drivers/scsi/bfa/bfad.c

   1 /*
   2  * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
   3  * All rights reserved
   4  * www.brocade.com
   5  *
   6  * Linux driver for Brocade Fibre Channel Host Bus Adapter.
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License (GPL) Version 2 as
  10  * published by the Free Software Foundation
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  */
  17
  18 /*
  19  *  bfad.c Linux driver PCI interface module.
  20  */
  21 #include <linux/module.h>
  22 #include <linux/kthread.h>
  23 #include <linux/errno.h>
  24 #include <linux/sched.h>
  25 #include <linux/init.h>
  26 #include <linux/fs.h>
  27 #include <linux/pci.h>
  28 #include <linux/firmware.h>
  29 #include <asm/uaccess.h>
  30 #include <asm/fcntl.h>
  31
  32 #include "bfad_drv.h"
  33 #include "bfad_im.h"
  34 #include "bfa_fcs.h"
  35 #include "bfa_defs.h"
  36 #include "bfa.h"
  37
  38 BFA_TRC_FILE(LDRV, BFAD);
  39 DEFINE_MUTEX(bfad_mutex);
  40 LIST_HEAD(bfad_list);
  41
  42 static int      bfad_inst;
  43 static int      num_sgpgs_parm;
  44 int             supported_fc4s;
  45 char            *host_name, *os_name, *os_patch;
  46 int             num_rports, num_ios, num_tms;
  47 int             num_fcxps, num_ufbufs;
  48 int             reqq_size, rspq_size, num_sgpgs;
  49 int             rport_del_timeout = BFA_FCS_RPORT_DEF_DEL_TIMEOUT;
  50 int             bfa_lun_queue_depth = BFAD_LUN_QUEUE_DEPTH;
  51 int             bfa_io_max_sge = BFAD_IO_MAX_SGE;
  52 int             bfa_log_level = 3; /* WARNING log level */
  53 int             ioc_auto_recover = BFA_TRUE;
  54 int             bfa_linkup_delay = -1;
  55 int             fdmi_enable = BFA_TRUE;
  56 int             pcie_max_read_reqsz;
  57 int             bfa_debugfs_enable = 1;
  58 int             msix_disable_cb = 0, msix_disable_ct = 0;
  59 int             max_xfer_size = BFAD_MAX_SECTORS >> 1;
  60 int             max_rport_logins = BFA_FCS_MAX_RPORT_LOGINS;
  61
  62 /* Firmware releated */
  63 u32     bfi_image_cb_size, bfi_image_ct_size, bfi_image_ct2_size;
  64 u32     *bfi_image_cb, *bfi_image_ct, *bfi_image_ct2;
  65
  66 #define BFAD_FW_FILE_CB         "/*(DEBLOBBED)*/"
  67 #define BFAD_FW_FILE_CT         "/*(DEBLOBBED)*/"
  68 #define BFAD_FW_FILE_CT2        "/*(DEBLOBBED)*/"
  69
  70 static u32 *bfad_load_fwimg(struct pci_dev *pdev);
  71 static void bfad_free_fwimg(void);
  72 static void bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
  73                 u32 *bfi_image_size, char *fw_name);
  74
  75 static const char *msix_name_ct[] = {
  76         "ctrl",
  77         "cpe0", "cpe1", "cpe2", "cpe3",
  78         "rme0", "rme1", "rme2", "rme3" };
  79
  80 static const char *msix_name_cb[] = {
  81         "cpe0", "cpe1", "cpe2", "cpe3",
  82         "rme0", "rme1", "rme2", "rme3",
  83         "eemc", "elpu0", "elpu1", "epss", "mlpu" };
  84
  85 /*(DEBLOBBED)*/
  86
  87 module_param(os_name, charp, S_IRUGO | S_IWUSR);
  88 MODULE_PARM_DESC(os_name, "OS name of the hba host machine");
  89 module_param(os_patch, charp, S_IRUGO | S_IWUSR);
  90 MODULE_PARM_DESC(os_patch, "OS patch level of the hba host machine");
  91 module_param(host_name, charp, S_IRUGO | S_IWUSR);
  92 MODULE_PARM_DESC(host_name, "Hostname of the hba host machine");
  93 module_param(num_rports, int, S_IRUGO | S_IWUSR);
  94 MODULE_PARM_DESC(num_rports, "Max number of rports supported per port "
  95                                 "(physical/logical), default=1024");
  96 module_param(num_ios, int, S_IRUGO | S_IWUSR);
  97 MODULE_PARM_DESC(num_ios, "Max number of ioim requests, default=2000");
  98 module_param(num_tms, int, S_IRUGO | S_IWUSR);
  99 MODULE_PARM_DESC(num_tms, "Max number of task im requests, default=128");
 100 module_param(num_fcxps, int, S_IRUGO | S_IWUSR);
 101 MODULE_PARM_DESC(num_fcxps, "Max number of fcxp requests, default=64");
 102 module_param(num_ufbufs, int, S_IRUGO | S_IWUSR);
 103 MODULE_PARM_DESC(num_ufbufs, "Max number of unsolicited frame "
 104                                 "buffers, default=64");
 105 module_param(reqq_size, int, S_IRUGO | S_IWUSR);
 106 MODULE_PARM_DESC(reqq_size, "Max number of request queue elements, "
 107                                 "default=256");
 108 module_param(rspq_size, int, S_IRUGO | S_IWUSR);
 109 MODULE_PARM_DESC(rspq_size, "Max number of response queue elements, "
 110                                 "default=64");
 111 module_param(num_sgpgs, int, S_IRUGO | S_IWUSR);
 112 MODULE_PARM_DESC(num_sgpgs, "Number of scatter/gather pages, default=2048");
 113 module_param(rport_del_timeout, int, S_IRUGO | S_IWUSR);
 114 MODULE_PARM_DESC(rport_del_timeout, "Rport delete timeout, default=90 secs, "
 115                                         "Range[>0]");
 116 module_param(bfa_lun_queue_depth, int, S_IRUGO | S_IWUSR);
 117 MODULE_PARM_DESC(bfa_lun_queue_depth, "Lun queue depth, default=32, Range[>0]");
 118 module_param(bfa_io_max_sge, int, S_IRUGO | S_IWUSR);
 119 MODULE_PARM_DESC(bfa_io_max_sge, "Max io scatter/gather elements, default=255");
 120 module_param(bfa_log_level, int, S_IRUGO | S_IWUSR);
 121 MODULE_PARM_DESC(bfa_log_level, "Driver log level, default=3, "
 122                                 "Range[Critical:1|Error:2|Warning:3|Info:4]");
 123 module_param(ioc_auto_recover, int, S_IRUGO | S_IWUSR);
 124 MODULE_PARM_DESC(ioc_auto_recover, "IOC auto recovery, default=1, "
 125                                 "Range[off:0|on:1]");
 126 module_param(bfa_linkup_delay, int, S_IRUGO | S_IWUSR);
 127 MODULE_PARM_DESC(bfa_linkup_delay, "Link up delay, default=30 secs for "
 128                         "boot port. Otherwise 10 secs in RHEL4 & 0 for "
 129                         "[RHEL5, SLES10, ESX40] Range[>0]");
 130 module_param(msix_disable_cb, int, S_IRUGO | S_IWUSR);
 131 MODULE_PARM_DESC(msix_disable_cb, "Disable Message Signaled Interrupts "
 132                         "for Brocade-415/425/815/825 cards, default=0, "
 133                         " Range[false:0|true:1]");
 134 module_param(msix_disable_ct, int, S_IRUGO | S_IWUSR);
 135 MODULE_PARM_DESC(msix_disable_ct, "Disable Message Signaled Interrupts "
 136                         "if possible for Brocade-1010/1020/804/1007/902/1741 "
 137                         "cards, default=0, Range[false:0|true:1]");
 138 module_param(fdmi_enable, int, S_IRUGO | S_IWUSR);
 139 MODULE_PARM_DESC(fdmi_enable, "Enables fdmi registration, default=1, "
 140                                 "Range[false:0|true:1]");
 141 module_param(pcie_max_read_reqsz, int, S_IRUGO | S_IWUSR);
 142 MODULE_PARM_DESC(pcie_max_read_reqsz, "PCIe max read request size, default=0 "
 143                 "(use system setting), Range[128|256|512|1024|2048|4096]");
 144 module_param(bfa_debugfs_enable, int, S_IRUGO | S_IWUSR);
 145 MODULE_PARM_DESC(bfa_debugfs_enable, "Enables debugfs feature, default=1,"
 146                 " Range[false:0|true:1]");
 147 module_param(max_xfer_size, int, S_IRUGO | S_IWUSR);
 148 MODULE_PARM_DESC(max_xfer_size, "default=32MB,"
 149                 " Range[64k|128k|256k|512k|1024k|2048k]");
 150 module_param(max_rport_logins, int, S_IRUGO | S_IWUSR);
 151 MODULE_PARM_DESC(max_rport_logins, "Max number of logins to initiator and target rports on a port (physical/logical), default=1024");
 152
 153 static void
 154 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event);
 155 static void
 156 bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event);
 157 static void
 158 bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event);
 159 static void
 160 bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event);
 161 static void
 162 bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event);
 163 static void
 164 bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event);
 165 static void
 166 bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event);
 167
 168 /*
 169  * Beginning state for the driver instance, awaiting the pci_probe event
 170  */
 171 static void
 172 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event)
 173 {
 174         bfa_trc(bfad, event);
 175
 176         switch (event) {
 177         case BFAD_E_CREATE:
 178                 bfa_sm_set_state(bfad, bfad_sm_created);
 179                 bfad->bfad_tsk = kthread_create(bfad_worker, (void *) bfad,
 180                                                 "%s", "bfad_worker");
 181                 if (IS_ERR(bfad->bfad_tsk)) {
 182                         printk(KERN_INFO "bfad[%d]: Kernel thread "
 183                                 "creation failed!\n", bfad->inst_no);
 184                         bfa_sm_send_event(bfad, BFAD_E_KTHREAD_CREATE_FAILED);
 185                 }
 186                 bfa_sm_send_event(bfad, BFAD_E_INIT);
 187                 break;
 188
 189         case BFAD_E_STOP:
 190                 /* Ignore stop; already in uninit */
 191                 break;
 192
 193         default:
 194                 bfa_sm_fault(bfad, event);
 195         }
 196 }
 197
 198 /*
 199  * Driver Instance is created, awaiting event INIT to initialize the bfad
 200  */
 201 static void
 202 bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event)
 203 {
 204         unsigned long flags;
 205         bfa_status_t ret;
 206
 207         bfa_trc(bfad, event);
 208
 209         switch (event) {
 210         case BFAD_E_INIT:
 211                 bfa_sm_set_state(bfad, bfad_sm_initializing);
 212
 213                 init_completion(&bfad->comp);
 214
 215                 /* Enable Interrupt and wait bfa_init completion */
 216                 if (bfad_setup_intr(bfad)) {
 217                         printk(KERN_WARNING "bfad%d: bfad_setup_intr failed\n",
 218                                         bfad->inst_no);
 219                         bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
 220                         break;
 221                 }
 222
 223                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 224                 bfa_iocfc_init(&bfad->bfa);
 225                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 226
 227                 /* Set up interrupt handler for each vectors */
 228                 if ((bfad->bfad_flags & BFAD_MSIX_ON) &&
 229                         bfad_install_msix_handler(bfad)) {
 230                         printk(KERN_WARNING "%s: install_msix failed, bfad%d\n",
 231                                 __func__, bfad->inst_no);
 232                 }
 233
 234                 bfad_init_timer(bfad);
 235
 236                 wait_for_completion(&bfad->comp);
 237
 238                 if ((bfad->bfad_flags & BFAD_HAL_INIT_DONE)) {
 239                         bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS);
 240                 } else {
 241                         printk(KERN_WARNING
 242                                 "bfa %s: bfa init failed\n",
 243                                 bfad->pci_name);
 244                         spin_lock_irqsave(&bfad->bfad_lock, flags);
 245                         bfa_fcs_init(&bfad->bfa_fcs);
 246                         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 247
 248                         ret = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM);
 249                         if (ret != BFA_STATUS_OK) {
 250                                 init_completion(&bfad->comp);
 251
 252                                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 253                                 bfad->pport.flags |= BFAD_PORT_DELETE;
 254                                 bfa_fcs_exit(&bfad->bfa_fcs);
 255                                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 256
 257                                 wait_for_completion(&bfad->comp);
 258
 259                                 bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
 260                                 break;
 261                         }
 262                         bfad->bfad_flags |= BFAD_HAL_INIT_FAIL;
 263                         bfa_sm_send_event(bfad, BFAD_E_HAL_INIT_FAILED);
 264                 }
 265
 266                 break;
 267
 268         case BFAD_E_KTHREAD_CREATE_FAILED:
 269                 bfa_sm_set_state(bfad, bfad_sm_uninit);
 270                 break;
 271
 272         default:
 273                 bfa_sm_fault(bfad, event);
 274         }
 275 }
 276
 277 static void
 278 bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event)
 279 {
 280         int     retval;
 281         unsigned long   flags;
 282
 283         bfa_trc(bfad, event);
 284
 285         switch (event) {
 286         case BFAD_E_INIT_SUCCESS:
 287                 kthread_stop(bfad->bfad_tsk);
 288                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 289                 bfad->bfad_tsk = NULL;
 290                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 291
 292                 retval = bfad_start_ops(bfad);
 293                 if (retval != BFA_STATUS_OK) {
 294                         bfa_sm_set_state(bfad, bfad_sm_failed);
 295                         break;
 296                 }
 297                 bfa_sm_set_state(bfad, bfad_sm_operational);
 298                 break;
 299
 300         case BFAD_E_INIT_FAILED:
 301                 bfa_sm_set_state(bfad, bfad_sm_uninit);
 302                 kthread_stop(bfad->bfad_tsk);
 303                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 304                 bfad->bfad_tsk = NULL;
 305                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 306                 break;
 307
 308         case BFAD_E_HAL_INIT_FAILED:
 309                 bfa_sm_set_state(bfad, bfad_sm_failed);
 310                 break;
 311         default:
 312                 bfa_sm_fault(bfad, event);
 313         }
 314 }
 315
 316 static void
 317 bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event)
 318 {
 319         int     retval;
 320
 321         bfa_trc(bfad, event);
 322
 323         switch (event) {
 324         case BFAD_E_INIT_SUCCESS:
 325                 retval = bfad_start_ops(bfad);
 326                 if (retval != BFA_STATUS_OK)
 327                         break;
 328                 bfa_sm_set_state(bfad, bfad_sm_operational);
 329                 break;
 330
 331         case BFAD_E_STOP:
 332                 bfa_sm_set_state(bfad, bfad_sm_fcs_exit);
 333                 bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP);
 334                 break;
 335
 336         case BFAD_E_EXIT_COMP:
 337                 bfa_sm_set_state(bfad, bfad_sm_uninit);
 338                 bfad_remove_intr(bfad);
 339                 del_timer_sync(&bfad->hal_tmo);
 340                 break;
 341
 342         default:
 343                 bfa_sm_fault(bfad, event);
 344         }
 345 }
 346
 347 static void
 348 bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event)
 349 {
 350         bfa_trc(bfad, event);
 351
 352         switch (event) {
 353         case BFAD_E_STOP:
 354                 bfa_sm_set_state(bfad, bfad_sm_fcs_exit);
 355                 bfad_fcs_stop(bfad);
 356                 break;
 357
 358         default:
 359                 bfa_sm_fault(bfad, event);
 360         }
 361 }
 362
 363 static void
 364 bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event)
 365 {
 366         bfa_trc(bfad, event);
 367
 368         switch (event) {
 369         case BFAD_E_FCS_EXIT_COMP:
 370                 bfa_sm_set_state(bfad, bfad_sm_stopping);
 371                 bfad_stop(bfad);
 372                 break;
 373
 374         default:
 375                 bfa_sm_fault(bfad, event);
 376         }
 377 }
 378
 379 static void
 380 bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event)
 381 {
 382         bfa_trc(bfad, event);
 383
 384         switch (event) {
 385         case BFAD_E_EXIT_COMP:
 386                 bfa_sm_set_state(bfad, bfad_sm_uninit);
 387                 bfad_remove_intr(bfad);
 388                 del_timer_sync(&bfad->hal_tmo);
 389                 bfad_im_probe_undo(bfad);
 390                 bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE;
 391                 bfad_uncfg_pport(bfad);
 392                 break;
 393
 394         default:
 395                 bfa_sm_fault(bfad, event);
 396                 break;
 397         }
 398 }
 399
 400 /*
 401  *  BFA callbacks
 402  */
 403 void
 404 bfad_hcb_comp(void *arg, bfa_status_t status)
 405 {
 406         struct bfad_hal_comp *fcomp = (struct bfad_hal_comp *)arg;
 407
 408         fcomp->status = status;
 409         complete(&fcomp->comp);
 410 }
 411
 412 /*
 413  * bfa_init callback
 414  */
 415 void
 416 bfa_cb_init(void *drv, bfa_status_t init_status)
 417 {
 418         struct bfad_s         *bfad = drv;
 419
 420         if (init_status == BFA_STATUS_OK) {
 421                 bfad->bfad_flags |= BFAD_HAL_INIT_DONE;
 422
 423                 /*
 424                  * If BFAD_HAL_INIT_FAIL flag is set:
 425                  * Wake up the kernel thread to start
 426                  * the bfad operations after HAL init done
 427                  */
 428                 if ((bfad->bfad_flags & BFAD_HAL_INIT_FAIL)) {
 429                         bfad->bfad_flags &= ~BFAD_HAL_INIT_FAIL;
 430                         wake_up_process(bfad->bfad_tsk);
 431                 }
 432         }
 433
 434         complete(&bfad->comp);
 435 }
 436
 437 /*
 438  *  BFA_FCS callbacks
 439  */
 440 struct bfad_port_s *
 441 bfa_fcb_lport_new(struct bfad_s *bfad, struct bfa_fcs_lport_s *port,
 442                  enum bfa_lport_role roles, struct bfad_vf_s *vf_drv,
 443                  struct bfad_vport_s *vp_drv)
 444 {
 445         bfa_status_t    rc;
 446         struct bfad_port_s    *port_drv;
 447
 448         if (!vp_drv && !vf_drv) {
 449                 port_drv = &bfad->pport;
 450                 port_drv->pvb_type = BFAD_PORT_PHYS_BASE;
 451         } else if (!vp_drv && vf_drv) {
 452                 port_drv = &vf_drv->base_port;
 453                 port_drv->pvb_type = BFAD_PORT_VF_BASE;
 454         } else if (vp_drv && !vf_drv) {
 455                 port_drv = &vp_drv->drv_port;
 456                 port_drv->pvb_type = BFAD_PORT_PHYS_VPORT;
 457         } else {
 458                 port_drv = &vp_drv->drv_port;
 459                 port_drv->pvb_type = BFAD_PORT_VF_VPORT;
 460         }
 461
 462         port_drv->fcs_port = port;
 463         port_drv->roles = roles;
 464
 465         if (roles & BFA_LPORT_ROLE_FCP_IM) {
 466                 rc = bfad_im_port_new(bfad, port_drv);
 467                 if (rc != BFA_STATUS_OK) {
 468                         bfad_im_port_delete(bfad, port_drv);
 469                         port_drv = NULL;
 470                 }
 471         }
 472
 473         return port_drv;
 474 }
 475
 476 /*
 477  * FCS RPORT alloc callback, after successful PLOGI by FCS
 478  */
 479 bfa_status_t
 480 bfa_fcb_rport_alloc(struct bfad_s *bfad, struct bfa_fcs_rport_s **rport,
 481                     struct bfad_rport_s **rport_drv)
 482 {
 483         bfa_status_t    rc = BFA_STATUS_OK;
 484
 485         *rport_drv = kzalloc(sizeof(struct bfad_rport_s), GFP_ATOMIC);
 486         if (*rport_drv == NULL) {
 487                 rc = BFA_STATUS_ENOMEM;
 488                 goto ext;
 489         }
 490
 491         *rport = &(*rport_drv)->fcs_rport;
 492
 493 ext:
 494         return rc;
 495 }
 496
 497 /*
 498  * FCS PBC VPORT Create
 499  */
 500 void
 501 bfa_fcb_pbc_vport_create(struct bfad_s *bfad, struct bfi_pbc_vport_s pbc_vport)
 502 {
 503
 504         struct bfa_lport_cfg_s port_cfg = {0};
 505         struct bfad_vport_s   *vport;
 506         int rc;
 507
 508         vport = kzalloc(sizeof(struct bfad_vport_s), GFP_ATOMIC);
 509         if (!vport) {
 510                 bfa_trc(bfad, 0);
 511                 return;
 512         }
 513
 514         vport->drv_port.bfad = bfad;
 515         port_cfg.roles = BFA_LPORT_ROLE_FCP_IM;
 516         port_cfg.pwwn = pbc_vport.vp_pwwn;
 517         port_cfg.nwwn = pbc_vport.vp_nwwn;
 518         port_cfg.preboot_vp  = BFA_TRUE;
 519
 520         rc = bfa_fcs_pbc_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, 0,
 521                                   &port_cfg, vport);
 522
 523         if (rc != BFA_STATUS_OK) {
 524                 bfa_trc(bfad, 0);
 525                 return;
 526         }
 527
 528         list_add_tail(&vport->list_entry, &bfad->pbc_vport_list);
 529 }
 530
 531 void
 532 bfad_hal_mem_release(struct bfad_s *bfad)
 533 {
 534         struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo;
 535         struct bfa_mem_dma_s *dma_info, *dma_elem;
 536         struct bfa_mem_kva_s *kva_info, *kva_elem;
 537         struct list_head *dm_qe, *km_qe;
 538
 539         dma_info = &hal_meminfo->dma_info;
 540         kva_info = &hal_meminfo->kva_info;
 541
 542         /* Iterate through the KVA meminfo queue */
 543         list_for_each(km_qe, &kva_info->qe) {
 544                 kva_elem = (struct bfa_mem_kva_s *) km_qe;
 545                 vfree(kva_elem->kva);
 546         }
 547
 548         /* Iterate through the DMA meminfo queue */
 549         list_for_each(dm_qe, &dma_info->qe) {
 550                 dma_elem = (struct bfa_mem_dma_s *) dm_qe;
 551                 dma_free_coherent(&bfad->pcidev->dev,
 552                                 dma_elem->mem_len, dma_elem->kva,
 553                                 (dma_addr_t) dma_elem->dma);
 554         }
 555
 556         memset(hal_meminfo, 0, sizeof(struct bfa_meminfo_s));
 557 }
 558
 559 void
 560 bfad_update_hal_cfg(struct bfa_iocfc_cfg_s *bfa_cfg)
 561 {
 562         if (num_rports > 0)
 563                 bfa_cfg->fwcfg.num_rports = num_rports;
 564         if (num_ios > 0)
 565                 bfa_cfg->fwcfg.num_ioim_reqs = num_ios;
 566         if (num_tms > 0)
 567                 bfa_cfg->fwcfg.num_tskim_reqs = num_tms;
 568         if (num_fcxps > 0 && num_fcxps <= BFA_FCXP_MAX)
 569                 bfa_cfg->fwcfg.num_fcxp_reqs = num_fcxps;
 570         if (num_ufbufs > 0 && num_ufbufs <= BFA_UF_MAX)
 571                 bfa_cfg->fwcfg.num_uf_bufs = num_ufbufs;
 572         if (reqq_size > 0)
 573                 bfa_cfg->drvcfg.num_reqq_elems = reqq_size;
 574         if (rspq_size > 0)
 575                 bfa_cfg->drvcfg.num_rspq_elems = rspq_size;
 576         if (num_sgpgs > 0 && num_sgpgs <= BFA_SGPG_MAX)
 577                 bfa_cfg->drvcfg.num_sgpgs = num_sgpgs;
 578
 579         /*
 580          * populate the hal values back to the driver for sysfs use.
 581          * otherwise, the default values will be shown as 0 in sysfs
 582          */
 583         num_rports = bfa_cfg->fwcfg.num_rports;
 584         num_ios = bfa_cfg->fwcfg.num_ioim_reqs;
 585         num_tms = bfa_cfg->fwcfg.num_tskim_reqs;
 586         num_fcxps = bfa_cfg->fwcfg.num_fcxp_reqs;
 587         num_ufbufs = bfa_cfg->fwcfg.num_uf_bufs;
 588         reqq_size = bfa_cfg->drvcfg.num_reqq_elems;
 589         rspq_size = bfa_cfg->drvcfg.num_rspq_elems;
 590         num_sgpgs = bfa_cfg->drvcfg.num_sgpgs;
 591 }
 592
 593 bfa_status_t
 594 bfad_hal_mem_alloc(struct bfad_s *bfad)
 595 {
 596         struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo;
 597         struct bfa_mem_dma_s *dma_info, *dma_elem;
 598         struct bfa_mem_kva_s *kva_info, *kva_elem;
 599         struct list_head *dm_qe, *km_qe;
 600         bfa_status_t    rc = BFA_STATUS_OK;
 601         dma_addr_t      phys_addr;
 602
 603         bfa_cfg_get_default(&bfad->ioc_cfg);
 604         bfad_update_hal_cfg(&bfad->ioc_cfg);
 605         bfad->cfg_data.ioc_queue_depth = bfad->ioc_cfg.fwcfg.num_ioim_reqs;
 606         bfa_cfg_get_meminfo(&bfad->ioc_cfg, hal_meminfo, &bfad->bfa);
 607
 608         dma_info = &hal_meminfo->dma_info;
 609         kva_info = &hal_meminfo->kva_info;
 610
 611         /* Iterate through the KVA meminfo queue */
 612         list_for_each(km_qe, &kva_info->qe) {
 613                 kva_elem = (struct bfa_mem_kva_s *) km_qe;
 614                 kva_elem->kva = vmalloc(kva_elem->mem_len);
 615                 if (kva_elem->kva == NULL) {
 616                         bfad_hal_mem_release(bfad);
 617                         rc = BFA_STATUS_ENOMEM;
 618                         goto ext;
 619                 }
 620                 memset(kva_elem->kva, 0, kva_elem->mem_len);
 621         }
 622
 623         /* Iterate through the DMA meminfo queue */
 624         list_for_each(dm_qe, &dma_info->qe) {
 625                 dma_elem = (struct bfa_mem_dma_s *) dm_qe;
 626                 dma_elem->kva = dma_alloc_coherent(&bfad->pcidev->dev,
 627                                                 dma_elem->mem_len,
 628                                                 &phys_addr, GFP_KERNEL);
 629                 if (dma_elem->kva == NULL) {
 630                         bfad_hal_mem_release(bfad);
 631                         rc = BFA_STATUS_ENOMEM;
 632                         goto ext;
 633                 }
 634                 dma_elem->dma = phys_addr;
 635                 memset(dma_elem->kva, 0, dma_elem->mem_len);
 636         }
 637 ext:
 638         return rc;
 639 }
 640
 641 /*
 642  * Create a vport under a vf.
 643  */
 644 bfa_status_t
 645 bfad_vport_create(struct bfad_s *bfad, u16 vf_id,
 646                   struct bfa_lport_cfg_s *port_cfg, struct device *dev)
 647 {
 648         struct bfad_vport_s   *vport;
 649         int             rc = BFA_STATUS_OK;
 650         unsigned long   flags;
 651         struct completion fcomp;
 652
 653         vport = kzalloc(sizeof(struct bfad_vport_s), GFP_KERNEL);
 654         if (!vport) {
 655                 rc = BFA_STATUS_ENOMEM;
 656                 goto ext;
 657         }
 658
 659         vport->drv_port.bfad = bfad;
 660         spin_lock_irqsave(&bfad->bfad_lock, flags);
 661         rc = bfa_fcs_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, vf_id,
 662                                   port_cfg, vport);
 663         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 664
 665         if (rc != BFA_STATUS_OK)
 666                 goto ext_free_vport;
 667
 668         if (port_cfg->roles & BFA_LPORT_ROLE_FCP_IM) {
 669                 rc = bfad_im_scsi_host_alloc(bfad, vport->drv_port.im_port,
 670                                                         dev);
 671                 if (rc != BFA_STATUS_OK)
 672                         goto ext_free_fcs_vport;
 673         }
 674
 675         spin_lock_irqsave(&bfad->bfad_lock, flags);
 676         bfa_fcs_vport_start(&vport->fcs_vport);
 677         list_add_tail(&vport->list_entry, &bfad->vport_list);
 678         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 679
 680         return BFA_STATUS_OK;
 681
 682 ext_free_fcs_vport:
 683         spin_lock_irqsave(&bfad->bfad_lock, flags);
 684         vport->comp_del = &fcomp;
 685         init_completion(vport->comp_del);
 686         bfa_fcs_vport_delete(&vport->fcs_vport);
 687         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 688         wait_for_completion(vport->comp_del);
 689 ext_free_vport:
 690         kfree(vport);
 691 ext:
 692         return rc;
 693 }
 694
 695 void
 696 bfad_bfa_tmo(unsigned long data)
 697 {
 698         struct bfad_s         *bfad = (struct bfad_s *) data;
 699         unsigned long   flags;
 700         struct list_head               doneq;
 701
 702         spin_lock_irqsave(&bfad->bfad_lock, flags);
 703
 704         bfa_timer_beat(&bfad->bfa.timer_mod);
 705
 706         bfa_comp_deq(&bfad->bfa, &doneq);
 707         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 708
 709         if (!list_empty(&doneq)) {
 710                 bfa_comp_process(&bfad->bfa, &doneq);
 711                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 712                 bfa_comp_free(&bfad->bfa, &doneq);
 713                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 714         }
 715
 716         mod_timer(&bfad->hal_tmo,
 717                   jiffies + msecs_to_jiffies(BFA_TIMER_FREQ));
 718 }
 719
 720 void
 721 bfad_init_timer(struct bfad_s *bfad)
 722 {
 723         init_timer(&bfad->hal_tmo);
 724         bfad->hal_tmo.function = bfad_bfa_tmo;
 725         bfad->hal_tmo.data = (unsigned long)bfad;
 726
 727         mod_timer(&bfad->hal_tmo,
 728                   jiffies + msecs_to_jiffies(BFA_TIMER_FREQ));
 729 }
 730
 731 int
 732 bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad)
 733 {
 734         int             rc = -ENODEV;
 735
 736         if (pci_enable_device(pdev)) {
 737                 printk(KERN_ERR "pci_enable_device fail %p\n", pdev);
 738                 goto out;
 739         }
 740
 741         if (pci_request_regions(pdev, BFAD_DRIVER_NAME))
 742                 goto out_disable_device;
 743
 744         pci_set_master(pdev);
 745
 746
 747         if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) ||
 748             (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)) {
 749                 if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) ||
 750                    (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)) {
 751                         printk(KERN_ERR "pci_set_dma_mask fail %p\n", pdev);
 752                         goto out_release_region;
 753                 }
 754         }
 755
 756         /* Enable PCIE Advanced Error Recovery (AER) if kernel supports */
 757         pci_enable_pcie_error_reporting(pdev);
 758
 759         bfad->pci_bar0_kva = pci_iomap(pdev, 0, pci_resource_len(pdev, 0));
 760         bfad->pci_bar2_kva = pci_iomap(pdev, 2, pci_resource_len(pdev, 2));
 761
 762         if (bfad->pci_bar0_kva == NULL) {
 763                 printk(KERN_ERR "Fail to map bar0\n");
 764                 goto out_release_region;
 765         }
 766
 767         bfad->hal_pcidev.pci_slot = PCI_SLOT(pdev->devfn);
 768         bfad->hal_pcidev.pci_func = PCI_FUNC(pdev->devfn);
 769         bfad->hal_pcidev.pci_bar_kva = bfad->pci_bar0_kva;
 770         bfad->hal_pcidev.device_id = pdev->device;
 771         bfad->hal_pcidev.ssid = pdev->subsystem_device;
 772         bfad->pci_name = pci_name(pdev);
 773
 774         bfad->pci_attr.vendor_id = pdev->vendor;
 775         bfad->pci_attr.device_id = pdev->device;
 776         bfad->pci_attr.ssid = pdev->subsystem_device;
 777         bfad->pci_attr.ssvid = pdev->subsystem_vendor;
 778         bfad->pci_attr.pcifn = PCI_FUNC(pdev->devfn);
 779
 780         bfad->pcidev = pdev;
 781
 782         /* Adjust PCIe Maximum Read Request Size */
 783         if (pci_is_pcie(pdev) && pcie_max_read_reqsz) {
 784                 if (pcie_max_read_reqsz >= 128 &&
 785                     pcie_max_read_reqsz <= 4096 &&
 786                     is_power_of_2(pcie_max_read_reqsz)) {
 787                         int max_rq = pcie_get_readrq(pdev);
 788                         printk(KERN_WARNING "BFA[%s]: "
 789                                 "pcie_max_read_request_size is %d, "
 790                                 "reset to %d\n", bfad->pci_name, max_rq,
 791                                 pcie_max_read_reqsz);
 792                         pcie_set_readrq(pdev, pcie_max_read_reqsz);
 793                 } else {
 794                         printk(KERN_WARNING "BFA[%s]: invalid "
 795                                "pcie_max_read_request_size %d ignored\n",
 796                                bfad->pci_name, pcie_max_read_reqsz);
 797                 }
 798         }
 799
 800         pci_save_state(pdev);
 801
 802         return 0;
 803
 804 out_release_region:
 805         pci_release_regions(pdev);
 806 out_disable_device:
 807         pci_disable_device(pdev);
 808 out:
 809         return rc;
 810 }
 811
 812 void
 813 bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad)
 814 {
 815         pci_iounmap(pdev, bfad->pci_bar0_kva);
 816         pci_iounmap(pdev, bfad->pci_bar2_kva);
 817         pci_release_regions(pdev);
 818         /* Disable PCIE Advanced Error Recovery (AER) */
 819         pci_disable_pcie_error_reporting(pdev);
 820         pci_disable_device(pdev);
 821 }
 822
 823 bfa_status_t
 824 bfad_drv_init(struct bfad_s *bfad)
 825 {
 826         bfa_status_t    rc;
 827         unsigned long   flags;
 828
 829         bfad->cfg_data.rport_del_timeout = rport_del_timeout;
 830         bfad->cfg_data.lun_queue_depth = bfa_lun_queue_depth;
 831         bfad->cfg_data.io_max_sge = bfa_io_max_sge;
 832         bfad->cfg_data.binding_method = FCP_PWWN_BINDING;
 833
 834         rc = bfad_hal_mem_alloc(bfad);
 835         if (rc != BFA_STATUS_OK) {
 836                 printk(KERN_WARNING "bfad%d bfad_hal_mem_alloc failure\n",
 837                        bfad->inst_no);
 838                 printk(KERN_WARNING
 839                         "Not enough memory to attach all Brocade HBA ports, %s",
 840                         "System may need more memory.\n");
 841                 return BFA_STATUS_FAILED;
 842         }
 843
 844         bfad->bfa.trcmod = bfad->trcmod;
 845         bfad->bfa.plog = &bfad->plog_buf;
 846         bfa_plog_init(&bfad->plog_buf);
 847         bfa_plog_str(&bfad->plog_buf, BFA_PL_MID_DRVR, BFA_PL_EID_DRIVER_START,
 848                      0, "Driver Attach");
 849
 850         bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg, &bfad->meminfo,
 851                    &bfad->hal_pcidev);
 852
 853         /* FCS INIT */
 854         spin_lock_irqsave(&bfad->bfad_lock, flags);
 855         bfad->bfa_fcs.trcmod = bfad->trcmod;
 856         bfa_fcs_attach(&bfad->bfa_fcs, &bfad->bfa, bfad, BFA_FALSE);
 857         bfad->bfa_fcs.fdmi_enabled = fdmi_enable;
 858         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 859
 860         bfad->bfad_flags |= BFAD_DRV_INIT_DONE;
 861
 862         return BFA_STATUS_OK;
 863 }
 864
 865 void
 866 bfad_drv_uninit(struct bfad_s *bfad)
 867 {
 868         unsigned long   flags;
 869
 870         spin_lock_irqsave(&bfad->bfad_lock, flags);
 871         init_completion(&bfad->comp);
 872         bfa_iocfc_stop(&bfad->bfa);
 873         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 874         wait_for_completion(&bfad->comp);
 875
 876         del_timer_sync(&bfad->hal_tmo);
 877         bfa_isr_disable(&bfad->bfa);
 878         bfa_detach(&bfad->bfa);
 879         bfad_remove_intr(bfad);
 880         bfad_hal_mem_release(bfad);
 881
 882         bfad->bfad_flags &= ~BFAD_DRV_INIT_DONE;
 883 }
 884
 885 void
 886 bfad_drv_start(struct bfad_s *bfad)
 887 {
 888         unsigned long   flags;
 889
 890         spin_lock_irqsave(&bfad->bfad_lock, flags);
 891         bfa_iocfc_start(&bfad->bfa);
 892         bfa_fcs_pbc_vport_init(&bfad->bfa_fcs);
 893         bfa_fcs_fabric_modstart(&bfad->bfa_fcs);
 894         bfad->bfad_flags |= BFAD_HAL_START_DONE;
 895         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 896
 897         if (bfad->im)
 898                 flush_workqueue(bfad->im->drv_workq);
 899 }
 900
 901 void
 902 bfad_fcs_stop(struct bfad_s *bfad)
 903 {
 904         unsigned long   flags;
 905
 906         spin_lock_irqsave(&bfad->bfad_lock, flags);
 907         init_completion(&bfad->comp);
 908         bfad->pport.flags |= BFAD_PORT_DELETE;
 909         bfa_fcs_exit(&bfad->bfa_fcs);
 910         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 911         wait_for_completion(&bfad->comp);
 912
 913         bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP);
 914 }
 915
 916 void
 917 bfad_stop(struct bfad_s *bfad)
 918 {
 919         unsigned long   flags;
 920
 921         spin_lock_irqsave(&bfad->bfad_lock, flags);
 922         init_completion(&bfad->comp);
 923         bfa_iocfc_stop(&bfad->bfa);
 924         bfad->bfad_flags &= ~BFAD_HAL_START_DONE;
 925         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 926         wait_for_completion(&bfad->comp);
 927
 928         bfa_sm_send_event(bfad, BFAD_E_EXIT_COMP);
 929 }
 930
 931 bfa_status_t
 932 bfad_cfg_pport(struct bfad_s *bfad, enum bfa_lport_role role)
 933 {
 934         int             rc = BFA_STATUS_OK;
 935
 936         /* Allocate scsi_host for the physical port */
 937         if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) &&
 938             (role & BFA_LPORT_ROLE_FCP_IM)) {
 939                 if (bfad->pport.im_port == NULL) {
 940                         rc = BFA_STATUS_FAILED;
 941                         goto out;
 942                 }
 943
 944                 rc = bfad_im_scsi_host_alloc(bfad, bfad->pport.im_port,
 945                                                 &bfad->pcidev->dev);
 946                 if (rc != BFA_STATUS_OK)
 947                         goto out;
 948
 949                 bfad->pport.roles |= BFA_LPORT_ROLE_FCP_IM;
 950         }
 951
 952         bfad->bfad_flags |= BFAD_CFG_PPORT_DONE;
 953
 954 out:
 955         return rc;
 956 }
 957
 958 void
 959 bfad_uncfg_pport(struct bfad_s *bfad)
 960 {
 961         if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) &&
 962             (bfad->pport.roles & BFA_LPORT_ROLE_FCP_IM)) {
 963                 bfad_im_scsi_host_free(bfad, bfad->pport.im_port);
 964                 bfad_im_port_clean(bfad->pport.im_port);
 965                 kfree(bfad->pport.im_port);
 966                 bfad->pport.roles &= ~BFA_LPORT_ROLE_FCP_IM;
 967         }
 968
 969         bfad->bfad_flags &= ~BFAD_CFG_PPORT_DONE;
 970 }
 971
 972 bfa_status_t
 973 bfad_start_ops(struct bfad_s *bfad) {
 974
 975         int     retval;
 976         unsigned long   flags;
 977         struct bfad_vport_s *vport, *vport_new;
 978         struct bfa_fcs_driver_info_s driver_info;
 979
 980         /* Limit min/max. xfer size to [64k-32MB] */
 981         if (max_xfer_size < BFAD_MIN_SECTORS >> 1)
 982                 max_xfer_size = BFAD_MIN_SECTORS >> 1;
 983         if (max_xfer_size > BFAD_MAX_SECTORS >> 1)
 984                 max_xfer_size = BFAD_MAX_SECTORS >> 1;
 985
 986         /* Fill the driver_info info to fcs*/
 987         memset(&driver_info, 0, sizeof(driver_info));
 988         strlcpy(driver_info.version, BFAD_DRIVER_VERSION,
 989                 sizeof(driver_info.version));
 990         if (host_name)
 991                 strlcpy(driver_info.host_machine_name, host_name,
 992                         sizeof(driver_info.host_machine_name));
 993         if (os_name)
 994                 strlcpy(driver_info.host_os_name, os_name,
 995                         sizeof(driver_info.host_os_name));
 996         if (os_patch)
 997                 strlcpy(driver_info.host_os_patch, os_patch,
 998                         sizeof(driver_info.host_os_patch));
 999
1000         strlcpy(driver_info.os_device_name, bfad->pci_name,
1001                 sizeof(driver_info.os_device_name));
1002
1003         /* FCS driver info init */
1004         spin_lock_irqsave(&bfad->bfad_lock, flags);
1005         bfa_fcs_driver_info_init(&bfad->bfa_fcs, &driver_info);
1006
1007         if (bfad->bfad_flags & BFAD_CFG_PPORT_DONE)
1008                 bfa_fcs_update_cfg(&bfad->bfa_fcs);
1009         else
1010                 bfa_fcs_init(&bfad->bfa_fcs);
1011
1012         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1013
1014         if (!(bfad->bfad_flags & BFAD_CFG_PPORT_DONE)) {
1015                 retval = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM);
1016                 if (retval != BFA_STATUS_OK)
1017                         return BFA_STATUS_FAILED;
1018         }
1019
1020         /* Setup fc host fixed attribute if the lk supports */
1021         bfad_fc_host_init(bfad->pport.im_port);
1022
1023         /* BFAD level FC4 IM specific resource allocation */
1024         retval = bfad_im_probe(bfad);
1025         if (retval != BFA_STATUS_OK) {
1026                 printk(KERN_WARNING "bfad_im_probe failed\n");
1027                 if (bfa_sm_cmp_state(bfad, bfad_sm_initializing))
1028                         bfa_sm_set_state(bfad, bfad_sm_failed);
1029                 return BFA_STATUS_FAILED;
1030         } else
1031                 bfad->bfad_flags |= BFAD_FC4_PROBE_DONE;
1032
1033         bfad_drv_start(bfad);
1034
1035         /* Complete pbc vport create */
1036         list_for_each_entry_safe(vport, vport_new, &bfad->pbc_vport_list,
1037                                 list_entry) {
1038                 struct fc_vport_identifiers vid;
1039                 struct fc_vport *fc_vport;
1040                 char pwwn_buf[BFA_STRING_32];
1041
1042                 memset(&vid, 0, sizeof(vid));
1043                 vid.roles = FC_PORT_ROLE_FCP_INITIATOR;
1044                 vid.vport_type = FC_PORTTYPE_NPIV;
1045                 vid.disable = false;
1046                 vid.node_name = wwn_to_u64((u8 *)
1047                                 (&((vport->fcs_vport).lport.port_cfg.nwwn)));
1048                 vid.port_name = wwn_to_u64((u8 *)
1049                                 (&((vport->fcs_vport).lport.port_cfg.pwwn)));
1050                 fc_vport = fc_vport_create(bfad->pport.im_port->shost, 0, &vid);
1051                 if (!fc_vport) {
1052                         wwn2str(pwwn_buf, vid.port_name);
1053                         printk(KERN_WARNING "bfad%d: failed to create pbc vport"
1054                                 " %s\n", bfad->inst_no, pwwn_buf);
1055                 }
1056                 list_del(&vport->list_entry);
1057                 kfree(vport);
1058         }
1059
1060         /*
1061          * If bfa_linkup_delay is set to -1 default; try to retrive the
1062          * value using the bfad_get_linkup_delay(); else use the
1063          * passed in module param value as the bfa_linkup_delay.
1064          */
1065         if (bfa_linkup_delay < 0) {
1066                 bfa_linkup_delay = bfad_get_linkup_delay(bfad);
1067                 bfad_rport_online_wait(bfad);
1068                 bfa_linkup_delay = -1;
1069         } else
1070                 bfad_rport_online_wait(bfad);
1071
1072         BFA_LOG(KERN_INFO, bfad, bfa_log_level, "bfa device claimed\n");
1073
1074         return BFA_STATUS_OK;
1075 }
1076
1077 int
1078 bfad_worker(void *ptr)
1079 {
1080         struct bfad_s *bfad = ptr;
1081         unsigned long flags;
1082
1083         if (kthread_should_stop())
1084                 return 0;
1085
1086         /* Send event BFAD_E_INIT_SUCCESS */
1087         bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS);
1088
1089         spin_lock_irqsave(&bfad->bfad_lock, flags);
1090         bfad->bfad_tsk = NULL;
1091         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1092
1093         return 0;
1094 }
1095
1096 /*
1097  *  BFA driver interrupt functions
1098  */
1099 irqreturn_t
1100 bfad_intx(int irq, void *dev_id)
1101 {
1102         struct bfad_s   *bfad = dev_id;
1103         struct list_head        doneq;
1104         unsigned long   flags;
1105         bfa_boolean_t rc;
1106
1107         spin_lock_irqsave(&bfad->bfad_lock, flags);
1108         rc = bfa_intx(&bfad->bfa);
1109         if (!rc) {
1110                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1111                 return IRQ_NONE;
1112         }
1113
1114         bfa_comp_deq(&bfad->bfa, &doneq);
1115         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1116
1117         if (!list_empty(&doneq)) {
1118                 bfa_comp_process(&bfad->bfa, &doneq);
1119
1120                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1121                 bfa_comp_free(&bfad->bfa, &doneq);
1122                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1123         }
1124
1125         return IRQ_HANDLED;
1126
1127 }
1128
1129 static irqreturn_t
1130 bfad_msix(int irq, void *dev_id)
1131 {
1132         struct bfad_msix_s *vec = dev_id;
1133         struct bfad_s *bfad = vec->bfad;
1134         struct list_head doneq;
1135         unsigned long   flags;
1136
1137         spin_lock_irqsave(&bfad->bfad_lock, flags);
1138
1139         bfa_msix(&bfad->bfa, vec->msix.entry);
1140         bfa_comp_deq(&bfad->bfa, &doneq);
1141         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1142
1143         if (!list_empty(&doneq)) {
1144                 bfa_comp_process(&bfad->bfa, &doneq);
1145
1146                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1147                 bfa_comp_free(&bfad->bfa, &doneq);
1148                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1149         }
1150
1151         return IRQ_HANDLED;
1152 }
1153
1154 /*
1155  * Initialize the MSIX entry table.
1156  */
1157 static void
1158 bfad_init_msix_entry(struct bfad_s *bfad, struct msix_entry *msix_entries,
1159                          int mask, int max_bit)
1160 {
1161         int     i;
1162         int     match = 0x00000001;
1163
1164         for (i = 0, bfad->nvec = 0; i < MAX_MSIX_ENTRY; i++) {
1165                 if (mask & match) {
1166                         bfad->msix_tab[bfad->nvec].msix.entry = i;
1167                         bfad->msix_tab[bfad->nvec].bfad = bfad;
1168                         msix_entries[bfad->nvec].entry = i;
1169                         bfad->nvec++;
1170                 }
1171
1172                 match <<= 1;
1173         }
1174
1175 }
1176
1177 int
1178 bfad_install_msix_handler(struct bfad_s *bfad)
1179 {
1180         int i, error = 0;
1181
1182         for (i = 0; i < bfad->nvec; i++) {
1183                 sprintf(bfad->msix_tab[i].name, "bfa-%s-%s",
1184                                 bfad->pci_name,
1185                                 ((bfa_asic_id_cb(bfad->hal_pcidev.device_id)) ?
1186                                 msix_name_cb[i] : msix_name_ct[i]));
1187
1188                 error = request_irq(bfad->msix_tab[i].msix.vector,
1189                                     (irq_handler_t) bfad_msix, 0,
1190                                     bfad->msix_tab[i].name, &bfad->msix_tab[i]);
1191                 bfa_trc(bfad, i);
1192                 bfa_trc(bfad, bfad->msix_tab[i].msix.vector);
1193                 if (error) {
1194                         int     j;
1195
1196                         for (j = 0; j < i; j++)
1197                                 free_irq(bfad->msix_tab[j].msix.vector,
1198                                                 &bfad->msix_tab[j]);
1199
1200                         bfad->bfad_flags &= ~BFAD_MSIX_ON;
1201                         pci_disable_msix(bfad->pcidev);
1202
1203                         return 1;
1204                 }
1205         }
1206
1207         return 0;
1208 }
1209
1210 /*
1211  * Setup MSIX based interrupt.
1212  */
1213 int
1214 bfad_setup_intr(struct bfad_s *bfad)
1215 {
1216         int error;
1217         u32 mask = 0, i, num_bit = 0, max_bit = 0;
1218         struct msix_entry msix_entries[MAX_MSIX_ENTRY];
1219         struct pci_dev *pdev = bfad->pcidev;
1220         u16     reg;
1221
1222         /* Call BFA to get the msix map for this PCI function.  */
1223         bfa_msix_getvecs(&bfad->bfa, &mask, &num_bit, &max_bit);
1224
1225         /* Set up the msix entry table */
1226         bfad_init_msix_entry(bfad, msix_entries, mask, max_bit);
1227
1228         if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
1229            (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {
1230
1231                 error = pci_enable_msix_exact(bfad->pcidev,
1232                                               msix_entries, bfad->nvec);
1233                 /* In CT1 & CT2, try to allocate just one vector */
1234                 if (error == -ENOSPC && bfa_asic_id_ctc(pdev->device)) {
1235                         printk(KERN_WARNING "bfa %s: trying one msix "
1236                                "vector failed to allocate %d[%d]\n",
1237                                bfad->pci_name, bfad->nvec, error);
1238                         bfad->nvec = 1;
1239                         error = pci_enable_msix_exact(bfad->pcidev,
1240                                                       msix_entries, 1);
1241                 }
1242
1243                 if (error) {
1244                         printk(KERN_WARNING "bfad%d: "
1245                                "pci_enable_msix_exact failed (%d), "
1246                                "use line based.\n",
1247                                 bfad->inst_no, error);
1248                         goto line_based;
1249                 }
1250
1251                 /* Disable INTX in MSI-X mode */
1252                 pci_read_config_word(pdev, PCI_COMMAND, &reg);
1253
1254                 if (!(reg & PCI_COMMAND_INTX_DISABLE))
1255                         pci_write_config_word(pdev, PCI_COMMAND,
1256                                 reg | PCI_COMMAND_INTX_DISABLE);
1257
1258                 /* Save the vectors */
1259                 for (i = 0; i < bfad->nvec; i++) {
1260                         bfa_trc(bfad, msix_entries[i].vector);
1261                         bfad->msix_tab[i].msix.vector = msix_entries[i].vector;
1262                 }
1263
1264                 bfa_msix_init(&bfad->bfa, bfad->nvec);
1265
1266                 bfad->bfad_flags |= BFAD_MSIX_ON;
1267
1268                 return 0;
1269         }
1270
1271 line_based:
1272         error = request_irq(bfad->pcidev->irq, (irq_handler_t)bfad_intx,
1273                             BFAD_IRQ_FLAGS, BFAD_DRIVER_NAME, bfad);
1274         if (error)
1275                 return error;
1276
1277         bfad->bfad_flags |= BFAD_INTX_ON;
1278
1279         return 0;
1280 }
1281
1282 void
1283 bfad_remove_intr(struct bfad_s *bfad)
1284 {
1285         int     i;
1286
1287         if (bfad->bfad_flags & BFAD_MSIX_ON) {
1288                 for (i = 0; i < bfad->nvec; i++)
1289                         free_irq(bfad->msix_tab[i].msix.vector,
1290                                         &bfad->msix_tab[i]);
1291
1292                 pci_disable_msix(bfad->pcidev);
1293                 bfad->bfad_flags &= ~BFAD_MSIX_ON;
1294         } else if (bfad->bfad_flags & BFAD_INTX_ON) {
1295                 free_irq(bfad->pcidev->irq, bfad);
1296         }
1297 }
1298
1299 /*
1300  * PCI probe entry.
1301  */
1302 int
1303 bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid)
1304 {
1305         struct bfad_s   *bfad;
1306         int             error = -ENODEV, retval, i;
1307
1308         /* For single port cards - only claim function 0 */
1309         if ((pdev->device == BFA_PCI_DEVICE_ID_FC_8G1P) &&
1310                 (PCI_FUNC(pdev->devfn) != 0))
1311                 return -ENODEV;
1312
1313         bfad = kzalloc(sizeof(struct bfad_s), GFP_KERNEL);
1314         if (!bfad) {
1315                 error = -ENOMEM;
1316                 goto out;
1317         }
1318
1319         bfad->trcmod = kzalloc(sizeof(struct bfa_trc_mod_s), GFP_KERNEL);
1320         if (!bfad->trcmod) {
1321                 printk(KERN_WARNING "Error alloc trace buffer!\n");
1322                 error = -ENOMEM;
1323                 goto out_alloc_trace_failure;
1324         }
1325
1326         /* TRACE INIT */
1327         bfa_trc_init(bfad->trcmod);
1328         bfa_trc(bfad, bfad_inst);
1329
1330         /* AEN INIT */
1331         INIT_LIST_HEAD(&bfad->free_aen_q);
1332         INIT_LIST_HEAD(&bfad->active_aen_q);
1333         for (i = 0; i < BFA_AEN_MAX_ENTRY; i++)
1334                 list_add_tail(&bfad->aen_list[i].qe, &bfad->free_aen_q);
1335
1336         if (!(bfad_load_fwimg(pdev))) {
1337                 kfree(bfad->trcmod);
1338                 goto out_alloc_trace_failure;
1339         }
1340
1341         retval = bfad_pci_init(pdev, bfad);
1342         if (retval) {
1343                 printk(KERN_WARNING "bfad_pci_init failure!\n");
1344                 error = retval;
1345                 goto out_pci_init_failure;
1346         }
1347
1348         mutex_lock(&bfad_mutex);
1349         bfad->inst_no = bfad_inst++;
1350         list_add_tail(&bfad->list_entry, &bfad_list);
1351         mutex_unlock(&bfad_mutex);
1352
1353         /* Initializing the state machine: State set to uninit */
1354         bfa_sm_set_state(bfad, bfad_sm_uninit);
1355
1356         spin_lock_init(&bfad->bfad_lock);
1357         spin_lock_init(&bfad->bfad_aen_spinlock);
1358
1359         pci_set_drvdata(pdev, bfad);
1360
1361         bfad->ref_count = 0;
1362         bfad->pport.bfad = bfad;
1363         INIT_LIST_HEAD(&bfad->pbc_vport_list);
1364         INIT_LIST_HEAD(&bfad->vport_list);
1365
1366         /* Setup the debugfs node for this bfad */
1367         if (bfa_debugfs_enable)
1368                 bfad_debugfs_init(&bfad->pport);
1369
1370         retval = bfad_drv_init(bfad);
1371         if (retval != BFA_STATUS_OK)
1372                 goto out_drv_init_failure;
1373
1374         bfa_sm_send_event(bfad, BFAD_E_CREATE);
1375
1376         if (bfa_sm_cmp_state(bfad, bfad_sm_uninit))
1377                 goto out_bfad_sm_failure;
1378
1379         return 0;
1380
1381 out_bfad_sm_failure:
1382         bfad_hal_mem_release(bfad);
1383 out_drv_init_failure:
1384         /* Remove the debugfs node for this bfad */
1385         kfree(bfad->regdata);
1386         bfad_debugfs_exit(&bfad->pport);
1387         mutex_lock(&bfad_mutex);
1388         bfad_inst--;
1389         list_del(&bfad->list_entry);
1390         mutex_unlock(&bfad_mutex);
1391         bfad_pci_uninit(pdev, bfad);
1392 out_pci_init_failure:
1393         kfree(bfad->trcmod);
1394 out_alloc_trace_failure:
1395         kfree(bfad);
1396 out:
1397         return error;
1398 }
1399
1400 /*
1401  * PCI remove entry.
1402  */
1403 void
1404 bfad_pci_remove(struct pci_dev *pdev)
1405 {
1406         struct bfad_s         *bfad = pci_get_drvdata(pdev);
1407         unsigned long   flags;
1408
1409         bfa_trc(bfad, bfad->inst_no);
1410
1411         spin_lock_irqsave(&bfad->bfad_lock, flags);
1412         if (bfad->bfad_tsk != NULL) {
1413                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1414                 kthread_stop(bfad->bfad_tsk);
1415         } else {
1416                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1417         }
1418
1419         /* Send Event BFAD_E_STOP */
1420         bfa_sm_send_event(bfad, BFAD_E_STOP);
1421
1422         /* Driver detach and dealloc mem */
1423         spin_lock_irqsave(&bfad->bfad_lock, flags);
1424         bfa_detach(&bfad->bfa);
1425         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1426         bfad_hal_mem_release(bfad);
1427
1428         /* Remove the debugfs node for this bfad */
1429         kfree(bfad->regdata);
1430         bfad_debugfs_exit(&bfad->pport);
1431
1432         /* Cleaning the BFAD instance */
1433         mutex_lock(&bfad_mutex);
1434         bfad_inst--;
1435         list_del(&bfad->list_entry);
1436         mutex_unlock(&bfad_mutex);
1437         bfad_pci_uninit(pdev, bfad);
1438
1439         kfree(bfad->trcmod);
1440         kfree(bfad);
1441 }
1442
1443 /*
1444  * PCI Error Recovery entry, error detected.
1445  */
1446 static pci_ers_result_t
1447 bfad_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
1448 {
1449         struct bfad_s *bfad = pci_get_drvdata(pdev);
1450         unsigned long   flags;
1451         pci_ers_result_t ret = PCI_ERS_RESULT_NONE;
1452
1453         dev_printk(KERN_ERR, &pdev->dev,
1454                    "error detected state: %d - flags: 0x%x\n",
1455                    state, bfad->bfad_flags);
1456
1457         switch (state) {
1458         case pci_channel_io_normal: /* non-fatal error */
1459                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1460                 bfad->bfad_flags &= ~BFAD_EEH_BUSY;
1461                 /* Suspend/fail all bfa operations */
1462                 bfa_ioc_suspend(&bfad->bfa.ioc);
1463                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1464                 del_timer_sync(&bfad->hal_tmo);
1465                 ret = PCI_ERS_RESULT_CAN_RECOVER;
1466                 break;
1467         case pci_channel_io_frozen: /* fatal error */
1468                 init_completion(&bfad->comp);
1469                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1470                 bfad->bfad_flags |= BFAD_EEH_BUSY;
1471                 /* Suspend/fail all bfa operations */
1472                 bfa_ioc_suspend(&bfad->bfa.ioc);
1473                 bfa_fcs_stop(&bfad->bfa_fcs);
1474                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1475                 wait_for_completion(&bfad->comp);
1476
1477                 bfad_remove_intr(bfad);
1478                 del_timer_sync(&bfad->hal_tmo);
1479                 pci_disable_device(pdev);
1480                 ret = PCI_ERS_RESULT_NEED_RESET;
1481                 break;
1482         case pci_channel_io_perm_failure: /* PCI Card is DEAD */
1483                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1484                 bfad->bfad_flags |= BFAD_EEH_BUSY |
1485                                     BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE;
1486                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1487
1488                 /* If the error_detected handler is called with the reason
1489                  * pci_channel_io_perm_failure - it will subsequently call
1490                  * pci_remove() entry point to remove the pci device from the
1491                  * system - So defer the cleanup to pci_remove(); cleaning up
1492                  * here causes inconsistent state during pci_remove().
1493                  */
1494                 ret = PCI_ERS_RESULT_DISCONNECT;
1495                 break;
1496         default:
1497                 WARN_ON(1);
1498         }
1499
1500         return ret;
1501 }
1502
1503 int
1504 restart_bfa(struct bfad_s *bfad)
1505 {
1506         unsigned long flags;
1507         struct pci_dev *pdev = bfad->pcidev;
1508
1509         bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg,
1510                    &bfad->meminfo, &bfad->hal_pcidev);
1511
1512         /* Enable Interrupt and wait bfa_init completion */
1513         if (bfad_setup_intr(bfad)) {
1514                 dev_printk(KERN_WARNING, &pdev->dev,
1515                            "%s: bfad_setup_intr failed\n", bfad->pci_name);
1516                 bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
1517                 return -1;
1518         }
1519
1520         init_completion(&bfad->comp);
1521         spin_lock_irqsave(&bfad->bfad_lock, flags);
1522         bfa_iocfc_init(&bfad->bfa);
1523         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1524
1525         /* Set up interrupt handler for each vectors */
1526         if ((bfad->bfad_flags & BFAD_MSIX_ON) &&
1527             bfad_install_msix_handler(bfad))
1528                 dev_printk(KERN_WARNING, &pdev->dev,
1529                            "%s: install_msix failed.\n", bfad->pci_name);
1530
1531         bfad_init_timer(bfad);
1532         wait_for_completion(&bfad->comp);
1533         bfad_drv_start(bfad);
1534
1535         return 0;
1536 }
1537
1538 /*
1539  * PCI Error Recovery entry, re-initialize the chip.
1540  */
1541 static pci_ers_result_t
1542 bfad_pci_slot_reset(struct pci_dev *pdev)
1543 {
1544         struct bfad_s *bfad = pci_get_drvdata(pdev);
1545         u8 byte;
1546
1547         dev_printk(KERN_ERR, &pdev->dev,
1548                    "bfad_pci_slot_reset flags: 0x%x\n", bfad->bfad_flags);
1549
1550         if (pci_enable_device(pdev)) {
1551                 dev_printk(KERN_ERR, &pdev->dev, "Cannot re-enable "
1552                            "PCI device after reset.\n");
1553                 return PCI_ERS_RESULT_DISCONNECT;
1554         }
1555
1556         pci_restore_state(pdev);
1557
1558         /*
1559          * Read some byte (e.g. DMA max. payload size which can't
1560          * be 0xff any time) to make sure - we did not hit another PCI error
1561          * in the middle of recovery. If we did, then declare permanent failure.
1562          */
1563         pci_read_config_byte(pdev, 0x68, &byte);
1564         if (byte == 0xff) {
1565                 dev_printk(KERN_ERR, &pdev->dev,
1566                            "slot_reset failed ... got another PCI error !\n");
1567                 goto out_disable_device;
1568         }
1569
1570         pci_save_state(pdev);
1571         pci_set_master(pdev);
1572
1573         if (pci_set_dma_mask(bfad->pcidev, DMA_BIT_MASK(64)) != 0)
1574                 if (pci_set_dma_mask(bfad->pcidev, DMA_BIT_MASK(32)) != 0)
1575                         goto out_disable_device;
1576
1577         pci_cleanup_aer_uncorrect_error_status(pdev);
1578
1579         if (restart_bfa(bfad) == -1)
1580                 goto out_disable_device;
1581
1582         pci_enable_pcie_error_reporting(pdev);
1583         dev_printk(KERN_WARNING, &pdev->dev,
1584                    "slot_reset completed  flags: 0x%x!\n", bfad->bfad_flags);
1585
1586         return PCI_ERS_RESULT_RECOVERED;
1587
1588 out_disable_device:
1589         pci_disable_device(pdev);
1590         return PCI_ERS_RESULT_DISCONNECT;
1591 }
1592
1593 static pci_ers_result_t
1594 bfad_pci_mmio_enabled(struct pci_dev *pdev)
1595 {
1596         unsigned long   flags;
1597         struct bfad_s *bfad = pci_get_drvdata(pdev);
1598
1599         dev_printk(KERN_INFO, &pdev->dev, "mmio_enabled\n");
1600
1601         /* Fetch FW diagnostic information */
1602         bfa_ioc_debug_save_ftrc(&bfad->bfa.ioc);
1603
1604         /* Cancel all pending IOs */
1605         spin_lock_irqsave(&bfad->bfad_lock, flags);
1606         init_completion(&bfad->comp);
1607         bfa_fcs_stop(&bfad->bfa_fcs);
1608         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1609         wait_for_completion(&bfad->comp);
1610
1611         bfad_remove_intr(bfad);
1612         del_timer_sync(&bfad->hal_tmo);
1613         pci_disable_device(pdev);
1614
1615         return PCI_ERS_RESULT_NEED_RESET;
1616 }
1617
1618 static void
1619 bfad_pci_resume(struct pci_dev *pdev)
1620 {
1621         unsigned long   flags;
1622         struct bfad_s *bfad = pci_get_drvdata(pdev);
1623
1624         dev_printk(KERN_WARNING, &pdev->dev, "resume\n");
1625
1626         /* wait until the link is online */
1627         bfad_rport_online_wait(bfad);
1628
1629         spin_lock_irqsave(&bfad->bfad_lock, flags);
1630         bfad->bfad_flags &= ~BFAD_EEH_BUSY;
1631         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1632 }
1633
1634 struct pci_device_id bfad_id_table[] = {
1635         {
1636                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1637                 .device = BFA_PCI_DEVICE_ID_FC_8G2P,
1638                 .subvendor = PCI_ANY_ID,
1639                 .subdevice = PCI_ANY_ID,
1640         },
1641         {
1642                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1643                 .device = BFA_PCI_DEVICE_ID_FC_8G1P,
1644                 .subvendor = PCI_ANY_ID,
1645                 .subdevice = PCI_ANY_ID,
1646         },
1647         {
1648                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1649                 .device = BFA_PCI_DEVICE_ID_CT,
1650                 .subvendor = PCI_ANY_ID,
1651                 .subdevice = PCI_ANY_ID,
1652                 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1653                 .class_mask = ~0,
1654         },
1655         {
1656                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1657                 .device = BFA_PCI_DEVICE_ID_CT_FC,
1658                 .subvendor = PCI_ANY_ID,
1659                 .subdevice = PCI_ANY_ID,
1660                 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1661                 .class_mask = ~0,
1662         },
1663         {
1664                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1665                 .device = BFA_PCI_DEVICE_ID_CT2,
1666                 .subvendor = PCI_ANY_ID,
1667                 .subdevice = PCI_ANY_ID,
1668                 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1669                 .class_mask = ~0,
1670         },
1671
1672         {
1673                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1674                 .device = BFA_PCI_DEVICE_ID_CT2_QUAD,
1675                 .subvendor = PCI_ANY_ID,
1676                 .subdevice = PCI_ANY_ID,
1677                 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1678                 .class_mask = ~0,
1679         },
1680         {0, 0},
1681 };
1682
1683 MODULE_DEVICE_TABLE(pci, bfad_id_table);
1684
1685 /*
1686  * PCI error recovery handlers.
1687  */
1688 static struct pci_error_handlers bfad_err_handler = {
1689         .error_detected = bfad_pci_error_detected,
1690         .slot_reset = bfad_pci_slot_reset,
1691         .mmio_enabled = bfad_pci_mmio_enabled,
1692         .resume = bfad_pci_resume,
1693 };
1694
1695 static struct pci_driver bfad_pci_driver = {
1696         .name = BFAD_DRIVER_NAME,
1697         .id_table = bfad_id_table,
1698         .probe = bfad_pci_probe,
1699         .remove = bfad_pci_remove,
1700         .err_handler = &bfad_err_handler,
1701 };
1702
1703 /*
1704  * Driver module init.
1705  */
1706 static int __init
1707 bfad_init(void)
1708 {
1709         int             error = 0;
1710
1711         printk(KERN_INFO "Brocade BFA FC/FCOE SCSI driver - version: %s\n",
1712                         BFAD_DRIVER_VERSION);
1713
1714         if (num_sgpgs > 0)
1715                 num_sgpgs_parm = num_sgpgs;
1716
1717         error = bfad_im_module_init();
1718         if (error) {
1719                 error = -ENOMEM;
1720                 printk(KERN_WARNING "bfad_im_module_init failure\n");
1721                 goto ext;
1722         }
1723
1724         if (strcmp(FCPI_NAME, " fcpim") == 0)
1725                 supported_fc4s |= BFA_LPORT_ROLE_FCP_IM;
1726
1727         bfa_auto_recover = ioc_auto_recover;
1728         bfa_fcs_rport_set_del_timeout(rport_del_timeout);
1729         bfa_fcs_rport_set_max_logins(max_rport_logins);
1730
1731         error = pci_register_driver(&bfad_pci_driver);
1732         if (error) {
1733                 printk(KERN_WARNING "pci_register_driver failure\n");
1734                 goto ext;
1735         }
1736
1737         return 0;
1738
1739 ext:
1740         bfad_im_module_exit();
1741         return error;
1742 }
1743
1744 /*
1745  * Driver module exit.
1746  */
1747 static void __exit
1748 bfad_exit(void)
1749 {
1750         pci_unregister_driver(&bfad_pci_driver);
1751         bfad_im_module_exit();
1752         bfad_free_fwimg();
1753 }
1754
1755 /* Firmware handling */
1756 static void
1757 bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
1758                 u32 *bfi_image_size, char *fw_name)
1759 {
1760         const struct firmware *fw;
1761
1762         if (reject_firmware(&fw, fw_name, &pdev->dev)) {
1763                 printk(KERN_ALERT "Can't locate firmware %s\n", fw_name);
1764                 *bfi_image = NULL;
1765                 goto out;
1766         }
1767
1768         *bfi_image = vmalloc(fw->size);
1769         if (NULL == *bfi_image) {
1770                 printk(KERN_ALERT "Fail to allocate buffer for fw image "
1771                         "size=%x!\n", (u32) fw->size);
1772                 goto out;
1773         }
1774
1775         memcpy(*bfi_image, fw->data, fw->size);
1776         *bfi_image_size = fw->size/sizeof(u32);
1777 out:
1778         release_firmware(fw);
1779 }
1780
1781 static u32 *
1782 bfad_load_fwimg(struct pci_dev *pdev)
1783 {
1784         if (bfa_asic_id_ct2(pdev->device)) {
1785                 if (bfi_image_ct2_size == 0)
1786                         bfad_read_firmware(pdev, &bfi_image_ct2,
1787                                 &bfi_image_ct2_size, BFAD_FW_FILE_CT2);
1788                 return bfi_image_ct2;
1789         } else if (bfa_asic_id_ct(pdev->device)) {
1790                 if (bfi_image_ct_size == 0)
1791                         bfad_read_firmware(pdev, &bfi_image_ct,
1792                                 &bfi_image_ct_size, BFAD_FW_FILE_CT);
1793                 return bfi_image_ct;
1794         } else if (bfa_asic_id_cb(pdev->device)) {
1795                 if (bfi_image_cb_size == 0)
1796                         bfad_read_firmware(pdev, &bfi_image_cb,
1797                                 &bfi_image_cb_size, BFAD_FW_FILE_CB);
1798                 return bfi_image_cb;
1799         }
1800
1801         return NULL;
1802 }
1803
1804 static void
1805 bfad_free_fwimg(void)
1806 {
1807         if (bfi_image_ct2_size && bfi_image_ct2)
1808                 vfree(bfi_image_ct2);
1809         if (bfi_image_ct_size && bfi_image_ct)
1810                 vfree(bfi_image_ct);
1811         if (bfi_image_cb_size && bfi_image_cb)
1812                 vfree(bfi_image_cb);
1813 }
1814
1815 module_init(bfad_init);
1816 module_exit(bfad_exit);
1817 MODULE_LICENSE("GPL");
1818 MODULE_DESCRIPTION("Brocade Fibre Channel HBA Driver" BFAD_PROTO_NAME);
1819 MODULE_AUTHOR("Brocade Communications Systems, Inc.");
1820 MODULE_VERSION(BFAD_DRIVER_VERSION);