10921         for_each_present_cpu(cpu) {
10922                 cpup = &phba->sli4_hba.cpu_map[cpu];
10923
10924                 /* Is this entry unassigned */
10925                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
10926                         /* Mark it as IRQ not assigned by the kernel */
10927                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
10928
10929                         /* If so, find a new_cpup thats on ANY phys_id
10930                          * as the cpup. start_cpu will start where we
10931                          * left off so all unassigned entries don't get
10932                          * assigned the IRQ of the first entry.
10933                          */
10934                         new_cpu = start_cpu;
10935                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
10936                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
10937                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
10938                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY))
10939                                         goto found_any;
10940                                 new_cpu = cpumask_next(
10941                                         new_cpu, cpu_present_mask);
10942                                 if (new_cpu == nr_cpumask_bits)
10943                                         new_cpu = first_cpu;
10944                         }
10945                         /* We should never leave an entry unassigned */
10946                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10947                                         "3339 Set Affinity: CPU %d "
10948                                         "eq %d UNASSIGNED\n",
10949                                         cpup->hdwq, cpup->eq);
10950                         continue;
10951 found_any:
10952                         /* We found an available entry, copy the IRQ info */
10953                         cpup->eq = new_cpup->eq;
10954
10955                         /* Bump start_cpu to the next slot to minmize the
10956                          * chance of having multiple unassigned CPU entries
10957                          * selecting the same IRQ.
10958                          */
10959                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
10960                         if (start_cpu == nr_cpumask_bits)
10961                                 start_cpu = first_cpu;
10962
10963                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10964                                         "3338 Set Affinity: CPU %d "
10965                                         "eq %d from peer cpu %d (%d/%d)\n",
10966                                         cpu, cpup->eq, new_cpu,
10967                                         new_cpup->phys_id, new_cpup->core_id);
10968                 }
10969         }
10970
10971         /* Assign hdwq indices that are unique across all cpus in the map
10972          * that are also FIRST_CPUs.
10973          */
10974         idx = 0;
10975         for_each_present_cpu(cpu) {
10976                 cpup = &phba->sli4_hba.cpu_map[cpu];
10977
10978                 /* Only FIRST IRQs get a hdwq index assignment. */
10979                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
10980                         continue;
10981
10982                 /* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */
10983                 cpup->hdwq = idx;
10984                 idx++;
10985                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10986                                 "3333 Set Affinity: CPU %d (phys %d core %d): "
10987                                 "hdwq %d eq %d flg x%x\n",
10988                                 cpu, cpup->phys_id, cpup->core_id,
10989                                 cpup->hdwq, cpup->eq, cpup->flag);
10990         }
10991         /* Associate a hdwq with each cpu_map entry
10992          * This will be 1 to 1 - hdwq to cpu, unless there are less
10993          * hardware queues then CPUs. For that case we will just round-robin
10994          * the available hardware queues as they get assigned to CPUs.
10995          * The next_idx is the idx from the FIRST_CPU loop above to account
10996          * for irq_chann < hdwq.  The idx is used for round-robin assignments
10997          * and needs to start at 0.
10998          */
10999         next_idx = idx;
11000         start_cpu = 0;
11001         idx = 0;
11002         for_each_present_cpu(cpu) {
11003                 cpup = &phba->sli4_hba.cpu_map[cpu];
11004
11005                 /* FIRST cpus are already mapped. */
11006                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
11007                         continue;
11008
11009                 /* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq
11010                  * of the unassigned cpus to the next idx so that all
11011                  * hdw queues are fully utilized.
11012                  */
11013                 if (next_idx < phba->cfg_hdw_queue) {
11014                         cpup->hdwq = next_idx;
11015                         next_idx++;
11016                         continue;
11017                 }
11018
11019                 /* Not a First CPU and all hdw_queues are used.  Reuse a
11020                  * Hardware Queue for another CPU, so be smart about it
11021                  * and pick one that has its IRQ/EQ mapped to the same phys_id
11022                  * (CPU package) and core_id.
11023                  */
11024                 new_cpu = start_cpu;
11025                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11026                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11027                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
11028                             new_cpup->phys_id == cpup->phys_id &&
11029                             new_cpup->core_id == cpup->core_id) {
11030                                 goto found_hdwq;
11031                         }
11032                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
11033                         if (new_cpu == nr_cpumask_bits)
11034                                 new_cpu = first_cpu;
11035                 }
11036
11037                 /* If we can't match both phys_id and core_id,
11038                  * settle for just a phys_id match.
11039                  */
11040                 new_cpu = start_cpu;
11041                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11042                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11043                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
11044                             new_cpup->phys_id == cpup->phys_id)
11045                                 goto found_hdwq;
11046
11047                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
11048                         if (new_cpu == nr_cpumask_bits)
11049                                 new_cpu = first_cpu;
11050                 }
11051
11052                 /* Otherwise just round robin on cfg_hdw_queue */
11053                 cpup->hdwq = idx % phba->cfg_hdw_queue;
11054                 idx++;
11055                 goto logit;
11056  found_hdwq:
11057                 /* We found an available entry, copy the IRQ info */
11058                 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
11059                 if (start_cpu == nr_cpumask_bits)
11060                         start_cpu = first_cpu;
11061                 cpup->hdwq = new_cpup->hdwq;
11062  logit:
11063                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11064                                 "3335 Set Affinity: CPU %d (phys %d core %d): "
11065                                 "hdwq %d eq %d flg x%x\n",
11066                                 cpu, cpup->phys_id, cpup->core_id,
11067                                 cpup->hdwq, cpup->eq, cpup->flag);
11068         }
11069
11070         /*
11071          * Initialize the cpu_map slots for not-present cpus in case
11072          * a cpu is hot-added. Perform a simple hdwq round robin assignment.
11073          */
11074         idx = 0;
11075         for_each_possible_cpu(cpu) {
11076                 cpup = &phba->sli4_hba.cpu_map[cpu];
11077                 if (cpup->hdwq != LPFC_VECTOR_MAP_EMPTY)
11078                         continue;
11079
11080                 cpup->hdwq = idx++ % phba->cfg_hdw_queue;
11081                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11082                                 "3340 Set Affinity: not present "
11083                                 "CPU %d hdwq %d\n",
11084                                 cpu, cpup->hdwq);
11085         }
11086
11087         /* The cpu_map array will be used later during initialization
11088          * when EQ / CQ / WQs are allocated and configured.
11089          */
11090         return;
11091 }
11092
11093 /**
11094  * lpfc_cpuhp_get_eq
11095  *
11096  * @phba:   pointer to lpfc hba data structure.
11097  * @cpu:    cpu going offline
11098  * @eqlist:
11099  */
11100 static int
11101 lpfc_cpuhp_get_eq(struct lpfc_hba *phba, unsigned int cpu,
11102                   struct list_head *eqlist)
11103 {
11104         const struct cpumask *maskp;
11105         struct lpfc_queue *eq;
11106         struct cpumask *tmp;
11107         u16 idx;
11108
11109         tmp = kzalloc(cpumask_size(), GFP_KERNEL);
11110         if (!tmp)
11111                 return -ENOMEM;
11112
11113         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11114                 maskp = pci_irq_get_affinity(phba->pcidev, idx);
11115                 if (!maskp)
11116                         continue;
11117                 /*
11118                  * if irq is not affinitized to the cpu going
11119                  * then we don't need to poll the eq attached
11120                  * to it.
11121                  */
11122                 if (!cpumask_and(tmp, maskp, cpumask_of(cpu)))
11123                         continue;
11124                 /* get the cpus that are online and are affini-
11125                  * tized to this irq vector.  If the count is
11126                  * more than 1 then cpuhp is not going to shut-
11127                  * down this vector.  Since this cpu has not
11128                  * gone offline yet, we need >1.
11129                  */
11130                 cpumask_and(tmp, maskp, cpu_online_mask);
11131                 if (cpumask_weight(tmp) > 1)
11132                         continue;
11133
11134                 /* Now that we have an irq to shutdown, get the eq
11135                  * mapped to this irq.  Note: multiple hdwq's in
11136                  * the software can share an eq, but eventually
11137                  * only eq will be mapped to this vector
11138                  */
11139                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
11140                 list_add(&eq->_poll_list, eqlist);
11141         }
11142         kfree(tmp);
11143         return 0;
11144 }
11145
11146 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba)
11147 {
11148         if (phba->sli_rev != LPFC_SLI_REV4)
11149                 return;
11150
11151         cpuhp_state_remove_instance_nocalls(lpfc_cpuhp_state,
11152                                             &phba->cpuhp);
11153         /*
11154          * unregistering the instance doesn't stop the polling
11155          * timer. Wait for the poll timer to retire.
11156          */
11157         synchronize_rcu();
11158         del_timer_sync(&phba->cpuhp_poll_timer);
11159 }
11160
11161 static void lpfc_cpuhp_remove(struct lpfc_hba *phba)
11162 {
11163         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
11164                 return;
11165
11166         __lpfc_cpuhp_remove(phba);
11167 }
11168
11169 static void lpfc_cpuhp_add(struct lpfc_hba *phba)
11170 {
11171         if (phba->sli_rev != LPFC_SLI_REV4)
11172                 return;
11173
11174         rcu_read_lock();
11175
11176         if (!list_empty(&phba->poll_list)) {
11177                 timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
11178                 mod_timer(&phba->cpuhp_poll_timer,
11179                           jiffies + msecs_to_jiffies(LPFC_POLL_HB));
11180         }
11181
11182         rcu_read_unlock();
11183
11184         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state,
11185                                          &phba->cpuhp);
11186 }
11187
11188 static int __lpfc_cpuhp_checks(struct lpfc_hba *phba, int *retval)
11189 {
11190         if (phba->pport->load_flag & FC_UNLOADING) {
11191                 *retval = -EAGAIN;
11192                 return true;
11193         }
11194
11195         if (phba->sli_rev != LPFC_SLI_REV4) {
11196                 *retval = 0;
11197                 return true;
11198         }
11199
11200         /* proceed with the hotplug */
11201         return false;
11202 }
11203
11204 /**
11205  * lpfc_irq_set_aff - set IRQ affinity
11206  * @eqhdl: EQ handle
11207  * @cpu: cpu to set affinity
11208  *
11209  **/
11210 static inline void
11211 lpfc_irq_set_aff(struct lpfc_hba_eq_hdl *eqhdl, unsigned int cpu)
11212 {
11213         cpumask_clear(&eqhdl->aff_mask);
11214         cpumask_set_cpu(cpu, &eqhdl->aff_mask);
11215         irq_set_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
11216         irq_set_affinity_hint(eqhdl->irq, &eqhdl->aff_mask);
11217 }
11218
11219 /**
11220  * lpfc_irq_clear_aff - clear IRQ affinity
11221  * @eqhdl: EQ handle
11222  *
11223  **/
11224 static inline void
11225 lpfc_irq_clear_aff(struct lpfc_hba_eq_hdl *eqhdl)
11226 {
11227         cpumask_clear(&eqhdl->aff_mask);
11228         irq_clear_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
11229         irq_set_affinity_hint(eqhdl->irq, &eqhdl->aff_mask);
11230 }
11231
11232 /**
11233  * lpfc_irq_rebalance - rebalances IRQ affinity according to cpuhp event
11234  * @phba: pointer to HBA context object.
11235  * @cpu: cpu going offline/online
11236  * @offline: true, cpu is going offline. false, cpu is coming online.
11237  *
11238  * If cpu is going offline, we'll try our best effort to find the next
11239  * online cpu on the phba's NUMA node and migrate all offlining IRQ affinities.
11240  *
11241  * If cpu is coming online, reaffinitize the IRQ back to the onlineng cpu.
11242  *
11243  * Note: Call only if cfg_irq_numa is enabled, otherwise rely on
11244  *       PCI_IRQ_AFFINITY to auto-manage IRQ affinity.
11245  *
11246  **/
11247 static void
11248 lpfc_irq_rebalance(struct lpfc_hba *phba, unsigned int cpu, bool offline)
11249 {
11250         struct lpfc_vector_map_info *cpup;
11251         struct cpumask *aff_mask;
11252         unsigned int cpu_select, cpu_next, idx;
11253         const struct cpumask *numa_mask;
11254
11255         if (!phba->cfg_irq_numa)
11256                 return;
11257
11258         numa_mask = &phba->sli4_hba.numa_mask;
11259
11260         if (!cpumask_test_cpu(cpu, numa_mask))
11261                 return;
11262
11263         cpup = &phba->sli4_hba.cpu_map[cpu];
11264
11265         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
11266                 return;
11267
11268         if (offline) {
11269                 /* Find next online CPU on NUMA node */
11270                 cpu_next = cpumask_next_wrap(cpu, numa_mask, cpu, true);
11271                 cpu_select = lpfc_next_online_numa_cpu(numa_mask, cpu_next);
11272
11273                 /* Found a valid CPU */
11274                 if ((cpu_select < nr_cpu_ids) && (cpu_select != cpu)) {
11275                         /* Go through each eqhdl and ensure offlining
11276                          * cpu aff_mask is migrated
11277                          */
11278                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11279                                 aff_mask = lpfc_get_aff_mask(idx);
11280
11281                                 /* Migrate affinity */
11282                                 if (cpumask_test_cpu(cpu, aff_mask))
11283                                         lpfc_irq_set_aff(lpfc_get_eq_hdl(idx),
11284                                                          cpu_select);
11285                         }
11286                 } else {
11287                         /* Rely on irqbalance if no online CPUs left on NUMA */
11288                         for (idx = 0; idx < phba->cfg_irq_chann; idx++)
11289                                 lpfc_irq_clear_aff(lpfc_get_eq_hdl(idx));
11290                 }
11291         } else {
11292                 /* Migrate affinity back to this CPU */
11293                 lpfc_irq_set_aff(lpfc_get_eq_hdl(cpup->eq), cpu);
11294         }
11295 }
11296
11297 static int lpfc_cpu_offline(unsigned int cpu, struct hlist_node *node)
11298 {
11299         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
11300         struct lpfc_queue *eq, *next;
11301         LIST_HEAD(eqlist);
11302         int retval;
11303
11304         if (!phba) {
11305                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
11306                 return 0;
11307         }
11308
11309         if (__lpfc_cpuhp_checks(phba, &retval))
11310                 return retval;
11311
11312         lpfc_irq_rebalance(phba, cpu, true);
11313
11314         retval = lpfc_cpuhp_get_eq(phba, cpu, &eqlist);
11315         if (retval)
11316                 return retval;
11317
11318         /* start polling on these eq's */
11319         list_for_each_entry_safe(eq, next, &eqlist, _poll_list) {
11320                 list_del_init(&eq->_poll_list);
11321                 lpfc_sli4_start_polling(eq);
11322         }
11323
11324         return 0;
11325 }
11326
11327 static int lpfc_cpu_online(unsigned int cpu, struct hlist_node *node)
11328 {
11329         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
11330         struct lpfc_queue *eq, *next;
11331         unsigned int n;
11332         int retval;
11333
11334         if (!phba) {
11335                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
11336                 return 0;
11337         }
11338
11339         if (__lpfc_cpuhp_checks(phba, &retval))
11340                 return retval;
11341
11342         lpfc_irq_rebalance(phba, cpu, false);
11343
11344         list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list) {
11345                 n = lpfc_find_cpu_handle(phba, eq->hdwq, LPFC_FIND_BY_HDWQ);
11346                 if (n == cpu)
11347                         lpfc_sli4_stop_polling(eq);
11348         }
11349
11350         return 0;
11351 }
11352
11353 /**
11354  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
11355  * @phba: pointer to lpfc hba data structure.
11356  *
11357  * This routine is invoked to enable the MSI-X interrupt vectors to device
11358  * with SLI-4 interface spec.  It also allocates MSI-X vectors and maps them
11359  * to cpus on the system.
11360  *
11361  * When cfg_irq_numa is enabled, the adapter will only allocate vectors for
11362  * the number of cpus on the same numa node as this adapter.  The vectors are
11363  * allocated without requesting OS affinity mapping.  A vector will be
11364  * allocated and assigned to each online and offline cpu.  If the cpu is
11365  * online, then affinity will be set to that cpu.  If the cpu is offline, then
11366  * affinity will be set to the nearest peer cpu within the numa node that is
11367  * online.  If there are no online cpus within the numa node, affinity is not
11368  * assigned and the OS may do as it pleases. Note: cpu vector affinity mapping
11369  * is consistent with the way cpu online/offline is handled when cfg_irq_numa is
11370  * configured.
11371  *
11372  * If numa mode is not enabled and there is more than 1 vector allocated, then
11373  * the driver relies on the managed irq interface where the OS assigns vector to
11374  * cpu affinity.  The driver will then use that affinity mapping to setup its
11375  * cpu mapping table.
11376  *
11377  * Return codes
11378  * 0 - successful
11379  * other values - error
11380  **/
11381 static int
11382 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
11383 {
11384         int vectors, rc, index;
11385         char *name;
11386         const struct cpumask *numa_mask = NULL;
11387         unsigned int cpu = 0, cpu_cnt = 0, cpu_select = nr_cpu_ids;
11388         struct lpfc_hba_eq_hdl *eqhdl;
11389         const struct cpumask *maskp;
11390         bool first;
11391         unsigned int flags = PCI_IRQ_MSIX;
11392
11393         /* Set up MSI-X multi-message vectors */
11394         vectors = phba->cfg_irq_chann;
11395
11396         if (phba->cfg_irq_numa) {
11397                 numa_mask = &phba->sli4_hba.numa_mask;
11398                 cpu_cnt = cpumask_weight(numa_mask);
11399                 vectors = min(phba->cfg_irq_chann, cpu_cnt);
11400
11401                 /* cpu: iterates over numa_mask including offline or online
11402                  * cpu_select: iterates over online numa_mask to set affinity
11403                  */
11404                 cpu = cpumask_first(numa_mask);
11405                 cpu_select = lpfc_next_online_numa_cpu(numa_mask, cpu);
11406         } else {
11407                 flags |= PCI_IRQ_AFFINITY;
11408         }
11409
11410         rc = pci_alloc_irq_vectors(phba->pcidev, 1, vectors, flags);
11411         if (rc < 0) {
11412                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11413                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
11414                 goto vec_fail_out;
11415         }
11416         vectors = rc;
11417
11418         /* Assign MSI-X vectors to interrupt handlers */
11419         for (index = 0; index < vectors; index++) {
11420                 eqhdl = lpfc_get_eq_hdl(index);
11421                 name = eqhdl->handler_name;
11422                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
11423                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
11424                          LPFC_DRIVER_HANDLER_NAME"%d", index);
11425
11426                 eqhdl->idx = index;
11427                 rc = request_irq(pci_irq_vector(phba->pcidev, index),
11428                          &lpfc_sli4_hba_intr_handler, 0,
11429                          name, eqhdl);
11430                 if (rc) {
11431                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11432                                         "0486 MSI-X fast-path (%d) "
11433                                         "request_irq failed (%d)\n", index, rc);
11434                         goto cfg_fail_out;
11435                 }
11436
11437                 eqhdl->irq = pci_irq_vector(phba->pcidev, index);
11438
11439                 if (phba->cfg_irq_numa) {
11440                         /* If found a neighboring online cpu, set affinity */
11441                         if (cpu_select < nr_cpu_ids)
11442                                 lpfc_irq_set_aff(eqhdl, cpu_select);
11443
11444                         /* Assign EQ to cpu_map */
11445                         lpfc_assign_eq_map_info(phba, index,
11446                                                 LPFC_CPU_FIRST_IRQ,
11447                                                 cpu);
11448
11449                         /* Iterate to next offline or online cpu in numa_mask */
11450                         cpu = cpumask_next(cpu, numa_mask);
11451
11452                         /* Find next online cpu in numa_mask to set affinity */
11453                         cpu_select = lpfc_next_online_numa_cpu(numa_mask, cpu);
11454                 } else if (vectors == 1) {
11455                         cpu = cpumask_first(cpu_present_mask);
11456                         lpfc_assign_eq_map_info(phba, index, LPFC_CPU_FIRST_IRQ,
11457                                                 cpu);
11458                 } else {
11459                         maskp = pci_irq_get_affinity(phba->pcidev, index);
11460
11461                         first = true;
11462                         /* Loop through all CPUs associated with vector index */
11463                         for_each_cpu_and(cpu, maskp, cpu_present_mask) {
11464                                 /* If this is the first CPU thats assigned to
11465                                  * this vector, set LPFC_CPU_FIRST_IRQ.
11466                                  */
11467                                 lpfc_assign_eq_map_info(phba, index,
11468                                                         first ?
11469                                                         LPFC_CPU_FIRST_IRQ : 0,
11470                                                         cpu);
11471                                 if (first)
11472                                         first = false;
11473                         }
11474                 }
11475         }
11476
11477         if (vectors != phba->cfg_irq_chann) {
11478                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11479                                 "3238 Reducing IO channels to match number of "
11480                                 "MSI-X vectors, requested %d got %d\n",
11481                                 phba->cfg_irq_chann, vectors);
11482                 if (phba->cfg_irq_chann > vectors)
11483                         phba->cfg_irq_chann = vectors;
11484         }
11485
11486         return rc;
11487
11488 cfg_fail_out:
11489         /* free the irq already requested */
11490         for (--index; index >= 0; index--) {
11491                 eqhdl = lpfc_get_eq_hdl(index);
11492                 lpfc_irq_clear_aff(eqhdl);
11493                 irq_set_affinity_hint(eqhdl->irq, NULL);
11494                 free_irq(eqhdl->irq, eqhdl);
11495         }
11496
11497         /* Unconfigure MSI-X capability structure */
11498         pci_free_irq_vectors(phba->pcidev);
11499
11500 vec_fail_out:
11501         return rc;
11502 }
11503
11504 /**
11505  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
11506  * @phba: pointer to lpfc hba data structure.
11507  *
11508  * This routine is invoked to enable the MSI interrupt mode to device with
11509  * SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is
11510  * called to enable the MSI vector. The device driver is responsible for
11511  * calling the request_irq() to register MSI vector with a interrupt the
11512  * handler, which is done in this function.
11513  *
11514  * Return codes
11515  *      0 - successful
11516  *      other values - error
11517  **/
11518 static int
11519 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
11520 {
11521         int rc, index;
11522         unsigned int cpu;
11523         struct lpfc_hba_eq_hdl *eqhdl;
11524
11525         rc = pci_alloc_irq_vectors(phba->pcidev, 1, 1,
11526                                    PCI_IRQ_MSI | PCI_IRQ_AFFINITY);
11527         if (rc > 0)
11528                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11529                                 "0487 PCI enable MSI mode success.\n");
11530         else {
11531                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11532                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
11533                 return rc ? rc : -1;
11534         }
11535
11536         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
11537                          0, LPFC_DRIVER_NAME, phba);
11538         if (rc) {
11539                 pci_free_irq_vectors(phba->pcidev);
11540                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11541                                 "0490 MSI request_irq failed (%d)\n", rc);
11542                 return rc;
11543         }
11544
11545         eqhdl = lpfc_get_eq_hdl(0);
11546         eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
11547
11548         cpu = cpumask_first(cpu_present_mask);
11549         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ, cpu);
11550
11551         for (index = 0; index < phba->cfg_irq_chann; index++) {
11552                 eqhdl = lpfc_get_eq_hdl(index);
11553                 eqhdl->idx = index;
11554         }
11555
11556         return 0;
11557 }
11558
11559 /**
11560  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
11561  * @phba: pointer to lpfc hba data structure.
11562  *
11563  * This routine is invoked to enable device interrupt and associate driver's
11564  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
11565  * interface spec. Depends on the interrupt mode configured to the driver,
11566  * the driver will try to fallback from the configured interrupt mode to an
11567  * interrupt mode which is supported by the platform, kernel, and device in
11568  * the order of:
11569  * MSI-X -> MSI -> IRQ.
11570  *
11571  * Return codes
11572  *      0 - successful
11573  *      other values - error
11574  **/
11575 static uint32_t
11576 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
11577 {
11578         uint32_t intr_mode = LPFC_INTR_ERROR;
11579         int retval, idx;
11580
11581         if (cfg_mode == 2) {
11582                 /* Preparation before conf_msi mbox cmd */
11583                 retval = 0;
11584                 if (!retval) {
11585                         /* Now, try to enable MSI-X interrupt mode */
11586                         retval = lpfc_sli4_enable_msix(phba);
11587                         if (!retval) {
11588                                 /* Indicate initialization to MSI-X mode */
11589                                 phba->intr_type = MSIX;
11590                                 intr_mode = 2;
11591                         }
11592                 }
11593         }
11594
11595         /* Fallback to MSI if MSI-X initialization failed */
11596         if (cfg_mode >= 1 && phba->intr_type == NONE) {
11597                 retval = lpfc_sli4_enable_msi(phba);
11598                 if (!retval) {
11599                         /* Indicate initialization to MSI mode */
11600                         phba->intr_type = MSI;
11601                         intr_mode = 1;
11602                 }
11603         }
11604
11605         /* Fallback to INTx if both MSI-X/MSI initalization failed */
11606         if (phba->intr_type == NONE) {
11607                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
11608                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
11609                 if (!retval) {
11610                         struct lpfc_hba_eq_hdl *eqhdl;
11611                         unsigned int cpu;
11612
11613                         /* Indicate initialization to INTx mode */
11614                         phba->intr_type = INTx;
11615                         intr_mode = 0;
11616
11617                         eqhdl = lpfc_get_eq_hdl(0);
11618                         eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
11619
11620                         cpu = cpumask_first(cpu_present_mask);
11621                         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ,
11622                                                 cpu);
11623                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11624                                 eqhdl = lpfc_get_eq_hdl(idx);
11625                                 eqhdl->idx = idx;
11626                         }
11627                 }
11628         }
11629         return intr_mode;
11630 }
11631
11632 /**
11633  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
11634  * @phba: pointer to lpfc hba data structure.
11635  *
11636  * This routine is invoked to disable device interrupt and disassociate
11637  * the driver's interrupt handler(s) from interrupt vector(s) to device
11638  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
11639  * will release the interrupt vector(s) for the message signaled interrupt.
11640  **/
11641 static void
11642 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
11643 {
11644         /* Disable the currently initialized interrupt mode */
11645         if (phba->intr_type == MSIX) {
11646                 int index;
11647                 struct lpfc_hba_eq_hdl *eqhdl;
11648
11649                 /* Free up MSI-X multi-message vectors */
11650                 for (index = 0; index < phba->cfg_irq_chann; index++) {
11651                         eqhdl = lpfc_get_eq_hdl(index);
11652                         lpfc_irq_clear_aff(eqhdl);
11653                         irq_set_affinity_hint(eqhdl->irq, NULL);
11654                         free_irq(eqhdl->irq, eqhdl);
11655                 }
11656         } else {
11657                 free_irq(phba->pcidev->irq, phba);
11658         }
11659
11660         pci_free_irq_vectors(phba->pcidev);
11661
11662         /* Reset interrupt management states */
11663         phba->intr_type = NONE;
11664         phba->sli.slistat.sli_intr = 0;
11665 }
11666
11667 /**
11668  * lpfc_unset_hba - Unset SLI3 hba device initialization
11669  * @phba: pointer to lpfc hba data structure.
11670  *
11671  * This routine is invoked to unset the HBA device initialization steps to
11672  * a device with SLI-3 interface spec.
11673  **/
11674 static void
11675 lpfc_unset_hba(struct lpfc_hba *phba)
11676 {
11677         struct lpfc_vport *vport = phba->pport;
11678         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
11679
11680         spin_lock_irq(shost->host_lock);
11681         vport->load_flag |= FC_UNLOADING;
11682         spin_unlock_irq(shost->host_lock);
11683
11684         kfree(phba->vpi_bmask);
11685         kfree(phba->vpi_ids);
11686
11687         lpfc_stop_hba_timers(phba);
11688
11689         phba->pport->work_port_events = 0;
11690
11691         lpfc_sli_hba_down(phba);
11692
11693         lpfc_sli_brdrestart(phba);
11694
11695         lpfc_sli_disable_intr(phba);
11696
11697         return;
11698 }
11699
11700 /**
11701  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
11702  * @phba: Pointer to HBA context object.
11703  *
11704  * This function is called in the SLI4 code path to wait for completion
11705  * of device's XRIs exchange busy. It will check the XRI exchange busy
11706  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
11707  * that, it will check the XRI exchange busy on outstanding FCP and ELS
11708  * I/Os every 30 seconds, log error message, and wait forever. Only when
11709  * all XRI exchange busy complete, the driver unload shall proceed with
11710  * invoking the function reset ioctl mailbox command to the CNA and the
11711  * the rest of the driver unload resource release.
11712  **/
11713 static void
11714 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
11715 {
11716         struct lpfc_sli4_hdw_queue *qp;
11717         int idx, ccnt;
11718         int wait_time = 0;
11719         int io_xri_cmpl = 1;
11720         int nvmet_xri_cmpl = 1;
11721         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11722
11723         /* Driver just aborted IOs during the hba_unset process.  Pause
11724          * here to give the HBA time to complete the IO and get entries
11725          * into the abts lists.
11726          */
11727         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
11728
11729         /* Wait for NVME pending IO to flush back to transport. */
11730         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
11731                 lpfc_nvme_wait_for_io_drain(phba);
11732
11733         ccnt = 0;
11734         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11735                 qp = &phba->sli4_hba.hdwq[idx];
11736                 io_xri_cmpl = list_empty(&qp->lpfc_abts_io_buf_list);
11737                 if (!io_xri_cmpl) /* if list is NOT empty */
11738                         ccnt++;
11739         }
11740         if (ccnt)
11741                 io_xri_cmpl = 0;
11742
11743         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11744                 nvmet_xri_cmpl =
11745                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11746         }
11747
11748         while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) {
11749                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
11750                         if (!nvmet_xri_cmpl)
11751                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11752                                                 "6424 NVMET XRI exchange busy "
11753                                                 "wait time: %d seconds.\n",
11754                                                 wait_time/1000);
11755                         if (!io_xri_cmpl)
11756                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11757                                                 "6100 IO XRI exchange busy "
11758                                                 "wait time: %d seconds.\n",
11759                                                 wait_time/1000);
11760                         if (!els_xri_cmpl)
11761                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11762                                                 "2878 ELS XRI exchange busy "
11763                                                 "wait time: %d seconds.\n",
11764                                                 wait_time/1000);
11765                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
11766                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
11767                 } else {
11768                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
11769                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
11770                 }
11771
11772                 ccnt = 0;
11773                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11774                         qp = &phba->sli4_hba.hdwq[idx];
11775                         io_xri_cmpl = list_empty(
11776                             &qp->lpfc_abts_io_buf_list);
11777                         if (!io_xri_cmpl) /* if list is NOT empty */
11778                                 ccnt++;
11779                 }
11780                 if (ccnt)
11781                         io_xri_cmpl = 0;
11782
11783                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11784                         nvmet_xri_cmpl = list_empty(
11785                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11786                 }
11787                 els_xri_cmpl =
11788                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11789
11790         }
11791 }
11792
11793 /**
11794  * lpfc_sli4_hba_unset - Unset the fcoe hba
11795  * @phba: Pointer to HBA context object.
11796  *
11797  * This function is called in the SLI4 code path to reset the HBA's FCoE
11798  * function. The caller is not required to hold any lock. This routine
11799  * issues PCI function reset mailbox command to reset the FCoE function.
11800  * At the end of the function, it calls lpfc_hba_down_post function to
11801  * free any pending commands.
11802  **/
11803 static void
11804 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
11805 {
11806         int wait_cnt = 0;
11807         LPFC_MBOXQ_t *mboxq;
11808         struct pci_dev *pdev = phba->pcidev;
11809
11810         lpfc_stop_hba_timers(phba);
11811         if (phba->pport)
11812                 phba->sli4_hba.intr_enable = 0;
11813
11814         /*
11815          * Gracefully wait out the potential current outstanding asynchronous
11816          * mailbox command.
11817          */
11818
11819         /* First, block any pending async mailbox command from posted */
11820         spin_lock_irq(&phba->hbalock);
11821         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
11822         spin_unlock_irq(&phba->hbalock);
11823         /* Now, trying to wait it out if we can */
11824         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11825                 msleep(10);
11826                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
11827                         break;
11828         }
11829         /* Forcefully release the outstanding mailbox command if timed out */
11830         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11831                 spin_lock_irq(&phba->hbalock);
11832                 mboxq = phba->sli.mbox_active;
11833                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
11834                 __lpfc_mbox_cmpl_put(phba, mboxq);
11835                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11836                 phba->sli.mbox_active = NULL;
11837                 spin_unlock_irq(&phba->hbalock);
11838         }
11839
11840         /* Abort all iocbs associated with the hba */
11841         lpfc_sli_hba_iocb_abort(phba);
11842
11843         /* Wait for completion of device XRI exchange busy */
11844         lpfc_sli4_xri_exchange_busy_wait(phba);
11845
11846         /* per-phba callback de-registration for hotplug event */
11847         lpfc_cpuhp_remove(phba);
11848
11849         /* Disable PCI subsystem interrupt */
11850         lpfc_sli4_disable_intr(phba);
11851
11852         /* Disable SR-IOV if enabled */
11853         if (phba->cfg_sriov_nr_virtfn)
11854                 pci_disable_sriov(pdev);
11855
11856         /* Stop kthread signal shall trigger work_done one more time */
11857         kthread_stop(phba->worker_thread);
11858
11859         /* Disable FW logging to host memory */
11860         lpfc_ras_stop_fwlog(phba);
11861
11862         /* Unset the queues shared with the hardware then release all
11863          * allocated resources.
11864          */
11865         lpfc_sli4_queue_unset(phba);
11866         lpfc_sli4_queue_destroy(phba);
11867
11868         /* Reset SLI4 HBA FCoE function */
11869         lpfc_pci_function_reset(phba);
11870
11871         /* Free RAS DMA memory */
11872         if (phba->ras_fwlog.ras_enabled)
11873                 lpfc_sli4_ras_dma_free(phba);
11874
11875         /* Stop the SLI4 device port */
11876         if (phba->pport)
11877                 phba->pport->work_port_events = 0;
11878 }
11879
11880  /**
11881  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
11882  * @phba: Pointer to HBA context object.
11883  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
11884  *
11885  * This function is called in the SLI4 code path to read the port's
11886  * sli4 capabilities.
11887  *
11888  * This function may be be called from any context that can block-wait
11889  * for the completion.  The expectation is that this routine is called
11890  * typically from probe_one or from the online routine.
11891  **/
11892 int
11893 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11894 {
11895         int rc;
11896         struct lpfc_mqe *mqe;
11897         struct lpfc_pc_sli4_params *sli4_params;
11898         uint32_t mbox_tmo;
11899
11900         rc = 0;
11901         mqe = &mboxq->u.mqe;
11902
11903         /* Read the port's SLI4 Parameters port capabilities */
11904         lpfc_pc_sli4_params(mboxq);
11905         if (!phba->sli4_hba.intr_enable)
11906                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11907         else {
11908                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
11909                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11910         }
11911
11912         if (unlikely(rc))
11913                 return 1;
11914
11915         sli4_params = &phba->sli4_hba.pc_sli4_params;
11916         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
11917         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
11918         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
11919         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
11920                                              &mqe->un.sli4_params);
11921         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
11922                                              &mqe->un.sli4_params);
11923         sli4_params->proto_types = mqe->un.sli4_params.word3;
11924         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
11925         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
11926         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
11927         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
11928         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
11929         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
11930         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
11931         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
11932         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
11933         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
11934         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
11935         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
11936         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
11937         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
11938         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
11939         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
11940         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
11941         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
11942         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
11943         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
11944
11945         /* Make sure that sge_supp_len can be handled by the driver */
11946         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
11947                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
11948
11949         return rc;
11950 }
11951
11952 /**
11953  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
11954  * @phba: Pointer to HBA context object.
11955  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
11956  *
11957  * This function is called in the SLI4 code path to read the port's
11958  * sli4 capabilities.
11959  *
11960  * This function may be be called from any context that can block-wait
11961  * for the completion.  The expectation is that this routine is called
11962  * typically from probe_one or from the online routine.
11963  **/
11964 int
11965 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11966 {
11967         int rc;
11968         struct lpfc_mqe *mqe = &mboxq->u.mqe;
11969         struct lpfc_pc_sli4_params *sli4_params;
11970         uint32_t mbox_tmo;
11971         int length;
11972         bool exp_wqcq_pages = true;
11973         struct lpfc_sli4_parameters *mbx_sli4_parameters;
11974
11975         /*
11976          * By default, the driver assumes the SLI4 port requires RPI
11977          * header postings.  The SLI4_PARAM response will correct this
11978          * assumption.
11979          */
11980         phba->sli4_hba.rpi_hdrs_in_use = 1;
11981
11982         /* Read the port's SLI4 Config Parameters */
11983         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
11984                   sizeof(struct lpfc_sli4_cfg_mhdr));
11985         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11986                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
11987                          length, LPFC_SLI4_MBX_EMBED);
11988         if (!phba->sli4_hba.intr_enable)
11989                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11990         else {
11991                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
11992                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11993         }
11994         if (unlikely(rc))
11995                 return rc;
11996         sli4_params = &phba->sli4_hba.pc_sli4_params;
11997         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
11998         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
11999         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
12000         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
12001         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
12002                                              mbx_sli4_parameters);
12003         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
12004                                              mbx_sli4_parameters);
12005         if (bf_get(cfg_phwq, mbx_sli4_parameters))
12006                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
12007         else
12008                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
12009         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
12010         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
12011         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
12012         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
12013         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
12014         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
12015         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
12016         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
12017         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
12018         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
12019         sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
12020         sli4_params->pls = bf_get(cfg_pvl, mbx_sli4_parameters);
12021         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
12022                                             mbx_sli4_parameters);
12023         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
12024         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
12025                                            mbx_sli4_parameters);
12026         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
12027         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
12028
12029         /* Check for Extended Pre-Registered SGL support */
12030         phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters);
12031
12032         /* Check for firmware nvme support */
12033         rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
12034                      bf_get(cfg_xib, mbx_sli4_parameters));
12035
12036         if (rc) {
12037                 /* Save this to indicate the Firmware supports NVME */
12038                 sli4_params->nvme = 1;
12039
12040                 /* Firmware NVME support, check driver FC4 NVME support */
12041                 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
12042                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
12043                                         "6133 Disabling NVME support: "
12044                                         "FC4 type not supported: x%x\n",
12045                                         phba->cfg_enable_fc4_type);
12046                         goto fcponly;
12047                 }
12048         } else {
12049                 /* No firmware NVME support, check driver FC4 NVME support */
12050                 sli4_params->nvme = 0;
12051                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12052                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
12053                                         "6101 Disabling NVME support: Not "
12054                                         "supported by firmware (%d %d) x%x\n",
12055                                         bf_get(cfg_nvme, mbx_sli4_parameters),
12056                                         bf_get(cfg_xib, mbx_sli4_parameters),
12057                                         phba->cfg_enable_fc4_type);
12058 fcponly:
12059                         phba->nvme_support = 0;
12060                         phba->nvmet_support = 0;
12061                         phba->cfg_nvmet_mrq = 0;
12062                         phba->cfg_nvme_seg_cnt = 0;
12063
12064                         /* If no FC4 type support, move to just SCSI support */
12065                         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
12066                                 return -ENODEV;
12067                         phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
12068                 }
12069         }
12070
12071         /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
12072          * accommodate 512K and 1M IOs in a single nvme buf.
12073          */
12074         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12075                 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
12076
12077         /* Only embed PBDE for if_type 6, PBDE support requires xib be set */
12078         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
12079             LPFC_SLI_INTF_IF_TYPE_6) || (!bf_get(cfg_xib, mbx_sli4_parameters)))
12080                 phba->cfg_enable_pbde = 0;
12081
12082         /*
12083          * To support Suppress Response feature we must satisfy 3 conditions.
12084          * lpfc_suppress_rsp module parameter must be set (default).
12085          * In SLI4-Parameters Descriptor:
12086          * Extended Inline Buffers (XIB) must be supported.
12087          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
12088          * (double negative).
12089          */
12090         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
12091             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
12092                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
12093         else
12094                 phba->cfg_suppress_rsp = 0;
12095
12096         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
12097                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
12098
12099         /* Make sure that sge_supp_len can be handled by the driver */
12100         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
12101                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
12102
12103         /*
12104          * Check whether the adapter supports an embedded copy of the
12105          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
12106          * to use this option, 128-byte WQEs must be used.
12107          */
12108         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
12109                 phba->fcp_embed_io = 1;
12110         else
12111                 phba->fcp_embed_io = 0;
12112
12113         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
12114                         "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
12115                         bf_get(cfg_xib, mbx_sli4_parameters),
12116                         phba->cfg_enable_pbde,
12117                         phba->fcp_embed_io, phba->nvme_support,
12118                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
12119
12120         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
12121             LPFC_SLI_INTF_IF_TYPE_2) &&
12122             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
12123                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
12124                 exp_wqcq_pages = false;
12125
12126         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
12127             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
12128             exp_wqcq_pages &&
12129             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
12130                 phba->enab_exp_wqcq_pages = 1;
12131         else
12132                 phba->enab_exp_wqcq_pages = 0;
12133         /*
12134          * Check if the SLI port supports MDS Diagnostics
12135          */
12136         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
12137                 phba->mds_diags_support = 1;
12138         else
12139                 phba->mds_diags_support = 0;
12140
12141         /*
12142          * Check if the SLI port supports NSLER
12143          */
12144         if (bf_get(cfg_nsler, mbx_sli4_parameters))
12145                 phba->nsler = 1;
12146         else
12147                 phba->nsler = 0;
12148
12149         return 0;
12150 }
12151
12152 /**
12153  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
12154  * @pdev: pointer to PCI device
12155  * @pid: pointer to PCI device identifier
12156  *
12157  * This routine is to be called to attach a device with SLI-3 interface spec
12158  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
12159  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
12160  * information of the device and driver to see if the driver state that it can
12161  * support this kind of device. If the match is successful, the driver core
12162  * invokes this routine. If this routine determines it can claim the HBA, it
12163  * does all the initialization that it needs to do to handle the HBA properly.
12164  *
12165  * Return code
12166  *      0 - driver can claim the device
12167  *      negative value - driver can not claim the device
12168  **/
12169 static int
12170 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
12171 {
12172         struct lpfc_hba   *phba;
12173         struct lpfc_vport *vport = NULL;
12174         struct Scsi_Host  *shost = NULL;
12175         int error;
12176         uint32_t cfg_mode, intr_mode;
12177
12178         /* Allocate memory for HBA structure */
12179         phba = lpfc_hba_alloc(pdev);
12180         if (!phba)
12181                 return -ENOMEM;
12182
12183         /* Perform generic PCI device enabling operation */
12184         error = lpfc_enable_pci_dev(phba);
12185         if (error)
12186                 goto out_free_phba;
12187
12188         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
12189         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
12190         if (error)
12191                 goto out_disable_pci_dev;
12192
12193         /* Set up SLI-3 specific device PCI memory space */
12194         error = lpfc_sli_pci_mem_setup(phba);
12195         if (error) {
12196                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12197                                 "1402 Failed to set up pci memory space.\n");
12198                 goto out_disable_pci_dev;
12199         }
12200
12201         /* Set up SLI-3 specific device driver resources */
12202         error = lpfc_sli_driver_resource_setup(phba);
12203         if (error) {
12204                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12205                                 "1404 Failed to set up driver resource.\n");
12206                 goto out_unset_pci_mem_s3;
12207         }
12208
12209         /* Initialize and populate the iocb list per host */
12210
12211         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
12212         if (error) {
12213                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12214                                 "1405 Failed to initialize iocb list.\n");
12215                 goto out_unset_driver_resource_s3;
12216         }
12217
12218         /* Set up common device driver resources */
12219         error = lpfc_setup_driver_resource_phase2(phba);
12220         if (error) {
12221                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12222                                 "1406 Failed to set up driver resource.\n");
12223                 goto out_free_iocb_list;
12224         }
12225
12226         /* Get the default values for Model Name and Description */
12227         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
12228
12229         /* Create SCSI host to the physical port */
12230         error = lpfc_create_shost(phba);
12231         if (error) {
12232                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12233                                 "1407 Failed to create scsi host.\n");
12234                 goto out_unset_driver_resource;
12235         }
12236
12237         /* Configure sysfs attributes */
12238         vport = phba->pport;
12239         error = lpfc_alloc_sysfs_attr(vport);
12240         if (error) {
12241                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12242                                 "1476 Failed to allocate sysfs attr\n");
12243                 goto out_destroy_shost;
12244         }
12245
12246         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
12247         /* Now, trying to enable interrupt and bring up the device */
12248         cfg_mode = phba->cfg_use_msi;
12249         while (true) {
12250                 /* Put device to a known state before enabling interrupt */
12251                 lpfc_stop_port(phba);
12252                 /* Configure and enable interrupt */
12253                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
12254                 if (intr_mode == LPFC_INTR_ERROR) {
12255                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12256                                         "0431 Failed to enable interrupt.\n");
12257                         error = -ENODEV;
12258                         goto out_free_sysfs_attr;
12259                 }
12260                 /* SLI-3 HBA setup */
12261                 if (lpfc_sli_hba_setup(phba)) {
12262                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12263                                         "1477 Failed to set up hba\n");
12264                         error = -ENODEV;
12265                         goto out_remove_device;
12266                 }
12267
12268                 /* Wait 50ms for the interrupts of previous mailbox commands */
12269                 msleep(50);
12270                 /* Check active interrupts on message signaled interrupts */
12271                 if (intr_mode == 0 ||
12272                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
12273                         /* Log the current active interrupt mode */
12274                         phba->intr_mode = intr_mode;
12275                         lpfc_log_intr_mode(phba, intr_mode);
12276                         break;
12277                 } else {
12278                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12279                                         "0447 Configure interrupt mode (%d) "
12280                                         "failed active interrupt test.\n",
12281                                         intr_mode);
12282                         /* Disable the current interrupt mode */
12283                         lpfc_sli_disable_intr(phba);
12284                         /* Try next level of interrupt mode */
12285                         cfg_mode = --intr_mode;
12286                 }
12287         }
12288
12289         /* Perform post initialization setup */
12290         lpfc_post_init_setup(phba);
12291
12292         /* Check if there are static vports to be created. */
12293         lpfc_create_static_vport(phba);
12294
12295         return 0;
12296
12297 out_remove_device:
12298         lpfc_unset_hba(phba);
12299 out_free_sysfs_attr:
12300         lpfc_free_sysfs_attr(vport);
12301 out_destroy_shost:
12302         lpfc_destroy_shost(phba);
12303 out_unset_driver_resource:
12304         lpfc_unset_driver_resource_phase2(phba);
12305 out_free_iocb_list:
12306         lpfc_free_iocb_list(phba);
12307 out_unset_driver_resource_s3:
12308         lpfc_sli_driver_resource_unset(phba);
12309 out_unset_pci_mem_s3:
12310         lpfc_sli_pci_mem_unset(phba);
12311 out_disable_pci_dev:
12312         lpfc_disable_pci_dev(phba);
12313         if (shost)
12314                 scsi_host_put(shost);
12315 out_free_phba:
12316         lpfc_hba_free(phba);
12317         return error;
12318 }
12319
12320 /**
12321  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
12322  * @pdev: pointer to PCI device
12323  *
12324  * This routine is to be called to disattach a device with SLI-3 interface
12325  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
12326  * removed from PCI bus, it performs all the necessary cleanup for the HBA
12327  * device to be removed from the PCI subsystem properly.
12328  **/
12329 static void
12330 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
12331 {
12332         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
12333         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
12334         struct lpfc_vport **vports;
12335         struct lpfc_hba   *phba = vport->phba;
12336         int i;
12337
12338         spin_lock_irq(&phba->hbalock);
12339         vport->load_flag |= FC_UNLOADING;
12340         spin_unlock_irq(&phba->hbalock);
12341
12342         lpfc_free_sysfs_attr(vport);
12343
12344         /* Release all the vports against this physical port */
12345         vports = lpfc_create_vport_work_array(phba);
12346         if (vports != NULL)
12347                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
12348                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
12349                                 continue;
12350                         fc_vport_terminate(vports[i]->fc_vport);
12351                 }
12352         lpfc_destroy_vport_work_array(phba, vports);
12353
12354         /* Remove FC host and then SCSI host with the physical port */
12355         fc_remove_host(shost);
12356         scsi_remove_host(shost);
12357
12358         lpfc_cleanup(vport);
12359
12360         /*
12361          * Bring down the SLI Layer. This step disable all interrupts,
12362          * clears the rings, discards all mailbox commands, and resets
12363          * the HBA.
12364          */
12365
12366         /* HBA interrupt will be disabled after this call */
12367         lpfc_sli_hba_down(phba);
12368         /* Stop kthread signal shall trigger work_done one more time */
12369         kthread_stop(phba->worker_thread);
12370         /* Final cleanup of txcmplq and reset the HBA */
12371         lpfc_sli_brdrestart(phba);
12372
12373         kfree(phba->vpi_bmask);
12374         kfree(phba->vpi_ids);
12375
12376         lpfc_stop_hba_timers(phba);
12377         spin_lock_irq(&phba->port_list_lock);
12378         list_del_init(&vport->listentry);
12379         spin_unlock_irq(&phba->port_list_lock);
12380
12381         lpfc_debugfs_terminate(vport);
12382
12383         /* Disable SR-IOV if enabled */
12384         if (phba->cfg_sriov_nr_virtfn)
12385                 pci_disable_sriov(pdev);
12386
12387         /* Disable interrupt */
12388         lpfc_sli_disable_intr(phba);
12389
12390         scsi_host_put(shost);
12391
12392         /*
12393          * Call scsi_free before mem_free since scsi bufs are released to their
12394          * corresponding pools here.
12395          */
12396         lpfc_scsi_free(phba);
12397         lpfc_free_iocb_list(phba);
12398
12399         lpfc_mem_free_all(phba);
12400
12401         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
12402                           phba->hbqslimp.virt, phba->hbqslimp.phys);
12403
12404         /* Free resources associated with SLI2 interface */
12405         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
12406                           phba->slim2p.virt, phba->slim2p.phys);
12407
12408         /* unmap adapter SLIM and Control Registers */
12409         iounmap(phba->ctrl_regs_memmap_p);
12410         iounmap(phba->slim_memmap_p);
12411
12412         lpfc_hba_free(phba);
12413
12414         pci_release_mem_regions(pdev);
12415         pci_disable_device(pdev);
12416 }
12417
12418 /**
12419  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
12420  * @pdev: pointer to PCI device
12421  * @msg: power management message
12422  *
12423  * This routine is to be called from the kernel's PCI subsystem to support
12424  * system Power Management (PM) to device with SLI-3 interface spec. When
12425  * PM invokes this method, it quiesces the device by stopping the driver's
12426  * worker thread for the device, turning off device's interrupt and DMA,
12427  * and bring the device offline. Note that as the driver implements the
12428  * minimum PM requirements to a power-aware driver's PM support for the
12429  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
12430  * to the suspend() method call will be treated as SUSPEND and the driver will
12431  * fully reinitialize its device during resume() method call, the driver will
12432  * set device to PCI_D3hot state in PCI config space instead of setting it
12433  * according to the @msg provided by the PM.
12434  *
12435  * Return code
12436  *      0 - driver suspended the device
12437  *      Error otherwise
12438  **/
12439 static int
12440 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
12441 {
12442         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12443         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12444
12445         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12446                         "0473 PCI device Power Management suspend.\n");
12447
12448         /* Bring down the device */
12449         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12450         lpfc_offline(phba);
12451         kthread_stop(phba->worker_thread);
12452
12453         /* Disable interrupt from device */
12454         lpfc_sli_disable_intr(phba);
12455
12456         /* Save device state to PCI config space */
12457         pci_save_state(pdev);
12458         pci_set_power_state(pdev, PCI_D3hot);
12459
12460         return 0;
12461 }
12462
12463 /**
12464  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
12465  * @pdev: pointer to PCI device
12466  *
12467  * This routine is to be called from the kernel's PCI subsystem to support
12468  * system Power Management (PM) to device with SLI-3 interface spec. When PM
12469  * invokes this method, it restores the device's PCI config space state and
12470  * fully reinitializes the device and brings it online. Note that as the
12471  * driver implements the minimum PM requirements to a power-aware driver's
12472  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
12473  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
12474  * driver will fully reinitialize its device during resume() method call,
12475  * the device will be set to PCI_D0 directly in PCI config space before
12476  * restoring the state.
12477  *
12478  * Return code
12479  *      0 - driver suspended the device
12480  *      Error otherwise
12481  **/
12482 static int
12483 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
12484 {
12485         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12486         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12487         uint32_t intr_mode;
12488         int error;
12489
12490         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12491                         "0452 PCI device Power Management resume.\n");
12492
12493         /* Restore device state from PCI config space */
12494         pci_set_power_state(pdev, PCI_D0);
12495         pci_restore_state(pdev);
12496
12497         /*
12498          * As the new kernel behavior of pci_restore_state() API call clears
12499          * device saved_state flag, need to save the restored state again.
12500          */
12501         pci_save_state(pdev);
12502
12503         if (pdev->is_busmaster)
12504                 pci_set_master(pdev);
12505
12506         /* Startup the kernel thread for this host adapter. */
12507         phba->worker_thread = kthread_run(lpfc_do_work, phba,
12508                                         "lpfc_worker_%d", phba->brd_no);
12509         if (IS_ERR(phba->worker_thread)) {
12510                 error = PTR_ERR(phba->worker_thread);
12511                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12512                                 "0434 PM resume failed to start worker "
12513                                 "thread: error=x%x.\n", error);
12514                 return error;
12515         }
12516
12517         /* Configure and enable interrupt */
12518         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
12519         if (intr_mode == LPFC_INTR_ERROR) {
12520                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12521                                 "0430 PM resume Failed to enable interrupt\n");
12522                 return -EIO;
12523         } else
12524                 phba->intr_mode = intr_mode;
12525
12526         /* Restart HBA and bring it online */
12527         lpfc_sli_brdrestart(phba);
12528         lpfc_online(phba);
12529
12530         /* Log the current active interrupt mode */
12531         lpfc_log_intr_mode(phba, phba->intr_mode);
12532
12533         return 0;
12534 }
12535
12536 /**
12537  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
12538  * @phba: pointer to lpfc hba data structure.
12539  *
12540  * This routine is called to prepare the SLI3 device for PCI slot recover. It
12541  * aborts all the outstanding SCSI I/Os to the pci device.
12542  **/
12543 static void
12544 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
12545 {
12546         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12547                         "2723 PCI channel I/O abort preparing for recovery\n");
12548
12549         /*
12550          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
12551          * and let the SCSI mid-layer to retry them to recover.
12552          */
12553         lpfc_sli_abort_fcp_rings(phba);
12554 }
12555
12556 /**
12557  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
12558  * @phba: pointer to lpfc hba data structure.
12559  *
12560  * This routine is called to prepare the SLI3 device for PCI slot reset. It
12561  * disables the device interrupt and pci device, and aborts the internal FCP
12562  * pending I/Os.
12563  **/
12564 static void
12565 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
12566 {
12567         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12568                         "2710 PCI channel disable preparing for reset\n");
12569
12570         /* Block any management I/Os to the device */
12571         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
12572
12573         /* Block all SCSI devices' I/Os on the host */
12574         lpfc_scsi_dev_block(phba);
12575
12576         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
12577         lpfc_sli_flush_io_rings(phba);
12578
12579         /* stop all timers */
12580         lpfc_stop_hba_timers(phba);
12581
12582         /* Disable interrupt and pci device */
12583         lpfc_sli_disable_intr(phba);
12584         pci_disable_device(phba->pcidev);
12585 }
12586
12587 /**
12588  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
12589  * @phba: pointer to lpfc hba data structure.
12590  *
12591  * This routine is called to prepare the SLI3 device for PCI slot permanently
12592  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
12593  * pending I/Os.
12594  **/
12595 static void
12596 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
12597 {
12598         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12599                         "2711 PCI channel permanent disable for failure\n");
12600         /* Block all SCSI devices' I/Os on the host */
12601         lpfc_scsi_dev_block(phba);
12602
12603         /* stop all timers */
12604         lpfc_stop_hba_timers(phba);
12605
12606         /* Clean up all driver's outstanding SCSI I/Os */
12607         lpfc_sli_flush_io_rings(phba);
12608 }
12609
12610 /**
12611  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
12612  * @pdev: pointer to PCI device.
12613  * @state: the current PCI connection state.
12614  *
12615  * This routine is called from the PCI subsystem for I/O error handling to
12616  * device with SLI-3 interface spec. This function is called by the PCI
12617  * subsystem after a PCI bus error affecting this device has been detected.
12618  * When this function is invoked, it will need to stop all the I/Os and
12619  * interrupt(s) to the device. Once that is done, it will return
12620  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
12621  * as desired.
12622  *
12623  * Return codes
12624  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
12625  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12626  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12627  **/
12628 static pci_ers_result_t
12629 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
12630 {
12631         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12632         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12633
12634         switch (state) {
12635         case pci_channel_io_normal:
12636                 /* Non-fatal error, prepare for recovery */
12637                 lpfc_sli_prep_dev_for_recover(phba);
12638                 return PCI_ERS_RESULT_CAN_RECOVER;
12639         case pci_channel_io_frozen:
12640                 /* Fatal error, prepare for slot reset */
12641                 lpfc_sli_prep_dev_for_reset(phba);
12642                 return PCI_ERS_RESULT_NEED_RESET;
12643         case pci_channel_io_perm_failure:
12644                 /* Permanent failure, prepare for device down */
12645                 lpfc_sli_prep_dev_for_perm_failure(phba);
12646                 return PCI_ERS_RESULT_DISCONNECT;
12647         default:
12648                 /* Unknown state, prepare and request slot reset */
12649                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12650                                 "0472 Unknown PCI error state: x%x\n", state);
12651                 lpfc_sli_prep_dev_for_reset(phba);
12652                 return PCI_ERS_RESULT_NEED_RESET;
12653         }
12654 }
12655
12656 /**
12657  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
12658  * @pdev: pointer to PCI device.
12659  *
12660  * This routine is called from the PCI subsystem for error handling to
12661  * device with SLI-3 interface spec. This is called after PCI bus has been
12662  * reset to restart the PCI card from scratch, as if from a cold-boot.
12663  * During the PCI subsystem error recovery, after driver returns
12664  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
12665  * recovery and then call this routine before calling the .resume method
12666  * to recover the device. This function will initialize the HBA device,
12667  * enable the interrupt, but it will just put the HBA to offline state
12668  * without passing any I/O traffic.
12669  *
12670  * Return codes
12671  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12672  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12673  */
12674 static pci_ers_result_t
12675 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
12676 {
12677         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12678         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12679         struct lpfc_sli *psli = &phba->sli;
12680         uint32_t intr_mode;
12681
12682         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
12683         if (pci_enable_device_mem(pdev)) {
12684                 printk(KERN_ERR "lpfc: Cannot re-enable "
12685                         "PCI device after reset.\n");
12686                 return PCI_ERS_RESULT_DISCONNECT;
12687         }
12688
12689         pci_restore_state(pdev);
12690
12691         /*
12692          * As the new kernel behavior of pci_restore_state() API call clears
12693          * device saved_state flag, need to save the restored state again.
12694          */
12695         pci_save_state(pdev);
12696
12697         if (pdev->is_busmaster)
12698                 pci_set_master(pdev);
12699
12700         spin_lock_irq(&phba->hbalock);
12701         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
12702         spin_unlock_irq(&phba->hbalock);
12703
12704         /* Configure and enable interrupt */
12705         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
12706         if (intr_mode == LPFC_INTR_ERROR) {
12707                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12708                                 "0427 Cannot re-enable interrupt after "
12709                                 "slot reset.\n");
12710                 return PCI_ERS_RESULT_DISCONNECT;
12711         } else
12712                 phba->intr_mode = intr_mode;
12713
12714         /* Take device offline, it will perform cleanup */
12715         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12716         lpfc_offline(phba);
12717         lpfc_sli_brdrestart(phba);
12718
12719         /* Log the current active interrupt mode */
12720         lpfc_log_intr_mode(phba, phba->intr_mode);
12721
12722         return PCI_ERS_RESULT_RECOVERED;
12723 }
12724
12725 /**
12726  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
12727  * @pdev: pointer to PCI device
12728  *
12729  * This routine is called from the PCI subsystem for error handling to device
12730  * with SLI-3 interface spec. It is called when kernel error recovery tells
12731  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
12732  * error recovery. After this call, traffic can start to flow from this device
12733  * again.
12734  */
12735 static void
12736 lpfc_io_resume_s3(struct pci_dev *pdev)
12737 {
12738         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12739         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12740
12741         /* Bring device online, it will be no-op for non-fatal error resume */
12742         lpfc_online(phba);
12743 }
12744
12745 /**
12746  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
12747  * @phba: pointer to lpfc hba data structure.
12748  *
12749  * returns the number of ELS/CT IOCBs to reserve
12750  **/
12751 int
12752 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
12753 {
12754         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
12755
12756         if (phba->sli_rev == LPFC_SLI_REV4) {
12757                 if (max_xri <= 100)
12758                         return 10;
12759                 else if (max_xri <= 256)
12760                         return 25;
12761                 else if (max_xri <= 512)
12762                         return 50;
12763                 else if (max_xri <= 1024)
12764                         return 100;
12765                 else if (max_xri <= 1536)
12766                         return 150;
12767                 else if (max_xri <= 2048)
12768                         return 200;
12769                 else
12770                         return 250;
12771         } else
12772                 return 0;
12773 }
12774
12775 /**
12776  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
12777  * @phba: pointer to lpfc hba data structure.
12778  *
12779  * returns the number of ELS/CT + NVMET IOCBs to reserve
12780  **/
12781 int
12782 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
12783 {
12784         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
12785
12786         if (phba->nvmet_support)
12787                 max_xri += LPFC_NVMET_BUF_POST;
12788         return max_xri;
12789 }
12790
12791
12792 static int
12793 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
12794         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
12795         const struct firmware *fw)
12796 {
12797         int rc;
12798
12799         /* Three cases:  (1) FW was not supported on the detected adapter.
12800          * (2) FW update has been locked out administratively.
12801          * (3) Some other error during FW update.
12802          * In each case, an unmaskable message is written to the console
12803          * for admin diagnosis.
12804          */
12805         if (offset == ADD_STATUS_FW_NOT_SUPPORTED ||
12806             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
12807              magic_number != MAGIC_NUMBER_G6) ||
12808             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC &&
12809              magic_number != MAGIC_NUMBER_G7)) {
12810                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12811                                 "3030 This firmware version is not supported on"
12812                                 " this HBA model. Device:%x Magic:%x Type:%x "
12813                                 "ID:%x Size %d %zd\n",
12814                                 phba->pcidev->device, magic_number, ftype, fid,
12815                                 fsize, fw->size);
12816                 rc = -EINVAL;
12817         } else if (offset == ADD_STATUS_FW_DOWNLOAD_HW_DISABLED) {
12818                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12819                                 "3021 Firmware downloads have been prohibited "
12820                                 "by a system configuration setting on "
12821                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
12822                                 "%zd\n",
12823                                 phba->pcidev->device, magic_number, ftype, fid,
12824                                 fsize, fw->size);
12825                 rc = -EACCES;
12826         } else {
12827                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12828                                 "3022 FW Download failed. Add Status x%x "
12829                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
12830                                 "%zd\n",
12831                                 offset, phba->pcidev->device, magic_number,
12832                                 ftype, fid, fsize, fw->size);
12833                 rc = -EIO;
12834         }
12835         return rc;
12836 }
12837
12838 /**
12839  * lpfc_write_firmware - attempt to write a firmware image to the port
12840  * @fw: pointer to firmware image returned from request_firmware.
12841  * @context: pointer to firmware image returned from request_firmware.
12842  * @ret: return value this routine provides to the caller.
12843  *
12844  **/
12845 static void
12846 lpfc_write_firmware(const struct firmware *fw, void *context)
12847 {
12848         struct lpfc_hba *phba = (struct lpfc_hba *)context;
12849         char fwrev[FW_REV_STR_SIZE];
12850         struct lpfc_grp_hdr *image;
12851         struct list_head dma_buffer_list;
12852         int i, rc = 0;
12853         struct lpfc_dmabuf *dmabuf, *next;
12854         uint32_t offset = 0, temp_offset = 0;
12855         uint32_t magic_number, ftype, fid, fsize;
12856
12857         /* It can be null in no-wait mode, sanity check */
12858         if (!fw) {
12859                 rc = -ENXIO;
12860                 goto out;
12861         }
12862         image = (struct lpfc_grp_hdr *)fw->data;
12863
12864         magic_number = be32_to_cpu(image->magic_number);
12865         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
12866         fid = bf_get_be32(lpfc_grp_hdr_id, image);
12867         fsize = be32_to_cpu(image->size);
12868
12869         INIT_LIST_HEAD(&dma_buffer_list);
12870         lpfc_decode_firmware_rev(phba, fwrev, 1);
12871         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
12872                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12873                                 "3023 Updating Firmware, Current Version:%s "
12874                                 "New Version:%s\n",
12875                                 fwrev, image->revision);
12876                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
12877                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
12878                                          GFP_KERNEL);
12879                         if (!dmabuf) {
12880                                 rc = -ENOMEM;
12881                                 goto release_out;
12882                         }
12883                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
12884                                                           SLI4_PAGE_SIZE,
12885                                                           &dmabuf->phys,
12886                                                           GFP_KERNEL);
12887                         if (!dmabuf->virt) {
12888                                 kfree(dmabuf);
12889                                 rc = -ENOMEM;
12890                                 goto release_out;
12891                         }
12892                         list_add_tail(&dmabuf->list, &dma_buffer_list);
12893                 }
12894                 while (offset < fw->size) {
12895                         temp_offset = offset;
12896                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
12897                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
12898                                         memcpy(dmabuf->virt,
12899                                                fw->data + temp_offset,
12900                                                fw->size - temp_offset);
12901                                         temp_offset = fw->size;
12902                                         break;
12903                                 }
12904                                 memcpy(dmabuf->virt, fw->data + temp_offset,
12905                                        SLI4_PAGE_SIZE);
12906                                 temp_offset += SLI4_PAGE_SIZE;
12907                         }
12908                         rc = lpfc_wr_object(phba, &dma_buffer_list,
12909                                     (fw->size - offset), &offset);
12910                         if (rc) {
12911                                 rc = lpfc_log_write_firmware_error(phba, offset,
12912                                                                    magic_number,
12913                                                                    ftype,
12914                                                                    fid,
12915                                                                    fsize,
12916                                                                    fw);
12917                                 goto release_out;
12918                         }
12919                 }
12920                 rc = offset;
12921         } else
12922                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12923                                 "3029 Skipped Firmware update, Current "
12924                                 "Version:%s New Version:%s\n",
12925                                 fwrev, image->revision);
12926
12927 release_out:
12928         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
12929                 list_del(&dmabuf->list);
12930                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
12931                                   dmabuf->virt, dmabuf->phys);
12932                 kfree(dmabuf);
12933         }
12934         release_firmware(fw);
12935 out:
12936         if (rc < 0)
12937                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12938                                 "3062 Firmware update error, status %d.\n", rc);
12939         else
12940                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12941                                 "3024 Firmware update success: size %d.\n", rc);
12942 }
12943
12944 /**
12945  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
12946  * @phba: pointer to lpfc hba data structure.
12947  *
12948  * This routine is called to perform Linux generic firmware upgrade on device
12949  * that supports such feature.
12950  **/
12951 int
12952 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
12953 {
12954         uint8_t file_name[ELX_MODEL_NAME_SIZE];
12955         int ret;
12956         const struct firmware *fw;
12957
12958         /* Only supported on SLI4 interface type 2 for now */
12959         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
12960             LPFC_SLI_INTF_IF_TYPE_2)
12961                 return -EPERM;
12962
12963         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
12964
12965         if (fw_upgrade == INT_FW_UPGRADE) {
12966                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
12967                                         file_name, &phba->pcidev->dev,
12968                                         GFP_KERNEL, (void *)phba,
12969                                         lpfc_write_firmware);
12970         } else if (fw_upgrade == RUN_FW_UPGRADE) {
12971                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
12972                 if (!ret)
12973                         lpfc_write_firmware(fw, (void *)phba);
12974         } else {
12975                 ret = -EINVAL;
12976         }
12977
12978         return ret;
12979 }
12980
12981 /**
12982  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
12983  * @pdev: pointer to PCI device
12984  * @pid: pointer to PCI device identifier
12985  *
12986  * This routine is called from the kernel's PCI subsystem to device with
12987  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
12988  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
12989  * information of the device and driver to see if the driver state that it
12990  * can support this kind of device. If the match is successful, the driver
12991  * core invokes this routine. If this routine determines it can claim the HBA,
12992  * it does all the initialization that it needs to do to handle the HBA
12993  * properly.
12994  *
12995  * Return code
12996  *      0 - driver can claim the device
12997  *      negative value - driver can not claim the device
12998  **/
12999 static int
13000 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
13001 {
13002         struct lpfc_hba   *phba;
13003         struct lpfc_vport *vport = NULL;
13004         struct Scsi_Host  *shost = NULL;
13005         int error;
13006         uint32_t cfg_mode, intr_mode;
13007
13008         /* Allocate memory for HBA structure */
13009         phba = lpfc_hba_alloc(pdev);
13010         if (!phba)
13011                 return -ENOMEM;
13012
13013         /* Perform generic PCI device enabling operation */
13014         error = lpfc_enable_pci_dev(phba);
13015         if (error)
13016                 goto out_free_phba;
13017
13018         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
13019         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
13020         if (error)
13021                 goto out_disable_pci_dev;
13022
13023         /* Set up SLI-4 specific device PCI memory space */
13024         error = lpfc_sli4_pci_mem_setup(phba);
13025         if (error) {
13026                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13027                                 "1410 Failed to set up pci memory space.\n");
13028                 goto out_disable_pci_dev;
13029         }
13030
13031         /* Set up SLI-4 Specific device driver resources */
13032         error = lpfc_sli4_driver_resource_setup(phba);
13033         if (error) {
13034                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13035                                 "1412 Failed to set up driver resource.\n");
13036                 goto out_unset_pci_mem_s4;
13037         }
13038
13039         INIT_LIST_HEAD(&phba->active_rrq_list);
13040         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
13041
13042         /* Set up common device driver resources */
13043         error = lpfc_setup_driver_resource_phase2(phba);
13044         if (error) {
13045                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13046                                 "1414 Failed to set up driver resource.\n");
13047                 goto out_unset_driver_resource_s4;
13048         }
13049
13050         /* Get the default values for Model Name and Description */
13051         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
13052
13053         /* Now, trying to enable interrupt and bring up the device */
13054         cfg_mode = phba->cfg_use_msi;
13055
13056         /* Put device to a known state before enabling interrupt */
13057         phba->pport = NULL;
13058         lpfc_stop_port(phba);
13059
13060         /* Init cpu_map array */
13061         lpfc_cpu_map_array_init(phba);
13062
13063         /* Init hba_eq_hdl array */
13064         lpfc_hba_eq_hdl_array_init(phba);
13065
13066         /* Configure and enable interrupt */
13067         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
13068         if (intr_mode == LPFC_INTR_ERROR) {
13069                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13070                                 "0426 Failed to enable interrupt.\n");
13071                 error = -ENODEV;
13072                 goto out_unset_driver_resource;
13073         }
13074         /* Default to single EQ for non-MSI-X */
13075         if (phba->intr_type != MSIX) {
13076                 phba->cfg_irq_chann = 1;
13077                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13078                         if (phba->nvmet_support)
13079                                 phba->cfg_nvmet_mrq = 1;
13080                 }
13081         }
13082         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
13083
13084         /* Create SCSI host to the physical port */
13085         error = lpfc_create_shost(phba);
13086         if (error) {
13087                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13088                                 "1415 Failed to create scsi host.\n");
13089                 goto out_disable_intr;
13090         }
13091         vport = phba->pport;
13092         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
13093
13094         /* Configure sysfs attributes */
13095         error = lpfc_alloc_sysfs_attr(vport);
13096         if (error) {
13097                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13098                                 "1416 Failed to allocate sysfs attr\n");
13099                 goto out_destroy_shost;
13100         }
13101
13102         /* Set up SLI-4 HBA */
13103         if (lpfc_sli4_hba_setup(phba)) {
13104                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13105                                 "1421 Failed to set up hba\n");
13106                 error = -ENODEV;
13107                 goto out_free_sysfs_attr;
13108         }
13109
13110         /* Log the current active interrupt mode */
13111         phba->intr_mode = intr_mode;
13112         lpfc_log_intr_mode(phba, intr_mode);
13113
13114         /* Perform post initialization setup */
13115         lpfc_post_init_setup(phba);
13116
13117         /* NVME support in FW earlier in the driver load corrects the
13118          * FC4 type making a check for nvme_support unnecessary.
13119          */
13120         if (phba->nvmet_support == 0) {
13121                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13122                         /* Create NVME binding with nvme_fc_transport. This
13123                          * ensures the vport is initialized.  If the localport
13124                          * create fails, it should not unload the driver to
13125                          * support field issues.
13126                          */
13127                         error = lpfc_nvme_create_localport(vport);
13128                         if (error) {
13129                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13130                                                 "6004 NVME registration "
13131                                                 "failed, error x%x\n",
13132                                                 error);
13133                         }
13134                 }
13135         }
13136
13137         /* check for firmware upgrade or downgrade */
13138         if (phba->cfg_request_firmware_upgrade)
13139                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
13140
13141         /* Check if there are static vports to be created. */
13142         lpfc_create_static_vport(phba);
13143
13144         /* Enable RAS FW log support */
13145         lpfc_sli4_ras_setup(phba);
13146
13147         INIT_LIST_HEAD(&phba->poll_list);
13148         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state, &phba->cpuhp);
13149
13150         return 0;
13151
13152 out_free_sysfs_attr:
13153         lpfc_free_sysfs_attr(vport);
13154 out_destroy_shost:
13155         lpfc_destroy_shost(phba);
13156 out_disable_intr:
13157         lpfc_sli4_disable_intr(phba);
13158 out_unset_driver_resource:
13159         lpfc_unset_driver_resource_phase2(phba);
13160 out_unset_driver_resource_s4:
13161         lpfc_sli4_driver_resource_unset(phba);
13162 out_unset_pci_mem_s4:
13163         lpfc_sli4_pci_mem_unset(phba);
13164 out_disable_pci_dev:
13165         lpfc_disable_pci_dev(phba);
13166         if (shost)
13167                 scsi_host_put(shost);
13168 out_free_phba:
13169         lpfc_hba_free(phba);
13170         return error;
13171 }
13172
13173 /**
13174  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
13175  * @pdev: pointer to PCI device
13176  *
13177  * This routine is called from the kernel's PCI subsystem to device with
13178  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
13179  * removed from PCI bus, it performs all the necessary cleanup for the HBA
13180  * device to be removed from the PCI subsystem properly.
13181  **/
13182 static void
13183 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
13184 {
13185         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13186         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
13187         struct lpfc_vport **vports;
13188         struct lpfc_hba *phba = vport->phba;
13189         int i;
13190
13191         /* Mark the device unloading flag */
13192         spin_lock_irq(&phba->hbalock);
13193         vport->load_flag |= FC_UNLOADING;
13194         spin_unlock_irq(&phba->hbalock);
13195
13196         /* Free the HBA sysfs attributes */
13197         lpfc_free_sysfs_attr(vport);
13198
13199         /* Release all the vports against this physical port */
13200         vports = lpfc_create_vport_work_array(phba);
13201         if (vports != NULL)
13202                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
13203                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
13204                                 continue;
13205                         fc_vport_terminate(vports[i]->fc_vport);
13206                 }
13207         lpfc_destroy_vport_work_array(phba, vports);
13208
13209         /* Remove FC host and then SCSI host with the physical port */
13210         fc_remove_host(shost);
13211         scsi_remove_host(shost);
13212
13213         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
13214          * localports are destroyed after to cleanup all transport memory.
13215          */
13216         lpfc_cleanup(vport);
13217         lpfc_nvmet_destroy_targetport(phba);
13218         lpfc_nvme_destroy_localport(vport);
13219
13220         /* De-allocate multi-XRI pools */
13221         if (phba->cfg_xri_rebalancing)
13222                 lpfc_destroy_multixri_pools(phba);
13223
13224         /*
13225          * Bring down the SLI Layer. This step disables all interrupts,
13226          * clears the rings, discards all mailbox commands, and resets
13227          * the HBA FCoE function.
13228          */
13229         lpfc_debugfs_terminate(vport);
13230
13231         lpfc_stop_hba_timers(phba);
13232         spin_lock_irq(&phba->port_list_lock);
13233         list_del_init(&vport->listentry);
13234         spin_unlock_irq(&phba->port_list_lock);
13235
13236         /* Perform scsi free before driver resource_unset since scsi
13237          * buffers are released to their corresponding pools here.
13238          */
13239         lpfc_io_free(phba);
13240         lpfc_free_iocb_list(phba);
13241         lpfc_sli4_hba_unset(phba);
13242
13243         lpfc_unset_driver_resource_phase2(phba);
13244         lpfc_sli4_driver_resource_unset(phba);
13245
13246         /* Unmap adapter Control and Doorbell registers */
13247         lpfc_sli4_pci_mem_unset(phba);
13248
13249         /* Release PCI resources and disable device's PCI function */
13250         scsi_host_put(shost);
13251         lpfc_disable_pci_dev(phba);
13252
13253         /* Finally, free the driver's device data structure */
13254         lpfc_hba_free(phba);
13255
13256         return;
13257 }
13258
13259 /**
13260  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
13261  * @pdev: pointer to PCI device
13262  * @msg: power management message
13263  *
13264  * This routine is called from the kernel's PCI subsystem to support system
13265  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
13266  * this method, it quiesces the device by stopping the driver's worker
13267  * thread for the device, turning off device's interrupt and DMA, and bring
13268  * the device offline. Note that as the driver implements the minimum PM
13269  * requirements to a power-aware driver's PM support for suspend/resume -- all
13270  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
13271  * method call will be treated as SUSPEND and the driver will fully
13272  * reinitialize its device during resume() method call, the driver will set
13273  * device to PCI_D3hot state in PCI config space instead of setting it
13274  * according to the @msg provided by the PM.
13275  *
13276  * Return code
13277  *      0 - driver suspended the device
13278  *      Error otherwise
13279  **/
13280 static int
13281 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
13282 {
13283         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13284         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13285
13286         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13287                         "2843 PCI device Power Management suspend.\n");
13288
13289         /* Bring down the device */
13290         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
13291         lpfc_offline(phba);
13292         kthread_stop(phba->worker_thread);
13293
13294         /* Disable interrupt from device */
13295         lpfc_sli4_disable_intr(phba);
13296         lpfc_sli4_queue_destroy(phba);
13297
13298         /* Save device state to PCI config space */
13299         pci_save_state(pdev);
13300         pci_set_power_state(pdev, PCI_D3hot);
13301
13302         return 0;
13303 }
13304
13305 /**
13306  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
13307  * @pdev: pointer to PCI device
13308  *
13309  * This routine is called from the kernel's PCI subsystem to support system
13310  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
13311  * this method, it restores the device's PCI config space state and fully
13312  * reinitializes the device and brings it online. Note that as the driver
13313  * implements the minimum PM requirements to a power-aware driver's PM for
13314  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
13315  * to the suspend() method call will be treated as SUSPEND and the driver
13316  * will fully reinitialize its device during resume() method call, the device
13317  * will be set to PCI_D0 directly in PCI config space before restoring the
13318  * state.
13319  *
13320  * Return code
13321  *      0 - driver suspended the device
13322  *      Error otherwise
13323  **/
13324 static int
13325 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
13326 {
13327         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13328         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13329         uint32_t intr_mode;
13330         int error;
13331
13332         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13333                         "0292 PCI device Power Management resume.\n");
13334
13335         /* Restore device state from PCI config space */
13336         pci_set_power_state(pdev, PCI_D0);
13337         pci_restore_state(pdev);
13338
13339         /*
13340          * As the new kernel behavior of pci_restore_state() API call clears
13341          * device saved_state flag, need to save the restored state again.
13342          */
13343         pci_save_state(pdev);
13344
13345         if (pdev->is_busmaster)
13346                 pci_set_master(pdev);
13347
13348          /* Startup the kernel thread for this host adapter. */
13349         phba->worker_thread = kthread_run(lpfc_do_work, phba,
13350                                         "lpfc_worker_%d", phba->brd_no);
13351         if (IS_ERR(phba->worker_thread)) {
13352                 error = PTR_ERR(phba->worker_thread);
13353                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13354                                 "0293 PM resume failed to start worker "
13355                                 "thread: error=x%x.\n", error);
13356                 return error;
13357         }
13358
13359         /* Configure and enable interrupt */
13360         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
13361         if (intr_mode == LPFC_INTR_ERROR) {
13362                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13363                                 "0294 PM resume Failed to enable interrupt\n");
13364                 return -EIO;
13365         } else
13366                 phba->intr_mode = intr_mode;
13367
13368         /* Restart HBA and bring it online */
13369         lpfc_sli_brdrestart(phba);
13370         lpfc_online(phba);
13371
13372         /* Log the current active interrupt mode */
13373         lpfc_log_intr_mode(phba, phba->intr_mode);
13374
13375         return 0;
13376 }
13377
13378 /**
13379  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
13380  * @phba: pointer to lpfc hba data structure.
13381  *
13382  * This routine is called to prepare the SLI4 device for PCI slot recover. It
13383  * aborts all the outstanding SCSI I/Os to the pci device.
13384  **/
13385 static void
13386 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
13387 {
13388         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13389                         "2828 PCI channel I/O abort preparing for recovery\n");
13390         /*
13391          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
13392          * and let the SCSI mid-layer to retry them to recover.
13393          */
13394         lpfc_sli_abort_fcp_rings(phba);
13395 }
13396
13397 /**
13398  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
13399  * @phba: pointer to lpfc hba data structure.
13400  *
13401  * This routine is called to prepare the SLI4 device for PCI slot reset. It
13402  * disables the device interrupt and pci device, and aborts the internal FCP
13403  * pending I/Os.
13404  **/
13405 static void
13406 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
13407 {
13408         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13409                         "2826 PCI channel disable preparing for reset\n");
13410
13411         /* Block any management I/Os to the device */
13412         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
13413
13414         /* Block all SCSI devices' I/Os on the host */
13415         lpfc_scsi_dev_block(phba);
13416
13417         /* Flush all driver's outstanding I/Os as we are to reset */
13418         lpfc_sli_flush_io_rings(phba);
13419
13420         /* stop all timers */
13421         lpfc_stop_hba_timers(phba);
13422
13423         /* Disable interrupt and pci device */
13424         lpfc_sli4_disable_intr(phba);
13425         lpfc_sli4_queue_destroy(phba);
13426         pci_disable_device(phba->pcidev);
13427 }
13428
13429 /**
13430  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
13431  * @phba: pointer to lpfc hba data structure.
13432  *
13433  * This routine is called to prepare the SLI4 device for PCI slot permanently
13434  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
13435  * pending I/Os.
13436  **/
13437 static void
13438 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
13439 {
13440         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13441                         "2827 PCI channel permanent disable for failure\n");
13442
13443         /* Block all SCSI devices' I/Os on the host */
13444         lpfc_scsi_dev_block(phba);
13445
13446         /* stop all timers */
13447         lpfc_stop_hba_timers(phba);
13448
13449         /* Clean up all driver's outstanding I/Os */
13450         lpfc_sli_flush_io_rings(phba);
13451 }
13452
13453 /**
13454  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
13455  * @pdev: pointer to PCI device.
13456  * @state: the current PCI connection state.
13457  *
13458  * This routine is called from the PCI subsystem for error handling to device
13459  * with SLI-4 interface spec. This function is called by the PCI subsystem
13460  * after a PCI bus error affecting this device has been detected. When this
13461  * function is invoked, it will need to stop all the I/Os and interrupt(s)
13462  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
13463  * for the PCI subsystem to perform proper recovery as desired.
13464  *
13465  * Return codes
13466  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
13467  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13468  **/
13469 static pci_ers_result_t
13470 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
13471 {
13472         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13473         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13474
13475         switch (state) {
13476         case pci_channel_io_normal:
13477                 /* Non-fatal error, prepare for recovery */
13478                 lpfc_sli4_prep_dev_for_recover(phba);
13479                 return PCI_ERS_RESULT_CAN_RECOVER;
13480         case pci_channel_io_frozen:
13481                 /* Fatal error, prepare for slot reset */
13482                 lpfc_sli4_prep_dev_for_reset(phba);
13483                 return PCI_ERS_RESULT_NEED_RESET;
13484         case pci_channel_io_perm_failure:
13485                 /* Permanent failure, prepare for device down */
13486                 lpfc_sli4_prep_dev_for_perm_failure(phba);
13487                 return PCI_ERS_RESULT_DISCONNECT;
13488         default:
13489                 /* Unknown state, prepare and request slot reset */
13490                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13491                                 "2825 Unknown PCI error state: x%x\n", state);
13492                 lpfc_sli4_prep_dev_for_reset(phba);
13493                 return PCI_ERS_RESULT_NEED_RESET;
13494         }
13495 }
13496
13497 /**
13498  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
13499  * @pdev: pointer to PCI device.
13500  *
13501  * This routine is called from the PCI subsystem for error handling to device
13502  * with SLI-4 interface spec. It is called after PCI bus has been reset to
13503  * restart the PCI card from scratch, as if from a cold-boot. During the
13504  * PCI subsystem error recovery, after the driver returns
13505  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
13506  * recovery and then call this routine before calling the .resume method to
13507  * recover the device. This function will initialize the HBA device, enable
13508  * the interrupt, but it will just put the HBA to offline state without
13509  * passing any I/O traffic.
13510  *
13511  * Return codes
13512  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
13513  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13514  */
13515 static pci_ers_result_t
13516 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
13517 {
13518         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13519         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13520         struct lpfc_sli *psli = &phba->sli;
13521         uint32_t intr_mode;
13522
13523         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
13524         if (pci_enable_device_mem(pdev)) {
13525                 printk(KERN_ERR "lpfc: Cannot re-enable "
13526                         "PCI device after reset.\n");
13527                 return PCI_ERS_RESULT_DISCONNECT;
13528         }
13529
13530         pci_restore_state(pdev);
13531
13532         /*
13533          * As the new kernel behavior of pci_restore_state() API call clears
13534          * device saved_state flag, need to save the restored state again.
13535          */
13536         pci_save_state(pdev);
13537
13538         if (pdev->is_busmaster)
13539                 pci_set_master(pdev);
13540
13541         spin_lock_irq(&phba->hbalock);
13542         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
13543         spin_unlock_irq(&phba->hbalock);
13544
13545         /* Configure and enable interrupt */
13546         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
13547         if (intr_mode == LPFC_INTR_ERROR) {
13548                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13549                                 "2824 Cannot re-enable interrupt after "
13550                                 "slot reset.\n");
13551                 return PCI_ERS_RESULT_DISCONNECT;
13552         } else
13553                 phba->intr_mode = intr_mode;
13554
13555         /* Log the current active interrupt mode */
13556         lpfc_log_intr_mode(phba, phba->intr_mode);
13557
13558         return PCI_ERS_RESULT_RECOVERED;
13559 }
13560
13561 /**
13562  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
13563  * @pdev: pointer to PCI device
13564  *
13565  * This routine is called from the PCI subsystem for error handling to device
13566  * with SLI-4 interface spec. It is called when kernel error recovery tells
13567  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
13568  * error recovery. After this call, traffic can start to flow from this device
13569  * again.
13570  **/
13571 static void
13572 lpfc_io_resume_s4(struct pci_dev *pdev)
13573 {
13574         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13575         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13576
13577         /*
13578          * In case of slot reset, as function reset is performed through
13579          * mailbox command which needs DMA to be enabled, this operation
13580          * has to be moved to the io resume phase. Taking device offline
13581          * will perform the necessary cleanup.
13582          */
13583         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
13584                 /* Perform device reset */
13585                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
13586                 lpfc_offline(phba);
13587                 lpfc_sli_brdrestart(phba);
13588                 /* Bring the device back online */
13589                 lpfc_online(phba);
13590         }
13591 }
13592
13593 /**
13594  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
13595  * @pdev: pointer to PCI device
13596  * @pid: pointer to PCI device identifier
13597  *
13598  * This routine is to be registered to the kernel's PCI subsystem. When an
13599  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
13600  * at PCI device-specific information of the device and driver to see if the
13601  * driver state that it can support this kind of device. If the match is
13602  * successful, the driver core invokes this routine. This routine dispatches
13603  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
13604  * do all the initialization that it needs to do to handle the HBA device
13605  * properly.
13606  *
13607  * Return code
13608  *      0 - driver can claim the device
13609  *      negative value - driver can not claim the device
13610  **/
13611 static int
13612 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
13613 {
13614         int rc;
13615         struct lpfc_sli_intf intf;
13616
13617         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
13618                 return -ENODEV;
13619
13620         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
13621             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
13622                 rc = lpfc_pci_probe_one_s4(pdev, pid);
13623         else
13624                 rc = lpfc_pci_probe_one_s3(pdev, pid);
13625
13626         return rc;
13627 }
13628
13629 /**
13630  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
13631  * @pdev: pointer to PCI device
13632  *
13633  * This routine is to be registered to the kernel's PCI subsystem. When an
13634  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
13635  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
13636  * remove routine, which will perform all the necessary cleanup for the
13637  * device to be removed from the PCI subsystem properly.
13638  **/
13639 static void
13640 lpfc_pci_remove_one(struct pci_dev *pdev)
13641 {
13642         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13643         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13644
13645         switch (phba->pci_dev_grp) {
13646         case LPFC_PCI_DEV_LP:
13647                 lpfc_pci_remove_one_s3(pdev);
13648                 break;
13649         case LPFC_PCI_DEV_OC:
13650                 lpfc_pci_remove_one_s4(pdev);
13651                 break;
13652         default:
13653                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13654                                 "1424 Invalid PCI device group: 0x%x\n",
13655                                 phba->pci_dev_grp);
13656                 break;
13657         }
13658         return;
13659 }
13660
13661 /**
13662  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
13663  * @pdev: pointer to PCI device
13664  * @msg: power management message
13665  *
13666  * This routine is to be registered to the kernel's PCI subsystem to support
13667  * system Power Management (PM). When PM invokes this method, it dispatches
13668  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
13669  * suspend the device.
13670  *
13671  * Return code
13672  *      0 - driver suspended the device
13673  *      Error otherwise
13674  **/
13675 static int
13676 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
13677 {
13678         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13679         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13680         int rc = -ENODEV;
13681
13682         switch (phba->pci_dev_grp) {
13683         case LPFC_PCI_DEV_LP:
13684                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
13685                 break;
13686         case LPFC_PCI_DEV_OC:
13687                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
13688                 break;
13689         default:
13690                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13691                                 "1425 Invalid PCI device group: 0x%x\n",
13692                                 phba->pci_dev_grp);
13693                 break;
13694         }
13695         return rc;
13696 }
13697
13698 /**
13699  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
13700  * @pdev: pointer to PCI device
13701  *
13702  * This routine is to be registered to the kernel's PCI subsystem to support
13703  * system Power Management (PM). When PM invokes this method, it dispatches
13704  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
13705  * resume the device.
13706  *
13707  * Return code
13708  *      0 - driver suspended the device
13709  *      Error otherwise
13710  **/
13711 static int
13712 lpfc_pci_resume_one(struct pci_dev *pdev)
13713 {
13714         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13715         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13716         int rc = -ENODEV;
13717
13718         switch (phba->pci_dev_grp) {
13719         case LPFC_PCI_DEV_LP:
13720                 rc = lpfc_pci_resume_one_s3(pdev);
13721                 break;
13722         case LPFC_PCI_DEV_OC:
13723                 rc = lpfc_pci_resume_one_s4(pdev);
13724                 break;
13725         default:
13726                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13727                                 "1426 Invalid PCI device group: 0x%x\n",
13728                                 phba->pci_dev_grp);
13729                 break;
13730         }
13731         return rc;
13732 }
13733
13734 /**
13735  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
13736  * @pdev: pointer to PCI device.
13737  * @state: the current PCI connection state.
13738  *
13739  * This routine is registered to the PCI subsystem for error handling. This
13740  * function is called by the PCI subsystem after a PCI bus error affecting
13741  * this device has been detected. When this routine is invoked, it dispatches
13742  * the action to the proper SLI-3 or SLI-4 device error detected handling
13743  * routine, which will perform the proper error detected operation.
13744  *
13745  * Return codes
13746  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
13747  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13748  **/
13749 static pci_ers_result_t
13750 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
13751 {
13752         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13753         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13754         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
13755
13756         switch (phba->pci_dev_grp) {
13757         case LPFC_PCI_DEV_LP:
13758                 rc = lpfc_io_error_detected_s3(pdev, state);
13759                 break;
13760         case LPFC_PCI_DEV_OC:
13761                 rc = lpfc_io_error_detected_s4(pdev, state);
13762                 break;
13763         default:
13764                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13765                                 "1427 Invalid PCI device group: 0x%x\n",
13766                                 phba->pci_dev_grp);
13767                 break;
13768         }
13769         return rc;
13770 }
13771
13772 /**
13773  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
13774  * @pdev: pointer to PCI device.
13775  *
13776  * This routine is registered to the PCI subsystem for error handling. This
13777  * function is called after PCI bus has been reset to restart the PCI card
13778  * from scratch, as if from a cold-boot. When this routine is invoked, it
13779  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
13780  * routine, which will perform the proper device reset.
13781  *
13782  * Return codes
13783  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
13784  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13785  **/
13786 static pci_ers_result_t
13787 lpfc_io_slot_reset(struct pci_dev *pdev)
13788 {
13789         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13790         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13791         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
13792
13793         switch (phba->pci_dev_grp) {
13794         case LPFC_PCI_DEV_LP:
13795                 rc = lpfc_io_slot_reset_s3(pdev);
13796                 break;
13797         case LPFC_PCI_DEV_OC:
13798                 rc = lpfc_io_slot_reset_s4(pdev);
13799                 break;
13800         default:
13801                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13802                                 "1428 Invalid PCI device group: 0x%x\n",
13803                                 phba->pci_dev_grp);
13804                 break;
13805         }
13806         return rc;
13807 }
13808
13809 /**
13810  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
13811  * @pdev: pointer to PCI device
13812  *
13813  * This routine is registered to the PCI subsystem for error handling. It
13814  * is called when kernel error recovery tells the lpfc driver that it is
13815  * OK to resume normal PCI operation after PCI bus error recovery. When
13816  * this routine is invoked, it dispatches the action to the proper SLI-3
13817  * or SLI-4 device io_resume routine, which will resume the device operation.
13818  **/
13819 static void
13820 lpfc_io_resume(struct pci_dev *pdev)
13821 {
13822         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13823         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13824
13825         switch (phba->pci_dev_grp) {
13826         case LPFC_PCI_DEV_LP:
13827                 lpfc_io_resume_s3(pdev);
13828                 break;
13829         case LPFC_PCI_DEV_OC:
13830                 lpfc_io_resume_s4(pdev);
13831                 break;
13832         default:
13833                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13834                                 "1429 Invalid PCI device group: 0x%x\n",
13835                                 phba->pci_dev_grp);
13836                 break;
13837         }
13838         return;
13839 }
13840
13841 /**
13842  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
13843  * @phba: pointer to lpfc hba data structure.
13844  *
13845  * This routine checks to see if OAS is supported for this adapter. If
13846  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
13847  * the enable oas flag is cleared and the pool created for OAS device data
13848  * is destroyed.
13849  *
13850  **/
13851 static void
13852 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
13853 {
13854
13855         if (!phba->cfg_EnableXLane)
13856                 return;
13857
13858         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
13859                 phba->cfg_fof = 1;
13860         } else {
13861                 phba->cfg_fof = 0;
13862                 mempool_destroy(phba->device_data_mem_pool);
13863                 phba->device_data_mem_pool = NULL;
13864         }
13865
13866         return;
13867 }
13868
13869 /**
13870  * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
13871  * @phba: pointer to lpfc hba data structure.
13872  *
13873  * This routine checks to see if RAS is supported by the adapter. Check the
13874  * function through which RAS support enablement is to be done.
13875  **/
13876 void
13877 lpfc_sli4_ras_init(struct lpfc_hba *phba)
13878 {
13879         switch (phba->pcidev->device) {
13880         case PCI_DEVICE_ID_LANCER_G6_FC:
13881         case PCI_DEVICE_ID_LANCER_G7_FC:
13882                 phba->ras_fwlog.ras_hwsupport = true;
13883                 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
13884                     phba->cfg_ras_fwlog_buffsize)
13885                         phba->ras_fwlog.ras_enabled = true;
13886                 else
13887                         phba->ras_fwlog.ras_enabled = false;
13888                 break;
13889         default:
13890                 phba->ras_fwlog.ras_hwsupport = false;
13891         }
13892 }
13893
13894
13895 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
13896
13897 static const struct pci_error_handlers lpfc_err_handler = {
13898         .error_detected = lpfc_io_error_detected,
13899         .slot_reset = lpfc_io_slot_reset,
13900         .resume = lpfc_io_resume,
13901 };
13902
13903 static struct pci_driver lpfc_driver = {
13904         .name           = LPFC_DRIVER_NAME,
13905         .id_table       = lpfc_id_table,
13906         .probe          = lpfc_pci_probe_one,
13907         .remove         = lpfc_pci_remove_one,
13908         .shutdown       = lpfc_pci_remove_one,
13909         .suspend        = lpfc_pci_suspend_one,
13910         .resume         = lpfc_pci_resume_one,
13911         .err_handler    = &lpfc_err_handler,
13912 };
13913
13914 static const struct file_operations lpfc_mgmt_fop = {
13915         .owner = THIS_MODULE,
13916 };
13917
13918 static struct miscdevice lpfc_mgmt_dev = {
13919         .minor = MISC_DYNAMIC_MINOR,
13920         .name = "lpfcmgmt",
13921         .fops = &lpfc_mgmt_fop,
13922 };
13923
13924 /**
13925  * lpfc_init - lpfc module initialization routine
13926  *
13927  * This routine is to be invoked when the lpfc module is loaded into the
13928  * kernel. The special kernel macro module_init() is used to indicate the
13929  * role of this routine to the kernel as lpfc module entry point.
13930  *
13931  * Return codes
13932  *   0 - successful
13933  *   -ENOMEM - FC attach transport failed
13934  *   all others - failed
13935  */
13936 static int __init
13937 lpfc_init(void)
13938 {
13939         int error = 0;
13940
13941         printk(LPFC_MODULE_DESC "\n");
13942         printk(LPFC_COPYRIGHT "\n");
13943
13944         error = misc_register(&lpfc_mgmt_dev);
13945         if (error)
13946                 printk(KERN_ERR "Could not register lpfcmgmt device, "
13947                         "misc_register returned with status %d", error);
13948
13949         lpfc_transport_functions.vport_create = lpfc_vport_create;
13950         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
13951         lpfc_transport_template =
13952                                 fc_attach_transport(&lpfc_transport_functions);
13953         if (lpfc_transport_template == NULL)
13954                 return -ENOMEM;
13955         lpfc_vport_transport_template =
13956                 fc_attach_transport(&lpfc_vport_transport_functions);
13957         if (lpfc_vport_transport_template == NULL) {
13958                 fc_release_transport(lpfc_transport_template);
13959                 return -ENOMEM;
13960         }
13961         lpfc_nvme_cmd_template();
13962         lpfc_nvmet_cmd_template();
13963
13964         /* Initialize in case vector mapping is needed */
13965         lpfc_present_cpu = num_present_cpus();
13966
13967         error = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
13968                                         "lpfc/sli4:online",
13969                                         lpfc_cpu_online, lpfc_cpu_offline);
13970         if (error < 0)
13971                 goto cpuhp_failure;
13972         lpfc_cpuhp_state = error;
13973
13974         error = pci_register_driver(&lpfc_driver);
13975         if (error)
13976                 goto unwind;
13977
13978         return error;
13979
13980 unwind:
13981         cpuhp_remove_multi_state(lpfc_cpuhp_state);
13982 cpuhp_failure:
13983         fc_release_transport(lpfc_transport_template);
13984         fc_release_transport(lpfc_vport_transport_template);
13985
13986         return error;
13987 }
13988
13989 /**
13990  * lpfc_exit - lpfc module removal routine
13991  *
13992  * This routine is invoked when the lpfc module is removed from the kernel.
13993  * The special kernel macro module_exit() is used to indicate the role of
13994  * this routine to the kernel as lpfc module exit point.
13995  */
13996 static void __exit
13997 lpfc_exit(void)
13998 {
13999         misc_deregister(&lpfc_mgmt_dev);
14000         pci_unregister_driver(&lpfc_driver);
14001         cpuhp_remove_multi_state(lpfc_cpuhp_state);
14002         fc_release_transport(lpfc_transport_template);
14003         fc_release_transport(lpfc_vport_transport_template);
14004         idr_destroy(&lpfc_hba_index);
14005 }
14006
14007 module_init(lpfc_init);
14008 module_exit(lpfc_exit);
14009 MODULE_LICENSE("GPL");
14010 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
14011 MODULE_AUTHOR("Broadcom");
14012 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);