Pileus Git - ~andy/linux/blob - 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
  61 /* Firmware releated */
  62 u32     bfi_image_cb_size, bfi_image_ct_size, bfi_image_ct2_size;
  63 u32     *bfi_image_cb, *bfi_image_ct, *bfi_image_ct2;
  64
  65 #define BFAD_FW_FILE_CB         "cbfw.bin"
  66 #define BFAD_FW_FILE_CT         "ctfw.bin"
  67 #define BFAD_FW_FILE_CT2        "ct2fw.bin"
  68
  69 static u32 *bfad_load_fwimg(struct pci_dev *pdev);
  70 static void bfad_free_fwimg(void);
  71 static void bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
  72                 u32 *bfi_image_size, char *fw_name);
  73
  74 static const char *msix_name_ct[] = {
  75         "ctrl",
  76         "cpe0", "cpe1", "cpe2", "cpe3",
  77         "rme0", "rme1", "rme2", "rme3" };
  78
  79 static const char *msix_name_cb[] = {
  80         "cpe0", "cpe1", "cpe2", "cpe3",
  81         "rme0", "rme1", "rme2", "rme3",
  82         "eemc", "elpu0", "elpu1", "epss", "mlpu" };
  83
  84 MODULE_FIRMWARE(BFAD_FW_FILE_CB);
  85 MODULE_FIRMWARE(BFAD_FW_FILE_CT);
  86 MODULE_FIRMWARE(BFAD_FW_FILE_CT2);
  87
  88 module_param(os_name, charp, S_IRUGO | S_IWUSR);
  89 MODULE_PARM_DESC(os_name, "OS name of the hba host machine");
  90 module_param(os_patch, charp, S_IRUGO | S_IWUSR);
  91 MODULE_PARM_DESC(os_patch, "OS patch level of the hba host machine");
  92 module_param(host_name, charp, S_IRUGO | S_IWUSR);
  93 MODULE_PARM_DESC(host_name, "Hostname of the hba host machine");
  94 module_param(num_rports, int, S_IRUGO | S_IWUSR);
  95 MODULE_PARM_DESC(num_rports, "Max number of rports supported per port "
  96                                 "(physical/logical), default=1024");
  97 module_param(num_ios, int, S_IRUGO | S_IWUSR);
  98 MODULE_PARM_DESC(num_ios, "Max number of ioim requests, default=2000");
  99 module_param(num_tms, int, S_IRUGO | S_IWUSR);
 100 MODULE_PARM_DESC(num_tms, "Max number of task im requests, default=128");
 101 module_param(num_fcxps, int, S_IRUGO | S_IWUSR);
 102 MODULE_PARM_DESC(num_fcxps, "Max number of fcxp requests, default=64");
 103 module_param(num_ufbufs, int, S_IRUGO | S_IWUSR);
 104 MODULE_PARM_DESC(num_ufbufs, "Max number of unsolicited frame "
 105                                 "buffers, default=64");
 106 module_param(reqq_size, int, S_IRUGO | S_IWUSR);
 107 MODULE_PARM_DESC(reqq_size, "Max number of request queue elements, "
 108                                 "default=256");
 109 module_param(rspq_size, int, S_IRUGO | S_IWUSR);
 110 MODULE_PARM_DESC(rspq_size, "Max number of response queue elements, "
 111                                 "default=64");
 112 module_param(num_sgpgs, int, S_IRUGO | S_IWUSR);
 113 MODULE_PARM_DESC(num_sgpgs, "Number of scatter/gather pages, default=2048");
 114 module_param(rport_del_timeout, int, S_IRUGO | S_IWUSR);
 115 MODULE_PARM_DESC(rport_del_timeout, "Rport delete timeout, default=90 secs, "
 116                                         "Range[>0]");
 117 module_param(bfa_lun_queue_depth, int, S_IRUGO | S_IWUSR);
 118 MODULE_PARM_DESC(bfa_lun_queue_depth, "Lun queue depth, default=32, Range[>0]");
 119 module_param(bfa_io_max_sge, int, S_IRUGO | S_IWUSR);
 120 MODULE_PARM_DESC(bfa_io_max_sge, "Max io scatter/gather elements, default=255");
 121 module_param(bfa_log_level, int, S_IRUGO | S_IWUSR);
 122 MODULE_PARM_DESC(bfa_log_level, "Driver log level, default=3, "
 123                                 "Range[Critical:1|Error:2|Warning:3|Info:4]");
 124 module_param(ioc_auto_recover, int, S_IRUGO | S_IWUSR);
 125 MODULE_PARM_DESC(ioc_auto_recover, "IOC auto recovery, default=1, "
 126                                 "Range[off:0|on:1]");
 127 module_param(bfa_linkup_delay, int, S_IRUGO | S_IWUSR);
 128 MODULE_PARM_DESC(bfa_linkup_delay, "Link up delay, default=30 secs for "
 129                         "boot port. Otherwise 10 secs in RHEL4 & 0 for "
 130                         "[RHEL5, SLES10, ESX40] Range[>0]");
 131 module_param(msix_disable_cb, int, S_IRUGO | S_IWUSR);
 132 MODULE_PARM_DESC(msix_disable_cb, "Disable Message Signaled Interrupts "
 133                         "for Brocade-415/425/815/825 cards, default=0, "
 134                         " Range[false:0|true:1]");
 135 module_param(msix_disable_ct, int, S_IRUGO | S_IWUSR);
 136 MODULE_PARM_DESC(msix_disable_ct, "Disable Message Signaled Interrupts "
 137                         "if possible for Brocade-1010/1020/804/1007/902/1741 "
 138                         "cards, default=0, Range[false:0|true:1]");
 139 module_param(fdmi_enable, int, S_IRUGO | S_IWUSR);
 140 MODULE_PARM_DESC(fdmi_enable, "Enables fdmi registration, default=1, "
 141                                 "Range[false:0|true:1]");
 142 module_param(pcie_max_read_reqsz, int, S_IRUGO | S_IWUSR);
 143 MODULE_PARM_DESC(pcie_max_read_reqsz, "PCIe max read request size, default=0 "
 144                 "(use system setting), Range[128|256|512|1024|2048|4096]");
 145 module_param(bfa_debugfs_enable, int, S_IRUGO | S_IWUSR);
 146 MODULE_PARM_DESC(bfa_debugfs_enable, "Enables debugfs feature, default=1,"
 147                 " Range[false:0|true:1]");
 148 module_param(max_xfer_size, int, S_IRUGO | S_IWUSR);
 149 MODULE_PARM_DESC(max_xfer_size, "default=32MB,"
 150                 " Range[64k|128k|256k|512k|1024k|2048k]");
 151
 152 static void
 153 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event);
 154 static void
 155 bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event);
 156 static void
 157 bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event);
 158 static void
 159 bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event);
 160 static void
 161 bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event);
 162 static void
 163 bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event);
 164 static void
 165 bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event);
 166
 167 /*
 168  * Beginning state for the driver instance, awaiting the pci_probe event
 169  */
 170 static void
 171 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event)
 172 {
 173         bfa_trc(bfad, event);
 174
 175         switch (event) {
 176         case BFAD_E_CREATE:
 177                 bfa_sm_set_state(bfad, bfad_sm_created);
 178                 bfad->bfad_tsk = kthread_create(bfad_worker, (void *) bfad,
 179                                                 "%s", "bfad_worker");
 180                 if (IS_ERR(bfad->bfad_tsk)) {
 181                         printk(KERN_INFO "bfad[%d]: Kernel thread "
 182                                 "creation failed!\n", bfad->inst_no);
 183                         bfa_sm_send_event(bfad, BFAD_E_KTHREAD_CREATE_FAILED);
 184                 }
 185                 bfa_sm_send_event(bfad, BFAD_E_INIT);
 186                 break;
 187
 188         case BFAD_E_STOP:
 189                 /* Ignore stop; already in uninit */
 190                 break;
 191
 192         default:
 193                 bfa_sm_fault(bfad, event);
 194         }
 195 }
 196
 197 /*
 198  * Driver Instance is created, awaiting event INIT to initialize the bfad
 199  */
 200 static void
 201 bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event)
 202 {
 203         unsigned long flags;
 204
 205         bfa_trc(bfad, event);
 206
 207         switch (event) {
 208         case BFAD_E_INIT:
 209                 bfa_sm_set_state(bfad, bfad_sm_initializing);
 210
 211                 init_completion(&bfad->comp);
 212
 213                 /* Enable Interrupt and wait bfa_init completion */
 214                 if (bfad_setup_intr(bfad)) {
 215                         printk(KERN_WARNING "bfad%d: bfad_setup_intr failed\n",
 216                                         bfad->inst_no);
 217                         bfa_sm_send_event(bfad, BFAD_E_INTR_INIT_FAILED);
 218                         break;
 219                 }
 220
 221                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 222                 bfa_iocfc_init(&bfad->bfa);
 223                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 224
 225                 /* Set up interrupt handler for each vectors */
 226                 if ((bfad->bfad_flags & BFAD_MSIX_ON) &&
 227                         bfad_install_msix_handler(bfad)) {
 228                         printk(KERN_WARNING "%s: install_msix failed, bfad%d\n",
 229                                 __func__, bfad->inst_no);
 230                 }
 231
 232                 bfad_init_timer(bfad);
 233
 234                 wait_for_completion(&bfad->comp);
 235
 236                 if ((bfad->bfad_flags & BFAD_HAL_INIT_DONE)) {
 237                         bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS);
 238                 } else {
 239                         printk(KERN_WARNING
 240                                 "bfa %s: bfa init failed\n",
 241                                 bfad->pci_name);
 242                         bfad->bfad_flags |= BFAD_HAL_INIT_FAIL;
 243                         bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
 244                 }
 245
 246                 break;
 247
 248         case BFAD_E_KTHREAD_CREATE_FAILED:
 249                 bfa_sm_set_state(bfad, bfad_sm_uninit);
 250                 break;
 251
 252         default:
 253                 bfa_sm_fault(bfad, event);
 254         }
 255 }
 256
 257 static void
 258 bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event)
 259 {
 260         int     retval;
 261         unsigned long   flags;
 262
 263         bfa_trc(bfad, event);
 264
 265         switch (event) {
 266         case BFAD_E_INIT_SUCCESS:
 267                 kthread_stop(bfad->bfad_tsk);
 268                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 269                 bfad->bfad_tsk = NULL;
 270                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 271
 272                 retval = bfad_start_ops(bfad);
 273                 if (retval != BFA_STATUS_OK)
 274                         break;
 275                 bfa_sm_set_state(bfad, bfad_sm_operational);
 276                 break;
 277
 278         case BFAD_E_INTR_INIT_FAILED:
 279                 bfa_sm_set_state(bfad, bfad_sm_uninit);
 280                 kthread_stop(bfad->bfad_tsk);
 281                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 282                 bfad->bfad_tsk = NULL;
 283                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 284                 break;
 285
 286         case BFAD_E_INIT_FAILED:
 287                 bfa_sm_set_state(bfad, bfad_sm_failed);
 288                 break;
 289         default:
 290                 bfa_sm_fault(bfad, event);
 291         }
 292 }
 293
 294 static void
 295 bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event)
 296 {
 297         int     retval;
 298
 299         bfa_trc(bfad, event);
 300
 301         switch (event) {
 302         case BFAD_E_INIT_SUCCESS:
 303                 retval = bfad_start_ops(bfad);
 304                 if (retval != BFA_STATUS_OK)
 305                         break;
 306                 bfa_sm_set_state(bfad, bfad_sm_operational);
 307                 break;
 308
 309         case BFAD_E_STOP:
 310                 if (bfad->bfad_flags & BFAD_CFG_PPORT_DONE)
 311                         bfad_uncfg_pport(bfad);
 312                 if (bfad->bfad_flags & BFAD_FC4_PROBE_DONE) {
 313                         bfad_im_probe_undo(bfad);
 314                         bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE;
 315                 }
 316                 bfad_stop(bfad);
 317                 break;
 318
 319         case BFAD_E_EXIT_COMP:
 320                 bfa_sm_set_state(bfad, bfad_sm_uninit);
 321                 bfad_remove_intr(bfad);
 322                 del_timer_sync(&bfad->hal_tmo);
 323                 break;
 324
 325         default:
 326                 bfa_sm_fault(bfad, event);
 327         }
 328 }
 329
 330 static void
 331 bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event)
 332 {
 333         bfa_trc(bfad, event);
 334
 335         switch (event) {
 336         case BFAD_E_STOP:
 337                 bfa_sm_set_state(bfad, bfad_sm_fcs_exit);
 338                 bfad_fcs_stop(bfad);
 339                 break;
 340
 341         default:
 342                 bfa_sm_fault(bfad, event);
 343         }
 344 }
 345
 346 static void
 347 bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event)
 348 {
 349         bfa_trc(bfad, event);
 350
 351         switch (event) {
 352         case BFAD_E_FCS_EXIT_COMP:
 353                 bfa_sm_set_state(bfad, bfad_sm_stopping);
 354                 bfad_stop(bfad);
 355                 break;
 356
 357         default:
 358                 bfa_sm_fault(bfad, event);
 359         }
 360 }
 361
 362 static void
 363 bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event)
 364 {
 365         bfa_trc(bfad, event);
 366
 367         switch (event) {
 368         case BFAD_E_EXIT_COMP:
 369                 bfa_sm_set_state(bfad, bfad_sm_uninit);
 370                 bfad_remove_intr(bfad);
 371                 del_timer_sync(&bfad->hal_tmo);
 372                 bfad_im_probe_undo(bfad);
 373                 bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE;
 374                 bfad_uncfg_pport(bfad);
 375                 break;
 376
 377         default:
 378                 bfa_sm_fault(bfad, event);
 379                 break;
 380         }
 381 }
 382
 383 /*
 384  *  BFA callbacks
 385  */
 386 void
 387 bfad_hcb_comp(void *arg, bfa_status_t status)
 388 {
 389         struct bfad_hal_comp *fcomp = (struct bfad_hal_comp *)arg;
 390
 391         fcomp->status = status;
 392         complete(&fcomp->comp);
 393 }
 394
 395 /*
 396  * bfa_init callback
 397  */
 398 void
 399 bfa_cb_init(void *drv, bfa_status_t init_status)
 400 {
 401         struct bfad_s         *bfad = drv;
 402
 403         if (init_status == BFA_STATUS_OK) {
 404                 bfad->bfad_flags |= BFAD_HAL_INIT_DONE;
 405
 406                 /*
 407                  * If BFAD_HAL_INIT_FAIL flag is set:
 408                  * Wake up the kernel thread to start
 409                  * the bfad operations after HAL init done
 410                  */
 411                 if ((bfad->bfad_flags & BFAD_HAL_INIT_FAIL)) {
 412                         bfad->bfad_flags &= ~BFAD_HAL_INIT_FAIL;
 413                         wake_up_process(bfad->bfad_tsk);
 414                 }
 415         }
 416
 417         complete(&bfad->comp);
 418 }
 419
 420 /*
 421  *  BFA_FCS callbacks
 422  */
 423 struct bfad_port_s *
 424 bfa_fcb_lport_new(struct bfad_s *bfad, struct bfa_fcs_lport_s *port,
 425                  enum bfa_lport_role roles, struct bfad_vf_s *vf_drv,
 426                  struct bfad_vport_s *vp_drv)
 427 {
 428         bfa_status_t    rc;
 429         struct bfad_port_s    *port_drv;
 430
 431         if (!vp_drv && !vf_drv) {
 432                 port_drv = &bfad->pport;
 433                 port_drv->pvb_type = BFAD_PORT_PHYS_BASE;
 434         } else if (!vp_drv && vf_drv) {
 435                 port_drv = &vf_drv->base_port;
 436                 port_drv->pvb_type = BFAD_PORT_VF_BASE;
 437         } else if (vp_drv && !vf_drv) {
 438                 port_drv = &vp_drv->drv_port;
 439                 port_drv->pvb_type = BFAD_PORT_PHYS_VPORT;
 440         } else {
 441                 port_drv = &vp_drv->drv_port;
 442                 port_drv->pvb_type = BFAD_PORT_VF_VPORT;
 443         }
 444
 445         port_drv->fcs_port = port;
 446         port_drv->roles = roles;
 447
 448         if (roles & BFA_LPORT_ROLE_FCP_IM) {
 449                 rc = bfad_im_port_new(bfad, port_drv);
 450                 if (rc != BFA_STATUS_OK) {
 451                         bfad_im_port_delete(bfad, port_drv);
 452                         port_drv = NULL;
 453                 }
 454         }
 455
 456         return port_drv;
 457 }
 458
 459 void
 460 bfa_fcb_lport_delete(struct bfad_s *bfad, enum bfa_lport_role roles,
 461                     struct bfad_vf_s *vf_drv, struct bfad_vport_s *vp_drv)
 462 {
 463         struct bfad_port_s    *port_drv;
 464
 465         /* this will be only called from rmmod context */
 466         if (vp_drv && !vp_drv->comp_del) {
 467                 port_drv = (vp_drv) ? (&(vp_drv)->drv_port) :
 468                                 ((vf_drv) ? (&(vf_drv)->base_port) :
 469                                 (&(bfad)->pport));
 470                 bfa_trc(bfad, roles);
 471                 if (roles & BFA_LPORT_ROLE_FCP_IM)
 472                         bfad_im_port_delete(bfad, port_drv);
 473         }
 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_KERNEL);
 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         bfad->pci_bar0_kva = pci_iomap(pdev, 0, pci_resource_len(pdev, 0));
 757         bfad->pci_bar2_kva = pci_iomap(pdev, 2, pci_resource_len(pdev, 2));
 758
 759         if (bfad->pci_bar0_kva == NULL) {
 760                 printk(KERN_ERR "Fail to map bar0\n");
 761                 goto out_release_region;
 762         }
 763
 764         bfad->hal_pcidev.pci_slot = PCI_SLOT(pdev->devfn);
 765         bfad->hal_pcidev.pci_func = PCI_FUNC(pdev->devfn);
 766         bfad->hal_pcidev.pci_bar_kva = bfad->pci_bar0_kva;
 767         bfad->hal_pcidev.device_id = pdev->device;
 768         bfad->hal_pcidev.ssid = pdev->subsystem_device;
 769         bfad->pci_name = pci_name(pdev);
 770
 771         bfad->pci_attr.vendor_id = pdev->vendor;
 772         bfad->pci_attr.device_id = pdev->device;
 773         bfad->pci_attr.ssid = pdev->subsystem_device;
 774         bfad->pci_attr.ssvid = pdev->subsystem_vendor;
 775         bfad->pci_attr.pcifn = PCI_FUNC(pdev->devfn);
 776
 777         bfad->pcidev = pdev;
 778
 779         /* Adjust PCIe Maximum Read Request Size */
 780         if (pcie_max_read_reqsz > 0) {
 781                 int pcie_cap_reg;
 782                 u16 pcie_dev_ctl;
 783                 u16 mask = 0xffff;
 784
 785                 switch (pcie_max_read_reqsz) {
 786                 case 128:
 787                         mask = 0x0;
 788                         break;
 789                 case 256:
 790                         mask = 0x1000;
 791                         break;
 792                 case 512:
 793                         mask = 0x2000;
 794                         break;
 795                 case 1024:
 796                         mask = 0x3000;
 797                         break;
 798                 case 2048:
 799                         mask = 0x4000;
 800                         break;
 801                 case 4096:
 802                         mask = 0x5000;
 803                         break;
 804                 default:
 805                         break;
 806                 }
 807
 808                 pcie_cap_reg = pci_find_capability(pdev, PCI_CAP_ID_EXP);
 809                 if (mask != 0xffff && pcie_cap_reg) {
 810                         pcie_cap_reg += 0x08;
 811                         pci_read_config_word(pdev, pcie_cap_reg, &pcie_dev_ctl);
 812                         if ((pcie_dev_ctl & 0x7000) != mask) {
 813                                 printk(KERN_WARNING "BFA[%s]: "
 814                                 "pcie_max_read_request_size is %d, "
 815                                 "reset to %d\n", bfad->pci_name,
 816                                 (1 << ((pcie_dev_ctl & 0x7000) >> 12)) << 7,
 817                                 pcie_max_read_reqsz);
 818
 819                                 pcie_dev_ctl &= ~0x7000;
 820                                 pci_write_config_word(pdev, pcie_cap_reg,
 821                                                 pcie_dev_ctl | mask);
 822                         }
 823                 }
 824         }
 825
 826         return 0;
 827
 828 out_release_region:
 829         pci_release_regions(pdev);
 830 out_disable_device:
 831         pci_disable_device(pdev);
 832 out:
 833         return rc;
 834 }
 835
 836 void
 837 bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad)
 838 {
 839         pci_iounmap(pdev, bfad->pci_bar0_kva);
 840         pci_iounmap(pdev, bfad->pci_bar2_kva);
 841         pci_release_regions(pdev);
 842         pci_disable_device(pdev);
 843         pci_set_drvdata(pdev, NULL);
 844 }
 845
 846 bfa_status_t
 847 bfad_drv_init(struct bfad_s *bfad)
 848 {
 849         bfa_status_t    rc;
 850         unsigned long   flags;
 851
 852         bfad->cfg_data.rport_del_timeout = rport_del_timeout;
 853         bfad->cfg_data.lun_queue_depth = bfa_lun_queue_depth;
 854         bfad->cfg_data.io_max_sge = bfa_io_max_sge;
 855         bfad->cfg_data.binding_method = FCP_PWWN_BINDING;
 856
 857         rc = bfad_hal_mem_alloc(bfad);
 858         if (rc != BFA_STATUS_OK) {
 859                 printk(KERN_WARNING "bfad%d bfad_hal_mem_alloc failure\n",
 860                        bfad->inst_no);
 861                 printk(KERN_WARNING
 862                         "Not enough memory to attach all Brocade HBA ports, %s",
 863                         "System may need more memory.\n");
 864                 goto out_hal_mem_alloc_failure;
 865         }
 866
 867         bfad->bfa.trcmod = bfad->trcmod;
 868         bfad->bfa.plog = &bfad->plog_buf;
 869         bfa_plog_init(&bfad->plog_buf);
 870         bfa_plog_str(&bfad->plog_buf, BFA_PL_MID_DRVR, BFA_PL_EID_DRIVER_START,
 871                      0, "Driver Attach");
 872
 873         bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg, &bfad->meminfo,
 874                    &bfad->hal_pcidev);
 875
 876         /* FCS INIT */
 877         spin_lock_irqsave(&bfad->bfad_lock, flags);
 878         bfad->bfa_fcs.trcmod = bfad->trcmod;
 879         bfa_fcs_attach(&bfad->bfa_fcs, &bfad->bfa, bfad, BFA_FALSE);
 880         bfad->bfa_fcs.fdmi_enabled = fdmi_enable;
 881         bfa_fcs_init(&bfad->bfa_fcs);
 882         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 883
 884         bfad->bfad_flags |= BFAD_DRV_INIT_DONE;
 885
 886         /* configure base port */
 887         rc = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM);
 888         if (rc != BFA_STATUS_OK)
 889                 goto out_cfg_pport_fail;
 890
 891         return BFA_STATUS_OK;
 892
 893 out_cfg_pport_fail:
 894         /* fcs exit - on cfg pport failure */
 895         spin_lock_irqsave(&bfad->bfad_lock, flags);
 896         init_completion(&bfad->comp);
 897         bfad->pport.flags |= BFAD_PORT_DELETE;
 898         bfa_fcs_exit(&bfad->bfa_fcs);
 899         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 900         wait_for_completion(&bfad->comp);
 901         /* bfa detach - free hal memory */
 902         bfa_detach(&bfad->bfa);
 903         bfad_hal_mem_release(bfad);
 904 out_hal_mem_alloc_failure:
 905         return BFA_STATUS_FAILED;
 906 }
 907
 908 void
 909 bfad_drv_uninit(struct bfad_s *bfad)
 910 {
 911         unsigned long   flags;
 912
 913         spin_lock_irqsave(&bfad->bfad_lock, flags);
 914         init_completion(&bfad->comp);
 915         bfa_iocfc_stop(&bfad->bfa);
 916         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 917         wait_for_completion(&bfad->comp);
 918
 919         del_timer_sync(&bfad->hal_tmo);
 920         bfa_isr_disable(&bfad->bfa);
 921         bfa_detach(&bfad->bfa);
 922         bfad_remove_intr(bfad);
 923         bfad_hal_mem_release(bfad);
 924
 925         bfad->bfad_flags &= ~BFAD_DRV_INIT_DONE;
 926 }
 927
 928 void
 929 bfad_drv_start(struct bfad_s *bfad)
 930 {
 931         unsigned long   flags;
 932
 933         spin_lock_irqsave(&bfad->bfad_lock, flags);
 934         bfa_iocfc_start(&bfad->bfa);
 935         bfa_fcs_pbc_vport_init(&bfad->bfa_fcs);
 936         bfa_fcs_fabric_modstart(&bfad->bfa_fcs);
 937         bfad->bfad_flags |= BFAD_HAL_START_DONE;
 938         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 939
 940         if (bfad->im)
 941                 flush_workqueue(bfad->im->drv_workq);
 942 }
 943
 944 void
 945 bfad_fcs_stop(struct bfad_s *bfad)
 946 {
 947         unsigned long   flags;
 948
 949         spin_lock_irqsave(&bfad->bfad_lock, flags);
 950         init_completion(&bfad->comp);
 951         bfad->pport.flags |= BFAD_PORT_DELETE;
 952         bfa_fcs_exit(&bfad->bfa_fcs);
 953         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 954         wait_for_completion(&bfad->comp);
 955
 956         bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP);
 957 }
 958
 959 void
 960 bfad_stop(struct bfad_s *bfad)
 961 {
 962         unsigned long   flags;
 963
 964         spin_lock_irqsave(&bfad->bfad_lock, flags);
 965         init_completion(&bfad->comp);
 966         bfa_iocfc_stop(&bfad->bfa);
 967         bfad->bfad_flags &= ~BFAD_HAL_START_DONE;
 968         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 969         wait_for_completion(&bfad->comp);
 970
 971         bfa_sm_send_event(bfad, BFAD_E_EXIT_COMP);
 972 }
 973
 974 bfa_status_t
 975 bfad_cfg_pport(struct bfad_s *bfad, enum bfa_lport_role role)
 976 {
 977         int             rc = BFA_STATUS_OK;
 978
 979         /* Allocate scsi_host for the physical port */
 980         if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) &&
 981             (role & BFA_LPORT_ROLE_FCP_IM)) {
 982                 if (bfad->pport.im_port == NULL) {
 983                         rc = BFA_STATUS_FAILED;
 984                         goto out;
 985                 }
 986
 987                 rc = bfad_im_scsi_host_alloc(bfad, bfad->pport.im_port,
 988                                                 &bfad->pcidev->dev);
 989                 if (rc != BFA_STATUS_OK)
 990                         goto out;
 991
 992                 bfad->pport.roles |= BFA_LPORT_ROLE_FCP_IM;
 993         }
 994
 995         bfad->bfad_flags |= BFAD_CFG_PPORT_DONE;
 996
 997 out:
 998         return rc;
 999 }
1000
1001 void
1002 bfad_uncfg_pport(struct bfad_s *bfad)
1003 {
1004         if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) &&
1005             (bfad->pport.roles & BFA_LPORT_ROLE_FCP_IM)) {
1006                 bfad_im_scsi_host_free(bfad, bfad->pport.im_port);
1007                 bfad_im_port_clean(bfad->pport.im_port);
1008                 kfree(bfad->pport.im_port);
1009                 bfad->pport.roles &= ~BFA_LPORT_ROLE_FCP_IM;
1010         }
1011
1012         bfad->bfad_flags &= ~BFAD_CFG_PPORT_DONE;
1013 }
1014
1015 bfa_status_t
1016 bfad_start_ops(struct bfad_s *bfad) {
1017
1018         int     retval;
1019         unsigned long   flags;
1020         struct bfad_vport_s *vport, *vport_new;
1021         struct bfa_fcs_driver_info_s driver_info;
1022
1023         /* Limit min/max. xfer size to [64k-32MB] */
1024         if (max_xfer_size < BFAD_MIN_SECTORS >> 1)
1025                 max_xfer_size = BFAD_MIN_SECTORS >> 1;
1026         if (max_xfer_size > BFAD_MAX_SECTORS >> 1)
1027                 max_xfer_size = BFAD_MAX_SECTORS >> 1;
1028
1029         /* Fill the driver_info info to fcs*/
1030         memset(&driver_info, 0, sizeof(driver_info));
1031         strncpy(driver_info.version, BFAD_DRIVER_VERSION,
1032                 sizeof(driver_info.version) - 1);
1033         if (host_name)
1034                 strncpy(driver_info.host_machine_name, host_name,
1035                         sizeof(driver_info.host_machine_name) - 1);
1036         if (os_name)
1037                 strncpy(driver_info.host_os_name, os_name,
1038                         sizeof(driver_info.host_os_name) - 1);
1039         if (os_patch)
1040                 strncpy(driver_info.host_os_patch, os_patch,
1041                         sizeof(driver_info.host_os_patch) - 1);
1042
1043         strncpy(driver_info.os_device_name, bfad->pci_name,
1044                 sizeof(driver_info.os_device_name - 1));
1045
1046         /* FCS driver info init */
1047         spin_lock_irqsave(&bfad->bfad_lock, flags);
1048         bfa_fcs_driver_info_init(&bfad->bfa_fcs, &driver_info);
1049         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1050
1051         /*
1052          * FCS update cfg - reset the pwwn/nwwn of fabric base logical port
1053          * with values learned during bfa_init firmware GETATTR REQ.
1054          */
1055         bfa_fcs_update_cfg(&bfad->bfa_fcs);
1056
1057         /* Setup fc host fixed attribute if the lk supports */
1058         bfad_fc_host_init(bfad->pport.im_port);
1059
1060         /* BFAD level FC4 IM specific resource allocation */
1061         retval = bfad_im_probe(bfad);
1062         if (retval != BFA_STATUS_OK) {
1063                 printk(KERN_WARNING "bfad_im_probe failed\n");
1064                 if (bfa_sm_cmp_state(bfad, bfad_sm_initializing))
1065                         bfa_sm_set_state(bfad, bfad_sm_failed);
1066                 bfad_im_probe_undo(bfad);
1067                 bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE;
1068                 bfad_uncfg_pport(bfad);
1069                 bfad_stop(bfad);
1070                 return BFA_STATUS_FAILED;
1071         } else
1072                 bfad->bfad_flags |= BFAD_FC4_PROBE_DONE;
1073
1074         bfad_drv_start(bfad);
1075
1076         /* Complete pbc vport create */
1077         list_for_each_entry_safe(vport, vport_new, &bfad->pbc_vport_list,
1078                                 list_entry) {
1079                 struct fc_vport_identifiers vid;
1080                 struct fc_vport *fc_vport;
1081                 char pwwn_buf[BFA_STRING_32];
1082
1083                 memset(&vid, 0, sizeof(vid));
1084                 vid.roles = FC_PORT_ROLE_FCP_INITIATOR;
1085                 vid.vport_type = FC_PORTTYPE_NPIV;
1086                 vid.disable = false;
1087                 vid.node_name = wwn_to_u64((u8 *)
1088                                 (&((vport->fcs_vport).lport.port_cfg.nwwn)));
1089                 vid.port_name = wwn_to_u64((u8 *)
1090                                 (&((vport->fcs_vport).lport.port_cfg.pwwn)));
1091                 fc_vport = fc_vport_create(bfad->pport.im_port->shost, 0, &vid);
1092                 if (!fc_vport) {
1093                         wwn2str(pwwn_buf, vid.port_name);
1094                         printk(KERN_WARNING "bfad%d: failed to create pbc vport"
1095                                 " %s\n", bfad->inst_no, pwwn_buf);
1096                 }
1097                 list_del(&vport->list_entry);
1098                 kfree(vport);
1099         }
1100
1101         /*
1102          * If bfa_linkup_delay is set to -1 default; try to retrive the
1103          * value using the bfad_get_linkup_delay(); else use the
1104          * passed in module param value as the bfa_linkup_delay.
1105          */
1106         if (bfa_linkup_delay < 0) {
1107                 bfa_linkup_delay = bfad_get_linkup_delay(bfad);
1108                 bfad_rport_online_wait(bfad);
1109                 bfa_linkup_delay = -1;
1110         } else
1111                 bfad_rport_online_wait(bfad);
1112
1113         BFA_LOG(KERN_INFO, bfad, bfa_log_level, "bfa device claimed\n");
1114
1115         return BFA_STATUS_OK;
1116 }
1117
1118 int
1119 bfad_worker(void *ptr)
1120 {
1121         struct bfad_s *bfad;
1122         unsigned long   flags;
1123
1124         bfad = (struct bfad_s *)ptr;
1125
1126         while (!kthread_should_stop()) {
1127
1128                 /* Send event BFAD_E_INIT_SUCCESS */
1129                 bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS);
1130
1131                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1132                 bfad->bfad_tsk = NULL;
1133                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1134
1135                 break;
1136         }
1137
1138         return 0;
1139 }
1140
1141 /*
1142  *  BFA driver interrupt functions
1143  */
1144 irqreturn_t
1145 bfad_intx(int irq, void *dev_id)
1146 {
1147         struct bfad_s   *bfad = dev_id;
1148         struct list_head        doneq;
1149         unsigned long   flags;
1150         bfa_boolean_t rc;
1151
1152         spin_lock_irqsave(&bfad->bfad_lock, flags);
1153         rc = bfa_intx(&bfad->bfa);
1154         if (!rc) {
1155                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1156                 return IRQ_NONE;
1157         }
1158
1159         bfa_comp_deq(&bfad->bfa, &doneq);
1160         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1161
1162         if (!list_empty(&doneq)) {
1163                 bfa_comp_process(&bfad->bfa, &doneq);
1164
1165                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1166                 bfa_comp_free(&bfad->bfa, &doneq);
1167                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1168         }
1169
1170         return IRQ_HANDLED;
1171
1172 }
1173
1174 static irqreturn_t
1175 bfad_msix(int irq, void *dev_id)
1176 {
1177         struct bfad_msix_s *vec = dev_id;
1178         struct bfad_s *bfad = vec->bfad;
1179         struct list_head doneq;
1180         unsigned long   flags;
1181
1182         spin_lock_irqsave(&bfad->bfad_lock, flags);
1183
1184         bfa_msix(&bfad->bfa, vec->msix.entry);
1185         bfa_comp_deq(&bfad->bfa, &doneq);
1186         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1187
1188         if (!list_empty(&doneq)) {
1189                 bfa_comp_process(&bfad->bfa, &doneq);
1190
1191                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1192                 bfa_comp_free(&bfad->bfa, &doneq);
1193                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1194         }
1195
1196         return IRQ_HANDLED;
1197 }
1198
1199 /*
1200  * Initialize the MSIX entry table.
1201  */
1202 static void
1203 bfad_init_msix_entry(struct bfad_s *bfad, struct msix_entry *msix_entries,
1204                          int mask, int max_bit)
1205 {
1206         int     i;
1207         int     match = 0x00000001;
1208
1209         for (i = 0, bfad->nvec = 0; i < MAX_MSIX_ENTRY; i++) {
1210                 if (mask & match) {
1211                         bfad->msix_tab[bfad->nvec].msix.entry = i;
1212                         bfad->msix_tab[bfad->nvec].bfad = bfad;
1213                         msix_entries[bfad->nvec].entry = i;
1214                         bfad->nvec++;
1215                 }
1216
1217                 match <<= 1;
1218         }
1219
1220 }
1221
1222 int
1223 bfad_install_msix_handler(struct bfad_s *bfad)
1224 {
1225         int i, error = 0;
1226
1227         for (i = 0; i < bfad->nvec; i++) {
1228                 sprintf(bfad->msix_tab[i].name, "bfa-%s-%s",
1229                                 bfad->pci_name,
1230                                 ((bfa_asic_id_cb(bfad->hal_pcidev.device_id)) ?
1231                                 msix_name_cb[i] : msix_name_ct[i]));
1232
1233                 error = request_irq(bfad->msix_tab[i].msix.vector,
1234                                     (irq_handler_t) bfad_msix, 0,
1235                                     bfad->msix_tab[i].name, &bfad->msix_tab[i]);
1236                 bfa_trc(bfad, i);
1237                 bfa_trc(bfad, bfad->msix_tab[i].msix.vector);
1238                 if (error) {
1239                         int     j;
1240
1241                         for (j = 0; j < i; j++)
1242                                 free_irq(bfad->msix_tab[j].msix.vector,
1243                                                 &bfad->msix_tab[j]);
1244
1245                         bfad->bfad_flags &= ~BFAD_MSIX_ON;
1246                         pci_disable_msix(bfad->pcidev);
1247
1248                         return 1;
1249                 }
1250         }
1251
1252         return 0;
1253 }
1254
1255 /*
1256  * Setup MSIX based interrupt.
1257  */
1258 int
1259 bfad_setup_intr(struct bfad_s *bfad)
1260 {
1261         int error = 0;
1262         u32 mask = 0, i, num_bit = 0, max_bit = 0;
1263         struct msix_entry msix_entries[MAX_MSIX_ENTRY];
1264         struct pci_dev *pdev = bfad->pcidev;
1265         u16     reg;
1266
1267         /* Call BFA to get the msix map for this PCI function.  */
1268         bfa_msix_getvecs(&bfad->bfa, &mask, &num_bit, &max_bit);
1269
1270         /* Set up the msix entry table */
1271         bfad_init_msix_entry(bfad, msix_entries, mask, max_bit);
1272
1273         if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
1274            (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {
1275
1276                 error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
1277                 if (error) {
1278                         /*
1279                          * Only error number of vector is available.
1280                          * We don't have a mechanism to map multiple
1281                          * interrupts into one vector, so even if we
1282                          * can try to request less vectors, we don't
1283                          * know how to associate interrupt events to
1284                          *  vectors. Linux doesn't duplicate vectors
1285                          * in the MSIX table for this case.
1286                          */
1287
1288                         printk(KERN_WARNING "bfad%d: "
1289                                 "pci_enable_msix failed (%d),"
1290                                 " use line based.\n", bfad->inst_no, error);
1291
1292                         goto line_based;
1293                 }
1294
1295                 /* Disable INTX in MSI-X mode */
1296                 pci_read_config_word(pdev, PCI_COMMAND, &reg);
1297
1298                 if (!(reg & PCI_COMMAND_INTX_DISABLE))
1299                         pci_write_config_word(pdev, PCI_COMMAND,
1300                                 reg | PCI_COMMAND_INTX_DISABLE);
1301
1302                 /* Save the vectors */
1303                 for (i = 0; i < bfad->nvec; i++) {
1304                         bfa_trc(bfad, msix_entries[i].vector);
1305                         bfad->msix_tab[i].msix.vector = msix_entries[i].vector;
1306                 }
1307
1308                 bfa_msix_init(&bfad->bfa, bfad->nvec);
1309
1310                 bfad->bfad_flags |= BFAD_MSIX_ON;
1311
1312                 return error;
1313         }
1314
1315 line_based:
1316         error = 0;
1317         if (request_irq
1318             (bfad->pcidev->irq, (irq_handler_t) bfad_intx, BFAD_IRQ_FLAGS,
1319              BFAD_DRIVER_NAME, bfad) != 0) {
1320                 /* Enable interrupt handler failed */
1321                 return 1;
1322         }
1323         bfad->bfad_flags |= BFAD_INTX_ON;
1324
1325         return error;
1326 }
1327
1328 void
1329 bfad_remove_intr(struct bfad_s *bfad)
1330 {
1331         int     i;
1332
1333         if (bfad->bfad_flags & BFAD_MSIX_ON) {
1334                 for (i = 0; i < bfad->nvec; i++)
1335                         free_irq(bfad->msix_tab[i].msix.vector,
1336                                         &bfad->msix_tab[i]);
1337
1338                 pci_disable_msix(bfad->pcidev);
1339                 bfad->bfad_flags &= ~BFAD_MSIX_ON;
1340         } else if (bfad->bfad_flags & BFAD_INTX_ON) {
1341                 free_irq(bfad->pcidev->irq, bfad);
1342         }
1343 }
1344
1345 /*
1346  * PCI probe entry.
1347  */
1348 int
1349 bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid)
1350 {
1351         struct bfad_s   *bfad;
1352         int             error = -ENODEV, retval, i;
1353
1354         /* For single port cards - only claim function 0 */
1355         if ((pdev->device == BFA_PCI_DEVICE_ID_FC_8G1P) &&
1356                 (PCI_FUNC(pdev->devfn) != 0))
1357                 return -ENODEV;
1358
1359         bfad = kzalloc(sizeof(struct bfad_s), GFP_KERNEL);
1360         if (!bfad) {
1361                 error = -ENOMEM;
1362                 goto out;
1363         }
1364
1365         bfad->trcmod = kzalloc(sizeof(struct bfa_trc_mod_s), GFP_KERNEL);
1366         if (!bfad->trcmod) {
1367                 printk(KERN_WARNING "Error alloc trace buffer!\n");
1368                 error = -ENOMEM;
1369                 goto out_alloc_trace_failure;
1370         }
1371
1372         /* TRACE INIT */
1373         bfa_trc_init(bfad->trcmod);
1374         bfa_trc(bfad, bfad_inst);
1375
1376         /* AEN INIT */
1377         INIT_LIST_HEAD(&bfad->free_aen_q);
1378         INIT_LIST_HEAD(&bfad->active_aen_q);
1379         for (i = 0; i < BFA_AEN_MAX_ENTRY; i++)
1380                 list_add_tail(&bfad->aen_list[i].qe, &bfad->free_aen_q);
1381
1382         if (!(bfad_load_fwimg(pdev))) {
1383                 kfree(bfad->trcmod);
1384                 goto out_alloc_trace_failure;
1385         }
1386
1387         retval = bfad_pci_init(pdev, bfad);
1388         if (retval) {
1389                 printk(KERN_WARNING "bfad_pci_init failure!\n");
1390                 error = retval;
1391                 goto out_pci_init_failure;
1392         }
1393
1394         mutex_lock(&bfad_mutex);
1395         bfad->inst_no = bfad_inst++;
1396         list_add_tail(&bfad->list_entry, &bfad_list);
1397         mutex_unlock(&bfad_mutex);
1398
1399         /* Initializing the state machine: State set to uninit */
1400         bfa_sm_set_state(bfad, bfad_sm_uninit);
1401
1402         spin_lock_init(&bfad->bfad_lock);
1403         pci_set_drvdata(pdev, bfad);
1404
1405         bfad->ref_count = 0;
1406         bfad->pport.bfad = bfad;
1407         INIT_LIST_HEAD(&bfad->pbc_vport_list);
1408         INIT_LIST_HEAD(&bfad->vport_list);
1409
1410         /* Setup the debugfs node for this bfad */
1411         if (bfa_debugfs_enable)
1412                 bfad_debugfs_init(&bfad->pport);
1413
1414         retval = bfad_drv_init(bfad);
1415         if (retval != BFA_STATUS_OK)
1416                 goto out_drv_init_failure;
1417
1418         bfa_sm_send_event(bfad, BFAD_E_CREATE);
1419
1420         if (bfa_sm_cmp_state(bfad, bfad_sm_uninit))
1421                 goto out_bfad_sm_failure;
1422
1423         return 0;
1424
1425 out_bfad_sm_failure:
1426         bfa_detach(&bfad->bfa);
1427         bfad_hal_mem_release(bfad);
1428 out_drv_init_failure:
1429         /* Remove the debugfs node for this bfad */
1430         kfree(bfad->regdata);
1431         bfad_debugfs_exit(&bfad->pport);
1432         mutex_lock(&bfad_mutex);
1433         bfad_inst--;
1434         list_del(&bfad->list_entry);
1435         mutex_unlock(&bfad_mutex);
1436         bfad_pci_uninit(pdev, bfad);
1437 out_pci_init_failure:
1438         kfree(bfad->trcmod);
1439 out_alloc_trace_failure:
1440         kfree(bfad);
1441 out:
1442         return error;
1443 }
1444
1445 /*
1446  * PCI remove entry.
1447  */
1448 void
1449 bfad_pci_remove(struct pci_dev *pdev)
1450 {
1451         struct bfad_s         *bfad = pci_get_drvdata(pdev);
1452         unsigned long   flags;
1453
1454         bfa_trc(bfad, bfad->inst_no);
1455
1456         spin_lock_irqsave(&bfad->bfad_lock, flags);
1457         if (bfad->bfad_tsk != NULL) {
1458                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1459                 kthread_stop(bfad->bfad_tsk);
1460         } else {
1461                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1462         }
1463
1464         /* Send Event BFAD_E_STOP */
1465         bfa_sm_send_event(bfad, BFAD_E_STOP);
1466
1467         /* Driver detach and dealloc mem */
1468         spin_lock_irqsave(&bfad->bfad_lock, flags);
1469         bfa_detach(&bfad->bfa);
1470         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1471         bfad_hal_mem_release(bfad);
1472
1473         /* Remove the debugfs node for this bfad */
1474         kfree(bfad->regdata);
1475         bfad_debugfs_exit(&bfad->pport);
1476
1477         /* Cleaning the BFAD instance */
1478         mutex_lock(&bfad_mutex);
1479         bfad_inst--;
1480         list_del(&bfad->list_entry);
1481         mutex_unlock(&bfad_mutex);
1482         bfad_pci_uninit(pdev, bfad);
1483
1484         kfree(bfad->trcmod);
1485         kfree(bfad);
1486 }
1487
1488 struct pci_device_id bfad_id_table[] = {
1489         {
1490                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1491                 .device = BFA_PCI_DEVICE_ID_FC_8G2P,
1492                 .subvendor = PCI_ANY_ID,
1493                 .subdevice = PCI_ANY_ID,
1494         },
1495         {
1496                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1497                 .device = BFA_PCI_DEVICE_ID_FC_8G1P,
1498                 .subvendor = PCI_ANY_ID,
1499                 .subdevice = PCI_ANY_ID,
1500         },
1501         {
1502                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1503                 .device = BFA_PCI_DEVICE_ID_CT,
1504                 .subvendor = PCI_ANY_ID,
1505                 .subdevice = PCI_ANY_ID,
1506                 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1507                 .class_mask = ~0,
1508         },
1509         {
1510                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1511                 .device = BFA_PCI_DEVICE_ID_CT_FC,
1512                 .subvendor = PCI_ANY_ID,
1513                 .subdevice = PCI_ANY_ID,
1514                 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1515                 .class_mask = ~0,
1516         },
1517         {
1518                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1519                 .device = BFA_PCI_DEVICE_ID_CT2,
1520                 .subvendor = PCI_ANY_ID,
1521                 .subdevice = PCI_ANY_ID,
1522                 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1523                 .class_mask = ~0,
1524         },
1525
1526         {0, 0},
1527 };
1528
1529 MODULE_DEVICE_TABLE(pci, bfad_id_table);
1530
1531 static struct pci_driver bfad_pci_driver = {
1532         .name = BFAD_DRIVER_NAME,
1533         .id_table = bfad_id_table,
1534         .probe = bfad_pci_probe,
1535         .remove = __devexit_p(bfad_pci_remove),
1536 };
1537
1538 /*
1539  * Driver module init.
1540  */
1541 static int __init
1542 bfad_init(void)
1543 {
1544         int             error = 0;
1545
1546         printk(KERN_INFO "Brocade BFA FC/FCOE SCSI driver - version: %s\n",
1547                         BFAD_DRIVER_VERSION);
1548
1549         if (num_sgpgs > 0)
1550                 num_sgpgs_parm = num_sgpgs;
1551
1552         error = bfad_im_module_init();
1553         if (error) {
1554                 error = -ENOMEM;
1555                 printk(KERN_WARNING "bfad_im_module_init failure\n");
1556                 goto ext;
1557         }
1558
1559         if (strcmp(FCPI_NAME, " fcpim") == 0)
1560                 supported_fc4s |= BFA_LPORT_ROLE_FCP_IM;
1561
1562         bfa_auto_recover = ioc_auto_recover;
1563         bfa_fcs_rport_set_del_timeout(rport_del_timeout);
1564
1565         error = pci_register_driver(&bfad_pci_driver);
1566         if (error) {
1567                 printk(KERN_WARNING "pci_register_driver failure\n");
1568                 goto ext;
1569         }
1570
1571         return 0;
1572
1573 ext:
1574         bfad_im_module_exit();
1575         return error;
1576 }
1577
1578 /*
1579  * Driver module exit.
1580  */
1581 static void __exit
1582 bfad_exit(void)
1583 {
1584         pci_unregister_driver(&bfad_pci_driver);
1585         bfad_im_module_exit();
1586         bfad_free_fwimg();
1587 }
1588
1589 /* Firmware handling */
1590 static void
1591 bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
1592                 u32 *bfi_image_size, char *fw_name)
1593 {
1594         const struct firmware *fw;
1595
1596         if (request_firmware(&fw, fw_name, &pdev->dev)) {
1597                 printk(KERN_ALERT "Can't locate firmware %s\n", fw_name);
1598                 *bfi_image = NULL;
1599                 goto out;
1600         }
1601
1602         *bfi_image = vmalloc(fw->size);
1603         if (NULL == *bfi_image) {
1604                 printk(KERN_ALERT "Fail to allocate buffer for fw image "
1605                         "size=%x!\n", (u32) fw->size);
1606                 goto out;
1607         }
1608
1609         memcpy(*bfi_image, fw->data, fw->size);
1610         *bfi_image_size = fw->size/sizeof(u32);
1611 out:
1612         release_firmware(fw);
1613 }
1614
1615 static u32 *
1616 bfad_load_fwimg(struct pci_dev *pdev)
1617 {
1618         if (pdev->device == BFA_PCI_DEVICE_ID_CT2) {
1619                 if (bfi_image_ct2_size == 0)
1620                         bfad_read_firmware(pdev, &bfi_image_ct2,
1621                                 &bfi_image_ct2_size, BFAD_FW_FILE_CT2);
1622                 return bfi_image_ct2;
1623         } else if (bfa_asic_id_ct(pdev->device)) {
1624                 if (bfi_image_ct_size == 0)
1625                         bfad_read_firmware(pdev, &bfi_image_ct,
1626                                 &bfi_image_ct_size, BFAD_FW_FILE_CT);
1627                 return bfi_image_ct;
1628         } else {
1629                 if (bfi_image_cb_size == 0)
1630                         bfad_read_firmware(pdev, &bfi_image_cb,
1631                                 &bfi_image_cb_size, BFAD_FW_FILE_CB);
1632                 return bfi_image_cb;
1633         }
1634 }
1635
1636 static void
1637 bfad_free_fwimg(void)
1638 {
1639         if (bfi_image_ct2_size && bfi_image_ct2)
1640                 vfree(bfi_image_ct2);
1641         if (bfi_image_ct_size && bfi_image_ct)
1642                 vfree(bfi_image_ct);
1643         if (bfi_image_cb_size && bfi_image_cb)
1644                 vfree(bfi_image_cb);
1645 }
1646
1647 module_init(bfad_init);
1648 module_exit(bfad_exit);
1649 MODULE_LICENSE("GPL");
1650 MODULE_DESCRIPTION("Brocade Fibre Channel HBA Driver" BFAD_PROTO_NAME);
1651 MODULE_AUTHOR("Brocade Communications Systems, Inc.");
1652 MODULE_VERSION(BFAD_DRIVER_VERSION);