Commit | Line | Data |
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7725ccfd | 1 | /* |
a36c61f9 | 2 | * Copyright (c) 2005-2010 Brocade Communications Systems, Inc. |
7725ccfd JH |
3 | * All rights reserved |
4 | * www.brocade.com | |
5 | * | |
6 | * Linux driver for Brocade Fibre Channel Host Bus Adapter. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License (GPL) Version 2 as | |
10 | * published by the Free Software Foundation | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | */ | |
17 | ||
5fbe25c7 | 18 | /* |
7725ccfd JH |
19 | * bfad_im.c Linux driver IM module. |
20 | */ | |
21 | ||
09703660 PG |
22 | #include <linux/export.h> |
23 | ||
7725ccfd JH |
24 | #include "bfad_drv.h" |
25 | #include "bfad_im.h" | |
a36c61f9 | 26 | #include "bfa_fcs.h" |
7725ccfd JH |
27 | |
28 | BFA_TRC_FILE(LDRV, IM); | |
29 | ||
30 | DEFINE_IDR(bfad_im_port_index); | |
31 | struct scsi_transport_template *bfad_im_scsi_transport_template; | |
b504293f | 32 | struct scsi_transport_template *bfad_im_scsi_vport_transport_template; |
7725ccfd | 33 | static void bfad_im_itnim_work_handler(struct work_struct *work); |
f281233d | 34 | static int bfad_im_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmnd); |
7725ccfd | 35 | static int bfad_im_slave_alloc(struct scsi_device *sdev); |
a36c61f9 KG |
36 | static void bfad_im_fc_rport_add(struct bfad_im_port_s *im_port, |
37 | struct bfad_itnim_s *itnim); | |
7725ccfd JH |
38 | |
39 | void | |
40 | bfa_cb_ioim_done(void *drv, struct bfad_ioim_s *dio, | |
41 | enum bfi_ioim_status io_status, u8 scsi_status, | |
42 | int sns_len, u8 *sns_info, s32 residue) | |
43 | { | |
44 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio; | |
45 | struct bfad_s *bfad = drv; | |
46 | struct bfad_itnim_data_s *itnim_data; | |
47 | struct bfad_itnim_s *itnim; | |
95aa060d | 48 | u8 host_status = DID_OK; |
7725ccfd JH |
49 | |
50 | switch (io_status) { | |
51 | case BFI_IOIM_STS_OK: | |
52 | bfa_trc(bfad, scsi_status); | |
7725ccfd JH |
53 | scsi_set_resid(cmnd, 0); |
54 | ||
55 | if (sns_len > 0) { | |
56 | bfa_trc(bfad, sns_len); | |
57 | if (sns_len > SCSI_SENSE_BUFFERSIZE) | |
58 | sns_len = SCSI_SENSE_BUFFERSIZE; | |
59 | memcpy(cmnd->sense_buffer, sns_info, sns_len); | |
60 | } | |
a36c61f9 | 61 | |
95aa060d KG |
62 | if (residue > 0) { |
63 | bfa_trc(bfad, residue); | |
7725ccfd | 64 | scsi_set_resid(cmnd, residue); |
95aa060d KG |
65 | if (!sns_len && (scsi_status == SAM_STAT_GOOD) && |
66 | (scsi_bufflen(cmnd) - residue) < | |
67 | cmnd->underflow) { | |
68 | bfa_trc(bfad, 0); | |
69 | host_status = DID_ERROR; | |
70 | } | |
71 | } | |
72 | cmnd->result = ScsiResult(host_status, scsi_status); | |
73 | ||
7725ccfd JH |
74 | break; |
75 | ||
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 */ | |
f16a1750 | 97 | bfad_ramp_up_qdepth(itnim, cmnd->device); |
7725ccfd JH |
98 | } else if (cmnd->result == SAM_STAT_TASK_SET_FULL && itnim) { |
99 | /* qfull handling */ | |
f16a1750 | 100 | bfad_handle_qfull(itnim, cmnd->device); |
7725ccfd JH |
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) | |
f16a1750 | 128 | bfad_ramp_up_qdepth(itnim, cmnd->device); |
7725ccfd JH |
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 | 179 | struct bfad_s *bfad = im_port->bfad; |
7725ccfd JH |
180 | |
181 | memset(bfa_buf, 0, sizeof(bfa_buf)); | |
75332a70 KG |
182 | snprintf(bfa_buf, sizeof(bfa_buf), |
183 | "Brocade FC/FCOE Adapter, " "hwpath: %s driver: %s", | |
184 | bfad->pci_name, BFAD_DRIVER_VERSION); | |
a36c61f9 | 185 | |
7725ccfd JH |
186 | return bfa_buf; |
187 | } | |
188 | ||
5fbe25c7 | 189 | /* |
7725ccfd JH |
190 | * Scsi_Host template entry, aborts the specified SCSI command. |
191 | * | |
192 | * Returns: SUCCESS or FAILED. | |
193 | */ | |
194 | static int | |
195 | bfad_im_abort_handler(struct scsi_cmnd *cmnd) | |
196 | { | |
197 | struct Scsi_Host *shost = cmnd->device->host; | |
198 | struct bfad_im_port_s *im_port = | |
199 | (struct bfad_im_port_s *) shost->hostdata[0]; | |
200 | struct bfad_s *bfad = im_port->bfad; | |
201 | struct bfa_ioim_s *hal_io; | |
202 | unsigned long flags; | |
203 | u32 timeout; | |
204 | int rc = FAILED; | |
205 | ||
206 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
207 | hal_io = (struct bfa_ioim_s *) cmnd->host_scribble; | |
208 | if (!hal_io) { | |
209 | /* IO has been completed, retrun success */ | |
210 | rc = SUCCESS; | |
211 | goto out; | |
212 | } | |
213 | if (hal_io->dio != (struct bfad_ioim_s *) cmnd) { | |
214 | rc = FAILED; | |
215 | goto out; | |
216 | } | |
217 | ||
218 | bfa_trc(bfad, hal_io->iotag); | |
88166242 JH |
219 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
220 | "scsi%d: abort cmnd %p iotag %x\n", | |
7725ccfd | 221 | im_port->shost->host_no, cmnd, hal_io->iotag); |
a36c61f9 | 222 | (void) bfa_ioim_abort(hal_io); |
7725ccfd JH |
223 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); |
224 | ||
225 | /* Need to wait until the command get aborted */ | |
226 | timeout = 10; | |
227 | while ((struct bfa_ioim_s *) cmnd->host_scribble == hal_io) { | |
228 | set_current_state(TASK_UNINTERRUPTIBLE); | |
229 | schedule_timeout(timeout); | |
230 | if (timeout < 4 * HZ) | |
231 | timeout *= 2; | |
232 | } | |
233 | ||
234 | cmnd->scsi_done(cmnd); | |
235 | bfa_trc(bfad, hal_io->iotag); | |
88166242 | 236 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
a36c61f9 | 237 | "scsi%d: complete abort 0x%p iotag 0x%x\n", |
7725ccfd JH |
238 | im_port->shost->host_no, cmnd, hal_io->iotag); |
239 | return SUCCESS; | |
240 | out: | |
241 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
242 | return rc; | |
243 | } | |
244 | ||
245 | static bfa_status_t | |
246 | bfad_im_target_reset_send(struct bfad_s *bfad, struct scsi_cmnd *cmnd, | |
247 | struct bfad_itnim_s *itnim) | |
248 | { | |
249 | struct bfa_tskim_s *tskim; | |
250 | struct bfa_itnim_s *bfa_itnim; | |
251 | bfa_status_t rc = BFA_STATUS_OK; | |
f314878a | 252 | struct scsi_lun scsilun; |
7725ccfd | 253 | |
7725ccfd JH |
254 | tskim = bfa_tskim_alloc(&bfad->bfa, (struct bfad_tskim_s *) cmnd); |
255 | if (!tskim) { | |
88166242 | 256 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, |
a36c61f9 | 257 | "target reset, fail to allocate tskim\n"); |
7725ccfd JH |
258 | rc = BFA_STATUS_FAILED; |
259 | goto out; | |
260 | } | |
261 | ||
262 | /* | |
263 | * Set host_scribble to NULL to avoid aborting a task command if | |
264 | * happens. | |
265 | */ | |
266 | cmnd->host_scribble = NULL; | |
267 | cmnd->SCp.Status = 0; | |
268 | bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim->fcs_itnim); | |
f314878a MZ |
269 | memset(&scsilun, 0, sizeof(scsilun)); |
270 | bfa_tskim_start(tskim, bfa_itnim, scsilun, | |
7725ccfd JH |
271 | FCP_TM_TARGET_RESET, BFAD_TARGET_RESET_TMO); |
272 | out: | |
273 | return rc; | |
274 | } | |
275 | ||
5fbe25c7 | 276 | /* |
7725ccfd JH |
277 | * Scsi_Host template entry, resets a LUN and abort its all commands. |
278 | * | |
279 | * Returns: SUCCESS or FAILED. | |
280 | * | |
281 | */ | |
282 | static int | |
283 | bfad_im_reset_lun_handler(struct scsi_cmnd *cmnd) | |
284 | { | |
285 | struct Scsi_Host *shost = cmnd->device->host; | |
286 | struct bfad_im_port_s *im_port = | |
287 | (struct bfad_im_port_s *) shost->hostdata[0]; | |
288 | struct bfad_itnim_data_s *itnim_data = cmnd->device->hostdata; | |
289 | struct bfad_s *bfad = im_port->bfad; | |
290 | struct bfa_tskim_s *tskim; | |
291 | struct bfad_itnim_s *itnim; | |
292 | struct bfa_itnim_s *bfa_itnim; | |
6d154db6 | 293 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq); |
7725ccfd JH |
294 | int rc = SUCCESS; |
295 | unsigned long flags; | |
296 | enum bfi_tskim_status task_status; | |
f314878a | 297 | struct scsi_lun scsilun; |
7725ccfd JH |
298 | |
299 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
300 | itnim = itnim_data->itnim; | |
301 | if (!itnim) { | |
302 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
303 | rc = FAILED; | |
304 | goto out; | |
305 | } | |
306 | ||
307 | tskim = bfa_tskim_alloc(&bfad->bfa, (struct bfad_tskim_s *) cmnd); | |
308 | if (!tskim) { | |
88166242 | 309 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, |
7725ccfd JH |
310 | "LUN reset, fail to allocate tskim"); |
311 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
312 | rc = FAILED; | |
313 | goto out; | |
314 | } | |
315 | ||
5fbe25c7 | 316 | /* |
7725ccfd JH |
317 | * Set host_scribble to NULL to avoid aborting a task command |
318 | * if happens. | |
319 | */ | |
320 | cmnd->host_scribble = NULL; | |
321 | cmnd->SCp.ptr = (char *)&wq; | |
322 | cmnd->SCp.Status = 0; | |
323 | bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim->fcs_itnim); | |
f314878a MZ |
324 | int_to_scsilun(cmnd->device->lun, &scsilun); |
325 | bfa_tskim_start(tskim, bfa_itnim, scsilun, | |
7725ccfd JH |
326 | FCP_TM_LUN_RESET, BFAD_LUN_RESET_TMO); |
327 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
328 | ||
329 | wait_event(wq, test_bit(IO_DONE_BIT, | |
330 | (unsigned long *)&cmnd->SCp.Status)); | |
331 | ||
332 | task_status = cmnd->SCp.Status >> 1; | |
333 | if (task_status != BFI_TSKIM_STS_OK) { | |
88166242 | 334 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, |
a36c61f9 | 335 | "LUN reset failure, status: %d\n", task_status); |
7725ccfd JH |
336 | rc = FAILED; |
337 | } | |
338 | ||
339 | out: | |
340 | return rc; | |
341 | } | |
342 | ||
5fbe25c7 | 343 | /* |
7725ccfd JH |
344 | * Scsi_Host template entry, resets the bus and abort all commands. |
345 | */ | |
346 | static int | |
347 | bfad_im_reset_bus_handler(struct scsi_cmnd *cmnd) | |
348 | { | |
349 | struct Scsi_Host *shost = cmnd->device->host; | |
350 | struct bfad_im_port_s *im_port = | |
351 | (struct bfad_im_port_s *) shost->hostdata[0]; | |
352 | struct bfad_s *bfad = im_port->bfad; | |
353 | struct bfad_itnim_s *itnim; | |
354 | unsigned long flags; | |
355 | u32 i, rc, err_cnt = 0; | |
6d154db6 | 356 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq); |
7725ccfd JH |
357 | enum bfi_tskim_status task_status; |
358 | ||
359 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
360 | for (i = 0; i < MAX_FCP_TARGET; i++) { | |
f16a1750 | 361 | itnim = bfad_get_itnim(im_port, i); |
7725ccfd JH |
362 | if (itnim) { |
363 | cmnd->SCp.ptr = (char *)&wq; | |
364 | rc = bfad_im_target_reset_send(bfad, cmnd, itnim); | |
365 | if (rc != BFA_STATUS_OK) { | |
366 | err_cnt++; | |
367 | continue; | |
368 | } | |
369 | ||
370 | /* wait target reset to complete */ | |
371 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
372 | wait_event(wq, test_bit(IO_DONE_BIT, | |
373 | (unsigned long *)&cmnd->SCp.Status)); | |
374 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
375 | ||
376 | task_status = cmnd->SCp.Status >> 1; | |
377 | if (task_status != BFI_TSKIM_STS_OK) { | |
88166242 | 378 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, |
7725ccfd JH |
379 | "target reset failure," |
380 | " status: %d\n", task_status); | |
381 | err_cnt++; | |
382 | } | |
383 | } | |
384 | } | |
385 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
386 | ||
387 | if (err_cnt) | |
388 | return FAILED; | |
389 | ||
390 | return SUCCESS; | |
391 | } | |
392 | ||
5fbe25c7 | 393 | /* |
7725ccfd JH |
394 | * Scsi_Host template entry slave_destroy. |
395 | */ | |
396 | static void | |
397 | bfad_im_slave_destroy(struct scsi_device *sdev) | |
398 | { | |
399 | sdev->hostdata = NULL; | |
400 | return; | |
401 | } | |
402 | ||
5fbe25c7 | 403 | /* |
7725ccfd JH |
404 | * BFA FCS itnim callbacks |
405 | */ | |
406 | ||
5fbe25c7 | 407 | /* |
7725ccfd JH |
408 | * BFA FCS itnim alloc callback, after successful PRLI |
409 | * Context: Interrupt | |
410 | */ | |
411 | void | |
412 | bfa_fcb_itnim_alloc(struct bfad_s *bfad, struct bfa_fcs_itnim_s **itnim, | |
413 | struct bfad_itnim_s **itnim_drv) | |
414 | { | |
415 | *itnim_drv = kzalloc(sizeof(struct bfad_itnim_s), GFP_ATOMIC); | |
416 | if (*itnim_drv == NULL) | |
417 | return; | |
418 | ||
419 | (*itnim_drv)->im = bfad->im; | |
420 | *itnim = &(*itnim_drv)->fcs_itnim; | |
421 | (*itnim_drv)->state = ITNIM_STATE_NONE; | |
422 | ||
423 | /* | |
424 | * Initiaze the itnim_work | |
425 | */ | |
426 | INIT_WORK(&(*itnim_drv)->itnim_work, bfad_im_itnim_work_handler); | |
427 | bfad->bfad_flags |= BFAD_RPORT_ONLINE; | |
428 | } | |
429 | ||
5fbe25c7 | 430 | /* |
7725ccfd JH |
431 | * BFA FCS itnim free callback. |
432 | * Context: Interrupt. bfad_lock is held | |
433 | */ | |
434 | void | |
435 | bfa_fcb_itnim_free(struct bfad_s *bfad, struct bfad_itnim_s *itnim_drv) | |
436 | { | |
437 | struct bfad_port_s *port; | |
438 | wwn_t wwpn; | |
439 | u32 fcid; | |
440 | char wwpn_str[32], fcid_str[16]; | |
a36c61f9 | 441 | struct bfad_im_s *im = itnim_drv->im; |
7725ccfd JH |
442 | |
443 | /* online to free state transtion should not happen */ | |
d4b671c5 | 444 | WARN_ON(itnim_drv->state == ITNIM_STATE_ONLINE); |
7725ccfd JH |
445 | |
446 | itnim_drv->queue_work = 1; | |
447 | /* offline request is not yet done, use the same request to free */ | |
448 | if (itnim_drv->state == ITNIM_STATE_OFFLINE_PENDING) | |
449 | itnim_drv->queue_work = 0; | |
450 | ||
451 | itnim_drv->state = ITNIM_STATE_FREE; | |
452 | port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim); | |
453 | itnim_drv->im_port = port->im_port; | |
454 | wwpn = bfa_fcs_itnim_get_pwwn(&itnim_drv->fcs_itnim); | |
455 | fcid = bfa_fcs_itnim_get_fcid(&itnim_drv->fcs_itnim); | |
456 | wwn2str(wwpn_str, wwpn); | |
457 | fcid2str(fcid_str, fcid); | |
88166242 | 458 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
a36c61f9 | 459 | "ITNIM FREE scsi%d: FCID: %s WWPN: %s\n", |
7725ccfd JH |
460 | port->im_port->shost->host_no, |
461 | fcid_str, wwpn_str); | |
a36c61f9 KG |
462 | |
463 | /* ITNIM processing */ | |
464 | if (itnim_drv->queue_work) | |
465 | queue_work(im->drv_workq, &itnim_drv->itnim_work); | |
7725ccfd JH |
466 | } |
467 | ||
5fbe25c7 | 468 | /* |
7725ccfd JH |
469 | * BFA FCS itnim online callback. |
470 | * Context: Interrupt. bfad_lock is held | |
471 | */ | |
472 | void | |
473 | bfa_fcb_itnim_online(struct bfad_itnim_s *itnim_drv) | |
474 | { | |
475 | struct bfad_port_s *port; | |
a36c61f9 | 476 | struct bfad_im_s *im = itnim_drv->im; |
7725ccfd JH |
477 | |
478 | itnim_drv->bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim_drv->fcs_itnim); | |
479 | port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim); | |
480 | itnim_drv->state = ITNIM_STATE_ONLINE; | |
481 | itnim_drv->queue_work = 1; | |
482 | itnim_drv->im_port = port->im_port; | |
a36c61f9 KG |
483 | |
484 | /* ITNIM processing */ | |
485 | if (itnim_drv->queue_work) | |
486 | queue_work(im->drv_workq, &itnim_drv->itnim_work); | |
7725ccfd JH |
487 | } |
488 | ||
5fbe25c7 | 489 | /* |
7725ccfd JH |
490 | * BFA FCS itnim offline callback. |
491 | * Context: Interrupt. bfad_lock is held | |
492 | */ | |
493 | void | |
494 | bfa_fcb_itnim_offline(struct bfad_itnim_s *itnim_drv) | |
495 | { | |
496 | struct bfad_port_s *port; | |
497 | struct bfad_s *bfad; | |
a36c61f9 | 498 | struct bfad_im_s *im = itnim_drv->im; |
7725ccfd JH |
499 | |
500 | port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim); | |
501 | bfad = port->bfad; | |
502 | if ((bfad->pport.flags & BFAD_PORT_DELETE) || | |
503 | (port->flags & BFAD_PORT_DELETE)) { | |
504 | itnim_drv->state = ITNIM_STATE_OFFLINE; | |
505 | return; | |
506 | } | |
507 | itnim_drv->im_port = port->im_port; | |
508 | itnim_drv->state = ITNIM_STATE_OFFLINE_PENDING; | |
509 | itnim_drv->queue_work = 1; | |
7725ccfd | 510 | |
a36c61f9 KG |
511 | /* ITNIM processing */ |
512 | if (itnim_drv->queue_work) | |
513 | queue_work(im->drv_workq, &itnim_drv->itnim_work); | |
7725ccfd JH |
514 | } |
515 | ||
5fbe25c7 | 516 | /* |
7725ccfd JH |
517 | * Allocate a Scsi_Host for a port. |
518 | */ | |
519 | int | |
b504293f | 520 | bfad_im_scsi_host_alloc(struct bfad_s *bfad, struct bfad_im_port_s *im_port, |
a36c61f9 | 521 | struct device *dev) |
7725ccfd JH |
522 | { |
523 | int error = 1; | |
524 | ||
42b426ec | 525 | mutex_lock(&bfad_mutex); |
70a9755d TH |
526 | error = idr_alloc(&bfad_im_port_index, im_port, 0, 0, GFP_KERNEL); |
527 | if (error < 0) { | |
42b426ec | 528 | mutex_unlock(&bfad_mutex); |
70a9755d | 529 | printk(KERN_WARNING "idr_alloc failure\n"); |
7725ccfd JH |
530 | goto out; |
531 | } | |
70a9755d | 532 | im_port->idr_id = error; |
42b426ec JH |
533 | mutex_unlock(&bfad_mutex); |
534 | ||
f16a1750 | 535 | im_port->shost = bfad_scsi_host_alloc(im_port, bfad); |
7725ccfd JH |
536 | if (!im_port->shost) { |
537 | error = 1; | |
538 | goto out_free_idr; | |
539 | } | |
540 | ||
541 | im_port->shost->hostdata[0] = (unsigned long)im_port; | |
542 | im_port->shost->unique_id = im_port->idr_id; | |
543 | im_port->shost->this_id = -1; | |
544 | im_port->shost->max_id = MAX_FCP_TARGET; | |
545 | im_port->shost->max_lun = MAX_FCP_LUN; | |
546 | im_port->shost->max_cmd_len = 16; | |
547 | im_port->shost->can_queue = bfad->cfg_data.ioc_queue_depth; | |
b504293f JH |
548 | if (im_port->port->pvb_type == BFAD_PORT_PHYS_BASE) |
549 | im_port->shost->transportt = bfad_im_scsi_transport_template; | |
550 | else | |
551 | im_port->shost->transportt = | |
552 | bfad_im_scsi_vport_transport_template; | |
7725ccfd | 553 | |
c54d557c | 554 | error = scsi_add_host_with_dma(im_port->shost, dev, &bfad->pcidev->dev); |
7725ccfd | 555 | if (error) { |
b504293f | 556 | printk(KERN_WARNING "scsi_add_host failure %d\n", error); |
7725ccfd JH |
557 | goto out_fc_rel; |
558 | } | |
559 | ||
7725ccfd JH |
560 | return 0; |
561 | ||
562 | out_fc_rel: | |
563 | scsi_host_put(im_port->shost); | |
d9883548 | 564 | im_port->shost = NULL; |
7725ccfd | 565 | out_free_idr: |
42b426ec | 566 | mutex_lock(&bfad_mutex); |
7725ccfd | 567 | idr_remove(&bfad_im_port_index, im_port->idr_id); |
42b426ec | 568 | mutex_unlock(&bfad_mutex); |
7725ccfd JH |
569 | out: |
570 | return error; | |
571 | } | |
572 | ||
573 | void | |
574 | bfad_im_scsi_host_free(struct bfad_s *bfad, struct bfad_im_port_s *im_port) | |
575 | { | |
7725ccfd | 576 | bfa_trc(bfad, bfad->inst_no); |
88166242 | 577 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, "Free scsi%d\n", |
7725ccfd JH |
578 | im_port->shost->host_no); |
579 | ||
580 | fc_remove_host(im_port->shost); | |
581 | ||
582 | scsi_remove_host(im_port->shost); | |
583 | scsi_host_put(im_port->shost); | |
584 | ||
42b426ec | 585 | mutex_lock(&bfad_mutex); |
7725ccfd | 586 | idr_remove(&bfad_im_port_index, im_port->idr_id); |
42b426ec | 587 | mutex_unlock(&bfad_mutex); |
7725ccfd JH |
588 | } |
589 | ||
590 | static void | |
591 | bfad_im_port_delete_handler(struct work_struct *work) | |
592 | { | |
593 | struct bfad_im_port_s *im_port = | |
594 | container_of(work, struct bfad_im_port_s, port_delete_work); | |
595 | ||
b504293f JH |
596 | if (im_port->port->pvb_type != BFAD_PORT_PHYS_BASE) { |
597 | im_port->flags |= BFAD_PORT_DELETE; | |
598 | fc_vport_terminate(im_port->fc_vport); | |
599 | } | |
7725ccfd JH |
600 | } |
601 | ||
602 | bfa_status_t | |
603 | bfad_im_port_new(struct bfad_s *bfad, struct bfad_port_s *port) | |
604 | { | |
605 | int rc = BFA_STATUS_OK; | |
606 | struct bfad_im_port_s *im_port; | |
607 | ||
608 | im_port = kzalloc(sizeof(struct bfad_im_port_s), GFP_ATOMIC); | |
609 | if (im_port == NULL) { | |
610 | rc = BFA_STATUS_ENOMEM; | |
611 | goto ext; | |
612 | } | |
613 | port->im_port = im_port; | |
614 | im_port->port = port; | |
615 | im_port->bfad = bfad; | |
616 | ||
617 | INIT_WORK(&im_port->port_delete_work, bfad_im_port_delete_handler); | |
618 | INIT_LIST_HEAD(&im_port->itnim_mapped_list); | |
619 | INIT_LIST_HEAD(&im_port->binding_list); | |
620 | ||
621 | ext: | |
622 | return rc; | |
623 | } | |
624 | ||
625 | void | |
626 | bfad_im_port_delete(struct bfad_s *bfad, struct bfad_port_s *port) | |
627 | { | |
628 | struct bfad_im_port_s *im_port = port->im_port; | |
629 | ||
a36c61f9 | 630 | queue_work(bfad->im->drv_workq, |
7725ccfd JH |
631 | &im_port->port_delete_work); |
632 | } | |
633 | ||
634 | void | |
635 | bfad_im_port_clean(struct bfad_im_port_s *im_port) | |
636 | { | |
637 | struct bfad_fcp_binding *bp, *bp_new; | |
638 | unsigned long flags; | |
639 | struct bfad_s *bfad = im_port->bfad; | |
640 | ||
641 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
642 | list_for_each_entry_safe(bp, bp_new, &im_port->binding_list, | |
643 | list_entry) { | |
644 | list_del(&bp->list_entry); | |
645 | kfree(bp); | |
646 | } | |
647 | ||
648 | /* the itnim_mapped_list must be empty at this time */ | |
d4b671c5 | 649 | WARN_ON(!list_empty(&im_port->itnim_mapped_list)); |
7725ccfd JH |
650 | |
651 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
652 | } | |
653 | ||
7826f304 KG |
654 | static void bfad_aen_im_notify_handler(struct work_struct *work) |
655 | { | |
656 | struct bfad_im_s *im = | |
657 | container_of(work, struct bfad_im_s, aen_im_notify_work); | |
658 | struct bfa_aen_entry_s *aen_entry; | |
659 | struct bfad_s *bfad = im->bfad; | |
660 | struct Scsi_Host *shost = bfad->pport.im_port->shost; | |
661 | void *event_data; | |
662 | unsigned long flags; | |
663 | ||
664 | while (!list_empty(&bfad->active_aen_q)) { | |
665 | spin_lock_irqsave(&bfad->bfad_aen_spinlock, flags); | |
666 | bfa_q_deq(&bfad->active_aen_q, &aen_entry); | |
667 | spin_unlock_irqrestore(&bfad->bfad_aen_spinlock, flags); | |
668 | event_data = (char *)aen_entry + sizeof(struct list_head); | |
669 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
670 | sizeof(struct bfa_aen_entry_s) - | |
671 | sizeof(struct list_head), | |
672 | (char *)event_data, BFAD_NL_VENDOR_ID); | |
673 | spin_lock_irqsave(&bfad->bfad_aen_spinlock, flags); | |
674 | list_add_tail(&aen_entry->qe, &bfad->free_aen_q); | |
675 | spin_unlock_irqrestore(&bfad->bfad_aen_spinlock, flags); | |
676 | } | |
677 | } | |
678 | ||
7725ccfd JH |
679 | bfa_status_t |
680 | bfad_im_probe(struct bfad_s *bfad) | |
681 | { | |
682 | struct bfad_im_s *im; | |
7725ccfd JH |
683 | |
684 | im = kzalloc(sizeof(struct bfad_im_s), GFP_KERNEL); | |
a5254dbb DC |
685 | if (im == NULL) |
686 | return BFA_STATUS_ENOMEM; | |
7725ccfd JH |
687 | |
688 | bfad->im = im; | |
689 | im->bfad = bfad; | |
690 | ||
f16a1750 | 691 | if (bfad_thread_workq(bfad) != BFA_STATUS_OK) { |
7725ccfd | 692 | kfree(im); |
a5254dbb | 693 | return BFA_STATUS_FAILED; |
7725ccfd JH |
694 | } |
695 | ||
7826f304 | 696 | INIT_WORK(&im->aen_im_notify_work, bfad_aen_im_notify_handler); |
a5254dbb | 697 | return BFA_STATUS_OK; |
7725ccfd JH |
698 | } |
699 | ||
700 | void | |
701 | bfad_im_probe_undo(struct bfad_s *bfad) | |
702 | { | |
703 | if (bfad->im) { | |
f16a1750 | 704 | bfad_destroy_workq(bfad->im); |
7725ccfd JH |
705 | kfree(bfad->im); |
706 | bfad->im = NULL; | |
707 | } | |
708 | } | |
709 | ||
7725ccfd | 710 | struct Scsi_Host * |
f16a1750 | 711 | bfad_scsi_host_alloc(struct bfad_im_port_s *im_port, struct bfad_s *bfad) |
7725ccfd JH |
712 | { |
713 | struct scsi_host_template *sht; | |
714 | ||
715 | if (im_port->port->pvb_type == BFAD_PORT_PHYS_BASE) | |
716 | sht = &bfad_im_scsi_host_template; | |
717 | else | |
718 | sht = &bfad_im_vport_template; | |
719 | ||
61e62e21 KG |
720 | if (max_xfer_size != BFAD_MAX_SECTORS >> 1) |
721 | sht->max_sectors = max_xfer_size << 1; | |
722 | ||
7725ccfd JH |
723 | sht->sg_tablesize = bfad->cfg_data.io_max_sge; |
724 | ||
725 | return scsi_host_alloc(sht, sizeof(unsigned long)); | |
726 | } | |
727 | ||
728 | void | |
f16a1750 | 729 | bfad_scsi_host_free(struct bfad_s *bfad, struct bfad_im_port_s *im_port) |
7725ccfd | 730 | { |
b504293f JH |
731 | if (!(im_port->flags & BFAD_PORT_DELETE)) |
732 | flush_workqueue(bfad->im->drv_workq); | |
7725ccfd JH |
733 | bfad_im_scsi_host_free(im_port->bfad, im_port); |
734 | bfad_im_port_clean(im_port); | |
735 | kfree(im_port); | |
736 | } | |
737 | ||
738 | void | |
f16a1750 | 739 | bfad_destroy_workq(struct bfad_im_s *im) |
7725ccfd JH |
740 | { |
741 | if (im && im->drv_workq) { | |
a36c61f9 | 742 | flush_workqueue(im->drv_workq); |
7725ccfd JH |
743 | destroy_workqueue(im->drv_workq); |
744 | im->drv_workq = NULL; | |
745 | } | |
746 | } | |
747 | ||
748 | bfa_status_t | |
f16a1750 | 749 | bfad_thread_workq(struct bfad_s *bfad) |
7725ccfd JH |
750 | { |
751 | struct bfad_im_s *im = bfad->im; | |
752 | ||
753 | bfa_trc(bfad, 0); | |
a36c61f9 | 754 | snprintf(im->drv_workq_name, KOBJ_NAME_LEN, "bfad_wq_%d", |
7725ccfd JH |
755 | bfad->inst_no); |
756 | im->drv_workq = create_singlethread_workqueue(im->drv_workq_name); | |
757 | if (!im->drv_workq) | |
758 | return BFA_STATUS_FAILED; | |
759 | ||
760 | return BFA_STATUS_OK; | |
761 | } | |
762 | ||
5fbe25c7 | 763 | /* |
7725ccfd JH |
764 | * Scsi_Host template entry. |
765 | * | |
766 | * Description: | |
767 | * OS entry point to adjust the queue_depths on a per-device basis. | |
768 | * Called once per device during the bus scan. | |
769 | * Return non-zero if fails. | |
770 | */ | |
771 | static int | |
772 | bfad_im_slave_configure(struct scsi_device *sdev) | |
773 | { | |
774 | if (sdev->tagged_supported) | |
775 | scsi_activate_tcq(sdev, bfa_lun_queue_depth); | |
776 | else | |
777 | scsi_deactivate_tcq(sdev, bfa_lun_queue_depth); | |
778 | ||
779 | return 0; | |
780 | } | |
781 | ||
782 | struct scsi_host_template bfad_im_scsi_host_template = { | |
783 | .module = THIS_MODULE, | |
784 | .name = BFAD_DRIVER_NAME, | |
785 | .info = bfad_im_info, | |
786 | .queuecommand = bfad_im_queuecommand, | |
787 | .eh_abort_handler = bfad_im_abort_handler, | |
788 | .eh_device_reset_handler = bfad_im_reset_lun_handler, | |
789 | .eh_bus_reset_handler = bfad_im_reset_bus_handler, | |
790 | ||
791 | .slave_alloc = bfad_im_slave_alloc, | |
792 | .slave_configure = bfad_im_slave_configure, | |
793 | .slave_destroy = bfad_im_slave_destroy, | |
794 | ||
795 | .this_id = -1, | |
796 | .sg_tablesize = BFAD_IO_MAX_SGE, | |
797 | .cmd_per_lun = 3, | |
798 | .use_clustering = ENABLE_CLUSTERING, | |
799 | .shost_attrs = bfad_im_host_attrs, | |
61e62e21 | 800 | .max_sectors = BFAD_MAX_SECTORS, |
b85daafe | 801 | .vendor_id = BFA_PCI_VENDOR_ID_BROCADE, |
7725ccfd JH |
802 | }; |
803 | ||
804 | struct scsi_host_template bfad_im_vport_template = { | |
805 | .module = THIS_MODULE, | |
806 | .name = BFAD_DRIVER_NAME, | |
807 | .info = bfad_im_info, | |
808 | .queuecommand = bfad_im_queuecommand, | |
809 | .eh_abort_handler = bfad_im_abort_handler, | |
810 | .eh_device_reset_handler = bfad_im_reset_lun_handler, | |
811 | .eh_bus_reset_handler = bfad_im_reset_bus_handler, | |
812 | ||
813 | .slave_alloc = bfad_im_slave_alloc, | |
814 | .slave_configure = bfad_im_slave_configure, | |
815 | .slave_destroy = bfad_im_slave_destroy, | |
816 | ||
817 | .this_id = -1, | |
818 | .sg_tablesize = BFAD_IO_MAX_SGE, | |
819 | .cmd_per_lun = 3, | |
820 | .use_clustering = ENABLE_CLUSTERING, | |
821 | .shost_attrs = bfad_im_vport_attrs, | |
61e62e21 | 822 | .max_sectors = BFAD_MAX_SECTORS, |
7725ccfd JH |
823 | }; |
824 | ||
7725ccfd JH |
825 | bfa_status_t |
826 | bfad_im_module_init(void) | |
827 | { | |
828 | bfad_im_scsi_transport_template = | |
829 | fc_attach_transport(&bfad_im_fc_function_template); | |
830 | if (!bfad_im_scsi_transport_template) | |
831 | return BFA_STATUS_ENOMEM; | |
832 | ||
b504293f JH |
833 | bfad_im_scsi_vport_transport_template = |
834 | fc_attach_transport(&bfad_im_vport_fc_function_template); | |
835 | if (!bfad_im_scsi_vport_transport_template) { | |
836 | fc_release_transport(bfad_im_scsi_transport_template); | |
837 | return BFA_STATUS_ENOMEM; | |
838 | } | |
839 | ||
7725ccfd JH |
840 | return BFA_STATUS_OK; |
841 | } | |
842 | ||
843 | void | |
844 | bfad_im_module_exit(void) | |
845 | { | |
846 | if (bfad_im_scsi_transport_template) | |
847 | fc_release_transport(bfad_im_scsi_transport_template); | |
a36c61f9 | 848 | |
b504293f JH |
849 | if (bfad_im_scsi_vport_transport_template) |
850 | fc_release_transport(bfad_im_scsi_vport_transport_template); | |
7725ccfd JH |
851 | } |
852 | ||
7725ccfd | 853 | void |
f16a1750 | 854 | bfad_ramp_up_qdepth(struct bfad_itnim_s *itnim, struct scsi_device *sdev) |
7725ccfd JH |
855 | { |
856 | struct scsi_device *tmp_sdev; | |
857 | ||
858 | if (((jiffies - itnim->last_ramp_up_time) > | |
859 | BFA_QUEUE_FULL_RAMP_UP_TIME * HZ) && | |
860 | ((jiffies - itnim->last_queue_full_time) > | |
861 | BFA_QUEUE_FULL_RAMP_UP_TIME * HZ)) { | |
862 | shost_for_each_device(tmp_sdev, sdev->host) { | |
863 | if (bfa_lun_queue_depth > tmp_sdev->queue_depth) { | |
864 | if (tmp_sdev->id != sdev->id) | |
865 | continue; | |
866 | if (tmp_sdev->ordered_tags) | |
867 | scsi_adjust_queue_depth(tmp_sdev, | |
868 | MSG_ORDERED_TAG, | |
869 | tmp_sdev->queue_depth + 1); | |
870 | else | |
871 | scsi_adjust_queue_depth(tmp_sdev, | |
872 | MSG_SIMPLE_TAG, | |
873 | tmp_sdev->queue_depth + 1); | |
874 | ||
875 | itnim->last_ramp_up_time = jiffies; | |
876 | } | |
877 | } | |
878 | } | |
879 | } | |
880 | ||
881 | void | |
f16a1750 | 882 | bfad_handle_qfull(struct bfad_itnim_s *itnim, struct scsi_device *sdev) |
7725ccfd JH |
883 | { |
884 | struct scsi_device *tmp_sdev; | |
885 | ||
886 | itnim->last_queue_full_time = jiffies; | |
887 | ||
888 | shost_for_each_device(tmp_sdev, sdev->host) { | |
889 | if (tmp_sdev->id != sdev->id) | |
890 | continue; | |
891 | scsi_track_queue_full(tmp_sdev, tmp_sdev->queue_depth - 1); | |
892 | } | |
893 | } | |
894 | ||
7725ccfd | 895 | struct bfad_itnim_s * |
f16a1750 | 896 | bfad_get_itnim(struct bfad_im_port_s *im_port, int id) |
7725ccfd JH |
897 | { |
898 | struct bfad_itnim_s *itnim = NULL; | |
899 | ||
900 | /* Search the mapped list for this target ID */ | |
901 | list_for_each_entry(itnim, &im_port->itnim_mapped_list, list_entry) { | |
902 | if (id == itnim->scsi_tgt_id) | |
903 | return itnim; | |
904 | } | |
905 | ||
906 | return NULL; | |
907 | } | |
908 | ||
5b7db7af KG |
909 | /* |
910 | * Function is invoked from the SCSI Host Template slave_alloc() entry point. | |
911 | * Has the logic to query the LUN Mask database to check if this LUN needs to | |
912 | * be made visible to the SCSI mid-layer or not. | |
913 | * | |
914 | * Returns BFA_STATUS_OK if this LUN needs to be added to the OS stack. | |
915 | * Returns -ENXIO to notify SCSI mid-layer to not add this LUN to the OS stack. | |
916 | */ | |
917 | static int | |
918 | bfad_im_check_if_make_lun_visible(struct scsi_device *sdev, | |
919 | struct fc_rport *rport) | |
920 | { | |
921 | struct bfad_itnim_data_s *itnim_data = | |
922 | (struct bfad_itnim_data_s *) rport->dd_data; | |
923 | struct bfa_s *bfa = itnim_data->itnim->bfa_itnim->bfa; | |
924 | struct bfa_rport_s *bfa_rport = itnim_data->itnim->bfa_itnim->rport; | |
925 | struct bfa_lun_mask_s *lun_list = bfa_get_lun_mask_list(bfa); | |
926 | int i = 0, ret = -ENXIO; | |
927 | ||
928 | for (i = 0; i < MAX_LUN_MASK_CFG; i++) { | |
929 | if (lun_list[i].state == BFA_IOIM_LUN_MASK_ACTIVE && | |
930 | scsilun_to_int(&lun_list[i].lun) == sdev->lun && | |
931 | lun_list[i].rp_tag == bfa_rport->rport_tag && | |
932 | lun_list[i].lp_tag == (u8)bfa_rport->rport_info.lp_tag) { | |
933 | ret = BFA_STATUS_OK; | |
934 | break; | |
935 | } | |
936 | } | |
937 | return ret; | |
938 | } | |
939 | ||
5fbe25c7 | 940 | /* |
7725ccfd JH |
941 | * Scsi_Host template entry slave_alloc |
942 | */ | |
943 | static int | |
944 | bfad_im_slave_alloc(struct scsi_device *sdev) | |
945 | { | |
946 | struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); | |
c6e23d83 JN |
947 | struct bfad_itnim_data_s *itnim_data; |
948 | struct bfa_s *bfa; | |
7725ccfd JH |
949 | |
950 | if (!rport || fc_remote_port_chkready(rport)) | |
951 | return -ENXIO; | |
952 | ||
c6e23d83 JN |
953 | itnim_data = (struct bfad_itnim_data_s *) rport->dd_data; |
954 | bfa = itnim_data->itnim->bfa_itnim->bfa; | |
955 | ||
5b7db7af KG |
956 | if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_ENABLED) { |
957 | /* | |
958 | * We should not mask LUN 0 - since this will translate | |
959 | * to no LUN / TARGET for SCSI ml resulting no scan. | |
960 | */ | |
961 | if (sdev->lun == 0) { | |
962 | sdev->sdev_bflags |= BLIST_NOREPORTLUN | | |
963 | BLIST_SPARSELUN; | |
964 | goto done; | |
965 | } | |
966 | ||
967 | /* | |
968 | * Query LUN Mask configuration - to expose this LUN | |
969 | * to the SCSI mid-layer or to mask it. | |
970 | */ | |
971 | if (bfad_im_check_if_make_lun_visible(sdev, rport) != | |
972 | BFA_STATUS_OK) | |
973 | return -ENXIO; | |
974 | } | |
975 | done: | |
7725ccfd JH |
976 | sdev->hostdata = rport->dd_data; |
977 | ||
978 | return 0; | |
979 | } | |
980 | ||
6192bd7c | 981 | u32 |
a36c61f9 KG |
982 | bfad_im_supported_speeds(struct bfa_s *bfa) |
983 | { | |
e0a08a30 | 984 | struct bfa_ioc_attr_s *ioc_attr; |
a36c61f9 KG |
985 | u32 supported_speed = 0; |
986 | ||
e0a08a30 JH |
987 | ioc_attr = kzalloc(sizeof(struct bfa_ioc_attr_s), GFP_KERNEL); |
988 | if (!ioc_attr) | |
989 | return 0; | |
990 | ||
f7f73812 | 991 | bfa_ioc_get_attr(&bfa->ioc, ioc_attr); |
8b070b4a KG |
992 | if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_16GBPS) |
993 | supported_speed |= FC_PORTSPEED_16GBIT | FC_PORTSPEED_8GBIT | | |
994 | FC_PORTSPEED_4GBIT | FC_PORTSPEED_2GBIT; | |
995 | else if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_8GBPS) { | |
e0a08a30 | 996 | if (ioc_attr->adapter_attr.is_mezz) { |
a36c61f9 KG |
997 | supported_speed |= FC_PORTSPEED_8GBIT | |
998 | FC_PORTSPEED_4GBIT | | |
999 | FC_PORTSPEED_2GBIT | FC_PORTSPEED_1GBIT; | |
1000 | } else { | |
1001 | supported_speed |= FC_PORTSPEED_8GBIT | | |
1002 | FC_PORTSPEED_4GBIT | | |
1003 | FC_PORTSPEED_2GBIT; | |
1004 | } | |
e0a08a30 | 1005 | } else if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_4GBPS) { |
a36c61f9 KG |
1006 | supported_speed |= FC_PORTSPEED_4GBIT | FC_PORTSPEED_2GBIT | |
1007 | FC_PORTSPEED_1GBIT; | |
e0a08a30 | 1008 | } else if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_10GBPS) { |
a36c61f9 KG |
1009 | supported_speed |= FC_PORTSPEED_10GBIT; |
1010 | } | |
e0a08a30 | 1011 | kfree(ioc_attr); |
a36c61f9 KG |
1012 | return supported_speed; |
1013 | } | |
1014 | ||
7725ccfd | 1015 | void |
f16a1750 | 1016 | bfad_fc_host_init(struct bfad_im_port_s *im_port) |
7725ccfd JH |
1017 | { |
1018 | struct Scsi_Host *host = im_port->shost; | |
1019 | struct bfad_s *bfad = im_port->bfad; | |
1020 | struct bfad_port_s *port = im_port->port; | |
a36c61f9 | 1021 | char symname[BFA_SYMNAME_MAXLEN]; |
e0a08a30 | 1022 | struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(&bfad->bfa); |
7725ccfd JH |
1023 | |
1024 | fc_host_node_name(host) = | |
ba816ea8 | 1025 | cpu_to_be64((bfa_fcs_lport_get_nwwn(port->fcs_port))); |
7725ccfd | 1026 | fc_host_port_name(host) = |
ba816ea8 | 1027 | cpu_to_be64((bfa_fcs_lport_get_pwwn(port->fcs_port))); |
b504293f | 1028 | fc_host_max_npiv_vports(host) = bfa_lps_get_max_vport(&bfad->bfa); |
7725ccfd JH |
1029 | |
1030 | fc_host_supported_classes(host) = FC_COS_CLASS3; | |
1031 | ||
1032 | memset(fc_host_supported_fc4s(host), 0, | |
1033 | sizeof(fc_host_supported_fc4s(host))); | |
a36c61f9 | 1034 | if (supported_fc4s & BFA_LPORT_ROLE_FCP_IM) |
7725ccfd JH |
1035 | /* For FCP type 0x08 */ |
1036 | fc_host_supported_fc4s(host)[2] = 1; | |
7725ccfd JH |
1037 | /* For fibre channel services type 0x20 */ |
1038 | fc_host_supported_fc4s(host)[7] = 1; | |
1039 | ||
c6e23d83 | 1040 | strlcpy(symname, bfad->bfa_fcs.fabric.bport.port_cfg.sym_name.symname, |
a36c61f9 KG |
1041 | BFA_SYMNAME_MAXLEN); |
1042 | sprintf(fc_host_symbolic_name(host), "%s", symname); | |
7725ccfd | 1043 | |
a36c61f9 | 1044 | fc_host_supported_speeds(host) = bfad_im_supported_speeds(&bfad->bfa); |
5fbe25c7 | 1045 | fc_host_maxframe_size(host) = fcport->cfg.maxfrsize; |
7725ccfd JH |
1046 | } |
1047 | ||
1048 | static void | |
1049 | bfad_im_fc_rport_add(struct bfad_im_port_s *im_port, struct bfad_itnim_s *itnim) | |
1050 | { | |
1051 | struct fc_rport_identifiers rport_ids; | |
1052 | struct fc_rport *fc_rport; | |
1053 | struct bfad_itnim_data_s *itnim_data; | |
1054 | ||
1055 | rport_ids.node_name = | |
ba816ea8 | 1056 | cpu_to_be64(bfa_fcs_itnim_get_nwwn(&itnim->fcs_itnim)); |
7725ccfd | 1057 | rport_ids.port_name = |
ba816ea8 | 1058 | cpu_to_be64(bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim)); |
7725ccfd | 1059 | rport_ids.port_id = |
f16a1750 | 1060 | bfa_hton3b(bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim)); |
7725ccfd JH |
1061 | rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; |
1062 | ||
1063 | itnim->fc_rport = fc_rport = | |
1064 | fc_remote_port_add(im_port->shost, 0, &rport_ids); | |
1065 | ||
1066 | if (!fc_rport) | |
1067 | return; | |
1068 | ||
1069 | fc_rport->maxframe_size = | |
1070 | bfa_fcs_itnim_get_maxfrsize(&itnim->fcs_itnim); | |
1071 | fc_rport->supported_classes = bfa_fcs_itnim_get_cos(&itnim->fcs_itnim); | |
1072 | ||
1073 | itnim_data = fc_rport->dd_data; | |
1074 | itnim_data->itnim = itnim; | |
1075 | ||
1076 | rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; | |
1077 | ||
1078 | if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) | |
1079 | fc_remote_port_rolechg(fc_rport, rport_ids.roles); | |
1080 | ||
1081 | if ((fc_rport->scsi_target_id != -1) | |
1082 | && (fc_rport->scsi_target_id < MAX_FCP_TARGET)) | |
1083 | itnim->scsi_tgt_id = fc_rport->scsi_target_id; | |
1084 | ||
5b7db7af KG |
1085 | itnim->channel = fc_rport->channel; |
1086 | ||
7725ccfd JH |
1087 | return; |
1088 | } | |
1089 | ||
5fbe25c7 | 1090 | /* |
7725ccfd JH |
1091 | * Work queue handler using FC transport service |
1092 | * Context: kernel | |
1093 | */ | |
1094 | static void | |
1095 | bfad_im_itnim_work_handler(struct work_struct *work) | |
1096 | { | |
1097 | struct bfad_itnim_s *itnim = container_of(work, struct bfad_itnim_s, | |
1098 | itnim_work); | |
1099 | struct bfad_im_s *im = itnim->im; | |
1100 | struct bfad_s *bfad = im->bfad; | |
1101 | struct bfad_im_port_s *im_port; | |
1102 | unsigned long flags; | |
1103 | struct fc_rport *fc_rport; | |
1104 | wwn_t wwpn; | |
1105 | u32 fcid; | |
1106 | char wwpn_str[32], fcid_str[16]; | |
1107 | ||
1108 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1109 | im_port = itnim->im_port; | |
1110 | bfa_trc(bfad, itnim->state); | |
1111 | switch (itnim->state) { | |
1112 | case ITNIM_STATE_ONLINE: | |
1113 | if (!itnim->fc_rport) { | |
1114 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1115 | bfad_im_fc_rport_add(im_port, itnim); | |
1116 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1117 | wwpn = bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim); | |
1118 | fcid = bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim); | |
1119 | wwn2str(wwpn_str, wwpn); | |
1120 | fcid2str(fcid_str, fcid); | |
1121 | list_add_tail(&itnim->list_entry, | |
1122 | &im_port->itnim_mapped_list); | |
88166242 | 1123 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
a36c61f9 KG |
1124 | "ITNIM ONLINE Target: %d:0:%d " |
1125 | "FCID: %s WWPN: %s\n", | |
7725ccfd JH |
1126 | im_port->shost->host_no, |
1127 | itnim->scsi_tgt_id, | |
1128 | fcid_str, wwpn_str); | |
1129 | } else { | |
1130 | printk(KERN_WARNING | |
1131 | "%s: itnim %llx is already in online state\n", | |
f8ceafde | 1132 | __func__, |
7725ccfd JH |
1133 | bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim)); |
1134 | } | |
1135 | ||
1136 | break; | |
1137 | case ITNIM_STATE_OFFLINE_PENDING: | |
1138 | itnim->state = ITNIM_STATE_OFFLINE; | |
1139 | if (itnim->fc_rport) { | |
1140 | fc_rport = itnim->fc_rport; | |
1141 | ((struct bfad_itnim_data_s *) | |
1142 | fc_rport->dd_data)->itnim = NULL; | |
1143 | itnim->fc_rport = NULL; | |
1144 | if (!(im_port->port->flags & BFAD_PORT_DELETE)) { | |
1145 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1146 | fc_rport->dev_loss_tmo = | |
1147 | bfa_fcpim_path_tov_get(&bfad->bfa) + 1; | |
1148 | fc_remote_port_delete(fc_rport); | |
1149 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1150 | } | |
1151 | wwpn = bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim); | |
1152 | fcid = bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim); | |
1153 | wwn2str(wwpn_str, wwpn); | |
1154 | fcid2str(fcid_str, fcid); | |
1155 | list_del(&itnim->list_entry); | |
88166242 | 1156 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
a36c61f9 KG |
1157 | "ITNIM OFFLINE Target: %d:0:%d " |
1158 | "FCID: %s WWPN: %s\n", | |
7725ccfd JH |
1159 | im_port->shost->host_no, |
1160 | itnim->scsi_tgt_id, | |
1161 | fcid_str, wwpn_str); | |
1162 | } | |
1163 | break; | |
1164 | case ITNIM_STATE_FREE: | |
1165 | if (itnim->fc_rport) { | |
1166 | fc_rport = itnim->fc_rport; | |
1167 | ((struct bfad_itnim_data_s *) | |
1168 | fc_rport->dd_data)->itnim = NULL; | |
1169 | itnim->fc_rport = NULL; | |
1170 | if (!(im_port->port->flags & BFAD_PORT_DELETE)) { | |
1171 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1172 | fc_rport->dev_loss_tmo = | |
1173 | bfa_fcpim_path_tov_get(&bfad->bfa) + 1; | |
1174 | fc_remote_port_delete(fc_rport); | |
1175 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1176 | } | |
1177 | list_del(&itnim->list_entry); | |
1178 | } | |
1179 | ||
1180 | kfree(itnim); | |
1181 | break; | |
1182 | default: | |
d4b671c5 | 1183 | WARN_ON(1); |
7725ccfd JH |
1184 | break; |
1185 | } | |
1186 | ||
1187 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1188 | } | |
1189 | ||
5fbe25c7 | 1190 | /* |
7725ccfd JH |
1191 | * Scsi_Host template entry, queue a SCSI command to the BFAD. |
1192 | */ | |
1193 | static int | |
f281233d | 1194 | bfad_im_queuecommand_lck(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *)) |
7725ccfd JH |
1195 | { |
1196 | struct bfad_im_port_s *im_port = | |
1197 | (struct bfad_im_port_s *) cmnd->device->host->hostdata[0]; | |
1198 | struct bfad_s *bfad = im_port->bfad; | |
1199 | struct bfad_itnim_data_s *itnim_data = cmnd->device->hostdata; | |
1200 | struct bfad_itnim_s *itnim; | |
1201 | struct bfa_ioim_s *hal_io; | |
1202 | unsigned long flags; | |
1203 | int rc; | |
a36c61f9 | 1204 | int sg_cnt = 0; |
7725ccfd JH |
1205 | struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); |
1206 | ||
1207 | rc = fc_remote_port_chkready(rport); | |
1208 | if (rc) { | |
1209 | cmnd->result = rc; | |
1210 | done(cmnd); | |
1211 | return 0; | |
1212 | } | |
1213 | ||
881c1b3c KG |
1214 | if (bfad->bfad_flags & BFAD_EEH_BUSY) { |
1215 | if (bfad->bfad_flags & BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE) | |
1216 | cmnd->result = DID_NO_CONNECT << 16; | |
1217 | else | |
1218 | cmnd->result = DID_REQUEUE << 16; | |
1219 | done(cmnd); | |
1220 | return 0; | |
1221 | } | |
1222 | ||
7725ccfd | 1223 | sg_cnt = scsi_dma_map(cmnd); |
7725ccfd JH |
1224 | if (sg_cnt < 0) |
1225 | return SCSI_MLQUEUE_HOST_BUSY; | |
1226 | ||
1227 | cmnd->scsi_done = done; | |
1228 | ||
1229 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1230 | if (!(bfad->bfad_flags & BFAD_HAL_START_DONE)) { | |
1231 | printk(KERN_WARNING | |
1232 | "bfad%d, queuecommand %p %x failed, BFA stopped\n", | |
1233 | bfad->inst_no, cmnd, cmnd->cmnd[0]); | |
1234 | cmnd->result = ScsiResult(DID_NO_CONNECT, 0); | |
1235 | goto out_fail_cmd; | |
1236 | } | |
1237 | ||
a36c61f9 | 1238 | |
7725ccfd JH |
1239 | itnim = itnim_data->itnim; |
1240 | if (!itnim) { | |
1241 | cmnd->result = ScsiResult(DID_IMM_RETRY, 0); | |
1242 | goto out_fail_cmd; | |
1243 | } | |
1244 | ||
1245 | hal_io = bfa_ioim_alloc(&bfad->bfa, (struct bfad_ioim_s *) cmnd, | |
1246 | itnim->bfa_itnim, sg_cnt); | |
1247 | if (!hal_io) { | |
1248 | printk(KERN_WARNING "hal_io failure\n"); | |
1249 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1250 | scsi_dma_unmap(cmnd); | |
1251 | return SCSI_MLQUEUE_HOST_BUSY; | |
1252 | } | |
1253 | ||
1254 | cmnd->host_scribble = (char *)hal_io; | |
7725ccfd JH |
1255 | bfa_ioim_start(hal_io); |
1256 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1257 | ||
1258 | return 0; | |
1259 | ||
1260 | out_fail_cmd: | |
1261 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1262 | scsi_dma_unmap(cmnd); | |
1263 | if (done) | |
1264 | done(cmnd); | |
1265 | ||
1266 | return 0; | |
1267 | } | |
1268 | ||
f281233d JG |
1269 | static DEF_SCSI_QCMD(bfad_im_queuecommand) |
1270 | ||
7725ccfd | 1271 | void |
f16a1750 | 1272 | bfad_rport_online_wait(struct bfad_s *bfad) |
7725ccfd JH |
1273 | { |
1274 | int i; | |
1275 | int rport_delay = 10; | |
1276 | ||
1277 | for (i = 0; !(bfad->bfad_flags & BFAD_PORT_ONLINE) | |
a36c61f9 KG |
1278 | && i < bfa_linkup_delay; i++) { |
1279 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1280 | schedule_timeout(HZ); | |
1281 | } | |
7725ccfd JH |
1282 | |
1283 | if (bfad->bfad_flags & BFAD_PORT_ONLINE) { | |
1284 | rport_delay = rport_delay < bfa_linkup_delay ? | |
a36c61f9 | 1285 | rport_delay : bfa_linkup_delay; |
7725ccfd | 1286 | for (i = 0; !(bfad->bfad_flags & BFAD_RPORT_ONLINE) |
a36c61f9 KG |
1287 | && i < rport_delay; i++) { |
1288 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1289 | schedule_timeout(HZ); | |
1290 | } | |
7725ccfd | 1291 | |
a36c61f9 KG |
1292 | if (rport_delay > 0 && (bfad->bfad_flags & BFAD_RPORT_ONLINE)) { |
1293 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1294 | schedule_timeout(rport_delay * HZ); | |
1295 | } | |
7725ccfd JH |
1296 | } |
1297 | } | |
1298 | ||
1299 | int | |
f16a1750 | 1300 | bfad_get_linkup_delay(struct bfad_s *bfad) |
7725ccfd | 1301 | { |
a36c61f9 KG |
1302 | u8 nwwns = 0; |
1303 | wwn_t wwns[BFA_PREBOOT_BOOTLUN_MAX]; | |
1304 | int linkup_delay; | |
7725ccfd JH |
1305 | |
1306 | /* | |
1307 | * Querying for the boot target port wwns | |
1308 | * -- read from boot information in flash. | |
a36c61f9 KG |
1309 | * If nwwns > 0 => boot over SAN and set linkup_delay = 30 |
1310 | * else => local boot machine set linkup_delay = 0 | |
7725ccfd JH |
1311 | */ |
1312 | ||
15b64a83 | 1313 | bfa_iocfc_get_bootwwns(&bfad->bfa, &nwwns, wwns); |
7725ccfd | 1314 | |
a36c61f9 KG |
1315 | if (nwwns > 0) |
1316 | /* If Boot over SAN set linkup_delay = 30sec */ | |
1317 | linkup_delay = 30; | |
1318 | else | |
1319 | /* If local boot; no linkup_delay */ | |
1320 | linkup_delay = 0; | |
7725ccfd | 1321 | |
a36c61f9 | 1322 | return linkup_delay; |
7725ccfd | 1323 | } |