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) 2004-2014 Emulex.  All rights reserved.           *
   5  * EMULEX and SLI are trademarks of Emulex.                        *
   6  * www.emulex.com                                                  *
   7  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
   8  *                                                                 *
   9  * This program is free software; you can redistribute it and/or   *
  10  * modify it under the terms of version 2 of the GNU General       *
  11  * Public License as published by the Free Software Foundation.    *
  12  * This program is distributed in the hope that it will be useful. *
  13  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  14  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  15  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  16  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  17  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  18  * more details, a copy of which can be found in the file COPYING  *
  19  * included with this package.                                     *
  20  *******************************************************************/
  21
  22 #include <linux/blkdev.h>
  23 #include <linux/delay.h>
  24 #include <linux/dma-mapping.h>
  25 #include <linux/idr.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/module.h>
  28 #include <linux/kthread.h>
  29 #include <linux/pci.h>
  30 #include <linux/spinlock.h>
  31 #include <linux/ctype.h>
  32 #include <linux/aer.h>
  33 #include <linux/slab.h>
  34 #include <linux/firmware.h>
  35 #include <linux/miscdevice.h>
  36 #include <linux/percpu.h>
  37
  38 #include <scsi/scsi.h>
  39 #include <scsi/scsi_device.h>
  40 #include <scsi/scsi_host.h>
  41 #include <scsi/scsi_transport_fc.h>
  42
  43 #include "lpfc_hw4.h"
  44 #include "lpfc_hw.h"
  45 #include "lpfc_sli.h"
  46 #include "lpfc_sli4.h"
  47 #include "lpfc_nl.h"
  48 #include "lpfc_disc.h"
  49 #include "lpfc_scsi.h"
  50 #include "lpfc.h"
  51 #include "lpfc_logmsg.h"
  52 #include "lpfc_crtn.h"
  53 #include "lpfc_vport.h"
  54 #include "lpfc_version.h"
  55
  56 char *_dump_buf_data;
  57 unsigned long _dump_buf_data_order;
  58 char *_dump_buf_dif;
  59 unsigned long _dump_buf_dif_order;
  60 spinlock_t _dump_buf_lock;
  61
  62 /* Used when mapping IRQ vectors in a driver centric manner */
  63 uint16_t *lpfc_used_cpu;
  64 uint32_t lpfc_present_cpu;
  65
  66 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  67 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  68 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  69 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  70 static int lpfc_setup_endian_order(struct lpfc_hba *);
  71 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  72 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  73 static void lpfc_init_sgl_list(struct lpfc_hba *);
  74 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  75 static void lpfc_free_active_sgl(struct lpfc_hba *);
  76 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  77 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  78 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  79 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  80 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  81 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  82 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  83 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  84
  85 static struct scsi_transport_template *lpfc_transport_template = NULL;
  86 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  87 static DEFINE_IDR(lpfc_hba_index);
  88
  89 /**
  90  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  91  * @phba: pointer to lpfc hba data structure.
  92  *
  93  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  94  * mailbox command. It retrieves the revision information from the HBA and
  95  * collects the Vital Product Data (VPD) about the HBA for preparing the
  96  * configuration of the HBA.
  97  *
  98  * Return codes:
  99  *   0 - success.
 100  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 101  *   Any other value - indicates an error.
 102  **/
 103 int
 104 lpfc_config_port_prep(struct lpfc_hba *phba)
 105 {
 106         lpfc_vpd_t *vp = &phba->vpd;
 107         int i = 0, rc;
 108         LPFC_MBOXQ_t *pmb;
 109         MAILBOX_t *mb;
 110         char *lpfc_vpd_data = NULL;
 111         uint16_t offset = 0;
 112         static char licensed[56] =
 113                     "key unlock for use with gnu public licensed code only\0";
 114         static int init_key = 1;
 115
 116         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 117         if (!pmb) {
 118                 phba->link_state = LPFC_HBA_ERROR;
 119                 return -ENOMEM;
 120         }
 121
 122         mb = &pmb->u.mb;
 123         phba->link_state = LPFC_INIT_MBX_CMDS;
 124
 125         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 126                 if (init_key) {
 127                         uint32_t *ptext = (uint32_t *) licensed;
 128
 129                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 130                                 *ptext = cpu_to_be32(*ptext);
 131                         init_key = 0;
 132                 }
 133
 134                 lpfc_read_nv(phba, pmb);
 135                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 136                         sizeof (mb->un.varRDnvp.rsvd3));
 137                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 138                          sizeof (licensed));
 139
 140                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 141
 142                 if (rc != MBX_SUCCESS) {
 143                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 144                                         "0324 Config Port initialization "
 145                                         "error, mbxCmd x%x READ_NVPARM, "
 146                                         "mbxStatus x%x\n",
 147                                         mb->mbxCommand, mb->mbxStatus);
 148                         mempool_free(pmb, phba->mbox_mem_pool);
 149                         return -ERESTART;
 150                 }
 151                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 152                        sizeof(phba->wwnn));
 153                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 154                        sizeof(phba->wwpn));
 155         }
 156
 157         phba->sli3_options = 0x0;
 158
 159         /* Setup and issue mailbox READ REV command */
 160         lpfc_read_rev(phba, pmb);
 161         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 162         if (rc != MBX_SUCCESS) {
 163                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 164                                 "0439 Adapter failed to init, mbxCmd x%x "
 165                                 "READ_REV, mbxStatus x%x\n",
 166                                 mb->mbxCommand, mb->mbxStatus);
 167                 mempool_free( pmb, phba->mbox_mem_pool);
 168                 return -ERESTART;
 169         }
 170
 171
 172         /*
 173          * The value of rr must be 1 since the driver set the cv field to 1.
 174          * This setting requires the FW to set all revision fields.
 175          */
 176         if (mb->un.varRdRev.rr == 0) {
 177                 vp->rev.rBit = 0;
 178                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 179                                 "0440 Adapter failed to init, READ_REV has "
 180                                 "missing revision information.\n");
 181                 mempool_free(pmb, phba->mbox_mem_pool);
 182                 return -ERESTART;
 183         }
 184
 185         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 186                 mempool_free(pmb, phba->mbox_mem_pool);
 187                 return -EINVAL;
 188         }
 189
 190         /* Save information as VPD data */
 191         vp->rev.rBit = 1;
 192         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 193         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 194         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 195         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 196         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 197         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 198         vp->rev.smRev = mb->un.varRdRev.smRev;
 199         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 200         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 201         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 202         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 203         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 204         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 205         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 206         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 207
 208         /* If the sli feature level is less then 9, we must
 209          * tear down all RPIs and VPIs on link down if NPIV
 210          * is enabled.
 211          */
 212         if (vp->rev.feaLevelHigh < 9)
 213                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 214
 215         if (lpfc_is_LC_HBA(phba->pcidev->device))
 216                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 217                                                 sizeof (phba->RandomData));
 218
 219         /* Get adapter VPD information */
 220         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 221         if (!lpfc_vpd_data)
 222                 goto out_free_mbox;
 223         do {
 224                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 225                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 226
 227                 if (rc != MBX_SUCCESS) {
 228                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 229                                         "0441 VPD not present on adapter, "
 230                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 231                                         mb->mbxCommand, mb->mbxStatus);
 232                         mb->un.varDmp.word_cnt = 0;
 233                 }
 234                 /* dump mem may return a zero when finished or we got a
 235                  * mailbox error, either way we are done.
 236                  */
 237                 if (mb->un.varDmp.word_cnt == 0)
 238                         break;
 239                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 240                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 241                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 242                                       lpfc_vpd_data + offset,
 243                                       mb->un.varDmp.word_cnt);
 244                 offset += mb->un.varDmp.word_cnt;
 245         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 246         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 247
 248         kfree(lpfc_vpd_data);
 249 out_free_mbox:
 250         mempool_free(pmb, phba->mbox_mem_pool);
 251         return 0;
 252 }
 253
 254 /**
 255  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 256  * @phba: pointer to lpfc hba data structure.
 257  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 258  *
 259  * This is the completion handler for driver's configuring asynchronous event
 260  * mailbox command to the device. If the mailbox command returns successfully,
 261  * it will set internal async event support flag to 1; otherwise, it will
 262  * set internal async event support flag to 0.
 263  **/
 264 static void
 265 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 266 {
 267         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 268                 phba->temp_sensor_support = 1;
 269         else
 270                 phba->temp_sensor_support = 0;
 271         mempool_free(pmboxq, phba->mbox_mem_pool);
 272         return;
 273 }
 274
 275 /**
 276  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 277  * @phba: pointer to lpfc hba data structure.
 278  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 279  *
 280  * This is the completion handler for dump mailbox command for getting
 281  * wake up parameters. When this command complete, the response contain
 282  * Option rom version of the HBA. This function translate the version number
 283  * into a human readable string and store it in OptionROMVersion.
 284  **/
 285 static void
 286 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 287 {
 288         struct prog_id *prg;
 289         uint32_t prog_id_word;
 290         char dist = ' ';
 291         /* character array used for decoding dist type. */
 292         char dist_char[] = "nabx";
 293
 294         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 295                 mempool_free(pmboxq, phba->mbox_mem_pool);
 296                 return;
 297         }
 298
 299         prg = (struct prog_id *) &prog_id_word;
 300
 301         /* word 7 contain option rom version */
 302         prog_id_word = pmboxq->u.mb.un.varWords[7];
 303
 304         /* Decode the Option rom version word to a readable string */
 305         if (prg->dist < 4)
 306                 dist = dist_char[prg->dist];
 307
 308         if ((prg->dist == 3) && (prg->num == 0))
 309                 sprintf(phba->OptionROMVersion, "%d.%d%d",
 310                         prg->ver, prg->rev, prg->lev);
 311         else
 312                 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
 313                         prg->ver, prg->rev, prg->lev,
 314                         dist, prg->num);
 315         mempool_free(pmboxq, phba->mbox_mem_pool);
 316         return;
 317 }
 318
 319 /**
 320  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 321  *      cfg_soft_wwnn, cfg_soft_wwpn
 322  * @vport: pointer to lpfc vport data structure.
 323  *
 324  *
 325  * Return codes
 326  *   None.
 327  **/
 328 void
 329 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 330 {
 331         /* If the soft name exists then update it using the service params */
 332         if (vport->phba->cfg_soft_wwnn)
 333                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 334                            vport->fc_sparam.nodeName.u.wwn);
 335         if (vport->phba->cfg_soft_wwpn)
 336                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 337                            vport->fc_sparam.portName.u.wwn);
 338
 339         /*
 340          * If the name is empty or there exists a soft name
 341          * then copy the service params name, otherwise use the fc name
 342          */
 343         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 344                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 345                         sizeof(struct lpfc_name));
 346         else
 347                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 348                         sizeof(struct lpfc_name));
 349
 350         if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
 351                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 352                         sizeof(struct lpfc_name));
 353         else
 354                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 355                         sizeof(struct lpfc_name));
 356 }
 357
 358 /**
 359  * lpfc_config_port_post - Perform lpfc initialization after config port
 360  * @phba: pointer to lpfc hba data structure.
 361  *
 362  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 363  * command call. It performs all internal resource and state setups on the
 364  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 365  * ELS ring timers, etc.
 366  *
 367  * Return codes
 368  *   0 - success.
 369  *   Any other value - error.
 370  **/
 371 int
 372 lpfc_config_port_post(struct lpfc_hba *phba)
 373 {
 374         struct lpfc_vport *vport = phba->pport;
 375         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 376         LPFC_MBOXQ_t *pmb;
 377         MAILBOX_t *mb;
 378         struct lpfc_dmabuf *mp;
 379         struct lpfc_sli *psli = &phba->sli;
 380         uint32_t status, timeout;
 381         int i, j;
 382         int rc;
 383
 384         spin_lock_irq(&phba->hbalock);
 385         /*
 386          * If the Config port completed correctly the HBA is not
 387          * over heated any more.
 388          */
 389         if (phba->over_temp_state == HBA_OVER_TEMP)
 390                 phba->over_temp_state = HBA_NORMAL_TEMP;
 391         spin_unlock_irq(&phba->hbalock);
 392
 393         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 394         if (!pmb) {
 395                 phba->link_state = LPFC_HBA_ERROR;
 396                 return -ENOMEM;
 397         }
 398         mb = &pmb->u.mb;
 399
 400         /* Get login parameters for NID.  */
 401         rc = lpfc_read_sparam(phba, pmb, 0);
 402         if (rc) {
 403                 mempool_free(pmb, phba->mbox_mem_pool);
 404                 return -ENOMEM;
 405         }
 406
 407         pmb->vport = vport;
 408         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 409                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 410                                 "0448 Adapter failed init, mbxCmd x%x "
 411                                 "READ_SPARM mbxStatus x%x\n",
 412                                 mb->mbxCommand, mb->mbxStatus);
 413                 phba->link_state = LPFC_HBA_ERROR;
 414                 mp = (struct lpfc_dmabuf *) pmb->context1;
 415                 mempool_free(pmb, phba->mbox_mem_pool);
 416                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 417                 kfree(mp);
 418                 return -EIO;
 419         }
 420
 421         mp = (struct lpfc_dmabuf *) pmb->context1;
 422
 423         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 424         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 425         kfree(mp);
 426         pmb->context1 = NULL;
 427         lpfc_update_vport_wwn(vport);
 428
 429         /* Update the fc_host data structures with new wwn. */
 430         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 431         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 432         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 433
 434         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 435         /* This should be consolidated into parse_vpd ? - mr */
 436         if (phba->SerialNumber[0] == 0) {
 437                 uint8_t *outptr;
 438
 439                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 440                 for (i = 0; i < 12; i++) {
 441                         status = *outptr++;
 442                         j = ((status & 0xf0) >> 4);
 443                         if (j <= 9)
 444                                 phba->SerialNumber[i] =
 445                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 446                         else
 447                                 phba->SerialNumber[i] =
 448                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 449                         i++;
 450                         j = (status & 0xf);
 451                         if (j <= 9)
 452                                 phba->SerialNumber[i] =
 453                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 454                         else
 455                                 phba->SerialNumber[i] =
 456                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 457                 }
 458         }
 459
 460         lpfc_read_config(phba, pmb);
 461         pmb->vport = vport;
 462         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 463                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 464                                 "0453 Adapter failed to init, mbxCmd x%x "
 465                                 "READ_CONFIG, mbxStatus x%x\n",
 466                                 mb->mbxCommand, mb->mbxStatus);
 467                 phba->link_state = LPFC_HBA_ERROR;
 468                 mempool_free( pmb, phba->mbox_mem_pool);
 469                 return -EIO;
 470         }
 471
 472         /* Check if the port is disabled */
 473         lpfc_sli_read_link_ste(phba);
 474
 475         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 476         i = (mb->un.varRdConfig.max_xri + 1);
 477         if (phba->cfg_hba_queue_depth > i) {
 478                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 479                                 "3359 HBA queue depth changed from %d to %d\n",
 480                                 phba->cfg_hba_queue_depth, i);
 481                 phba->cfg_hba_queue_depth = i;
 482         }
 483
 484         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 485         i = (mb->un.varRdConfig.max_xri >> 3);
 486         if (phba->pport->cfg_lun_queue_depth > i) {
 487                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 488                                 "3360 LUN queue depth changed from %d to %d\n",
 489                                 phba->pport->cfg_lun_queue_depth, i);
 490                 phba->pport->cfg_lun_queue_depth = i;
 491         }
 492
 493         phba->lmt = mb->un.varRdConfig.lmt;
 494
 495         /* Get the default values for Model Name and Description */
 496         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 497
 498         phba->link_state = LPFC_LINK_DOWN;
 499
 500         /* Only process IOCBs on ELS ring till hba_state is READY */
 501         if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
 502                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 503         if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
 504                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 505         if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
 506                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 507
 508         /* Post receive buffers for desired rings */
 509         if (phba->sli_rev != 3)
 510                 lpfc_post_rcv_buf(phba);
 511
 512         /*
 513          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 514          */
 515         if (phba->intr_type == MSIX) {
 516                 rc = lpfc_config_msi(phba, pmb);
 517                 if (rc) {
 518                         mempool_free(pmb, phba->mbox_mem_pool);
 519                         return -EIO;
 520                 }
 521                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 522                 if (rc != MBX_SUCCESS) {
 523                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 524                                         "0352 Config MSI mailbox command "
 525                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 526                                         pmb->u.mb.mbxCommand,
 527                                         pmb->u.mb.mbxStatus);
 528                         mempool_free(pmb, phba->mbox_mem_pool);
 529                         return -EIO;
 530                 }
 531         }
 532
 533         spin_lock_irq(&phba->hbalock);
 534         /* Initialize ERATT handling flag */
 535         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 536
 537         /* Enable appropriate host interrupts */
 538         if (lpfc_readl(phba->HCregaddr, &status)) {
 539                 spin_unlock_irq(&phba->hbalock);
 540                 return -EIO;
 541         }
 542         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 543         if (psli->num_rings > 0)
 544                 status |= HC_R0INT_ENA;
 545         if (psli->num_rings > 1)
 546                 status |= HC_R1INT_ENA;
 547         if (psli->num_rings > 2)
 548                 status |= HC_R2INT_ENA;
 549         if (psli->num_rings > 3)
 550                 status |= HC_R3INT_ENA;
 551
 552         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 553             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 554                 status &= ~(HC_R0INT_ENA);
 555
 556         writel(status, phba->HCregaddr);
 557         readl(phba->HCregaddr); /* flush */
 558         spin_unlock_irq(&phba->hbalock);
 559
 560         /* Set up ring-0 (ELS) timer */
 561         timeout = phba->fc_ratov * 2;
 562         mod_timer(&vport->els_tmofunc,
 563                   jiffies + msecs_to_jiffies(1000 * timeout));
 564         /* Set up heart beat (HB) timer */
 565         mod_timer(&phba->hb_tmofunc,
 566                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 567         phba->hb_outstanding = 0;
 568         phba->last_completion_time = jiffies;
 569         /* Set up error attention (ERATT) polling timer */
 570         mod_timer(&phba->eratt_poll,
 571                   jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
 572
 573         if (phba->hba_flag & LINK_DISABLED) {
 574                 lpfc_printf_log(phba,
 575                         KERN_ERR, LOG_INIT,
 576                         "2598 Adapter Link is disabled.\n");
 577                 lpfc_down_link(phba, pmb);
 578                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 579                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 580                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 581                         lpfc_printf_log(phba,
 582                         KERN_ERR, LOG_INIT,
 583                         "2599 Adapter failed to issue DOWN_LINK"
 584                         " mbox command rc 0x%x\n", rc);
 585
 586                         mempool_free(pmb, phba->mbox_mem_pool);
 587                         return -EIO;
 588                 }
 589         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 590                 mempool_free(pmb, phba->mbox_mem_pool);
 591                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 592                 if (rc)
 593                         return rc;
 594         }
 595         /* MBOX buffer will be freed in mbox compl */
 596         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 597         if (!pmb) {
 598                 phba->link_state = LPFC_HBA_ERROR;
 599                 return -ENOMEM;
 600         }
 601
 602         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 603         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 604         pmb->vport = phba->pport;
 605         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 606
 607         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 608                 lpfc_printf_log(phba,
 609                                 KERN_ERR,
 610                                 LOG_INIT,
 611                                 "0456 Adapter failed to issue "
 612                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 613                                 rc);
 614                 mempool_free(pmb, phba->mbox_mem_pool);
 615         }
 616
 617         /* Get Option rom version */
 618         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 619         if (!pmb) {
 620                 phba->link_state = LPFC_HBA_ERROR;
 621                 return -ENOMEM;
 622         }
 623
 624         lpfc_dump_wakeup_param(phba, pmb);
 625         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 626         pmb->vport = phba->pport;
 627         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 628
 629         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 630                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 631                                 "to get Option ROM version status x%x\n", rc);
 632                 mempool_free(pmb, phba->mbox_mem_pool);
 633         }
 634
 635         return 0;
 636 }
 637
 638 /**
 639  * lpfc_hba_init_link - Initialize the FC link
 640  * @phba: pointer to lpfc hba data structure.
 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(struct lpfc_hba *phba, uint32_t flag)
 654 {
 655         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 656 }
 657
 658 /**
 659  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 660  * @phba: pointer to lpfc hba data structure.
 661  * @fc_topology: desired fc topology.
 662  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 663  *
 664  * This routine will issue the INIT_LINK mailbox command call.
 665  * It is available to other drivers through the lpfc_hba data
 666  * structure for use as a delayed link up mechanism with the
 667  * module parameter lpfc_suppress_link_up.
 668  *
 669  * Return code
 670  *              0 - success
 671  *              Any other value - error
 672  **/
 673 int
 674 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 675                                uint32_t flag)
 676 {
 677         struct lpfc_vport *vport = phba->pport;
 678         LPFC_MBOXQ_t *pmb;
 679         MAILBOX_t *mb;
 680         int rc;
 681
 682         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 683         if (!pmb) {
 684                 phba->link_state = LPFC_HBA_ERROR;
 685                 return -ENOMEM;
 686         }
 687         mb = &pmb->u.mb;
 688         pmb->vport = vport;
 689
 690         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 691             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 692              !(phba->lmt & LMT_1Gb)) ||
 693             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 694              !(phba->lmt & LMT_2Gb)) ||
 695             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 696              !(phba->lmt & LMT_4Gb)) ||
 697             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 698              !(phba->lmt & LMT_8Gb)) ||
 699             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 700              !(phba->lmt & LMT_10Gb)) ||
 701             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 702              !(phba->lmt & LMT_16Gb))) {
 703                 /* Reset link speed to auto */
 704                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 705                         "1302 Invalid speed for this board:%d "
 706                         "Reset link speed to auto.\n",
 707                         phba->cfg_link_speed);
 708                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 709         }
 710         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 711         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 712         if (phba->sli_rev < LPFC_SLI_REV4)
 713                 lpfc_set_loopback_flag(phba);
 714         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 715         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 716                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 717                         "0498 Adapter failed to init, mbxCmd x%x "
 718                         "INIT_LINK, mbxStatus x%x\n",
 719                         mb->mbxCommand, mb->mbxStatus);
 720                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 721                         /* Clear all interrupt enable conditions */
 722                         writel(0, phba->HCregaddr);
 723                         readl(phba->HCregaddr); /* flush */
 724                         /* Clear all pending interrupts */
 725                         writel(0xffffffff, phba->HAregaddr);
 726                         readl(phba->HAregaddr); /* flush */
 727                 }
 728                 phba->link_state = LPFC_HBA_ERROR;
 729                 if (rc != MBX_BUSY || flag == MBX_POLL)
 730                         mempool_free(pmb, phba->mbox_mem_pool);
 731                 return -EIO;
 732         }
 733         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 734         if (flag == MBX_POLL)
 735                 mempool_free(pmb, phba->mbox_mem_pool);
 736
 737         return 0;
 738 }
 739
 740 /**
 741  * lpfc_hba_down_link - this routine downs the FC link
 742  * @phba: pointer to lpfc hba data structure.
 743  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 744  *
 745  * This routine will issue the DOWN_LINK mailbox command call.
 746  * It is available to other drivers through the lpfc_hba data
 747  * structure for use to stop the link.
 748  *
 749  * Return code
 750  *              0 - success
 751  *              Any other value - error
 752  **/
 753 int
 754 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 755 {
 756         LPFC_MBOXQ_t *pmb;
 757         int rc;
 758
 759         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 760         if (!pmb) {
 761                 phba->link_state = LPFC_HBA_ERROR;
 762                 return -ENOMEM;
 763         }
 764
 765         lpfc_printf_log(phba,
 766                 KERN_ERR, LOG_INIT,
 767                 "0491 Adapter Link is disabled.\n");
 768         lpfc_down_link(phba, pmb);
 769         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 770         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 771         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 772                 lpfc_printf_log(phba,
 773                 KERN_ERR, LOG_INIT,
 774                 "2522 Adapter failed to issue DOWN_LINK"
 775                 " mbox command rc 0x%x\n", rc);
 776
 777                 mempool_free(pmb, phba->mbox_mem_pool);
 778                 return -EIO;
 779         }
 780         if (flag == MBX_POLL)
 781                 mempool_free(pmb, phba->mbox_mem_pool);
 782
 783         return 0;
 784 }
 785
 786 /**
 787  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 788  * @phba: pointer to lpfc HBA data structure.
 789  *
 790  * This routine will do LPFC uninitialization before the HBA is reset when
 791  * bringing down the SLI Layer.
 792  *
 793  * Return codes
 794  *   0 - success.
 795  *   Any other value - error.
 796  **/
 797 int
 798 lpfc_hba_down_prep(struct lpfc_hba *phba)
 799 {
 800         struct lpfc_vport **vports;
 801         int i;
 802
 803         if (phba->sli_rev <= LPFC_SLI_REV3) {
 804                 /* Disable interrupts */
 805                 writel(0, phba->HCregaddr);
 806                 readl(phba->HCregaddr); /* flush */
 807         }
 808
 809         if (phba->pport->load_flag & FC_UNLOADING)
 810                 lpfc_cleanup_discovery_resources(phba->pport);
 811         else {
 812                 vports = lpfc_create_vport_work_array(phba);
 813                 if (vports != NULL)
 814                         for (i = 0; i <= phba->max_vports &&
 815                                 vports[i] != NULL; i++)
 816                                 lpfc_cleanup_discovery_resources(vports[i]);
 817                 lpfc_destroy_vport_work_array(phba, vports);
 818         }
 819         return 0;
 820 }
 821
 822 /**
 823  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 824  * rspiocb which got deferred
 825  *
 826  * @phba: pointer to lpfc HBA data structure.
 827  *
 828  * This routine will cleanup completed slow path events after HBA is reset
 829  * when bringing down the SLI Layer.
 830  *
 831  *
 832  * Return codes
 833  *   void.
 834  **/
 835 static void
 836 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 837 {
 838         struct lpfc_iocbq *rspiocbq;
 839         struct hbq_dmabuf *dmabuf;
 840         struct lpfc_cq_event *cq_event;
 841
 842         spin_lock_irq(&phba->hbalock);
 843         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 844         spin_unlock_irq(&phba->hbalock);
 845
 846         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 847                 /* Get the response iocb from the head of work queue */
 848                 spin_lock_irq(&phba->hbalock);
 849                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 850                                  cq_event, struct lpfc_cq_event, list);
 851                 spin_unlock_irq(&phba->hbalock);
 852
 853                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 854                 case CQE_CODE_COMPL_WQE:
 855                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 856                                                  cq_event);
 857                         lpfc_sli_release_iocbq(phba, rspiocbq);
 858                         break;
 859                 case CQE_CODE_RECEIVE:
 860                 case CQE_CODE_RECEIVE_V1:
 861                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 862                                               cq_event);
 863                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 864                 }
 865         }
 866 }
 867
 868 /**
 869  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 870  * @phba: pointer to lpfc HBA data structure.
 871  *
 872  * This routine will cleanup posted ELS buffers after the HBA is reset
 873  * when bringing down the SLI Layer.
 874  *
 875  *
 876  * Return codes
 877  *   void.
 878  **/
 879 static void
 880 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 881 {
 882         struct lpfc_sli *psli = &phba->sli;
 883         struct lpfc_sli_ring *pring;
 884         struct lpfc_dmabuf *mp, *next_mp;
 885         LIST_HEAD(buflist);
 886         int count;
 887
 888         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 889                 lpfc_sli_hbqbuf_free_all(phba);
 890         else {
 891                 /* Cleanup preposted buffers on the ELS ring */
 892                 pring = &psli->ring[LPFC_ELS_RING];
 893                 spin_lock_irq(&phba->hbalock);
 894                 list_splice_init(&pring->postbufq, &buflist);
 895                 spin_unlock_irq(&phba->hbalock);
 896
 897                 count = 0;
 898                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 899                         list_del(&mp->list);
 900                         count++;
 901                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 902                         kfree(mp);
 903                 }
 904
 905                 spin_lock_irq(&phba->hbalock);
 906                 pring->postbufq_cnt -= count;
 907                 spin_unlock_irq(&phba->hbalock);
 908         }
 909 }
 910
 911 /**
 912  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 913  * @phba: pointer to lpfc HBA data structure.
 914  *
 915  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 916  * down the SLI Layer.
 917  *
 918  * Return codes
 919  *   void
 920  **/
 921 static void
 922 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 923 {
 924         struct lpfc_sli *psli = &phba->sli;
 925         struct lpfc_sli_ring *pring;
 926         LIST_HEAD(completions);
 927         int i;
 928
 929         for (i = 0; i < psli->num_rings; i++) {
 930                 pring = &psli->ring[i];
 931                 if (phba->sli_rev >= LPFC_SLI_REV4)
 932                         spin_lock_irq(&pring->ring_lock);
 933                 else
 934                         spin_lock_irq(&phba->hbalock);
 935                 /* At this point in time the HBA is either reset or DOA. Either
 936                  * way, nothing should be on txcmplq as it will NEVER complete.
 937                  */
 938                 list_splice_init(&pring->txcmplq, &completions);
 939                 pring->txcmplq_cnt = 0;
 940
 941                 if (phba->sli_rev >= LPFC_SLI_REV4)
 942                         spin_unlock_irq(&pring->ring_lock);
 943                 else
 944                         spin_unlock_irq(&phba->hbalock);
 945
 946                 /* Cancel all the IOCBs from the completions list */
 947                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 948                                       IOERR_SLI_ABORTED);
 949                 lpfc_sli_abort_iocb_ring(phba, pring);
 950         }
 951 }
 952
 953 /**
 954  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 955         int i;
 956  * @phba: pointer to lpfc HBA data structure.
 957  *
 958  * This routine will do uninitialization after the HBA is reset when bring
 959  * down the SLI Layer.
 960  *
 961  * Return codes
 962  *   0 - success.
 963  *   Any other value - error.
 964  **/
 965 static int
 966 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 967 {
 968         lpfc_hba_free_post_buf(phba);
 969         lpfc_hba_clean_txcmplq(phba);
 970         return 0;
 971 }
 972
 973 /**
 974  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 975  * @phba: pointer to lpfc HBA data structure.
 976  *
 977  * This routine will do uninitialization after the HBA is reset when bring
 978  * down the SLI Layer.
 979  *
 980  * Return codes
 981  *   0 - success.
 982  *   Any other value - error.
 983  **/
 984 static int
 985 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 986 {
 987         struct lpfc_scsi_buf *psb, *psb_next;
 988         LIST_HEAD(aborts);
 989         unsigned long iflag = 0;
 990         struct lpfc_sglq *sglq_entry = NULL;
 991
 992         lpfc_hba_free_post_buf(phba);
 993         lpfc_hba_clean_txcmplq(phba);
 994
 995         /* At this point in time the HBA is either reset or DOA. Either
 996          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
 997          * on the lpfc_sgl_list so that it can either be freed if the
 998          * driver is unloading or reposted if the driver is restarting
 999          * the port.
1000          */
1001         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
1002                                         /* scsl_buf_list */
1003         /* abts_sgl_list_lock required because worker thread uses this
1004          * list.
1005          */
1006         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
1007         list_for_each_entry(sglq_entry,
1008                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1009                 sglq_entry->state = SGL_FREED;
1010
1011         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1012                         &phba->sli4_hba.lpfc_sgl_list);
1013         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
1014         /* abts_scsi_buf_list_lock required because worker thread uses this
1015          * list.
1016          */
1017         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1018         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1019                         &aborts);
1020         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1021         spin_unlock_irq(&phba->hbalock);
1022
1023         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1024                 psb->pCmd = NULL;
1025                 psb->status = IOSTAT_SUCCESS;
1026         }
1027         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1028         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1029         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1030
1031         lpfc_sli4_free_sp_events(phba);
1032         return 0;
1033 }
1034
1035 /**
1036  * lpfc_hba_down_post - Wrapper func for hba down post routine
1037  * @phba: pointer to lpfc HBA data structure.
1038  *
1039  * This routine wraps the actual SLI3 or SLI4 routine for performing
1040  * uninitialization after the HBA is reset when bring down the SLI Layer.
1041  *
1042  * Return codes
1043  *   0 - success.
1044  *   Any other value - error.
1045  **/
1046 int
1047 lpfc_hba_down_post(struct lpfc_hba *phba)
1048 {
1049         return (*phba->lpfc_hba_down_post)(phba);
1050 }
1051
1052 /**
1053  * lpfc_hb_timeout - The HBA-timer timeout handler
1054  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1055  *
1056  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1057  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1058  * work-port-events bitmap and the worker thread is notified. This timeout
1059  * event will be used by the worker thread to invoke the actual timeout
1060  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1061  * be performed in the timeout handler and the HBA timeout event bit shall
1062  * be cleared by the worker thread after it has taken the event bitmap out.
1063  **/
1064 static void
1065 lpfc_hb_timeout(unsigned long ptr)
1066 {
1067         struct lpfc_hba *phba;
1068         uint32_t tmo_posted;
1069         unsigned long iflag;
1070
1071         phba = (struct lpfc_hba *)ptr;
1072
1073         /* Check for heart beat timeout conditions */
1074         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1075         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1076         if (!tmo_posted)
1077                 phba->pport->work_port_events |= WORKER_HB_TMO;
1078         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1079
1080         /* Tell the worker thread there is work to do */
1081         if (!tmo_posted)
1082                 lpfc_worker_wake_up(phba);
1083         return;
1084 }
1085
1086 /**
1087  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1088  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1089  *
1090  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1091  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1092  * work-port-events bitmap and the worker thread is notified. This timeout
1093  * event will be used by the worker thread to invoke the actual timeout
1094  * handler routine, lpfc_rrq_handler. Any periodical operations will
1095  * be performed in the timeout handler and the RRQ timeout event bit shall
1096  * be cleared by the worker thread after it has taken the event bitmap out.
1097  **/
1098 static void
1099 lpfc_rrq_timeout(unsigned long ptr)
1100 {
1101         struct lpfc_hba *phba;
1102         unsigned long iflag;
1103
1104         phba = (struct lpfc_hba *)ptr;
1105         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1106         if (!(phba->pport->load_flag & FC_UNLOADING))
1107                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1108         else
1109                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1110         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1111
1112         if (!(phba->pport->load_flag & FC_UNLOADING))
1113                 lpfc_worker_wake_up(phba);
1114 }
1115
1116 /**
1117  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1118  * @phba: pointer to lpfc hba data structure.
1119  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1120  *
1121  * This is the callback function to the lpfc heart-beat mailbox command.
1122  * If configured, the lpfc driver issues the heart-beat mailbox command to
1123  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1124  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1125  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1126  * heart-beat outstanding state. Once the mailbox command comes back and
1127  * no error conditions detected, the heart-beat mailbox command timer is
1128  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1129  * state is cleared for the next heart-beat. If the timer expired with the
1130  * heart-beat outstanding state set, the driver will put the HBA offline.
1131  **/
1132 static void
1133 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1134 {
1135         unsigned long drvr_flag;
1136
1137         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1138         phba->hb_outstanding = 0;
1139         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1140
1141         /* Check and reset heart-beat timer is necessary */
1142         mempool_free(pmboxq, phba->mbox_mem_pool);
1143         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1144                 !(phba->link_state == LPFC_HBA_ERROR) &&
1145                 !(phba->pport->load_flag & FC_UNLOADING))
1146                 mod_timer(&phba->hb_tmofunc,
1147                           jiffies +
1148                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1149         return;
1150 }
1151
1152 /**
1153  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1154  * @phba: pointer to lpfc hba data structure.
1155  *
1156  * This is the actual HBA-timer timeout handler to be invoked by the worker
1157  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1158  * handler performs any periodic operations needed for the device. If such
1159  * periodic event has already been attended to either in the interrupt handler
1160  * or by processing slow-ring or fast-ring events within the HBA-timer
1161  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1162  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1163  * is configured and there is no heart-beat mailbox command outstanding, a
1164  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1165  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1166  * to offline.
1167  **/
1168 void
1169 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1170 {
1171         struct lpfc_vport **vports;
1172         LPFC_MBOXQ_t *pmboxq;
1173         struct lpfc_dmabuf *buf_ptr;
1174         int retval, i;
1175         struct lpfc_sli *psli = &phba->sli;
1176         LIST_HEAD(completions);
1177
1178         vports = lpfc_create_vport_work_array(phba);
1179         if (vports != NULL)
1180                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1181                         lpfc_rcv_seq_check_edtov(vports[i]);
1182         lpfc_destroy_vport_work_array(phba, vports);
1183
1184         if ((phba->link_state == LPFC_HBA_ERROR) ||
1185                 (phba->pport->load_flag & FC_UNLOADING) ||
1186                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1187                 return;
1188
1189         spin_lock_irq(&phba->pport->work_port_lock);
1190
1191         if (time_after(phba->last_completion_time +
1192                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1193                         jiffies)) {
1194                 spin_unlock_irq(&phba->pport->work_port_lock);
1195                 if (!phba->hb_outstanding)
1196                         mod_timer(&phba->hb_tmofunc,
1197                                 jiffies +
1198                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1199                 else
1200                         mod_timer(&phba->hb_tmofunc,
1201                                 jiffies +
1202                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1203                 return;
1204         }
1205         spin_unlock_irq(&phba->pport->work_port_lock);
1206
1207         if (phba->elsbuf_cnt &&
1208                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1209                 spin_lock_irq(&phba->hbalock);
1210                 list_splice_init(&phba->elsbuf, &completions);
1211                 phba->elsbuf_cnt = 0;
1212                 phba->elsbuf_prev_cnt = 0;
1213                 spin_unlock_irq(&phba->hbalock);
1214
1215                 while (!list_empty(&completions)) {
1216                         list_remove_head(&completions, buf_ptr,
1217                                 struct lpfc_dmabuf, list);
1218                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1219                         kfree(buf_ptr);
1220                 }
1221         }
1222         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1223
1224         /* If there is no heart beat outstanding, issue a heartbeat command */
1225         if (phba->cfg_enable_hba_heartbeat) {
1226                 if (!phba->hb_outstanding) {
1227                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1228                                 (list_empty(&psli->mboxq))) {
1229                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1230                                                         GFP_KERNEL);
1231                                 if (!pmboxq) {
1232                                         mod_timer(&phba->hb_tmofunc,
1233                                                  jiffies +
1234                                                  msecs_to_jiffies(1000 *
1235                                                  LPFC_HB_MBOX_INTERVAL));
1236                                         return;
1237                                 }
1238
1239                                 lpfc_heart_beat(phba, pmboxq);
1240                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1241                                 pmboxq->vport = phba->pport;
1242                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1243                                                 MBX_NOWAIT);
1244
1245                                 if (retval != MBX_BUSY &&
1246                                         retval != MBX_SUCCESS) {
1247                                         mempool_free(pmboxq,
1248                                                         phba->mbox_mem_pool);
1249                                         mod_timer(&phba->hb_tmofunc,
1250                                                 jiffies +
1251                                                 msecs_to_jiffies(1000 *
1252                                                 LPFC_HB_MBOX_INTERVAL));
1253                                         return;
1254                                 }
1255                                 phba->skipped_hb = 0;
1256                                 phba->hb_outstanding = 1;
1257                         } else if (time_before_eq(phba->last_completion_time,
1258                                         phba->skipped_hb)) {
1259                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1260                                         "2857 Last completion time not "
1261                                         " updated in %d ms\n",
1262                                         jiffies_to_msecs(jiffies
1263                                                  - phba->last_completion_time));
1264                         } else
1265                                 phba->skipped_hb = jiffies;
1266
1267                         mod_timer(&phba->hb_tmofunc,
1268                                  jiffies +
1269                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1270                         return;
1271                 } else {
1272                         /*
1273                         * If heart beat timeout called with hb_outstanding set
1274                         * we need to give the hb mailbox cmd a chance to
1275                         * complete or TMO.
1276                         */
1277                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1278                                         "0459 Adapter heartbeat still out"
1279                                         "standing:last compl time was %d ms.\n",
1280                                         jiffies_to_msecs(jiffies
1281                                                  - phba->last_completion_time));
1282                         mod_timer(&phba->hb_tmofunc,
1283                                 jiffies +
1284                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1285                 }
1286         }
1287 }
1288
1289 /**
1290  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1291  * @phba: pointer to lpfc hba data structure.
1292  *
1293  * This routine is called to bring the HBA offline when HBA hardware error
1294  * other than Port Error 6 has been detected.
1295  **/
1296 static void
1297 lpfc_offline_eratt(struct lpfc_hba *phba)
1298 {
1299         struct lpfc_sli   *psli = &phba->sli;
1300
1301         spin_lock_irq(&phba->hbalock);
1302         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1303         spin_unlock_irq(&phba->hbalock);
1304         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1305
1306         lpfc_offline(phba);
1307         lpfc_reset_barrier(phba);
1308         spin_lock_irq(&phba->hbalock);
1309         lpfc_sli_brdreset(phba);
1310         spin_unlock_irq(&phba->hbalock);
1311         lpfc_hba_down_post(phba);
1312         lpfc_sli_brdready(phba, HS_MBRDY);
1313         lpfc_unblock_mgmt_io(phba);
1314         phba->link_state = LPFC_HBA_ERROR;
1315         return;
1316 }
1317
1318 /**
1319  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1320  * @phba: pointer to lpfc hba data structure.
1321  *
1322  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1323  * other than Port Error 6 has been detected.
1324  **/
1325 void
1326 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1327 {
1328         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1329         lpfc_offline(phba);
1330         lpfc_sli4_brdreset(phba);
1331         lpfc_hba_down_post(phba);
1332         lpfc_sli4_post_status_check(phba);
1333         lpfc_unblock_mgmt_io(phba);
1334         phba->link_state = LPFC_HBA_ERROR;
1335 }
1336
1337 /**
1338  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1339  * @phba: pointer to lpfc hba data structure.
1340  *
1341  * This routine is invoked to handle the deferred HBA hardware error
1342  * conditions. This type of error is indicated by HBA by setting ER1
1343  * and another ER bit in the host status register. The driver will
1344  * wait until the ER1 bit clears before handling the error condition.
1345  **/
1346 static void
1347 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1348 {
1349         uint32_t old_host_status = phba->work_hs;
1350         struct lpfc_sli *psli = &phba->sli;
1351
1352         /* If the pci channel is offline, ignore possible errors,
1353          * since we cannot communicate with the pci card anyway.
1354          */
1355         if (pci_channel_offline(phba->pcidev)) {
1356                 spin_lock_irq(&phba->hbalock);
1357                 phba->hba_flag &= ~DEFER_ERATT;
1358                 spin_unlock_irq(&phba->hbalock);
1359                 return;
1360         }
1361
1362         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1363                 "0479 Deferred Adapter Hardware Error "
1364                 "Data: x%x x%x x%x\n",
1365                 phba->work_hs,
1366                 phba->work_status[0], phba->work_status[1]);
1367
1368         spin_lock_irq(&phba->hbalock);
1369         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1370         spin_unlock_irq(&phba->hbalock);
1371
1372
1373         /*
1374          * Firmware stops when it triggred erratt. That could cause the I/Os
1375          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1376          * SCSI layer retry it after re-establishing link.
1377          */
1378         lpfc_sli_abort_fcp_rings(phba);
1379
1380         /*
1381          * There was a firmware error. Take the hba offline and then
1382          * attempt to restart it.
1383          */
1384         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1385         lpfc_offline(phba);
1386
1387         /* Wait for the ER1 bit to clear.*/
1388         while (phba->work_hs & HS_FFER1) {
1389                 msleep(100);
1390                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1391                         phba->work_hs = UNPLUG_ERR ;
1392                         break;
1393                 }
1394                 /* If driver is unloading let the worker thread continue */
1395                 if (phba->pport->load_flag & FC_UNLOADING) {
1396                         phba->work_hs = 0;
1397                         break;
1398                 }
1399         }
1400
1401         /*
1402          * This is to ptrotect against a race condition in which
1403          * first write to the host attention register clear the
1404          * host status register.
1405          */
1406         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1407                 phba->work_hs = old_host_status & ~HS_FFER1;
1408
1409         spin_lock_irq(&phba->hbalock);
1410         phba->hba_flag &= ~DEFER_ERATT;
1411         spin_unlock_irq(&phba->hbalock);
1412         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1413         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1414 }
1415
1416 static void
1417 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1418 {
1419         struct lpfc_board_event_header board_event;
1420         struct Scsi_Host *shost;
1421
1422         board_event.event_type = FC_REG_BOARD_EVENT;
1423         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1424         shost = lpfc_shost_from_vport(phba->pport);
1425         fc_host_post_vendor_event(shost, fc_get_event_number(),
1426                                   sizeof(board_event),
1427                                   (char *) &board_event,
1428                                   LPFC_NL_VENDOR_ID);
1429 }
1430
1431 /**
1432  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1433  * @phba: pointer to lpfc hba data structure.
1434  *
1435  * This routine is invoked to handle the following HBA hardware error
1436  * conditions:
1437  * 1 - HBA error attention interrupt
1438  * 2 - DMA ring index out of range
1439  * 3 - Mailbox command came back as unknown
1440  **/
1441 static void
1442 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1443 {
1444         struct lpfc_vport *vport = phba->pport;
1445         struct lpfc_sli   *psli = &phba->sli;
1446         uint32_t event_data;
1447         unsigned long temperature;
1448         struct temp_event temp_event_data;
1449         struct Scsi_Host  *shost;
1450
1451         /* If the pci channel is offline, ignore possible errors,
1452          * since we cannot communicate with the pci card anyway.
1453          */
1454         if (pci_channel_offline(phba->pcidev)) {
1455                 spin_lock_irq(&phba->hbalock);
1456                 phba->hba_flag &= ~DEFER_ERATT;
1457                 spin_unlock_irq(&phba->hbalock);
1458                 return;
1459         }
1460
1461         /* If resets are disabled then leave the HBA alone and return */
1462         if (!phba->cfg_enable_hba_reset)
1463                 return;
1464
1465         /* Send an internal error event to mgmt application */
1466         lpfc_board_errevt_to_mgmt(phba);
1467
1468         if (phba->hba_flag & DEFER_ERATT)
1469                 lpfc_handle_deferred_eratt(phba);
1470
1471         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1472                 if (phba->work_hs & HS_FFER6)
1473                         /* Re-establishing Link */
1474                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1475                                         "1301 Re-establishing Link "
1476                                         "Data: x%x x%x x%x\n",
1477                                         phba->work_hs, phba->work_status[0],
1478                                         phba->work_status[1]);
1479                 if (phba->work_hs & HS_FFER8)
1480                         /* Device Zeroization */
1481                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1482                                         "2861 Host Authentication device "
1483                                         "zeroization Data:x%x x%x x%x\n",
1484                                         phba->work_hs, phba->work_status[0],
1485                                         phba->work_status[1]);
1486
1487                 spin_lock_irq(&phba->hbalock);
1488                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1489                 spin_unlock_irq(&phba->hbalock);
1490
1491                 /*
1492                 * Firmware stops when it triggled erratt with HS_FFER6.
1493                 * That could cause the I/Os dropped by the firmware.
1494                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1495                 * retry it after re-establishing link.
1496                 */
1497                 lpfc_sli_abort_fcp_rings(phba);
1498
1499                 /*
1500                  * There was a firmware error.  Take the hba offline and then
1501                  * attempt to restart it.
1502                  */
1503                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1504                 lpfc_offline(phba);
1505                 lpfc_sli_brdrestart(phba);
1506                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1507                         lpfc_unblock_mgmt_io(phba);
1508                         return;
1509                 }
1510                 lpfc_unblock_mgmt_io(phba);
1511         } else if (phba->work_hs & HS_CRIT_TEMP) {
1512                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1513                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1514                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1515                 temp_event_data.data = (uint32_t)temperature;
1516
1517                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1518                                 "0406 Adapter maximum temperature exceeded "
1519                                 "(%ld), taking this port offline "
1520                                 "Data: x%x x%x x%x\n",
1521                                 temperature, phba->work_hs,
1522                                 phba->work_status[0], phba->work_status[1]);
1523
1524                 shost = lpfc_shost_from_vport(phba->pport);
1525                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1526                                           sizeof(temp_event_data),
1527                                           (char *) &temp_event_data,
1528                                           SCSI_NL_VID_TYPE_PCI
1529                                           | PCI_VENDOR_ID_EMULEX);
1530
1531                 spin_lock_irq(&phba->hbalock);
1532                 phba->over_temp_state = HBA_OVER_TEMP;
1533                 spin_unlock_irq(&phba->hbalock);
1534                 lpfc_offline_eratt(phba);
1535
1536         } else {
1537                 /* The if clause above forces this code path when the status
1538                  * failure is a value other than FFER6. Do not call the offline
1539                  * twice. This is the adapter hardware error path.
1540                  */
1541                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1542                                 "0457 Adapter Hardware Error "
1543                                 "Data: x%x x%x x%x\n",
1544                                 phba->work_hs,
1545                                 phba->work_status[0], phba->work_status[1]);
1546
1547                 event_data = FC_REG_DUMP_EVENT;
1548                 shost = lpfc_shost_from_vport(vport);
1549                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1550                                 sizeof(event_data), (char *) &event_data,
1551                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1552
1553                 lpfc_offline_eratt(phba);
1554         }
1555         return;
1556 }
1557
1558 /**
1559  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1560  * @phba: pointer to lpfc hba data structure.
1561  * @mbx_action: flag for mailbox shutdown action.
1562  *
1563  * This routine is invoked to perform an SLI4 port PCI function reset in
1564  * response to port status register polling attention. It waits for port
1565  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1566  * During this process, interrupt vectors are freed and later requested
1567  * for handling possible port resource change.
1568  **/
1569 static int
1570 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1571                             bool en_rn_msg)
1572 {
1573         int rc;
1574         uint32_t intr_mode;
1575
1576         /*
1577          * On error status condition, driver need to wait for port
1578          * ready before performing reset.
1579          */
1580         rc = lpfc_sli4_pdev_status_reg_wait(phba);
1581         if (!rc) {
1582                 /* need reset: attempt for port recovery */
1583                 if (en_rn_msg)
1584                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1585                                         "2887 Reset Needed: Attempting Port "
1586                                         "Recovery...\n");
1587                 lpfc_offline_prep(phba, mbx_action);
1588                 lpfc_offline(phba);
1589                 /* release interrupt for possible resource change */
1590                 lpfc_sli4_disable_intr(phba);
1591                 lpfc_sli_brdrestart(phba);
1592                 /* request and enable interrupt */
1593                 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1594                 if (intr_mode == LPFC_INTR_ERROR) {
1595                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1596                                         "3175 Failed to enable interrupt\n");
1597                         return -EIO;
1598                 } else {
1599                         phba->intr_mode = intr_mode;
1600                 }
1601                 rc = lpfc_online(phba);
1602                 if (rc == 0)
1603                         lpfc_unblock_mgmt_io(phba);
1604         }
1605         return rc;
1606 }
1607
1608 /**
1609  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1610  * @phba: pointer to lpfc hba data structure.
1611  *
1612  * This routine is invoked to handle the SLI4 HBA hardware error attention
1613  * conditions.
1614  **/
1615 static void
1616 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1617 {
1618         struct lpfc_vport *vport = phba->pport;
1619         uint32_t event_data;
1620         struct Scsi_Host *shost;
1621         uint32_t if_type;
1622         struct lpfc_register portstat_reg = {0};
1623         uint32_t reg_err1, reg_err2;
1624         uint32_t uerrlo_reg, uemasklo_reg;
1625         uint32_t pci_rd_rc1, pci_rd_rc2;
1626         bool en_rn_msg = true;
1627         int rc;
1628
1629         /* If the pci channel is offline, ignore possible errors, since
1630          * we cannot communicate with the pci card anyway.
1631          */
1632         if (pci_channel_offline(phba->pcidev))
1633                 return;
1634         /* If resets are disabled then leave the HBA alone and return */
1635         if (!phba->cfg_enable_hba_reset)
1636                 return;
1637
1638         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1639         switch (if_type) {
1640         case LPFC_SLI_INTF_IF_TYPE_0:
1641                 pci_rd_rc1 = lpfc_readl(
1642                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1643                                 &uerrlo_reg);
1644                 pci_rd_rc2 = lpfc_readl(
1645                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1646                                 &uemasklo_reg);
1647                 /* consider PCI bus read error as pci_channel_offline */
1648                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1649                         return;
1650                 lpfc_sli4_offline_eratt(phba);
1651                 break;
1652         case LPFC_SLI_INTF_IF_TYPE_2:
1653                 pci_rd_rc1 = lpfc_readl(
1654                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1655                                 &portstat_reg.word0);
1656                 /* consider PCI bus read error as pci_channel_offline */
1657                 if (pci_rd_rc1 == -EIO) {
1658                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1659                                 "3151 PCI bus read access failure: x%x\n",
1660                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1661                         return;
1662                 }
1663                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1664                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1665                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1666                         /* TODO: Register for Overtemp async events. */
1667                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1668                                 "2889 Port Overtemperature event, "
1669                                 "taking port offline\n");
1670                         spin_lock_irq(&phba->hbalock);
1671                         phba->over_temp_state = HBA_OVER_TEMP;
1672                         spin_unlock_irq(&phba->hbalock);
1673                         lpfc_sli4_offline_eratt(phba);
1674                         break;
1675                 }
1676                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1677                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1678                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1679                                         "3143 Port Down: Firmware Update "
1680                                         "Detected\n");
1681                         en_rn_msg = false;
1682                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1683                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1684                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1685                                         "3144 Port Down: Debug Dump\n");
1686                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1687                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1688                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1689                                         "3145 Port Down: Provisioning\n");
1690
1691                 /* Check port status register for function reset */
1692                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1693                                 en_rn_msg);
1694                 if (rc == 0) {
1695                         /* don't report event on forced debug dump */
1696                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1697                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1698                                 return;
1699                         else
1700                                 break;
1701                 }
1702                 /* fall through for not able to recover */
1703                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1704                                 "3152 Unrecoverable error, bring the port "
1705                                 "offline\n");
1706                 lpfc_sli4_offline_eratt(phba);
1707                 break;
1708         case LPFC_SLI_INTF_IF_TYPE_1:
1709         default:
1710                 break;
1711         }
1712         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1713                         "3123 Report dump event to upper layer\n");
1714         /* Send an internal error event to mgmt application */
1715         lpfc_board_errevt_to_mgmt(phba);
1716
1717         event_data = FC_REG_DUMP_EVENT;
1718         shost = lpfc_shost_from_vport(vport);
1719         fc_host_post_vendor_event(shost, fc_get_event_number(),
1720                                   sizeof(event_data), (char *) &event_data,
1721                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1722 }
1723
1724 /**
1725  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1726  * @phba: pointer to lpfc HBA data structure.
1727  *
1728  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1729  * routine from the API jump table function pointer from the lpfc_hba struct.
1730  *
1731  * Return codes
1732  *   0 - success.
1733  *   Any other value - error.
1734  **/
1735 void
1736 lpfc_handle_eratt(struct lpfc_hba *phba)
1737 {
1738         (*phba->lpfc_handle_eratt)(phba);
1739 }
1740
1741 /**
1742  * lpfc_handle_latt - The HBA link event handler
1743  * @phba: pointer to lpfc hba data structure.
1744  *
1745  * This routine is invoked from the worker thread to handle a HBA host
1746  * attention link event.
1747  **/
1748 void
1749 lpfc_handle_latt(struct lpfc_hba *phba)
1750 {
1751         struct lpfc_vport *vport = phba->pport;
1752         struct lpfc_sli   *psli = &phba->sli;
1753         LPFC_MBOXQ_t *pmb;
1754         volatile uint32_t control;
1755         struct lpfc_dmabuf *mp;
1756         int rc = 0;
1757
1758         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1759         if (!pmb) {
1760                 rc = 1;
1761                 goto lpfc_handle_latt_err_exit;
1762         }
1763
1764         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1765         if (!mp) {
1766                 rc = 2;
1767                 goto lpfc_handle_latt_free_pmb;
1768         }
1769
1770         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1771         if (!mp->virt) {
1772                 rc = 3;
1773                 goto lpfc_handle_latt_free_mp;
1774         }
1775
1776         /* Cleanup any outstanding ELS commands */
1777         lpfc_els_flush_all_cmd(phba);
1778
1779         psli->slistat.link_event++;
1780         lpfc_read_topology(phba, pmb, mp);
1781         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1782         pmb->vport = vport;
1783         /* Block ELS IOCBs until we have processed this mbox command */
1784         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1785         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1786         if (rc == MBX_NOT_FINISHED) {
1787                 rc = 4;
1788                 goto lpfc_handle_latt_free_mbuf;
1789         }
1790
1791         /* Clear Link Attention in HA REG */
1792         spin_lock_irq(&phba->hbalock);
1793         writel(HA_LATT, phba->HAregaddr);
1794         readl(phba->HAregaddr); /* flush */
1795         spin_unlock_irq(&phba->hbalock);
1796
1797         return;
1798
1799 lpfc_handle_latt_free_mbuf:
1800         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1801         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1802 lpfc_handle_latt_free_mp:
1803         kfree(mp);
1804 lpfc_handle_latt_free_pmb:
1805         mempool_free(pmb, phba->mbox_mem_pool);
1806 lpfc_handle_latt_err_exit:
1807         /* Enable Link attention interrupts */
1808         spin_lock_irq(&phba->hbalock);
1809         psli->sli_flag |= LPFC_PROCESS_LA;
1810         control = readl(phba->HCregaddr);
1811         control |= HC_LAINT_ENA;
1812         writel(control, phba->HCregaddr);
1813         readl(phba->HCregaddr); /* flush */
1814
1815         /* Clear Link Attention in HA REG */
1816         writel(HA_LATT, phba->HAregaddr);
1817         readl(phba->HAregaddr); /* flush */
1818         spin_unlock_irq(&phba->hbalock);
1819         lpfc_linkdown(phba);
1820         phba->link_state = LPFC_HBA_ERROR;
1821
1822         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1823                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1824
1825         return;
1826 }
1827
1828 /**
1829  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1830  * @phba: pointer to lpfc hba data structure.
1831  * @vpd: pointer to the vital product data.
1832  * @len: length of the vital product data in bytes.
1833  *
1834  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1835  * an array of characters. In this routine, the ModelName, ProgramType, and
1836  * ModelDesc, etc. fields of the phba data structure will be populated.
1837  *
1838  * Return codes
1839  *   0 - pointer to the VPD passed in is NULL
1840  *   1 - success
1841  **/
1842 int
1843 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1844 {
1845         uint8_t lenlo, lenhi;
1846         int Length;
1847         int i, j;
1848         int finished = 0;
1849         int index = 0;
1850
1851         if (!vpd)
1852                 return 0;
1853
1854         /* Vital Product */
1855         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1856                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1857                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1858                         (uint32_t) vpd[3]);
1859         while (!finished && (index < (len - 4))) {
1860                 switch (vpd[index]) {
1861                 case 0x82:
1862                 case 0x91:
1863                         index += 1;
1864                         lenlo = vpd[index];
1865                         index += 1;
1866                         lenhi = vpd[index];
1867                         index += 1;
1868                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1869                         index += i;
1870                         break;
1871                 case 0x90:
1872                         index += 1;
1873                         lenlo = vpd[index];
1874                         index += 1;
1875                         lenhi = vpd[index];
1876                         index += 1;
1877                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1878                         if (Length > len - index)
1879                                 Length = len - index;
1880                         while (Length > 0) {
1881                         /* Look for Serial Number */
1882                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1883                                 index += 2;
1884                                 i = vpd[index];
1885                                 index += 1;
1886                                 j = 0;
1887                                 Length -= (3+i);
1888                                 while(i--) {
1889                                         phba->SerialNumber[j++] = vpd[index++];
1890                                         if (j == 31)
1891                                                 break;
1892                                 }
1893                                 phba->SerialNumber[j] = 0;
1894                                 continue;
1895                         }
1896                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1897                                 phba->vpd_flag |= VPD_MODEL_DESC;
1898                                 index += 2;
1899                                 i = vpd[index];
1900                                 index += 1;
1901                                 j = 0;
1902                                 Length -= (3+i);
1903                                 while(i--) {
1904                                         phba->ModelDesc[j++] = vpd[index++];
1905                                         if (j == 255)
1906                                                 break;
1907                                 }
1908                                 phba->ModelDesc[j] = 0;
1909                                 continue;
1910                         }
1911                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1912                                 phba->vpd_flag |= VPD_MODEL_NAME;
1913                                 index += 2;
1914                                 i = vpd[index];
1915                                 index += 1;
1916                                 j = 0;
1917                                 Length -= (3+i);
1918                                 while(i--) {
1919                                         phba->ModelName[j++] = vpd[index++];
1920                                         if (j == 79)
1921                                                 break;
1922                                 }
1923                                 phba->ModelName[j] = 0;
1924                                 continue;
1925                         }
1926                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1927                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1928                                 index += 2;
1929                                 i = vpd[index];
1930                                 index += 1;
1931                                 j = 0;
1932                                 Length -= (3+i);
1933                                 while(i--) {
1934                                         phba->ProgramType[j++] = vpd[index++];
1935                                         if (j == 255)
1936                                                 break;
1937                                 }
1938                                 phba->ProgramType[j] = 0;
1939                                 continue;
1940                         }
1941                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1942                                 phba->vpd_flag |= VPD_PORT;
1943                                 index += 2;
1944                                 i = vpd[index];
1945                                 index += 1;
1946                                 j = 0;
1947                                 Length -= (3+i);
1948                                 while(i--) {
1949                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
1950                                             (phba->sli4_hba.pport_name_sta ==
1951                                              LPFC_SLI4_PPNAME_GET)) {
1952                                                 j++;
1953                                                 index++;
1954                                         } else
1955                                                 phba->Port[j++] = vpd[index++];
1956                                         if (j == 19)
1957                                                 break;
1958                                 }
1959                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1960                                     (phba->sli4_hba.pport_name_sta ==
1961                                      LPFC_SLI4_PPNAME_NON))
1962                                         phba->Port[j] = 0;
1963                                 continue;
1964                         }
1965                         else {
1966                                 index += 2;
1967                                 i = vpd[index];
1968                                 index += 1;
1969                                 index += i;
1970                                 Length -= (3 + i);
1971                         }
1972                 }
1973                 finished = 0;
1974                 break;
1975                 case 0x78:
1976                         finished = 1;
1977                         break;
1978                 default:
1979                         index ++;
1980                         break;
1981                 }
1982         }
1983
1984         return(1);
1985 }
1986
1987 /**
1988  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1989  * @phba: pointer to lpfc hba data structure.
1990  * @mdp: pointer to the data structure to hold the derived model name.
1991  * @descp: pointer to the data structure to hold the derived description.
1992  *
1993  * This routine retrieves HBA's description based on its registered PCI device
1994  * ID. The @descp passed into this function points to an array of 256 chars. It
1995  * shall be returned with the model name, maximum speed, and the host bus type.
1996  * The @mdp passed into this function points to an array of 80 chars. When the
1997  * function returns, the @mdp will be filled with the model name.
1998  **/
1999 static void
2000 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2001 {
2002         lpfc_vpd_t *vp;
2003         uint16_t dev_id = phba->pcidev->device;
2004         int max_speed;
2005         int GE = 0;
2006         int oneConnect = 0; /* default is not a oneConnect */
2007         struct {
2008                 char *name;
2009                 char *bus;
2010                 char *function;
2011         } m = {"<Unknown>", "", ""};
2012
2013         if (mdp && mdp[0] != '\0'
2014                 && descp && descp[0] != '\0')
2015                 return;
2016
2017         if (phba->lmt & LMT_16Gb)
2018                 max_speed = 16;
2019         else if (phba->lmt & LMT_10Gb)
2020                 max_speed = 10;
2021         else if (phba->lmt & LMT_8Gb)
2022                 max_speed = 8;
2023         else if (phba->lmt & LMT_4Gb)
2024                 max_speed = 4;
2025         else if (phba->lmt & LMT_2Gb)
2026                 max_speed = 2;
2027         else if (phba->lmt & LMT_1Gb)
2028                 max_speed = 1;
2029         else
2030                 max_speed = 0;
2031
2032         vp = &phba->vpd;
2033
2034         switch (dev_id) {
2035         case PCI_DEVICE_ID_FIREFLY:
2036                 m = (typeof(m)){"LP6000", "PCI",
2037                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2038                 break;
2039         case PCI_DEVICE_ID_SUPERFLY:
2040                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2041                         m = (typeof(m)){"LP7000", "PCI", ""};
2042                 else
2043                         m = (typeof(m)){"LP7000E", "PCI", ""};
2044                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2045                 break;
2046         case PCI_DEVICE_ID_DRAGONFLY:
2047                 m = (typeof(m)){"LP8000", "PCI",
2048                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2049                 break;
2050         case PCI_DEVICE_ID_CENTAUR:
2051                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2052                         m = (typeof(m)){"LP9002", "PCI", ""};
2053                 else
2054                         m = (typeof(m)){"LP9000", "PCI", ""};
2055                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2056                 break;
2057         case PCI_DEVICE_ID_RFLY:
2058                 m = (typeof(m)){"LP952", "PCI",
2059                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2060                 break;
2061         case PCI_DEVICE_ID_PEGASUS:
2062                 m = (typeof(m)){"LP9802", "PCI-X",
2063                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2064                 break;
2065         case PCI_DEVICE_ID_THOR:
2066                 m = (typeof(m)){"LP10000", "PCI-X",
2067                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2068                 break;
2069         case PCI_DEVICE_ID_VIPER:
2070                 m = (typeof(m)){"LPX1000",  "PCI-X",
2071                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2072                 break;
2073         case PCI_DEVICE_ID_PFLY:
2074                 m = (typeof(m)){"LP982", "PCI-X",
2075                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2076                 break;
2077         case PCI_DEVICE_ID_TFLY:
2078                 m = (typeof(m)){"LP1050", "PCI-X",
2079                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2080                 break;
2081         case PCI_DEVICE_ID_HELIOS:
2082                 m = (typeof(m)){"LP11000", "PCI-X2",
2083                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2084                 break;
2085         case PCI_DEVICE_ID_HELIOS_SCSP:
2086                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2087                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2088                 break;
2089         case PCI_DEVICE_ID_HELIOS_DCSP:
2090                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2091                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2092                 break;
2093         case PCI_DEVICE_ID_NEPTUNE:
2094                 m = (typeof(m)){"LPe1000", "PCIe",
2095                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2096                 break;
2097         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2098                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2099                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2100                 break;
2101         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2102                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2103                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2104                 break;
2105         case PCI_DEVICE_ID_BMID:
2106                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2107                 break;
2108         case PCI_DEVICE_ID_BSMB:
2109                 m = (typeof(m)){"LP111", "PCI-X2",
2110                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2111                 break;
2112         case PCI_DEVICE_ID_ZEPHYR:
2113                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2114                 break;
2115         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2116                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2117                 break;
2118         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2119                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2120                 GE = 1;
2121                 break;
2122         case PCI_DEVICE_ID_ZMID:
2123                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2124                 break;
2125         case PCI_DEVICE_ID_ZSMB:
2126                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2127                 break;
2128         case PCI_DEVICE_ID_LP101:
2129                 m = (typeof(m)){"LP101", "PCI-X",
2130                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2131                 break;
2132         case PCI_DEVICE_ID_LP10000S:
2133                 m = (typeof(m)){"LP10000-S", "PCI",
2134                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2135                 break;
2136         case PCI_DEVICE_ID_LP11000S:
2137                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2138                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2139                 break;
2140         case PCI_DEVICE_ID_LPE11000S:
2141                 m = (typeof(m)){"LPe11000-S", "PCIe",
2142                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2143                 break;
2144         case PCI_DEVICE_ID_SAT:
2145                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2146                 break;
2147         case PCI_DEVICE_ID_SAT_MID:
2148                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2149                 break;
2150         case PCI_DEVICE_ID_SAT_SMB:
2151                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2152                 break;
2153         case PCI_DEVICE_ID_SAT_DCSP:
2154                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2155                 break;
2156         case PCI_DEVICE_ID_SAT_SCSP:
2157                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2158                 break;
2159         case PCI_DEVICE_ID_SAT_S:
2160                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2161                 break;
2162         case PCI_DEVICE_ID_HORNET:
2163                 m = (typeof(m)){"LP21000", "PCIe",
2164                                 "Obsolete, Unsupported FCoE Adapter"};
2165                 GE = 1;
2166                 break;
2167         case PCI_DEVICE_ID_PROTEUS_VF:
2168                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2169                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2170                 break;
2171         case PCI_DEVICE_ID_PROTEUS_PF:
2172                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2173                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2174                 break;
2175         case PCI_DEVICE_ID_PROTEUS_S:
2176                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2177                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2178                 break;
2179         case PCI_DEVICE_ID_TIGERSHARK:
2180                 oneConnect = 1;
2181                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2182                 break;
2183         case PCI_DEVICE_ID_TOMCAT:
2184                 oneConnect = 1;
2185                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2186                 break;
2187         case PCI_DEVICE_ID_FALCON:
2188                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2189                                 "EmulexSecure Fibre"};
2190                 break;
2191         case PCI_DEVICE_ID_BALIUS:
2192                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2193                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2194                 break;
2195         case PCI_DEVICE_ID_LANCER_FC:
2196                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2197                 break;
2198         case PCI_DEVICE_ID_LANCER_FC_VF:
2199                 m = (typeof(m)){"LPe16000", "PCIe",
2200                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2201                 break;
2202         case PCI_DEVICE_ID_LANCER_FCOE:
2203                 oneConnect = 1;
2204                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2205                 break;
2206         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2207                 oneConnect = 1;
2208                 m = (typeof(m)){"OCe15100", "PCIe",
2209                                 "Obsolete, Unsupported FCoE"};
2210                 break;
2211         case PCI_DEVICE_ID_SKYHAWK:
2212         case PCI_DEVICE_ID_SKYHAWK_VF:
2213                 oneConnect = 1;
2214                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2215                 break;
2216         default:
2217                 m = (typeof(m)){"Unknown", "", ""};
2218                 break;
2219         }
2220
2221         if (mdp && mdp[0] == '\0')
2222                 snprintf(mdp, 79,"%s", m.name);
2223         /*
2224          * oneConnect hba requires special processing, they are all initiators
2225          * and we put the port number on the end
2226          */
2227         if (descp && descp[0] == '\0') {
2228                 if (oneConnect)
2229                         snprintf(descp, 255,
2230                                 "Emulex OneConnect %s, %s Initiator %s",
2231                                 m.name, m.function,
2232                                 phba->Port);
2233                 else if (max_speed == 0)
2234                         snprintf(descp, 255,
2235                                 "Emulex %s %s %s ",
2236                                 m.name, m.bus, m.function);
2237                 else
2238                         snprintf(descp, 255,
2239                                 "Emulex %s %d%s %s %s",
2240                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2241                                 m.bus, m.function);
2242         }
2243 }
2244
2245 /**
2246  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2247  * @phba: pointer to lpfc hba data structure.
2248  * @pring: pointer to a IOCB ring.
2249  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2250  *
2251  * This routine posts a given number of IOCBs with the associated DMA buffer
2252  * descriptors specified by the cnt argument to the given IOCB ring.
2253  *
2254  * Return codes
2255  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2256  **/
2257 int
2258 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2259 {
2260         IOCB_t *icmd;
2261         struct lpfc_iocbq *iocb;
2262         struct lpfc_dmabuf *mp1, *mp2;
2263
2264         cnt += pring->missbufcnt;
2265
2266         /* While there are buffers to post */
2267         while (cnt > 0) {
2268                 /* Allocate buffer for  command iocb */
2269                 iocb = lpfc_sli_get_iocbq(phba);
2270                 if (iocb == NULL) {
2271                         pring->missbufcnt = cnt;
2272                         return cnt;
2273                 }
2274                 icmd = &iocb->iocb;
2275
2276                 /* 2 buffers can be posted per command */
2277                 /* Allocate buffer to post */
2278                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2279                 if (mp1)
2280                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2281                 if (!mp1 || !mp1->virt) {
2282                         kfree(mp1);
2283                         lpfc_sli_release_iocbq(phba, iocb);
2284                         pring->missbufcnt = cnt;
2285                         return cnt;
2286                 }
2287
2288                 INIT_LIST_HEAD(&mp1->list);
2289                 /* Allocate buffer to post */
2290                 if (cnt > 1) {
2291                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2292                         if (mp2)
2293                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2294                                                             &mp2->phys);
2295                         if (!mp2 || !mp2->virt) {
2296                                 kfree(mp2);
2297                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2298                                 kfree(mp1);
2299                                 lpfc_sli_release_iocbq(phba, iocb);
2300                                 pring->missbufcnt = cnt;
2301                                 return cnt;
2302                         }
2303
2304                         INIT_LIST_HEAD(&mp2->list);
2305                 } else {
2306                         mp2 = NULL;
2307                 }
2308
2309                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2310                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2311                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2312                 icmd->ulpBdeCount = 1;
2313                 cnt--;
2314                 if (mp2) {
2315                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2316                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2317                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2318                         cnt--;
2319                         icmd->ulpBdeCount = 2;
2320                 }
2321
2322                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2323                 icmd->ulpLe = 1;
2324
2325                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2326                     IOCB_ERROR) {
2327                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2328                         kfree(mp1);
2329                         cnt++;
2330                         if (mp2) {
2331                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2332                                 kfree(mp2);
2333                                 cnt++;
2334                         }
2335                         lpfc_sli_release_iocbq(phba, iocb);
2336                         pring->missbufcnt = cnt;
2337                         return cnt;
2338                 }
2339                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2340                 if (mp2)
2341                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2342         }
2343         pring->missbufcnt = 0;
2344         return 0;
2345 }
2346
2347 /**
2348  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2349  * @phba: pointer to lpfc hba data structure.
2350  *
2351  * This routine posts initial receive IOCB buffers to the ELS ring. The
2352  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2353  * set to 64 IOCBs.
2354  *
2355  * Return codes
2356  *   0 - success (currently always success)
2357  **/
2358 static int
2359 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2360 {
2361         struct lpfc_sli *psli = &phba->sli;
2362
2363         /* Ring 0, ELS / CT buffers */
2364         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2365         /* Ring 2 - FCP no buffers needed */
2366
2367         return 0;
2368 }
2369
2370 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2371
2372 /**
2373  * lpfc_sha_init - Set up initial array of hash table entries
2374  * @HashResultPointer: pointer to an array as hash table.
2375  *
2376  * This routine sets up the initial values to the array of hash table entries
2377  * for the LC HBAs.
2378  **/
2379 static void
2380 lpfc_sha_init(uint32_t * HashResultPointer)
2381 {
2382         HashResultPointer[0] = 0x67452301;
2383         HashResultPointer[1] = 0xEFCDAB89;
2384         HashResultPointer[2] = 0x98BADCFE;
2385         HashResultPointer[3] = 0x10325476;
2386         HashResultPointer[4] = 0xC3D2E1F0;
2387 }
2388
2389 /**
2390  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2391  * @HashResultPointer: pointer to an initial/result hash table.
2392  * @HashWorkingPointer: pointer to an working hash table.
2393  *
2394  * This routine iterates an initial hash table pointed by @HashResultPointer
2395  * with the values from the working hash table pointeed by @HashWorkingPointer.
2396  * The results are putting back to the initial hash table, returned through
2397  * the @HashResultPointer as the result hash table.
2398  **/
2399 static void
2400 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2401 {
2402         int t;
2403         uint32_t TEMP;
2404         uint32_t A, B, C, D, E;
2405         t = 16;
2406         do {
2407                 HashWorkingPointer[t] =
2408                     S(1,
2409                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2410                                                                      8] ^
2411                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2412         } while (++t <= 79);
2413         t = 0;
2414         A = HashResultPointer[0];
2415         B = HashResultPointer[1];
2416         C = HashResultPointer[2];
2417         D = HashResultPointer[3];
2418         E = HashResultPointer[4];
2419
2420         do {
2421                 if (t < 20) {
2422                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2423                 } else if (t < 40) {
2424                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2425                 } else if (t < 60) {
2426                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2427                 } else {
2428                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2429                 }
2430                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2431                 E = D;
2432                 D = C;
2433                 C = S(30, B);
2434                 B = A;
2435                 A = TEMP;
2436         } while (++t <= 79);
2437
2438         HashResultPointer[0] += A;
2439         HashResultPointer[1] += B;
2440         HashResultPointer[2] += C;
2441         HashResultPointer[3] += D;
2442         HashResultPointer[4] += E;
2443
2444 }
2445
2446 /**
2447  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2448  * @RandomChallenge: pointer to the entry of host challenge random number array.
2449  * @HashWorking: pointer to the entry of the working hash array.
2450  *
2451  * This routine calculates the working hash array referred by @HashWorking
2452  * from the challenge random numbers associated with the host, referred by
2453  * @RandomChallenge. The result is put into the entry of the working hash
2454  * array and returned by reference through @HashWorking.
2455  **/
2456 static void
2457 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2458 {
2459         *HashWorking = (*RandomChallenge ^ *HashWorking);
2460 }
2461
2462 /**
2463  * lpfc_hba_init - Perform special handling for LC HBA initialization
2464  * @phba: pointer to lpfc hba data structure.
2465  * @hbainit: pointer to an array of unsigned 32-bit integers.
2466  *
2467  * This routine performs the special handling for LC HBA initialization.
2468  **/
2469 void
2470 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2471 {
2472         int t;
2473         uint32_t *HashWorking;
2474         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2475
2476         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2477         if (!HashWorking)
2478                 return;
2479
2480         HashWorking[0] = HashWorking[78] = *pwwnn++;
2481         HashWorking[1] = HashWorking[79] = *pwwnn;
2482
2483         for (t = 0; t < 7; t++)
2484                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2485
2486         lpfc_sha_init(hbainit);
2487         lpfc_sha_iterate(hbainit, HashWorking);
2488         kfree(HashWorking);
2489 }
2490
2491 /**
2492  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2493  * @vport: pointer to a virtual N_Port data structure.
2494  *
2495  * This routine performs the necessary cleanups before deleting the @vport.
2496  * It invokes the discovery state machine to perform necessary state
2497  * transitions and to release the ndlps associated with the @vport. Note,
2498  * the physical port is treated as @vport 0.
2499  **/
2500 void
2501 lpfc_cleanup(struct lpfc_vport *vport)
2502 {
2503         struct lpfc_hba   *phba = vport->phba;
2504         struct lpfc_nodelist *ndlp, *next_ndlp;
2505         int i = 0;
2506
2507         if (phba->link_state > LPFC_LINK_DOWN)
2508                 lpfc_port_link_failure(vport);
2509
2510         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2511                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2512                         ndlp = lpfc_enable_node(vport, ndlp,
2513                                                 NLP_STE_UNUSED_NODE);
2514                         if (!ndlp)
2515                                 continue;
2516                         spin_lock_irq(&phba->ndlp_lock);
2517                         NLP_SET_FREE_REQ(ndlp);
2518                         spin_unlock_irq(&phba->ndlp_lock);
2519                         /* Trigger the release of the ndlp memory */
2520                         lpfc_nlp_put(ndlp);
2521                         continue;
2522                 }
2523                 spin_lock_irq(&phba->ndlp_lock);
2524                 if (NLP_CHK_FREE_REQ(ndlp)) {
2525                         /* The ndlp should not be in memory free mode already */
2526                         spin_unlock_irq(&phba->ndlp_lock);
2527                         continue;
2528                 } else
2529                         /* Indicate request for freeing ndlp memory */
2530                         NLP_SET_FREE_REQ(ndlp);
2531                 spin_unlock_irq(&phba->ndlp_lock);
2532
2533                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2534                     ndlp->nlp_DID == Fabric_DID) {
2535                         /* Just free up ndlp with Fabric_DID for vports */
2536                         lpfc_nlp_put(ndlp);
2537                         continue;
2538                 }
2539
2540                 /* take care of nodes in unused state before the state
2541                  * machine taking action.
2542                  */
2543                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2544                         lpfc_nlp_put(ndlp);
2545                         continue;
2546                 }
2547
2548                 if (ndlp->nlp_type & NLP_FABRIC)
2549                         lpfc_disc_state_machine(vport, ndlp, NULL,
2550                                         NLP_EVT_DEVICE_RECOVERY);
2551
2552                 lpfc_disc_state_machine(vport, ndlp, NULL,
2553                                              NLP_EVT_DEVICE_RM);
2554         }
2555
2556         /* At this point, ALL ndlp's should be gone
2557          * because of the previous NLP_EVT_DEVICE_RM.
2558          * Lets wait for this to happen, if needed.
2559          */
2560         while (!list_empty(&vport->fc_nodes)) {
2561                 if (i++ > 3000) {
2562                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2563                                 "0233 Nodelist not empty\n");
2564                         list_for_each_entry_safe(ndlp, next_ndlp,
2565                                                 &vport->fc_nodes, nlp_listp) {
2566                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2567                                                 LOG_NODE,
2568                                                 "0282 did:x%x ndlp:x%p "
2569                                                 "usgmap:x%x refcnt:%d\n",
2570                                                 ndlp->nlp_DID, (void *)ndlp,
2571                                                 ndlp->nlp_usg_map,
2572                                                 atomic_read(
2573                                                         &ndlp->kref.refcount));
2574                         }
2575                         break;
2576                 }
2577
2578                 /* Wait for any activity on ndlps to settle */
2579                 msleep(10);
2580         }
2581         lpfc_cleanup_vports_rrqs(vport, NULL);
2582 }
2583
2584 /**
2585  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2586  * @vport: pointer to a virtual N_Port data structure.
2587  *
2588  * This routine stops all the timers associated with a @vport. This function
2589  * is invoked before disabling or deleting a @vport. Note that the physical
2590  * port is treated as @vport 0.
2591  **/
2592 void
2593 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2594 {
2595         del_timer_sync(&vport->els_tmofunc);
2596         del_timer_sync(&vport->fc_fdmitmo);
2597         del_timer_sync(&vport->delayed_disc_tmo);
2598         lpfc_can_disctmo(vport);
2599         return;
2600 }
2601
2602 /**
2603  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2604  * @phba: pointer to lpfc hba data structure.
2605  *
2606  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2607  * caller of this routine should already hold the host lock.
2608  **/
2609 void
2610 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2611 {
2612         /* Clear pending FCF rediscovery wait flag */
2613         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2614
2615         /* Now, try to stop the timer */
2616         del_timer(&phba->fcf.redisc_wait);
2617 }
2618
2619 /**
2620  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2621  * @phba: pointer to lpfc hba data structure.
2622  *
2623  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2624  * checks whether the FCF rediscovery wait timer is pending with the host
2625  * lock held before proceeding with disabling the timer and clearing the
2626  * wait timer pendig flag.
2627  **/
2628 void
2629 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2630 {
2631         spin_lock_irq(&phba->hbalock);
2632         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2633                 /* FCF rediscovery timer already fired or stopped */
2634                 spin_unlock_irq(&phba->hbalock);
2635                 return;
2636         }
2637         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2638         /* Clear failover in progress flags */
2639         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2640         spin_unlock_irq(&phba->hbalock);
2641 }
2642
2643 /**
2644  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2645  * @phba: pointer to lpfc hba data structure.
2646  *
2647  * This routine stops all the timers associated with a HBA. This function is
2648  * invoked before either putting a HBA offline or unloading the driver.
2649  **/
2650 void
2651 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2652 {
2653         lpfc_stop_vport_timers(phba->pport);
2654         del_timer_sync(&phba->sli.mbox_tmo);
2655         del_timer_sync(&phba->fabric_block_timer);
2656         del_timer_sync(&phba->eratt_poll);
2657         del_timer_sync(&phba->hb_tmofunc);
2658         if (phba->sli_rev == LPFC_SLI_REV4) {
2659                 del_timer_sync(&phba->rrq_tmr);
2660                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2661         }
2662         phba->hb_outstanding = 0;
2663
2664         switch (phba->pci_dev_grp) {
2665         case LPFC_PCI_DEV_LP:
2666                 /* Stop any LightPulse device specific driver timers */
2667                 del_timer_sync(&phba->fcp_poll_timer);
2668                 break;
2669         case LPFC_PCI_DEV_OC:
2670                 /* Stop any OneConnect device sepcific driver timers */
2671                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2672                 break;
2673         default:
2674                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2675                                 "0297 Invalid device group (x%x)\n",
2676                                 phba->pci_dev_grp);
2677                 break;
2678         }
2679         return;
2680 }
2681
2682 /**
2683  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2684  * @phba: pointer to lpfc hba data structure.
2685  *
2686  * This routine marks a HBA's management interface as blocked. Once the HBA's
2687  * management interface is marked as blocked, all the user space access to
2688  * the HBA, whether they are from sysfs interface or libdfc interface will
2689  * all be blocked. The HBA is set to block the management interface when the
2690  * driver prepares the HBA interface for online or offline.
2691  **/
2692 static void
2693 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2694 {
2695         unsigned long iflag;
2696         uint8_t actcmd = MBX_HEARTBEAT;
2697         unsigned long timeout;
2698
2699         spin_lock_irqsave(&phba->hbalock, iflag);
2700         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2701         spin_unlock_irqrestore(&phba->hbalock, iflag);
2702         if (mbx_action == LPFC_MBX_NO_WAIT)
2703                 return;
2704         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2705         spin_lock_irqsave(&phba->hbalock, iflag);
2706         if (phba->sli.mbox_active) {
2707                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2708                 /* Determine how long we might wait for the active mailbox
2709                  * command to be gracefully completed by firmware.
2710                  */
2711                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2712                                 phba->sli.mbox_active) * 1000) + jiffies;
2713         }
2714         spin_unlock_irqrestore(&phba->hbalock, iflag);
2715
2716         /* Wait for the outstnading mailbox command to complete */
2717         while (phba->sli.mbox_active) {
2718                 /* Check active mailbox complete status every 2ms */
2719                 msleep(2);
2720                 if (time_after(jiffies, timeout)) {
2721                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2722                                 "2813 Mgmt IO is Blocked %x "
2723                                 "- mbox cmd %x still active\n",
2724                                 phba->sli.sli_flag, actcmd);
2725                         break;
2726                 }
2727         }
2728 }
2729
2730 /**
2731  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2732  * @phba: pointer to lpfc hba data structure.
2733  *
2734  * Allocate RPIs for all active remote nodes. This is needed whenever
2735  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2736  * is to fixup the temporary rpi assignments.
2737  **/
2738 void
2739 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2740 {
2741         struct lpfc_nodelist  *ndlp, *next_ndlp;
2742         struct lpfc_vport **vports;
2743         int i;
2744
2745         if (phba->sli_rev != LPFC_SLI_REV4)
2746                 return;
2747
2748         vports = lpfc_create_vport_work_array(phba);
2749         if (vports != NULL) {
2750                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2751                         if (vports[i]->load_flag & FC_UNLOADING)
2752                                 continue;
2753
2754                         list_for_each_entry_safe(ndlp, next_ndlp,
2755                                                  &vports[i]->fc_nodes,
2756                                                  nlp_listp) {
2757                                 if (NLP_CHK_NODE_ACT(ndlp))
2758                                         ndlp->nlp_rpi =
2759                                                 lpfc_sli4_alloc_rpi(phba);
2760                         }
2761                 }
2762         }
2763         lpfc_destroy_vport_work_array(phba, vports);
2764 }
2765
2766 /**
2767  * lpfc_online - Initialize and bring a HBA online
2768  * @phba: pointer to lpfc hba data structure.
2769  *
2770  * This routine initializes the HBA and brings a HBA online. During this
2771  * process, the management interface is blocked to prevent user space access
2772  * to the HBA interfering with the driver initialization.
2773  *
2774  * Return codes
2775  *   0 - successful
2776  *   1 - failed
2777  **/
2778 int
2779 lpfc_online(struct lpfc_hba *phba)
2780 {
2781         struct lpfc_vport *vport;
2782         struct lpfc_vport **vports;
2783         int i;
2784         bool vpis_cleared = false;
2785
2786         if (!phba)
2787                 return 0;
2788         vport = phba->pport;
2789
2790         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2791                 return 0;
2792
2793         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2794                         "0458 Bring Adapter online\n");
2795
2796         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2797
2798         if (!lpfc_sli_queue_setup(phba)) {
2799                 lpfc_unblock_mgmt_io(phba);
2800                 return 1;
2801         }
2802
2803         if (phba->sli_rev == LPFC_SLI_REV4) {
2804                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2805                         lpfc_unblock_mgmt_io(phba);
2806                         return 1;
2807                 }
2808                 spin_lock_irq(&phba->hbalock);
2809                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2810                         vpis_cleared = true;
2811                 spin_unlock_irq(&phba->hbalock);
2812         } else {
2813                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2814                         lpfc_unblock_mgmt_io(phba);
2815                         return 1;
2816                 }
2817         }
2818
2819         vports = lpfc_create_vport_work_array(phba);
2820         if (vports != NULL)
2821                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2822                         struct Scsi_Host *shost;
2823                         shost = lpfc_shost_from_vport(vports[i]);
2824                         spin_lock_irq(shost->host_lock);
2825                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2826                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2827                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2828                         if (phba->sli_rev == LPFC_SLI_REV4) {
2829                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2830                                 if ((vpis_cleared) &&
2831                                     (vports[i]->port_type !=
2832                                         LPFC_PHYSICAL_PORT))
2833                                         vports[i]->vpi = 0;
2834                         }
2835                         spin_unlock_irq(shost->host_lock);
2836                 }
2837                 lpfc_destroy_vport_work_array(phba, vports);
2838
2839         lpfc_unblock_mgmt_io(phba);
2840         return 0;
2841 }
2842
2843 /**
2844  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2845  * @phba: pointer to lpfc hba data structure.
2846  *
2847  * This routine marks a HBA's management interface as not blocked. Once the
2848  * HBA's management interface is marked as not blocked, all the user space
2849  * access to the HBA, whether they are from sysfs interface or libdfc
2850  * interface will be allowed. The HBA is set to block the management interface
2851  * when the driver prepares the HBA interface for online or offline and then
2852  * set to unblock the management interface afterwards.
2853  **/
2854 void
2855 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2856 {
2857         unsigned long iflag;
2858
2859         spin_lock_irqsave(&phba->hbalock, iflag);
2860         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2861         spin_unlock_irqrestore(&phba->hbalock, iflag);
2862 }
2863
2864 /**
2865  * lpfc_offline_prep - Prepare a HBA to be brought offline
2866  * @phba: pointer to lpfc hba data structure.
2867  *
2868  * This routine is invoked to prepare a HBA to be brought offline. It performs
2869  * unregistration login to all the nodes on all vports and flushes the mailbox
2870  * queue to make it ready to be brought offline.
2871  **/
2872 void
2873 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2874 {
2875         struct lpfc_vport *vport = phba->pport;
2876         struct lpfc_nodelist  *ndlp, *next_ndlp;
2877         struct lpfc_vport **vports;
2878         struct Scsi_Host *shost;
2879         int i;
2880
2881         if (vport->fc_flag & FC_OFFLINE_MODE)
2882                 return;
2883
2884         lpfc_block_mgmt_io(phba, mbx_action);
2885
2886         lpfc_linkdown(phba);
2887
2888         /* Issue an unreg_login to all nodes on all vports */
2889         vports = lpfc_create_vport_work_array(phba);
2890         if (vports != NULL) {
2891                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2892                         if (vports[i]->load_flag & FC_UNLOADING)
2893                                 continue;
2894                         shost = lpfc_shost_from_vport(vports[i]);
2895                         spin_lock_irq(shost->host_lock);
2896                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2897                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2898                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2899                         spin_unlock_irq(shost->host_lock);
2900
2901                         shost = lpfc_shost_from_vport(vports[i]);
2902                         list_for_each_entry_safe(ndlp, next_ndlp,
2903                                                  &vports[i]->fc_nodes,
2904                                                  nlp_listp) {
2905                                 if (!NLP_CHK_NODE_ACT(ndlp))
2906                                         continue;
2907                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2908                                         continue;
2909                                 if (ndlp->nlp_type & NLP_FABRIC) {
2910                                         lpfc_disc_state_machine(vports[i], ndlp,
2911                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2912                                         lpfc_disc_state_machine(vports[i], ndlp,
2913                                                 NULL, NLP_EVT_DEVICE_RM);
2914                                 }
2915                                 spin_lock_irq(shost->host_lock);
2916                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2917                                 spin_unlock_irq(shost->host_lock);
2918                                 /*
2919                                  * Whenever an SLI4 port goes offline, free the
2920                                  * RPI. Get a new RPI when the adapter port
2921                                  * comes back online.
2922                                  */
2923                                 if (phba->sli_rev == LPFC_SLI_REV4)
2924                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2925                                 lpfc_unreg_rpi(vports[i], ndlp);
2926                         }
2927                 }
2928         }
2929         lpfc_destroy_vport_work_array(phba, vports);
2930
2931         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2932 }
2933
2934 /**
2935  * lpfc_offline - Bring a HBA offline
2936  * @phba: pointer to lpfc hba data structure.
2937  *
2938  * This routine actually brings a HBA offline. It stops all the timers
2939  * associated with the HBA, brings down the SLI layer, and eventually
2940  * marks the HBA as in offline state for the upper layer protocol.
2941  **/
2942 void
2943 lpfc_offline(struct lpfc_hba *phba)
2944 {
2945         struct Scsi_Host  *shost;
2946         struct lpfc_vport **vports;
2947         int i;
2948
2949         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2950                 return;
2951
2952         /* stop port and all timers associated with this hba */
2953         lpfc_stop_port(phba);
2954         vports = lpfc_create_vport_work_array(phba);
2955         if (vports != NULL)
2956                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2957                         lpfc_stop_vport_timers(vports[i]);
2958         lpfc_destroy_vport_work_array(phba, vports);
2959         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2960                         "0460 Bring Adapter offline\n");
2961         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2962            now.  */
2963         lpfc_sli_hba_down(phba);
2964         spin_lock_irq(&phba->hbalock);
2965         phba->work_ha = 0;
2966         spin_unlock_irq(&phba->hbalock);
2967         vports = lpfc_create_vport_work_array(phba);
2968         if (vports != NULL)
2969                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2970                         shost = lpfc_shost_from_vport(vports[i]);
2971                         spin_lock_irq(shost->host_lock);
2972                         vports[i]->work_port_events = 0;
2973                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2974                         spin_unlock_irq(shost->host_lock);
2975                 }
2976         lpfc_destroy_vport_work_array(phba, vports);
2977 }
2978
2979 /**
2980  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2981  * @phba: pointer to lpfc hba data structure.
2982  *
2983  * This routine is to free all the SCSI buffers and IOCBs from the driver
2984  * list back to kernel. It is called from lpfc_pci_remove_one to free
2985  * the internal resources before the device is removed from the system.
2986  **/
2987 static void
2988 lpfc_scsi_free(struct lpfc_hba *phba)
2989 {
2990         struct lpfc_scsi_buf *sb, *sb_next;
2991         struct lpfc_iocbq *io, *io_next;
2992
2993         spin_lock_irq(&phba->hbalock);
2994
2995         /* Release all the lpfc_scsi_bufs maintained by this host. */
2996
2997         spin_lock(&phba->scsi_buf_list_put_lock);
2998         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
2999                                  list) {
3000                 list_del(&sb->list);
3001                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3002                               sb->dma_handle);
3003                 kfree(sb);
3004                 phba->total_scsi_bufs--;
3005         }
3006         spin_unlock(&phba->scsi_buf_list_put_lock);
3007
3008         spin_lock(&phba->scsi_buf_list_get_lock);
3009         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3010                                  list) {
3011                 list_del(&sb->list);
3012                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3013                               sb->dma_handle);
3014                 kfree(sb);
3015                 phba->total_scsi_bufs--;
3016         }
3017         spin_unlock(&phba->scsi_buf_list_get_lock);
3018
3019         /* Release all the lpfc_iocbq entries maintained by this host. */
3020         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
3021                 list_del(&io->list);
3022                 kfree(io);
3023                 phba->total_iocbq_bufs--;
3024         }
3025
3026         spin_unlock_irq(&phba->hbalock);
3027 }
3028
3029 /**
3030  * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
3031  * @phba: pointer to lpfc hba data structure.
3032  *
3033  * This routine first calculates the sizes of the current els and allocated
3034  * scsi sgl lists, and then goes through all sgls to updates the physical
3035  * XRIs assigned due to port function reset. During port initialization, the
3036  * current els and allocated scsi sgl lists are 0s.
3037  *
3038  * Return codes
3039  *   0 - successful (for now, it always returns 0)
3040  **/
3041 int
3042 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
3043 {
3044         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3045         struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
3046         uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
3047         LIST_HEAD(els_sgl_list);
3048         LIST_HEAD(scsi_sgl_list);
3049         int rc;
3050
3051         /*
3052          * update on pci function's els xri-sgl list
3053          */
3054         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3055         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3056                 /* els xri-sgl expanded */
3057                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3058                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3059                                 "3157 ELS xri-sgl count increased from "
3060                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3061                                 els_xri_cnt);
3062                 /* allocate the additional els sgls */
3063                 for (i = 0; i < xri_cnt; i++) {
3064                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3065                                              GFP_KERNEL);
3066                         if (sglq_entry == NULL) {
3067                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3068                                                 "2562 Failure to allocate an "
3069                                                 "ELS sgl entry:%d\n", i);
3070                                 rc = -ENOMEM;
3071                                 goto out_free_mem;
3072                         }
3073                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3074                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3075                                                            &sglq_entry->phys);
3076                         if (sglq_entry->virt == NULL) {
3077                                 kfree(sglq_entry);
3078                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3079                                                 "2563 Failure to allocate an "
3080                                                 "ELS mbuf:%d\n", i);
3081                                 rc = -ENOMEM;
3082                                 goto out_free_mem;
3083                         }
3084                         sglq_entry->sgl = sglq_entry->virt;
3085                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3086                         sglq_entry->state = SGL_FREED;
3087                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3088                 }
3089                 spin_lock_irq(&phba->hbalock);
3090                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3091                 spin_unlock_irq(&phba->hbalock);
3092         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3093                 /* els xri-sgl shrinked */
3094                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3095                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3096                                 "3158 ELS xri-sgl count decreased from "
3097                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3098                                 els_xri_cnt);
3099                 spin_lock_irq(&phba->hbalock);
3100                 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
3101                 spin_unlock_irq(&phba->hbalock);
3102                 /* release extra els sgls from list */
3103                 for (i = 0; i < xri_cnt; i++) {
3104                         list_remove_head(&els_sgl_list,
3105                                          sglq_entry, struct lpfc_sglq, list);
3106                         if (sglq_entry) {
3107                                 lpfc_mbuf_free(phba, sglq_entry->virt,
3108                                                sglq_entry->phys);
3109                                 kfree(sglq_entry);
3110                         }
3111                 }
3112                 spin_lock_irq(&phba->hbalock);
3113                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3114                 spin_unlock_irq(&phba->hbalock);
3115         } else
3116                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3117                                 "3163 ELS xri-sgl count unchanged: %d\n",
3118                                 els_xri_cnt);
3119         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3120
3121         /* update xris to els sgls on the list */
3122         sglq_entry = NULL;
3123         sglq_entry_next = NULL;
3124         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3125                                  &phba->sli4_hba.lpfc_sgl_list, list) {
3126                 lxri = lpfc_sli4_next_xritag(phba);
3127                 if (lxri == NO_XRI) {
3128                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3129                                         "2400 Failed to allocate xri for "
3130                                         "ELS sgl\n");
3131                         rc = -ENOMEM;
3132                         goto out_free_mem;
3133                 }
3134                 sglq_entry->sli4_lxritag = lxri;
3135                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3136         }
3137
3138         /*
3139          * update on pci function's allocated scsi xri-sgl list
3140          */
3141         phba->total_scsi_bufs = 0;
3142
3143         /* maximum number of xris available for scsi buffers */
3144         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3145                                       els_xri_cnt;
3146
3147         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3148                         "2401 Current allocated SCSI xri-sgl count:%d, "
3149                         "maximum  SCSI xri count:%d\n",
3150                         phba->sli4_hba.scsi_xri_cnt,
3151                         phba->sli4_hba.scsi_xri_max);
3152
3153         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3154         spin_lock(&phba->scsi_buf_list_put_lock);
3155         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3156         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3157         spin_unlock(&phba->scsi_buf_list_put_lock);
3158         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3159
3160         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3161                 /* max scsi xri shrinked below the allocated scsi buffers */
3162                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3163                                         phba->sli4_hba.scsi_xri_max;
3164                 /* release the extra allocated scsi buffers */
3165                 for (i = 0; i < scsi_xri_cnt; i++) {
3166                         list_remove_head(&scsi_sgl_list, psb,
3167                                          struct lpfc_scsi_buf, list);
3168                         pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data,
3169                                       psb->dma_handle);
3170                         kfree(psb);
3171                 }
3172                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3173                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3174                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3175         }
3176
3177         /* update xris associated to remaining allocated scsi buffers */
3178         psb = NULL;
3179         psb_next = NULL;
3180         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3181                 lxri = lpfc_sli4_next_xritag(phba);
3182                 if (lxri == NO_XRI) {
3183                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3184                                         "2560 Failed to allocate xri for "
3185                                         "scsi buffer\n");
3186                         rc = -ENOMEM;
3187                         goto out_free_mem;
3188                 }
3189                 psb->cur_iocbq.sli4_lxritag = lxri;
3190                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3191         }
3192         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3193         spin_lock(&phba->scsi_buf_list_put_lock);
3194         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3195         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3196         spin_unlock(&phba->scsi_buf_list_put_lock);
3197         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3198
3199         return 0;
3200
3201 out_free_mem:
3202         lpfc_free_els_sgl_list(phba);
3203         lpfc_scsi_free(phba);
3204         return rc;
3205 }
3206
3207 /**
3208  * lpfc_create_port - Create an FC port
3209  * @phba: pointer to lpfc hba data structure.
3210  * @instance: a unique integer ID to this FC port.
3211  * @dev: pointer to the device data structure.
3212  *
3213  * This routine creates a FC port for the upper layer protocol. The FC port
3214  * can be created on top of either a physical port or a virtual port provided
3215  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3216  * and associates the FC port created before adding the shost into the SCSI
3217  * layer.
3218  *
3219  * Return codes
3220  *   @vport - pointer to the virtual N_Port data structure.
3221  *   NULL - port create failed.
3222  **/
3223 struct lpfc_vport *
3224 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3225 {
3226         struct lpfc_vport *vport;
3227         struct Scsi_Host  *shost;
3228         int error = 0;
3229
3230         if (dev != &phba->pcidev->dev)
3231                 shost = scsi_host_alloc(&lpfc_vport_template,
3232                                         sizeof(struct lpfc_vport));
3233         else
3234                 shost = scsi_host_alloc(&lpfc_template,
3235                                         sizeof(struct lpfc_vport));
3236         if (!shost)
3237                 goto out;
3238
3239         vport = (struct lpfc_vport *) shost->hostdata;
3240         vport->phba = phba;
3241         vport->load_flag |= FC_LOADING;
3242         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3243         vport->fc_rscn_flush = 0;
3244
3245         lpfc_get_vport_cfgparam(vport);
3246         shost->unique_id = instance;
3247         shost->max_id = LPFC_MAX_TARGET;
3248         shost->max_lun = vport->cfg_max_luns;
3249         shost->this_id = -1;
3250         shost->max_cmd_len = 16;
3251         if (phba->sli_rev == LPFC_SLI_REV4) {
3252                 shost->dma_boundary =
3253                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3254                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3255         }
3256
3257         /*
3258          * Set initial can_queue value since 0 is no longer supported and
3259          * scsi_add_host will fail. This will be adjusted later based on the
3260          * max xri value determined in hba setup.
3261          */
3262         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3263         if (dev != &phba->pcidev->dev) {
3264                 shost->transportt = lpfc_vport_transport_template;
3265                 vport->port_type = LPFC_NPIV_PORT;
3266         } else {
3267                 shost->transportt = lpfc_transport_template;
3268                 vport->port_type = LPFC_PHYSICAL_PORT;
3269         }
3270
3271         /* Initialize all internally managed lists. */
3272         INIT_LIST_HEAD(&vport->fc_nodes);
3273         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3274         spin_lock_init(&vport->work_port_lock);
3275
3276         init_timer(&vport->fc_disctmo);
3277         vport->fc_disctmo.function = lpfc_disc_timeout;
3278         vport->fc_disctmo.data = (unsigned long)vport;
3279
3280         init_timer(&vport->fc_fdmitmo);
3281         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3282         vport->fc_fdmitmo.data = (unsigned long)vport;
3283
3284         init_timer(&vport->els_tmofunc);
3285         vport->els_tmofunc.function = lpfc_els_timeout;
3286         vport->els_tmofunc.data = (unsigned long)vport;
3287
3288         init_timer(&vport->delayed_disc_tmo);
3289         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3290         vport->delayed_disc_tmo.data = (unsigned long)vport;
3291
3292         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3293         if (error)
3294                 goto out_put_shost;
3295
3296         spin_lock_irq(&phba->hbalock);
3297         list_add_tail(&vport->listentry, &phba->port_list);
3298         spin_unlock_irq(&phba->hbalock);
3299         return vport;
3300
3301 out_put_shost:
3302         scsi_host_put(shost);
3303 out:
3304         return NULL;
3305 }
3306
3307 /**
3308  * destroy_port -  destroy an FC port
3309  * @vport: pointer to an lpfc virtual N_Port data structure.
3310  *
3311  * This routine destroys a FC port from the upper layer protocol. All the
3312  * resources associated with the port are released.
3313  **/
3314 void
3315 destroy_port(struct lpfc_vport *vport)
3316 {
3317         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3318         struct lpfc_hba  *phba = vport->phba;
3319
3320         lpfc_debugfs_terminate(vport);
3321         fc_remove_host(shost);
3322         scsi_remove_host(shost);
3323
3324         spin_lock_irq(&phba->hbalock);
3325         list_del_init(&vport->listentry);
3326         spin_unlock_irq(&phba->hbalock);
3327
3328         lpfc_cleanup(vport);
3329         return;
3330 }
3331
3332 /**
3333  * lpfc_get_instance - Get a unique integer ID
3334  *
3335  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3336  * uses the kernel idr facility to perform the task.
3337  *
3338  * Return codes:
3339  *   instance - a unique integer ID allocated as the new instance.
3340  *   -1 - lpfc get instance failed.
3341  **/
3342 int
3343 lpfc_get_instance(void)
3344 {
3345         int ret;
3346
3347         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3348         return ret < 0 ? -1 : ret;
3349 }
3350
3351 /**
3352  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3353  * @shost: pointer to SCSI host data structure.
3354  * @time: elapsed time of the scan in jiffies.
3355  *
3356  * This routine is called by the SCSI layer with a SCSI host to determine
3357  * whether the scan host is finished.
3358  *
3359  * Note: there is no scan_start function as adapter initialization will have
3360  * asynchronously kicked off the link initialization.
3361  *
3362  * Return codes
3363  *   0 - SCSI host scan is not over yet.
3364  *   1 - SCSI host scan is over.
3365  **/
3366 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3367 {
3368         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3369         struct lpfc_hba   *phba = vport->phba;
3370         int stat = 0;
3371
3372         spin_lock_irq(shost->host_lock);
3373
3374         if (vport->load_flag & FC_UNLOADING) {
3375                 stat = 1;
3376                 goto finished;
3377         }
3378         if (time >= msecs_to_jiffies(30 * 1000)) {
3379                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3380                                 "0461 Scanning longer than 30 "
3381                                 "seconds.  Continuing initialization\n");
3382                 stat = 1;
3383                 goto finished;
3384         }
3385         if (time >= msecs_to_jiffies(15 * 1000) &&
3386             phba->link_state <= LPFC_LINK_DOWN) {
3387                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3388                                 "0465 Link down longer than 15 "
3389                                 "seconds.  Continuing initialization\n");
3390                 stat = 1;
3391                 goto finished;
3392         }
3393
3394         if (vport->port_state != LPFC_VPORT_READY)
3395                 goto finished;
3396         if (vport->num_disc_nodes || vport->fc_prli_sent)
3397                 goto finished;
3398         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3399                 goto finished;
3400         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3401                 goto finished;
3402
3403         stat = 1;
3404
3405 finished:
3406         spin_unlock_irq(shost->host_lock);
3407         return stat;
3408 }
3409
3410 /**
3411  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3412  * @shost: pointer to SCSI host data structure.
3413  *
3414  * This routine initializes a given SCSI host attributes on a FC port. The
3415  * SCSI host can be either on top of a physical port or a virtual port.
3416  **/
3417 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3418 {
3419         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3420         struct lpfc_hba   *phba = vport->phba;
3421         /*
3422          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3423          */
3424
3425         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3426         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3427         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3428
3429         memset(fc_host_supported_fc4s(shost), 0,
3430                sizeof(fc_host_supported_fc4s(shost)));
3431         fc_host_supported_fc4s(shost)[2] = 1;
3432         fc_host_supported_fc4s(shost)[7] = 1;
3433
3434         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3435                                  sizeof fc_host_symbolic_name(shost));
3436
3437         fc_host_supported_speeds(shost) = 0;
3438         if (phba->lmt & LMT_16Gb)
3439                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3440         if (phba->lmt & LMT_10Gb)
3441                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3442         if (phba->lmt & LMT_8Gb)
3443                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3444         if (phba->lmt & LMT_4Gb)
3445                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3446         if (phba->lmt & LMT_2Gb)
3447                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3448         if (phba->lmt & LMT_1Gb)
3449                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3450
3451         fc_host_maxframe_size(shost) =
3452                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3453                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3454
3455         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3456
3457         /* This value is also unchanging */
3458         memset(fc_host_active_fc4s(shost), 0,
3459                sizeof(fc_host_active_fc4s(shost)));
3460         fc_host_active_fc4s(shost)[2] = 1;
3461         fc_host_active_fc4s(shost)[7] = 1;
3462
3463         fc_host_max_npiv_vports(shost) = phba->max_vpi;
3464         spin_lock_irq(shost->host_lock);
3465         vport->load_flag &= ~FC_LOADING;
3466         spin_unlock_irq(shost->host_lock);
3467 }
3468
3469 /**
3470  * lpfc_stop_port_s3 - Stop SLI3 device port
3471  * @phba: pointer to lpfc hba data structure.
3472  *
3473  * This routine is invoked to stop an SLI3 device port, it stops the device
3474  * from generating interrupts and stops the device driver's timers for the
3475  * device.
3476  **/
3477 static void
3478 lpfc_stop_port_s3(struct lpfc_hba *phba)
3479 {
3480         /* Clear all interrupt enable conditions */
3481         writel(0, phba->HCregaddr);
3482         readl(phba->HCregaddr); /* flush */
3483         /* Clear all pending interrupts */
3484         writel(0xffffffff, phba->HAregaddr);
3485         readl(phba->HAregaddr); /* flush */
3486
3487         /* Reset some HBA SLI setup states */
3488         lpfc_stop_hba_timers(phba);
3489         phba->pport->work_port_events = 0;
3490 }
3491
3492 /**
3493  * lpfc_stop_port_s4 - Stop SLI4 device port
3494  * @phba: pointer to lpfc hba data structure.
3495  *
3496  * This routine is invoked to stop an SLI4 device port, it stops the device
3497  * from generating interrupts and stops the device driver's timers for the
3498  * device.
3499  **/
3500 static void
3501 lpfc_stop_port_s4(struct lpfc_hba *phba)
3502 {
3503         /* Reset some HBA SLI4 setup states */
3504         lpfc_stop_hba_timers(phba);
3505         phba->pport->work_port_events = 0;
3506         phba->sli4_hba.intr_enable = 0;
3507 }
3508
3509 /**
3510  * lpfc_stop_port - Wrapper function for stopping hba port
3511  * @phba: Pointer to HBA context object.
3512  *
3513  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3514  * the API jump table function pointer from the lpfc_hba struct.
3515  **/
3516 void
3517 lpfc_stop_port(struct lpfc_hba *phba)
3518 {
3519         phba->lpfc_stop_port(phba);
3520 }
3521
3522 /**
3523  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3524  * @phba: Pointer to hba for which this call is being executed.
3525  *
3526  * This routine starts the timer waiting for the FCF rediscovery to complete.
3527  **/
3528 void
3529 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3530 {
3531         unsigned long fcf_redisc_wait_tmo =
3532                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3533         /* Start fcf rediscovery wait period timer */
3534         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3535         spin_lock_irq(&phba->hbalock);
3536         /* Allow action to new fcf asynchronous event */
3537         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3538         /* Mark the FCF rediscovery pending state */
3539         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3540         spin_unlock_irq(&phba->hbalock);
3541 }
3542
3543 /**
3544  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3545  * @ptr: Map to lpfc_hba data structure pointer.
3546  *
3547  * This routine is invoked when waiting for FCF table rediscover has been
3548  * timed out. If new FCF record(s) has (have) been discovered during the
3549  * wait period, a new FCF event shall be added to the FCOE async event
3550  * list, and then worker thread shall be waked up for processing from the
3551  * worker thread context.
3552  **/
3553 void
3554 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3555 {
3556         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3557
3558         /* Don't send FCF rediscovery event if timer cancelled */
3559         spin_lock_irq(&phba->hbalock);
3560         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3561                 spin_unlock_irq(&phba->hbalock);
3562                 return;
3563         }
3564         /* Clear FCF rediscovery timer pending flag */
3565         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3566         /* FCF rediscovery event to worker thread */
3567         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3568         spin_unlock_irq(&phba->hbalock);
3569         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3570                         "2776 FCF rediscover quiescent timer expired\n");
3571         /* wake up worker thread */
3572         lpfc_worker_wake_up(phba);
3573 }
3574
3575 /**
3576  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3577  * @phba: pointer to lpfc hba data structure.
3578  * @acqe_link: pointer to the async link completion queue entry.
3579  *
3580  * This routine is to parse the SLI4 link-attention link fault code and
3581  * translate it into the base driver's read link attention mailbox command
3582  * status.
3583  *
3584  * Return: Link-attention status in terms of base driver's coding.
3585  **/
3586 static uint16_t
3587 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3588                            struct lpfc_acqe_link *acqe_link)
3589 {
3590         uint16_t latt_fault;
3591
3592         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3593         case LPFC_ASYNC_LINK_FAULT_NONE:
3594         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3595         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3596                 latt_fault = 0;
3597                 break;
3598         default:
3599                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3600                                 "0398 Invalid link fault code: x%x\n",
3601                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3602                 latt_fault = MBXERR_ERROR;
3603                 break;
3604         }
3605         return latt_fault;
3606 }
3607
3608 /**
3609  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3610  * @phba: pointer to lpfc hba data structure.
3611  * @acqe_link: pointer to the async link completion queue entry.
3612  *
3613  * This routine is to parse the SLI4 link attention type and translate it
3614  * into the base driver's link attention type coding.
3615  *
3616  * Return: Link attention type in terms of base driver's coding.
3617  **/
3618 static uint8_t
3619 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3620                           struct lpfc_acqe_link *acqe_link)
3621 {
3622         uint8_t att_type;
3623
3624         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3625         case LPFC_ASYNC_LINK_STATUS_DOWN:
3626         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3627                 att_type = LPFC_ATT_LINK_DOWN;
3628                 break;
3629         case LPFC_ASYNC_LINK_STATUS_UP:
3630                 /* Ignore physical link up events - wait for logical link up */
3631                 att_type = LPFC_ATT_RESERVED;
3632                 break;
3633         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3634                 att_type = LPFC_ATT_LINK_UP;
3635                 break;
3636         default:
3637                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3638                                 "0399 Invalid link attention type: x%x\n",
3639                                 bf_get(lpfc_acqe_link_status, acqe_link));
3640                 att_type = LPFC_ATT_RESERVED;
3641                 break;
3642         }
3643         return att_type;
3644 }
3645
3646 /**
3647  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3648  * @phba: pointer to lpfc hba data structure.
3649  * @acqe_link: pointer to the async link completion queue entry.
3650  *
3651  * This routine is to parse the SLI4 link-attention link speed and translate
3652  * it into the base driver's link-attention link speed coding.
3653  *
3654  * Return: Link-attention link speed in terms of base driver's coding.
3655  **/
3656 static uint8_t
3657 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3658                                 struct lpfc_acqe_link *acqe_link)
3659 {
3660         uint8_t link_speed;
3661
3662         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3663         case LPFC_ASYNC_LINK_SPEED_ZERO:
3664         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3665         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3666                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3667                 break;
3668         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3669                 link_speed = LPFC_LINK_SPEED_1GHZ;
3670                 break;
3671         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3672                 link_speed = LPFC_LINK_SPEED_10GHZ;
3673                 break;
3674         default:
3675                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3676                                 "0483 Invalid link-attention link speed: x%x\n",
3677                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3678                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3679                 break;
3680         }
3681         return link_speed;
3682 }
3683
3684 /**
3685  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3686  * @phba: pointer to lpfc hba data structure.
3687  *
3688  * This routine is to get an SLI3 FC port's link speed in Mbps.
3689  *
3690  * Return: link speed in terms of Mbps.
3691  **/
3692 uint32_t
3693 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3694 {
3695         uint32_t link_speed;
3696
3697         if (!lpfc_is_link_up(phba))
3698                 return 0;
3699
3700         switch (phba->fc_linkspeed) {
3701         case LPFC_LINK_SPEED_1GHZ:
3702                 link_speed = 1000;
3703                 break;
3704         case LPFC_LINK_SPEED_2GHZ:
3705                 link_speed = 2000;
3706                 break;
3707         case LPFC_LINK_SPEED_4GHZ:
3708                 link_speed = 4000;
3709                 break;
3710         case LPFC_LINK_SPEED_8GHZ:
3711                 link_speed = 8000;
3712                 break;
3713         case LPFC_LINK_SPEED_10GHZ:
3714                 link_speed = 10000;
3715                 break;
3716         case LPFC_LINK_SPEED_16GHZ:
3717                 link_speed = 16000;
3718                 break;
3719         default:
3720                 link_speed = 0;
3721         }
3722         return link_speed;
3723 }
3724
3725 /**
3726  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3727  * @phba: pointer to lpfc hba data structure.
3728  * @evt_code: asynchronous event code.
3729  * @speed_code: asynchronous event link speed code.
3730  *
3731  * This routine is to parse the giving SLI4 async event link speed code into
3732  * value of Mbps for the link speed.
3733  *
3734  * Return: link speed in terms of Mbps.
3735  **/
3736 static uint32_t
3737 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3738                            uint8_t speed_code)
3739 {
3740         uint32_t port_speed;
3741
3742         switch (evt_code) {
3743         case LPFC_TRAILER_CODE_LINK:
3744                 switch (speed_code) {
3745                 case LPFC_EVT_CODE_LINK_NO_LINK:
3746                         port_speed = 0;
3747                         break;
3748                 case LPFC_EVT_CODE_LINK_10_MBIT:
3749                         port_speed = 10;
3750                         break;
3751                 case LPFC_EVT_CODE_LINK_100_MBIT:
3752                         port_speed = 100;
3753                         break;
3754                 case LPFC_EVT_CODE_LINK_1_GBIT:
3755                         port_speed = 1000;
3756                         break;
3757                 case LPFC_EVT_CODE_LINK_10_GBIT:
3758                         port_speed = 10000;
3759                         break;
3760                 default:
3761                         port_speed = 0;
3762                 }
3763                 break;
3764         case LPFC_TRAILER_CODE_FC:
3765                 switch (speed_code) {
3766                 case LPFC_EVT_CODE_FC_NO_LINK:
3767                         port_speed = 0;
3768                         break;
3769                 case LPFC_EVT_CODE_FC_1_GBAUD:
3770                         port_speed = 1000;
3771                         break;
3772                 case LPFC_EVT_CODE_FC_2_GBAUD:
3773                         port_speed = 2000;
3774                         break;
3775                 case LPFC_EVT_CODE_FC_4_GBAUD:
3776                         port_speed = 4000;
3777                         break;
3778                 case LPFC_EVT_CODE_FC_8_GBAUD:
3779                         port_speed = 8000;
3780                         break;
3781                 case LPFC_EVT_CODE_FC_10_GBAUD:
3782                         port_speed = 10000;
3783                         break;
3784                 case LPFC_EVT_CODE_FC_16_GBAUD:
3785                         port_speed = 16000;
3786                         break;
3787                 default:
3788                         port_speed = 0;
3789                 }
3790                 break;
3791         default:
3792                 port_speed = 0;
3793         }
3794         return port_speed;
3795 }
3796
3797 /**
3798  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3799  * @phba: pointer to lpfc hba data structure.
3800  * @acqe_link: pointer to the async link completion queue entry.
3801  *
3802  * This routine is to handle the SLI4 asynchronous FCoE link event.
3803  **/
3804 static void
3805 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3806                          struct lpfc_acqe_link *acqe_link)
3807 {
3808         struct lpfc_dmabuf *mp;
3809         LPFC_MBOXQ_t *pmb;
3810         MAILBOX_t *mb;
3811         struct lpfc_mbx_read_top *la;
3812         uint8_t att_type;
3813         int rc;
3814
3815         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3816         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3817                 return;
3818         phba->fcoe_eventtag = acqe_link->event_tag;
3819         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3820         if (!pmb) {
3821                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3822                                 "0395 The mboxq allocation failed\n");
3823                 return;
3824         }
3825         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3826         if (!mp) {
3827                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3828                                 "0396 The lpfc_dmabuf allocation failed\n");
3829                 goto out_free_pmb;
3830         }
3831         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3832         if (!mp->virt) {
3833                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3834                                 "0397 The mbuf allocation failed\n");
3835                 goto out_free_dmabuf;
3836         }
3837
3838         /* Cleanup any outstanding ELS commands */
3839         lpfc_els_flush_all_cmd(phba);
3840
3841         /* Block ELS IOCBs until we have done process link event */
3842         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3843
3844         /* Update link event statistics */
3845         phba->sli.slistat.link_event++;
3846
3847         /* Create lpfc_handle_latt mailbox command from link ACQE */
3848         lpfc_read_topology(phba, pmb, mp);
3849         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3850         pmb->vport = phba->pport;
3851
3852         /* Keep the link status for extra SLI4 state machine reference */
3853         phba->sli4_hba.link_state.speed =
3854                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3855                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3856         phba->sli4_hba.link_state.duplex =
3857                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3858         phba->sli4_hba.link_state.status =
3859                                 bf_get(lpfc_acqe_link_status, acqe_link);
3860         phba->sli4_hba.link_state.type =
3861                                 bf_get(lpfc_acqe_link_type, acqe_link);
3862         phba->sli4_hba.link_state.number =
3863                                 bf_get(lpfc_acqe_link_number, acqe_link);
3864         phba->sli4_hba.link_state.fault =
3865                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3866         phba->sli4_hba.link_state.logical_speed =
3867                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3868
3869         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3870                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3871                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3872                         "Logical speed:%dMbps Fault:%d\n",
3873                         phba->sli4_hba.link_state.speed,
3874                         phba->sli4_hba.link_state.topology,
3875                         phba->sli4_hba.link_state.status,
3876                         phba->sli4_hba.link_state.type,
3877                         phba->sli4_hba.link_state.number,
3878                         phba->sli4_hba.link_state.logical_speed,
3879                         phba->sli4_hba.link_state.fault);
3880         /*
3881          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3882          * topology info. Note: Optional for non FC-AL ports.
3883          */
3884         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3885                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3886                 if (rc == MBX_NOT_FINISHED)
3887                         goto out_free_dmabuf;
3888                 return;
3889         }
3890         /*
3891          * For FCoE Mode: fill in all the topology information we need and call
3892          * the READ_TOPOLOGY completion routine to continue without actually
3893          * sending the READ_TOPOLOGY mailbox command to the port.
3894          */
3895         /* Parse and translate status field */
3896         mb = &pmb->u.mb;
3897         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3898
3899         /* Parse and translate link attention fields */
3900         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3901         la->eventTag = acqe_link->event_tag;
3902         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3903         bf_set(lpfc_mbx_read_top_link_spd, la,
3904                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3905
3906         /* Fake the the following irrelvant fields */
3907         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3908         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3909         bf_set(lpfc_mbx_read_top_il, la, 0);
3910         bf_set(lpfc_mbx_read_top_pb, la, 0);
3911         bf_set(lpfc_mbx_read_top_fa, la, 0);
3912         bf_set(lpfc_mbx_read_top_mm, la, 0);
3913
3914         /* Invoke the lpfc_handle_latt mailbox command callback function */
3915         lpfc_mbx_cmpl_read_topology(phba, pmb);
3916
3917         return;
3918
3919 out_free_dmabuf:
3920         kfree(mp);
3921 out_free_pmb:
3922         mempool_free(pmb, phba->mbox_mem_pool);
3923 }
3924
3925 /**
3926  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3927  * @phba: pointer to lpfc hba data structure.
3928  * @acqe_fc: pointer to the async fc completion queue entry.
3929  *
3930  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3931  * that the event was received and then issue a read_topology mailbox command so
3932  * that the rest of the driver will treat it the same as SLI3.
3933  **/
3934 static void
3935 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3936 {
3937         struct lpfc_dmabuf *mp;
3938         LPFC_MBOXQ_t *pmb;
3939         int rc;
3940
3941         if (bf_get(lpfc_trailer_type, acqe_fc) !=
3942             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3943                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3944                                 "2895 Non FC link Event detected.(%d)\n",
3945                                 bf_get(lpfc_trailer_type, acqe_fc));
3946                 return;
3947         }
3948         /* Keep the link status for extra SLI4 state machine reference */
3949         phba->sli4_hba.link_state.speed =
3950                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
3951                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
3952         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3953         phba->sli4_hba.link_state.topology =
3954                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3955         phba->sli4_hba.link_state.status =
3956                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3957         phba->sli4_hba.link_state.type =
3958                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3959         phba->sli4_hba.link_state.number =
3960                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3961         phba->sli4_hba.link_state.fault =
3962                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
3963         phba->sli4_hba.link_state.logical_speed =
3964                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
3965         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3966                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3967                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3968                         "%dMbps Fault:%d\n",
3969                         phba->sli4_hba.link_state.speed,
3970                         phba->sli4_hba.link_state.topology,
3971                         phba->sli4_hba.link_state.status,
3972                         phba->sli4_hba.link_state.type,
3973                         phba->sli4_hba.link_state.number,
3974                         phba->sli4_hba.link_state.logical_speed,
3975                         phba->sli4_hba.link_state.fault);
3976         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3977         if (!pmb) {
3978                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3979                                 "2897 The mboxq allocation failed\n");
3980                 return;
3981         }
3982         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3983         if (!mp) {
3984                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3985                                 "2898 The lpfc_dmabuf allocation failed\n");
3986                 goto out_free_pmb;
3987         }
3988         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3989         if (!mp->virt) {
3990                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3991                                 "2899 The mbuf allocation failed\n");
3992                 goto out_free_dmabuf;
3993         }
3994
3995         /* Cleanup any outstanding ELS commands */
3996         lpfc_els_flush_all_cmd(phba);
3997
3998         /* Block ELS IOCBs until we have done process link event */
3999         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
4000
4001         /* Update link event statistics */
4002         phba->sli.slistat.link_event++;
4003
4004         /* Create lpfc_handle_latt mailbox command from link ACQE */
4005         lpfc_read_topology(phba, pmb, mp);
4006         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4007         pmb->vport = phba->pport;
4008
4009         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4010         if (rc == MBX_NOT_FINISHED)
4011                 goto out_free_dmabuf;
4012         return;
4013
4014 out_free_dmabuf:
4015         kfree(mp);
4016 out_free_pmb:
4017         mempool_free(pmb, phba->mbox_mem_pool);
4018 }
4019
4020 /**
4021  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4022  * @phba: pointer to lpfc hba data structure.
4023  * @acqe_fc: pointer to the async SLI completion queue entry.
4024  *
4025  * This routine is to handle the SLI4 asynchronous SLI events.
4026  **/
4027 static void
4028 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4029 {
4030         char port_name;
4031         char message[128];
4032         uint8_t status;
4033         struct lpfc_acqe_misconfigured_event *misconfigured;
4034
4035         /* special case misconfigured event as it contains data for all ports */
4036         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
4037                  LPFC_SLI_INTF_IF_TYPE_2) ||
4038                 (bf_get(lpfc_trailer_type, acqe_sli) !=
4039                         LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) {
4040                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4041                                 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4042                                 "x%08x SLI Event Type:%d\n",
4043                                 acqe_sli->event_data1, acqe_sli->event_data2,
4044                                 bf_get(lpfc_trailer_type, acqe_sli));
4045                 return;
4046         }
4047
4048         port_name = phba->Port[0];
4049         if (port_name == 0x00)
4050                 port_name = '?'; /* get port name is empty */
4051
4052         misconfigured = (struct lpfc_acqe_misconfigured_event *)
4053                                         &acqe_sli->event_data1;
4054
4055         /* fetch the status for this port */
4056         switch (phba->sli4_hba.lnk_info.lnk_no) {
4057         case LPFC_LINK_NUMBER_0:
4058                 status = bf_get(lpfc_sli_misconfigured_port0,
4059                                         &misconfigured->theEvent);
4060                 break;
4061         case LPFC_LINK_NUMBER_1:
4062                 status = bf_get(lpfc_sli_misconfigured_port1,
4063                                         &misconfigured->theEvent);
4064                 break;
4065         case LPFC_LINK_NUMBER_2:
4066                 status = bf_get(lpfc_sli_misconfigured_port2,
4067                                         &misconfigured->theEvent);
4068                 break;
4069         case LPFC_LINK_NUMBER_3:
4070                 status = bf_get(lpfc_sli_misconfigured_port3,
4071                                         &misconfigured->theEvent);
4072                 break;
4073         default:
4074                 status = ~LPFC_SLI_EVENT_STATUS_VALID;
4075                 break;
4076         }
4077
4078         switch (status) {
4079         case LPFC_SLI_EVENT_STATUS_VALID:
4080                 return; /* no message if the sfp is okay */
4081         case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4082                 sprintf(message, "Optics faulted/incorrectly installed/not " \
4083                                 "installed - Reseat optics, if issue not "
4084                                 "resolved, replace.");
4085                 break;
4086         case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4087                 sprintf(message,
4088                         "Optics of two types installed - Remove one optic or " \
4089                         "install matching pair of optics.");
4090                 break;
4091         case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4092                 sprintf(message, "Incompatible optics - Replace with " \
4093                                 "compatible optics for card to function.");
4094                 break;
4095         default:
4096                 /* firmware is reporting a status we don't know about */
4097                 sprintf(message, "Unknown event status x%02x", status);
4098                 break;
4099         }
4100
4101         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4102                         "3176 Misconfigured Physical Port - "
4103                         "Port Name %c %s\n", port_name, message);
4104 }
4105
4106 /**
4107  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4108  * @vport: pointer to vport data structure.
4109  *
4110  * This routine is to perform Clear Virtual Link (CVL) on a vport in
4111  * response to a CVL event.
4112  *
4113  * Return the pointer to the ndlp with the vport if successful, otherwise
4114  * return NULL.
4115  **/
4116 static struct lpfc_nodelist *
4117 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4118 {
4119         struct lpfc_nodelist *ndlp;
4120         struct Scsi_Host *shost;
4121         struct lpfc_hba *phba;
4122
4123         if (!vport)
4124                 return NULL;
4125         phba = vport->phba;
4126         if (!phba)
4127                 return NULL;
4128         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4129         if (!ndlp) {
4130                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4131                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4132                 if (!ndlp)
4133                         return 0;
4134                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4135                 /* Set the node type */
4136                 ndlp->nlp_type |= NLP_FABRIC;
4137                 /* Put ndlp onto node list */
4138                 lpfc_enqueue_node(vport, ndlp);
4139         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4140                 /* re-setup ndlp without removing from node list */
4141                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4142                 if (!ndlp)
4143                         return 0;
4144         }
4145         if ((phba->pport->port_state < LPFC_FLOGI) &&
4146                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4147                 return NULL;
4148         /* If virtual link is not yet instantiated ignore CVL */
4149         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4150                 && (vport->port_state != LPFC_VPORT_FAILED))
4151                 return NULL;
4152         shost = lpfc_shost_from_vport(vport);
4153         if (!shost)
4154                 return NULL;
4155         lpfc_linkdown_port(vport);
4156         lpfc_cleanup_pending_mbox(vport);
4157         spin_lock_irq(shost->host_lock);
4158         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4159         spin_unlock_irq(shost->host_lock);
4160
4161         return ndlp;
4162 }
4163
4164 /**
4165  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4166  * @vport: pointer to lpfc hba data structure.
4167  *
4168  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4169  * response to a FCF dead event.
4170  **/
4171 static void
4172 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4173 {
4174         struct lpfc_vport **vports;
4175         int i;
4176
4177         vports = lpfc_create_vport_work_array(phba);
4178         if (vports)
4179                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4180                         lpfc_sli4_perform_vport_cvl(vports[i]);
4181         lpfc_destroy_vport_work_array(phba, vports);
4182 }
4183
4184 /**
4185  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4186  * @phba: pointer to lpfc hba data structure.
4187  * @acqe_link: pointer to the async fcoe completion queue entry.
4188  *
4189  * This routine is to handle the SLI4 asynchronous fcoe event.
4190  **/
4191 static void
4192 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4193                         struct lpfc_acqe_fip *acqe_fip)
4194 {
4195         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4196         int rc;
4197         struct lpfc_vport *vport;
4198         struct lpfc_nodelist *ndlp;
4199         struct Scsi_Host  *shost;
4200         int active_vlink_present;
4201         struct lpfc_vport **vports;
4202         int i;
4203
4204         phba->fc_eventTag = acqe_fip->event_tag;
4205         phba->fcoe_eventtag = acqe_fip->event_tag;
4206         switch (event_type) {
4207         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4208         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4209                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4210                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4211                                         LOG_DISCOVERY,
4212                                         "2546 New FCF event, evt_tag:x%x, "
4213                                         "index:x%x\n",
4214                                         acqe_fip->event_tag,
4215                                         acqe_fip->index);
4216                 else
4217                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4218                                         LOG_DISCOVERY,
4219                                         "2788 FCF param modified event, "
4220                                         "evt_tag:x%x, index:x%x\n",
4221                                         acqe_fip->event_tag,
4222                                         acqe_fip->index);
4223                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4224                         /*
4225                          * During period of FCF discovery, read the FCF
4226                          * table record indexed by the event to update
4227                          * FCF roundrobin failover eligible FCF bmask.
4228                          */
4229                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4230                                         LOG_DISCOVERY,
4231                                         "2779 Read FCF (x%x) for updating "
4232                                         "roundrobin FCF failover bmask\n",
4233                                         acqe_fip->index);
4234                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4235                 }
4236
4237                 /* If the FCF discovery is in progress, do nothing. */
4238                 spin_lock_irq(&phba->hbalock);
4239                 if (phba->hba_flag & FCF_TS_INPROG) {
4240                         spin_unlock_irq(&phba->hbalock);
4241                         break;
4242                 }
4243                 /* If fast FCF failover rescan event is pending, do nothing */
4244                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4245                         spin_unlock_irq(&phba->hbalock);
4246                         break;
4247                 }
4248
4249                 /* If the FCF has been in discovered state, do nothing. */
4250                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4251                         spin_unlock_irq(&phba->hbalock);
4252                         break;
4253                 }
4254                 spin_unlock_irq(&phba->hbalock);
4255
4256                 /* Otherwise, scan the entire FCF table and re-discover SAN */
4257                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4258                                 "2770 Start FCF table scan per async FCF "
4259                                 "event, evt_tag:x%x, index:x%x\n",
4260                                 acqe_fip->event_tag, acqe_fip->index);
4261                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4262                                                      LPFC_FCOE_FCF_GET_FIRST);
4263                 if (rc)
4264                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4265                                         "2547 Issue FCF scan read FCF mailbox "
4266                                         "command failed (x%x)\n", rc);
4267                 break;
4268
4269         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4270                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4271                         "2548 FCF Table full count 0x%x tag 0x%x\n",
4272                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4273                         acqe_fip->event_tag);
4274                 break;
4275
4276         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4277                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4278                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4279                         "2549 FCF (x%x) disconnected from network, "
4280                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4281                 /*
4282                  * If we are in the middle of FCF failover process, clear
4283                  * the corresponding FCF bit in the roundrobin bitmap.
4284                  */
4285                 spin_lock_irq(&phba->hbalock);
4286                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4287                         spin_unlock_irq(&phba->hbalock);
4288                         /* Update FLOGI FCF failover eligible FCF bmask */
4289                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4290                         break;
4291                 }
4292                 spin_unlock_irq(&phba->hbalock);
4293
4294                 /* If the event is not for currently used fcf do nothing */
4295                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4296                         break;
4297
4298                 /*
4299                  * Otherwise, request the port to rediscover the entire FCF
4300                  * table for a fast recovery from case that the current FCF
4301                  * is no longer valid as we are not in the middle of FCF
4302                  * failover process already.
4303                  */
4304                 spin_lock_irq(&phba->hbalock);
4305                 /* Mark the fast failover process in progress */
4306                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4307                 spin_unlock_irq(&phba->hbalock);
4308
4309                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4310                                 "2771 Start FCF fast failover process due to "
4311                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4312                                 "\n", acqe_fip->event_tag, acqe_fip->index);
4313                 rc = lpfc_sli4_redisc_fcf_table(phba);
4314                 if (rc) {
4315                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4316                                         LOG_DISCOVERY,
4317                                         "2772 Issue FCF rediscover mabilbox "
4318                                         "command failed, fail through to FCF "
4319                                         "dead event\n");
4320                         spin_lock_irq(&phba->hbalock);
4321                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4322                         spin_unlock_irq(&phba->hbalock);
4323                         /*
4324                          * Last resort will fail over by treating this
4325                          * as a link down to FCF registration.
4326                          */
4327                         lpfc_sli4_fcf_dead_failthrough(phba);
4328                 } else {
4329                         /* Reset FCF roundrobin bmask for new discovery */
4330                         lpfc_sli4_clear_fcf_rr_bmask(phba);
4331                         /*
4332                          * Handling fast FCF failover to a DEAD FCF event is
4333                          * considered equalivant to receiving CVL to all vports.
4334                          */
4335                         lpfc_sli4_perform_all_vport_cvl(phba);
4336                 }
4337                 break;
4338         case LPFC_FIP_EVENT_TYPE_CVL:
4339                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4340                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4341                         "2718 Clear Virtual Link Received for VPI 0x%x"
4342                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4343
4344                 vport = lpfc_find_vport_by_vpid(phba,
4345                                                 acqe_fip->index);
4346                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4347                 if (!ndlp)
4348                         break;
4349                 active_vlink_present = 0;
4350
4351                 vports = lpfc_create_vport_work_array(phba);
4352                 if (vports) {
4353                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4354                                         i++) {
4355                                 if ((!(vports[i]->fc_flag &
4356                                         FC_VPORT_CVL_RCVD)) &&
4357                                         (vports[i]->port_state > LPFC_FDISC)) {
4358                                         active_vlink_present = 1;
4359                                         break;
4360                                 }
4361                         }
4362                         lpfc_destroy_vport_work_array(phba, vports);
4363                 }
4364
4365                 if (active_vlink_present) {
4366                         /*
4367                          * If there are other active VLinks present,
4368                          * re-instantiate the Vlink using FDISC.
4369                          */
4370                         mod_timer(&ndlp->nlp_delayfunc,
4371                                   jiffies + msecs_to_jiffies(1000));
4372                         shost = lpfc_shost_from_vport(vport);
4373                         spin_lock_irq(shost->host_lock);
4374                         ndlp->nlp_flag |= NLP_DELAY_TMO;
4375                         spin_unlock_irq(shost->host_lock);
4376                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4377                         vport->port_state = LPFC_FDISC;
4378                 } else {
4379                         /*
4380                          * Otherwise, we request port to rediscover
4381                          * the entire FCF table for a fast recovery
4382                          * from possible case that the current FCF
4383                          * is no longer valid if we are not already
4384                          * in the FCF failover process.
4385                          */
4386                         spin_lock_irq(&phba->hbalock);
4387                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4388                                 spin_unlock_irq(&phba->hbalock);
4389                                 break;
4390                         }
4391                         /* Mark the fast failover process in progress */
4392                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4393                         spin_unlock_irq(&phba->hbalock);
4394                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4395                                         LOG_DISCOVERY,
4396                                         "2773 Start FCF failover per CVL, "
4397                                         "evt_tag:x%x\n", acqe_fip->event_tag);
4398                         rc = lpfc_sli4_redisc_fcf_table(phba);
4399                         if (rc) {
4400                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4401                                                 LOG_DISCOVERY,
4402                                                 "2774 Issue FCF rediscover "
4403                                                 "mabilbox command failed, "
4404                                                 "through to CVL event\n");
4405                                 spin_lock_irq(&phba->hbalock);
4406                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4407                                 spin_unlock_irq(&phba->hbalock);
4408                                 /*
4409                                  * Last resort will be re-try on the
4410                                  * the current registered FCF entry.
4411                                  */
4412                                 lpfc_retry_pport_discovery(phba);
4413                         } else
4414                                 /*
4415                                  * Reset FCF roundrobin bmask for new
4416                                  * discovery.
4417                                  */
4418                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
4419                 }
4420                 break;
4421         default:
4422                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4423                         "0288 Unknown FCoE event type 0x%x event tag "
4424                         "0x%x\n", event_type, acqe_fip->event_tag);
4425                 break;
4426         }
4427 }
4428
4429 /**
4430  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4431  * @phba: pointer to lpfc hba data structure.
4432  * @acqe_link: pointer to the async dcbx completion queue entry.
4433  *
4434  * This routine is to handle the SLI4 asynchronous dcbx event.
4435  **/
4436 static void
4437 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4438                          struct lpfc_acqe_dcbx *acqe_dcbx)
4439 {
4440         phba->fc_eventTag = acqe_dcbx->event_tag;
4441         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4442                         "0290 The SLI4 DCBX asynchronous event is not "
4443                         "handled yet\n");
4444 }
4445
4446 /**
4447  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4448  * @phba: pointer to lpfc hba data structure.
4449  * @acqe_link: pointer to the async grp5 completion queue entry.
4450  *
4451  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4452  * is an asynchronous notified of a logical link speed change.  The Port
4453  * reports the logical link speed in units of 10Mbps.
4454  **/
4455 static void
4456 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4457                          struct lpfc_acqe_grp5 *acqe_grp5)
4458 {
4459         uint16_t prev_ll_spd;
4460
4461         phba->fc_eventTag = acqe_grp5->event_tag;
4462         phba->fcoe_eventtag = acqe_grp5->event_tag;
4463         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4464         phba->sli4_hba.link_state.logical_speed =
4465                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4466         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4467                         "2789 GRP5 Async Event: Updating logical link speed "
4468                         "from %dMbps to %dMbps\n", prev_ll_spd,
4469                         phba->sli4_hba.link_state.logical_speed);
4470 }
4471
4472 /**
4473  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4474  * @phba: pointer to lpfc hba data structure.
4475  *
4476  * This routine is invoked by the worker thread to process all the pending
4477  * SLI4 asynchronous events.
4478  **/
4479 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4480 {
4481         struct lpfc_cq_event *cq_event;
4482
4483         /* First, declare the async event has been handled */
4484         spin_lock_irq(&phba->hbalock);
4485         phba->hba_flag &= ~ASYNC_EVENT;
4486         spin_unlock_irq(&phba->hbalock);
4487         /* Now, handle all the async events */
4488         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4489                 /* Get the first event from the head of the event queue */
4490                 spin_lock_irq(&phba->hbalock);
4491                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4492                                  cq_event, struct lpfc_cq_event, list);
4493                 spin_unlock_irq(&phba->hbalock);
4494                 /* Process the asynchronous event */
4495                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4496                 case LPFC_TRAILER_CODE_LINK:
4497                         lpfc_sli4_async_link_evt(phba,
4498                                                  &cq_event->cqe.acqe_link);
4499                         break;
4500                 case LPFC_TRAILER_CODE_FCOE:
4501                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4502                         break;
4503                 case LPFC_TRAILER_CODE_DCBX:
4504                         lpfc_sli4_async_dcbx_evt(phba,
4505                                                  &cq_event->cqe.acqe_dcbx);
4506                         break;
4507                 case LPFC_TRAILER_CODE_GRP5:
4508                         lpfc_sli4_async_grp5_evt(phba,
4509                                                  &cq_event->cqe.acqe_grp5);
4510                         break;
4511                 case LPFC_TRAILER_CODE_FC:
4512                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4513                         break;
4514                 case LPFC_TRAILER_CODE_SLI:
4515                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4516                         break;
4517                 default:
4518                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4519                                         "1804 Invalid asynchrous event code: "
4520                                         "x%x\n", bf_get(lpfc_trailer_code,
4521                                         &cq_event->cqe.mcqe_cmpl));
4522                         break;
4523                 }
4524                 /* Free the completion event processed to the free pool */
4525                 lpfc_sli4_cq_event_release(phba, cq_event);
4526         }
4527 }
4528
4529 /**
4530  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4531  * @phba: pointer to lpfc hba data structure.
4532  *
4533  * This routine is invoked by the worker thread to process FCF table
4534  * rediscovery pending completion event.
4535  **/
4536 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4537 {
4538         int rc;
4539
4540         spin_lock_irq(&phba->hbalock);
4541         /* Clear FCF rediscovery timeout event */
4542         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4543         /* Clear driver fast failover FCF record flag */
4544         phba->fcf.failover_rec.flag = 0;
4545         /* Set state for FCF fast failover */
4546         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4547         spin_unlock_irq(&phba->hbalock);
4548
4549         /* Scan FCF table from the first entry to re-discover SAN */
4550         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4551                         "2777 Start post-quiescent FCF table scan\n");
4552         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4553         if (rc)
4554                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4555                                 "2747 Issue FCF scan read FCF mailbox "
4556                                 "command failed 0x%x\n", rc);
4557 }
4558
4559 /**
4560  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4561  * @phba: pointer to lpfc hba data structure.
4562  * @dev_grp: The HBA PCI-Device group number.
4563  *
4564  * This routine is invoked to set up the per HBA PCI-Device group function
4565  * API jump table entries.
4566  *
4567  * Return: 0 if success, otherwise -ENODEV
4568  **/
4569 int
4570 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4571 {
4572         int rc;
4573
4574         /* Set up lpfc PCI-device group */
4575         phba->pci_dev_grp = dev_grp;
4576
4577         /* The LPFC_PCI_DEV_OC uses SLI4 */
4578         if (dev_grp == LPFC_PCI_DEV_OC)
4579                 phba->sli_rev = LPFC_SLI_REV4;
4580
4581         /* Set up device INIT API function jump table */
4582         rc = lpfc_init_api_table_setup(phba, dev_grp);
4583         if (rc)
4584                 return -ENODEV;
4585         /* Set up SCSI API function jump table */
4586         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4587         if (rc)
4588                 return -ENODEV;
4589         /* Set up SLI API function jump table */
4590         rc = lpfc_sli_api_table_setup(phba, dev_grp);
4591         if (rc)
4592                 return -ENODEV;
4593         /* Set up MBOX API function jump table */
4594         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4595         if (rc)
4596                 return -ENODEV;
4597
4598         return 0;
4599 }
4600
4601 /**
4602  * lpfc_log_intr_mode - Log the active interrupt mode
4603  * @phba: pointer to lpfc hba data structure.
4604  * @intr_mode: active interrupt mode adopted.
4605  *
4606  * This routine it invoked to log the currently used active interrupt mode
4607  * to the device.
4608  **/
4609 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4610 {
4611         switch (intr_mode) {
4612         case 0:
4613                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4614                                 "0470 Enable INTx interrupt mode.\n");
4615                 break;
4616         case 1:
4617                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4618                                 "0481 Enabled MSI interrupt mode.\n");
4619                 break;
4620         case 2:
4621                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4622                                 "0480 Enabled MSI-X interrupt mode.\n");
4623                 break;
4624         default:
4625                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4626                                 "0482 Illegal interrupt mode.\n");
4627                 break;
4628         }
4629         return;
4630 }
4631
4632 /**
4633  * lpfc_enable_pci_dev - Enable a generic PCI device.
4634  * @phba: pointer to lpfc hba data structure.
4635  *
4636  * This routine is invoked to enable the PCI device that is common to all
4637  * PCI devices.
4638  *
4639  * Return codes
4640  *      0 - successful
4641  *      other values - error
4642  **/
4643 static int
4644 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4645 {
4646         struct pci_dev *pdev;
4647         int bars = 0;
4648
4649         /* Obtain PCI device reference */
4650         if (!phba->pcidev)
4651                 goto out_error;
4652         else
4653                 pdev = phba->pcidev;
4654         /* Select PCI BARs */
4655         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4656         /* Enable PCI device */
4657         if (pci_enable_device_mem(pdev))
4658                 goto out_error;
4659         /* Request PCI resource for the device */
4660         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4661                 goto out_disable_device;
4662         /* Set up device as PCI master and save state for EEH */
4663         pci_set_master(pdev);
4664         pci_try_set_mwi(pdev);
4665         pci_save_state(pdev);
4666
4667         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4668         if (pci_is_pcie(pdev))
4669                 pdev->needs_freset = 1;
4670
4671         return 0;
4672
4673 out_disable_device:
4674         pci_disable_device(pdev);
4675 out_error:
4676         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4677                         "1401 Failed to enable pci device, bars:x%x\n", bars);
4678         return -ENODEV;
4679 }
4680
4681 /**
4682  * lpfc_disable_pci_dev - Disable a generic PCI device.
4683  * @phba: pointer to lpfc hba data structure.
4684  *
4685  * This routine is invoked to disable the PCI device that is common to all
4686  * PCI devices.
4687  **/
4688 static void
4689 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4690 {
4691         struct pci_dev *pdev;
4692         int bars;
4693
4694         /* Obtain PCI device reference */
4695         if (!phba->pcidev)
4696                 return;
4697         else
4698                 pdev = phba->pcidev;
4699         /* Select PCI BARs */
4700         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4701         /* Release PCI resource and disable PCI device */
4702         pci_release_selected_regions(pdev, bars);
4703         pci_disable_device(pdev);
4704
4705         return;
4706 }
4707
4708 /**
4709  * lpfc_reset_hba - Reset a hba
4710  * @phba: pointer to lpfc hba data structure.
4711  *
4712  * This routine is invoked to reset a hba device. It brings the HBA
4713  * offline, performs a board restart, and then brings the board back
4714  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4715  * on outstanding mailbox commands.
4716  **/
4717 void
4718 lpfc_reset_hba(struct lpfc_hba *phba)
4719 {
4720         /* If resets are disabled then set error state and return. */
4721         if (!phba->cfg_enable_hba_reset) {
4722                 phba->link_state = LPFC_HBA_ERROR;
4723                 return;
4724         }
4725         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
4726                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4727         else
4728                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
4729         lpfc_offline(phba);
4730         lpfc_sli_brdrestart(phba);
4731         lpfc_online(phba);
4732         lpfc_unblock_mgmt_io(phba);
4733 }
4734
4735 /**
4736  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4737  * @phba: pointer to lpfc hba data structure.
4738  *
4739  * This function enables the PCI SR-IOV virtual functions to a physical
4740  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4741  * enable the number of virtual functions to the physical function. As
4742  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4743  * API call does not considered as an error condition for most of the device.
4744  **/
4745 uint16_t
4746 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4747 {
4748         struct pci_dev *pdev = phba->pcidev;
4749         uint16_t nr_virtfn;
4750         int pos;
4751
4752         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4753         if (pos == 0)
4754                 return 0;
4755
4756         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4757         return nr_virtfn;
4758 }
4759
4760 /**
4761  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4762  * @phba: pointer to lpfc hba data structure.
4763  * @nr_vfn: number of virtual functions to be enabled.
4764  *
4765  * This function enables the PCI SR-IOV virtual functions to a physical
4766  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4767  * enable the number of virtual functions to the physical function. As
4768  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4769  * API call does not considered as an error condition for most of the device.
4770  **/
4771 int
4772 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4773 {
4774         struct pci_dev *pdev = phba->pcidev;
4775         uint16_t max_nr_vfn;
4776         int rc;
4777
4778         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4779         if (nr_vfn > max_nr_vfn) {
4780                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4781                                 "3057 Requested vfs (%d) greater than "
4782                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4783                 return -EINVAL;
4784         }
4785
4786         rc = pci_enable_sriov(pdev, nr_vfn);
4787         if (rc) {
4788                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4789                                 "2806 Failed to enable sriov on this device "
4790                                 "with vfn number nr_vf:%d, rc:%d\n",
4791                                 nr_vfn, rc);
4792         } else
4793                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4794                                 "2807 Successful enable sriov on this device "
4795                                 "with vfn number nr_vf:%d\n", nr_vfn);
4796         return rc;
4797 }
4798
4799 /**
4800  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4801  * @phba: pointer to lpfc hba data structure.
4802  *
4803  * This routine is invoked to set up the driver internal resources specific to
4804  * support the SLI-3 HBA device it attached to.
4805  *
4806  * Return codes
4807  *      0 - successful
4808  *      other values - error
4809  **/
4810 static int
4811 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4812 {
4813         struct lpfc_sli *psli;
4814         int rc;
4815
4816         /*
4817          * Initialize timers used by driver
4818          */
4819
4820         /* Heartbeat timer */
4821         init_timer(&phba->hb_tmofunc);
4822         phba->hb_tmofunc.function = lpfc_hb_timeout;
4823         phba->hb_tmofunc.data = (unsigned long)phba;
4824
4825         psli = &phba->sli;
4826         /* MBOX heartbeat timer */
4827         init_timer(&psli->mbox_tmo);
4828         psli->mbox_tmo.function = lpfc_mbox_timeout;
4829         psli->mbox_tmo.data = (unsigned long) phba;
4830         /* FCP polling mode timer */
4831         init_timer(&phba->fcp_poll_timer);
4832         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4833         phba->fcp_poll_timer.data = (unsigned long) phba;
4834         /* Fabric block timer */
4835         init_timer(&phba->fabric_block_timer);
4836         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4837         phba->fabric_block_timer.data = (unsigned long) phba;
4838         /* EA polling mode timer */
4839         init_timer(&phba->eratt_poll);
4840         phba->eratt_poll.function = lpfc_poll_eratt;
4841         phba->eratt_poll.data = (unsigned long) phba;
4842
4843         /* Host attention work mask setup */
4844         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4845         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4846
4847         /* Get all the module params for configuring this host */
4848         lpfc_get_cfgparam(phba);
4849         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4850                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4851                 /* check for menlo minimum sg count */
4852                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4853                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4854         }
4855
4856         if (!phba->sli.ring)
4857                 phba->sli.ring = (struct lpfc_sli_ring *)
4858                         kzalloc(LPFC_SLI3_MAX_RING *
4859                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4860         if (!phba->sli.ring)
4861                 return -ENOMEM;
4862
4863         /*
4864          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4865          * used to create the sg_dma_buf_pool must be dynamically calculated.
4866          */
4867
4868         /* Initialize the host templates the configured values. */
4869         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4870         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4871
4872         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
4873         if (phba->cfg_enable_bg) {
4874                 /*
4875                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
4876                  * the FCP rsp, and a BDE for each. Sice we have no control
4877                  * over how many protection data segments the SCSI Layer
4878                  * will hand us (ie: there could be one for every block
4879                  * in the IO), we just allocate enough BDEs to accomidate
4880                  * our max amount and we need to limit lpfc_sg_seg_cnt to
4881                  * minimize the risk of running out.
4882                  */
4883                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4884                         sizeof(struct fcp_rsp) +
4885                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
4886
4887                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
4888                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
4889
4890                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
4891                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4892         } else {
4893                 /*
4894                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
4895                  * the FCP rsp, a BDE for each, and a BDE for up to
4896                  * cfg_sg_seg_cnt data segments.
4897                  */
4898                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4899                         sizeof(struct fcp_rsp) +
4900                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4901
4902                 /* Total BDEs in BPL for scsi_sg_list */
4903                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
4904         }
4905
4906         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4907                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
4908                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
4909                         phba->cfg_total_seg_cnt);
4910
4911         phba->max_vpi = LPFC_MAX_VPI;
4912         /* This will be set to correct value after config_port mbox */
4913         phba->max_vports = 0;
4914
4915         /*
4916          * Initialize the SLI Layer to run with lpfc HBAs.
4917          */
4918         lpfc_sli_setup(phba);
4919         lpfc_sli_queue_setup(phba);
4920
4921         /* Allocate device driver memory */
4922         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4923                 return -ENOMEM;
4924
4925         /*
4926          * Enable sr-iov virtual functions if supported and configured
4927          * through the module parameter.
4928          */
4929         if (phba->cfg_sriov_nr_virtfn > 0) {
4930                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4931                                                  phba->cfg_sriov_nr_virtfn);
4932                 if (rc) {
4933                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4934                                         "2808 Requested number of SR-IOV "
4935                                         "virtual functions (%d) is not "
4936                                         "supported\n",
4937                                         phba->cfg_sriov_nr_virtfn);
4938                         phba->cfg_sriov_nr_virtfn = 0;
4939                 }
4940         }
4941
4942         return 0;
4943 }
4944
4945 /**
4946  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4947  * @phba: pointer to lpfc hba data structure.
4948  *
4949  * This routine is invoked to unset the driver internal resources set up
4950  * specific for supporting the SLI-3 HBA device it attached to.
4951  **/
4952 static void
4953 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4954 {
4955         /* Free device driver memory allocated */
4956         lpfc_mem_free_all(phba);
4957
4958         return;
4959 }
4960
4961 /**
4962  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4963  * @phba: pointer to lpfc hba data structure.
4964  *
4965  * This routine is invoked to set up the driver internal resources specific to
4966  * support the SLI-4 HBA device it attached to.
4967  *
4968  * Return codes
4969  *      0 - successful
4970  *      other values - error
4971  **/
4972 static int
4973 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4974 {
4975         struct lpfc_vector_map_info *cpup;
4976         struct lpfc_sli *psli;
4977         LPFC_MBOXQ_t *mboxq;
4978         int rc, i, hbq_count, max_buf_size;
4979         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4980         struct lpfc_mqe *mqe;
4981         int longs;
4982         int fof_vectors = 0;
4983
4984         /* Get all the module params for configuring this host */
4985         lpfc_get_cfgparam(phba);
4986
4987         /* Before proceed, wait for POST done and device ready */
4988         rc = lpfc_sli4_post_status_check(phba);
4989         if (rc)
4990                 return -ENODEV;
4991
4992         /*
4993          * Initialize timers used by driver
4994          */
4995
4996         /* Heartbeat timer */
4997         init_timer(&phba->hb_tmofunc);
4998         phba->hb_tmofunc.function = lpfc_hb_timeout;
4999         phba->hb_tmofunc.data = (unsigned long)phba;
5000         init_timer(&phba->rrq_tmr);
5001         phba->rrq_tmr.function = lpfc_rrq_timeout;
5002         phba->rrq_tmr.data = (unsigned long)phba;
5003
5004         psli = &phba->sli;
5005         /* MBOX heartbeat timer */
5006         init_timer(&psli->mbox_tmo);
5007         psli->mbox_tmo.function = lpfc_mbox_timeout;
5008         psli->mbox_tmo.data = (unsigned long) phba;
5009         /* Fabric block timer */
5010         init_timer(&phba->fabric_block_timer);
5011         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5012         phba->fabric_block_timer.data = (unsigned long) phba;
5013         /* EA polling mode timer */
5014         init_timer(&phba->eratt_poll);
5015         phba->eratt_poll.function = lpfc_poll_eratt;
5016         phba->eratt_poll.data = (unsigned long) phba;
5017         /* FCF rediscover timer */
5018         init_timer(&phba->fcf.redisc_wait);
5019         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
5020         phba->fcf.redisc_wait.data = (unsigned long)phba;
5021
5022         /*
5023          * Control structure for handling external multi-buffer mailbox
5024          * command pass-through.
5025          */
5026         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5027                 sizeof(struct lpfc_mbox_ext_buf_ctx));
5028         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5029
5030         phba->max_vpi = LPFC_MAX_VPI;
5031
5032         /* This will be set to correct value after the read_config mbox */
5033         phba->max_vports = 0;
5034
5035         /* Program the default value of vlan_id and fc_map */
5036         phba->valid_vlan = 0;
5037         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5038         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5039         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5040
5041         /*
5042          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5043          * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
5044          */
5045         if (!phba->sli.ring)
5046                 phba->sli.ring = kzalloc(
5047                         (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
5048                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5049         if (!phba->sli.ring)
5050                 return -ENOMEM;
5051
5052         /*
5053          * It doesn't matter what family our adapter is in, we are
5054          * limited to 2 Pages, 512 SGEs, for our SGL.
5055          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5056          */
5057         max_buf_size = (2 * SLI4_PAGE_SIZE);
5058         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5059                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5060
5061         /*
5062          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5063          * used to create the sg_dma_buf_pool must be dynamically calculated.
5064          */
5065
5066         if (phba->cfg_enable_bg) {
5067                 /*
5068                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5069                  * the FCP rsp, and a SGE for each. Sice we have no control
5070                  * over how many protection data segments the SCSI Layer
5071                  * will hand us (ie: there could be one for every block
5072                  * in the IO), we just allocate enough SGEs to accomidate
5073                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5074                  * minimize the risk of running out.
5075                  */
5076                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5077                         sizeof(struct fcp_rsp) + max_buf_size;
5078
5079                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5080                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5081
5082                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5083                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5084         } else {
5085                 /*
5086                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5087                  * the FCP rsp, a SGE for each, and a SGE for up to
5088                  * cfg_sg_seg_cnt data segments.
5089                  */
5090                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5091                         sizeof(struct fcp_rsp) +
5092                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
5093
5094                 /* Total SGEs for scsi_sg_list */
5095                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5096                 /*
5097                  * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
5098                  * to post 1 page for the SGL.
5099                  */
5100         }
5101
5102         /* Initialize the host templates with the updated values. */
5103         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5104         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5105
5106         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5107                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5108         else
5109                 phba->cfg_sg_dma_buf_size =
5110                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5111
5112         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5113                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5114                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5115                         phba->cfg_total_seg_cnt);
5116
5117         /* Initialize buffer queue management fields */
5118         hbq_count = lpfc_sli_hbq_count();
5119         for (i = 0; i < hbq_count; ++i)
5120                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5121         INIT_LIST_HEAD(&phba->rb_pend_list);
5122         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5123         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5124
5125         /*
5126          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5127          */
5128         /* Initialize the Abort scsi buffer list used by driver */
5129         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5130         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5131         /* This abort list used by worker thread */
5132         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5133
5134         /*
5135          * Initialize driver internal slow-path work queues
5136          */
5137
5138         /* Driver internel slow-path CQ Event pool */
5139         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5140         /* Response IOCB work queue list */
5141         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5142         /* Asynchronous event CQ Event work queue list */
5143         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5144         /* Fast-path XRI aborted CQ Event work queue list */
5145         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5146         /* Slow-path XRI aborted CQ Event work queue list */
5147         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5148         /* Receive queue CQ Event work queue list */
5149         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5150
5151         /* Initialize extent block lists. */
5152         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5153         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5154         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5155         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5156
5157         /* Initialize the driver internal SLI layer lists. */
5158         lpfc_sli_setup(phba);
5159         lpfc_sli_queue_setup(phba);
5160
5161         /* Allocate device driver memory */
5162         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5163         if (rc)
5164                 return -ENOMEM;
5165
5166         /* IF Type 2 ports get initialized now. */
5167         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5168             LPFC_SLI_INTF_IF_TYPE_2) {
5169                 rc = lpfc_pci_function_reset(phba);
5170                 if (unlikely(rc))
5171                         return -ENODEV;
5172         }
5173
5174         /* Create the bootstrap mailbox command */
5175         rc = lpfc_create_bootstrap_mbox(phba);
5176         if (unlikely(rc))
5177                 goto out_free_mem;
5178
5179         /* Set up the host's endian order with the device. */
5180         rc = lpfc_setup_endian_order(phba);
5181         if (unlikely(rc))
5182                 goto out_free_bsmbx;
5183
5184         /* Set up the hba's configuration parameters. */
5185         rc = lpfc_sli4_read_config(phba);
5186         if (unlikely(rc))
5187                 goto out_free_bsmbx;
5188         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5189         if (unlikely(rc))
5190                 goto out_free_bsmbx;
5191
5192         /* IF Type 0 ports get initialized now. */
5193         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5194             LPFC_SLI_INTF_IF_TYPE_0) {
5195                 rc = lpfc_pci_function_reset(phba);
5196                 if (unlikely(rc))
5197                         goto out_free_bsmbx;
5198         }
5199
5200         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5201                                                        GFP_KERNEL);
5202         if (!mboxq) {
5203                 rc = -ENOMEM;
5204                 goto out_free_bsmbx;
5205         }
5206
5207         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5208         lpfc_supported_pages(mboxq);
5209         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5210         if (!rc) {
5211                 mqe = &mboxq->u.mqe;
5212                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5213                        LPFC_MAX_SUPPORTED_PAGES);
5214                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5215                         switch (pn_page[i]) {
5216                         case LPFC_SLI4_PARAMETERS:
5217                                 phba->sli4_hba.pc_sli4_params.supported = 1;
5218                                 break;
5219                         default:
5220                                 break;
5221                         }
5222                 }
5223                 /* Read the port's SLI4 Parameters capabilities if supported. */
5224                 if (phba->sli4_hba.pc_sli4_params.supported)
5225                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
5226                 if (rc) {
5227                         mempool_free(mboxq, phba->mbox_mem_pool);
5228                         rc = -EIO;
5229                         goto out_free_bsmbx;
5230                 }
5231         }
5232         /*
5233          * Get sli4 parameters that override parameters from Port capabilities.
5234          * If this call fails, it isn't critical unless the SLI4 parameters come
5235          * back in conflict.
5236          */
5237         rc = lpfc_get_sli4_parameters(phba, mboxq);
5238         if (rc) {
5239                 if (phba->sli4_hba.extents_in_use &&
5240                     phba->sli4_hba.rpi_hdrs_in_use) {
5241                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5242                                 "2999 Unsupported SLI4 Parameters "
5243                                 "Extents and RPI headers enabled.\n");
5244                         goto out_free_bsmbx;
5245                 }
5246         }
5247         mempool_free(mboxq, phba->mbox_mem_pool);
5248
5249         /* Verify OAS is supported */
5250         lpfc_sli4_oas_verify(phba);
5251         if (phba->cfg_fof)
5252                 fof_vectors = 1;
5253
5254         /* Verify all the SLI4 queues */
5255         rc = lpfc_sli4_queue_verify(phba);
5256         if (rc)
5257                 goto out_free_bsmbx;
5258
5259         /* Create driver internal CQE event pool */
5260         rc = lpfc_sli4_cq_event_pool_create(phba);
5261         if (rc)
5262                 goto out_free_bsmbx;
5263
5264         /* Initialize sgl lists per host */
5265         lpfc_init_sgl_list(phba);
5266
5267         /* Allocate and initialize active sgl array */
5268         rc = lpfc_init_active_sgl_array(phba);
5269         if (rc) {
5270                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5271                                 "1430 Failed to initialize sgl list.\n");
5272                 goto out_destroy_cq_event_pool;
5273         }
5274         rc = lpfc_sli4_init_rpi_hdrs(phba);
5275         if (rc) {
5276                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5277                                 "1432 Failed to initialize rpi headers.\n");
5278                 goto out_free_active_sgl;
5279         }
5280
5281         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5282         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5283         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5284                                          GFP_KERNEL);
5285         if (!phba->fcf.fcf_rr_bmask) {
5286                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5287                                 "2759 Failed allocate memory for FCF round "
5288                                 "robin failover bmask\n");
5289                 rc = -ENOMEM;
5290                 goto out_remove_rpi_hdrs;
5291         }
5292
5293         phba->sli4_hba.fcp_eq_hdl =
5294                         kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5295                             (fof_vectors + phba->cfg_fcp_io_channel)),
5296                             GFP_KERNEL);
5297         if (!phba->sli4_hba.fcp_eq_hdl) {
5298                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5299                                 "2572 Failed allocate memory for "
5300                                 "fast-path per-EQ handle array\n");
5301                 rc = -ENOMEM;
5302                 goto out_free_fcf_rr_bmask;
5303         }
5304
5305         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5306                                   (fof_vectors +
5307                                    phba->cfg_fcp_io_channel)), GFP_KERNEL);
5308         if (!phba->sli4_hba.msix_entries) {
5309                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5310                                 "2573 Failed allocate memory for msi-x "
5311                                 "interrupt vector entries\n");
5312                 rc = -ENOMEM;
5313                 goto out_free_fcp_eq_hdl;
5314         }
5315
5316         phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5317                                          phba->sli4_hba.num_present_cpu),
5318                                          GFP_KERNEL);
5319         if (!phba->sli4_hba.cpu_map) {
5320                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5321                                 "3327 Failed allocate memory for msi-x "
5322                                 "interrupt vector mapping\n");
5323                 rc = -ENOMEM;
5324                 goto out_free_msix;
5325         }
5326         if (lpfc_used_cpu == NULL) {
5327                 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5328                                          GFP_KERNEL);
5329                 if (!lpfc_used_cpu) {
5330                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5331                                         "3335 Failed allocate memory for msi-x "
5332                                         "interrupt vector mapping\n");
5333                         kfree(phba->sli4_hba.cpu_map);
5334                         rc = -ENOMEM;
5335                         goto out_free_msix;
5336                 }
5337                 for (i = 0; i < lpfc_present_cpu; i++)
5338                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5339         }
5340
5341         /* Initialize io channels for round robin */
5342         cpup = phba->sli4_hba.cpu_map;
5343         rc = 0;
5344         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5345                 cpup->channel_id = rc;
5346                 rc++;
5347                 if (rc >= phba->cfg_fcp_io_channel)
5348                         rc = 0;
5349         }
5350
5351         /*
5352          * Enable sr-iov virtual functions if supported and configured
5353          * through the module parameter.
5354          */
5355         if (phba->cfg_sriov_nr_virtfn > 0) {
5356                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5357                                                  phba->cfg_sriov_nr_virtfn);
5358                 if (rc) {
5359                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5360                                         "3020 Requested number of SR-IOV "
5361                                         "virtual functions (%d) is not "
5362                                         "supported\n",
5363                                         phba->cfg_sriov_nr_virtfn);
5364                         phba->cfg_sriov_nr_virtfn = 0;
5365                 }
5366         }
5367
5368         return 0;
5369
5370 out_free_msix:
5371         kfree(phba->sli4_hba.msix_entries);
5372 out_free_fcp_eq_hdl:
5373         kfree(phba->sli4_hba.fcp_eq_hdl);
5374 out_free_fcf_rr_bmask:
5375         kfree(phba->fcf.fcf_rr_bmask);
5376 out_remove_rpi_hdrs:
5377         lpfc_sli4_remove_rpi_hdrs(phba);
5378 out_free_active_sgl:
5379         lpfc_free_active_sgl(phba);
5380 out_destroy_cq_event_pool:
5381         lpfc_sli4_cq_event_pool_destroy(phba);
5382 out_free_bsmbx:
5383         lpfc_destroy_bootstrap_mbox(phba);
5384 out_free_mem:
5385         lpfc_mem_free(phba);
5386         return rc;
5387 }
5388
5389 /**
5390  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5391  * @phba: pointer to lpfc hba data structure.
5392  *
5393  * This routine is invoked to unset the driver internal resources set up
5394  * specific for supporting the SLI-4 HBA device it attached to.
5395  **/
5396 static void
5397 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5398 {
5399         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5400
5401         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5402         kfree(phba->sli4_hba.cpu_map);
5403         phba->sli4_hba.num_present_cpu = 0;
5404         phba->sli4_hba.num_online_cpu = 0;
5405         phba->sli4_hba.curr_disp_cpu = 0;
5406
5407         /* Free memory allocated for msi-x interrupt vector entries */
5408         kfree(phba->sli4_hba.msix_entries);
5409
5410         /* Free memory allocated for fast-path work queue handles */
5411         kfree(phba->sli4_hba.fcp_eq_hdl);
5412
5413         /* Free the allocated rpi headers. */
5414         lpfc_sli4_remove_rpi_hdrs(phba);
5415         lpfc_sli4_remove_rpis(phba);
5416
5417         /* Free eligible FCF index bmask */
5418         kfree(phba->fcf.fcf_rr_bmask);
5419
5420         /* Free the ELS sgl list */
5421         lpfc_free_active_sgl(phba);
5422         lpfc_free_els_sgl_list(phba);
5423
5424         /* Free the completion queue EQ event pool */
5425         lpfc_sli4_cq_event_release_all(phba);
5426         lpfc_sli4_cq_event_pool_destroy(phba);
5427
5428         /* Release resource identifiers. */
5429         lpfc_sli4_dealloc_resource_identifiers(phba);
5430
5431         /* Free the bsmbx region. */
5432         lpfc_destroy_bootstrap_mbox(phba);
5433
5434         /* Free the SLI Layer memory with SLI4 HBAs */
5435         lpfc_mem_free_all(phba);
5436
5437         /* Free the current connect table */
5438         list_for_each_entry_safe(conn_entry, next_conn_entry,
5439                 &phba->fcf_conn_rec_list, list) {
5440                 list_del_init(&conn_entry->list);
5441                 kfree(conn_entry);
5442         }
5443
5444         return;
5445 }
5446
5447 /**
5448  * lpfc_init_api_table_setup - Set up init api function jump table
5449  * @phba: The hba struct for which this call is being executed.
5450  * @dev_grp: The HBA PCI-Device group number.
5451  *
5452  * This routine sets up the device INIT interface API function jump table
5453  * in @phba struct.
5454  *
5455  * Returns: 0 - success, -ENODEV - failure.
5456  **/
5457 int
5458 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5459 {
5460         phba->lpfc_hba_init_link = lpfc_hba_init_link;
5461         phba->lpfc_hba_down_link = lpfc_hba_down_link;
5462         phba->lpfc_selective_reset = lpfc_selective_reset;
5463         switch (dev_grp) {
5464         case LPFC_PCI_DEV_LP:
5465                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5466                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5467                 phba->lpfc_stop_port = lpfc_stop_port_s3;
5468                 break;
5469         case LPFC_PCI_DEV_OC:
5470                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5471                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5472                 phba->lpfc_stop_port = lpfc_stop_port_s4;
5473                 break;
5474         default:
5475                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5476                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
5477                                 dev_grp);
5478                 return -ENODEV;
5479                 break;
5480         }
5481         return 0;
5482 }
5483
5484 /**
5485  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5486  * @phba: pointer to lpfc hba data structure.
5487  *
5488  * This routine is invoked to set up the driver internal resources before the
5489  * device specific resource setup to support the HBA device it attached to.
5490  *
5491  * Return codes
5492  *      0 - successful
5493  *      other values - error
5494  **/
5495 static int
5496 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5497 {
5498         /*
5499          * Driver resources common to all SLI revisions
5500          */
5501         atomic_set(&phba->fast_event_count, 0);
5502         spin_lock_init(&phba->hbalock);
5503
5504         /* Initialize ndlp management spinlock */
5505         spin_lock_init(&phba->ndlp_lock);
5506
5507         INIT_LIST_HEAD(&phba->port_list);
5508         INIT_LIST_HEAD(&phba->work_list);
5509         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5510
5511         /* Initialize the wait queue head for the kernel thread */
5512         init_waitqueue_head(&phba->work_waitq);
5513
5514         /* Initialize the scsi buffer list used by driver for scsi IO */
5515         spin_lock_init(&phba->scsi_buf_list_get_lock);
5516         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5517         spin_lock_init(&phba->scsi_buf_list_put_lock);
5518         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5519
5520         /* Initialize the fabric iocb list */
5521         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5522
5523         /* Initialize list to save ELS buffers */
5524         INIT_LIST_HEAD(&phba->elsbuf);
5525
5526         /* Initialize FCF connection rec list */
5527         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5528
5529         /* Initialize OAS configuration list */
5530         spin_lock_init(&phba->devicelock);
5531         INIT_LIST_HEAD(&phba->luns);
5532
5533         return 0;
5534 }
5535
5536 /**
5537  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5538  * @phba: pointer to lpfc hba data structure.
5539  *
5540  * This routine is invoked to set up the driver internal resources after the
5541  * device specific resource setup to support the HBA device it attached to.
5542  *
5543  * Return codes
5544  *      0 - successful
5545  *      other values - error
5546  **/
5547 static int
5548 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5549 {
5550         int error;
5551
5552         /* Startup the kernel thread for this host adapter. */
5553         phba->worker_thread = kthread_run(lpfc_do_work, phba,
5554                                           "lpfc_worker_%d", phba->brd_no);
5555         if (IS_ERR(phba->worker_thread)) {
5556                 error = PTR_ERR(phba->worker_thread);
5557                 return error;
5558         }
5559
5560         return 0;
5561 }
5562
5563 /**
5564  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5565  * @phba: pointer to lpfc hba data structure.
5566  *
5567  * This routine is invoked to unset the driver internal resources set up after
5568  * the device specific resource setup for supporting the HBA device it
5569  * attached to.
5570  **/
5571 static void
5572 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5573 {
5574         /* Stop kernel worker thread */
5575         kthread_stop(phba->worker_thread);
5576 }
5577
5578 /**
5579  * lpfc_free_iocb_list - Free iocb list.
5580  * @phba: pointer to lpfc hba data structure.
5581  *
5582  * This routine is invoked to free the driver's IOCB list and memory.
5583  **/
5584 static void
5585 lpfc_free_iocb_list(struct lpfc_hba *phba)
5586 {
5587         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5588
5589         spin_lock_irq(&phba->hbalock);
5590         list_for_each_entry_safe(iocbq_entry, iocbq_next,
5591                                  &phba->lpfc_iocb_list, list) {
5592                 list_del(&iocbq_entry->list);
5593                 kfree(iocbq_entry);
5594                 phba->total_iocbq_bufs--;
5595         }
5596         spin_unlock_irq(&phba->hbalock);
5597
5598         return;
5599 }
5600
5601 /**
5602  * lpfc_init_iocb_list - Allocate and initialize iocb list.
5603  * @phba: pointer to lpfc hba data structure.
5604  *
5605  * This routine is invoked to allocate and initizlize the driver's IOCB
5606  * list and set up the IOCB tag array accordingly.
5607  *
5608  * Return codes
5609  *      0 - successful
5610  *      other values - error
5611  **/
5612 static int
5613 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5614 {
5615         struct lpfc_iocbq *iocbq_entry = NULL;
5616         uint16_t iotag;
5617         int i;
5618
5619         /* Initialize and populate the iocb list per host.  */
5620         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5621         for (i = 0; i < iocb_count; i++) {
5622                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5623                 if (iocbq_entry == NULL) {
5624                         printk(KERN_ERR "%s: only allocated %d iocbs of "
5625                                 "expected %d count. Unloading driver.\n",
5626                                 __func__, i, LPFC_IOCB_LIST_CNT);
5627                         goto out_free_iocbq;
5628                 }
5629
5630                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5631                 if (iotag == 0) {
5632                         kfree(iocbq_entry);
5633                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
5634                                 "Unloading driver.\n", __func__);
5635                         goto out_free_iocbq;
5636                 }
5637                 iocbq_entry->sli4_lxritag = NO_XRI;
5638                 iocbq_entry->sli4_xritag = NO_XRI;
5639
5640                 spin_lock_irq(&phba->hbalock);
5641                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5642                 phba->total_iocbq_bufs++;
5643                 spin_unlock_irq(&phba->hbalock);
5644         }
5645
5646         return 0;
5647
5648 out_free_iocbq:
5649         lpfc_free_iocb_list(phba);
5650
5651         return -ENOMEM;
5652 }
5653
5654 /**
5655  * lpfc_free_sgl_list - Free a given sgl list.
5656  * @phba: pointer to lpfc hba data structure.
5657  * @sglq_list: pointer to the head of sgl list.
5658  *
5659  * This routine is invoked to free a give sgl list and memory.
5660  **/
5661 void
5662 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5663 {
5664         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5665
5666         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5667                 list_del(&sglq_entry->list);
5668                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5669                 kfree(sglq_entry);
5670         }
5671 }
5672
5673 /**
5674  * lpfc_free_els_sgl_list - Free els sgl list.
5675  * @phba: pointer to lpfc hba data structure.
5676  *
5677  * This routine is invoked to free the driver's els sgl list and memory.
5678  **/
5679 static void
5680 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5681 {
5682         LIST_HEAD(sglq_list);
5683
5684         /* Retrieve all els sgls from driver list */
5685         spin_lock_irq(&phba->hbalock);
5686         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5687         spin_unlock_irq(&phba->hbalock);
5688
5689         /* Now free the sgl list */
5690         lpfc_free_sgl_list(phba, &sglq_list);
5691 }
5692
5693 /**
5694  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5695  * @phba: pointer to lpfc hba data structure.
5696  *
5697  * This routine is invoked to allocate the driver's active sgl memory.
5698  * This array will hold the sglq_entry's for active IOs.
5699  **/
5700 static int
5701 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5702 {
5703         int size;
5704         size = sizeof(struct lpfc_sglq *);
5705         size *= phba->sli4_hba.max_cfg_param.max_xri;
5706
5707         phba->sli4_hba.lpfc_sglq_active_list =
5708                 kzalloc(size, GFP_KERNEL);
5709         if (!phba->sli4_hba.lpfc_sglq_active_list)
5710                 return -ENOMEM;
5711         return 0;
5712 }
5713
5714 /**
5715  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5716  * @phba: pointer to lpfc hba data structure.
5717  *
5718  * This routine is invoked to walk through the array of active sglq entries
5719  * and free all of the resources.
5720  * This is just a place holder for now.
5721  **/
5722 static void
5723 lpfc_free_active_sgl(struct lpfc_hba *phba)
5724 {
5725         kfree(phba->sli4_hba.lpfc_sglq_active_list);
5726 }
5727
5728 /**
5729  * lpfc_init_sgl_list - Allocate and initialize sgl list.
5730  * @phba: pointer to lpfc hba data structure.
5731  *
5732  * This routine is invoked to allocate and initizlize the driver's sgl
5733  * list and set up the sgl xritag tag array accordingly.
5734  *
5735  **/
5736 static void
5737 lpfc_init_sgl_list(struct lpfc_hba *phba)
5738 {
5739         /* Initialize and populate the sglq list per host/VF. */
5740         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5741         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5742
5743         /* els xri-sgl book keeping */
5744         phba->sli4_hba.els_xri_cnt = 0;
5745
5746         /* scsi xri-buffer book keeping */
5747         phba->sli4_hba.scsi_xri_cnt = 0;
5748 }
5749
5750 /**
5751  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5752  * @phba: pointer to lpfc hba data structure.
5753  *
5754  * This routine is invoked to post rpi header templates to the
5755  * port for those SLI4 ports that do not support extents.  This routine
5756  * posts a PAGE_SIZE memory region to the port to hold up to
5757  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
5758  * and should be called only when interrupts are disabled.
5759  *
5760  * Return codes
5761  *      0 - successful
5762  *      -ERROR - otherwise.
5763  **/
5764 int
5765 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5766 {
5767         int rc = 0;
5768         struct lpfc_rpi_hdr *rpi_hdr;
5769
5770         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5771         if (!phba->sli4_hba.rpi_hdrs_in_use)
5772                 return rc;
5773         if (phba->sli4_hba.extents_in_use)
5774                 return -EIO;
5775
5776         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5777         if (!rpi_hdr) {
5778                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5779                                 "0391 Error during rpi post operation\n");
5780                 lpfc_sli4_remove_rpis(phba);
5781                 rc = -ENODEV;
5782         }
5783
5784         return rc;
5785 }
5786
5787 /**
5788  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5789  * @phba: pointer to lpfc hba data structure.
5790  *
5791  * This routine is invoked to allocate a single 4KB memory region to
5792  * support rpis and stores them in the phba.  This single region
5793  * provides support for up to 64 rpis.  The region is used globally
5794  * by the device.
5795  *
5796  * Returns:
5797  *   A valid rpi hdr on success.
5798  *   A NULL pointer on any failure.
5799  **/
5800 struct lpfc_rpi_hdr *
5801 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5802 {
5803         uint16_t rpi_limit, curr_rpi_range;
5804         struct lpfc_dmabuf *dmabuf;
5805         struct lpfc_rpi_hdr *rpi_hdr;
5806         uint32_t rpi_count;
5807
5808         /*
5809          * If the SLI4 port supports extents, posting the rpi header isn't
5810          * required.  Set the expected maximum count and let the actual value
5811          * get set when extents are fully allocated.
5812          */
5813         if (!phba->sli4_hba.rpi_hdrs_in_use)
5814                 return NULL;
5815         if (phba->sli4_hba.extents_in_use)
5816                 return NULL;
5817
5818         /* The limit on the logical index is just the max_rpi count. */
5819         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5820         phba->sli4_hba.max_cfg_param.max_rpi - 1;
5821
5822         spin_lock_irq(&phba->hbalock);
5823         /*
5824          * Establish the starting RPI in this header block.  The starting
5825          * rpi is normalized to a zero base because the physical rpi is
5826          * port based.
5827          */
5828         curr_rpi_range = phba->sli4_hba.next_rpi;
5829         spin_unlock_irq(&phba->hbalock);
5830
5831         /*
5832          * The port has a limited number of rpis. The increment here
5833          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5834          * and to allow the full max_rpi range per port.
5835          */
5836         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5837                 rpi_count = rpi_limit - curr_rpi_range;
5838         else
5839                 rpi_count = LPFC_RPI_HDR_COUNT;
5840
5841         if (!rpi_count)
5842                 return NULL;
5843         /*
5844          * First allocate the protocol header region for the port.  The
5845          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5846          */
5847         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5848         if (!dmabuf)
5849                 return NULL;
5850
5851         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5852                                           LPFC_HDR_TEMPLATE_SIZE,
5853                                           &dmabuf->phys,
5854                                           GFP_KERNEL);
5855         if (!dmabuf->virt) {
5856                 rpi_hdr = NULL;
5857                 goto err_free_dmabuf;
5858         }
5859
5860         memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5861         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5862                 rpi_hdr = NULL;
5863                 goto err_free_coherent;
5864         }
5865
5866         /* Save the rpi header data for cleanup later. */
5867         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5868         if (!rpi_hdr)
5869                 goto err_free_coherent;
5870
5871         rpi_hdr->dmabuf = dmabuf;
5872         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5873         rpi_hdr->page_count = 1;
5874         spin_lock_irq(&phba->hbalock);
5875
5876         /* The rpi_hdr stores the logical index only. */
5877         rpi_hdr->start_rpi = curr_rpi_range;
5878         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5879
5880         /*
5881          * The next_rpi stores the next logical module-64 rpi value used
5882          * to post physical rpis in subsequent rpi postings.
5883          */
5884         phba->sli4_hba.next_rpi += rpi_count;
5885         spin_unlock_irq(&phba->hbalock);
5886         return rpi_hdr;
5887
5888  err_free_coherent:
5889         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5890                           dmabuf->virt, dmabuf->phys);
5891  err_free_dmabuf:
5892         kfree(dmabuf);
5893         return NULL;
5894 }
5895
5896 /**
5897  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5898  * @phba: pointer to lpfc hba data structure.
5899  *
5900  * This routine is invoked to remove all memory resources allocated
5901  * to support rpis for SLI4 ports not supporting extents. This routine
5902  * presumes the caller has released all rpis consumed by fabric or port
5903  * logins and is prepared to have the header pages removed.
5904  **/
5905 void
5906 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5907 {
5908         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5909
5910         if (!phba->sli4_hba.rpi_hdrs_in_use)
5911                 goto exit;
5912
5913         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5914                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5915                 list_del(&rpi_hdr->list);
5916                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5917                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5918                 kfree(rpi_hdr->dmabuf);
5919                 kfree(rpi_hdr);
5920         }
5921  exit:
5922         /* There are no rpis available to the port now. */
5923         phba->sli4_hba.next_rpi = 0;
5924 }
5925
5926 /**
5927  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5928  * @pdev: pointer to pci device data structure.
5929  *
5930  * This routine is invoked to allocate the driver hba data structure for an
5931  * HBA device. If the allocation is successful, the phba reference to the
5932  * PCI device data structure is set.
5933  *
5934  * Return codes
5935  *      pointer to @phba - successful
5936  *      NULL - error
5937  **/
5938 static struct lpfc_hba *
5939 lpfc_hba_alloc(struct pci_dev *pdev)
5940 {
5941         struct lpfc_hba *phba;
5942
5943         /* Allocate memory for HBA structure */
5944         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5945         if (!phba) {
5946                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5947                 return NULL;
5948         }
5949
5950         /* Set reference to PCI device in HBA structure */
5951         phba->pcidev = pdev;
5952
5953         /* Assign an unused board number */
5954         phba->brd_no = lpfc_get_instance();
5955         if (phba->brd_no < 0) {
5956                 kfree(phba);
5957                 return NULL;
5958         }
5959
5960         spin_lock_init(&phba->ct_ev_lock);
5961         INIT_LIST_HEAD(&phba->ct_ev_waiters);
5962
5963         return phba;
5964 }
5965
5966 /**
5967  * lpfc_hba_free - Free driver hba data structure with a device.
5968  * @phba: pointer to lpfc hba data structure.
5969  *
5970  * This routine is invoked to free the driver hba data structure with an
5971  * HBA device.
5972  **/
5973 static void
5974 lpfc_hba_free(struct lpfc_hba *phba)
5975 {
5976         /* Release the driver assigned board number */
5977         idr_remove(&lpfc_hba_index, phba->brd_no);
5978
5979         /* Free memory allocated with sli rings */
5980         kfree(phba->sli.ring);
5981         phba->sli.ring = NULL;
5982
5983         kfree(phba);
5984         return;
5985 }
5986
5987 /**
5988  * lpfc_create_shost - Create hba physical port with associated scsi host.
5989  * @phba: pointer to lpfc hba data structure.
5990  *
5991  * This routine is invoked to create HBA physical port and associate a SCSI
5992  * host with it.
5993  *
5994  * Return codes
5995  *      0 - successful
5996  *      other values - error
5997  **/
5998 static int
5999 lpfc_create_shost(struct lpfc_hba *phba)
6000 {
6001         struct lpfc_vport *vport;
6002         struct Scsi_Host  *shost;
6003
6004         /* Initialize HBA FC structure */
6005         phba->fc_edtov = FF_DEF_EDTOV;
6006         phba->fc_ratov = FF_DEF_RATOV;
6007         phba->fc_altov = FF_DEF_ALTOV;
6008         phba->fc_arbtov = FF_DEF_ARBTOV;
6009
6010         atomic_set(&phba->sdev_cnt, 0);
6011         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6012         if (!vport)
6013                 return -ENODEV;
6014
6015         shost = lpfc_shost_from_vport(vport);
6016         phba->pport = vport;
6017         lpfc_debugfs_initialize(vport);
6018         /* Put reference to SCSI host to driver's device private data */
6019         pci_set_drvdata(phba->pcidev, shost);
6020
6021         return 0;
6022 }
6023
6024 /**
6025  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6026  * @phba: pointer to lpfc hba data structure.
6027  *
6028  * This routine is invoked to destroy HBA physical port and the associated
6029  * SCSI host.
6030  **/
6031 static void
6032 lpfc_destroy_shost(struct lpfc_hba *phba)
6033 {
6034         struct lpfc_vport *vport = phba->pport;
6035
6036         /* Destroy physical port that associated with the SCSI host */
6037         destroy_port(vport);
6038
6039         return;
6040 }
6041
6042 /**
6043  * lpfc_setup_bg - Setup Block guard structures and debug areas.
6044  * @phba: pointer to lpfc hba data structure.
6045  * @shost: the shost to be used to detect Block guard settings.
6046  *
6047  * This routine sets up the local Block guard protocol settings for @shost.
6048  * This routine also allocates memory for debugging bg buffers.
6049  **/
6050 static void
6051 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6052 {
6053         uint32_t old_mask;
6054         uint32_t old_guard;
6055
6056         int pagecnt = 10;
6057         if (lpfc_prot_mask && lpfc_prot_guard) {
6058                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6059                                 "1478 Registering BlockGuard with the "
6060                                 "SCSI layer\n");
6061
6062                 old_mask = lpfc_prot_mask;
6063                 old_guard = lpfc_prot_guard;
6064
6065                 /* Only allow supported values */
6066                 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6067                         SHOST_DIX_TYPE0_PROTECTION |
6068                         SHOST_DIX_TYPE1_PROTECTION);
6069                 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
6070
6071                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6072                 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6073                         lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6074
6075                 if (lpfc_prot_mask && lpfc_prot_guard) {
6076                         if ((old_mask != lpfc_prot_mask) ||
6077                                 (old_guard != lpfc_prot_guard))
6078                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6079                                         "1475 Registering BlockGuard with the "
6080                                         "SCSI layer: mask %d  guard %d\n",
6081                                         lpfc_prot_mask, lpfc_prot_guard);
6082
6083                         scsi_host_set_prot(shost, lpfc_prot_mask);
6084                         scsi_host_set_guard(shost, lpfc_prot_guard);
6085                 } else
6086                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6087                                 "1479 Not Registering BlockGuard with the SCSI "
6088                                 "layer, Bad protection parameters: %d %d\n",
6089                                 old_mask, old_guard);
6090         }
6091
6092         if (!_dump_buf_data) {
6093                 while (pagecnt) {
6094                         spin_lock_init(&_dump_buf_lock);
6095                         _dump_buf_data =
6096                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6097                         if (_dump_buf_data) {
6098                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6099                                         "9043 BLKGRD: allocated %d pages for "
6100                                        "_dump_buf_data at 0x%p\n",
6101                                        (1 << pagecnt), _dump_buf_data);
6102                                 _dump_buf_data_order = pagecnt;
6103                                 memset(_dump_buf_data, 0,
6104                                        ((1 << PAGE_SHIFT) << pagecnt));
6105                                 break;
6106                         } else
6107                                 --pagecnt;
6108                 }
6109                 if (!_dump_buf_data_order)
6110                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6111                                 "9044 BLKGRD: ERROR unable to allocate "
6112                                "memory for hexdump\n");
6113         } else
6114                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6115                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6116                        "\n", _dump_buf_data);
6117         if (!_dump_buf_dif) {
6118                 while (pagecnt) {
6119                         _dump_buf_dif =
6120                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6121                         if (_dump_buf_dif) {
6122                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6123                                         "9046 BLKGRD: allocated %d pages for "
6124                                        "_dump_buf_dif at 0x%p\n",
6125                                        (1 << pagecnt), _dump_buf_dif);
6126                                 _dump_buf_dif_order = pagecnt;
6127                                 memset(_dump_buf_dif, 0,
6128                                        ((1 << PAGE_SHIFT) << pagecnt));
6129                                 break;
6130                         } else
6131                                 --pagecnt;
6132                 }
6133                 if (!_dump_buf_dif_order)
6134                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6135                         "9047 BLKGRD: ERROR unable to allocate "
6136                                "memory for hexdump\n");
6137         } else
6138                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6139                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6140                        _dump_buf_dif);
6141 }
6142
6143 /**
6144  * lpfc_post_init_setup - Perform necessary device post initialization setup.
6145  * @phba: pointer to lpfc hba data structure.
6146  *
6147  * This routine is invoked to perform all the necessary post initialization
6148  * setup for the device.
6149  **/
6150 static void
6151 lpfc_post_init_setup(struct lpfc_hba *phba)
6152 {
6153         struct Scsi_Host  *shost;
6154         struct lpfc_adapter_event_header adapter_event;
6155
6156         /* Get the default values for Model Name and Description */
6157         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6158
6159         /*
6160          * hba setup may have changed the hba_queue_depth so we need to
6161          * adjust the value of can_queue.
6162          */
6163         shost = pci_get_drvdata(phba->pcidev);
6164         shost->can_queue = phba->cfg_hba_queue_depth - 10;
6165         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6166                 lpfc_setup_bg(phba, shost);
6167
6168         lpfc_host_attrib_init(shost);
6169
6170         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6171                 spin_lock_irq(shost->host_lock);
6172                 lpfc_poll_start_timer(phba);
6173                 spin_unlock_irq(shost->host_lock);
6174         }
6175
6176         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6177                         "0428 Perform SCSI scan\n");
6178         /* Send board arrival event to upper layer */
6179         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6180         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6181         fc_host_post_vendor_event(shost, fc_get_event_number(),
6182                                   sizeof(adapter_event),
6183                                   (char *) &adapter_event,
6184                                   LPFC_NL_VENDOR_ID);
6185         return;
6186 }
6187
6188 /**
6189  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6190  * @phba: pointer to lpfc hba data structure.
6191  *
6192  * This routine is invoked to set up the PCI device memory space for device
6193  * with SLI-3 interface spec.
6194  *
6195  * Return codes
6196  *      0 - successful
6197  *      other values - error
6198  **/
6199 static int
6200 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6201 {
6202         struct pci_dev *pdev;
6203         unsigned long bar0map_len, bar2map_len;
6204         int i, hbq_count;
6205         void *ptr;
6206         int error = -ENODEV;
6207
6208         /* Obtain PCI device reference */
6209         if (!phba->pcidev)
6210                 return error;
6211         else
6212                 pdev = phba->pcidev;
6213
6214         /* Set the device DMA mask size */
6215         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6216          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6217                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6218                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6219                         return error;
6220                 }
6221         }
6222
6223         /* Get the bus address of Bar0 and Bar2 and the number of bytes
6224          * required by each mapping.
6225          */
6226         phba->pci_bar0_map = pci_resource_start(pdev, 0);
6227         bar0map_len = pci_resource_len(pdev, 0);
6228
6229         phba->pci_bar2_map = pci_resource_start(pdev, 2);
6230         bar2map_len = pci_resource_len(pdev, 2);
6231
6232         /* Map HBA SLIM to a kernel virtual address. */
6233         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6234         if (!phba->slim_memmap_p) {
6235                 dev_printk(KERN_ERR, &pdev->dev,
6236                            "ioremap failed for SLIM memory.\n");
6237                 goto out;
6238         }
6239
6240         /* Map HBA Control Registers to a kernel virtual address. */
6241         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6242         if (!phba->ctrl_regs_memmap_p) {
6243                 dev_printk(KERN_ERR, &pdev->dev,
6244                            "ioremap failed for HBA control registers.\n");
6245                 goto out_iounmap_slim;
6246         }
6247
6248         /* Allocate memory for SLI-2 structures */
6249         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
6250                                                SLI2_SLIM_SIZE,
6251                                                &phba->slim2p.phys,
6252                                                GFP_KERNEL);
6253         if (!phba->slim2p.virt)
6254                 goto out_iounmap;
6255
6256         memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
6257         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6258         phba->mbox_ext = (phba->slim2p.virt +
6259                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6260         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6261         phba->IOCBs = (phba->slim2p.virt +
6262                        offsetof(struct lpfc_sli2_slim, IOCBs));
6263
6264         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6265                                                  lpfc_sli_hbq_size(),
6266                                                  &phba->hbqslimp.phys,
6267                                                  GFP_KERNEL);
6268         if (!phba->hbqslimp.virt)
6269                 goto out_free_slim;
6270
6271         hbq_count = lpfc_sli_hbq_count();
6272         ptr = phba->hbqslimp.virt;
6273         for (i = 0; i < hbq_count; ++i) {
6274                 phba->hbqs[i].hbq_virt = ptr;
6275                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6276                 ptr += (lpfc_hbq_defs[i]->entry_count *
6277                         sizeof(struct lpfc_hbq_entry));
6278         }
6279         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6280         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6281
6282         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6283
6284         INIT_LIST_HEAD(&phba->rb_pend_list);
6285
6286         phba->MBslimaddr = phba->slim_memmap_p;
6287         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6288         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6289         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6290         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6291
6292         return 0;
6293
6294 out_free_slim:
6295         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6296                           phba->slim2p.virt, phba->slim2p.phys);
6297 out_iounmap:
6298         iounmap(phba->ctrl_regs_memmap_p);
6299 out_iounmap_slim:
6300         iounmap(phba->slim_memmap_p);
6301 out:
6302         return error;
6303 }
6304
6305 /**
6306  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6307  * @phba: pointer to lpfc hba data structure.
6308  *
6309  * This routine is invoked to unset the PCI device memory space for device
6310  * with SLI-3 interface spec.
6311  **/
6312 static void
6313 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6314 {
6315         struct pci_dev *pdev;
6316
6317         /* Obtain PCI device reference */
6318         if (!phba->pcidev)
6319                 return;
6320         else
6321                 pdev = phba->pcidev;
6322
6323         /* Free coherent DMA memory allocated */
6324         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6325                           phba->hbqslimp.virt, phba->hbqslimp.phys);
6326         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6327                           phba->slim2p.virt, phba->slim2p.phys);
6328
6329         /* I/O memory unmap */
6330         iounmap(phba->ctrl_regs_memmap_p);
6331         iounmap(phba->slim_memmap_p);
6332
6333         return;
6334 }
6335
6336 /**
6337  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6338  * @phba: pointer to lpfc hba data structure.
6339  *
6340  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6341  * done and check status.
6342  *
6343  * Return 0 if successful, otherwise -ENODEV.
6344  **/
6345 int
6346 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6347 {
6348         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6349         struct lpfc_register reg_data;
6350         int i, port_error = 0;
6351         uint32_t if_type;
6352
6353         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6354         memset(&reg_data, 0, sizeof(reg_data));
6355         if (!phba->sli4_hba.PSMPHRregaddr)
6356                 return -ENODEV;
6357
6358         /* Wait up to 30 seconds for the SLI Port POST done and ready */
6359         for (i = 0; i < 3000; i++) {
6360                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6361                         &portsmphr_reg.word0) ||
6362                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6363                         /* Port has a fatal POST error, break out */
6364                         port_error = -ENODEV;
6365                         break;
6366                 }
6367                 if (LPFC_POST_STAGE_PORT_READY ==
6368                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6369                         break;
6370                 msleep(10);
6371         }
6372
6373         /*
6374          * If there was a port error during POST, then don't proceed with
6375          * other register reads as the data may not be valid.  Just exit.
6376          */
6377         if (port_error) {
6378                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6379                         "1408 Port Failed POST - portsmphr=0x%x, "
6380                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6381                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6382                         portsmphr_reg.word0,
6383                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6384                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6385                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6386                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6387                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6388                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6389                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6390                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6391         } else {
6392                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6393                                 "2534 Device Info: SLIFamily=0x%x, "
6394                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6395                                 "SLIHint_2=0x%x, FT=0x%x\n",
6396                                 bf_get(lpfc_sli_intf_sli_family,
6397                                        &phba->sli4_hba.sli_intf),
6398                                 bf_get(lpfc_sli_intf_slirev,
6399                                        &phba->sli4_hba.sli_intf),
6400                                 bf_get(lpfc_sli_intf_if_type,
6401                                        &phba->sli4_hba.sli_intf),
6402                                 bf_get(lpfc_sli_intf_sli_hint1,
6403                                        &phba->sli4_hba.sli_intf),
6404                                 bf_get(lpfc_sli_intf_sli_hint2,
6405                                        &phba->sli4_hba.sli_intf),
6406                                 bf_get(lpfc_sli_intf_func_type,
6407                                        &phba->sli4_hba.sli_intf));
6408                 /*
6409                  * Check for other Port errors during the initialization
6410                  * process.  Fail the load if the port did not come up
6411                  * correctly.
6412                  */
6413                 if_type = bf_get(lpfc_sli_intf_if_type,
6414                                  &phba->sli4_hba.sli_intf);
6415                 switch (if_type) {
6416                 case LPFC_SLI_INTF_IF_TYPE_0:
6417                         phba->sli4_hba.ue_mask_lo =
6418                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6419                         phba->sli4_hba.ue_mask_hi =
6420                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6421                         uerrlo_reg.word0 =
6422                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6423                         uerrhi_reg.word0 =
6424                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6425                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6426                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6427                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6428                                                 "1422 Unrecoverable Error "
6429                                                 "Detected during POST "
6430                                                 "uerr_lo_reg=0x%x, "
6431                                                 "uerr_hi_reg=0x%x, "
6432                                                 "ue_mask_lo_reg=0x%x, "
6433                                                 "ue_mask_hi_reg=0x%x\n",
6434                                                 uerrlo_reg.word0,
6435                                                 uerrhi_reg.word0,
6436                                                 phba->sli4_hba.ue_mask_lo,
6437                                                 phba->sli4_hba.ue_mask_hi);
6438                                 port_error = -ENODEV;
6439                         }
6440                         break;
6441                 case LPFC_SLI_INTF_IF_TYPE_2:
6442                         /* Final checks.  The port status should be clean. */
6443                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6444                                 &reg_data.word0) ||
6445                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6446                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
6447                                 phba->work_status[0] =
6448                                         readl(phba->sli4_hba.u.if_type2.
6449                                               ERR1regaddr);
6450                                 phba->work_status[1] =
6451                                         readl(phba->sli4_hba.u.if_type2.
6452                                               ERR2regaddr);
6453                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6454                                         "2888 Unrecoverable port error "
6455                                         "following POST: port status reg "
6456                                         "0x%x, port_smphr reg 0x%x, "
6457                                         "error 1=0x%x, error 2=0x%x\n",
6458                                         reg_data.word0,
6459                                         portsmphr_reg.word0,
6460                                         phba->work_status[0],
6461                                         phba->work_status[1]);
6462                                 port_error = -ENODEV;
6463                         }
6464                         break;
6465                 case LPFC_SLI_INTF_IF_TYPE_1:
6466                 default:
6467                         break;
6468                 }
6469         }
6470         return port_error;
6471 }
6472
6473 /**
6474  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6475  * @phba: pointer to lpfc hba data structure.
6476  * @if_type:  The SLI4 interface type getting configured.
6477  *
6478  * This routine is invoked to set up SLI4 BAR0 PCI config space register
6479  * memory map.
6480  **/
6481 static void
6482 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6483 {
6484         switch (if_type) {
6485         case LPFC_SLI_INTF_IF_TYPE_0:
6486                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6487                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6488                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6489                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6490                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6491                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6492                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6493                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6494                 phba->sli4_hba.SLIINTFregaddr =
6495                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6496                 break;
6497         case LPFC_SLI_INTF_IF_TYPE_2:
6498                 phba->sli4_hba.u.if_type2.ERR1regaddr =
6499                         phba->sli4_hba.conf_regs_memmap_p +
6500                                                 LPFC_CTL_PORT_ER1_OFFSET;
6501                 phba->sli4_hba.u.if_type2.ERR2regaddr =
6502                         phba->sli4_hba.conf_regs_memmap_p +
6503                                                 LPFC_CTL_PORT_ER2_OFFSET;
6504                 phba->sli4_hba.u.if_type2.CTRLregaddr =
6505                         phba->sli4_hba.conf_regs_memmap_p +
6506                                                 LPFC_CTL_PORT_CTL_OFFSET;
6507                 phba->sli4_hba.u.if_type2.STATUSregaddr =
6508                         phba->sli4_hba.conf_regs_memmap_p +
6509                                                 LPFC_CTL_PORT_STA_OFFSET;
6510                 phba->sli4_hba.SLIINTFregaddr =
6511                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6512                 phba->sli4_hba.PSMPHRregaddr =
6513                         phba->sli4_hba.conf_regs_memmap_p +
6514                                                 LPFC_CTL_PORT_SEM_OFFSET;
6515                 phba->sli4_hba.RQDBregaddr =
6516                         phba->sli4_hba.conf_regs_memmap_p +
6517                                                 LPFC_ULP0_RQ_DOORBELL;
6518                 phba->sli4_hba.WQDBregaddr =
6519                         phba->sli4_hba.conf_regs_memmap_p +
6520                                                 LPFC_ULP0_WQ_DOORBELL;
6521                 phba->sli4_hba.EQCQDBregaddr =
6522                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6523                 phba->sli4_hba.MQDBregaddr =
6524                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6525                 phba->sli4_hba.BMBXregaddr =
6526                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6527                 break;
6528         case LPFC_SLI_INTF_IF_TYPE_1:
6529         default:
6530                 dev_printk(KERN_ERR, &phba->pcidev->dev,
6531                            "FATAL - unsupported SLI4 interface type - %d\n",
6532                            if_type);
6533                 break;
6534         }
6535 }
6536
6537 /**
6538  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6539  * @phba: pointer to lpfc hba data structure.
6540  *
6541  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6542  * memory map.
6543  **/
6544 static void
6545 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6546 {
6547         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6548                 LPFC_SLIPORT_IF0_SMPHR;
6549         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6550                 LPFC_HST_ISR0;
6551         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6552                 LPFC_HST_IMR0;
6553         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6554                 LPFC_HST_ISCR0;
6555 }
6556
6557 /**
6558  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6559  * @phba: pointer to lpfc hba data structure.
6560  * @vf: virtual function number
6561  *
6562  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6563  * based on the given viftual function number, @vf.
6564  *
6565  * Return 0 if successful, otherwise -ENODEV.
6566  **/
6567 static int
6568 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6569 {
6570         if (vf > LPFC_VIR_FUNC_MAX)
6571                 return -ENODEV;
6572
6573         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6574                                 vf * LPFC_VFR_PAGE_SIZE +
6575                                         LPFC_ULP0_RQ_DOORBELL);
6576         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6577                                 vf * LPFC_VFR_PAGE_SIZE +
6578                                         LPFC_ULP0_WQ_DOORBELL);
6579         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6580                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6581         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6582                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6583         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6584                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6585         return 0;
6586 }
6587
6588 /**
6589  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6590  * @phba: pointer to lpfc hba data structure.
6591  *
6592  * This routine is invoked to create the bootstrap mailbox
6593  * region consistent with the SLI-4 interface spec.  This
6594  * routine allocates all memory necessary to communicate
6595  * mailbox commands to the port and sets up all alignment
6596  * needs.  No locks are expected to be held when calling
6597  * this routine.
6598  *
6599  * Return codes
6600  *      0 - successful
6601  *      -ENOMEM - could not allocated memory.
6602  **/
6603 static int
6604 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6605 {
6606         uint32_t bmbx_size;
6607         struct lpfc_dmabuf *dmabuf;
6608         struct dma_address *dma_address;
6609         uint32_t pa_addr;
6610         uint64_t phys_addr;
6611
6612         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6613         if (!dmabuf)
6614                 return -ENOMEM;
6615
6616         /*
6617          * The bootstrap mailbox region is comprised of 2 parts
6618          * plus an alignment restriction of 16 bytes.
6619          */
6620         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6621         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6622                                           bmbx_size,
6623                                           &dmabuf->phys,
6624                                           GFP_KERNEL);
6625         if (!dmabuf->virt) {
6626                 kfree(dmabuf);
6627                 return -ENOMEM;
6628         }
6629         memset(dmabuf->virt, 0, bmbx_size);
6630
6631         /*
6632          * Initialize the bootstrap mailbox pointers now so that the register
6633          * operations are simple later.  The mailbox dma address is required
6634          * to be 16-byte aligned.  Also align the virtual memory as each
6635          * maibox is copied into the bmbx mailbox region before issuing the
6636          * command to the port.
6637          */
6638         phba->sli4_hba.bmbx.dmabuf = dmabuf;
6639         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6640
6641         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6642                                               LPFC_ALIGN_16_BYTE);
6643         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6644                                               LPFC_ALIGN_16_BYTE);
6645
6646         /*
6647          * Set the high and low physical addresses now.  The SLI4 alignment
6648          * requirement is 16 bytes and the mailbox is posted to the port
6649          * as two 30-bit addresses.  The other data is a bit marking whether
6650          * the 30-bit address is the high or low address.
6651          * Upcast bmbx aphys to 64bits so shift instruction compiles
6652          * clean on 32 bit machines.
6653          */
6654         dma_address = &phba->sli4_hba.bmbx.dma_address;
6655         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6656         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6657         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6658                                            LPFC_BMBX_BIT1_ADDR_HI);
6659
6660         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6661         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6662                                            LPFC_BMBX_BIT1_ADDR_LO);
6663         return 0;
6664 }
6665
6666 /**
6667  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6668  * @phba: pointer to lpfc hba data structure.
6669  *
6670  * This routine is invoked to teardown the bootstrap mailbox
6671  * region and release all host resources. This routine requires
6672  * the caller to ensure all mailbox commands recovered, no
6673  * additional mailbox comands are sent, and interrupts are disabled
6674  * before calling this routine.
6675  *
6676  **/
6677 static void
6678 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6679 {
6680         dma_free_coherent(&phba->pcidev->dev,
6681                           phba->sli4_hba.bmbx.bmbx_size,
6682                           phba->sli4_hba.bmbx.dmabuf->virt,
6683                           phba->sli4_hba.bmbx.dmabuf->phys);
6684
6685         kfree(phba->sli4_hba.bmbx.dmabuf);
6686         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6687 }
6688
6689 /**
6690  * lpfc_sli4_read_config - Get the config parameters.
6691  * @phba: pointer to lpfc hba data structure.
6692  *
6693  * This routine is invoked to read the configuration parameters from the HBA.
6694  * The configuration parameters are used to set the base and maximum values
6695  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6696  * allocation for the port.
6697  *
6698  * Return codes
6699  *      0 - successful
6700  *      -ENOMEM - No available memory
6701  *      -EIO - The mailbox failed to complete successfully.
6702  **/
6703 int
6704 lpfc_sli4_read_config(struct lpfc_hba *phba)
6705 {
6706         LPFC_MBOXQ_t *pmb;
6707         struct lpfc_mbx_read_config *rd_config;
6708         union  lpfc_sli4_cfg_shdr *shdr;
6709         uint32_t shdr_status, shdr_add_status;
6710         struct lpfc_mbx_get_func_cfg *get_func_cfg;
6711         struct lpfc_rsrc_desc_fcfcoe *desc;
6712         char *pdesc_0;
6713         uint32_t desc_count;
6714         int length, i, rc = 0, rc2;
6715
6716         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6717         if (!pmb) {
6718                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6719                                 "2011 Unable to allocate memory for issuing "
6720                                 "SLI_CONFIG_SPECIAL mailbox command\n");
6721                 return -ENOMEM;
6722         }
6723
6724         lpfc_read_config(phba, pmb);
6725
6726         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6727         if (rc != MBX_SUCCESS) {
6728                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6729                         "2012 Mailbox failed , mbxCmd x%x "
6730                         "READ_CONFIG, mbxStatus x%x\n",
6731                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
6732                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
6733                 rc = -EIO;
6734         } else {
6735                 rd_config = &pmb->u.mqe.un.rd_config;
6736                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6737                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6738                         phba->sli4_hba.lnk_info.lnk_tp =
6739                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6740                         phba->sli4_hba.lnk_info.lnk_no =
6741                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6742                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6743                                         "3081 lnk_type:%d, lnk_numb:%d\n",
6744                                         phba->sli4_hba.lnk_info.lnk_tp,
6745                                         phba->sli4_hba.lnk_info.lnk_no);
6746                 } else
6747                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6748                                         "3082 Mailbox (x%x) returned ldv:x0\n",
6749                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
6750                 phba->sli4_hba.extents_in_use =
6751                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6752                 phba->sli4_hba.max_cfg_param.max_xri =
6753                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6754                 phba->sli4_hba.max_cfg_param.xri_base =
6755                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6756                 phba->sli4_hba.max_cfg_param.max_vpi =
6757                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6758                 phba->sli4_hba.max_cfg_param.vpi_base =
6759                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6760                 phba->sli4_hba.max_cfg_param.max_rpi =
6761                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6762                 phba->sli4_hba.max_cfg_param.rpi_base =
6763                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6764                 phba->sli4_hba.max_cfg_param.max_vfi =
6765                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6766                 phba->sli4_hba.max_cfg_param.vfi_base =
6767                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6768                 phba->sli4_hba.max_cfg_param.max_fcfi =
6769                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6770                 phba->sli4_hba.max_cfg_param.max_eq =
6771                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6772                 phba->sli4_hba.max_cfg_param.max_rq =
6773                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6774                 phba->sli4_hba.max_cfg_param.max_wq =
6775                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6776                 phba->sli4_hba.max_cfg_param.max_cq =
6777                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6778                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6779                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6780                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6781                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6782                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6783                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6784                 phba->max_vports = phba->max_vpi;
6785                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6786                                 "2003 cfg params Extents? %d "
6787                                 "XRI(B:%d M:%d), "
6788                                 "VPI(B:%d M:%d) "
6789                                 "VFI(B:%d M:%d) "
6790                                 "RPI(B:%d M:%d) "
6791                                 "FCFI(Count:%d)\n",
6792                                 phba->sli4_hba.extents_in_use,
6793                                 phba->sli4_hba.max_cfg_param.xri_base,
6794                                 phba->sli4_hba.max_cfg_param.max_xri,
6795                                 phba->sli4_hba.max_cfg_param.vpi_base,
6796                                 phba->sli4_hba.max_cfg_param.max_vpi,
6797                                 phba->sli4_hba.max_cfg_param.vfi_base,
6798                                 phba->sli4_hba.max_cfg_param.max_vfi,
6799                                 phba->sli4_hba.max_cfg_param.rpi_base,
6800                                 phba->sli4_hba.max_cfg_param.max_rpi,
6801                                 phba->sli4_hba.max_cfg_param.max_fcfi);
6802         }
6803
6804         if (rc)
6805                 goto read_cfg_out;
6806
6807         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6808         length = phba->sli4_hba.max_cfg_param.max_xri -
6809                         lpfc_sli4_get_els_iocb_cnt(phba);
6810         if (phba->cfg_hba_queue_depth > length) {
6811                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6812                                 "3361 HBA queue depth changed from %d to %d\n",
6813                                 phba->cfg_hba_queue_depth, length);
6814                 phba->cfg_hba_queue_depth = length;
6815         }
6816
6817         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6818             LPFC_SLI_INTF_IF_TYPE_2)
6819                 goto read_cfg_out;
6820
6821         /* get the pf# and vf# for SLI4 if_type 2 port */
6822         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6823                   sizeof(struct lpfc_sli4_cfg_mhdr));
6824         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6825                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6826                          length, LPFC_SLI4_MBX_EMBED);
6827
6828         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6829         shdr = (union lpfc_sli4_cfg_shdr *)
6830                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6831         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6832         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6833         if (rc2 || shdr_status || shdr_add_status) {
6834                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6835                                 "3026 Mailbox failed , mbxCmd x%x "
6836                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6837                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6838                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6839                 goto read_cfg_out;
6840         }
6841
6842         /* search for fc_fcoe resrouce descriptor */
6843         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6844         desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6845
6846         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6847         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6848         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6849         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6850                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6851         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6852                 goto read_cfg_out;
6853
6854         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6855                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6856                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6857                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6858                         phba->sli4_hba.iov.pf_number =
6859                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6860                         phba->sli4_hba.iov.vf_number =
6861                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6862                         break;
6863                 }
6864         }
6865
6866         if (i < LPFC_RSRC_DESC_MAX_NUM)
6867                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6868                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6869                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6870                                 phba->sli4_hba.iov.vf_number);
6871         else
6872                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6873                                 "3028 GET_FUNCTION_CONFIG: failed to find "
6874                                 "Resrouce Descriptor:x%x\n",
6875                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
6876
6877 read_cfg_out:
6878         mempool_free(pmb, phba->mbox_mem_pool);
6879         return rc;
6880 }
6881
6882 /**
6883  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6884  * @phba: pointer to lpfc hba data structure.
6885  *
6886  * This routine is invoked to setup the port-side endian order when
6887  * the port if_type is 0.  This routine has no function for other
6888  * if_types.
6889  *
6890  * Return codes
6891  *      0 - successful
6892  *      -ENOMEM - No available memory
6893  *      -EIO - The mailbox failed to complete successfully.
6894  **/
6895 static int
6896 lpfc_setup_endian_order(struct lpfc_hba *phba)
6897 {
6898         LPFC_MBOXQ_t *mboxq;
6899         uint32_t if_type, rc = 0;
6900         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6901                                       HOST_ENDIAN_HIGH_WORD1};
6902
6903         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6904         switch (if_type) {
6905         case LPFC_SLI_INTF_IF_TYPE_0:
6906                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6907                                                        GFP_KERNEL);
6908                 if (!mboxq) {
6909                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6910                                         "0492 Unable to allocate memory for "
6911                                         "issuing SLI_CONFIG_SPECIAL mailbox "
6912                                         "command\n");
6913                         return -ENOMEM;
6914                 }
6915
6916                 /*
6917                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6918                  * two words to contain special data values and no other data.
6919                  */
6920                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6921                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6922                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6923                 if (rc != MBX_SUCCESS) {
6924                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6925                                         "0493 SLI_CONFIG_SPECIAL mailbox "
6926                                         "failed with status x%x\n",
6927                                         rc);
6928                         rc = -EIO;
6929                 }
6930                 mempool_free(mboxq, phba->mbox_mem_pool);
6931                 break;
6932         case LPFC_SLI_INTF_IF_TYPE_2:
6933         case LPFC_SLI_INTF_IF_TYPE_1:
6934         default:
6935                 break;
6936         }
6937         return rc;
6938 }
6939
6940 /**
6941  * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
6942  * @phba: pointer to lpfc hba data structure.
6943  *
6944  * This routine is invoked to check the user settable queue counts for EQs and
6945  * CQs. after this routine is called the counts will be set to valid values that
6946  * adhere to the constraints of the system's interrupt vectors and the port's
6947  * queue resources.
6948  *
6949  * Return codes
6950  *      0 - successful
6951  *      -ENOMEM - No available memory
6952  **/
6953 static int
6954 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
6955 {
6956         int cfg_fcp_io_channel;
6957         uint32_t cpu;
6958         uint32_t i = 0;
6959         int fof_vectors = phba->cfg_fof ? 1 : 0;
6960
6961         /*
6962          * Sanity check for configured queue parameters against the run-time
6963          * device parameters
6964          */
6965
6966         /* Sanity check on HBA EQ parameters */
6967         cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
6968
6969         /* It doesn't make sense to have more io channels then online CPUs */
6970         for_each_present_cpu(cpu) {
6971                 if (cpu_online(cpu))
6972                         i++;
6973         }
6974         phba->sli4_hba.num_online_cpu = i;
6975         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
6976         phba->sli4_hba.curr_disp_cpu = 0;
6977
6978         if (i < cfg_fcp_io_channel) {
6979                 lpfc_printf_log(phba,
6980                                 KERN_ERR, LOG_INIT,
6981                                 "3188 Reducing IO channels to match number of "
6982                                 "online CPUs: from %d to %d\n",
6983                                 cfg_fcp_io_channel, i);
6984                 cfg_fcp_io_channel = i;
6985         }
6986
6987         if (cfg_fcp_io_channel + fof_vectors >
6988             phba->sli4_hba.max_cfg_param.max_eq) {
6989                 if (phba->sli4_hba.max_cfg_param.max_eq <
6990                     LPFC_FCP_IO_CHAN_MIN) {
6991                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6992                                         "2574 Not enough EQs (%d) from the "
6993                                         "pci function for supporting FCP "
6994                                         "EQs (%d)\n",
6995                                         phba->sli4_hba.max_cfg_param.max_eq,
6996                                         phba->cfg_fcp_io_channel);
6997                         goto out_error;
6998                 }
6999                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7000                                 "2575 Reducing IO channels to match number of "
7001                                 "available EQs: from %d to %d\n",
7002                                 cfg_fcp_io_channel,
7003                                 phba->sli4_hba.max_cfg_param.max_eq);
7004                 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
7005                         fof_vectors;
7006         }
7007
7008         /* The actual number of FCP event queues adopted */
7009         phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
7010
7011         /* Get EQ depth from module parameter, fake the default for now */
7012         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7013         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7014
7015         /* Get CQ depth from module parameter, fake the default for now */
7016         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7017         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7018
7019         return 0;
7020 out_error:
7021         return -ENOMEM;
7022 }
7023
7024 /**
7025  * lpfc_sli4_queue_create - Create all the SLI4 queues
7026  * @phba: pointer to lpfc hba data structure.
7027  *
7028  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7029  * operation. For each SLI4 queue type, the parameters such as queue entry
7030  * count (queue depth) shall be taken from the module parameter. For now,
7031  * we just use some constant number as place holder.
7032  *
7033  * Return codes
7034  *      0 - successful
7035  *      -ENOMEM - No availble memory
7036  *      -EIO - The mailbox failed to complete successfully.
7037  **/
7038 int
7039 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7040 {
7041         struct lpfc_queue *qdesc;
7042         int idx;
7043
7044         /*
7045          * Create HBA Record arrays.
7046          */
7047         if (!phba->cfg_fcp_io_channel)
7048                 return -ERANGE;
7049
7050         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7051         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7052         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7053         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7054         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7055         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7056
7057         phba->sli4_hba.hba_eq =  kzalloc((sizeof(struct lpfc_queue *) *
7058                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7059         if (!phba->sli4_hba.hba_eq) {
7060                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7061                         "2576 Failed allocate memory for "
7062                         "fast-path EQ record array\n");
7063                 goto out_error;
7064         }
7065
7066         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
7067                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7068         if (!phba->sli4_hba.fcp_cq) {
7069                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7070                                 "2577 Failed allocate memory for fast-path "
7071                                 "CQ record array\n");
7072                 goto out_error;
7073         }
7074
7075         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
7076                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7077         if (!phba->sli4_hba.fcp_wq) {
7078                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7079                                 "2578 Failed allocate memory for fast-path "
7080                                 "WQ record array\n");
7081                 goto out_error;
7082         }
7083
7084         /*
7085          * Since the first EQ can have multiple CQs associated with it,
7086          * this array is used to quickly see if we have a FCP fast-path
7087          * CQ match.
7088          */
7089         phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
7090                                          phba->cfg_fcp_io_channel), GFP_KERNEL);
7091         if (!phba->sli4_hba.fcp_cq_map) {
7092                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7093                                 "2545 Failed allocate memory for fast-path "
7094                                 "CQ map\n");
7095                 goto out_error;
7096         }
7097
7098         /*
7099          * Create HBA Event Queues (EQs).  The cfg_fcp_io_channel specifies
7100          * how many EQs to create.
7101          */
7102         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7103
7104                 /* Create EQs */
7105                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
7106                                               phba->sli4_hba.eq_ecount);
7107                 if (!qdesc) {
7108                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7109                                         "0497 Failed allocate EQ (%d)\n", idx);
7110                         goto out_error;
7111                 }
7112                 phba->sli4_hba.hba_eq[idx] = qdesc;
7113
7114                 /* Create Fast Path FCP CQs */
7115                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7116                                               phba->sli4_hba.cq_ecount);
7117                 if (!qdesc) {
7118                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7119                                         "0499 Failed allocate fast-path FCP "
7120                                         "CQ (%d)\n", idx);
7121                         goto out_error;
7122                 }
7123                 phba->sli4_hba.fcp_cq[idx] = qdesc;
7124
7125                 /* Create Fast Path FCP WQs */
7126                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7127                                               phba->sli4_hba.wq_ecount);
7128                 if (!qdesc) {
7129                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7130                                         "0503 Failed allocate fast-path FCP "
7131                                         "WQ (%d)\n", idx);
7132                         goto out_error;
7133                 }
7134                 phba->sli4_hba.fcp_wq[idx] = qdesc;
7135         }
7136
7137
7138         /*
7139          * Create Slow Path Completion Queues (CQs)
7140          */
7141
7142         /* Create slow-path Mailbox Command Complete Queue */
7143         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7144                                       phba->sli4_hba.cq_ecount);
7145         if (!qdesc) {
7146                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7147                                 "0500 Failed allocate slow-path mailbox CQ\n");
7148                 goto out_error;
7149         }
7150         phba->sli4_hba.mbx_cq = qdesc;
7151
7152         /* Create slow-path ELS Complete Queue */
7153         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7154                                       phba->sli4_hba.cq_ecount);
7155         if (!qdesc) {
7156                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7157                                 "0501 Failed allocate slow-path ELS CQ\n");
7158                 goto out_error;
7159         }
7160         phba->sli4_hba.els_cq = qdesc;
7161
7162
7163         /*
7164          * Create Slow Path Work Queues (WQs)
7165          */
7166
7167         /* Create Mailbox Command Queue */
7168
7169         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7170                                       phba->sli4_hba.mq_ecount);
7171         if (!qdesc) {
7172                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7173                                 "0505 Failed allocate slow-path MQ\n");
7174                 goto out_error;
7175         }
7176         phba->sli4_hba.mbx_wq = qdesc;
7177
7178         /*
7179          * Create ELS Work Queues
7180          */
7181
7182         /* Create slow-path ELS Work Queue */
7183         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7184                                       phba->sli4_hba.wq_ecount);
7185         if (!qdesc) {
7186                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7187                                 "0504 Failed allocate slow-path ELS WQ\n");
7188                 goto out_error;
7189         }
7190         phba->sli4_hba.els_wq = qdesc;
7191
7192         /*
7193          * Create Receive Queue (RQ)
7194          */
7195
7196         /* Create Receive Queue for header */
7197         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7198                                       phba->sli4_hba.rq_ecount);
7199         if (!qdesc) {
7200                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7201                                 "0506 Failed allocate receive HRQ\n");
7202                 goto out_error;
7203         }
7204         phba->sli4_hba.hdr_rq = qdesc;
7205
7206         /* Create Receive Queue for data */
7207         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7208                                       phba->sli4_hba.rq_ecount);
7209         if (!qdesc) {
7210                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7211                                 "0507 Failed allocate receive DRQ\n");
7212                 goto out_error;
7213         }
7214         phba->sli4_hba.dat_rq = qdesc;
7215
7216         /* Create the Queues needed for Flash Optimized Fabric operations */
7217         if (phba->cfg_fof)
7218                 lpfc_fof_queue_create(phba);
7219         return 0;
7220
7221 out_error:
7222         lpfc_sli4_queue_destroy(phba);
7223         return -ENOMEM;
7224 }
7225
7226 /**
7227  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7228  * @phba: pointer to lpfc hba data structure.
7229  *
7230  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7231  * operation.
7232  *
7233  * Return codes
7234  *      0 - successful
7235  *      -ENOMEM - No available memory
7236  *      -EIO - The mailbox failed to complete successfully.
7237  **/
7238 void
7239 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7240 {
7241         int idx;
7242
7243         if (phba->cfg_fof)
7244                 lpfc_fof_queue_destroy(phba);
7245
7246         if (phba->sli4_hba.hba_eq != NULL) {
7247                 /* Release HBA event queue */
7248                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7249                         if (phba->sli4_hba.hba_eq[idx] != NULL) {
7250                                 lpfc_sli4_queue_free(
7251                                         phba->sli4_hba.hba_eq[idx]);
7252                                 phba->sli4_hba.hba_eq[idx] = NULL;
7253                         }
7254                 }
7255                 kfree(phba->sli4_hba.hba_eq);
7256                 phba->sli4_hba.hba_eq = NULL;
7257         }
7258
7259         if (phba->sli4_hba.fcp_cq != NULL) {
7260                 /* Release FCP completion queue */
7261                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7262                         if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7263                                 lpfc_sli4_queue_free(
7264                                         phba->sli4_hba.fcp_cq[idx]);
7265                                 phba->sli4_hba.fcp_cq[idx] = NULL;
7266                         }
7267                 }
7268                 kfree(phba->sli4_hba.fcp_cq);
7269                 phba->sli4_hba.fcp_cq = NULL;
7270         }
7271
7272         if (phba->sli4_hba.fcp_wq != NULL) {
7273                 /* Release FCP work queue */
7274                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7275                         if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7276                                 lpfc_sli4_queue_free(
7277                                         phba->sli4_hba.fcp_wq[idx]);
7278                                 phba->sli4_hba.fcp_wq[idx] = NULL;
7279                         }
7280                 }
7281                 kfree(phba->sli4_hba.fcp_wq);
7282                 phba->sli4_hba.fcp_wq = NULL;
7283         }
7284
7285         /* Release FCP CQ mapping array */
7286         if (phba->sli4_hba.fcp_cq_map != NULL) {
7287                 kfree(phba->sli4_hba.fcp_cq_map);
7288                 phba->sli4_hba.fcp_cq_map = NULL;
7289         }
7290
7291         /* Release mailbox command work queue */
7292         if (phba->sli4_hba.mbx_wq != NULL) {
7293                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7294                 phba->sli4_hba.mbx_wq = NULL;
7295         }
7296
7297         /* Release ELS work queue */
7298         if (phba->sli4_hba.els_wq != NULL) {
7299                 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7300                 phba->sli4_hba.els_wq = NULL;
7301         }
7302
7303         /* Release unsolicited receive queue */
7304         if (phba->sli4_hba.hdr_rq != NULL) {
7305                 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7306                 phba->sli4_hba.hdr_rq = NULL;
7307         }
7308         if (phba->sli4_hba.dat_rq != NULL) {
7309                 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7310                 phba->sli4_hba.dat_rq = NULL;
7311         }
7312
7313         /* Release ELS complete queue */
7314         if (phba->sli4_hba.els_cq != NULL) {
7315                 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7316                 phba->sli4_hba.els_cq = NULL;
7317         }
7318
7319         /* Release mailbox command complete queue */
7320         if (phba->sli4_hba.mbx_cq != NULL) {
7321                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7322                 phba->sli4_hba.mbx_cq = NULL;
7323         }
7324
7325         return;
7326 }
7327
7328 /**
7329  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7330  * @phba: pointer to lpfc hba data structure.
7331  *
7332  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7333  * operation.
7334  *
7335  * Return codes
7336  *      0 - successful
7337  *      -ENOMEM - No available memory
7338  *      -EIO - The mailbox failed to complete successfully.
7339  **/
7340 int
7341 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7342 {
7343         struct lpfc_sli *psli = &phba->sli;
7344         struct lpfc_sli_ring *pring;
7345         int rc = -ENOMEM;
7346         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7347         int fcp_cq_index = 0;
7348         uint32_t shdr_status, shdr_add_status;
7349         union lpfc_sli4_cfg_shdr *shdr;
7350         LPFC_MBOXQ_t *mboxq;
7351         uint32_t length;
7352
7353         /* Check for dual-ULP support */
7354         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7355         if (!mboxq) {
7356                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7357                                 "3249 Unable to allocate memory for "
7358                                 "QUERY_FW_CFG mailbox command\n");
7359                 return -ENOMEM;
7360         }
7361         length = (sizeof(struct lpfc_mbx_query_fw_config) -
7362                   sizeof(struct lpfc_sli4_cfg_mhdr));
7363         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7364                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7365                          length, LPFC_SLI4_MBX_EMBED);
7366
7367         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7368
7369         shdr = (union lpfc_sli4_cfg_shdr *)
7370                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7371         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7372         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7373         if (shdr_status || shdr_add_status || rc) {
7374                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7375                                 "3250 QUERY_FW_CFG mailbox failed with status "
7376                                 "x%x add_status x%x, mbx status x%x\n",
7377                                 shdr_status, shdr_add_status, rc);
7378                 if (rc != MBX_TIMEOUT)
7379                         mempool_free(mboxq, phba->mbox_mem_pool);
7380                 rc = -ENXIO;
7381                 goto out_error;
7382         }
7383
7384         phba->sli4_hba.fw_func_mode =
7385                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7386         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7387         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
7388         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7389                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7390                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7391                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7392
7393         if (rc != MBX_TIMEOUT)
7394                 mempool_free(mboxq, phba->mbox_mem_pool);
7395
7396         /*
7397          * Set up HBA Event Queues (EQs)
7398          */
7399
7400         /* Set up HBA event queue */
7401         if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7402                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7403                                 "3147 Fast-path EQs not allocated\n");
7404                 rc = -ENOMEM;
7405                 goto out_error;
7406         }
7407         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7408                 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7409                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7410                                         "0522 Fast-path EQ (%d) not "
7411                                         "allocated\n", fcp_eqidx);
7412                         rc = -ENOMEM;
7413                         goto out_destroy_hba_eq;
7414                 }
7415                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7416                          (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7417                 if (rc) {
7418                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7419                                         "0523 Failed setup of fast-path EQ "
7420                                         "(%d), rc = 0x%x\n", fcp_eqidx, rc);
7421                         goto out_destroy_hba_eq;
7422                 }
7423                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7424                                 "2584 HBA EQ setup: "
7425                                 "queue[%d]-id=%d\n", fcp_eqidx,
7426                                 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7427         }
7428
7429         /* Set up fast-path FCP Response Complete Queue */
7430         if (!phba->sli4_hba.fcp_cq) {
7431                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7432                                 "3148 Fast-path FCP CQ array not "
7433                                 "allocated\n");
7434                 rc = -ENOMEM;
7435                 goto out_destroy_hba_eq;
7436         }
7437
7438         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7439                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7440                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7441                                         "0526 Fast-path FCP CQ (%d) not "
7442                                         "allocated\n", fcp_cqidx);
7443                         rc = -ENOMEM;
7444                         goto out_destroy_fcp_cq;
7445                 }
7446                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7447                         phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7448                 if (rc) {
7449                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7450                                         "0527 Failed setup of fast-path FCP "
7451                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
7452                         goto out_destroy_fcp_cq;
7453                 }
7454
7455                 /* Setup fcp_cq_map for fast lookup */
7456                 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7457                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7458
7459                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7460                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
7461                                 "parent seq[%d]-id=%d\n",
7462                                 fcp_cqidx,
7463                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7464                                 fcp_cqidx,
7465                                 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7466         }
7467
7468         /* Set up fast-path FCP Work Queue */
7469         if (!phba->sli4_hba.fcp_wq) {
7470                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7471                                 "3149 Fast-path FCP WQ array not "
7472                                 "allocated\n");
7473                 rc = -ENOMEM;
7474                 goto out_destroy_fcp_cq;
7475         }
7476
7477         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7478                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7479                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7480                                         "0534 Fast-path FCP WQ (%d) not "
7481                                         "allocated\n", fcp_wqidx);
7482                         rc = -ENOMEM;
7483                         goto out_destroy_fcp_wq;
7484                 }
7485                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7486                                     phba->sli4_hba.fcp_cq[fcp_wqidx],
7487                                     LPFC_FCP);
7488                 if (rc) {
7489                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7490                                         "0535 Failed setup of fast-path FCP "
7491                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
7492                         goto out_destroy_fcp_wq;
7493                 }
7494
7495                 /* Bind this WQ to the next FCP ring */
7496                 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7497                 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7498                 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7499
7500                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7501                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
7502                                 "parent cq[%d]-id=%d\n",
7503                                 fcp_wqidx,
7504                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7505                                 fcp_cq_index,
7506                                 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7507         }
7508         /*
7509          * Set up Complete Queues (CQs)
7510          */
7511
7512         /* Set up slow-path MBOX Complete Queue as the first CQ */
7513         if (!phba->sli4_hba.mbx_cq) {
7514                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7515                                 "0528 Mailbox CQ not allocated\n");
7516                 rc = -ENOMEM;
7517                 goto out_destroy_fcp_wq;
7518         }
7519         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7520                         phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7521         if (rc) {
7522                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7523                                 "0529 Failed setup of slow-path mailbox CQ: "
7524                                 "rc = 0x%x\n", rc);
7525                 goto out_destroy_fcp_wq;
7526         }
7527         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7528                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7529                         phba->sli4_hba.mbx_cq->queue_id,
7530                         phba->sli4_hba.hba_eq[0]->queue_id);
7531
7532         /* Set up slow-path ELS Complete Queue */
7533         if (!phba->sli4_hba.els_cq) {
7534                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7535                                 "0530 ELS CQ not allocated\n");
7536                 rc = -ENOMEM;
7537                 goto out_destroy_mbx_cq;
7538         }
7539         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7540                         phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7541         if (rc) {
7542                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7543                                 "0531 Failed setup of slow-path ELS CQ: "
7544                                 "rc = 0x%x\n", rc);
7545                 goto out_destroy_mbx_cq;
7546         }
7547         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7548                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7549                         phba->sli4_hba.els_cq->queue_id,
7550                         phba->sli4_hba.hba_eq[0]->queue_id);
7551
7552         /*
7553          * Set up all the Work Queues (WQs)
7554          */
7555
7556         /* Set up Mailbox Command Queue */
7557         if (!phba->sli4_hba.mbx_wq) {
7558                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7559                                 "0538 Slow-path MQ not allocated\n");
7560                 rc = -ENOMEM;
7561                 goto out_destroy_els_cq;
7562         }
7563         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7564                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
7565         if (rc) {
7566                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7567                                 "0539 Failed setup of slow-path MQ: "
7568                                 "rc = 0x%x\n", rc);
7569                 goto out_destroy_els_cq;
7570         }
7571         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7572                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7573                         phba->sli4_hba.mbx_wq->queue_id,
7574                         phba->sli4_hba.mbx_cq->queue_id);
7575
7576         /* Set up slow-path ELS Work Queue */
7577         if (!phba->sli4_hba.els_wq) {
7578                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7579                                 "0536 Slow-path ELS WQ not allocated\n");
7580                 rc = -ENOMEM;
7581                 goto out_destroy_mbx_wq;
7582         }
7583         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7584                             phba->sli4_hba.els_cq, LPFC_ELS);
7585         if (rc) {
7586                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7587                                 "0537 Failed setup of slow-path ELS WQ: "
7588                                 "rc = 0x%x\n", rc);
7589                 goto out_destroy_mbx_wq;
7590         }
7591
7592         /* Bind this WQ to the ELS ring */
7593         pring = &psli->ring[LPFC_ELS_RING];
7594         pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7595         phba->sli4_hba.els_cq->pring = pring;
7596
7597         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7598                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7599                         phba->sli4_hba.els_wq->queue_id,
7600                         phba->sli4_hba.els_cq->queue_id);
7601
7602         /*
7603          * Create Receive Queue (RQ)
7604          */
7605         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7606                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7607                                 "0540 Receive Queue not allocated\n");
7608                 rc = -ENOMEM;
7609                 goto out_destroy_els_wq;
7610         }
7611
7612         lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7613         lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7614
7615         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7616                             phba->sli4_hba.els_cq, LPFC_USOL);
7617         if (rc) {
7618                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7619                                 "0541 Failed setup of Receive Queue: "
7620                                 "rc = 0x%x\n", rc);
7621                 goto out_destroy_fcp_wq;
7622         }
7623
7624         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7625                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7626                         "parent cq-id=%d\n",
7627                         phba->sli4_hba.hdr_rq->queue_id,
7628                         phba->sli4_hba.dat_rq->queue_id,
7629                         phba->sli4_hba.els_cq->queue_id);
7630
7631         if (phba->cfg_fof) {
7632                 rc = lpfc_fof_queue_setup(phba);
7633                 if (rc) {
7634                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7635                                         "0549 Failed setup of FOF Queues: "
7636                                         "rc = 0x%x\n", rc);
7637                         goto out_destroy_els_rq;
7638                 }
7639         }
7640         return 0;
7641
7642 out_destroy_els_rq:
7643         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7644 out_destroy_els_wq:
7645         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7646 out_destroy_mbx_wq:
7647         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7648 out_destroy_els_cq:
7649         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7650 out_destroy_mbx_cq:
7651         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7652 out_destroy_fcp_wq:
7653         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7654                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7655 out_destroy_fcp_cq:
7656         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7657                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7658 out_destroy_hba_eq:
7659         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7660                 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7661 out_error:
7662         return rc;
7663 }
7664
7665 /**
7666  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7667  * @phba: pointer to lpfc hba data structure.
7668  *
7669  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7670  * operation.
7671  *
7672  * Return codes
7673  *      0 - successful
7674  *      -ENOMEM - No available memory
7675  *      -EIO - The mailbox failed to complete successfully.
7676  **/
7677 void
7678 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7679 {
7680         int fcp_qidx;
7681
7682         /* Unset the queues created for Flash Optimized Fabric operations */
7683         if (phba->cfg_fof)
7684                 lpfc_fof_queue_destroy(phba);
7685         /* Unset mailbox command work queue */
7686         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7687         /* Unset ELS work queue */
7688         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7689         /* Unset unsolicited receive queue */
7690         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7691         /* Unset FCP work queue */
7692         if (phba->sli4_hba.fcp_wq) {
7693                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7694                      fcp_qidx++)
7695                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7696         }
7697         /* Unset mailbox command complete queue */
7698         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7699         /* Unset ELS complete queue */
7700         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7701         /* Unset FCP response complete queue */
7702         if (phba->sli4_hba.fcp_cq) {
7703                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7704                      fcp_qidx++)
7705                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7706         }
7707         /* Unset fast-path event queue */
7708         if (phba->sli4_hba.hba_eq) {
7709                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7710                      fcp_qidx++)
7711                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7712         }
7713 }
7714
7715 /**
7716  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7717  * @phba: pointer to lpfc hba data structure.
7718  *
7719  * This routine is invoked to allocate and set up a pool of completion queue
7720  * events. The body of the completion queue event is a completion queue entry
7721  * CQE. For now, this pool is used for the interrupt service routine to queue
7722  * the following HBA completion queue events for the worker thread to process:
7723  *   - Mailbox asynchronous events
7724  *   - Receive queue completion unsolicited events
7725  * Later, this can be used for all the slow-path events.
7726  *
7727  * Return codes
7728  *      0 - successful
7729  *      -ENOMEM - No available memory
7730  **/
7731 static int
7732 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7733 {
7734         struct lpfc_cq_event *cq_event;
7735         int i;
7736
7737         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7738                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7739                 if (!cq_event)
7740                         goto out_pool_create_fail;
7741                 list_add_tail(&cq_event->list,
7742                               &phba->sli4_hba.sp_cqe_event_pool);
7743         }
7744         return 0;
7745
7746 out_pool_create_fail:
7747         lpfc_sli4_cq_event_pool_destroy(phba);
7748         return -ENOMEM;
7749 }
7750
7751 /**
7752  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7753  * @phba: pointer to lpfc hba data structure.
7754  *
7755  * This routine is invoked to free the pool of completion queue events at
7756  * driver unload time. Note that, it is the responsibility of the driver
7757  * cleanup routine to free all the outstanding completion-queue events
7758  * allocated from this pool back into the pool before invoking this routine
7759  * to destroy the pool.
7760  **/
7761 static void
7762 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7763 {
7764         struct lpfc_cq_event *cq_event, *next_cq_event;
7765
7766         list_for_each_entry_safe(cq_event, next_cq_event,
7767                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
7768                 list_del(&cq_event->list);
7769                 kfree(cq_event);
7770         }
7771 }
7772
7773 /**
7774  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7775  * @phba: pointer to lpfc hba data structure.
7776  *
7777  * This routine is the lock free version of the API invoked to allocate a
7778  * completion-queue event from the free pool.
7779  *
7780  * Return: Pointer to the newly allocated completion-queue event if successful
7781  *         NULL otherwise.
7782  **/
7783 struct lpfc_cq_event *
7784 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7785 {
7786         struct lpfc_cq_event *cq_event = NULL;
7787
7788         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7789                          struct lpfc_cq_event, list);
7790         return cq_event;
7791 }
7792
7793 /**
7794  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7795  * @phba: pointer to lpfc hba data structure.
7796  *
7797  * This routine is the lock version of the API invoked to allocate a
7798  * completion-queue event from the free pool.
7799  *
7800  * Return: Pointer to the newly allocated completion-queue event if successful
7801  *         NULL otherwise.
7802  **/
7803 struct lpfc_cq_event *
7804 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7805 {
7806         struct lpfc_cq_event *cq_event;
7807         unsigned long iflags;
7808
7809         spin_lock_irqsave(&phba->hbalock, iflags);
7810         cq_event = __lpfc_sli4_cq_event_alloc(phba);
7811         spin_unlock_irqrestore(&phba->hbalock, iflags);
7812         return cq_event;
7813 }
7814
7815 /**
7816  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7817  * @phba: pointer to lpfc hba data structure.
7818  * @cq_event: pointer to the completion queue event to be freed.
7819  *
7820  * This routine is the lock free version of the API invoked to release a
7821  * completion-queue event back into the free pool.
7822  **/
7823 void
7824 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7825                              struct lpfc_cq_event *cq_event)
7826 {
7827         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7828 }
7829
7830 /**
7831  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7832  * @phba: pointer to lpfc hba data structure.
7833  * @cq_event: pointer to the completion queue event to be freed.
7834  *
7835  * This routine is the lock version of the API invoked to release a
7836  * completion-queue event back into the free pool.
7837  **/
7838 void
7839 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7840                            struct lpfc_cq_event *cq_event)
7841 {
7842         unsigned long iflags;
7843         spin_lock_irqsave(&phba->hbalock, iflags);
7844         __lpfc_sli4_cq_event_release(phba, cq_event);
7845         spin_unlock_irqrestore(&phba->hbalock, iflags);
7846 }
7847
7848 /**
7849  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7850  * @phba: pointer to lpfc hba data structure.
7851  *
7852  * This routine is to free all the pending completion-queue events to the
7853  * back into the free pool for device reset.
7854  **/
7855 static void
7856 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7857 {
7858         LIST_HEAD(cqelist);
7859         struct lpfc_cq_event *cqe;
7860         unsigned long iflags;
7861
7862         /* Retrieve all the pending WCQEs from pending WCQE lists */
7863         spin_lock_irqsave(&phba->hbalock, iflags);
7864         /* Pending FCP XRI abort events */
7865         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7866                          &cqelist);
7867         /* Pending ELS XRI abort events */
7868         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7869                          &cqelist);
7870         /* Pending asynnc events */
7871         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7872                          &cqelist);
7873         spin_unlock_irqrestore(&phba->hbalock, iflags);
7874
7875         while (!list_empty(&cqelist)) {
7876                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7877                 lpfc_sli4_cq_event_release(phba, cqe);
7878         }
7879 }
7880
7881 /**
7882  * lpfc_pci_function_reset - Reset pci function.
7883  * @phba: pointer to lpfc hba data structure.
7884  *
7885  * This routine is invoked to request a PCI function reset. It will destroys
7886  * all resources assigned to the PCI function which originates this request.
7887  *
7888  * Return codes
7889  *      0 - successful
7890  *      -ENOMEM - No available memory
7891  *      -EIO - The mailbox failed to complete successfully.
7892  **/
7893 int
7894 lpfc_pci_function_reset(struct lpfc_hba *phba)
7895 {
7896         LPFC_MBOXQ_t *mboxq;
7897         uint32_t rc = 0, if_type;
7898         uint32_t shdr_status, shdr_add_status;
7899         uint32_t rdy_chk, num_resets = 0, reset_again = 0;
7900         union lpfc_sli4_cfg_shdr *shdr;
7901         struct lpfc_register reg_data;
7902         uint16_t devid;
7903
7904         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7905         switch (if_type) {
7906         case LPFC_SLI_INTF_IF_TYPE_0:
7907                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7908                                                        GFP_KERNEL);
7909                 if (!mboxq) {
7910                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7911                                         "0494 Unable to allocate memory for "
7912                                         "issuing SLI_FUNCTION_RESET mailbox "
7913                                         "command\n");
7914                         return -ENOMEM;
7915                 }
7916
7917                 /* Setup PCI function reset mailbox-ioctl command */
7918                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7919                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7920                                  LPFC_SLI4_MBX_EMBED);
7921                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7922                 shdr = (union lpfc_sli4_cfg_shdr *)
7923                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7924                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7925                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7926                                          &shdr->response);
7927                 if (rc != MBX_TIMEOUT)
7928                         mempool_free(mboxq, phba->mbox_mem_pool);
7929                 if (shdr_status || shdr_add_status || rc) {
7930                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7931                                         "0495 SLI_FUNCTION_RESET mailbox "
7932                                         "failed with status x%x add_status x%x,"
7933                                         " mbx status x%x\n",
7934                                         shdr_status, shdr_add_status, rc);
7935                         rc = -ENXIO;
7936                 }
7937                 break;
7938         case LPFC_SLI_INTF_IF_TYPE_2:
7939                 for (num_resets = 0;
7940                      num_resets < MAX_IF_TYPE_2_RESETS;
7941                      num_resets++) {
7942                         reg_data.word0 = 0;
7943                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
7944                                LPFC_SLIPORT_LITTLE_ENDIAN);
7945                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
7946                                LPFC_SLIPORT_INIT_PORT);
7947                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7948                                CTRLregaddr);
7949                         /* flush */
7950                         pci_read_config_word(phba->pcidev,
7951                                              PCI_DEVICE_ID, &devid);
7952                         /*
7953                          * Poll the Port Status Register and wait for RDY for
7954                          * up to 10 seconds.  If the port doesn't respond, treat
7955                          * it as an error.  If the port responds with RN, start
7956                          * the loop again.
7957                          */
7958                         for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
7959                                 msleep(10);
7960                                 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7961                                               STATUSregaddr, &reg_data.word0)) {
7962                                         rc = -ENODEV;
7963                                         goto out;
7964                                 }
7965                                 if (bf_get(lpfc_sliport_status_rn, &reg_data))
7966                                         reset_again++;
7967                                 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
7968                                         break;
7969                         }
7970
7971                         /*
7972                          * If the port responds to the init request with
7973                          * reset needed, delay for a bit and restart the loop.
7974                          */
7975                         if (reset_again && (rdy_chk < 1000)) {
7976                                 msleep(10);
7977                                 reset_again = 0;
7978                                 continue;
7979                         }
7980
7981                         /* Detect any port errors. */
7982                         if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7983                             (rdy_chk >= 1000)) {
7984                                 phba->work_status[0] = readl(
7985                                         phba->sli4_hba.u.if_type2.ERR1regaddr);
7986                                 phba->work_status[1] = readl(
7987                                         phba->sli4_hba.u.if_type2.ERR2regaddr);
7988                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7989                                         "2890 Port error detected during port "
7990                                         "reset(%d): wait_tmo:%d ms, "
7991                                         "port status reg 0x%x, "
7992                                         "error 1=0x%x, error 2=0x%x\n",
7993                                         num_resets, rdy_chk*10,
7994                                         reg_data.word0,
7995                                         phba->work_status[0],
7996                                         phba->work_status[1]);
7997                                 rc = -ENODEV;
7998                         }
7999
8000                         /*
8001                          * Terminate the outer loop provided the Port indicated
8002                          * ready within 10 seconds.
8003                          */
8004                         if (rdy_chk < 1000)
8005                                 break;
8006                 }
8007                 /* delay driver action following IF_TYPE_2 function reset */
8008                 msleep(100);
8009                 break;
8010         case LPFC_SLI_INTF_IF_TYPE_1:
8011         default:
8012                 break;
8013         }
8014
8015 out:
8016         /* Catch the not-ready port failure after a port reset. */
8017         if (num_resets >= MAX_IF_TYPE_2_RESETS) {
8018                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8019                                 "3317 HBA not functional: IP Reset Failed "
8020                                 "after (%d) retries, try: "
8021                                 "echo fw_reset > board_mode\n", num_resets);
8022                 rc = -ENODEV;
8023         }
8024
8025         return rc;
8026 }
8027
8028 /**
8029  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
8030  * @phba: pointer to lpfc hba data structure.
8031  *
8032  * This routine is invoked to set up the PCI device memory space for device
8033  * with SLI-4 interface spec.
8034  *
8035  * Return codes
8036  *      0 - successful
8037  *      other values - error
8038  **/
8039 static int
8040 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
8041 {
8042         struct pci_dev *pdev;
8043         unsigned long bar0map_len, bar1map_len, bar2map_len;
8044         int error = -ENODEV;
8045         uint32_t if_type;
8046
8047         /* Obtain PCI device reference */
8048         if (!phba->pcidev)
8049                 return error;
8050         else
8051                 pdev = phba->pcidev;
8052
8053         /* Set the device DMA mask size */
8054         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
8055          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
8056                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
8057                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
8058                         return error;
8059                 }
8060         }
8061
8062         /*
8063          * The BARs and register set definitions and offset locations are
8064          * dependent on the if_type.
8065          */
8066         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
8067                                   &phba->sli4_hba.sli_intf.word0)) {
8068                 return error;
8069         }
8070
8071         /* There is no SLI3 failback for SLI4 devices. */
8072         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
8073             LPFC_SLI_INTF_VALID) {
8074                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8075                                 "2894 SLI_INTF reg contents invalid "
8076                                 "sli_intf reg 0x%x\n",
8077                                 phba->sli4_hba.sli_intf.word0);
8078                 return error;
8079         }
8080
8081         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8082         /*
8083          * Get the bus address of SLI4 device Bar regions and the
8084          * number of bytes required by each mapping. The mapping of the
8085          * particular PCI BARs regions is dependent on the type of
8086          * SLI4 device.
8087          */
8088         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
8089                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
8090                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
8091
8092                 /*
8093                  * Map SLI4 PCI Config Space Register base to a kernel virtual
8094                  * addr
8095                  */
8096                 phba->sli4_hba.conf_regs_memmap_p =
8097                         ioremap(phba->pci_bar0_map, bar0map_len);
8098                 if (!phba->sli4_hba.conf_regs_memmap_p) {
8099                         dev_printk(KERN_ERR, &pdev->dev,
8100                                    "ioremap failed for SLI4 PCI config "
8101                                    "registers.\n");
8102                         goto out;
8103                 }
8104                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
8105                 /* Set up BAR0 PCI config space register memory map */
8106                 lpfc_sli4_bar0_register_memmap(phba, if_type);
8107         } else {
8108                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
8109                 bar0map_len = pci_resource_len(pdev, 1);
8110                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8111                         dev_printk(KERN_ERR, &pdev->dev,
8112                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
8113                         goto out;
8114                 }
8115                 phba->sli4_hba.conf_regs_memmap_p =
8116                                 ioremap(phba->pci_bar0_map, bar0map_len);
8117                 if (!phba->sli4_hba.conf_regs_memmap_p) {
8118                         dev_printk(KERN_ERR, &pdev->dev,
8119                                 "ioremap failed for SLI4 PCI config "
8120                                 "registers.\n");
8121                                 goto out;
8122                 }
8123                 lpfc_sli4_bar0_register_memmap(phba, if_type);
8124         }
8125
8126         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8127             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
8128                 /*
8129                  * Map SLI4 if type 0 HBA Control Register base to a kernel
8130                  * virtual address and setup the registers.
8131                  */
8132                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
8133                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
8134                 phba->sli4_hba.ctrl_regs_memmap_p =
8135                                 ioremap(phba->pci_bar1_map, bar1map_len);
8136                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
8137                         dev_printk(KERN_ERR, &pdev->dev,
8138                            "ioremap failed for SLI4 HBA control registers.\n");
8139                         goto out_iounmap_conf;
8140                 }
8141                 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
8142                 lpfc_sli4_bar1_register_memmap(phba);
8143         }
8144
8145         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8146             (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
8147                 /*
8148                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
8149                  * virtual address and setup the registers.
8150                  */
8151                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
8152                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
8153                 phba->sli4_hba.drbl_regs_memmap_p =
8154                                 ioremap(phba->pci_bar2_map, bar2map_len);
8155                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
8156                         dev_printk(KERN_ERR, &pdev->dev,
8157                            "ioremap failed for SLI4 HBA doorbell registers.\n");
8158                         goto out_iounmap_ctrl;
8159                 }
8160                 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
8161                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
8162                 if (error)
8163                         goto out_iounmap_all;
8164         }
8165
8166         return 0;
8167
8168 out_iounmap_all:
8169         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8170 out_iounmap_ctrl:
8171         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8172 out_iounmap_conf:
8173         iounmap(phba->sli4_hba.conf_regs_memmap_p);
8174 out:
8175         return error;
8176 }
8177
8178 /**
8179  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8180  * @phba: pointer to lpfc hba data structure.
8181  *
8182  * This routine is invoked to unset the PCI device memory space for device
8183  * with SLI-4 interface spec.
8184  **/
8185 static void
8186 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8187 {
8188         uint32_t if_type;
8189         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8190
8191         switch (if_type) {
8192         case LPFC_SLI_INTF_IF_TYPE_0:
8193                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8194                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8195                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8196                 break;
8197         case LPFC_SLI_INTF_IF_TYPE_2:
8198                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8199                 break;
8200         case LPFC_SLI_INTF_IF_TYPE_1:
8201         default:
8202                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8203                            "FATAL - unsupported SLI4 interface type - %d\n",
8204                            if_type);
8205                 break;
8206         }
8207 }
8208
8209 /**
8210  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8211  * @phba: pointer to lpfc hba data structure.
8212  *
8213  * This routine is invoked to enable the MSI-X interrupt vectors to device
8214  * with SLI-3 interface specs. The kernel function pci_enable_msix() is
8215  * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
8216  * invoked, enables either all or nothing, depending on the current
8217  * availability of PCI vector resources. The device driver is responsible
8218  * for calling the individual request_irq() to register each MSI-X vector
8219  * with a interrupt handler, which is done in this function. Note that
8220  * later when device is unloading, the driver should always call free_irq()
8221  * on all MSI-X vectors it has done request_irq() on before calling
8222  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8223  * will be left with MSI-X enabled and leaks its vectors.
8224  *
8225  * Return codes
8226  *   0 - successful
8227  *   other values - error
8228  **/
8229 static int
8230 lpfc_sli_enable_msix(struct lpfc_hba *phba)
8231 {
8232         int rc, i;
8233         LPFC_MBOXQ_t *pmb;
8234
8235         /* Set up MSI-X multi-message vectors */
8236         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8237                 phba->msix_entries[i].entry = i;
8238
8239         /* Configure MSI-X capability structure */
8240         rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
8241                                 ARRAY_SIZE(phba->msix_entries));
8242         if (rc) {
8243                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8244                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
8245                 goto msi_fail_out;
8246         }
8247         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8248                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8249                                 "0477 MSI-X entry[%d]: vector=x%x "
8250                                 "message=%d\n", i,
8251                                 phba->msix_entries[i].vector,
8252                                 phba->msix_entries[i].entry);
8253         /*
8254          * Assign MSI-X vectors to interrupt handlers
8255          */
8256
8257         /* vector-0 is associated to slow-path handler */
8258         rc = request_irq(phba->msix_entries[0].vector,
8259                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
8260                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
8261         if (rc) {
8262                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8263                                 "0421 MSI-X slow-path request_irq failed "
8264                                 "(%d)\n", rc);
8265                 goto msi_fail_out;
8266         }
8267
8268         /* vector-1 is associated to fast-path handler */
8269         rc = request_irq(phba->msix_entries[1].vector,
8270                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
8271                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
8272
8273         if (rc) {
8274                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8275                                 "0429 MSI-X fast-path request_irq failed "
8276                                 "(%d)\n", rc);
8277                 goto irq_fail_out;
8278         }
8279
8280         /*
8281          * Configure HBA MSI-X attention conditions to messages
8282          */
8283         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8284
8285         if (!pmb) {
8286                 rc = -ENOMEM;
8287                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8288                                 "0474 Unable to allocate memory for issuing "
8289                                 "MBOX_CONFIG_MSI command\n");
8290                 goto mem_fail_out;
8291         }
8292         rc = lpfc_config_msi(phba, pmb);
8293         if (rc)
8294                 goto mbx_fail_out;
8295         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8296         if (rc != MBX_SUCCESS) {
8297                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8298                                 "0351 Config MSI mailbox command failed, "
8299                                 "mbxCmd x%x, mbxStatus x%x\n",
8300                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8301                 goto mbx_fail_out;
8302         }
8303
8304         /* Free memory allocated for mailbox command */
8305         mempool_free(pmb, phba->mbox_mem_pool);
8306         return rc;
8307
8308 mbx_fail_out:
8309         /* Free memory allocated for mailbox command */
8310         mempool_free(pmb, phba->mbox_mem_pool);
8311
8312 mem_fail_out:
8313         /* free the irq already requested */
8314         free_irq(phba->msix_entries[1].vector, phba);
8315
8316 irq_fail_out:
8317         /* free the irq already requested */
8318         free_irq(phba->msix_entries[0].vector, phba);
8319
8320 msi_fail_out:
8321         /* Unconfigure MSI-X capability structure */
8322         pci_disable_msix(phba->pcidev);
8323         return rc;
8324 }
8325
8326 /**
8327  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8328  * @phba: pointer to lpfc hba data structure.
8329  *
8330  * This routine is invoked to release the MSI-X vectors and then disable the
8331  * MSI-X interrupt mode to device with SLI-3 interface spec.
8332  **/
8333 static void
8334 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8335 {
8336         int i;
8337
8338         /* Free up MSI-X multi-message vectors */
8339         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8340                 free_irq(phba->msix_entries[i].vector, phba);
8341         /* Disable MSI-X */
8342         pci_disable_msix(phba->pcidev);
8343
8344         return;
8345 }
8346
8347 /**
8348  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8349  * @phba: pointer to lpfc hba data structure.
8350  *
8351  * This routine is invoked to enable the MSI interrupt mode to device with
8352  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8353  * enable the MSI vector. The device driver is responsible for calling the
8354  * request_irq() to register MSI vector with a interrupt the handler, which
8355  * is done in this function.
8356  *
8357  * Return codes
8358  *      0 - successful
8359  *      other values - error
8360  */
8361 static int
8362 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8363 {
8364         int rc;
8365
8366         rc = pci_enable_msi(phba->pcidev);
8367         if (!rc)
8368                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8369                                 "0462 PCI enable MSI mode success.\n");
8370         else {
8371                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8372                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
8373                 return rc;
8374         }
8375
8376         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8377                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8378         if (rc) {
8379                 pci_disable_msi(phba->pcidev);
8380                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8381                                 "0478 MSI request_irq failed (%d)\n", rc);
8382         }
8383         return rc;
8384 }
8385
8386 /**
8387  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8388  * @phba: pointer to lpfc hba data structure.
8389  *
8390  * This routine is invoked to disable the MSI interrupt mode to device with
8391  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8392  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8393  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8394  * its vector.
8395  */
8396 static void
8397 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8398 {
8399         free_irq(phba->pcidev->irq, phba);
8400         pci_disable_msi(phba->pcidev);
8401         return;
8402 }
8403
8404 /**
8405  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8406  * @phba: pointer to lpfc hba data structure.
8407  *
8408  * This routine is invoked to enable device interrupt and associate driver's
8409  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8410  * spec. Depends on the interrupt mode configured to the driver, the driver
8411  * will try to fallback from the configured interrupt mode to an interrupt
8412  * mode which is supported by the platform, kernel, and device in the order
8413  * of:
8414  * MSI-X -> MSI -> IRQ.
8415  *
8416  * Return codes
8417  *   0 - successful
8418  *   other values - error
8419  **/
8420 static uint32_t
8421 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8422 {
8423         uint32_t intr_mode = LPFC_INTR_ERROR;
8424         int retval;
8425
8426         if (cfg_mode == 2) {
8427                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8428                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8429                 if (!retval) {
8430                         /* Now, try to enable MSI-X interrupt mode */
8431                         retval = lpfc_sli_enable_msix(phba);
8432                         if (!retval) {
8433                                 /* Indicate initialization to MSI-X mode */
8434                                 phba->intr_type = MSIX;
8435                                 intr_mode = 2;
8436                         }
8437                 }
8438         }
8439
8440         /* Fallback to MSI if MSI-X initialization failed */
8441         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8442                 retval = lpfc_sli_enable_msi(phba);
8443                 if (!retval) {
8444                         /* Indicate initialization to MSI mode */
8445                         phba->intr_type = MSI;
8446                         intr_mode = 1;
8447                 }
8448         }
8449
8450         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8451         if (phba->intr_type == NONE) {
8452                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8453                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8454                 if (!retval) {
8455                         /* Indicate initialization to INTx mode */
8456                         phba->intr_type = INTx;
8457                         intr_mode = 0;
8458                 }
8459         }
8460         return intr_mode;
8461 }
8462
8463 /**
8464  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8465  * @phba: pointer to lpfc hba data structure.
8466  *
8467  * This routine is invoked to disable device interrupt and disassociate the
8468  * driver's interrupt handler(s) from interrupt vector(s) to device with
8469  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8470  * release the interrupt vector(s) for the message signaled interrupt.
8471  **/
8472 static void
8473 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8474 {
8475         /* Disable the currently initialized interrupt mode */
8476         if (phba->intr_type == MSIX)
8477                 lpfc_sli_disable_msix(phba);
8478         else if (phba->intr_type == MSI)
8479                 lpfc_sli_disable_msi(phba);
8480         else if (phba->intr_type == INTx)
8481                 free_irq(phba->pcidev->irq, phba);
8482
8483         /* Reset interrupt management states */
8484         phba->intr_type = NONE;
8485         phba->sli.slistat.sli_intr = 0;
8486
8487         return;
8488 }
8489
8490 /**
8491  * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8492  * @phba: pointer to lpfc hba data structure.
8493  *
8494  * Find next available CPU to use for IRQ to CPU affinity.
8495  */
8496 static int
8497 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8498 {
8499         struct lpfc_vector_map_info *cpup;
8500         int cpu;
8501
8502         cpup = phba->sli4_hba.cpu_map;
8503         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8504                 /* CPU must be online */
8505                 if (cpu_online(cpu)) {
8506                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8507                             (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8508                             (cpup->phys_id == phys_id)) {
8509                                 return cpu;
8510                         }
8511                 }
8512                 cpup++;
8513         }
8514
8515         /*
8516          * If we get here, we have used ALL CPUs for the specific
8517          * phys_id. Now we need to clear out lpfc_used_cpu and start
8518          * reusing CPUs.
8519          */
8520
8521         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8522                 if (lpfc_used_cpu[cpu] == phys_id)
8523                         lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8524         }
8525
8526         cpup = phba->sli4_hba.cpu_map;
8527         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8528                 /* CPU must be online */
8529                 if (cpu_online(cpu)) {
8530                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8531                             (cpup->phys_id == phys_id)) {
8532                                 return cpu;
8533                         }
8534                 }
8535                 cpup++;
8536         }
8537         return LPFC_VECTOR_MAP_EMPTY;
8538 }
8539
8540 /**
8541  * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8542  * @phba:       pointer to lpfc hba data structure.
8543  * @vectors:    number of HBA vectors
8544  *
8545  * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8546  * affinization across multple physical CPUs (numa nodes).
8547  * In addition, this routine will assign an IO channel for each CPU
8548  * to use when issuing I/Os.
8549  */
8550 static int
8551 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8552 {
8553         int i, idx, saved_chann, used_chann, cpu, phys_id;
8554         int max_phys_id, min_phys_id;
8555         int num_io_channel, first_cpu, chan;
8556         struct lpfc_vector_map_info *cpup;
8557 #ifdef CONFIG_X86
8558         struct cpuinfo_x86 *cpuinfo;
8559 #endif
8560         struct cpumask *mask;
8561         uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8562
8563         /* If there is no mapping, just return */
8564         if (!phba->cfg_fcp_cpu_map)
8565                 return 1;
8566
8567         /* Init cpu_map array */
8568         memset(phba->sli4_hba.cpu_map, 0xff,
8569                (sizeof(struct lpfc_vector_map_info) *
8570                 phba->sli4_hba.num_present_cpu));
8571
8572         max_phys_id = 0;
8573         min_phys_id = 0xff;
8574         phys_id = 0;
8575         num_io_channel = 0;
8576         first_cpu = LPFC_VECTOR_MAP_EMPTY;
8577
8578         /* Update CPU map with physical id and core id of each CPU */
8579         cpup = phba->sli4_hba.cpu_map;
8580         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8581 #ifdef CONFIG_X86
8582                 cpuinfo = &cpu_data(cpu);
8583                 cpup->phys_id = cpuinfo->phys_proc_id;
8584                 cpup->core_id = cpuinfo->cpu_core_id;
8585 #else
8586                 /* No distinction between CPUs for other platforms */
8587                 cpup->phys_id = 0;
8588                 cpup->core_id = 0;
8589 #endif
8590
8591                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8592                                 "3328 CPU physid %d coreid %d\n",
8593                                 cpup->phys_id, cpup->core_id);
8594
8595                 if (cpup->phys_id > max_phys_id)
8596                         max_phys_id = cpup->phys_id;
8597                 if (cpup->phys_id < min_phys_id)
8598                         min_phys_id = cpup->phys_id;
8599                 cpup++;
8600         }
8601
8602         phys_id = min_phys_id;
8603         /* Now associate the HBA vectors with specific CPUs */
8604         for (idx = 0; idx < vectors; idx++) {
8605                 cpup = phba->sli4_hba.cpu_map;
8606                 cpu = lpfc_find_next_cpu(phba, phys_id);
8607                 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8608
8609                         /* Try for all phys_id's */
8610                         for (i = 1; i < max_phys_id; i++) {
8611                                 phys_id++;
8612                                 if (phys_id > max_phys_id)
8613                                         phys_id = min_phys_id;
8614                                 cpu = lpfc_find_next_cpu(phba, phys_id);
8615                                 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8616                                         continue;
8617                                 goto found;
8618                         }
8619
8620                         /* Use round robin for scheduling */
8621                         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN;
8622                         chan = 0;
8623                         cpup = phba->sli4_hba.cpu_map;
8624                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
8625                                 cpup->channel_id = chan;
8626                                 cpup++;
8627                                 chan++;
8628                                 if (chan >= phba->cfg_fcp_io_channel)
8629                                         chan = 0;
8630                         }
8631
8632                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8633                                         "3329 Cannot set affinity:"
8634                                         "Error mapping vector %d (%d)\n",
8635                                         idx, vectors);
8636                         return 0;
8637                 }
8638 found:
8639                 cpup += cpu;
8640                 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8641                         lpfc_used_cpu[cpu] = phys_id;
8642
8643                 /* Associate vector with selected CPU */
8644                 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8645
8646                 /* Associate IO channel with selected CPU */
8647                 cpup->channel_id = idx;
8648                 num_io_channel++;
8649
8650                 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8651                         first_cpu = cpu;
8652
8653                 /* Now affinitize to the selected CPU */
8654                 mask = &cpup->maskbits;
8655                 cpumask_clear(mask);
8656                 cpumask_set_cpu(cpu, mask);
8657                 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8658                                           vector, mask);
8659
8660                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8661                                 "3330 Set Affinity: CPU %d channel %d "
8662                                 "irq %d (%x)\n",
8663                                 cpu, cpup->channel_id,
8664                                 phba->sli4_hba.msix_entries[idx].vector, i);
8665
8666                 /* Spread vector mapping across multple physical CPU nodes */
8667                 phys_id++;
8668                 if (phys_id > max_phys_id)
8669                         phys_id = min_phys_id;
8670         }
8671
8672         /*
8673          * Finally fill in the IO channel for any remaining CPUs.
8674          * At this point, all IO channels have been assigned to a specific
8675          * MSIx vector, mapped to a specific CPU.
8676          * Base the remaining IO channel assigned, to IO channels already
8677          * assigned to other CPUs on the same phys_id.
8678          */
8679         for (i = min_phys_id; i <= max_phys_id; i++) {
8680                 /*
8681                  * If there are no io channels already mapped to
8682                  * this phys_id, just round robin thru the io_channels.
8683                  * Setup chann[] for round robin.
8684                  */
8685                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8686                         chann[idx] = idx;
8687
8688                 saved_chann = 0;
8689                 used_chann = 0;
8690
8691                 /*
8692                  * First build a list of IO channels already assigned
8693                  * to this phys_id before reassigning the same IO
8694                  * channels to the remaining CPUs.
8695                  */
8696                 cpup = phba->sli4_hba.cpu_map;
8697                 cpu = first_cpu;
8698                 cpup += cpu;
8699                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8700                      idx++) {
8701                         if (cpup->phys_id == i) {
8702                                 /*
8703                                  * Save any IO channels that are
8704                                  * already mapped to this phys_id.
8705                                  */
8706                                 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8707                                         chann[saved_chann] =
8708                                                 cpup->channel_id;
8709                                         saved_chann++;
8710                                         goto out;
8711                                 }
8712
8713                                 /* See if we are using round-robin */
8714                                 if (saved_chann == 0)
8715                                         saved_chann =
8716                                                 phba->cfg_fcp_io_channel;
8717
8718                                 /* Associate next IO channel with CPU */
8719                                 cpup->channel_id = chann[used_chann];
8720                                 num_io_channel++;
8721                                 used_chann++;
8722                                 if (used_chann == saved_chann)
8723                                         used_chann = 0;
8724
8725                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8726                                                 "3331 Set IO_CHANN "
8727                                                 "CPU %d channel %d\n",
8728                                                 idx, cpup->channel_id);
8729                         }
8730 out:
8731                         cpu++;
8732                         if (cpu >= phba->sli4_hba.num_present_cpu) {
8733                                 cpup = phba->sli4_hba.cpu_map;
8734                                 cpu = 0;
8735                         } else {
8736                                 cpup++;
8737                         }
8738                 }
8739         }
8740
8741         if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
8742                 cpup = phba->sli4_hba.cpu_map;
8743                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
8744                         if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
8745                                 cpup->channel_id = 0;
8746                                 num_io_channel++;
8747
8748                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8749                                                 "3332 Assign IO_CHANN "
8750                                                 "CPU %d channel %d\n",
8751                                                 idx, cpup->channel_id);
8752                         }
8753                         cpup++;
8754                 }
8755         }
8756
8757         /* Sanity check */
8758         if (num_io_channel != phba->sli4_hba.num_present_cpu)
8759                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8760                                 "3333 Set affinity mismatch:"
8761                                 "%d chann != %d cpus: %d vectors\n",
8762                                 num_io_channel, phba->sli4_hba.num_present_cpu,
8763                                 vectors);
8764
8765         /* Enable using cpu affinity for scheduling */
8766         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
8767         return 1;
8768 }
8769
8770
8771 /**
8772  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8773  * @phba: pointer to lpfc hba data structure.
8774  *
8775  * This routine is invoked to enable the MSI-X interrupt vectors to device
8776  * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
8777  * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
8778  * enables either all or nothing, depending on the current availability of
8779  * PCI vector resources. The device driver is responsible for calling the
8780  * individual request_irq() to register each MSI-X vector with a interrupt
8781  * handler, which is done in this function. Note that later when device is
8782  * unloading, the driver should always call free_irq() on all MSI-X vectors
8783  * it has done request_irq() on before calling pci_disable_msix(). Failure
8784  * to do so results in a BUG_ON() and a device will be left with MSI-X
8785  * enabled and leaks its vectors.
8786  *
8787  * Return codes
8788  * 0 - successful
8789  * other values - error
8790  **/
8791 static int
8792 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8793 {
8794         int vectors, rc, index;
8795
8796         /* Set up MSI-X multi-message vectors */
8797         for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8798                 phba->sli4_hba.msix_entries[index].entry = index;
8799
8800         /* Configure MSI-X capability structure */
8801         vectors = phba->cfg_fcp_io_channel;
8802         if (phba->cfg_fof) {
8803                 phba->sli4_hba.msix_entries[index].entry = index;
8804                 vectors++;
8805         }
8806 enable_msix_vectors:
8807         rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
8808                              vectors);
8809         if (rc > 1) {
8810                 vectors = rc;
8811                 goto enable_msix_vectors;
8812         } else if (rc) {
8813                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8814                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
8815                 goto msi_fail_out;
8816         }
8817
8818         /* Log MSI-X vector assignment */
8819         for (index = 0; index < vectors; index++)
8820                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8821                                 "0489 MSI-X entry[%d]: vector=x%x "
8822                                 "message=%d\n", index,
8823                                 phba->sli4_hba.msix_entries[index].vector,
8824                                 phba->sli4_hba.msix_entries[index].entry);
8825
8826         /* Assign MSI-X vectors to interrupt handlers */
8827         for (index = 0; index < vectors; index++) {
8828                 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8829                 sprintf((char *)&phba->sli4_hba.handler_name[index],
8830                          LPFC_DRIVER_HANDLER_NAME"%d", index);
8831
8832                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8833                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8834                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8835                 if (phba->cfg_fof && (index == (vectors - 1)))
8836                         rc = request_irq(
8837                                 phba->sli4_hba.msix_entries[index].vector,
8838                                  &lpfc_sli4_fof_intr_handler, IRQF_SHARED,
8839                                  (char *)&phba->sli4_hba.handler_name[index],
8840                                  &phba->sli4_hba.fcp_eq_hdl[index]);
8841                 else
8842                         rc = request_irq(
8843                                 phba->sli4_hba.msix_entries[index].vector,
8844                                  &lpfc_sli4_hba_intr_handler, IRQF_SHARED,
8845                                  (char *)&phba->sli4_hba.handler_name[index],
8846                                  &phba->sli4_hba.fcp_eq_hdl[index]);
8847                 if (rc) {
8848                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8849                                         "0486 MSI-X fast-path (%d) "
8850                                         "request_irq failed (%d)\n", index, rc);
8851                         goto cfg_fail_out;
8852                 }
8853         }
8854
8855         if (phba->cfg_fof)
8856                 vectors--;
8857
8858         if (vectors != phba->cfg_fcp_io_channel) {
8859                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8860                                 "3238 Reducing IO channels to match number of "
8861                                 "MSI-X vectors, requested %d got %d\n",
8862                                 phba->cfg_fcp_io_channel, vectors);
8863                 phba->cfg_fcp_io_channel = vectors;
8864         }
8865
8866         lpfc_sli4_set_affinity(phba, vectors);
8867         return rc;
8868
8869 cfg_fail_out:
8870         /* free the irq already requested */
8871         for (--index; index >= 0; index--) {
8872                 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
8873                                           vector, NULL);
8874                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8875                          &phba->sli4_hba.fcp_eq_hdl[index]);
8876         }
8877
8878 msi_fail_out:
8879         /* Unconfigure MSI-X capability structure */
8880         pci_disable_msix(phba->pcidev);
8881         return rc;
8882 }
8883
8884 /**
8885  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
8886  * @phba: pointer to lpfc hba data structure.
8887  *
8888  * This routine is invoked to release the MSI-X vectors and then disable the
8889  * MSI-X interrupt mode to device with SLI-4 interface spec.
8890  **/
8891 static void
8892 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
8893 {
8894         int index;
8895
8896         /* Free up MSI-X multi-message vectors */
8897         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
8898                 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
8899                                           vector, NULL);
8900                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8901                          &phba->sli4_hba.fcp_eq_hdl[index]);
8902         }
8903         if (phba->cfg_fof) {
8904                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8905                          &phba->sli4_hba.fcp_eq_hdl[index]);
8906         }
8907         /* Disable MSI-X */
8908         pci_disable_msix(phba->pcidev);
8909
8910         return;
8911 }
8912
8913 /**
8914  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
8915  * @phba: pointer to lpfc hba data structure.
8916  *
8917  * This routine is invoked to enable the MSI interrupt mode to device with
8918  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
8919  * to enable the MSI vector. The device driver is responsible for calling
8920  * the request_irq() to register MSI vector with a interrupt the handler,
8921  * which is done in this function.
8922  *
8923  * Return codes
8924  *      0 - successful
8925  *      other values - error
8926  **/
8927 static int
8928 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
8929 {
8930         int rc, index;
8931
8932         rc = pci_enable_msi(phba->pcidev);
8933         if (!rc)
8934                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8935                                 "0487 PCI enable MSI mode success.\n");
8936         else {
8937                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8938                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
8939                 return rc;
8940         }
8941
8942         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8943                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8944         if (rc) {
8945                 pci_disable_msi(phba->pcidev);
8946                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8947                                 "0490 MSI request_irq failed (%d)\n", rc);
8948                 return rc;
8949         }
8950
8951         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
8952                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8953                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8954         }
8955
8956         if (phba->cfg_fof) {
8957                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8958                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8959         }
8960         return 0;
8961 }
8962
8963 /**
8964  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
8965  * @phba: pointer to lpfc hba data structure.
8966  *
8967  * This routine is invoked to disable the MSI interrupt mode to device with
8968  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
8969  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8970  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8971  * its vector.
8972  **/
8973 static void
8974 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
8975 {
8976         free_irq(phba->pcidev->irq, phba);
8977         pci_disable_msi(phba->pcidev);
8978         return;
8979 }
8980
8981 /**
8982  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
8983  * @phba: pointer to lpfc hba data structure.
8984  *
8985  * This routine is invoked to enable device interrupt and associate driver's
8986  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
8987  * interface spec. Depends on the interrupt mode configured to the driver,
8988  * the driver will try to fallback from the configured interrupt mode to an
8989  * interrupt mode which is supported by the platform, kernel, and device in
8990  * the order of:
8991  * MSI-X -> MSI -> IRQ.
8992  *
8993  * Return codes
8994  *      0 - successful
8995  *      other values - error
8996  **/
8997 static uint32_t
8998 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8999 {
9000         uint32_t intr_mode = LPFC_INTR_ERROR;
9001         int retval, index;
9002
9003         if (cfg_mode == 2) {
9004                 /* Preparation before conf_msi mbox cmd */
9005                 retval = 0;
9006                 if (!retval) {
9007                         /* Now, try to enable MSI-X interrupt mode */
9008                         retval = lpfc_sli4_enable_msix(phba);
9009                         if (!retval) {
9010                                 /* Indicate initialization to MSI-X mode */
9011                                 phba->intr_type = MSIX;
9012                                 intr_mode = 2;
9013                         }
9014                 }
9015         }
9016
9017         /* Fallback to MSI if MSI-X initialization failed */
9018         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9019                 retval = lpfc_sli4_enable_msi(phba);
9020                 if (!retval) {
9021                         /* Indicate initialization to MSI mode */
9022                         phba->intr_type = MSI;
9023                         intr_mode = 1;
9024                 }
9025         }
9026
9027         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9028         if (phba->intr_type == NONE) {
9029                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9030                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9031                 if (!retval) {
9032                         /* Indicate initialization to INTx mode */
9033                         phba->intr_type = INTx;
9034                         intr_mode = 0;
9035                         for (index = 0; index < phba->cfg_fcp_io_channel;
9036                              index++) {
9037                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9038                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9039                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9040                                         fcp_eq_in_use, 1);
9041                         }
9042                         if (phba->cfg_fof) {
9043                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9044                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9045                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9046                                         fcp_eq_in_use, 1);
9047                         }
9048                 }
9049         }
9050         return intr_mode;
9051 }
9052
9053 /**
9054  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
9055  * @phba: pointer to lpfc hba data structure.
9056  *
9057  * This routine is invoked to disable device interrupt and disassociate
9058  * the driver's interrupt handler(s) from interrupt vector(s) to device
9059  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
9060  * will release the interrupt vector(s) for the message signaled interrupt.
9061  **/
9062 static void
9063 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
9064 {
9065         /* Disable the currently initialized interrupt mode */
9066         if (phba->intr_type == MSIX)
9067                 lpfc_sli4_disable_msix(phba);
9068         else if (phba->intr_type == MSI)
9069                 lpfc_sli4_disable_msi(phba);
9070         else if (phba->intr_type == INTx)
9071                 free_irq(phba->pcidev->irq, phba);
9072
9073         /* Reset interrupt management states */
9074         phba->intr_type = NONE;
9075         phba->sli.slistat.sli_intr = 0;
9076
9077         return;
9078 }
9079
9080 /**
9081  * lpfc_unset_hba - Unset SLI3 hba device initialization
9082  * @phba: pointer to lpfc hba data structure.
9083  *
9084  * This routine is invoked to unset the HBA device initialization steps to
9085  * a device with SLI-3 interface spec.
9086  **/
9087 static void
9088 lpfc_unset_hba(struct lpfc_hba *phba)
9089 {
9090         struct lpfc_vport *vport = phba->pport;
9091         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
9092
9093         spin_lock_irq(shost->host_lock);
9094         vport->load_flag |= FC_UNLOADING;
9095         spin_unlock_irq(shost->host_lock);
9096
9097         kfree(phba->vpi_bmask);
9098         kfree(phba->vpi_ids);
9099
9100         lpfc_stop_hba_timers(phba);
9101
9102         phba->pport->work_port_events = 0;
9103
9104         lpfc_sli_hba_down(phba);
9105
9106         lpfc_sli_brdrestart(phba);
9107
9108         lpfc_sli_disable_intr(phba);
9109
9110         return;
9111 }
9112
9113 /**
9114  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
9115  * @phba: Pointer to HBA context object.
9116  *
9117  * This function is called in the SLI4 code path to wait for completion
9118  * of device's XRIs exchange busy. It will check the XRI exchange busy
9119  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
9120  * that, it will check the XRI exchange busy on outstanding FCP and ELS
9121  * I/Os every 30 seconds, log error message, and wait forever. Only when
9122  * all XRI exchange busy complete, the driver unload shall proceed with
9123  * invoking the function reset ioctl mailbox command to the CNA and the
9124  * the rest of the driver unload resource release.
9125  **/
9126 static void
9127 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
9128 {
9129         int wait_time = 0;
9130         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9131         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9132
9133         while (!fcp_xri_cmpl || !els_xri_cmpl) {
9134                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
9135                         if (!fcp_xri_cmpl)
9136                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9137                                                 "2877 FCP XRI exchange busy "
9138                                                 "wait time: %d seconds.\n",
9139                                                 wait_time/1000);
9140                         if (!els_xri_cmpl)
9141                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9142                                                 "2878 ELS XRI exchange busy "
9143                                                 "wait time: %d seconds.\n",
9144                                                 wait_time/1000);
9145                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
9146                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
9147                 } else {
9148                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
9149                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
9150                 }
9151                 fcp_xri_cmpl =
9152                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9153                 els_xri_cmpl =
9154                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9155         }
9156 }
9157
9158 /**
9159  * lpfc_sli4_hba_unset - Unset the fcoe hba
9160  * @phba: Pointer to HBA context object.
9161  *
9162  * This function is called in the SLI4 code path to reset the HBA's FCoE
9163  * function. The caller is not required to hold any lock. This routine
9164  * issues PCI function reset mailbox command to reset the FCoE function.
9165  * At the end of the function, it calls lpfc_hba_down_post function to
9166  * free any pending commands.
9167  **/
9168 static void
9169 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
9170 {
9171         int wait_cnt = 0;
9172         LPFC_MBOXQ_t *mboxq;
9173         struct pci_dev *pdev = phba->pcidev;
9174
9175         lpfc_stop_hba_timers(phba);
9176         phba->sli4_hba.intr_enable = 0;
9177
9178         /*
9179          * Gracefully wait out the potential current outstanding asynchronous
9180          * mailbox command.
9181          */
9182
9183         /* First, block any pending async mailbox command from posted */
9184         spin_lock_irq(&phba->hbalock);
9185         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
9186         spin_unlock_irq(&phba->hbalock);
9187         /* Now, trying to wait it out if we can */
9188         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9189                 msleep(10);
9190                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
9191                         break;
9192         }
9193         /* Forcefully release the outstanding mailbox command if timed out */
9194         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9195                 spin_lock_irq(&phba->hbalock);
9196                 mboxq = phba->sli.mbox_active;
9197                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9198                 __lpfc_mbox_cmpl_put(phba, mboxq);
9199                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9200                 phba->sli.mbox_active = NULL;
9201                 spin_unlock_irq(&phba->hbalock);
9202         }
9203
9204         /* Abort all iocbs associated with the hba */
9205         lpfc_sli_hba_iocb_abort(phba);
9206
9207         /* Wait for completion of device XRI exchange busy */
9208         lpfc_sli4_xri_exchange_busy_wait(phba);
9209
9210         /* Disable PCI subsystem interrupt */
9211         lpfc_sli4_disable_intr(phba);
9212
9213         /* Disable SR-IOV if enabled */
9214         if (phba->cfg_sriov_nr_virtfn)
9215                 pci_disable_sriov(pdev);
9216
9217         /* Stop kthread signal shall trigger work_done one more time */
9218         kthread_stop(phba->worker_thread);
9219
9220         /* Reset SLI4 HBA FCoE function */
9221         lpfc_pci_function_reset(phba);
9222         lpfc_sli4_queue_destroy(phba);
9223
9224         /* Stop the SLI4 device port */
9225         phba->pport->work_port_events = 0;
9226 }
9227
9228  /**
9229  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9230  * @phba: Pointer to HBA context object.
9231  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9232  *
9233  * This function is called in the SLI4 code path to read the port's
9234  * sli4 capabilities.
9235  *
9236  * This function may be be called from any context that can block-wait
9237  * for the completion.  The expectation is that this routine is called
9238  * typically from probe_one or from the online routine.
9239  **/
9240 int
9241 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9242 {
9243         int rc;
9244         struct lpfc_mqe *mqe;
9245         struct lpfc_pc_sli4_params *sli4_params;
9246         uint32_t mbox_tmo;
9247
9248         rc = 0;
9249         mqe = &mboxq->u.mqe;
9250
9251         /* Read the port's SLI4 Parameters port capabilities */
9252         lpfc_pc_sli4_params(mboxq);
9253         if (!phba->sli4_hba.intr_enable)
9254                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9255         else {
9256                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9257                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9258         }
9259
9260         if (unlikely(rc))
9261                 return 1;
9262
9263         sli4_params = &phba->sli4_hba.pc_sli4_params;
9264         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9265         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9266         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9267         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9268                                              &mqe->un.sli4_params);
9269         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9270                                              &mqe->un.sli4_params);
9271         sli4_params->proto_types = mqe->un.sli4_params.word3;
9272         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9273         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9274         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9275         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9276         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9277         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9278         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9279         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9280         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9281         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9282         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9283         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9284         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9285         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9286         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9287         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9288         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9289         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9290         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9291         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
9292
9293         /* Make sure that sge_supp_len can be handled by the driver */
9294         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9295                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9296
9297         return rc;
9298 }
9299
9300 /**
9301  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9302  * @phba: Pointer to HBA context object.
9303  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9304  *
9305  * This function is called in the SLI4 code path to read the port's
9306  * sli4 capabilities.
9307  *
9308  * This function may be be called from any context that can block-wait
9309  * for the completion.  The expectation is that this routine is called
9310  * typically from probe_one or from the online routine.
9311  **/
9312 int
9313 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9314 {
9315         int rc;
9316         struct lpfc_mqe *mqe = &mboxq->u.mqe;
9317         struct lpfc_pc_sli4_params *sli4_params;
9318         uint32_t mbox_tmo;
9319         int length;
9320         struct lpfc_sli4_parameters *mbx_sli4_parameters;
9321
9322         /*
9323          * By default, the driver assumes the SLI4 port requires RPI
9324          * header postings.  The SLI4_PARAM response will correct this
9325          * assumption.
9326          */
9327         phba->sli4_hba.rpi_hdrs_in_use = 1;
9328
9329         /* Read the port's SLI4 Config Parameters */
9330         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9331                   sizeof(struct lpfc_sli4_cfg_mhdr));
9332         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9333                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9334                          length, LPFC_SLI4_MBX_EMBED);
9335         if (!phba->sli4_hba.intr_enable)
9336                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9337         else {
9338                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9339                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9340         }
9341         if (unlikely(rc))
9342                 return rc;
9343         sli4_params = &phba->sli4_hba.pc_sli4_params;
9344         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9345         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9346         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9347         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9348         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9349                                              mbx_sli4_parameters);
9350         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9351                                              mbx_sli4_parameters);
9352         if (bf_get(cfg_phwq, mbx_sli4_parameters))
9353                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9354         else
9355                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9356         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9357         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
9358         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
9359         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9360         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9361         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9362         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
9363         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
9364         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9365                                             mbx_sli4_parameters);
9366         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9367                                            mbx_sli4_parameters);
9368         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9369         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
9370
9371         /* Make sure that sge_supp_len can be handled by the driver */
9372         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9373                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9374
9375         return 0;
9376 }
9377
9378 /**
9379  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9380  * @pdev: pointer to PCI device
9381  * @pid: pointer to PCI device identifier
9382  *
9383  * This routine is to be called to attach a device with SLI-3 interface spec
9384  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9385  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9386  * information of the device and driver to see if the driver state that it can
9387  * support this kind of device. If the match is successful, the driver core
9388  * invokes this routine. If this routine determines it can claim the HBA, it
9389  * does all the initialization that it needs to do to handle the HBA properly.
9390  *
9391  * Return code
9392  *      0 - driver can claim the device
9393  *      negative value - driver can not claim the device
9394  **/
9395 static int
9396 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9397 {
9398         struct lpfc_hba   *phba;
9399         struct lpfc_vport *vport = NULL;
9400         struct Scsi_Host  *shost = NULL;
9401         int error;
9402         uint32_t cfg_mode, intr_mode;
9403
9404         /* Allocate memory for HBA structure */
9405         phba = lpfc_hba_alloc(pdev);
9406         if (!phba)
9407                 return -ENOMEM;
9408
9409         /* Perform generic PCI device enabling operation */
9410         error = lpfc_enable_pci_dev(phba);
9411         if (error)
9412                 goto out_free_phba;
9413
9414         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9415         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9416         if (error)
9417                 goto out_disable_pci_dev;
9418
9419         /* Set up SLI-3 specific device PCI memory space */
9420         error = lpfc_sli_pci_mem_setup(phba);
9421         if (error) {
9422                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9423                                 "1402 Failed to set up pci memory space.\n");
9424                 goto out_disable_pci_dev;
9425         }
9426
9427         /* Set up phase-1 common device driver resources */
9428         error = lpfc_setup_driver_resource_phase1(phba);
9429         if (error) {
9430                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9431                                 "1403 Failed to set up driver resource.\n");
9432                 goto out_unset_pci_mem_s3;
9433         }
9434
9435         /* Set up SLI-3 specific device driver resources */
9436         error = lpfc_sli_driver_resource_setup(phba);
9437         if (error) {
9438                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9439                                 "1404 Failed to set up driver resource.\n");
9440                 goto out_unset_pci_mem_s3;
9441         }
9442
9443         /* Initialize and populate the iocb list per host */
9444         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9445         if (error) {
9446                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9447                                 "1405 Failed to initialize iocb list.\n");
9448                 goto out_unset_driver_resource_s3;
9449         }
9450
9451         /* Set up common device driver resources */
9452         error = lpfc_setup_driver_resource_phase2(phba);
9453         if (error) {
9454                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9455                                 "1406 Failed to set up driver resource.\n");
9456                 goto out_free_iocb_list;
9457         }
9458
9459         /* Get the default values for Model Name and Description */
9460         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9461
9462         /* Create SCSI host to the physical port */
9463         error = lpfc_create_shost(phba);
9464         if (error) {
9465                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9466                                 "1407 Failed to create scsi host.\n");
9467                 goto out_unset_driver_resource;
9468         }
9469
9470         /* Configure sysfs attributes */
9471         vport = phba->pport;
9472         error = lpfc_alloc_sysfs_attr(vport);
9473         if (error) {
9474                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9475                                 "1476 Failed to allocate sysfs attr\n");
9476                 goto out_destroy_shost;
9477         }
9478
9479         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9480         /* Now, trying to enable interrupt and bring up the device */
9481         cfg_mode = phba->cfg_use_msi;
9482         while (true) {
9483                 /* Put device to a known state before enabling interrupt */
9484                 lpfc_stop_port(phba);
9485                 /* Configure and enable interrupt */
9486                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9487                 if (intr_mode == LPFC_INTR_ERROR) {
9488                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9489                                         "0431 Failed to enable interrupt.\n");
9490                         error = -ENODEV;
9491                         goto out_free_sysfs_attr;
9492                 }
9493                 /* SLI-3 HBA setup */
9494                 if (lpfc_sli_hba_setup(phba)) {
9495                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9496                                         "1477 Failed to set up hba\n");
9497                         error = -ENODEV;
9498                         goto out_remove_device;
9499                 }
9500
9501                 /* Wait 50ms for the interrupts of previous mailbox commands */
9502                 msleep(50);
9503                 /* Check active interrupts on message signaled interrupts */
9504                 if (intr_mode == 0 ||
9505                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9506                         /* Log the current active interrupt mode */
9507                         phba->intr_mode = intr_mode;
9508                         lpfc_log_intr_mode(phba, intr_mode);
9509                         break;
9510                 } else {
9511                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9512                                         "0447 Configure interrupt mode (%d) "
9513                                         "failed active interrupt test.\n",
9514                                         intr_mode);
9515                         /* Disable the current interrupt mode */
9516                         lpfc_sli_disable_intr(phba);
9517                         /* Try next level of interrupt mode */
9518                         cfg_mode = --intr_mode;
9519                 }
9520         }
9521
9522         /* Perform post initialization setup */
9523         lpfc_post_init_setup(phba);
9524
9525         /* Check if there are static vports to be created. */
9526         lpfc_create_static_vport(phba);
9527
9528         return 0;
9529
9530 out_remove_device:
9531         lpfc_unset_hba(phba);
9532 out_free_sysfs_attr:
9533         lpfc_free_sysfs_attr(vport);
9534 out_destroy_shost:
9535         lpfc_destroy_shost(phba);
9536 out_unset_driver_resource:
9537         lpfc_unset_driver_resource_phase2(phba);
9538 out_free_iocb_list:
9539         lpfc_free_iocb_list(phba);
9540 out_unset_driver_resource_s3:
9541         lpfc_sli_driver_resource_unset(phba);
9542 out_unset_pci_mem_s3:
9543         lpfc_sli_pci_mem_unset(phba);
9544 out_disable_pci_dev:
9545         lpfc_disable_pci_dev(phba);
9546         if (shost)
9547                 scsi_host_put(shost);
9548 out_free_phba:
9549         lpfc_hba_free(phba);
9550         return error;
9551 }
9552
9553 /**
9554  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9555  * @pdev: pointer to PCI device
9556  *
9557  * This routine is to be called to disattach a device with SLI-3 interface
9558  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9559  * removed from PCI bus, it performs all the necessary cleanup for the HBA
9560  * device to be removed from the PCI subsystem properly.
9561  **/
9562 static void
9563 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9564 {
9565         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
9566         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9567         struct lpfc_vport **vports;
9568         struct lpfc_hba   *phba = vport->phba;
9569         int i;
9570         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
9571
9572         spin_lock_irq(&phba->hbalock);
9573         vport->load_flag |= FC_UNLOADING;
9574         spin_unlock_irq(&phba->hbalock);
9575
9576         lpfc_free_sysfs_attr(vport);
9577
9578         /* Release all the vports against this physical port */
9579         vports = lpfc_create_vport_work_array(phba);
9580         if (vports != NULL)
9581                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9582                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9583                                 continue;
9584                         fc_vport_terminate(vports[i]->fc_vport);
9585                 }
9586         lpfc_destroy_vport_work_array(phba, vports);
9587
9588         /* Remove FC host and then SCSI host with the physical port */
9589         fc_remove_host(shost);
9590         scsi_remove_host(shost);
9591         lpfc_cleanup(vport);
9592
9593         /*
9594          * Bring down the SLI Layer. This step disable all interrupts,
9595          * clears the rings, discards all mailbox commands, and resets
9596          * the HBA.
9597          */
9598
9599         /* HBA interrupt will be disabled after this call */
9600         lpfc_sli_hba_down(phba);
9601         /* Stop kthread signal shall trigger work_done one more time */
9602         kthread_stop(phba->worker_thread);
9603         /* Final cleanup of txcmplq and reset the HBA */
9604         lpfc_sli_brdrestart(phba);
9605
9606         kfree(phba->vpi_bmask);
9607         kfree(phba->vpi_ids);
9608
9609         lpfc_stop_hba_timers(phba);
9610         spin_lock_irq(&phba->hbalock);
9611         list_del_init(&vport->listentry);
9612         spin_unlock_irq(&phba->hbalock);
9613
9614         lpfc_debugfs_terminate(vport);
9615
9616         /* Disable SR-IOV if enabled */
9617         if (phba->cfg_sriov_nr_virtfn)
9618                 pci_disable_sriov(pdev);
9619
9620         /* Disable interrupt */
9621         lpfc_sli_disable_intr(phba);
9622
9623         scsi_host_put(shost);
9624
9625         /*
9626          * Call scsi_free before mem_free since scsi bufs are released to their
9627          * corresponding pools here.
9628          */
9629         lpfc_scsi_free(phba);
9630         lpfc_mem_free_all(phba);
9631
9632         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9633                           phba->hbqslimp.virt, phba->hbqslimp.phys);
9634
9635         /* Free resources associated with SLI2 interface */
9636         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9637                           phba->slim2p.virt, phba->slim2p.phys);
9638
9639         /* unmap adapter SLIM and Control Registers */
9640         iounmap(phba->ctrl_regs_memmap_p);
9641         iounmap(phba->slim_memmap_p);
9642
9643         lpfc_hba_free(phba);
9644
9645         pci_release_selected_regions(pdev, bars);
9646         pci_disable_device(pdev);
9647 }
9648
9649 /**
9650  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9651  * @pdev: pointer to PCI device
9652  * @msg: power management message
9653  *
9654  * This routine is to be called from the kernel's PCI subsystem to support
9655  * system Power Management (PM) to device with SLI-3 interface spec. When
9656  * PM invokes this method, it quiesces the device by stopping the driver's
9657  * worker thread for the device, turning off device's interrupt and DMA,
9658  * and bring the device offline. Note that as the driver implements the
9659  * minimum PM requirements to a power-aware driver's PM support for the
9660  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9661  * to the suspend() method call will be treated as SUSPEND and the driver will
9662  * fully reinitialize its device during resume() method call, the driver will
9663  * set device to PCI_D3hot state in PCI config space instead of setting it
9664  * according to the @msg provided by the PM.
9665  *
9666  * Return code
9667  *      0 - driver suspended the device
9668  *      Error otherwise
9669  **/
9670 static int
9671 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9672 {
9673         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9674         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9675
9676         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9677                         "0473 PCI device Power Management suspend.\n");
9678
9679         /* Bring down the device */
9680         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9681         lpfc_offline(phba);
9682         kthread_stop(phba->worker_thread);
9683
9684         /* Disable interrupt from device */
9685         lpfc_sli_disable_intr(phba);
9686
9687         /* Save device state to PCI config space */
9688         pci_save_state(pdev);
9689         pci_set_power_state(pdev, PCI_D3hot);
9690
9691         return 0;
9692 }
9693
9694 /**
9695  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9696  * @pdev: pointer to PCI device
9697  *
9698  * This routine is to be called from the kernel's PCI subsystem to support
9699  * system Power Management (PM) to device with SLI-3 interface spec. When PM
9700  * invokes this method, it restores the device's PCI config space state and
9701  * fully reinitializes the device and brings it online. Note that as the
9702  * driver implements the minimum PM requirements to a power-aware driver's
9703  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9704  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9705  * driver will fully reinitialize its device during resume() method call,
9706  * the device will be set to PCI_D0 directly in PCI config space before
9707  * restoring the state.
9708  *
9709  * Return code
9710  *      0 - driver suspended the device
9711  *      Error otherwise
9712  **/
9713 static int
9714 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9715 {
9716         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9717         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9718         uint32_t intr_mode;
9719         int error;
9720
9721         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9722                         "0452 PCI device Power Management resume.\n");
9723
9724         /* Restore device state from PCI config space */
9725         pci_set_power_state(pdev, PCI_D0);
9726         pci_restore_state(pdev);
9727
9728         /*
9729          * As the new kernel behavior of pci_restore_state() API call clears
9730          * device saved_state flag, need to save the restored state again.
9731          */
9732         pci_save_state(pdev);
9733
9734         if (pdev->is_busmaster)
9735                 pci_set_master(pdev);
9736
9737         /* Startup the kernel thread for this host adapter. */
9738         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9739                                         "lpfc_worker_%d", phba->brd_no);
9740         if (IS_ERR(phba->worker_thread)) {
9741                 error = PTR_ERR(phba->worker_thread);
9742                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9743                                 "0434 PM resume failed to start worker "
9744                                 "thread: error=x%x.\n", error);
9745                 return error;
9746         }
9747
9748         /* Configure and enable interrupt */
9749         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9750         if (intr_mode == LPFC_INTR_ERROR) {
9751                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9752                                 "0430 PM resume Failed to enable interrupt\n");
9753                 return -EIO;
9754         } else
9755                 phba->intr_mode = intr_mode;
9756
9757         /* Restart HBA and bring it online */
9758         lpfc_sli_brdrestart(phba);
9759         lpfc_online(phba);
9760
9761         /* Log the current active interrupt mode */
9762         lpfc_log_intr_mode(phba, phba->intr_mode);
9763
9764         return 0;
9765 }
9766
9767 /**
9768  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9769  * @phba: pointer to lpfc hba data structure.
9770  *
9771  * This routine is called to prepare the SLI3 device for PCI slot recover. It
9772  * aborts all the outstanding SCSI I/Os to the pci device.
9773  **/
9774 static void
9775 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9776 {
9777         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9778                         "2723 PCI channel I/O abort preparing for recovery\n");
9779
9780         /*
9781          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9782          * and let the SCSI mid-layer to retry them to recover.
9783          */
9784         lpfc_sli_abort_fcp_rings(phba);
9785 }
9786
9787 /**
9788  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9789  * @phba: pointer to lpfc hba data structure.
9790  *
9791  * This routine is called to prepare the SLI3 device for PCI slot reset. It
9792  * disables the device interrupt and pci device, and aborts the internal FCP
9793  * pending I/Os.
9794  **/
9795 static void
9796 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9797 {
9798         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9799                         "2710 PCI channel disable preparing for reset\n");
9800
9801         /* Block any management I/Os to the device */
9802         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9803
9804         /* Block all SCSI devices' I/Os on the host */
9805         lpfc_scsi_dev_block(phba);
9806
9807         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9808         lpfc_sli_flush_fcp_rings(phba);
9809
9810         /* stop all timers */
9811         lpfc_stop_hba_timers(phba);
9812
9813         /* Disable interrupt and pci device */
9814         lpfc_sli_disable_intr(phba);
9815         pci_disable_device(phba->pcidev);
9816 }
9817
9818 /**
9819  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9820  * @phba: pointer to lpfc hba data structure.
9821  *
9822  * This routine is called to prepare the SLI3 device for PCI slot permanently
9823  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9824  * pending I/Os.
9825  **/
9826 static void
9827 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9828 {
9829         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9830                         "2711 PCI channel permanent disable for failure\n");
9831         /* Block all SCSI devices' I/Os on the host */
9832         lpfc_scsi_dev_block(phba);
9833
9834         /* stop all timers */
9835         lpfc_stop_hba_timers(phba);
9836
9837         /* Clean up all driver's outstanding SCSI I/Os */
9838         lpfc_sli_flush_fcp_rings(phba);
9839 }
9840
9841 /**
9842  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9843  * @pdev: pointer to PCI device.
9844  * @state: the current PCI connection state.
9845  *
9846  * This routine is called from the PCI subsystem for I/O error handling to
9847  * device with SLI-3 interface spec. This function is called by the PCI
9848  * subsystem after a PCI bus error affecting this device has been detected.
9849  * When this function is invoked, it will need to stop all the I/Os and
9850  * interrupt(s) to the device. Once that is done, it will return
9851  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9852  * as desired.
9853  *
9854  * Return codes
9855  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9856  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9857  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9858  **/
9859 static pci_ers_result_t
9860 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9861 {
9862         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9863         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9864
9865         switch (state) {
9866         case pci_channel_io_normal:
9867                 /* Non-fatal error, prepare for recovery */
9868                 lpfc_sli_prep_dev_for_recover(phba);
9869                 return PCI_ERS_RESULT_CAN_RECOVER;
9870         case pci_channel_io_frozen:
9871                 /* Fatal error, prepare for slot reset */
9872                 lpfc_sli_prep_dev_for_reset(phba);
9873                 return PCI_ERS_RESULT_NEED_RESET;
9874         case pci_channel_io_perm_failure:
9875                 /* Permanent failure, prepare for device down */
9876                 lpfc_sli_prep_dev_for_perm_failure(phba);
9877                 return PCI_ERS_RESULT_DISCONNECT;
9878         default:
9879                 /* Unknown state, prepare and request slot reset */
9880                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9881                                 "0472 Unknown PCI error state: x%x\n", state);
9882                 lpfc_sli_prep_dev_for_reset(phba);
9883                 return PCI_ERS_RESULT_NEED_RESET;
9884         }
9885 }
9886
9887 /**
9888  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
9889  * @pdev: pointer to PCI device.
9890  *
9891  * This routine is called from the PCI subsystem for error handling to
9892  * device with SLI-3 interface spec. This is called after PCI bus has been
9893  * reset to restart the PCI card from scratch, as if from a cold-boot.
9894  * During the PCI subsystem error recovery, after driver returns
9895  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9896  * recovery and then call this routine before calling the .resume method
9897  * to recover the device. This function will initialize the HBA device,
9898  * enable the interrupt, but it will just put the HBA to offline state
9899  * without passing any I/O traffic.
9900  *
9901  * Return codes
9902  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9903  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9904  */
9905 static pci_ers_result_t
9906 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
9907 {
9908         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9909         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9910         struct lpfc_sli *psli = &phba->sli;
9911         uint32_t intr_mode;
9912
9913         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9914         if (pci_enable_device_mem(pdev)) {
9915                 printk(KERN_ERR "lpfc: Cannot re-enable "
9916                         "PCI device after reset.\n");
9917                 return PCI_ERS_RESULT_DISCONNECT;
9918         }
9919
9920         pci_restore_state(pdev);
9921
9922         /*
9923          * As the new kernel behavior of pci_restore_state() API call clears
9924          * device saved_state flag, need to save the restored state again.
9925          */
9926         pci_save_state(pdev);
9927
9928         if (pdev->is_busmaster)
9929                 pci_set_master(pdev);
9930
9931         spin_lock_irq(&phba->hbalock);
9932         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9933         spin_unlock_irq(&phba->hbalock);
9934
9935         /* Configure and enable interrupt */
9936         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9937         if (intr_mode == LPFC_INTR_ERROR) {
9938                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9939                                 "0427 Cannot re-enable interrupt after "
9940                                 "slot reset.\n");
9941                 return PCI_ERS_RESULT_DISCONNECT;
9942         } else
9943                 phba->intr_mode = intr_mode;
9944
9945         /* Take device offline, it will perform cleanup */
9946         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9947         lpfc_offline(phba);
9948         lpfc_sli_brdrestart(phba);
9949
9950         /* Log the current active interrupt mode */
9951         lpfc_log_intr_mode(phba, phba->intr_mode);
9952
9953         return PCI_ERS_RESULT_RECOVERED;
9954 }
9955
9956 /**
9957  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
9958  * @pdev: pointer to PCI device
9959  *
9960  * This routine is called from the PCI subsystem for error handling to device
9961  * with SLI-3 interface spec. It is called when kernel error recovery tells
9962  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9963  * error recovery. After this call, traffic can start to flow from this device
9964  * again.
9965  */
9966 static void
9967 lpfc_io_resume_s3(struct pci_dev *pdev)
9968 {
9969         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9970         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9971
9972         /* Bring device online, it will be no-op for non-fatal error resume */
9973         lpfc_online(phba);
9974
9975         /* Clean up Advanced Error Reporting (AER) if needed */
9976         if (phba->hba_flag & HBA_AER_ENABLED)
9977                 pci_cleanup_aer_uncorrect_error_status(pdev);
9978 }
9979
9980 /**
9981  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
9982  * @phba: pointer to lpfc hba data structure.
9983  *
9984  * returns the number of ELS/CT IOCBs to reserve
9985  **/
9986 int
9987 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
9988 {
9989         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
9990
9991         if (phba->sli_rev == LPFC_SLI_REV4) {
9992                 if (max_xri <= 100)
9993                         return 10;
9994                 else if (max_xri <= 256)
9995                         return 25;
9996                 else if (max_xri <= 512)
9997                         return 50;
9998                 else if (max_xri <= 1024)
9999                         return 100;
10000                 else if (max_xri <= 1536)
10001                         return 150;
10002                 else if (max_xri <= 2048)
10003                         return 200;
10004                 else
10005                         return 250;
10006         } else
10007                 return 0;
10008 }
10009
10010 /**
10011  * lpfc_write_firmware - attempt to write a firmware image to the port
10012  * @fw: pointer to firmware image returned from request_firmware.
10013  * @phba: pointer to lpfc hba data structure.
10014  *
10015  **/
10016 static void
10017 lpfc_write_firmware(const struct firmware *fw, void *context)
10018 {
10019         struct lpfc_hba *phba = (struct lpfc_hba *)context;
10020         char fwrev[FW_REV_STR_SIZE];
10021         struct lpfc_grp_hdr *image;
10022         struct list_head dma_buffer_list;
10023         int i, rc = 0;
10024         struct lpfc_dmabuf *dmabuf, *next;
10025         uint32_t offset = 0, temp_offset = 0;
10026
10027         /* It can be null in no-wait mode, sanity check */
10028         if (!fw) {
10029                 rc = -ENXIO;
10030                 goto out;
10031         }
10032         image = (struct lpfc_grp_hdr *)fw->data;
10033
10034         INIT_LIST_HEAD(&dma_buffer_list);
10035         if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
10036             (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
10037              LPFC_FILE_TYPE_GROUP) ||
10038             (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
10039             (be32_to_cpu(image->size) != fw->size)) {
10040                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10041                                 "3022 Invalid FW image found. "
10042                                 "Magic:%x Type:%x ID:%x\n",
10043                                 be32_to_cpu(image->magic_number),
10044                                 bf_get_be32(lpfc_grp_hdr_file_type, image),
10045                                 bf_get_be32(lpfc_grp_hdr_id, image));
10046                 rc = -EINVAL;
10047                 goto release_out;
10048         }
10049         lpfc_decode_firmware_rev(phba, fwrev, 1);
10050         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
10051                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10052                                 "3023 Updating Firmware, Current Version:%s "
10053                                 "New Version:%s\n",
10054                                 fwrev, image->revision);
10055                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
10056                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
10057                                          GFP_KERNEL);
10058                         if (!dmabuf) {
10059                                 rc = -ENOMEM;
10060                                 goto release_out;
10061                         }
10062                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
10063                                                           SLI4_PAGE_SIZE,
10064                                                           &dmabuf->phys,
10065                                                           GFP_KERNEL);
10066                         if (!dmabuf->virt) {
10067                                 kfree(dmabuf);
10068                                 rc = -ENOMEM;
10069                                 goto release_out;
10070                         }
10071                         list_add_tail(&dmabuf->list, &dma_buffer_list);
10072                 }
10073                 while (offset < fw->size) {
10074                         temp_offset = offset;
10075                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
10076                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
10077                                         memcpy(dmabuf->virt,
10078                                                fw->data + temp_offset,
10079                                                fw->size - temp_offset);
10080                                         temp_offset = fw->size;
10081                                         break;
10082                                 }
10083                                 memcpy(dmabuf->virt, fw->data + temp_offset,
10084                                        SLI4_PAGE_SIZE);
10085                                 temp_offset += SLI4_PAGE_SIZE;
10086                         }
10087                         rc = lpfc_wr_object(phba, &dma_buffer_list,
10088                                     (fw->size - offset), &offset);
10089                         if (rc)
10090                                 goto release_out;
10091                 }
10092                 rc = offset;
10093         }
10094
10095 release_out:
10096         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
10097                 list_del(&dmabuf->list);
10098                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
10099                                   dmabuf->virt, dmabuf->phys);
10100                 kfree(dmabuf);
10101         }
10102         release_firmware(fw);
10103 out:
10104         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10105                         "3024 Firmware update done: %d.\n", rc);
10106         return;
10107 }
10108
10109 /**
10110  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
10111  * @phba: pointer to lpfc hba data structure.
10112  *
10113  * This routine is called to perform Linux generic firmware upgrade on device
10114  * that supports such feature.
10115  **/
10116 int
10117 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
10118 {
10119         uint8_t file_name[ELX_MODEL_NAME_SIZE];
10120         int ret;
10121         const struct firmware *fw;
10122
10123         /* Only supported on SLI4 interface type 2 for now */
10124         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
10125             LPFC_SLI_INTF_IF_TYPE_2)
10126                 return -EPERM;
10127
10128         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
10129
10130         if (fw_upgrade == INT_FW_UPGRADE) {
10131                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
10132                                         file_name, &phba->pcidev->dev,
10133                                         GFP_KERNEL, (void *)phba,
10134                                         lpfc_write_firmware);
10135         } else if (fw_upgrade == RUN_FW_UPGRADE) {
10136                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
10137                 if (!ret)
10138                         lpfc_write_firmware(fw, (void *)phba);
10139         } else {
10140                 ret = -EINVAL;
10141         }
10142
10143         return ret;
10144 }
10145
10146 /**
10147  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
10148  * @pdev: pointer to PCI device
10149  * @pid: pointer to PCI device identifier
10150  *
10151  * This routine is called from the kernel's PCI subsystem to device with
10152  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10153  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10154  * information of the device and driver to see if the driver state that it
10155  * can support this kind of device. If the match is successful, the driver
10156  * core invokes this routine. If this routine determines it can claim the HBA,
10157  * it does all the initialization that it needs to do to handle the HBA
10158  * properly.
10159  *
10160  * Return code
10161  *      0 - driver can claim the device
10162  *      negative value - driver can not claim the device
10163  **/
10164 static int
10165 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
10166 {
10167         struct lpfc_hba   *phba;
10168         struct lpfc_vport *vport = NULL;
10169         struct Scsi_Host  *shost = NULL;
10170         int error, ret;
10171         uint32_t cfg_mode, intr_mode;
10172         int adjusted_fcp_io_channel;
10173
10174         /* Allocate memory for HBA structure */
10175         phba = lpfc_hba_alloc(pdev);
10176         if (!phba)
10177                 return -ENOMEM;
10178
10179         /* Perform generic PCI device enabling operation */
10180         error = lpfc_enable_pci_dev(phba);
10181         if (error)
10182                 goto out_free_phba;
10183
10184         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
10185         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
10186         if (error)
10187                 goto out_disable_pci_dev;
10188
10189         /* Set up SLI-4 specific device PCI memory space */
10190         error = lpfc_sli4_pci_mem_setup(phba);
10191         if (error) {
10192                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10193                                 "1410 Failed to set up pci memory space.\n");
10194                 goto out_disable_pci_dev;
10195         }
10196
10197         /* Set up phase-1 common device driver resources */
10198         error = lpfc_setup_driver_resource_phase1(phba);
10199         if (error) {
10200                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10201                                 "1411 Failed to set up driver resource.\n");
10202                 goto out_unset_pci_mem_s4;
10203         }
10204
10205         /* Set up SLI-4 Specific device driver resources */
10206         error = lpfc_sli4_driver_resource_setup(phba);
10207         if (error) {
10208                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10209                                 "1412 Failed to set up driver resource.\n");
10210                 goto out_unset_pci_mem_s4;
10211         }
10212
10213         /* Initialize and populate the iocb list per host */
10214
10215         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10216                         "2821 initialize iocb list %d.\n",
10217                         phba->cfg_iocb_cnt*1024);
10218         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10219
10220         if (error) {
10221                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10222                                 "1413 Failed to initialize iocb list.\n");
10223                 goto out_unset_driver_resource_s4;
10224         }
10225
10226         INIT_LIST_HEAD(&phba->active_rrq_list);
10227         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
10228
10229         /* Set up common device driver resources */
10230         error = lpfc_setup_driver_resource_phase2(phba);
10231         if (error) {
10232                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10233                                 "1414 Failed to set up driver resource.\n");
10234                 goto out_free_iocb_list;
10235         }
10236
10237         /* Get the default values for Model Name and Description */
10238         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10239
10240         /* Create SCSI host to the physical port */
10241         error = lpfc_create_shost(phba);
10242         if (error) {
10243                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10244                                 "1415 Failed to create scsi host.\n");
10245                 goto out_unset_driver_resource;
10246         }
10247
10248         /* Configure sysfs attributes */
10249         vport = phba->pport;
10250         error = lpfc_alloc_sysfs_attr(vport);
10251         if (error) {
10252                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10253                                 "1416 Failed to allocate sysfs attr\n");
10254                 goto out_destroy_shost;
10255         }
10256
10257         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10258         /* Now, trying to enable interrupt and bring up the device */
10259         cfg_mode = phba->cfg_use_msi;
10260
10261         /* Put device to a known state before enabling interrupt */
10262         lpfc_stop_port(phba);
10263         /* Configure and enable interrupt */
10264         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10265         if (intr_mode == LPFC_INTR_ERROR) {
10266                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10267                                 "0426 Failed to enable interrupt.\n");
10268                 error = -ENODEV;
10269                 goto out_free_sysfs_attr;
10270         }
10271         /* Default to single EQ for non-MSI-X */
10272         if (phba->intr_type != MSIX)
10273                 adjusted_fcp_io_channel = 1;
10274         else
10275                 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10276         phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10277         /* Set up SLI-4 HBA */
10278         if (lpfc_sli4_hba_setup(phba)) {
10279                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10280                                 "1421 Failed to set up hba\n");
10281                 error = -ENODEV;
10282                 goto out_disable_intr;
10283         }
10284
10285         /* Log the current active interrupt mode */
10286         phba->intr_mode = intr_mode;
10287         lpfc_log_intr_mode(phba, intr_mode);
10288
10289         /* Perform post initialization setup */
10290         lpfc_post_init_setup(phba);
10291
10292         /* check for firmware upgrade or downgrade */
10293         if (phba->cfg_request_firmware_upgrade)
10294                 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
10295
10296         /* Check if there are static vports to be created. */
10297         lpfc_create_static_vport(phba);
10298         return 0;
10299
10300 out_disable_intr:
10301         lpfc_sli4_disable_intr(phba);
10302 out_free_sysfs_attr:
10303         lpfc_free_sysfs_attr(vport);
10304 out_destroy_shost:
10305         lpfc_destroy_shost(phba);
10306 out_unset_driver_resource:
10307         lpfc_unset_driver_resource_phase2(phba);
10308 out_free_iocb_list:
10309         lpfc_free_iocb_list(phba);
10310 out_unset_driver_resource_s4:
10311         lpfc_sli4_driver_resource_unset(phba);
10312 out_unset_pci_mem_s4:
10313         lpfc_sli4_pci_mem_unset(phba);
10314 out_disable_pci_dev:
10315         lpfc_disable_pci_dev(phba);
10316         if (shost)
10317                 scsi_host_put(shost);
10318 out_free_phba:
10319         lpfc_hba_free(phba);
10320         return error;
10321 }
10322
10323 /**
10324  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
10325  * @pdev: pointer to PCI device
10326  *
10327  * This routine is called from the kernel's PCI subsystem to device with
10328  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10329  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10330  * device to be removed from the PCI subsystem properly.
10331  **/
10332 static void
10333 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
10334 {
10335         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10336         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10337         struct lpfc_vport **vports;
10338         struct lpfc_hba *phba = vport->phba;
10339         int i;
10340
10341         /* Mark the device unloading flag */
10342         spin_lock_irq(&phba->hbalock);
10343         vport->load_flag |= FC_UNLOADING;
10344         spin_unlock_irq(&phba->hbalock);
10345
10346         /* Free the HBA sysfs attributes */
10347         lpfc_free_sysfs_attr(vport);
10348
10349         /* Release all the vports against this physical port */
10350         vports = lpfc_create_vport_work_array(phba);
10351         if (vports != NULL)
10352                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10353                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10354                                 continue;
10355                         fc_vport_terminate(vports[i]->fc_vport);
10356                 }
10357         lpfc_destroy_vport_work_array(phba, vports);
10358
10359         /* Remove FC host and then SCSI host with the physical port */
10360         fc_remove_host(shost);
10361         scsi_remove_host(shost);
10362
10363         /* Perform cleanup on the physical port */
10364         lpfc_cleanup(vport);
10365
10366         /*
10367          * Bring down the SLI Layer. This step disables all interrupts,
10368          * clears the rings, discards all mailbox commands, and resets
10369          * the HBA FCoE function.
10370          */
10371         lpfc_debugfs_terminate(vport);
10372         lpfc_sli4_hba_unset(phba);
10373
10374         spin_lock_irq(&phba->hbalock);
10375         list_del_init(&vport->listentry);
10376         spin_unlock_irq(&phba->hbalock);
10377
10378         /* Perform scsi free before driver resource_unset since scsi
10379          * buffers are released to their corresponding pools here.
10380          */
10381         lpfc_scsi_free(phba);
10382
10383         lpfc_sli4_driver_resource_unset(phba);
10384
10385         /* Unmap adapter Control and Doorbell registers */
10386         lpfc_sli4_pci_mem_unset(phba);
10387
10388         /* Release PCI resources and disable device's PCI function */
10389         scsi_host_put(shost);
10390         lpfc_disable_pci_dev(phba);
10391
10392         /* Finally, free the driver's device data structure */
10393         lpfc_hba_free(phba);
10394
10395         return;
10396 }
10397
10398 /**
10399  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
10400  * @pdev: pointer to PCI device
10401  * @msg: power management message
10402  *
10403  * This routine is called from the kernel's PCI subsystem to support system
10404  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10405  * this method, it quiesces the device by stopping the driver's worker
10406  * thread for the device, turning off device's interrupt and DMA, and bring
10407  * the device offline. Note that as the driver implements the minimum PM
10408  * requirements to a power-aware driver's PM support for suspend/resume -- all
10409  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10410  * method call will be treated as SUSPEND and the driver will fully
10411  * reinitialize its device during resume() method call, the driver will set
10412  * device to PCI_D3hot state in PCI config space instead of setting it
10413  * according to the @msg provided by the PM.
10414  *
10415  * Return code
10416  *      0 - driver suspended the device
10417  *      Error otherwise
10418  **/
10419 static int
10420 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
10421 {
10422         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10423         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10424
10425         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10426                         "2843 PCI device Power Management suspend.\n");
10427
10428         /* Bring down the device */
10429         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10430         lpfc_offline(phba);
10431         kthread_stop(phba->worker_thread);
10432
10433         /* Disable interrupt from device */
10434         lpfc_sli4_disable_intr(phba);
10435         lpfc_sli4_queue_destroy(phba);
10436
10437         /* Save device state to PCI config space */
10438         pci_save_state(pdev);
10439         pci_set_power_state(pdev, PCI_D3hot);
10440
10441         return 0;
10442 }
10443
10444 /**
10445  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
10446  * @pdev: pointer to PCI device
10447  *
10448  * This routine is called from the kernel's PCI subsystem to support system
10449  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10450  * this method, it restores the device's PCI config space state and fully
10451  * reinitializes the device and brings it online. Note that as the driver
10452  * implements the minimum PM requirements to a power-aware driver's PM for
10453  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10454  * to the suspend() method call will be treated as SUSPEND and the driver
10455  * will fully reinitialize its device during resume() method call, the device
10456  * will be set to PCI_D0 directly in PCI config space before restoring the
10457  * state.
10458  *
10459  * Return code
10460  *      0 - driver suspended the device
10461  *      Error otherwise
10462  **/
10463 static int
10464 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
10465 {
10466         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10467         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10468         uint32_t intr_mode;
10469         int error;
10470
10471         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10472                         "0292 PCI device Power Management resume.\n");
10473
10474         /* Restore device state from PCI config space */
10475         pci_set_power_state(pdev, PCI_D0);
10476         pci_restore_state(pdev);
10477
10478         /*
10479          * As the new kernel behavior of pci_restore_state() API call clears
10480          * device saved_state flag, need to save the restored state again.
10481          */
10482         pci_save_state(pdev);
10483
10484         if (pdev->is_busmaster)
10485                 pci_set_master(pdev);
10486
10487          /* Startup the kernel thread for this host adapter. */
10488         phba->worker_thread = kthread_run(lpfc_do_work, phba,
10489                                         "lpfc_worker_%d", phba->brd_no);
10490         if (IS_ERR(phba->worker_thread)) {
10491                 error = PTR_ERR(phba->worker_thread);
10492                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10493                                 "0293 PM resume failed to start worker "
10494                                 "thread: error=x%x.\n", error);
10495                 return error;
10496         }
10497
10498         /* Configure and enable interrupt */
10499         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10500         if (intr_mode == LPFC_INTR_ERROR) {
10501                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10502                                 "0294 PM resume Failed to enable interrupt\n");
10503                 return -EIO;
10504         } else
10505                 phba->intr_mode = intr_mode;
10506
10507         /* Restart HBA and bring it online */
10508         lpfc_sli_brdrestart(phba);
10509         lpfc_online(phba);
10510
10511         /* Log the current active interrupt mode */
10512         lpfc_log_intr_mode(phba, phba->intr_mode);
10513
10514         return 0;
10515 }
10516
10517 /**
10518  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10519  * @phba: pointer to lpfc hba data structure.
10520  *
10521  * This routine is called to prepare the SLI4 device for PCI slot recover. It
10522  * aborts all the outstanding SCSI I/Os to the pci device.
10523  **/
10524 static void
10525 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10526 {
10527         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10528                         "2828 PCI channel I/O abort preparing for recovery\n");
10529         /*
10530          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10531          * and let the SCSI mid-layer to retry them to recover.
10532          */
10533         lpfc_sli_abort_fcp_rings(phba);
10534 }
10535
10536 /**
10537  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10538  * @phba: pointer to lpfc hba data structure.
10539  *
10540  * This routine is called to prepare the SLI4 device for PCI slot reset. It
10541  * disables the device interrupt and pci device, and aborts the internal FCP
10542  * pending I/Os.
10543  **/
10544 static void
10545 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10546 {
10547         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10548                         "2826 PCI channel disable preparing for reset\n");
10549
10550         /* Block any management I/Os to the device */
10551         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10552
10553         /* Block all SCSI devices' I/Os on the host */
10554         lpfc_scsi_dev_block(phba);
10555
10556         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10557         lpfc_sli_flush_fcp_rings(phba);
10558
10559         /* stop all timers */
10560         lpfc_stop_hba_timers(phba);
10561
10562         /* Disable interrupt and pci device */
10563         lpfc_sli4_disable_intr(phba);
10564         lpfc_sli4_queue_destroy(phba);
10565         pci_disable_device(phba->pcidev);
10566 }
10567
10568 /**
10569  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10570  * @phba: pointer to lpfc hba data structure.
10571  *
10572  * This routine is called to prepare the SLI4 device for PCI slot permanently
10573  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10574  * pending I/Os.
10575  **/
10576 static void
10577 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10578 {
10579         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10580                         "2827 PCI channel permanent disable for failure\n");
10581
10582         /* Block all SCSI devices' I/Os on the host */
10583         lpfc_scsi_dev_block(phba);
10584
10585         /* stop all timers */
10586         lpfc_stop_hba_timers(phba);
10587
10588         /* Clean up all driver's outstanding SCSI I/Os */
10589         lpfc_sli_flush_fcp_rings(phba);
10590 }
10591
10592 /**
10593  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10594  * @pdev: pointer to PCI device.
10595  * @state: the current PCI connection state.
10596  *
10597  * This routine is called from the PCI subsystem for error handling to device
10598  * with SLI-4 interface spec. This function is called by the PCI subsystem
10599  * after a PCI bus error affecting this device has been detected. When this
10600  * function is invoked, it will need to stop all the I/Os and interrupt(s)
10601  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10602  * for the PCI subsystem to perform proper recovery as desired.
10603  *
10604  * Return codes
10605  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10606  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10607  **/
10608 static pci_ers_result_t
10609 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10610 {
10611         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10612         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10613
10614         switch (state) {
10615         case pci_channel_io_normal:
10616                 /* Non-fatal error, prepare for recovery */
10617                 lpfc_sli4_prep_dev_for_recover(phba);
10618                 return PCI_ERS_RESULT_CAN_RECOVER;
10619         case pci_channel_io_frozen:
10620                 /* Fatal error, prepare for slot reset */
10621                 lpfc_sli4_prep_dev_for_reset(phba);
10622                 return PCI_ERS_RESULT_NEED_RESET;
10623         case pci_channel_io_perm_failure:
10624                 /* Permanent failure, prepare for device down */
10625                 lpfc_sli4_prep_dev_for_perm_failure(phba);
10626                 return PCI_ERS_RESULT_DISCONNECT;
10627         default:
10628                 /* Unknown state, prepare and request slot reset */
10629                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10630                                 "2825 Unknown PCI error state: x%x\n", state);
10631                 lpfc_sli4_prep_dev_for_reset(phba);
10632                 return PCI_ERS_RESULT_NEED_RESET;
10633         }
10634 }
10635
10636 /**
10637  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10638  * @pdev: pointer to PCI device.
10639  *
10640  * This routine is called from the PCI subsystem for error handling to device
10641  * with SLI-4 interface spec. It is called after PCI bus has been reset to
10642  * restart the PCI card from scratch, as if from a cold-boot. During the
10643  * PCI subsystem error recovery, after the driver returns
10644  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10645  * recovery and then call this routine before calling the .resume method to
10646  * recover the device. This function will initialize the HBA device, enable
10647  * the interrupt, but it will just put the HBA to offline state without
10648  * passing any I/O traffic.
10649  *
10650  * Return codes
10651  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10652  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10653  */
10654 static pci_ers_result_t
10655 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10656 {
10657         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10658         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10659         struct lpfc_sli *psli = &phba->sli;
10660         uint32_t intr_mode;
10661
10662         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10663         if (pci_enable_device_mem(pdev)) {
10664                 printk(KERN_ERR "lpfc: Cannot re-enable "
10665                         "PCI device after reset.\n");
10666                 return PCI_ERS_RESULT_DISCONNECT;
10667         }
10668
10669         pci_restore_state(pdev);
10670
10671         /*
10672          * As the new kernel behavior of pci_restore_state() API call clears
10673          * device saved_state flag, need to save the restored state again.
10674          */
10675         pci_save_state(pdev);
10676
10677         if (pdev->is_busmaster)
10678                 pci_set_master(pdev);
10679
10680         spin_lock_irq(&phba->hbalock);
10681         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10682         spin_unlock_irq(&phba->hbalock);
10683
10684         /* Configure and enable interrupt */
10685         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10686         if (intr_mode == LPFC_INTR_ERROR) {
10687                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10688                                 "2824 Cannot re-enable interrupt after "
10689                                 "slot reset.\n");
10690                 return PCI_ERS_RESULT_DISCONNECT;
10691         } else
10692                 phba->intr_mode = intr_mode;
10693
10694         /* Log the current active interrupt mode */
10695         lpfc_log_intr_mode(phba, phba->intr_mode);
10696
10697         return PCI_ERS_RESULT_RECOVERED;
10698 }
10699
10700 /**
10701  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10702  * @pdev: pointer to PCI device
10703  *
10704  * This routine is called from the PCI subsystem for error handling to device
10705  * with SLI-4 interface spec. It is called when kernel error recovery tells
10706  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10707  * error recovery. After this call, traffic can start to flow from this device
10708  * again.
10709  **/
10710 static void
10711 lpfc_io_resume_s4(struct pci_dev *pdev)
10712 {
10713         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10714         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10715
10716         /*
10717          * In case of slot reset, as function reset is performed through
10718          * mailbox command which needs DMA to be enabled, this operation
10719          * has to be moved to the io resume phase. Taking device offline
10720          * will perform the necessary cleanup.
10721          */
10722         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10723                 /* Perform device reset */
10724                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10725                 lpfc_offline(phba);
10726                 lpfc_sli_brdrestart(phba);
10727                 /* Bring the device back online */
10728                 lpfc_online(phba);
10729         }
10730
10731         /* Clean up Advanced Error Reporting (AER) if needed */
10732         if (phba->hba_flag & HBA_AER_ENABLED)
10733                 pci_cleanup_aer_uncorrect_error_status(pdev);
10734 }
10735
10736 /**
10737  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10738  * @pdev: pointer to PCI device
10739  * @pid: pointer to PCI device identifier
10740  *
10741  * This routine is to be registered to the kernel's PCI subsystem. When an
10742  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10743  * at PCI device-specific information of the device and driver to see if the
10744  * driver state that it can support this kind of device. If the match is
10745  * successful, the driver core invokes this routine. This routine dispatches
10746  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10747  * do all the initialization that it needs to do to handle the HBA device
10748  * properly.
10749  *
10750  * Return code
10751  *      0 - driver can claim the device
10752  *      negative value - driver can not claim the device
10753  **/
10754 static int
10755 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10756 {
10757         int rc;
10758         struct lpfc_sli_intf intf;
10759
10760         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10761                 return -ENODEV;
10762
10763         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10764             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10765                 rc = lpfc_pci_probe_one_s4(pdev, pid);
10766         else
10767                 rc = lpfc_pci_probe_one_s3(pdev, pid);
10768
10769         return rc;
10770 }
10771
10772 /**
10773  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10774  * @pdev: pointer to PCI device
10775  *
10776  * This routine is to be registered to the kernel's PCI subsystem. When an
10777  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10778  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10779  * remove routine, which will perform all the necessary cleanup for the
10780  * device to be removed from the PCI subsystem properly.
10781  **/
10782 static void
10783 lpfc_pci_remove_one(struct pci_dev *pdev)
10784 {
10785         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10786         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10787
10788         switch (phba->pci_dev_grp) {
10789         case LPFC_PCI_DEV_LP:
10790                 lpfc_pci_remove_one_s3(pdev);
10791                 break;
10792         case LPFC_PCI_DEV_OC:
10793                 lpfc_pci_remove_one_s4(pdev);
10794                 break;
10795         default:
10796                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10797                                 "1424 Invalid PCI device group: 0x%x\n",
10798                                 phba->pci_dev_grp);
10799                 break;
10800         }
10801         return;
10802 }
10803
10804 /**
10805  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10806  * @pdev: pointer to PCI device
10807  * @msg: power management message
10808  *
10809  * This routine is to be registered to the kernel's PCI subsystem to support
10810  * system Power Management (PM). When PM invokes this method, it dispatches
10811  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10812  * suspend the device.
10813  *
10814  * Return code
10815  *      0 - driver suspended the device
10816  *      Error otherwise
10817  **/
10818 static int
10819 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10820 {
10821         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10822         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10823         int rc = -ENODEV;
10824
10825         switch (phba->pci_dev_grp) {
10826         case LPFC_PCI_DEV_LP:
10827                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10828                 break;
10829         case LPFC_PCI_DEV_OC:
10830                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10831                 break;
10832         default:
10833                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10834                                 "1425 Invalid PCI device group: 0x%x\n",
10835                                 phba->pci_dev_grp);
10836                 break;
10837         }
10838         return rc;
10839 }
10840
10841 /**
10842  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10843  * @pdev: pointer to PCI device
10844  *
10845  * This routine is to be registered to the kernel's PCI subsystem to support
10846  * system Power Management (PM). When PM invokes this method, it dispatches
10847  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10848  * resume the device.
10849  *
10850  * Return code
10851  *      0 - driver suspended the device
10852  *      Error otherwise
10853  **/
10854 static int
10855 lpfc_pci_resume_one(struct pci_dev *pdev)
10856 {
10857         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10858         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10859         int rc = -ENODEV;
10860
10861         switch (phba->pci_dev_grp) {
10862         case LPFC_PCI_DEV_LP:
10863                 rc = lpfc_pci_resume_one_s3(pdev);
10864                 break;
10865         case LPFC_PCI_DEV_OC:
10866                 rc = lpfc_pci_resume_one_s4(pdev);
10867                 break;
10868         default:
10869                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10870                                 "1426 Invalid PCI device group: 0x%x\n",
10871                                 phba->pci_dev_grp);
10872                 break;
10873         }
10874         return rc;
10875 }
10876
10877 /**
10878  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10879  * @pdev: pointer to PCI device.
10880  * @state: the current PCI connection state.
10881  *
10882  * This routine is registered to the PCI subsystem for error handling. This
10883  * function is called by the PCI subsystem after a PCI bus error affecting
10884  * this device has been detected. When this routine is invoked, it dispatches
10885  * the action to the proper SLI-3 or SLI-4 device error detected handling
10886  * routine, which will perform the proper error detected operation.
10887  *
10888  * Return codes
10889  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10890  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10891  **/
10892 static pci_ers_result_t
10893 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
10894 {
10895         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10896         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10897         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10898
10899         switch (phba->pci_dev_grp) {
10900         case LPFC_PCI_DEV_LP:
10901                 rc = lpfc_io_error_detected_s3(pdev, state);
10902                 break;
10903         case LPFC_PCI_DEV_OC:
10904                 rc = lpfc_io_error_detected_s4(pdev, state);
10905                 break;
10906         default:
10907                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10908                                 "1427 Invalid PCI device group: 0x%x\n",
10909                                 phba->pci_dev_grp);
10910                 break;
10911         }
10912         return rc;
10913 }
10914
10915 /**
10916  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
10917  * @pdev: pointer to PCI device.
10918  *
10919  * This routine is registered to the PCI subsystem for error handling. This
10920  * function is called after PCI bus has been reset to restart the PCI card
10921  * from scratch, as if from a cold-boot. When this routine is invoked, it
10922  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
10923  * routine, which will perform the proper device reset.
10924  *
10925  * Return codes
10926  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10927  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10928  **/
10929 static pci_ers_result_t
10930 lpfc_io_slot_reset(struct pci_dev *pdev)
10931 {
10932         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10933         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10934         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10935
10936         switch (phba->pci_dev_grp) {
10937         case LPFC_PCI_DEV_LP:
10938                 rc = lpfc_io_slot_reset_s3(pdev);
10939                 break;
10940         case LPFC_PCI_DEV_OC:
10941                 rc = lpfc_io_slot_reset_s4(pdev);
10942                 break;
10943         default:
10944                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10945                                 "1428 Invalid PCI device group: 0x%x\n",
10946                                 phba->pci_dev_grp);
10947                 break;
10948         }
10949         return rc;
10950 }
10951
10952 /**
10953  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
10954  * @pdev: pointer to PCI device
10955  *
10956  * This routine is registered to the PCI subsystem for error handling. It
10957  * is called when kernel error recovery tells the lpfc driver that it is
10958  * OK to resume normal PCI operation after PCI bus error recovery. When
10959  * this routine is invoked, it dispatches the action to the proper SLI-3
10960  * or SLI-4 device io_resume routine, which will resume the device operation.
10961  **/
10962 static void
10963 lpfc_io_resume(struct pci_dev *pdev)
10964 {
10965         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10966         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10967
10968         switch (phba->pci_dev_grp) {
10969         case LPFC_PCI_DEV_LP:
10970                 lpfc_io_resume_s3(pdev);
10971                 break;
10972         case LPFC_PCI_DEV_OC:
10973                 lpfc_io_resume_s4(pdev);
10974                 break;
10975         default:
10976                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10977                                 "1429 Invalid PCI device group: 0x%x\n",
10978                                 phba->pci_dev_grp);
10979                 break;
10980         }
10981         return;
10982 }
10983
10984 /**
10985  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
10986  * @phba: pointer to lpfc hba data structure.
10987  *
10988  * This routine checks to see if OAS is supported for this adapter. If
10989  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
10990  * the enable oas flag is cleared and the pool created for OAS device data
10991  * is destroyed.
10992  *
10993  **/
10994 void
10995 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
10996 {
10997
10998         if (!phba->cfg_EnableXLane)
10999                 return;
11000
11001         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
11002                 phba->cfg_fof = 1;
11003         } else {
11004                 phba->cfg_fof = 0;
11005                 if (phba->device_data_mem_pool)
11006                         mempool_destroy(phba->device_data_mem_pool);
11007                 phba->device_data_mem_pool = NULL;
11008         }
11009
11010         return;
11011 }
11012
11013 /**
11014  * lpfc_fof_queue_setup - Set up all the fof queues
11015  * @phba: pointer to lpfc hba data structure.
11016  *
11017  * This routine is invoked to set up all the fof queues for the FC HBA
11018  * operation.
11019  *
11020  * Return codes
11021  *      0 - successful
11022  *      -ENOMEM - No available memory
11023  **/
11024 int
11025 lpfc_fof_queue_setup(struct lpfc_hba *phba)
11026 {
11027         struct lpfc_sli *psli = &phba->sli;
11028         int rc;
11029
11030         rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
11031         if (rc)
11032                 return -ENOMEM;
11033
11034         if (phba->cfg_fof) {
11035
11036                 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
11037                                     phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
11038                 if (rc)
11039                         goto out_oas_cq;
11040
11041                 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
11042                                     phba->sli4_hba.oas_cq, LPFC_FCP);
11043                 if (rc)
11044                         goto out_oas_wq;
11045
11046                 phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING];
11047                 phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING];
11048         }
11049
11050         return 0;
11051
11052 out_oas_wq:
11053         lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
11054 out_oas_cq:
11055         lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
11056         return rc;
11057
11058 }
11059
11060 /**
11061  * lpfc_fof_queue_create - Create all the fof queues
11062  * @phba: pointer to lpfc hba data structure.
11063  *
11064  * This routine is invoked to allocate all the fof queues for the FC HBA
11065  * operation. For each SLI4 queue type, the parameters such as queue entry
11066  * count (queue depth) shall be taken from the module parameter. For now,
11067  * we just use some constant number as place holder.
11068  *
11069  * Return codes
11070  *      0 - successful
11071  *      -ENOMEM - No availble memory
11072  *      -EIO - The mailbox failed to complete successfully.
11073  **/
11074 int
11075 lpfc_fof_queue_create(struct lpfc_hba *phba)
11076 {
11077         struct lpfc_queue *qdesc;
11078
11079         /* Create FOF EQ */
11080         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
11081                                       phba->sli4_hba.eq_ecount);
11082         if (!qdesc)
11083                 goto out_error;
11084
11085         phba->sli4_hba.fof_eq = qdesc;
11086
11087         if (phba->cfg_fof) {
11088
11089                 /* Create OAS CQ */
11090                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
11091                                                       phba->sli4_hba.cq_ecount);
11092                 if (!qdesc)
11093                         goto out_error;
11094
11095                 phba->sli4_hba.oas_cq = qdesc;
11096
11097                 /* Create OAS WQ */
11098                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
11099                                               phba->sli4_hba.wq_ecount);
11100                 if (!qdesc)
11101                         goto out_error;
11102
11103                 phba->sli4_hba.oas_wq = qdesc;
11104
11105         }
11106         return 0;
11107
11108 out_error:
11109         lpfc_fof_queue_destroy(phba);
11110         return -ENOMEM;
11111 }
11112
11113 /**
11114  * lpfc_fof_queue_destroy - Destroy all the fof queues
11115  * @phba: pointer to lpfc hba data structure.
11116  *
11117  * This routine is invoked to release all the SLI4 queues with the FC HBA
11118  * operation.
11119  *
11120  * Return codes
11121  *      0 - successful
11122  **/
11123 int
11124 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
11125 {
11126         /* Release FOF Event queue */
11127         if (phba->sli4_hba.fof_eq != NULL) {
11128                 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
11129                 phba->sli4_hba.fof_eq = NULL;
11130         }
11131
11132         /* Release OAS Completion queue */
11133         if (phba->sli4_hba.oas_cq != NULL) {
11134                 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
11135                 phba->sli4_hba.oas_cq = NULL;
11136         }
11137
11138         /* Release OAS Work queue */
11139         if (phba->sli4_hba.oas_wq != NULL) {
11140                 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
11141                 phba->sli4_hba.oas_wq = NULL;
11142         }
11143         return 0;
11144 }
11145
11146 static struct pci_device_id lpfc_id_table[] = {
11147         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
11148                 PCI_ANY_ID, PCI_ANY_ID, },
11149         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
11150                 PCI_ANY_ID, PCI_ANY_ID, },
11151         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
11152                 PCI_ANY_ID, PCI_ANY_ID, },
11153         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
11154                 PCI_ANY_ID, PCI_ANY_ID, },
11155         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
11156                 PCI_ANY_ID, PCI_ANY_ID, },
11157         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
11158                 PCI_ANY_ID, PCI_ANY_ID, },
11159         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
11160                 PCI_ANY_ID, PCI_ANY_ID, },
11161         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
11162                 PCI_ANY_ID, PCI_ANY_ID, },
11163         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
11164                 PCI_ANY_ID, PCI_ANY_ID, },
11165         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
11166                 PCI_ANY_ID, PCI_ANY_ID, },
11167         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
11168                 PCI_ANY_ID, PCI_ANY_ID, },
11169         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
11170                 PCI_ANY_ID, PCI_ANY_ID, },
11171         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
11172                 PCI_ANY_ID, PCI_ANY_ID, },
11173         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
11174                 PCI_ANY_ID, PCI_ANY_ID, },
11175         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
11176                 PCI_ANY_ID, PCI_ANY_ID, },
11177         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
11178                 PCI_ANY_ID, PCI_ANY_ID, },
11179         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
11180                 PCI_ANY_ID, PCI_ANY_ID, },
11181         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
11182                 PCI_ANY_ID, PCI_ANY_ID, },
11183         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
11184                 PCI_ANY_ID, PCI_ANY_ID, },
11185         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
11186                 PCI_ANY_ID, PCI_ANY_ID, },
11187         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
11188                 PCI_ANY_ID, PCI_ANY_ID, },
11189         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
11190                 PCI_ANY_ID, PCI_ANY_ID, },
11191         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
11192                 PCI_ANY_ID, PCI_ANY_ID, },
11193         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
11194                 PCI_ANY_ID, PCI_ANY_ID, },
11195         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
11196                 PCI_ANY_ID, PCI_ANY_ID, },
11197         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
11198                 PCI_ANY_ID, PCI_ANY_ID, },
11199         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
11200                 PCI_ANY_ID, PCI_ANY_ID, },
11201         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
11202                 PCI_ANY_ID, PCI_ANY_ID, },
11203         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
11204                 PCI_ANY_ID, PCI_ANY_ID, },
11205         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
11206                 PCI_ANY_ID, PCI_ANY_ID, },
11207         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
11208                 PCI_ANY_ID, PCI_ANY_ID, },
11209         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
11210                 PCI_ANY_ID, PCI_ANY_ID, },
11211         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
11212                 PCI_ANY_ID, PCI_ANY_ID, },
11213         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
11214                 PCI_ANY_ID, PCI_ANY_ID, },
11215         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
11216                 PCI_ANY_ID, PCI_ANY_ID, },
11217         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
11218                 PCI_ANY_ID, PCI_ANY_ID, },
11219         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
11220                 PCI_ANY_ID, PCI_ANY_ID, },
11221         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
11222                 PCI_ANY_ID, PCI_ANY_ID, },
11223         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
11224                 PCI_ANY_ID, PCI_ANY_ID, },
11225         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
11226                 PCI_ANY_ID, PCI_ANY_ID, },
11227         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
11228                 PCI_ANY_ID, PCI_ANY_ID, },
11229         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
11230                 PCI_ANY_ID, PCI_ANY_ID, },
11231         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
11232                 PCI_ANY_ID, PCI_ANY_ID, },
11233         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
11234                 PCI_ANY_ID, PCI_ANY_ID, },
11235         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
11236                 PCI_ANY_ID, PCI_ANY_ID, },
11237         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
11238                 PCI_ANY_ID, PCI_ANY_ID, },
11239         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
11240                 PCI_ANY_ID, PCI_ANY_ID, },
11241         { 0 }
11242 };
11243
11244 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
11245
11246 static const struct pci_error_handlers lpfc_err_handler = {
11247         .error_detected = lpfc_io_error_detected,
11248         .slot_reset = lpfc_io_slot_reset,
11249         .resume = lpfc_io_resume,
11250 };
11251
11252 static struct pci_driver lpfc_driver = {
11253         .name           = LPFC_DRIVER_NAME,
11254         .id_table       = lpfc_id_table,
11255         .probe          = lpfc_pci_probe_one,
11256         .remove         = lpfc_pci_remove_one,
11257         .suspend        = lpfc_pci_suspend_one,
11258         .resume         = lpfc_pci_resume_one,
11259         .err_handler    = &lpfc_err_handler,
11260 };
11261
11262 static const struct file_operations lpfc_mgmt_fop = {
11263         .owner = THIS_MODULE,
11264 };
11265
11266 static struct miscdevice lpfc_mgmt_dev = {
11267         .minor = MISC_DYNAMIC_MINOR,
11268         .name = "lpfcmgmt",
11269         .fops = &lpfc_mgmt_fop,
11270 };
11271
11272 /**
11273  * lpfc_init - lpfc module initialization routine
11274  *
11275  * This routine is to be invoked when the lpfc module is loaded into the
11276  * kernel. The special kernel macro module_init() is used to indicate the
11277  * role of this routine to the kernel as lpfc module entry point.
11278  *
11279  * Return codes
11280  *   0 - successful
11281  *   -ENOMEM - FC attach transport failed
11282  *   all others - failed
11283  */
11284 static int __init
11285 lpfc_init(void)
11286 {
11287         int cpu;
11288         int error = 0;
11289
11290         printk(LPFC_MODULE_DESC "\n");
11291         printk(LPFC_COPYRIGHT "\n");
11292
11293         error = misc_register(&lpfc_mgmt_dev);
11294         if (error)
11295                 printk(KERN_ERR "Could not register lpfcmgmt device, "
11296                         "misc_register returned with status %d", error);
11297
11298         if (lpfc_enable_npiv) {
11299                 lpfc_transport_functions.vport_create = lpfc_vport_create;
11300                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
11301         }
11302         lpfc_transport_template =
11303                                 fc_attach_transport(&lpfc_transport_functions);
11304         if (lpfc_transport_template == NULL)
11305                 return -ENOMEM;
11306         if (lpfc_enable_npiv) {
11307                 lpfc_vport_transport_template =
11308                         fc_attach_transport(&lpfc_vport_transport_functions);
11309                 if (lpfc_vport_transport_template == NULL) {
11310                         fc_release_transport(lpfc_transport_template);
11311                         return -ENOMEM;
11312                 }
11313         }
11314
11315         /* Initialize in case vector mapping is needed */
11316         lpfc_used_cpu = NULL;
11317         lpfc_present_cpu = 0;
11318         for_each_present_cpu(cpu)
11319                 lpfc_present_cpu++;
11320
11321         error = pci_register_driver(&lpfc_driver);
11322         if (error) {
11323                 fc_release_transport(lpfc_transport_template);
11324                 if (lpfc_enable_npiv)
11325                         fc_release_transport(lpfc_vport_transport_template);
11326         }
11327
11328         return error;
11329 }
11330
11331 /**
11332  * lpfc_exit - lpfc module removal routine
11333  *
11334  * This routine is invoked when the lpfc module is removed from the kernel.
11335  * The special kernel macro module_exit() is used to indicate the role of
11336  * this routine to the kernel as lpfc module exit point.
11337  */
11338 static void __exit
11339 lpfc_exit(void)
11340 {
11341         misc_deregister(&lpfc_mgmt_dev);
11342         pci_unregister_driver(&lpfc_driver);
11343         fc_release_transport(lpfc_transport_template);
11344         if (lpfc_enable_npiv)
11345                 fc_release_transport(lpfc_vport_transport_template);
11346         if (_dump_buf_data) {
11347                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
11348                                 "_dump_buf_data at 0x%p\n",
11349                                 (1L << _dump_buf_data_order), _dump_buf_data);
11350                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
11351         }
11352
11353         if (_dump_buf_dif) {
11354                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
11355                                 "_dump_buf_dif at 0x%p\n",
11356                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
11357                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
11358         }
11359         kfree(lpfc_used_cpu);
11360 }
11361
11362 module_init(lpfc_init);
11363 module_exit(lpfc_exit);
11364 MODULE_LICENSE("GPL");
11365 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11366 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11367 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);