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[SCSI] bfa: Brocade BFA FC SCSI driver
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / scsi / bfa / bfad.c
1 /*
2 * Copyright (c) 2005-2009 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
22 #include <linux/module.h>
23 #include "bfad_drv.h"
24 #include "bfad_im.h"
25 #include "bfad_tm.h"
26 #include "bfad_ipfc.h"
27 #include "bfad_trcmod.h"
28 #include <fcb/bfa_fcb_vf.h>
29 #include <fcb/bfa_fcb_rport.h>
30 #include <fcb/bfa_fcb_port.h>
31 #include <fcb/bfa_fcb.h>
32
33 BFA_TRC_FILE(LDRV, BFAD);
34 static DEFINE_MUTEX(bfad_mutex);
35 LIST_HEAD(bfad_list);
36 static int bfad_inst;
37 int bfad_supported_fc4s;
38
39 static char *host_name;
40 static char *os_name;
41 static char *os_patch;
42 static int num_rports;
43 static int num_ios;
44 static int num_tms;
45 static int num_fcxps;
46 static int num_ufbufs;
47 static int reqq_size;
48 static int rspq_size;
49 static int num_sgpgs;
50 static int rport_del_timeout = BFA_FCS_RPORT_DEF_DEL_TIMEOUT;
51 static int bfa_io_max_sge = BFAD_IO_MAX_SGE;
52 static int log_level = BFA_LOG_WARNING;
53 static int ioc_auto_recover = BFA_TRUE;
54 static int ipfc_enable = BFA_FALSE;
55 static int ipfc_mtu = -1;
56 int bfa_lun_queue_depth = BFAD_LUN_QUEUE_DEPTH;
57 int bfa_linkup_delay = -1;
58
59 module_param(os_name, charp, S_IRUGO | S_IWUSR);
60 module_param(os_patch, charp, S_IRUGO | S_IWUSR);
61 module_param(host_name, charp, S_IRUGO | S_IWUSR);
62 module_param(num_rports, int, S_IRUGO | S_IWUSR);
63 module_param(num_ios, int, S_IRUGO | S_IWUSR);
64 module_param(num_tms, int, S_IRUGO | S_IWUSR);
65 module_param(num_fcxps, int, S_IRUGO | S_IWUSR);
66 module_param(num_ufbufs, int, S_IRUGO | S_IWUSR);
67 module_param(reqq_size, int, S_IRUGO | S_IWUSR);
68 module_param(rspq_size, int, S_IRUGO | S_IWUSR);
69 module_param(num_sgpgs, int, S_IRUGO | S_IWUSR);
70 module_param(rport_del_timeout, int, S_IRUGO | S_IWUSR);
71 module_param(bfa_lun_queue_depth, int, S_IRUGO | S_IWUSR);
72 module_param(bfa_io_max_sge, int, S_IRUGO | S_IWUSR);
73 module_param(log_level, int, S_IRUGO | S_IWUSR);
74 module_param(ioc_auto_recover, int, S_IRUGO | S_IWUSR);
75 module_param(ipfc_enable, int, S_IRUGO | S_IWUSR);
76 module_param(ipfc_mtu, int, S_IRUGO | S_IWUSR);
77 module_param(bfa_linkup_delay, int, S_IRUGO | S_IWUSR);
78
79 /*
80 * Stores the module parm num_sgpgs value;
81 * used to reset for bfad next instance.
82 */
83 static int num_sgpgs_parm;
84
85 static bfa_status_t
86 bfad_fc4_probe(struct bfad_s *bfad)
87 {
88 int rc;
89
90 rc = bfad_im_probe(bfad);
91 if (rc != BFA_STATUS_OK)
92 goto ext;
93
94 bfad_tm_probe(bfad);
95
96 if (ipfc_enable)
97 bfad_ipfc_probe(bfad);
98 ext:
99 return rc;
100 }
101
102 static void
103 bfad_fc4_probe_undo(struct bfad_s *bfad)
104 {
105 bfad_im_probe_undo(bfad);
106 bfad_tm_probe_undo(bfad);
107 if (ipfc_enable)
108 bfad_ipfc_probe_undo(bfad);
109 }
110
111 static void
112 bfad_fc4_probe_post(struct bfad_s *bfad)
113 {
114 if (bfad->im)
115 bfad_im_probe_post(bfad->im);
116
117 bfad_tm_probe_post(bfad);
118 if (ipfc_enable)
119 bfad_ipfc_probe_post(bfad);
120 }
121
122 static bfa_status_t
123 bfad_fc4_port_new(struct bfad_s *bfad, struct bfad_port_s *port, int roles)
124 {
125 int rc = BFA_STATUS_FAILED;
126
127 if (roles & BFA_PORT_ROLE_FCP_IM)
128 rc = bfad_im_port_new(bfad, port);
129 if (rc != BFA_STATUS_OK)
130 goto ext;
131
132 if (roles & BFA_PORT_ROLE_FCP_TM)
133 rc = bfad_tm_port_new(bfad, port);
134 if (rc != BFA_STATUS_OK)
135 goto ext;
136
137 if ((roles & BFA_PORT_ROLE_FCP_IPFC) && ipfc_enable)
138 rc = bfad_ipfc_port_new(bfad, port, port->pvb_type);
139 ext:
140 return rc;
141 }
142
143 static void
144 bfad_fc4_port_delete(struct bfad_s *bfad, struct bfad_port_s *port, int roles)
145 {
146 if (roles & BFA_PORT_ROLE_FCP_IM)
147 bfad_im_port_delete(bfad, port);
148
149 if (roles & BFA_PORT_ROLE_FCP_TM)
150 bfad_tm_port_delete(bfad, port);
151
152 if ((roles & BFA_PORT_ROLE_FCP_IPFC) && ipfc_enable)
153 bfad_ipfc_port_delete(bfad, port);
154 }
155
156 /**
157 * BFA callbacks
158 */
159 void
160 bfad_hcb_comp(void *arg, bfa_status_t status)
161 {
162 struct bfad_hal_comp *fcomp = (struct bfad_hal_comp *)arg;
163
164 fcomp->status = status;
165 complete(&fcomp->comp);
166 }
167
168 /**
169 * bfa_init callback
170 */
171 void
172 bfa_cb_init(void *drv, bfa_status_t init_status)
173 {
174 struct bfad_s *bfad = drv;
175
176 if (init_status == BFA_STATUS_OK)
177 bfad->bfad_flags |= BFAD_HAL_INIT_DONE;
178
179 complete(&bfad->comp);
180 }
181
182
183
184 /**
185 * BFA_FCS callbacks
186 */
187 static struct bfad_port_s *
188 bfad_get_drv_port(struct bfad_s *bfad, struct bfad_vf_s *vf_drv,
189 struct bfad_vport_s *vp_drv)
190 {
191 return ((vp_drv) ? (&(vp_drv)->drv_port)
192 : ((vf_drv) ? (&(vf_drv)->base_port) : (&(bfad)->pport)));
193 }
194
195 struct bfad_port_s *
196 bfa_fcb_port_new(struct bfad_s *bfad, struct bfa_fcs_port_s *port,
197 enum bfa_port_role roles, struct bfad_vf_s *vf_drv,
198 struct bfad_vport_s *vp_drv)
199 {
200 bfa_status_t rc;
201 struct bfad_port_s *port_drv;
202
203 if (!vp_drv && !vf_drv) {
204 port_drv = &bfad->pport;
205 port_drv->pvb_type = BFAD_PORT_PHYS_BASE;
206 } else if (!vp_drv && vf_drv) {
207 port_drv = &vf_drv->base_port;
208 port_drv->pvb_type = BFAD_PORT_VF_BASE;
209 } else if (vp_drv && !vf_drv) {
210 port_drv = &vp_drv->drv_port;
211 port_drv->pvb_type = BFAD_PORT_PHYS_VPORT;
212 } else {
213 port_drv = &vp_drv->drv_port;
214 port_drv->pvb_type = BFAD_PORT_VF_VPORT;
215 }
216
217 port_drv->fcs_port = port;
218 port_drv->roles = roles;
219 rc = bfad_fc4_port_new(bfad, port_drv, roles);
220 if (rc != BFA_STATUS_OK) {
221 bfad_fc4_port_delete(bfad, port_drv, roles);
222 port_drv = NULL;
223 }
224
225 return port_drv;
226 }
227
228 void
229 bfa_fcb_port_delete(struct bfad_s *bfad, enum bfa_port_role roles,
230 struct bfad_vf_s *vf_drv, struct bfad_vport_s *vp_drv)
231 {
232 struct bfad_port_s *port_drv;
233
234 /*
235 * this will be only called from rmmod context
236 */
237 if (vp_drv && !vp_drv->comp_del) {
238 port_drv = bfad_get_drv_port(bfad, vf_drv, vp_drv);
239 bfa_trc(bfad, roles);
240 bfad_fc4_port_delete(bfad, port_drv, roles);
241 }
242 }
243
244 void
245 bfa_fcb_port_online(struct bfad_s *bfad, enum bfa_port_role roles,
246 struct bfad_vf_s *vf_drv, struct bfad_vport_s *vp_drv)
247 {
248 struct bfad_port_s *port_drv = bfad_get_drv_port(bfad, vf_drv, vp_drv);
249
250 if (roles & BFA_PORT_ROLE_FCP_IM)
251 bfad_im_port_online(bfad, port_drv);
252
253 if (roles & BFA_PORT_ROLE_FCP_TM)
254 bfad_tm_port_online(bfad, port_drv);
255
256 if ((roles & BFA_PORT_ROLE_FCP_IPFC) && ipfc_enable)
257 bfad_ipfc_port_online(bfad, port_drv);
258
259 bfad->bfad_flags |= BFAD_PORT_ONLINE;
260 }
261
262 void
263 bfa_fcb_port_offline(struct bfad_s *bfad, enum bfa_port_role roles,
264 struct bfad_vf_s *vf_drv, struct bfad_vport_s *vp_drv)
265 {
266 struct bfad_port_s *port_drv = bfad_get_drv_port(bfad, vf_drv, vp_drv);
267
268 if (roles & BFA_PORT_ROLE_FCP_IM)
269 bfad_im_port_offline(bfad, port_drv);
270
271 if (roles & BFA_PORT_ROLE_FCP_TM)
272 bfad_tm_port_offline(bfad, port_drv);
273
274 if ((roles & BFA_PORT_ROLE_FCP_IPFC) && ipfc_enable)
275 bfad_ipfc_port_offline(bfad, port_drv);
276 }
277
278 void
279 bfa_fcb_vport_delete(struct bfad_vport_s *vport_drv)
280 {
281 if (vport_drv->comp_del) {
282 complete(vport_drv->comp_del);
283 return;
284 }
285
286 kfree(vport_drv);
287 }
288
289 /**
290 * FCS RPORT alloc callback, after successful PLOGI by FCS
291 */
292 bfa_status_t
293 bfa_fcb_rport_alloc(struct bfad_s *bfad, struct bfa_fcs_rport_s **rport,
294 struct bfad_rport_s **rport_drv)
295 {
296 bfa_status_t rc = BFA_STATUS_OK;
297
298 *rport_drv = kzalloc(sizeof(struct bfad_rport_s), GFP_ATOMIC);
299 if (*rport_drv == NULL) {
300 rc = BFA_STATUS_ENOMEM;
301 goto ext;
302 }
303
304 *rport = &(*rport_drv)->fcs_rport;
305
306 ext:
307 return rc;
308 }
309
310
311
312 void
313 bfad_hal_mem_release(struct bfad_s *bfad)
314 {
315 int i;
316 struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo;
317 struct bfa_mem_elem_s *meminfo_elem;
318
319 for (i = 0; i < BFA_MEM_TYPE_MAX; i++) {
320 meminfo_elem = &hal_meminfo->meminfo[i];
321 if (meminfo_elem->kva != NULL) {
322 switch (meminfo_elem->mem_type) {
323 case BFA_MEM_TYPE_KVA:
324 vfree(meminfo_elem->kva);
325 break;
326 case BFA_MEM_TYPE_DMA:
327 dma_free_coherent(&bfad->pcidev->dev,
328 meminfo_elem->mem_len,
329 meminfo_elem->kva,
330 (dma_addr_t) meminfo_elem->dma);
331 break;
332 default:
333 bfa_assert(0);
334 break;
335 }
336 }
337 }
338
339 memset(hal_meminfo, 0, sizeof(struct bfa_meminfo_s));
340 }
341
342 void
343 bfad_update_hal_cfg(struct bfa_iocfc_cfg_s *bfa_cfg)
344 {
345 if (num_rports > 0)
346 bfa_cfg->fwcfg.num_rports = num_rports;
347 if (num_ios > 0)
348 bfa_cfg->fwcfg.num_ioim_reqs = num_ios;
349 if (num_tms > 0)
350 bfa_cfg->fwcfg.num_tskim_reqs = num_tms;
351 if (num_fcxps > 0)
352 bfa_cfg->fwcfg.num_fcxp_reqs = num_fcxps;
353 if (num_ufbufs > 0)
354 bfa_cfg->fwcfg.num_uf_bufs = num_ufbufs;
355 if (reqq_size > 0)
356 bfa_cfg->drvcfg.num_reqq_elems = reqq_size;
357 if (rspq_size > 0)
358 bfa_cfg->drvcfg.num_rspq_elems = rspq_size;
359 if (num_sgpgs > 0)
360 bfa_cfg->drvcfg.num_sgpgs = num_sgpgs;
361
362 /*
363 * populate the hal values back to the driver for sysfs use.
364 * otherwise, the default values will be shown as 0 in sysfs
365 */
366 num_rports = bfa_cfg->fwcfg.num_rports;
367 num_ios = bfa_cfg->fwcfg.num_ioim_reqs;
368 num_tms = bfa_cfg->fwcfg.num_tskim_reqs;
369 num_fcxps = bfa_cfg->fwcfg.num_fcxp_reqs;
370 num_ufbufs = bfa_cfg->fwcfg.num_uf_bufs;
371 reqq_size = bfa_cfg->drvcfg.num_reqq_elems;
372 rspq_size = bfa_cfg->drvcfg.num_rspq_elems;
373 num_sgpgs = bfa_cfg->drvcfg.num_sgpgs;
374 }
375
376 bfa_status_t
377 bfad_hal_mem_alloc(struct bfad_s *bfad)
378 {
379 struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo;
380 struct bfa_mem_elem_s *meminfo_elem;
381 bfa_status_t rc = BFA_STATUS_OK;
382 dma_addr_t phys_addr;
383 int retry_count = 0;
384 int reset_value = 1;
385 int min_num_sgpgs = 512;
386 void *kva;
387 int i;
388
389 bfa_cfg_get_default(&bfad->ioc_cfg);
390
391 retry:
392 bfad_update_hal_cfg(&bfad->ioc_cfg);
393 bfad->cfg_data.ioc_queue_depth = bfad->ioc_cfg.fwcfg.num_ioim_reqs;
394 bfa_cfg_get_meminfo(&bfad->ioc_cfg, hal_meminfo);
395
396 for (i = 0; i < BFA_MEM_TYPE_MAX; i++) {
397 meminfo_elem = &hal_meminfo->meminfo[i];
398 switch (meminfo_elem->mem_type) {
399 case BFA_MEM_TYPE_KVA:
400 kva = vmalloc(meminfo_elem->mem_len);
401 if (kva == NULL) {
402 bfad_hal_mem_release(bfad);
403 rc = BFA_STATUS_ENOMEM;
404 goto ext;
405 }
406 memset(kva, 0, meminfo_elem->mem_len);
407 meminfo_elem->kva = kva;
408 break;
409 case BFA_MEM_TYPE_DMA:
410 kva = dma_alloc_coherent(&bfad->pcidev->dev,
411 meminfo_elem->mem_len,
412 &phys_addr, GFP_KERNEL);
413 if (kva == NULL) {
414 bfad_hal_mem_release(bfad);
415 /*
416 * If we cannot allocate with default
417 * num_sgpages try with half the value.
418 */
419 if (num_sgpgs > min_num_sgpgs) {
420 printk(KERN_INFO "bfad[%d]: memory"
421 " allocation failed with"
422 " num_sgpgs: %d\n",
423 bfad->inst_no, num_sgpgs);
424 nextLowerInt(&num_sgpgs);
425 printk(KERN_INFO "bfad[%d]: trying to"
426 " allocate memory with"
427 " num_sgpgs: %d\n",
428 bfad->inst_no, num_sgpgs);
429 retry_count++;
430 goto retry;
431 } else {
432 if (num_sgpgs_parm > 0)
433 num_sgpgs = num_sgpgs_parm;
434 else {
435 reset_value =
436 (1 << retry_count);
437 num_sgpgs *= reset_value;
438 }
439 rc = BFA_STATUS_ENOMEM;
440 goto ext;
441 }
442 }
443
444 if (num_sgpgs_parm > 0)
445 num_sgpgs = num_sgpgs_parm;
446 else {
447 reset_value = (1 << retry_count);
448 num_sgpgs *= reset_value;
449 }
450
451 memset(kva, 0, meminfo_elem->mem_len);
452 meminfo_elem->kva = kva;
453 meminfo_elem->dma = phys_addr;
454 break;
455 default:
456 break;
457
458 }
459 }
460 ext:
461 return rc;
462 }
463
464 /**
465 * Create a vport under a vf.
466 */
467 bfa_status_t
468 bfad_vport_create(struct bfad_s *bfad, u16 vf_id,
469 struct bfa_port_cfg_s *port_cfg)
470 {
471 struct bfad_vport_s *vport;
472 int rc = BFA_STATUS_OK;
473 unsigned long flags;
474 struct completion fcomp;
475
476 vport = kzalloc(sizeof(struct bfad_vport_s), GFP_KERNEL);
477 if (!vport) {
478 rc = BFA_STATUS_ENOMEM;
479 goto ext;
480 }
481
482 vport->drv_port.bfad = bfad;
483 spin_lock_irqsave(&bfad->bfad_lock, flags);
484 rc = bfa_fcs_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, vf_id,
485 port_cfg, vport);
486 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
487
488 if (rc != BFA_STATUS_OK)
489 goto ext_free_vport;
490
491 if (port_cfg->roles & BFA_PORT_ROLE_FCP_IM) {
492 rc = bfad_im_scsi_host_alloc(bfad, vport->drv_port.im_port);
493 if (rc != BFA_STATUS_OK)
494 goto ext_free_fcs_vport;
495 }
496
497 spin_lock_irqsave(&bfad->bfad_lock, flags);
498 bfa_fcs_vport_start(&vport->fcs_vport);
499 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
500
501 return BFA_STATUS_OK;
502
503 ext_free_fcs_vport:
504 spin_lock_irqsave(&bfad->bfad_lock, flags);
505 vport->comp_del = &fcomp;
506 init_completion(vport->comp_del);
507 bfa_fcs_vport_delete(&vport->fcs_vport);
508 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
509 wait_for_completion(vport->comp_del);
510 ext_free_vport:
511 kfree(vport);
512 ext:
513 return rc;
514 }
515
516 /**
517 * Create a vf and its base vport implicitely.
518 */
519 bfa_status_t
520 bfad_vf_create(struct bfad_s *bfad, u16 vf_id,
521 struct bfa_port_cfg_s *port_cfg)
522 {
523 struct bfad_vf_s *vf;
524 int rc = BFA_STATUS_OK;
525
526 vf = kzalloc(sizeof(struct bfad_vf_s), GFP_KERNEL);
527 if (!vf) {
528 rc = BFA_STATUS_FAILED;
529 goto ext;
530 }
531
532 rc = bfa_fcs_vf_create(&vf->fcs_vf, &bfad->bfa_fcs, vf_id, port_cfg,
533 vf);
534 if (rc != BFA_STATUS_OK)
535 kfree(vf);
536 ext:
537 return rc;
538 }
539
540 void
541 bfad_bfa_tmo(unsigned long data)
542 {
543 struct bfad_s *bfad = (struct bfad_s *)data;
544 unsigned long flags;
545 struct list_head doneq;
546
547 spin_lock_irqsave(&bfad->bfad_lock, flags);
548
549 bfa_timer_tick(&bfad->bfa);
550
551 bfa_comp_deq(&bfad->bfa, &doneq);
552 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
553
554 if (!list_empty(&doneq)) {
555 bfa_comp_process(&bfad->bfa, &doneq);
556 spin_lock_irqsave(&bfad->bfad_lock, flags);
557 bfa_comp_free(&bfad->bfa, &doneq);
558 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
559 }
560
561 mod_timer(&bfad->hal_tmo, jiffies + msecs_to_jiffies(BFA_TIMER_FREQ));
562 }
563
564 void
565 bfad_init_timer(struct bfad_s *bfad)
566 {
567 init_timer(&bfad->hal_tmo);
568 bfad->hal_tmo.function = bfad_bfa_tmo;
569 bfad->hal_tmo.data = (unsigned long)bfad;
570
571 mod_timer(&bfad->hal_tmo, jiffies + msecs_to_jiffies(BFA_TIMER_FREQ));
572 }
573
574 int
575 bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad)
576 {
577 unsigned long bar0_len;
578 int rc = -ENODEV;
579
580 if (pci_enable_device(pdev)) {
581 BFA_PRINTF(BFA_ERR, "pci_enable_device fail %p\n", pdev);
582 goto out;
583 }
584
585 if (pci_request_regions(pdev, BFAD_DRIVER_NAME))
586 goto out_disable_device;
587
588 pci_set_master(pdev);
589
590
591 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)
592 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) {
593 BFA_PRINTF(BFA_ERR, "pci_set_dma_mask fail %p\n", pdev);
594 goto out_release_region;
595 }
596
597 bfad->pci_bar0_map = pci_resource_start(pdev, 0);
598 bar0_len = pci_resource_len(pdev, 0);
599 bfad->pci_bar0_kva = ioremap(bfad->pci_bar0_map, bar0_len);
600
601 if (bfad->pci_bar0_kva == NULL) {
602 BFA_PRINTF(BFA_ERR, "Fail to map bar0\n");
603 goto out_release_region;
604 }
605
606 bfad->hal_pcidev.pci_slot = PCI_SLOT(pdev->devfn);
607 bfad->hal_pcidev.pci_func = PCI_FUNC(pdev->devfn);
608 bfad->hal_pcidev.pci_bar_kva = bfad->pci_bar0_kva;
609 bfad->hal_pcidev.device_id = pdev->device;
610 bfad->pci_name = pci_name(pdev);
611
612 bfad->pci_attr.vendor_id = pdev->vendor;
613 bfad->pci_attr.device_id = pdev->device;
614 bfad->pci_attr.ssid = pdev->subsystem_device;
615 bfad->pci_attr.ssvid = pdev->subsystem_vendor;
616 bfad->pci_attr.pcifn = PCI_FUNC(pdev->devfn);
617
618 bfad->pcidev = pdev;
619 return 0;
620
621 out_release_region:
622 pci_release_regions(pdev);
623 out_disable_device:
624 pci_disable_device(pdev);
625 out:
626 return rc;
627 }
628
629 void
630 bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad)
631 {
632 #if defined(__ia64__)
633 pci_iounmap(pdev, bfad->pci_bar0_kva);
634 #else
635 iounmap(bfad->pci_bar0_kva);
636 #endif
637 pci_release_regions(pdev);
638 pci_disable_device(pdev);
639 pci_set_drvdata(pdev, NULL);
640 }
641
642 void
643 bfad_fcs_port_cfg(struct bfad_s *bfad)
644 {
645 struct bfa_port_cfg_s port_cfg;
646 struct bfa_pport_attr_s attr;
647 char symname[BFA_SYMNAME_MAXLEN];
648
649 sprintf(symname, "%s-%d", BFAD_DRIVER_NAME, bfad->inst_no);
650 memcpy(port_cfg.sym_name.symname, symname, strlen(symname));
651 bfa_pport_get_attr(&bfad->bfa, &attr);
652 port_cfg.nwwn = attr.nwwn;
653 port_cfg.pwwn = attr.pwwn;
654
655 bfa_fcs_cfg_base_port(&bfad->bfa_fcs, &port_cfg);
656 }
657
658 bfa_status_t
659 bfad_drv_init(struct bfad_s *bfad)
660 {
661 bfa_status_t rc;
662 unsigned long flags;
663 struct bfa_fcs_driver_info_s driver_info;
664 int i;
665
666 bfad->cfg_data.rport_del_timeout = rport_del_timeout;
667 bfad->cfg_data.lun_queue_depth = bfa_lun_queue_depth;
668 bfad->cfg_data.io_max_sge = bfa_io_max_sge;
669 bfad->cfg_data.binding_method = FCP_PWWN_BINDING;
670
671 rc = bfad_hal_mem_alloc(bfad);
672 if (rc != BFA_STATUS_OK) {
673 printk(KERN_WARNING "bfad%d bfad_hal_mem_alloc failure\n",
674 bfad->inst_no);
675 printk(KERN_WARNING
676 "Not enough memory to attach all Brocade HBA ports,"
677 " System may need more memory.\n");
678 goto out_hal_mem_alloc_failure;
679 }
680
681 bfa_init_log(&bfad->bfa, bfad->logmod);
682 bfa_init_trc(&bfad->bfa, bfad->trcmod);
683 bfa_init_aen(&bfad->bfa, bfad->aen);
684 INIT_LIST_HEAD(&bfad->file_q);
685 INIT_LIST_HEAD(&bfad->file_free_q);
686 for (i = 0; i < BFAD_AEN_MAX_APPS; i++) {
687 bfa_q_qe_init(&bfad->file_buf[i].qe);
688 list_add_tail(&bfad->file_buf[i].qe, &bfad->file_free_q);
689 }
690 bfa_init_plog(&bfad->bfa, &bfad->plog_buf);
691 bfa_plog_init(&bfad->plog_buf);
692 bfa_plog_str(&bfad->plog_buf, BFA_PL_MID_DRVR, BFA_PL_EID_DRIVER_START,
693 0, "Driver Attach");
694
695 bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg, &bfad->meminfo,
696 &bfad->hal_pcidev);
697
698 init_completion(&bfad->comp);
699
700 /*
701 * Enable Interrupt and wait bfa_init completion
702 */
703 if (bfad_setup_intr(bfad)) {
704 printk(KERN_WARNING "bfad%d: bfad_setup_intr failed\n",
705 bfad->inst_no);
706 goto out_setup_intr_failure;
707 }
708
709 spin_lock_irqsave(&bfad->bfad_lock, flags);
710 bfa_init(&bfad->bfa);
711 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
712
713 /*
714 * Set up interrupt handler for each vectors
715 */
716 if ((bfad->bfad_flags & BFAD_MSIX_ON)
717 && bfad_install_msix_handler(bfad)) {
718 printk(KERN_WARNING "%s: install_msix failed, bfad%d\n",
719 __FUNCTION__, bfad->inst_no);
720 }
721
722 bfad_init_timer(bfad);
723
724 wait_for_completion(&bfad->comp);
725
726 memset(&driver_info, 0, sizeof(driver_info));
727 strncpy(driver_info.version, BFAD_DRIVER_VERSION,
728 sizeof(driver_info.version) - 1);
729 if (host_name)
730 strncpy(driver_info.host_machine_name, host_name,
731 sizeof(driver_info.host_machine_name) - 1);
732 if (os_name)
733 strncpy(driver_info.host_os_name, os_name,
734 sizeof(driver_info.host_os_name) - 1);
735 if (os_patch)
736 strncpy(driver_info.host_os_patch, os_patch,
737 sizeof(driver_info.host_os_patch) - 1);
738
739 strncpy(driver_info.os_device_name, bfad->pci_name,
740 sizeof(driver_info.os_device_name - 1));
741
742 /*
743 * FCS INIT
744 */
745 spin_lock_irqsave(&bfad->bfad_lock, flags);
746 bfa_fcs_log_init(&bfad->bfa_fcs, bfad->logmod);
747 bfa_fcs_trc_init(&bfad->bfa_fcs, bfad->trcmod);
748 bfa_fcs_aen_init(&bfad->bfa_fcs, bfad->aen);
749 bfa_fcs_init(&bfad->bfa_fcs, &bfad->bfa, bfad, BFA_FALSE);
750 bfa_fcs_driver_info_init(&bfad->bfa_fcs, &driver_info);
751 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
752
753 bfad->bfad_flags |= BFAD_DRV_INIT_DONE;
754 return BFA_STATUS_OK;
755
756 out_setup_intr_failure:
757 bfa_detach(&bfad->bfa);
758 bfad_hal_mem_release(bfad);
759 out_hal_mem_alloc_failure:
760 return BFA_STATUS_FAILED;
761 }
762
763 void
764 bfad_drv_uninit(struct bfad_s *bfad)
765 {
766 del_timer_sync(&bfad->hal_tmo);
767 bfa_isr_disable(&bfad->bfa);
768 bfa_detach(&bfad->bfa);
769 bfad_remove_intr(bfad);
770 bfa_assert(list_empty(&bfad->file_q));
771 bfad_hal_mem_release(bfad);
772 }
773
774 void
775 bfad_drv_start(struct bfad_s *bfad)
776 {
777 unsigned long flags;
778
779 spin_lock_irqsave(&bfad->bfad_lock, flags);
780 bfa_start(&bfad->bfa);
781 bfa_fcs_start(&bfad->bfa_fcs);
782 bfad->bfad_flags |= BFAD_HAL_START_DONE;
783 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
784
785 bfad_fc4_probe_post(bfad);
786 }
787
788 void
789 bfad_drv_stop(struct bfad_s *bfad)
790 {
791 unsigned long flags;
792
793 spin_lock_irqsave(&bfad->bfad_lock, flags);
794 init_completion(&bfad->comp);
795 bfad->pport.flags |= BFAD_PORT_DELETE;
796 bfa_fcs_exit(&bfad->bfa_fcs);
797 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
798 wait_for_completion(&bfad->comp);
799
800 spin_lock_irqsave(&bfad->bfad_lock, flags);
801 init_completion(&bfad->comp);
802 bfa_stop(&bfad->bfa);
803 bfad->bfad_flags &= ~BFAD_HAL_START_DONE;
804 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
805 wait_for_completion(&bfad->comp);
806 }
807
808 bfa_status_t
809 bfad_cfg_pport(struct bfad_s *bfad, enum bfa_port_role role)
810 {
811 int rc = BFA_STATUS_OK;
812
813 /*
814 * Allocate scsi_host for the physical port
815 */
816 if ((bfad_supported_fc4s & BFA_PORT_ROLE_FCP_IM)
817 && (role & BFA_PORT_ROLE_FCP_IM)) {
818 if (bfad->pport.im_port == NULL) {
819 rc = BFA_STATUS_FAILED;
820 goto out;
821 }
822
823 rc = bfad_im_scsi_host_alloc(bfad, bfad->pport.im_port);
824 if (rc != BFA_STATUS_OK)
825 goto out;
826
827 bfad->pport.roles |= BFA_PORT_ROLE_FCP_IM;
828 }
829
830 bfad->bfad_flags |= BFAD_CFG_PPORT_DONE;
831
832 out:
833 return rc;
834 }
835
836 void
837 bfad_uncfg_pport(struct bfad_s *bfad)
838 {
839 if ((bfad->pport.roles & BFA_PORT_ROLE_FCP_IPFC) && ipfc_enable) {
840 bfad_ipfc_port_delete(bfad, &bfad->pport);
841 bfad->pport.roles &= ~BFA_PORT_ROLE_FCP_IPFC;
842 }
843
844 if ((bfad_supported_fc4s & BFA_PORT_ROLE_FCP_IM)
845 && (bfad->pport.roles & BFA_PORT_ROLE_FCP_IM)) {
846 bfad_im_scsi_host_free(bfad, bfad->pport.im_port);
847 bfad_im_port_clean(bfad->pport.im_port);
848 kfree(bfad->pport.im_port);
849 bfad->pport.roles &= ~BFA_PORT_ROLE_FCP_IM;
850 }
851
852 bfad->bfad_flags &= ~BFAD_CFG_PPORT_DONE;
853 }
854
855 void
856 bfad_drv_log_level_set(struct bfad_s *bfad)
857 {
858 if (log_level > BFA_LOG_INVALID && log_level <= BFA_LOG_LEVEL_MAX)
859 bfa_log_set_level_all(&bfad->log_data, log_level);
860 }
861
862 /*
863 * PCI_entry PCI driver entries * {
864 */
865
866 /**
867 * PCI probe entry.
868 */
869 int
870 bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid)
871 {
872 struct bfad_s *bfad;
873 int error = -ENODEV, retval;
874 char buf[16];
875
876 /*
877 * For single port cards - only claim function 0
878 */
879 if ((pdev->device == BFA_PCI_DEVICE_ID_FC_8G1P)
880 && (PCI_FUNC(pdev->devfn) != 0))
881 return -ENODEV;
882
883 BFA_TRACE(BFA_INFO, "bfad_pci_probe entry");
884
885 bfad = kzalloc(sizeof(struct bfad_s), GFP_KERNEL);
886 if (!bfad) {
887 error = -ENOMEM;
888 goto out;
889 }
890
891 bfad->trcmod = kzalloc(sizeof(struct bfa_trc_mod_s), GFP_KERNEL);
892 if (!bfad->trcmod) {
893 printk(KERN_WARNING "Error alloc trace buffer!\n");
894 error = -ENOMEM;
895 goto out_alloc_trace_failure;
896 }
897
898 /*
899 * LOG/TRACE INIT
900 */
901 bfa_trc_init(bfad->trcmod);
902 bfa_trc(bfad, bfad_inst);
903
904 bfad->logmod = &bfad->log_data;
905 sprintf(buf, "%d", bfad_inst);
906 bfa_log_init(bfad->logmod, buf, bfa_os_printf);
907
908 bfad_drv_log_level_set(bfad);
909
910 bfad->aen = &bfad->aen_buf;
911
912 if (!(bfad_load_fwimg(pdev))) {
913 printk(KERN_WARNING "bfad_load_fwimg failure!\n");
914 kfree(bfad->trcmod);
915 goto out_alloc_trace_failure;
916 }
917
918 retval = bfad_pci_init(pdev, bfad);
919 if (retval) {
920 printk(KERN_WARNING "bfad_pci_init failure!\n");
921 error = retval;
922 goto out_pci_init_failure;
923 }
924
925 mutex_lock(&bfad_mutex);
926 bfad->inst_no = bfad_inst++;
927 list_add_tail(&bfad->list_entry, &bfad_list);
928 mutex_unlock(&bfad_mutex);
929
930 spin_lock_init(&bfad->bfad_lock);
931 pci_set_drvdata(pdev, bfad);
932
933 bfad->ref_count = 0;
934 bfad->pport.bfad = bfad;
935
936 retval = bfad_drv_init(bfad);
937 if (retval != BFA_STATUS_OK)
938 goto out_drv_init_failure;
939 if (!(bfad->bfad_flags & BFAD_HAL_INIT_DONE)) {
940 printk(KERN_WARNING "bfad%d: hal init failed\n", bfad->inst_no);
941 goto ok;
942 }
943
944 /*
945 * PPORT FCS config
946 */
947 bfad_fcs_port_cfg(bfad);
948
949 retval = bfad_cfg_pport(bfad, BFA_PORT_ROLE_FCP_IM);
950 if (retval != BFA_STATUS_OK)
951 goto out_cfg_pport_failure;
952
953 /*
954 * BFAD level FC4 (IM/TM/IPFC) specific resource allocation
955 */
956 retval = bfad_fc4_probe(bfad);
957 if (retval != BFA_STATUS_OK) {
958 printk(KERN_WARNING "bfad_fc4_probe failed\n");
959 goto out_fc4_probe_failure;
960 }
961
962 bfad_drv_start(bfad);
963
964 /*
965 * If bfa_linkup_delay is set to -1 default; try to retrive the
966 * value using the bfad_os_get_linkup_delay(); else use the
967 * passed in module param value as the bfa_linkup_delay.
968 */
969 if (bfa_linkup_delay < 0) {
970 bfa_linkup_delay = bfad_os_get_linkup_delay(bfad);
971 bfad_os_rport_online_wait(bfad);
972 bfa_linkup_delay = -1;
973 } else {
974 bfad_os_rport_online_wait(bfad);
975 }
976
977 bfa_log(bfad->logmod, BFA_LOG_LINUX_DEVICE_CLAIMED, bfad->pci_name);
978 ok:
979 return 0;
980
981 out_fc4_probe_failure:
982 bfad_fc4_probe_undo(bfad);
983 bfad_uncfg_pport(bfad);
984 out_cfg_pport_failure:
985 bfad_drv_uninit(bfad);
986 out_drv_init_failure:
987 mutex_lock(&bfad_mutex);
988 bfad_inst--;
989 list_del(&bfad->list_entry);
990 mutex_unlock(&bfad_mutex);
991 bfad_pci_uninit(pdev, bfad);
992 out_pci_init_failure:
993 kfree(bfad->trcmod);
994 out_alloc_trace_failure:
995 kfree(bfad);
996 out:
997 return error;
998 }
999
1000 /**
1001 * PCI remove entry.
1002 */
1003 void
1004 bfad_pci_remove(struct pci_dev *pdev)
1005 {
1006 struct bfad_s *bfad = pci_get_drvdata(pdev);
1007 unsigned long flags;
1008
1009 bfa_trc(bfad, bfad->inst_no);
1010
1011 if ((bfad->bfad_flags & BFAD_DRV_INIT_DONE)
1012 && !(bfad->bfad_flags & BFAD_HAL_INIT_DONE)) {
1013
1014 spin_lock_irqsave(&bfad->bfad_lock, flags);
1015 init_completion(&bfad->comp);
1016 bfa_stop(&bfad->bfa);
1017 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1018 wait_for_completion(&bfad->comp);
1019
1020 bfad_remove_intr(bfad);
1021 del_timer_sync(&bfad->hal_tmo);
1022 goto hal_detach;
1023 } else if (!(bfad->bfad_flags & BFAD_DRV_INIT_DONE)) {
1024 goto remove_sysfs;
1025 }
1026
1027 if (bfad->bfad_flags & BFAD_HAL_START_DONE)
1028 bfad_drv_stop(bfad);
1029
1030 bfad_remove_intr(bfad);
1031
1032 del_timer_sync(&bfad->hal_tmo);
1033 bfad_fc4_probe_undo(bfad);
1034
1035 if (bfad->bfad_flags & BFAD_CFG_PPORT_DONE)
1036 bfad_uncfg_pport(bfad);
1037
1038 hal_detach:
1039 spin_lock_irqsave(&bfad->bfad_lock, flags);
1040 bfa_detach(&bfad->bfa);
1041 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1042 bfad_hal_mem_release(bfad);
1043 remove_sysfs:
1044
1045 mutex_lock(&bfad_mutex);
1046 bfad_inst--;
1047 list_del(&bfad->list_entry);
1048 mutex_unlock(&bfad_mutex);
1049 bfad_pci_uninit(pdev, bfad);
1050
1051 kfree(bfad->trcmod);
1052 kfree(bfad);
1053 }
1054
1055
1056 static struct pci_device_id bfad_id_table[] = {
1057 {
1058 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1059 .device = BFA_PCI_DEVICE_ID_FC_8G2P,
1060 .subvendor = PCI_ANY_ID,
1061 .subdevice = PCI_ANY_ID,
1062 },
1063 {
1064 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1065 .device = BFA_PCI_DEVICE_ID_FC_8G1P,
1066 .subvendor = PCI_ANY_ID,
1067 .subdevice = PCI_ANY_ID,
1068 },
1069 {
1070 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1071 .device = BFA_PCI_DEVICE_ID_CT,
1072 .subvendor = PCI_ANY_ID,
1073 .subdevice = PCI_ANY_ID,
1074 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1075 .class_mask = ~0,
1076 },
1077
1078 {0, 0},
1079 };
1080
1081 MODULE_DEVICE_TABLE(pci, bfad_id_table);
1082
1083 static struct pci_driver bfad_pci_driver = {
1084 .name = BFAD_DRIVER_NAME,
1085 .id_table = bfad_id_table,
1086 .probe = bfad_pci_probe,
1087 .remove = __devexit_p(bfad_pci_remove),
1088 };
1089
1090 /**
1091 * Linux driver module functions
1092 */
1093 bfa_status_t
1094 bfad_fc4_module_init(void)
1095 {
1096 int rc;
1097
1098 rc = bfad_im_module_init();
1099 if (rc != BFA_STATUS_OK)
1100 goto ext;
1101
1102 bfad_tm_module_init();
1103 if (ipfc_enable)
1104 bfad_ipfc_module_init();
1105 ext:
1106 return rc;
1107 }
1108
1109 void
1110 bfad_fc4_module_exit(void)
1111 {
1112 if (ipfc_enable)
1113 bfad_ipfc_module_exit();
1114 bfad_tm_module_exit();
1115 bfad_im_module_exit();
1116 }
1117
1118 /**
1119 * Driver module init.
1120 */
1121 static int __init
1122 bfad_init(void)
1123 {
1124 int error = 0;
1125
1126 printk(KERN_INFO "Brocade BFA FC/FCOE SCSI driver - version: %s\n",
1127 BFAD_DRIVER_VERSION);
1128
1129 if (num_sgpgs > 0)
1130 num_sgpgs_parm = num_sgpgs;
1131
1132 error = bfad_fc4_module_init();
1133 if (error) {
1134 error = -ENOMEM;
1135 printk(KERN_WARNING "bfad_fc4_module_init failure\n");
1136 goto ext;
1137 }
1138
1139 if (!strcmp(FCPI_NAME, " fcpim"))
1140 bfad_supported_fc4s |= BFA_PORT_ROLE_FCP_IM;
1141 if (!strcmp(FCPT_NAME, " fcptm"))
1142 bfad_supported_fc4s |= BFA_PORT_ROLE_FCP_TM;
1143 if (!strcmp(IPFC_NAME, " ipfc"))
1144 bfad_supported_fc4s |= BFA_PORT_ROLE_FCP_IPFC;
1145
1146 bfa_ioc_auto_recover(ioc_auto_recover);
1147 bfa_fcs_rport_set_del_timeout(rport_del_timeout);
1148 error = pci_register_driver(&bfad_pci_driver);
1149
1150 if (error) {
1151 printk(KERN_WARNING "bfad pci_register_driver failure\n");
1152 goto ext;
1153 }
1154
1155 return 0;
1156
1157 ext:
1158 bfad_fc4_module_exit();
1159 return error;
1160 }
1161
1162 /**
1163 * Driver module exit.
1164 */
1165 static void __exit
1166 bfad_exit(void)
1167 {
1168 pci_unregister_driver(&bfad_pci_driver);
1169 bfad_fc4_module_exit();
1170 bfad_free_fwimg();
1171 }
1172
1173 #define BFAD_PROTO_NAME FCPI_NAME FCPT_NAME IPFC_NAME
1174
1175 module_init(bfad_init);
1176 module_exit(bfad_exit);
1177 MODULE_LICENSE("GPL");
1178 MODULE_DESCRIPTION("Brocade Fibre Channel HBA Driver" BFAD_PROTO_NAME);
1179 MODULE_AUTHOR("Brocade Communications Systems, Inc.");
1180 MODULE_VERSION(BFAD_DRIVER_VERSION);
1181
1182
kernel source for telekom puls (alcatel/mediatek)