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_els_sgl_list(struct lpfc_hba *);
  68 static void 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 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  77 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  78
  79 static struct scsi_transport_template *lpfc_transport_template = NULL;
  80 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  81 static DEFINE_IDR(lpfc_hba_index);
  82
  83 /**
  84  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  85  * @phba: pointer to lpfc hba data structure.
  86  *
  87  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  88  * mailbox command. It retrieves the revision information from the HBA and
  89  * collects the Vital Product Data (VPD) about the HBA for preparing the
  90  * configuration of the HBA.
  91  *
  92  * Return codes:
  93  *   0 - success.
  94  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
  95  *   Any other value - indicates an error.
  96  **/
  97 int
  98 lpfc_config_port_prep(struct lpfc_hba *phba)
  99 {
 100         lpfc_vpd_t *vp = &phba->vpd;
 101         int i = 0, rc;
 102         LPFC_MBOXQ_t *pmb;
 103         MAILBOX_t *mb;
 104         char *lpfc_vpd_data = NULL;
 105         uint16_t offset = 0;
 106         static char licensed[56] =
 107                     "key unlock for use with gnu public licensed code only\0";
 108         static int init_key = 1;
 109
 110         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 111         if (!pmb) {
 112                 phba->link_state = LPFC_HBA_ERROR;
 113                 return -ENOMEM;
 114         }
 115
 116         mb = &pmb->u.mb;
 117         phba->link_state = LPFC_INIT_MBX_CMDS;
 118
 119         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 120                 if (init_key) {
 121                         uint32_t *ptext = (uint32_t *) licensed;
 122
 123                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 124                                 *ptext = cpu_to_be32(*ptext);
 125                         init_key = 0;
 126                 }
 127
 128                 lpfc_read_nv(phba, pmb);
 129                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 130                         sizeof (mb->un.varRDnvp.rsvd3));
 131                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 132                          sizeof (licensed));
 133
 134                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 135
 136                 if (rc != MBX_SUCCESS) {
 137                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 138                                         "0324 Config Port initialization "
 139                                         "error, mbxCmd x%x READ_NVPARM, "
 140                                         "mbxStatus x%x\n",
 141                                         mb->mbxCommand, mb->mbxStatus);
 142                         mempool_free(pmb, phba->mbox_mem_pool);
 143                         return -ERESTART;
 144                 }
 145                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 146                        sizeof(phba->wwnn));
 147                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 148                        sizeof(phba->wwpn));
 149         }
 150
 151         phba->sli3_options = 0x0;
 152
 153         /* Setup and issue mailbox READ REV command */
 154         lpfc_read_rev(phba, pmb);
 155         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 156         if (rc != MBX_SUCCESS) {
 157                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 158                                 "0439 Adapter failed to init, mbxCmd x%x "
 159                                 "READ_REV, mbxStatus x%x\n",
 160                                 mb->mbxCommand, mb->mbxStatus);
 161                 mempool_free( pmb, phba->mbox_mem_pool);
 162                 return -ERESTART;
 163         }
 164
 165
 166         /*
 167          * The value of rr must be 1 since the driver set the cv field to 1.
 168          * This setting requires the FW to set all revision fields.
 169          */
 170         if (mb->un.varRdRev.rr == 0) {
 171                 vp->rev.rBit = 0;
 172                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 173                                 "0440 Adapter failed to init, READ_REV has "
 174                                 "missing revision information.\n");
 175                 mempool_free(pmb, phba->mbox_mem_pool);
 176                 return -ERESTART;
 177         }
 178
 179         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 180                 mempool_free(pmb, phba->mbox_mem_pool);
 181                 return -EINVAL;
 182         }
 183
 184         /* Save information as VPD data */
 185         vp->rev.rBit = 1;
 186         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 187         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 188         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 189         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 190         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 191         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 192         vp->rev.smRev = mb->un.varRdRev.smRev;
 193         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 194         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 195         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 196         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 197         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 198         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 199         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 200         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 201
 202         /* If the sli feature level is less then 9, we must
 203          * tear down all RPIs and VPIs on link down if NPIV
 204          * is enabled.
 205          */
 206         if (vp->rev.feaLevelHigh < 9)
 207                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 208
 209         if (lpfc_is_LC_HBA(phba->pcidev->device))
 210                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 211                                                 sizeof (phba->RandomData));
 212
 213         /* Get adapter VPD information */
 214         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 215         if (!lpfc_vpd_data)
 216                 goto out_free_mbox;
 217         do {
 218                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 219                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 220
 221                 if (rc != MBX_SUCCESS) {
 222                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 223                                         "0441 VPD not present on adapter, "
 224                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 225                                         mb->mbxCommand, mb->mbxStatus);
 226                         mb->un.varDmp.word_cnt = 0;
 227                 }
 228                 /* dump mem may return a zero when finished or we got a
 229                  * mailbox error, either way we are done.
 230                  */
 231                 if (mb->un.varDmp.word_cnt == 0)
 232                         break;
 233                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 234                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 235                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 236                                       lpfc_vpd_data + offset,
 237                                       mb->un.varDmp.word_cnt);
 238                 offset += mb->un.varDmp.word_cnt;
 239         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 240         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 241
 242         kfree(lpfc_vpd_data);
 243 out_free_mbox:
 244         mempool_free(pmb, phba->mbox_mem_pool);
 245         return 0;
 246 }
 247
 248 /**
 249  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 250  * @phba: pointer to lpfc hba data structure.
 251  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 252  *
 253  * This is the completion handler for driver's configuring asynchronous event
 254  * mailbox command to the device. If the mailbox command returns successfully,
 255  * it will set internal async event support flag to 1; otherwise, it will
 256  * set internal async event support flag to 0.
 257  **/
 258 static void
 259 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 260 {
 261         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 262                 phba->temp_sensor_support = 1;
 263         else
 264                 phba->temp_sensor_support = 0;
 265         mempool_free(pmboxq, phba->mbox_mem_pool);
 266         return;
 267 }
 268
 269 /**
 270  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 271  * @phba: pointer to lpfc hba data structure.
 272  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 273  *
 274  * This is the completion handler for dump mailbox command for getting
 275  * wake up parameters. When this command complete, the response contain
 276  * Option rom version of the HBA. This function translate the version number
 277  * into a human readable string and store it in OptionROMVersion.
 278  **/
 279 static void
 280 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 281 {
 282         struct prog_id *prg;
 283         uint32_t prog_id_word;
 284         char dist = ' ';
 285         /* character array used for decoding dist type. */
 286         char dist_char[] = "nabx";
 287
 288         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 289                 mempool_free(pmboxq, phba->mbox_mem_pool);
 290                 return;
 291         }
 292
 293         prg = (struct prog_id *) &prog_id_word;
 294
 295         /* word 7 contain option rom version */
 296         prog_id_word = pmboxq->u.mb.un.varWords[7];
 297
 298         /* Decode the Option rom version word to a readable string */
 299         if (prg->dist < 4)
 300                 dist = dist_char[prg->dist];
 301
 302         if ((prg->dist == 3) && (prg->num == 0))
 303                 sprintf(phba->OptionROMVersion, "%d.%d%d",
 304                         prg->ver, prg->rev, prg->lev);
 305         else
 306                 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
 307                         prg->ver, prg->rev, prg->lev,
 308                         dist, prg->num);
 309         mempool_free(pmboxq, phba->mbox_mem_pool);
 310         return;
 311 }
 312
 313 /**
 314  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 315  *      cfg_soft_wwnn, cfg_soft_wwpn
 316  * @vport: pointer to lpfc vport data structure.
 317  *
 318  *
 319  * Return codes
 320  *   None.
 321  **/
 322 void
 323 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 324 {
 325         /* If the soft name exists then update it using the service params */
 326         if (vport->phba->cfg_soft_wwnn)
 327                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 328                            vport->fc_sparam.nodeName.u.wwn);
 329         if (vport->phba->cfg_soft_wwpn)
 330                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 331                            vport->fc_sparam.portName.u.wwn);
 332
 333         /*
 334          * If the name is empty or there exists a soft name
 335          * then copy the service params name, otherwise use the fc name
 336          */
 337         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 338                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 339                         sizeof(struct lpfc_name));
 340         else
 341                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 342                         sizeof(struct lpfc_name));
 343
 344         if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
 345                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 346                         sizeof(struct lpfc_name));
 347         else
 348                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 349                         sizeof(struct lpfc_name));
 350 }
 351
 352 /**
 353  * lpfc_config_port_post - Perform lpfc initialization after config port
 354  * @phba: pointer to lpfc hba data structure.
 355  *
 356  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 357  * command call. It performs all internal resource and state setups on the
 358  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 359  * ELS ring timers, etc.
 360  *
 361  * Return codes
 362  *   0 - success.
 363  *   Any other value - error.
 364  **/
 365 int
 366 lpfc_config_port_post(struct lpfc_hba *phba)
 367 {
 368         struct lpfc_vport *vport = phba->pport;
 369         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 370         LPFC_MBOXQ_t *pmb;
 371         MAILBOX_t *mb;
 372         struct lpfc_dmabuf *mp;
 373         struct lpfc_sli *psli = &phba->sli;
 374         uint32_t status, timeout;
 375         int i, j;
 376         int rc;
 377
 378         spin_lock_irq(&phba->hbalock);
 379         /*
 380          * If the Config port completed correctly the HBA is not
 381          * over heated any more.
 382          */
 383         if (phba->over_temp_state == HBA_OVER_TEMP)
 384                 phba->over_temp_state = HBA_NORMAL_TEMP;
 385         spin_unlock_irq(&phba->hbalock);
 386
 387         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 388         if (!pmb) {
 389                 phba->link_state = LPFC_HBA_ERROR;
 390                 return -ENOMEM;
 391         }
 392         mb = &pmb->u.mb;
 393
 394         /* Get login parameters for NID.  */
 395         rc = lpfc_read_sparam(phba, pmb, 0);
 396         if (rc) {
 397                 mempool_free(pmb, phba->mbox_mem_pool);
 398                 return -ENOMEM;
 399         }
 400
 401         pmb->vport = vport;
 402         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 403                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 404                                 "0448 Adapter failed init, mbxCmd x%x "
 405                                 "READ_SPARM mbxStatus x%x\n",
 406                                 mb->mbxCommand, mb->mbxStatus);
 407                 phba->link_state = LPFC_HBA_ERROR;
 408                 mp = (struct lpfc_dmabuf *) pmb->context1;
 409                 mempool_free(pmb, phba->mbox_mem_pool);
 410                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 411                 kfree(mp);
 412                 return -EIO;
 413         }
 414
 415         mp = (struct lpfc_dmabuf *) pmb->context1;
 416
 417         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 418         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 419         kfree(mp);
 420         pmb->context1 = NULL;
 421         lpfc_update_vport_wwn(vport);
 422
 423         /* Update the fc_host data structures with new wwn. */
 424         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 425         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 426         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 427
 428         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 429         /* This should be consolidated into parse_vpd ? - mr */
 430         if (phba->SerialNumber[0] == 0) {
 431                 uint8_t *outptr;
 432
 433                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 434                 for (i = 0; i < 12; i++) {
 435                         status = *outptr++;
 436                         j = ((status & 0xf0) >> 4);
 437                         if (j <= 9)
 438                                 phba->SerialNumber[i] =
 439                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 440                         else
 441                                 phba->SerialNumber[i] =
 442                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 443                         i++;
 444                         j = (status & 0xf);
 445                         if (j <= 9)
 446                                 phba->SerialNumber[i] =
 447                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 448                         else
 449                                 phba->SerialNumber[i] =
 450                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 451                 }
 452         }
 453
 454         lpfc_read_config(phba, pmb);
 455         pmb->vport = vport;
 456         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 457                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 458                                 "0453 Adapter failed to init, mbxCmd x%x "
 459                                 "READ_CONFIG, mbxStatus x%x\n",
 460                                 mb->mbxCommand, mb->mbxStatus);
 461                 phba->link_state = LPFC_HBA_ERROR;
 462                 mempool_free( pmb, phba->mbox_mem_pool);
 463                 return -EIO;
 464         }
 465
 466         /* Check if the port is disabled */
 467         lpfc_sli_read_link_ste(phba);
 468
 469         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 470         if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
 471                 phba->cfg_hba_queue_depth =
 472                         (mb->un.varRdConfig.max_xri + 1) -
 473                                         lpfc_sli4_get_els_iocb_cnt(phba);
 474
 475         phba->lmt = mb->un.varRdConfig.lmt;
 476
 477         /* Get the default values for Model Name and Description */
 478         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 479
 480         phba->link_state = LPFC_LINK_DOWN;
 481
 482         /* Only process IOCBs on ELS ring till hba_state is READY */
 483         if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
 484                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 485         if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
 486                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 487         if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
 488                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 489
 490         /* Post receive buffers for desired rings */
 491         if (phba->sli_rev != 3)
 492                 lpfc_post_rcv_buf(phba);
 493
 494         /*
 495          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 496          */
 497         if (phba->intr_type == MSIX) {
 498                 rc = lpfc_config_msi(phba, pmb);
 499                 if (rc) {
 500                         mempool_free(pmb, phba->mbox_mem_pool);
 501                         return -EIO;
 502                 }
 503                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 504                 if (rc != MBX_SUCCESS) {
 505                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 506                                         "0352 Config MSI mailbox command "
 507                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 508                                         pmb->u.mb.mbxCommand,
 509                                         pmb->u.mb.mbxStatus);
 510                         mempool_free(pmb, phba->mbox_mem_pool);
 511                         return -EIO;
 512                 }
 513         }
 514
 515         spin_lock_irq(&phba->hbalock);
 516         /* Initialize ERATT handling flag */
 517         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 518
 519         /* Enable appropriate host interrupts */
 520         if (lpfc_readl(phba->HCregaddr, &status)) {
 521                 spin_unlock_irq(&phba->hbalock);
 522                 return -EIO;
 523         }
 524         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 525         if (psli->num_rings > 0)
 526                 status |= HC_R0INT_ENA;
 527         if (psli->num_rings > 1)
 528                 status |= HC_R1INT_ENA;
 529         if (psli->num_rings > 2)
 530                 status |= HC_R2INT_ENA;
 531         if (psli->num_rings > 3)
 532                 status |= HC_R3INT_ENA;
 533
 534         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 535             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 536                 status &= ~(HC_R0INT_ENA);
 537
 538         writel(status, phba->HCregaddr);
 539         readl(phba->HCregaddr); /* flush */
 540         spin_unlock_irq(&phba->hbalock);
 541
 542         /* Set up ring-0 (ELS) timer */
 543         timeout = phba->fc_ratov * 2;
 544         mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
 545         /* Set up heart beat (HB) timer */
 546         mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
 547         phba->hb_outstanding = 0;
 548         phba->last_completion_time = jiffies;
 549         /* Set up error attention (ERATT) polling timer */
 550         mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
 551
 552         if (phba->hba_flag & LINK_DISABLED) {
 553                 lpfc_printf_log(phba,
 554                         KERN_ERR, LOG_INIT,
 555                         "2598 Adapter Link is disabled.\n");
 556                 lpfc_down_link(phba, pmb);
 557                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 558                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 559                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 560                         lpfc_printf_log(phba,
 561                         KERN_ERR, LOG_INIT,
 562                         "2599 Adapter failed to issue DOWN_LINK"
 563                         " mbox command rc 0x%x\n", rc);
 564
 565                         mempool_free(pmb, phba->mbox_mem_pool);
 566                         return -EIO;
 567                 }
 568         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 569                 mempool_free(pmb, phba->mbox_mem_pool);
 570                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 571                 if (rc)
 572                         return rc;
 573         }
 574         /* MBOX buffer will be freed in mbox compl */
 575         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 576         if (!pmb) {
 577                 phba->link_state = LPFC_HBA_ERROR;
 578                 return -ENOMEM;
 579         }
 580
 581         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 582         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 583         pmb->vport = phba->pport;
 584         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 585
 586         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 587                 lpfc_printf_log(phba,
 588                                 KERN_ERR,
 589                                 LOG_INIT,
 590                                 "0456 Adapter failed to issue "
 591                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 592                                 rc);
 593                 mempool_free(pmb, phba->mbox_mem_pool);
 594         }
 595
 596         /* Get Option rom version */
 597         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 598         if (!pmb) {
 599                 phba->link_state = LPFC_HBA_ERROR;
 600                 return -ENOMEM;
 601         }
 602
 603         lpfc_dump_wakeup_param(phba, pmb);
 604         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 605         pmb->vport = phba->pport;
 606         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 607
 608         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 609                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 610                                 "to get Option ROM version status x%x\n", rc);
 611                 mempool_free(pmb, phba->mbox_mem_pool);
 612         }
 613
 614         return 0;
 615 }
 616
 617 /**
 618  * lpfc_hba_init_link - Initialize the FC link
 619  * @phba: pointer to lpfc hba data structure.
 620  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 621  *
 622  * This routine will issue the INIT_LINK mailbox command call.
 623  * It is available to other drivers through the lpfc_hba data
 624  * structure for use as a delayed link up mechanism with the
 625  * module parameter lpfc_suppress_link_up.
 626  *
 627  * Return code
 628  *              0 - success
 629  *              Any other value - error
 630  **/
 631 int
 632 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 633 {
 634         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 635 }
 636
 637 /**
 638  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 639  * @phba: pointer to lpfc hba data structure.
 640  * @fc_topology: desired fc topology.
 641  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 642  *
 643  * This routine will issue the INIT_LINK mailbox command call.
 644  * It is available to other drivers through the lpfc_hba data
 645  * structure for use as a delayed link up mechanism with the
 646  * module parameter lpfc_suppress_link_up.
 647  *
 648  * Return code
 649  *              0 - success
 650  *              Any other value - error
 651  **/
 652 int
 653 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 654                                uint32_t flag)
 655 {
 656         struct lpfc_vport *vport = phba->pport;
 657         LPFC_MBOXQ_t *pmb;
 658         MAILBOX_t *mb;
 659         int rc;
 660
 661         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 662         if (!pmb) {
 663                 phba->link_state = LPFC_HBA_ERROR;
 664                 return -ENOMEM;
 665         }
 666         mb = &pmb->u.mb;
 667         pmb->vport = vport;
 668
 669         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 670             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 671              !(phba->lmt & LMT_1Gb)) ||
 672             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 673              !(phba->lmt & LMT_2Gb)) ||
 674             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 675              !(phba->lmt & LMT_4Gb)) ||
 676             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 677              !(phba->lmt & LMT_8Gb)) ||
 678             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 679              !(phba->lmt & LMT_10Gb)) ||
 680             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 681              !(phba->lmt & LMT_16Gb))) {
 682                 /* Reset link speed to auto */
 683                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 684                         "1302 Invalid speed for this board:%d "
 685                         "Reset link speed to auto.\n",
 686                         phba->cfg_link_speed);
 687                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 688         }
 689         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 690         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 691         if (phba->sli_rev < LPFC_SLI_REV4)
 692                 lpfc_set_loopback_flag(phba);
 693         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 694         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 695                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 696                         "0498 Adapter failed to init, mbxCmd x%x "
 697                         "INIT_LINK, mbxStatus x%x\n",
 698                         mb->mbxCommand, mb->mbxStatus);
 699                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 700                         /* Clear all interrupt enable conditions */
 701                         writel(0, phba->HCregaddr);
 702                         readl(phba->HCregaddr); /* flush */
 703                         /* Clear all pending interrupts */
 704                         writel(0xffffffff, phba->HAregaddr);
 705                         readl(phba->HAregaddr); /* flush */
 706                 }
 707                 phba->link_state = LPFC_HBA_ERROR;
 708                 if (rc != MBX_BUSY || flag == MBX_POLL)
 709                         mempool_free(pmb, phba->mbox_mem_pool);
 710                 return -EIO;
 711         }
 712         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 713         if (flag == MBX_POLL)
 714                 mempool_free(pmb, phba->mbox_mem_pool);
 715
 716         return 0;
 717 }
 718
 719 /**
 720  * lpfc_hba_down_link - this routine downs the FC link
 721  * @phba: pointer to lpfc hba data structure.
 722  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 723  *
 724  * This routine will issue the DOWN_LINK mailbox command call.
 725  * It is available to other drivers through the lpfc_hba data
 726  * structure for use to stop the link.
 727  *
 728  * Return code
 729  *              0 - success
 730  *              Any other value - error
 731  **/
 732 int
 733 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 734 {
 735         LPFC_MBOXQ_t *pmb;
 736         int rc;
 737
 738         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 739         if (!pmb) {
 740                 phba->link_state = LPFC_HBA_ERROR;
 741                 return -ENOMEM;
 742         }
 743
 744         lpfc_printf_log(phba,
 745                 KERN_ERR, LOG_INIT,
 746                 "0491 Adapter Link is disabled.\n");
 747         lpfc_down_link(phba, pmb);
 748         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 749         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 750         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 751                 lpfc_printf_log(phba,
 752                 KERN_ERR, LOG_INIT,
 753                 "2522 Adapter failed to issue DOWN_LINK"
 754                 " mbox command rc 0x%x\n", rc);
 755
 756                 mempool_free(pmb, phba->mbox_mem_pool);
 757                 return -EIO;
 758         }
 759         if (flag == MBX_POLL)
 760                 mempool_free(pmb, phba->mbox_mem_pool);
 761
 762         return 0;
 763 }
 764
 765 /**
 766  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 767  * @phba: pointer to lpfc HBA data structure.
 768  *
 769  * This routine will do LPFC uninitialization before the HBA is reset when
 770  * bringing down the SLI Layer.
 771  *
 772  * Return codes
 773  *   0 - success.
 774  *   Any other value - error.
 775  **/
 776 int
 777 lpfc_hba_down_prep(struct lpfc_hba *phba)
 778 {
 779         struct lpfc_vport **vports;
 780         int i;
 781
 782         if (phba->sli_rev <= LPFC_SLI_REV3) {
 783                 /* Disable interrupts */
 784                 writel(0, phba->HCregaddr);
 785                 readl(phba->HCregaddr); /* flush */
 786         }
 787
 788         if (phba->pport->load_flag & FC_UNLOADING)
 789                 lpfc_cleanup_discovery_resources(phba->pport);
 790         else {
 791                 vports = lpfc_create_vport_work_array(phba);
 792                 if (vports != NULL)
 793                         for (i = 0; i <= phba->max_vports &&
 794                                 vports[i] != NULL; i++)
 795                                 lpfc_cleanup_discovery_resources(vports[i]);
 796                 lpfc_destroy_vport_work_array(phba, vports);
 797         }
 798         return 0;
 799 }
 800
 801 /**
 802  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 803  * @phba: pointer to lpfc HBA data structure.
 804  *
 805  * This routine will do uninitialization after the HBA is reset when bring
 806  * down the SLI Layer.
 807  *
 808  * Return codes
 809  *   0 - success.
 810  *   Any other value - error.
 811  **/
 812 static int
 813 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 814 {
 815         struct lpfc_sli *psli = &phba->sli;
 816         struct lpfc_sli_ring *pring;
 817         struct lpfc_dmabuf *mp, *next_mp;
 818         LIST_HEAD(completions);
 819         int i;
 820
 821         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 822                 lpfc_sli_hbqbuf_free_all(phba);
 823         else {
 824                 /* Cleanup preposted buffers on the ELS ring */
 825                 pring = &psli->ring[LPFC_ELS_RING];
 826                 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 827                         list_del(&mp->list);
 828                         pring->postbufq_cnt--;
 829                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 830                         kfree(mp);
 831                 }
 832         }
 833
 834         spin_lock_irq(&phba->hbalock);
 835         for (i = 0; i < psli->num_rings; i++) {
 836                 pring = &psli->ring[i];
 837
 838                 /* At this point in time the HBA is either reset or DOA. Either
 839                  * way, nothing should be on txcmplq as it will NEVER complete.
 840                  */
 841                 list_splice_init(&pring->txcmplq, &completions);
 842                 pring->txcmplq_cnt = 0;
 843                 spin_unlock_irq(&phba->hbalock);
 844
 845                 /* Cancel all the IOCBs from the completions list */
 846                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 847                                       IOERR_SLI_ABORTED);
 848
 849                 lpfc_sli_abort_iocb_ring(phba, pring);
 850                 spin_lock_irq(&phba->hbalock);
 851         }
 852         spin_unlock_irq(&phba->hbalock);
 853
 854         return 0;
 855 }
 856
 857 /**
 858  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 859  * @phba: pointer to lpfc HBA data structure.
 860  *
 861  * This routine will do uninitialization after the HBA is reset when bring
 862  * down the SLI Layer.
 863  *
 864  * Return codes
 865  *   0 - success.
 866  *   Any other value - error.
 867  **/
 868 static int
 869 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 870 {
 871         struct lpfc_scsi_buf *psb, *psb_next;
 872         LIST_HEAD(aborts);
 873         int ret;
 874         unsigned long iflag = 0;
 875         struct lpfc_sglq *sglq_entry = NULL;
 876
 877         ret = lpfc_hba_down_post_s3(phba);
 878         if (ret)
 879                 return ret;
 880         /* At this point in time the HBA is either reset or DOA. Either
 881          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
 882          * on the lpfc_sgl_list so that it can either be freed if the
 883          * driver is unloading or reposted if the driver is restarting
 884          * the port.
 885          */
 886         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
 887                                         /* scsl_buf_list */
 888         /* abts_sgl_list_lock required because worker thread uses this
 889          * list.
 890          */
 891         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
 892         list_for_each_entry(sglq_entry,
 893                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
 894                 sglq_entry->state = SGL_FREED;
 895
 896         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
 897                         &phba->sli4_hba.lpfc_sgl_list);
 898         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
 899         /* abts_scsi_buf_list_lock required because worker thread uses this
 900          * list.
 901          */
 902         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 903         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
 904                         &aborts);
 905         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 906         spin_unlock_irq(&phba->hbalock);
 907
 908         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
 909                 psb->pCmd = NULL;
 910                 psb->status = IOSTAT_SUCCESS;
 911         }
 912         spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
 913         list_splice(&aborts, &phba->lpfc_scsi_buf_list);
 914         spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
 915         return 0;
 916 }
 917
 918 /**
 919  * lpfc_hba_down_post - Wrapper func for hba down post routine
 920  * @phba: pointer to lpfc HBA data structure.
 921  *
 922  * This routine wraps the actual SLI3 or SLI4 routine for performing
 923  * uninitialization after the HBA is reset when bring down the SLI Layer.
 924  *
 925  * Return codes
 926  *   0 - success.
 927  *   Any other value - error.
 928  **/
 929 int
 930 lpfc_hba_down_post(struct lpfc_hba *phba)
 931 {
 932         return (*phba->lpfc_hba_down_post)(phba);
 933 }
 934
 935 /**
 936  * lpfc_hb_timeout - The HBA-timer timeout handler
 937  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 938  *
 939  * This is the HBA-timer timeout handler registered to the lpfc driver. When
 940  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 941  * work-port-events bitmap and the worker thread is notified. This timeout
 942  * event will be used by the worker thread to invoke the actual timeout
 943  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 944  * be performed in the timeout handler and the HBA timeout event bit shall
 945  * be cleared by the worker thread after it has taken the event bitmap out.
 946  **/
 947 static void
 948 lpfc_hb_timeout(unsigned long ptr)
 949 {
 950         struct lpfc_hba *phba;
 951         uint32_t tmo_posted;
 952         unsigned long iflag;
 953
 954         phba = (struct lpfc_hba *)ptr;
 955
 956         /* Check for heart beat timeout conditions */
 957         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 958         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
 959         if (!tmo_posted)
 960                 phba->pport->work_port_events |= WORKER_HB_TMO;
 961         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 962
 963         /* Tell the worker thread there is work to do */
 964         if (!tmo_posted)
 965                 lpfc_worker_wake_up(phba);
 966         return;
 967 }
 968
 969 /**
 970  * lpfc_rrq_timeout - The RRQ-timer timeout handler
 971  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 972  *
 973  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
 974  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
 975  * work-port-events bitmap and the worker thread is notified. This timeout
 976  * event will be used by the worker thread to invoke the actual timeout
 977  * handler routine, lpfc_rrq_handler. Any periodical operations will
 978  * be performed in the timeout handler and the RRQ timeout event bit shall
 979  * be cleared by the worker thread after it has taken the event bitmap out.
 980  **/
 981 static void
 982 lpfc_rrq_timeout(unsigned long ptr)
 983 {
 984         struct lpfc_hba *phba;
 985         unsigned long iflag;
 986
 987         phba = (struct lpfc_hba *)ptr;
 988         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 989         phba->hba_flag |= HBA_RRQ_ACTIVE;
 990         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 991         lpfc_worker_wake_up(phba);
 992 }
 993
 994 /**
 995  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
 996  * @phba: pointer to lpfc hba data structure.
 997  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 998  *
 999  * This is the callback function to the lpfc heart-beat mailbox command.
1000  * If configured, the lpfc driver issues the heart-beat mailbox command to
1001  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1002  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1003  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1004  * heart-beat outstanding state. Once the mailbox command comes back and
1005  * no error conditions detected, the heart-beat mailbox command timer is
1006  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1007  * state is cleared for the next heart-beat. If the timer expired with the
1008  * heart-beat outstanding state set, the driver will put the HBA offline.
1009  **/
1010 static void
1011 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1012 {
1013         unsigned long drvr_flag;
1014
1015         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1016         phba->hb_outstanding = 0;
1017         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1018
1019         /* Check and reset heart-beat timer is necessary */
1020         mempool_free(pmboxq, phba->mbox_mem_pool);
1021         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1022                 !(phba->link_state == LPFC_HBA_ERROR) &&
1023                 !(phba->pport->load_flag & FC_UNLOADING))
1024                 mod_timer(&phba->hb_tmofunc,
1025                         jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1026         return;
1027 }
1028
1029 /**
1030  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1031  * @phba: pointer to lpfc hba data structure.
1032  *
1033  * This is the actual HBA-timer timeout handler to be invoked by the worker
1034  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1035  * handler performs any periodic operations needed for the device. If such
1036  * periodic event has already been attended to either in the interrupt handler
1037  * or by processing slow-ring or fast-ring events within the HBA-timer
1038  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1039  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1040  * is configured and there is no heart-beat mailbox command outstanding, a
1041  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1042  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1043  * to offline.
1044  **/
1045 void
1046 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1047 {
1048         struct lpfc_vport **vports;
1049         LPFC_MBOXQ_t *pmboxq;
1050         struct lpfc_dmabuf *buf_ptr;
1051         int retval, i;
1052         struct lpfc_sli *psli = &phba->sli;
1053         LIST_HEAD(completions);
1054
1055         vports = lpfc_create_vport_work_array(phba);
1056         if (vports != NULL)
1057                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1058                         lpfc_rcv_seq_check_edtov(vports[i]);
1059         lpfc_destroy_vport_work_array(phba, vports);
1060
1061         if ((phba->link_state == LPFC_HBA_ERROR) ||
1062                 (phba->pport->load_flag & FC_UNLOADING) ||
1063                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1064                 return;
1065
1066         spin_lock_irq(&phba->pport->work_port_lock);
1067
1068         if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1069                 jiffies)) {
1070                 spin_unlock_irq(&phba->pport->work_port_lock);
1071                 if (!phba->hb_outstanding)
1072                         mod_timer(&phba->hb_tmofunc,
1073                                 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1074                 else
1075                         mod_timer(&phba->hb_tmofunc,
1076                                 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1077                 return;
1078         }
1079         spin_unlock_irq(&phba->pport->work_port_lock);
1080
1081         if (phba->elsbuf_cnt &&
1082                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1083                 spin_lock_irq(&phba->hbalock);
1084                 list_splice_init(&phba->elsbuf, &completions);
1085                 phba->elsbuf_cnt = 0;
1086                 phba->elsbuf_prev_cnt = 0;
1087                 spin_unlock_irq(&phba->hbalock);
1088
1089                 while (!list_empty(&completions)) {
1090                         list_remove_head(&completions, buf_ptr,
1091                                 struct lpfc_dmabuf, list);
1092                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1093                         kfree(buf_ptr);
1094                 }
1095         }
1096         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1097
1098         /* If there is no heart beat outstanding, issue a heartbeat command */
1099         if (phba->cfg_enable_hba_heartbeat) {
1100                 if (!phba->hb_outstanding) {
1101                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1102                                 (list_empty(&psli->mboxq))) {
1103                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1104                                                         GFP_KERNEL);
1105                                 if (!pmboxq) {
1106                                         mod_timer(&phba->hb_tmofunc,
1107                                                  jiffies +
1108                                                  HZ * LPFC_HB_MBOX_INTERVAL);
1109                                         return;
1110                                 }
1111
1112                                 lpfc_heart_beat(phba, pmboxq);
1113                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1114                                 pmboxq->vport = phba->pport;
1115                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1116                                                 MBX_NOWAIT);
1117
1118                                 if (retval != MBX_BUSY &&
1119                                         retval != MBX_SUCCESS) {
1120                                         mempool_free(pmboxq,
1121                                                         phba->mbox_mem_pool);
1122                                         mod_timer(&phba->hb_tmofunc,
1123                                                 jiffies +
1124                                                 HZ * LPFC_HB_MBOX_INTERVAL);
1125                                         return;
1126                                 }
1127                                 phba->skipped_hb = 0;
1128                                 phba->hb_outstanding = 1;
1129                         } else if (time_before_eq(phba->last_completion_time,
1130                                         phba->skipped_hb)) {
1131                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1132                                         "2857 Last completion time not "
1133                                         " updated in %d ms\n",
1134                                         jiffies_to_msecs(jiffies
1135                                                  - phba->last_completion_time));
1136                         } else
1137                                 phba->skipped_hb = jiffies;
1138
1139                         mod_timer(&phba->hb_tmofunc,
1140                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1141                         return;
1142                 } else {
1143                         /*
1144                         * If heart beat timeout called with hb_outstanding set
1145                         * we need to give the hb mailbox cmd a chance to
1146                         * complete or TMO.
1147                         */
1148                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1149                                         "0459 Adapter heartbeat still out"
1150                                         "standing:last compl time was %d ms.\n",
1151                                         jiffies_to_msecs(jiffies
1152                                                  - phba->last_completion_time));
1153                         mod_timer(&phba->hb_tmofunc,
1154                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1155                 }
1156         }
1157 }
1158
1159 /**
1160  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1161  * @phba: pointer to lpfc hba data structure.
1162  *
1163  * This routine is called to bring the HBA offline when HBA hardware error
1164  * other than Port Error 6 has been detected.
1165  **/
1166 static void
1167 lpfc_offline_eratt(struct lpfc_hba *phba)
1168 {
1169         struct lpfc_sli   *psli = &phba->sli;
1170
1171         spin_lock_irq(&phba->hbalock);
1172         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1173         spin_unlock_irq(&phba->hbalock);
1174         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1175
1176         lpfc_offline(phba);
1177         lpfc_reset_barrier(phba);
1178         spin_lock_irq(&phba->hbalock);
1179         lpfc_sli_brdreset(phba);
1180         spin_unlock_irq(&phba->hbalock);
1181         lpfc_hba_down_post(phba);
1182         lpfc_sli_brdready(phba, HS_MBRDY);
1183         lpfc_unblock_mgmt_io(phba);
1184         phba->link_state = LPFC_HBA_ERROR;
1185         return;
1186 }
1187
1188 /**
1189  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1190  * @phba: pointer to lpfc hba data structure.
1191  *
1192  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1193  * other than Port Error 6 has been detected.
1194  **/
1195 static void
1196 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1197 {
1198         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1199         lpfc_offline(phba);
1200         lpfc_sli4_brdreset(phba);
1201         lpfc_hba_down_post(phba);
1202         lpfc_sli4_post_status_check(phba);
1203         lpfc_unblock_mgmt_io(phba);
1204         phba->link_state = LPFC_HBA_ERROR;
1205 }
1206
1207 /**
1208  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1209  * @phba: pointer to lpfc hba data structure.
1210  *
1211  * This routine is invoked to handle the deferred HBA hardware error
1212  * conditions. This type of error is indicated by HBA by setting ER1
1213  * and another ER bit in the host status register. The driver will
1214  * wait until the ER1 bit clears before handling the error condition.
1215  **/
1216 static void
1217 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1218 {
1219         uint32_t old_host_status = phba->work_hs;
1220         struct lpfc_sli_ring  *pring;
1221         struct lpfc_sli *psli = &phba->sli;
1222
1223         /* If the pci channel is offline, ignore possible errors,
1224          * since we cannot communicate with the pci card anyway.
1225          */
1226         if (pci_channel_offline(phba->pcidev)) {
1227                 spin_lock_irq(&phba->hbalock);
1228                 phba->hba_flag &= ~DEFER_ERATT;
1229                 spin_unlock_irq(&phba->hbalock);
1230                 return;
1231         }
1232
1233         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1234                 "0479 Deferred Adapter Hardware Error "
1235                 "Data: x%x x%x x%x\n",
1236                 phba->work_hs,
1237                 phba->work_status[0], phba->work_status[1]);
1238
1239         spin_lock_irq(&phba->hbalock);
1240         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1241         spin_unlock_irq(&phba->hbalock);
1242
1243
1244         /*
1245          * Firmware stops when it triggred erratt. That could cause the I/Os
1246          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1247          * SCSI layer retry it after re-establishing link.
1248          */
1249         pring = &psli->ring[psli->fcp_ring];
1250         lpfc_sli_abort_iocb_ring(phba, pring);
1251
1252         /*
1253          * There was a firmware error. Take the hba offline and then
1254          * attempt to restart it.
1255          */
1256         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1257         lpfc_offline(phba);
1258
1259         /* Wait for the ER1 bit to clear.*/
1260         while (phba->work_hs & HS_FFER1) {
1261                 msleep(100);
1262                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1263                         phba->work_hs = UNPLUG_ERR ;
1264                         break;
1265                 }
1266                 /* If driver is unloading let the worker thread continue */
1267                 if (phba->pport->load_flag & FC_UNLOADING) {
1268                         phba->work_hs = 0;
1269                         break;
1270                 }
1271         }
1272
1273         /*
1274          * This is to ptrotect against a race condition in which
1275          * first write to the host attention register clear the
1276          * host status register.
1277          */
1278         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1279                 phba->work_hs = old_host_status & ~HS_FFER1;
1280
1281         spin_lock_irq(&phba->hbalock);
1282         phba->hba_flag &= ~DEFER_ERATT;
1283         spin_unlock_irq(&phba->hbalock);
1284         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1285         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1286 }
1287
1288 static void
1289 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1290 {
1291         struct lpfc_board_event_header board_event;
1292         struct Scsi_Host *shost;
1293
1294         board_event.event_type = FC_REG_BOARD_EVENT;
1295         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1296         shost = lpfc_shost_from_vport(phba->pport);
1297         fc_host_post_vendor_event(shost, fc_get_event_number(),
1298                                   sizeof(board_event),
1299                                   (char *) &board_event,
1300                                   LPFC_NL_VENDOR_ID);
1301 }
1302
1303 /**
1304  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1305  * @phba: pointer to lpfc hba data structure.
1306  *
1307  * This routine is invoked to handle the following HBA hardware error
1308  * conditions:
1309  * 1 - HBA error attention interrupt
1310  * 2 - DMA ring index out of range
1311  * 3 - Mailbox command came back as unknown
1312  **/
1313 static void
1314 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1315 {
1316         struct lpfc_vport *vport = phba->pport;
1317         struct lpfc_sli   *psli = &phba->sli;
1318         struct lpfc_sli_ring  *pring;
1319         uint32_t event_data;
1320         unsigned long temperature;
1321         struct temp_event temp_event_data;
1322         struct Scsi_Host  *shost;
1323
1324         /* If the pci channel is offline, ignore possible errors,
1325          * since we cannot communicate with the pci card anyway.
1326          */
1327         if (pci_channel_offline(phba->pcidev)) {
1328                 spin_lock_irq(&phba->hbalock);
1329                 phba->hba_flag &= ~DEFER_ERATT;
1330                 spin_unlock_irq(&phba->hbalock);
1331                 return;
1332         }
1333
1334         /* If resets are disabled then leave the HBA alone and return */
1335         if (!phba->cfg_enable_hba_reset)
1336                 return;
1337
1338         /* Send an internal error event to mgmt application */
1339         lpfc_board_errevt_to_mgmt(phba);
1340
1341         if (phba->hba_flag & DEFER_ERATT)
1342                 lpfc_handle_deferred_eratt(phba);
1343
1344         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1345                 if (phba->work_hs & HS_FFER6)
1346                         /* Re-establishing Link */
1347                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1348                                         "1301 Re-establishing Link "
1349                                         "Data: x%x x%x x%x\n",
1350                                         phba->work_hs, phba->work_status[0],
1351                                         phba->work_status[1]);
1352                 if (phba->work_hs & HS_FFER8)
1353                         /* Device Zeroization */
1354                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1355                                         "2861 Host Authentication device "
1356                                         "zeroization Data:x%x x%x x%x\n",
1357                                         phba->work_hs, phba->work_status[0],
1358                                         phba->work_status[1]);
1359
1360                 spin_lock_irq(&phba->hbalock);
1361                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1362                 spin_unlock_irq(&phba->hbalock);
1363
1364                 /*
1365                 * Firmware stops when it triggled erratt with HS_FFER6.
1366                 * That could cause the I/Os dropped by the firmware.
1367                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1368                 * retry it after re-establishing link.
1369                 */
1370                 pring = &psli->ring[psli->fcp_ring];
1371                 lpfc_sli_abort_iocb_ring(phba, pring);
1372
1373                 /*
1374                  * There was a firmware error.  Take the hba offline and then
1375                  * attempt to restart it.
1376                  */
1377                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1378                 lpfc_offline(phba);
1379                 lpfc_sli_brdrestart(phba);
1380                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1381                         lpfc_unblock_mgmt_io(phba);
1382                         return;
1383                 }
1384                 lpfc_unblock_mgmt_io(phba);
1385         } else if (phba->work_hs & HS_CRIT_TEMP) {
1386                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1387                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1388                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1389                 temp_event_data.data = (uint32_t)temperature;
1390
1391                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1392                                 "0406 Adapter maximum temperature exceeded "
1393                                 "(%ld), taking this port offline "
1394                                 "Data: x%x x%x x%x\n",
1395                                 temperature, phba->work_hs,
1396                                 phba->work_status[0], phba->work_status[1]);
1397
1398                 shost = lpfc_shost_from_vport(phba->pport);
1399                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1400                                           sizeof(temp_event_data),
1401                                           (char *) &temp_event_data,
1402                                           SCSI_NL_VID_TYPE_PCI
1403                                           | PCI_VENDOR_ID_EMULEX);
1404
1405                 spin_lock_irq(&phba->hbalock);
1406                 phba->over_temp_state = HBA_OVER_TEMP;
1407                 spin_unlock_irq(&phba->hbalock);
1408                 lpfc_offline_eratt(phba);
1409
1410         } else {
1411                 /* The if clause above forces this code path when the status
1412                  * failure is a value other than FFER6. Do not call the offline
1413                  * twice. This is the adapter hardware error path.
1414                  */
1415                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1416                                 "0457 Adapter Hardware Error "
1417                                 "Data: x%x x%x x%x\n",
1418                                 phba->work_hs,
1419                                 phba->work_status[0], phba->work_status[1]);
1420
1421                 event_data = FC_REG_DUMP_EVENT;
1422                 shost = lpfc_shost_from_vport(vport);
1423                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1424                                 sizeof(event_data), (char *) &event_data,
1425                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1426
1427                 lpfc_offline_eratt(phba);
1428         }
1429         return;
1430 }
1431
1432 /**
1433  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1434  * @phba: pointer to lpfc hba data structure.
1435  * @mbx_action: flag for mailbox shutdown action.
1436  *
1437  * This routine is invoked to perform an SLI4 port PCI function reset in
1438  * response to port status register polling attention. It waits for port
1439  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1440  * During this process, interrupt vectors are freed and later requested
1441  * for handling possible port resource change.
1442  **/
1443 static int
1444 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action)
1445 {
1446         int rc;
1447         uint32_t intr_mode;
1448
1449         /*
1450          * On error status condition, driver need to wait for port
1451          * ready before performing reset.
1452          */
1453         rc = lpfc_sli4_pdev_status_reg_wait(phba);
1454         if (!rc) {
1455                 /* need reset: attempt for port recovery */
1456                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1457                                 "2887 Reset Needed: Attempting Port "
1458                                 "Recovery...\n");
1459                 lpfc_offline_prep(phba, mbx_action);
1460                 lpfc_offline(phba);
1461                 /* release interrupt for possible resource change */
1462                 lpfc_sli4_disable_intr(phba);
1463                 lpfc_sli_brdrestart(phba);
1464                 /* request and enable interrupt */
1465                 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1466                 if (intr_mode == LPFC_INTR_ERROR) {
1467                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1468                                         "3175 Failed to enable interrupt\n");
1469                         return -EIO;
1470                 } else {
1471                         phba->intr_mode = intr_mode;
1472                 }
1473                 rc = lpfc_online(phba);
1474                 if (rc == 0)
1475                         lpfc_unblock_mgmt_io(phba);
1476         }
1477         return rc;
1478 }
1479
1480 /**
1481  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1482  * @phba: pointer to lpfc hba data structure.
1483  *
1484  * This routine is invoked to handle the SLI4 HBA hardware error attention
1485  * conditions.
1486  **/
1487 static void
1488 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1489 {
1490         struct lpfc_vport *vport = phba->pport;
1491         uint32_t event_data;
1492         struct Scsi_Host *shost;
1493         uint32_t if_type;
1494         struct lpfc_register portstat_reg = {0};
1495         uint32_t reg_err1, reg_err2;
1496         uint32_t uerrlo_reg, uemasklo_reg;
1497         uint32_t pci_rd_rc1, pci_rd_rc2;
1498         int rc;
1499
1500         /* If the pci channel is offline, ignore possible errors, since
1501          * we cannot communicate with the pci card anyway.
1502          */
1503         if (pci_channel_offline(phba->pcidev))
1504                 return;
1505         /* If resets are disabled then leave the HBA alone and return */
1506         if (!phba->cfg_enable_hba_reset)
1507                 return;
1508
1509         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1510         switch (if_type) {
1511         case LPFC_SLI_INTF_IF_TYPE_0:
1512                 pci_rd_rc1 = lpfc_readl(
1513                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1514                                 &uerrlo_reg);
1515                 pci_rd_rc2 = lpfc_readl(
1516                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1517                                 &uemasklo_reg);
1518                 /* consider PCI bus read error as pci_channel_offline */
1519                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1520                         return;
1521                 lpfc_sli4_offline_eratt(phba);
1522                 break;
1523         case LPFC_SLI_INTF_IF_TYPE_2:
1524                 pci_rd_rc1 = lpfc_readl(
1525                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1526                                 &portstat_reg.word0);
1527                 /* consider PCI bus read error as pci_channel_offline */
1528                 if (pci_rd_rc1 == -EIO) {
1529                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1530                                 "3151 PCI bus read access failure: x%x\n",
1531                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1532                         return;
1533                 }
1534                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1535                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1536                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1537                         /* TODO: Register for Overtemp async events. */
1538                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1539                                 "2889 Port Overtemperature event, "
1540                                 "taking port offline\n");
1541                         spin_lock_irq(&phba->hbalock);
1542                         phba->over_temp_state = HBA_OVER_TEMP;
1543                         spin_unlock_irq(&phba->hbalock);
1544                         lpfc_sli4_offline_eratt(phba);
1545                         break;
1546                 }
1547                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1548                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART)
1549                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1550                                         "3143 Port Down: Firmware Restarted\n");
1551                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1552                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1553                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1554                                         "3144 Port Down: Debug Dump\n");
1555                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1556                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1557                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1558                                         "3145 Port Down: Provisioning\n");
1559
1560                 /* Check port status register for function reset */
1561                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT);
1562                 if (rc == 0) {
1563                         /* don't report event on forced debug dump */
1564                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1565                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1566                                 return;
1567                         else
1568                                 break;
1569                 }
1570                 /* fall through for not able to recover */
1571                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1572                                 "3152 Unrecoverable error, bring the port "
1573                                 "offline\n");
1574                 lpfc_sli4_offline_eratt(phba);
1575                 break;
1576         case LPFC_SLI_INTF_IF_TYPE_1:
1577         default:
1578                 break;
1579         }
1580         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1581                         "3123 Report dump event to upper layer\n");
1582         /* Send an internal error event to mgmt application */
1583         lpfc_board_errevt_to_mgmt(phba);
1584
1585         event_data = FC_REG_DUMP_EVENT;
1586         shost = lpfc_shost_from_vport(vport);
1587         fc_host_post_vendor_event(shost, fc_get_event_number(),
1588                                   sizeof(event_data), (char *) &event_data,
1589                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1590 }
1591
1592 /**
1593  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1594  * @phba: pointer to lpfc HBA data structure.
1595  *
1596  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1597  * routine from the API jump table function pointer from the lpfc_hba struct.
1598  *
1599  * Return codes
1600  *   0 - success.
1601  *   Any other value - error.
1602  **/
1603 void
1604 lpfc_handle_eratt(struct lpfc_hba *phba)
1605 {
1606         (*phba->lpfc_handle_eratt)(phba);
1607 }
1608
1609 /**
1610  * lpfc_handle_latt - The HBA link event handler
1611  * @phba: pointer to lpfc hba data structure.
1612  *
1613  * This routine is invoked from the worker thread to handle a HBA host
1614  * attention link event.
1615  **/
1616 void
1617 lpfc_handle_latt(struct lpfc_hba *phba)
1618 {
1619         struct lpfc_vport *vport = phba->pport;
1620         struct lpfc_sli   *psli = &phba->sli;
1621         LPFC_MBOXQ_t *pmb;
1622         volatile uint32_t control;
1623         struct lpfc_dmabuf *mp;
1624         int rc = 0;
1625
1626         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1627         if (!pmb) {
1628                 rc = 1;
1629                 goto lpfc_handle_latt_err_exit;
1630         }
1631
1632         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1633         if (!mp) {
1634                 rc = 2;
1635                 goto lpfc_handle_latt_free_pmb;
1636         }
1637
1638         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1639         if (!mp->virt) {
1640                 rc = 3;
1641                 goto lpfc_handle_latt_free_mp;
1642         }
1643
1644         /* Cleanup any outstanding ELS commands */
1645         lpfc_els_flush_all_cmd(phba);
1646
1647         psli->slistat.link_event++;
1648         lpfc_read_topology(phba, pmb, mp);
1649         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1650         pmb->vport = vport;
1651         /* Block ELS IOCBs until we have processed this mbox command */
1652         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1653         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1654         if (rc == MBX_NOT_FINISHED) {
1655                 rc = 4;
1656                 goto lpfc_handle_latt_free_mbuf;
1657         }
1658
1659         /* Clear Link Attention in HA REG */
1660         spin_lock_irq(&phba->hbalock);
1661         writel(HA_LATT, phba->HAregaddr);
1662         readl(phba->HAregaddr); /* flush */
1663         spin_unlock_irq(&phba->hbalock);
1664
1665         return;
1666
1667 lpfc_handle_latt_free_mbuf:
1668         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1669         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1670 lpfc_handle_latt_free_mp:
1671         kfree(mp);
1672 lpfc_handle_latt_free_pmb:
1673         mempool_free(pmb, phba->mbox_mem_pool);
1674 lpfc_handle_latt_err_exit:
1675         /* Enable Link attention interrupts */
1676         spin_lock_irq(&phba->hbalock);
1677         psli->sli_flag |= LPFC_PROCESS_LA;
1678         control = readl(phba->HCregaddr);
1679         control |= HC_LAINT_ENA;
1680         writel(control, phba->HCregaddr);
1681         readl(phba->HCregaddr); /* flush */
1682
1683         /* Clear Link Attention in HA REG */
1684         writel(HA_LATT, phba->HAregaddr);
1685         readl(phba->HAregaddr); /* flush */
1686         spin_unlock_irq(&phba->hbalock);
1687         lpfc_linkdown(phba);
1688         phba->link_state = LPFC_HBA_ERROR;
1689
1690         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1691                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1692
1693         return;
1694 }
1695
1696 /**
1697  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1698  * @phba: pointer to lpfc hba data structure.
1699  * @vpd: pointer to the vital product data.
1700  * @len: length of the vital product data in bytes.
1701  *
1702  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1703  * an array of characters. In this routine, the ModelName, ProgramType, and
1704  * ModelDesc, etc. fields of the phba data structure will be populated.
1705  *
1706  * Return codes
1707  *   0 - pointer to the VPD passed in is NULL
1708  *   1 - success
1709  **/
1710 int
1711 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1712 {
1713         uint8_t lenlo, lenhi;
1714         int Length;
1715         int i, j;
1716         int finished = 0;
1717         int index = 0;
1718
1719         if (!vpd)
1720                 return 0;
1721
1722         /* Vital Product */
1723         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1724                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1725                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1726                         (uint32_t) vpd[3]);
1727         while (!finished && (index < (len - 4))) {
1728                 switch (vpd[index]) {
1729                 case 0x82:
1730                 case 0x91:
1731                         index += 1;
1732                         lenlo = vpd[index];
1733                         index += 1;
1734                         lenhi = vpd[index];
1735                         index += 1;
1736                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1737                         index += i;
1738                         break;
1739                 case 0x90:
1740                         index += 1;
1741                         lenlo = vpd[index];
1742                         index += 1;
1743                         lenhi = vpd[index];
1744                         index += 1;
1745                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1746                         if (Length > len - index)
1747                                 Length = len - index;
1748                         while (Length > 0) {
1749                         /* Look for Serial Number */
1750                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1751                                 index += 2;
1752                                 i = vpd[index];
1753                                 index += 1;
1754                                 j = 0;
1755                                 Length -= (3+i);
1756                                 while(i--) {
1757                                         phba->SerialNumber[j++] = vpd[index++];
1758                                         if (j == 31)
1759                                                 break;
1760                                 }
1761                                 phba->SerialNumber[j] = 0;
1762                                 continue;
1763                         }
1764                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1765                                 phba->vpd_flag |= VPD_MODEL_DESC;
1766                                 index += 2;
1767                                 i = vpd[index];
1768                                 index += 1;
1769                                 j = 0;
1770                                 Length -= (3+i);
1771                                 while(i--) {
1772                                         phba->ModelDesc[j++] = vpd[index++];
1773                                         if (j == 255)
1774                                                 break;
1775                                 }
1776                                 phba->ModelDesc[j] = 0;
1777                                 continue;
1778                         }
1779                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1780                                 phba->vpd_flag |= VPD_MODEL_NAME;
1781                                 index += 2;
1782                                 i = vpd[index];
1783                                 index += 1;
1784                                 j = 0;
1785                                 Length -= (3+i);
1786                                 while(i--) {
1787                                         phba->ModelName[j++] = vpd[index++];
1788                                         if (j == 79)
1789                                                 break;
1790                                 }
1791                                 phba->ModelName[j] = 0;
1792                                 continue;
1793                         }
1794                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1795                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1796                                 index += 2;
1797                                 i = vpd[index];
1798                                 index += 1;
1799                                 j = 0;
1800                                 Length -= (3+i);
1801                                 while(i--) {
1802                                         phba->ProgramType[j++] = vpd[index++];
1803                                         if (j == 255)
1804                                                 break;
1805                                 }
1806                                 phba->ProgramType[j] = 0;
1807                                 continue;
1808                         }
1809                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1810                                 phba->vpd_flag |= VPD_PORT;
1811                                 index += 2;
1812                                 i = vpd[index];
1813                                 index += 1;
1814                                 j = 0;
1815                                 Length -= (3+i);
1816                                 while(i--) {
1817                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
1818                                             (phba->sli4_hba.pport_name_sta ==
1819                                              LPFC_SLI4_PPNAME_GET)) {
1820                                                 j++;
1821                                                 index++;
1822                                         } else
1823                                                 phba->Port[j++] = vpd[index++];
1824                                         if (j == 19)
1825                                                 break;
1826                                 }
1827                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1828                                     (phba->sli4_hba.pport_name_sta ==
1829                                      LPFC_SLI4_PPNAME_NON))
1830                                         phba->Port[j] = 0;
1831                                 continue;
1832                         }
1833                         else {
1834                                 index += 2;
1835                                 i = vpd[index];
1836                                 index += 1;
1837                                 index += i;
1838                                 Length -= (3 + i);
1839                         }
1840                 }
1841                 finished = 0;
1842                 break;
1843                 case 0x78:
1844                         finished = 1;
1845                         break;
1846                 default:
1847                         index ++;
1848                         break;
1849                 }
1850         }
1851
1852         return(1);
1853 }
1854
1855 /**
1856  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1857  * @phba: pointer to lpfc hba data structure.
1858  * @mdp: pointer to the data structure to hold the derived model name.
1859  * @descp: pointer to the data structure to hold the derived description.
1860  *
1861  * This routine retrieves HBA's description based on its registered PCI device
1862  * ID. The @descp passed into this function points to an array of 256 chars. It
1863  * shall be returned with the model name, maximum speed, and the host bus type.
1864  * The @mdp passed into this function points to an array of 80 chars. When the
1865  * function returns, the @mdp will be filled with the model name.
1866  **/
1867 static void
1868 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1869 {
1870         lpfc_vpd_t *vp;
1871         uint16_t dev_id = phba->pcidev->device;
1872         int max_speed;
1873         int GE = 0;
1874         int oneConnect = 0; /* default is not a oneConnect */
1875         struct {
1876                 char *name;
1877                 char *bus;
1878                 char *function;
1879         } m = {"<Unknown>", "", ""};
1880
1881         if (mdp && mdp[0] != '\0'
1882                 && descp && descp[0] != '\0')
1883                 return;
1884
1885         if (phba->lmt & LMT_16Gb)
1886                 max_speed = 16;
1887         else if (phba->lmt & LMT_10Gb)
1888                 max_speed = 10;
1889         else if (phba->lmt & LMT_8Gb)
1890                 max_speed = 8;
1891         else if (phba->lmt & LMT_4Gb)
1892                 max_speed = 4;
1893         else if (phba->lmt & LMT_2Gb)
1894                 max_speed = 2;
1895         else
1896                 max_speed = 1;
1897
1898         vp = &phba->vpd;
1899
1900         switch (dev_id) {
1901         case PCI_DEVICE_ID_FIREFLY:
1902                 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1903                 break;
1904         case PCI_DEVICE_ID_SUPERFLY:
1905                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1906                         m = (typeof(m)){"LP7000", "PCI",
1907                                         "Fibre Channel Adapter"};
1908                 else
1909                         m = (typeof(m)){"LP7000E", "PCI",
1910                                         "Fibre Channel Adapter"};
1911                 break;
1912         case PCI_DEVICE_ID_DRAGONFLY:
1913                 m = (typeof(m)){"LP8000", "PCI",
1914                                 "Fibre Channel Adapter"};
1915                 break;
1916         case PCI_DEVICE_ID_CENTAUR:
1917                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1918                         m = (typeof(m)){"LP9002", "PCI",
1919                                         "Fibre Channel Adapter"};
1920                 else
1921                         m = (typeof(m)){"LP9000", "PCI",
1922                                         "Fibre Channel Adapter"};
1923                 break;
1924         case PCI_DEVICE_ID_RFLY:
1925                 m = (typeof(m)){"LP952", "PCI",
1926                                 "Fibre Channel Adapter"};
1927                 break;
1928         case PCI_DEVICE_ID_PEGASUS:
1929                 m = (typeof(m)){"LP9802", "PCI-X",
1930                                 "Fibre Channel Adapter"};
1931                 break;
1932         case PCI_DEVICE_ID_THOR:
1933                 m = (typeof(m)){"LP10000", "PCI-X",
1934                                 "Fibre Channel Adapter"};
1935                 break;
1936         case PCI_DEVICE_ID_VIPER:
1937                 m = (typeof(m)){"LPX1000",  "PCI-X",
1938                                 "Fibre Channel Adapter"};
1939                 break;
1940         case PCI_DEVICE_ID_PFLY:
1941                 m = (typeof(m)){"LP982", "PCI-X",
1942                                 "Fibre Channel Adapter"};
1943                 break;
1944         case PCI_DEVICE_ID_TFLY:
1945                 m = (typeof(m)){"LP1050", "PCI-X",
1946                                 "Fibre Channel Adapter"};
1947                 break;
1948         case PCI_DEVICE_ID_HELIOS:
1949                 m = (typeof(m)){"LP11000", "PCI-X2",
1950                                 "Fibre Channel Adapter"};
1951                 break;
1952         case PCI_DEVICE_ID_HELIOS_SCSP:
1953                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1954                                 "Fibre Channel Adapter"};
1955                 break;
1956         case PCI_DEVICE_ID_HELIOS_DCSP:
1957                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
1958                                 "Fibre Channel Adapter"};
1959                 break;
1960         case PCI_DEVICE_ID_NEPTUNE:
1961                 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1962                 break;
1963         case PCI_DEVICE_ID_NEPTUNE_SCSP:
1964                 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1965                 break;
1966         case PCI_DEVICE_ID_NEPTUNE_DCSP:
1967                 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1968                 break;
1969         case PCI_DEVICE_ID_BMID:
1970                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1971                 break;
1972         case PCI_DEVICE_ID_BSMB:
1973                 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1974                 break;
1975         case PCI_DEVICE_ID_ZEPHYR:
1976                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1977                 break;
1978         case PCI_DEVICE_ID_ZEPHYR_SCSP:
1979                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1980                 break;
1981         case PCI_DEVICE_ID_ZEPHYR_DCSP:
1982                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1983                 GE = 1;
1984                 break;
1985         case PCI_DEVICE_ID_ZMID:
1986                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1987                 break;
1988         case PCI_DEVICE_ID_ZSMB:
1989                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1990                 break;
1991         case PCI_DEVICE_ID_LP101:
1992                 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1993                 break;
1994         case PCI_DEVICE_ID_LP10000S:
1995                 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1996                 break;
1997         case PCI_DEVICE_ID_LP11000S:
1998                 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1999                 break;
2000         case PCI_DEVICE_ID_LPE11000S:
2001                 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
2002                 break;
2003         case PCI_DEVICE_ID_SAT:
2004                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2005                 break;
2006         case PCI_DEVICE_ID_SAT_MID:
2007                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2008                 break;
2009         case PCI_DEVICE_ID_SAT_SMB:
2010                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2011                 break;
2012         case PCI_DEVICE_ID_SAT_DCSP:
2013                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2014                 break;
2015         case PCI_DEVICE_ID_SAT_SCSP:
2016                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2017                 break;
2018         case PCI_DEVICE_ID_SAT_S:
2019                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2020                 break;
2021         case PCI_DEVICE_ID_HORNET:
2022                 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
2023                 GE = 1;
2024                 break;
2025         case PCI_DEVICE_ID_PROTEUS_VF:
2026                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2027                                 "Fibre Channel Adapter"};
2028                 break;
2029         case PCI_DEVICE_ID_PROTEUS_PF:
2030                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2031                                 "Fibre Channel Adapter"};
2032                 break;
2033         case PCI_DEVICE_ID_PROTEUS_S:
2034                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2035                                 "Fibre Channel Adapter"};
2036                 break;
2037         case PCI_DEVICE_ID_TIGERSHARK:
2038                 oneConnect = 1;
2039                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2040                 break;
2041         case PCI_DEVICE_ID_TOMCAT:
2042                 oneConnect = 1;
2043                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2044                 break;
2045         case PCI_DEVICE_ID_FALCON:
2046                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2047                                 "EmulexSecure Fibre"};
2048                 break;
2049         case PCI_DEVICE_ID_BALIUS:
2050                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2051                                 "Fibre Channel Adapter"};
2052                 break;
2053         case PCI_DEVICE_ID_LANCER_FC:
2054         case PCI_DEVICE_ID_LANCER_FC_VF:
2055                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2056                 break;
2057         case PCI_DEVICE_ID_LANCER_FCOE:
2058         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2059                 oneConnect = 1;
2060                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2061                 break;
2062         case PCI_DEVICE_ID_SKYHAWK:
2063         case PCI_DEVICE_ID_SKYHAWK_VF:
2064                 oneConnect = 1;
2065                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2066                 break;
2067         default:
2068                 m = (typeof(m)){"Unknown", "", ""};
2069                 break;
2070         }
2071
2072         if (mdp && mdp[0] == '\0')
2073                 snprintf(mdp, 79,"%s", m.name);
2074         /*
2075          * oneConnect hba requires special processing, they are all initiators
2076          * and we put the port number on the end
2077          */
2078         if (descp && descp[0] == '\0') {
2079                 if (oneConnect)
2080                         snprintf(descp, 255,
2081                                 "Emulex OneConnect %s, %s Initiator, Port %s",
2082                                 m.name, m.function,
2083                                 phba->Port);
2084                 else
2085                         snprintf(descp, 255,
2086                                 "Emulex %s %d%s %s %s",
2087                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2088                                 m.bus, m.function);
2089         }
2090 }
2091
2092 /**
2093  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2094  * @phba: pointer to lpfc hba data structure.
2095  * @pring: pointer to a IOCB ring.
2096  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2097  *
2098  * This routine posts a given number of IOCBs with the associated DMA buffer
2099  * descriptors specified by the cnt argument to the given IOCB ring.
2100  *
2101  * Return codes
2102  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2103  **/
2104 int
2105 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2106 {
2107         IOCB_t *icmd;
2108         struct lpfc_iocbq *iocb;
2109         struct lpfc_dmabuf *mp1, *mp2;
2110
2111         cnt += pring->missbufcnt;
2112
2113         /* While there are buffers to post */
2114         while (cnt > 0) {
2115                 /* Allocate buffer for  command iocb */
2116                 iocb = lpfc_sli_get_iocbq(phba);
2117                 if (iocb == NULL) {
2118                         pring->missbufcnt = cnt;
2119                         return cnt;
2120                 }
2121                 icmd = &iocb->iocb;
2122
2123                 /* 2 buffers can be posted per command */
2124                 /* Allocate buffer to post */
2125                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2126                 if (mp1)
2127                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2128                 if (!mp1 || !mp1->virt) {
2129                         kfree(mp1);
2130                         lpfc_sli_release_iocbq(phba, iocb);
2131                         pring->missbufcnt = cnt;
2132                         return cnt;
2133                 }
2134
2135                 INIT_LIST_HEAD(&mp1->list);
2136                 /* Allocate buffer to post */
2137                 if (cnt > 1) {
2138                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2139                         if (mp2)
2140                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2141                                                             &mp2->phys);
2142                         if (!mp2 || !mp2->virt) {
2143                                 kfree(mp2);
2144                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2145                                 kfree(mp1);
2146                                 lpfc_sli_release_iocbq(phba, iocb);
2147                                 pring->missbufcnt = cnt;
2148                                 return cnt;
2149                         }
2150
2151                         INIT_LIST_HEAD(&mp2->list);
2152                 } else {
2153                         mp2 = NULL;
2154                 }
2155
2156                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2157                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2158                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2159                 icmd->ulpBdeCount = 1;
2160                 cnt--;
2161                 if (mp2) {
2162                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2163                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2164                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2165                         cnt--;
2166                         icmd->ulpBdeCount = 2;
2167                 }
2168
2169                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2170                 icmd->ulpLe = 1;
2171
2172                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2173                     IOCB_ERROR) {
2174                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2175                         kfree(mp1);
2176                         cnt++;
2177                         if (mp2) {
2178                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2179                                 kfree(mp2);
2180                                 cnt++;
2181                         }
2182                         lpfc_sli_release_iocbq(phba, iocb);
2183                         pring->missbufcnt = cnt;
2184                         return cnt;
2185                 }
2186                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2187                 if (mp2)
2188                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2189         }
2190         pring->missbufcnt = 0;
2191         return 0;
2192 }
2193
2194 /**
2195  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2196  * @phba: pointer to lpfc hba data structure.
2197  *
2198  * This routine posts initial receive IOCB buffers to the ELS ring. The
2199  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2200  * set to 64 IOCBs.
2201  *
2202  * Return codes
2203  *   0 - success (currently always success)
2204  **/
2205 static int
2206 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2207 {
2208         struct lpfc_sli *psli = &phba->sli;
2209
2210         /* Ring 0, ELS / CT buffers */
2211         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2212         /* Ring 2 - FCP no buffers needed */
2213
2214         return 0;
2215 }
2216
2217 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2218
2219 /**
2220  * lpfc_sha_init - Set up initial array of hash table entries
2221  * @HashResultPointer: pointer to an array as hash table.
2222  *
2223  * This routine sets up the initial values to the array of hash table entries
2224  * for the LC HBAs.
2225  **/
2226 static void
2227 lpfc_sha_init(uint32_t * HashResultPointer)
2228 {
2229         HashResultPointer[0] = 0x67452301;
2230         HashResultPointer[1] = 0xEFCDAB89;
2231         HashResultPointer[2] = 0x98BADCFE;
2232         HashResultPointer[3] = 0x10325476;
2233         HashResultPointer[4] = 0xC3D2E1F0;
2234 }
2235
2236 /**
2237  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2238  * @HashResultPointer: pointer to an initial/result hash table.
2239  * @HashWorkingPointer: pointer to an working hash table.
2240  *
2241  * This routine iterates an initial hash table pointed by @HashResultPointer
2242  * with the values from the working hash table pointeed by @HashWorkingPointer.
2243  * The results are putting back to the initial hash table, returned through
2244  * the @HashResultPointer as the result hash table.
2245  **/
2246 static void
2247 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2248 {
2249         int t;
2250         uint32_t TEMP;
2251         uint32_t A, B, C, D, E;
2252         t = 16;
2253         do {
2254                 HashWorkingPointer[t] =
2255                     S(1,
2256                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2257                                                                      8] ^
2258                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2259         } while (++t <= 79);
2260         t = 0;
2261         A = HashResultPointer[0];
2262         B = HashResultPointer[1];
2263         C = HashResultPointer[2];
2264         D = HashResultPointer[3];
2265         E = HashResultPointer[4];
2266
2267         do {
2268                 if (t < 20) {
2269                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2270                 } else if (t < 40) {
2271                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2272                 } else if (t < 60) {
2273                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2274                 } else {
2275                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2276                 }
2277                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2278                 E = D;
2279                 D = C;
2280                 C = S(30, B);
2281                 B = A;
2282                 A = TEMP;
2283         } while (++t <= 79);
2284
2285         HashResultPointer[0] += A;
2286         HashResultPointer[1] += B;
2287         HashResultPointer[2] += C;
2288         HashResultPointer[3] += D;
2289         HashResultPointer[4] += E;
2290
2291 }
2292
2293 /**
2294  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2295  * @RandomChallenge: pointer to the entry of host challenge random number array.
2296  * @HashWorking: pointer to the entry of the working hash array.
2297  *
2298  * This routine calculates the working hash array referred by @HashWorking
2299  * from the challenge random numbers associated with the host, referred by
2300  * @RandomChallenge. The result is put into the entry of the working hash
2301  * array and returned by reference through @HashWorking.
2302  **/
2303 static void
2304 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2305 {
2306         *HashWorking = (*RandomChallenge ^ *HashWorking);
2307 }
2308
2309 /**
2310  * lpfc_hba_init - Perform special handling for LC HBA initialization
2311  * @phba: pointer to lpfc hba data structure.
2312  * @hbainit: pointer to an array of unsigned 32-bit integers.
2313  *
2314  * This routine performs the special handling for LC HBA initialization.
2315  **/
2316 void
2317 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2318 {
2319         int t;
2320         uint32_t *HashWorking;
2321         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2322
2323         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2324         if (!HashWorking)
2325                 return;
2326
2327         HashWorking[0] = HashWorking[78] = *pwwnn++;
2328         HashWorking[1] = HashWorking[79] = *pwwnn;
2329
2330         for (t = 0; t < 7; t++)
2331                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2332
2333         lpfc_sha_init(hbainit);
2334         lpfc_sha_iterate(hbainit, HashWorking);
2335         kfree(HashWorking);
2336 }
2337
2338 /**
2339  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2340  * @vport: pointer to a virtual N_Port data structure.
2341  *
2342  * This routine performs the necessary cleanups before deleting the @vport.
2343  * It invokes the discovery state machine to perform necessary state
2344  * transitions and to release the ndlps associated with the @vport. Note,
2345  * the physical port is treated as @vport 0.
2346  **/
2347 void
2348 lpfc_cleanup(struct lpfc_vport *vport)
2349 {
2350         struct lpfc_hba   *phba = vport->phba;
2351         struct lpfc_nodelist *ndlp, *next_ndlp;
2352         int i = 0;
2353
2354         if (phba->link_state > LPFC_LINK_DOWN)
2355                 lpfc_port_link_failure(vport);
2356
2357         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2358                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2359                         ndlp = lpfc_enable_node(vport, ndlp,
2360                                                 NLP_STE_UNUSED_NODE);
2361                         if (!ndlp)
2362                                 continue;
2363                         spin_lock_irq(&phba->ndlp_lock);
2364                         NLP_SET_FREE_REQ(ndlp);
2365                         spin_unlock_irq(&phba->ndlp_lock);
2366                         /* Trigger the release of the ndlp memory */
2367                         lpfc_nlp_put(ndlp);
2368                         continue;
2369                 }
2370                 spin_lock_irq(&phba->ndlp_lock);
2371                 if (NLP_CHK_FREE_REQ(ndlp)) {
2372                         /* The ndlp should not be in memory free mode already */
2373                         spin_unlock_irq(&phba->ndlp_lock);
2374                         continue;
2375                 } else
2376                         /* Indicate request for freeing ndlp memory */
2377                         NLP_SET_FREE_REQ(ndlp);
2378                 spin_unlock_irq(&phba->ndlp_lock);
2379
2380                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2381                     ndlp->nlp_DID == Fabric_DID) {
2382                         /* Just free up ndlp with Fabric_DID for vports */
2383                         lpfc_nlp_put(ndlp);
2384                         continue;
2385                 }
2386
2387                 /* take care of nodes in unused state before the state
2388                  * machine taking action.
2389                  */
2390                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2391                         lpfc_nlp_put(ndlp);
2392                         continue;
2393                 }
2394
2395                 if (ndlp->nlp_type & NLP_FABRIC)
2396                         lpfc_disc_state_machine(vport, ndlp, NULL,
2397                                         NLP_EVT_DEVICE_RECOVERY);
2398
2399                 lpfc_disc_state_machine(vport, ndlp, NULL,
2400                                              NLP_EVT_DEVICE_RM);
2401         }
2402
2403         /* At this point, ALL ndlp's should be gone
2404          * because of the previous NLP_EVT_DEVICE_RM.
2405          * Lets wait for this to happen, if needed.
2406          */
2407         while (!list_empty(&vport->fc_nodes)) {
2408                 if (i++ > 3000) {
2409                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2410                                 "0233 Nodelist not empty\n");
2411                         list_for_each_entry_safe(ndlp, next_ndlp,
2412                                                 &vport->fc_nodes, nlp_listp) {
2413                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2414                                                 LOG_NODE,
2415                                                 "0282 did:x%x ndlp:x%p "
2416                                                 "usgmap:x%x refcnt:%d\n",
2417                                                 ndlp->nlp_DID, (void *)ndlp,
2418                                                 ndlp->nlp_usg_map,
2419                                                 atomic_read(
2420                                                         &ndlp->kref.refcount));
2421                         }
2422                         break;
2423                 }
2424
2425                 /* Wait for any activity on ndlps to settle */
2426                 msleep(10);
2427         }
2428         lpfc_cleanup_vports_rrqs(vport, NULL);
2429 }
2430
2431 /**
2432  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2433  * @vport: pointer to a virtual N_Port data structure.
2434  *
2435  * This routine stops all the timers associated with a @vport. This function
2436  * is invoked before disabling or deleting a @vport. Note that the physical
2437  * port is treated as @vport 0.
2438  **/
2439 void
2440 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2441 {
2442         del_timer_sync(&vport->els_tmofunc);
2443         del_timer_sync(&vport->fc_fdmitmo);
2444         del_timer_sync(&vport->delayed_disc_tmo);
2445         lpfc_can_disctmo(vport);
2446         return;
2447 }
2448
2449 /**
2450  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2451  * @phba: pointer to lpfc hba data structure.
2452  *
2453  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2454  * caller of this routine should already hold the host lock.
2455  **/
2456 void
2457 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2458 {
2459         /* Clear pending FCF rediscovery wait flag */
2460         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2461
2462         /* Now, try to stop the timer */
2463         del_timer(&phba->fcf.redisc_wait);
2464 }
2465
2466 /**
2467  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2468  * @phba: pointer to lpfc hba data structure.
2469  *
2470  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2471  * checks whether the FCF rediscovery wait timer is pending with the host
2472  * lock held before proceeding with disabling the timer and clearing the
2473  * wait timer pendig flag.
2474  **/
2475 void
2476 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2477 {
2478         spin_lock_irq(&phba->hbalock);
2479         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2480                 /* FCF rediscovery timer already fired or stopped */
2481                 spin_unlock_irq(&phba->hbalock);
2482                 return;
2483         }
2484         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2485         /* Clear failover in progress flags */
2486         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2487         spin_unlock_irq(&phba->hbalock);
2488 }
2489
2490 /**
2491  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2492  * @phba: pointer to lpfc hba data structure.
2493  *
2494  * This routine stops all the timers associated with a HBA. This function is
2495  * invoked before either putting a HBA offline or unloading the driver.
2496  **/
2497 void
2498 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2499 {
2500         lpfc_stop_vport_timers(phba->pport);
2501         del_timer_sync(&phba->sli.mbox_tmo);
2502         del_timer_sync(&phba->fabric_block_timer);
2503         del_timer_sync(&phba->eratt_poll);
2504         del_timer_sync(&phba->hb_tmofunc);
2505         if (phba->sli_rev == LPFC_SLI_REV4) {
2506                 del_timer_sync(&phba->rrq_tmr);
2507                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2508         }
2509         phba->hb_outstanding = 0;
2510
2511         switch (phba->pci_dev_grp) {
2512         case LPFC_PCI_DEV_LP:
2513                 /* Stop any LightPulse device specific driver timers */
2514                 del_timer_sync(&phba->fcp_poll_timer);
2515                 break;
2516         case LPFC_PCI_DEV_OC:
2517                 /* Stop any OneConnect device sepcific driver timers */
2518                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2519                 break;
2520         default:
2521                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2522                                 "0297 Invalid device group (x%x)\n",
2523                                 phba->pci_dev_grp);
2524                 break;
2525         }
2526         return;
2527 }
2528
2529 /**
2530  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2531  * @phba: pointer to lpfc hba data structure.
2532  *
2533  * This routine marks a HBA's management interface as blocked. Once the HBA's
2534  * management interface is marked as blocked, all the user space access to
2535  * the HBA, whether they are from sysfs interface or libdfc interface will
2536  * all be blocked. The HBA is set to block the management interface when the
2537  * driver prepares the HBA interface for online or offline.
2538  **/
2539 static void
2540 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2541 {
2542         unsigned long iflag;
2543         uint8_t actcmd = MBX_HEARTBEAT;
2544         unsigned long timeout;
2545
2546         spin_lock_irqsave(&phba->hbalock, iflag);
2547         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2548         spin_unlock_irqrestore(&phba->hbalock, iflag);
2549         if (mbx_action == LPFC_MBX_NO_WAIT)
2550                 return;
2551         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2552         spin_lock_irqsave(&phba->hbalock, iflag);
2553         if (phba->sli.mbox_active) {
2554                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2555                 /* Determine how long we might wait for the active mailbox
2556                  * command to be gracefully completed by firmware.
2557                  */
2558                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2559                                 phba->sli.mbox_active) * 1000) + jiffies;
2560         }
2561         spin_unlock_irqrestore(&phba->hbalock, iflag);
2562
2563         /* Wait for the outstnading mailbox command to complete */
2564         while (phba->sli.mbox_active) {
2565                 /* Check active mailbox complete status every 2ms */
2566                 msleep(2);
2567                 if (time_after(jiffies, timeout)) {
2568                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2569                                 "2813 Mgmt IO is Blocked %x "
2570                                 "- mbox cmd %x still active\n",
2571                                 phba->sli.sli_flag, actcmd);
2572                         break;
2573                 }
2574         }
2575 }
2576
2577 /**
2578  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2579  * @phba: pointer to lpfc hba data structure.
2580  *
2581  * Allocate RPIs for all active remote nodes. This is needed whenever
2582  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2583  * is to fixup the temporary rpi assignments.
2584  **/
2585 void
2586 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2587 {
2588         struct lpfc_nodelist  *ndlp, *next_ndlp;
2589         struct lpfc_vport **vports;
2590         int i;
2591
2592         if (phba->sli_rev != LPFC_SLI_REV4)
2593                 return;
2594
2595         vports = lpfc_create_vport_work_array(phba);
2596         if (vports != NULL) {
2597                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2598                         if (vports[i]->load_flag & FC_UNLOADING)
2599                                 continue;
2600
2601                         list_for_each_entry_safe(ndlp, next_ndlp,
2602                                                  &vports[i]->fc_nodes,
2603                                                  nlp_listp) {
2604                                 if (NLP_CHK_NODE_ACT(ndlp))
2605                                         ndlp->nlp_rpi =
2606                                                 lpfc_sli4_alloc_rpi(phba);
2607                         }
2608                 }
2609         }
2610         lpfc_destroy_vport_work_array(phba, vports);
2611 }
2612
2613 /**
2614  * lpfc_online - Initialize and bring a HBA online
2615  * @phba: pointer to lpfc hba data structure.
2616  *
2617  * This routine initializes the HBA and brings a HBA online. During this
2618  * process, the management interface is blocked to prevent user space access
2619  * to the HBA interfering with the driver initialization.
2620  *
2621  * Return codes
2622  *   0 - successful
2623  *   1 - failed
2624  **/
2625 int
2626 lpfc_online(struct lpfc_hba *phba)
2627 {
2628         struct lpfc_vport *vport;
2629         struct lpfc_vport **vports;
2630         int i;
2631
2632         if (!phba)
2633                 return 0;
2634         vport = phba->pport;
2635
2636         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2637                 return 0;
2638
2639         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2640                         "0458 Bring Adapter online\n");
2641
2642         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2643
2644         if (!lpfc_sli_queue_setup(phba)) {
2645                 lpfc_unblock_mgmt_io(phba);
2646                 return 1;
2647         }
2648
2649         if (phba->sli_rev == LPFC_SLI_REV4) {
2650                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2651                         lpfc_unblock_mgmt_io(phba);
2652                         return 1;
2653                 }
2654         } else {
2655                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2656                         lpfc_unblock_mgmt_io(phba);
2657                         return 1;
2658                 }
2659         }
2660
2661         vports = lpfc_create_vport_work_array(phba);
2662         if (vports != NULL)
2663                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2664                         struct Scsi_Host *shost;
2665                         shost = lpfc_shost_from_vport(vports[i]);
2666                         spin_lock_irq(shost->host_lock);
2667                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2668                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2669                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2670                         if (phba->sli_rev == LPFC_SLI_REV4)
2671                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2672                         spin_unlock_irq(shost->host_lock);
2673                 }
2674                 lpfc_destroy_vport_work_array(phba, vports);
2675
2676         lpfc_unblock_mgmt_io(phba);
2677         return 0;
2678 }
2679
2680 /**
2681  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2682  * @phba: pointer to lpfc hba data structure.
2683  *
2684  * This routine marks a HBA's management interface as not blocked. Once the
2685  * HBA's management interface is marked as not blocked, all the user space
2686  * access to the HBA, whether they are from sysfs interface or libdfc
2687  * interface will be allowed. The HBA is set to block the management interface
2688  * when the driver prepares the HBA interface for online or offline and then
2689  * set to unblock the management interface afterwards.
2690  **/
2691 void
2692 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2693 {
2694         unsigned long iflag;
2695
2696         spin_lock_irqsave(&phba->hbalock, iflag);
2697         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2698         spin_unlock_irqrestore(&phba->hbalock, iflag);
2699 }
2700
2701 /**
2702  * lpfc_offline_prep - Prepare a HBA to be brought offline
2703  * @phba: pointer to lpfc hba data structure.
2704  *
2705  * This routine is invoked to prepare a HBA to be brought offline. It performs
2706  * unregistration login to all the nodes on all vports and flushes the mailbox
2707  * queue to make it ready to be brought offline.
2708  **/
2709 void
2710 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2711 {
2712         struct lpfc_vport *vport = phba->pport;
2713         struct lpfc_nodelist  *ndlp, *next_ndlp;
2714         struct lpfc_vport **vports;
2715         struct Scsi_Host *shost;
2716         int i;
2717
2718         if (vport->fc_flag & FC_OFFLINE_MODE)
2719                 return;
2720
2721         lpfc_block_mgmt_io(phba, mbx_action);
2722
2723         lpfc_linkdown(phba);
2724
2725         /* Issue an unreg_login to all nodes on all vports */
2726         vports = lpfc_create_vport_work_array(phba);
2727         if (vports != NULL) {
2728                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2729                         if (vports[i]->load_flag & FC_UNLOADING)
2730                                 continue;
2731                         shost = lpfc_shost_from_vport(vports[i]);
2732                         spin_lock_irq(shost->host_lock);
2733                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2734                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2735                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2736                         spin_unlock_irq(shost->host_lock);
2737
2738                         shost = lpfc_shost_from_vport(vports[i]);
2739                         list_for_each_entry_safe(ndlp, next_ndlp,
2740                                                  &vports[i]->fc_nodes,
2741                                                  nlp_listp) {
2742                                 if (!NLP_CHK_NODE_ACT(ndlp))
2743                                         continue;
2744                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2745                                         continue;
2746                                 if (ndlp->nlp_type & NLP_FABRIC) {
2747                                         lpfc_disc_state_machine(vports[i], ndlp,
2748                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2749                                         lpfc_disc_state_machine(vports[i], ndlp,
2750                                                 NULL, NLP_EVT_DEVICE_RM);
2751                                 }
2752                                 spin_lock_irq(shost->host_lock);
2753                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2754                                 spin_unlock_irq(shost->host_lock);
2755                                 /*
2756                                  * Whenever an SLI4 port goes offline, free the
2757                                  * RPI. Get a new RPI when the adapter port
2758                                  * comes back online.
2759                                  */
2760                                 if (phba->sli_rev == LPFC_SLI_REV4)
2761                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2762                                 lpfc_unreg_rpi(vports[i], ndlp);
2763                         }
2764                 }
2765         }
2766         lpfc_destroy_vport_work_array(phba, vports);
2767
2768         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2769 }
2770
2771 /**
2772  * lpfc_offline - Bring a HBA offline
2773  * @phba: pointer to lpfc hba data structure.
2774  *
2775  * This routine actually brings a HBA offline. It stops all the timers
2776  * associated with the HBA, brings down the SLI layer, and eventually
2777  * marks the HBA as in offline state for the upper layer protocol.
2778  **/
2779 void
2780 lpfc_offline(struct lpfc_hba *phba)
2781 {
2782         struct Scsi_Host  *shost;
2783         struct lpfc_vport **vports;
2784         int i;
2785
2786         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2787                 return;
2788
2789         /* stop port and all timers associated with this hba */
2790         lpfc_stop_port(phba);
2791         vports = lpfc_create_vport_work_array(phba);
2792         if (vports != NULL)
2793                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2794                         lpfc_stop_vport_timers(vports[i]);
2795         lpfc_destroy_vport_work_array(phba, vports);
2796         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2797                         "0460 Bring Adapter offline\n");
2798         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2799            now.  */
2800         lpfc_sli_hba_down(phba);
2801         spin_lock_irq(&phba->hbalock);
2802         phba->work_ha = 0;
2803         spin_unlock_irq(&phba->hbalock);
2804         vports = lpfc_create_vport_work_array(phba);
2805         if (vports != NULL)
2806                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2807                         shost = lpfc_shost_from_vport(vports[i]);
2808                         spin_lock_irq(shost->host_lock);
2809                         vports[i]->work_port_events = 0;
2810                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2811                         spin_unlock_irq(shost->host_lock);
2812                 }
2813         lpfc_destroy_vport_work_array(phba, vports);
2814 }
2815
2816 /**
2817  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2818  * @phba: pointer to lpfc hba data structure.
2819  *
2820  * This routine is to free all the SCSI buffers and IOCBs from the driver
2821  * list back to kernel. It is called from lpfc_pci_remove_one to free
2822  * the internal resources before the device is removed from the system.
2823  **/
2824 static void
2825 lpfc_scsi_free(struct lpfc_hba *phba)
2826 {
2827         struct lpfc_scsi_buf *sb, *sb_next;
2828         struct lpfc_iocbq *io, *io_next;
2829
2830         spin_lock_irq(&phba->hbalock);
2831         /* Release all the lpfc_scsi_bufs maintained by this host. */
2832         spin_lock(&phba->scsi_buf_list_lock);
2833         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2834                 list_del(&sb->list);
2835                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2836                               sb->dma_handle);
2837                 kfree(sb);
2838                 phba->total_scsi_bufs--;
2839         }
2840         spin_unlock(&phba->scsi_buf_list_lock);
2841
2842         /* Release all the lpfc_iocbq entries maintained by this host. */
2843         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2844                 list_del(&io->list);
2845                 kfree(io);
2846                 phba->total_iocbq_bufs--;
2847         }
2848
2849         spin_unlock_irq(&phba->hbalock);
2850 }
2851
2852 /**
2853  * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
2854  * @phba: pointer to lpfc hba data structure.
2855  *
2856  * This routine first calculates the sizes of the current els and allocated
2857  * scsi sgl lists, and then goes through all sgls to updates the physical
2858  * XRIs assigned due to port function reset. During port initialization, the
2859  * current els and allocated scsi sgl lists are 0s.
2860  *
2861  * Return codes
2862  *   0 - successful (for now, it always returns 0)
2863  **/
2864 int
2865 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
2866 {
2867         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
2868         struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
2869         uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
2870         LIST_HEAD(els_sgl_list);
2871         LIST_HEAD(scsi_sgl_list);
2872         int rc;
2873
2874         /*
2875          * update on pci function's els xri-sgl list
2876          */
2877         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
2878         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
2879                 /* els xri-sgl expanded */
2880                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
2881                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2882                                 "3157 ELS xri-sgl count increased from "
2883                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2884                                 els_xri_cnt);
2885                 /* allocate the additional els sgls */
2886                 for (i = 0; i < xri_cnt; i++) {
2887                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
2888                                              GFP_KERNEL);
2889                         if (sglq_entry == NULL) {
2890                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2891                                                 "2562 Failure to allocate an "
2892                                                 "ELS sgl entry:%d\n", i);
2893                                 rc = -ENOMEM;
2894                                 goto out_free_mem;
2895                         }
2896                         sglq_entry->buff_type = GEN_BUFF_TYPE;
2897                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
2898                                                            &sglq_entry->phys);
2899                         if (sglq_entry->virt == NULL) {
2900                                 kfree(sglq_entry);
2901                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2902                                                 "2563 Failure to allocate an "
2903                                                 "ELS mbuf:%d\n", i);
2904                                 rc = -ENOMEM;
2905                                 goto out_free_mem;
2906                         }
2907                         sglq_entry->sgl = sglq_entry->virt;
2908                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
2909                         sglq_entry->state = SGL_FREED;
2910                         list_add_tail(&sglq_entry->list, &els_sgl_list);
2911                 }
2912                 spin_lock(&phba->hbalock);
2913                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2914                 spin_unlock(&phba->hbalock);
2915         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
2916                 /* els xri-sgl shrinked */
2917                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
2918                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2919                                 "3158 ELS xri-sgl count decreased from "
2920                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2921                                 els_xri_cnt);
2922                 spin_lock_irq(&phba->hbalock);
2923                 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
2924                 spin_unlock_irq(&phba->hbalock);
2925                 /* release extra els sgls from list */
2926                 for (i = 0; i < xri_cnt; i++) {
2927                         list_remove_head(&els_sgl_list,
2928                                          sglq_entry, struct lpfc_sglq, list);
2929                         if (sglq_entry) {
2930                                 lpfc_mbuf_free(phba, sglq_entry->virt,
2931                                                sglq_entry->phys);
2932                                 kfree(sglq_entry);
2933                         }
2934                 }
2935                 spin_lock_irq(&phba->hbalock);
2936                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2937                 spin_unlock_irq(&phba->hbalock);
2938         } else
2939                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2940                                 "3163 ELS xri-sgl count unchanged: %d\n",
2941                                 els_xri_cnt);
2942         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
2943
2944         /* update xris to els sgls on the list */
2945         sglq_entry = NULL;
2946         sglq_entry_next = NULL;
2947         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
2948                                  &phba->sli4_hba.lpfc_sgl_list, list) {
2949                 lxri = lpfc_sli4_next_xritag(phba);
2950                 if (lxri == NO_XRI) {
2951                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2952                                         "2400 Failed to allocate xri for "
2953                                         "ELS sgl\n");
2954                         rc = -ENOMEM;
2955                         goto out_free_mem;
2956                 }
2957                 sglq_entry->sli4_lxritag = lxri;
2958                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
2959         }
2960
2961         /*
2962          * update on pci function's allocated scsi xri-sgl list
2963          */
2964         phba->total_scsi_bufs = 0;
2965
2966         /* maximum number of xris available for scsi buffers */
2967         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
2968                                       els_xri_cnt;
2969
2970         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2971                         "2401 Current allocated SCSI xri-sgl count:%d, "
2972                         "maximum  SCSI xri count:%d\n",
2973                         phba->sli4_hba.scsi_xri_cnt,
2974                         phba->sli4_hba.scsi_xri_max);
2975
2976         spin_lock_irq(&phba->scsi_buf_list_lock);
2977         list_splice_init(&phba->lpfc_scsi_buf_list, &scsi_sgl_list);
2978         spin_unlock_irq(&phba->scsi_buf_list_lock);
2979
2980         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
2981                 /* max scsi xri shrinked below the allocated scsi buffers */
2982                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
2983                                         phba->sli4_hba.scsi_xri_max;
2984                 /* release the extra allocated scsi buffers */
2985                 for (i = 0; i < scsi_xri_cnt; i++) {
2986                         list_remove_head(&scsi_sgl_list, psb,
2987                                          struct lpfc_scsi_buf, list);
2988                         pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data,
2989                                       psb->dma_handle);
2990                         kfree(psb);
2991                 }
2992                 spin_lock_irq(&phba->scsi_buf_list_lock);
2993                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
2994                 spin_unlock_irq(&phba->scsi_buf_list_lock);
2995         }
2996
2997         /* update xris associated to remaining allocated scsi buffers */
2998         psb = NULL;
2999         psb_next = NULL;
3000         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3001                 lxri = lpfc_sli4_next_xritag(phba);
3002                 if (lxri == NO_XRI) {
3003                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3004                                         "2560 Failed to allocate xri for "
3005                                         "scsi buffer\n");
3006                         rc = -ENOMEM;
3007                         goto out_free_mem;
3008                 }
3009                 psb->cur_iocbq.sli4_lxritag = lxri;
3010                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3011         }
3012         spin_lock(&phba->scsi_buf_list_lock);
3013         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list);
3014         spin_unlock(&phba->scsi_buf_list_lock);
3015
3016         return 0;
3017
3018 out_free_mem:
3019         lpfc_free_els_sgl_list(phba);
3020         lpfc_scsi_free(phba);
3021         return rc;
3022 }
3023
3024 /**
3025  * lpfc_create_port - Create an FC port
3026  * @phba: pointer to lpfc hba data structure.
3027  * @instance: a unique integer ID to this FC port.
3028  * @dev: pointer to the device data structure.
3029  *
3030  * This routine creates a FC port for the upper layer protocol. The FC port
3031  * can be created on top of either a physical port or a virtual port provided
3032  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3033  * and associates the FC port created before adding the shost into the SCSI
3034  * layer.
3035  *
3036  * Return codes
3037  *   @vport - pointer to the virtual N_Port data structure.
3038  *   NULL - port create failed.
3039  **/
3040 struct lpfc_vport *
3041 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3042 {
3043         struct lpfc_vport *vport;
3044         struct Scsi_Host  *shost;
3045         int error = 0;
3046
3047         if (dev != &phba->pcidev->dev)
3048                 shost = scsi_host_alloc(&lpfc_vport_template,
3049                                         sizeof(struct lpfc_vport));
3050         else
3051                 shost = scsi_host_alloc(&lpfc_template,
3052                                         sizeof(struct lpfc_vport));
3053         if (!shost)
3054                 goto out;
3055
3056         vport = (struct lpfc_vport *) shost->hostdata;
3057         vport->phba = phba;
3058         vport->load_flag |= FC_LOADING;
3059         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3060         vport->fc_rscn_flush = 0;
3061
3062         lpfc_get_vport_cfgparam(vport);
3063         shost->unique_id = instance;
3064         shost->max_id = LPFC_MAX_TARGET;
3065         shost->max_lun = vport->cfg_max_luns;
3066         shost->this_id = -1;
3067         shost->max_cmd_len = 16;
3068         if (phba->sli_rev == LPFC_SLI_REV4) {
3069                 shost->dma_boundary =
3070                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3071                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3072         }
3073
3074         /*
3075          * Set initial can_queue value since 0 is no longer supported and
3076          * scsi_add_host will fail. This will be adjusted later based on the
3077          * max xri value determined in hba setup.
3078          */
3079         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3080         if (dev != &phba->pcidev->dev) {
3081                 shost->transportt = lpfc_vport_transport_template;
3082                 vport->port_type = LPFC_NPIV_PORT;
3083         } else {
3084                 shost->transportt = lpfc_transport_template;
3085                 vport->port_type = LPFC_PHYSICAL_PORT;
3086         }
3087
3088         /* Initialize all internally managed lists. */
3089         INIT_LIST_HEAD(&vport->fc_nodes);
3090         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3091         spin_lock_init(&vport->work_port_lock);
3092
3093         init_timer(&vport->fc_disctmo);
3094         vport->fc_disctmo.function = lpfc_disc_timeout;
3095         vport->fc_disctmo.data = (unsigned long)vport;
3096
3097         init_timer(&vport->fc_fdmitmo);
3098         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3099         vport->fc_fdmitmo.data = (unsigned long)vport;
3100
3101         init_timer(&vport->els_tmofunc);
3102         vport->els_tmofunc.function = lpfc_els_timeout;
3103         vport->els_tmofunc.data = (unsigned long)vport;
3104
3105         init_timer(&vport->delayed_disc_tmo);
3106         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3107         vport->delayed_disc_tmo.data = (unsigned long)vport;
3108
3109         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3110         if (error)
3111                 goto out_put_shost;
3112
3113         spin_lock_irq(&phba->hbalock);
3114         list_add_tail(&vport->listentry, &phba->port_list);
3115         spin_unlock_irq(&phba->hbalock);
3116         return vport;
3117
3118 out_put_shost:
3119         scsi_host_put(shost);
3120 out:
3121         return NULL;
3122 }
3123
3124 /**
3125  * destroy_port -  destroy an FC port
3126  * @vport: pointer to an lpfc virtual N_Port data structure.
3127  *
3128  * This routine destroys a FC port from the upper layer protocol. All the
3129  * resources associated with the port are released.
3130  **/
3131 void
3132 destroy_port(struct lpfc_vport *vport)
3133 {
3134         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3135         struct lpfc_hba  *phba = vport->phba;
3136
3137         lpfc_debugfs_terminate(vport);
3138         fc_remove_host(shost);
3139         scsi_remove_host(shost);
3140
3141         spin_lock_irq(&phba->hbalock);
3142         list_del_init(&vport->listentry);
3143         spin_unlock_irq(&phba->hbalock);
3144
3145         lpfc_cleanup(vport);
3146         return;
3147 }
3148
3149 /**
3150  * lpfc_get_instance - Get a unique integer ID
3151  *
3152  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3153  * uses the kernel idr facility to perform the task.
3154  *
3155  * Return codes:
3156  *   instance - a unique integer ID allocated as the new instance.
3157  *   -1 - lpfc get instance failed.
3158  **/
3159 int
3160 lpfc_get_instance(void)
3161 {
3162         int instance = 0;
3163
3164         /* Assign an unused number */
3165         if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
3166                 return -1;
3167         if (idr_get_new(&lpfc_hba_index, NULL, &instance))
3168                 return -1;
3169         return instance;
3170 }
3171
3172 /**
3173  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3174  * @shost: pointer to SCSI host data structure.
3175  * @time: elapsed time of the scan in jiffies.
3176  *
3177  * This routine is called by the SCSI layer with a SCSI host to determine
3178  * whether the scan host is finished.
3179  *
3180  * Note: there is no scan_start function as adapter initialization will have
3181  * asynchronously kicked off the link initialization.
3182  *
3183  * Return codes
3184  *   0 - SCSI host scan is not over yet.
3185  *   1 - SCSI host scan is over.
3186  **/
3187 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3188 {
3189         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3190         struct lpfc_hba   *phba = vport->phba;
3191         int stat = 0;
3192
3193         spin_lock_irq(shost->host_lock);
3194
3195         if (vport->load_flag & FC_UNLOADING) {
3196                 stat = 1;
3197                 goto finished;
3198         }
3199         if (time >= 30 * HZ) {
3200                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3201                                 "0461 Scanning longer than 30 "
3202                                 "seconds.  Continuing initialization\n");
3203                 stat = 1;
3204                 goto finished;
3205         }
3206         if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
3207                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3208                                 "0465 Link down longer than 15 "
3209                                 "seconds.  Continuing initialization\n");
3210                 stat = 1;
3211                 goto finished;
3212         }
3213
3214         if (vport->port_state != LPFC_VPORT_READY)
3215                 goto finished;
3216         if (vport->num_disc_nodes || vport->fc_prli_sent)
3217                 goto finished;
3218         if (vport->fc_map_cnt == 0 && time < 2 * HZ)
3219                 goto finished;
3220         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3221                 goto finished;
3222
3223         stat = 1;
3224
3225 finished:
3226         spin_unlock_irq(shost->host_lock);
3227         return stat;
3228 }
3229
3230 /**
3231  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3232  * @shost: pointer to SCSI host data structure.
3233  *
3234  * This routine initializes a given SCSI host attributes on a FC port. The
3235  * SCSI host can be either on top of a physical port or a virtual port.
3236  **/
3237 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3238 {
3239         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3240         struct lpfc_hba   *phba = vport->phba;
3241         /*
3242          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3243          */
3244
3245         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3246         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3247         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3248
3249         memset(fc_host_supported_fc4s(shost), 0,
3250                sizeof(fc_host_supported_fc4s(shost)));
3251         fc_host_supported_fc4s(shost)[2] = 1;
3252         fc_host_supported_fc4s(shost)[7] = 1;
3253
3254         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3255                                  sizeof fc_host_symbolic_name(shost));
3256
3257         fc_host_supported_speeds(shost) = 0;
3258         if (phba->lmt & LMT_16Gb)
3259                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3260         if (phba->lmt & LMT_10Gb)
3261                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3262         if (phba->lmt & LMT_8Gb)
3263                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3264         if (phba->lmt & LMT_4Gb)
3265                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3266         if (phba->lmt & LMT_2Gb)
3267                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3268         if (phba->lmt & LMT_1Gb)
3269                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3270
3271         fc_host_maxframe_size(shost) =
3272                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3273                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3274
3275         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3276
3277         /* This value is also unchanging */
3278         memset(fc_host_active_fc4s(shost), 0,
3279                sizeof(fc_host_active_fc4s(shost)));
3280         fc_host_active_fc4s(shost)[2] = 1;
3281         fc_host_active_fc4s(shost)[7] = 1;
3282
3283         fc_host_max_npiv_vports(shost) = phba->max_vpi;
3284         spin_lock_irq(shost->host_lock);
3285         vport->load_flag &= ~FC_LOADING;
3286         spin_unlock_irq(shost->host_lock);
3287 }
3288
3289 /**
3290  * lpfc_stop_port_s3 - Stop SLI3 device port
3291  * @phba: pointer to lpfc hba data structure.
3292  *
3293  * This routine is invoked to stop an SLI3 device port, it stops the device
3294  * from generating interrupts and stops the device driver's timers for the
3295  * device.
3296  **/
3297 static void
3298 lpfc_stop_port_s3(struct lpfc_hba *phba)
3299 {
3300         /* Clear all interrupt enable conditions */
3301         writel(0, phba->HCregaddr);
3302         readl(phba->HCregaddr); /* flush */
3303         /* Clear all pending interrupts */
3304         writel(0xffffffff, phba->HAregaddr);
3305         readl(phba->HAregaddr); /* flush */
3306
3307         /* Reset some HBA SLI setup states */
3308         lpfc_stop_hba_timers(phba);
3309         phba->pport->work_port_events = 0;
3310 }
3311
3312 /**
3313  * lpfc_stop_port_s4 - Stop SLI4 device port
3314  * @phba: pointer to lpfc hba data structure.
3315  *
3316  * This routine is invoked to stop an SLI4 device port, it stops the device
3317  * from generating interrupts and stops the device driver's timers for the
3318  * device.
3319  **/
3320 static void
3321 lpfc_stop_port_s4(struct lpfc_hba *phba)
3322 {
3323         /* Reset some HBA SLI4 setup states */
3324         lpfc_stop_hba_timers(phba);
3325         phba->pport->work_port_events = 0;
3326         phba->sli4_hba.intr_enable = 0;
3327 }
3328
3329 /**
3330  * lpfc_stop_port - Wrapper function for stopping hba port
3331  * @phba: Pointer to HBA context object.
3332  *
3333  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3334  * the API jump table function pointer from the lpfc_hba struct.
3335  **/
3336 void
3337 lpfc_stop_port(struct lpfc_hba *phba)
3338 {
3339         phba->lpfc_stop_port(phba);
3340 }
3341
3342 /**
3343  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3344  * @phba: Pointer to hba for which this call is being executed.
3345  *
3346  * This routine starts the timer waiting for the FCF rediscovery to complete.
3347  **/
3348 void
3349 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3350 {
3351         unsigned long fcf_redisc_wait_tmo =
3352                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3353         /* Start fcf rediscovery wait period timer */
3354         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3355         spin_lock_irq(&phba->hbalock);
3356         /* Allow action to new fcf asynchronous event */
3357         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3358         /* Mark the FCF rediscovery pending state */
3359         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3360         spin_unlock_irq(&phba->hbalock);
3361 }
3362
3363 /**
3364  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3365  * @ptr: Map to lpfc_hba data structure pointer.
3366  *
3367  * This routine is invoked when waiting for FCF table rediscover has been
3368  * timed out. If new FCF record(s) has (have) been discovered during the
3369  * wait period, a new FCF event shall be added to the FCOE async event
3370  * list, and then worker thread shall be waked up for processing from the
3371  * worker thread context.
3372  **/
3373 void
3374 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3375 {
3376         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3377
3378         /* Don't send FCF rediscovery event if timer cancelled */
3379         spin_lock_irq(&phba->hbalock);
3380         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3381                 spin_unlock_irq(&phba->hbalock);
3382                 return;
3383         }
3384         /* Clear FCF rediscovery timer pending flag */
3385         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3386         /* FCF rediscovery event to worker thread */
3387         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3388         spin_unlock_irq(&phba->hbalock);
3389         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3390                         "2776 FCF rediscover quiescent timer expired\n");
3391         /* wake up worker thread */
3392         lpfc_worker_wake_up(phba);
3393 }
3394
3395 /**
3396  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3397  * @phba: pointer to lpfc hba data structure.
3398  * @acqe_link: pointer to the async link completion queue entry.
3399  *
3400  * This routine is to parse the SLI4 link-attention link fault code and
3401  * translate it into the base driver's read link attention mailbox command
3402  * status.
3403  *
3404  * Return: Link-attention status in terms of base driver's coding.
3405  **/
3406 static uint16_t
3407 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3408                            struct lpfc_acqe_link *acqe_link)
3409 {
3410         uint16_t latt_fault;
3411
3412         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3413         case LPFC_ASYNC_LINK_FAULT_NONE:
3414         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3415         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3416                 latt_fault = 0;
3417                 break;
3418         default:
3419                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3420                                 "0398 Invalid link fault code: x%x\n",
3421                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3422                 latt_fault = MBXERR_ERROR;
3423                 break;
3424         }
3425         return latt_fault;
3426 }
3427
3428 /**
3429  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3430  * @phba: pointer to lpfc hba data structure.
3431  * @acqe_link: pointer to the async link completion queue entry.
3432  *
3433  * This routine is to parse the SLI4 link attention type and translate it
3434  * into the base driver's link attention type coding.
3435  *
3436  * Return: Link attention type in terms of base driver's coding.
3437  **/
3438 static uint8_t
3439 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3440                           struct lpfc_acqe_link *acqe_link)
3441 {
3442         uint8_t att_type;
3443
3444         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3445         case LPFC_ASYNC_LINK_STATUS_DOWN:
3446         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3447                 att_type = LPFC_ATT_LINK_DOWN;
3448                 break;
3449         case LPFC_ASYNC_LINK_STATUS_UP:
3450                 /* Ignore physical link up events - wait for logical link up */
3451                 att_type = LPFC_ATT_RESERVED;
3452                 break;
3453         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3454                 att_type = LPFC_ATT_LINK_UP;
3455                 break;
3456         default:
3457                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3458                                 "0399 Invalid link attention type: x%x\n",
3459                                 bf_get(lpfc_acqe_link_status, acqe_link));
3460                 att_type = LPFC_ATT_RESERVED;
3461                 break;
3462         }
3463         return att_type;
3464 }
3465
3466 /**
3467  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3468  * @phba: pointer to lpfc hba data structure.
3469  * @acqe_link: pointer to the async link completion queue entry.
3470  *
3471  * This routine is to parse the SLI4 link-attention link speed and translate
3472  * it into the base driver's link-attention link speed coding.
3473  *
3474  * Return: Link-attention link speed in terms of base driver's coding.
3475  **/
3476 static uint8_t
3477 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3478                                 struct lpfc_acqe_link *acqe_link)
3479 {
3480         uint8_t link_speed;
3481
3482         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3483         case LPFC_ASYNC_LINK_SPEED_ZERO:
3484         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3485         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3486                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3487                 break;
3488         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3489                 link_speed = LPFC_LINK_SPEED_1GHZ;
3490                 break;
3491         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3492                 link_speed = LPFC_LINK_SPEED_10GHZ;
3493                 break;
3494         default:
3495                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3496                                 "0483 Invalid link-attention link speed: x%x\n",
3497                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3498                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3499                 break;
3500         }
3501         return link_speed;
3502 }
3503
3504 /**
3505  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3506  * @phba: pointer to lpfc hba data structure.
3507  * @acqe_link: pointer to the async link completion queue entry.
3508  *
3509  * This routine is to handle the SLI4 asynchronous FCoE link event.
3510  **/
3511 static void
3512 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3513                          struct lpfc_acqe_link *acqe_link)
3514 {
3515         struct lpfc_dmabuf *mp;
3516         LPFC_MBOXQ_t *pmb;
3517         MAILBOX_t *mb;
3518         struct lpfc_mbx_read_top *la;
3519         uint8_t att_type;
3520         int rc;
3521
3522         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3523         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3524                 return;
3525         phba->fcoe_eventtag = acqe_link->event_tag;
3526         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3527         if (!pmb) {
3528                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3529                                 "0395 The mboxq allocation failed\n");
3530                 return;
3531         }
3532         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3533         if (!mp) {
3534                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3535                                 "0396 The lpfc_dmabuf allocation failed\n");
3536                 goto out_free_pmb;
3537         }
3538         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3539         if (!mp->virt) {
3540                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3541                                 "0397 The mbuf allocation failed\n");
3542                 goto out_free_dmabuf;
3543         }
3544
3545         /* Cleanup any outstanding ELS commands */
3546         lpfc_els_flush_all_cmd(phba);
3547
3548         /* Block ELS IOCBs until we have done process link event */
3549         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3550
3551         /* Update link event statistics */
3552         phba->sli.slistat.link_event++;
3553
3554         /* Create lpfc_handle_latt mailbox command from link ACQE */
3555         lpfc_read_topology(phba, pmb, mp);
3556         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3557         pmb->vport = phba->pport;
3558
3559         /* Keep the link status for extra SLI4 state machine reference */
3560         phba->sli4_hba.link_state.speed =
3561                                 bf_get(lpfc_acqe_link_speed, acqe_link);
3562         phba->sli4_hba.link_state.duplex =
3563                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3564         phba->sli4_hba.link_state.status =
3565                                 bf_get(lpfc_acqe_link_status, acqe_link);
3566         phba->sli4_hba.link_state.type =
3567                                 bf_get(lpfc_acqe_link_type, acqe_link);
3568         phba->sli4_hba.link_state.number =
3569                                 bf_get(lpfc_acqe_link_number, acqe_link);
3570         phba->sli4_hba.link_state.fault =
3571                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3572         phba->sli4_hba.link_state.logical_speed =
3573                         bf_get(lpfc_acqe_logical_link_speed, acqe_link);
3574         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3575                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3576                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3577                         "Logical speed:%dMbps Fault:%d\n",
3578                         phba->sli4_hba.link_state.speed,
3579                         phba->sli4_hba.link_state.topology,
3580                         phba->sli4_hba.link_state.status,
3581                         phba->sli4_hba.link_state.type,
3582                         phba->sli4_hba.link_state.number,
3583                         phba->sli4_hba.link_state.logical_speed * 10,
3584                         phba->sli4_hba.link_state.fault);
3585         /*
3586          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3587          * topology info. Note: Optional for non FC-AL ports.
3588          */
3589         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3590                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3591                 if (rc == MBX_NOT_FINISHED)
3592                         goto out_free_dmabuf;
3593                 return;
3594         }
3595         /*
3596          * For FCoE Mode: fill in all the topology information we need and call
3597          * the READ_TOPOLOGY completion routine to continue without actually
3598          * sending the READ_TOPOLOGY mailbox command to the port.
3599          */
3600         /* Parse and translate status field */
3601         mb = &pmb->u.mb;
3602         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3603
3604         /* Parse and translate link attention fields */
3605         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3606         la->eventTag = acqe_link->event_tag;
3607         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3608         bf_set(lpfc_mbx_read_top_link_spd, la,
3609                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3610
3611         /* Fake the the following irrelvant fields */
3612         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3613         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3614         bf_set(lpfc_mbx_read_top_il, la, 0);
3615         bf_set(lpfc_mbx_read_top_pb, la, 0);
3616         bf_set(lpfc_mbx_read_top_fa, la, 0);
3617         bf_set(lpfc_mbx_read_top_mm, la, 0);
3618
3619         /* Invoke the lpfc_handle_latt mailbox command callback function */
3620         lpfc_mbx_cmpl_read_topology(phba, pmb);
3621
3622         return;
3623
3624 out_free_dmabuf:
3625         kfree(mp);
3626 out_free_pmb:
3627         mempool_free(pmb, phba->mbox_mem_pool);
3628 }
3629
3630 /**
3631  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3632  * @phba: pointer to lpfc hba data structure.
3633  * @acqe_fc: pointer to the async fc completion queue entry.
3634  *
3635  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3636  * that the event was received and then issue a read_topology mailbox command so
3637  * that the rest of the driver will treat it the same as SLI3.
3638  **/
3639 static void
3640 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3641 {
3642         struct lpfc_dmabuf *mp;
3643         LPFC_MBOXQ_t *pmb;
3644         int rc;
3645
3646         if (bf_get(lpfc_trailer_type, acqe_fc) !=
3647             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3648                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3649                                 "2895 Non FC link Event detected.(%d)\n",
3650                                 bf_get(lpfc_trailer_type, acqe_fc));
3651                 return;
3652         }
3653         /* Keep the link status for extra SLI4 state machine reference */
3654         phba->sli4_hba.link_state.speed =
3655                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
3656         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3657         phba->sli4_hba.link_state.topology =
3658                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3659         phba->sli4_hba.link_state.status =
3660                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3661         phba->sli4_hba.link_state.type =
3662                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3663         phba->sli4_hba.link_state.number =
3664                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3665         phba->sli4_hba.link_state.fault =
3666                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
3667         phba->sli4_hba.link_state.logical_speed =
3668                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
3669         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3670                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3671                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3672                         "%dMbps Fault:%d\n",
3673                         phba->sli4_hba.link_state.speed,
3674                         phba->sli4_hba.link_state.topology,
3675                         phba->sli4_hba.link_state.status,
3676                         phba->sli4_hba.link_state.type,
3677                         phba->sli4_hba.link_state.number,
3678                         phba->sli4_hba.link_state.logical_speed * 10,
3679                         phba->sli4_hba.link_state.fault);
3680         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3681         if (!pmb) {
3682                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3683                                 "2897 The mboxq allocation failed\n");
3684                 return;
3685         }
3686         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3687         if (!mp) {
3688                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3689                                 "2898 The lpfc_dmabuf allocation failed\n");
3690                 goto out_free_pmb;
3691         }
3692         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3693         if (!mp->virt) {
3694                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3695                                 "2899 The mbuf allocation failed\n");
3696                 goto out_free_dmabuf;
3697         }
3698
3699         /* Cleanup any outstanding ELS commands */
3700         lpfc_els_flush_all_cmd(phba);
3701
3702         /* Block ELS IOCBs until we have done process link event */
3703         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3704
3705         /* Update link event statistics */
3706         phba->sli.slistat.link_event++;
3707
3708         /* Create lpfc_handle_latt mailbox command from link ACQE */
3709         lpfc_read_topology(phba, pmb, mp);
3710         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3711         pmb->vport = phba->pport;
3712
3713         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3714         if (rc == MBX_NOT_FINISHED)
3715                 goto out_free_dmabuf;
3716         return;
3717
3718 out_free_dmabuf:
3719         kfree(mp);
3720 out_free_pmb:
3721         mempool_free(pmb, phba->mbox_mem_pool);
3722 }
3723
3724 /**
3725  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3726  * @phba: pointer to lpfc hba data structure.
3727  * @acqe_fc: pointer to the async SLI completion queue entry.
3728  *
3729  * This routine is to handle the SLI4 asynchronous SLI events.
3730  **/
3731 static void
3732 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3733 {
3734         char port_name;
3735         char message[80];
3736         uint8_t status;
3737         struct lpfc_acqe_misconfigured_event *misconfigured;
3738
3739         /* special case misconfigured event as it contains data for all ports */
3740         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
3741                  LPFC_SLI_INTF_IF_TYPE_2) ||
3742                 (bf_get(lpfc_trailer_type, acqe_sli) !=
3743                         LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) {
3744                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3745                                 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3746                                 "x%08x SLI Event Type:%d\n",
3747                                 acqe_sli->event_data1, acqe_sli->event_data2,
3748                                 bf_get(lpfc_trailer_type, acqe_sli));
3749                 return;
3750         }
3751
3752         port_name = phba->Port[0];
3753         if (port_name == 0x00)
3754                 port_name = '?'; /* get port name is empty */
3755
3756         misconfigured = (struct lpfc_acqe_misconfigured_event *)
3757                                         &acqe_sli->event_data1;
3758
3759         /* fetch the status for this port */
3760         switch (phba->sli4_hba.lnk_info.lnk_no) {
3761         case LPFC_LINK_NUMBER_0:
3762                 status = bf_get(lpfc_sli_misconfigured_port0,
3763                                         &misconfigured->theEvent);
3764                 break;
3765         case LPFC_LINK_NUMBER_1:
3766                 status = bf_get(lpfc_sli_misconfigured_port1,
3767                                         &misconfigured->theEvent);
3768                 break;
3769         case LPFC_LINK_NUMBER_2:
3770                 status = bf_get(lpfc_sli_misconfigured_port2,
3771                                         &misconfigured->theEvent);
3772                 break;
3773         case LPFC_LINK_NUMBER_3:
3774                 status = bf_get(lpfc_sli_misconfigured_port3,
3775                                         &misconfigured->theEvent);
3776                 break;
3777         default:
3778                 status = ~LPFC_SLI_EVENT_STATUS_VALID;
3779                 break;
3780         }
3781
3782         switch (status) {
3783         case LPFC_SLI_EVENT_STATUS_VALID:
3784                 return; /* no message if the sfp is okay */
3785         case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
3786                 sprintf(message, "Not installed");
3787                 break;
3788         case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
3789                 sprintf(message,
3790                         "Optics of two types installed");
3791                 break;
3792         case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
3793                 sprintf(message, "Incompatible optics");
3794                 break;
3795         default:
3796                 /* firmware is reporting a status we don't know about */
3797                 sprintf(message, "Unknown event status x%02x", status);
3798                 break;
3799         }
3800
3801         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3802                         "3176 Misconfigured Physical Port - "
3803                         "Port Name %c %s\n", port_name, message);
3804 }
3805
3806 /**
3807  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3808  * @vport: pointer to vport data structure.
3809  *
3810  * This routine is to perform Clear Virtual Link (CVL) on a vport in
3811  * response to a CVL event.
3812  *
3813  * Return the pointer to the ndlp with the vport if successful, otherwise
3814  * return NULL.
3815  **/
3816 static struct lpfc_nodelist *
3817 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3818 {
3819         struct lpfc_nodelist *ndlp;
3820         struct Scsi_Host *shost;
3821         struct lpfc_hba *phba;
3822
3823         if (!vport)
3824                 return NULL;
3825         phba = vport->phba;
3826         if (!phba)
3827                 return NULL;
3828         ndlp = lpfc_findnode_did(vport, Fabric_DID);
3829         if (!ndlp) {
3830                 /* Cannot find existing Fabric ndlp, so allocate a new one */
3831                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3832                 if (!ndlp)
3833                         return 0;
3834                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3835                 /* Set the node type */
3836                 ndlp->nlp_type |= NLP_FABRIC;
3837                 /* Put ndlp onto node list */
3838                 lpfc_enqueue_node(vport, ndlp);
3839         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3840                 /* re-setup ndlp without removing from node list */
3841                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3842                 if (!ndlp)
3843                         return 0;
3844         }
3845         if ((phba->pport->port_state < LPFC_FLOGI) &&
3846                 (phba->pport->port_state != LPFC_VPORT_FAILED))
3847                 return NULL;
3848         /* If virtual link is not yet instantiated ignore CVL */
3849         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3850                 && (vport->port_state != LPFC_VPORT_FAILED))
3851                 return NULL;
3852         shost = lpfc_shost_from_vport(vport);
3853         if (!shost)
3854                 return NULL;
3855         lpfc_linkdown_port(vport);
3856         lpfc_cleanup_pending_mbox(vport);
3857         spin_lock_irq(shost->host_lock);
3858         vport->fc_flag |= FC_VPORT_CVL_RCVD;
3859         spin_unlock_irq(shost->host_lock);
3860
3861         return ndlp;
3862 }
3863
3864 /**
3865  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3866  * @vport: pointer to lpfc hba data structure.
3867  *
3868  * This routine is to perform Clear Virtual Link (CVL) on all vports in
3869  * response to a FCF dead event.
3870  **/
3871 static void
3872 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3873 {
3874         struct lpfc_vport **vports;
3875         int i;
3876
3877         vports = lpfc_create_vport_work_array(phba);
3878         if (vports)
3879                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3880                         lpfc_sli4_perform_vport_cvl(vports[i]);
3881         lpfc_destroy_vport_work_array(phba, vports);
3882 }
3883
3884 /**
3885  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
3886  * @phba: pointer to lpfc hba data structure.
3887  * @acqe_link: pointer to the async fcoe completion queue entry.
3888  *
3889  * This routine is to handle the SLI4 asynchronous fcoe event.
3890  **/
3891 static void
3892 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
3893                         struct lpfc_acqe_fip *acqe_fip)
3894 {
3895         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
3896         int rc;
3897         struct lpfc_vport *vport;
3898         struct lpfc_nodelist *ndlp;
3899         struct Scsi_Host  *shost;
3900         int active_vlink_present;
3901         struct lpfc_vport **vports;
3902         int i;
3903
3904         phba->fc_eventTag = acqe_fip->event_tag;
3905         phba->fcoe_eventtag = acqe_fip->event_tag;
3906         switch (event_type) {
3907         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
3908         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
3909                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
3910                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3911                                         LOG_DISCOVERY,
3912                                         "2546 New FCF event, evt_tag:x%x, "
3913                                         "index:x%x\n",
3914                                         acqe_fip->event_tag,
3915                                         acqe_fip->index);
3916                 else
3917                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3918                                         LOG_DISCOVERY,
3919                                         "2788 FCF param modified event, "
3920                                         "evt_tag:x%x, index:x%x\n",
3921                                         acqe_fip->event_tag,
3922                                         acqe_fip->index);
3923                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3924                         /*
3925                          * During period of FCF discovery, read the FCF
3926                          * table record indexed by the event to update
3927                          * FCF roundrobin failover eligible FCF bmask.
3928                          */
3929                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3930                                         LOG_DISCOVERY,
3931                                         "2779 Read FCF (x%x) for updating "
3932                                         "roundrobin FCF failover bmask\n",
3933                                         acqe_fip->index);
3934                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
3935                 }
3936
3937                 /* If the FCF discovery is in progress, do nothing. */
3938                 spin_lock_irq(&phba->hbalock);
3939                 if (phba->hba_flag & FCF_TS_INPROG) {
3940                         spin_unlock_irq(&phba->hbalock);
3941                         break;
3942                 }
3943                 /* If fast FCF failover rescan event is pending, do nothing */
3944                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3945                         spin_unlock_irq(&phba->hbalock);
3946                         break;
3947                 }
3948
3949                 /* If the FCF has been in discovered state, do nothing. */
3950                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3951                         spin_unlock_irq(&phba->hbalock);
3952                         break;
3953                 }
3954                 spin_unlock_irq(&phba->hbalock);
3955
3956                 /* Otherwise, scan the entire FCF table and re-discover SAN */
3957                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3958                                 "2770 Start FCF table scan per async FCF "
3959                                 "event, evt_tag:x%x, index:x%x\n",
3960                                 acqe_fip->event_tag, acqe_fip->index);
3961                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3962                                                      LPFC_FCOE_FCF_GET_FIRST);
3963                 if (rc)
3964                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3965                                         "2547 Issue FCF scan read FCF mailbox "
3966                                         "command failed (x%x)\n", rc);
3967                 break;
3968
3969         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
3970                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3971                         "2548 FCF Table full count 0x%x tag 0x%x\n",
3972                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
3973                         acqe_fip->event_tag);
3974                 break;
3975
3976         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
3977                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
3978                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3979                         "2549 FCF (x%x) disconnected from network, "
3980                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
3981                 /*
3982                  * If we are in the middle of FCF failover process, clear
3983                  * the corresponding FCF bit in the roundrobin bitmap.
3984                  */
3985                 spin_lock_irq(&phba->hbalock);
3986                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3987                         spin_unlock_irq(&phba->hbalock);
3988                         /* Update FLOGI FCF failover eligible FCF bmask */
3989                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
3990                         break;
3991                 }
3992                 spin_unlock_irq(&phba->hbalock);
3993
3994                 /* If the event is not for currently used fcf do nothing */
3995                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
3996                         break;
3997
3998                 /*
3999                  * Otherwise, request the port to rediscover the entire FCF
4000                  * table for a fast recovery from case that the current FCF
4001                  * is no longer valid as we are not in the middle of FCF
4002                  * failover process already.
4003                  */
4004                 spin_lock_irq(&phba->hbalock);
4005                 /* Mark the fast failover process in progress */
4006                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4007                 spin_unlock_irq(&phba->hbalock);
4008
4009                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4010                                 "2771 Start FCF fast failover process due to "
4011                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4012                                 "\n", acqe_fip->event_tag, acqe_fip->index);
4013                 rc = lpfc_sli4_redisc_fcf_table(phba);
4014                 if (rc) {
4015                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4016                                         LOG_DISCOVERY,
4017                                         "2772 Issue FCF rediscover mabilbox "
4018                                         "command failed, fail through to FCF "
4019                                         "dead event\n");
4020                         spin_lock_irq(&phba->hbalock);
4021                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4022                         spin_unlock_irq(&phba->hbalock);
4023                         /*
4024                          * Last resort will fail over by treating this
4025                          * as a link down to FCF registration.
4026                          */
4027                         lpfc_sli4_fcf_dead_failthrough(phba);
4028                 } else {
4029                         /* Reset FCF roundrobin bmask for new discovery */
4030                         lpfc_sli4_clear_fcf_rr_bmask(phba);
4031                         /*
4032                          * Handling fast FCF failover to a DEAD FCF event is
4033                          * considered equalivant to receiving CVL to all vports.
4034                          */
4035                         lpfc_sli4_perform_all_vport_cvl(phba);
4036                 }
4037                 break;
4038         case LPFC_FIP_EVENT_TYPE_CVL:
4039                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4040                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4041                         "2718 Clear Virtual Link Received for VPI 0x%x"
4042                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4043
4044                 vport = lpfc_find_vport_by_vpid(phba,
4045                                                 acqe_fip->index);
4046                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4047                 if (!ndlp)
4048                         break;
4049                 active_vlink_present = 0;
4050
4051                 vports = lpfc_create_vport_work_array(phba);
4052                 if (vports) {
4053                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4054                                         i++) {
4055                                 if ((!(vports[i]->fc_flag &
4056                                         FC_VPORT_CVL_RCVD)) &&
4057                                         (vports[i]->port_state > LPFC_FDISC)) {
4058                                         active_vlink_present = 1;
4059                                         break;
4060                                 }
4061                         }
4062                         lpfc_destroy_vport_work_array(phba, vports);
4063                 }
4064
4065                 if (active_vlink_present) {
4066                         /*
4067                          * If there are other active VLinks present,
4068                          * re-instantiate the Vlink using FDISC.
4069                          */
4070                         mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
4071                         shost = lpfc_shost_from_vport(vport);
4072                         spin_lock_irq(shost->host_lock);
4073                         ndlp->nlp_flag |= NLP_DELAY_TMO;
4074                         spin_unlock_irq(shost->host_lock);
4075                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4076                         vport->port_state = LPFC_FDISC;
4077                 } else {
4078                         /*
4079                          * Otherwise, we request port to rediscover
4080                          * the entire FCF table for a fast recovery
4081                          * from possible case that the current FCF
4082                          * is no longer valid if we are not already
4083                          * in the FCF failover process.
4084                          */
4085                         spin_lock_irq(&phba->hbalock);
4086                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4087                                 spin_unlock_irq(&phba->hbalock);
4088                                 break;
4089                         }
4090                         /* Mark the fast failover process in progress */
4091                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4092                         spin_unlock_irq(&phba->hbalock);
4093                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4094                                         LOG_DISCOVERY,
4095                                         "2773 Start FCF failover per CVL, "
4096                                         "evt_tag:x%x\n", acqe_fip->event_tag);
4097                         rc = lpfc_sli4_redisc_fcf_table(phba);
4098                         if (rc) {
4099                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4100                                                 LOG_DISCOVERY,
4101                                                 "2774 Issue FCF rediscover "
4102                                                 "mabilbox command failed, "
4103                                                 "through to CVL event\n");
4104                                 spin_lock_irq(&phba->hbalock);
4105                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4106                                 spin_unlock_irq(&phba->hbalock);
4107                                 /*
4108                                  * Last resort will be re-try on the
4109                                  * the current registered FCF entry.
4110                                  */
4111                                 lpfc_retry_pport_discovery(phba);
4112                         } else
4113                                 /*
4114                                  * Reset FCF roundrobin bmask for new
4115                                  * discovery.
4116                                  */
4117                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
4118                 }
4119                 break;
4120         default:
4121                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4122                         "0288 Unknown FCoE event type 0x%x event tag "
4123                         "0x%x\n", event_type, acqe_fip->event_tag);
4124                 break;
4125         }
4126 }
4127
4128 /**
4129  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4130  * @phba: pointer to lpfc hba data structure.
4131  * @acqe_link: pointer to the async dcbx completion queue entry.
4132  *
4133  * This routine is to handle the SLI4 asynchronous dcbx event.
4134  **/
4135 static void
4136 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4137                          struct lpfc_acqe_dcbx *acqe_dcbx)
4138 {
4139         phba->fc_eventTag = acqe_dcbx->event_tag;
4140         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4141                         "0290 The SLI4 DCBX asynchronous event is not "
4142                         "handled yet\n");
4143 }
4144
4145 /**
4146  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4147  * @phba: pointer to lpfc hba data structure.
4148  * @acqe_link: pointer to the async grp5 completion queue entry.
4149  *
4150  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4151  * is an asynchronous notified of a logical link speed change.  The Port
4152  * reports the logical link speed in units of 10Mbps.
4153  **/
4154 static void
4155 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4156                          struct lpfc_acqe_grp5 *acqe_grp5)
4157 {
4158         uint16_t prev_ll_spd;
4159
4160         phba->fc_eventTag = acqe_grp5->event_tag;
4161         phba->fcoe_eventtag = acqe_grp5->event_tag;
4162         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4163         phba->sli4_hba.link_state.logical_speed =
4164                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
4165         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4166                         "2789 GRP5 Async Event: Updating logical link speed "
4167                         "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
4168                         (phba->sli4_hba.link_state.logical_speed*10));
4169 }
4170
4171 /**
4172  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4173  * @phba: pointer to lpfc hba data structure.
4174  *
4175  * This routine is invoked by the worker thread to process all the pending
4176  * SLI4 asynchronous events.
4177  **/
4178 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4179 {
4180         struct lpfc_cq_event *cq_event;
4181
4182         /* First, declare the async event has been handled */
4183         spin_lock_irq(&phba->hbalock);
4184         phba->hba_flag &= ~ASYNC_EVENT;
4185         spin_unlock_irq(&phba->hbalock);
4186         /* Now, handle all the async events */
4187         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4188                 /* Get the first event from the head of the event queue */
4189                 spin_lock_irq(&phba->hbalock);
4190                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4191                                  cq_event, struct lpfc_cq_event, list);
4192                 spin_unlock_irq(&phba->hbalock);
4193                 /* Process the asynchronous event */
4194                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4195                 case LPFC_TRAILER_CODE_LINK:
4196                         lpfc_sli4_async_link_evt(phba,
4197                                                  &cq_event->cqe.acqe_link);
4198                         break;
4199                 case LPFC_TRAILER_CODE_FCOE:
4200                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4201                         break;
4202                 case LPFC_TRAILER_CODE_DCBX:
4203                         lpfc_sli4_async_dcbx_evt(phba,
4204                                                  &cq_event->cqe.acqe_dcbx);
4205                         break;
4206                 case LPFC_TRAILER_CODE_GRP5:
4207                         lpfc_sli4_async_grp5_evt(phba,
4208                                                  &cq_event->cqe.acqe_grp5);
4209                         break;
4210                 case LPFC_TRAILER_CODE_FC:
4211                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4212                         break;
4213                 case LPFC_TRAILER_CODE_SLI:
4214                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4215                         break;
4216                 default:
4217                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4218                                         "1804 Invalid asynchrous event code: "
4219                                         "x%x\n", bf_get(lpfc_trailer_code,
4220                                         &cq_event->cqe.mcqe_cmpl));
4221                         break;
4222                 }
4223                 /* Free the completion event processed to the free pool */
4224                 lpfc_sli4_cq_event_release(phba, cq_event);
4225         }
4226 }
4227
4228 /**
4229  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4230  * @phba: pointer to lpfc hba data structure.
4231  *
4232  * This routine is invoked by the worker thread to process FCF table
4233  * rediscovery pending completion event.
4234  **/
4235 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4236 {
4237         int rc;
4238
4239         spin_lock_irq(&phba->hbalock);
4240         /* Clear FCF rediscovery timeout event */
4241         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4242         /* Clear driver fast failover FCF record flag */
4243         phba->fcf.failover_rec.flag = 0;
4244         /* Set state for FCF fast failover */
4245         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4246         spin_unlock_irq(&phba->hbalock);
4247
4248         /* Scan FCF table from the first entry to re-discover SAN */
4249         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4250                         "2777 Start post-quiescent FCF table scan\n");
4251         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4252         if (rc)
4253                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4254                                 "2747 Issue FCF scan read FCF mailbox "
4255                                 "command failed 0x%x\n", rc);
4256 }
4257
4258 /**
4259  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4260  * @phba: pointer to lpfc hba data structure.
4261  * @dev_grp: The HBA PCI-Device group number.
4262  *
4263  * This routine is invoked to set up the per HBA PCI-Device group function
4264  * API jump table entries.
4265  *
4266  * Return: 0 if success, otherwise -ENODEV
4267  **/
4268 int
4269 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4270 {
4271         int rc;
4272
4273         /* Set up lpfc PCI-device group */
4274         phba->pci_dev_grp = dev_grp;
4275
4276         /* The LPFC_PCI_DEV_OC uses SLI4 */
4277         if (dev_grp == LPFC_PCI_DEV_OC)
4278                 phba->sli_rev = LPFC_SLI_REV4;
4279
4280         /* Set up device INIT API function jump table */
4281         rc = lpfc_init_api_table_setup(phba, dev_grp);
4282         if (rc)
4283                 return -ENODEV;
4284         /* Set up SCSI API function jump table */
4285         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4286         if (rc)
4287                 return -ENODEV;
4288         /* Set up SLI API function jump table */
4289         rc = lpfc_sli_api_table_setup(phba, dev_grp);
4290         if (rc)
4291                 return -ENODEV;
4292         /* Set up MBOX API function jump table */
4293         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4294         if (rc)
4295                 return -ENODEV;
4296
4297         return 0;
4298 }
4299
4300 /**
4301  * lpfc_log_intr_mode - Log the active interrupt mode
4302  * @phba: pointer to lpfc hba data structure.
4303  * @intr_mode: active interrupt mode adopted.
4304  *
4305  * This routine it invoked to log the currently used active interrupt mode
4306  * to the device.
4307  **/
4308 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4309 {
4310         switch (intr_mode) {
4311         case 0:
4312                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4313                                 "0470 Enable INTx interrupt mode.\n");
4314                 break;
4315         case 1:
4316                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4317                                 "0481 Enabled MSI interrupt mode.\n");
4318                 break;
4319         case 2:
4320                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4321                                 "0480 Enabled MSI-X interrupt mode.\n");
4322                 break;
4323         default:
4324                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4325                                 "0482 Illegal interrupt mode.\n");
4326                 break;
4327         }
4328         return;
4329 }
4330
4331 /**
4332  * lpfc_enable_pci_dev - Enable a generic PCI device.
4333  * @phba: pointer to lpfc hba data structure.
4334  *
4335  * This routine is invoked to enable the PCI device that is common to all
4336  * PCI devices.
4337  *
4338  * Return codes
4339  *      0 - successful
4340  *      other values - error
4341  **/
4342 static int
4343 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4344 {
4345         struct pci_dev *pdev;
4346         int bars = 0;
4347
4348         /* Obtain PCI device reference */
4349         if (!phba->pcidev)
4350                 goto out_error;
4351         else
4352                 pdev = phba->pcidev;
4353         /* Select PCI BARs */
4354         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4355         /* Enable PCI device */
4356         if (pci_enable_device_mem(pdev))
4357                 goto out_error;
4358         /* Request PCI resource for the device */
4359         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4360                 goto out_disable_device;
4361         /* Set up device as PCI master and save state for EEH */
4362         pci_set_master(pdev);
4363         pci_try_set_mwi(pdev);
4364         pci_save_state(pdev);
4365
4366         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4367         if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
4368                 pdev->needs_freset = 1;
4369
4370         return 0;
4371
4372 out_disable_device:
4373         pci_disable_device(pdev);
4374 out_error:
4375         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4376                         "1401 Failed to enable pci device, bars:x%x\n", bars);
4377         return -ENODEV;
4378 }
4379
4380 /**
4381  * lpfc_disable_pci_dev - Disable a generic PCI device.
4382  * @phba: pointer to lpfc hba data structure.
4383  *
4384  * This routine is invoked to disable the PCI device that is common to all
4385  * PCI devices.
4386  **/
4387 static void
4388 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4389 {
4390         struct pci_dev *pdev;
4391         int bars;
4392
4393         /* Obtain PCI device reference */
4394         if (!phba->pcidev)
4395                 return;
4396         else
4397                 pdev = phba->pcidev;
4398         /* Select PCI BARs */
4399         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4400         /* Release PCI resource and disable PCI device */
4401         pci_release_selected_regions(pdev, bars);
4402         pci_disable_device(pdev);
4403         /* Null out PCI private reference to driver */
4404         pci_set_drvdata(pdev, NULL);
4405
4406         return;
4407 }
4408
4409 /**
4410  * lpfc_reset_hba - Reset a hba
4411  * @phba: pointer to lpfc hba data structure.
4412  *
4413  * This routine is invoked to reset a hba device. It brings the HBA
4414  * offline, performs a board restart, and then brings the board back
4415  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4416  * on outstanding mailbox commands.
4417  **/
4418 void
4419 lpfc_reset_hba(struct lpfc_hba *phba)
4420 {
4421         /* If resets are disabled then set error state and return. */
4422         if (!phba->cfg_enable_hba_reset) {
4423                 phba->link_state = LPFC_HBA_ERROR;
4424                 return;
4425         }
4426         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4427         lpfc_offline(phba);
4428         lpfc_sli_brdrestart(phba);
4429         lpfc_online(phba);
4430         lpfc_unblock_mgmt_io(phba);
4431 }
4432
4433 /**
4434  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4435  * @phba: pointer to lpfc hba data structure.
4436  *
4437  * This function enables the PCI SR-IOV virtual functions to a physical
4438  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4439  * enable the number of virtual functions to the physical function. As
4440  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4441  * API call does not considered as an error condition for most of the device.
4442  **/
4443 uint16_t
4444 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4445 {
4446         struct pci_dev *pdev = phba->pcidev;
4447         uint16_t nr_virtfn;
4448         int pos;
4449
4450         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4451         if (pos == 0)
4452                 return 0;
4453
4454         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4455         return nr_virtfn;
4456 }
4457
4458 /**
4459  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4460  * @phba: pointer to lpfc hba data structure.
4461  * @nr_vfn: number of virtual functions to be enabled.
4462  *
4463  * This function enables the PCI SR-IOV virtual functions to a physical
4464  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4465  * enable the number of virtual functions to the physical function. As
4466  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4467  * API call does not considered as an error condition for most of the device.
4468  **/
4469 int
4470 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4471 {
4472         struct pci_dev *pdev = phba->pcidev;
4473         uint16_t max_nr_vfn;
4474         int rc;
4475
4476         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4477         if (nr_vfn > max_nr_vfn) {
4478                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4479                                 "3057 Requested vfs (%d) greater than "
4480                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4481                 return -EINVAL;
4482         }
4483
4484         rc = pci_enable_sriov(pdev, nr_vfn);
4485         if (rc) {
4486                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4487                                 "2806 Failed to enable sriov on this device "
4488                                 "with vfn number nr_vf:%d, rc:%d\n",
4489                                 nr_vfn, rc);
4490         } else
4491                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4492                                 "2807 Successful enable sriov on this device "
4493                                 "with vfn number nr_vf:%d\n", nr_vfn);
4494         return rc;
4495 }
4496
4497 /**
4498  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4499  * @phba: pointer to lpfc hba data structure.
4500  *
4501  * This routine is invoked to set up the driver internal resources specific to
4502  * support the SLI-3 HBA device it attached to.
4503  *
4504  * Return codes
4505  *      0 - successful
4506  *      other values - error
4507  **/
4508 static int
4509 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4510 {
4511         struct lpfc_sli *psli;
4512         int rc;
4513
4514         /*
4515          * Initialize timers used by driver
4516          */
4517
4518         /* Heartbeat timer */
4519         init_timer(&phba->hb_tmofunc);
4520         phba->hb_tmofunc.function = lpfc_hb_timeout;
4521         phba->hb_tmofunc.data = (unsigned long)phba;
4522
4523         psli = &phba->sli;
4524         /* MBOX heartbeat timer */
4525         init_timer(&psli->mbox_tmo);
4526         psli->mbox_tmo.function = lpfc_mbox_timeout;
4527         psli->mbox_tmo.data = (unsigned long) phba;
4528         /* FCP polling mode timer */
4529         init_timer(&phba->fcp_poll_timer);
4530         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4531         phba->fcp_poll_timer.data = (unsigned long) phba;
4532         /* Fabric block timer */
4533         init_timer(&phba->fabric_block_timer);
4534         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4535         phba->fabric_block_timer.data = (unsigned long) phba;
4536         /* EA polling mode timer */
4537         init_timer(&phba->eratt_poll);
4538         phba->eratt_poll.function = lpfc_poll_eratt;
4539         phba->eratt_poll.data = (unsigned long) phba;
4540
4541         /* Host attention work mask setup */
4542         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4543         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4544
4545         /* Get all the module params for configuring this host */
4546         lpfc_get_cfgparam(phba);
4547         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4548                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4549                 /* check for menlo minimum sg count */
4550                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4551                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4552         }
4553
4554         if (!phba->sli.ring)
4555                 phba->sli.ring = (struct lpfc_sli_ring *)
4556                         kzalloc(LPFC_SLI3_MAX_RING *
4557                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4558         if (!phba->sli.ring)
4559                 return -ENOMEM;
4560
4561         /*
4562          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4563          * used to create the sg_dma_buf_pool must be dynamically calculated.
4564          * 2 segments are added since the IOCB needs a command and response bde.
4565          */
4566         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4567                 sizeof(struct fcp_rsp) +
4568                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4569
4570         if (phba->cfg_enable_bg) {
4571                 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4572                 phba->cfg_sg_dma_buf_size +=
4573                         phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
4574         }
4575
4576         /* Also reinitialize the host templates with new values. */
4577         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4578         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4579
4580         phba->max_vpi = LPFC_MAX_VPI;
4581         /* This will be set to correct value after config_port mbox */
4582         phba->max_vports = 0;
4583
4584         /*
4585          * Initialize the SLI Layer to run with lpfc HBAs.
4586          */
4587         lpfc_sli_setup(phba);
4588         lpfc_sli_queue_setup(phba);
4589
4590         /* Allocate device driver memory */
4591         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4592                 return -ENOMEM;
4593
4594         /*
4595          * Enable sr-iov virtual functions if supported and configured
4596          * through the module parameter.
4597          */
4598         if (phba->cfg_sriov_nr_virtfn > 0) {
4599                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4600                                                  phba->cfg_sriov_nr_virtfn);
4601                 if (rc) {
4602                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4603                                         "2808 Requested number of SR-IOV "
4604                                         "virtual functions (%d) is not "
4605                                         "supported\n",
4606                                         phba->cfg_sriov_nr_virtfn);
4607                         phba->cfg_sriov_nr_virtfn = 0;
4608                 }
4609         }
4610
4611         return 0;
4612 }
4613
4614 /**
4615  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4616  * @phba: pointer to lpfc hba data structure.
4617  *
4618  * This routine is invoked to unset the driver internal resources set up
4619  * specific for supporting the SLI-3 HBA device it attached to.
4620  **/
4621 static void
4622 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4623 {
4624         /* Free device driver memory allocated */
4625         lpfc_mem_free_all(phba);
4626
4627         return;
4628 }
4629
4630 /**
4631  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4632  * @phba: pointer to lpfc hba data structure.
4633  *
4634  * This routine is invoked to set up the driver internal resources specific to
4635  * support the SLI-4 HBA device it attached to.
4636  *
4637  * Return codes
4638  *      0 - successful
4639  *      other values - error
4640  **/
4641 static int
4642 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4643 {
4644         struct lpfc_sli *psli;
4645         LPFC_MBOXQ_t *mboxq;
4646         int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4647         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4648         struct lpfc_mqe *mqe;
4649         int longs, sli_family;
4650         int sges_per_segment;
4651
4652         /* Before proceed, wait for POST done and device ready */
4653         rc = lpfc_sli4_post_status_check(phba);
4654         if (rc)
4655                 return -ENODEV;
4656
4657         /*
4658          * Initialize timers used by driver
4659          */
4660
4661         /* Heartbeat timer */
4662         init_timer(&phba->hb_tmofunc);
4663         phba->hb_tmofunc.function = lpfc_hb_timeout;
4664         phba->hb_tmofunc.data = (unsigned long)phba;
4665         init_timer(&phba->rrq_tmr);
4666         phba->rrq_tmr.function = lpfc_rrq_timeout;
4667         phba->rrq_tmr.data = (unsigned long)phba;
4668
4669         psli = &phba->sli;
4670         /* MBOX heartbeat timer */
4671         init_timer(&psli->mbox_tmo);
4672         psli->mbox_tmo.function = lpfc_mbox_timeout;
4673         psli->mbox_tmo.data = (unsigned long) phba;
4674         /* Fabric block timer */
4675         init_timer(&phba->fabric_block_timer);
4676         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4677         phba->fabric_block_timer.data = (unsigned long) phba;
4678         /* EA polling mode timer */
4679         init_timer(&phba->eratt_poll);
4680         phba->eratt_poll.function = lpfc_poll_eratt;
4681         phba->eratt_poll.data = (unsigned long) phba;
4682         /* FCF rediscover timer */
4683         init_timer(&phba->fcf.redisc_wait);
4684         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4685         phba->fcf.redisc_wait.data = (unsigned long)phba;
4686
4687         /*
4688          * Control structure for handling external multi-buffer mailbox
4689          * command pass-through.
4690          */
4691         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4692                 sizeof(struct lpfc_mbox_ext_buf_ctx));
4693         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4694
4695         /*
4696          * We need to do a READ_CONFIG mailbox command here before
4697          * calling lpfc_get_cfgparam. For VFs this will report the
4698          * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4699          * All of the resources allocated
4700          * for this Port are tied to these values.
4701          */
4702         /* Get all the module params for configuring this host */
4703         lpfc_get_cfgparam(phba);
4704         phba->max_vpi = LPFC_MAX_VPI;
4705
4706         /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
4707         phba->cfg_fcp_io_channel = phba->cfg_fcp_eq_count;
4708
4709         /* This will be set to correct value after the read_config mbox */
4710         phba->max_vports = 0;
4711
4712         /* Program the default value of vlan_id and fc_map */
4713         phba->valid_vlan = 0;
4714         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4715         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4716         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4717
4718         /* With BlockGuard we can have multiple SGEs per Data Segemnt */
4719         sges_per_segment = 1;
4720         if (phba->cfg_enable_bg)
4721                 sges_per_segment = 2;
4722
4723         /*
4724          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
4725          * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
4726          */
4727         if (!phba->sli.ring)
4728                 phba->sli.ring = kzalloc(
4729                         (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
4730                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4731         if (!phba->sli.ring)
4732                 return -ENOMEM;
4733         /*
4734          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4735          * used to create the sg_dma_buf_pool must be dynamically calculated.
4736          * 2 segments are added since the IOCB needs a command and response bde.
4737          * To insure that the scsi sgl does not cross a 4k page boundary only
4738          * sgl sizes of must be a power of 2.
4739          */
4740         buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4741                     (((phba->cfg_sg_seg_cnt * sges_per_segment) + 2) *
4742                     sizeof(struct sli4_sge)));
4743
4744         sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4745         max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4746         switch (sli_family) {
4747         case LPFC_SLI_INTF_FAMILY_BE2:
4748         case LPFC_SLI_INTF_FAMILY_BE3:
4749                 /* There is a single hint for BE - 2 pages per BPL. */
4750                 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4751                     LPFC_SLI_INTF_SLI_HINT1_1)
4752                         max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4753                 break;
4754         case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4755         case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4756         default:
4757                 break;
4758         }
4759
4760         for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4761              dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4762              dma_buf_size = dma_buf_size << 1)
4763                 ;
4764         if (dma_buf_size == max_buf_size)
4765                 phba->cfg_sg_seg_cnt = (dma_buf_size -
4766                         sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4767                         (2 * sizeof(struct sli4_sge))) /
4768                                 sizeof(struct sli4_sge);
4769         phba->cfg_sg_dma_buf_size = dma_buf_size;
4770
4771         /* Initialize buffer queue management fields */
4772         hbq_count = lpfc_sli_hbq_count();
4773         for (i = 0; i < hbq_count; ++i)
4774                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4775         INIT_LIST_HEAD(&phba->rb_pend_list);
4776         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4777         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4778
4779         /*
4780          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4781          */
4782         /* Initialize the Abort scsi buffer list used by driver */
4783         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4784         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4785         /* This abort list used by worker thread */
4786         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
4787
4788         /*
4789          * Initialize driver internal slow-path work queues
4790          */
4791
4792         /* Driver internel slow-path CQ Event pool */
4793         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4794         /* Response IOCB work queue list */
4795         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4796         /* Asynchronous event CQ Event work queue list */
4797         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4798         /* Fast-path XRI aborted CQ Event work queue list */
4799         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4800         /* Slow-path XRI aborted CQ Event work queue list */
4801         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4802         /* Receive queue CQ Event work queue list */
4803         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4804
4805         /* Initialize extent block lists. */
4806         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
4807         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
4808         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
4809         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
4810
4811         /* Initialize the driver internal SLI layer lists. */
4812         lpfc_sli_setup(phba);
4813         lpfc_sli_queue_setup(phba);
4814
4815         /* Allocate device driver memory */
4816         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4817         if (rc)
4818                 return -ENOMEM;
4819
4820         /* IF Type 2 ports get initialized now. */
4821         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4822             LPFC_SLI_INTF_IF_TYPE_2) {
4823                 rc = lpfc_pci_function_reset(phba);
4824                 if (unlikely(rc))
4825                         return -ENODEV;
4826         }
4827
4828         /* Create the bootstrap mailbox command */
4829         rc = lpfc_create_bootstrap_mbox(phba);
4830         if (unlikely(rc))
4831                 goto out_free_mem;
4832
4833         /* Set up the host's endian order with the device. */
4834         rc = lpfc_setup_endian_order(phba);
4835         if (unlikely(rc))
4836                 goto out_free_bsmbx;
4837
4838         /* Set up the hba's configuration parameters. */
4839         rc = lpfc_sli4_read_config(phba);
4840         if (unlikely(rc))
4841                 goto out_free_bsmbx;
4842
4843         /* IF Type 0 ports get initialized now. */
4844         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4845             LPFC_SLI_INTF_IF_TYPE_0) {
4846                 rc = lpfc_pci_function_reset(phba);
4847                 if (unlikely(rc))
4848                         goto out_free_bsmbx;
4849         }
4850
4851         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4852                                                        GFP_KERNEL);
4853         if (!mboxq) {
4854                 rc = -ENOMEM;
4855                 goto out_free_bsmbx;
4856         }
4857
4858         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
4859         lpfc_supported_pages(mboxq);
4860         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4861         if (!rc) {
4862                 mqe = &mboxq->u.mqe;
4863                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4864                        LPFC_MAX_SUPPORTED_PAGES);
4865                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4866                         switch (pn_page[i]) {
4867                         case LPFC_SLI4_PARAMETERS:
4868                                 phba->sli4_hba.pc_sli4_params.supported = 1;
4869                                 break;
4870                         default:
4871                                 break;
4872                         }
4873                 }
4874                 /* Read the port's SLI4 Parameters capabilities if supported. */
4875                 if (phba->sli4_hba.pc_sli4_params.supported)
4876                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
4877                 if (rc) {
4878                         mempool_free(mboxq, phba->mbox_mem_pool);
4879                         rc = -EIO;
4880                         goto out_free_bsmbx;
4881                 }
4882         }
4883         /*
4884          * Get sli4 parameters that override parameters from Port capabilities.
4885          * If this call fails, it isn't critical unless the SLI4 parameters come
4886          * back in conflict.
4887          */
4888         rc = lpfc_get_sli4_parameters(phba, mboxq);
4889         if (rc) {
4890                 if (phba->sli4_hba.extents_in_use &&
4891                     phba->sli4_hba.rpi_hdrs_in_use) {
4892                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4893                                 "2999 Unsupported SLI4 Parameters "
4894                                 "Extents and RPI headers enabled.\n");
4895                         goto out_free_bsmbx;
4896                 }
4897         }
4898         mempool_free(mboxq, phba->mbox_mem_pool);
4899         /* Verify all the SLI4 queues */
4900         rc = lpfc_sli4_queue_verify(phba);
4901         if (rc)
4902                 goto out_free_bsmbx;
4903
4904         /* Create driver internal CQE event pool */
4905         rc = lpfc_sli4_cq_event_pool_create(phba);
4906         if (rc)
4907                 goto out_free_bsmbx;
4908
4909         /* Initialize sgl lists per host */
4910         lpfc_init_sgl_list(phba);
4911
4912         /* Allocate and initialize active sgl array */
4913         rc = lpfc_init_active_sgl_array(phba);
4914         if (rc) {
4915                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4916                                 "1430 Failed to initialize sgl list.\n");
4917                 goto out_destroy_cq_event_pool;
4918         }
4919         rc = lpfc_sli4_init_rpi_hdrs(phba);
4920         if (rc) {
4921                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4922                                 "1432 Failed to initialize rpi headers.\n");
4923                 goto out_free_active_sgl;
4924         }
4925
4926         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
4927         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4928         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4929                                          GFP_KERNEL);
4930         if (!phba->fcf.fcf_rr_bmask) {
4931                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4932                                 "2759 Failed allocate memory for FCF round "
4933                                 "robin failover bmask\n");
4934                 rc = -ENOMEM;
4935                 goto out_remove_rpi_hdrs;
4936         }
4937
4938         phba->sli4_hba.fcp_eq_hdl =
4939                         kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4940                             phba->cfg_fcp_io_channel), GFP_KERNEL);
4941         if (!phba->sli4_hba.fcp_eq_hdl) {
4942                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4943                                 "2572 Failed allocate memory for "
4944                                 "fast-path per-EQ handle array\n");
4945                 rc = -ENOMEM;
4946                 goto out_free_fcf_rr_bmask;
4947         }
4948
4949         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4950                                       phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4951         if (!phba->sli4_hba.msix_entries) {
4952                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4953                                 "2573 Failed allocate memory for msi-x "
4954                                 "interrupt vector entries\n");
4955                 rc = -ENOMEM;
4956                 goto out_free_fcp_eq_hdl;
4957         }
4958
4959         /*
4960          * Enable sr-iov virtual functions if supported and configured
4961          * through the module parameter.
4962          */
4963         if (phba->cfg_sriov_nr_virtfn > 0) {
4964                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4965                                                  phba->cfg_sriov_nr_virtfn);
4966                 if (rc) {
4967                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4968                                         "3020 Requested number of SR-IOV "
4969                                         "virtual functions (%d) is not "
4970                                         "supported\n",
4971                                         phba->cfg_sriov_nr_virtfn);
4972                         phba->cfg_sriov_nr_virtfn = 0;
4973                 }
4974         }
4975
4976         return 0;
4977
4978 out_free_fcp_eq_hdl:
4979         kfree(phba->sli4_hba.fcp_eq_hdl);
4980 out_free_fcf_rr_bmask:
4981         kfree(phba->fcf.fcf_rr_bmask);
4982 out_remove_rpi_hdrs:
4983         lpfc_sli4_remove_rpi_hdrs(phba);
4984 out_free_active_sgl:
4985         lpfc_free_active_sgl(phba);
4986 out_destroy_cq_event_pool:
4987         lpfc_sli4_cq_event_pool_destroy(phba);
4988 out_free_bsmbx:
4989         lpfc_destroy_bootstrap_mbox(phba);
4990 out_free_mem:
4991         lpfc_mem_free(phba);
4992         return rc;
4993 }
4994
4995 /**
4996  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4997  * @phba: pointer to lpfc hba data structure.
4998  *
4999  * This routine is invoked to unset the driver internal resources set up
5000  * specific for supporting the SLI-4 HBA device it attached to.
5001  **/
5002 static void
5003 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5004 {
5005         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5006
5007         /* Free memory allocated for msi-x interrupt vector entries */
5008         kfree(phba->sli4_hba.msix_entries);
5009
5010         /* Free memory allocated for fast-path work queue handles */
5011         kfree(phba->sli4_hba.fcp_eq_hdl);
5012
5013         /* Free the allocated rpi headers. */
5014         lpfc_sli4_remove_rpi_hdrs(phba);
5015         lpfc_sli4_remove_rpis(phba);
5016
5017         /* Free eligible FCF index bmask */
5018         kfree(phba->fcf.fcf_rr_bmask);
5019
5020         /* Free the ELS sgl list */
5021         lpfc_free_active_sgl(phba);
5022         lpfc_free_els_sgl_list(phba);
5023
5024         /* Free the completion queue EQ event pool */
5025         lpfc_sli4_cq_event_release_all(phba);
5026         lpfc_sli4_cq_event_pool_destroy(phba);
5027
5028         /* Release resource identifiers. */
5029         lpfc_sli4_dealloc_resource_identifiers(phba);
5030
5031         /* Free the bsmbx region. */
5032         lpfc_destroy_bootstrap_mbox(phba);
5033
5034         /* Free the SLI Layer memory with SLI4 HBAs */
5035         lpfc_mem_free_all(phba);
5036
5037         /* Free the current connect table */
5038         list_for_each_entry_safe(conn_entry, next_conn_entry,
5039                 &phba->fcf_conn_rec_list, list) {
5040                 list_del_init(&conn_entry->list);
5041                 kfree(conn_entry);
5042         }
5043
5044         return;
5045 }
5046
5047 /**
5048  * lpfc_init_api_table_setup - Set up init api function jump table
5049  * @phba: The hba struct for which this call is being executed.
5050  * @dev_grp: The HBA PCI-Device group number.
5051  *
5052  * This routine sets up the device INIT interface API function jump table
5053  * in @phba struct.
5054  *
5055  * Returns: 0 - success, -ENODEV - failure.
5056  **/
5057 int
5058 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5059 {
5060         phba->lpfc_hba_init_link = lpfc_hba_init_link;
5061         phba->lpfc_hba_down_link = lpfc_hba_down_link;
5062         phba->lpfc_selective_reset = lpfc_selective_reset;
5063         switch (dev_grp) {
5064         case LPFC_PCI_DEV_LP:
5065                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5066                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5067                 phba->lpfc_stop_port = lpfc_stop_port_s3;
5068                 break;
5069         case LPFC_PCI_DEV_OC:
5070                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5071                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5072                 phba->lpfc_stop_port = lpfc_stop_port_s4;
5073                 break;
5074         default:
5075                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5076                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
5077                                 dev_grp);
5078                 return -ENODEV;
5079                 break;
5080         }
5081         return 0;
5082 }
5083
5084 /**
5085  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5086  * @phba: pointer to lpfc hba data structure.
5087  *
5088  * This routine is invoked to set up the driver internal resources before the
5089  * device specific resource setup to support the HBA device it attached to.
5090  *
5091  * Return codes
5092  *      0 - successful
5093  *      other values - error
5094  **/
5095 static int
5096 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5097 {
5098         /*
5099          * Driver resources common to all SLI revisions
5100          */
5101         atomic_set(&phba->fast_event_count, 0);
5102         spin_lock_init(&phba->hbalock);
5103
5104         /* Initialize ndlp management spinlock */
5105         spin_lock_init(&phba->ndlp_lock);
5106
5107         INIT_LIST_HEAD(&phba->port_list);
5108         INIT_LIST_HEAD(&phba->work_list);
5109         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5110
5111         /* Initialize the wait queue head for the kernel thread */
5112         init_waitqueue_head(&phba->work_waitq);
5113
5114         /* Initialize the scsi buffer list used by driver for scsi IO */
5115         spin_lock_init(&phba->scsi_buf_list_lock);
5116         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
5117
5118         /* Initialize the fabric iocb list */
5119         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5120
5121         /* Initialize list to save ELS buffers */
5122         INIT_LIST_HEAD(&phba->elsbuf);
5123
5124         /* Initialize FCF connection rec list */
5125         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5126
5127         return 0;
5128 }
5129
5130 /**
5131  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5132  * @phba: pointer to lpfc hba data structure.
5133  *
5134  * This routine is invoked to set up the driver internal resources after the
5135  * device specific resource setup to support the HBA device it attached to.
5136  *
5137  * Return codes
5138  *      0 - successful
5139  *      other values - error
5140  **/
5141 static int
5142 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5143 {
5144         int error;
5145
5146         /* Startup the kernel thread for this host adapter. */
5147         phba->worker_thread = kthread_run(lpfc_do_work, phba,
5148                                           "lpfc_worker_%d", phba->brd_no);
5149         if (IS_ERR(phba->worker_thread)) {
5150                 error = PTR_ERR(phba->worker_thread);
5151                 return error;
5152         }
5153
5154         return 0;
5155 }
5156
5157 /**
5158  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5159  * @phba: pointer to lpfc hba data structure.
5160  *
5161  * This routine is invoked to unset the driver internal resources set up after
5162  * the device specific resource setup for supporting the HBA device it
5163  * attached to.
5164  **/
5165 static void
5166 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5167 {
5168         /* Stop kernel worker thread */
5169         kthread_stop(phba->worker_thread);
5170 }
5171
5172 /**
5173  * lpfc_free_iocb_list - Free iocb list.
5174  * @phba: pointer to lpfc hba data structure.
5175  *
5176  * This routine is invoked to free the driver's IOCB list and memory.
5177  **/
5178 static void
5179 lpfc_free_iocb_list(struct lpfc_hba *phba)
5180 {
5181         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5182
5183         spin_lock_irq(&phba->hbalock);
5184         list_for_each_entry_safe(iocbq_entry, iocbq_next,
5185                                  &phba->lpfc_iocb_list, list) {
5186                 list_del(&iocbq_entry->list);
5187                 kfree(iocbq_entry);
5188                 phba->total_iocbq_bufs--;
5189         }
5190         spin_unlock_irq(&phba->hbalock);
5191
5192         return;
5193 }
5194
5195 /**
5196  * lpfc_init_iocb_list - Allocate and initialize iocb list.
5197  * @phba: pointer to lpfc hba data structure.
5198  *
5199  * This routine is invoked to allocate and initizlize the driver's IOCB
5200  * list and set up the IOCB tag array accordingly.
5201  *
5202  * Return codes
5203  *      0 - successful
5204  *      other values - error
5205  **/
5206 static int
5207 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5208 {
5209         struct lpfc_iocbq *iocbq_entry = NULL;
5210         uint16_t iotag;
5211         int i;
5212
5213         /* Initialize and populate the iocb list per host.  */
5214         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5215         for (i = 0; i < iocb_count; i++) {
5216                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5217                 if (iocbq_entry == NULL) {
5218                         printk(KERN_ERR "%s: only allocated %d iocbs of "
5219                                 "expected %d count. Unloading driver.\n",
5220                                 __func__, i, LPFC_IOCB_LIST_CNT);
5221                         goto out_free_iocbq;
5222                 }
5223
5224                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5225                 if (iotag == 0) {
5226                         kfree(iocbq_entry);
5227                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
5228                                 "Unloading driver.\n", __func__);
5229                         goto out_free_iocbq;
5230                 }
5231                 iocbq_entry->sli4_lxritag = NO_XRI;
5232                 iocbq_entry->sli4_xritag = NO_XRI;
5233
5234                 spin_lock_irq(&phba->hbalock);
5235                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5236                 phba->total_iocbq_bufs++;
5237                 spin_unlock_irq(&phba->hbalock);
5238         }
5239
5240         return 0;
5241
5242 out_free_iocbq:
5243         lpfc_free_iocb_list(phba);
5244
5245         return -ENOMEM;
5246 }
5247
5248 /**
5249  * lpfc_free_sgl_list - Free a given sgl list.
5250  * @phba: pointer to lpfc hba data structure.
5251  * @sglq_list: pointer to the head of sgl list.
5252  *
5253  * This routine is invoked to free a give sgl list and memory.
5254  **/
5255 void
5256 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5257 {
5258         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5259
5260         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5261                 list_del(&sglq_entry->list);
5262                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5263                 kfree(sglq_entry);
5264         }
5265 }
5266
5267 /**
5268  * lpfc_free_els_sgl_list - Free els sgl list.
5269  * @phba: pointer to lpfc hba data structure.
5270  *
5271  * This routine is invoked to free the driver's els sgl list and memory.
5272  **/
5273 static void
5274 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5275 {
5276         LIST_HEAD(sglq_list);
5277
5278         /* Retrieve all els sgls from driver list */
5279         spin_lock_irq(&phba->hbalock);
5280         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5281         spin_unlock_irq(&phba->hbalock);
5282
5283         /* Now free the sgl list */
5284         lpfc_free_sgl_list(phba, &sglq_list);
5285 }
5286
5287 /**
5288  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5289  * @phba: pointer to lpfc hba data structure.
5290  *
5291  * This routine is invoked to allocate the driver's active sgl memory.
5292  * This array will hold the sglq_entry's for active IOs.
5293  **/
5294 static int
5295 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5296 {
5297         int size;
5298         size = sizeof(struct lpfc_sglq *);
5299         size *= phba->sli4_hba.max_cfg_param.max_xri;
5300
5301         phba->sli4_hba.lpfc_sglq_active_list =
5302                 kzalloc(size, GFP_KERNEL);
5303         if (!phba->sli4_hba.lpfc_sglq_active_list)
5304                 return -ENOMEM;
5305         return 0;
5306 }
5307
5308 /**
5309  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5310  * @phba: pointer to lpfc hba data structure.
5311  *
5312  * This routine is invoked to walk through the array of active sglq entries
5313  * and free all of the resources.
5314  * This is just a place holder for now.
5315  **/
5316 static void
5317 lpfc_free_active_sgl(struct lpfc_hba *phba)
5318 {
5319         kfree(phba->sli4_hba.lpfc_sglq_active_list);
5320 }
5321
5322 /**
5323  * lpfc_init_sgl_list - Allocate and initialize sgl list.
5324  * @phba: pointer to lpfc hba data structure.
5325  *
5326  * This routine is invoked to allocate and initizlize the driver's sgl
5327  * list and set up the sgl xritag tag array accordingly.
5328  *
5329  **/
5330 static void
5331 lpfc_init_sgl_list(struct lpfc_hba *phba)
5332 {
5333         /* Initialize and populate the sglq list per host/VF. */
5334         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5335         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5336
5337         /* els xri-sgl book keeping */
5338         phba->sli4_hba.els_xri_cnt = 0;
5339
5340         /* scsi xri-buffer book keeping */
5341         phba->sli4_hba.scsi_xri_cnt = 0;
5342 }
5343
5344 /**
5345  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5346  * @phba: pointer to lpfc hba data structure.
5347  *
5348  * This routine is invoked to post rpi header templates to the
5349  * port for those SLI4 ports that do not support extents.  This routine
5350  * posts a PAGE_SIZE memory region to the port to hold up to
5351  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
5352  * and should be called only when interrupts are disabled.
5353  *
5354  * Return codes
5355  *      0 - successful
5356  *      -ERROR - otherwise.
5357  **/
5358 int
5359 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5360 {
5361         int rc = 0;
5362         struct lpfc_rpi_hdr *rpi_hdr;
5363
5364         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5365         if (!phba->sli4_hba.rpi_hdrs_in_use)
5366                 return rc;
5367         if (phba->sli4_hba.extents_in_use)
5368                 return -EIO;
5369
5370         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5371         if (!rpi_hdr) {
5372                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5373                                 "0391 Error during rpi post operation\n");
5374                 lpfc_sli4_remove_rpis(phba);
5375                 rc = -ENODEV;
5376         }
5377
5378         return rc;
5379 }
5380
5381 /**
5382  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5383  * @phba: pointer to lpfc hba data structure.
5384  *
5385  * This routine is invoked to allocate a single 4KB memory region to
5386  * support rpis and stores them in the phba.  This single region
5387  * provides support for up to 64 rpis.  The region is used globally
5388  * by the device.
5389  *
5390  * Returns:
5391  *   A valid rpi hdr on success.
5392  *   A NULL pointer on any failure.
5393  **/
5394 struct lpfc_rpi_hdr *
5395 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5396 {
5397         uint16_t rpi_limit, curr_rpi_range;
5398         struct lpfc_dmabuf *dmabuf;
5399         struct lpfc_rpi_hdr *rpi_hdr;
5400         uint32_t rpi_count;
5401
5402         /*
5403          * If the SLI4 port supports extents, posting the rpi header isn't
5404          * required.  Set the expected maximum count and let the actual value
5405          * get set when extents are fully allocated.
5406          */
5407         if (!phba->sli4_hba.rpi_hdrs_in_use)
5408                 return NULL;
5409         if (phba->sli4_hba.extents_in_use)
5410                 return NULL;
5411
5412         /* The limit on the logical index is just the max_rpi count. */
5413         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5414         phba->sli4_hba.max_cfg_param.max_rpi - 1;
5415
5416         spin_lock_irq(&phba->hbalock);
5417         /*
5418          * Establish the starting RPI in this header block.  The starting
5419          * rpi is normalized to a zero base because the physical rpi is
5420          * port based.
5421          */
5422         curr_rpi_range = phba->sli4_hba.next_rpi;
5423         spin_unlock_irq(&phba->hbalock);
5424
5425         /*
5426          * The port has a limited number of rpis. The increment here
5427          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5428          * and to allow the full max_rpi range per port.
5429          */
5430         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5431                 rpi_count = rpi_limit - curr_rpi_range;
5432         else
5433                 rpi_count = LPFC_RPI_HDR_COUNT;
5434
5435         if (!rpi_count)
5436                 return NULL;
5437         /*
5438          * First allocate the protocol header region for the port.  The
5439          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5440          */
5441         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5442         if (!dmabuf)
5443                 return NULL;
5444
5445         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5446                                           LPFC_HDR_TEMPLATE_SIZE,
5447                                           &dmabuf->phys,
5448                                           GFP_KERNEL);
5449         if (!dmabuf->virt) {
5450                 rpi_hdr = NULL;
5451                 goto err_free_dmabuf;
5452         }
5453
5454         memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5455         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5456                 rpi_hdr = NULL;
5457                 goto err_free_coherent;
5458         }
5459
5460         /* Save the rpi header data for cleanup later. */
5461         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5462         if (!rpi_hdr)
5463                 goto err_free_coherent;
5464
5465         rpi_hdr->dmabuf = dmabuf;
5466         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5467         rpi_hdr->page_count = 1;
5468         spin_lock_irq(&phba->hbalock);
5469
5470         /* The rpi_hdr stores the logical index only. */
5471         rpi_hdr->start_rpi = curr_rpi_range;
5472         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5473
5474         /*
5475          * The next_rpi stores the next logical module-64 rpi value used
5476          * to post physical rpis in subsequent rpi postings.
5477          */
5478         phba->sli4_hba.next_rpi += rpi_count;
5479         spin_unlock_irq(&phba->hbalock);
5480         return rpi_hdr;
5481
5482  err_free_coherent:
5483         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5484                           dmabuf->virt, dmabuf->phys);
5485  err_free_dmabuf:
5486         kfree(dmabuf);
5487         return NULL;
5488 }
5489
5490 /**
5491  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5492  * @phba: pointer to lpfc hba data structure.
5493  *
5494  * This routine is invoked to remove all memory resources allocated
5495  * to support rpis for SLI4 ports not supporting extents. This routine
5496  * presumes the caller has released all rpis consumed by fabric or port
5497  * logins and is prepared to have the header pages removed.
5498  **/
5499 void
5500 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5501 {
5502         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5503
5504         if (!phba->sli4_hba.rpi_hdrs_in_use)
5505                 goto exit;
5506
5507         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5508                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5509                 list_del(&rpi_hdr->list);
5510                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5511                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5512                 kfree(rpi_hdr->dmabuf);
5513                 kfree(rpi_hdr);
5514         }
5515  exit:
5516         /* There are no rpis available to the port now. */
5517         phba->sli4_hba.next_rpi = 0;
5518 }
5519
5520 /**
5521  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5522  * @pdev: pointer to pci device data structure.
5523  *
5524  * This routine is invoked to allocate the driver hba data structure for an
5525  * HBA device. If the allocation is successful, the phba reference to the
5526  * PCI device data structure is set.
5527  *
5528  * Return codes
5529  *      pointer to @phba - successful
5530  *      NULL - error
5531  **/
5532 static struct lpfc_hba *
5533 lpfc_hba_alloc(struct pci_dev *pdev)
5534 {
5535         struct lpfc_hba *phba;
5536
5537         /* Allocate memory for HBA structure */
5538         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5539         if (!phba) {
5540                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5541                 return NULL;
5542         }
5543
5544         /* Set reference to PCI device in HBA structure */
5545         phba->pcidev = pdev;
5546
5547         /* Assign an unused board number */
5548         phba->brd_no = lpfc_get_instance();
5549         if (phba->brd_no < 0) {
5550                 kfree(phba);
5551                 return NULL;
5552         }
5553
5554         spin_lock_init(&phba->ct_ev_lock);
5555         INIT_LIST_HEAD(&phba->ct_ev_waiters);
5556
5557         return phba;
5558 }
5559
5560 /**
5561  * lpfc_hba_free - Free driver hba data structure with a device.
5562  * @phba: pointer to lpfc hba data structure.
5563  *
5564  * This routine is invoked to free the driver hba data structure with an
5565  * HBA device.
5566  **/
5567 static void
5568 lpfc_hba_free(struct lpfc_hba *phba)
5569 {
5570         /* Release the driver assigned board number */
5571         idr_remove(&lpfc_hba_index, phba->brd_no);
5572
5573         /* Free memory allocated with sli rings */
5574         kfree(phba->sli.ring);
5575         phba->sli.ring = NULL;
5576
5577         kfree(phba);
5578         return;
5579 }
5580
5581 /**
5582  * lpfc_create_shost - Create hba physical port with associated scsi host.
5583  * @phba: pointer to lpfc hba data structure.
5584  *
5585  * This routine is invoked to create HBA physical port and associate a SCSI
5586  * host with it.
5587  *
5588  * Return codes
5589  *      0 - successful
5590  *      other values - error
5591  **/
5592 static int
5593 lpfc_create_shost(struct lpfc_hba *phba)
5594 {
5595         struct lpfc_vport *vport;
5596         struct Scsi_Host  *shost;
5597
5598         /* Initialize HBA FC structure */
5599         phba->fc_edtov = FF_DEF_EDTOV;
5600         phba->fc_ratov = FF_DEF_RATOV;
5601         phba->fc_altov = FF_DEF_ALTOV;
5602         phba->fc_arbtov = FF_DEF_ARBTOV;
5603
5604         atomic_set(&phba->sdev_cnt, 0);
5605         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5606         if (!vport)
5607                 return -ENODEV;
5608
5609         shost = lpfc_shost_from_vport(vport);
5610         phba->pport = vport;
5611         lpfc_debugfs_initialize(vport);
5612         /* Put reference to SCSI host to driver's device private data */
5613         pci_set_drvdata(phba->pcidev, shost);
5614
5615         return 0;
5616 }
5617
5618 /**
5619  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5620  * @phba: pointer to lpfc hba data structure.
5621  *
5622  * This routine is invoked to destroy HBA physical port and the associated
5623  * SCSI host.
5624  **/
5625 static void
5626 lpfc_destroy_shost(struct lpfc_hba *phba)
5627 {
5628         struct lpfc_vport *vport = phba->pport;
5629
5630         /* Destroy physical port that associated with the SCSI host */
5631         destroy_port(vport);
5632
5633         return;
5634 }
5635
5636 /**
5637  * lpfc_setup_bg - Setup Block guard structures and debug areas.
5638  * @phba: pointer to lpfc hba data structure.
5639  * @shost: the shost to be used to detect Block guard settings.
5640  *
5641  * This routine sets up the local Block guard protocol settings for @shost.
5642  * This routine also allocates memory for debugging bg buffers.
5643  **/
5644 static void
5645 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5646 {
5647         uint32_t old_mask;
5648         uint32_t old_guard;
5649
5650         int pagecnt = 10;
5651         if (lpfc_prot_mask && lpfc_prot_guard) {
5652                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5653                                 "1478 Registering BlockGuard with the "
5654                                 "SCSI layer\n");
5655
5656                 old_mask = lpfc_prot_mask;
5657                 old_guard = lpfc_prot_guard;
5658
5659                 /* Only allow supported values */
5660                 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
5661                         SHOST_DIX_TYPE0_PROTECTION |
5662                         SHOST_DIX_TYPE1_PROTECTION);
5663                 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
5664
5665                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
5666                 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
5667                         lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
5668
5669                 if (lpfc_prot_mask && lpfc_prot_guard) {
5670                         if ((old_mask != lpfc_prot_mask) ||
5671                                 (old_guard != lpfc_prot_guard))
5672                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5673                                         "1475 Registering BlockGuard with the "
5674                                         "SCSI layer: mask %d  guard %d\n",
5675                                         lpfc_prot_mask, lpfc_prot_guard);
5676
5677                         scsi_host_set_prot(shost, lpfc_prot_mask);
5678                         scsi_host_set_guard(shost, lpfc_prot_guard);
5679                 } else
5680                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5681                                 "1479 Not Registering BlockGuard with the SCSI "
5682                                 "layer, Bad protection parameters: %d %d\n",
5683                                 old_mask, old_guard);
5684         }
5685
5686         if (!_dump_buf_data) {
5687                 while (pagecnt) {
5688                         spin_lock_init(&_dump_buf_lock);
5689                         _dump_buf_data =
5690                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5691                         if (_dump_buf_data) {
5692                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5693                                         "9043 BLKGRD: allocated %d pages for "
5694                                        "_dump_buf_data at 0x%p\n",
5695                                        (1 << pagecnt), _dump_buf_data);
5696                                 _dump_buf_data_order = pagecnt;
5697                                 memset(_dump_buf_data, 0,
5698                                        ((1 << PAGE_SHIFT) << pagecnt));
5699                                 break;
5700                         } else
5701                                 --pagecnt;
5702                 }
5703                 if (!_dump_buf_data_order)
5704                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5705                                 "9044 BLKGRD: ERROR unable to allocate "
5706                                "memory for hexdump\n");
5707         } else
5708                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5709                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5710                        "\n", _dump_buf_data);
5711         if (!_dump_buf_dif) {
5712                 while (pagecnt) {
5713                         _dump_buf_dif =
5714                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5715                         if (_dump_buf_dif) {
5716                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5717                                         "9046 BLKGRD: allocated %d pages for "
5718                                        "_dump_buf_dif at 0x%p\n",
5719                                        (1 << pagecnt), _dump_buf_dif);
5720                                 _dump_buf_dif_order = pagecnt;
5721                                 memset(_dump_buf_dif, 0,
5722                                        ((1 << PAGE_SHIFT) << pagecnt));
5723                                 break;
5724                         } else
5725                                 --pagecnt;
5726                 }
5727                 if (!_dump_buf_dif_order)
5728                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5729                         "9047 BLKGRD: ERROR unable to allocate "
5730                                "memory for hexdump\n");
5731         } else
5732                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5733                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5734                        _dump_buf_dif);
5735 }
5736
5737 /**
5738  * lpfc_post_init_setup - Perform necessary device post initialization setup.
5739  * @phba: pointer to lpfc hba data structure.
5740  *
5741  * This routine is invoked to perform all the necessary post initialization
5742  * setup for the device.
5743  **/
5744 static void
5745 lpfc_post_init_setup(struct lpfc_hba *phba)
5746 {
5747         struct Scsi_Host  *shost;
5748         struct lpfc_adapter_event_header adapter_event;
5749
5750         /* Get the default values for Model Name and Description */
5751         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5752
5753         /*
5754          * hba setup may have changed the hba_queue_depth so we need to
5755          * adjust the value of can_queue.
5756          */
5757         shost = pci_get_drvdata(phba->pcidev);
5758         shost->can_queue = phba->cfg_hba_queue_depth - 10;
5759         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5760                 lpfc_setup_bg(phba, shost);
5761
5762         lpfc_host_attrib_init(shost);
5763
5764         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5765                 spin_lock_irq(shost->host_lock);
5766                 lpfc_poll_start_timer(phba);
5767                 spin_unlock_irq(shost->host_lock);
5768         }
5769
5770         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5771                         "0428 Perform SCSI scan\n");
5772         /* Send board arrival event to upper layer */
5773         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5774         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5775         fc_host_post_vendor_event(shost, fc_get_event_number(),
5776                                   sizeof(adapter_event),
5777                                   (char *) &adapter_event,
5778                                   LPFC_NL_VENDOR_ID);
5779         return;
5780 }
5781
5782 /**
5783  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5784  * @phba: pointer to lpfc hba data structure.
5785  *
5786  * This routine is invoked to set up the PCI device memory space for device
5787  * with SLI-3 interface spec.
5788  *
5789  * Return codes
5790  *      0 - successful
5791  *      other values - error
5792  **/
5793 static int
5794 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5795 {
5796         struct pci_dev *pdev;
5797         unsigned long bar0map_len, bar2map_len;
5798         int i, hbq_count;
5799         void *ptr;
5800         int error = -ENODEV;
5801
5802         /* Obtain PCI device reference */
5803         if (!phba->pcidev)
5804                 return error;
5805         else
5806                 pdev = phba->pcidev;
5807
5808         /* Set the device DMA mask size */
5809         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5810          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5811                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5812                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5813                         return error;
5814                 }
5815         }
5816
5817         /* Get the bus address of Bar0 and Bar2 and the number of bytes
5818          * required by each mapping.
5819          */
5820         phba->pci_bar0_map = pci_resource_start(pdev, 0);
5821         bar0map_len = pci_resource_len(pdev, 0);
5822
5823         phba->pci_bar2_map = pci_resource_start(pdev, 2);
5824         bar2map_len = pci_resource_len(pdev, 2);
5825
5826         /* Map HBA SLIM to a kernel virtual address. */
5827         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5828         if (!phba->slim_memmap_p) {
5829                 dev_printk(KERN_ERR, &pdev->dev,
5830                            "ioremap failed for SLIM memory.\n");
5831                 goto out;
5832         }
5833
5834         /* Map HBA Control Registers to a kernel virtual address. */
5835         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5836         if (!phba->ctrl_regs_memmap_p) {
5837                 dev_printk(KERN_ERR, &pdev->dev,
5838                            "ioremap failed for HBA control registers.\n");
5839                 goto out_iounmap_slim;
5840         }
5841
5842         /* Allocate memory for SLI-2 structures */
5843         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5844                                                SLI2_SLIM_SIZE,
5845                                                &phba->slim2p.phys,
5846                                                GFP_KERNEL);
5847         if (!phba->slim2p.virt)
5848                 goto out_iounmap;
5849
5850         memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5851         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5852         phba->mbox_ext = (phba->slim2p.virt +
5853                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5854         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5855         phba->IOCBs = (phba->slim2p.virt +
5856                        offsetof(struct lpfc_sli2_slim, IOCBs));
5857
5858         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5859                                                  lpfc_sli_hbq_size(),
5860                                                  &phba->hbqslimp.phys,
5861                                                  GFP_KERNEL);
5862         if (!phba->hbqslimp.virt)
5863                 goto out_free_slim;
5864
5865         hbq_count = lpfc_sli_hbq_count();
5866         ptr = phba->hbqslimp.virt;
5867         for (i = 0; i < hbq_count; ++i) {
5868                 phba->hbqs[i].hbq_virt = ptr;
5869                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5870                 ptr += (lpfc_hbq_defs[i]->entry_count *
5871                         sizeof(struct lpfc_hbq_entry));
5872         }
5873         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5874         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5875
5876         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5877
5878         INIT_LIST_HEAD(&phba->rb_pend_list);
5879
5880         phba->MBslimaddr = phba->slim_memmap_p;
5881         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5882         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5883         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5884         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5885
5886         return 0;
5887
5888 out_free_slim:
5889         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5890                           phba->slim2p.virt, phba->slim2p.phys);
5891 out_iounmap:
5892         iounmap(phba->ctrl_regs_memmap_p);
5893 out_iounmap_slim:
5894         iounmap(phba->slim_memmap_p);
5895 out:
5896         return error;
5897 }
5898
5899 /**
5900  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5901  * @phba: pointer to lpfc hba data structure.
5902  *
5903  * This routine is invoked to unset the PCI device memory space for device
5904  * with SLI-3 interface spec.
5905  **/
5906 static void
5907 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5908 {
5909         struct pci_dev *pdev;
5910
5911         /* Obtain PCI device reference */
5912         if (!phba->pcidev)
5913                 return;
5914         else
5915                 pdev = phba->pcidev;
5916
5917         /* Free coherent DMA memory allocated */
5918         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5919                           phba->hbqslimp.virt, phba->hbqslimp.phys);
5920         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5921                           phba->slim2p.virt, phba->slim2p.phys);
5922
5923         /* I/O memory unmap */
5924         iounmap(phba->ctrl_regs_memmap_p);
5925         iounmap(phba->slim_memmap_p);
5926
5927         return;
5928 }
5929
5930 /**
5931  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5932  * @phba: pointer to lpfc hba data structure.
5933  *
5934  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5935  * done and check status.
5936  *
5937  * Return 0 if successful, otherwise -ENODEV.
5938  **/
5939 int
5940 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5941 {
5942         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
5943         struct lpfc_register reg_data;
5944         int i, port_error = 0;
5945         uint32_t if_type;
5946
5947         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
5948         memset(&reg_data, 0, sizeof(reg_data));
5949         if (!phba->sli4_hba.PSMPHRregaddr)
5950                 return -ENODEV;
5951
5952         /* Wait up to 30 seconds for the SLI Port POST done and ready */
5953         for (i = 0; i < 3000; i++) {
5954                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
5955                         &portsmphr_reg.word0) ||
5956                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
5957                         /* Port has a fatal POST error, break out */
5958                         port_error = -ENODEV;
5959                         break;
5960                 }
5961                 if (LPFC_POST_STAGE_PORT_READY ==
5962                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
5963                         break;
5964                 msleep(10);
5965         }
5966
5967         /*
5968          * If there was a port error during POST, then don't proceed with
5969          * other register reads as the data may not be valid.  Just exit.
5970          */
5971         if (port_error) {
5972                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5973                         "1408 Port Failed POST - portsmphr=0x%x, "
5974                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5975                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5976                         portsmphr_reg.word0,
5977                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
5978                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
5979                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
5980                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
5981                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
5982                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
5983                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
5984                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
5985         } else {
5986                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5987                                 "2534 Device Info: SLIFamily=0x%x, "
5988                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5989                                 "SLIHint_2=0x%x, FT=0x%x\n",
5990                                 bf_get(lpfc_sli_intf_sli_family,
5991                                        &phba->sli4_hba.sli_intf),
5992                                 bf_get(lpfc_sli_intf_slirev,
5993                                        &phba->sli4_hba.sli_intf),
5994                                 bf_get(lpfc_sli_intf_if_type,
5995                                        &phba->sli4_hba.sli_intf),
5996                                 bf_get(lpfc_sli_intf_sli_hint1,
5997                                        &phba->sli4_hba.sli_intf),
5998                                 bf_get(lpfc_sli_intf_sli_hint2,
5999                                        &phba->sli4_hba.sli_intf),
6000                                 bf_get(lpfc_sli_intf_func_type,
6001                                        &phba->sli4_hba.sli_intf));
6002                 /*
6003                  * Check for other Port errors during the initialization
6004                  * process.  Fail the load if the port did not come up
6005                  * correctly.
6006                  */
6007                 if_type = bf_get(lpfc_sli_intf_if_type,
6008                                  &phba->sli4_hba.sli_intf);
6009                 switch (if_type) {
6010                 case LPFC_SLI_INTF_IF_TYPE_0:
6011                         phba->sli4_hba.ue_mask_lo =
6012                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6013                         phba->sli4_hba.ue_mask_hi =
6014                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6015                         uerrlo_reg.word0 =
6016                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6017                         uerrhi_reg.word0 =
6018                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6019                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6020                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6021                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6022                                                 "1422 Unrecoverable Error "
6023                                                 "Detected during POST "
6024                                                 "uerr_lo_reg=0x%x, "
6025                                                 "uerr_hi_reg=0x%x, "
6026                                                 "ue_mask_lo_reg=0x%x, "
6027                                                 "ue_mask_hi_reg=0x%x\n",
6028                                                 uerrlo_reg.word0,
6029                                                 uerrhi_reg.word0,
6030                                                 phba->sli4_hba.ue_mask_lo,
6031                                                 phba->sli4_hba.ue_mask_hi);
6032                                 port_error = -ENODEV;
6033                         }
6034                         break;
6035                 case LPFC_SLI_INTF_IF_TYPE_2:
6036                         /* Final checks.  The port status should be clean. */
6037                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6038                                 &reg_data.word0) ||
6039                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6040                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
6041                                 phba->work_status[0] =
6042                                         readl(phba->sli4_hba.u.if_type2.
6043                                               ERR1regaddr);
6044                                 phba->work_status[1] =
6045                                         readl(phba->sli4_hba.u.if_type2.
6046                                               ERR2regaddr);
6047                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6048                                         "2888 Unrecoverable port error "
6049                                         "following POST: port status reg "
6050                                         "0x%x, port_smphr reg 0x%x, "
6051                                         "error 1=0x%x, error 2=0x%x\n",
6052                                         reg_data.word0,
6053                                         portsmphr_reg.word0,
6054                                         phba->work_status[0],
6055                                         phba->work_status[1]);
6056                                 port_error = -ENODEV;
6057                         }
6058                         break;
6059                 case LPFC_SLI_INTF_IF_TYPE_1:
6060                 default:
6061                         break;
6062                 }
6063         }
6064         return port_error;
6065 }
6066
6067 /**
6068  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6069  * @phba: pointer to lpfc hba data structure.
6070  * @if_type:  The SLI4 interface type getting configured.
6071  *
6072  * This routine is invoked to set up SLI4 BAR0 PCI config space register
6073  * memory map.
6074  **/
6075 static void
6076 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6077 {
6078         switch (if_type) {
6079         case LPFC_SLI_INTF_IF_TYPE_0:
6080                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6081                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6082                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6083                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6084                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6085                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6086                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6087                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6088                 phba->sli4_hba.SLIINTFregaddr =
6089                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6090                 break;
6091         case LPFC_SLI_INTF_IF_TYPE_2:
6092                 phba->sli4_hba.u.if_type2.ERR1regaddr =
6093                         phba->sli4_hba.conf_regs_memmap_p +
6094                                                 LPFC_CTL_PORT_ER1_OFFSET;
6095                 phba->sli4_hba.u.if_type2.ERR2regaddr =
6096                         phba->sli4_hba.conf_regs_memmap_p +
6097                                                 LPFC_CTL_PORT_ER2_OFFSET;
6098                 phba->sli4_hba.u.if_type2.CTRLregaddr =
6099                         phba->sli4_hba.conf_regs_memmap_p +
6100                                                 LPFC_CTL_PORT_CTL_OFFSET;
6101                 phba->sli4_hba.u.if_type2.STATUSregaddr =
6102                         phba->sli4_hba.conf_regs_memmap_p +
6103                                                 LPFC_CTL_PORT_STA_OFFSET;
6104                 phba->sli4_hba.SLIINTFregaddr =
6105                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6106                 phba->sli4_hba.PSMPHRregaddr =
6107                         phba->sli4_hba.conf_regs_memmap_p +
6108                                                 LPFC_CTL_PORT_SEM_OFFSET;
6109                 phba->sli4_hba.RQDBregaddr =
6110                         phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
6111                 phba->sli4_hba.WQDBregaddr =
6112                         phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
6113                 phba->sli4_hba.EQCQDBregaddr =
6114                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6115                 phba->sli4_hba.MQDBregaddr =
6116                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6117                 phba->sli4_hba.BMBXregaddr =
6118                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6119                 break;
6120         case LPFC_SLI_INTF_IF_TYPE_1:
6121         default:
6122                 dev_printk(KERN_ERR, &phba->pcidev->dev,
6123                            "FATAL - unsupported SLI4 interface type - %d\n",
6124                            if_type);
6125                 break;
6126         }
6127 }
6128
6129 /**
6130  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6131  * @phba: pointer to lpfc hba data structure.
6132  *
6133  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6134  * memory map.
6135  **/
6136 static void
6137 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6138 {
6139         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6140                 LPFC_SLIPORT_IF0_SMPHR;
6141         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6142                 LPFC_HST_ISR0;
6143         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6144                 LPFC_HST_IMR0;
6145         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6146                 LPFC_HST_ISCR0;
6147 }
6148
6149 /**
6150  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6151  * @phba: pointer to lpfc hba data structure.
6152  * @vf: virtual function number
6153  *
6154  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6155  * based on the given viftual function number, @vf.
6156  *
6157  * Return 0 if successful, otherwise -ENODEV.
6158  **/
6159 static int
6160 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6161 {
6162         if (vf > LPFC_VIR_FUNC_MAX)
6163                 return -ENODEV;
6164
6165         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6166                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
6167         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6168                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
6169         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6170                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6171         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6172                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6173         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6174                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6175         return 0;
6176 }
6177
6178 /**
6179  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6180  * @phba: pointer to lpfc hba data structure.
6181  *
6182  * This routine is invoked to create the bootstrap mailbox
6183  * region consistent with the SLI-4 interface spec.  This
6184  * routine allocates all memory necessary to communicate
6185  * mailbox commands to the port and sets up all alignment
6186  * needs.  No locks are expected to be held when calling
6187  * this routine.
6188  *
6189  * Return codes
6190  *      0 - successful
6191  *      -ENOMEM - could not allocated memory.
6192  **/
6193 static int
6194 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6195 {
6196         uint32_t bmbx_size;
6197         struct lpfc_dmabuf *dmabuf;
6198         struct dma_address *dma_address;
6199         uint32_t pa_addr;
6200         uint64_t phys_addr;
6201
6202         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6203         if (!dmabuf)
6204                 return -ENOMEM;
6205
6206         /*
6207          * The bootstrap mailbox region is comprised of 2 parts
6208          * plus an alignment restriction of 16 bytes.
6209          */
6210         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6211         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6212                                           bmbx_size,
6213                                           &dmabuf->phys,
6214                                           GFP_KERNEL);
6215         if (!dmabuf->virt) {
6216                 kfree(dmabuf);
6217                 return -ENOMEM;
6218         }
6219         memset(dmabuf->virt, 0, bmbx_size);
6220
6221         /*
6222          * Initialize the bootstrap mailbox pointers now so that the register
6223          * operations are simple later.  The mailbox dma address is required
6224          * to be 16-byte aligned.  Also align the virtual memory as each
6225          * maibox is copied into the bmbx mailbox region before issuing the
6226          * command to the port.
6227          */
6228         phba->sli4_hba.bmbx.dmabuf = dmabuf;
6229         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6230
6231         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6232                                               LPFC_ALIGN_16_BYTE);
6233         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6234                                               LPFC_ALIGN_16_BYTE);
6235
6236         /*
6237          * Set the high and low physical addresses now.  The SLI4 alignment
6238          * requirement is 16 bytes and the mailbox is posted to the port
6239          * as two 30-bit addresses.  The other data is a bit marking whether
6240          * the 30-bit address is the high or low address.
6241          * Upcast bmbx aphys to 64bits so shift instruction compiles
6242          * clean on 32 bit machines.
6243          */
6244         dma_address = &phba->sli4_hba.bmbx.dma_address;
6245         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6246         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6247         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6248                                            LPFC_BMBX_BIT1_ADDR_HI);
6249
6250         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6251         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6252                                            LPFC_BMBX_BIT1_ADDR_LO);
6253         return 0;
6254 }
6255
6256 /**
6257  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6258  * @phba: pointer to lpfc hba data structure.
6259  *
6260  * This routine is invoked to teardown the bootstrap mailbox
6261  * region and release all host resources. This routine requires
6262  * the caller to ensure all mailbox commands recovered, no
6263  * additional mailbox comands are sent, and interrupts are disabled
6264  * before calling this routine.
6265  *
6266  **/
6267 static void
6268 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6269 {
6270         dma_free_coherent(&phba->pcidev->dev,
6271                           phba->sli4_hba.bmbx.bmbx_size,
6272                           phba->sli4_hba.bmbx.dmabuf->virt,
6273                           phba->sli4_hba.bmbx.dmabuf->phys);
6274
6275         kfree(phba->sli4_hba.bmbx.dmabuf);
6276         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6277 }
6278
6279 /**
6280  * lpfc_sli4_read_config - Get the config parameters.
6281  * @phba: pointer to lpfc hba data structure.
6282  *
6283  * This routine is invoked to read the configuration parameters from the HBA.
6284  * The configuration parameters are used to set the base and maximum values
6285  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6286  * allocation for the port.
6287  *
6288  * Return codes
6289  *      0 - successful
6290  *      -ENOMEM - No available memory
6291  *      -EIO - The mailbox failed to complete successfully.
6292  **/
6293 int
6294 lpfc_sli4_read_config(struct lpfc_hba *phba)
6295 {
6296         LPFC_MBOXQ_t *pmb;
6297         struct lpfc_mbx_read_config *rd_config;
6298         union  lpfc_sli4_cfg_shdr *shdr;
6299         uint32_t shdr_status, shdr_add_status;
6300         struct lpfc_mbx_get_func_cfg *get_func_cfg;
6301         struct lpfc_rsrc_desc_fcfcoe *desc;
6302         char *pdesc_0;
6303         uint32_t desc_count;
6304         int length, i, rc = 0, rc2;
6305
6306         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6307         if (!pmb) {
6308                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6309                                 "2011 Unable to allocate memory for issuing "
6310                                 "SLI_CONFIG_SPECIAL mailbox command\n");
6311                 return -ENOMEM;
6312         }
6313
6314         lpfc_read_config(phba, pmb);
6315
6316         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6317         if (rc != MBX_SUCCESS) {
6318                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6319                         "2012 Mailbox failed , mbxCmd x%x "
6320                         "READ_CONFIG, mbxStatus x%x\n",
6321                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
6322                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
6323                 rc = -EIO;
6324         } else {
6325                 rd_config = &pmb->u.mqe.un.rd_config;
6326                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6327                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6328                         phba->sli4_hba.lnk_info.lnk_tp =
6329                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6330                         phba->sli4_hba.lnk_info.lnk_no =
6331                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6332                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6333                                         "3081 lnk_type:%d, lnk_numb:%d\n",
6334                                         phba->sli4_hba.lnk_info.lnk_tp,
6335                                         phba->sli4_hba.lnk_info.lnk_no);
6336                 } else
6337                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6338                                         "3082 Mailbox (x%x) returned ldv:x0\n",
6339                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
6340                 phba->sli4_hba.extents_in_use =
6341                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6342                 phba->sli4_hba.max_cfg_param.max_xri =
6343                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6344                 phba->sli4_hba.max_cfg_param.xri_base =
6345                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6346                 phba->sli4_hba.max_cfg_param.max_vpi =
6347                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6348                 phba->sli4_hba.max_cfg_param.vpi_base =
6349                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6350                 phba->sli4_hba.max_cfg_param.max_rpi =
6351                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6352                 phba->sli4_hba.max_cfg_param.rpi_base =
6353                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6354                 phba->sli4_hba.max_cfg_param.max_vfi =
6355                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6356                 phba->sli4_hba.max_cfg_param.vfi_base =
6357                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6358                 phba->sli4_hba.max_cfg_param.max_fcfi =
6359                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6360                 phba->sli4_hba.max_cfg_param.max_eq =
6361                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6362                 phba->sli4_hba.max_cfg_param.max_rq =
6363                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6364                 phba->sli4_hba.max_cfg_param.max_wq =
6365                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6366                 phba->sli4_hba.max_cfg_param.max_cq =
6367                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6368                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6369                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6370                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6371                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6372                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6373                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6374                 phba->max_vports = phba->max_vpi;
6375                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6376                                 "2003 cfg params Extents? %d "
6377                                 "XRI(B:%d M:%d), "
6378                                 "VPI(B:%d M:%d) "
6379                                 "VFI(B:%d M:%d) "
6380                                 "RPI(B:%d M:%d) "
6381                                 "FCFI(Count:%d)\n",
6382                                 phba->sli4_hba.extents_in_use,
6383                                 phba->sli4_hba.max_cfg_param.xri_base,
6384                                 phba->sli4_hba.max_cfg_param.max_xri,
6385                                 phba->sli4_hba.max_cfg_param.vpi_base,
6386                                 phba->sli4_hba.max_cfg_param.max_vpi,
6387                                 phba->sli4_hba.max_cfg_param.vfi_base,
6388                                 phba->sli4_hba.max_cfg_param.max_vfi,
6389                                 phba->sli4_hba.max_cfg_param.rpi_base,
6390                                 phba->sli4_hba.max_cfg_param.max_rpi,
6391                                 phba->sli4_hba.max_cfg_param.max_fcfi);
6392         }
6393
6394         if (rc)
6395                 goto read_cfg_out;
6396
6397         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6398         if (phba->cfg_hba_queue_depth >
6399                 (phba->sli4_hba.max_cfg_param.max_xri -
6400                         lpfc_sli4_get_els_iocb_cnt(phba)))
6401                 phba->cfg_hba_queue_depth =
6402                         phba->sli4_hba.max_cfg_param.max_xri -
6403                                 lpfc_sli4_get_els_iocb_cnt(phba);
6404
6405         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6406             LPFC_SLI_INTF_IF_TYPE_2)
6407                 goto read_cfg_out;
6408
6409         /* get the pf# and vf# for SLI4 if_type 2 port */
6410         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6411                   sizeof(struct lpfc_sli4_cfg_mhdr));
6412         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6413                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6414                          length, LPFC_SLI4_MBX_EMBED);
6415
6416         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6417         shdr = (union lpfc_sli4_cfg_shdr *)
6418                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6419         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6420         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6421         if (rc2 || shdr_status || shdr_add_status) {
6422                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6423                                 "3026 Mailbox failed , mbxCmd x%x "
6424                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6425                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6426                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6427                 goto read_cfg_out;
6428         }
6429
6430         /* search for fc_fcoe resrouce descriptor */
6431         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6432         desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6433
6434         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6435         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6436         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6437         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6438                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6439         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6440                 goto read_cfg_out;
6441
6442         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6443                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6444                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6445                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6446                         phba->sli4_hba.iov.pf_number =
6447                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6448                         phba->sli4_hba.iov.vf_number =
6449                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6450                         break;
6451                 }
6452         }
6453
6454         if (i < LPFC_RSRC_DESC_MAX_NUM)
6455                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6456                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6457                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6458                                 phba->sli4_hba.iov.vf_number);
6459         else
6460                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6461                                 "3028 GET_FUNCTION_CONFIG: failed to find "
6462                                 "Resrouce Descriptor:x%x\n",
6463                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
6464
6465 read_cfg_out:
6466         mempool_free(pmb, phba->mbox_mem_pool);
6467         return rc;
6468 }
6469
6470 /**
6471  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6472  * @phba: pointer to lpfc hba data structure.
6473  *
6474  * This routine is invoked to setup the port-side endian order when
6475  * the port if_type is 0.  This routine has no function for other
6476  * if_types.
6477  *
6478  * Return codes
6479  *      0 - successful
6480  *      -ENOMEM - No available memory
6481  *      -EIO - The mailbox failed to complete successfully.
6482  **/
6483 static int
6484 lpfc_setup_endian_order(struct lpfc_hba *phba)
6485 {
6486         LPFC_MBOXQ_t *mboxq;
6487         uint32_t if_type, rc = 0;
6488         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6489                                       HOST_ENDIAN_HIGH_WORD1};
6490
6491         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6492         switch (if_type) {
6493         case LPFC_SLI_INTF_IF_TYPE_0:
6494                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6495                                                        GFP_KERNEL);
6496                 if (!mboxq) {
6497                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6498                                         "0492 Unable to allocate memory for "
6499                                         "issuing SLI_CONFIG_SPECIAL mailbox "
6500                                         "command\n");
6501                         return -ENOMEM;
6502                 }
6503
6504                 /*
6505                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6506                  * two words to contain special data values and no other data.
6507                  */
6508                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6509                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6510                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6511                 if (rc != MBX_SUCCESS) {
6512                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6513                                         "0493 SLI_CONFIG_SPECIAL mailbox "
6514                                         "failed with status x%x\n",
6515                                         rc);
6516                         rc = -EIO;
6517                 }
6518                 mempool_free(mboxq, phba->mbox_mem_pool);
6519                 break;
6520         case LPFC_SLI_INTF_IF_TYPE_2:
6521         case LPFC_SLI_INTF_IF_TYPE_1:
6522         default:
6523                 break;
6524         }
6525         return rc;
6526 }
6527
6528 /**
6529  * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
6530  * @phba: pointer to lpfc hba data structure.
6531  *
6532  * This routine is invoked to check the user settable queue counts for EQs and
6533  * CQs. after this routine is called the counts will be set to valid values that
6534  * adhere to the constraints of the system's interrupt vectors and the port's
6535  * queue resources.
6536  *
6537  * Return codes
6538  *      0 - successful
6539  *      -ENOMEM - No available memory
6540  **/
6541 static int
6542 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
6543 {
6544         int cfg_fcp_io_channel;
6545         uint32_t cpu;
6546         uint32_t i = 0;
6547
6548
6549         /*
6550          * Sanity check for configured queue parameters against the run-time
6551          * device parameters
6552          */
6553
6554         /* Sanity check on HBA EQ parameters */
6555         cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
6556
6557         /* It doesn't make sense to have more io channels then CPUs */
6558         for_each_online_cpu(cpu) {
6559                 i++;
6560         }
6561         if (i < cfg_fcp_io_channel) {
6562                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6563                                 "3188 Reducing IO channels to match number of "
6564                                 "CPUs: from %d to %d\n", cfg_fcp_io_channel, i);
6565                 cfg_fcp_io_channel = i;
6566         }
6567
6568         if (cfg_fcp_io_channel >
6569             phba->sli4_hba.max_cfg_param.max_eq) {
6570                 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq;
6571                 if (cfg_fcp_io_channel < LPFC_FCP_IO_CHAN_MIN) {
6572                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6573                                         "2574 Not enough EQs (%d) from the "
6574                                         "pci function for supporting FCP "
6575                                         "EQs (%d)\n",
6576                                         phba->sli4_hba.max_cfg_param.max_eq,
6577                                         phba->cfg_fcp_io_channel);
6578                         goto out_error;
6579                 }
6580                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6581                                 "2575 Not enough EQs (%d) from the pci "
6582                                 "function for supporting the requested "
6583                                 "FCP EQs (%d), the actual FCP EQs can "
6584                                 "be supported: %d\n",
6585                                 phba->sli4_hba.max_cfg_param.max_eq,
6586                                 phba->cfg_fcp_io_channel, cfg_fcp_io_channel);
6587         }
6588
6589         /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
6590
6591         /* The actual number of FCP event queues adopted */
6592         phba->cfg_fcp_eq_count = cfg_fcp_io_channel;
6593         phba->cfg_fcp_wq_count = cfg_fcp_io_channel;
6594         phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
6595         phba->sli4_hba.cfg_eqn = cfg_fcp_io_channel;
6596
6597         /* Get EQ depth from module parameter, fake the default for now */
6598         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6599         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
6600
6601         /* Get CQ depth from module parameter, fake the default for now */
6602         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6603         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6604
6605         return 0;
6606 out_error:
6607         return -ENOMEM;
6608 }
6609
6610 /**
6611  * lpfc_sli4_queue_create - Create all the SLI4 queues
6612  * @phba: pointer to lpfc hba data structure.
6613  *
6614  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6615  * operation. For each SLI4 queue type, the parameters such as queue entry
6616  * count (queue depth) shall be taken from the module parameter. For now,
6617  * we just use some constant number as place holder.
6618  *
6619  * Return codes
6620  *      0 - successful
6621  *      -ENOMEM - No availble memory
6622  *      -EIO - The mailbox failed to complete successfully.
6623  **/
6624 int
6625 lpfc_sli4_queue_create(struct lpfc_hba *phba)
6626 {
6627         struct lpfc_queue *qdesc;
6628         int idx;
6629
6630         /*
6631          * Create HBA Record arrays.
6632          */
6633         if (!phba->cfg_fcp_io_channel)
6634                 return -ERANGE;
6635
6636         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6637         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6638         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6639         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6640         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6641         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6642
6643         phba->sli4_hba.hba_eq =  kzalloc((sizeof(struct lpfc_queue *) *
6644                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
6645         if (!phba->sli4_hba.hba_eq) {
6646                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6647                         "2576 Failed allocate memory for "
6648                         "fast-path EQ record array\n");
6649                 goto out_error;
6650         }
6651
6652         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6653                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
6654         if (!phba->sli4_hba.fcp_cq) {
6655                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6656                                 "2577 Failed allocate memory for fast-path "
6657                                 "CQ record array\n");
6658                 goto out_error;
6659         }
6660
6661         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6662                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
6663         if (!phba->sli4_hba.fcp_wq) {
6664                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6665                                 "2578 Failed allocate memory for fast-path "
6666                                 "WQ record array\n");
6667                 goto out_error;
6668         }
6669
6670         /*
6671          * Since the first EQ can have multiple CQs associated with it,
6672          * this array is used to quickly see if we have a FCP fast-path
6673          * CQ match.
6674          */
6675         phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
6676                                          phba->cfg_fcp_io_channel), GFP_KERNEL);
6677         if (!phba->sli4_hba.fcp_cq_map) {
6678                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6679                                 "2545 Failed allocate memory for fast-path "
6680                                 "CQ map\n");
6681                 goto out_error;
6682         }
6683
6684         /*
6685          * Create HBA Event Queues (EQs).  The cfg_fcp_io_channel specifies
6686          * how many EQs to create.
6687          */
6688         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6689
6690                 /* Create EQs */
6691                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6692                                               phba->sli4_hba.eq_ecount);
6693                 if (!qdesc) {
6694                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6695                                         "0497 Failed allocate EQ (%d)\n", idx);
6696                         goto out_error;
6697                 }
6698                 phba->sli4_hba.hba_eq[idx] = qdesc;
6699
6700                 /* Create Fast Path FCP CQs */
6701                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6702                                               phba->sli4_hba.cq_ecount);
6703                 if (!qdesc) {
6704                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6705                                         "0499 Failed allocate fast-path FCP "
6706                                         "CQ (%d)\n", idx);
6707                         goto out_error;
6708                 }
6709                 phba->sli4_hba.fcp_cq[idx] = qdesc;
6710
6711                 /* Create Fast Path FCP WQs */
6712                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6713                                               phba->sli4_hba.wq_ecount);
6714                 if (!qdesc) {
6715                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6716                                         "0503 Failed allocate fast-path FCP "
6717                                         "WQ (%d)\n", idx);
6718                         goto out_error;
6719                 }
6720                 phba->sli4_hba.fcp_wq[idx] = qdesc;
6721         }
6722
6723
6724         /*
6725          * Create Slow Path Completion Queues (CQs)
6726          */
6727
6728         /* Create slow-path Mailbox Command Complete Queue */
6729         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6730                                       phba->sli4_hba.cq_ecount);
6731         if (!qdesc) {
6732                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6733                                 "0500 Failed allocate slow-path mailbox CQ\n");
6734                 goto out_error;
6735         }
6736         phba->sli4_hba.mbx_cq = qdesc;
6737
6738         /* Create slow-path ELS Complete Queue */
6739         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6740                                       phba->sli4_hba.cq_ecount);
6741         if (!qdesc) {
6742                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6743                                 "0501 Failed allocate slow-path ELS CQ\n");
6744                 goto out_error;
6745         }
6746         phba->sli4_hba.els_cq = qdesc;
6747
6748
6749         /*
6750          * Create Slow Path Work Queues (WQs)
6751          */
6752
6753         /* Create Mailbox Command Queue */
6754
6755         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6756                                       phba->sli4_hba.mq_ecount);
6757         if (!qdesc) {
6758                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6759                                 "0505 Failed allocate slow-path MQ\n");
6760                 goto out_error;
6761         }
6762         phba->sli4_hba.mbx_wq = qdesc;
6763
6764         /*
6765          * Create ELS Work Queues
6766          */
6767
6768         /* Create slow-path ELS Work Queue */
6769         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6770                                       phba->sli4_hba.wq_ecount);
6771         if (!qdesc) {
6772                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6773                                 "0504 Failed allocate slow-path ELS WQ\n");
6774                 goto out_error;
6775         }
6776         phba->sli4_hba.els_wq = qdesc;
6777
6778         /*
6779          * Create Receive Queue (RQ)
6780          */
6781
6782         /* Create Receive Queue for header */
6783         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6784                                       phba->sli4_hba.rq_ecount);
6785         if (!qdesc) {
6786                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6787                                 "0506 Failed allocate receive HRQ\n");
6788                 goto out_error;
6789         }
6790         phba->sli4_hba.hdr_rq = qdesc;
6791
6792         /* Create Receive Queue for data */
6793         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6794                                       phba->sli4_hba.rq_ecount);
6795         if (!qdesc) {
6796                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6797                                 "0507 Failed allocate receive DRQ\n");
6798                 goto out_error;
6799         }
6800         phba->sli4_hba.dat_rq = qdesc;
6801
6802         return 0;
6803
6804 out_error:
6805         lpfc_sli4_queue_destroy(phba);
6806         return -ENOMEM;
6807 }
6808
6809 /**
6810  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6811  * @phba: pointer to lpfc hba data structure.
6812  *
6813  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6814  * operation.
6815  *
6816  * Return codes
6817  *      0 - successful
6818  *      -ENOMEM - No available memory
6819  *      -EIO - The mailbox failed to complete successfully.
6820  **/
6821 void
6822 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6823 {
6824         int idx;
6825
6826         if (phba->sli4_hba.hba_eq != NULL) {
6827                 /* Release HBA event queue */
6828                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6829                         if (phba->sli4_hba.hba_eq[idx] != NULL) {
6830                                 lpfc_sli4_queue_free(
6831                                         phba->sli4_hba.hba_eq[idx]);
6832                                 phba->sli4_hba.hba_eq[idx] = NULL;
6833                         }
6834                 }
6835                 kfree(phba->sli4_hba.hba_eq);
6836                 phba->sli4_hba.hba_eq = NULL;
6837         }
6838
6839         if (phba->sli4_hba.fcp_cq != NULL) {
6840                 /* Release FCP completion queue */
6841                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6842                         if (phba->sli4_hba.fcp_cq[idx] != NULL) {
6843                                 lpfc_sli4_queue_free(
6844                                         phba->sli4_hba.fcp_cq[idx]);
6845                                 phba->sli4_hba.fcp_cq[idx] = NULL;
6846                         }
6847                 }
6848                 kfree(phba->sli4_hba.fcp_cq);
6849                 phba->sli4_hba.fcp_cq = NULL;
6850         }
6851
6852         if (phba->sli4_hba.fcp_wq != NULL) {
6853                 /* Release FCP work queue */
6854                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6855                         if (phba->sli4_hba.fcp_wq[idx] != NULL) {
6856                                 lpfc_sli4_queue_free(
6857                                         phba->sli4_hba.fcp_wq[idx]);
6858                                 phba->sli4_hba.fcp_wq[idx] = NULL;
6859                         }
6860                 }
6861                 kfree(phba->sli4_hba.fcp_wq);
6862                 phba->sli4_hba.fcp_wq = NULL;
6863         }
6864
6865         /* Release FCP CQ mapping array */
6866         if (phba->sli4_hba.fcp_cq_map != NULL) {
6867                 kfree(phba->sli4_hba.fcp_cq_map);
6868                 phba->sli4_hba.fcp_cq_map = NULL;
6869         }
6870
6871         /* Release mailbox command work queue */
6872         if (phba->sli4_hba.mbx_wq != NULL) {
6873                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6874                 phba->sli4_hba.mbx_wq = NULL;
6875         }
6876
6877         /* Release ELS work queue */
6878         if (phba->sli4_hba.els_wq != NULL) {
6879                 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6880                 phba->sli4_hba.els_wq = NULL;
6881         }
6882
6883         /* Release unsolicited receive queue */
6884         if (phba->sli4_hba.hdr_rq != NULL) {
6885                 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6886                 phba->sli4_hba.hdr_rq = NULL;
6887         }
6888         if (phba->sli4_hba.dat_rq != NULL) {
6889                 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
6890                 phba->sli4_hba.dat_rq = NULL;
6891         }
6892
6893         /* Release ELS complete queue */
6894         if (phba->sli4_hba.els_cq != NULL) {
6895                 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6896                 phba->sli4_hba.els_cq = NULL;
6897         }
6898
6899         /* Release mailbox command complete queue */
6900         if (phba->sli4_hba.mbx_cq != NULL) {
6901                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6902                 phba->sli4_hba.mbx_cq = NULL;
6903         }
6904
6905         return;
6906 }
6907
6908 /**
6909  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6910  * @phba: pointer to lpfc hba data structure.
6911  *
6912  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6913  * operation.
6914  *
6915  * Return codes
6916  *      0 - successful
6917  *      -ENOMEM - No available memory
6918  *      -EIO - The mailbox failed to complete successfully.
6919  **/
6920 int
6921 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
6922 {
6923         struct lpfc_sli *psli = &phba->sli;
6924         struct lpfc_sli_ring *pring;
6925         int rc = -ENOMEM;
6926         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6927         int fcp_cq_index = 0;
6928
6929         /*
6930          * Set up HBA Event Queues (EQs)
6931          */
6932
6933         /* Set up HBA event queue */
6934         if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
6935                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6936                                 "3147 Fast-path EQs not allocated\n");
6937                 rc = -ENOMEM;
6938                 goto out_error;
6939         }
6940         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
6941                 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
6942                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6943                                         "0522 Fast-path EQ (%d) not "
6944                                         "allocated\n", fcp_eqidx);
6945                         rc = -ENOMEM;
6946                         goto out_destroy_hba_eq;
6947                 }
6948                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
6949                          (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
6950                 if (rc) {
6951                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6952                                         "0523 Failed setup of fast-path EQ "
6953                                         "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6954                         goto out_destroy_hba_eq;
6955                 }
6956                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6957                                 "2584 HBA EQ setup: "
6958                                 "queue[%d]-id=%d\n", fcp_eqidx,
6959                                 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
6960         }
6961
6962         /* Set up fast-path FCP Response Complete Queue */
6963         if (!phba->sli4_hba.fcp_cq) {
6964                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6965                                 "3148 Fast-path FCP CQ array not "
6966                                 "allocated\n");
6967                 rc = -ENOMEM;
6968                 goto out_destroy_hba_eq;
6969         }
6970
6971         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
6972                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6973                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6974                                         "0526 Fast-path FCP CQ (%d) not "
6975                                         "allocated\n", fcp_cqidx);
6976                         rc = -ENOMEM;
6977                         goto out_destroy_fcp_cq;
6978                 }
6979                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
6980                         phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
6981                 if (rc) {
6982                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6983                                         "0527 Failed setup of fast-path FCP "
6984                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6985                         goto out_destroy_fcp_cq;
6986                 }
6987
6988                 /* Setup fcp_cq_map for fast lookup */
6989                 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
6990                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
6991
6992                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6993                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
6994                                 "parent seq[%d]-id=%d\n",
6995                                 fcp_cqidx,
6996                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6997                                 fcp_cqidx,
6998                                 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
6999         }
7000
7001         /* Set up fast-path FCP Work Queue */
7002         if (!phba->sli4_hba.fcp_wq) {
7003                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7004                                 "3149 Fast-path FCP WQ array not "
7005                                 "allocated\n");
7006                 rc = -ENOMEM;
7007                 goto out_destroy_fcp_cq;
7008         }
7009
7010         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7011                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7012                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7013                                         "0534 Fast-path FCP WQ (%d) not "
7014                                         "allocated\n", fcp_wqidx);
7015                         rc = -ENOMEM;
7016                         goto out_destroy_fcp_wq;
7017                 }
7018                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7019                                     phba->sli4_hba.fcp_cq[fcp_wqidx],
7020                                     LPFC_FCP);
7021                 if (rc) {
7022                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7023                                         "0535 Failed setup of fast-path FCP "
7024                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
7025                         goto out_destroy_fcp_wq;
7026                 }
7027
7028                 /* Bind this WQ to the next FCP ring */
7029                 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7030                 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7031                 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7032
7033                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7034                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
7035                                 "parent cq[%d]-id=%d\n",
7036                                 fcp_wqidx,
7037                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7038                                 fcp_cq_index,
7039                                 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7040         }
7041         /*
7042          * Set up Complete Queues (CQs)
7043          */
7044
7045         /* Set up slow-path MBOX Complete Queue as the first CQ */
7046         if (!phba->sli4_hba.mbx_cq) {
7047                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7048                                 "0528 Mailbox CQ not allocated\n");
7049                 rc = -ENOMEM;
7050                 goto out_destroy_fcp_wq;
7051         }
7052         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7053                         phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7054         if (rc) {
7055                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7056                                 "0529 Failed setup of slow-path mailbox CQ: "
7057                                 "rc = 0x%x\n", rc);
7058                 goto out_destroy_fcp_wq;
7059         }
7060         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7061                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7062                         phba->sli4_hba.mbx_cq->queue_id,
7063                         phba->sli4_hba.hba_eq[0]->queue_id);
7064
7065         /* Set up slow-path ELS Complete Queue */
7066         if (!phba->sli4_hba.els_cq) {
7067                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7068                                 "0530 ELS CQ not allocated\n");
7069                 rc = -ENOMEM;
7070                 goto out_destroy_mbx_cq;
7071         }
7072         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7073                         phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7074         if (rc) {
7075                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7076                                 "0531 Failed setup of slow-path ELS CQ: "
7077                                 "rc = 0x%x\n", rc);
7078                 goto out_destroy_mbx_cq;
7079         }
7080         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7081                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7082                         phba->sli4_hba.els_cq->queue_id,
7083                         phba->sli4_hba.hba_eq[0]->queue_id);
7084
7085         /*
7086          * Set up all the Work Queues (WQs)
7087          */
7088
7089         /* Set up Mailbox Command Queue */
7090         if (!phba->sli4_hba.mbx_wq) {
7091                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7092                                 "0538 Slow-path MQ not allocated\n");
7093                 rc = -ENOMEM;
7094                 goto out_destroy_els_cq;
7095         }
7096         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7097                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
7098         if (rc) {
7099                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7100                                 "0539 Failed setup of slow-path MQ: "
7101                                 "rc = 0x%x\n", rc);
7102                 goto out_destroy_els_cq;
7103         }
7104         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7105                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7106                         phba->sli4_hba.mbx_wq->queue_id,
7107                         phba->sli4_hba.mbx_cq->queue_id);
7108
7109         /* Set up slow-path ELS Work Queue */
7110         if (!phba->sli4_hba.els_wq) {
7111                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7112                                 "0536 Slow-path ELS WQ not allocated\n");
7113                 rc = -ENOMEM;
7114                 goto out_destroy_mbx_wq;
7115         }
7116         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7117                             phba->sli4_hba.els_cq, LPFC_ELS);
7118         if (rc) {
7119                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7120                                 "0537 Failed setup of slow-path ELS WQ: "
7121                                 "rc = 0x%x\n", rc);
7122                 goto out_destroy_mbx_wq;
7123         }
7124
7125         /* Bind this WQ to the ELS ring */
7126         pring = &psli->ring[LPFC_ELS_RING];
7127         pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7128         phba->sli4_hba.els_cq->pring = pring;
7129
7130         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7131                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7132                         phba->sli4_hba.els_wq->queue_id,
7133                         phba->sli4_hba.els_cq->queue_id);
7134
7135         /*
7136          * Create Receive Queue (RQ)
7137          */
7138         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7139                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7140                                 "0540 Receive Queue not allocated\n");
7141                 rc = -ENOMEM;
7142                 goto out_destroy_els_wq;
7143         }
7144
7145         lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7146         lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7147
7148         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7149                             phba->sli4_hba.els_cq, LPFC_USOL);
7150         if (rc) {
7151                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7152                                 "0541 Failed setup of Receive Queue: "
7153                                 "rc = 0x%x\n", rc);
7154                 goto out_destroy_fcp_wq;
7155         }
7156
7157         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7158                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7159                         "parent cq-id=%d\n",
7160                         phba->sli4_hba.hdr_rq->queue_id,
7161                         phba->sli4_hba.dat_rq->queue_id,
7162                         phba->sli4_hba.els_cq->queue_id);
7163         return 0;
7164
7165 out_destroy_els_wq:
7166         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7167 out_destroy_mbx_wq:
7168         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7169 out_destroy_els_cq:
7170         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7171 out_destroy_mbx_cq:
7172         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7173 out_destroy_fcp_wq:
7174         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7175                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7176 out_destroy_fcp_cq:
7177         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7178                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7179 out_destroy_hba_eq:
7180         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7181                 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7182 out_error:
7183         return rc;
7184 }
7185
7186 /**
7187  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7188  * @phba: pointer to lpfc hba data structure.
7189  *
7190  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7191  * operation.
7192  *
7193  * Return codes
7194  *      0 - successful
7195  *      -ENOMEM - No available memory
7196  *      -EIO - The mailbox failed to complete successfully.
7197  **/
7198 void
7199 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7200 {
7201         int fcp_qidx;
7202
7203         /* Unset mailbox command work queue */
7204         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7205         /* Unset ELS work queue */
7206         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7207         /* Unset unsolicited receive queue */
7208         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7209         /* Unset FCP work queue */
7210         if (phba->sli4_hba.fcp_wq) {
7211                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7212                      fcp_qidx++)
7213                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7214         }
7215         /* Unset mailbox command complete queue */
7216         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7217         /* Unset ELS complete queue */
7218         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7219         /* Unset FCP response complete queue */
7220         if (phba->sli4_hba.fcp_cq) {
7221                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7222                      fcp_qidx++)
7223                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7224         }
7225         /* Unset fast-path event queue */
7226         if (phba->sli4_hba.hba_eq) {
7227                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7228                      fcp_qidx++)
7229                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7230         }
7231 }
7232
7233 /**
7234  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7235  * @phba: pointer to lpfc hba data structure.
7236  *
7237  * This routine is invoked to allocate and set up a pool of completion queue
7238  * events. The body of the completion queue event is a completion queue entry
7239  * CQE. For now, this pool is used for the interrupt service routine to queue
7240  * the following HBA completion queue events for the worker thread to process:
7241  *   - Mailbox asynchronous events
7242  *   - Receive queue completion unsolicited events
7243  * Later, this can be used for all the slow-path events.
7244  *
7245  * Return codes
7246  *      0 - successful
7247  *      -ENOMEM - No available memory
7248  **/
7249 static int
7250 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7251 {
7252         struct lpfc_cq_event *cq_event;
7253         int i;
7254
7255         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7256                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7257                 if (!cq_event)
7258                         goto out_pool_create_fail;
7259                 list_add_tail(&cq_event->list,
7260                               &phba->sli4_hba.sp_cqe_event_pool);
7261         }
7262         return 0;
7263
7264 out_pool_create_fail:
7265         lpfc_sli4_cq_event_pool_destroy(phba);
7266         return -ENOMEM;
7267 }
7268
7269 /**
7270  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7271  * @phba: pointer to lpfc hba data structure.
7272  *
7273  * This routine is invoked to free the pool of completion queue events at
7274  * driver unload time. Note that, it is the responsibility of the driver
7275  * cleanup routine to free all the outstanding completion-queue events
7276  * allocated from this pool back into the pool before invoking this routine
7277  * to destroy the pool.
7278  **/
7279 static void
7280 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7281 {
7282         struct lpfc_cq_event *cq_event, *next_cq_event;
7283
7284         list_for_each_entry_safe(cq_event, next_cq_event,
7285                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
7286                 list_del(&cq_event->list);
7287                 kfree(cq_event);
7288         }
7289 }
7290
7291 /**
7292  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7293  * @phba: pointer to lpfc hba data structure.
7294  *
7295  * This routine is the lock free version of the API invoked to allocate a
7296  * completion-queue event from the free pool.
7297  *
7298  * Return: Pointer to the newly allocated completion-queue event if successful
7299  *         NULL otherwise.
7300  **/
7301 struct lpfc_cq_event *
7302 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7303 {
7304         struct lpfc_cq_event *cq_event = NULL;
7305
7306         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7307                          struct lpfc_cq_event, list);
7308         return cq_event;
7309 }
7310
7311 /**
7312  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7313  * @phba: pointer to lpfc hba data structure.
7314  *
7315  * This routine is the lock version of the API invoked to allocate a
7316  * completion-queue event from the free pool.
7317  *
7318  * Return: Pointer to the newly allocated completion-queue event if successful
7319  *         NULL otherwise.
7320  **/
7321 struct lpfc_cq_event *
7322 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7323 {
7324         struct lpfc_cq_event *cq_event;
7325         unsigned long iflags;
7326
7327         spin_lock_irqsave(&phba->hbalock, iflags);
7328         cq_event = __lpfc_sli4_cq_event_alloc(phba);
7329         spin_unlock_irqrestore(&phba->hbalock, iflags);
7330         return cq_event;
7331 }
7332
7333 /**
7334  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7335  * @phba: pointer to lpfc hba data structure.
7336  * @cq_event: pointer to the completion queue event to be freed.
7337  *
7338  * This routine is the lock free version of the API invoked to release a
7339  * completion-queue event back into the free pool.
7340  **/
7341 void
7342 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7343                              struct lpfc_cq_event *cq_event)
7344 {
7345         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7346 }
7347
7348 /**
7349  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7350  * @phba: pointer to lpfc hba data structure.
7351  * @cq_event: pointer to the completion queue event to be freed.
7352  *
7353  * This routine is the lock version of the API invoked to release a
7354  * completion-queue event back into the free pool.
7355  **/
7356 void
7357 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7358                            struct lpfc_cq_event *cq_event)
7359 {
7360         unsigned long iflags;
7361         spin_lock_irqsave(&phba->hbalock, iflags);
7362         __lpfc_sli4_cq_event_release(phba, cq_event);
7363         spin_unlock_irqrestore(&phba->hbalock, iflags);
7364 }
7365
7366 /**
7367  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7368  * @phba: pointer to lpfc hba data structure.
7369  *
7370  * This routine is to free all the pending completion-queue events to the
7371  * back into the free pool for device reset.
7372  **/
7373 static void
7374 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7375 {
7376         LIST_HEAD(cqelist);
7377         struct lpfc_cq_event *cqe;
7378         unsigned long iflags;
7379
7380         /* Retrieve all the pending WCQEs from pending WCQE lists */
7381         spin_lock_irqsave(&phba->hbalock, iflags);
7382         /* Pending FCP XRI abort events */
7383         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7384                          &cqelist);
7385         /* Pending ELS XRI abort events */
7386         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7387                          &cqelist);
7388         /* Pending asynnc events */
7389         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7390                          &cqelist);
7391         spin_unlock_irqrestore(&phba->hbalock, iflags);
7392
7393         while (!list_empty(&cqelist)) {
7394                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7395                 lpfc_sli4_cq_event_release(phba, cqe);
7396         }
7397 }
7398
7399 /**
7400  * lpfc_pci_function_reset - Reset pci function.
7401  * @phba: pointer to lpfc hba data structure.
7402  *
7403  * This routine is invoked to request a PCI function reset. It will destroys
7404  * all resources assigned to the PCI function which originates this request.
7405  *
7406  * Return codes
7407  *      0 - successful
7408  *      -ENOMEM - No available memory
7409  *      -EIO - The mailbox failed to complete successfully.
7410  **/
7411 int
7412 lpfc_pci_function_reset(struct lpfc_hba *phba)
7413 {
7414         LPFC_MBOXQ_t *mboxq;
7415         uint32_t rc = 0, if_type;
7416         uint32_t shdr_status, shdr_add_status;
7417         uint32_t rdy_chk, num_resets = 0, reset_again = 0;
7418         union lpfc_sli4_cfg_shdr *shdr;
7419         struct lpfc_register reg_data;
7420         uint16_t devid;
7421
7422         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7423         switch (if_type) {
7424         case LPFC_SLI_INTF_IF_TYPE_0:
7425                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7426                                                        GFP_KERNEL);
7427                 if (!mboxq) {
7428                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7429                                         "0494 Unable to allocate memory for "
7430                                         "issuing SLI_FUNCTION_RESET mailbox "
7431                                         "command\n");
7432                         return -ENOMEM;
7433                 }
7434
7435                 /* Setup PCI function reset mailbox-ioctl command */
7436                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7437                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7438                                  LPFC_SLI4_MBX_EMBED);
7439                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7440                 shdr = (union lpfc_sli4_cfg_shdr *)
7441                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7442                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7443                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7444                                          &shdr->response);
7445                 if (rc != MBX_TIMEOUT)
7446                         mempool_free(mboxq, phba->mbox_mem_pool);
7447                 if (shdr_status || shdr_add_status || rc) {
7448                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7449                                         "0495 SLI_FUNCTION_RESET mailbox "
7450                                         "failed with status x%x add_status x%x,"
7451                                         " mbx status x%x\n",
7452                                         shdr_status, shdr_add_status, rc);
7453                         rc = -ENXIO;
7454                 }
7455                 break;
7456         case LPFC_SLI_INTF_IF_TYPE_2:
7457                 for (num_resets = 0;
7458                      num_resets < MAX_IF_TYPE_2_RESETS;
7459                      num_resets++) {
7460                         reg_data.word0 = 0;
7461                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
7462                                LPFC_SLIPORT_LITTLE_ENDIAN);
7463                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
7464                                LPFC_SLIPORT_INIT_PORT);
7465                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7466                                CTRLregaddr);
7467                         /* flush */
7468                         pci_read_config_word(phba->pcidev,
7469                                              PCI_DEVICE_ID, &devid);
7470                         /*
7471                          * Poll the Port Status Register and wait for RDY for
7472                          * up to 10 seconds.  If the port doesn't respond, treat
7473                          * it as an error.  If the port responds with RN, start
7474                          * the loop again.
7475                          */
7476                         for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
7477                                 msleep(10);
7478                                 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7479                                               STATUSregaddr, &reg_data.word0)) {
7480                                         rc = -ENODEV;
7481                                         goto out;
7482                                 }
7483                                 if (bf_get(lpfc_sliport_status_rn, &reg_data))
7484                                         reset_again++;
7485                                 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
7486                                         break;
7487                         }
7488
7489                         /*
7490                          * If the port responds to the init request with
7491                          * reset needed, delay for a bit and restart the loop.
7492                          */
7493                         if (reset_again && (rdy_chk < 1000)) {
7494                                 msleep(10);
7495                                 reset_again = 0;
7496                                 continue;
7497                         }
7498
7499                         /* Detect any port errors. */
7500                         if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7501                             (rdy_chk >= 1000)) {
7502                                 phba->work_status[0] = readl(
7503                                         phba->sli4_hba.u.if_type2.ERR1regaddr);
7504                                 phba->work_status[1] = readl(
7505                                         phba->sli4_hba.u.if_type2.ERR2regaddr);
7506                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7507                                         "2890 Port error detected during port "
7508                                         "reset(%d): wait_tmo:%d ms, "
7509                                         "port status reg 0x%x, "
7510                                         "error 1=0x%x, error 2=0x%x\n",
7511                                         num_resets, rdy_chk*10,
7512                                         reg_data.word0,
7513                                         phba->work_status[0],
7514                                         phba->work_status[1]);
7515                                 rc = -ENODEV;
7516                         }
7517
7518                         /*
7519                          * Terminate the outer loop provided the Port indicated
7520                          * ready within 10 seconds.
7521                          */
7522                         if (rdy_chk < 1000)
7523                                 break;
7524                 }
7525                 /* delay driver action following IF_TYPE_2 function reset */
7526                 msleep(100);
7527                 break;
7528         case LPFC_SLI_INTF_IF_TYPE_1:
7529         default:
7530                 break;
7531         }
7532
7533 out:
7534         /* Catch the not-ready port failure after a port reset. */
7535         if (num_resets >= MAX_IF_TYPE_2_RESETS)
7536                 rc = -ENODEV;
7537
7538         return rc;
7539 }
7540
7541 /**
7542  * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
7543  * @phba: pointer to lpfc hba data structure.
7544  * @cnt: number of nop mailbox commands to send.
7545  *
7546  * This routine is invoked to send a number @cnt of NOP mailbox command and
7547  * wait for each command to complete.
7548  *
7549  * Return: the number of NOP mailbox command completed.
7550  **/
7551 static int
7552 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
7553 {
7554         LPFC_MBOXQ_t *mboxq;
7555         int length, cmdsent;
7556         uint32_t mbox_tmo;
7557         uint32_t rc = 0;
7558         uint32_t shdr_status, shdr_add_status;
7559         union lpfc_sli4_cfg_shdr *shdr;
7560
7561         if (cnt == 0) {
7562                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7563                                 "2518 Requested to send 0 NOP mailbox cmd\n");
7564                 return cnt;
7565         }
7566
7567         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7568         if (!mboxq) {
7569                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7570                                 "2519 Unable to allocate memory for issuing "
7571                                 "NOP mailbox command\n");
7572                 return 0;
7573         }
7574
7575         /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
7576         length = (sizeof(struct lpfc_mbx_nop) -
7577                   sizeof(struct lpfc_sli4_cfg_mhdr));
7578
7579         for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
7580                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7581                                  LPFC_MBOX_OPCODE_NOP, length,
7582                                  LPFC_SLI4_MBX_EMBED);
7583                 if (!phba->sli4_hba.intr_enable)
7584                         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7585                 else {
7586                         mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
7587                         rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7588                 }
7589                 if (rc == MBX_TIMEOUT)
7590                         break;
7591                 /* Check return status */
7592                 shdr = (union lpfc_sli4_cfg_shdr *)
7593                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7594                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7595                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7596                                          &shdr->response);
7597                 if (shdr_status || shdr_add_status || rc) {
7598                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7599                                         "2520 NOP mailbox command failed "
7600                                         "status x%x add_status x%x mbx "
7601                                         "status x%x\n", shdr_status,
7602                                         shdr_add_status, rc);
7603                         break;
7604                 }
7605         }
7606
7607         if (rc != MBX_TIMEOUT)
7608                 mempool_free(mboxq, phba->mbox_mem_pool);
7609
7610         return cmdsent;
7611 }
7612
7613 /**
7614  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7615  * @phba: pointer to lpfc hba data structure.
7616  *
7617  * This routine is invoked to set up the PCI device memory space for device
7618  * with SLI-4 interface spec.
7619  *
7620  * Return codes
7621  *      0 - successful
7622  *      other values - error
7623  **/
7624 static int
7625 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7626 {
7627         struct pci_dev *pdev;
7628         unsigned long bar0map_len, bar1map_len, bar2map_len;
7629         int error = -ENODEV;
7630         uint32_t if_type;
7631
7632         /* Obtain PCI device reference */
7633         if (!phba->pcidev)
7634                 return error;
7635         else
7636                 pdev = phba->pcidev;
7637
7638         /* Set the device DMA mask size */
7639         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7640          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7641                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7642                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7643                         return error;
7644                 }
7645         }
7646
7647         /*
7648          * The BARs and register set definitions and offset locations are
7649          * dependent on the if_type.
7650          */
7651         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7652                                   &phba->sli4_hba.sli_intf.word0)) {
7653                 return error;
7654         }
7655
7656         /* There is no SLI3 failback for SLI4 devices. */
7657         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7658             LPFC_SLI_INTF_VALID) {
7659                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7660                                 "2894 SLI_INTF reg contents invalid "
7661                                 "sli_intf reg 0x%x\n",
7662                                 phba->sli4_hba.sli_intf.word0);
7663                 return error;
7664         }
7665
7666         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7667         /*
7668          * Get the bus address of SLI4 device Bar regions and the
7669          * number of bytes required by each mapping. The mapping of the
7670          * particular PCI BARs regions is dependent on the type of
7671          * SLI4 device.
7672          */
7673         if (pci_resource_start(pdev, 0)) {
7674                 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7675                 bar0map_len = pci_resource_len(pdev, 0);
7676
7677                 /*
7678                  * Map SLI4 PCI Config Space Register base to a kernel virtual
7679                  * addr
7680                  */
7681                 phba->sli4_hba.conf_regs_memmap_p =
7682                         ioremap(phba->pci_bar0_map, bar0map_len);
7683                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7684                         dev_printk(KERN_ERR, &pdev->dev,
7685                                    "ioremap failed for SLI4 PCI config "
7686                                    "registers.\n");
7687                         goto out;
7688                 }
7689                 /* Set up BAR0 PCI config space register memory map */
7690                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7691         } else {
7692                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7693                 bar0map_len = pci_resource_len(pdev, 1);
7694                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7695                         dev_printk(KERN_ERR, &pdev->dev,
7696                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7697                         goto out;
7698                 }
7699                 phba->sli4_hba.conf_regs_memmap_p =
7700                                 ioremap(phba->pci_bar0_map, bar0map_len);
7701                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7702                         dev_printk(KERN_ERR, &pdev->dev,
7703                                 "ioremap failed for SLI4 PCI config "
7704                                 "registers.\n");
7705                                 goto out;
7706                 }
7707                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7708         }
7709
7710         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7711             (pci_resource_start(pdev, 2))) {
7712                 /*
7713                  * Map SLI4 if type 0 HBA Control Register base to a kernel
7714                  * virtual address and setup the registers.
7715                  */
7716                 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7717                 bar1map_len = pci_resource_len(pdev, 2);
7718                 phba->sli4_hba.ctrl_regs_memmap_p =
7719                                 ioremap(phba->pci_bar1_map, bar1map_len);
7720                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7721                         dev_printk(KERN_ERR, &pdev->dev,
7722                            "ioremap failed for SLI4 HBA control registers.\n");
7723                         goto out_iounmap_conf;
7724                 }
7725                 lpfc_sli4_bar1_register_memmap(phba);
7726         }
7727
7728         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7729             (pci_resource_start(pdev, 4))) {
7730                 /*
7731                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7732                  * virtual address and setup the registers.
7733                  */
7734                 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7735                 bar2map_len = pci_resource_len(pdev, 4);
7736                 phba->sli4_hba.drbl_regs_memmap_p =
7737                                 ioremap(phba->pci_bar2_map, bar2map_len);
7738                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7739                         dev_printk(KERN_ERR, &pdev->dev,
7740                            "ioremap failed for SLI4 HBA doorbell registers.\n");
7741                         goto out_iounmap_ctrl;
7742                 }
7743                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7744                 if (error)
7745                         goto out_iounmap_all;
7746         }
7747
7748         return 0;
7749
7750 out_iounmap_all:
7751         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7752 out_iounmap_ctrl:
7753         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7754 out_iounmap_conf:
7755         iounmap(phba->sli4_hba.conf_regs_memmap_p);
7756 out:
7757         return error;
7758 }
7759
7760 /**
7761  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7762  * @phba: pointer to lpfc hba data structure.
7763  *
7764  * This routine is invoked to unset the PCI device memory space for device
7765  * with SLI-4 interface spec.
7766  **/
7767 static void
7768 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7769 {
7770         uint32_t if_type;
7771         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7772
7773         switch (if_type) {
7774         case LPFC_SLI_INTF_IF_TYPE_0:
7775                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7776                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7777                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7778                 break;
7779         case LPFC_SLI_INTF_IF_TYPE_2:
7780                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7781                 break;
7782         case LPFC_SLI_INTF_IF_TYPE_1:
7783         default:
7784                 dev_printk(KERN_ERR, &phba->pcidev->dev,
7785                            "FATAL - unsupported SLI4 interface type - %d\n",
7786                            if_type);
7787                 break;
7788         }
7789 }
7790
7791 /**
7792  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7793  * @phba: pointer to lpfc hba data structure.
7794  *
7795  * This routine is invoked to enable the MSI-X interrupt vectors to device
7796  * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7797  * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7798  * invoked, enables either all or nothing, depending on the current
7799  * availability of PCI vector resources. The device driver is responsible
7800  * for calling the individual request_irq() to register each MSI-X vector
7801  * with a interrupt handler, which is done in this function. Note that
7802  * later when device is unloading, the driver should always call free_irq()
7803  * on all MSI-X vectors it has done request_irq() on before calling
7804  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7805  * will be left with MSI-X enabled and leaks its vectors.
7806  *
7807  * Return codes
7808  *   0 - successful
7809  *   other values - error
7810  **/
7811 static int
7812 lpfc_sli_enable_msix(struct lpfc_hba *phba)
7813 {
7814         int rc, i;
7815         LPFC_MBOXQ_t *pmb;
7816
7817         /* Set up MSI-X multi-message vectors */
7818         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7819                 phba->msix_entries[i].entry = i;
7820
7821         /* Configure MSI-X capability structure */
7822         rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7823                                 ARRAY_SIZE(phba->msix_entries));
7824         if (rc) {
7825                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7826                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
7827                 goto msi_fail_out;
7828         }
7829         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7830                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7831                                 "0477 MSI-X entry[%d]: vector=x%x "
7832                                 "message=%d\n", i,
7833                                 phba->msix_entries[i].vector,
7834                                 phba->msix_entries[i].entry);
7835         /*
7836          * Assign MSI-X vectors to interrupt handlers
7837          */
7838
7839         /* vector-0 is associated to slow-path handler */
7840         rc = request_irq(phba->msix_entries[0].vector,
7841                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7842                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
7843         if (rc) {
7844                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7845                                 "0421 MSI-X slow-path request_irq failed "
7846                                 "(%d)\n", rc);
7847                 goto msi_fail_out;
7848         }
7849
7850         /* vector-1 is associated to fast-path handler */
7851         rc = request_irq(phba->msix_entries[1].vector,
7852                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7853                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
7854
7855         if (rc) {
7856                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7857                                 "0429 MSI-X fast-path request_irq failed "
7858                                 "(%d)\n", rc);
7859                 goto irq_fail_out;
7860         }
7861
7862         /*
7863          * Configure HBA MSI-X attention conditions to messages
7864          */
7865         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7866
7867         if (!pmb) {
7868                 rc = -ENOMEM;
7869                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7870                                 "0474 Unable to allocate memory for issuing "
7871                                 "MBOX_CONFIG_MSI command\n");
7872                 goto mem_fail_out;
7873         }
7874         rc = lpfc_config_msi(phba, pmb);
7875         if (rc)
7876                 goto mbx_fail_out;
7877         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7878         if (rc != MBX_SUCCESS) {
7879                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
7880                                 "0351 Config MSI mailbox command failed, "
7881                                 "mbxCmd x%x, mbxStatus x%x\n",
7882                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
7883                 goto mbx_fail_out;
7884         }
7885
7886         /* Free memory allocated for mailbox command */
7887         mempool_free(pmb, phba->mbox_mem_pool);
7888         return rc;
7889
7890 mbx_fail_out:
7891         /* Free memory allocated for mailbox command */
7892         mempool_free(pmb, phba->mbox_mem_pool);
7893
7894 mem_fail_out:
7895         /* free the irq already requested */
7896         free_irq(phba->msix_entries[1].vector, phba);
7897
7898 irq_fail_out:
7899         /* free the irq already requested */
7900         free_irq(phba->msix_entries[0].vector, phba);
7901
7902 msi_fail_out:
7903         /* Unconfigure MSI-X capability structure */
7904         pci_disable_msix(phba->pcidev);
7905         return rc;
7906 }
7907
7908 /**
7909  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7910  * @phba: pointer to lpfc hba data structure.
7911  *
7912  * This routine is invoked to release the MSI-X vectors and then disable the
7913  * MSI-X interrupt mode to device with SLI-3 interface spec.
7914  **/
7915 static void
7916 lpfc_sli_disable_msix(struct lpfc_hba *phba)
7917 {
7918         int i;
7919
7920         /* Free up MSI-X multi-message vectors */
7921         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7922                 free_irq(phba->msix_entries[i].vector, phba);
7923         /* Disable MSI-X */
7924         pci_disable_msix(phba->pcidev);
7925
7926         return;
7927 }
7928
7929 /**
7930  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7931  * @phba: pointer to lpfc hba data structure.
7932  *
7933  * This routine is invoked to enable the MSI interrupt mode to device with
7934  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7935  * enable the MSI vector. The device driver is responsible for calling the
7936  * request_irq() to register MSI vector with a interrupt the handler, which
7937  * is done in this function.
7938  *
7939  * Return codes
7940  *      0 - successful
7941  *      other values - error
7942  */
7943 static int
7944 lpfc_sli_enable_msi(struct lpfc_hba *phba)
7945 {
7946         int rc;
7947
7948         rc = pci_enable_msi(phba->pcidev);
7949         if (!rc)
7950                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7951                                 "0462 PCI enable MSI mode success.\n");
7952         else {
7953                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7954                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
7955                 return rc;
7956         }
7957
7958         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7959                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7960         if (rc) {
7961                 pci_disable_msi(phba->pcidev);
7962                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7963                                 "0478 MSI request_irq failed (%d)\n", rc);
7964         }
7965         return rc;
7966 }
7967
7968 /**
7969  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7970  * @phba: pointer to lpfc hba data structure.
7971  *
7972  * This routine is invoked to disable the MSI interrupt mode to device with
7973  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7974  * done request_irq() on before calling pci_disable_msi(). Failure to do so
7975  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7976  * its vector.
7977  */
7978 static void
7979 lpfc_sli_disable_msi(struct lpfc_hba *phba)
7980 {
7981         free_irq(phba->pcidev->irq, phba);
7982         pci_disable_msi(phba->pcidev);
7983         return;
7984 }
7985
7986 /**
7987  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
7988  * @phba: pointer to lpfc hba data structure.
7989  *
7990  * This routine is invoked to enable device interrupt and associate driver's
7991  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
7992  * spec. Depends on the interrupt mode configured to the driver, the driver
7993  * will try to fallback from the configured interrupt mode to an interrupt
7994  * mode which is supported by the platform, kernel, and device in the order
7995  * of:
7996  * MSI-X -> MSI -> IRQ.
7997  *
7998  * Return codes
7999  *   0 - successful
8000  *   other values - error
8001  **/
8002 static uint32_t
8003 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8004 {
8005         uint32_t intr_mode = LPFC_INTR_ERROR;
8006         int retval;
8007
8008         if (cfg_mode == 2) {
8009                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8010                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8011                 if (!retval) {
8012                         /* Now, try to enable MSI-X interrupt mode */
8013                         retval = lpfc_sli_enable_msix(phba);
8014                         if (!retval) {
8015                                 /* Indicate initialization to MSI-X mode */
8016                                 phba->intr_type = MSIX;
8017                                 intr_mode = 2;
8018                         }
8019                 }
8020         }
8021
8022         /* Fallback to MSI if MSI-X initialization failed */
8023         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8024                 retval = lpfc_sli_enable_msi(phba);
8025                 if (!retval) {
8026                         /* Indicate initialization to MSI mode */
8027                         phba->intr_type = MSI;
8028                         intr_mode = 1;
8029                 }
8030         }
8031
8032         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8033         if (phba->intr_type == NONE) {
8034                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8035                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8036                 if (!retval) {
8037                         /* Indicate initialization to INTx mode */
8038                         phba->intr_type = INTx;
8039                         intr_mode = 0;
8040                 }
8041         }
8042         return intr_mode;
8043 }
8044
8045 /**
8046  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8047  * @phba: pointer to lpfc hba data structure.
8048  *
8049  * This routine is invoked to disable device interrupt and disassociate the
8050  * driver's interrupt handler(s) from interrupt vector(s) to device with
8051  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8052  * release the interrupt vector(s) for the message signaled interrupt.
8053  **/
8054 static void
8055 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8056 {
8057         /* Disable the currently initialized interrupt mode */
8058         if (phba->intr_type == MSIX)
8059                 lpfc_sli_disable_msix(phba);
8060         else if (phba->intr_type == MSI)
8061                 lpfc_sli_disable_msi(phba);
8062         else if (phba->intr_type == INTx)
8063                 free_irq(phba->pcidev->irq, phba);
8064
8065         /* Reset interrupt management states */
8066         phba->intr_type = NONE;
8067         phba->sli.slistat.sli_intr = 0;
8068
8069         return;
8070 }
8071
8072 /**
8073  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8074  * @phba: pointer to lpfc hba data structure.
8075  *
8076  * This routine is invoked to enable the MSI-X interrupt vectors to device
8077  * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
8078  * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
8079  * enables either all or nothing, depending on the current availability of
8080  * PCI vector resources. The device driver is responsible for calling the
8081  * individual request_irq() to register each MSI-X vector with a interrupt
8082  * handler, which is done in this function. Note that later when device is
8083  * unloading, the driver should always call free_irq() on all MSI-X vectors
8084  * it has done request_irq() on before calling pci_disable_msix(). Failure
8085  * to do so results in a BUG_ON() and a device will be left with MSI-X
8086  * enabled and leaks its vectors.
8087  *
8088  * Return codes
8089  * 0 - successful
8090  * other values - error
8091  **/
8092 static int
8093 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8094 {
8095         int vectors, rc, index;
8096
8097         /* Set up MSI-X multi-message vectors */
8098         for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
8099                 phba->sli4_hba.msix_entries[index].entry = index;
8100
8101         /* Configure MSI-X capability structure */
8102         vectors = phba->sli4_hba.cfg_eqn;
8103 enable_msix_vectors:
8104         rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
8105                              vectors);
8106         if (rc > 1) {
8107                 vectors = rc;
8108                 goto enable_msix_vectors;
8109         } else if (rc) {
8110                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8111                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
8112                 goto msi_fail_out;
8113         }
8114
8115         /* Log MSI-X vector assignment */
8116         for (index = 0; index < vectors; index++)
8117                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8118                                 "0489 MSI-X entry[%d]: vector=x%x "
8119                                 "message=%d\n", index,
8120                                 phba->sli4_hba.msix_entries[index].vector,
8121                                 phba->sli4_hba.msix_entries[index].entry);
8122
8123         /*
8124          * Assign MSI-X vectors to interrupt handlers
8125          */
8126         for (index = 0; index < vectors; index++) {
8127                 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8128                 sprintf((char *)&phba->sli4_hba.handler_name[index],
8129                          LPFC_DRIVER_HANDLER_NAME"%d", index);
8130
8131                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8132                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8133                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8134                 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
8135                                  &lpfc_sli4_hba_intr_handler, IRQF_SHARED,
8136                                  (char *)&phba->sli4_hba.handler_name[index],
8137                                  &phba->sli4_hba.fcp_eq_hdl[index]);
8138                 if (rc) {
8139                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8140                                         "0486 MSI-X fast-path (%d) "
8141                                         "request_irq failed (%d)\n", index, rc);
8142                         goto cfg_fail_out;
8143                 }
8144         }
8145         phba->sli4_hba.msix_vec_nr = vectors;
8146
8147         return rc;
8148
8149 cfg_fail_out:
8150         /* free the irq already requested */
8151         for (--index; index >= 0; index--)
8152                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8153                          &phba->sli4_hba.fcp_eq_hdl[index]);
8154
8155 msi_fail_out:
8156         /* Unconfigure MSI-X capability structure */
8157         pci_disable_msix(phba->pcidev);
8158         return rc;
8159 }
8160
8161 /**
8162  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
8163  * @phba: pointer to lpfc hba data structure.
8164  *
8165  * This routine is invoked to release the MSI-X vectors and then disable the
8166  * MSI-X interrupt mode to device with SLI-4 interface spec.
8167  **/
8168 static void
8169 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
8170 {
8171         int index;
8172
8173         /* Free up MSI-X multi-message vectors */
8174         for (index = 0; index < phba->sli4_hba.msix_vec_nr; index++)
8175                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8176                          &phba->sli4_hba.fcp_eq_hdl[index]);
8177
8178         /* Disable MSI-X */
8179         pci_disable_msix(phba->pcidev);
8180
8181         return;
8182 }
8183
8184 /**
8185  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
8186  * @phba: pointer to lpfc hba data structure.
8187  *
8188  * This routine is invoked to enable the MSI interrupt mode to device with
8189  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
8190  * to enable the MSI vector. The device driver is responsible for calling
8191  * the request_irq() to register MSI vector with a interrupt the handler,
8192  * which is done in this function.
8193  *
8194  * Return codes
8195  *      0 - successful
8196  *      other values - error
8197  **/
8198 static int
8199 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
8200 {
8201         int rc, index;
8202
8203         rc = pci_enable_msi(phba->pcidev);
8204         if (!rc)
8205                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8206                                 "0487 PCI enable MSI mode success.\n");
8207         else {
8208                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8209                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
8210                 return rc;
8211         }
8212
8213         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8214                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8215         if (rc) {
8216                 pci_disable_msi(phba->pcidev);
8217                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8218                                 "0490 MSI request_irq failed (%d)\n", rc);
8219                 return rc;
8220         }
8221
8222         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
8223                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8224                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8225         }
8226
8227         return 0;
8228 }
8229
8230 /**
8231  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
8232  * @phba: pointer to lpfc hba data structure.
8233  *
8234  * This routine is invoked to disable the MSI interrupt mode to device with
8235  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
8236  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8237  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8238  * its vector.
8239  **/
8240 static void
8241 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
8242 {
8243         free_irq(phba->pcidev->irq, phba);
8244         pci_disable_msi(phba->pcidev);
8245         return;
8246 }
8247
8248 /**
8249  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
8250  * @phba: pointer to lpfc hba data structure.
8251  *
8252  * This routine is invoked to enable device interrupt and associate driver's
8253  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
8254  * interface spec. Depends on the interrupt mode configured to the driver,
8255  * the driver will try to fallback from the configured interrupt mode to an
8256  * interrupt mode which is supported by the platform, kernel, and device in
8257  * the order of:
8258  * MSI-X -> MSI -> IRQ.
8259  *
8260  * Return codes
8261  *      0 - successful
8262  *      other values - error
8263  **/
8264 static uint32_t
8265 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8266 {
8267         uint32_t intr_mode = LPFC_INTR_ERROR;
8268         int retval, index;
8269
8270         if (cfg_mode == 2) {
8271                 /* Preparation before conf_msi mbox cmd */
8272                 retval = 0;
8273                 if (!retval) {
8274                         /* Now, try to enable MSI-X interrupt mode */
8275                         retval = lpfc_sli4_enable_msix(phba);
8276                         if (!retval) {
8277                                 /* Indicate initialization to MSI-X mode */
8278                                 phba->intr_type = MSIX;
8279                                 intr_mode = 2;
8280                         }
8281                 }
8282         }
8283
8284         /* Fallback to MSI if MSI-X initialization failed */
8285         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8286                 retval = lpfc_sli4_enable_msi(phba);
8287                 if (!retval) {
8288                         /* Indicate initialization to MSI mode */
8289                         phba->intr_type = MSI;
8290                         intr_mode = 1;
8291                 }
8292         }
8293
8294         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8295         if (phba->intr_type == NONE) {
8296                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8297                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8298                 if (!retval) {
8299                         /* Indicate initialization to INTx mode */
8300                         phba->intr_type = INTx;
8301                         intr_mode = 0;
8302                         for (index = 0; index < phba->cfg_fcp_io_channel;
8303                              index++) {
8304                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8305                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8306                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
8307                                         fcp_eq_in_use, 1);
8308                         }
8309                 }
8310         }
8311         return intr_mode;
8312 }
8313
8314 /**
8315  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
8316  * @phba: pointer to lpfc hba data structure.
8317  *
8318  * This routine is invoked to disable device interrupt and disassociate
8319  * the driver's interrupt handler(s) from interrupt vector(s) to device
8320  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
8321  * will release the interrupt vector(s) for the message signaled interrupt.
8322  **/
8323 static void
8324 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
8325 {
8326         /* Disable the currently initialized interrupt mode */
8327         if (phba->intr_type == MSIX)
8328                 lpfc_sli4_disable_msix(phba);
8329         else if (phba->intr_type == MSI)
8330                 lpfc_sli4_disable_msi(phba);
8331         else if (phba->intr_type == INTx)
8332                 free_irq(phba->pcidev->irq, phba);
8333
8334         /* Reset interrupt management states */
8335         phba->intr_type = NONE;
8336         phba->sli.slistat.sli_intr = 0;
8337
8338         return;
8339 }
8340
8341 /**
8342  * lpfc_unset_hba - Unset SLI3 hba device initialization
8343  * @phba: pointer to lpfc hba data structure.
8344  *
8345  * This routine is invoked to unset the HBA device initialization steps to
8346  * a device with SLI-3 interface spec.
8347  **/
8348 static void
8349 lpfc_unset_hba(struct lpfc_hba *phba)
8350 {
8351         struct lpfc_vport *vport = phba->pport;
8352         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
8353
8354         spin_lock_irq(shost->host_lock);
8355         vport->load_flag |= FC_UNLOADING;
8356         spin_unlock_irq(shost->host_lock);
8357
8358         kfree(phba->vpi_bmask);
8359         kfree(phba->vpi_ids);
8360
8361         lpfc_stop_hba_timers(phba);
8362
8363         phba->pport->work_port_events = 0;
8364
8365         lpfc_sli_hba_down(phba);
8366
8367         lpfc_sli_brdrestart(phba);
8368
8369         lpfc_sli_disable_intr(phba);
8370
8371         return;
8372 }
8373
8374 /**
8375  * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
8376  * @phba: pointer to lpfc hba data structure.
8377  *
8378  * This routine is invoked to unset the HBA device initialization steps to
8379  * a device with SLI-4 interface spec.
8380  **/
8381 static void
8382 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
8383 {
8384         struct lpfc_vport *vport = phba->pport;
8385         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
8386
8387         spin_lock_irq(shost->host_lock);
8388         vport->load_flag |= FC_UNLOADING;
8389         spin_unlock_irq(shost->host_lock);
8390
8391         phba->pport->work_port_events = 0;
8392
8393         /* Stop the SLI4 device port */
8394         lpfc_stop_port(phba);
8395
8396         lpfc_sli4_disable_intr(phba);
8397
8398         /* Reset SLI4 HBA FCoE function */
8399         lpfc_pci_function_reset(phba);
8400         lpfc_sli4_queue_destroy(phba);
8401
8402         return;
8403 }
8404
8405 /**
8406  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
8407  * @phba: Pointer to HBA context object.
8408  *
8409  * This function is called in the SLI4 code path to wait for completion
8410  * of device's XRIs exchange busy. It will check the XRI exchange busy
8411  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
8412  * that, it will check the XRI exchange busy on outstanding FCP and ELS
8413  * I/Os every 30 seconds, log error message, and wait forever. Only when
8414  * all XRI exchange busy complete, the driver unload shall proceed with
8415  * invoking the function reset ioctl mailbox command to the CNA and the
8416  * the rest of the driver unload resource release.
8417  **/
8418 static void
8419 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
8420 {
8421         int wait_time = 0;
8422         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8423         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8424
8425         while (!fcp_xri_cmpl || !els_xri_cmpl) {
8426                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
8427                         if (!fcp_xri_cmpl)
8428                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8429                                                 "2877 FCP XRI exchange busy "
8430                                                 "wait time: %d seconds.\n",
8431                                                 wait_time/1000);
8432                         if (!els_xri_cmpl)
8433                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8434                                                 "2878 ELS XRI exchange busy "
8435                                                 "wait time: %d seconds.\n",
8436                                                 wait_time/1000);
8437                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
8438                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
8439                 } else {
8440                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
8441                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
8442                 }
8443                 fcp_xri_cmpl =
8444                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8445                 els_xri_cmpl =
8446                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8447         }
8448 }
8449
8450 /**
8451  * lpfc_sli4_hba_unset - Unset the fcoe hba
8452  * @phba: Pointer to HBA context object.
8453  *
8454  * This function is called in the SLI4 code path to reset the HBA's FCoE
8455  * function. The caller is not required to hold any lock. This routine
8456  * issues PCI function reset mailbox command to reset the FCoE function.
8457  * At the end of the function, it calls lpfc_hba_down_post function to
8458  * free any pending commands.
8459  **/
8460 static void
8461 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8462 {
8463         int wait_cnt = 0;
8464         LPFC_MBOXQ_t *mboxq;
8465         struct pci_dev *pdev = phba->pcidev;
8466
8467         lpfc_stop_hba_timers(phba);
8468         phba->sli4_hba.intr_enable = 0;
8469
8470         /*
8471          * Gracefully wait out the potential current outstanding asynchronous
8472          * mailbox command.
8473          */
8474
8475         /* First, block any pending async mailbox command from posted */
8476         spin_lock_irq(&phba->hbalock);
8477         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8478         spin_unlock_irq(&phba->hbalock);
8479         /* Now, trying to wait it out if we can */
8480         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8481                 msleep(10);
8482                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
8483                         break;
8484         }
8485         /* Forcefully release the outstanding mailbox command if timed out */
8486         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8487                 spin_lock_irq(&phba->hbalock);
8488                 mboxq = phba->sli.mbox_active;
8489                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8490                 __lpfc_mbox_cmpl_put(phba, mboxq);
8491                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8492                 phba->sli.mbox_active = NULL;
8493                 spin_unlock_irq(&phba->hbalock);
8494         }
8495
8496         /* Abort all iocbs associated with the hba */
8497         lpfc_sli_hba_iocb_abort(phba);
8498
8499         /* Wait for completion of device XRI exchange busy */
8500         lpfc_sli4_xri_exchange_busy_wait(phba);
8501
8502         /* Disable PCI subsystem interrupt */
8503         lpfc_sli4_disable_intr(phba);
8504
8505         /* Disable SR-IOV if enabled */
8506         if (phba->cfg_sriov_nr_virtfn)
8507                 pci_disable_sriov(pdev);
8508
8509         /* Stop kthread signal shall trigger work_done one more time */
8510         kthread_stop(phba->worker_thread);
8511
8512         /* Reset SLI4 HBA FCoE function */
8513         lpfc_pci_function_reset(phba);
8514         lpfc_sli4_queue_destroy(phba);
8515
8516         /* Stop the SLI4 device port */
8517         phba->pport->work_port_events = 0;
8518 }
8519
8520  /**
8521  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
8522  * @phba: Pointer to HBA context object.
8523  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8524  *
8525  * This function is called in the SLI4 code path to read the port's
8526  * sli4 capabilities.
8527  *
8528  * This function may be be called from any context that can block-wait
8529  * for the completion.  The expectation is that this routine is called
8530  * typically from probe_one or from the online routine.
8531  **/
8532 int
8533 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8534 {
8535         int rc;
8536         struct lpfc_mqe *mqe;
8537         struct lpfc_pc_sli4_params *sli4_params;
8538         uint32_t mbox_tmo;
8539
8540         rc = 0;
8541         mqe = &mboxq->u.mqe;
8542
8543         /* Read the port's SLI4 Parameters port capabilities */
8544         lpfc_pc_sli4_params(mboxq);
8545         if (!phba->sli4_hba.intr_enable)
8546                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8547         else {
8548                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8549                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8550         }
8551
8552         if (unlikely(rc))
8553                 return 1;
8554
8555         sli4_params = &phba->sli4_hba.pc_sli4_params;
8556         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
8557         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
8558         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
8559         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
8560                                              &mqe->un.sli4_params);
8561         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
8562                                              &mqe->un.sli4_params);
8563         sli4_params->proto_types = mqe->un.sli4_params.word3;
8564         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
8565         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
8566         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
8567         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
8568         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
8569         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
8570         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
8571         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
8572         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
8573         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
8574         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
8575         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
8576         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
8577         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
8578         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
8579         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
8580         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
8581         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
8582         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
8583         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
8584
8585         /* Make sure that sge_supp_len can be handled by the driver */
8586         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8587                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8588
8589         return rc;
8590 }
8591
8592 /**
8593  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
8594  * @phba: Pointer to HBA context object.
8595  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8596  *
8597  * This function is called in the SLI4 code path to read the port's
8598  * sli4 capabilities.
8599  *
8600  * This function may be be called from any context that can block-wait
8601  * for the completion.  The expectation is that this routine is called
8602  * typically from probe_one or from the online routine.
8603  **/
8604 int
8605 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8606 {
8607         int rc;
8608         struct lpfc_mqe *mqe = &mboxq->u.mqe;
8609         struct lpfc_pc_sli4_params *sli4_params;
8610         uint32_t mbox_tmo;
8611         int length;
8612         struct lpfc_sli4_parameters *mbx_sli4_parameters;
8613
8614         /*
8615          * By default, the driver assumes the SLI4 port requires RPI
8616          * header postings.  The SLI4_PARAM response will correct this
8617          * assumption.
8618          */
8619         phba->sli4_hba.rpi_hdrs_in_use = 1;
8620
8621         /* Read the port's SLI4 Config Parameters */
8622         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
8623                   sizeof(struct lpfc_sli4_cfg_mhdr));
8624         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8625                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
8626                          length, LPFC_SLI4_MBX_EMBED);
8627         if (!phba->sli4_hba.intr_enable)
8628                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8629         else {
8630                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8631                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8632         }
8633         if (unlikely(rc))
8634                 return rc;
8635         sli4_params = &phba->sli4_hba.pc_sli4_params;
8636         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
8637         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
8638         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
8639         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
8640         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
8641                                              mbx_sli4_parameters);
8642         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
8643                                              mbx_sli4_parameters);
8644         if (bf_get(cfg_phwq, mbx_sli4_parameters))
8645                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
8646         else
8647                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
8648         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
8649         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
8650         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
8651         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
8652         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
8653         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
8654         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
8655                                             mbx_sli4_parameters);
8656         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
8657                                            mbx_sli4_parameters);
8658         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
8659         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
8660
8661         /* Make sure that sge_supp_len can be handled by the driver */
8662         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8663                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8664
8665         return 0;
8666 }
8667
8668 /**
8669  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
8670  * @pdev: pointer to PCI device
8671  * @pid: pointer to PCI device identifier
8672  *
8673  * This routine is to be called to attach a device with SLI-3 interface spec
8674  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8675  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8676  * information of the device and driver to see if the driver state that it can
8677  * support this kind of device. If the match is successful, the driver core
8678  * invokes this routine. If this routine determines it can claim the HBA, it
8679  * does all the initialization that it needs to do to handle the HBA properly.
8680  *
8681  * Return code
8682  *      0 - driver can claim the device
8683  *      negative value - driver can not claim the device
8684  **/
8685 static int __devinit
8686 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
8687 {
8688         struct lpfc_hba   *phba;
8689         struct lpfc_vport *vport = NULL;
8690         struct Scsi_Host  *shost = NULL;
8691         int error;
8692         uint32_t cfg_mode, intr_mode;
8693
8694         /* Allocate memory for HBA structure */
8695         phba = lpfc_hba_alloc(pdev);
8696         if (!phba)
8697                 return -ENOMEM;
8698
8699         /* Perform generic PCI device enabling operation */
8700         error = lpfc_enable_pci_dev(phba);
8701         if (error)
8702                 goto out_free_phba;
8703
8704         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
8705         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
8706         if (error)
8707                 goto out_disable_pci_dev;
8708
8709         /* Set up SLI-3 specific device PCI memory space */
8710         error = lpfc_sli_pci_mem_setup(phba);
8711         if (error) {
8712                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8713                                 "1402 Failed to set up pci memory space.\n");
8714                 goto out_disable_pci_dev;
8715         }
8716
8717         /* Set up phase-1 common device driver resources */
8718         error = lpfc_setup_driver_resource_phase1(phba);
8719         if (error) {
8720                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8721                                 "1403 Failed to set up driver resource.\n");
8722                 goto out_unset_pci_mem_s3;
8723         }
8724
8725         /* Set up SLI-3 specific device driver resources */
8726         error = lpfc_sli_driver_resource_setup(phba);
8727         if (error) {
8728                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8729                                 "1404 Failed to set up driver resource.\n");
8730                 goto out_unset_pci_mem_s3;
8731         }
8732
8733         /* Initialize and populate the iocb list per host */
8734         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
8735         if (error) {
8736                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8737                                 "1405 Failed to initialize iocb list.\n");
8738                 goto out_unset_driver_resource_s3;
8739         }
8740
8741         /* Set up common device driver resources */
8742         error = lpfc_setup_driver_resource_phase2(phba);
8743         if (error) {
8744                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8745                                 "1406 Failed to set up driver resource.\n");
8746                 goto out_free_iocb_list;
8747         }
8748
8749         /* Get the default values for Model Name and Description */
8750         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
8751
8752         /* Create SCSI host to the physical port */
8753         error = lpfc_create_shost(phba);
8754         if (error) {
8755                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8756                                 "1407 Failed to create scsi host.\n");
8757                 goto out_unset_driver_resource;
8758         }
8759
8760         /* Configure sysfs attributes */
8761         vport = phba->pport;
8762         error = lpfc_alloc_sysfs_attr(vport);
8763         if (error) {
8764                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8765                                 "1476 Failed to allocate sysfs attr\n");
8766                 goto out_destroy_shost;
8767         }
8768
8769         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8770         /* Now, trying to enable interrupt and bring up the device */
8771         cfg_mode = phba->cfg_use_msi;
8772         while (true) {
8773                 /* Put device to a known state before enabling interrupt */
8774                 lpfc_stop_port(phba);
8775                 /* Configure and enable interrupt */
8776                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8777                 if (intr_mode == LPFC_INTR_ERROR) {
8778                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8779                                         "0431 Failed to enable interrupt.\n");
8780                         error = -ENODEV;
8781                         goto out_free_sysfs_attr;
8782                 }
8783                 /* SLI-3 HBA setup */
8784                 if (lpfc_sli_hba_setup(phba)) {
8785                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8786                                         "1477 Failed to set up hba\n");
8787                         error = -ENODEV;
8788                         goto out_remove_device;
8789                 }
8790
8791                 /* Wait 50ms for the interrupts of previous mailbox commands */
8792                 msleep(50);
8793                 /* Check active interrupts on message signaled interrupts */
8794                 if (intr_mode == 0 ||
8795                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8796                         /* Log the current active interrupt mode */
8797                         phba->intr_mode = intr_mode;
8798                         lpfc_log_intr_mode(phba, intr_mode);
8799                         break;
8800                 } else {
8801                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8802                                         "0447 Configure interrupt mode (%d) "
8803                                         "failed active interrupt test.\n",
8804                                         intr_mode);
8805                         /* Disable the current interrupt mode */
8806                         lpfc_sli_disable_intr(phba);
8807                         /* Try next level of interrupt mode */
8808                         cfg_mode = --intr_mode;
8809                 }
8810         }
8811
8812         /* Perform post initialization setup */
8813         lpfc_post_init_setup(phba);
8814
8815         /* Check if there are static vports to be created. */
8816         lpfc_create_static_vport(phba);
8817
8818         return 0;
8819
8820 out_remove_device:
8821         lpfc_unset_hba(phba);
8822 out_free_sysfs_attr:
8823         lpfc_free_sysfs_attr(vport);
8824 out_destroy_shost:
8825         lpfc_destroy_shost(phba);
8826 out_unset_driver_resource:
8827         lpfc_unset_driver_resource_phase2(phba);
8828 out_free_iocb_list:
8829         lpfc_free_iocb_list(phba);
8830 out_unset_driver_resource_s3:
8831         lpfc_sli_driver_resource_unset(phba);
8832 out_unset_pci_mem_s3:
8833         lpfc_sli_pci_mem_unset(phba);
8834 out_disable_pci_dev:
8835         lpfc_disable_pci_dev(phba);
8836         if (shost)
8837                 scsi_host_put(shost);
8838 out_free_phba:
8839         lpfc_hba_free(phba);
8840         return error;
8841 }
8842
8843 /**
8844  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8845  * @pdev: pointer to PCI device
8846  *
8847  * This routine is to be called to disattach a device with SLI-3 interface
8848  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8849  * removed from PCI bus, it performs all the necessary cleanup for the HBA
8850  * device to be removed from the PCI subsystem properly.
8851  **/
8852 static void __devexit
8853 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8854 {
8855         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
8856         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8857         struct lpfc_vport **vports;
8858         struct lpfc_hba   *phba = vport->phba;
8859         int i;
8860         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8861
8862         spin_lock_irq(&phba->hbalock);
8863         vport->load_flag |= FC_UNLOADING;
8864         spin_unlock_irq(&phba->hbalock);
8865
8866         lpfc_free_sysfs_attr(vport);
8867
8868         /* Release all the vports against this physical port */
8869         vports = lpfc_create_vport_work_array(phba);
8870         if (vports != NULL)
8871                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
8872                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
8873                                 continue;
8874                         fc_vport_terminate(vports[i]->fc_vport);
8875                 }
8876         lpfc_destroy_vport_work_array(phba, vports);
8877
8878         /* Remove FC host and then SCSI host with the physical port */
8879         fc_remove_host(shost);
8880         scsi_remove_host(shost);
8881         lpfc_cleanup(vport);
8882
8883         /*
8884          * Bring down the SLI Layer. This step disable all interrupts,
8885          * clears the rings, discards all mailbox commands, and resets
8886          * the HBA.
8887          */
8888
8889         /* HBA interrupt will be disabled after this call */
8890         lpfc_sli_hba_down(phba);
8891         /* Stop kthread signal shall trigger work_done one more time */
8892         kthread_stop(phba->worker_thread);
8893         /* Final cleanup of txcmplq and reset the HBA */
8894         lpfc_sli_brdrestart(phba);
8895
8896         kfree(phba->vpi_bmask);
8897         kfree(phba->vpi_ids);
8898
8899         lpfc_stop_hba_timers(phba);
8900         spin_lock_irq(&phba->hbalock);
8901         list_del_init(&vport->listentry);
8902         spin_unlock_irq(&phba->hbalock);
8903
8904         lpfc_debugfs_terminate(vport);
8905
8906         /* Disable SR-IOV if enabled */
8907         if (phba->cfg_sriov_nr_virtfn)
8908                 pci_disable_sriov(pdev);
8909
8910         /* Disable interrupt */
8911         lpfc_sli_disable_intr(phba);
8912
8913         pci_set_drvdata(pdev, NULL);
8914         scsi_host_put(shost);
8915
8916         /*
8917          * Call scsi_free before mem_free since scsi bufs are released to their
8918          * corresponding pools here.
8919          */
8920         lpfc_scsi_free(phba);
8921         lpfc_mem_free_all(phba);
8922
8923         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8924                           phba->hbqslimp.virt, phba->hbqslimp.phys);
8925
8926         /* Free resources associated with SLI2 interface */
8927         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8928                           phba->slim2p.virt, phba->slim2p.phys);
8929
8930         /* unmap adapter SLIM and Control Registers */
8931         iounmap(phba->ctrl_regs_memmap_p);
8932         iounmap(phba->slim_memmap_p);
8933
8934         lpfc_hba_free(phba);
8935
8936         pci_release_selected_regions(pdev, bars);
8937         pci_disable_device(pdev);
8938 }
8939
8940 /**
8941  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8942  * @pdev: pointer to PCI device
8943  * @msg: power management message
8944  *
8945  * This routine is to be called from the kernel's PCI subsystem to support
8946  * system Power Management (PM) to device with SLI-3 interface spec. When
8947  * PM invokes this method, it quiesces the device by stopping the driver's
8948  * worker thread for the device, turning off device's interrupt and DMA,
8949  * and bring the device offline. Note that as the driver implements the
8950  * minimum PM requirements to a power-aware driver's PM support for the
8951  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8952  * to the suspend() method call will be treated as SUSPEND and the driver will
8953  * fully reinitialize its device during resume() method call, the driver will
8954  * set device to PCI_D3hot state in PCI config space instead of setting it
8955  * according to the @msg provided by the PM.
8956  *
8957  * Return code
8958  *      0 - driver suspended the device
8959  *      Error otherwise
8960  **/
8961 static int
8962 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
8963 {
8964         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8965         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8966
8967         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8968                         "0473 PCI device Power Management suspend.\n");
8969
8970         /* Bring down the device */
8971         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
8972         lpfc_offline(phba);
8973         kthread_stop(phba->worker_thread);
8974
8975         /* Disable interrupt from device */
8976         lpfc_sli_disable_intr(phba);
8977
8978         /* Save device state to PCI config space */
8979         pci_save_state(pdev);
8980         pci_set_power_state(pdev, PCI_D3hot);
8981
8982         return 0;
8983 }
8984
8985 /**
8986  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
8987  * @pdev: pointer to PCI device
8988  *
8989  * This routine is to be called from the kernel's PCI subsystem to support
8990  * system Power Management (PM) to device with SLI-3 interface spec. When PM
8991  * invokes this method, it restores the device's PCI config space state and
8992  * fully reinitializes the device and brings it online. Note that as the
8993  * driver implements the minimum PM requirements to a power-aware driver's
8994  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
8995  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
8996  * driver will fully reinitialize its device during resume() method call,
8997  * the device will be set to PCI_D0 directly in PCI config space before
8998  * restoring the state.
8999  *
9000  * Return code
9001  *      0 - driver suspended the device
9002  *      Error otherwise
9003  **/
9004 static int
9005 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9006 {
9007         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9008         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9009         uint32_t intr_mode;
9010         int error;
9011
9012         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9013                         "0452 PCI device Power Management resume.\n");
9014
9015         /* Restore device state from PCI config space */
9016         pci_set_power_state(pdev, PCI_D0);
9017         pci_restore_state(pdev);
9018
9019         /*
9020          * As the new kernel behavior of pci_restore_state() API call clears
9021          * device saved_state flag, need to save the restored state again.
9022          */
9023         pci_save_state(pdev);
9024
9025         if (pdev->is_busmaster)
9026                 pci_set_master(pdev);
9027
9028         /* Startup the kernel thread for this host adapter. */
9029         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9030                                         "lpfc_worker_%d", phba->brd_no);
9031         if (IS_ERR(phba->worker_thread)) {
9032                 error = PTR_ERR(phba->worker_thread);
9033                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9034                                 "0434 PM resume failed to start worker "
9035                                 "thread: error=x%x.\n", error);
9036                 return error;
9037         }
9038
9039         /* Configure and enable interrupt */
9040         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9041         if (intr_mode == LPFC_INTR_ERROR) {
9042                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9043                                 "0430 PM resume Failed to enable interrupt\n");
9044                 return -EIO;
9045         } else
9046                 phba->intr_mode = intr_mode;
9047
9048         /* Restart HBA and bring it online */
9049         lpfc_sli_brdrestart(phba);
9050         lpfc_online(phba);
9051
9052         /* Log the current active interrupt mode */
9053         lpfc_log_intr_mode(phba, phba->intr_mode);
9054
9055         return 0;
9056 }
9057
9058 /**
9059  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9060  * @phba: pointer to lpfc hba data structure.
9061  *
9062  * This routine is called to prepare the SLI3 device for PCI slot recover. It
9063  * aborts all the outstanding SCSI I/Os to the pci device.
9064  **/
9065 static void
9066 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9067 {
9068         struct lpfc_sli *psli = &phba->sli;
9069         struct lpfc_sli_ring  *pring;
9070
9071         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9072                         "2723 PCI channel I/O abort preparing for recovery\n");
9073
9074         /*
9075          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9076          * and let the SCSI mid-layer to retry them to recover.
9077          */
9078         pring = &psli->ring[psli->fcp_ring];
9079         lpfc_sli_abort_iocb_ring(phba, pring);
9080 }
9081
9082 /**
9083  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9084  * @phba: pointer to lpfc hba data structure.
9085  *
9086  * This routine is called to prepare the SLI3 device for PCI slot reset. It
9087  * disables the device interrupt and pci device, and aborts the internal FCP
9088  * pending I/Os.
9089  **/
9090 static void
9091 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9092 {
9093         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9094                         "2710 PCI channel disable preparing for reset\n");
9095
9096         /* Block any management I/Os to the device */
9097         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9098
9099         /* Block all SCSI devices' I/Os on the host */
9100         lpfc_scsi_dev_block(phba);
9101
9102         /* stop all timers */
9103         lpfc_stop_hba_timers(phba);
9104
9105         /* Disable interrupt and pci device */
9106         lpfc_sli_disable_intr(phba);
9107         pci_disable_device(phba->pcidev);
9108
9109         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9110         lpfc_sli_flush_fcp_rings(phba);
9111 }
9112
9113 /**
9114  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9115  * @phba: pointer to lpfc hba data structure.
9116  *
9117  * This routine is called to prepare the SLI3 device for PCI slot permanently
9118  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9119  * pending I/Os.
9120  **/
9121 static void
9122 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9123 {
9124         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9125                         "2711 PCI channel permanent disable for failure\n");
9126         /* Block all SCSI devices' I/Os on the host */
9127         lpfc_scsi_dev_block(phba);
9128
9129         /* stop all timers */
9130         lpfc_stop_hba_timers(phba);
9131
9132         /* Clean up all driver's outstanding SCSI I/Os */
9133         lpfc_sli_flush_fcp_rings(phba);
9134 }
9135
9136 /**
9137  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9138  * @pdev: pointer to PCI device.
9139  * @state: the current PCI connection state.
9140  *
9141  * This routine is called from the PCI subsystem for I/O error handling to
9142  * device with SLI-3 interface spec. This function is called by the PCI
9143  * subsystem after a PCI bus error affecting this device has been detected.
9144  * When this function is invoked, it will need to stop all the I/Os and
9145  * interrupt(s) to the device. Once that is done, it will return
9146  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9147  * as desired.
9148  *
9149  * Return codes
9150  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9151  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9152  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9153  **/
9154 static pci_ers_result_t
9155 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9156 {
9157         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9158         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9159
9160         switch (state) {
9161         case pci_channel_io_normal:
9162                 /* Non-fatal error, prepare for recovery */
9163                 lpfc_sli_prep_dev_for_recover(phba);
9164                 return PCI_ERS_RESULT_CAN_RECOVER;
9165         case pci_channel_io_frozen:
9166                 /* Fatal error, prepare for slot reset */
9167                 lpfc_sli_prep_dev_for_reset(phba);
9168                 return PCI_ERS_RESULT_NEED_RESET;
9169         case pci_channel_io_perm_failure:
9170                 /* Permanent failure, prepare for device down */
9171                 lpfc_sli_prep_dev_for_perm_failure(phba);
9172                 return PCI_ERS_RESULT_DISCONNECT;
9173         default:
9174                 /* Unknown state, prepare and request slot reset */
9175                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9176                                 "0472 Unknown PCI error state: x%x\n", state);
9177                 lpfc_sli_prep_dev_for_reset(phba);
9178                 return PCI_ERS_RESULT_NEED_RESET;
9179         }
9180 }
9181
9182 /**
9183  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
9184  * @pdev: pointer to PCI device.
9185  *
9186  * This routine is called from the PCI subsystem for error handling to
9187  * device with SLI-3 interface spec. This is called after PCI bus has been
9188  * reset to restart the PCI card from scratch, as if from a cold-boot.
9189  * During the PCI subsystem error recovery, after driver returns
9190  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9191  * recovery and then call this routine before calling the .resume method
9192  * to recover the device. This function will initialize the HBA device,
9193  * enable the interrupt, but it will just put the HBA to offline state
9194  * without passing any I/O traffic.
9195  *
9196  * Return codes
9197  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9198  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9199  */
9200 static pci_ers_result_t
9201 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
9202 {
9203         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9204         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9205         struct lpfc_sli *psli = &phba->sli;
9206         uint32_t intr_mode;
9207
9208         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9209         if (pci_enable_device_mem(pdev)) {
9210                 printk(KERN_ERR "lpfc: Cannot re-enable "
9211                         "PCI device after reset.\n");
9212                 return PCI_ERS_RESULT_DISCONNECT;
9213         }
9214
9215         pci_restore_state(pdev);
9216
9217         /*
9218          * As the new kernel behavior of pci_restore_state() API call clears
9219          * device saved_state flag, need to save the restored state again.
9220          */
9221         pci_save_state(pdev);
9222
9223         if (pdev->is_busmaster)
9224                 pci_set_master(pdev);
9225
9226         spin_lock_irq(&phba->hbalock);
9227         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9228         spin_unlock_irq(&phba->hbalock);
9229
9230         /* Configure and enable interrupt */
9231         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9232         if (intr_mode == LPFC_INTR_ERROR) {
9233                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9234                                 "0427 Cannot re-enable interrupt after "
9235                                 "slot reset.\n");
9236                 return PCI_ERS_RESULT_DISCONNECT;
9237         } else
9238                 phba->intr_mode = intr_mode;
9239
9240         /* Take device offline, it will perform cleanup */
9241         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9242         lpfc_offline(phba);
9243         lpfc_sli_brdrestart(phba);
9244
9245         /* Log the current active interrupt mode */
9246         lpfc_log_intr_mode(phba, phba->intr_mode);
9247
9248         return PCI_ERS_RESULT_RECOVERED;
9249 }
9250
9251 /**
9252  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
9253  * @pdev: pointer to PCI device
9254  *
9255  * This routine is called from the PCI subsystem for error handling to device
9256  * with SLI-3 interface spec. It is called when kernel error recovery tells
9257  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9258  * error recovery. After this call, traffic can start to flow from this device
9259  * again.
9260  */
9261 static void
9262 lpfc_io_resume_s3(struct pci_dev *pdev)
9263 {
9264         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9265         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9266
9267         /* Bring device online, it will be no-op for non-fatal error resume */
9268         lpfc_online(phba);
9269
9270         /* Clean up Advanced Error Reporting (AER) if needed */
9271         if (phba->hba_flag & HBA_AER_ENABLED)
9272                 pci_cleanup_aer_uncorrect_error_status(pdev);
9273 }
9274
9275 /**
9276  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
9277  * @phba: pointer to lpfc hba data structure.
9278  *
9279  * returns the number of ELS/CT IOCBs to reserve
9280  **/
9281 int
9282 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
9283 {
9284         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
9285
9286         if (phba->sli_rev == LPFC_SLI_REV4) {
9287                 if (max_xri <= 100)
9288                         return 10;
9289                 else if (max_xri <= 256)
9290                         return 25;
9291                 else if (max_xri <= 512)
9292                         return 50;
9293                 else if (max_xri <= 1024)
9294                         return 100;
9295                 else if (max_xri <= 1536)
9296                         return 150;
9297                 else if (max_xri <= 2048)
9298                         return 200;
9299                 else
9300                         return 250;
9301         } else
9302                 return 0;
9303 }
9304
9305 /**
9306  * lpfc_write_firmware - attempt to write a firmware image to the port
9307  * @phba: pointer to lpfc hba data structure.
9308  * @fw: pointer to firmware image returned from request_firmware.
9309  *
9310  * returns the number of bytes written if write is successful.
9311  * returns a negative error value if there were errors.
9312  * returns 0 if firmware matches currently active firmware on port.
9313  **/
9314 int
9315 lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw)
9316 {
9317         char fwrev[FW_REV_STR_SIZE];
9318         struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data;
9319         struct list_head dma_buffer_list;
9320         int i, rc = 0;
9321         struct lpfc_dmabuf *dmabuf, *next;
9322         uint32_t offset = 0, temp_offset = 0;
9323
9324         INIT_LIST_HEAD(&dma_buffer_list);
9325         if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
9326             (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
9327              LPFC_FILE_TYPE_GROUP) ||
9328             (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
9329             (be32_to_cpu(image->size) != fw->size)) {
9330                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9331                                 "3022 Invalid FW image found. "
9332                                 "Magic:%x Type:%x ID:%x\n",
9333                                 be32_to_cpu(image->magic_number),
9334                                 bf_get_be32(lpfc_grp_hdr_file_type, image),
9335                                 bf_get_be32(lpfc_grp_hdr_id, image));
9336                 return -EINVAL;
9337         }
9338         lpfc_decode_firmware_rev(phba, fwrev, 1);
9339         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
9340                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9341                                 "3023 Updating Firmware. Current Version:%s "
9342                                 "New Version:%s\n",
9343                                 fwrev, image->revision);
9344                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
9345                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
9346                                          GFP_KERNEL);
9347                         if (!dmabuf) {
9348                                 rc = -ENOMEM;
9349                                 goto out;
9350                         }
9351                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
9352                                                           SLI4_PAGE_SIZE,
9353                                                           &dmabuf->phys,
9354                                                           GFP_KERNEL);
9355                         if (!dmabuf->virt) {
9356                                 kfree(dmabuf);
9357                                 rc = -ENOMEM;
9358                                 goto out;
9359                         }
9360                         list_add_tail(&dmabuf->list, &dma_buffer_list);
9361                 }
9362                 while (offset < fw->size) {
9363                         temp_offset = offset;
9364                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
9365                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
9366                                         memcpy(dmabuf->virt,
9367                                                fw->data + temp_offset,
9368                                                fw->size - temp_offset);
9369                                         temp_offset = fw->size;
9370                                         break;
9371                                 }
9372                                 memcpy(dmabuf->virt, fw->data + temp_offset,
9373                                        SLI4_PAGE_SIZE);
9374                                 temp_offset += SLI4_PAGE_SIZE;
9375                         }
9376                         rc = lpfc_wr_object(phba, &dma_buffer_list,
9377                                     (fw->size - offset), &offset);
9378                         if (rc) {
9379                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9380                                                 "3024 Firmware update failed. "
9381                                                 "%d\n", rc);
9382                                 goto out;
9383                         }
9384                 }
9385                 rc = offset;
9386         }
9387 out:
9388         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
9389                 list_del(&dmabuf->list);
9390                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
9391                                   dmabuf->virt, dmabuf->phys);
9392                 kfree(dmabuf);
9393         }
9394         return rc;
9395 }
9396
9397 /**
9398  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
9399  * @pdev: pointer to PCI device
9400  * @pid: pointer to PCI device identifier
9401  *
9402  * This routine is called from the kernel's PCI subsystem to device with
9403  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9404  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9405  * information of the device and driver to see if the driver state that it
9406  * can support this kind of device. If the match is successful, the driver
9407  * core invokes this routine. If this routine determines it can claim the HBA,
9408  * it does all the initialization that it needs to do to handle the HBA
9409  * properly.
9410  *
9411  * Return code
9412  *      0 - driver can claim the device
9413  *      negative value - driver can not claim the device
9414  **/
9415 static int __devinit
9416 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
9417 {
9418         struct lpfc_hba   *phba;
9419         struct lpfc_vport *vport = NULL;
9420         struct Scsi_Host  *shost = NULL;
9421         int error;
9422         uint32_t cfg_mode, intr_mode;
9423         int mcnt;
9424         int adjusted_fcp_io_channel;
9425         const struct firmware *fw;
9426         uint8_t file_name[16];
9427
9428         /* Allocate memory for HBA structure */
9429         phba = lpfc_hba_alloc(pdev);
9430         if (!phba)
9431                 return -ENOMEM;
9432
9433         /* Perform generic PCI device enabling operation */
9434         error = lpfc_enable_pci_dev(phba);
9435         if (error)
9436                 goto out_free_phba;
9437
9438         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9439         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
9440         if (error)
9441                 goto out_disable_pci_dev;
9442
9443         /* Set up SLI-4 specific device PCI memory space */
9444         error = lpfc_sli4_pci_mem_setup(phba);
9445         if (error) {
9446                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9447                                 "1410 Failed to set up pci memory space.\n");
9448                 goto out_disable_pci_dev;
9449         }
9450
9451         /* Set up phase-1 common device driver resources */
9452         error = lpfc_setup_driver_resource_phase1(phba);
9453         if (error) {
9454                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9455                                 "1411 Failed to set up driver resource.\n");
9456                 goto out_unset_pci_mem_s4;
9457         }
9458
9459         /* Set up SLI-4 Specific device driver resources */
9460         error = lpfc_sli4_driver_resource_setup(phba);
9461         if (error) {
9462                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9463                                 "1412 Failed to set up driver resource.\n");
9464                 goto out_unset_pci_mem_s4;
9465         }
9466
9467         /* Initialize and populate the iocb list per host */
9468
9469         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9470                         "2821 initialize iocb list %d.\n",
9471                         phba->cfg_iocb_cnt*1024);
9472         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
9473
9474         if (error) {
9475                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9476                                 "1413 Failed to initialize iocb list.\n");
9477                 goto out_unset_driver_resource_s4;
9478         }
9479
9480         INIT_LIST_HEAD(&phba->active_rrq_list);
9481         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
9482
9483         /* Set up common device driver resources */
9484         error = lpfc_setup_driver_resource_phase2(phba);
9485         if (error) {
9486                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9487                                 "1414 Failed to set up driver resource.\n");
9488                 goto out_free_iocb_list;
9489         }
9490
9491         /* Get the default values for Model Name and Description */
9492         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9493
9494         /* Create SCSI host to the physical port */
9495         error = lpfc_create_shost(phba);
9496         if (error) {
9497                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9498                                 "1415 Failed to create scsi host.\n");
9499                 goto out_unset_driver_resource;
9500         }
9501
9502         /* Configure sysfs attributes */
9503         vport = phba->pport;
9504         error = lpfc_alloc_sysfs_attr(vport);
9505         if (error) {
9506                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9507                                 "1416 Failed to allocate sysfs attr\n");
9508                 goto out_destroy_shost;
9509         }
9510
9511         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9512         /* Now, trying to enable interrupt and bring up the device */
9513         cfg_mode = phba->cfg_use_msi;
9514         while (true) {
9515                 /* Put device to a known state before enabling interrupt */
9516                 lpfc_stop_port(phba);
9517                 /* Configure and enable interrupt */
9518                 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
9519                 if (intr_mode == LPFC_INTR_ERROR) {
9520                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9521                                         "0426 Failed to enable interrupt.\n");
9522                         error = -ENODEV;
9523                         goto out_free_sysfs_attr;
9524                 }
9525                 /* Default to single EQ for non-MSI-X */
9526                 if (phba->intr_type != MSIX)
9527                         adjusted_fcp_io_channel = 1;
9528                 else if (phba->sli4_hba.msix_vec_nr <
9529                                         phba->cfg_fcp_io_channel)
9530                         adjusted_fcp_io_channel = phba->sli4_hba.msix_vec_nr;
9531                 else
9532                         adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
9533                 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
9534                 /* Set up SLI-4 HBA */
9535                 if (lpfc_sli4_hba_setup(phba)) {
9536                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9537                                         "1421 Failed to set up hba\n");
9538                         error = -ENODEV;
9539                         goto out_disable_intr;
9540                 }
9541
9542                 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
9543                 if (intr_mode != 0)
9544                         mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
9545                                                             LPFC_ACT_INTR_CNT);
9546
9547                 /* Check active interrupts received only for MSI/MSI-X */
9548                 if (intr_mode == 0 ||
9549                     phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
9550                         /* Log the current active interrupt mode */
9551                         phba->intr_mode = intr_mode;
9552                         lpfc_log_intr_mode(phba, intr_mode);
9553                         break;
9554                 }
9555                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9556                                 "0451 Configure interrupt mode (%d) "
9557                                 "failed active interrupt test.\n",
9558                                 intr_mode);
9559                 /* Unset the previous SLI-4 HBA setup. */
9560                 /*
9561                  * TODO:  Is this operation compatible with IF TYPE 2
9562                  * devices?  All port state is deleted and cleared.
9563                  */
9564                 lpfc_sli4_unset_hba(phba);
9565                 /* Try next level of interrupt mode */
9566                 cfg_mode = --intr_mode;
9567         }
9568
9569         /* Perform post initialization setup */
9570         lpfc_post_init_setup(phba);
9571
9572         /* check for firmware upgrade or downgrade (if_type 2 only) */
9573         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
9574             LPFC_SLI_INTF_IF_TYPE_2) {
9575                 snprintf(file_name, 16, "%s.grp", phba->ModelName);
9576                 error = request_firmware(&fw, file_name, &phba->pcidev->dev);
9577                 if (!error) {
9578                         lpfc_write_firmware(phba, fw);
9579                         release_firmware(fw);
9580                 }
9581         }
9582
9583         /* Check if there are static vports to be created. */
9584         lpfc_create_static_vport(phba);
9585         return 0;
9586
9587 out_disable_intr:
9588         lpfc_sli4_disable_intr(phba);
9589 out_free_sysfs_attr:
9590         lpfc_free_sysfs_attr(vport);
9591 out_destroy_shost:
9592         lpfc_destroy_shost(phba);
9593 out_unset_driver_resource:
9594         lpfc_unset_driver_resource_phase2(phba);
9595 out_free_iocb_list:
9596         lpfc_free_iocb_list(phba);
9597 out_unset_driver_resource_s4:
9598         lpfc_sli4_driver_resource_unset(phba);
9599 out_unset_pci_mem_s4:
9600         lpfc_sli4_pci_mem_unset(phba);
9601 out_disable_pci_dev:
9602         lpfc_disable_pci_dev(phba);
9603         if (shost)
9604                 scsi_host_put(shost);
9605 out_free_phba:
9606         lpfc_hba_free(phba);
9607         return error;
9608 }
9609
9610 /**
9611  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
9612  * @pdev: pointer to PCI device
9613  *
9614  * This routine is called from the kernel's PCI subsystem to device with
9615  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9616  * removed from PCI bus, it performs all the necessary cleanup for the HBA
9617  * device to be removed from the PCI subsystem properly.
9618  **/
9619 static void __devexit
9620 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
9621 {
9622         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9623         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9624         struct lpfc_vport **vports;
9625         struct lpfc_hba *phba = vport->phba;
9626         int i;
9627
9628         /* Mark the device unloading flag */
9629         spin_lock_irq(&phba->hbalock);
9630         vport->load_flag |= FC_UNLOADING;
9631         spin_unlock_irq(&phba->hbalock);
9632
9633         /* Free the HBA sysfs attributes */
9634         lpfc_free_sysfs_attr(vport);
9635
9636         /* Release all the vports against this physical port */
9637         vports = lpfc_create_vport_work_array(phba);
9638         if (vports != NULL)
9639                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9640                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9641                                 continue;
9642                         fc_vport_terminate(vports[i]->fc_vport);
9643                 }
9644         lpfc_destroy_vport_work_array(phba, vports);
9645
9646         /* Remove FC host and then SCSI host with the physical port */
9647         fc_remove_host(shost);
9648         scsi_remove_host(shost);
9649
9650         /* Perform cleanup on the physical port */
9651         lpfc_cleanup(vport);
9652
9653         /*
9654          * Bring down the SLI Layer. This step disables all interrupts,
9655          * clears the rings, discards all mailbox commands, and resets
9656          * the HBA FCoE function.
9657          */
9658         lpfc_debugfs_terminate(vport);
9659         lpfc_sli4_hba_unset(phba);
9660
9661         spin_lock_irq(&phba->hbalock);
9662         list_del_init(&vport->listentry);
9663         spin_unlock_irq(&phba->hbalock);
9664
9665         /* Perform scsi free before driver resource_unset since scsi
9666          * buffers are released to their corresponding pools here.
9667          */
9668         lpfc_scsi_free(phba);
9669
9670         lpfc_sli4_driver_resource_unset(phba);
9671
9672         /* Unmap adapter Control and Doorbell registers */
9673         lpfc_sli4_pci_mem_unset(phba);
9674
9675         /* Release PCI resources and disable device's PCI function */
9676         scsi_host_put(shost);
9677         lpfc_disable_pci_dev(phba);
9678
9679         /* Finally, free the driver's device data structure */
9680         lpfc_hba_free(phba);
9681
9682         return;
9683 }
9684
9685 /**
9686  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
9687  * @pdev: pointer to PCI device
9688  * @msg: power management message
9689  *
9690  * This routine is called from the kernel's PCI subsystem to support system
9691  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
9692  * this method, it quiesces the device by stopping the driver's worker
9693  * thread for the device, turning off device's interrupt and DMA, and bring
9694  * the device offline. Note that as the driver implements the minimum PM
9695  * requirements to a power-aware driver's PM support for suspend/resume -- all
9696  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
9697  * method call will be treated as SUSPEND and the driver will fully
9698  * reinitialize its device during resume() method call, the driver will set
9699  * device to PCI_D3hot state in PCI config space instead of setting it
9700  * according to the @msg provided by the PM.
9701  *
9702  * Return code
9703  *      0 - driver suspended the device
9704  *      Error otherwise
9705  **/
9706 static int
9707 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
9708 {
9709         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9710         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9711
9712         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9713                         "2843 PCI device Power Management suspend.\n");
9714
9715         /* Bring down the device */
9716         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9717         lpfc_offline(phba);
9718         kthread_stop(phba->worker_thread);
9719
9720         /* Disable interrupt from device */
9721         lpfc_sli4_disable_intr(phba);
9722         lpfc_sli4_queue_destroy(phba);
9723
9724         /* Save device state to PCI config space */
9725         pci_save_state(pdev);
9726         pci_set_power_state(pdev, PCI_D3hot);
9727
9728         return 0;
9729 }
9730
9731 /**
9732  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
9733  * @pdev: pointer to PCI device
9734  *
9735  * This routine is called from the kernel's PCI subsystem to support system
9736  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
9737  * this method, it restores the device's PCI config space state and fully
9738  * reinitializes the device and brings it online. Note that as the driver
9739  * implements the minimum PM requirements to a power-aware driver's PM for
9740  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9741  * to the suspend() method call will be treated as SUSPEND and the driver
9742  * will fully reinitialize its device during resume() method call, the device
9743  * will be set to PCI_D0 directly in PCI config space before restoring the
9744  * state.
9745  *
9746  * Return code
9747  *      0 - driver suspended the device
9748  *      Error otherwise
9749  **/
9750 static int
9751 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
9752 {
9753         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9754         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9755         uint32_t intr_mode;
9756         int error;
9757
9758         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9759                         "0292 PCI device Power Management resume.\n");
9760
9761         /* Restore device state from PCI config space */
9762         pci_set_power_state(pdev, PCI_D0);
9763         pci_restore_state(pdev);
9764
9765         /*
9766          * As the new kernel behavior of pci_restore_state() API call clears
9767          * device saved_state flag, need to save the restored state again.
9768          */
9769         pci_save_state(pdev);
9770
9771         if (pdev->is_busmaster)
9772                 pci_set_master(pdev);
9773
9774          /* Startup the kernel thread for this host adapter. */
9775         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9776                                         "lpfc_worker_%d", phba->brd_no);
9777         if (IS_ERR(phba->worker_thread)) {
9778                 error = PTR_ERR(phba->worker_thread);
9779                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9780                                 "0293 PM resume failed to start worker "
9781                                 "thread: error=x%x.\n", error);
9782                 return error;
9783         }
9784
9785         /* Configure and enable interrupt */
9786         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9787         if (intr_mode == LPFC_INTR_ERROR) {
9788                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9789                                 "0294 PM resume Failed to enable interrupt\n");
9790                 return -EIO;
9791         } else
9792                 phba->intr_mode = intr_mode;
9793
9794         /* Restart HBA and bring it online */
9795         lpfc_sli_brdrestart(phba);
9796         lpfc_online(phba);
9797
9798         /* Log the current active interrupt mode */
9799         lpfc_log_intr_mode(phba, phba->intr_mode);
9800
9801         return 0;
9802 }
9803
9804 /**
9805  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
9806  * @phba: pointer to lpfc hba data structure.
9807  *
9808  * This routine is called to prepare the SLI4 device for PCI slot recover. It
9809  * aborts all the outstanding SCSI I/Os to the pci device.
9810  **/
9811 static void
9812 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
9813 {
9814         struct lpfc_sli *psli = &phba->sli;
9815         struct lpfc_sli_ring  *pring;
9816
9817         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9818                         "2828 PCI channel I/O abort preparing for recovery\n");
9819         /*
9820          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9821          * and let the SCSI mid-layer to retry them to recover.
9822          */
9823         pring = &psli->ring[psli->fcp_ring];
9824         lpfc_sli_abort_iocb_ring(phba, pring);
9825 }
9826
9827 /**
9828  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
9829  * @phba: pointer to lpfc hba data structure.
9830  *
9831  * This routine is called to prepare the SLI4 device for PCI slot reset. It
9832  * disables the device interrupt and pci device, and aborts the internal FCP
9833  * pending I/Os.
9834  **/
9835 static void
9836 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
9837 {
9838         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9839                         "2826 PCI channel disable preparing for reset\n");
9840
9841         /* Block any management I/Os to the device */
9842         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
9843
9844         /* Block all SCSI devices' I/Os on the host */
9845         lpfc_scsi_dev_block(phba);
9846
9847         /* stop all timers */
9848         lpfc_stop_hba_timers(phba);
9849
9850         /* Disable interrupt and pci device */
9851         lpfc_sli4_disable_intr(phba);
9852         lpfc_sli4_queue_destroy(phba);
9853         pci_disable_device(phba->pcidev);
9854
9855         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9856         lpfc_sli_flush_fcp_rings(phba);
9857 }
9858
9859 /**
9860  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
9861  * @phba: pointer to lpfc hba data structure.
9862  *
9863  * This routine is called to prepare the SLI4 device for PCI slot permanently
9864  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9865  * pending I/Os.
9866  **/
9867 static void
9868 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9869 {
9870         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9871                         "2827 PCI channel permanent disable for failure\n");
9872
9873         /* Block all SCSI devices' I/Os on the host */
9874         lpfc_scsi_dev_block(phba);
9875
9876         /* stop all timers */
9877         lpfc_stop_hba_timers(phba);
9878
9879         /* Clean up all driver's outstanding SCSI I/Os */
9880         lpfc_sli_flush_fcp_rings(phba);
9881 }
9882
9883 /**
9884  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
9885  * @pdev: pointer to PCI device.
9886  * @state: the current PCI connection state.
9887  *
9888  * This routine is called from the PCI subsystem for error handling to device
9889  * with SLI-4 interface spec. This function is called by the PCI subsystem
9890  * after a PCI bus error affecting this device has been detected. When this
9891  * function is invoked, it will need to stop all the I/Os and interrupt(s)
9892  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9893  * for the PCI subsystem to perform proper recovery as desired.
9894  *
9895  * Return codes
9896  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9897  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9898  **/
9899 static pci_ers_result_t
9900 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
9901 {
9902         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9903         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9904
9905         switch (state) {
9906         case pci_channel_io_normal:
9907                 /* Non-fatal error, prepare for recovery */
9908                 lpfc_sli4_prep_dev_for_recover(phba);
9909                 return PCI_ERS_RESULT_CAN_RECOVER;
9910         case pci_channel_io_frozen:
9911                 /* Fatal error, prepare for slot reset */
9912                 lpfc_sli4_prep_dev_for_reset(phba);
9913                 return PCI_ERS_RESULT_NEED_RESET;
9914         case pci_channel_io_perm_failure:
9915                 /* Permanent failure, prepare for device down */
9916                 lpfc_sli4_prep_dev_for_perm_failure(phba);
9917                 return PCI_ERS_RESULT_DISCONNECT;
9918         default:
9919                 /* Unknown state, prepare and request slot reset */
9920                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9921                                 "2825 Unknown PCI error state: x%x\n", state);
9922                 lpfc_sli4_prep_dev_for_reset(phba);
9923                 return PCI_ERS_RESULT_NEED_RESET;
9924         }
9925 }
9926
9927 /**
9928  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
9929  * @pdev: pointer to PCI device.
9930  *
9931  * This routine is called from the PCI subsystem for error handling to device
9932  * with SLI-4 interface spec. It is called after PCI bus has been reset to
9933  * restart the PCI card from scratch, as if from a cold-boot. During the
9934  * PCI subsystem error recovery, after the driver returns
9935  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9936  * recovery and then call this routine before calling the .resume method to
9937  * recover the device. This function will initialize the HBA device, enable
9938  * the interrupt, but it will just put the HBA to offline state without
9939  * passing any I/O traffic.
9940  *
9941  * Return codes
9942  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9943  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9944  */
9945 static pci_ers_result_t
9946 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
9947 {
9948         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9949         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9950         struct lpfc_sli *psli = &phba->sli;
9951         uint32_t intr_mode;
9952
9953         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9954         if (pci_enable_device_mem(pdev)) {
9955                 printk(KERN_ERR "lpfc: Cannot re-enable "
9956                         "PCI device after reset.\n");
9957                 return PCI_ERS_RESULT_DISCONNECT;
9958         }
9959
9960         pci_restore_state(pdev);
9961
9962         /*
9963          * As the new kernel behavior of pci_restore_state() API call clears
9964          * device saved_state flag, need to save the restored state again.
9965          */
9966         pci_save_state(pdev);
9967
9968         if (pdev->is_busmaster)
9969                 pci_set_master(pdev);
9970
9971         spin_lock_irq(&phba->hbalock);
9972         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9973         spin_unlock_irq(&phba->hbalock);
9974
9975         /* Configure and enable interrupt */
9976         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9977         if (intr_mode == LPFC_INTR_ERROR) {
9978                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9979                                 "2824 Cannot re-enable interrupt after "
9980                                 "slot reset.\n");
9981                 return PCI_ERS_RESULT_DISCONNECT;
9982         } else
9983                 phba->intr_mode = intr_mode;
9984
9985         /* Log the current active interrupt mode */
9986         lpfc_log_intr_mode(phba, phba->intr_mode);
9987
9988         return PCI_ERS_RESULT_RECOVERED;
9989 }
9990
9991 /**
9992  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
9993  * @pdev: pointer to PCI device
9994  *
9995  * This routine is called from the PCI subsystem for error handling to device
9996  * with SLI-4 interface spec. It is called when kernel error recovery tells
9997  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9998  * error recovery. After this call, traffic can start to flow from this device
9999  * again.
10000  **/
10001 static void
10002 lpfc_io_resume_s4(struct pci_dev *pdev)
10003 {
10004         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10005         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10006
10007         /*
10008          * In case of slot reset, as function reset is performed through
10009          * mailbox command which needs DMA to be enabled, this operation
10010          * has to be moved to the io resume phase. Taking device offline
10011          * will perform the necessary cleanup.
10012          */
10013         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10014                 /* Perform device reset */
10015                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10016                 lpfc_offline(phba);
10017                 lpfc_sli_brdrestart(phba);
10018                 /* Bring the device back online */
10019                 lpfc_online(phba);
10020         }
10021
10022         /* Clean up Advanced Error Reporting (AER) if needed */
10023         if (phba->hba_flag & HBA_AER_ENABLED)
10024                 pci_cleanup_aer_uncorrect_error_status(pdev);
10025 }
10026
10027 /**
10028  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10029  * @pdev: pointer to PCI device
10030  * @pid: pointer to PCI device identifier
10031  *
10032  * This routine is to be registered to the kernel's PCI subsystem. When an
10033  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10034  * at PCI device-specific information of the device and driver to see if the
10035  * driver state that it can support this kind of device. If the match is
10036  * successful, the driver core invokes this routine. This routine dispatches
10037  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10038  * do all the initialization that it needs to do to handle the HBA device
10039  * properly.
10040  *
10041  * Return code
10042  *      0 - driver can claim the device
10043  *      negative value - driver can not claim the device
10044  **/
10045 static int __devinit
10046 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10047 {
10048         int rc;
10049         struct lpfc_sli_intf intf;
10050
10051         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10052                 return -ENODEV;
10053
10054         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10055             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10056                 rc = lpfc_pci_probe_one_s4(pdev, pid);
10057         else
10058                 rc = lpfc_pci_probe_one_s3(pdev, pid);
10059
10060         return rc;
10061 }
10062
10063 /**
10064  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10065  * @pdev: pointer to PCI device
10066  *
10067  * This routine is to be registered to the kernel's PCI subsystem. When an
10068  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10069  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10070  * remove routine, which will perform all the necessary cleanup for the
10071  * device to be removed from the PCI subsystem properly.
10072  **/
10073 static void __devexit
10074 lpfc_pci_remove_one(struct pci_dev *pdev)
10075 {
10076         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10077         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10078
10079         switch (phba->pci_dev_grp) {
10080         case LPFC_PCI_DEV_LP:
10081                 lpfc_pci_remove_one_s3(pdev);
10082                 break;
10083         case LPFC_PCI_DEV_OC:
10084                 lpfc_pci_remove_one_s4(pdev);
10085                 break;
10086         default:
10087                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10088                                 "1424 Invalid PCI device group: 0x%x\n",
10089                                 phba->pci_dev_grp);
10090                 break;
10091         }
10092         return;
10093 }
10094
10095 /**
10096  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10097  * @pdev: pointer to PCI device
10098  * @msg: power management message
10099  *
10100  * This routine is to be registered to the kernel's PCI subsystem to support
10101  * system Power Management (PM). When PM invokes this method, it dispatches
10102  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10103  * suspend the device.
10104  *
10105  * Return code
10106  *      0 - driver suspended the device
10107  *      Error otherwise
10108  **/
10109 static int
10110 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10111 {
10112         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10113         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10114         int rc = -ENODEV;
10115
10116         switch (phba->pci_dev_grp) {
10117         case LPFC_PCI_DEV_LP:
10118                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10119                 break;
10120         case LPFC_PCI_DEV_OC:
10121                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10122                 break;
10123         default:
10124                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10125                                 "1425 Invalid PCI device group: 0x%x\n",
10126                                 phba->pci_dev_grp);
10127                 break;
10128         }
10129         return rc;
10130 }
10131
10132 /**
10133  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10134  * @pdev: pointer to PCI device
10135  *
10136  * This routine is to be registered to the kernel's PCI subsystem to support
10137  * system Power Management (PM). When PM invokes this method, it dispatches
10138  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10139  * resume the device.
10140  *
10141  * Return code
10142  *      0 - driver suspended the device
10143  *      Error otherwise
10144  **/
10145 static int
10146 lpfc_pci_resume_one(struct pci_dev *pdev)
10147 {
10148         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10149         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10150         int rc = -ENODEV;
10151
10152         switch (phba->pci_dev_grp) {
10153         case LPFC_PCI_DEV_LP:
10154                 rc = lpfc_pci_resume_one_s3(pdev);
10155                 break;
10156         case LPFC_PCI_DEV_OC:
10157                 rc = lpfc_pci_resume_one_s4(pdev);
10158                 break;
10159         default:
10160                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10161                                 "1426 Invalid PCI device group: 0x%x\n",
10162                                 phba->pci_dev_grp);
10163                 break;
10164         }
10165         return rc;
10166 }
10167
10168 /**
10169  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10170  * @pdev: pointer to PCI device.
10171  * @state: the current PCI connection state.
10172  *
10173  * This routine is registered to the PCI subsystem for error handling. This
10174  * function is called by the PCI subsystem after a PCI bus error affecting
10175  * this device has been detected. When this routine is invoked, it dispatches
10176  * the action to the proper SLI-3 or SLI-4 device error detected handling
10177  * routine, which will perform the proper error detected operation.
10178  *
10179  * Return codes
10180  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10181  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10182  **/
10183 static pci_ers_result_t
10184 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
10185 {
10186         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10187         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10188         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10189
10190         switch (phba->pci_dev_grp) {
10191         case LPFC_PCI_DEV_LP:
10192                 rc = lpfc_io_error_detected_s3(pdev, state);
10193                 break;
10194         case LPFC_PCI_DEV_OC:
10195                 rc = lpfc_io_error_detected_s4(pdev, state);
10196                 break;
10197         default:
10198                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10199                                 "1427 Invalid PCI device group: 0x%x\n",
10200                                 phba->pci_dev_grp);
10201                 break;
10202         }
10203         return rc;
10204 }
10205
10206 /**
10207  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
10208  * @pdev: pointer to PCI device.
10209  *
10210  * This routine is registered to the PCI subsystem for error handling. This
10211  * function is called after PCI bus has been reset to restart the PCI card
10212  * from scratch, as if from a cold-boot. When this routine is invoked, it
10213  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
10214  * routine, which will perform the proper device reset.
10215  *
10216  * Return codes
10217  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10218  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10219  **/
10220 static pci_ers_result_t
10221 lpfc_io_slot_reset(struct pci_dev *pdev)
10222 {
10223         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10224         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10225         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10226
10227         switch (phba->pci_dev_grp) {
10228         case LPFC_PCI_DEV_LP:
10229                 rc = lpfc_io_slot_reset_s3(pdev);
10230                 break;
10231         case LPFC_PCI_DEV_OC:
10232                 rc = lpfc_io_slot_reset_s4(pdev);
10233                 break;
10234         default:
10235                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10236                                 "1428 Invalid PCI device group: 0x%x\n",
10237                                 phba->pci_dev_grp);
10238                 break;
10239         }
10240         return rc;
10241 }
10242
10243 /**
10244  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
10245  * @pdev: pointer to PCI device
10246  *
10247  * This routine is registered to the PCI subsystem for error handling. It
10248  * is called when kernel error recovery tells the lpfc driver that it is
10249  * OK to resume normal PCI operation after PCI bus error recovery. When
10250  * this routine is invoked, it dispatches the action to the proper SLI-3
10251  * or SLI-4 device io_resume routine, which will resume the device operation.
10252  **/
10253 static void
10254 lpfc_io_resume(struct pci_dev *pdev)
10255 {
10256         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10257         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10258
10259         switch (phba->pci_dev_grp) {
10260         case LPFC_PCI_DEV_LP:
10261                 lpfc_io_resume_s3(pdev);
10262                 break;
10263         case LPFC_PCI_DEV_OC:
10264                 lpfc_io_resume_s4(pdev);
10265                 break;
10266         default:
10267                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10268                                 "1429 Invalid PCI device group: 0x%x\n",
10269                                 phba->pci_dev_grp);
10270                 break;
10271         }
10272         return;
10273 }
10274
10275 /**
10276  * lpfc_mgmt_open - method called when 'lpfcmgmt' is opened from userspace
10277  * @inode: pointer to the inode representing the lpfcmgmt device
10278  * @filep: pointer to the file representing the open lpfcmgmt device
10279  *
10280  * This routine puts a reference count on the lpfc module whenever the
10281  * character device is opened
10282  **/
10283 static int
10284 lpfc_mgmt_open(struct inode *inode, struct file *filep)
10285 {
10286         try_module_get(THIS_MODULE);
10287         return 0;
10288 }
10289
10290 /**
10291  * lpfc_mgmt_release - method called when 'lpfcmgmt' is closed in userspace
10292  * @inode: pointer to the inode representing the lpfcmgmt device
10293  * @filep: pointer to the file representing the open lpfcmgmt device
10294  *
10295  * This routine removes a reference count from the lpfc module when the
10296  * character device is closed
10297  **/
10298 static int
10299 lpfc_mgmt_release(struct inode *inode, struct file *filep)
10300 {
10301         module_put(THIS_MODULE);
10302         return 0;
10303 }
10304
10305 static struct pci_device_id lpfc_id_table[] = {
10306         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
10307                 PCI_ANY_ID, PCI_ANY_ID, },
10308         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
10309                 PCI_ANY_ID, PCI_ANY_ID, },
10310         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
10311                 PCI_ANY_ID, PCI_ANY_ID, },
10312         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
10313                 PCI_ANY_ID, PCI_ANY_ID, },
10314         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
10315                 PCI_ANY_ID, PCI_ANY_ID, },
10316         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
10317                 PCI_ANY_ID, PCI_ANY_ID, },
10318         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
10319                 PCI_ANY_ID, PCI_ANY_ID, },
10320         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
10321                 PCI_ANY_ID, PCI_ANY_ID, },
10322         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
10323                 PCI_ANY_ID, PCI_ANY_ID, },
10324         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
10325                 PCI_ANY_ID, PCI_ANY_ID, },
10326         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
10327                 PCI_ANY_ID, PCI_ANY_ID, },
10328         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
10329                 PCI_ANY_ID, PCI_ANY_ID, },
10330         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
10331                 PCI_ANY_ID, PCI_ANY_ID, },
10332         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
10333                 PCI_ANY_ID, PCI_ANY_ID, },
10334         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
10335                 PCI_ANY_ID, PCI_ANY_ID, },
10336         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
10337                 PCI_ANY_ID, PCI_ANY_ID, },
10338         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
10339                 PCI_ANY_ID, PCI_ANY_ID, },
10340         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
10341                 PCI_ANY_ID, PCI_ANY_ID, },
10342         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
10343                 PCI_ANY_ID, PCI_ANY_ID, },
10344         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
10345                 PCI_ANY_ID, PCI_ANY_ID, },
10346         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
10347                 PCI_ANY_ID, PCI_ANY_ID, },
10348         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
10349                 PCI_ANY_ID, PCI_ANY_ID, },
10350         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
10351                 PCI_ANY_ID, PCI_ANY_ID, },
10352         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
10353                 PCI_ANY_ID, PCI_ANY_ID, },
10354         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
10355                 PCI_ANY_ID, PCI_ANY_ID, },
10356         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
10357                 PCI_ANY_ID, PCI_ANY_ID, },
10358         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
10359                 PCI_ANY_ID, PCI_ANY_ID, },
10360         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
10361                 PCI_ANY_ID, PCI_ANY_ID, },
10362         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
10363                 PCI_ANY_ID, PCI_ANY_ID, },
10364         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
10365                 PCI_ANY_ID, PCI_ANY_ID, },
10366         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
10367                 PCI_ANY_ID, PCI_ANY_ID, },
10368         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
10369                 PCI_ANY_ID, PCI_ANY_ID, },
10370         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
10371                 PCI_ANY_ID, PCI_ANY_ID, },
10372         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
10373                 PCI_ANY_ID, PCI_ANY_ID, },
10374         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
10375                 PCI_ANY_ID, PCI_ANY_ID, },
10376         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
10377                 PCI_ANY_ID, PCI_ANY_ID, },
10378         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
10379                 PCI_ANY_ID, PCI_ANY_ID, },
10380         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
10381                 PCI_ANY_ID, PCI_ANY_ID, },
10382         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
10383                 PCI_ANY_ID, PCI_ANY_ID, },
10384         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
10385                 PCI_ANY_ID, PCI_ANY_ID, },
10386         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
10387                 PCI_ANY_ID, PCI_ANY_ID, },
10388         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
10389                 PCI_ANY_ID, PCI_ANY_ID, },
10390         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
10391                 PCI_ANY_ID, PCI_ANY_ID, },
10392         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
10393                 PCI_ANY_ID, PCI_ANY_ID, },
10394         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
10395                 PCI_ANY_ID, PCI_ANY_ID, },
10396         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
10397                 PCI_ANY_ID, PCI_ANY_ID, },
10398         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
10399                 PCI_ANY_ID, PCI_ANY_ID, },
10400         { 0 }
10401 };
10402
10403 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
10404
10405 static const struct pci_error_handlers lpfc_err_handler = {
10406         .error_detected = lpfc_io_error_detected,
10407         .slot_reset = lpfc_io_slot_reset,
10408         .resume = lpfc_io_resume,
10409 };
10410
10411 static struct pci_driver lpfc_driver = {
10412         .name           = LPFC_DRIVER_NAME,
10413         .id_table       = lpfc_id_table,
10414         .probe          = lpfc_pci_probe_one,
10415         .remove         = __devexit_p(lpfc_pci_remove_one),
10416         .suspend        = lpfc_pci_suspend_one,
10417         .resume         = lpfc_pci_resume_one,
10418         .err_handler    = &lpfc_err_handler,
10419 };
10420
10421 static const struct file_operations lpfc_mgmt_fop = {
10422         .open = lpfc_mgmt_open,
10423         .release = lpfc_mgmt_release,
10424 };
10425
10426 static struct miscdevice lpfc_mgmt_dev = {
10427         .minor = MISC_DYNAMIC_MINOR,
10428         .name = "lpfcmgmt",
10429         .fops = &lpfc_mgmt_fop,
10430 };
10431
10432 /**
10433  * lpfc_init - lpfc module initialization routine
10434  *
10435  * This routine is to be invoked when the lpfc module is loaded into the
10436  * kernel. The special kernel macro module_init() is used to indicate the
10437  * role of this routine to the kernel as lpfc module entry point.
10438  *
10439  * Return codes
10440  *   0 - successful
10441  *   -ENOMEM - FC attach transport failed
10442  *   all others - failed
10443  */
10444 static int __init
10445 lpfc_init(void)
10446 {
10447         int error = 0;
10448
10449         printk(LPFC_MODULE_DESC "\n");
10450         printk(LPFC_COPYRIGHT "\n");
10451
10452         error = misc_register(&lpfc_mgmt_dev);
10453         if (error)
10454                 printk(KERN_ERR "Could not register lpfcmgmt device, "
10455                         "misc_register returned with status %d", error);
10456
10457         if (lpfc_enable_npiv) {
10458                 lpfc_transport_functions.vport_create = lpfc_vport_create;
10459                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
10460         }
10461         lpfc_transport_template =
10462                                 fc_attach_transport(&lpfc_transport_functions);
10463         if (lpfc_transport_template == NULL)
10464                 return -ENOMEM;
10465         if (lpfc_enable_npiv) {
10466                 lpfc_vport_transport_template =
10467                         fc_attach_transport(&lpfc_vport_transport_functions);
10468                 if (lpfc_vport_transport_template == NULL) {
10469                         fc_release_transport(lpfc_transport_template);
10470                         return -ENOMEM;
10471                 }
10472         }
10473         error = pci_register_driver(&lpfc_driver);
10474         if (error) {
10475                 fc_release_transport(lpfc_transport_template);
10476                 if (lpfc_enable_npiv)
10477                         fc_release_transport(lpfc_vport_transport_template);
10478         }
10479
10480         return error;
10481 }
10482
10483 /**
10484  * lpfc_exit - lpfc module removal routine
10485  *
10486  * This routine is invoked when the lpfc module is removed from the kernel.
10487  * The special kernel macro module_exit() is used to indicate the role of
10488  * this routine to the kernel as lpfc module exit point.
10489  */
10490 static void __exit
10491 lpfc_exit(void)
10492 {
10493         misc_deregister(&lpfc_mgmt_dev);
10494         pci_unregister_driver(&lpfc_driver);
10495         fc_release_transport(lpfc_transport_template);
10496         if (lpfc_enable_npiv)
10497                 fc_release_transport(lpfc_vport_transport_template);
10498         if (_dump_buf_data) {
10499                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
10500                                 "_dump_buf_data at 0x%p\n",
10501                                 (1L << _dump_buf_data_order), _dump_buf_data);
10502                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
10503         }
10504
10505         if (_dump_buf_dif) {
10506                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
10507                                 "_dump_buf_dif at 0x%p\n",
10508                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
10509                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
10510         }
10511 }
10512
10513 module_init(lpfc_init);
10514 module_exit(lpfc_exit);
10515 MODULE_LICENSE("GPL");
10516 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
10517 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
10518 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);