Pileus Git - ~andy/linux/blob - 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
  37 #include <scsi/scsi.h>
  38 #include <scsi/scsi_device.h>
  39 #include <scsi/scsi_host.h>
  40 #include <scsi/scsi_transport_fc.h>
  41
  42 #include "lpfc_hw4.h"
  43 #include "lpfc_hw.h"
  44 #include "lpfc_sli.h"
  45 #include "lpfc_sli4.h"
  46 #include "lpfc_nl.h"
  47 #include "lpfc_disc.h"
  48 #include "lpfc_scsi.h"
  49 #include "lpfc.h"
  50 #include "lpfc_logmsg.h"
  51 #include "lpfc_crtn.h"
  52 #include "lpfc_vport.h"
  53 #include "lpfc_version.h"
  54
  55 char *_dump_buf_data;
  56 unsigned long _dump_buf_data_order;
  57 char *_dump_buf_dif;
  58 unsigned long _dump_buf_dif_order;
  59 spinlock_t _dump_buf_lock;
  60
  61 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  62 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  63 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  64 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  65 static int lpfc_setup_endian_order(struct lpfc_hba *);
  66 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  67 static void lpfc_free_sgl_list(struct lpfc_hba *);
  68 static int lpfc_init_sgl_list(struct lpfc_hba *);
  69 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  70 static void lpfc_free_active_sgl(struct lpfc_hba *);
  71 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  72 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  73 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  74 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  75 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  76
  77 static struct scsi_transport_template *lpfc_transport_template = NULL;
  78 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  79 static DEFINE_IDR(lpfc_hba_index);
  80
  81 /**
  82  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  83  * @phba: pointer to lpfc hba data structure.
  84  *
  85  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  86  * mailbox command. It retrieves the revision information from the HBA and
  87  * collects the Vital Product Data (VPD) about the HBA for preparing the
  88  * configuration of the HBA.
  89  *
  90  * Return codes:
  91  *   0 - success.
  92  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
  93  *   Any other value - indicates an error.
  94  **/
  95 int
  96 lpfc_config_port_prep(struct lpfc_hba *phba)
  97 {
  98         lpfc_vpd_t *vp = &phba->vpd;
  99         int i = 0, rc;
 100         LPFC_MBOXQ_t *pmb;
 101         MAILBOX_t *mb;
 102         char *lpfc_vpd_data = NULL;
 103         uint16_t offset = 0;
 104         static char licensed[56] =
 105                     "key unlock for use with gnu public licensed code only\0";
 106         static int init_key = 1;
 107
 108         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 109         if (!pmb) {
 110                 phba->link_state = LPFC_HBA_ERROR;
 111                 return -ENOMEM;
 112         }
 113
 114         mb = &pmb->u.mb;
 115         phba->link_state = LPFC_INIT_MBX_CMDS;
 116
 117         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 118                 if (init_key) {
 119                         uint32_t *ptext = (uint32_t *) licensed;
 120
 121                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 122                                 *ptext = cpu_to_be32(*ptext);
 123                         init_key = 0;
 124                 }
 125
 126                 lpfc_read_nv(phba, pmb);
 127                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 128                         sizeof (mb->un.varRDnvp.rsvd3));
 129                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 130                          sizeof (licensed));
 131
 132                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 133
 134                 if (rc != MBX_SUCCESS) {
 135                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 136                                         "0324 Config Port initialization "
 137                                         "error, mbxCmd x%x READ_NVPARM, "
 138                                         "mbxStatus x%x\n",
 139                                         mb->mbxCommand, mb->mbxStatus);
 140                         mempool_free(pmb, phba->mbox_mem_pool);
 141                         return -ERESTART;
 142                 }
 143                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 144                        sizeof(phba->wwnn));
 145                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 146                        sizeof(phba->wwpn));
 147         }
 148
 149         phba->sli3_options = 0x0;
 150
 151         /* Setup and issue mailbox READ REV command */
 152         lpfc_read_rev(phba, pmb);
 153         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 154         if (rc != MBX_SUCCESS) {
 155                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 156                                 "0439 Adapter failed to init, mbxCmd x%x "
 157                                 "READ_REV, mbxStatus x%x\n",
 158                                 mb->mbxCommand, mb->mbxStatus);
 159                 mempool_free( pmb, phba->mbox_mem_pool);
 160                 return -ERESTART;
 161         }
 162
 163
 164         /*
 165          * The value of rr must be 1 since the driver set the cv field to 1.
 166          * This setting requires the FW to set all revision fields.
 167          */
 168         if (mb->un.varRdRev.rr == 0) {
 169                 vp->rev.rBit = 0;
 170                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 171                                 "0440 Adapter failed to init, READ_REV has "
 172                                 "missing revision information.\n");
 173                 mempool_free(pmb, phba->mbox_mem_pool);
 174                 return -ERESTART;
 175         }
 176
 177         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 178                 mempool_free(pmb, phba->mbox_mem_pool);
 179                 return -EINVAL;
 180         }
 181
 182         /* Save information as VPD data */
 183         vp->rev.rBit = 1;
 184         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 185         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 186         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 187         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 188         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 189         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 190         vp->rev.smRev = mb->un.varRdRev.smRev;
 191         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 192         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 193         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 194         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 195         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 196         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 197         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 198         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 199
 200         /* If the sli feature level is less then 9, we must
 201          * tear down all RPIs and VPIs on link down if NPIV
 202          * is enabled.
 203          */
 204         if (vp->rev.feaLevelHigh < 9)
 205                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 206
 207         if (lpfc_is_LC_HBA(phba->pcidev->device))
 208                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 209                                                 sizeof (phba->RandomData));
 210
 211         /* Get adapter VPD information */
 212         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 213         if (!lpfc_vpd_data)
 214                 goto out_free_mbox;
 215         do {
 216                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 217                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 218
 219                 if (rc != MBX_SUCCESS) {
 220                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 221                                         "0441 VPD not present on adapter, "
 222                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 223                                         mb->mbxCommand, mb->mbxStatus);
 224                         mb->un.varDmp.word_cnt = 0;
 225                 }
 226                 /* dump mem may return a zero when finished or we got a
 227                  * mailbox error, either way we are done.
 228                  */
 229                 if (mb->un.varDmp.word_cnt == 0)
 230                         break;
 231                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 232                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 233                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 234                                       lpfc_vpd_data + offset,
 235                                       mb->un.varDmp.word_cnt);
 236                 offset += mb->un.varDmp.word_cnt;
 237         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 238         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 239
 240         kfree(lpfc_vpd_data);
 241 out_free_mbox:
 242         mempool_free(pmb, phba->mbox_mem_pool);
 243         return 0;
 244 }
 245
 246 /**
 247  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 248  * @phba: pointer to lpfc hba data structure.
 249  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 250  *
 251  * This is the completion handler for driver's configuring asynchronous event
 252  * mailbox command to the device. If the mailbox command returns successfully,
 253  * it will set internal async event support flag to 1; otherwise, it will
 254  * set internal async event support flag to 0.
 255  **/
 256 static void
 257 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 258 {
 259         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 260                 phba->temp_sensor_support = 1;
 261         else
 262                 phba->temp_sensor_support = 0;
 263         mempool_free(pmboxq, phba->mbox_mem_pool);
 264         return;
 265 }
 266
 267 /**
 268  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 269  * @phba: pointer to lpfc hba data structure.
 270  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 271  *
 272  * This is the completion handler for dump mailbox command for getting
 273  * wake up parameters. When this command complete, the response contain
 274  * Option rom version of the HBA. This function translate the version number
 275  * into a human readable string and store it in OptionROMVersion.
 276  **/
 277 static void
 278 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 279 {
 280         struct prog_id *prg;
 281         uint32_t prog_id_word;
 282         char dist = ' ';
 283         /* character array used for decoding dist type. */
 284         char dist_char[] = "nabx";
 285
 286         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 287                 mempool_free(pmboxq, phba->mbox_mem_pool);
 288                 return;
 289         }
 290
 291         prg = (struct prog_id *) &prog_id_word;
 292
 293         /* word 7 contain option rom version */
 294         prog_id_word = pmboxq->u.mb.un.varWords[7];
 295
 296         /* Decode the Option rom version word to a readable string */
 297         if (prg->dist < 4)
 298                 dist = dist_char[prg->dist];
 299
 300         if ((prg->dist == 3) && (prg->num == 0))
 301                 sprintf(phba->OptionROMVersion, "%d.%d%d",
 302                         prg->ver, prg->rev, prg->lev);
 303         else
 304                 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
 305                         prg->ver, prg->rev, prg->lev,
 306                         dist, prg->num);
 307         mempool_free(pmboxq, phba->mbox_mem_pool);
 308         return;
 309 }
 310
 311 /**
 312  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 313  *      cfg_soft_wwnn, cfg_soft_wwpn
 314  * @vport: pointer to lpfc vport data structure.
 315  *
 316  *
 317  * Return codes
 318  *   None.
 319  **/
 320 void
 321 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 322 {
 323         /* If the soft name exists then update it using the service params */
 324         if (vport->phba->cfg_soft_wwnn)
 325                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 326                            vport->fc_sparam.nodeName.u.wwn);
 327         if (vport->phba->cfg_soft_wwpn)
 328                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 329                            vport->fc_sparam.portName.u.wwn);
 330
 331         /*
 332          * If the name is empty or there exists a soft name
 333          * then copy the service params name, otherwise use the fc name
 334          */
 335         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 336                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 337                         sizeof(struct lpfc_name));
 338         else
 339                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 340                         sizeof(struct lpfc_name));
 341
 342         if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
 343                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 344                         sizeof(struct lpfc_name));
 345         else
 346                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 347                         sizeof(struct lpfc_name));
 348 }
 349
 350 /**
 351  * lpfc_config_port_post - Perform lpfc initialization after config port
 352  * @phba: pointer to lpfc hba data structure.
 353  *
 354  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 355  * command call. It performs all internal resource and state setups on the
 356  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 357  * ELS ring timers, etc.
 358  *
 359  * Return codes
 360  *   0 - success.
 361  *   Any other value - error.
 362  **/
 363 int
 364 lpfc_config_port_post(struct lpfc_hba *phba)
 365 {
 366         struct lpfc_vport *vport = phba->pport;
 367         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 368         LPFC_MBOXQ_t *pmb;
 369         MAILBOX_t *mb;
 370         struct lpfc_dmabuf *mp;
 371         struct lpfc_sli *psli = &phba->sli;
 372         uint32_t status, timeout;
 373         int i, j;
 374         int rc;
 375
 376         spin_lock_irq(&phba->hbalock);
 377         /*
 378          * If the Config port completed correctly the HBA is not
 379          * over heated any more.
 380          */
 381         if (phba->over_temp_state == HBA_OVER_TEMP)
 382                 phba->over_temp_state = HBA_NORMAL_TEMP;
 383         spin_unlock_irq(&phba->hbalock);
 384
 385         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 386         if (!pmb) {
 387                 phba->link_state = LPFC_HBA_ERROR;
 388                 return -ENOMEM;
 389         }
 390         mb = &pmb->u.mb;
 391
 392         /* Get login parameters for NID.  */
 393         rc = lpfc_read_sparam(phba, pmb, 0);
 394         if (rc) {
 395                 mempool_free(pmb, phba->mbox_mem_pool);
 396                 return -ENOMEM;
 397         }
 398
 399         pmb->vport = vport;
 400         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 401                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 402                                 "0448 Adapter failed init, mbxCmd x%x "
 403                                 "READ_SPARM mbxStatus x%x\n",
 404                                 mb->mbxCommand, mb->mbxStatus);
 405                 phba->link_state = LPFC_HBA_ERROR;
 406                 mp = (struct lpfc_dmabuf *) pmb->context1;
 407                 mempool_free(pmb, phba->mbox_mem_pool);
 408                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 409                 kfree(mp);
 410                 return -EIO;
 411         }
 412
 413         mp = (struct lpfc_dmabuf *) pmb->context1;
 414
 415         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 416         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 417         kfree(mp);
 418         pmb->context1 = NULL;
 419         lpfc_update_vport_wwn(vport);
 420
 421         /* Update the fc_host data structures with new wwn. */
 422         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 423         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 424         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 425
 426         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 427         /* This should be consolidated into parse_vpd ? - mr */
 428         if (phba->SerialNumber[0] == 0) {
 429                 uint8_t *outptr;
 430
 431                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 432                 for (i = 0; i < 12; i++) {
 433                         status = *outptr++;
 434                         j = ((status & 0xf0) >> 4);
 435                         if (j <= 9)
 436                                 phba->SerialNumber[i] =
 437                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 438                         else
 439                                 phba->SerialNumber[i] =
 440                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 441                         i++;
 442                         j = (status & 0xf);
 443                         if (j <= 9)
 444                                 phba->SerialNumber[i] =
 445                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 446                         else
 447                                 phba->SerialNumber[i] =
 448                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 449                 }
 450         }
 451
 452         lpfc_read_config(phba, pmb);
 453         pmb->vport = vport;
 454         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 455                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 456                                 "0453 Adapter failed to init, mbxCmd x%x "
 457                                 "READ_CONFIG, mbxStatus x%x\n",
 458                                 mb->mbxCommand, mb->mbxStatus);
 459                 phba->link_state = LPFC_HBA_ERROR;
 460                 mempool_free( pmb, phba->mbox_mem_pool);
 461                 return -EIO;
 462         }
 463
 464         /* Check if the port is disabled */
 465         lpfc_sli_read_link_ste(phba);
 466
 467         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 468         if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
 469                 phba->cfg_hba_queue_depth =
 470                         (mb->un.varRdConfig.max_xri + 1) -
 471                                         lpfc_sli4_get_els_iocb_cnt(phba);
 472
 473         phba->lmt = mb->un.varRdConfig.lmt;
 474
 475         /* Get the default values for Model Name and Description */
 476         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 477
 478         phba->link_state = LPFC_LINK_DOWN;
 479
 480         /* Only process IOCBs on ELS ring till hba_state is READY */
 481         if (psli->ring[psli->extra_ring].cmdringaddr)
 482                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 483         if (psli->ring[psli->fcp_ring].cmdringaddr)
 484                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 485         if (psli->ring[psli->next_ring].cmdringaddr)
 486                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 487
 488         /* Post receive buffers for desired rings */
 489         if (phba->sli_rev != 3)
 490                 lpfc_post_rcv_buf(phba);
 491
 492         /*
 493          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 494          */
 495         if (phba->intr_type == MSIX) {
 496                 rc = lpfc_config_msi(phba, pmb);
 497                 if (rc) {
 498                         mempool_free(pmb, phba->mbox_mem_pool);
 499                         return -EIO;
 500                 }
 501                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 502                 if (rc != MBX_SUCCESS) {
 503                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 504                                         "0352 Config MSI mailbox command "
 505                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 506                                         pmb->u.mb.mbxCommand,
 507                                         pmb->u.mb.mbxStatus);
 508                         mempool_free(pmb, phba->mbox_mem_pool);
 509                         return -EIO;
 510                 }
 511         }
 512
 513         spin_lock_irq(&phba->hbalock);
 514         /* Initialize ERATT handling flag */
 515         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 516
 517         /* Enable appropriate host interrupts */
 518         if (lpfc_readl(phba->HCregaddr, &status)) {
 519                 spin_unlock_irq(&phba->hbalock);
 520                 return -EIO;
 521         }
 522         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 523         if (psli->num_rings > 0)
 524                 status |= HC_R0INT_ENA;
 525         if (psli->num_rings > 1)
 526                 status |= HC_R1INT_ENA;
 527         if (psli->num_rings > 2)
 528                 status |= HC_R2INT_ENA;
 529         if (psli->num_rings > 3)
 530                 status |= HC_R3INT_ENA;
 531
 532         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 533             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 534                 status &= ~(HC_R0INT_ENA);
 535
 536         writel(status, phba->HCregaddr);
 537         readl(phba->HCregaddr); /* flush */
 538         spin_unlock_irq(&phba->hbalock);
 539
 540         /* Set up ring-0 (ELS) timer */
 541         timeout = phba->fc_ratov * 2;
 542         mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
 543         /* Set up heart beat (HB) timer */
 544         mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
 545         phba->hb_outstanding = 0;
 546         phba->last_completion_time = jiffies;
 547         /* Set up error attention (ERATT) polling timer */
 548         mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
 549
 550         if (phba->hba_flag & LINK_DISABLED) {
 551                 lpfc_printf_log(phba,
 552                         KERN_ERR, LOG_INIT,
 553                         "2598 Adapter Link is disabled.\n");
 554                 lpfc_down_link(phba, pmb);
 555                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 556                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 557                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 558                         lpfc_printf_log(phba,
 559                         KERN_ERR, LOG_INIT,
 560                         "2599 Adapter failed to issue DOWN_LINK"
 561                         " mbox command rc 0x%x\n", rc);
 562
 563                         mempool_free(pmb, phba->mbox_mem_pool);
 564                         return -EIO;
 565                 }
 566         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 567                 mempool_free(pmb, phba->mbox_mem_pool);
 568                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 569                 if (rc)
 570                         return rc;
 571         }
 572         /* MBOX buffer will be freed in mbox compl */
 573         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 574         if (!pmb) {
 575                 phba->link_state = LPFC_HBA_ERROR;
 576                 return -ENOMEM;
 577         }
 578
 579         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 580         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 581         pmb->vport = phba->pport;
 582         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 583
 584         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 585                 lpfc_printf_log(phba,
 586                                 KERN_ERR,
 587                                 LOG_INIT,
 588                                 "0456 Adapter failed to issue "
 589                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 590                                 rc);
 591                 mempool_free(pmb, phba->mbox_mem_pool);
 592         }
 593
 594         /* Get Option rom version */
 595         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 596         if (!pmb) {
 597                 phba->link_state = LPFC_HBA_ERROR;
 598                 return -ENOMEM;
 599         }
 600
 601         lpfc_dump_wakeup_param(phba, pmb);
 602         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 603         pmb->vport = phba->pport;
 604         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 605
 606         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 607                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 608                                 "to get Option ROM version status x%x\n", rc);
 609                 mempool_free(pmb, phba->mbox_mem_pool);
 610         }
 611
 612         return 0;
 613 }
 614
 615 /**
 616  * lpfc_hba_init_link - Initialize the FC link
 617  * @phba: pointer to lpfc hba data structure.
 618  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 619  *
 620  * This routine will issue the INIT_LINK mailbox command call.
 621  * It is available to other drivers through the lpfc_hba data
 622  * structure for use as a delayed link up mechanism with the
 623  * module parameter lpfc_suppress_link_up.
 624  *
 625  * Return code
 626  *              0 - success
 627  *              Any other value - error
 628  **/
 629 int
 630 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 631 {
 632         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 633 }
 634
 635 /**
 636  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 637  * @phba: pointer to lpfc hba data structure.
 638  * @fc_topology: desired fc topology.
 639  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 640  *
 641  * This routine will issue the INIT_LINK mailbox command call.
 642  * It is available to other drivers through the lpfc_hba data
 643  * structure for use as a delayed link up mechanism with the
 644  * module parameter lpfc_suppress_link_up.
 645  *
 646  * Return code
 647  *              0 - success
 648  *              Any other value - error
 649  **/
 650 int
 651 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 652                                uint32_t flag)
 653 {
 654         struct lpfc_vport *vport = phba->pport;
 655         LPFC_MBOXQ_t *pmb;
 656         MAILBOX_t *mb;
 657         int rc;
 658
 659         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 660         if (!pmb) {
 661                 phba->link_state = LPFC_HBA_ERROR;
 662                 return -ENOMEM;
 663         }
 664         mb = &pmb->u.mb;
 665         pmb->vport = vport;
 666
 667         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 668             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 669              !(phba->lmt & LMT_1Gb)) ||
 670             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 671              !(phba->lmt & LMT_2Gb)) ||
 672             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 673              !(phba->lmt & LMT_4Gb)) ||
 674             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 675              !(phba->lmt & LMT_8Gb)) ||
 676             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 677              !(phba->lmt & LMT_10Gb)) ||
 678             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 679              !(phba->lmt & LMT_16Gb))) {
 680                 /* Reset link speed to auto */
 681                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 682                         "1302 Invalid speed for this board:%d "
 683                         "Reset link speed to auto.\n",
 684                         phba->cfg_link_speed);
 685                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 686         }
 687         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 688         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 689         if (phba->sli_rev < LPFC_SLI_REV4)
 690                 lpfc_set_loopback_flag(phba);
 691         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 692         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 693                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 694                         "0498 Adapter failed to init, mbxCmd x%x "
 695                         "INIT_LINK, mbxStatus x%x\n",
 696                         mb->mbxCommand, mb->mbxStatus);
 697                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 698                         /* Clear all interrupt enable conditions */
 699                         writel(0, phba->HCregaddr);
 700                         readl(phba->HCregaddr); /* flush */
 701                         /* Clear all pending interrupts */
 702                         writel(0xffffffff, phba->HAregaddr);
 703                         readl(phba->HAregaddr); /* flush */
 704                 }
 705                 phba->link_state = LPFC_HBA_ERROR;
 706                 if (rc != MBX_BUSY || flag == MBX_POLL)
 707                         mempool_free(pmb, phba->mbox_mem_pool);
 708                 return -EIO;
 709         }
 710         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 711         if (flag == MBX_POLL)
 712                 mempool_free(pmb, phba->mbox_mem_pool);
 713
 714         return 0;
 715 }
 716
 717 /**
 718  * lpfc_hba_down_link - this routine downs the FC link
 719  * @phba: pointer to lpfc hba data structure.
 720  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 721  *
 722  * This routine will issue the DOWN_LINK mailbox command call.
 723  * It is available to other drivers through the lpfc_hba data
 724  * structure for use to stop the link.
 725  *
 726  * Return code
 727  *              0 - success
 728  *              Any other value - error
 729  **/
 730 int
 731 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 732 {
 733         LPFC_MBOXQ_t *pmb;
 734         int rc;
 735
 736         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 737         if (!pmb) {
 738                 phba->link_state = LPFC_HBA_ERROR;
 739                 return -ENOMEM;
 740         }
 741
 742         lpfc_printf_log(phba,
 743                 KERN_ERR, LOG_INIT,
 744                 "0491 Adapter Link is disabled.\n");
 745         lpfc_down_link(phba, pmb);
 746         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 747         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 748         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 749                 lpfc_printf_log(phba,
 750                 KERN_ERR, LOG_INIT,
 751                 "2522 Adapter failed to issue DOWN_LINK"
 752                 " mbox command rc 0x%x\n", rc);
 753
 754                 mempool_free(pmb, phba->mbox_mem_pool);
 755                 return -EIO;
 756         }
 757         if (flag == MBX_POLL)
 758                 mempool_free(pmb, phba->mbox_mem_pool);
 759
 760         return 0;
 761 }
 762
 763 /**
 764  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 765  * @phba: pointer to lpfc HBA data structure.
 766  *
 767  * This routine will do LPFC uninitialization before the HBA is reset when
 768  * bringing down the SLI Layer.
 769  *
 770  * Return codes
 771  *   0 - success.
 772  *   Any other value - error.
 773  **/
 774 int
 775 lpfc_hba_down_prep(struct lpfc_hba *phba)
 776 {
 777         struct lpfc_vport **vports;
 778         int i;
 779
 780         if (phba->sli_rev <= LPFC_SLI_REV3) {
 781                 /* Disable interrupts */
 782                 writel(0, phba->HCregaddr);
 783                 readl(phba->HCregaddr); /* flush */
 784         }
 785
 786         if (phba->pport->load_flag & FC_UNLOADING)
 787                 lpfc_cleanup_discovery_resources(phba->pport);
 788         else {
 789                 vports = lpfc_create_vport_work_array(phba);
 790                 if (vports != NULL)
 791                         for (i = 0; i <= phba->max_vports &&
 792                                 vports[i] != NULL; i++)
 793                                 lpfc_cleanup_discovery_resources(vports[i]);
 794                 lpfc_destroy_vport_work_array(phba, vports);
 795         }
 796         return 0;
 797 }
 798
 799 /**
 800  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 801  * @phba: pointer to lpfc HBA data structure.
 802  *
 803  * This routine will do uninitialization after the HBA is reset when bring
 804  * down the SLI Layer.
 805  *
 806  * Return codes
 807  *   0 - success.
 808  *   Any other value - error.
 809  **/
 810 static int
 811 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 812 {
 813         struct lpfc_sli *psli = &phba->sli;
 814         struct lpfc_sli_ring *pring;
 815         struct lpfc_dmabuf *mp, *next_mp;
 816         LIST_HEAD(completions);
 817         int i;
 818
 819         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 820                 lpfc_sli_hbqbuf_free_all(phba);
 821         else {
 822                 /* Cleanup preposted buffers on the ELS ring */
 823                 pring = &psli->ring[LPFC_ELS_RING];
 824                 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 825                         list_del(&mp->list);
 826                         pring->postbufq_cnt--;
 827                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 828                         kfree(mp);
 829                 }
 830         }
 831
 832         spin_lock_irq(&phba->hbalock);
 833         for (i = 0; i < psli->num_rings; i++) {
 834                 pring = &psli->ring[i];
 835
 836                 /* At this point in time the HBA is either reset or DOA. Either
 837                  * way, nothing should be on txcmplq as it will NEVER complete.
 838                  */
 839                 list_splice_init(&pring->txcmplq, &completions);
 840                 pring->txcmplq_cnt = 0;
 841                 spin_unlock_irq(&phba->hbalock);
 842
 843                 /* Cancel all the IOCBs from the completions list */
 844                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 845                                       IOERR_SLI_ABORTED);
 846
 847                 lpfc_sli_abort_iocb_ring(phba, pring);
 848                 spin_lock_irq(&phba->hbalock);
 849         }
 850         spin_unlock_irq(&phba->hbalock);
 851
 852         return 0;
 853 }
 854
 855 /**
 856  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 857  * @phba: pointer to lpfc HBA data structure.
 858  *
 859  * This routine will do uninitialization after the HBA is reset when bring
 860  * down the SLI Layer.
 861  *
 862  * Return codes
 863  *   0 - success.
 864  *   Any other value - error.
 865  **/
 866 static int
 867 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 868 {
 869         struct lpfc_scsi_buf *psb, *psb_next;
 870         LIST_HEAD(aborts);
 871         int ret;
 872         unsigned long iflag = 0;
 873         struct lpfc_sglq *sglq_entry = NULL;
 874
 875         ret = lpfc_hba_down_post_s3(phba);
 876         if (ret)
 877                 return ret;
 878         /* At this point in time the HBA is either reset or DOA. Either
 879          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
 880          * on the lpfc_sgl_list so that it can either be freed if the
 881          * driver is unloading or reposted if the driver is restarting
 882          * the port.
 883          */
 884         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
 885                                         /* scsl_buf_list */
 886         /* abts_sgl_list_lock required because worker thread uses this
 887          * list.
 888          */
 889         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
 890         list_for_each_entry(sglq_entry,
 891                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
 892                 sglq_entry->state = SGL_FREED;
 893
 894         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
 895                         &phba->sli4_hba.lpfc_sgl_list);
 896         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
 897         /* abts_scsi_buf_list_lock required because worker thread uses this
 898          * list.
 899          */
 900         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 901         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
 902                         &aborts);
 903         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 904         spin_unlock_irq(&phba->hbalock);
 905
 906         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
 907                 psb->pCmd = NULL;
 908                 psb->status = IOSTAT_SUCCESS;
 909         }
 910         spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
 911         list_splice(&aborts, &phba->lpfc_scsi_buf_list);
 912         spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
 913         return 0;
 914 }
 915
 916 /**
 917  * lpfc_hba_down_post - Wrapper func for hba down post routine
 918  * @phba: pointer to lpfc HBA data structure.
 919  *
 920  * This routine wraps the actual SLI3 or SLI4 routine for performing
 921  * uninitialization after the HBA is reset when bring down the SLI Layer.
 922  *
 923  * Return codes
 924  *   0 - success.
 925  *   Any other value - error.
 926  **/
 927 int
 928 lpfc_hba_down_post(struct lpfc_hba *phba)
 929 {
 930         return (*phba->lpfc_hba_down_post)(phba);
 931 }
 932
 933 /**
 934  * lpfc_hb_timeout - The HBA-timer timeout handler
 935  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 936  *
 937  * This is the HBA-timer timeout handler registered to the lpfc driver. When
 938  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 939  * work-port-events bitmap and the worker thread is notified. This timeout
 940  * event will be used by the worker thread to invoke the actual timeout
 941  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 942  * be performed in the timeout handler and the HBA timeout event bit shall
 943  * be cleared by the worker thread after it has taken the event bitmap out.
 944  **/
 945 static void
 946 lpfc_hb_timeout(unsigned long ptr)
 947 {
 948         struct lpfc_hba *phba;
 949         uint32_t tmo_posted;
 950         unsigned long iflag;
 951
 952         phba = (struct lpfc_hba *)ptr;
 953
 954         /* Check for heart beat timeout conditions */
 955         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 956         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
 957         if (!tmo_posted)
 958                 phba->pport->work_port_events |= WORKER_HB_TMO;
 959         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 960
 961         /* Tell the worker thread there is work to do */
 962         if (!tmo_posted)
 963                 lpfc_worker_wake_up(phba);
 964         return;
 965 }
 966
 967 /**
 968  * lpfc_rrq_timeout - The RRQ-timer timeout handler
 969  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 970  *
 971  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
 972  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
 973  * work-port-events bitmap and the worker thread is notified. This timeout
 974  * event will be used by the worker thread to invoke the actual timeout
 975  * handler routine, lpfc_rrq_handler. Any periodical operations will
 976  * be performed in the timeout handler and the RRQ timeout event bit shall
 977  * be cleared by the worker thread after it has taken the event bitmap out.
 978  **/
 979 static void
 980 lpfc_rrq_timeout(unsigned long ptr)
 981 {
 982         struct lpfc_hba *phba;
 983         unsigned long iflag;
 984
 985         phba = (struct lpfc_hba *)ptr;
 986         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 987         phba->hba_flag |= HBA_RRQ_ACTIVE;
 988         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 989         lpfc_worker_wake_up(phba);
 990 }
 991
 992 /**
 993  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
 994  * @phba: pointer to lpfc hba data structure.
 995  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 996  *
 997  * This is the callback function to the lpfc heart-beat mailbox command.
 998  * If configured, the lpfc driver issues the heart-beat mailbox command to
 999  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1000  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1001  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1002  * heart-beat outstanding state. Once the mailbox command comes back and
1003  * no error conditions detected, the heart-beat mailbox command timer is
1004  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1005  * state is cleared for the next heart-beat. If the timer expired with the
1006  * heart-beat outstanding state set, the driver will put the HBA offline.
1007  **/
1008 static void
1009 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1010 {
1011         unsigned long drvr_flag;
1012
1013         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1014         phba->hb_outstanding = 0;
1015         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1016
1017         /* Check and reset heart-beat timer is necessary */
1018         mempool_free(pmboxq, phba->mbox_mem_pool);
1019         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1020                 !(phba->link_state == LPFC_HBA_ERROR) &&
1021                 !(phba->pport->load_flag & FC_UNLOADING))
1022                 mod_timer(&phba->hb_tmofunc,
1023                         jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1024         return;
1025 }
1026
1027 /**
1028  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1029  * @phba: pointer to lpfc hba data structure.
1030  *
1031  * This is the actual HBA-timer timeout handler to be invoked by the worker
1032  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1033  * handler performs any periodic operations needed for the device. If such
1034  * periodic event has already been attended to either in the interrupt handler
1035  * or by processing slow-ring or fast-ring events within the HBA-timer
1036  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1037  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1038  * is configured and there is no heart-beat mailbox command outstanding, a
1039  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1040  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1041  * to offline.
1042  **/
1043 void
1044 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1045 {
1046         struct lpfc_vport **vports;
1047         LPFC_MBOXQ_t *pmboxq;
1048         struct lpfc_dmabuf *buf_ptr;
1049         int retval, i;
1050         struct lpfc_sli *psli = &phba->sli;
1051         LIST_HEAD(completions);
1052
1053         vports = lpfc_create_vport_work_array(phba);
1054         if (vports != NULL)
1055                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1056                         lpfc_rcv_seq_check_edtov(vports[i]);
1057         lpfc_destroy_vport_work_array(phba, vports);
1058
1059         if ((phba->link_state == LPFC_HBA_ERROR) ||
1060                 (phba->pport->load_flag & FC_UNLOADING) ||
1061                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1062                 return;
1063
1064         spin_lock_irq(&phba->pport->work_port_lock);
1065
1066         if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1067                 jiffies)) {
1068                 spin_unlock_irq(&phba->pport->work_port_lock);
1069                 if (!phba->hb_outstanding)
1070                         mod_timer(&phba->hb_tmofunc,
1071                                 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1072                 else
1073                         mod_timer(&phba->hb_tmofunc,
1074                                 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1075                 return;
1076         }
1077         spin_unlock_irq(&phba->pport->work_port_lock);
1078
1079         if (phba->elsbuf_cnt &&
1080                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1081                 spin_lock_irq(&phba->hbalock);
1082                 list_splice_init(&phba->elsbuf, &completions);
1083                 phba->elsbuf_cnt = 0;
1084                 phba->elsbuf_prev_cnt = 0;
1085                 spin_unlock_irq(&phba->hbalock);
1086
1087                 while (!list_empty(&completions)) {
1088                         list_remove_head(&completions, buf_ptr,
1089                                 struct lpfc_dmabuf, list);
1090                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1091                         kfree(buf_ptr);
1092                 }
1093         }
1094         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1095
1096         /* If there is no heart beat outstanding, issue a heartbeat command */
1097         if (phba->cfg_enable_hba_heartbeat) {
1098                 if (!phba->hb_outstanding) {
1099                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1100                                 (list_empty(&psli->mboxq))) {
1101                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1102                                                         GFP_KERNEL);
1103                                 if (!pmboxq) {
1104                                         mod_timer(&phba->hb_tmofunc,
1105                                                  jiffies +
1106                                                  HZ * LPFC_HB_MBOX_INTERVAL);
1107                                         return;
1108                                 }
1109
1110                                 lpfc_heart_beat(phba, pmboxq);
1111                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1112                                 pmboxq->vport = phba->pport;
1113                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1114                                                 MBX_NOWAIT);
1115
1116                                 if (retval != MBX_BUSY &&
1117                                         retval != MBX_SUCCESS) {
1118                                         mempool_free(pmboxq,
1119                                                         phba->mbox_mem_pool);
1120                                         mod_timer(&phba->hb_tmofunc,
1121                                                 jiffies +
1122                                                 HZ * LPFC_HB_MBOX_INTERVAL);
1123                                         return;
1124                                 }
1125                                 phba->skipped_hb = 0;
1126                                 phba->hb_outstanding = 1;
1127                         } else if (time_before_eq(phba->last_completion_time,
1128                                         phba->skipped_hb)) {
1129                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1130                                         "2857 Last completion time not "
1131                                         " updated in %d ms\n",
1132                                         jiffies_to_msecs(jiffies
1133                                                  - phba->last_completion_time));
1134                         } else
1135                                 phba->skipped_hb = jiffies;
1136
1137                         mod_timer(&phba->hb_tmofunc,
1138                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1139                         return;
1140                 } else {
1141                         /*
1142                         * If heart beat timeout called with hb_outstanding set
1143                         * we need to give the hb mailbox cmd a chance to
1144                         * complete or TMO.
1145                         */
1146                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1147                                         "0459 Adapter heartbeat still out"
1148                                         "standing:last compl time was %d ms.\n",
1149                                         jiffies_to_msecs(jiffies
1150                                                  - phba->last_completion_time));
1151                         mod_timer(&phba->hb_tmofunc,
1152                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1153                 }
1154         }
1155 }
1156
1157 /**
1158  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1159  * @phba: pointer to lpfc hba data structure.
1160  *
1161  * This routine is called to bring the HBA offline when HBA hardware error
1162  * other than Port Error 6 has been detected.
1163  **/
1164 static void
1165 lpfc_offline_eratt(struct lpfc_hba *phba)
1166 {
1167         struct lpfc_sli   *psli = &phba->sli;
1168
1169         spin_lock_irq(&phba->hbalock);
1170         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1171         spin_unlock_irq(&phba->hbalock);
1172         lpfc_offline_prep(phba);
1173
1174         lpfc_offline(phba);
1175         lpfc_reset_barrier(phba);
1176         spin_lock_irq(&phba->hbalock);
1177         lpfc_sli_brdreset(phba);
1178         spin_unlock_irq(&phba->hbalock);
1179         lpfc_hba_down_post(phba);
1180         lpfc_sli_brdready(phba, HS_MBRDY);
1181         lpfc_unblock_mgmt_io(phba);
1182         phba->link_state = LPFC_HBA_ERROR;
1183         return;
1184 }
1185
1186 /**
1187  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1188  * @phba: pointer to lpfc hba data structure.
1189  *
1190  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1191  * other than Port Error 6 has been detected.
1192  **/
1193 static void
1194 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1195 {
1196         lpfc_offline_prep(phba);
1197         lpfc_offline(phba);
1198         lpfc_sli4_brdreset(phba);
1199         lpfc_hba_down_post(phba);
1200         lpfc_sli4_post_status_check(phba);
1201         lpfc_unblock_mgmt_io(phba);
1202         phba->link_state = LPFC_HBA_ERROR;
1203 }
1204
1205 /**
1206  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1207  * @phba: pointer to lpfc hba data structure.
1208  *
1209  * This routine is invoked to handle the deferred HBA hardware error
1210  * conditions. This type of error is indicated by HBA by setting ER1
1211  * and another ER bit in the host status register. The driver will
1212  * wait until the ER1 bit clears before handling the error condition.
1213  **/
1214 static void
1215 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1216 {
1217         uint32_t old_host_status = phba->work_hs;
1218         struct lpfc_sli_ring  *pring;
1219         struct lpfc_sli *psli = &phba->sli;
1220
1221         /* If the pci channel is offline, ignore possible errors,
1222          * since we cannot communicate with the pci card anyway.
1223          */
1224         if (pci_channel_offline(phba->pcidev)) {
1225                 spin_lock_irq(&phba->hbalock);
1226                 phba->hba_flag &= ~DEFER_ERATT;
1227                 spin_unlock_irq(&phba->hbalock);
1228                 return;
1229         }
1230
1231         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1232                 "0479 Deferred Adapter Hardware Error "
1233                 "Data: x%x x%x x%x\n",
1234                 phba->work_hs,
1235                 phba->work_status[0], phba->work_status[1]);
1236
1237         spin_lock_irq(&phba->hbalock);
1238         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1239         spin_unlock_irq(&phba->hbalock);
1240
1241
1242         /*
1243          * Firmware stops when it triggred erratt. That could cause the I/Os
1244          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1245          * SCSI layer retry it after re-establishing link.
1246          */
1247         pring = &psli->ring[psli->fcp_ring];
1248         lpfc_sli_abort_iocb_ring(phba, pring);
1249
1250         /*
1251          * There was a firmware error. Take the hba offline and then
1252          * attempt to restart it.
1253          */
1254         lpfc_offline_prep(phba);
1255         lpfc_offline(phba);
1256
1257         /* Wait for the ER1 bit to clear.*/
1258         while (phba->work_hs & HS_FFER1) {
1259                 msleep(100);
1260                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1261                         phba->work_hs = UNPLUG_ERR ;
1262                         break;
1263                 }
1264                 /* If driver is unloading let the worker thread continue */
1265                 if (phba->pport->load_flag & FC_UNLOADING) {
1266                         phba->work_hs = 0;
1267                         break;
1268                 }
1269         }
1270
1271         /*
1272          * This is to ptrotect against a race condition in which
1273          * first write to the host attention register clear the
1274          * host status register.
1275          */
1276         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1277                 phba->work_hs = old_host_status & ~HS_FFER1;
1278
1279         spin_lock_irq(&phba->hbalock);
1280         phba->hba_flag &= ~DEFER_ERATT;
1281         spin_unlock_irq(&phba->hbalock);
1282         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1283         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1284 }
1285
1286 static void
1287 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1288 {
1289         struct lpfc_board_event_header board_event;
1290         struct Scsi_Host *shost;
1291
1292         board_event.event_type = FC_REG_BOARD_EVENT;
1293         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1294         shost = lpfc_shost_from_vport(phba->pport);
1295         fc_host_post_vendor_event(shost, fc_get_event_number(),
1296                                   sizeof(board_event),
1297                                   (char *) &board_event,
1298                                   LPFC_NL_VENDOR_ID);
1299 }
1300
1301 /**
1302  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1303  * @phba: pointer to lpfc hba data structure.
1304  *
1305  * This routine is invoked to handle the following HBA hardware error
1306  * conditions:
1307  * 1 - HBA error attention interrupt
1308  * 2 - DMA ring index out of range
1309  * 3 - Mailbox command came back as unknown
1310  **/
1311 static void
1312 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1313 {
1314         struct lpfc_vport *vport = phba->pport;
1315         struct lpfc_sli   *psli = &phba->sli;
1316         struct lpfc_sli_ring  *pring;
1317         uint32_t event_data;
1318         unsigned long temperature;
1319         struct temp_event temp_event_data;
1320         struct Scsi_Host  *shost;
1321
1322         /* If the pci channel is offline, ignore possible errors,
1323          * since we cannot communicate with the pci card anyway.
1324          */
1325         if (pci_channel_offline(phba->pcidev)) {
1326                 spin_lock_irq(&phba->hbalock);
1327                 phba->hba_flag &= ~DEFER_ERATT;
1328                 spin_unlock_irq(&phba->hbalock);
1329                 return;
1330         }
1331
1332         /* If resets are disabled then leave the HBA alone and return */
1333         if (!phba->cfg_enable_hba_reset)
1334                 return;
1335
1336         /* Send an internal error event to mgmt application */
1337         lpfc_board_errevt_to_mgmt(phba);
1338
1339         if (phba->hba_flag & DEFER_ERATT)
1340                 lpfc_handle_deferred_eratt(phba);
1341
1342         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1343                 if (phba->work_hs & HS_FFER6)
1344                         /* Re-establishing Link */
1345                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1346                                         "1301 Re-establishing Link "
1347                                         "Data: x%x x%x x%x\n",
1348                                         phba->work_hs, phba->work_status[0],
1349                                         phba->work_status[1]);
1350                 if (phba->work_hs & HS_FFER8)
1351                         /* Device Zeroization */
1352                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1353                                         "2861 Host Authentication device "
1354                                         "zeroization Data:x%x x%x x%x\n",
1355                                         phba->work_hs, phba->work_status[0],
1356                                         phba->work_status[1]);
1357
1358                 spin_lock_irq(&phba->hbalock);
1359                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1360                 spin_unlock_irq(&phba->hbalock);
1361
1362                 /*
1363                 * Firmware stops when it triggled erratt with HS_FFER6.
1364                 * That could cause the I/Os dropped by the firmware.
1365                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1366                 * retry it after re-establishing link.
1367                 */
1368                 pring = &psli->ring[psli->fcp_ring];
1369                 lpfc_sli_abort_iocb_ring(phba, pring);
1370
1371                 /*
1372                  * There was a firmware error.  Take the hba offline and then
1373                  * attempt to restart it.
1374                  */
1375                 lpfc_offline_prep(phba);
1376                 lpfc_offline(phba);
1377                 lpfc_sli_brdrestart(phba);
1378                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1379                         lpfc_unblock_mgmt_io(phba);
1380                         return;
1381                 }
1382                 lpfc_unblock_mgmt_io(phba);
1383         } else if (phba->work_hs & HS_CRIT_TEMP) {
1384                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1385                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1386                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1387                 temp_event_data.data = (uint32_t)temperature;
1388
1389                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1390                                 "0406 Adapter maximum temperature exceeded "
1391                                 "(%ld), taking this port offline "
1392                                 "Data: x%x x%x x%x\n",
1393                                 temperature, phba->work_hs,
1394                                 phba->work_status[0], phba->work_status[1]);
1395
1396                 shost = lpfc_shost_from_vport(phba->pport);
1397                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1398                                           sizeof(temp_event_data),
1399                                           (char *) &temp_event_data,
1400                                           SCSI_NL_VID_TYPE_PCI
1401                                           | PCI_VENDOR_ID_EMULEX);
1402
1403                 spin_lock_irq(&phba->hbalock);
1404                 phba->over_temp_state = HBA_OVER_TEMP;
1405                 spin_unlock_irq(&phba->hbalock);
1406                 lpfc_offline_eratt(phba);
1407
1408         } else {
1409                 /* The if clause above forces this code path when the status
1410                  * failure is a value other than FFER6. Do not call the offline
1411                  * twice. This is the adapter hardware error path.
1412                  */
1413                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1414                                 "0457 Adapter Hardware Error "
1415                                 "Data: x%x x%x x%x\n",
1416                                 phba->work_hs,
1417                                 phba->work_status[0], phba->work_status[1]);
1418
1419                 event_data = FC_REG_DUMP_EVENT;
1420                 shost = lpfc_shost_from_vport(vport);
1421                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1422                                 sizeof(event_data), (char *) &event_data,
1423                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1424
1425                 lpfc_offline_eratt(phba);
1426         }
1427         return;
1428 }
1429
1430 /**
1431  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1432  * @phba: pointer to lpfc hba data structure.
1433  *
1434  * This routine is invoked to handle the SLI4 HBA hardware error attention
1435  * conditions.
1436  **/
1437 static void
1438 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1439 {
1440         struct lpfc_vport *vport = phba->pport;
1441         uint32_t event_data;
1442         struct Scsi_Host *shost;
1443         uint32_t if_type;
1444         struct lpfc_register portstat_reg = {0};
1445         uint32_t reg_err1, reg_err2;
1446         uint32_t uerrlo_reg, uemasklo_reg;
1447         uint32_t pci_rd_rc1, pci_rd_rc2;
1448         int rc;
1449
1450         /* If the pci channel is offline, ignore possible errors, since
1451          * we cannot communicate with the pci card anyway.
1452          */
1453         if (pci_channel_offline(phba->pcidev))
1454                 return;
1455         /* If resets are disabled then leave the HBA alone and return */
1456         if (!phba->cfg_enable_hba_reset)
1457                 return;
1458
1459         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1460         switch (if_type) {
1461         case LPFC_SLI_INTF_IF_TYPE_0:
1462                 pci_rd_rc1 = lpfc_readl(
1463                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1464                                 &uerrlo_reg);
1465                 pci_rd_rc2 = lpfc_readl(
1466                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1467                                 &uemasklo_reg);
1468                 /* consider PCI bus read error as pci_channel_offline */
1469                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1470                         return;
1471                 lpfc_sli4_offline_eratt(phba);
1472                 break;
1473         case LPFC_SLI_INTF_IF_TYPE_2:
1474                 pci_rd_rc1 = lpfc_readl(
1475                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1476                                 &portstat_reg.word0);
1477                 /* consider PCI bus read error as pci_channel_offline */
1478                 if (pci_rd_rc1 == -EIO) {
1479                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1480                                 "3151 PCI bus read access failure: x%x\n",
1481                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1482                         return;
1483                 }
1484                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1485                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1486                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1487                         /* TODO: Register for Overtemp async events. */
1488                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1489                                 "2889 Port Overtemperature event, "
1490                                 "taking port offline\n");
1491                         spin_lock_irq(&phba->hbalock);
1492                         phba->over_temp_state = HBA_OVER_TEMP;
1493                         spin_unlock_irq(&phba->hbalock);
1494                         lpfc_sli4_offline_eratt(phba);
1495                         break;
1496                 }
1497                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1498                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART)
1499                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1500                                         "3143 Port Down: Firmware Restarted\n");
1501                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1502                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1503                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1504                                         "3144 Port Down: Debug Dump\n");
1505                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1506                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1507                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1508                                         "3145 Port Down: Provisioning\n");
1509                 /*
1510                  * On error status condition, driver need to wait for port
1511                  * ready before performing reset.
1512                  */
1513                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1514                 if (!rc) {
1515                         /* need reset: attempt for port recovery */
1516                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1517                                         "2887 Reset Needed: Attempting Port "
1518                                         "Recovery...\n");
1519                         lpfc_offline_prep(phba);
1520                         lpfc_offline(phba);
1521                         lpfc_sli_brdrestart(phba);
1522                         if (lpfc_online(phba) == 0) {
1523                                 lpfc_unblock_mgmt_io(phba);
1524                                 /* don't report event on forced debug dump */
1525                                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1526                                     reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1527                                         return;
1528                                 else
1529                                         break;
1530                         }
1531                         /* fall through for not able to recover */
1532                 }
1533                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1534                                 "3152 Unrecoverable error, bring the port "
1535                                 "offline\n");
1536                 lpfc_sli4_offline_eratt(phba);
1537                 break;
1538         case LPFC_SLI_INTF_IF_TYPE_1:
1539         default:
1540                 break;
1541         }
1542         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1543                         "3123 Report dump event to upper layer\n");
1544         /* Send an internal error event to mgmt application */
1545         lpfc_board_errevt_to_mgmt(phba);
1546
1547         event_data = FC_REG_DUMP_EVENT;
1548         shost = lpfc_shost_from_vport(vport);
1549         fc_host_post_vendor_event(shost, fc_get_event_number(),
1550                                   sizeof(event_data), (char *) &event_data,
1551                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1552 }
1553
1554 /**
1555  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1556  * @phba: pointer to lpfc HBA data structure.
1557  *
1558  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1559  * routine from the API jump table function pointer from the lpfc_hba struct.
1560  *
1561  * Return codes
1562  *   0 - success.
1563  *   Any other value - error.
1564  **/
1565 void
1566 lpfc_handle_eratt(struct lpfc_hba *phba)
1567 {
1568         (*phba->lpfc_handle_eratt)(phba);
1569 }
1570
1571 /**
1572  * lpfc_handle_latt - The HBA link event handler
1573  * @phba: pointer to lpfc hba data structure.
1574  *
1575  * This routine is invoked from the worker thread to handle a HBA host
1576  * attention link event.
1577  **/
1578 void
1579 lpfc_handle_latt(struct lpfc_hba *phba)
1580 {
1581         struct lpfc_vport *vport = phba->pport;
1582         struct lpfc_sli   *psli = &phba->sli;
1583         LPFC_MBOXQ_t *pmb;
1584         volatile uint32_t control;
1585         struct lpfc_dmabuf *mp;
1586         int rc = 0;
1587
1588         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1589         if (!pmb) {
1590                 rc = 1;
1591                 goto lpfc_handle_latt_err_exit;
1592         }
1593
1594         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1595         if (!mp) {
1596                 rc = 2;
1597                 goto lpfc_handle_latt_free_pmb;
1598         }
1599
1600         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1601         if (!mp->virt) {
1602                 rc = 3;
1603                 goto lpfc_handle_latt_free_mp;
1604         }
1605
1606         /* Cleanup any outstanding ELS commands */
1607         lpfc_els_flush_all_cmd(phba);
1608
1609         psli->slistat.link_event++;
1610         lpfc_read_topology(phba, pmb, mp);
1611         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1612         pmb->vport = vport;
1613         /* Block ELS IOCBs until we have processed this mbox command */
1614         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1615         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1616         if (rc == MBX_NOT_FINISHED) {
1617                 rc = 4;
1618                 goto lpfc_handle_latt_free_mbuf;
1619         }
1620
1621         /* Clear Link Attention in HA REG */
1622         spin_lock_irq(&phba->hbalock);
1623         writel(HA_LATT, phba->HAregaddr);
1624         readl(phba->HAregaddr); /* flush */
1625         spin_unlock_irq(&phba->hbalock);
1626
1627         return;
1628
1629 lpfc_handle_latt_free_mbuf:
1630         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1631         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1632 lpfc_handle_latt_free_mp:
1633         kfree(mp);
1634 lpfc_handle_latt_free_pmb:
1635         mempool_free(pmb, phba->mbox_mem_pool);
1636 lpfc_handle_latt_err_exit:
1637         /* Enable Link attention interrupts */
1638         spin_lock_irq(&phba->hbalock);
1639         psli->sli_flag |= LPFC_PROCESS_LA;
1640         control = readl(phba->HCregaddr);
1641         control |= HC_LAINT_ENA;
1642         writel(control, phba->HCregaddr);
1643         readl(phba->HCregaddr); /* flush */
1644
1645         /* Clear Link Attention in HA REG */
1646         writel(HA_LATT, phba->HAregaddr);
1647         readl(phba->HAregaddr); /* flush */
1648         spin_unlock_irq(&phba->hbalock);
1649         lpfc_linkdown(phba);
1650         phba->link_state = LPFC_HBA_ERROR;
1651
1652         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1653                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1654
1655         return;
1656 }
1657
1658 /**
1659  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1660  * @phba: pointer to lpfc hba data structure.
1661  * @vpd: pointer to the vital product data.
1662  * @len: length of the vital product data in bytes.
1663  *
1664  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1665  * an array of characters. In this routine, the ModelName, ProgramType, and
1666  * ModelDesc, etc. fields of the phba data structure will be populated.
1667  *
1668  * Return codes
1669  *   0 - pointer to the VPD passed in is NULL
1670  *   1 - success
1671  **/
1672 int
1673 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1674 {
1675         uint8_t lenlo, lenhi;
1676         int Length;
1677         int i, j;
1678         int finished = 0;
1679         int index = 0;
1680
1681         if (!vpd)
1682                 return 0;
1683
1684         /* Vital Product */
1685         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1686                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1687                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1688                         (uint32_t) vpd[3]);
1689         while (!finished && (index < (len - 4))) {
1690                 switch (vpd[index]) {
1691                 case 0x82:
1692                 case 0x91:
1693                         index += 1;
1694                         lenlo = vpd[index];
1695                         index += 1;
1696                         lenhi = vpd[index];
1697                         index += 1;
1698                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1699                         index += i;
1700                         break;
1701                 case 0x90:
1702                         index += 1;
1703                         lenlo = vpd[index];
1704                         index += 1;
1705                         lenhi = vpd[index];
1706                         index += 1;
1707                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1708                         if (Length > len - index)
1709                                 Length = len - index;
1710                         while (Length > 0) {
1711                         /* Look for Serial Number */
1712                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1713                                 index += 2;
1714                                 i = vpd[index];
1715                                 index += 1;
1716                                 j = 0;
1717                                 Length -= (3+i);
1718                                 while(i--) {
1719                                         phba->SerialNumber[j++] = vpd[index++];
1720                                         if (j == 31)
1721                                                 break;
1722                                 }
1723                                 phba->SerialNumber[j] = 0;
1724                                 continue;
1725                         }
1726                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1727                                 phba->vpd_flag |= VPD_MODEL_DESC;
1728                                 index += 2;
1729                                 i = vpd[index];
1730                                 index += 1;
1731                                 j = 0;
1732                                 Length -= (3+i);
1733                                 while(i--) {
1734                                         phba->ModelDesc[j++] = vpd[index++];
1735                                         if (j == 255)
1736                                                 break;
1737                                 }
1738                                 phba->ModelDesc[j] = 0;
1739                                 continue;
1740                         }
1741                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1742                                 phba->vpd_flag |= VPD_MODEL_NAME;
1743                                 index += 2;
1744                                 i = vpd[index];
1745                                 index += 1;
1746                                 j = 0;
1747                                 Length -= (3+i);
1748                                 while(i--) {
1749                                         phba->ModelName[j++] = vpd[index++];
1750                                         if (j == 79)
1751                                                 break;
1752                                 }
1753                                 phba->ModelName[j] = 0;
1754                                 continue;
1755                         }
1756                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1757                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1758                                 index += 2;
1759                                 i = vpd[index];
1760                                 index += 1;
1761                                 j = 0;
1762                                 Length -= (3+i);
1763                                 while(i--) {
1764                                         phba->ProgramType[j++] = vpd[index++];
1765                                         if (j == 255)
1766                                                 break;
1767                                 }
1768                                 phba->ProgramType[j] = 0;
1769                                 continue;
1770                         }
1771                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1772                                 phba->vpd_flag |= VPD_PORT;
1773                                 index += 2;
1774                                 i = vpd[index];
1775                                 index += 1;
1776                                 j = 0;
1777                                 Length -= (3+i);
1778                                 while(i--) {
1779                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
1780                                             (phba->sli4_hba.pport_name_sta ==
1781                                              LPFC_SLI4_PPNAME_GET)) {
1782                                                 j++;
1783                                                 index++;
1784                                         } else
1785                                                 phba->Port[j++] = vpd[index++];
1786                                         if (j == 19)
1787                                                 break;
1788                                 }
1789                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1790                                     (phba->sli4_hba.pport_name_sta ==
1791                                      LPFC_SLI4_PPNAME_NON))
1792                                         phba->Port[j] = 0;
1793                                 continue;
1794                         }
1795                         else {
1796                                 index += 2;
1797                                 i = vpd[index];
1798                                 index += 1;
1799                                 index += i;
1800                                 Length -= (3 + i);
1801                         }
1802                 }
1803                 finished = 0;
1804                 break;
1805                 case 0x78:
1806                         finished = 1;
1807                         break;
1808                 default:
1809                         index ++;
1810                         break;
1811                 }
1812         }
1813
1814         return(1);
1815 }
1816
1817 /**
1818  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1819  * @phba: pointer to lpfc hba data structure.
1820  * @mdp: pointer to the data structure to hold the derived model name.
1821  * @descp: pointer to the data structure to hold the derived description.
1822  *
1823  * This routine retrieves HBA's description based on its registered PCI device
1824  * ID. The @descp passed into this function points to an array of 256 chars. It
1825  * shall be returned with the model name, maximum speed, and the host bus type.
1826  * The @mdp passed into this function points to an array of 80 chars. When the
1827  * function returns, the @mdp will be filled with the model name.
1828  **/
1829 static void
1830 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1831 {
1832         lpfc_vpd_t *vp;
1833         uint16_t dev_id = phba->pcidev->device;
1834         int max_speed;
1835         int GE = 0;
1836         int oneConnect = 0; /* default is not a oneConnect */
1837         struct {
1838                 char *name;
1839                 char *bus;
1840                 char *function;
1841         } m = {"<Unknown>", "", ""};
1842
1843         if (mdp && mdp[0] != '\0'
1844                 && descp && descp[0] != '\0')
1845                 return;
1846
1847         if (phba->lmt & LMT_16Gb)
1848                 max_speed = 16;
1849         else if (phba->lmt & LMT_10Gb)
1850                 max_speed = 10;
1851         else if (phba->lmt & LMT_8Gb)
1852                 max_speed = 8;
1853         else if (phba->lmt & LMT_4Gb)
1854                 max_speed = 4;
1855         else if (phba->lmt & LMT_2Gb)
1856                 max_speed = 2;
1857         else
1858                 max_speed = 1;
1859
1860         vp = &phba->vpd;
1861
1862         switch (dev_id) {
1863         case PCI_DEVICE_ID_FIREFLY:
1864                 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1865                 break;
1866         case PCI_DEVICE_ID_SUPERFLY:
1867                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1868                         m = (typeof(m)){"LP7000", "PCI",
1869                                         "Fibre Channel Adapter"};
1870                 else
1871                         m = (typeof(m)){"LP7000E", "PCI",
1872                                         "Fibre Channel Adapter"};
1873                 break;
1874         case PCI_DEVICE_ID_DRAGONFLY:
1875                 m = (typeof(m)){"LP8000", "PCI",
1876                                 "Fibre Channel Adapter"};
1877                 break;
1878         case PCI_DEVICE_ID_CENTAUR:
1879                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1880                         m = (typeof(m)){"LP9002", "PCI",
1881                                         "Fibre Channel Adapter"};
1882                 else
1883                         m = (typeof(m)){"LP9000", "PCI",
1884                                         "Fibre Channel Adapter"};
1885                 break;
1886         case PCI_DEVICE_ID_RFLY:
1887                 m = (typeof(m)){"LP952", "PCI",
1888                                 "Fibre Channel Adapter"};
1889                 break;
1890         case PCI_DEVICE_ID_PEGASUS:
1891                 m = (typeof(m)){"LP9802", "PCI-X",
1892                                 "Fibre Channel Adapter"};
1893                 break;
1894         case PCI_DEVICE_ID_THOR:
1895                 m = (typeof(m)){"LP10000", "PCI-X",
1896                                 "Fibre Channel Adapter"};
1897                 break;
1898         case PCI_DEVICE_ID_VIPER:
1899                 m = (typeof(m)){"LPX1000",  "PCI-X",
1900                                 "Fibre Channel Adapter"};
1901                 break;
1902         case PCI_DEVICE_ID_PFLY:
1903                 m = (typeof(m)){"LP982", "PCI-X",
1904                                 "Fibre Channel Adapter"};
1905                 break;
1906         case PCI_DEVICE_ID_TFLY:
1907                 m = (typeof(m)){"LP1050", "PCI-X",
1908                                 "Fibre Channel Adapter"};
1909                 break;
1910         case PCI_DEVICE_ID_HELIOS:
1911                 m = (typeof(m)){"LP11000", "PCI-X2",
1912                                 "Fibre Channel Adapter"};
1913                 break;
1914         case PCI_DEVICE_ID_HELIOS_SCSP:
1915                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1916                                 "Fibre Channel Adapter"};
1917                 break;
1918         case PCI_DEVICE_ID_HELIOS_DCSP:
1919                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
1920                                 "Fibre Channel Adapter"};
1921                 break;
1922         case PCI_DEVICE_ID_NEPTUNE:
1923                 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1924                 break;
1925         case PCI_DEVICE_ID_NEPTUNE_SCSP:
1926                 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1927                 break;
1928         case PCI_DEVICE_ID_NEPTUNE_DCSP:
1929                 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1930                 break;
1931         case PCI_DEVICE_ID_BMID:
1932                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1933                 break;
1934         case PCI_DEVICE_ID_BSMB:
1935                 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1936                 break;
1937         case PCI_DEVICE_ID_ZEPHYR:
1938                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1939                 break;
1940         case PCI_DEVICE_ID_ZEPHYR_SCSP:
1941                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1942                 break;
1943         case PCI_DEVICE_ID_ZEPHYR_DCSP:
1944                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1945                 GE = 1;
1946                 break;
1947         case PCI_DEVICE_ID_ZMID:
1948                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1949                 break;
1950         case PCI_DEVICE_ID_ZSMB:
1951                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1952                 break;
1953         case PCI_DEVICE_ID_LP101:
1954                 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1955                 break;
1956         case PCI_DEVICE_ID_LP10000S:
1957                 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1958                 break;
1959         case PCI_DEVICE_ID_LP11000S:
1960                 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1961                 break;
1962         case PCI_DEVICE_ID_LPE11000S:
1963                 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1964                 break;
1965         case PCI_DEVICE_ID_SAT:
1966                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1967                 break;
1968         case PCI_DEVICE_ID_SAT_MID:
1969                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1970                 break;
1971         case PCI_DEVICE_ID_SAT_SMB:
1972                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1973                 break;
1974         case PCI_DEVICE_ID_SAT_DCSP:
1975                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1976                 break;
1977         case PCI_DEVICE_ID_SAT_SCSP:
1978                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1979                 break;
1980         case PCI_DEVICE_ID_SAT_S:
1981                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1982                 break;
1983         case PCI_DEVICE_ID_HORNET:
1984                 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1985                 GE = 1;
1986                 break;
1987         case PCI_DEVICE_ID_PROTEUS_VF:
1988                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1989                                 "Fibre Channel Adapter"};
1990                 break;
1991         case PCI_DEVICE_ID_PROTEUS_PF:
1992                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1993                                 "Fibre Channel Adapter"};
1994                 break;
1995         case PCI_DEVICE_ID_PROTEUS_S:
1996                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1997                                 "Fibre Channel Adapter"};
1998                 break;
1999         case PCI_DEVICE_ID_TIGERSHARK:
2000                 oneConnect = 1;
2001                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2002                 break;
2003         case PCI_DEVICE_ID_TOMCAT:
2004                 oneConnect = 1;
2005                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2006                 break;
2007         case PCI_DEVICE_ID_FALCON:
2008                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2009                                 "EmulexSecure Fibre"};
2010                 break;
2011         case PCI_DEVICE_ID_BALIUS:
2012                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2013                                 "Fibre Channel Adapter"};
2014                 break;
2015         case PCI_DEVICE_ID_LANCER_FC:
2016         case PCI_DEVICE_ID_LANCER_FC_VF:
2017                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2018                 break;
2019         case PCI_DEVICE_ID_LANCER_FCOE:
2020         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2021                 oneConnect = 1;
2022                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2023                 break;
2024         default:
2025                 m = (typeof(m)){"Unknown", "", ""};
2026                 break;
2027         }
2028
2029         if (mdp && mdp[0] == '\0')
2030                 snprintf(mdp, 79,"%s", m.name);
2031         /*
2032          * oneConnect hba requires special processing, they are all initiators
2033          * and we put the port number on the end
2034          */
2035         if (descp && descp[0] == '\0') {
2036                 if (oneConnect)
2037                         snprintf(descp, 255,
2038                                 "Emulex OneConnect %s, %s Initiator, Port %s",
2039                                 m.name, m.function,
2040                                 phba->Port);
2041                 else
2042                         snprintf(descp, 255,
2043                                 "Emulex %s %d%s %s %s",
2044                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2045                                 m.bus, m.function);
2046         }
2047 }
2048
2049 /**
2050  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2051  * @phba: pointer to lpfc hba data structure.
2052  * @pring: pointer to a IOCB ring.
2053  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2054  *
2055  * This routine posts a given number of IOCBs with the associated DMA buffer
2056  * descriptors specified by the cnt argument to the given IOCB ring.
2057  *
2058  * Return codes
2059  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2060  **/
2061 int
2062 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2063 {
2064         IOCB_t *icmd;
2065         struct lpfc_iocbq *iocb;
2066         struct lpfc_dmabuf *mp1, *mp2;
2067
2068         cnt += pring->missbufcnt;
2069
2070         /* While there are buffers to post */
2071         while (cnt > 0) {
2072                 /* Allocate buffer for  command iocb */
2073                 iocb = lpfc_sli_get_iocbq(phba);
2074                 if (iocb == NULL) {
2075                         pring->missbufcnt = cnt;
2076                         return cnt;
2077                 }
2078                 icmd = &iocb->iocb;
2079
2080                 /* 2 buffers can be posted per command */
2081                 /* Allocate buffer to post */
2082                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2083                 if (mp1)
2084                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2085                 if (!mp1 || !mp1->virt) {
2086                         kfree(mp1);
2087                         lpfc_sli_release_iocbq(phba, iocb);
2088                         pring->missbufcnt = cnt;
2089                         return cnt;
2090                 }
2091
2092                 INIT_LIST_HEAD(&mp1->list);
2093                 /* Allocate buffer to post */
2094                 if (cnt > 1) {
2095                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2096                         if (mp2)
2097                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2098                                                             &mp2->phys);
2099                         if (!mp2 || !mp2->virt) {
2100                                 kfree(mp2);
2101                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2102                                 kfree(mp1);
2103                                 lpfc_sli_release_iocbq(phba, iocb);
2104                                 pring->missbufcnt = cnt;
2105                                 return cnt;
2106                         }
2107
2108                         INIT_LIST_HEAD(&mp2->list);
2109                 } else {
2110                         mp2 = NULL;
2111                 }
2112
2113                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2114                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2115                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2116                 icmd->ulpBdeCount = 1;
2117                 cnt--;
2118                 if (mp2) {
2119                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2120                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2121                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2122                         cnt--;
2123                         icmd->ulpBdeCount = 2;
2124                 }
2125
2126                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2127                 icmd->ulpLe = 1;
2128
2129                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2130                     IOCB_ERROR) {
2131                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2132                         kfree(mp1);
2133                         cnt++;
2134                         if (mp2) {
2135                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2136                                 kfree(mp2);
2137                                 cnt++;
2138                         }
2139                         lpfc_sli_release_iocbq(phba, iocb);
2140                         pring->missbufcnt = cnt;
2141                         return cnt;
2142                 }
2143                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2144                 if (mp2)
2145                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2146         }
2147         pring->missbufcnt = 0;
2148         return 0;
2149 }
2150
2151 /**
2152  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2153  * @phba: pointer to lpfc hba data structure.
2154  *
2155  * This routine posts initial receive IOCB buffers to the ELS ring. The
2156  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2157  * set to 64 IOCBs.
2158  *
2159  * Return codes
2160  *   0 - success (currently always success)
2161  **/
2162 static int
2163 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2164 {
2165         struct lpfc_sli *psli = &phba->sli;
2166
2167         /* Ring 0, ELS / CT buffers */
2168         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2169         /* Ring 2 - FCP no buffers needed */
2170
2171         return 0;
2172 }
2173
2174 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2175
2176 /**
2177  * lpfc_sha_init - Set up initial array of hash table entries
2178  * @HashResultPointer: pointer to an array as hash table.
2179  *
2180  * This routine sets up the initial values to the array of hash table entries
2181  * for the LC HBAs.
2182  **/
2183 static void
2184 lpfc_sha_init(uint32_t * HashResultPointer)
2185 {
2186         HashResultPointer[0] = 0x67452301;
2187         HashResultPointer[1] = 0xEFCDAB89;
2188         HashResultPointer[2] = 0x98BADCFE;
2189         HashResultPointer[3] = 0x10325476;
2190         HashResultPointer[4] = 0xC3D2E1F0;
2191 }
2192
2193 /**
2194  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2195  * @HashResultPointer: pointer to an initial/result hash table.
2196  * @HashWorkingPointer: pointer to an working hash table.
2197  *
2198  * This routine iterates an initial hash table pointed by @HashResultPointer
2199  * with the values from the working hash table pointeed by @HashWorkingPointer.
2200  * The results are putting back to the initial hash table, returned through
2201  * the @HashResultPointer as the result hash table.
2202  **/
2203 static void
2204 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2205 {
2206         int t;
2207         uint32_t TEMP;
2208         uint32_t A, B, C, D, E;
2209         t = 16;
2210         do {
2211                 HashWorkingPointer[t] =
2212                     S(1,
2213                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2214                                                                      8] ^
2215                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2216         } while (++t <= 79);
2217         t = 0;
2218         A = HashResultPointer[0];
2219         B = HashResultPointer[1];
2220         C = HashResultPointer[2];
2221         D = HashResultPointer[3];
2222         E = HashResultPointer[4];
2223
2224         do {
2225                 if (t < 20) {
2226                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2227                 } else if (t < 40) {
2228                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2229                 } else if (t < 60) {
2230                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2231                 } else {
2232                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2233                 }
2234                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2235                 E = D;
2236                 D = C;
2237                 C = S(30, B);
2238                 B = A;
2239                 A = TEMP;
2240         } while (++t <= 79);
2241
2242         HashResultPointer[0] += A;
2243         HashResultPointer[1] += B;
2244         HashResultPointer[2] += C;
2245         HashResultPointer[3] += D;
2246         HashResultPointer[4] += E;
2247
2248 }
2249
2250 /**
2251  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2252  * @RandomChallenge: pointer to the entry of host challenge random number array.
2253  * @HashWorking: pointer to the entry of the working hash array.
2254  *
2255  * This routine calculates the working hash array referred by @HashWorking
2256  * from the challenge random numbers associated with the host, referred by
2257  * @RandomChallenge. The result is put into the entry of the working hash
2258  * array and returned by reference through @HashWorking.
2259  **/
2260 static void
2261 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2262 {
2263         *HashWorking = (*RandomChallenge ^ *HashWorking);
2264 }
2265
2266 /**
2267  * lpfc_hba_init - Perform special handling for LC HBA initialization
2268  * @phba: pointer to lpfc hba data structure.
2269  * @hbainit: pointer to an array of unsigned 32-bit integers.
2270  *
2271  * This routine performs the special handling for LC HBA initialization.
2272  **/
2273 void
2274 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2275 {
2276         int t;
2277         uint32_t *HashWorking;
2278         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2279
2280         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2281         if (!HashWorking)
2282                 return;
2283
2284         HashWorking[0] = HashWorking[78] = *pwwnn++;
2285         HashWorking[1] = HashWorking[79] = *pwwnn;
2286
2287         for (t = 0; t < 7; t++)
2288                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2289
2290         lpfc_sha_init(hbainit);
2291         lpfc_sha_iterate(hbainit, HashWorking);
2292         kfree(HashWorking);
2293 }
2294
2295 /**
2296  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2297  * @vport: pointer to a virtual N_Port data structure.
2298  *
2299  * This routine performs the necessary cleanups before deleting the @vport.
2300  * It invokes the discovery state machine to perform necessary state
2301  * transitions and to release the ndlps associated with the @vport. Note,
2302  * the physical port is treated as @vport 0.
2303  **/
2304 void
2305 lpfc_cleanup(struct lpfc_vport *vport)
2306 {
2307         struct lpfc_hba   *phba = vport->phba;
2308         struct lpfc_nodelist *ndlp, *next_ndlp;
2309         int i = 0;
2310
2311         if (phba->link_state > LPFC_LINK_DOWN)
2312                 lpfc_port_link_failure(vport);
2313
2314         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2315                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2316                         ndlp = lpfc_enable_node(vport, ndlp,
2317                                                 NLP_STE_UNUSED_NODE);
2318                         if (!ndlp)
2319                                 continue;
2320                         spin_lock_irq(&phba->ndlp_lock);
2321                         NLP_SET_FREE_REQ(ndlp);
2322                         spin_unlock_irq(&phba->ndlp_lock);
2323                         /* Trigger the release of the ndlp memory */
2324                         lpfc_nlp_put(ndlp);
2325                         continue;
2326                 }
2327                 spin_lock_irq(&phba->ndlp_lock);
2328                 if (NLP_CHK_FREE_REQ(ndlp)) {
2329                         /* The ndlp should not be in memory free mode already */
2330                         spin_unlock_irq(&phba->ndlp_lock);
2331                         continue;
2332                 } else
2333                         /* Indicate request for freeing ndlp memory */
2334                         NLP_SET_FREE_REQ(ndlp);
2335                 spin_unlock_irq(&phba->ndlp_lock);
2336
2337                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2338                     ndlp->nlp_DID == Fabric_DID) {
2339                         /* Just free up ndlp with Fabric_DID for vports */
2340                         lpfc_nlp_put(ndlp);
2341                         continue;
2342                 }
2343
2344                 /* take care of nodes in unused state before the state
2345                  * machine taking action.
2346                  */
2347                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2348                         lpfc_nlp_put(ndlp);
2349                         continue;
2350                 }
2351
2352                 if (ndlp->nlp_type & NLP_FABRIC)
2353                         lpfc_disc_state_machine(vport, ndlp, NULL,
2354                                         NLP_EVT_DEVICE_RECOVERY);
2355
2356                 lpfc_disc_state_machine(vport, ndlp, NULL,
2357                                              NLP_EVT_DEVICE_RM);
2358         }
2359
2360         /* At this point, ALL ndlp's should be gone
2361          * because of the previous NLP_EVT_DEVICE_RM.
2362          * Lets wait for this to happen, if needed.
2363          */
2364         while (!list_empty(&vport->fc_nodes)) {
2365                 if (i++ > 3000) {
2366                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2367                                 "0233 Nodelist not empty\n");
2368                         list_for_each_entry_safe(ndlp, next_ndlp,
2369                                                 &vport->fc_nodes, nlp_listp) {
2370                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2371                                                 LOG_NODE,
2372                                                 "0282 did:x%x ndlp:x%p "
2373                                                 "usgmap:x%x refcnt:%d\n",
2374                                                 ndlp->nlp_DID, (void *)ndlp,
2375                                                 ndlp->nlp_usg_map,
2376                                                 atomic_read(
2377                                                         &ndlp->kref.refcount));
2378                         }
2379                         break;
2380                 }
2381
2382                 /* Wait for any activity on ndlps to settle */
2383                 msleep(10);
2384         }
2385         lpfc_cleanup_vports_rrqs(vport, NULL);
2386 }
2387
2388 /**
2389  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2390  * @vport: pointer to a virtual N_Port data structure.
2391  *
2392  * This routine stops all the timers associated with a @vport. This function
2393  * is invoked before disabling or deleting a @vport. Note that the physical
2394  * port is treated as @vport 0.
2395  **/
2396 void
2397 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2398 {
2399         del_timer_sync(&vport->els_tmofunc);
2400         del_timer_sync(&vport->fc_fdmitmo);
2401         del_timer_sync(&vport->delayed_disc_tmo);
2402         lpfc_can_disctmo(vport);
2403         return;
2404 }
2405
2406 /**
2407  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2408  * @phba: pointer to lpfc hba data structure.
2409  *
2410  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2411  * caller of this routine should already hold the host lock.
2412  **/
2413 void
2414 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2415 {
2416         /* Clear pending FCF rediscovery wait flag */
2417         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2418
2419         /* Now, try to stop the timer */
2420         del_timer(&phba->fcf.redisc_wait);
2421 }
2422
2423 /**
2424  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2425  * @phba: pointer to lpfc hba data structure.
2426  *
2427  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2428  * checks whether the FCF rediscovery wait timer is pending with the host
2429  * lock held before proceeding with disabling the timer and clearing the
2430  * wait timer pendig flag.
2431  **/
2432 void
2433 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2434 {
2435         spin_lock_irq(&phba->hbalock);
2436         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2437                 /* FCF rediscovery timer already fired or stopped */
2438                 spin_unlock_irq(&phba->hbalock);
2439                 return;
2440         }
2441         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2442         /* Clear failover in progress flags */
2443         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2444         spin_unlock_irq(&phba->hbalock);
2445 }
2446
2447 /**
2448  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2449  * @phba: pointer to lpfc hba data structure.
2450  *
2451  * This routine stops all the timers associated with a HBA. This function is
2452  * invoked before either putting a HBA offline or unloading the driver.
2453  **/
2454 void
2455 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2456 {
2457         lpfc_stop_vport_timers(phba->pport);
2458         del_timer_sync(&phba->sli.mbox_tmo);
2459         del_timer_sync(&phba->fabric_block_timer);
2460         del_timer_sync(&phba->eratt_poll);
2461         del_timer_sync(&phba->hb_tmofunc);
2462         if (phba->sli_rev == LPFC_SLI_REV4) {
2463                 del_timer_sync(&phba->rrq_tmr);
2464                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2465         }
2466         phba->hb_outstanding = 0;
2467
2468         switch (phba->pci_dev_grp) {
2469         case LPFC_PCI_DEV_LP:
2470                 /* Stop any LightPulse device specific driver timers */
2471                 del_timer_sync(&phba->fcp_poll_timer);
2472                 break;
2473         case LPFC_PCI_DEV_OC:
2474                 /* Stop any OneConnect device sepcific driver timers */
2475                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2476                 break;
2477         default:
2478                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2479                                 "0297 Invalid device group (x%x)\n",
2480                                 phba->pci_dev_grp);
2481                 break;
2482         }
2483         return;
2484 }
2485
2486 /**
2487  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2488  * @phba: pointer to lpfc hba data structure.
2489  *
2490  * This routine marks a HBA's management interface as blocked. Once the HBA's
2491  * management interface is marked as blocked, all the user space access to
2492  * the HBA, whether they are from sysfs interface or libdfc interface will
2493  * all be blocked. The HBA is set to block the management interface when the
2494  * driver prepares the HBA interface for online or offline.
2495  **/
2496 static void
2497 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2498 {
2499         unsigned long iflag;
2500         uint8_t actcmd = MBX_HEARTBEAT;
2501         unsigned long timeout;
2502
2503         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2504         spin_lock_irqsave(&phba->hbalock, iflag);
2505         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2506         if (phba->sli.mbox_active) {
2507                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2508                 /* Determine how long we might wait for the active mailbox
2509                  * command to be gracefully completed by firmware.
2510                  */
2511                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2512                                 phba->sli.mbox_active) * 1000) + jiffies;
2513         }
2514         spin_unlock_irqrestore(&phba->hbalock, iflag);
2515
2516         /* Wait for the outstnading mailbox command to complete */
2517         while (phba->sli.mbox_active) {
2518                 /* Check active mailbox complete status every 2ms */
2519                 msleep(2);
2520                 if (time_after(jiffies, timeout)) {
2521                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2522                                 "2813 Mgmt IO is Blocked %x "
2523                                 "- mbox cmd %x still active\n",
2524                                 phba->sli.sli_flag, actcmd);
2525                         break;
2526                 }
2527         }
2528 }
2529
2530 /**
2531  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2532  * @phba: pointer to lpfc hba data structure.
2533  *
2534  * Allocate RPIs for all active remote nodes. This is needed whenever
2535  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2536  * is to fixup the temporary rpi assignments.
2537  **/
2538 void
2539 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2540 {
2541         struct lpfc_nodelist  *ndlp, *next_ndlp;
2542         struct lpfc_vport **vports;
2543         int i;
2544
2545         if (phba->sli_rev != LPFC_SLI_REV4)
2546                 return;
2547
2548         vports = lpfc_create_vport_work_array(phba);
2549         if (vports != NULL) {
2550                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2551                         if (vports[i]->load_flag & FC_UNLOADING)
2552                                 continue;
2553
2554                         list_for_each_entry_safe(ndlp, next_ndlp,
2555                                                  &vports[i]->fc_nodes,
2556                                                  nlp_listp) {
2557                                 if (NLP_CHK_NODE_ACT(ndlp))
2558                                         ndlp->nlp_rpi =
2559                                                 lpfc_sli4_alloc_rpi(phba);
2560                         }
2561                 }
2562         }
2563         lpfc_destroy_vport_work_array(phba, vports);
2564 }
2565
2566 /**
2567  * lpfc_online - Initialize and bring a HBA online
2568  * @phba: pointer to lpfc hba data structure.
2569  *
2570  * This routine initializes the HBA and brings a HBA online. During this
2571  * process, the management interface is blocked to prevent user space access
2572  * to the HBA interfering with the driver initialization.
2573  *
2574  * Return codes
2575  *   0 - successful
2576  *   1 - failed
2577  **/
2578 int
2579 lpfc_online(struct lpfc_hba *phba)
2580 {
2581         struct lpfc_vport *vport;
2582         struct lpfc_vport **vports;
2583         int i;
2584
2585         if (!phba)
2586                 return 0;
2587         vport = phba->pport;
2588
2589         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2590                 return 0;
2591
2592         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2593                         "0458 Bring Adapter online\n");
2594
2595         lpfc_block_mgmt_io(phba);
2596
2597         if (!lpfc_sli_queue_setup(phba)) {
2598                 lpfc_unblock_mgmt_io(phba);
2599                 return 1;
2600         }
2601
2602         if (phba->sli_rev == LPFC_SLI_REV4) {
2603                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2604                         lpfc_unblock_mgmt_io(phba);
2605                         return 1;
2606                 }
2607         } else {
2608                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2609                         lpfc_unblock_mgmt_io(phba);
2610                         return 1;
2611                 }
2612         }
2613
2614         vports = lpfc_create_vport_work_array(phba);
2615         if (vports != NULL)
2616                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2617                         struct Scsi_Host *shost;
2618                         shost = lpfc_shost_from_vport(vports[i]);
2619                         spin_lock_irq(shost->host_lock);
2620                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2621                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2622                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2623                         if (phba->sli_rev == LPFC_SLI_REV4)
2624                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2625                         spin_unlock_irq(shost->host_lock);
2626                 }
2627                 lpfc_destroy_vport_work_array(phba, vports);
2628
2629         lpfc_unblock_mgmt_io(phba);
2630         return 0;
2631 }
2632
2633 /**
2634  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2635  * @phba: pointer to lpfc hba data structure.
2636  *
2637  * This routine marks a HBA's management interface as not blocked. Once the
2638  * HBA's management interface is marked as not blocked, all the user space
2639  * access to the HBA, whether they are from sysfs interface or libdfc
2640  * interface will be allowed. The HBA is set to block the management interface
2641  * when the driver prepares the HBA interface for online or offline and then
2642  * set to unblock the management interface afterwards.
2643  **/
2644 void
2645 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2646 {
2647         unsigned long iflag;
2648
2649         spin_lock_irqsave(&phba->hbalock, iflag);
2650         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2651         spin_unlock_irqrestore(&phba->hbalock, iflag);
2652 }
2653
2654 /**
2655  * lpfc_offline_prep - Prepare a HBA to be brought offline
2656  * @phba: pointer to lpfc hba data structure.
2657  *
2658  * This routine is invoked to prepare a HBA to be brought offline. It performs
2659  * unregistration login to all the nodes on all vports and flushes the mailbox
2660  * queue to make it ready to be brought offline.
2661  **/
2662 void
2663 lpfc_offline_prep(struct lpfc_hba * phba)
2664 {
2665         struct lpfc_vport *vport = phba->pport;
2666         struct lpfc_nodelist  *ndlp, *next_ndlp;
2667         struct lpfc_vport **vports;
2668         struct Scsi_Host *shost;
2669         int i;
2670
2671         if (vport->fc_flag & FC_OFFLINE_MODE)
2672                 return;
2673
2674         lpfc_block_mgmt_io(phba);
2675
2676         lpfc_linkdown(phba);
2677
2678         /* Issue an unreg_login to all nodes on all vports */
2679         vports = lpfc_create_vport_work_array(phba);
2680         if (vports != NULL) {
2681                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2682                         if (vports[i]->load_flag & FC_UNLOADING)
2683                                 continue;
2684                         shost = lpfc_shost_from_vport(vports[i]);
2685                         spin_lock_irq(shost->host_lock);
2686                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2687                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2688                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2689                         spin_unlock_irq(shost->host_lock);
2690
2691                         shost = lpfc_shost_from_vport(vports[i]);
2692                         list_for_each_entry_safe(ndlp, next_ndlp,
2693                                                  &vports[i]->fc_nodes,
2694                                                  nlp_listp) {
2695                                 if (!NLP_CHK_NODE_ACT(ndlp))
2696                                         continue;
2697                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2698                                         continue;
2699                                 if (ndlp->nlp_type & NLP_FABRIC) {
2700                                         lpfc_disc_state_machine(vports[i], ndlp,
2701                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2702                                         lpfc_disc_state_machine(vports[i], ndlp,
2703                                                 NULL, NLP_EVT_DEVICE_RM);
2704                                 }
2705                                 spin_lock_irq(shost->host_lock);
2706                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2707                                 spin_unlock_irq(shost->host_lock);
2708                                 /*
2709                                  * Whenever an SLI4 port goes offline, free the
2710                                  * RPI. Get a new RPI when the adapter port
2711                                  * comes back online.
2712                                  */
2713                                 if (phba->sli_rev == LPFC_SLI_REV4)
2714                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2715                                 lpfc_unreg_rpi(vports[i], ndlp);
2716                         }
2717                 }
2718         }
2719         lpfc_destroy_vport_work_array(phba, vports);
2720
2721         lpfc_sli_mbox_sys_shutdown(phba);
2722 }
2723
2724 /**
2725  * lpfc_offline - Bring a HBA offline
2726  * @phba: pointer to lpfc hba data structure.
2727  *
2728  * This routine actually brings a HBA offline. It stops all the timers
2729  * associated with the HBA, brings down the SLI layer, and eventually
2730  * marks the HBA as in offline state for the upper layer protocol.
2731  **/
2732 void
2733 lpfc_offline(struct lpfc_hba *phba)
2734 {
2735         struct Scsi_Host  *shost;
2736         struct lpfc_vport **vports;
2737         int i;
2738
2739         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2740                 return;
2741
2742         /* stop port and all timers associated with this hba */
2743         lpfc_stop_port(phba);
2744         vports = lpfc_create_vport_work_array(phba);
2745         if (vports != NULL)
2746                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2747                         lpfc_stop_vport_timers(vports[i]);
2748         lpfc_destroy_vport_work_array(phba, vports);
2749         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2750                         "0460 Bring Adapter offline\n");
2751         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2752            now.  */
2753         lpfc_sli_hba_down(phba);
2754         spin_lock_irq(&phba->hbalock);
2755         phba->work_ha = 0;
2756         spin_unlock_irq(&phba->hbalock);
2757         vports = lpfc_create_vport_work_array(phba);
2758         if (vports != NULL)
2759                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2760                         shost = lpfc_shost_from_vport(vports[i]);
2761                         spin_lock_irq(shost->host_lock);
2762                         vports[i]->work_port_events = 0;
2763                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2764                         spin_unlock_irq(shost->host_lock);
2765                 }
2766         lpfc_destroy_vport_work_array(phba, vports);
2767 }
2768
2769 /**
2770  * lpfc_scsi_buf_update - Update the scsi_buffers that are already allocated.
2771  * @phba: pointer to lpfc hba data structure.
2772  *
2773  * This routine goes through all the scsi buffers in the system and updates the
2774  * Physical XRIs assigned to the SCSI buffer because these may change after any
2775  * firmware reset
2776  *
2777  * Return codes
2778  *   0 - successful (for now, it always returns 0)
2779  **/
2780 int
2781 lpfc_scsi_buf_update(struct lpfc_hba *phba)
2782 {
2783         struct lpfc_scsi_buf *sb, *sb_next;
2784
2785         spin_lock_irq(&phba->hbalock);
2786         spin_lock(&phba->scsi_buf_list_lock);
2787         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2788                 sb->cur_iocbq.sli4_xritag =
2789                         phba->sli4_hba.xri_ids[sb->cur_iocbq.sli4_lxritag];
2790                 set_bit(sb->cur_iocbq.sli4_lxritag, phba->sli4_hba.xri_bmask);
2791                 phba->sli4_hba.max_cfg_param.xri_used++;
2792                 phba->sli4_hba.xri_count++;
2793         }
2794         spin_unlock(&phba->scsi_buf_list_lock);
2795         spin_unlock_irq(&phba->hbalock);
2796         return 0;
2797 }
2798
2799 /**
2800  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2801  * @phba: pointer to lpfc hba data structure.
2802  *
2803  * This routine is to free all the SCSI buffers and IOCBs from the driver
2804  * list back to kernel. It is called from lpfc_pci_remove_one to free
2805  * the internal resources before the device is removed from the system.
2806  *
2807  * Return codes
2808  *   0 - successful (for now, it always returns 0)
2809  **/
2810 static int
2811 lpfc_scsi_free(struct lpfc_hba *phba)
2812 {
2813         struct lpfc_scsi_buf *sb, *sb_next;
2814         struct lpfc_iocbq *io, *io_next;
2815
2816         spin_lock_irq(&phba->hbalock);
2817         /* Release all the lpfc_scsi_bufs maintained by this host. */
2818         spin_lock(&phba->scsi_buf_list_lock);
2819         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2820                 list_del(&sb->list);
2821                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2822                               sb->dma_handle);
2823                 kfree(sb);
2824                 phba->total_scsi_bufs--;
2825         }
2826         spin_unlock(&phba->scsi_buf_list_lock);
2827
2828         /* Release all the lpfc_iocbq entries maintained by this host. */
2829         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2830                 list_del(&io->list);
2831                 kfree(io);
2832                 phba->total_iocbq_bufs--;
2833         }
2834
2835         spin_unlock_irq(&phba->hbalock);
2836         return 0;
2837 }
2838
2839 /**
2840  * lpfc_create_port - Create an FC port
2841  * @phba: pointer to lpfc hba data structure.
2842  * @instance: a unique integer ID to this FC port.
2843  * @dev: pointer to the device data structure.
2844  *
2845  * This routine creates a FC port for the upper layer protocol. The FC port
2846  * can be created on top of either a physical port or a virtual port provided
2847  * by the HBA. This routine also allocates a SCSI host data structure (shost)
2848  * and associates the FC port created before adding the shost into the SCSI
2849  * layer.
2850  *
2851  * Return codes
2852  *   @vport - pointer to the virtual N_Port data structure.
2853  *   NULL - port create failed.
2854  **/
2855 struct lpfc_vport *
2856 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2857 {
2858         struct lpfc_vport *vport;
2859         struct Scsi_Host  *shost;
2860         int error = 0;
2861
2862         if (dev != &phba->pcidev->dev)
2863                 shost = scsi_host_alloc(&lpfc_vport_template,
2864                                         sizeof(struct lpfc_vport));
2865         else
2866                 shost = scsi_host_alloc(&lpfc_template,
2867                                         sizeof(struct lpfc_vport));
2868         if (!shost)
2869                 goto out;
2870
2871         vport = (struct lpfc_vport *) shost->hostdata;
2872         vport->phba = phba;
2873         vport->load_flag |= FC_LOADING;
2874         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2875         vport->fc_rscn_flush = 0;
2876
2877         lpfc_get_vport_cfgparam(vport);
2878         shost->unique_id = instance;
2879         shost->max_id = LPFC_MAX_TARGET;
2880         shost->max_lun = vport->cfg_max_luns;
2881         shost->this_id = -1;
2882         shost->max_cmd_len = 16;
2883         if (phba->sli_rev == LPFC_SLI_REV4) {
2884                 shost->dma_boundary =
2885                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
2886                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2887         }
2888
2889         /*
2890          * Set initial can_queue value since 0 is no longer supported and
2891          * scsi_add_host will fail. This will be adjusted later based on the
2892          * max xri value determined in hba setup.
2893          */
2894         shost->can_queue = phba->cfg_hba_queue_depth - 10;
2895         if (dev != &phba->pcidev->dev) {
2896                 shost->transportt = lpfc_vport_transport_template;
2897                 vport->port_type = LPFC_NPIV_PORT;
2898         } else {
2899                 shost->transportt = lpfc_transport_template;
2900                 vport->port_type = LPFC_PHYSICAL_PORT;
2901         }
2902
2903         /* Initialize all internally managed lists. */
2904         INIT_LIST_HEAD(&vport->fc_nodes);
2905         INIT_LIST_HEAD(&vport->rcv_buffer_list);
2906         spin_lock_init(&vport->work_port_lock);
2907
2908         init_timer(&vport->fc_disctmo);
2909         vport->fc_disctmo.function = lpfc_disc_timeout;
2910         vport->fc_disctmo.data = (unsigned long)vport;
2911
2912         init_timer(&vport->fc_fdmitmo);
2913         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2914         vport->fc_fdmitmo.data = (unsigned long)vport;
2915
2916         init_timer(&vport->els_tmofunc);
2917         vport->els_tmofunc.function = lpfc_els_timeout;
2918         vport->els_tmofunc.data = (unsigned long)vport;
2919
2920         init_timer(&vport->delayed_disc_tmo);
2921         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
2922         vport->delayed_disc_tmo.data = (unsigned long)vport;
2923
2924         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2925         if (error)
2926                 goto out_put_shost;
2927
2928         spin_lock_irq(&phba->hbalock);
2929         list_add_tail(&vport->listentry, &phba->port_list);
2930         spin_unlock_irq(&phba->hbalock);
2931         return vport;
2932
2933 out_put_shost:
2934         scsi_host_put(shost);
2935 out:
2936         return NULL;
2937 }
2938
2939 /**
2940  * destroy_port -  destroy an FC port
2941  * @vport: pointer to an lpfc virtual N_Port data structure.
2942  *
2943  * This routine destroys a FC port from the upper layer protocol. All the
2944  * resources associated with the port are released.
2945  **/
2946 void
2947 destroy_port(struct lpfc_vport *vport)
2948 {
2949         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2950         struct lpfc_hba  *phba = vport->phba;
2951
2952         lpfc_debugfs_terminate(vport);
2953         fc_remove_host(shost);
2954         scsi_remove_host(shost);
2955
2956         spin_lock_irq(&phba->hbalock);
2957         list_del_init(&vport->listentry);
2958         spin_unlock_irq(&phba->hbalock);
2959
2960         lpfc_cleanup(vport);
2961         return;
2962 }
2963
2964 /**
2965  * lpfc_get_instance - Get a unique integer ID
2966  *
2967  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2968  * uses the kernel idr facility to perform the task.
2969  *
2970  * Return codes:
2971  *   instance - a unique integer ID allocated as the new instance.
2972  *   -1 - lpfc get instance failed.
2973  **/
2974 int
2975 lpfc_get_instance(void)
2976 {
2977         int instance = 0;
2978
2979         /* Assign an unused number */
2980         if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2981                 return -1;
2982         if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2983                 return -1;
2984         return instance;
2985 }
2986
2987 /**
2988  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2989  * @shost: pointer to SCSI host data structure.
2990  * @time: elapsed time of the scan in jiffies.
2991  *
2992  * This routine is called by the SCSI layer with a SCSI host to determine
2993  * whether the scan host is finished.
2994  *
2995  * Note: there is no scan_start function as adapter initialization will have
2996  * asynchronously kicked off the link initialization.
2997  *
2998  * Return codes
2999  *   0 - SCSI host scan is not over yet.
3000  *   1 - SCSI host scan is over.
3001  **/
3002 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3003 {
3004         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3005         struct lpfc_hba   *phba = vport->phba;
3006         int stat = 0;
3007
3008         spin_lock_irq(shost->host_lock);
3009
3010         if (vport->load_flag & FC_UNLOADING) {
3011                 stat = 1;
3012                 goto finished;
3013         }
3014         if (time >= 30 * HZ) {
3015                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3016                                 "0461 Scanning longer than 30 "
3017                                 "seconds.  Continuing initialization\n");
3018                 stat = 1;
3019                 goto finished;
3020         }
3021         if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
3022                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3023                                 "0465 Link down longer than 15 "
3024                                 "seconds.  Continuing initialization\n");
3025                 stat = 1;
3026                 goto finished;
3027         }
3028
3029         if (vport->port_state != LPFC_VPORT_READY)
3030                 goto finished;
3031         if (vport->num_disc_nodes || vport->fc_prli_sent)
3032                 goto finished;
3033         if (vport->fc_map_cnt == 0 && time < 2 * HZ)
3034                 goto finished;
3035         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3036                 goto finished;
3037
3038         stat = 1;
3039
3040 finished:
3041         spin_unlock_irq(shost->host_lock);
3042         return stat;
3043 }
3044
3045 /**
3046  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3047  * @shost: pointer to SCSI host data structure.
3048  *
3049  * This routine initializes a given SCSI host attributes on a FC port. The
3050  * SCSI host can be either on top of a physical port or a virtual port.
3051  **/
3052 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3053 {
3054         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3055         struct lpfc_hba   *phba = vport->phba;
3056         /*
3057          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3058          */
3059
3060         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3061         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3062         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3063
3064         memset(fc_host_supported_fc4s(shost), 0,
3065                sizeof(fc_host_supported_fc4s(shost)));
3066         fc_host_supported_fc4s(shost)[2] = 1;
3067         fc_host_supported_fc4s(shost)[7] = 1;
3068
3069         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3070                                  sizeof fc_host_symbolic_name(shost));
3071
3072         fc_host_supported_speeds(shost) = 0;
3073         if (phba->lmt & LMT_16Gb)
3074                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3075         if (phba->lmt & LMT_10Gb)
3076                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3077         if (phba->lmt & LMT_8Gb)
3078                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3079         if (phba->lmt & LMT_4Gb)
3080                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3081         if (phba->lmt & LMT_2Gb)
3082                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3083         if (phba->lmt & LMT_1Gb)
3084                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3085
3086         fc_host_maxframe_size(shost) =
3087                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3088                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3089
3090         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3091
3092         /* This value is also unchanging */
3093         memset(fc_host_active_fc4s(shost), 0,
3094                sizeof(fc_host_active_fc4s(shost)));
3095         fc_host_active_fc4s(shost)[2] = 1;
3096         fc_host_active_fc4s(shost)[7] = 1;
3097
3098         fc_host_max_npiv_vports(shost) = phba->max_vpi;
3099         spin_lock_irq(shost->host_lock);
3100         vport->load_flag &= ~FC_LOADING;
3101         spin_unlock_irq(shost->host_lock);
3102 }
3103
3104 /**
3105  * lpfc_stop_port_s3 - Stop SLI3 device port
3106  * @phba: pointer to lpfc hba data structure.
3107  *
3108  * This routine is invoked to stop an SLI3 device port, it stops the device
3109  * from generating interrupts and stops the device driver's timers for the
3110  * device.
3111  **/
3112 static void
3113 lpfc_stop_port_s3(struct lpfc_hba *phba)
3114 {
3115         /* Clear all interrupt enable conditions */
3116         writel(0, phba->HCregaddr);
3117         readl(phba->HCregaddr); /* flush */
3118         /* Clear all pending interrupts */
3119         writel(0xffffffff, phba->HAregaddr);
3120         readl(phba->HAregaddr); /* flush */
3121
3122         /* Reset some HBA SLI setup states */
3123         lpfc_stop_hba_timers(phba);
3124         phba->pport->work_port_events = 0;
3125 }
3126
3127 /**
3128  * lpfc_stop_port_s4 - Stop SLI4 device port
3129  * @phba: pointer to lpfc hba data structure.
3130  *
3131  * This routine is invoked to stop an SLI4 device port, it stops the device
3132  * from generating interrupts and stops the device driver's timers for the
3133  * device.
3134  **/
3135 static void
3136 lpfc_stop_port_s4(struct lpfc_hba *phba)
3137 {
3138         /* Reset some HBA SLI4 setup states */
3139         lpfc_stop_hba_timers(phba);
3140         phba->pport->work_port_events = 0;
3141         phba->sli4_hba.intr_enable = 0;
3142 }
3143
3144 /**
3145  * lpfc_stop_port - Wrapper function for stopping hba port
3146  * @phba: Pointer to HBA context object.
3147  *
3148  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3149  * the API jump table function pointer from the lpfc_hba struct.
3150  **/
3151 void
3152 lpfc_stop_port(struct lpfc_hba *phba)
3153 {
3154         phba->lpfc_stop_port(phba);
3155 }
3156
3157 /**
3158  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3159  * @phba: Pointer to hba for which this call is being executed.
3160  *
3161  * This routine starts the timer waiting for the FCF rediscovery to complete.
3162  **/
3163 void
3164 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3165 {
3166         unsigned long fcf_redisc_wait_tmo =
3167                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3168         /* Start fcf rediscovery wait period timer */
3169         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3170         spin_lock_irq(&phba->hbalock);
3171         /* Allow action to new fcf asynchronous event */
3172         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3173         /* Mark the FCF rediscovery pending state */
3174         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3175         spin_unlock_irq(&phba->hbalock);
3176 }
3177
3178 /**
3179  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3180  * @ptr: Map to lpfc_hba data structure pointer.
3181  *
3182  * This routine is invoked when waiting for FCF table rediscover has been
3183  * timed out. If new FCF record(s) has (have) been discovered during the
3184  * wait period, a new FCF event shall be added to the FCOE async event
3185  * list, and then worker thread shall be waked up for processing from the
3186  * worker thread context.
3187  **/
3188 void
3189 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3190 {
3191         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3192
3193         /* Don't send FCF rediscovery event if timer cancelled */
3194         spin_lock_irq(&phba->hbalock);
3195         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3196                 spin_unlock_irq(&phba->hbalock);
3197                 return;
3198         }
3199         /* Clear FCF rediscovery timer pending flag */
3200         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3201         /* FCF rediscovery event to worker thread */
3202         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3203         spin_unlock_irq(&phba->hbalock);
3204         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3205                         "2776 FCF rediscover quiescent timer expired\n");
3206         /* wake up worker thread */
3207         lpfc_worker_wake_up(phba);
3208 }
3209
3210 /**
3211  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3212  * @phba: pointer to lpfc hba data structure.
3213  * @acqe_link: pointer to the async link completion queue entry.
3214  *
3215  * This routine is to parse the SLI4 link-attention link fault code and
3216  * translate it into the base driver's read link attention mailbox command
3217  * status.
3218  *
3219  * Return: Link-attention status in terms of base driver's coding.
3220  **/
3221 static uint16_t
3222 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3223                            struct lpfc_acqe_link *acqe_link)
3224 {
3225         uint16_t latt_fault;
3226
3227         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3228         case LPFC_ASYNC_LINK_FAULT_NONE:
3229         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3230         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3231                 latt_fault = 0;
3232                 break;
3233         default:
3234                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3235                                 "0398 Invalid link fault code: x%x\n",
3236                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3237                 latt_fault = MBXERR_ERROR;
3238                 break;
3239         }
3240         return latt_fault;
3241 }
3242
3243 /**
3244  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3245  * @phba: pointer to lpfc hba data structure.
3246  * @acqe_link: pointer to the async link completion queue entry.
3247  *
3248  * This routine is to parse the SLI4 link attention type and translate it
3249  * into the base driver's link attention type coding.
3250  *
3251  * Return: Link attention type in terms of base driver's coding.
3252  **/
3253 static uint8_t
3254 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3255                           struct lpfc_acqe_link *acqe_link)
3256 {
3257         uint8_t att_type;
3258
3259         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3260         case LPFC_ASYNC_LINK_STATUS_DOWN:
3261         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3262                 att_type = LPFC_ATT_LINK_DOWN;
3263                 break;
3264         case LPFC_ASYNC_LINK_STATUS_UP:
3265                 /* Ignore physical link up events - wait for logical link up */
3266                 att_type = LPFC_ATT_RESERVED;
3267                 break;
3268         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3269                 att_type = LPFC_ATT_LINK_UP;
3270                 break;
3271         default:
3272                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3273                                 "0399 Invalid link attention type: x%x\n",
3274                                 bf_get(lpfc_acqe_link_status, acqe_link));
3275                 att_type = LPFC_ATT_RESERVED;
3276                 break;
3277         }
3278         return att_type;
3279 }
3280
3281 /**
3282  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3283  * @phba: pointer to lpfc hba data structure.
3284  * @acqe_link: pointer to the async link completion queue entry.
3285  *
3286  * This routine is to parse the SLI4 link-attention link speed and translate
3287  * it into the base driver's link-attention link speed coding.
3288  *
3289  * Return: Link-attention link speed in terms of base driver's coding.
3290  **/
3291 static uint8_t
3292 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3293                                 struct lpfc_acqe_link *acqe_link)
3294 {
3295         uint8_t link_speed;
3296
3297         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3298         case LPFC_ASYNC_LINK_SPEED_ZERO:
3299         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3300         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3301                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3302                 break;
3303         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3304                 link_speed = LPFC_LINK_SPEED_1GHZ;
3305                 break;
3306         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3307                 link_speed = LPFC_LINK_SPEED_10GHZ;
3308                 break;
3309         default:
3310                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3311                                 "0483 Invalid link-attention link speed: x%x\n",
3312                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3313                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3314                 break;
3315         }
3316         return link_speed;
3317 }
3318
3319 /**
3320  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3321  * @phba: pointer to lpfc hba data structure.
3322  * @acqe_link: pointer to the async link completion queue entry.
3323  *
3324  * This routine is to handle the SLI4 asynchronous FCoE link event.
3325  **/
3326 static void
3327 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3328                          struct lpfc_acqe_link *acqe_link)
3329 {
3330         struct lpfc_dmabuf *mp;
3331         LPFC_MBOXQ_t *pmb;
3332         MAILBOX_t *mb;
3333         struct lpfc_mbx_read_top *la;
3334         uint8_t att_type;
3335         int rc;
3336
3337         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3338         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3339                 return;
3340         phba->fcoe_eventtag = acqe_link->event_tag;
3341         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3342         if (!pmb) {
3343                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3344                                 "0395 The mboxq allocation failed\n");
3345                 return;
3346         }
3347         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3348         if (!mp) {
3349                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3350                                 "0396 The lpfc_dmabuf allocation failed\n");
3351                 goto out_free_pmb;
3352         }
3353         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3354         if (!mp->virt) {
3355                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3356                                 "0397 The mbuf allocation failed\n");
3357                 goto out_free_dmabuf;
3358         }
3359
3360         /* Cleanup any outstanding ELS commands */
3361         lpfc_els_flush_all_cmd(phba);
3362
3363         /* Block ELS IOCBs until we have done process link event */
3364         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3365
3366         /* Update link event statistics */
3367         phba->sli.slistat.link_event++;
3368
3369         /* Create lpfc_handle_latt mailbox command from link ACQE */
3370         lpfc_read_topology(phba, pmb, mp);
3371         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3372         pmb->vport = phba->pport;
3373
3374         /* Keep the link status for extra SLI4 state machine reference */
3375         phba->sli4_hba.link_state.speed =
3376                                 bf_get(lpfc_acqe_link_speed, acqe_link);
3377         phba->sli4_hba.link_state.duplex =
3378                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3379         phba->sli4_hba.link_state.status =
3380                                 bf_get(lpfc_acqe_link_status, acqe_link);
3381         phba->sli4_hba.link_state.type =
3382                                 bf_get(lpfc_acqe_link_type, acqe_link);
3383         phba->sli4_hba.link_state.number =
3384                                 bf_get(lpfc_acqe_link_number, acqe_link);
3385         phba->sli4_hba.link_state.fault =
3386                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3387         phba->sli4_hba.link_state.logical_speed =
3388                         bf_get(lpfc_acqe_logical_link_speed, acqe_link);
3389         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3390                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3391                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3392                         "Logical speed:%dMbps Fault:%d\n",
3393                         phba->sli4_hba.link_state.speed,
3394                         phba->sli4_hba.link_state.topology,
3395                         phba->sli4_hba.link_state.status,
3396                         phba->sli4_hba.link_state.type,
3397                         phba->sli4_hba.link_state.number,
3398                         phba->sli4_hba.link_state.logical_speed * 10,
3399                         phba->sli4_hba.link_state.fault);
3400         /*
3401          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3402          * topology info. Note: Optional for non FC-AL ports.
3403          */
3404         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3405                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3406                 if (rc == MBX_NOT_FINISHED)
3407                         goto out_free_dmabuf;
3408                 return;
3409         }
3410         /*
3411          * For FCoE Mode: fill in all the topology information we need and call
3412          * the READ_TOPOLOGY completion routine to continue without actually
3413          * sending the READ_TOPOLOGY mailbox command to the port.
3414          */
3415         /* Parse and translate status field */
3416         mb = &pmb->u.mb;
3417         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3418
3419         /* Parse and translate link attention fields */
3420         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3421         la->eventTag = acqe_link->event_tag;
3422         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3423         bf_set(lpfc_mbx_read_top_link_spd, la,
3424                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3425
3426         /* Fake the the following irrelvant fields */
3427         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3428         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3429         bf_set(lpfc_mbx_read_top_il, la, 0);
3430         bf_set(lpfc_mbx_read_top_pb, la, 0);
3431         bf_set(lpfc_mbx_read_top_fa, la, 0);
3432         bf_set(lpfc_mbx_read_top_mm, la, 0);
3433
3434         /* Invoke the lpfc_handle_latt mailbox command callback function */
3435         lpfc_mbx_cmpl_read_topology(phba, pmb);
3436
3437         return;
3438
3439 out_free_dmabuf:
3440         kfree(mp);
3441 out_free_pmb:
3442         mempool_free(pmb, phba->mbox_mem_pool);
3443 }
3444
3445 /**
3446  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3447  * @phba: pointer to lpfc hba data structure.
3448  * @acqe_fc: pointer to the async fc completion queue entry.
3449  *
3450  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3451  * that the event was received and then issue a read_topology mailbox command so
3452  * that the rest of the driver will treat it the same as SLI3.
3453  **/
3454 static void
3455 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3456 {
3457         struct lpfc_dmabuf *mp;
3458         LPFC_MBOXQ_t *pmb;
3459         int rc;
3460
3461         if (bf_get(lpfc_trailer_type, acqe_fc) !=
3462             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3463                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3464                                 "2895 Non FC link Event detected.(%d)\n",
3465                                 bf_get(lpfc_trailer_type, acqe_fc));
3466                 return;
3467         }
3468         /* Keep the link status for extra SLI4 state machine reference */
3469         phba->sli4_hba.link_state.speed =
3470                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
3471         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3472         phba->sli4_hba.link_state.topology =
3473                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3474         phba->sli4_hba.link_state.status =
3475                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3476         phba->sli4_hba.link_state.type =
3477                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3478         phba->sli4_hba.link_state.number =
3479                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3480         phba->sli4_hba.link_state.fault =
3481                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
3482         phba->sli4_hba.link_state.logical_speed =
3483                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
3484         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3485                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3486                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3487                         "%dMbps Fault:%d\n",
3488                         phba->sli4_hba.link_state.speed,
3489                         phba->sli4_hba.link_state.topology,
3490                         phba->sli4_hba.link_state.status,
3491                         phba->sli4_hba.link_state.type,
3492                         phba->sli4_hba.link_state.number,
3493                         phba->sli4_hba.link_state.logical_speed * 10,
3494                         phba->sli4_hba.link_state.fault);
3495         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3496         if (!pmb) {
3497                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3498                                 "2897 The mboxq allocation failed\n");
3499                 return;
3500         }
3501         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3502         if (!mp) {
3503                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3504                                 "2898 The lpfc_dmabuf allocation failed\n");
3505                 goto out_free_pmb;
3506         }
3507         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3508         if (!mp->virt) {
3509                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3510                                 "2899 The mbuf allocation failed\n");
3511                 goto out_free_dmabuf;
3512         }
3513
3514         /* Cleanup any outstanding ELS commands */
3515         lpfc_els_flush_all_cmd(phba);
3516
3517         /* Block ELS IOCBs until we have done process link event */
3518         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3519
3520         /* Update link event statistics */
3521         phba->sli.slistat.link_event++;
3522
3523         /* Create lpfc_handle_latt mailbox command from link ACQE */
3524         lpfc_read_topology(phba, pmb, mp);
3525         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3526         pmb->vport = phba->pport;
3527
3528         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3529         if (rc == MBX_NOT_FINISHED)
3530                 goto out_free_dmabuf;
3531         return;
3532
3533 out_free_dmabuf:
3534         kfree(mp);
3535 out_free_pmb:
3536         mempool_free(pmb, phba->mbox_mem_pool);
3537 }
3538
3539 /**
3540  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3541  * @phba: pointer to lpfc hba data structure.
3542  * @acqe_fc: pointer to the async SLI completion queue entry.
3543  *
3544  * This routine is to handle the SLI4 asynchronous SLI events.
3545  **/
3546 static void
3547 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3548 {
3549         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3550                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3551                         "x%08x SLI Event Type:%d",
3552                         acqe_sli->event_data1, acqe_sli->event_data2,
3553                         bf_get(lpfc_trailer_type, acqe_sli));
3554         return;
3555 }
3556
3557 /**
3558  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3559  * @vport: pointer to vport data structure.
3560  *
3561  * This routine is to perform Clear Virtual Link (CVL) on a vport in
3562  * response to a CVL event.
3563  *
3564  * Return the pointer to the ndlp with the vport if successful, otherwise
3565  * return NULL.
3566  **/
3567 static struct lpfc_nodelist *
3568 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3569 {
3570         struct lpfc_nodelist *ndlp;
3571         struct Scsi_Host *shost;
3572         struct lpfc_hba *phba;
3573
3574         if (!vport)
3575                 return NULL;
3576         phba = vport->phba;
3577         if (!phba)
3578                 return NULL;
3579         ndlp = lpfc_findnode_did(vport, Fabric_DID);
3580         if (!ndlp) {
3581                 /* Cannot find existing Fabric ndlp, so allocate a new one */
3582                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3583                 if (!ndlp)
3584                         return 0;
3585                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3586                 /* Set the node type */
3587                 ndlp->nlp_type |= NLP_FABRIC;
3588                 /* Put ndlp onto node list */
3589                 lpfc_enqueue_node(vport, ndlp);
3590         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3591                 /* re-setup ndlp without removing from node list */
3592                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3593                 if (!ndlp)
3594                         return 0;
3595         }
3596         if ((phba->pport->port_state < LPFC_FLOGI) &&
3597                 (phba->pport->port_state != LPFC_VPORT_FAILED))
3598                 return NULL;
3599         /* If virtual link is not yet instantiated ignore CVL */
3600         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3601                 && (vport->port_state != LPFC_VPORT_FAILED))
3602                 return NULL;
3603         shost = lpfc_shost_from_vport(vport);
3604         if (!shost)
3605                 return NULL;
3606         lpfc_linkdown_port(vport);
3607         lpfc_cleanup_pending_mbox(vport);
3608         spin_lock_irq(shost->host_lock);
3609         vport->fc_flag |= FC_VPORT_CVL_RCVD;
3610         spin_unlock_irq(shost->host_lock);
3611
3612         return ndlp;
3613 }
3614
3615 /**
3616  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3617  * @vport: pointer to lpfc hba data structure.
3618  *
3619  * This routine is to perform Clear Virtual Link (CVL) on all vports in
3620  * response to a FCF dead event.
3621  **/
3622 static void
3623 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3624 {
3625         struct lpfc_vport **vports;
3626         int i;
3627
3628         vports = lpfc_create_vport_work_array(phba);
3629         if (vports)
3630                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3631                         lpfc_sli4_perform_vport_cvl(vports[i]);
3632         lpfc_destroy_vport_work_array(phba, vports);
3633 }
3634
3635 /**
3636  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
3637  * @phba: pointer to lpfc hba data structure.
3638  * @acqe_link: pointer to the async fcoe completion queue entry.
3639  *
3640  * This routine is to handle the SLI4 asynchronous fcoe event.
3641  **/
3642 static void
3643 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
3644                         struct lpfc_acqe_fip *acqe_fip)
3645 {
3646         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
3647         int rc;
3648         struct lpfc_vport *vport;
3649         struct lpfc_nodelist *ndlp;
3650         struct Scsi_Host  *shost;
3651         int active_vlink_present;
3652         struct lpfc_vport **vports;
3653         int i;
3654
3655         phba->fc_eventTag = acqe_fip->event_tag;
3656         phba->fcoe_eventtag = acqe_fip->event_tag;
3657         switch (event_type) {
3658         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
3659         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
3660                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
3661                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3662                                         LOG_DISCOVERY,
3663                                         "2546 New FCF event, evt_tag:x%x, "
3664                                         "index:x%x\n",
3665                                         acqe_fip->event_tag,
3666                                         acqe_fip->index);
3667                 else
3668                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3669                                         LOG_DISCOVERY,
3670                                         "2788 FCF param modified event, "
3671                                         "evt_tag:x%x, index:x%x\n",
3672                                         acqe_fip->event_tag,
3673                                         acqe_fip->index);
3674                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3675                         /*
3676                          * During period of FCF discovery, read the FCF
3677                          * table record indexed by the event to update
3678                          * FCF roundrobin failover eligible FCF bmask.
3679                          */
3680                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3681                                         LOG_DISCOVERY,
3682                                         "2779 Read FCF (x%x) for updating "
3683                                         "roundrobin FCF failover bmask\n",
3684                                         acqe_fip->index);
3685                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
3686                 }
3687
3688                 /* If the FCF discovery is in progress, do nothing. */
3689                 spin_lock_irq(&phba->hbalock);
3690                 if (phba->hba_flag & FCF_TS_INPROG) {
3691                         spin_unlock_irq(&phba->hbalock);
3692                         break;
3693                 }
3694                 /* If fast FCF failover rescan event is pending, do nothing */
3695                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3696                         spin_unlock_irq(&phba->hbalock);
3697                         break;
3698                 }
3699
3700                 /* If the FCF has been in discovered state, do nothing. */
3701                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3702                         spin_unlock_irq(&phba->hbalock);
3703                         break;
3704                 }
3705                 spin_unlock_irq(&phba->hbalock);
3706
3707                 /* Otherwise, scan the entire FCF table and re-discover SAN */
3708                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3709                                 "2770 Start FCF table scan per async FCF "
3710                                 "event, evt_tag:x%x, index:x%x\n",
3711                                 acqe_fip->event_tag, acqe_fip->index);
3712                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3713                                                      LPFC_FCOE_FCF_GET_FIRST);
3714                 if (rc)
3715                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3716                                         "2547 Issue FCF scan read FCF mailbox "
3717                                         "command failed (x%x)\n", rc);
3718                 break;
3719
3720         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
3721                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3722                         "2548 FCF Table full count 0x%x tag 0x%x\n",
3723                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
3724                         acqe_fip->event_tag);
3725                 break;
3726
3727         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
3728                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
3729                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3730                         "2549 FCF (x%x) disconnected from network, "
3731                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
3732                 /*
3733                  * If we are in the middle of FCF failover process, clear
3734                  * the corresponding FCF bit in the roundrobin bitmap.
3735                  */
3736                 spin_lock_irq(&phba->hbalock);
3737                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3738                         spin_unlock_irq(&phba->hbalock);
3739                         /* Update FLOGI FCF failover eligible FCF bmask */
3740                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
3741                         break;
3742                 }
3743                 spin_unlock_irq(&phba->hbalock);
3744
3745                 /* If the event is not for currently used fcf do nothing */
3746                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
3747                         break;
3748
3749                 /*
3750                  * Otherwise, request the port to rediscover the entire FCF
3751                  * table for a fast recovery from case that the current FCF
3752                  * is no longer valid as we are not in the middle of FCF
3753                  * failover process already.
3754                  */
3755                 spin_lock_irq(&phba->hbalock);
3756                 /* Mark the fast failover process in progress */
3757                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
3758                 spin_unlock_irq(&phba->hbalock);
3759
3760                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3761                                 "2771 Start FCF fast failover process due to "
3762                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3763                                 "\n", acqe_fip->event_tag, acqe_fip->index);
3764                 rc = lpfc_sli4_redisc_fcf_table(phba);
3765                 if (rc) {
3766                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3767                                         LOG_DISCOVERY,
3768                                         "2772 Issue FCF rediscover mabilbox "
3769                                         "command failed, fail through to FCF "
3770                                         "dead event\n");
3771                         spin_lock_irq(&phba->hbalock);
3772                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
3773                         spin_unlock_irq(&phba->hbalock);
3774                         /*
3775                          * Last resort will fail over by treating this
3776                          * as a link down to FCF registration.
3777                          */
3778                         lpfc_sli4_fcf_dead_failthrough(phba);
3779                 } else {
3780                         /* Reset FCF roundrobin bmask for new discovery */
3781                         lpfc_sli4_clear_fcf_rr_bmask(phba);
3782                         /*
3783                          * Handling fast FCF failover to a DEAD FCF event is
3784                          * considered equalivant to receiving CVL to all vports.
3785                          */
3786                         lpfc_sli4_perform_all_vport_cvl(phba);
3787                 }
3788                 break;
3789         case LPFC_FIP_EVENT_TYPE_CVL:
3790                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
3791                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3792                         "2718 Clear Virtual Link Received for VPI 0x%x"
3793                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
3794
3795                 vport = lpfc_find_vport_by_vpid(phba,
3796                                                 acqe_fip->index);
3797                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
3798                 if (!ndlp)
3799                         break;
3800                 active_vlink_present = 0;
3801
3802                 vports = lpfc_create_vport_work_array(phba);
3803                 if (vports) {
3804                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3805                                         i++) {
3806                                 if ((!(vports[i]->fc_flag &
3807                                         FC_VPORT_CVL_RCVD)) &&
3808                                         (vports[i]->port_state > LPFC_FDISC)) {
3809                                         active_vlink_present = 1;
3810                                         break;
3811                                 }
3812                         }
3813                         lpfc_destroy_vport_work_array(phba, vports);
3814                 }
3815
3816                 if (active_vlink_present) {
3817                         /*
3818                          * If there are other active VLinks present,
3819                          * re-instantiate the Vlink using FDISC.
3820                          */
3821                         mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3822                         shost = lpfc_shost_from_vport(vport);
3823                         spin_lock_irq(shost->host_lock);
3824                         ndlp->nlp_flag |= NLP_DELAY_TMO;
3825                         spin_unlock_irq(shost->host_lock);
3826                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3827                         vport->port_state = LPFC_FDISC;
3828                 } else {
3829                         /*
3830                          * Otherwise, we request port to rediscover
3831                          * the entire FCF table for a fast recovery
3832                          * from possible case that the current FCF
3833                          * is no longer valid if we are not already
3834                          * in the FCF failover process.
3835                          */
3836                         spin_lock_irq(&phba->hbalock);
3837                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3838                                 spin_unlock_irq(&phba->hbalock);
3839                                 break;
3840                         }
3841                         /* Mark the fast failover process in progress */
3842                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
3843                         spin_unlock_irq(&phba->hbalock);
3844                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3845                                         LOG_DISCOVERY,
3846                                         "2773 Start FCF failover per CVL, "
3847                                         "evt_tag:x%x\n", acqe_fip->event_tag);
3848                         rc = lpfc_sli4_redisc_fcf_table(phba);
3849                         if (rc) {
3850                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3851                                                 LOG_DISCOVERY,
3852                                                 "2774 Issue FCF rediscover "
3853                                                 "mabilbox command failed, "
3854                                                 "through to CVL event\n");
3855                                 spin_lock_irq(&phba->hbalock);
3856                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
3857                                 spin_unlock_irq(&phba->hbalock);
3858                                 /*
3859                                  * Last resort will be re-try on the
3860                                  * the current registered FCF entry.
3861                                  */
3862                                 lpfc_retry_pport_discovery(phba);
3863                         } else
3864                                 /*
3865                                  * Reset FCF roundrobin bmask for new
3866                                  * discovery.
3867                                  */
3868                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
3869                 }
3870                 break;
3871         default:
3872                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3873                         "0288 Unknown FCoE event type 0x%x event tag "
3874                         "0x%x\n", event_type, acqe_fip->event_tag);
3875                 break;
3876         }
3877 }
3878
3879 /**
3880  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3881  * @phba: pointer to lpfc hba data structure.
3882  * @acqe_link: pointer to the async dcbx completion queue entry.
3883  *
3884  * This routine is to handle the SLI4 asynchronous dcbx event.
3885  **/
3886 static void
3887 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3888                          struct lpfc_acqe_dcbx *acqe_dcbx)
3889 {
3890         phba->fc_eventTag = acqe_dcbx->event_tag;
3891         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3892                         "0290 The SLI4 DCBX asynchronous event is not "
3893                         "handled yet\n");
3894 }
3895
3896 /**
3897  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3898  * @phba: pointer to lpfc hba data structure.
3899  * @acqe_link: pointer to the async grp5 completion queue entry.
3900  *
3901  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3902  * is an asynchronous notified of a logical link speed change.  The Port
3903  * reports the logical link speed in units of 10Mbps.
3904  **/
3905 static void
3906 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3907                          struct lpfc_acqe_grp5 *acqe_grp5)
3908 {
3909         uint16_t prev_ll_spd;
3910
3911         phba->fc_eventTag = acqe_grp5->event_tag;
3912         phba->fcoe_eventtag = acqe_grp5->event_tag;
3913         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3914         phba->sli4_hba.link_state.logical_speed =
3915                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3916         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3917                         "2789 GRP5 Async Event: Updating logical link speed "
3918                         "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3919                         (phba->sli4_hba.link_state.logical_speed*10));
3920 }
3921
3922 /**
3923  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3924  * @phba: pointer to lpfc hba data structure.
3925  *
3926  * This routine is invoked by the worker thread to process all the pending
3927  * SLI4 asynchronous events.
3928  **/
3929 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3930 {
3931         struct lpfc_cq_event *cq_event;
3932
3933         /* First, declare the async event has been handled */
3934         spin_lock_irq(&phba->hbalock);
3935         phba->hba_flag &= ~ASYNC_EVENT;
3936         spin_unlock_irq(&phba->hbalock);
3937         /* Now, handle all the async events */
3938         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3939                 /* Get the first event from the head of the event queue */
3940                 spin_lock_irq(&phba->hbalock);
3941                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3942                                  cq_event, struct lpfc_cq_event, list);
3943                 spin_unlock_irq(&phba->hbalock);
3944                 /* Process the asynchronous event */
3945                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3946                 case LPFC_TRAILER_CODE_LINK:
3947                         lpfc_sli4_async_link_evt(phba,
3948                                                  &cq_event->cqe.acqe_link);
3949                         break;
3950                 case LPFC_TRAILER_CODE_FCOE:
3951                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
3952                         break;
3953                 case LPFC_TRAILER_CODE_DCBX:
3954                         lpfc_sli4_async_dcbx_evt(phba,
3955                                                  &cq_event->cqe.acqe_dcbx);
3956                         break;
3957                 case LPFC_TRAILER_CODE_GRP5:
3958                         lpfc_sli4_async_grp5_evt(phba,
3959                                                  &cq_event->cqe.acqe_grp5);
3960                         break;
3961                 case LPFC_TRAILER_CODE_FC:
3962                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
3963                         break;
3964                 case LPFC_TRAILER_CODE_SLI:
3965                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
3966                         break;
3967                 default:
3968                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3969                                         "1804 Invalid asynchrous event code: "
3970                                         "x%x\n", bf_get(lpfc_trailer_code,
3971                                         &cq_event->cqe.mcqe_cmpl));
3972                         break;
3973                 }
3974                 /* Free the completion event processed to the free pool */
3975                 lpfc_sli4_cq_event_release(phba, cq_event);
3976         }
3977 }
3978
3979 /**
3980  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3981  * @phba: pointer to lpfc hba data structure.
3982  *
3983  * This routine is invoked by the worker thread to process FCF table
3984  * rediscovery pending completion event.
3985  **/
3986 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3987 {
3988         int rc;
3989
3990         spin_lock_irq(&phba->hbalock);
3991         /* Clear FCF rediscovery timeout event */
3992         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3993         /* Clear driver fast failover FCF record flag */
3994         phba->fcf.failover_rec.flag = 0;
3995         /* Set state for FCF fast failover */
3996         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3997         spin_unlock_irq(&phba->hbalock);
3998
3999         /* Scan FCF table from the first entry to re-discover SAN */
4000         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4001                         "2777 Start post-quiescent FCF table scan\n");
4002         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4003         if (rc)
4004                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4005                                 "2747 Issue FCF scan read FCF mailbox "
4006                                 "command failed 0x%x\n", rc);
4007 }
4008
4009 /**
4010  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4011  * @phba: pointer to lpfc hba data structure.
4012  * @dev_grp: The HBA PCI-Device group number.
4013  *
4014  * This routine is invoked to set up the per HBA PCI-Device group function
4015  * API jump table entries.
4016  *
4017  * Return: 0 if success, otherwise -ENODEV
4018  **/
4019 int
4020 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4021 {
4022         int rc;
4023
4024         /* Set up lpfc PCI-device group */
4025         phba->pci_dev_grp = dev_grp;
4026
4027         /* The LPFC_PCI_DEV_OC uses SLI4 */
4028         if (dev_grp == LPFC_PCI_DEV_OC)
4029                 phba->sli_rev = LPFC_SLI_REV4;
4030
4031         /* Set up device INIT API function jump table */
4032         rc = lpfc_init_api_table_setup(phba, dev_grp);
4033         if (rc)
4034                 return -ENODEV;
4035         /* Set up SCSI API function jump table */
4036         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4037         if (rc)
4038                 return -ENODEV;
4039         /* Set up SLI API function jump table */
4040         rc = lpfc_sli_api_table_setup(phba, dev_grp);
4041         if (rc)
4042                 return -ENODEV;
4043         /* Set up MBOX API function jump table */
4044         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4045         if (rc)
4046                 return -ENODEV;
4047
4048         return 0;
4049 }
4050
4051 /**
4052  * lpfc_log_intr_mode - Log the active interrupt mode
4053  * @phba: pointer to lpfc hba data structure.
4054  * @intr_mode: active interrupt mode adopted.
4055  *
4056  * This routine it invoked to log the currently used active interrupt mode
4057  * to the device.
4058  **/
4059 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4060 {
4061         switch (intr_mode) {
4062         case 0:
4063                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4064                                 "0470 Enable INTx interrupt mode.\n");
4065                 break;
4066         case 1:
4067                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4068                                 "0481 Enabled MSI interrupt mode.\n");
4069                 break;
4070         case 2:
4071                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4072                                 "0480 Enabled MSI-X interrupt mode.\n");
4073                 break;
4074         default:
4075                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4076                                 "0482 Illegal interrupt mode.\n");
4077                 break;
4078         }
4079         return;
4080 }
4081
4082 /**
4083  * lpfc_enable_pci_dev - Enable a generic PCI device.
4084  * @phba: pointer to lpfc hba data structure.
4085  *
4086  * This routine is invoked to enable the PCI device that is common to all
4087  * PCI devices.
4088  *
4089  * Return codes
4090  *      0 - successful
4091  *      other values - error
4092  **/
4093 static int
4094 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4095 {
4096         struct pci_dev *pdev;
4097         int bars = 0;
4098
4099         /* Obtain PCI device reference */
4100         if (!phba->pcidev)
4101                 goto out_error;
4102         else
4103                 pdev = phba->pcidev;
4104         /* Select PCI BARs */
4105         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4106         /* Enable PCI device */
4107         if (pci_enable_device_mem(pdev))
4108                 goto out_error;
4109         /* Request PCI resource for the device */
4110         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4111                 goto out_disable_device;
4112         /* Set up device as PCI master and save state for EEH */
4113         pci_set_master(pdev);
4114         pci_try_set_mwi(pdev);
4115         pci_save_state(pdev);
4116
4117         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4118         if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
4119                 pdev->needs_freset = 1;
4120
4121         return 0;
4122
4123 out_disable_device:
4124         pci_disable_device(pdev);
4125 out_error:
4126         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4127                         "1401 Failed to enable pci device, bars:x%x\n", bars);
4128         return -ENODEV;
4129 }
4130
4131 /**
4132  * lpfc_disable_pci_dev - Disable a generic PCI device.
4133  * @phba: pointer to lpfc hba data structure.
4134  *
4135  * This routine is invoked to disable the PCI device that is common to all
4136  * PCI devices.
4137  **/
4138 static void
4139 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4140 {
4141         struct pci_dev *pdev;
4142         int bars;
4143
4144         /* Obtain PCI device reference */
4145         if (!phba->pcidev)
4146                 return;
4147         else
4148                 pdev = phba->pcidev;
4149         /* Select PCI BARs */
4150         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4151         /* Release PCI resource and disable PCI device */
4152         pci_release_selected_regions(pdev, bars);
4153         pci_disable_device(pdev);
4154         /* Null out PCI private reference to driver */
4155         pci_set_drvdata(pdev, NULL);
4156
4157         return;
4158 }
4159
4160 /**
4161  * lpfc_reset_hba - Reset a hba
4162  * @phba: pointer to lpfc hba data structure.
4163  *
4164  * This routine is invoked to reset a hba device. It brings the HBA
4165  * offline, performs a board restart, and then brings the board back
4166  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4167  * on outstanding mailbox commands.
4168  **/
4169 void
4170 lpfc_reset_hba(struct lpfc_hba *phba)
4171 {
4172         /* If resets are disabled then set error state and return. */
4173         if (!phba->cfg_enable_hba_reset) {
4174                 phba->link_state = LPFC_HBA_ERROR;
4175                 return;
4176         }
4177         lpfc_offline_prep(phba);
4178         lpfc_offline(phba);
4179         lpfc_sli_brdrestart(phba);
4180         lpfc_online(phba);
4181         lpfc_unblock_mgmt_io(phba);
4182 }
4183
4184 /**
4185  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4186  * @phba: pointer to lpfc hba data structure.
4187  *
4188  * This function enables the PCI SR-IOV virtual functions to a physical
4189  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4190  * enable the number of virtual functions to the physical function. As
4191  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4192  * API call does not considered as an error condition for most of the device.
4193  **/
4194 uint16_t
4195 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4196 {
4197         struct pci_dev *pdev = phba->pcidev;
4198         uint16_t nr_virtfn;
4199         int pos;
4200
4201         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4202         if (pos == 0)
4203                 return 0;
4204
4205         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4206         return nr_virtfn;
4207 }
4208
4209 /**
4210  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4211  * @phba: pointer to lpfc hba data structure.
4212  * @nr_vfn: number of virtual functions to be enabled.
4213  *
4214  * This function enables the PCI SR-IOV virtual functions to a physical
4215  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4216  * enable the number of virtual functions to the physical function. As
4217  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4218  * API call does not considered as an error condition for most of the device.
4219  **/
4220 int
4221 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4222 {
4223         struct pci_dev *pdev = phba->pcidev;
4224         uint16_t max_nr_vfn;
4225         int rc;
4226
4227         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4228         if (nr_vfn > max_nr_vfn) {
4229                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4230                                 "3057 Requested vfs (%d) greater than "
4231                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4232                 return -EINVAL;
4233         }
4234
4235         rc = pci_enable_sriov(pdev, nr_vfn);
4236         if (rc) {
4237                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4238                                 "2806 Failed to enable sriov on this device "
4239                                 "with vfn number nr_vf:%d, rc:%d\n",
4240                                 nr_vfn, rc);
4241         } else
4242                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4243                                 "2807 Successful enable sriov on this device "
4244                                 "with vfn number nr_vf:%d\n", nr_vfn);
4245         return rc;
4246 }
4247
4248 /**
4249  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4250  * @phba: pointer to lpfc hba data structure.
4251  *
4252  * This routine is invoked to set up the driver internal resources specific to
4253  * support the SLI-3 HBA device it attached to.
4254  *
4255  * Return codes
4256  *      0 - successful
4257  *      other values - error
4258  **/
4259 static int
4260 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4261 {
4262         struct lpfc_sli *psli;
4263         int rc;
4264
4265         /*
4266          * Initialize timers used by driver
4267          */
4268
4269         /* Heartbeat timer */
4270         init_timer(&phba->hb_tmofunc);
4271         phba->hb_tmofunc.function = lpfc_hb_timeout;
4272         phba->hb_tmofunc.data = (unsigned long)phba;
4273
4274         psli = &phba->sli;
4275         /* MBOX heartbeat timer */
4276         init_timer(&psli->mbox_tmo);
4277         psli->mbox_tmo.function = lpfc_mbox_timeout;
4278         psli->mbox_tmo.data = (unsigned long) phba;
4279         /* FCP polling mode timer */
4280         init_timer(&phba->fcp_poll_timer);
4281         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4282         phba->fcp_poll_timer.data = (unsigned long) phba;
4283         /* Fabric block timer */
4284         init_timer(&phba->fabric_block_timer);
4285         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4286         phba->fabric_block_timer.data = (unsigned long) phba;
4287         /* EA polling mode timer */
4288         init_timer(&phba->eratt_poll);
4289         phba->eratt_poll.function = lpfc_poll_eratt;
4290         phba->eratt_poll.data = (unsigned long) phba;
4291
4292         /* Host attention work mask setup */
4293         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4294         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4295
4296         /* Get all the module params for configuring this host */
4297         lpfc_get_cfgparam(phba);
4298         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4299                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4300                 /* check for menlo minimum sg count */
4301                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4302                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4303         }
4304
4305         /*
4306          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4307          * used to create the sg_dma_buf_pool must be dynamically calculated.
4308          * 2 segments are added since the IOCB needs a command and response bde.
4309          */
4310         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4311                 sizeof(struct fcp_rsp) +
4312                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4313
4314         if (phba->cfg_enable_bg) {
4315                 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4316                 phba->cfg_sg_dma_buf_size +=
4317                         phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
4318         }
4319
4320         /* Also reinitialize the host templates with new values. */
4321         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4322         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4323
4324         phba->max_vpi = LPFC_MAX_VPI;
4325         /* This will be set to correct value after config_port mbox */
4326         phba->max_vports = 0;
4327
4328         /*
4329          * Initialize the SLI Layer to run with lpfc HBAs.
4330          */
4331         lpfc_sli_setup(phba);
4332         lpfc_sli_queue_setup(phba);
4333
4334         /* Allocate device driver memory */
4335         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4336                 return -ENOMEM;
4337
4338         /*
4339          * Enable sr-iov virtual functions if supported and configured
4340          * through the module parameter.
4341          */
4342         if (phba->cfg_sriov_nr_virtfn > 0) {
4343                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4344                                                  phba->cfg_sriov_nr_virtfn);
4345                 if (rc) {
4346                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4347                                         "2808 Requested number of SR-IOV "
4348                                         "virtual functions (%d) is not "
4349                                         "supported\n",
4350                                         phba->cfg_sriov_nr_virtfn);
4351                         phba->cfg_sriov_nr_virtfn = 0;
4352                 }
4353         }
4354
4355         return 0;
4356 }
4357
4358 /**
4359  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4360  * @phba: pointer to lpfc hba data structure.
4361  *
4362  * This routine is invoked to unset the driver internal resources set up
4363  * specific for supporting the SLI-3 HBA device it attached to.
4364  **/
4365 static void
4366 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4367 {
4368         /* Free device driver memory allocated */
4369         lpfc_mem_free_all(phba);
4370
4371         return;
4372 }
4373
4374 /**
4375  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4376  * @phba: pointer to lpfc hba data structure.
4377  *
4378  * This routine is invoked to set up the driver internal resources specific to
4379  * support the SLI-4 HBA device it attached to.
4380  *
4381  * Return codes
4382  *      0 - successful
4383  *      other values - error
4384  **/
4385 static int
4386 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4387 {
4388         struct lpfc_sli *psli;
4389         LPFC_MBOXQ_t *mboxq;
4390         int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4391         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4392         struct lpfc_mqe *mqe;
4393         int longs, sli_family;
4394         int sges_per_segment;
4395
4396         /* Before proceed, wait for POST done and device ready */
4397         rc = lpfc_sli4_post_status_check(phba);
4398         if (rc)
4399                 return -ENODEV;
4400
4401         /*
4402          * Initialize timers used by driver
4403          */
4404
4405         /* Heartbeat timer */
4406         init_timer(&phba->hb_tmofunc);
4407         phba->hb_tmofunc.function = lpfc_hb_timeout;
4408         phba->hb_tmofunc.data = (unsigned long)phba;
4409         init_timer(&phba->rrq_tmr);
4410         phba->rrq_tmr.function = lpfc_rrq_timeout;
4411         phba->rrq_tmr.data = (unsigned long)phba;
4412
4413         psli = &phba->sli;
4414         /* MBOX heartbeat timer */
4415         init_timer(&psli->mbox_tmo);
4416         psli->mbox_tmo.function = lpfc_mbox_timeout;
4417         psli->mbox_tmo.data = (unsigned long) phba;
4418         /* Fabric block timer */
4419         init_timer(&phba->fabric_block_timer);
4420         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4421         phba->fabric_block_timer.data = (unsigned long) phba;
4422         /* EA polling mode timer */
4423         init_timer(&phba->eratt_poll);
4424         phba->eratt_poll.function = lpfc_poll_eratt;
4425         phba->eratt_poll.data = (unsigned long) phba;
4426         /* FCF rediscover timer */
4427         init_timer(&phba->fcf.redisc_wait);
4428         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4429         phba->fcf.redisc_wait.data = (unsigned long)phba;
4430
4431         /*
4432          * Control structure for handling external multi-buffer mailbox
4433          * command pass-through.
4434          */
4435         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4436                 sizeof(struct lpfc_mbox_ext_buf_ctx));
4437         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4438
4439         /*
4440          * We need to do a READ_CONFIG mailbox command here before
4441          * calling lpfc_get_cfgparam. For VFs this will report the
4442          * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4443          * All of the resources allocated
4444          * for this Port are tied to these values.
4445          */
4446         /* Get all the module params for configuring this host */
4447         lpfc_get_cfgparam(phba);
4448         phba->max_vpi = LPFC_MAX_VPI;
4449         /* This will be set to correct value after the read_config mbox */
4450         phba->max_vports = 0;
4451
4452         /* Program the default value of vlan_id and fc_map */
4453         phba->valid_vlan = 0;
4454         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4455         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4456         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4457
4458         /* With BlockGuard we can have multiple SGEs per Data Segemnt */
4459         sges_per_segment = 1;
4460         if (phba->cfg_enable_bg)
4461                 sges_per_segment = 2;
4462
4463         /*
4464          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4465          * used to create the sg_dma_buf_pool must be dynamically calculated.
4466          * 2 segments are added since the IOCB needs a command and response bde.
4467          * To insure that the scsi sgl does not cross a 4k page boundary only
4468          * sgl sizes of must be a power of 2.
4469          */
4470         buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4471                     (((phba->cfg_sg_seg_cnt * sges_per_segment) + 2) *
4472                     sizeof(struct sli4_sge)));
4473
4474         sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4475         max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4476         switch (sli_family) {
4477         case LPFC_SLI_INTF_FAMILY_BE2:
4478         case LPFC_SLI_INTF_FAMILY_BE3:
4479                 /* There is a single hint for BE - 2 pages per BPL. */
4480                 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4481                     LPFC_SLI_INTF_SLI_HINT1_1)
4482                         max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4483                 break;
4484         case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4485         case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4486         default:
4487                 break;
4488         }
4489
4490         for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4491              dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4492              dma_buf_size = dma_buf_size << 1)
4493                 ;
4494         if (dma_buf_size == max_buf_size)
4495                 phba->cfg_sg_seg_cnt = (dma_buf_size -
4496                         sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4497                         (2 * sizeof(struct sli4_sge))) /
4498                                 sizeof(struct sli4_sge);
4499         phba->cfg_sg_dma_buf_size = dma_buf_size;
4500
4501         /* Initialize buffer queue management fields */
4502         hbq_count = lpfc_sli_hbq_count();
4503         for (i = 0; i < hbq_count; ++i)
4504                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4505         INIT_LIST_HEAD(&phba->rb_pend_list);
4506         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4507         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4508
4509         /*
4510          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4511          */
4512         /* Initialize the Abort scsi buffer list used by driver */
4513         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4514         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4515         /* This abort list used by worker thread */
4516         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
4517
4518         /*
4519          * Initialize driver internal slow-path work queues
4520          */
4521
4522         /* Driver internel slow-path CQ Event pool */
4523         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4524         /* Response IOCB work queue list */
4525         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4526         /* Asynchronous event CQ Event work queue list */
4527         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4528         /* Fast-path XRI aborted CQ Event work queue list */
4529         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4530         /* Slow-path XRI aborted CQ Event work queue list */
4531         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4532         /* Receive queue CQ Event work queue list */
4533         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4534
4535         /* Initialize extent block lists. */
4536         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
4537         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
4538         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
4539         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
4540
4541         /* Initialize the driver internal SLI layer lists. */
4542         lpfc_sli_setup(phba);
4543         lpfc_sli_queue_setup(phba);
4544
4545         /* Allocate device driver memory */
4546         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4547         if (rc)
4548                 return -ENOMEM;
4549
4550         /* IF Type 2 ports get initialized now. */
4551         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4552             LPFC_SLI_INTF_IF_TYPE_2) {
4553                 rc = lpfc_pci_function_reset(phba);
4554                 if (unlikely(rc))
4555                         return -ENODEV;
4556         }
4557
4558         /* Create the bootstrap mailbox command */
4559         rc = lpfc_create_bootstrap_mbox(phba);
4560         if (unlikely(rc))
4561                 goto out_free_mem;
4562
4563         /* Set up the host's endian order with the device. */
4564         rc = lpfc_setup_endian_order(phba);
4565         if (unlikely(rc))
4566                 goto out_free_bsmbx;
4567
4568         /* Set up the hba's configuration parameters. */
4569         rc = lpfc_sli4_read_config(phba);
4570         if (unlikely(rc))
4571                 goto out_free_bsmbx;
4572
4573         /* IF Type 0 ports get initialized now. */
4574         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4575             LPFC_SLI_INTF_IF_TYPE_0) {
4576                 rc = lpfc_pci_function_reset(phba);
4577                 if (unlikely(rc))
4578                         goto out_free_bsmbx;
4579         }
4580
4581         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4582                                                        GFP_KERNEL);
4583         if (!mboxq) {
4584                 rc = -ENOMEM;
4585                 goto out_free_bsmbx;
4586         }
4587
4588         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
4589         lpfc_supported_pages(mboxq);
4590         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4591         if (!rc) {
4592                 mqe = &mboxq->u.mqe;
4593                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4594                        LPFC_MAX_SUPPORTED_PAGES);
4595                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4596                         switch (pn_page[i]) {
4597                         case LPFC_SLI4_PARAMETERS:
4598                                 phba->sli4_hba.pc_sli4_params.supported = 1;
4599                                 break;
4600                         default:
4601                                 break;
4602                         }
4603                 }
4604                 /* Read the port's SLI4 Parameters capabilities if supported. */
4605                 if (phba->sli4_hba.pc_sli4_params.supported)
4606                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
4607                 if (rc) {
4608                         mempool_free(mboxq, phba->mbox_mem_pool);
4609                         rc = -EIO;
4610                         goto out_free_bsmbx;
4611                 }
4612         }
4613         /*
4614          * Get sli4 parameters that override parameters from Port capabilities.
4615          * If this call fails, it isn't critical unless the SLI4 parameters come
4616          * back in conflict.
4617          */
4618         rc = lpfc_get_sli4_parameters(phba, mboxq);
4619         if (rc) {
4620                 if (phba->sli4_hba.extents_in_use &&
4621                     phba->sli4_hba.rpi_hdrs_in_use) {
4622                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4623                                 "2999 Unsupported SLI4 Parameters "
4624                                 "Extents and RPI headers enabled.\n");
4625                         goto out_free_bsmbx;
4626                 }
4627         }
4628         mempool_free(mboxq, phba->mbox_mem_pool);
4629         /* Verify all the SLI4 queues */
4630         rc = lpfc_sli4_queue_verify(phba);
4631         if (rc)
4632                 goto out_free_bsmbx;
4633
4634         /* Create driver internal CQE event pool */
4635         rc = lpfc_sli4_cq_event_pool_create(phba);
4636         if (rc)
4637                 goto out_free_bsmbx;
4638
4639         /* Initialize and populate the iocb list per host */
4640         rc = lpfc_init_sgl_list(phba);
4641         if (rc) {
4642                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4643                                 "1400 Failed to initialize sgl list.\n");
4644                 goto out_destroy_cq_event_pool;
4645         }
4646         rc = lpfc_init_active_sgl_array(phba);
4647         if (rc) {
4648                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4649                                 "1430 Failed to initialize sgl list.\n");
4650                 goto out_free_sgl_list;
4651         }
4652         rc = lpfc_sli4_init_rpi_hdrs(phba);
4653         if (rc) {
4654                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4655                                 "1432 Failed to initialize rpi headers.\n");
4656                 goto out_free_active_sgl;
4657         }
4658
4659         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
4660         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4661         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4662                                          GFP_KERNEL);
4663         if (!phba->fcf.fcf_rr_bmask) {
4664                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4665                                 "2759 Failed allocate memory for FCF round "
4666                                 "robin failover bmask\n");
4667                 rc = -ENOMEM;
4668                 goto out_remove_rpi_hdrs;
4669         }
4670
4671         /*
4672          * The cfg_fcp_eq_count can be zero whenever there is exactly one
4673          * interrupt vector.  This is not an error
4674          */
4675         if (phba->cfg_fcp_eq_count) {
4676                 phba->sli4_hba.fcp_eq_hdl =
4677                                 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4678                                     phba->cfg_fcp_eq_count), GFP_KERNEL);
4679                 if (!phba->sli4_hba.fcp_eq_hdl) {
4680                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4681                                         "2572 Failed allocate memory for "
4682                                         "fast-path per-EQ handle array\n");
4683                         rc = -ENOMEM;
4684                         goto out_free_fcf_rr_bmask;
4685                 }
4686         }
4687
4688         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4689                                       phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4690         if (!phba->sli4_hba.msix_entries) {
4691                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4692                                 "2573 Failed allocate memory for msi-x "
4693                                 "interrupt vector entries\n");
4694                 rc = -ENOMEM;
4695                 goto out_free_fcp_eq_hdl;
4696         }
4697
4698         /*
4699          * Enable sr-iov virtual functions if supported and configured
4700          * through the module parameter.
4701          */
4702         if (phba->cfg_sriov_nr_virtfn > 0) {
4703                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4704                                                  phba->cfg_sriov_nr_virtfn);
4705                 if (rc) {
4706                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4707                                         "3020 Requested number of SR-IOV "
4708                                         "virtual functions (%d) is not "
4709                                         "supported\n",
4710                                         phba->cfg_sriov_nr_virtfn);
4711                         phba->cfg_sriov_nr_virtfn = 0;
4712                 }
4713         }
4714
4715         return 0;
4716
4717 out_free_fcp_eq_hdl:
4718         kfree(phba->sli4_hba.fcp_eq_hdl);
4719 out_free_fcf_rr_bmask:
4720         kfree(phba->fcf.fcf_rr_bmask);
4721 out_remove_rpi_hdrs:
4722         lpfc_sli4_remove_rpi_hdrs(phba);
4723 out_free_active_sgl:
4724         lpfc_free_active_sgl(phba);
4725 out_free_sgl_list:
4726         lpfc_free_sgl_list(phba);
4727 out_destroy_cq_event_pool:
4728         lpfc_sli4_cq_event_pool_destroy(phba);
4729 out_free_bsmbx:
4730         lpfc_destroy_bootstrap_mbox(phba);
4731 out_free_mem:
4732         lpfc_mem_free(phba);
4733         return rc;
4734 }
4735
4736 /**
4737  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4738  * @phba: pointer to lpfc hba data structure.
4739  *
4740  * This routine is invoked to unset the driver internal resources set up
4741  * specific for supporting the SLI-4 HBA device it attached to.
4742  **/
4743 static void
4744 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4745 {
4746         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4747
4748         /* Free memory allocated for msi-x interrupt vector entries */
4749         kfree(phba->sli4_hba.msix_entries);
4750
4751         /* Free memory allocated for fast-path work queue handles */
4752         kfree(phba->sli4_hba.fcp_eq_hdl);
4753
4754         /* Free the allocated rpi headers. */
4755         lpfc_sli4_remove_rpi_hdrs(phba);
4756         lpfc_sli4_remove_rpis(phba);
4757
4758         /* Free eligible FCF index bmask */
4759         kfree(phba->fcf.fcf_rr_bmask);
4760
4761         /* Free the ELS sgl list */
4762         lpfc_free_active_sgl(phba);
4763         lpfc_free_sgl_list(phba);
4764
4765         /* Free the SCSI sgl management array */
4766         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4767
4768         /* Free the completion queue EQ event pool */
4769         lpfc_sli4_cq_event_release_all(phba);
4770         lpfc_sli4_cq_event_pool_destroy(phba);
4771
4772         /* Release resource identifiers. */
4773         lpfc_sli4_dealloc_resource_identifiers(phba);
4774
4775         /* Free the bsmbx region. */
4776         lpfc_destroy_bootstrap_mbox(phba);
4777
4778         /* Free the SLI Layer memory with SLI4 HBAs */
4779         lpfc_mem_free_all(phba);
4780
4781         /* Free the current connect table */
4782         list_for_each_entry_safe(conn_entry, next_conn_entry,
4783                 &phba->fcf_conn_rec_list, list) {
4784                 list_del_init(&conn_entry->list);
4785                 kfree(conn_entry);
4786         }
4787
4788         return;
4789 }
4790
4791 /**
4792  * lpfc_init_api_table_setup - Set up init api function jump table
4793  * @phba: The hba struct for which this call is being executed.
4794  * @dev_grp: The HBA PCI-Device group number.
4795  *
4796  * This routine sets up the device INIT interface API function jump table
4797  * in @phba struct.
4798  *
4799  * Returns: 0 - success, -ENODEV - failure.
4800  **/
4801 int
4802 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4803 {
4804         phba->lpfc_hba_init_link = lpfc_hba_init_link;
4805         phba->lpfc_hba_down_link = lpfc_hba_down_link;
4806         phba->lpfc_selective_reset = lpfc_selective_reset;
4807         switch (dev_grp) {
4808         case LPFC_PCI_DEV_LP:
4809                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4810                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4811                 phba->lpfc_stop_port = lpfc_stop_port_s3;
4812                 break;
4813         case LPFC_PCI_DEV_OC:
4814                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4815                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4816                 phba->lpfc_stop_port = lpfc_stop_port_s4;
4817                 break;
4818         default:
4819                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4820                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
4821                                 dev_grp);
4822                 return -ENODEV;
4823                 break;
4824         }
4825         return 0;
4826 }
4827
4828 /**
4829  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4830  * @phba: pointer to lpfc hba data structure.
4831  *
4832  * This routine is invoked to set up the driver internal resources before the
4833  * device specific resource setup to support the HBA device it attached to.
4834  *
4835  * Return codes
4836  *      0 - successful
4837  *      other values - error
4838  **/
4839 static int
4840 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4841 {
4842         /*
4843          * Driver resources common to all SLI revisions
4844          */
4845         atomic_set(&phba->fast_event_count, 0);
4846         spin_lock_init(&phba->hbalock);
4847
4848         /* Initialize ndlp management spinlock */
4849         spin_lock_init(&phba->ndlp_lock);
4850
4851         INIT_LIST_HEAD(&phba->port_list);
4852         INIT_LIST_HEAD(&phba->work_list);
4853         init_waitqueue_head(&phba->wait_4_mlo_m_q);
4854
4855         /* Initialize the wait queue head for the kernel thread */
4856         init_waitqueue_head(&phba->work_waitq);
4857
4858         /* Initialize the scsi buffer list used by driver for scsi IO */
4859         spin_lock_init(&phba->scsi_buf_list_lock);
4860         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4861
4862         /* Initialize the fabric iocb list */
4863         INIT_LIST_HEAD(&phba->fabric_iocb_list);
4864
4865         /* Initialize list to save ELS buffers */
4866         INIT_LIST_HEAD(&phba->elsbuf);
4867
4868         /* Initialize FCF connection rec list */
4869         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4870
4871         return 0;
4872 }
4873
4874 /**
4875  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4876  * @phba: pointer to lpfc hba data structure.
4877  *
4878  * This routine is invoked to set up the driver internal resources after the
4879  * device specific resource setup to support the HBA device it attached to.
4880  *
4881  * Return codes
4882  *      0 - successful
4883  *      other values - error
4884  **/
4885 static int
4886 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4887 {
4888         int error;
4889
4890         /* Startup the kernel thread for this host adapter. */
4891         phba->worker_thread = kthread_run(lpfc_do_work, phba,
4892                                           "lpfc_worker_%d", phba->brd_no);
4893         if (IS_ERR(phba->worker_thread)) {
4894                 error = PTR_ERR(phba->worker_thread);
4895                 return error;
4896         }
4897
4898         return 0;
4899 }
4900
4901 /**
4902  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4903  * @phba: pointer to lpfc hba data structure.
4904  *
4905  * This routine is invoked to unset the driver internal resources set up after
4906  * the device specific resource setup for supporting the HBA device it
4907  * attached to.
4908  **/
4909 static void
4910 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4911 {
4912         /* Stop kernel worker thread */
4913         kthread_stop(phba->worker_thread);
4914 }
4915
4916 /**
4917  * lpfc_free_iocb_list - Free iocb list.
4918  * @phba: pointer to lpfc hba data structure.
4919  *
4920  * This routine is invoked to free the driver's IOCB list and memory.
4921  **/
4922 static void
4923 lpfc_free_iocb_list(struct lpfc_hba *phba)
4924 {
4925         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4926
4927         spin_lock_irq(&phba->hbalock);
4928         list_for_each_entry_safe(iocbq_entry, iocbq_next,
4929                                  &phba->lpfc_iocb_list, list) {
4930                 list_del(&iocbq_entry->list);
4931                 kfree(iocbq_entry);
4932                 phba->total_iocbq_bufs--;
4933         }
4934         spin_unlock_irq(&phba->hbalock);
4935
4936         return;
4937 }
4938
4939 /**
4940  * lpfc_init_iocb_list - Allocate and initialize iocb list.
4941  * @phba: pointer to lpfc hba data structure.
4942  *
4943  * This routine is invoked to allocate and initizlize the driver's IOCB
4944  * list and set up the IOCB tag array accordingly.
4945  *
4946  * Return codes
4947  *      0 - successful
4948  *      other values - error
4949  **/
4950 static int
4951 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4952 {
4953         struct lpfc_iocbq *iocbq_entry = NULL;
4954         uint16_t iotag;
4955         int i;
4956
4957         /* Initialize and populate the iocb list per host.  */
4958         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4959         for (i = 0; i < iocb_count; i++) {
4960                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
4961                 if (iocbq_entry == NULL) {
4962                         printk(KERN_ERR "%s: only allocated %d iocbs of "
4963                                 "expected %d count. Unloading driver.\n",
4964                                 __func__, i, LPFC_IOCB_LIST_CNT);
4965                         goto out_free_iocbq;
4966                 }
4967
4968                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4969                 if (iotag == 0) {
4970                         kfree(iocbq_entry);
4971                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
4972                                 "Unloading driver.\n", __func__);
4973                         goto out_free_iocbq;
4974                 }
4975                 iocbq_entry->sli4_lxritag = NO_XRI;
4976                 iocbq_entry->sli4_xritag = NO_XRI;
4977
4978                 spin_lock_irq(&phba->hbalock);
4979                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4980                 phba->total_iocbq_bufs++;
4981                 spin_unlock_irq(&phba->hbalock);
4982         }
4983
4984         return 0;
4985
4986 out_free_iocbq:
4987         lpfc_free_iocb_list(phba);
4988
4989         return -ENOMEM;
4990 }
4991
4992 /**
4993  * lpfc_free_sgl_list - Free sgl list.
4994  * @phba: pointer to lpfc hba data structure.
4995  *
4996  * This routine is invoked to free the driver's sgl list and memory.
4997  **/
4998 static void
4999 lpfc_free_sgl_list(struct lpfc_hba *phba)
5000 {
5001         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5002         LIST_HEAD(sglq_list);
5003
5004         spin_lock_irq(&phba->hbalock);
5005         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5006         spin_unlock_irq(&phba->hbalock);
5007
5008         list_for_each_entry_safe(sglq_entry, sglq_next,
5009                                  &sglq_list, list) {
5010                 list_del(&sglq_entry->list);
5011                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5012                 kfree(sglq_entry);
5013                 phba->sli4_hba.total_sglq_bufs--;
5014         }
5015         kfree(phba->sli4_hba.lpfc_els_sgl_array);
5016 }
5017
5018 /**
5019  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5020  * @phba: pointer to lpfc hba data structure.
5021  *
5022  * This routine is invoked to allocate the driver's active sgl memory.
5023  * This array will hold the sglq_entry's for active IOs.
5024  **/
5025 static int
5026 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5027 {
5028         int size;
5029         size = sizeof(struct lpfc_sglq *);
5030         size *= phba->sli4_hba.max_cfg_param.max_xri;
5031
5032         phba->sli4_hba.lpfc_sglq_active_list =
5033                 kzalloc(size, GFP_KERNEL);
5034         if (!phba->sli4_hba.lpfc_sglq_active_list)
5035                 return -ENOMEM;
5036         return 0;
5037 }
5038
5039 /**
5040  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5041  * @phba: pointer to lpfc hba data structure.
5042  *
5043  * This routine is invoked to walk through the array of active sglq entries
5044  * and free all of the resources.
5045  * This is just a place holder for now.
5046  **/
5047 static void
5048 lpfc_free_active_sgl(struct lpfc_hba *phba)
5049 {
5050         kfree(phba->sli4_hba.lpfc_sglq_active_list);
5051 }
5052
5053 /**
5054  * lpfc_init_sgl_list - Allocate and initialize sgl list.
5055  * @phba: pointer to lpfc hba data structure.
5056  *
5057  * This routine is invoked to allocate and initizlize the driver's sgl
5058  * list and set up the sgl xritag tag array accordingly.
5059  *
5060  * Return codes
5061  *      0 - successful
5062  *      other values - error
5063  **/
5064 static int
5065 lpfc_init_sgl_list(struct lpfc_hba *phba)
5066 {
5067         struct lpfc_sglq *sglq_entry = NULL;
5068         int i;
5069         int els_xri_cnt;
5070
5071         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
5072         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5073                                 "2400 ELS XRI count %d.\n",
5074                                 els_xri_cnt);
5075         /* Initialize and populate the sglq list per host/VF. */
5076         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5077         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5078
5079         /* Sanity check on XRI management */
5080         if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
5081                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5082                                 "2562 No room left for SCSI XRI allocation: "
5083                                 "max_xri=%d, els_xri=%d\n",
5084                                 phba->sli4_hba.max_cfg_param.max_xri,
5085                                 els_xri_cnt);
5086                 return -ENOMEM;
5087         }
5088
5089         /* Allocate memory for the ELS XRI management array */
5090         phba->sli4_hba.lpfc_els_sgl_array =
5091                         kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
5092                         GFP_KERNEL);
5093
5094         if (!phba->sli4_hba.lpfc_els_sgl_array) {
5095                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5096                                 "2401 Failed to allocate memory for ELS "
5097                                 "XRI management array of size %d.\n",
5098                                 els_xri_cnt);
5099                 return -ENOMEM;
5100         }
5101
5102         /* Keep the SCSI XRI into the XRI management array */
5103         phba->sli4_hba.scsi_xri_max =
5104                         phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
5105         phba->sli4_hba.scsi_xri_cnt = 0;
5106         phba->sli4_hba.lpfc_scsi_psb_array =
5107                         kzalloc((sizeof(struct lpfc_scsi_buf *) *
5108                         phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
5109
5110         if (!phba->sli4_hba.lpfc_scsi_psb_array) {
5111                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5112                                 "2563 Failed to allocate memory for SCSI "
5113                                 "XRI management array of size %d.\n",
5114                                 phba->sli4_hba.scsi_xri_max);
5115                 kfree(phba->sli4_hba.lpfc_els_sgl_array);
5116                 return -ENOMEM;
5117         }
5118
5119         for (i = 0; i < els_xri_cnt; i++) {
5120                 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
5121                 if (sglq_entry == NULL) {
5122                         printk(KERN_ERR "%s: only allocated %d sgls of "
5123                                 "expected %d count. Unloading driver.\n",
5124                                 __func__, i, els_xri_cnt);
5125                         goto out_free_mem;
5126                 }
5127
5128                 sglq_entry->buff_type = GEN_BUFF_TYPE;
5129                 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
5130                 if (sglq_entry->virt == NULL) {
5131                         kfree(sglq_entry);
5132                         printk(KERN_ERR "%s: failed to allocate mbuf.\n"
5133                                 "Unloading driver.\n", __func__);
5134                         goto out_free_mem;
5135                 }
5136                 sglq_entry->sgl = sglq_entry->virt;
5137                 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
5138
5139                 /* The list order is used by later block SGL registraton */
5140                 spin_lock_irq(&phba->hbalock);
5141                 sglq_entry->state = SGL_FREED;
5142                 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
5143                 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
5144                 phba->sli4_hba.total_sglq_bufs++;
5145                 spin_unlock_irq(&phba->hbalock);
5146         }
5147         return 0;
5148
5149 out_free_mem:
5150         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
5151         lpfc_free_sgl_list(phba);
5152         return -ENOMEM;
5153 }
5154
5155 /**
5156  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5157  * @phba: pointer to lpfc hba data structure.
5158  *
5159  * This routine is invoked to post rpi header templates to the
5160  * port for those SLI4 ports that do not support extents.  This routine
5161  * posts a PAGE_SIZE memory region to the port to hold up to
5162  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
5163  * and should be called only when interrupts are disabled.
5164  *
5165  * Return codes
5166  *      0 - successful
5167  *      -ERROR - otherwise.
5168  **/
5169 int
5170 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5171 {
5172         int rc = 0;
5173         struct lpfc_rpi_hdr *rpi_hdr;
5174
5175         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5176         if (!phba->sli4_hba.rpi_hdrs_in_use)
5177                 return rc;
5178         if (phba->sli4_hba.extents_in_use)
5179                 return -EIO;
5180
5181         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5182         if (!rpi_hdr) {
5183                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5184                                 "0391 Error during rpi post operation\n");
5185                 lpfc_sli4_remove_rpis(phba);
5186                 rc = -ENODEV;
5187         }
5188
5189         return rc;
5190 }
5191
5192 /**
5193  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5194  * @phba: pointer to lpfc hba data structure.
5195  *
5196  * This routine is invoked to allocate a single 4KB memory region to
5197  * support rpis and stores them in the phba.  This single region
5198  * provides support for up to 64 rpis.  The region is used globally
5199  * by the device.
5200  *
5201  * Returns:
5202  *   A valid rpi hdr on success.
5203  *   A NULL pointer on any failure.
5204  **/
5205 struct lpfc_rpi_hdr *
5206 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5207 {
5208         uint16_t rpi_limit, curr_rpi_range;
5209         struct lpfc_dmabuf *dmabuf;
5210         struct lpfc_rpi_hdr *rpi_hdr;
5211         uint32_t rpi_count;
5212
5213         /*
5214          * If the SLI4 port supports extents, posting the rpi header isn't
5215          * required.  Set the expected maximum count and let the actual value
5216          * get set when extents are fully allocated.
5217          */
5218         if (!phba->sli4_hba.rpi_hdrs_in_use)
5219                 return NULL;
5220         if (phba->sli4_hba.extents_in_use)
5221                 return NULL;
5222
5223         /* The limit on the logical index is just the max_rpi count. */
5224         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5225         phba->sli4_hba.max_cfg_param.max_rpi - 1;
5226
5227         spin_lock_irq(&phba->hbalock);
5228         /*
5229          * Establish the starting RPI in this header block.  The starting
5230          * rpi is normalized to a zero base because the physical rpi is
5231          * port based.
5232          */
5233         curr_rpi_range = phba->sli4_hba.next_rpi;
5234         spin_unlock_irq(&phba->hbalock);
5235
5236         /*
5237          * The port has a limited number of rpis. The increment here
5238          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5239          * and to allow the full max_rpi range per port.
5240          */
5241         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5242                 rpi_count = rpi_limit - curr_rpi_range;
5243         else
5244                 rpi_count = LPFC_RPI_HDR_COUNT;
5245
5246         if (!rpi_count)
5247                 return NULL;
5248         /*
5249          * First allocate the protocol header region for the port.  The
5250          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5251          */
5252         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5253         if (!dmabuf)
5254                 return NULL;
5255
5256         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5257                                           LPFC_HDR_TEMPLATE_SIZE,
5258                                           &dmabuf->phys,
5259                                           GFP_KERNEL);
5260         if (!dmabuf->virt) {
5261                 rpi_hdr = NULL;
5262                 goto err_free_dmabuf;
5263         }
5264
5265         memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5266         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5267                 rpi_hdr = NULL;
5268                 goto err_free_coherent;
5269         }
5270
5271         /* Save the rpi header data for cleanup later. */
5272         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5273         if (!rpi_hdr)
5274                 goto err_free_coherent;
5275
5276         rpi_hdr->dmabuf = dmabuf;
5277         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5278         rpi_hdr->page_count = 1;
5279         spin_lock_irq(&phba->hbalock);
5280
5281         /* The rpi_hdr stores the logical index only. */
5282         rpi_hdr->start_rpi = curr_rpi_range;
5283         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5284
5285         /*
5286          * The next_rpi stores the next logical module-64 rpi value used
5287          * to post physical rpis in subsequent rpi postings.
5288          */
5289         phba->sli4_hba.next_rpi += rpi_count;
5290         spin_unlock_irq(&phba->hbalock);
5291         return rpi_hdr;
5292
5293  err_free_coherent:
5294         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5295                           dmabuf->virt, dmabuf->phys);
5296  err_free_dmabuf:
5297         kfree(dmabuf);
5298         return NULL;
5299 }
5300
5301 /**
5302  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5303  * @phba: pointer to lpfc hba data structure.
5304  *
5305  * This routine is invoked to remove all memory resources allocated
5306  * to support rpis for SLI4 ports not supporting extents. This routine
5307  * presumes the caller has released all rpis consumed by fabric or port
5308  * logins and is prepared to have the header pages removed.
5309  **/
5310 void
5311 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5312 {
5313         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5314
5315         if (!phba->sli4_hba.rpi_hdrs_in_use)
5316                 goto exit;
5317
5318         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5319                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5320                 list_del(&rpi_hdr->list);
5321                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5322                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5323                 kfree(rpi_hdr->dmabuf);
5324                 kfree(rpi_hdr);
5325         }
5326  exit:
5327         /* There are no rpis available to the port now. */
5328         phba->sli4_hba.next_rpi = 0;
5329 }
5330
5331 /**
5332  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5333  * @pdev: pointer to pci device data structure.
5334  *
5335  * This routine is invoked to allocate the driver hba data structure for an
5336  * HBA device. If the allocation is successful, the phba reference to the
5337  * PCI device data structure is set.
5338  *
5339  * Return codes
5340  *      pointer to @phba - successful
5341  *      NULL - error
5342  **/
5343 static struct lpfc_hba *
5344 lpfc_hba_alloc(struct pci_dev *pdev)
5345 {
5346         struct lpfc_hba *phba;
5347
5348         /* Allocate memory for HBA structure */
5349         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5350         if (!phba) {
5351                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5352                 return NULL;
5353         }
5354
5355         /* Set reference to PCI device in HBA structure */
5356         phba->pcidev = pdev;
5357
5358         /* Assign an unused board number */
5359         phba->brd_no = lpfc_get_instance();
5360         if (phba->brd_no < 0) {
5361                 kfree(phba);
5362                 return NULL;
5363         }
5364
5365         spin_lock_init(&phba->ct_ev_lock);
5366         INIT_LIST_HEAD(&phba->ct_ev_waiters);
5367
5368         return phba;
5369 }
5370
5371 /**
5372  * lpfc_hba_free - Free driver hba data structure with a device.
5373  * @phba: pointer to lpfc hba data structure.
5374  *
5375  * This routine is invoked to free the driver hba data structure with an
5376  * HBA device.
5377  **/
5378 static void
5379 lpfc_hba_free(struct lpfc_hba *phba)
5380 {
5381         /* Release the driver assigned board number */
5382         idr_remove(&lpfc_hba_index, phba->brd_no);
5383
5384         kfree(phba);
5385         return;
5386 }
5387
5388 /**
5389  * lpfc_create_shost - Create hba physical port with associated scsi host.
5390  * @phba: pointer to lpfc hba data structure.
5391  *
5392  * This routine is invoked to create HBA physical port and associate a SCSI
5393  * host with it.
5394  *
5395  * Return codes
5396  *      0 - successful
5397  *      other values - error
5398  **/
5399 static int
5400 lpfc_create_shost(struct lpfc_hba *phba)
5401 {
5402         struct lpfc_vport *vport;
5403         struct Scsi_Host  *shost;
5404
5405         /* Initialize HBA FC structure */
5406         phba->fc_edtov = FF_DEF_EDTOV;
5407         phba->fc_ratov = FF_DEF_RATOV;
5408         phba->fc_altov = FF_DEF_ALTOV;
5409         phba->fc_arbtov = FF_DEF_ARBTOV;
5410
5411         atomic_set(&phba->sdev_cnt, 0);
5412         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5413         if (!vport)
5414                 return -ENODEV;
5415
5416         shost = lpfc_shost_from_vport(vport);
5417         phba->pport = vport;
5418         lpfc_debugfs_initialize(vport);
5419         /* Put reference to SCSI host to driver's device private data */
5420         pci_set_drvdata(phba->pcidev, shost);
5421
5422         return 0;
5423 }
5424
5425 /**
5426  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5427  * @phba: pointer to lpfc hba data structure.
5428  *
5429  * This routine is invoked to destroy HBA physical port and the associated
5430  * SCSI host.
5431  **/
5432 static void
5433 lpfc_destroy_shost(struct lpfc_hba *phba)
5434 {
5435         struct lpfc_vport *vport = phba->pport;
5436
5437         /* Destroy physical port that associated with the SCSI host */
5438         destroy_port(vport);
5439
5440         return;
5441 }
5442
5443 /**
5444  * lpfc_setup_bg - Setup Block guard structures and debug areas.
5445  * @phba: pointer to lpfc hba data structure.
5446  * @shost: the shost to be used to detect Block guard settings.
5447  *
5448  * This routine sets up the local Block guard protocol settings for @shost.
5449  * This routine also allocates memory for debugging bg buffers.
5450  **/
5451 static void
5452 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5453 {
5454         int pagecnt = 10;
5455         if (lpfc_prot_mask && lpfc_prot_guard) {
5456                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5457                                 "1478 Registering BlockGuard with the "
5458                                 "SCSI layer\n");
5459                 scsi_host_set_prot(shost, lpfc_prot_mask);
5460                 scsi_host_set_guard(shost, lpfc_prot_guard);
5461         }
5462         if (!_dump_buf_data) {
5463                 while (pagecnt) {
5464                         spin_lock_init(&_dump_buf_lock);
5465                         _dump_buf_data =
5466                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5467                         if (_dump_buf_data) {
5468                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5469                                         "9043 BLKGRD: allocated %d pages for "
5470                                        "_dump_buf_data at 0x%p\n",
5471                                        (1 << pagecnt), _dump_buf_data);
5472                                 _dump_buf_data_order = pagecnt;
5473                                 memset(_dump_buf_data, 0,
5474                                        ((1 << PAGE_SHIFT) << pagecnt));
5475                                 break;
5476                         } else
5477                                 --pagecnt;
5478                 }
5479                 if (!_dump_buf_data_order)
5480                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5481                                 "9044 BLKGRD: ERROR unable to allocate "
5482                                "memory for hexdump\n");
5483         } else
5484                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5485                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5486                        "\n", _dump_buf_data);
5487         if (!_dump_buf_dif) {
5488                 while (pagecnt) {
5489                         _dump_buf_dif =
5490                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5491                         if (_dump_buf_dif) {
5492                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5493                                         "9046 BLKGRD: allocated %d pages for "
5494                                        "_dump_buf_dif at 0x%p\n",
5495                                        (1 << pagecnt), _dump_buf_dif);
5496                                 _dump_buf_dif_order = pagecnt;
5497                                 memset(_dump_buf_dif, 0,
5498                                        ((1 << PAGE_SHIFT) << pagecnt));
5499                                 break;
5500                         } else
5501                                 --pagecnt;
5502                 }
5503                 if (!_dump_buf_dif_order)
5504                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5505                         "9047 BLKGRD: ERROR unable to allocate "
5506                                "memory for hexdump\n");
5507         } else
5508                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5509                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5510                        _dump_buf_dif);
5511 }
5512
5513 /**
5514  * lpfc_post_init_setup - Perform necessary device post initialization setup.
5515  * @phba: pointer to lpfc hba data structure.
5516  *
5517  * This routine is invoked to perform all the necessary post initialization
5518  * setup for the device.
5519  **/
5520 static void
5521 lpfc_post_init_setup(struct lpfc_hba *phba)
5522 {
5523         struct Scsi_Host  *shost;
5524         struct lpfc_adapter_event_header adapter_event;
5525
5526         /* Get the default values for Model Name and Description */
5527         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5528
5529         /*
5530          * hba setup may have changed the hba_queue_depth so we need to
5531          * adjust the value of can_queue.
5532          */
5533         shost = pci_get_drvdata(phba->pcidev);
5534         shost->can_queue = phba->cfg_hba_queue_depth - 10;
5535         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5536                 lpfc_setup_bg(phba, shost);
5537
5538         lpfc_host_attrib_init(shost);
5539
5540         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5541                 spin_lock_irq(shost->host_lock);
5542                 lpfc_poll_start_timer(phba);
5543                 spin_unlock_irq(shost->host_lock);
5544         }
5545
5546         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5547                         "0428 Perform SCSI scan\n");
5548         /* Send board arrival event to upper layer */
5549         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5550         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5551         fc_host_post_vendor_event(shost, fc_get_event_number(),
5552                                   sizeof(adapter_event),
5553                                   (char *) &adapter_event,
5554                                   LPFC_NL_VENDOR_ID);
5555         return;
5556 }
5557
5558 /**
5559  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5560  * @phba: pointer to lpfc hba data structure.
5561  *
5562  * This routine is invoked to set up the PCI device memory space for device
5563  * with SLI-3 interface spec.
5564  *
5565  * Return codes
5566  *      0 - successful
5567  *      other values - error
5568  **/
5569 static int
5570 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5571 {
5572         struct pci_dev *pdev;
5573         unsigned long bar0map_len, bar2map_len;
5574         int i, hbq_count;
5575         void *ptr;
5576         int error = -ENODEV;
5577
5578         /* Obtain PCI device reference */
5579         if (!phba->pcidev)
5580                 return error;
5581         else
5582                 pdev = phba->pcidev;
5583
5584         /* Set the device DMA mask size */
5585         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5586          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5587                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5588                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5589                         return error;
5590                 }
5591         }
5592
5593         /* Get the bus address of Bar0 and Bar2 and the number of bytes
5594          * required by each mapping.
5595          */
5596         phba->pci_bar0_map = pci_resource_start(pdev, 0);
5597         bar0map_len = pci_resource_len(pdev, 0);
5598
5599         phba->pci_bar2_map = pci_resource_start(pdev, 2);
5600         bar2map_len = pci_resource_len(pdev, 2);
5601
5602         /* Map HBA SLIM to a kernel virtual address. */
5603         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5604         if (!phba->slim_memmap_p) {
5605                 dev_printk(KERN_ERR, &pdev->dev,
5606                            "ioremap failed for SLIM memory.\n");
5607                 goto out;
5608         }
5609
5610         /* Map HBA Control Registers to a kernel virtual address. */
5611         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5612         if (!phba->ctrl_regs_memmap_p) {
5613                 dev_printk(KERN_ERR, &pdev->dev,
5614                            "ioremap failed for HBA control registers.\n");
5615                 goto out_iounmap_slim;
5616         }
5617
5618         /* Allocate memory for SLI-2 structures */
5619         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5620                                                SLI2_SLIM_SIZE,
5621                                                &phba->slim2p.phys,
5622                                                GFP_KERNEL);
5623         if (!phba->slim2p.virt)
5624                 goto out_iounmap;
5625
5626         memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5627         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5628         phba->mbox_ext = (phba->slim2p.virt +
5629                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5630         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5631         phba->IOCBs = (phba->slim2p.virt +
5632                        offsetof(struct lpfc_sli2_slim, IOCBs));
5633
5634         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5635                                                  lpfc_sli_hbq_size(),
5636                                                  &phba->hbqslimp.phys,
5637                                                  GFP_KERNEL);
5638         if (!phba->hbqslimp.virt)
5639                 goto out_free_slim;
5640
5641         hbq_count = lpfc_sli_hbq_count();
5642         ptr = phba->hbqslimp.virt;
5643         for (i = 0; i < hbq_count; ++i) {
5644                 phba->hbqs[i].hbq_virt = ptr;
5645                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5646                 ptr += (lpfc_hbq_defs[i]->entry_count *
5647                         sizeof(struct lpfc_hbq_entry));
5648         }
5649         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5650         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5651
5652         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5653
5654         INIT_LIST_HEAD(&phba->rb_pend_list);
5655
5656         phba->MBslimaddr = phba->slim_memmap_p;
5657         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5658         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5659         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5660         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5661
5662         return 0;
5663
5664 out_free_slim:
5665         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5666                           phba->slim2p.virt, phba->slim2p.phys);
5667 out_iounmap:
5668         iounmap(phba->ctrl_regs_memmap_p);
5669 out_iounmap_slim:
5670         iounmap(phba->slim_memmap_p);
5671 out:
5672         return error;
5673 }
5674
5675 /**
5676  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5677  * @phba: pointer to lpfc hba data structure.
5678  *
5679  * This routine is invoked to unset the PCI device memory space for device
5680  * with SLI-3 interface spec.
5681  **/
5682 static void
5683 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5684 {
5685         struct pci_dev *pdev;
5686
5687         /* Obtain PCI device reference */
5688         if (!phba->pcidev)
5689                 return;
5690         else
5691                 pdev = phba->pcidev;
5692
5693         /* Free coherent DMA memory allocated */
5694         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5695                           phba->hbqslimp.virt, phba->hbqslimp.phys);
5696         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5697                           phba->slim2p.virt, phba->slim2p.phys);
5698
5699         /* I/O memory unmap */
5700         iounmap(phba->ctrl_regs_memmap_p);
5701         iounmap(phba->slim_memmap_p);
5702
5703         return;
5704 }
5705
5706 /**
5707  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5708  * @phba: pointer to lpfc hba data structure.
5709  *
5710  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5711  * done and check status.
5712  *
5713  * Return 0 if successful, otherwise -ENODEV.
5714  **/
5715 int
5716 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5717 {
5718         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
5719         struct lpfc_register reg_data;
5720         int i, port_error = 0;
5721         uint32_t if_type;
5722
5723         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
5724         memset(&reg_data, 0, sizeof(reg_data));
5725         if (!phba->sli4_hba.PSMPHRregaddr)
5726                 return -ENODEV;
5727
5728         /* Wait up to 30 seconds for the SLI Port POST done and ready */
5729         for (i = 0; i < 3000; i++) {
5730                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
5731                         &portsmphr_reg.word0) ||
5732                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
5733                         /* Port has a fatal POST error, break out */
5734                         port_error = -ENODEV;
5735                         break;
5736                 }
5737                 if (LPFC_POST_STAGE_PORT_READY ==
5738                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
5739                         break;
5740                 msleep(10);
5741         }
5742
5743         /*
5744          * If there was a port error during POST, then don't proceed with
5745          * other register reads as the data may not be valid.  Just exit.
5746          */
5747         if (port_error) {
5748                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5749                         "1408 Port Failed POST - portsmphr=0x%x, "
5750                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5751                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5752                         portsmphr_reg.word0,
5753                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
5754                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
5755                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
5756                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
5757                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
5758                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
5759                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
5760                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
5761         } else {
5762                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5763                                 "2534 Device Info: SLIFamily=0x%x, "
5764                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5765                                 "SLIHint_2=0x%x, FT=0x%x\n",
5766                                 bf_get(lpfc_sli_intf_sli_family,
5767                                        &phba->sli4_hba.sli_intf),
5768                                 bf_get(lpfc_sli_intf_slirev,
5769                                        &phba->sli4_hba.sli_intf),
5770                                 bf_get(lpfc_sli_intf_if_type,
5771                                        &phba->sli4_hba.sli_intf),
5772                                 bf_get(lpfc_sli_intf_sli_hint1,
5773                                        &phba->sli4_hba.sli_intf),
5774                                 bf_get(lpfc_sli_intf_sli_hint2,
5775                                        &phba->sli4_hba.sli_intf),
5776                                 bf_get(lpfc_sli_intf_func_type,
5777                                        &phba->sli4_hba.sli_intf));
5778                 /*
5779                  * Check for other Port errors during the initialization
5780                  * process.  Fail the load if the port did not come up
5781                  * correctly.
5782                  */
5783                 if_type = bf_get(lpfc_sli_intf_if_type,
5784                                  &phba->sli4_hba.sli_intf);
5785                 switch (if_type) {
5786                 case LPFC_SLI_INTF_IF_TYPE_0:
5787                         phba->sli4_hba.ue_mask_lo =
5788                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
5789                         phba->sli4_hba.ue_mask_hi =
5790                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
5791                         uerrlo_reg.word0 =
5792                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
5793                         uerrhi_reg.word0 =
5794                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
5795                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5796                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5797                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5798                                                 "1422 Unrecoverable Error "
5799                                                 "Detected during POST "
5800                                                 "uerr_lo_reg=0x%x, "
5801                                                 "uerr_hi_reg=0x%x, "
5802                                                 "ue_mask_lo_reg=0x%x, "
5803                                                 "ue_mask_hi_reg=0x%x\n",
5804                                                 uerrlo_reg.word0,
5805                                                 uerrhi_reg.word0,
5806                                                 phba->sli4_hba.ue_mask_lo,
5807                                                 phba->sli4_hba.ue_mask_hi);
5808                                 port_error = -ENODEV;
5809                         }
5810                         break;
5811                 case LPFC_SLI_INTF_IF_TYPE_2:
5812                         /* Final checks.  The port status should be clean. */
5813                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
5814                                 &reg_data.word0) ||
5815                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
5816                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
5817                                 phba->work_status[0] =
5818                                         readl(phba->sli4_hba.u.if_type2.
5819                                               ERR1regaddr);
5820                                 phba->work_status[1] =
5821                                         readl(phba->sli4_hba.u.if_type2.
5822                                               ERR2regaddr);
5823                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5824                                         "2888 Unrecoverable port error "
5825                                         "following POST: port status reg "
5826                                         "0x%x, port_smphr reg 0x%x, "
5827                                         "error 1=0x%x, error 2=0x%x\n",
5828                                         reg_data.word0,
5829                                         portsmphr_reg.word0,
5830                                         phba->work_status[0],
5831                                         phba->work_status[1]);
5832                                 port_error = -ENODEV;
5833                         }
5834                         break;
5835                 case LPFC_SLI_INTF_IF_TYPE_1:
5836                 default:
5837                         break;
5838                 }
5839         }
5840         return port_error;
5841 }
5842
5843 /**
5844  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5845  * @phba: pointer to lpfc hba data structure.
5846  * @if_type:  The SLI4 interface type getting configured.
5847  *
5848  * This routine is invoked to set up SLI4 BAR0 PCI config space register
5849  * memory map.
5850  **/
5851 static void
5852 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
5853 {
5854         switch (if_type) {
5855         case LPFC_SLI_INTF_IF_TYPE_0:
5856                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
5857                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
5858                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
5859                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
5860                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
5861                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
5862                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
5863                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
5864                 phba->sli4_hba.SLIINTFregaddr =
5865                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5866                 break;
5867         case LPFC_SLI_INTF_IF_TYPE_2:
5868                 phba->sli4_hba.u.if_type2.ERR1regaddr =
5869                         phba->sli4_hba.conf_regs_memmap_p +
5870                                                 LPFC_CTL_PORT_ER1_OFFSET;
5871                 phba->sli4_hba.u.if_type2.ERR2regaddr =
5872                         phba->sli4_hba.conf_regs_memmap_p +
5873                                                 LPFC_CTL_PORT_ER2_OFFSET;
5874                 phba->sli4_hba.u.if_type2.CTRLregaddr =
5875                         phba->sli4_hba.conf_regs_memmap_p +
5876                                                 LPFC_CTL_PORT_CTL_OFFSET;
5877                 phba->sli4_hba.u.if_type2.STATUSregaddr =
5878                         phba->sli4_hba.conf_regs_memmap_p +
5879                                                 LPFC_CTL_PORT_STA_OFFSET;
5880                 phba->sli4_hba.SLIINTFregaddr =
5881                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5882                 phba->sli4_hba.PSMPHRregaddr =
5883                         phba->sli4_hba.conf_regs_memmap_p +
5884                                                 LPFC_CTL_PORT_SEM_OFFSET;
5885                 phba->sli4_hba.RQDBregaddr =
5886                         phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
5887                 phba->sli4_hba.WQDBregaddr =
5888                         phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
5889                 phba->sli4_hba.EQCQDBregaddr =
5890                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
5891                 phba->sli4_hba.MQDBregaddr =
5892                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
5893                 phba->sli4_hba.BMBXregaddr =
5894                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
5895                 break;
5896         case LPFC_SLI_INTF_IF_TYPE_1:
5897         default:
5898                 dev_printk(KERN_ERR, &phba->pcidev->dev,
5899                            "FATAL - unsupported SLI4 interface type - %d\n",
5900                            if_type);
5901                 break;
5902         }
5903 }
5904
5905 /**
5906  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5907  * @phba: pointer to lpfc hba data structure.
5908  *
5909  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5910  * memory map.
5911  **/
5912 static void
5913 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5914 {
5915         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5916                 LPFC_SLIPORT_IF0_SMPHR;
5917         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5918                 LPFC_HST_ISR0;
5919         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5920                 LPFC_HST_IMR0;
5921         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5922                 LPFC_HST_ISCR0;
5923 }
5924
5925 /**
5926  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5927  * @phba: pointer to lpfc hba data structure.
5928  * @vf: virtual function number
5929  *
5930  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5931  * based on the given viftual function number, @vf.
5932  *
5933  * Return 0 if successful, otherwise -ENODEV.
5934  **/
5935 static int
5936 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5937 {
5938         if (vf > LPFC_VIR_FUNC_MAX)
5939                 return -ENODEV;
5940
5941         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5942                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5943         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5944                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5945         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5946                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5947         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5948                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5949         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5950                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5951         return 0;
5952 }
5953
5954 /**
5955  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5956  * @phba: pointer to lpfc hba data structure.
5957  *
5958  * This routine is invoked to create the bootstrap mailbox
5959  * region consistent with the SLI-4 interface spec.  This
5960  * routine allocates all memory necessary to communicate
5961  * mailbox commands to the port and sets up all alignment
5962  * needs.  No locks are expected to be held when calling
5963  * this routine.
5964  *
5965  * Return codes
5966  *      0 - successful
5967  *      -ENOMEM - could not allocated memory.
5968  **/
5969 static int
5970 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5971 {
5972         uint32_t bmbx_size;
5973         struct lpfc_dmabuf *dmabuf;
5974         struct dma_address *dma_address;
5975         uint32_t pa_addr;
5976         uint64_t phys_addr;
5977
5978         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5979         if (!dmabuf)
5980                 return -ENOMEM;
5981
5982         /*
5983          * The bootstrap mailbox region is comprised of 2 parts
5984          * plus an alignment restriction of 16 bytes.
5985          */
5986         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5987         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5988                                           bmbx_size,
5989                                           &dmabuf->phys,
5990                                           GFP_KERNEL);
5991         if (!dmabuf->virt) {
5992                 kfree(dmabuf);
5993                 return -ENOMEM;
5994         }
5995         memset(dmabuf->virt, 0, bmbx_size);
5996
5997         /*
5998          * Initialize the bootstrap mailbox pointers now so that the register
5999          * operations are simple later.  The mailbox dma address is required
6000          * to be 16-byte aligned.  Also align the virtual memory as each
6001          * maibox is copied into the bmbx mailbox region before issuing the
6002          * command to the port.
6003          */
6004         phba->sli4_hba.bmbx.dmabuf = dmabuf;
6005         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6006
6007         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6008                                               LPFC_ALIGN_16_BYTE);
6009         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6010                                               LPFC_ALIGN_16_BYTE);
6011
6012         /*
6013          * Set the high and low physical addresses now.  The SLI4 alignment
6014          * requirement is 16 bytes and the mailbox is posted to the port
6015          * as two 30-bit addresses.  The other data is a bit marking whether
6016          * the 30-bit address is the high or low address.
6017          * Upcast bmbx aphys to 64bits so shift instruction compiles
6018          * clean on 32 bit machines.
6019          */
6020         dma_address = &phba->sli4_hba.bmbx.dma_address;
6021         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6022         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6023         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6024                                            LPFC_BMBX_BIT1_ADDR_HI);
6025
6026         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6027         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6028                                            LPFC_BMBX_BIT1_ADDR_LO);
6029         return 0;
6030 }
6031
6032 /**
6033  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6034  * @phba: pointer to lpfc hba data structure.
6035  *
6036  * This routine is invoked to teardown the bootstrap mailbox
6037  * region and release all host resources. This routine requires
6038  * the caller to ensure all mailbox commands recovered, no
6039  * additional mailbox comands are sent, and interrupts are disabled
6040  * before calling this routine.
6041  *
6042  **/
6043 static void
6044 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6045 {
6046         dma_free_coherent(&phba->pcidev->dev,
6047                           phba->sli4_hba.bmbx.bmbx_size,
6048                           phba->sli4_hba.bmbx.dmabuf->virt,
6049                           phba->sli4_hba.bmbx.dmabuf->phys);
6050
6051         kfree(phba->sli4_hba.bmbx.dmabuf);
6052         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6053 }
6054
6055 /**
6056  * lpfc_sli4_read_config - Get the config parameters.
6057  * @phba: pointer to lpfc hba data structure.
6058  *
6059  * This routine is invoked to read the configuration parameters from the HBA.
6060  * The configuration parameters are used to set the base and maximum values
6061  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6062  * allocation for the port.
6063  *
6064  * Return codes
6065  *      0 - successful
6066  *      -ENOMEM - No available memory
6067  *      -EIO - The mailbox failed to complete successfully.
6068  **/
6069 int
6070 lpfc_sli4_read_config(struct lpfc_hba *phba)
6071 {
6072         LPFC_MBOXQ_t *pmb;
6073         struct lpfc_mbx_read_config *rd_config;
6074         union  lpfc_sli4_cfg_shdr *shdr;
6075         uint32_t shdr_status, shdr_add_status;
6076         struct lpfc_mbx_get_func_cfg *get_func_cfg;
6077         struct lpfc_rsrc_desc_fcfcoe *desc;
6078         uint32_t desc_count;
6079         int length, i, rc = 0;
6080
6081         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6082         if (!pmb) {
6083                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6084                                 "2011 Unable to allocate memory for issuing "
6085                                 "SLI_CONFIG_SPECIAL mailbox command\n");
6086                 return -ENOMEM;
6087         }
6088
6089         lpfc_read_config(phba, pmb);
6090
6091         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6092         if (rc != MBX_SUCCESS) {
6093                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6094                         "2012 Mailbox failed , mbxCmd x%x "
6095                         "READ_CONFIG, mbxStatus x%x\n",
6096                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
6097                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
6098                 rc = -EIO;
6099         } else {
6100                 rd_config = &pmb->u.mqe.un.rd_config;
6101                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6102                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6103                         phba->sli4_hba.lnk_info.lnk_tp =
6104                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6105                         phba->sli4_hba.lnk_info.lnk_no =
6106                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6107                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6108                                         "3081 lnk_type:%d, lnk_numb:%d\n",
6109                                         phba->sli4_hba.lnk_info.lnk_tp,
6110                                         phba->sli4_hba.lnk_info.lnk_no);
6111                 } else
6112                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6113                                         "3082 Mailbox (x%x) returned ldv:x0\n",
6114                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
6115                 phba->sli4_hba.extents_in_use =
6116                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6117                 phba->sli4_hba.max_cfg_param.max_xri =
6118                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6119                 phba->sli4_hba.max_cfg_param.xri_base =
6120                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6121                 phba->sli4_hba.max_cfg_param.max_vpi =
6122                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6123                 phba->sli4_hba.max_cfg_param.vpi_base =
6124                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6125                 phba->sli4_hba.max_cfg_param.max_rpi =
6126                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6127                 phba->sli4_hba.max_cfg_param.rpi_base =
6128                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6129                 phba->sli4_hba.max_cfg_param.max_vfi =
6130                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6131                 phba->sli4_hba.max_cfg_param.vfi_base =
6132                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6133                 phba->sli4_hba.max_cfg_param.max_fcfi =
6134                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6135                 phba->sli4_hba.max_cfg_param.max_eq =
6136                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6137                 phba->sli4_hba.max_cfg_param.max_rq =
6138                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6139                 phba->sli4_hba.max_cfg_param.max_wq =
6140                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6141                 phba->sli4_hba.max_cfg_param.max_cq =
6142                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6143                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6144                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6145                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6146                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6147                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6148                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6149                 phba->max_vports = phba->max_vpi;
6150                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6151                                 "2003 cfg params Extents? %d "
6152                                 "XRI(B:%d M:%d), "
6153                                 "VPI(B:%d M:%d) "
6154                                 "VFI(B:%d M:%d) "
6155                                 "RPI(B:%d M:%d) "
6156                                 "FCFI(Count:%d)\n",
6157                                 phba->sli4_hba.extents_in_use,
6158                                 phba->sli4_hba.max_cfg_param.xri_base,
6159                                 phba->sli4_hba.max_cfg_param.max_xri,
6160                                 phba->sli4_hba.max_cfg_param.vpi_base,
6161                                 phba->sli4_hba.max_cfg_param.max_vpi,
6162                                 phba->sli4_hba.max_cfg_param.vfi_base,
6163                                 phba->sli4_hba.max_cfg_param.max_vfi,
6164                                 phba->sli4_hba.max_cfg_param.rpi_base,
6165                                 phba->sli4_hba.max_cfg_param.max_rpi,
6166                                 phba->sli4_hba.max_cfg_param.max_fcfi);
6167         }
6168
6169         if (rc)
6170                 goto read_cfg_out;
6171
6172         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6173         if (phba->cfg_hba_queue_depth >
6174                 (phba->sli4_hba.max_cfg_param.max_xri -
6175                         lpfc_sli4_get_els_iocb_cnt(phba)))
6176                 phba->cfg_hba_queue_depth =
6177                         phba->sli4_hba.max_cfg_param.max_xri -
6178                                 lpfc_sli4_get_els_iocb_cnt(phba);
6179
6180         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6181             LPFC_SLI_INTF_IF_TYPE_2)
6182                 goto read_cfg_out;
6183
6184         /* get the pf# and vf# for SLI4 if_type 2 port */
6185         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6186                   sizeof(struct lpfc_sli4_cfg_mhdr));
6187         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6188                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6189                          length, LPFC_SLI4_MBX_EMBED);
6190
6191         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6192         shdr = (union lpfc_sli4_cfg_shdr *)
6193                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6194         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6195         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6196         if (rc || shdr_status || shdr_add_status) {
6197                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6198                                 "3026 Mailbox failed , mbxCmd x%x "
6199                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6200                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6201                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6202                 rc = -EIO;
6203                 goto read_cfg_out;
6204         }
6205
6206         /* search for fc_fcoe resrouce descriptor */
6207         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6208         desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6209
6210         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6211                 desc = (struct lpfc_rsrc_desc_fcfcoe *)
6212                         &get_func_cfg->func_cfg.desc[i];
6213                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6214                     bf_get(lpfc_rsrc_desc_pcie_type, desc)) {
6215                         phba->sli4_hba.iov.pf_number =
6216                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6217                         phba->sli4_hba.iov.vf_number =
6218                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6219                         break;
6220                 }
6221         }
6222
6223         if (i < LPFC_RSRC_DESC_MAX_NUM)
6224                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6225                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6226                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6227                                 phba->sli4_hba.iov.vf_number);
6228         else {
6229                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6230                                 "3028 GET_FUNCTION_CONFIG: failed to find "
6231                                 "Resrouce Descriptor:x%x\n",
6232                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
6233                 rc = -EIO;
6234         }
6235
6236 read_cfg_out:
6237         mempool_free(pmb, phba->mbox_mem_pool);
6238         return rc;
6239 }
6240
6241 /**
6242  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6243  * @phba: pointer to lpfc hba data structure.
6244  *
6245  * This routine is invoked to setup the port-side endian order when
6246  * the port if_type is 0.  This routine has no function for other
6247  * if_types.
6248  *
6249  * Return codes
6250  *      0 - successful
6251  *      -ENOMEM - No available memory
6252  *      -EIO - The mailbox failed to complete successfully.
6253  **/
6254 static int
6255 lpfc_setup_endian_order(struct lpfc_hba *phba)
6256 {
6257         LPFC_MBOXQ_t *mboxq;
6258         uint32_t if_type, rc = 0;
6259         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6260                                       HOST_ENDIAN_HIGH_WORD1};
6261
6262         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6263         switch (if_type) {
6264         case LPFC_SLI_INTF_IF_TYPE_0:
6265                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6266                                                        GFP_KERNEL);
6267                 if (!mboxq) {
6268                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6269                                         "0492 Unable to allocate memory for "
6270                                         "issuing SLI_CONFIG_SPECIAL mailbox "
6271                                         "command\n");
6272                         return -ENOMEM;
6273                 }
6274
6275                 /*
6276                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6277                  * two words to contain special data values and no other data.
6278                  */
6279                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6280                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6281                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6282                 if (rc != MBX_SUCCESS) {
6283                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6284                                         "0493 SLI_CONFIG_SPECIAL mailbox "
6285                                         "failed with status x%x\n",
6286                                         rc);
6287                         rc = -EIO;
6288                 }
6289                 mempool_free(mboxq, phba->mbox_mem_pool);
6290                 break;
6291         case LPFC_SLI_INTF_IF_TYPE_2:
6292         case LPFC_SLI_INTF_IF_TYPE_1:
6293         default:
6294                 break;
6295         }
6296         return rc;
6297 }
6298
6299 /**
6300  * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
6301  * @phba: pointer to lpfc hba data structure.
6302  *
6303  * This routine is invoked to check the user settable queue counts for EQs and
6304  * CQs. after this routine is called the counts will be set to valid values that
6305  * adhere to the constraints of the system's interrupt vectors and the port's
6306  * queue resources.
6307  *
6308  * Return codes
6309  *      0 - successful
6310  *      -ENOMEM - No available memory
6311  **/
6312 static int
6313 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
6314 {
6315         int cfg_fcp_wq_count;
6316         int cfg_fcp_eq_count;
6317
6318         /*
6319          * Sanity check for confiugred queue parameters against the run-time
6320          * device parameters
6321          */
6322
6323         /* Sanity check on FCP fast-path WQ parameters */
6324         cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
6325         if (cfg_fcp_wq_count >
6326             (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
6327                 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
6328                                    LPFC_SP_WQN_DEF;
6329                 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
6330                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6331                                         "2581 Not enough WQs (%d) from "
6332                                         "the pci function for supporting "
6333                                         "FCP WQs (%d)\n",
6334                                         phba->sli4_hba.max_cfg_param.max_wq,
6335                                         phba->cfg_fcp_wq_count);
6336                         goto out_error;
6337                 }
6338                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6339                                 "2582 Not enough WQs (%d) from the pci "
6340                                 "function for supporting the requested "
6341                                 "FCP WQs (%d), the actual FCP WQs can "
6342                                 "be supported: %d\n",
6343                                 phba->sli4_hba.max_cfg_param.max_wq,
6344                                 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
6345         }
6346         /* The actual number of FCP work queues adopted */
6347         phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
6348
6349         /* Sanity check on FCP fast-path EQ parameters */
6350         cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
6351         if (cfg_fcp_eq_count >
6352             (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
6353                 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
6354                                    LPFC_SP_EQN_DEF;
6355                 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
6356                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6357                                         "2574 Not enough EQs (%d) from the "
6358                                         "pci function for supporting FCP "
6359                                         "EQs (%d)\n",
6360                                         phba->sli4_hba.max_cfg_param.max_eq,
6361                                         phba->cfg_fcp_eq_count);
6362                         goto out_error;
6363                 }
6364                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6365                                 "2575 Not enough EQs (%d) from the pci "
6366                                 "function for supporting the requested "
6367                                 "FCP EQs (%d), the actual FCP EQs can "
6368                                 "be supported: %d\n",
6369                                 phba->sli4_hba.max_cfg_param.max_eq,
6370                                 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
6371         }
6372         /* It does not make sense to have more EQs than WQs */
6373         if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
6374                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6375                                 "2593 The FCP EQ count(%d) cannot be greater "
6376                                 "than the FCP WQ count(%d), limiting the "
6377                                 "FCP EQ count to %d\n", cfg_fcp_eq_count,
6378                                 phba->cfg_fcp_wq_count,
6379                                 phba->cfg_fcp_wq_count);
6380                 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
6381         }
6382         /* The actual number of FCP event queues adopted */
6383         phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
6384         /* The overall number of event queues used */
6385         phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
6386
6387         /* Get EQ depth from module parameter, fake the default for now */
6388         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6389         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
6390
6391         /* Get CQ depth from module parameter, fake the default for now */
6392         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6393         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6394
6395         return 0;
6396 out_error:
6397         return -ENOMEM;
6398 }
6399
6400 /**
6401  * lpfc_sli4_queue_create - Create all the SLI4 queues
6402  * @phba: pointer to lpfc hba data structure.
6403  *
6404  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6405  * operation. For each SLI4 queue type, the parameters such as queue entry
6406  * count (queue depth) shall be taken from the module parameter. For now,
6407  * we just use some constant number as place holder.
6408  *
6409  * Return codes
6410  *      0 - sucessful
6411  *      -ENOMEM - No availble memory
6412  *      -EIO - The mailbox failed to complete successfully.
6413  **/
6414 int
6415 lpfc_sli4_queue_create(struct lpfc_hba *phba)
6416 {
6417         struct lpfc_queue *qdesc;
6418         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6419
6420         /*
6421          * Create Event Queues (EQs)
6422          */
6423
6424         /* Create slow path event queue */
6425         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6426                                       phba->sli4_hba.eq_ecount);
6427         if (!qdesc) {
6428                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6429                                 "0496 Failed allocate slow-path EQ\n");
6430                 goto out_error;
6431         }
6432         phba->sli4_hba.sp_eq = qdesc;
6433
6434         /*
6435          * Create fast-path FCP Event Queue(s).  The cfg_fcp_eq_count can be
6436          * zero whenever there is exactly one interrupt vector.  This is not
6437          * an error.
6438          */
6439         if (phba->cfg_fcp_eq_count) {
6440                 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
6441                                        phba->cfg_fcp_eq_count), GFP_KERNEL);
6442                 if (!phba->sli4_hba.fp_eq) {
6443                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6444                                         "2576 Failed allocate memory for "
6445                                         "fast-path EQ record array\n");
6446                         goto out_free_sp_eq;
6447                 }
6448         }
6449         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6450                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6451                                               phba->sli4_hba.eq_ecount);
6452                 if (!qdesc) {
6453                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6454                                         "0497 Failed allocate fast-path EQ\n");
6455                         goto out_free_fp_eq;
6456                 }
6457                 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
6458         }
6459
6460         /*
6461          * Create Complete Queues (CQs)
6462          */
6463
6464         /* Create slow-path Mailbox Command Complete Queue */
6465         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6466                                       phba->sli4_hba.cq_ecount);
6467         if (!qdesc) {
6468                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6469                                 "0500 Failed allocate slow-path mailbox CQ\n");
6470                 goto out_free_fp_eq;
6471         }
6472         phba->sli4_hba.mbx_cq = qdesc;
6473
6474         /* Create slow-path ELS Complete Queue */
6475         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6476                                       phba->sli4_hba.cq_ecount);
6477         if (!qdesc) {
6478                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6479                                 "0501 Failed allocate slow-path ELS CQ\n");
6480                 goto out_free_mbx_cq;
6481         }
6482         phba->sli4_hba.els_cq = qdesc;
6483
6484
6485         /*
6486          * Create fast-path FCP Completion Queue(s), one-to-one with FCP EQs.
6487          * If there are no FCP EQs then create exactly one FCP CQ.
6488          */
6489         if (phba->cfg_fcp_eq_count)
6490                 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6491                                                  phba->cfg_fcp_eq_count),
6492                                                 GFP_KERNEL);
6493         else
6494                 phba->sli4_hba.fcp_cq = kzalloc(sizeof(struct lpfc_queue *),
6495                                                 GFP_KERNEL);
6496         if (!phba->sli4_hba.fcp_cq) {
6497                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6498                                 "2577 Failed allocate memory for fast-path "
6499                                 "CQ record array\n");
6500                 goto out_free_els_cq;
6501         }
6502         fcp_cqidx = 0;
6503         do {
6504                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6505                                               phba->sli4_hba.cq_ecount);
6506                 if (!qdesc) {
6507                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6508                                         "0499 Failed allocate fast-path FCP "
6509                                         "CQ (%d)\n", fcp_cqidx);
6510                         goto out_free_fcp_cq;
6511                 }
6512                 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
6513         } while (++fcp_cqidx < phba->cfg_fcp_eq_count);
6514
6515         /* Create Mailbox Command Queue */
6516         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6517         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6518
6519         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6520                                       phba->sli4_hba.mq_ecount);
6521         if (!qdesc) {
6522                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6523                                 "0505 Failed allocate slow-path MQ\n");
6524                 goto out_free_fcp_cq;
6525         }
6526         phba->sli4_hba.mbx_wq = qdesc;
6527
6528         /*
6529          * Create all the Work Queues (WQs)
6530          */
6531         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6532         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6533
6534         /* Create slow-path ELS Work Queue */
6535         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6536                                       phba->sli4_hba.wq_ecount);
6537         if (!qdesc) {
6538                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6539                                 "0504 Failed allocate slow-path ELS WQ\n");
6540                 goto out_free_mbx_wq;
6541         }
6542         phba->sli4_hba.els_wq = qdesc;
6543
6544         /* Create fast-path FCP Work Queue(s) */
6545         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6546                                 phba->cfg_fcp_wq_count), GFP_KERNEL);
6547         if (!phba->sli4_hba.fcp_wq) {
6548                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6549                                 "2578 Failed allocate memory for fast-path "
6550                                 "WQ record array\n");
6551                 goto out_free_els_wq;
6552         }
6553         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6554                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6555                                               phba->sli4_hba.wq_ecount);
6556                 if (!qdesc) {
6557                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6558                                         "0503 Failed allocate fast-path FCP "
6559                                         "WQ (%d)\n", fcp_wqidx);
6560                         goto out_free_fcp_wq;
6561                 }
6562                 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
6563         }
6564
6565         /*
6566          * Create Receive Queue (RQ)
6567          */
6568         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6569         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6570
6571         /* Create Receive Queue for header */
6572         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6573                                       phba->sli4_hba.rq_ecount);
6574         if (!qdesc) {
6575                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6576                                 "0506 Failed allocate receive HRQ\n");
6577                 goto out_free_fcp_wq;
6578         }
6579         phba->sli4_hba.hdr_rq = qdesc;
6580
6581         /* Create Receive Queue for data */
6582         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6583                                       phba->sli4_hba.rq_ecount);
6584         if (!qdesc) {
6585                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6586                                 "0507 Failed allocate receive DRQ\n");
6587                 goto out_free_hdr_rq;
6588         }
6589         phba->sli4_hba.dat_rq = qdesc;
6590
6591         return 0;
6592
6593 out_free_hdr_rq:
6594         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6595         phba->sli4_hba.hdr_rq = NULL;
6596 out_free_fcp_wq:
6597         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
6598                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
6599                 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
6600         }
6601         kfree(phba->sli4_hba.fcp_wq);
6602         phba->sli4_hba.fcp_wq = NULL;
6603 out_free_els_wq:
6604         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6605         phba->sli4_hba.els_wq = NULL;
6606 out_free_mbx_wq:
6607         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6608         phba->sli4_hba.mbx_wq = NULL;
6609 out_free_fcp_cq:
6610         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
6611                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
6612                 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
6613         }
6614         kfree(phba->sli4_hba.fcp_cq);
6615         phba->sli4_hba.fcp_cq = NULL;
6616 out_free_els_cq:
6617         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6618         phba->sli4_hba.els_cq = NULL;
6619 out_free_mbx_cq:
6620         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6621         phba->sli4_hba.mbx_cq = NULL;
6622 out_free_fp_eq:
6623         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
6624                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
6625                 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
6626         }
6627         kfree(phba->sli4_hba.fp_eq);
6628         phba->sli4_hba.fp_eq = NULL;
6629 out_free_sp_eq:
6630         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6631         phba->sli4_hba.sp_eq = NULL;
6632 out_error:
6633         return -ENOMEM;
6634 }
6635
6636 /**
6637  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6638  * @phba: pointer to lpfc hba data structure.
6639  *
6640  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6641  * operation.
6642  *
6643  * Return codes
6644  *      0 - successful
6645  *      -ENOMEM - No available memory
6646  *      -EIO - The mailbox failed to complete successfully.
6647  **/
6648 void
6649 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6650 {
6651         int fcp_qidx;
6652
6653         /* Release mailbox command work queue */
6654         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6655         phba->sli4_hba.mbx_wq = NULL;
6656
6657         /* Release ELS work queue */
6658         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6659         phba->sli4_hba.els_wq = NULL;
6660
6661         /* Release FCP work queue */
6662         if (phba->sli4_hba.fcp_wq != NULL)
6663                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count;
6664                      fcp_qidx++)
6665                         lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
6666         kfree(phba->sli4_hba.fcp_wq);
6667         phba->sli4_hba.fcp_wq = NULL;
6668
6669         /* Release unsolicited receive queue */
6670         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6671         phba->sli4_hba.hdr_rq = NULL;
6672         lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
6673         phba->sli4_hba.dat_rq = NULL;
6674
6675         /* Release ELS complete queue */
6676         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6677         phba->sli4_hba.els_cq = NULL;
6678
6679         /* Release mailbox command complete queue */
6680         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6681         phba->sli4_hba.mbx_cq = NULL;
6682
6683         /* Release FCP response complete queue */
6684         fcp_qidx = 0;
6685         if (phba->sli4_hba.fcp_cq != NULL)
6686                 do
6687                         lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
6688                 while (++fcp_qidx < phba->cfg_fcp_eq_count);
6689         kfree(phba->sli4_hba.fcp_cq);
6690         phba->sli4_hba.fcp_cq = NULL;
6691
6692         /* Release fast-path event queue */
6693         if (phba->sli4_hba.fp_eq != NULL)
6694                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count;
6695                      fcp_qidx++)
6696                         lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
6697         kfree(phba->sli4_hba.fp_eq);
6698         phba->sli4_hba.fp_eq = NULL;
6699
6700         /* Release slow-path event queue */
6701         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6702         phba->sli4_hba.sp_eq = NULL;
6703
6704         return;
6705 }
6706
6707 /**
6708  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6709  * @phba: pointer to lpfc hba data structure.
6710  *
6711  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6712  * operation.
6713  *
6714  * Return codes
6715  *      0 - successful
6716  *      -ENOMEM - No available memory
6717  *      -EIO - The mailbox failed to complete successfully.
6718  **/
6719 int
6720 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
6721 {
6722         int rc = -ENOMEM;
6723         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6724         int fcp_cq_index = 0;
6725
6726         /*
6727          * Set up Event Queues (EQs)
6728          */
6729
6730         /* Set up slow-path event queue */
6731         if (!phba->sli4_hba.sp_eq) {
6732                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6733                                 "0520 Slow-path EQ not allocated\n");
6734                 goto out_error;
6735         }
6736         rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
6737                             LPFC_SP_DEF_IMAX);
6738         if (rc) {
6739                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6740                                 "0521 Failed setup of slow-path EQ: "
6741                                 "rc = 0x%x\n", rc);
6742                 goto out_error;
6743         }
6744         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6745                         "2583 Slow-path EQ setup: queue-id=%d\n",
6746                         phba->sli4_hba.sp_eq->queue_id);
6747
6748         /* Set up fast-path event queue */
6749         if (phba->cfg_fcp_eq_count && !phba->sli4_hba.fp_eq) {
6750                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6751                                 "3147 Fast-path EQs not allocated\n");
6752                 rc = -ENOMEM;
6753                 goto out_destroy_sp_eq;
6754         }
6755         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6756                 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
6757                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6758                                         "0522 Fast-path EQ (%d) not "
6759                                         "allocated\n", fcp_eqidx);
6760                         rc = -ENOMEM;
6761                         goto out_destroy_fp_eq;
6762                 }
6763                 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6764                                     phba->cfg_fcp_imax);
6765                 if (rc) {
6766                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6767                                         "0523 Failed setup of fast-path EQ "
6768                                         "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6769                         goto out_destroy_fp_eq;
6770                 }
6771                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6772                                 "2584 Fast-path EQ setup: "
6773                                 "queue[%d]-id=%d\n", fcp_eqidx,
6774                                 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6775         }
6776
6777         /*
6778          * Set up Complete Queues (CQs)
6779          */
6780
6781         /* Set up slow-path MBOX Complete Queue as the first CQ */
6782         if (!phba->sli4_hba.mbx_cq) {
6783                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6784                                 "0528 Mailbox CQ not allocated\n");
6785                 rc = -ENOMEM;
6786                 goto out_destroy_fp_eq;
6787         }
6788         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6789                             LPFC_MCQ, LPFC_MBOX);
6790         if (rc) {
6791                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6792                                 "0529 Failed setup of slow-path mailbox CQ: "
6793                                 "rc = 0x%x\n", rc);
6794                 goto out_destroy_fp_eq;
6795         }
6796         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6797                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6798                         phba->sli4_hba.mbx_cq->queue_id,
6799                         phba->sli4_hba.sp_eq->queue_id);
6800
6801         /* Set up slow-path ELS Complete Queue */
6802         if (!phba->sli4_hba.els_cq) {
6803                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6804                                 "0530 ELS CQ not allocated\n");
6805                 rc = -ENOMEM;
6806                 goto out_destroy_mbx_cq;
6807         }
6808         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6809                             LPFC_WCQ, LPFC_ELS);
6810         if (rc) {
6811                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6812                                 "0531 Failed setup of slow-path ELS CQ: "
6813                                 "rc = 0x%x\n", rc);
6814                 goto out_destroy_mbx_cq;
6815         }
6816         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6817                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6818                         phba->sli4_hba.els_cq->queue_id,
6819                         phba->sli4_hba.sp_eq->queue_id);
6820
6821         /* Set up fast-path FCP Response Complete Queue */
6822         if (!phba->sli4_hba.fcp_cq) {
6823                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6824                                 "3148 Fast-path FCP CQ array not "
6825                                 "allocated\n");
6826                 rc = -ENOMEM;
6827                 goto out_destroy_els_cq;
6828         }
6829         fcp_cqidx = 0;
6830         do {
6831                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6832                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6833                                         "0526 Fast-path FCP CQ (%d) not "
6834                                         "allocated\n", fcp_cqidx);
6835                         rc = -ENOMEM;
6836                         goto out_destroy_fcp_cq;
6837                 }
6838                 if (phba->cfg_fcp_eq_count)
6839                         rc = lpfc_cq_create(phba,
6840                                             phba->sli4_hba.fcp_cq[fcp_cqidx],
6841                                             phba->sli4_hba.fp_eq[fcp_cqidx],
6842                                             LPFC_WCQ, LPFC_FCP);
6843                 else
6844                         rc = lpfc_cq_create(phba,
6845                                             phba->sli4_hba.fcp_cq[fcp_cqidx],
6846                                             phba->sli4_hba.sp_eq,
6847                                             LPFC_WCQ, LPFC_FCP);
6848                 if (rc) {
6849                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6850                                         "0527 Failed setup of fast-path FCP "
6851                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6852                         goto out_destroy_fcp_cq;
6853                 }
6854                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6855                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
6856                                 "parent %seq[%d]-id=%d\n",
6857                                 fcp_cqidx,
6858                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6859                                 (phba->cfg_fcp_eq_count) ? "" : "sp_",
6860                                 fcp_cqidx,
6861                                 (phba->cfg_fcp_eq_count) ?
6862                                    phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id :
6863                                    phba->sli4_hba.sp_eq->queue_id);
6864         } while (++fcp_cqidx < phba->cfg_fcp_eq_count);
6865
6866         /*
6867          * Set up all the Work Queues (WQs)
6868          */
6869
6870         /* Set up Mailbox Command Queue */
6871         if (!phba->sli4_hba.mbx_wq) {
6872                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6873                                 "0538 Slow-path MQ not allocated\n");
6874                 rc = -ENOMEM;
6875                 goto out_destroy_fcp_cq;
6876         }
6877         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6878                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
6879         if (rc) {
6880                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6881                                 "0539 Failed setup of slow-path MQ: "
6882                                 "rc = 0x%x\n", rc);
6883                 goto out_destroy_fcp_cq;
6884         }
6885         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6886                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6887                         phba->sli4_hba.mbx_wq->queue_id,
6888                         phba->sli4_hba.mbx_cq->queue_id);
6889
6890         /* Set up slow-path ELS Work Queue */
6891         if (!phba->sli4_hba.els_wq) {
6892                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6893                                 "0536 Slow-path ELS WQ not allocated\n");
6894                 rc = -ENOMEM;
6895                 goto out_destroy_mbx_wq;
6896         }
6897         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6898                             phba->sli4_hba.els_cq, LPFC_ELS);
6899         if (rc) {
6900                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6901                                 "0537 Failed setup of slow-path ELS WQ: "
6902                                 "rc = 0x%x\n", rc);
6903                 goto out_destroy_mbx_wq;
6904         }
6905         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6906                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6907                         phba->sli4_hba.els_wq->queue_id,
6908                         phba->sli4_hba.els_cq->queue_id);
6909
6910         /* Set up fast-path FCP Work Queue */
6911         if (!phba->sli4_hba.fcp_wq) {
6912                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6913                                 "3149 Fast-path FCP WQ array not "
6914                                 "allocated\n");
6915                 rc = -ENOMEM;
6916                 goto out_destroy_els_wq;
6917         }
6918         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6919                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6920                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6921                                         "0534 Fast-path FCP WQ (%d) not "
6922                                         "allocated\n", fcp_wqidx);
6923                         rc = -ENOMEM;
6924                         goto out_destroy_fcp_wq;
6925                 }
6926                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6927                                     phba->sli4_hba.fcp_cq[fcp_cq_index],
6928                                     LPFC_FCP);
6929                 if (rc) {
6930                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6931                                         "0535 Failed setup of fast-path FCP "
6932                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6933                         goto out_destroy_fcp_wq;
6934                 }
6935                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6936                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
6937                                 "parent cq[%d]-id=%d\n",
6938                                 fcp_wqidx,
6939                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6940                                 fcp_cq_index,
6941                                 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6942                 /* Round robin FCP Work Queue's Completion Queue assignment */
6943                 if (phba->cfg_fcp_eq_count)
6944                         fcp_cq_index = ((fcp_cq_index + 1) %
6945                                         phba->cfg_fcp_eq_count);
6946         }
6947
6948         /*
6949          * Create Receive Queue (RQ)
6950          */
6951         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6952                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6953                                 "0540 Receive Queue not allocated\n");
6954                 rc = -ENOMEM;
6955                 goto out_destroy_fcp_wq;
6956         }
6957
6958         lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
6959         lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
6960
6961         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
6962                             phba->sli4_hba.els_cq, LPFC_USOL);
6963         if (rc) {
6964                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6965                                 "0541 Failed setup of Receive Queue: "
6966                                 "rc = 0x%x\n", rc);
6967                 goto out_destroy_fcp_wq;
6968         }
6969
6970         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6971                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6972                         "parent cq-id=%d\n",
6973                         phba->sli4_hba.hdr_rq->queue_id,
6974                         phba->sli4_hba.dat_rq->queue_id,
6975                         phba->sli4_hba.els_cq->queue_id);
6976         return 0;
6977
6978 out_destroy_fcp_wq:
6979         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6980                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6981 out_destroy_els_wq:
6982         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6983 out_destroy_mbx_wq:
6984         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6985 out_destroy_fcp_cq:
6986         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6987                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
6988 out_destroy_els_cq:
6989         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6990 out_destroy_mbx_cq:
6991         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6992 out_destroy_fp_eq:
6993         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6994                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6995 out_destroy_sp_eq:
6996         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6997 out_error:
6998         return rc;
6999 }
7000
7001 /**
7002  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7003  * @phba: pointer to lpfc hba data structure.
7004  *
7005  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7006  * operation.
7007  *
7008  * Return codes
7009  *      0 - successful
7010  *      -ENOMEM - No available memory
7011  *      -EIO - The mailbox failed to complete successfully.
7012  **/
7013 void
7014 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7015 {
7016         int fcp_qidx;
7017
7018         /* Unset mailbox command work queue */
7019         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7020         /* Unset ELS work queue */
7021         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7022         /* Unset unsolicited receive queue */
7023         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7024         /* Unset FCP work queue */
7025         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
7026                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7027         /* Unset mailbox command complete queue */
7028         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7029         /* Unset ELS complete queue */
7030         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7031         /* Unset FCP response complete queue */
7032         if (phba->sli4_hba.fcp_cq) {
7033                 fcp_qidx = 0;
7034                 do {
7035                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7036                 } while (++fcp_qidx < phba->cfg_fcp_eq_count);
7037         }
7038         /* Unset fast-path event queue */
7039         if (phba->sli4_hba.fp_eq) {
7040                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count;
7041                      fcp_qidx++)
7042                         lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
7043         }
7044         /* Unset slow-path event queue */
7045         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
7046 }
7047
7048 /**
7049  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7050  * @phba: pointer to lpfc hba data structure.
7051  *
7052  * This routine is invoked to allocate and set up a pool of completion queue
7053  * events. The body of the completion queue event is a completion queue entry
7054  * CQE. For now, this pool is used for the interrupt service routine to queue
7055  * the following HBA completion queue events for the worker thread to process:
7056  *   - Mailbox asynchronous events
7057  *   - Receive queue completion unsolicited events
7058  * Later, this can be used for all the slow-path events.
7059  *
7060  * Return codes
7061  *      0 - successful
7062  *      -ENOMEM - No available memory
7063  **/
7064 static int
7065 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7066 {
7067         struct lpfc_cq_event *cq_event;
7068         int i;
7069
7070         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7071                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7072                 if (!cq_event)
7073                         goto out_pool_create_fail;
7074                 list_add_tail(&cq_event->list,
7075                               &phba->sli4_hba.sp_cqe_event_pool);
7076         }
7077         return 0;
7078
7079 out_pool_create_fail:
7080         lpfc_sli4_cq_event_pool_destroy(phba);
7081         return -ENOMEM;
7082 }
7083
7084 /**
7085  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7086  * @phba: pointer to lpfc hba data structure.
7087  *
7088  * This routine is invoked to free the pool of completion queue events at
7089  * driver unload time. Note that, it is the responsibility of the driver
7090  * cleanup routine to free all the outstanding completion-queue events
7091  * allocated from this pool back into the pool before invoking this routine
7092  * to destroy the pool.
7093  **/
7094 static void
7095 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7096 {
7097         struct lpfc_cq_event *cq_event, *next_cq_event;
7098
7099         list_for_each_entry_safe(cq_event, next_cq_event,
7100                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
7101                 list_del(&cq_event->list);
7102                 kfree(cq_event);
7103         }
7104 }
7105
7106 /**
7107  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7108  * @phba: pointer to lpfc hba data structure.
7109  *
7110  * This routine is the lock free version of the API invoked to allocate a
7111  * completion-queue event from the free pool.
7112  *
7113  * Return: Pointer to the newly allocated completion-queue event if successful
7114  *         NULL otherwise.
7115  **/
7116 struct lpfc_cq_event *
7117 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7118 {
7119         struct lpfc_cq_event *cq_event = NULL;
7120
7121         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7122                          struct lpfc_cq_event, list);
7123         return cq_event;
7124 }
7125
7126 /**
7127  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7128  * @phba: pointer to lpfc hba data structure.
7129  *
7130  * This routine is the lock version of the API invoked to allocate a
7131  * completion-queue event from the free pool.
7132  *
7133  * Return: Pointer to the newly allocated completion-queue event if successful
7134  *         NULL otherwise.
7135  **/
7136 struct lpfc_cq_event *
7137 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7138 {
7139         struct lpfc_cq_event *cq_event;
7140         unsigned long iflags;
7141
7142         spin_lock_irqsave(&phba->hbalock, iflags);
7143         cq_event = __lpfc_sli4_cq_event_alloc(phba);
7144         spin_unlock_irqrestore(&phba->hbalock, iflags);
7145         return cq_event;
7146 }
7147
7148 /**
7149  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7150  * @phba: pointer to lpfc hba data structure.
7151  * @cq_event: pointer to the completion queue event to be freed.
7152  *
7153  * This routine is the lock free version of the API invoked to release a
7154  * completion-queue event back into the free pool.
7155  **/
7156 void
7157 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7158                              struct lpfc_cq_event *cq_event)
7159 {
7160         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7161 }
7162
7163 /**
7164  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7165  * @phba: pointer to lpfc hba data structure.
7166  * @cq_event: pointer to the completion queue event to be freed.
7167  *
7168  * This routine is the lock version of the API invoked to release a
7169  * completion-queue event back into the free pool.
7170  **/
7171 void
7172 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7173                            struct lpfc_cq_event *cq_event)
7174 {
7175         unsigned long iflags;
7176         spin_lock_irqsave(&phba->hbalock, iflags);
7177         __lpfc_sli4_cq_event_release(phba, cq_event);
7178         spin_unlock_irqrestore(&phba->hbalock, iflags);
7179 }
7180
7181 /**
7182  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7183  * @phba: pointer to lpfc hba data structure.
7184  *
7185  * This routine is to free all the pending completion-queue events to the
7186  * back into the free pool for device reset.
7187  **/
7188 static void
7189 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7190 {
7191         LIST_HEAD(cqelist);
7192         struct lpfc_cq_event *cqe;
7193         unsigned long iflags;
7194
7195         /* Retrieve all the pending WCQEs from pending WCQE lists */
7196         spin_lock_irqsave(&phba->hbalock, iflags);
7197         /* Pending FCP XRI abort events */
7198         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7199                          &cqelist);
7200         /* Pending ELS XRI abort events */
7201         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7202                          &cqelist);
7203         /* Pending asynnc events */
7204         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7205                          &cqelist);
7206         spin_unlock_irqrestore(&phba->hbalock, iflags);
7207
7208         while (!list_empty(&cqelist)) {
7209                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7210                 lpfc_sli4_cq_event_release(phba, cqe);
7211         }
7212 }
7213
7214 /**
7215  * lpfc_pci_function_reset - Reset pci function.
7216  * @phba: pointer to lpfc hba data structure.
7217  *
7218  * This routine is invoked to request a PCI function reset. It will destroys
7219  * all resources assigned to the PCI function which originates this request.
7220  *
7221  * Return codes
7222  *      0 - successful
7223  *      -ENOMEM - No available memory
7224  *      -EIO - The mailbox failed to complete successfully.
7225  **/
7226 int
7227 lpfc_pci_function_reset(struct lpfc_hba *phba)
7228 {
7229         LPFC_MBOXQ_t *mboxq;
7230         uint32_t rc = 0, if_type;
7231         uint32_t shdr_status, shdr_add_status;
7232         uint32_t rdy_chk, num_resets = 0, reset_again = 0;
7233         union lpfc_sli4_cfg_shdr *shdr;
7234         struct lpfc_register reg_data;
7235         uint16_t devid;
7236
7237         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7238         switch (if_type) {
7239         case LPFC_SLI_INTF_IF_TYPE_0:
7240                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7241                                                        GFP_KERNEL);
7242                 if (!mboxq) {
7243                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7244                                         "0494 Unable to allocate memory for "
7245                                         "issuing SLI_FUNCTION_RESET mailbox "
7246                                         "command\n");
7247                         return -ENOMEM;
7248                 }
7249
7250                 /* Setup PCI function reset mailbox-ioctl command */
7251                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7252                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7253                                  LPFC_SLI4_MBX_EMBED);
7254                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7255                 shdr = (union lpfc_sli4_cfg_shdr *)
7256                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7257                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7258                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7259                                          &shdr->response);
7260                 if (rc != MBX_TIMEOUT)
7261                         mempool_free(mboxq, phba->mbox_mem_pool);
7262                 if (shdr_status || shdr_add_status || rc) {
7263                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7264                                         "0495 SLI_FUNCTION_RESET mailbox "
7265                                         "failed with status x%x add_status x%x,"
7266                                         " mbx status x%x\n",
7267                                         shdr_status, shdr_add_status, rc);
7268                         rc = -ENXIO;
7269                 }
7270                 break;
7271         case LPFC_SLI_INTF_IF_TYPE_2:
7272                 for (num_resets = 0;
7273                      num_resets < MAX_IF_TYPE_2_RESETS;
7274                      num_resets++) {
7275                         reg_data.word0 = 0;
7276                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
7277                                LPFC_SLIPORT_LITTLE_ENDIAN);
7278                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
7279                                LPFC_SLIPORT_INIT_PORT);
7280                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7281                                CTRLregaddr);
7282                         /* flush */
7283                         pci_read_config_word(phba->pcidev,
7284                                              PCI_DEVICE_ID, &devid);
7285                         /*
7286                          * Poll the Port Status Register and wait for RDY for
7287                          * up to 10 seconds.  If the port doesn't respond, treat
7288                          * it as an error.  If the port responds with RN, start
7289                          * the loop again.
7290                          */
7291                         for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
7292                                 msleep(10);
7293                                 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7294                                               STATUSregaddr, &reg_data.word0)) {
7295                                         rc = -ENODEV;
7296                                         goto out;
7297                                 }
7298                                 if (bf_get(lpfc_sliport_status_rn, &reg_data))
7299                                         reset_again++;
7300                                 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
7301                                         break;
7302                         }
7303
7304                         /*
7305                          * If the port responds to the init request with
7306                          * reset needed, delay for a bit and restart the loop.
7307                          */
7308                         if (reset_again && (rdy_chk < 1000)) {
7309                                 msleep(10);
7310                                 reset_again = 0;
7311                                 continue;
7312                         }
7313
7314                         /* Detect any port errors. */
7315                         if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7316                             (rdy_chk >= 1000)) {
7317                                 phba->work_status[0] = readl(
7318                                         phba->sli4_hba.u.if_type2.ERR1regaddr);
7319                                 phba->work_status[1] = readl(
7320                                         phba->sli4_hba.u.if_type2.ERR2regaddr);
7321                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7322                                         "2890 Port error detected during port "
7323                                         "reset(%d): port status reg 0x%x, "
7324                                         "error 1=0x%x, error 2=0x%x\n",
7325                                         num_resets, reg_data.word0,
7326                                         phba->work_status[0],
7327                                         phba->work_status[1]);
7328                                 rc = -ENODEV;
7329                         }
7330
7331                         /*
7332                          * Terminate the outer loop provided the Port indicated
7333                          * ready within 10 seconds.
7334                          */
7335                         if (rdy_chk < 1000)
7336                                 break;
7337                 }
7338                 /* delay driver action following IF_TYPE_2 function reset */
7339                 msleep(100);
7340                 break;
7341         case LPFC_SLI_INTF_IF_TYPE_1:
7342         default:
7343                 break;
7344         }
7345
7346 out:
7347         /* Catch the not-ready port failure after a port reset. */
7348         if (num_resets >= MAX_IF_TYPE_2_RESETS)
7349                 rc = -ENODEV;
7350
7351         return rc;
7352 }
7353
7354 /**
7355  * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
7356  * @phba: pointer to lpfc hba data structure.
7357  * @cnt: number of nop mailbox commands to send.
7358  *
7359  * This routine is invoked to send a number @cnt of NOP mailbox command and
7360  * wait for each command to complete.
7361  *
7362  * Return: the number of NOP mailbox command completed.
7363  **/
7364 static int
7365 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
7366 {
7367         LPFC_MBOXQ_t *mboxq;
7368         int length, cmdsent;
7369         uint32_t mbox_tmo;
7370         uint32_t rc = 0;
7371         uint32_t shdr_status, shdr_add_status;
7372         union lpfc_sli4_cfg_shdr *shdr;
7373
7374         if (cnt == 0) {
7375                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7376                                 "2518 Requested to send 0 NOP mailbox cmd\n");
7377                 return cnt;
7378         }
7379
7380         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7381         if (!mboxq) {
7382                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7383                                 "2519 Unable to allocate memory for issuing "
7384                                 "NOP mailbox command\n");
7385                 return 0;
7386         }
7387
7388         /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
7389         length = (sizeof(struct lpfc_mbx_nop) -
7390                   sizeof(struct lpfc_sli4_cfg_mhdr));
7391         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7392                          LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
7393
7394         for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
7395                 if (!phba->sli4_hba.intr_enable)
7396                         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7397                 else {
7398                         mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
7399                         rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7400                 }
7401                 if (rc == MBX_TIMEOUT)
7402                         break;
7403                 /* Check return status */
7404                 shdr = (union lpfc_sli4_cfg_shdr *)
7405                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7406                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7407                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7408                                          &shdr->response);
7409                 if (shdr_status || shdr_add_status || rc) {
7410                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7411                                         "2520 NOP mailbox command failed "
7412                                         "status x%x add_status x%x mbx "
7413                                         "status x%x\n", shdr_status,
7414                                         shdr_add_status, rc);
7415                         break;
7416                 }
7417         }
7418
7419         if (rc != MBX_TIMEOUT)
7420                 mempool_free(mboxq, phba->mbox_mem_pool);
7421
7422         return cmdsent;
7423 }
7424
7425 /**
7426  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7427  * @phba: pointer to lpfc hba data structure.
7428  *
7429  * This routine is invoked to set up the PCI device memory space for device
7430  * with SLI-4 interface spec.
7431  *
7432  * Return codes
7433  *      0 - successful
7434  *      other values - error
7435  **/
7436 static int
7437 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7438 {
7439         struct pci_dev *pdev;
7440         unsigned long bar0map_len, bar1map_len, bar2map_len;
7441         int error = -ENODEV;
7442         uint32_t if_type;
7443
7444         /* Obtain PCI device reference */
7445         if (!phba->pcidev)
7446                 return error;
7447         else
7448                 pdev = phba->pcidev;
7449
7450         /* Set the device DMA mask size */
7451         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7452          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7453                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7454                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7455                         return error;
7456                 }
7457         }
7458
7459         /*
7460          * The BARs and register set definitions and offset locations are
7461          * dependent on the if_type.
7462          */
7463         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7464                                   &phba->sli4_hba.sli_intf.word0)) {
7465                 return error;
7466         }
7467
7468         /* There is no SLI3 failback for SLI4 devices. */
7469         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7470             LPFC_SLI_INTF_VALID) {
7471                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7472                                 "2894 SLI_INTF reg contents invalid "
7473                                 "sli_intf reg 0x%x\n",
7474                                 phba->sli4_hba.sli_intf.word0);
7475                 return error;
7476         }
7477
7478         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7479         /*
7480          * Get the bus address of SLI4 device Bar regions and the
7481          * number of bytes required by each mapping. The mapping of the
7482          * particular PCI BARs regions is dependent on the type of
7483          * SLI4 device.
7484          */
7485         if (pci_resource_start(pdev, 0)) {
7486                 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7487                 bar0map_len = pci_resource_len(pdev, 0);
7488
7489                 /*
7490                  * Map SLI4 PCI Config Space Register base to a kernel virtual
7491                  * addr
7492                  */
7493                 phba->sli4_hba.conf_regs_memmap_p =
7494                         ioremap(phba->pci_bar0_map, bar0map_len);
7495                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7496                         dev_printk(KERN_ERR, &pdev->dev,
7497                                    "ioremap failed for SLI4 PCI config "
7498                                    "registers.\n");
7499                         goto out;
7500                 }
7501                 /* Set up BAR0 PCI config space register memory map */
7502                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7503         } else {
7504                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7505                 bar0map_len = pci_resource_len(pdev, 1);
7506                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7507                         dev_printk(KERN_ERR, &pdev->dev,
7508                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7509                         goto out;
7510                 }
7511                 phba->sli4_hba.conf_regs_memmap_p =
7512                                 ioremap(phba->pci_bar0_map, bar0map_len);
7513                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7514                         dev_printk(KERN_ERR, &pdev->dev,
7515                                 "ioremap failed for SLI4 PCI config "
7516                                 "registers.\n");
7517                                 goto out;
7518                 }
7519                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7520         }
7521
7522         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7523             (pci_resource_start(pdev, 2))) {
7524                 /*
7525                  * Map SLI4 if type 0 HBA Control Register base to a kernel
7526                  * virtual address and setup the registers.
7527                  */
7528                 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7529                 bar1map_len = pci_resource_len(pdev, 2);
7530                 phba->sli4_hba.ctrl_regs_memmap_p =
7531                                 ioremap(phba->pci_bar1_map, bar1map_len);
7532                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7533                         dev_printk(KERN_ERR, &pdev->dev,
7534                            "ioremap failed for SLI4 HBA control registers.\n");
7535                         goto out_iounmap_conf;
7536                 }
7537                 lpfc_sli4_bar1_register_memmap(phba);
7538         }
7539
7540         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7541             (pci_resource_start(pdev, 4))) {
7542                 /*
7543                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7544                  * virtual address and setup the registers.
7545                  */
7546                 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7547                 bar2map_len = pci_resource_len(pdev, 4);
7548                 phba->sli4_hba.drbl_regs_memmap_p =
7549                                 ioremap(phba->pci_bar2_map, bar2map_len);
7550                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7551                         dev_printk(KERN_ERR, &pdev->dev,
7552                            "ioremap failed for SLI4 HBA doorbell registers.\n");
7553                         goto out_iounmap_ctrl;
7554                 }
7555                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7556                 if (error)
7557                         goto out_iounmap_all;
7558         }
7559
7560         return 0;
7561
7562 out_iounmap_all:
7563         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7564 out_iounmap_ctrl:
7565         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7566 out_iounmap_conf:
7567         iounmap(phba->sli4_hba.conf_regs_memmap_p);
7568 out:
7569         return error;
7570 }
7571
7572 /**
7573  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7574  * @phba: pointer to lpfc hba data structure.
7575  *
7576  * This routine is invoked to unset the PCI device memory space for device
7577  * with SLI-4 interface spec.
7578  **/
7579 static void
7580 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7581 {
7582         uint32_t if_type;
7583         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7584
7585         switch (if_type) {
7586         case LPFC_SLI_INTF_IF_TYPE_0:
7587                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7588                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7589                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7590                 break;
7591         case LPFC_SLI_INTF_IF_TYPE_2:
7592                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7593                 break;
7594         case LPFC_SLI_INTF_IF_TYPE_1:
7595         default:
7596                 dev_printk(KERN_ERR, &phba->pcidev->dev,
7597                            "FATAL - unsupported SLI4 interface type - %d\n",
7598                            if_type);
7599                 break;
7600         }
7601 }
7602
7603 /**
7604  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7605  * @phba: pointer to lpfc hba data structure.
7606  *
7607  * This routine is invoked to enable the MSI-X interrupt vectors to device
7608  * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7609  * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7610  * invoked, enables either all or nothing, depending on the current
7611  * availability of PCI vector resources. The device driver is responsible
7612  * for calling the individual request_irq() to register each MSI-X vector
7613  * with a interrupt handler, which is done in this function. Note that
7614  * later when device is unloading, the driver should always call free_irq()
7615  * on all MSI-X vectors it has done request_irq() on before calling
7616  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7617  * will be left with MSI-X enabled and leaks its vectors.
7618  *
7619  * Return codes
7620  *   0 - successful
7621  *   other values - error
7622  **/
7623 static int
7624 lpfc_sli_enable_msix(struct lpfc_hba *phba)
7625 {
7626         int rc, i;
7627         LPFC_MBOXQ_t *pmb;
7628
7629         /* Set up MSI-X multi-message vectors */
7630         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7631                 phba->msix_entries[i].entry = i;
7632
7633         /* Configure MSI-X capability structure */
7634         rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7635                                 ARRAY_SIZE(phba->msix_entries));
7636         if (rc) {
7637                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7638                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
7639                 goto msi_fail_out;
7640         }
7641         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7642                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7643                                 "0477 MSI-X entry[%d]: vector=x%x "
7644                                 "message=%d\n", i,
7645                                 phba->msix_entries[i].vector,
7646                                 phba->msix_entries[i].entry);
7647         /*
7648          * Assign MSI-X vectors to interrupt handlers
7649          */
7650
7651         /* vector-0 is associated to slow-path handler */
7652         rc = request_irq(phba->msix_entries[0].vector,
7653                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7654                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
7655         if (rc) {
7656                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7657                                 "0421 MSI-X slow-path request_irq failed "
7658                                 "(%d)\n", rc);
7659                 goto msi_fail_out;
7660         }
7661
7662         /* vector-1 is associated to fast-path handler */
7663         rc = request_irq(phba->msix_entries[1].vector,
7664                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7665                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
7666
7667         if (rc) {
7668                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7669                                 "0429 MSI-X fast-path request_irq failed "
7670                                 "(%d)\n", rc);
7671                 goto irq_fail_out;
7672         }
7673
7674         /*
7675          * Configure HBA MSI-X attention conditions to messages
7676          */
7677         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7678
7679         if (!pmb) {
7680                 rc = -ENOMEM;
7681                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7682                                 "0474 Unable to allocate memory for issuing "
7683                                 "MBOX_CONFIG_MSI command\n");
7684                 goto mem_fail_out;
7685         }
7686         rc = lpfc_config_msi(phba, pmb);
7687         if (rc)
7688                 goto mbx_fail_out;
7689         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7690         if (rc != MBX_SUCCESS) {
7691                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
7692                                 "0351 Config MSI mailbox command failed, "
7693                                 "mbxCmd x%x, mbxStatus x%x\n",
7694                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
7695                 goto mbx_fail_out;
7696         }
7697
7698         /* Free memory allocated for mailbox command */
7699         mempool_free(pmb, phba->mbox_mem_pool);
7700         return rc;
7701
7702 mbx_fail_out:
7703         /* Free memory allocated for mailbox command */
7704         mempool_free(pmb, phba->mbox_mem_pool);
7705
7706 mem_fail_out:
7707         /* free the irq already requested */
7708         free_irq(phba->msix_entries[1].vector, phba);
7709
7710 irq_fail_out:
7711         /* free the irq already requested */
7712         free_irq(phba->msix_entries[0].vector, phba);
7713
7714 msi_fail_out:
7715         /* Unconfigure MSI-X capability structure */
7716         pci_disable_msix(phba->pcidev);
7717         return rc;
7718 }
7719
7720 /**
7721  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7722  * @phba: pointer to lpfc hba data structure.
7723  *
7724  * This routine is invoked to release the MSI-X vectors and then disable the
7725  * MSI-X interrupt mode to device with SLI-3 interface spec.
7726  **/
7727 static void
7728 lpfc_sli_disable_msix(struct lpfc_hba *phba)
7729 {
7730         int i;
7731
7732         /* Free up MSI-X multi-message vectors */
7733         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7734                 free_irq(phba->msix_entries[i].vector, phba);
7735         /* Disable MSI-X */
7736         pci_disable_msix(phba->pcidev);
7737
7738         return;
7739 }
7740
7741 /**
7742  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7743  * @phba: pointer to lpfc hba data structure.
7744  *
7745  * This routine is invoked to enable the MSI interrupt mode to device with
7746  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7747  * enable the MSI vector. The device driver is responsible for calling the
7748  * request_irq() to register MSI vector with a interrupt the handler, which
7749  * is done in this function.
7750  *
7751  * Return codes
7752  *      0 - successful
7753  *      other values - error
7754  */
7755 static int
7756 lpfc_sli_enable_msi(struct lpfc_hba *phba)
7757 {
7758         int rc;
7759
7760         rc = pci_enable_msi(phba->pcidev);
7761         if (!rc)
7762                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7763                                 "0462 PCI enable MSI mode success.\n");
7764         else {
7765                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7766                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
7767                 return rc;
7768         }
7769
7770         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7771                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7772         if (rc) {
7773                 pci_disable_msi(phba->pcidev);
7774                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7775                                 "0478 MSI request_irq failed (%d)\n", rc);
7776         }
7777         return rc;
7778 }
7779
7780 /**
7781  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7782  * @phba: pointer to lpfc hba data structure.
7783  *
7784  * This routine is invoked to disable the MSI interrupt mode to device with
7785  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7786  * done request_irq() on before calling pci_disable_msi(). Failure to do so
7787  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7788  * its vector.
7789  */
7790 static void
7791 lpfc_sli_disable_msi(struct lpfc_hba *phba)
7792 {
7793         free_irq(phba->pcidev->irq, phba);
7794         pci_disable_msi(phba->pcidev);
7795         return;
7796 }
7797
7798 /**
7799  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
7800  * @phba: pointer to lpfc hba data structure.
7801  *
7802  * This routine is invoked to enable device interrupt and associate driver's
7803  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
7804  * spec. Depends on the interrupt mode configured to the driver, the driver
7805  * will try to fallback from the configured interrupt mode to an interrupt
7806  * mode which is supported by the platform, kernel, and device in the order
7807  * of:
7808  * MSI-X -> MSI -> IRQ.
7809  *
7810  * Return codes
7811  *   0 - successful
7812  *   other values - error
7813  **/
7814 static uint32_t
7815 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7816 {
7817         uint32_t intr_mode = LPFC_INTR_ERROR;
7818         int retval;
7819
7820         if (cfg_mode == 2) {
7821                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
7822                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
7823                 if (!retval) {
7824                         /* Now, try to enable MSI-X interrupt mode */
7825                         retval = lpfc_sli_enable_msix(phba);
7826                         if (!retval) {
7827                                 /* Indicate initialization to MSI-X mode */
7828                                 phba->intr_type = MSIX;
7829                                 intr_mode = 2;
7830                         }
7831                 }
7832         }
7833
7834         /* Fallback to MSI if MSI-X initialization failed */
7835         if (cfg_mode >= 1 && phba->intr_type == NONE) {
7836                 retval = lpfc_sli_enable_msi(phba);
7837                 if (!retval) {
7838                         /* Indicate initialization to MSI mode */
7839                         phba->intr_type = MSI;
7840                         intr_mode = 1;
7841                 }
7842         }
7843
7844         /* Fallback to INTx if both MSI-X/MSI initalization failed */
7845         if (phba->intr_type == NONE) {
7846                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7847                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7848                 if (!retval) {
7849                         /* Indicate initialization to INTx mode */
7850                         phba->intr_type = INTx;
7851                         intr_mode = 0;
7852                 }
7853         }
7854         return intr_mode;
7855 }
7856
7857 /**
7858  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
7859  * @phba: pointer to lpfc hba data structure.
7860  *
7861  * This routine is invoked to disable device interrupt and disassociate the
7862  * driver's interrupt handler(s) from interrupt vector(s) to device with
7863  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
7864  * release the interrupt vector(s) for the message signaled interrupt.
7865  **/
7866 static void
7867 lpfc_sli_disable_intr(struct lpfc_hba *phba)
7868 {
7869         /* Disable the currently initialized interrupt mode */
7870         if (phba->intr_type == MSIX)
7871                 lpfc_sli_disable_msix(phba);
7872         else if (phba->intr_type == MSI)
7873                 lpfc_sli_disable_msi(phba);
7874         else if (phba->intr_type == INTx)
7875                 free_irq(phba->pcidev->irq, phba);
7876
7877         /* Reset interrupt management states */
7878         phba->intr_type = NONE;
7879         phba->sli.slistat.sli_intr = 0;
7880
7881         return;
7882 }
7883
7884 /**
7885  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
7886  * @phba: pointer to lpfc hba data structure.
7887  *
7888  * This routine is invoked to enable the MSI-X interrupt vectors to device
7889  * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
7890  * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
7891  * enables either all or nothing, depending on the current availability of
7892  * PCI vector resources. The device driver is responsible for calling the
7893  * individual request_irq() to register each MSI-X vector with a interrupt
7894  * handler, which is done in this function. Note that later when device is
7895  * unloading, the driver should always call free_irq() on all MSI-X vectors
7896  * it has done request_irq() on before calling pci_disable_msix(). Failure
7897  * to do so results in a BUG_ON() and a device will be left with MSI-X
7898  * enabled and leaks its vectors.
7899  *
7900  * Return codes
7901  * 0 - successful
7902  * other values - error
7903  **/
7904 static int
7905 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
7906 {
7907         int vectors, rc, index;
7908
7909         /* Set up MSI-X multi-message vectors */
7910         for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
7911                 phba->sli4_hba.msix_entries[index].entry = index;
7912
7913         /* Configure MSI-X capability structure */
7914         vectors = phba->sli4_hba.cfg_eqn;
7915 enable_msix_vectors:
7916         rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
7917                              vectors);
7918         if (rc > 1) {
7919                 vectors = rc;
7920                 goto enable_msix_vectors;
7921         } else if (rc) {
7922                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7923                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
7924                 goto msi_fail_out;
7925         }
7926
7927         /* Log MSI-X vector assignment */
7928         for (index = 0; index < vectors; index++)
7929                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7930                                 "0489 MSI-X entry[%d]: vector=x%x "
7931                                 "message=%d\n", index,
7932                                 phba->sli4_hba.msix_entries[index].vector,
7933                                 phba->sli4_hba.msix_entries[index].entry);
7934         /*
7935          * Assign MSI-X vectors to interrupt handlers
7936          */
7937         if (vectors > 1)
7938                 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7939                                  &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
7940                                  LPFC_SP_DRIVER_HANDLER_NAME, phba);
7941         else
7942                 /* All Interrupts need to be handled by one EQ */
7943                 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7944                                  &lpfc_sli4_intr_handler, IRQF_SHARED,
7945                                  LPFC_DRIVER_NAME, phba);
7946         if (rc) {
7947                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7948                                 "0485 MSI-X slow-path request_irq failed "
7949                                 "(%d)\n", rc);
7950                 goto msi_fail_out;
7951         }
7952
7953         /* The rest of the vector(s) are associated to fast-path handler(s) */
7954         for (index = 1; index < vectors; index++) {
7955                 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
7956                 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7957                 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7958                                  &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7959                                  LPFC_FP_DRIVER_HANDLER_NAME,
7960                                  &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7961                 if (rc) {
7962                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7963                                         "0486 MSI-X fast-path (%d) "
7964                                         "request_irq failed (%d)\n", index, rc);
7965                         goto cfg_fail_out;
7966                 }
7967         }
7968         phba->sli4_hba.msix_vec_nr = vectors;
7969
7970         return rc;
7971
7972 cfg_fail_out:
7973         /* free the irq already requested */
7974         for (--index; index >= 1; index--)
7975                 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7976                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7977
7978         /* free the irq already requested */
7979         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7980
7981 msi_fail_out:
7982         /* Unconfigure MSI-X capability structure */
7983         pci_disable_msix(phba->pcidev);
7984         return rc;
7985 }
7986
7987 /**
7988  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7989  * @phba: pointer to lpfc hba data structure.
7990  *
7991  * This routine is invoked to release the MSI-X vectors and then disable the
7992  * MSI-X interrupt mode to device with SLI-4 interface spec.
7993  **/
7994 static void
7995 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7996 {
7997         int index;
7998
7999         /* Free up MSI-X multi-message vectors */
8000         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
8001
8002         for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
8003                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8004                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
8005
8006         /* Disable MSI-X */
8007         pci_disable_msix(phba->pcidev);
8008
8009         return;
8010 }
8011
8012 /**
8013  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
8014  * @phba: pointer to lpfc hba data structure.
8015  *
8016  * This routine is invoked to enable the MSI interrupt mode to device with
8017  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
8018  * to enable the MSI vector. The device driver is responsible for calling
8019  * the request_irq() to register MSI vector with a interrupt the handler,
8020  * which is done in this function.
8021  *
8022  * Return codes
8023  *      0 - successful
8024  *      other values - error
8025  **/
8026 static int
8027 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
8028 {
8029         int rc, index;
8030
8031         rc = pci_enable_msi(phba->pcidev);
8032         if (!rc)
8033                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8034                                 "0487 PCI enable MSI mode success.\n");
8035         else {
8036                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8037                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
8038                 return rc;
8039         }
8040
8041         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8042                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8043         if (rc) {
8044                 pci_disable_msi(phba->pcidev);
8045                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8046                                 "0490 MSI request_irq failed (%d)\n", rc);
8047                 return rc;
8048         }
8049
8050         for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
8051                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8052                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8053         }
8054
8055         return 0;
8056 }
8057
8058 /**
8059  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
8060  * @phba: pointer to lpfc hba data structure.
8061  *
8062  * This routine is invoked to disable the MSI interrupt mode to device with
8063  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
8064  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8065  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8066  * its vector.
8067  **/
8068 static void
8069 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
8070 {
8071         free_irq(phba->pcidev->irq, phba);
8072         pci_disable_msi(phba->pcidev);
8073         return;
8074 }
8075
8076 /**
8077  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
8078  * @phba: pointer to lpfc hba data structure.
8079  *
8080  * This routine is invoked to enable device interrupt and associate driver's
8081  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
8082  * interface spec. Depends on the interrupt mode configured to the driver,
8083  * the driver will try to fallback from the configured interrupt mode to an
8084  * interrupt mode which is supported by the platform, kernel, and device in
8085  * the order of:
8086  * MSI-X -> MSI -> IRQ.
8087  *
8088  * Return codes
8089  *      0 - successful
8090  *      other values - error
8091  **/
8092 static uint32_t
8093 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8094 {
8095         uint32_t intr_mode = LPFC_INTR_ERROR;
8096         int retval, index;
8097
8098         if (cfg_mode == 2) {
8099                 /* Preparation before conf_msi mbox cmd */
8100                 retval = 0;
8101                 if (!retval) {
8102                         /* Now, try to enable MSI-X interrupt mode */
8103                         retval = lpfc_sli4_enable_msix(phba);
8104                         if (!retval) {
8105                                 /* Indicate initialization to MSI-X mode */
8106                                 phba->intr_type = MSIX;
8107                                 intr_mode = 2;
8108                         }
8109                 }
8110         }
8111
8112         /* Fallback to MSI if MSI-X initialization failed */
8113         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8114                 retval = lpfc_sli4_enable_msi(phba);
8115                 if (!retval) {
8116                         /* Indicate initialization to MSI mode */
8117                         phba->intr_type = MSI;
8118                         intr_mode = 1;
8119                 }
8120         }
8121
8122         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8123         if (phba->intr_type == NONE) {
8124                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8125                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8126                 if (!retval) {
8127                         /* Indicate initialization to INTx mode */
8128                         phba->intr_type = INTx;
8129                         intr_mode = 0;
8130                         for (index = 0; index < phba->cfg_fcp_eq_count;
8131                              index++) {
8132                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8133                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8134                         }
8135                 }
8136         }
8137         return intr_mode;
8138 }
8139
8140 /**
8141  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
8142  * @phba: pointer to lpfc hba data structure.
8143  *
8144  * This routine is invoked to disable device interrupt and disassociate
8145  * the driver's interrupt handler(s) from interrupt vector(s) to device
8146  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
8147  * will release the interrupt vector(s) for the message signaled interrupt.
8148  **/
8149 static void
8150 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
8151 {
8152         /* Disable the currently initialized interrupt mode */
8153         if (phba->intr_type == MSIX)
8154                 lpfc_sli4_disable_msix(phba);
8155         else if (phba->intr_type == MSI)
8156                 lpfc_sli4_disable_msi(phba);
8157         else if (phba->intr_type == INTx)
8158                 free_irq(phba->pcidev->irq, phba);
8159
8160         /* Reset interrupt management states */
8161         phba->intr_type = NONE;
8162         phba->sli.slistat.sli_intr = 0;
8163
8164         return;
8165 }
8166
8167 /**
8168  * lpfc_unset_hba - Unset SLI3 hba device initialization
8169  * @phba: pointer to lpfc hba data structure.
8170  *
8171  * This routine is invoked to unset the HBA device initialization steps to
8172  * a device with SLI-3 interface spec.
8173  **/
8174 static void
8175 lpfc_unset_hba(struct lpfc_hba *phba)
8176 {
8177         struct lpfc_vport *vport = phba->pport;
8178         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
8179
8180         spin_lock_irq(shost->host_lock);
8181         vport->load_flag |= FC_UNLOADING;
8182         spin_unlock_irq(shost->host_lock);
8183
8184         kfree(phba->vpi_bmask);
8185         kfree(phba->vpi_ids);
8186
8187         lpfc_stop_hba_timers(phba);
8188
8189         phba->pport->work_port_events = 0;
8190
8191         lpfc_sli_hba_down(phba);
8192
8193         lpfc_sli_brdrestart(phba);
8194
8195         lpfc_sli_disable_intr(phba);
8196
8197         return;
8198 }
8199
8200 /**
8201  * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
8202  * @phba: pointer to lpfc hba data structure.
8203  *
8204  * This routine is invoked to unset the HBA device initialization steps to
8205  * a device with SLI-4 interface spec.
8206  **/
8207 static void
8208 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
8209 {
8210         struct lpfc_vport *vport = phba->pport;
8211         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
8212
8213         spin_lock_irq(shost->host_lock);
8214         vport->load_flag |= FC_UNLOADING;
8215         spin_unlock_irq(shost->host_lock);
8216
8217         phba->pport->work_port_events = 0;
8218
8219         /* Stop the SLI4 device port */
8220         lpfc_stop_port(phba);
8221
8222         lpfc_sli4_disable_intr(phba);
8223
8224         /* Reset SLI4 HBA FCoE function */
8225         lpfc_pci_function_reset(phba);
8226         lpfc_sli4_queue_destroy(phba);
8227
8228         return;
8229 }
8230
8231 /**
8232  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
8233  * @phba: Pointer to HBA context object.
8234  *
8235  * This function is called in the SLI4 code path to wait for completion
8236  * of device's XRIs exchange busy. It will check the XRI exchange busy
8237  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
8238  * that, it will check the XRI exchange busy on outstanding FCP and ELS
8239  * I/Os every 30 seconds, log error message, and wait forever. Only when
8240  * all XRI exchange busy complete, the driver unload shall proceed with
8241  * invoking the function reset ioctl mailbox command to the CNA and the
8242  * the rest of the driver unload resource release.
8243  **/
8244 static void
8245 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
8246 {
8247         int wait_time = 0;
8248         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8249         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8250
8251         while (!fcp_xri_cmpl || !els_xri_cmpl) {
8252                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
8253                         if (!fcp_xri_cmpl)
8254                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8255                                                 "2877 FCP XRI exchange busy "
8256                                                 "wait time: %d seconds.\n",
8257                                                 wait_time/1000);
8258                         if (!els_xri_cmpl)
8259                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8260                                                 "2878 ELS XRI exchange busy "
8261                                                 "wait time: %d seconds.\n",
8262                                                 wait_time/1000);
8263                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
8264                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
8265                 } else {
8266                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
8267                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
8268                 }
8269                 fcp_xri_cmpl =
8270                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8271                 els_xri_cmpl =
8272                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8273         }
8274 }
8275
8276 /**
8277  * lpfc_sli4_hba_unset - Unset the fcoe hba
8278  * @phba: Pointer to HBA context object.
8279  *
8280  * This function is called in the SLI4 code path to reset the HBA's FCoE
8281  * function. The caller is not required to hold any lock. This routine
8282  * issues PCI function reset mailbox command to reset the FCoE function.
8283  * At the end of the function, it calls lpfc_hba_down_post function to
8284  * free any pending commands.
8285  **/
8286 static void
8287 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8288 {
8289         int wait_cnt = 0;
8290         LPFC_MBOXQ_t *mboxq;
8291         struct pci_dev *pdev = phba->pcidev;
8292
8293         lpfc_stop_hba_timers(phba);
8294         phba->sli4_hba.intr_enable = 0;
8295
8296         /*
8297          * Gracefully wait out the potential current outstanding asynchronous
8298          * mailbox command.
8299          */
8300
8301         /* First, block any pending async mailbox command from posted */
8302         spin_lock_irq(&phba->hbalock);
8303         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8304         spin_unlock_irq(&phba->hbalock);
8305         /* Now, trying to wait it out if we can */
8306         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8307                 msleep(10);
8308                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
8309                         break;
8310         }
8311         /* Forcefully release the outstanding mailbox command if timed out */
8312         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8313                 spin_lock_irq(&phba->hbalock);
8314                 mboxq = phba->sli.mbox_active;
8315                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8316                 __lpfc_mbox_cmpl_put(phba, mboxq);
8317                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8318                 phba->sli.mbox_active = NULL;
8319                 spin_unlock_irq(&phba->hbalock);
8320         }
8321
8322         /* Abort all iocbs associated with the hba */
8323         lpfc_sli_hba_iocb_abort(phba);
8324
8325         /* Wait for completion of device XRI exchange busy */
8326         lpfc_sli4_xri_exchange_busy_wait(phba);
8327
8328         /* Disable PCI subsystem interrupt */
8329         lpfc_sli4_disable_intr(phba);
8330
8331         /* Disable SR-IOV if enabled */
8332         if (phba->cfg_sriov_nr_virtfn)
8333                 pci_disable_sriov(pdev);
8334
8335         /* Stop kthread signal shall trigger work_done one more time */
8336         kthread_stop(phba->worker_thread);
8337
8338         /* Reset SLI4 HBA FCoE function */
8339         lpfc_pci_function_reset(phba);
8340         lpfc_sli4_queue_destroy(phba);
8341
8342         /* Stop the SLI4 device port */
8343         phba->pport->work_port_events = 0;
8344 }
8345
8346  /**
8347  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
8348  * @phba: Pointer to HBA context object.
8349  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8350  *
8351  * This function is called in the SLI4 code path to read the port's
8352  * sli4 capabilities.
8353  *
8354  * This function may be be called from any context that can block-wait
8355  * for the completion.  The expectation is that this routine is called
8356  * typically from probe_one or from the online routine.
8357  **/
8358 int
8359 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8360 {
8361         int rc;
8362         struct lpfc_mqe *mqe;
8363         struct lpfc_pc_sli4_params *sli4_params;
8364         uint32_t mbox_tmo;
8365
8366         rc = 0;
8367         mqe = &mboxq->u.mqe;
8368
8369         /* Read the port's SLI4 Parameters port capabilities */
8370         lpfc_pc_sli4_params(mboxq);
8371         if (!phba->sli4_hba.intr_enable)
8372                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8373         else {
8374                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8375                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8376         }
8377
8378         if (unlikely(rc))
8379                 return 1;
8380
8381         sli4_params = &phba->sli4_hba.pc_sli4_params;
8382         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
8383         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
8384         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
8385         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
8386                                              &mqe->un.sli4_params);
8387         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
8388                                              &mqe->un.sli4_params);
8389         sli4_params->proto_types = mqe->un.sli4_params.word3;
8390         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
8391         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
8392         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
8393         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
8394         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
8395         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
8396         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
8397         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
8398         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
8399         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
8400         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
8401         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
8402         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
8403         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
8404         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
8405         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
8406         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
8407         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
8408         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
8409         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
8410
8411         /* Make sure that sge_supp_len can be handled by the driver */
8412         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8413                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8414
8415         return rc;
8416 }
8417
8418 /**
8419  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
8420  * @phba: Pointer to HBA context object.
8421  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8422  *
8423  * This function is called in the SLI4 code path to read the port's
8424  * sli4 capabilities.
8425  *
8426  * This function may be be called from any context that can block-wait
8427  * for the completion.  The expectation is that this routine is called
8428  * typically from probe_one or from the online routine.
8429  **/
8430 int
8431 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8432 {
8433         int rc;
8434         struct lpfc_mqe *mqe = &mboxq->u.mqe;
8435         struct lpfc_pc_sli4_params *sli4_params;
8436         uint32_t mbox_tmo;
8437         int length;
8438         struct lpfc_sli4_parameters *mbx_sli4_parameters;
8439
8440         /*
8441          * By default, the driver assumes the SLI4 port requires RPI
8442          * header postings.  The SLI4_PARAM response will correct this
8443          * assumption.
8444          */
8445         phba->sli4_hba.rpi_hdrs_in_use = 1;
8446
8447         /* Read the port's SLI4 Config Parameters */
8448         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
8449                   sizeof(struct lpfc_sli4_cfg_mhdr));
8450         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8451                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
8452                          length, LPFC_SLI4_MBX_EMBED);
8453         if (!phba->sli4_hba.intr_enable)
8454                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8455         else {
8456                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8457                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8458         }
8459         if (unlikely(rc))
8460                 return rc;
8461         sli4_params = &phba->sli4_hba.pc_sli4_params;
8462         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
8463         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
8464         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
8465         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
8466         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
8467                                              mbx_sli4_parameters);
8468         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
8469                                              mbx_sli4_parameters);
8470         if (bf_get(cfg_phwq, mbx_sli4_parameters))
8471                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
8472         else
8473                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
8474         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
8475         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
8476         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
8477         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
8478         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
8479         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
8480         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
8481                                             mbx_sli4_parameters);
8482         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
8483                                            mbx_sli4_parameters);
8484         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
8485         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
8486
8487         /* Make sure that sge_supp_len can be handled by the driver */
8488         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8489                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8490
8491         return 0;
8492 }
8493
8494 /**
8495  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
8496  * @pdev: pointer to PCI device
8497  * @pid: pointer to PCI device identifier
8498  *
8499  * This routine is to be called to attach a device with SLI-3 interface spec
8500  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8501  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8502  * information of the device and driver to see if the driver state that it can
8503  * support this kind of device. If the match is successful, the driver core
8504  * invokes this routine. If this routine determines it can claim the HBA, it
8505  * does all the initialization that it needs to do to handle the HBA properly.
8506  *
8507  * Return code
8508  *      0 - driver can claim the device
8509  *      negative value - driver can not claim the device
8510  **/
8511 static int __devinit
8512 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
8513 {
8514         struct lpfc_hba   *phba;
8515         struct lpfc_vport *vport = NULL;
8516         struct Scsi_Host  *shost = NULL;
8517         int error;
8518         uint32_t cfg_mode, intr_mode;
8519
8520         /* Allocate memory for HBA structure */
8521         phba = lpfc_hba_alloc(pdev);
8522         if (!phba)
8523                 return -ENOMEM;
8524
8525         /* Perform generic PCI device enabling operation */
8526         error = lpfc_enable_pci_dev(phba);
8527         if (error)
8528                 goto out_free_phba;
8529
8530         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
8531         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
8532         if (error)
8533                 goto out_disable_pci_dev;
8534
8535         /* Set up SLI-3 specific device PCI memory space */
8536         error = lpfc_sli_pci_mem_setup(phba);
8537         if (error) {
8538                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8539                                 "1402 Failed to set up pci memory space.\n");
8540                 goto out_disable_pci_dev;
8541         }
8542
8543         /* Set up phase-1 common device driver resources */
8544         error = lpfc_setup_driver_resource_phase1(phba);
8545         if (error) {
8546                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8547                                 "1403 Failed to set up driver resource.\n");
8548                 goto out_unset_pci_mem_s3;
8549         }
8550
8551         /* Set up SLI-3 specific device driver resources */
8552         error = lpfc_sli_driver_resource_setup(phba);
8553         if (error) {
8554                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8555                                 "1404 Failed to set up driver resource.\n");
8556                 goto out_unset_pci_mem_s3;
8557         }
8558
8559         /* Initialize and populate the iocb list per host */
8560         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
8561         if (error) {
8562                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8563                                 "1405 Failed to initialize iocb list.\n");
8564                 goto out_unset_driver_resource_s3;
8565         }
8566
8567         /* Set up common device driver resources */
8568         error = lpfc_setup_driver_resource_phase2(phba);
8569         if (error) {
8570                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8571                                 "1406 Failed to set up driver resource.\n");
8572                 goto out_free_iocb_list;
8573         }
8574
8575         /* Get the default values for Model Name and Description */
8576         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
8577
8578         /* Create SCSI host to the physical port */
8579         error = lpfc_create_shost(phba);
8580         if (error) {
8581                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8582                                 "1407 Failed to create scsi host.\n");
8583                 goto out_unset_driver_resource;
8584         }
8585
8586         /* Configure sysfs attributes */
8587         vport = phba->pport;
8588         error = lpfc_alloc_sysfs_attr(vport);
8589         if (error) {
8590                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8591                                 "1476 Failed to allocate sysfs attr\n");
8592                 goto out_destroy_shost;
8593         }
8594
8595         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8596         /* Now, trying to enable interrupt and bring up the device */
8597         cfg_mode = phba->cfg_use_msi;
8598         while (true) {
8599                 /* Put device to a known state before enabling interrupt */
8600                 lpfc_stop_port(phba);
8601                 /* Configure and enable interrupt */
8602                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8603                 if (intr_mode == LPFC_INTR_ERROR) {
8604                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8605                                         "0431 Failed to enable interrupt.\n");
8606                         error = -ENODEV;
8607                         goto out_free_sysfs_attr;
8608                 }
8609                 /* SLI-3 HBA setup */
8610                 if (lpfc_sli_hba_setup(phba)) {
8611                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8612                                         "1477 Failed to set up hba\n");
8613                         error = -ENODEV;
8614                         goto out_remove_device;
8615                 }
8616
8617                 /* Wait 50ms for the interrupts of previous mailbox commands */
8618                 msleep(50);
8619                 /* Check active interrupts on message signaled interrupts */
8620                 if (intr_mode == 0 ||
8621                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8622                         /* Log the current active interrupt mode */
8623                         phba->intr_mode = intr_mode;
8624                         lpfc_log_intr_mode(phba, intr_mode);
8625                         break;
8626                 } else {
8627                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8628                                         "0447 Configure interrupt mode (%d) "
8629                                         "failed active interrupt test.\n",
8630                                         intr_mode);
8631                         /* Disable the current interrupt mode */
8632                         lpfc_sli_disable_intr(phba);
8633                         /* Try next level of interrupt mode */
8634                         cfg_mode = --intr_mode;
8635                 }
8636         }
8637
8638         /* Perform post initialization setup */
8639         lpfc_post_init_setup(phba);
8640
8641         /* Check if there are static vports to be created. */
8642         lpfc_create_static_vport(phba);
8643
8644         return 0;
8645
8646 out_remove_device:
8647         lpfc_unset_hba(phba);
8648 out_free_sysfs_attr:
8649         lpfc_free_sysfs_attr(vport);
8650 out_destroy_shost:
8651         lpfc_destroy_shost(phba);
8652 out_unset_driver_resource:
8653         lpfc_unset_driver_resource_phase2(phba);
8654 out_free_iocb_list:
8655         lpfc_free_iocb_list(phba);
8656 out_unset_driver_resource_s3:
8657         lpfc_sli_driver_resource_unset(phba);
8658 out_unset_pci_mem_s3:
8659         lpfc_sli_pci_mem_unset(phba);
8660 out_disable_pci_dev:
8661         lpfc_disable_pci_dev(phba);
8662         if (shost)
8663                 scsi_host_put(shost);
8664 out_free_phba:
8665         lpfc_hba_free(phba);
8666         return error;
8667 }
8668
8669 /**
8670  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8671  * @pdev: pointer to PCI device
8672  *
8673  * This routine is to be called to disattach a device with SLI-3 interface
8674  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8675  * removed from PCI bus, it performs all the necessary cleanup for the HBA
8676  * device to be removed from the PCI subsystem properly.
8677  **/
8678 static void __devexit
8679 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8680 {
8681         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
8682         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8683         struct lpfc_vport **vports;
8684         struct lpfc_hba   *phba = vport->phba;
8685         int i;
8686         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8687
8688         spin_lock_irq(&phba->hbalock);
8689         vport->load_flag |= FC_UNLOADING;
8690         spin_unlock_irq(&phba->hbalock);
8691
8692         lpfc_free_sysfs_attr(vport);
8693
8694         /* Release all the vports against this physical port */
8695         vports = lpfc_create_vport_work_array(phba);
8696         if (vports != NULL)
8697                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8698                         fc_vport_terminate(vports[i]->fc_vport);
8699         lpfc_destroy_vport_work_array(phba, vports);
8700
8701         /* Remove FC host and then SCSI host with the physical port */
8702         fc_remove_host(shost);
8703         scsi_remove_host(shost);
8704         lpfc_cleanup(vport);
8705
8706         /*
8707          * Bring down the SLI Layer. This step disable all interrupts,
8708          * clears the rings, discards all mailbox commands, and resets
8709          * the HBA.
8710          */
8711
8712         /* HBA interrupt will be disabled after this call */
8713         lpfc_sli_hba_down(phba);
8714         /* Stop kthread signal shall trigger work_done one more time */
8715         kthread_stop(phba->worker_thread);
8716         /* Final cleanup of txcmplq and reset the HBA */
8717         lpfc_sli_brdrestart(phba);
8718
8719         kfree(phba->vpi_bmask);
8720         kfree(phba->vpi_ids);
8721
8722         lpfc_stop_hba_timers(phba);
8723         spin_lock_irq(&phba->hbalock);
8724         list_del_init(&vport->listentry);
8725         spin_unlock_irq(&phba->hbalock);
8726
8727         lpfc_debugfs_terminate(vport);
8728
8729         /* Disable SR-IOV if enabled */
8730         if (phba->cfg_sriov_nr_virtfn)
8731                 pci_disable_sriov(pdev);
8732
8733         /* Disable interrupt */
8734         lpfc_sli_disable_intr(phba);
8735
8736         pci_set_drvdata(pdev, NULL);
8737         scsi_host_put(shost);
8738
8739         /*
8740          * Call scsi_free before mem_free since scsi bufs are released to their
8741          * corresponding pools here.
8742          */
8743         lpfc_scsi_free(phba);
8744         lpfc_mem_free_all(phba);
8745
8746         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8747                           phba->hbqslimp.virt, phba->hbqslimp.phys);
8748
8749         /* Free resources associated with SLI2 interface */
8750         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8751                           phba->slim2p.virt, phba->slim2p.phys);
8752
8753         /* unmap adapter SLIM and Control Registers */
8754         iounmap(phba->ctrl_regs_memmap_p);
8755         iounmap(phba->slim_memmap_p);
8756
8757         lpfc_hba_free(phba);
8758
8759         pci_release_selected_regions(pdev, bars);
8760         pci_disable_device(pdev);
8761 }
8762
8763 /**
8764  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8765  * @pdev: pointer to PCI device
8766  * @msg: power management message
8767  *
8768  * This routine is to be called from the kernel's PCI subsystem to support
8769  * system Power Management (PM) to device with SLI-3 interface spec. When
8770  * PM invokes this method, it quiesces the device by stopping the driver's
8771  * worker thread for the device, turning off device's interrupt and DMA,
8772  * and bring the device offline. Note that as the driver implements the
8773  * minimum PM requirements to a power-aware driver's PM support for the
8774  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8775  * to the suspend() method call will be treated as SUSPEND and the driver will
8776  * fully reinitialize its device during resume() method call, the driver will
8777  * set device to PCI_D3hot state in PCI config space instead of setting it
8778  * according to the @msg provided by the PM.
8779  *
8780  * Return code
8781  *      0 - driver suspended the device
8782  *      Error otherwise
8783  **/
8784 static int
8785 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
8786 {
8787         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8788         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8789
8790         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8791                         "0473 PCI device Power Management suspend.\n");
8792
8793         /* Bring down the device */
8794         lpfc_offline_prep(phba);
8795         lpfc_offline(phba);
8796         kthread_stop(phba->worker_thread);
8797
8798         /* Disable interrupt from device */
8799         lpfc_sli_disable_intr(phba);
8800
8801         /* Save device state to PCI config space */
8802         pci_save_state(pdev);
8803         pci_set_power_state(pdev, PCI_D3hot);
8804
8805         return 0;
8806 }
8807
8808 /**
8809  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
8810  * @pdev: pointer to PCI device
8811  *
8812  * This routine is to be called from the kernel's PCI subsystem to support
8813  * system Power Management (PM) to device with SLI-3 interface spec. When PM
8814  * invokes this method, it restores the device's PCI config space state and
8815  * fully reinitializes the device and brings it online. Note that as the
8816  * driver implements the minimum PM requirements to a power-aware driver's
8817  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
8818  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
8819  * driver will fully reinitialize its device during resume() method call,
8820  * the device will be set to PCI_D0 directly in PCI config space before
8821  * restoring the state.
8822  *
8823  * Return code
8824  *      0 - driver suspended the device
8825  *      Error otherwise
8826  **/
8827 static int
8828 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
8829 {
8830         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8831         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8832         uint32_t intr_mode;
8833         int error;
8834
8835         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8836                         "0452 PCI device Power Management resume.\n");
8837
8838         /* Restore device state from PCI config space */
8839         pci_set_power_state(pdev, PCI_D0);
8840         pci_restore_state(pdev);
8841
8842         /*
8843          * As the new kernel behavior of pci_restore_state() API call clears
8844          * device saved_state flag, need to save the restored state again.
8845          */
8846         pci_save_state(pdev);
8847
8848         if (pdev->is_busmaster)
8849                 pci_set_master(pdev);
8850
8851         /* Startup the kernel thread for this host adapter. */
8852         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8853                                         "lpfc_worker_%d", phba->brd_no);
8854         if (IS_ERR(phba->worker_thread)) {
8855                 error = PTR_ERR(phba->worker_thread);
8856                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8857                                 "0434 PM resume failed to start worker "
8858                                 "thread: error=x%x.\n", error);
8859                 return error;
8860         }
8861
8862         /* Configure and enable interrupt */
8863         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8864         if (intr_mode == LPFC_INTR_ERROR) {
8865                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8866                                 "0430 PM resume Failed to enable interrupt\n");
8867                 return -EIO;
8868         } else
8869                 phba->intr_mode = intr_mode;
8870
8871         /* Restart HBA and bring it online */
8872         lpfc_sli_brdrestart(phba);
8873         lpfc_online(phba);
8874
8875         /* Log the current active interrupt mode */
8876         lpfc_log_intr_mode(phba, phba->intr_mode);
8877
8878         return 0;
8879 }
8880
8881 /**
8882  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
8883  * @phba: pointer to lpfc hba data structure.
8884  *
8885  * This routine is called to prepare the SLI3 device for PCI slot recover. It
8886  * aborts all the outstanding SCSI I/Os to the pci device.
8887  **/
8888 static void
8889 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
8890 {
8891         struct lpfc_sli *psli = &phba->sli;
8892         struct lpfc_sli_ring  *pring;
8893
8894         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8895                         "2723 PCI channel I/O abort preparing for recovery\n");
8896
8897         /*
8898          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8899          * and let the SCSI mid-layer to retry them to recover.
8900          */
8901         pring = &psli->ring[psli->fcp_ring];
8902         lpfc_sli_abort_iocb_ring(phba, pring);
8903 }
8904
8905 /**
8906  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
8907  * @phba: pointer to lpfc hba data structure.
8908  *
8909  * This routine is called to prepare the SLI3 device for PCI slot reset. It
8910  * disables the device interrupt and pci device, and aborts the internal FCP
8911  * pending I/Os.
8912  **/
8913 static void
8914 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
8915 {
8916         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8917                         "2710 PCI channel disable preparing for reset\n");
8918
8919         /* Block any management I/Os to the device */
8920         lpfc_block_mgmt_io(phba);
8921
8922         /* Block all SCSI devices' I/Os on the host */
8923         lpfc_scsi_dev_block(phba);
8924
8925         /* stop all timers */
8926         lpfc_stop_hba_timers(phba);
8927
8928         /* Disable interrupt and pci device */
8929         lpfc_sli_disable_intr(phba);
8930         pci_disable_device(phba->pcidev);
8931
8932         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8933         lpfc_sli_flush_fcp_rings(phba);
8934 }
8935
8936 /**
8937  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
8938  * @phba: pointer to lpfc hba data structure.
8939  *
8940  * This routine is called to prepare the SLI3 device for PCI slot permanently
8941  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8942  * pending I/Os.
8943  **/
8944 static void
8945 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
8946 {
8947         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8948                         "2711 PCI channel permanent disable for failure\n");
8949         /* Block all SCSI devices' I/Os on the host */
8950         lpfc_scsi_dev_block(phba);
8951
8952         /* stop all timers */
8953         lpfc_stop_hba_timers(phba);
8954
8955         /* Clean up all driver's outstanding SCSI I/Os */
8956         lpfc_sli_flush_fcp_rings(phba);
8957 }
8958
8959 /**
8960  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
8961  * @pdev: pointer to PCI device.
8962  * @state: the current PCI connection state.
8963  *
8964  * This routine is called from the PCI subsystem for I/O error handling to
8965  * device with SLI-3 interface spec. This function is called by the PCI
8966  * subsystem after a PCI bus error affecting this device has been detected.
8967  * When this function is invoked, it will need to stop all the I/Os and
8968  * interrupt(s) to the device. Once that is done, it will return
8969  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
8970  * as desired.
8971  *
8972  * Return codes
8973  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
8974  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8975  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8976  **/
8977 static pci_ers_result_t
8978 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
8979 {
8980         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8981         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8982
8983         switch (state) {
8984         case pci_channel_io_normal:
8985                 /* Non-fatal error, prepare for recovery */
8986                 lpfc_sli_prep_dev_for_recover(phba);
8987                 return PCI_ERS_RESULT_CAN_RECOVER;
8988         case pci_channel_io_frozen:
8989                 /* Fatal error, prepare for slot reset */
8990                 lpfc_sli_prep_dev_for_reset(phba);
8991                 return PCI_ERS_RESULT_NEED_RESET;
8992         case pci_channel_io_perm_failure:
8993                 /* Permanent failure, prepare for device down */
8994                 lpfc_sli_prep_dev_for_perm_failure(phba);
8995                 return PCI_ERS_RESULT_DISCONNECT;
8996         default:
8997                 /* Unknown state, prepare and request slot reset */
8998                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8999                                 "0472 Unknown PCI error state: x%x\n", state);
9000                 lpfc_sli_prep_dev_for_reset(phba);
9001                 return PCI_ERS_RESULT_NEED_RESET;
9002         }
9003 }
9004
9005 /**
9006  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
9007  * @pdev: pointer to PCI device.
9008  *
9009  * This routine is called from the PCI subsystem for error handling to
9010  * device with SLI-3 interface spec. This is called after PCI bus has been
9011  * reset to restart the PCI card from scratch, as if from a cold-boot.
9012  * During the PCI subsystem error recovery, after driver returns
9013  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9014  * recovery and then call this routine before calling the .resume method
9015  * to recover the device. This function will initialize the HBA device,
9016  * enable the interrupt, but it will just put the HBA to offline state
9017  * without passing any I/O traffic.
9018  *
9019  * Return codes
9020  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9021  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9022  */
9023 static pci_ers_result_t
9024 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
9025 {
9026         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9027         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9028         struct lpfc_sli *psli = &phba->sli;
9029         uint32_t intr_mode;
9030
9031         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9032         if (pci_enable_device_mem(pdev)) {
9033                 printk(KERN_ERR "lpfc: Cannot re-enable "
9034                         "PCI device after reset.\n");
9035                 return PCI_ERS_RESULT_DISCONNECT;
9036         }
9037
9038         pci_restore_state(pdev);
9039
9040         /*
9041          * As the new kernel behavior of pci_restore_state() API call clears
9042          * device saved_state flag, need to save the restored state again.
9043          */
9044         pci_save_state(pdev);
9045
9046         if (pdev->is_busmaster)
9047                 pci_set_master(pdev);
9048
9049         spin_lock_irq(&phba->hbalock);
9050         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9051         spin_unlock_irq(&phba->hbalock);
9052
9053         /* Configure and enable interrupt */
9054         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9055         if (intr_mode == LPFC_INTR_ERROR) {
9056                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9057                                 "0427 Cannot re-enable interrupt after "
9058                                 "slot reset.\n");
9059                 return PCI_ERS_RESULT_DISCONNECT;
9060         } else
9061                 phba->intr_mode = intr_mode;
9062
9063         /* Take device offline, it will perform cleanup */
9064         lpfc_offline_prep(phba);
9065         lpfc_offline(phba);
9066         lpfc_sli_brdrestart(phba);
9067
9068         /* Log the current active interrupt mode */
9069         lpfc_log_intr_mode(phba, phba->intr_mode);
9070
9071         return PCI_ERS_RESULT_RECOVERED;
9072 }
9073
9074 /**
9075  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
9076  * @pdev: pointer to PCI device
9077  *
9078  * This routine is called from the PCI subsystem for error handling to device
9079  * with SLI-3 interface spec. It is called when kernel error recovery tells
9080  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9081  * error recovery. After this call, traffic can start to flow from this device
9082  * again.
9083  */
9084 static void
9085 lpfc_io_resume_s3(struct pci_dev *pdev)
9086 {
9087         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9088         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9089
9090         /* Bring device online, it will be no-op for non-fatal error resume */
9091         lpfc_online(phba);
9092
9093         /* Clean up Advanced Error Reporting (AER) if needed */
9094         if (phba->hba_flag & HBA_AER_ENABLED)
9095                 pci_cleanup_aer_uncorrect_error_status(pdev);
9096 }
9097
9098 /**
9099  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
9100  * @phba: pointer to lpfc hba data structure.
9101  *
9102  * returns the number of ELS/CT IOCBs to reserve
9103  **/
9104 int
9105 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
9106 {
9107         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
9108
9109         if (phba->sli_rev == LPFC_SLI_REV4) {
9110                 if (max_xri <= 100)
9111                         return 10;
9112                 else if (max_xri <= 256)
9113                         return 25;
9114                 else if (max_xri <= 512)
9115                         return 50;
9116                 else if (max_xri <= 1024)
9117                         return 100;
9118                 else
9119                         return 150;
9120         } else
9121                 return 0;
9122 }
9123
9124 /**
9125  * lpfc_write_firmware - attempt to write a firmware image to the port
9126  * @phba: pointer to lpfc hba data structure.
9127  * @fw: pointer to firmware image returned from request_firmware.
9128  *
9129  * returns the number of bytes written if write is successful.
9130  * returns a negative error value if there were errors.
9131  * returns 0 if firmware matches currently active firmware on port.
9132  **/
9133 int
9134 lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw)
9135 {
9136         char fwrev[FW_REV_STR_SIZE];
9137         struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data;
9138         struct list_head dma_buffer_list;
9139         int i, rc = 0;
9140         struct lpfc_dmabuf *dmabuf, *next;
9141         uint32_t offset = 0, temp_offset = 0;
9142
9143         INIT_LIST_HEAD(&dma_buffer_list);
9144         if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
9145             (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
9146              LPFC_FILE_TYPE_GROUP) ||
9147             (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
9148             (be32_to_cpu(image->size) != fw->size)) {
9149                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9150                                 "3022 Invalid FW image found. "
9151                                 "Magic:%x Type:%x ID:%x\n",
9152                                 be32_to_cpu(image->magic_number),
9153                                 bf_get_be32(lpfc_grp_hdr_file_type, image),
9154                                 bf_get_be32(lpfc_grp_hdr_id, image));
9155                 return -EINVAL;
9156         }
9157         lpfc_decode_firmware_rev(phba, fwrev, 1);
9158         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
9159                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9160                                 "3023 Updating Firmware. Current Version:%s "
9161                                 "New Version:%s\n",
9162                                 fwrev, image->revision);
9163                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
9164                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
9165                                          GFP_KERNEL);
9166                         if (!dmabuf) {
9167                                 rc = -ENOMEM;
9168                                 goto out;
9169                         }
9170                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
9171                                                           SLI4_PAGE_SIZE,
9172                                                           &dmabuf->phys,
9173                                                           GFP_KERNEL);
9174                         if (!dmabuf->virt) {
9175                                 kfree(dmabuf);
9176                                 rc = -ENOMEM;
9177                                 goto out;
9178                         }
9179                         list_add_tail(&dmabuf->list, &dma_buffer_list);
9180                 }
9181                 while (offset < fw->size) {
9182                         temp_offset = offset;
9183                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
9184                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
9185                                         memcpy(dmabuf->virt,
9186                                                fw->data + temp_offset,
9187                                                fw->size - temp_offset);
9188                                         temp_offset = fw->size;
9189                                         break;
9190                                 }
9191                                 memcpy(dmabuf->virt, fw->data + temp_offset,
9192                                        SLI4_PAGE_SIZE);
9193                                 temp_offset += SLI4_PAGE_SIZE;
9194                         }
9195                         rc = lpfc_wr_object(phba, &dma_buffer_list,
9196                                     (fw->size - offset), &offset);
9197                         if (rc) {
9198                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9199                                                 "3024 Firmware update failed. "
9200                                                 "%d\n", rc);
9201                                 goto out;
9202                         }
9203                 }
9204                 rc = offset;
9205         }
9206 out:
9207         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
9208                 list_del(&dmabuf->list);
9209                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
9210                                   dmabuf->virt, dmabuf->phys);
9211                 kfree(dmabuf);
9212         }
9213         return rc;
9214 }
9215
9216 /**
9217  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
9218  * @pdev: pointer to PCI device
9219  * @pid: pointer to PCI device identifier
9220  *
9221  * This routine is called from the kernel's PCI subsystem to device with
9222  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9223  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9224  * information of the device and driver to see if the driver state that it
9225  * can support this kind of device. If the match is successful, the driver
9226  * core invokes this routine. If this routine determines it can claim the HBA,
9227  * it does all the initialization that it needs to do to handle the HBA
9228  * properly.
9229  *
9230  * Return code
9231  *      0 - driver can claim the device
9232  *      negative value - driver can not claim the device
9233  **/
9234 static int __devinit
9235 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
9236 {
9237         struct lpfc_hba   *phba;
9238         struct lpfc_vport *vport = NULL;
9239         struct Scsi_Host  *shost = NULL;
9240         int error;
9241         uint32_t cfg_mode, intr_mode;
9242         int mcnt;
9243         int adjusted_fcp_eq_count;
9244         const struct firmware *fw;
9245         uint8_t file_name[16];
9246
9247         /* Allocate memory for HBA structure */
9248         phba = lpfc_hba_alloc(pdev);
9249         if (!phba)
9250                 return -ENOMEM;
9251
9252         /* Perform generic PCI device enabling operation */
9253         error = lpfc_enable_pci_dev(phba);
9254         if (error)
9255                 goto out_free_phba;
9256
9257         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9258         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
9259         if (error)
9260                 goto out_disable_pci_dev;
9261
9262         /* Set up SLI-4 specific device PCI memory space */
9263         error = lpfc_sli4_pci_mem_setup(phba);
9264         if (error) {
9265                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9266                                 "1410 Failed to set up pci memory space.\n");
9267                 goto out_disable_pci_dev;
9268         }
9269
9270         /* Set up phase-1 common device driver resources */
9271         error = lpfc_setup_driver_resource_phase1(phba);
9272         if (error) {
9273                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9274                                 "1411 Failed to set up driver resource.\n");
9275                 goto out_unset_pci_mem_s4;
9276         }
9277
9278         /* Set up SLI-4 Specific device driver resources */
9279         error = lpfc_sli4_driver_resource_setup(phba);
9280         if (error) {
9281                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9282                                 "1412 Failed to set up driver resource.\n");
9283                 goto out_unset_pci_mem_s4;
9284         }
9285
9286         /* Initialize and populate the iocb list per host */
9287
9288         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9289                         "2821 initialize iocb list %d.\n",
9290                         phba->cfg_iocb_cnt*1024);
9291         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
9292
9293         if (error) {
9294                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9295                                 "1413 Failed to initialize iocb list.\n");
9296                 goto out_unset_driver_resource_s4;
9297         }
9298
9299         INIT_LIST_HEAD(&phba->active_rrq_list);
9300         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
9301
9302         /* Set up common device driver resources */
9303         error = lpfc_setup_driver_resource_phase2(phba);
9304         if (error) {
9305                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9306                                 "1414 Failed to set up driver resource.\n");
9307                 goto out_free_iocb_list;
9308         }
9309
9310         /* Get the default values for Model Name and Description */
9311         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9312
9313         /* Create SCSI host to the physical port */
9314         error = lpfc_create_shost(phba);
9315         if (error) {
9316                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9317                                 "1415 Failed to create scsi host.\n");
9318                 goto out_unset_driver_resource;
9319         }
9320
9321         /* Configure sysfs attributes */
9322         vport = phba->pport;
9323         error = lpfc_alloc_sysfs_attr(vport);
9324         if (error) {
9325                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9326                                 "1416 Failed to allocate sysfs attr\n");
9327                 goto out_destroy_shost;
9328         }
9329
9330         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9331         /* Now, trying to enable interrupt and bring up the device */
9332         cfg_mode = phba->cfg_use_msi;
9333         while (true) {
9334                 /* Put device to a known state before enabling interrupt */
9335                 lpfc_stop_port(phba);
9336                 /* Configure and enable interrupt */
9337                 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
9338                 if (intr_mode == LPFC_INTR_ERROR) {
9339                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9340                                         "0426 Failed to enable interrupt.\n");
9341                         error = -ENODEV;
9342                         goto out_free_sysfs_attr;
9343                 }
9344                 /* Default to single EQ for non-MSI-X */
9345                 if (phba->intr_type != MSIX)
9346                         adjusted_fcp_eq_count = 0;
9347                 else if (phba->sli4_hba.msix_vec_nr <
9348                                         phba->cfg_fcp_eq_count + 1)
9349                         adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
9350                 else
9351                         adjusted_fcp_eq_count = phba->cfg_fcp_eq_count;
9352                 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count;
9353                 /* Set up SLI-4 HBA */
9354                 if (lpfc_sli4_hba_setup(phba)) {
9355                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9356                                         "1421 Failed to set up hba\n");
9357                         error = -ENODEV;
9358                         goto out_disable_intr;
9359                 }
9360
9361                 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
9362                 if (intr_mode != 0)
9363                         mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
9364                                                             LPFC_ACT_INTR_CNT);
9365
9366                 /* Check active interrupts received only for MSI/MSI-X */
9367                 if (intr_mode == 0 ||
9368                     phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
9369                         /* Log the current active interrupt mode */
9370                         phba->intr_mode = intr_mode;
9371                         lpfc_log_intr_mode(phba, intr_mode);
9372                         break;
9373                 }
9374                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9375                                 "0451 Configure interrupt mode (%d) "
9376                                 "failed active interrupt test.\n",
9377                                 intr_mode);
9378                 /* Unset the previous SLI-4 HBA setup. */
9379                 /*
9380                  * TODO:  Is this operation compatible with IF TYPE 2
9381                  * devices?  All port state is deleted and cleared.
9382                  */
9383                 lpfc_sli4_unset_hba(phba);
9384                 /* Try next level of interrupt mode */
9385                 cfg_mode = --intr_mode;
9386         }
9387
9388         /* Perform post initialization setup */
9389         lpfc_post_init_setup(phba);
9390
9391         /* check for firmware upgrade or downgrade (if_type 2 only) */
9392         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
9393             LPFC_SLI_INTF_IF_TYPE_2) {
9394                 snprintf(file_name, 16, "%s.grp", phba->ModelName);
9395                 error = request_firmware(&fw, file_name, &phba->pcidev->dev);
9396                 if (!error) {
9397                         lpfc_write_firmware(phba, fw);
9398                         release_firmware(fw);
9399                 }
9400         }
9401
9402         /* Check if there are static vports to be created. */
9403         lpfc_create_static_vport(phba);
9404         return 0;
9405
9406 out_disable_intr:
9407         lpfc_sli4_disable_intr(phba);
9408 out_free_sysfs_attr:
9409         lpfc_free_sysfs_attr(vport);
9410 out_destroy_shost:
9411         lpfc_destroy_shost(phba);
9412 out_unset_driver_resource:
9413         lpfc_unset_driver_resource_phase2(phba);
9414 out_free_iocb_list:
9415         lpfc_free_iocb_list(phba);
9416 out_unset_driver_resource_s4:
9417         lpfc_sli4_driver_resource_unset(phba);
9418 out_unset_pci_mem_s4:
9419         lpfc_sli4_pci_mem_unset(phba);
9420 out_disable_pci_dev:
9421         lpfc_disable_pci_dev(phba);
9422         if (shost)
9423                 scsi_host_put(shost);
9424 out_free_phba:
9425         lpfc_hba_free(phba);
9426         return error;
9427 }
9428
9429 /**
9430  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
9431  * @pdev: pointer to PCI device
9432  *
9433  * This routine is called from the kernel's PCI subsystem to device with
9434  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9435  * removed from PCI bus, it performs all the necessary cleanup for the HBA
9436  * device to be removed from the PCI subsystem properly.
9437  **/
9438 static void __devexit
9439 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
9440 {
9441         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9442         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9443         struct lpfc_vport **vports;
9444         struct lpfc_hba *phba = vport->phba;
9445         int i;
9446
9447         /* Mark the device unloading flag */
9448         spin_lock_irq(&phba->hbalock);
9449         vport->load_flag |= FC_UNLOADING;
9450         spin_unlock_irq(&phba->hbalock);
9451
9452         /* Free the HBA sysfs attributes */
9453         lpfc_free_sysfs_attr(vport);
9454
9455         /* Release all the vports against this physical port */
9456         vports = lpfc_create_vport_work_array(phba);
9457         if (vports != NULL)
9458                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
9459                         fc_vport_terminate(vports[i]->fc_vport);
9460         lpfc_destroy_vport_work_array(phba, vports);
9461
9462         /* Remove FC host and then SCSI host with the physical port */
9463         fc_remove_host(shost);
9464         scsi_remove_host(shost);
9465
9466         /* Perform cleanup on the physical port */
9467         lpfc_cleanup(vport);
9468
9469         /*
9470          * Bring down the SLI Layer. This step disables all interrupts,
9471          * clears the rings, discards all mailbox commands, and resets
9472          * the HBA FCoE function.
9473          */
9474         lpfc_debugfs_terminate(vport);
9475         lpfc_sli4_hba_unset(phba);
9476
9477         spin_lock_irq(&phba->hbalock);
9478         list_del_init(&vport->listentry);
9479         spin_unlock_irq(&phba->hbalock);
9480
9481         /* Perform scsi free before driver resource_unset since scsi
9482          * buffers are released to their corresponding pools here.
9483          */
9484         lpfc_scsi_free(phba);
9485         lpfc_sli4_driver_resource_unset(phba);
9486
9487         /* Unmap adapter Control and Doorbell registers */
9488         lpfc_sli4_pci_mem_unset(phba);
9489
9490         /* Release PCI resources and disable device's PCI function */
9491         scsi_host_put(shost);
9492         lpfc_disable_pci_dev(phba);
9493
9494         /* Finally, free the driver's device data structure */
9495         lpfc_hba_free(phba);
9496
9497         return;
9498 }
9499
9500 /**
9501  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
9502  * @pdev: pointer to PCI device
9503  * @msg: power management message
9504  *
9505  * This routine is called from the kernel's PCI subsystem to support system
9506  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
9507  * this method, it quiesces the device by stopping the driver's worker
9508  * thread for the device, turning off device's interrupt and DMA, and bring
9509  * the device offline. Note that as the driver implements the minimum PM
9510  * requirements to a power-aware driver's PM support for suspend/resume -- all
9511  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
9512  * method call will be treated as SUSPEND and the driver will fully
9513  * reinitialize its device during resume() method call, the driver will set
9514  * device to PCI_D3hot state in PCI config space instead of setting it
9515  * according to the @msg provided by the PM.
9516  *
9517  * Return code
9518  *      0 - driver suspended the device
9519  *      Error otherwise
9520  **/
9521 static int
9522 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
9523 {
9524         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9525         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9526
9527         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9528                         "2843 PCI device Power Management suspend.\n");
9529
9530         /* Bring down the device */
9531         lpfc_offline_prep(phba);
9532         lpfc_offline(phba);
9533         kthread_stop(phba->worker_thread);
9534
9535         /* Disable interrupt from device */
9536         lpfc_sli4_disable_intr(phba);
9537         lpfc_sli4_queue_destroy(phba);
9538
9539         /* Save device state to PCI config space */
9540         pci_save_state(pdev);
9541         pci_set_power_state(pdev, PCI_D3hot);
9542
9543         return 0;
9544 }
9545
9546 /**
9547  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
9548  * @pdev: pointer to PCI device
9549  *
9550  * This routine is called from the kernel's PCI subsystem to support system
9551  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
9552  * this method, it restores the device's PCI config space state and fully
9553  * reinitializes the device and brings it online. Note that as the driver
9554  * implements the minimum PM requirements to a power-aware driver's PM for
9555  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9556  * to the suspend() method call will be treated as SUSPEND and the driver
9557  * will fully reinitialize its device during resume() method call, the device
9558  * will be set to PCI_D0 directly in PCI config space before restoring the
9559  * state.
9560  *
9561  * Return code
9562  *      0 - driver suspended the device
9563  *      Error otherwise
9564  **/
9565 static int
9566 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
9567 {
9568         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9569         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9570         uint32_t intr_mode;
9571         int error;
9572
9573         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9574                         "0292 PCI device Power Management resume.\n");
9575
9576         /* Restore device state from PCI config space */
9577         pci_set_power_state(pdev, PCI_D0);
9578         pci_restore_state(pdev);
9579
9580         /*
9581          * As the new kernel behavior of pci_restore_state() API call clears
9582          * device saved_state flag, need to save the restored state again.
9583          */
9584         pci_save_state(pdev);
9585
9586         if (pdev->is_busmaster)
9587                 pci_set_master(pdev);
9588
9589          /* Startup the kernel thread for this host adapter. */
9590         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9591                                         "lpfc_worker_%d", phba->brd_no);
9592         if (IS_ERR(phba->worker_thread)) {
9593                 error = PTR_ERR(phba->worker_thread);
9594                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9595                                 "0293 PM resume failed to start worker "
9596                                 "thread: error=x%x.\n", error);
9597                 return error;
9598         }
9599
9600         /* Configure and enable interrupt */
9601         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9602         if (intr_mode == LPFC_INTR_ERROR) {
9603                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9604                                 "0294 PM resume Failed to enable interrupt\n");
9605                 return -EIO;
9606         } else
9607                 phba->intr_mode = intr_mode;
9608
9609         /* Restart HBA and bring it online */
9610         lpfc_sli_brdrestart(phba);
9611         lpfc_online(phba);
9612
9613         /* Log the current active interrupt mode */
9614         lpfc_log_intr_mode(phba, phba->intr_mode);
9615
9616         return 0;
9617 }
9618
9619 /**
9620  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
9621  * @phba: pointer to lpfc hba data structure.
9622  *
9623  * This routine is called to prepare the SLI4 device for PCI slot recover. It
9624  * aborts all the outstanding SCSI I/Os to the pci device.
9625  **/
9626 static void
9627 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
9628 {
9629         struct lpfc_sli *psli = &phba->sli;
9630         struct lpfc_sli_ring  *pring;
9631
9632         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9633                         "2828 PCI channel I/O abort preparing for recovery\n");
9634         /*
9635          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9636          * and let the SCSI mid-layer to retry them to recover.
9637          */
9638         pring = &psli->ring[psli->fcp_ring];
9639         lpfc_sli_abort_iocb_ring(phba, pring);
9640 }
9641
9642 /**
9643  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
9644  * @phba: pointer to lpfc hba data structure.
9645  *
9646  * This routine is called to prepare the SLI4 device for PCI slot reset. It
9647  * disables the device interrupt and pci device, and aborts the internal FCP
9648  * pending I/Os.
9649  **/
9650 static void
9651 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
9652 {
9653         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9654                         "2826 PCI channel disable preparing for reset\n");
9655
9656         /* Block any management I/Os to the device */
9657         lpfc_block_mgmt_io(phba);
9658
9659         /* Block all SCSI devices' I/Os on the host */
9660         lpfc_scsi_dev_block(phba);
9661
9662         /* stop all timers */
9663         lpfc_stop_hba_timers(phba);
9664
9665         /* Disable interrupt and pci device */
9666         lpfc_sli4_disable_intr(phba);
9667         lpfc_sli4_queue_destroy(phba);
9668         pci_disable_device(phba->pcidev);
9669
9670         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9671         lpfc_sli_flush_fcp_rings(phba);
9672 }
9673
9674 /**
9675  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
9676  * @phba: pointer to lpfc hba data structure.
9677  *
9678  * This routine is called to prepare the SLI4 device for PCI slot permanently
9679  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9680  * pending I/Os.
9681  **/
9682 static void
9683 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9684 {
9685         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9686                         "2827 PCI channel permanent disable for failure\n");
9687
9688         /* Block all SCSI devices' I/Os on the host */
9689         lpfc_scsi_dev_block(phba);
9690
9691         /* stop all timers */
9692         lpfc_stop_hba_timers(phba);
9693
9694         /* Clean up all driver's outstanding SCSI I/Os */
9695         lpfc_sli_flush_fcp_rings(phba);
9696 }
9697
9698 /**
9699  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
9700  * @pdev: pointer to PCI device.
9701  * @state: the current PCI connection state.
9702  *
9703  * This routine is called from the PCI subsystem for error handling to device
9704  * with SLI-4 interface spec. This function is called by the PCI subsystem
9705  * after a PCI bus error affecting this device has been detected. When this
9706  * function is invoked, it will need to stop all the I/Os and interrupt(s)
9707  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9708  * for the PCI subsystem to perform proper recovery as desired.
9709  *
9710  * Return codes
9711  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9712  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9713  **/
9714 static pci_ers_result_t
9715 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
9716 {
9717         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9718         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9719
9720         switch (state) {
9721         case pci_channel_io_normal:
9722                 /* Non-fatal error, prepare for recovery */
9723                 lpfc_sli4_prep_dev_for_recover(phba);
9724                 return PCI_ERS_RESULT_CAN_RECOVER;
9725         case pci_channel_io_frozen:
9726                 /* Fatal error, prepare for slot reset */
9727                 lpfc_sli4_prep_dev_for_reset(phba);
9728                 return PCI_ERS_RESULT_NEED_RESET;
9729         case pci_channel_io_perm_failure:
9730                 /* Permanent failure, prepare for device down */
9731                 lpfc_sli4_prep_dev_for_perm_failure(phba);
9732                 return PCI_ERS_RESULT_DISCONNECT;
9733         default:
9734                 /* Unknown state, prepare and request slot reset */
9735                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9736                                 "2825 Unknown PCI error state: x%x\n", state);
9737                 lpfc_sli4_prep_dev_for_reset(phba);
9738                 return PCI_ERS_RESULT_NEED_RESET;
9739         }
9740 }
9741
9742 /**
9743  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
9744  * @pdev: pointer to PCI device.
9745  *
9746  * This routine is called from the PCI subsystem for error handling to device
9747  * with SLI-4 interface spec. It is called after PCI bus has been reset to
9748  * restart the PCI card from scratch, as if from a cold-boot. During the
9749  * PCI subsystem error recovery, after the driver returns
9750  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9751  * recovery and then call this routine before calling the .resume method to
9752  * recover the device. This function will initialize the HBA device, enable
9753  * the interrupt, but it will just put the HBA to offline state without
9754  * passing any I/O traffic.
9755  *
9756  * Return codes
9757  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9758  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9759  */
9760 static pci_ers_result_t
9761 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
9762 {
9763         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9764         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9765         struct lpfc_sli *psli = &phba->sli;
9766         uint32_t intr_mode;
9767
9768         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9769         if (pci_enable_device_mem(pdev)) {
9770                 printk(KERN_ERR "lpfc: Cannot re-enable "
9771                         "PCI device after reset.\n");
9772                 return PCI_ERS_RESULT_DISCONNECT;
9773         }
9774
9775         pci_restore_state(pdev);
9776
9777         /*
9778          * As the new kernel behavior of pci_restore_state() API call clears
9779          * device saved_state flag, need to save the restored state again.
9780          */
9781         pci_save_state(pdev);
9782
9783         if (pdev->is_busmaster)
9784                 pci_set_master(pdev);
9785
9786         spin_lock_irq(&phba->hbalock);
9787         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9788         spin_unlock_irq(&phba->hbalock);
9789
9790         /* Configure and enable interrupt */
9791         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9792         if (intr_mode == LPFC_INTR_ERROR) {
9793                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9794                                 "2824 Cannot re-enable interrupt after "
9795                                 "slot reset.\n");
9796                 return PCI_ERS_RESULT_DISCONNECT;
9797         } else
9798                 phba->intr_mode = intr_mode;
9799
9800         /* Log the current active interrupt mode */
9801         lpfc_log_intr_mode(phba, phba->intr_mode);
9802
9803         return PCI_ERS_RESULT_RECOVERED;
9804 }
9805
9806 /**
9807  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
9808  * @pdev: pointer to PCI device
9809  *
9810  * This routine is called from the PCI subsystem for error handling to device
9811  * with SLI-4 interface spec. It is called when kernel error recovery tells
9812  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9813  * error recovery. After this call, traffic can start to flow from this device
9814  * again.
9815  **/
9816 static void
9817 lpfc_io_resume_s4(struct pci_dev *pdev)
9818 {
9819         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9820         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9821
9822         /*
9823          * In case of slot reset, as function reset is performed through
9824          * mailbox command which needs DMA to be enabled, this operation
9825          * has to be moved to the io resume phase. Taking device offline
9826          * will perform the necessary cleanup.
9827          */
9828         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
9829                 /* Perform device reset */
9830                 lpfc_offline_prep(phba);
9831                 lpfc_offline(phba);
9832                 lpfc_sli_brdrestart(phba);
9833                 /* Bring the device back online */
9834                 lpfc_online(phba);
9835         }
9836
9837         /* Clean up Advanced Error Reporting (AER) if needed */
9838         if (phba->hba_flag & HBA_AER_ENABLED)
9839                 pci_cleanup_aer_uncorrect_error_status(pdev);
9840 }
9841
9842 /**
9843  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
9844  * @pdev: pointer to PCI device
9845  * @pid: pointer to PCI device identifier
9846  *
9847  * This routine is to be registered to the kernel's PCI subsystem. When an
9848  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
9849  * at PCI device-specific information of the device and driver to see if the
9850  * driver state that it can support this kind of device. If the match is
9851  * successful, the driver core invokes this routine. This routine dispatches
9852  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
9853  * do all the initialization that it needs to do to handle the HBA device
9854  * properly.
9855  *
9856  * Return code
9857  *      0 - driver can claim the device
9858  *      negative value - driver can not claim the device
9859  **/
9860 static int __devinit
9861 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
9862 {
9863         int rc;
9864         struct lpfc_sli_intf intf;
9865
9866         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
9867                 return -ENODEV;
9868
9869         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
9870             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
9871                 rc = lpfc_pci_probe_one_s4(pdev, pid);
9872         else
9873                 rc = lpfc_pci_probe_one_s3(pdev, pid);
9874
9875         return rc;
9876 }
9877
9878 /**
9879  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
9880  * @pdev: pointer to PCI device
9881  *
9882  * This routine is to be registered to the kernel's PCI subsystem. When an
9883  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
9884  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
9885  * remove routine, which will perform all the necessary cleanup for the
9886  * device to be removed from the PCI subsystem properly.
9887  **/
9888 static void __devexit
9889 lpfc_pci_remove_one(struct pci_dev *pdev)
9890 {
9891         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9892         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9893
9894         switch (phba->pci_dev_grp) {
9895         case LPFC_PCI_DEV_LP:
9896                 lpfc_pci_remove_one_s3(pdev);
9897                 break;
9898         case LPFC_PCI_DEV_OC:
9899                 lpfc_pci_remove_one_s4(pdev);
9900                 break;
9901         default:
9902                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9903                                 "1424 Invalid PCI device group: 0x%x\n",
9904                                 phba->pci_dev_grp);
9905                 break;
9906         }
9907         return;
9908 }
9909
9910 /**
9911  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
9912  * @pdev: pointer to PCI device
9913  * @msg: power management message
9914  *
9915  * This routine is to be registered to the kernel's PCI subsystem to support
9916  * system Power Management (PM). When PM invokes this method, it dispatches
9917  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
9918  * suspend the device.
9919  *
9920  * Return code
9921  *      0 - driver suspended the device
9922  *      Error otherwise
9923  **/
9924 static int
9925 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
9926 {
9927         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9928         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9929         int rc = -ENODEV;
9930
9931         switch (phba->pci_dev_grp) {
9932         case LPFC_PCI_DEV_LP:
9933                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
9934                 break;
9935         case LPFC_PCI_DEV_OC:
9936                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
9937                 break;
9938         default:
9939                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9940                                 "1425 Invalid PCI device group: 0x%x\n",
9941                                 phba->pci_dev_grp);
9942                 break;
9943         }
9944         return rc;
9945 }
9946
9947 /**
9948  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
9949  * @pdev: pointer to PCI device
9950  *
9951  * This routine is to be registered to the kernel's PCI subsystem to support
9952  * system Power Management (PM). When PM invokes this method, it dispatches
9953  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
9954  * resume the device.
9955  *
9956  * Return code
9957  *      0 - driver suspended the device
9958  *      Error otherwise
9959  **/
9960 static int
9961 lpfc_pci_resume_one(struct pci_dev *pdev)
9962 {
9963         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9964         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9965         int rc = -ENODEV;
9966
9967         switch (phba->pci_dev_grp) {
9968         case LPFC_PCI_DEV_LP:
9969                 rc = lpfc_pci_resume_one_s3(pdev);
9970                 break;
9971         case LPFC_PCI_DEV_OC:
9972                 rc = lpfc_pci_resume_one_s4(pdev);
9973                 break;
9974         default:
9975                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9976                                 "1426 Invalid PCI device group: 0x%x\n",
9977                                 phba->pci_dev_grp);
9978                 break;
9979         }
9980         return rc;
9981 }
9982
9983 /**
9984  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
9985  * @pdev: pointer to PCI device.
9986  * @state: the current PCI connection state.
9987  *
9988  * This routine is registered to the PCI subsystem for error handling. This
9989  * function is called by the PCI subsystem after a PCI bus error affecting
9990  * this device has been detected. When this routine is invoked, it dispatches
9991  * the action to the proper SLI-3 or SLI-4 device error detected handling
9992  * routine, which will perform the proper error detected operation.
9993  *
9994  * Return codes
9995  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9996  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9997  **/
9998 static pci_ers_result_t
9999 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
10000 {
10001         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10002         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10003         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10004
10005         switch (phba->pci_dev_grp) {
10006         case LPFC_PCI_DEV_LP:
10007                 rc = lpfc_io_error_detected_s3(pdev, state);
10008                 break;
10009         case LPFC_PCI_DEV_OC:
10010                 rc = lpfc_io_error_detected_s4(pdev, state);
10011                 break;
10012         default:
10013                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10014                                 "1427 Invalid PCI device group: 0x%x\n",
10015                                 phba->pci_dev_grp);
10016                 break;
10017         }
10018         return rc;
10019 }
10020
10021 /**
10022  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
10023  * @pdev: pointer to PCI device.
10024  *
10025  * This routine is registered to the PCI subsystem for error handling. This
10026  * function is called after PCI bus has been reset to restart the PCI card
10027  * from scratch, as if from a cold-boot. When this routine is invoked, it
10028  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
10029  * routine, which will perform the proper device reset.
10030  *
10031  * Return codes
10032  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10033  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10034  **/
10035 static pci_ers_result_t
10036 lpfc_io_slot_reset(struct pci_dev *pdev)
10037 {
10038         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10039         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10040         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10041
10042         switch (phba->pci_dev_grp) {
10043         case LPFC_PCI_DEV_LP:
10044                 rc = lpfc_io_slot_reset_s3(pdev);
10045                 break;
10046         case LPFC_PCI_DEV_OC:
10047                 rc = lpfc_io_slot_reset_s4(pdev);
10048                 break;
10049         default:
10050                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10051                                 "1428 Invalid PCI device group: 0x%x\n",
10052                                 phba->pci_dev_grp);
10053                 break;
10054         }
10055         return rc;
10056 }
10057
10058 /**
10059  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
10060  * @pdev: pointer to PCI device
10061  *
10062  * This routine is registered to the PCI subsystem for error handling. It
10063  * is called when kernel error recovery tells the lpfc driver that it is
10064  * OK to resume normal PCI operation after PCI bus error recovery. When
10065  * this routine is invoked, it dispatches the action to the proper SLI-3
10066  * or SLI-4 device io_resume routine, which will resume the device operation.
10067  **/
10068 static void
10069 lpfc_io_resume(struct pci_dev *pdev)
10070 {
10071         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10072         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10073
10074         switch (phba->pci_dev_grp) {
10075         case LPFC_PCI_DEV_LP:
10076                 lpfc_io_resume_s3(pdev);
10077                 break;
10078         case LPFC_PCI_DEV_OC:
10079                 lpfc_io_resume_s4(pdev);
10080                 break;
10081         default:
10082                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10083                                 "1429 Invalid PCI device group: 0x%x\n",
10084                                 phba->pci_dev_grp);
10085                 break;
10086         }
10087         return;
10088 }
10089
10090 /**
10091  * lpfc_mgmt_open - method called when 'lpfcmgmt' is opened from userspace
10092  * @inode: pointer to the inode representing the lpfcmgmt device
10093  * @filep: pointer to the file representing the open lpfcmgmt device
10094  *
10095  * This routine puts a reference count on the lpfc module whenever the
10096  * character device is opened
10097  **/
10098 static int
10099 lpfc_mgmt_open(struct inode *inode, struct file *filep)
10100 {
10101         try_module_get(THIS_MODULE);
10102         return 0;
10103 }
10104
10105 /**
10106  * lpfc_mgmt_release - method called when 'lpfcmgmt' is closed in userspace
10107  * @inode: pointer to the inode representing the lpfcmgmt device
10108  * @filep: pointer to the file representing the open lpfcmgmt device
10109  *
10110  * This routine removes a reference count from the lpfc module when the
10111  * character device is closed
10112  **/
10113 static int
10114 lpfc_mgmt_release(struct inode *inode, struct file *filep)
10115 {
10116         module_put(THIS_MODULE);
10117         return 0;
10118 }
10119
10120 static struct pci_device_id lpfc_id_table[] = {
10121         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
10122                 PCI_ANY_ID, PCI_ANY_ID, },
10123         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
10124                 PCI_ANY_ID, PCI_ANY_ID, },
10125         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
10126                 PCI_ANY_ID, PCI_ANY_ID, },
10127         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
10128                 PCI_ANY_ID, PCI_ANY_ID, },
10129         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
10130                 PCI_ANY_ID, PCI_ANY_ID, },
10131         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
10132                 PCI_ANY_ID, PCI_ANY_ID, },
10133         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
10134                 PCI_ANY_ID, PCI_ANY_ID, },
10135         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
10136                 PCI_ANY_ID, PCI_ANY_ID, },
10137         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
10138                 PCI_ANY_ID, PCI_ANY_ID, },
10139         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
10140                 PCI_ANY_ID, PCI_ANY_ID, },
10141         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
10142                 PCI_ANY_ID, PCI_ANY_ID, },
10143         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
10144                 PCI_ANY_ID, PCI_ANY_ID, },
10145         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
10146                 PCI_ANY_ID, PCI_ANY_ID, },
10147         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
10148                 PCI_ANY_ID, PCI_ANY_ID, },
10149         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
10150                 PCI_ANY_ID, PCI_ANY_ID, },
10151         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
10152                 PCI_ANY_ID, PCI_ANY_ID, },
10153         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
10154                 PCI_ANY_ID, PCI_ANY_ID, },
10155         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
10156                 PCI_ANY_ID, PCI_ANY_ID, },
10157         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
10158                 PCI_ANY_ID, PCI_ANY_ID, },
10159         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
10160                 PCI_ANY_ID, PCI_ANY_ID, },
10161         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
10162                 PCI_ANY_ID, PCI_ANY_ID, },
10163         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
10164                 PCI_ANY_ID, PCI_ANY_ID, },
10165         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
10166                 PCI_ANY_ID, PCI_ANY_ID, },
10167         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
10168                 PCI_ANY_ID, PCI_ANY_ID, },
10169         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
10170                 PCI_ANY_ID, PCI_ANY_ID, },
10171         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
10172                 PCI_ANY_ID, PCI_ANY_ID, },
10173         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
10174                 PCI_ANY_ID, PCI_ANY_ID, },
10175         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
10176                 PCI_ANY_ID, PCI_ANY_ID, },
10177         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
10178                 PCI_ANY_ID, PCI_ANY_ID, },
10179         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
10180                 PCI_ANY_ID, PCI_ANY_ID, },
10181         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
10182                 PCI_ANY_ID, PCI_ANY_ID, },
10183         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
10184                 PCI_ANY_ID, PCI_ANY_ID, },
10185         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
10186                 PCI_ANY_ID, PCI_ANY_ID, },
10187         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
10188                 PCI_ANY_ID, PCI_ANY_ID, },
10189         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
10190                 PCI_ANY_ID, PCI_ANY_ID, },
10191         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
10192                 PCI_ANY_ID, PCI_ANY_ID, },
10193         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
10194                 PCI_ANY_ID, PCI_ANY_ID, },
10195         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
10196                 PCI_ANY_ID, PCI_ANY_ID, },
10197         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
10198                 PCI_ANY_ID, PCI_ANY_ID, },
10199         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
10200                 PCI_ANY_ID, PCI_ANY_ID, },
10201         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
10202                 PCI_ANY_ID, PCI_ANY_ID, },
10203         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
10204                 PCI_ANY_ID, PCI_ANY_ID, },
10205         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
10206                 PCI_ANY_ID, PCI_ANY_ID, },
10207         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
10208                 PCI_ANY_ID, PCI_ANY_ID, },
10209         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
10210                 PCI_ANY_ID, PCI_ANY_ID, },
10211         { 0 }
10212 };
10213
10214 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
10215
10216 static struct pci_error_handlers lpfc_err_handler = {
10217         .error_detected = lpfc_io_error_detected,
10218         .slot_reset = lpfc_io_slot_reset,
10219         .resume = lpfc_io_resume,
10220 };
10221
10222 static struct pci_driver lpfc_driver = {
10223         .name           = LPFC_DRIVER_NAME,
10224         .id_table       = lpfc_id_table,
10225         .probe          = lpfc_pci_probe_one,
10226         .remove         = __devexit_p(lpfc_pci_remove_one),
10227         .suspend        = lpfc_pci_suspend_one,
10228         .resume         = lpfc_pci_resume_one,
10229         .err_handler    = &lpfc_err_handler,
10230 };
10231
10232 static const struct file_operations lpfc_mgmt_fop = {
10233         .open = lpfc_mgmt_open,
10234         .release = lpfc_mgmt_release,
10235 };
10236
10237 static struct miscdevice lpfc_mgmt_dev = {
10238         .minor = MISC_DYNAMIC_MINOR,
10239         .name = "lpfcmgmt",
10240         .fops = &lpfc_mgmt_fop,
10241 };
10242
10243 /**
10244  * lpfc_init - lpfc module initialization routine
10245  *
10246  * This routine is to be invoked when the lpfc module is loaded into the
10247  * kernel. The special kernel macro module_init() is used to indicate the
10248  * role of this routine to the kernel as lpfc module entry point.
10249  *
10250  * Return codes
10251  *   0 - successful
10252  *   -ENOMEM - FC attach transport failed
10253  *   all others - failed
10254  */
10255 static int __init
10256 lpfc_init(void)
10257 {
10258         int error = 0;
10259
10260         printk(LPFC_MODULE_DESC "\n");
10261         printk(LPFC_COPYRIGHT "\n");
10262
10263         error = misc_register(&lpfc_mgmt_dev);
10264         if (error)
10265                 printk(KERN_ERR "Could not register lpfcmgmt device, "
10266                         "misc_register returned with status %d", error);
10267
10268         if (lpfc_enable_npiv) {
10269                 lpfc_transport_functions.vport_create = lpfc_vport_create;
10270                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
10271         }
10272         lpfc_transport_template =
10273                                 fc_attach_transport(&lpfc_transport_functions);
10274         if (lpfc_transport_template == NULL)
10275                 return -ENOMEM;
10276         if (lpfc_enable_npiv) {
10277                 lpfc_vport_transport_template =
10278                         fc_attach_transport(&lpfc_vport_transport_functions);
10279                 if (lpfc_vport_transport_template == NULL) {
10280                         fc_release_transport(lpfc_transport_template);
10281                         return -ENOMEM;
10282                 }
10283         }
10284         error = pci_register_driver(&lpfc_driver);
10285         if (error) {
10286                 fc_release_transport(lpfc_transport_template);
10287                 if (lpfc_enable_npiv)
10288                         fc_release_transport(lpfc_vport_transport_template);
10289         }
10290
10291         return error;
10292 }
10293
10294 /**
10295  * lpfc_exit - lpfc module removal routine
10296  *
10297  * This routine is invoked when the lpfc module is removed from the kernel.
10298  * The special kernel macro module_exit() is used to indicate the role of
10299  * this routine to the kernel as lpfc module exit point.
10300  */
10301 static void __exit
10302 lpfc_exit(void)
10303 {
10304         misc_deregister(&lpfc_mgmt_dev);
10305         pci_unregister_driver(&lpfc_driver);
10306         fc_release_transport(lpfc_transport_template);
10307         if (lpfc_enable_npiv)
10308                 fc_release_transport(lpfc_vport_transport_template);
10309         if (_dump_buf_data) {
10310                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
10311                                 "_dump_buf_data at 0x%p\n",
10312                                 (1L << _dump_buf_data_order), _dump_buf_data);
10313                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
10314         }
10315
10316         if (_dump_buf_dif) {
10317                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
10318                                 "_dump_buf_dif at 0x%p\n",
10319                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
10320                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
10321         }
10322 }
10323
10324 module_init(lpfc_init);
10325 module_exit(lpfc_exit);
10326 MODULE_LICENSE("GPL");
10327 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
10328 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
10329 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);