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drm/virtio: Don't return error if virtio-gpu PCI dev is not found
[drm/drm-misc.git] / drivers / scsi / bfa / bfad.c
blob6aa1d3a7e24bc8d4cc16b56dfa55d7c12eb2fd83
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
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
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
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
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
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
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
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
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
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 *
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
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
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
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
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
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
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
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
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
720 bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad)
721 {
722 int rc = -ENODEV;
723
724 if (pci_enable_device(pdev)) {
725 printk(KERN_ERR "pci_enable_device fail %p\n", pdev);
726 goto out;
727 }
728
729 if (pci_request_regions(pdev, BFAD_DRIVER_NAME))
730 goto out_disable_device;
731
732 pci_set_master(pdev);
733
734 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
735 if (rc) {
736 rc = -ENODEV;
737 printk(KERN_ERR "dma_set_mask_and_coherent fail %p\n", pdev);
738 goto out_release_region;
739 }
740
741 bfad->pci_bar0_kva = pci_iomap(pdev, 0, pci_resource_len(pdev, 0));
742 bfad->pci_bar2_kva = pci_iomap(pdev, 2, pci_resource_len(pdev, 2));
743
744 if (bfad->pci_bar0_kva == NULL) {
745 printk(KERN_ERR "Fail to map bar0\n");
746 rc = -ENODEV;
747 goto out_release_region;
748 }
749
750 bfad->hal_pcidev.pci_slot = PCI_SLOT(pdev->devfn);
751 bfad->hal_pcidev.pci_func = PCI_FUNC(pdev->devfn);
752 bfad->hal_pcidev.pci_bar_kva = bfad->pci_bar0_kva;
753 bfad->hal_pcidev.device_id = pdev->device;
754 bfad->hal_pcidev.ssid = pdev->subsystem_device;
755 bfad->pci_name = pci_name(pdev);
756
757 bfad->pci_attr.vendor_id = pdev->vendor;
758 bfad->pci_attr.device_id = pdev->device;
759 bfad->pci_attr.ssid = pdev->subsystem_device;
760 bfad->pci_attr.ssvid = pdev->subsystem_vendor;
761 bfad->pci_attr.pcifn = PCI_FUNC(pdev->devfn);
762
763 bfad->pcidev = pdev;
764
765 /* Adjust PCIe Maximum Read Request Size */
766 if (pci_is_pcie(pdev) && pcie_max_read_reqsz) {
767 if (pcie_max_read_reqsz >= 128 &&
768 pcie_max_read_reqsz <= 4096 &&
769 is_power_of_2(pcie_max_read_reqsz)) {
770 int max_rq = pcie_get_readrq(pdev);
771 printk(KERN_WARNING "BFA[%s]: "
772 "pcie_max_read_request_size is %d, "
773 "reset to %d\n", bfad->pci_name, max_rq,
774 pcie_max_read_reqsz);
775 pcie_set_readrq(pdev, pcie_max_read_reqsz);
776 } else {
777 printk(KERN_WARNING "BFA[%s]: invalid "
778 "pcie_max_read_request_size %d ignored\n",
779 bfad->pci_name, pcie_max_read_reqsz);
780 }
781 }
782
783 pci_save_state(pdev);
784
785 return 0;
786
787 out_release_region:
788 pci_release_regions(pdev);
789 out_disable_device:
790 pci_disable_device(pdev);
791 out:
792 return rc;
793 }
794
795 void
796 bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad)
797 {
798 pci_iounmap(pdev, bfad->pci_bar0_kva);
799 pci_iounmap(pdev, bfad->pci_bar2_kva);
800 pci_release_regions(pdev);
801 pci_disable_device(pdev);
802 }
803
804 bfa_status_t
805 bfad_drv_init(struct bfad_s *bfad)
806 {
807 bfa_status_t rc;
808 unsigned long flags;
809
810 bfad->cfg_data.rport_del_timeout = rport_del_timeout;
811 bfad->cfg_data.lun_queue_depth = bfa_lun_queue_depth;
812 bfad->cfg_data.io_max_sge = bfa_io_max_sge;
813 bfad->cfg_data.binding_method = FCP_PWWN_BINDING;
814
815 rc = bfad_hal_mem_alloc(bfad);
816 if (rc != BFA_STATUS_OK) {
817 printk(KERN_WARNING "bfad%d bfad_hal_mem_alloc failure\n",
818 bfad->inst_no);
819 printk(KERN_WARNING
820 "Not enough memory to attach all QLogic BR-series HBA ports. System may need more memory.\n");
821 return BFA_STATUS_FAILED;
822 }
823
824 bfad->bfa.trcmod = bfad->trcmod;
825 bfad->bfa.plog = &bfad->plog_buf;
826 bfa_plog_init(&bfad->plog_buf);
827 bfa_plog_str(&bfad->plog_buf, BFA_PL_MID_DRVR, BFA_PL_EID_DRIVER_START,
828 0, "Driver Attach");
829
830 bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg, &bfad->meminfo,
831 &bfad->hal_pcidev);
832
833 /* FCS INIT */
834 spin_lock_irqsave(&bfad->bfad_lock, flags);
835 bfad->bfa_fcs.trcmod = bfad->trcmod;
836 bfa_fcs_attach(&bfad->bfa_fcs, &bfad->bfa, bfad, BFA_FALSE);
837 bfad->bfa_fcs.fdmi_enabled = fdmi_enable;
838 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
839
840 bfad->bfad_flags |= BFAD_DRV_INIT_DONE;
841
842 return BFA_STATUS_OK;
843 }
844
845 void
846 bfad_drv_start(struct bfad_s *bfad)
847 {
848 unsigned long flags;
849
850 spin_lock_irqsave(&bfad->bfad_lock, flags);
851 bfa_iocfc_start(&bfad->bfa);
852 bfa_fcs_pbc_vport_init(&bfad->bfa_fcs);
853 bfa_fcs_fabric_modstart(&bfad->bfa_fcs);
854 bfad->bfad_flags |= BFAD_HAL_START_DONE;
855 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
856
857 if (bfad->im)
858 flush_workqueue(bfad->im->drv_workq);
859 }
860
861 void
862 bfad_fcs_stop(struct bfad_s *bfad)
863 {
864 unsigned long flags;
865
866 spin_lock_irqsave(&bfad->bfad_lock, flags);
867 init_completion(&bfad->comp);
868 bfad->pport.flags |= BFAD_PORT_DELETE;
869 bfa_fcs_exit(&bfad->bfa_fcs);
870 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
871 wait_for_completion(&bfad->comp);
872
873 bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP);
874 }
875
876 void
877 bfad_stop(struct bfad_s *bfad)
878 {
879 unsigned long flags;
880
881 spin_lock_irqsave(&bfad->bfad_lock, flags);
882 init_completion(&bfad->comp);
883 bfa_iocfc_stop(&bfad->bfa);
884 bfad->bfad_flags &= ~BFAD_HAL_START_DONE;
885 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
886 wait_for_completion(&bfad->comp);
887
888 bfa_sm_send_event(bfad, BFAD_E_EXIT_COMP);
889 }
890
891 bfa_status_t
892 bfad_cfg_pport(struct bfad_s *bfad, enum bfa_lport_role role)
893 {
894 int rc = BFA_STATUS_OK;
895
896 /* Allocate scsi_host for the physical port */
897 if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) &&
898 (role & BFA_LPORT_ROLE_FCP_IM)) {
899 if (bfad->pport.im_port == NULL) {
900 rc = BFA_STATUS_FAILED;
901 goto out;
902 }
903
904 rc = bfad_im_scsi_host_alloc(bfad, bfad->pport.im_port,
905 &bfad->pcidev->dev);
906 if (rc != BFA_STATUS_OK)
907 goto out;
908
909 bfad->pport.roles |= BFA_LPORT_ROLE_FCP_IM;
910 }
911
912 bfad->bfad_flags |= BFAD_CFG_PPORT_DONE;
913
914 out:
915 return rc;
916 }
917
918 void
919 bfad_uncfg_pport(struct bfad_s *bfad)
920 {
921 if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) &&
922 (bfad->pport.roles & BFA_LPORT_ROLE_FCP_IM)) {
923 bfad_im_scsi_host_free(bfad, bfad->pport.im_port);
924 bfad_im_port_clean(bfad->pport.im_port);
925 kfree(bfad->pport.im_port);
926 bfad->pport.roles &= ~BFA_LPORT_ROLE_FCP_IM;
927 }
928
929 bfad->bfad_flags &= ~BFAD_CFG_PPORT_DONE;
930 }
931
932 bfa_status_t
933 bfad_start_ops(struct bfad_s *bfad) {
934
935 int retval;
936 unsigned long flags;
937 struct bfad_vport_s *vport, *vport_new;
938 struct bfa_fcs_driver_info_s driver_info;
939
940 /* Limit min/max. xfer size to [64k-32MB] */
941 if (max_xfer_size < BFAD_MIN_SECTORS >> 1)
942 max_xfer_size = BFAD_MIN_SECTORS >> 1;
943 if (max_xfer_size > BFAD_MAX_SECTORS >> 1)
944 max_xfer_size = BFAD_MAX_SECTORS >> 1;
945
946 /* Fill the driver_info info to fcs*/
947 memset(&driver_info, 0, sizeof(driver_info));
948 strscpy(driver_info.version, BFAD_DRIVER_VERSION,
949 sizeof(driver_info.version));
950 if (host_name)
951 strscpy(driver_info.host_machine_name, host_name,
952 sizeof(driver_info.host_machine_name));
953 if (os_name)
954 strscpy(driver_info.host_os_name, os_name,
955 sizeof(driver_info.host_os_name));
956 if (os_patch)
957 strscpy(driver_info.host_os_patch, os_patch,
958 sizeof(driver_info.host_os_patch));
959
960 strscpy(driver_info.os_device_name, bfad->pci_name,
961 sizeof(driver_info.os_device_name));
962
963 /* FCS driver info init */
964 spin_lock_irqsave(&bfad->bfad_lock, flags);
965 bfa_fcs_driver_info_init(&bfad->bfa_fcs, &driver_info);
966
967 if (bfad->bfad_flags & BFAD_CFG_PPORT_DONE)
968 bfa_fcs_update_cfg(&bfad->bfa_fcs);
969 else
970 bfa_fcs_init(&bfad->bfa_fcs);
971
972 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
973
974 if (!(bfad->bfad_flags & BFAD_CFG_PPORT_DONE)) {
975 retval = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM);
976 if (retval != BFA_STATUS_OK)
977 return BFA_STATUS_FAILED;
978 }
979
980 /* Setup fc host fixed attribute if the lk supports */
981 bfad_fc_host_init(bfad->pport.im_port);
982
983 /* BFAD level FC4 IM specific resource allocation */
984 retval = bfad_im_probe(bfad);
985 if (retval != BFA_STATUS_OK) {
986 printk(KERN_WARNING "bfad_im_probe failed\n");
987 if (bfa_sm_cmp_state(bfad, bfad_sm_initializing))
988 bfa_sm_set_state(bfad, bfad_sm_failed);
989 return BFA_STATUS_FAILED;
990 } else
991 bfad->bfad_flags |= BFAD_FC4_PROBE_DONE;
992
993 bfad_drv_start(bfad);
994
995 /* Complete pbc vport create */
996 list_for_each_entry_safe(vport, vport_new, &bfad->pbc_vport_list,
997 list_entry) {
998 struct fc_vport_identifiers vid;
999 struct fc_vport *fc_vport;
1000 char pwwn_buf[BFA_STRING_32];
1001
1002 memset(&vid, 0, sizeof(vid));
1003 vid.roles = FC_PORT_ROLE_FCP_INITIATOR;
1004 vid.vport_type = FC_PORTTYPE_NPIV;
1005 vid.disable = false;
1006 vid.node_name = wwn_to_u64((u8 *)
1007 (&((vport->fcs_vport).lport.port_cfg.nwwn)));
1008 vid.port_name = wwn_to_u64((u8 *)
1009 (&((vport->fcs_vport).lport.port_cfg.pwwn)));
1010 fc_vport = fc_vport_create(bfad->pport.im_port->shost, 0, &vid);
1011 if (!fc_vport) {
1012 wwn2str(pwwn_buf, vid.port_name);
1013 printk(KERN_WARNING "bfad%d: failed to create pbc vport"
1014 " %s\n", bfad->inst_no, pwwn_buf);
1015 }
1016 list_del(&vport->list_entry);
1017 kfree(vport);
1018 }
1019
1020 /*
1021 * If bfa_linkup_delay is set to -1 default; try to retrive the
1022 * value using the bfad_get_linkup_delay(); else use the
1023 * passed in module param value as the bfa_linkup_delay.
1024 */
1025 if (bfa_linkup_delay < 0) {
1026 bfa_linkup_delay = bfad_get_linkup_delay(bfad);
1027 bfad_rport_online_wait(bfad);
1028 bfa_linkup_delay = -1;
1029 } else
1030 bfad_rport_online_wait(bfad);
1031
1032 BFA_LOG(KERN_INFO, bfad, bfa_log_level, "bfa device claimed\n");
1033
1034 return BFA_STATUS_OK;
1035 }
1036
1037 int
1038 bfad_worker(void *ptr)
1039 {
1040 struct bfad_s *bfad = ptr;
1041 unsigned long flags;
1042
1043 if (kthread_should_stop())
1044 return 0;
1045
1046 /* Send event BFAD_E_INIT_SUCCESS */
1047 bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS);
1048
1049 spin_lock_irqsave(&bfad->bfad_lock, flags);
1050 bfad->bfad_tsk = NULL;
1051 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1052
1053 return 0;
1054 }
1055
1056 /*
1057 * BFA driver interrupt functions
1058 */
1059 irqreturn_t
1060 bfad_intx(int irq, void *dev_id)
1061 {
1062 struct bfad_s *bfad = dev_id;
1063 struct list_head doneq;
1064 unsigned long flags;
1065 bfa_boolean_t rc;
1066
1067 spin_lock_irqsave(&bfad->bfad_lock, flags);
1068 rc = bfa_intx(&bfad->bfa);
1069 if (!rc) {
1070 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1071 return IRQ_NONE;
1072 }
1073
1074 bfa_comp_deq(&bfad->bfa, &doneq);
1075 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1076
1077 if (!list_empty(&doneq)) {
1078 bfa_comp_process(&bfad->bfa, &doneq);
1079
1080 spin_lock_irqsave(&bfad->bfad_lock, flags);
1081 bfa_comp_free(&bfad->bfa, &doneq);
1082 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1083 }
1084
1085 return IRQ_HANDLED;
1086
1087 }
1088
1089 static irqreturn_t
1090 bfad_msix(int irq, void *dev_id)
1091 {
1092 struct bfad_msix_s *vec = dev_id;
1093 struct bfad_s *bfad = vec->bfad;
1094 struct list_head doneq;
1095 unsigned long flags;
1096
1097 spin_lock_irqsave(&bfad->bfad_lock, flags);
1098
1099 bfa_msix(&bfad->bfa, vec->msix.entry);
1100 bfa_comp_deq(&bfad->bfa, &doneq);
1101 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1102
1103 if (!list_empty(&doneq)) {
1104 bfa_comp_process(&bfad->bfa, &doneq);
1105
1106 spin_lock_irqsave(&bfad->bfad_lock, flags);
1107 bfa_comp_free(&bfad->bfa, &doneq);
1108 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1109 }
1110
1111 return IRQ_HANDLED;
1112 }
1113
1114 /*
1115 * Initialize the MSIX entry table.
1116 */
1117 static void
1118 bfad_init_msix_entry(struct bfad_s *bfad, struct msix_entry *msix_entries,
1119 int mask, int max_bit)
1120 {
1121 int i;
1122 int match = 0x00000001;
1123
1124 for (i = 0, bfad->nvec = 0; i < MAX_MSIX_ENTRY; i++) {
1125 if (mask & match) {
1126 bfad->msix_tab[bfad->nvec].msix.entry = i;
1127 bfad->msix_tab[bfad->nvec].bfad = bfad;
1128 msix_entries[bfad->nvec].entry = i;
1129 bfad->nvec++;
1130 }
1131
1132 match <<= 1;
1133 }
1134
1135 }
1136
1137 int
1138 bfad_install_msix_handler(struct bfad_s *bfad)
1139 {
1140 int i, error = 0;
1141
1142 for (i = 0; i < bfad->nvec; i++) {
1143 sprintf(bfad->msix_tab[i].name, "bfa-%s-%s",
1144 bfad->pci_name,
1145 ((bfa_asic_id_cb(bfad->hal_pcidev.device_id)) ?
1146 msix_name_cb[i] : msix_name_ct[i]));
1147
1148 error = request_irq(bfad->msix_tab[i].msix.vector,
1149 (irq_handler_t) bfad_msix, 0,
1150 bfad->msix_tab[i].name, &bfad->msix_tab[i]);
1151 bfa_trc(bfad, i);
1152 bfa_trc(bfad, bfad->msix_tab[i].msix.vector);
1153 if (error) {
1154 int j;
1155
1156 for (j = 0; j < i; j++)
1157 free_irq(bfad->msix_tab[j].msix.vector,
1158 &bfad->msix_tab[j]);
1159
1160 bfad->bfad_flags &= ~BFAD_MSIX_ON;
1161 pci_disable_msix(bfad->pcidev);
1162
1163 return 1;
1164 }
1165 }
1166
1167 return 0;
1168 }
1169
1170 /*
1171 * Setup MSIX based interrupt.
1172 */
1173 int
1174 bfad_setup_intr(struct bfad_s *bfad)
1175 {
1176 int error;
1177 u32 mask = 0, i, num_bit = 0, max_bit = 0;
1178 struct msix_entry msix_entries[MAX_MSIX_ENTRY];
1179 struct pci_dev *pdev = bfad->pcidev;
1180 u16 reg;
1181
1182 /* Call BFA to get the msix map for this PCI function. */
1183 bfa_msix_getvecs(&bfad->bfa, &mask, &num_bit, &max_bit);
1184
1185 /* Set up the msix entry table */
1186 bfad_init_msix_entry(bfad, msix_entries, mask, max_bit);
1187
1188 if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
1189 (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {
1190
1191 error = pci_enable_msix_exact(bfad->pcidev,
1192 msix_entries, bfad->nvec);
1193 /* In CT1 & CT2, try to allocate just one vector */
1194 if (error == -ENOSPC && bfa_asic_id_ctc(pdev->device)) {
1195 printk(KERN_WARNING "bfa %s: trying one msix "
1196 "vector failed to allocate %d[%d]\n",
1197 bfad->pci_name, bfad->nvec, error);
1198 bfad->nvec = 1;
1199 error = pci_enable_msix_exact(bfad->pcidev,
1200 msix_entries, 1);
1201 }
1202
1203 if (error) {
1204 printk(KERN_WARNING "bfad%d: "
1205 "pci_enable_msix_exact failed (%d), "
1206 "use line based.\n",
1207 bfad->inst_no, error);
1208 goto line_based;
1209 }
1210
1211 /* Disable INTX in MSI-X mode */
1212 pci_read_config_word(pdev, PCI_COMMAND, &reg);
1213
1214 if (!(reg & PCI_COMMAND_INTX_DISABLE))
1215 pci_write_config_word(pdev, PCI_COMMAND,
1216 reg | PCI_COMMAND_INTX_DISABLE);
1217
1218 /* Save the vectors */
1219 for (i = 0; i < bfad->nvec; i++) {
1220 bfa_trc(bfad, msix_entries[i].vector);
1221 bfad->msix_tab[i].msix.vector = msix_entries[i].vector;
1222 }
1223
1224 bfa_msix_init(&bfad->bfa, bfad->nvec);
1225
1226 bfad->bfad_flags |= BFAD_MSIX_ON;
1227
1228 return 0;
1229 }
1230
1231 line_based:
1232 error = request_irq(bfad->pcidev->irq, (irq_handler_t)bfad_intx,
1233 BFAD_IRQ_FLAGS, BFAD_DRIVER_NAME, bfad);
1234 if (error)
1235 return error;
1236
1237 bfad->bfad_flags |= BFAD_INTX_ON;
1238
1239 return 0;
1240 }
1241
1242 void
1243 bfad_remove_intr(struct bfad_s *bfad)
1244 {
1245 int i;
1246
1247 if (bfad->bfad_flags & BFAD_MSIX_ON) {
1248 for (i = 0; i < bfad->nvec; i++)
1249 free_irq(bfad->msix_tab[i].msix.vector,
1250 &bfad->msix_tab[i]);
1251
1252 pci_disable_msix(bfad->pcidev);
1253 bfad->bfad_flags &= ~BFAD_MSIX_ON;
1254 } else if (bfad->bfad_flags & BFAD_INTX_ON) {
1255 free_irq(bfad->pcidev->irq, bfad);
1256 }
1257 }
1258
1259 /*
1260 * PCI probe entry.
1261 */
1262 int
1263 bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid)
1264 {
1265 struct bfad_s *bfad;
1266 int error = -ENODEV, retval, i;
1267
1268 /* For single port cards - only claim function 0 */
1269 if ((pdev->device == BFA_PCI_DEVICE_ID_FC_8G1P) &&
1270 (PCI_FUNC(pdev->devfn) != 0))
1271 return -ENODEV;
1272
1273 bfad = kzalloc(sizeof(struct bfad_s), GFP_KERNEL);
1274 if (!bfad) {
1275 error = -ENOMEM;
1276 goto out;
1277 }
1278
1279 bfad->trcmod = kzalloc(sizeof(struct bfa_trc_mod_s), GFP_KERNEL);
1280 if (!bfad->trcmod) {
1281 printk(KERN_WARNING "Error alloc trace buffer!\n");
1282 error = -ENOMEM;
1283 goto out_alloc_trace_failure;
1284 }
1285
1286 /* TRACE INIT */
1287 bfa_trc_init(bfad->trcmod);
1288 bfa_trc(bfad, bfad_inst);
1289
1290 /* AEN INIT */
1291 INIT_LIST_HEAD(&bfad->free_aen_q);
1292 INIT_LIST_HEAD(&bfad->active_aen_q);
1293 for (i = 0; i < BFA_AEN_MAX_ENTRY; i++)
1294 list_add_tail(&bfad->aen_list[i].qe, &bfad->free_aen_q);
1295
1296 if (!(bfad_load_fwimg(pdev))) {
1297 kfree(bfad->trcmod);
1298 goto out_alloc_trace_failure;
1299 }
1300
1301 retval = bfad_pci_init(pdev, bfad);
1302 if (retval) {
1303 printk(KERN_WARNING "bfad_pci_init failure!\n");
1304 error = retval;
1305 goto out_pci_init_failure;
1306 }
1307
1308 mutex_lock(&bfad_mutex);
1309 bfad->inst_no = bfad_inst++;
1310 list_add_tail(&bfad->list_entry, &bfad_list);
1311 mutex_unlock(&bfad_mutex);
1312
1313 /* Initializing the state machine: State set to uninit */
1314 bfa_sm_set_state(bfad, bfad_sm_uninit);
1315
1316 spin_lock_init(&bfad->bfad_lock);
1317 spin_lock_init(&bfad->bfad_aen_spinlock);
1318
1319 pci_set_drvdata(pdev, bfad);
1320
1321 bfad->ref_count = 0;
1322 bfad->pport.bfad = bfad;
1323 INIT_LIST_HEAD(&bfad->pbc_vport_list);
1324 INIT_LIST_HEAD(&bfad->vport_list);
1325
1326 /* Setup the debugfs node for this bfad */
1327 if (bfa_debugfs_enable)
1328 bfad_debugfs_init(&bfad->pport);
1329
1330 retval = bfad_drv_init(bfad);
1331 if (retval != BFA_STATUS_OK)
1332 goto out_drv_init_failure;
1333
1334 bfa_sm_send_event(bfad, BFAD_E_CREATE);
1335
1336 if (bfa_sm_cmp_state(bfad, bfad_sm_uninit))
1337 goto out_bfad_sm_failure;
1338
1339 return 0;
1340
1341 out_bfad_sm_failure:
1342 bfad_hal_mem_release(bfad);
1343 out_drv_init_failure:
1344 /* Remove the debugfs node for this bfad */
1345 kfree(bfad->regdata);
1346 bfad_debugfs_exit(&bfad->pport);
1347 mutex_lock(&bfad_mutex);
1348 bfad_inst--;
1349 list_del(&bfad->list_entry);
1350 mutex_unlock(&bfad_mutex);
1351 bfad_pci_uninit(pdev, bfad);
1352 out_pci_init_failure:
1353 kfree(bfad->trcmod);
1354 out_alloc_trace_failure:
1355 kfree(bfad);
1356 out:
1357 return error;
1358 }
1359
1360 /*
1361 * PCI remove entry.
1362 */
1363 void
1364 bfad_pci_remove(struct pci_dev *pdev)
1365 {
1366 struct bfad_s *bfad = pci_get_drvdata(pdev);
1367 unsigned long flags;
1368
1369 bfa_trc(bfad, bfad->inst_no);
1370
1371 spin_lock_irqsave(&bfad->bfad_lock, flags);
1372 if (bfad->bfad_tsk != NULL) {
1373 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1374 kthread_stop(bfad->bfad_tsk);
1375 } else {
1376 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1377 }
1378
1379 /* Send Event BFAD_E_STOP */
1380 bfa_sm_send_event(bfad, BFAD_E_STOP);
1381
1382 /* Driver detach and dealloc mem */
1383 spin_lock_irqsave(&bfad->bfad_lock, flags);
1384 bfa_detach(&bfad->bfa);
1385 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1386 bfad_hal_mem_release(bfad);
1387
1388 /* Remove the debugfs node for this bfad */
1389 kfree(bfad->regdata);
1390 bfad_debugfs_exit(&bfad->pport);
1391
1392 /* Cleaning the BFAD instance */
1393 mutex_lock(&bfad_mutex);
1394 bfad_inst--;
1395 list_del(&bfad->list_entry);
1396 mutex_unlock(&bfad_mutex);
1397 bfad_pci_uninit(pdev, bfad);
1398
1399 kfree(bfad->trcmod);
1400 kfree(bfad);
1401 }
1402
1403 /*
1404 * PCI Error Recovery entry, error detected.
1405 */
1406 static pci_ers_result_t
1407 bfad_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
1408 {
1409 struct bfad_s *bfad = pci_get_drvdata(pdev);
1410 unsigned long flags;
1411 pci_ers_result_t ret = PCI_ERS_RESULT_NONE;
1412
1413 dev_printk(KERN_ERR, &pdev->dev,
1414 "error detected state: %d - flags: 0x%x\n",
1415 state, bfad->bfad_flags);
1416
1417 switch (state) {
1418 case pci_channel_io_normal: /* non-fatal error */
1419 spin_lock_irqsave(&bfad->bfad_lock, flags);
1420 bfad->bfad_flags &= ~BFAD_EEH_BUSY;
1421 /* Suspend/fail all bfa operations */
1422 bfa_ioc_suspend(&bfad->bfa.ioc);
1423 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1424 del_timer_sync(&bfad->hal_tmo);
1425 ret = PCI_ERS_RESULT_CAN_RECOVER;
1426 break;
1427 case pci_channel_io_frozen: /* fatal error */
1428 init_completion(&bfad->comp);
1429 spin_lock_irqsave(&bfad->bfad_lock, flags);
1430 bfad->bfad_flags |= BFAD_EEH_BUSY;
1431 /* Suspend/fail all bfa operations */
1432 bfa_ioc_suspend(&bfad->bfa.ioc);
1433 bfa_fcs_stop(&bfad->bfa_fcs);
1434 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1435 wait_for_completion(&bfad->comp);
1436
1437 bfad_remove_intr(bfad);
1438 del_timer_sync(&bfad->hal_tmo);
1439 pci_disable_device(pdev);
1440 ret = PCI_ERS_RESULT_NEED_RESET;
1441 break;
1442 case pci_channel_io_perm_failure: /* PCI Card is DEAD */
1443 spin_lock_irqsave(&bfad->bfad_lock, flags);
1444 bfad->bfad_flags |= BFAD_EEH_BUSY |
1445 BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE;
1446 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1447
1448 /* If the error_detected handler is called with the reason
1449 * pci_channel_io_perm_failure - it will subsequently call
1450 * pci_remove() entry point to remove the pci device from the
1451 * system - So defer the cleanup to pci_remove(); cleaning up
1452 * here causes inconsistent state during pci_remove().
1453 */
1454 ret = PCI_ERS_RESULT_DISCONNECT;
1455 break;
1456 default:
1457 WARN_ON(1);
1458 }
1459
1460 return ret;
1461 }
1462
1463 static int restart_bfa(struct bfad_s *bfad)
1464 {
1465 unsigned long flags;
1466 struct pci_dev *pdev = bfad->pcidev;
1467
1468 bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg,
1469 &bfad->meminfo, &bfad->hal_pcidev);
1470
1471 /* Enable Interrupt and wait bfa_init completion */
1472 if (bfad_setup_intr(bfad)) {
1473 dev_printk(KERN_WARNING, &pdev->dev,
1474 "%s: bfad_setup_intr failed\n", bfad->pci_name);
1475 bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
1476 return -1;
1477 }
1478
1479 init_completion(&bfad->comp);
1480 spin_lock_irqsave(&bfad->bfad_lock, flags);
1481 bfa_iocfc_init(&bfad->bfa);
1482 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1483
1484 /* Set up interrupt handler for each vectors */
1485 if ((bfad->bfad_flags & BFAD_MSIX_ON) &&
1486 bfad_install_msix_handler(bfad))
1487 dev_printk(KERN_WARNING, &pdev->dev,
1488 "%s: install_msix failed.\n", bfad->pci_name);
1489
1490 bfad_init_timer(bfad);
1491 wait_for_completion(&bfad->comp);
1492 bfad_drv_start(bfad);
1493
1494 return 0;
1495 }
1496
1497 /*
1498 * PCI Error Recovery entry, re-initialize the chip.
1499 */
1500 static pci_ers_result_t
1501 bfad_pci_slot_reset(struct pci_dev *pdev)
1502 {
1503 struct bfad_s *bfad = pci_get_drvdata(pdev);
1504 u8 byte;
1505 int rc;
1506
1507 dev_printk(KERN_ERR, &pdev->dev,
1508 "bfad_pci_slot_reset flags: 0x%x\n", bfad->bfad_flags);
1509
1510 if (pci_enable_device(pdev)) {
1511 dev_printk(KERN_ERR, &pdev->dev, "Cannot re-enable "
1512 "PCI device after reset.\n");
1513 return PCI_ERS_RESULT_DISCONNECT;
1514 }
1515
1516 pci_restore_state(pdev);
1517
1518 /*
1519 * Read some byte (e.g. DMA max. payload size which can't
1520 * be 0xff any time) to make sure - we did not hit another PCI error
1521 * in the middle of recovery. If we did, then declare permanent failure.
1522 */
1523 pci_read_config_byte(pdev, 0x68, &byte);
1524 if (byte == 0xff) {
1525 dev_printk(KERN_ERR, &pdev->dev,
1526 "slot_reset failed ... got another PCI error !\n");
1527 goto out_disable_device;
1528 }
1529
1530 pci_save_state(pdev);
1531 pci_set_master(pdev);
1532
1533 rc = dma_set_mask_and_coherent(&bfad->pcidev->dev, DMA_BIT_MASK(64));
1534 if (rc)
1535 goto out_disable_device;
1536
1537 if (restart_bfa(bfad) == -1)
1538 goto out_disable_device;
1539
1540 dev_printk(KERN_WARNING, &pdev->dev,
1541 "slot_reset completed flags: 0x%x!\n", bfad->bfad_flags);
1542
1543 return PCI_ERS_RESULT_RECOVERED;
1544
1545 out_disable_device:
1546 pci_disable_device(pdev);
1547 return PCI_ERS_RESULT_DISCONNECT;
1548 }
1549
1550 static pci_ers_result_t
1551 bfad_pci_mmio_enabled(struct pci_dev *pdev)
1552 {
1553 unsigned long flags;
1554 struct bfad_s *bfad = pci_get_drvdata(pdev);
1555
1556 dev_printk(KERN_INFO, &pdev->dev, "mmio_enabled\n");
1557
1558 /* Fetch FW diagnostic information */
1559 bfa_ioc_debug_save_ftrc(&bfad->bfa.ioc);
1560
1561 /* Cancel all pending IOs */
1562 spin_lock_irqsave(&bfad->bfad_lock, flags);
1563 init_completion(&bfad->comp);
1564 bfa_fcs_stop(&bfad->bfa_fcs);
1565 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1566 wait_for_completion(&bfad->comp);
1567
1568 bfad_remove_intr(bfad);
1569 del_timer_sync(&bfad->hal_tmo);
1570 pci_disable_device(pdev);
1571
1572 return PCI_ERS_RESULT_NEED_RESET;
1573 }
1574
1575 static void
1576 bfad_pci_resume(struct pci_dev *pdev)
1577 {
1578 unsigned long flags;
1579 struct bfad_s *bfad = pci_get_drvdata(pdev);
1580
1581 dev_printk(KERN_WARNING, &pdev->dev, "resume\n");
1582
1583 /* wait until the link is online */
1584 bfad_rport_online_wait(bfad);
1585
1586 spin_lock_irqsave(&bfad->bfad_lock, flags);
1587 bfad->bfad_flags &= ~BFAD_EEH_BUSY;
1588 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1589 }
1590
1591 struct pci_device_id bfad_id_table[] = {
1592 {
1593 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1594 .device = BFA_PCI_DEVICE_ID_FC_8G2P,
1595 .subvendor = PCI_ANY_ID,
1596 .subdevice = PCI_ANY_ID,
1597 },
1598 {
1599 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1600 .device = BFA_PCI_DEVICE_ID_FC_8G1P,
1601 .subvendor = PCI_ANY_ID,
1602 .subdevice = PCI_ANY_ID,
1603 },
1604 {
1605 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1606 .device = BFA_PCI_DEVICE_ID_CT,
1607 .subvendor = PCI_ANY_ID,
1608 .subdevice = PCI_ANY_ID,
1609 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1610 .class_mask = ~0,
1611 },
1612 {
1613 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1614 .device = BFA_PCI_DEVICE_ID_CT_FC,
1615 .subvendor = PCI_ANY_ID,
1616 .subdevice = PCI_ANY_ID,
1617 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1618 .class_mask = ~0,
1619 },
1620 {
1621 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1622 .device = BFA_PCI_DEVICE_ID_CT2,
1623 .subvendor = PCI_ANY_ID,
1624 .subdevice = PCI_ANY_ID,
1625 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1626 .class_mask = ~0,
1627 },
1628
1629 {
1630 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1631 .device = BFA_PCI_DEVICE_ID_CT2_QUAD,
1632 .subvendor = PCI_ANY_ID,
1633 .subdevice = PCI_ANY_ID,
1634 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1635 .class_mask = ~0,
1636 },
1637 {0, 0},
1638 };
1639
1640 MODULE_DEVICE_TABLE(pci, bfad_id_table);
1641
1642 /*
1643 * PCI error recovery handlers.
1644 */
1645 static struct pci_error_handlers bfad_err_handler = {
1646 .error_detected = bfad_pci_error_detected,
1647 .slot_reset = bfad_pci_slot_reset,
1648 .mmio_enabled = bfad_pci_mmio_enabled,
1649 .resume = bfad_pci_resume,
1650 };
1651
1652 static struct pci_driver bfad_pci_driver = {
1653 .name = BFAD_DRIVER_NAME,
1654 .id_table = bfad_id_table,
1655 .probe = bfad_pci_probe,
1656 .remove = bfad_pci_remove,
1657 .err_handler = &bfad_err_handler,
1658 };
1659
1660 /*
1661 * Driver module init.
1662 */
1663 static int __init
1664 bfad_init(void)
1665 {
1666 int error = 0;
1667
1668 pr_info("QLogic BR-series BFA FC/FCOE SCSI driver - version: %s\n",
1669 BFAD_DRIVER_VERSION);
1670
1671 if (num_sgpgs > 0)
1672 num_sgpgs_parm = num_sgpgs;
1673
1674 error = bfad_im_module_init();
1675 if (error) {
1676 printk(KERN_WARNING "bfad_im_module_init failure\n");
1677 return -ENOMEM;
1678 }
1679
1680 if (strcmp(FCPI_NAME, " fcpim") == 0)
1681 supported_fc4s |= BFA_LPORT_ROLE_FCP_IM;
1682
1683 bfa_auto_recover = ioc_auto_recover;
1684 bfa_fcs_rport_set_del_timeout(rport_del_timeout);
1685 bfa_fcs_rport_set_max_logins(max_rport_logins);
1686
1687 error = pci_register_driver(&bfad_pci_driver);
1688 if (error) {
1689 printk(KERN_WARNING "pci_register_driver failure\n");
1690 goto ext;
1691 }
1692
1693 return 0;
1694
1695 ext:
1696 bfad_im_module_exit();
1697 return error;
1698 }
1699
1700 /*
1701 * Driver module exit.
1702 */
1703 static void __exit
1704 bfad_exit(void)
1705 {
1706 pci_unregister_driver(&bfad_pci_driver);
1707 bfad_im_module_exit();
1708 bfad_free_fwimg();
1709 }
1710
1711 /* Firmware handling */
1712 static void
1713 bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
1714 u32 *bfi_image_size, char *fw_name)
1715 {
1716 const struct firmware *fw;
1717
1718 if (request_firmware(&fw, fw_name, &pdev->dev)) {
1719 printk(KERN_ALERT "Can't locate firmware %s\n", fw_name);
1720 *bfi_image = NULL;
1721 goto out;
1722 }
1723
1724 *bfi_image = vmalloc(fw->size);
1725 if (NULL == *bfi_image) {
1726 printk(KERN_ALERT "Fail to allocate buffer for fw image "
1727 "size=%x!\n", (u32) fw->size);
1728 goto out;
1729 }
1730
1731 memcpy(*bfi_image, fw->data, fw->size);
1732 *bfi_image_size = fw->size/sizeof(u32);
1733 out:
1734 release_firmware(fw);
1735 }
1736
1737 static u32 *
1738 bfad_load_fwimg(struct pci_dev *pdev)
1739 {
1740 if (bfa_asic_id_ct2(pdev->device)) {
1741 if (bfi_image_ct2_size == 0)
1742 bfad_read_firmware(pdev, &bfi_image_ct2,
1743 &bfi_image_ct2_size, BFAD_FW_FILE_CT2);
1744 return bfi_image_ct2;
1745 } else if (bfa_asic_id_ct(pdev->device)) {
1746 if (bfi_image_ct_size == 0)
1747 bfad_read_firmware(pdev, &bfi_image_ct,
1748 &bfi_image_ct_size, BFAD_FW_FILE_CT);
1749 return bfi_image_ct;
1750 } else if (bfa_asic_id_cb(pdev->device)) {
1751 if (bfi_image_cb_size == 0)
1752 bfad_read_firmware(pdev, &bfi_image_cb,
1753 &bfi_image_cb_size, BFAD_FW_FILE_CB);
1754 return bfi_image_cb;
1755 }
1756
1757 return NULL;
1758 }
1759
1760 static void
1761 bfad_free_fwimg(void)
1762 {
1763 if (bfi_image_ct2_size && bfi_image_ct2)
1764 vfree(bfi_image_ct2);
1765 if (bfi_image_ct_size && bfi_image_ct)
1766 vfree(bfi_image_ct);
1767 if (bfi_image_cb_size && bfi_image_cb)
1768 vfree(bfi_image_cb);
1769 }
1770
1771 module_init(bfad_init);
1772 module_exit(bfad_exit);
1773 MODULE_LICENSE("GPL");
1774 MODULE_DESCRIPTION("QLogic BR-series Fibre Channel HBA Driver" BFAD_PROTO_NAME);
1775 MODULE_AUTHOR("QLogic Corporation");
1776 MODULE_VERSION(BFAD_DRIVER_VERSION);
Kernel DRM miscellaneous fixes and cross-tree changes