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) 2004-2012 Emulex.  All rights reserved.           *
   5  * EMULEX and SLI are trademarks of Emulex.                        *
   6  * www.emulex.com                                                  *
   7  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
   8  *                                                                 *
   9  * This program is free software; you can redistribute it and/or   *
  10  * modify it under the terms of version 2 of the GNU General       *
  11  * Public License as published by the Free Software Foundation.    *
  12  * This program is distributed in the hope that it will be useful. *
  13  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  14  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  15  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  16  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  17  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  18  * more details, a copy of which can be found in the file COPYING  *
  19  * included with this package.                                     *
  20  *******************************************************************/
  21
  22 #include <linux/blkdev.h>
  23 #include <linux/delay.h>
  24 #include <linux/dma-mapping.h>
  25 #include <linux/idr.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/module.h>
  28 #include <linux/kthread.h>
  29 #include <linux/pci.h>
  30 #include <linux/spinlock.h>
  31 #include <linux/ctype.h>
  32 #include <linux/aer.h>
  33 #include <linux/slab.h>
  34 #include <linux/firmware.h>
  35 #include <linux/miscdevice.h>
  36 #include <linux/percpu.h>
  37
  38 #include <scsi/scsi.h>
  39 #include <scsi/scsi_device.h>
  40 #include <scsi/scsi_host.h>
  41 #include <scsi/scsi_transport_fc.h>
  42
  43 #include "lpfc_hw4.h"
  44 #include "lpfc_hw.h"
  45 #include "lpfc_sli.h"
  46 #include "lpfc_sli4.h"
  47 #include "lpfc_nl.h"
  48 #include "lpfc_disc.h"
  49 #include "lpfc_scsi.h"
  50 #include "lpfc.h"
  51 #include "lpfc_logmsg.h"
  52 #include "lpfc_crtn.h"
  53 #include "lpfc_vport.h"
  54 #include "lpfc_version.h"
  55
  56 char *_dump_buf_data;
  57 unsigned long _dump_buf_data_order;
  58 char *_dump_buf_dif;
  59 unsigned long _dump_buf_dif_order;
  60 spinlock_t _dump_buf_lock;
  61
  62 /* Used when mapping IRQ vectors in a driver centric manner */
  63 uint16_t lpfc_used_cpu[LPFC_MAX_CPU];
  64
  65 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  66 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  67 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  68 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  69 static int lpfc_setup_endian_order(struct lpfc_hba *);
  70 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  71 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  72 static void lpfc_init_sgl_list(struct lpfc_hba *);
  73 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  74 static void lpfc_free_active_sgl(struct lpfc_hba *);
  75 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  76 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  77 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  78 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  79 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  80 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  81 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  82
  83 static struct scsi_transport_template *lpfc_transport_template = NULL;
  84 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  85 static DEFINE_IDR(lpfc_hba_index);
  86
  87 /**
  88  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  89  * @phba: pointer to lpfc hba data structure.
  90  *
  91  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  92  * mailbox command. It retrieves the revision information from the HBA and
  93  * collects the Vital Product Data (VPD) about the HBA for preparing the
  94  * configuration of the HBA.
  95  *
  96  * Return codes:
  97  *   0 - success.
  98  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
  99  *   Any other value - indicates an error.
 100  **/
 101 int
 102 lpfc_config_port_prep(struct lpfc_hba *phba)
 103 {
 104         lpfc_vpd_t *vp = &phba->vpd;
 105         int i = 0, rc;
 106         LPFC_MBOXQ_t *pmb;
 107         MAILBOX_t *mb;
 108         char *lpfc_vpd_data = NULL;
 109         uint16_t offset = 0;
 110         static char licensed[56] =
 111                     "key unlock for use with gnu public licensed code only\0";
 112         static int init_key = 1;
 113
 114         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 115         if (!pmb) {
 116                 phba->link_state = LPFC_HBA_ERROR;
 117                 return -ENOMEM;
 118         }
 119
 120         mb = &pmb->u.mb;
 121         phba->link_state = LPFC_INIT_MBX_CMDS;
 122
 123         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 124                 if (init_key) {
 125                         uint32_t *ptext = (uint32_t *) licensed;
 126
 127                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 128                                 *ptext = cpu_to_be32(*ptext);
 129                         init_key = 0;
 130                 }
 131
 132                 lpfc_read_nv(phba, pmb);
 133                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 134                         sizeof (mb->un.varRDnvp.rsvd3));
 135                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 136                          sizeof (licensed));
 137
 138                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 139
 140                 if (rc != MBX_SUCCESS) {
 141                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 142                                         "0324 Config Port initialization "
 143                                         "error, mbxCmd x%x READ_NVPARM, "
 144                                         "mbxStatus x%x\n",
 145                                         mb->mbxCommand, mb->mbxStatus);
 146                         mempool_free(pmb, phba->mbox_mem_pool);
 147                         return -ERESTART;
 148                 }
 149                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 150                        sizeof(phba->wwnn));
 151                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 152                        sizeof(phba->wwpn));
 153         }
 154
 155         phba->sli3_options = 0x0;
 156
 157         /* Setup and issue mailbox READ REV command */
 158         lpfc_read_rev(phba, pmb);
 159         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 160         if (rc != MBX_SUCCESS) {
 161                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 162                                 "0439 Adapter failed to init, mbxCmd x%x "
 163                                 "READ_REV, mbxStatus x%x\n",
 164                                 mb->mbxCommand, mb->mbxStatus);
 165                 mempool_free( pmb, phba->mbox_mem_pool);
 166                 return -ERESTART;
 167         }
 168
 169
 170         /*
 171          * The value of rr must be 1 since the driver set the cv field to 1.
 172          * This setting requires the FW to set all revision fields.
 173          */
 174         if (mb->un.varRdRev.rr == 0) {
 175                 vp->rev.rBit = 0;
 176                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 177                                 "0440 Adapter failed to init, READ_REV has "
 178                                 "missing revision information.\n");
 179                 mempool_free(pmb, phba->mbox_mem_pool);
 180                 return -ERESTART;
 181         }
 182
 183         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 184                 mempool_free(pmb, phba->mbox_mem_pool);
 185                 return -EINVAL;
 186         }
 187
 188         /* Save information as VPD data */
 189         vp->rev.rBit = 1;
 190         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 191         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 192         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 193         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 194         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 195         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 196         vp->rev.smRev = mb->un.varRdRev.smRev;
 197         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 198         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 199         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 200         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 201         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 202         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 203         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 204         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 205
 206         /* If the sli feature level is less then 9, we must
 207          * tear down all RPIs and VPIs on link down if NPIV
 208          * is enabled.
 209          */
 210         if (vp->rev.feaLevelHigh < 9)
 211                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 212
 213         if (lpfc_is_LC_HBA(phba->pcidev->device))
 214                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 215                                                 sizeof (phba->RandomData));
 216
 217         /* Get adapter VPD information */
 218         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 219         if (!lpfc_vpd_data)
 220                 goto out_free_mbox;
 221         do {
 222                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 223                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 224
 225                 if (rc != MBX_SUCCESS) {
 226                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 227                                         "0441 VPD not present on adapter, "
 228                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 229                                         mb->mbxCommand, mb->mbxStatus);
 230                         mb->un.varDmp.word_cnt = 0;
 231                 }
 232                 /* dump mem may return a zero when finished or we got a
 233                  * mailbox error, either way we are done.
 234                  */
 235                 if (mb->un.varDmp.word_cnt == 0)
 236                         break;
 237                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 238                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 239                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 240                                       lpfc_vpd_data + offset,
 241                                       mb->un.varDmp.word_cnt);
 242                 offset += mb->un.varDmp.word_cnt;
 243         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 244         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 245
 246         kfree(lpfc_vpd_data);
 247 out_free_mbox:
 248         mempool_free(pmb, phba->mbox_mem_pool);
 249         return 0;
 250 }
 251
 252 /**
 253  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 254  * @phba: pointer to lpfc hba data structure.
 255  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 256  *
 257  * This is the completion handler for driver's configuring asynchronous event
 258  * mailbox command to the device. If the mailbox command returns successfully,
 259  * it will set internal async event support flag to 1; otherwise, it will
 260  * set internal async event support flag to 0.
 261  **/
 262 static void
 263 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 264 {
 265         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 266                 phba->temp_sensor_support = 1;
 267         else
 268                 phba->temp_sensor_support = 0;
 269         mempool_free(pmboxq, phba->mbox_mem_pool);
 270         return;
 271 }
 272
 273 /**
 274  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 275  * @phba: pointer to lpfc hba data structure.
 276  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 277  *
 278  * This is the completion handler for dump mailbox command for getting
 279  * wake up parameters. When this command complete, the response contain
 280  * Option rom version of the HBA. This function translate the version number
 281  * into a human readable string and store it in OptionROMVersion.
 282  **/
 283 static void
 284 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 285 {
 286         struct prog_id *prg;
 287         uint32_t prog_id_word;
 288         char dist = ' ';
 289         /* character array used for decoding dist type. */
 290         char dist_char[] = "nabx";
 291
 292         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 293                 mempool_free(pmboxq, phba->mbox_mem_pool);
 294                 return;
 295         }
 296
 297         prg = (struct prog_id *) &prog_id_word;
 298
 299         /* word 7 contain option rom version */
 300         prog_id_word = pmboxq->u.mb.un.varWords[7];
 301
 302         /* Decode the Option rom version word to a readable string */
 303         if (prg->dist < 4)
 304                 dist = dist_char[prg->dist];
 305
 306         if ((prg->dist == 3) && (prg->num == 0))
 307                 sprintf(phba->OptionROMVersion, "%d.%d%d",
 308                         prg->ver, prg->rev, prg->lev);
 309         else
 310                 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
 311                         prg->ver, prg->rev, prg->lev,
 312                         dist, prg->num);
 313         mempool_free(pmboxq, phba->mbox_mem_pool);
 314         return;
 315 }
 316
 317 /**
 318  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 319  *      cfg_soft_wwnn, cfg_soft_wwpn
 320  * @vport: pointer to lpfc vport data structure.
 321  *
 322  *
 323  * Return codes
 324  *   None.
 325  **/
 326 void
 327 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 328 {
 329         /* If the soft name exists then update it using the service params */
 330         if (vport->phba->cfg_soft_wwnn)
 331                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 332                            vport->fc_sparam.nodeName.u.wwn);
 333         if (vport->phba->cfg_soft_wwpn)
 334                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 335                            vport->fc_sparam.portName.u.wwn);
 336
 337         /*
 338          * If the name is empty or there exists a soft name
 339          * then copy the service params name, otherwise use the fc name
 340          */
 341         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 342                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 343                         sizeof(struct lpfc_name));
 344         else
 345                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 346                         sizeof(struct lpfc_name));
 347
 348         if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
 349                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 350                         sizeof(struct lpfc_name));
 351         else
 352                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 353                         sizeof(struct lpfc_name));
 354 }
 355
 356 /**
 357  * lpfc_config_port_post - Perform lpfc initialization after config port
 358  * @phba: pointer to lpfc hba data structure.
 359  *
 360  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 361  * command call. It performs all internal resource and state setups on the
 362  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 363  * ELS ring timers, etc.
 364  *
 365  * Return codes
 366  *   0 - success.
 367  *   Any other value - error.
 368  **/
 369 int
 370 lpfc_config_port_post(struct lpfc_hba *phba)
 371 {
 372         struct lpfc_vport *vport = phba->pport;
 373         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 374         LPFC_MBOXQ_t *pmb;
 375         MAILBOX_t *mb;
 376         struct lpfc_dmabuf *mp;
 377         struct lpfc_sli *psli = &phba->sli;
 378         uint32_t status, timeout;
 379         int i, j;
 380         int rc;
 381
 382         spin_lock_irq(&phba->hbalock);
 383         /*
 384          * If the Config port completed correctly the HBA is not
 385          * over heated any more.
 386          */
 387         if (phba->over_temp_state == HBA_OVER_TEMP)
 388                 phba->over_temp_state = HBA_NORMAL_TEMP;
 389         spin_unlock_irq(&phba->hbalock);
 390
 391         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 392         if (!pmb) {
 393                 phba->link_state = LPFC_HBA_ERROR;
 394                 return -ENOMEM;
 395         }
 396         mb = &pmb->u.mb;
 397
 398         /* Get login parameters for NID.  */
 399         rc = lpfc_read_sparam(phba, pmb, 0);
 400         if (rc) {
 401                 mempool_free(pmb, phba->mbox_mem_pool);
 402                 return -ENOMEM;
 403         }
 404
 405         pmb->vport = vport;
 406         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 407                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 408                                 "0448 Adapter failed init, mbxCmd x%x "
 409                                 "READ_SPARM mbxStatus x%x\n",
 410                                 mb->mbxCommand, mb->mbxStatus);
 411                 phba->link_state = LPFC_HBA_ERROR;
 412                 mp = (struct lpfc_dmabuf *) pmb->context1;
 413                 mempool_free(pmb, phba->mbox_mem_pool);
 414                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 415                 kfree(mp);
 416                 return -EIO;
 417         }
 418
 419         mp = (struct lpfc_dmabuf *) pmb->context1;
 420
 421         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 422         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 423         kfree(mp);
 424         pmb->context1 = NULL;
 425         lpfc_update_vport_wwn(vport);
 426
 427         /* Update the fc_host data structures with new wwn. */
 428         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 429         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 430         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 431
 432         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 433         /* This should be consolidated into parse_vpd ? - mr */
 434         if (phba->SerialNumber[0] == 0) {
 435                 uint8_t *outptr;
 436
 437                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 438                 for (i = 0; i < 12; i++) {
 439                         status = *outptr++;
 440                         j = ((status & 0xf0) >> 4);
 441                         if (j <= 9)
 442                                 phba->SerialNumber[i] =
 443                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 444                         else
 445                                 phba->SerialNumber[i] =
 446                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 447                         i++;
 448                         j = (status & 0xf);
 449                         if (j <= 9)
 450                                 phba->SerialNumber[i] =
 451                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 452                         else
 453                                 phba->SerialNumber[i] =
 454                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 455                 }
 456         }
 457
 458         lpfc_read_config(phba, pmb);
 459         pmb->vport = vport;
 460         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 461                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 462                                 "0453 Adapter failed to init, mbxCmd x%x "
 463                                 "READ_CONFIG, mbxStatus x%x\n",
 464                                 mb->mbxCommand, mb->mbxStatus);
 465                 phba->link_state = LPFC_HBA_ERROR;
 466                 mempool_free( pmb, phba->mbox_mem_pool);
 467                 return -EIO;
 468         }
 469
 470         /* Check if the port is disabled */
 471         lpfc_sli_read_link_ste(phba);
 472
 473         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 474         if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
 475                 phba->cfg_hba_queue_depth =
 476                         (mb->un.varRdConfig.max_xri + 1) -
 477                                         lpfc_sli4_get_els_iocb_cnt(phba);
 478
 479         phba->lmt = mb->un.varRdConfig.lmt;
 480
 481         /* Get the default values for Model Name and Description */
 482         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 483
 484         phba->link_state = LPFC_LINK_DOWN;
 485
 486         /* Only process IOCBs on ELS ring till hba_state is READY */
 487         if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
 488                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 489         if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
 490                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 491         if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
 492                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 493
 494         /* Post receive buffers for desired rings */
 495         if (phba->sli_rev != 3)
 496                 lpfc_post_rcv_buf(phba);
 497
 498         /*
 499          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 500          */
 501         if (phba->intr_type == MSIX) {
 502                 rc = lpfc_config_msi(phba, pmb);
 503                 if (rc) {
 504                         mempool_free(pmb, phba->mbox_mem_pool);
 505                         return -EIO;
 506                 }
 507                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 508                 if (rc != MBX_SUCCESS) {
 509                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 510                                         "0352 Config MSI mailbox command "
 511                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 512                                         pmb->u.mb.mbxCommand,
 513                                         pmb->u.mb.mbxStatus);
 514                         mempool_free(pmb, phba->mbox_mem_pool);
 515                         return -EIO;
 516                 }
 517         }
 518
 519         spin_lock_irq(&phba->hbalock);
 520         /* Initialize ERATT handling flag */
 521         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 522
 523         /* Enable appropriate host interrupts */
 524         if (lpfc_readl(phba->HCregaddr, &status)) {
 525                 spin_unlock_irq(&phba->hbalock);
 526                 return -EIO;
 527         }
 528         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 529         if (psli->num_rings > 0)
 530                 status |= HC_R0INT_ENA;
 531         if (psli->num_rings > 1)
 532                 status |= HC_R1INT_ENA;
 533         if (psli->num_rings > 2)
 534                 status |= HC_R2INT_ENA;
 535         if (psli->num_rings > 3)
 536                 status |= HC_R3INT_ENA;
 537
 538         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 539             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 540                 status &= ~(HC_R0INT_ENA);
 541
 542         writel(status, phba->HCregaddr);
 543         readl(phba->HCregaddr); /* flush */
 544         spin_unlock_irq(&phba->hbalock);
 545
 546         /* Set up ring-0 (ELS) timer */
 547         timeout = phba->fc_ratov * 2;
 548         mod_timer(&vport->els_tmofunc,
 549                   jiffies + msecs_to_jiffies(1000 * timeout));
 550         /* Set up heart beat (HB) timer */
 551         mod_timer(&phba->hb_tmofunc,
 552                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 553         phba->hb_outstanding = 0;
 554         phba->last_completion_time = jiffies;
 555         /* Set up error attention (ERATT) polling timer */
 556         mod_timer(&phba->eratt_poll,
 557                   jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
 558
 559         if (phba->hba_flag & LINK_DISABLED) {
 560                 lpfc_printf_log(phba,
 561                         KERN_ERR, LOG_INIT,
 562                         "2598 Adapter Link is disabled.\n");
 563                 lpfc_down_link(phba, pmb);
 564                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 565                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 566                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 567                         lpfc_printf_log(phba,
 568                         KERN_ERR, LOG_INIT,
 569                         "2599 Adapter failed to issue DOWN_LINK"
 570                         " mbox command rc 0x%x\n", rc);
 571
 572                         mempool_free(pmb, phba->mbox_mem_pool);
 573                         return -EIO;
 574                 }
 575         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 576                 mempool_free(pmb, phba->mbox_mem_pool);
 577                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 578                 if (rc)
 579                         return rc;
 580         }
 581         /* MBOX buffer will be freed in mbox compl */
 582         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 583         if (!pmb) {
 584                 phba->link_state = LPFC_HBA_ERROR;
 585                 return -ENOMEM;
 586         }
 587
 588         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 589         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 590         pmb->vport = phba->pport;
 591         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 592
 593         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 594                 lpfc_printf_log(phba,
 595                                 KERN_ERR,
 596                                 LOG_INIT,
 597                                 "0456 Adapter failed to issue "
 598                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 599                                 rc);
 600                 mempool_free(pmb, phba->mbox_mem_pool);
 601         }
 602
 603         /* Get Option rom version */
 604         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 605         if (!pmb) {
 606                 phba->link_state = LPFC_HBA_ERROR;
 607                 return -ENOMEM;
 608         }
 609
 610         lpfc_dump_wakeup_param(phba, pmb);
 611         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 612         pmb->vport = phba->pport;
 613         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 614
 615         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 616                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 617                                 "to get Option ROM version status x%x\n", rc);
 618                 mempool_free(pmb, phba->mbox_mem_pool);
 619         }
 620
 621         return 0;
 622 }
 623
 624 /**
 625  * lpfc_hba_init_link - Initialize the FC link
 626  * @phba: pointer to lpfc hba data structure.
 627  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 628  *
 629  * This routine will issue the INIT_LINK mailbox command call.
 630  * It is available to other drivers through the lpfc_hba data
 631  * structure for use as a delayed link up mechanism with the
 632  * module parameter lpfc_suppress_link_up.
 633  *
 634  * Return code
 635  *              0 - success
 636  *              Any other value - error
 637  **/
 638 int
 639 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 640 {
 641         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 642 }
 643
 644 /**
 645  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 646  * @phba: pointer to lpfc hba data structure.
 647  * @fc_topology: desired fc topology.
 648  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 649  *
 650  * This routine will issue the INIT_LINK mailbox command call.
 651  * It is available to other drivers through the lpfc_hba data
 652  * structure for use as a delayed link up mechanism with the
 653  * module parameter lpfc_suppress_link_up.
 654  *
 655  * Return code
 656  *              0 - success
 657  *              Any other value - error
 658  **/
 659 int
 660 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 661                                uint32_t flag)
 662 {
 663         struct lpfc_vport *vport = phba->pport;
 664         LPFC_MBOXQ_t *pmb;
 665         MAILBOX_t *mb;
 666         int rc;
 667
 668         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 669         if (!pmb) {
 670                 phba->link_state = LPFC_HBA_ERROR;
 671                 return -ENOMEM;
 672         }
 673         mb = &pmb->u.mb;
 674         pmb->vport = vport;
 675
 676         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 677             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 678              !(phba->lmt & LMT_1Gb)) ||
 679             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 680              !(phba->lmt & LMT_2Gb)) ||
 681             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 682              !(phba->lmt & LMT_4Gb)) ||
 683             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 684              !(phba->lmt & LMT_8Gb)) ||
 685             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 686              !(phba->lmt & LMT_10Gb)) ||
 687             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 688              !(phba->lmt & LMT_16Gb))) {
 689                 /* Reset link speed to auto */
 690                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 691                         "1302 Invalid speed for this board:%d "
 692                         "Reset link speed to auto.\n",
 693                         phba->cfg_link_speed);
 694                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 695         }
 696         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 697         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 698         if (phba->sli_rev < LPFC_SLI_REV4)
 699                 lpfc_set_loopback_flag(phba);
 700         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 701         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 702                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 703                         "0498 Adapter failed to init, mbxCmd x%x "
 704                         "INIT_LINK, mbxStatus x%x\n",
 705                         mb->mbxCommand, mb->mbxStatus);
 706                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 707                         /* Clear all interrupt enable conditions */
 708                         writel(0, phba->HCregaddr);
 709                         readl(phba->HCregaddr); /* flush */
 710                         /* Clear all pending interrupts */
 711                         writel(0xffffffff, phba->HAregaddr);
 712                         readl(phba->HAregaddr); /* flush */
 713                 }
 714                 phba->link_state = LPFC_HBA_ERROR;
 715                 if (rc != MBX_BUSY || flag == MBX_POLL)
 716                         mempool_free(pmb, phba->mbox_mem_pool);
 717                 return -EIO;
 718         }
 719         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 720         if (flag == MBX_POLL)
 721                 mempool_free(pmb, phba->mbox_mem_pool);
 722
 723         return 0;
 724 }
 725
 726 /**
 727  * lpfc_hba_down_link - this routine downs the FC link
 728  * @phba: pointer to lpfc hba data structure.
 729  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 730  *
 731  * This routine will issue the DOWN_LINK mailbox command call.
 732  * It is available to other drivers through the lpfc_hba data
 733  * structure for use to stop the link.
 734  *
 735  * Return code
 736  *              0 - success
 737  *              Any other value - error
 738  **/
 739 int
 740 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 741 {
 742         LPFC_MBOXQ_t *pmb;
 743         int rc;
 744
 745         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 746         if (!pmb) {
 747                 phba->link_state = LPFC_HBA_ERROR;
 748                 return -ENOMEM;
 749         }
 750
 751         lpfc_printf_log(phba,
 752                 KERN_ERR, LOG_INIT,
 753                 "0491 Adapter Link is disabled.\n");
 754         lpfc_down_link(phba, pmb);
 755         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 756         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 757         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 758                 lpfc_printf_log(phba,
 759                 KERN_ERR, LOG_INIT,
 760                 "2522 Adapter failed to issue DOWN_LINK"
 761                 " mbox command rc 0x%x\n", rc);
 762
 763                 mempool_free(pmb, phba->mbox_mem_pool);
 764                 return -EIO;
 765         }
 766         if (flag == MBX_POLL)
 767                 mempool_free(pmb, phba->mbox_mem_pool);
 768
 769         return 0;
 770 }
 771
 772 /**
 773  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 774  * @phba: pointer to lpfc HBA data structure.
 775  *
 776  * This routine will do LPFC uninitialization before the HBA is reset when
 777  * bringing down the SLI Layer.
 778  *
 779  * Return codes
 780  *   0 - success.
 781  *   Any other value - error.
 782  **/
 783 int
 784 lpfc_hba_down_prep(struct lpfc_hba *phba)
 785 {
 786         struct lpfc_vport **vports;
 787         int i;
 788
 789         if (phba->sli_rev <= LPFC_SLI_REV3) {
 790                 /* Disable interrupts */
 791                 writel(0, phba->HCregaddr);
 792                 readl(phba->HCregaddr); /* flush */
 793         }
 794
 795         if (phba->pport->load_flag & FC_UNLOADING)
 796                 lpfc_cleanup_discovery_resources(phba->pport);
 797         else {
 798                 vports = lpfc_create_vport_work_array(phba);
 799                 if (vports != NULL)
 800                         for (i = 0; i <= phba->max_vports &&
 801                                 vports[i] != NULL; i++)
 802                                 lpfc_cleanup_discovery_resources(vports[i]);
 803                 lpfc_destroy_vport_work_array(phba, vports);
 804         }
 805         return 0;
 806 }
 807
 808 /**
 809  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 810  * @phba: pointer to lpfc HBA data structure.
 811  *
 812  * This routine will do uninitialization after the HBA is reset when bring
 813  * down the SLI Layer.
 814  *
 815  * Return codes
 816  *   0 - success.
 817  *   Any other value - error.
 818  **/
 819 static int
 820 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 821 {
 822         struct lpfc_sli *psli = &phba->sli;
 823         struct lpfc_sli_ring *pring;
 824         struct lpfc_dmabuf *mp, *next_mp;
 825         LIST_HEAD(completions);
 826         int i;
 827
 828         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 829                 lpfc_sli_hbqbuf_free_all(phba);
 830         else {
 831                 /* Cleanup preposted buffers on the ELS ring */
 832                 pring = &psli->ring[LPFC_ELS_RING];
 833                 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 834                         list_del(&mp->list);
 835                         pring->postbufq_cnt--;
 836                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 837                         kfree(mp);
 838                 }
 839         }
 840
 841         spin_lock_irq(&phba->hbalock);
 842         for (i = 0; i < psli->num_rings; i++) {
 843                 pring = &psli->ring[i];
 844
 845                 /* At this point in time the HBA is either reset or DOA. Either
 846                  * way, nothing should be on txcmplq as it will NEVER complete.
 847                  */
 848                 list_splice_init(&pring->txcmplq, &completions);
 849                 spin_unlock_irq(&phba->hbalock);
 850
 851                 /* Cancel all the IOCBs from the completions list */
 852                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 853                                       IOERR_SLI_ABORTED);
 854
 855                 lpfc_sli_abort_iocb_ring(phba, pring);
 856                 spin_lock_irq(&phba->hbalock);
 857         }
 858         spin_unlock_irq(&phba->hbalock);
 859
 860         return 0;
 861 }
 862
 863 /**
 864  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 865  * @phba: pointer to lpfc HBA data structure.
 866  *
 867  * This routine will do uninitialization after the HBA is reset when bring
 868  * down the SLI Layer.
 869  *
 870  * Return codes
 871  *   0 - success.
 872  *   Any other value - error.
 873  **/
 874 static int
 875 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 876 {
 877         struct lpfc_scsi_buf *psb, *psb_next;
 878         LIST_HEAD(aborts);
 879         int ret;
 880         unsigned long iflag = 0;
 881         struct lpfc_sglq *sglq_entry = NULL;
 882
 883         ret = lpfc_hba_down_post_s3(phba);
 884         if (ret)
 885                 return ret;
 886         /* At this point in time the HBA is either reset or DOA. Either
 887          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
 888          * on the lpfc_sgl_list so that it can either be freed if the
 889          * driver is unloading or reposted if the driver is restarting
 890          * the port.
 891          */
 892         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
 893                                         /* scsl_buf_list */
 894         /* abts_sgl_list_lock required because worker thread uses this
 895          * list.
 896          */
 897         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
 898         list_for_each_entry(sglq_entry,
 899                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
 900                 sglq_entry->state = SGL_FREED;
 901
 902         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
 903                         &phba->sli4_hba.lpfc_sgl_list);
 904         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
 905         /* abts_scsi_buf_list_lock required because worker thread uses this
 906          * list.
 907          */
 908         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 909         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
 910                         &aborts);
 911         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 912         spin_unlock_irq(&phba->hbalock);
 913
 914         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
 915                 psb->pCmd = NULL;
 916                 psb->status = IOSTAT_SUCCESS;
 917         }
 918         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
 919         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
 920         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
 921         return 0;
 922 }
 923
 924 /**
 925  * lpfc_hba_down_post - Wrapper func for hba down post routine
 926  * @phba: pointer to lpfc HBA data structure.
 927  *
 928  * This routine wraps the actual SLI3 or SLI4 routine for performing
 929  * uninitialization after the HBA is reset when bring down the SLI Layer.
 930  *
 931  * Return codes
 932  *   0 - success.
 933  *   Any other value - error.
 934  **/
 935 int
 936 lpfc_hba_down_post(struct lpfc_hba *phba)
 937 {
 938         return (*phba->lpfc_hba_down_post)(phba);
 939 }
 940
 941 /**
 942  * lpfc_hb_timeout - The HBA-timer timeout handler
 943  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 944  *
 945  * This is the HBA-timer timeout handler registered to the lpfc driver. When
 946  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 947  * work-port-events bitmap and the worker thread is notified. This timeout
 948  * event will be used by the worker thread to invoke the actual timeout
 949  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 950  * be performed in the timeout handler and the HBA timeout event bit shall
 951  * be cleared by the worker thread after it has taken the event bitmap out.
 952  **/
 953 static void
 954 lpfc_hb_timeout(unsigned long ptr)
 955 {
 956         struct lpfc_hba *phba;
 957         uint32_t tmo_posted;
 958         unsigned long iflag;
 959
 960         phba = (struct lpfc_hba *)ptr;
 961
 962         /* Check for heart beat timeout conditions */
 963         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 964         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
 965         if (!tmo_posted)
 966                 phba->pport->work_port_events |= WORKER_HB_TMO;
 967         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 968
 969         /* Tell the worker thread there is work to do */
 970         if (!tmo_posted)
 971                 lpfc_worker_wake_up(phba);
 972         return;
 973 }
 974
 975 /**
 976  * lpfc_rrq_timeout - The RRQ-timer timeout handler
 977  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 978  *
 979  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
 980  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
 981  * work-port-events bitmap and the worker thread is notified. This timeout
 982  * event will be used by the worker thread to invoke the actual timeout
 983  * handler routine, lpfc_rrq_handler. Any periodical operations will
 984  * be performed in the timeout handler and the RRQ timeout event bit shall
 985  * be cleared by the worker thread after it has taken the event bitmap out.
 986  **/
 987 static void
 988 lpfc_rrq_timeout(unsigned long ptr)
 989 {
 990         struct lpfc_hba *phba;
 991         unsigned long iflag;
 992
 993         phba = (struct lpfc_hba *)ptr;
 994         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 995         phba->hba_flag |= HBA_RRQ_ACTIVE;
 996         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 997         lpfc_worker_wake_up(phba);
 998 }
 999
1000 /**
1001  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1002  * @phba: pointer to lpfc hba data structure.
1003  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1004  *
1005  * This is the callback function to the lpfc heart-beat mailbox command.
1006  * If configured, the lpfc driver issues the heart-beat mailbox command to
1007  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1008  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1009  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1010  * heart-beat outstanding state. Once the mailbox command comes back and
1011  * no error conditions detected, the heart-beat mailbox command timer is
1012  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1013  * state is cleared for the next heart-beat. If the timer expired with the
1014  * heart-beat outstanding state set, the driver will put the HBA offline.
1015  **/
1016 static void
1017 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1018 {
1019         unsigned long drvr_flag;
1020
1021         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1022         phba->hb_outstanding = 0;
1023         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1024
1025         /* Check and reset heart-beat timer is necessary */
1026         mempool_free(pmboxq, phba->mbox_mem_pool);
1027         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1028                 !(phba->link_state == LPFC_HBA_ERROR) &&
1029                 !(phba->pport->load_flag & FC_UNLOADING))
1030                 mod_timer(&phba->hb_tmofunc,
1031                           jiffies +
1032                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1033         return;
1034 }
1035
1036 /**
1037  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1038  * @phba: pointer to lpfc hba data structure.
1039  *
1040  * This is the actual HBA-timer timeout handler to be invoked by the worker
1041  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1042  * handler performs any periodic operations needed for the device. If such
1043  * periodic event has already been attended to either in the interrupt handler
1044  * or by processing slow-ring or fast-ring events within the HBA-timer
1045  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1046  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1047  * is configured and there is no heart-beat mailbox command outstanding, a
1048  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1049  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1050  * to offline.
1051  **/
1052 void
1053 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1054 {
1055         struct lpfc_vport **vports;
1056         LPFC_MBOXQ_t *pmboxq;
1057         struct lpfc_dmabuf *buf_ptr;
1058         int retval, i;
1059         struct lpfc_sli *psli = &phba->sli;
1060         LIST_HEAD(completions);
1061
1062         vports = lpfc_create_vport_work_array(phba);
1063         if (vports != NULL)
1064                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1065                         lpfc_rcv_seq_check_edtov(vports[i]);
1066         lpfc_destroy_vport_work_array(phba, vports);
1067
1068         if ((phba->link_state == LPFC_HBA_ERROR) ||
1069                 (phba->pport->load_flag & FC_UNLOADING) ||
1070                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1071                 return;
1072
1073         spin_lock_irq(&phba->pport->work_port_lock);
1074
1075         if (time_after(phba->last_completion_time +
1076                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1077                         jiffies)) {
1078                 spin_unlock_irq(&phba->pport->work_port_lock);
1079                 if (!phba->hb_outstanding)
1080                         mod_timer(&phba->hb_tmofunc,
1081                                 jiffies +
1082                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1083                 else
1084                         mod_timer(&phba->hb_tmofunc,
1085                                 jiffies +
1086                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1087                 return;
1088         }
1089         spin_unlock_irq(&phba->pport->work_port_lock);
1090
1091         if (phba->elsbuf_cnt &&
1092                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1093                 spin_lock_irq(&phba->hbalock);
1094                 list_splice_init(&phba->elsbuf, &completions);
1095                 phba->elsbuf_cnt = 0;
1096                 phba->elsbuf_prev_cnt = 0;
1097                 spin_unlock_irq(&phba->hbalock);
1098
1099                 while (!list_empty(&completions)) {
1100                         list_remove_head(&completions, buf_ptr,
1101                                 struct lpfc_dmabuf, list);
1102                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1103                         kfree(buf_ptr);
1104                 }
1105         }
1106         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1107
1108         /* If there is no heart beat outstanding, issue a heartbeat command */
1109         if (phba->cfg_enable_hba_heartbeat) {
1110                 if (!phba->hb_outstanding) {
1111                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1112                                 (list_empty(&psli->mboxq))) {
1113                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1114                                                         GFP_KERNEL);
1115                                 if (!pmboxq) {
1116                                         mod_timer(&phba->hb_tmofunc,
1117                                                  jiffies +
1118                                                  msecs_to_jiffies(1000 *
1119                                                  LPFC_HB_MBOX_INTERVAL));
1120                                         return;
1121                                 }
1122
1123                                 lpfc_heart_beat(phba, pmboxq);
1124                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1125                                 pmboxq->vport = phba->pport;
1126                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1127                                                 MBX_NOWAIT);
1128
1129                                 if (retval != MBX_BUSY &&
1130                                         retval != MBX_SUCCESS) {
1131                                         mempool_free(pmboxq,
1132                                                         phba->mbox_mem_pool);
1133                                         mod_timer(&phba->hb_tmofunc,
1134                                                 jiffies +
1135                                                 msecs_to_jiffies(1000 *
1136                                                 LPFC_HB_MBOX_INTERVAL));
1137                                         return;
1138                                 }
1139                                 phba->skipped_hb = 0;
1140                                 phba->hb_outstanding = 1;
1141                         } else if (time_before_eq(phba->last_completion_time,
1142                                         phba->skipped_hb)) {
1143                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1144                                         "2857 Last completion time not "
1145                                         " updated in %d ms\n",
1146                                         jiffies_to_msecs(jiffies
1147                                                  - phba->last_completion_time));
1148                         } else
1149                                 phba->skipped_hb = jiffies;
1150
1151                         mod_timer(&phba->hb_tmofunc,
1152                                  jiffies +
1153                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1154                         return;
1155                 } else {
1156                         /*
1157                         * If heart beat timeout called with hb_outstanding set
1158                         * we need to give the hb mailbox cmd a chance to
1159                         * complete or TMO.
1160                         */
1161                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1162                                         "0459 Adapter heartbeat still out"
1163                                         "standing:last compl time was %d ms.\n",
1164                                         jiffies_to_msecs(jiffies
1165                                                  - phba->last_completion_time));
1166                         mod_timer(&phba->hb_tmofunc,
1167                                 jiffies +
1168                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1169                 }
1170         }
1171 }
1172
1173 /**
1174  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1175  * @phba: pointer to lpfc hba data structure.
1176  *
1177  * This routine is called to bring the HBA offline when HBA hardware error
1178  * other than Port Error 6 has been detected.
1179  **/
1180 static void
1181 lpfc_offline_eratt(struct lpfc_hba *phba)
1182 {
1183         struct lpfc_sli   *psli = &phba->sli;
1184
1185         spin_lock_irq(&phba->hbalock);
1186         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1187         spin_unlock_irq(&phba->hbalock);
1188         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1189
1190         lpfc_offline(phba);
1191         lpfc_reset_barrier(phba);
1192         spin_lock_irq(&phba->hbalock);
1193         lpfc_sli_brdreset(phba);
1194         spin_unlock_irq(&phba->hbalock);
1195         lpfc_hba_down_post(phba);
1196         lpfc_sli_brdready(phba, HS_MBRDY);
1197         lpfc_unblock_mgmt_io(phba);
1198         phba->link_state = LPFC_HBA_ERROR;
1199         return;
1200 }
1201
1202 /**
1203  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1204  * @phba: pointer to lpfc hba data structure.
1205  *
1206  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1207  * other than Port Error 6 has been detected.
1208  **/
1209 void
1210 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1211 {
1212         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1213         lpfc_offline(phba);
1214         lpfc_sli4_brdreset(phba);
1215         lpfc_hba_down_post(phba);
1216         lpfc_sli4_post_status_check(phba);
1217         lpfc_unblock_mgmt_io(phba);
1218         phba->link_state = LPFC_HBA_ERROR;
1219 }
1220
1221 /**
1222  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1223  * @phba: pointer to lpfc hba data structure.
1224  *
1225  * This routine is invoked to handle the deferred HBA hardware error
1226  * conditions. This type of error is indicated by HBA by setting ER1
1227  * and another ER bit in the host status register. The driver will
1228  * wait until the ER1 bit clears before handling the error condition.
1229  **/
1230 static void
1231 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1232 {
1233         uint32_t old_host_status = phba->work_hs;
1234         struct lpfc_sli_ring  *pring;
1235         struct lpfc_sli *psli = &phba->sli;
1236
1237         /* If the pci channel is offline, ignore possible errors,
1238          * since we cannot communicate with the pci card anyway.
1239          */
1240         if (pci_channel_offline(phba->pcidev)) {
1241                 spin_lock_irq(&phba->hbalock);
1242                 phba->hba_flag &= ~DEFER_ERATT;
1243                 spin_unlock_irq(&phba->hbalock);
1244                 return;
1245         }
1246
1247         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1248                 "0479 Deferred Adapter Hardware Error "
1249                 "Data: x%x x%x x%x\n",
1250                 phba->work_hs,
1251                 phba->work_status[0], phba->work_status[1]);
1252
1253         spin_lock_irq(&phba->hbalock);
1254         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1255         spin_unlock_irq(&phba->hbalock);
1256
1257
1258         /*
1259          * Firmware stops when it triggred erratt. That could cause the I/Os
1260          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1261          * SCSI layer retry it after re-establishing link.
1262          */
1263         pring = &psli->ring[psli->fcp_ring];
1264         lpfc_sli_abort_iocb_ring(phba, pring);
1265
1266         /*
1267          * There was a firmware error. Take the hba offline and then
1268          * attempt to restart it.
1269          */
1270         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1271         lpfc_offline(phba);
1272
1273         /* Wait for the ER1 bit to clear.*/
1274         while (phba->work_hs & HS_FFER1) {
1275                 msleep(100);
1276                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1277                         phba->work_hs = UNPLUG_ERR ;
1278                         break;
1279                 }
1280                 /* If driver is unloading let the worker thread continue */
1281                 if (phba->pport->load_flag & FC_UNLOADING) {
1282                         phba->work_hs = 0;
1283                         break;
1284                 }
1285         }
1286
1287         /*
1288          * This is to ptrotect against a race condition in which
1289          * first write to the host attention register clear the
1290          * host status register.
1291          */
1292         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1293                 phba->work_hs = old_host_status & ~HS_FFER1;
1294
1295         spin_lock_irq(&phba->hbalock);
1296         phba->hba_flag &= ~DEFER_ERATT;
1297         spin_unlock_irq(&phba->hbalock);
1298         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1299         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1300 }
1301
1302 static void
1303 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1304 {
1305         struct lpfc_board_event_header board_event;
1306         struct Scsi_Host *shost;
1307
1308         board_event.event_type = FC_REG_BOARD_EVENT;
1309         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1310         shost = lpfc_shost_from_vport(phba->pport);
1311         fc_host_post_vendor_event(shost, fc_get_event_number(),
1312                                   sizeof(board_event),
1313                                   (char *) &board_event,
1314                                   LPFC_NL_VENDOR_ID);
1315 }
1316
1317 /**
1318  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1319  * @phba: pointer to lpfc hba data structure.
1320  *
1321  * This routine is invoked to handle the following HBA hardware error
1322  * conditions:
1323  * 1 - HBA error attention interrupt
1324  * 2 - DMA ring index out of range
1325  * 3 - Mailbox command came back as unknown
1326  **/
1327 static void
1328 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1329 {
1330         struct lpfc_vport *vport = phba->pport;
1331         struct lpfc_sli   *psli = &phba->sli;
1332         struct lpfc_sli_ring  *pring;
1333         uint32_t event_data;
1334         unsigned long temperature;
1335         struct temp_event temp_event_data;
1336         struct Scsi_Host  *shost;
1337
1338         /* If the pci channel is offline, ignore possible errors,
1339          * since we cannot communicate with the pci card anyway.
1340          */
1341         if (pci_channel_offline(phba->pcidev)) {
1342                 spin_lock_irq(&phba->hbalock);
1343                 phba->hba_flag &= ~DEFER_ERATT;
1344                 spin_unlock_irq(&phba->hbalock);
1345                 return;
1346         }
1347
1348         /* If resets are disabled then leave the HBA alone and return */
1349         if (!phba->cfg_enable_hba_reset)
1350                 return;
1351
1352         /* Send an internal error event to mgmt application */
1353         lpfc_board_errevt_to_mgmt(phba);
1354
1355         if (phba->hba_flag & DEFER_ERATT)
1356                 lpfc_handle_deferred_eratt(phba);
1357
1358         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1359                 if (phba->work_hs & HS_FFER6)
1360                         /* Re-establishing Link */
1361                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1362                                         "1301 Re-establishing Link "
1363                                         "Data: x%x x%x x%x\n",
1364                                         phba->work_hs, phba->work_status[0],
1365                                         phba->work_status[1]);
1366                 if (phba->work_hs & HS_FFER8)
1367                         /* Device Zeroization */
1368                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1369                                         "2861 Host Authentication device "
1370                                         "zeroization Data:x%x x%x x%x\n",
1371                                         phba->work_hs, phba->work_status[0],
1372                                         phba->work_status[1]);
1373
1374                 spin_lock_irq(&phba->hbalock);
1375                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1376                 spin_unlock_irq(&phba->hbalock);
1377
1378                 /*
1379                 * Firmware stops when it triggled erratt with HS_FFER6.
1380                 * That could cause the I/Os dropped by the firmware.
1381                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1382                 * retry it after re-establishing link.
1383                 */
1384                 pring = &psli->ring[psli->fcp_ring];
1385                 lpfc_sli_abort_iocb_ring(phba, pring);
1386
1387                 /*
1388                  * There was a firmware error.  Take the hba offline and then
1389                  * attempt to restart it.
1390                  */
1391                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1392                 lpfc_offline(phba);
1393                 lpfc_sli_brdrestart(phba);
1394                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1395                         lpfc_unblock_mgmt_io(phba);
1396                         return;
1397                 }
1398                 lpfc_unblock_mgmt_io(phba);
1399         } else if (phba->work_hs & HS_CRIT_TEMP) {
1400                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1401                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1402                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1403                 temp_event_data.data = (uint32_t)temperature;
1404
1405                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1406                                 "0406 Adapter maximum temperature exceeded "
1407                                 "(%ld), taking this port offline "
1408                                 "Data: x%x x%x x%x\n",
1409                                 temperature, phba->work_hs,
1410                                 phba->work_status[0], phba->work_status[1]);
1411
1412                 shost = lpfc_shost_from_vport(phba->pport);
1413                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1414                                           sizeof(temp_event_data),
1415                                           (char *) &temp_event_data,
1416                                           SCSI_NL_VID_TYPE_PCI
1417                                           | PCI_VENDOR_ID_EMULEX);
1418
1419                 spin_lock_irq(&phba->hbalock);
1420                 phba->over_temp_state = HBA_OVER_TEMP;
1421                 spin_unlock_irq(&phba->hbalock);
1422                 lpfc_offline_eratt(phba);
1423
1424         } else {
1425                 /* The if clause above forces this code path when the status
1426                  * failure is a value other than FFER6. Do not call the offline
1427                  * twice. This is the adapter hardware error path.
1428                  */
1429                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1430                                 "0457 Adapter Hardware Error "
1431                                 "Data: x%x x%x x%x\n",
1432                                 phba->work_hs,
1433                                 phba->work_status[0], phba->work_status[1]);
1434
1435                 event_data = FC_REG_DUMP_EVENT;
1436                 shost = lpfc_shost_from_vport(vport);
1437                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1438                                 sizeof(event_data), (char *) &event_data,
1439                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1440
1441                 lpfc_offline_eratt(phba);
1442         }
1443         return;
1444 }
1445
1446 /**
1447  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1448  * @phba: pointer to lpfc hba data structure.
1449  * @mbx_action: flag for mailbox shutdown action.
1450  *
1451  * This routine is invoked to perform an SLI4 port PCI function reset in
1452  * response to port status register polling attention. It waits for port
1453  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1454  * During this process, interrupt vectors are freed and later requested
1455  * for handling possible port resource change.
1456  **/
1457 static int
1458 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action)
1459 {
1460         int rc;
1461         uint32_t intr_mode;
1462
1463         /*
1464          * On error status condition, driver need to wait for port
1465          * ready before performing reset.
1466          */
1467         rc = lpfc_sli4_pdev_status_reg_wait(phba);
1468         if (!rc) {
1469                 /* need reset: attempt for port recovery */
1470                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1471                                 "2887 Reset Needed: Attempting Port "
1472                                 "Recovery...\n");
1473                 lpfc_offline_prep(phba, mbx_action);
1474                 lpfc_offline(phba);
1475                 /* release interrupt for possible resource change */
1476                 lpfc_sli4_disable_intr(phba);
1477                 lpfc_sli_brdrestart(phba);
1478                 /* request and enable interrupt */
1479                 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1480                 if (intr_mode == LPFC_INTR_ERROR) {
1481                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1482                                         "3175 Failed to enable interrupt\n");
1483                         return -EIO;
1484                 } else {
1485                         phba->intr_mode = intr_mode;
1486                 }
1487                 rc = lpfc_online(phba);
1488                 if (rc == 0)
1489                         lpfc_unblock_mgmt_io(phba);
1490         }
1491         return rc;
1492 }
1493
1494 /**
1495  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1496  * @phba: pointer to lpfc hba data structure.
1497  *
1498  * This routine is invoked to handle the SLI4 HBA hardware error attention
1499  * conditions.
1500  **/
1501 static void
1502 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1503 {
1504         struct lpfc_vport *vport = phba->pport;
1505         uint32_t event_data;
1506         struct Scsi_Host *shost;
1507         uint32_t if_type;
1508         struct lpfc_register portstat_reg = {0};
1509         uint32_t reg_err1, reg_err2;
1510         uint32_t uerrlo_reg, uemasklo_reg;
1511         uint32_t pci_rd_rc1, pci_rd_rc2;
1512         int rc;
1513
1514         /* If the pci channel is offline, ignore possible errors, since
1515          * we cannot communicate with the pci card anyway.
1516          */
1517         if (pci_channel_offline(phba->pcidev))
1518                 return;
1519         /* If resets are disabled then leave the HBA alone and return */
1520         if (!phba->cfg_enable_hba_reset)
1521                 return;
1522
1523         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1524         switch (if_type) {
1525         case LPFC_SLI_INTF_IF_TYPE_0:
1526                 pci_rd_rc1 = lpfc_readl(
1527                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1528                                 &uerrlo_reg);
1529                 pci_rd_rc2 = lpfc_readl(
1530                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1531                                 &uemasklo_reg);
1532                 /* consider PCI bus read error as pci_channel_offline */
1533                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1534                         return;
1535                 lpfc_sli4_offline_eratt(phba);
1536                 break;
1537         case LPFC_SLI_INTF_IF_TYPE_2:
1538                 pci_rd_rc1 = lpfc_readl(
1539                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1540                                 &portstat_reg.word0);
1541                 /* consider PCI bus read error as pci_channel_offline */
1542                 if (pci_rd_rc1 == -EIO) {
1543                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1544                                 "3151 PCI bus read access failure: x%x\n",
1545                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1546                         return;
1547                 }
1548                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1549                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1550                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1551                         /* TODO: Register for Overtemp async events. */
1552                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1553                                 "2889 Port Overtemperature event, "
1554                                 "taking port offline\n");
1555                         spin_lock_irq(&phba->hbalock);
1556                         phba->over_temp_state = HBA_OVER_TEMP;
1557                         spin_unlock_irq(&phba->hbalock);
1558                         lpfc_sli4_offline_eratt(phba);
1559                         break;
1560                 }
1561                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1562                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART)
1563                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1564                                         "3143 Port Down: Firmware Restarted\n");
1565                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1566                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1567                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1568                                         "3144 Port Down: Debug Dump\n");
1569                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1570                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1571                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1572                                         "3145 Port Down: Provisioning\n");
1573
1574                 /* Check port status register for function reset */
1575                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT);
1576                 if (rc == 0) {
1577                         /* don't report event on forced debug dump */
1578                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1579                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1580                                 return;
1581                         else
1582                                 break;
1583                 }
1584                 /* fall through for not able to recover */
1585                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1586                                 "3152 Unrecoverable error, bring the port "
1587                                 "offline\n");
1588                 lpfc_sli4_offline_eratt(phba);
1589                 break;
1590         case LPFC_SLI_INTF_IF_TYPE_1:
1591         default:
1592                 break;
1593         }
1594         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1595                         "3123 Report dump event to upper layer\n");
1596         /* Send an internal error event to mgmt application */
1597         lpfc_board_errevt_to_mgmt(phba);
1598
1599         event_data = FC_REG_DUMP_EVENT;
1600         shost = lpfc_shost_from_vport(vport);
1601         fc_host_post_vendor_event(shost, fc_get_event_number(),
1602                                   sizeof(event_data), (char *) &event_data,
1603                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1604 }
1605
1606 /**
1607  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1608  * @phba: pointer to lpfc HBA data structure.
1609  *
1610  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1611  * routine from the API jump table function pointer from the lpfc_hba struct.
1612  *
1613  * Return codes
1614  *   0 - success.
1615  *   Any other value - error.
1616  **/
1617 void
1618 lpfc_handle_eratt(struct lpfc_hba *phba)
1619 {
1620         (*phba->lpfc_handle_eratt)(phba);
1621 }
1622
1623 /**
1624  * lpfc_handle_latt - The HBA link event handler
1625  * @phba: pointer to lpfc hba data structure.
1626  *
1627  * This routine is invoked from the worker thread to handle a HBA host
1628  * attention link event.
1629  **/
1630 void
1631 lpfc_handle_latt(struct lpfc_hba *phba)
1632 {
1633         struct lpfc_vport *vport = phba->pport;
1634         struct lpfc_sli   *psli = &phba->sli;
1635         LPFC_MBOXQ_t *pmb;
1636         volatile uint32_t control;
1637         struct lpfc_dmabuf *mp;
1638         int rc = 0;
1639
1640         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1641         if (!pmb) {
1642                 rc = 1;
1643                 goto lpfc_handle_latt_err_exit;
1644         }
1645
1646         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1647         if (!mp) {
1648                 rc = 2;
1649                 goto lpfc_handle_latt_free_pmb;
1650         }
1651
1652         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1653         if (!mp->virt) {
1654                 rc = 3;
1655                 goto lpfc_handle_latt_free_mp;
1656         }
1657
1658         /* Cleanup any outstanding ELS commands */
1659         lpfc_els_flush_all_cmd(phba);
1660
1661         psli->slistat.link_event++;
1662         lpfc_read_topology(phba, pmb, mp);
1663         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1664         pmb->vport = vport;
1665         /* Block ELS IOCBs until we have processed this mbox command */
1666         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1667         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1668         if (rc == MBX_NOT_FINISHED) {
1669                 rc = 4;
1670                 goto lpfc_handle_latt_free_mbuf;
1671         }
1672
1673         /* Clear Link Attention in HA REG */
1674         spin_lock_irq(&phba->hbalock);
1675         writel(HA_LATT, phba->HAregaddr);
1676         readl(phba->HAregaddr); /* flush */
1677         spin_unlock_irq(&phba->hbalock);
1678
1679         return;
1680
1681 lpfc_handle_latt_free_mbuf:
1682         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1683         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1684 lpfc_handle_latt_free_mp:
1685         kfree(mp);
1686 lpfc_handle_latt_free_pmb:
1687         mempool_free(pmb, phba->mbox_mem_pool);
1688 lpfc_handle_latt_err_exit:
1689         /* Enable Link attention interrupts */
1690         spin_lock_irq(&phba->hbalock);
1691         psli->sli_flag |= LPFC_PROCESS_LA;
1692         control = readl(phba->HCregaddr);
1693         control |= HC_LAINT_ENA;
1694         writel(control, phba->HCregaddr);
1695         readl(phba->HCregaddr); /* flush */
1696
1697         /* Clear Link Attention in HA REG */
1698         writel(HA_LATT, phba->HAregaddr);
1699         readl(phba->HAregaddr); /* flush */
1700         spin_unlock_irq(&phba->hbalock);
1701         lpfc_linkdown(phba);
1702         phba->link_state = LPFC_HBA_ERROR;
1703
1704         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1705                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1706
1707         return;
1708 }
1709
1710 /**
1711  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1712  * @phba: pointer to lpfc hba data structure.
1713  * @vpd: pointer to the vital product data.
1714  * @len: length of the vital product data in bytes.
1715  *
1716  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1717  * an array of characters. In this routine, the ModelName, ProgramType, and
1718  * ModelDesc, etc. fields of the phba data structure will be populated.
1719  *
1720  * Return codes
1721  *   0 - pointer to the VPD passed in is NULL
1722  *   1 - success
1723  **/
1724 int
1725 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1726 {
1727         uint8_t lenlo, lenhi;
1728         int Length;
1729         int i, j;
1730         int finished = 0;
1731         int index = 0;
1732
1733         if (!vpd)
1734                 return 0;
1735
1736         /* Vital Product */
1737         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1738                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1739                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1740                         (uint32_t) vpd[3]);
1741         while (!finished && (index < (len - 4))) {
1742                 switch (vpd[index]) {
1743                 case 0x82:
1744                 case 0x91:
1745                         index += 1;
1746                         lenlo = vpd[index];
1747                         index += 1;
1748                         lenhi = vpd[index];
1749                         index += 1;
1750                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1751                         index += i;
1752                         break;
1753                 case 0x90:
1754                         index += 1;
1755                         lenlo = vpd[index];
1756                         index += 1;
1757                         lenhi = vpd[index];
1758                         index += 1;
1759                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1760                         if (Length > len - index)
1761                                 Length = len - index;
1762                         while (Length > 0) {
1763                         /* Look for Serial Number */
1764                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1765                                 index += 2;
1766                                 i = vpd[index];
1767                                 index += 1;
1768                                 j = 0;
1769                                 Length -= (3+i);
1770                                 while(i--) {
1771                                         phba->SerialNumber[j++] = vpd[index++];
1772                                         if (j == 31)
1773                                                 break;
1774                                 }
1775                                 phba->SerialNumber[j] = 0;
1776                                 continue;
1777                         }
1778                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1779                                 phba->vpd_flag |= VPD_MODEL_DESC;
1780                                 index += 2;
1781                                 i = vpd[index];
1782                                 index += 1;
1783                                 j = 0;
1784                                 Length -= (3+i);
1785                                 while(i--) {
1786                                         phba->ModelDesc[j++] = vpd[index++];
1787                                         if (j == 255)
1788                                                 break;
1789                                 }
1790                                 phba->ModelDesc[j] = 0;
1791                                 continue;
1792                         }
1793                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1794                                 phba->vpd_flag |= VPD_MODEL_NAME;
1795                                 index += 2;
1796                                 i = vpd[index];
1797                                 index += 1;
1798                                 j = 0;
1799                                 Length -= (3+i);
1800                                 while(i--) {
1801                                         phba->ModelName[j++] = vpd[index++];
1802                                         if (j == 79)
1803                                                 break;
1804                                 }
1805                                 phba->ModelName[j] = 0;
1806                                 continue;
1807                         }
1808                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1809                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1810                                 index += 2;
1811                                 i = vpd[index];
1812                                 index += 1;
1813                                 j = 0;
1814                                 Length -= (3+i);
1815                                 while(i--) {
1816                                         phba->ProgramType[j++] = vpd[index++];
1817                                         if (j == 255)
1818                                                 break;
1819                                 }
1820                                 phba->ProgramType[j] = 0;
1821                                 continue;
1822                         }
1823                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1824                                 phba->vpd_flag |= VPD_PORT;
1825                                 index += 2;
1826                                 i = vpd[index];
1827                                 index += 1;
1828                                 j = 0;
1829                                 Length -= (3+i);
1830                                 while(i--) {
1831                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
1832                                             (phba->sli4_hba.pport_name_sta ==
1833                                              LPFC_SLI4_PPNAME_GET)) {
1834                                                 j++;
1835                                                 index++;
1836                                         } else
1837                                                 phba->Port[j++] = vpd[index++];
1838                                         if (j == 19)
1839                                                 break;
1840                                 }
1841                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1842                                     (phba->sli4_hba.pport_name_sta ==
1843                                      LPFC_SLI4_PPNAME_NON))
1844                                         phba->Port[j] = 0;
1845                                 continue;
1846                         }
1847                         else {
1848                                 index += 2;
1849                                 i = vpd[index];
1850                                 index += 1;
1851                                 index += i;
1852                                 Length -= (3 + i);
1853                         }
1854                 }
1855                 finished = 0;
1856                 break;
1857                 case 0x78:
1858                         finished = 1;
1859                         break;
1860                 default:
1861                         index ++;
1862                         break;
1863                 }
1864         }
1865
1866         return(1);
1867 }
1868
1869 /**
1870  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1871  * @phba: pointer to lpfc hba data structure.
1872  * @mdp: pointer to the data structure to hold the derived model name.
1873  * @descp: pointer to the data structure to hold the derived description.
1874  *
1875  * This routine retrieves HBA's description based on its registered PCI device
1876  * ID. The @descp passed into this function points to an array of 256 chars. It
1877  * shall be returned with the model name, maximum speed, and the host bus type.
1878  * The @mdp passed into this function points to an array of 80 chars. When the
1879  * function returns, the @mdp will be filled with the model name.
1880  **/
1881 static void
1882 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1883 {
1884         lpfc_vpd_t *vp;
1885         uint16_t dev_id = phba->pcidev->device;
1886         int max_speed;
1887         int GE = 0;
1888         int oneConnect = 0; /* default is not a oneConnect */
1889         struct {
1890                 char *name;
1891                 char *bus;
1892                 char *function;
1893         } m = {"<Unknown>", "", ""};
1894
1895         if (mdp && mdp[0] != '\0'
1896                 && descp && descp[0] != '\0')
1897                 return;
1898
1899         if (phba->lmt & LMT_16Gb)
1900                 max_speed = 16;
1901         else if (phba->lmt & LMT_10Gb)
1902                 max_speed = 10;
1903         else if (phba->lmt & LMT_8Gb)
1904                 max_speed = 8;
1905         else if (phba->lmt & LMT_4Gb)
1906                 max_speed = 4;
1907         else if (phba->lmt & LMT_2Gb)
1908                 max_speed = 2;
1909         else if (phba->lmt & LMT_1Gb)
1910                 max_speed = 1;
1911         else
1912                 max_speed = 0;
1913
1914         vp = &phba->vpd;
1915
1916         switch (dev_id) {
1917         case PCI_DEVICE_ID_FIREFLY:
1918                 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1919                 break;
1920         case PCI_DEVICE_ID_SUPERFLY:
1921                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1922                         m = (typeof(m)){"LP7000", "PCI",
1923                                         "Fibre Channel Adapter"};
1924                 else
1925                         m = (typeof(m)){"LP7000E", "PCI",
1926                                         "Fibre Channel Adapter"};
1927                 break;
1928         case PCI_DEVICE_ID_DRAGONFLY:
1929                 m = (typeof(m)){"LP8000", "PCI",
1930                                 "Fibre Channel Adapter"};
1931                 break;
1932         case PCI_DEVICE_ID_CENTAUR:
1933                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1934                         m = (typeof(m)){"LP9002", "PCI",
1935                                         "Fibre Channel Adapter"};
1936                 else
1937                         m = (typeof(m)){"LP9000", "PCI",
1938                                         "Fibre Channel Adapter"};
1939                 break;
1940         case PCI_DEVICE_ID_RFLY:
1941                 m = (typeof(m)){"LP952", "PCI",
1942                                 "Fibre Channel Adapter"};
1943                 break;
1944         case PCI_DEVICE_ID_PEGASUS:
1945                 m = (typeof(m)){"LP9802", "PCI-X",
1946                                 "Fibre Channel Adapter"};
1947                 break;
1948         case PCI_DEVICE_ID_THOR:
1949                 m = (typeof(m)){"LP10000", "PCI-X",
1950                                 "Fibre Channel Adapter"};
1951                 break;
1952         case PCI_DEVICE_ID_VIPER:
1953                 m = (typeof(m)){"LPX1000",  "PCI-X",
1954                                 "Fibre Channel Adapter"};
1955                 break;
1956         case PCI_DEVICE_ID_PFLY:
1957                 m = (typeof(m)){"LP982", "PCI-X",
1958                                 "Fibre Channel Adapter"};
1959                 break;
1960         case PCI_DEVICE_ID_TFLY:
1961                 m = (typeof(m)){"LP1050", "PCI-X",
1962                                 "Fibre Channel Adapter"};
1963                 break;
1964         case PCI_DEVICE_ID_HELIOS:
1965                 m = (typeof(m)){"LP11000", "PCI-X2",
1966                                 "Fibre Channel Adapter"};
1967                 break;
1968         case PCI_DEVICE_ID_HELIOS_SCSP:
1969                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1970                                 "Fibre Channel Adapter"};
1971                 break;
1972         case PCI_DEVICE_ID_HELIOS_DCSP:
1973                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
1974                                 "Fibre Channel Adapter"};
1975                 break;
1976         case PCI_DEVICE_ID_NEPTUNE:
1977                 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1978                 break;
1979         case PCI_DEVICE_ID_NEPTUNE_SCSP:
1980                 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1981                 break;
1982         case PCI_DEVICE_ID_NEPTUNE_DCSP:
1983                 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1984                 break;
1985         case PCI_DEVICE_ID_BMID:
1986                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1987                 break;
1988         case PCI_DEVICE_ID_BSMB:
1989                 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1990                 break;
1991         case PCI_DEVICE_ID_ZEPHYR:
1992                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1993                 break;
1994         case PCI_DEVICE_ID_ZEPHYR_SCSP:
1995                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1996                 break;
1997         case PCI_DEVICE_ID_ZEPHYR_DCSP:
1998                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1999                 GE = 1;
2000                 break;
2001         case PCI_DEVICE_ID_ZMID:
2002                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2003                 break;
2004         case PCI_DEVICE_ID_ZSMB:
2005                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2006                 break;
2007         case PCI_DEVICE_ID_LP101:
2008                 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
2009                 break;
2010         case PCI_DEVICE_ID_LP10000S:
2011                 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
2012                 break;
2013         case PCI_DEVICE_ID_LP11000S:
2014                 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
2015                 break;
2016         case PCI_DEVICE_ID_LPE11000S:
2017                 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
2018                 break;
2019         case PCI_DEVICE_ID_SAT:
2020                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2021                 break;
2022         case PCI_DEVICE_ID_SAT_MID:
2023                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2024                 break;
2025         case PCI_DEVICE_ID_SAT_SMB:
2026                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2027                 break;
2028         case PCI_DEVICE_ID_SAT_DCSP:
2029                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2030                 break;
2031         case PCI_DEVICE_ID_SAT_SCSP:
2032                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2033                 break;
2034         case PCI_DEVICE_ID_SAT_S:
2035                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2036                 break;
2037         case PCI_DEVICE_ID_HORNET:
2038                 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
2039                 GE = 1;
2040                 break;
2041         case PCI_DEVICE_ID_PROTEUS_VF:
2042                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2043                                 "Fibre Channel Adapter"};
2044                 break;
2045         case PCI_DEVICE_ID_PROTEUS_PF:
2046                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2047                                 "Fibre Channel Adapter"};
2048                 break;
2049         case PCI_DEVICE_ID_PROTEUS_S:
2050                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2051                                 "Fibre Channel Adapter"};
2052                 break;
2053         case PCI_DEVICE_ID_TIGERSHARK:
2054                 oneConnect = 1;
2055                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2056                 break;
2057         case PCI_DEVICE_ID_TOMCAT:
2058                 oneConnect = 1;
2059                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2060                 break;
2061         case PCI_DEVICE_ID_FALCON:
2062                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2063                                 "EmulexSecure Fibre"};
2064                 break;
2065         case PCI_DEVICE_ID_BALIUS:
2066                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2067                                 "Fibre Channel Adapter"};
2068                 break;
2069         case PCI_DEVICE_ID_LANCER_FC:
2070         case PCI_DEVICE_ID_LANCER_FC_VF:
2071                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2072                 break;
2073         case PCI_DEVICE_ID_LANCER_FCOE:
2074         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2075                 oneConnect = 1;
2076                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2077                 break;
2078         case PCI_DEVICE_ID_SKYHAWK:
2079         case PCI_DEVICE_ID_SKYHAWK_VF:
2080                 oneConnect = 1;
2081                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2082                 break;
2083         default:
2084                 m = (typeof(m)){"Unknown", "", ""};
2085                 break;
2086         }
2087
2088         if (mdp && mdp[0] == '\0')
2089                 snprintf(mdp, 79,"%s", m.name);
2090         /*
2091          * oneConnect hba requires special processing, they are all initiators
2092          * and we put the port number on the end
2093          */
2094         if (descp && descp[0] == '\0') {
2095                 if (oneConnect)
2096                         snprintf(descp, 255,
2097                                 "Emulex OneConnect %s, %s Initiator %s",
2098                                 m.name, m.function,
2099                                 phba->Port);
2100                 else if (max_speed == 0)
2101                         snprintf(descp, 255,
2102                                 "Emulex %s %s %s ",
2103                                 m.name, m.bus, m.function);
2104                 else
2105                         snprintf(descp, 255,
2106                                 "Emulex %s %d%s %s %s",
2107                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2108                                 m.bus, m.function);
2109         }
2110 }
2111
2112 /**
2113  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2114  * @phba: pointer to lpfc hba data structure.
2115  * @pring: pointer to a IOCB ring.
2116  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2117  *
2118  * This routine posts a given number of IOCBs with the associated DMA buffer
2119  * descriptors specified by the cnt argument to the given IOCB ring.
2120  *
2121  * Return codes
2122  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2123  **/
2124 int
2125 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2126 {
2127         IOCB_t *icmd;
2128         struct lpfc_iocbq *iocb;
2129         struct lpfc_dmabuf *mp1, *mp2;
2130
2131         cnt += pring->missbufcnt;
2132
2133         /* While there are buffers to post */
2134         while (cnt > 0) {
2135                 /* Allocate buffer for  command iocb */
2136                 iocb = lpfc_sli_get_iocbq(phba);
2137                 if (iocb == NULL) {
2138                         pring->missbufcnt = cnt;
2139                         return cnt;
2140                 }
2141                 icmd = &iocb->iocb;
2142
2143                 /* 2 buffers can be posted per command */
2144                 /* Allocate buffer to post */
2145                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2146                 if (mp1)
2147                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2148                 if (!mp1 || !mp1->virt) {
2149                         kfree(mp1);
2150                         lpfc_sli_release_iocbq(phba, iocb);
2151                         pring->missbufcnt = cnt;
2152                         return cnt;
2153                 }
2154
2155                 INIT_LIST_HEAD(&mp1->list);
2156                 /* Allocate buffer to post */
2157                 if (cnt > 1) {
2158                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2159                         if (mp2)
2160                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2161                                                             &mp2->phys);
2162                         if (!mp2 || !mp2->virt) {
2163                                 kfree(mp2);
2164                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2165                                 kfree(mp1);
2166                                 lpfc_sli_release_iocbq(phba, iocb);
2167                                 pring->missbufcnt = cnt;
2168                                 return cnt;
2169                         }
2170
2171                         INIT_LIST_HEAD(&mp2->list);
2172                 } else {
2173                         mp2 = NULL;
2174                 }
2175
2176                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2177                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2178                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2179                 icmd->ulpBdeCount = 1;
2180                 cnt--;
2181                 if (mp2) {
2182                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2183                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2184                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2185                         cnt--;
2186                         icmd->ulpBdeCount = 2;
2187                 }
2188
2189                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2190                 icmd->ulpLe = 1;
2191
2192                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2193                     IOCB_ERROR) {
2194                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2195                         kfree(mp1);
2196                         cnt++;
2197                         if (mp2) {
2198                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2199                                 kfree(mp2);
2200                                 cnt++;
2201                         }
2202                         lpfc_sli_release_iocbq(phba, iocb);
2203                         pring->missbufcnt = cnt;
2204                         return cnt;
2205                 }
2206                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2207                 if (mp2)
2208                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2209         }
2210         pring->missbufcnt = 0;
2211         return 0;
2212 }
2213
2214 /**
2215  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2216  * @phba: pointer to lpfc hba data structure.
2217  *
2218  * This routine posts initial receive IOCB buffers to the ELS ring. The
2219  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2220  * set to 64 IOCBs.
2221  *
2222  * Return codes
2223  *   0 - success (currently always success)
2224  **/
2225 static int
2226 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2227 {
2228         struct lpfc_sli *psli = &phba->sli;
2229
2230         /* Ring 0, ELS / CT buffers */
2231         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2232         /* Ring 2 - FCP no buffers needed */
2233
2234         return 0;
2235 }
2236
2237 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2238
2239 /**
2240  * lpfc_sha_init - Set up initial array of hash table entries
2241  * @HashResultPointer: pointer to an array as hash table.
2242  *
2243  * This routine sets up the initial values to the array of hash table entries
2244  * for the LC HBAs.
2245  **/
2246 static void
2247 lpfc_sha_init(uint32_t * HashResultPointer)
2248 {
2249         HashResultPointer[0] = 0x67452301;
2250         HashResultPointer[1] = 0xEFCDAB89;
2251         HashResultPointer[2] = 0x98BADCFE;
2252         HashResultPointer[3] = 0x10325476;
2253         HashResultPointer[4] = 0xC3D2E1F0;
2254 }
2255
2256 /**
2257  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2258  * @HashResultPointer: pointer to an initial/result hash table.
2259  * @HashWorkingPointer: pointer to an working hash table.
2260  *
2261  * This routine iterates an initial hash table pointed by @HashResultPointer
2262  * with the values from the working hash table pointeed by @HashWorkingPointer.
2263  * The results are putting back to the initial hash table, returned through
2264  * the @HashResultPointer as the result hash table.
2265  **/
2266 static void
2267 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2268 {
2269         int t;
2270         uint32_t TEMP;
2271         uint32_t A, B, C, D, E;
2272         t = 16;
2273         do {
2274                 HashWorkingPointer[t] =
2275                     S(1,
2276                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2277                                                                      8] ^
2278                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2279         } while (++t <= 79);
2280         t = 0;
2281         A = HashResultPointer[0];
2282         B = HashResultPointer[1];
2283         C = HashResultPointer[2];
2284         D = HashResultPointer[3];
2285         E = HashResultPointer[4];
2286
2287         do {
2288                 if (t < 20) {
2289                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2290                 } else if (t < 40) {
2291                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2292                 } else if (t < 60) {
2293                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2294                 } else {
2295                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2296                 }
2297                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2298                 E = D;
2299                 D = C;
2300                 C = S(30, B);
2301                 B = A;
2302                 A = TEMP;
2303         } while (++t <= 79);
2304
2305         HashResultPointer[0] += A;
2306         HashResultPointer[1] += B;
2307         HashResultPointer[2] += C;
2308         HashResultPointer[3] += D;
2309         HashResultPointer[4] += E;
2310
2311 }
2312
2313 /**
2314  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2315  * @RandomChallenge: pointer to the entry of host challenge random number array.
2316  * @HashWorking: pointer to the entry of the working hash array.
2317  *
2318  * This routine calculates the working hash array referred by @HashWorking
2319  * from the challenge random numbers associated with the host, referred by
2320  * @RandomChallenge. The result is put into the entry of the working hash
2321  * array and returned by reference through @HashWorking.
2322  **/
2323 static void
2324 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2325 {
2326         *HashWorking = (*RandomChallenge ^ *HashWorking);
2327 }
2328
2329 /**
2330  * lpfc_hba_init - Perform special handling for LC HBA initialization
2331  * @phba: pointer to lpfc hba data structure.
2332  * @hbainit: pointer to an array of unsigned 32-bit integers.
2333  *
2334  * This routine performs the special handling for LC HBA initialization.
2335  **/
2336 void
2337 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2338 {
2339         int t;
2340         uint32_t *HashWorking;
2341         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2342
2343         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2344         if (!HashWorking)
2345                 return;
2346
2347         HashWorking[0] = HashWorking[78] = *pwwnn++;
2348         HashWorking[1] = HashWorking[79] = *pwwnn;
2349
2350         for (t = 0; t < 7; t++)
2351                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2352
2353         lpfc_sha_init(hbainit);
2354         lpfc_sha_iterate(hbainit, HashWorking);
2355         kfree(HashWorking);
2356 }
2357
2358 /**
2359  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2360  * @vport: pointer to a virtual N_Port data structure.
2361  *
2362  * This routine performs the necessary cleanups before deleting the @vport.
2363  * It invokes the discovery state machine to perform necessary state
2364  * transitions and to release the ndlps associated with the @vport. Note,
2365  * the physical port is treated as @vport 0.
2366  **/
2367 void
2368 lpfc_cleanup(struct lpfc_vport *vport)
2369 {
2370         struct lpfc_hba   *phba = vport->phba;
2371         struct lpfc_nodelist *ndlp, *next_ndlp;
2372         int i = 0;
2373
2374         if (phba->link_state > LPFC_LINK_DOWN)
2375                 lpfc_port_link_failure(vport);
2376
2377         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2378                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2379                         ndlp = lpfc_enable_node(vport, ndlp,
2380                                                 NLP_STE_UNUSED_NODE);
2381                         if (!ndlp)
2382                                 continue;
2383                         spin_lock_irq(&phba->ndlp_lock);
2384                         NLP_SET_FREE_REQ(ndlp);
2385                         spin_unlock_irq(&phba->ndlp_lock);
2386                         /* Trigger the release of the ndlp memory */
2387                         lpfc_nlp_put(ndlp);
2388                         continue;
2389                 }
2390                 spin_lock_irq(&phba->ndlp_lock);
2391                 if (NLP_CHK_FREE_REQ(ndlp)) {
2392                         /* The ndlp should not be in memory free mode already */
2393                         spin_unlock_irq(&phba->ndlp_lock);
2394                         continue;
2395                 } else
2396                         /* Indicate request for freeing ndlp memory */
2397                         NLP_SET_FREE_REQ(ndlp);
2398                 spin_unlock_irq(&phba->ndlp_lock);
2399
2400                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2401                     ndlp->nlp_DID == Fabric_DID) {
2402                         /* Just free up ndlp with Fabric_DID for vports */
2403                         lpfc_nlp_put(ndlp);
2404                         continue;
2405                 }
2406
2407                 /* take care of nodes in unused state before the state
2408                  * machine taking action.
2409                  */
2410                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2411                         lpfc_nlp_put(ndlp);
2412                         continue;
2413                 }
2414
2415                 if (ndlp->nlp_type & NLP_FABRIC)
2416                         lpfc_disc_state_machine(vport, ndlp, NULL,
2417                                         NLP_EVT_DEVICE_RECOVERY);
2418
2419                 lpfc_disc_state_machine(vport, ndlp, NULL,
2420                                              NLP_EVT_DEVICE_RM);
2421         }
2422
2423         /* At this point, ALL ndlp's should be gone
2424          * because of the previous NLP_EVT_DEVICE_RM.
2425          * Lets wait for this to happen, if needed.
2426          */
2427         while (!list_empty(&vport->fc_nodes)) {
2428                 if (i++ > 3000) {
2429                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2430                                 "0233 Nodelist not empty\n");
2431                         list_for_each_entry_safe(ndlp, next_ndlp,
2432                                                 &vport->fc_nodes, nlp_listp) {
2433                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2434                                                 LOG_NODE,
2435                                                 "0282 did:x%x ndlp:x%p "
2436                                                 "usgmap:x%x refcnt:%d\n",
2437                                                 ndlp->nlp_DID, (void *)ndlp,
2438                                                 ndlp->nlp_usg_map,
2439                                                 atomic_read(
2440                                                         &ndlp->kref.refcount));
2441                         }
2442                         break;
2443                 }
2444
2445                 /* Wait for any activity on ndlps to settle */
2446                 msleep(10);
2447         }
2448         lpfc_cleanup_vports_rrqs(vport, NULL);
2449 }
2450
2451 /**
2452  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2453  * @vport: pointer to a virtual N_Port data structure.
2454  *
2455  * This routine stops all the timers associated with a @vport. This function
2456  * is invoked before disabling or deleting a @vport. Note that the physical
2457  * port is treated as @vport 0.
2458  **/
2459 void
2460 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2461 {
2462         del_timer_sync(&vport->els_tmofunc);
2463         del_timer_sync(&vport->fc_fdmitmo);
2464         del_timer_sync(&vport->delayed_disc_tmo);
2465         lpfc_can_disctmo(vport);
2466         return;
2467 }
2468
2469 /**
2470  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2471  * @phba: pointer to lpfc hba data structure.
2472  *
2473  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2474  * caller of this routine should already hold the host lock.
2475  **/
2476 void
2477 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2478 {
2479         /* Clear pending FCF rediscovery wait flag */
2480         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2481
2482         /* Now, try to stop the timer */
2483         del_timer(&phba->fcf.redisc_wait);
2484 }
2485
2486 /**
2487  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2488  * @phba: pointer to lpfc hba data structure.
2489  *
2490  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2491  * checks whether the FCF rediscovery wait timer is pending with the host
2492  * lock held before proceeding with disabling the timer and clearing the
2493  * wait timer pendig flag.
2494  **/
2495 void
2496 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2497 {
2498         spin_lock_irq(&phba->hbalock);
2499         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2500                 /* FCF rediscovery timer already fired or stopped */
2501                 spin_unlock_irq(&phba->hbalock);
2502                 return;
2503         }
2504         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2505         /* Clear failover in progress flags */
2506         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2507         spin_unlock_irq(&phba->hbalock);
2508 }
2509
2510 /**
2511  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2512  * @phba: pointer to lpfc hba data structure.
2513  *
2514  * This routine stops all the timers associated with a HBA. This function is
2515  * invoked before either putting a HBA offline or unloading the driver.
2516  **/
2517 void
2518 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2519 {
2520         lpfc_stop_vport_timers(phba->pport);
2521         del_timer_sync(&phba->sli.mbox_tmo);
2522         del_timer_sync(&phba->fabric_block_timer);
2523         del_timer_sync(&phba->eratt_poll);
2524         del_timer_sync(&phba->hb_tmofunc);
2525         if (phba->sli_rev == LPFC_SLI_REV4) {
2526                 del_timer_sync(&phba->rrq_tmr);
2527                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2528         }
2529         phba->hb_outstanding = 0;
2530
2531         switch (phba->pci_dev_grp) {
2532         case LPFC_PCI_DEV_LP:
2533                 /* Stop any LightPulse device specific driver timers */
2534                 del_timer_sync(&phba->fcp_poll_timer);
2535                 break;
2536         case LPFC_PCI_DEV_OC:
2537                 /* Stop any OneConnect device sepcific driver timers */
2538                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2539                 break;
2540         default:
2541                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2542                                 "0297 Invalid device group (x%x)\n",
2543                                 phba->pci_dev_grp);
2544                 break;
2545         }
2546         return;
2547 }
2548
2549 /**
2550  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2551  * @phba: pointer to lpfc hba data structure.
2552  *
2553  * This routine marks a HBA's management interface as blocked. Once the HBA's
2554  * management interface is marked as blocked, all the user space access to
2555  * the HBA, whether they are from sysfs interface or libdfc interface will
2556  * all be blocked. The HBA is set to block the management interface when the
2557  * driver prepares the HBA interface for online or offline.
2558  **/
2559 static void
2560 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2561 {
2562         unsigned long iflag;
2563         uint8_t actcmd = MBX_HEARTBEAT;
2564         unsigned long timeout;
2565
2566         spin_lock_irqsave(&phba->hbalock, iflag);
2567         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2568         spin_unlock_irqrestore(&phba->hbalock, iflag);
2569         if (mbx_action == LPFC_MBX_NO_WAIT)
2570                 return;
2571         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2572         spin_lock_irqsave(&phba->hbalock, iflag);
2573         if (phba->sli.mbox_active) {
2574                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2575                 /* Determine how long we might wait for the active mailbox
2576                  * command to be gracefully completed by firmware.
2577                  */
2578                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2579                                 phba->sli.mbox_active) * 1000) + jiffies;
2580         }
2581         spin_unlock_irqrestore(&phba->hbalock, iflag);
2582
2583         /* Wait for the outstnading mailbox command to complete */
2584         while (phba->sli.mbox_active) {
2585                 /* Check active mailbox complete status every 2ms */
2586                 msleep(2);
2587                 if (time_after(jiffies, timeout)) {
2588                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2589                                 "2813 Mgmt IO is Blocked %x "
2590                                 "- mbox cmd %x still active\n",
2591                                 phba->sli.sli_flag, actcmd);
2592                         break;
2593                 }
2594         }
2595 }
2596
2597 /**
2598  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2599  * @phba: pointer to lpfc hba data structure.
2600  *
2601  * Allocate RPIs for all active remote nodes. This is needed whenever
2602  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2603  * is to fixup the temporary rpi assignments.
2604  **/
2605 void
2606 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2607 {
2608         struct lpfc_nodelist  *ndlp, *next_ndlp;
2609         struct lpfc_vport **vports;
2610         int i;
2611
2612         if (phba->sli_rev != LPFC_SLI_REV4)
2613                 return;
2614
2615         vports = lpfc_create_vport_work_array(phba);
2616         if (vports != NULL) {
2617                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2618                         if (vports[i]->load_flag & FC_UNLOADING)
2619                                 continue;
2620
2621                         list_for_each_entry_safe(ndlp, next_ndlp,
2622                                                  &vports[i]->fc_nodes,
2623                                                  nlp_listp) {
2624                                 if (NLP_CHK_NODE_ACT(ndlp))
2625                                         ndlp->nlp_rpi =
2626                                                 lpfc_sli4_alloc_rpi(phba);
2627                         }
2628                 }
2629         }
2630         lpfc_destroy_vport_work_array(phba, vports);
2631 }
2632
2633 /**
2634  * lpfc_online - Initialize and bring a HBA online
2635  * @phba: pointer to lpfc hba data structure.
2636  *
2637  * This routine initializes the HBA and brings a HBA online. During this
2638  * process, the management interface is blocked to prevent user space access
2639  * to the HBA interfering with the driver initialization.
2640  *
2641  * Return codes
2642  *   0 - successful
2643  *   1 - failed
2644  **/
2645 int
2646 lpfc_online(struct lpfc_hba *phba)
2647 {
2648         struct lpfc_vport *vport;
2649         struct lpfc_vport **vports;
2650         int i;
2651         bool vpis_cleared = false;
2652
2653         if (!phba)
2654                 return 0;
2655         vport = phba->pport;
2656
2657         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2658                 return 0;
2659
2660         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2661                         "0458 Bring Adapter online\n");
2662
2663         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2664
2665         if (!lpfc_sli_queue_setup(phba)) {
2666                 lpfc_unblock_mgmt_io(phba);
2667                 return 1;
2668         }
2669
2670         if (phba->sli_rev == LPFC_SLI_REV4) {
2671                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2672                         lpfc_unblock_mgmt_io(phba);
2673                         return 1;
2674                 }
2675                 spin_lock_irq(&phba->hbalock);
2676                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2677                         vpis_cleared = true;
2678                 spin_unlock_irq(&phba->hbalock);
2679         } else {
2680                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2681                         lpfc_unblock_mgmt_io(phba);
2682                         return 1;
2683                 }
2684         }
2685
2686         vports = lpfc_create_vport_work_array(phba);
2687         if (vports != NULL)
2688                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2689                         struct Scsi_Host *shost;
2690                         shost = lpfc_shost_from_vport(vports[i]);
2691                         spin_lock_irq(shost->host_lock);
2692                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2693                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2694                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2695                         if (phba->sli_rev == LPFC_SLI_REV4) {
2696                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2697                                 if ((vpis_cleared) &&
2698                                     (vports[i]->port_type !=
2699                                         LPFC_PHYSICAL_PORT))
2700                                         vports[i]->vpi = 0;
2701                         }
2702                         spin_unlock_irq(shost->host_lock);
2703                 }
2704                 lpfc_destroy_vport_work_array(phba, vports);
2705
2706         lpfc_unblock_mgmt_io(phba);
2707         return 0;
2708 }
2709
2710 /**
2711  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2712  * @phba: pointer to lpfc hba data structure.
2713  *
2714  * This routine marks a HBA's management interface as not blocked. Once the
2715  * HBA's management interface is marked as not blocked, all the user space
2716  * access to the HBA, whether they are from sysfs interface or libdfc
2717  * interface will be allowed. The HBA is set to block the management interface
2718  * when the driver prepares the HBA interface for online or offline and then
2719  * set to unblock the management interface afterwards.
2720  **/
2721 void
2722 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2723 {
2724         unsigned long iflag;
2725
2726         spin_lock_irqsave(&phba->hbalock, iflag);
2727         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2728         spin_unlock_irqrestore(&phba->hbalock, iflag);
2729 }
2730
2731 /**
2732  * lpfc_offline_prep - Prepare a HBA to be brought offline
2733  * @phba: pointer to lpfc hba data structure.
2734  *
2735  * This routine is invoked to prepare a HBA to be brought offline. It performs
2736  * unregistration login to all the nodes on all vports and flushes the mailbox
2737  * queue to make it ready to be brought offline.
2738  **/
2739 void
2740 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2741 {
2742         struct lpfc_vport *vport = phba->pport;
2743         struct lpfc_nodelist  *ndlp, *next_ndlp;
2744         struct lpfc_vport **vports;
2745         struct Scsi_Host *shost;
2746         int i;
2747
2748         if (vport->fc_flag & FC_OFFLINE_MODE)
2749                 return;
2750
2751         lpfc_block_mgmt_io(phba, mbx_action);
2752
2753         lpfc_linkdown(phba);
2754
2755         /* Issue an unreg_login to all nodes on all vports */
2756         vports = lpfc_create_vport_work_array(phba);
2757         if (vports != NULL) {
2758                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2759                         if (vports[i]->load_flag & FC_UNLOADING)
2760                                 continue;
2761                         shost = lpfc_shost_from_vport(vports[i]);
2762                         spin_lock_irq(shost->host_lock);
2763                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2764                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2765                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2766                         spin_unlock_irq(shost->host_lock);
2767
2768                         shost = lpfc_shost_from_vport(vports[i]);
2769                         list_for_each_entry_safe(ndlp, next_ndlp,
2770                                                  &vports[i]->fc_nodes,
2771                                                  nlp_listp) {
2772                                 if (!NLP_CHK_NODE_ACT(ndlp))
2773                                         continue;
2774                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2775                                         continue;
2776                                 if (ndlp->nlp_type & NLP_FABRIC) {
2777                                         lpfc_disc_state_machine(vports[i], ndlp,
2778                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2779                                         lpfc_disc_state_machine(vports[i], ndlp,
2780                                                 NULL, NLP_EVT_DEVICE_RM);
2781                                 }
2782                                 spin_lock_irq(shost->host_lock);
2783                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2784                                 spin_unlock_irq(shost->host_lock);
2785                                 /*
2786                                  * Whenever an SLI4 port goes offline, free the
2787                                  * RPI. Get a new RPI when the adapter port
2788                                  * comes back online.
2789                                  */
2790                                 if (phba->sli_rev == LPFC_SLI_REV4)
2791                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2792                                 lpfc_unreg_rpi(vports[i], ndlp);
2793                         }
2794                 }
2795         }
2796         lpfc_destroy_vport_work_array(phba, vports);
2797
2798         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2799 }
2800
2801 /**
2802  * lpfc_offline - Bring a HBA offline
2803  * @phba: pointer to lpfc hba data structure.
2804  *
2805  * This routine actually brings a HBA offline. It stops all the timers
2806  * associated with the HBA, brings down the SLI layer, and eventually
2807  * marks the HBA as in offline state for the upper layer protocol.
2808  **/
2809 void
2810 lpfc_offline(struct lpfc_hba *phba)
2811 {
2812         struct Scsi_Host  *shost;
2813         struct lpfc_vport **vports;
2814         int i;
2815
2816         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2817                 return;
2818
2819         /* stop port and all timers associated with this hba */
2820         lpfc_stop_port(phba);
2821         vports = lpfc_create_vport_work_array(phba);
2822         if (vports != NULL)
2823                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2824                         lpfc_stop_vport_timers(vports[i]);
2825         lpfc_destroy_vport_work_array(phba, vports);
2826         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2827                         "0460 Bring Adapter offline\n");
2828         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2829            now.  */
2830         lpfc_sli_hba_down(phba);
2831         spin_lock_irq(&phba->hbalock);
2832         phba->work_ha = 0;
2833         spin_unlock_irq(&phba->hbalock);
2834         vports = lpfc_create_vport_work_array(phba);
2835         if (vports != NULL)
2836                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2837                         shost = lpfc_shost_from_vport(vports[i]);
2838                         spin_lock_irq(shost->host_lock);
2839                         vports[i]->work_port_events = 0;
2840                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2841                         spin_unlock_irq(shost->host_lock);
2842                 }
2843         lpfc_destroy_vport_work_array(phba, vports);
2844 }
2845
2846 /**
2847  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2848  * @phba: pointer to lpfc hba data structure.
2849  *
2850  * This routine is to free all the SCSI buffers and IOCBs from the driver
2851  * list back to kernel. It is called from lpfc_pci_remove_one to free
2852  * the internal resources before the device is removed from the system.
2853  **/
2854 static void
2855 lpfc_scsi_free(struct lpfc_hba *phba)
2856 {
2857         struct lpfc_scsi_buf *sb, *sb_next;
2858         struct lpfc_iocbq *io, *io_next;
2859
2860         spin_lock_irq(&phba->hbalock);
2861
2862         /* Release all the lpfc_scsi_bufs maintained by this host. */
2863
2864         spin_lock(&phba->scsi_buf_list_put_lock);
2865         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
2866                                  list) {
2867                 list_del(&sb->list);
2868                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2869                               sb->dma_handle);
2870                 kfree(sb);
2871                 phba->total_scsi_bufs--;
2872         }
2873         spin_unlock(&phba->scsi_buf_list_put_lock);
2874
2875         spin_lock(&phba->scsi_buf_list_get_lock);
2876         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
2877                                  list) {
2878                 list_del(&sb->list);
2879                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2880                               sb->dma_handle);
2881                 kfree(sb);
2882                 phba->total_scsi_bufs--;
2883         }
2884         spin_unlock(&phba->scsi_buf_list_get_lock);
2885
2886         /* Release all the lpfc_iocbq entries maintained by this host. */
2887         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2888                 list_del(&io->list);
2889                 kfree(io);
2890                 phba->total_iocbq_bufs--;
2891         }
2892
2893         spin_unlock_irq(&phba->hbalock);
2894 }
2895
2896 /**
2897  * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
2898  * @phba: pointer to lpfc hba data structure.
2899  *
2900  * This routine first calculates the sizes of the current els and allocated
2901  * scsi sgl lists, and then goes through all sgls to updates the physical
2902  * XRIs assigned due to port function reset. During port initialization, the
2903  * current els and allocated scsi sgl lists are 0s.
2904  *
2905  * Return codes
2906  *   0 - successful (for now, it always returns 0)
2907  **/
2908 int
2909 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
2910 {
2911         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
2912         struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
2913         uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
2914         LIST_HEAD(els_sgl_list);
2915         LIST_HEAD(scsi_sgl_list);
2916         int rc;
2917
2918         /*
2919          * update on pci function's els xri-sgl list
2920          */
2921         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
2922         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
2923                 /* els xri-sgl expanded */
2924                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
2925                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2926                                 "3157 ELS xri-sgl count increased from "
2927                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2928                                 els_xri_cnt);
2929                 /* allocate the additional els sgls */
2930                 for (i = 0; i < xri_cnt; i++) {
2931                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
2932                                              GFP_KERNEL);
2933                         if (sglq_entry == NULL) {
2934                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2935                                                 "2562 Failure to allocate an "
2936                                                 "ELS sgl entry:%d\n", i);
2937                                 rc = -ENOMEM;
2938                                 goto out_free_mem;
2939                         }
2940                         sglq_entry->buff_type = GEN_BUFF_TYPE;
2941                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
2942                                                            &sglq_entry->phys);
2943                         if (sglq_entry->virt == NULL) {
2944                                 kfree(sglq_entry);
2945                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2946                                                 "2563 Failure to allocate an "
2947                                                 "ELS mbuf:%d\n", i);
2948                                 rc = -ENOMEM;
2949                                 goto out_free_mem;
2950                         }
2951                         sglq_entry->sgl = sglq_entry->virt;
2952                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
2953                         sglq_entry->state = SGL_FREED;
2954                         list_add_tail(&sglq_entry->list, &els_sgl_list);
2955                 }
2956                 spin_lock_irq(&phba->hbalock);
2957                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2958                 spin_unlock_irq(&phba->hbalock);
2959         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
2960                 /* els xri-sgl shrinked */
2961                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
2962                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2963                                 "3158 ELS xri-sgl count decreased from "
2964                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2965                                 els_xri_cnt);
2966                 spin_lock_irq(&phba->hbalock);
2967                 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
2968                 spin_unlock_irq(&phba->hbalock);
2969                 /* release extra els sgls from list */
2970                 for (i = 0; i < xri_cnt; i++) {
2971                         list_remove_head(&els_sgl_list,
2972                                          sglq_entry, struct lpfc_sglq, list);
2973                         if (sglq_entry) {
2974                                 lpfc_mbuf_free(phba, sglq_entry->virt,
2975                                                sglq_entry->phys);
2976                                 kfree(sglq_entry);
2977                         }
2978                 }
2979                 spin_lock_irq(&phba->hbalock);
2980                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2981                 spin_unlock_irq(&phba->hbalock);
2982         } else
2983                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2984                                 "3163 ELS xri-sgl count unchanged: %d\n",
2985                                 els_xri_cnt);
2986         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
2987
2988         /* update xris to els sgls on the list */
2989         sglq_entry = NULL;
2990         sglq_entry_next = NULL;
2991         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
2992                                  &phba->sli4_hba.lpfc_sgl_list, list) {
2993                 lxri = lpfc_sli4_next_xritag(phba);
2994                 if (lxri == NO_XRI) {
2995                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2996                                         "2400 Failed to allocate xri for "
2997                                         "ELS sgl\n");
2998                         rc = -ENOMEM;
2999                         goto out_free_mem;
3000                 }
3001                 sglq_entry->sli4_lxritag = lxri;
3002                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3003         }
3004
3005         /*
3006          * update on pci function's allocated scsi xri-sgl list
3007          */
3008         phba->total_scsi_bufs = 0;
3009
3010         /* maximum number of xris available for scsi buffers */
3011         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3012                                       els_xri_cnt;
3013
3014         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3015                         "2401 Current allocated SCSI xri-sgl count:%d, "
3016                         "maximum  SCSI xri count:%d\n",
3017                         phba->sli4_hba.scsi_xri_cnt,
3018                         phba->sli4_hba.scsi_xri_max);
3019
3020         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3021         spin_lock_irq(&phba->scsi_buf_list_put_lock);
3022         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3023         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3024         spin_unlock_irq(&phba->scsi_buf_list_put_lock);
3025         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3026
3027         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3028                 /* max scsi xri shrinked below the allocated scsi buffers */
3029                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3030                                         phba->sli4_hba.scsi_xri_max;
3031                 /* release the extra allocated scsi buffers */
3032                 for (i = 0; i < scsi_xri_cnt; i++) {
3033                         list_remove_head(&scsi_sgl_list, psb,
3034                                          struct lpfc_scsi_buf, list);
3035                         pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data,
3036                                       psb->dma_handle);
3037                         kfree(psb);
3038                 }
3039                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3040                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3041                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3042         }
3043
3044         /* update xris associated to remaining allocated scsi buffers */
3045         psb = NULL;
3046         psb_next = NULL;
3047         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3048                 lxri = lpfc_sli4_next_xritag(phba);
3049                 if (lxri == NO_XRI) {
3050                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3051                                         "2560 Failed to allocate xri for "
3052                                         "scsi buffer\n");
3053                         rc = -ENOMEM;
3054                         goto out_free_mem;
3055                 }
3056                 psb->cur_iocbq.sli4_lxritag = lxri;
3057                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3058         }
3059         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3060         spin_lock_irq(&phba->scsi_buf_list_put_lock);
3061         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3062         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3063         spin_unlock_irq(&phba->scsi_buf_list_put_lock);
3064         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3065
3066         return 0;
3067
3068 out_free_mem:
3069         lpfc_free_els_sgl_list(phba);
3070         lpfc_scsi_free(phba);
3071         return rc;
3072 }
3073
3074 /**
3075  * lpfc_create_port - Create an FC port
3076  * @phba: pointer to lpfc hba data structure.
3077  * @instance: a unique integer ID to this FC port.
3078  * @dev: pointer to the device data structure.
3079  *
3080  * This routine creates a FC port for the upper layer protocol. The FC port
3081  * can be created on top of either a physical port or a virtual port provided
3082  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3083  * and associates the FC port created before adding the shost into the SCSI
3084  * layer.
3085  *
3086  * Return codes
3087  *   @vport - pointer to the virtual N_Port data structure.
3088  *   NULL - port create failed.
3089  **/
3090 struct lpfc_vport *
3091 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3092 {
3093         struct lpfc_vport *vport;
3094         struct Scsi_Host  *shost;
3095         int error = 0;
3096
3097         if (dev != &phba->pcidev->dev)
3098                 shost = scsi_host_alloc(&lpfc_vport_template,
3099                                         sizeof(struct lpfc_vport));
3100         else
3101                 shost = scsi_host_alloc(&lpfc_template,
3102                                         sizeof(struct lpfc_vport));
3103         if (!shost)
3104                 goto out;
3105
3106         vport = (struct lpfc_vport *) shost->hostdata;
3107         vport->phba = phba;
3108         vport->load_flag |= FC_LOADING;
3109         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3110         vport->fc_rscn_flush = 0;
3111
3112         lpfc_get_vport_cfgparam(vport);
3113         shost->unique_id = instance;
3114         shost->max_id = LPFC_MAX_TARGET;
3115         shost->max_lun = vport->cfg_max_luns;
3116         shost->this_id = -1;
3117         shost->max_cmd_len = 16;
3118         if (phba->sli_rev == LPFC_SLI_REV4) {
3119                 shost->dma_boundary =
3120                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3121                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3122         }
3123
3124         /*
3125          * Set initial can_queue value since 0 is no longer supported and
3126          * scsi_add_host will fail. This will be adjusted later based on the
3127          * max xri value determined in hba setup.
3128          */
3129         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3130         if (dev != &phba->pcidev->dev) {
3131                 shost->transportt = lpfc_vport_transport_template;
3132                 vport->port_type = LPFC_NPIV_PORT;
3133         } else {
3134                 shost->transportt = lpfc_transport_template;
3135                 vport->port_type = LPFC_PHYSICAL_PORT;
3136         }
3137
3138         /* Initialize all internally managed lists. */
3139         INIT_LIST_HEAD(&vport->fc_nodes);
3140         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3141         spin_lock_init(&vport->work_port_lock);
3142
3143         init_timer(&vport->fc_disctmo);
3144         vport->fc_disctmo.function = lpfc_disc_timeout;
3145         vport->fc_disctmo.data = (unsigned long)vport;
3146
3147         init_timer(&vport->fc_fdmitmo);
3148         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3149         vport->fc_fdmitmo.data = (unsigned long)vport;
3150
3151         init_timer(&vport->els_tmofunc);
3152         vport->els_tmofunc.function = lpfc_els_timeout;
3153         vport->els_tmofunc.data = (unsigned long)vport;
3154
3155         init_timer(&vport->delayed_disc_tmo);
3156         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3157         vport->delayed_disc_tmo.data = (unsigned long)vport;
3158
3159         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3160         if (error)
3161                 goto out_put_shost;
3162
3163         spin_lock_irq(&phba->hbalock);
3164         list_add_tail(&vport->listentry, &phba->port_list);
3165         spin_unlock_irq(&phba->hbalock);
3166         return vport;
3167
3168 out_put_shost:
3169         scsi_host_put(shost);
3170 out:
3171         return NULL;
3172 }
3173
3174 /**
3175  * destroy_port -  destroy an FC port
3176  * @vport: pointer to an lpfc virtual N_Port data structure.
3177  *
3178  * This routine destroys a FC port from the upper layer protocol. All the
3179  * resources associated with the port are released.
3180  **/
3181 void
3182 destroy_port(struct lpfc_vport *vport)
3183 {
3184         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3185         struct lpfc_hba  *phba = vport->phba;
3186
3187         lpfc_debugfs_terminate(vport);
3188         fc_remove_host(shost);
3189         scsi_remove_host(shost);
3190
3191         spin_lock_irq(&phba->hbalock);
3192         list_del_init(&vport->listentry);
3193         spin_unlock_irq(&phba->hbalock);
3194
3195         lpfc_cleanup(vport);
3196         return;
3197 }
3198
3199 /**
3200  * lpfc_get_instance - Get a unique integer ID
3201  *
3202  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3203  * uses the kernel idr facility to perform the task.
3204  *
3205  * Return codes:
3206  *   instance - a unique integer ID allocated as the new instance.
3207  *   -1 - lpfc get instance failed.
3208  **/
3209 int
3210 lpfc_get_instance(void)
3211 {
3212         int ret;
3213
3214         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3215         return ret < 0 ? -1 : ret;
3216 }
3217
3218 /**
3219  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3220  * @shost: pointer to SCSI host data structure.
3221  * @time: elapsed time of the scan in jiffies.
3222  *
3223  * This routine is called by the SCSI layer with a SCSI host to determine
3224  * whether the scan host is finished.
3225  *
3226  * Note: there is no scan_start function as adapter initialization will have
3227  * asynchronously kicked off the link initialization.
3228  *
3229  * Return codes
3230  *   0 - SCSI host scan is not over yet.
3231  *   1 - SCSI host scan is over.
3232  **/
3233 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3234 {
3235         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3236         struct lpfc_hba   *phba = vport->phba;
3237         int stat = 0;
3238
3239         spin_lock_irq(shost->host_lock);
3240
3241         if (vport->load_flag & FC_UNLOADING) {
3242                 stat = 1;
3243                 goto finished;
3244         }
3245         if (time >= msecs_to_jiffies(30 * 1000)) {
3246                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3247                                 "0461 Scanning longer than 30 "
3248                                 "seconds.  Continuing initialization\n");
3249                 stat = 1;
3250                 goto finished;
3251         }
3252         if (time >= msecs_to_jiffies(15 * 1000) &&
3253             phba->link_state <= LPFC_LINK_DOWN) {
3254                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3255                                 "0465 Link down longer than 15 "
3256                                 "seconds.  Continuing initialization\n");
3257                 stat = 1;
3258                 goto finished;
3259         }
3260
3261         if (vport->port_state != LPFC_VPORT_READY)
3262                 goto finished;
3263         if (vport->num_disc_nodes || vport->fc_prli_sent)
3264                 goto finished;
3265         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3266                 goto finished;
3267         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3268                 goto finished;
3269
3270         stat = 1;
3271
3272 finished:
3273         spin_unlock_irq(shost->host_lock);
3274         return stat;
3275 }
3276
3277 /**
3278  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3279  * @shost: pointer to SCSI host data structure.
3280  *
3281  * This routine initializes a given SCSI host attributes on a FC port. The
3282  * SCSI host can be either on top of a physical port or a virtual port.
3283  **/
3284 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3285 {
3286         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3287         struct lpfc_hba   *phba = vport->phba;
3288         /*
3289          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3290          */
3291
3292         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3293         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3294         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3295
3296         memset(fc_host_supported_fc4s(shost), 0,
3297                sizeof(fc_host_supported_fc4s(shost)));
3298         fc_host_supported_fc4s(shost)[2] = 1;
3299         fc_host_supported_fc4s(shost)[7] = 1;
3300
3301         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3302                                  sizeof fc_host_symbolic_name(shost));
3303
3304         fc_host_supported_speeds(shost) = 0;
3305         if (phba->lmt & LMT_16Gb)
3306                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3307         if (phba->lmt & LMT_10Gb)
3308                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3309         if (phba->lmt & LMT_8Gb)
3310                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3311         if (phba->lmt & LMT_4Gb)
3312                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3313         if (phba->lmt & LMT_2Gb)
3314                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3315         if (phba->lmt & LMT_1Gb)
3316                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3317
3318         fc_host_maxframe_size(shost) =
3319                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3320                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3321
3322         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3323
3324         /* This value is also unchanging */
3325         memset(fc_host_active_fc4s(shost), 0,
3326                sizeof(fc_host_active_fc4s(shost)));
3327         fc_host_active_fc4s(shost)[2] = 1;
3328         fc_host_active_fc4s(shost)[7] = 1;
3329
3330         fc_host_max_npiv_vports(shost) = phba->max_vpi;
3331         spin_lock_irq(shost->host_lock);
3332         vport->load_flag &= ~FC_LOADING;
3333         spin_unlock_irq(shost->host_lock);
3334 }
3335
3336 /**
3337  * lpfc_stop_port_s3 - Stop SLI3 device port
3338  * @phba: pointer to lpfc hba data structure.
3339  *
3340  * This routine is invoked to stop an SLI3 device port, it stops the device
3341  * from generating interrupts and stops the device driver's timers for the
3342  * device.
3343  **/
3344 static void
3345 lpfc_stop_port_s3(struct lpfc_hba *phba)
3346 {
3347         /* Clear all interrupt enable conditions */
3348         writel(0, phba->HCregaddr);
3349         readl(phba->HCregaddr); /* flush */
3350         /* Clear all pending interrupts */
3351         writel(0xffffffff, phba->HAregaddr);
3352         readl(phba->HAregaddr); /* flush */
3353
3354         /* Reset some HBA SLI setup states */
3355         lpfc_stop_hba_timers(phba);
3356         phba->pport->work_port_events = 0;
3357 }
3358
3359 /**
3360  * lpfc_stop_port_s4 - Stop SLI4 device port
3361  * @phba: pointer to lpfc hba data structure.
3362  *
3363  * This routine is invoked to stop an SLI4 device port, it stops the device
3364  * from generating interrupts and stops the device driver's timers for the
3365  * device.
3366  **/
3367 static void
3368 lpfc_stop_port_s4(struct lpfc_hba *phba)
3369 {
3370         /* Reset some HBA SLI4 setup states */
3371         lpfc_stop_hba_timers(phba);
3372         phba->pport->work_port_events = 0;
3373         phba->sli4_hba.intr_enable = 0;
3374 }
3375
3376 /**
3377  * lpfc_stop_port - Wrapper function for stopping hba port
3378  * @phba: Pointer to HBA context object.
3379  *
3380  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3381  * the API jump table function pointer from the lpfc_hba struct.
3382  **/
3383 void
3384 lpfc_stop_port(struct lpfc_hba *phba)
3385 {
3386         phba->lpfc_stop_port(phba);
3387 }
3388
3389 /**
3390  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3391  * @phba: Pointer to hba for which this call is being executed.
3392  *
3393  * This routine starts the timer waiting for the FCF rediscovery to complete.
3394  **/
3395 void
3396 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3397 {
3398         unsigned long fcf_redisc_wait_tmo =
3399                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3400         /* Start fcf rediscovery wait period timer */
3401         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3402         spin_lock_irq(&phba->hbalock);
3403         /* Allow action to new fcf asynchronous event */
3404         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3405         /* Mark the FCF rediscovery pending state */
3406         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3407         spin_unlock_irq(&phba->hbalock);
3408 }
3409
3410 /**
3411  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3412  * @ptr: Map to lpfc_hba data structure pointer.
3413  *
3414  * This routine is invoked when waiting for FCF table rediscover has been
3415  * timed out. If new FCF record(s) has (have) been discovered during the
3416  * wait period, a new FCF event shall be added to the FCOE async event
3417  * list, and then worker thread shall be waked up for processing from the
3418  * worker thread context.
3419  **/
3420 void
3421 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3422 {
3423         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3424
3425         /* Don't send FCF rediscovery event if timer cancelled */
3426         spin_lock_irq(&phba->hbalock);
3427         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3428                 spin_unlock_irq(&phba->hbalock);
3429                 return;
3430         }
3431         /* Clear FCF rediscovery timer pending flag */
3432         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3433         /* FCF rediscovery event to worker thread */
3434         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3435         spin_unlock_irq(&phba->hbalock);
3436         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3437                         "2776 FCF rediscover quiescent timer expired\n");
3438         /* wake up worker thread */
3439         lpfc_worker_wake_up(phba);
3440 }
3441
3442 /**
3443  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3444  * @phba: pointer to lpfc hba data structure.
3445  * @acqe_link: pointer to the async link completion queue entry.
3446  *
3447  * This routine is to parse the SLI4 link-attention link fault code and
3448  * translate it into the base driver's read link attention mailbox command
3449  * status.
3450  *
3451  * Return: Link-attention status in terms of base driver's coding.
3452  **/
3453 static uint16_t
3454 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3455                            struct lpfc_acqe_link *acqe_link)
3456 {
3457         uint16_t latt_fault;
3458
3459         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3460         case LPFC_ASYNC_LINK_FAULT_NONE:
3461         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3462         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3463                 latt_fault = 0;
3464                 break;
3465         default:
3466                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3467                                 "0398 Invalid link fault code: x%x\n",
3468                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3469                 latt_fault = MBXERR_ERROR;
3470                 break;
3471         }
3472         return latt_fault;
3473 }
3474
3475 /**
3476  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3477  * @phba: pointer to lpfc hba data structure.
3478  * @acqe_link: pointer to the async link completion queue entry.
3479  *
3480  * This routine is to parse the SLI4 link attention type and translate it
3481  * into the base driver's link attention type coding.
3482  *
3483  * Return: Link attention type in terms of base driver's coding.
3484  **/
3485 static uint8_t
3486 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3487                           struct lpfc_acqe_link *acqe_link)
3488 {
3489         uint8_t att_type;
3490
3491         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3492         case LPFC_ASYNC_LINK_STATUS_DOWN:
3493         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3494                 att_type = LPFC_ATT_LINK_DOWN;
3495                 break;
3496         case LPFC_ASYNC_LINK_STATUS_UP:
3497                 /* Ignore physical link up events - wait for logical link up */
3498                 att_type = LPFC_ATT_RESERVED;
3499                 break;
3500         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3501                 att_type = LPFC_ATT_LINK_UP;
3502                 break;
3503         default:
3504                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3505                                 "0399 Invalid link attention type: x%x\n",
3506                                 bf_get(lpfc_acqe_link_status, acqe_link));
3507                 att_type = LPFC_ATT_RESERVED;
3508                 break;
3509         }
3510         return att_type;
3511 }
3512
3513 /**
3514  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3515  * @phba: pointer to lpfc hba data structure.
3516  * @acqe_link: pointer to the async link completion queue entry.
3517  *
3518  * This routine is to parse the SLI4 link-attention link speed and translate
3519  * it into the base driver's link-attention link speed coding.
3520  *
3521  * Return: Link-attention link speed in terms of base driver's coding.
3522  **/
3523 static uint8_t
3524 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3525                                 struct lpfc_acqe_link *acqe_link)
3526 {
3527         uint8_t link_speed;
3528
3529         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3530         case LPFC_ASYNC_LINK_SPEED_ZERO:
3531         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3532         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3533                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3534                 break;
3535         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3536                 link_speed = LPFC_LINK_SPEED_1GHZ;
3537                 break;
3538         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3539                 link_speed = LPFC_LINK_SPEED_10GHZ;
3540                 break;
3541         default:
3542                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3543                                 "0483 Invalid link-attention link speed: x%x\n",
3544                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3545                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3546                 break;
3547         }
3548         return link_speed;
3549 }
3550
3551 /**
3552  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3553  * @phba: pointer to lpfc hba data structure.
3554  *
3555  * This routine is to get an SLI3 FC port's link speed in Mbps.
3556  *
3557  * Return: link speed in terms of Mbps.
3558  **/
3559 uint32_t
3560 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3561 {
3562         uint32_t link_speed;
3563
3564         if (!lpfc_is_link_up(phba))
3565                 return 0;
3566
3567         switch (phba->fc_linkspeed) {
3568         case LPFC_LINK_SPEED_1GHZ:
3569                 link_speed = 1000;
3570                 break;
3571         case LPFC_LINK_SPEED_2GHZ:
3572                 link_speed = 2000;
3573                 break;
3574         case LPFC_LINK_SPEED_4GHZ:
3575                 link_speed = 4000;
3576                 break;
3577         case LPFC_LINK_SPEED_8GHZ:
3578                 link_speed = 8000;
3579                 break;
3580         case LPFC_LINK_SPEED_10GHZ:
3581                 link_speed = 10000;
3582                 break;
3583         case LPFC_LINK_SPEED_16GHZ:
3584                 link_speed = 16000;
3585                 break;
3586         default:
3587                 link_speed = 0;
3588         }
3589         return link_speed;
3590 }
3591
3592 /**
3593  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3594  * @phba: pointer to lpfc hba data structure.
3595  * @evt_code: asynchronous event code.
3596  * @speed_code: asynchronous event link speed code.
3597  *
3598  * This routine is to parse the giving SLI4 async event link speed code into
3599  * value of Mbps for the link speed.
3600  *
3601  * Return: link speed in terms of Mbps.
3602  **/
3603 static uint32_t
3604 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3605                            uint8_t speed_code)
3606 {
3607         uint32_t port_speed;
3608
3609         switch (evt_code) {
3610         case LPFC_TRAILER_CODE_LINK:
3611                 switch (speed_code) {
3612                 case LPFC_EVT_CODE_LINK_NO_LINK:
3613                         port_speed = 0;
3614                         break;
3615                 case LPFC_EVT_CODE_LINK_10_MBIT:
3616                         port_speed = 10;
3617                         break;
3618                 case LPFC_EVT_CODE_LINK_100_MBIT:
3619                         port_speed = 100;
3620                         break;
3621                 case LPFC_EVT_CODE_LINK_1_GBIT:
3622                         port_speed = 1000;
3623                         break;
3624                 case LPFC_EVT_CODE_LINK_10_GBIT:
3625                         port_speed = 10000;
3626                         break;
3627                 default:
3628                         port_speed = 0;
3629                 }
3630                 break;
3631         case LPFC_TRAILER_CODE_FC:
3632                 switch (speed_code) {
3633                 case LPFC_EVT_CODE_FC_NO_LINK:
3634                         port_speed = 0;
3635                         break;
3636                 case LPFC_EVT_CODE_FC_1_GBAUD:
3637                         port_speed = 1000;
3638                         break;
3639                 case LPFC_EVT_CODE_FC_2_GBAUD:
3640                         port_speed = 2000;
3641                         break;
3642                 case LPFC_EVT_CODE_FC_4_GBAUD:
3643                         port_speed = 4000;
3644                         break;
3645                 case LPFC_EVT_CODE_FC_8_GBAUD:
3646                         port_speed = 8000;
3647                         break;
3648                 case LPFC_EVT_CODE_FC_10_GBAUD:
3649                         port_speed = 10000;
3650                         break;
3651                 case LPFC_EVT_CODE_FC_16_GBAUD:
3652                         port_speed = 16000;
3653                         break;
3654                 default:
3655                         port_speed = 0;
3656                 }
3657                 break;
3658         default:
3659                 port_speed = 0;
3660         }
3661         return port_speed;
3662 }
3663
3664 /**
3665  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3666  * @phba: pointer to lpfc hba data structure.
3667  * @acqe_link: pointer to the async link completion queue entry.
3668  *
3669  * This routine is to handle the SLI4 asynchronous FCoE link event.
3670  **/
3671 static void
3672 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3673                          struct lpfc_acqe_link *acqe_link)
3674 {
3675         struct lpfc_dmabuf *mp;
3676         LPFC_MBOXQ_t *pmb;
3677         MAILBOX_t *mb;
3678         struct lpfc_mbx_read_top *la;
3679         uint8_t att_type;
3680         int rc;
3681
3682         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3683         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3684                 return;
3685         phba->fcoe_eventtag = acqe_link->event_tag;
3686         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3687         if (!pmb) {
3688                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3689                                 "0395 The mboxq allocation failed\n");
3690                 return;
3691         }
3692         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3693         if (!mp) {
3694                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3695                                 "0396 The lpfc_dmabuf allocation failed\n");
3696                 goto out_free_pmb;
3697         }
3698         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3699         if (!mp->virt) {
3700                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3701                                 "0397 The mbuf allocation failed\n");
3702                 goto out_free_dmabuf;
3703         }
3704
3705         /* Cleanup any outstanding ELS commands */
3706         lpfc_els_flush_all_cmd(phba);
3707
3708         /* Block ELS IOCBs until we have done process link event */
3709         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3710
3711         /* Update link event statistics */
3712         phba->sli.slistat.link_event++;
3713
3714         /* Create lpfc_handle_latt mailbox command from link ACQE */
3715         lpfc_read_topology(phba, pmb, mp);
3716         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3717         pmb->vport = phba->pport;
3718
3719         /* Keep the link status for extra SLI4 state machine reference */
3720         phba->sli4_hba.link_state.speed =
3721                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3722                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3723         phba->sli4_hba.link_state.duplex =
3724                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3725         phba->sli4_hba.link_state.status =
3726                                 bf_get(lpfc_acqe_link_status, acqe_link);
3727         phba->sli4_hba.link_state.type =
3728                                 bf_get(lpfc_acqe_link_type, acqe_link);
3729         phba->sli4_hba.link_state.number =
3730                                 bf_get(lpfc_acqe_link_number, acqe_link);
3731         phba->sli4_hba.link_state.fault =
3732                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3733         phba->sli4_hba.link_state.logical_speed =
3734                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3735
3736         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3737                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3738                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3739                         "Logical speed:%dMbps Fault:%d\n",
3740                         phba->sli4_hba.link_state.speed,
3741                         phba->sli4_hba.link_state.topology,
3742                         phba->sli4_hba.link_state.status,
3743                         phba->sli4_hba.link_state.type,
3744                         phba->sli4_hba.link_state.number,
3745                         phba->sli4_hba.link_state.logical_speed,
3746                         phba->sli4_hba.link_state.fault);
3747         /*
3748          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3749          * topology info. Note: Optional for non FC-AL ports.
3750          */
3751         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3752                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3753                 if (rc == MBX_NOT_FINISHED)
3754                         goto out_free_dmabuf;
3755                 return;
3756         }
3757         /*
3758          * For FCoE Mode: fill in all the topology information we need and call
3759          * the READ_TOPOLOGY completion routine to continue without actually
3760          * sending the READ_TOPOLOGY mailbox command to the port.
3761          */
3762         /* Parse and translate status field */
3763         mb = &pmb->u.mb;
3764         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3765
3766         /* Parse and translate link attention fields */
3767         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3768         la->eventTag = acqe_link->event_tag;
3769         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3770         bf_set(lpfc_mbx_read_top_link_spd, la,
3771                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3772
3773         /* Fake the the following irrelvant fields */
3774         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3775         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3776         bf_set(lpfc_mbx_read_top_il, la, 0);
3777         bf_set(lpfc_mbx_read_top_pb, la, 0);
3778         bf_set(lpfc_mbx_read_top_fa, la, 0);
3779         bf_set(lpfc_mbx_read_top_mm, la, 0);
3780
3781         /* Invoke the lpfc_handle_latt mailbox command callback function */
3782         lpfc_mbx_cmpl_read_topology(phba, pmb);
3783
3784         return;
3785
3786 out_free_dmabuf:
3787         kfree(mp);
3788 out_free_pmb:
3789         mempool_free(pmb, phba->mbox_mem_pool);
3790 }
3791
3792 /**
3793  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3794  * @phba: pointer to lpfc hba data structure.
3795  * @acqe_fc: pointer to the async fc completion queue entry.
3796  *
3797  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3798  * that the event was received and then issue a read_topology mailbox command so
3799  * that the rest of the driver will treat it the same as SLI3.
3800  **/
3801 static void
3802 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3803 {
3804         struct lpfc_dmabuf *mp;
3805         LPFC_MBOXQ_t *pmb;
3806         int rc;
3807
3808         if (bf_get(lpfc_trailer_type, acqe_fc) !=
3809             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3810                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3811                                 "2895 Non FC link Event detected.(%d)\n",
3812                                 bf_get(lpfc_trailer_type, acqe_fc));
3813                 return;
3814         }
3815         /* Keep the link status for extra SLI4 state machine reference */
3816         phba->sli4_hba.link_state.speed =
3817                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
3818                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
3819         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3820         phba->sli4_hba.link_state.topology =
3821                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3822         phba->sli4_hba.link_state.status =
3823                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3824         phba->sli4_hba.link_state.type =
3825                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3826         phba->sli4_hba.link_state.number =
3827                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3828         phba->sli4_hba.link_state.fault =
3829                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
3830         phba->sli4_hba.link_state.logical_speed =
3831                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
3832         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3833                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3834                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3835                         "%dMbps Fault:%d\n",
3836                         phba->sli4_hba.link_state.speed,
3837                         phba->sli4_hba.link_state.topology,
3838                         phba->sli4_hba.link_state.status,
3839                         phba->sli4_hba.link_state.type,
3840                         phba->sli4_hba.link_state.number,
3841                         phba->sli4_hba.link_state.logical_speed,
3842                         phba->sli4_hba.link_state.fault);
3843         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3844         if (!pmb) {
3845                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3846                                 "2897 The mboxq allocation failed\n");
3847                 return;
3848         }
3849         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3850         if (!mp) {
3851                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3852                                 "2898 The lpfc_dmabuf allocation failed\n");
3853                 goto out_free_pmb;
3854         }
3855         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3856         if (!mp->virt) {
3857                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3858                                 "2899 The mbuf allocation failed\n");
3859                 goto out_free_dmabuf;
3860         }
3861
3862         /* Cleanup any outstanding ELS commands */
3863         lpfc_els_flush_all_cmd(phba);
3864
3865         /* Block ELS IOCBs until we have done process link event */
3866         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3867
3868         /* Update link event statistics */
3869         phba->sli.slistat.link_event++;
3870
3871         /* Create lpfc_handle_latt mailbox command from link ACQE */
3872         lpfc_read_topology(phba, pmb, mp);
3873         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3874         pmb->vport = phba->pport;
3875
3876         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3877         if (rc == MBX_NOT_FINISHED)
3878                 goto out_free_dmabuf;
3879         return;
3880
3881 out_free_dmabuf:
3882         kfree(mp);
3883 out_free_pmb:
3884         mempool_free(pmb, phba->mbox_mem_pool);
3885 }
3886
3887 /**
3888  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3889  * @phba: pointer to lpfc hba data structure.
3890  * @acqe_fc: pointer to the async SLI completion queue entry.
3891  *
3892  * This routine is to handle the SLI4 asynchronous SLI events.
3893  **/
3894 static void
3895 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3896 {
3897         char port_name;
3898         char message[128];
3899         uint8_t status;
3900         struct lpfc_acqe_misconfigured_event *misconfigured;
3901
3902         /* special case misconfigured event as it contains data for all ports */
3903         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
3904                  LPFC_SLI_INTF_IF_TYPE_2) ||
3905                 (bf_get(lpfc_trailer_type, acqe_sli) !=
3906                         LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) {
3907                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3908                                 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3909                                 "x%08x SLI Event Type:%d\n",
3910                                 acqe_sli->event_data1, acqe_sli->event_data2,
3911                                 bf_get(lpfc_trailer_type, acqe_sli));
3912                 return;
3913         }
3914
3915         port_name = phba->Port[0];
3916         if (port_name == 0x00)
3917                 port_name = '?'; /* get port name is empty */
3918
3919         misconfigured = (struct lpfc_acqe_misconfigured_event *)
3920                                         &acqe_sli->event_data1;
3921
3922         /* fetch the status for this port */
3923         switch (phba->sli4_hba.lnk_info.lnk_no) {
3924         case LPFC_LINK_NUMBER_0:
3925                 status = bf_get(lpfc_sli_misconfigured_port0,
3926                                         &misconfigured->theEvent);
3927                 break;
3928         case LPFC_LINK_NUMBER_1:
3929                 status = bf_get(lpfc_sli_misconfigured_port1,
3930                                         &misconfigured->theEvent);
3931                 break;
3932         case LPFC_LINK_NUMBER_2:
3933                 status = bf_get(lpfc_sli_misconfigured_port2,
3934                                         &misconfigured->theEvent);
3935                 break;
3936         case LPFC_LINK_NUMBER_3:
3937                 status = bf_get(lpfc_sli_misconfigured_port3,
3938                                         &misconfigured->theEvent);
3939                 break;
3940         default:
3941                 status = ~LPFC_SLI_EVENT_STATUS_VALID;
3942                 break;
3943         }
3944
3945         switch (status) {
3946         case LPFC_SLI_EVENT_STATUS_VALID:
3947                 return; /* no message if the sfp is okay */
3948         case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
3949                 sprintf(message, "Optics faulted/incorrectly installed/not " \
3950                                 "installed - Reseat optics, if issue not "
3951                                 "resolved, replace.");
3952                 break;
3953         case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
3954                 sprintf(message,
3955                         "Optics of two types installed - Remove one optic or " \
3956                         "install matching pair of optics.");
3957                 break;
3958         case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
3959                 sprintf(message, "Incompatible optics - Replace with " \
3960                                 "compatible optics for card to function.");
3961                 break;
3962         default:
3963                 /* firmware is reporting a status we don't know about */
3964                 sprintf(message, "Unknown event status x%02x", status);
3965                 break;
3966         }
3967
3968         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3969                         "3176 Misconfigured Physical Port - "
3970                         "Port Name %c %s\n", port_name, message);
3971 }
3972
3973 /**
3974  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3975  * @vport: pointer to vport data structure.
3976  *
3977  * This routine is to perform Clear Virtual Link (CVL) on a vport in
3978  * response to a CVL event.
3979  *
3980  * Return the pointer to the ndlp with the vport if successful, otherwise
3981  * return NULL.
3982  **/
3983 static struct lpfc_nodelist *
3984 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3985 {
3986         struct lpfc_nodelist *ndlp;
3987         struct Scsi_Host *shost;
3988         struct lpfc_hba *phba;
3989
3990         if (!vport)
3991                 return NULL;
3992         phba = vport->phba;
3993         if (!phba)
3994                 return NULL;
3995         ndlp = lpfc_findnode_did(vport, Fabric_DID);
3996         if (!ndlp) {
3997                 /* Cannot find existing Fabric ndlp, so allocate a new one */
3998                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3999                 if (!ndlp)
4000                         return 0;
4001                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4002                 /* Set the node type */
4003                 ndlp->nlp_type |= NLP_FABRIC;
4004                 /* Put ndlp onto node list */
4005                 lpfc_enqueue_node(vport, ndlp);
4006         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4007                 /* re-setup ndlp without removing from node list */
4008                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4009                 if (!ndlp)
4010                         return 0;
4011         }
4012         if ((phba->pport->port_state < LPFC_FLOGI) &&
4013                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4014                 return NULL;
4015         /* If virtual link is not yet instantiated ignore CVL */
4016         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4017                 && (vport->port_state != LPFC_VPORT_FAILED))
4018                 return NULL;
4019         shost = lpfc_shost_from_vport(vport);
4020         if (!shost)
4021                 return NULL;
4022         lpfc_linkdown_port(vport);
4023         lpfc_cleanup_pending_mbox(vport);
4024         spin_lock_irq(shost->host_lock);
4025         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4026         spin_unlock_irq(shost->host_lock);
4027
4028         return ndlp;
4029 }
4030
4031 /**
4032  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4033  * @vport: pointer to lpfc hba data structure.
4034  *
4035  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4036  * response to a FCF dead event.
4037  **/
4038 static void
4039 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4040 {
4041         struct lpfc_vport **vports;
4042         int i;
4043
4044         vports = lpfc_create_vport_work_array(phba);
4045         if (vports)
4046                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4047                         lpfc_sli4_perform_vport_cvl(vports[i]);
4048         lpfc_destroy_vport_work_array(phba, vports);
4049 }
4050
4051 /**
4052  * lpfc_sli4_perform_inuse_fcf_recovery - Perform inuse fcf recovery
4053  * @vport: pointer to lpfc hba data structure.
4054  *
4055  * This routine is to perform FCF recovery when the in-use FCF either dead or
4056  * got modified.
4057  **/
4058 static void
4059 lpfc_sli4_perform_inuse_fcf_recovery(struct lpfc_hba *phba,
4060                                      struct lpfc_acqe_fip *acqe_fip)
4061 {
4062         int rc;
4063
4064         spin_lock_irq(&phba->hbalock);
4065         /* Mark the fast failover process in progress */
4066         phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4067         spin_unlock_irq(&phba->hbalock);
4068
4069         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4070                         "2771 Start FCF fast failover process due to in-use "
4071                         "FCF DEAD/MODIFIED event: evt_tag:x%x, index:x%x\n",
4072                         acqe_fip->event_tag, acqe_fip->index);
4073         rc = lpfc_sli4_redisc_fcf_table(phba);
4074         if (rc) {
4075                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4076                                 "2772 Issue FCF rediscover mabilbox command "
4077                                 "failed, fail through to FCF dead event\n");
4078                 spin_lock_irq(&phba->hbalock);
4079                 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4080                 spin_unlock_irq(&phba->hbalock);
4081                 /*
4082                  * Last resort will fail over by treating this as a link
4083                  * down to FCF registration.
4084                  */
4085                 lpfc_sli4_fcf_dead_failthrough(phba);
4086         } else {
4087                 /* Reset FCF roundrobin bmask for new discovery */
4088                 lpfc_sli4_clear_fcf_rr_bmask(phba);
4089                 /*
4090                  * Handling fast FCF failover to a DEAD FCF event is
4091                  * considered equalivant to receiving CVL to all vports.
4092                  */
4093                 lpfc_sli4_perform_all_vport_cvl(phba);
4094         }
4095 }
4096
4097 /**
4098  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4099  * @phba: pointer to lpfc hba data structure.
4100  * @acqe_link: pointer to the async fcoe completion queue entry.
4101  *
4102  * This routine is to handle the SLI4 asynchronous fcoe event.
4103  **/
4104 static void
4105 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4106                         struct lpfc_acqe_fip *acqe_fip)
4107 {
4108         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4109         int rc;
4110         struct lpfc_vport *vport;
4111         struct lpfc_nodelist *ndlp;
4112         struct Scsi_Host  *shost;
4113         int active_vlink_present;
4114         struct lpfc_vport **vports;
4115         int i;
4116
4117         phba->fc_eventTag = acqe_fip->event_tag;
4118         phba->fcoe_eventtag = acqe_fip->event_tag;
4119         switch (event_type) {
4120         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4121         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4122                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4123                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4124                                         LOG_DISCOVERY,
4125                                         "2546 New FCF event, evt_tag:x%x, "
4126                                         "index:x%x\n",
4127                                         acqe_fip->event_tag,
4128                                         acqe_fip->index);
4129                 else
4130                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4131                                         LOG_DISCOVERY,
4132                                         "2788 FCF param modified event, "
4133                                         "evt_tag:x%x, index:x%x\n",
4134                                         acqe_fip->event_tag,
4135                                         acqe_fip->index);
4136                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4137                         /*
4138                          * During period of FCF discovery, read the FCF
4139                          * table record indexed by the event to update
4140                          * FCF roundrobin failover eligible FCF bmask.
4141                          */
4142                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4143                                         LOG_DISCOVERY,
4144                                         "2779 Read FCF (x%x) for updating "
4145                                         "roundrobin FCF failover bmask\n",
4146                                         acqe_fip->index);
4147                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4148                 }
4149
4150                 /* If the FCF discovery is in progress, do nothing. */
4151                 spin_lock_irq(&phba->hbalock);
4152                 if (phba->hba_flag & FCF_TS_INPROG) {
4153                         spin_unlock_irq(&phba->hbalock);
4154                         break;
4155                 }
4156                 /* If fast FCF failover rescan event is pending, do nothing */
4157                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4158                         spin_unlock_irq(&phba->hbalock);
4159                         break;
4160                 }
4161
4162                 /* If FCF has been in discovered state, perform rediscovery
4163                  * only if the FCF with the same index of the in-use FCF got
4164                  * modified during normal operation. Otherwise, do nothing.
4165                  */
4166                 if (phba->pport->port_state > LPFC_FLOGI) {
4167                         spin_unlock_irq(&phba->hbalock);
4168                         if (phba->fcf.current_rec.fcf_indx ==
4169                             acqe_fip->index) {
4170                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
4171                                                 "3300 In-use FCF (%d) "
4172                                                 "modified, perform FCF "
4173                                                 "rediscovery\n",
4174                                                 acqe_fip->index);
4175                                 lpfc_sli4_perform_inuse_fcf_recovery(phba,
4176                                                                      acqe_fip);
4177                         }
4178                         break;
4179                 }
4180                 spin_unlock_irq(&phba->hbalock);
4181
4182                 /* Otherwise, scan the entire FCF table and re-discover SAN */
4183                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4184                                 "2770 Start FCF table scan per async FCF "
4185                                 "event, evt_tag:x%x, index:x%x\n",
4186                                 acqe_fip->event_tag, acqe_fip->index);
4187                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4188                                                      LPFC_FCOE_FCF_GET_FIRST);
4189                 if (rc)
4190                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4191                                         "2547 Issue FCF scan read FCF mailbox "
4192                                         "command failed (x%x)\n", rc);
4193                 break;
4194
4195         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4196                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4197                         "2548 FCF Table full count 0x%x tag 0x%x\n",
4198                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4199                         acqe_fip->event_tag);
4200                 break;
4201
4202         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4203                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4204                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4205                         "2549 FCF (x%x) disconnected from network, "
4206                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4207                 /*
4208                  * If we are in the middle of FCF failover process, clear
4209                  * the corresponding FCF bit in the roundrobin bitmap.
4210                  */
4211                 spin_lock_irq(&phba->hbalock);
4212                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4213                         spin_unlock_irq(&phba->hbalock);
4214                         /* Update FLOGI FCF failover eligible FCF bmask */
4215                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4216                         break;
4217                 }
4218                 spin_unlock_irq(&phba->hbalock);
4219
4220                 /* If the event is not for currently used fcf do nothing */
4221                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4222                         break;
4223
4224                 /*
4225                  * Otherwise, request the port to rediscover the entire FCF
4226                  * table for a fast recovery from case that the current FCF
4227                  * is no longer valid as we are not in the middle of FCF
4228                  * failover process already.
4229                  */
4230                 lpfc_sli4_perform_inuse_fcf_recovery(phba, acqe_fip);
4231                 break;
4232         case LPFC_FIP_EVENT_TYPE_CVL:
4233                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4234                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4235                         "2718 Clear Virtual Link Received for VPI 0x%x"
4236                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4237
4238                 vport = lpfc_find_vport_by_vpid(phba,
4239                                                 acqe_fip->index);
4240                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4241                 if (!ndlp)
4242                         break;
4243                 active_vlink_present = 0;
4244
4245                 vports = lpfc_create_vport_work_array(phba);
4246                 if (vports) {
4247                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4248                                         i++) {
4249                                 if ((!(vports[i]->fc_flag &
4250                                         FC_VPORT_CVL_RCVD)) &&
4251                                         (vports[i]->port_state > LPFC_FDISC)) {
4252                                         active_vlink_present = 1;
4253                                         break;
4254                                 }
4255                         }
4256                         lpfc_destroy_vport_work_array(phba, vports);
4257                 }
4258
4259                 if (active_vlink_present) {
4260                         /*
4261                          * If there are other active VLinks present,
4262                          * re-instantiate the Vlink using FDISC.
4263                          */
4264                         mod_timer(&ndlp->nlp_delayfunc,
4265                                   jiffies + msecs_to_jiffies(1000));
4266                         shost = lpfc_shost_from_vport(vport);
4267                         spin_lock_irq(shost->host_lock);
4268                         ndlp->nlp_flag |= NLP_DELAY_TMO;
4269                         spin_unlock_irq(shost->host_lock);
4270                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4271                         vport->port_state = LPFC_FDISC;
4272                 } else {
4273                         /*
4274                          * Otherwise, we request port to rediscover
4275                          * the entire FCF table for a fast recovery
4276                          * from possible case that the current FCF
4277                          * is no longer valid if we are not already
4278                          * in the FCF failover process.
4279                          */
4280                         spin_lock_irq(&phba->hbalock);
4281                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4282                                 spin_unlock_irq(&phba->hbalock);
4283                                 break;
4284                         }
4285                         /* Mark the fast failover process in progress */
4286                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4287                         spin_unlock_irq(&phba->hbalock);
4288                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4289                                         LOG_DISCOVERY,
4290                                         "2773 Start FCF failover per CVL, "
4291                                         "evt_tag:x%x\n", acqe_fip->event_tag);
4292                         rc = lpfc_sli4_redisc_fcf_table(phba);
4293                         if (rc) {
4294                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4295                                                 LOG_DISCOVERY,
4296                                                 "2774 Issue FCF rediscover "
4297                                                 "mabilbox command failed, "
4298                                                 "through to CVL event\n");
4299                                 spin_lock_irq(&phba->hbalock);
4300                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4301                                 spin_unlock_irq(&phba->hbalock);
4302                                 /*
4303                                  * Last resort will be re-try on the
4304                                  * the current registered FCF entry.
4305                                  */
4306                                 lpfc_retry_pport_discovery(phba);
4307                         } else
4308                                 /*
4309                                  * Reset FCF roundrobin bmask for new
4310                                  * discovery.
4311                                  */
4312                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
4313                 }
4314                 break;
4315         default:
4316                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4317                         "0288 Unknown FCoE event type 0x%x event tag "
4318                         "0x%x\n", event_type, acqe_fip->event_tag);
4319                 break;
4320         }
4321 }
4322
4323 /**
4324  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4325  * @phba: pointer to lpfc hba data structure.
4326  * @acqe_link: pointer to the async dcbx completion queue entry.
4327  *
4328  * This routine is to handle the SLI4 asynchronous dcbx event.
4329  **/
4330 static void
4331 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4332                          struct lpfc_acqe_dcbx *acqe_dcbx)
4333 {
4334         phba->fc_eventTag = acqe_dcbx->event_tag;
4335         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4336                         "0290 The SLI4 DCBX asynchronous event is not "
4337                         "handled yet\n");
4338 }
4339
4340 /**
4341  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4342  * @phba: pointer to lpfc hba data structure.
4343  * @acqe_link: pointer to the async grp5 completion queue entry.
4344  *
4345  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4346  * is an asynchronous notified of a logical link speed change.  The Port
4347  * reports the logical link speed in units of 10Mbps.
4348  **/
4349 static void
4350 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4351                          struct lpfc_acqe_grp5 *acqe_grp5)
4352 {
4353         uint16_t prev_ll_spd;
4354
4355         phba->fc_eventTag = acqe_grp5->event_tag;
4356         phba->fcoe_eventtag = acqe_grp5->event_tag;
4357         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4358         phba->sli4_hba.link_state.logical_speed =
4359                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4360         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4361                         "2789 GRP5 Async Event: Updating logical link speed "
4362                         "from %dMbps to %dMbps\n", prev_ll_spd,
4363                         phba->sli4_hba.link_state.logical_speed);
4364 }
4365
4366 /**
4367  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4368  * @phba: pointer to lpfc hba data structure.
4369  *
4370  * This routine is invoked by the worker thread to process all the pending
4371  * SLI4 asynchronous events.
4372  **/
4373 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4374 {
4375         struct lpfc_cq_event *cq_event;
4376
4377         /* First, declare the async event has been handled */
4378         spin_lock_irq(&phba->hbalock);
4379         phba->hba_flag &= ~ASYNC_EVENT;
4380         spin_unlock_irq(&phba->hbalock);
4381         /* Now, handle all the async events */
4382         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4383                 /* Get the first event from the head of the event queue */
4384                 spin_lock_irq(&phba->hbalock);
4385                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4386                                  cq_event, struct lpfc_cq_event, list);
4387                 spin_unlock_irq(&phba->hbalock);
4388                 /* Process the asynchronous event */
4389                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4390                 case LPFC_TRAILER_CODE_LINK:
4391                         lpfc_sli4_async_link_evt(phba,
4392                                                  &cq_event->cqe.acqe_link);
4393                         break;
4394                 case LPFC_TRAILER_CODE_FCOE:
4395                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4396                         break;
4397                 case LPFC_TRAILER_CODE_DCBX:
4398                         lpfc_sli4_async_dcbx_evt(phba,
4399                                                  &cq_event->cqe.acqe_dcbx);
4400                         break;
4401                 case LPFC_TRAILER_CODE_GRP5:
4402                         lpfc_sli4_async_grp5_evt(phba,
4403                                                  &cq_event->cqe.acqe_grp5);
4404                         break;
4405                 case LPFC_TRAILER_CODE_FC:
4406                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4407                         break;
4408                 case LPFC_TRAILER_CODE_SLI:
4409                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4410                         break;
4411                 default:
4412                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4413                                         "1804 Invalid asynchrous event code: "
4414                                         "x%x\n", bf_get(lpfc_trailer_code,
4415                                         &cq_event->cqe.mcqe_cmpl));
4416                         break;
4417                 }
4418                 /* Free the completion event processed to the free pool */
4419                 lpfc_sli4_cq_event_release(phba, cq_event);
4420         }
4421 }
4422
4423 /**
4424  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4425  * @phba: pointer to lpfc hba data structure.
4426  *
4427  * This routine is invoked by the worker thread to process FCF table
4428  * rediscovery pending completion event.
4429  **/
4430 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4431 {
4432         int rc;
4433
4434         spin_lock_irq(&phba->hbalock);
4435         /* Clear FCF rediscovery timeout event */
4436         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4437         /* Clear driver fast failover FCF record flag */
4438         phba->fcf.failover_rec.flag = 0;
4439         /* Set state for FCF fast failover */
4440         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4441         spin_unlock_irq(&phba->hbalock);
4442
4443         /* Scan FCF table from the first entry to re-discover SAN */
4444         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4445                         "2777 Start post-quiescent FCF table scan\n");
4446         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4447         if (rc)
4448                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4449                                 "2747 Issue FCF scan read FCF mailbox "
4450                                 "command failed 0x%x\n", rc);
4451 }
4452
4453 /**
4454  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4455  * @phba: pointer to lpfc hba data structure.
4456  * @dev_grp: The HBA PCI-Device group number.
4457  *
4458  * This routine is invoked to set up the per HBA PCI-Device group function
4459  * API jump table entries.
4460  *
4461  * Return: 0 if success, otherwise -ENODEV
4462  **/
4463 int
4464 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4465 {
4466         int rc;
4467
4468         /* Set up lpfc PCI-device group */
4469         phba->pci_dev_grp = dev_grp;
4470
4471         /* The LPFC_PCI_DEV_OC uses SLI4 */
4472         if (dev_grp == LPFC_PCI_DEV_OC)
4473                 phba->sli_rev = LPFC_SLI_REV4;
4474
4475         /* Set up device INIT API function jump table */
4476         rc = lpfc_init_api_table_setup(phba, dev_grp);
4477         if (rc)
4478                 return -ENODEV;
4479         /* Set up SCSI API function jump table */
4480         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4481         if (rc)
4482                 return -ENODEV;
4483         /* Set up SLI API function jump table */
4484         rc = lpfc_sli_api_table_setup(phba, dev_grp);
4485         if (rc)
4486                 return -ENODEV;
4487         /* Set up MBOX API function jump table */
4488         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4489         if (rc)
4490                 return -ENODEV;
4491
4492         return 0;
4493 }
4494
4495 /**
4496  * lpfc_log_intr_mode - Log the active interrupt mode
4497  * @phba: pointer to lpfc hba data structure.
4498  * @intr_mode: active interrupt mode adopted.
4499  *
4500  * This routine it invoked to log the currently used active interrupt mode
4501  * to the device.
4502  **/
4503 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4504 {
4505         switch (intr_mode) {
4506         case 0:
4507                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4508                                 "0470 Enable INTx interrupt mode.\n");
4509                 break;
4510         case 1:
4511                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4512                                 "0481 Enabled MSI interrupt mode.\n");
4513                 break;
4514         case 2:
4515                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4516                                 "0480 Enabled MSI-X interrupt mode.\n");
4517                 break;
4518         default:
4519                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4520                                 "0482 Illegal interrupt mode.\n");
4521                 break;
4522         }
4523         return;
4524 }
4525
4526 /**
4527  * lpfc_enable_pci_dev - Enable a generic PCI device.
4528  * @phba: pointer to lpfc hba data structure.
4529  *
4530  * This routine is invoked to enable the PCI device that is common to all
4531  * PCI devices.
4532  *
4533  * Return codes
4534  *      0 - successful
4535  *      other values - error
4536  **/
4537 static int
4538 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4539 {
4540         struct pci_dev *pdev;
4541         int bars = 0;
4542
4543         /* Obtain PCI device reference */
4544         if (!phba->pcidev)
4545                 goto out_error;
4546         else
4547                 pdev = phba->pcidev;
4548         /* Select PCI BARs */
4549         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4550         /* Enable PCI device */
4551         if (pci_enable_device_mem(pdev))
4552                 goto out_error;
4553         /* Request PCI resource for the device */
4554         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4555                 goto out_disable_device;
4556         /* Set up device as PCI master and save state for EEH */
4557         pci_set_master(pdev);
4558         pci_try_set_mwi(pdev);
4559         pci_save_state(pdev);
4560
4561         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4562         if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
4563                 pdev->needs_freset = 1;
4564
4565         return 0;
4566
4567 out_disable_device:
4568         pci_disable_device(pdev);
4569 out_error:
4570         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4571                         "1401 Failed to enable pci device, bars:x%x\n", bars);
4572         return -ENODEV;
4573 }
4574
4575 /**
4576  * lpfc_disable_pci_dev - Disable a generic PCI device.
4577  * @phba: pointer to lpfc hba data structure.
4578  *
4579  * This routine is invoked to disable the PCI device that is common to all
4580  * PCI devices.
4581  **/
4582 static void
4583 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4584 {
4585         struct pci_dev *pdev;
4586         int bars;
4587
4588         /* Obtain PCI device reference */
4589         if (!phba->pcidev)
4590                 return;
4591         else
4592                 pdev = phba->pcidev;
4593         /* Select PCI BARs */
4594         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4595         /* Release PCI resource and disable PCI device */
4596         pci_release_selected_regions(pdev, bars);
4597         pci_disable_device(pdev);
4598         /* Null out PCI private reference to driver */
4599         pci_set_drvdata(pdev, NULL);
4600
4601         return;
4602 }
4603
4604 /**
4605  * lpfc_reset_hba - Reset a hba
4606  * @phba: pointer to lpfc hba data structure.
4607  *
4608  * This routine is invoked to reset a hba device. It brings the HBA
4609  * offline, performs a board restart, and then brings the board back
4610  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4611  * on outstanding mailbox commands.
4612  **/
4613 void
4614 lpfc_reset_hba(struct lpfc_hba *phba)
4615 {
4616         /* If resets are disabled then set error state and return. */
4617         if (!phba->cfg_enable_hba_reset) {
4618                 phba->link_state = LPFC_HBA_ERROR;
4619                 return;
4620         }
4621         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4622         lpfc_offline(phba);
4623         lpfc_sli_brdrestart(phba);
4624         lpfc_online(phba);
4625         lpfc_unblock_mgmt_io(phba);
4626 }
4627
4628 /**
4629  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4630  * @phba: pointer to lpfc hba data structure.
4631  *
4632  * This function enables the PCI SR-IOV virtual functions to a physical
4633  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4634  * enable the number of virtual functions to the physical function. As
4635  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4636  * API call does not considered as an error condition for most of the device.
4637  **/
4638 uint16_t
4639 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4640 {
4641         struct pci_dev *pdev = phba->pcidev;
4642         uint16_t nr_virtfn;
4643         int pos;
4644
4645         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4646         if (pos == 0)
4647                 return 0;
4648
4649         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4650         return nr_virtfn;
4651 }
4652
4653 /**
4654  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4655  * @phba: pointer to lpfc hba data structure.
4656  * @nr_vfn: number of virtual functions to be enabled.
4657  *
4658  * This function enables the PCI SR-IOV virtual functions to a physical
4659  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4660  * enable the number of virtual functions to the physical function. As
4661  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4662  * API call does not considered as an error condition for most of the device.
4663  **/
4664 int
4665 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4666 {
4667         struct pci_dev *pdev = phba->pcidev;
4668         uint16_t max_nr_vfn;
4669         int rc;
4670
4671         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4672         if (nr_vfn > max_nr_vfn) {
4673                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4674                                 "3057 Requested vfs (%d) greater than "
4675                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4676                 return -EINVAL;
4677         }
4678
4679         rc = pci_enable_sriov(pdev, nr_vfn);
4680         if (rc) {
4681                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4682                                 "2806 Failed to enable sriov on this device "
4683                                 "with vfn number nr_vf:%d, rc:%d\n",
4684                                 nr_vfn, rc);
4685         } else
4686                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4687                                 "2807 Successful enable sriov on this device "
4688                                 "with vfn number nr_vf:%d\n", nr_vfn);
4689         return rc;
4690 }
4691
4692 /**
4693  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4694  * @phba: pointer to lpfc hba data structure.
4695  *
4696  * This routine is invoked to set up the driver internal resources specific to
4697  * support the SLI-3 HBA device it attached to.
4698  *
4699  * Return codes
4700  *      0 - successful
4701  *      other values - error
4702  **/
4703 static int
4704 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4705 {
4706         struct lpfc_sli *psli;
4707         int rc;
4708
4709         /*
4710          * Initialize timers used by driver
4711          */
4712
4713         /* Heartbeat timer */
4714         init_timer(&phba->hb_tmofunc);
4715         phba->hb_tmofunc.function = lpfc_hb_timeout;
4716         phba->hb_tmofunc.data = (unsigned long)phba;
4717
4718         psli = &phba->sli;
4719         /* MBOX heartbeat timer */
4720         init_timer(&psli->mbox_tmo);
4721         psli->mbox_tmo.function = lpfc_mbox_timeout;
4722         psli->mbox_tmo.data = (unsigned long) phba;
4723         /* FCP polling mode timer */
4724         init_timer(&phba->fcp_poll_timer);
4725         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4726         phba->fcp_poll_timer.data = (unsigned long) phba;
4727         /* Fabric block timer */
4728         init_timer(&phba->fabric_block_timer);
4729         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4730         phba->fabric_block_timer.data = (unsigned long) phba;
4731         /* EA polling mode timer */
4732         init_timer(&phba->eratt_poll);
4733         phba->eratt_poll.function = lpfc_poll_eratt;
4734         phba->eratt_poll.data = (unsigned long) phba;
4735
4736         /* Host attention work mask setup */
4737         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4738         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4739
4740         /* Get all the module params for configuring this host */
4741         lpfc_get_cfgparam(phba);
4742         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4743                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4744                 /* check for menlo minimum sg count */
4745                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4746                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4747         }
4748
4749         if (!phba->sli.ring)
4750                 phba->sli.ring = (struct lpfc_sli_ring *)
4751                         kzalloc(LPFC_SLI3_MAX_RING *
4752                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4753         if (!phba->sli.ring)
4754                 return -ENOMEM;
4755
4756         /*
4757          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4758          * used to create the sg_dma_buf_pool must be dynamically calculated.
4759          */
4760
4761         /* Initialize the host templates the configured values. */
4762         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4763         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4764
4765         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
4766         if (phba->cfg_enable_bg) {
4767                 /*
4768                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
4769                  * the FCP rsp, and a BDE for each. Sice we have no control
4770                  * over how many protection data segments the SCSI Layer
4771                  * will hand us (ie: there could be one for every block
4772                  * in the IO), we just allocate enough BDEs to accomidate
4773                  * our max amount and we need to limit lpfc_sg_seg_cnt to
4774                  * minimize the risk of running out.
4775                  */
4776                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4777                         sizeof(struct fcp_rsp) +
4778                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
4779
4780                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
4781                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
4782
4783                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
4784                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4785         } else {
4786                 /*
4787                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
4788                  * the FCP rsp, a BDE for each, and a BDE for up to
4789                  * cfg_sg_seg_cnt data segments.
4790                  */
4791                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4792                         sizeof(struct fcp_rsp) +
4793                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4794
4795                 /* Total BDEs in BPL for scsi_sg_list */
4796                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
4797         }
4798
4799         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4800                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
4801                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
4802                         phba->cfg_total_seg_cnt);
4803
4804         phba->max_vpi = LPFC_MAX_VPI;
4805         /* This will be set to correct value after config_port mbox */
4806         phba->max_vports = 0;
4807
4808         /*
4809          * Initialize the SLI Layer to run with lpfc HBAs.
4810          */
4811         lpfc_sli_setup(phba);
4812         lpfc_sli_queue_setup(phba);
4813
4814         /* Allocate device driver memory */
4815         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4816                 return -ENOMEM;
4817
4818         /*
4819          * Enable sr-iov virtual functions if supported and configured
4820          * through the module parameter.
4821          */
4822         if (phba->cfg_sriov_nr_virtfn > 0) {
4823                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4824                                                  phba->cfg_sriov_nr_virtfn);
4825                 if (rc) {
4826                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4827                                         "2808 Requested number of SR-IOV "
4828                                         "virtual functions (%d) is not "
4829                                         "supported\n",
4830                                         phba->cfg_sriov_nr_virtfn);
4831                         phba->cfg_sriov_nr_virtfn = 0;
4832                 }
4833         }
4834
4835         return 0;
4836 }
4837
4838 /**
4839  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4840  * @phba: pointer to lpfc hba data structure.
4841  *
4842  * This routine is invoked to unset the driver internal resources set up
4843  * specific for supporting the SLI-3 HBA device it attached to.
4844  **/
4845 static void
4846 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4847 {
4848         /* Free device driver memory allocated */
4849         lpfc_mem_free_all(phba);
4850
4851         return;
4852 }
4853
4854 /**
4855  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4856  * @phba: pointer to lpfc hba data structure.
4857  *
4858  * This routine is invoked to set up the driver internal resources specific to
4859  * support the SLI-4 HBA device it attached to.
4860  *
4861  * Return codes
4862  *      0 - successful
4863  *      other values - error
4864  **/
4865 static int
4866 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4867 {
4868         struct lpfc_vector_map_info *cpup;
4869         struct lpfc_sli *psli;
4870         LPFC_MBOXQ_t *mboxq;
4871         int rc, i, hbq_count, max_buf_size;
4872         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4873         struct lpfc_mqe *mqe;
4874         int longs;
4875
4876         /* Before proceed, wait for POST done and device ready */
4877         rc = lpfc_sli4_post_status_check(phba);
4878         if (rc)
4879                 return -ENODEV;
4880
4881         /*
4882          * Initialize timers used by driver
4883          */
4884
4885         /* Heartbeat timer */
4886         init_timer(&phba->hb_tmofunc);
4887         phba->hb_tmofunc.function = lpfc_hb_timeout;
4888         phba->hb_tmofunc.data = (unsigned long)phba;
4889         init_timer(&phba->rrq_tmr);
4890         phba->rrq_tmr.function = lpfc_rrq_timeout;
4891         phba->rrq_tmr.data = (unsigned long)phba;
4892
4893         psli = &phba->sli;
4894         /* MBOX heartbeat timer */
4895         init_timer(&psli->mbox_tmo);
4896         psli->mbox_tmo.function = lpfc_mbox_timeout;
4897         psli->mbox_tmo.data = (unsigned long) phba;
4898         /* Fabric block timer */
4899         init_timer(&phba->fabric_block_timer);
4900         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4901         phba->fabric_block_timer.data = (unsigned long) phba;
4902         /* EA polling mode timer */
4903         init_timer(&phba->eratt_poll);
4904         phba->eratt_poll.function = lpfc_poll_eratt;
4905         phba->eratt_poll.data = (unsigned long) phba;
4906         /* FCF rediscover timer */
4907         init_timer(&phba->fcf.redisc_wait);
4908         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4909         phba->fcf.redisc_wait.data = (unsigned long)phba;
4910
4911         /*
4912          * Control structure for handling external multi-buffer mailbox
4913          * command pass-through.
4914          */
4915         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4916                 sizeof(struct lpfc_mbox_ext_buf_ctx));
4917         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4918
4919         /*
4920          * We need to do a READ_CONFIG mailbox command here before
4921          * calling lpfc_get_cfgparam. For VFs this will report the
4922          * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4923          * All of the resources allocated
4924          * for this Port are tied to these values.
4925          */
4926         /* Get all the module params for configuring this host */
4927         lpfc_get_cfgparam(phba);
4928         phba->max_vpi = LPFC_MAX_VPI;
4929
4930         /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
4931         phba->cfg_fcp_io_channel = phba->cfg_fcp_eq_count;
4932
4933         /* This will be set to correct value after the read_config mbox */
4934         phba->max_vports = 0;
4935
4936         /* Program the default value of vlan_id and fc_map */
4937         phba->valid_vlan = 0;
4938         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4939         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4940         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4941
4942         /*
4943          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
4944          * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
4945          */
4946         if (!phba->sli.ring)
4947                 phba->sli.ring = kzalloc(
4948                         (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
4949                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4950         if (!phba->sli.ring)
4951                 return -ENOMEM;
4952
4953         /*
4954          * It doesn't matter what family our adapter is in, we are
4955          * limited to 2 Pages, 512 SGEs, for our SGL.
4956          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
4957          */
4958         max_buf_size = (2 * SLI4_PAGE_SIZE);
4959         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
4960                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
4961
4962         /*
4963          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4964          * used to create the sg_dma_buf_pool must be dynamically calculated.
4965          */
4966
4967         if (phba->cfg_enable_bg) {
4968                 /*
4969                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
4970                  * the FCP rsp, and a SGE for each. Sice we have no control
4971                  * over how many protection data segments the SCSI Layer
4972                  * will hand us (ie: there could be one for every block
4973                  * in the IO), we just allocate enough SGEs to accomidate
4974                  * our max amount and we need to limit lpfc_sg_seg_cnt to
4975                  * minimize the risk of running out.
4976                  */
4977                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4978                         sizeof(struct fcp_rsp) + max_buf_size;
4979
4980                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
4981                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
4982
4983                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
4984                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
4985         } else {
4986                 /*
4987                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
4988                  * the FCP rsp, a SGE for each, and a SGE for up to
4989                  * cfg_sg_seg_cnt data segments.
4990                  */
4991                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4992                         sizeof(struct fcp_rsp) +
4993                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
4994
4995                 /* Total SGEs for scsi_sg_list */
4996                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
4997                 /*
4998                  * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
4999                  * to post 1 page for the SGL.
5000                  */
5001         }
5002
5003         /* Initialize the host templates with the updated values. */
5004         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5005         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5006
5007         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5008                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5009         else
5010                 phba->cfg_sg_dma_buf_size =
5011                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5012
5013         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5014                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5015                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5016                         phba->cfg_total_seg_cnt);
5017
5018         /* Initialize buffer queue management fields */
5019         hbq_count = lpfc_sli_hbq_count();
5020         for (i = 0; i < hbq_count; ++i)
5021                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5022         INIT_LIST_HEAD(&phba->rb_pend_list);
5023         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5024         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5025
5026         /*
5027          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5028          */
5029         /* Initialize the Abort scsi buffer list used by driver */
5030         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5031         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5032         /* This abort list used by worker thread */
5033         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5034
5035         /*
5036          * Initialize driver internal slow-path work queues
5037          */
5038
5039         /* Driver internel slow-path CQ Event pool */
5040         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5041         /* Response IOCB work queue list */
5042         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5043         /* Asynchronous event CQ Event work queue list */
5044         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5045         /* Fast-path XRI aborted CQ Event work queue list */
5046         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5047         /* Slow-path XRI aborted CQ Event work queue list */
5048         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5049         /* Receive queue CQ Event work queue list */
5050         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5051
5052         /* Initialize extent block lists. */
5053         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5054         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5055         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5056         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5057
5058         /* Initialize the driver internal SLI layer lists. */
5059         lpfc_sli_setup(phba);
5060         lpfc_sli_queue_setup(phba);
5061
5062         /* Allocate device driver memory */
5063         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5064         if (rc)
5065                 return -ENOMEM;
5066
5067         /* IF Type 2 ports get initialized now. */
5068         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5069             LPFC_SLI_INTF_IF_TYPE_2) {
5070                 rc = lpfc_pci_function_reset(phba);
5071                 if (unlikely(rc))
5072                         return -ENODEV;
5073         }
5074
5075         /* Create the bootstrap mailbox command */
5076         rc = lpfc_create_bootstrap_mbox(phba);
5077         if (unlikely(rc))
5078                 goto out_free_mem;
5079
5080         /* Set up the host's endian order with the device. */
5081         rc = lpfc_setup_endian_order(phba);
5082         if (unlikely(rc))
5083                 goto out_free_bsmbx;
5084
5085         /* Set up the hba's configuration parameters. */
5086         rc = lpfc_sli4_read_config(phba);
5087         if (unlikely(rc))
5088                 goto out_free_bsmbx;
5089
5090         /* IF Type 0 ports get initialized now. */
5091         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5092             LPFC_SLI_INTF_IF_TYPE_0) {
5093                 rc = lpfc_pci_function_reset(phba);
5094                 if (unlikely(rc))
5095                         goto out_free_bsmbx;
5096         }
5097
5098         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5099                                                        GFP_KERNEL);
5100         if (!mboxq) {
5101                 rc = -ENOMEM;
5102                 goto out_free_bsmbx;
5103         }
5104
5105         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5106         lpfc_supported_pages(mboxq);
5107         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5108         if (!rc) {
5109                 mqe = &mboxq->u.mqe;
5110                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5111                        LPFC_MAX_SUPPORTED_PAGES);
5112                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5113                         switch (pn_page[i]) {
5114                         case LPFC_SLI4_PARAMETERS:
5115                                 phba->sli4_hba.pc_sli4_params.supported = 1;
5116                                 break;
5117                         default:
5118                                 break;
5119                         }
5120                 }
5121                 /* Read the port's SLI4 Parameters capabilities if supported. */
5122                 if (phba->sli4_hba.pc_sli4_params.supported)
5123                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
5124                 if (rc) {
5125                         mempool_free(mboxq, phba->mbox_mem_pool);
5126                         rc = -EIO;
5127                         goto out_free_bsmbx;
5128                 }
5129         }
5130         /*
5131          * Get sli4 parameters that override parameters from Port capabilities.
5132          * If this call fails, it isn't critical unless the SLI4 parameters come
5133          * back in conflict.
5134          */
5135         rc = lpfc_get_sli4_parameters(phba, mboxq);
5136         if (rc) {
5137                 if (phba->sli4_hba.extents_in_use &&
5138                     phba->sli4_hba.rpi_hdrs_in_use) {
5139                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5140                                 "2999 Unsupported SLI4 Parameters "
5141                                 "Extents and RPI headers enabled.\n");
5142                         goto out_free_bsmbx;
5143                 }
5144         }
5145         mempool_free(mboxq, phba->mbox_mem_pool);
5146         /* Verify all the SLI4 queues */
5147         rc = lpfc_sli4_queue_verify(phba);
5148         if (rc)
5149                 goto out_free_bsmbx;
5150
5151         /* Create driver internal CQE event pool */
5152         rc = lpfc_sli4_cq_event_pool_create(phba);
5153         if (rc)
5154                 goto out_free_bsmbx;
5155
5156         /* Initialize sgl lists per host */
5157         lpfc_init_sgl_list(phba);
5158
5159         /* Allocate and initialize active sgl array */
5160         rc = lpfc_init_active_sgl_array(phba);
5161         if (rc) {
5162                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5163                                 "1430 Failed to initialize sgl list.\n");
5164                 goto out_destroy_cq_event_pool;
5165         }
5166         rc = lpfc_sli4_init_rpi_hdrs(phba);
5167         if (rc) {
5168                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5169                                 "1432 Failed to initialize rpi headers.\n");
5170                 goto out_free_active_sgl;
5171         }
5172
5173         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5174         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5175         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5176                                          GFP_KERNEL);
5177         if (!phba->fcf.fcf_rr_bmask) {
5178                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5179                                 "2759 Failed allocate memory for FCF round "
5180                                 "robin failover bmask\n");
5181                 rc = -ENOMEM;
5182                 goto out_remove_rpi_hdrs;
5183         }
5184
5185         phba->sli4_hba.fcp_eq_hdl =
5186                         kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5187                             phba->cfg_fcp_io_channel), GFP_KERNEL);
5188         if (!phba->sli4_hba.fcp_eq_hdl) {
5189                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5190                                 "2572 Failed allocate memory for "
5191                                 "fast-path per-EQ handle array\n");
5192                 rc = -ENOMEM;
5193                 goto out_free_fcf_rr_bmask;
5194         }
5195
5196         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5197                                       phba->cfg_fcp_io_channel), GFP_KERNEL);
5198         if (!phba->sli4_hba.msix_entries) {
5199                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5200                                 "2573 Failed allocate memory for msi-x "
5201                                 "interrupt vector entries\n");
5202                 rc = -ENOMEM;
5203                 goto out_free_fcp_eq_hdl;
5204         }
5205
5206         phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5207                                          phba->sli4_hba.num_present_cpu),
5208                                          GFP_KERNEL);
5209         if (!phba->sli4_hba.cpu_map) {
5210                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5211                                 "3327 Failed allocate memory for msi-x "
5212                                 "interrupt vector mapping\n");
5213                 rc = -ENOMEM;
5214                 goto out_free_msix;
5215         }
5216         /* Initialize io channels for round robin */
5217         cpup = phba->sli4_hba.cpu_map;
5218         rc = 0;
5219         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5220                 cpup->channel_id = rc;
5221                 rc++;
5222                 if (rc >= phba->cfg_fcp_io_channel)
5223                         rc = 0;
5224         }
5225
5226         /*
5227          * Enable sr-iov virtual functions if supported and configured
5228          * through the module parameter.
5229          */
5230         if (phba->cfg_sriov_nr_virtfn > 0) {
5231                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5232                                                  phba->cfg_sriov_nr_virtfn);
5233                 if (rc) {
5234                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5235                                         "3020 Requested number of SR-IOV "
5236                                         "virtual functions (%d) is not "
5237                                         "supported\n",
5238                                         phba->cfg_sriov_nr_virtfn);
5239                         phba->cfg_sriov_nr_virtfn = 0;
5240                 }
5241         }
5242
5243         return 0;
5244
5245 out_free_msix:
5246         kfree(phba->sli4_hba.msix_entries);
5247 out_free_fcp_eq_hdl:
5248         kfree(phba->sli4_hba.fcp_eq_hdl);
5249 out_free_fcf_rr_bmask:
5250         kfree(phba->fcf.fcf_rr_bmask);
5251 out_remove_rpi_hdrs:
5252         lpfc_sli4_remove_rpi_hdrs(phba);
5253 out_free_active_sgl:
5254         lpfc_free_active_sgl(phba);
5255 out_destroy_cq_event_pool:
5256         lpfc_sli4_cq_event_pool_destroy(phba);
5257 out_free_bsmbx:
5258         lpfc_destroy_bootstrap_mbox(phba);
5259 out_free_mem:
5260         lpfc_mem_free(phba);
5261         return rc;
5262 }
5263
5264 /**
5265  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5266  * @phba: pointer to lpfc hba data structure.
5267  *
5268  * This routine is invoked to unset the driver internal resources set up
5269  * specific for supporting the SLI-4 HBA device it attached to.
5270  **/
5271 static void
5272 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5273 {
5274         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5275
5276         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5277         kfree(phba->sli4_hba.cpu_map);
5278         phba->sli4_hba.num_present_cpu = 0;
5279         phba->sli4_hba.num_online_cpu = 0;
5280
5281         /* Free memory allocated for msi-x interrupt vector entries */
5282         kfree(phba->sli4_hba.msix_entries);
5283
5284         /* Free memory allocated for fast-path work queue handles */
5285         kfree(phba->sli4_hba.fcp_eq_hdl);
5286
5287         /* Free the allocated rpi headers. */
5288         lpfc_sli4_remove_rpi_hdrs(phba);
5289         lpfc_sli4_remove_rpis(phba);
5290
5291         /* Free eligible FCF index bmask */
5292         kfree(phba->fcf.fcf_rr_bmask);
5293
5294         /* Free the ELS sgl list */
5295         lpfc_free_active_sgl(phba);
5296         lpfc_free_els_sgl_list(phba);
5297
5298         /* Free the completion queue EQ event pool */
5299         lpfc_sli4_cq_event_release_all(phba);
5300         lpfc_sli4_cq_event_pool_destroy(phba);
5301
5302         /* Release resource identifiers. */
5303         lpfc_sli4_dealloc_resource_identifiers(phba);
5304
5305         /* Free the bsmbx region. */
5306         lpfc_destroy_bootstrap_mbox(phba);
5307
5308         /* Free the SLI Layer memory with SLI4 HBAs */
5309         lpfc_mem_free_all(phba);
5310
5311         /* Free the current connect table */
5312         list_for_each_entry_safe(conn_entry, next_conn_entry,
5313                 &phba->fcf_conn_rec_list, list) {
5314                 list_del_init(&conn_entry->list);
5315                 kfree(conn_entry);
5316         }
5317
5318         return;
5319 }
5320
5321 /**
5322  * lpfc_init_api_table_setup - Set up init api function jump table
5323  * @phba: The hba struct for which this call is being executed.
5324  * @dev_grp: The HBA PCI-Device group number.
5325  *
5326  * This routine sets up the device INIT interface API function jump table
5327  * in @phba struct.
5328  *
5329  * Returns: 0 - success, -ENODEV - failure.
5330  **/
5331 int
5332 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5333 {
5334         phba->lpfc_hba_init_link = lpfc_hba_init_link;
5335         phba->lpfc_hba_down_link = lpfc_hba_down_link;
5336         phba->lpfc_selective_reset = lpfc_selective_reset;
5337         switch (dev_grp) {
5338         case LPFC_PCI_DEV_LP:
5339                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5340                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5341                 phba->lpfc_stop_port = lpfc_stop_port_s3;
5342                 break;
5343         case LPFC_PCI_DEV_OC:
5344                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5345                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5346                 phba->lpfc_stop_port = lpfc_stop_port_s4;
5347                 break;
5348         default:
5349                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5350                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
5351                                 dev_grp);
5352                 return -ENODEV;
5353                 break;
5354         }
5355         return 0;
5356 }
5357
5358 /**
5359  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5360  * @phba: pointer to lpfc hba data structure.
5361  *
5362  * This routine is invoked to set up the driver internal resources before the
5363  * device specific resource setup to support the HBA device it attached to.
5364  *
5365  * Return codes
5366  *      0 - successful
5367  *      other values - error
5368  **/
5369 static int
5370 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5371 {
5372         /*
5373          * Driver resources common to all SLI revisions
5374          */
5375         atomic_set(&phba->fast_event_count, 0);
5376         spin_lock_init(&phba->hbalock);
5377
5378         /* Initialize ndlp management spinlock */
5379         spin_lock_init(&phba->ndlp_lock);
5380
5381         INIT_LIST_HEAD(&phba->port_list);
5382         INIT_LIST_HEAD(&phba->work_list);
5383         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5384
5385         /* Initialize the wait queue head for the kernel thread */
5386         init_waitqueue_head(&phba->work_waitq);
5387
5388         /* Initialize the scsi buffer list used by driver for scsi IO */
5389         spin_lock_init(&phba->scsi_buf_list_get_lock);
5390         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5391         spin_lock_init(&phba->scsi_buf_list_put_lock);
5392         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5393
5394         /* Initialize the fabric iocb list */
5395         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5396
5397         /* Initialize list to save ELS buffers */
5398         INIT_LIST_HEAD(&phba->elsbuf);
5399
5400         /* Initialize FCF connection rec list */
5401         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5402
5403         return 0;
5404 }
5405
5406 /**
5407  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5408  * @phba: pointer to lpfc hba data structure.
5409  *
5410  * This routine is invoked to set up the driver internal resources after the
5411  * device specific resource setup to support the HBA device it attached to.
5412  *
5413  * Return codes
5414  *      0 - successful
5415  *      other values - error
5416  **/
5417 static int
5418 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5419 {
5420         int error;
5421
5422         /* Startup the kernel thread for this host adapter. */
5423         phba->worker_thread = kthread_run(lpfc_do_work, phba,
5424                                           "lpfc_worker_%d", phba->brd_no);
5425         if (IS_ERR(phba->worker_thread)) {
5426                 error = PTR_ERR(phba->worker_thread);
5427                 return error;
5428         }
5429
5430         return 0;
5431 }
5432
5433 /**
5434  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5435  * @phba: pointer to lpfc hba data structure.
5436  *
5437  * This routine is invoked to unset the driver internal resources set up after
5438  * the device specific resource setup for supporting the HBA device it
5439  * attached to.
5440  **/
5441 static void
5442 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5443 {
5444         /* Stop kernel worker thread */
5445         kthread_stop(phba->worker_thread);
5446 }
5447
5448 /**
5449  * lpfc_free_iocb_list - Free iocb list.
5450  * @phba: pointer to lpfc hba data structure.
5451  *
5452  * This routine is invoked to free the driver's IOCB list and memory.
5453  **/
5454 static void
5455 lpfc_free_iocb_list(struct lpfc_hba *phba)
5456 {
5457         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5458
5459         spin_lock_irq(&phba->hbalock);
5460         list_for_each_entry_safe(iocbq_entry, iocbq_next,
5461                                  &phba->lpfc_iocb_list, list) {
5462                 list_del(&iocbq_entry->list);
5463                 kfree(iocbq_entry);
5464                 phba->total_iocbq_bufs--;
5465         }
5466         spin_unlock_irq(&phba->hbalock);
5467
5468         return;
5469 }
5470
5471 /**
5472  * lpfc_init_iocb_list - Allocate and initialize iocb list.
5473  * @phba: pointer to lpfc hba data structure.
5474  *
5475  * This routine is invoked to allocate and initizlize the driver's IOCB
5476  * list and set up the IOCB tag array accordingly.
5477  *
5478  * Return codes
5479  *      0 - successful
5480  *      other values - error
5481  **/
5482 static int
5483 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5484 {
5485         struct lpfc_iocbq *iocbq_entry = NULL;
5486         uint16_t iotag;
5487         int i;
5488
5489         /* Initialize and populate the iocb list per host.  */
5490         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5491         for (i = 0; i < iocb_count; i++) {
5492                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5493                 if (iocbq_entry == NULL) {
5494                         printk(KERN_ERR "%s: only allocated %d iocbs of "
5495                                 "expected %d count. Unloading driver.\n",
5496                                 __func__, i, LPFC_IOCB_LIST_CNT);
5497                         goto out_free_iocbq;
5498                 }
5499
5500                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5501                 if (iotag == 0) {
5502                         kfree(iocbq_entry);
5503                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
5504                                 "Unloading driver.\n", __func__);
5505                         goto out_free_iocbq;
5506                 }
5507                 iocbq_entry->sli4_lxritag = NO_XRI;
5508                 iocbq_entry->sli4_xritag = NO_XRI;
5509
5510                 spin_lock_irq(&phba->hbalock);
5511                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5512                 phba->total_iocbq_bufs++;
5513                 spin_unlock_irq(&phba->hbalock);
5514         }
5515
5516         return 0;
5517
5518 out_free_iocbq:
5519         lpfc_free_iocb_list(phba);
5520
5521         return -ENOMEM;
5522 }
5523
5524 /**
5525  * lpfc_free_sgl_list - Free a given sgl list.
5526  * @phba: pointer to lpfc hba data structure.
5527  * @sglq_list: pointer to the head of sgl list.
5528  *
5529  * This routine is invoked to free a give sgl list and memory.
5530  **/
5531 void
5532 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5533 {
5534         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5535
5536         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5537                 list_del(&sglq_entry->list);
5538                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5539                 kfree(sglq_entry);
5540         }
5541 }
5542
5543 /**
5544  * lpfc_free_els_sgl_list - Free els sgl list.
5545  * @phba: pointer to lpfc hba data structure.
5546  *
5547  * This routine is invoked to free the driver's els sgl list and memory.
5548  **/
5549 static void
5550 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5551 {
5552         LIST_HEAD(sglq_list);
5553
5554         /* Retrieve all els sgls from driver list */
5555         spin_lock_irq(&phba->hbalock);
5556         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5557         spin_unlock_irq(&phba->hbalock);
5558
5559         /* Now free the sgl list */
5560         lpfc_free_sgl_list(phba, &sglq_list);
5561 }
5562
5563 /**
5564  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5565  * @phba: pointer to lpfc hba data structure.
5566  *
5567  * This routine is invoked to allocate the driver's active sgl memory.
5568  * This array will hold the sglq_entry's for active IOs.
5569  **/
5570 static int
5571 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5572 {
5573         int size;
5574         size = sizeof(struct lpfc_sglq *);
5575         size *= phba->sli4_hba.max_cfg_param.max_xri;
5576
5577         phba->sli4_hba.lpfc_sglq_active_list =
5578                 kzalloc(size, GFP_KERNEL);
5579         if (!phba->sli4_hba.lpfc_sglq_active_list)
5580                 return -ENOMEM;
5581         return 0;
5582 }
5583
5584 /**
5585  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5586  * @phba: pointer to lpfc hba data structure.
5587  *
5588  * This routine is invoked to walk through the array of active sglq entries
5589  * and free all of the resources.
5590  * This is just a place holder for now.
5591  **/
5592 static void
5593 lpfc_free_active_sgl(struct lpfc_hba *phba)
5594 {
5595         kfree(phba->sli4_hba.lpfc_sglq_active_list);
5596 }
5597
5598 /**
5599  * lpfc_init_sgl_list - Allocate and initialize sgl list.
5600  * @phba: pointer to lpfc hba data structure.
5601  *
5602  * This routine is invoked to allocate and initizlize the driver's sgl
5603  * list and set up the sgl xritag tag array accordingly.
5604  *
5605  **/
5606 static void
5607 lpfc_init_sgl_list(struct lpfc_hba *phba)
5608 {
5609         /* Initialize and populate the sglq list per host/VF. */
5610         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5611         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5612
5613         /* els xri-sgl book keeping */
5614         phba->sli4_hba.els_xri_cnt = 0;
5615
5616         /* scsi xri-buffer book keeping */
5617         phba->sli4_hba.scsi_xri_cnt = 0;
5618 }
5619
5620 /**
5621  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5622  * @phba: pointer to lpfc hba data structure.
5623  *
5624  * This routine is invoked to post rpi header templates to the
5625  * port for those SLI4 ports that do not support extents.  This routine
5626  * posts a PAGE_SIZE memory region to the port to hold up to
5627  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
5628  * and should be called only when interrupts are disabled.
5629  *
5630  * Return codes
5631  *      0 - successful
5632  *      -ERROR - otherwise.
5633  **/
5634 int
5635 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5636 {
5637         int rc = 0;
5638         struct lpfc_rpi_hdr *rpi_hdr;
5639
5640         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5641         if (!phba->sli4_hba.rpi_hdrs_in_use)
5642                 return rc;
5643         if (phba->sli4_hba.extents_in_use)
5644                 return -EIO;
5645
5646         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5647         if (!rpi_hdr) {
5648                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5649                                 "0391 Error during rpi post operation\n");
5650                 lpfc_sli4_remove_rpis(phba);
5651                 rc = -ENODEV;
5652         }
5653
5654         return rc;
5655 }
5656
5657 /**
5658  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5659  * @phba: pointer to lpfc hba data structure.
5660  *
5661  * This routine is invoked to allocate a single 4KB memory region to
5662  * support rpis and stores them in the phba.  This single region
5663  * provides support for up to 64 rpis.  The region is used globally
5664  * by the device.
5665  *
5666  * Returns:
5667  *   A valid rpi hdr on success.
5668  *   A NULL pointer on any failure.
5669  **/
5670 struct lpfc_rpi_hdr *
5671 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5672 {
5673         uint16_t rpi_limit, curr_rpi_range;
5674         struct lpfc_dmabuf *dmabuf;
5675         struct lpfc_rpi_hdr *rpi_hdr;
5676         uint32_t rpi_count;
5677
5678         /*
5679          * If the SLI4 port supports extents, posting the rpi header isn't
5680          * required.  Set the expected maximum count and let the actual value
5681          * get set when extents are fully allocated.
5682          */
5683         if (!phba->sli4_hba.rpi_hdrs_in_use)
5684                 return NULL;
5685         if (phba->sli4_hba.extents_in_use)
5686                 return NULL;
5687
5688         /* The limit on the logical index is just the max_rpi count. */
5689         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5690         phba->sli4_hba.max_cfg_param.max_rpi - 1;
5691
5692         spin_lock_irq(&phba->hbalock);
5693         /*
5694          * Establish the starting RPI in this header block.  The starting
5695          * rpi is normalized to a zero base because the physical rpi is
5696          * port based.
5697          */
5698         curr_rpi_range = phba->sli4_hba.next_rpi;
5699         spin_unlock_irq(&phba->hbalock);
5700
5701         /*
5702          * The port has a limited number of rpis. The increment here
5703          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5704          * and to allow the full max_rpi range per port.
5705          */
5706         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5707                 rpi_count = rpi_limit - curr_rpi_range;
5708         else
5709                 rpi_count = LPFC_RPI_HDR_COUNT;
5710
5711         if (!rpi_count)
5712                 return NULL;
5713         /*
5714          * First allocate the protocol header region for the port.  The
5715          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5716          */
5717         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5718         if (!dmabuf)
5719                 return NULL;
5720
5721         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5722                                           LPFC_HDR_TEMPLATE_SIZE,
5723                                           &dmabuf->phys,
5724                                           GFP_KERNEL);
5725         if (!dmabuf->virt) {
5726                 rpi_hdr = NULL;
5727                 goto err_free_dmabuf;
5728         }
5729
5730         memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5731         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5732                 rpi_hdr = NULL;
5733                 goto err_free_coherent;
5734         }
5735
5736         /* Save the rpi header data for cleanup later. */
5737         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5738         if (!rpi_hdr)
5739                 goto err_free_coherent;
5740
5741         rpi_hdr->dmabuf = dmabuf;
5742         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5743         rpi_hdr->page_count = 1;
5744         spin_lock_irq(&phba->hbalock);
5745
5746         /* The rpi_hdr stores the logical index only. */
5747         rpi_hdr->start_rpi = curr_rpi_range;
5748         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5749
5750         /*
5751          * The next_rpi stores the next logical module-64 rpi value used
5752          * to post physical rpis in subsequent rpi postings.
5753          */
5754         phba->sli4_hba.next_rpi += rpi_count;
5755         spin_unlock_irq(&phba->hbalock);
5756         return rpi_hdr;
5757
5758  err_free_coherent:
5759         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5760                           dmabuf->virt, dmabuf->phys);
5761  err_free_dmabuf:
5762         kfree(dmabuf);
5763         return NULL;
5764 }
5765
5766 /**
5767  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5768  * @phba: pointer to lpfc hba data structure.
5769  *
5770  * This routine is invoked to remove all memory resources allocated
5771  * to support rpis for SLI4 ports not supporting extents. This routine
5772  * presumes the caller has released all rpis consumed by fabric or port
5773  * logins and is prepared to have the header pages removed.
5774  **/
5775 void
5776 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5777 {
5778         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5779
5780         if (!phba->sli4_hba.rpi_hdrs_in_use)
5781                 goto exit;
5782
5783         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5784                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5785                 list_del(&rpi_hdr->list);
5786                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5787                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5788                 kfree(rpi_hdr->dmabuf);
5789                 kfree(rpi_hdr);
5790         }
5791  exit:
5792         /* There are no rpis available to the port now. */
5793         phba->sli4_hba.next_rpi = 0;
5794 }
5795
5796 /**
5797  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5798  * @pdev: pointer to pci device data structure.
5799  *
5800  * This routine is invoked to allocate the driver hba data structure for an
5801  * HBA device. If the allocation is successful, the phba reference to the
5802  * PCI device data structure is set.
5803  *
5804  * Return codes
5805  *      pointer to @phba - successful
5806  *      NULL - error
5807  **/
5808 static struct lpfc_hba *
5809 lpfc_hba_alloc(struct pci_dev *pdev)
5810 {
5811         struct lpfc_hba *phba;
5812
5813         /* Allocate memory for HBA structure */
5814         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5815         if (!phba) {
5816                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5817                 return NULL;
5818         }
5819
5820         /* Set reference to PCI device in HBA structure */
5821         phba->pcidev = pdev;
5822
5823         /* Assign an unused board number */
5824         phba->brd_no = lpfc_get_instance();
5825         if (phba->brd_no < 0) {
5826                 kfree(phba);
5827                 return NULL;
5828         }
5829
5830         spin_lock_init(&phba->ct_ev_lock);
5831         INIT_LIST_HEAD(&phba->ct_ev_waiters);
5832
5833         return phba;
5834 }
5835
5836 /**
5837  * lpfc_hba_free - Free driver hba data structure with a device.
5838  * @phba: pointer to lpfc hba data structure.
5839  *
5840  * This routine is invoked to free the driver hba data structure with an
5841  * HBA device.
5842  **/
5843 static void
5844 lpfc_hba_free(struct lpfc_hba *phba)
5845 {
5846         /* Release the driver assigned board number */
5847         idr_remove(&lpfc_hba_index, phba->brd_no);
5848
5849         /* Free memory allocated with sli rings */
5850         kfree(phba->sli.ring);
5851         phba->sli.ring = NULL;
5852
5853         kfree(phba);
5854         return;
5855 }
5856
5857 /**
5858  * lpfc_create_shost - Create hba physical port with associated scsi host.
5859  * @phba: pointer to lpfc hba data structure.
5860  *
5861  * This routine is invoked to create HBA physical port and associate a SCSI
5862  * host with it.
5863  *
5864  * Return codes
5865  *      0 - successful
5866  *      other values - error
5867  **/
5868 static int
5869 lpfc_create_shost(struct lpfc_hba *phba)
5870 {
5871         struct lpfc_vport *vport;
5872         struct Scsi_Host  *shost;
5873
5874         /* Initialize HBA FC structure */
5875         phba->fc_edtov = FF_DEF_EDTOV;
5876         phba->fc_ratov = FF_DEF_RATOV;
5877         phba->fc_altov = FF_DEF_ALTOV;
5878         phba->fc_arbtov = FF_DEF_ARBTOV;
5879
5880         atomic_set(&phba->sdev_cnt, 0);
5881         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5882         if (!vport)
5883                 return -ENODEV;
5884
5885         shost = lpfc_shost_from_vport(vport);
5886         phba->pport = vport;
5887         lpfc_debugfs_initialize(vport);
5888         /* Put reference to SCSI host to driver's device private data */
5889         pci_set_drvdata(phba->pcidev, shost);
5890
5891         return 0;
5892 }
5893
5894 /**
5895  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5896  * @phba: pointer to lpfc hba data structure.
5897  *
5898  * This routine is invoked to destroy HBA physical port and the associated
5899  * SCSI host.
5900  **/
5901 static void
5902 lpfc_destroy_shost(struct lpfc_hba *phba)
5903 {
5904         struct lpfc_vport *vport = phba->pport;
5905
5906         /* Destroy physical port that associated with the SCSI host */
5907         destroy_port(vport);
5908
5909         return;
5910 }
5911
5912 /**
5913  * lpfc_setup_bg - Setup Block guard structures and debug areas.
5914  * @phba: pointer to lpfc hba data structure.
5915  * @shost: the shost to be used to detect Block guard settings.
5916  *
5917  * This routine sets up the local Block guard protocol settings for @shost.
5918  * This routine also allocates memory for debugging bg buffers.
5919  **/
5920 static void
5921 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5922 {
5923         uint32_t old_mask;
5924         uint32_t old_guard;
5925
5926         int pagecnt = 10;
5927         if (lpfc_prot_mask && lpfc_prot_guard) {
5928                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5929                                 "1478 Registering BlockGuard with the "
5930                                 "SCSI layer\n");
5931
5932                 old_mask = lpfc_prot_mask;
5933                 old_guard = lpfc_prot_guard;
5934
5935                 /* Only allow supported values */
5936                 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
5937                         SHOST_DIX_TYPE0_PROTECTION |
5938                         SHOST_DIX_TYPE1_PROTECTION);
5939                 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
5940
5941                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
5942                 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
5943                         lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
5944
5945                 if (lpfc_prot_mask && lpfc_prot_guard) {
5946                         if ((old_mask != lpfc_prot_mask) ||
5947                                 (old_guard != lpfc_prot_guard))
5948                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5949                                         "1475 Registering BlockGuard with the "
5950                                         "SCSI layer: mask %d  guard %d\n",
5951                                         lpfc_prot_mask, lpfc_prot_guard);
5952
5953                         scsi_host_set_prot(shost, lpfc_prot_mask);
5954                         scsi_host_set_guard(shost, lpfc_prot_guard);
5955                 } else
5956                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5957                                 "1479 Not Registering BlockGuard with the SCSI "
5958                                 "layer, Bad protection parameters: %d %d\n",
5959                                 old_mask, old_guard);
5960         }
5961
5962         if (!_dump_buf_data) {
5963                 while (pagecnt) {
5964                         spin_lock_init(&_dump_buf_lock);
5965                         _dump_buf_data =
5966                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5967                         if (_dump_buf_data) {
5968                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5969                                         "9043 BLKGRD: allocated %d pages for "
5970                                        "_dump_buf_data at 0x%p\n",
5971                                        (1 << pagecnt), _dump_buf_data);
5972                                 _dump_buf_data_order = pagecnt;
5973                                 memset(_dump_buf_data, 0,
5974                                        ((1 << PAGE_SHIFT) << pagecnt));
5975                                 break;
5976                         } else
5977                                 --pagecnt;
5978                 }
5979                 if (!_dump_buf_data_order)
5980                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5981                                 "9044 BLKGRD: ERROR unable to allocate "
5982                                "memory for hexdump\n");
5983         } else
5984                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5985                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5986                        "\n", _dump_buf_data);
5987         if (!_dump_buf_dif) {
5988                 while (pagecnt) {
5989                         _dump_buf_dif =
5990                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5991                         if (_dump_buf_dif) {
5992                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5993                                         "9046 BLKGRD: allocated %d pages for "
5994                                        "_dump_buf_dif at 0x%p\n",
5995                                        (1 << pagecnt), _dump_buf_dif);
5996                                 _dump_buf_dif_order = pagecnt;
5997                                 memset(_dump_buf_dif, 0,
5998                                        ((1 << PAGE_SHIFT) << pagecnt));
5999                                 break;
6000                         } else
6001                                 --pagecnt;
6002                 }
6003                 if (!_dump_buf_dif_order)
6004                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6005                         "9047 BLKGRD: ERROR unable to allocate "
6006                                "memory for hexdump\n");
6007         } else
6008                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6009                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6010                        _dump_buf_dif);
6011 }
6012
6013 /**
6014  * lpfc_post_init_setup - Perform necessary device post initialization setup.
6015  * @phba: pointer to lpfc hba data structure.
6016  *
6017  * This routine is invoked to perform all the necessary post initialization
6018  * setup for the device.
6019  **/
6020 static void
6021 lpfc_post_init_setup(struct lpfc_hba *phba)
6022 {
6023         struct Scsi_Host  *shost;
6024         struct lpfc_adapter_event_header adapter_event;
6025
6026         /* Get the default values for Model Name and Description */
6027         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6028
6029         /*
6030          * hba setup may have changed the hba_queue_depth so we need to
6031          * adjust the value of can_queue.
6032          */
6033         shost = pci_get_drvdata(phba->pcidev);
6034         shost->can_queue = phba->cfg_hba_queue_depth - 10;
6035         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6036                 lpfc_setup_bg(phba, shost);
6037
6038         lpfc_host_attrib_init(shost);
6039
6040         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6041                 spin_lock_irq(shost->host_lock);
6042                 lpfc_poll_start_timer(phba);
6043                 spin_unlock_irq(shost->host_lock);
6044         }
6045
6046         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6047                         "0428 Perform SCSI scan\n");
6048         /* Send board arrival event to upper layer */
6049         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6050         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6051         fc_host_post_vendor_event(shost, fc_get_event_number(),
6052                                   sizeof(adapter_event),
6053                                   (char *) &adapter_event,
6054                                   LPFC_NL_VENDOR_ID);
6055         return;
6056 }
6057
6058 /**
6059  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6060  * @phba: pointer to lpfc hba data structure.
6061  *
6062  * This routine is invoked to set up the PCI device memory space for device
6063  * with SLI-3 interface spec.
6064  *
6065  * Return codes
6066  *      0 - successful
6067  *      other values - error
6068  **/
6069 static int
6070 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6071 {
6072         struct pci_dev *pdev;
6073         unsigned long bar0map_len, bar2map_len;
6074         int i, hbq_count;
6075         void *ptr;
6076         int error = -ENODEV;
6077
6078         /* Obtain PCI device reference */
6079         if (!phba->pcidev)
6080                 return error;
6081         else
6082                 pdev = phba->pcidev;
6083
6084         /* Set the device DMA mask size */
6085         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6086          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6087                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6088                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6089                         return error;
6090                 }
6091         }
6092
6093         /* Get the bus address of Bar0 and Bar2 and the number of bytes
6094          * required by each mapping.
6095          */
6096         phba->pci_bar0_map = pci_resource_start(pdev, 0);
6097         bar0map_len = pci_resource_len(pdev, 0);
6098
6099         phba->pci_bar2_map = pci_resource_start(pdev, 2);
6100         bar2map_len = pci_resource_len(pdev, 2);
6101
6102         /* Map HBA SLIM to a kernel virtual address. */
6103         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6104         if (!phba->slim_memmap_p) {
6105                 dev_printk(KERN_ERR, &pdev->dev,
6106                            "ioremap failed for SLIM memory.\n");
6107                 goto out;
6108         }
6109
6110         /* Map HBA Control Registers to a kernel virtual address. */
6111         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6112         if (!phba->ctrl_regs_memmap_p) {
6113                 dev_printk(KERN_ERR, &pdev->dev,
6114                            "ioremap failed for HBA control registers.\n");
6115                 goto out_iounmap_slim;
6116         }
6117
6118         /* Allocate memory for SLI-2 structures */
6119         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
6120                                                SLI2_SLIM_SIZE,
6121                                                &phba->slim2p.phys,
6122                                                GFP_KERNEL);
6123         if (!phba->slim2p.virt)
6124                 goto out_iounmap;
6125
6126         memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
6127         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6128         phba->mbox_ext = (phba->slim2p.virt +
6129                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6130         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6131         phba->IOCBs = (phba->slim2p.virt +
6132                        offsetof(struct lpfc_sli2_slim, IOCBs));
6133
6134         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6135                                                  lpfc_sli_hbq_size(),
6136                                                  &phba->hbqslimp.phys,
6137                                                  GFP_KERNEL);
6138         if (!phba->hbqslimp.virt)
6139                 goto out_free_slim;
6140
6141         hbq_count = lpfc_sli_hbq_count();
6142         ptr = phba->hbqslimp.virt;
6143         for (i = 0; i < hbq_count; ++i) {
6144                 phba->hbqs[i].hbq_virt = ptr;
6145                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6146                 ptr += (lpfc_hbq_defs[i]->entry_count *
6147                         sizeof(struct lpfc_hbq_entry));
6148         }
6149         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6150         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6151
6152         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6153
6154         INIT_LIST_HEAD(&phba->rb_pend_list);
6155
6156         phba->MBslimaddr = phba->slim_memmap_p;
6157         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6158         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6159         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6160         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6161
6162         return 0;
6163
6164 out_free_slim:
6165         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6166                           phba->slim2p.virt, phba->slim2p.phys);
6167 out_iounmap:
6168         iounmap(phba->ctrl_regs_memmap_p);
6169 out_iounmap_slim:
6170         iounmap(phba->slim_memmap_p);
6171 out:
6172         return error;
6173 }
6174
6175 /**
6176  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6177  * @phba: pointer to lpfc hba data structure.
6178  *
6179  * This routine is invoked to unset the PCI device memory space for device
6180  * with SLI-3 interface spec.
6181  **/
6182 static void
6183 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6184 {
6185         struct pci_dev *pdev;
6186
6187         /* Obtain PCI device reference */
6188         if (!phba->pcidev)
6189                 return;
6190         else
6191                 pdev = phba->pcidev;
6192
6193         /* Free coherent DMA memory allocated */
6194         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6195                           phba->hbqslimp.virt, phba->hbqslimp.phys);
6196         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6197                           phba->slim2p.virt, phba->slim2p.phys);
6198
6199         /* I/O memory unmap */
6200         iounmap(phba->ctrl_regs_memmap_p);
6201         iounmap(phba->slim_memmap_p);
6202
6203         return;
6204 }
6205
6206 /**
6207  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6208  * @phba: pointer to lpfc hba data structure.
6209  *
6210  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6211  * done and check status.
6212  *
6213  * Return 0 if successful, otherwise -ENODEV.
6214  **/
6215 int
6216 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6217 {
6218         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6219         struct lpfc_register reg_data;
6220         int i, port_error = 0;
6221         uint32_t if_type;
6222
6223         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6224         memset(&reg_data, 0, sizeof(reg_data));
6225         if (!phba->sli4_hba.PSMPHRregaddr)
6226                 return -ENODEV;
6227
6228         /* Wait up to 30 seconds for the SLI Port POST done and ready */
6229         for (i = 0; i < 3000; i++) {
6230                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6231                         &portsmphr_reg.word0) ||
6232                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6233                         /* Port has a fatal POST error, break out */
6234                         port_error = -ENODEV;
6235                         break;
6236                 }
6237                 if (LPFC_POST_STAGE_PORT_READY ==
6238                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6239                         break;
6240                 msleep(10);
6241         }
6242
6243         /*
6244          * If there was a port error during POST, then don't proceed with
6245          * other register reads as the data may not be valid.  Just exit.
6246          */
6247         if (port_error) {
6248                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6249                         "1408 Port Failed POST - portsmphr=0x%x, "
6250                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6251                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6252                         portsmphr_reg.word0,
6253                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6254                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6255                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6256                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6257                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6258                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6259                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6260                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6261         } else {
6262                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6263                                 "2534 Device Info: SLIFamily=0x%x, "
6264                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6265                                 "SLIHint_2=0x%x, FT=0x%x\n",
6266                                 bf_get(lpfc_sli_intf_sli_family,
6267                                        &phba->sli4_hba.sli_intf),
6268                                 bf_get(lpfc_sli_intf_slirev,
6269                                        &phba->sli4_hba.sli_intf),
6270                                 bf_get(lpfc_sli_intf_if_type,
6271                                        &phba->sli4_hba.sli_intf),
6272                                 bf_get(lpfc_sli_intf_sli_hint1,
6273                                        &phba->sli4_hba.sli_intf),
6274                                 bf_get(lpfc_sli_intf_sli_hint2,
6275                                        &phba->sli4_hba.sli_intf),
6276                                 bf_get(lpfc_sli_intf_func_type,
6277                                        &phba->sli4_hba.sli_intf));
6278                 /*
6279                  * Check for other Port errors during the initialization
6280                  * process.  Fail the load if the port did not come up
6281                  * correctly.
6282                  */
6283                 if_type = bf_get(lpfc_sli_intf_if_type,
6284                                  &phba->sli4_hba.sli_intf);
6285                 switch (if_type) {
6286                 case LPFC_SLI_INTF_IF_TYPE_0:
6287                         phba->sli4_hba.ue_mask_lo =
6288                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6289                         phba->sli4_hba.ue_mask_hi =
6290                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6291                         uerrlo_reg.word0 =
6292                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6293                         uerrhi_reg.word0 =
6294                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6295                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6296                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6297                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6298                                                 "1422 Unrecoverable Error "
6299                                                 "Detected during POST "
6300                                                 "uerr_lo_reg=0x%x, "
6301                                                 "uerr_hi_reg=0x%x, "
6302                                                 "ue_mask_lo_reg=0x%x, "
6303                                                 "ue_mask_hi_reg=0x%x\n",
6304                                                 uerrlo_reg.word0,
6305                                                 uerrhi_reg.word0,
6306                                                 phba->sli4_hba.ue_mask_lo,
6307                                                 phba->sli4_hba.ue_mask_hi);
6308                                 port_error = -ENODEV;
6309                         }
6310                         break;
6311                 case LPFC_SLI_INTF_IF_TYPE_2:
6312                         /* Final checks.  The port status should be clean. */
6313                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6314                                 &reg_data.word0) ||
6315                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6316                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
6317                                 phba->work_status[0] =
6318                                         readl(phba->sli4_hba.u.if_type2.
6319                                               ERR1regaddr);
6320                                 phba->work_status[1] =
6321                                         readl(phba->sli4_hba.u.if_type2.
6322                                               ERR2regaddr);
6323                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6324                                         "2888 Unrecoverable port error "
6325                                         "following POST: port status reg "
6326                                         "0x%x, port_smphr reg 0x%x, "
6327                                         "error 1=0x%x, error 2=0x%x\n",
6328                                         reg_data.word0,
6329                                         portsmphr_reg.word0,
6330                                         phba->work_status[0],
6331                                         phba->work_status[1]);
6332                                 port_error = -ENODEV;
6333                         }
6334                         break;
6335                 case LPFC_SLI_INTF_IF_TYPE_1:
6336                 default:
6337                         break;
6338                 }
6339         }
6340         return port_error;
6341 }
6342
6343 /**
6344  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6345  * @phba: pointer to lpfc hba data structure.
6346  * @if_type:  The SLI4 interface type getting configured.
6347  *
6348  * This routine is invoked to set up SLI4 BAR0 PCI config space register
6349  * memory map.
6350  **/
6351 static void
6352 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6353 {
6354         switch (if_type) {
6355         case LPFC_SLI_INTF_IF_TYPE_0:
6356                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6357                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6358                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6359                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6360                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6361                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6362                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6363                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6364                 phba->sli4_hba.SLIINTFregaddr =
6365                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6366                 break;
6367         case LPFC_SLI_INTF_IF_TYPE_2:
6368                 phba->sli4_hba.u.if_type2.ERR1regaddr =
6369                         phba->sli4_hba.conf_regs_memmap_p +
6370                                                 LPFC_CTL_PORT_ER1_OFFSET;
6371                 phba->sli4_hba.u.if_type2.ERR2regaddr =
6372                         phba->sli4_hba.conf_regs_memmap_p +
6373                                                 LPFC_CTL_PORT_ER2_OFFSET;
6374                 phba->sli4_hba.u.if_type2.CTRLregaddr =
6375                         phba->sli4_hba.conf_regs_memmap_p +
6376                                                 LPFC_CTL_PORT_CTL_OFFSET;
6377                 phba->sli4_hba.u.if_type2.STATUSregaddr =
6378                         phba->sli4_hba.conf_regs_memmap_p +
6379                                                 LPFC_CTL_PORT_STA_OFFSET;
6380                 phba->sli4_hba.SLIINTFregaddr =
6381                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6382                 phba->sli4_hba.PSMPHRregaddr =
6383                         phba->sli4_hba.conf_regs_memmap_p +
6384                                                 LPFC_CTL_PORT_SEM_OFFSET;
6385                 phba->sli4_hba.RQDBregaddr =
6386                         phba->sli4_hba.conf_regs_memmap_p +
6387                                                 LPFC_ULP0_RQ_DOORBELL;
6388                 phba->sli4_hba.WQDBregaddr =
6389                         phba->sli4_hba.conf_regs_memmap_p +
6390                                                 LPFC_ULP0_WQ_DOORBELL;
6391                 phba->sli4_hba.EQCQDBregaddr =
6392                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6393                 phba->sli4_hba.MQDBregaddr =
6394                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6395                 phba->sli4_hba.BMBXregaddr =
6396                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6397                 break;
6398         case LPFC_SLI_INTF_IF_TYPE_1:
6399         default:
6400                 dev_printk(KERN_ERR, &phba->pcidev->dev,
6401                            "FATAL - unsupported SLI4 interface type - %d\n",
6402                            if_type);
6403                 break;
6404         }
6405 }
6406
6407 /**
6408  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6409  * @phba: pointer to lpfc hba data structure.
6410  *
6411  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6412  * memory map.
6413  **/
6414 static void
6415 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6416 {
6417         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6418                 LPFC_SLIPORT_IF0_SMPHR;
6419         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6420                 LPFC_HST_ISR0;
6421         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6422                 LPFC_HST_IMR0;
6423         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6424                 LPFC_HST_ISCR0;
6425 }
6426
6427 /**
6428  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6429  * @phba: pointer to lpfc hba data structure.
6430  * @vf: virtual function number
6431  *
6432  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6433  * based on the given viftual function number, @vf.
6434  *
6435  * Return 0 if successful, otherwise -ENODEV.
6436  **/
6437 static int
6438 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6439 {
6440         if (vf > LPFC_VIR_FUNC_MAX)
6441                 return -ENODEV;
6442
6443         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6444                                 vf * LPFC_VFR_PAGE_SIZE +
6445                                         LPFC_ULP0_RQ_DOORBELL);
6446         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6447                                 vf * LPFC_VFR_PAGE_SIZE +
6448                                         LPFC_ULP0_WQ_DOORBELL);
6449         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6450                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6451         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6452                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6453         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6454                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6455         return 0;
6456 }
6457
6458 /**
6459  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6460  * @phba: pointer to lpfc hba data structure.
6461  *
6462  * This routine is invoked to create the bootstrap mailbox
6463  * region consistent with the SLI-4 interface spec.  This
6464  * routine allocates all memory necessary to communicate
6465  * mailbox commands to the port and sets up all alignment
6466  * needs.  No locks are expected to be held when calling
6467  * this routine.
6468  *
6469  * Return codes
6470  *      0 - successful
6471  *      -ENOMEM - could not allocated memory.
6472  **/
6473 static int
6474 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6475 {
6476         uint32_t bmbx_size;
6477         struct lpfc_dmabuf *dmabuf;
6478         struct dma_address *dma_address;
6479         uint32_t pa_addr;
6480         uint64_t phys_addr;
6481
6482         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6483         if (!dmabuf)
6484                 return -ENOMEM;
6485
6486         /*
6487          * The bootstrap mailbox region is comprised of 2 parts
6488          * plus an alignment restriction of 16 bytes.
6489          */
6490         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6491         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6492                                           bmbx_size,
6493                                           &dmabuf->phys,
6494                                           GFP_KERNEL);
6495         if (!dmabuf->virt) {
6496                 kfree(dmabuf);
6497                 return -ENOMEM;
6498         }
6499         memset(dmabuf->virt, 0, bmbx_size);
6500
6501         /*
6502          * Initialize the bootstrap mailbox pointers now so that the register
6503          * operations are simple later.  The mailbox dma address is required
6504          * to be 16-byte aligned.  Also align the virtual memory as each
6505          * maibox is copied into the bmbx mailbox region before issuing the
6506          * command to the port.
6507          */
6508         phba->sli4_hba.bmbx.dmabuf = dmabuf;
6509         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6510
6511         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6512                                               LPFC_ALIGN_16_BYTE);
6513         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6514                                               LPFC_ALIGN_16_BYTE);
6515
6516         /*
6517          * Set the high and low physical addresses now.  The SLI4 alignment
6518          * requirement is 16 bytes and the mailbox is posted to the port
6519          * as two 30-bit addresses.  The other data is a bit marking whether
6520          * the 30-bit address is the high or low address.
6521          * Upcast bmbx aphys to 64bits so shift instruction compiles
6522          * clean on 32 bit machines.
6523          */
6524         dma_address = &phba->sli4_hba.bmbx.dma_address;
6525         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6526         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6527         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6528                                            LPFC_BMBX_BIT1_ADDR_HI);
6529
6530         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6531         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6532                                            LPFC_BMBX_BIT1_ADDR_LO);
6533         return 0;
6534 }
6535
6536 /**
6537  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6538  * @phba: pointer to lpfc hba data structure.
6539  *
6540  * This routine is invoked to teardown the bootstrap mailbox
6541  * region and release all host resources. This routine requires
6542  * the caller to ensure all mailbox commands recovered, no
6543  * additional mailbox comands are sent, and interrupts are disabled
6544  * before calling this routine.
6545  *
6546  **/
6547 static void
6548 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6549 {
6550         dma_free_coherent(&phba->pcidev->dev,
6551                           phba->sli4_hba.bmbx.bmbx_size,
6552                           phba->sli4_hba.bmbx.dmabuf->virt,
6553                           phba->sli4_hba.bmbx.dmabuf->phys);
6554
6555         kfree(phba->sli4_hba.bmbx.dmabuf);
6556         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6557 }
6558
6559 /**
6560  * lpfc_sli4_read_config - Get the config parameters.
6561  * @phba: pointer to lpfc hba data structure.
6562  *
6563  * This routine is invoked to read the configuration parameters from the HBA.
6564  * The configuration parameters are used to set the base and maximum values
6565  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6566  * allocation for the port.
6567  *
6568  * Return codes
6569  *      0 - successful
6570  *      -ENOMEM - No available memory
6571  *      -EIO - The mailbox failed to complete successfully.
6572  **/
6573 int
6574 lpfc_sli4_read_config(struct lpfc_hba *phba)
6575 {
6576         LPFC_MBOXQ_t *pmb;
6577         struct lpfc_mbx_read_config *rd_config;
6578         union  lpfc_sli4_cfg_shdr *shdr;
6579         uint32_t shdr_status, shdr_add_status;
6580         struct lpfc_mbx_get_func_cfg *get_func_cfg;
6581         struct lpfc_rsrc_desc_fcfcoe *desc;
6582         char *pdesc_0;
6583         uint32_t desc_count;
6584         int length, i, rc = 0, rc2;
6585
6586         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6587         if (!pmb) {
6588                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6589                                 "2011 Unable to allocate memory for issuing "
6590                                 "SLI_CONFIG_SPECIAL mailbox command\n");
6591                 return -ENOMEM;
6592         }
6593
6594         lpfc_read_config(phba, pmb);
6595
6596         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6597         if (rc != MBX_SUCCESS) {
6598                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6599                         "2012 Mailbox failed , mbxCmd x%x "
6600                         "READ_CONFIG, mbxStatus x%x\n",
6601                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
6602                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
6603                 rc = -EIO;
6604         } else {
6605                 rd_config = &pmb->u.mqe.un.rd_config;
6606                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6607                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6608                         phba->sli4_hba.lnk_info.lnk_tp =
6609                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6610                         phba->sli4_hba.lnk_info.lnk_no =
6611                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6612                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6613                                         "3081 lnk_type:%d, lnk_numb:%d\n",
6614                                         phba->sli4_hba.lnk_info.lnk_tp,
6615                                         phba->sli4_hba.lnk_info.lnk_no);
6616                 } else
6617                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6618                                         "3082 Mailbox (x%x) returned ldv:x0\n",
6619                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
6620                 phba->sli4_hba.extents_in_use =
6621                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6622                 phba->sli4_hba.max_cfg_param.max_xri =
6623                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6624                 phba->sli4_hba.max_cfg_param.xri_base =
6625                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6626                 phba->sli4_hba.max_cfg_param.max_vpi =
6627                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6628                 phba->sli4_hba.max_cfg_param.vpi_base =
6629                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6630                 phba->sli4_hba.max_cfg_param.max_rpi =
6631                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6632                 phba->sli4_hba.max_cfg_param.rpi_base =
6633                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6634                 phba->sli4_hba.max_cfg_param.max_vfi =
6635                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6636                 phba->sli4_hba.max_cfg_param.vfi_base =
6637                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6638                 phba->sli4_hba.max_cfg_param.max_fcfi =
6639                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6640                 phba->sli4_hba.max_cfg_param.max_eq =
6641                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6642                 phba->sli4_hba.max_cfg_param.max_rq =
6643                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6644                 phba->sli4_hba.max_cfg_param.max_wq =
6645                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6646                 phba->sli4_hba.max_cfg_param.max_cq =
6647                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6648                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6649                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6650                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6651                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6652                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6653                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6654                 phba->max_vports = phba->max_vpi;
6655                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6656                                 "2003 cfg params Extents? %d "
6657                                 "XRI(B:%d M:%d), "
6658                                 "VPI(B:%d M:%d) "
6659                                 "VFI(B:%d M:%d) "
6660                                 "RPI(B:%d M:%d) "
6661                                 "FCFI(Count:%d)\n",
6662                                 phba->sli4_hba.extents_in_use,
6663                                 phba->sli4_hba.max_cfg_param.xri_base,
6664                                 phba->sli4_hba.max_cfg_param.max_xri,
6665                                 phba->sli4_hba.max_cfg_param.vpi_base,
6666                                 phba->sli4_hba.max_cfg_param.max_vpi,
6667                                 phba->sli4_hba.max_cfg_param.vfi_base,
6668                                 phba->sli4_hba.max_cfg_param.max_vfi,
6669                                 phba->sli4_hba.max_cfg_param.rpi_base,
6670                                 phba->sli4_hba.max_cfg_param.max_rpi,
6671                                 phba->sli4_hba.max_cfg_param.max_fcfi);
6672         }
6673
6674         if (rc)
6675                 goto read_cfg_out;
6676
6677         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6678         if (phba->cfg_hba_queue_depth >
6679                 (phba->sli4_hba.max_cfg_param.max_xri -
6680                         lpfc_sli4_get_els_iocb_cnt(phba)))
6681                 phba->cfg_hba_queue_depth =
6682                         phba->sli4_hba.max_cfg_param.max_xri -
6683                                 lpfc_sli4_get_els_iocb_cnt(phba);
6684
6685         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6686             LPFC_SLI_INTF_IF_TYPE_2)
6687                 goto read_cfg_out;
6688
6689         /* get the pf# and vf# for SLI4 if_type 2 port */
6690         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6691                   sizeof(struct lpfc_sli4_cfg_mhdr));
6692         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6693                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6694                          length, LPFC_SLI4_MBX_EMBED);
6695
6696         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6697         shdr = (union lpfc_sli4_cfg_shdr *)
6698                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6699         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6700         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6701         if (rc2 || shdr_status || shdr_add_status) {
6702                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6703                                 "3026 Mailbox failed , mbxCmd x%x "
6704                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6705                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6706                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6707                 goto read_cfg_out;
6708         }
6709
6710         /* search for fc_fcoe resrouce descriptor */
6711         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6712         desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6713
6714         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6715         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6716         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6717         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6718                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6719         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6720                 goto read_cfg_out;
6721
6722         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6723                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6724                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6725                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6726                         phba->sli4_hba.iov.pf_number =
6727                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6728                         phba->sli4_hba.iov.vf_number =
6729                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6730                         break;
6731                 }
6732         }
6733
6734         if (i < LPFC_RSRC_DESC_MAX_NUM)
6735                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6736                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6737                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6738                                 phba->sli4_hba.iov.vf_number);
6739         else
6740                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6741                                 "3028 GET_FUNCTION_CONFIG: failed to find "
6742                                 "Resrouce Descriptor:x%x\n",
6743                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
6744
6745 read_cfg_out:
6746         mempool_free(pmb, phba->mbox_mem_pool);
6747         return rc;
6748 }
6749
6750 /**
6751  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6752  * @phba: pointer to lpfc hba data structure.
6753  *
6754  * This routine is invoked to setup the port-side endian order when
6755  * the port if_type is 0.  This routine has no function for other
6756  * if_types.
6757  *
6758  * Return codes
6759  *      0 - successful
6760  *      -ENOMEM - No available memory
6761  *      -EIO - The mailbox failed to complete successfully.
6762  **/
6763 static int
6764 lpfc_setup_endian_order(struct lpfc_hba *phba)
6765 {
6766         LPFC_MBOXQ_t *mboxq;
6767         uint32_t if_type, rc = 0;
6768         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6769                                       HOST_ENDIAN_HIGH_WORD1};
6770
6771         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6772         switch (if_type) {
6773         case LPFC_SLI_INTF_IF_TYPE_0:
6774                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6775                                                        GFP_KERNEL);
6776                 if (!mboxq) {
6777                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6778                                         "0492 Unable to allocate memory for "
6779                                         "issuing SLI_CONFIG_SPECIAL mailbox "
6780                                         "command\n");
6781                         return -ENOMEM;
6782                 }
6783
6784                 /*
6785                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6786                  * two words to contain special data values and no other data.
6787                  */
6788                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6789                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6790                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6791                 if (rc != MBX_SUCCESS) {
6792                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6793                                         "0493 SLI_CONFIG_SPECIAL mailbox "
6794                                         "failed with status x%x\n",
6795                                         rc);
6796                         rc = -EIO;
6797                 }
6798                 mempool_free(mboxq, phba->mbox_mem_pool);
6799                 break;
6800         case LPFC_SLI_INTF_IF_TYPE_2:
6801         case LPFC_SLI_INTF_IF_TYPE_1:
6802         default:
6803                 break;
6804         }
6805         return rc;
6806 }
6807
6808 /**
6809  * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
6810  * @phba: pointer to lpfc hba data structure.
6811  *
6812  * This routine is invoked to check the user settable queue counts for EQs and
6813  * CQs. after this routine is called the counts will be set to valid values that
6814  * adhere to the constraints of the system's interrupt vectors and the port's
6815  * queue resources.
6816  *
6817  * Return codes
6818  *      0 - successful
6819  *      -ENOMEM - No available memory
6820  **/
6821 static int
6822 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
6823 {
6824         int cfg_fcp_io_channel;
6825         uint32_t cpu;
6826         uint32_t i = 0;
6827         uint32_t j = 0;
6828
6829
6830         /*
6831          * Sanity check for configured queue parameters against the run-time
6832          * device parameters
6833          */
6834
6835         /* Sanity check on HBA EQ parameters */
6836         cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
6837
6838         /* It doesn't make sense to have more io channels then online CPUs */
6839         for_each_present_cpu(cpu) {
6840                 if (cpu_online(cpu))
6841                         i++;
6842                 j++;
6843         }
6844         phba->sli4_hba.num_online_cpu = i;
6845         phba->sli4_hba.num_present_cpu = j;
6846
6847         if (i < cfg_fcp_io_channel) {
6848                 lpfc_printf_log(phba,
6849                                 KERN_ERR, LOG_INIT,
6850                                 "3188 Reducing IO channels to match number of "
6851                                 "online CPUs: from %d to %d\n",
6852                                 cfg_fcp_io_channel, i);
6853                 cfg_fcp_io_channel = i;
6854         }
6855
6856         if (cfg_fcp_io_channel >
6857             phba->sli4_hba.max_cfg_param.max_eq) {
6858                 if (phba->sli4_hba.max_cfg_param.max_eq <
6859                     LPFC_FCP_IO_CHAN_MIN) {
6860                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6861                                         "2574 Not enough EQs (%d) from the "
6862                                         "pci function for supporting FCP "
6863                                         "EQs (%d)\n",
6864                                         phba->sli4_hba.max_cfg_param.max_eq,
6865                                         phba->cfg_fcp_io_channel);
6866                         goto out_error;
6867                 }
6868                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6869                                 "2575 Reducing IO channels to match number of "
6870                                 "available EQs: from %d to %d\n",
6871                                 cfg_fcp_io_channel,
6872                                 phba->sli4_hba.max_cfg_param.max_eq);
6873                 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq;
6874         }
6875
6876         /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
6877
6878         /* The actual number of FCP event queues adopted */
6879         phba->cfg_fcp_eq_count = cfg_fcp_io_channel;
6880         phba->cfg_fcp_wq_count = cfg_fcp_io_channel;
6881         phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
6882
6883         /* Get EQ depth from module parameter, fake the default for now */
6884         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6885         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
6886
6887         /* Get CQ depth from module parameter, fake the default for now */
6888         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6889         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6890
6891         return 0;
6892 out_error:
6893         return -ENOMEM;
6894 }
6895
6896 /**
6897  * lpfc_sli4_queue_create - Create all the SLI4 queues
6898  * @phba: pointer to lpfc hba data structure.
6899  *
6900  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6901  * operation. For each SLI4 queue type, the parameters such as queue entry
6902  * count (queue depth) shall be taken from the module parameter. For now,
6903  * we just use some constant number as place holder.
6904  *
6905  * Return codes
6906  *      0 - successful
6907  *      -ENOMEM - No availble memory
6908  *      -EIO - The mailbox failed to complete successfully.
6909  **/
6910 int
6911 lpfc_sli4_queue_create(struct lpfc_hba *phba)
6912 {
6913         struct lpfc_queue *qdesc;
6914         int idx;
6915
6916         /*
6917          * Create HBA Record arrays.
6918          */
6919         if (!phba->cfg_fcp_io_channel)
6920                 return -ERANGE;
6921
6922         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6923         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6924         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6925         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6926         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6927         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6928
6929         phba->sli4_hba.hba_eq =  kzalloc((sizeof(struct lpfc_queue *) *
6930                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
6931         if (!phba->sli4_hba.hba_eq) {
6932                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6933                         "2576 Failed allocate memory for "
6934                         "fast-path EQ record array\n");
6935                 goto out_error;
6936         }
6937
6938         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6939                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
6940         if (!phba->sli4_hba.fcp_cq) {
6941                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6942                                 "2577 Failed allocate memory for fast-path "
6943                                 "CQ record array\n");
6944                 goto out_error;
6945         }
6946
6947         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6948                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
6949         if (!phba->sli4_hba.fcp_wq) {
6950                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6951                                 "2578 Failed allocate memory for fast-path "
6952                                 "WQ record array\n");
6953                 goto out_error;
6954         }
6955
6956         /*
6957          * Since the first EQ can have multiple CQs associated with it,
6958          * this array is used to quickly see if we have a FCP fast-path
6959          * CQ match.
6960          */
6961         phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
6962                                          phba->cfg_fcp_io_channel), GFP_KERNEL);
6963         if (!phba->sli4_hba.fcp_cq_map) {
6964                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6965                                 "2545 Failed allocate memory for fast-path "
6966                                 "CQ map\n");
6967                 goto out_error;
6968         }
6969
6970         /*
6971          * Create HBA Event Queues (EQs).  The cfg_fcp_io_channel specifies
6972          * how many EQs to create.
6973          */
6974         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6975
6976                 /* Create EQs */
6977                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6978                                               phba->sli4_hba.eq_ecount);
6979                 if (!qdesc) {
6980                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6981                                         "0497 Failed allocate EQ (%d)\n", idx);
6982                         goto out_error;
6983                 }
6984                 phba->sli4_hba.hba_eq[idx] = qdesc;
6985
6986                 /* Create Fast Path FCP CQs */
6987                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6988                                               phba->sli4_hba.cq_ecount);
6989                 if (!qdesc) {
6990                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6991                                         "0499 Failed allocate fast-path FCP "
6992                                         "CQ (%d)\n", idx);
6993                         goto out_error;
6994                 }
6995                 phba->sli4_hba.fcp_cq[idx] = qdesc;
6996
6997                 /* Create Fast Path FCP WQs */
6998                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6999                                               phba->sli4_hba.wq_ecount);
7000                 if (!qdesc) {
7001                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7002                                         "0503 Failed allocate fast-path FCP "
7003                                         "WQ (%d)\n", idx);
7004                         goto out_error;
7005                 }
7006                 phba->sli4_hba.fcp_wq[idx] = qdesc;
7007         }
7008
7009
7010         /*
7011          * Create Slow Path Completion Queues (CQs)
7012          */
7013
7014         /* Create slow-path Mailbox Command Complete Queue */
7015         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7016                                       phba->sli4_hba.cq_ecount);
7017         if (!qdesc) {
7018                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7019                                 "0500 Failed allocate slow-path mailbox CQ\n");
7020                 goto out_error;
7021         }
7022         phba->sli4_hba.mbx_cq = qdesc;
7023
7024         /* Create slow-path ELS Complete Queue */
7025         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7026                                       phba->sli4_hba.cq_ecount);
7027         if (!qdesc) {
7028                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7029                                 "0501 Failed allocate slow-path ELS CQ\n");
7030                 goto out_error;
7031         }
7032         phba->sli4_hba.els_cq = qdesc;
7033
7034
7035         /*
7036          * Create Slow Path Work Queues (WQs)
7037          */
7038
7039         /* Create Mailbox Command Queue */
7040
7041         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7042                                       phba->sli4_hba.mq_ecount);
7043         if (!qdesc) {
7044                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7045                                 "0505 Failed allocate slow-path MQ\n");
7046                 goto out_error;
7047         }
7048         phba->sli4_hba.mbx_wq = qdesc;
7049
7050         /*
7051          * Create ELS Work Queues
7052          */
7053
7054         /* Create slow-path ELS Work Queue */
7055         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7056                                       phba->sli4_hba.wq_ecount);
7057         if (!qdesc) {
7058                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7059                                 "0504 Failed allocate slow-path ELS WQ\n");
7060                 goto out_error;
7061         }
7062         phba->sli4_hba.els_wq = qdesc;
7063
7064         /*
7065          * Create Receive Queue (RQ)
7066          */
7067
7068         /* Create Receive Queue for header */
7069         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7070                                       phba->sli4_hba.rq_ecount);
7071         if (!qdesc) {
7072                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7073                                 "0506 Failed allocate receive HRQ\n");
7074                 goto out_error;
7075         }
7076         phba->sli4_hba.hdr_rq = qdesc;
7077
7078         /* Create Receive Queue for data */
7079         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7080                                       phba->sli4_hba.rq_ecount);
7081         if (!qdesc) {
7082                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7083                                 "0507 Failed allocate receive DRQ\n");
7084                 goto out_error;
7085         }
7086         phba->sli4_hba.dat_rq = qdesc;
7087
7088         return 0;
7089
7090 out_error:
7091         lpfc_sli4_queue_destroy(phba);
7092         return -ENOMEM;
7093 }
7094
7095 /**
7096  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7097  * @phba: pointer to lpfc hba data structure.
7098  *
7099  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7100  * operation.
7101  *
7102  * Return codes
7103  *      0 - successful
7104  *      -ENOMEM - No available memory
7105  *      -EIO - The mailbox failed to complete successfully.
7106  **/
7107 void
7108 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7109 {
7110         int idx;
7111
7112         if (phba->sli4_hba.hba_eq != NULL) {
7113                 /* Release HBA event queue */
7114                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7115                         if (phba->sli4_hba.hba_eq[idx] != NULL) {
7116                                 lpfc_sli4_queue_free(
7117                                         phba->sli4_hba.hba_eq[idx]);
7118                                 phba->sli4_hba.hba_eq[idx] = NULL;
7119                         }
7120                 }
7121                 kfree(phba->sli4_hba.hba_eq);
7122                 phba->sli4_hba.hba_eq = NULL;
7123         }
7124
7125         if (phba->sli4_hba.fcp_cq != NULL) {
7126                 /* Release FCP completion queue */
7127                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7128                         if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7129                                 lpfc_sli4_queue_free(
7130                                         phba->sli4_hba.fcp_cq[idx]);
7131                                 phba->sli4_hba.fcp_cq[idx] = NULL;
7132                         }
7133                 }
7134                 kfree(phba->sli4_hba.fcp_cq);
7135                 phba->sli4_hba.fcp_cq = NULL;
7136         }
7137
7138         if (phba->sli4_hba.fcp_wq != NULL) {
7139                 /* Release FCP work queue */
7140                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7141                         if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7142                                 lpfc_sli4_queue_free(
7143                                         phba->sli4_hba.fcp_wq[idx]);
7144                                 phba->sli4_hba.fcp_wq[idx] = NULL;
7145                         }
7146                 }
7147                 kfree(phba->sli4_hba.fcp_wq);
7148                 phba->sli4_hba.fcp_wq = NULL;
7149         }
7150
7151         if (phba->pci_bar0_memmap_p) {
7152                 iounmap(phba->pci_bar0_memmap_p);
7153                 phba->pci_bar0_memmap_p = NULL;
7154         }
7155         if (phba->pci_bar2_memmap_p) {
7156                 iounmap(phba->pci_bar2_memmap_p);
7157                 phba->pci_bar2_memmap_p = NULL;
7158         }
7159         if (phba->pci_bar4_memmap_p) {
7160                 iounmap(phba->pci_bar4_memmap_p);
7161                 phba->pci_bar4_memmap_p = NULL;
7162         }
7163
7164         /* Release FCP CQ mapping array */
7165         if (phba->sli4_hba.fcp_cq_map != NULL) {
7166                 kfree(phba->sli4_hba.fcp_cq_map);
7167                 phba->sli4_hba.fcp_cq_map = NULL;
7168         }
7169
7170         /* Release mailbox command work queue */
7171         if (phba->sli4_hba.mbx_wq != NULL) {
7172                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7173                 phba->sli4_hba.mbx_wq = NULL;
7174         }
7175
7176         /* Release ELS work queue */
7177         if (phba->sli4_hba.els_wq != NULL) {
7178                 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7179                 phba->sli4_hba.els_wq = NULL;
7180         }
7181
7182         /* Release unsolicited receive queue */
7183         if (phba->sli4_hba.hdr_rq != NULL) {
7184                 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7185                 phba->sli4_hba.hdr_rq = NULL;
7186         }
7187         if (phba->sli4_hba.dat_rq != NULL) {
7188                 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7189                 phba->sli4_hba.dat_rq = NULL;
7190         }
7191
7192         /* Release ELS complete queue */
7193         if (phba->sli4_hba.els_cq != NULL) {
7194                 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7195                 phba->sli4_hba.els_cq = NULL;
7196         }
7197
7198         /* Release mailbox command complete queue */
7199         if (phba->sli4_hba.mbx_cq != NULL) {
7200                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7201                 phba->sli4_hba.mbx_cq = NULL;
7202         }
7203
7204         return;
7205 }
7206
7207 /**
7208  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7209  * @phba: pointer to lpfc hba data structure.
7210  *
7211  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7212  * operation.
7213  *
7214  * Return codes
7215  *      0 - successful
7216  *      -ENOMEM - No available memory
7217  *      -EIO - The mailbox failed to complete successfully.
7218  **/
7219 int
7220 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7221 {
7222         struct lpfc_sli *psli = &phba->sli;
7223         struct lpfc_sli_ring *pring;
7224         int rc = -ENOMEM;
7225         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7226         int fcp_cq_index = 0;
7227         uint32_t shdr_status, shdr_add_status;
7228         union lpfc_sli4_cfg_shdr *shdr;
7229         LPFC_MBOXQ_t *mboxq;
7230         uint32_t length;
7231
7232         /* Check for dual-ULP support */
7233         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7234         if (!mboxq) {
7235                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7236                                 "3249 Unable to allocate memory for "
7237                                 "QUERY_FW_CFG mailbox command\n");
7238                 return -ENOMEM;
7239         }
7240         length = (sizeof(struct lpfc_mbx_query_fw_config) -
7241                   sizeof(struct lpfc_sli4_cfg_mhdr));
7242         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7243                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7244                          length, LPFC_SLI4_MBX_EMBED);
7245
7246         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7247
7248         shdr = (union lpfc_sli4_cfg_shdr *)
7249                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7250         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7251         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7252         if (shdr_status || shdr_add_status || rc) {
7253                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7254                                 "3250 QUERY_FW_CFG mailbox failed with status "
7255                                 "x%x add_status x%x, mbx status x%x\n",
7256                                 shdr_status, shdr_add_status, rc);
7257                 if (rc != MBX_TIMEOUT)
7258                         mempool_free(mboxq, phba->mbox_mem_pool);
7259                 rc = -ENXIO;
7260                 goto out_error;
7261         }
7262
7263         phba->sli4_hba.fw_func_mode =
7264                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7265         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7266         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
7267         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7268                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7269                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7270                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7271
7272         if (rc != MBX_TIMEOUT)
7273                 mempool_free(mboxq, phba->mbox_mem_pool);
7274
7275         /*
7276          * Set up HBA Event Queues (EQs)
7277          */
7278
7279         /* Set up HBA event queue */
7280         if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7281                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7282                                 "3147 Fast-path EQs not allocated\n");
7283                 rc = -ENOMEM;
7284                 goto out_error;
7285         }
7286         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7287                 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7288                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7289                                         "0522 Fast-path EQ (%d) not "
7290                                         "allocated\n", fcp_eqidx);
7291                         rc = -ENOMEM;
7292                         goto out_destroy_hba_eq;
7293                 }
7294                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7295                          (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7296                 if (rc) {
7297                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7298                                         "0523 Failed setup of fast-path EQ "
7299                                         "(%d), rc = 0x%x\n", fcp_eqidx, rc);
7300                         goto out_destroy_hba_eq;
7301                 }
7302                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7303                                 "2584 HBA EQ setup: "
7304                                 "queue[%d]-id=%d\n", fcp_eqidx,
7305                                 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7306         }
7307
7308         /* Set up fast-path FCP Response Complete Queue */
7309         if (!phba->sli4_hba.fcp_cq) {
7310                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7311                                 "3148 Fast-path FCP CQ array not "
7312                                 "allocated\n");
7313                 rc = -ENOMEM;
7314                 goto out_destroy_hba_eq;
7315         }
7316
7317         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7318                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7319                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7320                                         "0526 Fast-path FCP CQ (%d) not "
7321                                         "allocated\n", fcp_cqidx);
7322                         rc = -ENOMEM;
7323                         goto out_destroy_fcp_cq;
7324                 }
7325                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7326                         phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7327                 if (rc) {
7328                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7329                                         "0527 Failed setup of fast-path FCP "
7330                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
7331                         goto out_destroy_fcp_cq;
7332                 }
7333
7334                 /* Setup fcp_cq_map for fast lookup */
7335                 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7336                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7337
7338                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7339                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
7340                                 "parent seq[%d]-id=%d\n",
7341                                 fcp_cqidx,
7342                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7343                                 fcp_cqidx,
7344                                 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7345         }
7346
7347         /* Set up fast-path FCP Work Queue */
7348         if (!phba->sli4_hba.fcp_wq) {
7349                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7350                                 "3149 Fast-path FCP WQ array not "
7351                                 "allocated\n");
7352                 rc = -ENOMEM;
7353                 goto out_destroy_fcp_cq;
7354         }
7355
7356         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7357                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7358                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7359                                         "0534 Fast-path FCP WQ (%d) not "
7360                                         "allocated\n", fcp_wqidx);
7361                         rc = -ENOMEM;
7362                         goto out_destroy_fcp_wq;
7363                 }
7364                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7365                                     phba->sli4_hba.fcp_cq[fcp_wqidx],
7366                                     LPFC_FCP);
7367                 if (rc) {
7368                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7369                                         "0535 Failed setup of fast-path FCP "
7370                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
7371                         goto out_destroy_fcp_wq;
7372                 }
7373
7374                 /* Bind this WQ to the next FCP ring */
7375                 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7376                 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7377                 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7378
7379                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7380                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
7381                                 "parent cq[%d]-id=%d\n",
7382                                 fcp_wqidx,
7383                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7384                                 fcp_cq_index,
7385                                 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7386         }
7387         /*
7388          * Set up Complete Queues (CQs)
7389          */
7390
7391         /* Set up slow-path MBOX Complete Queue as the first CQ */
7392         if (!phba->sli4_hba.mbx_cq) {
7393                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7394                                 "0528 Mailbox CQ not allocated\n");
7395                 rc = -ENOMEM;
7396                 goto out_destroy_fcp_wq;
7397         }
7398         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7399                         phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7400         if (rc) {
7401                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7402                                 "0529 Failed setup of slow-path mailbox CQ: "
7403                                 "rc = 0x%x\n", rc);
7404                 goto out_destroy_fcp_wq;
7405         }
7406         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7407                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7408                         phba->sli4_hba.mbx_cq->queue_id,
7409                         phba->sli4_hba.hba_eq[0]->queue_id);
7410
7411         /* Set up slow-path ELS Complete Queue */
7412         if (!phba->sli4_hba.els_cq) {
7413                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7414                                 "0530 ELS CQ not allocated\n");
7415                 rc = -ENOMEM;
7416                 goto out_destroy_mbx_cq;
7417         }
7418         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7419                         phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7420         if (rc) {
7421                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7422                                 "0531 Failed setup of slow-path ELS CQ: "
7423                                 "rc = 0x%x\n", rc);
7424                 goto out_destroy_mbx_cq;
7425         }
7426         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7427                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7428                         phba->sli4_hba.els_cq->queue_id,
7429                         phba->sli4_hba.hba_eq[0]->queue_id);
7430
7431         /*
7432          * Set up all the Work Queues (WQs)
7433          */
7434
7435         /* Set up Mailbox Command Queue */
7436         if (!phba->sli4_hba.mbx_wq) {
7437                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7438                                 "0538 Slow-path MQ not allocated\n");
7439                 rc = -ENOMEM;
7440                 goto out_destroy_els_cq;
7441         }
7442         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7443                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
7444         if (rc) {
7445                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7446                                 "0539 Failed setup of slow-path MQ: "
7447                                 "rc = 0x%x\n", rc);
7448                 goto out_destroy_els_cq;
7449         }
7450         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7451                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7452                         phba->sli4_hba.mbx_wq->queue_id,
7453                         phba->sli4_hba.mbx_cq->queue_id);
7454
7455         /* Set up slow-path ELS Work Queue */
7456         if (!phba->sli4_hba.els_wq) {
7457                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7458                                 "0536 Slow-path ELS WQ not allocated\n");
7459                 rc = -ENOMEM;
7460                 goto out_destroy_mbx_wq;
7461         }
7462         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7463                             phba->sli4_hba.els_cq, LPFC_ELS);
7464         if (rc) {
7465                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7466                                 "0537 Failed setup of slow-path ELS WQ: "
7467                                 "rc = 0x%x\n", rc);
7468                 goto out_destroy_mbx_wq;
7469         }
7470
7471         /* Bind this WQ to the ELS ring */
7472         pring = &psli->ring[LPFC_ELS_RING];
7473         pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7474         phba->sli4_hba.els_cq->pring = pring;
7475
7476         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7477                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7478                         phba->sli4_hba.els_wq->queue_id,
7479                         phba->sli4_hba.els_cq->queue_id);
7480
7481         /*
7482          * Create Receive Queue (RQ)
7483          */
7484         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7485                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7486                                 "0540 Receive Queue not allocated\n");
7487                 rc = -ENOMEM;
7488                 goto out_destroy_els_wq;
7489         }
7490
7491         lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7492         lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7493
7494         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7495                             phba->sli4_hba.els_cq, LPFC_USOL);
7496         if (rc) {
7497                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7498                                 "0541 Failed setup of Receive Queue: "
7499                                 "rc = 0x%x\n", rc);
7500                 goto out_destroy_fcp_wq;
7501         }
7502
7503         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7504                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7505                         "parent cq-id=%d\n",
7506                         phba->sli4_hba.hdr_rq->queue_id,
7507                         phba->sli4_hba.dat_rq->queue_id,
7508                         phba->sli4_hba.els_cq->queue_id);
7509         return 0;
7510
7511 out_destroy_els_wq:
7512         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7513 out_destroy_mbx_wq:
7514         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7515 out_destroy_els_cq:
7516         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7517 out_destroy_mbx_cq:
7518         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7519 out_destroy_fcp_wq:
7520         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7521                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7522 out_destroy_fcp_cq:
7523         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7524                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7525 out_destroy_hba_eq:
7526         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7527                 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7528 out_error:
7529         return rc;
7530 }
7531
7532 /**
7533  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7534  * @phba: pointer to lpfc hba data structure.
7535  *
7536  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7537  * operation.
7538  *
7539  * Return codes
7540  *      0 - successful
7541  *      -ENOMEM - No available memory
7542  *      -EIO - The mailbox failed to complete successfully.
7543  **/
7544 void
7545 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7546 {
7547         int fcp_qidx;
7548
7549         /* Unset mailbox command work queue */
7550         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7551         /* Unset ELS work queue */
7552         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7553         /* Unset unsolicited receive queue */
7554         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7555         /* Unset FCP work queue */
7556         if (phba->sli4_hba.fcp_wq) {
7557                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7558                      fcp_qidx++)
7559                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7560         }
7561         /* Unset mailbox command complete queue */
7562         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7563         /* Unset ELS complete queue */
7564         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7565         /* Unset FCP response complete queue */
7566         if (phba->sli4_hba.fcp_cq) {
7567                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7568                      fcp_qidx++)
7569                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7570         }
7571         /* Unset fast-path event queue */
7572         if (phba->sli4_hba.hba_eq) {
7573                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7574                      fcp_qidx++)
7575                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7576         }
7577 }
7578
7579 /**
7580  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7581  * @phba: pointer to lpfc hba data structure.
7582  *
7583  * This routine is invoked to allocate and set up a pool of completion queue
7584  * events. The body of the completion queue event is a completion queue entry
7585  * CQE. For now, this pool is used for the interrupt service routine to queue
7586  * the following HBA completion queue events for the worker thread to process:
7587  *   - Mailbox asynchronous events
7588  *   - Receive queue completion unsolicited events
7589  * Later, this can be used for all the slow-path events.
7590  *
7591  * Return codes
7592  *      0 - successful
7593  *      -ENOMEM - No available memory
7594  **/
7595 static int
7596 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7597 {
7598         struct lpfc_cq_event *cq_event;
7599         int i;
7600
7601         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7602                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7603                 if (!cq_event)
7604                         goto out_pool_create_fail;
7605                 list_add_tail(&cq_event->list,
7606                               &phba->sli4_hba.sp_cqe_event_pool);
7607         }
7608         return 0;
7609
7610 out_pool_create_fail:
7611         lpfc_sli4_cq_event_pool_destroy(phba);
7612         return -ENOMEM;
7613 }
7614
7615 /**
7616  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7617  * @phba: pointer to lpfc hba data structure.
7618  *
7619  * This routine is invoked to free the pool of completion queue events at
7620  * driver unload time. Note that, it is the responsibility of the driver
7621  * cleanup routine to free all the outstanding completion-queue events
7622  * allocated from this pool back into the pool before invoking this routine
7623  * to destroy the pool.
7624  **/
7625 static void
7626 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7627 {
7628         struct lpfc_cq_event *cq_event, *next_cq_event;
7629
7630         list_for_each_entry_safe(cq_event, next_cq_event,
7631                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
7632                 list_del(&cq_event->list);
7633                 kfree(cq_event);
7634         }
7635 }
7636
7637 /**
7638  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7639  * @phba: pointer to lpfc hba data structure.
7640  *
7641  * This routine is the lock free version of the API invoked to allocate a
7642  * completion-queue event from the free pool.
7643  *
7644  * Return: Pointer to the newly allocated completion-queue event if successful
7645  *         NULL otherwise.
7646  **/
7647 struct lpfc_cq_event *
7648 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7649 {
7650         struct lpfc_cq_event *cq_event = NULL;
7651
7652         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7653                          struct lpfc_cq_event, list);
7654         return cq_event;
7655 }
7656
7657 /**
7658  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7659  * @phba: pointer to lpfc hba data structure.
7660  *
7661  * This routine is the lock version of the API invoked to allocate a
7662  * completion-queue event from the free pool.
7663  *
7664  * Return: Pointer to the newly allocated completion-queue event if successful
7665  *         NULL otherwise.
7666  **/
7667 struct lpfc_cq_event *
7668 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7669 {
7670         struct lpfc_cq_event *cq_event;
7671         unsigned long iflags;
7672
7673         spin_lock_irqsave(&phba->hbalock, iflags);
7674         cq_event = __lpfc_sli4_cq_event_alloc(phba);
7675         spin_unlock_irqrestore(&phba->hbalock, iflags);
7676         return cq_event;
7677 }
7678
7679 /**
7680  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7681  * @phba: pointer to lpfc hba data structure.
7682  * @cq_event: pointer to the completion queue event to be freed.
7683  *
7684  * This routine is the lock free version of the API invoked to release a
7685  * completion-queue event back into the free pool.
7686  **/
7687 void
7688 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7689                              struct lpfc_cq_event *cq_event)
7690 {
7691         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7692 }
7693
7694 /**
7695  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7696  * @phba: pointer to lpfc hba data structure.
7697  * @cq_event: pointer to the completion queue event to be freed.
7698  *
7699  * This routine is the lock version of the API invoked to release a
7700  * completion-queue event back into the free pool.
7701  **/
7702 void
7703 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7704                            struct lpfc_cq_event *cq_event)
7705 {
7706         unsigned long iflags;
7707         spin_lock_irqsave(&phba->hbalock, iflags);
7708         __lpfc_sli4_cq_event_release(phba, cq_event);
7709         spin_unlock_irqrestore(&phba->hbalock, iflags);
7710 }
7711
7712 /**
7713  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7714  * @phba: pointer to lpfc hba data structure.
7715  *
7716  * This routine is to free all the pending completion-queue events to the
7717  * back into the free pool for device reset.
7718  **/
7719 static void
7720 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7721 {
7722         LIST_HEAD(cqelist);
7723         struct lpfc_cq_event *cqe;
7724         unsigned long iflags;
7725
7726         /* Retrieve all the pending WCQEs from pending WCQE lists */
7727         spin_lock_irqsave(&phba->hbalock, iflags);
7728         /* Pending FCP XRI abort events */
7729         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7730                          &cqelist);
7731         /* Pending ELS XRI abort events */
7732         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7733                          &cqelist);
7734         /* Pending asynnc events */
7735         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7736                          &cqelist);
7737         spin_unlock_irqrestore(&phba->hbalock, iflags);
7738
7739         while (!list_empty(&cqelist)) {
7740                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7741                 lpfc_sli4_cq_event_release(phba, cqe);
7742         }
7743 }
7744
7745 /**
7746  * lpfc_pci_function_reset - Reset pci function.
7747  * @phba: pointer to lpfc hba data structure.
7748  *
7749  * This routine is invoked to request a PCI function reset. It will destroys
7750  * all resources assigned to the PCI function which originates this request.
7751  *
7752  * Return codes
7753  *      0 - successful
7754  *      -ENOMEM - No available memory
7755  *      -EIO - The mailbox failed to complete successfully.
7756  **/
7757 int
7758 lpfc_pci_function_reset(struct lpfc_hba *phba)
7759 {
7760         LPFC_MBOXQ_t *mboxq;
7761         uint32_t rc = 0, if_type;
7762         uint32_t shdr_status, shdr_add_status;
7763         uint32_t rdy_chk, num_resets = 0, reset_again = 0;
7764         union lpfc_sli4_cfg_shdr *shdr;
7765         struct lpfc_register reg_data;
7766         uint16_t devid;
7767
7768         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7769         switch (if_type) {
7770         case LPFC_SLI_INTF_IF_TYPE_0:
7771                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7772                                                        GFP_KERNEL);
7773                 if (!mboxq) {
7774                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7775                                         "0494 Unable to allocate memory for "
7776                                         "issuing SLI_FUNCTION_RESET mailbox "
7777                                         "command\n");
7778                         return -ENOMEM;
7779                 }
7780
7781                 /* Setup PCI function reset mailbox-ioctl command */
7782                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7783                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7784                                  LPFC_SLI4_MBX_EMBED);
7785                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7786                 shdr = (union lpfc_sli4_cfg_shdr *)
7787                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7788                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7789                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7790                                          &shdr->response);
7791                 if (rc != MBX_TIMEOUT)
7792                         mempool_free(mboxq, phba->mbox_mem_pool);
7793                 if (shdr_status || shdr_add_status || rc) {
7794                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7795                                         "0495 SLI_FUNCTION_RESET mailbox "
7796                                         "failed with status x%x add_status x%x,"
7797                                         " mbx status x%x\n",
7798                                         shdr_status, shdr_add_status, rc);
7799                         rc = -ENXIO;
7800                 }
7801                 break;
7802         case LPFC_SLI_INTF_IF_TYPE_2:
7803                 for (num_resets = 0;
7804                      num_resets < MAX_IF_TYPE_2_RESETS;
7805                      num_resets++) {
7806                         reg_data.word0 = 0;
7807                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
7808                                LPFC_SLIPORT_LITTLE_ENDIAN);
7809                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
7810                                LPFC_SLIPORT_INIT_PORT);
7811                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7812                                CTRLregaddr);
7813                         /* flush */
7814                         pci_read_config_word(phba->pcidev,
7815                                              PCI_DEVICE_ID, &devid);
7816                         /*
7817                          * Poll the Port Status Register and wait for RDY for
7818                          * up to 10 seconds.  If the port doesn't respond, treat
7819                          * it as an error.  If the port responds with RN, start
7820                          * the loop again.
7821                          */
7822                         for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
7823                                 msleep(10);
7824                                 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7825                                               STATUSregaddr, &reg_data.word0)) {
7826                                         rc = -ENODEV;
7827                                         goto out;
7828                                 }
7829                                 if (bf_get(lpfc_sliport_status_rn, &reg_data))
7830                                         reset_again++;
7831                                 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
7832                                         break;
7833                         }
7834
7835                         /*
7836                          * If the port responds to the init request with
7837                          * reset needed, delay for a bit and restart the loop.
7838                          */
7839                         if (reset_again && (rdy_chk < 1000)) {
7840                                 msleep(10);
7841                                 reset_again = 0;
7842                                 continue;
7843                         }
7844
7845                         /* Detect any port errors. */
7846                         if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7847                             (rdy_chk >= 1000)) {
7848                                 phba->work_status[0] = readl(
7849                                         phba->sli4_hba.u.if_type2.ERR1regaddr);
7850                                 phba->work_status[1] = readl(
7851                                         phba->sli4_hba.u.if_type2.ERR2regaddr);
7852                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7853                                         "2890 Port error detected during port "
7854                                         "reset(%d): wait_tmo:%d ms, "
7855                                         "port status reg 0x%x, "
7856                                         "error 1=0x%x, error 2=0x%x\n",
7857                                         num_resets, rdy_chk*10,
7858                                         reg_data.word0,
7859                                         phba->work_status[0],
7860                                         phba->work_status[1]);
7861                                 rc = -ENODEV;
7862                         }
7863
7864                         /*
7865                          * Terminate the outer loop provided the Port indicated
7866                          * ready within 10 seconds.
7867                          */
7868                         if (rdy_chk < 1000)
7869                                 break;
7870                 }
7871                 /* delay driver action following IF_TYPE_2 function reset */
7872                 msleep(100);
7873                 break;
7874         case LPFC_SLI_INTF_IF_TYPE_1:
7875         default:
7876                 break;
7877         }
7878
7879 out:
7880         /* Catch the not-ready port failure after a port reset. */
7881         if (num_resets >= MAX_IF_TYPE_2_RESETS) {
7882                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7883                                 "3317 HBA not functional: IP Reset Failed "
7884                                 "after (%d) retries, try: "
7885                                 "echo fw_reset > board_mode\n", num_resets);
7886                 rc = -ENODEV;
7887         }
7888
7889         return rc;
7890 }
7891
7892 /**
7893  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7894  * @phba: pointer to lpfc hba data structure.
7895  *
7896  * This routine is invoked to set up the PCI device memory space for device
7897  * with SLI-4 interface spec.
7898  *
7899  * Return codes
7900  *      0 - successful
7901  *      other values - error
7902  **/
7903 static int
7904 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7905 {
7906         struct pci_dev *pdev;
7907         unsigned long bar0map_len, bar1map_len, bar2map_len;
7908         int error = -ENODEV;
7909         uint32_t if_type;
7910
7911         /* Obtain PCI device reference */
7912         if (!phba->pcidev)
7913                 return error;
7914         else
7915                 pdev = phba->pcidev;
7916
7917         /* Set the device DMA mask size */
7918         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7919          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7920                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7921                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7922                         return error;
7923                 }
7924         }
7925
7926         /*
7927          * The BARs and register set definitions and offset locations are
7928          * dependent on the if_type.
7929          */
7930         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7931                                   &phba->sli4_hba.sli_intf.word0)) {
7932                 return error;
7933         }
7934
7935         /* There is no SLI3 failback for SLI4 devices. */
7936         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7937             LPFC_SLI_INTF_VALID) {
7938                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7939                                 "2894 SLI_INTF reg contents invalid "
7940                                 "sli_intf reg 0x%x\n",
7941                                 phba->sli4_hba.sli_intf.word0);
7942                 return error;
7943         }
7944
7945         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7946         /*
7947          * Get the bus address of SLI4 device Bar regions and the
7948          * number of bytes required by each mapping. The mapping of the
7949          * particular PCI BARs regions is dependent on the type of
7950          * SLI4 device.
7951          */
7952         if (pci_resource_start(pdev, 0)) {
7953                 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7954                 bar0map_len = pci_resource_len(pdev, 0);
7955
7956                 /*
7957                  * Map SLI4 PCI Config Space Register base to a kernel virtual
7958                  * addr
7959                  */
7960                 phba->sli4_hba.conf_regs_memmap_p =
7961                         ioremap(phba->pci_bar0_map, bar0map_len);
7962                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7963                         dev_printk(KERN_ERR, &pdev->dev,
7964                                    "ioremap failed for SLI4 PCI config "
7965                                    "registers.\n");
7966                         goto out;
7967                 }
7968                 /* Set up BAR0 PCI config space register memory map */
7969                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7970         } else {
7971                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7972                 bar0map_len = pci_resource_len(pdev, 1);
7973                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7974                         dev_printk(KERN_ERR, &pdev->dev,
7975                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7976                         goto out;
7977                 }
7978                 phba->sli4_hba.conf_regs_memmap_p =
7979                                 ioremap(phba->pci_bar0_map, bar0map_len);
7980                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7981                         dev_printk(KERN_ERR, &pdev->dev,
7982                                 "ioremap failed for SLI4 PCI config "
7983                                 "registers.\n");
7984                                 goto out;
7985                 }
7986                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7987         }
7988
7989         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7990             (pci_resource_start(pdev, 2))) {
7991                 /*
7992                  * Map SLI4 if type 0 HBA Control Register base to a kernel
7993                  * virtual address and setup the registers.
7994                  */
7995                 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7996                 bar1map_len = pci_resource_len(pdev, 2);
7997                 phba->sli4_hba.ctrl_regs_memmap_p =
7998                                 ioremap(phba->pci_bar1_map, bar1map_len);
7999                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
8000                         dev_printk(KERN_ERR, &pdev->dev,
8001                            "ioremap failed for SLI4 HBA control registers.\n");
8002                         goto out_iounmap_conf;
8003                 }
8004                 lpfc_sli4_bar1_register_memmap(phba);
8005         }
8006
8007         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8008             (pci_resource_start(pdev, 4))) {
8009                 /*
8010                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
8011                  * virtual address and setup the registers.
8012                  */
8013                 phba->pci_bar2_map = pci_resource_start(pdev, 4);
8014                 bar2map_len = pci_resource_len(pdev, 4);
8015                 phba->sli4_hba.drbl_regs_memmap_p =
8016                                 ioremap(phba->pci_bar2_map, bar2map_len);
8017                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
8018                         dev_printk(KERN_ERR, &pdev->dev,
8019                            "ioremap failed for SLI4 HBA doorbell registers.\n");
8020                         goto out_iounmap_ctrl;
8021                 }
8022                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
8023                 if (error)
8024                         goto out_iounmap_all;
8025         }
8026
8027         return 0;
8028
8029 out_iounmap_all:
8030         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8031 out_iounmap_ctrl:
8032         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8033 out_iounmap_conf:
8034         iounmap(phba->sli4_hba.conf_regs_memmap_p);
8035 out:
8036         return error;
8037 }
8038
8039 /**
8040  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8041  * @phba: pointer to lpfc hba data structure.
8042  *
8043  * This routine is invoked to unset the PCI device memory space for device
8044  * with SLI-4 interface spec.
8045  **/
8046 static void
8047 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8048 {
8049         uint32_t if_type;
8050         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8051
8052         switch (if_type) {
8053         case LPFC_SLI_INTF_IF_TYPE_0:
8054                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8055                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8056                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8057                 break;
8058         case LPFC_SLI_INTF_IF_TYPE_2:
8059                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8060                 break;
8061         case LPFC_SLI_INTF_IF_TYPE_1:
8062         default:
8063                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8064                            "FATAL - unsupported SLI4 interface type - %d\n",
8065                            if_type);
8066                 break;
8067         }
8068 }
8069
8070 /**
8071  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8072  * @phba: pointer to lpfc hba data structure.
8073  *
8074  * This routine is invoked to enable the MSI-X interrupt vectors to device
8075  * with SLI-3 interface specs. The kernel function pci_enable_msix() is
8076  * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
8077  * invoked, enables either all or nothing, depending on the current
8078  * availability of PCI vector resources. The device driver is responsible
8079  * for calling the individual request_irq() to register each MSI-X vector
8080  * with a interrupt handler, which is done in this function. Note that
8081  * later when device is unloading, the driver should always call free_irq()
8082  * on all MSI-X vectors it has done request_irq() on before calling
8083  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8084  * will be left with MSI-X enabled and leaks its vectors.
8085  *
8086  * Return codes
8087  *   0 - successful
8088  *   other values - error
8089  **/
8090 static int
8091 lpfc_sli_enable_msix(struct lpfc_hba *phba)
8092 {
8093         int rc, i;
8094         LPFC_MBOXQ_t *pmb;
8095
8096         /* Set up MSI-X multi-message vectors */
8097         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8098                 phba->msix_entries[i].entry = i;
8099
8100         /* Configure MSI-X capability structure */
8101         rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
8102                                 ARRAY_SIZE(phba->msix_entries));
8103         if (rc) {
8104                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8105                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
8106                 goto msi_fail_out;
8107         }
8108         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8109                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8110                                 "0477 MSI-X entry[%d]: vector=x%x "
8111                                 "message=%d\n", i,
8112                                 phba->msix_entries[i].vector,
8113                                 phba->msix_entries[i].entry);
8114         /*
8115          * Assign MSI-X vectors to interrupt handlers
8116          */
8117
8118         /* vector-0 is associated to slow-path handler */
8119         rc = request_irq(phba->msix_entries[0].vector,
8120                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
8121                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
8122         if (rc) {
8123                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8124                                 "0421 MSI-X slow-path request_irq failed "
8125                                 "(%d)\n", rc);
8126                 goto msi_fail_out;
8127         }
8128
8129         /* vector-1 is associated to fast-path handler */
8130         rc = request_irq(phba->msix_entries[1].vector,
8131                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
8132                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
8133
8134         if (rc) {
8135                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8136                                 "0429 MSI-X fast-path request_irq failed "
8137                                 "(%d)\n", rc);
8138                 goto irq_fail_out;
8139         }
8140
8141         /*
8142          * Configure HBA MSI-X attention conditions to messages
8143          */
8144         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8145
8146         if (!pmb) {
8147                 rc = -ENOMEM;
8148                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8149                                 "0474 Unable to allocate memory for issuing "
8150                                 "MBOX_CONFIG_MSI command\n");
8151                 goto mem_fail_out;
8152         }
8153         rc = lpfc_config_msi(phba, pmb);
8154         if (rc)
8155                 goto mbx_fail_out;
8156         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8157         if (rc != MBX_SUCCESS) {
8158                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8159                                 "0351 Config MSI mailbox command failed, "
8160                                 "mbxCmd x%x, mbxStatus x%x\n",
8161                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8162                 goto mbx_fail_out;
8163         }
8164
8165         /* Free memory allocated for mailbox command */
8166         mempool_free(pmb, phba->mbox_mem_pool);
8167         return rc;
8168
8169 mbx_fail_out:
8170         /* Free memory allocated for mailbox command */
8171         mempool_free(pmb, phba->mbox_mem_pool);
8172
8173 mem_fail_out:
8174         /* free the irq already requested */
8175         free_irq(phba->msix_entries[1].vector, phba);
8176
8177 irq_fail_out:
8178         /* free the irq already requested */
8179         free_irq(phba->msix_entries[0].vector, phba);
8180
8181 msi_fail_out:
8182         /* Unconfigure MSI-X capability structure */
8183         pci_disable_msix(phba->pcidev);
8184         return rc;
8185 }
8186
8187 /**
8188  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8189  * @phba: pointer to lpfc hba data structure.
8190  *
8191  * This routine is invoked to release the MSI-X vectors and then disable the
8192  * MSI-X interrupt mode to device with SLI-3 interface spec.
8193  **/
8194 static void
8195 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8196 {
8197         int i;
8198
8199         /* Free up MSI-X multi-message vectors */
8200         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8201                 free_irq(phba->msix_entries[i].vector, phba);
8202         /* Disable MSI-X */
8203         pci_disable_msix(phba->pcidev);
8204
8205         return;
8206 }
8207
8208 /**
8209  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8210  * @phba: pointer to lpfc hba data structure.
8211  *
8212  * This routine is invoked to enable the MSI interrupt mode to device with
8213  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8214  * enable the MSI vector. The device driver is responsible for calling the
8215  * request_irq() to register MSI vector with a interrupt the handler, which
8216  * is done in this function.
8217  *
8218  * Return codes
8219  *      0 - successful
8220  *      other values - error
8221  */
8222 static int
8223 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8224 {
8225         int rc;
8226
8227         rc = pci_enable_msi(phba->pcidev);
8228         if (!rc)
8229                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8230                                 "0462 PCI enable MSI mode success.\n");
8231         else {
8232                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8233                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
8234                 return rc;
8235         }
8236
8237         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8238                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8239         if (rc) {
8240                 pci_disable_msi(phba->pcidev);
8241                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8242                                 "0478 MSI request_irq failed (%d)\n", rc);
8243         }
8244         return rc;
8245 }
8246
8247 /**
8248  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8249  * @phba: pointer to lpfc hba data structure.
8250  *
8251  * This routine is invoked to disable the MSI interrupt mode to device with
8252  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8253  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8254  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8255  * its vector.
8256  */
8257 static void
8258 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8259 {
8260         free_irq(phba->pcidev->irq, phba);
8261         pci_disable_msi(phba->pcidev);
8262         return;
8263 }
8264
8265 /**
8266  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8267  * @phba: pointer to lpfc hba data structure.
8268  *
8269  * This routine is invoked to enable device interrupt and associate driver's
8270  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8271  * spec. Depends on the interrupt mode configured to the driver, the driver
8272  * will try to fallback from the configured interrupt mode to an interrupt
8273  * mode which is supported by the platform, kernel, and device in the order
8274  * of:
8275  * MSI-X -> MSI -> IRQ.
8276  *
8277  * Return codes
8278  *   0 - successful
8279  *   other values - error
8280  **/
8281 static uint32_t
8282 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8283 {
8284         uint32_t intr_mode = LPFC_INTR_ERROR;
8285         int retval;
8286
8287         if (cfg_mode == 2) {
8288                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8289                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8290                 if (!retval) {
8291                         /* Now, try to enable MSI-X interrupt mode */
8292                         retval = lpfc_sli_enable_msix(phba);
8293                         if (!retval) {
8294                                 /* Indicate initialization to MSI-X mode */
8295                                 phba->intr_type = MSIX;
8296                                 intr_mode = 2;
8297                         }
8298                 }
8299         }
8300
8301         /* Fallback to MSI if MSI-X initialization failed */
8302         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8303                 retval = lpfc_sli_enable_msi(phba);
8304                 if (!retval) {
8305                         /* Indicate initialization to MSI mode */
8306                         phba->intr_type = MSI;
8307                         intr_mode = 1;
8308                 }
8309         }
8310
8311         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8312         if (phba->intr_type == NONE) {
8313                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8314                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8315                 if (!retval) {
8316                         /* Indicate initialization to INTx mode */
8317                         phba->intr_type = INTx;
8318                         intr_mode = 0;
8319                 }
8320         }
8321         return intr_mode;
8322 }
8323
8324 /**
8325  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8326  * @phba: pointer to lpfc hba data structure.
8327  *
8328  * This routine is invoked to disable device interrupt and disassociate the
8329  * driver's interrupt handler(s) from interrupt vector(s) to device with
8330  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8331  * release the interrupt vector(s) for the message signaled interrupt.
8332  **/
8333 static void
8334 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8335 {
8336         /* Disable the currently initialized interrupt mode */
8337         if (phba->intr_type == MSIX)
8338                 lpfc_sli_disable_msix(phba);
8339         else if (phba->intr_type == MSI)
8340                 lpfc_sli_disable_msi(phba);
8341         else if (phba->intr_type == INTx)
8342                 free_irq(phba->pcidev->irq, phba);
8343
8344         /* Reset interrupt management states */
8345         phba->intr_type = NONE;
8346         phba->sli.slistat.sli_intr = 0;
8347
8348         return;
8349 }
8350
8351 /**
8352  * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8353  * @phba: pointer to lpfc hba data structure.
8354  *
8355  * Find next available CPU to use for IRQ to CPU affinity.
8356  */
8357 static int
8358 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8359 {
8360         struct lpfc_vector_map_info *cpup;
8361         int cpu;
8362
8363         cpup = phba->sli4_hba.cpu_map;
8364         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8365                 /* CPU must be online */
8366                 if (cpu_online(cpu)) {
8367                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8368                             (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8369                             (cpup->phys_id == phys_id)) {
8370                                 return cpu;
8371                         }
8372                 }
8373                 cpup++;
8374         }
8375
8376         /*
8377          * If we get here, we have used ALL CPUs for the specific
8378          * phys_id. Now we need to clear out lpfc_used_cpu and start
8379          * reusing CPUs.
8380          */
8381
8382         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8383                 if (lpfc_used_cpu[cpu] == phys_id)
8384                         lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8385         }
8386
8387         cpup = phba->sli4_hba.cpu_map;
8388         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8389                 /* CPU must be online */
8390                 if (cpu_online(cpu)) {
8391                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8392                             (cpup->phys_id == phys_id)) {
8393                                 return cpu;
8394                         }
8395                 }
8396                 cpup++;
8397         }
8398         return LPFC_VECTOR_MAP_EMPTY;
8399 }
8400
8401 /**
8402  * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8403  * @phba:       pointer to lpfc hba data structure.
8404  * @vectors:    number of HBA vectors
8405  *
8406  * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8407  * affinization across multple physical CPUs (numa nodes).
8408  * In addition, this routine will assign an IO channel for each CPU
8409  * to use when issuing I/Os.
8410  */
8411 static int
8412 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8413 {
8414         int i, idx, saved_chann, used_chann, cpu, phys_id;
8415         int max_phys_id, num_io_channel, first_cpu;
8416         struct lpfc_vector_map_info *cpup;
8417 #ifdef CONFIG_X86
8418         struct cpuinfo_x86 *cpuinfo;
8419 #endif
8420         struct cpumask *mask;
8421         uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8422
8423         /* If there is no mapping, just return */
8424         if (!phba->cfg_fcp_cpu_map)
8425                 return 1;
8426
8427         /* Init cpu_map array */
8428         memset(phba->sli4_hba.cpu_map, 0xff,
8429                (sizeof(struct lpfc_vector_map_info) *
8430                 phba->sli4_hba.num_present_cpu));
8431
8432         max_phys_id = 0;
8433         phys_id = 0;
8434         num_io_channel = 0;
8435         first_cpu = LPFC_VECTOR_MAP_EMPTY;
8436
8437         /* Update CPU map with physical id and core id of each CPU */
8438         cpup = phba->sli4_hba.cpu_map;
8439         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8440 #ifdef CONFIG_X86
8441                 cpuinfo = &cpu_data(cpu);
8442                 cpup->phys_id = cpuinfo->phys_proc_id;
8443                 cpup->core_id = cpuinfo->cpu_core_id;
8444 #else
8445                 /* No distinction between CPUs for other platforms */
8446                 cpup->phys_id = 0;
8447                 cpup->core_id = 0;
8448 #endif
8449
8450                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8451                                 "3328 CPU physid %d coreid %d\n",
8452                                 cpup->phys_id, cpup->core_id);
8453
8454                 if (cpup->phys_id > max_phys_id)
8455                         max_phys_id = cpup->phys_id;
8456                 cpup++;
8457         }
8458
8459         /* Now associate the HBA vectors with specific CPUs */
8460         for (idx = 0; idx < vectors; idx++) {
8461                 cpup = phba->sli4_hba.cpu_map;
8462                 cpu = lpfc_find_next_cpu(phba, phys_id);
8463                 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8464
8465                         /* Try for all phys_id's */
8466                         for (i = 1; i < max_phys_id; i++) {
8467                                 phys_id++;
8468                                 if (phys_id > max_phys_id)
8469                                         phys_id = 0;
8470                                 cpu = lpfc_find_next_cpu(phba, phys_id);
8471                                 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8472                                         continue;
8473                                 goto found;
8474                         }
8475
8476                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8477                                         "3329 Cannot set affinity:"
8478                                         "Error mapping vector %d (%d)\n",
8479                                         idx, vectors);
8480                         return 0;
8481                 }
8482 found:
8483                 cpup += cpu;
8484                 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8485                         lpfc_used_cpu[cpu] = phys_id;
8486
8487                 /* Associate vector with selected CPU */
8488                 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8489
8490                 /* Associate IO channel with selected CPU */
8491                 cpup->channel_id = idx;
8492                 num_io_channel++;
8493
8494                 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8495                         first_cpu = cpu;
8496
8497                 /* Now affinitize to the selected CPU */
8498                 mask = &cpup->maskbits;
8499                 cpumask_clear(mask);
8500                 cpumask_set_cpu(cpu, mask);
8501                 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8502                                           vector, mask);
8503
8504                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8505                                 "3330 Set Affinity: CPU %d channel %d "
8506                                 "irq %d (%x)\n",
8507                                 cpu, cpup->channel_id,
8508                                 phba->sli4_hba.msix_entries[idx].vector, i);
8509
8510                 /* Spread vector mapping across multple physical CPU nodes */
8511                 phys_id++;
8512                 if (phys_id > max_phys_id)
8513                         phys_id = 0;
8514         }
8515
8516         /*
8517          * Finally fill in the IO channel for any remaining CPUs.
8518          * At this point, all IO channels have been assigned to a specific
8519          * MSIx vector, mapped to a specific CPU.
8520          * Base the remaining IO channel assigned, to IO channels already
8521          * assigned to other CPUs on the same phys_id.
8522          */
8523         for (i = 0; i <= max_phys_id; i++) {
8524                 /*
8525                  * If there are no io channels already mapped to
8526                  * this phys_id, just round robin thru the io_channels.
8527                  * Setup chann[] for round robin.
8528                  */
8529                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8530                         chann[idx] = idx;
8531
8532                 saved_chann = 0;
8533                 used_chann = 0;
8534
8535                 /*
8536                  * First build a list of IO channels already assigned
8537                  * to this phys_id before reassigning the same IO
8538                  * channels to the remaining CPUs.
8539                  */
8540                 cpup = phba->sli4_hba.cpu_map;
8541                 cpu = first_cpu;
8542                 cpup += cpu;
8543                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8544                      idx++) {
8545                         if (cpup->phys_id == i) {
8546                                 /*
8547                                  * Save any IO channels that are
8548                                  * already mapped to this phys_id.
8549                                  */
8550                                 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8551                                         chann[saved_chann] =
8552                                                 cpup->channel_id;
8553                                         saved_chann++;
8554                                         goto out;
8555                                 }
8556
8557                                 /* See if we are using round-robin */
8558                                 if (saved_chann == 0)
8559                                         saved_chann =
8560                                                 phba->cfg_fcp_io_channel;
8561
8562                                 /* Associate next IO channel with CPU */
8563                                 cpup->channel_id = chann[used_chann];
8564                                 num_io_channel++;
8565                                 used_chann++;
8566                                 if (used_chann == saved_chann)
8567                                         used_chann = 0;
8568
8569                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8570                                                 "3331 Set IO_CHANN "
8571                                                 "CPU %d channel %d\n",
8572                                                 idx, cpup->channel_id);
8573                         }
8574 out:
8575                         cpu++;
8576                         if (cpu >= phba->sli4_hba.num_present_cpu) {
8577                                 cpup = phba->sli4_hba.cpu_map;
8578                                 cpu = 0;
8579                         } else {
8580                                 cpup++;
8581                         }
8582                 }
8583         }
8584
8585         if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
8586                 cpup = phba->sli4_hba.cpu_map;
8587                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
8588                         if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
8589                                 cpup->channel_id = 0;
8590                                 num_io_channel++;
8591
8592                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8593                                                 "3332 Assign IO_CHANN "
8594                                                 "CPU %d channel %d\n",
8595                                                 idx, cpup->channel_id);
8596                         }
8597                         cpup++;
8598                 }
8599         }
8600
8601         /* Sanity check */
8602         if (num_io_channel != phba->sli4_hba.num_present_cpu)
8603                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8604                                 "3333 Set affinity mismatch:"
8605                                 "%d chann != %d cpus: %d vactors\n",
8606                                 num_io_channel, phba->sli4_hba.num_present_cpu,
8607                                 vectors);
8608
8609         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
8610         return 1;
8611 }
8612
8613
8614 /**
8615  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8616  * @phba: pointer to lpfc hba data structure.
8617  *
8618  * This routine is invoked to enable the MSI-X interrupt vectors to device
8619  * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
8620  * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
8621  * enables either all or nothing, depending on the current availability of
8622  * PCI vector resources. The device driver is responsible for calling the
8623  * individual request_irq() to register each MSI-X vector with a interrupt
8624  * handler, which is done in this function. Note that later when device is
8625  * unloading, the driver should always call free_irq() on all MSI-X vectors
8626  * it has done request_irq() on before calling pci_disable_msix(). Failure
8627  * to do so results in a BUG_ON() and a device will be left with MSI-X
8628  * enabled and leaks its vectors.
8629  *
8630  * Return codes
8631  * 0 - successful
8632  * other values - error
8633  **/
8634 static int
8635 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8636 {
8637         int vectors, rc, index;
8638
8639         /* Set up MSI-X multi-message vectors */
8640         for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8641                 phba->sli4_hba.msix_entries[index].entry = index;
8642
8643         /* Configure MSI-X capability structure */
8644         vectors = phba->cfg_fcp_io_channel;
8645 enable_msix_vectors:
8646         rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
8647                              vectors);
8648         if (rc > 1) {
8649                 vectors = rc;
8650                 goto enable_msix_vectors;
8651         } else if (rc) {
8652                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8653                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
8654                 goto msi_fail_out;
8655         }
8656
8657         /* Log MSI-X vector assignment */
8658         for (index = 0; index < vectors; index++)
8659                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8660                                 "0489 MSI-X entry[%d]: vector=x%x "
8661                                 "message=%d\n", index,
8662                                 phba->sli4_hba.msix_entries[index].vector,
8663                                 phba->sli4_hba.msix_entries[index].entry);
8664
8665         /* Assign MSI-X vectors to interrupt handlers */
8666         for (index = 0; index < vectors; index++) {
8667                 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8668                 sprintf((char *)&phba->sli4_hba.handler_name[index],
8669                          LPFC_DRIVER_HANDLER_NAME"%d", index);
8670
8671                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8672                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8673                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8674                 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
8675                                  &lpfc_sli4_hba_intr_handler, IRQF_SHARED,
8676                                  (char *)&phba->sli4_hba.handler_name[index],
8677                                  &phba->sli4_hba.fcp_eq_hdl[index]);
8678                 if (rc) {
8679                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8680                                         "0486 MSI-X fast-path (%d) "
8681                                         "request_irq failed (%d)\n", index, rc);
8682                         goto cfg_fail_out;
8683                 }
8684         }
8685
8686         if (vectors != phba->cfg_fcp_io_channel) {
8687                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8688                                 "3238 Reducing IO channels to match number of "
8689                                 "MSI-X vectors, requested %d got %d\n",
8690                                 phba->cfg_fcp_io_channel, vectors);
8691                 phba->cfg_fcp_io_channel = vectors;
8692         }
8693
8694         lpfc_sli4_set_affinity(phba, vectors);
8695         return rc;
8696
8697 cfg_fail_out:
8698         /* free the irq already requested */
8699         for (--index; index >= 0; index--)
8700                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8701                          &phba->sli4_hba.fcp_eq_hdl[index]);
8702
8703 msi_fail_out:
8704         /* Unconfigure MSI-X capability structure */
8705         pci_disable_msix(phba->pcidev);
8706         return rc;
8707 }
8708
8709 /**
8710  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
8711  * @phba: pointer to lpfc hba data structure.
8712  *
8713  * This routine is invoked to release the MSI-X vectors and then disable the
8714  * MSI-X interrupt mode to device with SLI-4 interface spec.
8715  **/
8716 static void
8717 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
8718 {
8719         int index;
8720
8721         /* Free up MSI-X multi-message vectors */
8722         for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8723                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8724                          &phba->sli4_hba.fcp_eq_hdl[index]);
8725
8726         /* Disable MSI-X */
8727         pci_disable_msix(phba->pcidev);
8728
8729         return;
8730 }
8731
8732 /**
8733  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
8734  * @phba: pointer to lpfc hba data structure.
8735  *
8736  * This routine is invoked to enable the MSI interrupt mode to device with
8737  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
8738  * to enable the MSI vector. The device driver is responsible for calling
8739  * the request_irq() to register MSI vector with a interrupt the handler,
8740  * which is done in this function.
8741  *
8742  * Return codes
8743  *      0 - successful
8744  *      other values - error
8745  **/
8746 static int
8747 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
8748 {
8749         int rc, index;
8750
8751         rc = pci_enable_msi(phba->pcidev);
8752         if (!rc)
8753                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8754                                 "0487 PCI enable MSI mode success.\n");
8755         else {
8756                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8757                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
8758                 return rc;
8759         }
8760
8761         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8762                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8763         if (rc) {
8764                 pci_disable_msi(phba->pcidev);
8765                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8766                                 "0490 MSI request_irq failed (%d)\n", rc);
8767                 return rc;
8768         }
8769
8770         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
8771                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8772                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8773         }
8774
8775         return 0;
8776 }
8777
8778 /**
8779  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
8780  * @phba: pointer to lpfc hba data structure.
8781  *
8782  * This routine is invoked to disable the MSI interrupt mode to device with
8783  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
8784  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8785  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8786  * its vector.
8787  **/
8788 static void
8789 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
8790 {
8791         free_irq(phba->pcidev->irq, phba);
8792         pci_disable_msi(phba->pcidev);
8793         return;
8794 }
8795
8796 /**
8797  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
8798  * @phba: pointer to lpfc hba data structure.
8799  *
8800  * This routine is invoked to enable device interrupt and associate driver's
8801  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
8802  * interface spec. Depends on the interrupt mode configured to the driver,
8803  * the driver will try to fallback from the configured interrupt mode to an
8804  * interrupt mode which is supported by the platform, kernel, and device in
8805  * the order of:
8806  * MSI-X -> MSI -> IRQ.
8807  *
8808  * Return codes
8809  *      0 - successful
8810  *      other values - error
8811  **/
8812 static uint32_t
8813 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8814 {
8815         uint32_t intr_mode = LPFC_INTR_ERROR;
8816         int retval, index;
8817
8818         if (cfg_mode == 2) {
8819                 /* Preparation before conf_msi mbox cmd */
8820                 retval = 0;
8821                 if (!retval) {
8822                         /* Now, try to enable MSI-X interrupt mode */
8823                         retval = lpfc_sli4_enable_msix(phba);
8824                         if (!retval) {
8825                                 /* Indicate initialization to MSI-X mode */
8826                                 phba->intr_type = MSIX;
8827                                 intr_mode = 2;
8828                         }
8829                 }
8830         }
8831
8832         /* Fallback to MSI if MSI-X initialization failed */
8833         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8834                 retval = lpfc_sli4_enable_msi(phba);
8835                 if (!retval) {
8836                         /* Indicate initialization to MSI mode */
8837                         phba->intr_type = MSI;
8838                         intr_mode = 1;
8839                 }
8840         }
8841
8842         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8843         if (phba->intr_type == NONE) {
8844                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8845                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8846                 if (!retval) {
8847                         /* Indicate initialization to INTx mode */
8848                         phba->intr_type = INTx;
8849                         intr_mode = 0;
8850                         for (index = 0; index < phba->cfg_fcp_io_channel;
8851                              index++) {
8852                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8853                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8854                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
8855                                         fcp_eq_in_use, 1);
8856                         }
8857                 }
8858         }
8859         return intr_mode;
8860 }
8861
8862 /**
8863  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
8864  * @phba: pointer to lpfc hba data structure.
8865  *
8866  * This routine is invoked to disable device interrupt and disassociate
8867  * the driver's interrupt handler(s) from interrupt vector(s) to device
8868  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
8869  * will release the interrupt vector(s) for the message signaled interrupt.
8870  **/
8871 static void
8872 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
8873 {
8874         /* Disable the currently initialized interrupt mode */
8875         if (phba->intr_type == MSIX)
8876                 lpfc_sli4_disable_msix(phba);
8877         else if (phba->intr_type == MSI)
8878                 lpfc_sli4_disable_msi(phba);
8879         else if (phba->intr_type == INTx)
8880                 free_irq(phba->pcidev->irq, phba);
8881
8882         /* Reset interrupt management states */
8883         phba->intr_type = NONE;
8884         phba->sli.slistat.sli_intr = 0;
8885
8886         return;
8887 }
8888
8889 /**
8890  * lpfc_unset_hba - Unset SLI3 hba device initialization
8891  * @phba: pointer to lpfc hba data structure.
8892  *
8893  * This routine is invoked to unset the HBA device initialization steps to
8894  * a device with SLI-3 interface spec.
8895  **/
8896 static void
8897 lpfc_unset_hba(struct lpfc_hba *phba)
8898 {
8899         struct lpfc_vport *vport = phba->pport;
8900         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
8901
8902         spin_lock_irq(shost->host_lock);
8903         vport->load_flag |= FC_UNLOADING;
8904         spin_unlock_irq(shost->host_lock);
8905
8906         kfree(phba->vpi_bmask);
8907         kfree(phba->vpi_ids);
8908
8909         lpfc_stop_hba_timers(phba);
8910
8911         phba->pport->work_port_events = 0;
8912
8913         lpfc_sli_hba_down(phba);
8914
8915         lpfc_sli_brdrestart(phba);
8916
8917         lpfc_sli_disable_intr(phba);
8918
8919         return;
8920 }
8921
8922 /**
8923  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
8924  * @phba: Pointer to HBA context object.
8925  *
8926  * This function is called in the SLI4 code path to wait for completion
8927  * of device's XRIs exchange busy. It will check the XRI exchange busy
8928  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
8929  * that, it will check the XRI exchange busy on outstanding FCP and ELS
8930  * I/Os every 30 seconds, log error message, and wait forever. Only when
8931  * all XRI exchange busy complete, the driver unload shall proceed with
8932  * invoking the function reset ioctl mailbox command to the CNA and the
8933  * the rest of the driver unload resource release.
8934  **/
8935 static void
8936 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
8937 {
8938         int wait_time = 0;
8939         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8940         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8941
8942         while (!fcp_xri_cmpl || !els_xri_cmpl) {
8943                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
8944                         if (!fcp_xri_cmpl)
8945                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8946                                                 "2877 FCP XRI exchange busy "
8947                                                 "wait time: %d seconds.\n",
8948                                                 wait_time/1000);
8949                         if (!els_xri_cmpl)
8950                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8951                                                 "2878 ELS XRI exchange busy "
8952                                                 "wait time: %d seconds.\n",
8953                                                 wait_time/1000);
8954                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
8955                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
8956                 } else {
8957                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
8958                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
8959                 }
8960                 fcp_xri_cmpl =
8961                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8962                 els_xri_cmpl =
8963                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8964         }
8965 }
8966
8967 /**
8968  * lpfc_sli4_hba_unset - Unset the fcoe hba
8969  * @phba: Pointer to HBA context object.
8970  *
8971  * This function is called in the SLI4 code path to reset the HBA's FCoE
8972  * function. The caller is not required to hold any lock. This routine
8973  * issues PCI function reset mailbox command to reset the FCoE function.
8974  * At the end of the function, it calls lpfc_hba_down_post function to
8975  * free any pending commands.
8976  **/
8977 static void
8978 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8979 {
8980         int wait_cnt = 0;
8981         LPFC_MBOXQ_t *mboxq;
8982         struct pci_dev *pdev = phba->pcidev;
8983
8984         lpfc_stop_hba_timers(phba);
8985         phba->sli4_hba.intr_enable = 0;
8986
8987         /*
8988          * Gracefully wait out the potential current outstanding asynchronous
8989          * mailbox command.
8990          */
8991
8992         /* First, block any pending async mailbox command from posted */
8993         spin_lock_irq(&phba->hbalock);
8994         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8995         spin_unlock_irq(&phba->hbalock);
8996         /* Now, trying to wait it out if we can */
8997         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8998                 msleep(10);
8999                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
9000                         break;
9001         }
9002         /* Forcefully release the outstanding mailbox command if timed out */
9003         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9004                 spin_lock_irq(&phba->hbalock);
9005                 mboxq = phba->sli.mbox_active;
9006                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9007                 __lpfc_mbox_cmpl_put(phba, mboxq);
9008                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9009                 phba->sli.mbox_active = NULL;
9010                 spin_unlock_irq(&phba->hbalock);
9011         }
9012
9013         /* Abort all iocbs associated with the hba */
9014         lpfc_sli_hba_iocb_abort(phba);
9015
9016         /* Wait for completion of device XRI exchange busy */
9017         lpfc_sli4_xri_exchange_busy_wait(phba);
9018
9019         /* Disable PCI subsystem interrupt */
9020         lpfc_sli4_disable_intr(phba);
9021
9022         /* Disable SR-IOV if enabled */
9023         if (phba->cfg_sriov_nr_virtfn)
9024                 pci_disable_sriov(pdev);
9025
9026         /* Stop kthread signal shall trigger work_done one more time */
9027         kthread_stop(phba->worker_thread);
9028
9029         /* Reset SLI4 HBA FCoE function */
9030         lpfc_pci_function_reset(phba);
9031         lpfc_sli4_queue_destroy(phba);
9032
9033         /* Stop the SLI4 device port */
9034         phba->pport->work_port_events = 0;
9035 }
9036
9037  /**
9038  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9039  * @phba: Pointer to HBA context object.
9040  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9041  *
9042  * This function is called in the SLI4 code path to read the port's
9043  * sli4 capabilities.
9044  *
9045  * This function may be be called from any context that can block-wait
9046  * for the completion.  The expectation is that this routine is called
9047  * typically from probe_one or from the online routine.
9048  **/
9049 int
9050 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9051 {
9052         int rc;
9053         struct lpfc_mqe *mqe;
9054         struct lpfc_pc_sli4_params *sli4_params;
9055         uint32_t mbox_tmo;
9056
9057         rc = 0;
9058         mqe = &mboxq->u.mqe;
9059
9060         /* Read the port's SLI4 Parameters port capabilities */
9061         lpfc_pc_sli4_params(mboxq);
9062         if (!phba->sli4_hba.intr_enable)
9063                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9064         else {
9065                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9066                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9067         }
9068
9069         if (unlikely(rc))
9070                 return 1;
9071
9072         sli4_params = &phba->sli4_hba.pc_sli4_params;
9073         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9074         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9075         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9076         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9077                                              &mqe->un.sli4_params);
9078         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9079                                              &mqe->un.sli4_params);
9080         sli4_params->proto_types = mqe->un.sli4_params.word3;
9081         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9082         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9083         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9084         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9085         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9086         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9087         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9088         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9089         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9090         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9091         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9092         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9093         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9094         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9095         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9096         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9097         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9098         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9099         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9100         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
9101
9102         /* Make sure that sge_supp_len can be handled by the driver */
9103         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9104                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9105
9106         return rc;
9107 }
9108
9109 /**
9110  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9111  * @phba: Pointer to HBA context object.
9112  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9113  *
9114  * This function is called in the SLI4 code path to read the port's
9115  * sli4 capabilities.
9116  *
9117  * This function may be be called from any context that can block-wait
9118  * for the completion.  The expectation is that this routine is called
9119  * typically from probe_one or from the online routine.
9120  **/
9121 int
9122 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9123 {
9124         int rc;
9125         struct lpfc_mqe *mqe = &mboxq->u.mqe;
9126         struct lpfc_pc_sli4_params *sli4_params;
9127         uint32_t mbox_tmo;
9128         int length;
9129         struct lpfc_sli4_parameters *mbx_sli4_parameters;
9130
9131         /*
9132          * By default, the driver assumes the SLI4 port requires RPI
9133          * header postings.  The SLI4_PARAM response will correct this
9134          * assumption.
9135          */
9136         phba->sli4_hba.rpi_hdrs_in_use = 1;
9137
9138         /* Read the port's SLI4 Config Parameters */
9139         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9140                   sizeof(struct lpfc_sli4_cfg_mhdr));
9141         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9142                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9143                          length, LPFC_SLI4_MBX_EMBED);
9144         if (!phba->sli4_hba.intr_enable)
9145                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9146         else {
9147                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9148                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9149         }
9150         if (unlikely(rc))
9151                 return rc;
9152         sli4_params = &phba->sli4_hba.pc_sli4_params;
9153         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9154         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9155         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9156         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9157         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9158                                              mbx_sli4_parameters);
9159         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9160                                              mbx_sli4_parameters);
9161         if (bf_get(cfg_phwq, mbx_sli4_parameters))
9162                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9163         else
9164                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9165         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9166         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
9167         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9168         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9169         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9170         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
9171         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9172                                             mbx_sli4_parameters);
9173         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9174                                            mbx_sli4_parameters);
9175         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9176         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
9177
9178         /* Make sure that sge_supp_len can be handled by the driver */
9179         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9180                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9181
9182         return 0;
9183 }
9184
9185 /**
9186  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9187  * @pdev: pointer to PCI device
9188  * @pid: pointer to PCI device identifier
9189  *
9190  * This routine is to be called to attach a device with SLI-3 interface spec
9191  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9192  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9193  * information of the device and driver to see if the driver state that it can
9194  * support this kind of device. If the match is successful, the driver core
9195  * invokes this routine. If this routine determines it can claim the HBA, it
9196  * does all the initialization that it needs to do to handle the HBA properly.
9197  *
9198  * Return code
9199  *      0 - driver can claim the device
9200  *      negative value - driver can not claim the device
9201  **/
9202 static int
9203 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9204 {
9205         struct lpfc_hba   *phba;
9206         struct lpfc_vport *vport = NULL;
9207         struct Scsi_Host  *shost = NULL;
9208         int error;
9209         uint32_t cfg_mode, intr_mode;
9210
9211         /* Allocate memory for HBA structure */
9212         phba = lpfc_hba_alloc(pdev);
9213         if (!phba)
9214                 return -ENOMEM;
9215
9216         /* Perform generic PCI device enabling operation */
9217         error = lpfc_enable_pci_dev(phba);
9218         if (error)
9219                 goto out_free_phba;
9220
9221         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9222         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9223         if (error)
9224                 goto out_disable_pci_dev;
9225
9226         /* Set up SLI-3 specific device PCI memory space */
9227         error = lpfc_sli_pci_mem_setup(phba);
9228         if (error) {
9229                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9230                                 "1402 Failed to set up pci memory space.\n");
9231                 goto out_disable_pci_dev;
9232         }
9233
9234         /* Set up phase-1 common device driver resources */
9235         error = lpfc_setup_driver_resource_phase1(phba);
9236         if (error) {
9237                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9238                                 "1403 Failed to set up driver resource.\n");
9239                 goto out_unset_pci_mem_s3;
9240         }
9241
9242         /* Set up SLI-3 specific device driver resources */
9243         error = lpfc_sli_driver_resource_setup(phba);
9244         if (error) {
9245                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9246                                 "1404 Failed to set up driver resource.\n");
9247                 goto out_unset_pci_mem_s3;
9248         }
9249
9250         /* Initialize and populate the iocb list per host */
9251         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9252         if (error) {
9253                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9254                                 "1405 Failed to initialize iocb list.\n");
9255                 goto out_unset_driver_resource_s3;
9256         }
9257
9258         /* Set up common device driver resources */
9259         error = lpfc_setup_driver_resource_phase2(phba);
9260         if (error) {
9261                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9262                                 "1406 Failed to set up driver resource.\n");
9263                 goto out_free_iocb_list;
9264         }
9265
9266         /* Get the default values for Model Name and Description */
9267         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9268
9269         /* Create SCSI host to the physical port */
9270         error = lpfc_create_shost(phba);
9271         if (error) {
9272                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9273                                 "1407 Failed to create scsi host.\n");
9274                 goto out_unset_driver_resource;
9275         }
9276
9277         /* Configure sysfs attributes */
9278         vport = phba->pport;
9279         error = lpfc_alloc_sysfs_attr(vport);
9280         if (error) {
9281                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9282                                 "1476 Failed to allocate sysfs attr\n");
9283                 goto out_destroy_shost;
9284         }
9285
9286         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9287         /* Now, trying to enable interrupt and bring up the device */
9288         cfg_mode = phba->cfg_use_msi;
9289         while (true) {
9290                 /* Put device to a known state before enabling interrupt */
9291                 lpfc_stop_port(phba);
9292                 /* Configure and enable interrupt */
9293                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9294                 if (intr_mode == LPFC_INTR_ERROR) {
9295                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9296                                         "0431 Failed to enable interrupt.\n");
9297                         error = -ENODEV;
9298                         goto out_free_sysfs_attr;
9299                 }
9300                 /* SLI-3 HBA setup */
9301                 if (lpfc_sli_hba_setup(phba)) {
9302                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9303                                         "1477 Failed to set up hba\n");
9304                         error = -ENODEV;
9305                         goto out_remove_device;
9306                 }
9307
9308                 /* Wait 50ms for the interrupts of previous mailbox commands */
9309                 msleep(50);
9310                 /* Check active interrupts on message signaled interrupts */
9311                 if (intr_mode == 0 ||
9312                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9313                         /* Log the current active interrupt mode */
9314                         phba->intr_mode = intr_mode;
9315                         lpfc_log_intr_mode(phba, intr_mode);
9316                         break;
9317                 } else {
9318                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9319                                         "0447 Configure interrupt mode (%d) "
9320                                         "failed active interrupt test.\n",
9321                                         intr_mode);
9322                         /* Disable the current interrupt mode */
9323                         lpfc_sli_disable_intr(phba);
9324                         /* Try next level of interrupt mode */
9325                         cfg_mode = --intr_mode;
9326                 }
9327         }
9328
9329         /* Perform post initialization setup */
9330         lpfc_post_init_setup(phba);
9331
9332         /* Check if there are static vports to be created. */
9333         lpfc_create_static_vport(phba);
9334
9335         return 0;
9336
9337 out_remove_device:
9338         lpfc_unset_hba(phba);
9339 out_free_sysfs_attr:
9340         lpfc_free_sysfs_attr(vport);
9341 out_destroy_shost:
9342         lpfc_destroy_shost(phba);
9343 out_unset_driver_resource:
9344         lpfc_unset_driver_resource_phase2(phba);
9345 out_free_iocb_list:
9346         lpfc_free_iocb_list(phba);
9347 out_unset_driver_resource_s3:
9348         lpfc_sli_driver_resource_unset(phba);
9349 out_unset_pci_mem_s3:
9350         lpfc_sli_pci_mem_unset(phba);
9351 out_disable_pci_dev:
9352         lpfc_disable_pci_dev(phba);
9353         if (shost)
9354                 scsi_host_put(shost);
9355 out_free_phba:
9356         lpfc_hba_free(phba);
9357         return error;
9358 }
9359
9360 /**
9361  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9362  * @pdev: pointer to PCI device
9363  *
9364  * This routine is to be called to disattach a device with SLI-3 interface
9365  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9366  * removed from PCI bus, it performs all the necessary cleanup for the HBA
9367  * device to be removed from the PCI subsystem properly.
9368  **/
9369 static void
9370 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9371 {
9372         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
9373         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9374         struct lpfc_vport **vports;
9375         struct lpfc_hba   *phba = vport->phba;
9376         int i;
9377         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
9378
9379         spin_lock_irq(&phba->hbalock);
9380         vport->load_flag |= FC_UNLOADING;
9381         spin_unlock_irq(&phba->hbalock);
9382
9383         lpfc_free_sysfs_attr(vport);
9384
9385         /* Release all the vports against this physical port */
9386         vports = lpfc_create_vport_work_array(phba);
9387         if (vports != NULL)
9388                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9389                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9390                                 continue;
9391                         fc_vport_terminate(vports[i]->fc_vport);
9392                 }
9393         lpfc_destroy_vport_work_array(phba, vports);
9394
9395         /* Remove FC host and then SCSI host with the physical port */
9396         fc_remove_host(shost);
9397         scsi_remove_host(shost);
9398         lpfc_cleanup(vport);
9399
9400         /*
9401          * Bring down the SLI Layer. This step disable all interrupts,
9402          * clears the rings, discards all mailbox commands, and resets
9403          * the HBA.
9404          */
9405
9406         /* HBA interrupt will be disabled after this call */
9407         lpfc_sli_hba_down(phba);
9408         /* Stop kthread signal shall trigger work_done one more time */
9409         kthread_stop(phba->worker_thread);
9410         /* Final cleanup of txcmplq and reset the HBA */
9411         lpfc_sli_brdrestart(phba);
9412
9413         kfree(phba->vpi_bmask);
9414         kfree(phba->vpi_ids);
9415
9416         lpfc_stop_hba_timers(phba);
9417         spin_lock_irq(&phba->hbalock);
9418         list_del_init(&vport->listentry);
9419         spin_unlock_irq(&phba->hbalock);
9420
9421         lpfc_debugfs_terminate(vport);
9422
9423         /* Disable SR-IOV if enabled */
9424         if (phba->cfg_sriov_nr_virtfn)
9425                 pci_disable_sriov(pdev);
9426
9427         /* Disable interrupt */
9428         lpfc_sli_disable_intr(phba);
9429
9430         pci_set_drvdata(pdev, NULL);
9431         scsi_host_put(shost);
9432
9433         /*
9434          * Call scsi_free before mem_free since scsi bufs are released to their
9435          * corresponding pools here.
9436          */
9437         lpfc_scsi_free(phba);
9438         lpfc_mem_free_all(phba);
9439
9440         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9441                           phba->hbqslimp.virt, phba->hbqslimp.phys);
9442
9443         /* Free resources associated with SLI2 interface */
9444         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9445                           phba->slim2p.virt, phba->slim2p.phys);
9446
9447         /* unmap adapter SLIM and Control Registers */
9448         iounmap(phba->ctrl_regs_memmap_p);
9449         iounmap(phba->slim_memmap_p);
9450
9451         lpfc_hba_free(phba);
9452
9453         pci_release_selected_regions(pdev, bars);
9454         pci_disable_device(pdev);
9455 }
9456
9457 /**
9458  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9459  * @pdev: pointer to PCI device
9460  * @msg: power management message
9461  *
9462  * This routine is to be called from the kernel's PCI subsystem to support
9463  * system Power Management (PM) to device with SLI-3 interface spec. When
9464  * PM invokes this method, it quiesces the device by stopping the driver's
9465  * worker thread for the device, turning off device's interrupt and DMA,
9466  * and bring the device offline. Note that as the driver implements the
9467  * minimum PM requirements to a power-aware driver's PM support for the
9468  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9469  * to the suspend() method call will be treated as SUSPEND and the driver will
9470  * fully reinitialize its device during resume() method call, the driver will
9471  * set device to PCI_D3hot state in PCI config space instead of setting it
9472  * according to the @msg provided by the PM.
9473  *
9474  * Return code
9475  *      0 - driver suspended the device
9476  *      Error otherwise
9477  **/
9478 static int
9479 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9480 {
9481         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9482         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9483
9484         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9485                         "0473 PCI device Power Management suspend.\n");
9486
9487         /* Bring down the device */
9488         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9489         lpfc_offline(phba);
9490         kthread_stop(phba->worker_thread);
9491
9492         /* Disable interrupt from device */
9493         lpfc_sli_disable_intr(phba);
9494
9495         /* Save device state to PCI config space */
9496         pci_save_state(pdev);
9497         pci_set_power_state(pdev, PCI_D3hot);
9498
9499         return 0;
9500 }
9501
9502 /**
9503  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9504  * @pdev: pointer to PCI device
9505  *
9506  * This routine is to be called from the kernel's PCI subsystem to support
9507  * system Power Management (PM) to device with SLI-3 interface spec. When PM
9508  * invokes this method, it restores the device's PCI config space state and
9509  * fully reinitializes the device and brings it online. Note that as the
9510  * driver implements the minimum PM requirements to a power-aware driver's
9511  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9512  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9513  * driver will fully reinitialize its device during resume() method call,
9514  * the device will be set to PCI_D0 directly in PCI config space before
9515  * restoring the state.
9516  *
9517  * Return code
9518  *      0 - driver suspended the device
9519  *      Error otherwise
9520  **/
9521 static int
9522 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9523 {
9524         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9525         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9526         uint32_t intr_mode;
9527         int error;
9528
9529         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9530                         "0452 PCI device Power Management resume.\n");
9531
9532         /* Restore device state from PCI config space */
9533         pci_set_power_state(pdev, PCI_D0);
9534         pci_restore_state(pdev);
9535
9536         /*
9537          * As the new kernel behavior of pci_restore_state() API call clears
9538          * device saved_state flag, need to save the restored state again.
9539          */
9540         pci_save_state(pdev);
9541
9542         if (pdev->is_busmaster)
9543                 pci_set_master(pdev);
9544
9545         /* Startup the kernel thread for this host adapter. */
9546         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9547                                         "lpfc_worker_%d", phba->brd_no);
9548         if (IS_ERR(phba->worker_thread)) {
9549                 error = PTR_ERR(phba->worker_thread);
9550                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9551                                 "0434 PM resume failed to start worker "
9552                                 "thread: error=x%x.\n", error);
9553                 return error;
9554         }
9555
9556         /* Configure and enable interrupt */
9557         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9558         if (intr_mode == LPFC_INTR_ERROR) {
9559                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9560                                 "0430 PM resume Failed to enable interrupt\n");
9561                 return -EIO;
9562         } else
9563                 phba->intr_mode = intr_mode;
9564
9565         /* Restart HBA and bring it online */
9566         lpfc_sli_brdrestart(phba);
9567         lpfc_online(phba);
9568
9569         /* Log the current active interrupt mode */
9570         lpfc_log_intr_mode(phba, phba->intr_mode);
9571
9572         return 0;
9573 }
9574
9575 /**
9576  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9577  * @phba: pointer to lpfc hba data structure.
9578  *
9579  * This routine is called to prepare the SLI3 device for PCI slot recover. It
9580  * aborts all the outstanding SCSI I/Os to the pci device.
9581  **/
9582 static void
9583 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9584 {
9585         struct lpfc_sli *psli = &phba->sli;
9586         struct lpfc_sli_ring  *pring;
9587
9588         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9589                         "2723 PCI channel I/O abort preparing for recovery\n");
9590
9591         /*
9592          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9593          * and let the SCSI mid-layer to retry them to recover.
9594          */
9595         pring = &psli->ring[psli->fcp_ring];
9596         lpfc_sli_abort_iocb_ring(phba, pring);
9597 }
9598
9599 /**
9600  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9601  * @phba: pointer to lpfc hba data structure.
9602  *
9603  * This routine is called to prepare the SLI3 device for PCI slot reset. It
9604  * disables the device interrupt and pci device, and aborts the internal FCP
9605  * pending I/Os.
9606  **/
9607 static void
9608 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9609 {
9610         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9611                         "2710 PCI channel disable preparing for reset\n");
9612
9613         /* Block any management I/Os to the device */
9614         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9615
9616         /* Block all SCSI devices' I/Os on the host */
9617         lpfc_scsi_dev_block(phba);
9618
9619         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9620         lpfc_sli_flush_fcp_rings(phba);
9621
9622         /* stop all timers */
9623         lpfc_stop_hba_timers(phba);
9624
9625         /* Disable interrupt and pci device */
9626         lpfc_sli_disable_intr(phba);
9627         pci_disable_device(phba->pcidev);
9628 }
9629
9630 /**
9631  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9632  * @phba: pointer to lpfc hba data structure.
9633  *
9634  * This routine is called to prepare the SLI3 device for PCI slot permanently
9635  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9636  * pending I/Os.
9637  **/
9638 static void
9639 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9640 {
9641         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9642                         "2711 PCI channel permanent disable for failure\n");
9643         /* Block all SCSI devices' I/Os on the host */
9644         lpfc_scsi_dev_block(phba);
9645
9646         /* stop all timers */
9647         lpfc_stop_hba_timers(phba);
9648
9649         /* Clean up all driver's outstanding SCSI I/Os */
9650         lpfc_sli_flush_fcp_rings(phba);
9651 }
9652
9653 /**
9654  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9655  * @pdev: pointer to PCI device.
9656  * @state: the current PCI connection state.
9657  *
9658  * This routine is called from the PCI subsystem for I/O error handling to
9659  * device with SLI-3 interface spec. This function is called by the PCI
9660  * subsystem after a PCI bus error affecting this device has been detected.
9661  * When this function is invoked, it will need to stop all the I/Os and
9662  * interrupt(s) to the device. Once that is done, it will return
9663  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9664  * as desired.
9665  *
9666  * Return codes
9667  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9668  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9669  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9670  **/
9671 static pci_ers_result_t
9672 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9673 {
9674         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9675         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9676
9677         switch (state) {
9678         case pci_channel_io_normal:
9679                 /* Non-fatal error, prepare for recovery */
9680                 lpfc_sli_prep_dev_for_recover(phba);
9681                 return PCI_ERS_RESULT_CAN_RECOVER;
9682         case pci_channel_io_frozen:
9683                 /* Fatal error, prepare for slot reset */
9684                 lpfc_sli_prep_dev_for_reset(phba);
9685                 return PCI_ERS_RESULT_NEED_RESET;
9686         case pci_channel_io_perm_failure:
9687                 /* Permanent failure, prepare for device down */
9688                 lpfc_sli_prep_dev_for_perm_failure(phba);
9689                 return PCI_ERS_RESULT_DISCONNECT;
9690         default:
9691                 /* Unknown state, prepare and request slot reset */
9692                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9693                                 "0472 Unknown PCI error state: x%x\n", state);
9694                 lpfc_sli_prep_dev_for_reset(phba);
9695                 return PCI_ERS_RESULT_NEED_RESET;
9696         }
9697 }
9698
9699 /**
9700  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
9701  * @pdev: pointer to PCI device.
9702  *
9703  * This routine is called from the PCI subsystem for error handling to
9704  * device with SLI-3 interface spec. This is called after PCI bus has been
9705  * reset to restart the PCI card from scratch, as if from a cold-boot.
9706  * During the PCI subsystem error recovery, after driver returns
9707  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9708  * recovery and then call this routine before calling the .resume method
9709  * to recover the device. This function will initialize the HBA device,
9710  * enable the interrupt, but it will just put the HBA to offline state
9711  * without passing any I/O traffic.
9712  *
9713  * Return codes
9714  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9715  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9716  */
9717 static pci_ers_result_t
9718 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
9719 {
9720         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9721         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9722         struct lpfc_sli *psli = &phba->sli;
9723         uint32_t intr_mode;
9724
9725         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9726         if (pci_enable_device_mem(pdev)) {
9727                 printk(KERN_ERR "lpfc: Cannot re-enable "
9728                         "PCI device after reset.\n");
9729                 return PCI_ERS_RESULT_DISCONNECT;
9730         }
9731
9732         pci_restore_state(pdev);
9733
9734         /*
9735          * As the new kernel behavior of pci_restore_state() API call clears
9736          * device saved_state flag, need to save the restored state again.
9737          */
9738         pci_save_state(pdev);
9739
9740         if (pdev->is_busmaster)
9741                 pci_set_master(pdev);
9742
9743         spin_lock_irq(&phba->hbalock);
9744         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9745         spin_unlock_irq(&phba->hbalock);
9746
9747         /* Configure and enable interrupt */
9748         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9749         if (intr_mode == LPFC_INTR_ERROR) {
9750                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9751                                 "0427 Cannot re-enable interrupt after "
9752                                 "slot reset.\n");
9753                 return PCI_ERS_RESULT_DISCONNECT;
9754         } else
9755                 phba->intr_mode = intr_mode;
9756
9757         /* Take device offline, it will perform cleanup */
9758         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9759         lpfc_offline(phba);
9760         lpfc_sli_brdrestart(phba);
9761
9762         /* Log the current active interrupt mode */
9763         lpfc_log_intr_mode(phba, phba->intr_mode);
9764
9765         return PCI_ERS_RESULT_RECOVERED;
9766 }
9767
9768 /**
9769  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
9770  * @pdev: pointer to PCI device
9771  *
9772  * This routine is called from the PCI subsystem for error handling to device
9773  * with SLI-3 interface spec. It is called when kernel error recovery tells
9774  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9775  * error recovery. After this call, traffic can start to flow from this device
9776  * again.
9777  */
9778 static void
9779 lpfc_io_resume_s3(struct pci_dev *pdev)
9780 {
9781         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9782         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9783
9784         /* Bring device online, it will be no-op for non-fatal error resume */
9785         lpfc_online(phba);
9786
9787         /* Clean up Advanced Error Reporting (AER) if needed */
9788         if (phba->hba_flag & HBA_AER_ENABLED)
9789                 pci_cleanup_aer_uncorrect_error_status(pdev);
9790 }
9791
9792 /**
9793  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
9794  * @phba: pointer to lpfc hba data structure.
9795  *
9796  * returns the number of ELS/CT IOCBs to reserve
9797  **/
9798 int
9799 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
9800 {
9801         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
9802
9803         if (phba->sli_rev == LPFC_SLI_REV4) {
9804                 if (max_xri <= 100)
9805                         return 10;
9806                 else if (max_xri <= 256)
9807                         return 25;
9808                 else if (max_xri <= 512)
9809                         return 50;
9810                 else if (max_xri <= 1024)
9811                         return 100;
9812                 else if (max_xri <= 1536)
9813                         return 150;
9814                 else if (max_xri <= 2048)
9815                         return 200;
9816                 else
9817                         return 250;
9818         } else
9819                 return 0;
9820 }
9821
9822 /**
9823  * lpfc_write_firmware - attempt to write a firmware image to the port
9824  * @fw: pointer to firmware image returned from request_firmware.
9825  * @phba: pointer to lpfc hba data structure.
9826  *
9827  **/
9828 static void
9829 lpfc_write_firmware(const struct firmware *fw, void *context)
9830 {
9831         struct lpfc_hba *phba = (struct lpfc_hba *)context;
9832         char fwrev[FW_REV_STR_SIZE];
9833         struct lpfc_grp_hdr *image;
9834         struct list_head dma_buffer_list;
9835         int i, rc = 0;
9836         struct lpfc_dmabuf *dmabuf, *next;
9837         uint32_t offset = 0, temp_offset = 0;
9838
9839         /* It can be null in no-wait mode, sanity check */
9840         if (!fw) {
9841                 rc = -ENXIO;
9842                 goto out;
9843         }
9844         image = (struct lpfc_grp_hdr *)fw->data;
9845
9846         INIT_LIST_HEAD(&dma_buffer_list);
9847         if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
9848             (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
9849              LPFC_FILE_TYPE_GROUP) ||
9850             (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
9851             (be32_to_cpu(image->size) != fw->size)) {
9852                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9853                                 "3022 Invalid FW image found. "
9854                                 "Magic:%x Type:%x ID:%x\n",
9855                                 be32_to_cpu(image->magic_number),
9856                                 bf_get_be32(lpfc_grp_hdr_file_type, image),
9857                                 bf_get_be32(lpfc_grp_hdr_id, image));
9858                 rc = -EINVAL;
9859                 goto release_out;
9860         }
9861         lpfc_decode_firmware_rev(phba, fwrev, 1);
9862         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
9863                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9864                                 "3023 Updating Firmware, Current Version:%s "
9865                                 "New Version:%s\n",
9866                                 fwrev, image->revision);
9867                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
9868                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
9869                                          GFP_KERNEL);
9870                         if (!dmabuf) {
9871                                 rc = -ENOMEM;
9872                                 goto release_out;
9873                         }
9874                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
9875                                                           SLI4_PAGE_SIZE,
9876                                                           &dmabuf->phys,
9877                                                           GFP_KERNEL);
9878                         if (!dmabuf->virt) {
9879                                 kfree(dmabuf);
9880                                 rc = -ENOMEM;
9881                                 goto release_out;
9882                         }
9883                         list_add_tail(&dmabuf->list, &dma_buffer_list);
9884                 }
9885                 while (offset < fw->size) {
9886                         temp_offset = offset;
9887                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
9888                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
9889                                         memcpy(dmabuf->virt,
9890                                                fw->data + temp_offset,
9891                                                fw->size - temp_offset);
9892                                         temp_offset = fw->size;
9893                                         break;
9894                                 }
9895                                 memcpy(dmabuf->virt, fw->data + temp_offset,
9896                                        SLI4_PAGE_SIZE);
9897                                 temp_offset += SLI4_PAGE_SIZE;
9898                         }
9899                         rc = lpfc_wr_object(phba, &dma_buffer_list,
9900                                     (fw->size - offset), &offset);
9901                         if (rc)
9902                                 goto release_out;
9903                 }
9904                 rc = offset;
9905         }
9906
9907 release_out:
9908         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
9909                 list_del(&dmabuf->list);
9910                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
9911                                   dmabuf->virt, dmabuf->phys);
9912                 kfree(dmabuf);
9913         }
9914         release_firmware(fw);
9915 out:
9916         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9917                         "3024 Firmware update done: %d.\n", rc);
9918         return;
9919 }
9920
9921 /**
9922  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
9923  * @phba: pointer to lpfc hba data structure.
9924  *
9925  * This routine is called to perform Linux generic firmware upgrade on device
9926  * that supports such feature.
9927  **/
9928 int
9929 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
9930 {
9931         uint8_t file_name[ELX_MODEL_NAME_SIZE];
9932         int ret;
9933         const struct firmware *fw;
9934
9935         /* Only supported on SLI4 interface type 2 for now */
9936         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
9937             LPFC_SLI_INTF_IF_TYPE_2)
9938                 return -EPERM;
9939
9940         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
9941
9942         if (fw_upgrade == INT_FW_UPGRADE) {
9943                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
9944                                         file_name, &phba->pcidev->dev,
9945                                         GFP_KERNEL, (void *)phba,
9946                                         lpfc_write_firmware);
9947         } else if (fw_upgrade == RUN_FW_UPGRADE) {
9948                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
9949                 if (!ret)
9950                         lpfc_write_firmware(fw, (void *)phba);
9951         } else {
9952                 ret = -EINVAL;
9953         }
9954
9955         return ret;
9956 }
9957
9958 /**
9959  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
9960  * @pdev: pointer to PCI device
9961  * @pid: pointer to PCI device identifier
9962  *
9963  * This routine is called from the kernel's PCI subsystem to device with
9964  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9965  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9966  * information of the device and driver to see if the driver state that it
9967  * can support this kind of device. If the match is successful, the driver
9968  * core invokes this routine. If this routine determines it can claim the HBA,
9969  * it does all the initialization that it needs to do to handle the HBA
9970  * properly.
9971  *
9972  * Return code
9973  *      0 - driver can claim the device
9974  *      negative value - driver can not claim the device
9975  **/
9976 static int
9977 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
9978 {
9979         struct lpfc_hba   *phba;
9980         struct lpfc_vport *vport = NULL;
9981         struct Scsi_Host  *shost = NULL;
9982         int error, ret;
9983         uint32_t cfg_mode, intr_mode;
9984         int adjusted_fcp_io_channel;
9985
9986         /* Allocate memory for HBA structure */
9987         phba = lpfc_hba_alloc(pdev);
9988         if (!phba)
9989                 return -ENOMEM;
9990
9991         /* Perform generic PCI device enabling operation */
9992         error = lpfc_enable_pci_dev(phba);
9993         if (error)
9994                 goto out_free_phba;
9995
9996         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9997         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
9998         if (error)
9999                 goto out_disable_pci_dev;
10000
10001         /* Set up SLI-4 specific device PCI memory space */
10002         error = lpfc_sli4_pci_mem_setup(phba);
10003         if (error) {
10004                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10005                                 "1410 Failed to set up pci memory space.\n");
10006                 goto out_disable_pci_dev;
10007         }
10008
10009         /* Set up phase-1 common device driver resources */
10010         error = lpfc_setup_driver_resource_phase1(phba);
10011         if (error) {
10012                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10013                                 "1411 Failed to set up driver resource.\n");
10014                 goto out_unset_pci_mem_s4;
10015         }
10016
10017         /* Set up SLI-4 Specific device driver resources */
10018         error = lpfc_sli4_driver_resource_setup(phba);
10019         if (error) {
10020                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10021                                 "1412 Failed to set up driver resource.\n");
10022                 goto out_unset_pci_mem_s4;
10023         }
10024
10025         /* Initialize and populate the iocb list per host */
10026
10027         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10028                         "2821 initialize iocb list %d.\n",
10029                         phba->cfg_iocb_cnt*1024);
10030         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10031
10032         if (error) {
10033                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10034                                 "1413 Failed to initialize iocb list.\n");
10035                 goto out_unset_driver_resource_s4;
10036         }
10037
10038         INIT_LIST_HEAD(&phba->active_rrq_list);
10039         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
10040
10041         /* Set up common device driver resources */
10042         error = lpfc_setup_driver_resource_phase2(phba);
10043         if (error) {
10044                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10045                                 "1414 Failed to set up driver resource.\n");
10046                 goto out_free_iocb_list;
10047         }
10048
10049         /* Get the default values for Model Name and Description */
10050         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10051
10052         /* Create SCSI host to the physical port */
10053         error = lpfc_create_shost(phba);
10054         if (error) {
10055                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10056                                 "1415 Failed to create scsi host.\n");
10057                 goto out_unset_driver_resource;
10058         }
10059
10060         /* Configure sysfs attributes */
10061         vport = phba->pport;
10062         error = lpfc_alloc_sysfs_attr(vport);
10063         if (error) {
10064                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10065                                 "1416 Failed to allocate sysfs attr\n");
10066                 goto out_destroy_shost;
10067         }
10068
10069         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10070         /* Now, trying to enable interrupt and bring up the device */
10071         cfg_mode = phba->cfg_use_msi;
10072
10073         /* Put device to a known state before enabling interrupt */
10074         lpfc_stop_port(phba);
10075         /* Configure and enable interrupt */
10076         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10077         if (intr_mode == LPFC_INTR_ERROR) {
10078                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10079                                 "0426 Failed to enable interrupt.\n");
10080                 error = -ENODEV;
10081                 goto out_free_sysfs_attr;
10082         }
10083         /* Default to single EQ for non-MSI-X */
10084         if (phba->intr_type != MSIX)
10085                 adjusted_fcp_io_channel = 1;
10086         else
10087                 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10088         phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10089         /* Set up SLI-4 HBA */
10090         if (lpfc_sli4_hba_setup(phba)) {
10091                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10092                                 "1421 Failed to set up hba\n");
10093                 error = -ENODEV;
10094                 goto out_disable_intr;
10095         }
10096
10097         /* Log the current active interrupt mode */
10098         phba->intr_mode = intr_mode;
10099         lpfc_log_intr_mode(phba, intr_mode);
10100
10101         /* Perform post initialization setup */
10102         lpfc_post_init_setup(phba);
10103
10104         /* check for firmware upgrade or downgrade */
10105         if (phba->cfg_request_firmware_upgrade)
10106                 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
10107
10108         /* Check if there are static vports to be created. */
10109         lpfc_create_static_vport(phba);
10110         return 0;
10111
10112 out_disable_intr:
10113         lpfc_sli4_disable_intr(phba);
10114 out_free_sysfs_attr:
10115         lpfc_free_sysfs_attr(vport);
10116 out_destroy_shost:
10117         lpfc_destroy_shost(phba);
10118 out_unset_driver_resource:
10119         lpfc_unset_driver_resource_phase2(phba);
10120 out_free_iocb_list:
10121         lpfc_free_iocb_list(phba);
10122 out_unset_driver_resource_s4:
10123         lpfc_sli4_driver_resource_unset(phba);
10124 out_unset_pci_mem_s4:
10125         lpfc_sli4_pci_mem_unset(phba);
10126 out_disable_pci_dev:
10127         lpfc_disable_pci_dev(phba);
10128         if (shost)
10129                 scsi_host_put(shost);
10130 out_free_phba:
10131         lpfc_hba_free(phba);
10132         return error;
10133 }
10134
10135 /**
10136  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
10137  * @pdev: pointer to PCI device
10138  *
10139  * This routine is called from the kernel's PCI subsystem to device with
10140  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10141  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10142  * device to be removed from the PCI subsystem properly.
10143  **/
10144 static void
10145 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
10146 {
10147         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10148         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10149         struct lpfc_vport **vports;
10150         struct lpfc_hba *phba = vport->phba;
10151         int i;
10152
10153         /* Mark the device unloading flag */
10154         spin_lock_irq(&phba->hbalock);
10155         vport->load_flag |= FC_UNLOADING;
10156         spin_unlock_irq(&phba->hbalock);
10157
10158         /* Free the HBA sysfs attributes */
10159         lpfc_free_sysfs_attr(vport);
10160
10161         /* Release all the vports against this physical port */
10162         vports = lpfc_create_vport_work_array(phba);
10163         if (vports != NULL)
10164                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10165                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10166                                 continue;
10167                         fc_vport_terminate(vports[i]->fc_vport);
10168                 }
10169         lpfc_destroy_vport_work_array(phba, vports);
10170
10171         /* Remove FC host and then SCSI host with the physical port */
10172         fc_remove_host(shost);
10173         scsi_remove_host(shost);
10174
10175         /* Perform cleanup on the physical port */
10176         lpfc_cleanup(vport);
10177
10178         /*
10179          * Bring down the SLI Layer. This step disables all interrupts,
10180          * clears the rings, discards all mailbox commands, and resets
10181          * the HBA FCoE function.
10182          */
10183         lpfc_debugfs_terminate(vport);
10184         lpfc_sli4_hba_unset(phba);
10185
10186         spin_lock_irq(&phba->hbalock);
10187         list_del_init(&vport->listentry);
10188         spin_unlock_irq(&phba->hbalock);
10189
10190         /* Perform scsi free before driver resource_unset since scsi
10191          * buffers are released to their corresponding pools here.
10192          */
10193         lpfc_scsi_free(phba);
10194
10195         lpfc_sli4_driver_resource_unset(phba);
10196
10197         /* Unmap adapter Control and Doorbell registers */
10198         lpfc_sli4_pci_mem_unset(phba);
10199
10200         /* Release PCI resources and disable device's PCI function */
10201         scsi_host_put(shost);
10202         lpfc_disable_pci_dev(phba);
10203
10204         /* Finally, free the driver's device data structure */
10205         lpfc_hba_free(phba);
10206
10207         return;
10208 }
10209
10210 /**
10211  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
10212  * @pdev: pointer to PCI device
10213  * @msg: power management message
10214  *
10215  * This routine is called from the kernel's PCI subsystem to support system
10216  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10217  * this method, it quiesces the device by stopping the driver's worker
10218  * thread for the device, turning off device's interrupt and DMA, and bring
10219  * the device offline. Note that as the driver implements the minimum PM
10220  * requirements to a power-aware driver's PM support for suspend/resume -- all
10221  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10222  * method call will be treated as SUSPEND and the driver will fully
10223  * reinitialize its device during resume() method call, the driver will set
10224  * device to PCI_D3hot state in PCI config space instead of setting it
10225  * according to the @msg provided by the PM.
10226  *
10227  * Return code
10228  *      0 - driver suspended the device
10229  *      Error otherwise
10230  **/
10231 static int
10232 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
10233 {
10234         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10235         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10236
10237         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10238                         "2843 PCI device Power Management suspend.\n");
10239
10240         /* Bring down the device */
10241         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10242         lpfc_offline(phba);
10243         kthread_stop(phba->worker_thread);
10244
10245         /* Disable interrupt from device */
10246         lpfc_sli4_disable_intr(phba);
10247         lpfc_sli4_queue_destroy(phba);
10248
10249         /* Save device state to PCI config space */
10250         pci_save_state(pdev);
10251         pci_set_power_state(pdev, PCI_D3hot);
10252
10253         return 0;
10254 }
10255
10256 /**
10257  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
10258  * @pdev: pointer to PCI device
10259  *
10260  * This routine is called from the kernel's PCI subsystem to support system
10261  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10262  * this method, it restores the device's PCI config space state and fully
10263  * reinitializes the device and brings it online. Note that as the driver
10264  * implements the minimum PM requirements to a power-aware driver's PM for
10265  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10266  * to the suspend() method call will be treated as SUSPEND and the driver
10267  * will fully reinitialize its device during resume() method call, the device
10268  * will be set to PCI_D0 directly in PCI config space before restoring the
10269  * state.
10270  *
10271  * Return code
10272  *      0 - driver suspended the device
10273  *      Error otherwise
10274  **/
10275 static int
10276 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
10277 {
10278         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10279         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10280         uint32_t intr_mode;
10281         int error;
10282
10283         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10284                         "0292 PCI device Power Management resume.\n");
10285
10286         /* Restore device state from PCI config space */
10287         pci_set_power_state(pdev, PCI_D0);
10288         pci_restore_state(pdev);
10289
10290         /*
10291          * As the new kernel behavior of pci_restore_state() API call clears
10292          * device saved_state flag, need to save the restored state again.
10293          */
10294         pci_save_state(pdev);
10295
10296         if (pdev->is_busmaster)
10297                 pci_set_master(pdev);
10298
10299          /* Startup the kernel thread for this host adapter. */
10300         phba->worker_thread = kthread_run(lpfc_do_work, phba,
10301                                         "lpfc_worker_%d", phba->brd_no);
10302         if (IS_ERR(phba->worker_thread)) {
10303                 error = PTR_ERR(phba->worker_thread);
10304                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10305                                 "0293 PM resume failed to start worker "
10306                                 "thread: error=x%x.\n", error);
10307                 return error;
10308         }
10309
10310         /* Configure and enable interrupt */
10311         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10312         if (intr_mode == LPFC_INTR_ERROR) {
10313                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10314                                 "0294 PM resume Failed to enable interrupt\n");
10315                 return -EIO;
10316         } else
10317                 phba->intr_mode = intr_mode;
10318
10319         /* Restart HBA and bring it online */
10320         lpfc_sli_brdrestart(phba);
10321         lpfc_online(phba);
10322
10323         /* Log the current active interrupt mode */
10324         lpfc_log_intr_mode(phba, phba->intr_mode);
10325
10326         return 0;
10327 }
10328
10329 /**
10330  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10331  * @phba: pointer to lpfc hba data structure.
10332  *
10333  * This routine is called to prepare the SLI4 device for PCI slot recover. It
10334  * aborts all the outstanding SCSI I/Os to the pci device.
10335  **/
10336 static void
10337 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10338 {
10339         struct lpfc_sli *psli = &phba->sli;
10340         struct lpfc_sli_ring  *pring;
10341
10342         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10343                         "2828 PCI channel I/O abort preparing for recovery\n");
10344         /*
10345          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10346          * and let the SCSI mid-layer to retry them to recover.
10347          */
10348         pring = &psli->ring[psli->fcp_ring];
10349         lpfc_sli_abort_iocb_ring(phba, pring);
10350 }
10351
10352 /**
10353  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10354  * @phba: pointer to lpfc hba data structure.
10355  *
10356  * This routine is called to prepare the SLI4 device for PCI slot reset. It
10357  * disables the device interrupt and pci device, and aborts the internal FCP
10358  * pending I/Os.
10359  **/
10360 static void
10361 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10362 {
10363         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10364                         "2826 PCI channel disable preparing for reset\n");
10365
10366         /* Block any management I/Os to the device */
10367         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10368
10369         /* Block all SCSI devices' I/Os on the host */
10370         lpfc_scsi_dev_block(phba);
10371
10372         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10373         lpfc_sli_flush_fcp_rings(phba);
10374
10375         /* stop all timers */
10376         lpfc_stop_hba_timers(phba);
10377
10378         /* Disable interrupt and pci device */
10379         lpfc_sli4_disable_intr(phba);
10380         lpfc_sli4_queue_destroy(phba);
10381         pci_disable_device(phba->pcidev);
10382 }
10383
10384 /**
10385  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10386  * @phba: pointer to lpfc hba data structure.
10387  *
10388  * This routine is called to prepare the SLI4 device for PCI slot permanently
10389  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10390  * pending I/Os.
10391  **/
10392 static void
10393 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10394 {
10395         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10396                         "2827 PCI channel permanent disable for failure\n");
10397
10398         /* Block all SCSI devices' I/Os on the host */
10399         lpfc_scsi_dev_block(phba);
10400
10401         /* stop all timers */
10402         lpfc_stop_hba_timers(phba);
10403
10404         /* Clean up all driver's outstanding SCSI I/Os */
10405         lpfc_sli_flush_fcp_rings(phba);
10406 }
10407
10408 /**
10409  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10410  * @pdev: pointer to PCI device.
10411  * @state: the current PCI connection state.
10412  *
10413  * This routine is called from the PCI subsystem for error handling to device
10414  * with SLI-4 interface spec. This function is called by the PCI subsystem
10415  * after a PCI bus error affecting this device has been detected. When this
10416  * function is invoked, it will need to stop all the I/Os and interrupt(s)
10417  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10418  * for the PCI subsystem to perform proper recovery as desired.
10419  *
10420  * Return codes
10421  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10422  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10423  **/
10424 static pci_ers_result_t
10425 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10426 {
10427         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10428         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10429
10430         switch (state) {
10431         case pci_channel_io_normal:
10432                 /* Non-fatal error, prepare for recovery */
10433                 lpfc_sli4_prep_dev_for_recover(phba);
10434                 return PCI_ERS_RESULT_CAN_RECOVER;
10435         case pci_channel_io_frozen:
10436                 /* Fatal error, prepare for slot reset */
10437                 lpfc_sli4_prep_dev_for_reset(phba);
10438                 return PCI_ERS_RESULT_NEED_RESET;
10439         case pci_channel_io_perm_failure:
10440                 /* Permanent failure, prepare for device down */
10441                 lpfc_sli4_prep_dev_for_perm_failure(phba);
10442                 return PCI_ERS_RESULT_DISCONNECT;
10443         default:
10444                 /* Unknown state, prepare and request slot reset */
10445                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10446                                 "2825 Unknown PCI error state: x%x\n", state);
10447                 lpfc_sli4_prep_dev_for_reset(phba);
10448                 return PCI_ERS_RESULT_NEED_RESET;
10449         }
10450 }
10451
10452 /**
10453  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10454  * @pdev: pointer to PCI device.
10455  *
10456  * This routine is called from the PCI subsystem for error handling to device
10457  * with SLI-4 interface spec. It is called after PCI bus has been reset to
10458  * restart the PCI card from scratch, as if from a cold-boot. During the
10459  * PCI subsystem error recovery, after the driver returns
10460  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10461  * recovery and then call this routine before calling the .resume method to
10462  * recover the device. This function will initialize the HBA device, enable
10463  * the interrupt, but it will just put the HBA to offline state without
10464  * passing any I/O traffic.
10465  *
10466  * Return codes
10467  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10468  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10469  */
10470 static pci_ers_result_t
10471 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10472 {
10473         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10474         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10475         struct lpfc_sli *psli = &phba->sli;
10476         uint32_t intr_mode;
10477
10478         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10479         if (pci_enable_device_mem(pdev)) {
10480                 printk(KERN_ERR "lpfc: Cannot re-enable "
10481                         "PCI device after reset.\n");
10482                 return PCI_ERS_RESULT_DISCONNECT;
10483         }
10484
10485         pci_restore_state(pdev);
10486
10487         /*
10488          * As the new kernel behavior of pci_restore_state() API call clears
10489          * device saved_state flag, need to save the restored state again.
10490          */
10491         pci_save_state(pdev);
10492
10493         if (pdev->is_busmaster)
10494                 pci_set_master(pdev);
10495
10496         spin_lock_irq(&phba->hbalock);
10497         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10498         spin_unlock_irq(&phba->hbalock);
10499
10500         /* Configure and enable interrupt */
10501         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10502         if (intr_mode == LPFC_INTR_ERROR) {
10503                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10504                                 "2824 Cannot re-enable interrupt after "
10505                                 "slot reset.\n");
10506                 return PCI_ERS_RESULT_DISCONNECT;
10507         } else
10508                 phba->intr_mode = intr_mode;
10509
10510         /* Log the current active interrupt mode */
10511         lpfc_log_intr_mode(phba, phba->intr_mode);
10512
10513         return PCI_ERS_RESULT_RECOVERED;
10514 }
10515
10516 /**
10517  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10518  * @pdev: pointer to PCI device
10519  *
10520  * This routine is called from the PCI subsystem for error handling to device
10521  * with SLI-4 interface spec. It is called when kernel error recovery tells
10522  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10523  * error recovery. After this call, traffic can start to flow from this device
10524  * again.
10525  **/
10526 static void
10527 lpfc_io_resume_s4(struct pci_dev *pdev)
10528 {
10529         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10530         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10531
10532         /*
10533          * In case of slot reset, as function reset is performed through
10534          * mailbox command which needs DMA to be enabled, this operation
10535          * has to be moved to the io resume phase. Taking device offline
10536          * will perform the necessary cleanup.
10537          */
10538         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10539                 /* Perform device reset */
10540                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10541                 lpfc_offline(phba);
10542                 lpfc_sli_brdrestart(phba);
10543                 /* Bring the device back online */
10544                 lpfc_online(phba);
10545         }
10546
10547         /* Clean up Advanced Error Reporting (AER) if needed */
10548         if (phba->hba_flag & HBA_AER_ENABLED)
10549                 pci_cleanup_aer_uncorrect_error_status(pdev);
10550 }
10551
10552 /**
10553  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10554  * @pdev: pointer to PCI device
10555  * @pid: pointer to PCI device identifier
10556  *
10557  * This routine is to be registered to the kernel's PCI subsystem. When an
10558  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10559  * at PCI device-specific information of the device and driver to see if the
10560  * driver state that it can support this kind of device. If the match is
10561  * successful, the driver core invokes this routine. This routine dispatches
10562  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10563  * do all the initialization that it needs to do to handle the HBA device
10564  * properly.
10565  *
10566  * Return code
10567  *      0 - driver can claim the device
10568  *      negative value - driver can not claim the device
10569  **/
10570 static int
10571 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10572 {
10573         int rc;
10574         struct lpfc_sli_intf intf;
10575
10576         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10577                 return -ENODEV;
10578
10579         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10580             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10581                 rc = lpfc_pci_probe_one_s4(pdev, pid);
10582         else
10583                 rc = lpfc_pci_probe_one_s3(pdev, pid);
10584
10585         return rc;
10586 }
10587
10588 /**
10589  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10590  * @pdev: pointer to PCI device
10591  *
10592  * This routine is to be registered to the kernel's PCI subsystem. When an
10593  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10594  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10595  * remove routine, which will perform all the necessary cleanup for the
10596  * device to be removed from the PCI subsystem properly.
10597  **/
10598 static void
10599 lpfc_pci_remove_one(struct pci_dev *pdev)
10600 {
10601         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10602         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10603
10604         switch (phba->pci_dev_grp) {
10605         case LPFC_PCI_DEV_LP:
10606                 lpfc_pci_remove_one_s3(pdev);
10607                 break;
10608         case LPFC_PCI_DEV_OC:
10609                 lpfc_pci_remove_one_s4(pdev);
10610                 break;
10611         default:
10612                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10613                                 "1424 Invalid PCI device group: 0x%x\n",
10614                                 phba->pci_dev_grp);
10615                 break;
10616         }
10617         return;
10618 }
10619
10620 /**
10621  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10622  * @pdev: pointer to PCI device
10623  * @msg: power management message
10624  *
10625  * This routine is to be registered to the kernel's PCI subsystem to support
10626  * system Power Management (PM). When PM invokes this method, it dispatches
10627  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10628  * suspend the device.
10629  *
10630  * Return code
10631  *      0 - driver suspended the device
10632  *      Error otherwise
10633  **/
10634 static int
10635 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10636 {
10637         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10638         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10639         int rc = -ENODEV;
10640
10641         switch (phba->pci_dev_grp) {
10642         case LPFC_PCI_DEV_LP:
10643                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10644                 break;
10645         case LPFC_PCI_DEV_OC:
10646                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10647                 break;
10648         default:
10649                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10650                                 "1425 Invalid PCI device group: 0x%x\n",
10651                                 phba->pci_dev_grp);
10652                 break;
10653         }
10654         return rc;
10655 }
10656
10657 /**
10658  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10659  * @pdev: pointer to PCI device
10660  *
10661  * This routine is to be registered to the kernel's PCI subsystem to support
10662  * system Power Management (PM). When PM invokes this method, it dispatches
10663  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10664  * resume the device.
10665  *
10666  * Return code
10667  *      0 - driver suspended the device
10668  *      Error otherwise
10669  **/
10670 static int
10671 lpfc_pci_resume_one(struct pci_dev *pdev)
10672 {
10673         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10674         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10675         int rc = -ENODEV;
10676
10677         switch (phba->pci_dev_grp) {
10678         case LPFC_PCI_DEV_LP:
10679                 rc = lpfc_pci_resume_one_s3(pdev);
10680                 break;
10681         case LPFC_PCI_DEV_OC:
10682                 rc = lpfc_pci_resume_one_s4(pdev);
10683                 break;
10684         default:
10685                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10686                                 "1426 Invalid PCI device group: 0x%x\n",
10687                                 phba->pci_dev_grp);
10688                 break;
10689         }
10690         return rc;
10691 }
10692
10693 /**
10694  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10695  * @pdev: pointer to PCI device.
10696  * @state: the current PCI connection state.
10697  *
10698  * This routine is registered to the PCI subsystem for error handling. This
10699  * function is called by the PCI subsystem after a PCI bus error affecting
10700  * this device has been detected. When this routine is invoked, it dispatches
10701  * the action to the proper SLI-3 or SLI-4 device error detected handling
10702  * routine, which will perform the proper error detected operation.
10703  *
10704  * Return codes
10705  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10706  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10707  **/
10708 static pci_ers_result_t
10709 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
10710 {
10711         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10712         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10713         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10714
10715         switch (phba->pci_dev_grp) {
10716         case LPFC_PCI_DEV_LP:
10717                 rc = lpfc_io_error_detected_s3(pdev, state);
10718                 break;
10719         case LPFC_PCI_DEV_OC:
10720                 rc = lpfc_io_error_detected_s4(pdev, state);
10721                 break;
10722         default:
10723                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10724                                 "1427 Invalid PCI device group: 0x%x\n",
10725                                 phba->pci_dev_grp);
10726                 break;
10727         }
10728         return rc;
10729 }
10730
10731 /**
10732  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
10733  * @pdev: pointer to PCI device.
10734  *
10735  * This routine is registered to the PCI subsystem for error handling. This
10736  * function is called after PCI bus has been reset to restart the PCI card
10737  * from scratch, as if from a cold-boot. When this routine is invoked, it
10738  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
10739  * routine, which will perform the proper device reset.
10740  *
10741  * Return codes
10742  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10743  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10744  **/
10745 static pci_ers_result_t
10746 lpfc_io_slot_reset(struct pci_dev *pdev)
10747 {
10748         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10749         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10750         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10751
10752         switch (phba->pci_dev_grp) {
10753         case LPFC_PCI_DEV_LP:
10754                 rc = lpfc_io_slot_reset_s3(pdev);
10755                 break;
10756         case LPFC_PCI_DEV_OC:
10757                 rc = lpfc_io_slot_reset_s4(pdev);
10758                 break;
10759         default:
10760                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10761                                 "1428 Invalid PCI device group: 0x%x\n",
10762                                 phba->pci_dev_grp);
10763                 break;
10764         }
10765         return rc;
10766 }
10767
10768 /**
10769  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
10770  * @pdev: pointer to PCI device
10771  *
10772  * This routine is registered to the PCI subsystem for error handling. It
10773  * is called when kernel error recovery tells the lpfc driver that it is
10774  * OK to resume normal PCI operation after PCI bus error recovery. When
10775  * this routine is invoked, it dispatches the action to the proper SLI-3
10776  * or SLI-4 device io_resume routine, which will resume the device operation.
10777  **/
10778 static void
10779 lpfc_io_resume(struct pci_dev *pdev)
10780 {
10781         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10782         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10783
10784         switch (phba->pci_dev_grp) {
10785         case LPFC_PCI_DEV_LP:
10786                 lpfc_io_resume_s3(pdev);
10787                 break;
10788         case LPFC_PCI_DEV_OC:
10789                 lpfc_io_resume_s4(pdev);
10790                 break;
10791         default:
10792                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10793                                 "1429 Invalid PCI device group: 0x%x\n",
10794                                 phba->pci_dev_grp);
10795                 break;
10796         }
10797         return;
10798 }
10799
10800 static struct pci_device_id lpfc_id_table[] = {
10801         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
10802                 PCI_ANY_ID, PCI_ANY_ID, },
10803         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
10804                 PCI_ANY_ID, PCI_ANY_ID, },
10805         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
10806                 PCI_ANY_ID, PCI_ANY_ID, },
10807         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
10808                 PCI_ANY_ID, PCI_ANY_ID, },
10809         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
10810                 PCI_ANY_ID, PCI_ANY_ID, },
10811         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
10812                 PCI_ANY_ID, PCI_ANY_ID, },
10813         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
10814                 PCI_ANY_ID, PCI_ANY_ID, },
10815         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
10816                 PCI_ANY_ID, PCI_ANY_ID, },
10817         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
10818                 PCI_ANY_ID, PCI_ANY_ID, },
10819         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
10820                 PCI_ANY_ID, PCI_ANY_ID, },
10821         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
10822                 PCI_ANY_ID, PCI_ANY_ID, },
10823         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
10824                 PCI_ANY_ID, PCI_ANY_ID, },
10825         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
10826                 PCI_ANY_ID, PCI_ANY_ID, },
10827         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
10828                 PCI_ANY_ID, PCI_ANY_ID, },
10829         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
10830                 PCI_ANY_ID, PCI_ANY_ID, },
10831         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
10832                 PCI_ANY_ID, PCI_ANY_ID, },
10833         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
10834                 PCI_ANY_ID, PCI_ANY_ID, },
10835         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
10836                 PCI_ANY_ID, PCI_ANY_ID, },
10837         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
10838                 PCI_ANY_ID, PCI_ANY_ID, },
10839         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
10840                 PCI_ANY_ID, PCI_ANY_ID, },
10841         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
10842                 PCI_ANY_ID, PCI_ANY_ID, },
10843         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
10844                 PCI_ANY_ID, PCI_ANY_ID, },
10845         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
10846                 PCI_ANY_ID, PCI_ANY_ID, },
10847         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
10848                 PCI_ANY_ID, PCI_ANY_ID, },
10849         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
10850                 PCI_ANY_ID, PCI_ANY_ID, },
10851         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
10852                 PCI_ANY_ID, PCI_ANY_ID, },
10853         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
10854                 PCI_ANY_ID, PCI_ANY_ID, },
10855         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
10856                 PCI_ANY_ID, PCI_ANY_ID, },
10857         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
10858                 PCI_ANY_ID, PCI_ANY_ID, },
10859         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
10860                 PCI_ANY_ID, PCI_ANY_ID, },
10861         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
10862                 PCI_ANY_ID, PCI_ANY_ID, },
10863         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
10864                 PCI_ANY_ID, PCI_ANY_ID, },
10865         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
10866                 PCI_ANY_ID, PCI_ANY_ID, },
10867         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
10868                 PCI_ANY_ID, PCI_ANY_ID, },
10869         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
10870                 PCI_ANY_ID, PCI_ANY_ID, },
10871         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
10872                 PCI_ANY_ID, PCI_ANY_ID, },
10873         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
10874                 PCI_ANY_ID, PCI_ANY_ID, },
10875         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
10876                 PCI_ANY_ID, PCI_ANY_ID, },
10877         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
10878                 PCI_ANY_ID, PCI_ANY_ID, },
10879         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
10880                 PCI_ANY_ID, PCI_ANY_ID, },
10881         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
10882                 PCI_ANY_ID, PCI_ANY_ID, },
10883         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
10884                 PCI_ANY_ID, PCI_ANY_ID, },
10885         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
10886                 PCI_ANY_ID, PCI_ANY_ID, },
10887         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
10888                 PCI_ANY_ID, PCI_ANY_ID, },
10889         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
10890                 PCI_ANY_ID, PCI_ANY_ID, },
10891         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
10892                 PCI_ANY_ID, PCI_ANY_ID, },
10893         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
10894                 PCI_ANY_ID, PCI_ANY_ID, },
10895         { 0 }
10896 };
10897
10898 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
10899
10900 static const struct pci_error_handlers lpfc_err_handler = {
10901         .error_detected = lpfc_io_error_detected,
10902         .slot_reset = lpfc_io_slot_reset,
10903         .resume = lpfc_io_resume,
10904 };
10905
10906 static struct pci_driver lpfc_driver = {
10907         .name           = LPFC_DRIVER_NAME,
10908         .id_table       = lpfc_id_table,
10909         .probe          = lpfc_pci_probe_one,
10910         .remove         = lpfc_pci_remove_one,
10911         .suspend        = lpfc_pci_suspend_one,
10912         .resume         = lpfc_pci_resume_one,
10913         .err_handler    = &lpfc_err_handler,
10914 };
10915
10916 static const struct file_operations lpfc_mgmt_fop = {
10917         .owner = THIS_MODULE,
10918 };
10919
10920 static struct miscdevice lpfc_mgmt_dev = {
10921         .minor = MISC_DYNAMIC_MINOR,
10922         .name = "lpfcmgmt",
10923         .fops = &lpfc_mgmt_fop,
10924 };
10925
10926 /**
10927  * lpfc_init - lpfc module initialization routine
10928  *
10929  * This routine is to be invoked when the lpfc module is loaded into the
10930  * kernel. The special kernel macro module_init() is used to indicate the
10931  * role of this routine to the kernel as lpfc module entry point.
10932  *
10933  * Return codes
10934  *   0 - successful
10935  *   -ENOMEM - FC attach transport failed
10936  *   all others - failed
10937  */
10938 static int __init
10939 lpfc_init(void)
10940 {
10941         int cpu;
10942         int error = 0;
10943
10944         printk(LPFC_MODULE_DESC "\n");
10945         printk(LPFC_COPYRIGHT "\n");
10946
10947         error = misc_register(&lpfc_mgmt_dev);
10948         if (error)
10949                 printk(KERN_ERR "Could not register lpfcmgmt device, "
10950                         "misc_register returned with status %d", error);
10951
10952         if (lpfc_enable_npiv) {
10953                 lpfc_transport_functions.vport_create = lpfc_vport_create;
10954                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
10955         }
10956         lpfc_transport_template =
10957                                 fc_attach_transport(&lpfc_transport_functions);
10958         if (lpfc_transport_template == NULL)
10959                 return -ENOMEM;
10960         if (lpfc_enable_npiv) {
10961                 lpfc_vport_transport_template =
10962                         fc_attach_transport(&lpfc_vport_transport_functions);
10963                 if (lpfc_vport_transport_template == NULL) {
10964                         fc_release_transport(lpfc_transport_template);
10965                         return -ENOMEM;
10966                 }
10967         }
10968
10969         /* Initialize in case vector mapping is needed */
10970         for (cpu = 0; cpu < LPFC_MAX_CPU; cpu++)
10971                 lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
10972
10973         error = pci_register_driver(&lpfc_driver);
10974         if (error) {
10975                 fc_release_transport(lpfc_transport_template);
10976                 if (lpfc_enable_npiv)
10977                         fc_release_transport(lpfc_vport_transport_template);
10978         }
10979
10980         return error;
10981 }
10982
10983 /**
10984  * lpfc_exit - lpfc module removal routine
10985  *
10986  * This routine is invoked when the lpfc module is removed from the kernel.
10987  * The special kernel macro module_exit() is used to indicate the role of
10988  * this routine to the kernel as lpfc module exit point.
10989  */
10990 static void __exit
10991 lpfc_exit(void)
10992 {
10993         misc_deregister(&lpfc_mgmt_dev);
10994         pci_unregister_driver(&lpfc_driver);
10995         fc_release_transport(lpfc_transport_template);
10996         if (lpfc_enable_npiv)
10997                 fc_release_transport(lpfc_vport_transport_template);
10998         if (_dump_buf_data) {
10999                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
11000                                 "_dump_buf_data at 0x%p\n",
11001                                 (1L << _dump_buf_data_order), _dump_buf_data);
11002                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
11003         }
11004
11005         if (_dump_buf_dif) {
11006                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
11007                                 "_dump_buf_dif at 0x%p\n",
11008                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
11009                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
11010         }
11011 }
11012
11013 module_init(lpfc_init);
11014 module_exit(lpfc_exit);
11015 MODULE_LICENSE("GPL");
11016 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11017 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11018 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);