1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
4 * Copyright (c) 2014- QLogic Corporation.
5 * All rights reserved
6 * www.qlogic.com
7 *
8 * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
9 */
10
11 /*
12 * bfad.c Linux driver PCI interface module.
13 */
14 #include <linux/module.h>
15 #include <linux/kthread.h>
16 #include <linux/errno.h>
17 #include <linux/sched.h>
18 #include <linux/init.h>
19 #include <linux/fs.h>
20 #include <linux/pci.h>
21 #include <linux/firmware.h>
22 #include <linux/uaccess.h>
23 #include <asm/fcntl.h>
24
25 #include "bfad_drv.h"
26 #include "bfad_im.h"
27 #include "bfa_fcs.h"
28 #include "bfa_defs.h"
29 #include "bfa.h"
30
31 BFA_TRC_FILE(LDRV, BFAD);
32 DEFINE_MUTEX(bfad_mutex);
33 LIST_HEAD(bfad_list);
34
35 static int bfad_inst;
36 static int num_sgpgs_parm;
37 int supported_fc4s;
38 char *host_name, *os_name, *os_patch;
39 int num_rports, num_ios, num_tms;
40 int num_fcxps, num_ufbufs;
41 int reqq_size, rspq_size, num_sgpgs;
42 int rport_del_timeout = BFA_FCS_RPORT_DEF_DEL_TIMEOUT;
43 int bfa_lun_queue_depth = BFAD_LUN_QUEUE_DEPTH;
44 int bfa_io_max_sge = BFAD_IO_MAX_SGE;
45 int bfa_log_level = 3; /* WARNING log level */
46 int ioc_auto_recover = BFA_TRUE;
47 int bfa_linkup_delay = -1;
48 int fdmi_enable = BFA_TRUE;
49 int pcie_max_read_reqsz;
50 int bfa_debugfs_enable = 1;
51 int msix_disable_cb = 0, msix_disable_ct = 0;
52 int max_xfer_size = BFAD_MAX_SECTORS >> 1;
53 static int max_rport_logins = BFA_FCS_MAX_RPORT_LOGINS;
54
55 /* Firmware releated */
56 u32 bfi_image_cb_size, bfi_image_ct_size, bfi_image_ct2_size;
57 u32 *bfi_image_cb, *bfi_image_ct, *bfi_image_ct2;
58
59 #define BFAD_FW_FILE_CB "cbfw-3.2.5.1.bin"
60 #define BFAD_FW_FILE_CT "ctfw-3.2.5.1.bin"
61 #define BFAD_FW_FILE_CT2 "ct2fw-3.2.5.1.bin"
62
63 static u32 *bfad_load_fwimg(struct pci_dev *pdev);
64 static void bfad_free_fwimg(void);
65 static void bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
66 u32 *bfi_image_size, char *fw_name);
67
68 static const char *msix_name_ct[] = {
69 "ctrl",
70 "cpe0", "cpe1", "cpe2", "cpe3",
71 "rme0", "rme1", "rme2", "rme3" };
72
73 static const char *msix_name_cb[] = {
74 "cpe0", "cpe1", "cpe2", "cpe3",
75 "rme0", "rme1", "rme2", "rme3",
76 "eemc", "elpu0", "elpu1", "epss", "mlpu" };
77
78 MODULE_FIRMWARE(BFAD_FW_FILE_CB);
79 MODULE_FIRMWARE(BFAD_FW_FILE_CT);
80 MODULE_FIRMWARE(BFAD_FW_FILE_CT2);
81
82 module_param(os_name, charp, S_IRUGO | S_IWUSR);
83 MODULE_PARM_DESC(os_name, "OS name of the hba host machine");
84 module_param(os_patch, charp, S_IRUGO | S_IWUSR);
85 MODULE_PARM_DESC(os_patch, "OS patch level of the hba host machine");
86 module_param(host_name, charp, S_IRUGO | S_IWUSR);
87 MODULE_PARM_DESC(host_name, "Hostname of the hba host machine");
88 module_param(num_rports, int, S_IRUGO | S_IWUSR);
89 MODULE_PARM_DESC(num_rports, "Max number of rports supported per port "
90 "(physical/logical), default=1024");
91 module_param(num_ios, int, S_IRUGO | S_IWUSR);
92 MODULE_PARM_DESC(num_ios, "Max number of ioim requests, default=2000");
93 module_param(num_tms, int, S_IRUGO | S_IWUSR);
94 MODULE_PARM_DESC(num_tms, "Max number of task im requests, default=128");
95 module_param(num_fcxps, int, S_IRUGO | S_IWUSR);
96 MODULE_PARM_DESC(num_fcxps, "Max number of fcxp requests, default=64");
97 module_param(num_ufbufs, int, S_IRUGO | S_IWUSR);
98 MODULE_PARM_DESC(num_ufbufs, "Max number of unsolicited frame "
99 "buffers, default=64");
100 module_param(reqq_size, int, S_IRUGO | S_IWUSR);
101 MODULE_PARM_DESC(reqq_size, "Max number of request queue elements, "
102 "default=256");
103 module_param(rspq_size, int, S_IRUGO | S_IWUSR);
104 MODULE_PARM_DESC(rspq_size, "Max number of response queue elements, "
105 "default=64");
106 module_param(num_sgpgs, int, S_IRUGO | S_IWUSR);
107 MODULE_PARM_DESC(num_sgpgs, "Number of scatter/gather pages, default=2048");
108 module_param(rport_del_timeout, int, S_IRUGO | S_IWUSR);
109 MODULE_PARM_DESC(rport_del_timeout, "Rport delete timeout, default=90 secs, "
110 "Range[>0]");
111 module_param(bfa_lun_queue_depth, int, S_IRUGO | S_IWUSR);
112 MODULE_PARM_DESC(bfa_lun_queue_depth, "Lun queue depth, default=32, Range[>0]");
113 module_param(bfa_io_max_sge, int, S_IRUGO | S_IWUSR);
114 MODULE_PARM_DESC(bfa_io_max_sge, "Max io scatter/gather elements, default=255");
115 module_param(bfa_log_level, int, S_IRUGO | S_IWUSR);
116 MODULE_PARM_DESC(bfa_log_level, "Driver log level, default=3, "
117 "Range[Critical:1|Error:2|Warning:3|Info:4]");
118 module_param(ioc_auto_recover, int, S_IRUGO | S_IWUSR);
119 MODULE_PARM_DESC(ioc_auto_recover, "IOC auto recovery, default=1, "
120 "Range[off:0|on:1]");
121 module_param(bfa_linkup_delay, int, S_IRUGO | S_IWUSR);
122 MODULE_PARM_DESC(bfa_linkup_delay, "Link up delay, default=30 secs for "
123 "boot port. Otherwise 10 secs in RHEL4 & 0 for "
124 "[RHEL5, SLES10, ESX40] Range[>0]");
125 module_param(msix_disable_cb, int, S_IRUGO | S_IWUSR);
126 MODULE_PARM_DESC(msix_disable_cb, "Disable Message Signaled Interrupts for QLogic-415/425/815/825 cards, default=0 Range[false:0|true:1]");
127 module_param(msix_disable_ct, int, S_IRUGO | S_IWUSR);
128 MODULE_PARM_DESC(msix_disable_ct, "Disable Message Signaled Interrupts if possible for QLogic-1010/1020/804/1007/902/1741 cards, default=0, Range[false:0|true:1]");
129 module_param(fdmi_enable, int, S_IRUGO | S_IWUSR);
130 MODULE_PARM_DESC(fdmi_enable, "Enables fdmi registration, default=1, "
131 "Range[false:0|true:1]");
132 module_param(pcie_max_read_reqsz, int, S_IRUGO | S_IWUSR);
133 MODULE_PARM_DESC(pcie_max_read_reqsz, "PCIe max read request size, default=0 "
134 "(use system setting), Range[128|256|512|1024|2048|4096]");
135 module_param(bfa_debugfs_enable, int, S_IRUGO | S_IWUSR);
136 MODULE_PARM_DESC(bfa_debugfs_enable, "Enables debugfs feature, default=1,"
137 " Range[false:0|true:1]");
138 module_param(max_xfer_size, int, S_IRUGO | S_IWUSR);
139 MODULE_PARM_DESC(max_xfer_size, "default=32MB,"
140 " Range[64k|128k|256k|512k|1024k|2048k]");
141 module_param(max_rport_logins, int, S_IRUGO | S_IWUSR);
142 MODULE_PARM_DESC(max_rport_logins, "Max number of logins to initiator and target rports on a port (physical/logical), default=1024");
143
144 static void
145 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event);
146 static void
147 bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event);
148 static void
149 bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event);
150 static void
151 bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event);
152 static void
153 bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event);
154 static void
155 bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event);
156 static void
157 bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event);
158
159 /*
160 * Beginning state for the driver instance, awaiting the pci_probe event
161 */
162 static void
bfad_sm_uninit(struct bfad_s * bfad,enum bfad_sm_event event)163 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event)
164 {
165 bfa_trc(bfad, event);
166
167 switch (event) {
168 case BFAD_E_CREATE:
169 bfa_sm_set_state(bfad, bfad_sm_created);
170 bfad->bfad_tsk = kthread_create(bfad_worker, (void *) bfad,
171 "%s", "bfad_worker");
172 if (IS_ERR(bfad->bfad_tsk)) {
173 printk(KERN_INFO "bfad[%d]: Kernel thread "
174 "creation failed!\n", bfad->inst_no);
175 bfa_sm_send_event(bfad, BFAD_E_KTHREAD_CREATE_FAILED);
176 }
177 bfa_sm_send_event(bfad, BFAD_E_INIT);
178 break;
179
180 case BFAD_E_STOP:
181 /* Ignore stop; already in uninit */
182 break;
183
184 default:
185 bfa_sm_fault(bfad, event);
186 }
187 }
188
189 /*
190 * Driver Instance is created, awaiting event INIT to initialize the bfad
191 */
192 static void
bfad_sm_created(struct bfad_s * bfad,enum bfad_sm_event event)193 bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event)
194 {
195 unsigned long flags;
196 bfa_status_t ret;
197
198 bfa_trc(bfad, event);
199
200 switch (event) {
201 case BFAD_E_INIT:
202 bfa_sm_set_state(bfad, bfad_sm_initializing);
203
204 init_completion(&bfad->comp);
205
206 /* Enable Interrupt and wait bfa_init completion */
207 if (bfad_setup_intr(bfad)) {
208 printk(KERN_WARNING "bfad%d: bfad_setup_intr failed\n",
209 bfad->inst_no);
210 bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
211 break;
212 }
213
214 spin_lock_irqsave(&bfad->bfad_lock, flags);
215 bfa_iocfc_init(&bfad->bfa);
216 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
217
218 /* Set up interrupt handler for each vectors */
219 if ((bfad->bfad_flags & BFAD_MSIX_ON) &&
220 bfad_install_msix_handler(bfad)) {
221 printk(KERN_WARNING "%s: install_msix failed, bfad%d\n",
222 __func__, bfad->inst_no);
223 }
224
225 bfad_init_timer(bfad);
226
227 wait_for_completion(&bfad->comp);
228
229 if ((bfad->bfad_flags & BFAD_HAL_INIT_DONE)) {
230 bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS);
231 } else {
232 printk(KERN_WARNING
233 "bfa %s: bfa init failed\n",
234 bfad->pci_name);
235 spin_lock_irqsave(&bfad->bfad_lock, flags);
236 bfa_fcs_init(&bfad->bfa_fcs);
237 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
238
239 ret = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM);
240 if (ret != BFA_STATUS_OK) {
241 init_completion(&bfad->comp);
242
243 spin_lock_irqsave(&bfad->bfad_lock, flags);
244 bfad->pport.flags |= BFAD_PORT_DELETE;
245 bfa_fcs_exit(&bfad->bfa_fcs);
246 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
247
248 wait_for_completion(&bfad->comp);
249
250 bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
251 break;
252 }
253 bfad->bfad_flags |= BFAD_HAL_INIT_FAIL;
254 bfa_sm_send_event(bfad, BFAD_E_HAL_INIT_FAILED);
255 }
256
257 break;
258
259 case BFAD_E_KTHREAD_CREATE_FAILED:
260 bfa_sm_set_state(bfad, bfad_sm_uninit);
261 break;
262
263 default:
264 bfa_sm_fault(bfad, event);
265 }
266 }
267
268 static void
bfad_sm_initializing(struct bfad_s * bfad,enum bfad_sm_event event)269 bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event)
270 {
271 int retval;
272 unsigned long flags;
273
274 bfa_trc(bfad, event);
275
276 switch (event) {
277 case BFAD_E_INIT_SUCCESS:
278 kthread_stop(bfad->bfad_tsk);
279 spin_lock_irqsave(&bfad->bfad_lock, flags);
280 bfad->bfad_tsk = NULL;
281 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
282
283 retval = bfad_start_ops(bfad);
284 if (retval != BFA_STATUS_OK) {
285 bfa_sm_set_state(bfad, bfad_sm_failed);
286 break;
287 }
288 bfa_sm_set_state(bfad, bfad_sm_operational);
289 break;
290
291 case BFAD_E_INIT_FAILED:
292 bfa_sm_set_state(bfad, bfad_sm_uninit);
293 kthread_stop(bfad->bfad_tsk);
294 spin_lock_irqsave(&bfad->bfad_lock, flags);
295 bfad->bfad_tsk = NULL;
296 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
297 break;
298
299 case BFAD_E_HAL_INIT_FAILED:
300 bfa_sm_set_state(bfad, bfad_sm_failed);
301 break;
302 default:
303 bfa_sm_fault(bfad, event);
304 }
305 }
306
307 static void
bfad_sm_failed(struct bfad_s * bfad,enum bfad_sm_event event)308 bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event)
309 {
310 int retval;
311
312 bfa_trc(bfad, event);
313
314 switch (event) {
315 case BFAD_E_INIT_SUCCESS:
316 retval = bfad_start_ops(bfad);
317 if (retval != BFA_STATUS_OK)
318 break;
319 bfa_sm_set_state(bfad, bfad_sm_operational);
320 break;
321
322 case BFAD_E_STOP:
323 bfa_sm_set_state(bfad, bfad_sm_fcs_exit);
324 bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP);
325 break;
326
327 case BFAD_E_EXIT_COMP:
328 bfa_sm_set_state(bfad, bfad_sm_uninit);
329 bfad_remove_intr(bfad);
330 del_timer_sync(&bfad->hal_tmo);
331 break;
332
333 default:
334 bfa_sm_fault(bfad, event);
335 }
336 }
337
338 static void
bfad_sm_operational(struct bfad_s * bfad,enum bfad_sm_event event)339 bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event)
340 {
341 bfa_trc(bfad, event);
342
343 switch (event) {
344 case BFAD_E_STOP:
345 bfa_sm_set_state(bfad, bfad_sm_fcs_exit);
346 bfad_fcs_stop(bfad);
347 break;
348
349 default:
350 bfa_sm_fault(bfad, event);
351 }
352 }
353
354 static void
bfad_sm_fcs_exit(struct bfad_s * bfad,enum bfad_sm_event event)355 bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event)
356 {
357 bfa_trc(bfad, event);
358
359 switch (event) {
360 case BFAD_E_FCS_EXIT_COMP:
361 bfa_sm_set_state(bfad, bfad_sm_stopping);
362 bfad_stop(bfad);
363 break;
364
365 default:
366 bfa_sm_fault(bfad, event);
367 }
368 }
369
370 static void
bfad_sm_stopping(struct bfad_s * bfad,enum bfad_sm_event event)371 bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event)
372 {
373 bfa_trc(bfad, event);
374
375 switch (event) {
376 case BFAD_E_EXIT_COMP:
377 bfa_sm_set_state(bfad, bfad_sm_uninit);
378 bfad_remove_intr(bfad);
379 del_timer_sync(&bfad->hal_tmo);
380 bfad_im_probe_undo(bfad);
381 bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE;
382 bfad_uncfg_pport(bfad);
383 break;
384
385 default:
386 bfa_sm_fault(bfad, event);
387 break;
388 }
389 }
390
391 /*
392 * BFA callbacks
393 */
394 void
bfad_hcb_comp(void * arg,bfa_status_t status)395 bfad_hcb_comp(void *arg, bfa_status_t status)
396 {
397 struct bfad_hal_comp *fcomp = (struct bfad_hal_comp *)arg;
398
399 fcomp->status = status;
400 complete(&fcomp->comp);
401 }
402
403 /*
404 * bfa_init callback
405 */
406 void
bfa_cb_init(void * drv,bfa_status_t init_status)407 bfa_cb_init(void *drv, bfa_status_t init_status)
408 {
409 struct bfad_s *bfad = drv;
410
411 if (init_status == BFA_STATUS_OK) {
412 bfad->bfad_flags |= BFAD_HAL_INIT_DONE;
413
414 /*
415 * If BFAD_HAL_INIT_FAIL flag is set:
416 * Wake up the kernel thread to start
417 * the bfad operations after HAL init done
418 */
419 if ((bfad->bfad_flags & BFAD_HAL_INIT_FAIL)) {
420 bfad->bfad_flags &= ~BFAD_HAL_INIT_FAIL;
421 wake_up_process(bfad->bfad_tsk);
422 }
423 }
424
425 complete(&bfad->comp);
426 }
427
428 /*
429 * BFA_FCS callbacks
430 */
431 struct bfad_port_s *
bfa_fcb_lport_new(struct bfad_s * bfad,struct bfa_fcs_lport_s * port,enum bfa_lport_role roles,struct bfad_vf_s * vf_drv,struct bfad_vport_s * vp_drv)432 bfa_fcb_lport_new(struct bfad_s *bfad, struct bfa_fcs_lport_s *port,
433 enum bfa_lport_role roles, struct bfad_vf_s *vf_drv,
434 struct bfad_vport_s *vp_drv)
435 {
436 bfa_status_t rc;
437 struct bfad_port_s *port_drv;
438
439 if (!vp_drv && !vf_drv) {
440 port_drv = &bfad->pport;
441 port_drv->pvb_type = BFAD_PORT_PHYS_BASE;
442 } else if (!vp_drv && vf_drv) {
443 port_drv = &vf_drv->base_port;
444 port_drv->pvb_type = BFAD_PORT_VF_BASE;
445 } else if (vp_drv && !vf_drv) {
446 port_drv = &vp_drv->drv_port;
447 port_drv->pvb_type = BFAD_PORT_PHYS_VPORT;
448 } else {
449 port_drv = &vp_drv->drv_port;
450 port_drv->pvb_type = BFAD_PORT_VF_VPORT;
451 }
452
453 port_drv->fcs_port = port;
454 port_drv->roles = roles;
455
456 if (roles & BFA_LPORT_ROLE_FCP_IM) {
457 rc = bfad_im_port_new(bfad, port_drv);
458 if (rc != BFA_STATUS_OK) {
459 bfad_im_port_delete(bfad, port_drv);
460 port_drv = NULL;
461 }
462 }
463
464 return port_drv;
465 }
466
467 /*
468 * FCS RPORT alloc callback, after successful PLOGI by FCS
469 */
470 bfa_status_t
bfa_fcb_rport_alloc(struct bfad_s * bfad,struct bfa_fcs_rport_s ** rport,struct bfad_rport_s ** rport_drv)471 bfa_fcb_rport_alloc(struct bfad_s *bfad, struct bfa_fcs_rport_s **rport,
472 struct bfad_rport_s **rport_drv)
473 {
474 bfa_status_t rc = BFA_STATUS_OK;
475
476 *rport_drv = kzalloc(sizeof(struct bfad_rport_s), GFP_ATOMIC);
477 if (*rport_drv == NULL) {
478 rc = BFA_STATUS_ENOMEM;
479 goto ext;
480 }
481
482 *rport = &(*rport_drv)->fcs_rport;
483
484 ext:
485 return rc;
486 }
487
488 /*
489 * FCS PBC VPORT Create
490 */
491 void
bfa_fcb_pbc_vport_create(struct bfad_s * bfad,struct bfi_pbc_vport_s pbc_vport)492 bfa_fcb_pbc_vport_create(struct bfad_s *bfad, struct bfi_pbc_vport_s pbc_vport)
493 {
494
495 struct bfa_lport_cfg_s port_cfg = {0};
496 struct bfad_vport_s *vport;
497 int rc;
498
499 vport = kzalloc(sizeof(struct bfad_vport_s), GFP_ATOMIC);
500 if (!vport) {
501 bfa_trc(bfad, 0);
502 return;
503 }
504
505 vport->drv_port.bfad = bfad;
506 port_cfg.roles = BFA_LPORT_ROLE_FCP_IM;
507 port_cfg.pwwn = pbc_vport.vp_pwwn;
508 port_cfg.nwwn = pbc_vport.vp_nwwn;
509 port_cfg.preboot_vp = BFA_TRUE;
510
511 rc = bfa_fcs_pbc_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, 0,
512 &port_cfg, vport);
513
514 if (rc != BFA_STATUS_OK) {
515 bfa_trc(bfad, 0);
516 return;
517 }
518
519 list_add_tail(&vport->list_entry, &bfad->pbc_vport_list);
520 }
521
522 void
bfad_hal_mem_release(struct bfad_s * bfad)523 bfad_hal_mem_release(struct bfad_s *bfad)
524 {
525 struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo;
526 struct bfa_mem_dma_s *dma_info, *dma_elem;
527 struct bfa_mem_kva_s *kva_info, *kva_elem;
528 struct list_head *dm_qe, *km_qe;
529
530 dma_info = &hal_meminfo->dma_info;
531 kva_info = &hal_meminfo->kva_info;
532
533 /* Iterate through the KVA meminfo queue */
534 list_for_each(km_qe, &kva_info->qe) {
535 kva_elem = (struct bfa_mem_kva_s *) km_qe;
536 vfree(kva_elem->kva);
537 }
538
539 /* Iterate through the DMA meminfo queue */
540 list_for_each(dm_qe, &dma_info->qe) {
541 dma_elem = (struct bfa_mem_dma_s *) dm_qe;
542 dma_free_coherent(&bfad->pcidev->dev,
543 dma_elem->mem_len, dma_elem->kva,
544 (dma_addr_t) dma_elem->dma);
545 }
546
547 memset(hal_meminfo, 0, sizeof(struct bfa_meminfo_s));
548 }
549
550 void
bfad_update_hal_cfg(struct bfa_iocfc_cfg_s * bfa_cfg)551 bfad_update_hal_cfg(struct bfa_iocfc_cfg_s *bfa_cfg)
552 {
553 if (num_rports > 0)
554 bfa_cfg->fwcfg.num_rports = num_rports;
555 if (num_ios > 0)
556 bfa_cfg->fwcfg.num_ioim_reqs = num_ios;
557 if (num_tms > 0)
558 bfa_cfg->fwcfg.num_tskim_reqs = num_tms;
559 if (num_fcxps > 0 && num_fcxps <= BFA_FCXP_MAX)
560 bfa_cfg->fwcfg.num_fcxp_reqs = num_fcxps;
561 if (num_ufbufs > 0 && num_ufbufs <= BFA_UF_MAX)
562 bfa_cfg->fwcfg.num_uf_bufs = num_ufbufs;
563 if (reqq_size > 0)
564 bfa_cfg->drvcfg.num_reqq_elems = reqq_size;
565 if (rspq_size > 0)
566 bfa_cfg->drvcfg.num_rspq_elems = rspq_size;
567 if (num_sgpgs > 0 && num_sgpgs <= BFA_SGPG_MAX)
568 bfa_cfg->drvcfg.num_sgpgs = num_sgpgs;
569
570 /*
571 * populate the hal values back to the driver for sysfs use.
572 * otherwise, the default values will be shown as 0 in sysfs
573 */
574 num_rports = bfa_cfg->fwcfg.num_rports;
575 num_ios = bfa_cfg->fwcfg.num_ioim_reqs;
576 num_tms = bfa_cfg->fwcfg.num_tskim_reqs;
577 num_fcxps = bfa_cfg->fwcfg.num_fcxp_reqs;
578 num_ufbufs = bfa_cfg->fwcfg.num_uf_bufs;
579 reqq_size = bfa_cfg->drvcfg.num_reqq_elems;
580 rspq_size = bfa_cfg->drvcfg.num_rspq_elems;
581 num_sgpgs = bfa_cfg->drvcfg.num_sgpgs;
582 }
583
584 bfa_status_t
bfad_hal_mem_alloc(struct bfad_s * bfad)585 bfad_hal_mem_alloc(struct bfad_s *bfad)
586 {
587 struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo;
588 struct bfa_mem_dma_s *dma_info, *dma_elem;
589 struct bfa_mem_kva_s *kva_info, *kva_elem;
590 struct list_head *dm_qe, *km_qe;
591 bfa_status_t rc = BFA_STATUS_OK;
592 dma_addr_t phys_addr;
593
594 bfa_cfg_get_default(&bfad->ioc_cfg);
595 bfad_update_hal_cfg(&bfad->ioc_cfg);
596 bfad->cfg_data.ioc_queue_depth = bfad->ioc_cfg.fwcfg.num_ioim_reqs;
597 bfa_cfg_get_meminfo(&bfad->ioc_cfg, hal_meminfo, &bfad->bfa);
598
599 dma_info = &hal_meminfo->dma_info;
600 kva_info = &hal_meminfo->kva_info;
601
602 /* Iterate through the KVA meminfo queue */
603 list_for_each(km_qe, &kva_info->qe) {
604 kva_elem = (struct bfa_mem_kva_s *) km_qe;
605 kva_elem->kva = vzalloc(kva_elem->mem_len);
606 if (kva_elem->kva == NULL) {
607 bfad_hal_mem_release(bfad);
608 rc = BFA_STATUS_ENOMEM;
609 goto ext;
610 }
611 }
612
613 /* Iterate through the DMA meminfo queue */
614 list_for_each(dm_qe, &dma_info->qe) {
615 dma_elem = (struct bfa_mem_dma_s *) dm_qe;
616 dma_elem->kva = dma_alloc_coherent(&bfad->pcidev->dev,
617 dma_elem->mem_len,
618 &phys_addr, GFP_KERNEL);
619 if (dma_elem->kva == NULL) {
620 bfad_hal_mem_release(bfad);
621 rc = BFA_STATUS_ENOMEM;
622 goto ext;
623 }
624 dma_elem->dma = phys_addr;
625 memset(dma_elem->kva, 0, dma_elem->mem_len);
626 }
627 ext:
628 return rc;
629 }
630
631 /*
632 * Create a vport under a vf.
633 */
634 bfa_status_t
bfad_vport_create(struct bfad_s * bfad,u16 vf_id,struct bfa_lport_cfg_s * port_cfg,struct device * dev)635 bfad_vport_create(struct bfad_s *bfad, u16 vf_id,
636 struct bfa_lport_cfg_s *port_cfg, struct device *dev)
637 {
638 struct bfad_vport_s *vport;
639 int rc = BFA_STATUS_OK;
640 unsigned long flags;
641 struct completion fcomp;
642
643 vport = kzalloc(sizeof(struct bfad_vport_s), GFP_KERNEL);
644 if (!vport) {
645 rc = BFA_STATUS_ENOMEM;
646 goto ext;
647 }
648
649 vport->drv_port.bfad = bfad;
650 spin_lock_irqsave(&bfad->bfad_lock, flags);
651 rc = bfa_fcs_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, vf_id,
652 port_cfg, vport);
653 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
654
655 if (rc != BFA_STATUS_OK)
656 goto ext_free_vport;
657
658 if (port_cfg->roles & BFA_LPORT_ROLE_FCP_IM) {
659 rc = bfad_im_scsi_host_alloc(bfad, vport->drv_port.im_port,
660 dev);
661 if (rc != BFA_STATUS_OK)
662 goto ext_free_fcs_vport;
663 }
664
665 spin_lock_irqsave(&bfad->bfad_lock, flags);
666 bfa_fcs_vport_start(&vport->fcs_vport);
667 list_add_tail(&vport->list_entry, &bfad->vport_list);
668 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
669
670 return BFA_STATUS_OK;
671
672 ext_free_fcs_vport:
673 spin_lock_irqsave(&bfad->bfad_lock, flags);
674 vport->comp_del = &fcomp;
675 init_completion(vport->comp_del);
676 bfa_fcs_vport_delete(&vport->fcs_vport);
677 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
678 wait_for_completion(vport->comp_del);
679 ext_free_vport:
680 kfree(vport);
681 ext:
682 return rc;
683 }
684
685 void
bfad_bfa_tmo(struct timer_list * t)686 bfad_bfa_tmo(struct timer_list *t)
687 {
688 struct bfad_s *bfad = from_timer(bfad, t, hal_tmo);
689 unsigned long flags;
690 struct list_head doneq;
691
692 spin_lock_irqsave(&bfad->bfad_lock, flags);
693
694 bfa_timer_beat(&bfad->bfa.timer_mod);
695
696 bfa_comp_deq(&bfad->bfa, &doneq);
697 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
698
699 if (!list_empty(&doneq)) {
700 bfa_comp_process(&bfad->bfa, &doneq);
701 spin_lock_irqsave(&bfad->bfad_lock, flags);
702 bfa_comp_free(&bfad->bfa, &doneq);
703 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
704 }
705
706 mod_timer(&bfad->hal_tmo,
707 jiffies + msecs_to_jiffies(BFA_TIMER_FREQ));
708 }
709
710 void
bfad_init_timer(struct bfad_s * bfad)711 bfad_init_timer(struct bfad_s *bfad)
712 {
713 timer_setup(&bfad->hal_tmo, bfad_bfa_tmo, 0);
714
715 mod_timer(&bfad->hal_tmo,
716 jiffies + msecs_to_jiffies(BFA_TIMER_FREQ));
717 }
718
719 int
bfad_pci_init(struct pci_dev * pdev,struct bfad_s * bfad)720 bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad)
721 {
722 int rc = -ENODEV;
723
724 if (pci_enable_device(pdev)) {
725 printk(KERN_ERR "pci_enable_device fail %p\n", pdev);
726 goto out;
727 }
728
729 if (pci_request_regions(pdev, BFAD_DRIVER_NAME))
730 goto out_disable_device;
731
732 pci_set_master(pdev);
733
734 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
735 if (rc) {
736 rc = -ENODEV;
737 printk(KERN_ERR "dma_set_mask_and_coherent fail %p\n", pdev);
738 goto out_release_region;
739 }
740
741 bfad->pci_bar0_kva = pci_iomap(pdev, 0, pci_resource_len(pdev, 0));
742 bfad->pci_bar2_kva = pci_iomap(pdev, 2, pci_resource_len(pdev, 2));
743
744 if (bfad->pci_bar0_kva == NULL) {
745 printk(KERN_ERR "Fail to map bar0\n");
746 rc = -ENODEV;
747 goto out_release_region;
748 }
749
750 bfad->hal_pcidev.pci_slot = PCI_SLOT(pdev->devfn);
751 bfad->hal_pcidev.pci_func = PCI_FUNC(pdev->devfn);
752 bfad->hal_pcidev.pci_bar_kva = bfad->pci_bar0_kva;
753 bfad->hal_pcidev.device_id = pdev->device;
754 bfad->hal_pcidev.ssid = pdev->subsystem_device;
755 bfad->pci_name = pci_name(pdev);
756
757 bfad->pci_attr.vendor_id = pdev->vendor;
758 bfad->pci_attr.device_id = pdev->device;
759 bfad->pci_attr.ssid = pdev->subsystem_device;
760 bfad->pci_attr.ssvid = pdev->subsystem_vendor;
761 bfad->pci_attr.pcifn = PCI_FUNC(pdev->devfn);
762
763 bfad->pcidev = pdev;
764
765 /* Adjust PCIe Maximum Read Request Size */
766 if (pci_is_pcie(pdev) && pcie_max_read_reqsz) {
767 if (pcie_max_read_reqsz >= 128 &&
768 pcie_max_read_reqsz <= 4096 &&
769 is_power_of_2(pcie_max_read_reqsz)) {
770 int max_rq = pcie_get_readrq(pdev);
771 printk(KERN_WARNING "BFA[%s]: "
772 "pcie_max_read_request_size is %d, "
773 "reset to %d\n", bfad->pci_name, max_rq,
774 pcie_max_read_reqsz);
775 pcie_set_readrq(pdev, pcie_max_read_reqsz);
776 } else {
777 printk(KERN_WARNING "BFA[%s]: invalid "
778 "pcie_max_read_request_size %d ignored\n",
779 bfad->pci_name, pcie_max_read_reqsz);
780 }
781 }
782
783 pci_save_state(pdev);
784
785 return 0;
786
787 out_release_region:
788 pci_release_regions(pdev);
789 out_disable_device:
790 pci_disable_device(pdev);
791 out:
792 return rc;
793 }
794
795 void
bfad_pci_uninit(struct pci_dev * pdev,struct bfad_s * bfad)796 bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad)
797 {
798 pci_iounmap(pdev, bfad->pci_bar0_kva);
799 pci_iounmap(pdev, bfad->pci_bar2_kva);
800 pci_release_regions(pdev);
801 pci_disable_device(pdev);
802 }
803
804 bfa_status_t
bfad_drv_init(struct bfad_s * bfad)805 bfad_drv_init(struct bfad_s *bfad)
806 {
807 bfa_status_t rc;
808 unsigned long flags;
809
810 bfad->cfg_data.rport_del_timeout = rport_del_timeout;
811 bfad->cfg_data.lun_queue_depth = bfa_lun_queue_depth;
812 bfad->cfg_data.io_max_sge = bfa_io_max_sge;
813 bfad->cfg_data.binding_method = FCP_PWWN_BINDING;
814
815 rc = bfad_hal_mem_alloc(bfad);
816 if (rc != BFA_STATUS_OK) {
817 printk(KERN_WARNING "bfad%d bfad_hal_mem_alloc failure\n",
818 bfad->inst_no);
819 printk(KERN_WARNING
820 "Not enough memory to attach all QLogic BR-series HBA ports. System may need more memory.\n");
821 return BFA_STATUS_FAILED;
822 }
823
824 bfad->bfa.trcmod = bfad->trcmod;
825 bfad->bfa.plog = &bfad->plog_buf;
826 bfa_plog_init(&bfad->plog_buf);
827 bfa_plog_str(&bfad->plog_buf, BFA_PL_MID_DRVR, BFA_PL_EID_DRIVER_START,
828 0, "Driver Attach");
829
830 bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg, &bfad->meminfo,
831 &bfad->hal_pcidev);
832
833 /* FCS INIT */
834 spin_lock_irqsave(&bfad->bfad_lock, flags);
835 bfad->bfa_fcs.trcmod = bfad->trcmod;
836 bfa_fcs_attach(&bfad->bfa_fcs, &bfad->bfa, bfad, BFA_FALSE);
837 bfad->bfa_fcs.fdmi_enabled = fdmi_enable;
838 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
839
840 bfad->bfad_flags |= BFAD_DRV_INIT_DONE;
841
842 return BFA_STATUS_OK;
843 }
844
845 void
bfad_drv_uninit(struct bfad_s * bfad)846 bfad_drv_uninit(struct bfad_s *bfad)
847 {
848 unsigned long flags;
849
850 spin_lock_irqsave(&bfad->bfad_lock, flags);
851 init_completion(&bfad->comp);
852 bfa_iocfc_stop(&bfad->bfa);
853 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
854 wait_for_completion(&bfad->comp);
855
856 del_timer_sync(&bfad->hal_tmo);
857 bfa_isr_disable(&bfad->bfa);
858 bfa_detach(&bfad->bfa);
859 bfad_remove_intr(bfad);
860 bfad_hal_mem_release(bfad);
861
862 bfad->bfad_flags &= ~BFAD_DRV_INIT_DONE;
863 }
864
865 void
bfad_drv_start(struct bfad_s * bfad)866 bfad_drv_start(struct bfad_s *bfad)
867 {
868 unsigned long flags;
869
870 spin_lock_irqsave(&bfad->bfad_lock, flags);
871 bfa_iocfc_start(&bfad->bfa);
872 bfa_fcs_pbc_vport_init(&bfad->bfa_fcs);
873 bfa_fcs_fabric_modstart(&bfad->bfa_fcs);
874 bfad->bfad_flags |= BFAD_HAL_START_DONE;
875 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
876
877 if (bfad->im)
878 flush_workqueue(bfad->im->drv_workq);
879 }
880
881 void
bfad_fcs_stop(struct bfad_s * bfad)882 bfad_fcs_stop(struct bfad_s *bfad)
883 {
884 unsigned long flags;
885
886 spin_lock_irqsave(&bfad->bfad_lock, flags);
887 init_completion(&bfad->comp);
888 bfad->pport.flags |= BFAD_PORT_DELETE;
889 bfa_fcs_exit(&bfad->bfa_fcs);
890 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
891 wait_for_completion(&bfad->comp);
892
893 bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP);
894 }
895
896 void
bfad_stop(struct bfad_s * bfad)897 bfad_stop(struct bfad_s *bfad)
898 {
899 unsigned long flags;
900
901 spin_lock_irqsave(&bfad->bfad_lock, flags);
902 init_completion(&bfad->comp);
903 bfa_iocfc_stop(&bfad->bfa);
904 bfad->bfad_flags &= ~BFAD_HAL_START_DONE;
905 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
906 wait_for_completion(&bfad->comp);
907
908 bfa_sm_send_event(bfad, BFAD_E_EXIT_COMP);
909 }
910
911 bfa_status_t
bfad_cfg_pport(struct bfad_s * bfad,enum bfa_lport_role role)912 bfad_cfg_pport(struct bfad_s *bfad, enum bfa_lport_role role)
913 {
914 int rc = BFA_STATUS_OK;
915
916 /* Allocate scsi_host for the physical port */
917 if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) &&
918 (role & BFA_LPORT_ROLE_FCP_IM)) {
919 if (bfad->pport.im_port == NULL) {
920 rc = BFA_STATUS_FAILED;
921 goto out;
922 }
923
924 rc = bfad_im_scsi_host_alloc(bfad, bfad->pport.im_port,
925 &bfad->pcidev->dev);
926 if (rc != BFA_STATUS_OK)
927 goto out;
928
929 bfad->pport.roles |= BFA_LPORT_ROLE_FCP_IM;
930 }
931
932 bfad->bfad_flags |= BFAD_CFG_PPORT_DONE;
933
934 out:
935 return rc;
936 }
937
938 void
bfad_uncfg_pport(struct bfad_s * bfad)939 bfad_uncfg_pport(struct bfad_s *bfad)
940 {
941 if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) &&
942 (bfad->pport.roles & BFA_LPORT_ROLE_FCP_IM)) {
943 bfad_im_scsi_host_free(bfad, bfad->pport.im_port);
944 bfad_im_port_clean(bfad->pport.im_port);
945 kfree(bfad->pport.im_port);
946 bfad->pport.roles &= ~BFA_LPORT_ROLE_FCP_IM;
947 }
948
949 bfad->bfad_flags &= ~BFAD_CFG_PPORT_DONE;
950 }
951
952 bfa_status_t
bfad_start_ops(struct bfad_s * bfad)953 bfad_start_ops(struct bfad_s *bfad) {
954
955 int retval;
956 unsigned long flags;
957 struct bfad_vport_s *vport, *vport_new;
958 struct bfa_fcs_driver_info_s driver_info;
959
960 /* Limit min/max. xfer size to [64k-32MB] */
961 if (max_xfer_size < BFAD_MIN_SECTORS >> 1)
962 max_xfer_size = BFAD_MIN_SECTORS >> 1;
963 if (max_xfer_size > BFAD_MAX_SECTORS >> 1)
964 max_xfer_size = BFAD_MAX_SECTORS >> 1;
965
966 /* Fill the driver_info info to fcs*/
967 memset(&driver_info, 0, sizeof(driver_info));
968 strscpy(driver_info.version, BFAD_DRIVER_VERSION,
969 sizeof(driver_info.version));
970 if (host_name)
971 strscpy(driver_info.host_machine_name, host_name,
972 sizeof(driver_info.host_machine_name));
973 if (os_name)
974 strscpy(driver_info.host_os_name, os_name,
975 sizeof(driver_info.host_os_name));
976 if (os_patch)
977 strscpy(driver_info.host_os_patch, os_patch,
978 sizeof(driver_info.host_os_patch));
979
980 strscpy(driver_info.os_device_name, bfad->pci_name,
981 sizeof(driver_info.os_device_name));
982
983 /* FCS driver info init */
984 spin_lock_irqsave(&bfad->bfad_lock, flags);
985 bfa_fcs_driver_info_init(&bfad->bfa_fcs, &driver_info);
986
987 if (bfad->bfad_flags & BFAD_CFG_PPORT_DONE)
988 bfa_fcs_update_cfg(&bfad->bfa_fcs);
989 else
990 bfa_fcs_init(&bfad->bfa_fcs);
991
992 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
993
994 if (!(bfad->bfad_flags & BFAD_CFG_PPORT_DONE)) {
995 retval = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM);
996 if (retval != BFA_STATUS_OK)
997 return BFA_STATUS_FAILED;
998 }
999
1000 /* Setup fc host fixed attribute if the lk supports */
1001 bfad_fc_host_init(bfad->pport.im_port);
1002
1003 /* BFAD level FC4 IM specific resource allocation */
1004 retval = bfad_im_probe(bfad);
1005 if (retval != BFA_STATUS_OK) {
1006 printk(KERN_WARNING "bfad_im_probe failed\n");
1007 if (bfa_sm_cmp_state(bfad, bfad_sm_initializing))
1008 bfa_sm_set_state(bfad, bfad_sm_failed);
1009 return BFA_STATUS_FAILED;
1010 } else
1011 bfad->bfad_flags |= BFAD_FC4_PROBE_DONE;
1012
1013 bfad_drv_start(bfad);
1014
1015 /* Complete pbc vport create */
1016 list_for_each_entry_safe(vport, vport_new, &bfad->pbc_vport_list,
1017 list_entry) {
1018 struct fc_vport_identifiers vid;
1019 struct fc_vport *fc_vport;
1020 char pwwn_buf[BFA_STRING_32];
1021
1022 memset(&vid, 0, sizeof(vid));
1023 vid.roles = FC_PORT_ROLE_FCP_INITIATOR;
1024 vid.vport_type = FC_PORTTYPE_NPIV;
1025 vid.disable = false;
1026 vid.node_name = wwn_to_u64((u8 *)
1027 (&((vport->fcs_vport).lport.port_cfg.nwwn)));
1028 vid.port_name = wwn_to_u64((u8 *)
1029 (&((vport->fcs_vport).lport.port_cfg.pwwn)));
1030 fc_vport = fc_vport_create(bfad->pport.im_port->shost, 0, &vid);
1031 if (!fc_vport) {
1032 wwn2str(pwwn_buf, vid.port_name);
1033 printk(KERN_WARNING "bfad%d: failed to create pbc vport"
1034 " %s\n", bfad->inst_no, pwwn_buf);
1035 }
1036 list_del(&vport->list_entry);
1037 kfree(vport);
1038 }
1039
1040 /*
1041 * If bfa_linkup_delay is set to -1 default; try to retrive the
1042 * value using the bfad_get_linkup_delay(); else use the
1043 * passed in module param value as the bfa_linkup_delay.
1044 */
1045 if (bfa_linkup_delay < 0) {
1046 bfa_linkup_delay = bfad_get_linkup_delay(bfad);
1047 bfad_rport_online_wait(bfad);
1048 bfa_linkup_delay = -1;
1049 } else
1050 bfad_rport_online_wait(bfad);
1051
1052 BFA_LOG(KERN_INFO, bfad, bfa_log_level, "bfa device claimed\n");
1053
1054 return BFA_STATUS_OK;
1055 }
1056
1057 int
bfad_worker(void * ptr)1058 bfad_worker(void *ptr)
1059 {
1060 struct bfad_s *bfad = ptr;
1061 unsigned long flags;
1062
1063 if (kthread_should_stop())
1064 return 0;
1065
1066 /* Send event BFAD_E_INIT_SUCCESS */
1067 bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS);
1068
1069 spin_lock_irqsave(&bfad->bfad_lock, flags);
1070 bfad->bfad_tsk = NULL;
1071 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1072
1073 return 0;
1074 }
1075
1076 /*
1077 * BFA driver interrupt functions
1078 */
1079 irqreturn_t
bfad_intx(int irq,void * dev_id)1080 bfad_intx(int irq, void *dev_id)
1081 {
1082 struct bfad_s *bfad = dev_id;
1083 struct list_head doneq;
1084 unsigned long flags;
1085 bfa_boolean_t rc;
1086
1087 spin_lock_irqsave(&bfad->bfad_lock, flags);
1088 rc = bfa_intx(&bfad->bfa);
1089 if (!rc) {
1090 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1091 return IRQ_NONE;
1092 }
1093
1094 bfa_comp_deq(&bfad->bfa, &doneq);
1095 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1096
1097 if (!list_empty(&doneq)) {
1098 bfa_comp_process(&bfad->bfa, &doneq);
1099
1100 spin_lock_irqsave(&bfad->bfad_lock, flags);
1101 bfa_comp_free(&bfad->bfa, &doneq);
1102 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1103 }
1104
1105 return IRQ_HANDLED;
1106
1107 }
1108
1109 static irqreturn_t
bfad_msix(int irq,void * dev_id)1110 bfad_msix(int irq, void *dev_id)
1111 {
1112 struct bfad_msix_s *vec = dev_id;
1113 struct bfad_s *bfad = vec->bfad;
1114 struct list_head doneq;
1115 unsigned long flags;
1116
1117 spin_lock_irqsave(&bfad->bfad_lock, flags);
1118
1119 bfa_msix(&bfad->bfa, vec->msix.entry);
1120 bfa_comp_deq(&bfad->bfa, &doneq);
1121 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1122
1123 if (!list_empty(&doneq)) {
1124 bfa_comp_process(&bfad->bfa, &doneq);
1125
1126 spin_lock_irqsave(&bfad->bfad_lock, flags);
1127 bfa_comp_free(&bfad->bfa, &doneq);
1128 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1129 }
1130
1131 return IRQ_HANDLED;
1132 }
1133
1134 /*
1135 * Initialize the MSIX entry table.
1136 */
1137 static void
bfad_init_msix_entry(struct bfad_s * bfad,struct msix_entry * msix_entries,int mask,int max_bit)1138 bfad_init_msix_entry(struct bfad_s *bfad, struct msix_entry *msix_entries,
1139 int mask, int max_bit)
1140 {
1141 int i;
1142 int match = 0x00000001;
1143
1144 for (i = 0, bfad->nvec = 0; i < MAX_MSIX_ENTRY; i++) {
1145 if (mask & match) {
1146 bfad->msix_tab[bfad->nvec].msix.entry = i;
1147 bfad->msix_tab[bfad->nvec].bfad = bfad;
1148 msix_entries[bfad->nvec].entry = i;
1149 bfad->nvec++;
1150 }
1151
1152 match <<= 1;
1153 }
1154
1155 }
1156
1157 int
bfad_install_msix_handler(struct bfad_s * bfad)1158 bfad_install_msix_handler(struct bfad_s *bfad)
1159 {
1160 int i, error = 0;
1161
1162 for (i = 0; i < bfad->nvec; i++) {
1163 sprintf(bfad->msix_tab[i].name, "bfa-%s-%s",
1164 bfad->pci_name,
1165 ((bfa_asic_id_cb(bfad->hal_pcidev.device_id)) ?
1166 msix_name_cb[i] : msix_name_ct[i]));
1167
1168 error = request_irq(bfad->msix_tab[i].msix.vector,
1169 (irq_handler_t) bfad_msix, 0,
1170 bfad->msix_tab[i].name, &bfad->msix_tab[i]);
1171 bfa_trc(bfad, i);
1172 bfa_trc(bfad, bfad->msix_tab[i].msix.vector);
1173 if (error) {
1174 int j;
1175
1176 for (j = 0; j < i; j++)
1177 free_irq(bfad->msix_tab[j].msix.vector,
1178 &bfad->msix_tab[j]);
1179
1180 bfad->bfad_flags &= ~BFAD_MSIX_ON;
1181 pci_disable_msix(bfad->pcidev);
1182
1183 return 1;
1184 }
1185 }
1186
1187 return 0;
1188 }
1189
1190 /*
1191 * Setup MSIX based interrupt.
1192 */
1193 int
bfad_setup_intr(struct bfad_s * bfad)1194 bfad_setup_intr(struct bfad_s *bfad)
1195 {
1196 int error;
1197 u32 mask = 0, i, num_bit = 0, max_bit = 0;
1198 struct msix_entry msix_entries[MAX_MSIX_ENTRY];
1199 struct pci_dev *pdev = bfad->pcidev;
1200 u16 reg;
1201
1202 /* Call BFA to get the msix map for this PCI function. */
1203 bfa_msix_getvecs(&bfad->bfa, &mask, &num_bit, &max_bit);
1204
1205 /* Set up the msix entry table */
1206 bfad_init_msix_entry(bfad, msix_entries, mask, max_bit);
1207
1208 if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
1209 (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {
1210
1211 error = pci_enable_msix_exact(bfad->pcidev,
1212 msix_entries, bfad->nvec);
1213 /* In CT1 & CT2, try to allocate just one vector */
1214 if (error == -ENOSPC && bfa_asic_id_ctc(pdev->device)) {
1215 printk(KERN_WARNING "bfa %s: trying one msix "
1216 "vector failed to allocate %d[%d]\n",
1217 bfad->pci_name, bfad->nvec, error);
1218 bfad->nvec = 1;
1219 error = pci_enable_msix_exact(bfad->pcidev,
1220 msix_entries, 1);
1221 }
1222
1223 if (error) {
1224 printk(KERN_WARNING "bfad%d: "
1225 "pci_enable_msix_exact failed (%d), "
1226 "use line based.\n",
1227 bfad->inst_no, error);
1228 goto line_based;
1229 }
1230
1231 /* Disable INTX in MSI-X mode */
1232 pci_read_config_word(pdev, PCI_COMMAND, ®);
1233
1234 if (!(reg & PCI_COMMAND_INTX_DISABLE))
1235 pci_write_config_word(pdev, PCI_COMMAND,
1236 reg | PCI_COMMAND_INTX_DISABLE);
1237
1238 /* Save the vectors */
1239 for (i = 0; i < bfad->nvec; i++) {
1240 bfa_trc(bfad, msix_entries[i].vector);
1241 bfad->msix_tab[i].msix.vector = msix_entries[i].vector;
1242 }
1243
1244 bfa_msix_init(&bfad->bfa, bfad->nvec);
1245
1246 bfad->bfad_flags |= BFAD_MSIX_ON;
1247
1248 return 0;
1249 }
1250
1251 line_based:
1252 error = request_irq(bfad->pcidev->irq, (irq_handler_t)bfad_intx,
1253 BFAD_IRQ_FLAGS, BFAD_DRIVER_NAME, bfad);
1254 if (error)
1255 return error;
1256
1257 bfad->bfad_flags |= BFAD_INTX_ON;
1258
1259 return 0;
1260 }
1261
1262 void
bfad_remove_intr(struct bfad_s * bfad)1263 bfad_remove_intr(struct bfad_s *bfad)
1264 {
1265 int i;
1266
1267 if (bfad->bfad_flags & BFAD_MSIX_ON) {
1268 for (i = 0; i < bfad->nvec; i++)
1269 free_irq(bfad->msix_tab[i].msix.vector,
1270 &bfad->msix_tab[i]);
1271
1272 pci_disable_msix(bfad->pcidev);
1273 bfad->bfad_flags &= ~BFAD_MSIX_ON;
1274 } else if (bfad->bfad_flags & BFAD_INTX_ON) {
1275 free_irq(bfad->pcidev->irq, bfad);
1276 }
1277 }
1278
1279 /*
1280 * PCI probe entry.
1281 */
1282 int
bfad_pci_probe(struct pci_dev * pdev,const struct pci_device_id * pid)1283 bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid)
1284 {
1285 struct bfad_s *bfad;
1286 int error = -ENODEV, retval, i;
1287
1288 /* For single port cards - only claim function 0 */
1289 if ((pdev->device == BFA_PCI_DEVICE_ID_FC_8G1P) &&
1290 (PCI_FUNC(pdev->devfn) != 0))
1291 return -ENODEV;
1292
1293 bfad = kzalloc(sizeof(struct bfad_s), GFP_KERNEL);
1294 if (!bfad) {
1295 error = -ENOMEM;
1296 goto out;
1297 }
1298
1299 bfad->trcmod = kzalloc(sizeof(struct bfa_trc_mod_s), GFP_KERNEL);
1300 if (!bfad->trcmod) {
1301 printk(KERN_WARNING "Error alloc trace buffer!\n");
1302 error = -ENOMEM;
1303 goto out_alloc_trace_failure;
1304 }
1305
1306 /* TRACE INIT */
1307 bfa_trc_init(bfad->trcmod);
1308 bfa_trc(bfad, bfad_inst);
1309
1310 /* AEN INIT */
1311 INIT_LIST_HEAD(&bfad->free_aen_q);
1312 INIT_LIST_HEAD(&bfad->active_aen_q);
1313 for (i = 0; i < BFA_AEN_MAX_ENTRY; i++)
1314 list_add_tail(&bfad->aen_list[i].qe, &bfad->free_aen_q);
1315
1316 if (!(bfad_load_fwimg(pdev))) {
1317 kfree(bfad->trcmod);
1318 goto out_alloc_trace_failure;
1319 }
1320
1321 retval = bfad_pci_init(pdev, bfad);
1322 if (retval) {
1323 printk(KERN_WARNING "bfad_pci_init failure!\n");
1324 error = retval;
1325 goto out_pci_init_failure;
1326 }
1327
1328 mutex_lock(&bfad_mutex);
1329 bfad->inst_no = bfad_inst++;
1330 list_add_tail(&bfad->list_entry, &bfad_list);
1331 mutex_unlock(&bfad_mutex);
1332
1333 /* Initializing the state machine: State set to uninit */
1334 bfa_sm_set_state(bfad, bfad_sm_uninit);
1335
1336 spin_lock_init(&bfad->bfad_lock);
1337 spin_lock_init(&bfad->bfad_aen_spinlock);
1338
1339 pci_set_drvdata(pdev, bfad);
1340
1341 bfad->ref_count = 0;
1342 bfad->pport.bfad = bfad;
1343 INIT_LIST_HEAD(&bfad->pbc_vport_list);
1344 INIT_LIST_HEAD(&bfad->vport_list);
1345
1346 /* Setup the debugfs node for this bfad */
1347 if (bfa_debugfs_enable)
1348 bfad_debugfs_init(&bfad->pport);
1349
1350 retval = bfad_drv_init(bfad);
1351 if (retval != BFA_STATUS_OK)
1352 goto out_drv_init_failure;
1353
1354 bfa_sm_send_event(bfad, BFAD_E_CREATE);
1355
1356 if (bfa_sm_cmp_state(bfad, bfad_sm_uninit))
1357 goto out_bfad_sm_failure;
1358
1359 return 0;
1360
1361 out_bfad_sm_failure:
1362 bfad_hal_mem_release(bfad);
1363 out_drv_init_failure:
1364 /* Remove the debugfs node for this bfad */
1365 kfree(bfad->regdata);
1366 bfad_debugfs_exit(&bfad->pport);
1367 mutex_lock(&bfad_mutex);
1368 bfad_inst--;
1369 list_del(&bfad->list_entry);
1370 mutex_unlock(&bfad_mutex);
1371 bfad_pci_uninit(pdev, bfad);
1372 out_pci_init_failure:
1373 kfree(bfad->trcmod);
1374 out_alloc_trace_failure:
1375 kfree(bfad);
1376 out:
1377 return error;
1378 }
1379
1380 /*
1381 * PCI remove entry.
1382 */
1383 void
bfad_pci_remove(struct pci_dev * pdev)1384 bfad_pci_remove(struct pci_dev *pdev)
1385 {
1386 struct bfad_s *bfad = pci_get_drvdata(pdev);
1387 unsigned long flags;
1388
1389 bfa_trc(bfad, bfad->inst_no);
1390
1391 spin_lock_irqsave(&bfad->bfad_lock, flags);
1392 if (bfad->bfad_tsk != NULL) {
1393 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1394 kthread_stop(bfad->bfad_tsk);
1395 } else {
1396 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1397 }
1398
1399 /* Send Event BFAD_E_STOP */
1400 bfa_sm_send_event(bfad, BFAD_E_STOP);
1401
1402 /* Driver detach and dealloc mem */
1403 spin_lock_irqsave(&bfad->bfad_lock, flags);
1404 bfa_detach(&bfad->bfa);
1405 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1406 bfad_hal_mem_release(bfad);
1407
1408 /* Remove the debugfs node for this bfad */
1409 kfree(bfad->regdata);
1410 bfad_debugfs_exit(&bfad->pport);
1411
1412 /* Cleaning the BFAD instance */
1413 mutex_lock(&bfad_mutex);
1414 bfad_inst--;
1415 list_del(&bfad->list_entry);
1416 mutex_unlock(&bfad_mutex);
1417 bfad_pci_uninit(pdev, bfad);
1418
1419 kfree(bfad->trcmod);
1420 kfree(bfad);
1421 }
1422
1423 /*
1424 * PCI Error Recovery entry, error detected.
1425 */
1426 static pci_ers_result_t
bfad_pci_error_detected(struct pci_dev * pdev,pci_channel_state_t state)1427 bfad_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
1428 {
1429 struct bfad_s *bfad = pci_get_drvdata(pdev);
1430 unsigned long flags;
1431 pci_ers_result_t ret = PCI_ERS_RESULT_NONE;
1432
1433 dev_printk(KERN_ERR, &pdev->dev,
1434 "error detected state: %d - flags: 0x%x\n",
1435 state, bfad->bfad_flags);
1436
1437 switch (state) {
1438 case pci_channel_io_normal: /* non-fatal error */
1439 spin_lock_irqsave(&bfad->bfad_lock, flags);
1440 bfad->bfad_flags &= ~BFAD_EEH_BUSY;
1441 /* Suspend/fail all bfa operations */
1442 bfa_ioc_suspend(&bfad->bfa.ioc);
1443 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1444 del_timer_sync(&bfad->hal_tmo);
1445 ret = PCI_ERS_RESULT_CAN_RECOVER;
1446 break;
1447 case pci_channel_io_frozen: /* fatal error */
1448 init_completion(&bfad->comp);
1449 spin_lock_irqsave(&bfad->bfad_lock, flags);
1450 bfad->bfad_flags |= BFAD_EEH_BUSY;
1451 /* Suspend/fail all bfa operations */
1452 bfa_ioc_suspend(&bfad->bfa.ioc);
1453 bfa_fcs_stop(&bfad->bfa_fcs);
1454 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1455 wait_for_completion(&bfad->comp);
1456
1457 bfad_remove_intr(bfad);
1458 del_timer_sync(&bfad->hal_tmo);
1459 pci_disable_device(pdev);
1460 ret = PCI_ERS_RESULT_NEED_RESET;
1461 break;
1462 case pci_channel_io_perm_failure: /* PCI Card is DEAD */
1463 spin_lock_irqsave(&bfad->bfad_lock, flags);
1464 bfad->bfad_flags |= BFAD_EEH_BUSY |
1465 BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE;
1466 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1467
1468 /* If the error_detected handler is called with the reason
1469 * pci_channel_io_perm_failure - it will subsequently call
1470 * pci_remove() entry point to remove the pci device from the
1471 * system - So defer the cleanup to pci_remove(); cleaning up
1472 * here causes inconsistent state during pci_remove().
1473 */
1474 ret = PCI_ERS_RESULT_DISCONNECT;
1475 break;
1476 default:
1477 WARN_ON(1);
1478 }
1479
1480 return ret;
1481 }
1482
restart_bfa(struct bfad_s * bfad)1483 static int restart_bfa(struct bfad_s *bfad)
1484 {
1485 unsigned long flags;
1486 struct pci_dev *pdev = bfad->pcidev;
1487
1488 bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg,
1489 &bfad->meminfo, &bfad->hal_pcidev);
1490
1491 /* Enable Interrupt and wait bfa_init completion */
1492 if (bfad_setup_intr(bfad)) {
1493 dev_printk(KERN_WARNING, &pdev->dev,
1494 "%s: bfad_setup_intr failed\n", bfad->pci_name);
1495 bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
1496 return -1;
1497 }
1498
1499 init_completion(&bfad->comp);
1500 spin_lock_irqsave(&bfad->bfad_lock, flags);
1501 bfa_iocfc_init(&bfad->bfa);
1502 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1503
1504 /* Set up interrupt handler for each vectors */
1505 if ((bfad->bfad_flags & BFAD_MSIX_ON) &&
1506 bfad_install_msix_handler(bfad))
1507 dev_printk(KERN_WARNING, &pdev->dev,
1508 "%s: install_msix failed.\n", bfad->pci_name);
1509
1510 bfad_init_timer(bfad);
1511 wait_for_completion(&bfad->comp);
1512 bfad_drv_start(bfad);
1513
1514 return 0;
1515 }
1516
1517 /*
1518 * PCI Error Recovery entry, re-initialize the chip.
1519 */
1520 static pci_ers_result_t
bfad_pci_slot_reset(struct pci_dev * pdev)1521 bfad_pci_slot_reset(struct pci_dev *pdev)
1522 {
1523 struct bfad_s *bfad = pci_get_drvdata(pdev);
1524 u8 byte;
1525 int rc;
1526
1527 dev_printk(KERN_ERR, &pdev->dev,
1528 "bfad_pci_slot_reset flags: 0x%x\n", bfad->bfad_flags);
1529
1530 if (pci_enable_device(pdev)) {
1531 dev_printk(KERN_ERR, &pdev->dev, "Cannot re-enable "
1532 "PCI device after reset.\n");
1533 return PCI_ERS_RESULT_DISCONNECT;
1534 }
1535
1536 pci_restore_state(pdev);
1537
1538 /*
1539 * Read some byte (e.g. DMA max. payload size which can't
1540 * be 0xff any time) to make sure - we did not hit another PCI error
1541 * in the middle of recovery. If we did, then declare permanent failure.
1542 */
1543 pci_read_config_byte(pdev, 0x68, &byte);
1544 if (byte == 0xff) {
1545 dev_printk(KERN_ERR, &pdev->dev,
1546 "slot_reset failed ... got another PCI error !\n");
1547 goto out_disable_device;
1548 }
1549
1550 pci_save_state(pdev);
1551 pci_set_master(pdev);
1552
1553 rc = dma_set_mask_and_coherent(&bfad->pcidev->dev, DMA_BIT_MASK(64));
1554 if (rc)
1555 goto out_disable_device;
1556
1557 if (restart_bfa(bfad) == -1)
1558 goto out_disable_device;
1559
1560 dev_printk(KERN_WARNING, &pdev->dev,
1561 "slot_reset completed flags: 0x%x!\n", bfad->bfad_flags);
1562
1563 return PCI_ERS_RESULT_RECOVERED;
1564
1565 out_disable_device:
1566 pci_disable_device(pdev);
1567 return PCI_ERS_RESULT_DISCONNECT;
1568 }
1569
1570 static pci_ers_result_t
bfad_pci_mmio_enabled(struct pci_dev * pdev)1571 bfad_pci_mmio_enabled(struct pci_dev *pdev)
1572 {
1573 unsigned long flags;
1574 struct bfad_s *bfad = pci_get_drvdata(pdev);
1575
1576 dev_printk(KERN_INFO, &pdev->dev, "mmio_enabled\n");
1577
1578 /* Fetch FW diagnostic information */
1579 bfa_ioc_debug_save_ftrc(&bfad->bfa.ioc);
1580
1581 /* Cancel all pending IOs */
1582 spin_lock_irqsave(&bfad->bfad_lock, flags);
1583 init_completion(&bfad->comp);
1584 bfa_fcs_stop(&bfad->bfa_fcs);
1585 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1586 wait_for_completion(&bfad->comp);
1587
1588 bfad_remove_intr(bfad);
1589 del_timer_sync(&bfad->hal_tmo);
1590 pci_disable_device(pdev);
1591
1592 return PCI_ERS_RESULT_NEED_RESET;
1593 }
1594
1595 static void
bfad_pci_resume(struct pci_dev * pdev)1596 bfad_pci_resume(struct pci_dev *pdev)
1597 {
1598 unsigned long flags;
1599 struct bfad_s *bfad = pci_get_drvdata(pdev);
1600
1601 dev_printk(KERN_WARNING, &pdev->dev, "resume\n");
1602
1603 /* wait until the link is online */
1604 bfad_rport_online_wait(bfad);
1605
1606 spin_lock_irqsave(&bfad->bfad_lock, flags);
1607 bfad->bfad_flags &= ~BFAD_EEH_BUSY;
1608 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1609 }
1610
1611 struct pci_device_id bfad_id_table[] = {
1612 {
1613 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1614 .device = BFA_PCI_DEVICE_ID_FC_8G2P,
1615 .subvendor = PCI_ANY_ID,
1616 .subdevice = PCI_ANY_ID,
1617 },
1618 {
1619 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1620 .device = BFA_PCI_DEVICE_ID_FC_8G1P,
1621 .subvendor = PCI_ANY_ID,
1622 .subdevice = PCI_ANY_ID,
1623 },
1624 {
1625 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1626 .device = BFA_PCI_DEVICE_ID_CT,
1627 .subvendor = PCI_ANY_ID,
1628 .subdevice = PCI_ANY_ID,
1629 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1630 .class_mask = ~0,
1631 },
1632 {
1633 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1634 .device = BFA_PCI_DEVICE_ID_CT_FC,
1635 .subvendor = PCI_ANY_ID,
1636 .subdevice = PCI_ANY_ID,
1637 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1638 .class_mask = ~0,
1639 },
1640 {
1641 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1642 .device = BFA_PCI_DEVICE_ID_CT2,
1643 .subvendor = PCI_ANY_ID,
1644 .subdevice = PCI_ANY_ID,
1645 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1646 .class_mask = ~0,
1647 },
1648
1649 {
1650 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1651 .device = BFA_PCI_DEVICE_ID_CT2_QUAD,
1652 .subvendor = PCI_ANY_ID,
1653 .subdevice = PCI_ANY_ID,
1654 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1655 .class_mask = ~0,
1656 },
1657 {0, 0},
1658 };
1659
1660 MODULE_DEVICE_TABLE(pci, bfad_id_table);
1661
1662 /*
1663 * PCI error recovery handlers.
1664 */
1665 static struct pci_error_handlers bfad_err_handler = {
1666 .error_detected = bfad_pci_error_detected,
1667 .slot_reset = bfad_pci_slot_reset,
1668 .mmio_enabled = bfad_pci_mmio_enabled,
1669 .resume = bfad_pci_resume,
1670 };
1671
1672 static struct pci_driver bfad_pci_driver = {
1673 .name = BFAD_DRIVER_NAME,
1674 .id_table = bfad_id_table,
1675 .probe = bfad_pci_probe,
1676 .remove = bfad_pci_remove,
1677 .err_handler = &bfad_err_handler,
1678 };
1679
1680 /*
1681 * Driver module init.
1682 */
1683 static int __init
bfad_init(void)1684 bfad_init(void)
1685 {
1686 int error = 0;
1687
1688 pr_info("QLogic BR-series BFA FC/FCOE SCSI driver - version: %s\n",
1689 BFAD_DRIVER_VERSION);
1690
1691 if (num_sgpgs > 0)
1692 num_sgpgs_parm = num_sgpgs;
1693
1694 error = bfad_im_module_init();
1695 if (error) {
1696 error = -ENOMEM;
1697 printk(KERN_WARNING "bfad_im_module_init failure\n");
1698 goto ext;
1699 }
1700
1701 if (strcmp(FCPI_NAME, " fcpim") == 0)
1702 supported_fc4s |= BFA_LPORT_ROLE_FCP_IM;
1703
1704 bfa_auto_recover = ioc_auto_recover;
1705 bfa_fcs_rport_set_del_timeout(rport_del_timeout);
1706 bfa_fcs_rport_set_max_logins(max_rport_logins);
1707
1708 error = pci_register_driver(&bfad_pci_driver);
1709 if (error) {
1710 printk(KERN_WARNING "pci_register_driver failure\n");
1711 goto ext;
1712 }
1713
1714 return 0;
1715
1716 ext:
1717 bfad_im_module_exit();
1718 return error;
1719 }
1720
1721 /*
1722 * Driver module exit.
1723 */
1724 static void __exit
bfad_exit(void)1725 bfad_exit(void)
1726 {
1727 pci_unregister_driver(&bfad_pci_driver);
1728 bfad_im_module_exit();
1729 bfad_free_fwimg();
1730 }
1731
1732 /* Firmware handling */
1733 static void
bfad_read_firmware(struct pci_dev * pdev,u32 ** bfi_image,u32 * bfi_image_size,char * fw_name)1734 bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
1735 u32 *bfi_image_size, char *fw_name)
1736 {
1737 const struct firmware *fw;
1738
1739 if (request_firmware(&fw, fw_name, &pdev->dev)) {
1740 printk(KERN_ALERT "Can't locate firmware %s\n", fw_name);
1741 *bfi_image = NULL;
1742 goto out;
1743 }
1744
1745 *bfi_image = vmalloc(fw->size);
1746 if (NULL == *bfi_image) {
1747 printk(KERN_ALERT "Fail to allocate buffer for fw image "
1748 "size=%x!\n", (u32) fw->size);
1749 goto out;
1750 }
1751
1752 memcpy(*bfi_image, fw->data, fw->size);
1753 *bfi_image_size = fw->size/sizeof(u32);
1754 out:
1755 release_firmware(fw);
1756 }
1757
1758 static u32 *
bfad_load_fwimg(struct pci_dev * pdev)1759 bfad_load_fwimg(struct pci_dev *pdev)
1760 {
1761 if (bfa_asic_id_ct2(pdev->device)) {
1762 if (bfi_image_ct2_size == 0)
1763 bfad_read_firmware(pdev, &bfi_image_ct2,
1764 &bfi_image_ct2_size, BFAD_FW_FILE_CT2);
1765 return bfi_image_ct2;
1766 } else if (bfa_asic_id_ct(pdev->device)) {
1767 if (bfi_image_ct_size == 0)
1768 bfad_read_firmware(pdev, &bfi_image_ct,
1769 &bfi_image_ct_size, BFAD_FW_FILE_CT);
1770 return bfi_image_ct;
1771 } else if (bfa_asic_id_cb(pdev->device)) {
1772 if (bfi_image_cb_size == 0)
1773 bfad_read_firmware(pdev, &bfi_image_cb,
1774 &bfi_image_cb_size, BFAD_FW_FILE_CB);
1775 return bfi_image_cb;
1776 }
1777
1778 return NULL;
1779 }
1780
1781 static void
bfad_free_fwimg(void)1782 bfad_free_fwimg(void)
1783 {
1784 if (bfi_image_ct2_size && bfi_image_ct2)
1785 vfree(bfi_image_ct2);
1786 if (bfi_image_ct_size && bfi_image_ct)
1787 vfree(bfi_image_ct);
1788 if (bfi_image_cb_size && bfi_image_cb)
1789 vfree(bfi_image_cb);
1790 }
1791
1792 module_init(bfad_init);
1793 module_exit(bfad_exit);
1794 MODULE_LICENSE("GPL");
1795 MODULE_DESCRIPTION("QLogic BR-series Fibre Channel HBA Driver" BFAD_PROTO_NAME);
1796 MODULE_AUTHOR("QLogic Corporation");
1797 MODULE_VERSION(BFAD_DRIVER_VERSION);
1798