2 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
6 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
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
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.
19 * bfad.c Linux driver PCI interface module.
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>
27 #include <linux/pci.h>
28 #include <linux/firmware.h>
29 #include <asm/uaccess.h>
30 #include <asm/fcntl.h>
38 BFA_TRC_FILE(LDRV, BFAD);
39 DEFINE_MUTEX(bfad_mutex);
43 static int num_sgpgs_parm;
45 char *host_name, *os_name, *os_patch;
46 int num_rports, num_ios, num_tms;
47 int num_fcxps, num_ufbufs;
48 int reqq_size, rspq_size, num_sgpgs;
49 int rport_del_timeout = BFA_FCS_RPORT_DEF_DEL_TIMEOUT;
50 int bfa_lun_queue_depth = BFAD_LUN_QUEUE_DEPTH;
51 int bfa_io_max_sge = BFAD_IO_MAX_SGE;
52 int bfa_log_level = 3; /* WARNING log level */
53 int ioc_auto_recover = BFA_TRUE;
54 int bfa_linkup_delay = -1;
55 int fdmi_enable = BFA_TRUE;
56 int pcie_max_read_reqsz;
57 int bfa_debugfs_enable = 1;
58 int msix_disable_cb = 0, msix_disable_ct = 0;
59 int max_xfer_size = BFAD_MAX_SECTORS >> 1;
60 int max_rport_logins = BFA_FCS_MAX_RPORT_LOGINS;
62 /* Firmware releated */
63 u32 bfi_image_cb_size, bfi_image_ct_size, bfi_image_ct2_size;
64 u32 *bfi_image_cb, *bfi_image_ct, *bfi_image_ct2;
66 #define BFAD_FW_FILE_CB "cbfw-3.2.3.0.bin"
67 #define BFAD_FW_FILE_CT "ctfw-3.2.3.0.bin"
68 #define BFAD_FW_FILE_CT2 "ct2fw-3.2.3.0.bin"
70 static u32 *bfad_load_fwimg(struct pci_dev *pdev);
71 static void bfad_free_fwimg(void);
72 static void bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
73 u32 *bfi_image_size, char *fw_name);
75 static const char *msix_name_ct[] = {
77 "cpe0", "cpe1", "cpe2", "cpe3",
78 "rme0", "rme1", "rme2", "rme3" };
80 static const char *msix_name_cb[] = {
81 "cpe0", "cpe1", "cpe2", "cpe3",
82 "rme0", "rme1", "rme2", "rme3",
83 "eemc", "elpu0", "elpu1", "epss", "mlpu" };
85 MODULE_FIRMWARE(BFAD_FW_FILE_CB);
86 MODULE_FIRMWARE(BFAD_FW_FILE_CT);
87 MODULE_FIRMWARE(BFAD_FW_FILE_CT2);
89 module_param(os_name, charp, S_IRUGO | S_IWUSR);
90 MODULE_PARM_DESC(os_name, "OS name of the hba host machine");
91 module_param(os_patch, charp, S_IRUGO | S_IWUSR);
92 MODULE_PARM_DESC(os_patch, "OS patch level of the hba host machine");
93 module_param(host_name, charp, S_IRUGO | S_IWUSR);
94 MODULE_PARM_DESC(host_name, "Hostname of the hba host machine");
95 module_param(num_rports, int, S_IRUGO | S_IWUSR);
96 MODULE_PARM_DESC(num_rports, "Max number of rports supported per port "
97 "(physical/logical), default=1024");
98 module_param(num_ios, int, S_IRUGO | S_IWUSR);
99 MODULE_PARM_DESC(num_ios, "Max number of ioim requests, default=2000");
100 module_param(num_tms, int, S_IRUGO | S_IWUSR);
101 MODULE_PARM_DESC(num_tms, "Max number of task im requests, default=128");
102 module_param(num_fcxps, int, S_IRUGO | S_IWUSR);
103 MODULE_PARM_DESC(num_fcxps, "Max number of fcxp requests, default=64");
104 module_param(num_ufbufs, int, S_IRUGO | S_IWUSR);
105 MODULE_PARM_DESC(num_ufbufs, "Max number of unsolicited frame "
106 "buffers, default=64");
107 module_param(reqq_size, int, S_IRUGO | S_IWUSR);
108 MODULE_PARM_DESC(reqq_size, "Max number of request queue elements, "
110 module_param(rspq_size, int, S_IRUGO | S_IWUSR);
111 MODULE_PARM_DESC(rspq_size, "Max number of response queue elements, "
113 module_param(num_sgpgs, int, S_IRUGO | S_IWUSR);
114 MODULE_PARM_DESC(num_sgpgs, "Number of scatter/gather pages, default=2048");
115 module_param(rport_del_timeout, int, S_IRUGO | S_IWUSR);
116 MODULE_PARM_DESC(rport_del_timeout, "Rport delete timeout, default=90 secs, "
118 module_param(bfa_lun_queue_depth, int, S_IRUGO | S_IWUSR);
119 MODULE_PARM_DESC(bfa_lun_queue_depth, "Lun queue depth, default=32, Range[>0]");
120 module_param(bfa_io_max_sge, int, S_IRUGO | S_IWUSR);
121 MODULE_PARM_DESC(bfa_io_max_sge, "Max io scatter/gather elements, default=255");
122 module_param(bfa_log_level, int, S_IRUGO | S_IWUSR);
123 MODULE_PARM_DESC(bfa_log_level, "Driver log level, default=3, "
124 "Range[Critical:1|Error:2|Warning:3|Info:4]");
125 module_param(ioc_auto_recover, int, S_IRUGO | S_IWUSR);
126 MODULE_PARM_DESC(ioc_auto_recover, "IOC auto recovery, default=1, "
127 "Range[off:0|on:1]");
128 module_param(bfa_linkup_delay, int, S_IRUGO | S_IWUSR);
129 MODULE_PARM_DESC(bfa_linkup_delay, "Link up delay, default=30 secs for "
130 "boot port. Otherwise 10 secs in RHEL4 & 0 for "
131 "[RHEL5, SLES10, ESX40] Range[>0]");
132 module_param(msix_disable_cb, int, S_IRUGO | S_IWUSR);
133 MODULE_PARM_DESC(msix_disable_cb, "Disable Message Signaled Interrupts "
134 "for Brocade-415/425/815/825 cards, default=0, "
135 " Range[false:0|true:1]");
136 module_param(msix_disable_ct, int, S_IRUGO | S_IWUSR);
137 MODULE_PARM_DESC(msix_disable_ct, "Disable Message Signaled Interrupts "
138 "if possible for Brocade-1010/1020/804/1007/902/1741 "
139 "cards, default=0, Range[false:0|true:1]");
140 module_param(fdmi_enable, int, S_IRUGO | S_IWUSR);
141 MODULE_PARM_DESC(fdmi_enable, "Enables fdmi registration, default=1, "
142 "Range[false:0|true:1]");
143 module_param(pcie_max_read_reqsz, int, S_IRUGO | S_IWUSR);
144 MODULE_PARM_DESC(pcie_max_read_reqsz, "PCIe max read request size, default=0 "
145 "(use system setting), Range[128|256|512|1024|2048|4096]");
146 module_param(bfa_debugfs_enable, int, S_IRUGO | S_IWUSR);
147 MODULE_PARM_DESC(bfa_debugfs_enable, "Enables debugfs feature, default=1,"
148 " Range[false:0|true:1]");
149 module_param(max_xfer_size, int, S_IRUGO | S_IWUSR);
150 MODULE_PARM_DESC(max_xfer_size, "default=32MB,"
151 " Range[64k|128k|256k|512k|1024k|2048k]");
152 module_param(max_rport_logins, int, S_IRUGO | S_IWUSR);
153 MODULE_PARM_DESC(max_rport_logins, "Max number of logins to initiator and target rports on a port (physical/logical), default=1024");
156 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event);
158 bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event);
160 bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event);
162 bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event);
164 bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event);
166 bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event);
168 bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event);
171 * Beginning state for the driver instance, awaiting the pci_probe event
174 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event)
176 bfa_trc(bfad, event);
180 bfa_sm_set_state(bfad, bfad_sm_created);
181 bfad->bfad_tsk = kthread_create(bfad_worker, (void *) bfad,
182 "%s", "bfad_worker");
183 if (IS_ERR(bfad->bfad_tsk)) {
184 printk(KERN_INFO "bfad[%d]: Kernel thread "
185 "creation failed!\n", bfad->inst_no);
186 bfa_sm_send_event(bfad, BFAD_E_KTHREAD_CREATE_FAILED);
188 bfa_sm_send_event(bfad, BFAD_E_INIT);
192 /* Ignore stop; already in uninit */
196 bfa_sm_fault(bfad, event);
201 * Driver Instance is created, awaiting event INIT to initialize the bfad
204 bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event)
209 bfa_trc(bfad, event);
213 bfa_sm_set_state(bfad, bfad_sm_initializing);
215 init_completion(&bfad->comp);
217 /* Enable Interrupt and wait bfa_init completion */
218 if (bfad_setup_intr(bfad)) {
219 printk(KERN_WARNING "bfad%d: bfad_setup_intr failed\n",
221 bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
225 spin_lock_irqsave(&bfad->bfad_lock, flags);
226 bfa_iocfc_init(&bfad->bfa);
227 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
229 /* Set up interrupt handler for each vectors */
230 if ((bfad->bfad_flags & BFAD_MSIX_ON) &&
231 bfad_install_msix_handler(bfad)) {
232 printk(KERN_WARNING "%s: install_msix failed, bfad%d\n",
233 __func__, bfad->inst_no);
236 bfad_init_timer(bfad);
238 wait_for_completion(&bfad->comp);
240 if ((bfad->bfad_flags & BFAD_HAL_INIT_DONE)) {
241 bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS);
244 "bfa %s: bfa init failed\n",
246 spin_lock_irqsave(&bfad->bfad_lock, flags);
247 bfa_fcs_init(&bfad->bfa_fcs);
248 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
250 ret = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM);
251 if (ret != BFA_STATUS_OK) {
252 init_completion(&bfad->comp);
254 spin_lock_irqsave(&bfad->bfad_lock, flags);
255 bfad->pport.flags |= BFAD_PORT_DELETE;
256 bfa_fcs_exit(&bfad->bfa_fcs);
257 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
259 wait_for_completion(&bfad->comp);
261 bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
264 bfad->bfad_flags |= BFAD_HAL_INIT_FAIL;
265 bfa_sm_send_event(bfad, BFAD_E_HAL_INIT_FAILED);
270 case BFAD_E_KTHREAD_CREATE_FAILED:
271 bfa_sm_set_state(bfad, bfad_sm_uninit);
275 bfa_sm_fault(bfad, event);
280 bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event)
285 bfa_trc(bfad, event);
288 case BFAD_E_INIT_SUCCESS:
289 kthread_stop(bfad->bfad_tsk);
290 spin_lock_irqsave(&bfad->bfad_lock, flags);
291 bfad->bfad_tsk = NULL;
292 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
294 retval = bfad_start_ops(bfad);
295 if (retval != BFA_STATUS_OK) {
296 bfa_sm_set_state(bfad, bfad_sm_failed);
299 bfa_sm_set_state(bfad, bfad_sm_operational);
302 case BFAD_E_INIT_FAILED:
303 bfa_sm_set_state(bfad, bfad_sm_uninit);
304 kthread_stop(bfad->bfad_tsk);
305 spin_lock_irqsave(&bfad->bfad_lock, flags);
306 bfad->bfad_tsk = NULL;
307 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
310 case BFAD_E_HAL_INIT_FAILED:
311 bfa_sm_set_state(bfad, bfad_sm_failed);
314 bfa_sm_fault(bfad, event);
319 bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event)
323 bfa_trc(bfad, event);
326 case BFAD_E_INIT_SUCCESS:
327 retval = bfad_start_ops(bfad);
328 if (retval != BFA_STATUS_OK)
330 bfa_sm_set_state(bfad, bfad_sm_operational);
334 bfa_sm_set_state(bfad, bfad_sm_fcs_exit);
335 bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP);
338 case BFAD_E_EXIT_COMP:
339 bfa_sm_set_state(bfad, bfad_sm_uninit);
340 bfad_remove_intr(bfad);
341 del_timer_sync(&bfad->hal_tmo);
345 bfa_sm_fault(bfad, event);
350 bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event)
352 bfa_trc(bfad, event);
356 bfa_sm_set_state(bfad, bfad_sm_fcs_exit);
361 bfa_sm_fault(bfad, event);
366 bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event)
368 bfa_trc(bfad, event);
371 case BFAD_E_FCS_EXIT_COMP:
372 bfa_sm_set_state(bfad, bfad_sm_stopping);
377 bfa_sm_fault(bfad, event);
382 bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event)
384 bfa_trc(bfad, event);
387 case BFAD_E_EXIT_COMP:
388 bfa_sm_set_state(bfad, bfad_sm_uninit);
389 bfad_remove_intr(bfad);
390 del_timer_sync(&bfad->hal_tmo);
391 bfad_im_probe_undo(bfad);
392 bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE;
393 bfad_uncfg_pport(bfad);
397 bfa_sm_fault(bfad, event);
406 bfad_hcb_comp(void *arg, bfa_status_t status)
408 struct bfad_hal_comp *fcomp = (struct bfad_hal_comp *)arg;
410 fcomp->status = status;
411 complete(&fcomp->comp);
418 bfa_cb_init(void *drv, bfa_status_t init_status)
420 struct bfad_s *bfad = drv;
422 if (init_status == BFA_STATUS_OK) {
423 bfad->bfad_flags |= BFAD_HAL_INIT_DONE;
426 * If BFAD_HAL_INIT_FAIL flag is set:
427 * Wake up the kernel thread to start
428 * the bfad operations after HAL init done
430 if ((bfad->bfad_flags & BFAD_HAL_INIT_FAIL)) {
431 bfad->bfad_flags &= ~BFAD_HAL_INIT_FAIL;
432 wake_up_process(bfad->bfad_tsk);
436 complete(&bfad->comp);
443 bfa_fcb_lport_new(struct bfad_s *bfad, struct bfa_fcs_lport_s *port,
444 enum bfa_lport_role roles, struct bfad_vf_s *vf_drv,
445 struct bfad_vport_s *vp_drv)
448 struct bfad_port_s *port_drv;
450 if (!vp_drv && !vf_drv) {
451 port_drv = &bfad->pport;
452 port_drv->pvb_type = BFAD_PORT_PHYS_BASE;
453 } else if (!vp_drv && vf_drv) {
454 port_drv = &vf_drv->base_port;
455 port_drv->pvb_type = BFAD_PORT_VF_BASE;
456 } else if (vp_drv && !vf_drv) {
457 port_drv = &vp_drv->drv_port;
458 port_drv->pvb_type = BFAD_PORT_PHYS_VPORT;
460 port_drv = &vp_drv->drv_port;
461 port_drv->pvb_type = BFAD_PORT_VF_VPORT;
464 port_drv->fcs_port = port;
465 port_drv->roles = roles;
467 if (roles & BFA_LPORT_ROLE_FCP_IM) {
468 rc = bfad_im_port_new(bfad, port_drv);
469 if (rc != BFA_STATUS_OK) {
470 bfad_im_port_delete(bfad, port_drv);
479 * FCS RPORT alloc callback, after successful PLOGI by FCS
482 bfa_fcb_rport_alloc(struct bfad_s *bfad, struct bfa_fcs_rport_s **rport,
483 struct bfad_rport_s **rport_drv)
485 bfa_status_t rc = BFA_STATUS_OK;
487 *rport_drv = kzalloc(sizeof(struct bfad_rport_s), GFP_ATOMIC);
488 if (*rport_drv == NULL) {
489 rc = BFA_STATUS_ENOMEM;
493 *rport = &(*rport_drv)->fcs_rport;
500 * FCS PBC VPORT Create
503 bfa_fcb_pbc_vport_create(struct bfad_s *bfad, struct bfi_pbc_vport_s pbc_vport)
506 struct bfa_lport_cfg_s port_cfg = {0};
507 struct bfad_vport_s *vport;
510 vport = kzalloc(sizeof(struct bfad_vport_s), GFP_ATOMIC);
516 vport->drv_port.bfad = bfad;
517 port_cfg.roles = BFA_LPORT_ROLE_FCP_IM;
518 port_cfg.pwwn = pbc_vport.vp_pwwn;
519 port_cfg.nwwn = pbc_vport.vp_nwwn;
520 port_cfg.preboot_vp = BFA_TRUE;
522 rc = bfa_fcs_pbc_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, 0,
525 if (rc != BFA_STATUS_OK) {
530 list_add_tail(&vport->list_entry, &bfad->pbc_vport_list);
534 bfad_hal_mem_release(struct bfad_s *bfad)
536 struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo;
537 struct bfa_mem_dma_s *dma_info, *dma_elem;
538 struct bfa_mem_kva_s *kva_info, *kva_elem;
539 struct list_head *dm_qe, *km_qe;
541 dma_info = &hal_meminfo->dma_info;
542 kva_info = &hal_meminfo->kva_info;
544 /* Iterate through the KVA meminfo queue */
545 list_for_each(km_qe, &kva_info->qe) {
546 kva_elem = (struct bfa_mem_kva_s *) km_qe;
547 vfree(kva_elem->kva);
550 /* Iterate through the DMA meminfo queue */
551 list_for_each(dm_qe, &dma_info->qe) {
552 dma_elem = (struct bfa_mem_dma_s *) dm_qe;
553 dma_free_coherent(&bfad->pcidev->dev,
554 dma_elem->mem_len, dma_elem->kva,
555 (dma_addr_t) dma_elem->dma);
558 memset(hal_meminfo, 0, sizeof(struct bfa_meminfo_s));
562 bfad_update_hal_cfg(struct bfa_iocfc_cfg_s *bfa_cfg)
565 bfa_cfg->fwcfg.num_rports = num_rports;
567 bfa_cfg->fwcfg.num_ioim_reqs = num_ios;
569 bfa_cfg->fwcfg.num_tskim_reqs = num_tms;
570 if (num_fcxps > 0 && num_fcxps <= BFA_FCXP_MAX)
571 bfa_cfg->fwcfg.num_fcxp_reqs = num_fcxps;
572 if (num_ufbufs > 0 && num_ufbufs <= BFA_UF_MAX)
573 bfa_cfg->fwcfg.num_uf_bufs = num_ufbufs;
575 bfa_cfg->drvcfg.num_reqq_elems = reqq_size;
577 bfa_cfg->drvcfg.num_rspq_elems = rspq_size;
578 if (num_sgpgs > 0 && num_sgpgs <= BFA_SGPG_MAX)
579 bfa_cfg->drvcfg.num_sgpgs = num_sgpgs;
582 * populate the hal values back to the driver for sysfs use.
583 * otherwise, the default values will be shown as 0 in sysfs
585 num_rports = bfa_cfg->fwcfg.num_rports;
586 num_ios = bfa_cfg->fwcfg.num_ioim_reqs;
587 num_tms = bfa_cfg->fwcfg.num_tskim_reqs;
588 num_fcxps = bfa_cfg->fwcfg.num_fcxp_reqs;
589 num_ufbufs = bfa_cfg->fwcfg.num_uf_bufs;
590 reqq_size = bfa_cfg->drvcfg.num_reqq_elems;
591 rspq_size = bfa_cfg->drvcfg.num_rspq_elems;
592 num_sgpgs = bfa_cfg->drvcfg.num_sgpgs;
596 bfad_hal_mem_alloc(struct bfad_s *bfad)
598 struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo;
599 struct bfa_mem_dma_s *dma_info, *dma_elem;
600 struct bfa_mem_kva_s *kva_info, *kva_elem;
601 struct list_head *dm_qe, *km_qe;
602 bfa_status_t rc = BFA_STATUS_OK;
603 dma_addr_t phys_addr;
605 bfa_cfg_get_default(&bfad->ioc_cfg);
606 bfad_update_hal_cfg(&bfad->ioc_cfg);
607 bfad->cfg_data.ioc_queue_depth = bfad->ioc_cfg.fwcfg.num_ioim_reqs;
608 bfa_cfg_get_meminfo(&bfad->ioc_cfg, hal_meminfo, &bfad->bfa);
610 dma_info = &hal_meminfo->dma_info;
611 kva_info = &hal_meminfo->kva_info;
613 /* Iterate through the KVA meminfo queue */
614 list_for_each(km_qe, &kva_info->qe) {
615 kva_elem = (struct bfa_mem_kva_s *) km_qe;
616 kva_elem->kva = vmalloc(kva_elem->mem_len);
617 if (kva_elem->kva == NULL) {
618 bfad_hal_mem_release(bfad);
619 rc = BFA_STATUS_ENOMEM;
622 memset(kva_elem->kva, 0, kva_elem->mem_len);
625 /* Iterate through the DMA meminfo queue */
626 list_for_each(dm_qe, &dma_info->qe) {
627 dma_elem = (struct bfa_mem_dma_s *) dm_qe;
628 dma_elem->kva = dma_alloc_coherent(&bfad->pcidev->dev,
630 &phys_addr, GFP_KERNEL);
631 if (dma_elem->kva == NULL) {
632 bfad_hal_mem_release(bfad);
633 rc = BFA_STATUS_ENOMEM;
636 dma_elem->dma = phys_addr;
637 memset(dma_elem->kva, 0, dma_elem->mem_len);
644 * Create a vport under a vf.
647 bfad_vport_create(struct bfad_s *bfad, u16 vf_id,
648 struct bfa_lport_cfg_s *port_cfg, struct device *dev)
650 struct bfad_vport_s *vport;
651 int rc = BFA_STATUS_OK;
653 struct completion fcomp;
655 vport = kzalloc(sizeof(struct bfad_vport_s), GFP_KERNEL);
657 rc = BFA_STATUS_ENOMEM;
661 vport->drv_port.bfad = bfad;
662 spin_lock_irqsave(&bfad->bfad_lock, flags);
663 rc = bfa_fcs_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, vf_id,
665 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
667 if (rc != BFA_STATUS_OK)
670 if (port_cfg->roles & BFA_LPORT_ROLE_FCP_IM) {
671 rc = bfad_im_scsi_host_alloc(bfad, vport->drv_port.im_port,
673 if (rc != BFA_STATUS_OK)
674 goto ext_free_fcs_vport;
677 spin_lock_irqsave(&bfad->bfad_lock, flags);
678 bfa_fcs_vport_start(&vport->fcs_vport);
679 list_add_tail(&vport->list_entry, &bfad->vport_list);
680 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
682 return BFA_STATUS_OK;
685 spin_lock_irqsave(&bfad->bfad_lock, flags);
686 vport->comp_del = &fcomp;
687 init_completion(vport->comp_del);
688 bfa_fcs_vport_delete(&vport->fcs_vport);
689 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
690 wait_for_completion(vport->comp_del);
698 bfad_bfa_tmo(unsigned long data)
700 struct bfad_s *bfad = (struct bfad_s *) data;
702 struct list_head doneq;
704 spin_lock_irqsave(&bfad->bfad_lock, flags);
706 bfa_timer_beat(&bfad->bfa.timer_mod);
708 bfa_comp_deq(&bfad->bfa, &doneq);
709 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
711 if (!list_empty(&doneq)) {
712 bfa_comp_process(&bfad->bfa, &doneq);
713 spin_lock_irqsave(&bfad->bfad_lock, flags);
714 bfa_comp_free(&bfad->bfa, &doneq);
715 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
718 mod_timer(&bfad->hal_tmo,
719 jiffies + msecs_to_jiffies(BFA_TIMER_FREQ));
723 bfad_init_timer(struct bfad_s *bfad)
725 init_timer(&bfad->hal_tmo);
726 bfad->hal_tmo.function = bfad_bfa_tmo;
727 bfad->hal_tmo.data = (unsigned long)bfad;
729 mod_timer(&bfad->hal_tmo,
730 jiffies + msecs_to_jiffies(BFA_TIMER_FREQ));
734 bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad)
738 if (pci_enable_device(pdev)) {
739 printk(KERN_ERR "pci_enable_device fail %p\n", pdev);
743 if (pci_request_regions(pdev, BFAD_DRIVER_NAME))
744 goto out_disable_device;
746 pci_set_master(pdev);
749 if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) ||
750 (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)) {
751 if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) ||
752 (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)) {
753 printk(KERN_ERR "pci_set_dma_mask fail %p\n", pdev);
754 goto out_release_region;
758 /* Enable PCIE Advanced Error Recovery (AER) if kernel supports */
759 pci_enable_pcie_error_reporting(pdev);
761 bfad->pci_bar0_kva = pci_iomap(pdev, 0, pci_resource_len(pdev, 0));
762 bfad->pci_bar2_kva = pci_iomap(pdev, 2, pci_resource_len(pdev, 2));
764 if (bfad->pci_bar0_kva == NULL) {
765 printk(KERN_ERR "Fail to map bar0\n");
766 goto out_release_region;
769 bfad->hal_pcidev.pci_slot = PCI_SLOT(pdev->devfn);
770 bfad->hal_pcidev.pci_func = PCI_FUNC(pdev->devfn);
771 bfad->hal_pcidev.pci_bar_kva = bfad->pci_bar0_kva;
772 bfad->hal_pcidev.device_id = pdev->device;
773 bfad->hal_pcidev.ssid = pdev->subsystem_device;
774 bfad->pci_name = pci_name(pdev);
776 bfad->pci_attr.vendor_id = pdev->vendor;
777 bfad->pci_attr.device_id = pdev->device;
778 bfad->pci_attr.ssid = pdev->subsystem_device;
779 bfad->pci_attr.ssvid = pdev->subsystem_vendor;
780 bfad->pci_attr.pcifn = PCI_FUNC(pdev->devfn);
784 /* Adjust PCIe Maximum Read Request Size */
785 if (pci_is_pcie(pdev) && pcie_max_read_reqsz) {
786 if (pcie_max_read_reqsz >= 128 &&
787 pcie_max_read_reqsz <= 4096 &&
788 is_power_of_2(pcie_max_read_reqsz)) {
789 int max_rq = pcie_get_readrq(pdev);
790 printk(KERN_WARNING "BFA[%s]: "
791 "pcie_max_read_request_size is %d, "
792 "reset to %d\n", bfad->pci_name, max_rq,
793 pcie_max_read_reqsz);
794 pcie_set_readrq(pdev, pcie_max_read_reqsz);
796 printk(KERN_WARNING "BFA[%s]: invalid "
797 "pcie_max_read_request_size %d ignored\n",
798 bfad->pci_name, pcie_max_read_reqsz);
802 pci_save_state(pdev);
807 pci_release_regions(pdev);
809 pci_disable_device(pdev);
815 bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad)
817 pci_iounmap(pdev, bfad->pci_bar0_kva);
818 pci_iounmap(pdev, bfad->pci_bar2_kva);
819 pci_release_regions(pdev);
820 /* Disable PCIE Advanced Error Recovery (AER) */
821 pci_disable_pcie_error_reporting(pdev);
822 pci_disable_device(pdev);
826 bfad_drv_init(struct bfad_s *bfad)
831 bfad->cfg_data.rport_del_timeout = rport_del_timeout;
832 bfad->cfg_data.lun_queue_depth = bfa_lun_queue_depth;
833 bfad->cfg_data.io_max_sge = bfa_io_max_sge;
834 bfad->cfg_data.binding_method = FCP_PWWN_BINDING;
836 rc = bfad_hal_mem_alloc(bfad);
837 if (rc != BFA_STATUS_OK) {
838 printk(KERN_WARNING "bfad%d bfad_hal_mem_alloc failure\n",
841 "Not enough memory to attach all Brocade HBA ports, %s",
842 "System may need more memory.\n");
843 return BFA_STATUS_FAILED;
846 bfad->bfa.trcmod = bfad->trcmod;
847 bfad->bfa.plog = &bfad->plog_buf;
848 bfa_plog_init(&bfad->plog_buf);
849 bfa_plog_str(&bfad->plog_buf, BFA_PL_MID_DRVR, BFA_PL_EID_DRIVER_START,
852 bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg, &bfad->meminfo,
856 spin_lock_irqsave(&bfad->bfad_lock, flags);
857 bfad->bfa_fcs.trcmod = bfad->trcmod;
858 bfa_fcs_attach(&bfad->bfa_fcs, &bfad->bfa, bfad, BFA_FALSE);
859 bfad->bfa_fcs.fdmi_enabled = fdmi_enable;
860 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
862 bfad->bfad_flags |= BFAD_DRV_INIT_DONE;
864 return BFA_STATUS_OK;
868 bfad_drv_uninit(struct bfad_s *bfad)
872 spin_lock_irqsave(&bfad->bfad_lock, flags);
873 init_completion(&bfad->comp);
874 bfa_iocfc_stop(&bfad->bfa);
875 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
876 wait_for_completion(&bfad->comp);
878 del_timer_sync(&bfad->hal_tmo);
879 bfa_isr_disable(&bfad->bfa);
880 bfa_detach(&bfad->bfa);
881 bfad_remove_intr(bfad);
882 bfad_hal_mem_release(bfad);
884 bfad->bfad_flags &= ~BFAD_DRV_INIT_DONE;
888 bfad_drv_start(struct bfad_s *bfad)
892 spin_lock_irqsave(&bfad->bfad_lock, flags);
893 bfa_iocfc_start(&bfad->bfa);
894 bfa_fcs_pbc_vport_init(&bfad->bfa_fcs);
895 bfa_fcs_fabric_modstart(&bfad->bfa_fcs);
896 bfad->bfad_flags |= BFAD_HAL_START_DONE;
897 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
900 flush_workqueue(bfad->im->drv_workq);
904 bfad_fcs_stop(struct bfad_s *bfad)
908 spin_lock_irqsave(&bfad->bfad_lock, flags);
909 init_completion(&bfad->comp);
910 bfad->pport.flags |= BFAD_PORT_DELETE;
911 bfa_fcs_exit(&bfad->bfa_fcs);
912 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
913 wait_for_completion(&bfad->comp);
915 bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP);
919 bfad_stop(struct bfad_s *bfad)
923 spin_lock_irqsave(&bfad->bfad_lock, flags);
924 init_completion(&bfad->comp);
925 bfa_iocfc_stop(&bfad->bfa);
926 bfad->bfad_flags &= ~BFAD_HAL_START_DONE;
927 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
928 wait_for_completion(&bfad->comp);
930 bfa_sm_send_event(bfad, BFAD_E_EXIT_COMP);
934 bfad_cfg_pport(struct bfad_s *bfad, enum bfa_lport_role role)
936 int rc = BFA_STATUS_OK;
938 /* Allocate scsi_host for the physical port */
939 if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) &&
940 (role & BFA_LPORT_ROLE_FCP_IM)) {
941 if (bfad->pport.im_port == NULL) {
942 rc = BFA_STATUS_FAILED;
946 rc = bfad_im_scsi_host_alloc(bfad, bfad->pport.im_port,
948 if (rc != BFA_STATUS_OK)
951 bfad->pport.roles |= BFA_LPORT_ROLE_FCP_IM;
954 bfad->bfad_flags |= BFAD_CFG_PPORT_DONE;
961 bfad_uncfg_pport(struct bfad_s *bfad)
963 if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) &&
964 (bfad->pport.roles & BFA_LPORT_ROLE_FCP_IM)) {
965 bfad_im_scsi_host_free(bfad, bfad->pport.im_port);
966 bfad_im_port_clean(bfad->pport.im_port);
967 kfree(bfad->pport.im_port);
968 bfad->pport.roles &= ~BFA_LPORT_ROLE_FCP_IM;
971 bfad->bfad_flags &= ~BFAD_CFG_PPORT_DONE;
975 bfad_start_ops(struct bfad_s *bfad) {
979 struct bfad_vport_s *vport, *vport_new;
980 struct bfa_fcs_driver_info_s driver_info;
982 /* Limit min/max. xfer size to [64k-32MB] */
983 if (max_xfer_size < BFAD_MIN_SECTORS >> 1)
984 max_xfer_size = BFAD_MIN_SECTORS >> 1;
985 if (max_xfer_size > BFAD_MAX_SECTORS >> 1)
986 max_xfer_size = BFAD_MAX_SECTORS >> 1;
988 /* Fill the driver_info info to fcs*/
989 memset(&driver_info, 0, sizeof(driver_info));
990 strncpy(driver_info.version, BFAD_DRIVER_VERSION,
991 sizeof(driver_info.version) - 1);
993 strncpy(driver_info.host_machine_name, host_name,
994 sizeof(driver_info.host_machine_name) - 1);
996 strncpy(driver_info.host_os_name, os_name,
997 sizeof(driver_info.host_os_name) - 1);
999 strncpy(driver_info.host_os_patch, os_patch,
1000 sizeof(driver_info.host_os_patch) - 1);
1002 strncpy(driver_info.os_device_name, bfad->pci_name,
1003 sizeof(driver_info.os_device_name) - 1);
1005 /* FCS driver info init */
1006 spin_lock_irqsave(&bfad->bfad_lock, flags);
1007 bfa_fcs_driver_info_init(&bfad->bfa_fcs, &driver_info);
1009 if (bfad->bfad_flags & BFAD_CFG_PPORT_DONE)
1010 bfa_fcs_update_cfg(&bfad->bfa_fcs);
1012 bfa_fcs_init(&bfad->bfa_fcs);
1014 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1016 if (!(bfad->bfad_flags & BFAD_CFG_PPORT_DONE)) {
1017 retval = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM);
1018 if (retval != BFA_STATUS_OK)
1019 return BFA_STATUS_FAILED;
1022 /* Setup fc host fixed attribute if the lk supports */
1023 bfad_fc_host_init(bfad->pport.im_port);
1025 /* BFAD level FC4 IM specific resource allocation */
1026 retval = bfad_im_probe(bfad);
1027 if (retval != BFA_STATUS_OK) {
1028 printk(KERN_WARNING "bfad_im_probe failed\n");
1029 if (bfa_sm_cmp_state(bfad, bfad_sm_initializing))
1030 bfa_sm_set_state(bfad, bfad_sm_failed);
1031 return BFA_STATUS_FAILED;
1033 bfad->bfad_flags |= BFAD_FC4_PROBE_DONE;
1035 bfad_drv_start(bfad);
1037 /* Complete pbc vport create */
1038 list_for_each_entry_safe(vport, vport_new, &bfad->pbc_vport_list,
1040 struct fc_vport_identifiers vid;
1041 struct fc_vport *fc_vport;
1042 char pwwn_buf[BFA_STRING_32];
1044 memset(&vid, 0, sizeof(vid));
1045 vid.roles = FC_PORT_ROLE_FCP_INITIATOR;
1046 vid.vport_type = FC_PORTTYPE_NPIV;
1047 vid.disable = false;
1048 vid.node_name = wwn_to_u64((u8 *)
1049 (&((vport->fcs_vport).lport.port_cfg.nwwn)));
1050 vid.port_name = wwn_to_u64((u8 *)
1051 (&((vport->fcs_vport).lport.port_cfg.pwwn)));
1052 fc_vport = fc_vport_create(bfad->pport.im_port->shost, 0, &vid);
1054 wwn2str(pwwn_buf, vid.port_name);
1055 printk(KERN_WARNING "bfad%d: failed to create pbc vport"
1056 " %s\n", bfad->inst_no, pwwn_buf);
1058 list_del(&vport->list_entry);
1063 * If bfa_linkup_delay is set to -1 default; try to retrive the
1064 * value using the bfad_get_linkup_delay(); else use the
1065 * passed in module param value as the bfa_linkup_delay.
1067 if (bfa_linkup_delay < 0) {
1068 bfa_linkup_delay = bfad_get_linkup_delay(bfad);
1069 bfad_rport_online_wait(bfad);
1070 bfa_linkup_delay = -1;
1072 bfad_rport_online_wait(bfad);
1074 BFA_LOG(KERN_INFO, bfad, bfa_log_level, "bfa device claimed\n");
1076 return BFA_STATUS_OK;
1080 bfad_worker(void *ptr)
1082 struct bfad_s *bfad;
1083 unsigned long flags;
1085 bfad = (struct bfad_s *)ptr;
1087 while (!kthread_should_stop()) {
1089 /* Send event BFAD_E_INIT_SUCCESS */
1090 bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS);
1092 spin_lock_irqsave(&bfad->bfad_lock, flags);
1093 bfad->bfad_tsk = NULL;
1094 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1103 * BFA driver interrupt functions
1106 bfad_intx(int irq, void *dev_id)
1108 struct bfad_s *bfad = dev_id;
1109 struct list_head doneq;
1110 unsigned long flags;
1113 spin_lock_irqsave(&bfad->bfad_lock, flags);
1114 rc = bfa_intx(&bfad->bfa);
1116 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1120 bfa_comp_deq(&bfad->bfa, &doneq);
1121 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1123 if (!list_empty(&doneq)) {
1124 bfa_comp_process(&bfad->bfa, &doneq);
1126 spin_lock_irqsave(&bfad->bfad_lock, flags);
1127 bfa_comp_free(&bfad->bfa, &doneq);
1128 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1136 bfad_msix(int irq, void *dev_id)
1138 struct bfad_msix_s *vec = dev_id;
1139 struct bfad_s *bfad = vec->bfad;
1140 struct list_head doneq;
1141 unsigned long flags;
1143 spin_lock_irqsave(&bfad->bfad_lock, flags);
1145 bfa_msix(&bfad->bfa, vec->msix.entry);
1146 bfa_comp_deq(&bfad->bfa, &doneq);
1147 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1149 if (!list_empty(&doneq)) {
1150 bfa_comp_process(&bfad->bfa, &doneq);
1152 spin_lock_irqsave(&bfad->bfad_lock, flags);
1153 bfa_comp_free(&bfad->bfa, &doneq);
1154 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1161 * Initialize the MSIX entry table.
1164 bfad_init_msix_entry(struct bfad_s *bfad, struct msix_entry *msix_entries,
1165 int mask, int max_bit)
1168 int match = 0x00000001;
1170 for (i = 0, bfad->nvec = 0; i < MAX_MSIX_ENTRY; i++) {
1172 bfad->msix_tab[bfad->nvec].msix.entry = i;
1173 bfad->msix_tab[bfad->nvec].bfad = bfad;
1174 msix_entries[bfad->nvec].entry = i;
1184 bfad_install_msix_handler(struct bfad_s *bfad)
1188 for (i = 0; i < bfad->nvec; i++) {
1189 sprintf(bfad->msix_tab[i].name, "bfa-%s-%s",
1191 ((bfa_asic_id_cb(bfad->hal_pcidev.device_id)) ?
1192 msix_name_cb[i] : msix_name_ct[i]));
1194 error = request_irq(bfad->msix_tab[i].msix.vector,
1195 (irq_handler_t) bfad_msix, 0,
1196 bfad->msix_tab[i].name, &bfad->msix_tab[i]);
1198 bfa_trc(bfad, bfad->msix_tab[i].msix.vector);
1202 for (j = 0; j < i; j++)
1203 free_irq(bfad->msix_tab[j].msix.vector,
1204 &bfad->msix_tab[j]);
1206 bfad->bfad_flags &= ~BFAD_MSIX_ON;
1207 pci_disable_msix(bfad->pcidev);
1217 * Setup MSIX based interrupt.
1220 bfad_setup_intr(struct bfad_s *bfad)
1223 u32 mask = 0, i, num_bit = 0, max_bit = 0;
1224 struct msix_entry msix_entries[MAX_MSIX_ENTRY];
1225 struct pci_dev *pdev = bfad->pcidev;
1228 /* Call BFA to get the msix map for this PCI function. */
1229 bfa_msix_getvecs(&bfad->bfa, &mask, &num_bit, &max_bit);
1231 /* Set up the msix entry table */
1232 bfad_init_msix_entry(bfad, msix_entries, mask, max_bit);
1234 if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
1235 (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {
1237 error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
1238 /* In CT1 & CT2, try to allocate just one vector */
1239 if (error > 0 && bfa_asic_id_ctc(pdev->device)) {
1240 printk(KERN_WARNING "bfa %s: trying one msix "
1241 "vector failed to allocate %d[%d]\n",
1242 bfad->pci_name, bfad->nvec, error);
1244 error = pci_enable_msix(bfad->pcidev,
1245 msix_entries, bfad->nvec);
1249 * Only error number of vector is available.
1250 * We don't have a mechanism to map multiple
1251 * interrupts into one vector, so even if we
1252 * can try to request less vectors, we don't
1253 * know how to associate interrupt events to
1254 * vectors. Linux doesn't duplicate vectors
1255 * in the MSIX table for this case.
1258 printk(KERN_WARNING "bfad%d: "
1259 "pci_enable_msix failed (%d), "
1260 "use line based.\n",
1261 bfad->inst_no, error);
1265 /* Disable INTX in MSI-X mode */
1266 pci_read_config_word(pdev, PCI_COMMAND, ®);
1268 if (!(reg & PCI_COMMAND_INTX_DISABLE))
1269 pci_write_config_word(pdev, PCI_COMMAND,
1270 reg | PCI_COMMAND_INTX_DISABLE);
1272 /* Save the vectors */
1273 for (i = 0; i < bfad->nvec; i++) {
1274 bfa_trc(bfad, msix_entries[i].vector);
1275 bfad->msix_tab[i].msix.vector = msix_entries[i].vector;
1278 bfa_msix_init(&bfad->bfa, bfad->nvec);
1280 bfad->bfad_flags |= BFAD_MSIX_ON;
1288 (bfad->pcidev->irq, (irq_handler_t) bfad_intx, BFAD_IRQ_FLAGS,
1289 BFAD_DRIVER_NAME, bfad) != 0) {
1290 /* Enable interrupt handler failed */
1293 bfad->bfad_flags |= BFAD_INTX_ON;
1299 bfad_remove_intr(struct bfad_s *bfad)
1303 if (bfad->bfad_flags & BFAD_MSIX_ON) {
1304 for (i = 0; i < bfad->nvec; i++)
1305 free_irq(bfad->msix_tab[i].msix.vector,
1306 &bfad->msix_tab[i]);
1308 pci_disable_msix(bfad->pcidev);
1309 bfad->bfad_flags &= ~BFAD_MSIX_ON;
1310 } else if (bfad->bfad_flags & BFAD_INTX_ON) {
1311 free_irq(bfad->pcidev->irq, bfad);
1319 bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid)
1321 struct bfad_s *bfad;
1322 int error = -ENODEV, retval, i;
1324 /* For single port cards - only claim function 0 */
1325 if ((pdev->device == BFA_PCI_DEVICE_ID_FC_8G1P) &&
1326 (PCI_FUNC(pdev->devfn) != 0))
1329 bfad = kzalloc(sizeof(struct bfad_s), GFP_KERNEL);
1335 bfad->trcmod = kzalloc(sizeof(struct bfa_trc_mod_s), GFP_KERNEL);
1336 if (!bfad->trcmod) {
1337 printk(KERN_WARNING "Error alloc trace buffer!\n");
1339 goto out_alloc_trace_failure;
1343 bfa_trc_init(bfad->trcmod);
1344 bfa_trc(bfad, bfad_inst);
1347 INIT_LIST_HEAD(&bfad->free_aen_q);
1348 INIT_LIST_HEAD(&bfad->active_aen_q);
1349 for (i = 0; i < BFA_AEN_MAX_ENTRY; i++)
1350 list_add_tail(&bfad->aen_list[i].qe, &bfad->free_aen_q);
1352 if (!(bfad_load_fwimg(pdev))) {
1353 kfree(bfad->trcmod);
1354 goto out_alloc_trace_failure;
1357 retval = bfad_pci_init(pdev, bfad);
1359 printk(KERN_WARNING "bfad_pci_init failure!\n");
1361 goto out_pci_init_failure;
1364 mutex_lock(&bfad_mutex);
1365 bfad->inst_no = bfad_inst++;
1366 list_add_tail(&bfad->list_entry, &bfad_list);
1367 mutex_unlock(&bfad_mutex);
1369 /* Initializing the state machine: State set to uninit */
1370 bfa_sm_set_state(bfad, bfad_sm_uninit);
1372 spin_lock_init(&bfad->bfad_lock);
1373 spin_lock_init(&bfad->bfad_aen_spinlock);
1375 pci_set_drvdata(pdev, bfad);
1377 bfad->ref_count = 0;
1378 bfad->pport.bfad = bfad;
1379 INIT_LIST_HEAD(&bfad->pbc_vport_list);
1380 INIT_LIST_HEAD(&bfad->vport_list);
1382 /* Setup the debugfs node for this bfad */
1383 if (bfa_debugfs_enable)
1384 bfad_debugfs_init(&bfad->pport);
1386 retval = bfad_drv_init(bfad);
1387 if (retval != BFA_STATUS_OK)
1388 goto out_drv_init_failure;
1390 bfa_sm_send_event(bfad, BFAD_E_CREATE);
1392 if (bfa_sm_cmp_state(bfad, bfad_sm_uninit))
1393 goto out_bfad_sm_failure;
1397 out_bfad_sm_failure:
1398 bfad_hal_mem_release(bfad);
1399 out_drv_init_failure:
1400 /* Remove the debugfs node for this bfad */
1401 kfree(bfad->regdata);
1402 bfad_debugfs_exit(&bfad->pport);
1403 mutex_lock(&bfad_mutex);
1405 list_del(&bfad->list_entry);
1406 mutex_unlock(&bfad_mutex);
1407 bfad_pci_uninit(pdev, bfad);
1408 out_pci_init_failure:
1409 kfree(bfad->trcmod);
1410 out_alloc_trace_failure:
1420 bfad_pci_remove(struct pci_dev *pdev)
1422 struct bfad_s *bfad = pci_get_drvdata(pdev);
1423 unsigned long flags;
1425 bfa_trc(bfad, bfad->inst_no);
1427 spin_lock_irqsave(&bfad->bfad_lock, flags);
1428 if (bfad->bfad_tsk != NULL) {
1429 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1430 kthread_stop(bfad->bfad_tsk);
1432 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1435 /* Send Event BFAD_E_STOP */
1436 bfa_sm_send_event(bfad, BFAD_E_STOP);
1438 /* Driver detach and dealloc mem */
1439 spin_lock_irqsave(&bfad->bfad_lock, flags);
1440 bfa_detach(&bfad->bfa);
1441 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1442 bfad_hal_mem_release(bfad);
1444 /* Remove the debugfs node for this bfad */
1445 kfree(bfad->regdata);
1446 bfad_debugfs_exit(&bfad->pport);
1448 /* Cleaning the BFAD instance */
1449 mutex_lock(&bfad_mutex);
1451 list_del(&bfad->list_entry);
1452 mutex_unlock(&bfad_mutex);
1453 bfad_pci_uninit(pdev, bfad);
1455 kfree(bfad->trcmod);
1460 * PCI Error Recovery entry, error detected.
1462 static pci_ers_result_t
1463 bfad_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
1465 struct bfad_s *bfad = pci_get_drvdata(pdev);
1466 unsigned long flags;
1467 pci_ers_result_t ret = PCI_ERS_RESULT_NONE;
1469 dev_printk(KERN_ERR, &pdev->dev,
1470 "error detected state: %d - flags: 0x%x\n",
1471 state, bfad->bfad_flags);
1474 case pci_channel_io_normal: /* non-fatal error */
1475 spin_lock_irqsave(&bfad->bfad_lock, flags);
1476 bfad->bfad_flags &= ~BFAD_EEH_BUSY;
1477 /* Suspend/fail all bfa operations */
1478 bfa_ioc_suspend(&bfad->bfa.ioc);
1479 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1480 del_timer_sync(&bfad->hal_tmo);
1481 ret = PCI_ERS_RESULT_CAN_RECOVER;
1483 case pci_channel_io_frozen: /* fatal error */
1484 init_completion(&bfad->comp);
1485 spin_lock_irqsave(&bfad->bfad_lock, flags);
1486 bfad->bfad_flags |= BFAD_EEH_BUSY;
1487 /* Suspend/fail all bfa operations */
1488 bfa_ioc_suspend(&bfad->bfa.ioc);
1489 bfa_fcs_stop(&bfad->bfa_fcs);
1490 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1491 wait_for_completion(&bfad->comp);
1493 bfad_remove_intr(bfad);
1494 del_timer_sync(&bfad->hal_tmo);
1495 pci_disable_device(pdev);
1496 ret = PCI_ERS_RESULT_NEED_RESET;
1498 case pci_channel_io_perm_failure: /* PCI Card is DEAD */
1499 spin_lock_irqsave(&bfad->bfad_lock, flags);
1500 bfad->bfad_flags |= BFAD_EEH_BUSY |
1501 BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE;
1502 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1504 /* If the error_detected handler is called with the reason
1505 * pci_channel_io_perm_failure - it will subsequently call
1506 * pci_remove() entry point to remove the pci device from the
1507 * system - So defer the cleanup to pci_remove(); cleaning up
1508 * here causes inconsistent state during pci_remove().
1510 ret = PCI_ERS_RESULT_DISCONNECT;
1520 restart_bfa(struct bfad_s *bfad)
1522 unsigned long flags;
1523 struct pci_dev *pdev = bfad->pcidev;
1525 bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg,
1526 &bfad->meminfo, &bfad->hal_pcidev);
1528 /* Enable Interrupt and wait bfa_init completion */
1529 if (bfad_setup_intr(bfad)) {
1530 dev_printk(KERN_WARNING, &pdev->dev,
1531 "%s: bfad_setup_intr failed\n", bfad->pci_name);
1532 bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
1536 init_completion(&bfad->comp);
1537 spin_lock_irqsave(&bfad->bfad_lock, flags);
1538 bfa_iocfc_init(&bfad->bfa);
1539 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1541 /* Set up interrupt handler for each vectors */
1542 if ((bfad->bfad_flags & BFAD_MSIX_ON) &&
1543 bfad_install_msix_handler(bfad))
1544 dev_printk(KERN_WARNING, &pdev->dev,
1545 "%s: install_msix failed.\n", bfad->pci_name);
1547 bfad_init_timer(bfad);
1548 wait_for_completion(&bfad->comp);
1549 bfad_drv_start(bfad);
1555 * PCI Error Recovery entry, re-initialize the chip.
1557 static pci_ers_result_t
1558 bfad_pci_slot_reset(struct pci_dev *pdev)
1560 struct bfad_s *bfad = pci_get_drvdata(pdev);
1563 dev_printk(KERN_ERR, &pdev->dev,
1564 "bfad_pci_slot_reset flags: 0x%x\n", bfad->bfad_flags);
1566 if (pci_enable_device(pdev)) {
1567 dev_printk(KERN_ERR, &pdev->dev, "Cannot re-enable "
1568 "PCI device after reset.\n");
1569 return PCI_ERS_RESULT_DISCONNECT;
1572 pci_restore_state(pdev);
1575 * Read some byte (e.g. DMA max. payload size which can't
1576 * be 0xff any time) to make sure - we did not hit another PCI error
1577 * in the middle of recovery. If we did, then declare permanent failure.
1579 pci_read_config_byte(pdev, 0x68, &byte);
1581 dev_printk(KERN_ERR, &pdev->dev,
1582 "slot_reset failed ... got another PCI error !\n");
1583 goto out_disable_device;
1586 pci_save_state(pdev);
1587 pci_set_master(pdev);
1589 if (pci_set_dma_mask(bfad->pcidev, DMA_BIT_MASK(64)) != 0)
1590 if (pci_set_dma_mask(bfad->pcidev, DMA_BIT_MASK(32)) != 0)
1591 goto out_disable_device;
1593 pci_cleanup_aer_uncorrect_error_status(pdev);
1595 if (restart_bfa(bfad) == -1)
1596 goto out_disable_device;
1598 pci_enable_pcie_error_reporting(pdev);
1599 dev_printk(KERN_WARNING, &pdev->dev,
1600 "slot_reset completed flags: 0x%x!\n", bfad->bfad_flags);
1602 return PCI_ERS_RESULT_RECOVERED;
1605 pci_disable_device(pdev);
1606 return PCI_ERS_RESULT_DISCONNECT;
1609 static pci_ers_result_t
1610 bfad_pci_mmio_enabled(struct pci_dev *pdev)
1612 unsigned long flags;
1613 struct bfad_s *bfad = pci_get_drvdata(pdev);
1615 dev_printk(KERN_INFO, &pdev->dev, "mmio_enabled\n");
1617 /* Fetch FW diagnostic information */
1618 bfa_ioc_debug_save_ftrc(&bfad->bfa.ioc);
1620 /* Cancel all pending IOs */
1621 spin_lock_irqsave(&bfad->bfad_lock, flags);
1622 init_completion(&bfad->comp);
1623 bfa_fcs_stop(&bfad->bfa_fcs);
1624 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1625 wait_for_completion(&bfad->comp);
1627 bfad_remove_intr(bfad);
1628 del_timer_sync(&bfad->hal_tmo);
1629 pci_disable_device(pdev);
1631 return PCI_ERS_RESULT_NEED_RESET;
1635 bfad_pci_resume(struct pci_dev *pdev)
1637 unsigned long flags;
1638 struct bfad_s *bfad = pci_get_drvdata(pdev);
1640 dev_printk(KERN_WARNING, &pdev->dev, "resume\n");
1642 /* wait until the link is online */
1643 bfad_rport_online_wait(bfad);
1645 spin_lock_irqsave(&bfad->bfad_lock, flags);
1646 bfad->bfad_flags &= ~BFAD_EEH_BUSY;
1647 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1650 struct pci_device_id bfad_id_table[] = {
1652 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1653 .device = BFA_PCI_DEVICE_ID_FC_8G2P,
1654 .subvendor = PCI_ANY_ID,
1655 .subdevice = PCI_ANY_ID,
1658 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1659 .device = BFA_PCI_DEVICE_ID_FC_8G1P,
1660 .subvendor = PCI_ANY_ID,
1661 .subdevice = PCI_ANY_ID,
1664 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1665 .device = BFA_PCI_DEVICE_ID_CT,
1666 .subvendor = PCI_ANY_ID,
1667 .subdevice = PCI_ANY_ID,
1668 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1672 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1673 .device = BFA_PCI_DEVICE_ID_CT_FC,
1674 .subvendor = PCI_ANY_ID,
1675 .subdevice = PCI_ANY_ID,
1676 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1680 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1681 .device = BFA_PCI_DEVICE_ID_CT2,
1682 .subvendor = PCI_ANY_ID,
1683 .subdevice = PCI_ANY_ID,
1684 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1689 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1690 .device = BFA_PCI_DEVICE_ID_CT2_QUAD,
1691 .subvendor = PCI_ANY_ID,
1692 .subdevice = PCI_ANY_ID,
1693 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1699 MODULE_DEVICE_TABLE(pci, bfad_id_table);
1702 * PCI error recovery handlers.
1704 static struct pci_error_handlers bfad_err_handler = {
1705 .error_detected = bfad_pci_error_detected,
1706 .slot_reset = bfad_pci_slot_reset,
1707 .mmio_enabled = bfad_pci_mmio_enabled,
1708 .resume = bfad_pci_resume,
1711 static struct pci_driver bfad_pci_driver = {
1712 .name = BFAD_DRIVER_NAME,
1713 .id_table = bfad_id_table,
1714 .probe = bfad_pci_probe,
1715 .remove = bfad_pci_remove,
1716 .err_handler = &bfad_err_handler,
1720 * Driver module init.
1727 printk(KERN_INFO "Brocade BFA FC/FCOE SCSI driver - version: %s\n",
1728 BFAD_DRIVER_VERSION);
1731 num_sgpgs_parm = num_sgpgs;
1733 error = bfad_im_module_init();
1736 printk(KERN_WARNING "bfad_im_module_init failure\n");
1740 if (strcmp(FCPI_NAME, " fcpim") == 0)
1741 supported_fc4s |= BFA_LPORT_ROLE_FCP_IM;
1743 bfa_auto_recover = ioc_auto_recover;
1744 bfa_fcs_rport_set_del_timeout(rport_del_timeout);
1745 bfa_fcs_rport_set_max_logins(max_rport_logins);
1747 error = pci_register_driver(&bfad_pci_driver);
1749 printk(KERN_WARNING "pci_register_driver failure\n");
1756 bfad_im_module_exit();
1761 * Driver module exit.
1766 pci_unregister_driver(&bfad_pci_driver);
1767 bfad_im_module_exit();
1771 /* Firmware handling */
1773 bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
1774 u32 *bfi_image_size, char *fw_name)
1776 const struct firmware *fw;
1778 if (request_firmware(&fw, fw_name, &pdev->dev)) {
1779 printk(KERN_ALERT "Can't locate firmware %s\n", fw_name);
1784 *bfi_image = vmalloc(fw->size);
1785 if (NULL == *bfi_image) {
1786 printk(KERN_ALERT "Fail to allocate buffer for fw image "
1787 "size=%x!\n", (u32) fw->size);
1791 memcpy(*bfi_image, fw->data, fw->size);
1792 *bfi_image_size = fw->size/sizeof(u32);
1794 release_firmware(fw);
1798 bfad_load_fwimg(struct pci_dev *pdev)
1800 if (bfa_asic_id_ct2(pdev->device)) {
1801 if (bfi_image_ct2_size == 0)
1802 bfad_read_firmware(pdev, &bfi_image_ct2,
1803 &bfi_image_ct2_size, BFAD_FW_FILE_CT2);
1804 return bfi_image_ct2;
1805 } else if (bfa_asic_id_ct(pdev->device)) {
1806 if (bfi_image_ct_size == 0)
1807 bfad_read_firmware(pdev, &bfi_image_ct,
1808 &bfi_image_ct_size, BFAD_FW_FILE_CT);
1809 return bfi_image_ct;
1810 } else if (bfa_asic_id_cb(pdev->device)) {
1811 if (bfi_image_cb_size == 0)
1812 bfad_read_firmware(pdev, &bfi_image_cb,
1813 &bfi_image_cb_size, BFAD_FW_FILE_CB);
1814 return bfi_image_cb;
1821 bfad_free_fwimg(void)
1823 if (bfi_image_ct2_size && bfi_image_ct2)
1824 vfree(bfi_image_ct2);
1825 if (bfi_image_ct_size && bfi_image_ct)
1826 vfree(bfi_image_ct);
1827 if (bfi_image_cb_size && bfi_image_cb)
1828 vfree(bfi_image_cb);
1831 module_init(bfad_init);
1832 module_exit(bfad_exit);
1833 MODULE_LICENSE("GPL");
1834 MODULE_DESCRIPTION("Brocade Fibre Channel HBA Driver" BFAD_PROTO_NAME);
1835 MODULE_AUTHOR("Brocade Communications Systems, Inc.");
1836 MODULE_VERSION(BFAD_DRIVER_VERSION);