projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[deliverable/linux.git] / drivers / scsi / bfa / bfad.c
1 /*
2 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
3 * All rights reserved
4 * www.brocade.com
5 *
6 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License (GPL) Version 2 as
10 * published by the Free Software Foundation
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 */
17
18 /*
19 * bfad.c Linux driver PCI interface module.
20 */
21 #include <linux/module.h>
22 #include <linux/kthread.h>
23 #include <linux/errno.h>
24 #include <linux/sched.h>
25 #include <linux/init.h>
26 #include <linux/fs.h>
27 #include <linux/pci.h>
28 #include <linux/firmware.h>
29 #include <asm/uaccess.h>
30 #include <asm/fcntl.h>
31
32 #include "bfad_drv.h"
33 #include "bfad_im.h"
34 #include "bfa_fcs.h"
35 #include "bfa_defs.h"
36 #include "bfa.h"
37
38 BFA_TRC_FILE(LDRV, BFAD);
39 DEFINE_MUTEX(bfad_mutex);
40 LIST_HEAD(bfad_list);
41
42 static int bfad_inst;
43 static int num_sgpgs_parm;
44 int supported_fc4s;
45 char *host_name, *os_name, *os_patch;
46 int num_rports, num_ios, num_tms;
47 int num_fcxps, num_ufbufs;
48 int reqq_size, rspq_size, num_sgpgs;
49 int rport_del_timeout = BFA_FCS_RPORT_DEF_DEL_TIMEOUT;
50 int bfa_lun_queue_depth = BFAD_LUN_QUEUE_DEPTH;
51 int bfa_io_max_sge = BFAD_IO_MAX_SGE;
52 int bfa_log_level = 3; /* WARNING log level */
53 int ioc_auto_recover = BFA_TRUE;
54 int bfa_linkup_delay = -1;
55 int fdmi_enable = BFA_TRUE;
56 int pcie_max_read_reqsz;
57 int bfa_debugfs_enable = 1;
58 int msix_disable_cb = 0, msix_disable_ct = 0;
59 int max_xfer_size = BFAD_MAX_SECTORS >> 1;
60
61 /* Firmware releated */
62 u32 bfi_image_cb_size, bfi_image_ct_size, bfi_image_ct2_size;
63 u32 *bfi_image_cb, *bfi_image_ct, *bfi_image_ct2;
64
65 #define BFAD_FW_FILE_CB "cbfw.bin"
66 #define BFAD_FW_FILE_CT "ctfw.bin"
67 #define BFAD_FW_FILE_CT2 "ct2fw.bin"
68
69 static u32 *bfad_load_fwimg(struct pci_dev *pdev);
70 static void bfad_free_fwimg(void);
71 static void bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
72 u32 *bfi_image_size, char *fw_name);
73
74 static const char *msix_name_ct[] = {
75 "ctrl",
76 "cpe0", "cpe1", "cpe2", "cpe3",
77 "rme0", "rme1", "rme2", "rme3" };
78
79 static const char *msix_name_cb[] = {
80 "cpe0", "cpe1", "cpe2", "cpe3",
81 "rme0", "rme1", "rme2", "rme3",
82 "eemc", "elpu0", "elpu1", "epss", "mlpu" };
83
84 MODULE_FIRMWARE(BFAD_FW_FILE_CB);
85 MODULE_FIRMWARE(BFAD_FW_FILE_CT);
86 MODULE_FIRMWARE(BFAD_FW_FILE_CT2);
87
88 module_param(os_name, charp, S_IRUGO | S_IWUSR);
89 MODULE_PARM_DESC(os_name, "OS name of the hba host machine");
90 module_param(os_patch, charp, S_IRUGO | S_IWUSR);
91 MODULE_PARM_DESC(os_patch, "OS patch level of the hba host machine");
92 module_param(host_name, charp, S_IRUGO | S_IWUSR);
93 MODULE_PARM_DESC(host_name, "Hostname of the hba host machine");
94 module_param(num_rports, int, S_IRUGO | S_IWUSR);
95 MODULE_PARM_DESC(num_rports, "Max number of rports supported per port "
96 "(physical/logical), default=1024");
97 module_param(num_ios, int, S_IRUGO | S_IWUSR);
98 MODULE_PARM_DESC(num_ios, "Max number of ioim requests, default=2000");
99 module_param(num_tms, int, S_IRUGO | S_IWUSR);
100 MODULE_PARM_DESC(num_tms, "Max number of task im requests, default=128");
101 module_param(num_fcxps, int, S_IRUGO | S_IWUSR);
102 MODULE_PARM_DESC(num_fcxps, "Max number of fcxp requests, default=64");
103 module_param(num_ufbufs, int, S_IRUGO | S_IWUSR);
104 MODULE_PARM_DESC(num_ufbufs, "Max number of unsolicited frame "
105 "buffers, default=64");
106 module_param(reqq_size, int, S_IRUGO | S_IWUSR);
107 MODULE_PARM_DESC(reqq_size, "Max number of request queue elements, "
108 "default=256");
109 module_param(rspq_size, int, S_IRUGO | S_IWUSR);
110 MODULE_PARM_DESC(rspq_size, "Max number of response queue elements, "
111 "default=64");
112 module_param(num_sgpgs, int, S_IRUGO | S_IWUSR);
113 MODULE_PARM_DESC(num_sgpgs, "Number of scatter/gather pages, default=2048");
114 module_param(rport_del_timeout, int, S_IRUGO | S_IWUSR);
115 MODULE_PARM_DESC(rport_del_timeout, "Rport delete timeout, default=90 secs, "
116 "Range[>0]");
117 module_param(bfa_lun_queue_depth, int, S_IRUGO | S_IWUSR);
118 MODULE_PARM_DESC(bfa_lun_queue_depth, "Lun queue depth, default=32, Range[>0]");
119 module_param(bfa_io_max_sge, int, S_IRUGO | S_IWUSR);
120 MODULE_PARM_DESC(bfa_io_max_sge, "Max io scatter/gather elements, default=255");
121 module_param(bfa_log_level, int, S_IRUGO | S_IWUSR);
122 MODULE_PARM_DESC(bfa_log_level, "Driver log level, default=3, "
123 "Range[Critical:1|Error:2|Warning:3|Info:4]");
124 module_param(ioc_auto_recover, int, S_IRUGO | S_IWUSR);
125 MODULE_PARM_DESC(ioc_auto_recover, "IOC auto recovery, default=1, "
126 "Range[off:0|on:1]");
127 module_param(bfa_linkup_delay, int, S_IRUGO | S_IWUSR);
128 MODULE_PARM_DESC(bfa_linkup_delay, "Link up delay, default=30 secs for "
129 "boot port. Otherwise 10 secs in RHEL4 & 0 for "
130 "[RHEL5, SLES10, ESX40] Range[>0]");
131 module_param(msix_disable_cb, int, S_IRUGO | S_IWUSR);
132 MODULE_PARM_DESC(msix_disable_cb, "Disable Message Signaled Interrupts "
133 "for Brocade-415/425/815/825 cards, default=0, "
134 " Range[false:0|true:1]");
135 module_param(msix_disable_ct, int, S_IRUGO | S_IWUSR);
136 MODULE_PARM_DESC(msix_disable_ct, "Disable Message Signaled Interrupts "
137 "if possible for Brocade-1010/1020/804/1007/902/1741 "
138 "cards, default=0, Range[false:0|true:1]");
139 module_param(fdmi_enable, int, S_IRUGO | S_IWUSR);
140 MODULE_PARM_DESC(fdmi_enable, "Enables fdmi registration, default=1, "
141 "Range[false:0|true:1]");
142 module_param(pcie_max_read_reqsz, int, S_IRUGO | S_IWUSR);
143 MODULE_PARM_DESC(pcie_max_read_reqsz, "PCIe max read request size, default=0 "
144 "(use system setting), Range[128|256|512|1024|2048|4096]");
145 module_param(bfa_debugfs_enable, int, S_IRUGO | S_IWUSR);
146 MODULE_PARM_DESC(bfa_debugfs_enable, "Enables debugfs feature, default=1,"
147 " Range[false:0|true:1]");
148 module_param(max_xfer_size, int, S_IRUGO | S_IWUSR);
149 MODULE_PARM_DESC(max_xfer_size, "default=32MB,"
150 " Range[64k|128k|256k|512k|1024k|2048k]");
151
152 static void
153 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event);
154 static void
155 bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event);
156 static void
157 bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event);
158 static void
159 bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event);
160 static void
161 bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event);
162 static void
163 bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event);
164 static void
165 bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event);
166
167 /*
168 * Beginning state for the driver instance, awaiting the pci_probe event
169 */
170 static void
171 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event)
172 {
173 bfa_trc(bfad, event);
174
175 switch (event) {
176 case BFAD_E_CREATE:
177 bfa_sm_set_state(bfad, bfad_sm_created);
178 bfad->bfad_tsk = kthread_create(bfad_worker, (void *) bfad,
179 "%s", "bfad_worker");
180 if (IS_ERR(bfad->bfad_tsk)) {
181 printk(KERN_INFO "bfad[%d]: Kernel thread "
182 "creation failed!\n", bfad->inst_no);
183 bfa_sm_send_event(bfad, BFAD_E_KTHREAD_CREATE_FAILED);
184 }
185 bfa_sm_send_event(bfad, BFAD_E_INIT);
186 break;
187
188 case BFAD_E_STOP:
189 /* Ignore stop; already in uninit */
190 break;
191
192 default:
193 bfa_sm_fault(bfad, event);
194 }
195 }
196
197 /*
198 * Driver Instance is created, awaiting event INIT to initialize the bfad
199 */
200 static void
201 bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event)
202 {
203 unsigned long flags;
204
205 bfa_trc(bfad, event);
206
207 switch (event) {
208 case BFAD_E_INIT:
209 bfa_sm_set_state(bfad, bfad_sm_initializing);
210
211 init_completion(&bfad->comp);
212
213 /* Enable Interrupt and wait bfa_init completion */
214 if (bfad_setup_intr(bfad)) {
215 printk(KERN_WARNING "bfad%d: bfad_setup_intr failed\n",
216 bfad->inst_no);
217 bfa_sm_send_event(bfad, BFAD_E_INTR_INIT_FAILED);
218 break;
219 }
220
221 spin_lock_irqsave(&bfad->bfad_lock, flags);
222 bfa_iocfc_init(&bfad->bfa);
223 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
224
225 /* Set up interrupt handler for each vectors */
226 if ((bfad->bfad_flags & BFAD_MSIX_ON) &&
227 bfad_install_msix_handler(bfad)) {
228 printk(KERN_WARNING "%s: install_msix failed, bfad%d\n",
229 __func__, bfad->inst_no);
230 }
231
232 bfad_init_timer(bfad);
233
234 wait_for_completion(&bfad->comp);
235
236 if ((bfad->bfad_flags & BFAD_HAL_INIT_DONE)) {
237 bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS);
238 } else {
239 printk(KERN_WARNING
240 "bfa %s: bfa init failed\n",
241 bfad->pci_name);
242 bfad->bfad_flags |= BFAD_HAL_INIT_FAIL;
243 bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
244 }
245
246 break;
247
248 case BFAD_E_KTHREAD_CREATE_FAILED:
249 bfa_sm_set_state(bfad, bfad_sm_uninit);
250 break;
251
252 default:
253 bfa_sm_fault(bfad, event);
254 }
255 }
256
257 static void
258 bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event)
259 {
260 int retval;
261 unsigned long flags;
262
263 bfa_trc(bfad, event);
264
265 switch (event) {
266 case BFAD_E_INIT_SUCCESS:
267 kthread_stop(bfad->bfad_tsk);
268 spin_lock_irqsave(&bfad->bfad_lock, flags);
269 bfad->bfad_tsk = NULL;
270 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
271
272 retval = bfad_start_ops(bfad);
273 if (retval != BFA_STATUS_OK)
274 break;
275 bfa_sm_set_state(bfad, bfad_sm_operational);
276 break;
277
278 case BFAD_E_INTR_INIT_FAILED:
279 bfa_sm_set_state(bfad, bfad_sm_uninit);
280 kthread_stop(bfad->bfad_tsk);
281 spin_lock_irqsave(&bfad->bfad_lock, flags);
282 bfad->bfad_tsk = NULL;
283 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
284 break;
285
286 case BFAD_E_INIT_FAILED:
287 bfa_sm_set_state(bfad, bfad_sm_failed);
288 break;
289 default:
290 bfa_sm_fault(bfad, event);
291 }
292 }
293
294 static void
295 bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event)
296 {
297 int retval;
298
299 bfa_trc(bfad, event);
300
301 switch (event) {
302 case BFAD_E_INIT_SUCCESS:
303 retval = bfad_start_ops(bfad);
304 if (retval != BFA_STATUS_OK)
305 break;
306 bfa_sm_set_state(bfad, bfad_sm_operational);
307 break;
308
309 case BFAD_E_STOP:
310 if (bfad->bfad_flags & BFAD_CFG_PPORT_DONE)
311 bfad_uncfg_pport(bfad);
312 if (bfad->bfad_flags & BFAD_FC4_PROBE_DONE) {
313 bfad_im_probe_undo(bfad);
314 bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE;
315 }
316 bfad_stop(bfad);
317 break;
318
319 case BFAD_E_EXIT_COMP:
320 bfa_sm_set_state(bfad, bfad_sm_uninit);
321 bfad_remove_intr(bfad);
322 del_timer_sync(&bfad->hal_tmo);
323 break;
324
325 default:
326 bfa_sm_fault(bfad, event);
327 }
328 }
329
330 static void
331 bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event)
332 {
333 bfa_trc(bfad, event);
334
335 switch (event) {
336 case BFAD_E_STOP:
337 bfa_sm_set_state(bfad, bfad_sm_fcs_exit);
338 bfad_fcs_stop(bfad);
339 break;
340
341 default:
342 bfa_sm_fault(bfad, event);
343 }
344 }
345
346 static void
347 bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event)
348 {
349 bfa_trc(bfad, event);
350
351 switch (event) {
352 case BFAD_E_FCS_EXIT_COMP:
353 bfa_sm_set_state(bfad, bfad_sm_stopping);
354 bfad_stop(bfad);
355 break;
356
357 default:
358 bfa_sm_fault(bfad, event);
359 }
360 }
361
362 static void
363 bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event)
364 {
365 bfa_trc(bfad, event);
366
367 switch (event) {
368 case BFAD_E_EXIT_COMP:
369 bfa_sm_set_state(bfad, bfad_sm_uninit);
370 bfad_remove_intr(bfad);
371 del_timer_sync(&bfad->hal_tmo);
372 bfad_im_probe_undo(bfad);
373 bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE;
374 bfad_uncfg_pport(bfad);
375 break;
376
377 default:
378 bfa_sm_fault(bfad, event);
379 break;
380 }
381 }
382
383 /*
384 * BFA callbacks
385 */
386 void
387 bfad_hcb_comp(void *arg, bfa_status_t status)
388 {
389 struct bfad_hal_comp *fcomp = (struct bfad_hal_comp *)arg;
390
391 fcomp->status = status;
392 complete(&fcomp->comp);
393 }
394
395 /*
396 * bfa_init callback
397 */
398 void
399 bfa_cb_init(void *drv, bfa_status_t init_status)
400 {
401 struct bfad_s *bfad = drv;
402
403 if (init_status == BFA_STATUS_OK) {
404 bfad->bfad_flags |= BFAD_HAL_INIT_DONE;
405
406 /*
407 * If BFAD_HAL_INIT_FAIL flag is set:
408 * Wake up the kernel thread to start
409 * the bfad operations after HAL init done
410 */
411 if ((bfad->bfad_flags & BFAD_HAL_INIT_FAIL)) {
412 bfad->bfad_flags &= ~BFAD_HAL_INIT_FAIL;
413 wake_up_process(bfad->bfad_tsk);
414 }
415 }
416
417 complete(&bfad->comp);
418 }
419
420 /*
421 * BFA_FCS callbacks
422 */
423 struct bfad_port_s *
424 bfa_fcb_lport_new(struct bfad_s *bfad, struct bfa_fcs_lport_s *port,
425 enum bfa_lport_role roles, struct bfad_vf_s *vf_drv,
426 struct bfad_vport_s *vp_drv)
427 {
428 bfa_status_t rc;
429 struct bfad_port_s *port_drv;
430
431 if (!vp_drv && !vf_drv) {
432 port_drv = &bfad->pport;
433 port_drv->pvb_type = BFAD_PORT_PHYS_BASE;
434 } else if (!vp_drv && vf_drv) {
435 port_drv = &vf_drv->base_port;
436 port_drv->pvb_type = BFAD_PORT_VF_BASE;
437 } else if (vp_drv && !vf_drv) {
438 port_drv = &vp_drv->drv_port;
439 port_drv->pvb_type = BFAD_PORT_PHYS_VPORT;
440 } else {
441 port_drv = &vp_drv->drv_port;
442 port_drv->pvb_type = BFAD_PORT_VF_VPORT;
443 }
444
445 port_drv->fcs_port = port;
446 port_drv->roles = roles;
447
448 if (roles & BFA_LPORT_ROLE_FCP_IM) {
449 rc = bfad_im_port_new(bfad, port_drv);
450 if (rc != BFA_STATUS_OK) {
451 bfad_im_port_delete(bfad, port_drv);
452 port_drv = NULL;
453 }
454 }
455
456 return port_drv;
457 }
458
459 /*
460 * FCS RPORT alloc callback, after successful PLOGI by FCS
461 */
462 bfa_status_t
463 bfa_fcb_rport_alloc(struct bfad_s *bfad, struct bfa_fcs_rport_s **rport,
464 struct bfad_rport_s **rport_drv)
465 {
466 bfa_status_t rc = BFA_STATUS_OK;
467
468 *rport_drv = kzalloc(sizeof(struct bfad_rport_s), GFP_ATOMIC);
469 if (*rport_drv == NULL) {
470 rc = BFA_STATUS_ENOMEM;
471 goto ext;
472 }
473
474 *rport = &(*rport_drv)->fcs_rport;
475
476 ext:
477 return rc;
478 }
479
480 /*
481 * FCS PBC VPORT Create
482 */
483 void
484 bfa_fcb_pbc_vport_create(struct bfad_s *bfad, struct bfi_pbc_vport_s pbc_vport)
485 {
486
487 struct bfa_lport_cfg_s port_cfg = {0};
488 struct bfad_vport_s *vport;
489 int rc;
490
491 vport = kzalloc(sizeof(struct bfad_vport_s), GFP_KERNEL);
492 if (!vport) {
493 bfa_trc(bfad, 0);
494 return;
495 }
496
497 vport->drv_port.bfad = bfad;
498 port_cfg.roles = BFA_LPORT_ROLE_FCP_IM;
499 port_cfg.pwwn = pbc_vport.vp_pwwn;
500 port_cfg.nwwn = pbc_vport.vp_nwwn;
501 port_cfg.preboot_vp = BFA_TRUE;
502
503 rc = bfa_fcs_pbc_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, 0,
504 &port_cfg, vport);
505
506 if (rc != BFA_STATUS_OK) {
507 bfa_trc(bfad, 0);
508 return;
509 }
510
511 list_add_tail(&vport->list_entry, &bfad->pbc_vport_list);
512 }
513
514 void
515 bfad_hal_mem_release(struct bfad_s *bfad)
516 {
517 struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo;
518 struct bfa_mem_dma_s *dma_info, *dma_elem;
519 struct bfa_mem_kva_s *kva_info, *kva_elem;
520 struct list_head *dm_qe, *km_qe;
521
522 dma_info = &hal_meminfo->dma_info;
523 kva_info = &hal_meminfo->kva_info;
524
525 /* Iterate through the KVA meminfo queue */
526 list_for_each(km_qe, &kva_info->qe) {
527 kva_elem = (struct bfa_mem_kva_s *) km_qe;
528 vfree(kva_elem->kva);
529 }
530
531 /* Iterate through the DMA meminfo queue */
532 list_for_each(dm_qe, &dma_info->qe) {
533 dma_elem = (struct bfa_mem_dma_s *) dm_qe;
534 dma_free_coherent(&bfad->pcidev->dev,
535 dma_elem->mem_len, dma_elem->kva,
536 (dma_addr_t) dma_elem->dma);
537 }
538
539 memset(hal_meminfo, 0, sizeof(struct bfa_meminfo_s));
540 }
541
542 void
543 bfad_update_hal_cfg(struct bfa_iocfc_cfg_s *bfa_cfg)
544 {
545 if (num_rports > 0)
546 bfa_cfg->fwcfg.num_rports = num_rports;
547 if (num_ios > 0)
548 bfa_cfg->fwcfg.num_ioim_reqs = num_ios;
549 if (num_tms > 0)
550 bfa_cfg->fwcfg.num_tskim_reqs = num_tms;
551 if (num_fcxps > 0 && num_fcxps <= BFA_FCXP_MAX)
552 bfa_cfg->fwcfg.num_fcxp_reqs = num_fcxps;
553 if (num_ufbufs > 0 && num_ufbufs <= BFA_UF_MAX)
554 bfa_cfg->fwcfg.num_uf_bufs = num_ufbufs;
555 if (reqq_size > 0)
556 bfa_cfg->drvcfg.num_reqq_elems = reqq_size;
557 if (rspq_size > 0)
558 bfa_cfg->drvcfg.num_rspq_elems = rspq_size;
559 if (num_sgpgs > 0 && num_sgpgs <= BFA_SGPG_MAX)
560 bfa_cfg->drvcfg.num_sgpgs = num_sgpgs;
561
562 /*
563 * populate the hal values back to the driver for sysfs use.
564 * otherwise, the default values will be shown as 0 in sysfs
565 */
566 num_rports = bfa_cfg->fwcfg.num_rports;
567 num_ios = bfa_cfg->fwcfg.num_ioim_reqs;
568 num_tms = bfa_cfg->fwcfg.num_tskim_reqs;
569 num_fcxps = bfa_cfg->fwcfg.num_fcxp_reqs;
570 num_ufbufs = bfa_cfg->fwcfg.num_uf_bufs;
571 reqq_size = bfa_cfg->drvcfg.num_reqq_elems;
572 rspq_size = bfa_cfg->drvcfg.num_rspq_elems;
573 num_sgpgs = bfa_cfg->drvcfg.num_sgpgs;
574 }
575
576 bfa_status_t
577 bfad_hal_mem_alloc(struct bfad_s *bfad)
578 {
579 struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo;
580 struct bfa_mem_dma_s *dma_info, *dma_elem;
581 struct bfa_mem_kva_s *kva_info, *kva_elem;
582 struct list_head *dm_qe, *km_qe;
583 bfa_status_t rc = BFA_STATUS_OK;
584 dma_addr_t phys_addr;
585
586 bfa_cfg_get_default(&bfad->ioc_cfg);
587 bfad_update_hal_cfg(&bfad->ioc_cfg);
588 bfad->cfg_data.ioc_queue_depth = bfad->ioc_cfg.fwcfg.num_ioim_reqs;
589 bfa_cfg_get_meminfo(&bfad->ioc_cfg, hal_meminfo, &bfad->bfa);
590
591 dma_info = &hal_meminfo->dma_info;
592 kva_info = &hal_meminfo->kva_info;
593
594 /* Iterate through the KVA meminfo queue */
595 list_for_each(km_qe, &kva_info->qe) {
596 kva_elem = (struct bfa_mem_kva_s *) km_qe;
597 kva_elem->kva = vmalloc(kva_elem->mem_len);
598 if (kva_elem->kva == NULL) {
599 bfad_hal_mem_release(bfad);
600 rc = BFA_STATUS_ENOMEM;
601 goto ext;
602 }
603 memset(kva_elem->kva, 0, kva_elem->mem_len);
604 }
605
606 /* Iterate through the DMA meminfo queue */
607 list_for_each(dm_qe, &dma_info->qe) {
608 dma_elem = (struct bfa_mem_dma_s *) dm_qe;
609 dma_elem->kva = dma_alloc_coherent(&bfad->pcidev->dev,
610 dma_elem->mem_len,
611 &phys_addr, GFP_KERNEL);
612 if (dma_elem->kva == NULL) {
613 bfad_hal_mem_release(bfad);
614 rc = BFA_STATUS_ENOMEM;
615 goto ext;
616 }
617 dma_elem->dma = phys_addr;
618 memset(dma_elem->kva, 0, dma_elem->mem_len);
619 }
620 ext:
621 return rc;
622 }
623
624 /*
625 * Create a vport under a vf.
626 */
627 bfa_status_t
628 bfad_vport_create(struct bfad_s *bfad, u16 vf_id,
629 struct bfa_lport_cfg_s *port_cfg, struct device *dev)
630 {
631 struct bfad_vport_s *vport;
632 int rc = BFA_STATUS_OK;
633 unsigned long flags;
634 struct completion fcomp;
635
636 vport = kzalloc(sizeof(struct bfad_vport_s), GFP_KERNEL);
637 if (!vport) {
638 rc = BFA_STATUS_ENOMEM;
639 goto ext;
640 }
641
642 vport->drv_port.bfad = bfad;
643 spin_lock_irqsave(&bfad->bfad_lock, flags);
644 rc = bfa_fcs_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, vf_id,
645 port_cfg, vport);
646 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
647
648 if (rc != BFA_STATUS_OK)
649 goto ext_free_vport;
650
651 if (port_cfg->roles & BFA_LPORT_ROLE_FCP_IM) {
652 rc = bfad_im_scsi_host_alloc(bfad, vport->drv_port.im_port,
653 dev);
654 if (rc != BFA_STATUS_OK)
655 goto ext_free_fcs_vport;
656 }
657
658 spin_lock_irqsave(&bfad->bfad_lock, flags);
659 bfa_fcs_vport_start(&vport->fcs_vport);
660 list_add_tail(&vport->list_entry, &bfad->vport_list);
661 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
662
663 return BFA_STATUS_OK;
664
665 ext_free_fcs_vport:
666 spin_lock_irqsave(&bfad->bfad_lock, flags);
667 vport->comp_del = &fcomp;
668 init_completion(vport->comp_del);
669 bfa_fcs_vport_delete(&vport->fcs_vport);
670 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
671 wait_for_completion(vport->comp_del);
672 ext_free_vport:
673 kfree(vport);
674 ext:
675 return rc;
676 }
677
678 void
679 bfad_bfa_tmo(unsigned long data)
680 {
681 struct bfad_s *bfad = (struct bfad_s *) data;
682 unsigned long flags;
683 struct list_head doneq;
684
685 spin_lock_irqsave(&bfad->bfad_lock, flags);
686
687 bfa_timer_beat(&bfad->bfa.timer_mod);
688
689 bfa_comp_deq(&bfad->bfa, &doneq);
690 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
691
692 if (!list_empty(&doneq)) {
693 bfa_comp_process(&bfad->bfa, &doneq);
694 spin_lock_irqsave(&bfad->bfad_lock, flags);
695 bfa_comp_free(&bfad->bfa, &doneq);
696 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
697 }
698
699 mod_timer(&bfad->hal_tmo,
700 jiffies + msecs_to_jiffies(BFA_TIMER_FREQ));
701 }
702
703 void
704 bfad_init_timer(struct bfad_s *bfad)
705 {
706 init_timer(&bfad->hal_tmo);
707 bfad->hal_tmo.function = bfad_bfa_tmo;
708 bfad->hal_tmo.data = (unsigned long)bfad;
709
710 mod_timer(&bfad->hal_tmo,
711 jiffies + msecs_to_jiffies(BFA_TIMER_FREQ));
712 }
713
714 int
715 bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad)
716 {
717 int rc = -ENODEV;
718
719 if (pci_enable_device(pdev)) {
720 printk(KERN_ERR "pci_enable_device fail %p\n", pdev);
721 goto out;
722 }
723
724 if (pci_request_regions(pdev, BFAD_DRIVER_NAME))
725 goto out_disable_device;
726
727 pci_set_master(pdev);
728
729
730 if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) ||
731 (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)) {
732 if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) ||
733 (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)) {
734 printk(KERN_ERR "pci_set_dma_mask fail %p\n", pdev);
735 goto out_release_region;
736 }
737 }
738
739 bfad->pci_bar0_kva = pci_iomap(pdev, 0, pci_resource_len(pdev, 0));
740 bfad->pci_bar2_kva = pci_iomap(pdev, 2, pci_resource_len(pdev, 2));
741
742 if (bfad->pci_bar0_kva == NULL) {
743 printk(KERN_ERR "Fail to map bar0\n");
744 goto out_release_region;
745 }
746
747 bfad->hal_pcidev.pci_slot = PCI_SLOT(pdev->devfn);
748 bfad->hal_pcidev.pci_func = PCI_FUNC(pdev->devfn);
749 bfad->hal_pcidev.pci_bar_kva = bfad->pci_bar0_kva;
750 bfad->hal_pcidev.device_id = pdev->device;
751 bfad->hal_pcidev.ssid = pdev->subsystem_device;
752 bfad->pci_name = pci_name(pdev);
753
754 bfad->pci_attr.vendor_id = pdev->vendor;
755 bfad->pci_attr.device_id = pdev->device;
756 bfad->pci_attr.ssid = pdev->subsystem_device;
757 bfad->pci_attr.ssvid = pdev->subsystem_vendor;
758 bfad->pci_attr.pcifn = PCI_FUNC(pdev->devfn);
759
760 bfad->pcidev = pdev;
761
762 /* Adjust PCIe Maximum Read Request Size */
763 if (pcie_max_read_reqsz > 0) {
764 int pcie_cap_reg;
765 u16 pcie_dev_ctl;
766 u16 mask = 0xffff;
767
768 switch (pcie_max_read_reqsz) {
769 case 128:
770 mask = 0x0;
771 break;
772 case 256:
773 mask = 0x1000;
774 break;
775 case 512:
776 mask = 0x2000;
777 break;
778 case 1024:
779 mask = 0x3000;
780 break;
781 case 2048:
782 mask = 0x4000;
783 break;
784 case 4096:
785 mask = 0x5000;
786 break;
787 default:
788 break;
789 }
790
791 pcie_cap_reg = pci_find_capability(pdev, PCI_CAP_ID_EXP);
792 if (mask != 0xffff && pcie_cap_reg) {
793 pcie_cap_reg += 0x08;
794 pci_read_config_word(pdev, pcie_cap_reg, &pcie_dev_ctl);
795 if ((pcie_dev_ctl & 0x7000) != mask) {
796 printk(KERN_WARNING "BFA[%s]: "
797 "pcie_max_read_request_size is %d, "
798 "reset to %d\n", bfad->pci_name,
799 (1 << ((pcie_dev_ctl & 0x7000) >> 12)) << 7,
800 pcie_max_read_reqsz);
801
802 pcie_dev_ctl &= ~0x7000;
803 pci_write_config_word(pdev, pcie_cap_reg,
804 pcie_dev_ctl | mask);
805 }
806 }
807 }
808
809 return 0;
810
811 out_release_region:
812 pci_release_regions(pdev);
813 out_disable_device:
814 pci_disable_device(pdev);
815 out:
816 return rc;
817 }
818
819 void
820 bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad)
821 {
822 pci_iounmap(pdev, bfad->pci_bar0_kva);
823 pci_iounmap(pdev, bfad->pci_bar2_kva);
824 pci_release_regions(pdev);
825 pci_disable_device(pdev);
826 pci_set_drvdata(pdev, NULL);
827 }
828
829 bfa_status_t
830 bfad_drv_init(struct bfad_s *bfad)
831 {
832 bfa_status_t rc;
833 unsigned long flags;
834
835 bfad->cfg_data.rport_del_timeout = rport_del_timeout;
836 bfad->cfg_data.lun_queue_depth = bfa_lun_queue_depth;
837 bfad->cfg_data.io_max_sge = bfa_io_max_sge;
838 bfad->cfg_data.binding_method = FCP_PWWN_BINDING;
839
840 rc = bfad_hal_mem_alloc(bfad);
841 if (rc != BFA_STATUS_OK) {
842 printk(KERN_WARNING "bfad%d bfad_hal_mem_alloc failure\n",
843 bfad->inst_no);
844 printk(KERN_WARNING
845 "Not enough memory to attach all Brocade HBA ports, %s",
846 "System may need more memory.\n");
847 goto out_hal_mem_alloc_failure;
848 }
849
850 bfad->bfa.trcmod = bfad->trcmod;
851 bfad->bfa.plog = &bfad->plog_buf;
852 bfa_plog_init(&bfad->plog_buf);
853 bfa_plog_str(&bfad->plog_buf, BFA_PL_MID_DRVR, BFA_PL_EID_DRIVER_START,
854 0, "Driver Attach");
855
856 bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg, &bfad->meminfo,
857 &bfad->hal_pcidev);
858
859 /* FCS INIT */
860 spin_lock_irqsave(&bfad->bfad_lock, flags);
861 bfad->bfa_fcs.trcmod = bfad->trcmod;
862 bfa_fcs_attach(&bfad->bfa_fcs, &bfad->bfa, bfad, BFA_FALSE);
863 bfad->bfa_fcs.fdmi_enabled = fdmi_enable;
864 bfa_fcs_init(&bfad->bfa_fcs);
865 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
866
867 bfad->bfad_flags |= BFAD_DRV_INIT_DONE;
868
869 /* configure base port */
870 rc = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM);
871 if (rc != BFA_STATUS_OK)
872 goto out_cfg_pport_fail;
873
874 return BFA_STATUS_OK;
875
876 out_cfg_pport_fail:
877 /* fcs exit - on cfg pport failure */
878 spin_lock_irqsave(&bfad->bfad_lock, flags);
879 init_completion(&bfad->comp);
880 bfad->pport.flags |= BFAD_PORT_DELETE;
881 bfa_fcs_exit(&bfad->bfa_fcs);
882 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
883 wait_for_completion(&bfad->comp);
884 /* bfa detach - free hal memory */
885 bfa_detach(&bfad->bfa);
886 bfad_hal_mem_release(bfad);
887 out_hal_mem_alloc_failure:
888 return BFA_STATUS_FAILED;
889 }
890
891 void
892 bfad_drv_uninit(struct bfad_s *bfad)
893 {
894 unsigned long flags;
895
896 spin_lock_irqsave(&bfad->bfad_lock, flags);
897 init_completion(&bfad->comp);
898 bfa_iocfc_stop(&bfad->bfa);
899 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
900 wait_for_completion(&bfad->comp);
901
902 del_timer_sync(&bfad->hal_tmo);
903 bfa_isr_disable(&bfad->bfa);
904 bfa_detach(&bfad->bfa);
905 bfad_remove_intr(bfad);
906 bfad_hal_mem_release(bfad);
907
908 bfad->bfad_flags &= ~BFAD_DRV_INIT_DONE;
909 }
910
911 void
912 bfad_drv_start(struct bfad_s *bfad)
913 {
914 unsigned long flags;
915
916 spin_lock_irqsave(&bfad->bfad_lock, flags);
917 bfa_iocfc_start(&bfad->bfa);
918 bfa_fcs_pbc_vport_init(&bfad->bfa_fcs);
919 bfa_fcs_fabric_modstart(&bfad->bfa_fcs);
920 bfad->bfad_flags |= BFAD_HAL_START_DONE;
921 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
922
923 if (bfad->im)
924 flush_workqueue(bfad->im->drv_workq);
925 }
926
927 void
928 bfad_fcs_stop(struct bfad_s *bfad)
929 {
930 unsigned long flags;
931
932 spin_lock_irqsave(&bfad->bfad_lock, flags);
933 init_completion(&bfad->comp);
934 bfad->pport.flags |= BFAD_PORT_DELETE;
935 bfa_fcs_exit(&bfad->bfa_fcs);
936 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
937 wait_for_completion(&bfad->comp);
938
939 bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP);
940 }
941
942 void
943 bfad_stop(struct bfad_s *bfad)
944 {
945 unsigned long flags;
946
947 spin_lock_irqsave(&bfad->bfad_lock, flags);
948 init_completion(&bfad->comp);
949 bfa_iocfc_stop(&bfad->bfa);
950 bfad->bfad_flags &= ~BFAD_HAL_START_DONE;
951 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
952 wait_for_completion(&bfad->comp);
953
954 bfa_sm_send_event(bfad, BFAD_E_EXIT_COMP);
955 }
956
957 bfa_status_t
958 bfad_cfg_pport(struct bfad_s *bfad, enum bfa_lport_role role)
959 {
960 int rc = BFA_STATUS_OK;
961
962 /* Allocate scsi_host for the physical port */
963 if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) &&
964 (role & BFA_LPORT_ROLE_FCP_IM)) {
965 if (bfad->pport.im_port == NULL) {
966 rc = BFA_STATUS_FAILED;
967 goto out;
968 }
969
970 rc = bfad_im_scsi_host_alloc(bfad, bfad->pport.im_port,
971 &bfad->pcidev->dev);
972 if (rc != BFA_STATUS_OK)
973 goto out;
974
975 bfad->pport.roles |= BFA_LPORT_ROLE_FCP_IM;
976 }
977
978 bfad->bfad_flags |= BFAD_CFG_PPORT_DONE;
979
980 out:
981 return rc;
982 }
983
984 void
985 bfad_uncfg_pport(struct bfad_s *bfad)
986 {
987 if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) &&
988 (bfad->pport.roles & BFA_LPORT_ROLE_FCP_IM)) {
989 bfad_im_scsi_host_free(bfad, bfad->pport.im_port);
990 bfad_im_port_clean(bfad->pport.im_port);
991 kfree(bfad->pport.im_port);
992 bfad->pport.roles &= ~BFA_LPORT_ROLE_FCP_IM;
993 }
994
995 bfad->bfad_flags &= ~BFAD_CFG_PPORT_DONE;
996 }
997
998 bfa_status_t
999 bfad_start_ops(struct bfad_s *bfad) {
1000
1001 int retval;
1002 unsigned long flags;
1003 struct bfad_vport_s *vport, *vport_new;
1004 struct bfa_fcs_driver_info_s driver_info;
1005
1006 /* Limit min/max. xfer size to [64k-32MB] */
1007 if (max_xfer_size < BFAD_MIN_SECTORS >> 1)
1008 max_xfer_size = BFAD_MIN_SECTORS >> 1;
1009 if (max_xfer_size > BFAD_MAX_SECTORS >> 1)
1010 max_xfer_size = BFAD_MAX_SECTORS >> 1;
1011
1012 /* Fill the driver_info info to fcs*/
1013 memset(&driver_info, 0, sizeof(driver_info));
1014 strncpy(driver_info.version, BFAD_DRIVER_VERSION,
1015 sizeof(driver_info.version) - 1);
1016 if (host_name)
1017 strncpy(driver_info.host_machine_name, host_name,
1018 sizeof(driver_info.host_machine_name) - 1);
1019 if (os_name)
1020 strncpy(driver_info.host_os_name, os_name,
1021 sizeof(driver_info.host_os_name) - 1);
1022 if (os_patch)
1023 strncpy(driver_info.host_os_patch, os_patch,
1024 sizeof(driver_info.host_os_patch) - 1);
1025
1026 strncpy(driver_info.os_device_name, bfad->pci_name,
1027 sizeof(driver_info.os_device_name - 1));
1028
1029 /* FCS driver info init */
1030 spin_lock_irqsave(&bfad->bfad_lock, flags);
1031 bfa_fcs_driver_info_init(&bfad->bfa_fcs, &driver_info);
1032 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1033
1034 /*
1035 * FCS update cfg - reset the pwwn/nwwn of fabric base logical port
1036 * with values learned during bfa_init firmware GETATTR REQ.
1037 */
1038 bfa_fcs_update_cfg(&bfad->bfa_fcs);
1039
1040 /* Setup fc host fixed attribute if the lk supports */
1041 bfad_fc_host_init(bfad->pport.im_port);
1042
1043 /* BFAD level FC4 IM specific resource allocation */
1044 retval = bfad_im_probe(bfad);
1045 if (retval != BFA_STATUS_OK) {
1046 printk(KERN_WARNING "bfad_im_probe failed\n");
1047 if (bfa_sm_cmp_state(bfad, bfad_sm_initializing))
1048 bfa_sm_set_state(bfad, bfad_sm_failed);
1049 bfad_im_probe_undo(bfad);
1050 bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE;
1051 bfad_uncfg_pport(bfad);
1052 bfad_stop(bfad);
1053 return BFA_STATUS_FAILED;
1054 } else
1055 bfad->bfad_flags |= BFAD_FC4_PROBE_DONE;
1056
1057 bfad_drv_start(bfad);
1058
1059 /* Complete pbc vport create */
1060 list_for_each_entry_safe(vport, vport_new, &bfad->pbc_vport_list,
1061 list_entry) {
1062 struct fc_vport_identifiers vid;
1063 struct fc_vport *fc_vport;
1064 char pwwn_buf[BFA_STRING_32];
1065
1066 memset(&vid, 0, sizeof(vid));
1067 vid.roles = FC_PORT_ROLE_FCP_INITIATOR;
1068 vid.vport_type = FC_PORTTYPE_NPIV;
1069 vid.disable = false;
1070 vid.node_name = wwn_to_u64((u8 *)
1071 (&((vport->fcs_vport).lport.port_cfg.nwwn)));
1072 vid.port_name = wwn_to_u64((u8 *)
1073 (&((vport->fcs_vport).lport.port_cfg.pwwn)));
1074 fc_vport = fc_vport_create(bfad->pport.im_port->shost, 0, &vid);
1075 if (!fc_vport) {
1076 wwn2str(pwwn_buf, vid.port_name);
1077 printk(KERN_WARNING "bfad%d: failed to create pbc vport"
1078 " %s\n", bfad->inst_no, pwwn_buf);
1079 }
1080 list_del(&vport->list_entry);
1081 kfree(vport);
1082 }
1083
1084 /*
1085 * If bfa_linkup_delay is set to -1 default; try to retrive the
1086 * value using the bfad_get_linkup_delay(); else use the
1087 * passed in module param value as the bfa_linkup_delay.
1088 */
1089 if (bfa_linkup_delay < 0) {
1090 bfa_linkup_delay = bfad_get_linkup_delay(bfad);
1091 bfad_rport_online_wait(bfad);
1092 bfa_linkup_delay = -1;
1093 } else
1094 bfad_rport_online_wait(bfad);
1095
1096 BFA_LOG(KERN_INFO, bfad, bfa_log_level, "bfa device claimed\n");
1097
1098 return BFA_STATUS_OK;
1099 }
1100
1101 int
1102 bfad_worker(void *ptr)
1103 {
1104 struct bfad_s *bfad;
1105 unsigned long flags;
1106
1107 bfad = (struct bfad_s *)ptr;
1108
1109 while (!kthread_should_stop()) {
1110
1111 /* Send event BFAD_E_INIT_SUCCESS */
1112 bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS);
1113
1114 spin_lock_irqsave(&bfad->bfad_lock, flags);
1115 bfad->bfad_tsk = NULL;
1116 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1117
1118 break;
1119 }
1120
1121 return 0;
1122 }
1123
1124 /*
1125 * BFA driver interrupt functions
1126 */
1127 irqreturn_t
1128 bfad_intx(int irq, void *dev_id)
1129 {
1130 struct bfad_s *bfad = dev_id;
1131 struct list_head doneq;
1132 unsigned long flags;
1133 bfa_boolean_t rc;
1134
1135 spin_lock_irqsave(&bfad->bfad_lock, flags);
1136 rc = bfa_intx(&bfad->bfa);
1137 if (!rc) {
1138 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1139 return IRQ_NONE;
1140 }
1141
1142 bfa_comp_deq(&bfad->bfa, &doneq);
1143 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1144
1145 if (!list_empty(&doneq)) {
1146 bfa_comp_process(&bfad->bfa, &doneq);
1147
1148 spin_lock_irqsave(&bfad->bfad_lock, flags);
1149 bfa_comp_free(&bfad->bfa, &doneq);
1150 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1151 }
1152
1153 return IRQ_HANDLED;
1154
1155 }
1156
1157 static irqreturn_t
1158 bfad_msix(int irq, void *dev_id)
1159 {
1160 struct bfad_msix_s *vec = dev_id;
1161 struct bfad_s *bfad = vec->bfad;
1162 struct list_head doneq;
1163 unsigned long flags;
1164
1165 spin_lock_irqsave(&bfad->bfad_lock, flags);
1166
1167 bfa_msix(&bfad->bfa, vec->msix.entry);
1168 bfa_comp_deq(&bfad->bfa, &doneq);
1169 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1170
1171 if (!list_empty(&doneq)) {
1172 bfa_comp_process(&bfad->bfa, &doneq);
1173
1174 spin_lock_irqsave(&bfad->bfad_lock, flags);
1175 bfa_comp_free(&bfad->bfa, &doneq);
1176 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1177 }
1178
1179 return IRQ_HANDLED;
1180 }
1181
1182 /*
1183 * Initialize the MSIX entry table.
1184 */
1185 static void
1186 bfad_init_msix_entry(struct bfad_s *bfad, struct msix_entry *msix_entries,
1187 int mask, int max_bit)
1188 {
1189 int i;
1190 int match = 0x00000001;
1191
1192 for (i = 0, bfad->nvec = 0; i < MAX_MSIX_ENTRY; i++) {
1193 if (mask & match) {
1194 bfad->msix_tab[bfad->nvec].msix.entry = i;
1195 bfad->msix_tab[bfad->nvec].bfad = bfad;
1196 msix_entries[bfad->nvec].entry = i;
1197 bfad->nvec++;
1198 }
1199
1200 match <<= 1;
1201 }
1202
1203 }
1204
1205 int
1206 bfad_install_msix_handler(struct bfad_s *bfad)
1207 {
1208 int i, error = 0;
1209
1210 for (i = 0; i < bfad->nvec; i++) {
1211 sprintf(bfad->msix_tab[i].name, "bfa-%s-%s",
1212 bfad->pci_name,
1213 ((bfa_asic_id_cb(bfad->hal_pcidev.device_id)) ?
1214 msix_name_cb[i] : msix_name_ct[i]));
1215
1216 error = request_irq(bfad->msix_tab[i].msix.vector,
1217 (irq_handler_t) bfad_msix, 0,
1218 bfad->msix_tab[i].name, &bfad->msix_tab[i]);
1219 bfa_trc(bfad, i);
1220 bfa_trc(bfad, bfad->msix_tab[i].msix.vector);
1221 if (error) {
1222 int j;
1223
1224 for (j = 0; j < i; j++)
1225 free_irq(bfad->msix_tab[j].msix.vector,
1226 &bfad->msix_tab[j]);
1227
1228 bfad->bfad_flags &= ~BFAD_MSIX_ON;
1229 pci_disable_msix(bfad->pcidev);
1230
1231 return 1;
1232 }
1233 }
1234
1235 return 0;
1236 }
1237
1238 /*
1239 * Setup MSIX based interrupt.
1240 */
1241 int
1242 bfad_setup_intr(struct bfad_s *bfad)
1243 {
1244 int error = 0;
1245 u32 mask = 0, i, num_bit = 0, max_bit = 0;
1246 struct msix_entry msix_entries[MAX_MSIX_ENTRY];
1247 struct pci_dev *pdev = bfad->pcidev;
1248 u16 reg;
1249
1250 /* Call BFA to get the msix map for this PCI function. */
1251 bfa_msix_getvecs(&bfad->bfa, &mask, &num_bit, &max_bit);
1252
1253 /* Set up the msix entry table */
1254 bfad_init_msix_entry(bfad, msix_entries, mask, max_bit);
1255
1256 if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
1257 (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {
1258
1259 error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
1260 if (error) {
1261 /*
1262 * Only error number of vector is available.
1263 * We don't have a mechanism to map multiple
1264 * interrupts into one vector, so even if we
1265 * can try to request less vectors, we don't
1266 * know how to associate interrupt events to
1267 * vectors. Linux doesn't duplicate vectors
1268 * in the MSIX table for this case.
1269 */
1270
1271 printk(KERN_WARNING "bfad%d: "
1272 "pci_enable_msix failed (%d),"
1273 " use line based.\n", bfad->inst_no, error);
1274
1275 goto line_based;
1276 }
1277
1278 /* Disable INTX in MSI-X mode */
1279 pci_read_config_word(pdev, PCI_COMMAND, &reg);
1280
1281 if (!(reg & PCI_COMMAND_INTX_DISABLE))
1282 pci_write_config_word(pdev, PCI_COMMAND,
1283 reg | PCI_COMMAND_INTX_DISABLE);
1284
1285 /* Save the vectors */
1286 for (i = 0; i < bfad->nvec; i++) {
1287 bfa_trc(bfad, msix_entries[i].vector);
1288 bfad->msix_tab[i].msix.vector = msix_entries[i].vector;
1289 }
1290
1291 bfa_msix_init(&bfad->bfa, bfad->nvec);
1292
1293 bfad->bfad_flags |= BFAD_MSIX_ON;
1294
1295 return error;
1296 }
1297
1298 line_based:
1299 error = 0;
1300 if (request_irq
1301 (bfad->pcidev->irq, (irq_handler_t) bfad_intx, BFAD_IRQ_FLAGS,
1302 BFAD_DRIVER_NAME, bfad) != 0) {
1303 /* Enable interrupt handler failed */
1304 return 1;
1305 }
1306 bfad->bfad_flags |= BFAD_INTX_ON;
1307
1308 return error;
1309 }
1310
1311 void
1312 bfad_remove_intr(struct bfad_s *bfad)
1313 {
1314 int i;
1315
1316 if (bfad->bfad_flags & BFAD_MSIX_ON) {
1317 for (i = 0; i < bfad->nvec; i++)
1318 free_irq(bfad->msix_tab[i].msix.vector,
1319 &bfad->msix_tab[i]);
1320
1321 pci_disable_msix(bfad->pcidev);
1322 bfad->bfad_flags &= ~BFAD_MSIX_ON;
1323 } else if (bfad->bfad_flags & BFAD_INTX_ON) {
1324 free_irq(bfad->pcidev->irq, bfad);
1325 }
1326 }
1327
1328 /*
1329 * PCI probe entry.
1330 */
1331 int
1332 bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid)
1333 {
1334 struct bfad_s *bfad;
1335 int error = -ENODEV, retval, i;
1336
1337 /* For single port cards - only claim function 0 */
1338 if ((pdev->device == BFA_PCI_DEVICE_ID_FC_8G1P) &&
1339 (PCI_FUNC(pdev->devfn) != 0))
1340 return -ENODEV;
1341
1342 bfad = kzalloc(sizeof(struct bfad_s), GFP_KERNEL);
1343 if (!bfad) {
1344 error = -ENOMEM;
1345 goto out;
1346 }
1347
1348 bfad->trcmod = kzalloc(sizeof(struct bfa_trc_mod_s), GFP_KERNEL);
1349 if (!bfad->trcmod) {
1350 printk(KERN_WARNING "Error alloc trace buffer!\n");
1351 error = -ENOMEM;
1352 goto out_alloc_trace_failure;
1353 }
1354
1355 /* TRACE INIT */
1356 bfa_trc_init(bfad->trcmod);
1357 bfa_trc(bfad, bfad_inst);
1358
1359 /* AEN INIT */
1360 INIT_LIST_HEAD(&bfad->free_aen_q);
1361 INIT_LIST_HEAD(&bfad->active_aen_q);
1362 for (i = 0; i < BFA_AEN_MAX_ENTRY; i++)
1363 list_add_tail(&bfad->aen_list[i].qe, &bfad->free_aen_q);
1364
1365 if (!(bfad_load_fwimg(pdev))) {
1366 kfree(bfad->trcmod);
1367 goto out_alloc_trace_failure;
1368 }
1369
1370 retval = bfad_pci_init(pdev, bfad);
1371 if (retval) {
1372 printk(KERN_WARNING "bfad_pci_init failure!\n");
1373 error = retval;
1374 goto out_pci_init_failure;
1375 }
1376
1377 mutex_lock(&bfad_mutex);
1378 bfad->inst_no = bfad_inst++;
1379 list_add_tail(&bfad->list_entry, &bfad_list);
1380 mutex_unlock(&bfad_mutex);
1381
1382 /* Initializing the state machine: State set to uninit */
1383 bfa_sm_set_state(bfad, bfad_sm_uninit);
1384
1385 spin_lock_init(&bfad->bfad_lock);
1386 spin_lock_init(&bfad->bfad_aen_spinlock);
1387
1388 pci_set_drvdata(pdev, bfad);
1389
1390 bfad->ref_count = 0;
1391 bfad->pport.bfad = bfad;
1392 INIT_LIST_HEAD(&bfad->pbc_vport_list);
1393 INIT_LIST_HEAD(&bfad->vport_list);
1394
1395 /* Setup the debugfs node for this bfad */
1396 if (bfa_debugfs_enable)
1397 bfad_debugfs_init(&bfad->pport);
1398
1399 retval = bfad_drv_init(bfad);
1400 if (retval != BFA_STATUS_OK)
1401 goto out_drv_init_failure;
1402
1403 bfa_sm_send_event(bfad, BFAD_E_CREATE);
1404
1405 if (bfa_sm_cmp_state(bfad, bfad_sm_uninit))
1406 goto out_bfad_sm_failure;
1407
1408 return 0;
1409
1410 out_bfad_sm_failure:
1411 bfa_detach(&bfad->bfa);
1412 bfad_hal_mem_release(bfad);
1413 out_drv_init_failure:
1414 /* Remove the debugfs node for this bfad */
1415 kfree(bfad->regdata);
1416 bfad_debugfs_exit(&bfad->pport);
1417 mutex_lock(&bfad_mutex);
1418 bfad_inst--;
1419 list_del(&bfad->list_entry);
1420 mutex_unlock(&bfad_mutex);
1421 bfad_pci_uninit(pdev, bfad);
1422 out_pci_init_failure:
1423 kfree(bfad->trcmod);
1424 out_alloc_trace_failure:
1425 kfree(bfad);
1426 out:
1427 return error;
1428 }
1429
1430 /*
1431 * PCI remove entry.
1432 */
1433 void
1434 bfad_pci_remove(struct pci_dev *pdev)
1435 {
1436 struct bfad_s *bfad = pci_get_drvdata(pdev);
1437 unsigned long flags;
1438
1439 bfa_trc(bfad, bfad->inst_no);
1440
1441 spin_lock_irqsave(&bfad->bfad_lock, flags);
1442 if (bfad->bfad_tsk != NULL) {
1443 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1444 kthread_stop(bfad->bfad_tsk);
1445 } else {
1446 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1447 }
1448
1449 /* Send Event BFAD_E_STOP */
1450 bfa_sm_send_event(bfad, BFAD_E_STOP);
1451
1452 /* Driver detach and dealloc mem */
1453 spin_lock_irqsave(&bfad->bfad_lock, flags);
1454 bfa_detach(&bfad->bfa);
1455 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1456 bfad_hal_mem_release(bfad);
1457
1458 /* Remove the debugfs node for this bfad */
1459 kfree(bfad->regdata);
1460 bfad_debugfs_exit(&bfad->pport);
1461
1462 /* Cleaning the BFAD instance */
1463 mutex_lock(&bfad_mutex);
1464 bfad_inst--;
1465 list_del(&bfad->list_entry);
1466 mutex_unlock(&bfad_mutex);
1467 bfad_pci_uninit(pdev, bfad);
1468
1469 kfree(bfad->trcmod);
1470 kfree(bfad);
1471 }
1472
1473 struct pci_device_id bfad_id_table[] = {
1474 {
1475 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1476 .device = BFA_PCI_DEVICE_ID_FC_8G2P,
1477 .subvendor = PCI_ANY_ID,
1478 .subdevice = PCI_ANY_ID,
1479 },
1480 {
1481 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1482 .device = BFA_PCI_DEVICE_ID_FC_8G1P,
1483 .subvendor = PCI_ANY_ID,
1484 .subdevice = PCI_ANY_ID,
1485 },
1486 {
1487 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1488 .device = BFA_PCI_DEVICE_ID_CT,
1489 .subvendor = PCI_ANY_ID,
1490 .subdevice = PCI_ANY_ID,
1491 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1492 .class_mask = ~0,
1493 },
1494 {
1495 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1496 .device = BFA_PCI_DEVICE_ID_CT_FC,
1497 .subvendor = PCI_ANY_ID,
1498 .subdevice = PCI_ANY_ID,
1499 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1500 .class_mask = ~0,
1501 },
1502 {
1503 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1504 .device = BFA_PCI_DEVICE_ID_CT2,
1505 .subvendor = PCI_ANY_ID,
1506 .subdevice = PCI_ANY_ID,
1507 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1508 .class_mask = ~0,
1509 },
1510
1511 {0, 0},
1512 };
1513
1514 MODULE_DEVICE_TABLE(pci, bfad_id_table);
1515
1516 static struct pci_driver bfad_pci_driver = {
1517 .name = BFAD_DRIVER_NAME,
1518 .id_table = bfad_id_table,
1519 .probe = bfad_pci_probe,
1520 .remove = __devexit_p(bfad_pci_remove),
1521 };
1522
1523 /*
1524 * Driver module init.
1525 */
1526 static int __init
1527 bfad_init(void)
1528 {
1529 int error = 0;
1530
1531 printk(KERN_INFO "Brocade BFA FC/FCOE SCSI driver - version: %s\n",
1532 BFAD_DRIVER_VERSION);
1533
1534 if (num_sgpgs > 0)
1535 num_sgpgs_parm = num_sgpgs;
1536
1537 error = bfad_im_module_init();
1538 if (error) {
1539 error = -ENOMEM;
1540 printk(KERN_WARNING "bfad_im_module_init failure\n");
1541 goto ext;
1542 }
1543
1544 if (strcmp(FCPI_NAME, " fcpim") == 0)
1545 supported_fc4s |= BFA_LPORT_ROLE_FCP_IM;
1546
1547 bfa_auto_recover = ioc_auto_recover;
1548 bfa_fcs_rport_set_del_timeout(rport_del_timeout);
1549
1550 error = pci_register_driver(&bfad_pci_driver);
1551 if (error) {
1552 printk(KERN_WARNING "pci_register_driver failure\n");
1553 goto ext;
1554 }
1555
1556 return 0;
1557
1558 ext:
1559 bfad_im_module_exit();
1560 return error;
1561 }
1562
1563 /*
1564 * Driver module exit.
1565 */
1566 static void __exit
1567 bfad_exit(void)
1568 {
1569 pci_unregister_driver(&bfad_pci_driver);
1570 bfad_im_module_exit();
1571 bfad_free_fwimg();
1572 }
1573
1574 /* Firmware handling */
1575 static void
1576 bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
1577 u32 *bfi_image_size, char *fw_name)
1578 {
1579 const struct firmware *fw;
1580
1581 if (request_firmware(&fw, fw_name, &pdev->dev)) {
1582 printk(KERN_ALERT "Can't locate firmware %s\n", fw_name);
1583 *bfi_image = NULL;
1584 goto out;
1585 }
1586
1587 *bfi_image = vmalloc(fw->size);
1588 if (NULL == *bfi_image) {
1589 printk(KERN_ALERT "Fail to allocate buffer for fw image "
1590 "size=%x!\n", (u32) fw->size);
1591 goto out;
1592 }
1593
1594 memcpy(*bfi_image, fw->data, fw->size);
1595 *bfi_image_size = fw->size/sizeof(u32);
1596 out:
1597 release_firmware(fw);
1598 }
1599
1600 static u32 *
1601 bfad_load_fwimg(struct pci_dev *pdev)
1602 {
1603 if (pdev->device == BFA_PCI_DEVICE_ID_CT2) {
1604 if (bfi_image_ct2_size == 0)
1605 bfad_read_firmware(pdev, &bfi_image_ct2,
1606 &bfi_image_ct2_size, BFAD_FW_FILE_CT2);
1607 return bfi_image_ct2;
1608 } else if (bfa_asic_id_ct(pdev->device)) {
1609 if (bfi_image_ct_size == 0)
1610 bfad_read_firmware(pdev, &bfi_image_ct,
1611 &bfi_image_ct_size, BFAD_FW_FILE_CT);
1612 return bfi_image_ct;
1613 } else {
1614 if (bfi_image_cb_size == 0)
1615 bfad_read_firmware(pdev, &bfi_image_cb,
1616 &bfi_image_cb_size, BFAD_FW_FILE_CB);
1617 return bfi_image_cb;
1618 }
1619 }
1620
1621 static void
1622 bfad_free_fwimg(void)
1623 {
1624 if (bfi_image_ct2_size && bfi_image_ct2)
1625 vfree(bfi_image_ct2);
1626 if (bfi_image_ct_size && bfi_image_ct)
1627 vfree(bfi_image_ct);
1628 if (bfi_image_cb_size && bfi_image_cb)
1629 vfree(bfi_image_cb);
1630 }
1631
1632 module_init(bfad_init);
1633 module_exit(bfad_exit);
1634 MODULE_LICENSE("GPL");
1635 MODULE_DESCRIPTION("Brocade Fibre Channel HBA Driver" BFAD_PROTO_NAME);
1636 MODULE_AUTHOR("Brocade Communications Systems, Inc.");
1637 MODULE_VERSION(BFAD_DRIVER_VERSION);
Linux kernel - Deliverables
This page took 0.091239 seconds and 5 git commands to generate.