Commit | Line | Data |
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52fa7bf9 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
7725ccfd | 2 | /* |
889d0d42 AG |
3 | * Copyright (c) 2005-2014 Brocade Communications Systems, Inc. |
4 | * Copyright (c) 2014- QLogic Corporation. | |
7725ccfd | 5 | * All rights reserved |
889d0d42 | 6 | * www.qlogic.com |
7725ccfd | 7 | * |
31e1d569 | 8 | * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter. |
7725ccfd JH |
9 | */ |
10 | ||
5fbe25c7 | 11 | /* |
7725ccfd JH |
12 | * bfad_im.c Linux driver IM module. |
13 | */ | |
14 | ||
09703660 PG |
15 | #include <linux/export.h> |
16 | ||
7725ccfd JH |
17 | #include "bfad_drv.h" |
18 | #include "bfad_im.h" | |
a36c61f9 | 19 | #include "bfa_fcs.h" |
7725ccfd JH |
20 | |
21 | BFA_TRC_FILE(LDRV, IM); | |
22 | ||
23 | DEFINE_IDR(bfad_im_port_index); | |
24 | struct scsi_transport_template *bfad_im_scsi_transport_template; | |
b504293f | 25 | struct scsi_transport_template *bfad_im_scsi_vport_transport_template; |
7725ccfd | 26 | static void bfad_im_itnim_work_handler(struct work_struct *work); |
f281233d | 27 | static int bfad_im_queuecommand(struct Scsi_Host *h, struct scsi_cmnd *cmnd); |
7725ccfd | 28 | static int bfad_im_slave_alloc(struct scsi_device *sdev); |
a36c61f9 KG |
29 | static void bfad_im_fc_rport_add(struct bfad_im_port_s *im_port, |
30 | struct bfad_itnim_s *itnim); | |
7725ccfd JH |
31 | |
32 | void | |
33 | bfa_cb_ioim_done(void *drv, struct bfad_ioim_s *dio, | |
34 | enum bfi_ioim_status io_status, u8 scsi_status, | |
35 | int sns_len, u8 *sns_info, s32 residue) | |
36 | { | |
37 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio; | |
38 | struct bfad_s *bfad = drv; | |
39 | struct bfad_itnim_data_s *itnim_data; | |
40 | struct bfad_itnim_s *itnim; | |
95aa060d | 41 | u8 host_status = DID_OK; |
7725ccfd JH |
42 | |
43 | switch (io_status) { | |
44 | case BFI_IOIM_STS_OK: | |
45 | bfa_trc(bfad, scsi_status); | |
7725ccfd JH |
46 | scsi_set_resid(cmnd, 0); |
47 | ||
48 | if (sns_len > 0) { | |
49 | bfa_trc(bfad, sns_len); | |
50 | if (sns_len > SCSI_SENSE_BUFFERSIZE) | |
51 | sns_len = SCSI_SENSE_BUFFERSIZE; | |
52 | memcpy(cmnd->sense_buffer, sns_info, sns_len); | |
53 | } | |
a36c61f9 | 54 | |
95aa060d KG |
55 | if (residue > 0) { |
56 | bfa_trc(bfad, residue); | |
7725ccfd | 57 | scsi_set_resid(cmnd, residue); |
95aa060d KG |
58 | if (!sns_len && (scsi_status == SAM_STAT_GOOD) && |
59 | (scsi_bufflen(cmnd) - residue) < | |
60 | cmnd->underflow) { | |
61 | bfa_trc(bfad, 0); | |
62 | host_status = DID_ERROR; | |
63 | } | |
64 | } | |
55c9d371 | 65 | cmnd->result = host_status << 16 | scsi_status; |
95aa060d | 66 | |
7725ccfd JH |
67 | break; |
68 | ||
7725ccfd | 69 | case BFI_IOIM_STS_TIMEDOUT: |
55c9d371 | 70 | cmnd->result = DID_TIME_OUT << 16; |
c60b7b12 | 71 | break; |
7725ccfd | 72 | case BFI_IOIM_STS_PATHTOV: |
55c9d371 | 73 | cmnd->result = DID_TRANSPORT_DISRUPTED << 16; |
c60b7b12 | 74 | break; |
7725ccfd | 75 | default: |
55c9d371 | 76 | cmnd->result = DID_ERROR << 16; |
7725ccfd JH |
77 | } |
78 | ||
79 | /* Unmap DMA, if host is NULL, it means a scsi passthru cmd */ | |
80 | if (cmnd->device->host != NULL) | |
81 | scsi_dma_unmap(cmnd); | |
82 | ||
83 | cmnd->host_scribble = NULL; | |
84 | bfa_trc(bfad, cmnd->result); | |
85 | ||
86 | itnim_data = cmnd->device->hostdata; | |
87 | if (itnim_data) { | |
88 | itnim = itnim_data->itnim; | |
89 | if (!cmnd->result && itnim && | |
90 | (bfa_lun_queue_depth > cmnd->device->queue_depth)) { | |
91 | /* Queue depth adjustment for good status completion */ | |
f16a1750 | 92 | bfad_ramp_up_qdepth(itnim, cmnd->device); |
7725ccfd JH |
93 | } else if (cmnd->result == SAM_STAT_TASK_SET_FULL && itnim) { |
94 | /* qfull handling */ | |
f16a1750 | 95 | bfad_handle_qfull(itnim, cmnd->device); |
7725ccfd JH |
96 | } |
97 | } | |
98 | ||
4316b5b8 | 99 | scsi_done(cmnd); |
7725ccfd JH |
100 | } |
101 | ||
102 | void | |
103 | bfa_cb_ioim_good_comp(void *drv, struct bfad_ioim_s *dio) | |
104 | { | |
105 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio; | |
106 | struct bfad_itnim_data_s *itnim_data; | |
107 | struct bfad_itnim_s *itnim; | |
108 | ||
eb74b932 | 109 | cmnd->result = DID_OK << 16 | SAM_STAT_GOOD; |
7725ccfd JH |
110 | |
111 | /* Unmap DMA, if host is NULL, it means a scsi passthru cmd */ | |
112 | if (cmnd->device->host != NULL) | |
113 | scsi_dma_unmap(cmnd); | |
114 | ||
115 | cmnd->host_scribble = NULL; | |
116 | ||
117 | /* Queue depth adjustment */ | |
118 | if (bfa_lun_queue_depth > cmnd->device->queue_depth) { | |
119 | itnim_data = cmnd->device->hostdata; | |
120 | if (itnim_data) { | |
121 | itnim = itnim_data->itnim; | |
122 | if (itnim) | |
f16a1750 | 123 | bfad_ramp_up_qdepth(itnim, cmnd->device); |
7725ccfd JH |
124 | } |
125 | } | |
126 | ||
4316b5b8 | 127 | scsi_done(cmnd); |
7725ccfd JH |
128 | } |
129 | ||
130 | void | |
131 | bfa_cb_ioim_abort(void *drv, struct bfad_ioim_s *dio) | |
132 | { | |
133 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dio; | |
134 | struct bfad_s *bfad = drv; | |
135 | ||
55c9d371 | 136 | cmnd->result = DID_ERROR << 16; |
7725ccfd JH |
137 | |
138 | /* Unmap DMA, if host is NULL, it means a scsi passthru cmd */ | |
139 | if (cmnd->device->host != NULL) | |
140 | scsi_dma_unmap(cmnd); | |
141 | ||
142 | bfa_trc(bfad, cmnd->result); | |
143 | cmnd->host_scribble = NULL; | |
144 | } | |
145 | ||
146 | void | |
147 | bfa_cb_tskim_done(void *bfad, struct bfad_tskim_s *dtsk, | |
148 | enum bfi_tskim_status tsk_status) | |
149 | { | |
150 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *)dtsk; | |
151 | wait_queue_head_t *wq; | |
152 | ||
153 | cmnd->SCp.Status |= tsk_status << 1; | |
154 | set_bit(IO_DONE_BIT, (unsigned long *)&cmnd->SCp.Status); | |
155 | wq = (wait_queue_head_t *) cmnd->SCp.ptr; | |
156 | cmnd->SCp.ptr = NULL; | |
157 | ||
158 | if (wq) | |
159 | wake_up(wq); | |
160 | } | |
161 | ||
5fbe25c7 | 162 | /* |
7725ccfd JH |
163 | * Scsi_Host_template SCSI host template |
164 | */ | |
5fbe25c7 | 165 | /* |
7725ccfd JH |
166 | * Scsi_Host template entry, returns BFAD PCI info. |
167 | */ | |
168 | static const char * | |
169 | bfad_im_info(struct Scsi_Host *shost) | |
170 | { | |
171 | static char bfa_buf[256]; | |
172 | struct bfad_im_port_s *im_port = | |
173 | (struct bfad_im_port_s *) shost->hostdata[0]; | |
a36c61f9 | 174 | struct bfad_s *bfad = im_port->bfad; |
7725ccfd JH |
175 | |
176 | memset(bfa_buf, 0, sizeof(bfa_buf)); | |
75332a70 | 177 | snprintf(bfa_buf, sizeof(bfa_buf), |
31e1d569 | 178 | "QLogic BR-series FC/FCOE Adapter, hwpath: %s driver: %s", |
75332a70 | 179 | bfad->pci_name, BFAD_DRIVER_VERSION); |
a36c61f9 | 180 | |
7725ccfd JH |
181 | return bfa_buf; |
182 | } | |
183 | ||
5fbe25c7 | 184 | /* |
7725ccfd JH |
185 | * Scsi_Host template entry, aborts the specified SCSI command. |
186 | * | |
187 | * Returns: SUCCESS or FAILED. | |
188 | */ | |
189 | static int | |
190 | bfad_im_abort_handler(struct scsi_cmnd *cmnd) | |
191 | { | |
192 | struct Scsi_Host *shost = cmnd->device->host; | |
193 | struct bfad_im_port_s *im_port = | |
194 | (struct bfad_im_port_s *) shost->hostdata[0]; | |
195 | struct bfad_s *bfad = im_port->bfad; | |
196 | struct bfa_ioim_s *hal_io; | |
197 | unsigned long flags; | |
198 | u32 timeout; | |
199 | int rc = FAILED; | |
200 | ||
201 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
202 | hal_io = (struct bfa_ioim_s *) cmnd->host_scribble; | |
203 | if (!hal_io) { | |
9e03aa2f | 204 | /* IO has been completed, return success */ |
7725ccfd JH |
205 | rc = SUCCESS; |
206 | goto out; | |
207 | } | |
208 | if (hal_io->dio != (struct bfad_ioim_s *) cmnd) { | |
209 | rc = FAILED; | |
210 | goto out; | |
211 | } | |
212 | ||
213 | bfa_trc(bfad, hal_io->iotag); | |
88166242 JH |
214 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
215 | "scsi%d: abort cmnd %p iotag %x\n", | |
7725ccfd | 216 | im_port->shost->host_no, cmnd, hal_io->iotag); |
a36c61f9 | 217 | (void) bfa_ioim_abort(hal_io); |
7725ccfd JH |
218 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); |
219 | ||
220 | /* Need to wait until the command get aborted */ | |
221 | timeout = 10; | |
222 | while ((struct bfa_ioim_s *) cmnd->host_scribble == hal_io) { | |
223 | set_current_state(TASK_UNINTERRUPTIBLE); | |
224 | schedule_timeout(timeout); | |
225 | if (timeout < 4 * HZ) | |
226 | timeout *= 2; | |
227 | } | |
228 | ||
4316b5b8 | 229 | scsi_done(cmnd); |
7725ccfd | 230 | bfa_trc(bfad, hal_io->iotag); |
88166242 | 231 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
a36c61f9 | 232 | "scsi%d: complete abort 0x%p iotag 0x%x\n", |
7725ccfd JH |
233 | im_port->shost->host_no, cmnd, hal_io->iotag); |
234 | return SUCCESS; | |
235 | out: | |
236 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
237 | return rc; | |
238 | } | |
239 | ||
240 | static bfa_status_t | |
241 | bfad_im_target_reset_send(struct bfad_s *bfad, struct scsi_cmnd *cmnd, | |
242 | struct bfad_itnim_s *itnim) | |
243 | { | |
244 | struct bfa_tskim_s *tskim; | |
245 | struct bfa_itnim_s *bfa_itnim; | |
246 | bfa_status_t rc = BFA_STATUS_OK; | |
f314878a | 247 | struct scsi_lun scsilun; |
7725ccfd | 248 | |
7725ccfd JH |
249 | tskim = bfa_tskim_alloc(&bfad->bfa, (struct bfad_tskim_s *) cmnd); |
250 | if (!tskim) { | |
88166242 | 251 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, |
a36c61f9 | 252 | "target reset, fail to allocate tskim\n"); |
7725ccfd JH |
253 | rc = BFA_STATUS_FAILED; |
254 | goto out; | |
255 | } | |
256 | ||
257 | /* | |
258 | * Set host_scribble to NULL to avoid aborting a task command if | |
259 | * happens. | |
260 | */ | |
261 | cmnd->host_scribble = NULL; | |
262 | cmnd->SCp.Status = 0; | |
263 | bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim->fcs_itnim); | |
3c3da12d AG |
264 | /* |
265 | * bfa_itnim can be NULL if the port gets disconnected and the bfa | |
266 | * and fcs layers have cleaned up their nexus with the targets and | |
267 | * the same has not been cleaned up by the shim | |
268 | */ | |
269 | if (bfa_itnim == NULL) { | |
270 | bfa_tskim_free(tskim); | |
271 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, | |
272 | "target reset, bfa_itnim is NULL\n"); | |
273 | rc = BFA_STATUS_FAILED; | |
274 | goto out; | |
275 | } | |
276 | ||
f314878a MZ |
277 | memset(&scsilun, 0, sizeof(scsilun)); |
278 | bfa_tskim_start(tskim, bfa_itnim, scsilun, | |
7725ccfd JH |
279 | FCP_TM_TARGET_RESET, BFAD_TARGET_RESET_TMO); |
280 | out: | |
281 | return rc; | |
282 | } | |
283 | ||
5fbe25c7 | 284 | /* |
7725ccfd JH |
285 | * Scsi_Host template entry, resets a LUN and abort its all commands. |
286 | * | |
287 | * Returns: SUCCESS or FAILED. | |
288 | * | |
289 | */ | |
290 | static int | |
291 | bfad_im_reset_lun_handler(struct scsi_cmnd *cmnd) | |
292 | { | |
293 | struct Scsi_Host *shost = cmnd->device->host; | |
294 | struct bfad_im_port_s *im_port = | |
295 | (struct bfad_im_port_s *) shost->hostdata[0]; | |
296 | struct bfad_itnim_data_s *itnim_data = cmnd->device->hostdata; | |
297 | struct bfad_s *bfad = im_port->bfad; | |
298 | struct bfa_tskim_s *tskim; | |
299 | struct bfad_itnim_s *itnim; | |
300 | struct bfa_itnim_s *bfa_itnim; | |
6d154db6 | 301 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq); |
7725ccfd JH |
302 | int rc = SUCCESS; |
303 | unsigned long flags; | |
304 | enum bfi_tskim_status task_status; | |
f314878a | 305 | struct scsi_lun scsilun; |
7725ccfd JH |
306 | |
307 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
308 | itnim = itnim_data->itnim; | |
309 | if (!itnim) { | |
310 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
311 | rc = FAILED; | |
312 | goto out; | |
313 | } | |
314 | ||
315 | tskim = bfa_tskim_alloc(&bfad->bfa, (struct bfad_tskim_s *) cmnd); | |
316 | if (!tskim) { | |
88166242 | 317 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, |
7725ccfd JH |
318 | "LUN reset, fail to allocate tskim"); |
319 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
320 | rc = FAILED; | |
321 | goto out; | |
322 | } | |
323 | ||
5fbe25c7 | 324 | /* |
7725ccfd JH |
325 | * Set host_scribble to NULL to avoid aborting a task command |
326 | * if happens. | |
327 | */ | |
328 | cmnd->host_scribble = NULL; | |
329 | cmnd->SCp.ptr = (char *)&wq; | |
330 | cmnd->SCp.Status = 0; | |
331 | bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim->fcs_itnim); | |
3c3da12d AG |
332 | /* |
333 | * bfa_itnim can be NULL if the port gets disconnected and the bfa | |
334 | * and fcs layers have cleaned up their nexus with the targets and | |
335 | * the same has not been cleaned up by the shim | |
336 | */ | |
337 | if (bfa_itnim == NULL) { | |
338 | bfa_tskim_free(tskim); | |
339 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, | |
340 | "lun reset, bfa_itnim is NULL\n"); | |
341 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
342 | rc = FAILED; | |
343 | goto out; | |
344 | } | |
f314878a MZ |
345 | int_to_scsilun(cmnd->device->lun, &scsilun); |
346 | bfa_tskim_start(tskim, bfa_itnim, scsilun, | |
7725ccfd JH |
347 | FCP_TM_LUN_RESET, BFAD_LUN_RESET_TMO); |
348 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
349 | ||
350 | wait_event(wq, test_bit(IO_DONE_BIT, | |
351 | (unsigned long *)&cmnd->SCp.Status)); | |
352 | ||
353 | task_status = cmnd->SCp.Status >> 1; | |
354 | if (task_status != BFI_TSKIM_STS_OK) { | |
88166242 | 355 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, |
a36c61f9 | 356 | "LUN reset failure, status: %d\n", task_status); |
7725ccfd JH |
357 | rc = FAILED; |
358 | } | |
359 | ||
360 | out: | |
361 | return rc; | |
362 | } | |
363 | ||
5fbe25c7 | 364 | /* |
1b7092f3 | 365 | * Scsi_Host template entry, resets the target and abort all commands. |
7725ccfd JH |
366 | */ |
367 | static int | |
1b7092f3 | 368 | bfad_im_reset_target_handler(struct scsi_cmnd *cmnd) |
7725ccfd JH |
369 | { |
370 | struct Scsi_Host *shost = cmnd->device->host; | |
1b7092f3 | 371 | struct scsi_target *starget = scsi_target(cmnd->device); |
7725ccfd JH |
372 | struct bfad_im_port_s *im_port = |
373 | (struct bfad_im_port_s *) shost->hostdata[0]; | |
374 | struct bfad_s *bfad = im_port->bfad; | |
375 | struct bfad_itnim_s *itnim; | |
376 | unsigned long flags; | |
1b7092f3 | 377 | u32 rc, rtn = FAILED; |
6d154db6 | 378 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq); |
7725ccfd JH |
379 | enum bfi_tskim_status task_status; |
380 | ||
381 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1b7092f3 HR |
382 | itnim = bfad_get_itnim(im_port, starget->id); |
383 | if (itnim) { | |
384 | cmnd->SCp.ptr = (char *)&wq; | |
385 | rc = bfad_im_target_reset_send(bfad, cmnd, itnim); | |
386 | if (rc == BFA_STATUS_OK) { | |
7725ccfd JH |
387 | /* wait target reset to complete */ |
388 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
389 | wait_event(wq, test_bit(IO_DONE_BIT, | |
390 | (unsigned long *)&cmnd->SCp.Status)); | |
391 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
392 | ||
393 | task_status = cmnd->SCp.Status >> 1; | |
1b7092f3 | 394 | if (task_status != BFI_TSKIM_STS_OK) |
88166242 | 395 | BFA_LOG(KERN_ERR, bfad, bfa_log_level, |
7725ccfd JH |
396 | "target reset failure," |
397 | " status: %d\n", task_status); | |
1b7092f3 HR |
398 | else |
399 | rtn = SUCCESS; | |
7725ccfd JH |
400 | } |
401 | } | |
402 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
403 | ||
1b7092f3 | 404 | return rtn; |
7725ccfd JH |
405 | } |
406 | ||
5fbe25c7 | 407 | /* |
7725ccfd JH |
408 | * Scsi_Host template entry slave_destroy. |
409 | */ | |
410 | static void | |
411 | bfad_im_slave_destroy(struct scsi_device *sdev) | |
412 | { | |
413 | sdev->hostdata = NULL; | |
414 | return; | |
415 | } | |
416 | ||
5fbe25c7 | 417 | /* |
7725ccfd JH |
418 | * BFA FCS itnim callbacks |
419 | */ | |
420 | ||
5fbe25c7 | 421 | /* |
7725ccfd JH |
422 | * BFA FCS itnim alloc callback, after successful PRLI |
423 | * Context: Interrupt | |
424 | */ | |
4e51af9e | 425 | int |
7725ccfd JH |
426 | bfa_fcb_itnim_alloc(struct bfad_s *bfad, struct bfa_fcs_itnim_s **itnim, |
427 | struct bfad_itnim_s **itnim_drv) | |
428 | { | |
429 | *itnim_drv = kzalloc(sizeof(struct bfad_itnim_s), GFP_ATOMIC); | |
430 | if (*itnim_drv == NULL) | |
4e51af9e | 431 | return -ENOMEM; |
7725ccfd JH |
432 | |
433 | (*itnim_drv)->im = bfad->im; | |
434 | *itnim = &(*itnim_drv)->fcs_itnim; | |
435 | (*itnim_drv)->state = ITNIM_STATE_NONE; | |
436 | ||
437 | /* | |
438 | * Initiaze the itnim_work | |
439 | */ | |
440 | INIT_WORK(&(*itnim_drv)->itnim_work, bfad_im_itnim_work_handler); | |
441 | bfad->bfad_flags |= BFAD_RPORT_ONLINE; | |
4e51af9e | 442 | return 0; |
7725ccfd JH |
443 | } |
444 | ||
5fbe25c7 | 445 | /* |
7725ccfd JH |
446 | * BFA FCS itnim free callback. |
447 | * Context: Interrupt. bfad_lock is held | |
448 | */ | |
449 | void | |
450 | bfa_fcb_itnim_free(struct bfad_s *bfad, struct bfad_itnim_s *itnim_drv) | |
451 | { | |
452 | struct bfad_port_s *port; | |
453 | wwn_t wwpn; | |
454 | u32 fcid; | |
455 | char wwpn_str[32], fcid_str[16]; | |
a36c61f9 | 456 | struct bfad_im_s *im = itnim_drv->im; |
7725ccfd JH |
457 | |
458 | /* online to free state transtion should not happen */ | |
d4b671c5 | 459 | WARN_ON(itnim_drv->state == ITNIM_STATE_ONLINE); |
7725ccfd JH |
460 | |
461 | itnim_drv->queue_work = 1; | |
462 | /* offline request is not yet done, use the same request to free */ | |
463 | if (itnim_drv->state == ITNIM_STATE_OFFLINE_PENDING) | |
464 | itnim_drv->queue_work = 0; | |
465 | ||
466 | itnim_drv->state = ITNIM_STATE_FREE; | |
467 | port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim); | |
468 | itnim_drv->im_port = port->im_port; | |
469 | wwpn = bfa_fcs_itnim_get_pwwn(&itnim_drv->fcs_itnim); | |
470 | fcid = bfa_fcs_itnim_get_fcid(&itnim_drv->fcs_itnim); | |
471 | wwn2str(wwpn_str, wwpn); | |
472 | fcid2str(fcid_str, fcid); | |
88166242 | 473 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
a36c61f9 | 474 | "ITNIM FREE scsi%d: FCID: %s WWPN: %s\n", |
7725ccfd JH |
475 | port->im_port->shost->host_no, |
476 | fcid_str, wwpn_str); | |
a36c61f9 KG |
477 | |
478 | /* ITNIM processing */ | |
479 | if (itnim_drv->queue_work) | |
480 | queue_work(im->drv_workq, &itnim_drv->itnim_work); | |
7725ccfd JH |
481 | } |
482 | ||
5fbe25c7 | 483 | /* |
7725ccfd JH |
484 | * BFA FCS itnim online callback. |
485 | * Context: Interrupt. bfad_lock is held | |
486 | */ | |
487 | void | |
488 | bfa_fcb_itnim_online(struct bfad_itnim_s *itnim_drv) | |
489 | { | |
490 | struct bfad_port_s *port; | |
a36c61f9 | 491 | struct bfad_im_s *im = itnim_drv->im; |
7725ccfd JH |
492 | |
493 | itnim_drv->bfa_itnim = bfa_fcs_itnim_get_halitn(&itnim_drv->fcs_itnim); | |
494 | port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim); | |
495 | itnim_drv->state = ITNIM_STATE_ONLINE; | |
496 | itnim_drv->queue_work = 1; | |
497 | itnim_drv->im_port = port->im_port; | |
a36c61f9 KG |
498 | |
499 | /* ITNIM processing */ | |
500 | if (itnim_drv->queue_work) | |
501 | queue_work(im->drv_workq, &itnim_drv->itnim_work); | |
7725ccfd JH |
502 | } |
503 | ||
5fbe25c7 | 504 | /* |
7725ccfd JH |
505 | * BFA FCS itnim offline callback. |
506 | * Context: Interrupt. bfad_lock is held | |
507 | */ | |
508 | void | |
509 | bfa_fcb_itnim_offline(struct bfad_itnim_s *itnim_drv) | |
510 | { | |
511 | struct bfad_port_s *port; | |
512 | struct bfad_s *bfad; | |
a36c61f9 | 513 | struct bfad_im_s *im = itnim_drv->im; |
7725ccfd JH |
514 | |
515 | port = bfa_fcs_itnim_get_drvport(&itnim_drv->fcs_itnim); | |
516 | bfad = port->bfad; | |
517 | if ((bfad->pport.flags & BFAD_PORT_DELETE) || | |
518 | (port->flags & BFAD_PORT_DELETE)) { | |
519 | itnim_drv->state = ITNIM_STATE_OFFLINE; | |
520 | return; | |
521 | } | |
522 | itnim_drv->im_port = port->im_port; | |
523 | itnim_drv->state = ITNIM_STATE_OFFLINE_PENDING; | |
524 | itnim_drv->queue_work = 1; | |
7725ccfd | 525 | |
a36c61f9 KG |
526 | /* ITNIM processing */ |
527 | if (itnim_drv->queue_work) | |
528 | queue_work(im->drv_workq, &itnim_drv->itnim_work); | |
7725ccfd JH |
529 | } |
530 | ||
5fbe25c7 | 531 | /* |
7725ccfd JH |
532 | * Allocate a Scsi_Host for a port. |
533 | */ | |
534 | int | |
b504293f | 535 | bfad_im_scsi_host_alloc(struct bfad_s *bfad, struct bfad_im_port_s *im_port, |
a36c61f9 | 536 | struct device *dev) |
7725ccfd | 537 | { |
48d83282 | 538 | struct bfad_im_port_pointer *im_portp; |
5f6b4e1e | 539 | int error; |
7725ccfd | 540 | |
42b426ec | 541 | mutex_lock(&bfad_mutex); |
70a9755d TH |
542 | error = idr_alloc(&bfad_im_port_index, im_port, 0, 0, GFP_KERNEL); |
543 | if (error < 0) { | |
42b426ec | 544 | mutex_unlock(&bfad_mutex); |
70a9755d | 545 | printk(KERN_WARNING "idr_alloc failure\n"); |
7725ccfd JH |
546 | goto out; |
547 | } | |
70a9755d | 548 | im_port->idr_id = error; |
42b426ec JH |
549 | mutex_unlock(&bfad_mutex); |
550 | ||
f16a1750 | 551 | im_port->shost = bfad_scsi_host_alloc(im_port, bfad); |
7725ccfd JH |
552 | if (!im_port->shost) { |
553 | error = 1; | |
554 | goto out_free_idr; | |
555 | } | |
556 | ||
48d83282 AB |
557 | im_portp = shost_priv(im_port->shost); |
558 | im_portp->p = im_port; | |
7725ccfd JH |
559 | im_port->shost->unique_id = im_port->idr_id; |
560 | im_port->shost->this_id = -1; | |
561 | im_port->shost->max_id = MAX_FCP_TARGET; | |
562 | im_port->shost->max_lun = MAX_FCP_LUN; | |
563 | im_port->shost->max_cmd_len = 16; | |
564 | im_port->shost->can_queue = bfad->cfg_data.ioc_queue_depth; | |
b504293f JH |
565 | if (im_port->port->pvb_type == BFAD_PORT_PHYS_BASE) |
566 | im_port->shost->transportt = bfad_im_scsi_transport_template; | |
567 | else | |
568 | im_port->shost->transportt = | |
569 | bfad_im_scsi_vport_transport_template; | |
7725ccfd | 570 | |
c54d557c | 571 | error = scsi_add_host_with_dma(im_port->shost, dev, &bfad->pcidev->dev); |
7725ccfd | 572 | if (error) { |
b504293f | 573 | printk(KERN_WARNING "scsi_add_host failure %d\n", error); |
7725ccfd JH |
574 | goto out_fc_rel; |
575 | } | |
576 | ||
7725ccfd JH |
577 | return 0; |
578 | ||
579 | out_fc_rel: | |
580 | scsi_host_put(im_port->shost); | |
d9883548 | 581 | im_port->shost = NULL; |
7725ccfd | 582 | out_free_idr: |
42b426ec | 583 | mutex_lock(&bfad_mutex); |
7725ccfd | 584 | idr_remove(&bfad_im_port_index, im_port->idr_id); |
42b426ec | 585 | mutex_unlock(&bfad_mutex); |
7725ccfd JH |
586 | out: |
587 | return error; | |
588 | } | |
589 | ||
590 | void | |
591 | bfad_im_scsi_host_free(struct bfad_s *bfad, struct bfad_im_port_s *im_port) | |
592 | { | |
7725ccfd | 593 | bfa_trc(bfad, bfad->inst_no); |
88166242 | 594 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, "Free scsi%d\n", |
7725ccfd JH |
595 | im_port->shost->host_no); |
596 | ||
597 | fc_remove_host(im_port->shost); | |
598 | ||
599 | scsi_remove_host(im_port->shost); | |
600 | scsi_host_put(im_port->shost); | |
601 | ||
42b426ec | 602 | mutex_lock(&bfad_mutex); |
7725ccfd | 603 | idr_remove(&bfad_im_port_index, im_port->idr_id); |
42b426ec | 604 | mutex_unlock(&bfad_mutex); |
7725ccfd JH |
605 | } |
606 | ||
607 | static void | |
608 | bfad_im_port_delete_handler(struct work_struct *work) | |
609 | { | |
610 | struct bfad_im_port_s *im_port = | |
611 | container_of(work, struct bfad_im_port_s, port_delete_work); | |
612 | ||
b504293f JH |
613 | if (im_port->port->pvb_type != BFAD_PORT_PHYS_BASE) { |
614 | im_port->flags |= BFAD_PORT_DELETE; | |
615 | fc_vport_terminate(im_port->fc_vport); | |
616 | } | |
7725ccfd JH |
617 | } |
618 | ||
619 | bfa_status_t | |
620 | bfad_im_port_new(struct bfad_s *bfad, struct bfad_port_s *port) | |
621 | { | |
622 | int rc = BFA_STATUS_OK; | |
623 | struct bfad_im_port_s *im_port; | |
624 | ||
625 | im_port = kzalloc(sizeof(struct bfad_im_port_s), GFP_ATOMIC); | |
626 | if (im_port == NULL) { | |
627 | rc = BFA_STATUS_ENOMEM; | |
628 | goto ext; | |
629 | } | |
630 | port->im_port = im_port; | |
631 | im_port->port = port; | |
632 | im_port->bfad = bfad; | |
633 | ||
634 | INIT_WORK(&im_port->port_delete_work, bfad_im_port_delete_handler); | |
635 | INIT_LIST_HEAD(&im_port->itnim_mapped_list); | |
636 | INIT_LIST_HEAD(&im_port->binding_list); | |
637 | ||
638 | ext: | |
639 | return rc; | |
640 | } | |
641 | ||
642 | void | |
643 | bfad_im_port_delete(struct bfad_s *bfad, struct bfad_port_s *port) | |
644 | { | |
645 | struct bfad_im_port_s *im_port = port->im_port; | |
646 | ||
a36c61f9 | 647 | queue_work(bfad->im->drv_workq, |
7725ccfd JH |
648 | &im_port->port_delete_work); |
649 | } | |
650 | ||
651 | void | |
652 | bfad_im_port_clean(struct bfad_im_port_s *im_port) | |
653 | { | |
654 | struct bfad_fcp_binding *bp, *bp_new; | |
655 | unsigned long flags; | |
656 | struct bfad_s *bfad = im_port->bfad; | |
657 | ||
658 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
659 | list_for_each_entry_safe(bp, bp_new, &im_port->binding_list, | |
660 | list_entry) { | |
661 | list_del(&bp->list_entry); | |
662 | kfree(bp); | |
663 | } | |
664 | ||
665 | /* the itnim_mapped_list must be empty at this time */ | |
d4b671c5 | 666 | WARN_ON(!list_empty(&im_port->itnim_mapped_list)); |
7725ccfd JH |
667 | |
668 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
669 | } | |
670 | ||
7826f304 KG |
671 | static void bfad_aen_im_notify_handler(struct work_struct *work) |
672 | { | |
673 | struct bfad_im_s *im = | |
674 | container_of(work, struct bfad_im_s, aen_im_notify_work); | |
675 | struct bfa_aen_entry_s *aen_entry; | |
676 | struct bfad_s *bfad = im->bfad; | |
677 | struct Scsi_Host *shost = bfad->pport.im_port->shost; | |
678 | void *event_data; | |
679 | unsigned long flags; | |
680 | ||
681 | while (!list_empty(&bfad->active_aen_q)) { | |
682 | spin_lock_irqsave(&bfad->bfad_aen_spinlock, flags); | |
683 | bfa_q_deq(&bfad->active_aen_q, &aen_entry); | |
684 | spin_unlock_irqrestore(&bfad->bfad_aen_spinlock, flags); | |
685 | event_data = (char *)aen_entry + sizeof(struct list_head); | |
686 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
687 | sizeof(struct bfa_aen_entry_s) - | |
688 | sizeof(struct list_head), | |
689 | (char *)event_data, BFAD_NL_VENDOR_ID); | |
690 | spin_lock_irqsave(&bfad->bfad_aen_spinlock, flags); | |
691 | list_add_tail(&aen_entry->qe, &bfad->free_aen_q); | |
692 | spin_unlock_irqrestore(&bfad->bfad_aen_spinlock, flags); | |
693 | } | |
694 | } | |
695 | ||
7725ccfd JH |
696 | bfa_status_t |
697 | bfad_im_probe(struct bfad_s *bfad) | |
698 | { | |
699 | struct bfad_im_s *im; | |
7725ccfd JH |
700 | |
701 | im = kzalloc(sizeof(struct bfad_im_s), GFP_KERNEL); | |
a5254dbb DC |
702 | if (im == NULL) |
703 | return BFA_STATUS_ENOMEM; | |
7725ccfd JH |
704 | |
705 | bfad->im = im; | |
706 | im->bfad = bfad; | |
707 | ||
f16a1750 | 708 | if (bfad_thread_workq(bfad) != BFA_STATUS_OK) { |
7725ccfd | 709 | kfree(im); |
a5254dbb | 710 | return BFA_STATUS_FAILED; |
7725ccfd JH |
711 | } |
712 | ||
7826f304 | 713 | INIT_WORK(&im->aen_im_notify_work, bfad_aen_im_notify_handler); |
a5254dbb | 714 | return BFA_STATUS_OK; |
7725ccfd JH |
715 | } |
716 | ||
717 | void | |
718 | bfad_im_probe_undo(struct bfad_s *bfad) | |
719 | { | |
720 | if (bfad->im) { | |
f16a1750 | 721 | bfad_destroy_workq(bfad->im); |
7725ccfd JH |
722 | kfree(bfad->im); |
723 | bfad->im = NULL; | |
724 | } | |
725 | } | |
726 | ||
7725ccfd | 727 | struct Scsi_Host * |
f16a1750 | 728 | bfad_scsi_host_alloc(struct bfad_im_port_s *im_port, struct bfad_s *bfad) |
7725ccfd JH |
729 | { |
730 | struct scsi_host_template *sht; | |
731 | ||
732 | if (im_port->port->pvb_type == BFAD_PORT_PHYS_BASE) | |
733 | sht = &bfad_im_scsi_host_template; | |
734 | else | |
735 | sht = &bfad_im_vport_template; | |
736 | ||
61e62e21 KG |
737 | if (max_xfer_size != BFAD_MAX_SECTORS >> 1) |
738 | sht->max_sectors = max_xfer_size << 1; | |
739 | ||
7725ccfd JH |
740 | sht->sg_tablesize = bfad->cfg_data.io_max_sge; |
741 | ||
48d83282 | 742 | return scsi_host_alloc(sht, sizeof(struct bfad_im_port_pointer)); |
7725ccfd JH |
743 | } |
744 | ||
745 | void | |
f16a1750 | 746 | bfad_scsi_host_free(struct bfad_s *bfad, struct bfad_im_port_s *im_port) |
7725ccfd | 747 | { |
b504293f JH |
748 | if (!(im_port->flags & BFAD_PORT_DELETE)) |
749 | flush_workqueue(bfad->im->drv_workq); | |
7725ccfd JH |
750 | bfad_im_scsi_host_free(im_port->bfad, im_port); |
751 | bfad_im_port_clean(im_port); | |
752 | kfree(im_port); | |
753 | } | |
754 | ||
755 | void | |
f16a1750 | 756 | bfad_destroy_workq(struct bfad_im_s *im) |
7725ccfd JH |
757 | { |
758 | if (im && im->drv_workq) { | |
a36c61f9 | 759 | flush_workqueue(im->drv_workq); |
7725ccfd JH |
760 | destroy_workqueue(im->drv_workq); |
761 | im->drv_workq = NULL; | |
762 | } | |
763 | } | |
764 | ||
765 | bfa_status_t | |
f16a1750 | 766 | bfad_thread_workq(struct bfad_s *bfad) |
7725ccfd JH |
767 | { |
768 | struct bfad_im_s *im = bfad->im; | |
769 | ||
770 | bfa_trc(bfad, 0); | |
a36c61f9 | 771 | snprintf(im->drv_workq_name, KOBJ_NAME_LEN, "bfad_wq_%d", |
7725ccfd JH |
772 | bfad->inst_no); |
773 | im->drv_workq = create_singlethread_workqueue(im->drv_workq_name); | |
774 | if (!im->drv_workq) | |
775 | return BFA_STATUS_FAILED; | |
776 | ||
777 | return BFA_STATUS_OK; | |
778 | } | |
779 | ||
5fbe25c7 | 780 | /* |
7725ccfd JH |
781 | * Scsi_Host template entry. |
782 | * | |
783 | * Description: | |
784 | * OS entry point to adjust the queue_depths on a per-device basis. | |
785 | * Called once per device during the bus scan. | |
786 | * Return non-zero if fails. | |
787 | */ | |
788 | static int | |
789 | bfad_im_slave_configure(struct scsi_device *sdev) | |
790 | { | |
db5ed4df | 791 | scsi_change_queue_depth(sdev, bfa_lun_queue_depth); |
7725ccfd JH |
792 | return 0; |
793 | } | |
794 | ||
795 | struct scsi_host_template bfad_im_scsi_host_template = { | |
796 | .module = THIS_MODULE, | |
797 | .name = BFAD_DRIVER_NAME, | |
798 | .info = bfad_im_info, | |
799 | .queuecommand = bfad_im_queuecommand, | |
b6a05c82 | 800 | .eh_timed_out = fc_eh_timed_out, |
7725ccfd JH |
801 | .eh_abort_handler = bfad_im_abort_handler, |
802 | .eh_device_reset_handler = bfad_im_reset_lun_handler, | |
1b7092f3 | 803 | .eh_target_reset_handler = bfad_im_reset_target_handler, |
7725ccfd JH |
804 | |
805 | .slave_alloc = bfad_im_slave_alloc, | |
806 | .slave_configure = bfad_im_slave_configure, | |
807 | .slave_destroy = bfad_im_slave_destroy, | |
808 | ||
809 | .this_id = -1, | |
810 | .sg_tablesize = BFAD_IO_MAX_SGE, | |
811 | .cmd_per_lun = 3, | |
7725ccfd | 812 | .shost_attrs = bfad_im_host_attrs, |
61e62e21 | 813 | .max_sectors = BFAD_MAX_SECTORS, |
b85daafe | 814 | .vendor_id = BFA_PCI_VENDOR_ID_BROCADE, |
7725ccfd JH |
815 | }; |
816 | ||
817 | struct scsi_host_template bfad_im_vport_template = { | |
818 | .module = THIS_MODULE, | |
819 | .name = BFAD_DRIVER_NAME, | |
820 | .info = bfad_im_info, | |
821 | .queuecommand = bfad_im_queuecommand, | |
b6a05c82 | 822 | .eh_timed_out = fc_eh_timed_out, |
7725ccfd JH |
823 | .eh_abort_handler = bfad_im_abort_handler, |
824 | .eh_device_reset_handler = bfad_im_reset_lun_handler, | |
1b7092f3 | 825 | .eh_target_reset_handler = bfad_im_reset_target_handler, |
7725ccfd JH |
826 | |
827 | .slave_alloc = bfad_im_slave_alloc, | |
828 | .slave_configure = bfad_im_slave_configure, | |
829 | .slave_destroy = bfad_im_slave_destroy, | |
830 | ||
831 | .this_id = -1, | |
832 | .sg_tablesize = BFAD_IO_MAX_SGE, | |
833 | .cmd_per_lun = 3, | |
7725ccfd | 834 | .shost_attrs = bfad_im_vport_attrs, |
61e62e21 | 835 | .max_sectors = BFAD_MAX_SECTORS, |
7725ccfd JH |
836 | }; |
837 | ||
7725ccfd JH |
838 | bfa_status_t |
839 | bfad_im_module_init(void) | |
840 | { | |
841 | bfad_im_scsi_transport_template = | |
842 | fc_attach_transport(&bfad_im_fc_function_template); | |
843 | if (!bfad_im_scsi_transport_template) | |
844 | return BFA_STATUS_ENOMEM; | |
845 | ||
b504293f JH |
846 | bfad_im_scsi_vport_transport_template = |
847 | fc_attach_transport(&bfad_im_vport_fc_function_template); | |
848 | if (!bfad_im_scsi_vport_transport_template) { | |
849 | fc_release_transport(bfad_im_scsi_transport_template); | |
850 | return BFA_STATUS_ENOMEM; | |
851 | } | |
852 | ||
7725ccfd JH |
853 | return BFA_STATUS_OK; |
854 | } | |
855 | ||
856 | void | |
857 | bfad_im_module_exit(void) | |
858 | { | |
859 | if (bfad_im_scsi_transport_template) | |
860 | fc_release_transport(bfad_im_scsi_transport_template); | |
a36c61f9 | 861 | |
b504293f JH |
862 | if (bfad_im_scsi_vport_transport_template) |
863 | fc_release_transport(bfad_im_scsi_vport_transport_template); | |
3ff448b5 AK |
864 | |
865 | idr_destroy(&bfad_im_port_index); | |
7725ccfd JH |
866 | } |
867 | ||
7725ccfd | 868 | void |
f16a1750 | 869 | bfad_ramp_up_qdepth(struct bfad_itnim_s *itnim, struct scsi_device *sdev) |
7725ccfd JH |
870 | { |
871 | struct scsi_device *tmp_sdev; | |
872 | ||
873 | if (((jiffies - itnim->last_ramp_up_time) > | |
874 | BFA_QUEUE_FULL_RAMP_UP_TIME * HZ) && | |
875 | ((jiffies - itnim->last_queue_full_time) > | |
876 | BFA_QUEUE_FULL_RAMP_UP_TIME * HZ)) { | |
877 | shost_for_each_device(tmp_sdev, sdev->host) { | |
878 | if (bfa_lun_queue_depth > tmp_sdev->queue_depth) { | |
879 | if (tmp_sdev->id != sdev->id) | |
880 | continue; | |
db5ed4df | 881 | scsi_change_queue_depth(tmp_sdev, |
609aa22f | 882 | tmp_sdev->queue_depth + 1); |
7725ccfd JH |
883 | |
884 | itnim->last_ramp_up_time = jiffies; | |
885 | } | |
886 | } | |
887 | } | |
888 | } | |
889 | ||
890 | void | |
f16a1750 | 891 | bfad_handle_qfull(struct bfad_itnim_s *itnim, struct scsi_device *sdev) |
7725ccfd JH |
892 | { |
893 | struct scsi_device *tmp_sdev; | |
894 | ||
895 | itnim->last_queue_full_time = jiffies; | |
896 | ||
897 | shost_for_each_device(tmp_sdev, sdev->host) { | |
898 | if (tmp_sdev->id != sdev->id) | |
899 | continue; | |
900 | scsi_track_queue_full(tmp_sdev, tmp_sdev->queue_depth - 1); | |
901 | } | |
902 | } | |
903 | ||
7725ccfd | 904 | struct bfad_itnim_s * |
f16a1750 | 905 | bfad_get_itnim(struct bfad_im_port_s *im_port, int id) |
7725ccfd JH |
906 | { |
907 | struct bfad_itnim_s *itnim = NULL; | |
908 | ||
909 | /* Search the mapped list for this target ID */ | |
910 | list_for_each_entry(itnim, &im_port->itnim_mapped_list, list_entry) { | |
911 | if (id == itnim->scsi_tgt_id) | |
912 | return itnim; | |
913 | } | |
914 | ||
915 | return NULL; | |
916 | } | |
917 | ||
5b7db7af KG |
918 | /* |
919 | * Function is invoked from the SCSI Host Template slave_alloc() entry point. | |
920 | * Has the logic to query the LUN Mask database to check if this LUN needs to | |
921 | * be made visible to the SCSI mid-layer or not. | |
922 | * | |
923 | * Returns BFA_STATUS_OK if this LUN needs to be added to the OS stack. | |
924 | * Returns -ENXIO to notify SCSI mid-layer to not add this LUN to the OS stack. | |
925 | */ | |
926 | static int | |
927 | bfad_im_check_if_make_lun_visible(struct scsi_device *sdev, | |
928 | struct fc_rport *rport) | |
929 | { | |
930 | struct bfad_itnim_data_s *itnim_data = | |
931 | (struct bfad_itnim_data_s *) rport->dd_data; | |
932 | struct bfa_s *bfa = itnim_data->itnim->bfa_itnim->bfa; | |
933 | struct bfa_rport_s *bfa_rport = itnim_data->itnim->bfa_itnim->rport; | |
934 | struct bfa_lun_mask_s *lun_list = bfa_get_lun_mask_list(bfa); | |
935 | int i = 0, ret = -ENXIO; | |
936 | ||
937 | for (i = 0; i < MAX_LUN_MASK_CFG; i++) { | |
938 | if (lun_list[i].state == BFA_IOIM_LUN_MASK_ACTIVE && | |
939 | scsilun_to_int(&lun_list[i].lun) == sdev->lun && | |
940 | lun_list[i].rp_tag == bfa_rport->rport_tag && | |
941 | lun_list[i].lp_tag == (u8)bfa_rport->rport_info.lp_tag) { | |
942 | ret = BFA_STATUS_OK; | |
943 | break; | |
944 | } | |
945 | } | |
946 | return ret; | |
947 | } | |
948 | ||
5fbe25c7 | 949 | /* |
7725ccfd JH |
950 | * Scsi_Host template entry slave_alloc |
951 | */ | |
952 | static int | |
953 | bfad_im_slave_alloc(struct scsi_device *sdev) | |
954 | { | |
955 | struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); | |
c6e23d83 JN |
956 | struct bfad_itnim_data_s *itnim_data; |
957 | struct bfa_s *bfa; | |
7725ccfd JH |
958 | |
959 | if (!rport || fc_remote_port_chkready(rport)) | |
960 | return -ENXIO; | |
961 | ||
c6e23d83 JN |
962 | itnim_data = (struct bfad_itnim_data_s *) rport->dd_data; |
963 | bfa = itnim_data->itnim->bfa_itnim->bfa; | |
964 | ||
5b7db7af KG |
965 | if (bfa_get_lun_mask_status(bfa) == BFA_LUNMASK_ENABLED) { |
966 | /* | |
967 | * We should not mask LUN 0 - since this will translate | |
968 | * to no LUN / TARGET for SCSI ml resulting no scan. | |
969 | */ | |
970 | if (sdev->lun == 0) { | |
971 | sdev->sdev_bflags |= BLIST_NOREPORTLUN | | |
972 | BLIST_SPARSELUN; | |
973 | goto done; | |
974 | } | |
975 | ||
976 | /* | |
977 | * Query LUN Mask configuration - to expose this LUN | |
978 | * to the SCSI mid-layer or to mask it. | |
979 | */ | |
980 | if (bfad_im_check_if_make_lun_visible(sdev, rport) != | |
981 | BFA_STATUS_OK) | |
982 | return -ENXIO; | |
983 | } | |
984 | done: | |
7725ccfd JH |
985 | sdev->hostdata = rport->dd_data; |
986 | ||
987 | return 0; | |
988 | } | |
989 | ||
6192bd7c | 990 | u32 |
a36c61f9 KG |
991 | bfad_im_supported_speeds(struct bfa_s *bfa) |
992 | { | |
e0a08a30 | 993 | struct bfa_ioc_attr_s *ioc_attr; |
a36c61f9 KG |
994 | u32 supported_speed = 0; |
995 | ||
e0a08a30 JH |
996 | ioc_attr = kzalloc(sizeof(struct bfa_ioc_attr_s), GFP_KERNEL); |
997 | if (!ioc_attr) | |
998 | return 0; | |
999 | ||
f7f73812 | 1000 | bfa_ioc_get_attr(&bfa->ioc, ioc_attr); |
8b070b4a KG |
1001 | if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_16GBPS) |
1002 | supported_speed |= FC_PORTSPEED_16GBIT | FC_PORTSPEED_8GBIT | | |
1003 | FC_PORTSPEED_4GBIT | FC_PORTSPEED_2GBIT; | |
1004 | else if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_8GBPS) { | |
e0a08a30 | 1005 | if (ioc_attr->adapter_attr.is_mezz) { |
a36c61f9 KG |
1006 | supported_speed |= FC_PORTSPEED_8GBIT | |
1007 | FC_PORTSPEED_4GBIT | | |
1008 | FC_PORTSPEED_2GBIT | FC_PORTSPEED_1GBIT; | |
1009 | } else { | |
1010 | supported_speed |= FC_PORTSPEED_8GBIT | | |
1011 | FC_PORTSPEED_4GBIT | | |
1012 | FC_PORTSPEED_2GBIT; | |
1013 | } | |
e0a08a30 | 1014 | } else if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_4GBPS) { |
a36c61f9 KG |
1015 | supported_speed |= FC_PORTSPEED_4GBIT | FC_PORTSPEED_2GBIT | |
1016 | FC_PORTSPEED_1GBIT; | |
e0a08a30 | 1017 | } else if (ioc_attr->adapter_attr.max_speed == BFA_PORT_SPEED_10GBPS) { |
a36c61f9 KG |
1018 | supported_speed |= FC_PORTSPEED_10GBIT; |
1019 | } | |
e0a08a30 | 1020 | kfree(ioc_attr); |
a36c61f9 KG |
1021 | return supported_speed; |
1022 | } | |
1023 | ||
7725ccfd | 1024 | void |
f16a1750 | 1025 | bfad_fc_host_init(struct bfad_im_port_s *im_port) |
7725ccfd JH |
1026 | { |
1027 | struct Scsi_Host *host = im_port->shost; | |
1028 | struct bfad_s *bfad = im_port->bfad; | |
1029 | struct bfad_port_s *port = im_port->port; | |
a36c61f9 | 1030 | char symname[BFA_SYMNAME_MAXLEN]; |
e0a08a30 | 1031 | struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(&bfad->bfa); |
7725ccfd JH |
1032 | |
1033 | fc_host_node_name(host) = | |
ba816ea8 | 1034 | cpu_to_be64((bfa_fcs_lport_get_nwwn(port->fcs_port))); |
7725ccfd | 1035 | fc_host_port_name(host) = |
ba816ea8 | 1036 | cpu_to_be64((bfa_fcs_lport_get_pwwn(port->fcs_port))); |
b504293f | 1037 | fc_host_max_npiv_vports(host) = bfa_lps_get_max_vport(&bfad->bfa); |
7725ccfd JH |
1038 | |
1039 | fc_host_supported_classes(host) = FC_COS_CLASS3; | |
1040 | ||
1041 | memset(fc_host_supported_fc4s(host), 0, | |
1042 | sizeof(fc_host_supported_fc4s(host))); | |
a36c61f9 | 1043 | if (supported_fc4s & BFA_LPORT_ROLE_FCP_IM) |
7725ccfd JH |
1044 | /* For FCP type 0x08 */ |
1045 | fc_host_supported_fc4s(host)[2] = 1; | |
7725ccfd JH |
1046 | /* For fibre channel services type 0x20 */ |
1047 | fc_host_supported_fc4s(host)[7] = 1; | |
1048 | ||
c6e23d83 | 1049 | strlcpy(symname, bfad->bfa_fcs.fabric.bport.port_cfg.sym_name.symname, |
a36c61f9 KG |
1050 | BFA_SYMNAME_MAXLEN); |
1051 | sprintf(fc_host_symbolic_name(host), "%s", symname); | |
7725ccfd | 1052 | |
a36c61f9 | 1053 | fc_host_supported_speeds(host) = bfad_im_supported_speeds(&bfad->bfa); |
5fbe25c7 | 1054 | fc_host_maxframe_size(host) = fcport->cfg.maxfrsize; |
7725ccfd JH |
1055 | } |
1056 | ||
1057 | static void | |
1058 | bfad_im_fc_rport_add(struct bfad_im_port_s *im_port, struct bfad_itnim_s *itnim) | |
1059 | { | |
1060 | struct fc_rport_identifiers rport_ids; | |
1061 | struct fc_rport *fc_rport; | |
1062 | struct bfad_itnim_data_s *itnim_data; | |
1063 | ||
1064 | rport_ids.node_name = | |
ba816ea8 | 1065 | cpu_to_be64(bfa_fcs_itnim_get_nwwn(&itnim->fcs_itnim)); |
7725ccfd | 1066 | rport_ids.port_name = |
ba816ea8 | 1067 | cpu_to_be64(bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim)); |
7725ccfd | 1068 | rport_ids.port_id = |
f16a1750 | 1069 | bfa_hton3b(bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim)); |
7725ccfd JH |
1070 | rport_ids.roles = FC_RPORT_ROLE_UNKNOWN; |
1071 | ||
1072 | itnim->fc_rport = fc_rport = | |
1073 | fc_remote_port_add(im_port->shost, 0, &rport_ids); | |
1074 | ||
1075 | if (!fc_rport) | |
1076 | return; | |
1077 | ||
1078 | fc_rport->maxframe_size = | |
1079 | bfa_fcs_itnim_get_maxfrsize(&itnim->fcs_itnim); | |
1080 | fc_rport->supported_classes = bfa_fcs_itnim_get_cos(&itnim->fcs_itnim); | |
1081 | ||
1082 | itnim_data = fc_rport->dd_data; | |
1083 | itnim_data->itnim = itnim; | |
1084 | ||
1085 | rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET; | |
1086 | ||
1087 | if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN) | |
1088 | fc_remote_port_rolechg(fc_rport, rport_ids.roles); | |
1089 | ||
1090 | if ((fc_rport->scsi_target_id != -1) | |
1091 | && (fc_rport->scsi_target_id < MAX_FCP_TARGET)) | |
1092 | itnim->scsi_tgt_id = fc_rport->scsi_target_id; | |
1093 | ||
5b7db7af KG |
1094 | itnim->channel = fc_rport->channel; |
1095 | ||
7725ccfd JH |
1096 | return; |
1097 | } | |
1098 | ||
5fbe25c7 | 1099 | /* |
7725ccfd JH |
1100 | * Work queue handler using FC transport service |
1101 | * Context: kernel | |
1102 | */ | |
1103 | static void | |
1104 | bfad_im_itnim_work_handler(struct work_struct *work) | |
1105 | { | |
1106 | struct bfad_itnim_s *itnim = container_of(work, struct bfad_itnim_s, | |
1107 | itnim_work); | |
1108 | struct bfad_im_s *im = itnim->im; | |
1109 | struct bfad_s *bfad = im->bfad; | |
1110 | struct bfad_im_port_s *im_port; | |
1111 | unsigned long flags; | |
1112 | struct fc_rport *fc_rport; | |
1113 | wwn_t wwpn; | |
1114 | u32 fcid; | |
1115 | char wwpn_str[32], fcid_str[16]; | |
1116 | ||
1117 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1118 | im_port = itnim->im_port; | |
1119 | bfa_trc(bfad, itnim->state); | |
1120 | switch (itnim->state) { | |
1121 | case ITNIM_STATE_ONLINE: | |
1122 | if (!itnim->fc_rport) { | |
1123 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1124 | bfad_im_fc_rport_add(im_port, itnim); | |
1125 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1126 | wwpn = bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim); | |
1127 | fcid = bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim); | |
1128 | wwn2str(wwpn_str, wwpn); | |
1129 | fcid2str(fcid_str, fcid); | |
1130 | list_add_tail(&itnim->list_entry, | |
1131 | &im_port->itnim_mapped_list); | |
88166242 | 1132 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
a36c61f9 KG |
1133 | "ITNIM ONLINE Target: %d:0:%d " |
1134 | "FCID: %s WWPN: %s\n", | |
7725ccfd JH |
1135 | im_port->shost->host_no, |
1136 | itnim->scsi_tgt_id, | |
1137 | fcid_str, wwpn_str); | |
1138 | } else { | |
1139 | printk(KERN_WARNING | |
1140 | "%s: itnim %llx is already in online state\n", | |
f8ceafde | 1141 | __func__, |
7725ccfd JH |
1142 | bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim)); |
1143 | } | |
1144 | ||
1145 | break; | |
1146 | case ITNIM_STATE_OFFLINE_PENDING: | |
1147 | itnim->state = ITNIM_STATE_OFFLINE; | |
1148 | if (itnim->fc_rport) { | |
1149 | fc_rport = itnim->fc_rport; | |
1150 | ((struct bfad_itnim_data_s *) | |
1151 | fc_rport->dd_data)->itnim = NULL; | |
1152 | itnim->fc_rport = NULL; | |
1153 | if (!(im_port->port->flags & BFAD_PORT_DELETE)) { | |
1154 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1155 | fc_rport->dev_loss_tmo = | |
1156 | bfa_fcpim_path_tov_get(&bfad->bfa) + 1; | |
1157 | fc_remote_port_delete(fc_rport); | |
1158 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1159 | } | |
1160 | wwpn = bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim); | |
1161 | fcid = bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim); | |
1162 | wwn2str(wwpn_str, wwpn); | |
1163 | fcid2str(fcid_str, fcid); | |
1164 | list_del(&itnim->list_entry); | |
88166242 | 1165 | BFA_LOG(KERN_INFO, bfad, bfa_log_level, |
a36c61f9 KG |
1166 | "ITNIM OFFLINE Target: %d:0:%d " |
1167 | "FCID: %s WWPN: %s\n", | |
7725ccfd JH |
1168 | im_port->shost->host_no, |
1169 | itnim->scsi_tgt_id, | |
1170 | fcid_str, wwpn_str); | |
1171 | } | |
1172 | break; | |
1173 | case ITNIM_STATE_FREE: | |
1174 | if (itnim->fc_rport) { | |
1175 | fc_rport = itnim->fc_rport; | |
1176 | ((struct bfad_itnim_data_s *) | |
1177 | fc_rport->dd_data)->itnim = NULL; | |
1178 | itnim->fc_rport = NULL; | |
1179 | if (!(im_port->port->flags & BFAD_PORT_DELETE)) { | |
1180 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1181 | fc_rport->dev_loss_tmo = | |
1182 | bfa_fcpim_path_tov_get(&bfad->bfa) + 1; | |
1183 | fc_remote_port_delete(fc_rport); | |
1184 | spin_lock_irqsave(&bfad->bfad_lock, flags); | |
1185 | } | |
1186 | list_del(&itnim->list_entry); | |
1187 | } | |
1188 | ||
1189 | kfree(itnim); | |
1190 | break; | |
1191 | default: | |
d4b671c5 | 1192 | WARN_ON(1); |
7725ccfd JH |
1193 | break; |
1194 | } | |
1195 | ||
1196 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1197 | } | |
1198 | ||
5fbe25c7 | 1199 | /* |
7725ccfd JH |
1200 | * Scsi_Host template entry, queue a SCSI command to the BFAD. |
1201 | */ | |
af049dfd | 1202 | static int bfad_im_queuecommand_lck(struct scsi_cmnd *cmnd) |
7725ccfd | 1203 | { |
af049dfd | 1204 | void (*done)(struct scsi_cmnd *) = scsi_done; |
7725ccfd JH |
1205 | struct bfad_im_port_s *im_port = |
1206 | (struct bfad_im_port_s *) cmnd->device->host->hostdata[0]; | |
1207 | struct bfad_s *bfad = im_port->bfad; | |
1208 | struct bfad_itnim_data_s *itnim_data = cmnd->device->hostdata; | |
1209 | struct bfad_itnim_s *itnim; | |
1210 | struct bfa_ioim_s *hal_io; | |
1211 | unsigned long flags; | |
1212 | int rc; | |
a36c61f9 | 1213 | int sg_cnt = 0; |
7725ccfd JH |
1214 | struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); |
1215 | ||
1216 | rc = fc_remote_port_chkready(rport); | |
1217 | if (rc) { | |
1218 | cmnd->result = rc; | |
1219 | done(cmnd); | |
1220 | return 0; | |
1221 | } | |
1222 | ||
881c1b3c KG |
1223 | if (bfad->bfad_flags & BFAD_EEH_BUSY) { |
1224 | if (bfad->bfad_flags & BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE) | |
1225 | cmnd->result = DID_NO_CONNECT << 16; | |
1226 | else | |
1227 | cmnd->result = DID_REQUEUE << 16; | |
1228 | done(cmnd); | |
1229 | return 0; | |
1230 | } | |
1231 | ||
7725ccfd | 1232 | sg_cnt = scsi_dma_map(cmnd); |
7725ccfd JH |
1233 | if (sg_cnt < 0) |
1234 | return SCSI_MLQUEUE_HOST_BUSY; | |
1235 | ||
7725ccfd JH |
1236 | spin_lock_irqsave(&bfad->bfad_lock, flags); |
1237 | if (!(bfad->bfad_flags & BFAD_HAL_START_DONE)) { | |
1238 | printk(KERN_WARNING | |
1239 | "bfad%d, queuecommand %p %x failed, BFA stopped\n", | |
1240 | bfad->inst_no, cmnd, cmnd->cmnd[0]); | |
55c9d371 | 1241 | cmnd->result = DID_NO_CONNECT << 16; |
7725ccfd JH |
1242 | goto out_fail_cmd; |
1243 | } | |
1244 | ||
a36c61f9 | 1245 | |
7725ccfd JH |
1246 | itnim = itnim_data->itnim; |
1247 | if (!itnim) { | |
55c9d371 | 1248 | cmnd->result = DID_IMM_RETRY << 16; |
7725ccfd JH |
1249 | goto out_fail_cmd; |
1250 | } | |
1251 | ||
1252 | hal_io = bfa_ioim_alloc(&bfad->bfa, (struct bfad_ioim_s *) cmnd, | |
1253 | itnim->bfa_itnim, sg_cnt); | |
1254 | if (!hal_io) { | |
1255 | printk(KERN_WARNING "hal_io failure\n"); | |
1256 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1257 | scsi_dma_unmap(cmnd); | |
1258 | return SCSI_MLQUEUE_HOST_BUSY; | |
1259 | } | |
1260 | ||
1261 | cmnd->host_scribble = (char *)hal_io; | |
7725ccfd JH |
1262 | bfa_ioim_start(hal_io); |
1263 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1264 | ||
1265 | return 0; | |
1266 | ||
1267 | out_fail_cmd: | |
1268 | spin_unlock_irqrestore(&bfad->bfad_lock, flags); | |
1269 | scsi_dma_unmap(cmnd); | |
1270 | if (done) | |
1271 | done(cmnd); | |
1272 | ||
1273 | return 0; | |
1274 | } | |
1275 | ||
f281233d JG |
1276 | static DEF_SCSI_QCMD(bfad_im_queuecommand) |
1277 | ||
7725ccfd | 1278 | void |
f16a1750 | 1279 | bfad_rport_online_wait(struct bfad_s *bfad) |
7725ccfd JH |
1280 | { |
1281 | int i; | |
1282 | int rport_delay = 10; | |
1283 | ||
1284 | for (i = 0; !(bfad->bfad_flags & BFAD_PORT_ONLINE) | |
a36c61f9 KG |
1285 | && i < bfa_linkup_delay; i++) { |
1286 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1287 | schedule_timeout(HZ); | |
1288 | } | |
7725ccfd JH |
1289 | |
1290 | if (bfad->bfad_flags & BFAD_PORT_ONLINE) { | |
1291 | rport_delay = rport_delay < bfa_linkup_delay ? | |
a36c61f9 | 1292 | rport_delay : bfa_linkup_delay; |
7725ccfd | 1293 | for (i = 0; !(bfad->bfad_flags & BFAD_RPORT_ONLINE) |
a36c61f9 KG |
1294 | && i < rport_delay; i++) { |
1295 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1296 | schedule_timeout(HZ); | |
1297 | } | |
7725ccfd | 1298 | |
a36c61f9 KG |
1299 | if (rport_delay > 0 && (bfad->bfad_flags & BFAD_RPORT_ONLINE)) { |
1300 | set_current_state(TASK_UNINTERRUPTIBLE); | |
1301 | schedule_timeout(rport_delay * HZ); | |
1302 | } | |
7725ccfd JH |
1303 | } |
1304 | } | |
1305 | ||
1306 | int | |
f16a1750 | 1307 | bfad_get_linkup_delay(struct bfad_s *bfad) |
7725ccfd | 1308 | { |
a36c61f9 KG |
1309 | u8 nwwns = 0; |
1310 | wwn_t wwns[BFA_PREBOOT_BOOTLUN_MAX]; | |
1311 | int linkup_delay; | |
7725ccfd JH |
1312 | |
1313 | /* | |
1314 | * Querying for the boot target port wwns | |
1315 | * -- read from boot information in flash. | |
a36c61f9 KG |
1316 | * If nwwns > 0 => boot over SAN and set linkup_delay = 30 |
1317 | * else => local boot machine set linkup_delay = 0 | |
7725ccfd JH |
1318 | */ |
1319 | ||
15b64a83 | 1320 | bfa_iocfc_get_bootwwns(&bfad->bfa, &nwwns, wwns); |
7725ccfd | 1321 | |
a36c61f9 KG |
1322 | if (nwwns > 0) |
1323 | /* If Boot over SAN set linkup_delay = 30sec */ | |
1324 | linkup_delay = 30; | |
1325 | else | |
1326 | /* If local boot; no linkup_delay */ | |
1327 | linkup_delay = 0; | |
7725ccfd | 1328 | |
a36c61f9 | 1329 | return linkup_delay; |
7725ccfd | 1330 | } |