]>
Commit | Line | Data |
---|---|---|
7725ccfd | 1 | /* |
a36c61f9 | 2 | * Copyright (c) 2005-2010 Brocade Communications Systems, Inc. |
7725ccfd JH |
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 | ||
5fbe25c7 | 18 | /* |
7725ccfd JH |
19 | * bfad_im.c Linux driver IM module. |
20 | */ | |
21 | ||
09703660 PG |
22 | #include <linux/export.h> |
23 | ||
7725ccfd JH |
24 | #include "bfad_drv.h" |
25 | #include "bfad_im.h" | |
a36c61f9 | 26 | #include "bfa_fcs.h" |
7725ccfd JH |
27 | |
28 | BFA_TRC_FILE(LDRV, IM); | |
29 | ||
30 | DEFINE_IDR(bfad_im_port_index); | |
31 | struct scsi_transport_template *bfad_im_scsi_transport_template; | |
b504293f | 32 | struct scsi_transport_template *bfad_im_scsi_vport_transport_template; |
7725ccfd | 33 | static void bfad_im_itnim_work_handler(struct work_struct *work); |
f281233d | 34 | static int bfad_im_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmnd); |
7725ccfd | 35 | static int bfad_im_slave_alloc(struct scsi_device *sdev); |
a36c61f9 KG |
36 | static void bfad_im_fc_rport_add(struct bfad_im_port_s *im_port, |
37 | struct bfad_itnim_s *itnim); | |
7725ccfd JH |
38 | |
39 | void | |
40 | bfa_cb_ioim_done(void *drv, struct bfad_ioim_s *dio, | |
41 | enum bfi_ioim_status io_status, u8 scsi_status, | |
42 | int sns_len, u8 *sns_info, s32 residue) | |
43 | { | |
44 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio; | |
45 | struct bfad_s *bfad = drv; | |
46 | struct bfad_itnim_data_s *itnim_data; | |
47 | struct bfad_itnim_s *itnim; | |
95aa060d | 48 | u8 host_status = DID_OK; |
7725ccfd JH |
49 | |
50 | switch (io_status) { | |
51 | case BFI_IOIM_STS_OK: | |
52 | bfa_trc(bfad, scsi_status); | |
7725ccfd JH |
53 | scsi_set_resid(cmnd, 0); |
54 | ||
55 | if (sns_len > 0) { | |
56 | bfa_trc(bfad, sns_len); | |
57 | if (sns_len > SCSI_SENSE_BUFFERSIZE) | |
58 | sns_len = SCSI_SENSE_BUFFERSIZE; | |
59 | memcpy(cmnd->sense_buffer, sns_info, sns_len); | |
60 | } | |
a36c61f9 | 61 | |
95aa060d KG |
62 | if (residue > 0) { |
63 | bfa_trc(bfad, residue); | |
7725ccfd | 64 | scsi_set_resid(cmnd, residue); |
95aa060d KG |
65 | if (!sns_len && (scsi_status == SAM_STAT_GOOD) && |
66 | (scsi_bufflen(cmnd) - residue) < | |
67 | cmnd->underflow) { | |
68 | bfa_trc(bfad, 0); | |
69 | host_status = DID_ERROR; | |
70 | } | |
71 | } | |
72 | cmnd->result = ScsiResult(host_status, scsi_status); | |
73 | ||
7725ccfd JH |
74 | break; |
75 | ||
7725ccfd | 76 | case BFI_IOIM_STS_TIMEDOUT: |
c60b7b12 HR |
77 | host_status = DID_TIME_OUT; |
78 | cmnd->result = ScsiResult(host_status, 0); | |
79 | break; | |
7725ccfd | 80 | case BFI_IOIM_STS_PATHTOV: |
c60b7b12 HR |
81 | host_status = DID_TRANSPORT_DISRUPTED; |
82 | cmnd->result = ScsiResult(host_status, 0); | |
83 | break; | |
7725ccfd | 84 | default: |
a36c61f9 KG |
85 | host_status = DID_ERROR; |
86 | cmnd->result = ScsiResult(host_status, 0); | |
7725ccfd JH |
87 | } |
88 | ||
89 | /* Unmap DMA, if host is NULL, it means a scsi passthru cmd */ | |
90 | if (cmnd->device->host != NULL) | |
91 | scsi_dma_unmap(cmnd); | |
92 | ||
93 | cmnd->host_scribble = NULL; | |
94 | bfa_trc(bfad, cmnd->result); | |
95 | ||
96 | itnim_data = cmnd->device->hostdata; | |
97 | if (itnim_data) { | |
98 | itnim = itnim_data->itnim; | |
99 | if (!cmnd->result && itnim && | |
100 | (bfa_lun_queue_depth > cmnd->device->queue_depth)) { | |
101 | /* Queue depth adjustment for good status completion */ | |
f16a1750 | 102 | bfad_ramp_up_qdepth(itnim, cmnd->device); |
7725ccfd JH |
103 | } else if (cmnd->result == SAM_STAT_TASK_SET_FULL && itnim) { |
104 | /* qfull handling */ | |
f16a1750 | 105 | bfad_handle_qfull(itnim, cmnd->device); |
7725ccfd JH |
106 | } |
107 | } | |
108 | ||
109 | cmnd->scsi_done(cmnd); | |
110 | } | |
111 | ||
112 | void | |
113 | bfa_cb_ioim_good_comp(void *drv, struct bfad_ioim_s *dio) | |
114 | { | |
115 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio; | |
116 | struct bfad_itnim_data_s *itnim_data; | |
117 | struct bfad_itnim_s *itnim; | |
118 | ||
119 | cmnd->result = ScsiResult(DID_OK, SCSI_STATUS_GOOD); | |
120 | ||
121 | /* Unmap DMA, if host is NULL, it means a scsi passthru cmd */ | |
122 | if (cmnd->device->host != NULL) | |
123 | scsi_dma_unmap(cmnd); | |
124 | ||
125 | cmnd->host_scribble = NULL; | |
126 | ||
127 | /* Queue depth adjustment */ | |
128 | if (bfa_lun_queue_depth > cmnd->device->queue_depth) { | |
129 | itnim_data = cmnd->device->hostdata; | |
130 | if (itnim_data) { | |
131 | itnim = itnim_data->itnim; | |
132 | if (itnim) | |
f16a1750 | 133 | bfad_ramp_up_qdepth(itnim, cmnd->device); |
7725ccfd JH |
134 | } |
135 | } | |
136 | ||
137 | cmnd->scsi_done(cmnd); | |
138 | } | |
139 | ||
140 | void | |
141 | bfa_cb_ioim_abort(void *drv, struct bfad_ioim_s *dio) | |
142 | { | |
143 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio; | |
144 | struct bfad_s *bfad = drv; | |
145 | ||
146 | cmnd->result = ScsiResult(DID_ERROR, 0); | |
147 | ||
148 | /* Unmap DMA, if host is NULL, it means a scsi passthru cmd */ | |
149 | if (cmnd->device->host != NULL) | |
150 | scsi_dma_unmap(cmnd); | |
151 | ||
152 | bfa_trc(bfad, cmnd->result); | |
153 | cmnd->host_scribble = NULL; | |
154 | } | |
155 | ||
156 | void | |
157 | bfa_cb_tskim_done(void *bfad, struct bfad_tskim_s *dtsk, | |
158 | enum bfi_tskim_status tsk_status) | |
159 | { | |
160 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dtsk; | |
161 | wait_queue_head_t *wq; | |
162 | ||
163 | cmnd->SCp.Status |= tsk_status << 1; | |
164 | set_bit(IO_DONE_BIT, (unsigned long *)&cmnd->SCp.Status); | |
165 | wq = (wait_queue_head_t *) cmnd->SCp.ptr; | |
166 | cmnd->SCp.ptr = NULL; | |
167 | ||
168 | if (wq) | |
169 | wake_up(wq); | |
170 | } | |
171 | ||
5fbe25c7 | 172 | /* |
7725ccfd JH |
173 | * Scsi_Host_template SCSI host template |
174 | */ | |
5fbe25c7 | 175 | /* |
7725ccfd JH |
176 | * Scsi_Host template entry, returns BFAD PCI info. |
177 | */ | |
178 | static const char * | |
179 | bfad_im_info(struct Scsi_Host *shost) | |
180 | { | |
181 | static char bfa_buf[256]; | |
182 | struct bfad_im_port_s *im_port = | |
183 | (struct bfad_im_port_s *) shost->hostdata[0]; | |
a36c61f9 | 184 | struct bfad_s *bfad = im_port->bfad; |
7725ccfd JH |
185 | |
186 | memset(bfa_buf, 0, sizeof(bfa_buf)); | |
75332a70 KG |
187 | snprintf(bfa_buf, sizeof(bfa_buf), |
188 | "Brocade FC/FCOE Adapter, " "hwpath: %s driver: %s", | |
189 | bfad->pci_name, BFAD_DRIVER_VERSION); | |
a36c61f9 | 190 | |
7725ccfd JH |
191 | return bfa_buf; |
192 | } | |
193 | ||
5fbe25c7 | 194 | /* |
7725ccfd JH |
195 | * Scsi_Host template entry, aborts the specified SCSI command. |
196 | * | |
197 | * Returns: SUCCESS or FAILED. | |
198 | */ | |
199 | static int | |
200 | bfad_im_abort_handler(struct scsi_cmnd *cmnd) | |
201 | { | |
202 | struct Scsi_Host *shost = cmnd->device->host; | |
203 | struct bfad_im_port_s *im_port = | |
204 | (struct bfad_im_port_s *) shost->hostdata[0]; | |
205 | struct bfad_s *bfad = im_port->bfad; | |
206 | struct bfa_ioim_s *hal_io; | |
207 | unsigned long flags; | |
208 | u32 timeout; | |
209 | int rc = FAILED; | |
210 | ||
211 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
212 | hal_io = (struct bfa_ioim_s *) cmnd->host_scribble; | |
213 | if (!hal_io) { | |
9e03aa2f | 214 | /* IO has been completed, return success */ |
7725ccfd JH |
215 | rc = SUCCESS; |
216 | goto out; | |
217 | } | |
218 | if (hal_io->dio != (struct bfad_ioim_s *) cmnd) { | |
219 | rc = FAILED; | |
220 | goto out; | |
221 | } | |
222 | ||
223 | bfa_trc(bfad, hal_io->iotag); | |
88166242 JH |
224 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
225 | "scsi%d: abort cmnd %p iotag %x\n", | |
7725ccfd | 226 | im_port->shost->host_no, cmnd, hal_io->iotag); |
a36c61f9 | 227 | (void) bfa_ioim_abort(hal_io); |
7725ccfd JH |
228 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); |
229 | ||
230 | /* Need to wait until the command get aborted */ | |
231 | timeout = 10; | |
232 | while ((struct bfa_ioim_s *) cmnd->host_scribble == hal_io) { | |
233 | set_current_state(TASK_UNINTERRUPTIBLE); | |
234 | schedule_timeout(timeout); | |
235 | if (timeout < 4 * HZ) | |
236 | timeout *= 2; | |
237 | } | |
238 | ||
239 | cmnd->scsi_done(cmnd); | |
240 | bfa_trc(bfad, hal_io->iotag); | |
88166242 | 241 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
a36c61f9 | 242 | "scsi%d: complete abort 0x%p iotag 0x%x\n", |
7725ccfd JH |
243 | im_port->shost->host_no, cmnd, hal_io->iotag); |
244 | return SUCCESS; | |
245 | out: | |
246 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
247 | return rc; | |
248 | } | |
249 | ||
250 | static bfa_status_t | |
251 | bfad_im_target_reset_send(struct bfad_s *bfad, struct scsi_cmnd *cmnd, | |
252 | struct bfad_itnim_s *itnim) | |
253 | { | |
254 | struct bfa_tskim_s *tskim; | |
255 | struct bfa_itnim_s *bfa_itnim; | |
256 | bfa_status_t rc = BFA_STATUS_OK; | |
f314878a | 257 | struct scsi_lun scsilun; |
7725ccfd | 258 | |
7725ccfd JH |
259 | tskim = bfa_tskim_alloc(&bfad->bfa, (struct bfad_tskim_s *) cmnd); |
260 | if (!tskim) { | |
88166242 | 261 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, |
a36c61f9 | 262 | "target reset, fail to allocate tskim\n"); |
7725ccfd JH |
263 | rc = BFA_STATUS_FAILED; |
264 | goto out; | |
265 | } | |
266 | ||
267 | /* | |
268 | * Set host_scribble to NULL to avoid aborting a task command if | |
269 | * happens. | |
270 | */ | |
271 | cmnd->host_scribble = NULL; | |
272 | cmnd->SCp.Status = 0; | |
273 | bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim->fcs_itnim); | |
f314878a MZ |
274 | memset(&scsilun, 0, sizeof(scsilun)); |
275 | bfa_tskim_start(tskim, bfa_itnim, scsilun, | |
7725ccfd JH |
276 | FCP_TM_TARGET_RESET, BFAD_TARGET_RESET_TMO); |
277 | out: | |
278 | return rc; | |
279 | } | |
280 | ||
5fbe25c7 | 281 | /* |
7725ccfd JH |
282 | * Scsi_Host template entry, resets a LUN and abort its all commands. |
283 | * | |
284 | * Returns: SUCCESS or FAILED. | |
285 | * | |
286 | */ | |
287 | static int | |
288 | bfad_im_reset_lun_handler(struct scsi_cmnd *cmnd) | |
289 | { | |
290 | struct Scsi_Host *shost = cmnd->device->host; | |
291 | struct bfad_im_port_s *im_port = | |
292 | (struct bfad_im_port_s *) shost->hostdata[0]; | |
293 | struct bfad_itnim_data_s *itnim_data = cmnd->device->hostdata; | |
294 | struct bfad_s *bfad = im_port->bfad; | |
295 | struct bfa_tskim_s *tskim; | |
296 | struct bfad_itnim_s *itnim; | |
297 | struct bfa_itnim_s *bfa_itnim; | |
6d154db6 | 298 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq); |
7725ccfd JH |
299 | int rc = SUCCESS; |
300 | unsigned long flags; | |
301 | enum bfi_tskim_status task_status; | |
f314878a | 302 | struct scsi_lun scsilun; |
7725ccfd JH |
303 | |
304 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
305 | itnim = itnim_data->itnim; | |
306 | if (!itnim) { | |
307 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
308 | rc = FAILED; | |
309 | goto out; | |
310 | } | |
311 | ||
312 | tskim = bfa_tskim_alloc(&bfad->bfa, (struct bfad_tskim_s *) cmnd); | |
313 | if (!tskim) { | |
88166242 | 314 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, |
7725ccfd JH |
315 | "LUN reset, fail to allocate tskim"); |
316 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
317 | rc = FAILED; | |
318 | goto out; | |
319 | } | |
320 | ||
5fbe25c7 | 321 | /* |
7725ccfd JH |
322 | * Set host_scribble to NULL to avoid aborting a task command |
323 | * if happens. | |
324 | */ | |
325 | cmnd->host_scribble = NULL; | |
326 | cmnd->SCp.ptr = (char *)&wq; | |
327 | cmnd->SCp.Status = 0; | |
328 | bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim->fcs_itnim); | |
f314878a MZ |
329 | int_to_scsilun(cmnd->device->lun, &scsilun); |
330 | bfa_tskim_start(tskim, bfa_itnim, scsilun, | |
7725ccfd JH |
331 | FCP_TM_LUN_RESET, BFAD_LUN_RESET_TMO); |
332 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
333 | ||
334 | wait_event(wq, test_bit(IO_DONE_BIT, | |
335 | (unsigned long *)&cmnd->SCp.Status)); | |
336 | ||
337 | task_status = cmnd->SCp.Status >> 1; | |
338 | if (task_status != BFI_TSKIM_STS_OK) { | |
88166242 | 339 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, |
a36c61f9 | 340 | "LUN reset failure, status: %d\n", task_status); |
7725ccfd JH |
341 | rc = FAILED; |
342 | } | |
343 | ||
344 | out: | |
345 | return rc; | |
346 | } | |
347 | ||
5fbe25c7 | 348 | /* |
7725ccfd JH |
349 | * Scsi_Host template entry, resets the bus and abort all commands. |
350 | */ | |
351 | static int | |
352 | bfad_im_reset_bus_handler(struct scsi_cmnd *cmnd) | |
353 | { | |
354 | struct Scsi_Host *shost = cmnd->device->host; | |
355 | struct bfad_im_port_s *im_port = | |
356 | (struct bfad_im_port_s *) shost->hostdata[0]; | |
357 | struct bfad_s *bfad = im_port->bfad; | |
358 | struct bfad_itnim_s *itnim; | |
359 | unsigned long flags; | |
360 | u32 i, rc, err_cnt = 0; | |
6d154db6 | 361 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq); |
7725ccfd JH |
362 | enum bfi_tskim_status task_status; |
363 | ||
364 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
365 | for (i = 0; i < MAX_FCP_TARGET; i++) { | |
f16a1750 | 366 | itnim = bfad_get_itnim(im_port, i); |
7725ccfd JH |
367 | if (itnim) { |
368 | cmnd->SCp.ptr = (char *)&wq; | |
369 | rc = bfad_im_target_reset_send(bfad, cmnd, itnim); | |
370 | if (rc != BFA_STATUS_OK) { | |
371 | err_cnt++; | |
372 | continue; | |
373 | } | |
374 | ||
375 | /* wait target reset to complete */ | |
376 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
377 | wait_event(wq, test_bit(IO_DONE_BIT, | |
378 | (unsigned long *)&cmnd->SCp.Status)); | |
379 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
380 | ||
381 | task_status = cmnd->SCp.Status >> 1; | |
382 | if (task_status != BFI_TSKIM_STS_OK) { | |
88166242 | 383 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, |
7725ccfd JH |
384 | "target reset failure," |
385 | " status: %d\n", task_status); | |
386 | err_cnt++; | |
387 | } | |
388 | } | |
389 | } | |
390 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
391 | ||
392 | if (err_cnt) | |
393 | return FAILED; | |
394 | ||
395 | return SUCCESS; | |
396 | } | |
397 | ||
5fbe25c7 | 398 | /* |
7725ccfd JH |
399 | * Scsi_Host template entry slave_destroy. |
400 | */ | |
401 | static void | |
402 | bfad_im_slave_destroy(struct scsi_device *sdev) | |
403 | { | |
404 | sdev->hostdata = NULL; | |
405 | return; | |
406 | } | |
407 | ||
5fbe25c7 | 408 | /* |
7725ccfd JH |
409 | * BFA FCS itnim callbacks |
410 | */ | |
411 | ||
5fbe25c7 | 412 | /* |
7725ccfd JH |
413 | * BFA FCS itnim alloc callback, after successful PRLI |
414 | * Context: Interrupt | |
415 | */ | |
416 | void | |
417 | bfa_fcb_itnim_alloc(struct bfad_s *bfad, struct bfa_fcs_itnim_s **itnim, | |
418 | struct bfad_itnim_s **itnim_drv) | |
419 | { | |
420 | *itnim_drv = kzalloc(sizeof(struct bfad_itnim_s), GFP_ATOMIC); | |
421 | if (*itnim_drv == NULL) | |
422 | return; | |
423 | ||
424 | (*itnim_drv)->im = bfad->im; | |
425 | *itnim = &(*itnim_drv)->fcs_itnim; | |
426 | (*itnim_drv)->state = ITNIM_STATE_NONE; | |
427 | ||
428 | /* | |
429 | * Initiaze the itnim_work | |
430 | */ | |
431 | INIT_WORK(&(*itnim_drv)->itnim_work, bfad_im_itnim_work_handler); | |
432 | bfad->bfad_flags |= BFAD_RPORT_ONLINE; | |
433 | } | |
434 | ||
5fbe25c7 | 435 | /* |
7725ccfd JH |
436 | * BFA FCS itnim free callback. |
437 | * Context: Interrupt. bfad_lock is held | |
438 | */ | |
439 | void | |
440 | bfa_fcb_itnim_free(struct bfad_s *bfad, struct bfad_itnim_s *itnim_drv) | |
441 | { | |
442 | struct bfad_port_s *port; | |
443 | wwn_t wwpn; | |
444 | u32 fcid; | |
445 | char wwpn_str[32], fcid_str[16]; | |
a36c61f9 | 446 | struct bfad_im_s *im = itnim_drv->im; |
7725ccfd JH |
447 | |
448 | /* online to free state transtion should not happen */ | |
d4b671c5 | 449 | WARN_ON(itnim_drv->state == ITNIM_STATE_ONLINE); |
7725ccfd JH |
450 | |
451 | itnim_drv->queue_work = 1; | |
452 | /* offline request is not yet done, use the same request to free */ | |
453 | if (itnim_drv->state == ITNIM_STATE_OFFLINE_PENDING) | |
454 | itnim_drv->queue_work = 0; | |
455 | ||
456 | itnim_drv->state = ITNIM_STATE_FREE; | |
457 | port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim); | |
458 | itnim_drv->im_port = port->im_port; | |
459 | wwpn = bfa_fcs_itnim_get_pwwn(&itnim_drv->fcs_itnim); | |
460 | fcid = bfa_fcs_itnim_get_fcid(&itnim_drv->fcs_itnim); | |
461 | wwn2str(wwpn_str, wwpn); | |
462 | fcid2str(fcid_str, fcid); | |
88166242 | 463 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
a36c61f9 | 464 | "ITNIM FREE scsi%d: FCID: %s WWPN: %s\n", |
7725ccfd JH |
465 | port->im_port->shost->host_no, |
466 | fcid_str, wwpn_str); | |
a36c61f9 KG |
467 | |
468 | /* ITNIM processing */ | |
469 | if (itnim_drv->queue_work) | |
470 | queue_work(im->drv_workq, &itnim_drv->itnim_work); | |
7725ccfd JH |
471 | } |
472 | ||
5fbe25c7 | 473 | /* |
7725ccfd JH |
474 | * BFA FCS itnim online callback. |
475 | * Context: Interrupt. bfad_lock is held | |
476 | */ | |
477 | void | |
478 | bfa_fcb_itnim_online(struct bfad_itnim_s *itnim_drv) | |
479 | { | |
480 | struct bfad_port_s *port; | |
a36c61f9 | 481 | struct bfad_im_s *im = itnim_drv->im; |
7725ccfd JH |
482 | |
483 | itnim_drv->bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim_drv->fcs_itnim); | |
484 | port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim); | |
485 | itnim_drv->state = ITNIM_STATE_ONLINE; | |
486 | itnim_drv->queue_work = 1; | |
487 | itnim_drv->im_port = port->im_port; | |
a36c61f9 KG |
488 | |
489 | /* ITNIM processing */ | |
490 | if (itnim_drv->queue_work) | |
491 | queue_work(im->drv_workq, &itnim_drv->itnim_work); | |
7725ccfd JH |
492 | } |
493 | ||
5fbe25c7 | 494 | /* |
7725ccfd JH |
495 | * BFA FCS itnim offline callback. |
496 | * Context: Interrupt. bfad_lock is held | |
497 | */ | |
498 | void | |
499 | bfa_fcb_itnim_offline(struct bfad_itnim_s *itnim_drv) | |
500 | { | |
501 | struct bfad_port_s *port; | |
502 | struct bfad_s *bfad; | |
a36c61f9 | 503 | struct bfad_im_s *im = itnim_drv->im; |
7725ccfd JH |
504 | |
505 | port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim); | |
506 | bfad = port->bfad; | |
507 | if ((bfad->pport.flags & BFAD_PORT_DELETE) || | |
508 | (port->flags & BFAD_PORT_DELETE)) { | |
509 | itnim_drv->state = ITNIM_STATE_OFFLINE; | |
510 | return; | |
511 | } | |
512 | itnim_drv->im_port = port->im_port; | |
513 | itnim_drv->state = ITNIM_STATE_OFFLINE_PENDING; | |
514 | itnim_drv->queue_work = 1; | |
7725ccfd | 515 | |
a36c61f9 KG |
516 | /* ITNIM processing */ |
517 | if (itnim_drv->queue_work) | |
518 | queue_work(im->drv_workq, &itnim_drv->itnim_work); | |
7725ccfd JH |
519 | } |
520 | ||
5fbe25c7 | 521 | /* |
7725ccfd JH |
522 | * Allocate a Scsi_Host for a port. |
523 | */ | |
524 | int | |
b504293f | 525 | bfad_im_scsi_host_alloc(struct bfad_s *bfad, struct bfad_im_port_s *im_port, |
a36c61f9 | 526 | struct device *dev) |
7725ccfd JH |
527 | { |
528 | int error = 1; | |
529 | ||
42b426ec | 530 | mutex_lock(&bfad_mutex); |
70a9755d TH |
531 | error = idr_alloc(&bfad_im_port_index, im_port, 0, 0, GFP_KERNEL); |
532 | if (error < 0) { | |
42b426ec | 533 | mutex_unlock(&bfad_mutex); |
70a9755d | 534 | printk(KERN_WARNING "idr_alloc failure\n"); |
7725ccfd JH |
535 | goto out; |
536 | } | |
70a9755d | 537 | im_port->idr_id = error; |
42b426ec JH |
538 | mutex_unlock(&bfad_mutex); |
539 | ||
f16a1750 | 540 | im_port->shost = bfad_scsi_host_alloc(im_port, bfad); |
7725ccfd JH |
541 | if (!im_port->shost) { |
542 | error = 1; | |
543 | goto out_free_idr; | |
544 | } | |
545 | ||
546 | im_port->shost->hostdata[0] = (unsigned long)im_port; | |
547 | im_port->shost->unique_id = im_port->idr_id; | |
548 | im_port->shost->this_id = -1; | |
549 | im_port->shost->max_id = MAX_FCP_TARGET; | |
550 | im_port->shost->max_lun = MAX_FCP_LUN; | |
551 | im_port->shost->max_cmd_len = 16; | |
552 | im_port->shost->can_queue = bfad->cfg_data.ioc_queue_depth; | |
b504293f JH |
553 | if (im_port->port->pvb_type == BFAD_PORT_PHYS_BASE) |
554 | im_port->shost->transportt = bfad_im_scsi_transport_template; | |
555 | else | |
556 | im_port->shost->transportt = | |
557 | bfad_im_scsi_vport_transport_template; | |
7725ccfd | 558 | |
c54d557c | 559 | error = scsi_add_host_with_dma(im_port->shost, dev, &bfad->pcidev->dev); |
7725ccfd | 560 | if (error) { |
b504293f | 561 | printk(KERN_WARNING "scsi_add_host failure %d\n", error); |
7725ccfd JH |
562 | goto out_fc_rel; |
563 | } | |
564 | ||
7725ccfd JH |
565 | return 0; |
566 | ||
567 | out_fc_rel: | |
568 | scsi_host_put(im_port->shost); | |
d9883548 | 569 | im_port->shost = NULL; |
7725ccfd | 570 | out_free_idr: |
42b426ec | 571 | mutex_lock(&bfad_mutex); |
7725ccfd | 572 | idr_remove(&bfad_im_port_index, im_port->idr_id); |
42b426ec | 573 | mutex_unlock(&bfad_mutex); |
7725ccfd JH |
574 | out: |
575 | return error; | |
576 | } | |
577 | ||
578 | void | |
579 | bfad_im_scsi_host_free(struct bfad_s *bfad, struct bfad_im_port_s *im_port) | |
580 | { | |
7725ccfd | 581 | bfa_trc(bfad, bfad->inst_no); |
88166242 | 582 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, "Free scsi%d\n", |
7725ccfd JH |
583 | im_port->shost->host_no); |
584 | ||
585 | fc_remove_host(im_port->shost); | |
586 | ||
587 | scsi_remove_host(im_port->shost); | |
588 | scsi_host_put(im_port->shost); | |
589 | ||
42b426ec | 590 | mutex_lock(&bfad_mutex); |
7725ccfd | 591 | idr_remove(&bfad_im_port_index, im_port->idr_id); |
42b426ec | 592 | mutex_unlock(&bfad_mutex); |
7725ccfd JH |
593 | } |
594 | ||
595 | static void | |
596 | bfad_im_port_delete_handler(struct work_struct *work) | |
597 | { | |
598 | struct bfad_im_port_s *im_port = | |
599 | container_of(work, struct bfad_im_port_s, port_delete_work); | |
600 | ||
b504293f JH |
601 | if (im_port->port->pvb_type != BFAD_PORT_PHYS_BASE) { |
602 | im_port->flags |= BFAD_PORT_DELETE; | |
603 | fc_vport_terminate(im_port->fc_vport); | |
604 | } | |
7725ccfd JH |
605 | } |
606 | ||
607 | bfa_status_t | |
608 | bfad_im_port_new(struct bfad_s *bfad, struct bfad_port_s *port) | |
609 | { | |
610 | int rc = BFA_STATUS_OK; | |
611 | struct bfad_im_port_s *im_port; | |
612 | ||
613 | im_port = kzalloc(sizeof(struct bfad_im_port_s), GFP_ATOMIC); | |
614 | if (im_port == NULL) { | |
615 | rc = BFA_STATUS_ENOMEM; | |
616 | goto ext; | |
617 | } | |
618 | port->im_port = im_port; | |
619 | im_port->port = port; | |
620 | im_port->bfad = bfad; | |
621 | ||
622 | INIT_WORK(&im_port->port_delete_work, bfad_im_port_delete_handler); | |
623 | INIT_LIST_HEAD(&im_port->itnim_mapped_list); | |
624 | INIT_LIST_HEAD(&im_port->binding_list); | |
625 | ||
626 | ext: | |
627 | return rc; | |
628 | } | |
629 | ||
630 | void | |
631 | bfad_im_port_delete(struct bfad_s *bfad, struct bfad_port_s *port) | |
632 | { | |
633 | struct bfad_im_port_s *im_port = port->im_port; | |
634 | ||
a36c61f9 | 635 | queue_work(bfad->im->drv_workq, |
7725ccfd JH |
636 | &im_port->port_delete_work); |
637 | } | |
638 | ||
639 | void | |
640 | bfad_im_port_clean(struct bfad_im_port_s *im_port) | |
641 | { | |
642 | struct bfad_fcp_binding *bp, *bp_new; | |
643 | unsigned long flags; | |
644 | struct bfad_s *bfad = im_port->bfad; | |
645 | ||
646 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
647 | list_for_each_entry_safe(bp, bp_new, &im_port->binding_list, | |
648 | list_entry) { | |
649 | list_del(&bp->list_entry); | |
650 | kfree(bp); | |
651 | } | |
652 | ||
653 | /* the itnim_mapped_list must be empty at this time */ | |
d4b671c5 | 654 | WARN_ON(!list_empty(&im_port->itnim_mapped_list)); |
7725ccfd JH |
655 | |
656 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
657 | } | |
658 | ||
7826f304 KG |
659 | static void bfad_aen_im_notify_handler(struct work_struct *work) |
660 | { | |
661 | struct bfad_im_s *im = | |
662 | container_of(work, struct bfad_im_s, aen_im_notify_work); | |
663 | struct bfa_aen_entry_s *aen_entry; | |
664 | struct bfad_s *bfad = im->bfad; | |
665 | struct Scsi_Host *shost = bfad->pport.im_port->shost; | |
666 | void *event_data; | |
667 | unsigned long flags; | |
668 | ||
669 | while (!list_empty(&bfad->active_aen_q)) { | |
670 | spin_lock_irqsave(&bfad->bfad_aen_spinlock, flags); | |
671 | bfa_q_deq(&bfad->active_aen_q, &aen_entry); | |
672 | spin_unlock_irqrestore(&bfad->bfad_aen_spinlock, flags); | |
673 | event_data = (char *)aen_entry + sizeof(struct list_head); | |
674 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
675 | sizeof(struct bfa_aen_entry_s) - | |
676 | sizeof(struct list_head), | |
677 | (char *)event_data, BFAD_NL_VENDOR_ID); | |
678 | spin_lock_irqsave(&bfad->bfad_aen_spinlock, flags); | |
679 | list_add_tail(&aen_entry->qe, &bfad->free_aen_q); | |
680 | spin_unlock_irqrestore(&bfad->bfad_aen_spinlock, flags); | |
681 | } | |
682 | } | |
683 | ||
7725ccfd JH |
684 | bfa_status_t |
685 | bfad_im_probe(struct bfad_s *bfad) | |
686 | { | |
687 | struct bfad_im_s *im; | |
7725ccfd JH |
688 | |
689 | im = kzalloc(sizeof(struct bfad_im_s), GFP_KERNEL); | |
a5254dbb DC |
690 | if (im == NULL) |
691 | return BFA_STATUS_ENOMEM; | |
7725ccfd JH |
692 | |
693 | bfad->im = im; | |
694 | im->bfad = bfad; | |
695 | ||
f16a1750 | 696 | if (bfad_thread_workq(bfad) != BFA_STATUS_OK) { |
7725ccfd | 697 | kfree(im); |
a5254dbb | 698 | return BFA_STATUS_FAILED; |
7725ccfd JH |
699 | } |
700 | ||
7826f304 | 701 | INIT_WORK(&im->aen_im_notify_work, bfad_aen_im_notify_handler); |
a5254dbb | 702 | return BFA_STATUS_OK; |
7725ccfd JH |
703 | } |
704 | ||
705 | void | |
706 | bfad_im_probe_undo(struct bfad_s *bfad) | |
707 | { | |
708 | if (bfad->im) { | |
f16a1750 | 709 | bfad_destroy_workq(bfad->im); |
7725ccfd JH |
710 | kfree(bfad->im); |
711 | bfad->im = NULL; | |
712 | } | |
713 | } | |
714 | ||
7725ccfd | 715 | struct Scsi_Host * |
f16a1750 | 716 | bfad_scsi_host_alloc(struct bfad_im_port_s *im_port, struct bfad_s *bfad) |
7725ccfd JH |
717 | { |
718 | struct scsi_host_template *sht; | |
719 | ||
720 | if (im_port->port->pvb_type == BFAD_PORT_PHYS_BASE) | |
721 | sht = &bfad_im_scsi_host_template; | |
722 | else | |
723 | sht = &bfad_im_vport_template; | |
724 | ||
61e62e21 KG |
725 | if (max_xfer_size != BFAD_MAX_SECTORS >> 1) |
726 | sht->max_sectors = max_xfer_size << 1; | |
727 | ||
7725ccfd JH |
728 | sht->sg_tablesize = bfad->cfg_data.io_max_sge; |
729 | ||
730 | return scsi_host_alloc(sht, sizeof(unsigned long)); | |
731 | } | |
732 | ||
733 | void | |
f16a1750 | 734 | bfad_scsi_host_free(struct bfad_s *bfad, struct bfad_im_port_s *im_port) |
7725ccfd | 735 | { |
b504293f JH |
736 | if (!(im_port->flags & BFAD_PORT_DELETE)) |
737 | flush_workqueue(bfad->im->drv_workq); | |
7725ccfd JH |
738 | bfad_im_scsi_host_free(im_port->bfad, im_port); |
739 | bfad_im_port_clean(im_port); | |
740 | kfree(im_port); | |
741 | } | |
742 | ||
743 | void | |
f16a1750 | 744 | bfad_destroy_workq(struct bfad_im_s *im) |
7725ccfd JH |
745 | { |
746 | if (im && im->drv_workq) { | |
a36c61f9 | 747 | flush_workqueue(im->drv_workq); |
7725ccfd JH |
748 | destroy_workqueue(im->drv_workq); |
749 | im->drv_workq = NULL; | |
750 | } | |
751 | } | |
752 | ||
753 | bfa_status_t | |
f16a1750 | 754 | bfad_thread_workq(struct bfad_s *bfad) |
7725ccfd JH |
755 | { |
756 | struct bfad_im_s *im = bfad->im; | |
757 | ||
758 | bfa_trc(bfad, 0); | |
a36c61f9 | 759 | snprintf(im->drv_workq_name, KOBJ_NAME_LEN, "bfad_wq_%d", |
7725ccfd JH |
760 | bfad->inst_no); |
761 | im->drv_workq = create_singlethread_workqueue(im->drv_workq_name); | |
762 | if (!im->drv_workq) | |
763 | return BFA_STATUS_FAILED; | |
764 | ||
765 | return BFA_STATUS_OK; | |
766 | } | |
767 | ||
5fbe25c7 | 768 | /* |
7725ccfd JH |
769 | * Scsi_Host template entry. |
770 | * | |
771 | * Description: | |
772 | * OS entry point to adjust the queue_depths on a per-device basis. | |
773 | * Called once per device during the bus scan. | |
774 | * Return non-zero if fails. | |
775 | */ | |
776 | static int | |
777 | bfad_im_slave_configure(struct scsi_device *sdev) | |
778 | { | |
c8b09f6f | 779 | scsi_adjust_queue_depth(sdev, bfa_lun_queue_depth); |
7725ccfd JH |
780 | return 0; |
781 | } | |
782 | ||
783 | struct scsi_host_template bfad_im_scsi_host_template = { | |
784 | .module = THIS_MODULE, | |
785 | .name = BFAD_DRIVER_NAME, | |
786 | .info = bfad_im_info, | |
787 | .queuecommand = bfad_im_queuecommand, | |
788 | .eh_abort_handler = bfad_im_abort_handler, | |
789 | .eh_device_reset_handler = bfad_im_reset_lun_handler, | |
790 | .eh_bus_reset_handler = bfad_im_reset_bus_handler, | |
791 | ||
792 | .slave_alloc = bfad_im_slave_alloc, | |
793 | .slave_configure = bfad_im_slave_configure, | |
794 | .slave_destroy = bfad_im_slave_destroy, | |
795 | ||
796 | .this_id = -1, | |
797 | .sg_tablesize = BFAD_IO_MAX_SGE, | |
798 | .cmd_per_lun = 3, | |
799 | .use_clustering = ENABLE_CLUSTERING, | |
800 | .shost_attrs = bfad_im_host_attrs, | |
61e62e21 | 801 | .max_sectors = BFAD_MAX_SECTORS, |
b85daafe | 802 | .vendor_id = BFA_PCI_VENDOR_ID_BROCADE, |
2ecb204d | 803 | .use_blk_tags = 1, |
7725ccfd JH |
804 | }; |
805 | ||
806 | struct scsi_host_template bfad_im_vport_template = { | |
807 | .module = THIS_MODULE, | |
808 | .name = BFAD_DRIVER_NAME, | |
809 | .info = bfad_im_info, | |
810 | .queuecommand = bfad_im_queuecommand, | |
811 | .eh_abort_handler = bfad_im_abort_handler, | |
812 | .eh_device_reset_handler = bfad_im_reset_lun_handler, | |
813 | .eh_bus_reset_handler = bfad_im_reset_bus_handler, | |
814 | ||
815 | .slave_alloc = bfad_im_slave_alloc, | |
816 | .slave_configure = bfad_im_slave_configure, | |
817 | .slave_destroy = bfad_im_slave_destroy, | |
818 | ||
819 | .this_id = -1, | |
820 | .sg_tablesize = BFAD_IO_MAX_SGE, | |
821 | .cmd_per_lun = 3, | |
822 | .use_clustering = ENABLE_CLUSTERING, | |
823 | .shost_attrs = bfad_im_vport_attrs, | |
61e62e21 | 824 | .max_sectors = BFAD_MAX_SECTORS, |
2ecb204d | 825 | .use_blk_tags = 1, |
7725ccfd JH |
826 | }; |
827 | ||
7725ccfd JH |
828 | bfa_status_t |
829 | bfad_im_module_init(void) | |
830 | { | |
831 | bfad_im_scsi_transport_template = | |
832 | fc_attach_transport(&bfad_im_fc_function_template); | |
833 | if (!bfad_im_scsi_transport_template) | |
834 | return BFA_STATUS_ENOMEM; | |
835 | ||
b504293f JH |
836 | bfad_im_scsi_vport_transport_template = |
837 | fc_attach_transport(&bfad_im_vport_fc_function_template); | |
838 | if (!bfad_im_scsi_vport_transport_template) { | |
839 | fc_release_transport(bfad_im_scsi_transport_template); | |
840 | return BFA_STATUS_ENOMEM; | |
841 | } | |
842 | ||
7725ccfd JH |
843 | return BFA_STATUS_OK; |
844 | } | |
845 | ||
846 | void | |
847 | bfad_im_module_exit(void) | |
848 | { | |
849 | if (bfad_im_scsi_transport_template) | |
850 | fc_release_transport(bfad_im_scsi_transport_template); | |
a36c61f9 | 851 | |
b504293f JH |
852 | if (bfad_im_scsi_vport_transport_template) |
853 | fc_release_transport(bfad_im_scsi_vport_transport_template); | |
7725ccfd JH |
854 | } |
855 | ||
7725ccfd | 856 | void |
f16a1750 | 857 | bfad_ramp_up_qdepth(struct bfad_itnim_s *itnim, struct scsi_device *sdev) |
7725ccfd JH |
858 | { |
859 | struct scsi_device *tmp_sdev; | |
860 | ||
861 | if (((jiffies - itnim->last_ramp_up_time) > | |
862 | BFA_QUEUE_FULL_RAMP_UP_TIME * HZ) && | |
863 | ((jiffies - itnim->last_queue_full_time) > | |
864 | BFA_QUEUE_FULL_RAMP_UP_TIME * HZ)) { | |
865 | shost_for_each_device(tmp_sdev, sdev->host) { | |
866 | if (bfa_lun_queue_depth > tmp_sdev->queue_depth) { | |
867 | if (tmp_sdev->id != sdev->id) | |
868 | continue; | |
609aa22f | 869 | scsi_adjust_queue_depth(tmp_sdev, |
609aa22f | 870 | tmp_sdev->queue_depth + 1); |
7725ccfd JH |
871 | |
872 | itnim->last_ramp_up_time = jiffies; | |
873 | } | |
874 | } | |
875 | } | |
876 | } | |
877 | ||
878 | void | |
f16a1750 | 879 | bfad_handle_qfull(struct bfad_itnim_s *itnim, struct scsi_device *sdev) |
7725ccfd JH |
880 | { |
881 | struct scsi_device *tmp_sdev; | |
882 | ||
883 | itnim->last_queue_full_time = jiffies; | |
884 | ||
885 | shost_for_each_device(tmp_sdev, sdev->host) { | |
886 | if (tmp_sdev->id != sdev->id) | |
887 | continue; | |
888 | scsi_track_queue_full(tmp_sdev, tmp_sdev->queue_depth - 1); | |
889 | } | |
890 | } | |
891 | ||
7725ccfd | 892 | struct bfad_itnim_s * |
f16a1750 | 893 | bfad_get_itnim(struct bfad_im_port_s *im_port, int id) |
7725ccfd JH |
894 | { |
895 | struct bfad_itnim_s *itnim = NULL; | |
896 | ||
897 | /* Search the mapped list for this target ID */ | |
898 | list_for_each_entry(itnim, &im_port->itnim_mapped_list, list_entry) { | |
899 | if (id == itnim->scsi_tgt_id) | |
900 | return itnim; | |
901 | } | |
902 | ||
903 | return NULL; | |
904 | } | |
905 | ||
5b7db7af KG |
906 | /* |
907 | * Function is invoked from the SCSI Host Template slave_alloc() entry point. | |
908 | * Has the logic to query the LUN Mask database to check if this LUN needs to | |
909 | * be made visible to the SCSI mid-layer or not. | |
910 | * | |
911 | * Returns BFA_STATUS_OK if this LUN needs to be added to the OS stack. | |
912 | * Returns -ENXIO to notify SCSI mid-layer to not add this LUN to the OS stack. | |
913 | */ | |
914 | static int | |
915 | bfad_im_check_if_make_lun_visible(struct scsi_device *sdev, | |
916 | struct fc_rport *rport) | |
917 | { | |
918 | struct bfad_itnim_data_s *itnim_data = | |
919 | (struct bfad_itnim_data_s *) rport->dd_data; | |
920 | struct bfa_s *bfa = itnim_data->itnim->bfa_itnim->bfa; | |
921 | struct bfa_rport_s *bfa_rport = itnim_data->itnim->bfa_itnim->rport; | |
922 | struct bfa_lun_mask_s *lun_list = bfa_get_lun_mask_list(bfa); | |
923 | int i = 0, ret = -ENXIO; | |
924 | ||
925 | for (i = 0; i < MAX_LUN_MASK_CFG; i++) { | |
926 | if (lun_list[i].state == BFA_IOIM_LUN_MASK_ACTIVE && | |
927 | scsilun_to_int(&lun_list[i].lun) == sdev->lun && | |
928 | lun_list[i].rp_tag == bfa_rport->rport_tag && | |
929 | lun_list[i].lp_tag == (u8)bfa_rport->rport_info.lp_tag) { | |
930 | ret = BFA_STATUS_OK; | |
931 | break; | |
932 | } | |
933 | } | |
934 | return ret; | |
935 | } | |
936 | ||
5fbe25c7 | 937 | /* |
7725ccfd JH |
938 | * Scsi_Host template entry slave_alloc |
939 | */ | |
940 | static int | |
941 | bfad_im_slave_alloc(struct scsi_device *sdev) | |
942 | { | |
943 | struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); | |
c6e23d83 JN |
944 | struct bfad_itnim_data_s *itnim_data; |
945 | struct bfa_s *bfa; | |
7725ccfd JH |
946 | |
947 | if (!rport || fc_remote_port_chkready(rport)) | |
948 | return -ENXIO; | |
949 | ||
c6e23d83 JN |
950 | itnim_data = (struct bfad_itnim_data_s *) rport->dd_data; |
951 | bfa = itnim_data->itnim->bfa_itnim->bfa; | |
952 | ||
5b7db7af KG |
953 | if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_ENABLED) { |
954 | /* | |
955 | * We should not mask LUN 0 - since this will translate | |
956 | * to no LUN / TARGET for SCSI ml resulting no scan. | |
957 | */ | |
958 | if (sdev->lun == 0) { | |
959 | sdev->sdev_bflags |= BLIST_NOREPORTLUN | | |
960 | BLIST_SPARSELUN; | |
961 | goto done; | |
962 | } | |
963 | ||
964 | /* | |
965 | * Query LUN Mask configuration - to expose this LUN | |
966 | * to the SCSI mid-layer or to mask it. | |
967 | */ | |
968 | if (bfad_im_check_if_make_lun_visible(sdev, rport) != | |
969 | BFA_STATUS_OK) | |
970 | return -ENXIO; | |
971 | } | |
972 | done: | |
7725ccfd JH |
973 | sdev->hostdata = rport->dd_data; |
974 | ||
975 | return 0; | |
976 | } | |
977 | ||
6192bd7c | 978 | u32 |
a36c61f9 KG |
979 | bfad_im_supported_speeds(struct bfa_s *bfa) |
980 | { | |
e0a08a30 | 981 | struct bfa_ioc_attr_s *ioc_attr; |
a36c61f9 KG |
982 | u32 supported_speed = 0; |
983 | ||
e0a08a30 JH |
984 | ioc_attr = kzalloc(sizeof(struct bfa_ioc_attr_s), GFP_KERNEL); |
985 | if (!ioc_attr) | |
986 | return 0; | |
987 | ||
f7f73812 | 988 | bfa_ioc_get_attr(&bfa->ioc, ioc_attr); |
8b070b4a KG |
989 | if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_16GBPS) |
990 | supported_speed |= FC_PORTSPEED_16GBIT | FC_PORTSPEED_8GBIT | | |
991 | FC_PORTSPEED_4GBIT | FC_PORTSPEED_2GBIT; | |
992 | else if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_8GBPS) { | |
e0a08a30 | 993 | if (ioc_attr->adapter_attr.is_mezz) { |
a36c61f9 KG |
994 | supported_speed |= FC_PORTSPEED_8GBIT | |
995 | FC_PORTSPEED_4GBIT | | |
996 | FC_PORTSPEED_2GBIT | FC_PORTSPEED_1GBIT; | |
997 | } else { | |
998 | supported_speed |= FC_PORTSPEED_8GBIT | | |
999 | FC_PORTSPEED_4GBIT | | |
1000 | FC_PORTSPEED_2GBIT; | |
1001 | } | |
e0a08a30 | 1002 | } else if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_4GBPS) { |
a36c61f9 KG |
1003 | supported_speed |= FC_PORTSPEED_4GBIT | FC_PORTSPEED_2GBIT | |
1004 | FC_PORTSPEED_1GBIT; | |
e0a08a30 | 1005 | } else if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_10GBPS) { |
a36c61f9 KG |
1006 | supported_speed |= FC_PORTSPEED_10GBIT; |
1007 | } | |
e0a08a30 | 1008 | kfree(ioc_attr); |
a36c61f9 KG |
1009 | return supported_speed; |
1010 | } | |
1011 | ||
7725ccfd | 1012 | void |
f16a1750 | 1013 | bfad_fc_host_init(struct bfad_im_port_s *im_port) |
7725ccfd JH |
1014 | { |
1015 | struct Scsi_Host *host = im_port->shost; | |
1016 | struct bfad_s *bfad = im_port->bfad; | |
1017 | struct bfad_port_s *port = im_port->port; | |
a36c61f9 | 1018 | char symname[BFA_SYMNAME_MAXLEN]; |
e0a08a30 | 1019 | struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(&bfad->bfa); |
7725ccfd JH |
1020 | |
1021 | fc_host_node_name(host) = | |
ba816ea8 | 1022 | cpu_to_be64((bfa_fcs_lport_get_nwwn(port->fcs_port))); |
7725ccfd | 1023 | fc_host_port_name(host) = |
ba816ea8 | 1024 | cpu_to_be64((bfa_fcs_lport_get_pwwn(port->fcs_port))); |
b504293f | 1025 | fc_host_max_npiv_vports(host) = bfa_lps_get_max_vport(&bfad->bfa); |
7725ccfd JH |
1026 | |
1027 | fc_host_supported_classes(host) = FC_COS_CLASS3; | |
1028 | ||
1029 | memset(fc_host_supported_fc4s(host), 0, | |
1030 | sizeof(fc_host_supported_fc4s(host))); | |
a36c61f9 | 1031 | if (supported_fc4s & BFA_LPORT_ROLE_FCP_IM) |
7725ccfd JH |
1032 | /* For FCP type 0x08 */ |
1033 | fc_host_supported_fc4s(host)[2] = 1; | |
7725ccfd JH |
1034 | /* For fibre channel services type 0x20 */ |
1035 | fc_host_supported_fc4s(host)[7] = 1; | |
1036 | ||
c6e23d83 | 1037 | strlcpy(symname, bfad->bfa_fcs.fabric.bport.port_cfg.sym_name.symname, |
a36c61f9 KG |
1038 | BFA_SYMNAME_MAXLEN); |
1039 | sprintf(fc_host_symbolic_name(host), "%s", symname); | |
7725ccfd | 1040 | |
a36c61f9 | 1041 | fc_host_supported_speeds(host) = bfad_im_supported_speeds(&bfad->bfa); |
5fbe25c7 | 1042 | fc_host_maxframe_size(host) = fcport->cfg.maxfrsize; |
7725ccfd JH |
1043 | } |
1044 | ||
1045 | static void | |
1046 | bfad_im_fc_rport_add(struct bfad_im_port_s *im_port, struct bfad_itnim_s *itnim) | |
1047 | { | |
1048 | struct fc_rport_identifiers rport_ids; | |
1049 | struct fc_rport *fc_rport; | |
1050 | struct bfad_itnim_data_s *itnim_data; | |
1051 | ||
1052 | rport_ids.node_name = | |
ba816ea8 | 1053 | cpu_to_be64(bfa_fcs_itnim_get_nwwn(&itnim->fcs_itnim)); |
7725ccfd | 1054 | rport_ids.port_name = |
ba816ea8 | 1055 | cpu_to_be64(bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim)); |
7725ccfd | 1056 | rport_ids.port_id = |
f16a1750 | 1057 | bfa_hton3b(bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim)); |
7725ccfd JH |
1058 | rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; |
1059 | ||
1060 | itnim->fc_rport = fc_rport = | |
1061 | fc_remote_port_add(im_port->shost, 0, &rport_ids); | |
1062 | ||
1063 | if (!fc_rport) | |
1064 | return; | |
1065 | ||
1066 | fc_rport->maxframe_size = | |
1067 | bfa_fcs_itnim_get_maxfrsize(&itnim->fcs_itnim); | |
1068 | fc_rport->supported_classes = bfa_fcs_itnim_get_cos(&itnim->fcs_itnim); | |
1069 | ||
1070 | itnim_data = fc_rport->dd_data; | |
1071 | itnim_data->itnim = itnim; | |
1072 | ||
1073 | rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; | |
1074 | ||
1075 | if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) | |
1076 | fc_remote_port_rolechg(fc_rport, rport_ids.roles); | |
1077 | ||
1078 | if ((fc_rport->scsi_target_id != -1) | |
1079 | && (fc_rport->scsi_target_id < MAX_FCP_TARGET)) | |
1080 | itnim->scsi_tgt_id = fc_rport->scsi_target_id; | |
1081 | ||
5b7db7af KG |
1082 | itnim->channel = fc_rport->channel; |
1083 | ||
7725ccfd JH |
1084 | return; |
1085 | } | |
1086 | ||
5fbe25c7 | 1087 | /* |
7725ccfd JH |
1088 | * Work queue handler using FC transport service |
1089 | * Context: kernel | |
1090 | */ | |
1091 | static void | |
1092 | bfad_im_itnim_work_handler(struct work_struct *work) | |
1093 | { | |
1094 | struct bfad_itnim_s *itnim = container_of(work, struct bfad_itnim_s, | |
1095 | itnim_work); | |
1096 | struct bfad_im_s *im = itnim->im; | |
1097 | struct bfad_s *bfad = im->bfad; | |
1098 | struct bfad_im_port_s *im_port; | |
1099 | unsigned long flags; | |
1100 | struct fc_rport *fc_rport; | |
1101 | wwn_t wwpn; | |
1102 | u32 fcid; | |
1103 | char wwpn_str[32], fcid_str[16]; | |
1104 | ||
1105 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1106 | im_port = itnim->im_port; | |
1107 | bfa_trc(bfad, itnim->state); | |
1108 | switch (itnim->state) { | |
1109 | case ITNIM_STATE_ONLINE: | |
1110 | if (!itnim->fc_rport) { | |
1111 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1112 | bfad_im_fc_rport_add(im_port, itnim); | |
1113 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1114 | wwpn = bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim); | |
1115 | fcid = bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim); | |
1116 | wwn2str(wwpn_str, wwpn); | |
1117 | fcid2str(fcid_str, fcid); | |
1118 | list_add_tail(&itnim->list_entry, | |
1119 | &im_port->itnim_mapped_list); | |
88166242 | 1120 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
a36c61f9 KG |
1121 | "ITNIM ONLINE Target: %d:0:%d " |
1122 | "FCID: %s WWPN: %s\n", | |
7725ccfd JH |
1123 | im_port->shost->host_no, |
1124 | itnim->scsi_tgt_id, | |
1125 | fcid_str, wwpn_str); | |
1126 | } else { | |
1127 | printk(KERN_WARNING | |
1128 | "%s: itnim %llx is already in online state\n", | |
f8ceafde | 1129 | __func__, |
7725ccfd JH |
1130 | bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim)); |
1131 | } | |
1132 | ||
1133 | break; | |
1134 | case ITNIM_STATE_OFFLINE_PENDING: | |
1135 | itnim->state = ITNIM_STATE_OFFLINE; | |
1136 | if (itnim->fc_rport) { | |
1137 | fc_rport = itnim->fc_rport; | |
1138 | ((struct bfad_itnim_data_s *) | |
1139 | fc_rport->dd_data)->itnim = NULL; | |
1140 | itnim->fc_rport = NULL; | |
1141 | if (!(im_port->port->flags & BFAD_PORT_DELETE)) { | |
1142 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1143 | fc_rport->dev_loss_tmo = | |
1144 | bfa_fcpim_path_tov_get(&bfad->bfa) + 1; | |
1145 | fc_remote_port_delete(fc_rport); | |
1146 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1147 | } | |
1148 | wwpn = bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim); | |
1149 | fcid = bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim); | |
1150 | wwn2str(wwpn_str, wwpn); | |
1151 | fcid2str(fcid_str, fcid); | |
1152 | list_del(&itnim->list_entry); | |
88166242 | 1153 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
a36c61f9 KG |
1154 | "ITNIM OFFLINE Target: %d:0:%d " |
1155 | "FCID: %s WWPN: %s\n", | |
7725ccfd JH |
1156 | im_port->shost->host_no, |
1157 | itnim->scsi_tgt_id, | |
1158 | fcid_str, wwpn_str); | |
1159 | } | |
1160 | break; | |
1161 | case ITNIM_STATE_FREE: | |
1162 | if (itnim->fc_rport) { | |
1163 | fc_rport = itnim->fc_rport; | |
1164 | ((struct bfad_itnim_data_s *) | |
1165 | fc_rport->dd_data)->itnim = NULL; | |
1166 | itnim->fc_rport = NULL; | |
1167 | if (!(im_port->port->flags & BFAD_PORT_DELETE)) { | |
1168 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1169 | fc_rport->dev_loss_tmo = | |
1170 | bfa_fcpim_path_tov_get(&bfad->bfa) + 1; | |
1171 | fc_remote_port_delete(fc_rport); | |
1172 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1173 | } | |
1174 | list_del(&itnim->list_entry); | |
1175 | } | |
1176 | ||
1177 | kfree(itnim); | |
1178 | break; | |
1179 | default: | |
d4b671c5 | 1180 | WARN_ON(1); |
7725ccfd JH |
1181 | break; |
1182 | } | |
1183 | ||
1184 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1185 | } | |
1186 | ||
5fbe25c7 | 1187 | /* |
7725ccfd JH |
1188 | * Scsi_Host template entry, queue a SCSI command to the BFAD. |
1189 | */ | |
1190 | static int | |
f281233d | 1191 | bfad_im_queuecommand_lck(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *)) |
7725ccfd JH |
1192 | { |
1193 | struct bfad_im_port_s *im_port = | |
1194 | (struct bfad_im_port_s *) cmnd->device->host->hostdata[0]; | |
1195 | struct bfad_s *bfad = im_port->bfad; | |
1196 | struct bfad_itnim_data_s *itnim_data = cmnd->device->hostdata; | |
1197 | struct bfad_itnim_s *itnim; | |
1198 | struct bfa_ioim_s *hal_io; | |
1199 | unsigned long flags; | |
1200 | int rc; | |
a36c61f9 | 1201 | int sg_cnt = 0; |
7725ccfd JH |
1202 | struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); |
1203 | ||
1204 | rc = fc_remote_port_chkready(rport); | |
1205 | if (rc) { | |
1206 | cmnd->result = rc; | |
1207 | done(cmnd); | |
1208 | return 0; | |
1209 | } | |
1210 | ||
881c1b3c KG |
1211 | if (bfad->bfad_flags & BFAD_EEH_BUSY) { |
1212 | if (bfad->bfad_flags & BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE) | |
1213 | cmnd->result = DID_NO_CONNECT << 16; | |
1214 | else | |
1215 | cmnd->result = DID_REQUEUE << 16; | |
1216 | done(cmnd); | |
1217 | return 0; | |
1218 | } | |
1219 | ||
7725ccfd | 1220 | sg_cnt = scsi_dma_map(cmnd); |
7725ccfd JH |
1221 | if (sg_cnt < 0) |
1222 | return SCSI_MLQUEUE_HOST_BUSY; | |
1223 | ||
1224 | cmnd->scsi_done = done; | |
1225 | ||
1226 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1227 | if (!(bfad->bfad_flags & BFAD_HAL_START_DONE)) { | |
1228 | printk(KERN_WARNING | |
1229 | "bfad%d, queuecommand %p %x failed, BFA stopped\n", | |
1230 | bfad->inst_no, cmnd, cmnd->cmnd[0]); | |
1231 | cmnd->result = ScsiResult(DID_NO_CONNECT, 0); | |
1232 | goto out_fail_cmd; | |
1233 | } | |
1234 | ||
a36c61f9 | 1235 | |
7725ccfd JH |
1236 | itnim = itnim_data->itnim; |
1237 | if (!itnim) { | |
1238 | cmnd->result = ScsiResult(DID_IMM_RETRY, 0); | |
1239 | goto out_fail_cmd; | |
1240 | } | |
1241 | ||
1242 | hal_io = bfa_ioim_alloc(&bfad->bfa, (struct bfad_ioim_s *) cmnd, | |
1243 | itnim->bfa_itnim, sg_cnt); | |
1244 | if (!hal_io) { | |
1245 | printk(KERN_WARNING "hal_io failure\n"); | |
1246 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1247 | scsi_dma_unmap(cmnd); | |
1248 | return SCSI_MLQUEUE_HOST_BUSY; | |
1249 | } | |
1250 | ||
1251 | cmnd->host_scribble = (char *)hal_io; | |
7725ccfd JH |
1252 | bfa_ioim_start(hal_io); |
1253 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1254 | ||
1255 | return 0; | |
1256 | ||
1257 | out_fail_cmd: | |
1258 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1259 | scsi_dma_unmap(cmnd); | |
1260 | if (done) | |
1261 | done(cmnd); | |
1262 | ||
1263 | return 0; | |
1264 | } | |
1265 | ||
f281233d JG |
1266 | static DEF_SCSI_QCMD(bfad_im_queuecommand) |
1267 | ||
7725ccfd | 1268 | void |
f16a1750 | 1269 | bfad_rport_online_wait(struct bfad_s *bfad) |
7725ccfd JH |
1270 | { |
1271 | int i; | |
1272 | int rport_delay = 10; | |
1273 | ||
1274 | for (i = 0; !(bfad->bfad_flags & BFAD_PORT_ONLINE) | |
a36c61f9 KG |
1275 | && i < bfa_linkup_delay; i++) { |
1276 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1277 | schedule_timeout(HZ); | |
1278 | } | |
7725ccfd JH |
1279 | |
1280 | if (bfad->bfad_flags & BFAD_PORT_ONLINE) { | |
1281 | rport_delay = rport_delay < bfa_linkup_delay ? | |
a36c61f9 | 1282 | rport_delay : bfa_linkup_delay; |
7725ccfd | 1283 | for (i = 0; !(bfad->bfad_flags & BFAD_RPORT_ONLINE) |
a36c61f9 KG |
1284 | && i < rport_delay; i++) { |
1285 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1286 | schedule_timeout(HZ); | |
1287 | } | |
7725ccfd | 1288 | |
a36c61f9 KG |
1289 | if (rport_delay > 0 && (bfad->bfad_flags & BFAD_RPORT_ONLINE)) { |
1290 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1291 | schedule_timeout(rport_delay * HZ); | |
1292 | } | |
7725ccfd JH |
1293 | } |
1294 | } | |
1295 | ||
1296 | int | |
f16a1750 | 1297 | bfad_get_linkup_delay(struct bfad_s *bfad) |
7725ccfd | 1298 | { |
a36c61f9 KG |
1299 | u8 nwwns = 0; |
1300 | wwn_t wwns[BFA_PREBOOT_BOOTLUN_MAX]; | |
1301 | int linkup_delay; | |
7725ccfd JH |
1302 | |
1303 | /* | |
1304 | * Querying for the boot target port wwns | |
1305 | * -- read from boot information in flash. | |
a36c61f9 KG |
1306 | * If nwwns > 0 => boot over SAN and set linkup_delay = 30 |
1307 | * else => local boot machine set linkup_delay = 0 | |
7725ccfd JH |
1308 | */ |
1309 | ||
15b64a83 | 1310 | bfa_iocfc_get_bootwwns(&bfad->bfa, &nwwns, wwns); |
7725ccfd | 1311 | |
a36c61f9 KG |
1312 | if (nwwns > 0) |
1313 | /* If Boot over SAN set linkup_delay = 30sec */ | |
1314 | linkup_delay = 30; | |
1315 | else | |
1316 | /* If local boot; no linkup_delay */ | |
1317 | linkup_delay = 0; | |
7725ccfd | 1318 | |
a36c61f9 | 1319 | return linkup_delay; |
7725ccfd | 1320 | } |