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Commit | Line | Data |
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7725ccfd | 1 | /* |
889d0d42 AG |
2 | * Copyright (c) 2005-2014 Brocade Communications Systems, Inc. |
3 | * Copyright (c) 2014- QLogic Corporation. | |
7725ccfd | 4 | * All rights reserved |
889d0d42 | 5 | * www.qlogic.com |
7725ccfd | 6 | * |
31e1d569 | 7 | * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter. |
7725ccfd JH |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify it | |
10 | * under the terms of the GNU General Public License (GPL) Version 2 as | |
11 | * published by the Free Software Foundation | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * General Public License for more details. | |
17 | */ | |
18 | ||
5fbe25c7 | 19 | /* |
7725ccfd JH |
20 | * bfad_im.c Linux driver IM module. |
21 | */ | |
22 | ||
09703660 PG |
23 | #include <linux/export.h> |
24 | ||
7725ccfd JH |
25 | #include "bfad_drv.h" |
26 | #include "bfad_im.h" | |
a36c61f9 | 27 | #include "bfa_fcs.h" |
7725ccfd JH |
28 | |
29 | BFA_TRC_FILE(LDRV, IM); | |
30 | ||
31 | DEFINE_IDR(bfad_im_port_index); | |
32 | struct scsi_transport_template *bfad_im_scsi_transport_template; | |
b504293f | 33 | struct scsi_transport_template *bfad_im_scsi_vport_transport_template; |
7725ccfd | 34 | static void bfad_im_itnim_work_handler(struct work_struct *work); |
f281233d | 35 | static int bfad_im_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmnd); |
7725ccfd | 36 | static int bfad_im_slave_alloc(struct scsi_device *sdev); |
a36c61f9 KG |
37 | static void bfad_im_fc_rport_add(struct bfad_im_port_s *im_port, |
38 | struct bfad_itnim_s *itnim); | |
7725ccfd JH |
39 | |
40 | void | |
41 | bfa_cb_ioim_done(void *drv, struct bfad_ioim_s *dio, | |
42 | enum bfi_ioim_status io_status, u8 scsi_status, | |
43 | int sns_len, u8 *sns_info, s32 residue) | |
44 | { | |
45 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio; | |
46 | struct bfad_s *bfad = drv; | |
47 | struct bfad_itnim_data_s *itnim_data; | |
48 | struct bfad_itnim_s *itnim; | |
95aa060d | 49 | u8 host_status = DID_OK; |
7725ccfd JH |
50 | |
51 | switch (io_status) { | |
52 | case BFI_IOIM_STS_OK: | |
53 | bfa_trc(bfad, scsi_status); | |
7725ccfd JH |
54 | scsi_set_resid(cmnd, 0); |
55 | ||
56 | if (sns_len > 0) { | |
57 | bfa_trc(bfad, sns_len); | |
58 | if (sns_len > SCSI_SENSE_BUFFERSIZE) | |
59 | sns_len = SCSI_SENSE_BUFFERSIZE; | |
60 | memcpy(cmnd->sense_buffer, sns_info, sns_len); | |
61 | } | |
a36c61f9 | 62 | |
95aa060d KG |
63 | if (residue > 0) { |
64 | bfa_trc(bfad, residue); | |
7725ccfd | 65 | scsi_set_resid(cmnd, residue); |
95aa060d KG |
66 | if (!sns_len && (scsi_status == SAM_STAT_GOOD) && |
67 | (scsi_bufflen(cmnd) - residue) < | |
68 | cmnd->underflow) { | |
69 | bfa_trc(bfad, 0); | |
70 | host_status = DID_ERROR; | |
71 | } | |
72 | } | |
73 | cmnd->result = ScsiResult(host_status, scsi_status); | |
74 | ||
7725ccfd JH |
75 | break; |
76 | ||
7725ccfd | 77 | case BFI_IOIM_STS_TIMEDOUT: |
c60b7b12 HR |
78 | host_status = DID_TIME_OUT; |
79 | cmnd->result = ScsiResult(host_status, 0); | |
80 | break; | |
7725ccfd | 81 | case BFI_IOIM_STS_PATHTOV: |
c60b7b12 HR |
82 | host_status = DID_TRANSPORT_DISRUPTED; |
83 | cmnd->result = ScsiResult(host_status, 0); | |
84 | break; | |
7725ccfd | 85 | default: |
a36c61f9 KG |
86 | host_status = DID_ERROR; |
87 | cmnd->result = ScsiResult(host_status, 0); | |
7725ccfd JH |
88 | } |
89 | ||
90 | /* Unmap DMA, if host is NULL, it means a scsi passthru cmd */ | |
91 | if (cmnd->device->host != NULL) | |
92 | scsi_dma_unmap(cmnd); | |
93 | ||
94 | cmnd->host_scribble = NULL; | |
95 | bfa_trc(bfad, cmnd->result); | |
96 | ||
97 | itnim_data = cmnd->device->hostdata; | |
98 | if (itnim_data) { | |
99 | itnim = itnim_data->itnim; | |
100 | if (!cmnd->result && itnim && | |
101 | (bfa_lun_queue_depth > cmnd->device->queue_depth)) { | |
102 | /* Queue depth adjustment for good status completion */ | |
f16a1750 | 103 | bfad_ramp_up_qdepth(itnim, cmnd->device); |
7725ccfd JH |
104 | } else if (cmnd->result == SAM_STAT_TASK_SET_FULL && itnim) { |
105 | /* qfull handling */ | |
f16a1750 | 106 | bfad_handle_qfull(itnim, cmnd->device); |
7725ccfd JH |
107 | } |
108 | } | |
109 | ||
110 | cmnd->scsi_done(cmnd); | |
111 | } | |
112 | ||
113 | void | |
114 | bfa_cb_ioim_good_comp(void *drv, struct bfad_ioim_s *dio) | |
115 | { | |
116 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio; | |
117 | struct bfad_itnim_data_s *itnim_data; | |
118 | struct bfad_itnim_s *itnim; | |
119 | ||
120 | cmnd->result = ScsiResult(DID_OK, SCSI_STATUS_GOOD); | |
121 | ||
122 | /* Unmap DMA, if host is NULL, it means a scsi passthru cmd */ | |
123 | if (cmnd->device->host != NULL) | |
124 | scsi_dma_unmap(cmnd); | |
125 | ||
126 | cmnd->host_scribble = NULL; | |
127 | ||
128 | /* Queue depth adjustment */ | |
129 | if (bfa_lun_queue_depth > cmnd->device->queue_depth) { | |
130 | itnim_data = cmnd->device->hostdata; | |
131 | if (itnim_data) { | |
132 | itnim = itnim_data->itnim; | |
133 | if (itnim) | |
f16a1750 | 134 | bfad_ramp_up_qdepth(itnim, cmnd->device); |
7725ccfd JH |
135 | } |
136 | } | |
137 | ||
138 | cmnd->scsi_done(cmnd); | |
139 | } | |
140 | ||
141 | void | |
142 | bfa_cb_ioim_abort(void *drv, struct bfad_ioim_s *dio) | |
143 | { | |
144 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio; | |
145 | struct bfad_s *bfad = drv; | |
146 | ||
147 | cmnd->result = ScsiResult(DID_ERROR, 0); | |
148 | ||
149 | /* Unmap DMA, if host is NULL, it means a scsi passthru cmd */ | |
150 | if (cmnd->device->host != NULL) | |
151 | scsi_dma_unmap(cmnd); | |
152 | ||
153 | bfa_trc(bfad, cmnd->result); | |
154 | cmnd->host_scribble = NULL; | |
155 | } | |
156 | ||
157 | void | |
158 | bfa_cb_tskim_done(void *bfad, struct bfad_tskim_s *dtsk, | |
159 | enum bfi_tskim_status tsk_status) | |
160 | { | |
161 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dtsk; | |
162 | wait_queue_head_t *wq; | |
163 | ||
164 | cmnd->SCp.Status |= tsk_status << 1; | |
165 | set_bit(IO_DONE_BIT, (unsigned long *)&cmnd->SCp.Status); | |
166 | wq = (wait_queue_head_t *) cmnd->SCp.ptr; | |
167 | cmnd->SCp.ptr = NULL; | |
168 | ||
169 | if (wq) | |
170 | wake_up(wq); | |
171 | } | |
172 | ||
5fbe25c7 | 173 | /* |
7725ccfd JH |
174 | * Scsi_Host_template SCSI host template |
175 | */ | |
5fbe25c7 | 176 | /* |
7725ccfd JH |
177 | * Scsi_Host template entry, returns BFAD PCI info. |
178 | */ | |
179 | static const char * | |
180 | bfad_im_info(struct Scsi_Host *shost) | |
181 | { | |
182 | static char bfa_buf[256]; | |
183 | struct bfad_im_port_s *im_port = | |
184 | (struct bfad_im_port_s *) shost->hostdata[0]; | |
a36c61f9 | 185 | struct bfad_s *bfad = im_port->bfad; |
7725ccfd JH |
186 | |
187 | memset(bfa_buf, 0, sizeof(bfa_buf)); | |
75332a70 | 188 | snprintf(bfa_buf, sizeof(bfa_buf), |
31e1d569 | 189 | "QLogic BR-series FC/FCOE Adapter, hwpath: %s driver: %s", |
75332a70 | 190 | bfad->pci_name, BFAD_DRIVER_VERSION); |
a36c61f9 | 191 | |
7725ccfd JH |
192 | return bfa_buf; |
193 | } | |
194 | ||
5fbe25c7 | 195 | /* |
7725ccfd JH |
196 | * Scsi_Host template entry, aborts the specified SCSI command. |
197 | * | |
198 | * Returns: SUCCESS or FAILED. | |
199 | */ | |
200 | static int | |
201 | bfad_im_abort_handler(struct scsi_cmnd *cmnd) | |
202 | { | |
203 | struct Scsi_Host *shost = cmnd->device->host; | |
204 | struct bfad_im_port_s *im_port = | |
205 | (struct bfad_im_port_s *) shost->hostdata[0]; | |
206 | struct bfad_s *bfad = im_port->bfad; | |
207 | struct bfa_ioim_s *hal_io; | |
208 | unsigned long flags; | |
209 | u32 timeout; | |
210 | int rc = FAILED; | |
211 | ||
212 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
213 | hal_io = (struct bfa_ioim_s *) cmnd->host_scribble; | |
214 | if (!hal_io) { | |
9e03aa2f | 215 | /* IO has been completed, return success */ |
7725ccfd JH |
216 | rc = SUCCESS; |
217 | goto out; | |
218 | } | |
219 | if (hal_io->dio != (struct bfad_ioim_s *) cmnd) { | |
220 | rc = FAILED; | |
221 | goto out; | |
222 | } | |
223 | ||
224 | bfa_trc(bfad, hal_io->iotag); | |
88166242 JH |
225 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
226 | "scsi%d: abort cmnd %p iotag %x\n", | |
7725ccfd | 227 | im_port->shost->host_no, cmnd, hal_io->iotag); |
a36c61f9 | 228 | (void) bfa_ioim_abort(hal_io); |
7725ccfd JH |
229 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); |
230 | ||
231 | /* Need to wait until the command get aborted */ | |
232 | timeout = 10; | |
233 | while ((struct bfa_ioim_s *) cmnd->host_scribble == hal_io) { | |
234 | set_current_state(TASK_UNINTERRUPTIBLE); | |
235 | schedule_timeout(timeout); | |
236 | if (timeout < 4 * HZ) | |
237 | timeout *= 2; | |
238 | } | |
239 | ||
240 | cmnd->scsi_done(cmnd); | |
241 | bfa_trc(bfad, hal_io->iotag); | |
88166242 | 242 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
a36c61f9 | 243 | "scsi%d: complete abort 0x%p iotag 0x%x\n", |
7725ccfd JH |
244 | im_port->shost->host_no, cmnd, hal_io->iotag); |
245 | return SUCCESS; | |
246 | out: | |
247 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
248 | return rc; | |
249 | } | |
250 | ||
251 | static bfa_status_t | |
252 | bfad_im_target_reset_send(struct bfad_s *bfad, struct scsi_cmnd *cmnd, | |
253 | struct bfad_itnim_s *itnim) | |
254 | { | |
255 | struct bfa_tskim_s *tskim; | |
256 | struct bfa_itnim_s *bfa_itnim; | |
257 | bfa_status_t rc = BFA_STATUS_OK; | |
f314878a | 258 | struct scsi_lun scsilun; |
7725ccfd | 259 | |
7725ccfd JH |
260 | tskim = bfa_tskim_alloc(&bfad->bfa, (struct bfad_tskim_s *) cmnd); |
261 | if (!tskim) { | |
88166242 | 262 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, |
a36c61f9 | 263 | "target reset, fail to allocate tskim\n"); |
7725ccfd JH |
264 | rc = BFA_STATUS_FAILED; |
265 | goto out; | |
266 | } | |
267 | ||
268 | /* | |
269 | * Set host_scribble to NULL to avoid aborting a task command if | |
270 | * happens. | |
271 | */ | |
272 | cmnd->host_scribble = NULL; | |
273 | cmnd->SCp.Status = 0; | |
274 | bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim->fcs_itnim); | |
3c3da12d AG |
275 | /* |
276 | * bfa_itnim can be NULL if the port gets disconnected and the bfa | |
277 | * and fcs layers have cleaned up their nexus with the targets and | |
278 | * the same has not been cleaned up by the shim | |
279 | */ | |
280 | if (bfa_itnim == NULL) { | |
281 | bfa_tskim_free(tskim); | |
282 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, | |
283 | "target reset, bfa_itnim is NULL\n"); | |
284 | rc = BFA_STATUS_FAILED; | |
285 | goto out; | |
286 | } | |
287 | ||
f314878a MZ |
288 | memset(&scsilun, 0, sizeof(scsilun)); |
289 | bfa_tskim_start(tskim, bfa_itnim, scsilun, | |
7725ccfd JH |
290 | FCP_TM_TARGET_RESET, BFAD_TARGET_RESET_TMO); |
291 | out: | |
292 | return rc; | |
293 | } | |
294 | ||
5fbe25c7 | 295 | /* |
7725ccfd JH |
296 | * Scsi_Host template entry, resets a LUN and abort its all commands. |
297 | * | |
298 | * Returns: SUCCESS or FAILED. | |
299 | * | |
300 | */ | |
301 | static int | |
302 | bfad_im_reset_lun_handler(struct scsi_cmnd *cmnd) | |
303 | { | |
304 | struct Scsi_Host *shost = cmnd->device->host; | |
305 | struct bfad_im_port_s *im_port = | |
306 | (struct bfad_im_port_s *) shost->hostdata[0]; | |
307 | struct bfad_itnim_data_s *itnim_data = cmnd->device->hostdata; | |
308 | struct bfad_s *bfad = im_port->bfad; | |
309 | struct bfa_tskim_s *tskim; | |
310 | struct bfad_itnim_s *itnim; | |
311 | struct bfa_itnim_s *bfa_itnim; | |
6d154db6 | 312 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq); |
7725ccfd JH |
313 | int rc = SUCCESS; |
314 | unsigned long flags; | |
315 | enum bfi_tskim_status task_status; | |
f314878a | 316 | struct scsi_lun scsilun; |
7725ccfd JH |
317 | |
318 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
319 | itnim = itnim_data->itnim; | |
320 | if (!itnim) { | |
321 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
322 | rc = FAILED; | |
323 | goto out; | |
324 | } | |
325 | ||
326 | tskim = bfa_tskim_alloc(&bfad->bfa, (struct bfad_tskim_s *) cmnd); | |
327 | if (!tskim) { | |
88166242 | 328 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, |
7725ccfd JH |
329 | "LUN reset, fail to allocate tskim"); |
330 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
331 | rc = FAILED; | |
332 | goto out; | |
333 | } | |
334 | ||
5fbe25c7 | 335 | /* |
7725ccfd JH |
336 | * Set host_scribble to NULL to avoid aborting a task command |
337 | * if happens. | |
338 | */ | |
339 | cmnd->host_scribble = NULL; | |
340 | cmnd->SCp.ptr = (char *)&wq; | |
341 | cmnd->SCp.Status = 0; | |
342 | bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim->fcs_itnim); | |
3c3da12d AG |
343 | /* |
344 | * bfa_itnim can be NULL if the port gets disconnected and the bfa | |
345 | * and fcs layers have cleaned up their nexus with the targets and | |
346 | * the same has not been cleaned up by the shim | |
347 | */ | |
348 | if (bfa_itnim == NULL) { | |
349 | bfa_tskim_free(tskim); | |
350 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, | |
351 | "lun reset, bfa_itnim is NULL\n"); | |
352 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
353 | rc = FAILED; | |
354 | goto out; | |
355 | } | |
f314878a MZ |
356 | int_to_scsilun(cmnd->device->lun, &scsilun); |
357 | bfa_tskim_start(tskim, bfa_itnim, scsilun, | |
7725ccfd JH |
358 | FCP_TM_LUN_RESET, BFAD_LUN_RESET_TMO); |
359 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
360 | ||
361 | wait_event(wq, test_bit(IO_DONE_BIT, | |
362 | (unsigned long *)&cmnd->SCp.Status)); | |
363 | ||
364 | task_status = cmnd->SCp.Status >> 1; | |
365 | if (task_status != BFI_TSKIM_STS_OK) { | |
88166242 | 366 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, |
a36c61f9 | 367 | "LUN reset failure, status: %d\n", task_status); |
7725ccfd JH |
368 | rc = FAILED; |
369 | } | |
370 | ||
371 | out: | |
372 | return rc; | |
373 | } | |
374 | ||
5fbe25c7 | 375 | /* |
1b7092f3 | 376 | * Scsi_Host template entry, resets the target and abort all commands. |
7725ccfd JH |
377 | */ |
378 | static int | |
1b7092f3 | 379 | bfad_im_reset_target_handler(struct scsi_cmnd *cmnd) |
7725ccfd JH |
380 | { |
381 | struct Scsi_Host *shost = cmnd->device->host; | |
1b7092f3 | 382 | struct scsi_target *starget = scsi_target(cmnd->device); |
7725ccfd JH |
383 | struct bfad_im_port_s *im_port = |
384 | (struct bfad_im_port_s *) shost->hostdata[0]; | |
385 | struct bfad_s *bfad = im_port->bfad; | |
386 | struct bfad_itnim_s *itnim; | |
387 | unsigned long flags; | |
1b7092f3 | 388 | u32 rc, rtn = FAILED; |
6d154db6 | 389 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq); |
7725ccfd JH |
390 | enum bfi_tskim_status task_status; |
391 | ||
392 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1b7092f3 HR |
393 | itnim = bfad_get_itnim(im_port, starget->id); |
394 | if (itnim) { | |
395 | cmnd->SCp.ptr = (char *)&wq; | |
396 | rc = bfad_im_target_reset_send(bfad, cmnd, itnim); | |
397 | if (rc == BFA_STATUS_OK) { | |
7725ccfd JH |
398 | /* wait target reset to complete */ |
399 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
400 | wait_event(wq, test_bit(IO_DONE_BIT, | |
401 | (unsigned long *)&cmnd->SCp.Status)); | |
402 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
403 | ||
404 | task_status = cmnd->SCp.Status >> 1; | |
1b7092f3 | 405 | if (task_status != BFI_TSKIM_STS_OK) |
88166242 | 406 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, |
7725ccfd JH |
407 | "target reset failure," |
408 | " status: %d\n", task_status); | |
1b7092f3 HR |
409 | else |
410 | rtn = SUCCESS; | |
7725ccfd JH |
411 | } |
412 | } | |
413 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
414 | ||
1b7092f3 | 415 | return rtn; |
7725ccfd JH |
416 | } |
417 | ||
5fbe25c7 | 418 | /* |
7725ccfd JH |
419 | * Scsi_Host template entry slave_destroy. |
420 | */ | |
421 | static void | |
422 | bfad_im_slave_destroy(struct scsi_device *sdev) | |
423 | { | |
424 | sdev->hostdata = NULL; | |
425 | return; | |
426 | } | |
427 | ||
5fbe25c7 | 428 | /* |
7725ccfd JH |
429 | * BFA FCS itnim callbacks |
430 | */ | |
431 | ||
5fbe25c7 | 432 | /* |
7725ccfd JH |
433 | * BFA FCS itnim alloc callback, after successful PRLI |
434 | * Context: Interrupt | |
435 | */ | |
4e51af9e | 436 | int |
7725ccfd JH |
437 | bfa_fcb_itnim_alloc(struct bfad_s *bfad, struct bfa_fcs_itnim_s **itnim, |
438 | struct bfad_itnim_s **itnim_drv) | |
439 | { | |
440 | *itnim_drv = kzalloc(sizeof(struct bfad_itnim_s), GFP_ATOMIC); | |
441 | if (*itnim_drv == NULL) | |
4e51af9e | 442 | return -ENOMEM; |
7725ccfd JH |
443 | |
444 | (*itnim_drv)->im = bfad->im; | |
445 | *itnim = &(*itnim_drv)->fcs_itnim; | |
446 | (*itnim_drv)->state = ITNIM_STATE_NONE; | |
447 | ||
448 | /* | |
449 | * Initiaze the itnim_work | |
450 | */ | |
451 | INIT_WORK(&(*itnim_drv)->itnim_work, bfad_im_itnim_work_handler); | |
452 | bfad->bfad_flags |= BFAD_RPORT_ONLINE; | |
4e51af9e | 453 | return 0; |
7725ccfd JH |
454 | } |
455 | ||
5fbe25c7 | 456 | /* |
7725ccfd JH |
457 | * BFA FCS itnim free callback. |
458 | * Context: Interrupt. bfad_lock is held | |
459 | */ | |
460 | void | |
461 | bfa_fcb_itnim_free(struct bfad_s *bfad, struct bfad_itnim_s *itnim_drv) | |
462 | { | |
463 | struct bfad_port_s *port; | |
464 | wwn_t wwpn; | |
465 | u32 fcid; | |
466 | char wwpn_str[32], fcid_str[16]; | |
a36c61f9 | 467 | struct bfad_im_s *im = itnim_drv->im; |
7725ccfd JH |
468 | |
469 | /* online to free state transtion should not happen */ | |
d4b671c5 | 470 | WARN_ON(itnim_drv->state == ITNIM_STATE_ONLINE); |
7725ccfd JH |
471 | |
472 | itnim_drv->queue_work = 1; | |
473 | /* offline request is not yet done, use the same request to free */ | |
474 | if (itnim_drv->state == ITNIM_STATE_OFFLINE_PENDING) | |
475 | itnim_drv->queue_work = 0; | |
476 | ||
477 | itnim_drv->state = ITNIM_STATE_FREE; | |
478 | port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim); | |
479 | itnim_drv->im_port = port->im_port; | |
480 | wwpn = bfa_fcs_itnim_get_pwwn(&itnim_drv->fcs_itnim); | |
481 | fcid = bfa_fcs_itnim_get_fcid(&itnim_drv->fcs_itnim); | |
482 | wwn2str(wwpn_str, wwpn); | |
483 | fcid2str(fcid_str, fcid); | |
88166242 | 484 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
a36c61f9 | 485 | "ITNIM FREE scsi%d: FCID: %s WWPN: %s\n", |
7725ccfd JH |
486 | port->im_port->shost->host_no, |
487 | fcid_str, wwpn_str); | |
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 online callback. |
496 | * Context: Interrupt. bfad_lock is held | |
497 | */ | |
498 | void | |
499 | bfa_fcb_itnim_online(struct bfad_itnim_s *itnim_drv) | |
500 | { | |
501 | struct bfad_port_s *port; | |
a36c61f9 | 502 | struct bfad_im_s *im = itnim_drv->im; |
7725ccfd JH |
503 | |
504 | itnim_drv->bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim_drv->fcs_itnim); | |
505 | port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim); | |
506 | itnim_drv->state = ITNIM_STATE_ONLINE; | |
507 | itnim_drv->queue_work = 1; | |
508 | itnim_drv->im_port = port->im_port; | |
a36c61f9 KG |
509 | |
510 | /* ITNIM processing */ | |
511 | if (itnim_drv->queue_work) | |
512 | queue_work(im->drv_workq, &itnim_drv->itnim_work); | |
7725ccfd JH |
513 | } |
514 | ||
5fbe25c7 | 515 | /* |
7725ccfd JH |
516 | * BFA FCS itnim offline callback. |
517 | * Context: Interrupt. bfad_lock is held | |
518 | */ | |
519 | void | |
520 | bfa_fcb_itnim_offline(struct bfad_itnim_s *itnim_drv) | |
521 | { | |
522 | struct bfad_port_s *port; | |
523 | struct bfad_s *bfad; | |
a36c61f9 | 524 | struct bfad_im_s *im = itnim_drv->im; |
7725ccfd JH |
525 | |
526 | port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim); | |
527 | bfad = port->bfad; | |
528 | if ((bfad->pport.flags & BFAD_PORT_DELETE) || | |
529 | (port->flags & BFAD_PORT_DELETE)) { | |
530 | itnim_drv->state = ITNIM_STATE_OFFLINE; | |
531 | return; | |
532 | } | |
533 | itnim_drv->im_port = port->im_port; | |
534 | itnim_drv->state = ITNIM_STATE_OFFLINE_PENDING; | |
535 | itnim_drv->queue_work = 1; | |
7725ccfd | 536 | |
a36c61f9 KG |
537 | /* ITNIM processing */ |
538 | if (itnim_drv->queue_work) | |
539 | queue_work(im->drv_workq, &itnim_drv->itnim_work); | |
7725ccfd JH |
540 | } |
541 | ||
5fbe25c7 | 542 | /* |
7725ccfd JH |
543 | * Allocate a Scsi_Host for a port. |
544 | */ | |
545 | int | |
b504293f | 546 | bfad_im_scsi_host_alloc(struct bfad_s *bfad, struct bfad_im_port_s *im_port, |
a36c61f9 | 547 | struct device *dev) |
7725ccfd | 548 | { |
48d83282 | 549 | struct bfad_im_port_pointer *im_portp; |
7725ccfd JH |
550 | int error = 1; |
551 | ||
42b426ec | 552 | mutex_lock(&bfad_mutex); |
70a9755d TH |
553 | error = idr_alloc(&bfad_im_port_index, im_port, 0, 0, GFP_KERNEL); |
554 | if (error < 0) { | |
42b426ec | 555 | mutex_unlock(&bfad_mutex); |
70a9755d | 556 | printk(KERN_WARNING "idr_alloc failure\n"); |
7725ccfd JH |
557 | goto out; |
558 | } | |
70a9755d | 559 | im_port->idr_id = error; |
42b426ec JH |
560 | mutex_unlock(&bfad_mutex); |
561 | ||
f16a1750 | 562 | im_port->shost = bfad_scsi_host_alloc(im_port, bfad); |
7725ccfd JH |
563 | if (!im_port->shost) { |
564 | error = 1; | |
565 | goto out_free_idr; | |
566 | } | |
567 | ||
48d83282 AB |
568 | im_portp = shost_priv(im_port->shost); |
569 | im_portp->p = im_port; | |
7725ccfd JH |
570 | im_port->shost->unique_id = im_port->idr_id; |
571 | im_port->shost->this_id = -1; | |
572 | im_port->shost->max_id = MAX_FCP_TARGET; | |
573 | im_port->shost->max_lun = MAX_FCP_LUN; | |
574 | im_port->shost->max_cmd_len = 16; | |
575 | im_port->shost->can_queue = bfad->cfg_data.ioc_queue_depth; | |
b504293f JH |
576 | if (im_port->port->pvb_type == BFAD_PORT_PHYS_BASE) |
577 | im_port->shost->transportt = bfad_im_scsi_transport_template; | |
578 | else | |
579 | im_port->shost->transportt = | |
580 | bfad_im_scsi_vport_transport_template; | |
7725ccfd | 581 | |
c54d557c | 582 | error = scsi_add_host_with_dma(im_port->shost, dev, &bfad->pcidev->dev); |
7725ccfd | 583 | if (error) { |
b504293f | 584 | printk(KERN_WARNING "scsi_add_host failure %d\n", error); |
7725ccfd JH |
585 | goto out_fc_rel; |
586 | } | |
587 | ||
7725ccfd JH |
588 | return 0; |
589 | ||
590 | out_fc_rel: | |
591 | scsi_host_put(im_port->shost); | |
d9883548 | 592 | im_port->shost = NULL; |
7725ccfd | 593 | out_free_idr: |
42b426ec | 594 | mutex_lock(&bfad_mutex); |
7725ccfd | 595 | idr_remove(&bfad_im_port_index, im_port->idr_id); |
42b426ec | 596 | mutex_unlock(&bfad_mutex); |
7725ccfd JH |
597 | out: |
598 | return error; | |
599 | } | |
600 | ||
601 | void | |
602 | bfad_im_scsi_host_free(struct bfad_s *bfad, struct bfad_im_port_s *im_port) | |
603 | { | |
7725ccfd | 604 | bfa_trc(bfad, bfad->inst_no); |
88166242 | 605 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, "Free scsi%d\n", |
7725ccfd JH |
606 | im_port->shost->host_no); |
607 | ||
608 | fc_remove_host(im_port->shost); | |
609 | ||
610 | scsi_remove_host(im_port->shost); | |
611 | scsi_host_put(im_port->shost); | |
612 | ||
42b426ec | 613 | mutex_lock(&bfad_mutex); |
7725ccfd | 614 | idr_remove(&bfad_im_port_index, im_port->idr_id); |
42b426ec | 615 | mutex_unlock(&bfad_mutex); |
7725ccfd JH |
616 | } |
617 | ||
618 | static void | |
619 | bfad_im_port_delete_handler(struct work_struct *work) | |
620 | { | |
621 | struct bfad_im_port_s *im_port = | |
622 | container_of(work, struct bfad_im_port_s, port_delete_work); | |
623 | ||
b504293f JH |
624 | if (im_port->port->pvb_type != BFAD_PORT_PHYS_BASE) { |
625 | im_port->flags |= BFAD_PORT_DELETE; | |
626 | fc_vport_terminate(im_port->fc_vport); | |
627 | } | |
7725ccfd JH |
628 | } |
629 | ||
630 | bfa_status_t | |
631 | bfad_im_port_new(struct bfad_s *bfad, struct bfad_port_s *port) | |
632 | { | |
633 | int rc = BFA_STATUS_OK; | |
634 | struct bfad_im_port_s *im_port; | |
635 | ||
636 | im_port = kzalloc(sizeof(struct bfad_im_port_s), GFP_ATOMIC); | |
637 | if (im_port == NULL) { | |
638 | rc = BFA_STATUS_ENOMEM; | |
639 | goto ext; | |
640 | } | |
641 | port->im_port = im_port; | |
642 | im_port->port = port; | |
643 | im_port->bfad = bfad; | |
644 | ||
645 | INIT_WORK(&im_port->port_delete_work, bfad_im_port_delete_handler); | |
646 | INIT_LIST_HEAD(&im_port->itnim_mapped_list); | |
647 | INIT_LIST_HEAD(&im_port->binding_list); | |
648 | ||
649 | ext: | |
650 | return rc; | |
651 | } | |
652 | ||
653 | void | |
654 | bfad_im_port_delete(struct bfad_s *bfad, struct bfad_port_s *port) | |
655 | { | |
656 | struct bfad_im_port_s *im_port = port->im_port; | |
657 | ||
a36c61f9 | 658 | queue_work(bfad->im->drv_workq, |
7725ccfd JH |
659 | &im_port->port_delete_work); |
660 | } | |
661 | ||
662 | void | |
663 | bfad_im_port_clean(struct bfad_im_port_s *im_port) | |
664 | { | |
665 | struct bfad_fcp_binding *bp, *bp_new; | |
666 | unsigned long flags; | |
667 | struct bfad_s *bfad = im_port->bfad; | |
668 | ||
669 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
670 | list_for_each_entry_safe(bp, bp_new, &im_port->binding_list, | |
671 | list_entry) { | |
672 | list_del(&bp->list_entry); | |
673 | kfree(bp); | |
674 | } | |
675 | ||
676 | /* the itnim_mapped_list must be empty at this time */ | |
d4b671c5 | 677 | WARN_ON(!list_empty(&im_port->itnim_mapped_list)); |
7725ccfd JH |
678 | |
679 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
680 | } | |
681 | ||
7826f304 KG |
682 | static void bfad_aen_im_notify_handler(struct work_struct *work) |
683 | { | |
684 | struct bfad_im_s *im = | |
685 | container_of(work, struct bfad_im_s, aen_im_notify_work); | |
686 | struct bfa_aen_entry_s *aen_entry; | |
687 | struct bfad_s *bfad = im->bfad; | |
688 | struct Scsi_Host *shost = bfad->pport.im_port->shost; | |
689 | void *event_data; | |
690 | unsigned long flags; | |
691 | ||
692 | while (!list_empty(&bfad->active_aen_q)) { | |
693 | spin_lock_irqsave(&bfad->bfad_aen_spinlock, flags); | |
694 | bfa_q_deq(&bfad->active_aen_q, &aen_entry); | |
695 | spin_unlock_irqrestore(&bfad->bfad_aen_spinlock, flags); | |
696 | event_data = (char *)aen_entry + sizeof(struct list_head); | |
697 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
698 | sizeof(struct bfa_aen_entry_s) - | |
699 | sizeof(struct list_head), | |
700 | (char *)event_data, BFAD_NL_VENDOR_ID); | |
701 | spin_lock_irqsave(&bfad->bfad_aen_spinlock, flags); | |
702 | list_add_tail(&aen_entry->qe, &bfad->free_aen_q); | |
703 | spin_unlock_irqrestore(&bfad->bfad_aen_spinlock, flags); | |
704 | } | |
705 | } | |
706 | ||
7725ccfd JH |
707 | bfa_status_t |
708 | bfad_im_probe(struct bfad_s *bfad) | |
709 | { | |
710 | struct bfad_im_s *im; | |
7725ccfd JH |
711 | |
712 | im = kzalloc(sizeof(struct bfad_im_s), GFP_KERNEL); | |
a5254dbb DC |
713 | if (im == NULL) |
714 | return BFA_STATUS_ENOMEM; | |
7725ccfd JH |
715 | |
716 | bfad->im = im; | |
717 | im->bfad = bfad; | |
718 | ||
f16a1750 | 719 | if (bfad_thread_workq(bfad) != BFA_STATUS_OK) { |
7725ccfd | 720 | kfree(im); |
a5254dbb | 721 | return BFA_STATUS_FAILED; |
7725ccfd JH |
722 | } |
723 | ||
7826f304 | 724 | INIT_WORK(&im->aen_im_notify_work, bfad_aen_im_notify_handler); |
a5254dbb | 725 | return BFA_STATUS_OK; |
7725ccfd JH |
726 | } |
727 | ||
728 | void | |
729 | bfad_im_probe_undo(struct bfad_s *bfad) | |
730 | { | |
731 | if (bfad->im) { | |
f16a1750 | 732 | bfad_destroy_workq(bfad->im); |
7725ccfd JH |
733 | kfree(bfad->im); |
734 | bfad->im = NULL; | |
735 | } | |
736 | } | |
737 | ||
7725ccfd | 738 | struct Scsi_Host * |
f16a1750 | 739 | bfad_scsi_host_alloc(struct bfad_im_port_s *im_port, struct bfad_s *bfad) |
7725ccfd JH |
740 | { |
741 | struct scsi_host_template *sht; | |
742 | ||
743 | if (im_port->port->pvb_type == BFAD_PORT_PHYS_BASE) | |
744 | sht = &bfad_im_scsi_host_template; | |
745 | else | |
746 | sht = &bfad_im_vport_template; | |
747 | ||
61e62e21 KG |
748 | if (max_xfer_size != BFAD_MAX_SECTORS >> 1) |
749 | sht->max_sectors = max_xfer_size << 1; | |
750 | ||
7725ccfd JH |
751 | sht->sg_tablesize = bfad->cfg_data.io_max_sge; |
752 | ||
48d83282 | 753 | return scsi_host_alloc(sht, sizeof(struct bfad_im_port_pointer)); |
7725ccfd JH |
754 | } |
755 | ||
756 | void | |
f16a1750 | 757 | bfad_scsi_host_free(struct bfad_s *bfad, struct bfad_im_port_s *im_port) |
7725ccfd | 758 | { |
b504293f JH |
759 | if (!(im_port->flags & BFAD_PORT_DELETE)) |
760 | flush_workqueue(bfad->im->drv_workq); | |
7725ccfd JH |
761 | bfad_im_scsi_host_free(im_port->bfad, im_port); |
762 | bfad_im_port_clean(im_port); | |
763 | kfree(im_port); | |
764 | } | |
765 | ||
766 | void | |
f16a1750 | 767 | bfad_destroy_workq(struct bfad_im_s *im) |
7725ccfd JH |
768 | { |
769 | if (im && im->drv_workq) { | |
a36c61f9 | 770 | flush_workqueue(im->drv_workq); |
7725ccfd JH |
771 | destroy_workqueue(im->drv_workq); |
772 | im->drv_workq = NULL; | |
773 | } | |
774 | } | |
775 | ||
776 | bfa_status_t | |
f16a1750 | 777 | bfad_thread_workq(struct bfad_s *bfad) |
7725ccfd JH |
778 | { |
779 | struct bfad_im_s *im = bfad->im; | |
780 | ||
781 | bfa_trc(bfad, 0); | |
a36c61f9 | 782 | snprintf(im->drv_workq_name, KOBJ_NAME_LEN, "bfad_wq_%d", |
7725ccfd JH |
783 | bfad->inst_no); |
784 | im->drv_workq = create_singlethread_workqueue(im->drv_workq_name); | |
785 | if (!im->drv_workq) | |
786 | return BFA_STATUS_FAILED; | |
787 | ||
788 | return BFA_STATUS_OK; | |
789 | } | |
790 | ||
5fbe25c7 | 791 | /* |
7725ccfd JH |
792 | * Scsi_Host template entry. |
793 | * | |
794 | * Description: | |
795 | * OS entry point to adjust the queue_depths on a per-device basis. | |
796 | * Called once per device during the bus scan. | |
797 | * Return non-zero if fails. | |
798 | */ | |
799 | static int | |
800 | bfad_im_slave_configure(struct scsi_device *sdev) | |
801 | { | |
db5ed4df | 802 | scsi_change_queue_depth(sdev, bfa_lun_queue_depth); |
7725ccfd JH |
803 | return 0; |
804 | } | |
805 | ||
806 | struct scsi_host_template bfad_im_scsi_host_template = { | |
807 | .module = THIS_MODULE, | |
808 | .name = BFAD_DRIVER_NAME, | |
809 | .info = bfad_im_info, | |
810 | .queuecommand = bfad_im_queuecommand, | |
b6a05c82 | 811 | .eh_timed_out = fc_eh_timed_out, |
7725ccfd JH |
812 | .eh_abort_handler = bfad_im_abort_handler, |
813 | .eh_device_reset_handler = bfad_im_reset_lun_handler, | |
1b7092f3 | 814 | .eh_target_reset_handler = bfad_im_reset_target_handler, |
7725ccfd JH |
815 | |
816 | .slave_alloc = bfad_im_slave_alloc, | |
817 | .slave_configure = bfad_im_slave_configure, | |
818 | .slave_destroy = bfad_im_slave_destroy, | |
819 | ||
820 | .this_id = -1, | |
821 | .sg_tablesize = BFAD_IO_MAX_SGE, | |
822 | .cmd_per_lun = 3, | |
823 | .use_clustering = ENABLE_CLUSTERING, | |
824 | .shost_attrs = bfad_im_host_attrs, | |
61e62e21 | 825 | .max_sectors = BFAD_MAX_SECTORS, |
b85daafe | 826 | .vendor_id = BFA_PCI_VENDOR_ID_BROCADE, |
7725ccfd JH |
827 | }; |
828 | ||
829 | struct scsi_host_template bfad_im_vport_template = { | |
830 | .module = THIS_MODULE, | |
831 | .name = BFAD_DRIVER_NAME, | |
832 | .info = bfad_im_info, | |
833 | .queuecommand = bfad_im_queuecommand, | |
b6a05c82 | 834 | .eh_timed_out = fc_eh_timed_out, |
7725ccfd JH |
835 | .eh_abort_handler = bfad_im_abort_handler, |
836 | .eh_device_reset_handler = bfad_im_reset_lun_handler, | |
1b7092f3 | 837 | .eh_target_reset_handler = bfad_im_reset_target_handler, |
7725ccfd JH |
838 | |
839 | .slave_alloc = bfad_im_slave_alloc, | |
840 | .slave_configure = bfad_im_slave_configure, | |
841 | .slave_destroy = bfad_im_slave_destroy, | |
842 | ||
843 | .this_id = -1, | |
844 | .sg_tablesize = BFAD_IO_MAX_SGE, | |
845 | .cmd_per_lun = 3, | |
846 | .use_clustering = ENABLE_CLUSTERING, | |
847 | .shost_attrs = bfad_im_vport_attrs, | |
61e62e21 | 848 | .max_sectors = BFAD_MAX_SECTORS, |
7725ccfd JH |
849 | }; |
850 | ||
7725ccfd JH |
851 | bfa_status_t |
852 | bfad_im_module_init(void) | |
853 | { | |
854 | bfad_im_scsi_transport_template = | |
855 | fc_attach_transport(&bfad_im_fc_function_template); | |
856 | if (!bfad_im_scsi_transport_template) | |
857 | return BFA_STATUS_ENOMEM; | |
858 | ||
b504293f JH |
859 | bfad_im_scsi_vport_transport_template = |
860 | fc_attach_transport(&bfad_im_vport_fc_function_template); | |
861 | if (!bfad_im_scsi_vport_transport_template) { | |
862 | fc_release_transport(bfad_im_scsi_transport_template); | |
863 | return BFA_STATUS_ENOMEM; | |
864 | } | |
865 | ||
7725ccfd JH |
866 | return BFA_STATUS_OK; |
867 | } | |
868 | ||
869 | void | |
870 | bfad_im_module_exit(void) | |
871 | { | |
872 | if (bfad_im_scsi_transport_template) | |
873 | fc_release_transport(bfad_im_scsi_transport_template); | |
a36c61f9 | 874 | |
b504293f JH |
875 | if (bfad_im_scsi_vport_transport_template) |
876 | fc_release_transport(bfad_im_scsi_vport_transport_template); | |
3ff448b5 AK |
877 | |
878 | idr_destroy(&bfad_im_port_index); | |
7725ccfd JH |
879 | } |
880 | ||
7725ccfd | 881 | void |
f16a1750 | 882 | bfad_ramp_up_qdepth(struct bfad_itnim_s *itnim, struct scsi_device *sdev) |
7725ccfd JH |
883 | { |
884 | struct scsi_device *tmp_sdev; | |
885 | ||
886 | if (((jiffies - itnim->last_ramp_up_time) > | |
887 | BFA_QUEUE_FULL_RAMP_UP_TIME * HZ) && | |
888 | ((jiffies - itnim->last_queue_full_time) > | |
889 | BFA_QUEUE_FULL_RAMP_UP_TIME * HZ)) { | |
890 | shost_for_each_device(tmp_sdev, sdev->host) { | |
891 | if (bfa_lun_queue_depth > tmp_sdev->queue_depth) { | |
892 | if (tmp_sdev->id != sdev->id) | |
893 | continue; | |
db5ed4df | 894 | scsi_change_queue_depth(tmp_sdev, |
609aa22f | 895 | tmp_sdev->queue_depth + 1); |
7725ccfd JH |
896 | |
897 | itnim->last_ramp_up_time = jiffies; | |
898 | } | |
899 | } | |
900 | } | |
901 | } | |
902 | ||
903 | void | |
f16a1750 | 904 | bfad_handle_qfull(struct bfad_itnim_s *itnim, struct scsi_device *sdev) |
7725ccfd JH |
905 | { |
906 | struct scsi_device *tmp_sdev; | |
907 | ||
908 | itnim->last_queue_full_time = jiffies; | |
909 | ||
910 | shost_for_each_device(tmp_sdev, sdev->host) { | |
911 | if (tmp_sdev->id != sdev->id) | |
912 | continue; | |
913 | scsi_track_queue_full(tmp_sdev, tmp_sdev->queue_depth - 1); | |
914 | } | |
915 | } | |
916 | ||
7725ccfd | 917 | struct bfad_itnim_s * |
f16a1750 | 918 | bfad_get_itnim(struct bfad_im_port_s *im_port, int id) |
7725ccfd JH |
919 | { |
920 | struct bfad_itnim_s *itnim = NULL; | |
921 | ||
922 | /* Search the mapped list for this target ID */ | |
923 | list_for_each_entry(itnim, &im_port->itnim_mapped_list, list_entry) { | |
924 | if (id == itnim->scsi_tgt_id) | |
925 | return itnim; | |
926 | } | |
927 | ||
928 | return NULL; | |
929 | } | |
930 | ||
5b7db7af KG |
931 | /* |
932 | * Function is invoked from the SCSI Host Template slave_alloc() entry point. | |
933 | * Has the logic to query the LUN Mask database to check if this LUN needs to | |
934 | * be made visible to the SCSI mid-layer or not. | |
935 | * | |
936 | * Returns BFA_STATUS_OK if this LUN needs to be added to the OS stack. | |
937 | * Returns -ENXIO to notify SCSI mid-layer to not add this LUN to the OS stack. | |
938 | */ | |
939 | static int | |
940 | bfad_im_check_if_make_lun_visible(struct scsi_device *sdev, | |
941 | struct fc_rport *rport) | |
942 | { | |
943 | struct bfad_itnim_data_s *itnim_data = | |
944 | (struct bfad_itnim_data_s *) rport->dd_data; | |
945 | struct bfa_s *bfa = itnim_data->itnim->bfa_itnim->bfa; | |
946 | struct bfa_rport_s *bfa_rport = itnim_data->itnim->bfa_itnim->rport; | |
947 | struct bfa_lun_mask_s *lun_list = bfa_get_lun_mask_list(bfa); | |
948 | int i = 0, ret = -ENXIO; | |
949 | ||
950 | for (i = 0; i < MAX_LUN_MASK_CFG; i++) { | |
951 | if (lun_list[i].state == BFA_IOIM_LUN_MASK_ACTIVE && | |
952 | scsilun_to_int(&lun_list[i].lun) == sdev->lun && | |
953 | lun_list[i].rp_tag == bfa_rport->rport_tag && | |
954 | lun_list[i].lp_tag == (u8)bfa_rport->rport_info.lp_tag) { | |
955 | ret = BFA_STATUS_OK; | |
956 | break; | |
957 | } | |
958 | } | |
959 | return ret; | |
960 | } | |
961 | ||
5fbe25c7 | 962 | /* |
7725ccfd JH |
963 | * Scsi_Host template entry slave_alloc |
964 | */ | |
965 | static int | |
966 | bfad_im_slave_alloc(struct scsi_device *sdev) | |
967 | { | |
968 | struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); | |
c6e23d83 JN |
969 | struct bfad_itnim_data_s *itnim_data; |
970 | struct bfa_s *bfa; | |
7725ccfd JH |
971 | |
972 | if (!rport || fc_remote_port_chkready(rport)) | |
973 | return -ENXIO; | |
974 | ||
c6e23d83 JN |
975 | itnim_data = (struct bfad_itnim_data_s *) rport->dd_data; |
976 | bfa = itnim_data->itnim->bfa_itnim->bfa; | |
977 | ||
5b7db7af KG |
978 | if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_ENABLED) { |
979 | /* | |
980 | * We should not mask LUN 0 - since this will translate | |
981 | * to no LUN / TARGET for SCSI ml resulting no scan. | |
982 | */ | |
983 | if (sdev->lun == 0) { | |
984 | sdev->sdev_bflags |= BLIST_NOREPORTLUN | | |
985 | BLIST_SPARSELUN; | |
986 | goto done; | |
987 | } | |
988 | ||
989 | /* | |
990 | * Query LUN Mask configuration - to expose this LUN | |
991 | * to the SCSI mid-layer or to mask it. | |
992 | */ | |
993 | if (bfad_im_check_if_make_lun_visible(sdev, rport) != | |
994 | BFA_STATUS_OK) | |
995 | return -ENXIO; | |
996 | } | |
997 | done: | |
7725ccfd JH |
998 | sdev->hostdata = rport->dd_data; |
999 | ||
1000 | return 0; | |
1001 | } | |
1002 | ||
6192bd7c | 1003 | u32 |
a36c61f9 KG |
1004 | bfad_im_supported_speeds(struct bfa_s *bfa) |
1005 | { | |
e0a08a30 | 1006 | struct bfa_ioc_attr_s *ioc_attr; |
a36c61f9 KG |
1007 | u32 supported_speed = 0; |
1008 | ||
e0a08a30 JH |
1009 | ioc_attr = kzalloc(sizeof(struct bfa_ioc_attr_s), GFP_KERNEL); |
1010 | if (!ioc_attr) | |
1011 | return 0; | |
1012 | ||
f7f73812 | 1013 | bfa_ioc_get_attr(&bfa->ioc, ioc_attr); |
8b070b4a KG |
1014 | if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_16GBPS) |
1015 | supported_speed |= FC_PORTSPEED_16GBIT | FC_PORTSPEED_8GBIT | | |
1016 | FC_PORTSPEED_4GBIT | FC_PORTSPEED_2GBIT; | |
1017 | else if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_8GBPS) { | |
e0a08a30 | 1018 | if (ioc_attr->adapter_attr.is_mezz) { |
a36c61f9 KG |
1019 | supported_speed |= FC_PORTSPEED_8GBIT | |
1020 | FC_PORTSPEED_4GBIT | | |
1021 | FC_PORTSPEED_2GBIT | FC_PORTSPEED_1GBIT; | |
1022 | } else { | |
1023 | supported_speed |= FC_PORTSPEED_8GBIT | | |
1024 | FC_PORTSPEED_4GBIT | | |
1025 | FC_PORTSPEED_2GBIT; | |
1026 | } | |
e0a08a30 | 1027 | } else if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_4GBPS) { |
a36c61f9 KG |
1028 | supported_speed |= FC_PORTSPEED_4GBIT | FC_PORTSPEED_2GBIT | |
1029 | FC_PORTSPEED_1GBIT; | |
e0a08a30 | 1030 | } else if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_10GBPS) { |
a36c61f9 KG |
1031 | supported_speed |= FC_PORTSPEED_10GBIT; |
1032 | } | |
e0a08a30 | 1033 | kfree(ioc_attr); |
a36c61f9 KG |
1034 | return supported_speed; |
1035 | } | |
1036 | ||
7725ccfd | 1037 | void |
f16a1750 | 1038 | bfad_fc_host_init(struct bfad_im_port_s *im_port) |
7725ccfd JH |
1039 | { |
1040 | struct Scsi_Host *host = im_port->shost; | |
1041 | struct bfad_s *bfad = im_port->bfad; | |
1042 | struct bfad_port_s *port = im_port->port; | |
a36c61f9 | 1043 | char symname[BFA_SYMNAME_MAXLEN]; |
e0a08a30 | 1044 | struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(&bfad->bfa); |
7725ccfd JH |
1045 | |
1046 | fc_host_node_name(host) = | |
ba816ea8 | 1047 | cpu_to_be64((bfa_fcs_lport_get_nwwn(port->fcs_port))); |
7725ccfd | 1048 | fc_host_port_name(host) = |
ba816ea8 | 1049 | cpu_to_be64((bfa_fcs_lport_get_pwwn(port->fcs_port))); |
b504293f | 1050 | fc_host_max_npiv_vports(host) = bfa_lps_get_max_vport(&bfad->bfa); |
7725ccfd JH |
1051 | |
1052 | fc_host_supported_classes(host) = FC_COS_CLASS3; | |
1053 | ||
1054 | memset(fc_host_supported_fc4s(host), 0, | |
1055 | sizeof(fc_host_supported_fc4s(host))); | |
a36c61f9 | 1056 | if (supported_fc4s & BFA_LPORT_ROLE_FCP_IM) |
7725ccfd JH |
1057 | /* For FCP type 0x08 */ |
1058 | fc_host_supported_fc4s(host)[2] = 1; | |
7725ccfd JH |
1059 | /* For fibre channel services type 0x20 */ |
1060 | fc_host_supported_fc4s(host)[7] = 1; | |
1061 | ||
c6e23d83 | 1062 | strlcpy(symname, bfad->bfa_fcs.fabric.bport.port_cfg.sym_name.symname, |
a36c61f9 KG |
1063 | BFA_SYMNAME_MAXLEN); |
1064 | sprintf(fc_host_symbolic_name(host), "%s", symname); | |
7725ccfd | 1065 | |
a36c61f9 | 1066 | fc_host_supported_speeds(host) = bfad_im_supported_speeds(&bfad->bfa); |
5fbe25c7 | 1067 | fc_host_maxframe_size(host) = fcport->cfg.maxfrsize; |
7725ccfd JH |
1068 | } |
1069 | ||
1070 | static void | |
1071 | bfad_im_fc_rport_add(struct bfad_im_port_s *im_port, struct bfad_itnim_s *itnim) | |
1072 | { | |
1073 | struct fc_rport_identifiers rport_ids; | |
1074 | struct fc_rport *fc_rport; | |
1075 | struct bfad_itnim_data_s *itnim_data; | |
1076 | ||
1077 | rport_ids.node_name = | |
ba816ea8 | 1078 | cpu_to_be64(bfa_fcs_itnim_get_nwwn(&itnim->fcs_itnim)); |
7725ccfd | 1079 | rport_ids.port_name = |
ba816ea8 | 1080 | cpu_to_be64(bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim)); |
7725ccfd | 1081 | rport_ids.port_id = |
f16a1750 | 1082 | bfa_hton3b(bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim)); |
7725ccfd JH |
1083 | rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; |
1084 | ||
1085 | itnim->fc_rport = fc_rport = | |
1086 | fc_remote_port_add(im_port->shost, 0, &rport_ids); | |
1087 | ||
1088 | if (!fc_rport) | |
1089 | return; | |
1090 | ||
1091 | fc_rport->maxframe_size = | |
1092 | bfa_fcs_itnim_get_maxfrsize(&itnim->fcs_itnim); | |
1093 | fc_rport->supported_classes = bfa_fcs_itnim_get_cos(&itnim->fcs_itnim); | |
1094 | ||
1095 | itnim_data = fc_rport->dd_data; | |
1096 | itnim_data->itnim = itnim; | |
1097 | ||
1098 | rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; | |
1099 | ||
1100 | if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) | |
1101 | fc_remote_port_rolechg(fc_rport, rport_ids.roles); | |
1102 | ||
1103 | if ((fc_rport->scsi_target_id != -1) | |
1104 | && (fc_rport->scsi_target_id < MAX_FCP_TARGET)) | |
1105 | itnim->scsi_tgt_id = fc_rport->scsi_target_id; | |
1106 | ||
5b7db7af KG |
1107 | itnim->channel = fc_rport->channel; |
1108 | ||
7725ccfd JH |
1109 | return; |
1110 | } | |
1111 | ||
5fbe25c7 | 1112 | /* |
7725ccfd JH |
1113 | * Work queue handler using FC transport service |
1114 | * Context: kernel | |
1115 | */ | |
1116 | static void | |
1117 | bfad_im_itnim_work_handler(struct work_struct *work) | |
1118 | { | |
1119 | struct bfad_itnim_s *itnim = container_of(work, struct bfad_itnim_s, | |
1120 | itnim_work); | |
1121 | struct bfad_im_s *im = itnim->im; | |
1122 | struct bfad_s *bfad = im->bfad; | |
1123 | struct bfad_im_port_s *im_port; | |
1124 | unsigned long flags; | |
1125 | struct fc_rport *fc_rport; | |
1126 | wwn_t wwpn; | |
1127 | u32 fcid; | |
1128 | char wwpn_str[32], fcid_str[16]; | |
1129 | ||
1130 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1131 | im_port = itnim->im_port; | |
1132 | bfa_trc(bfad, itnim->state); | |
1133 | switch (itnim->state) { | |
1134 | case ITNIM_STATE_ONLINE: | |
1135 | if (!itnim->fc_rport) { | |
1136 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1137 | bfad_im_fc_rport_add(im_port, itnim); | |
1138 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1139 | wwpn = bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim); | |
1140 | fcid = bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim); | |
1141 | wwn2str(wwpn_str, wwpn); | |
1142 | fcid2str(fcid_str, fcid); | |
1143 | list_add_tail(&itnim->list_entry, | |
1144 | &im_port->itnim_mapped_list); | |
88166242 | 1145 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
a36c61f9 KG |
1146 | "ITNIM ONLINE Target: %d:0:%d " |
1147 | "FCID: %s WWPN: %s\n", | |
7725ccfd JH |
1148 | im_port->shost->host_no, |
1149 | itnim->scsi_tgt_id, | |
1150 | fcid_str, wwpn_str); | |
1151 | } else { | |
1152 | printk(KERN_WARNING | |
1153 | "%s: itnim %llx is already in online state\n", | |
f8ceafde | 1154 | __func__, |
7725ccfd JH |
1155 | bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim)); |
1156 | } | |
1157 | ||
1158 | break; | |
1159 | case ITNIM_STATE_OFFLINE_PENDING: | |
1160 | itnim->state = ITNIM_STATE_OFFLINE; | |
1161 | if (itnim->fc_rport) { | |
1162 | fc_rport = itnim->fc_rport; | |
1163 | ((struct bfad_itnim_data_s *) | |
1164 | fc_rport->dd_data)->itnim = NULL; | |
1165 | itnim->fc_rport = NULL; | |
1166 | if (!(im_port->port->flags & BFAD_PORT_DELETE)) { | |
1167 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1168 | fc_rport->dev_loss_tmo = | |
1169 | bfa_fcpim_path_tov_get(&bfad->bfa) + 1; | |
1170 | fc_remote_port_delete(fc_rport); | |
1171 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1172 | } | |
1173 | wwpn = bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim); | |
1174 | fcid = bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim); | |
1175 | wwn2str(wwpn_str, wwpn); | |
1176 | fcid2str(fcid_str, fcid); | |
1177 | list_del(&itnim->list_entry); | |
88166242 | 1178 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
a36c61f9 KG |
1179 | "ITNIM OFFLINE Target: %d:0:%d " |
1180 | "FCID: %s WWPN: %s\n", | |
7725ccfd JH |
1181 | im_port->shost->host_no, |
1182 | itnim->scsi_tgt_id, | |
1183 | fcid_str, wwpn_str); | |
1184 | } | |
1185 | break; | |
1186 | case ITNIM_STATE_FREE: | |
1187 | if (itnim->fc_rport) { | |
1188 | fc_rport = itnim->fc_rport; | |
1189 | ((struct bfad_itnim_data_s *) | |
1190 | fc_rport->dd_data)->itnim = NULL; | |
1191 | itnim->fc_rport = NULL; | |
1192 | if (!(im_port->port->flags & BFAD_PORT_DELETE)) { | |
1193 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1194 | fc_rport->dev_loss_tmo = | |
1195 | bfa_fcpim_path_tov_get(&bfad->bfa) + 1; | |
1196 | fc_remote_port_delete(fc_rport); | |
1197 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1198 | } | |
1199 | list_del(&itnim->list_entry); | |
1200 | } | |
1201 | ||
1202 | kfree(itnim); | |
1203 | break; | |
1204 | default: | |
d4b671c5 | 1205 | WARN_ON(1); |
7725ccfd JH |
1206 | break; |
1207 | } | |
1208 | ||
1209 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1210 | } | |
1211 | ||
5fbe25c7 | 1212 | /* |
7725ccfd JH |
1213 | * Scsi_Host template entry, queue a SCSI command to the BFAD. |
1214 | */ | |
1215 | static int | |
f281233d | 1216 | bfad_im_queuecommand_lck(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *)) |
7725ccfd JH |
1217 | { |
1218 | struct bfad_im_port_s *im_port = | |
1219 | (struct bfad_im_port_s *) cmnd->device->host->hostdata[0]; | |
1220 | struct bfad_s *bfad = im_port->bfad; | |
1221 | struct bfad_itnim_data_s *itnim_data = cmnd->device->hostdata; | |
1222 | struct bfad_itnim_s *itnim; | |
1223 | struct bfa_ioim_s *hal_io; | |
1224 | unsigned long flags; | |
1225 | int rc; | |
a36c61f9 | 1226 | int sg_cnt = 0; |
7725ccfd JH |
1227 | struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); |
1228 | ||
1229 | rc = fc_remote_port_chkready(rport); | |
1230 | if (rc) { | |
1231 | cmnd->result = rc; | |
1232 | done(cmnd); | |
1233 | return 0; | |
1234 | } | |
1235 | ||
881c1b3c KG |
1236 | if (bfad->bfad_flags & BFAD_EEH_BUSY) { |
1237 | if (bfad->bfad_flags & BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE) | |
1238 | cmnd->result = DID_NO_CONNECT << 16; | |
1239 | else | |
1240 | cmnd->result = DID_REQUEUE << 16; | |
1241 | done(cmnd); | |
1242 | return 0; | |
1243 | } | |
1244 | ||
7725ccfd | 1245 | sg_cnt = scsi_dma_map(cmnd); |
7725ccfd JH |
1246 | if (sg_cnt < 0) |
1247 | return SCSI_MLQUEUE_HOST_BUSY; | |
1248 | ||
1249 | cmnd->scsi_done = done; | |
1250 | ||
1251 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1252 | if (!(bfad->bfad_flags & BFAD_HAL_START_DONE)) { | |
1253 | printk(KERN_WARNING | |
1254 | "bfad%d, queuecommand %p %x failed, BFA stopped\n", | |
1255 | bfad->inst_no, cmnd, cmnd->cmnd[0]); | |
1256 | cmnd->result = ScsiResult(DID_NO_CONNECT, 0); | |
1257 | goto out_fail_cmd; | |
1258 | } | |
1259 | ||
a36c61f9 | 1260 | |
7725ccfd JH |
1261 | itnim = itnim_data->itnim; |
1262 | if (!itnim) { | |
1263 | cmnd->result = ScsiResult(DID_IMM_RETRY, 0); | |
1264 | goto out_fail_cmd; | |
1265 | } | |
1266 | ||
1267 | hal_io = bfa_ioim_alloc(&bfad->bfa, (struct bfad_ioim_s *) cmnd, | |
1268 | itnim->bfa_itnim, sg_cnt); | |
1269 | if (!hal_io) { | |
1270 | printk(KERN_WARNING "hal_io failure\n"); | |
1271 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1272 | scsi_dma_unmap(cmnd); | |
1273 | return SCSI_MLQUEUE_HOST_BUSY; | |
1274 | } | |
1275 | ||
1276 | cmnd->host_scribble = (char *)hal_io; | |
7725ccfd JH |
1277 | bfa_ioim_start(hal_io); |
1278 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1279 | ||
1280 | return 0; | |
1281 | ||
1282 | out_fail_cmd: | |
1283 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1284 | scsi_dma_unmap(cmnd); | |
1285 | if (done) | |
1286 | done(cmnd); | |
1287 | ||
1288 | return 0; | |
1289 | } | |
1290 | ||
f281233d JG |
1291 | static DEF_SCSI_QCMD(bfad_im_queuecommand) |
1292 | ||
7725ccfd | 1293 | void |
f16a1750 | 1294 | bfad_rport_online_wait(struct bfad_s *bfad) |
7725ccfd JH |
1295 | { |
1296 | int i; | |
1297 | int rport_delay = 10; | |
1298 | ||
1299 | for (i = 0; !(bfad->bfad_flags & BFAD_PORT_ONLINE) | |
a36c61f9 KG |
1300 | && i < bfa_linkup_delay; i++) { |
1301 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1302 | schedule_timeout(HZ); | |
1303 | } | |
7725ccfd JH |
1304 | |
1305 | if (bfad->bfad_flags & BFAD_PORT_ONLINE) { | |
1306 | rport_delay = rport_delay < bfa_linkup_delay ? | |
a36c61f9 | 1307 | rport_delay : bfa_linkup_delay; |
7725ccfd | 1308 | for (i = 0; !(bfad->bfad_flags & BFAD_RPORT_ONLINE) |
a36c61f9 KG |
1309 | && i < rport_delay; i++) { |
1310 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1311 | schedule_timeout(HZ); | |
1312 | } | |
7725ccfd | 1313 | |
a36c61f9 KG |
1314 | if (rport_delay > 0 && (bfad->bfad_flags & BFAD_RPORT_ONLINE)) { |
1315 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1316 | schedule_timeout(rport_delay * HZ); | |
1317 | } | |
7725ccfd JH |
1318 | } |
1319 | } | |
1320 | ||
1321 | int | |
f16a1750 | 1322 | bfad_get_linkup_delay(struct bfad_s *bfad) |
7725ccfd | 1323 | { |
a36c61f9 KG |
1324 | u8 nwwns = 0; |
1325 | wwn_t wwns[BFA_PREBOOT_BOOTLUN_MAX]; | |
1326 | int linkup_delay; | |
7725ccfd JH |
1327 | |
1328 | /* | |
1329 | * Querying for the boot target port wwns | |
1330 | * -- read from boot information in flash. | |
a36c61f9 KG |
1331 | * If nwwns > 0 => boot over SAN and set linkup_delay = 30 |
1332 | * else => local boot machine set linkup_delay = 0 | |
7725ccfd JH |
1333 | */ |
1334 | ||
15b64a83 | 1335 | bfa_iocfc_get_bootwwns(&bfad->bfa, &nwwns, wwns); |
7725ccfd | 1336 | |
a36c61f9 KG |
1337 | if (nwwns > 0) |
1338 | /* If Boot over SAN set linkup_delay = 30sec */ | |
1339 | linkup_delay = 30; | |
1340 | else | |
1341 | /* If local boot; no linkup_delay */ | |
1342 | linkup_delay = 0; | |
7725ccfd | 1343 | |
a36c61f9 | 1344 | return linkup_delay; |
7725ccfd | 1345 | } |