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 /* Enable PCIE Advanced Error Recovery (AER) if kernel supports */
742 pci_enable_pcie_error_reporting(pdev);
743
744 bfad->pci_bar0_kva = pci_iomap(pdev, 0, pci_resource_len(pdev, 0));
745 bfad->pci_bar2_kva = pci_iomap(pdev, 2, pci_resource_len(pdev, 2));
746
747 if (bfad->pci_bar0_kva == NULL) {
748 printk(KERN_ERR "Fail to map bar0\n");
749 rc = -ENODEV;
750 goto out_release_region;
751 }
752
753 bfad->hal_pcidev.pci_slot = PCI_SLOT(pdev->devfn);
754 bfad->hal_pcidev.pci_func = PCI_FUNC(pdev->devfn);
755 bfad->hal_pcidev.pci_bar_kva = bfad->pci_bar0_kva;
756 bfad->hal_pcidev.device_id = pdev->device;
757 bfad->hal_pcidev.ssid = pdev->subsystem_device;
758 bfad->pci_name = pci_name(pdev);
759
760 bfad->pci_attr.vendor_id = pdev->vendor;
761 bfad->pci_attr.device_id = pdev->device;
762 bfad->pci_attr.ssid = pdev->subsystem_device;
763 bfad->pci_attr.ssvid = pdev->subsystem_vendor;
764 bfad->pci_attr.pcifn = PCI_FUNC(pdev->devfn);
765
766 bfad->pcidev = pdev;
767
768 /* Adjust PCIe Maximum Read Request Size */
769 if (pci_is_pcie(pdev) && pcie_max_read_reqsz) {
770 if (pcie_max_read_reqsz >= 128 &&
771 pcie_max_read_reqsz <= 4096 &&
772 is_power_of_2(pcie_max_read_reqsz)) {
773 int max_rq = pcie_get_readrq(pdev);
774 printk(KERN_WARNING "BFA[%s]: "
775 "pcie_max_read_request_size is %d, "
776 "reset to %d\n", bfad->pci_name, max_rq,
777 pcie_max_read_reqsz);
778 pcie_set_readrq(pdev, pcie_max_read_reqsz);
779 } else {
780 printk(KERN_WARNING "BFA[%s]: invalid "
781 "pcie_max_read_request_size %d ignored\n",
782 bfad->pci_name, pcie_max_read_reqsz);
783 }
784 }
785
786 pci_save_state(pdev);
787
788 return 0;
789
790 out_release_region:
791 pci_release_regions(pdev);
792 out_disable_device:
793 pci_disable_device(pdev);
794 out:
795 return rc;
796 }
797
798 void
bfad_pci_uninit(struct pci_dev * pdev,struct bfad_s * bfad)799 bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad)
800 {
801 pci_iounmap(pdev, bfad->pci_bar0_kva);
802 pci_iounmap(pdev, bfad->pci_bar2_kva);
803 pci_release_regions(pdev);
804 /* Disable PCIE Advanced Error Recovery (AER) */
805 pci_disable_pcie_error_reporting(pdev);
806 pci_disable_device(pdev);
807 }
808
809 bfa_status_t
bfad_drv_init(struct bfad_s * bfad)810 bfad_drv_init(struct bfad_s *bfad)
811 {
812 bfa_status_t rc;
813 unsigned long flags;
814
815 bfad->cfg_data.rport_del_timeout = rport_del_timeout;
816 bfad->cfg_data.lun_queue_depth = bfa_lun_queue_depth;
817 bfad->cfg_data.io_max_sge = bfa_io_max_sge;
818 bfad->cfg_data.binding_method = FCP_PWWN_BINDING;
819
820 rc = bfad_hal_mem_alloc(bfad);
821 if (rc != BFA_STATUS_OK) {
822 printk(KERN_WARNING "bfad%d bfad_hal_mem_alloc failure\n",
823 bfad->inst_no);
824 printk(KERN_WARNING
825 "Not enough memory to attach all QLogic BR-series HBA ports. System may need more memory.\n");
826 return BFA_STATUS_FAILED;
827 }
828
829 bfad->bfa.trcmod = bfad->trcmod;
830 bfad->bfa.plog = &bfad->plog_buf;
831 bfa_plog_init(&bfad->plog_buf);
832 bfa_plog_str(&bfad->plog_buf, BFA_PL_MID_DRVR, BFA_PL_EID_DRIVER_START,
833 0, "Driver Attach");
834
835 bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg, &bfad->meminfo,
836 &bfad->hal_pcidev);
837
838 /* FCS INIT */
839 spin_lock_irqsave(&bfad->bfad_lock, flags);
840 bfad->bfa_fcs.trcmod = bfad->trcmod;
841 bfa_fcs_attach(&bfad->bfa_fcs, &bfad->bfa, bfad, BFA_FALSE);
842 bfad->bfa_fcs.fdmi_enabled = fdmi_enable;
843 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
844
845 bfad->bfad_flags |= BFAD_DRV_INIT_DONE;
846
847 return BFA_STATUS_OK;
848 }
849
850 void
bfad_drv_uninit(struct bfad_s * bfad)851 bfad_drv_uninit(struct bfad_s *bfad)
852 {
853 unsigned long flags;
854
855 spin_lock_irqsave(&bfad->bfad_lock, flags);
856 init_completion(&bfad->comp);
857 bfa_iocfc_stop(&bfad->bfa);
858 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
859 wait_for_completion(&bfad->comp);
860
861 del_timer_sync(&bfad->hal_tmo);
862 bfa_isr_disable(&bfad->bfa);
863 bfa_detach(&bfad->bfa);
864 bfad_remove_intr(bfad);
865 bfad_hal_mem_release(bfad);
866
867 bfad->bfad_flags &= ~BFAD_DRV_INIT_DONE;
868 }
869
870 void
bfad_drv_start(struct bfad_s * bfad)871 bfad_drv_start(struct bfad_s *bfad)
872 {
873 unsigned long flags;
874
875 spin_lock_irqsave(&bfad->bfad_lock, flags);
876 bfa_iocfc_start(&bfad->bfa);
877 bfa_fcs_pbc_vport_init(&bfad->bfa_fcs);
878 bfa_fcs_fabric_modstart(&bfad->bfa_fcs);
879 bfad->bfad_flags |= BFAD_HAL_START_DONE;
880 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
881
882 if (bfad->im)
883 flush_workqueue(bfad->im->drv_workq);
884 }
885
886 void
bfad_fcs_stop(struct bfad_s * bfad)887 bfad_fcs_stop(struct bfad_s *bfad)
888 {
889 unsigned long flags;
890
891 spin_lock_irqsave(&bfad->bfad_lock, flags);
892 init_completion(&bfad->comp);
893 bfad->pport.flags |= BFAD_PORT_DELETE;
894 bfa_fcs_exit(&bfad->bfa_fcs);
895 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
896 wait_for_completion(&bfad->comp);
897
898 bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP);
899 }
900
901 void
bfad_stop(struct bfad_s * bfad)902 bfad_stop(struct bfad_s *bfad)
903 {
904 unsigned long flags;
905
906 spin_lock_irqsave(&bfad->bfad_lock, flags);
907 init_completion(&bfad->comp);
908 bfa_iocfc_stop(&bfad->bfa);
909 bfad->bfad_flags &= ~BFAD_HAL_START_DONE;
910 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
911 wait_for_completion(&bfad->comp);
912
913 bfa_sm_send_event(bfad, BFAD_E_EXIT_COMP);
914 }
915
916 bfa_status_t
bfad_cfg_pport(struct bfad_s * bfad,enum bfa_lport_role role)917 bfad_cfg_pport(struct bfad_s *bfad, enum bfa_lport_role role)
918 {
919 int rc = BFA_STATUS_OK;
920
921 /* Allocate scsi_host for the physical port */
922 if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) &&
923 (role & BFA_LPORT_ROLE_FCP_IM)) {
924 if (bfad->pport.im_port == NULL) {
925 rc = BFA_STATUS_FAILED;
926 goto out;
927 }
928
929 rc = bfad_im_scsi_host_alloc(bfad, bfad->pport.im_port,
930 &bfad->pcidev->dev);
931 if (rc != BFA_STATUS_OK)
932 goto out;
933
934 bfad->pport.roles |= BFA_LPORT_ROLE_FCP_IM;
935 }
936
937 bfad->bfad_flags |= BFAD_CFG_PPORT_DONE;
938
939 out:
940 return rc;
941 }
942
943 void
bfad_uncfg_pport(struct bfad_s * bfad)944 bfad_uncfg_pport(struct bfad_s *bfad)
945 {
946 if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) &&
947 (bfad->pport.roles & BFA_LPORT_ROLE_FCP_IM)) {
948 bfad_im_scsi_host_free(bfad, bfad->pport.im_port);
949 bfad_im_port_clean(bfad->pport.im_port);
950 kfree(bfad->pport.im_port);
951 bfad->pport.roles &= ~BFA_LPORT_ROLE_FCP_IM;
952 }
953
954 bfad->bfad_flags &= ~BFAD_CFG_PPORT_DONE;
955 }
956
957 bfa_status_t
bfad_start_ops(struct bfad_s * bfad)958 bfad_start_ops(struct bfad_s *bfad) {
959
960 int retval;
961 unsigned long flags;
962 struct bfad_vport_s *vport, *vport_new;
963 struct bfa_fcs_driver_info_s driver_info;
964
965 /* Limit min/max. xfer size to [64k-32MB] */
966 if (max_xfer_size < BFAD_MIN_SECTORS >> 1)
967 max_xfer_size = BFAD_MIN_SECTORS >> 1;
968 if (max_xfer_size > BFAD_MAX_SECTORS >> 1)
969 max_xfer_size = BFAD_MAX_SECTORS >> 1;
970
971 /* Fill the driver_info info to fcs*/
972 memset(&driver_info, 0, sizeof(driver_info));
973 strlcpy(driver_info.version, BFAD_DRIVER_VERSION,
974 sizeof(driver_info.version));
975 if (host_name)
976 strlcpy(driver_info.host_machine_name, host_name,
977 sizeof(driver_info.host_machine_name));
978 if (os_name)
979 strlcpy(driver_info.host_os_name, os_name,
980 sizeof(driver_info.host_os_name));
981 if (os_patch)
982 strlcpy(driver_info.host_os_patch, os_patch,
983 sizeof(driver_info.host_os_patch));
984
985 strlcpy(driver_info.os_device_name, bfad->pci_name,
986 sizeof(driver_info.os_device_name));
987
988 /* FCS driver info init */
989 spin_lock_irqsave(&bfad->bfad_lock, flags);
990 bfa_fcs_driver_info_init(&bfad->bfa_fcs, &driver_info);
991
992 if (bfad->bfad_flags & BFAD_CFG_PPORT_DONE)
993 bfa_fcs_update_cfg(&bfad->bfa_fcs);
994 else
995 bfa_fcs_init(&bfad->bfa_fcs);
996
997 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
998
999 if (!(bfad->bfad_flags & BFAD_CFG_PPORT_DONE)) {
1000 retval = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM);
1001 if (retval != BFA_STATUS_OK)
1002 return BFA_STATUS_FAILED;
1003 }
1004
1005 /* Setup fc host fixed attribute if the lk supports */
1006 bfad_fc_host_init(bfad->pport.im_port);
1007
1008 /* BFAD level FC4 IM specific resource allocation */
1009 retval = bfad_im_probe(bfad);
1010 if (retval != BFA_STATUS_OK) {
1011 printk(KERN_WARNING "bfad_im_probe failed\n");
1012 if (bfa_sm_cmp_state(bfad, bfad_sm_initializing))
1013 bfa_sm_set_state(bfad, bfad_sm_failed);
1014 return BFA_STATUS_FAILED;
1015 } else
1016 bfad->bfad_flags |= BFAD_FC4_PROBE_DONE;
1017
1018 bfad_drv_start(bfad);
1019
1020 /* Complete pbc vport create */
1021 list_for_each_entry_safe(vport, vport_new, &bfad->pbc_vport_list,
1022 list_entry) {
1023 struct fc_vport_identifiers vid;
1024 struct fc_vport *fc_vport;
1025 char pwwn_buf[BFA_STRING_32];
1026
1027 memset(&vid, 0, sizeof(vid));
1028 vid.roles = FC_PORT_ROLE_FCP_INITIATOR;
1029 vid.vport_type = FC_PORTTYPE_NPIV;
1030 vid.disable = false;
1031 vid.node_name = wwn_to_u64((u8 *)
1032 (&((vport->fcs_vport).lport.port_cfg.nwwn)));
1033 vid.port_name = wwn_to_u64((u8 *)
1034 (&((vport->fcs_vport).lport.port_cfg.pwwn)));
1035 fc_vport = fc_vport_create(bfad->pport.im_port->shost, 0, &vid);
1036 if (!fc_vport) {
1037 wwn2str(pwwn_buf, vid.port_name);
1038 printk(KERN_WARNING "bfad%d: failed to create pbc vport"
1039 " %s\n", bfad->inst_no, pwwn_buf);
1040 }
1041 list_del(&vport->list_entry);
1042 kfree(vport);
1043 }
1044
1045 /*
1046 * If bfa_linkup_delay is set to -1 default; try to retrive the
1047 * value using the bfad_get_linkup_delay(); else use the
1048 * passed in module param value as the bfa_linkup_delay.
1049 */
1050 if (bfa_linkup_delay < 0) {
1051 bfa_linkup_delay = bfad_get_linkup_delay(bfad);
1052 bfad_rport_online_wait(bfad);
1053 bfa_linkup_delay = -1;
1054 } else
1055 bfad_rport_online_wait(bfad);
1056
1057 BFA_LOG(KERN_INFO, bfad, bfa_log_level, "bfa device claimed\n");
1058
1059 return BFA_STATUS_OK;
1060 }
1061
1062 int
bfad_worker(void * ptr)1063 bfad_worker(void *ptr)
1064 {
1065 struct bfad_s *bfad = ptr;
1066 unsigned long flags;
1067
1068 if (kthread_should_stop())
1069 return 0;
1070
1071 /* Send event BFAD_E_INIT_SUCCESS */
1072 bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS);
1073
1074 spin_lock_irqsave(&bfad->bfad_lock, flags);
1075 bfad->bfad_tsk = NULL;
1076 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1077
1078 return 0;
1079 }
1080
1081 /*
1082 * BFA driver interrupt functions
1083 */
1084 irqreturn_t
bfad_intx(int irq,void * dev_id)1085 bfad_intx(int irq, void *dev_id)
1086 {
1087 struct bfad_s *bfad = dev_id;
1088 struct list_head doneq;
1089 unsigned long flags;
1090 bfa_boolean_t rc;
1091
1092 spin_lock_irqsave(&bfad->bfad_lock, flags);
1093 rc = bfa_intx(&bfad->bfa);
1094 if (!rc) {
1095 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1096 return IRQ_NONE;
1097 }
1098
1099 bfa_comp_deq(&bfad->bfa, &doneq);
1100 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1101
1102 if (!list_empty(&doneq)) {
1103 bfa_comp_process(&bfad->bfa, &doneq);
1104
1105 spin_lock_irqsave(&bfad->bfad_lock, flags);
1106 bfa_comp_free(&bfad->bfa, &doneq);
1107 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1108 }
1109
1110 return IRQ_HANDLED;
1111
1112 }
1113
1114 static irqreturn_t
bfad_msix(int irq,void * dev_id)1115 bfad_msix(int irq, void *dev_id)
1116 {
1117 struct bfad_msix_s *vec = dev_id;
1118 struct bfad_s *bfad = vec->bfad;
1119 struct list_head doneq;
1120 unsigned long flags;
1121
1122 spin_lock_irqsave(&bfad->bfad_lock, flags);
1123
1124 bfa_msix(&bfad->bfa, vec->msix.entry);
1125 bfa_comp_deq(&bfad->bfa, &doneq);
1126 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1127
1128 if (!list_empty(&doneq)) {
1129 bfa_comp_process(&bfad->bfa, &doneq);
1130
1131 spin_lock_irqsave(&bfad->bfad_lock, flags);
1132 bfa_comp_free(&bfad->bfa, &doneq);
1133 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1134 }
1135
1136 return IRQ_HANDLED;
1137 }
1138
1139 /*
1140 * Initialize the MSIX entry table.
1141 */
1142 static void
bfad_init_msix_entry(struct bfad_s * bfad,struct msix_entry * msix_entries,int mask,int max_bit)1143 bfad_init_msix_entry(struct bfad_s *bfad, struct msix_entry *msix_entries,
1144 int mask, int max_bit)
1145 {
1146 int i;
1147 int match = 0x00000001;
1148
1149 for (i = 0, bfad->nvec = 0; i < MAX_MSIX_ENTRY; i++) {
1150 if (mask & match) {
1151 bfad->msix_tab[bfad->nvec].msix.entry = i;
1152 bfad->msix_tab[bfad->nvec].bfad = bfad;
1153 msix_entries[bfad->nvec].entry = i;
1154 bfad->nvec++;
1155 }
1156
1157 match <<= 1;
1158 }
1159
1160 }
1161
1162 int
bfad_install_msix_handler(struct bfad_s * bfad)1163 bfad_install_msix_handler(struct bfad_s *bfad)
1164 {
1165 int i, error = 0;
1166
1167 for (i = 0; i < bfad->nvec; i++) {
1168 sprintf(bfad->msix_tab[i].name, "bfa-%s-%s",
1169 bfad->pci_name,
1170 ((bfa_asic_id_cb(bfad->hal_pcidev.device_id)) ?
1171 msix_name_cb[i] : msix_name_ct[i]));
1172
1173 error = request_irq(bfad->msix_tab[i].msix.vector,
1174 (irq_handler_t) bfad_msix, 0,
1175 bfad->msix_tab[i].name, &bfad->msix_tab[i]);
1176 bfa_trc(bfad, i);
1177 bfa_trc(bfad, bfad->msix_tab[i].msix.vector);
1178 if (error) {
1179 int j;
1180
1181 for (j = 0; j < i; j++)
1182 free_irq(bfad->msix_tab[j].msix.vector,
1183 &bfad->msix_tab[j]);
1184
1185 bfad->bfad_flags &= ~BFAD_MSIX_ON;
1186 pci_disable_msix(bfad->pcidev);
1187
1188 return 1;
1189 }
1190 }
1191
1192 return 0;
1193 }
1194
1195 /*
1196 * Setup MSIX based interrupt.
1197 */
1198 int
bfad_setup_intr(struct bfad_s * bfad)1199 bfad_setup_intr(struct bfad_s *bfad)
1200 {
1201 int error;
1202 u32 mask = 0, i, num_bit = 0, max_bit = 0;
1203 struct msix_entry msix_entries[MAX_MSIX_ENTRY];
1204 struct pci_dev *pdev = bfad->pcidev;
1205 u16 reg;
1206
1207 /* Call BFA to get the msix map for this PCI function. */
1208 bfa_msix_getvecs(&bfad->bfa, &mask, &num_bit, &max_bit);
1209
1210 /* Set up the msix entry table */
1211 bfad_init_msix_entry(bfad, msix_entries, mask, max_bit);
1212
1213 if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
1214 (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {
1215
1216 error = pci_enable_msix_exact(bfad->pcidev,
1217 msix_entries, bfad->nvec);
1218 /* In CT1 & CT2, try to allocate just one vector */
1219 if (error == -ENOSPC && bfa_asic_id_ctc(pdev->device)) {
1220 printk(KERN_WARNING "bfa %s: trying one msix "
1221 "vector failed to allocate %d[%d]\n",
1222 bfad->pci_name, bfad->nvec, error);
1223 bfad->nvec = 1;
1224 error = pci_enable_msix_exact(bfad->pcidev,
1225 msix_entries, 1);
1226 }
1227
1228 if (error) {
1229 printk(KERN_WARNING "bfad%d: "
1230 "pci_enable_msix_exact failed (%d), "
1231 "use line based.\n",
1232 bfad->inst_no, error);
1233 goto line_based;
1234 }
1235
1236 /* Disable INTX in MSI-X mode */
1237 pci_read_config_word(pdev, PCI_COMMAND, ®);
1238
1239 if (!(reg & PCI_COMMAND_INTX_DISABLE))
1240 pci_write_config_word(pdev, PCI_COMMAND,
1241 reg | PCI_COMMAND_INTX_DISABLE);
1242
1243 /* Save the vectors */
1244 for (i = 0; i < bfad->nvec; i++) {
1245 bfa_trc(bfad, msix_entries[i].vector);
1246 bfad->msix_tab[i].msix.vector = msix_entries[i].vector;
1247 }
1248
1249 bfa_msix_init(&bfad->bfa, bfad->nvec);
1250
1251 bfad->bfad_flags |= BFAD_MSIX_ON;
1252
1253 return 0;
1254 }
1255
1256 line_based:
1257 error = request_irq(bfad->pcidev->irq, (irq_handler_t)bfad_intx,
1258 BFAD_IRQ_FLAGS, BFAD_DRIVER_NAME, bfad);
1259 if (error)
1260 return error;
1261
1262 bfad->bfad_flags |= BFAD_INTX_ON;
1263
1264 return 0;
1265 }
1266
1267 void
bfad_remove_intr(struct bfad_s * bfad)1268 bfad_remove_intr(struct bfad_s *bfad)
1269 {
1270 int i;
1271
1272 if (bfad->bfad_flags & BFAD_MSIX_ON) {
1273 for (i = 0; i < bfad->nvec; i++)
1274 free_irq(bfad->msix_tab[i].msix.vector,
1275 &bfad->msix_tab[i]);
1276
1277 pci_disable_msix(bfad->pcidev);
1278 bfad->bfad_flags &= ~BFAD_MSIX_ON;
1279 } else if (bfad->bfad_flags & BFAD_INTX_ON) {
1280 free_irq(bfad->pcidev->irq, bfad);
1281 }
1282 }
1283
1284 /*
1285 * PCI probe entry.
1286 */
1287 int
bfad_pci_probe(struct pci_dev * pdev,const struct pci_device_id * pid)1288 bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid)
1289 {
1290 struct bfad_s *bfad;
1291 int error = -ENODEV, retval, i;
1292
1293 /* For single port cards - only claim function 0 */
1294 if ((pdev->device == BFA_PCI_DEVICE_ID_FC_8G1P) &&
1295 (PCI_FUNC(pdev->devfn) != 0))
1296 return -ENODEV;
1297
1298 bfad = kzalloc(sizeof(struct bfad_s), GFP_KERNEL);
1299 if (!bfad) {
1300 error = -ENOMEM;
1301 goto out;
1302 }
1303
1304 bfad->trcmod = kzalloc(sizeof(struct bfa_trc_mod_s), GFP_KERNEL);
1305 if (!bfad->trcmod) {
1306 printk(KERN_WARNING "Error alloc trace buffer!\n");
1307 error = -ENOMEM;
1308 goto out_alloc_trace_failure;
1309 }
1310
1311 /* TRACE INIT */
1312 bfa_trc_init(bfad->trcmod);
1313 bfa_trc(bfad, bfad_inst);
1314
1315 /* AEN INIT */
1316 INIT_LIST_HEAD(&bfad->free_aen_q);
1317 INIT_LIST_HEAD(&bfad->active_aen_q);
1318 for (i = 0; i < BFA_AEN_MAX_ENTRY; i++)
1319 list_add_tail(&bfad->aen_list[i].qe, &bfad->free_aen_q);
1320
1321 if (!(bfad_load_fwimg(pdev))) {
1322 kfree(bfad->trcmod);
1323 goto out_alloc_trace_failure;
1324 }
1325
1326 retval = bfad_pci_init(pdev, bfad);
1327 if (retval) {
1328 printk(KERN_WARNING "bfad_pci_init failure!\n");
1329 error = retval;
1330 goto out_pci_init_failure;
1331 }
1332
1333 mutex_lock(&bfad_mutex);
1334 bfad->inst_no = bfad_inst++;
1335 list_add_tail(&bfad->list_entry, &bfad_list);
1336 mutex_unlock(&bfad_mutex);
1337
1338 /* Initializing the state machine: State set to uninit */
1339 bfa_sm_set_state(bfad, bfad_sm_uninit);
1340
1341 spin_lock_init(&bfad->bfad_lock);
1342 spin_lock_init(&bfad->bfad_aen_spinlock);
1343
1344 pci_set_drvdata(pdev, bfad);
1345
1346 bfad->ref_count = 0;
1347 bfad->pport.bfad = bfad;
1348 INIT_LIST_HEAD(&bfad->pbc_vport_list);
1349 INIT_LIST_HEAD(&bfad->vport_list);
1350
1351 /* Setup the debugfs node for this bfad */
1352 if (bfa_debugfs_enable)
1353 bfad_debugfs_init(&bfad->pport);
1354
1355 retval = bfad_drv_init(bfad);
1356 if (retval != BFA_STATUS_OK)
1357 goto out_drv_init_failure;
1358
1359 bfa_sm_send_event(bfad, BFAD_E_CREATE);
1360
1361 if (bfa_sm_cmp_state(bfad, bfad_sm_uninit))
1362 goto out_bfad_sm_failure;
1363
1364 return 0;
1365
1366 out_bfad_sm_failure:
1367 bfad_hal_mem_release(bfad);
1368 out_drv_init_failure:
1369 /* Remove the debugfs node for this bfad */
1370 kfree(bfad->regdata);
1371 bfad_debugfs_exit(&bfad->pport);
1372 mutex_lock(&bfad_mutex);
1373 bfad_inst--;
1374 list_del(&bfad->list_entry);
1375 mutex_unlock(&bfad_mutex);
1376 bfad_pci_uninit(pdev, bfad);
1377 out_pci_init_failure:
1378 kfree(bfad->trcmod);
1379 out_alloc_trace_failure:
1380 kfree(bfad);
1381 out:
1382 return error;
1383 }
1384
1385 /*
1386 * PCI remove entry.
1387 */
1388 void
bfad_pci_remove(struct pci_dev * pdev)1389 bfad_pci_remove(struct pci_dev *pdev)
1390 {
1391 struct bfad_s *bfad = pci_get_drvdata(pdev);
1392 unsigned long flags;
1393
1394 bfa_trc(bfad, bfad->inst_no);
1395
1396 spin_lock_irqsave(&bfad->bfad_lock, flags);
1397 if (bfad->bfad_tsk != NULL) {
1398 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1399 kthread_stop(bfad->bfad_tsk);
1400 } else {
1401 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1402 }
1403
1404 /* Send Event BFAD_E_STOP */
1405 bfa_sm_send_event(bfad, BFAD_E_STOP);
1406
1407 /* Driver detach and dealloc mem */
1408 spin_lock_irqsave(&bfad->bfad_lock, flags);
1409 bfa_detach(&bfad->bfa);
1410 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1411 bfad_hal_mem_release(bfad);
1412
1413 /* Remove the debugfs node for this bfad */
1414 kfree(bfad->regdata);
1415 bfad_debugfs_exit(&bfad->pport);
1416
1417 /* Cleaning the BFAD instance */
1418 mutex_lock(&bfad_mutex);
1419 bfad_inst--;
1420 list_del(&bfad->list_entry);
1421 mutex_unlock(&bfad_mutex);
1422 bfad_pci_uninit(pdev, bfad);
1423
1424 kfree(bfad->trcmod);
1425 kfree(bfad);
1426 }
1427
1428 /*
1429 * PCI Error Recovery entry, error detected.
1430 */
1431 static pci_ers_result_t
bfad_pci_error_detected(struct pci_dev * pdev,pci_channel_state_t state)1432 bfad_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
1433 {
1434 struct bfad_s *bfad = pci_get_drvdata(pdev);
1435 unsigned long flags;
1436 pci_ers_result_t ret = PCI_ERS_RESULT_NONE;
1437
1438 dev_printk(KERN_ERR, &pdev->dev,
1439 "error detected state: %d - flags: 0x%x\n",
1440 state, bfad->bfad_flags);
1441
1442 switch (state) {
1443 case pci_channel_io_normal: /* non-fatal error */
1444 spin_lock_irqsave(&bfad->bfad_lock, flags);
1445 bfad->bfad_flags &= ~BFAD_EEH_BUSY;
1446 /* Suspend/fail all bfa operations */
1447 bfa_ioc_suspend(&bfad->bfa.ioc);
1448 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1449 del_timer_sync(&bfad->hal_tmo);
1450 ret = PCI_ERS_RESULT_CAN_RECOVER;
1451 break;
1452 case pci_channel_io_frozen: /* fatal error */
1453 init_completion(&bfad->comp);
1454 spin_lock_irqsave(&bfad->bfad_lock, flags);
1455 bfad->bfad_flags |= BFAD_EEH_BUSY;
1456 /* Suspend/fail all bfa operations */
1457 bfa_ioc_suspend(&bfad->bfa.ioc);
1458 bfa_fcs_stop(&bfad->bfa_fcs);
1459 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1460 wait_for_completion(&bfad->comp);
1461
1462 bfad_remove_intr(bfad);
1463 del_timer_sync(&bfad->hal_tmo);
1464 pci_disable_device(pdev);
1465 ret = PCI_ERS_RESULT_NEED_RESET;
1466 break;
1467 case pci_channel_io_perm_failure: /* PCI Card is DEAD */
1468 spin_lock_irqsave(&bfad->bfad_lock, flags);
1469 bfad->bfad_flags |= BFAD_EEH_BUSY |
1470 BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE;
1471 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1472
1473 /* If the error_detected handler is called with the reason
1474 * pci_channel_io_perm_failure - it will subsequently call
1475 * pci_remove() entry point to remove the pci device from the
1476 * system - So defer the cleanup to pci_remove(); cleaning up
1477 * here causes inconsistent state during pci_remove().
1478 */
1479 ret = PCI_ERS_RESULT_DISCONNECT;
1480 break;
1481 default:
1482 WARN_ON(1);
1483 }
1484
1485 return ret;
1486 }
1487
restart_bfa(struct bfad_s * bfad)1488 static int restart_bfa(struct bfad_s *bfad)
1489 {
1490 unsigned long flags;
1491 struct pci_dev *pdev = bfad->pcidev;
1492
1493 bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg,
1494 &bfad->meminfo, &bfad->hal_pcidev);
1495
1496 /* Enable Interrupt and wait bfa_init completion */
1497 if (bfad_setup_intr(bfad)) {
1498 dev_printk(KERN_WARNING, &pdev->dev,
1499 "%s: bfad_setup_intr failed\n", bfad->pci_name);
1500 bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
1501 return -1;
1502 }
1503
1504 init_completion(&bfad->comp);
1505 spin_lock_irqsave(&bfad->bfad_lock, flags);
1506 bfa_iocfc_init(&bfad->bfa);
1507 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1508
1509 /* Set up interrupt handler for each vectors */
1510 if ((bfad->bfad_flags & BFAD_MSIX_ON) &&
1511 bfad_install_msix_handler(bfad))
1512 dev_printk(KERN_WARNING, &pdev->dev,
1513 "%s: install_msix failed.\n", bfad->pci_name);
1514
1515 bfad_init_timer(bfad);
1516 wait_for_completion(&bfad->comp);
1517 bfad_drv_start(bfad);
1518
1519 return 0;
1520 }
1521
1522 /*
1523 * PCI Error Recovery entry, re-initialize the chip.
1524 */
1525 static pci_ers_result_t
bfad_pci_slot_reset(struct pci_dev * pdev)1526 bfad_pci_slot_reset(struct pci_dev *pdev)
1527 {
1528 struct bfad_s *bfad = pci_get_drvdata(pdev);
1529 u8 byte;
1530 int rc;
1531
1532 dev_printk(KERN_ERR, &pdev->dev,
1533 "bfad_pci_slot_reset flags: 0x%x\n", bfad->bfad_flags);
1534
1535 if (pci_enable_device(pdev)) {
1536 dev_printk(KERN_ERR, &pdev->dev, "Cannot re-enable "
1537 "PCI device after reset.\n");
1538 return PCI_ERS_RESULT_DISCONNECT;
1539 }
1540
1541 pci_restore_state(pdev);
1542
1543 /*
1544 * Read some byte (e.g. DMA max. payload size which can't
1545 * be 0xff any time) to make sure - we did not hit another PCI error
1546 * in the middle of recovery. If we did, then declare permanent failure.
1547 */
1548 pci_read_config_byte(pdev, 0x68, &byte);
1549 if (byte == 0xff) {
1550 dev_printk(KERN_ERR, &pdev->dev,
1551 "slot_reset failed ... got another PCI error !\n");
1552 goto out_disable_device;
1553 }
1554
1555 pci_save_state(pdev);
1556 pci_set_master(pdev);
1557
1558 rc = dma_set_mask_and_coherent(&bfad->pcidev->dev, DMA_BIT_MASK(64));
1559 if (rc)
1560 goto out_disable_device;
1561
1562 if (restart_bfa(bfad) == -1)
1563 goto out_disable_device;
1564
1565 pci_enable_pcie_error_reporting(pdev);
1566 dev_printk(KERN_WARNING, &pdev->dev,
1567 "slot_reset completed flags: 0x%x!\n", bfad->bfad_flags);
1568
1569 return PCI_ERS_RESULT_RECOVERED;
1570
1571 out_disable_device:
1572 pci_disable_device(pdev);
1573 return PCI_ERS_RESULT_DISCONNECT;
1574 }
1575
1576 static pci_ers_result_t
bfad_pci_mmio_enabled(struct pci_dev * pdev)1577 bfad_pci_mmio_enabled(struct pci_dev *pdev)
1578 {
1579 unsigned long flags;
1580 struct bfad_s *bfad = pci_get_drvdata(pdev);
1581
1582 dev_printk(KERN_INFO, &pdev->dev, "mmio_enabled\n");
1583
1584 /* Fetch FW diagnostic information */
1585 bfa_ioc_debug_save_ftrc(&bfad->bfa.ioc);
1586
1587 /* Cancel all pending IOs */
1588 spin_lock_irqsave(&bfad->bfad_lock, flags);
1589 init_completion(&bfad->comp);
1590 bfa_fcs_stop(&bfad->bfa_fcs);
1591 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1592 wait_for_completion(&bfad->comp);
1593
1594 bfad_remove_intr(bfad);
1595 del_timer_sync(&bfad->hal_tmo);
1596 pci_disable_device(pdev);
1597
1598 return PCI_ERS_RESULT_NEED_RESET;
1599 }
1600
1601 static void
bfad_pci_resume(struct pci_dev * pdev)1602 bfad_pci_resume(struct pci_dev *pdev)
1603 {
1604 unsigned long flags;
1605 struct bfad_s *bfad = pci_get_drvdata(pdev);
1606
1607 dev_printk(KERN_WARNING, &pdev->dev, "resume\n");
1608
1609 /* wait until the link is online */
1610 bfad_rport_online_wait(bfad);
1611
1612 spin_lock_irqsave(&bfad->bfad_lock, flags);
1613 bfad->bfad_flags &= ~BFAD_EEH_BUSY;
1614 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1615 }
1616
1617 struct pci_device_id bfad_id_table[] = {
1618 {
1619 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1620 .device = BFA_PCI_DEVICE_ID_FC_8G2P,
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_FC_8G1P,
1627 .subvendor = PCI_ANY_ID,
1628 .subdevice = PCI_ANY_ID,
1629 },
1630 {
1631 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1632 .device = BFA_PCI_DEVICE_ID_CT,
1633 .subvendor = PCI_ANY_ID,
1634 .subdevice = PCI_ANY_ID,
1635 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1636 .class_mask = ~0,
1637 },
1638 {
1639 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1640 .device = BFA_PCI_DEVICE_ID_CT_FC,
1641 .subvendor = PCI_ANY_ID,
1642 .subdevice = PCI_ANY_ID,
1643 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1644 .class_mask = ~0,
1645 },
1646 {
1647 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1648 .device = BFA_PCI_DEVICE_ID_CT2,
1649 .subvendor = PCI_ANY_ID,
1650 .subdevice = PCI_ANY_ID,
1651 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1652 .class_mask = ~0,
1653 },
1654
1655 {
1656 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1657 .device = BFA_PCI_DEVICE_ID_CT2_QUAD,
1658 .subvendor = PCI_ANY_ID,
1659 .subdevice = PCI_ANY_ID,
1660 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1661 .class_mask = ~0,
1662 },
1663 {0, 0},
1664 };
1665
1666 MODULE_DEVICE_TABLE(pci, bfad_id_table);
1667
1668 /*
1669 * PCI error recovery handlers.
1670 */
1671 static struct pci_error_handlers bfad_err_handler = {
1672 .error_detected = bfad_pci_error_detected,
1673 .slot_reset = bfad_pci_slot_reset,
1674 .mmio_enabled = bfad_pci_mmio_enabled,
1675 .resume = bfad_pci_resume,
1676 };
1677
1678 static struct pci_driver bfad_pci_driver = {
1679 .name = BFAD_DRIVER_NAME,
1680 .id_table = bfad_id_table,
1681 .probe = bfad_pci_probe,
1682 .remove = bfad_pci_remove,
1683 .err_handler = &bfad_err_handler,
1684 };
1685
1686 /*
1687 * Driver module init.
1688 */
1689 static int __init
bfad_init(void)1690 bfad_init(void)
1691 {
1692 int error = 0;
1693
1694 pr_info("QLogic BR-series BFA FC/FCOE SCSI driver - version: %s\n",
1695 BFAD_DRIVER_VERSION);
1696
1697 if (num_sgpgs > 0)
1698 num_sgpgs_parm = num_sgpgs;
1699
1700 error = bfad_im_module_init();
1701 if (error) {
1702 error = -ENOMEM;
1703 printk(KERN_WARNING "bfad_im_module_init failure\n");
1704 goto ext;
1705 }
1706
1707 if (strcmp(FCPI_NAME, " fcpim") == 0)
1708 supported_fc4s |= BFA_LPORT_ROLE_FCP_IM;
1709
1710 bfa_auto_recover = ioc_auto_recover;
1711 bfa_fcs_rport_set_del_timeout(rport_del_timeout);
1712 bfa_fcs_rport_set_max_logins(max_rport_logins);
1713
1714 error = pci_register_driver(&bfad_pci_driver);
1715 if (error) {
1716 printk(KERN_WARNING "pci_register_driver failure\n");
1717 goto ext;
1718 }
1719
1720 return 0;
1721
1722 ext:
1723 bfad_im_module_exit();
1724 return error;
1725 }
1726
1727 /*
1728 * Driver module exit.
1729 */
1730 static void __exit
bfad_exit(void)1731 bfad_exit(void)
1732 {
1733 pci_unregister_driver(&bfad_pci_driver);
1734 bfad_im_module_exit();
1735 bfad_free_fwimg();
1736 }
1737
1738 /* Firmware handling */
1739 static void
bfad_read_firmware(struct pci_dev * pdev,u32 ** bfi_image,u32 * bfi_image_size,char * fw_name)1740 bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
1741 u32 *bfi_image_size, char *fw_name)
1742 {
1743 const struct firmware *fw;
1744
1745 if (request_firmware(&fw, fw_name, &pdev->dev)) {
1746 printk(KERN_ALERT "Can't locate firmware %s\n", fw_name);
1747 *bfi_image = NULL;
1748 goto out;
1749 }
1750
1751 *bfi_image = vmalloc(fw->size);
1752 if (NULL == *bfi_image) {
1753 printk(KERN_ALERT "Fail to allocate buffer for fw image "
1754 "size=%x!\n", (u32) fw->size);
1755 goto out;
1756 }
1757
1758 memcpy(*bfi_image, fw->data, fw->size);
1759 *bfi_image_size = fw->size/sizeof(u32);
1760 out:
1761 release_firmware(fw);
1762 }
1763
1764 static u32 *
bfad_load_fwimg(struct pci_dev * pdev)1765 bfad_load_fwimg(struct pci_dev *pdev)
1766 {
1767 if (bfa_asic_id_ct2(pdev->device)) {
1768 if (bfi_image_ct2_size == 0)
1769 bfad_read_firmware(pdev, &bfi_image_ct2,
1770 &bfi_image_ct2_size, BFAD_FW_FILE_CT2);
1771 return bfi_image_ct2;
1772 } else if (bfa_asic_id_ct(pdev->device)) {
1773 if (bfi_image_ct_size == 0)
1774 bfad_read_firmware(pdev, &bfi_image_ct,
1775 &bfi_image_ct_size, BFAD_FW_FILE_CT);
1776 return bfi_image_ct;
1777 } else if (bfa_asic_id_cb(pdev->device)) {
1778 if (bfi_image_cb_size == 0)
1779 bfad_read_firmware(pdev, &bfi_image_cb,
1780 &bfi_image_cb_size, BFAD_FW_FILE_CB);
1781 return bfi_image_cb;
1782 }
1783
1784 return NULL;
1785 }
1786
1787 static void
bfad_free_fwimg(void)1788 bfad_free_fwimg(void)
1789 {
1790 if (bfi_image_ct2_size && bfi_image_ct2)
1791 vfree(bfi_image_ct2);
1792 if (bfi_image_ct_size && bfi_image_ct)
1793 vfree(bfi_image_ct);
1794 if (bfi_image_cb_size && bfi_image_cb)
1795 vfree(bfi_image_cb);
1796 }
1797
1798 module_init(bfad_init);
1799 module_exit(bfad_exit);
1800 MODULE_LICENSE("GPL");
1801 MODULE_DESCRIPTION("QLogic BR-series Fibre Channel HBA Driver" BFAD_PROTO_NAME);
1802 MODULE_AUTHOR("QLogic Corporation");
1803 MODULE_VERSION(BFAD_DRIVER_VERSION);
1804