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 38BFA_TRC_FILE(LDRV, BFAD); 39DEFINE_MUTEX(bfad_mutex); 40LIST_HEAD(bfad_list); 41 42static int bfad_inst; 43static int num_sgpgs_parm; 44int supported_fc4s; 45char *host_name, *os_name, *os_patch; 46int num_rports, num_ios, num_tms; 47int num_fcxps, num_ufbufs; 48int reqq_size, rspq_size, num_sgpgs; 49int rport_del_timeout = BFA_FCS_RPORT_DEF_DEL_TIMEOUT; 50int bfa_lun_queue_depth = BFAD_LUN_QUEUE_DEPTH; 51int bfa_io_max_sge = BFAD_IO_MAX_SGE; 52int bfa_log_level = 3; /* WARNING log level */ 53int ioc_auto_recover = BFA_TRUE; 54int bfa_linkup_delay = -1; 55int fdmi_enable = BFA_TRUE; 56int pcie_max_read_reqsz; 57int bfa_debugfs_enable = 1; 58int msix_disable_cb = 0, msix_disable_ct = 0; 59int max_xfer_size = BFAD_MAX_SECTORS >> 1; 60 61/* Firmware releated */ 62u32 bfi_image_cb_size, bfi_image_ct_size, bfi_image_ct2_size; 63u32 *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 69static u32 *bfad_load_fwimg(struct pci_dev *pdev); 70static void bfad_free_fwimg(void); 71static void bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image, 72 u32 *bfi_image_size, char *fw_name); 73 74static const char *msix_name_ct[] = { 75 "ctrl", 76 "cpe0", "cpe1", "cpe2", "cpe3", 77 "rme0", "rme1", "rme2", "rme3" }; 78 79static const char *msix_name_cb[] = { 80 "cpe0", "cpe1", "cpe2", "cpe3", 81 "rme0", "rme1", "rme2", "rme3", 82 "eemc", "elpu0", "elpu1", "epss", "mlpu" }; 83 84MODULE_FIRMWARE(BFAD_FW_FILE_CB); 85MODULE_FIRMWARE(BFAD_FW_FILE_CT); 86MODULE_FIRMWARE(BFAD_FW_FILE_CT2); 87 88module_param(os_name, charp, S_IRUGO | S_IWUSR); 89MODULE_PARM_DESC(os_name, "OS name of the hba host machine"); 90module_param(os_patch, charp, S_IRUGO | S_IWUSR); 91MODULE_PARM_DESC(os_patch, "OS patch level of the hba host machine"); 92module_param(host_name, charp, S_IRUGO | S_IWUSR); 93MODULE_PARM_DESC(host_name, "Hostname of the hba host machine"); 94module_param(num_rports, int, S_IRUGO | S_IWUSR); 95MODULE_PARM_DESC(num_rports, "Max number of rports supported per port " 96 "(physical/logical), default=1024"); 97module_param(num_ios, int, S_IRUGO | S_IWUSR); 98MODULE_PARM_DESC(num_ios, "Max number of ioim requests, default=2000"); 99module_param(num_tms, int, S_IRUGO | S_IWUSR); 100MODULE_PARM_DESC(num_tms, "Max number of task im requests, default=128"); 101module_param(num_fcxps, int, S_IRUGO | S_IWUSR); 102MODULE_PARM_DESC(num_fcxps, "Max number of fcxp requests, default=64"); 103module_param(num_ufbufs, int, S_IRUGO | S_IWUSR); 104MODULE_PARM_DESC(num_ufbufs, "Max number of unsolicited frame " 105 "buffers, default=64"); 106module_param(reqq_size, int, S_IRUGO | S_IWUSR); 107MODULE_PARM_DESC(reqq_size, "Max number of request queue elements, " 108 "default=256"); 109module_param(rspq_size, int, S_IRUGO | S_IWUSR); 110MODULE_PARM_DESC(rspq_size, "Max number of response queue elements, " 111 "default=64"); 112module_param(num_sgpgs, int, S_IRUGO | S_IWUSR); 113MODULE_PARM_DESC(num_sgpgs, "Number of scatter/gather pages, default=2048"); 114module_param(rport_del_timeout, int, S_IRUGO | S_IWUSR); 115MODULE_PARM_DESC(rport_del_timeout, "Rport delete timeout, default=90 secs, " 116 "Range[>0]"); 117module_param(bfa_lun_queue_depth, int, S_IRUGO | S_IWUSR); 118MODULE_PARM_DESC(bfa_lun_queue_depth, "Lun queue depth, default=32, Range[>0]"); 119module_param(bfa_io_max_sge, int, S_IRUGO | S_IWUSR); 120MODULE_PARM_DESC(bfa_io_max_sge, "Max io scatter/gather elements, default=255"); 121module_param(bfa_log_level, int, S_IRUGO | S_IWUSR); 122MODULE_PARM_DESC(bfa_log_level, "Driver log level, default=3, " 123 "Range[Critical:1|Error:2|Warning:3|Info:4]"); 124module_param(ioc_auto_recover, int, S_IRUGO | S_IWUSR); 125MODULE_PARM_DESC(ioc_auto_recover, "IOC auto recovery, default=1, " 126 "Range[off:0|on:1]"); 127module_param(bfa_linkup_delay, int, S_IRUGO | S_IWUSR); 128MODULE_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]"); 131module_param(msix_disable_cb, int, S_IRUGO | S_IWUSR); 132MODULE_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]"); 135module_param(msix_disable_ct, int, S_IRUGO | S_IWUSR); 136MODULE_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]"); 139module_param(fdmi_enable, int, S_IRUGO | S_IWUSR); 140MODULE_PARM_DESC(fdmi_enable, "Enables fdmi registration, default=1, " 141 "Range[false:0|true:1]"); 142module_param(pcie_max_read_reqsz, int, S_IRUGO | S_IWUSR); 143MODULE_PARM_DESC(pcie_max_read_reqsz, "PCIe max read request size, default=0 " 144 "(use system setting), Range[128|256|512|1024|2048|4096]"); 145module_param(bfa_debugfs_enable, int, S_IRUGO | S_IWUSR); 146MODULE_PARM_DESC(bfa_debugfs_enable, "Enables debugfs feature, default=1," 147 " Range[false:0|true:1]"); 148module_param(max_xfer_size, int, S_IRUGO | S_IWUSR); 149MODULE_PARM_DESC(max_xfer_size, "default=32MB," 150 " Range[64k|128k|256k|512k|1024k|2048k]"); 151 152static void 153bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event); 154static void 155bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event); 156static void 157bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event); 158static void 159bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event); 160static void 161bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event); 162static void 163bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event); 164static void 165bfad_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 */ 170static void 171bfad_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 */ 200static void 201bfad_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 257static void 258bfad_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 294static void 295bfad_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 330static void 331bfad_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 346static void 347bfad_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 362static void 363bfad_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 */ 386void 387bfad_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 */ 398void 399bfa_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 */ 423struct bfad_port_s * 424bfa_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 459void 460bfa_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 */ 479bfa_status_t 480bfa_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 493ext: 494 return rc; 495} 496 497/* 498 * FCS PBC VPORT Create 499 */ 500void 501bfa_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 531void 532bfad_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 559void 560bfad_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 593bfa_status_t 594bfad_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 } 637ext: 638 return rc; 639} 640 641/* 642 * Create a vport under a vf. 643 */ 644bfa_status_t 645bfad_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 682ext_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); 689ext_free_vport: 690 kfree(vport); 691ext: 692 return rc; 693} 694 695void 696bfad_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 720void 721bfad_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 731int 732bfad_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 828out_release_region: 829 pci_release_regions(pdev); 830out_disable_device: 831 pci_disable_device(pdev); 832out: 833 return rc; 834} 835 836void 837bfad_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 846bfa_status_t 847bfad_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 893out_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); 904out_hal_mem_alloc_failure: 905 return BFA_STATUS_FAILED; 906} 907 908void 909bfad_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 928void 929bfad_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 944void 945bfad_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 959void 960bfad_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 974bfa_status_t 975bfad_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 997out: 998 return rc; 999} 1000 1001void 1002bfad_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 1015bfa_status_t 1016bfad_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 1118int 1119bfad_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 */ 1144irqreturn_t 1145bfad_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 1174static irqreturn_t 1175bfad_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 */ 1202static void 1203bfad_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 1222int 1223bfad_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 */ 1258int 1259bfad_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, ®); 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 1315line_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 1328void 1329bfad_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 */ 1348int 1349bfad_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 1425out_bfad_sm_failure: 1426 bfa_detach(&bfad->bfa); 1427 bfad_hal_mem_release(bfad); 1428out_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); 1437out_pci_init_failure: 1438 kfree(bfad->trcmod); 1439out_alloc_trace_failure: 1440 kfree(bfad); 1441out: 1442 return error; 1443} 1444 1445/* 1446 * PCI remove entry. 1447 */ 1448void 1449bfad_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 1488struct 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 1529MODULE_DEVICE_TABLE(pci, bfad_id_table); 1530 1531static 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 */ 1541static int __init 1542bfad_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 1573ext: 1574 bfad_im_module_exit(); 1575 return error; 1576} 1577 1578/* 1579 * Driver module exit. 1580 */ 1581static void __exit 1582bfad_exit(void) 1583{ 1584 pci_unregister_driver(&bfad_pci_driver); 1585 bfad_im_module_exit(); 1586 bfad_free_fwimg(); 1587} 1588 1589/* Firmware handling */ 1590static void 1591bfad_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); 1611out: 1612 release_firmware(fw); 1613} 1614 1615static u32 * 1616bfad_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 1636static void 1637bfad_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 1647module_init(bfad_init); 1648module_exit(bfad_exit); 1649MODULE_LICENSE("GPL"); 1650MODULE_DESCRIPTION("Brocade Fibre Channel HBA Driver" BFAD_PROTO_NAME); 1651MODULE_AUTHOR("Brocade Communications Systems, Inc."); 1652MODULE_VERSION(BFAD_DRIVER_VERSION); 1653