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 Broadcom. All Rights Reserved. The term      *
   5  * “Broadcom” refers to Broadcom Limited 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
  41 #include <scsi/scsi.h>
  42 #include <scsi/scsi_device.h>
  43 #include <scsi/scsi_host.h>
  44 #include <scsi/scsi_transport_fc.h>
  45 #include <scsi/scsi_tcq.h>
  46 #include <scsi/fc/fc_fs.h>
  47
  48 #include <linux/nvme-fc-driver.h>
  49
  50 #include "lpfc_hw4.h"
  51 #include "lpfc_hw.h"
  52 #include "lpfc_sli.h"
  53 #include "lpfc_sli4.h"
  54 #include "lpfc_nl.h"
  55 #include "lpfc_disc.h"
  56 #include "lpfc.h"
  57 #include "lpfc_scsi.h"
  58 #include "lpfc_nvme.h"
  59 #include "lpfc_nvmet.h"
  60 #include "lpfc_logmsg.h"
  61 #include "lpfc_crtn.h"
  62 #include "lpfc_vport.h"
  63 #include "lpfc_version.h"
  64 #include "lpfc_ids.h"
  65
  66 char *_dump_buf_data;
  67 unsigned long _dump_buf_data_order;
  68 char *_dump_buf_dif;
  69 unsigned long _dump_buf_dif_order;
  70 spinlock_t _dump_buf_lock;
  71
  72 /* Used when mapping IRQ vectors in a driver centric manner */
  73 uint16_t *lpfc_used_cpu;
  74 uint32_t lpfc_present_cpu;
  75
  76 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  77 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  78 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  79 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  80 static int lpfc_setup_endian_order(struct lpfc_hba *);
  81 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  82 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  83 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  84 static void lpfc_init_sgl_list(struct lpfc_hba *);
  85 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  86 static void lpfc_free_active_sgl(struct lpfc_hba *);
  87 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  88 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  89 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  90 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  91 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  92 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  93 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  94 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  95
  96 static struct scsi_transport_template *lpfc_transport_template = NULL;
  97 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  98 static DEFINE_IDR(lpfc_hba_index);
  99 #define LPFC_NVMET_BUF_POST 254
 100
 101 /**
 102  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 103  * @phba: pointer to lpfc hba data structure.
 104  *
 105  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 106  * mailbox command. It retrieves the revision information from the HBA and
 107  * collects the Vital Product Data (VPD) about the HBA for preparing the
 108  * configuration of the HBA.
 109  *
 110  * Return codes:
 111  *   0 - success.
 112  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 113  *   Any other value - indicates an error.
 114  **/
 115 int
 116 lpfc_config_port_prep(struct lpfc_hba *phba)
 117 {
 118         lpfc_vpd_t *vp = &phba->vpd;
 119         int i = 0, rc;
 120         LPFC_MBOXQ_t *pmb;
 121         MAILBOX_t *mb;
 122         char *lpfc_vpd_data = NULL;
 123         uint16_t offset = 0;
 124         static char licensed[56] =
 125                     "key unlock for use with gnu public licensed code only\0";
 126         static int init_key = 1;
 127
 128         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 129         if (!pmb) {
 130                 phba->link_state = LPFC_HBA_ERROR;
 131                 return -ENOMEM;
 132         }
 133
 134         mb = &pmb->u.mb;
 135         phba->link_state = LPFC_INIT_MBX_CMDS;
 136
 137         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 138                 if (init_key) {
 139                         uint32_t *ptext = (uint32_t *) licensed;
 140
 141                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 142                                 *ptext = cpu_to_be32(*ptext);
 143                         init_key = 0;
 144                 }
 145
 146                 lpfc_read_nv(phba, pmb);
 147                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 148                         sizeof (mb->un.varRDnvp.rsvd3));
 149                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 150                          sizeof (licensed));
 151
 152                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 153
 154                 if (rc != MBX_SUCCESS) {
 155                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 156                                         "0324 Config Port initialization "
 157                                         "error, mbxCmd x%x READ_NVPARM, "
 158                                         "mbxStatus x%x\n",
 159                                         mb->mbxCommand, mb->mbxStatus);
 160                         mempool_free(pmb, phba->mbox_mem_pool);
 161                         return -ERESTART;
 162                 }
 163                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 164                        sizeof(phba->wwnn));
 165                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 166                        sizeof(phba->wwpn));
 167         }
 168
 169         phba->sli3_options = 0x0;
 170
 171         /* Setup and issue mailbox READ REV command */
 172         lpfc_read_rev(phba, pmb);
 173         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 174         if (rc != MBX_SUCCESS) {
 175                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 176                                 "0439 Adapter failed to init, mbxCmd x%x "
 177                                 "READ_REV, mbxStatus x%x\n",
 178                                 mb->mbxCommand, mb->mbxStatus);
 179                 mempool_free( pmb, phba->mbox_mem_pool);
 180                 return -ERESTART;
 181         }
 182
 183
 184         /*
 185          * The value of rr must be 1 since the driver set the cv field to 1.
 186          * This setting requires the FW to set all revision fields.
 187          */
 188         if (mb->un.varRdRev.rr == 0) {
 189                 vp->rev.rBit = 0;
 190                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 191                                 "0440 Adapter failed to init, READ_REV has "
 192                                 "missing revision information.\n");
 193                 mempool_free(pmb, phba->mbox_mem_pool);
 194                 return -ERESTART;
 195         }
 196
 197         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 198                 mempool_free(pmb, phba->mbox_mem_pool);
 199                 return -EINVAL;
 200         }
 201
 202         /* Save information as VPD data */
 203         vp->rev.rBit = 1;
 204         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 205         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 206         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 207         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 208         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 209         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 210         vp->rev.smRev = mb->un.varRdRev.smRev;
 211         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 212         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 213         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 214         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 215         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 216         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 217         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 218         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 219
 220         /* If the sli feature level is less then 9, we must
 221          * tear down all RPIs and VPIs on link down if NPIV
 222          * is enabled.
 223          */
 224         if (vp->rev.feaLevelHigh < 9)
 225                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 226
 227         if (lpfc_is_LC_HBA(phba->pcidev->device))
 228                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 229                                                 sizeof (phba->RandomData));
 230
 231         /* Get adapter VPD information */
 232         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 233         if (!lpfc_vpd_data)
 234                 goto out_free_mbox;
 235         do {
 236                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 237                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 238
 239                 if (rc != MBX_SUCCESS) {
 240                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 241                                         "0441 VPD not present on adapter, "
 242                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 243                                         mb->mbxCommand, mb->mbxStatus);
 244                         mb->un.varDmp.word_cnt = 0;
 245                 }
 246                 /* dump mem may return a zero when finished or we got a
 247                  * mailbox error, either way we are done.
 248                  */
 249                 if (mb->un.varDmp.word_cnt == 0)
 250                         break;
 251                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 252                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 253                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 254                                       lpfc_vpd_data + offset,
 255                                       mb->un.varDmp.word_cnt);
 256                 offset += mb->un.varDmp.word_cnt;
 257         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 258         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 259
 260         kfree(lpfc_vpd_data);
 261 out_free_mbox:
 262         mempool_free(pmb, phba->mbox_mem_pool);
 263         return 0;
 264 }
 265
 266 /**
 267  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 268  * @phba: pointer to lpfc hba data structure.
 269  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 270  *
 271  * This is the completion handler for driver's configuring asynchronous event
 272  * mailbox command to the device. If the mailbox command returns successfully,
 273  * it will set internal async event support flag to 1; otherwise, it will
 274  * set internal async event support flag to 0.
 275  **/
 276 static void
 277 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 278 {
 279         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 280                 phba->temp_sensor_support = 1;
 281         else
 282                 phba->temp_sensor_support = 0;
 283         mempool_free(pmboxq, phba->mbox_mem_pool);
 284         return;
 285 }
 286
 287 /**
 288  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 289  * @phba: pointer to lpfc hba data structure.
 290  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 291  *
 292  * This is the completion handler for dump mailbox command for getting
 293  * wake up parameters. When this command complete, the response contain
 294  * Option rom version of the HBA. This function translate the version number
 295  * into a human readable string and store it in OptionROMVersion.
 296  **/
 297 static void
 298 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 299 {
 300         struct prog_id *prg;
 301         uint32_t prog_id_word;
 302         char dist = ' ';
 303         /* character array used for decoding dist type. */
 304         char dist_char[] = "nabx";
 305
 306         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 307                 mempool_free(pmboxq, phba->mbox_mem_pool);
 308                 return;
 309         }
 310
 311         prg = (struct prog_id *) &prog_id_word;
 312
 313         /* word 7 contain option rom version */
 314         prog_id_word = pmboxq->u.mb.un.varWords[7];
 315
 316         /* Decode the Option rom version word to a readable string */
 317         if (prg->dist < 4)
 318                 dist = dist_char[prg->dist];
 319
 320         if ((prg->dist == 3) && (prg->num == 0))
 321                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 322                         prg->ver, prg->rev, prg->lev);
 323         else
 324                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 325                         prg->ver, prg->rev, prg->lev,
 326                         dist, prg->num);
 327         mempool_free(pmboxq, phba->mbox_mem_pool);
 328         return;
 329 }
 330
 331 /**
 332  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 333  *      cfg_soft_wwnn, cfg_soft_wwpn
 334  * @vport: pointer to lpfc vport data structure.
 335  *
 336  *
 337  * Return codes
 338  *   None.
 339  **/
 340 void
 341 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 342 {
 343         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 344         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 345
 346         /* If the soft name exists then update it using the service params */
 347         if (vport->phba->cfg_soft_wwnn)
 348                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 349                            vport->fc_sparam.nodeName.u.wwn);
 350         if (vport->phba->cfg_soft_wwpn)
 351                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 352                            vport->fc_sparam.portName.u.wwn);
 353
 354         /*
 355          * If the name is empty or there exists a soft name
 356          * then copy the service params name, otherwise use the fc name
 357          */
 358         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 359                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 360                         sizeof(struct lpfc_name));
 361         else
 362                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 363                         sizeof(struct lpfc_name));
 364
 365         /*
 366          * If the port name has changed, then set the Param changes flag
 367          * to unreg the login
 368          */
 369         if (vport->fc_portname.u.wwn[0] != 0 &&
 370                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 371                         sizeof(struct lpfc_name)))
 372                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 373
 374         if (vport->fc_portname.u.wwn[0] == 0 ||
 375             vport->phba->cfg_soft_wwpn ||
 376             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 377             vport->vport_flag & FAWWPN_SET) {
 378                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 379                         sizeof(struct lpfc_name));
 380                 vport->vport_flag &= ~FAWWPN_SET;
 381                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 382                         vport->vport_flag |= FAWWPN_SET;
 383         }
 384         else
 385                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 386                         sizeof(struct lpfc_name));
 387 }
 388
 389 /**
 390  * lpfc_config_port_post - Perform lpfc initialization after config port
 391  * @phba: pointer to lpfc hba data structure.
 392  *
 393  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 394  * command call. It performs all internal resource and state setups on the
 395  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 396  * ELS ring timers, etc.
 397  *
 398  * Return codes
 399  *   0 - success.
 400  *   Any other value - error.
 401  **/
 402 int
 403 lpfc_config_port_post(struct lpfc_hba *phba)
 404 {
 405         struct lpfc_vport *vport = phba->pport;
 406         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 407         LPFC_MBOXQ_t *pmb;
 408         MAILBOX_t *mb;
 409         struct lpfc_dmabuf *mp;
 410         struct lpfc_sli *psli = &phba->sli;
 411         uint32_t status, timeout;
 412         int i, j;
 413         int rc;
 414
 415         spin_lock_irq(&phba->hbalock);
 416         /*
 417          * If the Config port completed correctly the HBA is not
 418          * over heated any more.
 419          */
 420         if (phba->over_temp_state == HBA_OVER_TEMP)
 421                 phba->over_temp_state = HBA_NORMAL_TEMP;
 422         spin_unlock_irq(&phba->hbalock);
 423
 424         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 425         if (!pmb) {
 426                 phba->link_state = LPFC_HBA_ERROR;
 427                 return -ENOMEM;
 428         }
 429         mb = &pmb->u.mb;
 430
 431         /* Get login parameters for NID.  */
 432         rc = lpfc_read_sparam(phba, pmb, 0);
 433         if (rc) {
 434                 mempool_free(pmb, phba->mbox_mem_pool);
 435                 return -ENOMEM;
 436         }
 437
 438         pmb->vport = vport;
 439         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 440                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 441                                 "0448 Adapter failed init, mbxCmd x%x "
 442                                 "READ_SPARM mbxStatus x%x\n",
 443                                 mb->mbxCommand, mb->mbxStatus);
 444                 phba->link_state = LPFC_HBA_ERROR;
 445                 mp = (struct lpfc_dmabuf *) pmb->context1;
 446                 mempool_free(pmb, phba->mbox_mem_pool);
 447                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 448                 kfree(mp);
 449                 return -EIO;
 450         }
 451
 452         mp = (struct lpfc_dmabuf *) pmb->context1;
 453
 454         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 455         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 456         kfree(mp);
 457         pmb->context1 = NULL;
 458         lpfc_update_vport_wwn(vport);
 459
 460         /* Update the fc_host data structures with new wwn. */
 461         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 462         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 463         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 464
 465         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 466         /* This should be consolidated into parse_vpd ? - mr */
 467         if (phba->SerialNumber[0] == 0) {
 468                 uint8_t *outptr;
 469
 470                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 471                 for (i = 0; i < 12; i++) {
 472                         status = *outptr++;
 473                         j = ((status & 0xf0) >> 4);
 474                         if (j <= 9)
 475                                 phba->SerialNumber[i] =
 476                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 477                         else
 478                                 phba->SerialNumber[i] =
 479                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 480                         i++;
 481                         j = (status & 0xf);
 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                 }
 489         }
 490
 491         lpfc_read_config(phba, pmb);
 492         pmb->vport = vport;
 493         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 494                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 495                                 "0453 Adapter failed to init, mbxCmd x%x "
 496                                 "READ_CONFIG, mbxStatus x%x\n",
 497                                 mb->mbxCommand, mb->mbxStatus);
 498                 phba->link_state = LPFC_HBA_ERROR;
 499                 mempool_free( pmb, phba->mbox_mem_pool);
 500                 return -EIO;
 501         }
 502
 503         /* Check if the port is disabled */
 504         lpfc_sli_read_link_ste(phba);
 505
 506         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 507         i = (mb->un.varRdConfig.max_xri + 1);
 508         if (phba->cfg_hba_queue_depth > i) {
 509                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 510                                 "3359 HBA queue depth changed from %d to %d\n",
 511                                 phba->cfg_hba_queue_depth, i);
 512                 phba->cfg_hba_queue_depth = i;
 513         }
 514
 515         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 516         i = (mb->un.varRdConfig.max_xri >> 3);
 517         if (phba->pport->cfg_lun_queue_depth > i) {
 518                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 519                                 "3360 LUN queue depth changed from %d to %d\n",
 520                                 phba->pport->cfg_lun_queue_depth, i);
 521                 phba->pport->cfg_lun_queue_depth = i;
 522         }
 523
 524         phba->lmt = mb->un.varRdConfig.lmt;
 525
 526         /* Get the default values for Model Name and Description */
 527         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 528
 529         phba->link_state = LPFC_LINK_DOWN;
 530
 531         /* Only process IOCBs on ELS ring till hba_state is READY */
 532         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 533                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 534         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 535                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 536
 537         /* Post receive buffers for desired rings */
 538         if (phba->sli_rev != 3)
 539                 lpfc_post_rcv_buf(phba);
 540
 541         /*
 542          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 543          */
 544         if (phba->intr_type == MSIX) {
 545                 rc = lpfc_config_msi(phba, pmb);
 546                 if (rc) {
 547                         mempool_free(pmb, phba->mbox_mem_pool);
 548                         return -EIO;
 549                 }
 550                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 551                 if (rc != MBX_SUCCESS) {
 552                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 553                                         "0352 Config MSI mailbox command "
 554                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 555                                         pmb->u.mb.mbxCommand,
 556                                         pmb->u.mb.mbxStatus);
 557                         mempool_free(pmb, phba->mbox_mem_pool);
 558                         return -EIO;
 559                 }
 560         }
 561
 562         spin_lock_irq(&phba->hbalock);
 563         /* Initialize ERATT handling flag */
 564         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 565
 566         /* Enable appropriate host interrupts */
 567         if (lpfc_readl(phba->HCregaddr, &status)) {
 568                 spin_unlock_irq(&phba->hbalock);
 569                 return -EIO;
 570         }
 571         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 572         if (psli->num_rings > 0)
 573                 status |= HC_R0INT_ENA;
 574         if (psli->num_rings > 1)
 575                 status |= HC_R1INT_ENA;
 576         if (psli->num_rings > 2)
 577                 status |= HC_R2INT_ENA;
 578         if (psli->num_rings > 3)
 579                 status |= HC_R3INT_ENA;
 580
 581         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 582             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 583                 status &= ~(HC_R0INT_ENA);
 584
 585         writel(status, phba->HCregaddr);
 586         readl(phba->HCregaddr); /* flush */
 587         spin_unlock_irq(&phba->hbalock);
 588
 589         /* Set up ring-0 (ELS) timer */
 590         timeout = phba->fc_ratov * 2;
 591         mod_timer(&vport->els_tmofunc,
 592                   jiffies + msecs_to_jiffies(1000 * timeout));
 593         /* Set up heart beat (HB) timer */
 594         mod_timer(&phba->hb_tmofunc,
 595                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 596         phba->hb_outstanding = 0;
 597         phba->last_completion_time = jiffies;
 598         /* Set up error attention (ERATT) polling timer */
 599         mod_timer(&phba->eratt_poll,
 600                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 601
 602         if (phba->hba_flag & LINK_DISABLED) {
 603                 lpfc_printf_log(phba,
 604                         KERN_ERR, LOG_INIT,
 605                         "2598 Adapter Link is disabled.\n");
 606                 lpfc_down_link(phba, pmb);
 607                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 608                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 609                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 610                         lpfc_printf_log(phba,
 611                         KERN_ERR, LOG_INIT,
 612                         "2599 Adapter failed to issue DOWN_LINK"
 613                         " mbox command rc 0x%x\n", rc);
 614
 615                         mempool_free(pmb, phba->mbox_mem_pool);
 616                         return -EIO;
 617                 }
 618         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 619                 mempool_free(pmb, phba->mbox_mem_pool);
 620                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 621                 if (rc)
 622                         return rc;
 623         }
 624         /* MBOX buffer will be freed in mbox compl */
 625         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 626         if (!pmb) {
 627                 phba->link_state = LPFC_HBA_ERROR;
 628                 return -ENOMEM;
 629         }
 630
 631         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 632         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 633         pmb->vport = phba->pport;
 634         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 635
 636         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 637                 lpfc_printf_log(phba,
 638                                 KERN_ERR,
 639                                 LOG_INIT,
 640                                 "0456 Adapter failed to issue "
 641                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 642                                 rc);
 643                 mempool_free(pmb, phba->mbox_mem_pool);
 644         }
 645
 646         /* Get Option rom version */
 647         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 648         if (!pmb) {
 649                 phba->link_state = LPFC_HBA_ERROR;
 650                 return -ENOMEM;
 651         }
 652
 653         lpfc_dump_wakeup_param(phba, pmb);
 654         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 655         pmb->vport = phba->pport;
 656         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 657
 658         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 659                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 660                                 "to get Option ROM version status x%x\n", rc);
 661                 mempool_free(pmb, phba->mbox_mem_pool);
 662         }
 663
 664         return 0;
 665 }
 666
 667 /**
 668  * lpfc_hba_init_link - Initialize the FC link
 669  * @phba: pointer to lpfc hba data structure.
 670  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 671  *
 672  * This routine will issue the INIT_LINK mailbox command call.
 673  * It is available to other drivers through the lpfc_hba data
 674  * structure for use as a delayed link up mechanism with the
 675  * module parameter lpfc_suppress_link_up.
 676  *
 677  * Return code
 678  *              0 - success
 679  *              Any other value - error
 680  **/
 681 static int
 682 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 683 {
 684         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 685 }
 686
 687 /**
 688  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 689  * @phba: pointer to lpfc hba data structure.
 690  * @fc_topology: desired fc topology.
 691  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 692  *
 693  * This routine will issue the INIT_LINK mailbox command call.
 694  * It is available to other drivers through the lpfc_hba data
 695  * structure for use as a delayed link up mechanism with the
 696  * module parameter lpfc_suppress_link_up.
 697  *
 698  * Return code
 699  *              0 - success
 700  *              Any other value - error
 701  **/
 702 int
 703 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 704                                uint32_t flag)
 705 {
 706         struct lpfc_vport *vport = phba->pport;
 707         LPFC_MBOXQ_t *pmb;
 708         MAILBOX_t *mb;
 709         int rc;
 710
 711         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 712         if (!pmb) {
 713                 phba->link_state = LPFC_HBA_ERROR;
 714                 return -ENOMEM;
 715         }
 716         mb = &pmb->u.mb;
 717         pmb->vport = vport;
 718
 719         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 720             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 721              !(phba->lmt & LMT_1Gb)) ||
 722             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 723              !(phba->lmt & LMT_2Gb)) ||
 724             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 725              !(phba->lmt & LMT_4Gb)) ||
 726             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 727              !(phba->lmt & LMT_8Gb)) ||
 728             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 729              !(phba->lmt & LMT_10Gb)) ||
 730             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 731              !(phba->lmt & LMT_16Gb)) ||
 732             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 733              !(phba->lmt & LMT_32Gb))) {
 734                 /* Reset link speed to auto */
 735                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 736                         "1302 Invalid speed for this board:%d "
 737                         "Reset link speed to auto.\n",
 738                         phba->cfg_link_speed);
 739                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 740         }
 741         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 742         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 743         if (phba->sli_rev < LPFC_SLI_REV4)
 744                 lpfc_set_loopback_flag(phba);
 745         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 746         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 747                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 748                         "0498 Adapter failed to init, mbxCmd x%x "
 749                         "INIT_LINK, mbxStatus x%x\n",
 750                         mb->mbxCommand, mb->mbxStatus);
 751                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 752                         /* Clear all interrupt enable conditions */
 753                         writel(0, phba->HCregaddr);
 754                         readl(phba->HCregaddr); /* flush */
 755                         /* Clear all pending interrupts */
 756                         writel(0xffffffff, phba->HAregaddr);
 757                         readl(phba->HAregaddr); /* flush */
 758                 }
 759                 phba->link_state = LPFC_HBA_ERROR;
 760                 if (rc != MBX_BUSY || flag == MBX_POLL)
 761                         mempool_free(pmb, phba->mbox_mem_pool);
 762                 return -EIO;
 763         }
 764         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 765         if (flag == MBX_POLL)
 766                 mempool_free(pmb, phba->mbox_mem_pool);
 767
 768         return 0;
 769 }
 770
 771 /**
 772  * lpfc_hba_down_link - this routine downs the FC link
 773  * @phba: pointer to lpfc hba data structure.
 774  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 775  *
 776  * This routine will issue the DOWN_LINK mailbox command call.
 777  * It is available to other drivers through the lpfc_hba data
 778  * structure for use to stop the link.
 779  *
 780  * Return code
 781  *              0 - success
 782  *              Any other value - error
 783  **/
 784 static int
 785 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 786 {
 787         LPFC_MBOXQ_t *pmb;
 788         int rc;
 789
 790         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 791         if (!pmb) {
 792                 phba->link_state = LPFC_HBA_ERROR;
 793                 return -ENOMEM;
 794         }
 795
 796         lpfc_printf_log(phba,
 797                 KERN_ERR, LOG_INIT,
 798                 "0491 Adapter Link is disabled.\n");
 799         lpfc_down_link(phba, pmb);
 800         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 801         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 802         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 803                 lpfc_printf_log(phba,
 804                 KERN_ERR, LOG_INIT,
 805                 "2522 Adapter failed to issue DOWN_LINK"
 806                 " mbox command rc 0x%x\n", rc);
 807
 808                 mempool_free(pmb, phba->mbox_mem_pool);
 809                 return -EIO;
 810         }
 811         if (flag == MBX_POLL)
 812                 mempool_free(pmb, phba->mbox_mem_pool);
 813
 814         return 0;
 815 }
 816
 817 /**
 818  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 819  * @phba: pointer to lpfc HBA data structure.
 820  *
 821  * This routine will do LPFC uninitialization before the HBA is reset when
 822  * bringing down the SLI Layer.
 823  *
 824  * Return codes
 825  *   0 - success.
 826  *   Any other value - error.
 827  **/
 828 int
 829 lpfc_hba_down_prep(struct lpfc_hba *phba)
 830 {
 831         struct lpfc_vport **vports;
 832         int i;
 833
 834         if (phba->sli_rev <= LPFC_SLI_REV3) {
 835                 /* Disable interrupts */
 836                 writel(0, phba->HCregaddr);
 837                 readl(phba->HCregaddr); /* flush */
 838         }
 839
 840         if (phba->pport->load_flag & FC_UNLOADING)
 841                 lpfc_cleanup_discovery_resources(phba->pport);
 842         else {
 843                 vports = lpfc_create_vport_work_array(phba);
 844                 if (vports != NULL)
 845                         for (i = 0; i <= phba->max_vports &&
 846                                 vports[i] != NULL; i++)
 847                                 lpfc_cleanup_discovery_resources(vports[i]);
 848                 lpfc_destroy_vport_work_array(phba, vports);
 849         }
 850         return 0;
 851 }
 852
 853 /**
 854  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 855  * rspiocb which got deferred
 856  *
 857  * @phba: pointer to lpfc HBA data structure.
 858  *
 859  * This routine will cleanup completed slow path events after HBA is reset
 860  * when bringing down the SLI Layer.
 861  *
 862  *
 863  * Return codes
 864  *   void.
 865  **/
 866 static void
 867 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 868 {
 869         struct lpfc_iocbq *rspiocbq;
 870         struct hbq_dmabuf *dmabuf;
 871         struct lpfc_cq_event *cq_event;
 872
 873         spin_lock_irq(&phba->hbalock);
 874         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 875         spin_unlock_irq(&phba->hbalock);
 876
 877         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 878                 /* Get the response iocb from the head of work queue */
 879                 spin_lock_irq(&phba->hbalock);
 880                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 881                                  cq_event, struct lpfc_cq_event, list);
 882                 spin_unlock_irq(&phba->hbalock);
 883
 884                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 885                 case CQE_CODE_COMPL_WQE:
 886                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 887                                                  cq_event);
 888                         lpfc_sli_release_iocbq(phba, rspiocbq);
 889                         break;
 890                 case CQE_CODE_RECEIVE:
 891                 case CQE_CODE_RECEIVE_V1:
 892                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 893                                               cq_event);
 894                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 895                 }
 896         }
 897 }
 898
 899 /**
 900  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 901  * @phba: pointer to lpfc HBA data structure.
 902  *
 903  * This routine will cleanup posted ELS buffers after the HBA is reset
 904  * when bringing down the SLI Layer.
 905  *
 906  *
 907  * Return codes
 908  *   void.
 909  **/
 910 static void
 911 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 912 {
 913         struct lpfc_sli *psli = &phba->sli;
 914         struct lpfc_sli_ring *pring;
 915         struct lpfc_dmabuf *mp, *next_mp;
 916         LIST_HEAD(buflist);
 917         int count;
 918
 919         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 920                 lpfc_sli_hbqbuf_free_all(phba);
 921         else {
 922                 /* Cleanup preposted buffers on the ELS ring */
 923                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 924                 spin_lock_irq(&phba->hbalock);
 925                 list_splice_init(&pring->postbufq, &buflist);
 926                 spin_unlock_irq(&phba->hbalock);
 927
 928                 count = 0;
 929                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 930                         list_del(&mp->list);
 931                         count++;
 932                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 933                         kfree(mp);
 934                 }
 935
 936                 spin_lock_irq(&phba->hbalock);
 937                 pring->postbufq_cnt -= count;
 938                 spin_unlock_irq(&phba->hbalock);
 939         }
 940 }
 941
 942 /**
 943  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 944  * @phba: pointer to lpfc HBA data structure.
 945  *
 946  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 947  * down the SLI Layer.
 948  *
 949  * Return codes
 950  *   void
 951  **/
 952 static void
 953 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 954 {
 955         struct lpfc_sli *psli = &phba->sli;
 956         struct lpfc_queue *qp = NULL;
 957         struct lpfc_sli_ring *pring;
 958         LIST_HEAD(completions);
 959         int i;
 960
 961         if (phba->sli_rev != LPFC_SLI_REV4) {
 962                 for (i = 0; i < psli->num_rings; i++) {
 963                         pring = &psli->sli3_ring[i];
 964                         spin_lock_irq(&phba->hbalock);
 965                         /* At this point in time the HBA is either reset or DOA
 966                          * Nothing should be on txcmplq as it will
 967                          * NEVER complete.
 968                          */
 969                         list_splice_init(&pring->txcmplq, &completions);
 970                         pring->txcmplq_cnt = 0;
 971                         spin_unlock_irq(&phba->hbalock);
 972
 973                         lpfc_sli_abort_iocb_ring(phba, pring);
 974                 }
 975                 /* Cancel all the IOCBs from the completions list */
 976                 lpfc_sli_cancel_iocbs(phba, &completions,
 977                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 978                 return;
 979         }
 980         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 981                 pring = qp->pring;
 982                 if (!pring)
 983                         continue;
 984                 spin_lock_irq(&pring->ring_lock);
 985                 list_splice_init(&pring->txcmplq, &completions);
 986                 pring->txcmplq_cnt = 0;
 987                 spin_unlock_irq(&pring->ring_lock);
 988                 lpfc_sli_abort_iocb_ring(phba, pring);
 989         }
 990         /* Cancel all the IOCBs from the completions list */
 991         lpfc_sli_cancel_iocbs(phba, &completions,
 992                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 993 }
 994
 995 /**
 996  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 997         int i;
 998  * @phba: pointer to lpfc HBA data structure.
 999  *
1000  * This routine will do uninitialization after the HBA is reset when bring
1001  * down the SLI Layer.
1002  *
1003  * Return codes
1004  *   0 - success.
1005  *   Any other value - error.
1006  **/
1007 static int
1008 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1009 {
1010         lpfc_hba_free_post_buf(phba);
1011         lpfc_hba_clean_txcmplq(phba);
1012         return 0;
1013 }
1014
1015 /**
1016  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1017  * @phba: pointer to lpfc HBA data structure.
1018  *
1019  * This routine will do uninitialization after the HBA is reset when bring
1020  * down the SLI Layer.
1021  *
1022  * Return codes
1023  *   0 - success.
1024  *   Any other value - error.
1025  **/
1026 static int
1027 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1028 {
1029         struct lpfc_scsi_buf *psb, *psb_next;
1030         struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next;
1031         LIST_HEAD(aborts);
1032         LIST_HEAD(nvme_aborts);
1033         LIST_HEAD(nvmet_aborts);
1034         unsigned long iflag = 0;
1035         struct lpfc_sglq *sglq_entry = NULL;
1036
1037
1038         lpfc_sli_hbqbuf_free_all(phba);
1039         lpfc_hba_clean_txcmplq(phba);
1040
1041         /* At this point in time the HBA is either reset or DOA. Either
1042          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1043          * on the lpfc_els_sgl_list so that it can either be freed if the
1044          * driver is unloading or reposted if the driver is restarting
1045          * the port.
1046          */
1047         spin_lock_irq(&phba->hbalock);  /* required for lpfc_els_sgl_list and */
1048                                         /* scsl_buf_list */
1049         /* sgl_list_lock required because worker thread uses this
1050          * list.
1051          */
1052         spin_lock(&phba->sli4_hba.sgl_list_lock);
1053         list_for_each_entry(sglq_entry,
1054                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1055                 sglq_entry->state = SGL_FREED;
1056
1057         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1058                         &phba->sli4_hba.lpfc_els_sgl_list);
1059
1060
1061         spin_unlock(&phba->sli4_hba.sgl_list_lock);
1062         /* abts_scsi_buf_list_lock required because worker thread uses this
1063          * list.
1064          */
1065         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
1066                 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1067                 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1068                                  &aborts);
1069                 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1070         }
1071
1072         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1073                 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1074                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvme_buf_list,
1075                                  &nvme_aborts);
1076                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1077                                  &nvmet_aborts);
1078                 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1079         }
1080
1081         spin_unlock_irq(&phba->hbalock);
1082
1083         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1084                 psb->pCmd = NULL;
1085                 psb->status = IOSTAT_SUCCESS;
1086         }
1087         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1088         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1089         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1090
1091         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1092                 list_for_each_entry_safe(psb, psb_next, &nvme_aborts, list) {
1093                         psb->pCmd = NULL;
1094                         psb->status = IOSTAT_SUCCESS;
1095                 }
1096                 spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag);
1097                 list_splice(&nvme_aborts, &phba->lpfc_nvme_buf_list_put);
1098                 spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag);
1099
1100                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1101                         ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP);
1102                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1103                 }
1104         }
1105
1106         lpfc_sli4_free_sp_events(phba);
1107         return 0;
1108 }
1109
1110 /**
1111  * lpfc_hba_down_post - Wrapper func for hba down post routine
1112  * @phba: pointer to lpfc HBA data structure.
1113  *
1114  * This routine wraps the actual SLI3 or SLI4 routine for performing
1115  * uninitialization after the HBA is reset when bring down the SLI Layer.
1116  *
1117  * Return codes
1118  *   0 - success.
1119  *   Any other value - error.
1120  **/
1121 int
1122 lpfc_hba_down_post(struct lpfc_hba *phba)
1123 {
1124         return (*phba->lpfc_hba_down_post)(phba);
1125 }
1126
1127 /**
1128  * lpfc_hb_timeout - The HBA-timer timeout handler
1129  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1130  *
1131  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1132  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1133  * work-port-events bitmap and the worker thread is notified. This timeout
1134  * event will be used by the worker thread to invoke the actual timeout
1135  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1136  * be performed in the timeout handler and the HBA timeout event bit shall
1137  * be cleared by the worker thread after it has taken the event bitmap out.
1138  **/
1139 static void
1140 lpfc_hb_timeout(unsigned long ptr)
1141 {
1142         struct lpfc_hba *phba;
1143         uint32_t tmo_posted;
1144         unsigned long iflag;
1145
1146         phba = (struct lpfc_hba *)ptr;
1147
1148         /* Check for heart beat timeout conditions */
1149         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1150         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1151         if (!tmo_posted)
1152                 phba->pport->work_port_events |= WORKER_HB_TMO;
1153         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1154
1155         /* Tell the worker thread there is work to do */
1156         if (!tmo_posted)
1157                 lpfc_worker_wake_up(phba);
1158         return;
1159 }
1160
1161 /**
1162  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1163  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1164  *
1165  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1166  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1167  * work-port-events bitmap and the worker thread is notified. This timeout
1168  * event will be used by the worker thread to invoke the actual timeout
1169  * handler routine, lpfc_rrq_handler. Any periodical operations will
1170  * be performed in the timeout handler and the RRQ timeout event bit shall
1171  * be cleared by the worker thread after it has taken the event bitmap out.
1172  **/
1173 static void
1174 lpfc_rrq_timeout(unsigned long ptr)
1175 {
1176         struct lpfc_hba *phba;
1177         unsigned long iflag;
1178
1179         phba = (struct lpfc_hba *)ptr;
1180         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1181         if (!(phba->pport->load_flag & FC_UNLOADING))
1182                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1183         else
1184                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1185         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1186
1187         if (!(phba->pport->load_flag & FC_UNLOADING))
1188                 lpfc_worker_wake_up(phba);
1189 }
1190
1191 /**
1192  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1193  * @phba: pointer to lpfc hba data structure.
1194  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1195  *
1196  * This is the callback function to the lpfc heart-beat mailbox command.
1197  * If configured, the lpfc driver issues the heart-beat mailbox command to
1198  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1199  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1200  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1201  * heart-beat outstanding state. Once the mailbox command comes back and
1202  * no error conditions detected, the heart-beat mailbox command timer is
1203  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1204  * state is cleared for the next heart-beat. If the timer expired with the
1205  * heart-beat outstanding state set, the driver will put the HBA offline.
1206  **/
1207 static void
1208 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1209 {
1210         unsigned long drvr_flag;
1211
1212         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1213         phba->hb_outstanding = 0;
1214         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1215
1216         /* Check and reset heart-beat timer is necessary */
1217         mempool_free(pmboxq, phba->mbox_mem_pool);
1218         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1219                 !(phba->link_state == LPFC_HBA_ERROR) &&
1220                 !(phba->pport->load_flag & FC_UNLOADING))
1221                 mod_timer(&phba->hb_tmofunc,
1222                           jiffies +
1223                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1224         return;
1225 }
1226
1227 /**
1228  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1229  * @phba: pointer to lpfc hba data structure.
1230  *
1231  * This is the actual HBA-timer timeout handler to be invoked by the worker
1232  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1233  * handler performs any periodic operations needed for the device. If such
1234  * periodic event has already been attended to either in the interrupt handler
1235  * or by processing slow-ring or fast-ring events within the HBA-timer
1236  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1237  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1238  * is configured and there is no heart-beat mailbox command outstanding, a
1239  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1240  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1241  * to offline.
1242  **/
1243 void
1244 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1245 {
1246         struct lpfc_vport **vports;
1247         LPFC_MBOXQ_t *pmboxq;
1248         struct lpfc_dmabuf *buf_ptr;
1249         int retval, i;
1250         struct lpfc_sli *psli = &phba->sli;
1251         LIST_HEAD(completions);
1252
1253         vports = lpfc_create_vport_work_array(phba);
1254         if (vports != NULL)
1255                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1256                         lpfc_rcv_seq_check_edtov(vports[i]);
1257                         lpfc_fdmi_num_disc_check(vports[i]);
1258                 }
1259         lpfc_destroy_vport_work_array(phba, vports);
1260
1261         if ((phba->link_state == LPFC_HBA_ERROR) ||
1262                 (phba->pport->load_flag & FC_UNLOADING) ||
1263                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1264                 return;
1265
1266         spin_lock_irq(&phba->pport->work_port_lock);
1267
1268         if (time_after(phba->last_completion_time +
1269                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1270                         jiffies)) {
1271                 spin_unlock_irq(&phba->pport->work_port_lock);
1272                 if (!phba->hb_outstanding)
1273                         mod_timer(&phba->hb_tmofunc,
1274                                 jiffies +
1275                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1276                 else
1277                         mod_timer(&phba->hb_tmofunc,
1278                                 jiffies +
1279                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1280                 return;
1281         }
1282         spin_unlock_irq(&phba->pport->work_port_lock);
1283
1284         if (phba->elsbuf_cnt &&
1285                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1286                 spin_lock_irq(&phba->hbalock);
1287                 list_splice_init(&phba->elsbuf, &completions);
1288                 phba->elsbuf_cnt = 0;
1289                 phba->elsbuf_prev_cnt = 0;
1290                 spin_unlock_irq(&phba->hbalock);
1291
1292                 while (!list_empty(&completions)) {
1293                         list_remove_head(&completions, buf_ptr,
1294                                 struct lpfc_dmabuf, list);
1295                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1296                         kfree(buf_ptr);
1297                 }
1298         }
1299         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1300
1301         /* If there is no heart beat outstanding, issue a heartbeat command */
1302         if (phba->cfg_enable_hba_heartbeat) {
1303                 if (!phba->hb_outstanding) {
1304                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1305                                 (list_empty(&psli->mboxq))) {
1306                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1307                                                         GFP_KERNEL);
1308                                 if (!pmboxq) {
1309                                         mod_timer(&phba->hb_tmofunc,
1310                                                  jiffies +
1311                                                  msecs_to_jiffies(1000 *
1312                                                  LPFC_HB_MBOX_INTERVAL));
1313                                         return;
1314                                 }
1315
1316                                 lpfc_heart_beat(phba, pmboxq);
1317                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1318                                 pmboxq->vport = phba->pport;
1319                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1320                                                 MBX_NOWAIT);
1321
1322                                 if (retval != MBX_BUSY &&
1323                                         retval != MBX_SUCCESS) {
1324                                         mempool_free(pmboxq,
1325                                                         phba->mbox_mem_pool);
1326                                         mod_timer(&phba->hb_tmofunc,
1327                                                 jiffies +
1328                                                 msecs_to_jiffies(1000 *
1329                                                 LPFC_HB_MBOX_INTERVAL));
1330                                         return;
1331                                 }
1332                                 phba->skipped_hb = 0;
1333                                 phba->hb_outstanding = 1;
1334                         } else if (time_before_eq(phba->last_completion_time,
1335                                         phba->skipped_hb)) {
1336                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1337                                         "2857 Last completion time not "
1338                                         " updated in %d ms\n",
1339                                         jiffies_to_msecs(jiffies
1340                                                  - phba->last_completion_time));
1341                         } else
1342                                 phba->skipped_hb = jiffies;
1343
1344                         mod_timer(&phba->hb_tmofunc,
1345                                  jiffies +
1346                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1347                         return;
1348                 } else {
1349                         /*
1350                         * If heart beat timeout called with hb_outstanding set
1351                         * we need to give the hb mailbox cmd a chance to
1352                         * complete or TMO.
1353                         */
1354                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1355                                         "0459 Adapter heartbeat still out"
1356                                         "standing:last compl time was %d ms.\n",
1357                                         jiffies_to_msecs(jiffies
1358                                                  - phba->last_completion_time));
1359                         mod_timer(&phba->hb_tmofunc,
1360                                 jiffies +
1361                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1362                 }
1363         } else {
1364                         mod_timer(&phba->hb_tmofunc,
1365                                 jiffies +
1366                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1367         }
1368 }
1369
1370 /**
1371  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1372  * @phba: pointer to lpfc hba data structure.
1373  *
1374  * This routine is called to bring the HBA offline when HBA hardware error
1375  * other than Port Error 6 has been detected.
1376  **/
1377 static void
1378 lpfc_offline_eratt(struct lpfc_hba *phba)
1379 {
1380         struct lpfc_sli   *psli = &phba->sli;
1381
1382         spin_lock_irq(&phba->hbalock);
1383         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1384         spin_unlock_irq(&phba->hbalock);
1385         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1386
1387         lpfc_offline(phba);
1388         lpfc_reset_barrier(phba);
1389         spin_lock_irq(&phba->hbalock);
1390         lpfc_sli_brdreset(phba);
1391         spin_unlock_irq(&phba->hbalock);
1392         lpfc_hba_down_post(phba);
1393         lpfc_sli_brdready(phba, HS_MBRDY);
1394         lpfc_unblock_mgmt_io(phba);
1395         phba->link_state = LPFC_HBA_ERROR;
1396         return;
1397 }
1398
1399 /**
1400  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1401  * @phba: pointer to lpfc hba data structure.
1402  *
1403  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1404  * other than Port Error 6 has been detected.
1405  **/
1406 void
1407 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1408 {
1409         spin_lock_irq(&phba->hbalock);
1410         phba->link_state = LPFC_HBA_ERROR;
1411         spin_unlock_irq(&phba->hbalock);
1412
1413         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1414         lpfc_offline(phba);
1415         lpfc_hba_down_post(phba);
1416         lpfc_unblock_mgmt_io(phba);
1417 }
1418
1419 /**
1420  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1421  * @phba: pointer to lpfc hba data structure.
1422  *
1423  * This routine is invoked to handle the deferred HBA hardware error
1424  * conditions. This type of error is indicated by HBA by setting ER1
1425  * and another ER bit in the host status register. The driver will
1426  * wait until the ER1 bit clears before handling the error condition.
1427  **/
1428 static void
1429 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1430 {
1431         uint32_t old_host_status = phba->work_hs;
1432         struct lpfc_sli *psli = &phba->sli;
1433
1434         /* If the pci channel is offline, ignore possible errors,
1435          * since we cannot communicate with the pci card anyway.
1436          */
1437         if (pci_channel_offline(phba->pcidev)) {
1438                 spin_lock_irq(&phba->hbalock);
1439                 phba->hba_flag &= ~DEFER_ERATT;
1440                 spin_unlock_irq(&phba->hbalock);
1441                 return;
1442         }
1443
1444         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1445                 "0479 Deferred Adapter Hardware Error "
1446                 "Data: x%x x%x x%x\n",
1447                 phba->work_hs,
1448                 phba->work_status[0], phba->work_status[1]);
1449
1450         spin_lock_irq(&phba->hbalock);
1451         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1452         spin_unlock_irq(&phba->hbalock);
1453
1454
1455         /*
1456          * Firmware stops when it triggred erratt. That could cause the I/Os
1457          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1458          * SCSI layer retry it after re-establishing link.
1459          */
1460         lpfc_sli_abort_fcp_rings(phba);
1461
1462         /*
1463          * There was a firmware error. Take the hba offline and then
1464          * attempt to restart it.
1465          */
1466         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1467         lpfc_offline(phba);
1468
1469         /* Wait for the ER1 bit to clear.*/
1470         while (phba->work_hs & HS_FFER1) {
1471                 msleep(100);
1472                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1473                         phba->work_hs = UNPLUG_ERR ;
1474                         break;
1475                 }
1476                 /* If driver is unloading let the worker thread continue */
1477                 if (phba->pport->load_flag & FC_UNLOADING) {
1478                         phba->work_hs = 0;
1479                         break;
1480                 }
1481         }
1482
1483         /*
1484          * This is to ptrotect against a race condition in which
1485          * first write to the host attention register clear the
1486          * host status register.
1487          */
1488         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1489                 phba->work_hs = old_host_status & ~HS_FFER1;
1490
1491         spin_lock_irq(&phba->hbalock);
1492         phba->hba_flag &= ~DEFER_ERATT;
1493         spin_unlock_irq(&phba->hbalock);
1494         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1495         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1496 }
1497
1498 static void
1499 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1500 {
1501         struct lpfc_board_event_header board_event;
1502         struct Scsi_Host *shost;
1503
1504         board_event.event_type = FC_REG_BOARD_EVENT;
1505         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1506         shost = lpfc_shost_from_vport(phba->pport);
1507         fc_host_post_vendor_event(shost, fc_get_event_number(),
1508                                   sizeof(board_event),
1509                                   (char *) &board_event,
1510                                   LPFC_NL_VENDOR_ID);
1511 }
1512
1513 /**
1514  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1515  * @phba: pointer to lpfc hba data structure.
1516  *
1517  * This routine is invoked to handle the following HBA hardware error
1518  * conditions:
1519  * 1 - HBA error attention interrupt
1520  * 2 - DMA ring index out of range
1521  * 3 - Mailbox command came back as unknown
1522  **/
1523 static void
1524 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1525 {
1526         struct lpfc_vport *vport = phba->pport;
1527         struct lpfc_sli   *psli = &phba->sli;
1528         uint32_t event_data;
1529         unsigned long temperature;
1530         struct temp_event temp_event_data;
1531         struct Scsi_Host  *shost;
1532
1533         /* If the pci channel is offline, ignore possible errors,
1534          * since we cannot communicate with the pci card anyway.
1535          */
1536         if (pci_channel_offline(phba->pcidev)) {
1537                 spin_lock_irq(&phba->hbalock);
1538                 phba->hba_flag &= ~DEFER_ERATT;
1539                 spin_unlock_irq(&phba->hbalock);
1540                 return;
1541         }
1542
1543         /* If resets are disabled then leave the HBA alone and return */
1544         if (!phba->cfg_enable_hba_reset)
1545                 return;
1546
1547         /* Send an internal error event to mgmt application */
1548         lpfc_board_errevt_to_mgmt(phba);
1549
1550         if (phba->hba_flag & DEFER_ERATT)
1551                 lpfc_handle_deferred_eratt(phba);
1552
1553         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1554                 if (phba->work_hs & HS_FFER6)
1555                         /* Re-establishing Link */
1556                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1557                                         "1301 Re-establishing Link "
1558                                         "Data: x%x x%x x%x\n",
1559                                         phba->work_hs, phba->work_status[0],
1560                                         phba->work_status[1]);
1561                 if (phba->work_hs & HS_FFER8)
1562                         /* Device Zeroization */
1563                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1564                                         "2861 Host Authentication device "
1565                                         "zeroization Data:x%x x%x x%x\n",
1566                                         phba->work_hs, phba->work_status[0],
1567                                         phba->work_status[1]);
1568
1569                 spin_lock_irq(&phba->hbalock);
1570                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1571                 spin_unlock_irq(&phba->hbalock);
1572
1573                 /*
1574                 * Firmware stops when it triggled erratt with HS_FFER6.
1575                 * That could cause the I/Os dropped by the firmware.
1576                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1577                 * retry it after re-establishing link.
1578                 */
1579                 lpfc_sli_abort_fcp_rings(phba);
1580
1581                 /*
1582                  * There was a firmware error.  Take the hba offline and then
1583                  * attempt to restart it.
1584                  */
1585                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1586                 lpfc_offline(phba);
1587                 lpfc_sli_brdrestart(phba);
1588                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1589                         lpfc_unblock_mgmt_io(phba);
1590                         return;
1591                 }
1592                 lpfc_unblock_mgmt_io(phba);
1593         } else if (phba->work_hs & HS_CRIT_TEMP) {
1594                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1595                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1596                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1597                 temp_event_data.data = (uint32_t)temperature;
1598
1599                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1600                                 "0406 Adapter maximum temperature exceeded "
1601                                 "(%ld), taking this port offline "
1602                                 "Data: x%x x%x x%x\n",
1603                                 temperature, phba->work_hs,
1604                                 phba->work_status[0], phba->work_status[1]);
1605
1606                 shost = lpfc_shost_from_vport(phba->pport);
1607                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1608                                           sizeof(temp_event_data),
1609                                           (char *) &temp_event_data,
1610                                           SCSI_NL_VID_TYPE_PCI
1611                                           | PCI_VENDOR_ID_EMULEX);
1612
1613                 spin_lock_irq(&phba->hbalock);
1614                 phba->over_temp_state = HBA_OVER_TEMP;
1615                 spin_unlock_irq(&phba->hbalock);
1616                 lpfc_offline_eratt(phba);
1617
1618         } else {
1619                 /* The if clause above forces this code path when the status
1620                  * failure is a value other than FFER6. Do not call the offline
1621                  * twice. This is the adapter hardware error path.
1622                  */
1623                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1624                                 "0457 Adapter Hardware Error "
1625                                 "Data: x%x x%x x%x\n",
1626                                 phba->work_hs,
1627                                 phba->work_status[0], phba->work_status[1]);
1628
1629                 event_data = FC_REG_DUMP_EVENT;
1630                 shost = lpfc_shost_from_vport(vport);
1631                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1632                                 sizeof(event_data), (char *) &event_data,
1633                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1634
1635                 lpfc_offline_eratt(phba);
1636         }
1637         return;
1638 }
1639
1640 /**
1641  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1642  * @phba: pointer to lpfc hba data structure.
1643  * @mbx_action: flag for mailbox shutdown action.
1644  *
1645  * This routine is invoked to perform an SLI4 port PCI function reset in
1646  * response to port status register polling attention. It waits for port
1647  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1648  * During this process, interrupt vectors are freed and later requested
1649  * for handling possible port resource change.
1650  **/
1651 static int
1652 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1653                             bool en_rn_msg)
1654 {
1655         int rc;
1656         uint32_t intr_mode;
1657
1658         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
1659             LPFC_SLI_INTF_IF_TYPE_2) {
1660                 /*
1661                  * On error status condition, driver need to wait for port
1662                  * ready before performing reset.
1663                  */
1664                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1665                 if (rc)
1666                         return rc;
1667         }
1668
1669         /* need reset: attempt for port recovery */
1670         if (en_rn_msg)
1671                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1672                                 "2887 Reset Needed: Attempting Port "
1673                                 "Recovery...\n");
1674         lpfc_offline_prep(phba, mbx_action);
1675         lpfc_offline(phba);
1676         /* release interrupt for possible resource change */
1677         lpfc_sli4_disable_intr(phba);
1678         lpfc_sli_brdrestart(phba);
1679         /* request and enable interrupt */
1680         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1681         if (intr_mode == LPFC_INTR_ERROR) {
1682                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1683                                 "3175 Failed to enable interrupt\n");
1684                 return -EIO;
1685         }
1686         phba->intr_mode = intr_mode;
1687         rc = lpfc_online(phba);
1688         if (rc == 0)
1689                 lpfc_unblock_mgmt_io(phba);
1690
1691         return rc;
1692 }
1693
1694 /**
1695  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1696  * @phba: pointer to lpfc hba data structure.
1697  *
1698  * This routine is invoked to handle the SLI4 HBA hardware error attention
1699  * conditions.
1700  **/
1701 static void
1702 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1703 {
1704         struct lpfc_vport *vport = phba->pport;
1705         uint32_t event_data;
1706         struct Scsi_Host *shost;
1707         uint32_t if_type;
1708         struct lpfc_register portstat_reg = {0};
1709         uint32_t reg_err1, reg_err2;
1710         uint32_t uerrlo_reg, uemasklo_reg;
1711         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1712         bool en_rn_msg = true;
1713         struct temp_event temp_event_data;
1714         struct lpfc_register portsmphr_reg;
1715         int rc, i;
1716
1717         /* If the pci channel is offline, ignore possible errors, since
1718          * we cannot communicate with the pci card anyway.
1719          */
1720         if (pci_channel_offline(phba->pcidev))
1721                 return;
1722
1723         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1724         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1725         switch (if_type) {
1726         case LPFC_SLI_INTF_IF_TYPE_0:
1727                 pci_rd_rc1 = lpfc_readl(
1728                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1729                                 &uerrlo_reg);
1730                 pci_rd_rc2 = lpfc_readl(
1731                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1732                                 &uemasklo_reg);
1733                 /* consider PCI bus read error as pci_channel_offline */
1734                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1735                         return;
1736                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1737                         lpfc_sli4_offline_eratt(phba);
1738                         return;
1739                 }
1740                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1741                                 "7623 Checking UE recoverable");
1742
1743                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1744                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1745                                        &portsmphr_reg.word0))
1746                                 continue;
1747
1748                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1749                                                    &portsmphr_reg);
1750                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1751                             LPFC_PORT_SEM_UE_RECOVERABLE)
1752                                 break;
1753                         /*Sleep for 1Sec, before checking SEMAPHORE */
1754                         msleep(1000);
1755                 }
1756
1757                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1758                                 "4827 smphr_port_status x%x : Waited %dSec",
1759                                 smphr_port_status, i);
1760
1761                 /* Recoverable UE, reset the HBA device */
1762                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1763                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1764                         for (i = 0; i < 20; i++) {
1765                                 msleep(1000);
1766                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1767                                     &portsmphr_reg.word0) &&
1768                                     (LPFC_POST_STAGE_PORT_READY ==
1769                                      bf_get(lpfc_port_smphr_port_status,
1770                                      &portsmphr_reg))) {
1771                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
1772                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
1773                                         if (rc == 0)
1774                                                 return;
1775                                         lpfc_printf_log(phba,
1776                                                 KERN_ERR, LOG_INIT,
1777                                                 "4215 Failed to recover UE");
1778                                         break;
1779                                 }
1780                         }
1781                 }
1782                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1783                                 "7624 Firmware not ready: Failing UE recovery,"
1784                                 " waited %dSec", i);
1785                 lpfc_sli4_offline_eratt(phba);
1786                 break;
1787
1788         case LPFC_SLI_INTF_IF_TYPE_2:
1789                 pci_rd_rc1 = lpfc_readl(
1790                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1791                                 &portstat_reg.word0);
1792                 /* consider PCI bus read error as pci_channel_offline */
1793                 if (pci_rd_rc1 == -EIO) {
1794                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1795                                 "3151 PCI bus read access failure: x%x\n",
1796                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1797                         return;
1798                 }
1799                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1800                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1801                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1802                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1803                                 "2889 Port Overtemperature event, "
1804                                 "taking port offline Data: x%x x%x\n",
1805                                 reg_err1, reg_err2);
1806
1807                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1808                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1809                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1810                         temp_event_data.data = 0xFFFFFFFF;
1811
1812                         shost = lpfc_shost_from_vport(phba->pport);
1813                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1814                                                   sizeof(temp_event_data),
1815                                                   (char *)&temp_event_data,
1816                                                   SCSI_NL_VID_TYPE_PCI
1817                                                   | PCI_VENDOR_ID_EMULEX);
1818
1819                         spin_lock_irq(&phba->hbalock);
1820                         phba->over_temp_state = HBA_OVER_TEMP;
1821                         spin_unlock_irq(&phba->hbalock);
1822                         lpfc_sli4_offline_eratt(phba);
1823                         return;
1824                 }
1825                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1826                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1827                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1828                                         "3143 Port Down: Firmware Update "
1829                                         "Detected\n");
1830                         en_rn_msg = false;
1831                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1832                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1833                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1834                                         "3144 Port Down: Debug Dump\n");
1835                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1836                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1837                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1838                                         "3145 Port Down: Provisioning\n");
1839
1840                 /* If resets are disabled then leave the HBA alone and return */
1841                 if (!phba->cfg_enable_hba_reset)
1842                         return;
1843
1844                 /* Check port status register for function reset */
1845                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1846                                 en_rn_msg);
1847                 if (rc == 0) {
1848                         /* don't report event on forced debug dump */
1849                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1850                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1851                                 return;
1852                         else
1853                                 break;
1854                 }
1855                 /* fall through for not able to recover */
1856                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1857                                 "3152 Unrecoverable error, bring the port "
1858                                 "offline\n");
1859                 lpfc_sli4_offline_eratt(phba);
1860                 break;
1861         case LPFC_SLI_INTF_IF_TYPE_1:
1862         default:
1863                 break;
1864         }
1865         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1866                         "3123 Report dump event to upper layer\n");
1867         /* Send an internal error event to mgmt application */
1868         lpfc_board_errevt_to_mgmt(phba);
1869
1870         event_data = FC_REG_DUMP_EVENT;
1871         shost = lpfc_shost_from_vport(vport);
1872         fc_host_post_vendor_event(shost, fc_get_event_number(),
1873                                   sizeof(event_data), (char *) &event_data,
1874                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1875 }
1876
1877 /**
1878  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1879  * @phba: pointer to lpfc HBA data structure.
1880  *
1881  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1882  * routine from the API jump table function pointer from the lpfc_hba struct.
1883  *
1884  * Return codes
1885  *   0 - success.
1886  *   Any other value - error.
1887  **/
1888 void
1889 lpfc_handle_eratt(struct lpfc_hba *phba)
1890 {
1891         (*phba->lpfc_handle_eratt)(phba);
1892 }
1893
1894 /**
1895  * lpfc_handle_latt - The HBA link event handler
1896  * @phba: pointer to lpfc hba data structure.
1897  *
1898  * This routine is invoked from the worker thread to handle a HBA host
1899  * attention link event. SLI3 only.
1900  **/
1901 void
1902 lpfc_handle_latt(struct lpfc_hba *phba)
1903 {
1904         struct lpfc_vport *vport = phba->pport;
1905         struct lpfc_sli   *psli = &phba->sli;
1906         LPFC_MBOXQ_t *pmb;
1907         volatile uint32_t control;
1908         struct lpfc_dmabuf *mp;
1909         int rc = 0;
1910
1911         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1912         if (!pmb) {
1913                 rc = 1;
1914                 goto lpfc_handle_latt_err_exit;
1915         }
1916
1917         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1918         if (!mp) {
1919                 rc = 2;
1920                 goto lpfc_handle_latt_free_pmb;
1921         }
1922
1923         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1924         if (!mp->virt) {
1925                 rc = 3;
1926                 goto lpfc_handle_latt_free_mp;
1927         }
1928
1929         /* Cleanup any outstanding ELS commands */
1930         lpfc_els_flush_all_cmd(phba);
1931
1932         psli->slistat.link_event++;
1933         lpfc_read_topology(phba, pmb, mp);
1934         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1935         pmb->vport = vport;
1936         /* Block ELS IOCBs until we have processed this mbox command */
1937         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1938         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1939         if (rc == MBX_NOT_FINISHED) {
1940                 rc = 4;
1941                 goto lpfc_handle_latt_free_mbuf;
1942         }
1943
1944         /* Clear Link Attention in HA REG */
1945         spin_lock_irq(&phba->hbalock);
1946         writel(HA_LATT, phba->HAregaddr);
1947         readl(phba->HAregaddr); /* flush */
1948         spin_unlock_irq(&phba->hbalock);
1949
1950         return;
1951
1952 lpfc_handle_latt_free_mbuf:
1953         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1954         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1955 lpfc_handle_latt_free_mp:
1956         kfree(mp);
1957 lpfc_handle_latt_free_pmb:
1958         mempool_free(pmb, phba->mbox_mem_pool);
1959 lpfc_handle_latt_err_exit:
1960         /* Enable Link attention interrupts */
1961         spin_lock_irq(&phba->hbalock);
1962         psli->sli_flag |= LPFC_PROCESS_LA;
1963         control = readl(phba->HCregaddr);
1964         control |= HC_LAINT_ENA;
1965         writel(control, phba->HCregaddr);
1966         readl(phba->HCregaddr); /* flush */
1967
1968         /* Clear Link Attention in HA REG */
1969         writel(HA_LATT, phba->HAregaddr);
1970         readl(phba->HAregaddr); /* flush */
1971         spin_unlock_irq(&phba->hbalock);
1972         lpfc_linkdown(phba);
1973         phba->link_state = LPFC_HBA_ERROR;
1974
1975         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1976                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1977
1978         return;
1979 }
1980
1981 /**
1982  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1983  * @phba: pointer to lpfc hba data structure.
1984  * @vpd: pointer to the vital product data.
1985  * @len: length of the vital product data in bytes.
1986  *
1987  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1988  * an array of characters. In this routine, the ModelName, ProgramType, and
1989  * ModelDesc, etc. fields of the phba data structure will be populated.
1990  *
1991  * Return codes
1992  *   0 - pointer to the VPD passed in is NULL
1993  *   1 - success
1994  **/
1995 int
1996 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1997 {
1998         uint8_t lenlo, lenhi;
1999         int Length;
2000         int i, j;
2001         int finished = 0;
2002         int index = 0;
2003
2004         if (!vpd)
2005                 return 0;
2006
2007         /* Vital Product */
2008         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2009                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2010                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2011                         (uint32_t) vpd[3]);
2012         while (!finished && (index < (len - 4))) {
2013                 switch (vpd[index]) {
2014                 case 0x82:
2015                 case 0x91:
2016                         index += 1;
2017                         lenlo = vpd[index];
2018                         index += 1;
2019                         lenhi = vpd[index];
2020                         index += 1;
2021                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2022                         index += i;
2023                         break;
2024                 case 0x90:
2025                         index += 1;
2026                         lenlo = vpd[index];
2027                         index += 1;
2028                         lenhi = vpd[index];
2029                         index += 1;
2030                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2031                         if (Length > len - index)
2032                                 Length = len - index;
2033                         while (Length > 0) {
2034                         /* Look for Serial Number */
2035                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2036                                 index += 2;
2037                                 i = vpd[index];
2038                                 index += 1;
2039                                 j = 0;
2040                                 Length -= (3+i);
2041                                 while(i--) {
2042                                         phba->SerialNumber[j++] = vpd[index++];
2043                                         if (j == 31)
2044                                                 break;
2045                                 }
2046                                 phba->SerialNumber[j] = 0;
2047                                 continue;
2048                         }
2049                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2050                                 phba->vpd_flag |= VPD_MODEL_DESC;
2051                                 index += 2;
2052                                 i = vpd[index];
2053                                 index += 1;
2054                                 j = 0;
2055                                 Length -= (3+i);
2056                                 while(i--) {
2057                                         phba->ModelDesc[j++] = vpd[index++];
2058                                         if (j == 255)
2059                                                 break;
2060                                 }
2061                                 phba->ModelDesc[j] = 0;
2062                                 continue;
2063                         }
2064                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2065                                 phba->vpd_flag |= VPD_MODEL_NAME;
2066                                 index += 2;
2067                                 i = vpd[index];
2068                                 index += 1;
2069                                 j = 0;
2070                                 Length -= (3+i);
2071                                 while(i--) {
2072                                         phba->ModelName[j++] = vpd[index++];
2073                                         if (j == 79)
2074                                                 break;
2075                                 }
2076                                 phba->ModelName[j] = 0;
2077                                 continue;
2078                         }
2079                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2080                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2081                                 index += 2;
2082                                 i = vpd[index];
2083                                 index += 1;
2084                                 j = 0;
2085                                 Length -= (3+i);
2086                                 while(i--) {
2087                                         phba->ProgramType[j++] = vpd[index++];
2088                                         if (j == 255)
2089                                                 break;
2090                                 }
2091                                 phba->ProgramType[j] = 0;
2092                                 continue;
2093                         }
2094                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2095                                 phba->vpd_flag |= VPD_PORT;
2096                                 index += 2;
2097                                 i = vpd[index];
2098                                 index += 1;
2099                                 j = 0;
2100                                 Length -= (3+i);
2101                                 while(i--) {
2102                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2103                                             (phba->sli4_hba.pport_name_sta ==
2104                                              LPFC_SLI4_PPNAME_GET)) {
2105                                                 j++;
2106                                                 index++;
2107                                         } else
2108                                                 phba->Port[j++] = vpd[index++];
2109                                         if (j == 19)
2110                                                 break;
2111                                 }
2112                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2113                                     (phba->sli4_hba.pport_name_sta ==
2114                                      LPFC_SLI4_PPNAME_NON))
2115                                         phba->Port[j] = 0;
2116                                 continue;
2117                         }
2118                         else {
2119                                 index += 2;
2120                                 i = vpd[index];
2121                                 index += 1;
2122                                 index += i;
2123                                 Length -= (3 + i);
2124                         }
2125                 }
2126                 finished = 0;
2127                 break;
2128                 case 0x78:
2129                         finished = 1;
2130                         break;
2131                 default:
2132                         index ++;
2133                         break;
2134                 }
2135         }
2136
2137         return(1);
2138 }
2139
2140 /**
2141  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2142  * @phba: pointer to lpfc hba data structure.
2143  * @mdp: pointer to the data structure to hold the derived model name.
2144  * @descp: pointer to the data structure to hold the derived description.
2145  *
2146  * This routine retrieves HBA's description based on its registered PCI device
2147  * ID. The @descp passed into this function points to an array of 256 chars. It
2148  * shall be returned with the model name, maximum speed, and the host bus type.
2149  * The @mdp passed into this function points to an array of 80 chars. When the
2150  * function returns, the @mdp will be filled with the model name.
2151  **/
2152 static void
2153 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2154 {
2155         lpfc_vpd_t *vp;
2156         uint16_t dev_id = phba->pcidev->device;
2157         int max_speed;
2158         int GE = 0;
2159         int oneConnect = 0; /* default is not a oneConnect */
2160         struct {
2161                 char *name;
2162                 char *bus;
2163                 char *function;
2164         } m = {"<Unknown>", "", ""};
2165
2166         if (mdp && mdp[0] != '\0'
2167                 && descp && descp[0] != '\0')
2168                 return;
2169
2170         if (phba->lmt & LMT_32Gb)
2171                 max_speed = 32;
2172         else if (phba->lmt & LMT_16Gb)
2173                 max_speed = 16;
2174         else if (phba->lmt & LMT_10Gb)
2175                 max_speed = 10;
2176         else if (phba->lmt & LMT_8Gb)
2177                 max_speed = 8;
2178         else if (phba->lmt & LMT_4Gb)
2179                 max_speed = 4;
2180         else if (phba->lmt & LMT_2Gb)
2181                 max_speed = 2;
2182         else if (phba->lmt & LMT_1Gb)
2183                 max_speed = 1;
2184         else
2185                 max_speed = 0;
2186
2187         vp = &phba->vpd;
2188
2189         switch (dev_id) {
2190         case PCI_DEVICE_ID_FIREFLY:
2191                 m = (typeof(m)){"LP6000", "PCI",
2192                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2193                 break;
2194         case PCI_DEVICE_ID_SUPERFLY:
2195                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2196                         m = (typeof(m)){"LP7000", "PCI", ""};
2197                 else
2198                         m = (typeof(m)){"LP7000E", "PCI", ""};
2199                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2200                 break;
2201         case PCI_DEVICE_ID_DRAGONFLY:
2202                 m = (typeof(m)){"LP8000", "PCI",
2203                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2204                 break;
2205         case PCI_DEVICE_ID_CENTAUR:
2206                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2207                         m = (typeof(m)){"LP9002", "PCI", ""};
2208                 else
2209                         m = (typeof(m)){"LP9000", "PCI", ""};
2210                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2211                 break;
2212         case PCI_DEVICE_ID_RFLY:
2213                 m = (typeof(m)){"LP952", "PCI",
2214                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2215                 break;
2216         case PCI_DEVICE_ID_PEGASUS:
2217                 m = (typeof(m)){"LP9802", "PCI-X",
2218                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2219                 break;
2220         case PCI_DEVICE_ID_THOR:
2221                 m = (typeof(m)){"LP10000", "PCI-X",
2222                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2223                 break;
2224         case PCI_DEVICE_ID_VIPER:
2225                 m = (typeof(m)){"LPX1000",  "PCI-X",
2226                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2227                 break;
2228         case PCI_DEVICE_ID_PFLY:
2229                 m = (typeof(m)){"LP982", "PCI-X",
2230                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2231                 break;
2232         case PCI_DEVICE_ID_TFLY:
2233                 m = (typeof(m)){"LP1050", "PCI-X",
2234                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2235                 break;
2236         case PCI_DEVICE_ID_HELIOS:
2237                 m = (typeof(m)){"LP11000", "PCI-X2",
2238                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2239                 break;
2240         case PCI_DEVICE_ID_HELIOS_SCSP:
2241                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2242                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2243                 break;
2244         case PCI_DEVICE_ID_HELIOS_DCSP:
2245                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2246                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2247                 break;
2248         case PCI_DEVICE_ID_NEPTUNE:
2249                 m = (typeof(m)){"LPe1000", "PCIe",
2250                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2251                 break;
2252         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2253                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2254                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2255                 break;
2256         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2257                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2258                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2259                 break;
2260         case PCI_DEVICE_ID_BMID:
2261                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2262                 break;
2263         case PCI_DEVICE_ID_BSMB:
2264                 m = (typeof(m)){"LP111", "PCI-X2",
2265                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2266                 break;
2267         case PCI_DEVICE_ID_ZEPHYR:
2268                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2269                 break;
2270         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2271                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2272                 break;
2273         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2274                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2275                 GE = 1;
2276                 break;
2277         case PCI_DEVICE_ID_ZMID:
2278                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2279                 break;
2280         case PCI_DEVICE_ID_ZSMB:
2281                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2282                 break;
2283         case PCI_DEVICE_ID_LP101:
2284                 m = (typeof(m)){"LP101", "PCI-X",
2285                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2286                 break;
2287         case PCI_DEVICE_ID_LP10000S:
2288                 m = (typeof(m)){"LP10000-S", "PCI",
2289                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2290                 break;
2291         case PCI_DEVICE_ID_LP11000S:
2292                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2293                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2294                 break;
2295         case PCI_DEVICE_ID_LPE11000S:
2296                 m = (typeof(m)){"LPe11000-S", "PCIe",
2297                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2298                 break;
2299         case PCI_DEVICE_ID_SAT:
2300                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2301                 break;
2302         case PCI_DEVICE_ID_SAT_MID:
2303                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2304                 break;
2305         case PCI_DEVICE_ID_SAT_SMB:
2306                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2307                 break;
2308         case PCI_DEVICE_ID_SAT_DCSP:
2309                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2310                 break;
2311         case PCI_DEVICE_ID_SAT_SCSP:
2312                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2313                 break;
2314         case PCI_DEVICE_ID_SAT_S:
2315                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2316                 break;
2317         case PCI_DEVICE_ID_HORNET:
2318                 m = (typeof(m)){"LP21000", "PCIe",
2319                                 "Obsolete, Unsupported FCoE Adapter"};
2320                 GE = 1;
2321                 break;
2322         case PCI_DEVICE_ID_PROTEUS_VF:
2323                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2324                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2325                 break;
2326         case PCI_DEVICE_ID_PROTEUS_PF:
2327                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2328                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2329                 break;
2330         case PCI_DEVICE_ID_PROTEUS_S:
2331                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2332                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2333                 break;
2334         case PCI_DEVICE_ID_TIGERSHARK:
2335                 oneConnect = 1;
2336                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2337                 break;
2338         case PCI_DEVICE_ID_TOMCAT:
2339                 oneConnect = 1;
2340                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2341                 break;
2342         case PCI_DEVICE_ID_FALCON:
2343                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2344                                 "EmulexSecure Fibre"};
2345                 break;
2346         case PCI_DEVICE_ID_BALIUS:
2347                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2348                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2349                 break;
2350         case PCI_DEVICE_ID_LANCER_FC:
2351                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2352                 break;
2353         case PCI_DEVICE_ID_LANCER_FC_VF:
2354                 m = (typeof(m)){"LPe16000", "PCIe",
2355                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2356                 break;
2357         case PCI_DEVICE_ID_LANCER_FCOE:
2358                 oneConnect = 1;
2359                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2360                 break;
2361         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2362                 oneConnect = 1;
2363                 m = (typeof(m)){"OCe15100", "PCIe",
2364                                 "Obsolete, Unsupported FCoE"};
2365                 break;
2366         case PCI_DEVICE_ID_LANCER_G6_FC:
2367                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2368                 break;
2369         case PCI_DEVICE_ID_SKYHAWK:
2370         case PCI_DEVICE_ID_SKYHAWK_VF:
2371                 oneConnect = 1;
2372                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2373                 break;
2374         default:
2375                 m = (typeof(m)){"Unknown", "", ""};
2376                 break;
2377         }
2378
2379         if (mdp && mdp[0] == '\0')
2380                 snprintf(mdp, 79,"%s", m.name);
2381         /*
2382          * oneConnect hba requires special processing, they are all initiators
2383          * and we put the port number on the end
2384          */
2385         if (descp && descp[0] == '\0') {
2386                 if (oneConnect)
2387                         snprintf(descp, 255,
2388                                 "Emulex OneConnect %s, %s Initiator %s",
2389                                 m.name, m.function,
2390                                 phba->Port);
2391                 else if (max_speed == 0)
2392                         snprintf(descp, 255,
2393                                 "Emulex %s %s %s",
2394                                 m.name, m.bus, m.function);
2395                 else
2396                         snprintf(descp, 255,
2397                                 "Emulex %s %d%s %s %s",
2398                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2399                                 m.bus, m.function);
2400         }
2401 }
2402
2403 /**
2404  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2405  * @phba: pointer to lpfc hba data structure.
2406  * @pring: pointer to a IOCB ring.
2407  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2408  *
2409  * This routine posts a given number of IOCBs with the associated DMA buffer
2410  * descriptors specified by the cnt argument to the given IOCB ring.
2411  *
2412  * Return codes
2413  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2414  **/
2415 int
2416 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2417 {
2418         IOCB_t *icmd;
2419         struct lpfc_iocbq *iocb;
2420         struct lpfc_dmabuf *mp1, *mp2;
2421
2422         cnt += pring->missbufcnt;
2423
2424         /* While there are buffers to post */
2425         while (cnt > 0) {
2426                 /* Allocate buffer for  command iocb */
2427                 iocb = lpfc_sli_get_iocbq(phba);
2428                 if (iocb == NULL) {
2429                         pring->missbufcnt = cnt;
2430                         return cnt;
2431                 }
2432                 icmd = &iocb->iocb;
2433
2434                 /* 2 buffers can be posted per command */
2435                 /* Allocate buffer to post */
2436                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2437                 if (mp1)
2438                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2439                 if (!mp1 || !mp1->virt) {
2440                         kfree(mp1);
2441                         lpfc_sli_release_iocbq(phba, iocb);
2442                         pring->missbufcnt = cnt;
2443                         return cnt;
2444                 }
2445
2446                 INIT_LIST_HEAD(&mp1->list);
2447                 /* Allocate buffer to post */
2448                 if (cnt > 1) {
2449                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2450                         if (mp2)
2451                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2452                                                             &mp2->phys);
2453                         if (!mp2 || !mp2->virt) {
2454                                 kfree(mp2);
2455                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2456                                 kfree(mp1);
2457                                 lpfc_sli_release_iocbq(phba, iocb);
2458                                 pring->missbufcnt = cnt;
2459                                 return cnt;
2460                         }
2461
2462                         INIT_LIST_HEAD(&mp2->list);
2463                 } else {
2464                         mp2 = NULL;
2465                 }
2466
2467                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2468                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2469                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2470                 icmd->ulpBdeCount = 1;
2471                 cnt--;
2472                 if (mp2) {
2473                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2474                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2475                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2476                         cnt--;
2477                         icmd->ulpBdeCount = 2;
2478                 }
2479
2480                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2481                 icmd->ulpLe = 1;
2482
2483                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2484                     IOCB_ERROR) {
2485                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2486                         kfree(mp1);
2487                         cnt++;
2488                         if (mp2) {
2489                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2490                                 kfree(mp2);
2491                                 cnt++;
2492                         }
2493                         lpfc_sli_release_iocbq(phba, iocb);
2494                         pring->missbufcnt = cnt;
2495                         return cnt;
2496                 }
2497                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2498                 if (mp2)
2499                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2500         }
2501         pring->missbufcnt = 0;
2502         return 0;
2503 }
2504
2505 /**
2506  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2507  * @phba: pointer to lpfc hba data structure.
2508  *
2509  * This routine posts initial receive IOCB buffers to the ELS ring. The
2510  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2511  * set to 64 IOCBs. SLI3 only.
2512  *
2513  * Return codes
2514  *   0 - success (currently always success)
2515  **/
2516 static int
2517 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2518 {
2519         struct lpfc_sli *psli = &phba->sli;
2520
2521         /* Ring 0, ELS / CT buffers */
2522         lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2523         /* Ring 2 - FCP no buffers needed */
2524
2525         return 0;
2526 }
2527
2528 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2529
2530 /**
2531  * lpfc_sha_init - Set up initial array of hash table entries
2532  * @HashResultPointer: pointer to an array as hash table.
2533  *
2534  * This routine sets up the initial values to the array of hash table entries
2535  * for the LC HBAs.
2536  **/
2537 static void
2538 lpfc_sha_init(uint32_t * HashResultPointer)
2539 {
2540         HashResultPointer[0] = 0x67452301;
2541         HashResultPointer[1] = 0xEFCDAB89;
2542         HashResultPointer[2] = 0x98BADCFE;
2543         HashResultPointer[3] = 0x10325476;
2544         HashResultPointer[4] = 0xC3D2E1F0;
2545 }
2546
2547 /**
2548  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2549  * @HashResultPointer: pointer to an initial/result hash table.
2550  * @HashWorkingPointer: pointer to an working hash table.
2551  *
2552  * This routine iterates an initial hash table pointed by @HashResultPointer
2553  * with the values from the working hash table pointeed by @HashWorkingPointer.
2554  * The results are putting back to the initial hash table, returned through
2555  * the @HashResultPointer as the result hash table.
2556  **/
2557 static void
2558 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2559 {
2560         int t;
2561         uint32_t TEMP;
2562         uint32_t A, B, C, D, E;
2563         t = 16;
2564         do {
2565                 HashWorkingPointer[t] =
2566                     S(1,
2567                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2568                                                                      8] ^
2569                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2570         } while (++t <= 79);
2571         t = 0;
2572         A = HashResultPointer[0];
2573         B = HashResultPointer[1];
2574         C = HashResultPointer[2];
2575         D = HashResultPointer[3];
2576         E = HashResultPointer[4];
2577
2578         do {
2579                 if (t < 20) {
2580                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2581                 } else if (t < 40) {
2582                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2583                 } else if (t < 60) {
2584                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2585                 } else {
2586                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2587                 }
2588                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2589                 E = D;
2590                 D = C;
2591                 C = S(30, B);
2592                 B = A;
2593                 A = TEMP;
2594         } while (++t <= 79);
2595
2596         HashResultPointer[0] += A;
2597         HashResultPointer[1] += B;
2598         HashResultPointer[2] += C;
2599         HashResultPointer[3] += D;
2600         HashResultPointer[4] += E;
2601
2602 }
2603
2604 /**
2605  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2606  * @RandomChallenge: pointer to the entry of host challenge random number array.
2607  * @HashWorking: pointer to the entry of the working hash array.
2608  *
2609  * This routine calculates the working hash array referred by @HashWorking
2610  * from the challenge random numbers associated with the host, referred by
2611  * @RandomChallenge. The result is put into the entry of the working hash
2612  * array and returned by reference through @HashWorking.
2613  **/
2614 static void
2615 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2616 {
2617         *HashWorking = (*RandomChallenge ^ *HashWorking);
2618 }
2619
2620 /**
2621  * lpfc_hba_init - Perform special handling for LC HBA initialization
2622  * @phba: pointer to lpfc hba data structure.
2623  * @hbainit: pointer to an array of unsigned 32-bit integers.
2624  *
2625  * This routine performs the special handling for LC HBA initialization.
2626  **/
2627 void
2628 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2629 {
2630         int t;
2631         uint32_t *HashWorking;
2632         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2633
2634         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2635         if (!HashWorking)
2636                 return;
2637
2638         HashWorking[0] = HashWorking[78] = *pwwnn++;
2639         HashWorking[1] = HashWorking[79] = *pwwnn;
2640
2641         for (t = 0; t < 7; t++)
2642                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2643
2644         lpfc_sha_init(hbainit);
2645         lpfc_sha_iterate(hbainit, HashWorking);
2646         kfree(HashWorking);
2647 }
2648
2649 /**
2650  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2651  * @vport: pointer to a virtual N_Port data structure.
2652  *
2653  * This routine performs the necessary cleanups before deleting the @vport.
2654  * It invokes the discovery state machine to perform necessary state
2655  * transitions and to release the ndlps associated with the @vport. Note,
2656  * the physical port is treated as @vport 0.
2657  **/
2658 void
2659 lpfc_cleanup(struct lpfc_vport *vport)
2660 {
2661         struct lpfc_hba   *phba = vport->phba;
2662         struct lpfc_nodelist *ndlp, *next_ndlp;
2663         int i = 0;
2664
2665         if (phba->link_state > LPFC_LINK_DOWN)
2666                 lpfc_port_link_failure(vport);
2667
2668         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2669                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2670                         ndlp = lpfc_enable_node(vport, ndlp,
2671                                                 NLP_STE_UNUSED_NODE);
2672                         if (!ndlp)
2673                                 continue;
2674                         spin_lock_irq(&phba->ndlp_lock);
2675                         NLP_SET_FREE_REQ(ndlp);
2676                         spin_unlock_irq(&phba->ndlp_lock);
2677                         /* Trigger the release of the ndlp memory */
2678                         lpfc_nlp_put(ndlp);
2679                         continue;
2680                 }
2681                 spin_lock_irq(&phba->ndlp_lock);
2682                 if (NLP_CHK_FREE_REQ(ndlp)) {
2683                         /* The ndlp should not be in memory free mode already */
2684                         spin_unlock_irq(&phba->ndlp_lock);
2685                         continue;
2686                 } else
2687                         /* Indicate request for freeing ndlp memory */
2688                         NLP_SET_FREE_REQ(ndlp);
2689                 spin_unlock_irq(&phba->ndlp_lock);
2690
2691                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2692                     ndlp->nlp_DID == Fabric_DID) {
2693                         /* Just free up ndlp with Fabric_DID for vports */
2694                         lpfc_nlp_put(ndlp);
2695                         continue;
2696                 }
2697
2698                 /* take care of nodes in unused state before the state
2699                  * machine taking action.
2700                  */
2701                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2702                         lpfc_nlp_put(ndlp);
2703                         continue;
2704                 }
2705
2706                 if (ndlp->nlp_type & NLP_FABRIC)
2707                         lpfc_disc_state_machine(vport, ndlp, NULL,
2708                                         NLP_EVT_DEVICE_RECOVERY);
2709
2710                 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) {
2711                         /* Remove the NVME transport reference now and
2712                          * continue to remove the node.
2713                          */
2714                         lpfc_nlp_put(ndlp);
2715                 }
2716
2717                 lpfc_disc_state_machine(vport, ndlp, NULL,
2718                                              NLP_EVT_DEVICE_RM);
2719         }
2720
2721         /* At this point, ALL ndlp's should be gone
2722          * because of the previous NLP_EVT_DEVICE_RM.
2723          * Lets wait for this to happen, if needed.
2724          */
2725         while (!list_empty(&vport->fc_nodes)) {
2726                 if (i++ > 3000) {
2727                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2728                                 "0233 Nodelist not empty\n");
2729                         list_for_each_entry_safe(ndlp, next_ndlp,
2730                                                 &vport->fc_nodes, nlp_listp) {
2731                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2732                                                 LOG_NODE,
2733                                                 "0282 did:x%x ndlp:x%p "
2734                                                 "usgmap:x%x refcnt:%d\n",
2735                                                 ndlp->nlp_DID, (void *)ndlp,
2736                                                 ndlp->nlp_usg_map,
2737                                                 kref_read(&ndlp->kref));
2738                         }
2739                         break;
2740                 }
2741
2742                 /* Wait for any activity on ndlps to settle */
2743                 msleep(10);
2744         }
2745         lpfc_cleanup_vports_rrqs(vport, NULL);
2746 }
2747
2748 /**
2749  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2750  * @vport: pointer to a virtual N_Port data structure.
2751  *
2752  * This routine stops all the timers associated with a @vport. This function
2753  * is invoked before disabling or deleting a @vport. Note that the physical
2754  * port is treated as @vport 0.
2755  **/
2756 void
2757 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2758 {
2759         del_timer_sync(&vport->els_tmofunc);
2760         del_timer_sync(&vport->delayed_disc_tmo);
2761         lpfc_can_disctmo(vport);
2762         return;
2763 }
2764
2765 /**
2766  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2767  * @phba: pointer to lpfc hba data structure.
2768  *
2769  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2770  * caller of this routine should already hold the host lock.
2771  **/
2772 void
2773 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2774 {
2775         /* Clear pending FCF rediscovery wait flag */
2776         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2777
2778         /* Now, try to stop the timer */
2779         del_timer(&phba->fcf.redisc_wait);
2780 }
2781
2782 /**
2783  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2784  * @phba: pointer to lpfc hba data structure.
2785  *
2786  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2787  * checks whether the FCF rediscovery wait timer is pending with the host
2788  * lock held before proceeding with disabling the timer and clearing the
2789  * wait timer pendig flag.
2790  **/
2791 void
2792 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2793 {
2794         spin_lock_irq(&phba->hbalock);
2795         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2796                 /* FCF rediscovery timer already fired or stopped */
2797                 spin_unlock_irq(&phba->hbalock);
2798                 return;
2799         }
2800         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2801         /* Clear failover in progress flags */
2802         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2803         spin_unlock_irq(&phba->hbalock);
2804 }
2805
2806 /**
2807  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2808  * @phba: pointer to lpfc hba data structure.
2809  *
2810  * This routine stops all the timers associated with a HBA. This function is
2811  * invoked before either putting a HBA offline or unloading the driver.
2812  **/
2813 void
2814 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2815 {
2816         lpfc_stop_vport_timers(phba->pport);
2817         del_timer_sync(&phba->sli.mbox_tmo);
2818         del_timer_sync(&phba->fabric_block_timer);
2819         del_timer_sync(&phba->eratt_poll);
2820         del_timer_sync(&phba->hb_tmofunc);
2821         if (phba->sli_rev == LPFC_SLI_REV4) {
2822                 del_timer_sync(&phba->rrq_tmr);
2823                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2824         }
2825         phba->hb_outstanding = 0;
2826
2827         switch (phba->pci_dev_grp) {
2828         case LPFC_PCI_DEV_LP:
2829                 /* Stop any LightPulse device specific driver timers */
2830                 del_timer_sync(&phba->fcp_poll_timer);
2831                 break;
2832         case LPFC_PCI_DEV_OC:
2833                 /* Stop any OneConnect device sepcific driver timers */
2834                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2835                 break;
2836         default:
2837                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2838                                 "0297 Invalid device group (x%x)\n",
2839                                 phba->pci_dev_grp);
2840                 break;
2841         }
2842         return;
2843 }
2844
2845 /**
2846  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2847  * @phba: pointer to lpfc hba data structure.
2848  *
2849  * This routine marks a HBA's management interface as blocked. Once the HBA's
2850  * management interface is marked as blocked, all the user space access to
2851  * the HBA, whether they are from sysfs interface or libdfc interface will
2852  * all be blocked. The HBA is set to block the management interface when the
2853  * driver prepares the HBA interface for online or offline.
2854  **/
2855 static void
2856 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2857 {
2858         unsigned long iflag;
2859         uint8_t actcmd = MBX_HEARTBEAT;
2860         unsigned long timeout;
2861
2862         spin_lock_irqsave(&phba->hbalock, iflag);
2863         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2864         spin_unlock_irqrestore(&phba->hbalock, iflag);
2865         if (mbx_action == LPFC_MBX_NO_WAIT)
2866                 return;
2867         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2868         spin_lock_irqsave(&phba->hbalock, iflag);
2869         if (phba->sli.mbox_active) {
2870                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2871                 /* Determine how long we might wait for the active mailbox
2872                  * command to be gracefully completed by firmware.
2873                  */
2874                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2875                                 phba->sli.mbox_active) * 1000) + jiffies;
2876         }
2877         spin_unlock_irqrestore(&phba->hbalock, iflag);
2878
2879         /* Wait for the outstnading mailbox command to complete */
2880         while (phba->sli.mbox_active) {
2881                 /* Check active mailbox complete status every 2ms */
2882                 msleep(2);
2883                 if (time_after(jiffies, timeout)) {
2884                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2885                                 "2813 Mgmt IO is Blocked %x "
2886                                 "- mbox cmd %x still active\n",
2887                                 phba->sli.sli_flag, actcmd);
2888                         break;
2889                 }
2890         }
2891 }
2892
2893 /**
2894  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2895  * @phba: pointer to lpfc hba data structure.
2896  *
2897  * Allocate RPIs for all active remote nodes. This is needed whenever
2898  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2899  * is to fixup the temporary rpi assignments.
2900  **/
2901 void
2902 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2903 {
2904         struct lpfc_nodelist  *ndlp, *next_ndlp;
2905         struct lpfc_vport **vports;
2906         int i, rpi;
2907         unsigned long flags;
2908
2909         if (phba->sli_rev != LPFC_SLI_REV4)
2910                 return;
2911
2912         vports = lpfc_create_vport_work_array(phba);
2913         if (vports == NULL)
2914                 return;
2915
2916         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2917                 if (vports[i]->load_flag & FC_UNLOADING)
2918                         continue;
2919
2920                 list_for_each_entry_safe(ndlp, next_ndlp,
2921                                          &vports[i]->fc_nodes,
2922                                          nlp_listp) {
2923                         if (!NLP_CHK_NODE_ACT(ndlp))
2924                                 continue;
2925                         rpi = lpfc_sli4_alloc_rpi(phba);
2926                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
2927                                 spin_lock_irqsave(&phba->ndlp_lock, flags);
2928                                 NLP_CLR_NODE_ACT(ndlp);
2929                                 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
2930                                 continue;
2931                         }
2932                         ndlp->nlp_rpi = rpi;
2933                         lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
2934                                          "0009 rpi:%x DID:%x "
2935                                          "flg:%x map:%x %p\n", ndlp->nlp_rpi,
2936                                          ndlp->nlp_DID, ndlp->nlp_flag,
2937                                          ndlp->nlp_usg_map, ndlp);
2938                 }
2939         }
2940         lpfc_destroy_vport_work_array(phba, vports);
2941 }
2942
2943 /**
2944  * lpfc_online - Initialize and bring a HBA online
2945  * @phba: pointer to lpfc hba data structure.
2946  *
2947  * This routine initializes the HBA and brings a HBA online. During this
2948  * process, the management interface is blocked to prevent user space access
2949  * to the HBA interfering with the driver initialization.
2950  *
2951  * Return codes
2952  *   0 - successful
2953  *   1 - failed
2954  **/
2955 int
2956 lpfc_online(struct lpfc_hba *phba)
2957 {
2958         struct lpfc_vport *vport;
2959         struct lpfc_vport **vports;
2960         int i;
2961         bool vpis_cleared = false;
2962
2963         if (!phba)
2964                 return 0;
2965         vport = phba->pport;
2966
2967         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2968                 return 0;
2969
2970         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2971                         "0458 Bring Adapter online\n");
2972
2973         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2974
2975         if (phba->sli_rev == LPFC_SLI_REV4) {
2976                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2977                         lpfc_unblock_mgmt_io(phba);
2978                         return 1;
2979                 }
2980                 spin_lock_irq(&phba->hbalock);
2981                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2982                         vpis_cleared = true;
2983                 spin_unlock_irq(&phba->hbalock);
2984         } else {
2985                 lpfc_sli_queue_init(phba);
2986                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2987                         lpfc_unblock_mgmt_io(phba);
2988                         return 1;
2989                 }
2990         }
2991
2992         vports = lpfc_create_vport_work_array(phba);
2993         if (vports != NULL) {
2994                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2995                         struct Scsi_Host *shost;
2996                         shost = lpfc_shost_from_vport(vports[i]);
2997                         spin_lock_irq(shost->host_lock);
2998                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2999                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3000                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3001                         if (phba->sli_rev == LPFC_SLI_REV4) {
3002                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3003                                 if ((vpis_cleared) &&
3004                                     (vports[i]->port_type !=
3005                                         LPFC_PHYSICAL_PORT))
3006                                         vports[i]->vpi = 0;
3007                         }
3008                         spin_unlock_irq(shost->host_lock);
3009                 }
3010         }
3011         lpfc_destroy_vport_work_array(phba, vports);
3012
3013         lpfc_unblock_mgmt_io(phba);
3014         return 0;
3015 }
3016
3017 /**
3018  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3019  * @phba: pointer to lpfc hba data structure.
3020  *
3021  * This routine marks a HBA's management interface as not blocked. Once the
3022  * HBA's management interface is marked as not blocked, all the user space
3023  * access to the HBA, whether they are from sysfs interface or libdfc
3024  * interface will be allowed. The HBA is set to block the management interface
3025  * when the driver prepares the HBA interface for online or offline and then
3026  * set to unblock the management interface afterwards.
3027  **/
3028 void
3029 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3030 {
3031         unsigned long iflag;
3032
3033         spin_lock_irqsave(&phba->hbalock, iflag);
3034         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3035         spin_unlock_irqrestore(&phba->hbalock, iflag);
3036 }
3037
3038 /**
3039  * lpfc_offline_prep - Prepare a HBA to be brought offline
3040  * @phba: pointer to lpfc hba data structure.
3041  *
3042  * This routine is invoked to prepare a HBA to be brought offline. It performs
3043  * unregistration login to all the nodes on all vports and flushes the mailbox
3044  * queue to make it ready to be brought offline.
3045  **/
3046 void
3047 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3048 {
3049         struct lpfc_vport *vport = phba->pport;
3050         struct lpfc_nodelist  *ndlp, *next_ndlp;
3051         struct lpfc_vport **vports;
3052         struct Scsi_Host *shost;
3053         int i;
3054
3055         if (vport->fc_flag & FC_OFFLINE_MODE)
3056                 return;
3057
3058         lpfc_block_mgmt_io(phba, mbx_action);
3059
3060         lpfc_linkdown(phba);
3061
3062         /* Issue an unreg_login to all nodes on all vports */
3063         vports = lpfc_create_vport_work_array(phba);
3064         if (vports != NULL) {
3065                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3066                         if (vports[i]->load_flag & FC_UNLOADING)
3067                                 continue;
3068                         shost = lpfc_shost_from_vport(vports[i]);
3069                         spin_lock_irq(shost->host_lock);
3070                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3071                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3072                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3073                         spin_unlock_irq(shost->host_lock);
3074
3075                         shost = lpfc_shost_from_vport(vports[i]);
3076                         list_for_each_entry_safe(ndlp, next_ndlp,
3077                                                  &vports[i]->fc_nodes,
3078                                                  nlp_listp) {
3079                                 if (!NLP_CHK_NODE_ACT(ndlp))
3080                                         continue;
3081                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3082                                         continue;
3083                                 if (ndlp->nlp_type & NLP_FABRIC) {
3084                                         lpfc_disc_state_machine(vports[i], ndlp,
3085                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3086                                         lpfc_disc_state_machine(vports[i], ndlp,
3087                                                 NULL, NLP_EVT_DEVICE_RM);
3088                                 }
3089                                 spin_lock_irq(shost->host_lock);
3090                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3091                                 spin_unlock_irq(shost->host_lock);
3092                                 /*
3093                                  * Whenever an SLI4 port goes offline, free the
3094                                  * RPI. Get a new RPI when the adapter port
3095                                  * comes back online.
3096                                  */
3097                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3098                                         lpfc_printf_vlog(ndlp->vport,
3099                                                          KERN_INFO, LOG_NODE,
3100                                                          "0011 lpfc_offline: "
3101                                                          "ndlp:x%p did %x "
3102                                                          "usgmap:x%x rpi:%x\n",
3103                                                          ndlp, ndlp->nlp_DID,
3104                                                          ndlp->nlp_usg_map,
3105                                                          ndlp->nlp_rpi);
3106
3107                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3108                                 }
3109                                 lpfc_unreg_rpi(vports[i], ndlp);
3110                         }
3111                 }
3112         }
3113         lpfc_destroy_vport_work_array(phba, vports);
3114
3115         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3116 }
3117
3118 /**
3119  * lpfc_offline - Bring a HBA offline
3120  * @phba: pointer to lpfc hba data structure.
3121  *
3122  * This routine actually brings a HBA offline. It stops all the timers
3123  * associated with the HBA, brings down the SLI layer, and eventually
3124  * marks the HBA as in offline state for the upper layer protocol.
3125  **/
3126 void
3127 lpfc_offline(struct lpfc_hba *phba)
3128 {
3129         struct Scsi_Host  *shost;
3130         struct lpfc_vport **vports;
3131         int i;
3132
3133         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3134                 return;
3135
3136         /* stop port and all timers associated with this hba */
3137         lpfc_stop_port(phba);
3138         vports = lpfc_create_vport_work_array(phba);
3139         if (vports != NULL)
3140                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3141                         lpfc_stop_vport_timers(vports[i]);
3142         lpfc_destroy_vport_work_array(phba, vports);
3143         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3144                         "0460 Bring Adapter offline\n");
3145         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3146            now.  */
3147         lpfc_sli_hba_down(phba);
3148         spin_lock_irq(&phba->hbalock);
3149         phba->work_ha = 0;
3150         spin_unlock_irq(&phba->hbalock);
3151         vports = lpfc_create_vport_work_array(phba);
3152         if (vports != NULL)
3153                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3154                         shost = lpfc_shost_from_vport(vports[i]);
3155                         spin_lock_irq(shost->host_lock);
3156                         vports[i]->work_port_events = 0;
3157                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3158                         spin_unlock_irq(shost->host_lock);
3159                 }
3160         lpfc_destroy_vport_work_array(phba, vports);
3161 }
3162
3163 /**
3164  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3165  * @phba: pointer to lpfc hba data structure.
3166  *
3167  * This routine is to free all the SCSI buffers and IOCBs from the driver
3168  * list back to kernel. It is called from lpfc_pci_remove_one to free
3169  * the internal resources before the device is removed from the system.
3170  **/
3171 static void
3172 lpfc_scsi_free(struct lpfc_hba *phba)
3173 {
3174         struct lpfc_scsi_buf *sb, *sb_next;
3175
3176         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3177                 return;
3178
3179         spin_lock_irq(&phba->hbalock);
3180
3181         /* Release all the lpfc_scsi_bufs maintained by this host. */
3182
3183         spin_lock(&phba->scsi_buf_list_put_lock);
3184         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3185                                  list) {
3186                 list_del(&sb->list);
3187                 pci_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3188                               sb->dma_handle);
3189                 kfree(sb);
3190                 phba->total_scsi_bufs--;
3191         }
3192         spin_unlock(&phba->scsi_buf_list_put_lock);
3193
3194         spin_lock(&phba->scsi_buf_list_get_lock);
3195         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3196                                  list) {
3197                 list_del(&sb->list);
3198                 pci_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3199                               sb->dma_handle);
3200                 kfree(sb);
3201                 phba->total_scsi_bufs--;
3202         }
3203         spin_unlock(&phba->scsi_buf_list_get_lock);
3204         spin_unlock_irq(&phba->hbalock);
3205 }
3206 /**
3207  * lpfc_nvme_free - Free all the NVME buffers and IOCBs from driver lists
3208  * @phba: pointer to lpfc hba data structure.
3209  *
3210  * This routine is to free all the NVME buffers and IOCBs from the driver
3211  * list back to kernel. It is called from lpfc_pci_remove_one to free
3212  * the internal resources before the device is removed from the system.
3213  **/
3214 static void
3215 lpfc_nvme_free(struct lpfc_hba *phba)
3216 {
3217         struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next;
3218
3219         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3220                 return;
3221
3222         spin_lock_irq(&phba->hbalock);
3223
3224         /* Release all the lpfc_nvme_bufs maintained by this host. */
3225         spin_lock(&phba->nvme_buf_list_put_lock);
3226         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3227                                  &phba->lpfc_nvme_buf_list_put, list) {
3228                 list_del(&lpfc_ncmd->list);
3229                 pci_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3230                               lpfc_ncmd->dma_handle);
3231                 kfree(lpfc_ncmd);
3232                 phba->total_nvme_bufs--;
3233         }
3234         spin_unlock(&phba->nvme_buf_list_put_lock);
3235
3236         spin_lock(&phba->nvme_buf_list_get_lock);
3237         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3238                                  &phba->lpfc_nvme_buf_list_get, list) {
3239                 list_del(&lpfc_ncmd->list);
3240                 pci_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3241                               lpfc_ncmd->dma_handle);
3242                 kfree(lpfc_ncmd);
3243                 phba->total_nvme_bufs--;
3244         }
3245         spin_unlock(&phba->nvme_buf_list_get_lock);
3246         spin_unlock_irq(&phba->hbalock);
3247 }
3248 /**
3249  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3250  * @phba: pointer to lpfc hba data structure.
3251  *
3252  * This routine first calculates the sizes of the current els and allocated
3253  * scsi sgl lists, and then goes through all sgls to updates the physical
3254  * XRIs assigned due to port function reset. During port initialization, the
3255  * current els and allocated scsi sgl lists are 0s.
3256  *
3257  * Return codes
3258  *   0 - successful (for now, it always returns 0)
3259  **/
3260 int
3261 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3262 {
3263         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3264         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3265         LIST_HEAD(els_sgl_list);
3266         int rc;
3267
3268         /*
3269          * update on pci function's els xri-sgl list
3270          */
3271         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3272
3273         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3274                 /* els xri-sgl expanded */
3275                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3276                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3277                                 "3157 ELS xri-sgl count increased from "
3278                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3279                                 els_xri_cnt);
3280                 /* allocate the additional els sgls */
3281                 for (i = 0; i < xri_cnt; i++) {
3282                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3283                                              GFP_KERNEL);
3284                         if (sglq_entry == NULL) {
3285                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3286                                                 "2562 Failure to allocate an "
3287                                                 "ELS sgl entry:%d\n", i);
3288                                 rc = -ENOMEM;
3289                                 goto out_free_mem;
3290                         }
3291                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3292                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3293                                                            &sglq_entry->phys);
3294                         if (sglq_entry->virt == NULL) {
3295                                 kfree(sglq_entry);
3296                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3297                                                 "2563 Failure to allocate an "
3298                                                 "ELS mbuf:%d\n", i);
3299                                 rc = -ENOMEM;
3300                                 goto out_free_mem;
3301                         }
3302                         sglq_entry->sgl = sglq_entry->virt;
3303                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3304                         sglq_entry->state = SGL_FREED;
3305                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3306                 }
3307                 spin_lock_irq(&phba->hbalock);
3308                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3309                 list_splice_init(&els_sgl_list,
3310                                  &phba->sli4_hba.lpfc_els_sgl_list);
3311                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3312                 spin_unlock_irq(&phba->hbalock);
3313         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3314                 /* els xri-sgl shrinked */
3315                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3316                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3317                                 "3158 ELS xri-sgl count decreased from "
3318                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3319                                 els_xri_cnt);
3320                 spin_lock_irq(&phba->hbalock);
3321                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3322                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3323                                  &els_sgl_list);
3324                 /* release extra els sgls from list */
3325                 for (i = 0; i < xri_cnt; i++) {
3326                         list_remove_head(&els_sgl_list,
3327                                          sglq_entry, struct lpfc_sglq, list);
3328                         if (sglq_entry) {
3329                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
3330                                                  sglq_entry->phys);
3331                                 kfree(sglq_entry);
3332                         }
3333                 }
3334                 list_splice_init(&els_sgl_list,
3335                                  &phba->sli4_hba.lpfc_els_sgl_list);
3336                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3337                 spin_unlock_irq(&phba->hbalock);
3338         } else
3339                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3340                                 "3163 ELS xri-sgl count unchanged: %d\n",
3341                                 els_xri_cnt);
3342         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3343
3344         /* update xris to els sgls on the list */
3345         sglq_entry = NULL;
3346         sglq_entry_next = NULL;
3347         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3348                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
3349                 lxri = lpfc_sli4_next_xritag(phba);
3350                 if (lxri == NO_XRI) {
3351                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3352                                         "2400 Failed to allocate xri for "
3353                                         "ELS sgl\n");
3354                         rc = -ENOMEM;
3355                         goto out_free_mem;
3356                 }
3357                 sglq_entry->sli4_lxritag = lxri;
3358                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3359         }
3360         return 0;
3361
3362 out_free_mem:
3363         lpfc_free_els_sgl_list(phba);
3364         return rc;
3365 }
3366
3367 /**
3368  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3369  * @phba: pointer to lpfc hba data structure.
3370  *
3371  * This routine first calculates the sizes of the current els and allocated
3372  * scsi sgl lists, and then goes through all sgls to updates the physical
3373  * XRIs assigned due to port function reset. During port initialization, the
3374  * current els and allocated scsi sgl lists are 0s.
3375  *
3376  * Return codes
3377  *   0 - successful (for now, it always returns 0)
3378  **/
3379 int
3380 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3381 {
3382         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3383         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3384         uint16_t nvmet_xri_cnt;
3385         LIST_HEAD(nvmet_sgl_list);
3386         int rc;
3387
3388         /*
3389          * update on pci function's nvmet xri-sgl list
3390          */
3391         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3392
3393         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3394         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3395
3396         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3397                 /* els xri-sgl expanded */
3398                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3399                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3400                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3401                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3402                 /* allocate the additional nvmet sgls */
3403                 for (i = 0; i < xri_cnt; i++) {
3404                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3405                                              GFP_KERNEL);
3406                         if (sglq_entry == NULL) {
3407                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3408                                                 "6303 Failure to allocate an "
3409                                                 "NVMET sgl entry:%d\n", i);
3410                                 rc = -ENOMEM;
3411                                 goto out_free_mem;
3412                         }
3413                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
3414                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3415                                                            &sglq_entry->phys);
3416                         if (sglq_entry->virt == NULL) {
3417                                 kfree(sglq_entry);
3418                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3419                                                 "6304 Failure to allocate an "
3420                                                 "NVMET buf:%d\n", i);
3421                                 rc = -ENOMEM;
3422                                 goto out_free_mem;
3423                         }
3424                         sglq_entry->sgl = sglq_entry->virt;
3425                         memset(sglq_entry->sgl, 0,
3426                                phba->cfg_sg_dma_buf_size);
3427                         sglq_entry->state = SGL_FREED;
3428                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3429                 }
3430                 spin_lock_irq(&phba->hbalock);
3431                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3432                 list_splice_init(&nvmet_sgl_list,
3433                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3434                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3435                 spin_unlock_irq(&phba->hbalock);
3436         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3437                 /* nvmet xri-sgl shrunk */
3438                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3439                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3440                                 "6305 NVMET xri-sgl count decreased from "
3441                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3442                                 nvmet_xri_cnt);
3443                 spin_lock_irq(&phba->hbalock);
3444                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3445                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3446                                  &nvmet_sgl_list);
3447                 /* release extra nvmet sgls from list */
3448                 for (i = 0; i < xri_cnt; i++) {
3449                         list_remove_head(&nvmet_sgl_list,
3450                                          sglq_entry, struct lpfc_sglq, list);
3451                         if (sglq_entry) {
3452                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3453                                                     sglq_entry->phys);
3454                                 kfree(sglq_entry);
3455                         }
3456                 }
3457                 list_splice_init(&nvmet_sgl_list,
3458                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3459                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3460                 spin_unlock_irq(&phba->hbalock);
3461         } else
3462                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3463                                 "6306 NVMET xri-sgl count unchanged: %d\n",
3464                                 nvmet_xri_cnt);
3465         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3466
3467         /* update xris to nvmet sgls on the list */
3468         sglq_entry = NULL;
3469         sglq_entry_next = NULL;
3470         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3471                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3472                 lxri = lpfc_sli4_next_xritag(phba);
3473                 if (lxri == NO_XRI) {
3474                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3475                                         "6307 Failed to allocate xri for "
3476                                         "NVMET sgl\n");
3477                         rc = -ENOMEM;
3478                         goto out_free_mem;
3479                 }
3480                 sglq_entry->sli4_lxritag = lxri;
3481                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3482         }
3483         return 0;
3484
3485 out_free_mem:
3486         lpfc_free_nvmet_sgl_list(phba);
3487         return rc;
3488 }
3489
3490 /**
3491  * lpfc_sli4_scsi_sgl_update - update xri-sgl sizing and mapping
3492  * @phba: pointer to lpfc hba data structure.
3493  *
3494  * This routine first calculates the sizes of the current els and allocated
3495  * scsi sgl lists, and then goes through all sgls to updates the physical
3496  * XRIs assigned due to port function reset. During port initialization, the
3497  * current els and allocated scsi sgl lists are 0s.
3498  *
3499  * Return codes
3500  *   0 - successful (for now, it always returns 0)
3501  **/
3502 int
3503 lpfc_sli4_scsi_sgl_update(struct lpfc_hba *phba)
3504 {
3505         struct lpfc_scsi_buf *psb, *psb_next;
3506         uint16_t i, lxri, els_xri_cnt, scsi_xri_cnt;
3507         LIST_HEAD(scsi_sgl_list);
3508         int rc;
3509
3510         /*
3511          * update on pci function's els xri-sgl list
3512          */
3513         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3514         phba->total_scsi_bufs = 0;
3515
3516         /*
3517          * update on pci function's allocated scsi xri-sgl list
3518          */
3519         /* maximum number of xris available for scsi buffers */
3520         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3521                                       els_xri_cnt;
3522
3523         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3524                 return 0;
3525
3526         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3527                 phba->sli4_hba.scsi_xri_max =  /* Split them up */
3528                         (phba->sli4_hba.scsi_xri_max *
3529                          phba->cfg_xri_split) / 100;
3530
3531         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3532         spin_lock(&phba->scsi_buf_list_put_lock);
3533         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3534         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3535         spin_unlock(&phba->scsi_buf_list_put_lock);
3536         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3537
3538         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3539                         "6060 Current allocated SCSI xri-sgl count:%d, "
3540                         "maximum  SCSI xri count:%d (split:%d)\n",
3541                         phba->sli4_hba.scsi_xri_cnt,
3542                         phba->sli4_hba.scsi_xri_max, phba->cfg_xri_split);
3543
3544         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3545                 /* max scsi xri shrinked below the allocated scsi buffers */
3546                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3547                                         phba->sli4_hba.scsi_xri_max;
3548                 /* release the extra allocated scsi buffers */
3549                 for (i = 0; i < scsi_xri_cnt; i++) {
3550                         list_remove_head(&scsi_sgl_list, psb,
3551                                          struct lpfc_scsi_buf, list);
3552                         if (psb) {
3553                                 pci_pool_free(phba->lpfc_sg_dma_buf_pool,
3554                                               psb->data, psb->dma_handle);
3555                                 kfree(psb);
3556                         }
3557                 }
3558                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3559                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3560                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3561         }
3562
3563         /* update xris associated to remaining allocated scsi buffers */
3564         psb = NULL;
3565         psb_next = NULL;
3566         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3567                 lxri = lpfc_sli4_next_xritag(phba);
3568                 if (lxri == NO_XRI) {
3569                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3570                                         "2560 Failed to allocate xri for "
3571                                         "scsi buffer\n");
3572                         rc = -ENOMEM;
3573                         goto out_free_mem;
3574                 }
3575                 psb->cur_iocbq.sli4_lxritag = lxri;
3576                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3577         }
3578         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3579         spin_lock(&phba->scsi_buf_list_put_lock);
3580         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3581         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3582         spin_unlock(&phba->scsi_buf_list_put_lock);
3583         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3584         return 0;
3585
3586 out_free_mem:
3587         lpfc_scsi_free(phba);
3588         return rc;
3589 }
3590
3591 static uint64_t
3592 lpfc_get_wwpn(struct lpfc_hba *phba)
3593 {
3594         uint64_t wwn;
3595         int rc;
3596         LPFC_MBOXQ_t *mboxq;
3597         MAILBOX_t *mb;
3598
3599         if (phba->sli_rev < LPFC_SLI_REV4) {
3600                 /* Reset the port first */
3601                 lpfc_sli_brdrestart(phba);
3602                 rc = lpfc_sli_chipset_init(phba);
3603                 if (rc)
3604                         return (uint64_t)-1;
3605         }
3606
3607         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
3608                                                 GFP_KERNEL);
3609         if (!mboxq)
3610                 return (uint64_t)-1;
3611
3612         /* First get WWN of HBA instance */
3613         lpfc_read_nv(phba, mboxq);
3614         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
3615         if (rc != MBX_SUCCESS) {
3616                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3617                                 "6019 Mailbox failed , mbxCmd x%x "
3618                                 "READ_NV, mbxStatus x%x\n",
3619                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
3620                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
3621                 mempool_free(mboxq, phba->mbox_mem_pool);
3622                 return (uint64_t) -1;
3623         }
3624         mb = &mboxq->u.mb;
3625         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
3626         /* wwn is WWPN of HBA instance */
3627         mempool_free(mboxq, phba->mbox_mem_pool);
3628         if (phba->sli_rev == LPFC_SLI_REV4)
3629                 return be64_to_cpu(wwn);
3630         else
3631                 return (((wwn & 0xffffffff00000000) >> 32) |
3632                         ((wwn & 0x00000000ffffffff) << 32));
3633
3634 }
3635
3636 /**
3637  * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping
3638  * @phba: pointer to lpfc hba data structure.
3639  *
3640  * This routine first calculates the sizes of the current els and allocated
3641  * scsi sgl lists, and then goes through all sgls to updates the physical
3642  * XRIs assigned due to port function reset. During port initialization, the
3643  * current els and allocated scsi sgl lists are 0s.
3644  *
3645  * Return codes
3646  *   0 - successful (for now, it always returns 0)
3647  **/
3648 int
3649 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba)
3650 {
3651         struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
3652         uint16_t i, lxri, els_xri_cnt;
3653         uint16_t nvme_xri_cnt, nvme_xri_max;
3654         LIST_HEAD(nvme_sgl_list);
3655         int rc;
3656
3657         phba->total_nvme_bufs = 0;
3658
3659         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3660                 return 0;
3661         /*
3662          * update on pci function's allocated nvme xri-sgl list
3663          */
3664
3665         /* maximum number of xris available for nvme buffers */
3666         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3667         nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3668         phba->sli4_hba.nvme_xri_max = nvme_xri_max;
3669         phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max;
3670
3671         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3672                         "6074 Current allocated NVME xri-sgl count:%d, "
3673                         "maximum  NVME xri count:%d\n",
3674                         phba->sli4_hba.nvme_xri_cnt,
3675                         phba->sli4_hba.nvme_xri_max);
3676
3677         spin_lock_irq(&phba->nvme_buf_list_get_lock);
3678         spin_lock(&phba->nvme_buf_list_put_lock);
3679         list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list);
3680         list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list);
3681         spin_unlock(&phba->nvme_buf_list_put_lock);
3682         spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3683
3684         if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) {
3685                 /* max nvme xri shrunk below the allocated nvme buffers */
3686                 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3687                 nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt -
3688                                         phba->sli4_hba.nvme_xri_max;
3689                 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3690                 /* release the extra allocated nvme buffers */
3691                 for (i = 0; i < nvme_xri_cnt; i++) {
3692                         list_remove_head(&nvme_sgl_list, lpfc_ncmd,
3693                                          struct lpfc_nvme_buf, list);
3694                         if (lpfc_ncmd) {
3695                                 pci_pool_free(phba->lpfc_sg_dma_buf_pool,
3696                                               lpfc_ncmd->data,
3697                                               lpfc_ncmd->dma_handle);
3698                                 kfree(lpfc_ncmd);
3699                         }
3700                 }
3701                 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3702                 phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt;
3703                 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3704         }
3705
3706         /* update xris associated to remaining allocated nvme buffers */
3707         lpfc_ncmd = NULL;
3708         lpfc_ncmd_next = NULL;
3709         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3710                                  &nvme_sgl_list, list) {
3711                 lxri = lpfc_sli4_next_xritag(phba);
3712                 if (lxri == NO_XRI) {
3713                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3714                                         "6075 Failed to allocate xri for "
3715                                         "nvme buffer\n");
3716                         rc = -ENOMEM;
3717                         goto out_free_mem;
3718                 }
3719                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
3720                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3721         }
3722         spin_lock_irq(&phba->nvme_buf_list_get_lock);
3723         spin_lock(&phba->nvme_buf_list_put_lock);
3724         list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get);
3725         INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
3726         spin_unlock(&phba->nvme_buf_list_put_lock);
3727         spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3728         return 0;
3729
3730 out_free_mem:
3731         lpfc_nvme_free(phba);
3732         return rc;
3733 }
3734
3735 /**
3736  * lpfc_create_port - Create an FC port
3737  * @phba: pointer to lpfc hba data structure.
3738  * @instance: a unique integer ID to this FC port.
3739  * @dev: pointer to the device data structure.
3740  *
3741  * This routine creates a FC port for the upper layer protocol. The FC port
3742  * can be created on top of either a physical port or a virtual port provided
3743  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3744  * and associates the FC port created before adding the shost into the SCSI
3745  * layer.
3746  *
3747  * Return codes
3748  *   @vport - pointer to the virtual N_Port data structure.
3749  *   NULL - port create failed.
3750  **/
3751 struct lpfc_vport *
3752 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3753 {
3754         struct lpfc_vport *vport;
3755         struct Scsi_Host  *shost = NULL;
3756         int error = 0;
3757         int i;
3758         uint64_t wwn;
3759         bool use_no_reset_hba = false;
3760
3761         wwn = lpfc_get_wwpn(phba);
3762
3763         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
3764                 if (wwn == lpfc_no_hba_reset[i]) {
3765                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3766                                         "6020 Setting use_no_reset port=%llx\n",
3767                                         wwn);
3768                         use_no_reset_hba = true;
3769                         break;
3770                 }
3771         }
3772
3773         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
3774                 if (dev != &phba->pcidev->dev) {
3775                         shost = scsi_host_alloc(&lpfc_vport_template,
3776                                                 sizeof(struct lpfc_vport));
3777                 } else {
3778                         if (!use_no_reset_hba)
3779                                 shost = scsi_host_alloc(&lpfc_template,
3780                                                 sizeof(struct lpfc_vport));
3781                         else
3782                                 shost = scsi_host_alloc(&lpfc_template_no_hr,
3783                                                 sizeof(struct lpfc_vport));
3784                 }
3785         } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
3786                 shost = scsi_host_alloc(&lpfc_template_nvme,
3787                                         sizeof(struct lpfc_vport));
3788         }
3789         if (!shost)
3790                 goto out;
3791
3792         vport = (struct lpfc_vport *) shost->hostdata;
3793         vport->phba = phba;
3794         vport->load_flag |= FC_LOADING;
3795         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3796         vport->fc_rscn_flush = 0;
3797         lpfc_get_vport_cfgparam(vport);
3798
3799         shost->unique_id = instance;
3800         shost->max_id = LPFC_MAX_TARGET;
3801         shost->max_lun = vport->cfg_max_luns;
3802         shost->this_id = -1;
3803         shost->max_cmd_len = 16;
3804         shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3805         if (phba->sli_rev == LPFC_SLI_REV4) {
3806                 shost->dma_boundary =
3807                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3808                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3809         }
3810
3811         /*
3812          * Set initial can_queue value since 0 is no longer supported and
3813          * scsi_add_host will fail. This will be adjusted later based on the
3814          * max xri value determined in hba setup.
3815          */
3816         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3817         if (dev != &phba->pcidev->dev) {
3818                 shost->transportt = lpfc_vport_transport_template;
3819                 vport->port_type = LPFC_NPIV_PORT;
3820         } else {
3821                 shost->transportt = lpfc_transport_template;
3822                 vport->port_type = LPFC_PHYSICAL_PORT;
3823         }
3824
3825         /* Initialize all internally managed lists. */
3826         INIT_LIST_HEAD(&vport->fc_nodes);
3827         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3828         spin_lock_init(&vport->work_port_lock);
3829
3830         setup_timer(&vport->fc_disctmo, lpfc_disc_timeout,
3831                         (unsigned long)vport);
3832
3833         setup_timer(&vport->els_tmofunc, lpfc_els_timeout,
3834                         (unsigned long)vport);
3835
3836         setup_timer(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo,
3837                         (unsigned long)vport);
3838
3839         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3840         if (error)
3841                 goto out_put_shost;
3842
3843         spin_lock_irq(&phba->hbalock);
3844         list_add_tail(&vport->listentry, &phba->port_list);
3845         spin_unlock_irq(&phba->hbalock);
3846         return vport;
3847
3848 out_put_shost:
3849         scsi_host_put(shost);
3850 out:
3851         return NULL;
3852 }
3853
3854 /**
3855  * destroy_port -  destroy an FC port
3856  * @vport: pointer to an lpfc virtual N_Port data structure.
3857  *
3858  * This routine destroys a FC port from the upper layer protocol. All the
3859  * resources associated with the port are released.
3860  **/
3861 void
3862 destroy_port(struct lpfc_vport *vport)
3863 {
3864         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3865         struct lpfc_hba  *phba = vport->phba;
3866
3867         lpfc_debugfs_terminate(vport);
3868         fc_remove_host(shost);
3869         scsi_remove_host(shost);
3870
3871         spin_lock_irq(&phba->hbalock);
3872         list_del_init(&vport->listentry);
3873         spin_unlock_irq(&phba->hbalock);
3874
3875         lpfc_cleanup(vport);
3876         return;
3877 }
3878
3879 /**
3880  * lpfc_get_instance - Get a unique integer ID
3881  *
3882  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3883  * uses the kernel idr facility to perform the task.
3884  *
3885  * Return codes:
3886  *   instance - a unique integer ID allocated as the new instance.
3887  *   -1 - lpfc get instance failed.
3888  **/
3889 int
3890 lpfc_get_instance(void)
3891 {
3892         int ret;
3893
3894         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3895         return ret < 0 ? -1 : ret;
3896 }
3897
3898 /**
3899  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3900  * @shost: pointer to SCSI host data structure.
3901  * @time: elapsed time of the scan in jiffies.
3902  *
3903  * This routine is called by the SCSI layer with a SCSI host to determine
3904  * whether the scan host is finished.
3905  *
3906  * Note: there is no scan_start function as adapter initialization will have
3907  * asynchronously kicked off the link initialization.
3908  *
3909  * Return codes
3910  *   0 - SCSI host scan is not over yet.
3911  *   1 - SCSI host scan is over.
3912  **/
3913 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3914 {
3915         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3916         struct lpfc_hba   *phba = vport->phba;
3917         int stat = 0;
3918
3919         spin_lock_irq(shost->host_lock);
3920
3921         if (vport->load_flag & FC_UNLOADING) {
3922                 stat = 1;
3923                 goto finished;
3924         }
3925         if (time >= msecs_to_jiffies(30 * 1000)) {
3926                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3927                                 "0461 Scanning longer than 30 "
3928                                 "seconds.  Continuing initialization\n");
3929                 stat = 1;
3930                 goto finished;
3931         }
3932         if (time >= msecs_to_jiffies(15 * 1000) &&
3933             phba->link_state <= LPFC_LINK_DOWN) {
3934                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3935                                 "0465 Link down longer than 15 "
3936                                 "seconds.  Continuing initialization\n");
3937                 stat = 1;
3938                 goto finished;
3939         }
3940
3941         if (vport->port_state != LPFC_VPORT_READY)
3942                 goto finished;
3943         if (vport->num_disc_nodes || vport->fc_prli_sent)
3944                 goto finished;
3945         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3946                 goto finished;
3947         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3948                 goto finished;
3949
3950         stat = 1;
3951
3952 finished:
3953         spin_unlock_irq(shost->host_lock);
3954         return stat;
3955 }
3956
3957 /**
3958  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3959  * @shost: pointer to SCSI host data structure.
3960  *
3961  * This routine initializes a given SCSI host attributes on a FC port. The
3962  * SCSI host can be either on top of a physical port or a virtual port.
3963  **/
3964 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3965 {
3966         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3967         struct lpfc_hba   *phba = vport->phba;
3968         /*
3969          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3970          */
3971
3972         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3973         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3974         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3975
3976         memset(fc_host_supported_fc4s(shost), 0,
3977                sizeof(fc_host_supported_fc4s(shost)));
3978         fc_host_supported_fc4s(shost)[2] = 1;
3979         fc_host_supported_fc4s(shost)[7] = 1;
3980
3981         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3982                                  sizeof fc_host_symbolic_name(shost));
3983
3984         fc_host_supported_speeds(shost) = 0;
3985         if (phba->lmt & LMT_32Gb)
3986                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
3987         if (phba->lmt & LMT_16Gb)
3988                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3989         if (phba->lmt & LMT_10Gb)
3990                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3991         if (phba->lmt & LMT_8Gb)
3992                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3993         if (phba->lmt & LMT_4Gb)
3994                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3995         if (phba->lmt & LMT_2Gb)
3996                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3997         if (phba->lmt & LMT_1Gb)
3998                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3999
4000         fc_host_maxframe_size(shost) =
4001                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4002                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4003
4004         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4005
4006         /* This value is also unchanging */
4007         memset(fc_host_active_fc4s(shost), 0,
4008                sizeof(fc_host_active_fc4s(shost)));
4009         fc_host_active_fc4s(shost)[2] = 1;
4010         fc_host_active_fc4s(shost)[7] = 1;
4011
4012         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4013         spin_lock_irq(shost->host_lock);
4014         vport->load_flag &= ~FC_LOADING;
4015         spin_unlock_irq(shost->host_lock);
4016 }
4017
4018 /**
4019  * lpfc_stop_port_s3 - Stop SLI3 device port
4020  * @phba: pointer to lpfc hba data structure.
4021  *
4022  * This routine is invoked to stop an SLI3 device port, it stops the device
4023  * from generating interrupts and stops the device driver's timers for the
4024  * device.
4025  **/
4026 static void
4027 lpfc_stop_port_s3(struct lpfc_hba *phba)
4028 {
4029         /* Clear all interrupt enable conditions */
4030         writel(0, phba->HCregaddr);
4031         readl(phba->HCregaddr); /* flush */
4032         /* Clear all pending interrupts */
4033         writel(0xffffffff, phba->HAregaddr);
4034         readl(phba->HAregaddr); /* flush */
4035
4036         /* Reset some HBA SLI setup states */
4037         lpfc_stop_hba_timers(phba);
4038         phba->pport->work_port_events = 0;
4039 }
4040
4041 /**
4042  * lpfc_stop_port_s4 - Stop SLI4 device port
4043  * @phba: pointer to lpfc hba data structure.
4044  *
4045  * This routine is invoked to stop an SLI4 device port, it stops the device
4046  * from generating interrupts and stops the device driver's timers for the
4047  * device.
4048  **/
4049 static void
4050 lpfc_stop_port_s4(struct lpfc_hba *phba)
4051 {
4052         /* Reset some HBA SLI4 setup states */
4053         lpfc_stop_hba_timers(phba);
4054         phba->pport->work_port_events = 0;
4055         phba->sli4_hba.intr_enable = 0;
4056 }
4057
4058 /**
4059  * lpfc_stop_port - Wrapper function for stopping hba port
4060  * @phba: Pointer to HBA context object.
4061  *
4062  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4063  * the API jump table function pointer from the lpfc_hba struct.
4064  **/
4065 void
4066 lpfc_stop_port(struct lpfc_hba *phba)
4067 {
4068         phba->lpfc_stop_port(phba);
4069 }
4070
4071 /**
4072  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4073  * @phba: Pointer to hba for which this call is being executed.
4074  *
4075  * This routine starts the timer waiting for the FCF rediscovery to complete.
4076  **/
4077 void
4078 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4079 {
4080         unsigned long fcf_redisc_wait_tmo =
4081                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4082         /* Start fcf rediscovery wait period timer */
4083         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4084         spin_lock_irq(&phba->hbalock);
4085         /* Allow action to new fcf asynchronous event */
4086         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4087         /* Mark the FCF rediscovery pending state */
4088         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4089         spin_unlock_irq(&phba->hbalock);
4090 }
4091
4092 /**
4093  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4094  * @ptr: Map to lpfc_hba data structure pointer.
4095  *
4096  * This routine is invoked when waiting for FCF table rediscover has been
4097  * timed out. If new FCF record(s) has (have) been discovered during the
4098  * wait period, a new FCF event shall be added to the FCOE async event
4099  * list, and then worker thread shall be waked up for processing from the
4100  * worker thread context.
4101  **/
4102 static void
4103 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
4104 {
4105         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
4106
4107         /* Don't send FCF rediscovery event if timer cancelled */
4108         spin_lock_irq(&phba->hbalock);
4109         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4110                 spin_unlock_irq(&phba->hbalock);
4111                 return;
4112         }
4113         /* Clear FCF rediscovery timer pending flag */
4114         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4115         /* FCF rediscovery event to worker thread */
4116         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4117         spin_unlock_irq(&phba->hbalock);
4118         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4119                         "2776 FCF rediscover quiescent timer expired\n");
4120         /* wake up worker thread */
4121         lpfc_worker_wake_up(phba);
4122 }
4123
4124 /**
4125  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4126  * @phba: pointer to lpfc hba data structure.
4127  * @acqe_link: pointer to the async link completion queue entry.
4128  *
4129  * This routine is to parse the SLI4 link-attention link fault code and
4130  * translate it into the base driver's read link attention mailbox command
4131  * status.
4132  *
4133  * Return: Link-attention status in terms of base driver's coding.
4134  **/
4135 static uint16_t
4136 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4137                            struct lpfc_acqe_link *acqe_link)
4138 {
4139         uint16_t latt_fault;
4140
4141         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4142         case LPFC_ASYNC_LINK_FAULT_NONE:
4143         case LPFC_ASYNC_LINK_FAULT_LOCAL:
4144         case LPFC_ASYNC_LINK_FAULT_REMOTE:
4145                 latt_fault = 0;
4146                 break;
4147         default:
4148                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4149                                 "0398 Invalid link fault code: x%x\n",
4150                                 bf_get(lpfc_acqe_link_fault, acqe_link));
4151                 latt_fault = MBXERR_ERROR;
4152                 break;
4153         }
4154         return latt_fault;
4155 }
4156
4157 /**
4158  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4159  * @phba: pointer to lpfc hba data structure.
4160  * @acqe_link: pointer to the async link completion queue entry.
4161  *
4162  * This routine is to parse the SLI4 link attention type and translate it
4163  * into the base driver's link attention type coding.
4164  *
4165  * Return: Link attention type in terms of base driver's coding.
4166  **/
4167 static uint8_t
4168 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4169                           struct lpfc_acqe_link *acqe_link)
4170 {
4171         uint8_t att_type;
4172
4173         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4174         case LPFC_ASYNC_LINK_STATUS_DOWN:
4175         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4176                 att_type = LPFC_ATT_LINK_DOWN;
4177                 break;
4178         case LPFC_ASYNC_LINK_STATUS_UP:
4179                 /* Ignore physical link up events - wait for logical link up */
4180                 att_type = LPFC_ATT_RESERVED;
4181                 break;
4182         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4183                 att_type = LPFC_ATT_LINK_UP;
4184                 break;
4185         default:
4186                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4187                                 "0399 Invalid link attention type: x%x\n",
4188                                 bf_get(lpfc_acqe_link_status, acqe_link));
4189                 att_type = LPFC_ATT_RESERVED;
4190                 break;
4191         }
4192         return att_type;
4193 }
4194
4195 /**
4196  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4197  * @phba: pointer to lpfc hba data structure.
4198  *
4199  * This routine is to get an SLI3 FC port's link speed in Mbps.
4200  *
4201  * Return: link speed in terms of Mbps.
4202  **/
4203 uint32_t
4204 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4205 {
4206         uint32_t link_speed;
4207
4208         if (!lpfc_is_link_up(phba))
4209                 return 0;
4210
4211         if (phba->sli_rev <= LPFC_SLI_REV3) {
4212                 switch (phba->fc_linkspeed) {
4213                 case LPFC_LINK_SPEED_1GHZ:
4214                         link_speed = 1000;
4215                         break;
4216                 case LPFC_LINK_SPEED_2GHZ:
4217                         link_speed = 2000;
4218                         break;
4219                 case LPFC_LINK_SPEED_4GHZ:
4220                         link_speed = 4000;
4221                         break;
4222                 case LPFC_LINK_SPEED_8GHZ:
4223                         link_speed = 8000;
4224                         break;
4225                 case LPFC_LINK_SPEED_10GHZ:
4226                         link_speed = 10000;
4227                         break;
4228                 case LPFC_LINK_SPEED_16GHZ:
4229                         link_speed = 16000;
4230                         break;
4231                 default:
4232                         link_speed = 0;
4233                 }
4234         } else {
4235                 if (phba->sli4_hba.link_state.logical_speed)
4236                         link_speed =
4237                               phba->sli4_hba.link_state.logical_speed;
4238                 else
4239                         link_speed = phba->sli4_hba.link_state.speed;
4240         }
4241         return link_speed;
4242 }
4243
4244 /**
4245  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4246  * @phba: pointer to lpfc hba data structure.
4247  * @evt_code: asynchronous event code.
4248  * @speed_code: asynchronous event link speed code.
4249  *
4250  * This routine is to parse the giving SLI4 async event link speed code into
4251  * value of Mbps for the link speed.
4252  *
4253  * Return: link speed in terms of Mbps.
4254  **/
4255 static uint32_t
4256 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4257                            uint8_t speed_code)
4258 {
4259         uint32_t port_speed;
4260
4261         switch (evt_code) {
4262         case LPFC_TRAILER_CODE_LINK:
4263                 switch (speed_code) {
4264                 case LPFC_ASYNC_LINK_SPEED_ZERO:
4265                         port_speed = 0;
4266                         break;
4267                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4268                         port_speed = 10;
4269                         break;
4270                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4271                         port_speed = 100;
4272                         break;
4273                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4274                         port_speed = 1000;
4275                         break;
4276                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4277                         port_speed = 10000;
4278                         break;
4279                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4280                         port_speed = 20000;
4281                         break;
4282                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4283                         port_speed = 25000;
4284                         break;
4285                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4286                         port_speed = 40000;
4287                         break;
4288                 default:
4289                         port_speed = 0;
4290                 }
4291                 break;
4292         case LPFC_TRAILER_CODE_FC:
4293                 switch (speed_code) {
4294                 case LPFC_FC_LA_SPEED_UNKNOWN:
4295                         port_speed = 0;
4296                         break;
4297                 case LPFC_FC_LA_SPEED_1G:
4298                         port_speed = 1000;
4299                         break;
4300                 case LPFC_FC_LA_SPEED_2G:
4301                         port_speed = 2000;
4302                         break;
4303                 case LPFC_FC_LA_SPEED_4G:
4304                         port_speed = 4000;
4305                         break;
4306                 case LPFC_FC_LA_SPEED_8G:
4307                         port_speed = 8000;
4308                         break;
4309                 case LPFC_FC_LA_SPEED_10G:
4310                         port_speed = 10000;
4311                         break;
4312                 case LPFC_FC_LA_SPEED_16G:
4313                         port_speed = 16000;
4314                         break;
4315                 case LPFC_FC_LA_SPEED_32G:
4316                         port_speed = 32000;
4317                         break;
4318                 default:
4319                         port_speed = 0;
4320                 }
4321                 break;
4322         default:
4323                 port_speed = 0;
4324         }
4325         return port_speed;
4326 }
4327
4328 /**
4329  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4330  * @phba: pointer to lpfc hba data structure.
4331  * @acqe_link: pointer to the async link completion queue entry.
4332  *
4333  * This routine is to handle the SLI4 asynchronous FCoE link event.
4334  **/
4335 static void
4336 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4337                          struct lpfc_acqe_link *acqe_link)
4338 {
4339         struct lpfc_dmabuf *mp;
4340         LPFC_MBOXQ_t *pmb;
4341         MAILBOX_t *mb;
4342         struct lpfc_mbx_read_top *la;
4343         uint8_t att_type;
4344         int rc;
4345
4346         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4347         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4348                 return;
4349         phba->fcoe_eventtag = acqe_link->event_tag;
4350         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4351         if (!pmb) {
4352                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4353                                 "0395 The mboxq allocation failed\n");
4354                 return;
4355         }
4356         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4357         if (!mp) {
4358                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4359                                 "0396 The lpfc_dmabuf allocation failed\n");
4360                 goto out_free_pmb;
4361         }
4362         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4363         if (!mp->virt) {
4364                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4365                                 "0397 The mbuf allocation failed\n");
4366                 goto out_free_dmabuf;
4367         }
4368
4369         /* Cleanup any outstanding ELS commands */
4370         lpfc_els_flush_all_cmd(phba);
4371
4372         /* Block ELS IOCBs until we have done process link event */
4373         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4374
4375         /* Update link event statistics */
4376         phba->sli.slistat.link_event++;
4377
4378         /* Create lpfc_handle_latt mailbox command from link ACQE */
4379         lpfc_read_topology(phba, pmb, mp);
4380         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4381         pmb->vport = phba->pport;
4382
4383         /* Keep the link status for extra SLI4 state machine reference */
4384         phba->sli4_hba.link_state.speed =
4385                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4386                                 bf_get(lpfc_acqe_link_speed, acqe_link));
4387         phba->sli4_hba.link_state.duplex =
4388                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
4389         phba->sli4_hba.link_state.status =
4390                                 bf_get(lpfc_acqe_link_status, acqe_link);
4391         phba->sli4_hba.link_state.type =
4392                                 bf_get(lpfc_acqe_link_type, acqe_link);
4393         phba->sli4_hba.link_state.number =
4394                                 bf_get(lpfc_acqe_link_number, acqe_link);
4395         phba->sli4_hba.link_state.fault =
4396                                 bf_get(lpfc_acqe_link_fault, acqe_link);
4397         phba->sli4_hba.link_state.logical_speed =
4398                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4399
4400         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4401                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
4402                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4403                         "Logical speed:%dMbps Fault:%d\n",
4404                         phba->sli4_hba.link_state.speed,
4405                         phba->sli4_hba.link_state.topology,
4406                         phba->sli4_hba.link_state.status,
4407                         phba->sli4_hba.link_state.type,
4408                         phba->sli4_hba.link_state.number,
4409                         phba->sli4_hba.link_state.logical_speed,
4410                         phba->sli4_hba.link_state.fault);
4411         /*
4412          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4413          * topology info. Note: Optional for non FC-AL ports.
4414          */
4415         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4416                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4417                 if (rc == MBX_NOT_FINISHED)
4418                         goto out_free_dmabuf;
4419                 return;
4420         }
4421         /*
4422          * For FCoE Mode: fill in all the topology information we need and call
4423          * the READ_TOPOLOGY completion routine to continue without actually
4424          * sending the READ_TOPOLOGY mailbox command to the port.
4425          */
4426         /* Parse and translate status field */
4427         mb = &pmb->u.mb;
4428         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
4429
4430         /* Parse and translate link attention fields */
4431         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4432         la->eventTag = acqe_link->event_tag;
4433         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4434         bf_set(lpfc_mbx_read_top_link_spd, la,
4435                (bf_get(lpfc_acqe_link_speed, acqe_link)));
4436
4437         /* Fake the the following irrelvant fields */
4438         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4439         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4440         bf_set(lpfc_mbx_read_top_il, la, 0);
4441         bf_set(lpfc_mbx_read_top_pb, la, 0);
4442         bf_set(lpfc_mbx_read_top_fa, la, 0);
4443         bf_set(lpfc_mbx_read_top_mm, la, 0);
4444
4445         /* Invoke the lpfc_handle_latt mailbox command callback function */
4446         lpfc_mbx_cmpl_read_topology(phba, pmb);
4447
4448         return;
4449
4450 out_free_dmabuf:
4451         kfree(mp);
4452 out_free_pmb:
4453         mempool_free(pmb, phba->mbox_mem_pool);
4454 }
4455
4456 /**
4457  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
4458  * @phba: pointer to lpfc hba data structure.
4459  * @acqe_fc: pointer to the async fc completion queue entry.
4460  *
4461  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4462  * that the event was received and then issue a read_topology mailbox command so
4463  * that the rest of the driver will treat it the same as SLI3.
4464  **/
4465 static void
4466 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4467 {
4468         struct lpfc_dmabuf *mp;
4469         LPFC_MBOXQ_t *pmb;
4470         MAILBOX_t *mb;
4471         struct lpfc_mbx_read_top *la;
4472         int rc;
4473
4474         if (bf_get(lpfc_trailer_type, acqe_fc) !=
4475             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4476                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4477                                 "2895 Non FC link Event detected.(%d)\n",
4478                                 bf_get(lpfc_trailer_type, acqe_fc));
4479                 return;
4480         }
4481         /* Keep the link status for extra SLI4 state machine reference */
4482         phba->sli4_hba.link_state.speed =
4483                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4484                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4485         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4486         phba->sli4_hba.link_state.topology =
4487                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4488         phba->sli4_hba.link_state.status =
4489                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4490         phba->sli4_hba.link_state.type =
4491                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4492         phba->sli4_hba.link_state.number =
4493                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4494         phba->sli4_hba.link_state.fault =
4495                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
4496         phba->sli4_hba.link_state.logical_speed =
4497                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4498         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4499                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4500                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4501                         "%dMbps Fault:%d\n",
4502                         phba->sli4_hba.link_state.speed,
4503                         phba->sli4_hba.link_state.topology,
4504                         phba->sli4_hba.link_state.status,
4505                         phba->sli4_hba.link_state.type,
4506                         phba->sli4_hba.link_state.number,
4507                         phba->sli4_hba.link_state.logical_speed,
4508                         phba->sli4_hba.link_state.fault);
4509         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4510         if (!pmb) {
4511                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4512                                 "2897 The mboxq allocation failed\n");
4513                 return;
4514         }
4515         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4516         if (!mp) {
4517                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4518                                 "2898 The lpfc_dmabuf allocation failed\n");
4519                 goto out_free_pmb;
4520         }
4521         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4522         if (!mp->virt) {
4523                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4524                                 "2899 The mbuf allocation failed\n");
4525                 goto out_free_dmabuf;
4526         }
4527
4528         /* Cleanup any outstanding ELS commands */
4529         lpfc_els_flush_all_cmd(phba);
4530
4531         /* Block ELS IOCBs until we have done process link event */
4532         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4533
4534         /* Update link event statistics */
4535         phba->sli.slistat.link_event++;
4536
4537         /* Create lpfc_handle_latt mailbox command from link ACQE */
4538         lpfc_read_topology(phba, pmb, mp);
4539         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4540         pmb->vport = phba->pport;
4541
4542         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
4543                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
4544
4545                 switch (phba->sli4_hba.link_state.status) {
4546                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
4547                         phba->link_flag |= LS_MDS_LINK_DOWN;
4548                         break;
4549                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
4550                         phba->link_flag |= LS_MDS_LOOPBACK;
4551                         break;
4552                 default:
4553                         break;
4554                 }
4555
4556                 /* Parse and translate status field */
4557                 mb = &pmb->u.mb;
4558                 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba,
4559                                                            (void *)acqe_fc);
4560
4561                 /* Parse and translate link attention fields */
4562                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
4563                 la->eventTag = acqe_fc->event_tag;
4564
4565                 if (phba->sli4_hba.link_state.status ==
4566                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
4567                         bf_set(lpfc_mbx_read_top_att_type, la,
4568                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
4569                 } else {
4570                         bf_set(lpfc_mbx_read_top_att_type, la,
4571                                LPFC_FC_LA_TYPE_LINK_DOWN);
4572                 }
4573                 /* Invoke the mailbox command callback function */
4574                 lpfc_mbx_cmpl_read_topology(phba, pmb);
4575
4576                 return;
4577         }
4578
4579         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4580         if (rc == MBX_NOT_FINISHED)
4581                 goto out_free_dmabuf;
4582         return;
4583
4584 out_free_dmabuf:
4585         kfree(mp);
4586 out_free_pmb:
4587         mempool_free(pmb, phba->mbox_mem_pool);
4588 }
4589
4590 /**
4591  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4592  * @phba: pointer to lpfc hba data structure.
4593  * @acqe_fc: pointer to the async SLI completion queue entry.
4594  *
4595  * This routine is to handle the SLI4 asynchronous SLI events.
4596  **/
4597 static void
4598 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4599 {
4600         char port_name;
4601         char message[128];
4602         uint8_t status;
4603         uint8_t evt_type;
4604         uint8_t operational = 0;
4605         struct temp_event temp_event_data;
4606         struct lpfc_acqe_misconfigured_event *misconfigured;
4607         struct Scsi_Host  *shost;
4608
4609         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4610
4611         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4612                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4613                         "x%08x SLI Event Type:%d\n",
4614                         acqe_sli->event_data1, acqe_sli->event_data2,
4615                         evt_type);
4616
4617         port_name = phba->Port[0];
4618         if (port_name == 0x00)
4619                 port_name = '?'; /* get port name is empty */
4620
4621         switch (evt_type) {
4622         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4623                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4624                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4625                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4626
4627                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4628                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4629                                 acqe_sli->event_data1, port_name);
4630
4631                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
4632                 shost = lpfc_shost_from_vport(phba->pport);
4633                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4634                                           sizeof(temp_event_data),
4635                                           (char *)&temp_event_data,
4636                                           SCSI_NL_VID_TYPE_PCI
4637                                           | PCI_VENDOR_ID_EMULEX);
4638                 break;
4639         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4640                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4641                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4642                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4643
4644                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4645                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4646                                 acqe_sli->event_data1, port_name);
4647
4648                 shost = lpfc_shost_from_vport(phba->pport);
4649                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4650                                           sizeof(temp_event_data),
4651                                           (char *)&temp_event_data,
4652                                           SCSI_NL_VID_TYPE_PCI
4653                                           | PCI_VENDOR_ID_EMULEX);
4654                 break;
4655         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4656                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4657                                         &acqe_sli->event_data1;
4658
4659                 /* fetch the status for this port */
4660                 switch (phba->sli4_hba.lnk_info.lnk_no) {
4661                 case LPFC_LINK_NUMBER_0:
4662                         status = bf_get(lpfc_sli_misconfigured_port0_state,
4663                                         &misconfigured->theEvent);
4664                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
4665                                         &misconfigured->theEvent);
4666                         break;
4667                 case LPFC_LINK_NUMBER_1:
4668                         status = bf_get(lpfc_sli_misconfigured_port1_state,
4669                                         &misconfigured->theEvent);
4670                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
4671                                         &misconfigured->theEvent);
4672                         break;
4673                 case LPFC_LINK_NUMBER_2:
4674                         status = bf_get(lpfc_sli_misconfigured_port2_state,
4675                                         &misconfigured->theEvent);
4676                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
4677                                         &misconfigured->theEvent);
4678                         break;
4679                 case LPFC_LINK_NUMBER_3:
4680                         status = bf_get(lpfc_sli_misconfigured_port3_state,
4681                                         &misconfigured->theEvent);
4682                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
4683                                         &misconfigured->theEvent);
4684                         break;
4685                 default:
4686                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4687                                         "3296 "
4688                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
4689                                         "event: Invalid link %d",
4690                                         phba->sli4_hba.lnk_info.lnk_no);
4691                         return;
4692                 }
4693
4694                 /* Skip if optic state unchanged */
4695                 if (phba->sli4_hba.lnk_info.optic_state == status)
4696                         return;
4697
4698                 switch (status) {
4699                 case LPFC_SLI_EVENT_STATUS_VALID:
4700                         sprintf(message, "Physical Link is functional");
4701                         break;
4702                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4703                         sprintf(message, "Optics faulted/incorrectly "
4704                                 "installed/not installed - Reseat optics, "
4705                                 "if issue not resolved, replace.");
4706                         break;
4707                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4708                         sprintf(message,
4709                                 "Optics of two types installed - Remove one "
4710                                 "optic or install matching pair of optics.");
4711                         break;
4712                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4713                         sprintf(message, "Incompatible optics - Replace with "
4714                                 "compatible optics for card to function.");
4715                         break;
4716                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
4717                         sprintf(message, "Unqualified optics - Replace with "
4718                                 "Avago optics for Warranty and Technical "
4719                                 "Support - Link is%s operational",
4720                                 (operational) ? " not" : "");
4721                         break;
4722                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
4723                         sprintf(message, "Uncertified optics - Replace with "
4724                                 "Avago-certified optics to enable link "
4725                                 "operation - Link is%s operational",
4726                                 (operational) ? " not" : "");
4727                         break;
4728                 default:
4729                         /* firmware is reporting a status we don't know about */
4730                         sprintf(message, "Unknown event status x%02x", status);
4731                         break;
4732                 }
4733                 phba->sli4_hba.lnk_info.optic_state = status;
4734                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4735                                 "3176 Port Name %c %s\n", port_name, message);
4736                 break;
4737         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4738                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4739                                 "3192 Remote DPort Test Initiated - "
4740                                 "Event Data1:x%08x Event Data2: x%08x\n",
4741                                 acqe_sli->event_data1, acqe_sli->event_data2);
4742                 break;
4743         default:
4744                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4745                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4746                                 "x%08x SLI Event Type:%d\n",
4747                                 acqe_sli->event_data1, acqe_sli->event_data2,
4748                                 evt_type);
4749                 break;
4750         }
4751 }
4752
4753 /**
4754  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4755  * @vport: pointer to vport data structure.
4756  *
4757  * This routine is to perform Clear Virtual Link (CVL) on a vport in
4758  * response to a CVL event.
4759  *
4760  * Return the pointer to the ndlp with the vport if successful, otherwise
4761  * return NULL.
4762  **/
4763 static struct lpfc_nodelist *
4764 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4765 {
4766         struct lpfc_nodelist *ndlp;
4767         struct Scsi_Host *shost;
4768         struct lpfc_hba *phba;
4769
4770         if (!vport)
4771                 return NULL;
4772         phba = vport->phba;
4773         if (!phba)
4774                 return NULL;
4775         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4776         if (!ndlp) {
4777                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4778                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
4779                 if (!ndlp)
4780                         return 0;
4781                 /* Set the node type */
4782                 ndlp->nlp_type |= NLP_FABRIC;
4783                 /* Put ndlp onto node list */
4784                 lpfc_enqueue_node(vport, ndlp);
4785         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4786                 /* re-setup ndlp without removing from node list */
4787                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4788                 if (!ndlp)
4789                         return 0;
4790         }
4791         if ((phba->pport->port_state < LPFC_FLOGI) &&
4792                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4793                 return NULL;
4794         /* If virtual link is not yet instantiated ignore CVL */
4795         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4796                 && (vport->port_state != LPFC_VPORT_FAILED))
4797                 return NULL;
4798         shost = lpfc_shost_from_vport(vport);
4799         if (!shost)
4800                 return NULL;
4801         lpfc_linkdown_port(vport);
4802         lpfc_cleanup_pending_mbox(vport);
4803         spin_lock_irq(shost->host_lock);
4804         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4805         spin_unlock_irq(shost->host_lock);
4806
4807         return ndlp;
4808 }
4809
4810 /**
4811  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4812  * @vport: pointer to lpfc hba data structure.
4813  *
4814  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4815  * response to a FCF dead event.
4816  **/
4817 static void
4818 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4819 {
4820         struct lpfc_vport **vports;
4821         int i;
4822
4823         vports = lpfc_create_vport_work_array(phba);
4824         if (vports)
4825                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4826                         lpfc_sli4_perform_vport_cvl(vports[i]);
4827         lpfc_destroy_vport_work_array(phba, vports);
4828 }
4829
4830 /**
4831  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4832  * @phba: pointer to lpfc hba data structure.
4833  * @acqe_link: pointer to the async fcoe completion queue entry.
4834  *
4835  * This routine is to handle the SLI4 asynchronous fcoe event.
4836  **/
4837 static void
4838 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4839                         struct lpfc_acqe_fip *acqe_fip)
4840 {
4841         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4842         int rc;
4843         struct lpfc_vport *vport;
4844         struct lpfc_nodelist *ndlp;
4845         struct Scsi_Host  *shost;
4846         int active_vlink_present;
4847         struct lpfc_vport **vports;
4848         int i;
4849
4850         phba->fc_eventTag = acqe_fip->event_tag;
4851         phba->fcoe_eventtag = acqe_fip->event_tag;
4852         switch (event_type) {
4853         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4854         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4855                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4856                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4857                                         LOG_DISCOVERY,
4858                                         "2546 New FCF event, evt_tag:x%x, "
4859                                         "index:x%x\n",
4860                                         acqe_fip->event_tag,
4861                                         acqe_fip->index);
4862                 else
4863                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4864                                         LOG_DISCOVERY,
4865                                         "2788 FCF param modified event, "
4866                                         "evt_tag:x%x, index:x%x\n",
4867                                         acqe_fip->event_tag,
4868                                         acqe_fip->index);
4869                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4870                         /*
4871                          * During period of FCF discovery, read the FCF
4872                          * table record indexed by the event to update
4873                          * FCF roundrobin failover eligible FCF bmask.
4874                          */
4875                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4876                                         LOG_DISCOVERY,
4877                                         "2779 Read FCF (x%x) for updating "
4878                                         "roundrobin FCF failover bmask\n",
4879                                         acqe_fip->index);
4880                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4881                 }
4882
4883                 /* If the FCF discovery is in progress, do nothing. */
4884                 spin_lock_irq(&phba->hbalock);
4885                 if (phba->hba_flag & FCF_TS_INPROG) {
4886                         spin_unlock_irq(&phba->hbalock);
4887                         break;
4888                 }
4889                 /* If fast FCF failover rescan event is pending, do nothing */
4890                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4891                         spin_unlock_irq(&phba->hbalock);
4892                         break;
4893                 }
4894
4895                 /* If the FCF has been in discovered state, do nothing. */
4896                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4897                         spin_unlock_irq(&phba->hbalock);
4898                         break;
4899                 }
4900                 spin_unlock_irq(&phba->hbalock);
4901
4902                 /* Otherwise, scan the entire FCF table and re-discover SAN */
4903                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4904                                 "2770 Start FCF table scan per async FCF "
4905                                 "event, evt_tag:x%x, index:x%x\n",
4906                                 acqe_fip->event_tag, acqe_fip->index);
4907                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4908                                                      LPFC_FCOE_FCF_GET_FIRST);
4909                 if (rc)
4910                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4911                                         "2547 Issue FCF scan read FCF mailbox "
4912                                         "command failed (x%x)\n", rc);
4913                 break;
4914
4915         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4916                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4917                         "2548 FCF Table full count 0x%x tag 0x%x\n",
4918                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4919                         acqe_fip->event_tag);
4920                 break;
4921
4922         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4923                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4924                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4925                         "2549 FCF (x%x) disconnected from network, "
4926                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4927                 /*
4928                  * If we are in the middle of FCF failover process, clear
4929                  * the corresponding FCF bit in the roundrobin bitmap.
4930                  */
4931                 spin_lock_irq(&phba->hbalock);
4932                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
4933                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
4934                         spin_unlock_irq(&phba->hbalock);
4935                         /* Update FLOGI FCF failover eligible FCF bmask */
4936                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4937                         break;
4938                 }
4939                 spin_unlock_irq(&phba->hbalock);
4940
4941                 /* If the event is not for currently used fcf do nothing */
4942                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4943                         break;
4944
4945                 /*
4946                  * Otherwise, request the port to rediscover the entire FCF
4947                  * table for a fast recovery from case that the current FCF
4948                  * is no longer valid as we are not in the middle of FCF
4949                  * failover process already.
4950                  */
4951                 spin_lock_irq(&phba->hbalock);
4952                 /* Mark the fast failover process in progress */
4953                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4954                 spin_unlock_irq(&phba->hbalock);
4955
4956                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4957                                 "2771 Start FCF fast failover process due to "
4958                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4959                                 "\n", acqe_fip->event_tag, acqe_fip->index);
4960                 rc = lpfc_sli4_redisc_fcf_table(phba);
4961                 if (rc) {
4962                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4963                                         LOG_DISCOVERY,
4964                                         "2772 Issue FCF rediscover mabilbox "
4965                                         "command failed, fail through to FCF "
4966                                         "dead event\n");
4967                         spin_lock_irq(&phba->hbalock);
4968                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4969                         spin_unlock_irq(&phba->hbalock);
4970                         /*
4971                          * Last resort will fail over by treating this
4972                          * as a link down to FCF registration.
4973                          */
4974                         lpfc_sli4_fcf_dead_failthrough(phba);
4975                 } else {
4976                         /* Reset FCF roundrobin bmask for new discovery */
4977                         lpfc_sli4_clear_fcf_rr_bmask(phba);
4978                         /*
4979                          * Handling fast FCF failover to a DEAD FCF event is
4980                          * considered equalivant to receiving CVL to all vports.
4981                          */
4982                         lpfc_sli4_perform_all_vport_cvl(phba);
4983                 }
4984                 break;
4985         case LPFC_FIP_EVENT_TYPE_CVL:
4986                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4987                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4988                         "2718 Clear Virtual Link Received for VPI 0x%x"
4989                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4990
4991                 vport = lpfc_find_vport_by_vpid(phba,
4992                                                 acqe_fip->index);
4993                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4994                 if (!ndlp)
4995                         break;
4996                 active_vlink_present = 0;
4997
4998                 vports = lpfc_create_vport_work_array(phba);
4999                 if (vports) {
5000                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5001                                         i++) {
5002                                 if ((!(vports[i]->fc_flag &
5003                                         FC_VPORT_CVL_RCVD)) &&
5004                                         (vports[i]->port_state > LPFC_FDISC)) {
5005                                         active_vlink_present = 1;
5006                                         break;
5007                                 }
5008                         }
5009                         lpfc_destroy_vport_work_array(phba, vports);
5010                 }
5011
5012                 /*
5013                  * Don't re-instantiate if vport is marked for deletion.
5014                  * If we are here first then vport_delete is going to wait
5015                  * for discovery to complete.
5016                  */
5017                 if (!(vport->load_flag & FC_UNLOADING) &&
5018                                         active_vlink_present) {
5019                         /*
5020                          * If there are other active VLinks present,
5021                          * re-instantiate the Vlink using FDISC.
5022                          */
5023                         mod_timer(&ndlp->nlp_delayfunc,
5024                                   jiffies + msecs_to_jiffies(1000));
5025                         shost = lpfc_shost_from_vport(vport);
5026                         spin_lock_irq(shost->host_lock);
5027                         ndlp->nlp_flag |= NLP_DELAY_TMO;
5028                         spin_unlock_irq(shost->host_lock);
5029                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5030                         vport->port_state = LPFC_FDISC;
5031                 } else {
5032                         /*
5033                          * Otherwise, we request port to rediscover
5034                          * the entire FCF table for a fast recovery
5035                          * from possible case that the current FCF
5036                          * is no longer valid if we are not already
5037                          * in the FCF failover process.
5038                          */
5039                         spin_lock_irq(&phba->hbalock);
5040                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5041                                 spin_unlock_irq(&phba->hbalock);
5042                                 break;
5043                         }
5044                         /* Mark the fast failover process in progress */
5045                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5046                         spin_unlock_irq(&phba->hbalock);
5047                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5048                                         LOG_DISCOVERY,
5049                                         "2773 Start FCF failover per CVL, "
5050                                         "evt_tag:x%x\n", acqe_fip->event_tag);
5051                         rc = lpfc_sli4_redisc_fcf_table(phba);
5052                         if (rc) {
5053                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5054                                                 LOG_DISCOVERY,
5055                                                 "2774 Issue FCF rediscover "
5056                                                 "mabilbox command failed, "
5057                                                 "through to CVL event\n");
5058                                 spin_lock_irq(&phba->hbalock);
5059                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5060                                 spin_unlock_irq(&phba->hbalock);
5061                                 /*
5062                                  * Last resort will be re-try on the
5063                                  * the current registered FCF entry.
5064                                  */
5065                                 lpfc_retry_pport_discovery(phba);
5066                         } else
5067                                 /*
5068                                  * Reset FCF roundrobin bmask for new
5069                                  * discovery.
5070                                  */
5071                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
5072                 }
5073                 break;
5074         default:
5075                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5076                         "0288 Unknown FCoE event type 0x%x event tag "
5077                         "0x%x\n", event_type, acqe_fip->event_tag);
5078                 break;
5079         }
5080 }
5081
5082 /**
5083  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5084  * @phba: pointer to lpfc hba data structure.
5085  * @acqe_link: pointer to the async dcbx completion queue entry.
5086  *
5087  * This routine is to handle the SLI4 asynchronous dcbx event.
5088  **/
5089 static void
5090 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5091                          struct lpfc_acqe_dcbx *acqe_dcbx)
5092 {
5093         phba->fc_eventTag = acqe_dcbx->event_tag;
5094         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5095                         "0290 The SLI4 DCBX asynchronous event is not "
5096                         "handled yet\n");
5097 }
5098
5099 /**
5100  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5101  * @phba: pointer to lpfc hba data structure.
5102  * @acqe_link: pointer to the async grp5 completion queue entry.
5103  *
5104  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5105  * is an asynchronous notified of a logical link speed change.  The Port
5106  * reports the logical link speed in units of 10Mbps.
5107  **/
5108 static void
5109 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5110                          struct lpfc_acqe_grp5 *acqe_grp5)
5111 {
5112         uint16_t prev_ll_spd;
5113
5114         phba->fc_eventTag = acqe_grp5->event_tag;
5115         phba->fcoe_eventtag = acqe_grp5->event_tag;
5116         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5117         phba->sli4_hba.link_state.logical_speed =
5118                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5119         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5120                         "2789 GRP5 Async Event: Updating logical link speed "
5121                         "from %dMbps to %dMbps\n", prev_ll_spd,
5122                         phba->sli4_hba.link_state.logical_speed);
5123 }
5124
5125 /**
5126  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5127  * @phba: pointer to lpfc hba data structure.
5128  *
5129  * This routine is invoked by the worker thread to process all the pending
5130  * SLI4 asynchronous events.
5131  **/
5132 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5133 {
5134         struct lpfc_cq_event *cq_event;
5135
5136         /* First, declare the async event has been handled */
5137         spin_lock_irq(&phba->hbalock);
5138         phba->hba_flag &= ~ASYNC_EVENT;
5139         spin_unlock_irq(&phba->hbalock);
5140         /* Now, handle all the async events */
5141         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5142                 /* Get the first event from the head of the event queue */
5143                 spin_lock_irq(&phba->hbalock);
5144                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5145                                  cq_event, struct lpfc_cq_event, list);
5146                 spin_unlock_irq(&phba->hbalock);
5147                 /* Process the asynchronous event */
5148                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5149                 case LPFC_TRAILER_CODE_LINK:
5150                         lpfc_sli4_async_link_evt(phba,
5151                                                  &cq_event->cqe.acqe_link);
5152                         break;
5153                 case LPFC_TRAILER_CODE_FCOE:
5154                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5155                         break;
5156                 case LPFC_TRAILER_CODE_DCBX:
5157                         lpfc_sli4_async_dcbx_evt(phba,
5158                                                  &cq_event->cqe.acqe_dcbx);
5159                         break;
5160                 case LPFC_TRAILER_CODE_GRP5:
5161                         lpfc_sli4_async_grp5_evt(phba,
5162                                                  &cq_event->cqe.acqe_grp5);
5163                         break;
5164                 case LPFC_TRAILER_CODE_FC:
5165                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5166                         break;
5167                 case LPFC_TRAILER_CODE_SLI:
5168                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5169                         break;
5170                 default:
5171                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5172                                         "1804 Invalid asynchrous event code: "
5173                                         "x%x\n", bf_get(lpfc_trailer_code,
5174                                         &cq_event->cqe.mcqe_cmpl));
5175                         break;
5176                 }
5177                 /* Free the completion event processed to the free pool */
5178                 lpfc_sli4_cq_event_release(phba, cq_event);
5179         }
5180 }
5181
5182 /**
5183  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5184  * @phba: pointer to lpfc hba data structure.
5185  *
5186  * This routine is invoked by the worker thread to process FCF table
5187  * rediscovery pending completion event.
5188  **/
5189 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5190 {
5191         int rc;
5192
5193         spin_lock_irq(&phba->hbalock);
5194         /* Clear FCF rediscovery timeout event */
5195         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5196         /* Clear driver fast failover FCF record flag */
5197         phba->fcf.failover_rec.flag = 0;
5198         /* Set state for FCF fast failover */
5199         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5200         spin_unlock_irq(&phba->hbalock);
5201
5202         /* Scan FCF table from the first entry to re-discover SAN */
5203         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5204                         "2777 Start post-quiescent FCF table scan\n");
5205         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5206         if (rc)
5207                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5208                                 "2747 Issue FCF scan read FCF mailbox "
5209                                 "command failed 0x%x\n", rc);
5210 }
5211
5212 /**
5213  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5214  * @phba: pointer to lpfc hba data structure.
5215  * @dev_grp: The HBA PCI-Device group number.
5216  *
5217  * This routine is invoked to set up the per HBA PCI-Device group function
5218  * API jump table entries.
5219  *
5220  * Return: 0 if success, otherwise -ENODEV
5221  **/
5222 int
5223 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5224 {
5225         int rc;
5226
5227         /* Set up lpfc PCI-device group */
5228         phba->pci_dev_grp = dev_grp;
5229
5230         /* The LPFC_PCI_DEV_OC uses SLI4 */
5231         if (dev_grp == LPFC_PCI_DEV_OC)
5232                 phba->sli_rev = LPFC_SLI_REV4;
5233
5234         /* Set up device INIT API function jump table */
5235         rc = lpfc_init_api_table_setup(phba, dev_grp);
5236         if (rc)
5237                 return -ENODEV;
5238         /* Set up SCSI API function jump table */
5239         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5240         if (rc)
5241                 return -ENODEV;
5242         /* Set up SLI API function jump table */
5243         rc = lpfc_sli_api_table_setup(phba, dev_grp);
5244         if (rc)
5245                 return -ENODEV;
5246         /* Set up MBOX API function jump table */
5247         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5248         if (rc)
5249                 return -ENODEV;
5250
5251         return 0;
5252 }
5253
5254 /**
5255  * lpfc_log_intr_mode - Log the active interrupt mode
5256  * @phba: pointer to lpfc hba data structure.
5257  * @intr_mode: active interrupt mode adopted.
5258  *
5259  * This routine it invoked to log the currently used active interrupt mode
5260  * to the device.
5261  **/
5262 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5263 {
5264         switch (intr_mode) {
5265         case 0:
5266                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5267                                 "0470 Enable INTx interrupt mode.\n");
5268                 break;
5269         case 1:
5270                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5271                                 "0481 Enabled MSI interrupt mode.\n");
5272                 break;
5273         case 2:
5274                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5275                                 "0480 Enabled MSI-X interrupt mode.\n");
5276                 break;
5277         default:
5278                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5279                                 "0482 Illegal interrupt mode.\n");
5280                 break;
5281         }
5282         return;
5283 }
5284
5285 /**
5286  * lpfc_enable_pci_dev - Enable a generic PCI device.
5287  * @phba: pointer to lpfc hba data structure.
5288  *
5289  * This routine is invoked to enable the PCI device that is common to all
5290  * PCI devices.
5291  *
5292  * Return codes
5293  *      0 - successful
5294  *      other values - error
5295  **/
5296 static int
5297 lpfc_enable_pci_dev(struct lpfc_hba *phba)
5298 {
5299         struct pci_dev *pdev;
5300
5301         /* Obtain PCI device reference */
5302         if (!phba->pcidev)
5303                 goto out_error;
5304         else
5305                 pdev = phba->pcidev;
5306         /* Enable PCI device */
5307         if (pci_enable_device_mem(pdev))
5308                 goto out_error;
5309         /* Request PCI resource for the device */
5310         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
5311                 goto out_disable_device;
5312         /* Set up device as PCI master and save state for EEH */
5313         pci_set_master(pdev);
5314         pci_try_set_mwi(pdev);
5315         pci_save_state(pdev);
5316
5317         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
5318         if (pci_is_pcie(pdev))
5319                 pdev->needs_freset = 1;
5320
5321         return 0;
5322
5323 out_disable_device:
5324         pci_disable_device(pdev);
5325 out_error:
5326         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5327                         "1401 Failed to enable pci device\n");
5328         return -ENODEV;
5329 }
5330
5331 /**
5332  * lpfc_disable_pci_dev - Disable a generic PCI device.
5333  * @phba: pointer to lpfc hba data structure.
5334  *
5335  * This routine is invoked to disable the PCI device that is common to all
5336  * PCI devices.
5337  **/
5338 static void
5339 lpfc_disable_pci_dev(struct lpfc_hba *phba)
5340 {
5341         struct pci_dev *pdev;
5342
5343         /* Obtain PCI device reference */
5344         if (!phba->pcidev)
5345                 return;
5346         else
5347                 pdev = phba->pcidev;
5348         /* Release PCI resource and disable PCI device */
5349         pci_release_mem_regions(pdev);
5350         pci_disable_device(pdev);
5351
5352         return;
5353 }
5354
5355 /**
5356  * lpfc_reset_hba - Reset a hba
5357  * @phba: pointer to lpfc hba data structure.
5358  *
5359  * This routine is invoked to reset a hba device. It brings the HBA
5360  * offline, performs a board restart, and then brings the board back
5361  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
5362  * on outstanding mailbox commands.
5363  **/
5364 void
5365 lpfc_reset_hba(struct lpfc_hba *phba)
5366 {
5367         /* If resets are disabled then set error state and return. */
5368         if (!phba->cfg_enable_hba_reset) {
5369                 phba->link_state = LPFC_HBA_ERROR;
5370                 return;
5371         }
5372         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
5373                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
5374         else
5375                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
5376         lpfc_offline(phba);
5377         lpfc_sli_brdrestart(phba);
5378         lpfc_online(phba);
5379         lpfc_unblock_mgmt_io(phba);
5380 }
5381
5382 /**
5383  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
5384  * @phba: pointer to lpfc hba data structure.
5385  *
5386  * This function enables the PCI SR-IOV virtual functions to a physical
5387  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5388  * enable the number of virtual functions to the physical function. As
5389  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5390  * API call does not considered as an error condition for most of the device.
5391  **/
5392 uint16_t
5393 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
5394 {
5395         struct pci_dev *pdev = phba->pcidev;
5396         uint16_t nr_virtfn;
5397         int pos;
5398
5399         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
5400         if (pos == 0)
5401                 return 0;
5402
5403         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
5404         return nr_virtfn;
5405 }
5406
5407 /**
5408  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
5409  * @phba: pointer to lpfc hba data structure.
5410  * @nr_vfn: number of virtual functions to be enabled.
5411  *
5412  * This function enables the PCI SR-IOV virtual functions to a physical
5413  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5414  * enable the number of virtual functions to the physical function. As
5415  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5416  * API call does not considered as an error condition for most of the device.
5417  **/
5418 int
5419 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
5420 {
5421         struct pci_dev *pdev = phba->pcidev;
5422         uint16_t max_nr_vfn;
5423         int rc;
5424
5425         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
5426         if (nr_vfn > max_nr_vfn) {
5427                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5428                                 "3057 Requested vfs (%d) greater than "
5429                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
5430                 return -EINVAL;
5431         }
5432
5433         rc = pci_enable_sriov(pdev, nr_vfn);
5434         if (rc) {
5435                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5436                                 "2806 Failed to enable sriov on this device "
5437                                 "with vfn number nr_vf:%d, rc:%d\n",
5438                                 nr_vfn, rc);
5439         } else
5440                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5441                                 "2807 Successful enable sriov on this device "
5442                                 "with vfn number nr_vf:%d\n", nr_vfn);
5443         return rc;
5444 }
5445
5446 /**
5447  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5448  * @phba: pointer to lpfc hba data structure.
5449  *
5450  * This routine is invoked to set up the driver internal resources before the
5451  * device specific resource setup to support the HBA device it attached to.
5452  *
5453  * Return codes
5454  *      0 - successful
5455  *      other values - error
5456  **/
5457 static int
5458 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5459 {
5460         struct lpfc_sli *psli = &phba->sli;
5461
5462         /*
5463          * Driver resources common to all SLI revisions
5464          */
5465         atomic_set(&phba->fast_event_count, 0);
5466         spin_lock_init(&phba->hbalock);
5467
5468         /* Initialize ndlp management spinlock */
5469         spin_lock_init(&phba->ndlp_lock);
5470
5471         INIT_LIST_HEAD(&phba->port_list);
5472         INIT_LIST_HEAD(&phba->work_list);
5473         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5474
5475         /* Initialize the wait queue head for the kernel thread */
5476         init_waitqueue_head(&phba->work_waitq);
5477
5478         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5479                         "1403 Protocols supported %s %s %s\n",
5480                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
5481                                 "SCSI" : " "),
5482                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
5483                                 "NVME" : " "),
5484                         (phba->nvmet_support ? "NVMET" : " "));
5485
5486         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5487                 /* Initialize the scsi buffer list used by driver for scsi IO */
5488                 spin_lock_init(&phba->scsi_buf_list_get_lock);
5489                 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5490                 spin_lock_init(&phba->scsi_buf_list_put_lock);
5491                 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5492         }
5493
5494         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
5495                 (phba->nvmet_support == 0)) {
5496                 /* Initialize the NVME buffer list used by driver for NVME IO */
5497                 spin_lock_init(&phba->nvme_buf_list_get_lock);
5498                 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get);
5499                 spin_lock_init(&phba->nvme_buf_list_put_lock);
5500                 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
5501         }
5502
5503         /* Initialize the fabric iocb list */
5504         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5505
5506         /* Initialize list to save ELS buffers */
5507         INIT_LIST_HEAD(&phba->elsbuf);
5508
5509         /* Initialize FCF connection rec list */
5510         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5511
5512         /* Initialize OAS configuration list */
5513         spin_lock_init(&phba->devicelock);
5514         INIT_LIST_HEAD(&phba->luns);
5515
5516         /* MBOX heartbeat timer */
5517         setup_timer(&psli->mbox_tmo, lpfc_mbox_timeout, (unsigned long)phba);
5518         /* Fabric block timer */
5519         setup_timer(&phba->fabric_block_timer, lpfc_fabric_block_timeout,
5520                         (unsigned long)phba);
5521         /* EA polling mode timer */
5522         setup_timer(&phba->eratt_poll, lpfc_poll_eratt,
5523                         (unsigned long)phba);
5524         /* Heartbeat timer */
5525         setup_timer(&phba->hb_tmofunc, lpfc_hb_timeout, (unsigned long)phba);
5526
5527         return 0;
5528 }
5529
5530 /**
5531  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
5532  * @phba: pointer to lpfc hba data structure.
5533  *
5534  * This routine is invoked to set up the driver internal resources specific to
5535  * support the SLI-3 HBA device it attached to.
5536  *
5537  * Return codes
5538  * 0 - successful
5539  * other values - error
5540  **/
5541 static int
5542 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
5543 {
5544         int rc;
5545
5546         /*
5547          * Initialize timers used by driver
5548          */
5549
5550         /* FCP polling mode timer */
5551         setup_timer(&phba->fcp_poll_timer, lpfc_poll_timeout,
5552                         (unsigned long)phba);
5553
5554         /* Host attention work mask setup */
5555         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
5556         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
5557
5558         /* Get all the module params for configuring this host */
5559         lpfc_get_cfgparam(phba);
5560         /* Set up phase-1 common device driver resources */
5561
5562         rc = lpfc_setup_driver_resource_phase1(phba);
5563         if (rc)
5564                 return -ENODEV;
5565
5566         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
5567                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
5568                 /* check for menlo minimum sg count */
5569                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
5570                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
5571         }
5572
5573         if (!phba->sli.sli3_ring)
5574                 phba->sli.sli3_ring = kzalloc(LPFC_SLI3_MAX_RING *
5575                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5576         if (!phba->sli.sli3_ring)
5577                 return -ENOMEM;
5578
5579         /*
5580          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5581          * used to create the sg_dma_buf_pool must be dynamically calculated.
5582          */
5583
5584         /* Initialize the host templates the configured values. */
5585         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5586         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5587         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5588
5589         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5590         if (phba->cfg_enable_bg) {
5591                 /*
5592                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5593                  * the FCP rsp, and a BDE for each. Sice we have no control
5594                  * over how many protection data segments the SCSI Layer
5595                  * will hand us (ie: there could be one for every block
5596                  * in the IO), we just allocate enough BDEs to accomidate
5597                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5598                  * minimize the risk of running out.
5599                  */
5600                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5601                         sizeof(struct fcp_rsp) +
5602                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5603
5604                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5605                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5606
5607                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5608                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5609         } else {
5610                 /*
5611                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5612                  * the FCP rsp, a BDE for each, and a BDE for up to
5613                  * cfg_sg_seg_cnt data segments.
5614                  */
5615                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5616                         sizeof(struct fcp_rsp) +
5617                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5618
5619                 /* Total BDEs in BPL for scsi_sg_list */
5620                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5621         }
5622
5623         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5624                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5625                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5626                         phba->cfg_total_seg_cnt);
5627
5628         phba->max_vpi = LPFC_MAX_VPI;
5629         /* This will be set to correct value after config_port mbox */
5630         phba->max_vports = 0;
5631
5632         /*
5633          * Initialize the SLI Layer to run with lpfc HBAs.
5634          */
5635         lpfc_sli_setup(phba);
5636         lpfc_sli_queue_init(phba);
5637
5638         /* Allocate device driver memory */
5639         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5640                 return -ENOMEM;
5641
5642         /*
5643          * Enable sr-iov virtual functions if supported and configured
5644          * through the module parameter.
5645          */
5646         if (phba->cfg_sriov_nr_virtfn > 0) {
5647                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5648                                                  phba->cfg_sriov_nr_virtfn);
5649                 if (rc) {
5650                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5651                                         "2808 Requested number of SR-IOV "
5652                                         "virtual functions (%d) is not "
5653                                         "supported\n",
5654                                         phba->cfg_sriov_nr_virtfn);
5655                         phba->cfg_sriov_nr_virtfn = 0;
5656                 }
5657         }
5658
5659         return 0;
5660 }
5661
5662 /**
5663  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5664  * @phba: pointer to lpfc hba data structure.
5665  *
5666  * This routine is invoked to unset the driver internal resources set up
5667  * specific for supporting the SLI-3 HBA device it attached to.
5668  **/
5669 static void
5670 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5671 {
5672         /* Free device driver memory allocated */
5673         lpfc_mem_free_all(phba);
5674
5675         return;
5676 }
5677
5678 /**
5679  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5680  * @phba: pointer to lpfc hba data structure.
5681  *
5682  * This routine is invoked to set up the driver internal resources specific to
5683  * support the SLI-4 HBA device it attached to.
5684  *
5685  * Return codes
5686  *      0 - successful
5687  *      other values - error
5688  **/
5689 static int
5690 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5691 {
5692         LPFC_MBOXQ_t *mboxq;
5693         MAILBOX_t *mb;
5694         int rc, i, max_buf_size;
5695         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5696         struct lpfc_mqe *mqe;
5697         int longs;
5698         int fof_vectors = 0;
5699         uint64_t wwn;
5700
5701         phba->sli4_hba.num_online_cpu = num_online_cpus();
5702         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
5703         phba->sli4_hba.curr_disp_cpu = 0;
5704
5705         /* Get all the module params for configuring this host */
5706         lpfc_get_cfgparam(phba);
5707
5708         /* Set up phase-1 common device driver resources */
5709         rc = lpfc_setup_driver_resource_phase1(phba);
5710         if (rc)
5711                 return -ENODEV;
5712
5713         /* Before proceed, wait for POST done and device ready */
5714         rc = lpfc_sli4_post_status_check(phba);
5715         if (rc)
5716                 return -ENODEV;
5717
5718         /*
5719          * Initialize timers used by driver
5720          */
5721
5722         setup_timer(&phba->rrq_tmr, lpfc_rrq_timeout, (unsigned long)phba);
5723
5724         /* FCF rediscover timer */
5725         setup_timer(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo,
5726                         (unsigned long)phba);
5727
5728         /*
5729          * Control structure for handling external multi-buffer mailbox
5730          * command pass-through.
5731          */
5732         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5733                 sizeof(struct lpfc_mbox_ext_buf_ctx));
5734         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5735
5736         phba->max_vpi = LPFC_MAX_VPI;
5737
5738         /* This will be set to correct value after the read_config mbox */
5739         phba->max_vports = 0;
5740
5741         /* Program the default value of vlan_id and fc_map */
5742         phba->valid_vlan = 0;
5743         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5744         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5745         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5746
5747         /*
5748          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5749          * we will associate a new ring, for each EQ/CQ/WQ tuple.
5750          * The WQ create will allocate the ring.
5751          */
5752
5753         /*
5754          * It doesn't matter what family our adapter is in, we are
5755          * limited to 2 Pages, 512 SGEs, for our SGL.
5756          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5757          */
5758         max_buf_size = (2 * SLI4_PAGE_SIZE);
5759         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5760                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5761
5762         /*
5763          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
5764          * used to create the sg_dma_buf_pool must be calculated.
5765          */
5766         if (phba->cfg_enable_bg) {
5767                 /*
5768                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
5769                  * the FCP rsp, and a SGE. Sice we have no control
5770                  * over how many protection segments the SCSI Layer
5771                  * will hand us (ie: there could be one for every block
5772                  * in the IO), just allocate enough SGEs to accomidate
5773                  * our max amount and we need to limit lpfc_sg_seg_cnt
5774                  * to minimize the risk of running out.
5775                  */
5776                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5777                                 sizeof(struct fcp_rsp) + max_buf_size;
5778
5779                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5780                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5781
5782                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5783                         phba->cfg_sg_seg_cnt =
5784                                 LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5785         } else {
5786                 /*
5787                  * The scsi_buf for a regular I/O holds the FCP cmnd,
5788                  * the FCP rsp, a SGE for each, and a SGE for up to
5789                  * cfg_sg_seg_cnt data segments.
5790                  */
5791                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5792                                 sizeof(struct fcp_rsp) +
5793                                 ((phba->cfg_sg_seg_cnt + 2) *
5794                                 sizeof(struct sli4_sge));
5795
5796                 /* Total SGEs for scsi_sg_list */
5797                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5798
5799                 /*
5800                  * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only
5801                  * need to post 1 page for the SGL.
5802                  */
5803         }
5804
5805         /* Initialize the host templates with the updated values. */
5806         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5807         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5808         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5809
5810         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5811                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5812         else
5813                 phba->cfg_sg_dma_buf_size =
5814                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5815
5816         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5817                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5818                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5819                         phba->cfg_total_seg_cnt);
5820
5821         /* Initialize buffer queue management fields */
5822         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
5823         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5824         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5825
5826         /*
5827          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5828          */
5829         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5830                 /* Initialize the Abort scsi buffer list used by driver */
5831                 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5832                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5833         }
5834
5835         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
5836                 /* Initialize the Abort nvme buffer list used by driver */
5837                 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock);
5838                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
5839                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
5840                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_ctx_list);
5841                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
5842
5843                 /* Fast-path XRI aborted CQ Event work queue list */
5844                 INIT_LIST_HEAD(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue);
5845         }
5846
5847         /* This abort list used by worker thread */
5848         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
5849         spin_lock_init(&phba->sli4_hba.nvmet_io_lock);
5850         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
5851
5852         /*
5853          * Initialize driver internal slow-path work queues
5854          */
5855
5856         /* Driver internel slow-path CQ Event pool */
5857         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5858         /* Response IOCB work queue list */
5859         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5860         /* Asynchronous event CQ Event work queue list */
5861         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5862         /* Fast-path XRI aborted CQ Event work queue list */
5863         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5864         /* Slow-path XRI aborted CQ Event work queue list */
5865         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5866         /* Receive queue CQ Event work queue list */
5867         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5868
5869         /* Initialize extent block lists. */
5870         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5871         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5872         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5873         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5874
5875         /* Initialize mboxq lists. If the early init routines fail
5876          * these lists need to be correctly initialized.
5877          */
5878         INIT_LIST_HEAD(&phba->sli.mboxq);
5879         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
5880
5881         /* initialize optic_state to 0xFF */
5882         phba->sli4_hba.lnk_info.optic_state = 0xff;
5883
5884         /* Allocate device driver memory */
5885         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5886         if (rc)
5887                 return -ENOMEM;
5888
5889         /* IF Type 2 ports get initialized now. */
5890         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5891             LPFC_SLI_INTF_IF_TYPE_2) {
5892                 rc = lpfc_pci_function_reset(phba);
5893                 if (unlikely(rc)) {
5894                         rc = -ENODEV;
5895                         goto out_free_mem;
5896                 }
5897                 phba->temp_sensor_support = 1;
5898         }
5899
5900         /* Create the bootstrap mailbox command */
5901         rc = lpfc_create_bootstrap_mbox(phba);
5902         if (unlikely(rc))
5903                 goto out_free_mem;
5904
5905         /* Set up the host's endian order with the device. */
5906         rc = lpfc_setup_endian_order(phba);
5907         if (unlikely(rc))
5908                 goto out_free_bsmbx;
5909
5910         /* Set up the hba's configuration parameters. */
5911         rc = lpfc_sli4_read_config(phba);
5912         if (unlikely(rc))
5913                 goto out_free_bsmbx;
5914         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5915         if (unlikely(rc))
5916                 goto out_free_bsmbx;
5917
5918         /* IF Type 0 ports get initialized now. */
5919         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5920             LPFC_SLI_INTF_IF_TYPE_0) {
5921                 rc = lpfc_pci_function_reset(phba);
5922                 if (unlikely(rc))
5923                         goto out_free_bsmbx;
5924         }
5925
5926         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5927                                                        GFP_KERNEL);
5928         if (!mboxq) {
5929                 rc = -ENOMEM;
5930                 goto out_free_bsmbx;
5931         }
5932
5933         /* Check for NVMET being configured */
5934         phba->nvmet_support = 0;
5935         if (lpfc_enable_nvmet_cnt) {
5936
5937                 /* First get WWN of HBA instance */
5938                 lpfc_read_nv(phba, mboxq);
5939                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5940                 if (rc != MBX_SUCCESS) {
5941                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5942                                         "6016 Mailbox failed , mbxCmd x%x "
5943                                         "READ_NV, mbxStatus x%x\n",
5944                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5945                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
5946                         mempool_free(mboxq, phba->mbox_mem_pool);
5947                         rc = -EIO;
5948                         goto out_free_bsmbx;
5949                 }
5950                 mb = &mboxq->u.mb;
5951                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
5952                        sizeof(uint64_t));
5953                 wwn = cpu_to_be64(wwn);
5954                 phba->sli4_hba.wwnn.u.name = wwn;
5955                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
5956                        sizeof(uint64_t));
5957                 /* wwn is WWPN of HBA instance */
5958                 wwn = cpu_to_be64(wwn);
5959                 phba->sli4_hba.wwpn.u.name = wwn;
5960
5961                 /* Check to see if it matches any module parameter */
5962                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
5963                         if (wwn == lpfc_enable_nvmet[i]) {
5964 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
5965                                 if (lpfc_nvmet_mem_alloc(phba))
5966                                         break;
5967
5968                                 phba->nvmet_support = 1; /* a match */
5969
5970                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5971                                                 "6017 NVME Target %016llx\n",
5972                                                 wwn);
5973 #else
5974                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5975                                                 "6021 Can't enable NVME Target."
5976                                                 " NVME_TARGET_FC infrastructure"
5977                                                 " is not in kernel\n");
5978 #endif
5979                                 break;
5980                         }
5981                 }
5982         }
5983
5984         lpfc_nvme_mod_param_dep(phba);
5985
5986         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5987         lpfc_supported_pages(mboxq);
5988         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5989         if (!rc) {
5990                 mqe = &mboxq->u.mqe;
5991                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5992                        LPFC_MAX_SUPPORTED_PAGES);
5993                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5994                         switch (pn_page[i]) {
5995                         case LPFC_SLI4_PARAMETERS:
5996                                 phba->sli4_hba.pc_sli4_params.supported = 1;
5997                                 break;
5998                         default:
5999                                 break;
6000                         }
6001                 }
6002                 /* Read the port's SLI4 Parameters capabilities if supported. */
6003                 if (phba->sli4_hba.pc_sli4_params.supported)
6004                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
6005                 if (rc) {
6006                         mempool_free(mboxq, phba->mbox_mem_pool);
6007                         rc = -EIO;
6008                         goto out_free_bsmbx;
6009                 }
6010         }
6011
6012         /*
6013          * Get sli4 parameters that override parameters from Port capabilities.
6014          * If this call fails, it isn't critical unless the SLI4 parameters come
6015          * back in conflict.
6016          */
6017         rc = lpfc_get_sli4_parameters(phba, mboxq);
6018         if (rc) {
6019                 if (phba->sli4_hba.extents_in_use &&
6020                     phba->sli4_hba.rpi_hdrs_in_use) {
6021                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6022                                 "2999 Unsupported SLI4 Parameters "
6023                                 "Extents and RPI headers enabled.\n");
6024                 }
6025                 mempool_free(mboxq, phba->mbox_mem_pool);
6026                 goto out_free_bsmbx;
6027         }
6028
6029         mempool_free(mboxq, phba->mbox_mem_pool);
6030
6031         /* Verify OAS is supported */
6032         lpfc_sli4_oas_verify(phba);
6033         if (phba->cfg_fof)
6034                 fof_vectors = 1;
6035
6036         /* Verify all the SLI4 queues */
6037         rc = lpfc_sli4_queue_verify(phba);
6038         if (rc)
6039                 goto out_free_bsmbx;
6040
6041         /* Create driver internal CQE event pool */
6042         rc = lpfc_sli4_cq_event_pool_create(phba);
6043         if (rc)
6044                 goto out_free_bsmbx;
6045
6046         /* Initialize sgl lists per host */
6047         lpfc_init_sgl_list(phba);
6048
6049         /* Allocate and initialize active sgl array */
6050         rc = lpfc_init_active_sgl_array(phba);
6051         if (rc) {
6052                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6053                                 "1430 Failed to initialize sgl list.\n");
6054                 goto out_destroy_cq_event_pool;
6055         }
6056         rc = lpfc_sli4_init_rpi_hdrs(phba);
6057         if (rc) {
6058                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6059                                 "1432 Failed to initialize rpi headers.\n");
6060                 goto out_free_active_sgl;
6061         }
6062
6063         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6064         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6065         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
6066                                          GFP_KERNEL);
6067         if (!phba->fcf.fcf_rr_bmask) {
6068                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6069                                 "2759 Failed allocate memory for FCF round "
6070                                 "robin failover bmask\n");
6071                 rc = -ENOMEM;
6072                 goto out_remove_rpi_hdrs;
6073         }
6074
6075         phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs,
6076                                                 sizeof(struct lpfc_hba_eq_hdl),
6077                                                 GFP_KERNEL);
6078         if (!phba->sli4_hba.hba_eq_hdl) {
6079                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6080                                 "2572 Failed allocate memory for "
6081                                 "fast-path per-EQ handle array\n");
6082                 rc = -ENOMEM;
6083                 goto out_free_fcf_rr_bmask;
6084         }
6085
6086         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu,
6087                                         sizeof(struct lpfc_vector_map_info),
6088                                         GFP_KERNEL);
6089         if (!phba->sli4_hba.cpu_map) {
6090                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6091                                 "3327 Failed allocate memory for msi-x "
6092                                 "interrupt vector mapping\n");
6093                 rc = -ENOMEM;
6094                 goto out_free_hba_eq_hdl;
6095         }
6096         if (lpfc_used_cpu == NULL) {
6097                 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t),
6098                                                 GFP_KERNEL);
6099                 if (!lpfc_used_cpu) {
6100                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6101                                         "3335 Failed allocate memory for msi-x "
6102                                         "interrupt vector mapping\n");
6103                         kfree(phba->sli4_hba.cpu_map);
6104                         rc = -ENOMEM;
6105                         goto out_free_hba_eq_hdl;
6106                 }
6107                 for (i = 0; i < lpfc_present_cpu; i++)
6108                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
6109         }
6110
6111         /*
6112          * Enable sr-iov virtual functions if supported and configured
6113          * through the module parameter.
6114          */
6115         if (phba->cfg_sriov_nr_virtfn > 0) {
6116                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6117                                                  phba->cfg_sriov_nr_virtfn);
6118                 if (rc) {
6119                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6120                                         "3020 Requested number of SR-IOV "
6121                                         "virtual functions (%d) is not "
6122                                         "supported\n",
6123                                         phba->cfg_sriov_nr_virtfn);
6124                         phba->cfg_sriov_nr_virtfn = 0;
6125                 }
6126         }
6127
6128         return 0;
6129
6130 out_free_hba_eq_hdl:
6131         kfree(phba->sli4_hba.hba_eq_hdl);
6132 out_free_fcf_rr_bmask:
6133         kfree(phba->fcf.fcf_rr_bmask);
6134 out_remove_rpi_hdrs:
6135         lpfc_sli4_remove_rpi_hdrs(phba);
6136 out_free_active_sgl:
6137         lpfc_free_active_sgl(phba);
6138 out_destroy_cq_event_pool:
6139         lpfc_sli4_cq_event_pool_destroy(phba);
6140 out_free_bsmbx:
6141         lpfc_destroy_bootstrap_mbox(phba);
6142 out_free_mem:
6143         lpfc_mem_free(phba);
6144         return rc;
6145 }
6146
6147 /**
6148  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6149  * @phba: pointer to lpfc hba data structure.
6150  *
6151  * This routine is invoked to unset the driver internal resources set up
6152  * specific for supporting the SLI-4 HBA device it attached to.
6153  **/
6154 static void
6155 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6156 {
6157         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6158
6159         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6160         kfree(phba->sli4_hba.cpu_map);
6161         phba->sli4_hba.num_present_cpu = 0;
6162         phba->sli4_hba.num_online_cpu = 0;
6163         phba->sli4_hba.curr_disp_cpu = 0;
6164
6165         /* Free memory allocated for fast-path work queue handles */
6166         kfree(phba->sli4_hba.hba_eq_hdl);
6167
6168         /* Free the allocated rpi headers. */
6169         lpfc_sli4_remove_rpi_hdrs(phba);
6170         lpfc_sli4_remove_rpis(phba);
6171
6172         /* Free eligible FCF index bmask */
6173         kfree(phba->fcf.fcf_rr_bmask);
6174
6175         /* Free the ELS sgl list */
6176         lpfc_free_active_sgl(phba);
6177         lpfc_free_els_sgl_list(phba);
6178         lpfc_free_nvmet_sgl_list(phba);
6179
6180         /* Free the completion queue EQ event pool */
6181         lpfc_sli4_cq_event_release_all(phba);
6182         lpfc_sli4_cq_event_pool_destroy(phba);
6183
6184         /* Release resource identifiers. */
6185         lpfc_sli4_dealloc_resource_identifiers(phba);
6186
6187         /* Free the bsmbx region. */
6188         lpfc_destroy_bootstrap_mbox(phba);
6189
6190         /* Free the SLI Layer memory with SLI4 HBAs */
6191         lpfc_mem_free_all(phba);
6192
6193         /* Free the current connect table */
6194         list_for_each_entry_safe(conn_entry, next_conn_entry,
6195                 &phba->fcf_conn_rec_list, list) {
6196                 list_del_init(&conn_entry->list);
6197                 kfree(conn_entry);
6198         }
6199
6200         return;
6201 }
6202
6203 /**
6204  * lpfc_init_api_table_setup - Set up init api function jump table
6205  * @phba: The hba struct for which this call is being executed.
6206  * @dev_grp: The HBA PCI-Device group number.
6207  *
6208  * This routine sets up the device INIT interface API function jump table
6209  * in @phba struct.
6210  *
6211  * Returns: 0 - success, -ENODEV - failure.
6212  **/
6213 int
6214 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6215 {
6216         phba->lpfc_hba_init_link = lpfc_hba_init_link;
6217         phba->lpfc_hba_down_link = lpfc_hba_down_link;
6218         phba->lpfc_selective_reset = lpfc_selective_reset;
6219         switch (dev_grp) {
6220         case LPFC_PCI_DEV_LP:
6221                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
6222                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
6223                 phba->lpfc_stop_port = lpfc_stop_port_s3;
6224                 break;
6225         case LPFC_PCI_DEV_OC:
6226                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
6227                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
6228                 phba->lpfc_stop_port = lpfc_stop_port_s4;
6229                 break;
6230         default:
6231                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6232                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
6233                                 dev_grp);
6234                 return -ENODEV;
6235                 break;
6236         }
6237         return 0;
6238 }
6239
6240 /**
6241  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
6242  * @phba: pointer to lpfc hba data structure.
6243  *
6244  * This routine is invoked to set up the driver internal resources after the
6245  * device specific resource setup to support the HBA device it attached to.
6246  *
6247  * Return codes
6248  *      0 - successful
6249  *      other values - error
6250  **/
6251 static int
6252 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
6253 {
6254         int error;
6255
6256         /* Startup the kernel thread for this host adapter. */
6257         phba->worker_thread = kthread_run(lpfc_do_work, phba,
6258                                           "lpfc_worker_%d", phba->brd_no);
6259         if (IS_ERR(phba->worker_thread)) {
6260                 error = PTR_ERR(phba->worker_thread);
6261                 return error;
6262         }
6263
6264         return 0;
6265 }
6266
6267 /**
6268  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
6269  * @phba: pointer to lpfc hba data structure.
6270  *
6271  * This routine is invoked to unset the driver internal resources set up after
6272  * the device specific resource setup for supporting the HBA device it
6273  * attached to.
6274  **/
6275 static void
6276 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
6277 {
6278         /* Stop kernel worker thread */
6279         kthread_stop(phba->worker_thread);
6280 }
6281
6282 /**
6283  * lpfc_free_iocb_list - Free iocb list.
6284  * @phba: pointer to lpfc hba data structure.
6285  *
6286  * This routine is invoked to free the driver's IOCB list and memory.
6287  **/
6288 void
6289 lpfc_free_iocb_list(struct lpfc_hba *phba)
6290 {
6291         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
6292
6293         spin_lock_irq(&phba->hbalock);
6294         list_for_each_entry_safe(iocbq_entry, iocbq_next,
6295                                  &phba->lpfc_iocb_list, list) {
6296                 list_del(&iocbq_entry->list);
6297                 kfree(iocbq_entry);
6298                 phba->total_iocbq_bufs--;
6299         }
6300         spin_unlock_irq(&phba->hbalock);
6301
6302         return;
6303 }
6304
6305 /**
6306  * lpfc_init_iocb_list - Allocate and initialize iocb list.
6307  * @phba: pointer to lpfc hba data structure.
6308  *
6309  * This routine is invoked to allocate and initizlize the driver's IOCB
6310  * list and set up the IOCB tag array accordingly.
6311  *
6312  * Return codes
6313  *      0 - successful
6314  *      other values - error
6315  **/
6316 int
6317 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
6318 {
6319         struct lpfc_iocbq *iocbq_entry = NULL;
6320         uint16_t iotag;
6321         int i;
6322
6323         /* Initialize and populate the iocb list per host.  */
6324         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
6325         for (i = 0; i < iocb_count; i++) {
6326                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
6327                 if (iocbq_entry == NULL) {
6328                         printk(KERN_ERR "%s: only allocated %d iocbs of "
6329                                 "expected %d count. Unloading driver.\n",
6330                                 __func__, i, LPFC_IOCB_LIST_CNT);
6331                         goto out_free_iocbq;
6332                 }
6333
6334                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
6335                 if (iotag == 0) {
6336                         kfree(iocbq_entry);
6337                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
6338                                 "Unloading driver.\n", __func__);
6339                         goto out_free_iocbq;
6340                 }
6341                 iocbq_entry->sli4_lxritag = NO_XRI;
6342                 iocbq_entry->sli4_xritag = NO_XRI;
6343
6344                 spin_lock_irq(&phba->hbalock);
6345                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
6346                 phba->total_iocbq_bufs++;
6347                 spin_unlock_irq(&phba->hbalock);
6348         }
6349
6350         return 0;
6351
6352 out_free_iocbq:
6353         lpfc_free_iocb_list(phba);
6354
6355         return -ENOMEM;
6356 }
6357
6358 /**
6359  * lpfc_free_sgl_list - Free a given sgl list.
6360  * @phba: pointer to lpfc hba data structure.
6361  * @sglq_list: pointer to the head of sgl list.
6362  *
6363  * This routine is invoked to free a give sgl list and memory.
6364  **/
6365 void
6366 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
6367 {
6368         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6369
6370         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
6371                 list_del(&sglq_entry->list);
6372                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
6373                 kfree(sglq_entry);
6374         }
6375 }
6376
6377 /**
6378  * lpfc_free_els_sgl_list - Free els sgl list.
6379  * @phba: pointer to lpfc hba data structure.
6380  *
6381  * This routine is invoked to free the driver's els sgl list and memory.
6382  **/
6383 static void
6384 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
6385 {
6386         LIST_HEAD(sglq_list);
6387
6388         /* Retrieve all els sgls from driver list */
6389         spin_lock_irq(&phba->hbalock);
6390         spin_lock(&phba->sli4_hba.sgl_list_lock);
6391         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
6392         spin_unlock(&phba->sli4_hba.sgl_list_lock);
6393         spin_unlock_irq(&phba->hbalock);
6394
6395         /* Now free the sgl list */
6396         lpfc_free_sgl_list(phba, &sglq_list);
6397 }
6398
6399 /**
6400  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
6401  * @phba: pointer to lpfc hba data structure.
6402  *
6403  * This routine is invoked to free the driver's nvmet sgl list and memory.
6404  **/
6405 static void
6406 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
6407 {
6408         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6409         LIST_HEAD(sglq_list);
6410
6411         /* Retrieve all nvmet sgls from driver list */
6412         spin_lock_irq(&phba->hbalock);
6413         spin_lock(&phba->sli4_hba.sgl_list_lock);
6414         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
6415         spin_unlock(&phba->sli4_hba.sgl_list_lock);
6416         spin_unlock_irq(&phba->hbalock);
6417
6418         /* Now free the sgl list */
6419         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
6420                 list_del(&sglq_entry->list);
6421                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
6422                 kfree(sglq_entry);
6423         }
6424 }
6425
6426 /**
6427  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
6428  * @phba: pointer to lpfc hba data structure.
6429  *
6430  * This routine is invoked to allocate the driver's active sgl memory.
6431  * This array will hold the sglq_entry's for active IOs.
6432  **/
6433 static int
6434 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
6435 {
6436         int size;
6437         size = sizeof(struct lpfc_sglq *);
6438         size *= phba->sli4_hba.max_cfg_param.max_xri;
6439
6440         phba->sli4_hba.lpfc_sglq_active_list =
6441                 kzalloc(size, GFP_KERNEL);
6442         if (!phba->sli4_hba.lpfc_sglq_active_list)
6443                 return -ENOMEM;
6444         return 0;
6445 }
6446
6447 /**
6448  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
6449  * @phba: pointer to lpfc hba data structure.
6450  *
6451  * This routine is invoked to walk through the array of active sglq entries
6452  * and free all of the resources.
6453  * This is just a place holder for now.
6454  **/
6455 static void
6456 lpfc_free_active_sgl(struct lpfc_hba *phba)
6457 {
6458         kfree(phba->sli4_hba.lpfc_sglq_active_list);
6459 }
6460
6461 /**
6462  * lpfc_init_sgl_list - Allocate and initialize sgl list.
6463  * @phba: pointer to lpfc hba data structure.
6464  *
6465  * This routine is invoked to allocate and initizlize the driver's sgl
6466  * list and set up the sgl xritag tag array accordingly.
6467  *
6468  **/
6469 static void
6470 lpfc_init_sgl_list(struct lpfc_hba *phba)
6471 {
6472         /* Initialize and populate the sglq list per host/VF. */
6473         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
6474         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
6475         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
6476         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6477
6478         /* els xri-sgl book keeping */
6479         phba->sli4_hba.els_xri_cnt = 0;
6480
6481         /* scsi xri-buffer book keeping */
6482         phba->sli4_hba.scsi_xri_cnt = 0;
6483
6484         /* nvme xri-buffer book keeping */
6485         phba->sli4_hba.nvme_xri_cnt = 0;
6486 }
6487
6488 /**
6489  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
6490  * @phba: pointer to lpfc hba data structure.
6491  *
6492  * This routine is invoked to post rpi header templates to the
6493  * port for those SLI4 ports that do not support extents.  This routine
6494  * posts a PAGE_SIZE memory region to the port to hold up to
6495  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
6496  * and should be called only when interrupts are disabled.
6497  *
6498  * Return codes
6499  *      0 - successful
6500  *      -ERROR - otherwise.
6501  **/
6502 int
6503 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
6504 {
6505         int rc = 0;
6506         struct lpfc_rpi_hdr *rpi_hdr;
6507
6508         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
6509         if (!phba->sli4_hba.rpi_hdrs_in_use)
6510                 return rc;
6511         if (phba->sli4_hba.extents_in_use)
6512                 return -EIO;
6513
6514         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
6515         if (!rpi_hdr) {
6516                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6517                                 "0391 Error during rpi post operation\n");
6518                 lpfc_sli4_remove_rpis(phba);
6519                 rc = -ENODEV;
6520         }
6521
6522         return rc;
6523 }
6524
6525 /**
6526  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
6527  * @phba: pointer to lpfc hba data structure.
6528  *
6529  * This routine is invoked to allocate a single 4KB memory region to
6530  * support rpis and stores them in the phba.  This single region
6531  * provides support for up to 64 rpis.  The region is used globally
6532  * by the device.
6533  *
6534  * Returns:
6535  *   A valid rpi hdr on success.
6536  *   A NULL pointer on any failure.
6537  **/
6538 struct lpfc_rpi_hdr *
6539 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
6540 {
6541         uint16_t rpi_limit, curr_rpi_range;
6542         struct lpfc_dmabuf *dmabuf;
6543         struct lpfc_rpi_hdr *rpi_hdr;
6544
6545         /*
6546          * If the SLI4 port supports extents, posting the rpi header isn't
6547          * required.  Set the expected maximum count and let the actual value
6548          * get set when extents are fully allocated.
6549          */
6550         if (!phba->sli4_hba.rpi_hdrs_in_use)
6551                 return NULL;
6552         if (phba->sli4_hba.extents_in_use)
6553                 return NULL;
6554
6555         /* The limit on the logical index is just the max_rpi count. */
6556         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
6557
6558         spin_lock_irq(&phba->hbalock);
6559         /*
6560          * Establish the starting RPI in this header block.  The starting
6561          * rpi is normalized to a zero base because the physical rpi is
6562          * port based.
6563          */
6564         curr_rpi_range = phba->sli4_hba.next_rpi;
6565         spin_unlock_irq(&phba->hbalock);
6566
6567         /* Reached full RPI range */
6568         if (curr_rpi_range == rpi_limit)
6569                 return NULL;
6570
6571         /*
6572          * First allocate the protocol header region for the port.  The
6573          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
6574          */
6575         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6576         if (!dmabuf)
6577                 return NULL;
6578
6579         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
6580                                            LPFC_HDR_TEMPLATE_SIZE,
6581                                            &dmabuf->phys, GFP_KERNEL);
6582         if (!dmabuf->virt) {
6583                 rpi_hdr = NULL;
6584                 goto err_free_dmabuf;
6585         }
6586
6587         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
6588                 rpi_hdr = NULL;
6589                 goto err_free_coherent;
6590         }
6591
6592         /* Save the rpi header data for cleanup later. */
6593         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6594         if (!rpi_hdr)
6595                 goto err_free_coherent;
6596
6597         rpi_hdr->dmabuf = dmabuf;
6598         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6599         rpi_hdr->page_count = 1;
6600         spin_lock_irq(&phba->hbalock);
6601
6602         /* The rpi_hdr stores the logical index only. */
6603         rpi_hdr->start_rpi = curr_rpi_range;
6604         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
6605         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6606
6607         spin_unlock_irq(&phba->hbalock);
6608         return rpi_hdr;
6609
6610  err_free_coherent:
6611         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6612                           dmabuf->virt, dmabuf->phys);
6613  err_free_dmabuf:
6614         kfree(dmabuf);
6615         return NULL;
6616 }
6617
6618 /**
6619  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6620  * @phba: pointer to lpfc hba data structure.
6621  *
6622  * This routine is invoked to remove all memory resources allocated
6623  * to support rpis for SLI4 ports not supporting extents. This routine
6624  * presumes the caller has released all rpis consumed by fabric or port
6625  * logins and is prepared to have the header pages removed.
6626  **/
6627 void
6628 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6629 {
6630         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6631
6632         if (!phba->sli4_hba.rpi_hdrs_in_use)
6633                 goto exit;
6634
6635         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6636                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6637                 list_del(&rpi_hdr->list);
6638                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6639                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6640                 kfree(rpi_hdr->dmabuf);
6641                 kfree(rpi_hdr);
6642         }
6643  exit:
6644         /* There are no rpis available to the port now. */
6645         phba->sli4_hba.next_rpi = 0;
6646 }
6647
6648 /**
6649  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6650  * @pdev: pointer to pci device data structure.
6651  *
6652  * This routine is invoked to allocate the driver hba data structure for an
6653  * HBA device. If the allocation is successful, the phba reference to the
6654  * PCI device data structure is set.
6655  *
6656  * Return codes
6657  *      pointer to @phba - successful
6658  *      NULL - error
6659  **/
6660 static struct lpfc_hba *
6661 lpfc_hba_alloc(struct pci_dev *pdev)
6662 {
6663         struct lpfc_hba *phba;
6664
6665         /* Allocate memory for HBA structure */
6666         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6667         if (!phba) {
6668                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6669                 return NULL;
6670         }
6671
6672         /* Set reference to PCI device in HBA structure */
6673         phba->pcidev = pdev;
6674
6675         /* Assign an unused board number */
6676         phba->brd_no = lpfc_get_instance();
6677         if (phba->brd_no < 0) {
6678                 kfree(phba);
6679                 return NULL;
6680         }
6681         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
6682
6683         spin_lock_init(&phba->ct_ev_lock);
6684         INIT_LIST_HEAD(&phba->ct_ev_waiters);
6685
6686         return phba;
6687 }
6688
6689 /**
6690  * lpfc_hba_free - Free driver hba data structure with a device.
6691  * @phba: pointer to lpfc hba data structure.
6692  *
6693  * This routine is invoked to free the driver hba data structure with an
6694  * HBA device.
6695  **/
6696 static void
6697 lpfc_hba_free(struct lpfc_hba *phba)
6698 {
6699         /* Release the driver assigned board number */
6700         idr_remove(&lpfc_hba_index, phba->brd_no);
6701
6702         /* Free memory allocated with sli3 rings */
6703         kfree(phba->sli.sli3_ring);
6704         phba->sli.sli3_ring = NULL;
6705
6706         kfree(phba);
6707         return;
6708 }
6709
6710 /**
6711  * lpfc_create_shost - Create hba physical port with associated scsi host.
6712  * @phba: pointer to lpfc hba data structure.
6713  *
6714  * This routine is invoked to create HBA physical port and associate a SCSI
6715  * host with it.
6716  *
6717  * Return codes
6718  *      0 - successful
6719  *      other values - error
6720  **/
6721 static int
6722 lpfc_create_shost(struct lpfc_hba *phba)
6723 {
6724         struct lpfc_vport *vport;
6725         struct Scsi_Host  *shost;
6726
6727         /* Initialize HBA FC structure */
6728         phba->fc_edtov = FF_DEF_EDTOV;
6729         phba->fc_ratov = FF_DEF_RATOV;
6730         phba->fc_altov = FF_DEF_ALTOV;
6731         phba->fc_arbtov = FF_DEF_ARBTOV;
6732
6733         atomic_set(&phba->sdev_cnt, 0);
6734         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6735         if (!vport)
6736                 return -ENODEV;
6737
6738         shost = lpfc_shost_from_vport(vport);
6739         phba->pport = vport;
6740
6741         if (phba->nvmet_support) {
6742                 /* Only 1 vport (pport) will support NVME target */
6743                 if (phba->txrdy_payload_pool == NULL) {
6744                         phba->txrdy_payload_pool = pci_pool_create(
6745                                 "txrdy_pool", phba->pcidev,
6746                                 TXRDY_PAYLOAD_LEN, 16, 0);
6747                         if (phba->txrdy_payload_pool) {
6748                                 phba->targetport = NULL;
6749                                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
6750                                 lpfc_printf_log(phba, KERN_INFO,
6751                                                 LOG_INIT | LOG_NVME_DISC,
6752                                                 "6076 NVME Target Found\n");
6753                         }
6754                 }
6755         }
6756
6757         lpfc_debugfs_initialize(vport);
6758         /* Put reference to SCSI host to driver's device private data */
6759         pci_set_drvdata(phba->pcidev, shost);
6760
6761         /*
6762          * At this point we are fully registered with PSA. In addition,
6763          * any initial discovery should be completed.
6764          */
6765         vport->load_flag |= FC_ALLOW_FDMI;
6766         if (phba->cfg_enable_SmartSAN ||
6767             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
6768
6769                 /* Setup appropriate attribute masks */
6770                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
6771                 if (phba->cfg_enable_SmartSAN)
6772                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
6773                 else
6774                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
6775         }
6776         return 0;
6777 }
6778
6779 /**
6780  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6781  * @phba: pointer to lpfc hba data structure.
6782  *
6783  * This routine is invoked to destroy HBA physical port and the associated
6784  * SCSI host.
6785  **/
6786 static void
6787 lpfc_destroy_shost(struct lpfc_hba *phba)
6788 {
6789         struct lpfc_vport *vport = phba->pport;
6790
6791         /* Destroy physical port that associated with the SCSI host */
6792         destroy_port(vport);
6793
6794         return;
6795 }
6796
6797 /**
6798  * lpfc_setup_bg - Setup Block guard structures and debug areas.
6799  * @phba: pointer to lpfc hba data structure.
6800  * @shost: the shost to be used to detect Block guard settings.
6801  *
6802  * This routine sets up the local Block guard protocol settings for @shost.
6803  * This routine also allocates memory for debugging bg buffers.
6804  **/
6805 static void
6806 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6807 {
6808         uint32_t old_mask;
6809         uint32_t old_guard;
6810
6811         int pagecnt = 10;
6812         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
6813                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6814                                 "1478 Registering BlockGuard with the "
6815                                 "SCSI layer\n");
6816
6817                 old_mask = phba->cfg_prot_mask;
6818                 old_guard = phba->cfg_prot_guard;
6819
6820                 /* Only allow supported values */
6821                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6822                         SHOST_DIX_TYPE0_PROTECTION |
6823                         SHOST_DIX_TYPE1_PROTECTION);
6824                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
6825                                          SHOST_DIX_GUARD_CRC);
6826
6827                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6828                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6829                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6830
6831                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
6832                         if ((old_mask != phba->cfg_prot_mask) ||
6833                                 (old_guard != phba->cfg_prot_guard))
6834                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6835                                         "1475 Registering BlockGuard with the "
6836                                         "SCSI layer: mask %d  guard %d\n",
6837                                         phba->cfg_prot_mask,
6838                                         phba->cfg_prot_guard);
6839
6840                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
6841                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
6842                 } else
6843                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6844                                 "1479 Not Registering BlockGuard with the SCSI "
6845                                 "layer, Bad protection parameters: %d %d\n",
6846                                 old_mask, old_guard);
6847         }
6848
6849         if (!_dump_buf_data) {
6850                 while (pagecnt) {
6851                         spin_lock_init(&_dump_buf_lock);
6852                         _dump_buf_data =
6853                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6854                         if (_dump_buf_data) {
6855                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6856                                         "9043 BLKGRD: allocated %d pages for "
6857                                        "_dump_buf_data at 0x%p\n",
6858                                        (1 << pagecnt), _dump_buf_data);
6859                                 _dump_buf_data_order = pagecnt;
6860                                 memset(_dump_buf_data, 0,
6861                                        ((1 << PAGE_SHIFT) << pagecnt));
6862                                 break;
6863                         } else
6864                                 --pagecnt;
6865                 }
6866                 if (!_dump_buf_data_order)
6867                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6868                                 "9044 BLKGRD: ERROR unable to allocate "
6869                                "memory for hexdump\n");
6870         } else
6871                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6872                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6873                        "\n", _dump_buf_data);
6874         if (!_dump_buf_dif) {
6875                 while (pagecnt) {
6876                         _dump_buf_dif =
6877                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6878                         if (_dump_buf_dif) {
6879                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6880                                         "9046 BLKGRD: allocated %d pages for "
6881                                        "_dump_buf_dif at 0x%p\n",
6882                                        (1 << pagecnt), _dump_buf_dif);
6883                                 _dump_buf_dif_order = pagecnt;
6884                                 memset(_dump_buf_dif, 0,
6885                                        ((1 << PAGE_SHIFT) << pagecnt));
6886                                 break;
6887                         } else
6888                                 --pagecnt;
6889                 }
6890                 if (!_dump_buf_dif_order)
6891                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6892                         "9047 BLKGRD: ERROR unable to allocate "
6893                                "memory for hexdump\n");
6894         } else
6895                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6896                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6897                        _dump_buf_dif);
6898 }
6899
6900 /**
6901  * lpfc_post_init_setup - Perform necessary device post initialization setup.
6902  * @phba: pointer to lpfc hba data structure.
6903  *
6904  * This routine is invoked to perform all the necessary post initialization
6905  * setup for the device.
6906  **/
6907 static void
6908 lpfc_post_init_setup(struct lpfc_hba *phba)
6909 {
6910         struct Scsi_Host  *shost;
6911         struct lpfc_adapter_event_header adapter_event;
6912
6913         /* Get the default values for Model Name and Description */
6914         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6915
6916         /*
6917          * hba setup may have changed the hba_queue_depth so we need to
6918          * adjust the value of can_queue.
6919          */
6920         shost = pci_get_drvdata(phba->pcidev);
6921         shost->can_queue = phba->cfg_hba_queue_depth - 10;
6922         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6923                 lpfc_setup_bg(phba, shost);
6924
6925         lpfc_host_attrib_init(shost);
6926
6927         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6928                 spin_lock_irq(shost->host_lock);
6929                 lpfc_poll_start_timer(phba);
6930                 spin_unlock_irq(shost->host_lock);
6931         }
6932
6933         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6934                         "0428 Perform SCSI scan\n");
6935         /* Send board arrival event to upper layer */
6936         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6937         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6938         fc_host_post_vendor_event(shost, fc_get_event_number(),
6939                                   sizeof(adapter_event),
6940                                   (char *) &adapter_event,
6941                                   LPFC_NL_VENDOR_ID);
6942         return;
6943 }
6944
6945 /**
6946  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6947  * @phba: pointer to lpfc hba data structure.
6948  *
6949  * This routine is invoked to set up the PCI device memory space for device
6950  * with SLI-3 interface spec.
6951  *
6952  * Return codes
6953  *      0 - successful
6954  *      other values - error
6955  **/
6956 static int
6957 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6958 {
6959         struct pci_dev *pdev;
6960         unsigned long bar0map_len, bar2map_len;
6961         int i, hbq_count;
6962         void *ptr;
6963         int error = -ENODEV;
6964
6965         /* Obtain PCI device reference */
6966         if (!phba->pcidev)
6967                 return error;
6968         else
6969                 pdev = phba->pcidev;
6970
6971         /* Set the device DMA mask size */
6972         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6973          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6974                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6975                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6976                         return error;
6977                 }
6978         }
6979
6980         /* Get the bus address of Bar0 and Bar2 and the number of bytes
6981          * required by each mapping.
6982          */
6983         phba->pci_bar0_map = pci_resource_start(pdev, 0);
6984         bar0map_len = pci_resource_len(pdev, 0);
6985
6986         phba->pci_bar2_map = pci_resource_start(pdev, 2);
6987         bar2map_len = pci_resource_len(pdev, 2);
6988
6989         /* Map HBA SLIM to a kernel virtual address. */
6990         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6991         if (!phba->slim_memmap_p) {
6992                 dev_printk(KERN_ERR, &pdev->dev,
6993                            "ioremap failed for SLIM memory.\n");
6994                 goto out;
6995         }
6996
6997         /* Map HBA Control Registers to a kernel virtual address. */
6998         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6999         if (!phba->ctrl_regs_memmap_p) {
7000                 dev_printk(KERN_ERR, &pdev->dev,
7001                            "ioremap failed for HBA control registers.\n");
7002                 goto out_iounmap_slim;
7003         }
7004
7005         /* Allocate memory for SLI-2 structures */
7006         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7007                                                 &phba->slim2p.phys, GFP_KERNEL);
7008         if (!phba->slim2p.virt)
7009                 goto out_iounmap;
7010
7011         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7012         phba->mbox_ext = (phba->slim2p.virt +
7013                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7014         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7015         phba->IOCBs = (phba->slim2p.virt +
7016                        offsetof(struct lpfc_sli2_slim, IOCBs));
7017
7018         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7019                                                  lpfc_sli_hbq_size(),
7020                                                  &phba->hbqslimp.phys,
7021                                                  GFP_KERNEL);
7022         if (!phba->hbqslimp.virt)
7023                 goto out_free_slim;
7024
7025         hbq_count = lpfc_sli_hbq_count();
7026         ptr = phba->hbqslimp.virt;
7027         for (i = 0; i < hbq_count; ++i) {
7028                 phba->hbqs[i].hbq_virt = ptr;
7029                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7030                 ptr += (lpfc_hbq_defs[i]->entry_count *
7031                         sizeof(struct lpfc_hbq_entry));
7032         }
7033         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7034         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7035
7036         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7037
7038         phba->MBslimaddr = phba->slim_memmap_p;
7039         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7040         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7041         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7042         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7043
7044         return 0;
7045
7046 out_free_slim:
7047         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7048                           phba->slim2p.virt, phba->slim2p.phys);
7049 out_iounmap:
7050         iounmap(phba->ctrl_regs_memmap_p);
7051 out_iounmap_slim:
7052         iounmap(phba->slim_memmap_p);
7053 out:
7054         return error;
7055 }
7056
7057 /**
7058  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7059  * @phba: pointer to lpfc hba data structure.
7060  *
7061  * This routine is invoked to unset the PCI device memory space for device
7062  * with SLI-3 interface spec.
7063  **/
7064 static void
7065 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7066 {
7067         struct pci_dev *pdev;
7068
7069         /* Obtain PCI device reference */
7070         if (!phba->pcidev)
7071                 return;
7072         else
7073                 pdev = phba->pcidev;
7074
7075         /* Free coherent DMA memory allocated */
7076         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7077                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7078         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7079                           phba->slim2p.virt, phba->slim2p.phys);
7080
7081         /* I/O memory unmap */
7082         iounmap(phba->ctrl_regs_memmap_p);
7083         iounmap(phba->slim_memmap_p);
7084
7085         return;
7086 }
7087
7088 /**
7089  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7090  * @phba: pointer to lpfc hba data structure.
7091  *
7092  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7093  * done and check status.
7094  *
7095  * Return 0 if successful, otherwise -ENODEV.
7096  **/
7097 int
7098 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7099 {
7100         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7101         struct lpfc_register reg_data;
7102         int i, port_error = 0;
7103         uint32_t if_type;
7104
7105         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7106         memset(&reg_data, 0, sizeof(reg_data));
7107         if (!phba->sli4_hba.PSMPHRregaddr)
7108                 return -ENODEV;
7109
7110         /* Wait up to 30 seconds for the SLI Port POST done and ready */
7111         for (i = 0; i < 3000; i++) {
7112                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7113                         &portsmphr_reg.word0) ||
7114                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7115                         /* Port has a fatal POST error, break out */
7116                         port_error = -ENODEV;
7117                         break;
7118                 }
7119                 if (LPFC_POST_STAGE_PORT_READY ==
7120                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7121                         break;
7122                 msleep(10);
7123         }
7124
7125         /*
7126          * If there was a port error during POST, then don't proceed with
7127          * other register reads as the data may not be valid.  Just exit.
7128          */
7129         if (port_error) {
7130                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7131                         "1408 Port Failed POST - portsmphr=0x%x, "
7132                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7133                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7134                         portsmphr_reg.word0,
7135                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7136                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7137                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7138                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7139                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7140                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7141                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7142                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7143         } else {
7144                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7145                                 "2534 Device Info: SLIFamily=0x%x, "
7146                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7147                                 "SLIHint_2=0x%x, FT=0x%x\n",
7148                                 bf_get(lpfc_sli_intf_sli_family,
7149                                        &phba->sli4_hba.sli_intf),
7150                                 bf_get(lpfc_sli_intf_slirev,
7151                                        &phba->sli4_hba.sli_intf),
7152                                 bf_get(lpfc_sli_intf_if_type,
7153                                        &phba->sli4_hba.sli_intf),
7154                                 bf_get(lpfc_sli_intf_sli_hint1,
7155                                        &phba->sli4_hba.sli_intf),
7156                                 bf_get(lpfc_sli_intf_sli_hint2,
7157                                        &phba->sli4_hba.sli_intf),
7158                                 bf_get(lpfc_sli_intf_func_type,
7159                                        &phba->sli4_hba.sli_intf));
7160                 /*
7161                  * Check for other Port errors during the initialization
7162                  * process.  Fail the load if the port did not come up
7163                  * correctly.
7164                  */
7165                 if_type = bf_get(lpfc_sli_intf_if_type,
7166                                  &phba->sli4_hba.sli_intf);
7167                 switch (if_type) {
7168                 case LPFC_SLI_INTF_IF_TYPE_0:
7169                         phba->sli4_hba.ue_mask_lo =
7170                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7171                         phba->sli4_hba.ue_mask_hi =
7172                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7173                         uerrlo_reg.word0 =
7174                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7175                         uerrhi_reg.word0 =
7176                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7177                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7178                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7179                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7180                                                 "1422 Unrecoverable Error "
7181                                                 "Detected during POST "
7182                                                 "uerr_lo_reg=0x%x, "
7183                                                 "uerr_hi_reg=0x%x, "
7184                                                 "ue_mask_lo_reg=0x%x, "
7185                                                 "ue_mask_hi_reg=0x%x\n",
7186                                                 uerrlo_reg.word0,
7187                                                 uerrhi_reg.word0,
7188                                                 phba->sli4_hba.ue_mask_lo,
7189                                                 phba->sli4_hba.ue_mask_hi);
7190                                 port_error = -ENODEV;
7191                         }
7192                         break;
7193                 case LPFC_SLI_INTF_IF_TYPE_2:
7194                         /* Final checks.  The port status should be clean. */
7195                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7196                                 &reg_data.word0) ||
7197                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
7198                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
7199                                 phba->work_status[0] =
7200                                         readl(phba->sli4_hba.u.if_type2.
7201                                               ERR1regaddr);
7202                                 phba->work_status[1] =
7203                                         readl(phba->sli4_hba.u.if_type2.
7204                                               ERR2regaddr);
7205                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7206                                         "2888 Unrecoverable port error "
7207                                         "following POST: port status reg "
7208                                         "0x%x, port_smphr reg 0x%x, "
7209                                         "error 1=0x%x, error 2=0x%x\n",
7210                                         reg_data.word0,
7211                                         portsmphr_reg.word0,
7212                                         phba->work_status[0],
7213                                         phba->work_status[1]);
7214                                 port_error = -ENODEV;
7215                         }
7216                         break;
7217                 case LPFC_SLI_INTF_IF_TYPE_1:
7218                 default:
7219                         break;
7220                 }
7221         }
7222         return port_error;
7223 }
7224
7225 /**
7226  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
7227  * @phba: pointer to lpfc hba data structure.
7228  * @if_type:  The SLI4 interface type getting configured.
7229  *
7230  * This routine is invoked to set up SLI4 BAR0 PCI config space register
7231  * memory map.
7232  **/
7233 static void
7234 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7235 {
7236         switch (if_type) {
7237         case LPFC_SLI_INTF_IF_TYPE_0:
7238                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
7239                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
7240                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
7241                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
7242                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
7243                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
7244                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
7245                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
7246                 phba->sli4_hba.SLIINTFregaddr =
7247                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7248                 break;
7249         case LPFC_SLI_INTF_IF_TYPE_2:
7250                 phba->sli4_hba.u.if_type2.ERR1regaddr =
7251                         phba->sli4_hba.conf_regs_memmap_p +
7252                                                 LPFC_CTL_PORT_ER1_OFFSET;
7253                 phba->sli4_hba.u.if_type2.ERR2regaddr =
7254                         phba->sli4_hba.conf_regs_memmap_p +
7255                                                 LPFC_CTL_PORT_ER2_OFFSET;
7256                 phba->sli4_hba.u.if_type2.CTRLregaddr =
7257                         phba->sli4_hba.conf_regs_memmap_p +
7258                                                 LPFC_CTL_PORT_CTL_OFFSET;
7259                 phba->sli4_hba.u.if_type2.STATUSregaddr =
7260                         phba->sli4_hba.conf_regs_memmap_p +
7261                                                 LPFC_CTL_PORT_STA_OFFSET;
7262                 phba->sli4_hba.SLIINTFregaddr =
7263                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7264                 phba->sli4_hba.PSMPHRregaddr =
7265                         phba->sli4_hba.conf_regs_memmap_p +
7266                                                 LPFC_CTL_PORT_SEM_OFFSET;
7267                 phba->sli4_hba.RQDBregaddr =
7268                         phba->sli4_hba.conf_regs_memmap_p +
7269                                                 LPFC_ULP0_RQ_DOORBELL;
7270                 phba->sli4_hba.WQDBregaddr =
7271                         phba->sli4_hba.conf_regs_memmap_p +
7272                                                 LPFC_ULP0_WQ_DOORBELL;
7273                 phba->sli4_hba.EQCQDBregaddr =
7274                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
7275                 phba->sli4_hba.MQDBregaddr =
7276                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
7277                 phba->sli4_hba.BMBXregaddr =
7278                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
7279                 break;
7280         case LPFC_SLI_INTF_IF_TYPE_1:
7281         default:
7282                 dev_printk(KERN_ERR, &phba->pcidev->dev,
7283                            "FATAL - unsupported SLI4 interface type - %d\n",
7284                            if_type);
7285                 break;
7286         }
7287 }
7288
7289 /**
7290  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
7291  * @phba: pointer to lpfc hba data structure.
7292  *
7293  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
7294  * memory map.
7295  **/
7296 static void
7297 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
7298 {
7299         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7300                 LPFC_SLIPORT_IF0_SMPHR;
7301         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7302                 LPFC_HST_ISR0;
7303         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7304                 LPFC_HST_IMR0;
7305         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7306                 LPFC_HST_ISCR0;
7307 }
7308
7309 /**
7310  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
7311  * @phba: pointer to lpfc hba data structure.
7312  * @vf: virtual function number
7313  *
7314  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
7315  * based on the given viftual function number, @vf.
7316  *
7317  * Return 0 if successful, otherwise -ENODEV.
7318  **/
7319 static int
7320 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
7321 {
7322         if (vf > LPFC_VIR_FUNC_MAX)
7323                 return -ENODEV;
7324
7325         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7326                                 vf * LPFC_VFR_PAGE_SIZE +
7327                                         LPFC_ULP0_RQ_DOORBELL);
7328         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7329                                 vf * LPFC_VFR_PAGE_SIZE +
7330                                         LPFC_ULP0_WQ_DOORBELL);
7331         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7332                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
7333         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7334                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
7335         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7336                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
7337         return 0;
7338 }
7339
7340 /**
7341  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
7342  * @phba: pointer to lpfc hba data structure.
7343  *
7344  * This routine is invoked to create the bootstrap mailbox
7345  * region consistent with the SLI-4 interface spec.  This
7346  * routine allocates all memory necessary to communicate
7347  * mailbox commands to the port and sets up all alignment
7348  * needs.  No locks are expected to be held when calling
7349  * this routine.
7350  *
7351  * Return codes
7352  *      0 - successful
7353  *      -ENOMEM - could not allocated memory.
7354  **/
7355 static int
7356 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
7357 {
7358         uint32_t bmbx_size;
7359         struct lpfc_dmabuf *dmabuf;
7360         struct dma_address *dma_address;
7361         uint32_t pa_addr;
7362         uint64_t phys_addr;
7363
7364         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7365         if (!dmabuf)
7366                 return -ENOMEM;
7367
7368         /*
7369          * The bootstrap mailbox region is comprised of 2 parts
7370          * plus an alignment restriction of 16 bytes.
7371          */
7372         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
7373         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
7374                                            &dmabuf->phys, GFP_KERNEL);
7375         if (!dmabuf->virt) {
7376                 kfree(dmabuf);
7377                 return -ENOMEM;
7378         }
7379
7380         /*
7381          * Initialize the bootstrap mailbox pointers now so that the register
7382          * operations are simple later.  The mailbox dma address is required
7383          * to be 16-byte aligned.  Also align the virtual memory as each
7384          * maibox is copied into the bmbx mailbox region before issuing the
7385          * command to the port.
7386          */
7387         phba->sli4_hba.bmbx.dmabuf = dmabuf;
7388         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
7389
7390         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
7391                                               LPFC_ALIGN_16_BYTE);
7392         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
7393                                               LPFC_ALIGN_16_BYTE);
7394
7395         /*
7396          * Set the high and low physical addresses now.  The SLI4 alignment
7397          * requirement is 16 bytes and the mailbox is posted to the port
7398          * as two 30-bit addresses.  The other data is a bit marking whether
7399          * the 30-bit address is the high or low address.
7400          * Upcast bmbx aphys to 64bits so shift instruction compiles
7401          * clean on 32 bit machines.
7402          */
7403         dma_address = &phba->sli4_hba.bmbx.dma_address;
7404         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
7405         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
7406         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
7407                                            LPFC_BMBX_BIT1_ADDR_HI);
7408
7409         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
7410         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
7411                                            LPFC_BMBX_BIT1_ADDR_LO);
7412         return 0;
7413 }
7414
7415 /**
7416  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
7417  * @phba: pointer to lpfc hba data structure.
7418  *
7419  * This routine is invoked to teardown the bootstrap mailbox
7420  * region and release all host resources. This routine requires
7421  * the caller to ensure all mailbox commands recovered, no
7422  * additional mailbox comands are sent, and interrupts are disabled
7423  * before calling this routine.
7424  *
7425  **/
7426 static void
7427 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
7428 {
7429         dma_free_coherent(&phba->pcidev->dev,
7430                           phba->sli4_hba.bmbx.bmbx_size,
7431                           phba->sli4_hba.bmbx.dmabuf->virt,
7432                           phba->sli4_hba.bmbx.dmabuf->phys);
7433
7434         kfree(phba->sli4_hba.bmbx.dmabuf);
7435         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
7436 }
7437
7438 /**
7439  * lpfc_sli4_read_config - Get the config parameters.
7440  * @phba: pointer to lpfc hba data structure.
7441  *
7442  * This routine is invoked to read the configuration parameters from the HBA.
7443  * The configuration parameters are used to set the base and maximum values
7444  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
7445  * allocation for the port.
7446  *
7447  * Return codes
7448  *      0 - successful
7449  *      -ENOMEM - No available memory
7450  *      -EIO - The mailbox failed to complete successfully.
7451  **/
7452 int
7453 lpfc_sli4_read_config(struct lpfc_hba *phba)
7454 {
7455         LPFC_MBOXQ_t *pmb;
7456         struct lpfc_mbx_read_config *rd_config;
7457         union  lpfc_sli4_cfg_shdr *shdr;
7458         uint32_t shdr_status, shdr_add_status;
7459         struct lpfc_mbx_get_func_cfg *get_func_cfg;
7460         struct lpfc_rsrc_desc_fcfcoe *desc;
7461         char *pdesc_0;
7462         uint16_t forced_link_speed;
7463         uint32_t if_type;
7464         int length, i, rc = 0, rc2;
7465
7466         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7467         if (!pmb) {
7468                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7469                                 "2011 Unable to allocate memory for issuing "
7470                                 "SLI_CONFIG_SPECIAL mailbox command\n");
7471                 return -ENOMEM;
7472         }
7473
7474         lpfc_read_config(phba, pmb);
7475
7476         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7477         if (rc != MBX_SUCCESS) {
7478                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7479                         "2012 Mailbox failed , mbxCmd x%x "
7480                         "READ_CONFIG, mbxStatus x%x\n",
7481                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
7482                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
7483                 rc = -EIO;
7484         } else {
7485                 rd_config = &pmb->u.mqe.un.rd_config;
7486                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
7487                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
7488                         phba->sli4_hba.lnk_info.lnk_tp =
7489                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
7490                         phba->sli4_hba.lnk_info.lnk_no =
7491                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
7492                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7493                                         "3081 lnk_type:%d, lnk_numb:%d\n",
7494                                         phba->sli4_hba.lnk_info.lnk_tp,
7495                                         phba->sli4_hba.lnk_info.lnk_no);
7496                 } else
7497                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
7498                                         "3082 Mailbox (x%x) returned ldv:x0\n",
7499                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
7500                 phba->sli4_hba.extents_in_use =
7501                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
7502                 phba->sli4_hba.max_cfg_param.max_xri =
7503                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
7504                 phba->sli4_hba.max_cfg_param.xri_base =
7505                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
7506                 phba->sli4_hba.max_cfg_param.max_vpi =
7507                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
7508                 phba->sli4_hba.max_cfg_param.vpi_base =
7509                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
7510                 phba->sli4_hba.max_cfg_param.max_rpi =
7511                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
7512                 phba->sli4_hba.max_cfg_param.rpi_base =
7513                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
7514                 phba->sli4_hba.max_cfg_param.max_vfi =
7515                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
7516                 phba->sli4_hba.max_cfg_param.vfi_base =
7517                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
7518                 phba->sli4_hba.max_cfg_param.max_fcfi =
7519                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
7520                 phba->sli4_hba.max_cfg_param.max_eq =
7521                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
7522                 phba->sli4_hba.max_cfg_param.max_rq =
7523                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
7524                 phba->sli4_hba.max_cfg_param.max_wq =
7525                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
7526                 phba->sli4_hba.max_cfg_param.max_cq =
7527                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
7528                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
7529                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
7530                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
7531                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
7532                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
7533                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
7534                 phba->max_vports = phba->max_vpi;
7535                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7536                                 "2003 cfg params Extents? %d "
7537                                 "XRI(B:%d M:%d), "
7538                                 "VPI(B:%d M:%d) "
7539                                 "VFI(B:%d M:%d) "
7540                                 "RPI(B:%d M:%d) "
7541                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
7542                                 phba->sli4_hba.extents_in_use,
7543                                 phba->sli4_hba.max_cfg_param.xri_base,
7544                                 phba->sli4_hba.max_cfg_param.max_xri,
7545                                 phba->sli4_hba.max_cfg_param.vpi_base,
7546                                 phba->sli4_hba.max_cfg_param.max_vpi,
7547                                 phba->sli4_hba.max_cfg_param.vfi_base,
7548                                 phba->sli4_hba.max_cfg_param.max_vfi,
7549                                 phba->sli4_hba.max_cfg_param.rpi_base,
7550                                 phba->sli4_hba.max_cfg_param.max_rpi,
7551                                 phba->sli4_hba.max_cfg_param.max_fcfi,
7552                                 phba->sli4_hba.max_cfg_param.max_eq,
7553                                 phba->sli4_hba.max_cfg_param.max_cq,
7554                                 phba->sli4_hba.max_cfg_param.max_wq,
7555                                 phba->sli4_hba.max_cfg_param.max_rq);
7556
7557         }
7558
7559         if (rc)
7560                 goto read_cfg_out;
7561
7562         /* Update link speed if forced link speed is supported */
7563         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7564         if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7565                 forced_link_speed =
7566                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
7567                 if (forced_link_speed) {
7568                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
7569
7570                         switch (forced_link_speed) {
7571                         case LINK_SPEED_1G:
7572                                 phba->cfg_link_speed =
7573                                         LPFC_USER_LINK_SPEED_1G;
7574                                 break;
7575                         case LINK_SPEED_2G:
7576                                 phba->cfg_link_speed =
7577                                         LPFC_USER_LINK_SPEED_2G;
7578                                 break;
7579                         case LINK_SPEED_4G:
7580                                 phba->cfg_link_speed =
7581                                         LPFC_USER_LINK_SPEED_4G;
7582                                 break;
7583                         case LINK_SPEED_8G:
7584                                 phba->cfg_link_speed =
7585                                         LPFC_USER_LINK_SPEED_8G;
7586                                 break;
7587                         case LINK_SPEED_10G:
7588                                 phba->cfg_link_speed =
7589                                         LPFC_USER_LINK_SPEED_10G;
7590                                 break;
7591                         case LINK_SPEED_16G:
7592                                 phba->cfg_link_speed =
7593                                         LPFC_USER_LINK_SPEED_16G;
7594                                 break;
7595                         case LINK_SPEED_32G:
7596                                 phba->cfg_link_speed =
7597                                         LPFC_USER_LINK_SPEED_32G;
7598                                 break;
7599                         case 0xffff:
7600                                 phba->cfg_link_speed =
7601                                         LPFC_USER_LINK_SPEED_AUTO;
7602                                 break;
7603                         default:
7604                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7605                                                 "0047 Unrecognized link "
7606                                                 "speed : %d\n",
7607                                                 forced_link_speed);
7608                                 phba->cfg_link_speed =
7609                                         LPFC_USER_LINK_SPEED_AUTO;
7610                         }
7611                 }
7612         }
7613
7614         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
7615         length = phba->sli4_hba.max_cfg_param.max_xri -
7616                         lpfc_sli4_get_els_iocb_cnt(phba);
7617         if (phba->cfg_hba_queue_depth > length) {
7618                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7619                                 "3361 HBA queue depth changed from %d to %d\n",
7620                                 phba->cfg_hba_queue_depth, length);
7621                 phba->cfg_hba_queue_depth = length;
7622         }
7623
7624         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
7625             LPFC_SLI_INTF_IF_TYPE_2)
7626                 goto read_cfg_out;
7627
7628         /* get the pf# and vf# for SLI4 if_type 2 port */
7629         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
7630                   sizeof(struct lpfc_sli4_cfg_mhdr));
7631         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
7632                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
7633                          length, LPFC_SLI4_MBX_EMBED);
7634
7635         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7636         shdr = (union lpfc_sli4_cfg_shdr *)
7637                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
7638         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7639         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7640         if (rc2 || shdr_status || shdr_add_status) {
7641                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7642                                 "3026 Mailbox failed , mbxCmd x%x "
7643                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
7644                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
7645                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
7646                 goto read_cfg_out;
7647         }
7648
7649         /* search for fc_fcoe resrouce descriptor */
7650         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
7651
7652         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
7653         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
7654         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
7655         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
7656                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
7657         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
7658                 goto read_cfg_out;
7659
7660         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
7661                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
7662                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
7663                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
7664                         phba->sli4_hba.iov.pf_number =
7665                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
7666                         phba->sli4_hba.iov.vf_number =
7667                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
7668                         break;
7669                 }
7670         }
7671
7672         if (i < LPFC_RSRC_DESC_MAX_NUM)
7673                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7674                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7675                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7676                                 phba->sli4_hba.iov.vf_number);
7677         else
7678                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7679                                 "3028 GET_FUNCTION_CONFIG: failed to find "
7680                                 "Resrouce Descriptor:x%x\n",
7681                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
7682
7683 read_cfg_out:
7684         mempool_free(pmb, phba->mbox_mem_pool);
7685         return rc;
7686 }
7687
7688 /**
7689  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7690  * @phba: pointer to lpfc hba data structure.
7691  *
7692  * This routine is invoked to setup the port-side endian order when
7693  * the port if_type is 0.  This routine has no function for other
7694  * if_types.
7695  *
7696  * Return codes
7697  *      0 - successful
7698  *      -ENOMEM - No available memory
7699  *      -EIO - The mailbox failed to complete successfully.
7700  **/
7701 static int
7702 lpfc_setup_endian_order(struct lpfc_hba *phba)
7703 {
7704         LPFC_MBOXQ_t *mboxq;
7705         uint32_t if_type, rc = 0;
7706         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7707                                       HOST_ENDIAN_HIGH_WORD1};
7708
7709         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7710         switch (if_type) {
7711         case LPFC_SLI_INTF_IF_TYPE_0:
7712                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7713                                                        GFP_KERNEL);
7714                 if (!mboxq) {
7715                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7716                                         "0492 Unable to allocate memory for "
7717                                         "issuing SLI_CONFIG_SPECIAL mailbox "
7718                                         "command\n");
7719                         return -ENOMEM;
7720                 }
7721
7722                 /*
7723                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7724                  * two words to contain special data values and no other data.
7725                  */
7726                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7727                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7728                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7729                 if (rc != MBX_SUCCESS) {
7730                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7731                                         "0493 SLI_CONFIG_SPECIAL mailbox "
7732                                         "failed with status x%x\n",
7733                                         rc);
7734                         rc = -EIO;
7735                 }
7736                 mempool_free(mboxq, phba->mbox_mem_pool);
7737                 break;
7738         case LPFC_SLI_INTF_IF_TYPE_2:
7739         case LPFC_SLI_INTF_IF_TYPE_1:
7740         default:
7741                 break;
7742         }
7743         return rc;
7744 }
7745
7746 /**
7747  * lpfc_sli4_queue_verify - Verify and update EQ counts
7748  * @phba: pointer to lpfc hba data structure.
7749  *
7750  * This routine is invoked to check the user settable queue counts for EQs.
7751  * After this routine is called the counts will be set to valid values that
7752  * adhere to the constraints of the system's interrupt vectors and the port's
7753  * queue resources.
7754  *
7755  * Return codes
7756  *      0 - successful
7757  *      -ENOMEM - No available memory
7758  **/
7759 static int
7760 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7761 {
7762         int io_channel;
7763         int fof_vectors = phba->cfg_fof ? 1 : 0;
7764
7765         /*
7766          * Sanity check for configured queue parameters against the run-time
7767          * device parameters
7768          */
7769
7770         /* Sanity check on HBA EQ parameters */
7771         io_channel = phba->io_channel_irqs;
7772
7773         if (phba->sli4_hba.num_online_cpu < io_channel) {
7774                 lpfc_printf_log(phba,
7775                                 KERN_ERR, LOG_INIT,
7776                                 "3188 Reducing IO channels to match number of "
7777                                 "online CPUs: from %d to %d\n",
7778                                 io_channel, phba->sli4_hba.num_online_cpu);
7779                 io_channel = phba->sli4_hba.num_online_cpu;
7780         }
7781
7782         if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) {
7783                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7784                                 "2575 Reducing IO channels to match number of "
7785                                 "available EQs: from %d to %d\n",
7786                                 io_channel,
7787                                 phba->sli4_hba.max_cfg_param.max_eq);
7788                 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors;
7789         }
7790
7791         /* The actual number of FCP / NVME event queues adopted */
7792         if (io_channel != phba->io_channel_irqs)
7793                 phba->io_channel_irqs = io_channel;
7794         if (phba->cfg_fcp_io_channel > io_channel)
7795                 phba->cfg_fcp_io_channel = io_channel;
7796         if (phba->cfg_nvme_io_channel > io_channel)
7797                 phba->cfg_nvme_io_channel = io_channel;
7798         if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq)
7799                 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel;
7800
7801         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7802                         "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n",
7803                         phba->io_channel_irqs, phba->cfg_fcp_io_channel,
7804                         phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq);
7805
7806         /* Get EQ depth from module parameter, fake the default for now */
7807         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7808         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7809
7810         /* Get CQ depth from module parameter, fake the default for now */
7811         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7812         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7813         return 0;
7814 }
7815
7816 static int
7817 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx)
7818 {
7819         struct lpfc_queue *qdesc;
7820         int cnt;
7821
7822         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7823                                             phba->sli4_hba.cq_ecount);
7824         if (!qdesc) {
7825                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7826                                 "0508 Failed allocate fast-path NVME CQ (%d)\n",
7827                                 wqidx);
7828                 return 1;
7829         }
7830         phba->sli4_hba.nvme_cq[wqidx] = qdesc;
7831
7832         cnt = LPFC_NVME_WQSIZE;
7833         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_WQE128_SIZE, cnt);
7834         if (!qdesc) {
7835                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7836                                 "0509 Failed allocate fast-path NVME WQ (%d)\n",
7837                                 wqidx);
7838                 return 1;
7839         }
7840         phba->sli4_hba.nvme_wq[wqidx] = qdesc;
7841         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
7842         return 0;
7843 }
7844
7845 static int
7846 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx)
7847 {
7848         struct lpfc_queue *qdesc;
7849         uint32_t wqesize;
7850
7851         /* Create Fast Path FCP CQs */
7852         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7853                                         phba->sli4_hba.cq_ecount);
7854         if (!qdesc) {
7855                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7856                         "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx);
7857                 return 1;
7858         }
7859         phba->sli4_hba.fcp_cq[wqidx] = qdesc;
7860
7861         /* Create Fast Path FCP WQs */
7862         wqesize = (phba->fcp_embed_io) ?
7863                 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
7864         qdesc = lpfc_sli4_queue_alloc(phba, wqesize, phba->sli4_hba.wq_ecount);
7865         if (!qdesc) {
7866                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7867                                 "0503 Failed allocate fast-path FCP WQ (%d)\n",
7868                                 wqidx);
7869                 return 1;
7870         }
7871         phba->sli4_hba.fcp_wq[wqidx] = qdesc;
7872         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
7873         return 0;
7874 }
7875
7876 /**
7877  * lpfc_sli4_queue_create - Create all the SLI4 queues
7878  * @phba: pointer to lpfc hba data structure.
7879  *
7880  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7881  * operation. For each SLI4 queue type, the parameters such as queue entry
7882  * count (queue depth) shall be taken from the module parameter. For now,
7883  * we just use some constant number as place holder.
7884  *
7885  * Return codes
7886  *      0 - successful
7887  *      -ENOMEM - No availble memory
7888  *      -EIO - The mailbox failed to complete successfully.
7889  **/
7890 int
7891 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7892 {
7893         struct lpfc_queue *qdesc;
7894         int idx, io_channel;
7895
7896         /*
7897          * Create HBA Record arrays.
7898          * Both NVME and FCP will share that same vectors / EQs
7899          */
7900         io_channel = phba->io_channel_irqs;
7901         if (!io_channel)
7902                 return -ERANGE;
7903
7904         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7905         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7906         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7907         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7908         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7909         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7910         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7911         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7912         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7913         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7914
7915         phba->sli4_hba.hba_eq =  kcalloc(io_channel,
7916                                         sizeof(struct lpfc_queue *),
7917                                         GFP_KERNEL);
7918         if (!phba->sli4_hba.hba_eq) {
7919                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7920                         "2576 Failed allocate memory for "
7921                         "fast-path EQ record array\n");
7922                 goto out_error;
7923         }
7924
7925         if (phba->cfg_fcp_io_channel) {
7926                 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel,
7927                                                 sizeof(struct lpfc_queue *),
7928                                                 GFP_KERNEL);
7929                 if (!phba->sli4_hba.fcp_cq) {
7930                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7931                                         "2577 Failed allocate memory for "
7932                                         "fast-path CQ record array\n");
7933                         goto out_error;
7934                 }
7935                 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel,
7936                                                 sizeof(struct lpfc_queue *),
7937                                                 GFP_KERNEL);
7938                 if (!phba->sli4_hba.fcp_wq) {
7939                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7940                                         "2578 Failed allocate memory for "
7941                                         "fast-path FCP WQ record array\n");
7942                         goto out_error;
7943                 }
7944                 /*
7945                  * Since the first EQ can have multiple CQs associated with it,
7946                  * this array is used to quickly see if we have a FCP fast-path
7947                  * CQ match.
7948                  */
7949                 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel,
7950                                                         sizeof(uint16_t),
7951                                                         GFP_KERNEL);
7952                 if (!phba->sli4_hba.fcp_cq_map) {
7953                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7954                                         "2545 Failed allocate memory for "
7955                                         "fast-path CQ map\n");
7956                         goto out_error;
7957                 }
7958         }
7959
7960         if (phba->cfg_nvme_io_channel) {
7961                 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel,
7962                                                 sizeof(struct lpfc_queue *),
7963                                                 GFP_KERNEL);
7964                 if (!phba->sli4_hba.nvme_cq) {
7965                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7966                                         "6077 Failed allocate memory for "
7967                                         "fast-path CQ record array\n");
7968                         goto out_error;
7969                 }
7970
7971                 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel,
7972                                                 sizeof(struct lpfc_queue *),
7973                                                 GFP_KERNEL);
7974                 if (!phba->sli4_hba.nvme_wq) {
7975                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7976                                         "2581 Failed allocate memory for "
7977                                         "fast-path NVME WQ record array\n");
7978                         goto out_error;
7979                 }
7980
7981                 /*
7982                  * Since the first EQ can have multiple CQs associated with it,
7983                  * this array is used to quickly see if we have a NVME fast-path
7984                  * CQ match.
7985                  */
7986                 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel,
7987                                                         sizeof(uint16_t),
7988                                                         GFP_KERNEL);
7989                 if (!phba->sli4_hba.nvme_cq_map) {
7990                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7991                                         "6078 Failed allocate memory for "
7992                                         "fast-path CQ map\n");
7993                         goto out_error;
7994                 }
7995
7996                 if (phba->nvmet_support) {
7997                         phba->sli4_hba.nvmet_cqset = kcalloc(
7998                                         phba->cfg_nvmet_mrq,
7999                                         sizeof(struct lpfc_queue *),
8000                                         GFP_KERNEL);
8001                         if (!phba->sli4_hba.nvmet_cqset) {
8002                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8003                                         "3121 Fail allocate memory for "
8004                                         "fast-path CQ set array\n");
8005                                 goto out_error;
8006                         }
8007                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8008                                         phba->cfg_nvmet_mrq,
8009                                         sizeof(struct lpfc_queue *),
8010                                         GFP_KERNEL);
8011                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
8012                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8013                                         "3122 Fail allocate memory for "
8014                                         "fast-path RQ set hdr array\n");
8015                                 goto out_error;
8016                         }
8017                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
8018                                         phba->cfg_nvmet_mrq,
8019                                         sizeof(struct lpfc_queue *),
8020                                         GFP_KERNEL);
8021                         if (!phba->sli4_hba.nvmet_mrq_data) {
8022                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8023                                         "3124 Fail allocate memory for "
8024                                         "fast-path RQ set data array\n");
8025                                 goto out_error;
8026                         }
8027                 }
8028         }
8029
8030         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8031
8032         /* Create HBA Event Queues (EQs) */
8033         for (idx = 0; idx < io_channel; idx++) {
8034                 /* Create EQs */
8035                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
8036                                               phba->sli4_hba.eq_ecount);
8037                 if (!qdesc) {
8038                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8039                                         "0497 Failed allocate EQ (%d)\n", idx);
8040                         goto out_error;
8041                 }
8042                 phba->sli4_hba.hba_eq[idx] = qdesc;
8043         }
8044
8045         /* FCP and NVME io channels are not required to be balanced */
8046
8047         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8048                 if (lpfc_alloc_fcp_wq_cq(phba, idx))
8049                         goto out_error;
8050
8051         for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++)
8052                 if (lpfc_alloc_nvme_wq_cq(phba, idx))
8053                         goto out_error;
8054
8055         if (phba->nvmet_support) {
8056                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8057                         qdesc = lpfc_sli4_queue_alloc(phba,
8058                                         phba->sli4_hba.cq_esize,
8059                                         phba->sli4_hba.cq_ecount);
8060                         if (!qdesc) {
8061                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8062                                         "3142 Failed allocate NVME "
8063                                         "CQ Set (%d)\n", idx);
8064                                 goto out_error;
8065                         }
8066                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
8067                 }
8068         }
8069
8070         /*
8071          * Create Slow Path Completion Queues (CQs)
8072          */
8073
8074         /* Create slow-path Mailbox Command Complete Queue */
8075         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8076                                       phba->sli4_hba.cq_ecount);
8077         if (!qdesc) {
8078                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8079                                 "0500 Failed allocate slow-path mailbox CQ\n");
8080                 goto out_error;
8081         }
8082         phba->sli4_hba.mbx_cq = qdesc;
8083
8084         /* Create slow-path ELS Complete Queue */
8085         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8086                                       phba->sli4_hba.cq_ecount);
8087         if (!qdesc) {
8088                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8089                                 "0501 Failed allocate slow-path ELS CQ\n");
8090                 goto out_error;
8091         }
8092         phba->sli4_hba.els_cq = qdesc;
8093
8094
8095         /*
8096          * Create Slow Path Work Queues (WQs)
8097          */
8098
8099         /* Create Mailbox Command Queue */
8100
8101         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
8102                                       phba->sli4_hba.mq_ecount);
8103         if (!qdesc) {
8104                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8105                                 "0505 Failed allocate slow-path MQ\n");
8106                 goto out_error;
8107         }
8108         phba->sli4_hba.mbx_wq = qdesc;
8109
8110         /*
8111          * Create ELS Work Queues
8112          */
8113
8114         /* Create slow-path ELS Work Queue */
8115         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
8116                                       phba->sli4_hba.wq_ecount);
8117         if (!qdesc) {
8118                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8119                                 "0504 Failed allocate slow-path ELS WQ\n");
8120                 goto out_error;
8121         }
8122         phba->sli4_hba.els_wq = qdesc;
8123         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8124
8125         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8126                 /* Create NVME LS Complete Queue */
8127                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8128                                               phba->sli4_hba.cq_ecount);
8129                 if (!qdesc) {
8130                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8131                                         "6079 Failed allocate NVME LS CQ\n");
8132                         goto out_error;
8133                 }
8134                 phba->sli4_hba.nvmels_cq = qdesc;
8135
8136                 /* Create NVME LS Work Queue */
8137                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
8138                                               phba->sli4_hba.wq_ecount);
8139                 if (!qdesc) {
8140                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8141                                         "6080 Failed allocate NVME LS WQ\n");
8142                         goto out_error;
8143                 }
8144                 phba->sli4_hba.nvmels_wq = qdesc;
8145                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8146         }
8147
8148         /*
8149          * Create Receive Queue (RQ)
8150          */
8151
8152         /* Create Receive Queue for header */
8153         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
8154                                       phba->sli4_hba.rq_ecount);
8155         if (!qdesc) {
8156                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8157                                 "0506 Failed allocate receive HRQ\n");
8158                 goto out_error;
8159         }
8160         phba->sli4_hba.hdr_rq = qdesc;
8161
8162         /* Create Receive Queue for data */
8163         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
8164                                       phba->sli4_hba.rq_ecount);
8165         if (!qdesc) {
8166                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8167                                 "0507 Failed allocate receive DRQ\n");
8168                 goto out_error;
8169         }
8170         phba->sli4_hba.dat_rq = qdesc;
8171
8172         if (phba->nvmet_support) {
8173                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8174                         /* Create NVMET Receive Queue for header */
8175                         qdesc = lpfc_sli4_queue_alloc(phba,
8176                                                       phba->sli4_hba.rq_esize,
8177                                                       LPFC_NVMET_RQE_DEF_COUNT);
8178                         if (!qdesc) {
8179                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8180                                                 "3146 Failed allocate "
8181                                                 "receive HRQ\n");
8182                                 goto out_error;
8183                         }
8184                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
8185
8186                         /* Only needed for header of RQ pair */
8187                         qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb),
8188                                               GFP_KERNEL);
8189                         if (qdesc->rqbp == NULL) {
8190                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8191                                                 "6131 Failed allocate "
8192                                                 "Header RQBP\n");
8193                                 goto out_error;
8194                         }
8195
8196                         /* Create NVMET Receive Queue for data */
8197                         qdesc = lpfc_sli4_queue_alloc(phba,
8198                                                       phba->sli4_hba.rq_esize,
8199                                                       LPFC_NVMET_RQE_DEF_COUNT);
8200                         if (!qdesc) {
8201                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8202                                                 "3156 Failed allocate "
8203                                                 "receive DRQ\n");
8204                                 goto out_error;
8205                         }
8206                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
8207                 }
8208         }
8209
8210         /* Create the Queues needed for Flash Optimized Fabric operations */
8211         if (phba->cfg_fof)
8212                 lpfc_fof_queue_create(phba);
8213         return 0;
8214
8215 out_error:
8216         lpfc_sli4_queue_destroy(phba);
8217         return -ENOMEM;
8218 }
8219
8220 static inline void
8221 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
8222 {
8223         if (*qp != NULL) {
8224                 lpfc_sli4_queue_free(*qp);
8225                 *qp = NULL;
8226         }
8227 }
8228
8229 static inline void
8230 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
8231 {
8232         int idx;
8233
8234         if (*qs == NULL)
8235                 return;
8236
8237         for (idx = 0; idx < max; idx++)
8238                 __lpfc_sli4_release_queue(&(*qs)[idx]);
8239
8240         kfree(*qs);
8241         *qs = NULL;
8242 }
8243
8244 static inline void
8245 lpfc_sli4_release_queue_map(uint16_t **qmap)
8246 {
8247         if (*qmap != NULL) {
8248                 kfree(*qmap);
8249                 *qmap = NULL;
8250         }
8251 }
8252
8253 /**
8254  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
8255  * @phba: pointer to lpfc hba data structure.
8256  *
8257  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
8258  * operation.
8259  *
8260  * Return codes
8261  *      0 - successful
8262  *      -ENOMEM - No available memory
8263  *      -EIO - The mailbox failed to complete successfully.
8264  **/
8265 void
8266 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
8267 {
8268         if (phba->cfg_fof)
8269                 lpfc_fof_queue_destroy(phba);
8270
8271         /* Release HBA eqs */
8272         lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs);
8273
8274         /* Release FCP cqs */
8275         lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq,
8276                                  phba->cfg_fcp_io_channel);
8277
8278         /* Release FCP wqs */
8279         lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq,
8280                                  phba->cfg_fcp_io_channel);
8281
8282         /* Release FCP CQ mapping array */
8283         lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map);
8284
8285         /* Release NVME cqs */
8286         lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq,
8287                                         phba->cfg_nvme_io_channel);
8288
8289         /* Release NVME wqs */
8290         lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq,
8291                                         phba->cfg_nvme_io_channel);
8292
8293         /* Release NVME CQ mapping array */
8294         lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map);
8295
8296         lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
8297                                         phba->cfg_nvmet_mrq);
8298
8299         lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
8300                                         phba->cfg_nvmet_mrq);
8301         lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
8302                                         phba->cfg_nvmet_mrq);
8303
8304         /* Release mailbox command work queue */
8305         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
8306
8307         /* Release ELS work queue */
8308         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
8309
8310         /* Release ELS work queue */
8311         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
8312
8313         /* Release unsolicited receive queue */
8314         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
8315         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
8316
8317         /* Release ELS complete queue */
8318         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
8319
8320         /* Release NVME LS complete queue */
8321         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
8322
8323         /* Release mailbox command complete queue */
8324         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
8325
8326         /* Everything on this list has been freed */
8327         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8328 }
8329
8330 int
8331 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
8332 {
8333         struct lpfc_rqb *rqbp;
8334         struct lpfc_dmabuf *h_buf;
8335         struct rqb_dmabuf *rqb_buffer;
8336
8337         rqbp = rq->rqbp;
8338         while (!list_empty(&rqbp->rqb_buffer_list)) {
8339                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
8340                                  struct lpfc_dmabuf, list);
8341
8342                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
8343                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
8344                 rqbp->buffer_count--;
8345         }
8346         return 1;
8347 }
8348
8349 static int
8350 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
8351         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
8352         int qidx, uint32_t qtype)
8353 {
8354         struct lpfc_sli_ring *pring;
8355         int rc;
8356
8357         if (!eq || !cq || !wq) {
8358                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8359                         "6085 Fast-path %s (%d) not allocated\n",
8360                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
8361                 return -ENOMEM;
8362         }
8363
8364         /* create the Cq first */
8365         rc = lpfc_cq_create(phba, cq, eq,
8366                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
8367         if (rc) {
8368                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8369                         "6086 Failed setup of CQ (%d), rc = 0x%x\n",
8370                         qidx, (uint32_t)rc);
8371                 return rc;
8372         }
8373
8374         if (qtype != LPFC_MBOX) {
8375                 /* Setup nvme_cq_map for fast lookup */
8376                 if (cq_map)
8377                         *cq_map = cq->queue_id;
8378
8379                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8380                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
8381                         qidx, cq->queue_id, qidx, eq->queue_id);
8382
8383                 /* create the wq */
8384                 rc = lpfc_wq_create(phba, wq, cq, qtype);
8385                 if (rc) {
8386                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8387                                 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n",
8388                                 qidx, (uint32_t)rc);
8389                         /* no need to tear down cq - caller will do so */
8390                         return rc;
8391                 }
8392
8393                 /* Bind this CQ/WQ to the NVME ring */
8394                 pring = wq->pring;
8395                 pring->sli.sli4.wqp = (void *)wq;
8396                 cq->pring = pring;
8397
8398                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8399                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
8400                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
8401         } else {
8402                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
8403                 if (rc) {
8404                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8405                                 "0539 Failed setup of slow-path MQ: "
8406                                 "rc = 0x%x\n", rc);
8407                         /* no need to tear down cq - caller will do so */
8408                         return rc;
8409                 }
8410
8411                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8412                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
8413                         phba->sli4_hba.mbx_wq->queue_id,
8414                         phba->sli4_hba.mbx_cq->queue_id);
8415         }
8416
8417         return 0;
8418 }
8419
8420 /**
8421  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
8422  * @phba: pointer to lpfc hba data structure.
8423  *
8424  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
8425  * operation.
8426  *
8427  * Return codes
8428  *      0 - successful
8429  *      -ENOMEM - No available memory
8430  *      -EIO - The mailbox failed to complete successfully.
8431  **/
8432 int
8433 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
8434 {
8435         uint32_t shdr_status, shdr_add_status;
8436         union lpfc_sli4_cfg_shdr *shdr;
8437         LPFC_MBOXQ_t *mboxq;
8438         int qidx;
8439         uint32_t length, io_channel;
8440         int rc = -ENOMEM;
8441
8442         /* Check for dual-ULP support */
8443         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8444         if (!mboxq) {
8445                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8446                                 "3249 Unable to allocate memory for "
8447                                 "QUERY_FW_CFG mailbox command\n");
8448                 return -ENOMEM;
8449         }
8450         length = (sizeof(struct lpfc_mbx_query_fw_config) -
8451                   sizeof(struct lpfc_sli4_cfg_mhdr));
8452         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8453                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
8454                          length, LPFC_SLI4_MBX_EMBED);
8455
8456         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8457
8458         shdr = (union lpfc_sli4_cfg_shdr *)
8459                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8460         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8461         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8462         if (shdr_status || shdr_add_status || rc) {
8463                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8464                                 "3250 QUERY_FW_CFG mailbox failed with status "
8465                                 "x%x add_status x%x, mbx status x%x\n",
8466                                 shdr_status, shdr_add_status, rc);
8467                 if (rc != MBX_TIMEOUT)
8468                         mempool_free(mboxq, phba->mbox_mem_pool);
8469                 rc = -ENXIO;
8470                 goto out_error;
8471         }
8472
8473         phba->sli4_hba.fw_func_mode =
8474                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
8475         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
8476         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
8477         phba->sli4_hba.physical_port =
8478                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
8479         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8480                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
8481                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
8482                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
8483
8484         if (rc != MBX_TIMEOUT)
8485                 mempool_free(mboxq, phba->mbox_mem_pool);
8486
8487         /*
8488          * Set up HBA Event Queues (EQs)
8489          */
8490         io_channel = phba->io_channel_irqs;
8491
8492         /* Set up HBA event queue */
8493         if (io_channel && !phba->sli4_hba.hba_eq) {
8494                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8495                                 "3147 Fast-path EQs not allocated\n");
8496                 rc = -ENOMEM;
8497                 goto out_error;
8498         }
8499         for (qidx = 0; qidx < io_channel; qidx++) {
8500                 if (!phba->sli4_hba.hba_eq[qidx]) {
8501                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8502                                         "0522 Fast-path EQ (%d) not "
8503                                         "allocated\n", qidx);
8504                         rc = -ENOMEM;
8505                         goto out_destroy;
8506                 }
8507                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx],
8508                                                 phba->cfg_fcp_imax);
8509                 if (rc) {
8510                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8511                                         "0523 Failed setup of fast-path EQ "
8512                                         "(%d), rc = 0x%x\n", qidx,
8513                                         (uint32_t)rc);
8514                         goto out_destroy;
8515                 }
8516                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8517                                 "2584 HBA EQ setup: queue[%d]-id=%d\n",
8518                                 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id);
8519         }
8520
8521         if (phba->cfg_nvme_io_channel) {
8522                 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) {
8523                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8524                                 "6084 Fast-path NVME %s array not allocated\n",
8525                                 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ");
8526                         rc = -ENOMEM;
8527                         goto out_destroy;
8528                 }
8529
8530                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) {
8531                         rc = lpfc_create_wq_cq(phba,
8532                                         phba->sli4_hba.hba_eq[
8533                                                 qidx % io_channel],
8534                                         phba->sli4_hba.nvme_cq[qidx],
8535                                         phba->sli4_hba.nvme_wq[qidx],
8536                                         &phba->sli4_hba.nvme_cq_map[qidx],
8537                                         qidx, LPFC_NVME);
8538                         if (rc) {
8539                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8540                                         "6123 Failed to setup fastpath "
8541                                         "NVME WQ/CQ (%d), rc = 0x%x\n",
8542                                         qidx, (uint32_t)rc);
8543                                 goto out_destroy;
8544                         }
8545                 }
8546         }
8547
8548         if (phba->cfg_fcp_io_channel) {
8549                 /* Set up fast-path FCP Response Complete Queue */
8550                 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) {
8551                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8552                                 "3148 Fast-path FCP %s array not allocated\n",
8553                                 phba->sli4_hba.fcp_cq ? "WQ" : "CQ");
8554                         rc = -ENOMEM;
8555                         goto out_destroy;
8556                 }
8557
8558                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) {
8559                         rc = lpfc_create_wq_cq(phba,
8560                                         phba->sli4_hba.hba_eq[
8561                                                 qidx % io_channel],
8562                                         phba->sli4_hba.fcp_cq[qidx],
8563                                         phba->sli4_hba.fcp_wq[qidx],
8564                                         &phba->sli4_hba.fcp_cq_map[qidx],
8565                                         qidx, LPFC_FCP);
8566                         if (rc) {
8567                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8568                                         "0535 Failed to setup fastpath "
8569                                         "FCP WQ/CQ (%d), rc = 0x%x\n",
8570                                         qidx, (uint32_t)rc);
8571                                 goto out_destroy;
8572                         }
8573                 }
8574         }
8575
8576         /*
8577          * Set up Slow Path Complete Queues (CQs)
8578          */
8579
8580         /* Set up slow-path MBOX CQ/MQ */
8581
8582         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
8583                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8584                                 "0528 %s not allocated\n",
8585                                 phba->sli4_hba.mbx_cq ?
8586                                 "Mailbox WQ" : "Mailbox CQ");
8587                 rc = -ENOMEM;
8588                 goto out_destroy;
8589         }
8590
8591         rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8592                                phba->sli4_hba.mbx_cq,
8593                                phba->sli4_hba.mbx_wq,
8594                                NULL, 0, LPFC_MBOX);
8595         if (rc) {
8596                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8597                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
8598                         (uint32_t)rc);
8599                 goto out_destroy;
8600         }
8601         if (phba->nvmet_support) {
8602                 if (!phba->sli4_hba.nvmet_cqset) {
8603                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8604                                         "3165 Fast-path NVME CQ Set "
8605                                         "array not allocated\n");
8606                         rc = -ENOMEM;
8607                         goto out_destroy;
8608                 }
8609                 if (phba->cfg_nvmet_mrq > 1) {
8610                         rc = lpfc_cq_create_set(phba,
8611                                         phba->sli4_hba.nvmet_cqset,
8612                                         phba->sli4_hba.hba_eq,
8613                                         LPFC_WCQ, LPFC_NVMET);
8614                         if (rc) {
8615                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8616                                                 "3164 Failed setup of NVME CQ "
8617                                                 "Set, rc = 0x%x\n",
8618                                                 (uint32_t)rc);
8619                                 goto out_destroy;
8620                         }
8621                 } else {
8622                         /* Set up NVMET Receive Complete Queue */
8623                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
8624                                             phba->sli4_hba.hba_eq[0],
8625                                             LPFC_WCQ, LPFC_NVMET);
8626                         if (rc) {
8627                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8628                                                 "6089 Failed setup NVMET CQ: "
8629                                                 "rc = 0x%x\n", (uint32_t)rc);
8630                                 goto out_destroy;
8631                         }
8632                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8633                                         "6090 NVMET CQ setup: cq-id=%d, "
8634                                         "parent eq-id=%d\n",
8635                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
8636                                         phba->sli4_hba.hba_eq[0]->queue_id);
8637                 }
8638         }
8639
8640         /* Set up slow-path ELS WQ/CQ */
8641         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
8642                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8643                                 "0530 ELS %s not allocated\n",
8644                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
8645                 rc = -ENOMEM;
8646                 goto out_destroy;
8647         }
8648         rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8649                                         phba->sli4_hba.els_cq,
8650                                         phba->sli4_hba.els_wq,
8651                                         NULL, 0, LPFC_ELS);
8652         if (rc) {
8653                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8654                         "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
8655                         (uint32_t)rc);
8656                 goto out_destroy;
8657         }
8658         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8659                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
8660                         phba->sli4_hba.els_wq->queue_id,
8661                         phba->sli4_hba.els_cq->queue_id);
8662
8663         if (phba->cfg_nvme_io_channel) {
8664                 /* Set up NVME LS Complete Queue */
8665                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
8666                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8667                                         "6091 LS %s not allocated\n",
8668                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
8669                         rc = -ENOMEM;
8670                         goto out_destroy;
8671                 }
8672                 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8673                                         phba->sli4_hba.nvmels_cq,
8674                                         phba->sli4_hba.nvmels_wq,
8675                                         NULL, 0, LPFC_NVME_LS);
8676                 if (rc) {
8677                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8678                                 "0529 Failed setup of NVVME LS WQ/CQ: "
8679                                 "rc = 0x%x\n", (uint32_t)rc);
8680                         goto out_destroy;
8681                 }
8682
8683                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8684                                 "6096 ELS WQ setup: wq-id=%d, "
8685                                 "parent cq-id=%d\n",
8686                                 phba->sli4_hba.nvmels_wq->queue_id,
8687                                 phba->sli4_hba.nvmels_cq->queue_id);
8688         }
8689
8690         /*
8691          * Create NVMET Receive Queue (RQ)
8692          */
8693         if (phba->nvmet_support) {
8694                 if ((!phba->sli4_hba.nvmet_cqset) ||
8695                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
8696                     (!phba->sli4_hba.nvmet_mrq_data)) {
8697                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8698                                         "6130 MRQ CQ Queues not "
8699                                         "allocated\n");
8700                         rc = -ENOMEM;
8701                         goto out_destroy;
8702                 }
8703                 if (phba->cfg_nvmet_mrq > 1) {
8704                         rc = lpfc_mrq_create(phba,
8705                                              phba->sli4_hba.nvmet_mrq_hdr,
8706                                              phba->sli4_hba.nvmet_mrq_data,
8707                                              phba->sli4_hba.nvmet_cqset,
8708                                              LPFC_NVMET);
8709                         if (rc) {
8710                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8711                                                 "6098 Failed setup of NVMET "
8712                                                 "MRQ: rc = 0x%x\n",
8713                                                 (uint32_t)rc);
8714                                 goto out_destroy;
8715                         }
8716
8717                 } else {
8718                         rc = lpfc_rq_create(phba,
8719                                             phba->sli4_hba.nvmet_mrq_hdr[0],
8720                                             phba->sli4_hba.nvmet_mrq_data[0],
8721                                             phba->sli4_hba.nvmet_cqset[0],
8722                                             LPFC_NVMET);
8723                         if (rc) {
8724                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8725                                                 "6057 Failed setup of NVMET "
8726                                                 "Receive Queue: rc = 0x%x\n",
8727                                                 (uint32_t)rc);
8728                                 goto out_destroy;
8729                         }
8730
8731                         lpfc_printf_log(
8732                                 phba, KERN_INFO, LOG_INIT,
8733                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
8734                                 "dat-rq-id=%d parent cq-id=%d\n",
8735                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
8736                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
8737                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
8738
8739                 }
8740         }
8741
8742         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
8743                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8744                                 "0540 Receive Queue not allocated\n");
8745                 rc = -ENOMEM;
8746                 goto out_destroy;
8747         }
8748
8749         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
8750                             phba->sli4_hba.els_cq, LPFC_USOL);
8751         if (rc) {
8752                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8753                                 "0541 Failed setup of Receive Queue: "
8754                                 "rc = 0x%x\n", (uint32_t)rc);
8755                 goto out_destroy;
8756         }
8757
8758         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8759                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
8760                         "parent cq-id=%d\n",
8761                         phba->sli4_hba.hdr_rq->queue_id,
8762                         phba->sli4_hba.dat_rq->queue_id,
8763                         phba->sli4_hba.els_cq->queue_id);
8764
8765         if (phba->cfg_fof) {
8766                 rc = lpfc_fof_queue_setup(phba);
8767                 if (rc) {
8768                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8769                                         "0549 Failed setup of FOF Queues: "
8770                                         "rc = 0x%x\n", rc);
8771                         goto out_destroy;
8772                 }
8773         }
8774
8775         for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
8776                 lpfc_modify_hba_eq_delay(phba, qidx);
8777
8778         return 0;
8779
8780 out_destroy:
8781         lpfc_sli4_queue_unset(phba);
8782 out_error:
8783         return rc;
8784 }
8785
8786 /**
8787  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
8788  * @phba: pointer to lpfc hba data structure.
8789  *
8790  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
8791  * operation.
8792  *
8793  * Return codes
8794  *      0 - successful
8795  *      -ENOMEM - No available memory
8796  *      -EIO - The mailbox failed to complete successfully.
8797  **/
8798 void
8799 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
8800 {
8801         int qidx;
8802
8803         /* Unset the queues created for Flash Optimized Fabric operations */
8804         if (phba->cfg_fof)
8805                 lpfc_fof_queue_destroy(phba);
8806
8807         /* Unset mailbox command work queue */
8808         if (phba->sli4_hba.mbx_wq)
8809                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
8810
8811         /* Unset NVME LS work queue */
8812         if (phba->sli4_hba.nvmels_wq)
8813                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
8814
8815         /* Unset ELS work queue */
8816         if (phba->sli4_hba.els_wq)
8817                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
8818
8819         /* Unset unsolicited receive queue */
8820         if (phba->sli4_hba.hdr_rq)
8821                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
8822                                 phba->sli4_hba.dat_rq);
8823
8824         /* Unset FCP work queue */
8825         if (phba->sli4_hba.fcp_wq)
8826                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
8827                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]);
8828
8829         /* Unset NVME work queue */
8830         if (phba->sli4_hba.nvme_wq) {
8831                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
8832                         lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]);
8833         }
8834
8835         /* Unset mailbox command complete queue */
8836         if (phba->sli4_hba.mbx_cq)
8837                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
8838
8839         /* Unset ELS complete queue */
8840         if (phba->sli4_hba.els_cq)
8841                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
8842
8843         /* Unset NVME LS complete queue */
8844         if (phba->sli4_hba.nvmels_cq)
8845                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
8846
8847         /* Unset NVME response complete queue */
8848         if (phba->sli4_hba.nvme_cq)
8849                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
8850                         lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]);
8851
8852         /* Unset NVMET MRQ queue */
8853         if (phba->sli4_hba.nvmet_mrq_hdr) {
8854                 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
8855                         lpfc_rq_destroy(phba,
8856                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
8857                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
8858         }
8859
8860         /* Unset NVMET CQ Set complete queue */
8861         if (phba->sli4_hba.nvmet_cqset) {
8862                 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
8863                         lpfc_cq_destroy(phba,
8864                                         phba->sli4_hba.nvmet_cqset[qidx]);
8865         }
8866
8867         /* Unset FCP response complete queue */
8868         if (phba->sli4_hba.fcp_cq)
8869                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
8870                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]);
8871
8872         /* Unset fast-path event queue */
8873         if (phba->sli4_hba.hba_eq)
8874                 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++)
8875                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]);
8876 }
8877
8878 /**
8879  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
8880  * @phba: pointer to lpfc hba data structure.
8881  *
8882  * This routine is invoked to allocate and set up a pool of completion queue
8883  * events. The body of the completion queue event is a completion queue entry
8884  * CQE. For now, this pool is used for the interrupt service routine to queue
8885  * the following HBA completion queue events for the worker thread to process:
8886  *   - Mailbox asynchronous events
8887  *   - Receive queue completion unsolicited events
8888  * Later, this can be used for all the slow-path events.
8889  *
8890  * Return codes
8891  *      0 - successful
8892  *      -ENOMEM - No available memory
8893  **/
8894 static int
8895 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
8896 {
8897         struct lpfc_cq_event *cq_event;
8898         int i;
8899
8900         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
8901                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
8902                 if (!cq_event)
8903                         goto out_pool_create_fail;
8904                 list_add_tail(&cq_event->list,
8905                               &phba->sli4_hba.sp_cqe_event_pool);
8906         }
8907         return 0;
8908
8909 out_pool_create_fail:
8910         lpfc_sli4_cq_event_pool_destroy(phba);
8911         return -ENOMEM;
8912 }
8913
8914 /**
8915  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
8916  * @phba: pointer to lpfc hba data structure.
8917  *
8918  * This routine is invoked to free the pool of completion queue events at
8919  * driver unload time. Note that, it is the responsibility of the driver
8920  * cleanup routine to free all the outstanding completion-queue events
8921  * allocated from this pool back into the pool before invoking this routine
8922  * to destroy the pool.
8923  **/
8924 static void
8925 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
8926 {
8927         struct lpfc_cq_event *cq_event, *next_cq_event;
8928
8929         list_for_each_entry_safe(cq_event, next_cq_event,
8930                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
8931                 list_del(&cq_event->list);
8932                 kfree(cq_event);
8933         }
8934 }
8935
8936 /**
8937  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
8938  * @phba: pointer to lpfc hba data structure.
8939  *
8940  * This routine is the lock free version of the API invoked to allocate a
8941  * completion-queue event from the free pool.
8942  *
8943  * Return: Pointer to the newly allocated completion-queue event if successful
8944  *         NULL otherwise.
8945  **/
8946 struct lpfc_cq_event *
8947 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
8948 {
8949         struct lpfc_cq_event *cq_event = NULL;
8950
8951         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
8952                          struct lpfc_cq_event, list);
8953         return cq_event;
8954 }
8955
8956 /**
8957  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
8958  * @phba: pointer to lpfc hba data structure.
8959  *
8960  * This routine is the lock version of the API invoked to allocate a
8961  * completion-queue event from the free pool.
8962  *
8963  * Return: Pointer to the newly allocated completion-queue event if successful
8964  *         NULL otherwise.
8965  **/
8966 struct lpfc_cq_event *
8967 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
8968 {
8969         struct lpfc_cq_event *cq_event;
8970         unsigned long iflags;
8971
8972         spin_lock_irqsave(&phba->hbalock, iflags);
8973         cq_event = __lpfc_sli4_cq_event_alloc(phba);
8974         spin_unlock_irqrestore(&phba->hbalock, iflags);
8975         return cq_event;
8976 }
8977
8978 /**
8979  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
8980  * @phba: pointer to lpfc hba data structure.
8981  * @cq_event: pointer to the completion queue event to be freed.
8982  *
8983  * This routine is the lock free version of the API invoked to release a
8984  * completion-queue event back into the free pool.
8985  **/
8986 void
8987 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
8988                              struct lpfc_cq_event *cq_event)
8989 {
8990         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
8991 }
8992
8993 /**
8994  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
8995  * @phba: pointer to lpfc hba data structure.
8996  * @cq_event: pointer to the completion queue event to be freed.
8997  *
8998  * This routine is the lock version of the API invoked to release a
8999  * completion-queue event back into the free pool.
9000  **/
9001 void
9002 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9003                            struct lpfc_cq_event *cq_event)
9004 {
9005         unsigned long iflags;
9006         spin_lock_irqsave(&phba->hbalock, iflags);
9007         __lpfc_sli4_cq_event_release(phba, cq_event);
9008         spin_unlock_irqrestore(&phba->hbalock, iflags);
9009 }
9010
9011 /**
9012  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
9013  * @phba: pointer to lpfc hba data structure.
9014  *
9015  * This routine is to free all the pending completion-queue events to the
9016  * back into the free pool for device reset.
9017  **/
9018 static void
9019 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
9020 {
9021         LIST_HEAD(cqelist);
9022         struct lpfc_cq_event *cqe;
9023         unsigned long iflags;
9024
9025         /* Retrieve all the pending WCQEs from pending WCQE lists */
9026         spin_lock_irqsave(&phba->hbalock, iflags);
9027         /* Pending FCP XRI abort events */
9028         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
9029                          &cqelist);
9030         /* Pending ELS XRI abort events */
9031         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
9032                          &cqelist);
9033         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9034                 /* Pending NVME XRI abort events */
9035                 list_splice_init(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue,
9036                                  &cqelist);
9037         }
9038         /* Pending asynnc events */
9039         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
9040                          &cqelist);
9041         spin_unlock_irqrestore(&phba->hbalock, iflags);
9042
9043         while (!list_empty(&cqelist)) {
9044                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
9045                 lpfc_sli4_cq_event_release(phba, cqe);
9046         }
9047 }
9048
9049 /**
9050  * lpfc_pci_function_reset - Reset pci function.
9051  * @phba: pointer to lpfc hba data structure.
9052  *
9053  * This routine is invoked to request a PCI function reset. It will destroys
9054  * all resources assigned to the PCI function which originates this request.
9055  *
9056  * Return codes
9057  *      0 - successful
9058  *      -ENOMEM - No available memory
9059  *      -EIO - The mailbox failed to complete successfully.
9060  **/
9061 int
9062 lpfc_pci_function_reset(struct lpfc_hba *phba)
9063 {
9064         LPFC_MBOXQ_t *mboxq;
9065         uint32_t rc = 0, if_type;
9066         uint32_t shdr_status, shdr_add_status;
9067         uint32_t rdy_chk;
9068         uint32_t port_reset = 0;
9069         union lpfc_sli4_cfg_shdr *shdr;
9070         struct lpfc_register reg_data;
9071         uint16_t devid;
9072
9073         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9074         switch (if_type) {
9075         case LPFC_SLI_INTF_IF_TYPE_0:
9076                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
9077                                                        GFP_KERNEL);
9078                 if (!mboxq) {
9079                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9080                                         "0494 Unable to allocate memory for "
9081                                         "issuing SLI_FUNCTION_RESET mailbox "
9082                                         "command\n");
9083                         return -ENOMEM;
9084                 }
9085
9086                 /* Setup PCI function reset mailbox-ioctl command */
9087                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9088                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
9089                                  LPFC_SLI4_MBX_EMBED);
9090                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9091                 shdr = (union lpfc_sli4_cfg_shdr *)
9092                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9093                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9094                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
9095                                          &shdr->response);
9096                 if (rc != MBX_TIMEOUT)
9097                         mempool_free(mboxq, phba->mbox_mem_pool);
9098                 if (shdr_status || shdr_add_status || rc) {
9099                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9100                                         "0495 SLI_FUNCTION_RESET mailbox "
9101                                         "failed with status x%x add_status x%x,"
9102                                         " mbx status x%x\n",
9103                                         shdr_status, shdr_add_status, rc);
9104                         rc = -ENXIO;
9105                 }
9106                 break;
9107         case LPFC_SLI_INTF_IF_TYPE_2:
9108 wait:
9109                 /*
9110                  * Poll the Port Status Register and wait for RDY for
9111                  * up to 30 seconds. If the port doesn't respond, treat
9112                  * it as an error.
9113                  */
9114                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
9115                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
9116                                 STATUSregaddr, &reg_data.word0)) {
9117                                 rc = -ENODEV;
9118                                 goto out;
9119                         }
9120                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
9121                                 break;
9122                         msleep(20);
9123                 }
9124
9125                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
9126                         phba->work_status[0] = readl(
9127                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
9128                         phba->work_status[1] = readl(
9129                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
9130                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9131                                         "2890 Port not ready, port status reg "
9132                                         "0x%x error 1=0x%x, error 2=0x%x\n",
9133                                         reg_data.word0,
9134                                         phba->work_status[0],
9135                                         phba->work_status[1]);
9136                         rc = -ENODEV;
9137                         goto out;
9138                 }
9139
9140                 if (!port_reset) {
9141                         /*
9142                          * Reset the port now
9143                          */
9144                         reg_data.word0 = 0;
9145                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
9146                                LPFC_SLIPORT_LITTLE_ENDIAN);
9147                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
9148                                LPFC_SLIPORT_INIT_PORT);
9149                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
9150                                CTRLregaddr);
9151                         /* flush */
9152                         pci_read_config_word(phba->pcidev,
9153                                              PCI_DEVICE_ID, &devid);
9154
9155                         port_reset = 1;
9156                         msleep(20);
9157                         goto wait;
9158                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
9159                         rc = -ENODEV;
9160                         goto out;
9161                 }
9162                 break;
9163
9164         case LPFC_SLI_INTF_IF_TYPE_1:
9165         default:
9166                 break;
9167         }
9168
9169 out:
9170         /* Catch the not-ready port failure after a port reset. */
9171         if (rc) {
9172                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9173                                 "3317 HBA not functional: IP Reset Failed "
9174                                 "try: echo fw_reset > board_mode\n");
9175                 rc = -ENODEV;
9176         }
9177
9178         return rc;
9179 }
9180
9181 /**
9182  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
9183  * @phba: pointer to lpfc hba data structure.
9184  *
9185  * This routine is invoked to set up the PCI device memory space for device
9186  * with SLI-4 interface spec.
9187  *
9188  * Return codes
9189  *      0 - successful
9190  *      other values - error
9191  **/
9192 static int
9193 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
9194 {
9195         struct pci_dev *pdev;
9196         unsigned long bar0map_len, bar1map_len, bar2map_len;
9197         int error = -ENODEV;
9198         uint32_t if_type;
9199
9200         /* Obtain PCI device reference */
9201         if (!phba->pcidev)
9202                 return error;
9203         else
9204                 pdev = phba->pcidev;
9205
9206         /* Set the device DMA mask size */
9207         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
9208          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
9209                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
9210                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
9211                         return error;
9212                 }
9213         }
9214
9215         /*
9216          * The BARs and register set definitions and offset locations are
9217          * dependent on the if_type.
9218          */
9219         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
9220                                   &phba->sli4_hba.sli_intf.word0)) {
9221                 return error;
9222         }
9223
9224         /* There is no SLI3 failback for SLI4 devices. */
9225         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
9226             LPFC_SLI_INTF_VALID) {
9227                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9228                                 "2894 SLI_INTF reg contents invalid "
9229                                 "sli_intf reg 0x%x\n",
9230                                 phba->sli4_hba.sli_intf.word0);
9231                 return error;
9232         }
9233
9234         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9235         /*
9236          * Get the bus address of SLI4 device Bar regions and the
9237          * number of bytes required by each mapping. The mapping of the
9238          * particular PCI BARs regions is dependent on the type of
9239          * SLI4 device.
9240          */
9241         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
9242                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
9243                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
9244
9245                 /*
9246                  * Map SLI4 PCI Config Space Register base to a kernel virtual
9247                  * addr
9248                  */
9249                 phba->sli4_hba.conf_regs_memmap_p =
9250                         ioremap(phba->pci_bar0_map, bar0map_len);
9251                 if (!phba->sli4_hba.conf_regs_memmap_p) {
9252                         dev_printk(KERN_ERR, &pdev->dev,
9253                                    "ioremap failed for SLI4 PCI config "
9254                                    "registers.\n");
9255                         goto out;
9256                 }
9257                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
9258                 /* Set up BAR0 PCI config space register memory map */
9259                 lpfc_sli4_bar0_register_memmap(phba, if_type);
9260         } else {
9261                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
9262                 bar0map_len = pci_resource_len(pdev, 1);
9263                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
9264                         dev_printk(KERN_ERR, &pdev->dev,
9265                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
9266                         goto out;
9267                 }
9268                 phba->sli4_hba.conf_regs_memmap_p =
9269                                 ioremap(phba->pci_bar0_map, bar0map_len);
9270                 if (!phba->sli4_hba.conf_regs_memmap_p) {
9271                         dev_printk(KERN_ERR, &pdev->dev,
9272                                 "ioremap failed for SLI4 PCI config "
9273                                 "registers.\n");
9274                                 goto out;
9275                 }
9276                 lpfc_sli4_bar0_register_memmap(phba, if_type);
9277         }
9278
9279         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
9280             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
9281                 /*
9282                  * Map SLI4 if type 0 HBA Control Register base to a kernel
9283                  * virtual address and setup the registers.
9284                  */
9285                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
9286                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
9287                 phba->sli4_hba.ctrl_regs_memmap_p =
9288                                 ioremap(phba->pci_bar1_map, bar1map_len);
9289                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
9290                         dev_printk(KERN_ERR, &pdev->dev,
9291                            "ioremap failed for SLI4 HBA control registers.\n");
9292                         goto out_iounmap_conf;
9293                 }
9294                 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
9295                 lpfc_sli4_bar1_register_memmap(phba);
9296         }
9297
9298         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
9299             (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
9300                 /*
9301                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
9302                  * virtual address and setup the registers.
9303                  */
9304                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
9305                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
9306                 phba->sli4_hba.drbl_regs_memmap_p =
9307                                 ioremap(phba->pci_bar2_map, bar2map_len);
9308                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
9309                         dev_printk(KERN_ERR, &pdev->dev,
9310                            "ioremap failed for SLI4 HBA doorbell registers.\n");
9311                         goto out_iounmap_ctrl;
9312                 }
9313                 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
9314                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
9315                 if (error)
9316                         goto out_iounmap_all;
9317         }
9318
9319         return 0;
9320
9321 out_iounmap_all:
9322         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9323 out_iounmap_ctrl:
9324         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9325 out_iounmap_conf:
9326         iounmap(phba->sli4_hba.conf_regs_memmap_p);
9327 out:
9328         return error;
9329 }
9330
9331 /**
9332  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
9333  * @phba: pointer to lpfc hba data structure.
9334  *
9335  * This routine is invoked to unset the PCI device memory space for device
9336  * with SLI-4 interface spec.
9337  **/
9338 static void
9339 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
9340 {
9341         uint32_t if_type;
9342         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9343
9344         switch (if_type) {
9345         case LPFC_SLI_INTF_IF_TYPE_0:
9346                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9347                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9348                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9349                 break;
9350         case LPFC_SLI_INTF_IF_TYPE_2:
9351                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9352                 break;
9353         case LPFC_SLI_INTF_IF_TYPE_1:
9354         default:
9355                 dev_printk(KERN_ERR, &phba->pcidev->dev,
9356                            "FATAL - unsupported SLI4 interface type - %d\n",
9357                            if_type);
9358                 break;
9359         }
9360 }
9361
9362 /**
9363  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
9364  * @phba: pointer to lpfc hba data structure.
9365  *
9366  * This routine is invoked to enable the MSI-X interrupt vectors to device
9367  * with SLI-3 interface specs.
9368  *
9369  * Return codes
9370  *   0 - successful
9371  *   other values - error
9372  **/
9373 static int
9374 lpfc_sli_enable_msix(struct lpfc_hba *phba)
9375 {
9376         int rc;
9377         LPFC_MBOXQ_t *pmb;
9378
9379         /* Set up MSI-X multi-message vectors */
9380         rc = pci_alloc_irq_vectors(phba->pcidev,
9381                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
9382         if (rc < 0) {
9383                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9384                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
9385                 goto vec_fail_out;
9386         }
9387
9388         /*
9389          * Assign MSI-X vectors to interrupt handlers
9390          */
9391
9392         /* vector-0 is associated to slow-path handler */
9393         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
9394                          &lpfc_sli_sp_intr_handler, 0,
9395                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
9396         if (rc) {
9397                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9398                                 "0421 MSI-X slow-path request_irq failed "
9399                                 "(%d)\n", rc);
9400                 goto msi_fail_out;
9401         }
9402
9403         /* vector-1 is associated to fast-path handler */
9404         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
9405                          &lpfc_sli_fp_intr_handler, 0,
9406                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
9407
9408         if (rc) {
9409                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9410                                 "0429 MSI-X fast-path request_irq failed "
9411                                 "(%d)\n", rc);
9412                 goto irq_fail_out;
9413         }
9414
9415         /*
9416          * Configure HBA MSI-X attention conditions to messages
9417          */
9418         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9419
9420         if (!pmb) {
9421                 rc = -ENOMEM;
9422                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9423                                 "0474 Unable to allocate memory for issuing "
9424                                 "MBOX_CONFIG_MSI command\n");
9425                 goto mem_fail_out;
9426         }
9427         rc = lpfc_config_msi(phba, pmb);
9428         if (rc)
9429                 goto mbx_fail_out;
9430         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9431         if (rc != MBX_SUCCESS) {
9432                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
9433                                 "0351 Config MSI mailbox command failed, "
9434                                 "mbxCmd x%x, mbxStatus x%x\n",
9435                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
9436                 goto mbx_fail_out;
9437         }
9438
9439         /* Free memory allocated for mailbox command */
9440         mempool_free(pmb, phba->mbox_mem_pool);
9441         return rc;
9442
9443 mbx_fail_out:
9444         /* Free memory allocated for mailbox command */
9445         mempool_free(pmb, phba->mbox_mem_pool);
9446
9447 mem_fail_out:
9448         /* free the irq already requested */
9449         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
9450
9451 irq_fail_out:
9452         /* free the irq already requested */
9453         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
9454
9455 msi_fail_out:
9456         /* Unconfigure MSI-X capability structure */
9457         pci_free_irq_vectors(phba->pcidev);
9458
9459 vec_fail_out:
9460         return rc;
9461 }
9462
9463 /**
9464  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
9465  * @phba: pointer to lpfc hba data structure.
9466  *
9467  * This routine is invoked to enable the MSI interrupt mode to device with
9468  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
9469  * enable the MSI vector. The device driver is responsible for calling the
9470  * request_irq() to register MSI vector with a interrupt the handler, which
9471  * is done in this function.
9472  *
9473  * Return codes
9474  *      0 - successful
9475  *      other values - error
9476  */
9477 static int
9478 lpfc_sli_enable_msi(struct lpfc_hba *phba)
9479 {
9480         int rc;
9481
9482         rc = pci_enable_msi(phba->pcidev);
9483         if (!rc)
9484                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9485                                 "0462 PCI enable MSI mode success.\n");
9486         else {
9487                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9488                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
9489                 return rc;
9490         }
9491
9492         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9493                          0, LPFC_DRIVER_NAME, phba);
9494         if (rc) {
9495                 pci_disable_msi(phba->pcidev);
9496                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9497                                 "0478 MSI request_irq failed (%d)\n", rc);
9498         }
9499         return rc;
9500 }
9501
9502 /**
9503  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
9504  * @phba: pointer to lpfc hba data structure.
9505  *
9506  * This routine is invoked to enable device interrupt and associate driver's
9507  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
9508  * spec. Depends on the interrupt mode configured to the driver, the driver
9509  * will try to fallback from the configured interrupt mode to an interrupt
9510  * mode which is supported by the platform, kernel, and device in the order
9511  * of:
9512  * MSI-X -> MSI -> IRQ.
9513  *
9514  * Return codes
9515  *   0 - successful
9516  *   other values - error
9517  **/
9518 static uint32_t
9519 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9520 {
9521         uint32_t intr_mode = LPFC_INTR_ERROR;
9522         int retval;
9523
9524         if (cfg_mode == 2) {
9525                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
9526                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
9527                 if (!retval) {
9528                         /* Now, try to enable MSI-X interrupt mode */
9529                         retval = lpfc_sli_enable_msix(phba);
9530                         if (!retval) {
9531                                 /* Indicate initialization to MSI-X mode */
9532                                 phba->intr_type = MSIX;
9533                                 intr_mode = 2;
9534                         }
9535                 }
9536         }
9537
9538         /* Fallback to MSI if MSI-X initialization failed */
9539         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9540                 retval = lpfc_sli_enable_msi(phba);
9541                 if (!retval) {
9542                         /* Indicate initialization to MSI mode */
9543                         phba->intr_type = MSI;
9544                         intr_mode = 1;
9545                 }
9546         }
9547
9548         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9549         if (phba->intr_type == NONE) {
9550                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9551                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9552                 if (!retval) {
9553                         /* Indicate initialization to INTx mode */
9554                         phba->intr_type = INTx;
9555                         intr_mode = 0;
9556                 }
9557         }
9558         return intr_mode;
9559 }
9560
9561 /**
9562  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
9563  * @phba: pointer to lpfc hba data structure.
9564  *
9565  * This routine is invoked to disable device interrupt and disassociate the
9566  * driver's interrupt handler(s) from interrupt vector(s) to device with
9567  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
9568  * release the interrupt vector(s) for the message signaled interrupt.
9569  **/
9570 static void
9571 lpfc_sli_disable_intr(struct lpfc_hba *phba)
9572 {
9573         int nr_irqs, i;
9574
9575         if (phba->intr_type == MSIX)
9576                 nr_irqs = LPFC_MSIX_VECTORS;
9577         else
9578                 nr_irqs = 1;
9579
9580         for (i = 0; i < nr_irqs; i++)
9581                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
9582         pci_free_irq_vectors(phba->pcidev);
9583
9584         /* Reset interrupt management states */
9585         phba->intr_type = NONE;
9586         phba->sli.slistat.sli_intr = 0;
9587 }
9588
9589 /**
9590  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
9591  * @phba: pointer to lpfc hba data structure.
9592  * @vectors: number of msix vectors allocated.
9593  *
9594  * The routine will figure out the CPU affinity assignment for every
9595  * MSI-X vector allocated for the HBA.  The hba_eq_hdl will be updated
9596  * with a pointer to the CPU mask that defines ALL the CPUs this vector
9597  * can be associated with. If the vector can be unquely associated with
9598  * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu.
9599  * In addition, the CPU to IO channel mapping will be calculated
9600  * and the phba->sli4_hba.cpu_map array will reflect this.
9601  */
9602 static void
9603 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
9604 {
9605         struct lpfc_vector_map_info *cpup;
9606         int index = 0;
9607         int vec = 0;
9608         int cpu;
9609 #ifdef CONFIG_X86
9610         struct cpuinfo_x86 *cpuinfo;
9611 #endif
9612
9613         /* Init cpu_map array */
9614         memset(phba->sli4_hba.cpu_map, 0xff,
9615                (sizeof(struct lpfc_vector_map_info) *
9616                phba->sli4_hba.num_present_cpu));
9617
9618         /* Update CPU map with physical id and core id of each CPU */
9619         cpup = phba->sli4_hba.cpu_map;
9620         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
9621 #ifdef CONFIG_X86
9622                 cpuinfo = &cpu_data(cpu);
9623                 cpup->phys_id = cpuinfo->phys_proc_id;
9624                 cpup->core_id = cpuinfo->cpu_core_id;
9625 #else
9626                 /* No distinction between CPUs for other platforms */
9627                 cpup->phys_id = 0;
9628                 cpup->core_id = 0;
9629 #endif
9630                 cpup->channel_id = index;  /* For now round robin */
9631                 cpup->irq = pci_irq_vector(phba->pcidev, vec);
9632                 vec++;
9633                 if (vec >= vectors)
9634                         vec = 0;
9635                 index++;
9636                 if (index >= phba->cfg_fcp_io_channel)
9637                         index = 0;
9638                 cpup++;
9639         }
9640 }
9641
9642
9643 /**
9644  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
9645  * @phba: pointer to lpfc hba data structure.
9646  *
9647  * This routine is invoked to enable the MSI-X interrupt vectors to device
9648  * with SLI-4 interface spec.
9649  *
9650  * Return codes
9651  * 0 - successful
9652  * other values - error
9653  **/
9654 static int
9655 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
9656 {
9657         int vectors, rc, index;
9658
9659         /* Set up MSI-X multi-message vectors */
9660         vectors = phba->io_channel_irqs;
9661         if (phba->cfg_fof)
9662                 vectors++;
9663
9664         rc = pci_alloc_irq_vectors(phba->pcidev,
9665                                 (phba->nvmet_support) ? 1 : 2,
9666                                 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
9667         if (rc < 0) {
9668                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9669                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
9670                 goto vec_fail_out;
9671         }
9672         vectors = rc;
9673
9674         /* Assign MSI-X vectors to interrupt handlers */
9675         for (index = 0; index < vectors; index++) {
9676                 memset(&phba->sli4_hba.handler_name[index], 0, 16);
9677                 snprintf((char *)&phba->sli4_hba.handler_name[index],
9678                          LPFC_SLI4_HANDLER_NAME_SZ,
9679                          LPFC_DRIVER_HANDLER_NAME"%d", index);
9680
9681                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9682                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9683                 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1);
9684                 if (phba->cfg_fof && (index == (vectors - 1)))
9685                         rc = request_irq(pci_irq_vector(phba->pcidev, index),
9686                                  &lpfc_sli4_fof_intr_handler, 0,
9687                                  (char *)&phba->sli4_hba.handler_name[index],
9688                                  &phba->sli4_hba.hba_eq_hdl[index]);
9689                 else
9690                         rc = request_irq(pci_irq_vector(phba->pcidev, index),
9691                                  &lpfc_sli4_hba_intr_handler, 0,
9692                                  (char *)&phba->sli4_hba.handler_name[index],
9693                                  &phba->sli4_hba.hba_eq_hdl[index]);
9694                 if (rc) {
9695                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9696                                         "0486 MSI-X fast-path (%d) "
9697                                         "request_irq failed (%d)\n", index, rc);
9698                         goto cfg_fail_out;
9699                 }
9700         }
9701
9702         if (phba->cfg_fof)
9703                 vectors--;
9704
9705         if (vectors != phba->io_channel_irqs) {
9706                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9707                                 "3238 Reducing IO channels to match number of "
9708                                 "MSI-X vectors, requested %d got %d\n",
9709                                 phba->io_channel_irqs, vectors);
9710                 if (phba->cfg_fcp_io_channel > vectors)
9711                         phba->cfg_fcp_io_channel = vectors;
9712                 if (phba->cfg_nvme_io_channel > vectors)
9713                         phba->cfg_nvme_io_channel = vectors;
9714                 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel)
9715                         phba->io_channel_irqs = phba->cfg_fcp_io_channel;
9716                 else
9717                         phba->io_channel_irqs = phba->cfg_nvme_io_channel;
9718         }
9719         lpfc_cpu_affinity_check(phba, vectors);
9720
9721         return rc;
9722
9723 cfg_fail_out:
9724         /* free the irq already requested */
9725         for (--index; index >= 0; index--)
9726                 free_irq(pci_irq_vector(phba->pcidev, index),
9727                                 &phba->sli4_hba.hba_eq_hdl[index]);
9728
9729         /* Unconfigure MSI-X capability structure */
9730         pci_free_irq_vectors(phba->pcidev);
9731
9732 vec_fail_out:
9733         return rc;
9734 }
9735
9736 /**
9737  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
9738  * @phba: pointer to lpfc hba data structure.
9739  *
9740  * This routine is invoked to enable the MSI interrupt mode to device with
9741  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
9742  * to enable the MSI vector. The device driver is responsible for calling
9743  * the request_irq() to register MSI vector with a interrupt the handler,
9744  * which is done in this function.
9745  *
9746  * Return codes
9747  *      0 - successful
9748  *      other values - error
9749  **/
9750 static int
9751 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
9752 {
9753         int rc, index;
9754
9755         rc = pci_enable_msi(phba->pcidev);
9756         if (!rc)
9757                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9758                                 "0487 PCI enable MSI mode success.\n");
9759         else {
9760                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9761                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
9762                 return rc;
9763         }
9764
9765         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9766                          0, LPFC_DRIVER_NAME, phba);
9767         if (rc) {
9768                 pci_disable_msi(phba->pcidev);
9769                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9770                                 "0490 MSI request_irq failed (%d)\n", rc);
9771                 return rc;
9772         }
9773
9774         for (index = 0; index < phba->io_channel_irqs; index++) {
9775                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9776                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9777         }
9778
9779         if (phba->cfg_fof) {
9780                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9781                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9782         }
9783         return 0;
9784 }
9785
9786 /**
9787  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
9788  * @phba: pointer to lpfc hba data structure.
9789  *
9790  * This routine is invoked to enable device interrupt and associate driver's
9791  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
9792  * interface spec. Depends on the interrupt mode configured to the driver,
9793  * the driver will try to fallback from the configured interrupt mode to an
9794  * interrupt mode which is supported by the platform, kernel, and device in
9795  * the order of:
9796  * MSI-X -> MSI -> IRQ.
9797  *
9798  * Return codes
9799  *      0 - successful
9800  *      other values - error
9801  **/
9802 static uint32_t
9803 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9804 {
9805         uint32_t intr_mode = LPFC_INTR_ERROR;
9806         int retval, idx;
9807
9808         if (cfg_mode == 2) {
9809                 /* Preparation before conf_msi mbox cmd */
9810                 retval = 0;
9811                 if (!retval) {
9812                         /* Now, try to enable MSI-X interrupt mode */
9813                         retval = lpfc_sli4_enable_msix(phba);
9814                         if (!retval) {
9815                                 /* Indicate initialization to MSI-X mode */
9816                                 phba->intr_type = MSIX;
9817                                 intr_mode = 2;
9818                         }
9819                 }
9820         }
9821
9822         /* Fallback to MSI if MSI-X initialization failed */
9823         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9824                 retval = lpfc_sli4_enable_msi(phba);
9825                 if (!retval) {
9826                         /* Indicate initialization to MSI mode */
9827                         phba->intr_type = MSI;
9828                         intr_mode = 1;
9829                 }
9830         }
9831
9832         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9833         if (phba->intr_type == NONE) {
9834                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9835                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9836                 if (!retval) {
9837                         struct lpfc_hba_eq_hdl *eqhdl;
9838
9839                         /* Indicate initialization to INTx mode */
9840                         phba->intr_type = INTx;
9841                         intr_mode = 0;
9842
9843                         for (idx = 0; idx < phba->io_channel_irqs; idx++) {
9844                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
9845                                 eqhdl->idx = idx;
9846                                 eqhdl->phba = phba;
9847                                 atomic_set(&eqhdl->hba_eq_in_use, 1);
9848                         }
9849                         if (phba->cfg_fof) {
9850                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
9851                                 eqhdl->idx = idx;
9852                                 eqhdl->phba = phba;
9853                                 atomic_set(&eqhdl->hba_eq_in_use, 1);
9854                         }
9855                 }
9856         }
9857         return intr_mode;
9858 }
9859
9860 /**
9861  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
9862  * @phba: pointer to lpfc hba data structure.
9863  *
9864  * This routine is invoked to disable device interrupt and disassociate
9865  * the driver's interrupt handler(s) from interrupt vector(s) to device
9866  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
9867  * will release the interrupt vector(s) for the message signaled interrupt.
9868  **/
9869 static void
9870 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
9871 {
9872         /* Disable the currently initialized interrupt mode */
9873         if (phba->intr_type == MSIX) {
9874                 int index;
9875
9876                 /* Free up MSI-X multi-message vectors */
9877                 for (index = 0; index < phba->io_channel_irqs; index++)
9878                         free_irq(pci_irq_vector(phba->pcidev, index),
9879                                         &phba->sli4_hba.hba_eq_hdl[index]);
9880
9881                 if (phba->cfg_fof)
9882                         free_irq(pci_irq_vector(phba->pcidev, index),
9883                                         &phba->sli4_hba.hba_eq_hdl[index]);
9884         } else {
9885                 free_irq(phba->pcidev->irq, phba);
9886         }
9887
9888         pci_free_irq_vectors(phba->pcidev);
9889
9890         /* Reset interrupt management states */
9891         phba->intr_type = NONE;
9892         phba->sli.slistat.sli_intr = 0;
9893 }
9894
9895 /**
9896  * lpfc_unset_hba - Unset SLI3 hba device initialization
9897  * @phba: pointer to lpfc hba data structure.
9898  *
9899  * This routine is invoked to unset the HBA device initialization steps to
9900  * a device with SLI-3 interface spec.
9901  **/
9902 static void
9903 lpfc_unset_hba(struct lpfc_hba *phba)
9904 {
9905         struct lpfc_vport *vport = phba->pport;
9906         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
9907
9908         spin_lock_irq(shost->host_lock);
9909         vport->load_flag |= FC_UNLOADING;
9910         spin_unlock_irq(shost->host_lock);
9911
9912         kfree(phba->vpi_bmask);
9913         kfree(phba->vpi_ids);
9914
9915         lpfc_stop_hba_timers(phba);
9916
9917         phba->pport->work_port_events = 0;
9918
9919         lpfc_sli_hba_down(phba);
9920
9921         lpfc_sli_brdrestart(phba);
9922
9923         lpfc_sli_disable_intr(phba);
9924
9925         return;
9926 }
9927
9928 /**
9929  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
9930  * @phba: Pointer to HBA context object.
9931  *
9932  * This function is called in the SLI4 code path to wait for completion
9933  * of device's XRIs exchange busy. It will check the XRI exchange busy
9934  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
9935  * that, it will check the XRI exchange busy on outstanding FCP and ELS
9936  * I/Os every 30 seconds, log error message, and wait forever. Only when
9937  * all XRI exchange busy complete, the driver unload shall proceed with
9938  * invoking the function reset ioctl mailbox command to the CNA and the
9939  * the rest of the driver unload resource release.
9940  **/
9941 static void
9942 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
9943 {
9944         int wait_time = 0;
9945         int nvme_xri_cmpl = 1;
9946         int nvmet_xri_cmpl = 1;
9947         int fcp_xri_cmpl = 1;
9948         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9949
9950         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
9951                 fcp_xri_cmpl =
9952                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9953         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9954                 nvme_xri_cmpl =
9955                         list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
9956                 nvmet_xri_cmpl =
9957                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
9958         }
9959
9960         while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl ||
9961                !nvmet_xri_cmpl) {
9962                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
9963                         if (!nvme_xri_cmpl)
9964                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9965                                                 "6100 NVME XRI exchange busy "
9966                                                 "wait time: %d seconds.\n",
9967                                                 wait_time/1000);
9968                         if (!fcp_xri_cmpl)
9969                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9970                                                 "2877 FCP XRI exchange busy "
9971                                                 "wait time: %d seconds.\n",
9972                                                 wait_time/1000);
9973                         if (!els_xri_cmpl)
9974                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9975                                                 "2878 ELS XRI exchange busy "
9976                                                 "wait time: %d seconds.\n",
9977                                                 wait_time/1000);
9978                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
9979                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
9980                 } else {
9981                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
9982                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
9983                 }
9984                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9985                         nvme_xri_cmpl = list_empty(
9986                                 &phba->sli4_hba.lpfc_abts_nvme_buf_list);
9987                         nvmet_xri_cmpl = list_empty(
9988                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
9989                 }
9990
9991                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
9992                         fcp_xri_cmpl = list_empty(
9993                                 &phba->sli4_hba.lpfc_abts_scsi_buf_list);
9994
9995                 els_xri_cmpl =
9996                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9997
9998         }
9999 }
10000
10001 /**
10002  * lpfc_sli4_hba_unset - Unset the fcoe hba
10003  * @phba: Pointer to HBA context object.
10004  *
10005  * This function is called in the SLI4 code path to reset the HBA's FCoE
10006  * function. The caller is not required to hold any lock. This routine
10007  * issues PCI function reset mailbox command to reset the FCoE function.
10008  * At the end of the function, it calls lpfc_hba_down_post function to
10009  * free any pending commands.
10010  **/
10011 static void
10012 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
10013 {
10014         int wait_cnt = 0;
10015         LPFC_MBOXQ_t *mboxq;
10016         struct pci_dev *pdev = phba->pcidev;
10017
10018         lpfc_stop_hba_timers(phba);
10019         phba->sli4_hba.intr_enable = 0;
10020
10021         /*
10022          * Gracefully wait out the potential current outstanding asynchronous
10023          * mailbox command.
10024          */
10025
10026         /* First, block any pending async mailbox command from posted */
10027         spin_lock_irq(&phba->hbalock);
10028         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10029         spin_unlock_irq(&phba->hbalock);
10030         /* Now, trying to wait it out if we can */
10031         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10032                 msleep(10);
10033                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
10034                         break;
10035         }
10036         /* Forcefully release the outstanding mailbox command if timed out */
10037         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10038                 spin_lock_irq(&phba->hbalock);
10039                 mboxq = phba->sli.mbox_active;
10040                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
10041                 __lpfc_mbox_cmpl_put(phba, mboxq);
10042                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10043                 phba->sli.mbox_active = NULL;
10044                 spin_unlock_irq(&phba->hbalock);
10045         }
10046
10047         /* Abort all iocbs associated with the hba */
10048         lpfc_sli_hba_iocb_abort(phba);
10049
10050         /* Wait for completion of device XRI exchange busy */
10051         lpfc_sli4_xri_exchange_busy_wait(phba);
10052
10053         /* Disable PCI subsystem interrupt */
10054         lpfc_sli4_disable_intr(phba);
10055
10056         /* Disable SR-IOV if enabled */
10057         if (phba->cfg_sriov_nr_virtfn)
10058                 pci_disable_sriov(pdev);
10059
10060         /* Stop kthread signal shall trigger work_done one more time */
10061         kthread_stop(phba->worker_thread);
10062
10063         /* Unset the queues shared with the hardware then release all
10064          * allocated resources.
10065          */
10066         lpfc_sli4_queue_unset(phba);
10067         lpfc_sli4_queue_destroy(phba);
10068
10069         /* Reset SLI4 HBA FCoE function */
10070         lpfc_pci_function_reset(phba);
10071
10072         /* Stop the SLI4 device port */
10073         phba->pport->work_port_events = 0;
10074 }
10075
10076  /**
10077  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
10078  * @phba: Pointer to HBA context object.
10079  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10080  *
10081  * This function is called in the SLI4 code path to read the port's
10082  * sli4 capabilities.
10083  *
10084  * This function may be be called from any context that can block-wait
10085  * for the completion.  The expectation is that this routine is called
10086  * typically from probe_one or from the online routine.
10087  **/
10088 int
10089 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10090 {
10091         int rc;
10092         struct lpfc_mqe *mqe;
10093         struct lpfc_pc_sli4_params *sli4_params;
10094         uint32_t mbox_tmo;
10095
10096         rc = 0;
10097         mqe = &mboxq->u.mqe;
10098
10099         /* Read the port's SLI4 Parameters port capabilities */
10100         lpfc_pc_sli4_params(mboxq);
10101         if (!phba->sli4_hba.intr_enable)
10102                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10103         else {
10104                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10105                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10106         }
10107
10108         if (unlikely(rc))
10109                 return 1;
10110
10111         sli4_params = &phba->sli4_hba.pc_sli4_params;
10112         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
10113         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
10114         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
10115         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
10116                                              &mqe->un.sli4_params);
10117         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
10118                                              &mqe->un.sli4_params);
10119         sli4_params->proto_types = mqe->un.sli4_params.word3;
10120         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
10121         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
10122         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
10123         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
10124         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
10125         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
10126         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
10127         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
10128         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
10129         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
10130         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
10131         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
10132         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
10133         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
10134         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
10135         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
10136         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
10137         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
10138         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
10139         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
10140
10141         /* Make sure that sge_supp_len can be handled by the driver */
10142         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10143                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10144
10145         return rc;
10146 }
10147
10148 /**
10149  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
10150  * @phba: Pointer to HBA context object.
10151  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10152  *
10153  * This function is called in the SLI4 code path to read the port's
10154  * sli4 capabilities.
10155  *
10156  * This function may be be called from any context that can block-wait
10157  * for the completion.  The expectation is that this routine is called
10158  * typically from probe_one or from the online routine.
10159  **/
10160 int
10161 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10162 {
10163         int rc;
10164         struct lpfc_mqe *mqe = &mboxq->u.mqe;
10165         struct lpfc_pc_sli4_params *sli4_params;
10166         uint32_t mbox_tmo;
10167         int length;
10168         struct lpfc_sli4_parameters *mbx_sli4_parameters;
10169
10170         /*
10171          * By default, the driver assumes the SLI4 port requires RPI
10172          * header postings.  The SLI4_PARAM response will correct this
10173          * assumption.
10174          */
10175         phba->sli4_hba.rpi_hdrs_in_use = 1;
10176
10177         /* Read the port's SLI4 Config Parameters */
10178         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
10179                   sizeof(struct lpfc_sli4_cfg_mhdr));
10180         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10181                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
10182                          length, LPFC_SLI4_MBX_EMBED);
10183         if (!phba->sli4_hba.intr_enable)
10184                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10185         else {
10186                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10187                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10188         }
10189         if (unlikely(rc))
10190                 return rc;
10191         sli4_params = &phba->sli4_hba.pc_sli4_params;
10192         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
10193         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
10194         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
10195         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
10196         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
10197                                              mbx_sli4_parameters);
10198         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
10199                                              mbx_sli4_parameters);
10200         if (bf_get(cfg_phwq, mbx_sli4_parameters))
10201                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
10202         else
10203                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
10204         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
10205         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
10206         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
10207         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
10208         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
10209         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
10210         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
10211         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
10212         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
10213                                             mbx_sli4_parameters);
10214         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
10215         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
10216                                            mbx_sli4_parameters);
10217         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
10218         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
10219         phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
10220                               bf_get(cfg_xib, mbx_sli4_parameters));
10221
10222         if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) ||
10223             !phba->nvme_support) {
10224                 phba->nvme_support = 0;
10225                 phba->nvmet_support = 0;
10226                 phba->cfg_nvmet_mrq = 0;
10227                 phba->cfg_nvme_io_channel = 0;
10228                 phba->io_channel_irqs = phba->cfg_fcp_io_channel;
10229                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
10230                                 "6101 Disabling NVME support: "
10231                                 "Not supported by firmware: %d %d\n",
10232                                 bf_get(cfg_nvme, mbx_sli4_parameters),
10233                                 bf_get(cfg_xib, mbx_sli4_parameters));
10234
10235                 /* If firmware doesn't support NVME, just use SCSI support */
10236                 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
10237                         return -ENODEV;
10238                 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
10239         }
10240
10241         if (bf_get(cfg_xib, mbx_sli4_parameters) && phba->cfg_suppress_rsp)
10242                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
10243
10244         /* Make sure that sge_supp_len can be handled by the driver */
10245         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10246                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10247
10248         /*
10249          * Issue IOs with CDB embedded in WQE to minimized the number
10250          * of DMAs the firmware has to do. Setting this to 1 also forces
10251          * the driver to use 128 bytes WQEs for FCP IOs.
10252          */
10253         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
10254                 phba->fcp_embed_io = 1;
10255         else
10256                 phba->fcp_embed_io = 0;
10257
10258         /*
10259          * Check if the SLI port supports MDS Diagnostics
10260          */
10261         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
10262                 phba->mds_diags_support = 1;
10263         else
10264                 phba->mds_diags_support = 0;
10265         return 0;
10266 }
10267
10268 /**
10269  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
10270  * @pdev: pointer to PCI device
10271  * @pid: pointer to PCI device identifier
10272  *
10273  * This routine is to be called to attach a device with SLI-3 interface spec
10274  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10275  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10276  * information of the device and driver to see if the driver state that it can
10277  * support this kind of device. If the match is successful, the driver core
10278  * invokes this routine. If this routine determines it can claim the HBA, it
10279  * does all the initialization that it needs to do to handle the HBA properly.
10280  *
10281  * Return code
10282  *      0 - driver can claim the device
10283  *      negative value - driver can not claim the device
10284  **/
10285 static int
10286 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
10287 {
10288         struct lpfc_hba   *phba;
10289         struct lpfc_vport *vport = NULL;
10290         struct Scsi_Host  *shost = NULL;
10291         int error;
10292         uint32_t cfg_mode, intr_mode;
10293
10294         /* Allocate memory for HBA structure */
10295         phba = lpfc_hba_alloc(pdev);
10296         if (!phba)
10297                 return -ENOMEM;
10298
10299         /* Perform generic PCI device enabling operation */
10300         error = lpfc_enable_pci_dev(phba);
10301         if (error)
10302                 goto out_free_phba;
10303
10304         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
10305         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
10306         if (error)
10307                 goto out_disable_pci_dev;
10308
10309         /* Set up SLI-3 specific device PCI memory space */
10310         error = lpfc_sli_pci_mem_setup(phba);
10311         if (error) {
10312                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10313                                 "1402 Failed to set up pci memory space.\n");
10314                 goto out_disable_pci_dev;
10315         }
10316
10317         /* Set up SLI-3 specific device driver resources */
10318         error = lpfc_sli_driver_resource_setup(phba);
10319         if (error) {
10320                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10321                                 "1404 Failed to set up driver resource.\n");
10322                 goto out_unset_pci_mem_s3;
10323         }
10324
10325         /* Initialize and populate the iocb list per host */
10326
10327         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
10328         if (error) {
10329                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10330                                 "1405 Failed to initialize iocb list.\n");
10331                 goto out_unset_driver_resource_s3;
10332         }
10333
10334         /* Set up common device driver resources */
10335         error = lpfc_setup_driver_resource_phase2(phba);
10336         if (error) {
10337                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10338                                 "1406 Failed to set up driver resource.\n");
10339                 goto out_free_iocb_list;
10340         }
10341
10342         /* Get the default values for Model Name and Description */
10343         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10344
10345         /* Create SCSI host to the physical port */
10346         error = lpfc_create_shost(phba);
10347         if (error) {
10348                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10349                                 "1407 Failed to create scsi host.\n");
10350                 goto out_unset_driver_resource;
10351         }
10352
10353         /* Configure sysfs attributes */
10354         vport = phba->pport;
10355         error = lpfc_alloc_sysfs_attr(vport);
10356         if (error) {
10357                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10358                                 "1476 Failed to allocate sysfs attr\n");
10359                 goto out_destroy_shost;
10360         }
10361
10362         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10363         /* Now, trying to enable interrupt and bring up the device */
10364         cfg_mode = phba->cfg_use_msi;
10365         while (true) {
10366                 /* Put device to a known state before enabling interrupt */
10367                 lpfc_stop_port(phba);
10368                 /* Configure and enable interrupt */
10369                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
10370                 if (intr_mode == LPFC_INTR_ERROR) {
10371                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10372                                         "0431 Failed to enable interrupt.\n");
10373                         error = -ENODEV;
10374                         goto out_free_sysfs_attr;
10375                 }
10376                 /* SLI-3 HBA setup */
10377                 if (lpfc_sli_hba_setup(phba)) {
10378                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10379                                         "1477 Failed to set up hba\n");
10380                         error = -ENODEV;
10381                         goto out_remove_device;
10382                 }
10383
10384                 /* Wait 50ms for the interrupts of previous mailbox commands */
10385                 msleep(50);
10386                 /* Check active interrupts on message signaled interrupts */
10387                 if (intr_mode == 0 ||
10388                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
10389                         /* Log the current active interrupt mode */
10390                         phba->intr_mode = intr_mode;
10391                         lpfc_log_intr_mode(phba, intr_mode);
10392                         break;
10393                 } else {
10394                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10395                                         "0447 Configure interrupt mode (%d) "
10396                                         "failed active interrupt test.\n",
10397                                         intr_mode);
10398                         /* Disable the current interrupt mode */
10399                         lpfc_sli_disable_intr(phba);
10400                         /* Try next level of interrupt mode */
10401                         cfg_mode = --intr_mode;
10402                 }
10403         }
10404
10405         /* Perform post initialization setup */
10406         lpfc_post_init_setup(phba);
10407
10408         /* Check if there are static vports to be created. */
10409         lpfc_create_static_vport(phba);
10410
10411         return 0;
10412
10413 out_remove_device:
10414         lpfc_unset_hba(phba);
10415 out_free_sysfs_attr:
10416         lpfc_free_sysfs_attr(vport);
10417 out_destroy_shost:
10418         lpfc_destroy_shost(phba);
10419 out_unset_driver_resource:
10420         lpfc_unset_driver_resource_phase2(phba);
10421 out_free_iocb_list:
10422         lpfc_free_iocb_list(phba);
10423 out_unset_driver_resource_s3:
10424         lpfc_sli_driver_resource_unset(phba);
10425 out_unset_pci_mem_s3:
10426         lpfc_sli_pci_mem_unset(phba);
10427 out_disable_pci_dev:
10428         lpfc_disable_pci_dev(phba);
10429         if (shost)
10430                 scsi_host_put(shost);
10431 out_free_phba:
10432         lpfc_hba_free(phba);
10433         return error;
10434 }
10435
10436 /**
10437  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
10438  * @pdev: pointer to PCI device
10439  *
10440  * This routine is to be called to disattach a device with SLI-3 interface
10441  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10442  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10443  * device to be removed from the PCI subsystem properly.
10444  **/
10445 static void
10446 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
10447 {
10448         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
10449         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10450         struct lpfc_vport **vports;
10451         struct lpfc_hba   *phba = vport->phba;
10452         int i;
10453
10454         spin_lock_irq(&phba->hbalock);
10455         vport->load_flag |= FC_UNLOADING;
10456         spin_unlock_irq(&phba->hbalock);
10457
10458         lpfc_free_sysfs_attr(vport);
10459
10460         /* Release all the vports against this physical port */
10461         vports = lpfc_create_vport_work_array(phba);
10462         if (vports != NULL)
10463                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10464                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10465                                 continue;
10466                         fc_vport_terminate(vports[i]->fc_vport);
10467                 }
10468         lpfc_destroy_vport_work_array(phba, vports);
10469
10470         /* Remove FC host and then SCSI host with the physical port */
10471         fc_remove_host(shost);
10472         scsi_remove_host(shost);
10473
10474         lpfc_cleanup(vport);
10475
10476         /*
10477          * Bring down the SLI Layer. This step disable all interrupts,
10478          * clears the rings, discards all mailbox commands, and resets
10479          * the HBA.
10480          */
10481
10482         /* HBA interrupt will be disabled after this call */
10483         lpfc_sli_hba_down(phba);
10484         /* Stop kthread signal shall trigger work_done one more time */
10485         kthread_stop(phba->worker_thread);
10486         /* Final cleanup of txcmplq and reset the HBA */
10487         lpfc_sli_brdrestart(phba);
10488
10489         kfree(phba->vpi_bmask);
10490         kfree(phba->vpi_ids);
10491
10492         lpfc_stop_hba_timers(phba);
10493         spin_lock_irq(&phba->hbalock);
10494         list_del_init(&vport->listentry);
10495         spin_unlock_irq(&phba->hbalock);
10496
10497         lpfc_debugfs_terminate(vport);
10498
10499         /* Disable SR-IOV if enabled */
10500         if (phba->cfg_sriov_nr_virtfn)
10501                 pci_disable_sriov(pdev);
10502
10503         /* Disable interrupt */
10504         lpfc_sli_disable_intr(phba);
10505
10506         scsi_host_put(shost);
10507
10508         /*
10509          * Call scsi_free before mem_free since scsi bufs are released to their
10510          * corresponding pools here.
10511          */
10512         lpfc_scsi_free(phba);
10513         lpfc_mem_free_all(phba);
10514
10515         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
10516                           phba->hbqslimp.virt, phba->hbqslimp.phys);
10517
10518         /* Free resources associated with SLI2 interface */
10519         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
10520                           phba->slim2p.virt, phba->slim2p.phys);
10521
10522         /* unmap adapter SLIM and Control Registers */
10523         iounmap(phba->ctrl_regs_memmap_p);
10524         iounmap(phba->slim_memmap_p);
10525
10526         lpfc_hba_free(phba);
10527
10528         pci_release_mem_regions(pdev);
10529         pci_disable_device(pdev);
10530 }
10531
10532 /**
10533  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
10534  * @pdev: pointer to PCI device
10535  * @msg: power management message
10536  *
10537  * This routine is to be called from the kernel's PCI subsystem to support
10538  * system Power Management (PM) to device with SLI-3 interface spec. When
10539  * PM invokes this method, it quiesces the device by stopping the driver's
10540  * worker thread for the device, turning off device's interrupt and DMA,
10541  * and bring the device offline. Note that as the driver implements the
10542  * minimum PM requirements to a power-aware driver's PM support for the
10543  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10544  * to the suspend() method call will be treated as SUSPEND and the driver will
10545  * fully reinitialize its device during resume() method call, the driver will
10546  * set device to PCI_D3hot state in PCI config space instead of setting it
10547  * according to the @msg provided by the PM.
10548  *
10549  * Return code
10550  *      0 - driver suspended the device
10551  *      Error otherwise
10552  **/
10553 static int
10554 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
10555 {
10556         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10557         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10558
10559         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10560                         "0473 PCI device Power Management suspend.\n");
10561
10562         /* Bring down the device */
10563         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10564         lpfc_offline(phba);
10565         kthread_stop(phba->worker_thread);
10566
10567         /* Disable interrupt from device */
10568         lpfc_sli_disable_intr(phba);
10569
10570         /* Save device state to PCI config space */
10571         pci_save_state(pdev);
10572         pci_set_power_state(pdev, PCI_D3hot);
10573
10574         return 0;
10575 }
10576
10577 /**
10578  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
10579  * @pdev: pointer to PCI device
10580  *
10581  * This routine is to be called from the kernel's PCI subsystem to support
10582  * system Power Management (PM) to device with SLI-3 interface spec. When PM
10583  * invokes this method, it restores the device's PCI config space state and
10584  * fully reinitializes the device and brings it online. Note that as the
10585  * driver implements the minimum PM requirements to a power-aware driver's
10586  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
10587  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
10588  * driver will fully reinitialize its device during resume() method call,
10589  * the device will be set to PCI_D0 directly in PCI config space before
10590  * restoring the state.
10591  *
10592  * Return code
10593  *      0 - driver suspended the device
10594  *      Error otherwise
10595  **/
10596 static int
10597 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
10598 {
10599         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10600         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10601         uint32_t intr_mode;
10602         int error;
10603
10604         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10605                         "0452 PCI device Power Management resume.\n");
10606
10607         /* Restore device state from PCI config space */
10608         pci_set_power_state(pdev, PCI_D0);
10609         pci_restore_state(pdev);
10610
10611         /*
10612          * As the new kernel behavior of pci_restore_state() API call clears
10613          * device saved_state flag, need to save the restored state again.
10614          */
10615         pci_save_state(pdev);
10616
10617         if (pdev->is_busmaster)
10618                 pci_set_master(pdev);
10619
10620         /* Startup the kernel thread for this host adapter. */
10621         phba->worker_thread = kthread_run(lpfc_do_work, phba,
10622                                         "lpfc_worker_%d", phba->brd_no);
10623         if (IS_ERR(phba->worker_thread)) {
10624                 error = PTR_ERR(phba->worker_thread);
10625                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10626                                 "0434 PM resume failed to start worker "
10627                                 "thread: error=x%x.\n", error);
10628                 return error;
10629         }
10630
10631         /* Configure and enable interrupt */
10632         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10633         if (intr_mode == LPFC_INTR_ERROR) {
10634                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10635                                 "0430 PM resume Failed to enable interrupt\n");
10636                 return -EIO;
10637         } else
10638                 phba->intr_mode = intr_mode;
10639
10640         /* Restart HBA and bring it online */
10641         lpfc_sli_brdrestart(phba);
10642         lpfc_online(phba);
10643
10644         /* Log the current active interrupt mode */
10645         lpfc_log_intr_mode(phba, phba->intr_mode);
10646
10647         return 0;
10648 }
10649
10650 /**
10651  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
10652  * @phba: pointer to lpfc hba data structure.
10653  *
10654  * This routine is called to prepare the SLI3 device for PCI slot recover. It
10655  * aborts all the outstanding SCSI I/Os to the pci device.
10656  **/
10657 static void
10658 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
10659 {
10660         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10661                         "2723 PCI channel I/O abort preparing for recovery\n");
10662
10663         /*
10664          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10665          * and let the SCSI mid-layer to retry them to recover.
10666          */
10667         lpfc_sli_abort_fcp_rings(phba);
10668 }
10669
10670 /**
10671  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
10672  * @phba: pointer to lpfc hba data structure.
10673  *
10674  * This routine is called to prepare the SLI3 device for PCI slot reset. It
10675  * disables the device interrupt and pci device, and aborts the internal FCP
10676  * pending I/Os.
10677  **/
10678 static void
10679 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
10680 {
10681         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10682                         "2710 PCI channel disable preparing for reset\n");
10683
10684         /* Block any management I/Os to the device */
10685         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
10686
10687         /* Block all SCSI devices' I/Os on the host */
10688         lpfc_scsi_dev_block(phba);
10689
10690         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10691         lpfc_sli_flush_fcp_rings(phba);
10692
10693         /* stop all timers */
10694         lpfc_stop_hba_timers(phba);
10695
10696         /* Disable interrupt and pci device */
10697         lpfc_sli_disable_intr(phba);
10698         pci_disable_device(phba->pcidev);
10699 }
10700
10701 /**
10702  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
10703  * @phba: pointer to lpfc hba data structure.
10704  *
10705  * This routine is called to prepare the SLI3 device for PCI slot permanently
10706  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10707  * pending I/Os.
10708  **/
10709 static void
10710 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10711 {
10712         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10713                         "2711 PCI channel permanent disable for failure\n");
10714         /* Block all SCSI devices' I/Os on the host */
10715         lpfc_scsi_dev_block(phba);
10716
10717         /* stop all timers */
10718         lpfc_stop_hba_timers(phba);
10719
10720         /* Clean up all driver's outstanding SCSI I/Os */
10721         lpfc_sli_flush_fcp_rings(phba);
10722 }
10723
10724 /**
10725  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
10726  * @pdev: pointer to PCI device.
10727  * @state: the current PCI connection state.
10728  *
10729  * This routine is called from the PCI subsystem for I/O error handling to
10730  * device with SLI-3 interface spec. This function is called by the PCI
10731  * subsystem after a PCI bus error affecting this device has been detected.
10732  * When this function is invoked, it will need to stop all the I/Os and
10733  * interrupt(s) to the device. Once that is done, it will return
10734  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
10735  * as desired.
10736  *
10737  * Return codes
10738  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
10739  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10740  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10741  **/
10742 static pci_ers_result_t
10743 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
10744 {
10745         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10746         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10747
10748         switch (state) {
10749         case pci_channel_io_normal:
10750                 /* Non-fatal error, prepare for recovery */
10751                 lpfc_sli_prep_dev_for_recover(phba);
10752                 return PCI_ERS_RESULT_CAN_RECOVER;
10753         case pci_channel_io_frozen:
10754                 /* Fatal error, prepare for slot reset */
10755                 lpfc_sli_prep_dev_for_reset(phba);
10756                 return PCI_ERS_RESULT_NEED_RESET;
10757         case pci_channel_io_perm_failure:
10758                 /* Permanent failure, prepare for device down */
10759                 lpfc_sli_prep_dev_for_perm_failure(phba);
10760                 return PCI_ERS_RESULT_DISCONNECT;
10761         default:
10762                 /* Unknown state, prepare and request slot reset */
10763                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10764                                 "0472 Unknown PCI error state: x%x\n", state);
10765                 lpfc_sli_prep_dev_for_reset(phba);
10766                 return PCI_ERS_RESULT_NEED_RESET;
10767         }
10768 }
10769
10770 /**
10771  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
10772  * @pdev: pointer to PCI device.
10773  *
10774  * This routine is called from the PCI subsystem for error handling to
10775  * device with SLI-3 interface spec. This is called after PCI bus has been
10776  * reset to restart the PCI card from scratch, as if from a cold-boot.
10777  * During the PCI subsystem error recovery, after driver returns
10778  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10779  * recovery and then call this routine before calling the .resume method
10780  * to recover the device. This function will initialize the HBA device,
10781  * enable the interrupt, but it will just put the HBA to offline state
10782  * without passing any I/O traffic.
10783  *
10784  * Return codes
10785  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10786  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10787  */
10788 static pci_ers_result_t
10789 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
10790 {
10791         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10792         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10793         struct lpfc_sli *psli = &phba->sli;
10794         uint32_t intr_mode;
10795
10796         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10797         if (pci_enable_device_mem(pdev)) {
10798                 printk(KERN_ERR "lpfc: Cannot re-enable "
10799                         "PCI device after reset.\n");
10800                 return PCI_ERS_RESULT_DISCONNECT;
10801         }
10802
10803         pci_restore_state(pdev);
10804
10805         /*
10806          * As the new kernel behavior of pci_restore_state() API call clears
10807          * device saved_state flag, need to save the restored state again.
10808          */
10809         pci_save_state(pdev);
10810
10811         if (pdev->is_busmaster)
10812                 pci_set_master(pdev);
10813
10814         spin_lock_irq(&phba->hbalock);
10815         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10816         spin_unlock_irq(&phba->hbalock);
10817
10818         /* Configure and enable interrupt */
10819         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10820         if (intr_mode == LPFC_INTR_ERROR) {
10821                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10822                                 "0427 Cannot re-enable interrupt after "
10823                                 "slot reset.\n");
10824                 return PCI_ERS_RESULT_DISCONNECT;
10825         } else
10826                 phba->intr_mode = intr_mode;
10827
10828         /* Take device offline, it will perform cleanup */
10829         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10830         lpfc_offline(phba);
10831         lpfc_sli_brdrestart(phba);
10832
10833         /* Log the current active interrupt mode */
10834         lpfc_log_intr_mode(phba, phba->intr_mode);
10835
10836         return PCI_ERS_RESULT_RECOVERED;
10837 }
10838
10839 /**
10840  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
10841  * @pdev: pointer to PCI device
10842  *
10843  * This routine is called from the PCI subsystem for error handling to device
10844  * with SLI-3 interface spec. It is called when kernel error recovery tells
10845  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10846  * error recovery. After this call, traffic can start to flow from this device
10847  * again.
10848  */
10849 static void
10850 lpfc_io_resume_s3(struct pci_dev *pdev)
10851 {
10852         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10853         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10854
10855         /* Bring device online, it will be no-op for non-fatal error resume */
10856         lpfc_online(phba);
10857
10858         /* Clean up Advanced Error Reporting (AER) if needed */
10859         if (phba->hba_flag & HBA_AER_ENABLED)
10860                 pci_cleanup_aer_uncorrect_error_status(pdev);
10861 }
10862
10863 /**
10864  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
10865  * @phba: pointer to lpfc hba data structure.
10866  *
10867  * returns the number of ELS/CT IOCBs to reserve
10868  **/
10869 int
10870 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
10871 {
10872         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
10873
10874         if (phba->sli_rev == LPFC_SLI_REV4) {
10875                 if (max_xri <= 100)
10876                         return 10;
10877                 else if (max_xri <= 256)
10878                         return 25;
10879                 else if (max_xri <= 512)
10880                         return 50;
10881                 else if (max_xri <= 1024)
10882                         return 100;
10883                 else if (max_xri <= 1536)
10884                         return 150;
10885                 else if (max_xri <= 2048)
10886                         return 200;
10887                 else
10888                         return 250;
10889         } else
10890                 return 0;
10891 }
10892
10893 /**
10894  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
10895  * @phba: pointer to lpfc hba data structure.
10896  *
10897  * returns the number of ELS/CT + NVMET IOCBs to reserve
10898  **/
10899 int
10900 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
10901 {
10902         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
10903
10904         if (phba->nvmet_support)
10905                 max_xri += LPFC_NVMET_BUF_POST;
10906         return max_xri;
10907 }
10908
10909
10910 /**
10911  * lpfc_write_firmware - attempt to write a firmware image to the port
10912  * @fw: pointer to firmware image returned from request_firmware.
10913  * @phba: pointer to lpfc hba data structure.
10914  *
10915  **/
10916 static void
10917 lpfc_write_firmware(const struct firmware *fw, void *context)
10918 {
10919         struct lpfc_hba *phba = (struct lpfc_hba *)context;
10920         char fwrev[FW_REV_STR_SIZE];
10921         struct lpfc_grp_hdr *image;
10922         struct list_head dma_buffer_list;
10923         int i, rc = 0;
10924         struct lpfc_dmabuf *dmabuf, *next;
10925         uint32_t offset = 0, temp_offset = 0;
10926         uint32_t magic_number, ftype, fid, fsize;
10927
10928         /* It can be null in no-wait mode, sanity check */
10929         if (!fw) {
10930                 rc = -ENXIO;
10931                 goto out;
10932         }
10933         image = (struct lpfc_grp_hdr *)fw->data;
10934
10935         magic_number = be32_to_cpu(image->magic_number);
10936         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
10937         fid = bf_get_be32(lpfc_grp_hdr_id, image),
10938         fsize = be32_to_cpu(image->size);
10939
10940         INIT_LIST_HEAD(&dma_buffer_list);
10941         if ((magic_number != LPFC_GROUP_OJECT_MAGIC_G5 &&
10942              magic_number != LPFC_GROUP_OJECT_MAGIC_G6) ||
10943             ftype != LPFC_FILE_TYPE_GROUP || fsize != fw->size) {
10944                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10945                                 "3022 Invalid FW image found. "
10946                                 "Magic:%x Type:%x ID:%x Size %d %zd\n",
10947                                 magic_number, ftype, fid, fsize, fw->size);
10948                 rc = -EINVAL;
10949                 goto release_out;
10950         }
10951         lpfc_decode_firmware_rev(phba, fwrev, 1);
10952         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
10953                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10954                                 "3023 Updating Firmware, Current Version:%s "
10955                                 "New Version:%s\n",
10956                                 fwrev, image->revision);
10957                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
10958                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
10959                                          GFP_KERNEL);
10960                         if (!dmabuf) {
10961                                 rc = -ENOMEM;
10962                                 goto release_out;
10963                         }
10964                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
10965                                                           SLI4_PAGE_SIZE,
10966                                                           &dmabuf->phys,
10967                                                           GFP_KERNEL);
10968                         if (!dmabuf->virt) {
10969                                 kfree(dmabuf);
10970                                 rc = -ENOMEM;
10971                                 goto release_out;
10972                         }
10973                         list_add_tail(&dmabuf->list, &dma_buffer_list);
10974                 }
10975                 while (offset < fw->size) {
10976                         temp_offset = offset;
10977                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
10978                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
10979                                         memcpy(dmabuf->virt,
10980                                                fw->data + temp_offset,
10981                                                fw->size - temp_offset);
10982                                         temp_offset = fw->size;
10983                                         break;
10984                                 }
10985                                 memcpy(dmabuf->virt, fw->data + temp_offset,
10986                                        SLI4_PAGE_SIZE);
10987                                 temp_offset += SLI4_PAGE_SIZE;
10988                         }
10989                         rc = lpfc_wr_object(phba, &dma_buffer_list,
10990                                     (fw->size - offset), &offset);
10991                         if (rc)
10992                                 goto release_out;
10993                 }
10994                 rc = offset;
10995         }
10996
10997 release_out:
10998         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
10999                 list_del(&dmabuf->list);
11000                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
11001                                   dmabuf->virt, dmabuf->phys);
11002                 kfree(dmabuf);
11003         }
11004         release_firmware(fw);
11005 out:
11006         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11007                         "3024 Firmware update done: %d.\n", rc);
11008         return;
11009 }
11010
11011 /**
11012  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
11013  * @phba: pointer to lpfc hba data structure.
11014  *
11015  * This routine is called to perform Linux generic firmware upgrade on device
11016  * that supports such feature.
11017  **/
11018 int
11019 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
11020 {
11021         uint8_t file_name[ELX_MODEL_NAME_SIZE];
11022         int ret;
11023         const struct firmware *fw;
11024
11025         /* Only supported on SLI4 interface type 2 for now */
11026         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
11027             LPFC_SLI_INTF_IF_TYPE_2)
11028                 return -EPERM;
11029
11030         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
11031
11032         if (fw_upgrade == INT_FW_UPGRADE) {
11033                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
11034                                         file_name, &phba->pcidev->dev,
11035                                         GFP_KERNEL, (void *)phba,
11036                                         lpfc_write_firmware);
11037         } else if (fw_upgrade == RUN_FW_UPGRADE) {
11038                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
11039                 if (!ret)
11040                         lpfc_write_firmware(fw, (void *)phba);
11041         } else {
11042                 ret = -EINVAL;
11043         }
11044
11045         return ret;
11046 }
11047
11048 /**
11049  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
11050  * @pdev: pointer to PCI device
11051  * @pid: pointer to PCI device identifier
11052  *
11053  * This routine is called from the kernel's PCI subsystem to device with
11054  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11055  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
11056  * information of the device and driver to see if the driver state that it
11057  * can support this kind of device. If the match is successful, the driver
11058  * core invokes this routine. If this routine determines it can claim the HBA,
11059  * it does all the initialization that it needs to do to handle the HBA
11060  * properly.
11061  *
11062  * Return code
11063  *      0 - driver can claim the device
11064  *      negative value - driver can not claim the device
11065  **/
11066 static int
11067 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
11068 {
11069         struct lpfc_hba   *phba;
11070         struct lpfc_vport *vport = NULL;
11071         struct Scsi_Host  *shost = NULL;
11072         int error;
11073         uint32_t cfg_mode, intr_mode;
11074
11075         /* Allocate memory for HBA structure */
11076         phba = lpfc_hba_alloc(pdev);
11077         if (!phba)
11078                 return -ENOMEM;
11079
11080         /* Perform generic PCI device enabling operation */
11081         error = lpfc_enable_pci_dev(phba);
11082         if (error)
11083                 goto out_free_phba;
11084
11085         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
11086         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
11087         if (error)
11088                 goto out_disable_pci_dev;
11089
11090         /* Set up SLI-4 specific device PCI memory space */
11091         error = lpfc_sli4_pci_mem_setup(phba);
11092         if (error) {
11093                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11094                                 "1410 Failed to set up pci memory space.\n");
11095                 goto out_disable_pci_dev;
11096         }
11097
11098         /* Set up SLI-4 Specific device driver resources */
11099         error = lpfc_sli4_driver_resource_setup(phba);
11100         if (error) {
11101                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11102                                 "1412 Failed to set up driver resource.\n");
11103                 goto out_unset_pci_mem_s4;
11104         }
11105
11106         INIT_LIST_HEAD(&phba->active_rrq_list);
11107         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
11108
11109         /* Set up common device driver resources */
11110         error = lpfc_setup_driver_resource_phase2(phba);
11111         if (error) {
11112                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11113                                 "1414 Failed to set up driver resource.\n");
11114                 goto out_unset_driver_resource_s4;
11115         }
11116
11117         /* Get the default values for Model Name and Description */
11118         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11119
11120         /* Create SCSI host to the physical port */
11121         error = lpfc_create_shost(phba);
11122         if (error) {
11123                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11124                                 "1415 Failed to create scsi host.\n");
11125                 goto out_unset_driver_resource;
11126         }
11127
11128         /* Configure sysfs attributes */
11129         vport = phba->pport;
11130         error = lpfc_alloc_sysfs_attr(vport);
11131         if (error) {
11132                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11133                                 "1416 Failed to allocate sysfs attr\n");
11134                 goto out_destroy_shost;
11135         }
11136
11137         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11138         /* Now, trying to enable interrupt and bring up the device */
11139         cfg_mode = phba->cfg_use_msi;
11140
11141         /* Put device to a known state before enabling interrupt */
11142         lpfc_stop_port(phba);
11143
11144         /* Configure and enable interrupt */
11145         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
11146         if (intr_mode == LPFC_INTR_ERROR) {
11147                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11148                                 "0426 Failed to enable interrupt.\n");
11149                 error = -ENODEV;
11150                 goto out_free_sysfs_attr;
11151         }
11152         /* Default to single EQ for non-MSI-X */
11153         if (phba->intr_type != MSIX) {
11154                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
11155                         phba->cfg_fcp_io_channel = 1;
11156                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11157                         phba->cfg_nvme_io_channel = 1;
11158                         if (phba->nvmet_support)
11159                                 phba->cfg_nvmet_mrq = 1;
11160                 }
11161                 phba->io_channel_irqs = 1;
11162         }
11163
11164         /* Set up SLI-4 HBA */
11165         if (lpfc_sli4_hba_setup(phba)) {
11166                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11167                                 "1421 Failed to set up hba\n");
11168                 error = -ENODEV;
11169                 goto out_disable_intr;
11170         }
11171
11172         /* Log the current active interrupt mode */
11173         phba->intr_mode = intr_mode;
11174         lpfc_log_intr_mode(phba, intr_mode);
11175
11176         /* Perform post initialization setup */
11177         lpfc_post_init_setup(phba);
11178
11179         /* NVME support in FW earlier in the driver load corrects the
11180          * FC4 type making a check for nvme_support unnecessary.
11181          */
11182         if ((phba->nvmet_support == 0) &&
11183             (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
11184                 /* Create NVME binding with nvme_fc_transport. This
11185                  * ensures the vport is initialized.  If the localport
11186                  * create fails, it should not unload the driver to
11187                  * support field issues.
11188                  */
11189                 error = lpfc_nvme_create_localport(vport);
11190                 if (error) {
11191                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11192                                         "6004 NVME registration failed, "
11193                                         "error x%x\n",
11194                                         error);
11195                 }
11196         }
11197
11198         /* check for firmware upgrade or downgrade */
11199         if (phba->cfg_request_firmware_upgrade)
11200                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
11201
11202         /* Check if there are static vports to be created. */
11203         lpfc_create_static_vport(phba);
11204         return 0;
11205
11206 out_disable_intr:
11207         lpfc_sli4_disable_intr(phba);
11208 out_free_sysfs_attr:
11209         lpfc_free_sysfs_attr(vport);
11210 out_destroy_shost:
11211         lpfc_destroy_shost(phba);
11212 out_unset_driver_resource:
11213         lpfc_unset_driver_resource_phase2(phba);
11214 out_unset_driver_resource_s4:
11215         lpfc_sli4_driver_resource_unset(phba);
11216 out_unset_pci_mem_s4:
11217         lpfc_sli4_pci_mem_unset(phba);
11218 out_disable_pci_dev:
11219         lpfc_disable_pci_dev(phba);
11220         if (shost)
11221                 scsi_host_put(shost);
11222 out_free_phba:
11223         lpfc_hba_free(phba);
11224         return error;
11225 }
11226
11227 /**
11228  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
11229  * @pdev: pointer to PCI device
11230  *
11231  * This routine is called from the kernel's PCI subsystem to device with
11232  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11233  * removed from PCI bus, it performs all the necessary cleanup for the HBA
11234  * device to be removed from the PCI subsystem properly.
11235  **/
11236 static void
11237 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
11238 {
11239         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11240         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11241         struct lpfc_vport **vports;
11242         struct lpfc_hba *phba = vport->phba;
11243         int i;
11244
11245         /* Mark the device unloading flag */
11246         spin_lock_irq(&phba->hbalock);
11247         vport->load_flag |= FC_UNLOADING;
11248         spin_unlock_irq(&phba->hbalock);
11249
11250         /* Free the HBA sysfs attributes */
11251         lpfc_free_sysfs_attr(vport);
11252
11253         /* Release all the vports against this physical port */
11254         vports = lpfc_create_vport_work_array(phba);
11255         if (vports != NULL)
11256                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11257                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11258                                 continue;
11259                         fc_vport_terminate(vports[i]->fc_vport);
11260                 }
11261         lpfc_destroy_vport_work_array(phba, vports);
11262
11263         /* Remove FC host and then SCSI host with the physical port */
11264         fc_remove_host(shost);
11265         scsi_remove_host(shost);
11266
11267         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
11268          * localports are destroyed after to cleanup all transport memory.
11269          */
11270         lpfc_cleanup(vport);
11271         lpfc_nvmet_destroy_targetport(phba);
11272         lpfc_nvme_destroy_localport(vport);
11273
11274         /*
11275          * Bring down the SLI Layer. This step disables all interrupts,
11276          * clears the rings, discards all mailbox commands, and resets
11277          * the HBA FCoE function.
11278          */
11279         lpfc_debugfs_terminate(vport);
11280         lpfc_sli4_hba_unset(phba);
11281
11282         spin_lock_irq(&phba->hbalock);
11283         list_del_init(&vport->listentry);
11284         spin_unlock_irq(&phba->hbalock);
11285
11286         /* Perform scsi free before driver resource_unset since scsi
11287          * buffers are released to their corresponding pools here.
11288          */
11289         lpfc_scsi_free(phba);
11290         lpfc_nvme_free(phba);
11291         lpfc_free_iocb_list(phba);
11292
11293         lpfc_sli4_driver_resource_unset(phba);
11294
11295         /* Unmap adapter Control and Doorbell registers */
11296         lpfc_sli4_pci_mem_unset(phba);
11297
11298         /* Release PCI resources and disable device's PCI function */
11299         scsi_host_put(shost);
11300         lpfc_disable_pci_dev(phba);
11301
11302         /* Finally, free the driver's device data structure */
11303         lpfc_hba_free(phba);
11304
11305         return;
11306 }
11307
11308 /**
11309  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
11310  * @pdev: pointer to PCI device
11311  * @msg: power management message
11312  *
11313  * This routine is called from the kernel's PCI subsystem to support system
11314  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
11315  * this method, it quiesces the device by stopping the driver's worker
11316  * thread for the device, turning off device's interrupt and DMA, and bring
11317  * the device offline. Note that as the driver implements the minimum PM
11318  * requirements to a power-aware driver's PM support for suspend/resume -- all
11319  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
11320  * method call will be treated as SUSPEND and the driver will fully
11321  * reinitialize its device during resume() method call, the driver will set
11322  * device to PCI_D3hot state in PCI config space instead of setting it
11323  * according to the @msg provided by the PM.
11324  *
11325  * Return code
11326  *      0 - driver suspended the device
11327  *      Error otherwise
11328  **/
11329 static int
11330 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
11331 {
11332         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11333         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11334
11335         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11336                         "2843 PCI device Power Management suspend.\n");
11337
11338         /* Bring down the device */
11339         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11340         lpfc_offline(phba);
11341         kthread_stop(phba->worker_thread);
11342
11343         /* Disable interrupt from device */
11344         lpfc_sli4_disable_intr(phba);
11345         lpfc_sli4_queue_destroy(phba);
11346
11347         /* Save device state to PCI config space */
11348         pci_save_state(pdev);
11349         pci_set_power_state(pdev, PCI_D3hot);
11350
11351         return 0;
11352 }
11353
11354 /**
11355  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
11356  * @pdev: pointer to PCI device
11357  *
11358  * This routine is called from the kernel's PCI subsystem to support system
11359  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
11360  * this method, it restores the device's PCI config space state and fully
11361  * reinitializes the device and brings it online. Note that as the driver
11362  * implements the minimum PM requirements to a power-aware driver's PM for
11363  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11364  * to the suspend() method call will be treated as SUSPEND and the driver
11365  * will fully reinitialize its device during resume() method call, the device
11366  * will be set to PCI_D0 directly in PCI config space before restoring the
11367  * state.
11368  *
11369  * Return code
11370  *      0 - driver suspended the device
11371  *      Error otherwise
11372  **/
11373 static int
11374 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
11375 {
11376         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11377         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11378         uint32_t intr_mode;
11379         int error;
11380
11381         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11382                         "0292 PCI device Power Management resume.\n");
11383
11384         /* Restore device state from PCI config space */
11385         pci_set_power_state(pdev, PCI_D0);
11386         pci_restore_state(pdev);
11387
11388         /*
11389          * As the new kernel behavior of pci_restore_state() API call clears
11390          * device saved_state flag, need to save the restored state again.
11391          */
11392         pci_save_state(pdev);
11393
11394         if (pdev->is_busmaster)
11395                 pci_set_master(pdev);
11396
11397          /* Startup the kernel thread for this host adapter. */
11398         phba->worker_thread = kthread_run(lpfc_do_work, phba,
11399                                         "lpfc_worker_%d", phba->brd_no);
11400         if (IS_ERR(phba->worker_thread)) {
11401                 error = PTR_ERR(phba->worker_thread);
11402                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11403                                 "0293 PM resume failed to start worker "
11404                                 "thread: error=x%x.\n", error);
11405                 return error;
11406         }
11407
11408         /* Configure and enable interrupt */
11409         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
11410         if (intr_mode == LPFC_INTR_ERROR) {
11411                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11412                                 "0294 PM resume Failed to enable interrupt\n");
11413                 return -EIO;
11414         } else
11415                 phba->intr_mode = intr_mode;
11416
11417         /* Restart HBA and bring it online */
11418         lpfc_sli_brdrestart(phba);
11419         lpfc_online(phba);
11420
11421         /* Log the current active interrupt mode */
11422         lpfc_log_intr_mode(phba, phba->intr_mode);
11423
11424         return 0;
11425 }
11426
11427 /**
11428  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
11429  * @phba: pointer to lpfc hba data structure.
11430  *
11431  * This routine is called to prepare the SLI4 device for PCI slot recover. It
11432  * aborts all the outstanding SCSI I/Os to the pci device.
11433  **/
11434 static void
11435 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
11436 {
11437         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11438                         "2828 PCI channel I/O abort preparing for recovery\n");
11439         /*
11440          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
11441          * and let the SCSI mid-layer to retry them to recover.
11442          */
11443         lpfc_sli_abort_fcp_rings(phba);
11444 }
11445
11446 /**
11447  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
11448  * @phba: pointer to lpfc hba data structure.
11449  *
11450  * This routine is called to prepare the SLI4 device for PCI slot reset. It
11451  * disables the device interrupt and pci device, and aborts the internal FCP
11452  * pending I/Os.
11453  **/
11454 static void
11455 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
11456 {
11457         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11458                         "2826 PCI channel disable preparing for reset\n");
11459
11460         /* Block any management I/Os to the device */
11461         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
11462
11463         /* Block all SCSI devices' I/Os on the host */
11464         lpfc_scsi_dev_block(phba);
11465
11466         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
11467         lpfc_sli_flush_fcp_rings(phba);
11468
11469         /* stop all timers */
11470         lpfc_stop_hba_timers(phba);
11471
11472         /* Disable interrupt and pci device */
11473         lpfc_sli4_disable_intr(phba);
11474         lpfc_sli4_queue_destroy(phba);
11475         pci_disable_device(phba->pcidev);
11476 }
11477
11478 /**
11479  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
11480  * @phba: pointer to lpfc hba data structure.
11481  *
11482  * This routine is called to prepare the SLI4 device for PCI slot permanently
11483  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
11484  * pending I/Os.
11485  **/
11486 static void
11487 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
11488 {
11489         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11490                         "2827 PCI channel permanent disable for failure\n");
11491
11492         /* Block all SCSI devices' I/Os on the host */
11493         lpfc_scsi_dev_block(phba);
11494
11495         /* stop all timers */
11496         lpfc_stop_hba_timers(phba);
11497
11498         /* Clean up all driver's outstanding SCSI I/Os */
11499         lpfc_sli_flush_fcp_rings(phba);
11500 }
11501
11502 /**
11503  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
11504  * @pdev: pointer to PCI device.
11505  * @state: the current PCI connection state.
11506  *
11507  * This routine is called from the PCI subsystem for error handling to device
11508  * with SLI-4 interface spec. This function is called by the PCI subsystem
11509  * after a PCI bus error affecting this device has been detected. When this
11510  * function is invoked, it will need to stop all the I/Os and interrupt(s)
11511  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
11512  * for the PCI subsystem to perform proper recovery as desired.
11513  *
11514  * Return codes
11515  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11516  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11517  **/
11518 static pci_ers_result_t
11519 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
11520 {
11521         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11522         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11523
11524         switch (state) {
11525         case pci_channel_io_normal:
11526                 /* Non-fatal error, prepare for recovery */
11527                 lpfc_sli4_prep_dev_for_recover(phba);
11528                 return PCI_ERS_RESULT_CAN_RECOVER;
11529         case pci_channel_io_frozen:
11530                 /* Fatal error, prepare for slot reset */
11531                 lpfc_sli4_prep_dev_for_reset(phba);
11532                 return PCI_ERS_RESULT_NEED_RESET;
11533         case pci_channel_io_perm_failure:
11534                 /* Permanent failure, prepare for device down */
11535                 lpfc_sli4_prep_dev_for_perm_failure(phba);
11536                 return PCI_ERS_RESULT_DISCONNECT;
11537         default:
11538                 /* Unknown state, prepare and request slot reset */
11539                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11540                                 "2825 Unknown PCI error state: x%x\n", state);
11541                 lpfc_sli4_prep_dev_for_reset(phba);
11542                 return PCI_ERS_RESULT_NEED_RESET;
11543         }
11544 }
11545
11546 /**
11547  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
11548  * @pdev: pointer to PCI device.
11549  *
11550  * This routine is called from the PCI subsystem for error handling to device
11551  * with SLI-4 interface spec. It is called after PCI bus has been reset to
11552  * restart the PCI card from scratch, as if from a cold-boot. During the
11553  * PCI subsystem error recovery, after the driver returns
11554  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
11555  * recovery and then call this routine before calling the .resume method to
11556  * recover the device. This function will initialize the HBA device, enable
11557  * the interrupt, but it will just put the HBA to offline state without
11558  * passing any I/O traffic.
11559  *
11560  * Return codes
11561  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11562  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11563  */
11564 static pci_ers_result_t
11565 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
11566 {
11567         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11568         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11569         struct lpfc_sli *psli = &phba->sli;
11570         uint32_t intr_mode;
11571
11572         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
11573         if (pci_enable_device_mem(pdev)) {
11574                 printk(KERN_ERR "lpfc: Cannot re-enable "
11575                         "PCI device after reset.\n");
11576                 return PCI_ERS_RESULT_DISCONNECT;
11577         }
11578
11579         pci_restore_state(pdev);
11580
11581         /*
11582          * As the new kernel behavior of pci_restore_state() API call clears
11583          * device saved_state flag, need to save the restored state again.
11584          */
11585         pci_save_state(pdev);
11586
11587         if (pdev->is_busmaster)
11588                 pci_set_master(pdev);
11589
11590         spin_lock_irq(&phba->hbalock);
11591         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
11592         spin_unlock_irq(&phba->hbalock);
11593
11594         /* Configure and enable interrupt */
11595         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
11596         if (intr_mode == LPFC_INTR_ERROR) {
11597                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11598                                 "2824 Cannot re-enable interrupt after "
11599                                 "slot reset.\n");
11600                 return PCI_ERS_RESULT_DISCONNECT;
11601         } else
11602                 phba->intr_mode = intr_mode;
11603
11604         /* Log the current active interrupt mode */
11605         lpfc_log_intr_mode(phba, phba->intr_mode);
11606
11607         return PCI_ERS_RESULT_RECOVERED;
11608 }
11609
11610 /**
11611  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
11612  * @pdev: pointer to PCI device
11613  *
11614  * This routine is called from the PCI subsystem for error handling to device
11615  * with SLI-4 interface spec. It is called when kernel error recovery tells
11616  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
11617  * error recovery. After this call, traffic can start to flow from this device
11618  * again.
11619  **/
11620 static void
11621 lpfc_io_resume_s4(struct pci_dev *pdev)
11622 {
11623         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11624         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11625
11626         /*
11627          * In case of slot reset, as function reset is performed through
11628          * mailbox command which needs DMA to be enabled, this operation
11629          * has to be moved to the io resume phase. Taking device offline
11630          * will perform the necessary cleanup.
11631          */
11632         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
11633                 /* Perform device reset */
11634                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11635                 lpfc_offline(phba);
11636                 lpfc_sli_brdrestart(phba);
11637                 /* Bring the device back online */
11638                 lpfc_online(phba);
11639         }
11640
11641         /* Clean up Advanced Error Reporting (AER) if needed */
11642         if (phba->hba_flag & HBA_AER_ENABLED)
11643                 pci_cleanup_aer_uncorrect_error_status(pdev);
11644 }
11645
11646 /**
11647  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
11648  * @pdev: pointer to PCI device
11649  * @pid: pointer to PCI device identifier
11650  *
11651  * This routine is to be registered to the kernel's PCI subsystem. When an
11652  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
11653  * at PCI device-specific information of the device and driver to see if the
11654  * driver state that it can support this kind of device. If the match is
11655  * successful, the driver core invokes this routine. This routine dispatches
11656  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
11657  * do all the initialization that it needs to do to handle the HBA device
11658  * properly.
11659  *
11660  * Return code
11661  *      0 - driver can claim the device
11662  *      negative value - driver can not claim the device
11663  **/
11664 static int
11665 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
11666 {
11667         int rc;
11668         struct lpfc_sli_intf intf;
11669
11670         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
11671                 return -ENODEV;
11672
11673         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
11674             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
11675                 rc = lpfc_pci_probe_one_s4(pdev, pid);
11676         else
11677                 rc = lpfc_pci_probe_one_s3(pdev, pid);
11678
11679         return rc;
11680 }
11681
11682 /**
11683  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
11684  * @pdev: pointer to PCI device
11685  *
11686  * This routine is to be registered to the kernel's PCI subsystem. When an
11687  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
11688  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
11689  * remove routine, which will perform all the necessary cleanup for the
11690  * device to be removed from the PCI subsystem properly.
11691  **/
11692 static void
11693 lpfc_pci_remove_one(struct pci_dev *pdev)
11694 {
11695         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11696         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11697
11698         switch (phba->pci_dev_grp) {
11699         case LPFC_PCI_DEV_LP:
11700                 lpfc_pci_remove_one_s3(pdev);
11701                 break;
11702         case LPFC_PCI_DEV_OC:
11703                 lpfc_pci_remove_one_s4(pdev);
11704                 break;
11705         default:
11706                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11707                                 "1424 Invalid PCI device group: 0x%x\n",
11708                                 phba->pci_dev_grp);
11709                 break;
11710         }
11711         return;
11712 }
11713
11714 /**
11715  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
11716  * @pdev: pointer to PCI device
11717  * @msg: power management message
11718  *
11719  * This routine is to be registered to the kernel's PCI subsystem to support
11720  * system Power Management (PM). When PM invokes this method, it dispatches
11721  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
11722  * suspend the device.
11723  *
11724  * Return code
11725  *      0 - driver suspended the device
11726  *      Error otherwise
11727  **/
11728 static int
11729 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
11730 {
11731         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11732         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11733         int rc = -ENODEV;
11734
11735         switch (phba->pci_dev_grp) {
11736         case LPFC_PCI_DEV_LP:
11737                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
11738                 break;
11739         case LPFC_PCI_DEV_OC:
11740                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
11741                 break;
11742         default:
11743                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11744                                 "1425 Invalid PCI device group: 0x%x\n",
11745                                 phba->pci_dev_grp);
11746                 break;
11747         }
11748         return rc;
11749 }
11750
11751 /**
11752  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
11753  * @pdev: pointer to PCI device
11754  *
11755  * This routine is to be registered to the kernel's PCI subsystem to support
11756  * system Power Management (PM). When PM invokes this method, it dispatches
11757  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
11758  * resume the device.
11759  *
11760  * Return code
11761  *      0 - driver suspended the device
11762  *      Error otherwise
11763  **/
11764 static int
11765 lpfc_pci_resume_one(struct pci_dev *pdev)
11766 {
11767         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11768         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11769         int rc = -ENODEV;
11770
11771         switch (phba->pci_dev_grp) {
11772         case LPFC_PCI_DEV_LP:
11773                 rc = lpfc_pci_resume_one_s3(pdev);
11774                 break;
11775         case LPFC_PCI_DEV_OC:
11776                 rc = lpfc_pci_resume_one_s4(pdev);
11777                 break;
11778         default:
11779                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11780                                 "1426 Invalid PCI device group: 0x%x\n",
11781                                 phba->pci_dev_grp);
11782                 break;
11783         }
11784         return rc;
11785 }
11786
11787 /**
11788  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
11789  * @pdev: pointer to PCI device.
11790  * @state: the current PCI connection state.
11791  *
11792  * This routine is registered to the PCI subsystem for error handling. This
11793  * function is called by the PCI subsystem after a PCI bus error affecting
11794  * this device has been detected. When this routine is invoked, it dispatches
11795  * the action to the proper SLI-3 or SLI-4 device error detected handling
11796  * routine, which will perform the proper error detected operation.
11797  *
11798  * Return codes
11799  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11800  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11801  **/
11802 static pci_ers_result_t
11803 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
11804 {
11805         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11806         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11807         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11808
11809         switch (phba->pci_dev_grp) {
11810         case LPFC_PCI_DEV_LP:
11811                 rc = lpfc_io_error_detected_s3(pdev, state);
11812                 break;
11813         case LPFC_PCI_DEV_OC:
11814                 rc = lpfc_io_error_detected_s4(pdev, state);
11815                 break;
11816         default:
11817                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11818                                 "1427 Invalid PCI device group: 0x%x\n",
11819                                 phba->pci_dev_grp);
11820                 break;
11821         }
11822         return rc;
11823 }
11824
11825 /**
11826  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
11827  * @pdev: pointer to PCI device.
11828  *
11829  * This routine is registered to the PCI subsystem for error handling. This
11830  * function is called after PCI bus has been reset to restart the PCI card
11831  * from scratch, as if from a cold-boot. When this routine is invoked, it
11832  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
11833  * routine, which will perform the proper device reset.
11834  *
11835  * Return codes
11836  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11837  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11838  **/
11839 static pci_ers_result_t
11840 lpfc_io_slot_reset(struct pci_dev *pdev)
11841 {
11842         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11843         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11844         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11845
11846         switch (phba->pci_dev_grp) {
11847         case LPFC_PCI_DEV_LP:
11848                 rc = lpfc_io_slot_reset_s3(pdev);
11849                 break;
11850         case LPFC_PCI_DEV_OC:
11851                 rc = lpfc_io_slot_reset_s4(pdev);
11852                 break;
11853         default:
11854                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11855                                 "1428 Invalid PCI device group: 0x%x\n",
11856                                 phba->pci_dev_grp);
11857                 break;
11858         }
11859         return rc;
11860 }
11861
11862 /**
11863  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
11864  * @pdev: pointer to PCI device
11865  *
11866  * This routine is registered to the PCI subsystem for error handling. It
11867  * is called when kernel error recovery tells the lpfc driver that it is
11868  * OK to resume normal PCI operation after PCI bus error recovery. When
11869  * this routine is invoked, it dispatches the action to the proper SLI-3
11870  * or SLI-4 device io_resume routine, which will resume the device operation.
11871  **/
11872 static void
11873 lpfc_io_resume(struct pci_dev *pdev)
11874 {
11875         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11876         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11877
11878         switch (phba->pci_dev_grp) {
11879         case LPFC_PCI_DEV_LP:
11880                 lpfc_io_resume_s3(pdev);
11881                 break;
11882         case LPFC_PCI_DEV_OC:
11883                 lpfc_io_resume_s4(pdev);
11884                 break;
11885         default:
11886                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11887                                 "1429 Invalid PCI device group: 0x%x\n",
11888                                 phba->pci_dev_grp);
11889                 break;
11890         }
11891         return;
11892 }
11893
11894 /**
11895  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
11896  * @phba: pointer to lpfc hba data structure.
11897  *
11898  * This routine checks to see if OAS is supported for this adapter. If
11899  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
11900  * the enable oas flag is cleared and the pool created for OAS device data
11901  * is destroyed.
11902  *
11903  **/
11904 void
11905 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
11906 {
11907
11908         if (!phba->cfg_EnableXLane)
11909                 return;
11910
11911         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
11912                 phba->cfg_fof = 1;
11913         } else {
11914                 phba->cfg_fof = 0;
11915                 if (phba->device_data_mem_pool)
11916                         mempool_destroy(phba->device_data_mem_pool);
11917                 phba->device_data_mem_pool = NULL;
11918         }
11919
11920         return;
11921 }
11922
11923 /**
11924  * lpfc_fof_queue_setup - Set up all the fof queues
11925  * @phba: pointer to lpfc hba data structure.
11926  *
11927  * This routine is invoked to set up all the fof queues for the FC HBA
11928  * operation.
11929  *
11930  * Return codes
11931  *      0 - successful
11932  *      -ENOMEM - No available memory
11933  **/
11934 int
11935 lpfc_fof_queue_setup(struct lpfc_hba *phba)
11936 {
11937         struct lpfc_sli_ring *pring;
11938         int rc;
11939
11940         rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
11941         if (rc)
11942                 return -ENOMEM;
11943
11944         if (phba->cfg_fof) {
11945
11946                 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
11947                                     phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
11948                 if (rc)
11949                         goto out_oas_cq;
11950
11951                 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
11952                                     phba->sli4_hba.oas_cq, LPFC_FCP);
11953                 if (rc)
11954                         goto out_oas_wq;
11955
11956                 /* Bind this CQ/WQ to the NVME ring */
11957                 pring = phba->sli4_hba.oas_wq->pring;
11958                 pring->sli.sli4.wqp =
11959                         (void *)phba->sli4_hba.oas_wq;
11960                 phba->sli4_hba.oas_cq->pring = pring;
11961         }
11962
11963         return 0;
11964
11965 out_oas_wq:
11966         lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
11967 out_oas_cq:
11968         lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
11969         return rc;
11970
11971 }
11972
11973 /**
11974  * lpfc_fof_queue_create - Create all the fof queues
11975  * @phba: pointer to lpfc hba data structure.
11976  *
11977  * This routine is invoked to allocate all the fof queues for the FC HBA
11978  * operation. For each SLI4 queue type, the parameters such as queue entry
11979  * count (queue depth) shall be taken from the module parameter. For now,
11980  * we just use some constant number as place holder.
11981  *
11982  * Return codes
11983  *      0 - successful
11984  *      -ENOMEM - No availble memory
11985  *      -EIO - The mailbox failed to complete successfully.
11986  **/
11987 int
11988 lpfc_fof_queue_create(struct lpfc_hba *phba)
11989 {
11990         struct lpfc_queue *qdesc;
11991         uint32_t wqesize;
11992
11993         /* Create FOF EQ */
11994         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
11995                                       phba->sli4_hba.eq_ecount);
11996         if (!qdesc)
11997                 goto out_error;
11998
11999         phba->sli4_hba.fof_eq = qdesc;
12000
12001         if (phba->cfg_fof) {
12002
12003                 /* Create OAS CQ */
12004                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
12005                                                       phba->sli4_hba.cq_ecount);
12006                 if (!qdesc)
12007                         goto out_error;
12008
12009                 phba->sli4_hba.oas_cq = qdesc;
12010
12011                 /* Create OAS WQ */
12012                 wqesize = (phba->fcp_embed_io) ?
12013                                 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
12014                 qdesc = lpfc_sli4_queue_alloc(phba, wqesize,
12015                                               phba->sli4_hba.wq_ecount);
12016
12017                 if (!qdesc)
12018                         goto out_error;
12019
12020                 phba->sli4_hba.oas_wq = qdesc;
12021                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
12022
12023         }
12024         return 0;
12025
12026 out_error:
12027         lpfc_fof_queue_destroy(phba);
12028         return -ENOMEM;
12029 }
12030
12031 /**
12032  * lpfc_fof_queue_destroy - Destroy all the fof queues
12033  * @phba: pointer to lpfc hba data structure.
12034  *
12035  * This routine is invoked to release all the SLI4 queues with the FC HBA
12036  * operation.
12037  *
12038  * Return codes
12039  *      0 - successful
12040  **/
12041 int
12042 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
12043 {
12044         /* Release FOF Event queue */
12045         if (phba->sli4_hba.fof_eq != NULL) {
12046                 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
12047                 phba->sli4_hba.fof_eq = NULL;
12048         }
12049
12050         /* Release OAS Completion queue */
12051         if (phba->sli4_hba.oas_cq != NULL) {
12052                 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
12053                 phba->sli4_hba.oas_cq = NULL;
12054         }
12055
12056         /* Release OAS Work queue */
12057         if (phba->sli4_hba.oas_wq != NULL) {
12058                 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
12059                 phba->sli4_hba.oas_wq = NULL;
12060         }
12061         return 0;
12062 }
12063
12064 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
12065
12066 static const struct pci_error_handlers lpfc_err_handler = {
12067         .error_detected = lpfc_io_error_detected,
12068         .slot_reset = lpfc_io_slot_reset,
12069         .resume = lpfc_io_resume,
12070 };
12071
12072 static struct pci_driver lpfc_driver = {
12073         .name           = LPFC_DRIVER_NAME,
12074         .id_table       = lpfc_id_table,
12075         .probe          = lpfc_pci_probe_one,
12076         .remove         = lpfc_pci_remove_one,
12077         .shutdown       = lpfc_pci_remove_one,
12078         .suspend        = lpfc_pci_suspend_one,
12079         .resume         = lpfc_pci_resume_one,
12080         .err_handler    = &lpfc_err_handler,
12081 };
12082
12083 static const struct file_operations lpfc_mgmt_fop = {
12084         .owner = THIS_MODULE,
12085 };
12086
12087 static struct miscdevice lpfc_mgmt_dev = {
12088         .minor = MISC_DYNAMIC_MINOR,
12089         .name = "lpfcmgmt",
12090         .fops = &lpfc_mgmt_fop,
12091 };
12092
12093 /**
12094  * lpfc_init - lpfc module initialization routine
12095  *
12096  * This routine is to be invoked when the lpfc module is loaded into the
12097  * kernel. The special kernel macro module_init() is used to indicate the
12098  * role of this routine to the kernel as lpfc module entry point.
12099  *
12100  * Return codes
12101  *   0 - successful
12102  *   -ENOMEM - FC attach transport failed
12103  *   all others - failed
12104  */
12105 static int __init
12106 lpfc_init(void)
12107 {
12108         int error = 0;
12109
12110         printk(LPFC_MODULE_DESC "\n");
12111         printk(LPFC_COPYRIGHT "\n");
12112
12113         error = misc_register(&lpfc_mgmt_dev);
12114         if (error)
12115                 printk(KERN_ERR "Could not register lpfcmgmt device, "
12116                         "misc_register returned with status %d", error);
12117
12118         lpfc_transport_functions.vport_create = lpfc_vport_create;
12119         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
12120         lpfc_transport_template =
12121                                 fc_attach_transport(&lpfc_transport_functions);
12122         if (lpfc_transport_template == NULL)
12123                 return -ENOMEM;
12124         lpfc_vport_transport_template =
12125                 fc_attach_transport(&lpfc_vport_transport_functions);
12126         if (lpfc_vport_transport_template == NULL) {
12127                 fc_release_transport(lpfc_transport_template);
12128                 return -ENOMEM;
12129         }
12130
12131         /* Initialize in case vector mapping is needed */
12132         lpfc_used_cpu = NULL;
12133         lpfc_present_cpu = num_present_cpus();
12134
12135         error = pci_register_driver(&lpfc_driver);
12136         if (error) {
12137                 fc_release_transport(lpfc_transport_template);
12138                 fc_release_transport(lpfc_vport_transport_template);
12139         }
12140
12141         return error;
12142 }
12143
12144 /**
12145  * lpfc_exit - lpfc module removal routine
12146  *
12147  * This routine is invoked when the lpfc module is removed from the kernel.
12148  * The special kernel macro module_exit() is used to indicate the role of
12149  * this routine to the kernel as lpfc module exit point.
12150  */
12151 static void __exit
12152 lpfc_exit(void)
12153 {
12154         misc_deregister(&lpfc_mgmt_dev);
12155         pci_unregister_driver(&lpfc_driver);
12156         fc_release_transport(lpfc_transport_template);
12157         fc_release_transport(lpfc_vport_transport_template);
12158         if (_dump_buf_data) {
12159                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
12160                                 "_dump_buf_data at 0x%p\n",
12161                                 (1L << _dump_buf_data_order), _dump_buf_data);
12162                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
12163         }
12164
12165         if (_dump_buf_dif) {
12166                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
12167                                 "_dump_buf_dif at 0x%p\n",
12168                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
12169                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
12170         }
12171         kfree(lpfc_used_cpu);
12172         idr_destroy(&lpfc_hba_index);
12173 }
12174
12175 module_init(lpfc_init);
12176 module_exit(lpfc_exit);
12177 MODULE_LICENSE("GPL");
12178 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
12179 MODULE_AUTHOR("Broadcom");
12180 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);