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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 | /* |
7725ccfd JH |
376 | * Scsi_Host template entry, resets the bus and abort all commands. |
377 | */ | |
378 | static int | |
379 | bfad_im_reset_bus_handler(struct scsi_cmnd *cmnd) | |
380 | { | |
381 | struct Scsi_Host *shost = cmnd->device->host; | |
382 | struct bfad_im_port_s *im_port = | |
383 | (struct bfad_im_port_s *) shost->hostdata[0]; | |
384 | struct bfad_s *bfad = im_port->bfad; | |
385 | struct bfad_itnim_s *itnim; | |
386 | unsigned long flags; | |
387 | u32 i, rc, err_cnt = 0; | |
6d154db6 | 388 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq); |
7725ccfd JH |
389 | enum bfi_tskim_status task_status; |
390 | ||
391 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
392 | for (i = 0; i < MAX_FCP_TARGET; i++) { | |
f16a1750 | 393 | itnim = bfad_get_itnim(im_port, i); |
7725ccfd JH |
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) { | |
398 | err_cnt++; | |
399 | continue; | |
400 | } | |
401 | ||
402 | /* wait target reset to complete */ | |
403 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
404 | wait_event(wq, test_bit(IO_DONE_BIT, | |
405 | (unsigned long *)&cmnd->SCp.Status)); | |
406 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
407 | ||
408 | task_status = cmnd->SCp.Status >> 1; | |
409 | if (task_status != BFI_TSKIM_STS_OK) { | |
88166242 | 410 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, |
7725ccfd JH |
411 | "target reset failure," |
412 | " status: %d\n", task_status); | |
413 | err_cnt++; | |
414 | } | |
415 | } | |
416 | } | |
417 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
418 | ||
419 | if (err_cnt) | |
420 | return FAILED; | |
421 | ||
422 | return SUCCESS; | |
423 | } | |
424 | ||
5fbe25c7 | 425 | /* |
7725ccfd JH |
426 | * Scsi_Host template entry slave_destroy. |
427 | */ | |
428 | static void | |
429 | bfad_im_slave_destroy(struct scsi_device *sdev) | |
430 | { | |
431 | sdev->hostdata = NULL; | |
432 | return; | |
433 | } | |
434 | ||
5fbe25c7 | 435 | /* |
7725ccfd JH |
436 | * BFA FCS itnim callbacks |
437 | */ | |
438 | ||
5fbe25c7 | 439 | /* |
7725ccfd JH |
440 | * BFA FCS itnim alloc callback, after successful PRLI |
441 | * Context: Interrupt | |
442 | */ | |
4e51af9e | 443 | int |
7725ccfd JH |
444 | bfa_fcb_itnim_alloc(struct bfad_s *bfad, struct bfa_fcs_itnim_s **itnim, |
445 | struct bfad_itnim_s **itnim_drv) | |
446 | { | |
447 | *itnim_drv = kzalloc(sizeof(struct bfad_itnim_s), GFP_ATOMIC); | |
448 | if (*itnim_drv == NULL) | |
4e51af9e | 449 | return -ENOMEM; |
7725ccfd JH |
450 | |
451 | (*itnim_drv)->im = bfad->im; | |
452 | *itnim = &(*itnim_drv)->fcs_itnim; | |
453 | (*itnim_drv)->state = ITNIM_STATE_NONE; | |
454 | ||
455 | /* | |
456 | * Initiaze the itnim_work | |
457 | */ | |
458 | INIT_WORK(&(*itnim_drv)->itnim_work, bfad_im_itnim_work_handler); | |
459 | bfad->bfad_flags |= BFAD_RPORT_ONLINE; | |
4e51af9e | 460 | return 0; |
7725ccfd JH |
461 | } |
462 | ||
5fbe25c7 | 463 | /* |
7725ccfd JH |
464 | * BFA FCS itnim free callback. |
465 | * Context: Interrupt. bfad_lock is held | |
466 | */ | |
467 | void | |
468 | bfa_fcb_itnim_free(struct bfad_s *bfad, struct bfad_itnim_s *itnim_drv) | |
469 | { | |
470 | struct bfad_port_s *port; | |
471 | wwn_t wwpn; | |
472 | u32 fcid; | |
473 | char wwpn_str[32], fcid_str[16]; | |
a36c61f9 | 474 | struct bfad_im_s *im = itnim_drv->im; |
7725ccfd JH |
475 | |
476 | /* online to free state transtion should not happen */ | |
d4b671c5 | 477 | WARN_ON(itnim_drv->state == ITNIM_STATE_ONLINE); |
7725ccfd JH |
478 | |
479 | itnim_drv->queue_work = 1; | |
480 | /* offline request is not yet done, use the same request to free */ | |
481 | if (itnim_drv->state == ITNIM_STATE_OFFLINE_PENDING) | |
482 | itnim_drv->queue_work = 0; | |
483 | ||
484 | itnim_drv->state = ITNIM_STATE_FREE; | |
485 | port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim); | |
486 | itnim_drv->im_port = port->im_port; | |
487 | wwpn = bfa_fcs_itnim_get_pwwn(&itnim_drv->fcs_itnim); | |
488 | fcid = bfa_fcs_itnim_get_fcid(&itnim_drv->fcs_itnim); | |
489 | wwn2str(wwpn_str, wwpn); | |
490 | fcid2str(fcid_str, fcid); | |
88166242 | 491 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
a36c61f9 | 492 | "ITNIM FREE scsi%d: FCID: %s WWPN: %s\n", |
7725ccfd JH |
493 | port->im_port->shost->host_no, |
494 | fcid_str, wwpn_str); | |
a36c61f9 KG |
495 | |
496 | /* ITNIM processing */ | |
497 | if (itnim_drv->queue_work) | |
498 | queue_work(im->drv_workq, &itnim_drv->itnim_work); | |
7725ccfd JH |
499 | } |
500 | ||
5fbe25c7 | 501 | /* |
7725ccfd JH |
502 | * BFA FCS itnim online callback. |
503 | * Context: Interrupt. bfad_lock is held | |
504 | */ | |
505 | void | |
506 | bfa_fcb_itnim_online(struct bfad_itnim_s *itnim_drv) | |
507 | { | |
508 | struct bfad_port_s *port; | |
a36c61f9 | 509 | struct bfad_im_s *im = itnim_drv->im; |
7725ccfd JH |
510 | |
511 | itnim_drv->bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim_drv->fcs_itnim); | |
512 | port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim); | |
513 | itnim_drv->state = ITNIM_STATE_ONLINE; | |
514 | itnim_drv->queue_work = 1; | |
515 | itnim_drv->im_port = port->im_port; | |
a36c61f9 KG |
516 | |
517 | /* ITNIM processing */ | |
518 | if (itnim_drv->queue_work) | |
519 | queue_work(im->drv_workq, &itnim_drv->itnim_work); | |
7725ccfd JH |
520 | } |
521 | ||
5fbe25c7 | 522 | /* |
7725ccfd JH |
523 | * BFA FCS itnim offline callback. |
524 | * Context: Interrupt. bfad_lock is held | |
525 | */ | |
526 | void | |
527 | bfa_fcb_itnim_offline(struct bfad_itnim_s *itnim_drv) | |
528 | { | |
529 | struct bfad_port_s *port; | |
530 | struct bfad_s *bfad; | |
a36c61f9 | 531 | struct bfad_im_s *im = itnim_drv->im; |
7725ccfd JH |
532 | |
533 | port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim); | |
534 | bfad = port->bfad; | |
535 | if ((bfad->pport.flags & BFAD_PORT_DELETE) || | |
536 | (port->flags & BFAD_PORT_DELETE)) { | |
537 | itnim_drv->state = ITNIM_STATE_OFFLINE; | |
538 | return; | |
539 | } | |
540 | itnim_drv->im_port = port->im_port; | |
541 | itnim_drv->state = ITNIM_STATE_OFFLINE_PENDING; | |
542 | itnim_drv->queue_work = 1; | |
7725ccfd | 543 | |
a36c61f9 KG |
544 | /* ITNIM processing */ |
545 | if (itnim_drv->queue_work) | |
546 | queue_work(im->drv_workq, &itnim_drv->itnim_work); | |
7725ccfd JH |
547 | } |
548 | ||
5fbe25c7 | 549 | /* |
7725ccfd JH |
550 | * Allocate a Scsi_Host for a port. |
551 | */ | |
552 | int | |
b504293f | 553 | bfad_im_scsi_host_alloc(struct bfad_s *bfad, struct bfad_im_port_s *im_port, |
a36c61f9 | 554 | struct device *dev) |
7725ccfd JH |
555 | { |
556 | int error = 1; | |
557 | ||
42b426ec | 558 | mutex_lock(&bfad_mutex); |
70a9755d TH |
559 | error = idr_alloc(&bfad_im_port_index, im_port, 0, 0, GFP_KERNEL); |
560 | if (error < 0) { | |
42b426ec | 561 | mutex_unlock(&bfad_mutex); |
70a9755d | 562 | printk(KERN_WARNING "idr_alloc failure\n"); |
7725ccfd JH |
563 | goto out; |
564 | } | |
70a9755d | 565 | im_port->idr_id = error; |
42b426ec JH |
566 | mutex_unlock(&bfad_mutex); |
567 | ||
f16a1750 | 568 | im_port->shost = bfad_scsi_host_alloc(im_port, bfad); |
7725ccfd JH |
569 | if (!im_port->shost) { |
570 | error = 1; | |
571 | goto out_free_idr; | |
572 | } | |
573 | ||
574 | im_port->shost->hostdata[0] = (unsigned long)im_port; | |
575 | im_port->shost->unique_id = im_port->idr_id; | |
576 | im_port->shost->this_id = -1; | |
577 | im_port->shost->max_id = MAX_FCP_TARGET; | |
578 | im_port->shost->max_lun = MAX_FCP_LUN; | |
579 | im_port->shost->max_cmd_len = 16; | |
580 | im_port->shost->can_queue = bfad->cfg_data.ioc_queue_depth; | |
b504293f JH |
581 | if (im_port->port->pvb_type == BFAD_PORT_PHYS_BASE) |
582 | im_port->shost->transportt = bfad_im_scsi_transport_template; | |
583 | else | |
584 | im_port->shost->transportt = | |
585 | bfad_im_scsi_vport_transport_template; | |
7725ccfd | 586 | |
c54d557c | 587 | error = scsi_add_host_with_dma(im_port->shost, dev, &bfad->pcidev->dev); |
7725ccfd | 588 | if (error) { |
b504293f | 589 | printk(KERN_WARNING "scsi_add_host failure %d\n", error); |
7725ccfd JH |
590 | goto out_fc_rel; |
591 | } | |
592 | ||
7725ccfd JH |
593 | return 0; |
594 | ||
595 | out_fc_rel: | |
596 | scsi_host_put(im_port->shost); | |
d9883548 | 597 | im_port->shost = NULL; |
7725ccfd | 598 | out_free_idr: |
42b426ec | 599 | mutex_lock(&bfad_mutex); |
7725ccfd | 600 | idr_remove(&bfad_im_port_index, im_port->idr_id); |
42b426ec | 601 | mutex_unlock(&bfad_mutex); |
7725ccfd JH |
602 | out: |
603 | return error; | |
604 | } | |
605 | ||
606 | void | |
607 | bfad_im_scsi_host_free(struct bfad_s *bfad, struct bfad_im_port_s *im_port) | |
608 | { | |
7725ccfd | 609 | bfa_trc(bfad, bfad->inst_no); |
88166242 | 610 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, "Free scsi%d\n", |
7725ccfd JH |
611 | im_port->shost->host_no); |
612 | ||
613 | fc_remove_host(im_port->shost); | |
614 | ||
615 | scsi_remove_host(im_port->shost); | |
616 | scsi_host_put(im_port->shost); | |
617 | ||
42b426ec | 618 | mutex_lock(&bfad_mutex); |
7725ccfd | 619 | idr_remove(&bfad_im_port_index, im_port->idr_id); |
42b426ec | 620 | mutex_unlock(&bfad_mutex); |
7725ccfd JH |
621 | } |
622 | ||
623 | static void | |
624 | bfad_im_port_delete_handler(struct work_struct *work) | |
625 | { | |
626 | struct bfad_im_port_s *im_port = | |
627 | container_of(work, struct bfad_im_port_s, port_delete_work); | |
628 | ||
b504293f JH |
629 | if (im_port->port->pvb_type != BFAD_PORT_PHYS_BASE) { |
630 | im_port->flags |= BFAD_PORT_DELETE; | |
631 | fc_vport_terminate(im_port->fc_vport); | |
632 | } | |
7725ccfd JH |
633 | } |
634 | ||
635 | bfa_status_t | |
636 | bfad_im_port_new(struct bfad_s *bfad, struct bfad_port_s *port) | |
637 | { | |
638 | int rc = BFA_STATUS_OK; | |
639 | struct bfad_im_port_s *im_port; | |
640 | ||
641 | im_port = kzalloc(sizeof(struct bfad_im_port_s), GFP_ATOMIC); | |
642 | if (im_port == NULL) { | |
643 | rc = BFA_STATUS_ENOMEM; | |
644 | goto ext; | |
645 | } | |
646 | port->im_port = im_port; | |
647 | im_port->port = port; | |
648 | im_port->bfad = bfad; | |
649 | ||
650 | INIT_WORK(&im_port->port_delete_work, bfad_im_port_delete_handler); | |
651 | INIT_LIST_HEAD(&im_port->itnim_mapped_list); | |
652 | INIT_LIST_HEAD(&im_port->binding_list); | |
653 | ||
654 | ext: | |
655 | return rc; | |
656 | } | |
657 | ||
658 | void | |
659 | bfad_im_port_delete(struct bfad_s *bfad, struct bfad_port_s *port) | |
660 | { | |
661 | struct bfad_im_port_s *im_port = port->im_port; | |
662 | ||
a36c61f9 | 663 | queue_work(bfad->im->drv_workq, |
7725ccfd JH |
664 | &im_port->port_delete_work); |
665 | } | |
666 | ||
667 | void | |
668 | bfad_im_port_clean(struct bfad_im_port_s *im_port) | |
669 | { | |
670 | struct bfad_fcp_binding *bp, *bp_new; | |
671 | unsigned long flags; | |
672 | struct bfad_s *bfad = im_port->bfad; | |
673 | ||
674 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
675 | list_for_each_entry_safe(bp, bp_new, &im_port->binding_list, | |
676 | list_entry) { | |
677 | list_del(&bp->list_entry); | |
678 | kfree(bp); | |
679 | } | |
680 | ||
681 | /* the itnim_mapped_list must be empty at this time */ | |
d4b671c5 | 682 | WARN_ON(!list_empty(&im_port->itnim_mapped_list)); |
7725ccfd JH |
683 | |
684 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
685 | } | |
686 | ||
7826f304 KG |
687 | static void bfad_aen_im_notify_handler(struct work_struct *work) |
688 | { | |
689 | struct bfad_im_s *im = | |
690 | container_of(work, struct bfad_im_s, aen_im_notify_work); | |
691 | struct bfa_aen_entry_s *aen_entry; | |
692 | struct bfad_s *bfad = im->bfad; | |
693 | struct Scsi_Host *shost = bfad->pport.im_port->shost; | |
694 | void *event_data; | |
695 | unsigned long flags; | |
696 | ||
697 | while (!list_empty(&bfad->active_aen_q)) { | |
698 | spin_lock_irqsave(&bfad->bfad_aen_spinlock, flags); | |
699 | bfa_q_deq(&bfad->active_aen_q, &aen_entry); | |
700 | spin_unlock_irqrestore(&bfad->bfad_aen_spinlock, flags); | |
701 | event_data = (char *)aen_entry + sizeof(struct list_head); | |
702 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
703 | sizeof(struct bfa_aen_entry_s) - | |
704 | sizeof(struct list_head), | |
705 | (char *)event_data, BFAD_NL_VENDOR_ID); | |
706 | spin_lock_irqsave(&bfad->bfad_aen_spinlock, flags); | |
707 | list_add_tail(&aen_entry->qe, &bfad->free_aen_q); | |
708 | spin_unlock_irqrestore(&bfad->bfad_aen_spinlock, flags); | |
709 | } | |
710 | } | |
711 | ||
7725ccfd JH |
712 | bfa_status_t |
713 | bfad_im_probe(struct bfad_s *bfad) | |
714 | { | |
715 | struct bfad_im_s *im; | |
7725ccfd JH |
716 | |
717 | im = kzalloc(sizeof(struct bfad_im_s), GFP_KERNEL); | |
a5254dbb DC |
718 | if (im == NULL) |
719 | return BFA_STATUS_ENOMEM; | |
7725ccfd JH |
720 | |
721 | bfad->im = im; | |
722 | im->bfad = bfad; | |
723 | ||
f16a1750 | 724 | if (bfad_thread_workq(bfad) != BFA_STATUS_OK) { |
7725ccfd | 725 | kfree(im); |
a5254dbb | 726 | return BFA_STATUS_FAILED; |
7725ccfd JH |
727 | } |
728 | ||
7826f304 | 729 | INIT_WORK(&im->aen_im_notify_work, bfad_aen_im_notify_handler); |
a5254dbb | 730 | return BFA_STATUS_OK; |
7725ccfd JH |
731 | } |
732 | ||
733 | void | |
734 | bfad_im_probe_undo(struct bfad_s *bfad) | |
735 | { | |
736 | if (bfad->im) { | |
f16a1750 | 737 | bfad_destroy_workq(bfad->im); |
7725ccfd JH |
738 | kfree(bfad->im); |
739 | bfad->im = NULL; | |
740 | } | |
741 | } | |
742 | ||
7725ccfd | 743 | struct Scsi_Host * |
f16a1750 | 744 | bfad_scsi_host_alloc(struct bfad_im_port_s *im_port, struct bfad_s *bfad) |
7725ccfd JH |
745 | { |
746 | struct scsi_host_template *sht; | |
747 | ||
748 | if (im_port->port->pvb_type == BFAD_PORT_PHYS_BASE) | |
749 | sht = &bfad_im_scsi_host_template; | |
750 | else | |
751 | sht = &bfad_im_vport_template; | |
752 | ||
61e62e21 KG |
753 | if (max_xfer_size != BFAD_MAX_SECTORS >> 1) |
754 | sht->max_sectors = max_xfer_size << 1; | |
755 | ||
7725ccfd JH |
756 | sht->sg_tablesize = bfad->cfg_data.io_max_sge; |
757 | ||
758 | return scsi_host_alloc(sht, sizeof(unsigned long)); | |
759 | } | |
760 | ||
761 | void | |
f16a1750 | 762 | bfad_scsi_host_free(struct bfad_s *bfad, struct bfad_im_port_s *im_port) |
7725ccfd | 763 | { |
b504293f JH |
764 | if (!(im_port->flags & BFAD_PORT_DELETE)) |
765 | flush_workqueue(bfad->im->drv_workq); | |
7725ccfd JH |
766 | bfad_im_scsi_host_free(im_port->bfad, im_port); |
767 | bfad_im_port_clean(im_port); | |
768 | kfree(im_port); | |
769 | } | |
770 | ||
771 | void | |
f16a1750 | 772 | bfad_destroy_workq(struct bfad_im_s *im) |
7725ccfd JH |
773 | { |
774 | if (im && im->drv_workq) { | |
a36c61f9 | 775 | flush_workqueue(im->drv_workq); |
7725ccfd JH |
776 | destroy_workqueue(im->drv_workq); |
777 | im->drv_workq = NULL; | |
778 | } | |
779 | } | |
780 | ||
781 | bfa_status_t | |
f16a1750 | 782 | bfad_thread_workq(struct bfad_s *bfad) |
7725ccfd JH |
783 | { |
784 | struct bfad_im_s *im = bfad->im; | |
785 | ||
786 | bfa_trc(bfad, 0); | |
a36c61f9 | 787 | snprintf(im->drv_workq_name, KOBJ_NAME_LEN, "bfad_wq_%d", |
7725ccfd JH |
788 | bfad->inst_no); |
789 | im->drv_workq = create_singlethread_workqueue(im->drv_workq_name); | |
790 | if (!im->drv_workq) | |
791 | return BFA_STATUS_FAILED; | |
792 | ||
793 | return BFA_STATUS_OK; | |
794 | } | |
795 | ||
5fbe25c7 | 796 | /* |
7725ccfd JH |
797 | * Scsi_Host template entry. |
798 | * | |
799 | * Description: | |
800 | * OS entry point to adjust the queue_depths on a per-device basis. | |
801 | * Called once per device during the bus scan. | |
802 | * Return non-zero if fails. | |
803 | */ | |
804 | static int | |
805 | bfad_im_slave_configure(struct scsi_device *sdev) | |
806 | { | |
db5ed4df | 807 | scsi_change_queue_depth(sdev, bfa_lun_queue_depth); |
7725ccfd JH |
808 | return 0; |
809 | } | |
810 | ||
811 | struct scsi_host_template bfad_im_scsi_host_template = { | |
812 | .module = THIS_MODULE, | |
813 | .name = BFAD_DRIVER_NAME, | |
814 | .info = bfad_im_info, | |
815 | .queuecommand = bfad_im_queuecommand, | |
b6a05c82 | 816 | .eh_timed_out = fc_eh_timed_out, |
7725ccfd JH |
817 | .eh_abort_handler = bfad_im_abort_handler, |
818 | .eh_device_reset_handler = bfad_im_reset_lun_handler, | |
819 | .eh_bus_reset_handler = bfad_im_reset_bus_handler, | |
820 | ||
821 | .slave_alloc = bfad_im_slave_alloc, | |
822 | .slave_configure = bfad_im_slave_configure, | |
823 | .slave_destroy = bfad_im_slave_destroy, | |
824 | ||
825 | .this_id = -1, | |
826 | .sg_tablesize = BFAD_IO_MAX_SGE, | |
827 | .cmd_per_lun = 3, | |
828 | .use_clustering = ENABLE_CLUSTERING, | |
829 | .shost_attrs = bfad_im_host_attrs, | |
61e62e21 | 830 | .max_sectors = BFAD_MAX_SECTORS, |
b85daafe | 831 | .vendor_id = BFA_PCI_VENDOR_ID_BROCADE, |
7725ccfd JH |
832 | }; |
833 | ||
834 | struct scsi_host_template bfad_im_vport_template = { | |
835 | .module = THIS_MODULE, | |
836 | .name = BFAD_DRIVER_NAME, | |
837 | .info = bfad_im_info, | |
838 | .queuecommand = bfad_im_queuecommand, | |
b6a05c82 | 839 | .eh_timed_out = fc_eh_timed_out, |
7725ccfd JH |
840 | .eh_abort_handler = bfad_im_abort_handler, |
841 | .eh_device_reset_handler = bfad_im_reset_lun_handler, | |
842 | .eh_bus_reset_handler = bfad_im_reset_bus_handler, | |
843 | ||
844 | .slave_alloc = bfad_im_slave_alloc, | |
845 | .slave_configure = bfad_im_slave_configure, | |
846 | .slave_destroy = bfad_im_slave_destroy, | |
847 | ||
848 | .this_id = -1, | |
849 | .sg_tablesize = BFAD_IO_MAX_SGE, | |
850 | .cmd_per_lun = 3, | |
851 | .use_clustering = ENABLE_CLUSTERING, | |
852 | .shost_attrs = bfad_im_vport_attrs, | |
61e62e21 | 853 | .max_sectors = BFAD_MAX_SECTORS, |
7725ccfd JH |
854 | }; |
855 | ||
7725ccfd JH |
856 | bfa_status_t |
857 | bfad_im_module_init(void) | |
858 | { | |
859 | bfad_im_scsi_transport_template = | |
860 | fc_attach_transport(&bfad_im_fc_function_template); | |
861 | if (!bfad_im_scsi_transport_template) | |
862 | return BFA_STATUS_ENOMEM; | |
863 | ||
b504293f JH |
864 | bfad_im_scsi_vport_transport_template = |
865 | fc_attach_transport(&bfad_im_vport_fc_function_template); | |
866 | if (!bfad_im_scsi_vport_transport_template) { | |
867 | fc_release_transport(bfad_im_scsi_transport_template); | |
868 | return BFA_STATUS_ENOMEM; | |
869 | } | |
870 | ||
7725ccfd JH |
871 | return BFA_STATUS_OK; |
872 | } | |
873 | ||
874 | void | |
875 | bfad_im_module_exit(void) | |
876 | { | |
877 | if (bfad_im_scsi_transport_template) | |
878 | fc_release_transport(bfad_im_scsi_transport_template); | |
a36c61f9 | 879 | |
b504293f JH |
880 | if (bfad_im_scsi_vport_transport_template) |
881 | fc_release_transport(bfad_im_scsi_vport_transport_template); | |
3ff448b5 AK |
882 | |
883 | idr_destroy(&bfad_im_port_index); | |
7725ccfd JH |
884 | } |
885 | ||
7725ccfd | 886 | void |
f16a1750 | 887 | bfad_ramp_up_qdepth(struct bfad_itnim_s *itnim, struct scsi_device *sdev) |
7725ccfd JH |
888 | { |
889 | struct scsi_device *tmp_sdev; | |
890 | ||
891 | if (((jiffies - itnim->last_ramp_up_time) > | |
892 | BFA_QUEUE_FULL_RAMP_UP_TIME * HZ) && | |
893 | ((jiffies - itnim->last_queue_full_time) > | |
894 | BFA_QUEUE_FULL_RAMP_UP_TIME * HZ)) { | |
895 | shost_for_each_device(tmp_sdev, sdev->host) { | |
896 | if (bfa_lun_queue_depth > tmp_sdev->queue_depth) { | |
897 | if (tmp_sdev->id != sdev->id) | |
898 | continue; | |
db5ed4df | 899 | scsi_change_queue_depth(tmp_sdev, |
609aa22f | 900 | tmp_sdev->queue_depth + 1); |
7725ccfd JH |
901 | |
902 | itnim->last_ramp_up_time = jiffies; | |
903 | } | |
904 | } | |
905 | } | |
906 | } | |
907 | ||
908 | void | |
f16a1750 | 909 | bfad_handle_qfull(struct bfad_itnim_s *itnim, struct scsi_device *sdev) |
7725ccfd JH |
910 | { |
911 | struct scsi_device *tmp_sdev; | |
912 | ||
913 | itnim->last_queue_full_time = jiffies; | |
914 | ||
915 | shost_for_each_device(tmp_sdev, sdev->host) { | |
916 | if (tmp_sdev->id != sdev->id) | |
917 | continue; | |
918 | scsi_track_queue_full(tmp_sdev, tmp_sdev->queue_depth - 1); | |
919 | } | |
920 | } | |
921 | ||
7725ccfd | 922 | struct bfad_itnim_s * |
f16a1750 | 923 | bfad_get_itnim(struct bfad_im_port_s *im_port, int id) |
7725ccfd JH |
924 | { |
925 | struct bfad_itnim_s *itnim = NULL; | |
926 | ||
927 | /* Search the mapped list for this target ID */ | |
928 | list_for_each_entry(itnim, &im_port->itnim_mapped_list, list_entry) { | |
929 | if (id == itnim->scsi_tgt_id) | |
930 | return itnim; | |
931 | } | |
932 | ||
933 | return NULL; | |
934 | } | |
935 | ||
5b7db7af KG |
936 | /* |
937 | * Function is invoked from the SCSI Host Template slave_alloc() entry point. | |
938 | * Has the logic to query the LUN Mask database to check if this LUN needs to | |
939 | * be made visible to the SCSI mid-layer or not. | |
940 | * | |
941 | * Returns BFA_STATUS_OK if this LUN needs to be added to the OS stack. | |
942 | * Returns -ENXIO to notify SCSI mid-layer to not add this LUN to the OS stack. | |
943 | */ | |
944 | static int | |
945 | bfad_im_check_if_make_lun_visible(struct scsi_device *sdev, | |
946 | struct fc_rport *rport) | |
947 | { | |
948 | struct bfad_itnim_data_s *itnim_data = | |
949 | (struct bfad_itnim_data_s *) rport->dd_data; | |
950 | struct bfa_s *bfa = itnim_data->itnim->bfa_itnim->bfa; | |
951 | struct bfa_rport_s *bfa_rport = itnim_data->itnim->bfa_itnim->rport; | |
952 | struct bfa_lun_mask_s *lun_list = bfa_get_lun_mask_list(bfa); | |
953 | int i = 0, ret = -ENXIO; | |
954 | ||
955 | for (i = 0; i < MAX_LUN_MASK_CFG; i++) { | |
956 | if (lun_list[i].state == BFA_IOIM_LUN_MASK_ACTIVE && | |
957 | scsilun_to_int(&lun_list[i].lun) == sdev->lun && | |
958 | lun_list[i].rp_tag == bfa_rport->rport_tag && | |
959 | lun_list[i].lp_tag == (u8)bfa_rport->rport_info.lp_tag) { | |
960 | ret = BFA_STATUS_OK; | |
961 | break; | |
962 | } | |
963 | } | |
964 | return ret; | |
965 | } | |
966 | ||
5fbe25c7 | 967 | /* |
7725ccfd JH |
968 | * Scsi_Host template entry slave_alloc |
969 | */ | |
970 | static int | |
971 | bfad_im_slave_alloc(struct scsi_device *sdev) | |
972 | { | |
973 | struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); | |
c6e23d83 JN |
974 | struct bfad_itnim_data_s *itnim_data; |
975 | struct bfa_s *bfa; | |
7725ccfd JH |
976 | |
977 | if (!rport || fc_remote_port_chkready(rport)) | |
978 | return -ENXIO; | |
979 | ||
c6e23d83 JN |
980 | itnim_data = (struct bfad_itnim_data_s *) rport->dd_data; |
981 | bfa = itnim_data->itnim->bfa_itnim->bfa; | |
982 | ||
5b7db7af KG |
983 | if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_ENABLED) { |
984 | /* | |
985 | * We should not mask LUN 0 - since this will translate | |
986 | * to no LUN / TARGET for SCSI ml resulting no scan. | |
987 | */ | |
988 | if (sdev->lun == 0) { | |
989 | sdev->sdev_bflags |= BLIST_NOREPORTLUN | | |
990 | BLIST_SPARSELUN; | |
991 | goto done; | |
992 | } | |
993 | ||
994 | /* | |
995 | * Query LUN Mask configuration - to expose this LUN | |
996 | * to the SCSI mid-layer or to mask it. | |
997 | */ | |
998 | if (bfad_im_check_if_make_lun_visible(sdev, rport) != | |
999 | BFA_STATUS_OK) | |
1000 | return -ENXIO; | |
1001 | } | |
1002 | done: | |
7725ccfd JH |
1003 | sdev->hostdata = rport->dd_data; |
1004 | ||
1005 | return 0; | |
1006 | } | |
1007 | ||
6192bd7c | 1008 | u32 |
a36c61f9 KG |
1009 | bfad_im_supported_speeds(struct bfa_s *bfa) |
1010 | { | |
e0a08a30 | 1011 | struct bfa_ioc_attr_s *ioc_attr; |
a36c61f9 KG |
1012 | u32 supported_speed = 0; |
1013 | ||
e0a08a30 JH |
1014 | ioc_attr = kzalloc(sizeof(struct bfa_ioc_attr_s), GFP_KERNEL); |
1015 | if (!ioc_attr) | |
1016 | return 0; | |
1017 | ||
f7f73812 | 1018 | bfa_ioc_get_attr(&bfa->ioc, ioc_attr); |
8b070b4a KG |
1019 | if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_16GBPS) |
1020 | supported_speed |= FC_PORTSPEED_16GBIT | FC_PORTSPEED_8GBIT | | |
1021 | FC_PORTSPEED_4GBIT | FC_PORTSPEED_2GBIT; | |
1022 | else if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_8GBPS) { | |
e0a08a30 | 1023 | if (ioc_attr->adapter_attr.is_mezz) { |
a36c61f9 KG |
1024 | supported_speed |= FC_PORTSPEED_8GBIT | |
1025 | FC_PORTSPEED_4GBIT | | |
1026 | FC_PORTSPEED_2GBIT | FC_PORTSPEED_1GBIT; | |
1027 | } else { | |
1028 | supported_speed |= FC_PORTSPEED_8GBIT | | |
1029 | FC_PORTSPEED_4GBIT | | |
1030 | FC_PORTSPEED_2GBIT; | |
1031 | } | |
e0a08a30 | 1032 | } else if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_4GBPS) { |
a36c61f9 KG |
1033 | supported_speed |= FC_PORTSPEED_4GBIT | FC_PORTSPEED_2GBIT | |
1034 | FC_PORTSPEED_1GBIT; | |
e0a08a30 | 1035 | } else if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_10GBPS) { |
a36c61f9 KG |
1036 | supported_speed |= FC_PORTSPEED_10GBIT; |
1037 | } | |
e0a08a30 | 1038 | kfree(ioc_attr); |
a36c61f9 KG |
1039 | return supported_speed; |
1040 | } | |
1041 | ||
7725ccfd | 1042 | void |
f16a1750 | 1043 | bfad_fc_host_init(struct bfad_im_port_s *im_port) |
7725ccfd JH |
1044 | { |
1045 | struct Scsi_Host *host = im_port->shost; | |
1046 | struct bfad_s *bfad = im_port->bfad; | |
1047 | struct bfad_port_s *port = im_port->port; | |
a36c61f9 | 1048 | char symname[BFA_SYMNAME_MAXLEN]; |
e0a08a30 | 1049 | struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(&bfad->bfa); |
7725ccfd JH |
1050 | |
1051 | fc_host_node_name(host) = | |
ba816ea8 | 1052 | cpu_to_be64((bfa_fcs_lport_get_nwwn(port->fcs_port))); |
7725ccfd | 1053 | fc_host_port_name(host) = |
ba816ea8 | 1054 | cpu_to_be64((bfa_fcs_lport_get_pwwn(port->fcs_port))); |
b504293f | 1055 | fc_host_max_npiv_vports(host) = bfa_lps_get_max_vport(&bfad->bfa); |
7725ccfd JH |
1056 | |
1057 | fc_host_supported_classes(host) = FC_COS_CLASS3; | |
1058 | ||
1059 | memset(fc_host_supported_fc4s(host), 0, | |
1060 | sizeof(fc_host_supported_fc4s(host))); | |
a36c61f9 | 1061 | if (supported_fc4s & BFA_LPORT_ROLE_FCP_IM) |
7725ccfd JH |
1062 | /* For FCP type 0x08 */ |
1063 | fc_host_supported_fc4s(host)[2] = 1; | |
7725ccfd JH |
1064 | /* For fibre channel services type 0x20 */ |
1065 | fc_host_supported_fc4s(host)[7] = 1; | |
1066 | ||
c6e23d83 | 1067 | strlcpy(symname, bfad->bfa_fcs.fabric.bport.port_cfg.sym_name.symname, |
a36c61f9 KG |
1068 | BFA_SYMNAME_MAXLEN); |
1069 | sprintf(fc_host_symbolic_name(host), "%s", symname); | |
7725ccfd | 1070 | |
a36c61f9 | 1071 | fc_host_supported_speeds(host) = bfad_im_supported_speeds(&bfad->bfa); |
5fbe25c7 | 1072 | fc_host_maxframe_size(host) = fcport->cfg.maxfrsize; |
7725ccfd JH |
1073 | } |
1074 | ||
1075 | static void | |
1076 | bfad_im_fc_rport_add(struct bfad_im_port_s *im_port, struct bfad_itnim_s *itnim) | |
1077 | { | |
1078 | struct fc_rport_identifiers rport_ids; | |
1079 | struct fc_rport *fc_rport; | |
1080 | struct bfad_itnim_data_s *itnim_data; | |
1081 | ||
1082 | rport_ids.node_name = | |
ba816ea8 | 1083 | cpu_to_be64(bfa_fcs_itnim_get_nwwn(&itnim->fcs_itnim)); |
7725ccfd | 1084 | rport_ids.port_name = |
ba816ea8 | 1085 | cpu_to_be64(bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim)); |
7725ccfd | 1086 | rport_ids.port_id = |
f16a1750 | 1087 | bfa_hton3b(bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim)); |
7725ccfd JH |
1088 | rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; |
1089 | ||
1090 | itnim->fc_rport = fc_rport = | |
1091 | fc_remote_port_add(im_port->shost, 0, &rport_ids); | |
1092 | ||
1093 | if (!fc_rport) | |
1094 | return; | |
1095 | ||
1096 | fc_rport->maxframe_size = | |
1097 | bfa_fcs_itnim_get_maxfrsize(&itnim->fcs_itnim); | |
1098 | fc_rport->supported_classes = bfa_fcs_itnim_get_cos(&itnim->fcs_itnim); | |
1099 | ||
1100 | itnim_data = fc_rport->dd_data; | |
1101 | itnim_data->itnim = itnim; | |
1102 | ||
1103 | rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; | |
1104 | ||
1105 | if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) | |
1106 | fc_remote_port_rolechg(fc_rport, rport_ids.roles); | |
1107 | ||
1108 | if ((fc_rport->scsi_target_id != -1) | |
1109 | && (fc_rport->scsi_target_id < MAX_FCP_TARGET)) | |
1110 | itnim->scsi_tgt_id = fc_rport->scsi_target_id; | |
1111 | ||
5b7db7af KG |
1112 | itnim->channel = fc_rport->channel; |
1113 | ||
7725ccfd JH |
1114 | return; |
1115 | } | |
1116 | ||
5fbe25c7 | 1117 | /* |
7725ccfd JH |
1118 | * Work queue handler using FC transport service |
1119 | * Context: kernel | |
1120 | */ | |
1121 | static void | |
1122 | bfad_im_itnim_work_handler(struct work_struct *work) | |
1123 | { | |
1124 | struct bfad_itnim_s *itnim = container_of(work, struct bfad_itnim_s, | |
1125 | itnim_work); | |
1126 | struct bfad_im_s *im = itnim->im; | |
1127 | struct bfad_s *bfad = im->bfad; | |
1128 | struct bfad_im_port_s *im_port; | |
1129 | unsigned long flags; | |
1130 | struct fc_rport *fc_rport; | |
1131 | wwn_t wwpn; | |
1132 | u32 fcid; | |
1133 | char wwpn_str[32], fcid_str[16]; | |
1134 | ||
1135 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1136 | im_port = itnim->im_port; | |
1137 | bfa_trc(bfad, itnim->state); | |
1138 | switch (itnim->state) { | |
1139 | case ITNIM_STATE_ONLINE: | |
1140 | if (!itnim->fc_rport) { | |
1141 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1142 | bfad_im_fc_rport_add(im_port, itnim); | |
1143 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1144 | wwpn = bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim); | |
1145 | fcid = bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim); | |
1146 | wwn2str(wwpn_str, wwpn); | |
1147 | fcid2str(fcid_str, fcid); | |
1148 | list_add_tail(&itnim->list_entry, | |
1149 | &im_port->itnim_mapped_list); | |
88166242 | 1150 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
a36c61f9 KG |
1151 | "ITNIM ONLINE Target: %d:0:%d " |
1152 | "FCID: %s WWPN: %s\n", | |
7725ccfd JH |
1153 | im_port->shost->host_no, |
1154 | itnim->scsi_tgt_id, | |
1155 | fcid_str, wwpn_str); | |
1156 | } else { | |
1157 | printk(KERN_WARNING | |
1158 | "%s: itnim %llx is already in online state\n", | |
f8ceafde | 1159 | __func__, |
7725ccfd JH |
1160 | bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim)); |
1161 | } | |
1162 | ||
1163 | break; | |
1164 | case ITNIM_STATE_OFFLINE_PENDING: | |
1165 | itnim->state = ITNIM_STATE_OFFLINE; | |
1166 | if (itnim->fc_rport) { | |
1167 | fc_rport = itnim->fc_rport; | |
1168 | ((struct bfad_itnim_data_s *) | |
1169 | fc_rport->dd_data)->itnim = NULL; | |
1170 | itnim->fc_rport = NULL; | |
1171 | if (!(im_port->port->flags & BFAD_PORT_DELETE)) { | |
1172 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1173 | fc_rport->dev_loss_tmo = | |
1174 | bfa_fcpim_path_tov_get(&bfad->bfa) + 1; | |
1175 | fc_remote_port_delete(fc_rport); | |
1176 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1177 | } | |
1178 | wwpn = bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim); | |
1179 | fcid = bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim); | |
1180 | wwn2str(wwpn_str, wwpn); | |
1181 | fcid2str(fcid_str, fcid); | |
1182 | list_del(&itnim->list_entry); | |
88166242 | 1183 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
a36c61f9 KG |
1184 | "ITNIM OFFLINE Target: %d:0:%d " |
1185 | "FCID: %s WWPN: %s\n", | |
7725ccfd JH |
1186 | im_port->shost->host_no, |
1187 | itnim->scsi_tgt_id, | |
1188 | fcid_str, wwpn_str); | |
1189 | } | |
1190 | break; | |
1191 | case ITNIM_STATE_FREE: | |
1192 | if (itnim->fc_rport) { | |
1193 | fc_rport = itnim->fc_rport; | |
1194 | ((struct bfad_itnim_data_s *) | |
1195 | fc_rport->dd_data)->itnim = NULL; | |
1196 | itnim->fc_rport = NULL; | |
1197 | if (!(im_port->port->flags & BFAD_PORT_DELETE)) { | |
1198 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1199 | fc_rport->dev_loss_tmo = | |
1200 | bfa_fcpim_path_tov_get(&bfad->bfa) + 1; | |
1201 | fc_remote_port_delete(fc_rport); | |
1202 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1203 | } | |
1204 | list_del(&itnim->list_entry); | |
1205 | } | |
1206 | ||
1207 | kfree(itnim); | |
1208 | break; | |
1209 | default: | |
d4b671c5 | 1210 | WARN_ON(1); |
7725ccfd JH |
1211 | break; |
1212 | } | |
1213 | ||
1214 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1215 | } | |
1216 | ||
5fbe25c7 | 1217 | /* |
7725ccfd JH |
1218 | * Scsi_Host template entry, queue a SCSI command to the BFAD. |
1219 | */ | |
1220 | static int | |
f281233d | 1221 | bfad_im_queuecommand_lck(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *)) |
7725ccfd JH |
1222 | { |
1223 | struct bfad_im_port_s *im_port = | |
1224 | (struct bfad_im_port_s *) cmnd->device->host->hostdata[0]; | |
1225 | struct bfad_s *bfad = im_port->bfad; | |
1226 | struct bfad_itnim_data_s *itnim_data = cmnd->device->hostdata; | |
1227 | struct bfad_itnim_s *itnim; | |
1228 | struct bfa_ioim_s *hal_io; | |
1229 | unsigned long flags; | |
1230 | int rc; | |
a36c61f9 | 1231 | int sg_cnt = 0; |
7725ccfd JH |
1232 | struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); |
1233 | ||
1234 | rc = fc_remote_port_chkready(rport); | |
1235 | if (rc) { | |
1236 | cmnd->result = rc; | |
1237 | done(cmnd); | |
1238 | return 0; | |
1239 | } | |
1240 | ||
881c1b3c KG |
1241 | if (bfad->bfad_flags & BFAD_EEH_BUSY) { |
1242 | if (bfad->bfad_flags & BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE) | |
1243 | cmnd->result = DID_NO_CONNECT << 16; | |
1244 | else | |
1245 | cmnd->result = DID_REQUEUE << 16; | |
1246 | done(cmnd); | |
1247 | return 0; | |
1248 | } | |
1249 | ||
7725ccfd | 1250 | sg_cnt = scsi_dma_map(cmnd); |
7725ccfd JH |
1251 | if (sg_cnt < 0) |
1252 | return SCSI_MLQUEUE_HOST_BUSY; | |
1253 | ||
1254 | cmnd->scsi_done = done; | |
1255 | ||
1256 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1257 | if (!(bfad->bfad_flags & BFAD_HAL_START_DONE)) { | |
1258 | printk(KERN_WARNING | |
1259 | "bfad%d, queuecommand %p %x failed, BFA stopped\n", | |
1260 | bfad->inst_no, cmnd, cmnd->cmnd[0]); | |
1261 | cmnd->result = ScsiResult(DID_NO_CONNECT, 0); | |
1262 | goto out_fail_cmd; | |
1263 | } | |
1264 | ||
a36c61f9 | 1265 | |
7725ccfd JH |
1266 | itnim = itnim_data->itnim; |
1267 | if (!itnim) { | |
1268 | cmnd->result = ScsiResult(DID_IMM_RETRY, 0); | |
1269 | goto out_fail_cmd; | |
1270 | } | |
1271 | ||
1272 | hal_io = bfa_ioim_alloc(&bfad->bfa, (struct bfad_ioim_s *) cmnd, | |
1273 | itnim->bfa_itnim, sg_cnt); | |
1274 | if (!hal_io) { | |
1275 | printk(KERN_WARNING "hal_io failure\n"); | |
1276 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1277 | scsi_dma_unmap(cmnd); | |
1278 | return SCSI_MLQUEUE_HOST_BUSY; | |
1279 | } | |
1280 | ||
1281 | cmnd->host_scribble = (char *)hal_io; | |
7725ccfd JH |
1282 | bfa_ioim_start(hal_io); |
1283 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1284 | ||
1285 | return 0; | |
1286 | ||
1287 | out_fail_cmd: | |
1288 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1289 | scsi_dma_unmap(cmnd); | |
1290 | if (done) | |
1291 | done(cmnd); | |
1292 | ||
1293 | return 0; | |
1294 | } | |
1295 | ||
f281233d JG |
1296 | static DEF_SCSI_QCMD(bfad_im_queuecommand) |
1297 | ||
7725ccfd | 1298 | void |
f16a1750 | 1299 | bfad_rport_online_wait(struct bfad_s *bfad) |
7725ccfd JH |
1300 | { |
1301 | int i; | |
1302 | int rport_delay = 10; | |
1303 | ||
1304 | for (i = 0; !(bfad->bfad_flags & BFAD_PORT_ONLINE) | |
a36c61f9 KG |
1305 | && i < bfa_linkup_delay; i++) { |
1306 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1307 | schedule_timeout(HZ); | |
1308 | } | |
7725ccfd JH |
1309 | |
1310 | if (bfad->bfad_flags & BFAD_PORT_ONLINE) { | |
1311 | rport_delay = rport_delay < bfa_linkup_delay ? | |
a36c61f9 | 1312 | rport_delay : bfa_linkup_delay; |
7725ccfd | 1313 | for (i = 0; !(bfad->bfad_flags & BFAD_RPORT_ONLINE) |
a36c61f9 KG |
1314 | && i < rport_delay; i++) { |
1315 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1316 | schedule_timeout(HZ); | |
1317 | } | |
7725ccfd | 1318 | |
a36c61f9 KG |
1319 | if (rport_delay > 0 && (bfad->bfad_flags & BFAD_RPORT_ONLINE)) { |
1320 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1321 | schedule_timeout(rport_delay * HZ); | |
1322 | } | |
7725ccfd JH |
1323 | } |
1324 | } | |
1325 | ||
1326 | int | |
f16a1750 | 1327 | bfad_get_linkup_delay(struct bfad_s *bfad) |
7725ccfd | 1328 | { |
a36c61f9 KG |
1329 | u8 nwwns = 0; |
1330 | wwn_t wwns[BFA_PREBOOT_BOOTLUN_MAX]; | |
1331 | int linkup_delay; | |
7725ccfd JH |
1332 | |
1333 | /* | |
1334 | * Querying for the boot target port wwns | |
1335 | * -- read from boot information in flash. | |
a36c61f9 KG |
1336 | * If nwwns > 0 => boot over SAN and set linkup_delay = 30 |
1337 | * else => local boot machine set linkup_delay = 0 | |
7725ccfd JH |
1338 | */ |
1339 | ||
15b64a83 | 1340 | bfa_iocfc_get_bootwwns(&bfad->bfa, &nwwns, wwns); |
7725ccfd | 1341 | |
a36c61f9 KG |
1342 | if (nwwns > 0) |
1343 | /* If Boot over SAN set linkup_delay = 30sec */ | |
1344 | linkup_delay = 30; | |
1345 | else | |
1346 | /* If local boot; no linkup_delay */ | |
1347 | linkup_delay = 0; | |
7725ccfd | 1348 | |
a36c61f9 | 1349 | return linkup_delay; |
7725ccfd | 1350 | } |