Commit | Line | Data |
---|---|---|
7725ccfd | 1 | /* |
a36c61f9 | 2 | * Copyright (c) 2005-2010 Brocade Communications Systems, Inc. |
7725ccfd JH |
3 | * All rights reserved |
4 | * www.brocade.com | |
5 | * | |
6 | * Linux driver for Brocade Fibre Channel Host Bus Adapter. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License (GPL) Version 2 as | |
10 | * published by the Free Software Foundation | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | */ | |
17 | ||
5fbe25c7 | 18 | /* |
7725ccfd JH |
19 | * bfad_im.c Linux driver IM module. |
20 | */ | |
21 | ||
22 | #include "bfad_drv.h" | |
23 | #include "bfad_im.h" | |
a36c61f9 KG |
24 | #include "bfa_cb_ioim.h" |
25 | #include "bfa_fcs.h" | |
7725ccfd JH |
26 | |
27 | BFA_TRC_FILE(LDRV, IM); | |
28 | ||
29 | DEFINE_IDR(bfad_im_port_index); | |
30 | struct scsi_transport_template *bfad_im_scsi_transport_template; | |
b504293f | 31 | struct scsi_transport_template *bfad_im_scsi_vport_transport_template; |
7725ccfd JH |
32 | static void bfad_im_itnim_work_handler(struct work_struct *work); |
33 | static int bfad_im_queuecommand(struct scsi_cmnd *cmnd, | |
a36c61f9 | 34 | void (*done)(struct scsi_cmnd *)); |
7725ccfd | 35 | static int bfad_im_slave_alloc(struct scsi_device *sdev); |
a36c61f9 KG |
36 | static void bfad_im_fc_rport_add(struct bfad_im_port_s *im_port, |
37 | struct bfad_itnim_s *itnim); | |
7725ccfd JH |
38 | |
39 | void | |
40 | bfa_cb_ioim_done(void *drv, struct bfad_ioim_s *dio, | |
41 | enum bfi_ioim_status io_status, u8 scsi_status, | |
42 | int sns_len, u8 *sns_info, s32 residue) | |
43 | { | |
44 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio; | |
45 | struct bfad_s *bfad = drv; | |
46 | struct bfad_itnim_data_s *itnim_data; | |
47 | struct bfad_itnim_s *itnim; | |
95aa060d | 48 | u8 host_status = DID_OK; |
7725ccfd JH |
49 | |
50 | switch (io_status) { | |
51 | case BFI_IOIM_STS_OK: | |
52 | bfa_trc(bfad, scsi_status); | |
7725ccfd JH |
53 | scsi_set_resid(cmnd, 0); |
54 | ||
55 | if (sns_len > 0) { | |
56 | bfa_trc(bfad, sns_len); | |
57 | if (sns_len > SCSI_SENSE_BUFFERSIZE) | |
58 | sns_len = SCSI_SENSE_BUFFERSIZE; | |
59 | memcpy(cmnd->sense_buffer, sns_info, sns_len); | |
60 | } | |
a36c61f9 | 61 | |
95aa060d KG |
62 | if (residue > 0) { |
63 | bfa_trc(bfad, residue); | |
7725ccfd | 64 | scsi_set_resid(cmnd, residue); |
95aa060d KG |
65 | if (!sns_len && (scsi_status == SAM_STAT_GOOD) && |
66 | (scsi_bufflen(cmnd) - residue) < | |
67 | cmnd->underflow) { | |
68 | bfa_trc(bfad, 0); | |
69 | host_status = DID_ERROR; | |
70 | } | |
71 | } | |
72 | cmnd->result = ScsiResult(host_status, scsi_status); | |
73 | ||
7725ccfd JH |
74 | break; |
75 | ||
76 | case BFI_IOIM_STS_ABORTED: | |
77 | case BFI_IOIM_STS_TIMEDOUT: | |
78 | case BFI_IOIM_STS_PATHTOV: | |
79 | default: | |
a36c61f9 KG |
80 | host_status = DID_ERROR; |
81 | cmnd->result = ScsiResult(host_status, 0); | |
7725ccfd JH |
82 | } |
83 | ||
84 | /* Unmap DMA, if host is NULL, it means a scsi passthru cmd */ | |
85 | if (cmnd->device->host != NULL) | |
86 | scsi_dma_unmap(cmnd); | |
87 | ||
88 | cmnd->host_scribble = NULL; | |
89 | bfa_trc(bfad, cmnd->result); | |
90 | ||
91 | itnim_data = cmnd->device->hostdata; | |
92 | if (itnim_data) { | |
93 | itnim = itnim_data->itnim; | |
94 | if (!cmnd->result && itnim && | |
95 | (bfa_lun_queue_depth > cmnd->device->queue_depth)) { | |
96 | /* Queue depth adjustment for good status completion */ | |
97 | bfad_os_ramp_up_qdepth(itnim, cmnd->device); | |
98 | } else if (cmnd->result == SAM_STAT_TASK_SET_FULL && itnim) { | |
99 | /* qfull handling */ | |
100 | bfad_os_handle_qfull(itnim, cmnd->device); | |
101 | } | |
102 | } | |
103 | ||
104 | cmnd->scsi_done(cmnd); | |
105 | } | |
106 | ||
107 | void | |
108 | bfa_cb_ioim_good_comp(void *drv, struct bfad_ioim_s *dio) | |
109 | { | |
110 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio; | |
111 | struct bfad_itnim_data_s *itnim_data; | |
112 | struct bfad_itnim_s *itnim; | |
113 | ||
114 | cmnd->result = ScsiResult(DID_OK, SCSI_STATUS_GOOD); | |
115 | ||
116 | /* Unmap DMA, if host is NULL, it means a scsi passthru cmd */ | |
117 | if (cmnd->device->host != NULL) | |
118 | scsi_dma_unmap(cmnd); | |
119 | ||
120 | cmnd->host_scribble = NULL; | |
121 | ||
122 | /* Queue depth adjustment */ | |
123 | if (bfa_lun_queue_depth > cmnd->device->queue_depth) { | |
124 | itnim_data = cmnd->device->hostdata; | |
125 | if (itnim_data) { | |
126 | itnim = itnim_data->itnim; | |
127 | if (itnim) | |
128 | bfad_os_ramp_up_qdepth(itnim, cmnd->device); | |
129 | } | |
130 | } | |
131 | ||
132 | cmnd->scsi_done(cmnd); | |
133 | } | |
134 | ||
135 | void | |
136 | bfa_cb_ioim_abort(void *drv, struct bfad_ioim_s *dio) | |
137 | { | |
138 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio; | |
139 | struct bfad_s *bfad = drv; | |
140 | ||
141 | cmnd->result = ScsiResult(DID_ERROR, 0); | |
142 | ||
143 | /* Unmap DMA, if host is NULL, it means a scsi passthru cmd */ | |
144 | if (cmnd->device->host != NULL) | |
145 | scsi_dma_unmap(cmnd); | |
146 | ||
147 | bfa_trc(bfad, cmnd->result); | |
148 | cmnd->host_scribble = NULL; | |
149 | } | |
150 | ||
151 | void | |
152 | bfa_cb_tskim_done(void *bfad, struct bfad_tskim_s *dtsk, | |
153 | enum bfi_tskim_status tsk_status) | |
154 | { | |
155 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dtsk; | |
156 | wait_queue_head_t *wq; | |
157 | ||
158 | cmnd->SCp.Status |= tsk_status << 1; | |
159 | set_bit(IO_DONE_BIT, (unsigned long *)&cmnd->SCp.Status); | |
160 | wq = (wait_queue_head_t *) cmnd->SCp.ptr; | |
161 | cmnd->SCp.ptr = NULL; | |
162 | ||
163 | if (wq) | |
164 | wake_up(wq); | |
165 | } | |
166 | ||
5fbe25c7 | 167 | /* |
7725ccfd JH |
168 | * Scsi_Host_template SCSI host template |
169 | */ | |
5fbe25c7 | 170 | /* |
7725ccfd JH |
171 | * Scsi_Host template entry, returns BFAD PCI info. |
172 | */ | |
173 | static const char * | |
174 | bfad_im_info(struct Scsi_Host *shost) | |
175 | { | |
176 | static char bfa_buf[256]; | |
177 | struct bfad_im_port_s *im_port = | |
178 | (struct bfad_im_port_s *) shost->hostdata[0]; | |
a36c61f9 KG |
179 | struct bfad_s *bfad = im_port->bfad; |
180 | struct bfa_s *bfa = &bfad->bfa; | |
181 | struct bfa_ioc_s *ioc = &bfa->ioc; | |
0a4b1fc0 | 182 | char model[BFA_ADAPTER_MODEL_NAME_LEN]; |
7725ccfd | 183 | |
a36c61f9 | 184 | bfa_get_adapter_model(bfa, model); |
7725ccfd JH |
185 | |
186 | memset(bfa_buf, 0, sizeof(bfa_buf)); | |
a36c61f9 KG |
187 | if (ioc->ctdev) |
188 | snprintf(bfa_buf, sizeof(bfa_buf), | |
189 | "Brocade FCOE Adapter, " "model: %s hwpath: %s driver: %s", | |
190 | model, bfad->pci_name, BFAD_DRIVER_VERSION); | |
191 | else | |
192 | snprintf(bfa_buf, sizeof(bfa_buf), | |
193 | "Brocade FC Adapter, " "model: %s hwpath: %s driver: %s", | |
0a4b1fc0 | 194 | model, bfad->pci_name, BFAD_DRIVER_VERSION); |
a36c61f9 | 195 | |
7725ccfd JH |
196 | return bfa_buf; |
197 | } | |
198 | ||
5fbe25c7 | 199 | /* |
7725ccfd JH |
200 | * Scsi_Host template entry, aborts the specified SCSI command. |
201 | * | |
202 | * Returns: SUCCESS or FAILED. | |
203 | */ | |
204 | static int | |
205 | bfad_im_abort_handler(struct scsi_cmnd *cmnd) | |
206 | { | |
207 | struct Scsi_Host *shost = cmnd->device->host; | |
208 | struct bfad_im_port_s *im_port = | |
209 | (struct bfad_im_port_s *) shost->hostdata[0]; | |
210 | struct bfad_s *bfad = im_port->bfad; | |
211 | struct bfa_ioim_s *hal_io; | |
212 | unsigned long flags; | |
213 | u32 timeout; | |
214 | int rc = FAILED; | |
215 | ||
216 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
217 | hal_io = (struct bfa_ioim_s *) cmnd->host_scribble; | |
218 | if (!hal_io) { | |
219 | /* IO has been completed, retrun success */ | |
220 | rc = SUCCESS; | |
221 | goto out; | |
222 | } | |
223 | if (hal_io->dio != (struct bfad_ioim_s *) cmnd) { | |
224 | rc = FAILED; | |
225 | goto out; | |
226 | } | |
227 | ||
228 | bfa_trc(bfad, hal_io->iotag); | |
a36c61f9 | 229 | BFA_LOG(KERN_INFO, bfad, log_level, "scsi%d: abort cmnd %p iotag %x\n", |
7725ccfd | 230 | im_port->shost->host_no, cmnd, hal_io->iotag); |
a36c61f9 | 231 | (void) bfa_ioim_abort(hal_io); |
7725ccfd JH |
232 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); |
233 | ||
234 | /* Need to wait until the command get aborted */ | |
235 | timeout = 10; | |
236 | while ((struct bfa_ioim_s *) cmnd->host_scribble == hal_io) { | |
237 | set_current_state(TASK_UNINTERRUPTIBLE); | |
238 | schedule_timeout(timeout); | |
239 | if (timeout < 4 * HZ) | |
240 | timeout *= 2; | |
241 | } | |
242 | ||
243 | cmnd->scsi_done(cmnd); | |
244 | bfa_trc(bfad, hal_io->iotag); | |
a36c61f9 KG |
245 | BFA_LOG(KERN_INFO, bfad, log_level, |
246 | "scsi%d: complete abort 0x%p iotag 0x%x\n", | |
7725ccfd JH |
247 | im_port->shost->host_no, cmnd, hal_io->iotag); |
248 | return SUCCESS; | |
249 | out: | |
250 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
251 | return rc; | |
252 | } | |
253 | ||
254 | static bfa_status_t | |
255 | bfad_im_target_reset_send(struct bfad_s *bfad, struct scsi_cmnd *cmnd, | |
256 | struct bfad_itnim_s *itnim) | |
257 | { | |
258 | struct bfa_tskim_s *tskim; | |
259 | struct bfa_itnim_s *bfa_itnim; | |
260 | bfa_status_t rc = BFA_STATUS_OK; | |
261 | ||
7725ccfd JH |
262 | tskim = bfa_tskim_alloc(&bfad->bfa, (struct bfad_tskim_s *) cmnd); |
263 | if (!tskim) { | |
a36c61f9 KG |
264 | BFA_LOG(KERN_ERR, bfad, log_level, |
265 | "target reset, fail to allocate tskim\n"); | |
7725ccfd JH |
266 | rc = BFA_STATUS_FAILED; |
267 | goto out; | |
268 | } | |
269 | ||
270 | /* | |
271 | * Set host_scribble to NULL to avoid aborting a task command if | |
272 | * happens. | |
273 | */ | |
274 | cmnd->host_scribble = NULL; | |
275 | cmnd->SCp.Status = 0; | |
276 | bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim->fcs_itnim); | |
277 | bfa_tskim_start(tskim, bfa_itnim, (lun_t)0, | |
278 | FCP_TM_TARGET_RESET, BFAD_TARGET_RESET_TMO); | |
279 | out: | |
280 | return rc; | |
281 | } | |
282 | ||
5fbe25c7 | 283 | /* |
7725ccfd JH |
284 | * Scsi_Host template entry, resets a LUN and abort its all commands. |
285 | * | |
286 | * Returns: SUCCESS or FAILED. | |
287 | * | |
288 | */ | |
289 | static int | |
290 | bfad_im_reset_lun_handler(struct scsi_cmnd *cmnd) | |
291 | { | |
292 | struct Scsi_Host *shost = cmnd->device->host; | |
293 | struct bfad_im_port_s *im_port = | |
294 | (struct bfad_im_port_s *) shost->hostdata[0]; | |
295 | struct bfad_itnim_data_s *itnim_data = cmnd->device->hostdata; | |
296 | struct bfad_s *bfad = im_port->bfad; | |
297 | struct bfa_tskim_s *tskim; | |
298 | struct bfad_itnim_s *itnim; | |
299 | struct bfa_itnim_s *bfa_itnim; | |
6d154db6 | 300 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq); |
7725ccfd JH |
301 | int rc = SUCCESS; |
302 | unsigned long flags; | |
303 | enum bfi_tskim_status task_status; | |
304 | ||
305 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
306 | itnim = itnim_data->itnim; | |
307 | if (!itnim) { | |
308 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
309 | rc = FAILED; | |
310 | goto out; | |
311 | } | |
312 | ||
313 | tskim = bfa_tskim_alloc(&bfad->bfa, (struct bfad_tskim_s *) cmnd); | |
314 | if (!tskim) { | |
a36c61f9 | 315 | BFA_LOG(KERN_ERR, bfad, log_level, |
7725ccfd JH |
316 | "LUN reset, fail to allocate tskim"); |
317 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
318 | rc = FAILED; | |
319 | goto out; | |
320 | } | |
321 | ||
5fbe25c7 | 322 | /* |
7725ccfd JH |
323 | * Set host_scribble to NULL to avoid aborting a task command |
324 | * if happens. | |
325 | */ | |
326 | cmnd->host_scribble = NULL; | |
327 | cmnd->SCp.ptr = (char *)&wq; | |
328 | cmnd->SCp.Status = 0; | |
329 | bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim->fcs_itnim); | |
330 | bfa_tskim_start(tskim, bfa_itnim, | |
331 | bfad_int_to_lun(cmnd->device->lun), | |
332 | FCP_TM_LUN_RESET, BFAD_LUN_RESET_TMO); | |
333 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
334 | ||
335 | wait_event(wq, test_bit(IO_DONE_BIT, | |
336 | (unsigned long *)&cmnd->SCp.Status)); | |
337 | ||
338 | task_status = cmnd->SCp.Status >> 1; | |
339 | if (task_status != BFI_TSKIM_STS_OK) { | |
a36c61f9 KG |
340 | BFA_LOG(KERN_ERR, bfad, log_level, |
341 | "LUN reset failure, status: %d\n", task_status); | |
7725ccfd JH |
342 | rc = FAILED; |
343 | } | |
344 | ||
345 | out: | |
346 | return rc; | |
347 | } | |
348 | ||
5fbe25c7 | 349 | /* |
7725ccfd JH |
350 | * Scsi_Host template entry, resets the bus and abort all commands. |
351 | */ | |
352 | static int | |
353 | bfad_im_reset_bus_handler(struct scsi_cmnd *cmnd) | |
354 | { | |
355 | struct Scsi_Host *shost = cmnd->device->host; | |
356 | struct bfad_im_port_s *im_port = | |
357 | (struct bfad_im_port_s *) shost->hostdata[0]; | |
358 | struct bfad_s *bfad = im_port->bfad; | |
359 | struct bfad_itnim_s *itnim; | |
360 | unsigned long flags; | |
361 | u32 i, rc, err_cnt = 0; | |
6d154db6 | 362 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq); |
7725ccfd JH |
363 | enum bfi_tskim_status task_status; |
364 | ||
365 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
366 | for (i = 0; i < MAX_FCP_TARGET; i++) { | |
367 | itnim = bfad_os_get_itnim(im_port, i); | |
368 | if (itnim) { | |
369 | cmnd->SCp.ptr = (char *)&wq; | |
370 | rc = bfad_im_target_reset_send(bfad, cmnd, itnim); | |
371 | if (rc != BFA_STATUS_OK) { | |
372 | err_cnt++; | |
373 | continue; | |
374 | } | |
375 | ||
376 | /* wait target reset to complete */ | |
377 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
378 | wait_event(wq, test_bit(IO_DONE_BIT, | |
379 | (unsigned long *)&cmnd->SCp.Status)); | |
380 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
381 | ||
382 | task_status = cmnd->SCp.Status >> 1; | |
383 | if (task_status != BFI_TSKIM_STS_OK) { | |
a36c61f9 | 384 | BFA_LOG(KERN_ERR, bfad, log_level, |
7725ccfd JH |
385 | "target reset failure," |
386 | " status: %d\n", task_status); | |
387 | err_cnt++; | |
388 | } | |
389 | } | |
390 | } | |
391 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
392 | ||
393 | if (err_cnt) | |
394 | return FAILED; | |
395 | ||
396 | return SUCCESS; | |
397 | } | |
398 | ||
5fbe25c7 | 399 | /* |
7725ccfd JH |
400 | * Scsi_Host template entry slave_destroy. |
401 | */ | |
402 | static void | |
403 | bfad_im_slave_destroy(struct scsi_device *sdev) | |
404 | { | |
405 | sdev->hostdata = NULL; | |
406 | return; | |
407 | } | |
408 | ||
5fbe25c7 | 409 | /* |
7725ccfd JH |
410 | * BFA FCS itnim callbacks |
411 | */ | |
412 | ||
5fbe25c7 | 413 | /* |
7725ccfd JH |
414 | * BFA FCS itnim alloc callback, after successful PRLI |
415 | * Context: Interrupt | |
416 | */ | |
417 | void | |
418 | bfa_fcb_itnim_alloc(struct bfad_s *bfad, struct bfa_fcs_itnim_s **itnim, | |
419 | struct bfad_itnim_s **itnim_drv) | |
420 | { | |
421 | *itnim_drv = kzalloc(sizeof(struct bfad_itnim_s), GFP_ATOMIC); | |
422 | if (*itnim_drv == NULL) | |
423 | return; | |
424 | ||
425 | (*itnim_drv)->im = bfad->im; | |
426 | *itnim = &(*itnim_drv)->fcs_itnim; | |
427 | (*itnim_drv)->state = ITNIM_STATE_NONE; | |
428 | ||
429 | /* | |
430 | * Initiaze the itnim_work | |
431 | */ | |
432 | INIT_WORK(&(*itnim_drv)->itnim_work, bfad_im_itnim_work_handler); | |
433 | bfad->bfad_flags |= BFAD_RPORT_ONLINE; | |
434 | } | |
435 | ||
5fbe25c7 | 436 | /* |
7725ccfd JH |
437 | * BFA FCS itnim free callback. |
438 | * Context: Interrupt. bfad_lock is held | |
439 | */ | |
440 | void | |
441 | bfa_fcb_itnim_free(struct bfad_s *bfad, struct bfad_itnim_s *itnim_drv) | |
442 | { | |
443 | struct bfad_port_s *port; | |
444 | wwn_t wwpn; | |
445 | u32 fcid; | |
446 | char wwpn_str[32], fcid_str[16]; | |
a36c61f9 | 447 | struct bfad_im_s *im = itnim_drv->im; |
7725ccfd JH |
448 | |
449 | /* online to free state transtion should not happen */ | |
450 | bfa_assert(itnim_drv->state != ITNIM_STATE_ONLINE); | |
451 | ||
452 | itnim_drv->queue_work = 1; | |
453 | /* offline request is not yet done, use the same request to free */ | |
454 | if (itnim_drv->state == ITNIM_STATE_OFFLINE_PENDING) | |
455 | itnim_drv->queue_work = 0; | |
456 | ||
457 | itnim_drv->state = ITNIM_STATE_FREE; | |
458 | port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim); | |
459 | itnim_drv->im_port = port->im_port; | |
460 | wwpn = bfa_fcs_itnim_get_pwwn(&itnim_drv->fcs_itnim); | |
461 | fcid = bfa_fcs_itnim_get_fcid(&itnim_drv->fcs_itnim); | |
462 | wwn2str(wwpn_str, wwpn); | |
463 | fcid2str(fcid_str, fcid); | |
a36c61f9 KG |
464 | BFA_LOG(KERN_INFO, bfad, log_level, |
465 | "ITNIM FREE scsi%d: FCID: %s WWPN: %s\n", | |
7725ccfd JH |
466 | port->im_port->shost->host_no, |
467 | fcid_str, wwpn_str); | |
a36c61f9 KG |
468 | |
469 | /* ITNIM processing */ | |
470 | if (itnim_drv->queue_work) | |
471 | queue_work(im->drv_workq, &itnim_drv->itnim_work); | |
7725ccfd JH |
472 | } |
473 | ||
5fbe25c7 | 474 | /* |
7725ccfd JH |
475 | * BFA FCS itnim online callback. |
476 | * Context: Interrupt. bfad_lock is held | |
477 | */ | |
478 | void | |
479 | bfa_fcb_itnim_online(struct bfad_itnim_s *itnim_drv) | |
480 | { | |
481 | struct bfad_port_s *port; | |
a36c61f9 | 482 | struct bfad_im_s *im = itnim_drv->im; |
7725ccfd JH |
483 | |
484 | itnim_drv->bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim_drv->fcs_itnim); | |
485 | port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim); | |
486 | itnim_drv->state = ITNIM_STATE_ONLINE; | |
487 | itnim_drv->queue_work = 1; | |
488 | itnim_drv->im_port = port->im_port; | |
a36c61f9 KG |
489 | |
490 | /* ITNIM processing */ | |
491 | if (itnim_drv->queue_work) | |
492 | queue_work(im->drv_workq, &itnim_drv->itnim_work); | |
7725ccfd JH |
493 | } |
494 | ||
5fbe25c7 | 495 | /* |
7725ccfd JH |
496 | * BFA FCS itnim offline callback. |
497 | * Context: Interrupt. bfad_lock is held | |
498 | */ | |
499 | void | |
500 | bfa_fcb_itnim_offline(struct bfad_itnim_s *itnim_drv) | |
501 | { | |
502 | struct bfad_port_s *port; | |
503 | struct bfad_s *bfad; | |
a36c61f9 | 504 | struct bfad_im_s *im = itnim_drv->im; |
7725ccfd JH |
505 | |
506 | port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim); | |
507 | bfad = port->bfad; | |
508 | if ((bfad->pport.flags & BFAD_PORT_DELETE) || | |
509 | (port->flags & BFAD_PORT_DELETE)) { | |
510 | itnim_drv->state = ITNIM_STATE_OFFLINE; | |
511 | return; | |
512 | } | |
513 | itnim_drv->im_port = port->im_port; | |
514 | itnim_drv->state = ITNIM_STATE_OFFLINE_PENDING; | |
515 | itnim_drv->queue_work = 1; | |
7725ccfd | 516 | |
a36c61f9 KG |
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 | * Allocate a Scsi_Host for a port. |
524 | */ | |
525 | int | |
b504293f | 526 | bfad_im_scsi_host_alloc(struct bfad_s *bfad, struct bfad_im_port_s *im_port, |
a36c61f9 | 527 | struct device *dev) |
7725ccfd JH |
528 | { |
529 | int error = 1; | |
530 | ||
42b426ec | 531 | mutex_lock(&bfad_mutex); |
7725ccfd | 532 | if (!idr_pre_get(&bfad_im_port_index, GFP_KERNEL)) { |
42b426ec | 533 | mutex_unlock(&bfad_mutex); |
7725ccfd JH |
534 | printk(KERN_WARNING "idr_pre_get failure\n"); |
535 | goto out; | |
536 | } | |
537 | ||
538 | error = idr_get_new(&bfad_im_port_index, im_port, | |
539 | &im_port->idr_id); | |
540 | if (error) { | |
42b426ec | 541 | mutex_unlock(&bfad_mutex); |
7725ccfd JH |
542 | printk(KERN_WARNING "idr_get_new failure\n"); |
543 | goto out; | |
544 | } | |
545 | ||
42b426ec JH |
546 | mutex_unlock(&bfad_mutex); |
547 | ||
7725ccfd JH |
548 | im_port->shost = bfad_os_scsi_host_alloc(im_port, bfad); |
549 | if (!im_port->shost) { | |
550 | error = 1; | |
551 | goto out_free_idr; | |
552 | } | |
553 | ||
554 | im_port->shost->hostdata[0] = (unsigned long)im_port; | |
555 | im_port->shost->unique_id = im_port->idr_id; | |
556 | im_port->shost->this_id = -1; | |
557 | im_port->shost->max_id = MAX_FCP_TARGET; | |
558 | im_port->shost->max_lun = MAX_FCP_LUN; | |
559 | im_port->shost->max_cmd_len = 16; | |
560 | im_port->shost->can_queue = bfad->cfg_data.ioc_queue_depth; | |
b504293f JH |
561 | if (im_port->port->pvb_type == BFAD_PORT_PHYS_BASE) |
562 | im_port->shost->transportt = bfad_im_scsi_transport_template; | |
563 | else | |
564 | im_port->shost->transportt = | |
565 | bfad_im_scsi_vport_transport_template; | |
7725ccfd | 566 | |
c54d557c | 567 | error = scsi_add_host_with_dma(im_port->shost, dev, &bfad->pcidev->dev); |
7725ccfd | 568 | if (error) { |
b504293f | 569 | printk(KERN_WARNING "scsi_add_host failure %d\n", error); |
7725ccfd JH |
570 | goto out_fc_rel; |
571 | } | |
572 | ||
573 | /* setup host fixed attribute if the lk supports */ | |
574 | bfad_os_fc_host_init(im_port); | |
575 | ||
576 | return 0; | |
577 | ||
578 | out_fc_rel: | |
579 | scsi_host_put(im_port->shost); | |
d9883548 | 580 | im_port->shost = NULL; |
7725ccfd | 581 | out_free_idr: |
42b426ec | 582 | mutex_lock(&bfad_mutex); |
7725ccfd | 583 | idr_remove(&bfad_im_port_index, im_port->idr_id); |
42b426ec | 584 | mutex_unlock(&bfad_mutex); |
7725ccfd JH |
585 | out: |
586 | return error; | |
587 | } | |
588 | ||
589 | void | |
590 | bfad_im_scsi_host_free(struct bfad_s *bfad, struct bfad_im_port_s *im_port) | |
591 | { | |
7725ccfd | 592 | bfa_trc(bfad, bfad->inst_no); |
a36c61f9 | 593 | BFA_LOG(KERN_INFO, bfad, log_level, "Free scsi%d\n", |
7725ccfd JH |
594 | im_port->shost->host_no); |
595 | ||
596 | fc_remove_host(im_port->shost); | |
597 | ||
598 | scsi_remove_host(im_port->shost); | |
599 | scsi_host_put(im_port->shost); | |
600 | ||
42b426ec | 601 | mutex_lock(&bfad_mutex); |
7725ccfd | 602 | idr_remove(&bfad_im_port_index, im_port->idr_id); |
42b426ec | 603 | mutex_unlock(&bfad_mutex); |
7725ccfd JH |
604 | } |
605 | ||
606 | static void | |
607 | bfad_im_port_delete_handler(struct work_struct *work) | |
608 | { | |
609 | struct bfad_im_port_s *im_port = | |
610 | container_of(work, struct bfad_im_port_s, port_delete_work); | |
611 | ||
b504293f JH |
612 | if (im_port->port->pvb_type != BFAD_PORT_PHYS_BASE) { |
613 | im_port->flags |= BFAD_PORT_DELETE; | |
614 | fc_vport_terminate(im_port->fc_vport); | |
615 | } | |
7725ccfd JH |
616 | } |
617 | ||
618 | bfa_status_t | |
619 | bfad_im_port_new(struct bfad_s *bfad, struct bfad_port_s *port) | |
620 | { | |
621 | int rc = BFA_STATUS_OK; | |
622 | struct bfad_im_port_s *im_port; | |
623 | ||
624 | im_port = kzalloc(sizeof(struct bfad_im_port_s), GFP_ATOMIC); | |
625 | if (im_port == NULL) { | |
626 | rc = BFA_STATUS_ENOMEM; | |
627 | goto ext; | |
628 | } | |
629 | port->im_port = im_port; | |
630 | im_port->port = port; | |
631 | im_port->bfad = bfad; | |
632 | ||
633 | INIT_WORK(&im_port->port_delete_work, bfad_im_port_delete_handler); | |
634 | INIT_LIST_HEAD(&im_port->itnim_mapped_list); | |
635 | INIT_LIST_HEAD(&im_port->binding_list); | |
636 | ||
637 | ext: | |
638 | return rc; | |
639 | } | |
640 | ||
641 | void | |
642 | bfad_im_port_delete(struct bfad_s *bfad, struct bfad_port_s *port) | |
643 | { | |
644 | struct bfad_im_port_s *im_port = port->im_port; | |
645 | ||
a36c61f9 | 646 | queue_work(bfad->im->drv_workq, |
7725ccfd JH |
647 | &im_port->port_delete_work); |
648 | } | |
649 | ||
650 | void | |
651 | bfad_im_port_clean(struct bfad_im_port_s *im_port) | |
652 | { | |
653 | struct bfad_fcp_binding *bp, *bp_new; | |
654 | unsigned long flags; | |
655 | struct bfad_s *bfad = im_port->bfad; | |
656 | ||
657 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
658 | list_for_each_entry_safe(bp, bp_new, &im_port->binding_list, | |
659 | list_entry) { | |
660 | list_del(&bp->list_entry); | |
661 | kfree(bp); | |
662 | } | |
663 | ||
664 | /* the itnim_mapped_list must be empty at this time */ | |
665 | bfa_assert(list_empty(&im_port->itnim_mapped_list)); | |
666 | ||
667 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
668 | } | |
669 | ||
7725ccfd JH |
670 | bfa_status_t |
671 | bfad_im_probe(struct bfad_s *bfad) | |
672 | { | |
673 | struct bfad_im_s *im; | |
674 | bfa_status_t rc = BFA_STATUS_OK; | |
675 | ||
676 | im = kzalloc(sizeof(struct bfad_im_s), GFP_KERNEL); | |
677 | if (im == NULL) { | |
678 | rc = BFA_STATUS_ENOMEM; | |
679 | goto ext; | |
680 | } | |
681 | ||
682 | bfad->im = im; | |
683 | im->bfad = bfad; | |
684 | ||
685 | if (bfad_os_thread_workq(bfad) != BFA_STATUS_OK) { | |
686 | kfree(im); | |
687 | rc = BFA_STATUS_FAILED; | |
688 | } | |
689 | ||
690 | ext: | |
691 | return rc; | |
692 | } | |
693 | ||
694 | void | |
695 | bfad_im_probe_undo(struct bfad_s *bfad) | |
696 | { | |
697 | if (bfad->im) { | |
698 | bfad_os_destroy_workq(bfad->im); | |
699 | kfree(bfad->im); | |
700 | bfad->im = NULL; | |
701 | } | |
702 | } | |
703 | ||
7725ccfd JH |
704 | struct Scsi_Host * |
705 | bfad_os_scsi_host_alloc(struct bfad_im_port_s *im_port, struct bfad_s *bfad) | |
706 | { | |
707 | struct scsi_host_template *sht; | |
708 | ||
709 | if (im_port->port->pvb_type == BFAD_PORT_PHYS_BASE) | |
710 | sht = &bfad_im_scsi_host_template; | |
711 | else | |
712 | sht = &bfad_im_vport_template; | |
713 | ||
714 | sht->sg_tablesize = bfad->cfg_data.io_max_sge; | |
715 | ||
716 | return scsi_host_alloc(sht, sizeof(unsigned long)); | |
717 | } | |
718 | ||
719 | void | |
720 | bfad_os_scsi_host_free(struct bfad_s *bfad, struct bfad_im_port_s *im_port) | |
721 | { | |
b504293f JH |
722 | if (!(im_port->flags & BFAD_PORT_DELETE)) |
723 | flush_workqueue(bfad->im->drv_workq); | |
7725ccfd JH |
724 | bfad_im_scsi_host_free(im_port->bfad, im_port); |
725 | bfad_im_port_clean(im_port); | |
726 | kfree(im_port); | |
727 | } | |
728 | ||
729 | void | |
730 | bfad_os_destroy_workq(struct bfad_im_s *im) | |
731 | { | |
732 | if (im && im->drv_workq) { | |
a36c61f9 | 733 | flush_workqueue(im->drv_workq); |
7725ccfd JH |
734 | destroy_workqueue(im->drv_workq); |
735 | im->drv_workq = NULL; | |
736 | } | |
737 | } | |
738 | ||
739 | bfa_status_t | |
740 | bfad_os_thread_workq(struct bfad_s *bfad) | |
741 | { | |
742 | struct bfad_im_s *im = bfad->im; | |
743 | ||
744 | bfa_trc(bfad, 0); | |
a36c61f9 | 745 | snprintf(im->drv_workq_name, KOBJ_NAME_LEN, "bfad_wq_%d", |
7725ccfd JH |
746 | bfad->inst_no); |
747 | im->drv_workq = create_singlethread_workqueue(im->drv_workq_name); | |
748 | if (!im->drv_workq) | |
749 | return BFA_STATUS_FAILED; | |
750 | ||
751 | return BFA_STATUS_OK; | |
752 | } | |
753 | ||
5fbe25c7 | 754 | /* |
7725ccfd JH |
755 | * Scsi_Host template entry. |
756 | * | |
757 | * Description: | |
758 | * OS entry point to adjust the queue_depths on a per-device basis. | |
759 | * Called once per device during the bus scan. | |
760 | * Return non-zero if fails. | |
761 | */ | |
762 | static int | |
763 | bfad_im_slave_configure(struct scsi_device *sdev) | |
764 | { | |
765 | if (sdev->tagged_supported) | |
766 | scsi_activate_tcq(sdev, bfa_lun_queue_depth); | |
767 | else | |
768 | scsi_deactivate_tcq(sdev, bfa_lun_queue_depth); | |
769 | ||
770 | return 0; | |
771 | } | |
772 | ||
773 | struct scsi_host_template bfad_im_scsi_host_template = { | |
774 | .module = THIS_MODULE, | |
775 | .name = BFAD_DRIVER_NAME, | |
776 | .info = bfad_im_info, | |
777 | .queuecommand = bfad_im_queuecommand, | |
778 | .eh_abort_handler = bfad_im_abort_handler, | |
779 | .eh_device_reset_handler = bfad_im_reset_lun_handler, | |
780 | .eh_bus_reset_handler = bfad_im_reset_bus_handler, | |
781 | ||
782 | .slave_alloc = bfad_im_slave_alloc, | |
783 | .slave_configure = bfad_im_slave_configure, | |
784 | .slave_destroy = bfad_im_slave_destroy, | |
785 | ||
786 | .this_id = -1, | |
787 | .sg_tablesize = BFAD_IO_MAX_SGE, | |
788 | .cmd_per_lun = 3, | |
789 | .use_clustering = ENABLE_CLUSTERING, | |
790 | .shost_attrs = bfad_im_host_attrs, | |
791 | .max_sectors = 0xFFFF, | |
792 | }; | |
793 | ||
794 | struct scsi_host_template bfad_im_vport_template = { | |
795 | .module = THIS_MODULE, | |
796 | .name = BFAD_DRIVER_NAME, | |
797 | .info = bfad_im_info, | |
798 | .queuecommand = bfad_im_queuecommand, | |
799 | .eh_abort_handler = bfad_im_abort_handler, | |
800 | .eh_device_reset_handler = bfad_im_reset_lun_handler, | |
801 | .eh_bus_reset_handler = bfad_im_reset_bus_handler, | |
802 | ||
803 | .slave_alloc = bfad_im_slave_alloc, | |
804 | .slave_configure = bfad_im_slave_configure, | |
805 | .slave_destroy = bfad_im_slave_destroy, | |
806 | ||
807 | .this_id = -1, | |
808 | .sg_tablesize = BFAD_IO_MAX_SGE, | |
809 | .cmd_per_lun = 3, | |
810 | .use_clustering = ENABLE_CLUSTERING, | |
811 | .shost_attrs = bfad_im_vport_attrs, | |
812 | .max_sectors = 0xFFFF, | |
813 | }; | |
814 | ||
7725ccfd JH |
815 | bfa_status_t |
816 | bfad_im_module_init(void) | |
817 | { | |
818 | bfad_im_scsi_transport_template = | |
819 | fc_attach_transport(&bfad_im_fc_function_template); | |
820 | if (!bfad_im_scsi_transport_template) | |
821 | return BFA_STATUS_ENOMEM; | |
822 | ||
b504293f JH |
823 | bfad_im_scsi_vport_transport_template = |
824 | fc_attach_transport(&bfad_im_vport_fc_function_template); | |
825 | if (!bfad_im_scsi_vport_transport_template) { | |
826 | fc_release_transport(bfad_im_scsi_transport_template); | |
827 | return BFA_STATUS_ENOMEM; | |
828 | } | |
829 | ||
7725ccfd JH |
830 | return BFA_STATUS_OK; |
831 | } | |
832 | ||
833 | void | |
834 | bfad_im_module_exit(void) | |
835 | { | |
836 | if (bfad_im_scsi_transport_template) | |
837 | fc_release_transport(bfad_im_scsi_transport_template); | |
a36c61f9 | 838 | |
b504293f JH |
839 | if (bfad_im_scsi_vport_transport_template) |
840 | fc_release_transport(bfad_im_scsi_vport_transport_template); | |
7725ccfd JH |
841 | } |
842 | ||
7725ccfd JH |
843 | void |
844 | bfad_os_ramp_up_qdepth(struct bfad_itnim_s *itnim, struct scsi_device *sdev) | |
845 | { | |
846 | struct scsi_device *tmp_sdev; | |
847 | ||
848 | if (((jiffies - itnim->last_ramp_up_time) > | |
849 | BFA_QUEUE_FULL_RAMP_UP_TIME * HZ) && | |
850 | ((jiffies - itnim->last_queue_full_time) > | |
851 | BFA_QUEUE_FULL_RAMP_UP_TIME * HZ)) { | |
852 | shost_for_each_device(tmp_sdev, sdev->host) { | |
853 | if (bfa_lun_queue_depth > tmp_sdev->queue_depth) { | |
854 | if (tmp_sdev->id != sdev->id) | |
855 | continue; | |
856 | if (tmp_sdev->ordered_tags) | |
857 | scsi_adjust_queue_depth(tmp_sdev, | |
858 | MSG_ORDERED_TAG, | |
859 | tmp_sdev->queue_depth + 1); | |
860 | else | |
861 | scsi_adjust_queue_depth(tmp_sdev, | |
862 | MSG_SIMPLE_TAG, | |
863 | tmp_sdev->queue_depth + 1); | |
864 | ||
865 | itnim->last_ramp_up_time = jiffies; | |
866 | } | |
867 | } | |
868 | } | |
869 | } | |
870 | ||
871 | void | |
872 | bfad_os_handle_qfull(struct bfad_itnim_s *itnim, struct scsi_device *sdev) | |
873 | { | |
874 | struct scsi_device *tmp_sdev; | |
875 | ||
876 | itnim->last_queue_full_time = jiffies; | |
877 | ||
878 | shost_for_each_device(tmp_sdev, sdev->host) { | |
879 | if (tmp_sdev->id != sdev->id) | |
880 | continue; | |
881 | scsi_track_queue_full(tmp_sdev, tmp_sdev->queue_depth - 1); | |
882 | } | |
883 | } | |
884 | ||
7725ccfd JH |
885 | struct bfad_itnim_s * |
886 | bfad_os_get_itnim(struct bfad_im_port_s *im_port, int id) | |
887 | { | |
888 | struct bfad_itnim_s *itnim = NULL; | |
889 | ||
890 | /* Search the mapped list for this target ID */ | |
891 | list_for_each_entry(itnim, &im_port->itnim_mapped_list, list_entry) { | |
892 | if (id == itnim->scsi_tgt_id) | |
893 | return itnim; | |
894 | } | |
895 | ||
896 | return NULL; | |
897 | } | |
898 | ||
5fbe25c7 | 899 | /* |
7725ccfd JH |
900 | * Scsi_Host template entry slave_alloc |
901 | */ | |
902 | static int | |
903 | bfad_im_slave_alloc(struct scsi_device *sdev) | |
904 | { | |
905 | struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); | |
906 | ||
907 | if (!rport || fc_remote_port_chkready(rport)) | |
908 | return -ENXIO; | |
909 | ||
910 | sdev->hostdata = rport->dd_data; | |
911 | ||
912 | return 0; | |
913 | } | |
914 | ||
a36c61f9 KG |
915 | static u32 |
916 | bfad_im_supported_speeds(struct bfa_s *bfa) | |
917 | { | |
e0a08a30 | 918 | struct bfa_ioc_attr_s *ioc_attr; |
a36c61f9 KG |
919 | u32 supported_speed = 0; |
920 | ||
e0a08a30 JH |
921 | ioc_attr = kzalloc(sizeof(struct bfa_ioc_attr_s), GFP_KERNEL); |
922 | if (!ioc_attr) | |
923 | return 0; | |
924 | ||
925 | bfa_get_attr(bfa, ioc_attr); | |
926 | if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_8GBPS) { | |
927 | if (ioc_attr->adapter_attr.is_mezz) { | |
a36c61f9 KG |
928 | supported_speed |= FC_PORTSPEED_8GBIT | |
929 | FC_PORTSPEED_4GBIT | | |
930 | FC_PORTSPEED_2GBIT | FC_PORTSPEED_1GBIT; | |
931 | } else { | |
932 | supported_speed |= FC_PORTSPEED_8GBIT | | |
933 | FC_PORTSPEED_4GBIT | | |
934 | FC_PORTSPEED_2GBIT; | |
935 | } | |
e0a08a30 | 936 | } else if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_4GBPS) { |
a36c61f9 KG |
937 | supported_speed |= FC_PORTSPEED_4GBIT | FC_PORTSPEED_2GBIT | |
938 | FC_PORTSPEED_1GBIT; | |
e0a08a30 | 939 | } else if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_10GBPS) { |
a36c61f9 KG |
940 | supported_speed |= FC_PORTSPEED_10GBIT; |
941 | } | |
e0a08a30 | 942 | kfree(ioc_attr); |
a36c61f9 KG |
943 | return supported_speed; |
944 | } | |
945 | ||
7725ccfd JH |
946 | void |
947 | bfad_os_fc_host_init(struct bfad_im_port_s *im_port) | |
948 | { | |
949 | struct Scsi_Host *host = im_port->shost; | |
950 | struct bfad_s *bfad = im_port->bfad; | |
951 | struct bfad_port_s *port = im_port->port; | |
a36c61f9 | 952 | char symname[BFA_SYMNAME_MAXLEN]; |
e0a08a30 | 953 | struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(&bfad->bfa); |
7725ccfd JH |
954 | |
955 | fc_host_node_name(host) = | |
ba816ea8 | 956 | cpu_to_be64((bfa_fcs_lport_get_nwwn(port->fcs_port))); |
7725ccfd | 957 | fc_host_port_name(host) = |
ba816ea8 | 958 | cpu_to_be64((bfa_fcs_lport_get_pwwn(port->fcs_port))); |
b504293f | 959 | fc_host_max_npiv_vports(host) = bfa_lps_get_max_vport(&bfad->bfa); |
7725ccfd JH |
960 | |
961 | fc_host_supported_classes(host) = FC_COS_CLASS3; | |
962 | ||
963 | memset(fc_host_supported_fc4s(host), 0, | |
964 | sizeof(fc_host_supported_fc4s(host))); | |
a36c61f9 | 965 | if (supported_fc4s & BFA_LPORT_ROLE_FCP_IM) |
7725ccfd JH |
966 | /* For FCP type 0x08 */ |
967 | fc_host_supported_fc4s(host)[2] = 1; | |
7725ccfd JH |
968 | /* For fibre channel services type 0x20 */ |
969 | fc_host_supported_fc4s(host)[7] = 1; | |
970 | ||
e0a08a30 | 971 | strncpy(symname, bfad->bfa_fcs.fabric.bport.port_cfg.sym_name.symname, |
a36c61f9 KG |
972 | BFA_SYMNAME_MAXLEN); |
973 | sprintf(fc_host_symbolic_name(host), "%s", symname); | |
7725ccfd | 974 | |
a36c61f9 | 975 | fc_host_supported_speeds(host) = bfad_im_supported_speeds(&bfad->bfa); |
5fbe25c7 | 976 | fc_host_maxframe_size(host) = fcport->cfg.maxfrsize; |
7725ccfd JH |
977 | } |
978 | ||
979 | static void | |
980 | bfad_im_fc_rport_add(struct bfad_im_port_s *im_port, struct bfad_itnim_s *itnim) | |
981 | { | |
982 | struct fc_rport_identifiers rport_ids; | |
983 | struct fc_rport *fc_rport; | |
984 | struct bfad_itnim_data_s *itnim_data; | |
985 | ||
986 | rport_ids.node_name = | |
ba816ea8 | 987 | cpu_to_be64(bfa_fcs_itnim_get_nwwn(&itnim->fcs_itnim)); |
7725ccfd | 988 | rport_ids.port_name = |
ba816ea8 | 989 | cpu_to_be64(bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim)); |
7725ccfd JH |
990 | rport_ids.port_id = |
991 | bfa_os_hton3b(bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim)); | |
992 | rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; | |
993 | ||
994 | itnim->fc_rport = fc_rport = | |
995 | fc_remote_port_add(im_port->shost, 0, &rport_ids); | |
996 | ||
997 | if (!fc_rport) | |
998 | return; | |
999 | ||
1000 | fc_rport->maxframe_size = | |
1001 | bfa_fcs_itnim_get_maxfrsize(&itnim->fcs_itnim); | |
1002 | fc_rport->supported_classes = bfa_fcs_itnim_get_cos(&itnim->fcs_itnim); | |
1003 | ||
1004 | itnim_data = fc_rport->dd_data; | |
1005 | itnim_data->itnim = itnim; | |
1006 | ||
1007 | rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; | |
1008 | ||
1009 | if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) | |
1010 | fc_remote_port_rolechg(fc_rport, rport_ids.roles); | |
1011 | ||
1012 | if ((fc_rport->scsi_target_id != -1) | |
1013 | && (fc_rport->scsi_target_id < MAX_FCP_TARGET)) | |
1014 | itnim->scsi_tgt_id = fc_rport->scsi_target_id; | |
1015 | ||
1016 | return; | |
1017 | } | |
1018 | ||
5fbe25c7 | 1019 | /* |
7725ccfd JH |
1020 | * Work queue handler using FC transport service |
1021 | * Context: kernel | |
1022 | */ | |
1023 | static void | |
1024 | bfad_im_itnim_work_handler(struct work_struct *work) | |
1025 | { | |
1026 | struct bfad_itnim_s *itnim = container_of(work, struct bfad_itnim_s, | |
1027 | itnim_work); | |
1028 | struct bfad_im_s *im = itnim->im; | |
1029 | struct bfad_s *bfad = im->bfad; | |
1030 | struct bfad_im_port_s *im_port; | |
1031 | unsigned long flags; | |
1032 | struct fc_rport *fc_rport; | |
1033 | wwn_t wwpn; | |
1034 | u32 fcid; | |
1035 | char wwpn_str[32], fcid_str[16]; | |
1036 | ||
1037 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1038 | im_port = itnim->im_port; | |
1039 | bfa_trc(bfad, itnim->state); | |
1040 | switch (itnim->state) { | |
1041 | case ITNIM_STATE_ONLINE: | |
1042 | if (!itnim->fc_rport) { | |
1043 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1044 | bfad_im_fc_rport_add(im_port, itnim); | |
1045 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1046 | wwpn = bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim); | |
1047 | fcid = bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim); | |
1048 | wwn2str(wwpn_str, wwpn); | |
1049 | fcid2str(fcid_str, fcid); | |
1050 | list_add_tail(&itnim->list_entry, | |
1051 | &im_port->itnim_mapped_list); | |
a36c61f9 KG |
1052 | BFA_LOG(KERN_INFO, bfad, log_level, |
1053 | "ITNIM ONLINE Target: %d:0:%d " | |
1054 | "FCID: %s WWPN: %s\n", | |
7725ccfd JH |
1055 | im_port->shost->host_no, |
1056 | itnim->scsi_tgt_id, | |
1057 | fcid_str, wwpn_str); | |
1058 | } else { | |
1059 | printk(KERN_WARNING | |
1060 | "%s: itnim %llx is already in online state\n", | |
f8ceafde | 1061 | __func__, |
7725ccfd JH |
1062 | bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim)); |
1063 | } | |
1064 | ||
1065 | break; | |
1066 | case ITNIM_STATE_OFFLINE_PENDING: | |
1067 | itnim->state = ITNIM_STATE_OFFLINE; | |
1068 | if (itnim->fc_rport) { | |
1069 | fc_rport = itnim->fc_rport; | |
1070 | ((struct bfad_itnim_data_s *) | |
1071 | fc_rport->dd_data)->itnim = NULL; | |
1072 | itnim->fc_rport = NULL; | |
1073 | if (!(im_port->port->flags & BFAD_PORT_DELETE)) { | |
1074 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1075 | fc_rport->dev_loss_tmo = | |
1076 | bfa_fcpim_path_tov_get(&bfad->bfa) + 1; | |
1077 | fc_remote_port_delete(fc_rport); | |
1078 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1079 | } | |
1080 | wwpn = bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim); | |
1081 | fcid = bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim); | |
1082 | wwn2str(wwpn_str, wwpn); | |
1083 | fcid2str(fcid_str, fcid); | |
1084 | list_del(&itnim->list_entry); | |
a36c61f9 KG |
1085 | BFA_LOG(KERN_INFO, bfad, log_level, |
1086 | "ITNIM OFFLINE Target: %d:0:%d " | |
1087 | "FCID: %s WWPN: %s\n", | |
7725ccfd JH |
1088 | im_port->shost->host_no, |
1089 | itnim->scsi_tgt_id, | |
1090 | fcid_str, wwpn_str); | |
1091 | } | |
1092 | break; | |
1093 | case ITNIM_STATE_FREE: | |
1094 | if (itnim->fc_rport) { | |
1095 | fc_rport = itnim->fc_rport; | |
1096 | ((struct bfad_itnim_data_s *) | |
1097 | fc_rport->dd_data)->itnim = NULL; | |
1098 | itnim->fc_rport = NULL; | |
1099 | if (!(im_port->port->flags & BFAD_PORT_DELETE)) { | |
1100 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1101 | fc_rport->dev_loss_tmo = | |
1102 | bfa_fcpim_path_tov_get(&bfad->bfa) + 1; | |
1103 | fc_remote_port_delete(fc_rport); | |
1104 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1105 | } | |
1106 | list_del(&itnim->list_entry); | |
1107 | } | |
1108 | ||
1109 | kfree(itnim); | |
1110 | break; | |
1111 | default: | |
1112 | bfa_assert(0); | |
1113 | break; | |
1114 | } | |
1115 | ||
1116 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1117 | } | |
1118 | ||
5fbe25c7 | 1119 | /* |
7725ccfd JH |
1120 | * Scsi_Host template entry, queue a SCSI command to the BFAD. |
1121 | */ | |
1122 | static int | |
1123 | bfad_im_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *)) | |
1124 | { | |
1125 | struct bfad_im_port_s *im_port = | |
1126 | (struct bfad_im_port_s *) cmnd->device->host->hostdata[0]; | |
1127 | struct bfad_s *bfad = im_port->bfad; | |
1128 | struct bfad_itnim_data_s *itnim_data = cmnd->device->hostdata; | |
1129 | struct bfad_itnim_s *itnim; | |
1130 | struct bfa_ioim_s *hal_io; | |
1131 | unsigned long flags; | |
1132 | int rc; | |
a36c61f9 | 1133 | int sg_cnt = 0; |
7725ccfd JH |
1134 | struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); |
1135 | ||
1136 | rc = fc_remote_port_chkready(rport); | |
1137 | if (rc) { | |
1138 | cmnd->result = rc; | |
1139 | done(cmnd); | |
1140 | return 0; | |
1141 | } | |
1142 | ||
1143 | sg_cnt = scsi_dma_map(cmnd); | |
7725ccfd JH |
1144 | if (sg_cnt < 0) |
1145 | return SCSI_MLQUEUE_HOST_BUSY; | |
1146 | ||
1147 | cmnd->scsi_done = done; | |
1148 | ||
1149 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1150 | if (!(bfad->bfad_flags & BFAD_HAL_START_DONE)) { | |
1151 | printk(KERN_WARNING | |
1152 | "bfad%d, queuecommand %p %x failed, BFA stopped\n", | |
1153 | bfad->inst_no, cmnd, cmnd->cmnd[0]); | |
1154 | cmnd->result = ScsiResult(DID_NO_CONNECT, 0); | |
1155 | goto out_fail_cmd; | |
1156 | } | |
1157 | ||
a36c61f9 | 1158 | |
7725ccfd JH |
1159 | itnim = itnim_data->itnim; |
1160 | if (!itnim) { | |
1161 | cmnd->result = ScsiResult(DID_IMM_RETRY, 0); | |
1162 | goto out_fail_cmd; | |
1163 | } | |
1164 | ||
1165 | hal_io = bfa_ioim_alloc(&bfad->bfa, (struct bfad_ioim_s *) cmnd, | |
1166 | itnim->bfa_itnim, sg_cnt); | |
1167 | if (!hal_io) { | |
1168 | printk(KERN_WARNING "hal_io failure\n"); | |
1169 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1170 | scsi_dma_unmap(cmnd); | |
1171 | return SCSI_MLQUEUE_HOST_BUSY; | |
1172 | } | |
1173 | ||
1174 | cmnd->host_scribble = (char *)hal_io; | |
1175 | bfa_trc_fp(bfad, hal_io->iotag); | |
1176 | bfa_ioim_start(hal_io); | |
1177 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1178 | ||
1179 | return 0; | |
1180 | ||
1181 | out_fail_cmd: | |
1182 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1183 | scsi_dma_unmap(cmnd); | |
1184 | if (done) | |
1185 | done(cmnd); | |
1186 | ||
1187 | return 0; | |
1188 | } | |
1189 | ||
1190 | void | |
1191 | bfad_os_rport_online_wait(struct bfad_s *bfad) | |
1192 | { | |
1193 | int i; | |
1194 | int rport_delay = 10; | |
1195 | ||
1196 | for (i = 0; !(bfad->bfad_flags & BFAD_PORT_ONLINE) | |
a36c61f9 KG |
1197 | && i < bfa_linkup_delay; i++) { |
1198 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1199 | schedule_timeout(HZ); | |
1200 | } | |
7725ccfd JH |
1201 | |
1202 | if (bfad->bfad_flags & BFAD_PORT_ONLINE) { | |
1203 | rport_delay = rport_delay < bfa_linkup_delay ? | |
a36c61f9 | 1204 | rport_delay : bfa_linkup_delay; |
7725ccfd | 1205 | for (i = 0; !(bfad->bfad_flags & BFAD_RPORT_ONLINE) |
a36c61f9 KG |
1206 | && i < rport_delay; i++) { |
1207 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1208 | schedule_timeout(HZ); | |
1209 | } | |
7725ccfd | 1210 | |
a36c61f9 KG |
1211 | if (rport_delay > 0 && (bfad->bfad_flags & BFAD_RPORT_ONLINE)) { |
1212 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1213 | schedule_timeout(rport_delay * HZ); | |
1214 | } | |
7725ccfd JH |
1215 | } |
1216 | } | |
1217 | ||
1218 | int | |
1219 | bfad_os_get_linkup_delay(struct bfad_s *bfad) | |
1220 | { | |
a36c61f9 KG |
1221 | u8 nwwns = 0; |
1222 | wwn_t wwns[BFA_PREBOOT_BOOTLUN_MAX]; | |
1223 | int linkup_delay; | |
7725ccfd JH |
1224 | |
1225 | /* | |
1226 | * Querying for the boot target port wwns | |
1227 | * -- read from boot information in flash. | |
a36c61f9 KG |
1228 | * If nwwns > 0 => boot over SAN and set linkup_delay = 30 |
1229 | * else => local boot machine set linkup_delay = 0 | |
7725ccfd JH |
1230 | */ |
1231 | ||
15b64a83 | 1232 | bfa_iocfc_get_bootwwns(&bfad->bfa, &nwwns, wwns); |
7725ccfd | 1233 | |
a36c61f9 KG |
1234 | if (nwwns > 0) |
1235 | /* If Boot over SAN set linkup_delay = 30sec */ | |
1236 | linkup_delay = 30; | |
1237 | else | |
1238 | /* If local boot; no linkup_delay */ | |
1239 | linkup_delay = 0; | |
7725ccfd | 1240 | |
a36c61f9 | 1241 | return linkup_delay; |
7725ccfd | 1242 | } |