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1 | /******************************************************************* | |
2 | * This file is part of the Emulex Linux Device Driver for * | |
3 | * Fibre Channel Host Bus Adapters. * | |
4 | * Copyright (C) 2004-2009 Emulex. All rights reserved. * | |
5 | * EMULEX and SLI are trademarks of Emulex. * | |
6 | * www.emulex.com * | |
7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * | |
8 | * * | |
9 | * This program is free software; you can redistribute it and/or * | |
10 | * modify it under the terms of version 2 of the GNU General * | |
11 | * Public License as published by the Free Software Foundation. * | |
12 | * This program is distributed in the hope that it will be useful. * | |
13 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
14 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
15 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
16 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
17 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
18 | * more details, a copy of which can be found in the file COPYING * | |
19 | * included with this package. * | |
20 | *******************************************************************/ | |
21 | ||
22 | #include <linux/blkdev.h> | |
23 | #include <linux/pci.h> | |
24 | #include <linux/interrupt.h> | |
25 | #include <linux/delay.h> | |
26 | ||
27 | #include <scsi/scsi.h> | |
28 | #include <scsi/scsi_cmnd.h> | |
29 | #include <scsi/scsi_device.h> | |
30 | #include <scsi/scsi_host.h> | |
31 | #include <scsi/scsi_transport_fc.h> | |
32 | #include <scsi/fc/fc_fs.h> | |
33 | ||
34 | #include "lpfc_hw4.h" | |
35 | #include "lpfc_hw.h" | |
36 | #include "lpfc_sli.h" | |
37 | #include "lpfc_sli4.h" | |
38 | #include "lpfc_nl.h" | |
39 | #include "lpfc_disc.h" | |
40 | #include "lpfc_scsi.h" | |
41 | #include "lpfc.h" | |
42 | #include "lpfc_crtn.h" | |
43 | #include "lpfc_logmsg.h" | |
44 | #include "lpfc_compat.h" | |
45 | #include "lpfc_debugfs.h" | |
46 | #include "lpfc_vport.h" | |
47 | ||
48 | /* There are only four IOCB completion types. */ | |
49 | typedef enum _lpfc_iocb_type { | |
50 | LPFC_UNKNOWN_IOCB, | |
51 | LPFC_UNSOL_IOCB, | |
52 | LPFC_SOL_IOCB, | |
53 | LPFC_ABORT_IOCB | |
54 | } lpfc_iocb_type; | |
55 | ||
56 | ||
57 | /* Provide function prototypes local to this module. */ | |
58 | static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *, | |
59 | uint32_t); | |
60 | static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *, | |
61 | uint8_t *, uint32_t *); | |
62 | ||
63 | static IOCB_t * | |
64 | lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq) | |
65 | { | |
66 | return &iocbq->iocb; | |
67 | } | |
68 | ||
69 | /** | |
70 | * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue | |
71 | * @q: The Work Queue to operate on. | |
72 | * @wqe: The work Queue Entry to put on the Work queue. | |
73 | * | |
74 | * This routine will copy the contents of @wqe to the next available entry on | |
75 | * the @q. This function will then ring the Work Queue Doorbell to signal the | |
76 | * HBA to start processing the Work Queue Entry. This function returns 0 if | |
77 | * successful. If no entries are available on @q then this function will return | |
78 | * -ENOMEM. | |
79 | * The caller is expected to hold the hbalock when calling this routine. | |
80 | **/ | |
81 | static uint32_t | |
82 | lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe) | |
83 | { | |
84 | union lpfc_wqe *temp_wqe = q->qe[q->host_index].wqe; | |
85 | struct lpfc_register doorbell; | |
86 | uint32_t host_index; | |
87 | ||
88 | /* If the host has not yet processed the next entry then we are done */ | |
89 | if (((q->host_index + 1) % q->entry_count) == q->hba_index) | |
90 | return -ENOMEM; | |
91 | /* set consumption flag every once in a while */ | |
92 | if (!((q->host_index + 1) % LPFC_RELEASE_NOTIFICATION_INTERVAL)) | |
93 | bf_set(lpfc_wqe_gen_wqec, &wqe->generic, 1); | |
94 | ||
95 | lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size); | |
96 | ||
97 | /* Update the host index before invoking device */ | |
98 | host_index = q->host_index; | |
99 | q->host_index = ((q->host_index + 1) % q->entry_count); | |
100 | ||
101 | /* Ring Doorbell */ | |
102 | doorbell.word0 = 0; | |
103 | bf_set(lpfc_wq_doorbell_num_posted, &doorbell, 1); | |
104 | bf_set(lpfc_wq_doorbell_index, &doorbell, host_index); | |
105 | bf_set(lpfc_wq_doorbell_id, &doorbell, q->queue_id); | |
106 | writel(doorbell.word0, q->phba->sli4_hba.WQDBregaddr); | |
107 | readl(q->phba->sli4_hba.WQDBregaddr); /* Flush */ | |
108 | ||
109 | return 0; | |
110 | } | |
111 | ||
112 | /** | |
113 | * lpfc_sli4_wq_release - Updates internal hba index for WQ | |
114 | * @q: The Work Queue to operate on. | |
115 | * @index: The index to advance the hba index to. | |
116 | * | |
117 | * This routine will update the HBA index of a queue to reflect consumption of | |
118 | * Work Queue Entries by the HBA. When the HBA indicates that it has consumed | |
119 | * an entry the host calls this function to update the queue's internal | |
120 | * pointers. This routine returns the number of entries that were consumed by | |
121 | * the HBA. | |
122 | **/ | |
123 | static uint32_t | |
124 | lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index) | |
125 | { | |
126 | uint32_t released = 0; | |
127 | ||
128 | if (q->hba_index == index) | |
129 | return 0; | |
130 | do { | |
131 | q->hba_index = ((q->hba_index + 1) % q->entry_count); | |
132 | released++; | |
133 | } while (q->hba_index != index); | |
134 | return released; | |
135 | } | |
136 | ||
137 | /** | |
138 | * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue | |
139 | * @q: The Mailbox Queue to operate on. | |
140 | * @wqe: The Mailbox Queue Entry to put on the Work queue. | |
141 | * | |
142 | * This routine will copy the contents of @mqe to the next available entry on | |
143 | * the @q. This function will then ring the Work Queue Doorbell to signal the | |
144 | * HBA to start processing the Work Queue Entry. This function returns 0 if | |
145 | * successful. If no entries are available on @q then this function will return | |
146 | * -ENOMEM. | |
147 | * The caller is expected to hold the hbalock when calling this routine. | |
148 | **/ | |
149 | static uint32_t | |
150 | lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe) | |
151 | { | |
152 | struct lpfc_mqe *temp_mqe = q->qe[q->host_index].mqe; | |
153 | struct lpfc_register doorbell; | |
154 | uint32_t host_index; | |
155 | ||
156 | /* If the host has not yet processed the next entry then we are done */ | |
157 | if (((q->host_index + 1) % q->entry_count) == q->hba_index) | |
158 | return -ENOMEM; | |
159 | lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size); | |
160 | /* Save off the mailbox pointer for completion */ | |
161 | q->phba->mbox = (MAILBOX_t *)temp_mqe; | |
162 | ||
163 | /* Update the host index before invoking device */ | |
164 | host_index = q->host_index; | |
165 | q->host_index = ((q->host_index + 1) % q->entry_count); | |
166 | ||
167 | /* Ring Doorbell */ | |
168 | doorbell.word0 = 0; | |
169 | bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1); | |
170 | bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id); | |
171 | writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr); | |
172 | readl(q->phba->sli4_hba.MQDBregaddr); /* Flush */ | |
173 | return 0; | |
174 | } | |
175 | ||
176 | /** | |
177 | * lpfc_sli4_mq_release - Updates internal hba index for MQ | |
178 | * @q: The Mailbox Queue to operate on. | |
179 | * | |
180 | * This routine will update the HBA index of a queue to reflect consumption of | |
181 | * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed | |
182 | * an entry the host calls this function to update the queue's internal | |
183 | * pointers. This routine returns the number of entries that were consumed by | |
184 | * the HBA. | |
185 | **/ | |
186 | static uint32_t | |
187 | lpfc_sli4_mq_release(struct lpfc_queue *q) | |
188 | { | |
189 | /* Clear the mailbox pointer for completion */ | |
190 | q->phba->mbox = NULL; | |
191 | q->hba_index = ((q->hba_index + 1) % q->entry_count); | |
192 | return 1; | |
193 | } | |
194 | ||
195 | /** | |
196 | * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ | |
197 | * @q: The Event Queue to get the first valid EQE from | |
198 | * | |
199 | * This routine will get the first valid Event Queue Entry from @q, update | |
200 | * the queue's internal hba index, and return the EQE. If no valid EQEs are in | |
201 | * the Queue (no more work to do), or the Queue is full of EQEs that have been | |
202 | * processed, but not popped back to the HBA then this routine will return NULL. | |
203 | **/ | |
204 | static struct lpfc_eqe * | |
205 | lpfc_sli4_eq_get(struct lpfc_queue *q) | |
206 | { | |
207 | struct lpfc_eqe *eqe = q->qe[q->hba_index].eqe; | |
208 | ||
209 | /* If the next EQE is not valid then we are done */ | |
210 | if (!bf_get(lpfc_eqe_valid, eqe)) | |
211 | return NULL; | |
212 | /* If the host has not yet processed the next entry then we are done */ | |
213 | if (((q->hba_index + 1) % q->entry_count) == q->host_index) | |
214 | return NULL; | |
215 | ||
216 | q->hba_index = ((q->hba_index + 1) % q->entry_count); | |
217 | return eqe; | |
218 | } | |
219 | ||
220 | /** | |
221 | * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ | |
222 | * @q: The Event Queue that the host has completed processing for. | |
223 | * @arm: Indicates whether the host wants to arms this CQ. | |
224 | * | |
225 | * This routine will mark all Event Queue Entries on @q, from the last | |
226 | * known completed entry to the last entry that was processed, as completed | |
227 | * by clearing the valid bit for each completion queue entry. Then it will | |
228 | * notify the HBA, by ringing the doorbell, that the EQEs have been processed. | |
229 | * The internal host index in the @q will be updated by this routine to indicate | |
230 | * that the host has finished processing the entries. The @arm parameter | |
231 | * indicates that the queue should be rearmed when ringing the doorbell. | |
232 | * | |
233 | * This function will return the number of EQEs that were popped. | |
234 | **/ | |
235 | uint32_t | |
236 | lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm) | |
237 | { | |
238 | uint32_t released = 0; | |
239 | struct lpfc_eqe *temp_eqe; | |
240 | struct lpfc_register doorbell; | |
241 | ||
242 | /* while there are valid entries */ | |
243 | while (q->hba_index != q->host_index) { | |
244 | temp_eqe = q->qe[q->host_index].eqe; | |
245 | bf_set(lpfc_eqe_valid, temp_eqe, 0); | |
246 | released++; | |
247 | q->host_index = ((q->host_index + 1) % q->entry_count); | |
248 | } | |
249 | if (unlikely(released == 0 && !arm)) | |
250 | return 0; | |
251 | ||
252 | /* ring doorbell for number popped */ | |
253 | doorbell.word0 = 0; | |
254 | if (arm) { | |
255 | bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1); | |
256 | bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1); | |
257 | } | |
258 | bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released); | |
259 | bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT); | |
260 | bf_set(lpfc_eqcq_doorbell_eqid, &doorbell, q->queue_id); | |
261 | writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr); | |
262 | return released; | |
263 | } | |
264 | ||
265 | /** | |
266 | * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ | |
267 | * @q: The Completion Queue to get the first valid CQE from | |
268 | * | |
269 | * This routine will get the first valid Completion Queue Entry from @q, update | |
270 | * the queue's internal hba index, and return the CQE. If no valid CQEs are in | |
271 | * the Queue (no more work to do), or the Queue is full of CQEs that have been | |
272 | * processed, but not popped back to the HBA then this routine will return NULL. | |
273 | **/ | |
274 | static struct lpfc_cqe * | |
275 | lpfc_sli4_cq_get(struct lpfc_queue *q) | |
276 | { | |
277 | struct lpfc_cqe *cqe; | |
278 | ||
279 | /* If the next CQE is not valid then we are done */ | |
280 | if (!bf_get(lpfc_cqe_valid, q->qe[q->hba_index].cqe)) | |
281 | return NULL; | |
282 | /* If the host has not yet processed the next entry then we are done */ | |
283 | if (((q->hba_index + 1) % q->entry_count) == q->host_index) | |
284 | return NULL; | |
285 | ||
286 | cqe = q->qe[q->hba_index].cqe; | |
287 | q->hba_index = ((q->hba_index + 1) % q->entry_count); | |
288 | return cqe; | |
289 | } | |
290 | ||
291 | /** | |
292 | * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ | |
293 | * @q: The Completion Queue that the host has completed processing for. | |
294 | * @arm: Indicates whether the host wants to arms this CQ. | |
295 | * | |
296 | * This routine will mark all Completion queue entries on @q, from the last | |
297 | * known completed entry to the last entry that was processed, as completed | |
298 | * by clearing the valid bit for each completion queue entry. Then it will | |
299 | * notify the HBA, by ringing the doorbell, that the CQEs have been processed. | |
300 | * The internal host index in the @q will be updated by this routine to indicate | |
301 | * that the host has finished processing the entries. The @arm parameter | |
302 | * indicates that the queue should be rearmed when ringing the doorbell. | |
303 | * | |
304 | * This function will return the number of CQEs that were released. | |
305 | **/ | |
306 | uint32_t | |
307 | lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm) | |
308 | { | |
309 | uint32_t released = 0; | |
310 | struct lpfc_cqe *temp_qe; | |
311 | struct lpfc_register doorbell; | |
312 | ||
313 | /* while there are valid entries */ | |
314 | while (q->hba_index != q->host_index) { | |
315 | temp_qe = q->qe[q->host_index].cqe; | |
316 | bf_set(lpfc_cqe_valid, temp_qe, 0); | |
317 | released++; | |
318 | q->host_index = ((q->host_index + 1) % q->entry_count); | |
319 | } | |
320 | if (unlikely(released == 0 && !arm)) | |
321 | return 0; | |
322 | ||
323 | /* ring doorbell for number popped */ | |
324 | doorbell.word0 = 0; | |
325 | if (arm) | |
326 | bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1); | |
327 | bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released); | |
328 | bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION); | |
329 | bf_set(lpfc_eqcq_doorbell_cqid, &doorbell, q->queue_id); | |
330 | writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr); | |
331 | return released; | |
332 | } | |
333 | ||
334 | /** | |
335 | * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue | |
336 | * @q: The Header Receive Queue to operate on. | |
337 | * @wqe: The Receive Queue Entry to put on the Receive queue. | |
338 | * | |
339 | * This routine will copy the contents of @wqe to the next available entry on | |
340 | * the @q. This function will then ring the Receive Queue Doorbell to signal the | |
341 | * HBA to start processing the Receive Queue Entry. This function returns the | |
342 | * index that the rqe was copied to if successful. If no entries are available | |
343 | * on @q then this function will return -ENOMEM. | |
344 | * The caller is expected to hold the hbalock when calling this routine. | |
345 | **/ | |
346 | static int | |
347 | lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq, | |
348 | struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe) | |
349 | { | |
350 | struct lpfc_rqe *temp_hrqe = hq->qe[hq->host_index].rqe; | |
351 | struct lpfc_rqe *temp_drqe = dq->qe[dq->host_index].rqe; | |
352 | struct lpfc_register doorbell; | |
353 | int put_index = hq->host_index; | |
354 | ||
355 | if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ) | |
356 | return -EINVAL; | |
357 | if (hq->host_index != dq->host_index) | |
358 | return -EINVAL; | |
359 | /* If the host has not yet processed the next entry then we are done */ | |
360 | if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index) | |
361 | return -EBUSY; | |
362 | lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size); | |
363 | lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size); | |
364 | ||
365 | /* Update the host index to point to the next slot */ | |
366 | hq->host_index = ((hq->host_index + 1) % hq->entry_count); | |
367 | dq->host_index = ((dq->host_index + 1) % dq->entry_count); | |
368 | ||
369 | /* Ring The Header Receive Queue Doorbell */ | |
370 | if (!(hq->host_index % LPFC_RQ_POST_BATCH)) { | |
371 | doorbell.word0 = 0; | |
372 | bf_set(lpfc_rq_doorbell_num_posted, &doorbell, | |
373 | LPFC_RQ_POST_BATCH); | |
374 | bf_set(lpfc_rq_doorbell_id, &doorbell, hq->queue_id); | |
375 | writel(doorbell.word0, hq->phba->sli4_hba.RQDBregaddr); | |
376 | } | |
377 | return put_index; | |
378 | } | |
379 | ||
380 | /** | |
381 | * lpfc_sli4_rq_release - Updates internal hba index for RQ | |
382 | * @q: The Header Receive Queue to operate on. | |
383 | * | |
384 | * This routine will update the HBA index of a queue to reflect consumption of | |
385 | * one Receive Queue Entry by the HBA. When the HBA indicates that it has | |
386 | * consumed an entry the host calls this function to update the queue's | |
387 | * internal pointers. This routine returns the number of entries that were | |
388 | * consumed by the HBA. | |
389 | **/ | |
390 | static uint32_t | |
391 | lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq) | |
392 | { | |
393 | if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ)) | |
394 | return 0; | |
395 | hq->hba_index = ((hq->hba_index + 1) % hq->entry_count); | |
396 | dq->hba_index = ((dq->hba_index + 1) % dq->entry_count); | |
397 | return 1; | |
398 | } | |
399 | ||
400 | /** | |
401 | * lpfc_cmd_iocb - Get next command iocb entry in the ring | |
402 | * @phba: Pointer to HBA context object. | |
403 | * @pring: Pointer to driver SLI ring object. | |
404 | * | |
405 | * This function returns pointer to next command iocb entry | |
406 | * in the command ring. The caller must hold hbalock to prevent | |
407 | * other threads consume the next command iocb. | |
408 | * SLI-2/SLI-3 provide different sized iocbs. | |
409 | **/ | |
410 | static inline IOCB_t * | |
411 | lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
412 | { | |
413 | return (IOCB_t *) (((char *) pring->cmdringaddr) + | |
414 | pring->cmdidx * phba->iocb_cmd_size); | |
415 | } | |
416 | ||
417 | /** | |
418 | * lpfc_resp_iocb - Get next response iocb entry in the ring | |
419 | * @phba: Pointer to HBA context object. | |
420 | * @pring: Pointer to driver SLI ring object. | |
421 | * | |
422 | * This function returns pointer to next response iocb entry | |
423 | * in the response ring. The caller must hold hbalock to make sure | |
424 | * that no other thread consume the next response iocb. | |
425 | * SLI-2/SLI-3 provide different sized iocbs. | |
426 | **/ | |
427 | static inline IOCB_t * | |
428 | lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
429 | { | |
430 | return (IOCB_t *) (((char *) pring->rspringaddr) + | |
431 | pring->rspidx * phba->iocb_rsp_size); | |
432 | } | |
433 | ||
434 | /** | |
435 | * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool | |
436 | * @phba: Pointer to HBA context object. | |
437 | * | |
438 | * This function is called with hbalock held. This function | |
439 | * allocates a new driver iocb object from the iocb pool. If the | |
440 | * allocation is successful, it returns pointer to the newly | |
441 | * allocated iocb object else it returns NULL. | |
442 | **/ | |
443 | static struct lpfc_iocbq * | |
444 | __lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
445 | { | |
446 | struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list; | |
447 | struct lpfc_iocbq * iocbq = NULL; | |
448 | ||
449 | list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list); | |
450 | return iocbq; | |
451 | } | |
452 | ||
453 | /** | |
454 | * __lpfc_clear_active_sglq - Remove the active sglq for this XRI. | |
455 | * @phba: Pointer to HBA context object. | |
456 | * @xritag: XRI value. | |
457 | * | |
458 | * This function clears the sglq pointer from the array of acive | |
459 | * sglq's. The xritag that is passed in is used to index into the | |
460 | * array. Before the xritag can be used it needs to be adjusted | |
461 | * by subtracting the xribase. | |
462 | * | |
463 | * Returns sglq ponter = success, NULL = Failure. | |
464 | **/ | |
465 | static struct lpfc_sglq * | |
466 | __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag) | |
467 | { | |
468 | uint16_t adj_xri; | |
469 | struct lpfc_sglq *sglq; | |
470 | adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base; | |
471 | if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri) | |
472 | return NULL; | |
473 | sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri]; | |
474 | phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = NULL; | |
475 | return sglq; | |
476 | } | |
477 | ||
478 | /** | |
479 | * __lpfc_get_active_sglq - Get the active sglq for this XRI. | |
480 | * @phba: Pointer to HBA context object. | |
481 | * @xritag: XRI value. | |
482 | * | |
483 | * This function returns the sglq pointer from the array of acive | |
484 | * sglq's. The xritag that is passed in is used to index into the | |
485 | * array. Before the xritag can be used it needs to be adjusted | |
486 | * by subtracting the xribase. | |
487 | * | |
488 | * Returns sglq ponter = success, NULL = Failure. | |
489 | **/ | |
490 | static struct lpfc_sglq * | |
491 | __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag) | |
492 | { | |
493 | uint16_t adj_xri; | |
494 | struct lpfc_sglq *sglq; | |
495 | adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base; | |
496 | if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri) | |
497 | return NULL; | |
498 | sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri]; | |
499 | return sglq; | |
500 | } | |
501 | ||
502 | /** | |
503 | * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool | |
504 | * @phba: Pointer to HBA context object. | |
505 | * | |
506 | * This function is called with hbalock held. This function | |
507 | * Gets a new driver sglq object from the sglq list. If the | |
508 | * list is not empty then it is successful, it returns pointer to the newly | |
509 | * allocated sglq object else it returns NULL. | |
510 | **/ | |
511 | static struct lpfc_sglq * | |
512 | __lpfc_sli_get_sglq(struct lpfc_hba *phba) | |
513 | { | |
514 | struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list; | |
515 | struct lpfc_sglq *sglq = NULL; | |
516 | uint16_t adj_xri; | |
517 | list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list); | |
518 | adj_xri = sglq->sli4_xritag - phba->sli4_hba.max_cfg_param.xri_base; | |
519 | phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = sglq; | |
520 | return sglq; | |
521 | } | |
522 | ||
523 | /** | |
524 | * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool | |
525 | * @phba: Pointer to HBA context object. | |
526 | * | |
527 | * This function is called with no lock held. This function | |
528 | * allocates a new driver iocb object from the iocb pool. If the | |
529 | * allocation is successful, it returns pointer to the newly | |
530 | * allocated iocb object else it returns NULL. | |
531 | **/ | |
532 | struct lpfc_iocbq * | |
533 | lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
534 | { | |
535 | struct lpfc_iocbq * iocbq = NULL; | |
536 | unsigned long iflags; | |
537 | ||
538 | spin_lock_irqsave(&phba->hbalock, iflags); | |
539 | iocbq = __lpfc_sli_get_iocbq(phba); | |
540 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
541 | return iocbq; | |
542 | } | |
543 | ||
544 | /** | |
545 | * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool | |
546 | * @phba: Pointer to HBA context object. | |
547 | * @iocbq: Pointer to driver iocb object. | |
548 | * | |
549 | * This function is called with hbalock held to release driver | |
550 | * iocb object to the iocb pool. The iotag in the iocb object | |
551 | * does not change for each use of the iocb object. This function | |
552 | * clears all other fields of the iocb object when it is freed. | |
553 | * The sqlq structure that holds the xritag and phys and virtual | |
554 | * mappings for the scatter gather list is retrieved from the | |
555 | * active array of sglq. The get of the sglq pointer also clears | |
556 | * the entry in the array. If the status of the IO indiactes that | |
557 | * this IO was aborted then the sglq entry it put on the | |
558 | * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the | |
559 | * IO has good status or fails for any other reason then the sglq | |
560 | * entry is added to the free list (lpfc_sgl_list). | |
561 | **/ | |
562 | static void | |
563 | __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
564 | { | |
565 | struct lpfc_sglq *sglq; | |
566 | size_t start_clean = offsetof(struct lpfc_iocbq, iocb); | |
567 | unsigned long iflag; | |
568 | ||
569 | if (iocbq->sli4_xritag == NO_XRI) | |
570 | sglq = NULL; | |
571 | else | |
572 | sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_xritag); | |
573 | if (sglq) { | |
574 | if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED | |
575 | || ((iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT) | |
576 | && (iocbq->iocb.un.ulpWord[4] | |
577 | == IOERR_SLI_ABORTED))) { | |
578 | spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock, | |
579 | iflag); | |
580 | list_add(&sglq->list, | |
581 | &phba->sli4_hba.lpfc_abts_els_sgl_list); | |
582 | spin_unlock_irqrestore( | |
583 | &phba->sli4_hba.abts_sgl_list_lock, iflag); | |
584 | } else | |
585 | list_add(&sglq->list, &phba->sli4_hba.lpfc_sgl_list); | |
586 | } | |
587 | ||
588 | ||
589 | /* | |
590 | * Clean all volatile data fields, preserve iotag and node struct. | |
591 | */ | |
592 | memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); | |
593 | iocbq->sli4_xritag = NO_XRI; | |
594 | list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); | |
595 | } | |
596 | ||
597 | /** | |
598 | * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool | |
599 | * @phba: Pointer to HBA context object. | |
600 | * @iocbq: Pointer to driver iocb object. | |
601 | * | |
602 | * This function is called with hbalock held to release driver | |
603 | * iocb object to the iocb pool. The iotag in the iocb object | |
604 | * does not change for each use of the iocb object. This function | |
605 | * clears all other fields of the iocb object when it is freed. | |
606 | **/ | |
607 | static void | |
608 | __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
609 | { | |
610 | size_t start_clean = offsetof(struct lpfc_iocbq, iocb); | |
611 | ||
612 | /* | |
613 | * Clean all volatile data fields, preserve iotag and node struct. | |
614 | */ | |
615 | memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); | |
616 | iocbq->sli4_xritag = NO_XRI; | |
617 | list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); | |
618 | } | |
619 | ||
620 | /** | |
621 | * __lpfc_sli_release_iocbq - Release iocb to the iocb pool | |
622 | * @phba: Pointer to HBA context object. | |
623 | * @iocbq: Pointer to driver iocb object. | |
624 | * | |
625 | * This function is called with hbalock held to release driver | |
626 | * iocb object to the iocb pool. The iotag in the iocb object | |
627 | * does not change for each use of the iocb object. This function | |
628 | * clears all other fields of the iocb object when it is freed. | |
629 | **/ | |
630 | static void | |
631 | __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
632 | { | |
633 | phba->__lpfc_sli_release_iocbq(phba, iocbq); | |
634 | } | |
635 | ||
636 | /** | |
637 | * lpfc_sli_release_iocbq - Release iocb to the iocb pool | |
638 | * @phba: Pointer to HBA context object. | |
639 | * @iocbq: Pointer to driver iocb object. | |
640 | * | |
641 | * This function is called with no lock held to release the iocb to | |
642 | * iocb pool. | |
643 | **/ | |
644 | void | |
645 | lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
646 | { | |
647 | unsigned long iflags; | |
648 | ||
649 | /* | |
650 | * Clean all volatile data fields, preserve iotag and node struct. | |
651 | */ | |
652 | spin_lock_irqsave(&phba->hbalock, iflags); | |
653 | __lpfc_sli_release_iocbq(phba, iocbq); | |
654 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
655 | } | |
656 | ||
657 | /** | |
658 | * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list. | |
659 | * @phba: Pointer to HBA context object. | |
660 | * @iocblist: List of IOCBs. | |
661 | * @ulpstatus: ULP status in IOCB command field. | |
662 | * @ulpWord4: ULP word-4 in IOCB command field. | |
663 | * | |
664 | * This function is called with a list of IOCBs to cancel. It cancels the IOCB | |
665 | * on the list by invoking the complete callback function associated with the | |
666 | * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond | |
667 | * fields. | |
668 | **/ | |
669 | void | |
670 | lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist, | |
671 | uint32_t ulpstatus, uint32_t ulpWord4) | |
672 | { | |
673 | struct lpfc_iocbq *piocb; | |
674 | ||
675 | while (!list_empty(iocblist)) { | |
676 | list_remove_head(iocblist, piocb, struct lpfc_iocbq, list); | |
677 | ||
678 | if (!piocb->iocb_cmpl) | |
679 | lpfc_sli_release_iocbq(phba, piocb); | |
680 | else { | |
681 | piocb->iocb.ulpStatus = ulpstatus; | |
682 | piocb->iocb.un.ulpWord[4] = ulpWord4; | |
683 | (piocb->iocb_cmpl) (phba, piocb, piocb); | |
684 | } | |
685 | } | |
686 | return; | |
687 | } | |
688 | ||
689 | /** | |
690 | * lpfc_sli_iocb_cmd_type - Get the iocb type | |
691 | * @iocb_cmnd: iocb command code. | |
692 | * | |
693 | * This function is called by ring event handler function to get the iocb type. | |
694 | * This function translates the iocb command to an iocb command type used to | |
695 | * decide the final disposition of each completed IOCB. | |
696 | * The function returns | |
697 | * LPFC_UNKNOWN_IOCB if it is an unsupported iocb | |
698 | * LPFC_SOL_IOCB if it is a solicited iocb completion | |
699 | * LPFC_ABORT_IOCB if it is an abort iocb | |
700 | * LPFC_UNSOL_IOCB if it is an unsolicited iocb | |
701 | * | |
702 | * The caller is not required to hold any lock. | |
703 | **/ | |
704 | static lpfc_iocb_type | |
705 | lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd) | |
706 | { | |
707 | lpfc_iocb_type type = LPFC_UNKNOWN_IOCB; | |
708 | ||
709 | if (iocb_cmnd > CMD_MAX_IOCB_CMD) | |
710 | return 0; | |
711 | ||
712 | switch (iocb_cmnd) { | |
713 | case CMD_XMIT_SEQUENCE_CR: | |
714 | case CMD_XMIT_SEQUENCE_CX: | |
715 | case CMD_XMIT_BCAST_CN: | |
716 | case CMD_XMIT_BCAST_CX: | |
717 | case CMD_ELS_REQUEST_CR: | |
718 | case CMD_ELS_REQUEST_CX: | |
719 | case CMD_CREATE_XRI_CR: | |
720 | case CMD_CREATE_XRI_CX: | |
721 | case CMD_GET_RPI_CN: | |
722 | case CMD_XMIT_ELS_RSP_CX: | |
723 | case CMD_GET_RPI_CR: | |
724 | case CMD_FCP_IWRITE_CR: | |
725 | case CMD_FCP_IWRITE_CX: | |
726 | case CMD_FCP_IREAD_CR: | |
727 | case CMD_FCP_IREAD_CX: | |
728 | case CMD_FCP_ICMND_CR: | |
729 | case CMD_FCP_ICMND_CX: | |
730 | case CMD_FCP_TSEND_CX: | |
731 | case CMD_FCP_TRSP_CX: | |
732 | case CMD_FCP_TRECEIVE_CX: | |
733 | case CMD_FCP_AUTO_TRSP_CX: | |
734 | case CMD_ADAPTER_MSG: | |
735 | case CMD_ADAPTER_DUMP: | |
736 | case CMD_XMIT_SEQUENCE64_CR: | |
737 | case CMD_XMIT_SEQUENCE64_CX: | |
738 | case CMD_XMIT_BCAST64_CN: | |
739 | case CMD_XMIT_BCAST64_CX: | |
740 | case CMD_ELS_REQUEST64_CR: | |
741 | case CMD_ELS_REQUEST64_CX: | |
742 | case CMD_FCP_IWRITE64_CR: | |
743 | case CMD_FCP_IWRITE64_CX: | |
744 | case CMD_FCP_IREAD64_CR: | |
745 | case CMD_FCP_IREAD64_CX: | |
746 | case CMD_FCP_ICMND64_CR: | |
747 | case CMD_FCP_ICMND64_CX: | |
748 | case CMD_FCP_TSEND64_CX: | |
749 | case CMD_FCP_TRSP64_CX: | |
750 | case CMD_FCP_TRECEIVE64_CX: | |
751 | case CMD_GEN_REQUEST64_CR: | |
752 | case CMD_GEN_REQUEST64_CX: | |
753 | case CMD_XMIT_ELS_RSP64_CX: | |
754 | case DSSCMD_IWRITE64_CR: | |
755 | case DSSCMD_IWRITE64_CX: | |
756 | case DSSCMD_IREAD64_CR: | |
757 | case DSSCMD_IREAD64_CX: | |
758 | case DSSCMD_INVALIDATE_DEK: | |
759 | case DSSCMD_SET_KEK: | |
760 | case DSSCMD_GET_KEK_ID: | |
761 | case DSSCMD_GEN_XFER: | |
762 | type = LPFC_SOL_IOCB; | |
763 | break; | |
764 | case CMD_ABORT_XRI_CN: | |
765 | case CMD_ABORT_XRI_CX: | |
766 | case CMD_CLOSE_XRI_CN: | |
767 | case CMD_CLOSE_XRI_CX: | |
768 | case CMD_XRI_ABORTED_CX: | |
769 | case CMD_ABORT_MXRI64_CN: | |
770 | type = LPFC_ABORT_IOCB; | |
771 | break; | |
772 | case CMD_RCV_SEQUENCE_CX: | |
773 | case CMD_RCV_ELS_REQ_CX: | |
774 | case CMD_RCV_SEQUENCE64_CX: | |
775 | case CMD_RCV_ELS_REQ64_CX: | |
776 | case CMD_ASYNC_STATUS: | |
777 | case CMD_IOCB_RCV_SEQ64_CX: | |
778 | case CMD_IOCB_RCV_ELS64_CX: | |
779 | case CMD_IOCB_RCV_CONT64_CX: | |
780 | case CMD_IOCB_RET_XRI64_CX: | |
781 | type = LPFC_UNSOL_IOCB; | |
782 | break; | |
783 | case CMD_IOCB_XMIT_MSEQ64_CR: | |
784 | case CMD_IOCB_XMIT_MSEQ64_CX: | |
785 | case CMD_IOCB_RCV_SEQ_LIST64_CX: | |
786 | case CMD_IOCB_RCV_ELS_LIST64_CX: | |
787 | case CMD_IOCB_CLOSE_EXTENDED_CN: | |
788 | case CMD_IOCB_ABORT_EXTENDED_CN: | |
789 | case CMD_IOCB_RET_HBQE64_CN: | |
790 | case CMD_IOCB_FCP_IBIDIR64_CR: | |
791 | case CMD_IOCB_FCP_IBIDIR64_CX: | |
792 | case CMD_IOCB_FCP_ITASKMGT64_CX: | |
793 | case CMD_IOCB_LOGENTRY_CN: | |
794 | case CMD_IOCB_LOGENTRY_ASYNC_CN: | |
795 | printk("%s - Unhandled SLI-3 Command x%x\n", | |
796 | __func__, iocb_cmnd); | |
797 | type = LPFC_UNKNOWN_IOCB; | |
798 | break; | |
799 | default: | |
800 | type = LPFC_UNKNOWN_IOCB; | |
801 | break; | |
802 | } | |
803 | ||
804 | return type; | |
805 | } | |
806 | ||
807 | /** | |
808 | * lpfc_sli_ring_map - Issue config_ring mbox for all rings | |
809 | * @phba: Pointer to HBA context object. | |
810 | * | |
811 | * This function is called from SLI initialization code | |
812 | * to configure every ring of the HBA's SLI interface. The | |
813 | * caller is not required to hold any lock. This function issues | |
814 | * a config_ring mailbox command for each ring. | |
815 | * This function returns zero if successful else returns a negative | |
816 | * error code. | |
817 | **/ | |
818 | static int | |
819 | lpfc_sli_ring_map(struct lpfc_hba *phba) | |
820 | { | |
821 | struct lpfc_sli *psli = &phba->sli; | |
822 | LPFC_MBOXQ_t *pmb; | |
823 | MAILBOX_t *pmbox; | |
824 | int i, rc, ret = 0; | |
825 | ||
826 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
827 | if (!pmb) | |
828 | return -ENOMEM; | |
829 | pmbox = &pmb->u.mb; | |
830 | phba->link_state = LPFC_INIT_MBX_CMDS; | |
831 | for (i = 0; i < psli->num_rings; i++) { | |
832 | lpfc_config_ring(phba, i, pmb); | |
833 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
834 | if (rc != MBX_SUCCESS) { | |
835 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
836 | "0446 Adapter failed to init (%d), " | |
837 | "mbxCmd x%x CFG_RING, mbxStatus x%x, " | |
838 | "ring %d\n", | |
839 | rc, pmbox->mbxCommand, | |
840 | pmbox->mbxStatus, i); | |
841 | phba->link_state = LPFC_HBA_ERROR; | |
842 | ret = -ENXIO; | |
843 | break; | |
844 | } | |
845 | } | |
846 | mempool_free(pmb, phba->mbox_mem_pool); | |
847 | return ret; | |
848 | } | |
849 | ||
850 | /** | |
851 | * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq | |
852 | * @phba: Pointer to HBA context object. | |
853 | * @pring: Pointer to driver SLI ring object. | |
854 | * @piocb: Pointer to the driver iocb object. | |
855 | * | |
856 | * This function is called with hbalock held. The function adds the | |
857 | * new iocb to txcmplq of the given ring. This function always returns | |
858 | * 0. If this function is called for ELS ring, this function checks if | |
859 | * there is a vport associated with the ELS command. This function also | |
860 | * starts els_tmofunc timer if this is an ELS command. | |
861 | **/ | |
862 | static int | |
863 | lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
864 | struct lpfc_iocbq *piocb) | |
865 | { | |
866 | list_add_tail(&piocb->list, &pring->txcmplq); | |
867 | pring->txcmplq_cnt++; | |
868 | if ((unlikely(pring->ringno == LPFC_ELS_RING)) && | |
869 | (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && | |
870 | (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { | |
871 | if (!piocb->vport) | |
872 | BUG(); | |
873 | else | |
874 | mod_timer(&piocb->vport->els_tmofunc, | |
875 | jiffies + HZ * (phba->fc_ratov << 1)); | |
876 | } | |
877 | ||
878 | ||
879 | return 0; | |
880 | } | |
881 | ||
882 | /** | |
883 | * lpfc_sli_ringtx_get - Get first element of the txq | |
884 | * @phba: Pointer to HBA context object. | |
885 | * @pring: Pointer to driver SLI ring object. | |
886 | * | |
887 | * This function is called with hbalock held to get next | |
888 | * iocb in txq of the given ring. If there is any iocb in | |
889 | * the txq, the function returns first iocb in the list after | |
890 | * removing the iocb from the list, else it returns NULL. | |
891 | **/ | |
892 | static struct lpfc_iocbq * | |
893 | lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
894 | { | |
895 | struct lpfc_iocbq *cmd_iocb; | |
896 | ||
897 | list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list); | |
898 | if (cmd_iocb != NULL) | |
899 | pring->txq_cnt--; | |
900 | return cmd_iocb; | |
901 | } | |
902 | ||
903 | /** | |
904 | * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring | |
905 | * @phba: Pointer to HBA context object. | |
906 | * @pring: Pointer to driver SLI ring object. | |
907 | * | |
908 | * This function is called with hbalock held and the caller must post the | |
909 | * iocb without releasing the lock. If the caller releases the lock, | |
910 | * iocb slot returned by the function is not guaranteed to be available. | |
911 | * The function returns pointer to the next available iocb slot if there | |
912 | * is available slot in the ring, else it returns NULL. | |
913 | * If the get index of the ring is ahead of the put index, the function | |
914 | * will post an error attention event to the worker thread to take the | |
915 | * HBA to offline state. | |
916 | **/ | |
917 | static IOCB_t * | |
918 | lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
919 | { | |
920 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; | |
921 | uint32_t max_cmd_idx = pring->numCiocb; | |
922 | if ((pring->next_cmdidx == pring->cmdidx) && | |
923 | (++pring->next_cmdidx >= max_cmd_idx)) | |
924 | pring->next_cmdidx = 0; | |
925 | ||
926 | if (unlikely(pring->local_getidx == pring->next_cmdidx)) { | |
927 | ||
928 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
929 | ||
930 | if (unlikely(pring->local_getidx >= max_cmd_idx)) { | |
931 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
932 | "0315 Ring %d issue: portCmdGet %d " | |
933 | "is bigger than cmd ring %d\n", | |
934 | pring->ringno, | |
935 | pring->local_getidx, max_cmd_idx); | |
936 | ||
937 | phba->link_state = LPFC_HBA_ERROR; | |
938 | /* | |
939 | * All error attention handlers are posted to | |
940 | * worker thread | |
941 | */ | |
942 | phba->work_ha |= HA_ERATT; | |
943 | phba->work_hs = HS_FFER3; | |
944 | ||
945 | lpfc_worker_wake_up(phba); | |
946 | ||
947 | return NULL; | |
948 | } | |
949 | ||
950 | if (pring->local_getidx == pring->next_cmdidx) | |
951 | return NULL; | |
952 | } | |
953 | ||
954 | return lpfc_cmd_iocb(phba, pring); | |
955 | } | |
956 | ||
957 | /** | |
958 | * lpfc_sli_next_iotag - Get an iotag for the iocb | |
959 | * @phba: Pointer to HBA context object. | |
960 | * @iocbq: Pointer to driver iocb object. | |
961 | * | |
962 | * This function gets an iotag for the iocb. If there is no unused iotag and | |
963 | * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup | |
964 | * array and assigns a new iotag. | |
965 | * The function returns the allocated iotag if successful, else returns zero. | |
966 | * Zero is not a valid iotag. | |
967 | * The caller is not required to hold any lock. | |
968 | **/ | |
969 | uint16_t | |
970 | lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
971 | { | |
972 | struct lpfc_iocbq **new_arr; | |
973 | struct lpfc_iocbq **old_arr; | |
974 | size_t new_len; | |
975 | struct lpfc_sli *psli = &phba->sli; | |
976 | uint16_t iotag; | |
977 | ||
978 | spin_lock_irq(&phba->hbalock); | |
979 | iotag = psli->last_iotag; | |
980 | if(++iotag < psli->iocbq_lookup_len) { | |
981 | psli->last_iotag = iotag; | |
982 | psli->iocbq_lookup[iotag] = iocbq; | |
983 | spin_unlock_irq(&phba->hbalock); | |
984 | iocbq->iotag = iotag; | |
985 | return iotag; | |
986 | } else if (psli->iocbq_lookup_len < (0xffff | |
987 | - LPFC_IOCBQ_LOOKUP_INCREMENT)) { | |
988 | new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT; | |
989 | spin_unlock_irq(&phba->hbalock); | |
990 | new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *), | |
991 | GFP_KERNEL); | |
992 | if (new_arr) { | |
993 | spin_lock_irq(&phba->hbalock); | |
994 | old_arr = psli->iocbq_lookup; | |
995 | if (new_len <= psli->iocbq_lookup_len) { | |
996 | /* highly unprobable case */ | |
997 | kfree(new_arr); | |
998 | iotag = psli->last_iotag; | |
999 | if(++iotag < psli->iocbq_lookup_len) { | |
1000 | psli->last_iotag = iotag; | |
1001 | psli->iocbq_lookup[iotag] = iocbq; | |
1002 | spin_unlock_irq(&phba->hbalock); | |
1003 | iocbq->iotag = iotag; | |
1004 | return iotag; | |
1005 | } | |
1006 | spin_unlock_irq(&phba->hbalock); | |
1007 | return 0; | |
1008 | } | |
1009 | if (psli->iocbq_lookup) | |
1010 | memcpy(new_arr, old_arr, | |
1011 | ((psli->last_iotag + 1) * | |
1012 | sizeof (struct lpfc_iocbq *))); | |
1013 | psli->iocbq_lookup = new_arr; | |
1014 | psli->iocbq_lookup_len = new_len; | |
1015 | psli->last_iotag = iotag; | |
1016 | psli->iocbq_lookup[iotag] = iocbq; | |
1017 | spin_unlock_irq(&phba->hbalock); | |
1018 | iocbq->iotag = iotag; | |
1019 | kfree(old_arr); | |
1020 | return iotag; | |
1021 | } | |
1022 | } else | |
1023 | spin_unlock_irq(&phba->hbalock); | |
1024 | ||
1025 | lpfc_printf_log(phba, KERN_ERR,LOG_SLI, | |
1026 | "0318 Failed to allocate IOTAG.last IOTAG is %d\n", | |
1027 | psli->last_iotag); | |
1028 | ||
1029 | return 0; | |
1030 | } | |
1031 | ||
1032 | /** | |
1033 | * lpfc_sli_submit_iocb - Submit an iocb to the firmware | |
1034 | * @phba: Pointer to HBA context object. | |
1035 | * @pring: Pointer to driver SLI ring object. | |
1036 | * @iocb: Pointer to iocb slot in the ring. | |
1037 | * @nextiocb: Pointer to driver iocb object which need to be | |
1038 | * posted to firmware. | |
1039 | * | |
1040 | * This function is called with hbalock held to post a new iocb to | |
1041 | * the firmware. This function copies the new iocb to ring iocb slot and | |
1042 | * updates the ring pointers. It adds the new iocb to txcmplq if there is | |
1043 | * a completion call back for this iocb else the function will free the | |
1044 | * iocb object. | |
1045 | **/ | |
1046 | static void | |
1047 | lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
1048 | IOCB_t *iocb, struct lpfc_iocbq *nextiocb) | |
1049 | { | |
1050 | /* | |
1051 | * Set up an iotag | |
1052 | */ | |
1053 | nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0; | |
1054 | ||
1055 | ||
1056 | if (pring->ringno == LPFC_ELS_RING) { | |
1057 | lpfc_debugfs_slow_ring_trc(phba, | |
1058 | "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x", | |
1059 | *(((uint32_t *) &nextiocb->iocb) + 4), | |
1060 | *(((uint32_t *) &nextiocb->iocb) + 6), | |
1061 | *(((uint32_t *) &nextiocb->iocb) + 7)); | |
1062 | } | |
1063 | ||
1064 | /* | |
1065 | * Issue iocb command to adapter | |
1066 | */ | |
1067 | lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size); | |
1068 | wmb(); | |
1069 | pring->stats.iocb_cmd++; | |
1070 | ||
1071 | /* | |
1072 | * If there is no completion routine to call, we can release the | |
1073 | * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF, | |
1074 | * that have no rsp ring completion, iocb_cmpl MUST be NULL. | |
1075 | */ | |
1076 | if (nextiocb->iocb_cmpl) | |
1077 | lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb); | |
1078 | else | |
1079 | __lpfc_sli_release_iocbq(phba, nextiocb); | |
1080 | ||
1081 | /* | |
1082 | * Let the HBA know what IOCB slot will be the next one the | |
1083 | * driver will put a command into. | |
1084 | */ | |
1085 | pring->cmdidx = pring->next_cmdidx; | |
1086 | writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx); | |
1087 | } | |
1088 | ||
1089 | /** | |
1090 | * lpfc_sli_update_full_ring - Update the chip attention register | |
1091 | * @phba: Pointer to HBA context object. | |
1092 | * @pring: Pointer to driver SLI ring object. | |
1093 | * | |
1094 | * The caller is not required to hold any lock for calling this function. | |
1095 | * This function updates the chip attention bits for the ring to inform firmware | |
1096 | * that there are pending work to be done for this ring and requests an | |
1097 | * interrupt when there is space available in the ring. This function is | |
1098 | * called when the driver is unable to post more iocbs to the ring due | |
1099 | * to unavailability of space in the ring. | |
1100 | **/ | |
1101 | static void | |
1102 | lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
1103 | { | |
1104 | int ringno = pring->ringno; | |
1105 | ||
1106 | pring->flag |= LPFC_CALL_RING_AVAILABLE; | |
1107 | ||
1108 | wmb(); | |
1109 | ||
1110 | /* | |
1111 | * Set ring 'ringno' to SET R0CE_REQ in Chip Att register. | |
1112 | * The HBA will tell us when an IOCB entry is available. | |
1113 | */ | |
1114 | writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr); | |
1115 | readl(phba->CAregaddr); /* flush */ | |
1116 | ||
1117 | pring->stats.iocb_cmd_full++; | |
1118 | } | |
1119 | ||
1120 | /** | |
1121 | * lpfc_sli_update_ring - Update chip attention register | |
1122 | * @phba: Pointer to HBA context object. | |
1123 | * @pring: Pointer to driver SLI ring object. | |
1124 | * | |
1125 | * This function updates the chip attention register bit for the | |
1126 | * given ring to inform HBA that there is more work to be done | |
1127 | * in this ring. The caller is not required to hold any lock. | |
1128 | **/ | |
1129 | static void | |
1130 | lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
1131 | { | |
1132 | int ringno = pring->ringno; | |
1133 | ||
1134 | /* | |
1135 | * Tell the HBA that there is work to do in this ring. | |
1136 | */ | |
1137 | if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) { | |
1138 | wmb(); | |
1139 | writel(CA_R0ATT << (ringno * 4), phba->CAregaddr); | |
1140 | readl(phba->CAregaddr); /* flush */ | |
1141 | } | |
1142 | } | |
1143 | ||
1144 | /** | |
1145 | * lpfc_sli_resume_iocb - Process iocbs in the txq | |
1146 | * @phba: Pointer to HBA context object. | |
1147 | * @pring: Pointer to driver SLI ring object. | |
1148 | * | |
1149 | * This function is called with hbalock held to post pending iocbs | |
1150 | * in the txq to the firmware. This function is called when driver | |
1151 | * detects space available in the ring. | |
1152 | **/ | |
1153 | static void | |
1154 | lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
1155 | { | |
1156 | IOCB_t *iocb; | |
1157 | struct lpfc_iocbq *nextiocb; | |
1158 | ||
1159 | /* | |
1160 | * Check to see if: | |
1161 | * (a) there is anything on the txq to send | |
1162 | * (b) link is up | |
1163 | * (c) link attention events can be processed (fcp ring only) | |
1164 | * (d) IOCB processing is not blocked by the outstanding mbox command. | |
1165 | */ | |
1166 | if (pring->txq_cnt && | |
1167 | lpfc_is_link_up(phba) && | |
1168 | (pring->ringno != phba->sli.fcp_ring || | |
1169 | phba->sli.sli_flag & LPFC_PROCESS_LA)) { | |
1170 | ||
1171 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && | |
1172 | (nextiocb = lpfc_sli_ringtx_get(phba, pring))) | |
1173 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
1174 | ||
1175 | if (iocb) | |
1176 | lpfc_sli_update_ring(phba, pring); | |
1177 | else | |
1178 | lpfc_sli_update_full_ring(phba, pring); | |
1179 | } | |
1180 | ||
1181 | return; | |
1182 | } | |
1183 | ||
1184 | /** | |
1185 | * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ | |
1186 | * @phba: Pointer to HBA context object. | |
1187 | * @hbqno: HBQ number. | |
1188 | * | |
1189 | * This function is called with hbalock held to get the next | |
1190 | * available slot for the given HBQ. If there is free slot | |
1191 | * available for the HBQ it will return pointer to the next available | |
1192 | * HBQ entry else it will return NULL. | |
1193 | **/ | |
1194 | static struct lpfc_hbq_entry * | |
1195 | lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno) | |
1196 | { | |
1197 | struct hbq_s *hbqp = &phba->hbqs[hbqno]; | |
1198 | ||
1199 | if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx && | |
1200 | ++hbqp->next_hbqPutIdx >= hbqp->entry_count) | |
1201 | hbqp->next_hbqPutIdx = 0; | |
1202 | ||
1203 | if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) { | |
1204 | uint32_t raw_index = phba->hbq_get[hbqno]; | |
1205 | uint32_t getidx = le32_to_cpu(raw_index); | |
1206 | ||
1207 | hbqp->local_hbqGetIdx = getidx; | |
1208 | ||
1209 | if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) { | |
1210 | lpfc_printf_log(phba, KERN_ERR, | |
1211 | LOG_SLI | LOG_VPORT, | |
1212 | "1802 HBQ %d: local_hbqGetIdx " | |
1213 | "%u is > than hbqp->entry_count %u\n", | |
1214 | hbqno, hbqp->local_hbqGetIdx, | |
1215 | hbqp->entry_count); | |
1216 | ||
1217 | phba->link_state = LPFC_HBA_ERROR; | |
1218 | return NULL; | |
1219 | } | |
1220 | ||
1221 | if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx) | |
1222 | return NULL; | |
1223 | } | |
1224 | ||
1225 | return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt + | |
1226 | hbqp->hbqPutIdx; | |
1227 | } | |
1228 | ||
1229 | /** | |
1230 | * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers | |
1231 | * @phba: Pointer to HBA context object. | |
1232 | * | |
1233 | * This function is called with no lock held to free all the | |
1234 | * hbq buffers while uninitializing the SLI interface. It also | |
1235 | * frees the HBQ buffers returned by the firmware but not yet | |
1236 | * processed by the upper layers. | |
1237 | **/ | |
1238 | void | |
1239 | lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba) | |
1240 | { | |
1241 | struct lpfc_dmabuf *dmabuf, *next_dmabuf; | |
1242 | struct hbq_dmabuf *hbq_buf; | |
1243 | unsigned long flags; | |
1244 | int i, hbq_count; | |
1245 | uint32_t hbqno; | |
1246 | ||
1247 | hbq_count = lpfc_sli_hbq_count(); | |
1248 | /* Return all memory used by all HBQs */ | |
1249 | spin_lock_irqsave(&phba->hbalock, flags); | |
1250 | for (i = 0; i < hbq_count; ++i) { | |
1251 | list_for_each_entry_safe(dmabuf, next_dmabuf, | |
1252 | &phba->hbqs[i].hbq_buffer_list, list) { | |
1253 | hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); | |
1254 | list_del(&hbq_buf->dbuf.list); | |
1255 | (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf); | |
1256 | } | |
1257 | phba->hbqs[i].buffer_count = 0; | |
1258 | } | |
1259 | /* Return all HBQ buffer that are in-fly */ | |
1260 | list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list, | |
1261 | list) { | |
1262 | hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); | |
1263 | list_del(&hbq_buf->dbuf.list); | |
1264 | if (hbq_buf->tag == -1) { | |
1265 | (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) | |
1266 | (phba, hbq_buf); | |
1267 | } else { | |
1268 | hbqno = hbq_buf->tag >> 16; | |
1269 | if (hbqno >= LPFC_MAX_HBQS) | |
1270 | (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) | |
1271 | (phba, hbq_buf); | |
1272 | else | |
1273 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, | |
1274 | hbq_buf); | |
1275 | } | |
1276 | } | |
1277 | ||
1278 | /* Mark the HBQs not in use */ | |
1279 | phba->hbq_in_use = 0; | |
1280 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
1281 | } | |
1282 | ||
1283 | /** | |
1284 | * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware | |
1285 | * @phba: Pointer to HBA context object. | |
1286 | * @hbqno: HBQ number. | |
1287 | * @hbq_buf: Pointer to HBQ buffer. | |
1288 | * | |
1289 | * This function is called with the hbalock held to post a | |
1290 | * hbq buffer to the firmware. If the function finds an empty | |
1291 | * slot in the HBQ, it will post the buffer. The function will return | |
1292 | * pointer to the hbq entry if it successfully post the buffer | |
1293 | * else it will return NULL. | |
1294 | **/ | |
1295 | static int | |
1296 | lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno, | |
1297 | struct hbq_dmabuf *hbq_buf) | |
1298 | { | |
1299 | return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf); | |
1300 | } | |
1301 | ||
1302 | /** | |
1303 | * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware | |
1304 | * @phba: Pointer to HBA context object. | |
1305 | * @hbqno: HBQ number. | |
1306 | * @hbq_buf: Pointer to HBQ buffer. | |
1307 | * | |
1308 | * This function is called with the hbalock held to post a hbq buffer to the | |
1309 | * firmware. If the function finds an empty slot in the HBQ, it will post the | |
1310 | * buffer and place it on the hbq_buffer_list. The function will return zero if | |
1311 | * it successfully post the buffer else it will return an error. | |
1312 | **/ | |
1313 | static int | |
1314 | lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno, | |
1315 | struct hbq_dmabuf *hbq_buf) | |
1316 | { | |
1317 | struct lpfc_hbq_entry *hbqe; | |
1318 | dma_addr_t physaddr = hbq_buf->dbuf.phys; | |
1319 | ||
1320 | /* Get next HBQ entry slot to use */ | |
1321 | hbqe = lpfc_sli_next_hbq_slot(phba, hbqno); | |
1322 | if (hbqe) { | |
1323 | struct hbq_s *hbqp = &phba->hbqs[hbqno]; | |
1324 | ||
1325 | hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); | |
1326 | hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr)); | |
1327 | hbqe->bde.tus.f.bdeSize = hbq_buf->size; | |
1328 | hbqe->bde.tus.f.bdeFlags = 0; | |
1329 | hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w); | |
1330 | hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag); | |
1331 | /* Sync SLIM */ | |
1332 | hbqp->hbqPutIdx = hbqp->next_hbqPutIdx; | |
1333 | writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno); | |
1334 | /* flush */ | |
1335 | readl(phba->hbq_put + hbqno); | |
1336 | list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list); | |
1337 | return 0; | |
1338 | } else | |
1339 | return -ENOMEM; | |
1340 | } | |
1341 | ||
1342 | /** | |
1343 | * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware | |
1344 | * @phba: Pointer to HBA context object. | |
1345 | * @hbqno: HBQ number. | |
1346 | * @hbq_buf: Pointer to HBQ buffer. | |
1347 | * | |
1348 | * This function is called with the hbalock held to post an RQE to the SLI4 | |
1349 | * firmware. If able to post the RQE to the RQ it will queue the hbq entry to | |
1350 | * the hbq_buffer_list and return zero, otherwise it will return an error. | |
1351 | **/ | |
1352 | static int | |
1353 | lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno, | |
1354 | struct hbq_dmabuf *hbq_buf) | |
1355 | { | |
1356 | int rc; | |
1357 | struct lpfc_rqe hrqe; | |
1358 | struct lpfc_rqe drqe; | |
1359 | ||
1360 | hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys); | |
1361 | hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys); | |
1362 | drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys); | |
1363 | drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys); | |
1364 | rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, | |
1365 | &hrqe, &drqe); | |
1366 | if (rc < 0) | |
1367 | return rc; | |
1368 | hbq_buf->tag = rc; | |
1369 | list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list); | |
1370 | return 0; | |
1371 | } | |
1372 | ||
1373 | /* HBQ for ELS and CT traffic. */ | |
1374 | static struct lpfc_hbq_init lpfc_els_hbq = { | |
1375 | .rn = 1, | |
1376 | .entry_count = 200, | |
1377 | .mask_count = 0, | |
1378 | .profile = 0, | |
1379 | .ring_mask = (1 << LPFC_ELS_RING), | |
1380 | .buffer_count = 0, | |
1381 | .init_count = 40, | |
1382 | .add_count = 40, | |
1383 | }; | |
1384 | ||
1385 | /* HBQ for the extra ring if needed */ | |
1386 | static struct lpfc_hbq_init lpfc_extra_hbq = { | |
1387 | .rn = 1, | |
1388 | .entry_count = 200, | |
1389 | .mask_count = 0, | |
1390 | .profile = 0, | |
1391 | .ring_mask = (1 << LPFC_EXTRA_RING), | |
1392 | .buffer_count = 0, | |
1393 | .init_count = 0, | |
1394 | .add_count = 5, | |
1395 | }; | |
1396 | ||
1397 | /* Array of HBQs */ | |
1398 | struct lpfc_hbq_init *lpfc_hbq_defs[] = { | |
1399 | &lpfc_els_hbq, | |
1400 | &lpfc_extra_hbq, | |
1401 | }; | |
1402 | ||
1403 | /** | |
1404 | * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ | |
1405 | * @phba: Pointer to HBA context object. | |
1406 | * @hbqno: HBQ number. | |
1407 | * @count: Number of HBQ buffers to be posted. | |
1408 | * | |
1409 | * This function is called with no lock held to post more hbq buffers to the | |
1410 | * given HBQ. The function returns the number of HBQ buffers successfully | |
1411 | * posted. | |
1412 | **/ | |
1413 | static int | |
1414 | lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count) | |
1415 | { | |
1416 | uint32_t i, posted = 0; | |
1417 | unsigned long flags; | |
1418 | struct hbq_dmabuf *hbq_buffer; | |
1419 | LIST_HEAD(hbq_buf_list); | |
1420 | if (!phba->hbqs[hbqno].hbq_alloc_buffer) | |
1421 | return 0; | |
1422 | ||
1423 | if ((phba->hbqs[hbqno].buffer_count + count) > | |
1424 | lpfc_hbq_defs[hbqno]->entry_count) | |
1425 | count = lpfc_hbq_defs[hbqno]->entry_count - | |
1426 | phba->hbqs[hbqno].buffer_count; | |
1427 | if (!count) | |
1428 | return 0; | |
1429 | /* Allocate HBQ entries */ | |
1430 | for (i = 0; i < count; i++) { | |
1431 | hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba); | |
1432 | if (!hbq_buffer) | |
1433 | break; | |
1434 | list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list); | |
1435 | } | |
1436 | /* Check whether HBQ is still in use */ | |
1437 | spin_lock_irqsave(&phba->hbalock, flags); | |
1438 | if (!phba->hbq_in_use) | |
1439 | goto err; | |
1440 | while (!list_empty(&hbq_buf_list)) { | |
1441 | list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf, | |
1442 | dbuf.list); | |
1443 | hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count | | |
1444 | (hbqno << 16)); | |
1445 | if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) { | |
1446 | phba->hbqs[hbqno].buffer_count++; | |
1447 | posted++; | |
1448 | } else | |
1449 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); | |
1450 | } | |
1451 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
1452 | return posted; | |
1453 | err: | |
1454 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
1455 | while (!list_empty(&hbq_buf_list)) { | |
1456 | list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf, | |
1457 | dbuf.list); | |
1458 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); | |
1459 | } | |
1460 | return 0; | |
1461 | } | |
1462 | ||
1463 | /** | |
1464 | * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware | |
1465 | * @phba: Pointer to HBA context object. | |
1466 | * @qno: HBQ number. | |
1467 | * | |
1468 | * This function posts more buffers to the HBQ. This function | |
1469 | * is called with no lock held. The function returns the number of HBQ entries | |
1470 | * successfully allocated. | |
1471 | **/ | |
1472 | int | |
1473 | lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno) | |
1474 | { | |
1475 | return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno, | |
1476 | lpfc_hbq_defs[qno]->add_count)); | |
1477 | } | |
1478 | ||
1479 | /** | |
1480 | * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ | |
1481 | * @phba: Pointer to HBA context object. | |
1482 | * @qno: HBQ queue number. | |
1483 | * | |
1484 | * This function is called from SLI initialization code path with | |
1485 | * no lock held to post initial HBQ buffers to firmware. The | |
1486 | * function returns the number of HBQ entries successfully allocated. | |
1487 | **/ | |
1488 | static int | |
1489 | lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno) | |
1490 | { | |
1491 | return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno, | |
1492 | lpfc_hbq_defs[qno]->init_count)); | |
1493 | } | |
1494 | ||
1495 | /** | |
1496 | * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list | |
1497 | * @phba: Pointer to HBA context object. | |
1498 | * @hbqno: HBQ number. | |
1499 | * | |
1500 | * This function removes the first hbq buffer on an hbq list and returns a | |
1501 | * pointer to that buffer. If it finds no buffers on the list it returns NULL. | |
1502 | **/ | |
1503 | static struct hbq_dmabuf * | |
1504 | lpfc_sli_hbqbuf_get(struct list_head *rb_list) | |
1505 | { | |
1506 | struct lpfc_dmabuf *d_buf; | |
1507 | ||
1508 | list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list); | |
1509 | if (!d_buf) | |
1510 | return NULL; | |
1511 | return container_of(d_buf, struct hbq_dmabuf, dbuf); | |
1512 | } | |
1513 | ||
1514 | /** | |
1515 | * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag | |
1516 | * @phba: Pointer to HBA context object. | |
1517 | * @tag: Tag of the hbq buffer. | |
1518 | * | |
1519 | * This function is called with hbalock held. This function searches | |
1520 | * for the hbq buffer associated with the given tag in the hbq buffer | |
1521 | * list. If it finds the hbq buffer, it returns the hbq_buffer other wise | |
1522 | * it returns NULL. | |
1523 | **/ | |
1524 | static struct hbq_dmabuf * | |
1525 | lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag) | |
1526 | { | |
1527 | struct lpfc_dmabuf *d_buf; | |
1528 | struct hbq_dmabuf *hbq_buf; | |
1529 | uint32_t hbqno; | |
1530 | ||
1531 | hbqno = tag >> 16; | |
1532 | if (hbqno >= LPFC_MAX_HBQS) | |
1533 | return NULL; | |
1534 | ||
1535 | spin_lock_irq(&phba->hbalock); | |
1536 | list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) { | |
1537 | hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); | |
1538 | if (hbq_buf->tag == tag) { | |
1539 | spin_unlock_irq(&phba->hbalock); | |
1540 | return hbq_buf; | |
1541 | } | |
1542 | } | |
1543 | spin_unlock_irq(&phba->hbalock); | |
1544 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT, | |
1545 | "1803 Bad hbq tag. Data: x%x x%x\n", | |
1546 | tag, phba->hbqs[tag >> 16].buffer_count); | |
1547 | return NULL; | |
1548 | } | |
1549 | ||
1550 | /** | |
1551 | * lpfc_sli_free_hbq - Give back the hbq buffer to firmware | |
1552 | * @phba: Pointer to HBA context object. | |
1553 | * @hbq_buffer: Pointer to HBQ buffer. | |
1554 | * | |
1555 | * This function is called with hbalock. This function gives back | |
1556 | * the hbq buffer to firmware. If the HBQ does not have space to | |
1557 | * post the buffer, it will free the buffer. | |
1558 | **/ | |
1559 | void | |
1560 | lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer) | |
1561 | { | |
1562 | uint32_t hbqno; | |
1563 | ||
1564 | if (hbq_buffer) { | |
1565 | hbqno = hbq_buffer->tag >> 16; | |
1566 | if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) | |
1567 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); | |
1568 | } | |
1569 | } | |
1570 | ||
1571 | /** | |
1572 | * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox | |
1573 | * @mbxCommand: mailbox command code. | |
1574 | * | |
1575 | * This function is called by the mailbox event handler function to verify | |
1576 | * that the completed mailbox command is a legitimate mailbox command. If the | |
1577 | * completed mailbox is not known to the function, it will return MBX_SHUTDOWN | |
1578 | * and the mailbox event handler will take the HBA offline. | |
1579 | **/ | |
1580 | static int | |
1581 | lpfc_sli_chk_mbx_command(uint8_t mbxCommand) | |
1582 | { | |
1583 | uint8_t ret; | |
1584 | ||
1585 | switch (mbxCommand) { | |
1586 | case MBX_LOAD_SM: | |
1587 | case MBX_READ_NV: | |
1588 | case MBX_WRITE_NV: | |
1589 | case MBX_WRITE_VPARMS: | |
1590 | case MBX_RUN_BIU_DIAG: | |
1591 | case MBX_INIT_LINK: | |
1592 | case MBX_DOWN_LINK: | |
1593 | case MBX_CONFIG_LINK: | |
1594 | case MBX_CONFIG_RING: | |
1595 | case MBX_RESET_RING: | |
1596 | case MBX_READ_CONFIG: | |
1597 | case MBX_READ_RCONFIG: | |
1598 | case MBX_READ_SPARM: | |
1599 | case MBX_READ_STATUS: | |
1600 | case MBX_READ_RPI: | |
1601 | case MBX_READ_XRI: | |
1602 | case MBX_READ_REV: | |
1603 | case MBX_READ_LNK_STAT: | |
1604 | case MBX_REG_LOGIN: | |
1605 | case MBX_UNREG_LOGIN: | |
1606 | case MBX_READ_LA: | |
1607 | case MBX_CLEAR_LA: | |
1608 | case MBX_DUMP_MEMORY: | |
1609 | case MBX_DUMP_CONTEXT: | |
1610 | case MBX_RUN_DIAGS: | |
1611 | case MBX_RESTART: | |
1612 | case MBX_UPDATE_CFG: | |
1613 | case MBX_DOWN_LOAD: | |
1614 | case MBX_DEL_LD_ENTRY: | |
1615 | case MBX_RUN_PROGRAM: | |
1616 | case MBX_SET_MASK: | |
1617 | case MBX_SET_VARIABLE: | |
1618 | case MBX_UNREG_D_ID: | |
1619 | case MBX_KILL_BOARD: | |
1620 | case MBX_CONFIG_FARP: | |
1621 | case MBX_BEACON: | |
1622 | case MBX_LOAD_AREA: | |
1623 | case MBX_RUN_BIU_DIAG64: | |
1624 | case MBX_CONFIG_PORT: | |
1625 | case MBX_READ_SPARM64: | |
1626 | case MBX_READ_RPI64: | |
1627 | case MBX_REG_LOGIN64: | |
1628 | case MBX_READ_LA64: | |
1629 | case MBX_WRITE_WWN: | |
1630 | case MBX_SET_DEBUG: | |
1631 | case MBX_LOAD_EXP_ROM: | |
1632 | case MBX_ASYNCEVT_ENABLE: | |
1633 | case MBX_REG_VPI: | |
1634 | case MBX_UNREG_VPI: | |
1635 | case MBX_HEARTBEAT: | |
1636 | case MBX_PORT_CAPABILITIES: | |
1637 | case MBX_PORT_IOV_CONTROL: | |
1638 | case MBX_SLI4_CONFIG: | |
1639 | case MBX_SLI4_REQ_FTRS: | |
1640 | case MBX_REG_FCFI: | |
1641 | case MBX_UNREG_FCFI: | |
1642 | case MBX_REG_VFI: | |
1643 | case MBX_UNREG_VFI: | |
1644 | case MBX_INIT_VPI: | |
1645 | case MBX_INIT_VFI: | |
1646 | case MBX_RESUME_RPI: | |
1647 | ret = mbxCommand; | |
1648 | break; | |
1649 | default: | |
1650 | ret = MBX_SHUTDOWN; | |
1651 | break; | |
1652 | } | |
1653 | return ret; | |
1654 | } | |
1655 | ||
1656 | /** | |
1657 | * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler | |
1658 | * @phba: Pointer to HBA context object. | |
1659 | * @pmboxq: Pointer to mailbox command. | |
1660 | * | |
1661 | * This is completion handler function for mailbox commands issued from | |
1662 | * lpfc_sli_issue_mbox_wait function. This function is called by the | |
1663 | * mailbox event handler function with no lock held. This function | |
1664 | * will wake up thread waiting on the wait queue pointed by context1 | |
1665 | * of the mailbox. | |
1666 | **/ | |
1667 | void | |
1668 | lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) | |
1669 | { | |
1670 | wait_queue_head_t *pdone_q; | |
1671 | unsigned long drvr_flag; | |
1672 | ||
1673 | /* | |
1674 | * If pdone_q is empty, the driver thread gave up waiting and | |
1675 | * continued running. | |
1676 | */ | |
1677 | pmboxq->mbox_flag |= LPFC_MBX_WAKE; | |
1678 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
1679 | pdone_q = (wait_queue_head_t *) pmboxq->context1; | |
1680 | if (pdone_q) | |
1681 | wake_up_interruptible(pdone_q); | |
1682 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
1683 | return; | |
1684 | } | |
1685 | ||
1686 | ||
1687 | /** | |
1688 | * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler | |
1689 | * @phba: Pointer to HBA context object. | |
1690 | * @pmb: Pointer to mailbox object. | |
1691 | * | |
1692 | * This function is the default mailbox completion handler. It | |
1693 | * frees the memory resources associated with the completed mailbox | |
1694 | * command. If the completed command is a REG_LOGIN mailbox command, | |
1695 | * this function will issue a UREG_LOGIN to re-claim the RPI. | |
1696 | **/ | |
1697 | void | |
1698 | lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) | |
1699 | { | |
1700 | struct lpfc_dmabuf *mp; | |
1701 | uint16_t rpi, vpi; | |
1702 | int rc; | |
1703 | ||
1704 | mp = (struct lpfc_dmabuf *) (pmb->context1); | |
1705 | ||
1706 | if (mp) { | |
1707 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
1708 | kfree(mp); | |
1709 | } | |
1710 | ||
1711 | if ((pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) && | |
1712 | (phba->sli_rev == LPFC_SLI_REV4)) | |
1713 | lpfc_sli4_free_rpi(phba, pmb->u.mb.un.varUnregLogin.rpi); | |
1714 | ||
1715 | /* | |
1716 | * If a REG_LOGIN succeeded after node is destroyed or node | |
1717 | * is in re-discovery driver need to cleanup the RPI. | |
1718 | */ | |
1719 | if (!(phba->pport->load_flag & FC_UNLOADING) && | |
1720 | pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 && | |
1721 | !pmb->u.mb.mbxStatus) { | |
1722 | rpi = pmb->u.mb.un.varWords[0]; | |
1723 | vpi = pmb->u.mb.un.varRegLogin.vpi - phba->vpi_base; | |
1724 | lpfc_unreg_login(phba, vpi, rpi, pmb); | |
1725 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
1726 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
1727 | if (rc != MBX_NOT_FINISHED) | |
1728 | return; | |
1729 | } | |
1730 | ||
1731 | if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG) | |
1732 | lpfc_sli4_mbox_cmd_free(phba, pmb); | |
1733 | else | |
1734 | mempool_free(pmb, phba->mbox_mem_pool); | |
1735 | } | |
1736 | ||
1737 | /** | |
1738 | * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware | |
1739 | * @phba: Pointer to HBA context object. | |
1740 | * | |
1741 | * This function is called with no lock held. This function processes all | |
1742 | * the completed mailbox commands and gives it to upper layers. The interrupt | |
1743 | * service routine processes mailbox completion interrupt and adds completed | |
1744 | * mailbox commands to the mboxq_cmpl queue and signals the worker thread. | |
1745 | * Worker thread call lpfc_sli_handle_mb_event, which will return the | |
1746 | * completed mailbox commands in mboxq_cmpl queue to the upper layers. This | |
1747 | * function returns the mailbox commands to the upper layer by calling the | |
1748 | * completion handler function of each mailbox. | |
1749 | **/ | |
1750 | int | |
1751 | lpfc_sli_handle_mb_event(struct lpfc_hba *phba) | |
1752 | { | |
1753 | MAILBOX_t *pmbox; | |
1754 | LPFC_MBOXQ_t *pmb; | |
1755 | int rc; | |
1756 | LIST_HEAD(cmplq); | |
1757 | ||
1758 | phba->sli.slistat.mbox_event++; | |
1759 | ||
1760 | /* Get all completed mailboxe buffers into the cmplq */ | |
1761 | spin_lock_irq(&phba->hbalock); | |
1762 | list_splice_init(&phba->sli.mboxq_cmpl, &cmplq); | |
1763 | spin_unlock_irq(&phba->hbalock); | |
1764 | ||
1765 | /* Get a Mailbox buffer to setup mailbox commands for callback */ | |
1766 | do { | |
1767 | list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list); | |
1768 | if (pmb == NULL) | |
1769 | break; | |
1770 | ||
1771 | pmbox = &pmb->u.mb; | |
1772 | ||
1773 | if (pmbox->mbxCommand != MBX_HEARTBEAT) { | |
1774 | if (pmb->vport) { | |
1775 | lpfc_debugfs_disc_trc(pmb->vport, | |
1776 | LPFC_DISC_TRC_MBOX_VPORT, | |
1777 | "MBOX cmpl vport: cmd:x%x mb:x%x x%x", | |
1778 | (uint32_t)pmbox->mbxCommand, | |
1779 | pmbox->un.varWords[0], | |
1780 | pmbox->un.varWords[1]); | |
1781 | } | |
1782 | else { | |
1783 | lpfc_debugfs_disc_trc(phba->pport, | |
1784 | LPFC_DISC_TRC_MBOX, | |
1785 | "MBOX cmpl: cmd:x%x mb:x%x x%x", | |
1786 | (uint32_t)pmbox->mbxCommand, | |
1787 | pmbox->un.varWords[0], | |
1788 | pmbox->un.varWords[1]); | |
1789 | } | |
1790 | } | |
1791 | ||
1792 | /* | |
1793 | * It is a fatal error if unknown mbox command completion. | |
1794 | */ | |
1795 | if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) == | |
1796 | MBX_SHUTDOWN) { | |
1797 | /* Unknow mailbox command compl */ | |
1798 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
1799 | "(%d):0323 Unknown Mailbox command " | |
1800 | "x%x (x%x) Cmpl\n", | |
1801 | pmb->vport ? pmb->vport->vpi : 0, | |
1802 | pmbox->mbxCommand, | |
1803 | lpfc_sli4_mbox_opcode_get(phba, pmb)); | |
1804 | phba->link_state = LPFC_HBA_ERROR; | |
1805 | phba->work_hs = HS_FFER3; | |
1806 | lpfc_handle_eratt(phba); | |
1807 | continue; | |
1808 | } | |
1809 | ||
1810 | if (pmbox->mbxStatus) { | |
1811 | phba->sli.slistat.mbox_stat_err++; | |
1812 | if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) { | |
1813 | /* Mbox cmd cmpl error - RETRYing */ | |
1814 | lpfc_printf_log(phba, KERN_INFO, | |
1815 | LOG_MBOX | LOG_SLI, | |
1816 | "(%d):0305 Mbox cmd cmpl " | |
1817 | "error - RETRYing Data: x%x " | |
1818 | "(x%x) x%x x%x x%x\n", | |
1819 | pmb->vport ? pmb->vport->vpi :0, | |
1820 | pmbox->mbxCommand, | |
1821 | lpfc_sli4_mbox_opcode_get(phba, | |
1822 | pmb), | |
1823 | pmbox->mbxStatus, | |
1824 | pmbox->un.varWords[0], | |
1825 | pmb->vport->port_state); | |
1826 | pmbox->mbxStatus = 0; | |
1827 | pmbox->mbxOwner = OWN_HOST; | |
1828 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
1829 | if (rc != MBX_NOT_FINISHED) | |
1830 | continue; | |
1831 | } | |
1832 | } | |
1833 | ||
1834 | /* Mailbox cmd <cmd> Cmpl <cmpl> */ | |
1835 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
1836 | "(%d):0307 Mailbox cmd x%x (x%x) Cmpl x%p " | |
1837 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n", | |
1838 | pmb->vport ? pmb->vport->vpi : 0, | |
1839 | pmbox->mbxCommand, | |
1840 | lpfc_sli4_mbox_opcode_get(phba, pmb), | |
1841 | pmb->mbox_cmpl, | |
1842 | *((uint32_t *) pmbox), | |
1843 | pmbox->un.varWords[0], | |
1844 | pmbox->un.varWords[1], | |
1845 | pmbox->un.varWords[2], | |
1846 | pmbox->un.varWords[3], | |
1847 | pmbox->un.varWords[4], | |
1848 | pmbox->un.varWords[5], | |
1849 | pmbox->un.varWords[6], | |
1850 | pmbox->un.varWords[7]); | |
1851 | ||
1852 | if (pmb->mbox_cmpl) | |
1853 | pmb->mbox_cmpl(phba,pmb); | |
1854 | } while (1); | |
1855 | return 0; | |
1856 | } | |
1857 | ||
1858 | /** | |
1859 | * lpfc_sli_get_buff - Get the buffer associated with the buffer tag | |
1860 | * @phba: Pointer to HBA context object. | |
1861 | * @pring: Pointer to driver SLI ring object. | |
1862 | * @tag: buffer tag. | |
1863 | * | |
1864 | * This function is called with no lock held. When QUE_BUFTAG_BIT bit | |
1865 | * is set in the tag the buffer is posted for a particular exchange, | |
1866 | * the function will return the buffer without replacing the buffer. | |
1867 | * If the buffer is for unsolicited ELS or CT traffic, this function | |
1868 | * returns the buffer and also posts another buffer to the firmware. | |
1869 | **/ | |
1870 | static struct lpfc_dmabuf * | |
1871 | lpfc_sli_get_buff(struct lpfc_hba *phba, | |
1872 | struct lpfc_sli_ring *pring, | |
1873 | uint32_t tag) | |
1874 | { | |
1875 | struct hbq_dmabuf *hbq_entry; | |
1876 | ||
1877 | if (tag & QUE_BUFTAG_BIT) | |
1878 | return lpfc_sli_ring_taggedbuf_get(phba, pring, tag); | |
1879 | hbq_entry = lpfc_sli_hbqbuf_find(phba, tag); | |
1880 | if (!hbq_entry) | |
1881 | return NULL; | |
1882 | return &hbq_entry->dbuf; | |
1883 | } | |
1884 | ||
1885 | /** | |
1886 | * lpfc_complete_unsol_iocb - Complete an unsolicited sequence | |
1887 | * @phba: Pointer to HBA context object. | |
1888 | * @pring: Pointer to driver SLI ring object. | |
1889 | * @saveq: Pointer to the iocbq struct representing the sequence starting frame. | |
1890 | * @fch_r_ctl: the r_ctl for the first frame of the sequence. | |
1891 | * @fch_type: the type for the first frame of the sequence. | |
1892 | * | |
1893 | * This function is called with no lock held. This function uses the r_ctl and | |
1894 | * type of the received sequence to find the correct callback function to call | |
1895 | * to process the sequence. | |
1896 | **/ | |
1897 | static int | |
1898 | lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
1899 | struct lpfc_iocbq *saveq, uint32_t fch_r_ctl, | |
1900 | uint32_t fch_type) | |
1901 | { | |
1902 | int i; | |
1903 | ||
1904 | /* unSolicited Responses */ | |
1905 | if (pring->prt[0].profile) { | |
1906 | if (pring->prt[0].lpfc_sli_rcv_unsol_event) | |
1907 | (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring, | |
1908 | saveq); | |
1909 | return 1; | |
1910 | } | |
1911 | /* We must search, based on rctl / type | |
1912 | for the right routine */ | |
1913 | for (i = 0; i < pring->num_mask; i++) { | |
1914 | if ((pring->prt[i].rctl == fch_r_ctl) && | |
1915 | (pring->prt[i].type == fch_type)) { | |
1916 | if (pring->prt[i].lpfc_sli_rcv_unsol_event) | |
1917 | (pring->prt[i].lpfc_sli_rcv_unsol_event) | |
1918 | (phba, pring, saveq); | |
1919 | return 1; | |
1920 | } | |
1921 | } | |
1922 | return 0; | |
1923 | } | |
1924 | ||
1925 | /** | |
1926 | * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler | |
1927 | * @phba: Pointer to HBA context object. | |
1928 | * @pring: Pointer to driver SLI ring object. | |
1929 | * @saveq: Pointer to the unsolicited iocb. | |
1930 | * | |
1931 | * This function is called with no lock held by the ring event handler | |
1932 | * when there is an unsolicited iocb posted to the response ring by the | |
1933 | * firmware. This function gets the buffer associated with the iocbs | |
1934 | * and calls the event handler for the ring. This function handles both | |
1935 | * qring buffers and hbq buffers. | |
1936 | * When the function returns 1 the caller can free the iocb object otherwise | |
1937 | * upper layer functions will free the iocb objects. | |
1938 | **/ | |
1939 | static int | |
1940 | lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
1941 | struct lpfc_iocbq *saveq) | |
1942 | { | |
1943 | IOCB_t * irsp; | |
1944 | WORD5 * w5p; | |
1945 | uint32_t Rctl, Type; | |
1946 | uint32_t match; | |
1947 | struct lpfc_iocbq *iocbq; | |
1948 | struct lpfc_dmabuf *dmzbuf; | |
1949 | ||
1950 | match = 0; | |
1951 | irsp = &(saveq->iocb); | |
1952 | ||
1953 | if (irsp->ulpCommand == CMD_ASYNC_STATUS) { | |
1954 | if (pring->lpfc_sli_rcv_async_status) | |
1955 | pring->lpfc_sli_rcv_async_status(phba, pring, saveq); | |
1956 | else | |
1957 | lpfc_printf_log(phba, | |
1958 | KERN_WARNING, | |
1959 | LOG_SLI, | |
1960 | "0316 Ring %d handler: unexpected " | |
1961 | "ASYNC_STATUS iocb received evt_code " | |
1962 | "0x%x\n", | |
1963 | pring->ringno, | |
1964 | irsp->un.asyncstat.evt_code); | |
1965 | return 1; | |
1966 | } | |
1967 | ||
1968 | if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) && | |
1969 | (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) { | |
1970 | if (irsp->ulpBdeCount > 0) { | |
1971 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1972 | irsp->un.ulpWord[3]); | |
1973 | lpfc_in_buf_free(phba, dmzbuf); | |
1974 | } | |
1975 | ||
1976 | if (irsp->ulpBdeCount > 1) { | |
1977 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1978 | irsp->unsli3.sli3Words[3]); | |
1979 | lpfc_in_buf_free(phba, dmzbuf); | |
1980 | } | |
1981 | ||
1982 | if (irsp->ulpBdeCount > 2) { | |
1983 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1984 | irsp->unsli3.sli3Words[7]); | |
1985 | lpfc_in_buf_free(phba, dmzbuf); | |
1986 | } | |
1987 | ||
1988 | return 1; | |
1989 | } | |
1990 | ||
1991 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { | |
1992 | if (irsp->ulpBdeCount != 0) { | |
1993 | saveq->context2 = lpfc_sli_get_buff(phba, pring, | |
1994 | irsp->un.ulpWord[3]); | |
1995 | if (!saveq->context2) | |
1996 | lpfc_printf_log(phba, | |
1997 | KERN_ERR, | |
1998 | LOG_SLI, | |
1999 | "0341 Ring %d Cannot find buffer for " | |
2000 | "an unsolicited iocb. tag 0x%x\n", | |
2001 | pring->ringno, | |
2002 | irsp->un.ulpWord[3]); | |
2003 | } | |
2004 | if (irsp->ulpBdeCount == 2) { | |
2005 | saveq->context3 = lpfc_sli_get_buff(phba, pring, | |
2006 | irsp->unsli3.sli3Words[7]); | |
2007 | if (!saveq->context3) | |
2008 | lpfc_printf_log(phba, | |
2009 | KERN_ERR, | |
2010 | LOG_SLI, | |
2011 | "0342 Ring %d Cannot find buffer for an" | |
2012 | " unsolicited iocb. tag 0x%x\n", | |
2013 | pring->ringno, | |
2014 | irsp->unsli3.sli3Words[7]); | |
2015 | } | |
2016 | list_for_each_entry(iocbq, &saveq->list, list) { | |
2017 | irsp = &(iocbq->iocb); | |
2018 | if (irsp->ulpBdeCount != 0) { | |
2019 | iocbq->context2 = lpfc_sli_get_buff(phba, pring, | |
2020 | irsp->un.ulpWord[3]); | |
2021 | if (!iocbq->context2) | |
2022 | lpfc_printf_log(phba, | |
2023 | KERN_ERR, | |
2024 | LOG_SLI, | |
2025 | "0343 Ring %d Cannot find " | |
2026 | "buffer for an unsolicited iocb" | |
2027 | ". tag 0x%x\n", pring->ringno, | |
2028 | irsp->un.ulpWord[3]); | |
2029 | } | |
2030 | if (irsp->ulpBdeCount == 2) { | |
2031 | iocbq->context3 = lpfc_sli_get_buff(phba, pring, | |
2032 | irsp->unsli3.sli3Words[7]); | |
2033 | if (!iocbq->context3) | |
2034 | lpfc_printf_log(phba, | |
2035 | KERN_ERR, | |
2036 | LOG_SLI, | |
2037 | "0344 Ring %d Cannot find " | |
2038 | "buffer for an unsolicited " | |
2039 | "iocb. tag 0x%x\n", | |
2040 | pring->ringno, | |
2041 | irsp->unsli3.sli3Words[7]); | |
2042 | } | |
2043 | } | |
2044 | } | |
2045 | if (irsp->ulpBdeCount != 0 && | |
2046 | (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX || | |
2047 | irsp->ulpStatus == IOSTAT_INTERMED_RSP)) { | |
2048 | int found = 0; | |
2049 | ||
2050 | /* search continue save q for same XRI */ | |
2051 | list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) { | |
2052 | if (iocbq->iocb.ulpContext == saveq->iocb.ulpContext) { | |
2053 | list_add_tail(&saveq->list, &iocbq->list); | |
2054 | found = 1; | |
2055 | break; | |
2056 | } | |
2057 | } | |
2058 | if (!found) | |
2059 | list_add_tail(&saveq->clist, | |
2060 | &pring->iocb_continue_saveq); | |
2061 | if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) { | |
2062 | list_del_init(&iocbq->clist); | |
2063 | saveq = iocbq; | |
2064 | irsp = &(saveq->iocb); | |
2065 | } else | |
2066 | return 0; | |
2067 | } | |
2068 | if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) || | |
2069 | (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) || | |
2070 | (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) { | |
2071 | Rctl = FC_ELS_REQ; | |
2072 | Type = FC_ELS_DATA; | |
2073 | } else { | |
2074 | w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]); | |
2075 | Rctl = w5p->hcsw.Rctl; | |
2076 | Type = w5p->hcsw.Type; | |
2077 | ||
2078 | /* Firmware Workaround */ | |
2079 | if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) && | |
2080 | (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX || | |
2081 | irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { | |
2082 | Rctl = FC_ELS_REQ; | |
2083 | Type = FC_ELS_DATA; | |
2084 | w5p->hcsw.Rctl = Rctl; | |
2085 | w5p->hcsw.Type = Type; | |
2086 | } | |
2087 | } | |
2088 | ||
2089 | if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type)) | |
2090 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
2091 | "0313 Ring %d handler: unexpected Rctl x%x " | |
2092 | "Type x%x received\n", | |
2093 | pring->ringno, Rctl, Type); | |
2094 | ||
2095 | return 1; | |
2096 | } | |
2097 | ||
2098 | /** | |
2099 | * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb | |
2100 | * @phba: Pointer to HBA context object. | |
2101 | * @pring: Pointer to driver SLI ring object. | |
2102 | * @prspiocb: Pointer to response iocb object. | |
2103 | * | |
2104 | * This function looks up the iocb_lookup table to get the command iocb | |
2105 | * corresponding to the given response iocb using the iotag of the | |
2106 | * response iocb. This function is called with the hbalock held. | |
2107 | * This function returns the command iocb object if it finds the command | |
2108 | * iocb else returns NULL. | |
2109 | **/ | |
2110 | static struct lpfc_iocbq * | |
2111 | lpfc_sli_iocbq_lookup(struct lpfc_hba *phba, | |
2112 | struct lpfc_sli_ring *pring, | |
2113 | struct lpfc_iocbq *prspiocb) | |
2114 | { | |
2115 | struct lpfc_iocbq *cmd_iocb = NULL; | |
2116 | uint16_t iotag; | |
2117 | ||
2118 | iotag = prspiocb->iocb.ulpIoTag; | |
2119 | ||
2120 | if (iotag != 0 && iotag <= phba->sli.last_iotag) { | |
2121 | cmd_iocb = phba->sli.iocbq_lookup[iotag]; | |
2122 | list_del_init(&cmd_iocb->list); | |
2123 | pring->txcmplq_cnt--; | |
2124 | return cmd_iocb; | |
2125 | } | |
2126 | ||
2127 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2128 | "0317 iotag x%x is out off " | |
2129 | "range: max iotag x%x wd0 x%x\n", | |
2130 | iotag, phba->sli.last_iotag, | |
2131 | *(((uint32_t *) &prspiocb->iocb) + 7)); | |
2132 | return NULL; | |
2133 | } | |
2134 | ||
2135 | /** | |
2136 | * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag | |
2137 | * @phba: Pointer to HBA context object. | |
2138 | * @pring: Pointer to driver SLI ring object. | |
2139 | * @iotag: IOCB tag. | |
2140 | * | |
2141 | * This function looks up the iocb_lookup table to get the command iocb | |
2142 | * corresponding to the given iotag. This function is called with the | |
2143 | * hbalock held. | |
2144 | * This function returns the command iocb object if it finds the command | |
2145 | * iocb else returns NULL. | |
2146 | **/ | |
2147 | static struct lpfc_iocbq * | |
2148 | lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba, | |
2149 | struct lpfc_sli_ring *pring, uint16_t iotag) | |
2150 | { | |
2151 | struct lpfc_iocbq *cmd_iocb; | |
2152 | ||
2153 | if (iotag != 0 && iotag <= phba->sli.last_iotag) { | |
2154 | cmd_iocb = phba->sli.iocbq_lookup[iotag]; | |
2155 | list_del_init(&cmd_iocb->list); | |
2156 | pring->txcmplq_cnt--; | |
2157 | return cmd_iocb; | |
2158 | } | |
2159 | ||
2160 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2161 | "0372 iotag x%x is out off range: max iotag (x%x)\n", | |
2162 | iotag, phba->sli.last_iotag); | |
2163 | return NULL; | |
2164 | } | |
2165 | ||
2166 | /** | |
2167 | * lpfc_sli_process_sol_iocb - process solicited iocb completion | |
2168 | * @phba: Pointer to HBA context object. | |
2169 | * @pring: Pointer to driver SLI ring object. | |
2170 | * @saveq: Pointer to the response iocb to be processed. | |
2171 | * | |
2172 | * This function is called by the ring event handler for non-fcp | |
2173 | * rings when there is a new response iocb in the response ring. | |
2174 | * The caller is not required to hold any locks. This function | |
2175 | * gets the command iocb associated with the response iocb and | |
2176 | * calls the completion handler for the command iocb. If there | |
2177 | * is no completion handler, the function will free the resources | |
2178 | * associated with command iocb. If the response iocb is for | |
2179 | * an already aborted command iocb, the status of the completion | |
2180 | * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED. | |
2181 | * This function always returns 1. | |
2182 | **/ | |
2183 | static int | |
2184 | lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2185 | struct lpfc_iocbq *saveq) | |
2186 | { | |
2187 | struct lpfc_iocbq *cmdiocbp; | |
2188 | int rc = 1; | |
2189 | unsigned long iflag; | |
2190 | ||
2191 | /* Based on the iotag field, get the cmd IOCB from the txcmplq */ | |
2192 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2193 | cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq); | |
2194 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2195 | ||
2196 | if (cmdiocbp) { | |
2197 | if (cmdiocbp->iocb_cmpl) { | |
2198 | /* | |
2199 | * If an ELS command failed send an event to mgmt | |
2200 | * application. | |
2201 | */ | |
2202 | if (saveq->iocb.ulpStatus && | |
2203 | (pring->ringno == LPFC_ELS_RING) && | |
2204 | (cmdiocbp->iocb.ulpCommand == | |
2205 | CMD_ELS_REQUEST64_CR)) | |
2206 | lpfc_send_els_failure_event(phba, | |
2207 | cmdiocbp, saveq); | |
2208 | ||
2209 | /* | |
2210 | * Post all ELS completions to the worker thread. | |
2211 | * All other are passed to the completion callback. | |
2212 | */ | |
2213 | if (pring->ringno == LPFC_ELS_RING) { | |
2214 | if (cmdiocbp->iocb_flag & LPFC_DRIVER_ABORTED) { | |
2215 | cmdiocbp->iocb_flag &= | |
2216 | ~LPFC_DRIVER_ABORTED; | |
2217 | saveq->iocb.ulpStatus = | |
2218 | IOSTAT_LOCAL_REJECT; | |
2219 | saveq->iocb.un.ulpWord[4] = | |
2220 | IOERR_SLI_ABORTED; | |
2221 | ||
2222 | /* Firmware could still be in progress | |
2223 | * of DMAing payload, so don't free data | |
2224 | * buffer till after a hbeat. | |
2225 | */ | |
2226 | saveq->iocb_flag |= LPFC_DELAY_MEM_FREE; | |
2227 | } | |
2228 | } | |
2229 | (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); | |
2230 | } else | |
2231 | lpfc_sli_release_iocbq(phba, cmdiocbp); | |
2232 | } else { | |
2233 | /* | |
2234 | * Unknown initiating command based on the response iotag. | |
2235 | * This could be the case on the ELS ring because of | |
2236 | * lpfc_els_abort(). | |
2237 | */ | |
2238 | if (pring->ringno != LPFC_ELS_RING) { | |
2239 | /* | |
2240 | * Ring <ringno> handler: unexpected completion IoTag | |
2241 | * <IoTag> | |
2242 | */ | |
2243 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
2244 | "0322 Ring %d handler: " | |
2245 | "unexpected completion IoTag x%x " | |
2246 | "Data: x%x x%x x%x x%x\n", | |
2247 | pring->ringno, | |
2248 | saveq->iocb.ulpIoTag, | |
2249 | saveq->iocb.ulpStatus, | |
2250 | saveq->iocb.un.ulpWord[4], | |
2251 | saveq->iocb.ulpCommand, | |
2252 | saveq->iocb.ulpContext); | |
2253 | } | |
2254 | } | |
2255 | ||
2256 | return rc; | |
2257 | } | |
2258 | ||
2259 | /** | |
2260 | * lpfc_sli_rsp_pointers_error - Response ring pointer error handler | |
2261 | * @phba: Pointer to HBA context object. | |
2262 | * @pring: Pointer to driver SLI ring object. | |
2263 | * | |
2264 | * This function is called from the iocb ring event handlers when | |
2265 | * put pointer is ahead of the get pointer for a ring. This function signal | |
2266 | * an error attention condition to the worker thread and the worker | |
2267 | * thread will transition the HBA to offline state. | |
2268 | **/ | |
2269 | static void | |
2270 | lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
2271 | { | |
2272 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; | |
2273 | /* | |
2274 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger than | |
2275 | * rsp ring <portRspMax> | |
2276 | */ | |
2277 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2278 | "0312 Ring %d handler: portRspPut %d " | |
2279 | "is bigger than rsp ring %d\n", | |
2280 | pring->ringno, le32_to_cpu(pgp->rspPutInx), | |
2281 | pring->numRiocb); | |
2282 | ||
2283 | phba->link_state = LPFC_HBA_ERROR; | |
2284 | ||
2285 | /* | |
2286 | * All error attention handlers are posted to | |
2287 | * worker thread | |
2288 | */ | |
2289 | phba->work_ha |= HA_ERATT; | |
2290 | phba->work_hs = HS_FFER3; | |
2291 | ||
2292 | lpfc_worker_wake_up(phba); | |
2293 | ||
2294 | return; | |
2295 | } | |
2296 | ||
2297 | /** | |
2298 | * lpfc_poll_eratt - Error attention polling timer timeout handler | |
2299 | * @ptr: Pointer to address of HBA context object. | |
2300 | * | |
2301 | * This function is invoked by the Error Attention polling timer when the | |
2302 | * timer times out. It will check the SLI Error Attention register for | |
2303 | * possible attention events. If so, it will post an Error Attention event | |
2304 | * and wake up worker thread to process it. Otherwise, it will set up the | |
2305 | * Error Attention polling timer for the next poll. | |
2306 | **/ | |
2307 | void lpfc_poll_eratt(unsigned long ptr) | |
2308 | { | |
2309 | struct lpfc_hba *phba; | |
2310 | uint32_t eratt = 0; | |
2311 | ||
2312 | phba = (struct lpfc_hba *)ptr; | |
2313 | ||
2314 | /* Check chip HA register for error event */ | |
2315 | eratt = lpfc_sli_check_eratt(phba); | |
2316 | ||
2317 | if (eratt) | |
2318 | /* Tell the worker thread there is work to do */ | |
2319 | lpfc_worker_wake_up(phba); | |
2320 | else | |
2321 | /* Restart the timer for next eratt poll */ | |
2322 | mod_timer(&phba->eratt_poll, jiffies + | |
2323 | HZ * LPFC_ERATT_POLL_INTERVAL); | |
2324 | return; | |
2325 | } | |
2326 | ||
2327 | /** | |
2328 | * lpfc_sli_poll_fcp_ring - Handle FCP ring completion in polling mode | |
2329 | * @phba: Pointer to HBA context object. | |
2330 | * | |
2331 | * This function is called from lpfc_queuecommand, lpfc_poll_timeout, | |
2332 | * lpfc_abort_handler and lpfc_slave_configure when FCP_RING_POLLING | |
2333 | * is enabled. | |
2334 | * | |
2335 | * The caller does not hold any lock. | |
2336 | * The function processes each response iocb in the response ring until it | |
2337 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
2338 | * LE bit set. The function will call the completion handler of the command iocb | |
2339 | * if the response iocb indicates a completion for a command iocb or it is | |
2340 | * an abort completion. | |
2341 | **/ | |
2342 | void lpfc_sli_poll_fcp_ring(struct lpfc_hba *phba) | |
2343 | { | |
2344 | struct lpfc_sli *psli = &phba->sli; | |
2345 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_FCP_RING]; | |
2346 | IOCB_t *irsp = NULL; | |
2347 | IOCB_t *entry = NULL; | |
2348 | struct lpfc_iocbq *cmdiocbq = NULL; | |
2349 | struct lpfc_iocbq rspiocbq; | |
2350 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; | |
2351 | uint32_t status; | |
2352 | uint32_t portRspPut, portRspMax; | |
2353 | int type; | |
2354 | uint32_t rsp_cmpl = 0; | |
2355 | uint32_t ha_copy; | |
2356 | unsigned long iflags; | |
2357 | ||
2358 | pring->stats.iocb_event++; | |
2359 | ||
2360 | /* | |
2361 | * The next available response entry should never exceed the maximum | |
2362 | * entries. If it does, treat it as an adapter hardware error. | |
2363 | */ | |
2364 | portRspMax = pring->numRiocb; | |
2365 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2366 | if (unlikely(portRspPut >= portRspMax)) { | |
2367 | lpfc_sli_rsp_pointers_error(phba, pring); | |
2368 | return; | |
2369 | } | |
2370 | ||
2371 | rmb(); | |
2372 | while (pring->rspidx != portRspPut) { | |
2373 | entry = lpfc_resp_iocb(phba, pring); | |
2374 | if (++pring->rspidx >= portRspMax) | |
2375 | pring->rspidx = 0; | |
2376 | ||
2377 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, | |
2378 | (uint32_t *) &rspiocbq.iocb, | |
2379 | phba->iocb_rsp_size); | |
2380 | irsp = &rspiocbq.iocb; | |
2381 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); | |
2382 | pring->stats.iocb_rsp++; | |
2383 | rsp_cmpl++; | |
2384 | ||
2385 | if (unlikely(irsp->ulpStatus)) { | |
2386 | /* Rsp ring <ringno> error: IOCB */ | |
2387 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
2388 | "0326 Rsp Ring %d error: IOCB Data: " | |
2389 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", | |
2390 | pring->ringno, | |
2391 | irsp->un.ulpWord[0], | |
2392 | irsp->un.ulpWord[1], | |
2393 | irsp->un.ulpWord[2], | |
2394 | irsp->un.ulpWord[3], | |
2395 | irsp->un.ulpWord[4], | |
2396 | irsp->un.ulpWord[5], | |
2397 | *(uint32_t *)&irsp->un1, | |
2398 | *((uint32_t *)&irsp->un1 + 1)); | |
2399 | } | |
2400 | ||
2401 | switch (type) { | |
2402 | case LPFC_ABORT_IOCB: | |
2403 | case LPFC_SOL_IOCB: | |
2404 | /* | |
2405 | * Idle exchange closed via ABTS from port. No iocb | |
2406 | * resources need to be recovered. | |
2407 | */ | |
2408 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
2409 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
2410 | "0314 IOCB cmd 0x%x " | |
2411 | "processed. Skipping " | |
2412 | "completion", | |
2413 | irsp->ulpCommand); | |
2414 | break; | |
2415 | } | |
2416 | ||
2417 | spin_lock_irqsave(&phba->hbalock, iflags); | |
2418 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, | |
2419 | &rspiocbq); | |
2420 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
2421 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { | |
2422 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
2423 | &rspiocbq); | |
2424 | } | |
2425 | break; | |
2426 | default: | |
2427 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
2428 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
2429 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
2430 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
2431 | MAX_MSG_DATA); | |
2432 | dev_warn(&((phba->pcidev)->dev), | |
2433 | "lpfc%d: %s\n", | |
2434 | phba->brd_no, adaptermsg); | |
2435 | } else { | |
2436 | /* Unknown IOCB command */ | |
2437 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2438 | "0321 Unknown IOCB command " | |
2439 | "Data: x%x, x%x x%x x%x x%x\n", | |
2440 | type, irsp->ulpCommand, | |
2441 | irsp->ulpStatus, | |
2442 | irsp->ulpIoTag, | |
2443 | irsp->ulpContext); | |
2444 | } | |
2445 | break; | |
2446 | } | |
2447 | ||
2448 | /* | |
2449 | * The response IOCB has been processed. Update the ring | |
2450 | * pointer in SLIM. If the port response put pointer has not | |
2451 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
2452 | * response put pointer. | |
2453 | */ | |
2454 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); | |
2455 | ||
2456 | if (pring->rspidx == portRspPut) | |
2457 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2458 | } | |
2459 | ||
2460 | ha_copy = readl(phba->HAregaddr); | |
2461 | ha_copy >>= (LPFC_FCP_RING * 4); | |
2462 | ||
2463 | if ((rsp_cmpl > 0) && (ha_copy & HA_R0RE_REQ)) { | |
2464 | spin_lock_irqsave(&phba->hbalock, iflags); | |
2465 | pring->stats.iocb_rsp_full++; | |
2466 | status = ((CA_R0ATT | CA_R0RE_RSP) << (LPFC_FCP_RING * 4)); | |
2467 | writel(status, phba->CAregaddr); | |
2468 | readl(phba->CAregaddr); | |
2469 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
2470 | } | |
2471 | if ((ha_copy & HA_R0CE_RSP) && | |
2472 | (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2473 | spin_lock_irqsave(&phba->hbalock, iflags); | |
2474 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2475 | pring->stats.iocb_cmd_empty++; | |
2476 | ||
2477 | /* Force update of the local copy of cmdGetInx */ | |
2478 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2479 | lpfc_sli_resume_iocb(phba, pring); | |
2480 | ||
2481 | if ((pring->lpfc_sli_cmd_available)) | |
2482 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2483 | ||
2484 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
2485 | } | |
2486 | ||
2487 | return; | |
2488 | } | |
2489 | ||
2490 | /** | |
2491 | * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring | |
2492 | * @phba: Pointer to HBA context object. | |
2493 | * @pring: Pointer to driver SLI ring object. | |
2494 | * @mask: Host attention register mask for this ring. | |
2495 | * | |
2496 | * This function is called from the interrupt context when there is a ring | |
2497 | * event for the fcp ring. The caller does not hold any lock. | |
2498 | * The function processes each response iocb in the response ring until it | |
2499 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
2500 | * LE bit set. The function will call the completion handler of the command iocb | |
2501 | * if the response iocb indicates a completion for a command iocb or it is | |
2502 | * an abort completion. The function will call lpfc_sli_process_unsol_iocb | |
2503 | * function if this is an unsolicited iocb. | |
2504 | * This routine presumes LPFC_FCP_RING handling and doesn't bother | |
2505 | * to check it explicitly. This function always returns 1. | |
2506 | **/ | |
2507 | static int | |
2508 | lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba, | |
2509 | struct lpfc_sli_ring *pring, uint32_t mask) | |
2510 | { | |
2511 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; | |
2512 | IOCB_t *irsp = NULL; | |
2513 | IOCB_t *entry = NULL; | |
2514 | struct lpfc_iocbq *cmdiocbq = NULL; | |
2515 | struct lpfc_iocbq rspiocbq; | |
2516 | uint32_t status; | |
2517 | uint32_t portRspPut, portRspMax; | |
2518 | int rc = 1; | |
2519 | lpfc_iocb_type type; | |
2520 | unsigned long iflag; | |
2521 | uint32_t rsp_cmpl = 0; | |
2522 | ||
2523 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2524 | pring->stats.iocb_event++; | |
2525 | ||
2526 | /* | |
2527 | * The next available response entry should never exceed the maximum | |
2528 | * entries. If it does, treat it as an adapter hardware error. | |
2529 | */ | |
2530 | portRspMax = pring->numRiocb; | |
2531 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2532 | if (unlikely(portRspPut >= portRspMax)) { | |
2533 | lpfc_sli_rsp_pointers_error(phba, pring); | |
2534 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2535 | return 1; | |
2536 | } | |
2537 | ||
2538 | rmb(); | |
2539 | while (pring->rspidx != portRspPut) { | |
2540 | /* | |
2541 | * Fetch an entry off the ring and copy it into a local data | |
2542 | * structure. The copy involves a byte-swap since the | |
2543 | * network byte order and pci byte orders are different. | |
2544 | */ | |
2545 | entry = lpfc_resp_iocb(phba, pring); | |
2546 | phba->last_completion_time = jiffies; | |
2547 | ||
2548 | if (++pring->rspidx >= portRspMax) | |
2549 | pring->rspidx = 0; | |
2550 | ||
2551 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, | |
2552 | (uint32_t *) &rspiocbq.iocb, | |
2553 | phba->iocb_rsp_size); | |
2554 | INIT_LIST_HEAD(&(rspiocbq.list)); | |
2555 | irsp = &rspiocbq.iocb; | |
2556 | ||
2557 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); | |
2558 | pring->stats.iocb_rsp++; | |
2559 | rsp_cmpl++; | |
2560 | ||
2561 | if (unlikely(irsp->ulpStatus)) { | |
2562 | /* | |
2563 | * If resource errors reported from HBA, reduce | |
2564 | * queuedepths of the SCSI device. | |
2565 | */ | |
2566 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
2567 | (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { | |
2568 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2569 | phba->lpfc_rampdown_queue_depth(phba); | |
2570 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2571 | } | |
2572 | ||
2573 | /* Rsp ring <ringno> error: IOCB */ | |
2574 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
2575 | "0336 Rsp Ring %d error: IOCB Data: " | |
2576 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", | |
2577 | pring->ringno, | |
2578 | irsp->un.ulpWord[0], | |
2579 | irsp->un.ulpWord[1], | |
2580 | irsp->un.ulpWord[2], | |
2581 | irsp->un.ulpWord[3], | |
2582 | irsp->un.ulpWord[4], | |
2583 | irsp->un.ulpWord[5], | |
2584 | *(uint32_t *)&irsp->un1, | |
2585 | *((uint32_t *)&irsp->un1 + 1)); | |
2586 | } | |
2587 | ||
2588 | switch (type) { | |
2589 | case LPFC_ABORT_IOCB: | |
2590 | case LPFC_SOL_IOCB: | |
2591 | /* | |
2592 | * Idle exchange closed via ABTS from port. No iocb | |
2593 | * resources need to be recovered. | |
2594 | */ | |
2595 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
2596 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
2597 | "0333 IOCB cmd 0x%x" | |
2598 | " processed. Skipping" | |
2599 | " completion\n", | |
2600 | irsp->ulpCommand); | |
2601 | break; | |
2602 | } | |
2603 | ||
2604 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, | |
2605 | &rspiocbq); | |
2606 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { | |
2607 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { | |
2608 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
2609 | &rspiocbq); | |
2610 | } else { | |
2611 | spin_unlock_irqrestore(&phba->hbalock, | |
2612 | iflag); | |
2613 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
2614 | &rspiocbq); | |
2615 | spin_lock_irqsave(&phba->hbalock, | |
2616 | iflag); | |
2617 | } | |
2618 | } | |
2619 | break; | |
2620 | case LPFC_UNSOL_IOCB: | |
2621 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2622 | lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq); | |
2623 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2624 | break; | |
2625 | default: | |
2626 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
2627 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
2628 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
2629 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
2630 | MAX_MSG_DATA); | |
2631 | dev_warn(&((phba->pcidev)->dev), | |
2632 | "lpfc%d: %s\n", | |
2633 | phba->brd_no, adaptermsg); | |
2634 | } else { | |
2635 | /* Unknown IOCB command */ | |
2636 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2637 | "0334 Unknown IOCB command " | |
2638 | "Data: x%x, x%x x%x x%x x%x\n", | |
2639 | type, irsp->ulpCommand, | |
2640 | irsp->ulpStatus, | |
2641 | irsp->ulpIoTag, | |
2642 | irsp->ulpContext); | |
2643 | } | |
2644 | break; | |
2645 | } | |
2646 | ||
2647 | /* | |
2648 | * The response IOCB has been processed. Update the ring | |
2649 | * pointer in SLIM. If the port response put pointer has not | |
2650 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
2651 | * response put pointer. | |
2652 | */ | |
2653 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); | |
2654 | ||
2655 | if (pring->rspidx == portRspPut) | |
2656 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2657 | } | |
2658 | ||
2659 | if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) { | |
2660 | pring->stats.iocb_rsp_full++; | |
2661 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
2662 | writel(status, phba->CAregaddr); | |
2663 | readl(phba->CAregaddr); | |
2664 | } | |
2665 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2666 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2667 | pring->stats.iocb_cmd_empty++; | |
2668 | ||
2669 | /* Force update of the local copy of cmdGetInx */ | |
2670 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2671 | lpfc_sli_resume_iocb(phba, pring); | |
2672 | ||
2673 | if ((pring->lpfc_sli_cmd_available)) | |
2674 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2675 | ||
2676 | } | |
2677 | ||
2678 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2679 | return rc; | |
2680 | } | |
2681 | ||
2682 | /** | |
2683 | * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb | |
2684 | * @phba: Pointer to HBA context object. | |
2685 | * @pring: Pointer to driver SLI ring object. | |
2686 | * @rspiocbp: Pointer to driver response IOCB object. | |
2687 | * | |
2688 | * This function is called from the worker thread when there is a slow-path | |
2689 | * response IOCB to process. This function chains all the response iocbs until | |
2690 | * seeing the iocb with the LE bit set. The function will call | |
2691 | * lpfc_sli_process_sol_iocb function if the response iocb indicates a | |
2692 | * completion of a command iocb. The function will call the | |
2693 | * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb. | |
2694 | * The function frees the resources or calls the completion handler if this | |
2695 | * iocb is an abort completion. The function returns NULL when the response | |
2696 | * iocb has the LE bit set and all the chained iocbs are processed, otherwise | |
2697 | * this function shall chain the iocb on to the iocb_continueq and return the | |
2698 | * response iocb passed in. | |
2699 | **/ | |
2700 | static struct lpfc_iocbq * | |
2701 | lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2702 | struct lpfc_iocbq *rspiocbp) | |
2703 | { | |
2704 | struct lpfc_iocbq *saveq; | |
2705 | struct lpfc_iocbq *cmdiocbp; | |
2706 | struct lpfc_iocbq *next_iocb; | |
2707 | IOCB_t *irsp = NULL; | |
2708 | uint32_t free_saveq; | |
2709 | uint8_t iocb_cmd_type; | |
2710 | lpfc_iocb_type type; | |
2711 | unsigned long iflag; | |
2712 | int rc; | |
2713 | ||
2714 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2715 | /* First add the response iocb to the countinueq list */ | |
2716 | list_add_tail(&rspiocbp->list, &(pring->iocb_continueq)); | |
2717 | pring->iocb_continueq_cnt++; | |
2718 | ||
2719 | /* Now, determine whetehr the list is completed for processing */ | |
2720 | irsp = &rspiocbp->iocb; | |
2721 | if (irsp->ulpLe) { | |
2722 | /* | |
2723 | * By default, the driver expects to free all resources | |
2724 | * associated with this iocb completion. | |
2725 | */ | |
2726 | free_saveq = 1; | |
2727 | saveq = list_get_first(&pring->iocb_continueq, | |
2728 | struct lpfc_iocbq, list); | |
2729 | irsp = &(saveq->iocb); | |
2730 | list_del_init(&pring->iocb_continueq); | |
2731 | pring->iocb_continueq_cnt = 0; | |
2732 | ||
2733 | pring->stats.iocb_rsp++; | |
2734 | ||
2735 | /* | |
2736 | * If resource errors reported from HBA, reduce | |
2737 | * queuedepths of the SCSI device. | |
2738 | */ | |
2739 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
2740 | (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { | |
2741 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2742 | phba->lpfc_rampdown_queue_depth(phba); | |
2743 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2744 | } | |
2745 | ||
2746 | if (irsp->ulpStatus) { | |
2747 | /* Rsp ring <ringno> error: IOCB */ | |
2748 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
2749 | "0328 Rsp Ring %d error: " | |
2750 | "IOCB Data: " | |
2751 | "x%x x%x x%x x%x " | |
2752 | "x%x x%x x%x x%x " | |
2753 | "x%x x%x x%x x%x " | |
2754 | "x%x x%x x%x x%x\n", | |
2755 | pring->ringno, | |
2756 | irsp->un.ulpWord[0], | |
2757 | irsp->un.ulpWord[1], | |
2758 | irsp->un.ulpWord[2], | |
2759 | irsp->un.ulpWord[3], | |
2760 | irsp->un.ulpWord[4], | |
2761 | irsp->un.ulpWord[5], | |
2762 | *(((uint32_t *) irsp) + 6), | |
2763 | *(((uint32_t *) irsp) + 7), | |
2764 | *(((uint32_t *) irsp) + 8), | |
2765 | *(((uint32_t *) irsp) + 9), | |
2766 | *(((uint32_t *) irsp) + 10), | |
2767 | *(((uint32_t *) irsp) + 11), | |
2768 | *(((uint32_t *) irsp) + 12), | |
2769 | *(((uint32_t *) irsp) + 13), | |
2770 | *(((uint32_t *) irsp) + 14), | |
2771 | *(((uint32_t *) irsp) + 15)); | |
2772 | } | |
2773 | ||
2774 | /* | |
2775 | * Fetch the IOCB command type and call the correct completion | |
2776 | * routine. Solicited and Unsolicited IOCBs on the ELS ring | |
2777 | * get freed back to the lpfc_iocb_list by the discovery | |
2778 | * kernel thread. | |
2779 | */ | |
2780 | iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK; | |
2781 | type = lpfc_sli_iocb_cmd_type(iocb_cmd_type); | |
2782 | switch (type) { | |
2783 | case LPFC_SOL_IOCB: | |
2784 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2785 | rc = lpfc_sli_process_sol_iocb(phba, pring, saveq); | |
2786 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2787 | break; | |
2788 | ||
2789 | case LPFC_UNSOL_IOCB: | |
2790 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2791 | rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq); | |
2792 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2793 | if (!rc) | |
2794 | free_saveq = 0; | |
2795 | break; | |
2796 | ||
2797 | case LPFC_ABORT_IOCB: | |
2798 | cmdiocbp = NULL; | |
2799 | if (irsp->ulpCommand != CMD_XRI_ABORTED_CX) | |
2800 | cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, | |
2801 | saveq); | |
2802 | if (cmdiocbp) { | |
2803 | /* Call the specified completion routine */ | |
2804 | if (cmdiocbp->iocb_cmpl) { | |
2805 | spin_unlock_irqrestore(&phba->hbalock, | |
2806 | iflag); | |
2807 | (cmdiocbp->iocb_cmpl)(phba, cmdiocbp, | |
2808 | saveq); | |
2809 | spin_lock_irqsave(&phba->hbalock, | |
2810 | iflag); | |
2811 | } else | |
2812 | __lpfc_sli_release_iocbq(phba, | |
2813 | cmdiocbp); | |
2814 | } | |
2815 | break; | |
2816 | ||
2817 | case LPFC_UNKNOWN_IOCB: | |
2818 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
2819 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
2820 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
2821 | memcpy(&adaptermsg[0], (uint8_t *)irsp, | |
2822 | MAX_MSG_DATA); | |
2823 | dev_warn(&((phba->pcidev)->dev), | |
2824 | "lpfc%d: %s\n", | |
2825 | phba->brd_no, adaptermsg); | |
2826 | } else { | |
2827 | /* Unknown IOCB command */ | |
2828 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2829 | "0335 Unknown IOCB " | |
2830 | "command Data: x%x " | |
2831 | "x%x x%x x%x\n", | |
2832 | irsp->ulpCommand, | |
2833 | irsp->ulpStatus, | |
2834 | irsp->ulpIoTag, | |
2835 | irsp->ulpContext); | |
2836 | } | |
2837 | break; | |
2838 | } | |
2839 | ||
2840 | if (free_saveq) { | |
2841 | list_for_each_entry_safe(rspiocbp, next_iocb, | |
2842 | &saveq->list, list) { | |
2843 | list_del(&rspiocbp->list); | |
2844 | __lpfc_sli_release_iocbq(phba, rspiocbp); | |
2845 | } | |
2846 | __lpfc_sli_release_iocbq(phba, saveq); | |
2847 | } | |
2848 | rspiocbp = NULL; | |
2849 | } | |
2850 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2851 | return rspiocbp; | |
2852 | } | |
2853 | ||
2854 | /** | |
2855 | * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs | |
2856 | * @phba: Pointer to HBA context object. | |
2857 | * @pring: Pointer to driver SLI ring object. | |
2858 | * @mask: Host attention register mask for this ring. | |
2859 | * | |
2860 | * This routine wraps the actual slow_ring event process routine from the | |
2861 | * API jump table function pointer from the lpfc_hba struct. | |
2862 | **/ | |
2863 | void | |
2864 | lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba, | |
2865 | struct lpfc_sli_ring *pring, uint32_t mask) | |
2866 | { | |
2867 | phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask); | |
2868 | } | |
2869 | ||
2870 | /** | |
2871 | * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings | |
2872 | * @phba: Pointer to HBA context object. | |
2873 | * @pring: Pointer to driver SLI ring object. | |
2874 | * @mask: Host attention register mask for this ring. | |
2875 | * | |
2876 | * This function is called from the worker thread when there is a ring event | |
2877 | * for non-fcp rings. The caller does not hold any lock. The function will | |
2878 | * remove each response iocb in the response ring and calls the handle | |
2879 | * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it. | |
2880 | **/ | |
2881 | static void | |
2882 | lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba, | |
2883 | struct lpfc_sli_ring *pring, uint32_t mask) | |
2884 | { | |
2885 | struct lpfc_pgp *pgp; | |
2886 | IOCB_t *entry; | |
2887 | IOCB_t *irsp = NULL; | |
2888 | struct lpfc_iocbq *rspiocbp = NULL; | |
2889 | uint32_t portRspPut, portRspMax; | |
2890 | unsigned long iflag; | |
2891 | uint32_t status; | |
2892 | ||
2893 | pgp = &phba->port_gp[pring->ringno]; | |
2894 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2895 | pring->stats.iocb_event++; | |
2896 | ||
2897 | /* | |
2898 | * The next available response entry should never exceed the maximum | |
2899 | * entries. If it does, treat it as an adapter hardware error. | |
2900 | */ | |
2901 | portRspMax = pring->numRiocb; | |
2902 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2903 | if (portRspPut >= portRspMax) { | |
2904 | /* | |
2905 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger than | |
2906 | * rsp ring <portRspMax> | |
2907 | */ | |
2908 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2909 | "0303 Ring %d handler: portRspPut %d " | |
2910 | "is bigger than rsp ring %d\n", | |
2911 | pring->ringno, portRspPut, portRspMax); | |
2912 | ||
2913 | phba->link_state = LPFC_HBA_ERROR; | |
2914 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2915 | ||
2916 | phba->work_hs = HS_FFER3; | |
2917 | lpfc_handle_eratt(phba); | |
2918 | ||
2919 | return; | |
2920 | } | |
2921 | ||
2922 | rmb(); | |
2923 | while (pring->rspidx != portRspPut) { | |
2924 | /* | |
2925 | * Build a completion list and call the appropriate handler. | |
2926 | * The process is to get the next available response iocb, get | |
2927 | * a free iocb from the list, copy the response data into the | |
2928 | * free iocb, insert to the continuation list, and update the | |
2929 | * next response index to slim. This process makes response | |
2930 | * iocb's in the ring available to DMA as fast as possible but | |
2931 | * pays a penalty for a copy operation. Since the iocb is | |
2932 | * only 32 bytes, this penalty is considered small relative to | |
2933 | * the PCI reads for register values and a slim write. When | |
2934 | * the ulpLe field is set, the entire Command has been | |
2935 | * received. | |
2936 | */ | |
2937 | entry = lpfc_resp_iocb(phba, pring); | |
2938 | ||
2939 | phba->last_completion_time = jiffies; | |
2940 | rspiocbp = __lpfc_sli_get_iocbq(phba); | |
2941 | if (rspiocbp == NULL) { | |
2942 | printk(KERN_ERR "%s: out of buffers! Failing " | |
2943 | "completion.\n", __func__); | |
2944 | break; | |
2945 | } | |
2946 | ||
2947 | lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb, | |
2948 | phba->iocb_rsp_size); | |
2949 | irsp = &rspiocbp->iocb; | |
2950 | ||
2951 | if (++pring->rspidx >= portRspMax) | |
2952 | pring->rspidx = 0; | |
2953 | ||
2954 | if (pring->ringno == LPFC_ELS_RING) { | |
2955 | lpfc_debugfs_slow_ring_trc(phba, | |
2956 | "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x", | |
2957 | *(((uint32_t *) irsp) + 4), | |
2958 | *(((uint32_t *) irsp) + 6), | |
2959 | *(((uint32_t *) irsp) + 7)); | |
2960 | } | |
2961 | ||
2962 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); | |
2963 | ||
2964 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2965 | /* Handle the response IOCB */ | |
2966 | rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp); | |
2967 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2968 | ||
2969 | /* | |
2970 | * If the port response put pointer has not been updated, sync | |
2971 | * the pgp->rspPutInx in the MAILBOX_tand fetch the new port | |
2972 | * response put pointer. | |
2973 | */ | |
2974 | if (pring->rspidx == portRspPut) { | |
2975 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2976 | } | |
2977 | } /* while (pring->rspidx != portRspPut) */ | |
2978 | ||
2979 | if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) { | |
2980 | /* At least one response entry has been freed */ | |
2981 | pring->stats.iocb_rsp_full++; | |
2982 | /* SET RxRE_RSP in Chip Att register */ | |
2983 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
2984 | writel(status, phba->CAregaddr); | |
2985 | readl(phba->CAregaddr); /* flush */ | |
2986 | } | |
2987 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2988 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2989 | pring->stats.iocb_cmd_empty++; | |
2990 | ||
2991 | /* Force update of the local copy of cmdGetInx */ | |
2992 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2993 | lpfc_sli_resume_iocb(phba, pring); | |
2994 | ||
2995 | if ((pring->lpfc_sli_cmd_available)) | |
2996 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2997 | ||
2998 | } | |
2999 | ||
3000 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
3001 | return; | |
3002 | } | |
3003 | ||
3004 | /** | |
3005 | * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events | |
3006 | * @phba: Pointer to HBA context object. | |
3007 | * @pring: Pointer to driver SLI ring object. | |
3008 | * @mask: Host attention register mask for this ring. | |
3009 | * | |
3010 | * This function is called from the worker thread when there is a pending | |
3011 | * ELS response iocb on the driver internal slow-path response iocb worker | |
3012 | * queue. The caller does not hold any lock. The function will remove each | |
3013 | * response iocb from the response worker queue and calls the handle | |
3014 | * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it. | |
3015 | **/ | |
3016 | static void | |
3017 | lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba, | |
3018 | struct lpfc_sli_ring *pring, uint32_t mask) | |
3019 | { | |
3020 | struct lpfc_iocbq *irspiocbq; | |
3021 | unsigned long iflag; | |
3022 | ||
3023 | while (!list_empty(&phba->sli4_hba.sp_rspiocb_work_queue)) { | |
3024 | /* Get the response iocb from the head of work queue */ | |
3025 | spin_lock_irqsave(&phba->hbalock, iflag); | |
3026 | list_remove_head(&phba->sli4_hba.sp_rspiocb_work_queue, | |
3027 | irspiocbq, struct lpfc_iocbq, list); | |
3028 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
3029 | /* Process the response iocb */ | |
3030 | lpfc_sli_sp_handle_rspiocb(phba, pring, irspiocbq); | |
3031 | } | |
3032 | } | |
3033 | ||
3034 | /** | |
3035 | * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring | |
3036 | * @phba: Pointer to HBA context object. | |
3037 | * @pring: Pointer to driver SLI ring object. | |
3038 | * | |
3039 | * This function aborts all iocbs in the given ring and frees all the iocb | |
3040 | * objects in txq. This function issues an abort iocb for all the iocb commands | |
3041 | * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before | |
3042 | * the return of this function. The caller is not required to hold any locks. | |
3043 | **/ | |
3044 | void | |
3045 | lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
3046 | { | |
3047 | LIST_HEAD(completions); | |
3048 | struct lpfc_iocbq *iocb, *next_iocb; | |
3049 | ||
3050 | if (pring->ringno == LPFC_ELS_RING) { | |
3051 | lpfc_fabric_abort_hba(phba); | |
3052 | } | |
3053 | ||
3054 | /* Error everything on txq and txcmplq | |
3055 | * First do the txq. | |
3056 | */ | |
3057 | spin_lock_irq(&phba->hbalock); | |
3058 | list_splice_init(&pring->txq, &completions); | |
3059 | pring->txq_cnt = 0; | |
3060 | ||
3061 | /* Next issue ABTS for everything on the txcmplq */ | |
3062 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) | |
3063 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
3064 | ||
3065 | spin_unlock_irq(&phba->hbalock); | |
3066 | ||
3067 | /* Cancel all the IOCBs from the completions list */ | |
3068 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
3069 | IOERR_SLI_ABORTED); | |
3070 | } | |
3071 | ||
3072 | /** | |
3073 | * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring | |
3074 | * @phba: Pointer to HBA context object. | |
3075 | * | |
3076 | * This function flushes all iocbs in the fcp ring and frees all the iocb | |
3077 | * objects in txq and txcmplq. This function will not issue abort iocbs | |
3078 | * for all the iocb commands in txcmplq, they will just be returned with | |
3079 | * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI | |
3080 | * slot has been permanently disabled. | |
3081 | **/ | |
3082 | void | |
3083 | lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba) | |
3084 | { | |
3085 | LIST_HEAD(txq); | |
3086 | LIST_HEAD(txcmplq); | |
3087 | struct lpfc_sli *psli = &phba->sli; | |
3088 | struct lpfc_sli_ring *pring; | |
3089 | ||
3090 | /* Currently, only one fcp ring */ | |
3091 | pring = &psli->ring[psli->fcp_ring]; | |
3092 | ||
3093 | spin_lock_irq(&phba->hbalock); | |
3094 | /* Retrieve everything on txq */ | |
3095 | list_splice_init(&pring->txq, &txq); | |
3096 | pring->txq_cnt = 0; | |
3097 | ||
3098 | /* Retrieve everything on the txcmplq */ | |
3099 | list_splice_init(&pring->txcmplq, &txcmplq); | |
3100 | pring->txcmplq_cnt = 0; | |
3101 | spin_unlock_irq(&phba->hbalock); | |
3102 | ||
3103 | /* Flush the txq */ | |
3104 | lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT, | |
3105 | IOERR_SLI_DOWN); | |
3106 | ||
3107 | /* Flush the txcmpq */ | |
3108 | lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT, | |
3109 | IOERR_SLI_DOWN); | |
3110 | } | |
3111 | ||
3112 | /** | |
3113 | * lpfc_sli_brdready_s3 - Check for sli3 host ready status | |
3114 | * @phba: Pointer to HBA context object. | |
3115 | * @mask: Bit mask to be checked. | |
3116 | * | |
3117 | * This function reads the host status register and compares | |
3118 | * with the provided bit mask to check if HBA completed | |
3119 | * the restart. This function will wait in a loop for the | |
3120 | * HBA to complete restart. If the HBA does not restart within | |
3121 | * 15 iterations, the function will reset the HBA again. The | |
3122 | * function returns 1 when HBA fail to restart otherwise returns | |
3123 | * zero. | |
3124 | **/ | |
3125 | static int | |
3126 | lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask) | |
3127 | { | |
3128 | uint32_t status; | |
3129 | int i = 0; | |
3130 | int retval = 0; | |
3131 | ||
3132 | /* Read the HBA Host Status Register */ | |
3133 | status = readl(phba->HSregaddr); | |
3134 | ||
3135 | /* | |
3136 | * Check status register every 100ms for 5 retries, then every | |
3137 | * 500ms for 5, then every 2.5 sec for 5, then reset board and | |
3138 | * every 2.5 sec for 4. | |
3139 | * Break our of the loop if errors occurred during init. | |
3140 | */ | |
3141 | while (((status & mask) != mask) && | |
3142 | !(status & HS_FFERM) && | |
3143 | i++ < 20) { | |
3144 | ||
3145 | if (i <= 5) | |
3146 | msleep(10); | |
3147 | else if (i <= 10) | |
3148 | msleep(500); | |
3149 | else | |
3150 | msleep(2500); | |
3151 | ||
3152 | if (i == 15) { | |
3153 | /* Do post */ | |
3154 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; | |
3155 | lpfc_sli_brdrestart(phba); | |
3156 | } | |
3157 | /* Read the HBA Host Status Register */ | |
3158 | status = readl(phba->HSregaddr); | |
3159 | } | |
3160 | ||
3161 | /* Check to see if any errors occurred during init */ | |
3162 | if ((status & HS_FFERM) || (i >= 20)) { | |
3163 | phba->link_state = LPFC_HBA_ERROR; | |
3164 | retval = 1; | |
3165 | } | |
3166 | ||
3167 | return retval; | |
3168 | } | |
3169 | ||
3170 | /** | |
3171 | * lpfc_sli_brdready_s4 - Check for sli4 host ready status | |
3172 | * @phba: Pointer to HBA context object. | |
3173 | * @mask: Bit mask to be checked. | |
3174 | * | |
3175 | * This function checks the host status register to check if HBA is | |
3176 | * ready. This function will wait in a loop for the HBA to be ready | |
3177 | * If the HBA is not ready , the function will will reset the HBA PCI | |
3178 | * function again. The function returns 1 when HBA fail to be ready | |
3179 | * otherwise returns zero. | |
3180 | **/ | |
3181 | static int | |
3182 | lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask) | |
3183 | { | |
3184 | uint32_t status; | |
3185 | int retval = 0; | |
3186 | ||
3187 | /* Read the HBA Host Status Register */ | |
3188 | status = lpfc_sli4_post_status_check(phba); | |
3189 | ||
3190 | if (status) { | |
3191 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; | |
3192 | lpfc_sli_brdrestart(phba); | |
3193 | status = lpfc_sli4_post_status_check(phba); | |
3194 | } | |
3195 | ||
3196 | /* Check to see if any errors occurred during init */ | |
3197 | if (status) { | |
3198 | phba->link_state = LPFC_HBA_ERROR; | |
3199 | retval = 1; | |
3200 | } else | |
3201 | phba->sli4_hba.intr_enable = 0; | |
3202 | ||
3203 | return retval; | |
3204 | } | |
3205 | ||
3206 | /** | |
3207 | * lpfc_sli_brdready - Wrapper func for checking the hba readyness | |
3208 | * @phba: Pointer to HBA context object. | |
3209 | * @mask: Bit mask to be checked. | |
3210 | * | |
3211 | * This routine wraps the actual SLI3 or SLI4 hba readyness check routine | |
3212 | * from the API jump table function pointer from the lpfc_hba struct. | |
3213 | **/ | |
3214 | int | |
3215 | lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask) | |
3216 | { | |
3217 | return phba->lpfc_sli_brdready(phba, mask); | |
3218 | } | |
3219 | ||
3220 | #define BARRIER_TEST_PATTERN (0xdeadbeef) | |
3221 | ||
3222 | /** | |
3223 | * lpfc_reset_barrier - Make HBA ready for HBA reset | |
3224 | * @phba: Pointer to HBA context object. | |
3225 | * | |
3226 | * This function is called before resetting an HBA. This | |
3227 | * function requests HBA to quiesce DMAs before a reset. | |
3228 | **/ | |
3229 | void lpfc_reset_barrier(struct lpfc_hba *phba) | |
3230 | { | |
3231 | uint32_t __iomem *resp_buf; | |
3232 | uint32_t __iomem *mbox_buf; | |
3233 | volatile uint32_t mbox; | |
3234 | uint32_t hc_copy; | |
3235 | int i; | |
3236 | uint8_t hdrtype; | |
3237 | ||
3238 | pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype); | |
3239 | if (hdrtype != 0x80 || | |
3240 | (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID && | |
3241 | FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID)) | |
3242 | return; | |
3243 | ||
3244 | /* | |
3245 | * Tell the other part of the chip to suspend temporarily all | |
3246 | * its DMA activity. | |
3247 | */ | |
3248 | resp_buf = phba->MBslimaddr; | |
3249 | ||
3250 | /* Disable the error attention */ | |
3251 | hc_copy = readl(phba->HCregaddr); | |
3252 | writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr); | |
3253 | readl(phba->HCregaddr); /* flush */ | |
3254 | phba->link_flag |= LS_IGNORE_ERATT; | |
3255 | ||
3256 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
3257 | /* Clear Chip error bit */ | |
3258 | writel(HA_ERATT, phba->HAregaddr); | |
3259 | phba->pport->stopped = 1; | |
3260 | } | |
3261 | ||
3262 | mbox = 0; | |
3263 | ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD; | |
3264 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP; | |
3265 | ||
3266 | writel(BARRIER_TEST_PATTERN, (resp_buf + 1)); | |
3267 | mbox_buf = phba->MBslimaddr; | |
3268 | writel(mbox, mbox_buf); | |
3269 | ||
3270 | for (i = 0; | |
3271 | readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++) | |
3272 | mdelay(1); | |
3273 | ||
3274 | if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) { | |
3275 | if (phba->sli.sli_flag & LPFC_SLI_ACTIVE || | |
3276 | phba->pport->stopped) | |
3277 | goto restore_hc; | |
3278 | else | |
3279 | goto clear_errat; | |
3280 | } | |
3281 | ||
3282 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST; | |
3283 | for (i = 0; readl(resp_buf) != mbox && i < 500; i++) | |
3284 | mdelay(1); | |
3285 | ||
3286 | clear_errat: | |
3287 | ||
3288 | while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500) | |
3289 | mdelay(1); | |
3290 | ||
3291 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
3292 | writel(HA_ERATT, phba->HAregaddr); | |
3293 | phba->pport->stopped = 1; | |
3294 | } | |
3295 | ||
3296 | restore_hc: | |
3297 | phba->link_flag &= ~LS_IGNORE_ERATT; | |
3298 | writel(hc_copy, phba->HCregaddr); | |
3299 | readl(phba->HCregaddr); /* flush */ | |
3300 | } | |
3301 | ||
3302 | /** | |
3303 | * lpfc_sli_brdkill - Issue a kill_board mailbox command | |
3304 | * @phba: Pointer to HBA context object. | |
3305 | * | |
3306 | * This function issues a kill_board mailbox command and waits for | |
3307 | * the error attention interrupt. This function is called for stopping | |
3308 | * the firmware processing. The caller is not required to hold any | |
3309 | * locks. This function calls lpfc_hba_down_post function to free | |
3310 | * any pending commands after the kill. The function will return 1 when it | |
3311 | * fails to kill the board else will return 0. | |
3312 | **/ | |
3313 | int | |
3314 | lpfc_sli_brdkill(struct lpfc_hba *phba) | |
3315 | { | |
3316 | struct lpfc_sli *psli; | |
3317 | LPFC_MBOXQ_t *pmb; | |
3318 | uint32_t status; | |
3319 | uint32_t ha_copy; | |
3320 | int retval; | |
3321 | int i = 0; | |
3322 | ||
3323 | psli = &phba->sli; | |
3324 | ||
3325 | /* Kill HBA */ | |
3326 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3327 | "0329 Kill HBA Data: x%x x%x\n", | |
3328 | phba->pport->port_state, psli->sli_flag); | |
3329 | ||
3330 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
3331 | if (!pmb) | |
3332 | return 1; | |
3333 | ||
3334 | /* Disable the error attention */ | |
3335 | spin_lock_irq(&phba->hbalock); | |
3336 | status = readl(phba->HCregaddr); | |
3337 | status &= ~HC_ERINT_ENA; | |
3338 | writel(status, phba->HCregaddr); | |
3339 | readl(phba->HCregaddr); /* flush */ | |
3340 | phba->link_flag |= LS_IGNORE_ERATT; | |
3341 | spin_unlock_irq(&phba->hbalock); | |
3342 | ||
3343 | lpfc_kill_board(phba, pmb); | |
3344 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
3345 | retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
3346 | ||
3347 | if (retval != MBX_SUCCESS) { | |
3348 | if (retval != MBX_BUSY) | |
3349 | mempool_free(pmb, phba->mbox_mem_pool); | |
3350 | spin_lock_irq(&phba->hbalock); | |
3351 | phba->link_flag &= ~LS_IGNORE_ERATT; | |
3352 | spin_unlock_irq(&phba->hbalock); | |
3353 | return 1; | |
3354 | } | |
3355 | ||
3356 | spin_lock_irq(&phba->hbalock); | |
3357 | psli->sli_flag &= ~LPFC_SLI_ACTIVE; | |
3358 | spin_unlock_irq(&phba->hbalock); | |
3359 | ||
3360 | mempool_free(pmb, phba->mbox_mem_pool); | |
3361 | ||
3362 | /* There is no completion for a KILL_BOARD mbox cmd. Check for an error | |
3363 | * attention every 100ms for 3 seconds. If we don't get ERATT after | |
3364 | * 3 seconds we still set HBA_ERROR state because the status of the | |
3365 | * board is now undefined. | |
3366 | */ | |
3367 | ha_copy = readl(phba->HAregaddr); | |
3368 | ||
3369 | while ((i++ < 30) && !(ha_copy & HA_ERATT)) { | |
3370 | mdelay(100); | |
3371 | ha_copy = readl(phba->HAregaddr); | |
3372 | } | |
3373 | ||
3374 | del_timer_sync(&psli->mbox_tmo); | |
3375 | if (ha_copy & HA_ERATT) { | |
3376 | writel(HA_ERATT, phba->HAregaddr); | |
3377 | phba->pport->stopped = 1; | |
3378 | } | |
3379 | spin_lock_irq(&phba->hbalock); | |
3380 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
3381 | psli->mbox_active = NULL; | |
3382 | phba->link_flag &= ~LS_IGNORE_ERATT; | |
3383 | spin_unlock_irq(&phba->hbalock); | |
3384 | ||
3385 | lpfc_hba_down_post(phba); | |
3386 | phba->link_state = LPFC_HBA_ERROR; | |
3387 | ||
3388 | return ha_copy & HA_ERATT ? 0 : 1; | |
3389 | } | |
3390 | ||
3391 | /** | |
3392 | * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA | |
3393 | * @phba: Pointer to HBA context object. | |
3394 | * | |
3395 | * This function resets the HBA by writing HC_INITFF to the control | |
3396 | * register. After the HBA resets, this function resets all the iocb ring | |
3397 | * indices. This function disables PCI layer parity checking during | |
3398 | * the reset. | |
3399 | * This function returns 0 always. | |
3400 | * The caller is not required to hold any locks. | |
3401 | **/ | |
3402 | int | |
3403 | lpfc_sli_brdreset(struct lpfc_hba *phba) | |
3404 | { | |
3405 | struct lpfc_sli *psli; | |
3406 | struct lpfc_sli_ring *pring; | |
3407 | uint16_t cfg_value; | |
3408 | int i; | |
3409 | ||
3410 | psli = &phba->sli; | |
3411 | ||
3412 | /* Reset HBA */ | |
3413 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3414 | "0325 Reset HBA Data: x%x x%x\n", | |
3415 | phba->pport->port_state, psli->sli_flag); | |
3416 | ||
3417 | /* perform board reset */ | |
3418 | phba->fc_eventTag = 0; | |
3419 | phba->pport->fc_myDID = 0; | |
3420 | phba->pport->fc_prevDID = 0; | |
3421 | ||
3422 | /* Turn off parity checking and serr during the physical reset */ | |
3423 | pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); | |
3424 | pci_write_config_word(phba->pcidev, PCI_COMMAND, | |
3425 | (cfg_value & | |
3426 | ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); | |
3427 | ||
3428 | psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA); | |
3429 | ||
3430 | /* Now toggle INITFF bit in the Host Control Register */ | |
3431 | writel(HC_INITFF, phba->HCregaddr); | |
3432 | mdelay(1); | |
3433 | readl(phba->HCregaddr); /* flush */ | |
3434 | writel(0, phba->HCregaddr); | |
3435 | readl(phba->HCregaddr); /* flush */ | |
3436 | ||
3437 | /* Restore PCI cmd register */ | |
3438 | pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value); | |
3439 | ||
3440 | /* Initialize relevant SLI info */ | |
3441 | for (i = 0; i < psli->num_rings; i++) { | |
3442 | pring = &psli->ring[i]; | |
3443 | pring->flag = 0; | |
3444 | pring->rspidx = 0; | |
3445 | pring->next_cmdidx = 0; | |
3446 | pring->local_getidx = 0; | |
3447 | pring->cmdidx = 0; | |
3448 | pring->missbufcnt = 0; | |
3449 | } | |
3450 | ||
3451 | phba->link_state = LPFC_WARM_START; | |
3452 | return 0; | |
3453 | } | |
3454 | ||
3455 | /** | |
3456 | * lpfc_sli4_brdreset - Reset a sli-4 HBA | |
3457 | * @phba: Pointer to HBA context object. | |
3458 | * | |
3459 | * This function resets a SLI4 HBA. This function disables PCI layer parity | |
3460 | * checking during resets the device. The caller is not required to hold | |
3461 | * any locks. | |
3462 | * | |
3463 | * This function returns 0 always. | |
3464 | **/ | |
3465 | int | |
3466 | lpfc_sli4_brdreset(struct lpfc_hba *phba) | |
3467 | { | |
3468 | struct lpfc_sli *psli = &phba->sli; | |
3469 | uint16_t cfg_value; | |
3470 | uint8_t qindx; | |
3471 | ||
3472 | /* Reset HBA */ | |
3473 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3474 | "0295 Reset HBA Data: x%x x%x\n", | |
3475 | phba->pport->port_state, psli->sli_flag); | |
3476 | ||
3477 | /* perform board reset */ | |
3478 | phba->fc_eventTag = 0; | |
3479 | phba->pport->fc_myDID = 0; | |
3480 | phba->pport->fc_prevDID = 0; | |
3481 | ||
3482 | /* Turn off parity checking and serr during the physical reset */ | |
3483 | pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); | |
3484 | pci_write_config_word(phba->pcidev, PCI_COMMAND, | |
3485 | (cfg_value & | |
3486 | ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); | |
3487 | ||
3488 | spin_lock_irq(&phba->hbalock); | |
3489 | psli->sli_flag &= ~(LPFC_PROCESS_LA); | |
3490 | phba->fcf.fcf_flag = 0; | |
3491 | /* Clean up the child queue list for the CQs */ | |
3492 | list_del_init(&phba->sli4_hba.mbx_wq->list); | |
3493 | list_del_init(&phba->sli4_hba.els_wq->list); | |
3494 | list_del_init(&phba->sli4_hba.hdr_rq->list); | |
3495 | list_del_init(&phba->sli4_hba.dat_rq->list); | |
3496 | list_del_init(&phba->sli4_hba.mbx_cq->list); | |
3497 | list_del_init(&phba->sli4_hba.els_cq->list); | |
3498 | list_del_init(&phba->sli4_hba.rxq_cq->list); | |
3499 | for (qindx = 0; qindx < phba->cfg_fcp_wq_count; qindx++) | |
3500 | list_del_init(&phba->sli4_hba.fcp_wq[qindx]->list); | |
3501 | for (qindx = 0; qindx < phba->cfg_fcp_eq_count; qindx++) | |
3502 | list_del_init(&phba->sli4_hba.fcp_cq[qindx]->list); | |
3503 | spin_unlock_irq(&phba->hbalock); | |
3504 | ||
3505 | /* Now physically reset the device */ | |
3506 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
3507 | "0389 Performing PCI function reset!\n"); | |
3508 | /* Perform FCoE PCI function reset */ | |
3509 | lpfc_pci_function_reset(phba); | |
3510 | ||
3511 | return 0; | |
3512 | } | |
3513 | ||
3514 | /** | |
3515 | * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba | |
3516 | * @phba: Pointer to HBA context object. | |
3517 | * | |
3518 | * This function is called in the SLI initialization code path to | |
3519 | * restart the HBA. The caller is not required to hold any lock. | |
3520 | * This function writes MBX_RESTART mailbox command to the SLIM and | |
3521 | * resets the HBA. At the end of the function, it calls lpfc_hba_down_post | |
3522 | * function to free any pending commands. The function enables | |
3523 | * POST only during the first initialization. The function returns zero. | |
3524 | * The function does not guarantee completion of MBX_RESTART mailbox | |
3525 | * command before the return of this function. | |
3526 | **/ | |
3527 | static int | |
3528 | lpfc_sli_brdrestart_s3(struct lpfc_hba *phba) | |
3529 | { | |
3530 | MAILBOX_t *mb; | |
3531 | struct lpfc_sli *psli; | |
3532 | volatile uint32_t word0; | |
3533 | void __iomem *to_slim; | |
3534 | ||
3535 | spin_lock_irq(&phba->hbalock); | |
3536 | ||
3537 | psli = &phba->sli; | |
3538 | ||
3539 | /* Restart HBA */ | |
3540 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3541 | "0337 Restart HBA Data: x%x x%x\n", | |
3542 | phba->pport->port_state, psli->sli_flag); | |
3543 | ||
3544 | word0 = 0; | |
3545 | mb = (MAILBOX_t *) &word0; | |
3546 | mb->mbxCommand = MBX_RESTART; | |
3547 | mb->mbxHc = 1; | |
3548 | ||
3549 | lpfc_reset_barrier(phba); | |
3550 | ||
3551 | to_slim = phba->MBslimaddr; | |
3552 | writel(*(uint32_t *) mb, to_slim); | |
3553 | readl(to_slim); /* flush */ | |
3554 | ||
3555 | /* Only skip post after fc_ffinit is completed */ | |
3556 | if (phba->pport->port_state) | |
3557 | word0 = 1; /* This is really setting up word1 */ | |
3558 | else | |
3559 | word0 = 0; /* This is really setting up word1 */ | |
3560 | to_slim = phba->MBslimaddr + sizeof (uint32_t); | |
3561 | writel(*(uint32_t *) mb, to_slim); | |
3562 | readl(to_slim); /* flush */ | |
3563 | ||
3564 | lpfc_sli_brdreset(phba); | |
3565 | phba->pport->stopped = 0; | |
3566 | phba->link_state = LPFC_INIT_START; | |
3567 | phba->hba_flag = 0; | |
3568 | spin_unlock_irq(&phba->hbalock); | |
3569 | ||
3570 | memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); | |
3571 | psli->stats_start = get_seconds(); | |
3572 | ||
3573 | /* Give the INITFF and Post time to settle. */ | |
3574 | mdelay(100); | |
3575 | ||
3576 | lpfc_hba_down_post(phba); | |
3577 | ||
3578 | return 0; | |
3579 | } | |
3580 | ||
3581 | /** | |
3582 | * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba | |
3583 | * @phba: Pointer to HBA context object. | |
3584 | * | |
3585 | * This function is called in the SLI initialization code path to restart | |
3586 | * a SLI4 HBA. The caller is not required to hold any lock. | |
3587 | * At the end of the function, it calls lpfc_hba_down_post function to | |
3588 | * free any pending commands. | |
3589 | **/ | |
3590 | static int | |
3591 | lpfc_sli_brdrestart_s4(struct lpfc_hba *phba) | |
3592 | { | |
3593 | struct lpfc_sli *psli = &phba->sli; | |
3594 | ||
3595 | ||
3596 | /* Restart HBA */ | |
3597 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3598 | "0296 Restart HBA Data: x%x x%x\n", | |
3599 | phba->pport->port_state, psli->sli_flag); | |
3600 | ||
3601 | lpfc_sli4_brdreset(phba); | |
3602 | ||
3603 | spin_lock_irq(&phba->hbalock); | |
3604 | phba->pport->stopped = 0; | |
3605 | phba->link_state = LPFC_INIT_START; | |
3606 | phba->hba_flag = 0; | |
3607 | spin_unlock_irq(&phba->hbalock); | |
3608 | ||
3609 | memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); | |
3610 | psli->stats_start = get_seconds(); | |
3611 | ||
3612 | lpfc_hba_down_post(phba); | |
3613 | ||
3614 | return 0; | |
3615 | } | |
3616 | ||
3617 | /** | |
3618 | * lpfc_sli_brdrestart - Wrapper func for restarting hba | |
3619 | * @phba: Pointer to HBA context object. | |
3620 | * | |
3621 | * This routine wraps the actual SLI3 or SLI4 hba restart routine from the | |
3622 | * API jump table function pointer from the lpfc_hba struct. | |
3623 | **/ | |
3624 | int | |
3625 | lpfc_sli_brdrestart(struct lpfc_hba *phba) | |
3626 | { | |
3627 | return phba->lpfc_sli_brdrestart(phba); | |
3628 | } | |
3629 | ||
3630 | /** | |
3631 | * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart | |
3632 | * @phba: Pointer to HBA context object. | |
3633 | * | |
3634 | * This function is called after a HBA restart to wait for successful | |
3635 | * restart of the HBA. Successful restart of the HBA is indicated by | |
3636 | * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15 | |
3637 | * iteration, the function will restart the HBA again. The function returns | |
3638 | * zero if HBA successfully restarted else returns negative error code. | |
3639 | **/ | |
3640 | static int | |
3641 | lpfc_sli_chipset_init(struct lpfc_hba *phba) | |
3642 | { | |
3643 | uint32_t status, i = 0; | |
3644 | ||
3645 | /* Read the HBA Host Status Register */ | |
3646 | status = readl(phba->HSregaddr); | |
3647 | ||
3648 | /* Check status register to see what current state is */ | |
3649 | i = 0; | |
3650 | while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) { | |
3651 | ||
3652 | /* Check every 100ms for 5 retries, then every 500ms for 5, then | |
3653 | * every 2.5 sec for 5, then reset board and every 2.5 sec for | |
3654 | * 4. | |
3655 | */ | |
3656 | if (i++ >= 20) { | |
3657 | /* Adapter failed to init, timeout, status reg | |
3658 | <status> */ | |
3659 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
3660 | "0436 Adapter failed to init, " | |
3661 | "timeout, status reg x%x, " | |
3662 | "FW Data: A8 x%x AC x%x\n", status, | |
3663 | readl(phba->MBslimaddr + 0xa8), | |
3664 | readl(phba->MBslimaddr + 0xac)); | |
3665 | phba->link_state = LPFC_HBA_ERROR; | |
3666 | return -ETIMEDOUT; | |
3667 | } | |
3668 | ||
3669 | /* Check to see if any errors occurred during init */ | |
3670 | if (status & HS_FFERM) { | |
3671 | /* ERROR: During chipset initialization */ | |
3672 | /* Adapter failed to init, chipset, status reg | |
3673 | <status> */ | |
3674 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
3675 | "0437 Adapter failed to init, " | |
3676 | "chipset, status reg x%x, " | |
3677 | "FW Data: A8 x%x AC x%x\n", status, | |
3678 | readl(phba->MBslimaddr + 0xa8), | |
3679 | readl(phba->MBslimaddr + 0xac)); | |
3680 | phba->link_state = LPFC_HBA_ERROR; | |
3681 | return -EIO; | |
3682 | } | |
3683 | ||
3684 | if (i <= 5) { | |
3685 | msleep(10); | |
3686 | } else if (i <= 10) { | |
3687 | msleep(500); | |
3688 | } else { | |
3689 | msleep(2500); | |
3690 | } | |
3691 | ||
3692 | if (i == 15) { | |
3693 | /* Do post */ | |
3694 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; | |
3695 | lpfc_sli_brdrestart(phba); | |
3696 | } | |
3697 | /* Read the HBA Host Status Register */ | |
3698 | status = readl(phba->HSregaddr); | |
3699 | } | |
3700 | ||
3701 | /* Check to see if any errors occurred during init */ | |
3702 | if (status & HS_FFERM) { | |
3703 | /* ERROR: During chipset initialization */ | |
3704 | /* Adapter failed to init, chipset, status reg <status> */ | |
3705 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
3706 | "0438 Adapter failed to init, chipset, " | |
3707 | "status reg x%x, " | |
3708 | "FW Data: A8 x%x AC x%x\n", status, | |
3709 | readl(phba->MBslimaddr + 0xa8), | |
3710 | readl(phba->MBslimaddr + 0xac)); | |
3711 | phba->link_state = LPFC_HBA_ERROR; | |
3712 | return -EIO; | |
3713 | } | |
3714 | ||
3715 | /* Clear all interrupt enable conditions */ | |
3716 | writel(0, phba->HCregaddr); | |
3717 | readl(phba->HCregaddr); /* flush */ | |
3718 | ||
3719 | /* setup host attn register */ | |
3720 | writel(0xffffffff, phba->HAregaddr); | |
3721 | readl(phba->HAregaddr); /* flush */ | |
3722 | return 0; | |
3723 | } | |
3724 | ||
3725 | /** | |
3726 | * lpfc_sli_hbq_count - Get the number of HBQs to be configured | |
3727 | * | |
3728 | * This function calculates and returns the number of HBQs required to be | |
3729 | * configured. | |
3730 | **/ | |
3731 | int | |
3732 | lpfc_sli_hbq_count(void) | |
3733 | { | |
3734 | return ARRAY_SIZE(lpfc_hbq_defs); | |
3735 | } | |
3736 | ||
3737 | /** | |
3738 | * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries | |
3739 | * | |
3740 | * This function adds the number of hbq entries in every HBQ to get | |
3741 | * the total number of hbq entries required for the HBA and returns | |
3742 | * the total count. | |
3743 | **/ | |
3744 | static int | |
3745 | lpfc_sli_hbq_entry_count(void) | |
3746 | { | |
3747 | int hbq_count = lpfc_sli_hbq_count(); | |
3748 | int count = 0; | |
3749 | int i; | |
3750 | ||
3751 | for (i = 0; i < hbq_count; ++i) | |
3752 | count += lpfc_hbq_defs[i]->entry_count; | |
3753 | return count; | |
3754 | } | |
3755 | ||
3756 | /** | |
3757 | * lpfc_sli_hbq_size - Calculate memory required for all hbq entries | |
3758 | * | |
3759 | * This function calculates amount of memory required for all hbq entries | |
3760 | * to be configured and returns the total memory required. | |
3761 | **/ | |
3762 | int | |
3763 | lpfc_sli_hbq_size(void) | |
3764 | { | |
3765 | return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry); | |
3766 | } | |
3767 | ||
3768 | /** | |
3769 | * lpfc_sli_hbq_setup - configure and initialize HBQs | |
3770 | * @phba: Pointer to HBA context object. | |
3771 | * | |
3772 | * This function is called during the SLI initialization to configure | |
3773 | * all the HBQs and post buffers to the HBQ. The caller is not | |
3774 | * required to hold any locks. This function will return zero if successful | |
3775 | * else it will return negative error code. | |
3776 | **/ | |
3777 | static int | |
3778 | lpfc_sli_hbq_setup(struct lpfc_hba *phba) | |
3779 | { | |
3780 | int hbq_count = lpfc_sli_hbq_count(); | |
3781 | LPFC_MBOXQ_t *pmb; | |
3782 | MAILBOX_t *pmbox; | |
3783 | uint32_t hbqno; | |
3784 | uint32_t hbq_entry_index; | |
3785 | ||
3786 | /* Get a Mailbox buffer to setup mailbox | |
3787 | * commands for HBA initialization | |
3788 | */ | |
3789 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
3790 | ||
3791 | if (!pmb) | |
3792 | return -ENOMEM; | |
3793 | ||
3794 | pmbox = &pmb->u.mb; | |
3795 | ||
3796 | /* Initialize the struct lpfc_sli_hbq structure for each hbq */ | |
3797 | phba->link_state = LPFC_INIT_MBX_CMDS; | |
3798 | phba->hbq_in_use = 1; | |
3799 | ||
3800 | hbq_entry_index = 0; | |
3801 | for (hbqno = 0; hbqno < hbq_count; ++hbqno) { | |
3802 | phba->hbqs[hbqno].next_hbqPutIdx = 0; | |
3803 | phba->hbqs[hbqno].hbqPutIdx = 0; | |
3804 | phba->hbqs[hbqno].local_hbqGetIdx = 0; | |
3805 | phba->hbqs[hbqno].entry_count = | |
3806 | lpfc_hbq_defs[hbqno]->entry_count; | |
3807 | lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno], | |
3808 | hbq_entry_index, pmb); | |
3809 | hbq_entry_index += phba->hbqs[hbqno].entry_count; | |
3810 | ||
3811 | if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { | |
3812 | /* Adapter failed to init, mbxCmd <cmd> CFG_RING, | |
3813 | mbxStatus <status>, ring <num> */ | |
3814 | ||
3815 | lpfc_printf_log(phba, KERN_ERR, | |
3816 | LOG_SLI | LOG_VPORT, | |
3817 | "1805 Adapter failed to init. " | |
3818 | "Data: x%x x%x x%x\n", | |
3819 | pmbox->mbxCommand, | |
3820 | pmbox->mbxStatus, hbqno); | |
3821 | ||
3822 | phba->link_state = LPFC_HBA_ERROR; | |
3823 | mempool_free(pmb, phba->mbox_mem_pool); | |
3824 | return ENXIO; | |
3825 | } | |
3826 | } | |
3827 | phba->hbq_count = hbq_count; | |
3828 | ||
3829 | mempool_free(pmb, phba->mbox_mem_pool); | |
3830 | ||
3831 | /* Initially populate or replenish the HBQs */ | |
3832 | for (hbqno = 0; hbqno < hbq_count; ++hbqno) | |
3833 | lpfc_sli_hbqbuf_init_hbqs(phba, hbqno); | |
3834 | return 0; | |
3835 | } | |
3836 | ||
3837 | /** | |
3838 | * lpfc_sli4_rb_setup - Initialize and post RBs to HBA | |
3839 | * @phba: Pointer to HBA context object. | |
3840 | * | |
3841 | * This function is called during the SLI initialization to configure | |
3842 | * all the HBQs and post buffers to the HBQ. The caller is not | |
3843 | * required to hold any locks. This function will return zero if successful | |
3844 | * else it will return negative error code. | |
3845 | **/ | |
3846 | static int | |
3847 | lpfc_sli4_rb_setup(struct lpfc_hba *phba) | |
3848 | { | |
3849 | phba->hbq_in_use = 1; | |
3850 | phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count; | |
3851 | phba->hbq_count = 1; | |
3852 | /* Initially populate or replenish the HBQs */ | |
3853 | lpfc_sli_hbqbuf_init_hbqs(phba, 0); | |
3854 | return 0; | |
3855 | } | |
3856 | ||
3857 | /** | |
3858 | * lpfc_sli_config_port - Issue config port mailbox command | |
3859 | * @phba: Pointer to HBA context object. | |
3860 | * @sli_mode: sli mode - 2/3 | |
3861 | * | |
3862 | * This function is called by the sli intialization code path | |
3863 | * to issue config_port mailbox command. This function restarts the | |
3864 | * HBA firmware and issues a config_port mailbox command to configure | |
3865 | * the SLI interface in the sli mode specified by sli_mode | |
3866 | * variable. The caller is not required to hold any locks. | |
3867 | * The function returns 0 if successful, else returns negative error | |
3868 | * code. | |
3869 | **/ | |
3870 | int | |
3871 | lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode) | |
3872 | { | |
3873 | LPFC_MBOXQ_t *pmb; | |
3874 | uint32_t resetcount = 0, rc = 0, done = 0; | |
3875 | ||
3876 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
3877 | if (!pmb) { | |
3878 | phba->link_state = LPFC_HBA_ERROR; | |
3879 | return -ENOMEM; | |
3880 | } | |
3881 | ||
3882 | phba->sli_rev = sli_mode; | |
3883 | while (resetcount < 2 && !done) { | |
3884 | spin_lock_irq(&phba->hbalock); | |
3885 | phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE; | |
3886 | spin_unlock_irq(&phba->hbalock); | |
3887 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; | |
3888 | lpfc_sli_brdrestart(phba); | |
3889 | rc = lpfc_sli_chipset_init(phba); | |
3890 | if (rc) | |
3891 | break; | |
3892 | ||
3893 | spin_lock_irq(&phba->hbalock); | |
3894 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
3895 | spin_unlock_irq(&phba->hbalock); | |
3896 | resetcount++; | |
3897 | ||
3898 | /* Call pre CONFIG_PORT mailbox command initialization. A | |
3899 | * value of 0 means the call was successful. Any other | |
3900 | * nonzero value is a failure, but if ERESTART is returned, | |
3901 | * the driver may reset the HBA and try again. | |
3902 | */ | |
3903 | rc = lpfc_config_port_prep(phba); | |
3904 | if (rc == -ERESTART) { | |
3905 | phba->link_state = LPFC_LINK_UNKNOWN; | |
3906 | continue; | |
3907 | } else if (rc) | |
3908 | break; | |
3909 | phba->link_state = LPFC_INIT_MBX_CMDS; | |
3910 | lpfc_config_port(phba, pmb); | |
3911 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
3912 | phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED | | |
3913 | LPFC_SLI3_HBQ_ENABLED | | |
3914 | LPFC_SLI3_CRP_ENABLED | | |
3915 | LPFC_SLI3_INB_ENABLED | | |
3916 | LPFC_SLI3_BG_ENABLED); | |
3917 | if (rc != MBX_SUCCESS) { | |
3918 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
3919 | "0442 Adapter failed to init, mbxCmd x%x " | |
3920 | "CONFIG_PORT, mbxStatus x%x Data: x%x\n", | |
3921 | pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0); | |
3922 | spin_lock_irq(&phba->hbalock); | |
3923 | phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE; | |
3924 | spin_unlock_irq(&phba->hbalock); | |
3925 | rc = -ENXIO; | |
3926 | } else { | |
3927 | /* Allow asynchronous mailbox command to go through */ | |
3928 | spin_lock_irq(&phba->hbalock); | |
3929 | phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK; | |
3930 | spin_unlock_irq(&phba->hbalock); | |
3931 | done = 1; | |
3932 | } | |
3933 | } | |
3934 | if (!done) { | |
3935 | rc = -EINVAL; | |
3936 | goto do_prep_failed; | |
3937 | } | |
3938 | if (pmb->u.mb.un.varCfgPort.sli_mode == 3) { | |
3939 | if (!pmb->u.mb.un.varCfgPort.cMA) { | |
3940 | rc = -ENXIO; | |
3941 | goto do_prep_failed; | |
3942 | } | |
3943 | if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) { | |
3944 | phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; | |
3945 | phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi; | |
3946 | phba->max_vports = (phba->max_vpi > phba->max_vports) ? | |
3947 | phba->max_vpi : phba->max_vports; | |
3948 | ||
3949 | } else | |
3950 | phba->max_vpi = 0; | |
3951 | if (pmb->u.mb.un.varCfgPort.gdss) | |
3952 | phba->sli3_options |= LPFC_SLI3_DSS_ENABLED; | |
3953 | if (pmb->u.mb.un.varCfgPort.gerbm) | |
3954 | phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED; | |
3955 | if (pmb->u.mb.un.varCfgPort.gcrp) | |
3956 | phba->sli3_options |= LPFC_SLI3_CRP_ENABLED; | |
3957 | if (pmb->u.mb.un.varCfgPort.ginb) { | |
3958 | phba->sli3_options |= LPFC_SLI3_INB_ENABLED; | |
3959 | phba->hbq_get = phba->mbox->us.s3_inb_pgp.hbq_get; | |
3960 | phba->port_gp = phba->mbox->us.s3_inb_pgp.port; | |
3961 | phba->inb_ha_copy = &phba->mbox->us.s3_inb_pgp.ha_copy; | |
3962 | phba->inb_counter = &phba->mbox->us.s3_inb_pgp.counter; | |
3963 | phba->inb_last_counter = | |
3964 | phba->mbox->us.s3_inb_pgp.counter; | |
3965 | } else { | |
3966 | phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get; | |
3967 | phba->port_gp = phba->mbox->us.s3_pgp.port; | |
3968 | phba->inb_ha_copy = NULL; | |
3969 | phba->inb_counter = NULL; | |
3970 | } | |
3971 | ||
3972 | if (phba->cfg_enable_bg) { | |
3973 | if (pmb->u.mb.un.varCfgPort.gbg) | |
3974 | phba->sli3_options |= LPFC_SLI3_BG_ENABLED; | |
3975 | else | |
3976 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
3977 | "0443 Adapter did not grant " | |
3978 | "BlockGuard\n"); | |
3979 | } | |
3980 | } else { | |
3981 | phba->hbq_get = NULL; | |
3982 | phba->port_gp = phba->mbox->us.s2.port; | |
3983 | phba->inb_ha_copy = NULL; | |
3984 | phba->inb_counter = NULL; | |
3985 | phba->max_vpi = 0; | |
3986 | } | |
3987 | do_prep_failed: | |
3988 | mempool_free(pmb, phba->mbox_mem_pool); | |
3989 | return rc; | |
3990 | } | |
3991 | ||
3992 | ||
3993 | /** | |
3994 | * lpfc_sli_hba_setup - SLI intialization function | |
3995 | * @phba: Pointer to HBA context object. | |
3996 | * | |
3997 | * This function is the main SLI intialization function. This function | |
3998 | * is called by the HBA intialization code, HBA reset code and HBA | |
3999 | * error attention handler code. Caller is not required to hold any | |
4000 | * locks. This function issues config_port mailbox command to configure | |
4001 | * the SLI, setup iocb rings and HBQ rings. In the end the function | |
4002 | * calls the config_port_post function to issue init_link mailbox | |
4003 | * command and to start the discovery. The function will return zero | |
4004 | * if successful, else it will return negative error code. | |
4005 | **/ | |
4006 | int | |
4007 | lpfc_sli_hba_setup(struct lpfc_hba *phba) | |
4008 | { | |
4009 | uint32_t rc; | |
4010 | int mode = 3; | |
4011 | ||
4012 | switch (lpfc_sli_mode) { | |
4013 | case 2: | |
4014 | if (phba->cfg_enable_npiv) { | |
4015 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, | |
4016 | "1824 NPIV enabled: Override lpfc_sli_mode " | |
4017 | "parameter (%d) to auto (0).\n", | |
4018 | lpfc_sli_mode); | |
4019 | break; | |
4020 | } | |
4021 | mode = 2; | |
4022 | break; | |
4023 | case 0: | |
4024 | case 3: | |
4025 | break; | |
4026 | default: | |
4027 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, | |
4028 | "1819 Unrecognized lpfc_sli_mode " | |
4029 | "parameter: %d.\n", lpfc_sli_mode); | |
4030 | ||
4031 | break; | |
4032 | } | |
4033 | ||
4034 | rc = lpfc_sli_config_port(phba, mode); | |
4035 | ||
4036 | if (rc && lpfc_sli_mode == 3) | |
4037 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, | |
4038 | "1820 Unable to select SLI-3. " | |
4039 | "Not supported by adapter.\n"); | |
4040 | if (rc && mode != 2) | |
4041 | rc = lpfc_sli_config_port(phba, 2); | |
4042 | if (rc) | |
4043 | goto lpfc_sli_hba_setup_error; | |
4044 | ||
4045 | if (phba->sli_rev == 3) { | |
4046 | phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE; | |
4047 | phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE; | |
4048 | } else { | |
4049 | phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE; | |
4050 | phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE; | |
4051 | phba->sli3_options = 0; | |
4052 | } | |
4053 | ||
4054 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
4055 | "0444 Firmware in SLI %x mode. Max_vpi %d\n", | |
4056 | phba->sli_rev, phba->max_vpi); | |
4057 | rc = lpfc_sli_ring_map(phba); | |
4058 | ||
4059 | if (rc) | |
4060 | goto lpfc_sli_hba_setup_error; | |
4061 | ||
4062 | /* Init HBQs */ | |
4063 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { | |
4064 | rc = lpfc_sli_hbq_setup(phba); | |
4065 | if (rc) | |
4066 | goto lpfc_sli_hba_setup_error; | |
4067 | } | |
4068 | spin_lock_irq(&phba->hbalock); | |
4069 | phba->sli.sli_flag |= LPFC_PROCESS_LA; | |
4070 | spin_unlock_irq(&phba->hbalock); | |
4071 | ||
4072 | rc = lpfc_config_port_post(phba); | |
4073 | if (rc) | |
4074 | goto lpfc_sli_hba_setup_error; | |
4075 | ||
4076 | return rc; | |
4077 | ||
4078 | lpfc_sli_hba_setup_error: | |
4079 | phba->link_state = LPFC_HBA_ERROR; | |
4080 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
4081 | "0445 Firmware initialization failed\n"); | |
4082 | return rc; | |
4083 | } | |
4084 | ||
4085 | /** | |
4086 | * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region | |
4087 | * @phba: Pointer to HBA context object. | |
4088 | * @mboxq: mailbox pointer. | |
4089 | * This function issue a dump mailbox command to read config region | |
4090 | * 23 and parse the records in the region and populate driver | |
4091 | * data structure. | |
4092 | **/ | |
4093 | static int | |
4094 | lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba, | |
4095 | LPFC_MBOXQ_t *mboxq) | |
4096 | { | |
4097 | struct lpfc_dmabuf *mp; | |
4098 | struct lpfc_mqe *mqe; | |
4099 | uint32_t data_length; | |
4100 | int rc; | |
4101 | ||
4102 | /* Program the default value of vlan_id and fc_map */ | |
4103 | phba->valid_vlan = 0; | |
4104 | phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; | |
4105 | phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; | |
4106 | phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; | |
4107 | ||
4108 | mqe = &mboxq->u.mqe; | |
4109 | if (lpfc_dump_fcoe_param(phba, mboxq)) | |
4110 | return -ENOMEM; | |
4111 | ||
4112 | mp = (struct lpfc_dmabuf *) mboxq->context1; | |
4113 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4114 | ||
4115 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
4116 | "(%d):2571 Mailbox cmd x%x Status x%x " | |
4117 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x " | |
4118 | "x%x x%x x%x x%x x%x x%x x%x x%x x%x " | |
4119 | "CQ: x%x x%x x%x x%x\n", | |
4120 | mboxq->vport ? mboxq->vport->vpi : 0, | |
4121 | bf_get(lpfc_mqe_command, mqe), | |
4122 | bf_get(lpfc_mqe_status, mqe), | |
4123 | mqe->un.mb_words[0], mqe->un.mb_words[1], | |
4124 | mqe->un.mb_words[2], mqe->un.mb_words[3], | |
4125 | mqe->un.mb_words[4], mqe->un.mb_words[5], | |
4126 | mqe->un.mb_words[6], mqe->un.mb_words[7], | |
4127 | mqe->un.mb_words[8], mqe->un.mb_words[9], | |
4128 | mqe->un.mb_words[10], mqe->un.mb_words[11], | |
4129 | mqe->un.mb_words[12], mqe->un.mb_words[13], | |
4130 | mqe->un.mb_words[14], mqe->un.mb_words[15], | |
4131 | mqe->un.mb_words[16], mqe->un.mb_words[50], | |
4132 | mboxq->mcqe.word0, | |
4133 | mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1, | |
4134 | mboxq->mcqe.trailer); | |
4135 | ||
4136 | if (rc) { | |
4137 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
4138 | kfree(mp); | |
4139 | return -EIO; | |
4140 | } | |
4141 | data_length = mqe->un.mb_words[5]; | |
4142 | if (data_length > DMP_RGN23_SIZE) { | |
4143 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
4144 | kfree(mp); | |
4145 | return -EIO; | |
4146 | } | |
4147 | ||
4148 | lpfc_parse_fcoe_conf(phba, mp->virt, data_length); | |
4149 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
4150 | kfree(mp); | |
4151 | return 0; | |
4152 | } | |
4153 | ||
4154 | /** | |
4155 | * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data | |
4156 | * @phba: pointer to lpfc hba data structure. | |
4157 | * @mboxq: pointer to the LPFC_MBOXQ_t structure. | |
4158 | * @vpd: pointer to the memory to hold resulting port vpd data. | |
4159 | * @vpd_size: On input, the number of bytes allocated to @vpd. | |
4160 | * On output, the number of data bytes in @vpd. | |
4161 | * | |
4162 | * This routine executes a READ_REV SLI4 mailbox command. In | |
4163 | * addition, this routine gets the port vpd data. | |
4164 | * | |
4165 | * Return codes | |
4166 | * 0 - sucessful | |
4167 | * ENOMEM - could not allocated memory. | |
4168 | **/ | |
4169 | static int | |
4170 | lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, | |
4171 | uint8_t *vpd, uint32_t *vpd_size) | |
4172 | { | |
4173 | int rc = 0; | |
4174 | uint32_t dma_size; | |
4175 | struct lpfc_dmabuf *dmabuf; | |
4176 | struct lpfc_mqe *mqe; | |
4177 | ||
4178 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
4179 | if (!dmabuf) | |
4180 | return -ENOMEM; | |
4181 | ||
4182 | /* | |
4183 | * Get a DMA buffer for the vpd data resulting from the READ_REV | |
4184 | * mailbox command. | |
4185 | */ | |
4186 | dma_size = *vpd_size; | |
4187 | dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, | |
4188 | dma_size, | |
4189 | &dmabuf->phys, | |
4190 | GFP_KERNEL); | |
4191 | if (!dmabuf->virt) { | |
4192 | kfree(dmabuf); | |
4193 | return -ENOMEM; | |
4194 | } | |
4195 | memset(dmabuf->virt, 0, dma_size); | |
4196 | ||
4197 | /* | |
4198 | * The SLI4 implementation of READ_REV conflicts at word1, | |
4199 | * bits 31:16 and SLI4 adds vpd functionality not present | |
4200 | * in SLI3. This code corrects the conflicts. | |
4201 | */ | |
4202 | lpfc_read_rev(phba, mboxq); | |
4203 | mqe = &mboxq->u.mqe; | |
4204 | mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys); | |
4205 | mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys); | |
4206 | mqe->un.read_rev.word1 &= 0x0000FFFF; | |
4207 | bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1); | |
4208 | bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size); | |
4209 | ||
4210 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4211 | if (rc) { | |
4212 | dma_free_coherent(&phba->pcidev->dev, dma_size, | |
4213 | dmabuf->virt, dmabuf->phys); | |
4214 | return -EIO; | |
4215 | } | |
4216 | ||
4217 | /* | |
4218 | * The available vpd length cannot be bigger than the | |
4219 | * DMA buffer passed to the port. Catch the less than | |
4220 | * case and update the caller's size. | |
4221 | */ | |
4222 | if (mqe->un.read_rev.avail_vpd_len < *vpd_size) | |
4223 | *vpd_size = mqe->un.read_rev.avail_vpd_len; | |
4224 | ||
4225 | lpfc_sli_pcimem_bcopy(dmabuf->virt, vpd, *vpd_size); | |
4226 | dma_free_coherent(&phba->pcidev->dev, dma_size, | |
4227 | dmabuf->virt, dmabuf->phys); | |
4228 | kfree(dmabuf); | |
4229 | return 0; | |
4230 | } | |
4231 | ||
4232 | /** | |
4233 | * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues | |
4234 | * @phba: pointer to lpfc hba data structure. | |
4235 | * | |
4236 | * This routine is called to explicitly arm the SLI4 device's completion and | |
4237 | * event queues | |
4238 | **/ | |
4239 | static void | |
4240 | lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba) | |
4241 | { | |
4242 | uint8_t fcp_eqidx; | |
4243 | ||
4244 | lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM); | |
4245 | lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM); | |
4246 | lpfc_sli4_cq_release(phba->sli4_hba.rxq_cq, LPFC_QUEUE_REARM); | |
4247 | for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) | |
4248 | lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx], | |
4249 | LPFC_QUEUE_REARM); | |
4250 | lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM); | |
4251 | for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) | |
4252 | lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx], | |
4253 | LPFC_QUEUE_REARM); | |
4254 | } | |
4255 | ||
4256 | /** | |
4257 | * lpfc_sli4_hba_setup - SLI4 device intialization PCI function | |
4258 | * @phba: Pointer to HBA context object. | |
4259 | * | |
4260 | * This function is the main SLI4 device intialization PCI function. This | |
4261 | * function is called by the HBA intialization code, HBA reset code and | |
4262 | * HBA error attention handler code. Caller is not required to hold any | |
4263 | * locks. | |
4264 | **/ | |
4265 | int | |
4266 | lpfc_sli4_hba_setup(struct lpfc_hba *phba) | |
4267 | { | |
4268 | int rc; | |
4269 | LPFC_MBOXQ_t *mboxq; | |
4270 | struct lpfc_mqe *mqe; | |
4271 | uint8_t *vpd; | |
4272 | uint32_t vpd_size; | |
4273 | uint32_t ftr_rsp = 0; | |
4274 | struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport); | |
4275 | struct lpfc_vport *vport = phba->pport; | |
4276 | struct lpfc_dmabuf *mp; | |
4277 | ||
4278 | /* Perform a PCI function reset to start from clean */ | |
4279 | rc = lpfc_pci_function_reset(phba); | |
4280 | if (unlikely(rc)) | |
4281 | return -ENODEV; | |
4282 | ||
4283 | /* Check the HBA Host Status Register for readyness */ | |
4284 | rc = lpfc_sli4_post_status_check(phba); | |
4285 | if (unlikely(rc)) | |
4286 | return -ENODEV; | |
4287 | else { | |
4288 | spin_lock_irq(&phba->hbalock); | |
4289 | phba->sli.sli_flag |= LPFC_SLI_ACTIVE; | |
4290 | spin_unlock_irq(&phba->hbalock); | |
4291 | } | |
4292 | ||
4293 | /* | |
4294 | * Allocate a single mailbox container for initializing the | |
4295 | * port. | |
4296 | */ | |
4297 | mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
4298 | if (!mboxq) | |
4299 | return -ENOMEM; | |
4300 | ||
4301 | /* | |
4302 | * Continue initialization with default values even if driver failed | |
4303 | * to read FCoE param config regions | |
4304 | */ | |
4305 | if (lpfc_sli4_read_fcoe_params(phba, mboxq)) | |
4306 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT, | |
4307 | "2570 Failed to read FCoE parameters\n"); | |
4308 | ||
4309 | /* Issue READ_REV to collect vpd and FW information. */ | |
4310 | vpd_size = PAGE_SIZE; | |
4311 | vpd = kzalloc(vpd_size, GFP_KERNEL); | |
4312 | if (!vpd) { | |
4313 | rc = -ENOMEM; | |
4314 | goto out_free_mbox; | |
4315 | } | |
4316 | ||
4317 | rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size); | |
4318 | if (unlikely(rc)) | |
4319 | goto out_free_vpd; | |
4320 | ||
4321 | mqe = &mboxq->u.mqe; | |
4322 | phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev); | |
4323 | if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) | |
4324 | phba->hba_flag |= HBA_FCOE_SUPPORT; | |
4325 | if (phba->sli_rev != LPFC_SLI_REV4 || | |
4326 | !(phba->hba_flag & HBA_FCOE_SUPPORT)) { | |
4327 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4328 | "0376 READ_REV Error. SLI Level %d " | |
4329 | "FCoE enabled %d\n", | |
4330 | phba->sli_rev, phba->hba_flag & HBA_FCOE_SUPPORT); | |
4331 | rc = -EIO; | |
4332 | goto out_free_vpd; | |
4333 | } | |
4334 | /* | |
4335 | * Evaluate the read rev and vpd data. Populate the driver | |
4336 | * state with the results. If this routine fails, the failure | |
4337 | * is not fatal as the driver will use generic values. | |
4338 | */ | |
4339 | rc = lpfc_parse_vpd(phba, vpd, vpd_size); | |
4340 | if (unlikely(!rc)) { | |
4341 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4342 | "0377 Error %d parsing vpd. " | |
4343 | "Using defaults.\n", rc); | |
4344 | rc = 0; | |
4345 | } | |
4346 | ||
4347 | /* Save information as VPD data */ | |
4348 | phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev; | |
4349 | phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev; | |
4350 | phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev; | |
4351 | phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high, | |
4352 | &mqe->un.read_rev); | |
4353 | phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low, | |
4354 | &mqe->un.read_rev); | |
4355 | phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high, | |
4356 | &mqe->un.read_rev); | |
4357 | phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low, | |
4358 | &mqe->un.read_rev); | |
4359 | phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev; | |
4360 | memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16); | |
4361 | phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev; | |
4362 | memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16); | |
4363 | phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev; | |
4364 | memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16); | |
4365 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
4366 | "(%d):0380 READ_REV Status x%x " | |
4367 | "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n", | |
4368 | mboxq->vport ? mboxq->vport->vpi : 0, | |
4369 | bf_get(lpfc_mqe_status, mqe), | |
4370 | phba->vpd.rev.opFwName, | |
4371 | phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow, | |
4372 | phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow); | |
4373 | ||
4374 | /* | |
4375 | * Discover the port's supported feature set and match it against the | |
4376 | * hosts requests. | |
4377 | */ | |
4378 | lpfc_request_features(phba, mboxq); | |
4379 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4380 | if (unlikely(rc)) { | |
4381 | rc = -EIO; | |
4382 | goto out_free_vpd; | |
4383 | } | |
4384 | ||
4385 | /* | |
4386 | * The port must support FCP initiator mode as this is the | |
4387 | * only mode running in the host. | |
4388 | */ | |
4389 | if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) { | |
4390 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, | |
4391 | "0378 No support for fcpi mode.\n"); | |
4392 | ftr_rsp++; | |
4393 | } | |
4394 | ||
4395 | /* | |
4396 | * If the port cannot support the host's requested features | |
4397 | * then turn off the global config parameters to disable the | |
4398 | * feature in the driver. This is not a fatal error. | |
4399 | */ | |
4400 | if ((phba->cfg_enable_bg) && | |
4401 | !(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))) | |
4402 | ftr_rsp++; | |
4403 | ||
4404 | if (phba->max_vpi && phba->cfg_enable_npiv && | |
4405 | !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs))) | |
4406 | ftr_rsp++; | |
4407 | ||
4408 | if (ftr_rsp) { | |
4409 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, | |
4410 | "0379 Feature Mismatch Data: x%08x %08x " | |
4411 | "x%x x%x x%x\n", mqe->un.req_ftrs.word2, | |
4412 | mqe->un.req_ftrs.word3, phba->cfg_enable_bg, | |
4413 | phba->cfg_enable_npiv, phba->max_vpi); | |
4414 | if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))) | |
4415 | phba->cfg_enable_bg = 0; | |
4416 | if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs))) | |
4417 | phba->cfg_enable_npiv = 0; | |
4418 | } | |
4419 | ||
4420 | /* These SLI3 features are assumed in SLI4 */ | |
4421 | spin_lock_irq(&phba->hbalock); | |
4422 | phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED); | |
4423 | spin_unlock_irq(&phba->hbalock); | |
4424 | ||
4425 | /* Read the port's service parameters. */ | |
4426 | lpfc_read_sparam(phba, mboxq, vport->vpi); | |
4427 | mboxq->vport = vport; | |
4428 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4429 | mp = (struct lpfc_dmabuf *) mboxq->context1; | |
4430 | if (rc == MBX_SUCCESS) { | |
4431 | memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm)); | |
4432 | rc = 0; | |
4433 | } | |
4434 | ||
4435 | /* | |
4436 | * This memory was allocated by the lpfc_read_sparam routine. Release | |
4437 | * it to the mbuf pool. | |
4438 | */ | |
4439 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
4440 | kfree(mp); | |
4441 | mboxq->context1 = NULL; | |
4442 | if (unlikely(rc)) { | |
4443 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4444 | "0382 READ_SPARAM command failed " | |
4445 | "status %d, mbxStatus x%x\n", | |
4446 | rc, bf_get(lpfc_mqe_status, mqe)); | |
4447 | phba->link_state = LPFC_HBA_ERROR; | |
4448 | rc = -EIO; | |
4449 | goto out_free_vpd; | |
4450 | } | |
4451 | ||
4452 | if (phba->cfg_soft_wwnn) | |
4453 | u64_to_wwn(phba->cfg_soft_wwnn, | |
4454 | vport->fc_sparam.nodeName.u.wwn); | |
4455 | if (phba->cfg_soft_wwpn) | |
4456 | u64_to_wwn(phba->cfg_soft_wwpn, | |
4457 | vport->fc_sparam.portName.u.wwn); | |
4458 | memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, | |
4459 | sizeof(struct lpfc_name)); | |
4460 | memcpy(&vport->fc_portname, &vport->fc_sparam.portName, | |
4461 | sizeof(struct lpfc_name)); | |
4462 | ||
4463 | /* Update the fc_host data structures with new wwn. */ | |
4464 | fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); | |
4465 | fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); | |
4466 | ||
4467 | /* Register SGL pool to the device using non-embedded mailbox command */ | |
4468 | rc = lpfc_sli4_post_sgl_list(phba); | |
4469 | if (unlikely(rc)) { | |
4470 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4471 | "0582 Error %d during sgl post operation", rc); | |
4472 | rc = -ENODEV; | |
4473 | goto out_free_vpd; | |
4474 | } | |
4475 | ||
4476 | /* Register SCSI SGL pool to the device */ | |
4477 | rc = lpfc_sli4_repost_scsi_sgl_list(phba); | |
4478 | if (unlikely(rc)) { | |
4479 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, | |
4480 | "0383 Error %d during scsi sgl post opeation", | |
4481 | rc); | |
4482 | /* Some Scsi buffers were moved to the abort scsi list */ | |
4483 | /* A pci function reset will repost them */ | |
4484 | rc = -ENODEV; | |
4485 | goto out_free_vpd; | |
4486 | } | |
4487 | ||
4488 | /* Post the rpi header region to the device. */ | |
4489 | rc = lpfc_sli4_post_all_rpi_hdrs(phba); | |
4490 | if (unlikely(rc)) { | |
4491 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4492 | "0393 Error %d during rpi post operation\n", | |
4493 | rc); | |
4494 | rc = -ENODEV; | |
4495 | goto out_free_vpd; | |
4496 | } | |
4497 | if (phba->cfg_enable_fip) | |
4498 | bf_set(lpfc_fip_flag, &phba->sli4_hba.sli4_flags, 1); | |
4499 | else | |
4500 | bf_set(lpfc_fip_flag, &phba->sli4_hba.sli4_flags, 0); | |
4501 | ||
4502 | /* Set up all the queues to the device */ | |
4503 | rc = lpfc_sli4_queue_setup(phba); | |
4504 | if (unlikely(rc)) { | |
4505 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4506 | "0381 Error %d during queue setup.\n ", rc); | |
4507 | goto out_stop_timers; | |
4508 | } | |
4509 | ||
4510 | /* Arm the CQs and then EQs on device */ | |
4511 | lpfc_sli4_arm_cqeq_intr(phba); | |
4512 | ||
4513 | /* Indicate device interrupt mode */ | |
4514 | phba->sli4_hba.intr_enable = 1; | |
4515 | ||
4516 | /* Allow asynchronous mailbox command to go through */ | |
4517 | spin_lock_irq(&phba->hbalock); | |
4518 | phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK; | |
4519 | spin_unlock_irq(&phba->hbalock); | |
4520 | ||
4521 | /* Post receive buffers to the device */ | |
4522 | lpfc_sli4_rb_setup(phba); | |
4523 | ||
4524 | /* Start the ELS watchdog timer */ | |
4525 | mod_timer(&vport->els_tmofunc, | |
4526 | jiffies + HZ * (phba->fc_ratov * 2)); | |
4527 | ||
4528 | /* Start heart beat timer */ | |
4529 | mod_timer(&phba->hb_tmofunc, | |
4530 | jiffies + HZ * LPFC_HB_MBOX_INTERVAL); | |
4531 | phba->hb_outstanding = 0; | |
4532 | phba->last_completion_time = jiffies; | |
4533 | ||
4534 | /* Start error attention (ERATT) polling timer */ | |
4535 | mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); | |
4536 | ||
4537 | /* | |
4538 | * The port is ready, set the host's link state to LINK_DOWN | |
4539 | * in preparation for link interrupts. | |
4540 | */ | |
4541 | lpfc_init_link(phba, mboxq, phba->cfg_topology, phba->cfg_link_speed); | |
4542 | mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
4543 | lpfc_set_loopback_flag(phba); | |
4544 | /* Change driver state to LPFC_LINK_DOWN right before init link */ | |
4545 | spin_lock_irq(&phba->hbalock); | |
4546 | phba->link_state = LPFC_LINK_DOWN; | |
4547 | spin_unlock_irq(&phba->hbalock); | |
4548 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
4549 | if (unlikely(rc != MBX_NOT_FINISHED)) { | |
4550 | kfree(vpd); | |
4551 | return 0; | |
4552 | } else | |
4553 | rc = -EIO; | |
4554 | ||
4555 | /* Unset all the queues set up in this routine when error out */ | |
4556 | if (rc) | |
4557 | lpfc_sli4_queue_unset(phba); | |
4558 | ||
4559 | out_stop_timers: | |
4560 | if (rc) | |
4561 | lpfc_stop_hba_timers(phba); | |
4562 | out_free_vpd: | |
4563 | kfree(vpd); | |
4564 | out_free_mbox: | |
4565 | mempool_free(mboxq, phba->mbox_mem_pool); | |
4566 | return rc; | |
4567 | } | |
4568 | ||
4569 | /** | |
4570 | * lpfc_mbox_timeout - Timeout call back function for mbox timer | |
4571 | * @ptr: context object - pointer to hba structure. | |
4572 | * | |
4573 | * This is the callback function for mailbox timer. The mailbox | |
4574 | * timer is armed when a new mailbox command is issued and the timer | |
4575 | * is deleted when the mailbox complete. The function is called by | |
4576 | * the kernel timer code when a mailbox does not complete within | |
4577 | * expected time. This function wakes up the worker thread to | |
4578 | * process the mailbox timeout and returns. All the processing is | |
4579 | * done by the worker thread function lpfc_mbox_timeout_handler. | |
4580 | **/ | |
4581 | void | |
4582 | lpfc_mbox_timeout(unsigned long ptr) | |
4583 | { | |
4584 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; | |
4585 | unsigned long iflag; | |
4586 | uint32_t tmo_posted; | |
4587 | ||
4588 | spin_lock_irqsave(&phba->pport->work_port_lock, iflag); | |
4589 | tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO; | |
4590 | if (!tmo_posted) | |
4591 | phba->pport->work_port_events |= WORKER_MBOX_TMO; | |
4592 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); | |
4593 | ||
4594 | if (!tmo_posted) | |
4595 | lpfc_worker_wake_up(phba); | |
4596 | return; | |
4597 | } | |
4598 | ||
4599 | ||
4600 | /** | |
4601 | * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout | |
4602 | * @phba: Pointer to HBA context object. | |
4603 | * | |
4604 | * This function is called from worker thread when a mailbox command times out. | |
4605 | * The caller is not required to hold any locks. This function will reset the | |
4606 | * HBA and recover all the pending commands. | |
4607 | **/ | |
4608 | void | |
4609 | lpfc_mbox_timeout_handler(struct lpfc_hba *phba) | |
4610 | { | |
4611 | LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active; | |
4612 | MAILBOX_t *mb = &pmbox->u.mb; | |
4613 | struct lpfc_sli *psli = &phba->sli; | |
4614 | struct lpfc_sli_ring *pring; | |
4615 | ||
4616 | /* Check the pmbox pointer first. There is a race condition | |
4617 | * between the mbox timeout handler getting executed in the | |
4618 | * worklist and the mailbox actually completing. When this | |
4619 | * race condition occurs, the mbox_active will be NULL. | |
4620 | */ | |
4621 | spin_lock_irq(&phba->hbalock); | |
4622 | if (pmbox == NULL) { | |
4623 | lpfc_printf_log(phba, KERN_WARNING, | |
4624 | LOG_MBOX | LOG_SLI, | |
4625 | "0353 Active Mailbox cleared - mailbox timeout " | |
4626 | "exiting\n"); | |
4627 | spin_unlock_irq(&phba->hbalock); | |
4628 | return; | |
4629 | } | |
4630 | ||
4631 | /* Mbox cmd <mbxCommand> timeout */ | |
4632 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4633 | "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n", | |
4634 | mb->mbxCommand, | |
4635 | phba->pport->port_state, | |
4636 | phba->sli.sli_flag, | |
4637 | phba->sli.mbox_active); | |
4638 | spin_unlock_irq(&phba->hbalock); | |
4639 | ||
4640 | /* Setting state unknown so lpfc_sli_abort_iocb_ring | |
4641 | * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing | |
4642 | * it to fail all oustanding SCSI IO. | |
4643 | */ | |
4644 | spin_lock_irq(&phba->pport->work_port_lock); | |
4645 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; | |
4646 | spin_unlock_irq(&phba->pport->work_port_lock); | |
4647 | spin_lock_irq(&phba->hbalock); | |
4648 | phba->link_state = LPFC_LINK_UNKNOWN; | |
4649 | psli->sli_flag &= ~LPFC_SLI_ACTIVE; | |
4650 | spin_unlock_irq(&phba->hbalock); | |
4651 | ||
4652 | pring = &psli->ring[psli->fcp_ring]; | |
4653 | lpfc_sli_abort_iocb_ring(phba, pring); | |
4654 | ||
4655 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4656 | "0345 Resetting board due to mailbox timeout\n"); | |
4657 | ||
4658 | /* Reset the HBA device */ | |
4659 | lpfc_reset_hba(phba); | |
4660 | } | |
4661 | ||
4662 | /** | |
4663 | * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware | |
4664 | * @phba: Pointer to HBA context object. | |
4665 | * @pmbox: Pointer to mailbox object. | |
4666 | * @flag: Flag indicating how the mailbox need to be processed. | |
4667 | * | |
4668 | * This function is called by discovery code and HBA management code | |
4669 | * to submit a mailbox command to firmware with SLI-3 interface spec. This | |
4670 | * function gets the hbalock to protect the data structures. | |
4671 | * The mailbox command can be submitted in polling mode, in which case | |
4672 | * this function will wait in a polling loop for the completion of the | |
4673 | * mailbox. | |
4674 | * If the mailbox is submitted in no_wait mode (not polling) the | |
4675 | * function will submit the command and returns immediately without waiting | |
4676 | * for the mailbox completion. The no_wait is supported only when HBA | |
4677 | * is in SLI2/SLI3 mode - interrupts are enabled. | |
4678 | * The SLI interface allows only one mailbox pending at a time. If the | |
4679 | * mailbox is issued in polling mode and there is already a mailbox | |
4680 | * pending, then the function will return an error. If the mailbox is issued | |
4681 | * in NO_WAIT mode and there is a mailbox pending already, the function | |
4682 | * will return MBX_BUSY after queuing the mailbox into mailbox queue. | |
4683 | * The sli layer owns the mailbox object until the completion of mailbox | |
4684 | * command if this function return MBX_BUSY or MBX_SUCCESS. For all other | |
4685 | * return codes the caller owns the mailbox command after the return of | |
4686 | * the function. | |
4687 | **/ | |
4688 | static int | |
4689 | lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, | |
4690 | uint32_t flag) | |
4691 | { | |
4692 | MAILBOX_t *mb; | |
4693 | struct lpfc_sli *psli = &phba->sli; | |
4694 | uint32_t status, evtctr; | |
4695 | uint32_t ha_copy; | |
4696 | int i; | |
4697 | unsigned long timeout; | |
4698 | unsigned long drvr_flag = 0; | |
4699 | uint32_t word0, ldata; | |
4700 | void __iomem *to_slim; | |
4701 | int processing_queue = 0; | |
4702 | ||
4703 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
4704 | if (!pmbox) { | |
4705 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
4706 | /* processing mbox queue from intr_handler */ | |
4707 | if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) { | |
4708 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4709 | return MBX_SUCCESS; | |
4710 | } | |
4711 | processing_queue = 1; | |
4712 | pmbox = lpfc_mbox_get(phba); | |
4713 | if (!pmbox) { | |
4714 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4715 | return MBX_SUCCESS; | |
4716 | } | |
4717 | } | |
4718 | ||
4719 | if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl && | |
4720 | pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) { | |
4721 | if(!pmbox->vport) { | |
4722 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4723 | lpfc_printf_log(phba, KERN_ERR, | |
4724 | LOG_MBOX | LOG_VPORT, | |
4725 | "1806 Mbox x%x failed. No vport\n", | |
4726 | pmbox->u.mb.mbxCommand); | |
4727 | dump_stack(); | |
4728 | goto out_not_finished; | |
4729 | } | |
4730 | } | |
4731 | ||
4732 | /* If the PCI channel is in offline state, do not post mbox. */ | |
4733 | if (unlikely(pci_channel_offline(phba->pcidev))) { | |
4734 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4735 | goto out_not_finished; | |
4736 | } | |
4737 | ||
4738 | /* If HBA has a deferred error attention, fail the iocb. */ | |
4739 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
4740 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4741 | goto out_not_finished; | |
4742 | } | |
4743 | ||
4744 | psli = &phba->sli; | |
4745 | ||
4746 | mb = &pmbox->u.mb; | |
4747 | status = MBX_SUCCESS; | |
4748 | ||
4749 | if (phba->link_state == LPFC_HBA_ERROR) { | |
4750 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4751 | ||
4752 | /* Mbox command <mbxCommand> cannot issue */ | |
4753 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4754 | "(%d):0311 Mailbox command x%x cannot " | |
4755 | "issue Data: x%x x%x\n", | |
4756 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4757 | pmbox->u.mb.mbxCommand, psli->sli_flag, flag); | |
4758 | goto out_not_finished; | |
4759 | } | |
4760 | ||
4761 | if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT && | |
4762 | !(readl(phba->HCregaddr) & HC_MBINT_ENA)) { | |
4763 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4764 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4765 | "(%d):2528 Mailbox command x%x cannot " | |
4766 | "issue Data: x%x x%x\n", | |
4767 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4768 | pmbox->u.mb.mbxCommand, psli->sli_flag, flag); | |
4769 | goto out_not_finished; | |
4770 | } | |
4771 | ||
4772 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { | |
4773 | /* Polling for a mbox command when another one is already active | |
4774 | * is not allowed in SLI. Also, the driver must have established | |
4775 | * SLI2 mode to queue and process multiple mbox commands. | |
4776 | */ | |
4777 | ||
4778 | if (flag & MBX_POLL) { | |
4779 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4780 | ||
4781 | /* Mbox command <mbxCommand> cannot issue */ | |
4782 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4783 | "(%d):2529 Mailbox command x%x " | |
4784 | "cannot issue Data: x%x x%x\n", | |
4785 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4786 | pmbox->u.mb.mbxCommand, | |
4787 | psli->sli_flag, flag); | |
4788 | goto out_not_finished; | |
4789 | } | |
4790 | ||
4791 | if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) { | |
4792 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4793 | /* Mbox command <mbxCommand> cannot issue */ | |
4794 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4795 | "(%d):2530 Mailbox command x%x " | |
4796 | "cannot issue Data: x%x x%x\n", | |
4797 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4798 | pmbox->u.mb.mbxCommand, | |
4799 | psli->sli_flag, flag); | |
4800 | goto out_not_finished; | |
4801 | } | |
4802 | ||
4803 | /* Another mailbox command is still being processed, queue this | |
4804 | * command to be processed later. | |
4805 | */ | |
4806 | lpfc_mbox_put(phba, pmbox); | |
4807 | ||
4808 | /* Mbox cmd issue - BUSY */ | |
4809 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
4810 | "(%d):0308 Mbox cmd issue - BUSY Data: " | |
4811 | "x%x x%x x%x x%x\n", | |
4812 | pmbox->vport ? pmbox->vport->vpi : 0xffffff, | |
4813 | mb->mbxCommand, phba->pport->port_state, | |
4814 | psli->sli_flag, flag); | |
4815 | ||
4816 | psli->slistat.mbox_busy++; | |
4817 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4818 | ||
4819 | if (pmbox->vport) { | |
4820 | lpfc_debugfs_disc_trc(pmbox->vport, | |
4821 | LPFC_DISC_TRC_MBOX_VPORT, | |
4822 | "MBOX Bsy vport: cmd:x%x mb:x%x x%x", | |
4823 | (uint32_t)mb->mbxCommand, | |
4824 | mb->un.varWords[0], mb->un.varWords[1]); | |
4825 | } | |
4826 | else { | |
4827 | lpfc_debugfs_disc_trc(phba->pport, | |
4828 | LPFC_DISC_TRC_MBOX, | |
4829 | "MBOX Bsy: cmd:x%x mb:x%x x%x", | |
4830 | (uint32_t)mb->mbxCommand, | |
4831 | mb->un.varWords[0], mb->un.varWords[1]); | |
4832 | } | |
4833 | ||
4834 | return MBX_BUSY; | |
4835 | } | |
4836 | ||
4837 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; | |
4838 | ||
4839 | /* If we are not polling, we MUST be in SLI2 mode */ | |
4840 | if (flag != MBX_POLL) { | |
4841 | if (!(psli->sli_flag & LPFC_SLI_ACTIVE) && | |
4842 | (mb->mbxCommand != MBX_KILL_BOARD)) { | |
4843 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
4844 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4845 | /* Mbox command <mbxCommand> cannot issue */ | |
4846 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4847 | "(%d):2531 Mailbox command x%x " | |
4848 | "cannot issue Data: x%x x%x\n", | |
4849 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4850 | pmbox->u.mb.mbxCommand, | |
4851 | psli->sli_flag, flag); | |
4852 | goto out_not_finished; | |
4853 | } | |
4854 | /* timeout active mbox command */ | |
4855 | mod_timer(&psli->mbox_tmo, (jiffies + | |
4856 | (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand)))); | |
4857 | } | |
4858 | ||
4859 | /* Mailbox cmd <cmd> issue */ | |
4860 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
4861 | "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x " | |
4862 | "x%x\n", | |
4863 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4864 | mb->mbxCommand, phba->pport->port_state, | |
4865 | psli->sli_flag, flag); | |
4866 | ||
4867 | if (mb->mbxCommand != MBX_HEARTBEAT) { | |
4868 | if (pmbox->vport) { | |
4869 | lpfc_debugfs_disc_trc(pmbox->vport, | |
4870 | LPFC_DISC_TRC_MBOX_VPORT, | |
4871 | "MBOX Send vport: cmd:x%x mb:x%x x%x", | |
4872 | (uint32_t)mb->mbxCommand, | |
4873 | mb->un.varWords[0], mb->un.varWords[1]); | |
4874 | } | |
4875 | else { | |
4876 | lpfc_debugfs_disc_trc(phba->pport, | |
4877 | LPFC_DISC_TRC_MBOX, | |
4878 | "MBOX Send: cmd:x%x mb:x%x x%x", | |
4879 | (uint32_t)mb->mbxCommand, | |
4880 | mb->un.varWords[0], mb->un.varWords[1]); | |
4881 | } | |
4882 | } | |
4883 | ||
4884 | psli->slistat.mbox_cmd++; | |
4885 | evtctr = psli->slistat.mbox_event; | |
4886 | ||
4887 | /* next set own bit for the adapter and copy over command word */ | |
4888 | mb->mbxOwner = OWN_CHIP; | |
4889 | ||
4890 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { | |
4891 | /* First copy command data to host SLIM area */ | |
4892 | lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE); | |
4893 | } else { | |
4894 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
4895 | /* copy command data into host mbox for cmpl */ | |
4896 | lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE); | |
4897 | } | |
4898 | ||
4899 | /* First copy mbox command data to HBA SLIM, skip past first | |
4900 | word */ | |
4901 | to_slim = phba->MBslimaddr + sizeof (uint32_t); | |
4902 | lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0], | |
4903 | MAILBOX_CMD_SIZE - sizeof (uint32_t)); | |
4904 | ||
4905 | /* Next copy over first word, with mbxOwner set */ | |
4906 | ldata = *((uint32_t *)mb); | |
4907 | to_slim = phba->MBslimaddr; | |
4908 | writel(ldata, to_slim); | |
4909 | readl(to_slim); /* flush */ | |
4910 | ||
4911 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
4912 | /* switch over to host mailbox */ | |
4913 | psli->sli_flag |= LPFC_SLI_ACTIVE; | |
4914 | } | |
4915 | } | |
4916 | ||
4917 | wmb(); | |
4918 | ||
4919 | switch (flag) { | |
4920 | case MBX_NOWAIT: | |
4921 | /* Set up reference to mailbox command */ | |
4922 | psli->mbox_active = pmbox; | |
4923 | /* Interrupt board to do it */ | |
4924 | writel(CA_MBATT, phba->CAregaddr); | |
4925 | readl(phba->CAregaddr); /* flush */ | |
4926 | /* Don't wait for it to finish, just return */ | |
4927 | break; | |
4928 | ||
4929 | case MBX_POLL: | |
4930 | /* Set up null reference to mailbox command */ | |
4931 | psli->mbox_active = NULL; | |
4932 | /* Interrupt board to do it */ | |
4933 | writel(CA_MBATT, phba->CAregaddr); | |
4934 | readl(phba->CAregaddr); /* flush */ | |
4935 | ||
4936 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { | |
4937 | /* First read mbox status word */ | |
4938 | word0 = *((uint32_t *)phba->mbox); | |
4939 | word0 = le32_to_cpu(word0); | |
4940 | } else { | |
4941 | /* First read mbox status word */ | |
4942 | word0 = readl(phba->MBslimaddr); | |
4943 | } | |
4944 | ||
4945 | /* Read the HBA Host Attention Register */ | |
4946 | ha_copy = readl(phba->HAregaddr); | |
4947 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, | |
4948 | mb->mbxCommand) * | |
4949 | 1000) + jiffies; | |
4950 | i = 0; | |
4951 | /* Wait for command to complete */ | |
4952 | while (((word0 & OWN_CHIP) == OWN_CHIP) || | |
4953 | (!(ha_copy & HA_MBATT) && | |
4954 | (phba->link_state > LPFC_WARM_START))) { | |
4955 | if (time_after(jiffies, timeout)) { | |
4956 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
4957 | spin_unlock_irqrestore(&phba->hbalock, | |
4958 | drvr_flag); | |
4959 | goto out_not_finished; | |
4960 | } | |
4961 | ||
4962 | /* Check if we took a mbox interrupt while we were | |
4963 | polling */ | |
4964 | if (((word0 & OWN_CHIP) != OWN_CHIP) | |
4965 | && (evtctr != psli->slistat.mbox_event)) | |
4966 | break; | |
4967 | ||
4968 | if (i++ > 10) { | |
4969 | spin_unlock_irqrestore(&phba->hbalock, | |
4970 | drvr_flag); | |
4971 | msleep(1); | |
4972 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
4973 | } | |
4974 | ||
4975 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { | |
4976 | /* First copy command data */ | |
4977 | word0 = *((uint32_t *)phba->mbox); | |
4978 | word0 = le32_to_cpu(word0); | |
4979 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
4980 | MAILBOX_t *slimmb; | |
4981 | uint32_t slimword0; | |
4982 | /* Check real SLIM for any errors */ | |
4983 | slimword0 = readl(phba->MBslimaddr); | |
4984 | slimmb = (MAILBOX_t *) & slimword0; | |
4985 | if (((slimword0 & OWN_CHIP) != OWN_CHIP) | |
4986 | && slimmb->mbxStatus) { | |
4987 | psli->sli_flag &= | |
4988 | ~LPFC_SLI_ACTIVE; | |
4989 | word0 = slimword0; | |
4990 | } | |
4991 | } | |
4992 | } else { | |
4993 | /* First copy command data */ | |
4994 | word0 = readl(phba->MBslimaddr); | |
4995 | } | |
4996 | /* Read the HBA Host Attention Register */ | |
4997 | ha_copy = readl(phba->HAregaddr); | |
4998 | } | |
4999 | ||
5000 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { | |
5001 | /* copy results back to user */ | |
5002 | lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE); | |
5003 | } else { | |
5004 | /* First copy command data */ | |
5005 | lpfc_memcpy_from_slim(mb, phba->MBslimaddr, | |
5006 | MAILBOX_CMD_SIZE); | |
5007 | if ((mb->mbxCommand == MBX_DUMP_MEMORY) && | |
5008 | pmbox->context2) { | |
5009 | lpfc_memcpy_from_slim((void *)pmbox->context2, | |
5010 | phba->MBslimaddr + DMP_RSP_OFFSET, | |
5011 | mb->un.varDmp.word_cnt); | |
5012 | } | |
5013 | } | |
5014 | ||
5015 | writel(HA_MBATT, phba->HAregaddr); | |
5016 | readl(phba->HAregaddr); /* flush */ | |
5017 | ||
5018 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
5019 | status = mb->mbxStatus; | |
5020 | } | |
5021 | ||
5022 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
5023 | return status; | |
5024 | ||
5025 | out_not_finished: | |
5026 | if (processing_queue) { | |
5027 | pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED; | |
5028 | lpfc_mbox_cmpl_put(phba, pmbox); | |
5029 | } | |
5030 | return MBX_NOT_FINISHED; | |
5031 | } | |
5032 | ||
5033 | /** | |
5034 | * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command | |
5035 | * @phba: Pointer to HBA context object. | |
5036 | * | |
5037 | * The function blocks the posting of SLI4 asynchronous mailbox commands from | |
5038 | * the driver internal pending mailbox queue. It will then try to wait out the | |
5039 | * possible outstanding mailbox command before return. | |
5040 | * | |
5041 | * Returns: | |
5042 | * 0 - the outstanding mailbox command completed; otherwise, the wait for | |
5043 | * the outstanding mailbox command timed out. | |
5044 | **/ | |
5045 | static int | |
5046 | lpfc_sli4_async_mbox_block(struct lpfc_hba *phba) | |
5047 | { | |
5048 | struct lpfc_sli *psli = &phba->sli; | |
5049 | uint8_t actcmd = MBX_HEARTBEAT; | |
5050 | int rc = 0; | |
5051 | unsigned long timeout; | |
5052 | ||
5053 | /* Mark the asynchronous mailbox command posting as blocked */ | |
5054 | spin_lock_irq(&phba->hbalock); | |
5055 | psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; | |
5056 | if (phba->sli.mbox_active) | |
5057 | actcmd = phba->sli.mbox_active->u.mb.mbxCommand; | |
5058 | spin_unlock_irq(&phba->hbalock); | |
5059 | /* Determine how long we might wait for the active mailbox | |
5060 | * command to be gracefully completed by firmware. | |
5061 | */ | |
5062 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) + | |
5063 | jiffies; | |
5064 | /* Wait for the outstnading mailbox command to complete */ | |
5065 | while (phba->sli.mbox_active) { | |
5066 | /* Check active mailbox complete status every 2ms */ | |
5067 | msleep(2); | |
5068 | if (time_after(jiffies, timeout)) { | |
5069 | /* Timeout, marked the outstanding cmd not complete */ | |
5070 | rc = 1; | |
5071 | break; | |
5072 | } | |
5073 | } | |
5074 | ||
5075 | /* Can not cleanly block async mailbox command, fails it */ | |
5076 | if (rc) { | |
5077 | spin_lock_irq(&phba->hbalock); | |
5078 | psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK; | |
5079 | spin_unlock_irq(&phba->hbalock); | |
5080 | } | |
5081 | return rc; | |
5082 | } | |
5083 | ||
5084 | /** | |
5085 | * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command | |
5086 | * @phba: Pointer to HBA context object. | |
5087 | * | |
5088 | * The function unblocks and resume posting of SLI4 asynchronous mailbox | |
5089 | * commands from the driver internal pending mailbox queue. It makes sure | |
5090 | * that there is no outstanding mailbox command before resuming posting | |
5091 | * asynchronous mailbox commands. If, for any reason, there is outstanding | |
5092 | * mailbox command, it will try to wait it out before resuming asynchronous | |
5093 | * mailbox command posting. | |
5094 | **/ | |
5095 | static void | |
5096 | lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba) | |
5097 | { | |
5098 | struct lpfc_sli *psli = &phba->sli; | |
5099 | ||
5100 | spin_lock_irq(&phba->hbalock); | |
5101 | if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) { | |
5102 | /* Asynchronous mailbox posting is not blocked, do nothing */ | |
5103 | spin_unlock_irq(&phba->hbalock); | |
5104 | return; | |
5105 | } | |
5106 | ||
5107 | /* Outstanding synchronous mailbox command is guaranteed to be done, | |
5108 | * successful or timeout, after timing-out the outstanding mailbox | |
5109 | * command shall always be removed, so just unblock posting async | |
5110 | * mailbox command and resume | |
5111 | */ | |
5112 | psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK; | |
5113 | spin_unlock_irq(&phba->hbalock); | |
5114 | ||
5115 | /* wake up worker thread to post asynchronlous mailbox command */ | |
5116 | lpfc_worker_wake_up(phba); | |
5117 | } | |
5118 | ||
5119 | /** | |
5120 | * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox | |
5121 | * @phba: Pointer to HBA context object. | |
5122 | * @mboxq: Pointer to mailbox object. | |
5123 | * | |
5124 | * The function posts a mailbox to the port. The mailbox is expected | |
5125 | * to be comletely filled in and ready for the port to operate on it. | |
5126 | * This routine executes a synchronous completion operation on the | |
5127 | * mailbox by polling for its completion. | |
5128 | * | |
5129 | * The caller must not be holding any locks when calling this routine. | |
5130 | * | |
5131 | * Returns: | |
5132 | * MBX_SUCCESS - mailbox posted successfully | |
5133 | * Any of the MBX error values. | |
5134 | **/ | |
5135 | static int | |
5136 | lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) | |
5137 | { | |
5138 | int rc = MBX_SUCCESS; | |
5139 | unsigned long iflag; | |
5140 | uint32_t db_ready; | |
5141 | uint32_t mcqe_status; | |
5142 | uint32_t mbx_cmnd; | |
5143 | unsigned long timeout; | |
5144 | struct lpfc_sli *psli = &phba->sli; | |
5145 | struct lpfc_mqe *mb = &mboxq->u.mqe; | |
5146 | struct lpfc_bmbx_create *mbox_rgn; | |
5147 | struct dma_address *dma_address; | |
5148 | struct lpfc_register bmbx_reg; | |
5149 | ||
5150 | /* | |
5151 | * Only one mailbox can be active to the bootstrap mailbox region | |
5152 | * at a time and there is no queueing provided. | |
5153 | */ | |
5154 | spin_lock_irqsave(&phba->hbalock, iflag); | |
5155 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { | |
5156 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
5157 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5158 | "(%d):2532 Mailbox command x%x (x%x) " | |
5159 | "cannot issue Data: x%x x%x\n", | |
5160 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5161 | mboxq->u.mb.mbxCommand, | |
5162 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5163 | psli->sli_flag, MBX_POLL); | |
5164 | return MBXERR_ERROR; | |
5165 | } | |
5166 | /* The server grabs the token and owns it until release */ | |
5167 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; | |
5168 | phba->sli.mbox_active = mboxq; | |
5169 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
5170 | ||
5171 | /* | |
5172 | * Initialize the bootstrap memory region to avoid stale data areas | |
5173 | * in the mailbox post. Then copy the caller's mailbox contents to | |
5174 | * the bmbx mailbox region. | |
5175 | */ | |
5176 | mbx_cmnd = bf_get(lpfc_mqe_command, mb); | |
5177 | memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create)); | |
5178 | lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt, | |
5179 | sizeof(struct lpfc_mqe)); | |
5180 | ||
5181 | /* Post the high mailbox dma address to the port and wait for ready. */ | |
5182 | dma_address = &phba->sli4_hba.bmbx.dma_address; | |
5183 | writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr); | |
5184 | ||
5185 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd) | |
5186 | * 1000) + jiffies; | |
5187 | do { | |
5188 | bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr); | |
5189 | db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg); | |
5190 | if (!db_ready) | |
5191 | msleep(2); | |
5192 | ||
5193 | if (time_after(jiffies, timeout)) { | |
5194 | rc = MBXERR_ERROR; | |
5195 | goto exit; | |
5196 | } | |
5197 | } while (!db_ready); | |
5198 | ||
5199 | /* Post the low mailbox dma address to the port. */ | |
5200 | writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr); | |
5201 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd) | |
5202 | * 1000) + jiffies; | |
5203 | do { | |
5204 | bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr); | |
5205 | db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg); | |
5206 | if (!db_ready) | |
5207 | msleep(2); | |
5208 | ||
5209 | if (time_after(jiffies, timeout)) { | |
5210 | rc = MBXERR_ERROR; | |
5211 | goto exit; | |
5212 | } | |
5213 | } while (!db_ready); | |
5214 | ||
5215 | /* | |
5216 | * Read the CQ to ensure the mailbox has completed. | |
5217 | * If so, update the mailbox status so that the upper layers | |
5218 | * can complete the request normally. | |
5219 | */ | |
5220 | lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb, | |
5221 | sizeof(struct lpfc_mqe)); | |
5222 | mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt; | |
5223 | lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe, | |
5224 | sizeof(struct lpfc_mcqe)); | |
5225 | mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe); | |
5226 | ||
5227 | /* Prefix the mailbox status with range x4000 to note SLI4 status. */ | |
5228 | if (mcqe_status != MB_CQE_STATUS_SUCCESS) { | |
5229 | bf_set(lpfc_mqe_status, mb, LPFC_MBX_ERROR_RANGE | mcqe_status); | |
5230 | rc = MBXERR_ERROR; | |
5231 | } | |
5232 | ||
5233 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
5234 | "(%d):0356 Mailbox cmd x%x (x%x) Status x%x " | |
5235 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x" | |
5236 | " x%x x%x CQ: x%x x%x x%x x%x\n", | |
5237 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5238 | mbx_cmnd, lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5239 | bf_get(lpfc_mqe_status, mb), | |
5240 | mb->un.mb_words[0], mb->un.mb_words[1], | |
5241 | mb->un.mb_words[2], mb->un.mb_words[3], | |
5242 | mb->un.mb_words[4], mb->un.mb_words[5], | |
5243 | mb->un.mb_words[6], mb->un.mb_words[7], | |
5244 | mb->un.mb_words[8], mb->un.mb_words[9], | |
5245 | mb->un.mb_words[10], mb->un.mb_words[11], | |
5246 | mb->un.mb_words[12], mboxq->mcqe.word0, | |
5247 | mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1, | |
5248 | mboxq->mcqe.trailer); | |
5249 | exit: | |
5250 | /* We are holding the token, no needed for lock when release */ | |
5251 | spin_lock_irqsave(&phba->hbalock, iflag); | |
5252 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
5253 | phba->sli.mbox_active = NULL; | |
5254 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
5255 | return rc; | |
5256 | } | |
5257 | ||
5258 | /** | |
5259 | * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware | |
5260 | * @phba: Pointer to HBA context object. | |
5261 | * @pmbox: Pointer to mailbox object. | |
5262 | * @flag: Flag indicating how the mailbox need to be processed. | |
5263 | * | |
5264 | * This function is called by discovery code and HBA management code to submit | |
5265 | * a mailbox command to firmware with SLI-4 interface spec. | |
5266 | * | |
5267 | * Return codes the caller owns the mailbox command after the return of the | |
5268 | * function. | |
5269 | **/ | |
5270 | static int | |
5271 | lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, | |
5272 | uint32_t flag) | |
5273 | { | |
5274 | struct lpfc_sli *psli = &phba->sli; | |
5275 | unsigned long iflags; | |
5276 | int rc; | |
5277 | ||
5278 | rc = lpfc_mbox_dev_check(phba); | |
5279 | if (unlikely(rc)) { | |
5280 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5281 | "(%d):2544 Mailbox command x%x (x%x) " | |
5282 | "cannot issue Data: x%x x%x\n", | |
5283 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5284 | mboxq->u.mb.mbxCommand, | |
5285 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5286 | psli->sli_flag, flag); | |
5287 | goto out_not_finished; | |
5288 | } | |
5289 | ||
5290 | /* Detect polling mode and jump to a handler */ | |
5291 | if (!phba->sli4_hba.intr_enable) { | |
5292 | if (flag == MBX_POLL) | |
5293 | rc = lpfc_sli4_post_sync_mbox(phba, mboxq); | |
5294 | else | |
5295 | rc = -EIO; | |
5296 | if (rc != MBX_SUCCESS) | |
5297 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5298 | "(%d):2541 Mailbox command x%x " | |
5299 | "(x%x) cannot issue Data: x%x x%x\n", | |
5300 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5301 | mboxq->u.mb.mbxCommand, | |
5302 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5303 | psli->sli_flag, flag); | |
5304 | return rc; | |
5305 | } else if (flag == MBX_POLL) { | |
5306 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, | |
5307 | "(%d):2542 Try to issue mailbox command " | |
5308 | "x%x (x%x) synchronously ahead of async" | |
5309 | "mailbox command queue: x%x x%x\n", | |
5310 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5311 | mboxq->u.mb.mbxCommand, | |
5312 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5313 | psli->sli_flag, flag); | |
5314 | /* Try to block the asynchronous mailbox posting */ | |
5315 | rc = lpfc_sli4_async_mbox_block(phba); | |
5316 | if (!rc) { | |
5317 | /* Successfully blocked, now issue sync mbox cmd */ | |
5318 | rc = lpfc_sli4_post_sync_mbox(phba, mboxq); | |
5319 | if (rc != MBX_SUCCESS) | |
5320 | lpfc_printf_log(phba, KERN_ERR, | |
5321 | LOG_MBOX | LOG_SLI, | |
5322 | "(%d):2597 Mailbox command " | |
5323 | "x%x (x%x) cannot issue " | |
5324 | "Data: x%x x%x\n", | |
5325 | mboxq->vport ? | |
5326 | mboxq->vport->vpi : 0, | |
5327 | mboxq->u.mb.mbxCommand, | |
5328 | lpfc_sli4_mbox_opcode_get(phba, | |
5329 | mboxq), | |
5330 | psli->sli_flag, flag); | |
5331 | /* Unblock the async mailbox posting afterward */ | |
5332 | lpfc_sli4_async_mbox_unblock(phba); | |
5333 | } | |
5334 | return rc; | |
5335 | } | |
5336 | ||
5337 | /* Now, interrupt mode asynchrous mailbox command */ | |
5338 | rc = lpfc_mbox_cmd_check(phba, mboxq); | |
5339 | if (rc) { | |
5340 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5341 | "(%d):2543 Mailbox command x%x (x%x) " | |
5342 | "cannot issue Data: x%x x%x\n", | |
5343 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5344 | mboxq->u.mb.mbxCommand, | |
5345 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5346 | psli->sli_flag, flag); | |
5347 | goto out_not_finished; | |
5348 | } | |
5349 | ||
5350 | /* Put the mailbox command to the driver internal FIFO */ | |
5351 | psli->slistat.mbox_busy++; | |
5352 | spin_lock_irqsave(&phba->hbalock, iflags); | |
5353 | lpfc_mbox_put(phba, mboxq); | |
5354 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5355 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
5356 | "(%d):0354 Mbox cmd issue - Enqueue Data: " | |
5357 | "x%x (x%x) x%x x%x x%x\n", | |
5358 | mboxq->vport ? mboxq->vport->vpi : 0xffffff, | |
5359 | bf_get(lpfc_mqe_command, &mboxq->u.mqe), | |
5360 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5361 | phba->pport->port_state, | |
5362 | psli->sli_flag, MBX_NOWAIT); | |
5363 | /* Wake up worker thread to transport mailbox command from head */ | |
5364 | lpfc_worker_wake_up(phba); | |
5365 | ||
5366 | return MBX_BUSY; | |
5367 | ||
5368 | out_not_finished: | |
5369 | return MBX_NOT_FINISHED; | |
5370 | } | |
5371 | ||
5372 | /** | |
5373 | * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device | |
5374 | * @phba: Pointer to HBA context object. | |
5375 | * | |
5376 | * This function is called by worker thread to send a mailbox command to | |
5377 | * SLI4 HBA firmware. | |
5378 | * | |
5379 | **/ | |
5380 | int | |
5381 | lpfc_sli4_post_async_mbox(struct lpfc_hba *phba) | |
5382 | { | |
5383 | struct lpfc_sli *psli = &phba->sli; | |
5384 | LPFC_MBOXQ_t *mboxq; | |
5385 | int rc = MBX_SUCCESS; | |
5386 | unsigned long iflags; | |
5387 | struct lpfc_mqe *mqe; | |
5388 | uint32_t mbx_cmnd; | |
5389 | ||
5390 | /* Check interrupt mode before post async mailbox command */ | |
5391 | if (unlikely(!phba->sli4_hba.intr_enable)) | |
5392 | return MBX_NOT_FINISHED; | |
5393 | ||
5394 | /* Check for mailbox command service token */ | |
5395 | spin_lock_irqsave(&phba->hbalock, iflags); | |
5396 | if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) { | |
5397 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5398 | return MBX_NOT_FINISHED; | |
5399 | } | |
5400 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { | |
5401 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5402 | return MBX_NOT_FINISHED; | |
5403 | } | |
5404 | if (unlikely(phba->sli.mbox_active)) { | |
5405 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5406 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5407 | "0384 There is pending active mailbox cmd\n"); | |
5408 | return MBX_NOT_FINISHED; | |
5409 | } | |
5410 | /* Take the mailbox command service token */ | |
5411 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; | |
5412 | ||
5413 | /* Get the next mailbox command from head of queue */ | |
5414 | mboxq = lpfc_mbox_get(phba); | |
5415 | ||
5416 | /* If no more mailbox command waiting for post, we're done */ | |
5417 | if (!mboxq) { | |
5418 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
5419 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5420 | return MBX_SUCCESS; | |
5421 | } | |
5422 | phba->sli.mbox_active = mboxq; | |
5423 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5424 | ||
5425 | /* Check device readiness for posting mailbox command */ | |
5426 | rc = lpfc_mbox_dev_check(phba); | |
5427 | if (unlikely(rc)) | |
5428 | /* Driver clean routine will clean up pending mailbox */ | |
5429 | goto out_not_finished; | |
5430 | ||
5431 | /* Prepare the mbox command to be posted */ | |
5432 | mqe = &mboxq->u.mqe; | |
5433 | mbx_cmnd = bf_get(lpfc_mqe_command, mqe); | |
5434 | ||
5435 | /* Start timer for the mbox_tmo and log some mailbox post messages */ | |
5436 | mod_timer(&psli->mbox_tmo, (jiffies + | |
5437 | (HZ * lpfc_mbox_tmo_val(phba, mbx_cmnd)))); | |
5438 | ||
5439 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
5440 | "(%d):0355 Mailbox cmd x%x (x%x) issue Data: " | |
5441 | "x%x x%x\n", | |
5442 | mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd, | |
5443 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5444 | phba->pport->port_state, psli->sli_flag); | |
5445 | ||
5446 | if (mbx_cmnd != MBX_HEARTBEAT) { | |
5447 | if (mboxq->vport) { | |
5448 | lpfc_debugfs_disc_trc(mboxq->vport, | |
5449 | LPFC_DISC_TRC_MBOX_VPORT, | |
5450 | "MBOX Send vport: cmd:x%x mb:x%x x%x", | |
5451 | mbx_cmnd, mqe->un.mb_words[0], | |
5452 | mqe->un.mb_words[1]); | |
5453 | } else { | |
5454 | lpfc_debugfs_disc_trc(phba->pport, | |
5455 | LPFC_DISC_TRC_MBOX, | |
5456 | "MBOX Send: cmd:x%x mb:x%x x%x", | |
5457 | mbx_cmnd, mqe->un.mb_words[0], | |
5458 | mqe->un.mb_words[1]); | |
5459 | } | |
5460 | } | |
5461 | psli->slistat.mbox_cmd++; | |
5462 | ||
5463 | /* Post the mailbox command to the port */ | |
5464 | rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe); | |
5465 | if (rc != MBX_SUCCESS) { | |
5466 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5467 | "(%d):2533 Mailbox command x%x (x%x) " | |
5468 | "cannot issue Data: x%x x%x\n", | |
5469 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5470 | mboxq->u.mb.mbxCommand, | |
5471 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5472 | psli->sli_flag, MBX_NOWAIT); | |
5473 | goto out_not_finished; | |
5474 | } | |
5475 | ||
5476 | return rc; | |
5477 | ||
5478 | out_not_finished: | |
5479 | spin_lock_irqsave(&phba->hbalock, iflags); | |
5480 | mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; | |
5481 | __lpfc_mbox_cmpl_put(phba, mboxq); | |
5482 | /* Release the token */ | |
5483 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
5484 | phba->sli.mbox_active = NULL; | |
5485 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5486 | ||
5487 | return MBX_NOT_FINISHED; | |
5488 | } | |
5489 | ||
5490 | /** | |
5491 | * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command | |
5492 | * @phba: Pointer to HBA context object. | |
5493 | * @pmbox: Pointer to mailbox object. | |
5494 | * @flag: Flag indicating how the mailbox need to be processed. | |
5495 | * | |
5496 | * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from | |
5497 | * the API jump table function pointer from the lpfc_hba struct. | |
5498 | * | |
5499 | * Return codes the caller owns the mailbox command after the return of the | |
5500 | * function. | |
5501 | **/ | |
5502 | int | |
5503 | lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag) | |
5504 | { | |
5505 | return phba->lpfc_sli_issue_mbox(phba, pmbox, flag); | |
5506 | } | |
5507 | ||
5508 | /** | |
5509 | * lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table | |
5510 | * @phba: The hba struct for which this call is being executed. | |
5511 | * @dev_grp: The HBA PCI-Device group number. | |
5512 | * | |
5513 | * This routine sets up the mbox interface API function jump table in @phba | |
5514 | * struct. | |
5515 | * Returns: 0 - success, -ENODEV - failure. | |
5516 | **/ | |
5517 | int | |
5518 | lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) | |
5519 | { | |
5520 | ||
5521 | switch (dev_grp) { | |
5522 | case LPFC_PCI_DEV_LP: | |
5523 | phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3; | |
5524 | phba->lpfc_sli_handle_slow_ring_event = | |
5525 | lpfc_sli_handle_slow_ring_event_s3; | |
5526 | phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3; | |
5527 | phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3; | |
5528 | phba->lpfc_sli_brdready = lpfc_sli_brdready_s3; | |
5529 | break; | |
5530 | case LPFC_PCI_DEV_OC: | |
5531 | phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4; | |
5532 | phba->lpfc_sli_handle_slow_ring_event = | |
5533 | lpfc_sli_handle_slow_ring_event_s4; | |
5534 | phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4; | |
5535 | phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4; | |
5536 | phba->lpfc_sli_brdready = lpfc_sli_brdready_s4; | |
5537 | break; | |
5538 | default: | |
5539 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5540 | "1420 Invalid HBA PCI-device group: 0x%x\n", | |
5541 | dev_grp); | |
5542 | return -ENODEV; | |
5543 | break; | |
5544 | } | |
5545 | return 0; | |
5546 | } | |
5547 | ||
5548 | /** | |
5549 | * __lpfc_sli_ringtx_put - Add an iocb to the txq | |
5550 | * @phba: Pointer to HBA context object. | |
5551 | * @pring: Pointer to driver SLI ring object. | |
5552 | * @piocb: Pointer to address of newly added command iocb. | |
5553 | * | |
5554 | * This function is called with hbalock held to add a command | |
5555 | * iocb to the txq when SLI layer cannot submit the command iocb | |
5556 | * to the ring. | |
5557 | **/ | |
5558 | static void | |
5559 | __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
5560 | struct lpfc_iocbq *piocb) | |
5561 | { | |
5562 | /* Insert the caller's iocb in the txq tail for later processing. */ | |
5563 | list_add_tail(&piocb->list, &pring->txq); | |
5564 | pring->txq_cnt++; | |
5565 | } | |
5566 | ||
5567 | /** | |
5568 | * lpfc_sli_next_iocb - Get the next iocb in the txq | |
5569 | * @phba: Pointer to HBA context object. | |
5570 | * @pring: Pointer to driver SLI ring object. | |
5571 | * @piocb: Pointer to address of newly added command iocb. | |
5572 | * | |
5573 | * This function is called with hbalock held before a new | |
5574 | * iocb is submitted to the firmware. This function checks | |
5575 | * txq to flush the iocbs in txq to Firmware before | |
5576 | * submitting new iocbs to the Firmware. | |
5577 | * If there are iocbs in the txq which need to be submitted | |
5578 | * to firmware, lpfc_sli_next_iocb returns the first element | |
5579 | * of the txq after dequeuing it from txq. | |
5580 | * If there is no iocb in the txq then the function will return | |
5581 | * *piocb and *piocb is set to NULL. Caller needs to check | |
5582 | * *piocb to find if there are more commands in the txq. | |
5583 | **/ | |
5584 | static struct lpfc_iocbq * | |
5585 | lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
5586 | struct lpfc_iocbq **piocb) | |
5587 | { | |
5588 | struct lpfc_iocbq * nextiocb; | |
5589 | ||
5590 | nextiocb = lpfc_sli_ringtx_get(phba, pring); | |
5591 | if (!nextiocb) { | |
5592 | nextiocb = *piocb; | |
5593 | *piocb = NULL; | |
5594 | } | |
5595 | ||
5596 | return nextiocb; | |
5597 | } | |
5598 | ||
5599 | /** | |
5600 | * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb | |
5601 | * @phba: Pointer to HBA context object. | |
5602 | * @ring_number: SLI ring number to issue iocb on. | |
5603 | * @piocb: Pointer to command iocb. | |
5604 | * @flag: Flag indicating if this command can be put into txq. | |
5605 | * | |
5606 | * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue | |
5607 | * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is | |
5608 | * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT | |
5609 | * flag is turned on, the function returns IOCB_ERROR. When the link is down, | |
5610 | * this function allows only iocbs for posting buffers. This function finds | |
5611 | * next available slot in the command ring and posts the command to the | |
5612 | * available slot and writes the port attention register to request HBA start | |
5613 | * processing new iocb. If there is no slot available in the ring and | |
5614 | * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise | |
5615 | * the function returns IOCB_BUSY. | |
5616 | * | |
5617 | * This function is called with hbalock held. The function will return success | |
5618 | * after it successfully submit the iocb to firmware or after adding to the | |
5619 | * txq. | |
5620 | **/ | |
5621 | static int | |
5622 | __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number, | |
5623 | struct lpfc_iocbq *piocb, uint32_t flag) | |
5624 | { | |
5625 | struct lpfc_iocbq *nextiocb; | |
5626 | IOCB_t *iocb; | |
5627 | struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number]; | |
5628 | ||
5629 | if (piocb->iocb_cmpl && (!piocb->vport) && | |
5630 | (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && | |
5631 | (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { | |
5632 | lpfc_printf_log(phba, KERN_ERR, | |
5633 | LOG_SLI | LOG_VPORT, | |
5634 | "1807 IOCB x%x failed. No vport\n", | |
5635 | piocb->iocb.ulpCommand); | |
5636 | dump_stack(); | |
5637 | return IOCB_ERROR; | |
5638 | } | |
5639 | ||
5640 | ||
5641 | /* If the PCI channel is in offline state, do not post iocbs. */ | |
5642 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
5643 | return IOCB_ERROR; | |
5644 | ||
5645 | /* If HBA has a deferred error attention, fail the iocb. */ | |
5646 | if (unlikely(phba->hba_flag & DEFER_ERATT)) | |
5647 | return IOCB_ERROR; | |
5648 | ||
5649 | /* | |
5650 | * We should never get an IOCB if we are in a < LINK_DOWN state | |
5651 | */ | |
5652 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) | |
5653 | return IOCB_ERROR; | |
5654 | ||
5655 | /* | |
5656 | * Check to see if we are blocking IOCB processing because of a | |
5657 | * outstanding event. | |
5658 | */ | |
5659 | if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT)) | |
5660 | goto iocb_busy; | |
5661 | ||
5662 | if (unlikely(phba->link_state == LPFC_LINK_DOWN)) { | |
5663 | /* | |
5664 | * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF | |
5665 | * can be issued if the link is not up. | |
5666 | */ | |
5667 | switch (piocb->iocb.ulpCommand) { | |
5668 | case CMD_GEN_REQUEST64_CR: | |
5669 | case CMD_GEN_REQUEST64_CX: | |
5670 | if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) || | |
5671 | (piocb->iocb.un.genreq64.w5.hcsw.Rctl != | |
5672 | FC_FCP_CMND) || | |
5673 | (piocb->iocb.un.genreq64.w5.hcsw.Type != | |
5674 | MENLO_TRANSPORT_TYPE)) | |
5675 | ||
5676 | goto iocb_busy; | |
5677 | break; | |
5678 | case CMD_QUE_RING_BUF_CN: | |
5679 | case CMD_QUE_RING_BUF64_CN: | |
5680 | /* | |
5681 | * For IOCBs, like QUE_RING_BUF, that have no rsp ring | |
5682 | * completion, iocb_cmpl MUST be 0. | |
5683 | */ | |
5684 | if (piocb->iocb_cmpl) | |
5685 | piocb->iocb_cmpl = NULL; | |
5686 | /*FALLTHROUGH*/ | |
5687 | case CMD_CREATE_XRI_CR: | |
5688 | case CMD_CLOSE_XRI_CN: | |
5689 | case CMD_CLOSE_XRI_CX: | |
5690 | break; | |
5691 | default: | |
5692 | goto iocb_busy; | |
5693 | } | |
5694 | ||
5695 | /* | |
5696 | * For FCP commands, we must be in a state where we can process link | |
5697 | * attention events. | |
5698 | */ | |
5699 | } else if (unlikely(pring->ringno == phba->sli.fcp_ring && | |
5700 | !(phba->sli.sli_flag & LPFC_PROCESS_LA))) { | |
5701 | goto iocb_busy; | |
5702 | } | |
5703 | ||
5704 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && | |
5705 | (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb))) | |
5706 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
5707 | ||
5708 | if (iocb) | |
5709 | lpfc_sli_update_ring(phba, pring); | |
5710 | else | |
5711 | lpfc_sli_update_full_ring(phba, pring); | |
5712 | ||
5713 | if (!piocb) | |
5714 | return IOCB_SUCCESS; | |
5715 | ||
5716 | goto out_busy; | |
5717 | ||
5718 | iocb_busy: | |
5719 | pring->stats.iocb_cmd_delay++; | |
5720 | ||
5721 | out_busy: | |
5722 | ||
5723 | if (!(flag & SLI_IOCB_RET_IOCB)) { | |
5724 | __lpfc_sli_ringtx_put(phba, pring, piocb); | |
5725 | return IOCB_SUCCESS; | |
5726 | } | |
5727 | ||
5728 | return IOCB_BUSY; | |
5729 | } | |
5730 | ||
5731 | /** | |
5732 | * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl. | |
5733 | * @phba: Pointer to HBA context object. | |
5734 | * @piocb: Pointer to command iocb. | |
5735 | * @sglq: Pointer to the scatter gather queue object. | |
5736 | * | |
5737 | * This routine converts the bpl or bde that is in the IOCB | |
5738 | * to a sgl list for the sli4 hardware. The physical address | |
5739 | * of the bpl/bde is converted back to a virtual address. | |
5740 | * If the IOCB contains a BPL then the list of BDE's is | |
5741 | * converted to sli4_sge's. If the IOCB contains a single | |
5742 | * BDE then it is converted to a single sli_sge. | |
5743 | * The IOCB is still in cpu endianess so the contents of | |
5744 | * the bpl can be used without byte swapping. | |
5745 | * | |
5746 | * Returns valid XRI = Success, NO_XRI = Failure. | |
5747 | **/ | |
5748 | static uint16_t | |
5749 | lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq, | |
5750 | struct lpfc_sglq *sglq) | |
5751 | { | |
5752 | uint16_t xritag = NO_XRI; | |
5753 | struct ulp_bde64 *bpl = NULL; | |
5754 | struct ulp_bde64 bde; | |
5755 | struct sli4_sge *sgl = NULL; | |
5756 | IOCB_t *icmd; | |
5757 | int numBdes = 0; | |
5758 | int i = 0; | |
5759 | ||
5760 | if (!piocbq || !sglq) | |
5761 | return xritag; | |
5762 | ||
5763 | sgl = (struct sli4_sge *)sglq->sgl; | |
5764 | icmd = &piocbq->iocb; | |
5765 | if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) { | |
5766 | numBdes = icmd->un.genreq64.bdl.bdeSize / | |
5767 | sizeof(struct ulp_bde64); | |
5768 | /* The addrHigh and addrLow fields within the IOCB | |
5769 | * have not been byteswapped yet so there is no | |
5770 | * need to swap them back. | |
5771 | */ | |
5772 | bpl = (struct ulp_bde64 *) | |
5773 | ((struct lpfc_dmabuf *)piocbq->context3)->virt; | |
5774 | ||
5775 | if (!bpl) | |
5776 | return xritag; | |
5777 | ||
5778 | for (i = 0; i < numBdes; i++) { | |
5779 | /* Should already be byte swapped. */ | |
5780 | sgl->addr_hi = bpl->addrHigh; | |
5781 | sgl->addr_lo = bpl->addrLow; | |
5782 | /* swap the size field back to the cpu so we | |
5783 | * can assign it to the sgl. | |
5784 | */ | |
5785 | bde.tus.w = le32_to_cpu(bpl->tus.w); | |
5786 | bf_set(lpfc_sli4_sge_len, sgl, bde.tus.f.bdeSize); | |
5787 | if ((i+1) == numBdes) | |
5788 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
5789 | else | |
5790 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
5791 | sgl->word2 = cpu_to_le32(sgl->word2); | |
5792 | sgl->word3 = cpu_to_le32(sgl->word3); | |
5793 | bpl++; | |
5794 | sgl++; | |
5795 | } | |
5796 | } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) { | |
5797 | /* The addrHigh and addrLow fields of the BDE have not | |
5798 | * been byteswapped yet so they need to be swapped | |
5799 | * before putting them in the sgl. | |
5800 | */ | |
5801 | sgl->addr_hi = | |
5802 | cpu_to_le32(icmd->un.genreq64.bdl.addrHigh); | |
5803 | sgl->addr_lo = | |
5804 | cpu_to_le32(icmd->un.genreq64.bdl.addrLow); | |
5805 | bf_set(lpfc_sli4_sge_len, sgl, | |
5806 | icmd->un.genreq64.bdl.bdeSize); | |
5807 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
5808 | sgl->word2 = cpu_to_le32(sgl->word2); | |
5809 | sgl->word3 = cpu_to_le32(sgl->word3); | |
5810 | } | |
5811 | return sglq->sli4_xritag; | |
5812 | } | |
5813 | ||
5814 | /** | |
5815 | * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution | |
5816 | * @phba: Pointer to HBA context object. | |
5817 | * | |
5818 | * This routine performs a round robin SCSI command to SLI4 FCP WQ index | |
5819 | * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock | |
5820 | * held. | |
5821 | * | |
5822 | * Return: index into SLI4 fast-path FCP queue index. | |
5823 | **/ | |
5824 | static uint32_t | |
5825 | lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba) | |
5826 | { | |
5827 | ++phba->fcp_qidx; | |
5828 | if (phba->fcp_qidx >= phba->cfg_fcp_wq_count) | |
5829 | phba->fcp_qidx = 0; | |
5830 | ||
5831 | return phba->fcp_qidx; | |
5832 | } | |
5833 | ||
5834 | /** | |
5835 | * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry. | |
5836 | * @phba: Pointer to HBA context object. | |
5837 | * @piocb: Pointer to command iocb. | |
5838 | * @wqe: Pointer to the work queue entry. | |
5839 | * | |
5840 | * This routine converts the iocb command to its Work Queue Entry | |
5841 | * equivalent. The wqe pointer should not have any fields set when | |
5842 | * this routine is called because it will memcpy over them. | |
5843 | * This routine does not set the CQ_ID or the WQEC bits in the | |
5844 | * wqe. | |
5845 | * | |
5846 | * Returns: 0 = Success, IOCB_ERROR = Failure. | |
5847 | **/ | |
5848 | static int | |
5849 | lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq, | |
5850 | union lpfc_wqe *wqe) | |
5851 | { | |
5852 | uint32_t payload_len = 0; | |
5853 | uint8_t ct = 0; | |
5854 | uint32_t fip; | |
5855 | uint32_t abort_tag; | |
5856 | uint8_t command_type = ELS_COMMAND_NON_FIP; | |
5857 | uint8_t cmnd; | |
5858 | uint16_t xritag; | |
5859 | struct ulp_bde64 *bpl = NULL; | |
5860 | ||
5861 | fip = bf_get(lpfc_fip_flag, &phba->sli4_hba.sli4_flags); | |
5862 | /* The fcp commands will set command type */ | |
5863 | if (iocbq->iocb_flag & LPFC_IO_FCP) | |
5864 | command_type = FCP_COMMAND; | |
5865 | else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS)) | |
5866 | command_type = ELS_COMMAND_FIP; | |
5867 | else | |
5868 | command_type = ELS_COMMAND_NON_FIP; | |
5869 | ||
5870 | /* Some of the fields are in the right position already */ | |
5871 | memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe)); | |
5872 | abort_tag = (uint32_t) iocbq->iotag; | |
5873 | xritag = iocbq->sli4_xritag; | |
5874 | wqe->words[7] = 0; /* The ct field has moved so reset */ | |
5875 | /* words0-2 bpl convert bde */ | |
5876 | if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) { | |
5877 | bpl = (struct ulp_bde64 *) | |
5878 | ((struct lpfc_dmabuf *)iocbq->context3)->virt; | |
5879 | if (!bpl) | |
5880 | return IOCB_ERROR; | |
5881 | ||
5882 | /* Should already be byte swapped. */ | |
5883 | wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh); | |
5884 | wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow); | |
5885 | /* swap the size field back to the cpu so we | |
5886 | * can assign it to the sgl. | |
5887 | */ | |
5888 | wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w); | |
5889 | payload_len = wqe->generic.bde.tus.f.bdeSize; | |
5890 | } else | |
5891 | payload_len = iocbq->iocb.un.fcpi64.bdl.bdeSize; | |
5892 | ||
5893 | iocbq->iocb.ulpIoTag = iocbq->iotag; | |
5894 | cmnd = iocbq->iocb.ulpCommand; | |
5895 | ||
5896 | switch (iocbq->iocb.ulpCommand) { | |
5897 | case CMD_ELS_REQUEST64_CR: | |
5898 | if (!iocbq->iocb.ulpLe) { | |
5899 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
5900 | "2007 Only Limited Edition cmd Format" | |
5901 | " supported 0x%x\n", | |
5902 | iocbq->iocb.ulpCommand); | |
5903 | return IOCB_ERROR; | |
5904 | } | |
5905 | wqe->els_req.payload_len = payload_len; | |
5906 | /* Els_reguest64 has a TMO */ | |
5907 | bf_set(wqe_tmo, &wqe->els_req.wqe_com, | |
5908 | iocbq->iocb.ulpTimeout); | |
5909 | /* Need a VF for word 4 set the vf bit*/ | |
5910 | bf_set(els_req64_vf, &wqe->els_req, 0); | |
5911 | /* And a VFID for word 12 */ | |
5912 | bf_set(els_req64_vfid, &wqe->els_req, 0); | |
5913 | /* | |
5914 | * Set ct field to 3, indicates that the context_tag field | |
5915 | * contains the FCFI and remote N_Port_ID is | |
5916 | * in word 5. | |
5917 | */ | |
5918 | ||
5919 | ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l); | |
5920 | bf_set(lpfc_wqe_gen_context, &wqe->generic, | |
5921 | iocbq->iocb.ulpContext); | |
5922 | ||
5923 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, ct); | |
5924 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0); | |
5925 | /* CCP CCPE PV PRI in word10 were set in the memcpy */ | |
5926 | break; | |
5927 | case CMD_XMIT_SEQUENCE64_CR: | |
5928 | /* word3 iocb=io_tag32 wqe=payload_offset */ | |
5929 | /* payload offset used for multilpe outstanding | |
5930 | * sequences on the same exchange | |
5931 | */ | |
5932 | wqe->words[3] = 0; | |
5933 | /* word4 relative_offset memcpy */ | |
5934 | /* word5 r_ctl/df_ctl memcpy */ | |
5935 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0); | |
5936 | wqe->xmit_sequence.xmit_len = payload_len; | |
5937 | break; | |
5938 | case CMD_XMIT_BCAST64_CN: | |
5939 | /* word3 iocb=iotag32 wqe=payload_len */ | |
5940 | wqe->words[3] = 0; /* no definition for this in wqe */ | |
5941 | /* word4 iocb=rsvd wqe=rsvd */ | |
5942 | /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */ | |
5943 | /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */ | |
5944 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, | |
5945 | ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l)); | |
5946 | break; | |
5947 | case CMD_FCP_IWRITE64_CR: | |
5948 | command_type = FCP_COMMAND_DATA_OUT; | |
5949 | /* The struct for wqe fcp_iwrite has 3 fields that are somewhat | |
5950 | * confusing. | |
5951 | * word3 is payload_len: byte offset to the sgl entry for the | |
5952 | * fcp_command. | |
5953 | * word4 is total xfer len, same as the IOCB->ulpParameter. | |
5954 | * word5 is initial xfer len 0 = wait for xfer-ready | |
5955 | */ | |
5956 | ||
5957 | /* Always wait for xfer-ready before sending data */ | |
5958 | wqe->fcp_iwrite.initial_xfer_len = 0; | |
5959 | /* word 4 (xfer length) should have been set on the memcpy */ | |
5960 | ||
5961 | /* allow write to fall through to read */ | |
5962 | case CMD_FCP_IREAD64_CR: | |
5963 | /* FCP_CMD is always the 1st sgl entry */ | |
5964 | wqe->fcp_iread.payload_len = | |
5965 | payload_len + sizeof(struct fcp_rsp); | |
5966 | ||
5967 | /* word 4 (xfer length) should have been set on the memcpy */ | |
5968 | ||
5969 | bf_set(lpfc_wqe_gen_erp, &wqe->generic, | |
5970 | iocbq->iocb.ulpFCP2Rcvy); | |
5971 | bf_set(lpfc_wqe_gen_lnk, &wqe->generic, iocbq->iocb.ulpXS); | |
5972 | /* The XC bit and the XS bit are similar. The driver never | |
5973 | * tracked whether or not the exchange was previouslly open. | |
5974 | * XC = Exchange create, 0 is create. 1 is already open. | |
5975 | * XS = link cmd: 1 do not close the exchange after command. | |
5976 | * XS = 0 close exchange when command completes. | |
5977 | * The only time we would not set the XC bit is when the XS bit | |
5978 | * is set and we are sending our 2nd or greater command on | |
5979 | * this exchange. | |
5980 | */ | |
5981 | /* Always open the exchange */ | |
5982 | bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0); | |
5983 | ||
5984 | wqe->words[10] &= 0xffff0000; /* zero out ebde count */ | |
5985 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU); | |
5986 | break; | |
5987 | case CMD_FCP_ICMND64_CR: | |
5988 | /* Always open the exchange */ | |
5989 | bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0); | |
5990 | ||
5991 | wqe->words[4] = 0; | |
5992 | wqe->words[10] &= 0xffff0000; /* zero out ebde count */ | |
5993 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0); | |
5994 | break; | |
5995 | case CMD_GEN_REQUEST64_CR: | |
5996 | /* word3 command length is described as byte offset to the | |
5997 | * rsp_data. Would always be 16, sizeof(struct sli4_sge) | |
5998 | * sgl[0] = cmnd | |
5999 | * sgl[1] = rsp. | |
6000 | * | |
6001 | */ | |
6002 | wqe->gen_req.command_len = payload_len; | |
6003 | /* Word4 parameter copied in the memcpy */ | |
6004 | /* Word5 [rctl, type, df_ctl, la] copied in memcpy */ | |
6005 | /* word6 context tag copied in memcpy */ | |
6006 | if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) { | |
6007 | ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l); | |
6008 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
6009 | "2015 Invalid CT %x command 0x%x\n", | |
6010 | ct, iocbq->iocb.ulpCommand); | |
6011 | return IOCB_ERROR; | |
6012 | } | |
6013 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, 0); | |
6014 | bf_set(wqe_tmo, &wqe->gen_req.wqe_com, | |
6015 | iocbq->iocb.ulpTimeout); | |
6016 | ||
6017 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU); | |
6018 | command_type = OTHER_COMMAND; | |
6019 | break; | |
6020 | case CMD_XMIT_ELS_RSP64_CX: | |
6021 | /* words0-2 BDE memcpy */ | |
6022 | /* word3 iocb=iotag32 wqe=rsvd */ | |
6023 | wqe->words[3] = 0; | |
6024 | /* word4 iocb=did wge=rsvd. */ | |
6025 | wqe->words[4] = 0; | |
6026 | /* word5 iocb=rsvd wge=did */ | |
6027 | bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest, | |
6028 | iocbq->iocb.un.elsreq64.remoteID); | |
6029 | ||
6030 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, | |
6031 | ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l)); | |
6032 | ||
6033 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU); | |
6034 | bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext); | |
6035 | if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l) | |
6036 | bf_set(lpfc_wqe_gen_context, &wqe->generic, | |
6037 | iocbq->vport->vpi + phba->vpi_base); | |
6038 | command_type = OTHER_COMMAND; | |
6039 | break; | |
6040 | case CMD_CLOSE_XRI_CN: | |
6041 | case CMD_ABORT_XRI_CN: | |
6042 | case CMD_ABORT_XRI_CX: | |
6043 | /* words 0-2 memcpy should be 0 rserved */ | |
6044 | /* port will send abts */ | |
6045 | if (iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) | |
6046 | /* | |
6047 | * The link is down so the fw does not need to send abts | |
6048 | * on the wire. | |
6049 | */ | |
6050 | bf_set(abort_cmd_ia, &wqe->abort_cmd, 1); | |
6051 | else | |
6052 | bf_set(abort_cmd_ia, &wqe->abort_cmd, 0); | |
6053 | bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG); | |
6054 | abort_tag = iocbq->iocb.un.acxri.abortIoTag; | |
6055 | wqe->words[5] = 0; | |
6056 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, | |
6057 | ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l)); | |
6058 | abort_tag = iocbq->iocb.un.acxri.abortIoTag; | |
6059 | wqe->generic.abort_tag = abort_tag; | |
6060 | /* | |
6061 | * The abort handler will send us CMD_ABORT_XRI_CN or | |
6062 | * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX | |
6063 | */ | |
6064 | bf_set(lpfc_wqe_gen_command, &wqe->generic, CMD_ABORT_XRI_CX); | |
6065 | cmnd = CMD_ABORT_XRI_CX; | |
6066 | command_type = OTHER_COMMAND; | |
6067 | xritag = 0; | |
6068 | break; | |
6069 | case CMD_XRI_ABORTED_CX: | |
6070 | case CMD_CREATE_XRI_CR: /* Do we expect to use this? */ | |
6071 | /* words0-2 are all 0's no bde */ | |
6072 | /* word3 and word4 are rsvrd */ | |
6073 | wqe->words[3] = 0; | |
6074 | wqe->words[4] = 0; | |
6075 | /* word5 iocb=rsvd wge=did */ | |
6076 | /* There is no remote port id in the IOCB? */ | |
6077 | /* Let this fall through and fail */ | |
6078 | case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */ | |
6079 | case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */ | |
6080 | case CMD_FCP_TRSP64_CX: /* Target mode rcv */ | |
6081 | case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */ | |
6082 | default: | |
6083 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
6084 | "2014 Invalid command 0x%x\n", | |
6085 | iocbq->iocb.ulpCommand); | |
6086 | return IOCB_ERROR; | |
6087 | break; | |
6088 | ||
6089 | } | |
6090 | bf_set(lpfc_wqe_gen_xri, &wqe->generic, xritag); | |
6091 | bf_set(lpfc_wqe_gen_request_tag, &wqe->generic, iocbq->iotag); | |
6092 | wqe->generic.abort_tag = abort_tag; | |
6093 | bf_set(lpfc_wqe_gen_cmd_type, &wqe->generic, command_type); | |
6094 | bf_set(lpfc_wqe_gen_command, &wqe->generic, cmnd); | |
6095 | bf_set(lpfc_wqe_gen_class, &wqe->generic, iocbq->iocb.ulpClass); | |
6096 | bf_set(lpfc_wqe_gen_cq_id, &wqe->generic, LPFC_WQE_CQ_ID_DEFAULT); | |
6097 | ||
6098 | return 0; | |
6099 | } | |
6100 | ||
6101 | /** | |
6102 | * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb | |
6103 | * @phba: Pointer to HBA context object. | |
6104 | * @ring_number: SLI ring number to issue iocb on. | |
6105 | * @piocb: Pointer to command iocb. | |
6106 | * @flag: Flag indicating if this command can be put into txq. | |
6107 | * | |
6108 | * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue | |
6109 | * an iocb command to an HBA with SLI-4 interface spec. | |
6110 | * | |
6111 | * This function is called with hbalock held. The function will return success | |
6112 | * after it successfully submit the iocb to firmware or after adding to the | |
6113 | * txq. | |
6114 | **/ | |
6115 | static int | |
6116 | __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number, | |
6117 | struct lpfc_iocbq *piocb, uint32_t flag) | |
6118 | { | |
6119 | struct lpfc_sglq *sglq; | |
6120 | uint16_t xritag; | |
6121 | union lpfc_wqe wqe; | |
6122 | struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number]; | |
6123 | uint32_t fcp_wqidx; | |
6124 | ||
6125 | if (piocb->sli4_xritag == NO_XRI) { | |
6126 | if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN || | |
6127 | piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN) | |
6128 | sglq = NULL; | |
6129 | else { | |
6130 | sglq = __lpfc_sli_get_sglq(phba); | |
6131 | if (!sglq) | |
6132 | return IOCB_ERROR; | |
6133 | piocb->sli4_xritag = sglq->sli4_xritag; | |
6134 | } | |
6135 | } else if (piocb->iocb_flag & LPFC_IO_FCP) { | |
6136 | sglq = NULL; /* These IO's already have an XRI and | |
6137 | * a mapped sgl. | |
6138 | */ | |
6139 | } else { | |
6140 | /* This is a continuation of a commandi,(CX) so this | |
6141 | * sglq is on the active list | |
6142 | */ | |
6143 | sglq = __lpfc_get_active_sglq(phba, piocb->sli4_xritag); | |
6144 | if (!sglq) | |
6145 | return IOCB_ERROR; | |
6146 | } | |
6147 | ||
6148 | if (sglq) { | |
6149 | xritag = lpfc_sli4_bpl2sgl(phba, piocb, sglq); | |
6150 | if (xritag != sglq->sli4_xritag) | |
6151 | return IOCB_ERROR; | |
6152 | } | |
6153 | ||
6154 | if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe)) | |
6155 | return IOCB_ERROR; | |
6156 | ||
6157 | if (piocb->iocb_flag & LPFC_IO_FCP) { | |
6158 | fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba); | |
6159 | if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[fcp_wqidx], &wqe)) | |
6160 | return IOCB_ERROR; | |
6161 | } else { | |
6162 | if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe)) | |
6163 | return IOCB_ERROR; | |
6164 | } | |
6165 | lpfc_sli_ringtxcmpl_put(phba, pring, piocb); | |
6166 | ||
6167 | return 0; | |
6168 | } | |
6169 | ||
6170 | /** | |
6171 | * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb | |
6172 | * | |
6173 | * This routine wraps the actual lockless version for issusing IOCB function | |
6174 | * pointer from the lpfc_hba struct. | |
6175 | * | |
6176 | * Return codes: | |
6177 | * IOCB_ERROR - Error | |
6178 | * IOCB_SUCCESS - Success | |
6179 | * IOCB_BUSY - Busy | |
6180 | **/ | |
6181 | static inline int | |
6182 | __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number, | |
6183 | struct lpfc_iocbq *piocb, uint32_t flag) | |
6184 | { | |
6185 | return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag); | |
6186 | } | |
6187 | ||
6188 | /** | |
6189 | * lpfc_sli_api_table_setup - Set up sli api fucntion jump table | |
6190 | * @phba: The hba struct for which this call is being executed. | |
6191 | * @dev_grp: The HBA PCI-Device group number. | |
6192 | * | |
6193 | * This routine sets up the SLI interface API function jump table in @phba | |
6194 | * struct. | |
6195 | * Returns: 0 - success, -ENODEV - failure. | |
6196 | **/ | |
6197 | int | |
6198 | lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) | |
6199 | { | |
6200 | ||
6201 | switch (dev_grp) { | |
6202 | case LPFC_PCI_DEV_LP: | |
6203 | phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3; | |
6204 | phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3; | |
6205 | break; | |
6206 | case LPFC_PCI_DEV_OC: | |
6207 | phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4; | |
6208 | phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4; | |
6209 | break; | |
6210 | default: | |
6211 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6212 | "1419 Invalid HBA PCI-device group: 0x%x\n", | |
6213 | dev_grp); | |
6214 | return -ENODEV; | |
6215 | break; | |
6216 | } | |
6217 | phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq; | |
6218 | return 0; | |
6219 | } | |
6220 | ||
6221 | /** | |
6222 | * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb | |
6223 | * @phba: Pointer to HBA context object. | |
6224 | * @pring: Pointer to driver SLI ring object. | |
6225 | * @piocb: Pointer to command iocb. | |
6226 | * @flag: Flag indicating if this command can be put into txq. | |
6227 | * | |
6228 | * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb | |
6229 | * function. This function gets the hbalock and calls | |
6230 | * __lpfc_sli_issue_iocb function and will return the error returned | |
6231 | * by __lpfc_sli_issue_iocb function. This wrapper is used by | |
6232 | * functions which do not hold hbalock. | |
6233 | **/ | |
6234 | int | |
6235 | lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number, | |
6236 | struct lpfc_iocbq *piocb, uint32_t flag) | |
6237 | { | |
6238 | unsigned long iflags; | |
6239 | int rc; | |
6240 | ||
6241 | spin_lock_irqsave(&phba->hbalock, iflags); | |
6242 | rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag); | |
6243 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
6244 | ||
6245 | return rc; | |
6246 | } | |
6247 | ||
6248 | /** | |
6249 | * lpfc_extra_ring_setup - Extra ring setup function | |
6250 | * @phba: Pointer to HBA context object. | |
6251 | * | |
6252 | * This function is called while driver attaches with the | |
6253 | * HBA to setup the extra ring. The extra ring is used | |
6254 | * only when driver needs to support target mode functionality | |
6255 | * or IP over FC functionalities. | |
6256 | * | |
6257 | * This function is called with no lock held. | |
6258 | **/ | |
6259 | static int | |
6260 | lpfc_extra_ring_setup( struct lpfc_hba *phba) | |
6261 | { | |
6262 | struct lpfc_sli *psli; | |
6263 | struct lpfc_sli_ring *pring; | |
6264 | ||
6265 | psli = &phba->sli; | |
6266 | ||
6267 | /* Adjust cmd/rsp ring iocb entries more evenly */ | |
6268 | ||
6269 | /* Take some away from the FCP ring */ | |
6270 | pring = &psli->ring[psli->fcp_ring]; | |
6271 | pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
6272 | pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
6273 | pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
6274 | pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
6275 | ||
6276 | /* and give them to the extra ring */ | |
6277 | pring = &psli->ring[psli->extra_ring]; | |
6278 | ||
6279 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
6280 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
6281 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
6282 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
6283 | ||
6284 | /* Setup default profile for this ring */ | |
6285 | pring->iotag_max = 4096; | |
6286 | pring->num_mask = 1; | |
6287 | pring->prt[0].profile = 0; /* Mask 0 */ | |
6288 | pring->prt[0].rctl = phba->cfg_multi_ring_rctl; | |
6289 | pring->prt[0].type = phba->cfg_multi_ring_type; | |
6290 | pring->prt[0].lpfc_sli_rcv_unsol_event = NULL; | |
6291 | return 0; | |
6292 | } | |
6293 | ||
6294 | /** | |
6295 | * lpfc_sli_async_event_handler - ASYNC iocb handler function | |
6296 | * @phba: Pointer to HBA context object. | |
6297 | * @pring: Pointer to driver SLI ring object. | |
6298 | * @iocbq: Pointer to iocb object. | |
6299 | * | |
6300 | * This function is called by the slow ring event handler | |
6301 | * function when there is an ASYNC event iocb in the ring. | |
6302 | * This function is called with no lock held. | |
6303 | * Currently this function handles only temperature related | |
6304 | * ASYNC events. The function decodes the temperature sensor | |
6305 | * event message and posts events for the management applications. | |
6306 | **/ | |
6307 | static void | |
6308 | lpfc_sli_async_event_handler(struct lpfc_hba * phba, | |
6309 | struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq) | |
6310 | { | |
6311 | IOCB_t *icmd; | |
6312 | uint16_t evt_code; | |
6313 | uint16_t temp; | |
6314 | struct temp_event temp_event_data; | |
6315 | struct Scsi_Host *shost; | |
6316 | uint32_t *iocb_w; | |
6317 | ||
6318 | icmd = &iocbq->iocb; | |
6319 | evt_code = icmd->un.asyncstat.evt_code; | |
6320 | temp = icmd->ulpContext; | |
6321 | ||
6322 | if ((evt_code != ASYNC_TEMP_WARN) && | |
6323 | (evt_code != ASYNC_TEMP_SAFE)) { | |
6324 | iocb_w = (uint32_t *) icmd; | |
6325 | lpfc_printf_log(phba, | |
6326 | KERN_ERR, | |
6327 | LOG_SLI, | |
6328 | "0346 Ring %d handler: unexpected ASYNC_STATUS" | |
6329 | " evt_code 0x%x\n" | |
6330 | "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n" | |
6331 | "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n" | |
6332 | "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n" | |
6333 | "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n", | |
6334 | pring->ringno, | |
6335 | icmd->un.asyncstat.evt_code, | |
6336 | iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3], | |
6337 | iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7], | |
6338 | iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11], | |
6339 | iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]); | |
6340 | ||
6341 | return; | |
6342 | } | |
6343 | temp_event_data.data = (uint32_t)temp; | |
6344 | temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; | |
6345 | if (evt_code == ASYNC_TEMP_WARN) { | |
6346 | temp_event_data.event_code = LPFC_THRESHOLD_TEMP; | |
6347 | lpfc_printf_log(phba, | |
6348 | KERN_ERR, | |
6349 | LOG_TEMP, | |
6350 | "0347 Adapter is very hot, please take " | |
6351 | "corrective action. temperature : %d Celsius\n", | |
6352 | temp); | |
6353 | } | |
6354 | if (evt_code == ASYNC_TEMP_SAFE) { | |
6355 | temp_event_data.event_code = LPFC_NORMAL_TEMP; | |
6356 | lpfc_printf_log(phba, | |
6357 | KERN_ERR, | |
6358 | LOG_TEMP, | |
6359 | "0340 Adapter temperature is OK now. " | |
6360 | "temperature : %d Celsius\n", | |
6361 | temp); | |
6362 | } | |
6363 | ||
6364 | /* Send temperature change event to applications */ | |
6365 | shost = lpfc_shost_from_vport(phba->pport); | |
6366 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
6367 | sizeof(temp_event_data), (char *) &temp_event_data, | |
6368 | LPFC_NL_VENDOR_ID); | |
6369 | ||
6370 | } | |
6371 | ||
6372 | ||
6373 | /** | |
6374 | * lpfc_sli_setup - SLI ring setup function | |
6375 | * @phba: Pointer to HBA context object. | |
6376 | * | |
6377 | * lpfc_sli_setup sets up rings of the SLI interface with | |
6378 | * number of iocbs per ring and iotags. This function is | |
6379 | * called while driver attach to the HBA and before the | |
6380 | * interrupts are enabled. So there is no need for locking. | |
6381 | * | |
6382 | * This function always returns 0. | |
6383 | **/ | |
6384 | int | |
6385 | lpfc_sli_setup(struct lpfc_hba *phba) | |
6386 | { | |
6387 | int i, totiocbsize = 0; | |
6388 | struct lpfc_sli *psli = &phba->sli; | |
6389 | struct lpfc_sli_ring *pring; | |
6390 | ||
6391 | psli->num_rings = MAX_CONFIGURED_RINGS; | |
6392 | psli->sli_flag = 0; | |
6393 | psli->fcp_ring = LPFC_FCP_RING; | |
6394 | psli->next_ring = LPFC_FCP_NEXT_RING; | |
6395 | psli->extra_ring = LPFC_EXTRA_RING; | |
6396 | ||
6397 | psli->iocbq_lookup = NULL; | |
6398 | psli->iocbq_lookup_len = 0; | |
6399 | psli->last_iotag = 0; | |
6400 | ||
6401 | for (i = 0; i < psli->num_rings; i++) { | |
6402 | pring = &psli->ring[i]; | |
6403 | switch (i) { | |
6404 | case LPFC_FCP_RING: /* ring 0 - FCP */ | |
6405 | /* numCiocb and numRiocb are used in config_port */ | |
6406 | pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES; | |
6407 | pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES; | |
6408 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
6409 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
6410 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
6411 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
6412 | pring->sizeCiocb = (phba->sli_rev == 3) ? | |
6413 | SLI3_IOCB_CMD_SIZE : | |
6414 | SLI2_IOCB_CMD_SIZE; | |
6415 | pring->sizeRiocb = (phba->sli_rev == 3) ? | |
6416 | SLI3_IOCB_RSP_SIZE : | |
6417 | SLI2_IOCB_RSP_SIZE; | |
6418 | pring->iotag_ctr = 0; | |
6419 | pring->iotag_max = | |
6420 | (phba->cfg_hba_queue_depth * 2); | |
6421 | pring->fast_iotag = pring->iotag_max; | |
6422 | pring->num_mask = 0; | |
6423 | break; | |
6424 | case LPFC_EXTRA_RING: /* ring 1 - EXTRA */ | |
6425 | /* numCiocb and numRiocb are used in config_port */ | |
6426 | pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES; | |
6427 | pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES; | |
6428 | pring->sizeCiocb = (phba->sli_rev == 3) ? | |
6429 | SLI3_IOCB_CMD_SIZE : | |
6430 | SLI2_IOCB_CMD_SIZE; | |
6431 | pring->sizeRiocb = (phba->sli_rev == 3) ? | |
6432 | SLI3_IOCB_RSP_SIZE : | |
6433 | SLI2_IOCB_RSP_SIZE; | |
6434 | pring->iotag_max = phba->cfg_hba_queue_depth; | |
6435 | pring->num_mask = 0; | |
6436 | break; | |
6437 | case LPFC_ELS_RING: /* ring 2 - ELS / CT */ | |
6438 | /* numCiocb and numRiocb are used in config_port */ | |
6439 | pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES; | |
6440 | pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES; | |
6441 | pring->sizeCiocb = (phba->sli_rev == 3) ? | |
6442 | SLI3_IOCB_CMD_SIZE : | |
6443 | SLI2_IOCB_CMD_SIZE; | |
6444 | pring->sizeRiocb = (phba->sli_rev == 3) ? | |
6445 | SLI3_IOCB_RSP_SIZE : | |
6446 | SLI2_IOCB_RSP_SIZE; | |
6447 | pring->fast_iotag = 0; | |
6448 | pring->iotag_ctr = 0; | |
6449 | pring->iotag_max = 4096; | |
6450 | pring->lpfc_sli_rcv_async_status = | |
6451 | lpfc_sli_async_event_handler; | |
6452 | pring->num_mask = 4; | |
6453 | pring->prt[0].profile = 0; /* Mask 0 */ | |
6454 | pring->prt[0].rctl = FC_ELS_REQ; | |
6455 | pring->prt[0].type = FC_ELS_DATA; | |
6456 | pring->prt[0].lpfc_sli_rcv_unsol_event = | |
6457 | lpfc_els_unsol_event; | |
6458 | pring->prt[1].profile = 0; /* Mask 1 */ | |
6459 | pring->prt[1].rctl = FC_ELS_RSP; | |
6460 | pring->prt[1].type = FC_ELS_DATA; | |
6461 | pring->prt[1].lpfc_sli_rcv_unsol_event = | |
6462 | lpfc_els_unsol_event; | |
6463 | pring->prt[2].profile = 0; /* Mask 2 */ | |
6464 | /* NameServer Inquiry */ | |
6465 | pring->prt[2].rctl = FC_UNSOL_CTL; | |
6466 | /* NameServer */ | |
6467 | pring->prt[2].type = FC_COMMON_TRANSPORT_ULP; | |
6468 | pring->prt[2].lpfc_sli_rcv_unsol_event = | |
6469 | lpfc_ct_unsol_event; | |
6470 | pring->prt[3].profile = 0; /* Mask 3 */ | |
6471 | /* NameServer response */ | |
6472 | pring->prt[3].rctl = FC_SOL_CTL; | |
6473 | /* NameServer */ | |
6474 | pring->prt[3].type = FC_COMMON_TRANSPORT_ULP; | |
6475 | pring->prt[3].lpfc_sli_rcv_unsol_event = | |
6476 | lpfc_ct_unsol_event; | |
6477 | break; | |
6478 | } | |
6479 | totiocbsize += (pring->numCiocb * pring->sizeCiocb) + | |
6480 | (pring->numRiocb * pring->sizeRiocb); | |
6481 | } | |
6482 | if (totiocbsize > MAX_SLIM_IOCB_SIZE) { | |
6483 | /* Too many cmd / rsp ring entries in SLI2 SLIM */ | |
6484 | printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in " | |
6485 | "SLI2 SLIM Data: x%x x%lx\n", | |
6486 | phba->brd_no, totiocbsize, | |
6487 | (unsigned long) MAX_SLIM_IOCB_SIZE); | |
6488 | } | |
6489 | if (phba->cfg_multi_ring_support == 2) | |
6490 | lpfc_extra_ring_setup(phba); | |
6491 | ||
6492 | return 0; | |
6493 | } | |
6494 | ||
6495 | /** | |
6496 | * lpfc_sli_queue_setup - Queue initialization function | |
6497 | * @phba: Pointer to HBA context object. | |
6498 | * | |
6499 | * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each | |
6500 | * ring. This function also initializes ring indices of each ring. | |
6501 | * This function is called during the initialization of the SLI | |
6502 | * interface of an HBA. | |
6503 | * This function is called with no lock held and always returns | |
6504 | * 1. | |
6505 | **/ | |
6506 | int | |
6507 | lpfc_sli_queue_setup(struct lpfc_hba *phba) | |
6508 | { | |
6509 | struct lpfc_sli *psli; | |
6510 | struct lpfc_sli_ring *pring; | |
6511 | int i; | |
6512 | ||
6513 | psli = &phba->sli; | |
6514 | spin_lock_irq(&phba->hbalock); | |
6515 | INIT_LIST_HEAD(&psli->mboxq); | |
6516 | INIT_LIST_HEAD(&psli->mboxq_cmpl); | |
6517 | /* Initialize list headers for txq and txcmplq as double linked lists */ | |
6518 | for (i = 0; i < psli->num_rings; i++) { | |
6519 | pring = &psli->ring[i]; | |
6520 | pring->ringno = i; | |
6521 | pring->next_cmdidx = 0; | |
6522 | pring->local_getidx = 0; | |
6523 | pring->cmdidx = 0; | |
6524 | INIT_LIST_HEAD(&pring->txq); | |
6525 | INIT_LIST_HEAD(&pring->txcmplq); | |
6526 | INIT_LIST_HEAD(&pring->iocb_continueq); | |
6527 | INIT_LIST_HEAD(&pring->iocb_continue_saveq); | |
6528 | INIT_LIST_HEAD(&pring->postbufq); | |
6529 | } | |
6530 | spin_unlock_irq(&phba->hbalock); | |
6531 | return 1; | |
6532 | } | |
6533 | ||
6534 | /** | |
6535 | * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system | |
6536 | * @phba: Pointer to HBA context object. | |
6537 | * | |
6538 | * This routine flushes the mailbox command subsystem. It will unconditionally | |
6539 | * flush all the mailbox commands in the three possible stages in the mailbox | |
6540 | * command sub-system: pending mailbox command queue; the outstanding mailbox | |
6541 | * command; and completed mailbox command queue. It is caller's responsibility | |
6542 | * to make sure that the driver is in the proper state to flush the mailbox | |
6543 | * command sub-system. Namely, the posting of mailbox commands into the | |
6544 | * pending mailbox command queue from the various clients must be stopped; | |
6545 | * either the HBA is in a state that it will never works on the outstanding | |
6546 | * mailbox command (such as in EEH or ERATT conditions) or the outstanding | |
6547 | * mailbox command has been completed. | |
6548 | **/ | |
6549 | static void | |
6550 | lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba) | |
6551 | { | |
6552 | LIST_HEAD(completions); | |
6553 | struct lpfc_sli *psli = &phba->sli; | |
6554 | LPFC_MBOXQ_t *pmb; | |
6555 | unsigned long iflag; | |
6556 | ||
6557 | /* Flush all the mailbox commands in the mbox system */ | |
6558 | spin_lock_irqsave(&phba->hbalock, iflag); | |
6559 | /* The pending mailbox command queue */ | |
6560 | list_splice_init(&phba->sli.mboxq, &completions); | |
6561 | /* The outstanding active mailbox command */ | |
6562 | if (psli->mbox_active) { | |
6563 | list_add_tail(&psli->mbox_active->list, &completions); | |
6564 | psli->mbox_active = NULL; | |
6565 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
6566 | } | |
6567 | /* The completed mailbox command queue */ | |
6568 | list_splice_init(&phba->sli.mboxq_cmpl, &completions); | |
6569 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
6570 | ||
6571 | /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */ | |
6572 | while (!list_empty(&completions)) { | |
6573 | list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list); | |
6574 | pmb->u.mb.mbxStatus = MBX_NOT_FINISHED; | |
6575 | if (pmb->mbox_cmpl) | |
6576 | pmb->mbox_cmpl(phba, pmb); | |
6577 | } | |
6578 | } | |
6579 | ||
6580 | /** | |
6581 | * lpfc_sli_host_down - Vport cleanup function | |
6582 | * @vport: Pointer to virtual port object. | |
6583 | * | |
6584 | * lpfc_sli_host_down is called to clean up the resources | |
6585 | * associated with a vport before destroying virtual | |
6586 | * port data structures. | |
6587 | * This function does following operations: | |
6588 | * - Free discovery resources associated with this virtual | |
6589 | * port. | |
6590 | * - Free iocbs associated with this virtual port in | |
6591 | * the txq. | |
6592 | * - Send abort for all iocb commands associated with this | |
6593 | * vport in txcmplq. | |
6594 | * | |
6595 | * This function is called with no lock held and always returns 1. | |
6596 | **/ | |
6597 | int | |
6598 | lpfc_sli_host_down(struct lpfc_vport *vport) | |
6599 | { | |
6600 | LIST_HEAD(completions); | |
6601 | struct lpfc_hba *phba = vport->phba; | |
6602 | struct lpfc_sli *psli = &phba->sli; | |
6603 | struct lpfc_sli_ring *pring; | |
6604 | struct lpfc_iocbq *iocb, *next_iocb; | |
6605 | int i; | |
6606 | unsigned long flags = 0; | |
6607 | uint16_t prev_pring_flag; | |
6608 | ||
6609 | lpfc_cleanup_discovery_resources(vport); | |
6610 | ||
6611 | spin_lock_irqsave(&phba->hbalock, flags); | |
6612 | for (i = 0; i < psli->num_rings; i++) { | |
6613 | pring = &psli->ring[i]; | |
6614 | prev_pring_flag = pring->flag; | |
6615 | /* Only slow rings */ | |
6616 | if (pring->ringno == LPFC_ELS_RING) { | |
6617 | pring->flag |= LPFC_DEFERRED_RING_EVENT; | |
6618 | /* Set the lpfc data pending flag */ | |
6619 | set_bit(LPFC_DATA_READY, &phba->data_flags); | |
6620 | } | |
6621 | /* | |
6622 | * Error everything on the txq since these iocbs have not been | |
6623 | * given to the FW yet. | |
6624 | */ | |
6625 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { | |
6626 | if (iocb->vport != vport) | |
6627 | continue; | |
6628 | list_move_tail(&iocb->list, &completions); | |
6629 | pring->txq_cnt--; | |
6630 | } | |
6631 | ||
6632 | /* Next issue ABTS for everything on the txcmplq */ | |
6633 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, | |
6634 | list) { | |
6635 | if (iocb->vport != vport) | |
6636 | continue; | |
6637 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
6638 | } | |
6639 | ||
6640 | pring->flag = prev_pring_flag; | |
6641 | } | |
6642 | ||
6643 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
6644 | ||
6645 | /* Cancel all the IOCBs from the completions list */ | |
6646 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6647 | IOERR_SLI_DOWN); | |
6648 | return 1; | |
6649 | } | |
6650 | ||
6651 | /** | |
6652 | * lpfc_sli_hba_down - Resource cleanup function for the HBA | |
6653 | * @phba: Pointer to HBA context object. | |
6654 | * | |
6655 | * This function cleans up all iocb, buffers, mailbox commands | |
6656 | * while shutting down the HBA. This function is called with no | |
6657 | * lock held and always returns 1. | |
6658 | * This function does the following to cleanup driver resources: | |
6659 | * - Free discovery resources for each virtual port | |
6660 | * - Cleanup any pending fabric iocbs | |
6661 | * - Iterate through the iocb txq and free each entry | |
6662 | * in the list. | |
6663 | * - Free up any buffer posted to the HBA | |
6664 | * - Free mailbox commands in the mailbox queue. | |
6665 | **/ | |
6666 | int | |
6667 | lpfc_sli_hba_down(struct lpfc_hba *phba) | |
6668 | { | |
6669 | LIST_HEAD(completions); | |
6670 | struct lpfc_sli *psli = &phba->sli; | |
6671 | struct lpfc_sli_ring *pring; | |
6672 | struct lpfc_dmabuf *buf_ptr; | |
6673 | unsigned long flags = 0; | |
6674 | int i; | |
6675 | ||
6676 | /* Shutdown the mailbox command sub-system */ | |
6677 | lpfc_sli_mbox_sys_shutdown(phba); | |
6678 | ||
6679 | lpfc_hba_down_prep(phba); | |
6680 | ||
6681 | lpfc_fabric_abort_hba(phba); | |
6682 | ||
6683 | spin_lock_irqsave(&phba->hbalock, flags); | |
6684 | for (i = 0; i < psli->num_rings; i++) { | |
6685 | pring = &psli->ring[i]; | |
6686 | /* Only slow rings */ | |
6687 | if (pring->ringno == LPFC_ELS_RING) { | |
6688 | pring->flag |= LPFC_DEFERRED_RING_EVENT; | |
6689 | /* Set the lpfc data pending flag */ | |
6690 | set_bit(LPFC_DATA_READY, &phba->data_flags); | |
6691 | } | |
6692 | ||
6693 | /* | |
6694 | * Error everything on the txq since these iocbs have not been | |
6695 | * given to the FW yet. | |
6696 | */ | |
6697 | list_splice_init(&pring->txq, &completions); | |
6698 | pring->txq_cnt = 0; | |
6699 | ||
6700 | } | |
6701 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
6702 | ||
6703 | /* Cancel all the IOCBs from the completions list */ | |
6704 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6705 | IOERR_SLI_DOWN); | |
6706 | ||
6707 | spin_lock_irqsave(&phba->hbalock, flags); | |
6708 | list_splice_init(&phba->elsbuf, &completions); | |
6709 | phba->elsbuf_cnt = 0; | |
6710 | phba->elsbuf_prev_cnt = 0; | |
6711 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
6712 | ||
6713 | while (!list_empty(&completions)) { | |
6714 | list_remove_head(&completions, buf_ptr, | |
6715 | struct lpfc_dmabuf, list); | |
6716 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
6717 | kfree(buf_ptr); | |
6718 | } | |
6719 | ||
6720 | /* Return any active mbox cmds */ | |
6721 | del_timer_sync(&psli->mbox_tmo); | |
6722 | ||
6723 | spin_lock_irqsave(&phba->pport->work_port_lock, flags); | |
6724 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; | |
6725 | spin_unlock_irqrestore(&phba->pport->work_port_lock, flags); | |
6726 | ||
6727 | return 1; | |
6728 | } | |
6729 | ||
6730 | /** | |
6731 | * lpfc_sli4_hba_down - PCI function resource cleanup for the SLI4 HBA | |
6732 | * @phba: Pointer to HBA context object. | |
6733 | * | |
6734 | * This function cleans up all queues, iocb, buffers, mailbox commands while | |
6735 | * shutting down the SLI4 HBA FCoE function. This function is called with no | |
6736 | * lock held and always returns 1. | |
6737 | * | |
6738 | * This function does the following to cleanup driver FCoE function resources: | |
6739 | * - Free discovery resources for each virtual port | |
6740 | * - Cleanup any pending fabric iocbs | |
6741 | * - Iterate through the iocb txq and free each entry in the list. | |
6742 | * - Free up any buffer posted to the HBA. | |
6743 | * - Clean up all the queue entries: WQ, RQ, MQ, EQ, CQ, etc. | |
6744 | * - Free mailbox commands in the mailbox queue. | |
6745 | **/ | |
6746 | int | |
6747 | lpfc_sli4_hba_down(struct lpfc_hba *phba) | |
6748 | { | |
6749 | /* Stop the SLI4 device port */ | |
6750 | lpfc_stop_port(phba); | |
6751 | ||
6752 | /* Tear down the queues in the HBA */ | |
6753 | lpfc_sli4_queue_unset(phba); | |
6754 | ||
6755 | /* unregister default FCFI from the HBA */ | |
6756 | lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi); | |
6757 | ||
6758 | return 1; | |
6759 | } | |
6760 | ||
6761 | /** | |
6762 | * lpfc_sli_pcimem_bcopy - SLI memory copy function | |
6763 | * @srcp: Source memory pointer. | |
6764 | * @destp: Destination memory pointer. | |
6765 | * @cnt: Number of words required to be copied. | |
6766 | * | |
6767 | * This function is used for copying data between driver memory | |
6768 | * and the SLI memory. This function also changes the endianness | |
6769 | * of each word if native endianness is different from SLI | |
6770 | * endianness. This function can be called with or without | |
6771 | * lock. | |
6772 | **/ | |
6773 | void | |
6774 | lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt) | |
6775 | { | |
6776 | uint32_t *src = srcp; | |
6777 | uint32_t *dest = destp; | |
6778 | uint32_t ldata; | |
6779 | int i; | |
6780 | ||
6781 | for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) { | |
6782 | ldata = *src; | |
6783 | ldata = le32_to_cpu(ldata); | |
6784 | *dest = ldata; | |
6785 | src++; | |
6786 | dest++; | |
6787 | } | |
6788 | } | |
6789 | ||
6790 | ||
6791 | /** | |
6792 | * lpfc_sli_bemem_bcopy - SLI memory copy function | |
6793 | * @srcp: Source memory pointer. | |
6794 | * @destp: Destination memory pointer. | |
6795 | * @cnt: Number of words required to be copied. | |
6796 | * | |
6797 | * This function is used for copying data between a data structure | |
6798 | * with big endian representation to local endianness. | |
6799 | * This function can be called with or without lock. | |
6800 | **/ | |
6801 | void | |
6802 | lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt) | |
6803 | { | |
6804 | uint32_t *src = srcp; | |
6805 | uint32_t *dest = destp; | |
6806 | uint32_t ldata; | |
6807 | int i; | |
6808 | ||
6809 | for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) { | |
6810 | ldata = *src; | |
6811 | ldata = be32_to_cpu(ldata); | |
6812 | *dest = ldata; | |
6813 | src++; | |
6814 | dest++; | |
6815 | } | |
6816 | } | |
6817 | ||
6818 | /** | |
6819 | * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq | |
6820 | * @phba: Pointer to HBA context object. | |
6821 | * @pring: Pointer to driver SLI ring object. | |
6822 | * @mp: Pointer to driver buffer object. | |
6823 | * | |
6824 | * This function is called with no lock held. | |
6825 | * It always return zero after adding the buffer to the postbufq | |
6826 | * buffer list. | |
6827 | **/ | |
6828 | int | |
6829 | lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
6830 | struct lpfc_dmabuf *mp) | |
6831 | { | |
6832 | /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up | |
6833 | later */ | |
6834 | spin_lock_irq(&phba->hbalock); | |
6835 | list_add_tail(&mp->list, &pring->postbufq); | |
6836 | pring->postbufq_cnt++; | |
6837 | spin_unlock_irq(&phba->hbalock); | |
6838 | return 0; | |
6839 | } | |
6840 | ||
6841 | /** | |
6842 | * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer | |
6843 | * @phba: Pointer to HBA context object. | |
6844 | * | |
6845 | * When HBQ is enabled, buffers are searched based on tags. This function | |
6846 | * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The | |
6847 | * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag | |
6848 | * does not conflict with tags of buffer posted for unsolicited events. | |
6849 | * The function returns the allocated tag. The function is called with | |
6850 | * no locks held. | |
6851 | **/ | |
6852 | uint32_t | |
6853 | lpfc_sli_get_buffer_tag(struct lpfc_hba *phba) | |
6854 | { | |
6855 | spin_lock_irq(&phba->hbalock); | |
6856 | phba->buffer_tag_count++; | |
6857 | /* | |
6858 | * Always set the QUE_BUFTAG_BIT to distiguish between | |
6859 | * a tag assigned by HBQ. | |
6860 | */ | |
6861 | phba->buffer_tag_count |= QUE_BUFTAG_BIT; | |
6862 | spin_unlock_irq(&phba->hbalock); | |
6863 | return phba->buffer_tag_count; | |
6864 | } | |
6865 | ||
6866 | /** | |
6867 | * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag | |
6868 | * @phba: Pointer to HBA context object. | |
6869 | * @pring: Pointer to driver SLI ring object. | |
6870 | * @tag: Buffer tag. | |
6871 | * | |
6872 | * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq | |
6873 | * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX | |
6874 | * iocb is posted to the response ring with the tag of the buffer. | |
6875 | * This function searches the pring->postbufq list using the tag | |
6876 | * to find buffer associated with CMD_IOCB_RET_XRI64_CX | |
6877 | * iocb. If the buffer is found then lpfc_dmabuf object of the | |
6878 | * buffer is returned to the caller else NULL is returned. | |
6879 | * This function is called with no lock held. | |
6880 | **/ | |
6881 | struct lpfc_dmabuf * | |
6882 | lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
6883 | uint32_t tag) | |
6884 | { | |
6885 | struct lpfc_dmabuf *mp, *next_mp; | |
6886 | struct list_head *slp = &pring->postbufq; | |
6887 | ||
6888 | /* Search postbufq, from the begining, looking for a match on tag */ | |
6889 | spin_lock_irq(&phba->hbalock); | |
6890 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { | |
6891 | if (mp->buffer_tag == tag) { | |
6892 | list_del_init(&mp->list); | |
6893 | pring->postbufq_cnt--; | |
6894 | spin_unlock_irq(&phba->hbalock); | |
6895 | return mp; | |
6896 | } | |
6897 | } | |
6898 | ||
6899 | spin_unlock_irq(&phba->hbalock); | |
6900 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6901 | "0402 Cannot find virtual addr for buffer tag on " | |
6902 | "ring %d Data x%lx x%p x%p x%x\n", | |
6903 | pring->ringno, (unsigned long) tag, | |
6904 | slp->next, slp->prev, pring->postbufq_cnt); | |
6905 | ||
6906 | return NULL; | |
6907 | } | |
6908 | ||
6909 | /** | |
6910 | * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events | |
6911 | * @phba: Pointer to HBA context object. | |
6912 | * @pring: Pointer to driver SLI ring object. | |
6913 | * @phys: DMA address of the buffer. | |
6914 | * | |
6915 | * This function searches the buffer list using the dma_address | |
6916 | * of unsolicited event to find the driver's lpfc_dmabuf object | |
6917 | * corresponding to the dma_address. The function returns the | |
6918 | * lpfc_dmabuf object if a buffer is found else it returns NULL. | |
6919 | * This function is called by the ct and els unsolicited event | |
6920 | * handlers to get the buffer associated with the unsolicited | |
6921 | * event. | |
6922 | * | |
6923 | * This function is called with no lock held. | |
6924 | **/ | |
6925 | struct lpfc_dmabuf * | |
6926 | lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
6927 | dma_addr_t phys) | |
6928 | { | |
6929 | struct lpfc_dmabuf *mp, *next_mp; | |
6930 | struct list_head *slp = &pring->postbufq; | |
6931 | ||
6932 | /* Search postbufq, from the begining, looking for a match on phys */ | |
6933 | spin_lock_irq(&phba->hbalock); | |
6934 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { | |
6935 | if (mp->phys == phys) { | |
6936 | list_del_init(&mp->list); | |
6937 | pring->postbufq_cnt--; | |
6938 | spin_unlock_irq(&phba->hbalock); | |
6939 | return mp; | |
6940 | } | |
6941 | } | |
6942 | ||
6943 | spin_unlock_irq(&phba->hbalock); | |
6944 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6945 | "0410 Cannot find virtual addr for mapped buf on " | |
6946 | "ring %d Data x%llx x%p x%p x%x\n", | |
6947 | pring->ringno, (unsigned long long)phys, | |
6948 | slp->next, slp->prev, pring->postbufq_cnt); | |
6949 | return NULL; | |
6950 | } | |
6951 | ||
6952 | /** | |
6953 | * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs | |
6954 | * @phba: Pointer to HBA context object. | |
6955 | * @cmdiocb: Pointer to driver command iocb object. | |
6956 | * @rspiocb: Pointer to driver response iocb object. | |
6957 | * | |
6958 | * This function is the completion handler for the abort iocbs for | |
6959 | * ELS commands. This function is called from the ELS ring event | |
6960 | * handler with no lock held. This function frees memory resources | |
6961 | * associated with the abort iocb. | |
6962 | **/ | |
6963 | static void | |
6964 | lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
6965 | struct lpfc_iocbq *rspiocb) | |
6966 | { | |
6967 | IOCB_t *irsp = &rspiocb->iocb; | |
6968 | uint16_t abort_iotag, abort_context; | |
6969 | struct lpfc_iocbq *abort_iocb; | |
6970 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
6971 | ||
6972 | abort_iocb = NULL; | |
6973 | ||
6974 | if (irsp->ulpStatus) { | |
6975 | abort_context = cmdiocb->iocb.un.acxri.abortContextTag; | |
6976 | abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag; | |
6977 | ||
6978 | spin_lock_irq(&phba->hbalock); | |
6979 | if (abort_iotag != 0 && abort_iotag <= phba->sli.last_iotag) | |
6980 | abort_iocb = phba->sli.iocbq_lookup[abort_iotag]; | |
6981 | ||
6982 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_SLI, | |
6983 | "0327 Cannot abort els iocb %p " | |
6984 | "with tag %x context %x, abort status %x, " | |
6985 | "abort code %x\n", | |
6986 | abort_iocb, abort_iotag, abort_context, | |
6987 | irsp->ulpStatus, irsp->un.ulpWord[4]); | |
6988 | ||
6989 | /* | |
6990 | * If the iocb is not found in Firmware queue the iocb | |
6991 | * might have completed already. Do not free it again. | |
6992 | */ | |
6993 | if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) { | |
6994 | spin_unlock_irq(&phba->hbalock); | |
6995 | lpfc_sli_release_iocbq(phba, cmdiocb); | |
6996 | return; | |
6997 | } | |
6998 | /* | |
6999 | * make sure we have the right iocbq before taking it | |
7000 | * off the txcmplq and try to call completion routine. | |
7001 | */ | |
7002 | if (!abort_iocb || | |
7003 | abort_iocb->iocb.ulpContext != abort_context || | |
7004 | (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0) | |
7005 | spin_unlock_irq(&phba->hbalock); | |
7006 | else { | |
7007 | list_del_init(&abort_iocb->list); | |
7008 | pring->txcmplq_cnt--; | |
7009 | spin_unlock_irq(&phba->hbalock); | |
7010 | ||
7011 | /* Firmware could still be in progress of DMAing | |
7012 | * payload, so don't free data buffer till after | |
7013 | * a hbeat. | |
7014 | */ | |
7015 | abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE; | |
7016 | ||
7017 | abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED; | |
7018 | abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; | |
7019 | abort_iocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED; | |
7020 | (abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb); | |
7021 | } | |
7022 | } | |
7023 | ||
7024 | lpfc_sli_release_iocbq(phba, cmdiocb); | |
7025 | return; | |
7026 | } | |
7027 | ||
7028 | /** | |
7029 | * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command | |
7030 | * @phba: Pointer to HBA context object. | |
7031 | * @cmdiocb: Pointer to driver command iocb object. | |
7032 | * @rspiocb: Pointer to driver response iocb object. | |
7033 | * | |
7034 | * The function is called from SLI ring event handler with no | |
7035 | * lock held. This function is the completion handler for ELS commands | |
7036 | * which are aborted. The function frees memory resources used for | |
7037 | * the aborted ELS commands. | |
7038 | **/ | |
7039 | static void | |
7040 | lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7041 | struct lpfc_iocbq *rspiocb) | |
7042 | { | |
7043 | IOCB_t *irsp = &rspiocb->iocb; | |
7044 | ||
7045 | /* ELS cmd tag <ulpIoTag> completes */ | |
7046 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
7047 | "0139 Ignoring ELS cmd tag x%x completion Data: " | |
7048 | "x%x x%x x%x\n", | |
7049 | irsp->ulpIoTag, irsp->ulpStatus, | |
7050 | irsp->un.ulpWord[4], irsp->ulpTimeout); | |
7051 | if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) | |
7052 | lpfc_ct_free_iocb(phba, cmdiocb); | |
7053 | else | |
7054 | lpfc_els_free_iocb(phba, cmdiocb); | |
7055 | return; | |
7056 | } | |
7057 | ||
7058 | /** | |
7059 | * lpfc_sli_issue_abort_iotag - Abort function for a command iocb | |
7060 | * @phba: Pointer to HBA context object. | |
7061 | * @pring: Pointer to driver SLI ring object. | |
7062 | * @cmdiocb: Pointer to driver command iocb object. | |
7063 | * | |
7064 | * This function issues an abort iocb for the provided command | |
7065 | * iocb. This function is called with hbalock held. | |
7066 | * The function returns 0 when it fails due to memory allocation | |
7067 | * failure or when the command iocb is an abort request. | |
7068 | **/ | |
7069 | int | |
7070 | lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
7071 | struct lpfc_iocbq *cmdiocb) | |
7072 | { | |
7073 | struct lpfc_vport *vport = cmdiocb->vport; | |
7074 | struct lpfc_iocbq *abtsiocbp; | |
7075 | IOCB_t *icmd = NULL; | |
7076 | IOCB_t *iabt = NULL; | |
7077 | int retval = IOCB_ERROR; | |
7078 | ||
7079 | /* | |
7080 | * There are certain command types we don't want to abort. And we | |
7081 | * don't want to abort commands that are already in the process of | |
7082 | * being aborted. | |
7083 | */ | |
7084 | icmd = &cmdiocb->iocb; | |
7085 | if (icmd->ulpCommand == CMD_ABORT_XRI_CN || | |
7086 | icmd->ulpCommand == CMD_CLOSE_XRI_CN || | |
7087 | (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0) | |
7088 | return 0; | |
7089 | ||
7090 | /* If we're unloading, don't abort iocb on the ELS ring, but change the | |
7091 | * callback so that nothing happens when it finishes. | |
7092 | */ | |
7093 | if ((vport->load_flag & FC_UNLOADING) && | |
7094 | (pring->ringno == LPFC_ELS_RING)) { | |
7095 | if (cmdiocb->iocb_flag & LPFC_IO_FABRIC) | |
7096 | cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl; | |
7097 | else | |
7098 | cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl; | |
7099 | goto abort_iotag_exit; | |
7100 | } | |
7101 | ||
7102 | /* issue ABTS for this IOCB based on iotag */ | |
7103 | abtsiocbp = __lpfc_sli_get_iocbq(phba); | |
7104 | if (abtsiocbp == NULL) | |
7105 | return 0; | |
7106 | ||
7107 | /* This signals the response to set the correct status | |
7108 | * before calling the completion handler. | |
7109 | */ | |
7110 | cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED; | |
7111 | ||
7112 | iabt = &abtsiocbp->iocb; | |
7113 | iabt->un.acxri.abortType = ABORT_TYPE_ABTS; | |
7114 | iabt->un.acxri.abortContextTag = icmd->ulpContext; | |
7115 | if (phba->sli_rev == LPFC_SLI_REV4) | |
7116 | iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag; | |
7117 | else | |
7118 | iabt->un.acxri.abortIoTag = icmd->ulpIoTag; | |
7119 | iabt->ulpLe = 1; | |
7120 | iabt->ulpClass = icmd->ulpClass; | |
7121 | ||
7122 | if (phba->link_state >= LPFC_LINK_UP) | |
7123 | iabt->ulpCommand = CMD_ABORT_XRI_CN; | |
7124 | else | |
7125 | iabt->ulpCommand = CMD_CLOSE_XRI_CN; | |
7126 | ||
7127 | abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl; | |
7128 | ||
7129 | lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, | |
7130 | "0339 Abort xri x%x, original iotag x%x, " | |
7131 | "abort cmd iotag x%x\n", | |
7132 | iabt->un.acxri.abortContextTag, | |
7133 | iabt->un.acxri.abortIoTag, abtsiocbp->iotag); | |
7134 | retval = __lpfc_sli_issue_iocb(phba, pring->ringno, abtsiocbp, 0); | |
7135 | ||
7136 | if (retval) | |
7137 | __lpfc_sli_release_iocbq(phba, abtsiocbp); | |
7138 | abort_iotag_exit: | |
7139 | /* | |
7140 | * Caller to this routine should check for IOCB_ERROR | |
7141 | * and handle it properly. This routine no longer removes | |
7142 | * iocb off txcmplq and call compl in case of IOCB_ERROR. | |
7143 | */ | |
7144 | return retval; | |
7145 | } | |
7146 | ||
7147 | /** | |
7148 | * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN | |
7149 | * @iocbq: Pointer to driver iocb object. | |
7150 | * @vport: Pointer to driver virtual port object. | |
7151 | * @tgt_id: SCSI ID of the target. | |
7152 | * @lun_id: LUN ID of the scsi device. | |
7153 | * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST | |
7154 | * | |
7155 | * This function acts as an iocb filter for functions which abort or count | |
7156 | * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return | |
7157 | * 0 if the filtering criteria is met for the given iocb and will return | |
7158 | * 1 if the filtering criteria is not met. | |
7159 | * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the | |
7160 | * given iocb is for the SCSI device specified by vport, tgt_id and | |
7161 | * lun_id parameter. | |
7162 | * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the | |
7163 | * given iocb is for the SCSI target specified by vport and tgt_id | |
7164 | * parameters. | |
7165 | * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the | |
7166 | * given iocb is for the SCSI host associated with the given vport. | |
7167 | * This function is called with no locks held. | |
7168 | **/ | |
7169 | static int | |
7170 | lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport, | |
7171 | uint16_t tgt_id, uint64_t lun_id, | |
7172 | lpfc_ctx_cmd ctx_cmd) | |
7173 | { | |
7174 | struct lpfc_scsi_buf *lpfc_cmd; | |
7175 | int rc = 1; | |
7176 | ||
7177 | if (!(iocbq->iocb_flag & LPFC_IO_FCP)) | |
7178 | return rc; | |
7179 | ||
7180 | if (iocbq->vport != vport) | |
7181 | return rc; | |
7182 | ||
7183 | lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq); | |
7184 | ||
7185 | if (lpfc_cmd->pCmd == NULL) | |
7186 | return rc; | |
7187 | ||
7188 | switch (ctx_cmd) { | |
7189 | case LPFC_CTX_LUN: | |
7190 | if ((lpfc_cmd->rdata->pnode) && | |
7191 | (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) && | |
7192 | (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id)) | |
7193 | rc = 0; | |
7194 | break; | |
7195 | case LPFC_CTX_TGT: | |
7196 | if ((lpfc_cmd->rdata->pnode) && | |
7197 | (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id)) | |
7198 | rc = 0; | |
7199 | break; | |
7200 | case LPFC_CTX_HOST: | |
7201 | rc = 0; | |
7202 | break; | |
7203 | default: | |
7204 | printk(KERN_ERR "%s: Unknown context cmd type, value %d\n", | |
7205 | __func__, ctx_cmd); | |
7206 | break; | |
7207 | } | |
7208 | ||
7209 | return rc; | |
7210 | } | |
7211 | ||
7212 | /** | |
7213 | * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending | |
7214 | * @vport: Pointer to virtual port. | |
7215 | * @tgt_id: SCSI ID of the target. | |
7216 | * @lun_id: LUN ID of the scsi device. | |
7217 | * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST. | |
7218 | * | |
7219 | * This function returns number of FCP commands pending for the vport. | |
7220 | * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP | |
7221 | * commands pending on the vport associated with SCSI device specified | |
7222 | * by tgt_id and lun_id parameters. | |
7223 | * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP | |
7224 | * commands pending on the vport associated with SCSI target specified | |
7225 | * by tgt_id parameter. | |
7226 | * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP | |
7227 | * commands pending on the vport. | |
7228 | * This function returns the number of iocbs which satisfy the filter. | |
7229 | * This function is called without any lock held. | |
7230 | **/ | |
7231 | int | |
7232 | lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id, | |
7233 | lpfc_ctx_cmd ctx_cmd) | |
7234 | { | |
7235 | struct lpfc_hba *phba = vport->phba; | |
7236 | struct lpfc_iocbq *iocbq; | |
7237 | int sum, i; | |
7238 | ||
7239 | for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) { | |
7240 | iocbq = phba->sli.iocbq_lookup[i]; | |
7241 | ||
7242 | if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id, | |
7243 | ctx_cmd) == 0) | |
7244 | sum++; | |
7245 | } | |
7246 | ||
7247 | return sum; | |
7248 | } | |
7249 | ||
7250 | /** | |
7251 | * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs | |
7252 | * @phba: Pointer to HBA context object | |
7253 | * @cmdiocb: Pointer to command iocb object. | |
7254 | * @rspiocb: Pointer to response iocb object. | |
7255 | * | |
7256 | * This function is called when an aborted FCP iocb completes. This | |
7257 | * function is called by the ring event handler with no lock held. | |
7258 | * This function frees the iocb. | |
7259 | **/ | |
7260 | void | |
7261 | lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7262 | struct lpfc_iocbq *rspiocb) | |
7263 | { | |
7264 | lpfc_sli_release_iocbq(phba, cmdiocb); | |
7265 | return; | |
7266 | } | |
7267 | ||
7268 | /** | |
7269 | * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN | |
7270 | * @vport: Pointer to virtual port. | |
7271 | * @pring: Pointer to driver SLI ring object. | |
7272 | * @tgt_id: SCSI ID of the target. | |
7273 | * @lun_id: LUN ID of the scsi device. | |
7274 | * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST. | |
7275 | * | |
7276 | * This function sends an abort command for every SCSI command | |
7277 | * associated with the given virtual port pending on the ring | |
7278 | * filtered by lpfc_sli_validate_fcp_iocb function. | |
7279 | * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the | |
7280 | * FCP iocbs associated with lun specified by tgt_id and lun_id | |
7281 | * parameters | |
7282 | * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the | |
7283 | * FCP iocbs associated with SCSI target specified by tgt_id parameter. | |
7284 | * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all | |
7285 | * FCP iocbs associated with virtual port. | |
7286 | * This function returns number of iocbs it failed to abort. | |
7287 | * This function is called with no locks held. | |
7288 | **/ | |
7289 | int | |
7290 | lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring, | |
7291 | uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd) | |
7292 | { | |
7293 | struct lpfc_hba *phba = vport->phba; | |
7294 | struct lpfc_iocbq *iocbq; | |
7295 | struct lpfc_iocbq *abtsiocb; | |
7296 | IOCB_t *cmd = NULL; | |
7297 | int errcnt = 0, ret_val = 0; | |
7298 | int i; | |
7299 | ||
7300 | for (i = 1; i <= phba->sli.last_iotag; i++) { | |
7301 | iocbq = phba->sli.iocbq_lookup[i]; | |
7302 | ||
7303 | if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id, | |
7304 | abort_cmd) != 0) | |
7305 | continue; | |
7306 | ||
7307 | /* issue ABTS for this IOCB based on iotag */ | |
7308 | abtsiocb = lpfc_sli_get_iocbq(phba); | |
7309 | if (abtsiocb == NULL) { | |
7310 | errcnt++; | |
7311 | continue; | |
7312 | } | |
7313 | ||
7314 | cmd = &iocbq->iocb; | |
7315 | abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS; | |
7316 | abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext; | |
7317 | if (phba->sli_rev == LPFC_SLI_REV4) | |
7318 | abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag; | |
7319 | else | |
7320 | abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag; | |
7321 | abtsiocb->iocb.ulpLe = 1; | |
7322 | abtsiocb->iocb.ulpClass = cmd->ulpClass; | |
7323 | abtsiocb->vport = phba->pport; | |
7324 | ||
7325 | if (lpfc_is_link_up(phba)) | |
7326 | abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN; | |
7327 | else | |
7328 | abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN; | |
7329 | ||
7330 | /* Setup callback routine and issue the command. */ | |
7331 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; | |
7332 | ret_val = lpfc_sli_issue_iocb(phba, pring->ringno, | |
7333 | abtsiocb, 0); | |
7334 | if (ret_val == IOCB_ERROR) { | |
7335 | lpfc_sli_release_iocbq(phba, abtsiocb); | |
7336 | errcnt++; | |
7337 | continue; | |
7338 | } | |
7339 | } | |
7340 | ||
7341 | return errcnt; | |
7342 | } | |
7343 | ||
7344 | /** | |
7345 | * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler | |
7346 | * @phba: Pointer to HBA context object. | |
7347 | * @cmdiocbq: Pointer to command iocb. | |
7348 | * @rspiocbq: Pointer to response iocb. | |
7349 | * | |
7350 | * This function is the completion handler for iocbs issued using | |
7351 | * lpfc_sli_issue_iocb_wait function. This function is called by the | |
7352 | * ring event handler function without any lock held. This function | |
7353 | * can be called from both worker thread context and interrupt | |
7354 | * context. This function also can be called from other thread which | |
7355 | * cleans up the SLI layer objects. | |
7356 | * This function copy the contents of the response iocb to the | |
7357 | * response iocb memory object provided by the caller of | |
7358 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
7359 | * sleeps for the iocb completion. | |
7360 | **/ | |
7361 | static void | |
7362 | lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba, | |
7363 | struct lpfc_iocbq *cmdiocbq, | |
7364 | struct lpfc_iocbq *rspiocbq) | |
7365 | { | |
7366 | wait_queue_head_t *pdone_q; | |
7367 | unsigned long iflags; | |
7368 | ||
7369 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7370 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; | |
7371 | if (cmdiocbq->context2 && rspiocbq) | |
7372 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
7373 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
7374 | ||
7375 | pdone_q = cmdiocbq->context_un.wait_queue; | |
7376 | if (pdone_q) | |
7377 | wake_up(pdone_q); | |
7378 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
7379 | return; | |
7380 | } | |
7381 | ||
7382 | /** | |
7383 | * lpfc_chk_iocb_flg - Test IOCB flag with lock held. | |
7384 | * @phba: Pointer to HBA context object.. | |
7385 | * @piocbq: Pointer to command iocb. | |
7386 | * @flag: Flag to test. | |
7387 | * | |
7388 | * This routine grabs the hbalock and then test the iocb_flag to | |
7389 | * see if the passed in flag is set. | |
7390 | * Returns: | |
7391 | * 1 if flag is set. | |
7392 | * 0 if flag is not set. | |
7393 | **/ | |
7394 | static int | |
7395 | lpfc_chk_iocb_flg(struct lpfc_hba *phba, | |
7396 | struct lpfc_iocbq *piocbq, uint32_t flag) | |
7397 | { | |
7398 | unsigned long iflags; | |
7399 | int ret; | |
7400 | ||
7401 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7402 | ret = piocbq->iocb_flag & flag; | |
7403 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
7404 | return ret; | |
7405 | ||
7406 | } | |
7407 | ||
7408 | /** | |
7409 | * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands | |
7410 | * @phba: Pointer to HBA context object.. | |
7411 | * @pring: Pointer to sli ring. | |
7412 | * @piocb: Pointer to command iocb. | |
7413 | * @prspiocbq: Pointer to response iocb. | |
7414 | * @timeout: Timeout in number of seconds. | |
7415 | * | |
7416 | * This function issues the iocb to firmware and waits for the | |
7417 | * iocb to complete. If the iocb command is not | |
7418 | * completed within timeout seconds, it returns IOCB_TIMEDOUT. | |
7419 | * Caller should not free the iocb resources if this function | |
7420 | * returns IOCB_TIMEDOUT. | |
7421 | * The function waits for the iocb completion using an | |
7422 | * non-interruptible wait. | |
7423 | * This function will sleep while waiting for iocb completion. | |
7424 | * So, this function should not be called from any context which | |
7425 | * does not allow sleeping. Due to the same reason, this function | |
7426 | * cannot be called with interrupt disabled. | |
7427 | * This function assumes that the iocb completions occur while | |
7428 | * this function sleep. So, this function cannot be called from | |
7429 | * the thread which process iocb completion for this ring. | |
7430 | * This function clears the iocb_flag of the iocb object before | |
7431 | * issuing the iocb and the iocb completion handler sets this | |
7432 | * flag and wakes this thread when the iocb completes. | |
7433 | * The contents of the response iocb will be copied to prspiocbq | |
7434 | * by the completion handler when the command completes. | |
7435 | * This function returns IOCB_SUCCESS when success. | |
7436 | * This function is called with no lock held. | |
7437 | **/ | |
7438 | int | |
7439 | lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba, | |
7440 | uint32_t ring_number, | |
7441 | struct lpfc_iocbq *piocb, | |
7442 | struct lpfc_iocbq *prspiocbq, | |
7443 | uint32_t timeout) | |
7444 | { | |
7445 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); | |
7446 | long timeleft, timeout_req = 0; | |
7447 | int retval = IOCB_SUCCESS; | |
7448 | uint32_t creg_val; | |
7449 | ||
7450 | /* | |
7451 | * If the caller has provided a response iocbq buffer, then context2 | |
7452 | * is NULL or its an error. | |
7453 | */ | |
7454 | if (prspiocbq) { | |
7455 | if (piocb->context2) | |
7456 | return IOCB_ERROR; | |
7457 | piocb->context2 = prspiocbq; | |
7458 | } | |
7459 | ||
7460 | piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait; | |
7461 | piocb->context_un.wait_queue = &done_q; | |
7462 | piocb->iocb_flag &= ~LPFC_IO_WAKE; | |
7463 | ||
7464 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { | |
7465 | creg_val = readl(phba->HCregaddr); | |
7466 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); | |
7467 | writel(creg_val, phba->HCregaddr); | |
7468 | readl(phba->HCregaddr); /* flush */ | |
7469 | } | |
7470 | ||
7471 | retval = lpfc_sli_issue_iocb(phba, ring_number, piocb, 0); | |
7472 | if (retval == IOCB_SUCCESS) { | |
7473 | timeout_req = timeout * HZ; | |
7474 | timeleft = wait_event_timeout(done_q, | |
7475 | lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE), | |
7476 | timeout_req); | |
7477 | ||
7478 | if (piocb->iocb_flag & LPFC_IO_WAKE) { | |
7479 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
7480 | "0331 IOCB wake signaled\n"); | |
7481 | } else if (timeleft == 0) { | |
7482 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
7483 | "0338 IOCB wait timeout error - no " | |
7484 | "wake response Data x%x\n", timeout); | |
7485 | retval = IOCB_TIMEDOUT; | |
7486 | } else { | |
7487 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
7488 | "0330 IOCB wake NOT set, " | |
7489 | "Data x%x x%lx\n", | |
7490 | timeout, (timeleft / jiffies)); | |
7491 | retval = IOCB_TIMEDOUT; | |
7492 | } | |
7493 | } else { | |
7494 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
7495 | "0332 IOCB wait issue failed, Data x%x\n", | |
7496 | retval); | |
7497 | retval = IOCB_ERROR; | |
7498 | } | |
7499 | ||
7500 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { | |
7501 | creg_val = readl(phba->HCregaddr); | |
7502 | creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); | |
7503 | writel(creg_val, phba->HCregaddr); | |
7504 | readl(phba->HCregaddr); /* flush */ | |
7505 | } | |
7506 | ||
7507 | if (prspiocbq) | |
7508 | piocb->context2 = NULL; | |
7509 | ||
7510 | piocb->context_un.wait_queue = NULL; | |
7511 | piocb->iocb_cmpl = NULL; | |
7512 | return retval; | |
7513 | } | |
7514 | ||
7515 | /** | |
7516 | * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox | |
7517 | * @phba: Pointer to HBA context object. | |
7518 | * @pmboxq: Pointer to driver mailbox object. | |
7519 | * @timeout: Timeout in number of seconds. | |
7520 | * | |
7521 | * This function issues the mailbox to firmware and waits for the | |
7522 | * mailbox command to complete. If the mailbox command is not | |
7523 | * completed within timeout seconds, it returns MBX_TIMEOUT. | |
7524 | * The function waits for the mailbox completion using an | |
7525 | * interruptible wait. If the thread is woken up due to a | |
7526 | * signal, MBX_TIMEOUT error is returned to the caller. Caller | |
7527 | * should not free the mailbox resources, if this function returns | |
7528 | * MBX_TIMEOUT. | |
7529 | * This function will sleep while waiting for mailbox completion. | |
7530 | * So, this function should not be called from any context which | |
7531 | * does not allow sleeping. Due to the same reason, this function | |
7532 | * cannot be called with interrupt disabled. | |
7533 | * This function assumes that the mailbox completion occurs while | |
7534 | * this function sleep. So, this function cannot be called from | |
7535 | * the worker thread which processes mailbox completion. | |
7536 | * This function is called in the context of HBA management | |
7537 | * applications. | |
7538 | * This function returns MBX_SUCCESS when successful. | |
7539 | * This function is called with no lock held. | |
7540 | **/ | |
7541 | int | |
7542 | lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq, | |
7543 | uint32_t timeout) | |
7544 | { | |
7545 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); | |
7546 | int retval; | |
7547 | unsigned long flag; | |
7548 | ||
7549 | /* The caller must leave context1 empty. */ | |
7550 | if (pmboxq->context1) | |
7551 | return MBX_NOT_FINISHED; | |
7552 | ||
7553 | pmboxq->mbox_flag &= ~LPFC_MBX_WAKE; | |
7554 | /* setup wake call as IOCB callback */ | |
7555 | pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait; | |
7556 | /* setup context field to pass wait_queue pointer to wake function */ | |
7557 | pmboxq->context1 = &done_q; | |
7558 | ||
7559 | /* now issue the command */ | |
7560 | retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); | |
7561 | ||
7562 | if (retval == MBX_BUSY || retval == MBX_SUCCESS) { | |
7563 | wait_event_interruptible_timeout(done_q, | |
7564 | pmboxq->mbox_flag & LPFC_MBX_WAKE, | |
7565 | timeout * HZ); | |
7566 | ||
7567 | spin_lock_irqsave(&phba->hbalock, flag); | |
7568 | pmboxq->context1 = NULL; | |
7569 | /* | |
7570 | * if LPFC_MBX_WAKE flag is set the mailbox is completed | |
7571 | * else do not free the resources. | |
7572 | */ | |
7573 | if (pmboxq->mbox_flag & LPFC_MBX_WAKE) | |
7574 | retval = MBX_SUCCESS; | |
7575 | else { | |
7576 | retval = MBX_TIMEOUT; | |
7577 | pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
7578 | } | |
7579 | spin_unlock_irqrestore(&phba->hbalock, flag); | |
7580 | } | |
7581 | ||
7582 | return retval; | |
7583 | } | |
7584 | ||
7585 | /** | |
7586 | * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system | |
7587 | * @phba: Pointer to HBA context. | |
7588 | * | |
7589 | * This function is called to shutdown the driver's mailbox sub-system. | |
7590 | * It first marks the mailbox sub-system is in a block state to prevent | |
7591 | * the asynchronous mailbox command from issued off the pending mailbox | |
7592 | * command queue. If the mailbox command sub-system shutdown is due to | |
7593 | * HBA error conditions such as EEH or ERATT, this routine shall invoke | |
7594 | * the mailbox sub-system flush routine to forcefully bring down the | |
7595 | * mailbox sub-system. Otherwise, if it is due to normal condition (such | |
7596 | * as with offline or HBA function reset), this routine will wait for the | |
7597 | * outstanding mailbox command to complete before invoking the mailbox | |
7598 | * sub-system flush routine to gracefully bring down mailbox sub-system. | |
7599 | **/ | |
7600 | void | |
7601 | lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba) | |
7602 | { | |
7603 | struct lpfc_sli *psli = &phba->sli; | |
7604 | uint8_t actcmd = MBX_HEARTBEAT; | |
7605 | unsigned long timeout; | |
7606 | ||
7607 | spin_lock_irq(&phba->hbalock); | |
7608 | psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; | |
7609 | spin_unlock_irq(&phba->hbalock); | |
7610 | ||
7611 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { | |
7612 | spin_lock_irq(&phba->hbalock); | |
7613 | if (phba->sli.mbox_active) | |
7614 | actcmd = phba->sli.mbox_active->u.mb.mbxCommand; | |
7615 | spin_unlock_irq(&phba->hbalock); | |
7616 | /* Determine how long we might wait for the active mailbox | |
7617 | * command to be gracefully completed by firmware. | |
7618 | */ | |
7619 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * | |
7620 | 1000) + jiffies; | |
7621 | while (phba->sli.mbox_active) { | |
7622 | /* Check active mailbox complete status every 2ms */ | |
7623 | msleep(2); | |
7624 | if (time_after(jiffies, timeout)) | |
7625 | /* Timeout, let the mailbox flush routine to | |
7626 | * forcefully release active mailbox command | |
7627 | */ | |
7628 | break; | |
7629 | } | |
7630 | } | |
7631 | lpfc_sli_mbox_sys_flush(phba); | |
7632 | } | |
7633 | ||
7634 | /** | |
7635 | * lpfc_sli_eratt_read - read sli-3 error attention events | |
7636 | * @phba: Pointer to HBA context. | |
7637 | * | |
7638 | * This function is called to read the SLI3 device error attention registers | |
7639 | * for possible error attention events. The caller must hold the hostlock | |
7640 | * with spin_lock_irq(). | |
7641 | * | |
7642 | * This fucntion returns 1 when there is Error Attention in the Host Attention | |
7643 | * Register and returns 0 otherwise. | |
7644 | **/ | |
7645 | static int | |
7646 | lpfc_sli_eratt_read(struct lpfc_hba *phba) | |
7647 | { | |
7648 | uint32_t ha_copy; | |
7649 | ||
7650 | /* Read chip Host Attention (HA) register */ | |
7651 | ha_copy = readl(phba->HAregaddr); | |
7652 | if (ha_copy & HA_ERATT) { | |
7653 | /* Read host status register to retrieve error event */ | |
7654 | lpfc_sli_read_hs(phba); | |
7655 | ||
7656 | /* Check if there is a deferred error condition is active */ | |
7657 | if ((HS_FFER1 & phba->work_hs) && | |
7658 | ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 | | |
7659 | HS_FFER6 | HS_FFER7) & phba->work_hs)) { | |
7660 | phba->hba_flag |= DEFER_ERATT; | |
7661 | /* Clear all interrupt enable conditions */ | |
7662 | writel(0, phba->HCregaddr); | |
7663 | readl(phba->HCregaddr); | |
7664 | } | |
7665 | ||
7666 | /* Set the driver HA work bitmap */ | |
7667 | phba->work_ha |= HA_ERATT; | |
7668 | /* Indicate polling handles this ERATT */ | |
7669 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
7670 | return 1; | |
7671 | } | |
7672 | return 0; | |
7673 | } | |
7674 | ||
7675 | /** | |
7676 | * lpfc_sli4_eratt_read - read sli-4 error attention events | |
7677 | * @phba: Pointer to HBA context. | |
7678 | * | |
7679 | * This function is called to read the SLI4 device error attention registers | |
7680 | * for possible error attention events. The caller must hold the hostlock | |
7681 | * with spin_lock_irq(). | |
7682 | * | |
7683 | * This fucntion returns 1 when there is Error Attention in the Host Attention | |
7684 | * Register and returns 0 otherwise. | |
7685 | **/ | |
7686 | static int | |
7687 | lpfc_sli4_eratt_read(struct lpfc_hba *phba) | |
7688 | { | |
7689 | uint32_t uerr_sta_hi, uerr_sta_lo; | |
7690 | uint32_t onlnreg0, onlnreg1; | |
7691 | ||
7692 | /* For now, use the SLI4 device internal unrecoverable error | |
7693 | * registers for error attention. This can be changed later. | |
7694 | */ | |
7695 | onlnreg0 = readl(phba->sli4_hba.ONLINE0regaddr); | |
7696 | onlnreg1 = readl(phba->sli4_hba.ONLINE1regaddr); | |
7697 | if ((onlnreg0 != LPFC_ONLINE_NERR) || (onlnreg1 != LPFC_ONLINE_NERR)) { | |
7698 | uerr_sta_lo = readl(phba->sli4_hba.UERRLOregaddr); | |
7699 | uerr_sta_hi = readl(phba->sli4_hba.UERRHIregaddr); | |
7700 | if (uerr_sta_lo || uerr_sta_hi) { | |
7701 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7702 | "1423 HBA Unrecoverable error: " | |
7703 | "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, " | |
7704 | "online0_reg=0x%x, online1_reg=0x%x\n", | |
7705 | uerr_sta_lo, uerr_sta_hi, | |
7706 | onlnreg0, onlnreg1); | |
7707 | phba->work_status[0] = uerr_sta_lo; | |
7708 | phba->work_status[1] = uerr_sta_hi; | |
7709 | /* Set the driver HA work bitmap */ | |
7710 | phba->work_ha |= HA_ERATT; | |
7711 | /* Indicate polling handles this ERATT */ | |
7712 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
7713 | return 1; | |
7714 | } | |
7715 | } | |
7716 | return 0; | |
7717 | } | |
7718 | ||
7719 | /** | |
7720 | * lpfc_sli_check_eratt - check error attention events | |
7721 | * @phba: Pointer to HBA context. | |
7722 | * | |
7723 | * This function is called from timer soft interrupt context to check HBA's | |
7724 | * error attention register bit for error attention events. | |
7725 | * | |
7726 | * This fucntion returns 1 when there is Error Attention in the Host Attention | |
7727 | * Register and returns 0 otherwise. | |
7728 | **/ | |
7729 | int | |
7730 | lpfc_sli_check_eratt(struct lpfc_hba *phba) | |
7731 | { | |
7732 | uint32_t ha_copy; | |
7733 | ||
7734 | /* If somebody is waiting to handle an eratt, don't process it | |
7735 | * here. The brdkill function will do this. | |
7736 | */ | |
7737 | if (phba->link_flag & LS_IGNORE_ERATT) | |
7738 | return 0; | |
7739 | ||
7740 | /* Check if interrupt handler handles this ERATT */ | |
7741 | spin_lock_irq(&phba->hbalock); | |
7742 | if (phba->hba_flag & HBA_ERATT_HANDLED) { | |
7743 | /* Interrupt handler has handled ERATT */ | |
7744 | spin_unlock_irq(&phba->hbalock); | |
7745 | return 0; | |
7746 | } | |
7747 | ||
7748 | /* | |
7749 | * If there is deferred error attention, do not check for error | |
7750 | * attention | |
7751 | */ | |
7752 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
7753 | spin_unlock_irq(&phba->hbalock); | |
7754 | return 0; | |
7755 | } | |
7756 | ||
7757 | /* If PCI channel is offline, don't process it */ | |
7758 | if (unlikely(pci_channel_offline(phba->pcidev))) { | |
7759 | spin_unlock_irq(&phba->hbalock); | |
7760 | return 0; | |
7761 | } | |
7762 | ||
7763 | switch (phba->sli_rev) { | |
7764 | case LPFC_SLI_REV2: | |
7765 | case LPFC_SLI_REV3: | |
7766 | /* Read chip Host Attention (HA) register */ | |
7767 | ha_copy = lpfc_sli_eratt_read(phba); | |
7768 | break; | |
7769 | case LPFC_SLI_REV4: | |
7770 | /* Read devcie Uncoverable Error (UERR) registers */ | |
7771 | ha_copy = lpfc_sli4_eratt_read(phba); | |
7772 | break; | |
7773 | default: | |
7774 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7775 | "0299 Invalid SLI revision (%d)\n", | |
7776 | phba->sli_rev); | |
7777 | ha_copy = 0; | |
7778 | break; | |
7779 | } | |
7780 | spin_unlock_irq(&phba->hbalock); | |
7781 | ||
7782 | return ha_copy; | |
7783 | } | |
7784 | ||
7785 | /** | |
7786 | * lpfc_intr_state_check - Check device state for interrupt handling | |
7787 | * @phba: Pointer to HBA context. | |
7788 | * | |
7789 | * This inline routine checks whether a device or its PCI slot is in a state | |
7790 | * that the interrupt should be handled. | |
7791 | * | |
7792 | * This function returns 0 if the device or the PCI slot is in a state that | |
7793 | * interrupt should be handled, otherwise -EIO. | |
7794 | */ | |
7795 | static inline int | |
7796 | lpfc_intr_state_check(struct lpfc_hba *phba) | |
7797 | { | |
7798 | /* If the pci channel is offline, ignore all the interrupts */ | |
7799 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
7800 | return -EIO; | |
7801 | ||
7802 | /* Update device level interrupt statistics */ | |
7803 | phba->sli.slistat.sli_intr++; | |
7804 | ||
7805 | /* Ignore all interrupts during initialization. */ | |
7806 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) | |
7807 | return -EIO; | |
7808 | ||
7809 | return 0; | |
7810 | } | |
7811 | ||
7812 | /** | |
7813 | * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device | |
7814 | * @irq: Interrupt number. | |
7815 | * @dev_id: The device context pointer. | |
7816 | * | |
7817 | * This function is directly called from the PCI layer as an interrupt | |
7818 | * service routine when device with SLI-3 interface spec is enabled with | |
7819 | * MSI-X multi-message interrupt mode and there are slow-path events in | |
7820 | * the HBA. However, when the device is enabled with either MSI or Pin-IRQ | |
7821 | * interrupt mode, this function is called as part of the device-level | |
7822 | * interrupt handler. When the PCI slot is in error recovery or the HBA | |
7823 | * is undergoing initialization, the interrupt handler will not process | |
7824 | * the interrupt. The link attention and ELS ring attention events are | |
7825 | * handled by the worker thread. The interrupt handler signals the worker | |
7826 | * thread and returns for these events. This function is called without | |
7827 | * any lock held. It gets the hbalock to access and update SLI data | |
7828 | * structures. | |
7829 | * | |
7830 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
7831 | * returns IRQ_NONE. | |
7832 | **/ | |
7833 | irqreturn_t | |
7834 | lpfc_sli_sp_intr_handler(int irq, void *dev_id) | |
7835 | { | |
7836 | struct lpfc_hba *phba; | |
7837 | uint32_t ha_copy; | |
7838 | uint32_t work_ha_copy; | |
7839 | unsigned long status; | |
7840 | unsigned long iflag; | |
7841 | uint32_t control; | |
7842 | ||
7843 | MAILBOX_t *mbox, *pmbox; | |
7844 | struct lpfc_vport *vport; | |
7845 | struct lpfc_nodelist *ndlp; | |
7846 | struct lpfc_dmabuf *mp; | |
7847 | LPFC_MBOXQ_t *pmb; | |
7848 | int rc; | |
7849 | ||
7850 | /* | |
7851 | * Get the driver's phba structure from the dev_id and | |
7852 | * assume the HBA is not interrupting. | |
7853 | */ | |
7854 | phba = (struct lpfc_hba *)dev_id; | |
7855 | ||
7856 | if (unlikely(!phba)) | |
7857 | return IRQ_NONE; | |
7858 | ||
7859 | /* | |
7860 | * Stuff needs to be attented to when this function is invoked as an | |
7861 | * individual interrupt handler in MSI-X multi-message interrupt mode | |
7862 | */ | |
7863 | if (phba->intr_type == MSIX) { | |
7864 | /* Check device state for handling interrupt */ | |
7865 | if (lpfc_intr_state_check(phba)) | |
7866 | return IRQ_NONE; | |
7867 | /* Need to read HA REG for slow-path events */ | |
7868 | spin_lock_irqsave(&phba->hbalock, iflag); | |
7869 | ha_copy = readl(phba->HAregaddr); | |
7870 | /* If somebody is waiting to handle an eratt don't process it | |
7871 | * here. The brdkill function will do this. | |
7872 | */ | |
7873 | if (phba->link_flag & LS_IGNORE_ERATT) | |
7874 | ha_copy &= ~HA_ERATT; | |
7875 | /* Check the need for handling ERATT in interrupt handler */ | |
7876 | if (ha_copy & HA_ERATT) { | |
7877 | if (phba->hba_flag & HBA_ERATT_HANDLED) | |
7878 | /* ERATT polling has handled ERATT */ | |
7879 | ha_copy &= ~HA_ERATT; | |
7880 | else | |
7881 | /* Indicate interrupt handler handles ERATT */ | |
7882 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
7883 | } | |
7884 | ||
7885 | /* | |
7886 | * If there is deferred error attention, do not check for any | |
7887 | * interrupt. | |
7888 | */ | |
7889 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
7890 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7891 | return IRQ_NONE; | |
7892 | } | |
7893 | ||
7894 | /* Clear up only attention source related to slow-path */ | |
7895 | writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)), | |
7896 | phba->HAregaddr); | |
7897 | readl(phba->HAregaddr); /* flush */ | |
7898 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7899 | } else | |
7900 | ha_copy = phba->ha_copy; | |
7901 | ||
7902 | work_ha_copy = ha_copy & phba->work_ha_mask; | |
7903 | ||
7904 | if (work_ha_copy) { | |
7905 | if (work_ha_copy & HA_LATT) { | |
7906 | if (phba->sli.sli_flag & LPFC_PROCESS_LA) { | |
7907 | /* | |
7908 | * Turn off Link Attention interrupts | |
7909 | * until CLEAR_LA done | |
7910 | */ | |
7911 | spin_lock_irqsave(&phba->hbalock, iflag); | |
7912 | phba->sli.sli_flag &= ~LPFC_PROCESS_LA; | |
7913 | control = readl(phba->HCregaddr); | |
7914 | control &= ~HC_LAINT_ENA; | |
7915 | writel(control, phba->HCregaddr); | |
7916 | readl(phba->HCregaddr); /* flush */ | |
7917 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7918 | } | |
7919 | else | |
7920 | work_ha_copy &= ~HA_LATT; | |
7921 | } | |
7922 | ||
7923 | if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) { | |
7924 | /* | |
7925 | * Turn off Slow Rings interrupts, LPFC_ELS_RING is | |
7926 | * the only slow ring. | |
7927 | */ | |
7928 | status = (work_ha_copy & | |
7929 | (HA_RXMASK << (4*LPFC_ELS_RING))); | |
7930 | status >>= (4*LPFC_ELS_RING); | |
7931 | if (status & HA_RXMASK) { | |
7932 | spin_lock_irqsave(&phba->hbalock, iflag); | |
7933 | control = readl(phba->HCregaddr); | |
7934 | ||
7935 | lpfc_debugfs_slow_ring_trc(phba, | |
7936 | "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x", | |
7937 | control, status, | |
7938 | (uint32_t)phba->sli.slistat.sli_intr); | |
7939 | ||
7940 | if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) { | |
7941 | lpfc_debugfs_slow_ring_trc(phba, | |
7942 | "ISR Disable ring:" | |
7943 | "pwork:x%x hawork:x%x wait:x%x", | |
7944 | phba->work_ha, work_ha_copy, | |
7945 | (uint32_t)((unsigned long) | |
7946 | &phba->work_waitq)); | |
7947 | ||
7948 | control &= | |
7949 | ~(HC_R0INT_ENA << LPFC_ELS_RING); | |
7950 | writel(control, phba->HCregaddr); | |
7951 | readl(phba->HCregaddr); /* flush */ | |
7952 | } | |
7953 | else { | |
7954 | lpfc_debugfs_slow_ring_trc(phba, | |
7955 | "ISR slow ring: pwork:" | |
7956 | "x%x hawork:x%x wait:x%x", | |
7957 | phba->work_ha, work_ha_copy, | |
7958 | (uint32_t)((unsigned long) | |
7959 | &phba->work_waitq)); | |
7960 | } | |
7961 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7962 | } | |
7963 | } | |
7964 | spin_lock_irqsave(&phba->hbalock, iflag); | |
7965 | if (work_ha_copy & HA_ERATT) { | |
7966 | lpfc_sli_read_hs(phba); | |
7967 | /* | |
7968 | * Check if there is a deferred error condition | |
7969 | * is active | |
7970 | */ | |
7971 | if ((HS_FFER1 & phba->work_hs) && | |
7972 | ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 | | |
7973 | HS_FFER6 | HS_FFER7) & phba->work_hs)) { | |
7974 | phba->hba_flag |= DEFER_ERATT; | |
7975 | /* Clear all interrupt enable conditions */ | |
7976 | writel(0, phba->HCregaddr); | |
7977 | readl(phba->HCregaddr); | |
7978 | } | |
7979 | } | |
7980 | ||
7981 | if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) { | |
7982 | pmb = phba->sli.mbox_active; | |
7983 | pmbox = &pmb->u.mb; | |
7984 | mbox = phba->mbox; | |
7985 | vport = pmb->vport; | |
7986 | ||
7987 | /* First check out the status word */ | |
7988 | lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t)); | |
7989 | if (pmbox->mbxOwner != OWN_HOST) { | |
7990 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
7991 | /* | |
7992 | * Stray Mailbox Interrupt, mbxCommand <cmd> | |
7993 | * mbxStatus <status> | |
7994 | */ | |
7995 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | | |
7996 | LOG_SLI, | |
7997 | "(%d):0304 Stray Mailbox " | |
7998 | "Interrupt mbxCommand x%x " | |
7999 | "mbxStatus x%x\n", | |
8000 | (vport ? vport->vpi : 0), | |
8001 | pmbox->mbxCommand, | |
8002 | pmbox->mbxStatus); | |
8003 | /* clear mailbox attention bit */ | |
8004 | work_ha_copy &= ~HA_MBATT; | |
8005 | } else { | |
8006 | phba->sli.mbox_active = NULL; | |
8007 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
8008 | phba->last_completion_time = jiffies; | |
8009 | del_timer(&phba->sli.mbox_tmo); | |
8010 | if (pmb->mbox_cmpl) { | |
8011 | lpfc_sli_pcimem_bcopy(mbox, pmbox, | |
8012 | MAILBOX_CMD_SIZE); | |
8013 | } | |
8014 | if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) { | |
8015 | pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG; | |
8016 | ||
8017 | lpfc_debugfs_disc_trc(vport, | |
8018 | LPFC_DISC_TRC_MBOX_VPORT, | |
8019 | "MBOX dflt rpi: : " | |
8020 | "status:x%x rpi:x%x", | |
8021 | (uint32_t)pmbox->mbxStatus, | |
8022 | pmbox->un.varWords[0], 0); | |
8023 | ||
8024 | if (!pmbox->mbxStatus) { | |
8025 | mp = (struct lpfc_dmabuf *) | |
8026 | (pmb->context1); | |
8027 | ndlp = (struct lpfc_nodelist *) | |
8028 | pmb->context2; | |
8029 | ||
8030 | /* Reg_LOGIN of dflt RPI was | |
8031 | * successful. new lets get | |
8032 | * rid of the RPI using the | |
8033 | * same mbox buffer. | |
8034 | */ | |
8035 | lpfc_unreg_login(phba, | |
8036 | vport->vpi, | |
8037 | pmbox->un.varWords[0], | |
8038 | pmb); | |
8039 | pmb->mbox_cmpl = | |
8040 | lpfc_mbx_cmpl_dflt_rpi; | |
8041 | pmb->context1 = mp; | |
8042 | pmb->context2 = ndlp; | |
8043 | pmb->vport = vport; | |
8044 | rc = lpfc_sli_issue_mbox(phba, | |
8045 | pmb, | |
8046 | MBX_NOWAIT); | |
8047 | if (rc != MBX_BUSY) | |
8048 | lpfc_printf_log(phba, | |
8049 | KERN_ERR, | |
8050 | LOG_MBOX | LOG_SLI, | |
8051 | "0350 rc should have" | |
8052 | "been MBX_BUSY"); | |
8053 | if (rc != MBX_NOT_FINISHED) | |
8054 | goto send_current_mbox; | |
8055 | } | |
8056 | } | |
8057 | spin_lock_irqsave( | |
8058 | &phba->pport->work_port_lock, | |
8059 | iflag); | |
8060 | phba->pport->work_port_events &= | |
8061 | ~WORKER_MBOX_TMO; | |
8062 | spin_unlock_irqrestore( | |
8063 | &phba->pport->work_port_lock, | |
8064 | iflag); | |
8065 | lpfc_mbox_cmpl_put(phba, pmb); | |
8066 | } | |
8067 | } else | |
8068 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
8069 | ||
8070 | if ((work_ha_copy & HA_MBATT) && | |
8071 | (phba->sli.mbox_active == NULL)) { | |
8072 | send_current_mbox: | |
8073 | /* Process next mailbox command if there is one */ | |
8074 | do { | |
8075 | rc = lpfc_sli_issue_mbox(phba, NULL, | |
8076 | MBX_NOWAIT); | |
8077 | } while (rc == MBX_NOT_FINISHED); | |
8078 | if (rc != MBX_SUCCESS) | |
8079 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | | |
8080 | LOG_SLI, "0349 rc should be " | |
8081 | "MBX_SUCCESS"); | |
8082 | } | |
8083 | ||
8084 | spin_lock_irqsave(&phba->hbalock, iflag); | |
8085 | phba->work_ha |= work_ha_copy; | |
8086 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
8087 | lpfc_worker_wake_up(phba); | |
8088 | } | |
8089 | return IRQ_HANDLED; | |
8090 | ||
8091 | } /* lpfc_sli_sp_intr_handler */ | |
8092 | ||
8093 | /** | |
8094 | * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device. | |
8095 | * @irq: Interrupt number. | |
8096 | * @dev_id: The device context pointer. | |
8097 | * | |
8098 | * This function is directly called from the PCI layer as an interrupt | |
8099 | * service routine when device with SLI-3 interface spec is enabled with | |
8100 | * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB | |
8101 | * ring event in the HBA. However, when the device is enabled with either | |
8102 | * MSI or Pin-IRQ interrupt mode, this function is called as part of the | |
8103 | * device-level interrupt handler. When the PCI slot is in error recovery | |
8104 | * or the HBA is undergoing initialization, the interrupt handler will not | |
8105 | * process the interrupt. The SCSI FCP fast-path ring event are handled in | |
8106 | * the intrrupt context. This function is called without any lock held. | |
8107 | * It gets the hbalock to access and update SLI data structures. | |
8108 | * | |
8109 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
8110 | * returns IRQ_NONE. | |
8111 | **/ | |
8112 | irqreturn_t | |
8113 | lpfc_sli_fp_intr_handler(int irq, void *dev_id) | |
8114 | { | |
8115 | struct lpfc_hba *phba; | |
8116 | uint32_t ha_copy; | |
8117 | unsigned long status; | |
8118 | unsigned long iflag; | |
8119 | ||
8120 | /* Get the driver's phba structure from the dev_id and | |
8121 | * assume the HBA is not interrupting. | |
8122 | */ | |
8123 | phba = (struct lpfc_hba *) dev_id; | |
8124 | ||
8125 | if (unlikely(!phba)) | |
8126 | return IRQ_NONE; | |
8127 | ||
8128 | /* | |
8129 | * Stuff needs to be attented to when this function is invoked as an | |
8130 | * individual interrupt handler in MSI-X multi-message interrupt mode | |
8131 | */ | |
8132 | if (phba->intr_type == MSIX) { | |
8133 | /* Check device state for handling interrupt */ | |
8134 | if (lpfc_intr_state_check(phba)) | |
8135 | return IRQ_NONE; | |
8136 | /* Need to read HA REG for FCP ring and other ring events */ | |
8137 | ha_copy = readl(phba->HAregaddr); | |
8138 | /* Clear up only attention source related to fast-path */ | |
8139 | spin_lock_irqsave(&phba->hbalock, iflag); | |
8140 | /* | |
8141 | * If there is deferred error attention, do not check for | |
8142 | * any interrupt. | |
8143 | */ | |
8144 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
8145 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
8146 | return IRQ_NONE; | |
8147 | } | |
8148 | writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)), | |
8149 | phba->HAregaddr); | |
8150 | readl(phba->HAregaddr); /* flush */ | |
8151 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
8152 | } else | |
8153 | ha_copy = phba->ha_copy; | |
8154 | ||
8155 | /* | |
8156 | * Process all events on FCP ring. Take the optimized path for FCP IO. | |
8157 | */ | |
8158 | ha_copy &= ~(phba->work_ha_mask); | |
8159 | ||
8160 | status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
8161 | status >>= (4*LPFC_FCP_RING); | |
8162 | if (status & HA_RXMASK) | |
8163 | lpfc_sli_handle_fast_ring_event(phba, | |
8164 | &phba->sli.ring[LPFC_FCP_RING], | |
8165 | status); | |
8166 | ||
8167 | if (phba->cfg_multi_ring_support == 2) { | |
8168 | /* | |
8169 | * Process all events on extra ring. Take the optimized path | |
8170 | * for extra ring IO. | |
8171 | */ | |
8172 | status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); | |
8173 | status >>= (4*LPFC_EXTRA_RING); | |
8174 | if (status & HA_RXMASK) { | |
8175 | lpfc_sli_handle_fast_ring_event(phba, | |
8176 | &phba->sli.ring[LPFC_EXTRA_RING], | |
8177 | status); | |
8178 | } | |
8179 | } | |
8180 | return IRQ_HANDLED; | |
8181 | } /* lpfc_sli_fp_intr_handler */ | |
8182 | ||
8183 | /** | |
8184 | * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device | |
8185 | * @irq: Interrupt number. | |
8186 | * @dev_id: The device context pointer. | |
8187 | * | |
8188 | * This function is the HBA device-level interrupt handler to device with | |
8189 | * SLI-3 interface spec, called from the PCI layer when either MSI or | |
8190 | * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which | |
8191 | * requires driver attention. This function invokes the slow-path interrupt | |
8192 | * attention handling function and fast-path interrupt attention handling | |
8193 | * function in turn to process the relevant HBA attention events. This | |
8194 | * function is called without any lock held. It gets the hbalock to access | |
8195 | * and update SLI data structures. | |
8196 | * | |
8197 | * This function returns IRQ_HANDLED when interrupt is handled, else it | |
8198 | * returns IRQ_NONE. | |
8199 | **/ | |
8200 | irqreturn_t | |
8201 | lpfc_sli_intr_handler(int irq, void *dev_id) | |
8202 | { | |
8203 | struct lpfc_hba *phba; | |
8204 | irqreturn_t sp_irq_rc, fp_irq_rc; | |
8205 | unsigned long status1, status2; | |
8206 | ||
8207 | /* | |
8208 | * Get the driver's phba structure from the dev_id and | |
8209 | * assume the HBA is not interrupting. | |
8210 | */ | |
8211 | phba = (struct lpfc_hba *) dev_id; | |
8212 | ||
8213 | if (unlikely(!phba)) | |
8214 | return IRQ_NONE; | |
8215 | ||
8216 | /* Check device state for handling interrupt */ | |
8217 | if (lpfc_intr_state_check(phba)) | |
8218 | return IRQ_NONE; | |
8219 | ||
8220 | spin_lock(&phba->hbalock); | |
8221 | phba->ha_copy = readl(phba->HAregaddr); | |
8222 | if (unlikely(!phba->ha_copy)) { | |
8223 | spin_unlock(&phba->hbalock); | |
8224 | return IRQ_NONE; | |
8225 | } else if (phba->ha_copy & HA_ERATT) { | |
8226 | if (phba->hba_flag & HBA_ERATT_HANDLED) | |
8227 | /* ERATT polling has handled ERATT */ | |
8228 | phba->ha_copy &= ~HA_ERATT; | |
8229 | else | |
8230 | /* Indicate interrupt handler handles ERATT */ | |
8231 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
8232 | } | |
8233 | ||
8234 | /* | |
8235 | * If there is deferred error attention, do not check for any interrupt. | |
8236 | */ | |
8237 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
8238 | spin_unlock_irq(&phba->hbalock); | |
8239 | return IRQ_NONE; | |
8240 | } | |
8241 | ||
8242 | /* Clear attention sources except link and error attentions */ | |
8243 | writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr); | |
8244 | readl(phba->HAregaddr); /* flush */ | |
8245 | spin_unlock(&phba->hbalock); | |
8246 | ||
8247 | /* | |
8248 | * Invokes slow-path host attention interrupt handling as appropriate. | |
8249 | */ | |
8250 | ||
8251 | /* status of events with mailbox and link attention */ | |
8252 | status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT); | |
8253 | ||
8254 | /* status of events with ELS ring */ | |
8255 | status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); | |
8256 | status2 >>= (4*LPFC_ELS_RING); | |
8257 | ||
8258 | if (status1 || (status2 & HA_RXMASK)) | |
8259 | sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id); | |
8260 | else | |
8261 | sp_irq_rc = IRQ_NONE; | |
8262 | ||
8263 | /* | |
8264 | * Invoke fast-path host attention interrupt handling as appropriate. | |
8265 | */ | |
8266 | ||
8267 | /* status of events with FCP ring */ | |
8268 | status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
8269 | status1 >>= (4*LPFC_FCP_RING); | |
8270 | ||
8271 | /* status of events with extra ring */ | |
8272 | if (phba->cfg_multi_ring_support == 2) { | |
8273 | status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); | |
8274 | status2 >>= (4*LPFC_EXTRA_RING); | |
8275 | } else | |
8276 | status2 = 0; | |
8277 | ||
8278 | if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK)) | |
8279 | fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id); | |
8280 | else | |
8281 | fp_irq_rc = IRQ_NONE; | |
8282 | ||
8283 | /* Return device-level interrupt handling status */ | |
8284 | return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc; | |
8285 | } /* lpfc_sli_intr_handler */ | |
8286 | ||
8287 | /** | |
8288 | * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event | |
8289 | * @phba: pointer to lpfc hba data structure. | |
8290 | * | |
8291 | * This routine is invoked by the worker thread to process all the pending | |
8292 | * SLI4 FCP abort XRI events. | |
8293 | **/ | |
8294 | void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba) | |
8295 | { | |
8296 | struct lpfc_cq_event *cq_event; | |
8297 | ||
8298 | /* First, declare the fcp xri abort event has been handled */ | |
8299 | spin_lock_irq(&phba->hbalock); | |
8300 | phba->hba_flag &= ~FCP_XRI_ABORT_EVENT; | |
8301 | spin_unlock_irq(&phba->hbalock); | |
8302 | /* Now, handle all the fcp xri abort events */ | |
8303 | while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) { | |
8304 | /* Get the first event from the head of the event queue */ | |
8305 | spin_lock_irq(&phba->hbalock); | |
8306 | list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, | |
8307 | cq_event, struct lpfc_cq_event, list); | |
8308 | spin_unlock_irq(&phba->hbalock); | |
8309 | /* Notify aborted XRI for FCP work queue */ | |
8310 | lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri); | |
8311 | /* Free the event processed back to the free pool */ | |
8312 | lpfc_sli4_cq_event_release(phba, cq_event); | |
8313 | } | |
8314 | } | |
8315 | ||
8316 | /** | |
8317 | * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event | |
8318 | * @phba: pointer to lpfc hba data structure. | |
8319 | * | |
8320 | * This routine is invoked by the worker thread to process all the pending | |
8321 | * SLI4 els abort xri events. | |
8322 | **/ | |
8323 | void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba) | |
8324 | { | |
8325 | struct lpfc_cq_event *cq_event; | |
8326 | ||
8327 | /* First, declare the els xri abort event has been handled */ | |
8328 | spin_lock_irq(&phba->hbalock); | |
8329 | phba->hba_flag &= ~ELS_XRI_ABORT_EVENT; | |
8330 | spin_unlock_irq(&phba->hbalock); | |
8331 | /* Now, handle all the els xri abort events */ | |
8332 | while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) { | |
8333 | /* Get the first event from the head of the event queue */ | |
8334 | spin_lock_irq(&phba->hbalock); | |
8335 | list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue, | |
8336 | cq_event, struct lpfc_cq_event, list); | |
8337 | spin_unlock_irq(&phba->hbalock); | |
8338 | /* Notify aborted XRI for ELS work queue */ | |
8339 | lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri); | |
8340 | /* Free the event processed back to the free pool */ | |
8341 | lpfc_sli4_cq_event_release(phba, cq_event); | |
8342 | } | |
8343 | } | |
8344 | ||
8345 | static void | |
8346 | lpfc_sli4_iocb_param_transfer(struct lpfc_iocbq *pIocbIn, | |
8347 | struct lpfc_iocbq *pIocbOut, | |
8348 | struct lpfc_wcqe_complete *wcqe) | |
8349 | { | |
8350 | size_t offset = offsetof(struct lpfc_iocbq, iocb); | |
8351 | ||
8352 | memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset, | |
8353 | sizeof(struct lpfc_iocbq) - offset); | |
8354 | memset(&pIocbIn->sli4_info, 0, | |
8355 | sizeof(struct lpfc_sli4_rspiocb_info)); | |
8356 | /* Map WCQE parameters into irspiocb parameters */ | |
8357 | pIocbIn->iocb.ulpStatus = bf_get(lpfc_wcqe_c_status, wcqe); | |
8358 | if (pIocbOut->iocb_flag & LPFC_IO_FCP) | |
8359 | if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR) | |
8360 | pIocbIn->iocb.un.fcpi.fcpi_parm = | |
8361 | pIocbOut->iocb.un.fcpi.fcpi_parm - | |
8362 | wcqe->total_data_placed; | |
8363 | else | |
8364 | pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter; | |
8365 | else | |
8366 | pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter; | |
8367 | /* Load in additional WCQE parameters */ | |
8368 | pIocbIn->sli4_info.hw_status = bf_get(lpfc_wcqe_c_hw_status, wcqe); | |
8369 | pIocbIn->sli4_info.bfield = 0; | |
8370 | if (bf_get(lpfc_wcqe_c_xb, wcqe)) | |
8371 | pIocbIn->sli4_info.bfield |= LPFC_XB; | |
8372 | if (bf_get(lpfc_wcqe_c_pv, wcqe)) { | |
8373 | pIocbIn->sli4_info.bfield |= LPFC_PV; | |
8374 | pIocbIn->sli4_info.priority = | |
8375 | bf_get(lpfc_wcqe_c_priority, wcqe); | |
8376 | } | |
8377 | } | |
8378 | ||
8379 | /** | |
8380 | * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event | |
8381 | * @phba: Pointer to HBA context object. | |
8382 | * @cqe: Pointer to mailbox completion queue entry. | |
8383 | * | |
8384 | * This routine process a mailbox completion queue entry with asynchrous | |
8385 | * event. | |
8386 | * | |
8387 | * Return: true if work posted to worker thread, otherwise false. | |
8388 | **/ | |
8389 | static bool | |
8390 | lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe) | |
8391 | { | |
8392 | struct lpfc_cq_event *cq_event; | |
8393 | unsigned long iflags; | |
8394 | ||
8395 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
8396 | "0392 Async Event: word0:x%x, word1:x%x, " | |
8397 | "word2:x%x, word3:x%x\n", mcqe->word0, | |
8398 | mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer); | |
8399 | ||
8400 | /* Allocate a new internal CQ_EVENT entry */ | |
8401 | cq_event = lpfc_sli4_cq_event_alloc(phba); | |
8402 | if (!cq_event) { | |
8403 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8404 | "0394 Failed to allocate CQ_EVENT entry\n"); | |
8405 | return false; | |
8406 | } | |
8407 | ||
8408 | /* Move the CQE into an asynchronous event entry */ | |
8409 | memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe)); | |
8410 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8411 | list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue); | |
8412 | /* Set the async event flag */ | |
8413 | phba->hba_flag |= ASYNC_EVENT; | |
8414 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8415 | ||
8416 | return true; | |
8417 | } | |
8418 | ||
8419 | /** | |
8420 | * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event | |
8421 | * @phba: Pointer to HBA context object. | |
8422 | * @cqe: Pointer to mailbox completion queue entry. | |
8423 | * | |
8424 | * This routine process a mailbox completion queue entry with mailbox | |
8425 | * completion event. | |
8426 | * | |
8427 | * Return: true if work posted to worker thread, otherwise false. | |
8428 | **/ | |
8429 | static bool | |
8430 | lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe) | |
8431 | { | |
8432 | uint32_t mcqe_status; | |
8433 | MAILBOX_t *mbox, *pmbox; | |
8434 | struct lpfc_mqe *mqe; | |
8435 | struct lpfc_vport *vport; | |
8436 | struct lpfc_nodelist *ndlp; | |
8437 | struct lpfc_dmabuf *mp; | |
8438 | unsigned long iflags; | |
8439 | LPFC_MBOXQ_t *pmb; | |
8440 | bool workposted = false; | |
8441 | int rc; | |
8442 | ||
8443 | /* If not a mailbox complete MCQE, out by checking mailbox consume */ | |
8444 | if (!bf_get(lpfc_trailer_completed, mcqe)) | |
8445 | goto out_no_mqe_complete; | |
8446 | ||
8447 | /* Get the reference to the active mbox command */ | |
8448 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8449 | pmb = phba->sli.mbox_active; | |
8450 | if (unlikely(!pmb)) { | |
8451 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
8452 | "1832 No pending MBOX command to handle\n"); | |
8453 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8454 | goto out_no_mqe_complete; | |
8455 | } | |
8456 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8457 | mqe = &pmb->u.mqe; | |
8458 | pmbox = (MAILBOX_t *)&pmb->u.mqe; | |
8459 | mbox = phba->mbox; | |
8460 | vport = pmb->vport; | |
8461 | ||
8462 | /* Reset heartbeat timer */ | |
8463 | phba->last_completion_time = jiffies; | |
8464 | del_timer(&phba->sli.mbox_tmo); | |
8465 | ||
8466 | /* Move mbox data to caller's mailbox region, do endian swapping */ | |
8467 | if (pmb->mbox_cmpl && mbox) | |
8468 | lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe)); | |
8469 | /* Set the mailbox status with SLI4 range 0x4000 */ | |
8470 | mcqe_status = bf_get(lpfc_mcqe_status, mcqe); | |
8471 | if (mcqe_status != MB_CQE_STATUS_SUCCESS) | |
8472 | bf_set(lpfc_mqe_status, mqe, | |
8473 | (LPFC_MBX_ERROR_RANGE | mcqe_status)); | |
8474 | ||
8475 | if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) { | |
8476 | pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG; | |
8477 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT, | |
8478 | "MBOX dflt rpi: status:x%x rpi:x%x", | |
8479 | mcqe_status, | |
8480 | pmbox->un.varWords[0], 0); | |
8481 | if (mcqe_status == MB_CQE_STATUS_SUCCESS) { | |
8482 | mp = (struct lpfc_dmabuf *)(pmb->context1); | |
8483 | ndlp = (struct lpfc_nodelist *)pmb->context2; | |
8484 | /* Reg_LOGIN of dflt RPI was successful. Now lets get | |
8485 | * RID of the PPI using the same mbox buffer. | |
8486 | */ | |
8487 | lpfc_unreg_login(phba, vport->vpi, | |
8488 | pmbox->un.varWords[0], pmb); | |
8489 | pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; | |
8490 | pmb->context1 = mp; | |
8491 | pmb->context2 = ndlp; | |
8492 | pmb->vport = vport; | |
8493 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
8494 | if (rc != MBX_BUSY) | |
8495 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | | |
8496 | LOG_SLI, "0385 rc should " | |
8497 | "have been MBX_BUSY\n"); | |
8498 | if (rc != MBX_NOT_FINISHED) | |
8499 | goto send_current_mbox; | |
8500 | } | |
8501 | } | |
8502 | spin_lock_irqsave(&phba->pport->work_port_lock, iflags); | |
8503 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; | |
8504 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); | |
8505 | ||
8506 | /* There is mailbox completion work to do */ | |
8507 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8508 | __lpfc_mbox_cmpl_put(phba, pmb); | |
8509 | phba->work_ha |= HA_MBATT; | |
8510 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8511 | workposted = true; | |
8512 | ||
8513 | send_current_mbox: | |
8514 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8515 | /* Release the mailbox command posting token */ | |
8516 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
8517 | /* Setting active mailbox pointer need to be in sync to flag clear */ | |
8518 | phba->sli.mbox_active = NULL; | |
8519 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8520 | /* Wake up worker thread to post the next pending mailbox command */ | |
8521 | lpfc_worker_wake_up(phba); | |
8522 | out_no_mqe_complete: | |
8523 | if (bf_get(lpfc_trailer_consumed, mcqe)) | |
8524 | lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq); | |
8525 | return workposted; | |
8526 | } | |
8527 | ||
8528 | /** | |
8529 | * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry | |
8530 | * @phba: Pointer to HBA context object. | |
8531 | * @cqe: Pointer to mailbox completion queue entry. | |
8532 | * | |
8533 | * This routine process a mailbox completion queue entry, it invokes the | |
8534 | * proper mailbox complete handling or asynchrous event handling routine | |
8535 | * according to the MCQE's async bit. | |
8536 | * | |
8537 | * Return: true if work posted to worker thread, otherwise false. | |
8538 | **/ | |
8539 | static bool | |
8540 | lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe) | |
8541 | { | |
8542 | struct lpfc_mcqe mcqe; | |
8543 | bool workposted; | |
8544 | ||
8545 | /* Copy the mailbox MCQE and convert endian order as needed */ | |
8546 | lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe)); | |
8547 | ||
8548 | /* Invoke the proper event handling routine */ | |
8549 | if (!bf_get(lpfc_trailer_async, &mcqe)) | |
8550 | workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe); | |
8551 | else | |
8552 | workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe); | |
8553 | return workposted; | |
8554 | } | |
8555 | ||
8556 | /** | |
8557 | * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event | |
8558 | * @phba: Pointer to HBA context object. | |
8559 | * @wcqe: Pointer to work-queue completion queue entry. | |
8560 | * | |
8561 | * This routine handles an ELS work-queue completion event. | |
8562 | * | |
8563 | * Return: true if work posted to worker thread, otherwise false. | |
8564 | **/ | |
8565 | static bool | |
8566 | lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, | |
8567 | struct lpfc_wcqe_complete *wcqe) | |
8568 | { | |
8569 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
8570 | struct lpfc_iocbq *cmdiocbq; | |
8571 | struct lpfc_iocbq *irspiocbq; | |
8572 | unsigned long iflags; | |
8573 | bool workposted = false; | |
8574 | ||
8575 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8576 | pring->stats.iocb_event++; | |
8577 | /* Look up the ELS command IOCB and create pseudo response IOCB */ | |
8578 | cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring, | |
8579 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
8580 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8581 | ||
8582 | if (unlikely(!cmdiocbq)) { | |
8583 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
8584 | "0386 ELS complete with no corresponding " | |
8585 | "cmdiocb: iotag (%d)\n", | |
8586 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
8587 | return workposted; | |
8588 | } | |
8589 | ||
8590 | /* Fake the irspiocbq and copy necessary response information */ | |
8591 | irspiocbq = lpfc_sli_get_iocbq(phba); | |
8592 | if (!irspiocbq) { | |
8593 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8594 | "0387 Failed to allocate an iocbq\n"); | |
8595 | return workposted; | |
8596 | } | |
8597 | lpfc_sli4_iocb_param_transfer(irspiocbq, cmdiocbq, wcqe); | |
8598 | ||
8599 | /* Add the irspiocb to the response IOCB work list */ | |
8600 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8601 | list_add_tail(&irspiocbq->list, &phba->sli4_hba.sp_rspiocb_work_queue); | |
8602 | /* Indicate ELS ring attention */ | |
8603 | phba->work_ha |= (HA_R0ATT << (4*LPFC_ELS_RING)); | |
8604 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8605 | workposted = true; | |
8606 | ||
8607 | return workposted; | |
8608 | } | |
8609 | ||
8610 | /** | |
8611 | * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event | |
8612 | * @phba: Pointer to HBA context object. | |
8613 | * @wcqe: Pointer to work-queue completion queue entry. | |
8614 | * | |
8615 | * This routine handles slow-path WQ entry comsumed event by invoking the | |
8616 | * proper WQ release routine to the slow-path WQ. | |
8617 | **/ | |
8618 | static void | |
8619 | lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba, | |
8620 | struct lpfc_wcqe_release *wcqe) | |
8621 | { | |
8622 | /* Check for the slow-path ELS work queue */ | |
8623 | if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id) | |
8624 | lpfc_sli4_wq_release(phba->sli4_hba.els_wq, | |
8625 | bf_get(lpfc_wcqe_r_wqe_index, wcqe)); | |
8626 | else | |
8627 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
8628 | "2579 Slow-path wqe consume event carries " | |
8629 | "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n", | |
8630 | bf_get(lpfc_wcqe_r_wqe_index, wcqe), | |
8631 | phba->sli4_hba.els_wq->queue_id); | |
8632 | } | |
8633 | ||
8634 | /** | |
8635 | * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event | |
8636 | * @phba: Pointer to HBA context object. | |
8637 | * @cq: Pointer to a WQ completion queue. | |
8638 | * @wcqe: Pointer to work-queue completion queue entry. | |
8639 | * | |
8640 | * This routine handles an XRI abort event. | |
8641 | * | |
8642 | * Return: true if work posted to worker thread, otherwise false. | |
8643 | **/ | |
8644 | static bool | |
8645 | lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba, | |
8646 | struct lpfc_queue *cq, | |
8647 | struct sli4_wcqe_xri_aborted *wcqe) | |
8648 | { | |
8649 | bool workposted = false; | |
8650 | struct lpfc_cq_event *cq_event; | |
8651 | unsigned long iflags; | |
8652 | ||
8653 | /* Allocate a new internal CQ_EVENT entry */ | |
8654 | cq_event = lpfc_sli4_cq_event_alloc(phba); | |
8655 | if (!cq_event) { | |
8656 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8657 | "0602 Failed to allocate CQ_EVENT entry\n"); | |
8658 | return false; | |
8659 | } | |
8660 | ||
8661 | /* Move the CQE into the proper xri abort event list */ | |
8662 | memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted)); | |
8663 | switch (cq->subtype) { | |
8664 | case LPFC_FCP: | |
8665 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8666 | list_add_tail(&cq_event->list, | |
8667 | &phba->sli4_hba.sp_fcp_xri_aborted_work_queue); | |
8668 | /* Set the fcp xri abort event flag */ | |
8669 | phba->hba_flag |= FCP_XRI_ABORT_EVENT; | |
8670 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8671 | workposted = true; | |
8672 | break; | |
8673 | case LPFC_ELS: | |
8674 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8675 | list_add_tail(&cq_event->list, | |
8676 | &phba->sli4_hba.sp_els_xri_aborted_work_queue); | |
8677 | /* Set the els xri abort event flag */ | |
8678 | phba->hba_flag |= ELS_XRI_ABORT_EVENT; | |
8679 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8680 | workposted = true; | |
8681 | break; | |
8682 | default: | |
8683 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8684 | "0603 Invalid work queue CQE subtype (x%x)\n", | |
8685 | cq->subtype); | |
8686 | workposted = false; | |
8687 | break; | |
8688 | } | |
8689 | return workposted; | |
8690 | } | |
8691 | ||
8692 | /** | |
8693 | * lpfc_sli4_sp_handle_wcqe - Process a work-queue completion queue entry | |
8694 | * @phba: Pointer to HBA context object. | |
8695 | * @cq: Pointer to the completion queue. | |
8696 | * @wcqe: Pointer to a completion queue entry. | |
8697 | * | |
8698 | * This routine process a slow-path work-queue completion queue entry. | |
8699 | * | |
8700 | * Return: true if work posted to worker thread, otherwise false. | |
8701 | **/ | |
8702 | static bool | |
8703 | lpfc_sli4_sp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq, | |
8704 | struct lpfc_cqe *cqe) | |
8705 | { | |
8706 | struct lpfc_wcqe_complete wcqe; | |
8707 | bool workposted = false; | |
8708 | ||
8709 | /* Copy the work queue CQE and convert endian order if needed */ | |
8710 | lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe)); | |
8711 | ||
8712 | /* Check and process for different type of WCQE and dispatch */ | |
8713 | switch (bf_get(lpfc_wcqe_c_code, &wcqe)) { | |
8714 | case CQE_CODE_COMPL_WQE: | |
8715 | /* Process the WQ complete event */ | |
8716 | workposted = lpfc_sli4_sp_handle_els_wcqe(phba, | |
8717 | (struct lpfc_wcqe_complete *)&wcqe); | |
8718 | break; | |
8719 | case CQE_CODE_RELEASE_WQE: | |
8720 | /* Process the WQ release event */ | |
8721 | lpfc_sli4_sp_handle_rel_wcqe(phba, | |
8722 | (struct lpfc_wcqe_release *)&wcqe); | |
8723 | break; | |
8724 | case CQE_CODE_XRI_ABORTED: | |
8725 | /* Process the WQ XRI abort event */ | |
8726 | workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq, | |
8727 | (struct sli4_wcqe_xri_aborted *)&wcqe); | |
8728 | break; | |
8729 | default: | |
8730 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8731 | "0388 Not a valid WCQE code: x%x\n", | |
8732 | bf_get(lpfc_wcqe_c_code, &wcqe)); | |
8733 | break; | |
8734 | } | |
8735 | return workposted; | |
8736 | } | |
8737 | ||
8738 | /** | |
8739 | * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry | |
8740 | * @phba: Pointer to HBA context object. | |
8741 | * @rcqe: Pointer to receive-queue completion queue entry. | |
8742 | * | |
8743 | * This routine process a receive-queue completion queue entry. | |
8744 | * | |
8745 | * Return: true if work posted to worker thread, otherwise false. | |
8746 | **/ | |
8747 | static bool | |
8748 | lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe) | |
8749 | { | |
8750 | struct lpfc_rcqe rcqe; | |
8751 | bool workposted = false; | |
8752 | struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq; | |
8753 | struct lpfc_queue *drq = phba->sli4_hba.dat_rq; | |
8754 | struct hbq_dmabuf *dma_buf; | |
8755 | uint32_t status; | |
8756 | unsigned long iflags; | |
8757 | ||
8758 | /* Copy the receive queue CQE and convert endian order if needed */ | |
8759 | lpfc_sli_pcimem_bcopy(cqe, &rcqe, sizeof(struct lpfc_rcqe)); | |
8760 | lpfc_sli4_rq_release(hrq, drq); | |
8761 | if (bf_get(lpfc_rcqe_code, &rcqe) != CQE_CODE_RECEIVE) | |
8762 | goto out; | |
8763 | if (bf_get(lpfc_rcqe_rq_id, &rcqe) != hrq->queue_id) | |
8764 | goto out; | |
8765 | ||
8766 | status = bf_get(lpfc_rcqe_status, &rcqe); | |
8767 | switch (status) { | |
8768 | case FC_STATUS_RQ_BUF_LEN_EXCEEDED: | |
8769 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8770 | "2537 Receive Frame Truncated!!\n"); | |
8771 | case FC_STATUS_RQ_SUCCESS: | |
8772 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8773 | dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list); | |
8774 | if (!dma_buf) { | |
8775 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8776 | goto out; | |
8777 | } | |
8778 | memcpy(&dma_buf->rcqe, &rcqe, sizeof(rcqe)); | |
8779 | /* save off the frame for the word thread to process */ | |
8780 | list_add_tail(&dma_buf->dbuf.list, &phba->rb_pend_list); | |
8781 | /* Frame received */ | |
8782 | phba->hba_flag |= HBA_RECEIVE_BUFFER; | |
8783 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8784 | workposted = true; | |
8785 | break; | |
8786 | case FC_STATUS_INSUFF_BUF_NEED_BUF: | |
8787 | case FC_STATUS_INSUFF_BUF_FRM_DISC: | |
8788 | /* Post more buffers if possible */ | |
8789 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8790 | phba->hba_flag |= HBA_POST_RECEIVE_BUFFER; | |
8791 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8792 | workposted = true; | |
8793 | break; | |
8794 | } | |
8795 | out: | |
8796 | return workposted; | |
8797 | ||
8798 | } | |
8799 | ||
8800 | /** | |
8801 | * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry | |
8802 | * @phba: Pointer to HBA context object. | |
8803 | * @eqe: Pointer to fast-path event queue entry. | |
8804 | * | |
8805 | * This routine process a event queue entry from the slow-path event queue. | |
8806 | * It will check the MajorCode and MinorCode to determine this is for a | |
8807 | * completion event on a completion queue, if not, an error shall be logged | |
8808 | * and just return. Otherwise, it will get to the corresponding completion | |
8809 | * queue and process all the entries on that completion queue, rearm the | |
8810 | * completion queue, and then return. | |
8811 | * | |
8812 | **/ | |
8813 | static void | |
8814 | lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe) | |
8815 | { | |
8816 | struct lpfc_queue *cq = NULL, *childq, *speq; | |
8817 | struct lpfc_cqe *cqe; | |
8818 | bool workposted = false; | |
8819 | int ecount = 0; | |
8820 | uint16_t cqid; | |
8821 | ||
8822 | if (bf_get(lpfc_eqe_major_code, eqe) != 0 || | |
8823 | bf_get(lpfc_eqe_minor_code, eqe) != 0) { | |
8824 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8825 | "0359 Not a valid slow-path completion " | |
8826 | "event: majorcode=x%x, minorcode=x%x\n", | |
8827 | bf_get(lpfc_eqe_major_code, eqe), | |
8828 | bf_get(lpfc_eqe_minor_code, eqe)); | |
8829 | return; | |
8830 | } | |
8831 | ||
8832 | /* Get the reference to the corresponding CQ */ | |
8833 | cqid = bf_get(lpfc_eqe_resource_id, eqe); | |
8834 | ||
8835 | /* Search for completion queue pointer matching this cqid */ | |
8836 | speq = phba->sli4_hba.sp_eq; | |
8837 | list_for_each_entry(childq, &speq->child_list, list) { | |
8838 | if (childq->queue_id == cqid) { | |
8839 | cq = childq; | |
8840 | break; | |
8841 | } | |
8842 | } | |
8843 | if (unlikely(!cq)) { | |
8844 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8845 | "0365 Slow-path CQ identifier (%d) does " | |
8846 | "not exist\n", cqid); | |
8847 | return; | |
8848 | } | |
8849 | ||
8850 | /* Process all the entries to the CQ */ | |
8851 | switch (cq->type) { | |
8852 | case LPFC_MCQ: | |
8853 | while ((cqe = lpfc_sli4_cq_get(cq))) { | |
8854 | workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe); | |
8855 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
8856 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM); | |
8857 | } | |
8858 | break; | |
8859 | case LPFC_WCQ: | |
8860 | while ((cqe = lpfc_sli4_cq_get(cq))) { | |
8861 | workposted |= lpfc_sli4_sp_handle_wcqe(phba, cq, cqe); | |
8862 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
8863 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM); | |
8864 | } | |
8865 | break; | |
8866 | case LPFC_RCQ: | |
8867 | while ((cqe = lpfc_sli4_cq_get(cq))) { | |
8868 | workposted |= lpfc_sli4_sp_handle_rcqe(phba, cqe); | |
8869 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
8870 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM); | |
8871 | } | |
8872 | break; | |
8873 | default: | |
8874 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8875 | "0370 Invalid completion queue type (%d)\n", | |
8876 | cq->type); | |
8877 | return; | |
8878 | } | |
8879 | ||
8880 | /* Catch the no cq entry condition, log an error */ | |
8881 | if (unlikely(ecount == 0)) | |
8882 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8883 | "0371 No entry from the CQ: identifier " | |
8884 | "(x%x), type (%d)\n", cq->queue_id, cq->type); | |
8885 | ||
8886 | /* In any case, flash and re-arm the RCQ */ | |
8887 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM); | |
8888 | ||
8889 | /* wake up worker thread if there are works to be done */ | |
8890 | if (workposted) | |
8891 | lpfc_worker_wake_up(phba); | |
8892 | } | |
8893 | ||
8894 | /** | |
8895 | * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry | |
8896 | * @eqe: Pointer to fast-path completion queue entry. | |
8897 | * | |
8898 | * This routine process a fast-path work queue completion entry from fast-path | |
8899 | * event queue for FCP command response completion. | |
8900 | **/ | |
8901 | static void | |
8902 | lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, | |
8903 | struct lpfc_wcqe_complete *wcqe) | |
8904 | { | |
8905 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING]; | |
8906 | struct lpfc_iocbq *cmdiocbq; | |
8907 | struct lpfc_iocbq irspiocbq; | |
8908 | unsigned long iflags; | |
8909 | ||
8910 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8911 | pring->stats.iocb_event++; | |
8912 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8913 | ||
8914 | /* Check for response status */ | |
8915 | if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) { | |
8916 | /* If resource errors reported from HBA, reduce queue | |
8917 | * depth of the SCSI device. | |
8918 | */ | |
8919 | if ((bf_get(lpfc_wcqe_c_status, wcqe) == | |
8920 | IOSTAT_LOCAL_REJECT) && | |
8921 | (wcqe->parameter == IOERR_NO_RESOURCES)) { | |
8922 | phba->lpfc_rampdown_queue_depth(phba); | |
8923 | } | |
8924 | /* Log the error status */ | |
8925 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
8926 | "0373 FCP complete error: status=x%x, " | |
8927 | "hw_status=x%x, total_data_specified=%d, " | |
8928 | "parameter=x%x, word3=x%x\n", | |
8929 | bf_get(lpfc_wcqe_c_status, wcqe), | |
8930 | bf_get(lpfc_wcqe_c_hw_status, wcqe), | |
8931 | wcqe->total_data_placed, wcqe->parameter, | |
8932 | wcqe->word3); | |
8933 | } | |
8934 | ||
8935 | /* Look up the FCP command IOCB and create pseudo response IOCB */ | |
8936 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8937 | cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring, | |
8938 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
8939 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8940 | if (unlikely(!cmdiocbq)) { | |
8941 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
8942 | "0374 FCP complete with no corresponding " | |
8943 | "cmdiocb: iotag (%d)\n", | |
8944 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
8945 | return; | |
8946 | } | |
8947 | if (unlikely(!cmdiocbq->iocb_cmpl)) { | |
8948 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
8949 | "0375 FCP cmdiocb not callback function " | |
8950 | "iotag: (%d)\n", | |
8951 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
8952 | return; | |
8953 | } | |
8954 | ||
8955 | /* Fake the irspiocb and copy necessary response information */ | |
8956 | lpfc_sli4_iocb_param_transfer(&irspiocbq, cmdiocbq, wcqe); | |
8957 | ||
8958 | /* Pass the cmd_iocb and the rsp state to the upper layer */ | |
8959 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq); | |
8960 | } | |
8961 | ||
8962 | /** | |
8963 | * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event | |
8964 | * @phba: Pointer to HBA context object. | |
8965 | * @cq: Pointer to completion queue. | |
8966 | * @wcqe: Pointer to work-queue completion queue entry. | |
8967 | * | |
8968 | * This routine handles an fast-path WQ entry comsumed event by invoking the | |
8969 | * proper WQ release routine to the slow-path WQ. | |
8970 | **/ | |
8971 | static void | |
8972 | lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq, | |
8973 | struct lpfc_wcqe_release *wcqe) | |
8974 | { | |
8975 | struct lpfc_queue *childwq; | |
8976 | bool wqid_matched = false; | |
8977 | uint16_t fcp_wqid; | |
8978 | ||
8979 | /* Check for fast-path FCP work queue release */ | |
8980 | fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe); | |
8981 | list_for_each_entry(childwq, &cq->child_list, list) { | |
8982 | if (childwq->queue_id == fcp_wqid) { | |
8983 | lpfc_sli4_wq_release(childwq, | |
8984 | bf_get(lpfc_wcqe_r_wqe_index, wcqe)); | |
8985 | wqid_matched = true; | |
8986 | break; | |
8987 | } | |
8988 | } | |
8989 | /* Report warning log message if no match found */ | |
8990 | if (wqid_matched != true) | |
8991 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
8992 | "2580 Fast-path wqe consume event carries " | |
8993 | "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid); | |
8994 | } | |
8995 | ||
8996 | /** | |
8997 | * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry | |
8998 | * @cq: Pointer to the completion queue. | |
8999 | * @eqe: Pointer to fast-path completion queue entry. | |
9000 | * | |
9001 | * This routine process a fast-path work queue completion entry from fast-path | |
9002 | * event queue for FCP command response completion. | |
9003 | **/ | |
9004 | static int | |
9005 | lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq, | |
9006 | struct lpfc_cqe *cqe) | |
9007 | { | |
9008 | struct lpfc_wcqe_release wcqe; | |
9009 | bool workposted = false; | |
9010 | ||
9011 | /* Copy the work queue CQE and convert endian order if needed */ | |
9012 | lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe)); | |
9013 | ||
9014 | /* Check and process for different type of WCQE and dispatch */ | |
9015 | switch (bf_get(lpfc_wcqe_c_code, &wcqe)) { | |
9016 | case CQE_CODE_COMPL_WQE: | |
9017 | /* Process the WQ complete event */ | |
9018 | lpfc_sli4_fp_handle_fcp_wcqe(phba, | |
9019 | (struct lpfc_wcqe_complete *)&wcqe); | |
9020 | break; | |
9021 | case CQE_CODE_RELEASE_WQE: | |
9022 | /* Process the WQ release event */ | |
9023 | lpfc_sli4_fp_handle_rel_wcqe(phba, cq, | |
9024 | (struct lpfc_wcqe_release *)&wcqe); | |
9025 | break; | |
9026 | case CQE_CODE_XRI_ABORTED: | |
9027 | /* Process the WQ XRI abort event */ | |
9028 | workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq, | |
9029 | (struct sli4_wcqe_xri_aborted *)&wcqe); | |
9030 | break; | |
9031 | default: | |
9032 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9033 | "0144 Not a valid WCQE code: x%x\n", | |
9034 | bf_get(lpfc_wcqe_c_code, &wcqe)); | |
9035 | break; | |
9036 | } | |
9037 | return workposted; | |
9038 | } | |
9039 | ||
9040 | /** | |
9041 | * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry | |
9042 | * @phba: Pointer to HBA context object. | |
9043 | * @eqe: Pointer to fast-path event queue entry. | |
9044 | * | |
9045 | * This routine process a event queue entry from the fast-path event queue. | |
9046 | * It will check the MajorCode and MinorCode to determine this is for a | |
9047 | * completion event on a completion queue, if not, an error shall be logged | |
9048 | * and just return. Otherwise, it will get to the corresponding completion | |
9049 | * queue and process all the entries on the completion queue, rearm the | |
9050 | * completion queue, and then return. | |
9051 | **/ | |
9052 | static void | |
9053 | lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe, | |
9054 | uint32_t fcp_cqidx) | |
9055 | { | |
9056 | struct lpfc_queue *cq; | |
9057 | struct lpfc_cqe *cqe; | |
9058 | bool workposted = false; | |
9059 | uint16_t cqid; | |
9060 | int ecount = 0; | |
9061 | ||
9062 | if (unlikely(bf_get(lpfc_eqe_major_code, eqe) != 0) || | |
9063 | unlikely(bf_get(lpfc_eqe_minor_code, eqe) != 0)) { | |
9064 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9065 | "0366 Not a valid fast-path completion " | |
9066 | "event: majorcode=x%x, minorcode=x%x\n", | |
9067 | bf_get(lpfc_eqe_major_code, eqe), | |
9068 | bf_get(lpfc_eqe_minor_code, eqe)); | |
9069 | return; | |
9070 | } | |
9071 | ||
9072 | cq = phba->sli4_hba.fcp_cq[fcp_cqidx]; | |
9073 | if (unlikely(!cq)) { | |
9074 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9075 | "0367 Fast-path completion queue does not " | |
9076 | "exist\n"); | |
9077 | return; | |
9078 | } | |
9079 | ||
9080 | /* Get the reference to the corresponding CQ */ | |
9081 | cqid = bf_get(lpfc_eqe_resource_id, eqe); | |
9082 | if (unlikely(cqid != cq->queue_id)) { | |
9083 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9084 | "0368 Miss-matched fast-path completion " | |
9085 | "queue identifier: eqcqid=%d, fcpcqid=%d\n", | |
9086 | cqid, cq->queue_id); | |
9087 | return; | |
9088 | } | |
9089 | ||
9090 | /* Process all the entries to the CQ */ | |
9091 | while ((cqe = lpfc_sli4_cq_get(cq))) { | |
9092 | workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe); | |
9093 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
9094 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM); | |
9095 | } | |
9096 | ||
9097 | /* Catch the no cq entry condition */ | |
9098 | if (unlikely(ecount == 0)) | |
9099 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9100 | "0369 No entry from fast-path completion " | |
9101 | "queue fcpcqid=%d\n", cq->queue_id); | |
9102 | ||
9103 | /* In any case, flash and re-arm the CQ */ | |
9104 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM); | |
9105 | ||
9106 | /* wake up worker thread if there are works to be done */ | |
9107 | if (workposted) | |
9108 | lpfc_worker_wake_up(phba); | |
9109 | } | |
9110 | ||
9111 | static void | |
9112 | lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq) | |
9113 | { | |
9114 | struct lpfc_eqe *eqe; | |
9115 | ||
9116 | /* walk all the EQ entries and drop on the floor */ | |
9117 | while ((eqe = lpfc_sli4_eq_get(eq))) | |
9118 | ; | |
9119 | ||
9120 | /* Clear and re-arm the EQ */ | |
9121 | lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM); | |
9122 | } | |
9123 | ||
9124 | /** | |
9125 | * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device | |
9126 | * @irq: Interrupt number. | |
9127 | * @dev_id: The device context pointer. | |
9128 | * | |
9129 | * This function is directly called from the PCI layer as an interrupt | |
9130 | * service routine when device with SLI-4 interface spec is enabled with | |
9131 | * MSI-X multi-message interrupt mode and there are slow-path events in | |
9132 | * the HBA. However, when the device is enabled with either MSI or Pin-IRQ | |
9133 | * interrupt mode, this function is called as part of the device-level | |
9134 | * interrupt handler. When the PCI slot is in error recovery or the HBA is | |
9135 | * undergoing initialization, the interrupt handler will not process the | |
9136 | * interrupt. The link attention and ELS ring attention events are handled | |
9137 | * by the worker thread. The interrupt handler signals the worker thread | |
9138 | * and returns for these events. This function is called without any lock | |
9139 | * held. It gets the hbalock to access and update SLI data structures. | |
9140 | * | |
9141 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
9142 | * returns IRQ_NONE. | |
9143 | **/ | |
9144 | irqreturn_t | |
9145 | lpfc_sli4_sp_intr_handler(int irq, void *dev_id) | |
9146 | { | |
9147 | struct lpfc_hba *phba; | |
9148 | struct lpfc_queue *speq; | |
9149 | struct lpfc_eqe *eqe; | |
9150 | unsigned long iflag; | |
9151 | int ecount = 0; | |
9152 | ||
9153 | /* | |
9154 | * Get the driver's phba structure from the dev_id | |
9155 | */ | |
9156 | phba = (struct lpfc_hba *)dev_id; | |
9157 | ||
9158 | if (unlikely(!phba)) | |
9159 | return IRQ_NONE; | |
9160 | ||
9161 | /* Get to the EQ struct associated with this vector */ | |
9162 | speq = phba->sli4_hba.sp_eq; | |
9163 | ||
9164 | /* Check device state for handling interrupt */ | |
9165 | if (unlikely(lpfc_intr_state_check(phba))) { | |
9166 | /* Check again for link_state with lock held */ | |
9167 | spin_lock_irqsave(&phba->hbalock, iflag); | |
9168 | if (phba->link_state < LPFC_LINK_DOWN) | |
9169 | /* Flush, clear interrupt, and rearm the EQ */ | |
9170 | lpfc_sli4_eq_flush(phba, speq); | |
9171 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
9172 | return IRQ_NONE; | |
9173 | } | |
9174 | ||
9175 | /* | |
9176 | * Process all the event on FCP slow-path EQ | |
9177 | */ | |
9178 | while ((eqe = lpfc_sli4_eq_get(speq))) { | |
9179 | lpfc_sli4_sp_handle_eqe(phba, eqe); | |
9180 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
9181 | lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM); | |
9182 | } | |
9183 | ||
9184 | /* Always clear and re-arm the slow-path EQ */ | |
9185 | lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM); | |
9186 | ||
9187 | /* Catch the no cq entry condition */ | |
9188 | if (unlikely(ecount == 0)) { | |
9189 | if (phba->intr_type == MSIX) | |
9190 | /* MSI-X treated interrupt served as no EQ share INT */ | |
9191 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9192 | "0357 MSI-X interrupt with no EQE\n"); | |
9193 | else | |
9194 | /* Non MSI-X treated on interrupt as EQ share INT */ | |
9195 | return IRQ_NONE; | |
9196 | } | |
9197 | ||
9198 | return IRQ_HANDLED; | |
9199 | } /* lpfc_sli4_sp_intr_handler */ | |
9200 | ||
9201 | /** | |
9202 | * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device | |
9203 | * @irq: Interrupt number. | |
9204 | * @dev_id: The device context pointer. | |
9205 | * | |
9206 | * This function is directly called from the PCI layer as an interrupt | |
9207 | * service routine when device with SLI-4 interface spec is enabled with | |
9208 | * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB | |
9209 | * ring event in the HBA. However, when the device is enabled with either | |
9210 | * MSI or Pin-IRQ interrupt mode, this function is called as part of the | |
9211 | * device-level interrupt handler. When the PCI slot is in error recovery | |
9212 | * or the HBA is undergoing initialization, the interrupt handler will not | |
9213 | * process the interrupt. The SCSI FCP fast-path ring event are handled in | |
9214 | * the intrrupt context. This function is called without any lock held. | |
9215 | * It gets the hbalock to access and update SLI data structures. Note that, | |
9216 | * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is | |
9217 | * equal to that of FCP CQ index. | |
9218 | * | |
9219 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
9220 | * returns IRQ_NONE. | |
9221 | **/ | |
9222 | irqreturn_t | |
9223 | lpfc_sli4_fp_intr_handler(int irq, void *dev_id) | |
9224 | { | |
9225 | struct lpfc_hba *phba; | |
9226 | struct lpfc_fcp_eq_hdl *fcp_eq_hdl; | |
9227 | struct lpfc_queue *fpeq; | |
9228 | struct lpfc_eqe *eqe; | |
9229 | unsigned long iflag; | |
9230 | int ecount = 0; | |
9231 | uint32_t fcp_eqidx; | |
9232 | ||
9233 | /* Get the driver's phba structure from the dev_id */ | |
9234 | fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id; | |
9235 | phba = fcp_eq_hdl->phba; | |
9236 | fcp_eqidx = fcp_eq_hdl->idx; | |
9237 | ||
9238 | if (unlikely(!phba)) | |
9239 | return IRQ_NONE; | |
9240 | ||
9241 | /* Get to the EQ struct associated with this vector */ | |
9242 | fpeq = phba->sli4_hba.fp_eq[fcp_eqidx]; | |
9243 | ||
9244 | /* Check device state for handling interrupt */ | |
9245 | if (unlikely(lpfc_intr_state_check(phba))) { | |
9246 | /* Check again for link_state with lock held */ | |
9247 | spin_lock_irqsave(&phba->hbalock, iflag); | |
9248 | if (phba->link_state < LPFC_LINK_DOWN) | |
9249 | /* Flush, clear interrupt, and rearm the EQ */ | |
9250 | lpfc_sli4_eq_flush(phba, fpeq); | |
9251 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
9252 | return IRQ_NONE; | |
9253 | } | |
9254 | ||
9255 | /* | |
9256 | * Process all the event on FCP fast-path EQ | |
9257 | */ | |
9258 | while ((eqe = lpfc_sli4_eq_get(fpeq))) { | |
9259 | lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx); | |
9260 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
9261 | lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM); | |
9262 | } | |
9263 | ||
9264 | /* Always clear and re-arm the fast-path EQ */ | |
9265 | lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM); | |
9266 | ||
9267 | if (unlikely(ecount == 0)) { | |
9268 | if (phba->intr_type == MSIX) | |
9269 | /* MSI-X treated interrupt served as no EQ share INT */ | |
9270 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9271 | "0358 MSI-X interrupt with no EQE\n"); | |
9272 | else | |
9273 | /* Non MSI-X treated on interrupt as EQ share INT */ | |
9274 | return IRQ_NONE; | |
9275 | } | |
9276 | ||
9277 | return IRQ_HANDLED; | |
9278 | } /* lpfc_sli4_fp_intr_handler */ | |
9279 | ||
9280 | /** | |
9281 | * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device | |
9282 | * @irq: Interrupt number. | |
9283 | * @dev_id: The device context pointer. | |
9284 | * | |
9285 | * This function is the device-level interrupt handler to device with SLI-4 | |
9286 | * interface spec, called from the PCI layer when either MSI or Pin-IRQ | |
9287 | * interrupt mode is enabled and there is an event in the HBA which requires | |
9288 | * driver attention. This function invokes the slow-path interrupt attention | |
9289 | * handling function and fast-path interrupt attention handling function in | |
9290 | * turn to process the relevant HBA attention events. This function is called | |
9291 | * without any lock held. It gets the hbalock to access and update SLI data | |
9292 | * structures. | |
9293 | * | |
9294 | * This function returns IRQ_HANDLED when interrupt is handled, else it | |
9295 | * returns IRQ_NONE. | |
9296 | **/ | |
9297 | irqreturn_t | |
9298 | lpfc_sli4_intr_handler(int irq, void *dev_id) | |
9299 | { | |
9300 | struct lpfc_hba *phba; | |
9301 | irqreturn_t sp_irq_rc, fp_irq_rc; | |
9302 | bool fp_handled = false; | |
9303 | uint32_t fcp_eqidx; | |
9304 | ||
9305 | /* Get the driver's phba structure from the dev_id */ | |
9306 | phba = (struct lpfc_hba *)dev_id; | |
9307 | ||
9308 | if (unlikely(!phba)) | |
9309 | return IRQ_NONE; | |
9310 | ||
9311 | /* | |
9312 | * Invokes slow-path host attention interrupt handling as appropriate. | |
9313 | */ | |
9314 | sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id); | |
9315 | ||
9316 | /* | |
9317 | * Invoke fast-path host attention interrupt handling as appropriate. | |
9318 | */ | |
9319 | for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { | |
9320 | fp_irq_rc = lpfc_sli4_fp_intr_handler(irq, | |
9321 | &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]); | |
9322 | if (fp_irq_rc == IRQ_HANDLED) | |
9323 | fp_handled |= true; | |
9324 | } | |
9325 | ||
9326 | return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc; | |
9327 | } /* lpfc_sli4_intr_handler */ | |
9328 | ||
9329 | /** | |
9330 | * lpfc_sli4_queue_free - free a queue structure and associated memory | |
9331 | * @queue: The queue structure to free. | |
9332 | * | |
9333 | * This function frees a queue structure and the DMAable memeory used for | |
9334 | * the host resident queue. This function must be called after destroying the | |
9335 | * queue on the HBA. | |
9336 | **/ | |
9337 | void | |
9338 | lpfc_sli4_queue_free(struct lpfc_queue *queue) | |
9339 | { | |
9340 | struct lpfc_dmabuf *dmabuf; | |
9341 | ||
9342 | if (!queue) | |
9343 | return; | |
9344 | ||
9345 | while (!list_empty(&queue->page_list)) { | |
9346 | list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf, | |
9347 | list); | |
9348 | dma_free_coherent(&queue->phba->pcidev->dev, PAGE_SIZE, | |
9349 | dmabuf->virt, dmabuf->phys); | |
9350 | kfree(dmabuf); | |
9351 | } | |
9352 | kfree(queue); | |
9353 | return; | |
9354 | } | |
9355 | ||
9356 | /** | |
9357 | * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure | |
9358 | * @phba: The HBA that this queue is being created on. | |
9359 | * @entry_size: The size of each queue entry for this queue. | |
9360 | * @entry count: The number of entries that this queue will handle. | |
9361 | * | |
9362 | * This function allocates a queue structure and the DMAable memory used for | |
9363 | * the host resident queue. This function must be called before creating the | |
9364 | * queue on the HBA. | |
9365 | **/ | |
9366 | struct lpfc_queue * | |
9367 | lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size, | |
9368 | uint32_t entry_count) | |
9369 | { | |
9370 | struct lpfc_queue *queue; | |
9371 | struct lpfc_dmabuf *dmabuf; | |
9372 | int x, total_qe_count; | |
9373 | void *dma_pointer; | |
9374 | ||
9375 | ||
9376 | queue = kzalloc(sizeof(struct lpfc_queue) + | |
9377 | (sizeof(union sli4_qe) * entry_count), GFP_KERNEL); | |
9378 | if (!queue) | |
9379 | return NULL; | |
9380 | queue->page_count = (PAGE_ALIGN(entry_size * entry_count))/PAGE_SIZE; | |
9381 | INIT_LIST_HEAD(&queue->list); | |
9382 | INIT_LIST_HEAD(&queue->page_list); | |
9383 | INIT_LIST_HEAD(&queue->child_list); | |
9384 | for (x = 0, total_qe_count = 0; x < queue->page_count; x++) { | |
9385 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
9386 | if (!dmabuf) | |
9387 | goto out_fail; | |
9388 | dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, | |
9389 | PAGE_SIZE, &dmabuf->phys, | |
9390 | GFP_KERNEL); | |
9391 | if (!dmabuf->virt) { | |
9392 | kfree(dmabuf); | |
9393 | goto out_fail; | |
9394 | } | |
9395 | memset(dmabuf->virt, 0, PAGE_SIZE); | |
9396 | dmabuf->buffer_tag = x; | |
9397 | list_add_tail(&dmabuf->list, &queue->page_list); | |
9398 | /* initialize queue's entry array */ | |
9399 | dma_pointer = dmabuf->virt; | |
9400 | for (; total_qe_count < entry_count && | |
9401 | dma_pointer < (PAGE_SIZE + dmabuf->virt); | |
9402 | total_qe_count++, dma_pointer += entry_size) { | |
9403 | queue->qe[total_qe_count].address = dma_pointer; | |
9404 | } | |
9405 | } | |
9406 | queue->entry_size = entry_size; | |
9407 | queue->entry_count = entry_count; | |
9408 | queue->phba = phba; | |
9409 | ||
9410 | return queue; | |
9411 | out_fail: | |
9412 | lpfc_sli4_queue_free(queue); | |
9413 | return NULL; | |
9414 | } | |
9415 | ||
9416 | /** | |
9417 | * lpfc_eq_create - Create an Event Queue on the HBA | |
9418 | * @phba: HBA structure that indicates port to create a queue on. | |
9419 | * @eq: The queue structure to use to create the event queue. | |
9420 | * @imax: The maximum interrupt per second limit. | |
9421 | * | |
9422 | * This function creates an event queue, as detailed in @eq, on a port, | |
9423 | * described by @phba by sending an EQ_CREATE mailbox command to the HBA. | |
9424 | * | |
9425 | * The @phba struct is used to send mailbox command to HBA. The @eq struct | |
9426 | * is used to get the entry count and entry size that are necessary to | |
9427 | * determine the number of pages to allocate and use for this queue. This | |
9428 | * function will send the EQ_CREATE mailbox command to the HBA to setup the | |
9429 | * event queue. This function is asynchronous and will wait for the mailbox | |
9430 | * command to finish before continuing. | |
9431 | * | |
9432 | * On success this function will return a zero. If unable to allocate enough | |
9433 | * memory this function will return ENOMEM. If the queue create mailbox command | |
9434 | * fails this function will return ENXIO. | |
9435 | **/ | |
9436 | uint32_t | |
9437 | lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax) | |
9438 | { | |
9439 | struct lpfc_mbx_eq_create *eq_create; | |
9440 | LPFC_MBOXQ_t *mbox; | |
9441 | int rc, length, status = 0; | |
9442 | struct lpfc_dmabuf *dmabuf; | |
9443 | uint32_t shdr_status, shdr_add_status; | |
9444 | union lpfc_sli4_cfg_shdr *shdr; | |
9445 | uint16_t dmult; | |
9446 | ||
9447 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
9448 | if (!mbox) | |
9449 | return -ENOMEM; | |
9450 | length = (sizeof(struct lpfc_mbx_eq_create) - | |
9451 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9452 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
9453 | LPFC_MBOX_OPCODE_EQ_CREATE, | |
9454 | length, LPFC_SLI4_MBX_EMBED); | |
9455 | eq_create = &mbox->u.mqe.un.eq_create; | |
9456 | bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request, | |
9457 | eq->page_count); | |
9458 | bf_set(lpfc_eq_context_size, &eq_create->u.request.context, | |
9459 | LPFC_EQE_SIZE); | |
9460 | bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1); | |
9461 | /* Calculate delay multiper from maximum interrupt per second */ | |
9462 | dmult = LPFC_DMULT_CONST/imax - 1; | |
9463 | bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context, | |
9464 | dmult); | |
9465 | switch (eq->entry_count) { | |
9466 | default: | |
9467 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9468 | "0360 Unsupported EQ count. (%d)\n", | |
9469 | eq->entry_count); | |
9470 | if (eq->entry_count < 256) | |
9471 | return -EINVAL; | |
9472 | /* otherwise default to smallest count (drop through) */ | |
9473 | case 256: | |
9474 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9475 | LPFC_EQ_CNT_256); | |
9476 | break; | |
9477 | case 512: | |
9478 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9479 | LPFC_EQ_CNT_512); | |
9480 | break; | |
9481 | case 1024: | |
9482 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9483 | LPFC_EQ_CNT_1024); | |
9484 | break; | |
9485 | case 2048: | |
9486 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9487 | LPFC_EQ_CNT_2048); | |
9488 | break; | |
9489 | case 4096: | |
9490 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9491 | LPFC_EQ_CNT_4096); | |
9492 | break; | |
9493 | } | |
9494 | list_for_each_entry(dmabuf, &eq->page_list, list) { | |
9495 | eq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
9496 | putPaddrLow(dmabuf->phys); | |
9497 | eq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9498 | putPaddrHigh(dmabuf->phys); | |
9499 | } | |
9500 | mbox->vport = phba->pport; | |
9501 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
9502 | mbox->context1 = NULL; | |
9503 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
9504 | shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr; | |
9505 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9506 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9507 | if (shdr_status || shdr_add_status || rc) { | |
9508 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9509 | "2500 EQ_CREATE mailbox failed with " | |
9510 | "status x%x add_status x%x, mbx status x%x\n", | |
9511 | shdr_status, shdr_add_status, rc); | |
9512 | status = -ENXIO; | |
9513 | } | |
9514 | eq->type = LPFC_EQ; | |
9515 | eq->subtype = LPFC_NONE; | |
9516 | eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response); | |
9517 | if (eq->queue_id == 0xFFFF) | |
9518 | status = -ENXIO; | |
9519 | eq->host_index = 0; | |
9520 | eq->hba_index = 0; | |
9521 | ||
9522 | mempool_free(mbox, phba->mbox_mem_pool); | |
9523 | return status; | |
9524 | } | |
9525 | ||
9526 | /** | |
9527 | * lpfc_cq_create - Create a Completion Queue on the HBA | |
9528 | * @phba: HBA structure that indicates port to create a queue on. | |
9529 | * @cq: The queue structure to use to create the completion queue. | |
9530 | * @eq: The event queue to bind this completion queue to. | |
9531 | * | |
9532 | * This function creates a completion queue, as detailed in @wq, on a port, | |
9533 | * described by @phba by sending a CQ_CREATE mailbox command to the HBA. | |
9534 | * | |
9535 | * The @phba struct is used to send mailbox command to HBA. The @cq struct | |
9536 | * is used to get the entry count and entry size that are necessary to | |
9537 | * determine the number of pages to allocate and use for this queue. The @eq | |
9538 | * is used to indicate which event queue to bind this completion queue to. This | |
9539 | * function will send the CQ_CREATE mailbox command to the HBA to setup the | |
9540 | * completion queue. This function is asynchronous and will wait for the mailbox | |
9541 | * command to finish before continuing. | |
9542 | * | |
9543 | * On success this function will return a zero. If unable to allocate enough | |
9544 | * memory this function will return ENOMEM. If the queue create mailbox command | |
9545 | * fails this function will return ENXIO. | |
9546 | **/ | |
9547 | uint32_t | |
9548 | lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq, | |
9549 | struct lpfc_queue *eq, uint32_t type, uint32_t subtype) | |
9550 | { | |
9551 | struct lpfc_mbx_cq_create *cq_create; | |
9552 | struct lpfc_dmabuf *dmabuf; | |
9553 | LPFC_MBOXQ_t *mbox; | |
9554 | int rc, length, status = 0; | |
9555 | uint32_t shdr_status, shdr_add_status; | |
9556 | union lpfc_sli4_cfg_shdr *shdr; | |
9557 | ||
9558 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
9559 | if (!mbox) | |
9560 | return -ENOMEM; | |
9561 | length = (sizeof(struct lpfc_mbx_cq_create) - | |
9562 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9563 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
9564 | LPFC_MBOX_OPCODE_CQ_CREATE, | |
9565 | length, LPFC_SLI4_MBX_EMBED); | |
9566 | cq_create = &mbox->u.mqe.un.cq_create; | |
9567 | bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request, | |
9568 | cq->page_count); | |
9569 | bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1); | |
9570 | bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1); | |
9571 | bf_set(lpfc_cq_eq_id, &cq_create->u.request.context, eq->queue_id); | |
9572 | switch (cq->entry_count) { | |
9573 | default: | |
9574 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9575 | "0361 Unsupported CQ count. (%d)\n", | |
9576 | cq->entry_count); | |
9577 | if (cq->entry_count < 256) | |
9578 | return -EINVAL; | |
9579 | /* otherwise default to smallest count (drop through) */ | |
9580 | case 256: | |
9581 | bf_set(lpfc_cq_context_count, &cq_create->u.request.context, | |
9582 | LPFC_CQ_CNT_256); | |
9583 | break; | |
9584 | case 512: | |
9585 | bf_set(lpfc_cq_context_count, &cq_create->u.request.context, | |
9586 | LPFC_CQ_CNT_512); | |
9587 | break; | |
9588 | case 1024: | |
9589 | bf_set(lpfc_cq_context_count, &cq_create->u.request.context, | |
9590 | LPFC_CQ_CNT_1024); | |
9591 | break; | |
9592 | } | |
9593 | list_for_each_entry(dmabuf, &cq->page_list, list) { | |
9594 | cq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
9595 | putPaddrLow(dmabuf->phys); | |
9596 | cq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9597 | putPaddrHigh(dmabuf->phys); | |
9598 | } | |
9599 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
9600 | ||
9601 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
9602 | shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr; | |
9603 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9604 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9605 | if (shdr_status || shdr_add_status || rc) { | |
9606 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9607 | "2501 CQ_CREATE mailbox failed with " | |
9608 | "status x%x add_status x%x, mbx status x%x\n", | |
9609 | shdr_status, shdr_add_status, rc); | |
9610 | status = -ENXIO; | |
9611 | goto out; | |
9612 | } | |
9613 | cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response); | |
9614 | if (cq->queue_id == 0xFFFF) { | |
9615 | status = -ENXIO; | |
9616 | goto out; | |
9617 | } | |
9618 | /* link the cq onto the parent eq child list */ | |
9619 | list_add_tail(&cq->list, &eq->child_list); | |
9620 | /* Set up completion queue's type and subtype */ | |
9621 | cq->type = type; | |
9622 | cq->subtype = subtype; | |
9623 | cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response); | |
9624 | cq->host_index = 0; | |
9625 | cq->hba_index = 0; | |
9626 | ||
9627 | out: | |
9628 | mempool_free(mbox, phba->mbox_mem_pool); | |
9629 | return status; | |
9630 | } | |
9631 | ||
9632 | /** | |
9633 | * lpfc_mq_create - Create a mailbox Queue on the HBA | |
9634 | * @phba: HBA structure that indicates port to create a queue on. | |
9635 | * @mq: The queue structure to use to create the mailbox queue. | |
9636 | * | |
9637 | * This function creates a mailbox queue, as detailed in @mq, on a port, | |
9638 | * described by @phba by sending a MQ_CREATE mailbox command to the HBA. | |
9639 | * | |
9640 | * The @phba struct is used to send mailbox command to HBA. The @cq struct | |
9641 | * is used to get the entry count and entry size that are necessary to | |
9642 | * determine the number of pages to allocate and use for this queue. This | |
9643 | * function will send the MQ_CREATE mailbox command to the HBA to setup the | |
9644 | * mailbox queue. This function is asynchronous and will wait for the mailbox | |
9645 | * command to finish before continuing. | |
9646 | * | |
9647 | * On success this function will return a zero. If unable to allocate enough | |
9648 | * memory this function will return ENOMEM. If the queue create mailbox command | |
9649 | * fails this function will return ENXIO. | |
9650 | **/ | |
9651 | uint32_t | |
9652 | lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq, | |
9653 | struct lpfc_queue *cq, uint32_t subtype) | |
9654 | { | |
9655 | struct lpfc_mbx_mq_create *mq_create; | |
9656 | struct lpfc_dmabuf *dmabuf; | |
9657 | LPFC_MBOXQ_t *mbox; | |
9658 | int rc, length, status = 0; | |
9659 | uint32_t shdr_status, shdr_add_status; | |
9660 | union lpfc_sli4_cfg_shdr *shdr; | |
9661 | ||
9662 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
9663 | if (!mbox) | |
9664 | return -ENOMEM; | |
9665 | length = (sizeof(struct lpfc_mbx_mq_create) - | |
9666 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9667 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
9668 | LPFC_MBOX_OPCODE_MQ_CREATE, | |
9669 | length, LPFC_SLI4_MBX_EMBED); | |
9670 | mq_create = &mbox->u.mqe.un.mq_create; | |
9671 | bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request, | |
9672 | mq->page_count); | |
9673 | bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context, | |
9674 | cq->queue_id); | |
9675 | bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1); | |
9676 | switch (mq->entry_count) { | |
9677 | default: | |
9678 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9679 | "0362 Unsupported MQ count. (%d)\n", | |
9680 | mq->entry_count); | |
9681 | if (mq->entry_count < 16) | |
9682 | return -EINVAL; | |
9683 | /* otherwise default to smallest count (drop through) */ | |
9684 | case 16: | |
9685 | bf_set(lpfc_mq_context_count, &mq_create->u.request.context, | |
9686 | LPFC_MQ_CNT_16); | |
9687 | break; | |
9688 | case 32: | |
9689 | bf_set(lpfc_mq_context_count, &mq_create->u.request.context, | |
9690 | LPFC_MQ_CNT_32); | |
9691 | break; | |
9692 | case 64: | |
9693 | bf_set(lpfc_mq_context_count, &mq_create->u.request.context, | |
9694 | LPFC_MQ_CNT_64); | |
9695 | break; | |
9696 | case 128: | |
9697 | bf_set(lpfc_mq_context_count, &mq_create->u.request.context, | |
9698 | LPFC_MQ_CNT_128); | |
9699 | break; | |
9700 | } | |
9701 | list_for_each_entry(dmabuf, &mq->page_list, list) { | |
9702 | mq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
9703 | putPaddrLow(dmabuf->phys); | |
9704 | mq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9705 | putPaddrHigh(dmabuf->phys); | |
9706 | } | |
9707 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
9708 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
9709 | shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr; | |
9710 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9711 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9712 | if (shdr_status || shdr_add_status || rc) { | |
9713 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9714 | "2502 MQ_CREATE mailbox failed with " | |
9715 | "status x%x add_status x%x, mbx status x%x\n", | |
9716 | shdr_status, shdr_add_status, rc); | |
9717 | status = -ENXIO; | |
9718 | goto out; | |
9719 | } | |
9720 | mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id, &mq_create->u.response); | |
9721 | if (mq->queue_id == 0xFFFF) { | |
9722 | status = -ENXIO; | |
9723 | goto out; | |
9724 | } | |
9725 | mq->type = LPFC_MQ; | |
9726 | mq->subtype = subtype; | |
9727 | mq->host_index = 0; | |
9728 | mq->hba_index = 0; | |
9729 | ||
9730 | /* link the mq onto the parent cq child list */ | |
9731 | list_add_tail(&mq->list, &cq->child_list); | |
9732 | out: | |
9733 | mempool_free(mbox, phba->mbox_mem_pool); | |
9734 | return status; | |
9735 | } | |
9736 | ||
9737 | /** | |
9738 | * lpfc_wq_create - Create a Work Queue on the HBA | |
9739 | * @phba: HBA structure that indicates port to create a queue on. | |
9740 | * @wq: The queue structure to use to create the work queue. | |
9741 | * @cq: The completion queue to bind this work queue to. | |
9742 | * @subtype: The subtype of the work queue indicating its functionality. | |
9743 | * | |
9744 | * This function creates a work queue, as detailed in @wq, on a port, described | |
9745 | * by @phba by sending a WQ_CREATE mailbox command to the HBA. | |
9746 | * | |
9747 | * The @phba struct is used to send mailbox command to HBA. The @wq struct | |
9748 | * is used to get the entry count and entry size that are necessary to | |
9749 | * determine the number of pages to allocate and use for this queue. The @cq | |
9750 | * is used to indicate which completion queue to bind this work queue to. This | |
9751 | * function will send the WQ_CREATE mailbox command to the HBA to setup the | |
9752 | * work queue. This function is asynchronous and will wait for the mailbox | |
9753 | * command to finish before continuing. | |
9754 | * | |
9755 | * On success this function will return a zero. If unable to allocate enough | |
9756 | * memory this function will return ENOMEM. If the queue create mailbox command | |
9757 | * fails this function will return ENXIO. | |
9758 | **/ | |
9759 | uint32_t | |
9760 | lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq, | |
9761 | struct lpfc_queue *cq, uint32_t subtype) | |
9762 | { | |
9763 | struct lpfc_mbx_wq_create *wq_create; | |
9764 | struct lpfc_dmabuf *dmabuf; | |
9765 | LPFC_MBOXQ_t *mbox; | |
9766 | int rc, length, status = 0; | |
9767 | uint32_t shdr_status, shdr_add_status; | |
9768 | union lpfc_sli4_cfg_shdr *shdr; | |
9769 | ||
9770 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
9771 | if (!mbox) | |
9772 | return -ENOMEM; | |
9773 | length = (sizeof(struct lpfc_mbx_wq_create) - | |
9774 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9775 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
9776 | LPFC_MBOX_OPCODE_FCOE_WQ_CREATE, | |
9777 | length, LPFC_SLI4_MBX_EMBED); | |
9778 | wq_create = &mbox->u.mqe.un.wq_create; | |
9779 | bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request, | |
9780 | wq->page_count); | |
9781 | bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request, | |
9782 | cq->queue_id); | |
9783 | list_for_each_entry(dmabuf, &wq->page_list, list) { | |
9784 | wq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
9785 | putPaddrLow(dmabuf->phys); | |
9786 | wq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9787 | putPaddrHigh(dmabuf->phys); | |
9788 | } | |
9789 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
9790 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
9791 | shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr; | |
9792 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9793 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9794 | if (shdr_status || shdr_add_status || rc) { | |
9795 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9796 | "2503 WQ_CREATE mailbox failed with " | |
9797 | "status x%x add_status x%x, mbx status x%x\n", | |
9798 | shdr_status, shdr_add_status, rc); | |
9799 | status = -ENXIO; | |
9800 | goto out; | |
9801 | } | |
9802 | wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response); | |
9803 | if (wq->queue_id == 0xFFFF) { | |
9804 | status = -ENXIO; | |
9805 | goto out; | |
9806 | } | |
9807 | wq->type = LPFC_WQ; | |
9808 | wq->subtype = subtype; | |
9809 | wq->host_index = 0; | |
9810 | wq->hba_index = 0; | |
9811 | ||
9812 | /* link the wq onto the parent cq child list */ | |
9813 | list_add_tail(&wq->list, &cq->child_list); | |
9814 | out: | |
9815 | mempool_free(mbox, phba->mbox_mem_pool); | |
9816 | return status; | |
9817 | } | |
9818 | ||
9819 | /** | |
9820 | * lpfc_rq_create - Create a Receive Queue on the HBA | |
9821 | * @phba: HBA structure that indicates port to create a queue on. | |
9822 | * @hrq: The queue structure to use to create the header receive queue. | |
9823 | * @drq: The queue structure to use to create the data receive queue. | |
9824 | * @cq: The completion queue to bind this work queue to. | |
9825 | * | |
9826 | * This function creates a receive buffer queue pair , as detailed in @hrq and | |
9827 | * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command | |
9828 | * to the HBA. | |
9829 | * | |
9830 | * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq | |
9831 | * struct is used to get the entry count that is necessary to determine the | |
9832 | * number of pages to use for this queue. The @cq is used to indicate which | |
9833 | * completion queue to bind received buffers that are posted to these queues to. | |
9834 | * This function will send the RQ_CREATE mailbox command to the HBA to setup the | |
9835 | * receive queue pair. This function is asynchronous and will wait for the | |
9836 | * mailbox command to finish before continuing. | |
9837 | * | |
9838 | * On success this function will return a zero. If unable to allocate enough | |
9839 | * memory this function will return ENOMEM. If the queue create mailbox command | |
9840 | * fails this function will return ENXIO. | |
9841 | **/ | |
9842 | uint32_t | |
9843 | lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq, | |
9844 | struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype) | |
9845 | { | |
9846 | struct lpfc_mbx_rq_create *rq_create; | |
9847 | struct lpfc_dmabuf *dmabuf; | |
9848 | LPFC_MBOXQ_t *mbox; | |
9849 | int rc, length, status = 0; | |
9850 | uint32_t shdr_status, shdr_add_status; | |
9851 | union lpfc_sli4_cfg_shdr *shdr; | |
9852 | ||
9853 | if (hrq->entry_count != drq->entry_count) | |
9854 | return -EINVAL; | |
9855 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
9856 | if (!mbox) | |
9857 | return -ENOMEM; | |
9858 | length = (sizeof(struct lpfc_mbx_rq_create) - | |
9859 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9860 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
9861 | LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, | |
9862 | length, LPFC_SLI4_MBX_EMBED); | |
9863 | rq_create = &mbox->u.mqe.un.rq_create; | |
9864 | switch (hrq->entry_count) { | |
9865 | default: | |
9866 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9867 | "2535 Unsupported RQ count. (%d)\n", | |
9868 | hrq->entry_count); | |
9869 | if (hrq->entry_count < 512) | |
9870 | return -EINVAL; | |
9871 | /* otherwise default to smallest count (drop through) */ | |
9872 | case 512: | |
9873 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
9874 | LPFC_RQ_RING_SIZE_512); | |
9875 | break; | |
9876 | case 1024: | |
9877 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
9878 | LPFC_RQ_RING_SIZE_1024); | |
9879 | break; | |
9880 | case 2048: | |
9881 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
9882 | LPFC_RQ_RING_SIZE_2048); | |
9883 | break; | |
9884 | case 4096: | |
9885 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
9886 | LPFC_RQ_RING_SIZE_4096); | |
9887 | break; | |
9888 | } | |
9889 | bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context, | |
9890 | cq->queue_id); | |
9891 | bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request, | |
9892 | hrq->page_count); | |
9893 | bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context, | |
9894 | LPFC_HDR_BUF_SIZE); | |
9895 | list_for_each_entry(dmabuf, &hrq->page_list, list) { | |
9896 | rq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
9897 | putPaddrLow(dmabuf->phys); | |
9898 | rq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9899 | putPaddrHigh(dmabuf->phys); | |
9900 | } | |
9901 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
9902 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
9903 | shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr; | |
9904 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9905 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9906 | if (shdr_status || shdr_add_status || rc) { | |
9907 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9908 | "2504 RQ_CREATE mailbox failed with " | |
9909 | "status x%x add_status x%x, mbx status x%x\n", | |
9910 | shdr_status, shdr_add_status, rc); | |
9911 | status = -ENXIO; | |
9912 | goto out; | |
9913 | } | |
9914 | hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response); | |
9915 | if (hrq->queue_id == 0xFFFF) { | |
9916 | status = -ENXIO; | |
9917 | goto out; | |
9918 | } | |
9919 | hrq->type = LPFC_HRQ; | |
9920 | hrq->subtype = subtype; | |
9921 | hrq->host_index = 0; | |
9922 | hrq->hba_index = 0; | |
9923 | ||
9924 | /* now create the data queue */ | |
9925 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
9926 | LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, | |
9927 | length, LPFC_SLI4_MBX_EMBED); | |
9928 | switch (drq->entry_count) { | |
9929 | default: | |
9930 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9931 | "2536 Unsupported RQ count. (%d)\n", | |
9932 | drq->entry_count); | |
9933 | if (drq->entry_count < 512) | |
9934 | return -EINVAL; | |
9935 | /* otherwise default to smallest count (drop through) */ | |
9936 | case 512: | |
9937 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
9938 | LPFC_RQ_RING_SIZE_512); | |
9939 | break; | |
9940 | case 1024: | |
9941 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
9942 | LPFC_RQ_RING_SIZE_1024); | |
9943 | break; | |
9944 | case 2048: | |
9945 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
9946 | LPFC_RQ_RING_SIZE_2048); | |
9947 | break; | |
9948 | case 4096: | |
9949 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
9950 | LPFC_RQ_RING_SIZE_4096); | |
9951 | break; | |
9952 | } | |
9953 | bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context, | |
9954 | cq->queue_id); | |
9955 | bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request, | |
9956 | drq->page_count); | |
9957 | bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context, | |
9958 | LPFC_DATA_BUF_SIZE); | |
9959 | list_for_each_entry(dmabuf, &drq->page_list, list) { | |
9960 | rq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
9961 | putPaddrLow(dmabuf->phys); | |
9962 | rq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9963 | putPaddrHigh(dmabuf->phys); | |
9964 | } | |
9965 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
9966 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
9967 | shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr; | |
9968 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9969 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9970 | if (shdr_status || shdr_add_status || rc) { | |
9971 | status = -ENXIO; | |
9972 | goto out; | |
9973 | } | |
9974 | drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response); | |
9975 | if (drq->queue_id == 0xFFFF) { | |
9976 | status = -ENXIO; | |
9977 | goto out; | |
9978 | } | |
9979 | drq->type = LPFC_DRQ; | |
9980 | drq->subtype = subtype; | |
9981 | drq->host_index = 0; | |
9982 | drq->hba_index = 0; | |
9983 | ||
9984 | /* link the header and data RQs onto the parent cq child list */ | |
9985 | list_add_tail(&hrq->list, &cq->child_list); | |
9986 | list_add_tail(&drq->list, &cq->child_list); | |
9987 | ||
9988 | out: | |
9989 | mempool_free(mbox, phba->mbox_mem_pool); | |
9990 | return status; | |
9991 | } | |
9992 | ||
9993 | /** | |
9994 | * lpfc_eq_destroy - Destroy an event Queue on the HBA | |
9995 | * @eq: The queue structure associated with the queue to destroy. | |
9996 | * | |
9997 | * This function destroys a queue, as detailed in @eq by sending an mailbox | |
9998 | * command, specific to the type of queue, to the HBA. | |
9999 | * | |
10000 | * The @eq struct is used to get the queue ID of the queue to destroy. | |
10001 | * | |
10002 | * On success this function will return a zero. If the queue destroy mailbox | |
10003 | * command fails this function will return ENXIO. | |
10004 | **/ | |
10005 | uint32_t | |
10006 | lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq) | |
10007 | { | |
10008 | LPFC_MBOXQ_t *mbox; | |
10009 | int rc, length, status = 0; | |
10010 | uint32_t shdr_status, shdr_add_status; | |
10011 | union lpfc_sli4_cfg_shdr *shdr; | |
10012 | ||
10013 | if (!eq) | |
10014 | return -ENODEV; | |
10015 | mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL); | |
10016 | if (!mbox) | |
10017 | return -ENOMEM; | |
10018 | length = (sizeof(struct lpfc_mbx_eq_destroy) - | |
10019 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10020 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
10021 | LPFC_MBOX_OPCODE_EQ_DESTROY, | |
10022 | length, LPFC_SLI4_MBX_EMBED); | |
10023 | bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request, | |
10024 | eq->queue_id); | |
10025 | mbox->vport = eq->phba->pport; | |
10026 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10027 | ||
10028 | rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL); | |
10029 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10030 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10031 | &mbox->u.mqe.un.eq_destroy.header.cfg_shdr; | |
10032 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10033 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10034 | if (shdr_status || shdr_add_status || rc) { | |
10035 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10036 | "2505 EQ_DESTROY mailbox failed with " | |
10037 | "status x%x add_status x%x, mbx status x%x\n", | |
10038 | shdr_status, shdr_add_status, rc); | |
10039 | status = -ENXIO; | |
10040 | } | |
10041 | ||
10042 | /* Remove eq from any list */ | |
10043 | list_del_init(&eq->list); | |
10044 | mempool_free(mbox, eq->phba->mbox_mem_pool); | |
10045 | return status; | |
10046 | } | |
10047 | ||
10048 | /** | |
10049 | * lpfc_cq_destroy - Destroy a Completion Queue on the HBA | |
10050 | * @cq: The queue structure associated with the queue to destroy. | |
10051 | * | |
10052 | * This function destroys a queue, as detailed in @cq by sending an mailbox | |
10053 | * command, specific to the type of queue, to the HBA. | |
10054 | * | |
10055 | * The @cq struct is used to get the queue ID of the queue to destroy. | |
10056 | * | |
10057 | * On success this function will return a zero. If the queue destroy mailbox | |
10058 | * command fails this function will return ENXIO. | |
10059 | **/ | |
10060 | uint32_t | |
10061 | lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq) | |
10062 | { | |
10063 | LPFC_MBOXQ_t *mbox; | |
10064 | int rc, length, status = 0; | |
10065 | uint32_t shdr_status, shdr_add_status; | |
10066 | union lpfc_sli4_cfg_shdr *shdr; | |
10067 | ||
10068 | if (!cq) | |
10069 | return -ENODEV; | |
10070 | mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL); | |
10071 | if (!mbox) | |
10072 | return -ENOMEM; | |
10073 | length = (sizeof(struct lpfc_mbx_cq_destroy) - | |
10074 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10075 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
10076 | LPFC_MBOX_OPCODE_CQ_DESTROY, | |
10077 | length, LPFC_SLI4_MBX_EMBED); | |
10078 | bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request, | |
10079 | cq->queue_id); | |
10080 | mbox->vport = cq->phba->pport; | |
10081 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10082 | rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL); | |
10083 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10084 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10085 | &mbox->u.mqe.un.wq_create.header.cfg_shdr; | |
10086 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10087 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10088 | if (shdr_status || shdr_add_status || rc) { | |
10089 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10090 | "2506 CQ_DESTROY mailbox failed with " | |
10091 | "status x%x add_status x%x, mbx status x%x\n", | |
10092 | shdr_status, shdr_add_status, rc); | |
10093 | status = -ENXIO; | |
10094 | } | |
10095 | /* Remove cq from any list */ | |
10096 | list_del_init(&cq->list); | |
10097 | mempool_free(mbox, cq->phba->mbox_mem_pool); | |
10098 | return status; | |
10099 | } | |
10100 | ||
10101 | /** | |
10102 | * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA | |
10103 | * @qm: The queue structure associated with the queue to destroy. | |
10104 | * | |
10105 | * This function destroys a queue, as detailed in @mq by sending an mailbox | |
10106 | * command, specific to the type of queue, to the HBA. | |
10107 | * | |
10108 | * The @mq struct is used to get the queue ID of the queue to destroy. | |
10109 | * | |
10110 | * On success this function will return a zero. If the queue destroy mailbox | |
10111 | * command fails this function will return ENXIO. | |
10112 | **/ | |
10113 | uint32_t | |
10114 | lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq) | |
10115 | { | |
10116 | LPFC_MBOXQ_t *mbox; | |
10117 | int rc, length, status = 0; | |
10118 | uint32_t shdr_status, shdr_add_status; | |
10119 | union lpfc_sli4_cfg_shdr *shdr; | |
10120 | ||
10121 | if (!mq) | |
10122 | return -ENODEV; | |
10123 | mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL); | |
10124 | if (!mbox) | |
10125 | return -ENOMEM; | |
10126 | length = (sizeof(struct lpfc_mbx_mq_destroy) - | |
10127 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10128 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
10129 | LPFC_MBOX_OPCODE_MQ_DESTROY, | |
10130 | length, LPFC_SLI4_MBX_EMBED); | |
10131 | bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request, | |
10132 | mq->queue_id); | |
10133 | mbox->vport = mq->phba->pport; | |
10134 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10135 | rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL); | |
10136 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10137 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10138 | &mbox->u.mqe.un.mq_destroy.header.cfg_shdr; | |
10139 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10140 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10141 | if (shdr_status || shdr_add_status || rc) { | |
10142 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10143 | "2507 MQ_DESTROY mailbox failed with " | |
10144 | "status x%x add_status x%x, mbx status x%x\n", | |
10145 | shdr_status, shdr_add_status, rc); | |
10146 | status = -ENXIO; | |
10147 | } | |
10148 | /* Remove mq from any list */ | |
10149 | list_del_init(&mq->list); | |
10150 | mempool_free(mbox, mq->phba->mbox_mem_pool); | |
10151 | return status; | |
10152 | } | |
10153 | ||
10154 | /** | |
10155 | * lpfc_wq_destroy - Destroy a Work Queue on the HBA | |
10156 | * @wq: The queue structure associated with the queue to destroy. | |
10157 | * | |
10158 | * This function destroys a queue, as detailed in @wq by sending an mailbox | |
10159 | * command, specific to the type of queue, to the HBA. | |
10160 | * | |
10161 | * The @wq struct is used to get the queue ID of the queue to destroy. | |
10162 | * | |
10163 | * On success this function will return a zero. If the queue destroy mailbox | |
10164 | * command fails this function will return ENXIO. | |
10165 | **/ | |
10166 | uint32_t | |
10167 | lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq) | |
10168 | { | |
10169 | LPFC_MBOXQ_t *mbox; | |
10170 | int rc, length, status = 0; | |
10171 | uint32_t shdr_status, shdr_add_status; | |
10172 | union lpfc_sli4_cfg_shdr *shdr; | |
10173 | ||
10174 | if (!wq) | |
10175 | return -ENODEV; | |
10176 | mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL); | |
10177 | if (!mbox) | |
10178 | return -ENOMEM; | |
10179 | length = (sizeof(struct lpfc_mbx_wq_destroy) - | |
10180 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10181 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10182 | LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY, | |
10183 | length, LPFC_SLI4_MBX_EMBED); | |
10184 | bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request, | |
10185 | wq->queue_id); | |
10186 | mbox->vport = wq->phba->pport; | |
10187 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10188 | rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL); | |
10189 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10190 | &mbox->u.mqe.un.wq_destroy.header.cfg_shdr; | |
10191 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10192 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10193 | if (shdr_status || shdr_add_status || rc) { | |
10194 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10195 | "2508 WQ_DESTROY mailbox failed with " | |
10196 | "status x%x add_status x%x, mbx status x%x\n", | |
10197 | shdr_status, shdr_add_status, rc); | |
10198 | status = -ENXIO; | |
10199 | } | |
10200 | /* Remove wq from any list */ | |
10201 | list_del_init(&wq->list); | |
10202 | mempool_free(mbox, wq->phba->mbox_mem_pool); | |
10203 | return status; | |
10204 | } | |
10205 | ||
10206 | /** | |
10207 | * lpfc_rq_destroy - Destroy a Receive Queue on the HBA | |
10208 | * @rq: The queue structure associated with the queue to destroy. | |
10209 | * | |
10210 | * This function destroys a queue, as detailed in @rq by sending an mailbox | |
10211 | * command, specific to the type of queue, to the HBA. | |
10212 | * | |
10213 | * The @rq struct is used to get the queue ID of the queue to destroy. | |
10214 | * | |
10215 | * On success this function will return a zero. If the queue destroy mailbox | |
10216 | * command fails this function will return ENXIO. | |
10217 | **/ | |
10218 | uint32_t | |
10219 | lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq, | |
10220 | struct lpfc_queue *drq) | |
10221 | { | |
10222 | LPFC_MBOXQ_t *mbox; | |
10223 | int rc, length, status = 0; | |
10224 | uint32_t shdr_status, shdr_add_status; | |
10225 | union lpfc_sli4_cfg_shdr *shdr; | |
10226 | ||
10227 | if (!hrq || !drq) | |
10228 | return -ENODEV; | |
10229 | mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL); | |
10230 | if (!mbox) | |
10231 | return -ENOMEM; | |
10232 | length = (sizeof(struct lpfc_mbx_rq_destroy) - | |
10233 | sizeof(struct mbox_header)); | |
10234 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10235 | LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY, | |
10236 | length, LPFC_SLI4_MBX_EMBED); | |
10237 | bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request, | |
10238 | hrq->queue_id); | |
10239 | mbox->vport = hrq->phba->pport; | |
10240 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10241 | rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL); | |
10242 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10243 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10244 | &mbox->u.mqe.un.rq_destroy.header.cfg_shdr; | |
10245 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10246 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10247 | if (shdr_status || shdr_add_status || rc) { | |
10248 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10249 | "2509 RQ_DESTROY mailbox failed with " | |
10250 | "status x%x add_status x%x, mbx status x%x\n", | |
10251 | shdr_status, shdr_add_status, rc); | |
10252 | if (rc != MBX_TIMEOUT) | |
10253 | mempool_free(mbox, hrq->phba->mbox_mem_pool); | |
10254 | return -ENXIO; | |
10255 | } | |
10256 | bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request, | |
10257 | drq->queue_id); | |
10258 | rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL); | |
10259 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10260 | &mbox->u.mqe.un.rq_destroy.header.cfg_shdr; | |
10261 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10262 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10263 | if (shdr_status || shdr_add_status || rc) { | |
10264 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10265 | "2510 RQ_DESTROY mailbox failed with " | |
10266 | "status x%x add_status x%x, mbx status x%x\n", | |
10267 | shdr_status, shdr_add_status, rc); | |
10268 | status = -ENXIO; | |
10269 | } | |
10270 | list_del_init(&hrq->list); | |
10271 | list_del_init(&drq->list); | |
10272 | mempool_free(mbox, hrq->phba->mbox_mem_pool); | |
10273 | return status; | |
10274 | } | |
10275 | ||
10276 | /** | |
10277 | * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA | |
10278 | * @phba: The virtual port for which this call being executed. | |
10279 | * @pdma_phys_addr0: Physical address of the 1st SGL page. | |
10280 | * @pdma_phys_addr1: Physical address of the 2nd SGL page. | |
10281 | * @xritag: the xritag that ties this io to the SGL pages. | |
10282 | * | |
10283 | * This routine will post the sgl pages for the IO that has the xritag | |
10284 | * that is in the iocbq structure. The xritag is assigned during iocbq | |
10285 | * creation and persists for as long as the driver is loaded. | |
10286 | * if the caller has fewer than 256 scatter gather segments to map then | |
10287 | * pdma_phys_addr1 should be 0. | |
10288 | * If the caller needs to map more than 256 scatter gather segment then | |
10289 | * pdma_phys_addr1 should be a valid physical address. | |
10290 | * physical address for SGLs must be 64 byte aligned. | |
10291 | * If you are going to map 2 SGL's then the first one must have 256 entries | |
10292 | * the second sgl can have between 1 and 256 entries. | |
10293 | * | |
10294 | * Return codes: | |
10295 | * 0 - Success | |
10296 | * -ENXIO, -ENOMEM - Failure | |
10297 | **/ | |
10298 | int | |
10299 | lpfc_sli4_post_sgl(struct lpfc_hba *phba, | |
10300 | dma_addr_t pdma_phys_addr0, | |
10301 | dma_addr_t pdma_phys_addr1, | |
10302 | uint16_t xritag) | |
10303 | { | |
10304 | struct lpfc_mbx_post_sgl_pages *post_sgl_pages; | |
10305 | LPFC_MBOXQ_t *mbox; | |
10306 | int rc; | |
10307 | uint32_t shdr_status, shdr_add_status; | |
10308 | union lpfc_sli4_cfg_shdr *shdr; | |
10309 | ||
10310 | if (xritag == NO_XRI) { | |
10311 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10312 | "0364 Invalid param:\n"); | |
10313 | return -EINVAL; | |
10314 | } | |
10315 | ||
10316 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10317 | if (!mbox) | |
10318 | return -ENOMEM; | |
10319 | ||
10320 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10321 | LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, | |
10322 | sizeof(struct lpfc_mbx_post_sgl_pages) - | |
10323 | sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED); | |
10324 | ||
10325 | post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *) | |
10326 | &mbox->u.mqe.un.post_sgl_pages; | |
10327 | bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag); | |
10328 | bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1); | |
10329 | ||
10330 | post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo = | |
10331 | cpu_to_le32(putPaddrLow(pdma_phys_addr0)); | |
10332 | post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi = | |
10333 | cpu_to_le32(putPaddrHigh(pdma_phys_addr0)); | |
10334 | ||
10335 | post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo = | |
10336 | cpu_to_le32(putPaddrLow(pdma_phys_addr1)); | |
10337 | post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi = | |
10338 | cpu_to_le32(putPaddrHigh(pdma_phys_addr1)); | |
10339 | if (!phba->sli4_hba.intr_enable) | |
10340 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10341 | else | |
10342 | rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); | |
10343 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10344 | shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr; | |
10345 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10346 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10347 | if (rc != MBX_TIMEOUT) | |
10348 | mempool_free(mbox, phba->mbox_mem_pool); | |
10349 | if (shdr_status || shdr_add_status || rc) { | |
10350 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10351 | "2511 POST_SGL mailbox failed with " | |
10352 | "status x%x add_status x%x, mbx status x%x\n", | |
10353 | shdr_status, shdr_add_status, rc); | |
10354 | rc = -ENXIO; | |
10355 | } | |
10356 | return 0; | |
10357 | } | |
10358 | /** | |
10359 | * lpfc_sli4_remove_all_sgl_pages - Post scatter gather list for an XRI to HBA | |
10360 | * @phba: The virtual port for which this call being executed. | |
10361 | * | |
10362 | * This routine will remove all of the sgl pages registered with the hba. | |
10363 | * | |
10364 | * Return codes: | |
10365 | * 0 - Success | |
10366 | * -ENXIO, -ENOMEM - Failure | |
10367 | **/ | |
10368 | int | |
10369 | lpfc_sli4_remove_all_sgl_pages(struct lpfc_hba *phba) | |
10370 | { | |
10371 | LPFC_MBOXQ_t *mbox; | |
10372 | int rc; | |
10373 | uint32_t shdr_status, shdr_add_status; | |
10374 | union lpfc_sli4_cfg_shdr *shdr; | |
10375 | ||
10376 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10377 | if (!mbox) | |
10378 | return -ENOMEM; | |
10379 | ||
10380 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10381 | LPFC_MBOX_OPCODE_FCOE_REMOVE_SGL_PAGES, 0, | |
10382 | LPFC_SLI4_MBX_EMBED); | |
10383 | if (!phba->sli4_hba.intr_enable) | |
10384 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10385 | else | |
10386 | rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); | |
10387 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10388 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10389 | &mbox->u.mqe.un.sli4_config.header.cfg_shdr; | |
10390 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10391 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10392 | if (rc != MBX_TIMEOUT) | |
10393 | mempool_free(mbox, phba->mbox_mem_pool); | |
10394 | if (shdr_status || shdr_add_status || rc) { | |
10395 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10396 | "2512 REMOVE_ALL_SGL_PAGES mailbox failed with " | |
10397 | "status x%x add_status x%x, mbx status x%x\n", | |
10398 | shdr_status, shdr_add_status, rc); | |
10399 | rc = -ENXIO; | |
10400 | } | |
10401 | return rc; | |
10402 | } | |
10403 | ||
10404 | /** | |
10405 | * lpfc_sli4_next_xritag - Get an xritag for the io | |
10406 | * @phba: Pointer to HBA context object. | |
10407 | * | |
10408 | * This function gets an xritag for the iocb. If there is no unused xritag | |
10409 | * it will return 0xffff. | |
10410 | * The function returns the allocated xritag if successful, else returns zero. | |
10411 | * Zero is not a valid xritag. | |
10412 | * The caller is not required to hold any lock. | |
10413 | **/ | |
10414 | uint16_t | |
10415 | lpfc_sli4_next_xritag(struct lpfc_hba *phba) | |
10416 | { | |
10417 | uint16_t xritag; | |
10418 | ||
10419 | spin_lock_irq(&phba->hbalock); | |
10420 | xritag = phba->sli4_hba.next_xri; | |
10421 | if ((xritag != (uint16_t) -1) && xritag < | |
10422 | (phba->sli4_hba.max_cfg_param.max_xri | |
10423 | + phba->sli4_hba.max_cfg_param.xri_base)) { | |
10424 | phba->sli4_hba.next_xri++; | |
10425 | phba->sli4_hba.max_cfg_param.xri_used++; | |
10426 | spin_unlock_irq(&phba->hbalock); | |
10427 | return xritag; | |
10428 | } | |
10429 | spin_unlock_irq(&phba->hbalock); | |
10430 | ||
10431 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10432 | "2004 Failed to allocate XRI.last XRITAG is %d" | |
10433 | " Max XRI is %d, Used XRI is %d\n", | |
10434 | phba->sli4_hba.next_xri, | |
10435 | phba->sli4_hba.max_cfg_param.max_xri, | |
10436 | phba->sli4_hba.max_cfg_param.xri_used); | |
10437 | return -1; | |
10438 | } | |
10439 | ||
10440 | /** | |
10441 | * lpfc_sli4_post_sgl_list - post a block of sgl list to the firmware. | |
10442 | * @phba: pointer to lpfc hba data structure. | |
10443 | * | |
10444 | * This routine is invoked to post a block of driver's sgl pages to the | |
10445 | * HBA using non-embedded mailbox command. No Lock is held. This routine | |
10446 | * is only called when the driver is loading and after all IO has been | |
10447 | * stopped. | |
10448 | **/ | |
10449 | int | |
10450 | lpfc_sli4_post_sgl_list(struct lpfc_hba *phba) | |
10451 | { | |
10452 | struct lpfc_sglq *sglq_entry; | |
10453 | struct lpfc_mbx_post_uembed_sgl_page1 *sgl; | |
10454 | struct sgl_page_pairs *sgl_pg_pairs; | |
10455 | void *viraddr; | |
10456 | LPFC_MBOXQ_t *mbox; | |
10457 | uint32_t reqlen, alloclen, pg_pairs; | |
10458 | uint32_t mbox_tmo; | |
10459 | uint16_t xritag_start = 0; | |
10460 | int els_xri_cnt, rc = 0; | |
10461 | uint32_t shdr_status, shdr_add_status; | |
10462 | union lpfc_sli4_cfg_shdr *shdr; | |
10463 | ||
10464 | /* The number of sgls to be posted */ | |
10465 | els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); | |
10466 | ||
10467 | reqlen = els_xri_cnt * sizeof(struct sgl_page_pairs) + | |
10468 | sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t); | |
10469 | if (reqlen > PAGE_SIZE) { | |
10470 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
10471 | "2559 Block sgl registration required DMA " | |
10472 | "size (%d) great than a page\n", reqlen); | |
10473 | return -ENOMEM; | |
10474 | } | |
10475 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10476 | if (!mbox) { | |
10477 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10478 | "2560 Failed to allocate mbox cmd memory\n"); | |
10479 | return -ENOMEM; | |
10480 | } | |
10481 | ||
10482 | /* Allocate DMA memory and set up the non-embedded mailbox command */ | |
10483 | alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10484 | LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen, | |
10485 | LPFC_SLI4_MBX_NEMBED); | |
10486 | ||
10487 | if (alloclen < reqlen) { | |
10488 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10489 | "0285 Allocated DMA memory size (%d) is " | |
10490 | "less than the requested DMA memory " | |
10491 | "size (%d)\n", alloclen, reqlen); | |
10492 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10493 | return -ENOMEM; | |
10494 | } | |
10495 | ||
10496 | /* Get the first SGE entry from the non-embedded DMA memory */ | |
10497 | if (unlikely(!mbox->sge_array)) { | |
10498 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
10499 | "2525 Failed to get the non-embedded SGE " | |
10500 | "virtual address\n"); | |
10501 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10502 | return -ENOMEM; | |
10503 | } | |
10504 | viraddr = mbox->sge_array->addr[0]; | |
10505 | ||
10506 | /* Set up the SGL pages in the non-embedded DMA pages */ | |
10507 | sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr; | |
10508 | sgl_pg_pairs = &sgl->sgl_pg_pairs; | |
10509 | ||
10510 | for (pg_pairs = 0; pg_pairs < els_xri_cnt; pg_pairs++) { | |
10511 | sglq_entry = phba->sli4_hba.lpfc_els_sgl_array[pg_pairs]; | |
10512 | /* Set up the sge entry */ | |
10513 | sgl_pg_pairs->sgl_pg0_addr_lo = | |
10514 | cpu_to_le32(putPaddrLow(sglq_entry->phys)); | |
10515 | sgl_pg_pairs->sgl_pg0_addr_hi = | |
10516 | cpu_to_le32(putPaddrHigh(sglq_entry->phys)); | |
10517 | sgl_pg_pairs->sgl_pg1_addr_lo = | |
10518 | cpu_to_le32(putPaddrLow(0)); | |
10519 | sgl_pg_pairs->sgl_pg1_addr_hi = | |
10520 | cpu_to_le32(putPaddrHigh(0)); | |
10521 | /* Keep the first xritag on the list */ | |
10522 | if (pg_pairs == 0) | |
10523 | xritag_start = sglq_entry->sli4_xritag; | |
10524 | sgl_pg_pairs++; | |
10525 | } | |
10526 | bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start); | |
10527 | pg_pairs = (pg_pairs > 0) ? (pg_pairs - 1) : pg_pairs; | |
10528 | bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs); | |
10529 | /* Perform endian conversion if necessary */ | |
10530 | sgl->word0 = cpu_to_le32(sgl->word0); | |
10531 | ||
10532 | if (!phba->sli4_hba.intr_enable) | |
10533 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10534 | else { | |
10535 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); | |
10536 | rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); | |
10537 | } | |
10538 | shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr; | |
10539 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10540 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10541 | if (rc != MBX_TIMEOUT) | |
10542 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10543 | if (shdr_status || shdr_add_status || rc) { | |
10544 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10545 | "2513 POST_SGL_BLOCK mailbox command failed " | |
10546 | "status x%x add_status x%x mbx status x%x\n", | |
10547 | shdr_status, shdr_add_status, rc); | |
10548 | rc = -ENXIO; | |
10549 | } | |
10550 | return rc; | |
10551 | } | |
10552 | ||
10553 | /** | |
10554 | * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware | |
10555 | * @phba: pointer to lpfc hba data structure. | |
10556 | * @sblist: pointer to scsi buffer list. | |
10557 | * @count: number of scsi buffers on the list. | |
10558 | * | |
10559 | * This routine is invoked to post a block of @count scsi sgl pages from a | |
10560 | * SCSI buffer list @sblist to the HBA using non-embedded mailbox command. | |
10561 | * No Lock is held. | |
10562 | * | |
10563 | **/ | |
10564 | int | |
10565 | lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba, struct list_head *sblist, | |
10566 | int cnt) | |
10567 | { | |
10568 | struct lpfc_scsi_buf *psb; | |
10569 | struct lpfc_mbx_post_uembed_sgl_page1 *sgl; | |
10570 | struct sgl_page_pairs *sgl_pg_pairs; | |
10571 | void *viraddr; | |
10572 | LPFC_MBOXQ_t *mbox; | |
10573 | uint32_t reqlen, alloclen, pg_pairs; | |
10574 | uint32_t mbox_tmo; | |
10575 | uint16_t xritag_start = 0; | |
10576 | int rc = 0; | |
10577 | uint32_t shdr_status, shdr_add_status; | |
10578 | dma_addr_t pdma_phys_bpl1; | |
10579 | union lpfc_sli4_cfg_shdr *shdr; | |
10580 | ||
10581 | /* Calculate the requested length of the dma memory */ | |
10582 | reqlen = cnt * sizeof(struct sgl_page_pairs) + | |
10583 | sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t); | |
10584 | if (reqlen > PAGE_SIZE) { | |
10585 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
10586 | "0217 Block sgl registration required DMA " | |
10587 | "size (%d) great than a page\n", reqlen); | |
10588 | return -ENOMEM; | |
10589 | } | |
10590 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10591 | if (!mbox) { | |
10592 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10593 | "0283 Failed to allocate mbox cmd memory\n"); | |
10594 | return -ENOMEM; | |
10595 | } | |
10596 | ||
10597 | /* Allocate DMA memory and set up the non-embedded mailbox command */ | |
10598 | alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10599 | LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen, | |
10600 | LPFC_SLI4_MBX_NEMBED); | |
10601 | ||
10602 | if (alloclen < reqlen) { | |
10603 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10604 | "2561 Allocated DMA memory size (%d) is " | |
10605 | "less than the requested DMA memory " | |
10606 | "size (%d)\n", alloclen, reqlen); | |
10607 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10608 | return -ENOMEM; | |
10609 | } | |
10610 | ||
10611 | /* Get the first SGE entry from the non-embedded DMA memory */ | |
10612 | if (unlikely(!mbox->sge_array)) { | |
10613 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
10614 | "2565 Failed to get the non-embedded SGE " | |
10615 | "virtual address\n"); | |
10616 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10617 | return -ENOMEM; | |
10618 | } | |
10619 | viraddr = mbox->sge_array->addr[0]; | |
10620 | ||
10621 | /* Set up the SGL pages in the non-embedded DMA pages */ | |
10622 | sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr; | |
10623 | sgl_pg_pairs = &sgl->sgl_pg_pairs; | |
10624 | ||
10625 | pg_pairs = 0; | |
10626 | list_for_each_entry(psb, sblist, list) { | |
10627 | /* Set up the sge entry */ | |
10628 | sgl_pg_pairs->sgl_pg0_addr_lo = | |
10629 | cpu_to_le32(putPaddrLow(psb->dma_phys_bpl)); | |
10630 | sgl_pg_pairs->sgl_pg0_addr_hi = | |
10631 | cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl)); | |
10632 | if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE) | |
10633 | pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE; | |
10634 | else | |
10635 | pdma_phys_bpl1 = 0; | |
10636 | sgl_pg_pairs->sgl_pg1_addr_lo = | |
10637 | cpu_to_le32(putPaddrLow(pdma_phys_bpl1)); | |
10638 | sgl_pg_pairs->sgl_pg1_addr_hi = | |
10639 | cpu_to_le32(putPaddrHigh(pdma_phys_bpl1)); | |
10640 | /* Keep the first xritag on the list */ | |
10641 | if (pg_pairs == 0) | |
10642 | xritag_start = psb->cur_iocbq.sli4_xritag; | |
10643 | sgl_pg_pairs++; | |
10644 | pg_pairs++; | |
10645 | } | |
10646 | bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start); | |
10647 | bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs); | |
10648 | /* Perform endian conversion if necessary */ | |
10649 | sgl->word0 = cpu_to_le32(sgl->word0); | |
10650 | ||
10651 | if (!phba->sli4_hba.intr_enable) | |
10652 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10653 | else { | |
10654 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); | |
10655 | rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); | |
10656 | } | |
10657 | shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr; | |
10658 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10659 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10660 | if (rc != MBX_TIMEOUT) | |
10661 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10662 | if (shdr_status || shdr_add_status || rc) { | |
10663 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10664 | "2564 POST_SGL_BLOCK mailbox command failed " | |
10665 | "status x%x add_status x%x mbx status x%x\n", | |
10666 | shdr_status, shdr_add_status, rc); | |
10667 | rc = -ENXIO; | |
10668 | } | |
10669 | return rc; | |
10670 | } | |
10671 | ||
10672 | /** | |
10673 | * lpfc_fc_frame_check - Check that this frame is a valid frame to handle | |
10674 | * @phba: pointer to lpfc_hba struct that the frame was received on | |
10675 | * @fc_hdr: A pointer to the FC Header data (In Big Endian Format) | |
10676 | * | |
10677 | * This function checks the fields in the @fc_hdr to see if the FC frame is a | |
10678 | * valid type of frame that the LPFC driver will handle. This function will | |
10679 | * return a zero if the frame is a valid frame or a non zero value when the | |
10680 | * frame does not pass the check. | |
10681 | **/ | |
10682 | static int | |
10683 | lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr) | |
10684 | { | |
10685 | char *rctl_names[] = FC_RCTL_NAMES_INIT; | |
10686 | char *type_names[] = FC_TYPE_NAMES_INIT; | |
10687 | struct fc_vft_header *fc_vft_hdr; | |
10688 | ||
10689 | switch (fc_hdr->fh_r_ctl) { | |
10690 | case FC_RCTL_DD_UNCAT: /* uncategorized information */ | |
10691 | case FC_RCTL_DD_SOL_DATA: /* solicited data */ | |
10692 | case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */ | |
10693 | case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */ | |
10694 | case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */ | |
10695 | case FC_RCTL_DD_DATA_DESC: /* data descriptor */ | |
10696 | case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */ | |
10697 | case FC_RCTL_DD_CMD_STATUS: /* command status */ | |
10698 | case FC_RCTL_ELS_REQ: /* extended link services request */ | |
10699 | case FC_RCTL_ELS_REP: /* extended link services reply */ | |
10700 | case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */ | |
10701 | case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */ | |
10702 | case FC_RCTL_BA_NOP: /* basic link service NOP */ | |
10703 | case FC_RCTL_BA_ABTS: /* basic link service abort */ | |
10704 | case FC_RCTL_BA_RMC: /* remove connection */ | |
10705 | case FC_RCTL_BA_ACC: /* basic accept */ | |
10706 | case FC_RCTL_BA_RJT: /* basic reject */ | |
10707 | case FC_RCTL_BA_PRMT: | |
10708 | case FC_RCTL_ACK_1: /* acknowledge_1 */ | |
10709 | case FC_RCTL_ACK_0: /* acknowledge_0 */ | |
10710 | case FC_RCTL_P_RJT: /* port reject */ | |
10711 | case FC_RCTL_F_RJT: /* fabric reject */ | |
10712 | case FC_RCTL_P_BSY: /* port busy */ | |
10713 | case FC_RCTL_F_BSY: /* fabric busy to data frame */ | |
10714 | case FC_RCTL_F_BSYL: /* fabric busy to link control frame */ | |
10715 | case FC_RCTL_LCR: /* link credit reset */ | |
10716 | case FC_RCTL_END: /* end */ | |
10717 | break; | |
10718 | case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */ | |
10719 | fc_vft_hdr = (struct fc_vft_header *)fc_hdr; | |
10720 | fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1]; | |
10721 | return lpfc_fc_frame_check(phba, fc_hdr); | |
10722 | default: | |
10723 | goto drop; | |
10724 | } | |
10725 | switch (fc_hdr->fh_type) { | |
10726 | case FC_TYPE_BLS: | |
10727 | case FC_TYPE_ELS: | |
10728 | case FC_TYPE_FCP: | |
10729 | case FC_TYPE_CT: | |
10730 | break; | |
10731 | case FC_TYPE_IP: | |
10732 | case FC_TYPE_ILS: | |
10733 | default: | |
10734 | goto drop; | |
10735 | } | |
10736 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
10737 | "2538 Received frame rctl:%s type:%s\n", | |
10738 | rctl_names[fc_hdr->fh_r_ctl], | |
10739 | type_names[fc_hdr->fh_type]); | |
10740 | return 0; | |
10741 | drop: | |
10742 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, | |
10743 | "2539 Dropped frame rctl:%s type:%s\n", | |
10744 | rctl_names[fc_hdr->fh_r_ctl], | |
10745 | type_names[fc_hdr->fh_type]); | |
10746 | return 1; | |
10747 | } | |
10748 | ||
10749 | /** | |
10750 | * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame | |
10751 | * @fc_hdr: A pointer to the FC Header data (In Big Endian Format) | |
10752 | * | |
10753 | * This function processes the FC header to retrieve the VFI from the VF | |
10754 | * header, if one exists. This function will return the VFI if one exists | |
10755 | * or 0 if no VSAN Header exists. | |
10756 | **/ | |
10757 | static uint32_t | |
10758 | lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr) | |
10759 | { | |
10760 | struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr; | |
10761 | ||
10762 | if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH) | |
10763 | return 0; | |
10764 | return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr); | |
10765 | } | |
10766 | ||
10767 | /** | |
10768 | * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to | |
10769 | * @phba: Pointer to the HBA structure to search for the vport on | |
10770 | * @fc_hdr: A pointer to the FC Header data (In Big Endian Format) | |
10771 | * @fcfi: The FC Fabric ID that the frame came from | |
10772 | * | |
10773 | * This function searches the @phba for a vport that matches the content of the | |
10774 | * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the | |
10775 | * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function | |
10776 | * returns the matching vport pointer or NULL if unable to match frame to a | |
10777 | * vport. | |
10778 | **/ | |
10779 | static struct lpfc_vport * | |
10780 | lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr, | |
10781 | uint16_t fcfi) | |
10782 | { | |
10783 | struct lpfc_vport **vports; | |
10784 | struct lpfc_vport *vport = NULL; | |
10785 | int i; | |
10786 | uint32_t did = (fc_hdr->fh_d_id[0] << 16 | | |
10787 | fc_hdr->fh_d_id[1] << 8 | | |
10788 | fc_hdr->fh_d_id[2]); | |
10789 | ||
10790 | vports = lpfc_create_vport_work_array(phba); | |
10791 | if (vports != NULL) | |
10792 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { | |
10793 | if (phba->fcf.fcfi == fcfi && | |
10794 | vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) && | |
10795 | vports[i]->fc_myDID == did) { | |
10796 | vport = vports[i]; | |
10797 | break; | |
10798 | } | |
10799 | } | |
10800 | lpfc_destroy_vport_work_array(phba, vports); | |
10801 | return vport; | |
10802 | } | |
10803 | ||
10804 | /** | |
10805 | * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences | |
10806 | * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame | |
10807 | * | |
10808 | * This function searches through the existing incomplete sequences that have | |
10809 | * been sent to this @vport. If the frame matches one of the incomplete | |
10810 | * sequences then the dbuf in the @dmabuf is added to the list of frames that | |
10811 | * make up that sequence. If no sequence is found that matches this frame then | |
10812 | * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list | |
10813 | * This function returns a pointer to the first dmabuf in the sequence list that | |
10814 | * the frame was linked to. | |
10815 | **/ | |
10816 | static struct hbq_dmabuf * | |
10817 | lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf) | |
10818 | { | |
10819 | struct fc_frame_header *new_hdr; | |
10820 | struct fc_frame_header *temp_hdr; | |
10821 | struct lpfc_dmabuf *d_buf; | |
10822 | struct lpfc_dmabuf *h_buf; | |
10823 | struct hbq_dmabuf *seq_dmabuf = NULL; | |
10824 | struct hbq_dmabuf *temp_dmabuf = NULL; | |
10825 | ||
10826 | new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt; | |
10827 | /* Use the hdr_buf to find the sequence that this frame belongs to */ | |
10828 | list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) { | |
10829 | temp_hdr = (struct fc_frame_header *)h_buf->virt; | |
10830 | if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) || | |
10831 | (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) || | |
10832 | (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3))) | |
10833 | continue; | |
10834 | /* found a pending sequence that matches this frame */ | |
10835 | seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf); | |
10836 | break; | |
10837 | } | |
10838 | if (!seq_dmabuf) { | |
10839 | /* | |
10840 | * This indicates first frame received for this sequence. | |
10841 | * Queue the buffer on the vport's rcv_buffer_list. | |
10842 | */ | |
10843 | list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list); | |
10844 | return dmabuf; | |
10845 | } | |
10846 | temp_hdr = seq_dmabuf->hbuf.virt; | |
10847 | if (new_hdr->fh_seq_cnt < temp_hdr->fh_seq_cnt) { | |
10848 | list_add(&seq_dmabuf->dbuf.list, &dmabuf->dbuf.list); | |
10849 | return dmabuf; | |
10850 | } | |
10851 | /* find the correct place in the sequence to insert this frame */ | |
10852 | list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) { | |
10853 | temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf); | |
10854 | temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt; | |
10855 | /* | |
10856 | * If the frame's sequence count is greater than the frame on | |
10857 | * the list then insert the frame right after this frame | |
10858 | */ | |
10859 | if (new_hdr->fh_seq_cnt > temp_hdr->fh_seq_cnt) { | |
10860 | list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list); | |
10861 | return seq_dmabuf; | |
10862 | } | |
10863 | } | |
10864 | return NULL; | |
10865 | } | |
10866 | ||
10867 | /** | |
10868 | * lpfc_seq_complete - Indicates if a sequence is complete | |
10869 | * @dmabuf: pointer to a dmabuf that describes the FC sequence | |
10870 | * | |
10871 | * This function checks the sequence, starting with the frame described by | |
10872 | * @dmabuf, to see if all the frames associated with this sequence are present. | |
10873 | * the frames associated with this sequence are linked to the @dmabuf using the | |
10874 | * dbuf list. This function looks for two major things. 1) That the first frame | |
10875 | * has a sequence count of zero. 2) There is a frame with last frame of sequence | |
10876 | * set. 3) That there are no holes in the sequence count. The function will | |
10877 | * return 1 when the sequence is complete, otherwise it will return 0. | |
10878 | **/ | |
10879 | static int | |
10880 | lpfc_seq_complete(struct hbq_dmabuf *dmabuf) | |
10881 | { | |
10882 | struct fc_frame_header *hdr; | |
10883 | struct lpfc_dmabuf *d_buf; | |
10884 | struct hbq_dmabuf *seq_dmabuf; | |
10885 | uint32_t fctl; | |
10886 | int seq_count = 0; | |
10887 | ||
10888 | hdr = (struct fc_frame_header *)dmabuf->hbuf.virt; | |
10889 | /* make sure first fame of sequence has a sequence count of zero */ | |
10890 | if (hdr->fh_seq_cnt != seq_count) | |
10891 | return 0; | |
10892 | fctl = (hdr->fh_f_ctl[0] << 16 | | |
10893 | hdr->fh_f_ctl[1] << 8 | | |
10894 | hdr->fh_f_ctl[2]); | |
10895 | /* If last frame of sequence we can return success. */ | |
10896 | if (fctl & FC_FC_END_SEQ) | |
10897 | return 1; | |
10898 | list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) { | |
10899 | seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf); | |
10900 | hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt; | |
10901 | /* If there is a hole in the sequence count then fail. */ | |
10902 | if (++seq_count != hdr->fh_seq_cnt) | |
10903 | return 0; | |
10904 | fctl = (hdr->fh_f_ctl[0] << 16 | | |
10905 | hdr->fh_f_ctl[1] << 8 | | |
10906 | hdr->fh_f_ctl[2]); | |
10907 | /* If last frame of sequence we can return success. */ | |
10908 | if (fctl & FC_FC_END_SEQ) | |
10909 | return 1; | |
10910 | } | |
10911 | return 0; | |
10912 | } | |
10913 | ||
10914 | /** | |
10915 | * lpfc_prep_seq - Prep sequence for ULP processing | |
10916 | * @vport: Pointer to the vport on which this sequence was received | |
10917 | * @dmabuf: pointer to a dmabuf that describes the FC sequence | |
10918 | * | |
10919 | * This function takes a sequence, described by a list of frames, and creates | |
10920 | * a list of iocbq structures to describe the sequence. This iocbq list will be | |
10921 | * used to issue to the generic unsolicited sequence handler. This routine | |
10922 | * returns a pointer to the first iocbq in the list. If the function is unable | |
10923 | * to allocate an iocbq then it throw out the received frames that were not | |
10924 | * able to be described and return a pointer to the first iocbq. If unable to | |
10925 | * allocate any iocbqs (including the first) this function will return NULL. | |
10926 | **/ | |
10927 | static struct lpfc_iocbq * | |
10928 | lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf) | |
10929 | { | |
10930 | struct lpfc_dmabuf *d_buf, *n_buf; | |
10931 | struct lpfc_iocbq *first_iocbq, *iocbq; | |
10932 | struct fc_frame_header *fc_hdr; | |
10933 | uint32_t sid; | |
10934 | ||
10935 | fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt; | |
10936 | /* remove from receive buffer list */ | |
10937 | list_del_init(&seq_dmabuf->hbuf.list); | |
10938 | /* get the Remote Port's SID */ | |
10939 | sid = (fc_hdr->fh_s_id[0] << 16 | | |
10940 | fc_hdr->fh_s_id[1] << 8 | | |
10941 | fc_hdr->fh_s_id[2]); | |
10942 | /* Get an iocbq struct to fill in. */ | |
10943 | first_iocbq = lpfc_sli_get_iocbq(vport->phba); | |
10944 | if (first_iocbq) { | |
10945 | /* Initialize the first IOCB. */ | |
10946 | first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0; | |
10947 | first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS; | |
10948 | first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX; | |
10949 | first_iocbq->iocb.ulpContext = be16_to_cpu(fc_hdr->fh_ox_id); | |
10950 | first_iocbq->iocb.unsli3.rcvsli3.vpi = | |
10951 | vport->vpi + vport->phba->vpi_base; | |
10952 | /* put the first buffer into the first IOCBq */ | |
10953 | first_iocbq->context2 = &seq_dmabuf->dbuf; | |
10954 | first_iocbq->context3 = NULL; | |
10955 | first_iocbq->iocb.ulpBdeCount = 1; | |
10956 | first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = | |
10957 | LPFC_DATA_BUF_SIZE; | |
10958 | first_iocbq->iocb.un.rcvels.remoteID = sid; | |
10959 | first_iocbq->iocb.unsli3.rcvsli3.acc_len += | |
10960 | bf_get(lpfc_rcqe_length, &seq_dmabuf->rcqe); | |
10961 | } | |
10962 | iocbq = first_iocbq; | |
10963 | /* | |
10964 | * Each IOCBq can have two Buffers assigned, so go through the list | |
10965 | * of buffers for this sequence and save two buffers in each IOCBq | |
10966 | */ | |
10967 | list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) { | |
10968 | if (!iocbq) { | |
10969 | lpfc_in_buf_free(vport->phba, d_buf); | |
10970 | continue; | |
10971 | } | |
10972 | if (!iocbq->context3) { | |
10973 | iocbq->context3 = d_buf; | |
10974 | iocbq->iocb.ulpBdeCount++; | |
10975 | iocbq->iocb.unsli3.rcvsli3.bde2.tus.f.bdeSize = | |
10976 | LPFC_DATA_BUF_SIZE; | |
10977 | first_iocbq->iocb.unsli3.rcvsli3.acc_len += | |
10978 | bf_get(lpfc_rcqe_length, &seq_dmabuf->rcqe); | |
10979 | } else { | |
10980 | iocbq = lpfc_sli_get_iocbq(vport->phba); | |
10981 | if (!iocbq) { | |
10982 | if (first_iocbq) { | |
10983 | first_iocbq->iocb.ulpStatus = | |
10984 | IOSTAT_FCP_RSP_ERROR; | |
10985 | first_iocbq->iocb.un.ulpWord[4] = | |
10986 | IOERR_NO_RESOURCES; | |
10987 | } | |
10988 | lpfc_in_buf_free(vport->phba, d_buf); | |
10989 | continue; | |
10990 | } | |
10991 | iocbq->context2 = d_buf; | |
10992 | iocbq->context3 = NULL; | |
10993 | iocbq->iocb.ulpBdeCount = 1; | |
10994 | iocbq->iocb.un.cont64[0].tus.f.bdeSize = | |
10995 | LPFC_DATA_BUF_SIZE; | |
10996 | first_iocbq->iocb.unsli3.rcvsli3.acc_len += | |
10997 | bf_get(lpfc_rcqe_length, &seq_dmabuf->rcqe); | |
10998 | iocbq->iocb.un.rcvels.remoteID = sid; | |
10999 | list_add_tail(&iocbq->list, &first_iocbq->list); | |
11000 | } | |
11001 | } | |
11002 | return first_iocbq; | |
11003 | } | |
11004 | ||
11005 | /** | |
11006 | * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware | |
11007 | * @phba: Pointer to HBA context object. | |
11008 | * | |
11009 | * This function is called with no lock held. This function processes all | |
11010 | * the received buffers and gives it to upper layers when a received buffer | |
11011 | * indicates that it is the final frame in the sequence. The interrupt | |
11012 | * service routine processes received buffers at interrupt contexts and adds | |
11013 | * received dma buffers to the rb_pend_list queue and signals the worker thread. | |
11014 | * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the | |
11015 | * appropriate receive function when the final frame in a sequence is received. | |
11016 | **/ | |
11017 | int | |
11018 | lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba) | |
11019 | { | |
11020 | LIST_HEAD(cmplq); | |
11021 | struct hbq_dmabuf *dmabuf, *seq_dmabuf; | |
11022 | struct fc_frame_header *fc_hdr; | |
11023 | struct lpfc_vport *vport; | |
11024 | uint32_t fcfi; | |
11025 | struct lpfc_iocbq *iocbq; | |
11026 | ||
11027 | /* Clear hba flag and get all received buffers into the cmplq */ | |
11028 | spin_lock_irq(&phba->hbalock); | |
11029 | phba->hba_flag &= ~HBA_RECEIVE_BUFFER; | |
11030 | list_splice_init(&phba->rb_pend_list, &cmplq); | |
11031 | spin_unlock_irq(&phba->hbalock); | |
11032 | ||
11033 | /* Process each received buffer */ | |
11034 | while ((dmabuf = lpfc_sli_hbqbuf_get(&cmplq)) != NULL) { | |
11035 | fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt; | |
11036 | /* check to see if this a valid type of frame */ | |
11037 | if (lpfc_fc_frame_check(phba, fc_hdr)) { | |
11038 | lpfc_in_buf_free(phba, &dmabuf->dbuf); | |
11039 | continue; | |
11040 | } | |
11041 | fcfi = bf_get(lpfc_rcqe_fcf_id, &dmabuf->rcqe); | |
11042 | vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi); | |
11043 | if (!vport) { | |
11044 | /* throw out the frame */ | |
11045 | lpfc_in_buf_free(phba, &dmabuf->dbuf); | |
11046 | continue; | |
11047 | } | |
11048 | /* Link this frame */ | |
11049 | seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf); | |
11050 | if (!seq_dmabuf) { | |
11051 | /* unable to add frame to vport - throw it out */ | |
11052 | lpfc_in_buf_free(phba, &dmabuf->dbuf); | |
11053 | continue; | |
11054 | } | |
11055 | /* If not last frame in sequence continue processing frames. */ | |
11056 | if (!lpfc_seq_complete(seq_dmabuf)) { | |
11057 | /* | |
11058 | * When saving off frames post a new one and mark this | |
11059 | * frame to be freed when it is finished. | |
11060 | **/ | |
11061 | lpfc_sli_hbqbuf_fill_hbqs(phba, LPFC_ELS_HBQ, 1); | |
11062 | dmabuf->tag = -1; | |
11063 | continue; | |
11064 | } | |
11065 | fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt; | |
11066 | iocbq = lpfc_prep_seq(vport, seq_dmabuf); | |
11067 | if (!lpfc_complete_unsol_iocb(phba, | |
11068 | &phba->sli.ring[LPFC_ELS_RING], | |
11069 | iocbq, fc_hdr->fh_r_ctl, | |
11070 | fc_hdr->fh_type)) | |
11071 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
11072 | "2540 Ring %d handler: unexpected Rctl " | |
11073 | "x%x Type x%x received\n", | |
11074 | LPFC_ELS_RING, | |
11075 | fc_hdr->fh_r_ctl, fc_hdr->fh_type); | |
11076 | }; | |
11077 | return 0; | |
11078 | } | |
11079 | ||
11080 | /** | |
11081 | * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port | |
11082 | * @phba: pointer to lpfc hba data structure. | |
11083 | * | |
11084 | * This routine is invoked to post rpi header templates to the | |
11085 | * HBA consistent with the SLI-4 interface spec. This routine | |
11086 | * posts a PAGE_SIZE memory region to the port to hold up to | |
11087 | * PAGE_SIZE modulo 64 rpi context headers. | |
11088 | * | |
11089 | * This routine does not require any locks. It's usage is expected | |
11090 | * to be driver load or reset recovery when the driver is | |
11091 | * sequential. | |
11092 | * | |
11093 | * Return codes | |
11094 | * 0 - sucessful | |
11095 | * EIO - The mailbox failed to complete successfully. | |
11096 | * When this error occurs, the driver is not guaranteed | |
11097 | * to have any rpi regions posted to the device and | |
11098 | * must either attempt to repost the regions or take a | |
11099 | * fatal error. | |
11100 | **/ | |
11101 | int | |
11102 | lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba) | |
11103 | { | |
11104 | struct lpfc_rpi_hdr *rpi_page; | |
11105 | uint32_t rc = 0; | |
11106 | ||
11107 | /* Post all rpi memory regions to the port. */ | |
11108 | list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) { | |
11109 | rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page); | |
11110 | if (rc != MBX_SUCCESS) { | |
11111 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11112 | "2008 Error %d posting all rpi " | |
11113 | "headers\n", rc); | |
11114 | rc = -EIO; | |
11115 | break; | |
11116 | } | |
11117 | } | |
11118 | ||
11119 | return rc; | |
11120 | } | |
11121 | ||
11122 | /** | |
11123 | * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port | |
11124 | * @phba: pointer to lpfc hba data structure. | |
11125 | * @rpi_page: pointer to the rpi memory region. | |
11126 | * | |
11127 | * This routine is invoked to post a single rpi header to the | |
11128 | * HBA consistent with the SLI-4 interface spec. This memory region | |
11129 | * maps up to 64 rpi context regions. | |
11130 | * | |
11131 | * Return codes | |
11132 | * 0 - sucessful | |
11133 | * ENOMEM - No available memory | |
11134 | * EIO - The mailbox failed to complete successfully. | |
11135 | **/ | |
11136 | int | |
11137 | lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page) | |
11138 | { | |
11139 | LPFC_MBOXQ_t *mboxq; | |
11140 | struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl; | |
11141 | uint32_t rc = 0; | |
11142 | uint32_t mbox_tmo; | |
11143 | uint32_t shdr_status, shdr_add_status; | |
11144 | union lpfc_sli4_cfg_shdr *shdr; | |
11145 | ||
11146 | /* The port is notified of the header region via a mailbox command. */ | |
11147 | mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
11148 | if (!mboxq) { | |
11149 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11150 | "2001 Unable to allocate memory for issuing " | |
11151 | "SLI_CONFIG_SPECIAL mailbox command\n"); | |
11152 | return -ENOMEM; | |
11153 | } | |
11154 | ||
11155 | /* Post all rpi memory regions to the port. */ | |
11156 | hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl; | |
11157 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); | |
11158 | lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
11159 | LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE, | |
11160 | sizeof(struct lpfc_mbx_post_hdr_tmpl) - | |
11161 | sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED); | |
11162 | bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt, | |
11163 | hdr_tmpl, rpi_page->page_count); | |
11164 | bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl, | |
11165 | rpi_page->start_rpi); | |
11166 | hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys); | |
11167 | hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys); | |
11168 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
11169 | shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr; | |
11170 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
11171 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
11172 | if (rc != MBX_TIMEOUT) | |
11173 | mempool_free(mboxq, phba->mbox_mem_pool); | |
11174 | if (shdr_status || shdr_add_status || rc) { | |
11175 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11176 | "2514 POST_RPI_HDR mailbox failed with " | |
11177 | "status x%x add_status x%x, mbx status x%x\n", | |
11178 | shdr_status, shdr_add_status, rc); | |
11179 | rc = -ENXIO; | |
11180 | } | |
11181 | return rc; | |
11182 | } | |
11183 | ||
11184 | /** | |
11185 | * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range | |
11186 | * @phba: pointer to lpfc hba data structure. | |
11187 | * | |
11188 | * This routine is invoked to post rpi header templates to the | |
11189 | * HBA consistent with the SLI-4 interface spec. This routine | |
11190 | * posts a PAGE_SIZE memory region to the port to hold up to | |
11191 | * PAGE_SIZE modulo 64 rpi context headers. | |
11192 | * | |
11193 | * Returns | |
11194 | * A nonzero rpi defined as rpi_base <= rpi < max_rpi if sucessful | |
11195 | * LPFC_RPI_ALLOC_ERROR if no rpis are available. | |
11196 | **/ | |
11197 | int | |
11198 | lpfc_sli4_alloc_rpi(struct lpfc_hba *phba) | |
11199 | { | |
11200 | int rpi; | |
11201 | uint16_t max_rpi, rpi_base, rpi_limit; | |
11202 | uint16_t rpi_remaining; | |
11203 | struct lpfc_rpi_hdr *rpi_hdr; | |
11204 | ||
11205 | max_rpi = phba->sli4_hba.max_cfg_param.max_rpi; | |
11206 | rpi_base = phba->sli4_hba.max_cfg_param.rpi_base; | |
11207 | rpi_limit = phba->sli4_hba.next_rpi; | |
11208 | ||
11209 | /* | |
11210 | * The valid rpi range is not guaranteed to be zero-based. Start | |
11211 | * the search at the rpi_base as reported by the port. | |
11212 | */ | |
11213 | spin_lock_irq(&phba->hbalock); | |
11214 | rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, rpi_base); | |
11215 | if (rpi >= rpi_limit || rpi < rpi_base) | |
11216 | rpi = LPFC_RPI_ALLOC_ERROR; | |
11217 | else { | |
11218 | set_bit(rpi, phba->sli4_hba.rpi_bmask); | |
11219 | phba->sli4_hba.max_cfg_param.rpi_used++; | |
11220 | phba->sli4_hba.rpi_count++; | |
11221 | } | |
11222 | ||
11223 | /* | |
11224 | * Don't try to allocate more rpi header regions if the device limit | |
11225 | * on available rpis max has been exhausted. | |
11226 | */ | |
11227 | if ((rpi == LPFC_RPI_ALLOC_ERROR) && | |
11228 | (phba->sli4_hba.rpi_count >= max_rpi)) { | |
11229 | spin_unlock_irq(&phba->hbalock); | |
11230 | return rpi; | |
11231 | } | |
11232 | ||
11233 | /* | |
11234 | * If the driver is running low on rpi resources, allocate another | |
11235 | * page now. Note that the next_rpi value is used because | |
11236 | * it represents how many are actually in use whereas max_rpi notes | |
11237 | * how many are supported max by the device. | |
11238 | */ | |
11239 | rpi_remaining = phba->sli4_hba.next_rpi - rpi_base - | |
11240 | phba->sli4_hba.rpi_count; | |
11241 | spin_unlock_irq(&phba->hbalock); | |
11242 | if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) { | |
11243 | rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); | |
11244 | if (!rpi_hdr) { | |
11245 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11246 | "2002 Error Could not grow rpi " | |
11247 | "count\n"); | |
11248 | } else { | |
11249 | lpfc_sli4_post_rpi_hdr(phba, rpi_hdr); | |
11250 | } | |
11251 | } | |
11252 | ||
11253 | return rpi; | |
11254 | } | |
11255 | ||
11256 | /** | |
11257 | * lpfc_sli4_free_rpi - Release an rpi for reuse. | |
11258 | * @phba: pointer to lpfc hba data structure. | |
11259 | * | |
11260 | * This routine is invoked to release an rpi to the pool of | |
11261 | * available rpis maintained by the driver. | |
11262 | **/ | |
11263 | void | |
11264 | lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi) | |
11265 | { | |
11266 | spin_lock_irq(&phba->hbalock); | |
11267 | clear_bit(rpi, phba->sli4_hba.rpi_bmask); | |
11268 | phba->sli4_hba.rpi_count--; | |
11269 | phba->sli4_hba.max_cfg_param.rpi_used--; | |
11270 | spin_unlock_irq(&phba->hbalock); | |
11271 | } | |
11272 | ||
11273 | /** | |
11274 | * lpfc_sli4_remove_rpis - Remove the rpi bitmask region | |
11275 | * @phba: pointer to lpfc hba data structure. | |
11276 | * | |
11277 | * This routine is invoked to remove the memory region that | |
11278 | * provided rpi via a bitmask. | |
11279 | **/ | |
11280 | void | |
11281 | lpfc_sli4_remove_rpis(struct lpfc_hba *phba) | |
11282 | { | |
11283 | kfree(phba->sli4_hba.rpi_bmask); | |
11284 | } | |
11285 | ||
11286 | /** | |
11287 | * lpfc_sli4_resume_rpi - Remove the rpi bitmask region | |
11288 | * @phba: pointer to lpfc hba data structure. | |
11289 | * | |
11290 | * This routine is invoked to remove the memory region that | |
11291 | * provided rpi via a bitmask. | |
11292 | **/ | |
11293 | int | |
11294 | lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp) | |
11295 | { | |
11296 | LPFC_MBOXQ_t *mboxq; | |
11297 | struct lpfc_hba *phba = ndlp->phba; | |
11298 | int rc; | |
11299 | ||
11300 | /* The port is notified of the header region via a mailbox command. */ | |
11301 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
11302 | if (!mboxq) | |
11303 | return -ENOMEM; | |
11304 | ||
11305 | /* Post all rpi memory regions to the port. */ | |
11306 | lpfc_resume_rpi(mboxq, ndlp); | |
11307 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
11308 | if (rc == MBX_NOT_FINISHED) { | |
11309 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11310 | "2010 Resume RPI Mailbox failed " | |
11311 | "status %d, mbxStatus x%x\n", rc, | |
11312 | bf_get(lpfc_mqe_status, &mboxq->u.mqe)); | |
11313 | mempool_free(mboxq, phba->mbox_mem_pool); | |
11314 | return -EIO; | |
11315 | } | |
11316 | return 0; | |
11317 | } | |
11318 | ||
11319 | /** | |
11320 | * lpfc_sli4_init_vpi - Initialize a vpi with the port | |
11321 | * @phba: pointer to lpfc hba data structure. | |
11322 | * @vpi: vpi value to activate with the port. | |
11323 | * | |
11324 | * This routine is invoked to activate a vpi with the | |
11325 | * port when the host intends to use vports with a | |
11326 | * nonzero vpi. | |
11327 | * | |
11328 | * Returns: | |
11329 | * 0 success | |
11330 | * -Evalue otherwise | |
11331 | **/ | |
11332 | int | |
11333 | lpfc_sli4_init_vpi(struct lpfc_hba *phba, uint16_t vpi) | |
11334 | { | |
11335 | LPFC_MBOXQ_t *mboxq; | |
11336 | int rc = 0; | |
11337 | uint32_t mbox_tmo; | |
11338 | ||
11339 | if (vpi == 0) | |
11340 | return -EINVAL; | |
11341 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
11342 | if (!mboxq) | |
11343 | return -ENOMEM; | |
11344 | lpfc_init_vpi(phba, mboxq, vpi); | |
11345 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_INIT_VPI); | |
11346 | rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); | |
11347 | if (rc != MBX_TIMEOUT) | |
11348 | mempool_free(mboxq, phba->mbox_mem_pool); | |
11349 | if (rc != MBX_SUCCESS) { | |
11350 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11351 | "2022 INIT VPI Mailbox failed " | |
11352 | "status %d, mbxStatus x%x\n", rc, | |
11353 | bf_get(lpfc_mqe_status, &mboxq->u.mqe)); | |
11354 | rc = -EIO; | |
11355 | } | |
11356 | return rc; | |
11357 | } | |
11358 | ||
11359 | /** | |
11360 | * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler. | |
11361 | * @phba: pointer to lpfc hba data structure. | |
11362 | * @mboxq: Pointer to mailbox object. | |
11363 | * | |
11364 | * This routine is invoked to manually add a single FCF record. The caller | |
11365 | * must pass a completely initialized FCF_Record. This routine takes | |
11366 | * care of the nonembedded mailbox operations. | |
11367 | **/ | |
11368 | static void | |
11369 | lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) | |
11370 | { | |
11371 | void *virt_addr; | |
11372 | union lpfc_sli4_cfg_shdr *shdr; | |
11373 | uint32_t shdr_status, shdr_add_status; | |
11374 | ||
11375 | virt_addr = mboxq->sge_array->addr[0]; | |
11376 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
11377 | shdr = (union lpfc_sli4_cfg_shdr *) virt_addr; | |
11378 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
11379 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
11380 | ||
11381 | if ((shdr_status || shdr_add_status) && | |
11382 | (shdr_status != STATUS_FCF_IN_USE)) | |
11383 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11384 | "2558 ADD_FCF_RECORD mailbox failed with " | |
11385 | "status x%x add_status x%x\n", | |
11386 | shdr_status, shdr_add_status); | |
11387 | ||
11388 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
11389 | } | |
11390 | ||
11391 | /** | |
11392 | * lpfc_sli4_add_fcf_record - Manually add an FCF Record. | |
11393 | * @phba: pointer to lpfc hba data structure. | |
11394 | * @fcf_record: pointer to the initialized fcf record to add. | |
11395 | * | |
11396 | * This routine is invoked to manually add a single FCF record. The caller | |
11397 | * must pass a completely initialized FCF_Record. This routine takes | |
11398 | * care of the nonembedded mailbox operations. | |
11399 | **/ | |
11400 | int | |
11401 | lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record) | |
11402 | { | |
11403 | int rc = 0; | |
11404 | LPFC_MBOXQ_t *mboxq; | |
11405 | uint8_t *bytep; | |
11406 | void *virt_addr; | |
11407 | dma_addr_t phys_addr; | |
11408 | struct lpfc_mbx_sge sge; | |
11409 | uint32_t alloc_len, req_len; | |
11410 | uint32_t fcfindex; | |
11411 | ||
11412 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
11413 | if (!mboxq) { | |
11414 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11415 | "2009 Failed to allocate mbox for ADD_FCF cmd\n"); | |
11416 | return -ENOMEM; | |
11417 | } | |
11418 | ||
11419 | req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) + | |
11420 | sizeof(uint32_t); | |
11421 | ||
11422 | /* Allocate DMA memory and set up the non-embedded mailbox command */ | |
11423 | alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
11424 | LPFC_MBOX_OPCODE_FCOE_ADD_FCF, | |
11425 | req_len, LPFC_SLI4_MBX_NEMBED); | |
11426 | if (alloc_len < req_len) { | |
11427 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11428 | "2523 Allocated DMA memory size (x%x) is " | |
11429 | "less than the requested DMA memory " | |
11430 | "size (x%x)\n", alloc_len, req_len); | |
11431 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
11432 | return -ENOMEM; | |
11433 | } | |
11434 | ||
11435 | /* | |
11436 | * Get the first SGE entry from the non-embedded DMA memory. This | |
11437 | * routine only uses a single SGE. | |
11438 | */ | |
11439 | lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); | |
11440 | phys_addr = getPaddr(sge.pa_hi, sge.pa_lo); | |
11441 | if (unlikely(!mboxq->sge_array)) { | |
11442 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
11443 | "2526 Failed to get the non-embedded SGE " | |
11444 | "virtual address\n"); | |
11445 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
11446 | return -ENOMEM; | |
11447 | } | |
11448 | virt_addr = mboxq->sge_array->addr[0]; | |
11449 | /* | |
11450 | * Configure the FCF record for FCFI 0. This is the driver's | |
11451 | * hardcoded default and gets used in nonFIP mode. | |
11452 | */ | |
11453 | fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record); | |
11454 | bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr); | |
11455 | lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t)); | |
11456 | ||
11457 | /* | |
11458 | * Copy the fcf_index and the FCF Record Data. The data starts after | |
11459 | * the FCoE header plus word10. The data copy needs to be endian | |
11460 | * correct. | |
11461 | */ | |
11462 | bytep += sizeof(uint32_t); | |
11463 | lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record)); | |
11464 | mboxq->vport = phba->pport; | |
11465 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record; | |
11466 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
11467 | if (rc == MBX_NOT_FINISHED) { | |
11468 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11469 | "2515 ADD_FCF_RECORD mailbox failed with " | |
11470 | "status 0x%x\n", rc); | |
11471 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
11472 | rc = -EIO; | |
11473 | } else | |
11474 | rc = 0; | |
11475 | ||
11476 | return rc; | |
11477 | } | |
11478 | ||
11479 | /** | |
11480 | * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record. | |
11481 | * @phba: pointer to lpfc hba data structure. | |
11482 | * @fcf_record: pointer to the fcf record to write the default data. | |
11483 | * @fcf_index: FCF table entry index. | |
11484 | * | |
11485 | * This routine is invoked to build the driver's default FCF record. The | |
11486 | * values used are hardcoded. This routine handles memory initialization. | |
11487 | * | |
11488 | **/ | |
11489 | void | |
11490 | lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba, | |
11491 | struct fcf_record *fcf_record, | |
11492 | uint16_t fcf_index) | |
11493 | { | |
11494 | memset(fcf_record, 0, sizeof(struct fcf_record)); | |
11495 | fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE; | |
11496 | fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER; | |
11497 | fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY; | |
11498 | bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]); | |
11499 | bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]); | |
11500 | bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]); | |
11501 | bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3); | |
11502 | bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4); | |
11503 | bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5); | |
11504 | bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]); | |
11505 | bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]); | |
11506 | bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]); | |
11507 | bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1); | |
11508 | bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1); | |
11509 | bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index); | |
11510 | bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record, | |
11511 | LPFC_FCF_FPMA | LPFC_FCF_SPMA); | |
11512 | /* Set the VLAN bit map */ | |
11513 | if (phba->valid_vlan) { | |
11514 | fcf_record->vlan_bitmap[phba->vlan_id / 8] | |
11515 | = 1 << (phba->vlan_id % 8); | |
11516 | } | |
11517 | } | |
11518 | ||
11519 | /** | |
11520 | * lpfc_sli4_read_fcf_record - Read the driver's default FCF Record. | |
11521 | * @phba: pointer to lpfc hba data structure. | |
11522 | * @fcf_index: FCF table entry offset. | |
11523 | * | |
11524 | * This routine is invoked to read up to @fcf_num of FCF record from the | |
11525 | * device starting with the given @fcf_index. | |
11526 | **/ | |
11527 | int | |
11528 | lpfc_sli4_read_fcf_record(struct lpfc_hba *phba, uint16_t fcf_index) | |
11529 | { | |
11530 | int rc = 0, error; | |
11531 | LPFC_MBOXQ_t *mboxq; | |
11532 | void *virt_addr; | |
11533 | dma_addr_t phys_addr; | |
11534 | uint8_t *bytep; | |
11535 | struct lpfc_mbx_sge sge; | |
11536 | uint32_t alloc_len, req_len; | |
11537 | struct lpfc_mbx_read_fcf_tbl *read_fcf; | |
11538 | ||
11539 | phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag; | |
11540 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
11541 | if (!mboxq) { | |
11542 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11543 | "2000 Failed to allocate mbox for " | |
11544 | "READ_FCF cmd\n"); | |
11545 | return -ENOMEM; | |
11546 | } | |
11547 | ||
11548 | req_len = sizeof(struct fcf_record) + | |
11549 | sizeof(union lpfc_sli4_cfg_shdr) + 2 * sizeof(uint32_t); | |
11550 | ||
11551 | /* Set up READ_FCF SLI4_CONFIG mailbox-ioctl command */ | |
11552 | alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
11553 | LPFC_MBOX_OPCODE_FCOE_READ_FCF_TABLE, req_len, | |
11554 | LPFC_SLI4_MBX_NEMBED); | |
11555 | ||
11556 | if (alloc_len < req_len) { | |
11557 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11558 | "0291 Allocated DMA memory size (x%x) is " | |
11559 | "less than the requested DMA memory " | |
11560 | "size (x%x)\n", alloc_len, req_len); | |
11561 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
11562 | return -ENOMEM; | |
11563 | } | |
11564 | ||
11565 | /* Get the first SGE entry from the non-embedded DMA memory. This | |
11566 | * routine only uses a single SGE. | |
11567 | */ | |
11568 | lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); | |
11569 | phys_addr = getPaddr(sge.pa_hi, sge.pa_lo); | |
11570 | if (unlikely(!mboxq->sge_array)) { | |
11571 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
11572 | "2527 Failed to get the non-embedded SGE " | |
11573 | "virtual address\n"); | |
11574 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
11575 | return -ENOMEM; | |
11576 | } | |
11577 | virt_addr = mboxq->sge_array->addr[0]; | |
11578 | read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; | |
11579 | ||
11580 | /* Set up command fields */ | |
11581 | bf_set(lpfc_mbx_read_fcf_tbl_indx, &read_fcf->u.request, fcf_index); | |
11582 | /* Perform necessary endian conversion */ | |
11583 | bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr); | |
11584 | lpfc_sli_pcimem_bcopy(bytep, bytep, sizeof(uint32_t)); | |
11585 | mboxq->vport = phba->pport; | |
11586 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_record; | |
11587 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
11588 | if (rc == MBX_NOT_FINISHED) { | |
11589 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
11590 | error = -EIO; | |
11591 | } else { | |
11592 | spin_lock_irq(&phba->hbalock); | |
11593 | phba->hba_flag |= FCF_DISC_INPROGRESS; | |
11594 | spin_unlock_irq(&phba->hbalock); | |
11595 | error = 0; | |
11596 | } | |
11597 | return error; | |
11598 | } | |
11599 | ||
11600 | /** | |
11601 | * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled. | |
11602 | * @phba: pointer to lpfc hba data structure. | |
11603 | * | |
11604 | * This function read region 23 and parse TLV for port status to | |
11605 | * decide if the user disaled the port. If the TLV indicates the | |
11606 | * port is disabled, the hba_flag is set accordingly. | |
11607 | **/ | |
11608 | void | |
11609 | lpfc_sli_read_link_ste(struct lpfc_hba *phba) | |
11610 | { | |
11611 | LPFC_MBOXQ_t *pmb = NULL; | |
11612 | MAILBOX_t *mb; | |
11613 | uint8_t *rgn23_data = NULL; | |
11614 | uint32_t offset = 0, data_size, sub_tlv_len, tlv_offset; | |
11615 | int rc; | |
11616 | ||
11617 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
11618 | if (!pmb) { | |
11619 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11620 | "2600 lpfc_sli_read_serdes_param failed to" | |
11621 | " allocate mailbox memory\n"); | |
11622 | goto out; | |
11623 | } | |
11624 | mb = &pmb->u.mb; | |
11625 | ||
11626 | /* Get adapter Region 23 data */ | |
11627 | rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL); | |
11628 | if (!rgn23_data) | |
11629 | goto out; | |
11630 | ||
11631 | do { | |
11632 | lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23); | |
11633 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
11634 | ||
11635 | if (rc != MBX_SUCCESS) { | |
11636 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
11637 | "2601 lpfc_sli_read_link_ste failed to" | |
11638 | " read config region 23 rc 0x%x Status 0x%x\n", | |
11639 | rc, mb->mbxStatus); | |
11640 | mb->un.varDmp.word_cnt = 0; | |
11641 | } | |
11642 | /* | |
11643 | * dump mem may return a zero when finished or we got a | |
11644 | * mailbox error, either way we are done. | |
11645 | */ | |
11646 | if (mb->un.varDmp.word_cnt == 0) | |
11647 | break; | |
11648 | if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset) | |
11649 | mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset; | |
11650 | ||
11651 | lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, | |
11652 | rgn23_data + offset, | |
11653 | mb->un.varDmp.word_cnt); | |
11654 | offset += mb->un.varDmp.word_cnt; | |
11655 | } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE); | |
11656 | ||
11657 | data_size = offset; | |
11658 | offset = 0; | |
11659 | ||
11660 | if (!data_size) | |
11661 | goto out; | |
11662 | ||
11663 | /* Check the region signature first */ | |
11664 | if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) { | |
11665 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11666 | "2619 Config region 23 has bad signature\n"); | |
11667 | goto out; | |
11668 | } | |
11669 | offset += 4; | |
11670 | ||
11671 | /* Check the data structure version */ | |
11672 | if (rgn23_data[offset] != LPFC_REGION23_VERSION) { | |
11673 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11674 | "2620 Config region 23 has bad version\n"); | |
11675 | goto out; | |
11676 | } | |
11677 | offset += 4; | |
11678 | ||
11679 | /* Parse TLV entries in the region */ | |
11680 | while (offset < data_size) { | |
11681 | if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) | |
11682 | break; | |
11683 | /* | |
11684 | * If the TLV is not driver specific TLV or driver id is | |
11685 | * not linux driver id, skip the record. | |
11686 | */ | |
11687 | if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) || | |
11688 | (rgn23_data[offset + 2] != LINUX_DRIVER_ID) || | |
11689 | (rgn23_data[offset + 3] != 0)) { | |
11690 | offset += rgn23_data[offset + 1] * 4 + 4; | |
11691 | continue; | |
11692 | } | |
11693 | ||
11694 | /* Driver found a driver specific TLV in the config region */ | |
11695 | sub_tlv_len = rgn23_data[offset + 1] * 4; | |
11696 | offset += 4; | |
11697 | tlv_offset = 0; | |
11698 | ||
11699 | /* | |
11700 | * Search for configured port state sub-TLV. | |
11701 | */ | |
11702 | while ((offset < data_size) && | |
11703 | (tlv_offset < sub_tlv_len)) { | |
11704 | if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) { | |
11705 | offset += 4; | |
11706 | tlv_offset += 4; | |
11707 | break; | |
11708 | } | |
11709 | if (rgn23_data[offset] != PORT_STE_TYPE) { | |
11710 | offset += rgn23_data[offset + 1] * 4 + 4; | |
11711 | tlv_offset += rgn23_data[offset + 1] * 4 + 4; | |
11712 | continue; | |
11713 | } | |
11714 | ||
11715 | /* This HBA contains PORT_STE configured */ | |
11716 | if (!rgn23_data[offset + 2]) | |
11717 | phba->hba_flag |= LINK_DISABLED; | |
11718 | ||
11719 | goto out; | |
11720 | } | |
11721 | } | |
11722 | out: | |
11723 | if (pmb) | |
11724 | mempool_free(pmb, phba->mbox_mem_pool); | |
11725 | kfree(rgn23_data); | |
11726 | return; | |
11727 | } |