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dea3101e | 1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
d8e93df1 | 4 | * Copyright (C) 2004-2009 Emulex. All rights reserved. * |
c44ce173 | 5 | * EMULEX and SLI are trademarks of Emulex. * |
dea3101e | 6 | * www.emulex.com * |
c44ce173 | 7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
dea3101e | 8 | * * |
9 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
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. * | |
dea3101e | 20 | *******************************************************************/ |
21 | ||
dea3101e | 22 | #include <linux/blkdev.h> |
23 | #include <linux/pci.h> | |
24 | #include <linux/interrupt.h> | |
25 | #include <linux/delay.h> | |
26 | ||
91886523 | 27 | #include <scsi/scsi.h> |
dea3101e | 28 | #include <scsi/scsi_cmnd.h> |
29 | #include <scsi/scsi_device.h> | |
30 | #include <scsi/scsi_host.h> | |
f888ba3c | 31 | #include <scsi/scsi_transport_fc.h> |
da0436e9 | 32 | #include <scsi/fc/fc_fs.h> |
0d878419 | 33 | #include <linux/aer.h> |
dea3101e | 34 | |
da0436e9 | 35 | #include "lpfc_hw4.h" |
dea3101e | 36 | #include "lpfc_hw.h" |
37 | #include "lpfc_sli.h" | |
da0436e9 | 38 | #include "lpfc_sli4.h" |
ea2151b4 | 39 | #include "lpfc_nl.h" |
dea3101e | 40 | #include "lpfc_disc.h" |
41 | #include "lpfc_scsi.h" | |
42 | #include "lpfc.h" | |
43 | #include "lpfc_crtn.h" | |
44 | #include "lpfc_logmsg.h" | |
45 | #include "lpfc_compat.h" | |
858c9f6c | 46 | #include "lpfc_debugfs.h" |
04c68496 | 47 | #include "lpfc_vport.h" |
dea3101e | 48 | |
49 | /* There are only four IOCB completion types. */ | |
50 | typedef enum _lpfc_iocb_type { | |
51 | LPFC_UNKNOWN_IOCB, | |
52 | LPFC_UNSOL_IOCB, | |
53 | LPFC_SOL_IOCB, | |
54 | LPFC_ABORT_IOCB | |
55 | } lpfc_iocb_type; | |
56 | ||
4f774513 JS |
57 | |
58 | /* Provide function prototypes local to this module. */ | |
59 | static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *, | |
60 | uint32_t); | |
61 | static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *, | |
45ed1190 JS |
62 | uint8_t *, uint32_t *); |
63 | static struct lpfc_iocbq *lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *, | |
64 | struct lpfc_iocbq *); | |
6669f9bb JS |
65 | static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *, |
66 | struct hbq_dmabuf *); | |
4f774513 JS |
67 | static IOCB_t * |
68 | lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq) | |
69 | { | |
70 | return &iocbq->iocb; | |
71 | } | |
72 | ||
73 | /** | |
74 | * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue | |
75 | * @q: The Work Queue to operate on. | |
76 | * @wqe: The work Queue Entry to put on the Work queue. | |
77 | * | |
78 | * This routine will copy the contents of @wqe to the next available entry on | |
79 | * the @q. This function will then ring the Work Queue Doorbell to signal the | |
80 | * HBA to start processing the Work Queue Entry. This function returns 0 if | |
81 | * successful. If no entries are available on @q then this function will return | |
82 | * -ENOMEM. | |
83 | * The caller is expected to hold the hbalock when calling this routine. | |
84 | **/ | |
85 | static uint32_t | |
86 | lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe) | |
87 | { | |
88 | union lpfc_wqe *temp_wqe = q->qe[q->host_index].wqe; | |
89 | struct lpfc_register doorbell; | |
90 | uint32_t host_index; | |
91 | ||
92 | /* If the host has not yet processed the next entry then we are done */ | |
93 | if (((q->host_index + 1) % q->entry_count) == q->hba_index) | |
94 | return -ENOMEM; | |
95 | /* set consumption flag every once in a while */ | |
96 | if (!((q->host_index + 1) % LPFC_RELEASE_NOTIFICATION_INTERVAL)) | |
97 | bf_set(lpfc_wqe_gen_wqec, &wqe->generic, 1); | |
98 | ||
99 | lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size); | |
100 | ||
101 | /* Update the host index before invoking device */ | |
102 | host_index = q->host_index; | |
103 | q->host_index = ((q->host_index + 1) % q->entry_count); | |
104 | ||
105 | /* Ring Doorbell */ | |
106 | doorbell.word0 = 0; | |
107 | bf_set(lpfc_wq_doorbell_num_posted, &doorbell, 1); | |
108 | bf_set(lpfc_wq_doorbell_index, &doorbell, host_index); | |
109 | bf_set(lpfc_wq_doorbell_id, &doorbell, q->queue_id); | |
110 | writel(doorbell.word0, q->phba->sli4_hba.WQDBregaddr); | |
111 | readl(q->phba->sli4_hba.WQDBregaddr); /* Flush */ | |
112 | ||
113 | return 0; | |
114 | } | |
115 | ||
116 | /** | |
117 | * lpfc_sli4_wq_release - Updates internal hba index for WQ | |
118 | * @q: The Work Queue to operate on. | |
119 | * @index: The index to advance the hba index to. | |
120 | * | |
121 | * This routine will update the HBA index of a queue to reflect consumption of | |
122 | * Work Queue Entries by the HBA. When the HBA indicates that it has consumed | |
123 | * an entry the host calls this function to update the queue's internal | |
124 | * pointers. This routine returns the number of entries that were consumed by | |
125 | * the HBA. | |
126 | **/ | |
127 | static uint32_t | |
128 | lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index) | |
129 | { | |
130 | uint32_t released = 0; | |
131 | ||
132 | if (q->hba_index == index) | |
133 | return 0; | |
134 | do { | |
135 | q->hba_index = ((q->hba_index + 1) % q->entry_count); | |
136 | released++; | |
137 | } while (q->hba_index != index); | |
138 | return released; | |
139 | } | |
140 | ||
141 | /** | |
142 | * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue | |
143 | * @q: The Mailbox Queue to operate on. | |
144 | * @wqe: The Mailbox Queue Entry to put on the Work queue. | |
145 | * | |
146 | * This routine will copy the contents of @mqe to the next available entry on | |
147 | * the @q. This function will then ring the Work Queue Doorbell to signal the | |
148 | * HBA to start processing the Work Queue Entry. This function returns 0 if | |
149 | * successful. If no entries are available on @q then this function will return | |
150 | * -ENOMEM. | |
151 | * The caller is expected to hold the hbalock when calling this routine. | |
152 | **/ | |
153 | static uint32_t | |
154 | lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe) | |
155 | { | |
156 | struct lpfc_mqe *temp_mqe = q->qe[q->host_index].mqe; | |
157 | struct lpfc_register doorbell; | |
158 | uint32_t host_index; | |
159 | ||
160 | /* If the host has not yet processed the next entry then we are done */ | |
161 | if (((q->host_index + 1) % q->entry_count) == q->hba_index) | |
162 | return -ENOMEM; | |
163 | lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size); | |
164 | /* Save off the mailbox pointer for completion */ | |
165 | q->phba->mbox = (MAILBOX_t *)temp_mqe; | |
166 | ||
167 | /* Update the host index before invoking device */ | |
168 | host_index = q->host_index; | |
169 | q->host_index = ((q->host_index + 1) % q->entry_count); | |
170 | ||
171 | /* Ring Doorbell */ | |
172 | doorbell.word0 = 0; | |
173 | bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1); | |
174 | bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id); | |
175 | writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr); | |
176 | readl(q->phba->sli4_hba.MQDBregaddr); /* Flush */ | |
177 | return 0; | |
178 | } | |
179 | ||
180 | /** | |
181 | * lpfc_sli4_mq_release - Updates internal hba index for MQ | |
182 | * @q: The Mailbox Queue to operate on. | |
183 | * | |
184 | * This routine will update the HBA index of a queue to reflect consumption of | |
185 | * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed | |
186 | * an entry the host calls this function to update the queue's internal | |
187 | * pointers. This routine returns the number of entries that were consumed by | |
188 | * the HBA. | |
189 | **/ | |
190 | static uint32_t | |
191 | lpfc_sli4_mq_release(struct lpfc_queue *q) | |
192 | { | |
193 | /* Clear the mailbox pointer for completion */ | |
194 | q->phba->mbox = NULL; | |
195 | q->hba_index = ((q->hba_index + 1) % q->entry_count); | |
196 | return 1; | |
197 | } | |
198 | ||
199 | /** | |
200 | * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ | |
201 | * @q: The Event Queue to get the first valid EQE from | |
202 | * | |
203 | * This routine will get the first valid Event Queue Entry from @q, update | |
204 | * the queue's internal hba index, and return the EQE. If no valid EQEs are in | |
205 | * the Queue (no more work to do), or the Queue is full of EQEs that have been | |
206 | * processed, but not popped back to the HBA then this routine will return NULL. | |
207 | **/ | |
208 | static struct lpfc_eqe * | |
209 | lpfc_sli4_eq_get(struct lpfc_queue *q) | |
210 | { | |
211 | struct lpfc_eqe *eqe = q->qe[q->hba_index].eqe; | |
212 | ||
213 | /* If the next EQE is not valid then we are done */ | |
214 | if (!bf_get(lpfc_eqe_valid, eqe)) | |
215 | return NULL; | |
216 | /* If the host has not yet processed the next entry then we are done */ | |
217 | if (((q->hba_index + 1) % q->entry_count) == q->host_index) | |
218 | return NULL; | |
219 | ||
220 | q->hba_index = ((q->hba_index + 1) % q->entry_count); | |
221 | return eqe; | |
222 | } | |
223 | ||
224 | /** | |
225 | * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ | |
226 | * @q: The Event Queue that the host has completed processing for. | |
227 | * @arm: Indicates whether the host wants to arms this CQ. | |
228 | * | |
229 | * This routine will mark all Event Queue Entries on @q, from the last | |
230 | * known completed entry to the last entry that was processed, as completed | |
231 | * by clearing the valid bit for each completion queue entry. Then it will | |
232 | * notify the HBA, by ringing the doorbell, that the EQEs have been processed. | |
233 | * The internal host index in the @q will be updated by this routine to indicate | |
234 | * that the host has finished processing the entries. The @arm parameter | |
235 | * indicates that the queue should be rearmed when ringing the doorbell. | |
236 | * | |
237 | * This function will return the number of EQEs that were popped. | |
238 | **/ | |
239 | uint32_t | |
240 | lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm) | |
241 | { | |
242 | uint32_t released = 0; | |
243 | struct lpfc_eqe *temp_eqe; | |
244 | struct lpfc_register doorbell; | |
245 | ||
246 | /* while there are valid entries */ | |
247 | while (q->hba_index != q->host_index) { | |
248 | temp_eqe = q->qe[q->host_index].eqe; | |
249 | bf_set(lpfc_eqe_valid, temp_eqe, 0); | |
250 | released++; | |
251 | q->host_index = ((q->host_index + 1) % q->entry_count); | |
252 | } | |
253 | if (unlikely(released == 0 && !arm)) | |
254 | return 0; | |
255 | ||
256 | /* ring doorbell for number popped */ | |
257 | doorbell.word0 = 0; | |
258 | if (arm) { | |
259 | bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1); | |
260 | bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1); | |
261 | } | |
262 | bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released); | |
263 | bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT); | |
264 | bf_set(lpfc_eqcq_doorbell_eqid, &doorbell, q->queue_id); | |
265 | writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr); | |
a747c9ce JS |
266 | /* PCI read to flush PCI pipeline on re-arming for INTx mode */ |
267 | if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM)) | |
268 | readl(q->phba->sli4_hba.EQCQDBregaddr); | |
4f774513 JS |
269 | return released; |
270 | } | |
271 | ||
272 | /** | |
273 | * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ | |
274 | * @q: The Completion Queue to get the first valid CQE from | |
275 | * | |
276 | * This routine will get the first valid Completion Queue Entry from @q, update | |
277 | * the queue's internal hba index, and return the CQE. If no valid CQEs are in | |
278 | * the Queue (no more work to do), or the Queue is full of CQEs that have been | |
279 | * processed, but not popped back to the HBA then this routine will return NULL. | |
280 | **/ | |
281 | static struct lpfc_cqe * | |
282 | lpfc_sli4_cq_get(struct lpfc_queue *q) | |
283 | { | |
284 | struct lpfc_cqe *cqe; | |
285 | ||
286 | /* If the next CQE is not valid then we are done */ | |
287 | if (!bf_get(lpfc_cqe_valid, q->qe[q->hba_index].cqe)) | |
288 | return NULL; | |
289 | /* If the host has not yet processed the next entry then we are done */ | |
290 | if (((q->hba_index + 1) % q->entry_count) == q->host_index) | |
291 | return NULL; | |
292 | ||
293 | cqe = q->qe[q->hba_index].cqe; | |
294 | q->hba_index = ((q->hba_index + 1) % q->entry_count); | |
295 | return cqe; | |
296 | } | |
297 | ||
298 | /** | |
299 | * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ | |
300 | * @q: The Completion Queue that the host has completed processing for. | |
301 | * @arm: Indicates whether the host wants to arms this CQ. | |
302 | * | |
303 | * This routine will mark all Completion queue entries on @q, from the last | |
304 | * known completed entry to the last entry that was processed, as completed | |
305 | * by clearing the valid bit for each completion queue entry. Then it will | |
306 | * notify the HBA, by ringing the doorbell, that the CQEs have been processed. | |
307 | * The internal host index in the @q will be updated by this routine to indicate | |
308 | * that the host has finished processing the entries. The @arm parameter | |
309 | * indicates that the queue should be rearmed when ringing the doorbell. | |
310 | * | |
311 | * This function will return the number of CQEs that were released. | |
312 | **/ | |
313 | uint32_t | |
314 | lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm) | |
315 | { | |
316 | uint32_t released = 0; | |
317 | struct lpfc_cqe *temp_qe; | |
318 | struct lpfc_register doorbell; | |
319 | ||
320 | /* while there are valid entries */ | |
321 | while (q->hba_index != q->host_index) { | |
322 | temp_qe = q->qe[q->host_index].cqe; | |
323 | bf_set(lpfc_cqe_valid, temp_qe, 0); | |
324 | released++; | |
325 | q->host_index = ((q->host_index + 1) % q->entry_count); | |
326 | } | |
327 | if (unlikely(released == 0 && !arm)) | |
328 | return 0; | |
329 | ||
330 | /* ring doorbell for number popped */ | |
331 | doorbell.word0 = 0; | |
332 | if (arm) | |
333 | bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1); | |
334 | bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released); | |
335 | bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION); | |
336 | bf_set(lpfc_eqcq_doorbell_cqid, &doorbell, q->queue_id); | |
337 | writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr); | |
338 | return released; | |
339 | } | |
340 | ||
341 | /** | |
342 | * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue | |
343 | * @q: The Header Receive Queue to operate on. | |
344 | * @wqe: The Receive Queue Entry to put on the Receive queue. | |
345 | * | |
346 | * This routine will copy the contents of @wqe to the next available entry on | |
347 | * the @q. This function will then ring the Receive Queue Doorbell to signal the | |
348 | * HBA to start processing the Receive Queue Entry. This function returns the | |
349 | * index that the rqe was copied to if successful. If no entries are available | |
350 | * on @q then this function will return -ENOMEM. | |
351 | * The caller is expected to hold the hbalock when calling this routine. | |
352 | **/ | |
353 | static int | |
354 | lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq, | |
355 | struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe) | |
356 | { | |
357 | struct lpfc_rqe *temp_hrqe = hq->qe[hq->host_index].rqe; | |
358 | struct lpfc_rqe *temp_drqe = dq->qe[dq->host_index].rqe; | |
359 | struct lpfc_register doorbell; | |
360 | int put_index = hq->host_index; | |
361 | ||
362 | if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ) | |
363 | return -EINVAL; | |
364 | if (hq->host_index != dq->host_index) | |
365 | return -EINVAL; | |
366 | /* If the host has not yet processed the next entry then we are done */ | |
367 | if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index) | |
368 | return -EBUSY; | |
369 | lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size); | |
370 | lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size); | |
371 | ||
372 | /* Update the host index to point to the next slot */ | |
373 | hq->host_index = ((hq->host_index + 1) % hq->entry_count); | |
374 | dq->host_index = ((dq->host_index + 1) % dq->entry_count); | |
375 | ||
376 | /* Ring The Header Receive Queue Doorbell */ | |
377 | if (!(hq->host_index % LPFC_RQ_POST_BATCH)) { | |
378 | doorbell.word0 = 0; | |
379 | bf_set(lpfc_rq_doorbell_num_posted, &doorbell, | |
380 | LPFC_RQ_POST_BATCH); | |
381 | bf_set(lpfc_rq_doorbell_id, &doorbell, hq->queue_id); | |
382 | writel(doorbell.word0, hq->phba->sli4_hba.RQDBregaddr); | |
383 | } | |
384 | return put_index; | |
385 | } | |
386 | ||
387 | /** | |
388 | * lpfc_sli4_rq_release - Updates internal hba index for RQ | |
389 | * @q: The Header Receive Queue to operate on. | |
390 | * | |
391 | * This routine will update the HBA index of a queue to reflect consumption of | |
392 | * one Receive Queue Entry by the HBA. When the HBA indicates that it has | |
393 | * consumed an entry the host calls this function to update the queue's | |
394 | * internal pointers. This routine returns the number of entries that were | |
395 | * consumed by the HBA. | |
396 | **/ | |
397 | static uint32_t | |
398 | lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq) | |
399 | { | |
400 | if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ)) | |
401 | return 0; | |
402 | hq->hba_index = ((hq->hba_index + 1) % hq->entry_count); | |
403 | dq->hba_index = ((dq->hba_index + 1) % dq->entry_count); | |
404 | return 1; | |
405 | } | |
406 | ||
e59058c4 | 407 | /** |
3621a710 | 408 | * lpfc_cmd_iocb - Get next command iocb entry in the ring |
e59058c4 JS |
409 | * @phba: Pointer to HBA context object. |
410 | * @pring: Pointer to driver SLI ring object. | |
411 | * | |
412 | * This function returns pointer to next command iocb entry | |
413 | * in the command ring. The caller must hold hbalock to prevent | |
414 | * other threads consume the next command iocb. | |
415 | * SLI-2/SLI-3 provide different sized iocbs. | |
416 | **/ | |
ed957684 JS |
417 | static inline IOCB_t * |
418 | lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
419 | { | |
420 | return (IOCB_t *) (((char *) pring->cmdringaddr) + | |
421 | pring->cmdidx * phba->iocb_cmd_size); | |
422 | } | |
423 | ||
e59058c4 | 424 | /** |
3621a710 | 425 | * lpfc_resp_iocb - Get next response iocb entry in the ring |
e59058c4 JS |
426 | * @phba: Pointer to HBA context object. |
427 | * @pring: Pointer to driver SLI ring object. | |
428 | * | |
429 | * This function returns pointer to next response iocb entry | |
430 | * in the response ring. The caller must hold hbalock to make sure | |
431 | * that no other thread consume the next response iocb. | |
432 | * SLI-2/SLI-3 provide different sized iocbs. | |
433 | **/ | |
ed957684 JS |
434 | static inline IOCB_t * |
435 | lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
436 | { | |
437 | return (IOCB_t *) (((char *) pring->rspringaddr) + | |
438 | pring->rspidx * phba->iocb_rsp_size); | |
439 | } | |
440 | ||
e59058c4 | 441 | /** |
3621a710 | 442 | * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool |
e59058c4 JS |
443 | * @phba: Pointer to HBA context object. |
444 | * | |
445 | * This function is called with hbalock held. This function | |
446 | * allocates a new driver iocb object from the iocb pool. If the | |
447 | * allocation is successful, it returns pointer to the newly | |
448 | * allocated iocb object else it returns NULL. | |
449 | **/ | |
2e0fef85 JS |
450 | static struct lpfc_iocbq * |
451 | __lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
0bd4ca25 JSEC |
452 | { |
453 | struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list; | |
454 | struct lpfc_iocbq * iocbq = NULL; | |
455 | ||
456 | list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list); | |
457 | return iocbq; | |
458 | } | |
459 | ||
da0436e9 JS |
460 | /** |
461 | * __lpfc_clear_active_sglq - Remove the active sglq for this XRI. | |
462 | * @phba: Pointer to HBA context object. | |
463 | * @xritag: XRI value. | |
464 | * | |
465 | * This function clears the sglq pointer from the array of acive | |
466 | * sglq's. The xritag that is passed in is used to index into the | |
467 | * array. Before the xritag can be used it needs to be adjusted | |
468 | * by subtracting the xribase. | |
469 | * | |
470 | * Returns sglq ponter = success, NULL = Failure. | |
471 | **/ | |
472 | static struct lpfc_sglq * | |
473 | __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag) | |
474 | { | |
475 | uint16_t adj_xri; | |
476 | struct lpfc_sglq *sglq; | |
477 | adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base; | |
478 | if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri) | |
479 | return NULL; | |
480 | sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri]; | |
481 | phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = NULL; | |
482 | return sglq; | |
483 | } | |
484 | ||
485 | /** | |
486 | * __lpfc_get_active_sglq - Get the active sglq for this XRI. | |
487 | * @phba: Pointer to HBA context object. | |
488 | * @xritag: XRI value. | |
489 | * | |
490 | * This function returns the sglq pointer from the array of acive | |
491 | * sglq's. The xritag that is passed in is used to index into the | |
492 | * array. Before the xritag can be used it needs to be adjusted | |
493 | * by subtracting the xribase. | |
494 | * | |
495 | * Returns sglq ponter = success, NULL = Failure. | |
496 | **/ | |
497 | static struct lpfc_sglq * | |
498 | __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag) | |
499 | { | |
500 | uint16_t adj_xri; | |
501 | struct lpfc_sglq *sglq; | |
502 | adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base; | |
503 | if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri) | |
504 | return NULL; | |
505 | sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri]; | |
506 | return sglq; | |
507 | } | |
508 | ||
509 | /** | |
510 | * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool | |
511 | * @phba: Pointer to HBA context object. | |
512 | * | |
513 | * This function is called with hbalock held. This function | |
514 | * Gets a new driver sglq object from the sglq list. If the | |
515 | * list is not empty then it is successful, it returns pointer to the newly | |
516 | * allocated sglq object else it returns NULL. | |
517 | **/ | |
518 | static struct lpfc_sglq * | |
519 | __lpfc_sli_get_sglq(struct lpfc_hba *phba) | |
520 | { | |
521 | struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list; | |
522 | struct lpfc_sglq *sglq = NULL; | |
523 | uint16_t adj_xri; | |
524 | list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list); | |
6a9c52cf JS |
525 | if (!sglq) |
526 | return NULL; | |
da0436e9 JS |
527 | adj_xri = sglq->sli4_xritag - phba->sli4_hba.max_cfg_param.xri_base; |
528 | phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = sglq; | |
529 | return sglq; | |
530 | } | |
531 | ||
e59058c4 | 532 | /** |
3621a710 | 533 | * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool |
e59058c4 JS |
534 | * @phba: Pointer to HBA context object. |
535 | * | |
536 | * This function is called with no lock held. This function | |
537 | * allocates a new driver iocb object from the iocb pool. If the | |
538 | * allocation is successful, it returns pointer to the newly | |
539 | * allocated iocb object else it returns NULL. | |
540 | **/ | |
2e0fef85 JS |
541 | struct lpfc_iocbq * |
542 | lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
543 | { | |
544 | struct lpfc_iocbq * iocbq = NULL; | |
545 | unsigned long iflags; | |
546 | ||
547 | spin_lock_irqsave(&phba->hbalock, iflags); | |
548 | iocbq = __lpfc_sli_get_iocbq(phba); | |
549 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
550 | return iocbq; | |
551 | } | |
552 | ||
4f774513 JS |
553 | /** |
554 | * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool | |
555 | * @phba: Pointer to HBA context object. | |
556 | * @iocbq: Pointer to driver iocb object. | |
557 | * | |
558 | * This function is called with hbalock held to release driver | |
559 | * iocb object to the iocb pool. The iotag in the iocb object | |
560 | * does not change for each use of the iocb object. This function | |
561 | * clears all other fields of the iocb object when it is freed. | |
562 | * The sqlq structure that holds the xritag and phys and virtual | |
563 | * mappings for the scatter gather list is retrieved from the | |
564 | * active array of sglq. The get of the sglq pointer also clears | |
565 | * the entry in the array. If the status of the IO indiactes that | |
566 | * this IO was aborted then the sglq entry it put on the | |
567 | * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the | |
568 | * IO has good status or fails for any other reason then the sglq | |
569 | * entry is added to the free list (lpfc_sgl_list). | |
570 | **/ | |
571 | static void | |
572 | __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
573 | { | |
574 | struct lpfc_sglq *sglq; | |
575 | size_t start_clean = offsetof(struct lpfc_iocbq, iocb); | |
576 | unsigned long iflag; | |
577 | ||
578 | if (iocbq->sli4_xritag == NO_XRI) | |
579 | sglq = NULL; | |
580 | else | |
581 | sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_xritag); | |
582 | if (sglq) { | |
341af102 | 583 | if (iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) { |
4f774513 JS |
584 | spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock, |
585 | iflag); | |
586 | list_add(&sglq->list, | |
587 | &phba->sli4_hba.lpfc_abts_els_sgl_list); | |
588 | spin_unlock_irqrestore( | |
589 | &phba->sli4_hba.abts_sgl_list_lock, iflag); | |
590 | } else | |
591 | list_add(&sglq->list, &phba->sli4_hba.lpfc_sgl_list); | |
592 | } | |
593 | ||
594 | ||
595 | /* | |
596 | * Clean all volatile data fields, preserve iotag and node struct. | |
597 | */ | |
598 | memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); | |
599 | iocbq->sli4_xritag = NO_XRI; | |
600 | list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); | |
601 | } | |
602 | ||
e59058c4 | 603 | /** |
3772a991 | 604 | * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool |
e59058c4 JS |
605 | * @phba: Pointer to HBA context object. |
606 | * @iocbq: Pointer to driver iocb object. | |
607 | * | |
608 | * This function is called with hbalock held to release driver | |
609 | * iocb object to the iocb pool. The iotag in the iocb object | |
610 | * does not change for each use of the iocb object. This function | |
611 | * clears all other fields of the iocb object when it is freed. | |
612 | **/ | |
a6ababd2 | 613 | static void |
3772a991 | 614 | __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) |
604a3e30 | 615 | { |
2e0fef85 | 616 | size_t start_clean = offsetof(struct lpfc_iocbq, iocb); |
604a3e30 JB |
617 | |
618 | /* | |
619 | * Clean all volatile data fields, preserve iotag and node struct. | |
620 | */ | |
621 | memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); | |
3772a991 | 622 | iocbq->sli4_xritag = NO_XRI; |
604a3e30 JB |
623 | list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); |
624 | } | |
625 | ||
3772a991 JS |
626 | /** |
627 | * __lpfc_sli_release_iocbq - Release iocb to the iocb pool | |
628 | * @phba: Pointer to HBA context object. | |
629 | * @iocbq: Pointer to driver iocb object. | |
630 | * | |
631 | * This function is called with hbalock held to release driver | |
632 | * iocb object to the iocb pool. The iotag in the iocb object | |
633 | * does not change for each use of the iocb object. This function | |
634 | * clears all other fields of the iocb object when it is freed. | |
635 | **/ | |
636 | static void | |
637 | __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
638 | { | |
639 | phba->__lpfc_sli_release_iocbq(phba, iocbq); | |
640 | } | |
641 | ||
e59058c4 | 642 | /** |
3621a710 | 643 | * lpfc_sli_release_iocbq - Release iocb to the iocb pool |
e59058c4 JS |
644 | * @phba: Pointer to HBA context object. |
645 | * @iocbq: Pointer to driver iocb object. | |
646 | * | |
647 | * This function is called with no lock held to release the iocb to | |
648 | * iocb pool. | |
649 | **/ | |
2e0fef85 JS |
650 | void |
651 | lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
652 | { | |
653 | unsigned long iflags; | |
654 | ||
655 | /* | |
656 | * Clean all volatile data fields, preserve iotag and node struct. | |
657 | */ | |
658 | spin_lock_irqsave(&phba->hbalock, iflags); | |
659 | __lpfc_sli_release_iocbq(phba, iocbq); | |
660 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
661 | } | |
662 | ||
a257bf90 JS |
663 | /** |
664 | * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list. | |
665 | * @phba: Pointer to HBA context object. | |
666 | * @iocblist: List of IOCBs. | |
667 | * @ulpstatus: ULP status in IOCB command field. | |
668 | * @ulpWord4: ULP word-4 in IOCB command field. | |
669 | * | |
670 | * This function is called with a list of IOCBs to cancel. It cancels the IOCB | |
671 | * on the list by invoking the complete callback function associated with the | |
672 | * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond | |
673 | * fields. | |
674 | **/ | |
675 | void | |
676 | lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist, | |
677 | uint32_t ulpstatus, uint32_t ulpWord4) | |
678 | { | |
679 | struct lpfc_iocbq *piocb; | |
680 | ||
681 | while (!list_empty(iocblist)) { | |
682 | list_remove_head(iocblist, piocb, struct lpfc_iocbq, list); | |
683 | ||
684 | if (!piocb->iocb_cmpl) | |
685 | lpfc_sli_release_iocbq(phba, piocb); | |
686 | else { | |
687 | piocb->iocb.ulpStatus = ulpstatus; | |
688 | piocb->iocb.un.ulpWord[4] = ulpWord4; | |
689 | (piocb->iocb_cmpl) (phba, piocb, piocb); | |
690 | } | |
691 | } | |
692 | return; | |
693 | } | |
694 | ||
e59058c4 | 695 | /** |
3621a710 JS |
696 | * lpfc_sli_iocb_cmd_type - Get the iocb type |
697 | * @iocb_cmnd: iocb command code. | |
e59058c4 JS |
698 | * |
699 | * This function is called by ring event handler function to get the iocb type. | |
700 | * This function translates the iocb command to an iocb command type used to | |
701 | * decide the final disposition of each completed IOCB. | |
702 | * The function returns | |
703 | * LPFC_UNKNOWN_IOCB if it is an unsupported iocb | |
704 | * LPFC_SOL_IOCB if it is a solicited iocb completion | |
705 | * LPFC_ABORT_IOCB if it is an abort iocb | |
706 | * LPFC_UNSOL_IOCB if it is an unsolicited iocb | |
707 | * | |
708 | * The caller is not required to hold any lock. | |
709 | **/ | |
dea3101e | 710 | static lpfc_iocb_type |
711 | lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd) | |
712 | { | |
713 | lpfc_iocb_type type = LPFC_UNKNOWN_IOCB; | |
714 | ||
715 | if (iocb_cmnd > CMD_MAX_IOCB_CMD) | |
716 | return 0; | |
717 | ||
718 | switch (iocb_cmnd) { | |
719 | case CMD_XMIT_SEQUENCE_CR: | |
720 | case CMD_XMIT_SEQUENCE_CX: | |
721 | case CMD_XMIT_BCAST_CN: | |
722 | case CMD_XMIT_BCAST_CX: | |
723 | case CMD_ELS_REQUEST_CR: | |
724 | case CMD_ELS_REQUEST_CX: | |
725 | case CMD_CREATE_XRI_CR: | |
726 | case CMD_CREATE_XRI_CX: | |
727 | case CMD_GET_RPI_CN: | |
728 | case CMD_XMIT_ELS_RSP_CX: | |
729 | case CMD_GET_RPI_CR: | |
730 | case CMD_FCP_IWRITE_CR: | |
731 | case CMD_FCP_IWRITE_CX: | |
732 | case CMD_FCP_IREAD_CR: | |
733 | case CMD_FCP_IREAD_CX: | |
734 | case CMD_FCP_ICMND_CR: | |
735 | case CMD_FCP_ICMND_CX: | |
f5603511 JS |
736 | case CMD_FCP_TSEND_CX: |
737 | case CMD_FCP_TRSP_CX: | |
738 | case CMD_FCP_TRECEIVE_CX: | |
739 | case CMD_FCP_AUTO_TRSP_CX: | |
dea3101e | 740 | case CMD_ADAPTER_MSG: |
741 | case CMD_ADAPTER_DUMP: | |
742 | case CMD_XMIT_SEQUENCE64_CR: | |
743 | case CMD_XMIT_SEQUENCE64_CX: | |
744 | case CMD_XMIT_BCAST64_CN: | |
745 | case CMD_XMIT_BCAST64_CX: | |
746 | case CMD_ELS_REQUEST64_CR: | |
747 | case CMD_ELS_REQUEST64_CX: | |
748 | case CMD_FCP_IWRITE64_CR: | |
749 | case CMD_FCP_IWRITE64_CX: | |
750 | case CMD_FCP_IREAD64_CR: | |
751 | case CMD_FCP_IREAD64_CX: | |
752 | case CMD_FCP_ICMND64_CR: | |
753 | case CMD_FCP_ICMND64_CX: | |
f5603511 JS |
754 | case CMD_FCP_TSEND64_CX: |
755 | case CMD_FCP_TRSP64_CX: | |
756 | case CMD_FCP_TRECEIVE64_CX: | |
dea3101e | 757 | case CMD_GEN_REQUEST64_CR: |
758 | case CMD_GEN_REQUEST64_CX: | |
759 | case CMD_XMIT_ELS_RSP64_CX: | |
da0436e9 JS |
760 | case DSSCMD_IWRITE64_CR: |
761 | case DSSCMD_IWRITE64_CX: | |
762 | case DSSCMD_IREAD64_CR: | |
763 | case DSSCMD_IREAD64_CX: | |
dea3101e | 764 | type = LPFC_SOL_IOCB; |
765 | break; | |
766 | case CMD_ABORT_XRI_CN: | |
767 | case CMD_ABORT_XRI_CX: | |
768 | case CMD_CLOSE_XRI_CN: | |
769 | case CMD_CLOSE_XRI_CX: | |
770 | case CMD_XRI_ABORTED_CX: | |
771 | case CMD_ABORT_MXRI64_CN: | |
6669f9bb | 772 | case CMD_XMIT_BLS_RSP64_CX: |
dea3101e | 773 | type = LPFC_ABORT_IOCB; |
774 | break; | |
775 | case CMD_RCV_SEQUENCE_CX: | |
776 | case CMD_RCV_ELS_REQ_CX: | |
777 | case CMD_RCV_SEQUENCE64_CX: | |
778 | case CMD_RCV_ELS_REQ64_CX: | |
57127f15 | 779 | case CMD_ASYNC_STATUS: |
ed957684 JS |
780 | case CMD_IOCB_RCV_SEQ64_CX: |
781 | case CMD_IOCB_RCV_ELS64_CX: | |
782 | case CMD_IOCB_RCV_CONT64_CX: | |
3163f725 | 783 | case CMD_IOCB_RET_XRI64_CX: |
dea3101e | 784 | type = LPFC_UNSOL_IOCB; |
785 | break; | |
3163f725 JS |
786 | case CMD_IOCB_XMIT_MSEQ64_CR: |
787 | case CMD_IOCB_XMIT_MSEQ64_CX: | |
788 | case CMD_IOCB_RCV_SEQ_LIST64_CX: | |
789 | case CMD_IOCB_RCV_ELS_LIST64_CX: | |
790 | case CMD_IOCB_CLOSE_EXTENDED_CN: | |
791 | case CMD_IOCB_ABORT_EXTENDED_CN: | |
792 | case CMD_IOCB_RET_HBQE64_CN: | |
793 | case CMD_IOCB_FCP_IBIDIR64_CR: | |
794 | case CMD_IOCB_FCP_IBIDIR64_CX: | |
795 | case CMD_IOCB_FCP_ITASKMGT64_CX: | |
796 | case CMD_IOCB_LOGENTRY_CN: | |
797 | case CMD_IOCB_LOGENTRY_ASYNC_CN: | |
798 | printk("%s - Unhandled SLI-3 Command x%x\n", | |
cadbd4a5 | 799 | __func__, iocb_cmnd); |
3163f725 JS |
800 | type = LPFC_UNKNOWN_IOCB; |
801 | break; | |
dea3101e | 802 | default: |
803 | type = LPFC_UNKNOWN_IOCB; | |
804 | break; | |
805 | } | |
806 | ||
807 | return type; | |
808 | } | |
809 | ||
e59058c4 | 810 | /** |
3621a710 | 811 | * lpfc_sli_ring_map - Issue config_ring mbox for all rings |
e59058c4 JS |
812 | * @phba: Pointer to HBA context object. |
813 | * | |
814 | * This function is called from SLI initialization code | |
815 | * to configure every ring of the HBA's SLI interface. The | |
816 | * caller is not required to hold any lock. This function issues | |
817 | * a config_ring mailbox command for each ring. | |
818 | * This function returns zero if successful else returns a negative | |
819 | * error code. | |
820 | **/ | |
dea3101e | 821 | static int |
ed957684 | 822 | lpfc_sli_ring_map(struct lpfc_hba *phba) |
dea3101e | 823 | { |
824 | struct lpfc_sli *psli = &phba->sli; | |
ed957684 JS |
825 | LPFC_MBOXQ_t *pmb; |
826 | MAILBOX_t *pmbox; | |
827 | int i, rc, ret = 0; | |
dea3101e | 828 | |
ed957684 JS |
829 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
830 | if (!pmb) | |
831 | return -ENOMEM; | |
04c68496 | 832 | pmbox = &pmb->u.mb; |
ed957684 | 833 | phba->link_state = LPFC_INIT_MBX_CMDS; |
dea3101e | 834 | for (i = 0; i < psli->num_rings; i++) { |
dea3101e | 835 | lpfc_config_ring(phba, i, pmb); |
836 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
837 | if (rc != MBX_SUCCESS) { | |
92d7f7b0 | 838 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 839 | "0446 Adapter failed to init (%d), " |
dea3101e | 840 | "mbxCmd x%x CFG_RING, mbxStatus x%x, " |
841 | "ring %d\n", | |
e8b62011 JS |
842 | rc, pmbox->mbxCommand, |
843 | pmbox->mbxStatus, i); | |
2e0fef85 | 844 | phba->link_state = LPFC_HBA_ERROR; |
ed957684 JS |
845 | ret = -ENXIO; |
846 | break; | |
dea3101e | 847 | } |
848 | } | |
ed957684 JS |
849 | mempool_free(pmb, phba->mbox_mem_pool); |
850 | return ret; | |
dea3101e | 851 | } |
852 | ||
e59058c4 | 853 | /** |
3621a710 | 854 | * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq |
e59058c4 JS |
855 | * @phba: Pointer to HBA context object. |
856 | * @pring: Pointer to driver SLI ring object. | |
857 | * @piocb: Pointer to the driver iocb object. | |
858 | * | |
859 | * This function is called with hbalock held. The function adds the | |
860 | * new iocb to txcmplq of the given ring. This function always returns | |
861 | * 0. If this function is called for ELS ring, this function checks if | |
862 | * there is a vport associated with the ELS command. This function also | |
863 | * starts els_tmofunc timer if this is an ELS command. | |
864 | **/ | |
dea3101e | 865 | static int |
2e0fef85 JS |
866 | lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
867 | struct lpfc_iocbq *piocb) | |
dea3101e | 868 | { |
dea3101e | 869 | list_add_tail(&piocb->list, &pring->txcmplq); |
870 | pring->txcmplq_cnt++; | |
92d7f7b0 JS |
871 | if ((unlikely(pring->ringno == LPFC_ELS_RING)) && |
872 | (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && | |
873 | (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { | |
874 | if (!piocb->vport) | |
875 | BUG(); | |
876 | else | |
877 | mod_timer(&piocb->vport->els_tmofunc, | |
878 | jiffies + HZ * (phba->fc_ratov << 1)); | |
879 | } | |
880 | ||
dea3101e | 881 | |
2e0fef85 | 882 | return 0; |
dea3101e | 883 | } |
884 | ||
e59058c4 | 885 | /** |
3621a710 | 886 | * lpfc_sli_ringtx_get - Get first element of the txq |
e59058c4 JS |
887 | * @phba: Pointer to HBA context object. |
888 | * @pring: Pointer to driver SLI ring object. | |
889 | * | |
890 | * This function is called with hbalock held to get next | |
891 | * iocb in txq of the given ring. If there is any iocb in | |
892 | * the txq, the function returns first iocb in the list after | |
893 | * removing the iocb from the list, else it returns NULL. | |
894 | **/ | |
dea3101e | 895 | static struct lpfc_iocbq * |
2e0fef85 | 896 | lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 897 | { |
dea3101e | 898 | struct lpfc_iocbq *cmd_iocb; |
899 | ||
858c9f6c JS |
900 | list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list); |
901 | if (cmd_iocb != NULL) | |
dea3101e | 902 | pring->txq_cnt--; |
2e0fef85 | 903 | return cmd_iocb; |
dea3101e | 904 | } |
905 | ||
e59058c4 | 906 | /** |
3621a710 | 907 | * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring |
e59058c4 JS |
908 | * @phba: Pointer to HBA context object. |
909 | * @pring: Pointer to driver SLI ring object. | |
910 | * | |
911 | * This function is called with hbalock held and the caller must post the | |
912 | * iocb without releasing the lock. If the caller releases the lock, | |
913 | * iocb slot returned by the function is not guaranteed to be available. | |
914 | * The function returns pointer to the next available iocb slot if there | |
915 | * is available slot in the ring, else it returns NULL. | |
916 | * If the get index of the ring is ahead of the put index, the function | |
917 | * will post an error attention event to the worker thread to take the | |
918 | * HBA to offline state. | |
919 | **/ | |
dea3101e | 920 | static IOCB_t * |
921 | lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
922 | { | |
34b02dcd | 923 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
dea3101e | 924 | uint32_t max_cmd_idx = pring->numCiocb; |
dea3101e | 925 | if ((pring->next_cmdidx == pring->cmdidx) && |
926 | (++pring->next_cmdidx >= max_cmd_idx)) | |
927 | pring->next_cmdidx = 0; | |
928 | ||
929 | if (unlikely(pring->local_getidx == pring->next_cmdidx)) { | |
930 | ||
931 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
932 | ||
933 | if (unlikely(pring->local_getidx >= max_cmd_idx)) { | |
934 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 935 | "0315 Ring %d issue: portCmdGet %d " |
025dfdaf | 936 | "is bigger than cmd ring %d\n", |
e8b62011 | 937 | pring->ringno, |
dea3101e | 938 | pring->local_getidx, max_cmd_idx); |
939 | ||
2e0fef85 | 940 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 941 | /* |
942 | * All error attention handlers are posted to | |
943 | * worker thread | |
944 | */ | |
945 | phba->work_ha |= HA_ERATT; | |
946 | phba->work_hs = HS_FFER3; | |
92d7f7b0 | 947 | |
5e9d9b82 | 948 | lpfc_worker_wake_up(phba); |
dea3101e | 949 | |
950 | return NULL; | |
951 | } | |
952 | ||
953 | if (pring->local_getidx == pring->next_cmdidx) | |
954 | return NULL; | |
955 | } | |
956 | ||
ed957684 | 957 | return lpfc_cmd_iocb(phba, pring); |
dea3101e | 958 | } |
959 | ||
e59058c4 | 960 | /** |
3621a710 | 961 | * lpfc_sli_next_iotag - Get an iotag for the iocb |
e59058c4 JS |
962 | * @phba: Pointer to HBA context object. |
963 | * @iocbq: Pointer to driver iocb object. | |
964 | * | |
965 | * This function gets an iotag for the iocb. If there is no unused iotag and | |
966 | * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup | |
967 | * array and assigns a new iotag. | |
968 | * The function returns the allocated iotag if successful, else returns zero. | |
969 | * Zero is not a valid iotag. | |
970 | * The caller is not required to hold any lock. | |
971 | **/ | |
604a3e30 | 972 | uint16_t |
2e0fef85 | 973 | lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) |
dea3101e | 974 | { |
2e0fef85 JS |
975 | struct lpfc_iocbq **new_arr; |
976 | struct lpfc_iocbq **old_arr; | |
604a3e30 JB |
977 | size_t new_len; |
978 | struct lpfc_sli *psli = &phba->sli; | |
979 | uint16_t iotag; | |
dea3101e | 980 | |
2e0fef85 | 981 | spin_lock_irq(&phba->hbalock); |
604a3e30 JB |
982 | iotag = psli->last_iotag; |
983 | if(++iotag < psli->iocbq_lookup_len) { | |
984 | psli->last_iotag = iotag; | |
985 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 986 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
987 | iocbq->iotag = iotag; |
988 | return iotag; | |
2e0fef85 | 989 | } else if (psli->iocbq_lookup_len < (0xffff |
604a3e30 JB |
990 | - LPFC_IOCBQ_LOOKUP_INCREMENT)) { |
991 | new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT; | |
2e0fef85 JS |
992 | spin_unlock_irq(&phba->hbalock); |
993 | new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *), | |
604a3e30 JB |
994 | GFP_KERNEL); |
995 | if (new_arr) { | |
2e0fef85 | 996 | spin_lock_irq(&phba->hbalock); |
604a3e30 JB |
997 | old_arr = psli->iocbq_lookup; |
998 | if (new_len <= psli->iocbq_lookup_len) { | |
999 | /* highly unprobable case */ | |
1000 | kfree(new_arr); | |
1001 | iotag = psli->last_iotag; | |
1002 | if(++iotag < psli->iocbq_lookup_len) { | |
1003 | psli->last_iotag = iotag; | |
1004 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 1005 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
1006 | iocbq->iotag = iotag; |
1007 | return iotag; | |
1008 | } | |
2e0fef85 | 1009 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
1010 | return 0; |
1011 | } | |
1012 | if (psli->iocbq_lookup) | |
1013 | memcpy(new_arr, old_arr, | |
1014 | ((psli->last_iotag + 1) * | |
311464ec | 1015 | sizeof (struct lpfc_iocbq *))); |
604a3e30 JB |
1016 | psli->iocbq_lookup = new_arr; |
1017 | psli->iocbq_lookup_len = new_len; | |
1018 | psli->last_iotag = iotag; | |
1019 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 1020 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
1021 | iocbq->iotag = iotag; |
1022 | kfree(old_arr); | |
1023 | return iotag; | |
1024 | } | |
8f6d98d2 | 1025 | } else |
2e0fef85 | 1026 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 1027 | |
604a3e30 | 1028 | lpfc_printf_log(phba, KERN_ERR,LOG_SLI, |
e8b62011 JS |
1029 | "0318 Failed to allocate IOTAG.last IOTAG is %d\n", |
1030 | psli->last_iotag); | |
dea3101e | 1031 | |
604a3e30 | 1032 | return 0; |
dea3101e | 1033 | } |
1034 | ||
e59058c4 | 1035 | /** |
3621a710 | 1036 | * lpfc_sli_submit_iocb - Submit an iocb to the firmware |
e59058c4 JS |
1037 | * @phba: Pointer to HBA context object. |
1038 | * @pring: Pointer to driver SLI ring object. | |
1039 | * @iocb: Pointer to iocb slot in the ring. | |
1040 | * @nextiocb: Pointer to driver iocb object which need to be | |
1041 | * posted to firmware. | |
1042 | * | |
1043 | * This function is called with hbalock held to post a new iocb to | |
1044 | * the firmware. This function copies the new iocb to ring iocb slot and | |
1045 | * updates the ring pointers. It adds the new iocb to txcmplq if there is | |
1046 | * a completion call back for this iocb else the function will free the | |
1047 | * iocb object. | |
1048 | **/ | |
dea3101e | 1049 | static void |
1050 | lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
1051 | IOCB_t *iocb, struct lpfc_iocbq *nextiocb) | |
1052 | { | |
1053 | /* | |
604a3e30 | 1054 | * Set up an iotag |
dea3101e | 1055 | */ |
604a3e30 | 1056 | nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0; |
dea3101e | 1057 | |
e2a0a9d6 | 1058 | |
a58cbd52 JS |
1059 | if (pring->ringno == LPFC_ELS_RING) { |
1060 | lpfc_debugfs_slow_ring_trc(phba, | |
1061 | "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x", | |
1062 | *(((uint32_t *) &nextiocb->iocb) + 4), | |
1063 | *(((uint32_t *) &nextiocb->iocb) + 6), | |
1064 | *(((uint32_t *) &nextiocb->iocb) + 7)); | |
1065 | } | |
1066 | ||
dea3101e | 1067 | /* |
1068 | * Issue iocb command to adapter | |
1069 | */ | |
92d7f7b0 | 1070 | lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size); |
dea3101e | 1071 | wmb(); |
1072 | pring->stats.iocb_cmd++; | |
1073 | ||
1074 | /* | |
1075 | * If there is no completion routine to call, we can release the | |
1076 | * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF, | |
1077 | * that have no rsp ring completion, iocb_cmpl MUST be NULL. | |
1078 | */ | |
1079 | if (nextiocb->iocb_cmpl) | |
1080 | lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb); | |
604a3e30 | 1081 | else |
2e0fef85 | 1082 | __lpfc_sli_release_iocbq(phba, nextiocb); |
dea3101e | 1083 | |
1084 | /* | |
1085 | * Let the HBA know what IOCB slot will be the next one the | |
1086 | * driver will put a command into. | |
1087 | */ | |
1088 | pring->cmdidx = pring->next_cmdidx; | |
ed957684 | 1089 | writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx); |
dea3101e | 1090 | } |
1091 | ||
e59058c4 | 1092 | /** |
3621a710 | 1093 | * lpfc_sli_update_full_ring - Update the chip attention register |
e59058c4 JS |
1094 | * @phba: Pointer to HBA context object. |
1095 | * @pring: Pointer to driver SLI ring object. | |
1096 | * | |
1097 | * The caller is not required to hold any lock for calling this function. | |
1098 | * This function updates the chip attention bits for the ring to inform firmware | |
1099 | * that there are pending work to be done for this ring and requests an | |
1100 | * interrupt when there is space available in the ring. This function is | |
1101 | * called when the driver is unable to post more iocbs to the ring due | |
1102 | * to unavailability of space in the ring. | |
1103 | **/ | |
dea3101e | 1104 | static void |
2e0fef85 | 1105 | lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 1106 | { |
1107 | int ringno = pring->ringno; | |
1108 | ||
1109 | pring->flag |= LPFC_CALL_RING_AVAILABLE; | |
1110 | ||
1111 | wmb(); | |
1112 | ||
1113 | /* | |
1114 | * Set ring 'ringno' to SET R0CE_REQ in Chip Att register. | |
1115 | * The HBA will tell us when an IOCB entry is available. | |
1116 | */ | |
1117 | writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr); | |
1118 | readl(phba->CAregaddr); /* flush */ | |
1119 | ||
1120 | pring->stats.iocb_cmd_full++; | |
1121 | } | |
1122 | ||
e59058c4 | 1123 | /** |
3621a710 | 1124 | * lpfc_sli_update_ring - Update chip attention register |
e59058c4 JS |
1125 | * @phba: Pointer to HBA context object. |
1126 | * @pring: Pointer to driver SLI ring object. | |
1127 | * | |
1128 | * This function updates the chip attention register bit for the | |
1129 | * given ring to inform HBA that there is more work to be done | |
1130 | * in this ring. The caller is not required to hold any lock. | |
1131 | **/ | |
dea3101e | 1132 | static void |
2e0fef85 | 1133 | lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 1134 | { |
1135 | int ringno = pring->ringno; | |
1136 | ||
1137 | /* | |
1138 | * Tell the HBA that there is work to do in this ring. | |
1139 | */ | |
34b02dcd JS |
1140 | if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) { |
1141 | wmb(); | |
1142 | writel(CA_R0ATT << (ringno * 4), phba->CAregaddr); | |
1143 | readl(phba->CAregaddr); /* flush */ | |
1144 | } | |
dea3101e | 1145 | } |
1146 | ||
e59058c4 | 1147 | /** |
3621a710 | 1148 | * lpfc_sli_resume_iocb - Process iocbs in the txq |
e59058c4 JS |
1149 | * @phba: Pointer to HBA context object. |
1150 | * @pring: Pointer to driver SLI ring object. | |
1151 | * | |
1152 | * This function is called with hbalock held to post pending iocbs | |
1153 | * in the txq to the firmware. This function is called when driver | |
1154 | * detects space available in the ring. | |
1155 | **/ | |
dea3101e | 1156 | static void |
2e0fef85 | 1157 | lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 1158 | { |
1159 | IOCB_t *iocb; | |
1160 | struct lpfc_iocbq *nextiocb; | |
1161 | ||
1162 | /* | |
1163 | * Check to see if: | |
1164 | * (a) there is anything on the txq to send | |
1165 | * (b) link is up | |
1166 | * (c) link attention events can be processed (fcp ring only) | |
1167 | * (d) IOCB processing is not blocked by the outstanding mbox command. | |
1168 | */ | |
1169 | if (pring->txq_cnt && | |
2e0fef85 | 1170 | lpfc_is_link_up(phba) && |
dea3101e | 1171 | (pring->ringno != phba->sli.fcp_ring || |
0b727fea | 1172 | phba->sli.sli_flag & LPFC_PROCESS_LA)) { |
dea3101e | 1173 | |
1174 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && | |
1175 | (nextiocb = lpfc_sli_ringtx_get(phba, pring))) | |
1176 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
1177 | ||
1178 | if (iocb) | |
1179 | lpfc_sli_update_ring(phba, pring); | |
1180 | else | |
1181 | lpfc_sli_update_full_ring(phba, pring); | |
1182 | } | |
1183 | ||
1184 | return; | |
1185 | } | |
1186 | ||
e59058c4 | 1187 | /** |
3621a710 | 1188 | * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ |
e59058c4 JS |
1189 | * @phba: Pointer to HBA context object. |
1190 | * @hbqno: HBQ number. | |
1191 | * | |
1192 | * This function is called with hbalock held to get the next | |
1193 | * available slot for the given HBQ. If there is free slot | |
1194 | * available for the HBQ it will return pointer to the next available | |
1195 | * HBQ entry else it will return NULL. | |
1196 | **/ | |
a6ababd2 | 1197 | static struct lpfc_hbq_entry * |
ed957684 JS |
1198 | lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno) |
1199 | { | |
1200 | struct hbq_s *hbqp = &phba->hbqs[hbqno]; | |
1201 | ||
1202 | if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx && | |
1203 | ++hbqp->next_hbqPutIdx >= hbqp->entry_count) | |
1204 | hbqp->next_hbqPutIdx = 0; | |
1205 | ||
1206 | if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) { | |
92d7f7b0 | 1207 | uint32_t raw_index = phba->hbq_get[hbqno]; |
ed957684 JS |
1208 | uint32_t getidx = le32_to_cpu(raw_index); |
1209 | ||
1210 | hbqp->local_hbqGetIdx = getidx; | |
1211 | ||
1212 | if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) { | |
1213 | lpfc_printf_log(phba, KERN_ERR, | |
92d7f7b0 | 1214 | LOG_SLI | LOG_VPORT, |
e8b62011 | 1215 | "1802 HBQ %d: local_hbqGetIdx " |
ed957684 | 1216 | "%u is > than hbqp->entry_count %u\n", |
e8b62011 | 1217 | hbqno, hbqp->local_hbqGetIdx, |
ed957684 JS |
1218 | hbqp->entry_count); |
1219 | ||
1220 | phba->link_state = LPFC_HBA_ERROR; | |
1221 | return NULL; | |
1222 | } | |
1223 | ||
1224 | if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx) | |
1225 | return NULL; | |
1226 | } | |
1227 | ||
51ef4c26 JS |
1228 | return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt + |
1229 | hbqp->hbqPutIdx; | |
ed957684 JS |
1230 | } |
1231 | ||
e59058c4 | 1232 | /** |
3621a710 | 1233 | * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers |
e59058c4 JS |
1234 | * @phba: Pointer to HBA context object. |
1235 | * | |
1236 | * This function is called with no lock held to free all the | |
1237 | * hbq buffers while uninitializing the SLI interface. It also | |
1238 | * frees the HBQ buffers returned by the firmware but not yet | |
1239 | * processed by the upper layers. | |
1240 | **/ | |
ed957684 JS |
1241 | void |
1242 | lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba) | |
1243 | { | |
92d7f7b0 JS |
1244 | struct lpfc_dmabuf *dmabuf, *next_dmabuf; |
1245 | struct hbq_dmabuf *hbq_buf; | |
3163f725 | 1246 | unsigned long flags; |
51ef4c26 | 1247 | int i, hbq_count; |
3163f725 | 1248 | uint32_t hbqno; |
ed957684 | 1249 | |
51ef4c26 | 1250 | hbq_count = lpfc_sli_hbq_count(); |
ed957684 | 1251 | /* Return all memory used by all HBQs */ |
3163f725 | 1252 | spin_lock_irqsave(&phba->hbalock, flags); |
51ef4c26 JS |
1253 | for (i = 0; i < hbq_count; ++i) { |
1254 | list_for_each_entry_safe(dmabuf, next_dmabuf, | |
1255 | &phba->hbqs[i].hbq_buffer_list, list) { | |
1256 | hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); | |
1257 | list_del(&hbq_buf->dbuf.list); | |
1258 | (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf); | |
1259 | } | |
a8adb832 | 1260 | phba->hbqs[i].buffer_count = 0; |
ed957684 | 1261 | } |
3163f725 | 1262 | /* Return all HBQ buffer that are in-fly */ |
3772a991 JS |
1263 | list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list, |
1264 | list) { | |
3163f725 JS |
1265 | hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); |
1266 | list_del(&hbq_buf->dbuf.list); | |
1267 | if (hbq_buf->tag == -1) { | |
1268 | (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) | |
1269 | (phba, hbq_buf); | |
1270 | } else { | |
1271 | hbqno = hbq_buf->tag >> 16; | |
1272 | if (hbqno >= LPFC_MAX_HBQS) | |
1273 | (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) | |
1274 | (phba, hbq_buf); | |
1275 | else | |
1276 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, | |
1277 | hbq_buf); | |
1278 | } | |
1279 | } | |
1280 | ||
1281 | /* Mark the HBQs not in use */ | |
1282 | phba->hbq_in_use = 0; | |
1283 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
ed957684 JS |
1284 | } |
1285 | ||
e59058c4 | 1286 | /** |
3621a710 | 1287 | * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware |
e59058c4 JS |
1288 | * @phba: Pointer to HBA context object. |
1289 | * @hbqno: HBQ number. | |
1290 | * @hbq_buf: Pointer to HBQ buffer. | |
1291 | * | |
1292 | * This function is called with the hbalock held to post a | |
1293 | * hbq buffer to the firmware. If the function finds an empty | |
1294 | * slot in the HBQ, it will post the buffer. The function will return | |
1295 | * pointer to the hbq entry if it successfully post the buffer | |
1296 | * else it will return NULL. | |
1297 | **/ | |
3772a991 | 1298 | static int |
ed957684 | 1299 | lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno, |
92d7f7b0 | 1300 | struct hbq_dmabuf *hbq_buf) |
3772a991 JS |
1301 | { |
1302 | return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf); | |
1303 | } | |
1304 | ||
1305 | /** | |
1306 | * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware | |
1307 | * @phba: Pointer to HBA context object. | |
1308 | * @hbqno: HBQ number. | |
1309 | * @hbq_buf: Pointer to HBQ buffer. | |
1310 | * | |
1311 | * This function is called with the hbalock held to post a hbq buffer to the | |
1312 | * firmware. If the function finds an empty slot in the HBQ, it will post the | |
1313 | * buffer and place it on the hbq_buffer_list. The function will return zero if | |
1314 | * it successfully post the buffer else it will return an error. | |
1315 | **/ | |
1316 | static int | |
1317 | lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno, | |
1318 | struct hbq_dmabuf *hbq_buf) | |
ed957684 JS |
1319 | { |
1320 | struct lpfc_hbq_entry *hbqe; | |
92d7f7b0 | 1321 | dma_addr_t physaddr = hbq_buf->dbuf.phys; |
ed957684 JS |
1322 | |
1323 | /* Get next HBQ entry slot to use */ | |
1324 | hbqe = lpfc_sli_next_hbq_slot(phba, hbqno); | |
1325 | if (hbqe) { | |
1326 | struct hbq_s *hbqp = &phba->hbqs[hbqno]; | |
1327 | ||
92d7f7b0 JS |
1328 | hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); |
1329 | hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr)); | |
51ef4c26 | 1330 | hbqe->bde.tus.f.bdeSize = hbq_buf->size; |
ed957684 | 1331 | hbqe->bde.tus.f.bdeFlags = 0; |
92d7f7b0 JS |
1332 | hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w); |
1333 | hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag); | |
1334 | /* Sync SLIM */ | |
ed957684 JS |
1335 | hbqp->hbqPutIdx = hbqp->next_hbqPutIdx; |
1336 | writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno); | |
92d7f7b0 | 1337 | /* flush */ |
ed957684 | 1338 | readl(phba->hbq_put + hbqno); |
51ef4c26 | 1339 | list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list); |
3772a991 JS |
1340 | return 0; |
1341 | } else | |
1342 | return -ENOMEM; | |
ed957684 JS |
1343 | } |
1344 | ||
4f774513 JS |
1345 | /** |
1346 | * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware | |
1347 | * @phba: Pointer to HBA context object. | |
1348 | * @hbqno: HBQ number. | |
1349 | * @hbq_buf: Pointer to HBQ buffer. | |
1350 | * | |
1351 | * This function is called with the hbalock held to post an RQE to the SLI4 | |
1352 | * firmware. If able to post the RQE to the RQ it will queue the hbq entry to | |
1353 | * the hbq_buffer_list and return zero, otherwise it will return an error. | |
1354 | **/ | |
1355 | static int | |
1356 | lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno, | |
1357 | struct hbq_dmabuf *hbq_buf) | |
1358 | { | |
1359 | int rc; | |
1360 | struct lpfc_rqe hrqe; | |
1361 | struct lpfc_rqe drqe; | |
1362 | ||
1363 | hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys); | |
1364 | hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys); | |
1365 | drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys); | |
1366 | drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys); | |
1367 | rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, | |
1368 | &hrqe, &drqe); | |
1369 | if (rc < 0) | |
1370 | return rc; | |
1371 | hbq_buf->tag = rc; | |
1372 | list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list); | |
1373 | return 0; | |
1374 | } | |
1375 | ||
e59058c4 | 1376 | /* HBQ for ELS and CT traffic. */ |
92d7f7b0 JS |
1377 | static struct lpfc_hbq_init lpfc_els_hbq = { |
1378 | .rn = 1, | |
def9c7a9 | 1379 | .entry_count = 256, |
92d7f7b0 JS |
1380 | .mask_count = 0, |
1381 | .profile = 0, | |
51ef4c26 | 1382 | .ring_mask = (1 << LPFC_ELS_RING), |
92d7f7b0 | 1383 | .buffer_count = 0, |
a257bf90 JS |
1384 | .init_count = 40, |
1385 | .add_count = 40, | |
92d7f7b0 | 1386 | }; |
ed957684 | 1387 | |
e59058c4 | 1388 | /* HBQ for the extra ring if needed */ |
51ef4c26 JS |
1389 | static struct lpfc_hbq_init lpfc_extra_hbq = { |
1390 | .rn = 1, | |
1391 | .entry_count = 200, | |
1392 | .mask_count = 0, | |
1393 | .profile = 0, | |
1394 | .ring_mask = (1 << LPFC_EXTRA_RING), | |
1395 | .buffer_count = 0, | |
1396 | .init_count = 0, | |
1397 | .add_count = 5, | |
1398 | }; | |
1399 | ||
e59058c4 | 1400 | /* Array of HBQs */ |
78b2d852 | 1401 | struct lpfc_hbq_init *lpfc_hbq_defs[] = { |
92d7f7b0 | 1402 | &lpfc_els_hbq, |
51ef4c26 | 1403 | &lpfc_extra_hbq, |
92d7f7b0 | 1404 | }; |
ed957684 | 1405 | |
e59058c4 | 1406 | /** |
3621a710 | 1407 | * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ |
e59058c4 JS |
1408 | * @phba: Pointer to HBA context object. |
1409 | * @hbqno: HBQ number. | |
1410 | * @count: Number of HBQ buffers to be posted. | |
1411 | * | |
d7c255b2 JS |
1412 | * This function is called with no lock held to post more hbq buffers to the |
1413 | * given HBQ. The function returns the number of HBQ buffers successfully | |
1414 | * posted. | |
e59058c4 | 1415 | **/ |
311464ec | 1416 | static int |
92d7f7b0 | 1417 | lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count) |
ed957684 | 1418 | { |
d7c255b2 | 1419 | uint32_t i, posted = 0; |
3163f725 | 1420 | unsigned long flags; |
92d7f7b0 | 1421 | struct hbq_dmabuf *hbq_buffer; |
d7c255b2 | 1422 | LIST_HEAD(hbq_buf_list); |
eafe1df9 | 1423 | if (!phba->hbqs[hbqno].hbq_alloc_buffer) |
51ef4c26 | 1424 | return 0; |
51ef4c26 | 1425 | |
d7c255b2 JS |
1426 | if ((phba->hbqs[hbqno].buffer_count + count) > |
1427 | lpfc_hbq_defs[hbqno]->entry_count) | |
1428 | count = lpfc_hbq_defs[hbqno]->entry_count - | |
1429 | phba->hbqs[hbqno].buffer_count; | |
1430 | if (!count) | |
1431 | return 0; | |
1432 | /* Allocate HBQ entries */ | |
1433 | for (i = 0; i < count; i++) { | |
1434 | hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba); | |
1435 | if (!hbq_buffer) | |
1436 | break; | |
1437 | list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list); | |
1438 | } | |
3163f725 JS |
1439 | /* Check whether HBQ is still in use */ |
1440 | spin_lock_irqsave(&phba->hbalock, flags); | |
eafe1df9 | 1441 | if (!phba->hbq_in_use) |
d7c255b2 JS |
1442 | goto err; |
1443 | while (!list_empty(&hbq_buf_list)) { | |
1444 | list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf, | |
1445 | dbuf.list); | |
1446 | hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count | | |
1447 | (hbqno << 16)); | |
3772a991 | 1448 | if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) { |
a8adb832 | 1449 | phba->hbqs[hbqno].buffer_count++; |
d7c255b2 JS |
1450 | posted++; |
1451 | } else | |
51ef4c26 | 1452 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); |
ed957684 | 1453 | } |
3163f725 | 1454 | spin_unlock_irqrestore(&phba->hbalock, flags); |
d7c255b2 JS |
1455 | return posted; |
1456 | err: | |
eafe1df9 | 1457 | spin_unlock_irqrestore(&phba->hbalock, flags); |
d7c255b2 JS |
1458 | while (!list_empty(&hbq_buf_list)) { |
1459 | list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf, | |
1460 | dbuf.list); | |
1461 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); | |
1462 | } | |
1463 | return 0; | |
ed957684 JS |
1464 | } |
1465 | ||
e59058c4 | 1466 | /** |
3621a710 | 1467 | * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware |
e59058c4 JS |
1468 | * @phba: Pointer to HBA context object. |
1469 | * @qno: HBQ number. | |
1470 | * | |
1471 | * This function posts more buffers to the HBQ. This function | |
d7c255b2 JS |
1472 | * is called with no lock held. The function returns the number of HBQ entries |
1473 | * successfully allocated. | |
e59058c4 | 1474 | **/ |
92d7f7b0 JS |
1475 | int |
1476 | lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno) | |
ed957684 | 1477 | { |
def9c7a9 JS |
1478 | if (phba->sli_rev == LPFC_SLI_REV4) |
1479 | return 0; | |
1480 | else | |
1481 | return lpfc_sli_hbqbuf_fill_hbqs(phba, qno, | |
1482 | lpfc_hbq_defs[qno]->add_count); | |
92d7f7b0 | 1483 | } |
ed957684 | 1484 | |
e59058c4 | 1485 | /** |
3621a710 | 1486 | * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ |
e59058c4 JS |
1487 | * @phba: Pointer to HBA context object. |
1488 | * @qno: HBQ queue number. | |
1489 | * | |
1490 | * This function is called from SLI initialization code path with | |
1491 | * no lock held to post initial HBQ buffers to firmware. The | |
d7c255b2 | 1492 | * function returns the number of HBQ entries successfully allocated. |
e59058c4 | 1493 | **/ |
a6ababd2 | 1494 | static int |
92d7f7b0 JS |
1495 | lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno) |
1496 | { | |
def9c7a9 JS |
1497 | if (phba->sli_rev == LPFC_SLI_REV4) |
1498 | return lpfc_sli_hbqbuf_fill_hbqs(phba, qno, | |
1499 | lpfc_hbq_defs[qno]->entry_count); | |
1500 | else | |
1501 | return lpfc_sli_hbqbuf_fill_hbqs(phba, qno, | |
1502 | lpfc_hbq_defs[qno]->init_count); | |
ed957684 JS |
1503 | } |
1504 | ||
3772a991 JS |
1505 | /** |
1506 | * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list | |
1507 | * @phba: Pointer to HBA context object. | |
1508 | * @hbqno: HBQ number. | |
1509 | * | |
1510 | * This function removes the first hbq buffer on an hbq list and returns a | |
1511 | * pointer to that buffer. If it finds no buffers on the list it returns NULL. | |
1512 | **/ | |
1513 | static struct hbq_dmabuf * | |
1514 | lpfc_sli_hbqbuf_get(struct list_head *rb_list) | |
1515 | { | |
1516 | struct lpfc_dmabuf *d_buf; | |
1517 | ||
1518 | list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list); | |
1519 | if (!d_buf) | |
1520 | return NULL; | |
1521 | return container_of(d_buf, struct hbq_dmabuf, dbuf); | |
1522 | } | |
1523 | ||
e59058c4 | 1524 | /** |
3621a710 | 1525 | * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag |
e59058c4 JS |
1526 | * @phba: Pointer to HBA context object. |
1527 | * @tag: Tag of the hbq buffer. | |
1528 | * | |
1529 | * This function is called with hbalock held. This function searches | |
1530 | * for the hbq buffer associated with the given tag in the hbq buffer | |
1531 | * list. If it finds the hbq buffer, it returns the hbq_buffer other wise | |
1532 | * it returns NULL. | |
1533 | **/ | |
a6ababd2 | 1534 | static struct hbq_dmabuf * |
92d7f7b0 | 1535 | lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag) |
ed957684 | 1536 | { |
92d7f7b0 JS |
1537 | struct lpfc_dmabuf *d_buf; |
1538 | struct hbq_dmabuf *hbq_buf; | |
51ef4c26 JS |
1539 | uint32_t hbqno; |
1540 | ||
1541 | hbqno = tag >> 16; | |
a0a74e45 | 1542 | if (hbqno >= LPFC_MAX_HBQS) |
51ef4c26 | 1543 | return NULL; |
ed957684 | 1544 | |
3772a991 | 1545 | spin_lock_irq(&phba->hbalock); |
51ef4c26 | 1546 | list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) { |
92d7f7b0 | 1547 | hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); |
51ef4c26 | 1548 | if (hbq_buf->tag == tag) { |
3772a991 | 1549 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 | 1550 | return hbq_buf; |
ed957684 JS |
1551 | } |
1552 | } | |
3772a991 | 1553 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 | 1554 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT, |
e8b62011 | 1555 | "1803 Bad hbq tag. Data: x%x x%x\n", |
a8adb832 | 1556 | tag, phba->hbqs[tag >> 16].buffer_count); |
92d7f7b0 | 1557 | return NULL; |
ed957684 JS |
1558 | } |
1559 | ||
e59058c4 | 1560 | /** |
3621a710 | 1561 | * lpfc_sli_free_hbq - Give back the hbq buffer to firmware |
e59058c4 JS |
1562 | * @phba: Pointer to HBA context object. |
1563 | * @hbq_buffer: Pointer to HBQ buffer. | |
1564 | * | |
1565 | * This function is called with hbalock. This function gives back | |
1566 | * the hbq buffer to firmware. If the HBQ does not have space to | |
1567 | * post the buffer, it will free the buffer. | |
1568 | **/ | |
ed957684 | 1569 | void |
51ef4c26 | 1570 | lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer) |
ed957684 JS |
1571 | { |
1572 | uint32_t hbqno; | |
1573 | ||
51ef4c26 JS |
1574 | if (hbq_buffer) { |
1575 | hbqno = hbq_buffer->tag >> 16; | |
3772a991 | 1576 | if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) |
51ef4c26 | 1577 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); |
ed957684 JS |
1578 | } |
1579 | } | |
1580 | ||
e59058c4 | 1581 | /** |
3621a710 | 1582 | * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox |
e59058c4 JS |
1583 | * @mbxCommand: mailbox command code. |
1584 | * | |
1585 | * This function is called by the mailbox event handler function to verify | |
1586 | * that the completed mailbox command is a legitimate mailbox command. If the | |
1587 | * completed mailbox is not known to the function, it will return MBX_SHUTDOWN | |
1588 | * and the mailbox event handler will take the HBA offline. | |
1589 | **/ | |
dea3101e | 1590 | static int |
1591 | lpfc_sli_chk_mbx_command(uint8_t mbxCommand) | |
1592 | { | |
1593 | uint8_t ret; | |
1594 | ||
1595 | switch (mbxCommand) { | |
1596 | case MBX_LOAD_SM: | |
1597 | case MBX_READ_NV: | |
1598 | case MBX_WRITE_NV: | |
a8adb832 | 1599 | case MBX_WRITE_VPARMS: |
dea3101e | 1600 | case MBX_RUN_BIU_DIAG: |
1601 | case MBX_INIT_LINK: | |
1602 | case MBX_DOWN_LINK: | |
1603 | case MBX_CONFIG_LINK: | |
1604 | case MBX_CONFIG_RING: | |
1605 | case MBX_RESET_RING: | |
1606 | case MBX_READ_CONFIG: | |
1607 | case MBX_READ_RCONFIG: | |
1608 | case MBX_READ_SPARM: | |
1609 | case MBX_READ_STATUS: | |
1610 | case MBX_READ_RPI: | |
1611 | case MBX_READ_XRI: | |
1612 | case MBX_READ_REV: | |
1613 | case MBX_READ_LNK_STAT: | |
1614 | case MBX_REG_LOGIN: | |
1615 | case MBX_UNREG_LOGIN: | |
1616 | case MBX_READ_LA: | |
1617 | case MBX_CLEAR_LA: | |
1618 | case MBX_DUMP_MEMORY: | |
1619 | case MBX_DUMP_CONTEXT: | |
1620 | case MBX_RUN_DIAGS: | |
1621 | case MBX_RESTART: | |
1622 | case MBX_UPDATE_CFG: | |
1623 | case MBX_DOWN_LOAD: | |
1624 | case MBX_DEL_LD_ENTRY: | |
1625 | case MBX_RUN_PROGRAM: | |
1626 | case MBX_SET_MASK: | |
09372820 | 1627 | case MBX_SET_VARIABLE: |
dea3101e | 1628 | case MBX_UNREG_D_ID: |
41415862 | 1629 | case MBX_KILL_BOARD: |
dea3101e | 1630 | case MBX_CONFIG_FARP: |
41415862 | 1631 | case MBX_BEACON: |
dea3101e | 1632 | case MBX_LOAD_AREA: |
1633 | case MBX_RUN_BIU_DIAG64: | |
1634 | case MBX_CONFIG_PORT: | |
1635 | case MBX_READ_SPARM64: | |
1636 | case MBX_READ_RPI64: | |
1637 | case MBX_REG_LOGIN64: | |
1638 | case MBX_READ_LA64: | |
09372820 | 1639 | case MBX_WRITE_WWN: |
dea3101e | 1640 | case MBX_SET_DEBUG: |
1641 | case MBX_LOAD_EXP_ROM: | |
57127f15 | 1642 | case MBX_ASYNCEVT_ENABLE: |
92d7f7b0 JS |
1643 | case MBX_REG_VPI: |
1644 | case MBX_UNREG_VPI: | |
858c9f6c | 1645 | case MBX_HEARTBEAT: |
84774a4d JS |
1646 | case MBX_PORT_CAPABILITIES: |
1647 | case MBX_PORT_IOV_CONTROL: | |
04c68496 JS |
1648 | case MBX_SLI4_CONFIG: |
1649 | case MBX_SLI4_REQ_FTRS: | |
1650 | case MBX_REG_FCFI: | |
1651 | case MBX_UNREG_FCFI: | |
1652 | case MBX_REG_VFI: | |
1653 | case MBX_UNREG_VFI: | |
1654 | case MBX_INIT_VPI: | |
1655 | case MBX_INIT_VFI: | |
1656 | case MBX_RESUME_RPI: | |
dea3101e | 1657 | ret = mbxCommand; |
1658 | break; | |
1659 | default: | |
1660 | ret = MBX_SHUTDOWN; | |
1661 | break; | |
1662 | } | |
2e0fef85 | 1663 | return ret; |
dea3101e | 1664 | } |
e59058c4 JS |
1665 | |
1666 | /** | |
3621a710 | 1667 | * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler |
e59058c4 JS |
1668 | * @phba: Pointer to HBA context object. |
1669 | * @pmboxq: Pointer to mailbox command. | |
1670 | * | |
1671 | * This is completion handler function for mailbox commands issued from | |
1672 | * lpfc_sli_issue_mbox_wait function. This function is called by the | |
1673 | * mailbox event handler function with no lock held. This function | |
1674 | * will wake up thread waiting on the wait queue pointed by context1 | |
1675 | * of the mailbox. | |
1676 | **/ | |
04c68496 | 1677 | void |
2e0fef85 | 1678 | lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
dea3101e | 1679 | { |
1680 | wait_queue_head_t *pdone_q; | |
858c9f6c | 1681 | unsigned long drvr_flag; |
dea3101e | 1682 | |
1683 | /* | |
1684 | * If pdone_q is empty, the driver thread gave up waiting and | |
1685 | * continued running. | |
1686 | */ | |
7054a606 | 1687 | pmboxq->mbox_flag |= LPFC_MBX_WAKE; |
858c9f6c | 1688 | spin_lock_irqsave(&phba->hbalock, drvr_flag); |
dea3101e | 1689 | pdone_q = (wait_queue_head_t *) pmboxq->context1; |
1690 | if (pdone_q) | |
1691 | wake_up_interruptible(pdone_q); | |
858c9f6c | 1692 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 1693 | return; |
1694 | } | |
1695 | ||
e59058c4 JS |
1696 | |
1697 | /** | |
3621a710 | 1698 | * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler |
e59058c4 JS |
1699 | * @phba: Pointer to HBA context object. |
1700 | * @pmb: Pointer to mailbox object. | |
1701 | * | |
1702 | * This function is the default mailbox completion handler. It | |
1703 | * frees the memory resources associated with the completed mailbox | |
1704 | * command. If the completed command is a REG_LOGIN mailbox command, | |
1705 | * this function will issue a UREG_LOGIN to re-claim the RPI. | |
1706 | **/ | |
dea3101e | 1707 | void |
2e0fef85 | 1708 | lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
dea3101e | 1709 | { |
1710 | struct lpfc_dmabuf *mp; | |
04c68496 | 1711 | uint16_t rpi, vpi; |
7054a606 | 1712 | int rc; |
695a814e | 1713 | struct lpfc_vport *vport = pmb->vport; |
7054a606 | 1714 | |
dea3101e | 1715 | mp = (struct lpfc_dmabuf *) (pmb->context1); |
7054a606 | 1716 | |
dea3101e | 1717 | if (mp) { |
1718 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
1719 | kfree(mp); | |
1720 | } | |
7054a606 | 1721 | |
04c68496 JS |
1722 | if ((pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) && |
1723 | (phba->sli_rev == LPFC_SLI_REV4)) | |
1724 | lpfc_sli4_free_rpi(phba, pmb->u.mb.un.varUnregLogin.rpi); | |
1725 | ||
7054a606 JS |
1726 | /* |
1727 | * If a REG_LOGIN succeeded after node is destroyed or node | |
1728 | * is in re-discovery driver need to cleanup the RPI. | |
1729 | */ | |
2e0fef85 | 1730 | if (!(phba->pport->load_flag & FC_UNLOADING) && |
04c68496 JS |
1731 | pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 && |
1732 | !pmb->u.mb.mbxStatus) { | |
1733 | rpi = pmb->u.mb.un.varWords[0]; | |
1734 | vpi = pmb->u.mb.un.varRegLogin.vpi - phba->vpi_base; | |
1735 | lpfc_unreg_login(phba, vpi, rpi, pmb); | |
92d7f7b0 | 1736 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
7054a606 JS |
1737 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
1738 | if (rc != MBX_NOT_FINISHED) | |
1739 | return; | |
1740 | } | |
1741 | ||
695a814e JS |
1742 | /* Unreg VPI, if the REG_VPI succeed after VLink failure */ |
1743 | if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) && | |
1744 | !(phba->pport->load_flag & FC_UNLOADING) && | |
1745 | !pmb->u.mb.mbxStatus) { | |
1746 | lpfc_unreg_vpi(phba, pmb->u.mb.un.varRegVpi.vpi, pmb); | |
1747 | pmb->vport = vport; | |
1748 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
1749 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
1750 | if (rc != MBX_NOT_FINISHED) | |
1751 | return; | |
1752 | } | |
1753 | ||
04c68496 JS |
1754 | if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG) |
1755 | lpfc_sli4_mbox_cmd_free(phba, pmb); | |
1756 | else | |
1757 | mempool_free(pmb, phba->mbox_mem_pool); | |
dea3101e | 1758 | } |
1759 | ||
e59058c4 | 1760 | /** |
3621a710 | 1761 | * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware |
e59058c4 JS |
1762 | * @phba: Pointer to HBA context object. |
1763 | * | |
1764 | * This function is called with no lock held. This function processes all | |
1765 | * the completed mailbox commands and gives it to upper layers. The interrupt | |
1766 | * service routine processes mailbox completion interrupt and adds completed | |
1767 | * mailbox commands to the mboxq_cmpl queue and signals the worker thread. | |
1768 | * Worker thread call lpfc_sli_handle_mb_event, which will return the | |
1769 | * completed mailbox commands in mboxq_cmpl queue to the upper layers. This | |
1770 | * function returns the mailbox commands to the upper layer by calling the | |
1771 | * completion handler function of each mailbox. | |
1772 | **/ | |
dea3101e | 1773 | int |
2e0fef85 | 1774 | lpfc_sli_handle_mb_event(struct lpfc_hba *phba) |
dea3101e | 1775 | { |
92d7f7b0 | 1776 | MAILBOX_t *pmbox; |
dea3101e | 1777 | LPFC_MBOXQ_t *pmb; |
92d7f7b0 JS |
1778 | int rc; |
1779 | LIST_HEAD(cmplq); | |
dea3101e | 1780 | |
1781 | phba->sli.slistat.mbox_event++; | |
1782 | ||
92d7f7b0 JS |
1783 | /* Get all completed mailboxe buffers into the cmplq */ |
1784 | spin_lock_irq(&phba->hbalock); | |
1785 | list_splice_init(&phba->sli.mboxq_cmpl, &cmplq); | |
1786 | spin_unlock_irq(&phba->hbalock); | |
dea3101e | 1787 | |
92d7f7b0 JS |
1788 | /* Get a Mailbox buffer to setup mailbox commands for callback */ |
1789 | do { | |
1790 | list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list); | |
1791 | if (pmb == NULL) | |
1792 | break; | |
2e0fef85 | 1793 | |
04c68496 | 1794 | pmbox = &pmb->u.mb; |
dea3101e | 1795 | |
858c9f6c JS |
1796 | if (pmbox->mbxCommand != MBX_HEARTBEAT) { |
1797 | if (pmb->vport) { | |
1798 | lpfc_debugfs_disc_trc(pmb->vport, | |
1799 | LPFC_DISC_TRC_MBOX_VPORT, | |
1800 | "MBOX cmpl vport: cmd:x%x mb:x%x x%x", | |
1801 | (uint32_t)pmbox->mbxCommand, | |
1802 | pmbox->un.varWords[0], | |
1803 | pmbox->un.varWords[1]); | |
1804 | } | |
1805 | else { | |
1806 | lpfc_debugfs_disc_trc(phba->pport, | |
1807 | LPFC_DISC_TRC_MBOX, | |
1808 | "MBOX cmpl: cmd:x%x mb:x%x x%x", | |
1809 | (uint32_t)pmbox->mbxCommand, | |
1810 | pmbox->un.varWords[0], | |
1811 | pmbox->un.varWords[1]); | |
1812 | } | |
1813 | } | |
1814 | ||
dea3101e | 1815 | /* |
1816 | * It is a fatal error if unknown mbox command completion. | |
1817 | */ | |
1818 | if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) == | |
1819 | MBX_SHUTDOWN) { | |
af901ca1 | 1820 | /* Unknown mailbox command compl */ |
92d7f7b0 | 1821 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
e8b62011 | 1822 | "(%d):0323 Unknown Mailbox command " |
04c68496 | 1823 | "x%x (x%x) Cmpl\n", |
92d7f7b0 | 1824 | pmb->vport ? pmb->vport->vpi : 0, |
04c68496 JS |
1825 | pmbox->mbxCommand, |
1826 | lpfc_sli4_mbox_opcode_get(phba, pmb)); | |
2e0fef85 | 1827 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 1828 | phba->work_hs = HS_FFER3; |
1829 | lpfc_handle_eratt(phba); | |
92d7f7b0 | 1830 | continue; |
dea3101e | 1831 | } |
1832 | ||
dea3101e | 1833 | if (pmbox->mbxStatus) { |
1834 | phba->sli.slistat.mbox_stat_err++; | |
1835 | if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) { | |
1836 | /* Mbox cmd cmpl error - RETRYing */ | |
92d7f7b0 JS |
1837 | lpfc_printf_log(phba, KERN_INFO, |
1838 | LOG_MBOX | LOG_SLI, | |
e8b62011 | 1839 | "(%d):0305 Mbox cmd cmpl " |
92d7f7b0 | 1840 | "error - RETRYing Data: x%x " |
04c68496 | 1841 | "(x%x) x%x x%x x%x\n", |
92d7f7b0 JS |
1842 | pmb->vport ? pmb->vport->vpi :0, |
1843 | pmbox->mbxCommand, | |
04c68496 JS |
1844 | lpfc_sli4_mbox_opcode_get(phba, |
1845 | pmb), | |
92d7f7b0 JS |
1846 | pmbox->mbxStatus, |
1847 | pmbox->un.varWords[0], | |
1848 | pmb->vport->port_state); | |
dea3101e | 1849 | pmbox->mbxStatus = 0; |
1850 | pmbox->mbxOwner = OWN_HOST; | |
dea3101e | 1851 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
04c68496 | 1852 | if (rc != MBX_NOT_FINISHED) |
92d7f7b0 | 1853 | continue; |
dea3101e | 1854 | } |
1855 | } | |
1856 | ||
1857 | /* Mailbox cmd <cmd> Cmpl <cmpl> */ | |
92d7f7b0 | 1858 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
04c68496 | 1859 | "(%d):0307 Mailbox cmd x%x (x%x) Cmpl x%p " |
dea3101e | 1860 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n", |
92d7f7b0 | 1861 | pmb->vport ? pmb->vport->vpi : 0, |
dea3101e | 1862 | pmbox->mbxCommand, |
04c68496 | 1863 | lpfc_sli4_mbox_opcode_get(phba, pmb), |
dea3101e | 1864 | pmb->mbox_cmpl, |
1865 | *((uint32_t *) pmbox), | |
1866 | pmbox->un.varWords[0], | |
1867 | pmbox->un.varWords[1], | |
1868 | pmbox->un.varWords[2], | |
1869 | pmbox->un.varWords[3], | |
1870 | pmbox->un.varWords[4], | |
1871 | pmbox->un.varWords[5], | |
1872 | pmbox->un.varWords[6], | |
1873 | pmbox->un.varWords[7]); | |
1874 | ||
92d7f7b0 | 1875 | if (pmb->mbox_cmpl) |
dea3101e | 1876 | pmb->mbox_cmpl(phba,pmb); |
92d7f7b0 JS |
1877 | } while (1); |
1878 | return 0; | |
1879 | } | |
dea3101e | 1880 | |
e59058c4 | 1881 | /** |
3621a710 | 1882 | * lpfc_sli_get_buff - Get the buffer associated with the buffer tag |
e59058c4 JS |
1883 | * @phba: Pointer to HBA context object. |
1884 | * @pring: Pointer to driver SLI ring object. | |
1885 | * @tag: buffer tag. | |
1886 | * | |
1887 | * This function is called with no lock held. When QUE_BUFTAG_BIT bit | |
1888 | * is set in the tag the buffer is posted for a particular exchange, | |
1889 | * the function will return the buffer without replacing the buffer. | |
1890 | * If the buffer is for unsolicited ELS or CT traffic, this function | |
1891 | * returns the buffer and also posts another buffer to the firmware. | |
1892 | **/ | |
76bb24ef JS |
1893 | static struct lpfc_dmabuf * |
1894 | lpfc_sli_get_buff(struct lpfc_hba *phba, | |
9f1e1b50 JS |
1895 | struct lpfc_sli_ring *pring, |
1896 | uint32_t tag) | |
76bb24ef | 1897 | { |
9f1e1b50 JS |
1898 | struct hbq_dmabuf *hbq_entry; |
1899 | ||
76bb24ef JS |
1900 | if (tag & QUE_BUFTAG_BIT) |
1901 | return lpfc_sli_ring_taggedbuf_get(phba, pring, tag); | |
9f1e1b50 JS |
1902 | hbq_entry = lpfc_sli_hbqbuf_find(phba, tag); |
1903 | if (!hbq_entry) | |
1904 | return NULL; | |
1905 | return &hbq_entry->dbuf; | |
76bb24ef | 1906 | } |
57127f15 | 1907 | |
3772a991 JS |
1908 | /** |
1909 | * lpfc_complete_unsol_iocb - Complete an unsolicited sequence | |
1910 | * @phba: Pointer to HBA context object. | |
1911 | * @pring: Pointer to driver SLI ring object. | |
1912 | * @saveq: Pointer to the iocbq struct representing the sequence starting frame. | |
1913 | * @fch_r_ctl: the r_ctl for the first frame of the sequence. | |
1914 | * @fch_type: the type for the first frame of the sequence. | |
1915 | * | |
1916 | * This function is called with no lock held. This function uses the r_ctl and | |
1917 | * type of the received sequence to find the correct callback function to call | |
1918 | * to process the sequence. | |
1919 | **/ | |
1920 | static int | |
1921 | lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
1922 | struct lpfc_iocbq *saveq, uint32_t fch_r_ctl, | |
1923 | uint32_t fch_type) | |
1924 | { | |
1925 | int i; | |
1926 | ||
1927 | /* unSolicited Responses */ | |
1928 | if (pring->prt[0].profile) { | |
1929 | if (pring->prt[0].lpfc_sli_rcv_unsol_event) | |
1930 | (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring, | |
1931 | saveq); | |
1932 | return 1; | |
1933 | } | |
1934 | /* We must search, based on rctl / type | |
1935 | for the right routine */ | |
1936 | for (i = 0; i < pring->num_mask; i++) { | |
1937 | if ((pring->prt[i].rctl == fch_r_ctl) && | |
1938 | (pring->prt[i].type == fch_type)) { | |
1939 | if (pring->prt[i].lpfc_sli_rcv_unsol_event) | |
1940 | (pring->prt[i].lpfc_sli_rcv_unsol_event) | |
1941 | (phba, pring, saveq); | |
1942 | return 1; | |
1943 | } | |
1944 | } | |
1945 | return 0; | |
1946 | } | |
e59058c4 JS |
1947 | |
1948 | /** | |
3621a710 | 1949 | * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler |
e59058c4 JS |
1950 | * @phba: Pointer to HBA context object. |
1951 | * @pring: Pointer to driver SLI ring object. | |
1952 | * @saveq: Pointer to the unsolicited iocb. | |
1953 | * | |
1954 | * This function is called with no lock held by the ring event handler | |
1955 | * when there is an unsolicited iocb posted to the response ring by the | |
1956 | * firmware. This function gets the buffer associated with the iocbs | |
1957 | * and calls the event handler for the ring. This function handles both | |
1958 | * qring buffers and hbq buffers. | |
1959 | * When the function returns 1 the caller can free the iocb object otherwise | |
1960 | * upper layer functions will free the iocb objects. | |
1961 | **/ | |
dea3101e | 1962 | static int |
1963 | lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
1964 | struct lpfc_iocbq *saveq) | |
1965 | { | |
1966 | IOCB_t * irsp; | |
1967 | WORD5 * w5p; | |
1968 | uint32_t Rctl, Type; | |
3772a991 | 1969 | uint32_t match; |
76bb24ef | 1970 | struct lpfc_iocbq *iocbq; |
3163f725 | 1971 | struct lpfc_dmabuf *dmzbuf; |
dea3101e | 1972 | |
1973 | match = 0; | |
1974 | irsp = &(saveq->iocb); | |
57127f15 JS |
1975 | |
1976 | if (irsp->ulpCommand == CMD_ASYNC_STATUS) { | |
1977 | if (pring->lpfc_sli_rcv_async_status) | |
1978 | pring->lpfc_sli_rcv_async_status(phba, pring, saveq); | |
1979 | else | |
1980 | lpfc_printf_log(phba, | |
1981 | KERN_WARNING, | |
1982 | LOG_SLI, | |
1983 | "0316 Ring %d handler: unexpected " | |
1984 | "ASYNC_STATUS iocb received evt_code " | |
1985 | "0x%x\n", | |
1986 | pring->ringno, | |
1987 | irsp->un.asyncstat.evt_code); | |
1988 | return 1; | |
1989 | } | |
1990 | ||
3163f725 JS |
1991 | if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) && |
1992 | (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) { | |
1993 | if (irsp->ulpBdeCount > 0) { | |
1994 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1995 | irsp->un.ulpWord[3]); | |
1996 | lpfc_in_buf_free(phba, dmzbuf); | |
1997 | } | |
1998 | ||
1999 | if (irsp->ulpBdeCount > 1) { | |
2000 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
2001 | irsp->unsli3.sli3Words[3]); | |
2002 | lpfc_in_buf_free(phba, dmzbuf); | |
2003 | } | |
2004 | ||
2005 | if (irsp->ulpBdeCount > 2) { | |
2006 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
2007 | irsp->unsli3.sli3Words[7]); | |
2008 | lpfc_in_buf_free(phba, dmzbuf); | |
2009 | } | |
2010 | ||
2011 | return 1; | |
2012 | } | |
2013 | ||
92d7f7b0 | 2014 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
76bb24ef JS |
2015 | if (irsp->ulpBdeCount != 0) { |
2016 | saveq->context2 = lpfc_sli_get_buff(phba, pring, | |
2017 | irsp->un.ulpWord[3]); | |
2018 | if (!saveq->context2) | |
2019 | lpfc_printf_log(phba, | |
2020 | KERN_ERR, | |
2021 | LOG_SLI, | |
2022 | "0341 Ring %d Cannot find buffer for " | |
2023 | "an unsolicited iocb. tag 0x%x\n", | |
2024 | pring->ringno, | |
2025 | irsp->un.ulpWord[3]); | |
76bb24ef JS |
2026 | } |
2027 | if (irsp->ulpBdeCount == 2) { | |
2028 | saveq->context3 = lpfc_sli_get_buff(phba, pring, | |
2029 | irsp->unsli3.sli3Words[7]); | |
2030 | if (!saveq->context3) | |
2031 | lpfc_printf_log(phba, | |
2032 | KERN_ERR, | |
2033 | LOG_SLI, | |
2034 | "0342 Ring %d Cannot find buffer for an" | |
2035 | " unsolicited iocb. tag 0x%x\n", | |
2036 | pring->ringno, | |
2037 | irsp->unsli3.sli3Words[7]); | |
2038 | } | |
2039 | list_for_each_entry(iocbq, &saveq->list, list) { | |
76bb24ef | 2040 | irsp = &(iocbq->iocb); |
76bb24ef JS |
2041 | if (irsp->ulpBdeCount != 0) { |
2042 | iocbq->context2 = lpfc_sli_get_buff(phba, pring, | |
2043 | irsp->un.ulpWord[3]); | |
9c2face6 | 2044 | if (!iocbq->context2) |
76bb24ef JS |
2045 | lpfc_printf_log(phba, |
2046 | KERN_ERR, | |
2047 | LOG_SLI, | |
2048 | "0343 Ring %d Cannot find " | |
2049 | "buffer for an unsolicited iocb" | |
2050 | ". tag 0x%x\n", pring->ringno, | |
92d7f7b0 | 2051 | irsp->un.ulpWord[3]); |
76bb24ef JS |
2052 | } |
2053 | if (irsp->ulpBdeCount == 2) { | |
2054 | iocbq->context3 = lpfc_sli_get_buff(phba, pring, | |
51ef4c26 | 2055 | irsp->unsli3.sli3Words[7]); |
9c2face6 | 2056 | if (!iocbq->context3) |
76bb24ef JS |
2057 | lpfc_printf_log(phba, |
2058 | KERN_ERR, | |
2059 | LOG_SLI, | |
2060 | "0344 Ring %d Cannot find " | |
2061 | "buffer for an unsolicited " | |
2062 | "iocb. tag 0x%x\n", | |
2063 | pring->ringno, | |
2064 | irsp->unsli3.sli3Words[7]); | |
2065 | } | |
2066 | } | |
92d7f7b0 | 2067 | } |
9c2face6 JS |
2068 | if (irsp->ulpBdeCount != 0 && |
2069 | (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX || | |
2070 | irsp->ulpStatus == IOSTAT_INTERMED_RSP)) { | |
2071 | int found = 0; | |
2072 | ||
2073 | /* search continue save q for same XRI */ | |
2074 | list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) { | |
2075 | if (iocbq->iocb.ulpContext == saveq->iocb.ulpContext) { | |
2076 | list_add_tail(&saveq->list, &iocbq->list); | |
2077 | found = 1; | |
2078 | break; | |
2079 | } | |
2080 | } | |
2081 | if (!found) | |
2082 | list_add_tail(&saveq->clist, | |
2083 | &pring->iocb_continue_saveq); | |
2084 | if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) { | |
2085 | list_del_init(&iocbq->clist); | |
2086 | saveq = iocbq; | |
2087 | irsp = &(saveq->iocb); | |
2088 | } else | |
2089 | return 0; | |
2090 | } | |
2091 | if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) || | |
2092 | (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) || | |
2093 | (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) { | |
6a9c52cf JS |
2094 | Rctl = FC_RCTL_ELS_REQ; |
2095 | Type = FC_TYPE_ELS; | |
9c2face6 JS |
2096 | } else { |
2097 | w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]); | |
2098 | Rctl = w5p->hcsw.Rctl; | |
2099 | Type = w5p->hcsw.Type; | |
2100 | ||
2101 | /* Firmware Workaround */ | |
2102 | if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) && | |
2103 | (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX || | |
2104 | irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { | |
6a9c52cf JS |
2105 | Rctl = FC_RCTL_ELS_REQ; |
2106 | Type = FC_TYPE_ELS; | |
9c2face6 JS |
2107 | w5p->hcsw.Rctl = Rctl; |
2108 | w5p->hcsw.Type = Type; | |
2109 | } | |
2110 | } | |
92d7f7b0 | 2111 | |
3772a991 | 2112 | if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type)) |
92d7f7b0 | 2113 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 | 2114 | "0313 Ring %d handler: unexpected Rctl x%x " |
92d7f7b0 | 2115 | "Type x%x received\n", |
e8b62011 | 2116 | pring->ringno, Rctl, Type); |
3772a991 | 2117 | |
92d7f7b0 | 2118 | return 1; |
dea3101e | 2119 | } |
2120 | ||
e59058c4 | 2121 | /** |
3621a710 | 2122 | * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb |
e59058c4 JS |
2123 | * @phba: Pointer to HBA context object. |
2124 | * @pring: Pointer to driver SLI ring object. | |
2125 | * @prspiocb: Pointer to response iocb object. | |
2126 | * | |
2127 | * This function looks up the iocb_lookup table to get the command iocb | |
2128 | * corresponding to the given response iocb using the iotag of the | |
2129 | * response iocb. This function is called with the hbalock held. | |
2130 | * This function returns the command iocb object if it finds the command | |
2131 | * iocb else returns NULL. | |
2132 | **/ | |
dea3101e | 2133 | static struct lpfc_iocbq * |
2e0fef85 JS |
2134 | lpfc_sli_iocbq_lookup(struct lpfc_hba *phba, |
2135 | struct lpfc_sli_ring *pring, | |
2136 | struct lpfc_iocbq *prspiocb) | |
dea3101e | 2137 | { |
dea3101e | 2138 | struct lpfc_iocbq *cmd_iocb = NULL; |
2139 | uint16_t iotag; | |
2140 | ||
604a3e30 JB |
2141 | iotag = prspiocb->iocb.ulpIoTag; |
2142 | ||
2143 | if (iotag != 0 && iotag <= phba->sli.last_iotag) { | |
2144 | cmd_iocb = phba->sli.iocbq_lookup[iotag]; | |
92d7f7b0 | 2145 | list_del_init(&cmd_iocb->list); |
604a3e30 JB |
2146 | pring->txcmplq_cnt--; |
2147 | return cmd_iocb; | |
dea3101e | 2148 | } |
2149 | ||
dea3101e | 2150 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 2151 | "0317 iotag x%x is out off " |
604a3e30 | 2152 | "range: max iotag x%x wd0 x%x\n", |
e8b62011 | 2153 | iotag, phba->sli.last_iotag, |
604a3e30 | 2154 | *(((uint32_t *) &prspiocb->iocb) + 7)); |
dea3101e | 2155 | return NULL; |
2156 | } | |
2157 | ||
3772a991 JS |
2158 | /** |
2159 | * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag | |
2160 | * @phba: Pointer to HBA context object. | |
2161 | * @pring: Pointer to driver SLI ring object. | |
2162 | * @iotag: IOCB tag. | |
2163 | * | |
2164 | * This function looks up the iocb_lookup table to get the command iocb | |
2165 | * corresponding to the given iotag. This function is called with the | |
2166 | * hbalock held. | |
2167 | * This function returns the command iocb object if it finds the command | |
2168 | * iocb else returns NULL. | |
2169 | **/ | |
2170 | static struct lpfc_iocbq * | |
2171 | lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba, | |
2172 | struct lpfc_sli_ring *pring, uint16_t iotag) | |
2173 | { | |
2174 | struct lpfc_iocbq *cmd_iocb; | |
2175 | ||
2176 | if (iotag != 0 && iotag <= phba->sli.last_iotag) { | |
2177 | cmd_iocb = phba->sli.iocbq_lookup[iotag]; | |
2178 | list_del_init(&cmd_iocb->list); | |
2179 | pring->txcmplq_cnt--; | |
2180 | return cmd_iocb; | |
2181 | } | |
2182 | ||
2183 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2184 | "0372 iotag x%x is out off range: max iotag (x%x)\n", | |
2185 | iotag, phba->sli.last_iotag); | |
2186 | return NULL; | |
2187 | } | |
2188 | ||
e59058c4 | 2189 | /** |
3621a710 | 2190 | * lpfc_sli_process_sol_iocb - process solicited iocb completion |
e59058c4 JS |
2191 | * @phba: Pointer to HBA context object. |
2192 | * @pring: Pointer to driver SLI ring object. | |
2193 | * @saveq: Pointer to the response iocb to be processed. | |
2194 | * | |
2195 | * This function is called by the ring event handler for non-fcp | |
2196 | * rings when there is a new response iocb in the response ring. | |
2197 | * The caller is not required to hold any locks. This function | |
2198 | * gets the command iocb associated with the response iocb and | |
2199 | * calls the completion handler for the command iocb. If there | |
2200 | * is no completion handler, the function will free the resources | |
2201 | * associated with command iocb. If the response iocb is for | |
2202 | * an already aborted command iocb, the status of the completion | |
2203 | * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED. | |
2204 | * This function always returns 1. | |
2205 | **/ | |
dea3101e | 2206 | static int |
2e0fef85 | 2207 | lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
dea3101e | 2208 | struct lpfc_iocbq *saveq) |
2209 | { | |
2e0fef85 | 2210 | struct lpfc_iocbq *cmdiocbp; |
dea3101e | 2211 | int rc = 1; |
2212 | unsigned long iflag; | |
2213 | ||
2214 | /* Based on the iotag field, get the cmd IOCB from the txcmplq */ | |
2e0fef85 | 2215 | spin_lock_irqsave(&phba->hbalock, iflag); |
604a3e30 | 2216 | cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq); |
2e0fef85 JS |
2217 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
2218 | ||
dea3101e | 2219 | if (cmdiocbp) { |
2220 | if (cmdiocbp->iocb_cmpl) { | |
ea2151b4 JS |
2221 | /* |
2222 | * If an ELS command failed send an event to mgmt | |
2223 | * application. | |
2224 | */ | |
2225 | if (saveq->iocb.ulpStatus && | |
2226 | (pring->ringno == LPFC_ELS_RING) && | |
2227 | (cmdiocbp->iocb.ulpCommand == | |
2228 | CMD_ELS_REQUEST64_CR)) | |
2229 | lpfc_send_els_failure_event(phba, | |
2230 | cmdiocbp, saveq); | |
2231 | ||
dea3101e | 2232 | /* |
2233 | * Post all ELS completions to the worker thread. | |
2234 | * All other are passed to the completion callback. | |
2235 | */ | |
2236 | if (pring->ringno == LPFC_ELS_RING) { | |
341af102 JS |
2237 | if ((phba->sli_rev < LPFC_SLI_REV4) && |
2238 | (cmdiocbp->iocb_flag & | |
2239 | LPFC_DRIVER_ABORTED)) { | |
2240 | spin_lock_irqsave(&phba->hbalock, | |
2241 | iflag); | |
07951076 JS |
2242 | cmdiocbp->iocb_flag &= |
2243 | ~LPFC_DRIVER_ABORTED; | |
341af102 JS |
2244 | spin_unlock_irqrestore(&phba->hbalock, |
2245 | iflag); | |
07951076 JS |
2246 | saveq->iocb.ulpStatus = |
2247 | IOSTAT_LOCAL_REJECT; | |
2248 | saveq->iocb.un.ulpWord[4] = | |
2249 | IOERR_SLI_ABORTED; | |
0ff10d46 JS |
2250 | |
2251 | /* Firmware could still be in progress | |
2252 | * of DMAing payload, so don't free data | |
2253 | * buffer till after a hbeat. | |
2254 | */ | |
341af102 JS |
2255 | spin_lock_irqsave(&phba->hbalock, |
2256 | iflag); | |
0ff10d46 | 2257 | saveq->iocb_flag |= LPFC_DELAY_MEM_FREE; |
341af102 JS |
2258 | spin_unlock_irqrestore(&phba->hbalock, |
2259 | iflag); | |
2260 | } | |
2261 | if ((phba->sli_rev == LPFC_SLI_REV4) && | |
2262 | (saveq->iocb_flag & LPFC_EXCHANGE_BUSY)) { | |
2263 | /* Set cmdiocb flag for the exchange | |
2264 | * busy so sgl (xri) will not be | |
2265 | * released until the abort xri is | |
2266 | * received from hba, clear the | |
2267 | * LPFC_DRIVER_ABORTED bit in case | |
2268 | * it was driver initiated abort. | |
2269 | */ | |
2270 | spin_lock_irqsave(&phba->hbalock, | |
2271 | iflag); | |
2272 | cmdiocbp->iocb_flag &= | |
2273 | ~LPFC_DRIVER_ABORTED; | |
2274 | cmdiocbp->iocb_flag |= | |
2275 | LPFC_EXCHANGE_BUSY; | |
2276 | spin_unlock_irqrestore(&phba->hbalock, | |
2277 | iflag); | |
2278 | cmdiocbp->iocb.ulpStatus = | |
2279 | IOSTAT_LOCAL_REJECT; | |
2280 | cmdiocbp->iocb.un.ulpWord[4] = | |
2281 | IOERR_ABORT_REQUESTED; | |
2282 | /* | |
2283 | * For SLI4, irsiocb contains NO_XRI | |
2284 | * in sli_xritag, it shall not affect | |
2285 | * releasing sgl (xri) process. | |
2286 | */ | |
2287 | saveq->iocb.ulpStatus = | |
2288 | IOSTAT_LOCAL_REJECT; | |
2289 | saveq->iocb.un.ulpWord[4] = | |
2290 | IOERR_SLI_ABORTED; | |
2291 | spin_lock_irqsave(&phba->hbalock, | |
2292 | iflag); | |
2293 | saveq->iocb_flag |= LPFC_DELAY_MEM_FREE; | |
2294 | spin_unlock_irqrestore(&phba->hbalock, | |
2295 | iflag); | |
07951076 | 2296 | } |
dea3101e | 2297 | } |
2e0fef85 | 2298 | (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); |
604a3e30 JB |
2299 | } else |
2300 | lpfc_sli_release_iocbq(phba, cmdiocbp); | |
dea3101e | 2301 | } else { |
2302 | /* | |
2303 | * Unknown initiating command based on the response iotag. | |
2304 | * This could be the case on the ELS ring because of | |
2305 | * lpfc_els_abort(). | |
2306 | */ | |
2307 | if (pring->ringno != LPFC_ELS_RING) { | |
2308 | /* | |
2309 | * Ring <ringno> handler: unexpected completion IoTag | |
2310 | * <IoTag> | |
2311 | */ | |
a257bf90 | 2312 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 JS |
2313 | "0322 Ring %d handler: " |
2314 | "unexpected completion IoTag x%x " | |
2315 | "Data: x%x x%x x%x x%x\n", | |
2316 | pring->ringno, | |
2317 | saveq->iocb.ulpIoTag, | |
2318 | saveq->iocb.ulpStatus, | |
2319 | saveq->iocb.un.ulpWord[4], | |
2320 | saveq->iocb.ulpCommand, | |
2321 | saveq->iocb.ulpContext); | |
dea3101e | 2322 | } |
2323 | } | |
68876920 | 2324 | |
dea3101e | 2325 | return rc; |
2326 | } | |
2327 | ||
e59058c4 | 2328 | /** |
3621a710 | 2329 | * lpfc_sli_rsp_pointers_error - Response ring pointer error handler |
e59058c4 JS |
2330 | * @phba: Pointer to HBA context object. |
2331 | * @pring: Pointer to driver SLI ring object. | |
2332 | * | |
2333 | * This function is called from the iocb ring event handlers when | |
2334 | * put pointer is ahead of the get pointer for a ring. This function signal | |
2335 | * an error attention condition to the worker thread and the worker | |
2336 | * thread will transition the HBA to offline state. | |
2337 | **/ | |
2e0fef85 JS |
2338 | static void |
2339 | lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
875fbdfe | 2340 | { |
34b02dcd | 2341 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
875fbdfe | 2342 | /* |
025dfdaf | 2343 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger than |
875fbdfe JSEC |
2344 | * rsp ring <portRspMax> |
2345 | */ | |
2346 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 2347 | "0312 Ring %d handler: portRspPut %d " |
025dfdaf | 2348 | "is bigger than rsp ring %d\n", |
e8b62011 | 2349 | pring->ringno, le32_to_cpu(pgp->rspPutInx), |
875fbdfe JSEC |
2350 | pring->numRiocb); |
2351 | ||
2e0fef85 | 2352 | phba->link_state = LPFC_HBA_ERROR; |
875fbdfe JSEC |
2353 | |
2354 | /* | |
2355 | * All error attention handlers are posted to | |
2356 | * worker thread | |
2357 | */ | |
2358 | phba->work_ha |= HA_ERATT; | |
2359 | phba->work_hs = HS_FFER3; | |
92d7f7b0 | 2360 | |
5e9d9b82 | 2361 | lpfc_worker_wake_up(phba); |
875fbdfe JSEC |
2362 | |
2363 | return; | |
2364 | } | |
2365 | ||
9399627f | 2366 | /** |
3621a710 | 2367 | * lpfc_poll_eratt - Error attention polling timer timeout handler |
9399627f JS |
2368 | * @ptr: Pointer to address of HBA context object. |
2369 | * | |
2370 | * This function is invoked by the Error Attention polling timer when the | |
2371 | * timer times out. It will check the SLI Error Attention register for | |
2372 | * possible attention events. If so, it will post an Error Attention event | |
2373 | * and wake up worker thread to process it. Otherwise, it will set up the | |
2374 | * Error Attention polling timer for the next poll. | |
2375 | **/ | |
2376 | void lpfc_poll_eratt(unsigned long ptr) | |
2377 | { | |
2378 | struct lpfc_hba *phba; | |
2379 | uint32_t eratt = 0; | |
2380 | ||
2381 | phba = (struct lpfc_hba *)ptr; | |
2382 | ||
2383 | /* Check chip HA register for error event */ | |
2384 | eratt = lpfc_sli_check_eratt(phba); | |
2385 | ||
2386 | if (eratt) | |
2387 | /* Tell the worker thread there is work to do */ | |
2388 | lpfc_worker_wake_up(phba); | |
2389 | else | |
2390 | /* Restart the timer for next eratt poll */ | |
2391 | mod_timer(&phba->eratt_poll, jiffies + | |
2392 | HZ * LPFC_ERATT_POLL_INTERVAL); | |
2393 | return; | |
2394 | } | |
2395 | ||
875fbdfe | 2396 | |
e59058c4 | 2397 | /** |
3621a710 | 2398 | * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring |
e59058c4 JS |
2399 | * @phba: Pointer to HBA context object. |
2400 | * @pring: Pointer to driver SLI ring object. | |
2401 | * @mask: Host attention register mask for this ring. | |
2402 | * | |
2403 | * This function is called from the interrupt context when there is a ring | |
2404 | * event for the fcp ring. The caller does not hold any lock. | |
2405 | * The function processes each response iocb in the response ring until it | |
2406 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
2407 | * LE bit set. The function will call the completion handler of the command iocb | |
2408 | * if the response iocb indicates a completion for a command iocb or it is | |
2409 | * an abort completion. The function will call lpfc_sli_process_unsol_iocb | |
2410 | * function if this is an unsolicited iocb. | |
dea3101e | 2411 | * This routine presumes LPFC_FCP_RING handling and doesn't bother |
45ed1190 JS |
2412 | * to check it explicitly. |
2413 | */ | |
2414 | int | |
2e0fef85 JS |
2415 | lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba, |
2416 | struct lpfc_sli_ring *pring, uint32_t mask) | |
dea3101e | 2417 | { |
34b02dcd | 2418 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
dea3101e | 2419 | IOCB_t *irsp = NULL; |
87f6eaff | 2420 | IOCB_t *entry = NULL; |
dea3101e | 2421 | struct lpfc_iocbq *cmdiocbq = NULL; |
2422 | struct lpfc_iocbq rspiocbq; | |
dea3101e | 2423 | uint32_t status; |
2424 | uint32_t portRspPut, portRspMax; | |
2425 | int rc = 1; | |
2426 | lpfc_iocb_type type; | |
2427 | unsigned long iflag; | |
2428 | uint32_t rsp_cmpl = 0; | |
dea3101e | 2429 | |
2e0fef85 | 2430 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 2431 | pring->stats.iocb_event++; |
2432 | ||
dea3101e | 2433 | /* |
2434 | * The next available response entry should never exceed the maximum | |
2435 | * entries. If it does, treat it as an adapter hardware error. | |
2436 | */ | |
2437 | portRspMax = pring->numRiocb; | |
2438 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2439 | if (unlikely(portRspPut >= portRspMax)) { | |
875fbdfe | 2440 | lpfc_sli_rsp_pointers_error(phba, pring); |
2e0fef85 | 2441 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2442 | return 1; |
2443 | } | |
45ed1190 JS |
2444 | if (phba->fcp_ring_in_use) { |
2445 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2446 | return 1; | |
2447 | } else | |
2448 | phba->fcp_ring_in_use = 1; | |
dea3101e | 2449 | |
2450 | rmb(); | |
2451 | while (pring->rspidx != portRspPut) { | |
87f6eaff JSEC |
2452 | /* |
2453 | * Fetch an entry off the ring and copy it into a local data | |
2454 | * structure. The copy involves a byte-swap since the | |
2455 | * network byte order and pci byte orders are different. | |
2456 | */ | |
ed957684 | 2457 | entry = lpfc_resp_iocb(phba, pring); |
858c9f6c | 2458 | phba->last_completion_time = jiffies; |
875fbdfe JSEC |
2459 | |
2460 | if (++pring->rspidx >= portRspMax) | |
2461 | pring->rspidx = 0; | |
2462 | ||
87f6eaff JSEC |
2463 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, |
2464 | (uint32_t *) &rspiocbq.iocb, | |
ed957684 | 2465 | phba->iocb_rsp_size); |
a4bc3379 | 2466 | INIT_LIST_HEAD(&(rspiocbq.list)); |
87f6eaff JSEC |
2467 | irsp = &rspiocbq.iocb; |
2468 | ||
dea3101e | 2469 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); |
2470 | pring->stats.iocb_rsp++; | |
2471 | rsp_cmpl++; | |
2472 | ||
2473 | if (unlikely(irsp->ulpStatus)) { | |
92d7f7b0 JS |
2474 | /* |
2475 | * If resource errors reported from HBA, reduce | |
2476 | * queuedepths of the SCSI device. | |
2477 | */ | |
2478 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
2479 | (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { | |
2480 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
3772a991 | 2481 | phba->lpfc_rampdown_queue_depth(phba); |
92d7f7b0 JS |
2482 | spin_lock_irqsave(&phba->hbalock, iflag); |
2483 | } | |
2484 | ||
dea3101e | 2485 | /* Rsp ring <ringno> error: IOCB */ |
2486 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
e8b62011 | 2487 | "0336 Rsp Ring %d error: IOCB Data: " |
92d7f7b0 | 2488 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", |
e8b62011 | 2489 | pring->ringno, |
92d7f7b0 JS |
2490 | irsp->un.ulpWord[0], |
2491 | irsp->un.ulpWord[1], | |
2492 | irsp->un.ulpWord[2], | |
2493 | irsp->un.ulpWord[3], | |
2494 | irsp->un.ulpWord[4], | |
2495 | irsp->un.ulpWord[5], | |
d7c255b2 JS |
2496 | *(uint32_t *)&irsp->un1, |
2497 | *((uint32_t *)&irsp->un1 + 1)); | |
dea3101e | 2498 | } |
2499 | ||
2500 | switch (type) { | |
2501 | case LPFC_ABORT_IOCB: | |
2502 | case LPFC_SOL_IOCB: | |
2503 | /* | |
2504 | * Idle exchange closed via ABTS from port. No iocb | |
2505 | * resources need to be recovered. | |
2506 | */ | |
2507 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
dca9479b | 2508 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 | 2509 | "0333 IOCB cmd 0x%x" |
dca9479b | 2510 | " processed. Skipping" |
92d7f7b0 | 2511 | " completion\n", |
dca9479b | 2512 | irsp->ulpCommand); |
dea3101e | 2513 | break; |
2514 | } | |
2515 | ||
604a3e30 JB |
2516 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
2517 | &rspiocbq); | |
dea3101e | 2518 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { |
2e0fef85 JS |
2519 | spin_unlock_irqrestore(&phba->hbalock, |
2520 | iflag); | |
b808608b JW |
2521 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, |
2522 | &rspiocbq); | |
2e0fef85 | 2523 | spin_lock_irqsave(&phba->hbalock, |
b808608b JW |
2524 | iflag); |
2525 | } | |
dea3101e | 2526 | break; |
a4bc3379 | 2527 | case LPFC_UNSOL_IOCB: |
2e0fef85 | 2528 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
a4bc3379 | 2529 | lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq); |
2e0fef85 | 2530 | spin_lock_irqsave(&phba->hbalock, iflag); |
a4bc3379 | 2531 | break; |
dea3101e | 2532 | default: |
2533 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
2534 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
2535 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
2536 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
2537 | MAX_MSG_DATA); | |
898eb71c JP |
2538 | dev_warn(&((phba->pcidev)->dev), |
2539 | "lpfc%d: %s\n", | |
dea3101e | 2540 | phba->brd_no, adaptermsg); |
2541 | } else { | |
2542 | /* Unknown IOCB command */ | |
2543 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 2544 | "0334 Unknown IOCB command " |
92d7f7b0 | 2545 | "Data: x%x, x%x x%x x%x x%x\n", |
e8b62011 | 2546 | type, irsp->ulpCommand, |
92d7f7b0 JS |
2547 | irsp->ulpStatus, |
2548 | irsp->ulpIoTag, | |
2549 | irsp->ulpContext); | |
dea3101e | 2550 | } |
2551 | break; | |
2552 | } | |
2553 | ||
2554 | /* | |
2555 | * The response IOCB has been processed. Update the ring | |
2556 | * pointer in SLIM. If the port response put pointer has not | |
2557 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
2558 | * response put pointer. | |
2559 | */ | |
ed957684 | 2560 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
dea3101e | 2561 | |
2562 | if (pring->rspidx == portRspPut) | |
2563 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2564 | } | |
2565 | ||
2566 | if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) { | |
2567 | pring->stats.iocb_rsp_full++; | |
2568 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
2569 | writel(status, phba->CAregaddr); | |
2570 | readl(phba->CAregaddr); | |
2571 | } | |
2572 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2573 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2574 | pring->stats.iocb_cmd_empty++; | |
2575 | ||
2576 | /* Force update of the local copy of cmdGetInx */ | |
2577 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2578 | lpfc_sli_resume_iocb(phba, pring); | |
2579 | ||
2580 | if ((pring->lpfc_sli_cmd_available)) | |
2581 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2582 | ||
2583 | } | |
2584 | ||
45ed1190 | 2585 | phba->fcp_ring_in_use = 0; |
2e0fef85 | 2586 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2587 | return rc; |
2588 | } | |
2589 | ||
e59058c4 | 2590 | /** |
3772a991 JS |
2591 | * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb |
2592 | * @phba: Pointer to HBA context object. | |
2593 | * @pring: Pointer to driver SLI ring object. | |
2594 | * @rspiocbp: Pointer to driver response IOCB object. | |
2595 | * | |
2596 | * This function is called from the worker thread when there is a slow-path | |
2597 | * response IOCB to process. This function chains all the response iocbs until | |
2598 | * seeing the iocb with the LE bit set. The function will call | |
2599 | * lpfc_sli_process_sol_iocb function if the response iocb indicates a | |
2600 | * completion of a command iocb. The function will call the | |
2601 | * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb. | |
2602 | * The function frees the resources or calls the completion handler if this | |
2603 | * iocb is an abort completion. The function returns NULL when the response | |
2604 | * iocb has the LE bit set and all the chained iocbs are processed, otherwise | |
2605 | * this function shall chain the iocb on to the iocb_continueq and return the | |
2606 | * response iocb passed in. | |
2607 | **/ | |
2608 | static struct lpfc_iocbq * | |
2609 | lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2610 | struct lpfc_iocbq *rspiocbp) | |
2611 | { | |
2612 | struct lpfc_iocbq *saveq; | |
2613 | struct lpfc_iocbq *cmdiocbp; | |
2614 | struct lpfc_iocbq *next_iocb; | |
2615 | IOCB_t *irsp = NULL; | |
2616 | uint32_t free_saveq; | |
2617 | uint8_t iocb_cmd_type; | |
2618 | lpfc_iocb_type type; | |
2619 | unsigned long iflag; | |
2620 | int rc; | |
2621 | ||
2622 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2623 | /* First add the response iocb to the countinueq list */ | |
2624 | list_add_tail(&rspiocbp->list, &(pring->iocb_continueq)); | |
2625 | pring->iocb_continueq_cnt++; | |
2626 | ||
2627 | /* Now, determine whetehr the list is completed for processing */ | |
2628 | irsp = &rspiocbp->iocb; | |
2629 | if (irsp->ulpLe) { | |
2630 | /* | |
2631 | * By default, the driver expects to free all resources | |
2632 | * associated with this iocb completion. | |
2633 | */ | |
2634 | free_saveq = 1; | |
2635 | saveq = list_get_first(&pring->iocb_continueq, | |
2636 | struct lpfc_iocbq, list); | |
2637 | irsp = &(saveq->iocb); | |
2638 | list_del_init(&pring->iocb_continueq); | |
2639 | pring->iocb_continueq_cnt = 0; | |
2640 | ||
2641 | pring->stats.iocb_rsp++; | |
2642 | ||
2643 | /* | |
2644 | * If resource errors reported from HBA, reduce | |
2645 | * queuedepths of the SCSI device. | |
2646 | */ | |
2647 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
2648 | (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { | |
2649 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2650 | phba->lpfc_rampdown_queue_depth(phba); | |
2651 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2652 | } | |
2653 | ||
2654 | if (irsp->ulpStatus) { | |
2655 | /* Rsp ring <ringno> error: IOCB */ | |
2656 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
2657 | "0328 Rsp Ring %d error: " | |
2658 | "IOCB Data: " | |
2659 | "x%x x%x x%x x%x " | |
2660 | "x%x x%x x%x x%x " | |
2661 | "x%x x%x x%x x%x " | |
2662 | "x%x x%x x%x x%x\n", | |
2663 | pring->ringno, | |
2664 | irsp->un.ulpWord[0], | |
2665 | irsp->un.ulpWord[1], | |
2666 | irsp->un.ulpWord[2], | |
2667 | irsp->un.ulpWord[3], | |
2668 | irsp->un.ulpWord[4], | |
2669 | irsp->un.ulpWord[5], | |
2670 | *(((uint32_t *) irsp) + 6), | |
2671 | *(((uint32_t *) irsp) + 7), | |
2672 | *(((uint32_t *) irsp) + 8), | |
2673 | *(((uint32_t *) irsp) + 9), | |
2674 | *(((uint32_t *) irsp) + 10), | |
2675 | *(((uint32_t *) irsp) + 11), | |
2676 | *(((uint32_t *) irsp) + 12), | |
2677 | *(((uint32_t *) irsp) + 13), | |
2678 | *(((uint32_t *) irsp) + 14), | |
2679 | *(((uint32_t *) irsp) + 15)); | |
2680 | } | |
2681 | ||
2682 | /* | |
2683 | * Fetch the IOCB command type and call the correct completion | |
2684 | * routine. Solicited and Unsolicited IOCBs on the ELS ring | |
2685 | * get freed back to the lpfc_iocb_list by the discovery | |
2686 | * kernel thread. | |
2687 | */ | |
2688 | iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK; | |
2689 | type = lpfc_sli_iocb_cmd_type(iocb_cmd_type); | |
2690 | switch (type) { | |
2691 | case LPFC_SOL_IOCB: | |
2692 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2693 | rc = lpfc_sli_process_sol_iocb(phba, pring, saveq); | |
2694 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2695 | break; | |
2696 | ||
2697 | case LPFC_UNSOL_IOCB: | |
2698 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2699 | rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq); | |
2700 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2701 | if (!rc) | |
2702 | free_saveq = 0; | |
2703 | break; | |
2704 | ||
2705 | case LPFC_ABORT_IOCB: | |
2706 | cmdiocbp = NULL; | |
2707 | if (irsp->ulpCommand != CMD_XRI_ABORTED_CX) | |
2708 | cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, | |
2709 | saveq); | |
2710 | if (cmdiocbp) { | |
2711 | /* Call the specified completion routine */ | |
2712 | if (cmdiocbp->iocb_cmpl) { | |
2713 | spin_unlock_irqrestore(&phba->hbalock, | |
2714 | iflag); | |
2715 | (cmdiocbp->iocb_cmpl)(phba, cmdiocbp, | |
2716 | saveq); | |
2717 | spin_lock_irqsave(&phba->hbalock, | |
2718 | iflag); | |
2719 | } else | |
2720 | __lpfc_sli_release_iocbq(phba, | |
2721 | cmdiocbp); | |
2722 | } | |
2723 | break; | |
2724 | ||
2725 | case LPFC_UNKNOWN_IOCB: | |
2726 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
2727 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
2728 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
2729 | memcpy(&adaptermsg[0], (uint8_t *)irsp, | |
2730 | MAX_MSG_DATA); | |
2731 | dev_warn(&((phba->pcidev)->dev), | |
2732 | "lpfc%d: %s\n", | |
2733 | phba->brd_no, adaptermsg); | |
2734 | } else { | |
2735 | /* Unknown IOCB command */ | |
2736 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2737 | "0335 Unknown IOCB " | |
2738 | "command Data: x%x " | |
2739 | "x%x x%x x%x\n", | |
2740 | irsp->ulpCommand, | |
2741 | irsp->ulpStatus, | |
2742 | irsp->ulpIoTag, | |
2743 | irsp->ulpContext); | |
2744 | } | |
2745 | break; | |
2746 | } | |
2747 | ||
2748 | if (free_saveq) { | |
2749 | list_for_each_entry_safe(rspiocbp, next_iocb, | |
2750 | &saveq->list, list) { | |
2751 | list_del(&rspiocbp->list); | |
2752 | __lpfc_sli_release_iocbq(phba, rspiocbp); | |
2753 | } | |
2754 | __lpfc_sli_release_iocbq(phba, saveq); | |
2755 | } | |
2756 | rspiocbp = NULL; | |
2757 | } | |
2758 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2759 | return rspiocbp; | |
2760 | } | |
2761 | ||
2762 | /** | |
2763 | * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs | |
e59058c4 JS |
2764 | * @phba: Pointer to HBA context object. |
2765 | * @pring: Pointer to driver SLI ring object. | |
2766 | * @mask: Host attention register mask for this ring. | |
2767 | * | |
3772a991 JS |
2768 | * This routine wraps the actual slow_ring event process routine from the |
2769 | * API jump table function pointer from the lpfc_hba struct. | |
e59058c4 | 2770 | **/ |
3772a991 | 2771 | void |
2e0fef85 JS |
2772 | lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba, |
2773 | struct lpfc_sli_ring *pring, uint32_t mask) | |
3772a991 JS |
2774 | { |
2775 | phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask); | |
2776 | } | |
2777 | ||
2778 | /** | |
2779 | * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings | |
2780 | * @phba: Pointer to HBA context object. | |
2781 | * @pring: Pointer to driver SLI ring object. | |
2782 | * @mask: Host attention register mask for this ring. | |
2783 | * | |
2784 | * This function is called from the worker thread when there is a ring event | |
2785 | * for non-fcp rings. The caller does not hold any lock. The function will | |
2786 | * remove each response iocb in the response ring and calls the handle | |
2787 | * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it. | |
2788 | **/ | |
2789 | static void | |
2790 | lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba, | |
2791 | struct lpfc_sli_ring *pring, uint32_t mask) | |
dea3101e | 2792 | { |
34b02dcd | 2793 | struct lpfc_pgp *pgp; |
dea3101e | 2794 | IOCB_t *entry; |
2795 | IOCB_t *irsp = NULL; | |
2796 | struct lpfc_iocbq *rspiocbp = NULL; | |
dea3101e | 2797 | uint32_t portRspPut, portRspMax; |
dea3101e | 2798 | unsigned long iflag; |
3772a991 | 2799 | uint32_t status; |
dea3101e | 2800 | |
34b02dcd | 2801 | pgp = &phba->port_gp[pring->ringno]; |
2e0fef85 | 2802 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 2803 | pring->stats.iocb_event++; |
2804 | ||
dea3101e | 2805 | /* |
2806 | * The next available response entry should never exceed the maximum | |
2807 | * entries. If it does, treat it as an adapter hardware error. | |
2808 | */ | |
2809 | portRspMax = pring->numRiocb; | |
2810 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2811 | if (portRspPut >= portRspMax) { | |
2812 | /* | |
025dfdaf | 2813 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger than |
dea3101e | 2814 | * rsp ring <portRspMax> |
2815 | */ | |
ed957684 | 2816 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 2817 | "0303 Ring %d handler: portRspPut %d " |
025dfdaf | 2818 | "is bigger than rsp ring %d\n", |
e8b62011 | 2819 | pring->ringno, portRspPut, portRspMax); |
dea3101e | 2820 | |
2e0fef85 JS |
2821 | phba->link_state = LPFC_HBA_ERROR; |
2822 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
dea3101e | 2823 | |
2824 | phba->work_hs = HS_FFER3; | |
2825 | lpfc_handle_eratt(phba); | |
2826 | ||
3772a991 | 2827 | return; |
dea3101e | 2828 | } |
2829 | ||
2830 | rmb(); | |
dea3101e | 2831 | while (pring->rspidx != portRspPut) { |
2832 | /* | |
2833 | * Build a completion list and call the appropriate handler. | |
2834 | * The process is to get the next available response iocb, get | |
2835 | * a free iocb from the list, copy the response data into the | |
2836 | * free iocb, insert to the continuation list, and update the | |
2837 | * next response index to slim. This process makes response | |
2838 | * iocb's in the ring available to DMA as fast as possible but | |
2839 | * pays a penalty for a copy operation. Since the iocb is | |
2840 | * only 32 bytes, this penalty is considered small relative to | |
2841 | * the PCI reads for register values and a slim write. When | |
2842 | * the ulpLe field is set, the entire Command has been | |
2843 | * received. | |
2844 | */ | |
ed957684 JS |
2845 | entry = lpfc_resp_iocb(phba, pring); |
2846 | ||
858c9f6c | 2847 | phba->last_completion_time = jiffies; |
2e0fef85 | 2848 | rspiocbp = __lpfc_sli_get_iocbq(phba); |
dea3101e | 2849 | if (rspiocbp == NULL) { |
2850 | printk(KERN_ERR "%s: out of buffers! Failing " | |
cadbd4a5 | 2851 | "completion.\n", __func__); |
dea3101e | 2852 | break; |
2853 | } | |
2854 | ||
ed957684 JS |
2855 | lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb, |
2856 | phba->iocb_rsp_size); | |
dea3101e | 2857 | irsp = &rspiocbp->iocb; |
2858 | ||
2859 | if (++pring->rspidx >= portRspMax) | |
2860 | pring->rspidx = 0; | |
2861 | ||
a58cbd52 JS |
2862 | if (pring->ringno == LPFC_ELS_RING) { |
2863 | lpfc_debugfs_slow_ring_trc(phba, | |
2864 | "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x", | |
2865 | *(((uint32_t *) irsp) + 4), | |
2866 | *(((uint32_t *) irsp) + 6), | |
2867 | *(((uint32_t *) irsp) + 7)); | |
2868 | } | |
2869 | ||
ed957684 | 2870 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
dea3101e | 2871 | |
3772a991 JS |
2872 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
2873 | /* Handle the response IOCB */ | |
2874 | rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp); | |
2875 | spin_lock_irqsave(&phba->hbalock, iflag); | |
dea3101e | 2876 | |
2877 | /* | |
2878 | * If the port response put pointer has not been updated, sync | |
2879 | * the pgp->rspPutInx in the MAILBOX_tand fetch the new port | |
2880 | * response put pointer. | |
2881 | */ | |
2882 | if (pring->rspidx == portRspPut) { | |
2883 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2884 | } | |
2885 | } /* while (pring->rspidx != portRspPut) */ | |
2886 | ||
92d7f7b0 | 2887 | if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) { |
dea3101e | 2888 | /* At least one response entry has been freed */ |
2889 | pring->stats.iocb_rsp_full++; | |
2890 | /* SET RxRE_RSP in Chip Att register */ | |
2891 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
2892 | writel(status, phba->CAregaddr); | |
2893 | readl(phba->CAregaddr); /* flush */ | |
2894 | } | |
2895 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2896 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2897 | pring->stats.iocb_cmd_empty++; | |
2898 | ||
2899 | /* Force update of the local copy of cmdGetInx */ | |
2900 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2901 | lpfc_sli_resume_iocb(phba, pring); | |
2902 | ||
2903 | if ((pring->lpfc_sli_cmd_available)) | |
2904 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2905 | ||
2906 | } | |
2907 | ||
2e0fef85 | 2908 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
3772a991 | 2909 | return; |
dea3101e | 2910 | } |
2911 | ||
4f774513 JS |
2912 | /** |
2913 | * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events | |
2914 | * @phba: Pointer to HBA context object. | |
2915 | * @pring: Pointer to driver SLI ring object. | |
2916 | * @mask: Host attention register mask for this ring. | |
2917 | * | |
2918 | * This function is called from the worker thread when there is a pending | |
2919 | * ELS response iocb on the driver internal slow-path response iocb worker | |
2920 | * queue. The caller does not hold any lock. The function will remove each | |
2921 | * response iocb from the response worker queue and calls the handle | |
2922 | * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it. | |
2923 | **/ | |
2924 | static void | |
2925 | lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba, | |
2926 | struct lpfc_sli_ring *pring, uint32_t mask) | |
2927 | { | |
2928 | struct lpfc_iocbq *irspiocbq; | |
4d9ab994 JS |
2929 | struct hbq_dmabuf *dmabuf; |
2930 | struct lpfc_cq_event *cq_event; | |
4f774513 JS |
2931 | unsigned long iflag; |
2932 | ||
45ed1190 JS |
2933 | spin_lock_irqsave(&phba->hbalock, iflag); |
2934 | phba->hba_flag &= ~HBA_SP_QUEUE_EVT; | |
2935 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2936 | while (!list_empty(&phba->sli4_hba.sp_queue_event)) { | |
4f774513 JS |
2937 | /* Get the response iocb from the head of work queue */ |
2938 | spin_lock_irqsave(&phba->hbalock, iflag); | |
45ed1190 | 2939 | list_remove_head(&phba->sli4_hba.sp_queue_event, |
4d9ab994 | 2940 | cq_event, struct lpfc_cq_event, list); |
4f774513 | 2941 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
4d9ab994 JS |
2942 | |
2943 | switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) { | |
2944 | case CQE_CODE_COMPL_WQE: | |
2945 | irspiocbq = container_of(cq_event, struct lpfc_iocbq, | |
2946 | cq_event); | |
45ed1190 JS |
2947 | /* Translate ELS WCQE to response IOCBQ */ |
2948 | irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba, | |
2949 | irspiocbq); | |
2950 | if (irspiocbq) | |
2951 | lpfc_sli_sp_handle_rspiocb(phba, pring, | |
2952 | irspiocbq); | |
4d9ab994 JS |
2953 | break; |
2954 | case CQE_CODE_RECEIVE: | |
2955 | dmabuf = container_of(cq_event, struct hbq_dmabuf, | |
2956 | cq_event); | |
2957 | lpfc_sli4_handle_received_buffer(phba, dmabuf); | |
2958 | break; | |
2959 | default: | |
2960 | break; | |
2961 | } | |
4f774513 JS |
2962 | } |
2963 | } | |
2964 | ||
e59058c4 | 2965 | /** |
3621a710 | 2966 | * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring |
e59058c4 JS |
2967 | * @phba: Pointer to HBA context object. |
2968 | * @pring: Pointer to driver SLI ring object. | |
2969 | * | |
2970 | * This function aborts all iocbs in the given ring and frees all the iocb | |
2971 | * objects in txq. This function issues an abort iocb for all the iocb commands | |
2972 | * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before | |
2973 | * the return of this function. The caller is not required to hold any locks. | |
2974 | **/ | |
2e0fef85 | 2975 | void |
dea3101e | 2976 | lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
2977 | { | |
2534ba75 | 2978 | LIST_HEAD(completions); |
dea3101e | 2979 | struct lpfc_iocbq *iocb, *next_iocb; |
dea3101e | 2980 | |
92d7f7b0 JS |
2981 | if (pring->ringno == LPFC_ELS_RING) { |
2982 | lpfc_fabric_abort_hba(phba); | |
2983 | } | |
2984 | ||
dea3101e | 2985 | /* Error everything on txq and txcmplq |
2986 | * First do the txq. | |
2987 | */ | |
2e0fef85 | 2988 | spin_lock_irq(&phba->hbalock); |
2534ba75 | 2989 | list_splice_init(&pring->txq, &completions); |
dea3101e | 2990 | pring->txq_cnt = 0; |
dea3101e | 2991 | |
2992 | /* Next issue ABTS for everything on the txcmplq */ | |
2534ba75 JS |
2993 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) |
2994 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
dea3101e | 2995 | |
2e0fef85 | 2996 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 2997 | |
a257bf90 JS |
2998 | /* Cancel all the IOCBs from the completions list */ |
2999 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
3000 | IOERR_SLI_ABORTED); | |
dea3101e | 3001 | } |
3002 | ||
a8e497d5 | 3003 | /** |
3621a710 | 3004 | * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring |
a8e497d5 JS |
3005 | * @phba: Pointer to HBA context object. |
3006 | * | |
3007 | * This function flushes all iocbs in the fcp ring and frees all the iocb | |
3008 | * objects in txq and txcmplq. This function will not issue abort iocbs | |
3009 | * for all the iocb commands in txcmplq, they will just be returned with | |
3010 | * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI | |
3011 | * slot has been permanently disabled. | |
3012 | **/ | |
3013 | void | |
3014 | lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba) | |
3015 | { | |
3016 | LIST_HEAD(txq); | |
3017 | LIST_HEAD(txcmplq); | |
a8e497d5 JS |
3018 | struct lpfc_sli *psli = &phba->sli; |
3019 | struct lpfc_sli_ring *pring; | |
3020 | ||
3021 | /* Currently, only one fcp ring */ | |
3022 | pring = &psli->ring[psli->fcp_ring]; | |
3023 | ||
3024 | spin_lock_irq(&phba->hbalock); | |
3025 | /* Retrieve everything on txq */ | |
3026 | list_splice_init(&pring->txq, &txq); | |
3027 | pring->txq_cnt = 0; | |
3028 | ||
3029 | /* Retrieve everything on the txcmplq */ | |
3030 | list_splice_init(&pring->txcmplq, &txcmplq); | |
3031 | pring->txcmplq_cnt = 0; | |
3032 | spin_unlock_irq(&phba->hbalock); | |
3033 | ||
3034 | /* Flush the txq */ | |
a257bf90 JS |
3035 | lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT, |
3036 | IOERR_SLI_DOWN); | |
a8e497d5 JS |
3037 | |
3038 | /* Flush the txcmpq */ | |
a257bf90 JS |
3039 | lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT, |
3040 | IOERR_SLI_DOWN); | |
a8e497d5 JS |
3041 | } |
3042 | ||
e59058c4 | 3043 | /** |
3772a991 | 3044 | * lpfc_sli_brdready_s3 - Check for sli3 host ready status |
e59058c4 JS |
3045 | * @phba: Pointer to HBA context object. |
3046 | * @mask: Bit mask to be checked. | |
3047 | * | |
3048 | * This function reads the host status register and compares | |
3049 | * with the provided bit mask to check if HBA completed | |
3050 | * the restart. This function will wait in a loop for the | |
3051 | * HBA to complete restart. If the HBA does not restart within | |
3052 | * 15 iterations, the function will reset the HBA again. The | |
3053 | * function returns 1 when HBA fail to restart otherwise returns | |
3054 | * zero. | |
3055 | **/ | |
3772a991 JS |
3056 | static int |
3057 | lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask) | |
dea3101e | 3058 | { |
41415862 JW |
3059 | uint32_t status; |
3060 | int i = 0; | |
3061 | int retval = 0; | |
dea3101e | 3062 | |
41415862 JW |
3063 | /* Read the HBA Host Status Register */ |
3064 | status = readl(phba->HSregaddr); | |
dea3101e | 3065 | |
41415862 JW |
3066 | /* |
3067 | * Check status register every 100ms for 5 retries, then every | |
3068 | * 500ms for 5, then every 2.5 sec for 5, then reset board and | |
3069 | * every 2.5 sec for 4. | |
3070 | * Break our of the loop if errors occurred during init. | |
3071 | */ | |
3072 | while (((status & mask) != mask) && | |
3073 | !(status & HS_FFERM) && | |
3074 | i++ < 20) { | |
dea3101e | 3075 | |
41415862 JW |
3076 | if (i <= 5) |
3077 | msleep(10); | |
3078 | else if (i <= 10) | |
3079 | msleep(500); | |
3080 | else | |
3081 | msleep(2500); | |
dea3101e | 3082 | |
41415862 | 3083 | if (i == 15) { |
2e0fef85 | 3084 | /* Do post */ |
92d7f7b0 | 3085 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 JW |
3086 | lpfc_sli_brdrestart(phba); |
3087 | } | |
3088 | /* Read the HBA Host Status Register */ | |
3089 | status = readl(phba->HSregaddr); | |
3090 | } | |
dea3101e | 3091 | |
41415862 JW |
3092 | /* Check to see if any errors occurred during init */ |
3093 | if ((status & HS_FFERM) || (i >= 20)) { | |
2e0fef85 | 3094 | phba->link_state = LPFC_HBA_ERROR; |
41415862 | 3095 | retval = 1; |
dea3101e | 3096 | } |
dea3101e | 3097 | |
41415862 JW |
3098 | return retval; |
3099 | } | |
dea3101e | 3100 | |
da0436e9 JS |
3101 | /** |
3102 | * lpfc_sli_brdready_s4 - Check for sli4 host ready status | |
3103 | * @phba: Pointer to HBA context object. | |
3104 | * @mask: Bit mask to be checked. | |
3105 | * | |
3106 | * This function checks the host status register to check if HBA is | |
3107 | * ready. This function will wait in a loop for the HBA to be ready | |
3108 | * If the HBA is not ready , the function will will reset the HBA PCI | |
3109 | * function again. The function returns 1 when HBA fail to be ready | |
3110 | * otherwise returns zero. | |
3111 | **/ | |
3112 | static int | |
3113 | lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask) | |
3114 | { | |
3115 | uint32_t status; | |
3116 | int retval = 0; | |
3117 | ||
3118 | /* Read the HBA Host Status Register */ | |
3119 | status = lpfc_sli4_post_status_check(phba); | |
3120 | ||
3121 | if (status) { | |
3122 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; | |
3123 | lpfc_sli_brdrestart(phba); | |
3124 | status = lpfc_sli4_post_status_check(phba); | |
3125 | } | |
3126 | ||
3127 | /* Check to see if any errors occurred during init */ | |
3128 | if (status) { | |
3129 | phba->link_state = LPFC_HBA_ERROR; | |
3130 | retval = 1; | |
3131 | } else | |
3132 | phba->sli4_hba.intr_enable = 0; | |
3133 | ||
3134 | return retval; | |
3135 | } | |
3136 | ||
3137 | /** | |
3138 | * lpfc_sli_brdready - Wrapper func for checking the hba readyness | |
3139 | * @phba: Pointer to HBA context object. | |
3140 | * @mask: Bit mask to be checked. | |
3141 | * | |
3142 | * This routine wraps the actual SLI3 or SLI4 hba readyness check routine | |
3143 | * from the API jump table function pointer from the lpfc_hba struct. | |
3144 | **/ | |
3145 | int | |
3146 | lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask) | |
3147 | { | |
3148 | return phba->lpfc_sli_brdready(phba, mask); | |
3149 | } | |
3150 | ||
9290831f JS |
3151 | #define BARRIER_TEST_PATTERN (0xdeadbeef) |
3152 | ||
e59058c4 | 3153 | /** |
3621a710 | 3154 | * lpfc_reset_barrier - Make HBA ready for HBA reset |
e59058c4 JS |
3155 | * @phba: Pointer to HBA context object. |
3156 | * | |
3157 | * This function is called before resetting an HBA. This | |
3158 | * function requests HBA to quiesce DMAs before a reset. | |
3159 | **/ | |
2e0fef85 | 3160 | void lpfc_reset_barrier(struct lpfc_hba *phba) |
9290831f | 3161 | { |
65a29c16 JS |
3162 | uint32_t __iomem *resp_buf; |
3163 | uint32_t __iomem *mbox_buf; | |
9290831f JS |
3164 | volatile uint32_t mbox; |
3165 | uint32_t hc_copy; | |
3166 | int i; | |
3167 | uint8_t hdrtype; | |
3168 | ||
3169 | pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype); | |
3170 | if (hdrtype != 0x80 || | |
3171 | (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID && | |
3172 | FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID)) | |
3173 | return; | |
3174 | ||
3175 | /* | |
3176 | * Tell the other part of the chip to suspend temporarily all | |
3177 | * its DMA activity. | |
3178 | */ | |
65a29c16 | 3179 | resp_buf = phba->MBslimaddr; |
9290831f JS |
3180 | |
3181 | /* Disable the error attention */ | |
3182 | hc_copy = readl(phba->HCregaddr); | |
3183 | writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr); | |
3184 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 | 3185 | phba->link_flag |= LS_IGNORE_ERATT; |
9290831f JS |
3186 | |
3187 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
3188 | /* Clear Chip error bit */ | |
3189 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 3190 | phba->pport->stopped = 1; |
9290831f JS |
3191 | } |
3192 | ||
3193 | mbox = 0; | |
3194 | ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD; | |
3195 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP; | |
3196 | ||
3197 | writel(BARRIER_TEST_PATTERN, (resp_buf + 1)); | |
65a29c16 | 3198 | mbox_buf = phba->MBslimaddr; |
9290831f JS |
3199 | writel(mbox, mbox_buf); |
3200 | ||
3201 | for (i = 0; | |
3202 | readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++) | |
3203 | mdelay(1); | |
3204 | ||
3205 | if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) { | |
f4b4c68f | 3206 | if (phba->sli.sli_flag & LPFC_SLI_ACTIVE || |
2e0fef85 | 3207 | phba->pport->stopped) |
9290831f JS |
3208 | goto restore_hc; |
3209 | else | |
3210 | goto clear_errat; | |
3211 | } | |
3212 | ||
3213 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST; | |
3214 | for (i = 0; readl(resp_buf) != mbox && i < 500; i++) | |
3215 | mdelay(1); | |
3216 | ||
3217 | clear_errat: | |
3218 | ||
3219 | while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500) | |
3220 | mdelay(1); | |
3221 | ||
3222 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
3223 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 3224 | phba->pport->stopped = 1; |
9290831f JS |
3225 | } |
3226 | ||
3227 | restore_hc: | |
2e0fef85 | 3228 | phba->link_flag &= ~LS_IGNORE_ERATT; |
9290831f JS |
3229 | writel(hc_copy, phba->HCregaddr); |
3230 | readl(phba->HCregaddr); /* flush */ | |
3231 | } | |
3232 | ||
e59058c4 | 3233 | /** |
3621a710 | 3234 | * lpfc_sli_brdkill - Issue a kill_board mailbox command |
e59058c4 JS |
3235 | * @phba: Pointer to HBA context object. |
3236 | * | |
3237 | * This function issues a kill_board mailbox command and waits for | |
3238 | * the error attention interrupt. This function is called for stopping | |
3239 | * the firmware processing. The caller is not required to hold any | |
3240 | * locks. This function calls lpfc_hba_down_post function to free | |
3241 | * any pending commands after the kill. The function will return 1 when it | |
3242 | * fails to kill the board else will return 0. | |
3243 | **/ | |
41415862 | 3244 | int |
2e0fef85 | 3245 | lpfc_sli_brdkill(struct lpfc_hba *phba) |
41415862 JW |
3246 | { |
3247 | struct lpfc_sli *psli; | |
3248 | LPFC_MBOXQ_t *pmb; | |
3249 | uint32_t status; | |
3250 | uint32_t ha_copy; | |
3251 | int retval; | |
3252 | int i = 0; | |
dea3101e | 3253 | |
41415862 | 3254 | psli = &phba->sli; |
dea3101e | 3255 | |
41415862 | 3256 | /* Kill HBA */ |
ed957684 | 3257 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 JS |
3258 | "0329 Kill HBA Data: x%x x%x\n", |
3259 | phba->pport->port_state, psli->sli_flag); | |
41415862 | 3260 | |
98c9ea5c JS |
3261 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
3262 | if (!pmb) | |
41415862 | 3263 | return 1; |
41415862 JW |
3264 | |
3265 | /* Disable the error attention */ | |
2e0fef85 | 3266 | spin_lock_irq(&phba->hbalock); |
41415862 JW |
3267 | status = readl(phba->HCregaddr); |
3268 | status &= ~HC_ERINT_ENA; | |
3269 | writel(status, phba->HCregaddr); | |
3270 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 JS |
3271 | phba->link_flag |= LS_IGNORE_ERATT; |
3272 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
3273 | |
3274 | lpfc_kill_board(phba, pmb); | |
3275 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
3276 | retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
3277 | ||
3278 | if (retval != MBX_SUCCESS) { | |
3279 | if (retval != MBX_BUSY) | |
3280 | mempool_free(pmb, phba->mbox_mem_pool); | |
2e0fef85 JS |
3281 | spin_lock_irq(&phba->hbalock); |
3282 | phba->link_flag &= ~LS_IGNORE_ERATT; | |
3283 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
3284 | return 1; |
3285 | } | |
3286 | ||
f4b4c68f JS |
3287 | spin_lock_irq(&phba->hbalock); |
3288 | psli->sli_flag &= ~LPFC_SLI_ACTIVE; | |
3289 | spin_unlock_irq(&phba->hbalock); | |
9290831f | 3290 | |
41415862 JW |
3291 | mempool_free(pmb, phba->mbox_mem_pool); |
3292 | ||
3293 | /* There is no completion for a KILL_BOARD mbox cmd. Check for an error | |
3294 | * attention every 100ms for 3 seconds. If we don't get ERATT after | |
3295 | * 3 seconds we still set HBA_ERROR state because the status of the | |
3296 | * board is now undefined. | |
3297 | */ | |
3298 | ha_copy = readl(phba->HAregaddr); | |
3299 | ||
3300 | while ((i++ < 30) && !(ha_copy & HA_ERATT)) { | |
3301 | mdelay(100); | |
3302 | ha_copy = readl(phba->HAregaddr); | |
3303 | } | |
3304 | ||
3305 | del_timer_sync(&psli->mbox_tmo); | |
9290831f JS |
3306 | if (ha_copy & HA_ERATT) { |
3307 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 3308 | phba->pport->stopped = 1; |
9290831f | 3309 | } |
2e0fef85 | 3310 | spin_lock_irq(&phba->hbalock); |
41415862 | 3311 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
04c68496 | 3312 | psli->mbox_active = NULL; |
2e0fef85 JS |
3313 | phba->link_flag &= ~LS_IGNORE_ERATT; |
3314 | spin_unlock_irq(&phba->hbalock); | |
41415862 | 3315 | |
41415862 | 3316 | lpfc_hba_down_post(phba); |
2e0fef85 | 3317 | phba->link_state = LPFC_HBA_ERROR; |
41415862 | 3318 | |
2e0fef85 | 3319 | return ha_copy & HA_ERATT ? 0 : 1; |
dea3101e | 3320 | } |
3321 | ||
e59058c4 | 3322 | /** |
3772a991 | 3323 | * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA |
e59058c4 JS |
3324 | * @phba: Pointer to HBA context object. |
3325 | * | |
3326 | * This function resets the HBA by writing HC_INITFF to the control | |
3327 | * register. After the HBA resets, this function resets all the iocb ring | |
3328 | * indices. This function disables PCI layer parity checking during | |
3329 | * the reset. | |
3330 | * This function returns 0 always. | |
3331 | * The caller is not required to hold any locks. | |
3332 | **/ | |
41415862 | 3333 | int |
2e0fef85 | 3334 | lpfc_sli_brdreset(struct lpfc_hba *phba) |
dea3101e | 3335 | { |
41415862 | 3336 | struct lpfc_sli *psli; |
dea3101e | 3337 | struct lpfc_sli_ring *pring; |
41415862 | 3338 | uint16_t cfg_value; |
dea3101e | 3339 | int i; |
dea3101e | 3340 | |
41415862 | 3341 | psli = &phba->sli; |
dea3101e | 3342 | |
41415862 JW |
3343 | /* Reset HBA */ |
3344 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 3345 | "0325 Reset HBA Data: x%x x%x\n", |
2e0fef85 | 3346 | phba->pport->port_state, psli->sli_flag); |
dea3101e | 3347 | |
3348 | /* perform board reset */ | |
3349 | phba->fc_eventTag = 0; | |
4d9ab994 | 3350 | phba->link_events = 0; |
2e0fef85 JS |
3351 | phba->pport->fc_myDID = 0; |
3352 | phba->pport->fc_prevDID = 0; | |
dea3101e | 3353 | |
41415862 JW |
3354 | /* Turn off parity checking and serr during the physical reset */ |
3355 | pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); | |
3356 | pci_write_config_word(phba->pcidev, PCI_COMMAND, | |
3357 | (cfg_value & | |
3358 | ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); | |
3359 | ||
3772a991 JS |
3360 | psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA); |
3361 | ||
41415862 JW |
3362 | /* Now toggle INITFF bit in the Host Control Register */ |
3363 | writel(HC_INITFF, phba->HCregaddr); | |
3364 | mdelay(1); | |
3365 | readl(phba->HCregaddr); /* flush */ | |
3366 | writel(0, phba->HCregaddr); | |
3367 | readl(phba->HCregaddr); /* flush */ | |
3368 | ||
3369 | /* Restore PCI cmd register */ | |
3370 | pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value); | |
dea3101e | 3371 | |
3372 | /* Initialize relevant SLI info */ | |
41415862 JW |
3373 | for (i = 0; i < psli->num_rings; i++) { |
3374 | pring = &psli->ring[i]; | |
dea3101e | 3375 | pring->flag = 0; |
3376 | pring->rspidx = 0; | |
3377 | pring->next_cmdidx = 0; | |
3378 | pring->local_getidx = 0; | |
3379 | pring->cmdidx = 0; | |
3380 | pring->missbufcnt = 0; | |
3381 | } | |
dea3101e | 3382 | |
2e0fef85 | 3383 | phba->link_state = LPFC_WARM_START; |
41415862 JW |
3384 | return 0; |
3385 | } | |
3386 | ||
e59058c4 | 3387 | /** |
da0436e9 JS |
3388 | * lpfc_sli4_brdreset - Reset a sli-4 HBA |
3389 | * @phba: Pointer to HBA context object. | |
3390 | * | |
3391 | * This function resets a SLI4 HBA. This function disables PCI layer parity | |
3392 | * checking during resets the device. The caller is not required to hold | |
3393 | * any locks. | |
3394 | * | |
3395 | * This function returns 0 always. | |
3396 | **/ | |
3397 | int | |
3398 | lpfc_sli4_brdreset(struct lpfc_hba *phba) | |
3399 | { | |
3400 | struct lpfc_sli *psli = &phba->sli; | |
3401 | uint16_t cfg_value; | |
3402 | uint8_t qindx; | |
3403 | ||
3404 | /* Reset HBA */ | |
3405 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3406 | "0295 Reset HBA Data: x%x x%x\n", | |
3407 | phba->pport->port_state, psli->sli_flag); | |
3408 | ||
3409 | /* perform board reset */ | |
3410 | phba->fc_eventTag = 0; | |
4d9ab994 | 3411 | phba->link_events = 0; |
da0436e9 JS |
3412 | phba->pport->fc_myDID = 0; |
3413 | phba->pport->fc_prevDID = 0; | |
3414 | ||
3415 | /* Turn off parity checking and serr during the physical reset */ | |
3416 | pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); | |
3417 | pci_write_config_word(phba->pcidev, PCI_COMMAND, | |
3418 | (cfg_value & | |
3419 | ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); | |
3420 | ||
3421 | spin_lock_irq(&phba->hbalock); | |
3422 | psli->sli_flag &= ~(LPFC_PROCESS_LA); | |
3423 | phba->fcf.fcf_flag = 0; | |
3424 | /* Clean up the child queue list for the CQs */ | |
3425 | list_del_init(&phba->sli4_hba.mbx_wq->list); | |
3426 | list_del_init(&phba->sli4_hba.els_wq->list); | |
3427 | list_del_init(&phba->sli4_hba.hdr_rq->list); | |
3428 | list_del_init(&phba->sli4_hba.dat_rq->list); | |
3429 | list_del_init(&phba->sli4_hba.mbx_cq->list); | |
3430 | list_del_init(&phba->sli4_hba.els_cq->list); | |
da0436e9 JS |
3431 | for (qindx = 0; qindx < phba->cfg_fcp_wq_count; qindx++) |
3432 | list_del_init(&phba->sli4_hba.fcp_wq[qindx]->list); | |
3433 | for (qindx = 0; qindx < phba->cfg_fcp_eq_count; qindx++) | |
3434 | list_del_init(&phba->sli4_hba.fcp_cq[qindx]->list); | |
3435 | spin_unlock_irq(&phba->hbalock); | |
3436 | ||
3437 | /* Now physically reset the device */ | |
3438 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
3439 | "0389 Performing PCI function reset!\n"); | |
3440 | /* Perform FCoE PCI function reset */ | |
3441 | lpfc_pci_function_reset(phba); | |
3442 | ||
3443 | return 0; | |
3444 | } | |
3445 | ||
3446 | /** | |
3447 | * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba | |
e59058c4 JS |
3448 | * @phba: Pointer to HBA context object. |
3449 | * | |
3450 | * This function is called in the SLI initialization code path to | |
3451 | * restart the HBA. The caller is not required to hold any lock. | |
3452 | * This function writes MBX_RESTART mailbox command to the SLIM and | |
3453 | * resets the HBA. At the end of the function, it calls lpfc_hba_down_post | |
3454 | * function to free any pending commands. The function enables | |
3455 | * POST only during the first initialization. The function returns zero. | |
3456 | * The function does not guarantee completion of MBX_RESTART mailbox | |
3457 | * command before the return of this function. | |
3458 | **/ | |
da0436e9 JS |
3459 | static int |
3460 | lpfc_sli_brdrestart_s3(struct lpfc_hba *phba) | |
41415862 JW |
3461 | { |
3462 | MAILBOX_t *mb; | |
3463 | struct lpfc_sli *psli; | |
41415862 JW |
3464 | volatile uint32_t word0; |
3465 | void __iomem *to_slim; | |
0d878419 | 3466 | uint32_t hba_aer_enabled; |
41415862 | 3467 | |
2e0fef85 | 3468 | spin_lock_irq(&phba->hbalock); |
41415862 | 3469 | |
0d878419 JS |
3470 | /* Take PCIe device Advanced Error Reporting (AER) state */ |
3471 | hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED; | |
3472 | ||
41415862 JW |
3473 | psli = &phba->sli; |
3474 | ||
3475 | /* Restart HBA */ | |
3476 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 3477 | "0337 Restart HBA Data: x%x x%x\n", |
2e0fef85 | 3478 | phba->pport->port_state, psli->sli_flag); |
41415862 JW |
3479 | |
3480 | word0 = 0; | |
3481 | mb = (MAILBOX_t *) &word0; | |
3482 | mb->mbxCommand = MBX_RESTART; | |
3483 | mb->mbxHc = 1; | |
3484 | ||
9290831f JS |
3485 | lpfc_reset_barrier(phba); |
3486 | ||
41415862 JW |
3487 | to_slim = phba->MBslimaddr; |
3488 | writel(*(uint32_t *) mb, to_slim); | |
3489 | readl(to_slim); /* flush */ | |
3490 | ||
3491 | /* Only skip post after fc_ffinit is completed */ | |
eaf15d5b | 3492 | if (phba->pport->port_state) |
41415862 | 3493 | word0 = 1; /* This is really setting up word1 */ |
eaf15d5b | 3494 | else |
41415862 | 3495 | word0 = 0; /* This is really setting up word1 */ |
65a29c16 | 3496 | to_slim = phba->MBslimaddr + sizeof (uint32_t); |
41415862 JW |
3497 | writel(*(uint32_t *) mb, to_slim); |
3498 | readl(to_slim); /* flush */ | |
dea3101e | 3499 | |
41415862 | 3500 | lpfc_sli_brdreset(phba); |
2e0fef85 JS |
3501 | phba->pport->stopped = 0; |
3502 | phba->link_state = LPFC_INIT_START; | |
da0436e9 | 3503 | phba->hba_flag = 0; |
2e0fef85 | 3504 | spin_unlock_irq(&phba->hbalock); |
41415862 | 3505 | |
64ba8818 JS |
3506 | memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); |
3507 | psli->stats_start = get_seconds(); | |
3508 | ||
eaf15d5b JS |
3509 | /* Give the INITFF and Post time to settle. */ |
3510 | mdelay(100); | |
41415862 | 3511 | |
0d878419 JS |
3512 | /* Reset HBA AER if it was enabled, note hba_flag was reset above */ |
3513 | if (hba_aer_enabled) | |
3514 | pci_disable_pcie_error_reporting(phba->pcidev); | |
3515 | ||
41415862 | 3516 | lpfc_hba_down_post(phba); |
dea3101e | 3517 | |
3518 | return 0; | |
3519 | } | |
3520 | ||
da0436e9 JS |
3521 | /** |
3522 | * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba | |
3523 | * @phba: Pointer to HBA context object. | |
3524 | * | |
3525 | * This function is called in the SLI initialization code path to restart | |
3526 | * a SLI4 HBA. The caller is not required to hold any lock. | |
3527 | * At the end of the function, it calls lpfc_hba_down_post function to | |
3528 | * free any pending commands. | |
3529 | **/ | |
3530 | static int | |
3531 | lpfc_sli_brdrestart_s4(struct lpfc_hba *phba) | |
3532 | { | |
3533 | struct lpfc_sli *psli = &phba->sli; | |
3534 | ||
3535 | ||
3536 | /* Restart HBA */ | |
3537 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3538 | "0296 Restart HBA Data: x%x x%x\n", | |
3539 | phba->pport->port_state, psli->sli_flag); | |
3540 | ||
3541 | lpfc_sli4_brdreset(phba); | |
3542 | ||
3543 | spin_lock_irq(&phba->hbalock); | |
3544 | phba->pport->stopped = 0; | |
3545 | phba->link_state = LPFC_INIT_START; | |
3546 | phba->hba_flag = 0; | |
3547 | spin_unlock_irq(&phba->hbalock); | |
3548 | ||
3549 | memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); | |
3550 | psli->stats_start = get_seconds(); | |
3551 | ||
3552 | lpfc_hba_down_post(phba); | |
3553 | ||
3554 | return 0; | |
3555 | } | |
3556 | ||
3557 | /** | |
3558 | * lpfc_sli_brdrestart - Wrapper func for restarting hba | |
3559 | * @phba: Pointer to HBA context object. | |
3560 | * | |
3561 | * This routine wraps the actual SLI3 or SLI4 hba restart routine from the | |
3562 | * API jump table function pointer from the lpfc_hba struct. | |
3563 | **/ | |
3564 | int | |
3565 | lpfc_sli_brdrestart(struct lpfc_hba *phba) | |
3566 | { | |
3567 | return phba->lpfc_sli_brdrestart(phba); | |
3568 | } | |
3569 | ||
e59058c4 | 3570 | /** |
3621a710 | 3571 | * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart |
e59058c4 JS |
3572 | * @phba: Pointer to HBA context object. |
3573 | * | |
3574 | * This function is called after a HBA restart to wait for successful | |
3575 | * restart of the HBA. Successful restart of the HBA is indicated by | |
3576 | * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15 | |
3577 | * iteration, the function will restart the HBA again. The function returns | |
3578 | * zero if HBA successfully restarted else returns negative error code. | |
3579 | **/ | |
dea3101e | 3580 | static int |
3581 | lpfc_sli_chipset_init(struct lpfc_hba *phba) | |
3582 | { | |
3583 | uint32_t status, i = 0; | |
3584 | ||
3585 | /* Read the HBA Host Status Register */ | |
3586 | status = readl(phba->HSregaddr); | |
3587 | ||
3588 | /* Check status register to see what current state is */ | |
3589 | i = 0; | |
3590 | while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) { | |
3591 | ||
3592 | /* Check every 100ms for 5 retries, then every 500ms for 5, then | |
3593 | * every 2.5 sec for 5, then reset board and every 2.5 sec for | |
3594 | * 4. | |
3595 | */ | |
3596 | if (i++ >= 20) { | |
3597 | /* Adapter failed to init, timeout, status reg | |
3598 | <status> */ | |
ed957684 | 3599 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 3600 | "0436 Adapter failed to init, " |
09372820 JS |
3601 | "timeout, status reg x%x, " |
3602 | "FW Data: A8 x%x AC x%x\n", status, | |
3603 | readl(phba->MBslimaddr + 0xa8), | |
3604 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 3605 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 3606 | return -ETIMEDOUT; |
3607 | } | |
3608 | ||
3609 | /* Check to see if any errors occurred during init */ | |
3610 | if (status & HS_FFERM) { | |
3611 | /* ERROR: During chipset initialization */ | |
3612 | /* Adapter failed to init, chipset, status reg | |
3613 | <status> */ | |
ed957684 | 3614 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 3615 | "0437 Adapter failed to init, " |
09372820 JS |
3616 | "chipset, status reg x%x, " |
3617 | "FW Data: A8 x%x AC x%x\n", status, | |
3618 | readl(phba->MBslimaddr + 0xa8), | |
3619 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 3620 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 3621 | return -EIO; |
3622 | } | |
3623 | ||
3624 | if (i <= 5) { | |
3625 | msleep(10); | |
3626 | } else if (i <= 10) { | |
3627 | msleep(500); | |
3628 | } else { | |
3629 | msleep(2500); | |
3630 | } | |
3631 | ||
3632 | if (i == 15) { | |
2e0fef85 | 3633 | /* Do post */ |
92d7f7b0 | 3634 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 | 3635 | lpfc_sli_brdrestart(phba); |
dea3101e | 3636 | } |
3637 | /* Read the HBA Host Status Register */ | |
3638 | status = readl(phba->HSregaddr); | |
3639 | } | |
3640 | ||
3641 | /* Check to see if any errors occurred during init */ | |
3642 | if (status & HS_FFERM) { | |
3643 | /* ERROR: During chipset initialization */ | |
3644 | /* Adapter failed to init, chipset, status reg <status> */ | |
ed957684 | 3645 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 3646 | "0438 Adapter failed to init, chipset, " |
09372820 JS |
3647 | "status reg x%x, " |
3648 | "FW Data: A8 x%x AC x%x\n", status, | |
3649 | readl(phba->MBslimaddr + 0xa8), | |
3650 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 3651 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 3652 | return -EIO; |
3653 | } | |
3654 | ||
3655 | /* Clear all interrupt enable conditions */ | |
3656 | writel(0, phba->HCregaddr); | |
3657 | readl(phba->HCregaddr); /* flush */ | |
3658 | ||
3659 | /* setup host attn register */ | |
3660 | writel(0xffffffff, phba->HAregaddr); | |
3661 | readl(phba->HAregaddr); /* flush */ | |
3662 | return 0; | |
3663 | } | |
3664 | ||
e59058c4 | 3665 | /** |
3621a710 | 3666 | * lpfc_sli_hbq_count - Get the number of HBQs to be configured |
e59058c4 JS |
3667 | * |
3668 | * This function calculates and returns the number of HBQs required to be | |
3669 | * configured. | |
3670 | **/ | |
78b2d852 | 3671 | int |
ed957684 JS |
3672 | lpfc_sli_hbq_count(void) |
3673 | { | |
92d7f7b0 | 3674 | return ARRAY_SIZE(lpfc_hbq_defs); |
ed957684 JS |
3675 | } |
3676 | ||
e59058c4 | 3677 | /** |
3621a710 | 3678 | * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries |
e59058c4 JS |
3679 | * |
3680 | * This function adds the number of hbq entries in every HBQ to get | |
3681 | * the total number of hbq entries required for the HBA and returns | |
3682 | * the total count. | |
3683 | **/ | |
ed957684 JS |
3684 | static int |
3685 | lpfc_sli_hbq_entry_count(void) | |
3686 | { | |
3687 | int hbq_count = lpfc_sli_hbq_count(); | |
3688 | int count = 0; | |
3689 | int i; | |
3690 | ||
3691 | for (i = 0; i < hbq_count; ++i) | |
92d7f7b0 | 3692 | count += lpfc_hbq_defs[i]->entry_count; |
ed957684 JS |
3693 | return count; |
3694 | } | |
3695 | ||
e59058c4 | 3696 | /** |
3621a710 | 3697 | * lpfc_sli_hbq_size - Calculate memory required for all hbq entries |
e59058c4 JS |
3698 | * |
3699 | * This function calculates amount of memory required for all hbq entries | |
3700 | * to be configured and returns the total memory required. | |
3701 | **/ | |
dea3101e | 3702 | int |
ed957684 JS |
3703 | lpfc_sli_hbq_size(void) |
3704 | { | |
3705 | return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry); | |
3706 | } | |
3707 | ||
e59058c4 | 3708 | /** |
3621a710 | 3709 | * lpfc_sli_hbq_setup - configure and initialize HBQs |
e59058c4 JS |
3710 | * @phba: Pointer to HBA context object. |
3711 | * | |
3712 | * This function is called during the SLI initialization to configure | |
3713 | * all the HBQs and post buffers to the HBQ. The caller is not | |
3714 | * required to hold any locks. This function will return zero if successful | |
3715 | * else it will return negative error code. | |
3716 | **/ | |
ed957684 JS |
3717 | static int |
3718 | lpfc_sli_hbq_setup(struct lpfc_hba *phba) | |
3719 | { | |
3720 | int hbq_count = lpfc_sli_hbq_count(); | |
3721 | LPFC_MBOXQ_t *pmb; | |
3722 | MAILBOX_t *pmbox; | |
3723 | uint32_t hbqno; | |
3724 | uint32_t hbq_entry_index; | |
ed957684 | 3725 | |
92d7f7b0 JS |
3726 | /* Get a Mailbox buffer to setup mailbox |
3727 | * commands for HBA initialization | |
3728 | */ | |
ed957684 JS |
3729 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
3730 | ||
3731 | if (!pmb) | |
3732 | return -ENOMEM; | |
3733 | ||
04c68496 | 3734 | pmbox = &pmb->u.mb; |
ed957684 JS |
3735 | |
3736 | /* Initialize the struct lpfc_sli_hbq structure for each hbq */ | |
3737 | phba->link_state = LPFC_INIT_MBX_CMDS; | |
3163f725 | 3738 | phba->hbq_in_use = 1; |
ed957684 JS |
3739 | |
3740 | hbq_entry_index = 0; | |
3741 | for (hbqno = 0; hbqno < hbq_count; ++hbqno) { | |
3742 | phba->hbqs[hbqno].next_hbqPutIdx = 0; | |
3743 | phba->hbqs[hbqno].hbqPutIdx = 0; | |
3744 | phba->hbqs[hbqno].local_hbqGetIdx = 0; | |
3745 | phba->hbqs[hbqno].entry_count = | |
92d7f7b0 | 3746 | lpfc_hbq_defs[hbqno]->entry_count; |
51ef4c26 JS |
3747 | lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno], |
3748 | hbq_entry_index, pmb); | |
ed957684 JS |
3749 | hbq_entry_index += phba->hbqs[hbqno].entry_count; |
3750 | ||
3751 | if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { | |
3752 | /* Adapter failed to init, mbxCmd <cmd> CFG_RING, | |
3753 | mbxStatus <status>, ring <num> */ | |
3754 | ||
3755 | lpfc_printf_log(phba, KERN_ERR, | |
92d7f7b0 | 3756 | LOG_SLI | LOG_VPORT, |
e8b62011 | 3757 | "1805 Adapter failed to init. " |
ed957684 | 3758 | "Data: x%x x%x x%x\n", |
e8b62011 | 3759 | pmbox->mbxCommand, |
ed957684 JS |
3760 | pmbox->mbxStatus, hbqno); |
3761 | ||
3762 | phba->link_state = LPFC_HBA_ERROR; | |
3763 | mempool_free(pmb, phba->mbox_mem_pool); | |
ed957684 JS |
3764 | return ENXIO; |
3765 | } | |
3766 | } | |
3767 | phba->hbq_count = hbq_count; | |
3768 | ||
ed957684 JS |
3769 | mempool_free(pmb, phba->mbox_mem_pool); |
3770 | ||
92d7f7b0 | 3771 | /* Initially populate or replenish the HBQs */ |
d7c255b2 JS |
3772 | for (hbqno = 0; hbqno < hbq_count; ++hbqno) |
3773 | lpfc_sli_hbqbuf_init_hbqs(phba, hbqno); | |
ed957684 JS |
3774 | return 0; |
3775 | } | |
3776 | ||
4f774513 JS |
3777 | /** |
3778 | * lpfc_sli4_rb_setup - Initialize and post RBs to HBA | |
3779 | * @phba: Pointer to HBA context object. | |
3780 | * | |
3781 | * This function is called during the SLI initialization to configure | |
3782 | * all the HBQs and post buffers to the HBQ. The caller is not | |
3783 | * required to hold any locks. This function will return zero if successful | |
3784 | * else it will return negative error code. | |
3785 | **/ | |
3786 | static int | |
3787 | lpfc_sli4_rb_setup(struct lpfc_hba *phba) | |
3788 | { | |
3789 | phba->hbq_in_use = 1; | |
3790 | phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count; | |
3791 | phba->hbq_count = 1; | |
3792 | /* Initially populate or replenish the HBQs */ | |
3793 | lpfc_sli_hbqbuf_init_hbqs(phba, 0); | |
3794 | return 0; | |
3795 | } | |
3796 | ||
e59058c4 | 3797 | /** |
3621a710 | 3798 | * lpfc_sli_config_port - Issue config port mailbox command |
e59058c4 JS |
3799 | * @phba: Pointer to HBA context object. |
3800 | * @sli_mode: sli mode - 2/3 | |
3801 | * | |
3802 | * This function is called by the sli intialization code path | |
3803 | * to issue config_port mailbox command. This function restarts the | |
3804 | * HBA firmware and issues a config_port mailbox command to configure | |
3805 | * the SLI interface in the sli mode specified by sli_mode | |
3806 | * variable. The caller is not required to hold any locks. | |
3807 | * The function returns 0 if successful, else returns negative error | |
3808 | * code. | |
3809 | **/ | |
9399627f JS |
3810 | int |
3811 | lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode) | |
dea3101e | 3812 | { |
3813 | LPFC_MBOXQ_t *pmb; | |
3814 | uint32_t resetcount = 0, rc = 0, done = 0; | |
3815 | ||
3816 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
3817 | if (!pmb) { | |
2e0fef85 | 3818 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 3819 | return -ENOMEM; |
3820 | } | |
3821 | ||
ed957684 | 3822 | phba->sli_rev = sli_mode; |
dea3101e | 3823 | while (resetcount < 2 && !done) { |
2e0fef85 | 3824 | spin_lock_irq(&phba->hbalock); |
1c067a42 | 3825 | phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3826 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 | 3827 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 | 3828 | lpfc_sli_brdrestart(phba); |
dea3101e | 3829 | rc = lpfc_sli_chipset_init(phba); |
3830 | if (rc) | |
3831 | break; | |
3832 | ||
2e0fef85 | 3833 | spin_lock_irq(&phba->hbalock); |
1c067a42 | 3834 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3835 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 3836 | resetcount++; |
3837 | ||
ed957684 JS |
3838 | /* Call pre CONFIG_PORT mailbox command initialization. A |
3839 | * value of 0 means the call was successful. Any other | |
3840 | * nonzero value is a failure, but if ERESTART is returned, | |
3841 | * the driver may reset the HBA and try again. | |
3842 | */ | |
dea3101e | 3843 | rc = lpfc_config_port_prep(phba); |
3844 | if (rc == -ERESTART) { | |
ed957684 | 3845 | phba->link_state = LPFC_LINK_UNKNOWN; |
dea3101e | 3846 | continue; |
34b02dcd | 3847 | } else if (rc) |
dea3101e | 3848 | break; |
2e0fef85 | 3849 | phba->link_state = LPFC_INIT_MBX_CMDS; |
dea3101e | 3850 | lpfc_config_port(phba, pmb); |
3851 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
34b02dcd JS |
3852 | phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED | |
3853 | LPFC_SLI3_HBQ_ENABLED | | |
3854 | LPFC_SLI3_CRP_ENABLED | | |
e2a0a9d6 JS |
3855 | LPFC_SLI3_INB_ENABLED | |
3856 | LPFC_SLI3_BG_ENABLED); | |
ed957684 | 3857 | if (rc != MBX_SUCCESS) { |
dea3101e | 3858 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 3859 | "0442 Adapter failed to init, mbxCmd x%x " |
92d7f7b0 | 3860 | "CONFIG_PORT, mbxStatus x%x Data: x%x\n", |
04c68496 | 3861 | pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0); |
2e0fef85 | 3862 | spin_lock_irq(&phba->hbalock); |
04c68496 | 3863 | phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE; |
2e0fef85 JS |
3864 | spin_unlock_irq(&phba->hbalock); |
3865 | rc = -ENXIO; | |
04c68496 JS |
3866 | } else { |
3867 | /* Allow asynchronous mailbox command to go through */ | |
3868 | spin_lock_irq(&phba->hbalock); | |
3869 | phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK; | |
3870 | spin_unlock_irq(&phba->hbalock); | |
ed957684 | 3871 | done = 1; |
04c68496 | 3872 | } |
dea3101e | 3873 | } |
ed957684 JS |
3874 | if (!done) { |
3875 | rc = -EINVAL; | |
3876 | goto do_prep_failed; | |
3877 | } | |
04c68496 JS |
3878 | if (pmb->u.mb.un.varCfgPort.sli_mode == 3) { |
3879 | if (!pmb->u.mb.un.varCfgPort.cMA) { | |
34b02dcd JS |
3880 | rc = -ENXIO; |
3881 | goto do_prep_failed; | |
3882 | } | |
04c68496 | 3883 | if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) { |
34b02dcd | 3884 | phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; |
04c68496 JS |
3885 | phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi; |
3886 | phba->max_vports = (phba->max_vpi > phba->max_vports) ? | |
3887 | phba->max_vpi : phba->max_vports; | |
3888 | ||
34b02dcd JS |
3889 | } else |
3890 | phba->max_vpi = 0; | |
04c68496 JS |
3891 | if (pmb->u.mb.un.varCfgPort.gdss) |
3892 | phba->sli3_options |= LPFC_SLI3_DSS_ENABLED; | |
3893 | if (pmb->u.mb.un.varCfgPort.gerbm) | |
34b02dcd | 3894 | phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED; |
04c68496 | 3895 | if (pmb->u.mb.un.varCfgPort.gcrp) |
34b02dcd | 3896 | phba->sli3_options |= LPFC_SLI3_CRP_ENABLED; |
04c68496 | 3897 | if (pmb->u.mb.un.varCfgPort.ginb) { |
34b02dcd | 3898 | phba->sli3_options |= LPFC_SLI3_INB_ENABLED; |
8f34f4ce | 3899 | phba->hbq_get = phba->mbox->us.s3_inb_pgp.hbq_get; |
34b02dcd JS |
3900 | phba->port_gp = phba->mbox->us.s3_inb_pgp.port; |
3901 | phba->inb_ha_copy = &phba->mbox->us.s3_inb_pgp.ha_copy; | |
3902 | phba->inb_counter = &phba->mbox->us.s3_inb_pgp.counter; | |
3903 | phba->inb_last_counter = | |
3904 | phba->mbox->us.s3_inb_pgp.counter; | |
3905 | } else { | |
8f34f4ce | 3906 | phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get; |
34b02dcd JS |
3907 | phba->port_gp = phba->mbox->us.s3_pgp.port; |
3908 | phba->inb_ha_copy = NULL; | |
3909 | phba->inb_counter = NULL; | |
3910 | } | |
e2a0a9d6 JS |
3911 | |
3912 | if (phba->cfg_enable_bg) { | |
04c68496 | 3913 | if (pmb->u.mb.un.varCfgPort.gbg) |
e2a0a9d6 JS |
3914 | phba->sli3_options |= LPFC_SLI3_BG_ENABLED; |
3915 | else | |
3916 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
3917 | "0443 Adapter did not grant " | |
3918 | "BlockGuard\n"); | |
3919 | } | |
34b02dcd | 3920 | } else { |
8f34f4ce | 3921 | phba->hbq_get = NULL; |
34b02dcd JS |
3922 | phba->port_gp = phba->mbox->us.s2.port; |
3923 | phba->inb_ha_copy = NULL; | |
3924 | phba->inb_counter = NULL; | |
d7c255b2 | 3925 | phba->max_vpi = 0; |
ed957684 | 3926 | } |
92d7f7b0 | 3927 | do_prep_failed: |
ed957684 JS |
3928 | mempool_free(pmb, phba->mbox_mem_pool); |
3929 | return rc; | |
3930 | } | |
3931 | ||
e59058c4 JS |
3932 | |
3933 | /** | |
3621a710 | 3934 | * lpfc_sli_hba_setup - SLI intialization function |
e59058c4 JS |
3935 | * @phba: Pointer to HBA context object. |
3936 | * | |
3937 | * This function is the main SLI intialization function. This function | |
3938 | * is called by the HBA intialization code, HBA reset code and HBA | |
3939 | * error attention handler code. Caller is not required to hold any | |
3940 | * locks. This function issues config_port mailbox command to configure | |
3941 | * the SLI, setup iocb rings and HBQ rings. In the end the function | |
3942 | * calls the config_port_post function to issue init_link mailbox | |
3943 | * command and to start the discovery. The function will return zero | |
3944 | * if successful, else it will return negative error code. | |
3945 | **/ | |
ed957684 JS |
3946 | int |
3947 | lpfc_sli_hba_setup(struct lpfc_hba *phba) | |
3948 | { | |
3949 | uint32_t rc; | |
92d7f7b0 | 3950 | int mode = 3; |
ed957684 JS |
3951 | |
3952 | switch (lpfc_sli_mode) { | |
3953 | case 2: | |
78b2d852 | 3954 | if (phba->cfg_enable_npiv) { |
92d7f7b0 | 3955 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 | 3956 | "1824 NPIV enabled: Override lpfc_sli_mode " |
92d7f7b0 | 3957 | "parameter (%d) to auto (0).\n", |
e8b62011 | 3958 | lpfc_sli_mode); |
92d7f7b0 JS |
3959 | break; |
3960 | } | |
ed957684 JS |
3961 | mode = 2; |
3962 | break; | |
3963 | case 0: | |
3964 | case 3: | |
3965 | break; | |
3966 | default: | |
92d7f7b0 | 3967 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 JS |
3968 | "1819 Unrecognized lpfc_sli_mode " |
3969 | "parameter: %d.\n", lpfc_sli_mode); | |
ed957684 JS |
3970 | |
3971 | break; | |
3972 | } | |
3973 | ||
9399627f JS |
3974 | rc = lpfc_sli_config_port(phba, mode); |
3975 | ||
ed957684 | 3976 | if (rc && lpfc_sli_mode == 3) |
92d7f7b0 | 3977 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 JS |
3978 | "1820 Unable to select SLI-3. " |
3979 | "Not supported by adapter.\n"); | |
ed957684 | 3980 | if (rc && mode != 2) |
9399627f | 3981 | rc = lpfc_sli_config_port(phba, 2); |
ed957684 | 3982 | if (rc) |
dea3101e | 3983 | goto lpfc_sli_hba_setup_error; |
3984 | ||
0d878419 JS |
3985 | /* Enable PCIe device Advanced Error Reporting (AER) if configured */ |
3986 | if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) { | |
3987 | rc = pci_enable_pcie_error_reporting(phba->pcidev); | |
3988 | if (!rc) { | |
3989 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
3990 | "2709 This device supports " | |
3991 | "Advanced Error Reporting (AER)\n"); | |
3992 | spin_lock_irq(&phba->hbalock); | |
3993 | phba->hba_flag |= HBA_AER_ENABLED; | |
3994 | spin_unlock_irq(&phba->hbalock); | |
3995 | } else { | |
3996 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
3997 | "2708 This device does not support " | |
3998 | "Advanced Error Reporting (AER)\n"); | |
3999 | phba->cfg_aer_support = 0; | |
4000 | } | |
4001 | } | |
4002 | ||
ed957684 JS |
4003 | if (phba->sli_rev == 3) { |
4004 | phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE; | |
4005 | phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE; | |
ed957684 JS |
4006 | } else { |
4007 | phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE; | |
4008 | phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE; | |
92d7f7b0 | 4009 | phba->sli3_options = 0; |
ed957684 JS |
4010 | } |
4011 | ||
4012 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
e8b62011 JS |
4013 | "0444 Firmware in SLI %x mode. Max_vpi %d\n", |
4014 | phba->sli_rev, phba->max_vpi); | |
ed957684 | 4015 | rc = lpfc_sli_ring_map(phba); |
dea3101e | 4016 | |
4017 | if (rc) | |
4018 | goto lpfc_sli_hba_setup_error; | |
4019 | ||
9399627f | 4020 | /* Init HBQs */ |
ed957684 JS |
4021 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
4022 | rc = lpfc_sli_hbq_setup(phba); | |
4023 | if (rc) | |
4024 | goto lpfc_sli_hba_setup_error; | |
4025 | } | |
04c68496 | 4026 | spin_lock_irq(&phba->hbalock); |
dea3101e | 4027 | phba->sli.sli_flag |= LPFC_PROCESS_LA; |
04c68496 | 4028 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 4029 | |
4030 | rc = lpfc_config_port_post(phba); | |
4031 | if (rc) | |
4032 | goto lpfc_sli_hba_setup_error; | |
4033 | ||
ed957684 JS |
4034 | return rc; |
4035 | ||
92d7f7b0 | 4036 | lpfc_sli_hba_setup_error: |
2e0fef85 | 4037 | phba->link_state = LPFC_HBA_ERROR; |
ed957684 | 4038 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
e8b62011 | 4039 | "0445 Firmware initialization failed\n"); |
dea3101e | 4040 | return rc; |
4041 | } | |
4042 | ||
e59058c4 | 4043 | /** |
da0436e9 JS |
4044 | * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region |
4045 | * @phba: Pointer to HBA context object. | |
4046 | * @mboxq: mailbox pointer. | |
4047 | * This function issue a dump mailbox command to read config region | |
4048 | * 23 and parse the records in the region and populate driver | |
4049 | * data structure. | |
e59058c4 | 4050 | **/ |
da0436e9 JS |
4051 | static int |
4052 | lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba, | |
4053 | LPFC_MBOXQ_t *mboxq) | |
dea3101e | 4054 | { |
da0436e9 JS |
4055 | struct lpfc_dmabuf *mp; |
4056 | struct lpfc_mqe *mqe; | |
4057 | uint32_t data_length; | |
4058 | int rc; | |
dea3101e | 4059 | |
da0436e9 JS |
4060 | /* Program the default value of vlan_id and fc_map */ |
4061 | phba->valid_vlan = 0; | |
4062 | phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; | |
4063 | phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; | |
4064 | phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; | |
2e0fef85 | 4065 | |
da0436e9 JS |
4066 | mqe = &mboxq->u.mqe; |
4067 | if (lpfc_dump_fcoe_param(phba, mboxq)) | |
4068 | return -ENOMEM; | |
4069 | ||
4070 | mp = (struct lpfc_dmabuf *) mboxq->context1; | |
4071 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4072 | ||
4073 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
4074 | "(%d):2571 Mailbox cmd x%x Status x%x " | |
4075 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x " | |
4076 | "x%x x%x x%x x%x x%x x%x x%x x%x x%x " | |
4077 | "CQ: x%x x%x x%x x%x\n", | |
4078 | mboxq->vport ? mboxq->vport->vpi : 0, | |
4079 | bf_get(lpfc_mqe_command, mqe), | |
4080 | bf_get(lpfc_mqe_status, mqe), | |
4081 | mqe->un.mb_words[0], mqe->un.mb_words[1], | |
4082 | mqe->un.mb_words[2], mqe->un.mb_words[3], | |
4083 | mqe->un.mb_words[4], mqe->un.mb_words[5], | |
4084 | mqe->un.mb_words[6], mqe->un.mb_words[7], | |
4085 | mqe->un.mb_words[8], mqe->un.mb_words[9], | |
4086 | mqe->un.mb_words[10], mqe->un.mb_words[11], | |
4087 | mqe->un.mb_words[12], mqe->un.mb_words[13], | |
4088 | mqe->un.mb_words[14], mqe->un.mb_words[15], | |
4089 | mqe->un.mb_words[16], mqe->un.mb_words[50], | |
4090 | mboxq->mcqe.word0, | |
4091 | mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1, | |
4092 | mboxq->mcqe.trailer); | |
4093 | ||
4094 | if (rc) { | |
4095 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
4096 | kfree(mp); | |
4097 | return -EIO; | |
4098 | } | |
4099 | data_length = mqe->un.mb_words[5]; | |
a0c87cbd | 4100 | if (data_length > DMP_RGN23_SIZE) { |
d11e31dd JS |
4101 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
4102 | kfree(mp); | |
da0436e9 | 4103 | return -EIO; |
d11e31dd | 4104 | } |
dea3101e | 4105 | |
da0436e9 JS |
4106 | lpfc_parse_fcoe_conf(phba, mp->virt, data_length); |
4107 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
4108 | kfree(mp); | |
4109 | return 0; | |
4110 | } | |
e59058c4 JS |
4111 | |
4112 | /** | |
da0436e9 JS |
4113 | * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data |
4114 | * @phba: pointer to lpfc hba data structure. | |
4115 | * @mboxq: pointer to the LPFC_MBOXQ_t structure. | |
4116 | * @vpd: pointer to the memory to hold resulting port vpd data. | |
4117 | * @vpd_size: On input, the number of bytes allocated to @vpd. | |
4118 | * On output, the number of data bytes in @vpd. | |
e59058c4 | 4119 | * |
da0436e9 JS |
4120 | * This routine executes a READ_REV SLI4 mailbox command. In |
4121 | * addition, this routine gets the port vpd data. | |
4122 | * | |
4123 | * Return codes | |
af901ca1 | 4124 | * 0 - successful |
da0436e9 | 4125 | * ENOMEM - could not allocated memory. |
e59058c4 | 4126 | **/ |
da0436e9 JS |
4127 | static int |
4128 | lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, | |
4129 | uint8_t *vpd, uint32_t *vpd_size) | |
dea3101e | 4130 | { |
da0436e9 JS |
4131 | int rc = 0; |
4132 | uint32_t dma_size; | |
4133 | struct lpfc_dmabuf *dmabuf; | |
4134 | struct lpfc_mqe *mqe; | |
dea3101e | 4135 | |
da0436e9 JS |
4136 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
4137 | if (!dmabuf) | |
4138 | return -ENOMEM; | |
4139 | ||
4140 | /* | |
4141 | * Get a DMA buffer for the vpd data resulting from the READ_REV | |
4142 | * mailbox command. | |
a257bf90 | 4143 | */ |
da0436e9 JS |
4144 | dma_size = *vpd_size; |
4145 | dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, | |
4146 | dma_size, | |
4147 | &dmabuf->phys, | |
4148 | GFP_KERNEL); | |
4149 | if (!dmabuf->virt) { | |
4150 | kfree(dmabuf); | |
4151 | return -ENOMEM; | |
a257bf90 | 4152 | } |
da0436e9 | 4153 | memset(dmabuf->virt, 0, dma_size); |
a257bf90 | 4154 | |
da0436e9 JS |
4155 | /* |
4156 | * The SLI4 implementation of READ_REV conflicts at word1, | |
4157 | * bits 31:16 and SLI4 adds vpd functionality not present | |
4158 | * in SLI3. This code corrects the conflicts. | |
1dcb58e5 | 4159 | */ |
da0436e9 JS |
4160 | lpfc_read_rev(phba, mboxq); |
4161 | mqe = &mboxq->u.mqe; | |
4162 | mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys); | |
4163 | mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys); | |
4164 | mqe->un.read_rev.word1 &= 0x0000FFFF; | |
4165 | bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1); | |
4166 | bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size); | |
4167 | ||
4168 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4169 | if (rc) { | |
4170 | dma_free_coherent(&phba->pcidev->dev, dma_size, | |
4171 | dmabuf->virt, dmabuf->phys); | |
def9c7a9 | 4172 | kfree(dmabuf); |
da0436e9 JS |
4173 | return -EIO; |
4174 | } | |
1dcb58e5 | 4175 | |
da0436e9 JS |
4176 | /* |
4177 | * The available vpd length cannot be bigger than the | |
4178 | * DMA buffer passed to the port. Catch the less than | |
4179 | * case and update the caller's size. | |
4180 | */ | |
4181 | if (mqe->un.read_rev.avail_vpd_len < *vpd_size) | |
4182 | *vpd_size = mqe->un.read_rev.avail_vpd_len; | |
3772a991 | 4183 | |
da0436e9 JS |
4184 | lpfc_sli_pcimem_bcopy(dmabuf->virt, vpd, *vpd_size); |
4185 | dma_free_coherent(&phba->pcidev->dev, dma_size, | |
4186 | dmabuf->virt, dmabuf->phys); | |
4187 | kfree(dmabuf); | |
4188 | return 0; | |
dea3101e | 4189 | } |
4190 | ||
e59058c4 | 4191 | /** |
da0436e9 JS |
4192 | * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues |
4193 | * @phba: pointer to lpfc hba data structure. | |
e59058c4 | 4194 | * |
da0436e9 JS |
4195 | * This routine is called to explicitly arm the SLI4 device's completion and |
4196 | * event queues | |
4197 | **/ | |
4198 | static void | |
4199 | lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba) | |
4200 | { | |
4201 | uint8_t fcp_eqidx; | |
4202 | ||
4203 | lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM); | |
4204 | lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM); | |
da0436e9 JS |
4205 | for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) |
4206 | lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx], | |
4207 | LPFC_QUEUE_REARM); | |
4208 | lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM); | |
4209 | for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) | |
4210 | lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx], | |
4211 | LPFC_QUEUE_REARM); | |
4212 | } | |
4213 | ||
4214 | /** | |
4215 | * lpfc_sli4_hba_setup - SLI4 device intialization PCI function | |
4216 | * @phba: Pointer to HBA context object. | |
4217 | * | |
4218 | * This function is the main SLI4 device intialization PCI function. This | |
4219 | * function is called by the HBA intialization code, HBA reset code and | |
4220 | * HBA error attention handler code. Caller is not required to hold any | |
4221 | * locks. | |
4222 | **/ | |
4223 | int | |
4224 | lpfc_sli4_hba_setup(struct lpfc_hba *phba) | |
4225 | { | |
4226 | int rc; | |
4227 | LPFC_MBOXQ_t *mboxq; | |
4228 | struct lpfc_mqe *mqe; | |
4229 | uint8_t *vpd; | |
4230 | uint32_t vpd_size; | |
4231 | uint32_t ftr_rsp = 0; | |
4232 | struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport); | |
4233 | struct lpfc_vport *vport = phba->pport; | |
4234 | struct lpfc_dmabuf *mp; | |
4235 | ||
4236 | /* Perform a PCI function reset to start from clean */ | |
4237 | rc = lpfc_pci_function_reset(phba); | |
4238 | if (unlikely(rc)) | |
4239 | return -ENODEV; | |
4240 | ||
4241 | /* Check the HBA Host Status Register for readyness */ | |
4242 | rc = lpfc_sli4_post_status_check(phba); | |
4243 | if (unlikely(rc)) | |
4244 | return -ENODEV; | |
4245 | else { | |
4246 | spin_lock_irq(&phba->hbalock); | |
4247 | phba->sli.sli_flag |= LPFC_SLI_ACTIVE; | |
4248 | spin_unlock_irq(&phba->hbalock); | |
4249 | } | |
4250 | ||
4251 | /* | |
4252 | * Allocate a single mailbox container for initializing the | |
4253 | * port. | |
4254 | */ | |
4255 | mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
4256 | if (!mboxq) | |
4257 | return -ENOMEM; | |
4258 | ||
4259 | /* | |
4260 | * Continue initialization with default values even if driver failed | |
4261 | * to read FCoE param config regions | |
4262 | */ | |
4263 | if (lpfc_sli4_read_fcoe_params(phba, mboxq)) | |
4264 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT, | |
e4e74273 | 4265 | "2570 Failed to read FCoE parameters\n"); |
da0436e9 JS |
4266 | |
4267 | /* Issue READ_REV to collect vpd and FW information. */ | |
4268 | vpd_size = PAGE_SIZE; | |
4269 | vpd = kzalloc(vpd_size, GFP_KERNEL); | |
4270 | if (!vpd) { | |
4271 | rc = -ENOMEM; | |
4272 | goto out_free_mbox; | |
4273 | } | |
4274 | ||
4275 | rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size); | |
4276 | if (unlikely(rc)) | |
4277 | goto out_free_vpd; | |
4278 | ||
4279 | mqe = &mboxq->u.mqe; | |
f1126688 JS |
4280 | phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev); |
4281 | if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) | |
4282 | phba->hba_flag |= HBA_FCOE_SUPPORT; | |
45ed1190 JS |
4283 | |
4284 | if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) == | |
4285 | LPFC_DCBX_CEE_MODE) | |
4286 | phba->hba_flag |= HBA_FIP_SUPPORT; | |
4287 | else | |
4288 | phba->hba_flag &= ~HBA_FIP_SUPPORT; | |
4289 | ||
f1126688 JS |
4290 | if (phba->sli_rev != LPFC_SLI_REV4 || |
4291 | !(phba->hba_flag & HBA_FCOE_SUPPORT)) { | |
da0436e9 JS |
4292 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4293 | "0376 READ_REV Error. SLI Level %d " | |
4294 | "FCoE enabled %d\n", | |
f1126688 | 4295 | phba->sli_rev, phba->hba_flag & HBA_FCOE_SUPPORT); |
da0436e9 JS |
4296 | rc = -EIO; |
4297 | goto out_free_vpd; | |
4298 | } | |
da0436e9 JS |
4299 | /* |
4300 | * Evaluate the read rev and vpd data. Populate the driver | |
4301 | * state with the results. If this routine fails, the failure | |
4302 | * is not fatal as the driver will use generic values. | |
4303 | */ | |
4304 | rc = lpfc_parse_vpd(phba, vpd, vpd_size); | |
4305 | if (unlikely(!rc)) { | |
4306 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4307 | "0377 Error %d parsing vpd. " | |
4308 | "Using defaults.\n", rc); | |
4309 | rc = 0; | |
4310 | } | |
4311 | ||
f1126688 JS |
4312 | /* Save information as VPD data */ |
4313 | phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev; | |
4314 | phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev; | |
4315 | phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev; | |
4316 | phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high, | |
4317 | &mqe->un.read_rev); | |
4318 | phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low, | |
4319 | &mqe->un.read_rev); | |
4320 | phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high, | |
4321 | &mqe->un.read_rev); | |
4322 | phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low, | |
4323 | &mqe->un.read_rev); | |
4324 | phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev; | |
4325 | memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16); | |
4326 | phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev; | |
4327 | memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16); | |
4328 | phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev; | |
4329 | memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16); | |
4330 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
4331 | "(%d):0380 READ_REV Status x%x " | |
4332 | "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n", | |
4333 | mboxq->vport ? mboxq->vport->vpi : 0, | |
4334 | bf_get(lpfc_mqe_status, mqe), | |
4335 | phba->vpd.rev.opFwName, | |
4336 | phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow, | |
4337 | phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow); | |
da0436e9 JS |
4338 | |
4339 | /* | |
4340 | * Discover the port's supported feature set and match it against the | |
4341 | * hosts requests. | |
4342 | */ | |
4343 | lpfc_request_features(phba, mboxq); | |
4344 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4345 | if (unlikely(rc)) { | |
4346 | rc = -EIO; | |
4347 | goto out_free_vpd; | |
4348 | } | |
4349 | ||
4350 | /* | |
4351 | * The port must support FCP initiator mode as this is the | |
4352 | * only mode running in the host. | |
4353 | */ | |
4354 | if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) { | |
4355 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, | |
4356 | "0378 No support for fcpi mode.\n"); | |
4357 | ftr_rsp++; | |
4358 | } | |
4359 | ||
4360 | /* | |
4361 | * If the port cannot support the host's requested features | |
4362 | * then turn off the global config parameters to disable the | |
4363 | * feature in the driver. This is not a fatal error. | |
4364 | */ | |
4365 | if ((phba->cfg_enable_bg) && | |
4366 | !(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))) | |
4367 | ftr_rsp++; | |
4368 | ||
4369 | if (phba->max_vpi && phba->cfg_enable_npiv && | |
4370 | !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs))) | |
4371 | ftr_rsp++; | |
4372 | ||
4373 | if (ftr_rsp) { | |
4374 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, | |
4375 | "0379 Feature Mismatch Data: x%08x %08x " | |
4376 | "x%x x%x x%x\n", mqe->un.req_ftrs.word2, | |
4377 | mqe->un.req_ftrs.word3, phba->cfg_enable_bg, | |
4378 | phba->cfg_enable_npiv, phba->max_vpi); | |
4379 | if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))) | |
4380 | phba->cfg_enable_bg = 0; | |
4381 | if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs))) | |
4382 | phba->cfg_enable_npiv = 0; | |
4383 | } | |
4384 | ||
4385 | /* These SLI3 features are assumed in SLI4 */ | |
4386 | spin_lock_irq(&phba->hbalock); | |
4387 | phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED); | |
4388 | spin_unlock_irq(&phba->hbalock); | |
4389 | ||
4390 | /* Read the port's service parameters. */ | |
4391 | lpfc_read_sparam(phba, mboxq, vport->vpi); | |
4392 | mboxq->vport = vport; | |
4393 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4394 | mp = (struct lpfc_dmabuf *) mboxq->context1; | |
4395 | if (rc == MBX_SUCCESS) { | |
4396 | memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm)); | |
4397 | rc = 0; | |
4398 | } | |
4399 | ||
4400 | /* | |
4401 | * This memory was allocated by the lpfc_read_sparam routine. Release | |
4402 | * it to the mbuf pool. | |
4403 | */ | |
4404 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
4405 | kfree(mp); | |
4406 | mboxq->context1 = NULL; | |
4407 | if (unlikely(rc)) { | |
4408 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4409 | "0382 READ_SPARAM command failed " | |
4410 | "status %d, mbxStatus x%x\n", | |
4411 | rc, bf_get(lpfc_mqe_status, mqe)); | |
4412 | phba->link_state = LPFC_HBA_ERROR; | |
4413 | rc = -EIO; | |
4414 | goto out_free_vpd; | |
4415 | } | |
4416 | ||
4417 | if (phba->cfg_soft_wwnn) | |
4418 | u64_to_wwn(phba->cfg_soft_wwnn, | |
4419 | vport->fc_sparam.nodeName.u.wwn); | |
4420 | if (phba->cfg_soft_wwpn) | |
4421 | u64_to_wwn(phba->cfg_soft_wwpn, | |
4422 | vport->fc_sparam.portName.u.wwn); | |
4423 | memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, | |
4424 | sizeof(struct lpfc_name)); | |
4425 | memcpy(&vport->fc_portname, &vport->fc_sparam.portName, | |
4426 | sizeof(struct lpfc_name)); | |
4427 | ||
4428 | /* Update the fc_host data structures with new wwn. */ | |
4429 | fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); | |
4430 | fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); | |
4431 | ||
4432 | /* Register SGL pool to the device using non-embedded mailbox command */ | |
4433 | rc = lpfc_sli4_post_sgl_list(phba); | |
4434 | if (unlikely(rc)) { | |
4435 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
6a9c52cf JS |
4436 | "0582 Error %d during sgl post operation\n", |
4437 | rc); | |
da0436e9 JS |
4438 | rc = -ENODEV; |
4439 | goto out_free_vpd; | |
4440 | } | |
4441 | ||
4442 | /* Register SCSI SGL pool to the device */ | |
4443 | rc = lpfc_sli4_repost_scsi_sgl_list(phba); | |
4444 | if (unlikely(rc)) { | |
4445 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, | |
6a9c52cf JS |
4446 | "0383 Error %d during scsi sgl post " |
4447 | "operation\n", rc); | |
da0436e9 JS |
4448 | /* Some Scsi buffers were moved to the abort scsi list */ |
4449 | /* A pci function reset will repost them */ | |
4450 | rc = -ENODEV; | |
4451 | goto out_free_vpd; | |
4452 | } | |
4453 | ||
4454 | /* Post the rpi header region to the device. */ | |
4455 | rc = lpfc_sli4_post_all_rpi_hdrs(phba); | |
4456 | if (unlikely(rc)) { | |
4457 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4458 | "0393 Error %d during rpi post operation\n", | |
4459 | rc); | |
4460 | rc = -ENODEV; | |
4461 | goto out_free_vpd; | |
4462 | } | |
da0436e9 JS |
4463 | |
4464 | /* Set up all the queues to the device */ | |
4465 | rc = lpfc_sli4_queue_setup(phba); | |
4466 | if (unlikely(rc)) { | |
4467 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4468 | "0381 Error %d during queue setup.\n ", rc); | |
4469 | goto out_stop_timers; | |
4470 | } | |
4471 | ||
4472 | /* Arm the CQs and then EQs on device */ | |
4473 | lpfc_sli4_arm_cqeq_intr(phba); | |
4474 | ||
4475 | /* Indicate device interrupt mode */ | |
4476 | phba->sli4_hba.intr_enable = 1; | |
4477 | ||
4478 | /* Allow asynchronous mailbox command to go through */ | |
4479 | spin_lock_irq(&phba->hbalock); | |
4480 | phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK; | |
4481 | spin_unlock_irq(&phba->hbalock); | |
4482 | ||
4483 | /* Post receive buffers to the device */ | |
4484 | lpfc_sli4_rb_setup(phba); | |
4485 | ||
4486 | /* Start the ELS watchdog timer */ | |
8fa38513 JS |
4487 | mod_timer(&vport->els_tmofunc, |
4488 | jiffies + HZ * (phba->fc_ratov * 2)); | |
da0436e9 JS |
4489 | |
4490 | /* Start heart beat timer */ | |
4491 | mod_timer(&phba->hb_tmofunc, | |
4492 | jiffies + HZ * LPFC_HB_MBOX_INTERVAL); | |
4493 | phba->hb_outstanding = 0; | |
4494 | phba->last_completion_time = jiffies; | |
4495 | ||
4496 | /* Start error attention (ERATT) polling timer */ | |
4497 | mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); | |
4498 | ||
4499 | /* | |
4500 | * The port is ready, set the host's link state to LINK_DOWN | |
4501 | * in preparation for link interrupts. | |
4502 | */ | |
4503 | lpfc_init_link(phba, mboxq, phba->cfg_topology, phba->cfg_link_speed); | |
4504 | mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
4505 | lpfc_set_loopback_flag(phba); | |
4506 | /* Change driver state to LPFC_LINK_DOWN right before init link */ | |
4507 | spin_lock_irq(&phba->hbalock); | |
4508 | phba->link_state = LPFC_LINK_DOWN; | |
4509 | spin_unlock_irq(&phba->hbalock); | |
4510 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
4511 | if (unlikely(rc != MBX_NOT_FINISHED)) { | |
4512 | kfree(vpd); | |
4513 | return 0; | |
4514 | } else | |
4515 | rc = -EIO; | |
4516 | ||
4517 | /* Unset all the queues set up in this routine when error out */ | |
4518 | if (rc) | |
4519 | lpfc_sli4_queue_unset(phba); | |
4520 | ||
4521 | out_stop_timers: | |
4522 | if (rc) | |
4523 | lpfc_stop_hba_timers(phba); | |
4524 | out_free_vpd: | |
4525 | kfree(vpd); | |
4526 | out_free_mbox: | |
4527 | mempool_free(mboxq, phba->mbox_mem_pool); | |
4528 | return rc; | |
4529 | } | |
4530 | ||
4531 | /** | |
4532 | * lpfc_mbox_timeout - Timeout call back function for mbox timer | |
4533 | * @ptr: context object - pointer to hba structure. | |
4534 | * | |
4535 | * This is the callback function for mailbox timer. The mailbox | |
4536 | * timer is armed when a new mailbox command is issued and the timer | |
4537 | * is deleted when the mailbox complete. The function is called by | |
4538 | * the kernel timer code when a mailbox does not complete within | |
4539 | * expected time. This function wakes up the worker thread to | |
4540 | * process the mailbox timeout and returns. All the processing is | |
4541 | * done by the worker thread function lpfc_mbox_timeout_handler. | |
4542 | **/ | |
4543 | void | |
4544 | lpfc_mbox_timeout(unsigned long ptr) | |
4545 | { | |
4546 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; | |
4547 | unsigned long iflag; | |
4548 | uint32_t tmo_posted; | |
4549 | ||
4550 | spin_lock_irqsave(&phba->pport->work_port_lock, iflag); | |
4551 | tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO; | |
4552 | if (!tmo_posted) | |
4553 | phba->pport->work_port_events |= WORKER_MBOX_TMO; | |
4554 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); | |
4555 | ||
4556 | if (!tmo_posted) | |
4557 | lpfc_worker_wake_up(phba); | |
4558 | return; | |
4559 | } | |
4560 | ||
4561 | ||
4562 | /** | |
4563 | * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout | |
4564 | * @phba: Pointer to HBA context object. | |
4565 | * | |
4566 | * This function is called from worker thread when a mailbox command times out. | |
4567 | * The caller is not required to hold any locks. This function will reset the | |
4568 | * HBA and recover all the pending commands. | |
4569 | **/ | |
4570 | void | |
4571 | lpfc_mbox_timeout_handler(struct lpfc_hba *phba) | |
4572 | { | |
4573 | LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active; | |
04c68496 | 4574 | MAILBOX_t *mb = &pmbox->u.mb; |
da0436e9 JS |
4575 | struct lpfc_sli *psli = &phba->sli; |
4576 | struct lpfc_sli_ring *pring; | |
4577 | ||
4578 | /* Check the pmbox pointer first. There is a race condition | |
4579 | * between the mbox timeout handler getting executed in the | |
4580 | * worklist and the mailbox actually completing. When this | |
4581 | * race condition occurs, the mbox_active will be NULL. | |
4582 | */ | |
4583 | spin_lock_irq(&phba->hbalock); | |
4584 | if (pmbox == NULL) { | |
4585 | lpfc_printf_log(phba, KERN_WARNING, | |
4586 | LOG_MBOX | LOG_SLI, | |
4587 | "0353 Active Mailbox cleared - mailbox timeout " | |
4588 | "exiting\n"); | |
4589 | spin_unlock_irq(&phba->hbalock); | |
4590 | return; | |
4591 | } | |
4592 | ||
4593 | /* Mbox cmd <mbxCommand> timeout */ | |
4594 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4595 | "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n", | |
4596 | mb->mbxCommand, | |
4597 | phba->pport->port_state, | |
4598 | phba->sli.sli_flag, | |
4599 | phba->sli.mbox_active); | |
4600 | spin_unlock_irq(&phba->hbalock); | |
4601 | ||
4602 | /* Setting state unknown so lpfc_sli_abort_iocb_ring | |
4603 | * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing | |
4604 | * it to fail all oustanding SCSI IO. | |
4605 | */ | |
4606 | spin_lock_irq(&phba->pport->work_port_lock); | |
4607 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; | |
4608 | spin_unlock_irq(&phba->pport->work_port_lock); | |
4609 | spin_lock_irq(&phba->hbalock); | |
4610 | phba->link_state = LPFC_LINK_UNKNOWN; | |
f4b4c68f | 4611 | psli->sli_flag &= ~LPFC_SLI_ACTIVE; |
da0436e9 JS |
4612 | spin_unlock_irq(&phba->hbalock); |
4613 | ||
4614 | pring = &psli->ring[psli->fcp_ring]; | |
4615 | lpfc_sli_abort_iocb_ring(phba, pring); | |
4616 | ||
4617 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4618 | "0345 Resetting board due to mailbox timeout\n"); | |
4619 | ||
4620 | /* Reset the HBA device */ | |
4621 | lpfc_reset_hba(phba); | |
4622 | } | |
4623 | ||
4624 | /** | |
4625 | * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware | |
4626 | * @phba: Pointer to HBA context object. | |
4627 | * @pmbox: Pointer to mailbox object. | |
4628 | * @flag: Flag indicating how the mailbox need to be processed. | |
4629 | * | |
4630 | * This function is called by discovery code and HBA management code | |
4631 | * to submit a mailbox command to firmware with SLI-3 interface spec. This | |
4632 | * function gets the hbalock to protect the data structures. | |
4633 | * The mailbox command can be submitted in polling mode, in which case | |
4634 | * this function will wait in a polling loop for the completion of the | |
4635 | * mailbox. | |
4636 | * If the mailbox is submitted in no_wait mode (not polling) the | |
4637 | * function will submit the command and returns immediately without waiting | |
4638 | * for the mailbox completion. The no_wait is supported only when HBA | |
4639 | * is in SLI2/SLI3 mode - interrupts are enabled. | |
4640 | * The SLI interface allows only one mailbox pending at a time. If the | |
4641 | * mailbox is issued in polling mode and there is already a mailbox | |
4642 | * pending, then the function will return an error. If the mailbox is issued | |
4643 | * in NO_WAIT mode and there is a mailbox pending already, the function | |
4644 | * will return MBX_BUSY after queuing the mailbox into mailbox queue. | |
4645 | * The sli layer owns the mailbox object until the completion of mailbox | |
4646 | * command if this function return MBX_BUSY or MBX_SUCCESS. For all other | |
4647 | * return codes the caller owns the mailbox command after the return of | |
4648 | * the function. | |
e59058c4 | 4649 | **/ |
3772a991 JS |
4650 | static int |
4651 | lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, | |
4652 | uint32_t flag) | |
dea3101e | 4653 | { |
dea3101e | 4654 | MAILBOX_t *mb; |
2e0fef85 | 4655 | struct lpfc_sli *psli = &phba->sli; |
dea3101e | 4656 | uint32_t status, evtctr; |
4657 | uint32_t ha_copy; | |
4658 | int i; | |
09372820 | 4659 | unsigned long timeout; |
dea3101e | 4660 | unsigned long drvr_flag = 0; |
34b02dcd | 4661 | uint32_t word0, ldata; |
dea3101e | 4662 | void __iomem *to_slim; |
58da1ffb JS |
4663 | int processing_queue = 0; |
4664 | ||
4665 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
4666 | if (!pmbox) { | |
8568a4d2 | 4667 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
58da1ffb | 4668 | /* processing mbox queue from intr_handler */ |
3772a991 JS |
4669 | if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) { |
4670 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4671 | return MBX_SUCCESS; | |
4672 | } | |
58da1ffb | 4673 | processing_queue = 1; |
58da1ffb JS |
4674 | pmbox = lpfc_mbox_get(phba); |
4675 | if (!pmbox) { | |
4676 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4677 | return MBX_SUCCESS; | |
4678 | } | |
4679 | } | |
dea3101e | 4680 | |
ed957684 | 4681 | if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl && |
92d7f7b0 | 4682 | pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) { |
ed957684 | 4683 | if(!pmbox->vport) { |
58da1ffb | 4684 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
ed957684 | 4685 | lpfc_printf_log(phba, KERN_ERR, |
92d7f7b0 | 4686 | LOG_MBOX | LOG_VPORT, |
e8b62011 | 4687 | "1806 Mbox x%x failed. No vport\n", |
3772a991 | 4688 | pmbox->u.mb.mbxCommand); |
ed957684 | 4689 | dump_stack(); |
58da1ffb | 4690 | goto out_not_finished; |
ed957684 JS |
4691 | } |
4692 | } | |
4693 | ||
8d63f375 | 4694 | /* If the PCI channel is in offline state, do not post mbox. */ |
58da1ffb JS |
4695 | if (unlikely(pci_channel_offline(phba->pcidev))) { |
4696 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4697 | goto out_not_finished; | |
4698 | } | |
8d63f375 | 4699 | |
a257bf90 JS |
4700 | /* If HBA has a deferred error attention, fail the iocb. */ |
4701 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
4702 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4703 | goto out_not_finished; | |
4704 | } | |
4705 | ||
dea3101e | 4706 | psli = &phba->sli; |
92d7f7b0 | 4707 | |
3772a991 | 4708 | mb = &pmbox->u.mb; |
dea3101e | 4709 | status = MBX_SUCCESS; |
4710 | ||
2e0fef85 JS |
4711 | if (phba->link_state == LPFC_HBA_ERROR) { |
4712 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
41415862 JW |
4713 | |
4714 | /* Mbox command <mbxCommand> cannot issue */ | |
3772a991 JS |
4715 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4716 | "(%d):0311 Mailbox command x%x cannot " | |
4717 | "issue Data: x%x x%x\n", | |
4718 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4719 | pmbox->u.mb.mbxCommand, psli->sli_flag, flag); | |
58da1ffb | 4720 | goto out_not_finished; |
41415862 JW |
4721 | } |
4722 | ||
9290831f JS |
4723 | if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT && |
4724 | !(readl(phba->HCregaddr) & HC_MBINT_ENA)) { | |
2e0fef85 | 4725 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
3772a991 JS |
4726 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4727 | "(%d):2528 Mailbox command x%x cannot " | |
4728 | "issue Data: x%x x%x\n", | |
4729 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4730 | pmbox->u.mb.mbxCommand, psli->sli_flag, flag); | |
58da1ffb | 4731 | goto out_not_finished; |
9290831f JS |
4732 | } |
4733 | ||
dea3101e | 4734 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { |
4735 | /* Polling for a mbox command when another one is already active | |
4736 | * is not allowed in SLI. Also, the driver must have established | |
4737 | * SLI2 mode to queue and process multiple mbox commands. | |
4738 | */ | |
4739 | ||
4740 | if (flag & MBX_POLL) { | |
2e0fef85 | 4741 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 4742 | |
4743 | /* Mbox command <mbxCommand> cannot issue */ | |
3772a991 JS |
4744 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4745 | "(%d):2529 Mailbox command x%x " | |
4746 | "cannot issue Data: x%x x%x\n", | |
4747 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4748 | pmbox->u.mb.mbxCommand, | |
4749 | psli->sli_flag, flag); | |
58da1ffb | 4750 | goto out_not_finished; |
dea3101e | 4751 | } |
4752 | ||
3772a991 | 4753 | if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) { |
2e0fef85 | 4754 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 4755 | /* Mbox command <mbxCommand> cannot issue */ |
3772a991 JS |
4756 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4757 | "(%d):2530 Mailbox command x%x " | |
4758 | "cannot issue Data: x%x x%x\n", | |
4759 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4760 | pmbox->u.mb.mbxCommand, | |
4761 | psli->sli_flag, flag); | |
58da1ffb | 4762 | goto out_not_finished; |
dea3101e | 4763 | } |
4764 | ||
dea3101e | 4765 | /* Another mailbox command is still being processed, queue this |
4766 | * command to be processed later. | |
4767 | */ | |
4768 | lpfc_mbox_put(phba, pmbox); | |
4769 | ||
4770 | /* Mbox cmd issue - BUSY */ | |
ed957684 | 4771 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 4772 | "(%d):0308 Mbox cmd issue - BUSY Data: " |
92d7f7b0 | 4773 | "x%x x%x x%x x%x\n", |
92d7f7b0 JS |
4774 | pmbox->vport ? pmbox->vport->vpi : 0xffffff, |
4775 | mb->mbxCommand, phba->pport->port_state, | |
4776 | psli->sli_flag, flag); | |
dea3101e | 4777 | |
4778 | psli->slistat.mbox_busy++; | |
2e0fef85 | 4779 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 4780 | |
858c9f6c JS |
4781 | if (pmbox->vport) { |
4782 | lpfc_debugfs_disc_trc(pmbox->vport, | |
4783 | LPFC_DISC_TRC_MBOX_VPORT, | |
4784 | "MBOX Bsy vport: cmd:x%x mb:x%x x%x", | |
4785 | (uint32_t)mb->mbxCommand, | |
4786 | mb->un.varWords[0], mb->un.varWords[1]); | |
4787 | } | |
4788 | else { | |
4789 | lpfc_debugfs_disc_trc(phba->pport, | |
4790 | LPFC_DISC_TRC_MBOX, | |
4791 | "MBOX Bsy: cmd:x%x mb:x%x x%x", | |
4792 | (uint32_t)mb->mbxCommand, | |
4793 | mb->un.varWords[0], mb->un.varWords[1]); | |
4794 | } | |
4795 | ||
2e0fef85 | 4796 | return MBX_BUSY; |
dea3101e | 4797 | } |
4798 | ||
dea3101e | 4799 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
4800 | ||
4801 | /* If we are not polling, we MUST be in SLI2 mode */ | |
4802 | if (flag != MBX_POLL) { | |
3772a991 | 4803 | if (!(psli->sli_flag & LPFC_SLI_ACTIVE) && |
41415862 | 4804 | (mb->mbxCommand != MBX_KILL_BOARD)) { |
dea3101e | 4805 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 4806 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 4807 | /* Mbox command <mbxCommand> cannot issue */ |
3772a991 JS |
4808 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4809 | "(%d):2531 Mailbox command x%x " | |
4810 | "cannot issue Data: x%x x%x\n", | |
4811 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4812 | pmbox->u.mb.mbxCommand, | |
4813 | psli->sli_flag, flag); | |
58da1ffb | 4814 | goto out_not_finished; |
dea3101e | 4815 | } |
4816 | /* timeout active mbox command */ | |
a309a6b6 JS |
4817 | mod_timer(&psli->mbox_tmo, (jiffies + |
4818 | (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand)))); | |
dea3101e | 4819 | } |
4820 | ||
4821 | /* Mailbox cmd <cmd> issue */ | |
ed957684 | 4822 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 4823 | "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x " |
92d7f7b0 | 4824 | "x%x\n", |
e8b62011 | 4825 | pmbox->vport ? pmbox->vport->vpi : 0, |
92d7f7b0 JS |
4826 | mb->mbxCommand, phba->pport->port_state, |
4827 | psli->sli_flag, flag); | |
dea3101e | 4828 | |
858c9f6c JS |
4829 | if (mb->mbxCommand != MBX_HEARTBEAT) { |
4830 | if (pmbox->vport) { | |
4831 | lpfc_debugfs_disc_trc(pmbox->vport, | |
4832 | LPFC_DISC_TRC_MBOX_VPORT, | |
4833 | "MBOX Send vport: cmd:x%x mb:x%x x%x", | |
4834 | (uint32_t)mb->mbxCommand, | |
4835 | mb->un.varWords[0], mb->un.varWords[1]); | |
4836 | } | |
4837 | else { | |
4838 | lpfc_debugfs_disc_trc(phba->pport, | |
4839 | LPFC_DISC_TRC_MBOX, | |
4840 | "MBOX Send: cmd:x%x mb:x%x x%x", | |
4841 | (uint32_t)mb->mbxCommand, | |
4842 | mb->un.varWords[0], mb->un.varWords[1]); | |
4843 | } | |
4844 | } | |
4845 | ||
dea3101e | 4846 | psli->slistat.mbox_cmd++; |
4847 | evtctr = psli->slistat.mbox_event; | |
4848 | ||
4849 | /* next set own bit for the adapter and copy over command word */ | |
4850 | mb->mbxOwner = OWN_CHIP; | |
4851 | ||
3772a991 | 4852 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { |
dea3101e | 4853 | /* First copy command data to host SLIM area */ |
34b02dcd | 4854 | lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE); |
dea3101e | 4855 | } else { |
9290831f | 4856 | if (mb->mbxCommand == MBX_CONFIG_PORT) { |
dea3101e | 4857 | /* copy command data into host mbox for cmpl */ |
34b02dcd | 4858 | lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE); |
dea3101e | 4859 | } |
4860 | ||
4861 | /* First copy mbox command data to HBA SLIM, skip past first | |
4862 | word */ | |
4863 | to_slim = phba->MBslimaddr + sizeof (uint32_t); | |
4864 | lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0], | |
4865 | MAILBOX_CMD_SIZE - sizeof (uint32_t)); | |
4866 | ||
4867 | /* Next copy over first word, with mbxOwner set */ | |
34b02dcd | 4868 | ldata = *((uint32_t *)mb); |
dea3101e | 4869 | to_slim = phba->MBslimaddr; |
4870 | writel(ldata, to_slim); | |
4871 | readl(to_slim); /* flush */ | |
4872 | ||
4873 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
4874 | /* switch over to host mailbox */ | |
3772a991 | 4875 | psli->sli_flag |= LPFC_SLI_ACTIVE; |
dea3101e | 4876 | } |
4877 | } | |
4878 | ||
4879 | wmb(); | |
dea3101e | 4880 | |
4881 | switch (flag) { | |
4882 | case MBX_NOWAIT: | |
09372820 | 4883 | /* Set up reference to mailbox command */ |
dea3101e | 4884 | psli->mbox_active = pmbox; |
09372820 JS |
4885 | /* Interrupt board to do it */ |
4886 | writel(CA_MBATT, phba->CAregaddr); | |
4887 | readl(phba->CAregaddr); /* flush */ | |
4888 | /* Don't wait for it to finish, just return */ | |
dea3101e | 4889 | break; |
4890 | ||
4891 | case MBX_POLL: | |
09372820 | 4892 | /* Set up null reference to mailbox command */ |
dea3101e | 4893 | psli->mbox_active = NULL; |
09372820 JS |
4894 | /* Interrupt board to do it */ |
4895 | writel(CA_MBATT, phba->CAregaddr); | |
4896 | readl(phba->CAregaddr); /* flush */ | |
4897 | ||
3772a991 | 4898 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { |
dea3101e | 4899 | /* First read mbox status word */ |
34b02dcd | 4900 | word0 = *((uint32_t *)phba->mbox); |
dea3101e | 4901 | word0 = le32_to_cpu(word0); |
4902 | } else { | |
4903 | /* First read mbox status word */ | |
4904 | word0 = readl(phba->MBslimaddr); | |
4905 | } | |
4906 | ||
4907 | /* Read the HBA Host Attention Register */ | |
4908 | ha_copy = readl(phba->HAregaddr); | |
09372820 JS |
4909 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, |
4910 | mb->mbxCommand) * | |
4911 | 1000) + jiffies; | |
4912 | i = 0; | |
dea3101e | 4913 | /* Wait for command to complete */ |
41415862 JW |
4914 | while (((word0 & OWN_CHIP) == OWN_CHIP) || |
4915 | (!(ha_copy & HA_MBATT) && | |
2e0fef85 | 4916 | (phba->link_state > LPFC_WARM_START))) { |
09372820 | 4917 | if (time_after(jiffies, timeout)) { |
dea3101e | 4918 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 4919 | spin_unlock_irqrestore(&phba->hbalock, |
dea3101e | 4920 | drvr_flag); |
58da1ffb | 4921 | goto out_not_finished; |
dea3101e | 4922 | } |
4923 | ||
4924 | /* Check if we took a mbox interrupt while we were | |
4925 | polling */ | |
4926 | if (((word0 & OWN_CHIP) != OWN_CHIP) | |
4927 | && (evtctr != psli->slistat.mbox_event)) | |
4928 | break; | |
4929 | ||
09372820 JS |
4930 | if (i++ > 10) { |
4931 | spin_unlock_irqrestore(&phba->hbalock, | |
4932 | drvr_flag); | |
4933 | msleep(1); | |
4934 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
4935 | } | |
dea3101e | 4936 | |
3772a991 | 4937 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { |
dea3101e | 4938 | /* First copy command data */ |
34b02dcd | 4939 | word0 = *((uint32_t *)phba->mbox); |
dea3101e | 4940 | word0 = le32_to_cpu(word0); |
4941 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
4942 | MAILBOX_t *slimmb; | |
34b02dcd | 4943 | uint32_t slimword0; |
dea3101e | 4944 | /* Check real SLIM for any errors */ |
4945 | slimword0 = readl(phba->MBslimaddr); | |
4946 | slimmb = (MAILBOX_t *) & slimword0; | |
4947 | if (((slimword0 & OWN_CHIP) != OWN_CHIP) | |
4948 | && slimmb->mbxStatus) { | |
4949 | psli->sli_flag &= | |
3772a991 | 4950 | ~LPFC_SLI_ACTIVE; |
dea3101e | 4951 | word0 = slimword0; |
4952 | } | |
4953 | } | |
4954 | } else { | |
4955 | /* First copy command data */ | |
4956 | word0 = readl(phba->MBslimaddr); | |
4957 | } | |
4958 | /* Read the HBA Host Attention Register */ | |
4959 | ha_copy = readl(phba->HAregaddr); | |
4960 | } | |
4961 | ||
3772a991 | 4962 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { |
dea3101e | 4963 | /* copy results back to user */ |
34b02dcd | 4964 | lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE); |
dea3101e | 4965 | } else { |
4966 | /* First copy command data */ | |
4967 | lpfc_memcpy_from_slim(mb, phba->MBslimaddr, | |
4968 | MAILBOX_CMD_SIZE); | |
4969 | if ((mb->mbxCommand == MBX_DUMP_MEMORY) && | |
4970 | pmbox->context2) { | |
92d7f7b0 | 4971 | lpfc_memcpy_from_slim((void *)pmbox->context2, |
dea3101e | 4972 | phba->MBslimaddr + DMP_RSP_OFFSET, |
4973 | mb->un.varDmp.word_cnt); | |
4974 | } | |
4975 | } | |
4976 | ||
4977 | writel(HA_MBATT, phba->HAregaddr); | |
4978 | readl(phba->HAregaddr); /* flush */ | |
4979 | ||
4980 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
4981 | status = mb->mbxStatus; | |
4982 | } | |
4983 | ||
2e0fef85 JS |
4984 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
4985 | return status; | |
58da1ffb JS |
4986 | |
4987 | out_not_finished: | |
4988 | if (processing_queue) { | |
da0436e9 | 4989 | pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED; |
58da1ffb JS |
4990 | lpfc_mbox_cmpl_put(phba, pmbox); |
4991 | } | |
4992 | return MBX_NOT_FINISHED; | |
dea3101e | 4993 | } |
4994 | ||
f1126688 JS |
4995 | /** |
4996 | * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command | |
4997 | * @phba: Pointer to HBA context object. | |
4998 | * | |
4999 | * The function blocks the posting of SLI4 asynchronous mailbox commands from | |
5000 | * the driver internal pending mailbox queue. It will then try to wait out the | |
5001 | * possible outstanding mailbox command before return. | |
5002 | * | |
5003 | * Returns: | |
5004 | * 0 - the outstanding mailbox command completed; otherwise, the wait for | |
5005 | * the outstanding mailbox command timed out. | |
5006 | **/ | |
5007 | static int | |
5008 | lpfc_sli4_async_mbox_block(struct lpfc_hba *phba) | |
5009 | { | |
5010 | struct lpfc_sli *psli = &phba->sli; | |
5011 | uint8_t actcmd = MBX_HEARTBEAT; | |
5012 | int rc = 0; | |
5013 | unsigned long timeout; | |
5014 | ||
5015 | /* Mark the asynchronous mailbox command posting as blocked */ | |
5016 | spin_lock_irq(&phba->hbalock); | |
5017 | psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; | |
5018 | if (phba->sli.mbox_active) | |
5019 | actcmd = phba->sli.mbox_active->u.mb.mbxCommand; | |
5020 | spin_unlock_irq(&phba->hbalock); | |
5021 | /* Determine how long we might wait for the active mailbox | |
5022 | * command to be gracefully completed by firmware. | |
5023 | */ | |
5024 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) + | |
5025 | jiffies; | |
5026 | /* Wait for the outstnading mailbox command to complete */ | |
5027 | while (phba->sli.mbox_active) { | |
5028 | /* Check active mailbox complete status every 2ms */ | |
5029 | msleep(2); | |
5030 | if (time_after(jiffies, timeout)) { | |
5031 | /* Timeout, marked the outstanding cmd not complete */ | |
5032 | rc = 1; | |
5033 | break; | |
5034 | } | |
5035 | } | |
5036 | ||
5037 | /* Can not cleanly block async mailbox command, fails it */ | |
5038 | if (rc) { | |
5039 | spin_lock_irq(&phba->hbalock); | |
5040 | psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK; | |
5041 | spin_unlock_irq(&phba->hbalock); | |
5042 | } | |
5043 | return rc; | |
5044 | } | |
5045 | ||
5046 | /** | |
5047 | * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command | |
5048 | * @phba: Pointer to HBA context object. | |
5049 | * | |
5050 | * The function unblocks and resume posting of SLI4 asynchronous mailbox | |
5051 | * commands from the driver internal pending mailbox queue. It makes sure | |
5052 | * that there is no outstanding mailbox command before resuming posting | |
5053 | * asynchronous mailbox commands. If, for any reason, there is outstanding | |
5054 | * mailbox command, it will try to wait it out before resuming asynchronous | |
5055 | * mailbox command posting. | |
5056 | **/ | |
5057 | static void | |
5058 | lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba) | |
5059 | { | |
5060 | struct lpfc_sli *psli = &phba->sli; | |
5061 | ||
5062 | spin_lock_irq(&phba->hbalock); | |
5063 | if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) { | |
5064 | /* Asynchronous mailbox posting is not blocked, do nothing */ | |
5065 | spin_unlock_irq(&phba->hbalock); | |
5066 | return; | |
5067 | } | |
5068 | ||
5069 | /* Outstanding synchronous mailbox command is guaranteed to be done, | |
5070 | * successful or timeout, after timing-out the outstanding mailbox | |
5071 | * command shall always be removed, so just unblock posting async | |
5072 | * mailbox command and resume | |
5073 | */ | |
5074 | psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK; | |
5075 | spin_unlock_irq(&phba->hbalock); | |
5076 | ||
5077 | /* wake up worker thread to post asynchronlous mailbox command */ | |
5078 | lpfc_worker_wake_up(phba); | |
5079 | } | |
5080 | ||
da0436e9 JS |
5081 | /** |
5082 | * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox | |
5083 | * @phba: Pointer to HBA context object. | |
5084 | * @mboxq: Pointer to mailbox object. | |
5085 | * | |
5086 | * The function posts a mailbox to the port. The mailbox is expected | |
5087 | * to be comletely filled in and ready for the port to operate on it. | |
5088 | * This routine executes a synchronous completion operation on the | |
5089 | * mailbox by polling for its completion. | |
5090 | * | |
5091 | * The caller must not be holding any locks when calling this routine. | |
5092 | * | |
5093 | * Returns: | |
5094 | * MBX_SUCCESS - mailbox posted successfully | |
5095 | * Any of the MBX error values. | |
5096 | **/ | |
5097 | static int | |
5098 | lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) | |
5099 | { | |
5100 | int rc = MBX_SUCCESS; | |
5101 | unsigned long iflag; | |
5102 | uint32_t db_ready; | |
5103 | uint32_t mcqe_status; | |
5104 | uint32_t mbx_cmnd; | |
5105 | unsigned long timeout; | |
5106 | struct lpfc_sli *psli = &phba->sli; | |
5107 | struct lpfc_mqe *mb = &mboxq->u.mqe; | |
5108 | struct lpfc_bmbx_create *mbox_rgn; | |
5109 | struct dma_address *dma_address; | |
5110 | struct lpfc_register bmbx_reg; | |
5111 | ||
5112 | /* | |
5113 | * Only one mailbox can be active to the bootstrap mailbox region | |
5114 | * at a time and there is no queueing provided. | |
5115 | */ | |
5116 | spin_lock_irqsave(&phba->hbalock, iflag); | |
5117 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { | |
5118 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
5119 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5120 | "(%d):2532 Mailbox command x%x (x%x) " | |
5121 | "cannot issue Data: x%x x%x\n", | |
5122 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5123 | mboxq->u.mb.mbxCommand, | |
5124 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5125 | psli->sli_flag, MBX_POLL); | |
5126 | return MBXERR_ERROR; | |
5127 | } | |
5128 | /* The server grabs the token and owns it until release */ | |
5129 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; | |
5130 | phba->sli.mbox_active = mboxq; | |
5131 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
5132 | ||
5133 | /* | |
5134 | * Initialize the bootstrap memory region to avoid stale data areas | |
5135 | * in the mailbox post. Then copy the caller's mailbox contents to | |
5136 | * the bmbx mailbox region. | |
5137 | */ | |
5138 | mbx_cmnd = bf_get(lpfc_mqe_command, mb); | |
5139 | memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create)); | |
5140 | lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt, | |
5141 | sizeof(struct lpfc_mqe)); | |
5142 | ||
5143 | /* Post the high mailbox dma address to the port and wait for ready. */ | |
5144 | dma_address = &phba->sli4_hba.bmbx.dma_address; | |
5145 | writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr); | |
5146 | ||
5147 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd) | |
5148 | * 1000) + jiffies; | |
5149 | do { | |
5150 | bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr); | |
5151 | db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg); | |
5152 | if (!db_ready) | |
5153 | msleep(2); | |
5154 | ||
5155 | if (time_after(jiffies, timeout)) { | |
5156 | rc = MBXERR_ERROR; | |
5157 | goto exit; | |
5158 | } | |
5159 | } while (!db_ready); | |
5160 | ||
5161 | /* Post the low mailbox dma address to the port. */ | |
5162 | writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr); | |
5163 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd) | |
5164 | * 1000) + jiffies; | |
5165 | do { | |
5166 | bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr); | |
5167 | db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg); | |
5168 | if (!db_ready) | |
5169 | msleep(2); | |
5170 | ||
5171 | if (time_after(jiffies, timeout)) { | |
5172 | rc = MBXERR_ERROR; | |
5173 | goto exit; | |
5174 | } | |
5175 | } while (!db_ready); | |
5176 | ||
5177 | /* | |
5178 | * Read the CQ to ensure the mailbox has completed. | |
5179 | * If so, update the mailbox status so that the upper layers | |
5180 | * can complete the request normally. | |
5181 | */ | |
5182 | lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb, | |
5183 | sizeof(struct lpfc_mqe)); | |
5184 | mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt; | |
5185 | lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe, | |
5186 | sizeof(struct lpfc_mcqe)); | |
5187 | mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe); | |
5188 | ||
5189 | /* Prefix the mailbox status with range x4000 to note SLI4 status. */ | |
5190 | if (mcqe_status != MB_CQE_STATUS_SUCCESS) { | |
5191 | bf_set(lpfc_mqe_status, mb, LPFC_MBX_ERROR_RANGE | mcqe_status); | |
5192 | rc = MBXERR_ERROR; | |
5193 | } | |
5194 | ||
5195 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
5196 | "(%d):0356 Mailbox cmd x%x (x%x) Status x%x " | |
5197 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x" | |
5198 | " x%x x%x CQ: x%x x%x x%x x%x\n", | |
5199 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5200 | mbx_cmnd, lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5201 | bf_get(lpfc_mqe_status, mb), | |
5202 | mb->un.mb_words[0], mb->un.mb_words[1], | |
5203 | mb->un.mb_words[2], mb->un.mb_words[3], | |
5204 | mb->un.mb_words[4], mb->un.mb_words[5], | |
5205 | mb->un.mb_words[6], mb->un.mb_words[7], | |
5206 | mb->un.mb_words[8], mb->un.mb_words[9], | |
5207 | mb->un.mb_words[10], mb->un.mb_words[11], | |
5208 | mb->un.mb_words[12], mboxq->mcqe.word0, | |
5209 | mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1, | |
5210 | mboxq->mcqe.trailer); | |
5211 | exit: | |
5212 | /* We are holding the token, no needed for lock when release */ | |
5213 | spin_lock_irqsave(&phba->hbalock, iflag); | |
5214 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
5215 | phba->sli.mbox_active = NULL; | |
5216 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
5217 | return rc; | |
5218 | } | |
5219 | ||
5220 | /** | |
5221 | * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware | |
5222 | * @phba: Pointer to HBA context object. | |
5223 | * @pmbox: Pointer to mailbox object. | |
5224 | * @flag: Flag indicating how the mailbox need to be processed. | |
5225 | * | |
5226 | * This function is called by discovery code and HBA management code to submit | |
5227 | * a mailbox command to firmware with SLI-4 interface spec. | |
5228 | * | |
5229 | * Return codes the caller owns the mailbox command after the return of the | |
5230 | * function. | |
5231 | **/ | |
5232 | static int | |
5233 | lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, | |
5234 | uint32_t flag) | |
5235 | { | |
5236 | struct lpfc_sli *psli = &phba->sli; | |
5237 | unsigned long iflags; | |
5238 | int rc; | |
5239 | ||
8fa38513 JS |
5240 | rc = lpfc_mbox_dev_check(phba); |
5241 | if (unlikely(rc)) { | |
5242 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5243 | "(%d):2544 Mailbox command x%x (x%x) " | |
5244 | "cannot issue Data: x%x x%x\n", | |
5245 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5246 | mboxq->u.mb.mbxCommand, | |
5247 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5248 | psli->sli_flag, flag); | |
5249 | goto out_not_finished; | |
5250 | } | |
5251 | ||
da0436e9 JS |
5252 | /* Detect polling mode and jump to a handler */ |
5253 | if (!phba->sli4_hba.intr_enable) { | |
5254 | if (flag == MBX_POLL) | |
5255 | rc = lpfc_sli4_post_sync_mbox(phba, mboxq); | |
5256 | else | |
5257 | rc = -EIO; | |
5258 | if (rc != MBX_SUCCESS) | |
5259 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5260 | "(%d):2541 Mailbox command x%x " | |
5261 | "(x%x) cannot issue Data: x%x x%x\n", | |
5262 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5263 | mboxq->u.mb.mbxCommand, | |
5264 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5265 | psli->sli_flag, flag); | |
5266 | return rc; | |
5267 | } else if (flag == MBX_POLL) { | |
f1126688 JS |
5268 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, |
5269 | "(%d):2542 Try to issue mailbox command " | |
5270 | "x%x (x%x) synchronously ahead of async" | |
5271 | "mailbox command queue: x%x x%x\n", | |
da0436e9 JS |
5272 | mboxq->vport ? mboxq->vport->vpi : 0, |
5273 | mboxq->u.mb.mbxCommand, | |
5274 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5275 | psli->sli_flag, flag); | |
f1126688 JS |
5276 | /* Try to block the asynchronous mailbox posting */ |
5277 | rc = lpfc_sli4_async_mbox_block(phba); | |
5278 | if (!rc) { | |
5279 | /* Successfully blocked, now issue sync mbox cmd */ | |
5280 | rc = lpfc_sli4_post_sync_mbox(phba, mboxq); | |
5281 | if (rc != MBX_SUCCESS) | |
5282 | lpfc_printf_log(phba, KERN_ERR, | |
5283 | LOG_MBOX | LOG_SLI, | |
5284 | "(%d):2597 Mailbox command " | |
5285 | "x%x (x%x) cannot issue " | |
5286 | "Data: x%x x%x\n", | |
5287 | mboxq->vport ? | |
5288 | mboxq->vport->vpi : 0, | |
5289 | mboxq->u.mb.mbxCommand, | |
5290 | lpfc_sli4_mbox_opcode_get(phba, | |
5291 | mboxq), | |
5292 | psli->sli_flag, flag); | |
5293 | /* Unblock the async mailbox posting afterward */ | |
5294 | lpfc_sli4_async_mbox_unblock(phba); | |
5295 | } | |
5296 | return rc; | |
da0436e9 JS |
5297 | } |
5298 | ||
5299 | /* Now, interrupt mode asynchrous mailbox command */ | |
5300 | rc = lpfc_mbox_cmd_check(phba, mboxq); | |
5301 | if (rc) { | |
5302 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5303 | "(%d):2543 Mailbox command x%x (x%x) " | |
5304 | "cannot issue Data: x%x x%x\n", | |
5305 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5306 | mboxq->u.mb.mbxCommand, | |
5307 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5308 | psli->sli_flag, flag); | |
5309 | goto out_not_finished; | |
5310 | } | |
da0436e9 JS |
5311 | |
5312 | /* Put the mailbox command to the driver internal FIFO */ | |
5313 | psli->slistat.mbox_busy++; | |
5314 | spin_lock_irqsave(&phba->hbalock, iflags); | |
5315 | lpfc_mbox_put(phba, mboxq); | |
5316 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5317 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
5318 | "(%d):0354 Mbox cmd issue - Enqueue Data: " | |
5319 | "x%x (x%x) x%x x%x x%x\n", | |
5320 | mboxq->vport ? mboxq->vport->vpi : 0xffffff, | |
5321 | bf_get(lpfc_mqe_command, &mboxq->u.mqe), | |
5322 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5323 | phba->pport->port_state, | |
5324 | psli->sli_flag, MBX_NOWAIT); | |
5325 | /* Wake up worker thread to transport mailbox command from head */ | |
5326 | lpfc_worker_wake_up(phba); | |
5327 | ||
5328 | return MBX_BUSY; | |
5329 | ||
5330 | out_not_finished: | |
5331 | return MBX_NOT_FINISHED; | |
5332 | } | |
5333 | ||
5334 | /** | |
5335 | * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device | |
5336 | * @phba: Pointer to HBA context object. | |
5337 | * | |
5338 | * This function is called by worker thread to send a mailbox command to | |
5339 | * SLI4 HBA firmware. | |
5340 | * | |
5341 | **/ | |
5342 | int | |
5343 | lpfc_sli4_post_async_mbox(struct lpfc_hba *phba) | |
5344 | { | |
5345 | struct lpfc_sli *psli = &phba->sli; | |
5346 | LPFC_MBOXQ_t *mboxq; | |
5347 | int rc = MBX_SUCCESS; | |
5348 | unsigned long iflags; | |
5349 | struct lpfc_mqe *mqe; | |
5350 | uint32_t mbx_cmnd; | |
5351 | ||
5352 | /* Check interrupt mode before post async mailbox command */ | |
5353 | if (unlikely(!phba->sli4_hba.intr_enable)) | |
5354 | return MBX_NOT_FINISHED; | |
5355 | ||
5356 | /* Check for mailbox command service token */ | |
5357 | spin_lock_irqsave(&phba->hbalock, iflags); | |
5358 | if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) { | |
5359 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5360 | return MBX_NOT_FINISHED; | |
5361 | } | |
5362 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { | |
5363 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5364 | return MBX_NOT_FINISHED; | |
5365 | } | |
5366 | if (unlikely(phba->sli.mbox_active)) { | |
5367 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5368 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5369 | "0384 There is pending active mailbox cmd\n"); | |
5370 | return MBX_NOT_FINISHED; | |
5371 | } | |
5372 | /* Take the mailbox command service token */ | |
5373 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; | |
5374 | ||
5375 | /* Get the next mailbox command from head of queue */ | |
5376 | mboxq = lpfc_mbox_get(phba); | |
5377 | ||
5378 | /* If no more mailbox command waiting for post, we're done */ | |
5379 | if (!mboxq) { | |
5380 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
5381 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5382 | return MBX_SUCCESS; | |
5383 | } | |
5384 | phba->sli.mbox_active = mboxq; | |
5385 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5386 | ||
5387 | /* Check device readiness for posting mailbox command */ | |
5388 | rc = lpfc_mbox_dev_check(phba); | |
5389 | if (unlikely(rc)) | |
5390 | /* Driver clean routine will clean up pending mailbox */ | |
5391 | goto out_not_finished; | |
5392 | ||
5393 | /* Prepare the mbox command to be posted */ | |
5394 | mqe = &mboxq->u.mqe; | |
5395 | mbx_cmnd = bf_get(lpfc_mqe_command, mqe); | |
5396 | ||
5397 | /* Start timer for the mbox_tmo and log some mailbox post messages */ | |
5398 | mod_timer(&psli->mbox_tmo, (jiffies + | |
5399 | (HZ * lpfc_mbox_tmo_val(phba, mbx_cmnd)))); | |
5400 | ||
5401 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
5402 | "(%d):0355 Mailbox cmd x%x (x%x) issue Data: " | |
5403 | "x%x x%x\n", | |
5404 | mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd, | |
5405 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5406 | phba->pport->port_state, psli->sli_flag); | |
5407 | ||
5408 | if (mbx_cmnd != MBX_HEARTBEAT) { | |
5409 | if (mboxq->vport) { | |
5410 | lpfc_debugfs_disc_trc(mboxq->vport, | |
5411 | LPFC_DISC_TRC_MBOX_VPORT, | |
5412 | "MBOX Send vport: cmd:x%x mb:x%x x%x", | |
5413 | mbx_cmnd, mqe->un.mb_words[0], | |
5414 | mqe->un.mb_words[1]); | |
5415 | } else { | |
5416 | lpfc_debugfs_disc_trc(phba->pport, | |
5417 | LPFC_DISC_TRC_MBOX, | |
5418 | "MBOX Send: cmd:x%x mb:x%x x%x", | |
5419 | mbx_cmnd, mqe->un.mb_words[0], | |
5420 | mqe->un.mb_words[1]); | |
5421 | } | |
5422 | } | |
5423 | psli->slistat.mbox_cmd++; | |
5424 | ||
5425 | /* Post the mailbox command to the port */ | |
5426 | rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe); | |
5427 | if (rc != MBX_SUCCESS) { | |
5428 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5429 | "(%d):2533 Mailbox command x%x (x%x) " | |
5430 | "cannot issue Data: x%x x%x\n", | |
5431 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5432 | mboxq->u.mb.mbxCommand, | |
5433 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5434 | psli->sli_flag, MBX_NOWAIT); | |
5435 | goto out_not_finished; | |
5436 | } | |
5437 | ||
5438 | return rc; | |
5439 | ||
5440 | out_not_finished: | |
5441 | spin_lock_irqsave(&phba->hbalock, iflags); | |
5442 | mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; | |
5443 | __lpfc_mbox_cmpl_put(phba, mboxq); | |
5444 | /* Release the token */ | |
5445 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
5446 | phba->sli.mbox_active = NULL; | |
5447 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5448 | ||
5449 | return MBX_NOT_FINISHED; | |
5450 | } | |
5451 | ||
5452 | /** | |
5453 | * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command | |
5454 | * @phba: Pointer to HBA context object. | |
5455 | * @pmbox: Pointer to mailbox object. | |
5456 | * @flag: Flag indicating how the mailbox need to be processed. | |
5457 | * | |
5458 | * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from | |
5459 | * the API jump table function pointer from the lpfc_hba struct. | |
5460 | * | |
5461 | * Return codes the caller owns the mailbox command after the return of the | |
5462 | * function. | |
5463 | **/ | |
5464 | int | |
5465 | lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag) | |
5466 | { | |
5467 | return phba->lpfc_sli_issue_mbox(phba, pmbox, flag); | |
5468 | } | |
5469 | ||
5470 | /** | |
5471 | * lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table | |
5472 | * @phba: The hba struct for which this call is being executed. | |
5473 | * @dev_grp: The HBA PCI-Device group number. | |
5474 | * | |
5475 | * This routine sets up the mbox interface API function jump table in @phba | |
5476 | * struct. | |
5477 | * Returns: 0 - success, -ENODEV - failure. | |
5478 | **/ | |
5479 | int | |
5480 | lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) | |
5481 | { | |
5482 | ||
5483 | switch (dev_grp) { | |
5484 | case LPFC_PCI_DEV_LP: | |
5485 | phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3; | |
5486 | phba->lpfc_sli_handle_slow_ring_event = | |
5487 | lpfc_sli_handle_slow_ring_event_s3; | |
5488 | phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3; | |
5489 | phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3; | |
5490 | phba->lpfc_sli_brdready = lpfc_sli_brdready_s3; | |
5491 | break; | |
5492 | case LPFC_PCI_DEV_OC: | |
5493 | phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4; | |
5494 | phba->lpfc_sli_handle_slow_ring_event = | |
5495 | lpfc_sli_handle_slow_ring_event_s4; | |
5496 | phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4; | |
5497 | phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4; | |
5498 | phba->lpfc_sli_brdready = lpfc_sli_brdready_s4; | |
5499 | break; | |
5500 | default: | |
5501 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5502 | "1420 Invalid HBA PCI-device group: 0x%x\n", | |
5503 | dev_grp); | |
5504 | return -ENODEV; | |
5505 | break; | |
5506 | } | |
5507 | return 0; | |
5508 | } | |
5509 | ||
e59058c4 | 5510 | /** |
3621a710 | 5511 | * __lpfc_sli_ringtx_put - Add an iocb to the txq |
e59058c4 JS |
5512 | * @phba: Pointer to HBA context object. |
5513 | * @pring: Pointer to driver SLI ring object. | |
5514 | * @piocb: Pointer to address of newly added command iocb. | |
5515 | * | |
5516 | * This function is called with hbalock held to add a command | |
5517 | * iocb to the txq when SLI layer cannot submit the command iocb | |
5518 | * to the ring. | |
5519 | **/ | |
858c9f6c | 5520 | static void |
92d7f7b0 | 5521 | __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
2e0fef85 | 5522 | struct lpfc_iocbq *piocb) |
dea3101e | 5523 | { |
5524 | /* Insert the caller's iocb in the txq tail for later processing. */ | |
5525 | list_add_tail(&piocb->list, &pring->txq); | |
5526 | pring->txq_cnt++; | |
dea3101e | 5527 | } |
5528 | ||
e59058c4 | 5529 | /** |
3621a710 | 5530 | * lpfc_sli_next_iocb - Get the next iocb in the txq |
e59058c4 JS |
5531 | * @phba: Pointer to HBA context object. |
5532 | * @pring: Pointer to driver SLI ring object. | |
5533 | * @piocb: Pointer to address of newly added command iocb. | |
5534 | * | |
5535 | * This function is called with hbalock held before a new | |
5536 | * iocb is submitted to the firmware. This function checks | |
5537 | * txq to flush the iocbs in txq to Firmware before | |
5538 | * submitting new iocbs to the Firmware. | |
5539 | * If there are iocbs in the txq which need to be submitted | |
5540 | * to firmware, lpfc_sli_next_iocb returns the first element | |
5541 | * of the txq after dequeuing it from txq. | |
5542 | * If there is no iocb in the txq then the function will return | |
5543 | * *piocb and *piocb is set to NULL. Caller needs to check | |
5544 | * *piocb to find if there are more commands in the txq. | |
5545 | **/ | |
dea3101e | 5546 | static struct lpfc_iocbq * |
5547 | lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2e0fef85 | 5548 | struct lpfc_iocbq **piocb) |
dea3101e | 5549 | { |
5550 | struct lpfc_iocbq * nextiocb; | |
5551 | ||
5552 | nextiocb = lpfc_sli_ringtx_get(phba, pring); | |
5553 | if (!nextiocb) { | |
5554 | nextiocb = *piocb; | |
5555 | *piocb = NULL; | |
5556 | } | |
5557 | ||
5558 | return nextiocb; | |
5559 | } | |
5560 | ||
e59058c4 | 5561 | /** |
3772a991 | 5562 | * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb |
e59058c4 | 5563 | * @phba: Pointer to HBA context object. |
3772a991 | 5564 | * @ring_number: SLI ring number to issue iocb on. |
e59058c4 JS |
5565 | * @piocb: Pointer to command iocb. |
5566 | * @flag: Flag indicating if this command can be put into txq. | |
5567 | * | |
3772a991 JS |
5568 | * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue |
5569 | * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is | |
5570 | * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT | |
5571 | * flag is turned on, the function returns IOCB_ERROR. When the link is down, | |
5572 | * this function allows only iocbs for posting buffers. This function finds | |
5573 | * next available slot in the command ring and posts the command to the | |
5574 | * available slot and writes the port attention register to request HBA start | |
5575 | * processing new iocb. If there is no slot available in the ring and | |
5576 | * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise | |
5577 | * the function returns IOCB_BUSY. | |
e59058c4 | 5578 | * |
3772a991 JS |
5579 | * This function is called with hbalock held. The function will return success |
5580 | * after it successfully submit the iocb to firmware or after adding to the | |
5581 | * txq. | |
e59058c4 | 5582 | **/ |
98c9ea5c | 5583 | static int |
3772a991 | 5584 | __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number, |
dea3101e | 5585 | struct lpfc_iocbq *piocb, uint32_t flag) |
5586 | { | |
5587 | struct lpfc_iocbq *nextiocb; | |
5588 | IOCB_t *iocb; | |
3772a991 | 5589 | struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number]; |
dea3101e | 5590 | |
92d7f7b0 JS |
5591 | if (piocb->iocb_cmpl && (!piocb->vport) && |
5592 | (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && | |
5593 | (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { | |
5594 | lpfc_printf_log(phba, KERN_ERR, | |
5595 | LOG_SLI | LOG_VPORT, | |
e8b62011 | 5596 | "1807 IOCB x%x failed. No vport\n", |
92d7f7b0 JS |
5597 | piocb->iocb.ulpCommand); |
5598 | dump_stack(); | |
5599 | return IOCB_ERROR; | |
5600 | } | |
5601 | ||
5602 | ||
8d63f375 LV |
5603 | /* If the PCI channel is in offline state, do not post iocbs. */ |
5604 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
5605 | return IOCB_ERROR; | |
5606 | ||
a257bf90 JS |
5607 | /* If HBA has a deferred error attention, fail the iocb. */ |
5608 | if (unlikely(phba->hba_flag & DEFER_ERATT)) | |
5609 | return IOCB_ERROR; | |
5610 | ||
dea3101e | 5611 | /* |
5612 | * We should never get an IOCB if we are in a < LINK_DOWN state | |
5613 | */ | |
2e0fef85 | 5614 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) |
dea3101e | 5615 | return IOCB_ERROR; |
5616 | ||
5617 | /* | |
5618 | * Check to see if we are blocking IOCB processing because of a | |
0b727fea | 5619 | * outstanding event. |
dea3101e | 5620 | */ |
0b727fea | 5621 | if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT)) |
dea3101e | 5622 | goto iocb_busy; |
5623 | ||
2e0fef85 | 5624 | if (unlikely(phba->link_state == LPFC_LINK_DOWN)) { |
dea3101e | 5625 | /* |
2680eeaa | 5626 | * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF |
dea3101e | 5627 | * can be issued if the link is not up. |
5628 | */ | |
5629 | switch (piocb->iocb.ulpCommand) { | |
84774a4d JS |
5630 | case CMD_GEN_REQUEST64_CR: |
5631 | case CMD_GEN_REQUEST64_CX: | |
5632 | if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) || | |
5633 | (piocb->iocb.un.genreq64.w5.hcsw.Rctl != | |
6a9c52cf | 5634 | FC_RCTL_DD_UNSOL_CMD) || |
84774a4d JS |
5635 | (piocb->iocb.un.genreq64.w5.hcsw.Type != |
5636 | MENLO_TRANSPORT_TYPE)) | |
5637 | ||
5638 | goto iocb_busy; | |
5639 | break; | |
dea3101e | 5640 | case CMD_QUE_RING_BUF_CN: |
5641 | case CMD_QUE_RING_BUF64_CN: | |
dea3101e | 5642 | /* |
5643 | * For IOCBs, like QUE_RING_BUF, that have no rsp ring | |
5644 | * completion, iocb_cmpl MUST be 0. | |
5645 | */ | |
5646 | if (piocb->iocb_cmpl) | |
5647 | piocb->iocb_cmpl = NULL; | |
5648 | /*FALLTHROUGH*/ | |
5649 | case CMD_CREATE_XRI_CR: | |
2680eeaa JS |
5650 | case CMD_CLOSE_XRI_CN: |
5651 | case CMD_CLOSE_XRI_CX: | |
dea3101e | 5652 | break; |
5653 | default: | |
5654 | goto iocb_busy; | |
5655 | } | |
5656 | ||
5657 | /* | |
5658 | * For FCP commands, we must be in a state where we can process link | |
5659 | * attention events. | |
5660 | */ | |
5661 | } else if (unlikely(pring->ringno == phba->sli.fcp_ring && | |
92d7f7b0 | 5662 | !(phba->sli.sli_flag & LPFC_PROCESS_LA))) { |
dea3101e | 5663 | goto iocb_busy; |
92d7f7b0 | 5664 | } |
dea3101e | 5665 | |
dea3101e | 5666 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && |
5667 | (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb))) | |
5668 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
5669 | ||
5670 | if (iocb) | |
5671 | lpfc_sli_update_ring(phba, pring); | |
5672 | else | |
5673 | lpfc_sli_update_full_ring(phba, pring); | |
5674 | ||
5675 | if (!piocb) | |
5676 | return IOCB_SUCCESS; | |
5677 | ||
5678 | goto out_busy; | |
5679 | ||
5680 | iocb_busy: | |
5681 | pring->stats.iocb_cmd_delay++; | |
5682 | ||
5683 | out_busy: | |
5684 | ||
5685 | if (!(flag & SLI_IOCB_RET_IOCB)) { | |
92d7f7b0 | 5686 | __lpfc_sli_ringtx_put(phba, pring, piocb); |
dea3101e | 5687 | return IOCB_SUCCESS; |
5688 | } | |
5689 | ||
5690 | return IOCB_BUSY; | |
5691 | } | |
5692 | ||
3772a991 | 5693 | /** |
4f774513 JS |
5694 | * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl. |
5695 | * @phba: Pointer to HBA context object. | |
5696 | * @piocb: Pointer to command iocb. | |
5697 | * @sglq: Pointer to the scatter gather queue object. | |
5698 | * | |
5699 | * This routine converts the bpl or bde that is in the IOCB | |
5700 | * to a sgl list for the sli4 hardware. The physical address | |
5701 | * of the bpl/bde is converted back to a virtual address. | |
5702 | * If the IOCB contains a BPL then the list of BDE's is | |
5703 | * converted to sli4_sge's. If the IOCB contains a single | |
5704 | * BDE then it is converted to a single sli_sge. | |
5705 | * The IOCB is still in cpu endianess so the contents of | |
5706 | * the bpl can be used without byte swapping. | |
5707 | * | |
5708 | * Returns valid XRI = Success, NO_XRI = Failure. | |
5709 | **/ | |
5710 | static uint16_t | |
5711 | lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq, | |
5712 | struct lpfc_sglq *sglq) | |
3772a991 | 5713 | { |
4f774513 JS |
5714 | uint16_t xritag = NO_XRI; |
5715 | struct ulp_bde64 *bpl = NULL; | |
5716 | struct ulp_bde64 bde; | |
5717 | struct sli4_sge *sgl = NULL; | |
5718 | IOCB_t *icmd; | |
5719 | int numBdes = 0; | |
5720 | int i = 0; | |
3772a991 | 5721 | |
4f774513 JS |
5722 | if (!piocbq || !sglq) |
5723 | return xritag; | |
5724 | ||
5725 | sgl = (struct sli4_sge *)sglq->sgl; | |
5726 | icmd = &piocbq->iocb; | |
5727 | if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) { | |
5728 | numBdes = icmd->un.genreq64.bdl.bdeSize / | |
5729 | sizeof(struct ulp_bde64); | |
5730 | /* The addrHigh and addrLow fields within the IOCB | |
5731 | * have not been byteswapped yet so there is no | |
5732 | * need to swap them back. | |
5733 | */ | |
5734 | bpl = (struct ulp_bde64 *) | |
5735 | ((struct lpfc_dmabuf *)piocbq->context3)->virt; | |
5736 | ||
5737 | if (!bpl) | |
5738 | return xritag; | |
5739 | ||
5740 | for (i = 0; i < numBdes; i++) { | |
5741 | /* Should already be byte swapped. */ | |
28baac74 JS |
5742 | sgl->addr_hi = bpl->addrHigh; |
5743 | sgl->addr_lo = bpl->addrLow; | |
5744 | ||
4f774513 JS |
5745 | if ((i+1) == numBdes) |
5746 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
5747 | else | |
5748 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
5749 | sgl->word2 = cpu_to_le32(sgl->word2); | |
28baac74 JS |
5750 | /* swap the size field back to the cpu so we |
5751 | * can assign it to the sgl. | |
5752 | */ | |
5753 | bde.tus.w = le32_to_cpu(bpl->tus.w); | |
5754 | sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize); | |
4f774513 JS |
5755 | bpl++; |
5756 | sgl++; | |
5757 | } | |
5758 | } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) { | |
5759 | /* The addrHigh and addrLow fields of the BDE have not | |
5760 | * been byteswapped yet so they need to be swapped | |
5761 | * before putting them in the sgl. | |
5762 | */ | |
5763 | sgl->addr_hi = | |
5764 | cpu_to_le32(icmd->un.genreq64.bdl.addrHigh); | |
5765 | sgl->addr_lo = | |
5766 | cpu_to_le32(icmd->un.genreq64.bdl.addrLow); | |
4f774513 JS |
5767 | bf_set(lpfc_sli4_sge_last, sgl, 1); |
5768 | sgl->word2 = cpu_to_le32(sgl->word2); | |
28baac74 JS |
5769 | sgl->sge_len = |
5770 | cpu_to_le32(icmd->un.genreq64.bdl.bdeSize); | |
4f774513 JS |
5771 | } |
5772 | return sglq->sli4_xritag; | |
3772a991 | 5773 | } |
92d7f7b0 | 5774 | |
e59058c4 | 5775 | /** |
4f774513 | 5776 | * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution |
e59058c4 | 5777 | * @phba: Pointer to HBA context object. |
e59058c4 | 5778 | * |
4f774513 | 5779 | * This routine performs a round robin SCSI command to SLI4 FCP WQ index |
8fa38513 JS |
5780 | * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock |
5781 | * held. | |
4f774513 JS |
5782 | * |
5783 | * Return: index into SLI4 fast-path FCP queue index. | |
e59058c4 | 5784 | **/ |
4f774513 | 5785 | static uint32_t |
8fa38513 | 5786 | lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba) |
92d7f7b0 | 5787 | { |
8fa38513 JS |
5788 | ++phba->fcp_qidx; |
5789 | if (phba->fcp_qidx >= phba->cfg_fcp_wq_count) | |
5790 | phba->fcp_qidx = 0; | |
92d7f7b0 | 5791 | |
8fa38513 | 5792 | return phba->fcp_qidx; |
92d7f7b0 JS |
5793 | } |
5794 | ||
e59058c4 | 5795 | /** |
4f774513 | 5796 | * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry. |
e59058c4 | 5797 | * @phba: Pointer to HBA context object. |
4f774513 JS |
5798 | * @piocb: Pointer to command iocb. |
5799 | * @wqe: Pointer to the work queue entry. | |
e59058c4 | 5800 | * |
4f774513 JS |
5801 | * This routine converts the iocb command to its Work Queue Entry |
5802 | * equivalent. The wqe pointer should not have any fields set when | |
5803 | * this routine is called because it will memcpy over them. | |
5804 | * This routine does not set the CQ_ID or the WQEC bits in the | |
5805 | * wqe. | |
e59058c4 | 5806 | * |
4f774513 | 5807 | * Returns: 0 = Success, IOCB_ERROR = Failure. |
e59058c4 | 5808 | **/ |
cf5bf97e | 5809 | static int |
4f774513 JS |
5810 | lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq, |
5811 | union lpfc_wqe *wqe) | |
cf5bf97e | 5812 | { |
5ffc266e | 5813 | uint32_t xmit_len = 0, total_len = 0; |
4f774513 JS |
5814 | uint8_t ct = 0; |
5815 | uint32_t fip; | |
5816 | uint32_t abort_tag; | |
5817 | uint8_t command_type = ELS_COMMAND_NON_FIP; | |
5818 | uint8_t cmnd; | |
5819 | uint16_t xritag; | |
5820 | struct ulp_bde64 *bpl = NULL; | |
c868595d | 5821 | uint32_t els_id = ELS_ID_DEFAULT; |
5ffc266e JS |
5822 | int numBdes, i; |
5823 | struct ulp_bde64 bde; | |
4f774513 | 5824 | |
45ed1190 | 5825 | fip = phba->hba_flag & HBA_FIP_SUPPORT; |
4f774513 | 5826 | /* The fcp commands will set command type */ |
0c287589 | 5827 | if (iocbq->iocb_flag & LPFC_IO_FCP) |
4f774513 | 5828 | command_type = FCP_COMMAND; |
c868595d | 5829 | else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)) |
0c287589 JS |
5830 | command_type = ELS_COMMAND_FIP; |
5831 | else | |
5832 | command_type = ELS_COMMAND_NON_FIP; | |
5833 | ||
4f774513 JS |
5834 | /* Some of the fields are in the right position already */ |
5835 | memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe)); | |
5836 | abort_tag = (uint32_t) iocbq->iotag; | |
5837 | xritag = iocbq->sli4_xritag; | |
5838 | wqe->words[7] = 0; /* The ct field has moved so reset */ | |
5839 | /* words0-2 bpl convert bde */ | |
5840 | if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) { | |
5ffc266e JS |
5841 | numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize / |
5842 | sizeof(struct ulp_bde64); | |
4f774513 JS |
5843 | bpl = (struct ulp_bde64 *) |
5844 | ((struct lpfc_dmabuf *)iocbq->context3)->virt; | |
5845 | if (!bpl) | |
5846 | return IOCB_ERROR; | |
cf5bf97e | 5847 | |
4f774513 JS |
5848 | /* Should already be byte swapped. */ |
5849 | wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh); | |
5850 | wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow); | |
5851 | /* swap the size field back to the cpu so we | |
5852 | * can assign it to the sgl. | |
5853 | */ | |
5854 | wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w); | |
5ffc266e JS |
5855 | xmit_len = wqe->generic.bde.tus.f.bdeSize; |
5856 | total_len = 0; | |
5857 | for (i = 0; i < numBdes; i++) { | |
5858 | bde.tus.w = le32_to_cpu(bpl[i].tus.w); | |
5859 | total_len += bde.tus.f.bdeSize; | |
5860 | } | |
4f774513 | 5861 | } else |
5ffc266e | 5862 | xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize; |
cf5bf97e | 5863 | |
4f774513 JS |
5864 | iocbq->iocb.ulpIoTag = iocbq->iotag; |
5865 | cmnd = iocbq->iocb.ulpCommand; | |
a4bc3379 | 5866 | |
4f774513 JS |
5867 | switch (iocbq->iocb.ulpCommand) { |
5868 | case CMD_ELS_REQUEST64_CR: | |
5869 | if (!iocbq->iocb.ulpLe) { | |
5870 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
5871 | "2007 Only Limited Edition cmd Format" | |
5872 | " supported 0x%x\n", | |
5873 | iocbq->iocb.ulpCommand); | |
5874 | return IOCB_ERROR; | |
5875 | } | |
5ffc266e | 5876 | wqe->els_req.payload_len = xmit_len; |
4f774513 JS |
5877 | /* Els_reguest64 has a TMO */ |
5878 | bf_set(wqe_tmo, &wqe->els_req.wqe_com, | |
5879 | iocbq->iocb.ulpTimeout); | |
5880 | /* Need a VF for word 4 set the vf bit*/ | |
5881 | bf_set(els_req64_vf, &wqe->els_req, 0); | |
5882 | /* And a VFID for word 12 */ | |
5883 | bf_set(els_req64_vfid, &wqe->els_req, 0); | |
5884 | /* | |
5885 | * Set ct field to 3, indicates that the context_tag field | |
5886 | * contains the FCFI and remote N_Port_ID is | |
5887 | * in word 5. | |
5888 | */ | |
5889 | ||
5890 | ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l); | |
5891 | bf_set(lpfc_wqe_gen_context, &wqe->generic, | |
5892 | iocbq->iocb.ulpContext); | |
5893 | ||
4f774513 JS |
5894 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, ct); |
5895 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0); | |
5896 | /* CCP CCPE PV PRI in word10 were set in the memcpy */ | |
c868595d JS |
5897 | |
5898 | if (command_type == ELS_COMMAND_FIP) { | |
5899 | els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK) | |
5900 | >> LPFC_FIP_ELS_ID_SHIFT); | |
5901 | } | |
5902 | bf_set(lpfc_wqe_gen_els_id, &wqe->generic, els_id); | |
5903 | ||
4f774513 | 5904 | break; |
5ffc266e JS |
5905 | case CMD_XMIT_SEQUENCE64_CX: |
5906 | bf_set(lpfc_wqe_gen_context, &wqe->generic, | |
5907 | iocbq->iocb.un.ulpWord[3]); | |
5908 | wqe->generic.word3 = 0; | |
5909 | bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext); | |
5ffc266e JS |
5910 | /* The entire sequence is transmitted for this IOCB */ |
5911 | xmit_len = total_len; | |
5912 | cmnd = CMD_XMIT_SEQUENCE64_CR; | |
4f774513 JS |
5913 | case CMD_XMIT_SEQUENCE64_CR: |
5914 | /* word3 iocb=io_tag32 wqe=payload_offset */ | |
5915 | /* payload offset used for multilpe outstanding | |
5916 | * sequences on the same exchange | |
5917 | */ | |
5918 | wqe->words[3] = 0; | |
5919 | /* word4 relative_offset memcpy */ | |
5920 | /* word5 r_ctl/df_ctl memcpy */ | |
5921 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0); | |
5ffc266e JS |
5922 | wqe->xmit_sequence.xmit_len = xmit_len; |
5923 | command_type = OTHER_COMMAND; | |
4f774513 JS |
5924 | break; |
5925 | case CMD_XMIT_BCAST64_CN: | |
5926 | /* word3 iocb=iotag32 wqe=payload_len */ | |
5927 | wqe->words[3] = 0; /* no definition for this in wqe */ | |
5928 | /* word4 iocb=rsvd wqe=rsvd */ | |
5929 | /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */ | |
5930 | /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */ | |
5931 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, | |
5932 | ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l)); | |
5933 | break; | |
5934 | case CMD_FCP_IWRITE64_CR: | |
5935 | command_type = FCP_COMMAND_DATA_OUT; | |
5936 | /* The struct for wqe fcp_iwrite has 3 fields that are somewhat | |
5937 | * confusing. | |
5938 | * word3 is payload_len: byte offset to the sgl entry for the | |
5939 | * fcp_command. | |
5940 | * word4 is total xfer len, same as the IOCB->ulpParameter. | |
5941 | * word5 is initial xfer len 0 = wait for xfer-ready | |
5942 | */ | |
5943 | ||
5944 | /* Always wait for xfer-ready before sending data */ | |
5945 | wqe->fcp_iwrite.initial_xfer_len = 0; | |
5946 | /* word 4 (xfer length) should have been set on the memcpy */ | |
5947 | ||
5948 | /* allow write to fall through to read */ | |
5949 | case CMD_FCP_IREAD64_CR: | |
5950 | /* FCP_CMD is always the 1st sgl entry */ | |
5951 | wqe->fcp_iread.payload_len = | |
5ffc266e | 5952 | xmit_len + sizeof(struct fcp_rsp); |
4f774513 JS |
5953 | |
5954 | /* word 4 (xfer length) should have been set on the memcpy */ | |
5955 | ||
5956 | bf_set(lpfc_wqe_gen_erp, &wqe->generic, | |
5957 | iocbq->iocb.ulpFCP2Rcvy); | |
5958 | bf_set(lpfc_wqe_gen_lnk, &wqe->generic, iocbq->iocb.ulpXS); | |
5959 | /* The XC bit and the XS bit are similar. The driver never | |
5960 | * tracked whether or not the exchange was previouslly open. | |
5961 | * XC = Exchange create, 0 is create. 1 is already open. | |
5962 | * XS = link cmd: 1 do not close the exchange after command. | |
5963 | * XS = 0 close exchange when command completes. | |
5964 | * The only time we would not set the XC bit is when the XS bit | |
5965 | * is set and we are sending our 2nd or greater command on | |
5966 | * this exchange. | |
5967 | */ | |
f1126688 JS |
5968 | /* Always open the exchange */ |
5969 | bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0); | |
4f774513 | 5970 | |
f1126688 JS |
5971 | wqe->words[10] &= 0xffff0000; /* zero out ebde count */ |
5972 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU); | |
5973 | break; | |
4f774513 JS |
5974 | case CMD_FCP_ICMND64_CR: |
5975 | /* Always open the exchange */ | |
5976 | bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0); | |
5977 | ||
f1126688 | 5978 | wqe->words[4] = 0; |
4f774513 | 5979 | wqe->words[10] &= 0xffff0000; /* zero out ebde count */ |
f1126688 | 5980 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0); |
4f774513 JS |
5981 | break; |
5982 | case CMD_GEN_REQUEST64_CR: | |
5983 | /* word3 command length is described as byte offset to the | |
5984 | * rsp_data. Would always be 16, sizeof(struct sli4_sge) | |
5985 | * sgl[0] = cmnd | |
5986 | * sgl[1] = rsp. | |
5987 | * | |
5988 | */ | |
5ffc266e | 5989 | wqe->gen_req.command_len = xmit_len; |
4f774513 JS |
5990 | /* Word4 parameter copied in the memcpy */ |
5991 | /* Word5 [rctl, type, df_ctl, la] copied in memcpy */ | |
5992 | /* word6 context tag copied in memcpy */ | |
5993 | if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) { | |
5994 | ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l); | |
5995 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
5996 | "2015 Invalid CT %x command 0x%x\n", | |
5997 | ct, iocbq->iocb.ulpCommand); | |
5998 | return IOCB_ERROR; | |
5999 | } | |
6000 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, 0); | |
6001 | bf_set(wqe_tmo, &wqe->gen_req.wqe_com, | |
6002 | iocbq->iocb.ulpTimeout); | |
6003 | ||
6004 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU); | |
6005 | command_type = OTHER_COMMAND; | |
6006 | break; | |
6007 | case CMD_XMIT_ELS_RSP64_CX: | |
6008 | /* words0-2 BDE memcpy */ | |
6009 | /* word3 iocb=iotag32 wqe=rsvd */ | |
6010 | wqe->words[3] = 0; | |
6011 | /* word4 iocb=did wge=rsvd. */ | |
6012 | wqe->words[4] = 0; | |
6013 | /* word5 iocb=rsvd wge=did */ | |
6014 | bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest, | |
6015 | iocbq->iocb.un.elsreq64.remoteID); | |
6016 | ||
6017 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, | |
6018 | ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l)); | |
6019 | ||
6020 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU); | |
6021 | bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext); | |
6022 | if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l) | |
6023 | bf_set(lpfc_wqe_gen_context, &wqe->generic, | |
6024 | iocbq->vport->vpi + phba->vpi_base); | |
6025 | command_type = OTHER_COMMAND; | |
6026 | break; | |
6027 | case CMD_CLOSE_XRI_CN: | |
6028 | case CMD_ABORT_XRI_CN: | |
6029 | case CMD_ABORT_XRI_CX: | |
6030 | /* words 0-2 memcpy should be 0 rserved */ | |
6031 | /* port will send abts */ | |
6032 | if (iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) | |
6033 | /* | |
6034 | * The link is down so the fw does not need to send abts | |
6035 | * on the wire. | |
6036 | */ | |
6037 | bf_set(abort_cmd_ia, &wqe->abort_cmd, 1); | |
6038 | else | |
6039 | bf_set(abort_cmd_ia, &wqe->abort_cmd, 0); | |
6040 | bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG); | |
4f774513 JS |
6041 | wqe->words[5] = 0; |
6042 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, | |
6043 | ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l)); | |
6044 | abort_tag = iocbq->iocb.un.acxri.abortIoTag; | |
4f774513 JS |
6045 | /* |
6046 | * The abort handler will send us CMD_ABORT_XRI_CN or | |
6047 | * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX | |
6048 | */ | |
6049 | bf_set(lpfc_wqe_gen_command, &wqe->generic, CMD_ABORT_XRI_CX); | |
6050 | cmnd = CMD_ABORT_XRI_CX; | |
6051 | command_type = OTHER_COMMAND; | |
6052 | xritag = 0; | |
6053 | break; | |
6669f9bb JS |
6054 | case CMD_XMIT_BLS_RSP64_CX: |
6055 | /* As BLS ABTS-ACC WQE is very different from other WQEs, | |
6056 | * we re-construct this WQE here based on information in | |
6057 | * iocbq from scratch. | |
6058 | */ | |
6059 | memset(wqe, 0, sizeof(union lpfc_wqe)); | |
5ffc266e | 6060 | /* OX_ID is invariable to who sent ABTS to CT exchange */ |
6669f9bb | 6061 | bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp, |
5ffc266e JS |
6062 | bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_acc)); |
6063 | if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_acc) == | |
6064 | LPFC_ABTS_UNSOL_INT) { | |
6065 | /* ABTS sent by initiator to CT exchange, the | |
6066 | * RX_ID field will be filled with the newly | |
6067 | * allocated responder XRI. | |
6068 | */ | |
6069 | bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp, | |
6070 | iocbq->sli4_xritag); | |
6071 | } else { | |
6072 | /* ABTS sent by responder to CT exchange, the | |
6073 | * RX_ID field will be filled with the responder | |
6074 | * RX_ID from ABTS. | |
6075 | */ | |
6076 | bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp, | |
6077 | bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_acc)); | |
6078 | } | |
6669f9bb JS |
6079 | bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff); |
6080 | bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1); | |
6081 | bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com, | |
6082 | iocbq->iocb.ulpContext); | |
6083 | /* Overwrite the pre-set comnd type with OTHER_COMMAND */ | |
6084 | command_type = OTHER_COMMAND; | |
6085 | break; | |
4f774513 JS |
6086 | case CMD_XRI_ABORTED_CX: |
6087 | case CMD_CREATE_XRI_CR: /* Do we expect to use this? */ | |
6088 | /* words0-2 are all 0's no bde */ | |
6089 | /* word3 and word4 are rsvrd */ | |
6090 | wqe->words[3] = 0; | |
6091 | wqe->words[4] = 0; | |
6092 | /* word5 iocb=rsvd wge=did */ | |
6093 | /* There is no remote port id in the IOCB? */ | |
6094 | /* Let this fall through and fail */ | |
6095 | case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */ | |
6096 | case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */ | |
6097 | case CMD_FCP_TRSP64_CX: /* Target mode rcv */ | |
6098 | case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */ | |
6099 | default: | |
6100 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
6101 | "2014 Invalid command 0x%x\n", | |
6102 | iocbq->iocb.ulpCommand); | |
6103 | return IOCB_ERROR; | |
6104 | break; | |
6105 | ||
6106 | } | |
6107 | bf_set(lpfc_wqe_gen_xri, &wqe->generic, xritag); | |
6108 | bf_set(lpfc_wqe_gen_request_tag, &wqe->generic, iocbq->iotag); | |
6109 | wqe->generic.abort_tag = abort_tag; | |
6110 | bf_set(lpfc_wqe_gen_cmd_type, &wqe->generic, command_type); | |
6111 | bf_set(lpfc_wqe_gen_command, &wqe->generic, cmnd); | |
6112 | bf_set(lpfc_wqe_gen_class, &wqe->generic, iocbq->iocb.ulpClass); | |
6113 | bf_set(lpfc_wqe_gen_cq_id, &wqe->generic, LPFC_WQE_CQ_ID_DEFAULT); | |
6114 | ||
6115 | return 0; | |
6116 | } | |
6117 | ||
6118 | /** | |
6119 | * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb | |
6120 | * @phba: Pointer to HBA context object. | |
6121 | * @ring_number: SLI ring number to issue iocb on. | |
6122 | * @piocb: Pointer to command iocb. | |
6123 | * @flag: Flag indicating if this command can be put into txq. | |
6124 | * | |
6125 | * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue | |
6126 | * an iocb command to an HBA with SLI-4 interface spec. | |
6127 | * | |
6128 | * This function is called with hbalock held. The function will return success | |
6129 | * after it successfully submit the iocb to firmware or after adding to the | |
6130 | * txq. | |
6131 | **/ | |
6132 | static int | |
6133 | __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number, | |
6134 | struct lpfc_iocbq *piocb, uint32_t flag) | |
6135 | { | |
6136 | struct lpfc_sglq *sglq; | |
6137 | uint16_t xritag; | |
6138 | union lpfc_wqe wqe; | |
6139 | struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number]; | |
4f774513 JS |
6140 | |
6141 | if (piocb->sli4_xritag == NO_XRI) { | |
6142 | if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN || | |
6669f9bb | 6143 | piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN) |
4f774513 JS |
6144 | sglq = NULL; |
6145 | else { | |
6146 | sglq = __lpfc_sli_get_sglq(phba); | |
6147 | if (!sglq) | |
6148 | return IOCB_ERROR; | |
6149 | piocb->sli4_xritag = sglq->sli4_xritag; | |
6150 | } | |
6151 | } else if (piocb->iocb_flag & LPFC_IO_FCP) { | |
6152 | sglq = NULL; /* These IO's already have an XRI and | |
6153 | * a mapped sgl. | |
6154 | */ | |
6155 | } else { | |
6156 | /* This is a continuation of a commandi,(CX) so this | |
6157 | * sglq is on the active list | |
6158 | */ | |
6159 | sglq = __lpfc_get_active_sglq(phba, piocb->sli4_xritag); | |
6160 | if (!sglq) | |
6161 | return IOCB_ERROR; | |
6162 | } | |
6163 | ||
6164 | if (sglq) { | |
6165 | xritag = lpfc_sli4_bpl2sgl(phba, piocb, sglq); | |
6166 | if (xritag != sglq->sli4_xritag) | |
6167 | return IOCB_ERROR; | |
6168 | } | |
6169 | ||
6170 | if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe)) | |
6171 | return IOCB_ERROR; | |
6172 | ||
341af102 JS |
6173 | if ((piocb->iocb_flag & LPFC_IO_FCP) || |
6174 | (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) { | |
5ffc266e JS |
6175 | /* |
6176 | * For FCP command IOCB, get a new WQ index to distribute | |
6177 | * WQE across the WQsr. On the other hand, for abort IOCB, | |
6178 | * it carries the same WQ index to the original command | |
6179 | * IOCB. | |
6180 | */ | |
341af102 | 6181 | if (piocb->iocb_flag & LPFC_IO_FCP) |
5ffc266e JS |
6182 | piocb->fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba); |
6183 | if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx], | |
6184 | &wqe)) | |
4f774513 JS |
6185 | return IOCB_ERROR; |
6186 | } else { | |
6187 | if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe)) | |
6188 | return IOCB_ERROR; | |
6189 | } | |
6190 | lpfc_sli_ringtxcmpl_put(phba, pring, piocb); | |
6191 | ||
6192 | return 0; | |
6193 | } | |
6194 | ||
6195 | /** | |
6196 | * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb | |
6197 | * | |
6198 | * This routine wraps the actual lockless version for issusing IOCB function | |
6199 | * pointer from the lpfc_hba struct. | |
6200 | * | |
6201 | * Return codes: | |
6202 | * IOCB_ERROR - Error | |
6203 | * IOCB_SUCCESS - Success | |
6204 | * IOCB_BUSY - Busy | |
6205 | **/ | |
6206 | static inline int | |
6207 | __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number, | |
6208 | struct lpfc_iocbq *piocb, uint32_t flag) | |
6209 | { | |
6210 | return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag); | |
6211 | } | |
6212 | ||
6213 | /** | |
6214 | * lpfc_sli_api_table_setup - Set up sli api fucntion jump table | |
6215 | * @phba: The hba struct for which this call is being executed. | |
6216 | * @dev_grp: The HBA PCI-Device group number. | |
6217 | * | |
6218 | * This routine sets up the SLI interface API function jump table in @phba | |
6219 | * struct. | |
6220 | * Returns: 0 - success, -ENODEV - failure. | |
6221 | **/ | |
6222 | int | |
6223 | lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) | |
6224 | { | |
6225 | ||
6226 | switch (dev_grp) { | |
6227 | case LPFC_PCI_DEV_LP: | |
6228 | phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3; | |
6229 | phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3; | |
6230 | break; | |
6231 | case LPFC_PCI_DEV_OC: | |
6232 | phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4; | |
6233 | phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4; | |
6234 | break; | |
6235 | default: | |
6236 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6237 | "1419 Invalid HBA PCI-device group: 0x%x\n", | |
6238 | dev_grp); | |
6239 | return -ENODEV; | |
6240 | break; | |
6241 | } | |
6242 | phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq; | |
6243 | return 0; | |
6244 | } | |
6245 | ||
6246 | /** | |
6247 | * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb | |
6248 | * @phba: Pointer to HBA context object. | |
6249 | * @pring: Pointer to driver SLI ring object. | |
6250 | * @piocb: Pointer to command iocb. | |
6251 | * @flag: Flag indicating if this command can be put into txq. | |
6252 | * | |
6253 | * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb | |
6254 | * function. This function gets the hbalock and calls | |
6255 | * __lpfc_sli_issue_iocb function and will return the error returned | |
6256 | * by __lpfc_sli_issue_iocb function. This wrapper is used by | |
6257 | * functions which do not hold hbalock. | |
6258 | **/ | |
6259 | int | |
6260 | lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number, | |
6261 | struct lpfc_iocbq *piocb, uint32_t flag) | |
6262 | { | |
6263 | unsigned long iflags; | |
6264 | int rc; | |
6265 | ||
6266 | spin_lock_irqsave(&phba->hbalock, iflags); | |
6267 | rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag); | |
6268 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
6269 | ||
6270 | return rc; | |
6271 | } | |
6272 | ||
6273 | /** | |
6274 | * lpfc_extra_ring_setup - Extra ring setup function | |
6275 | * @phba: Pointer to HBA context object. | |
6276 | * | |
6277 | * This function is called while driver attaches with the | |
6278 | * HBA to setup the extra ring. The extra ring is used | |
6279 | * only when driver needs to support target mode functionality | |
6280 | * or IP over FC functionalities. | |
6281 | * | |
6282 | * This function is called with no lock held. | |
6283 | **/ | |
6284 | static int | |
6285 | lpfc_extra_ring_setup( struct lpfc_hba *phba) | |
6286 | { | |
6287 | struct lpfc_sli *psli; | |
6288 | struct lpfc_sli_ring *pring; | |
6289 | ||
6290 | psli = &phba->sli; | |
6291 | ||
6292 | /* Adjust cmd/rsp ring iocb entries more evenly */ | |
6293 | ||
6294 | /* Take some away from the FCP ring */ | |
6295 | pring = &psli->ring[psli->fcp_ring]; | |
6296 | pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
6297 | pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
cf5bf97e JW |
6298 | pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES; |
6299 | pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
6300 | ||
a4bc3379 JS |
6301 | /* and give them to the extra ring */ |
6302 | pring = &psli->ring[psli->extra_ring]; | |
6303 | ||
cf5bf97e JW |
6304 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; |
6305 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
6306 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
6307 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
6308 | ||
6309 | /* Setup default profile for this ring */ | |
6310 | pring->iotag_max = 4096; | |
6311 | pring->num_mask = 1; | |
6312 | pring->prt[0].profile = 0; /* Mask 0 */ | |
a4bc3379 JS |
6313 | pring->prt[0].rctl = phba->cfg_multi_ring_rctl; |
6314 | pring->prt[0].type = phba->cfg_multi_ring_type; | |
cf5bf97e JW |
6315 | pring->prt[0].lpfc_sli_rcv_unsol_event = NULL; |
6316 | return 0; | |
6317 | } | |
6318 | ||
e59058c4 | 6319 | /** |
3621a710 | 6320 | * lpfc_sli_async_event_handler - ASYNC iocb handler function |
e59058c4 JS |
6321 | * @phba: Pointer to HBA context object. |
6322 | * @pring: Pointer to driver SLI ring object. | |
6323 | * @iocbq: Pointer to iocb object. | |
6324 | * | |
6325 | * This function is called by the slow ring event handler | |
6326 | * function when there is an ASYNC event iocb in the ring. | |
6327 | * This function is called with no lock held. | |
6328 | * Currently this function handles only temperature related | |
6329 | * ASYNC events. The function decodes the temperature sensor | |
6330 | * event message and posts events for the management applications. | |
6331 | **/ | |
98c9ea5c | 6332 | static void |
57127f15 JS |
6333 | lpfc_sli_async_event_handler(struct lpfc_hba * phba, |
6334 | struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq) | |
6335 | { | |
6336 | IOCB_t *icmd; | |
6337 | uint16_t evt_code; | |
6338 | uint16_t temp; | |
6339 | struct temp_event temp_event_data; | |
6340 | struct Scsi_Host *shost; | |
a257bf90 | 6341 | uint32_t *iocb_w; |
57127f15 JS |
6342 | |
6343 | icmd = &iocbq->iocb; | |
6344 | evt_code = icmd->un.asyncstat.evt_code; | |
6345 | temp = icmd->ulpContext; | |
6346 | ||
6347 | if ((evt_code != ASYNC_TEMP_WARN) && | |
6348 | (evt_code != ASYNC_TEMP_SAFE)) { | |
a257bf90 | 6349 | iocb_w = (uint32_t *) icmd; |
57127f15 JS |
6350 | lpfc_printf_log(phba, |
6351 | KERN_ERR, | |
6352 | LOG_SLI, | |
76bb24ef | 6353 | "0346 Ring %d handler: unexpected ASYNC_STATUS" |
e4e74273 | 6354 | " evt_code 0x%x\n" |
a257bf90 JS |
6355 | "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n" |
6356 | "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n" | |
6357 | "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n" | |
6358 | "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n", | |
57127f15 | 6359 | pring->ringno, |
a257bf90 JS |
6360 | icmd->un.asyncstat.evt_code, |
6361 | iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3], | |
6362 | iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7], | |
6363 | iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11], | |
6364 | iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]); | |
6365 | ||
57127f15 JS |
6366 | return; |
6367 | } | |
6368 | temp_event_data.data = (uint32_t)temp; | |
6369 | temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; | |
6370 | if (evt_code == ASYNC_TEMP_WARN) { | |
6371 | temp_event_data.event_code = LPFC_THRESHOLD_TEMP; | |
6372 | lpfc_printf_log(phba, | |
09372820 | 6373 | KERN_ERR, |
57127f15 | 6374 | LOG_TEMP, |
76bb24ef | 6375 | "0347 Adapter is very hot, please take " |
57127f15 JS |
6376 | "corrective action. temperature : %d Celsius\n", |
6377 | temp); | |
6378 | } | |
6379 | if (evt_code == ASYNC_TEMP_SAFE) { | |
6380 | temp_event_data.event_code = LPFC_NORMAL_TEMP; | |
6381 | lpfc_printf_log(phba, | |
09372820 | 6382 | KERN_ERR, |
57127f15 JS |
6383 | LOG_TEMP, |
6384 | "0340 Adapter temperature is OK now. " | |
6385 | "temperature : %d Celsius\n", | |
6386 | temp); | |
6387 | } | |
6388 | ||
6389 | /* Send temperature change event to applications */ | |
6390 | shost = lpfc_shost_from_vport(phba->pport); | |
6391 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
6392 | sizeof(temp_event_data), (char *) &temp_event_data, | |
ddcc50f0 | 6393 | LPFC_NL_VENDOR_ID); |
57127f15 JS |
6394 | |
6395 | } | |
6396 | ||
6397 | ||
e59058c4 | 6398 | /** |
3621a710 | 6399 | * lpfc_sli_setup - SLI ring setup function |
e59058c4 JS |
6400 | * @phba: Pointer to HBA context object. |
6401 | * | |
6402 | * lpfc_sli_setup sets up rings of the SLI interface with | |
6403 | * number of iocbs per ring and iotags. This function is | |
6404 | * called while driver attach to the HBA and before the | |
6405 | * interrupts are enabled. So there is no need for locking. | |
6406 | * | |
6407 | * This function always returns 0. | |
6408 | **/ | |
dea3101e | 6409 | int |
6410 | lpfc_sli_setup(struct lpfc_hba *phba) | |
6411 | { | |
ed957684 | 6412 | int i, totiocbsize = 0; |
dea3101e | 6413 | struct lpfc_sli *psli = &phba->sli; |
6414 | struct lpfc_sli_ring *pring; | |
6415 | ||
6416 | psli->num_rings = MAX_CONFIGURED_RINGS; | |
6417 | psli->sli_flag = 0; | |
6418 | psli->fcp_ring = LPFC_FCP_RING; | |
6419 | psli->next_ring = LPFC_FCP_NEXT_RING; | |
a4bc3379 | 6420 | psli->extra_ring = LPFC_EXTRA_RING; |
dea3101e | 6421 | |
604a3e30 JB |
6422 | psli->iocbq_lookup = NULL; |
6423 | psli->iocbq_lookup_len = 0; | |
6424 | psli->last_iotag = 0; | |
6425 | ||
dea3101e | 6426 | for (i = 0; i < psli->num_rings; i++) { |
6427 | pring = &psli->ring[i]; | |
6428 | switch (i) { | |
6429 | case LPFC_FCP_RING: /* ring 0 - FCP */ | |
6430 | /* numCiocb and numRiocb are used in config_port */ | |
6431 | pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES; | |
6432 | pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES; | |
6433 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
6434 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
6435 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
6436 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
ed957684 | 6437 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6438 | SLI3_IOCB_CMD_SIZE : |
6439 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 6440 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6441 | SLI3_IOCB_RSP_SIZE : |
6442 | SLI2_IOCB_RSP_SIZE; | |
dea3101e | 6443 | pring->iotag_ctr = 0; |
6444 | pring->iotag_max = | |
92d7f7b0 | 6445 | (phba->cfg_hba_queue_depth * 2); |
dea3101e | 6446 | pring->fast_iotag = pring->iotag_max; |
6447 | pring->num_mask = 0; | |
6448 | break; | |
a4bc3379 | 6449 | case LPFC_EXTRA_RING: /* ring 1 - EXTRA */ |
dea3101e | 6450 | /* numCiocb and numRiocb are used in config_port */ |
6451 | pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES; | |
6452 | pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES; | |
ed957684 | 6453 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6454 | SLI3_IOCB_CMD_SIZE : |
6455 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 6456 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6457 | SLI3_IOCB_RSP_SIZE : |
6458 | SLI2_IOCB_RSP_SIZE; | |
2e0fef85 | 6459 | pring->iotag_max = phba->cfg_hba_queue_depth; |
dea3101e | 6460 | pring->num_mask = 0; |
6461 | break; | |
6462 | case LPFC_ELS_RING: /* ring 2 - ELS / CT */ | |
6463 | /* numCiocb and numRiocb are used in config_port */ | |
6464 | pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES; | |
6465 | pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES; | |
ed957684 | 6466 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6467 | SLI3_IOCB_CMD_SIZE : |
6468 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 6469 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6470 | SLI3_IOCB_RSP_SIZE : |
6471 | SLI2_IOCB_RSP_SIZE; | |
dea3101e | 6472 | pring->fast_iotag = 0; |
6473 | pring->iotag_ctr = 0; | |
6474 | pring->iotag_max = 4096; | |
57127f15 JS |
6475 | pring->lpfc_sli_rcv_async_status = |
6476 | lpfc_sli_async_event_handler; | |
6669f9bb | 6477 | pring->num_mask = LPFC_MAX_RING_MASK; |
dea3101e | 6478 | pring->prt[0].profile = 0; /* Mask 0 */ |
6a9c52cf JS |
6479 | pring->prt[0].rctl = FC_RCTL_ELS_REQ; |
6480 | pring->prt[0].type = FC_TYPE_ELS; | |
dea3101e | 6481 | pring->prt[0].lpfc_sli_rcv_unsol_event = |
92d7f7b0 | 6482 | lpfc_els_unsol_event; |
dea3101e | 6483 | pring->prt[1].profile = 0; /* Mask 1 */ |
6a9c52cf JS |
6484 | pring->prt[1].rctl = FC_RCTL_ELS_REP; |
6485 | pring->prt[1].type = FC_TYPE_ELS; | |
dea3101e | 6486 | pring->prt[1].lpfc_sli_rcv_unsol_event = |
92d7f7b0 | 6487 | lpfc_els_unsol_event; |
dea3101e | 6488 | pring->prt[2].profile = 0; /* Mask 2 */ |
6489 | /* NameServer Inquiry */ | |
6a9c52cf | 6490 | pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL; |
dea3101e | 6491 | /* NameServer */ |
6a9c52cf | 6492 | pring->prt[2].type = FC_TYPE_CT; |
dea3101e | 6493 | pring->prt[2].lpfc_sli_rcv_unsol_event = |
92d7f7b0 | 6494 | lpfc_ct_unsol_event; |
dea3101e | 6495 | pring->prt[3].profile = 0; /* Mask 3 */ |
6496 | /* NameServer response */ | |
6a9c52cf | 6497 | pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL; |
dea3101e | 6498 | /* NameServer */ |
6a9c52cf | 6499 | pring->prt[3].type = FC_TYPE_CT; |
dea3101e | 6500 | pring->prt[3].lpfc_sli_rcv_unsol_event = |
92d7f7b0 | 6501 | lpfc_ct_unsol_event; |
6669f9bb JS |
6502 | /* abort unsolicited sequence */ |
6503 | pring->prt[4].profile = 0; /* Mask 4 */ | |
6504 | pring->prt[4].rctl = FC_RCTL_BA_ABTS; | |
6505 | pring->prt[4].type = FC_TYPE_BLS; | |
6506 | pring->prt[4].lpfc_sli_rcv_unsol_event = | |
6507 | lpfc_sli4_ct_abort_unsol_event; | |
dea3101e | 6508 | break; |
6509 | } | |
ed957684 | 6510 | totiocbsize += (pring->numCiocb * pring->sizeCiocb) + |
92d7f7b0 | 6511 | (pring->numRiocb * pring->sizeRiocb); |
dea3101e | 6512 | } |
ed957684 | 6513 | if (totiocbsize > MAX_SLIM_IOCB_SIZE) { |
dea3101e | 6514 | /* Too many cmd / rsp ring entries in SLI2 SLIM */ |
e8b62011 JS |
6515 | printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in " |
6516 | "SLI2 SLIM Data: x%x x%lx\n", | |
6517 | phba->brd_no, totiocbsize, | |
6518 | (unsigned long) MAX_SLIM_IOCB_SIZE); | |
dea3101e | 6519 | } |
cf5bf97e JW |
6520 | if (phba->cfg_multi_ring_support == 2) |
6521 | lpfc_extra_ring_setup(phba); | |
dea3101e | 6522 | |
6523 | return 0; | |
6524 | } | |
6525 | ||
e59058c4 | 6526 | /** |
3621a710 | 6527 | * lpfc_sli_queue_setup - Queue initialization function |
e59058c4 JS |
6528 | * @phba: Pointer to HBA context object. |
6529 | * | |
6530 | * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each | |
6531 | * ring. This function also initializes ring indices of each ring. | |
6532 | * This function is called during the initialization of the SLI | |
6533 | * interface of an HBA. | |
6534 | * This function is called with no lock held and always returns | |
6535 | * 1. | |
6536 | **/ | |
dea3101e | 6537 | int |
2e0fef85 | 6538 | lpfc_sli_queue_setup(struct lpfc_hba *phba) |
dea3101e | 6539 | { |
6540 | struct lpfc_sli *psli; | |
6541 | struct lpfc_sli_ring *pring; | |
604a3e30 | 6542 | int i; |
dea3101e | 6543 | |
6544 | psli = &phba->sli; | |
2e0fef85 | 6545 | spin_lock_irq(&phba->hbalock); |
dea3101e | 6546 | INIT_LIST_HEAD(&psli->mboxq); |
92d7f7b0 | 6547 | INIT_LIST_HEAD(&psli->mboxq_cmpl); |
dea3101e | 6548 | /* Initialize list headers for txq and txcmplq as double linked lists */ |
6549 | for (i = 0; i < psli->num_rings; i++) { | |
6550 | pring = &psli->ring[i]; | |
6551 | pring->ringno = i; | |
6552 | pring->next_cmdidx = 0; | |
6553 | pring->local_getidx = 0; | |
6554 | pring->cmdidx = 0; | |
6555 | INIT_LIST_HEAD(&pring->txq); | |
6556 | INIT_LIST_HEAD(&pring->txcmplq); | |
6557 | INIT_LIST_HEAD(&pring->iocb_continueq); | |
9c2face6 | 6558 | INIT_LIST_HEAD(&pring->iocb_continue_saveq); |
dea3101e | 6559 | INIT_LIST_HEAD(&pring->postbufq); |
dea3101e | 6560 | } |
2e0fef85 JS |
6561 | spin_unlock_irq(&phba->hbalock); |
6562 | return 1; | |
dea3101e | 6563 | } |
6564 | ||
04c68496 JS |
6565 | /** |
6566 | * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system | |
6567 | * @phba: Pointer to HBA context object. | |
6568 | * | |
6569 | * This routine flushes the mailbox command subsystem. It will unconditionally | |
6570 | * flush all the mailbox commands in the three possible stages in the mailbox | |
6571 | * command sub-system: pending mailbox command queue; the outstanding mailbox | |
6572 | * command; and completed mailbox command queue. It is caller's responsibility | |
6573 | * to make sure that the driver is in the proper state to flush the mailbox | |
6574 | * command sub-system. Namely, the posting of mailbox commands into the | |
6575 | * pending mailbox command queue from the various clients must be stopped; | |
6576 | * either the HBA is in a state that it will never works on the outstanding | |
6577 | * mailbox command (such as in EEH or ERATT conditions) or the outstanding | |
6578 | * mailbox command has been completed. | |
6579 | **/ | |
6580 | static void | |
6581 | lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba) | |
6582 | { | |
6583 | LIST_HEAD(completions); | |
6584 | struct lpfc_sli *psli = &phba->sli; | |
6585 | LPFC_MBOXQ_t *pmb; | |
6586 | unsigned long iflag; | |
6587 | ||
6588 | /* Flush all the mailbox commands in the mbox system */ | |
6589 | spin_lock_irqsave(&phba->hbalock, iflag); | |
6590 | /* The pending mailbox command queue */ | |
6591 | list_splice_init(&phba->sli.mboxq, &completions); | |
6592 | /* The outstanding active mailbox command */ | |
6593 | if (psli->mbox_active) { | |
6594 | list_add_tail(&psli->mbox_active->list, &completions); | |
6595 | psli->mbox_active = NULL; | |
6596 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
6597 | } | |
6598 | /* The completed mailbox command queue */ | |
6599 | list_splice_init(&phba->sli.mboxq_cmpl, &completions); | |
6600 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
6601 | ||
6602 | /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */ | |
6603 | while (!list_empty(&completions)) { | |
6604 | list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list); | |
6605 | pmb->u.mb.mbxStatus = MBX_NOT_FINISHED; | |
6606 | if (pmb->mbox_cmpl) | |
6607 | pmb->mbox_cmpl(phba, pmb); | |
6608 | } | |
6609 | } | |
6610 | ||
e59058c4 | 6611 | /** |
3621a710 | 6612 | * lpfc_sli_host_down - Vport cleanup function |
e59058c4 JS |
6613 | * @vport: Pointer to virtual port object. |
6614 | * | |
6615 | * lpfc_sli_host_down is called to clean up the resources | |
6616 | * associated with a vport before destroying virtual | |
6617 | * port data structures. | |
6618 | * This function does following operations: | |
6619 | * - Free discovery resources associated with this virtual | |
6620 | * port. | |
6621 | * - Free iocbs associated with this virtual port in | |
6622 | * the txq. | |
6623 | * - Send abort for all iocb commands associated with this | |
6624 | * vport in txcmplq. | |
6625 | * | |
6626 | * This function is called with no lock held and always returns 1. | |
6627 | **/ | |
92d7f7b0 JS |
6628 | int |
6629 | lpfc_sli_host_down(struct lpfc_vport *vport) | |
6630 | { | |
858c9f6c | 6631 | LIST_HEAD(completions); |
92d7f7b0 JS |
6632 | struct lpfc_hba *phba = vport->phba; |
6633 | struct lpfc_sli *psli = &phba->sli; | |
6634 | struct lpfc_sli_ring *pring; | |
6635 | struct lpfc_iocbq *iocb, *next_iocb; | |
92d7f7b0 JS |
6636 | int i; |
6637 | unsigned long flags = 0; | |
6638 | uint16_t prev_pring_flag; | |
6639 | ||
6640 | lpfc_cleanup_discovery_resources(vport); | |
6641 | ||
6642 | spin_lock_irqsave(&phba->hbalock, flags); | |
92d7f7b0 JS |
6643 | for (i = 0; i < psli->num_rings; i++) { |
6644 | pring = &psli->ring[i]; | |
6645 | prev_pring_flag = pring->flag; | |
5e9d9b82 JS |
6646 | /* Only slow rings */ |
6647 | if (pring->ringno == LPFC_ELS_RING) { | |
858c9f6c | 6648 | pring->flag |= LPFC_DEFERRED_RING_EVENT; |
5e9d9b82 JS |
6649 | /* Set the lpfc data pending flag */ |
6650 | set_bit(LPFC_DATA_READY, &phba->data_flags); | |
6651 | } | |
92d7f7b0 JS |
6652 | /* |
6653 | * Error everything on the txq since these iocbs have not been | |
6654 | * given to the FW yet. | |
6655 | */ | |
92d7f7b0 JS |
6656 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { |
6657 | if (iocb->vport != vport) | |
6658 | continue; | |
858c9f6c | 6659 | list_move_tail(&iocb->list, &completions); |
92d7f7b0 | 6660 | pring->txq_cnt--; |
92d7f7b0 JS |
6661 | } |
6662 | ||
6663 | /* Next issue ABTS for everything on the txcmplq */ | |
6664 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, | |
6665 | list) { | |
6666 | if (iocb->vport != vport) | |
6667 | continue; | |
6668 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
6669 | } | |
6670 | ||
6671 | pring->flag = prev_pring_flag; | |
6672 | } | |
6673 | ||
6674 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
6675 | ||
a257bf90 JS |
6676 | /* Cancel all the IOCBs from the completions list */ |
6677 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6678 | IOERR_SLI_DOWN); | |
92d7f7b0 JS |
6679 | return 1; |
6680 | } | |
6681 | ||
e59058c4 | 6682 | /** |
3621a710 | 6683 | * lpfc_sli_hba_down - Resource cleanup function for the HBA |
e59058c4 JS |
6684 | * @phba: Pointer to HBA context object. |
6685 | * | |
6686 | * This function cleans up all iocb, buffers, mailbox commands | |
6687 | * while shutting down the HBA. This function is called with no | |
6688 | * lock held and always returns 1. | |
6689 | * This function does the following to cleanup driver resources: | |
6690 | * - Free discovery resources for each virtual port | |
6691 | * - Cleanup any pending fabric iocbs | |
6692 | * - Iterate through the iocb txq and free each entry | |
6693 | * in the list. | |
6694 | * - Free up any buffer posted to the HBA | |
6695 | * - Free mailbox commands in the mailbox queue. | |
6696 | **/ | |
dea3101e | 6697 | int |
2e0fef85 | 6698 | lpfc_sli_hba_down(struct lpfc_hba *phba) |
dea3101e | 6699 | { |
2534ba75 | 6700 | LIST_HEAD(completions); |
2e0fef85 | 6701 | struct lpfc_sli *psli = &phba->sli; |
dea3101e | 6702 | struct lpfc_sli_ring *pring; |
0ff10d46 | 6703 | struct lpfc_dmabuf *buf_ptr; |
dea3101e | 6704 | unsigned long flags = 0; |
04c68496 JS |
6705 | int i; |
6706 | ||
6707 | /* Shutdown the mailbox command sub-system */ | |
6708 | lpfc_sli_mbox_sys_shutdown(phba); | |
dea3101e | 6709 | |
dea3101e | 6710 | lpfc_hba_down_prep(phba); |
6711 | ||
92d7f7b0 JS |
6712 | lpfc_fabric_abort_hba(phba); |
6713 | ||
2e0fef85 | 6714 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e | 6715 | for (i = 0; i < psli->num_rings; i++) { |
6716 | pring = &psli->ring[i]; | |
5e9d9b82 JS |
6717 | /* Only slow rings */ |
6718 | if (pring->ringno == LPFC_ELS_RING) { | |
858c9f6c | 6719 | pring->flag |= LPFC_DEFERRED_RING_EVENT; |
5e9d9b82 JS |
6720 | /* Set the lpfc data pending flag */ |
6721 | set_bit(LPFC_DATA_READY, &phba->data_flags); | |
6722 | } | |
dea3101e | 6723 | |
6724 | /* | |
6725 | * Error everything on the txq since these iocbs have not been | |
6726 | * given to the FW yet. | |
6727 | */ | |
2534ba75 | 6728 | list_splice_init(&pring->txq, &completions); |
dea3101e | 6729 | pring->txq_cnt = 0; |
6730 | ||
2534ba75 | 6731 | } |
2e0fef85 | 6732 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e | 6733 | |
a257bf90 JS |
6734 | /* Cancel all the IOCBs from the completions list */ |
6735 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6736 | IOERR_SLI_DOWN); | |
dea3101e | 6737 | |
0ff10d46 JS |
6738 | spin_lock_irqsave(&phba->hbalock, flags); |
6739 | list_splice_init(&phba->elsbuf, &completions); | |
6740 | phba->elsbuf_cnt = 0; | |
6741 | phba->elsbuf_prev_cnt = 0; | |
6742 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
6743 | ||
6744 | while (!list_empty(&completions)) { | |
6745 | list_remove_head(&completions, buf_ptr, | |
6746 | struct lpfc_dmabuf, list); | |
6747 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
6748 | kfree(buf_ptr); | |
6749 | } | |
6750 | ||
dea3101e | 6751 | /* Return any active mbox cmds */ |
6752 | del_timer_sync(&psli->mbox_tmo); | |
2e0fef85 | 6753 | |
da0436e9 | 6754 | spin_lock_irqsave(&phba->pport->work_port_lock, flags); |
2e0fef85 | 6755 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; |
da0436e9 | 6756 | spin_unlock_irqrestore(&phba->pport->work_port_lock, flags); |
2e0fef85 | 6757 | |
da0436e9 JS |
6758 | return 1; |
6759 | } | |
6760 | ||
6761 | /** | |
6762 | * lpfc_sli4_hba_down - PCI function resource cleanup for the SLI4 HBA | |
6763 | * @phba: Pointer to HBA context object. | |
6764 | * | |
6765 | * This function cleans up all queues, iocb, buffers, mailbox commands while | |
6766 | * shutting down the SLI4 HBA FCoE function. This function is called with no | |
6767 | * lock held and always returns 1. | |
6768 | * | |
6769 | * This function does the following to cleanup driver FCoE function resources: | |
6770 | * - Free discovery resources for each virtual port | |
6771 | * - Cleanup any pending fabric iocbs | |
6772 | * - Iterate through the iocb txq and free each entry in the list. | |
6773 | * - Free up any buffer posted to the HBA. | |
6774 | * - Clean up all the queue entries: WQ, RQ, MQ, EQ, CQ, etc. | |
6775 | * - Free mailbox commands in the mailbox queue. | |
6776 | **/ | |
6777 | int | |
6778 | lpfc_sli4_hba_down(struct lpfc_hba *phba) | |
6779 | { | |
6780 | /* Stop the SLI4 device port */ | |
6781 | lpfc_stop_port(phba); | |
6782 | ||
6783 | /* Tear down the queues in the HBA */ | |
6784 | lpfc_sli4_queue_unset(phba); | |
6785 | ||
6786 | /* unregister default FCFI from the HBA */ | |
6787 | lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi); | |
92d7f7b0 | 6788 | |
dea3101e | 6789 | return 1; |
6790 | } | |
6791 | ||
e59058c4 | 6792 | /** |
3621a710 | 6793 | * lpfc_sli_pcimem_bcopy - SLI memory copy function |
e59058c4 JS |
6794 | * @srcp: Source memory pointer. |
6795 | * @destp: Destination memory pointer. | |
6796 | * @cnt: Number of words required to be copied. | |
6797 | * | |
6798 | * This function is used for copying data between driver memory | |
6799 | * and the SLI memory. This function also changes the endianness | |
6800 | * of each word if native endianness is different from SLI | |
6801 | * endianness. This function can be called with or without | |
6802 | * lock. | |
6803 | **/ | |
dea3101e | 6804 | void |
6805 | lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt) | |
6806 | { | |
6807 | uint32_t *src = srcp; | |
6808 | uint32_t *dest = destp; | |
6809 | uint32_t ldata; | |
6810 | int i; | |
6811 | ||
6812 | for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) { | |
6813 | ldata = *src; | |
6814 | ldata = le32_to_cpu(ldata); | |
6815 | *dest = ldata; | |
6816 | src++; | |
6817 | dest++; | |
6818 | } | |
6819 | } | |
6820 | ||
e59058c4 | 6821 | |
a0c87cbd JS |
6822 | /** |
6823 | * lpfc_sli_bemem_bcopy - SLI memory copy function | |
6824 | * @srcp: Source memory pointer. | |
6825 | * @destp: Destination memory pointer. | |
6826 | * @cnt: Number of words required to be copied. | |
6827 | * | |
6828 | * This function is used for copying data between a data structure | |
6829 | * with big endian representation to local endianness. | |
6830 | * This function can be called with or without lock. | |
6831 | **/ | |
6832 | void | |
6833 | lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt) | |
6834 | { | |
6835 | uint32_t *src = srcp; | |
6836 | uint32_t *dest = destp; | |
6837 | uint32_t ldata; | |
6838 | int i; | |
6839 | ||
6840 | for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) { | |
6841 | ldata = *src; | |
6842 | ldata = be32_to_cpu(ldata); | |
6843 | *dest = ldata; | |
6844 | src++; | |
6845 | dest++; | |
6846 | } | |
6847 | } | |
6848 | ||
e59058c4 | 6849 | /** |
3621a710 | 6850 | * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq |
e59058c4 JS |
6851 | * @phba: Pointer to HBA context object. |
6852 | * @pring: Pointer to driver SLI ring object. | |
6853 | * @mp: Pointer to driver buffer object. | |
6854 | * | |
6855 | * This function is called with no lock held. | |
6856 | * It always return zero after adding the buffer to the postbufq | |
6857 | * buffer list. | |
6858 | **/ | |
dea3101e | 6859 | int |
2e0fef85 JS |
6860 | lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
6861 | struct lpfc_dmabuf *mp) | |
dea3101e | 6862 | { |
6863 | /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up | |
6864 | later */ | |
2e0fef85 | 6865 | spin_lock_irq(&phba->hbalock); |
dea3101e | 6866 | list_add_tail(&mp->list, &pring->postbufq); |
dea3101e | 6867 | pring->postbufq_cnt++; |
2e0fef85 | 6868 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 6869 | return 0; |
6870 | } | |
6871 | ||
e59058c4 | 6872 | /** |
3621a710 | 6873 | * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer |
e59058c4 JS |
6874 | * @phba: Pointer to HBA context object. |
6875 | * | |
6876 | * When HBQ is enabled, buffers are searched based on tags. This function | |
6877 | * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The | |
6878 | * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag | |
6879 | * does not conflict with tags of buffer posted for unsolicited events. | |
6880 | * The function returns the allocated tag. The function is called with | |
6881 | * no locks held. | |
6882 | **/ | |
76bb24ef JS |
6883 | uint32_t |
6884 | lpfc_sli_get_buffer_tag(struct lpfc_hba *phba) | |
6885 | { | |
6886 | spin_lock_irq(&phba->hbalock); | |
6887 | phba->buffer_tag_count++; | |
6888 | /* | |
6889 | * Always set the QUE_BUFTAG_BIT to distiguish between | |
6890 | * a tag assigned by HBQ. | |
6891 | */ | |
6892 | phba->buffer_tag_count |= QUE_BUFTAG_BIT; | |
6893 | spin_unlock_irq(&phba->hbalock); | |
6894 | return phba->buffer_tag_count; | |
6895 | } | |
6896 | ||
e59058c4 | 6897 | /** |
3621a710 | 6898 | * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag |
e59058c4 JS |
6899 | * @phba: Pointer to HBA context object. |
6900 | * @pring: Pointer to driver SLI ring object. | |
6901 | * @tag: Buffer tag. | |
6902 | * | |
6903 | * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq | |
6904 | * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX | |
6905 | * iocb is posted to the response ring with the tag of the buffer. | |
6906 | * This function searches the pring->postbufq list using the tag | |
6907 | * to find buffer associated with CMD_IOCB_RET_XRI64_CX | |
6908 | * iocb. If the buffer is found then lpfc_dmabuf object of the | |
6909 | * buffer is returned to the caller else NULL is returned. | |
6910 | * This function is called with no lock held. | |
6911 | **/ | |
76bb24ef JS |
6912 | struct lpfc_dmabuf * |
6913 | lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
6914 | uint32_t tag) | |
6915 | { | |
6916 | struct lpfc_dmabuf *mp, *next_mp; | |
6917 | struct list_head *slp = &pring->postbufq; | |
6918 | ||
6919 | /* Search postbufq, from the begining, looking for a match on tag */ | |
6920 | spin_lock_irq(&phba->hbalock); | |
6921 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { | |
6922 | if (mp->buffer_tag == tag) { | |
6923 | list_del_init(&mp->list); | |
6924 | pring->postbufq_cnt--; | |
6925 | spin_unlock_irq(&phba->hbalock); | |
6926 | return mp; | |
6927 | } | |
6928 | } | |
6929 | ||
6930 | spin_unlock_irq(&phba->hbalock); | |
6931 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
d7c255b2 | 6932 | "0402 Cannot find virtual addr for buffer tag on " |
76bb24ef JS |
6933 | "ring %d Data x%lx x%p x%p x%x\n", |
6934 | pring->ringno, (unsigned long) tag, | |
6935 | slp->next, slp->prev, pring->postbufq_cnt); | |
6936 | ||
6937 | return NULL; | |
6938 | } | |
dea3101e | 6939 | |
e59058c4 | 6940 | /** |
3621a710 | 6941 | * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events |
e59058c4 JS |
6942 | * @phba: Pointer to HBA context object. |
6943 | * @pring: Pointer to driver SLI ring object. | |
6944 | * @phys: DMA address of the buffer. | |
6945 | * | |
6946 | * This function searches the buffer list using the dma_address | |
6947 | * of unsolicited event to find the driver's lpfc_dmabuf object | |
6948 | * corresponding to the dma_address. The function returns the | |
6949 | * lpfc_dmabuf object if a buffer is found else it returns NULL. | |
6950 | * This function is called by the ct and els unsolicited event | |
6951 | * handlers to get the buffer associated with the unsolicited | |
6952 | * event. | |
6953 | * | |
6954 | * This function is called with no lock held. | |
6955 | **/ | |
dea3101e | 6956 | struct lpfc_dmabuf * |
6957 | lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
6958 | dma_addr_t phys) | |
6959 | { | |
6960 | struct lpfc_dmabuf *mp, *next_mp; | |
6961 | struct list_head *slp = &pring->postbufq; | |
6962 | ||
6963 | /* Search postbufq, from the begining, looking for a match on phys */ | |
2e0fef85 | 6964 | spin_lock_irq(&phba->hbalock); |
dea3101e | 6965 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { |
6966 | if (mp->phys == phys) { | |
6967 | list_del_init(&mp->list); | |
6968 | pring->postbufq_cnt--; | |
2e0fef85 | 6969 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 6970 | return mp; |
6971 | } | |
6972 | } | |
6973 | ||
2e0fef85 | 6974 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 6975 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 6976 | "0410 Cannot find virtual addr for mapped buf on " |
dea3101e | 6977 | "ring %d Data x%llx x%p x%p x%x\n", |
e8b62011 | 6978 | pring->ringno, (unsigned long long)phys, |
dea3101e | 6979 | slp->next, slp->prev, pring->postbufq_cnt); |
6980 | return NULL; | |
6981 | } | |
6982 | ||
e59058c4 | 6983 | /** |
3621a710 | 6984 | * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs |
e59058c4 JS |
6985 | * @phba: Pointer to HBA context object. |
6986 | * @cmdiocb: Pointer to driver command iocb object. | |
6987 | * @rspiocb: Pointer to driver response iocb object. | |
6988 | * | |
6989 | * This function is the completion handler for the abort iocbs for | |
6990 | * ELS commands. This function is called from the ELS ring event | |
6991 | * handler with no lock held. This function frees memory resources | |
6992 | * associated with the abort iocb. | |
6993 | **/ | |
dea3101e | 6994 | static void |
2e0fef85 JS |
6995 | lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
6996 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 6997 | { |
2e0fef85 | 6998 | IOCB_t *irsp = &rspiocb->iocb; |
2680eeaa | 6999 | uint16_t abort_iotag, abort_context; |
92d7f7b0 | 7000 | struct lpfc_iocbq *abort_iocb; |
2680eeaa JS |
7001 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
7002 | ||
7003 | abort_iocb = NULL; | |
2680eeaa JS |
7004 | |
7005 | if (irsp->ulpStatus) { | |
7006 | abort_context = cmdiocb->iocb.un.acxri.abortContextTag; | |
7007 | abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag; | |
7008 | ||
2e0fef85 | 7009 | spin_lock_irq(&phba->hbalock); |
45ed1190 JS |
7010 | if (phba->sli_rev < LPFC_SLI_REV4) { |
7011 | if (abort_iotag != 0 && | |
7012 | abort_iotag <= phba->sli.last_iotag) | |
7013 | abort_iocb = | |
7014 | phba->sli.iocbq_lookup[abort_iotag]; | |
7015 | } else | |
7016 | /* For sli4 the abort_tag is the XRI, | |
7017 | * so the abort routine puts the iotag of the iocb | |
7018 | * being aborted in the context field of the abort | |
7019 | * IOCB. | |
7020 | */ | |
7021 | abort_iocb = phba->sli.iocbq_lookup[abort_context]; | |
2680eeaa | 7022 | |
92d7f7b0 | 7023 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_SLI, |
e8b62011 | 7024 | "0327 Cannot abort els iocb %p " |
92d7f7b0 JS |
7025 | "with tag %x context %x, abort status %x, " |
7026 | "abort code %x\n", | |
e8b62011 JS |
7027 | abort_iocb, abort_iotag, abort_context, |
7028 | irsp->ulpStatus, irsp->un.ulpWord[4]); | |
2680eeaa | 7029 | |
58da1ffb JS |
7030 | /* |
7031 | * If the iocb is not found in Firmware queue the iocb | |
7032 | * might have completed already. Do not free it again. | |
7033 | */ | |
9b379605 | 7034 | if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) { |
45ed1190 JS |
7035 | if (irsp->un.ulpWord[4] != IOERR_NO_XRI) { |
7036 | spin_unlock_irq(&phba->hbalock); | |
7037 | lpfc_sli_release_iocbq(phba, cmdiocb); | |
7038 | return; | |
7039 | } | |
7040 | /* For SLI4 the ulpContext field for abort IOCB | |
7041 | * holds the iotag of the IOCB being aborted so | |
7042 | * the local abort_context needs to be reset to | |
7043 | * match the aborted IOCBs ulpContext. | |
7044 | */ | |
7045 | if (abort_iocb && phba->sli_rev == LPFC_SLI_REV4) | |
7046 | abort_context = abort_iocb->iocb.ulpContext; | |
58da1ffb | 7047 | } |
2680eeaa JS |
7048 | /* |
7049 | * make sure we have the right iocbq before taking it | |
7050 | * off the txcmplq and try to call completion routine. | |
7051 | */ | |
2e0fef85 JS |
7052 | if (!abort_iocb || |
7053 | abort_iocb->iocb.ulpContext != abort_context || | |
7054 | (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0) | |
7055 | spin_unlock_irq(&phba->hbalock); | |
341af102 JS |
7056 | else if (phba->sli_rev < LPFC_SLI_REV4) { |
7057 | /* | |
7058 | * leave the SLI4 aborted command on the txcmplq | |
7059 | * list and the command complete WCQE's XB bit | |
7060 | * will tell whether the SGL (XRI) can be released | |
7061 | * immediately or to the aborted SGL list for the | |
7062 | * following abort XRI from the HBA. | |
7063 | */ | |
92d7f7b0 | 7064 | list_del_init(&abort_iocb->list); |
2680eeaa | 7065 | pring->txcmplq_cnt--; |
2e0fef85 | 7066 | spin_unlock_irq(&phba->hbalock); |
2680eeaa | 7067 | |
0ff10d46 JS |
7068 | /* Firmware could still be in progress of DMAing |
7069 | * payload, so don't free data buffer till after | |
7070 | * a hbeat. | |
7071 | */ | |
341af102 | 7072 | spin_lock_irq(&phba->hbalock); |
0ff10d46 | 7073 | abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE; |
92d7f7b0 | 7074 | abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED; |
341af102 JS |
7075 | spin_unlock_irq(&phba->hbalock); |
7076 | ||
92d7f7b0 | 7077 | abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; |
341af102 | 7078 | abort_iocb->iocb.un.ulpWord[4] = IOERR_ABORT_REQUESTED; |
92d7f7b0 | 7079 | (abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb); |
2680eeaa JS |
7080 | } |
7081 | } | |
7082 | ||
604a3e30 | 7083 | lpfc_sli_release_iocbq(phba, cmdiocb); |
dea3101e | 7084 | return; |
7085 | } | |
7086 | ||
e59058c4 | 7087 | /** |
3621a710 | 7088 | * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command |
e59058c4 JS |
7089 | * @phba: Pointer to HBA context object. |
7090 | * @cmdiocb: Pointer to driver command iocb object. | |
7091 | * @rspiocb: Pointer to driver response iocb object. | |
7092 | * | |
7093 | * The function is called from SLI ring event handler with no | |
7094 | * lock held. This function is the completion handler for ELS commands | |
7095 | * which are aborted. The function frees memory resources used for | |
7096 | * the aborted ELS commands. | |
7097 | **/ | |
92d7f7b0 JS |
7098 | static void |
7099 | lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7100 | struct lpfc_iocbq *rspiocb) | |
7101 | { | |
7102 | IOCB_t *irsp = &rspiocb->iocb; | |
7103 | ||
7104 | /* ELS cmd tag <ulpIoTag> completes */ | |
7105 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
d7c255b2 | 7106 | "0139 Ignoring ELS cmd tag x%x completion Data: " |
92d7f7b0 | 7107 | "x%x x%x x%x\n", |
e8b62011 | 7108 | irsp->ulpIoTag, irsp->ulpStatus, |
92d7f7b0 | 7109 | irsp->un.ulpWord[4], irsp->ulpTimeout); |
858c9f6c JS |
7110 | if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) |
7111 | lpfc_ct_free_iocb(phba, cmdiocb); | |
7112 | else | |
7113 | lpfc_els_free_iocb(phba, cmdiocb); | |
92d7f7b0 JS |
7114 | return; |
7115 | } | |
7116 | ||
e59058c4 | 7117 | /** |
3621a710 | 7118 | * lpfc_sli_issue_abort_iotag - Abort function for a command iocb |
e59058c4 JS |
7119 | * @phba: Pointer to HBA context object. |
7120 | * @pring: Pointer to driver SLI ring object. | |
7121 | * @cmdiocb: Pointer to driver command iocb object. | |
7122 | * | |
7123 | * This function issues an abort iocb for the provided command | |
7124 | * iocb. This function is called with hbalock held. | |
7125 | * The function returns 0 when it fails due to memory allocation | |
7126 | * failure or when the command iocb is an abort request. | |
7127 | **/ | |
dea3101e | 7128 | int |
2e0fef85 JS |
7129 | lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
7130 | struct lpfc_iocbq *cmdiocb) | |
dea3101e | 7131 | { |
2e0fef85 | 7132 | struct lpfc_vport *vport = cmdiocb->vport; |
0bd4ca25 | 7133 | struct lpfc_iocbq *abtsiocbp; |
dea3101e | 7134 | IOCB_t *icmd = NULL; |
7135 | IOCB_t *iabt = NULL; | |
07951076 JS |
7136 | int retval = IOCB_ERROR; |
7137 | ||
92d7f7b0 JS |
7138 | /* |
7139 | * There are certain command types we don't want to abort. And we | |
7140 | * don't want to abort commands that are already in the process of | |
7141 | * being aborted. | |
07951076 JS |
7142 | */ |
7143 | icmd = &cmdiocb->iocb; | |
2e0fef85 | 7144 | if (icmd->ulpCommand == CMD_ABORT_XRI_CN || |
92d7f7b0 JS |
7145 | icmd->ulpCommand == CMD_CLOSE_XRI_CN || |
7146 | (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0) | |
07951076 JS |
7147 | return 0; |
7148 | ||
858c9f6c JS |
7149 | /* If we're unloading, don't abort iocb on the ELS ring, but change the |
7150 | * callback so that nothing happens when it finishes. | |
07951076 | 7151 | */ |
858c9f6c JS |
7152 | if ((vport->load_flag & FC_UNLOADING) && |
7153 | (pring->ringno == LPFC_ELS_RING)) { | |
92d7f7b0 JS |
7154 | if (cmdiocb->iocb_flag & LPFC_IO_FABRIC) |
7155 | cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl; | |
7156 | else | |
7157 | cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl; | |
07951076 | 7158 | goto abort_iotag_exit; |
92d7f7b0 | 7159 | } |
dea3101e | 7160 | |
7161 | /* issue ABTS for this IOCB based on iotag */ | |
92d7f7b0 | 7162 | abtsiocbp = __lpfc_sli_get_iocbq(phba); |
dea3101e | 7163 | if (abtsiocbp == NULL) |
7164 | return 0; | |
dea3101e | 7165 | |
07951076 | 7166 | /* This signals the response to set the correct status |
341af102 | 7167 | * before calling the completion handler |
07951076 JS |
7168 | */ |
7169 | cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED; | |
7170 | ||
dea3101e | 7171 | iabt = &abtsiocbp->iocb; |
07951076 JS |
7172 | iabt->un.acxri.abortType = ABORT_TYPE_ABTS; |
7173 | iabt->un.acxri.abortContextTag = icmd->ulpContext; | |
45ed1190 | 7174 | if (phba->sli_rev == LPFC_SLI_REV4) { |
da0436e9 | 7175 | iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag; |
45ed1190 JS |
7176 | iabt->un.acxri.abortContextTag = cmdiocb->iotag; |
7177 | } | |
da0436e9 JS |
7178 | else |
7179 | iabt->un.acxri.abortIoTag = icmd->ulpIoTag; | |
07951076 JS |
7180 | iabt->ulpLe = 1; |
7181 | iabt->ulpClass = icmd->ulpClass; | |
dea3101e | 7182 | |
5ffc266e JS |
7183 | /* ABTS WQE must go to the same WQ as the WQE to be aborted */ |
7184 | abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx; | |
341af102 JS |
7185 | if (cmdiocb->iocb_flag & LPFC_IO_FCP) |
7186 | abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX; | |
5ffc266e | 7187 | |
2e0fef85 | 7188 | if (phba->link_state >= LPFC_LINK_UP) |
07951076 JS |
7189 | iabt->ulpCommand = CMD_ABORT_XRI_CN; |
7190 | else | |
7191 | iabt->ulpCommand = CMD_CLOSE_XRI_CN; | |
dea3101e | 7192 | |
07951076 | 7193 | abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl; |
5b8bd0c9 | 7194 | |
e8b62011 JS |
7195 | lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, |
7196 | "0339 Abort xri x%x, original iotag x%x, " | |
7197 | "abort cmd iotag x%x\n", | |
7198 | iabt->un.acxri.abortContextTag, | |
7199 | iabt->un.acxri.abortIoTag, abtsiocbp->iotag); | |
da0436e9 | 7200 | retval = __lpfc_sli_issue_iocb(phba, pring->ringno, abtsiocbp, 0); |
dea3101e | 7201 | |
d7c255b2 JS |
7202 | if (retval) |
7203 | __lpfc_sli_release_iocbq(phba, abtsiocbp); | |
07951076 | 7204 | abort_iotag_exit: |
2e0fef85 JS |
7205 | /* |
7206 | * Caller to this routine should check for IOCB_ERROR | |
7207 | * and handle it properly. This routine no longer removes | |
7208 | * iocb off txcmplq and call compl in case of IOCB_ERROR. | |
07951076 | 7209 | */ |
2e0fef85 | 7210 | return retval; |
dea3101e | 7211 | } |
7212 | ||
e59058c4 | 7213 | /** |
3621a710 | 7214 | * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN |
e59058c4 JS |
7215 | * @iocbq: Pointer to driver iocb object. |
7216 | * @vport: Pointer to driver virtual port object. | |
7217 | * @tgt_id: SCSI ID of the target. | |
7218 | * @lun_id: LUN ID of the scsi device. | |
7219 | * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST | |
7220 | * | |
3621a710 | 7221 | * This function acts as an iocb filter for functions which abort or count |
e59058c4 JS |
7222 | * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return |
7223 | * 0 if the filtering criteria is met for the given iocb and will return | |
7224 | * 1 if the filtering criteria is not met. | |
7225 | * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the | |
7226 | * given iocb is for the SCSI device specified by vport, tgt_id and | |
7227 | * lun_id parameter. | |
7228 | * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the | |
7229 | * given iocb is for the SCSI target specified by vport and tgt_id | |
7230 | * parameters. | |
7231 | * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the | |
7232 | * given iocb is for the SCSI host associated with the given vport. | |
7233 | * This function is called with no locks held. | |
7234 | **/ | |
dea3101e | 7235 | static int |
51ef4c26 JS |
7236 | lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport, |
7237 | uint16_t tgt_id, uint64_t lun_id, | |
0bd4ca25 | 7238 | lpfc_ctx_cmd ctx_cmd) |
dea3101e | 7239 | { |
0bd4ca25 | 7240 | struct lpfc_scsi_buf *lpfc_cmd; |
dea3101e | 7241 | int rc = 1; |
7242 | ||
0bd4ca25 JSEC |
7243 | if (!(iocbq->iocb_flag & LPFC_IO_FCP)) |
7244 | return rc; | |
7245 | ||
51ef4c26 JS |
7246 | if (iocbq->vport != vport) |
7247 | return rc; | |
7248 | ||
0bd4ca25 | 7249 | lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq); |
0bd4ca25 | 7250 | |
495a714c | 7251 | if (lpfc_cmd->pCmd == NULL) |
dea3101e | 7252 | return rc; |
7253 | ||
7254 | switch (ctx_cmd) { | |
7255 | case LPFC_CTX_LUN: | |
495a714c JS |
7256 | if ((lpfc_cmd->rdata->pnode) && |
7257 | (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) && | |
7258 | (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id)) | |
dea3101e | 7259 | rc = 0; |
7260 | break; | |
7261 | case LPFC_CTX_TGT: | |
495a714c JS |
7262 | if ((lpfc_cmd->rdata->pnode) && |
7263 | (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id)) | |
dea3101e | 7264 | rc = 0; |
7265 | break; | |
dea3101e | 7266 | case LPFC_CTX_HOST: |
7267 | rc = 0; | |
7268 | break; | |
7269 | default: | |
7270 | printk(KERN_ERR "%s: Unknown context cmd type, value %d\n", | |
cadbd4a5 | 7271 | __func__, ctx_cmd); |
dea3101e | 7272 | break; |
7273 | } | |
7274 | ||
7275 | return rc; | |
7276 | } | |
7277 | ||
e59058c4 | 7278 | /** |
3621a710 | 7279 | * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending |
e59058c4 JS |
7280 | * @vport: Pointer to virtual port. |
7281 | * @tgt_id: SCSI ID of the target. | |
7282 | * @lun_id: LUN ID of the scsi device. | |
7283 | * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST. | |
7284 | * | |
7285 | * This function returns number of FCP commands pending for the vport. | |
7286 | * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP | |
7287 | * commands pending on the vport associated with SCSI device specified | |
7288 | * by tgt_id and lun_id parameters. | |
7289 | * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP | |
7290 | * commands pending on the vport associated with SCSI target specified | |
7291 | * by tgt_id parameter. | |
7292 | * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP | |
7293 | * commands pending on the vport. | |
7294 | * This function returns the number of iocbs which satisfy the filter. | |
7295 | * This function is called without any lock held. | |
7296 | **/ | |
dea3101e | 7297 | int |
51ef4c26 JS |
7298 | lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id, |
7299 | lpfc_ctx_cmd ctx_cmd) | |
dea3101e | 7300 | { |
51ef4c26 | 7301 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 JSEC |
7302 | struct lpfc_iocbq *iocbq; |
7303 | int sum, i; | |
dea3101e | 7304 | |
0bd4ca25 JSEC |
7305 | for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) { |
7306 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 7307 | |
51ef4c26 JS |
7308 | if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id, |
7309 | ctx_cmd) == 0) | |
0bd4ca25 | 7310 | sum++; |
dea3101e | 7311 | } |
0bd4ca25 | 7312 | |
dea3101e | 7313 | return sum; |
7314 | } | |
7315 | ||
e59058c4 | 7316 | /** |
3621a710 | 7317 | * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs |
e59058c4 JS |
7318 | * @phba: Pointer to HBA context object |
7319 | * @cmdiocb: Pointer to command iocb object. | |
7320 | * @rspiocb: Pointer to response iocb object. | |
7321 | * | |
7322 | * This function is called when an aborted FCP iocb completes. This | |
7323 | * function is called by the ring event handler with no lock held. | |
7324 | * This function frees the iocb. | |
7325 | **/ | |
5eb95af0 | 7326 | void |
2e0fef85 JS |
7327 | lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
7328 | struct lpfc_iocbq *rspiocb) | |
5eb95af0 | 7329 | { |
604a3e30 | 7330 | lpfc_sli_release_iocbq(phba, cmdiocb); |
5eb95af0 JSEC |
7331 | return; |
7332 | } | |
7333 | ||
e59058c4 | 7334 | /** |
3621a710 | 7335 | * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN |
e59058c4 JS |
7336 | * @vport: Pointer to virtual port. |
7337 | * @pring: Pointer to driver SLI ring object. | |
7338 | * @tgt_id: SCSI ID of the target. | |
7339 | * @lun_id: LUN ID of the scsi device. | |
7340 | * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST. | |
7341 | * | |
7342 | * This function sends an abort command for every SCSI command | |
7343 | * associated with the given virtual port pending on the ring | |
7344 | * filtered by lpfc_sli_validate_fcp_iocb function. | |
7345 | * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the | |
7346 | * FCP iocbs associated with lun specified by tgt_id and lun_id | |
7347 | * parameters | |
7348 | * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the | |
7349 | * FCP iocbs associated with SCSI target specified by tgt_id parameter. | |
7350 | * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all | |
7351 | * FCP iocbs associated with virtual port. | |
7352 | * This function returns number of iocbs it failed to abort. | |
7353 | * This function is called with no locks held. | |
7354 | **/ | |
dea3101e | 7355 | int |
51ef4c26 JS |
7356 | lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring, |
7357 | uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd) | |
dea3101e | 7358 | { |
51ef4c26 | 7359 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 JSEC |
7360 | struct lpfc_iocbq *iocbq; |
7361 | struct lpfc_iocbq *abtsiocb; | |
dea3101e | 7362 | IOCB_t *cmd = NULL; |
dea3101e | 7363 | int errcnt = 0, ret_val = 0; |
0bd4ca25 | 7364 | int i; |
dea3101e | 7365 | |
0bd4ca25 JSEC |
7366 | for (i = 1; i <= phba->sli.last_iotag; i++) { |
7367 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 7368 | |
51ef4c26 | 7369 | if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id, |
2e0fef85 | 7370 | abort_cmd) != 0) |
dea3101e | 7371 | continue; |
7372 | ||
7373 | /* issue ABTS for this IOCB based on iotag */ | |
0bd4ca25 | 7374 | abtsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e | 7375 | if (abtsiocb == NULL) { |
7376 | errcnt++; | |
7377 | continue; | |
7378 | } | |
dea3101e | 7379 | |
0bd4ca25 | 7380 | cmd = &iocbq->iocb; |
dea3101e | 7381 | abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS; |
7382 | abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext; | |
da0436e9 JS |
7383 | if (phba->sli_rev == LPFC_SLI_REV4) |
7384 | abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag; | |
7385 | else | |
7386 | abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag; | |
dea3101e | 7387 | abtsiocb->iocb.ulpLe = 1; |
7388 | abtsiocb->iocb.ulpClass = cmd->ulpClass; | |
2e0fef85 | 7389 | abtsiocb->vport = phba->pport; |
dea3101e | 7390 | |
5ffc266e JS |
7391 | /* ABTS WQE must go to the same WQ as the WQE to be aborted */ |
7392 | abtsiocb->fcp_wqidx = iocbq->fcp_wqidx; | |
341af102 JS |
7393 | if (iocbq->iocb_flag & LPFC_IO_FCP) |
7394 | abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX; | |
5ffc266e | 7395 | |
2e0fef85 | 7396 | if (lpfc_is_link_up(phba)) |
dea3101e | 7397 | abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN; |
7398 | else | |
7399 | abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN; | |
7400 | ||
5eb95af0 JSEC |
7401 | /* Setup callback routine and issue the command. */ |
7402 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; | |
da0436e9 JS |
7403 | ret_val = lpfc_sli_issue_iocb(phba, pring->ringno, |
7404 | abtsiocb, 0); | |
dea3101e | 7405 | if (ret_val == IOCB_ERROR) { |
604a3e30 | 7406 | lpfc_sli_release_iocbq(phba, abtsiocb); |
dea3101e | 7407 | errcnt++; |
7408 | continue; | |
7409 | } | |
7410 | } | |
7411 | ||
7412 | return errcnt; | |
7413 | } | |
7414 | ||
e59058c4 | 7415 | /** |
3621a710 | 7416 | * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler |
e59058c4 JS |
7417 | * @phba: Pointer to HBA context object. |
7418 | * @cmdiocbq: Pointer to command iocb. | |
7419 | * @rspiocbq: Pointer to response iocb. | |
7420 | * | |
7421 | * This function is the completion handler for iocbs issued using | |
7422 | * lpfc_sli_issue_iocb_wait function. This function is called by the | |
7423 | * ring event handler function without any lock held. This function | |
7424 | * can be called from both worker thread context and interrupt | |
7425 | * context. This function also can be called from other thread which | |
7426 | * cleans up the SLI layer objects. | |
7427 | * This function copy the contents of the response iocb to the | |
7428 | * response iocb memory object provided by the caller of | |
7429 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
7430 | * sleeps for the iocb completion. | |
7431 | **/ | |
68876920 JSEC |
7432 | static void |
7433 | lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba, | |
7434 | struct lpfc_iocbq *cmdiocbq, | |
7435 | struct lpfc_iocbq *rspiocbq) | |
dea3101e | 7436 | { |
68876920 JSEC |
7437 | wait_queue_head_t *pdone_q; |
7438 | unsigned long iflags; | |
dea3101e | 7439 | |
2e0fef85 | 7440 | spin_lock_irqsave(&phba->hbalock, iflags); |
68876920 JSEC |
7441 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; |
7442 | if (cmdiocbq->context2 && rspiocbq) | |
7443 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
7444 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
7445 | ||
7446 | pdone_q = cmdiocbq->context_un.wait_queue; | |
68876920 JSEC |
7447 | if (pdone_q) |
7448 | wake_up(pdone_q); | |
858c9f6c | 7449 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
dea3101e | 7450 | return; |
7451 | } | |
7452 | ||
d11e31dd JS |
7453 | /** |
7454 | * lpfc_chk_iocb_flg - Test IOCB flag with lock held. | |
7455 | * @phba: Pointer to HBA context object.. | |
7456 | * @piocbq: Pointer to command iocb. | |
7457 | * @flag: Flag to test. | |
7458 | * | |
7459 | * This routine grabs the hbalock and then test the iocb_flag to | |
7460 | * see if the passed in flag is set. | |
7461 | * Returns: | |
7462 | * 1 if flag is set. | |
7463 | * 0 if flag is not set. | |
7464 | **/ | |
7465 | static int | |
7466 | lpfc_chk_iocb_flg(struct lpfc_hba *phba, | |
7467 | struct lpfc_iocbq *piocbq, uint32_t flag) | |
7468 | { | |
7469 | unsigned long iflags; | |
7470 | int ret; | |
7471 | ||
7472 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7473 | ret = piocbq->iocb_flag & flag; | |
7474 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
7475 | return ret; | |
7476 | ||
7477 | } | |
7478 | ||
e59058c4 | 7479 | /** |
3621a710 | 7480 | * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands |
e59058c4 JS |
7481 | * @phba: Pointer to HBA context object.. |
7482 | * @pring: Pointer to sli ring. | |
7483 | * @piocb: Pointer to command iocb. | |
7484 | * @prspiocbq: Pointer to response iocb. | |
7485 | * @timeout: Timeout in number of seconds. | |
7486 | * | |
7487 | * This function issues the iocb to firmware and waits for the | |
7488 | * iocb to complete. If the iocb command is not | |
7489 | * completed within timeout seconds, it returns IOCB_TIMEDOUT. | |
7490 | * Caller should not free the iocb resources if this function | |
7491 | * returns IOCB_TIMEDOUT. | |
7492 | * The function waits for the iocb completion using an | |
7493 | * non-interruptible wait. | |
7494 | * This function will sleep while waiting for iocb completion. | |
7495 | * So, this function should not be called from any context which | |
7496 | * does not allow sleeping. Due to the same reason, this function | |
7497 | * cannot be called with interrupt disabled. | |
7498 | * This function assumes that the iocb completions occur while | |
7499 | * this function sleep. So, this function cannot be called from | |
7500 | * the thread which process iocb completion for this ring. | |
7501 | * This function clears the iocb_flag of the iocb object before | |
7502 | * issuing the iocb and the iocb completion handler sets this | |
7503 | * flag and wakes this thread when the iocb completes. | |
7504 | * The contents of the response iocb will be copied to prspiocbq | |
7505 | * by the completion handler when the command completes. | |
7506 | * This function returns IOCB_SUCCESS when success. | |
7507 | * This function is called with no lock held. | |
7508 | **/ | |
dea3101e | 7509 | int |
2e0fef85 | 7510 | lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba, |
da0436e9 | 7511 | uint32_t ring_number, |
2e0fef85 JS |
7512 | struct lpfc_iocbq *piocb, |
7513 | struct lpfc_iocbq *prspiocbq, | |
68876920 | 7514 | uint32_t timeout) |
dea3101e | 7515 | { |
7259f0d0 | 7516 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); |
68876920 JSEC |
7517 | long timeleft, timeout_req = 0; |
7518 | int retval = IOCB_SUCCESS; | |
875fbdfe | 7519 | uint32_t creg_val; |
dea3101e | 7520 | |
7521 | /* | |
68876920 JSEC |
7522 | * If the caller has provided a response iocbq buffer, then context2 |
7523 | * is NULL or its an error. | |
dea3101e | 7524 | */ |
68876920 JSEC |
7525 | if (prspiocbq) { |
7526 | if (piocb->context2) | |
7527 | return IOCB_ERROR; | |
7528 | piocb->context2 = prspiocbq; | |
dea3101e | 7529 | } |
7530 | ||
68876920 JSEC |
7531 | piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait; |
7532 | piocb->context_un.wait_queue = &done_q; | |
7533 | piocb->iocb_flag &= ~LPFC_IO_WAKE; | |
dea3101e | 7534 | |
875fbdfe JSEC |
7535 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
7536 | creg_val = readl(phba->HCregaddr); | |
7537 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); | |
7538 | writel(creg_val, phba->HCregaddr); | |
7539 | readl(phba->HCregaddr); /* flush */ | |
7540 | } | |
7541 | ||
da0436e9 | 7542 | retval = lpfc_sli_issue_iocb(phba, ring_number, piocb, 0); |
68876920 JSEC |
7543 | if (retval == IOCB_SUCCESS) { |
7544 | timeout_req = timeout * HZ; | |
68876920 | 7545 | timeleft = wait_event_timeout(done_q, |
d11e31dd | 7546 | lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE), |
68876920 | 7547 | timeout_req); |
dea3101e | 7548 | |
7054a606 JS |
7549 | if (piocb->iocb_flag & LPFC_IO_WAKE) { |
7550 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 7551 | "0331 IOCB wake signaled\n"); |
7054a606 | 7552 | } else if (timeleft == 0) { |
68876920 | 7553 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 JS |
7554 | "0338 IOCB wait timeout error - no " |
7555 | "wake response Data x%x\n", timeout); | |
68876920 | 7556 | retval = IOCB_TIMEDOUT; |
7054a606 | 7557 | } else { |
68876920 | 7558 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 JS |
7559 | "0330 IOCB wake NOT set, " |
7560 | "Data x%x x%lx\n", | |
68876920 JSEC |
7561 | timeout, (timeleft / jiffies)); |
7562 | retval = IOCB_TIMEDOUT; | |
dea3101e | 7563 | } |
68876920 JSEC |
7564 | } else { |
7565 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
d7c255b2 | 7566 | "0332 IOCB wait issue failed, Data x%x\n", |
e8b62011 | 7567 | retval); |
68876920 | 7568 | retval = IOCB_ERROR; |
dea3101e | 7569 | } |
7570 | ||
875fbdfe JSEC |
7571 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
7572 | creg_val = readl(phba->HCregaddr); | |
7573 | creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); | |
7574 | writel(creg_val, phba->HCregaddr); | |
7575 | readl(phba->HCregaddr); /* flush */ | |
7576 | } | |
7577 | ||
68876920 JSEC |
7578 | if (prspiocbq) |
7579 | piocb->context2 = NULL; | |
7580 | ||
7581 | piocb->context_un.wait_queue = NULL; | |
7582 | piocb->iocb_cmpl = NULL; | |
dea3101e | 7583 | return retval; |
7584 | } | |
68876920 | 7585 | |
e59058c4 | 7586 | /** |
3621a710 | 7587 | * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox |
e59058c4 JS |
7588 | * @phba: Pointer to HBA context object. |
7589 | * @pmboxq: Pointer to driver mailbox object. | |
7590 | * @timeout: Timeout in number of seconds. | |
7591 | * | |
7592 | * This function issues the mailbox to firmware and waits for the | |
7593 | * mailbox command to complete. If the mailbox command is not | |
7594 | * completed within timeout seconds, it returns MBX_TIMEOUT. | |
7595 | * The function waits for the mailbox completion using an | |
7596 | * interruptible wait. If the thread is woken up due to a | |
7597 | * signal, MBX_TIMEOUT error is returned to the caller. Caller | |
7598 | * should not free the mailbox resources, if this function returns | |
7599 | * MBX_TIMEOUT. | |
7600 | * This function will sleep while waiting for mailbox completion. | |
7601 | * So, this function should not be called from any context which | |
7602 | * does not allow sleeping. Due to the same reason, this function | |
7603 | * cannot be called with interrupt disabled. | |
7604 | * This function assumes that the mailbox completion occurs while | |
7605 | * this function sleep. So, this function cannot be called from | |
7606 | * the worker thread which processes mailbox completion. | |
7607 | * This function is called in the context of HBA management | |
7608 | * applications. | |
7609 | * This function returns MBX_SUCCESS when successful. | |
7610 | * This function is called with no lock held. | |
7611 | **/ | |
dea3101e | 7612 | int |
2e0fef85 | 7613 | lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq, |
dea3101e | 7614 | uint32_t timeout) |
7615 | { | |
7259f0d0 | 7616 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); |
dea3101e | 7617 | int retval; |
858c9f6c | 7618 | unsigned long flag; |
dea3101e | 7619 | |
7620 | /* The caller must leave context1 empty. */ | |
98c9ea5c | 7621 | if (pmboxq->context1) |
2e0fef85 | 7622 | return MBX_NOT_FINISHED; |
dea3101e | 7623 | |
495a714c | 7624 | pmboxq->mbox_flag &= ~LPFC_MBX_WAKE; |
dea3101e | 7625 | /* setup wake call as IOCB callback */ |
7626 | pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait; | |
7627 | /* setup context field to pass wait_queue pointer to wake function */ | |
7628 | pmboxq->context1 = &done_q; | |
7629 | ||
dea3101e | 7630 | /* now issue the command */ |
7631 | retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); | |
7632 | ||
7633 | if (retval == MBX_BUSY || retval == MBX_SUCCESS) { | |
7054a606 JS |
7634 | wait_event_interruptible_timeout(done_q, |
7635 | pmboxq->mbox_flag & LPFC_MBX_WAKE, | |
7636 | timeout * HZ); | |
7637 | ||
858c9f6c | 7638 | spin_lock_irqsave(&phba->hbalock, flag); |
dea3101e | 7639 | pmboxq->context1 = NULL; |
7054a606 JS |
7640 | /* |
7641 | * if LPFC_MBX_WAKE flag is set the mailbox is completed | |
7642 | * else do not free the resources. | |
7643 | */ | |
7644 | if (pmboxq->mbox_flag & LPFC_MBX_WAKE) | |
dea3101e | 7645 | retval = MBX_SUCCESS; |
858c9f6c | 7646 | else { |
7054a606 | 7647 | retval = MBX_TIMEOUT; |
858c9f6c JS |
7648 | pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
7649 | } | |
7650 | spin_unlock_irqrestore(&phba->hbalock, flag); | |
dea3101e | 7651 | } |
7652 | ||
dea3101e | 7653 | return retval; |
7654 | } | |
7655 | ||
e59058c4 | 7656 | /** |
3772a991 | 7657 | * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system |
e59058c4 JS |
7658 | * @phba: Pointer to HBA context. |
7659 | * | |
3772a991 JS |
7660 | * This function is called to shutdown the driver's mailbox sub-system. |
7661 | * It first marks the mailbox sub-system is in a block state to prevent | |
7662 | * the asynchronous mailbox command from issued off the pending mailbox | |
7663 | * command queue. If the mailbox command sub-system shutdown is due to | |
7664 | * HBA error conditions such as EEH or ERATT, this routine shall invoke | |
7665 | * the mailbox sub-system flush routine to forcefully bring down the | |
7666 | * mailbox sub-system. Otherwise, if it is due to normal condition (such | |
7667 | * as with offline or HBA function reset), this routine will wait for the | |
7668 | * outstanding mailbox command to complete before invoking the mailbox | |
7669 | * sub-system flush routine to gracefully bring down mailbox sub-system. | |
e59058c4 | 7670 | **/ |
3772a991 JS |
7671 | void |
7672 | lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba) | |
b4c02652 | 7673 | { |
3772a991 JS |
7674 | struct lpfc_sli *psli = &phba->sli; |
7675 | uint8_t actcmd = MBX_HEARTBEAT; | |
7676 | unsigned long timeout; | |
b4c02652 | 7677 | |
3772a991 JS |
7678 | spin_lock_irq(&phba->hbalock); |
7679 | psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; | |
7680 | spin_unlock_irq(&phba->hbalock); | |
b4c02652 | 7681 | |
3772a991 | 7682 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { |
ed957684 | 7683 | spin_lock_irq(&phba->hbalock); |
3772a991 JS |
7684 | if (phba->sli.mbox_active) |
7685 | actcmd = phba->sli.mbox_active->u.mb.mbxCommand; | |
ed957684 | 7686 | spin_unlock_irq(&phba->hbalock); |
3772a991 JS |
7687 | /* Determine how long we might wait for the active mailbox |
7688 | * command to be gracefully completed by firmware. | |
7689 | */ | |
7690 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * | |
7691 | 1000) + jiffies; | |
7692 | while (phba->sli.mbox_active) { | |
7693 | /* Check active mailbox complete status every 2ms */ | |
7694 | msleep(2); | |
7695 | if (time_after(jiffies, timeout)) | |
7696 | /* Timeout, let the mailbox flush routine to | |
7697 | * forcefully release active mailbox command | |
7698 | */ | |
7699 | break; | |
7700 | } | |
7701 | } | |
7702 | lpfc_sli_mbox_sys_flush(phba); | |
7703 | } | |
ed957684 | 7704 | |
3772a991 JS |
7705 | /** |
7706 | * lpfc_sli_eratt_read - read sli-3 error attention events | |
7707 | * @phba: Pointer to HBA context. | |
7708 | * | |
7709 | * This function is called to read the SLI3 device error attention registers | |
7710 | * for possible error attention events. The caller must hold the hostlock | |
7711 | * with spin_lock_irq(). | |
7712 | * | |
7713 | * This fucntion returns 1 when there is Error Attention in the Host Attention | |
7714 | * Register and returns 0 otherwise. | |
7715 | **/ | |
7716 | static int | |
7717 | lpfc_sli_eratt_read(struct lpfc_hba *phba) | |
7718 | { | |
7719 | uint32_t ha_copy; | |
b4c02652 | 7720 | |
3772a991 JS |
7721 | /* Read chip Host Attention (HA) register */ |
7722 | ha_copy = readl(phba->HAregaddr); | |
7723 | if (ha_copy & HA_ERATT) { | |
7724 | /* Read host status register to retrieve error event */ | |
7725 | lpfc_sli_read_hs(phba); | |
b4c02652 | 7726 | |
3772a991 JS |
7727 | /* Check if there is a deferred error condition is active */ |
7728 | if ((HS_FFER1 & phba->work_hs) && | |
7729 | ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 | | |
7730 | HS_FFER6 | HS_FFER7) & phba->work_hs)) { | |
3772a991 | 7731 | phba->hba_flag |= DEFER_ERATT; |
3772a991 JS |
7732 | /* Clear all interrupt enable conditions */ |
7733 | writel(0, phba->HCregaddr); | |
7734 | readl(phba->HCregaddr); | |
7735 | } | |
7736 | ||
7737 | /* Set the driver HA work bitmap */ | |
3772a991 JS |
7738 | phba->work_ha |= HA_ERATT; |
7739 | /* Indicate polling handles this ERATT */ | |
7740 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
3772a991 JS |
7741 | return 1; |
7742 | } | |
7743 | return 0; | |
b4c02652 JS |
7744 | } |
7745 | ||
da0436e9 JS |
7746 | /** |
7747 | * lpfc_sli4_eratt_read - read sli-4 error attention events | |
7748 | * @phba: Pointer to HBA context. | |
7749 | * | |
7750 | * This function is called to read the SLI4 device error attention registers | |
7751 | * for possible error attention events. The caller must hold the hostlock | |
7752 | * with spin_lock_irq(). | |
7753 | * | |
7754 | * This fucntion returns 1 when there is Error Attention in the Host Attention | |
7755 | * Register and returns 0 otherwise. | |
7756 | **/ | |
7757 | static int | |
7758 | lpfc_sli4_eratt_read(struct lpfc_hba *phba) | |
7759 | { | |
7760 | uint32_t uerr_sta_hi, uerr_sta_lo; | |
da0436e9 JS |
7761 | |
7762 | /* For now, use the SLI4 device internal unrecoverable error | |
7763 | * registers for error attention. This can be changed later. | |
7764 | */ | |
a747c9ce JS |
7765 | uerr_sta_lo = readl(phba->sli4_hba.UERRLOregaddr); |
7766 | uerr_sta_hi = readl(phba->sli4_hba.UERRHIregaddr); | |
7767 | if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) || | |
7768 | (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) { | |
7769 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7770 | "1423 HBA Unrecoverable error: " | |
7771 | "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, " | |
7772 | "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n", | |
7773 | uerr_sta_lo, uerr_sta_hi, | |
7774 | phba->sli4_hba.ue_mask_lo, | |
7775 | phba->sli4_hba.ue_mask_hi); | |
7776 | phba->work_status[0] = uerr_sta_lo; | |
7777 | phba->work_status[1] = uerr_sta_hi; | |
7778 | /* Set the driver HA work bitmap */ | |
7779 | phba->work_ha |= HA_ERATT; | |
7780 | /* Indicate polling handles this ERATT */ | |
7781 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
7782 | return 1; | |
da0436e9 JS |
7783 | } |
7784 | return 0; | |
7785 | } | |
7786 | ||
e59058c4 | 7787 | /** |
3621a710 | 7788 | * lpfc_sli_check_eratt - check error attention events |
9399627f JS |
7789 | * @phba: Pointer to HBA context. |
7790 | * | |
3772a991 | 7791 | * This function is called from timer soft interrupt context to check HBA's |
9399627f JS |
7792 | * error attention register bit for error attention events. |
7793 | * | |
7794 | * This fucntion returns 1 when there is Error Attention in the Host Attention | |
7795 | * Register and returns 0 otherwise. | |
7796 | **/ | |
7797 | int | |
7798 | lpfc_sli_check_eratt(struct lpfc_hba *phba) | |
7799 | { | |
7800 | uint32_t ha_copy; | |
7801 | ||
7802 | /* If somebody is waiting to handle an eratt, don't process it | |
7803 | * here. The brdkill function will do this. | |
7804 | */ | |
7805 | if (phba->link_flag & LS_IGNORE_ERATT) | |
7806 | return 0; | |
7807 | ||
7808 | /* Check if interrupt handler handles this ERATT */ | |
7809 | spin_lock_irq(&phba->hbalock); | |
7810 | if (phba->hba_flag & HBA_ERATT_HANDLED) { | |
7811 | /* Interrupt handler has handled ERATT */ | |
7812 | spin_unlock_irq(&phba->hbalock); | |
7813 | return 0; | |
7814 | } | |
7815 | ||
a257bf90 JS |
7816 | /* |
7817 | * If there is deferred error attention, do not check for error | |
7818 | * attention | |
7819 | */ | |
7820 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
7821 | spin_unlock_irq(&phba->hbalock); | |
7822 | return 0; | |
7823 | } | |
7824 | ||
3772a991 JS |
7825 | /* If PCI channel is offline, don't process it */ |
7826 | if (unlikely(pci_channel_offline(phba->pcidev))) { | |
9399627f | 7827 | spin_unlock_irq(&phba->hbalock); |
3772a991 JS |
7828 | return 0; |
7829 | } | |
7830 | ||
7831 | switch (phba->sli_rev) { | |
7832 | case LPFC_SLI_REV2: | |
7833 | case LPFC_SLI_REV3: | |
7834 | /* Read chip Host Attention (HA) register */ | |
7835 | ha_copy = lpfc_sli_eratt_read(phba); | |
7836 | break; | |
da0436e9 JS |
7837 | case LPFC_SLI_REV4: |
7838 | /* Read devcie Uncoverable Error (UERR) registers */ | |
7839 | ha_copy = lpfc_sli4_eratt_read(phba); | |
7840 | break; | |
3772a991 JS |
7841 | default: |
7842 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7843 | "0299 Invalid SLI revision (%d)\n", | |
7844 | phba->sli_rev); | |
7845 | ha_copy = 0; | |
7846 | break; | |
9399627f JS |
7847 | } |
7848 | spin_unlock_irq(&phba->hbalock); | |
3772a991 JS |
7849 | |
7850 | return ha_copy; | |
7851 | } | |
7852 | ||
7853 | /** | |
7854 | * lpfc_intr_state_check - Check device state for interrupt handling | |
7855 | * @phba: Pointer to HBA context. | |
7856 | * | |
7857 | * This inline routine checks whether a device or its PCI slot is in a state | |
7858 | * that the interrupt should be handled. | |
7859 | * | |
7860 | * This function returns 0 if the device or the PCI slot is in a state that | |
7861 | * interrupt should be handled, otherwise -EIO. | |
7862 | */ | |
7863 | static inline int | |
7864 | lpfc_intr_state_check(struct lpfc_hba *phba) | |
7865 | { | |
7866 | /* If the pci channel is offline, ignore all the interrupts */ | |
7867 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
7868 | return -EIO; | |
7869 | ||
7870 | /* Update device level interrupt statistics */ | |
7871 | phba->sli.slistat.sli_intr++; | |
7872 | ||
7873 | /* Ignore all interrupts during initialization. */ | |
7874 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) | |
7875 | return -EIO; | |
7876 | ||
9399627f JS |
7877 | return 0; |
7878 | } | |
7879 | ||
7880 | /** | |
3772a991 | 7881 | * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device |
e59058c4 JS |
7882 | * @irq: Interrupt number. |
7883 | * @dev_id: The device context pointer. | |
7884 | * | |
9399627f | 7885 | * This function is directly called from the PCI layer as an interrupt |
3772a991 JS |
7886 | * service routine when device with SLI-3 interface spec is enabled with |
7887 | * MSI-X multi-message interrupt mode and there are slow-path events in | |
7888 | * the HBA. However, when the device is enabled with either MSI or Pin-IRQ | |
7889 | * interrupt mode, this function is called as part of the device-level | |
7890 | * interrupt handler. When the PCI slot is in error recovery or the HBA | |
7891 | * is undergoing initialization, the interrupt handler will not process | |
7892 | * the interrupt. The link attention and ELS ring attention events are | |
7893 | * handled by the worker thread. The interrupt handler signals the worker | |
7894 | * thread and returns for these events. This function is called without | |
7895 | * any lock held. It gets the hbalock to access and update SLI data | |
9399627f JS |
7896 | * structures. |
7897 | * | |
7898 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
7899 | * returns IRQ_NONE. | |
e59058c4 | 7900 | **/ |
dea3101e | 7901 | irqreturn_t |
3772a991 | 7902 | lpfc_sli_sp_intr_handler(int irq, void *dev_id) |
dea3101e | 7903 | { |
2e0fef85 | 7904 | struct lpfc_hba *phba; |
a747c9ce | 7905 | uint32_t ha_copy, hc_copy; |
dea3101e | 7906 | uint32_t work_ha_copy; |
7907 | unsigned long status; | |
5b75da2f | 7908 | unsigned long iflag; |
dea3101e | 7909 | uint32_t control; |
7910 | ||
92d7f7b0 | 7911 | MAILBOX_t *mbox, *pmbox; |
858c9f6c JS |
7912 | struct lpfc_vport *vport; |
7913 | struct lpfc_nodelist *ndlp; | |
7914 | struct lpfc_dmabuf *mp; | |
92d7f7b0 JS |
7915 | LPFC_MBOXQ_t *pmb; |
7916 | int rc; | |
7917 | ||
dea3101e | 7918 | /* |
7919 | * Get the driver's phba structure from the dev_id and | |
7920 | * assume the HBA is not interrupting. | |
7921 | */ | |
9399627f | 7922 | phba = (struct lpfc_hba *)dev_id; |
dea3101e | 7923 | |
7924 | if (unlikely(!phba)) | |
7925 | return IRQ_NONE; | |
7926 | ||
dea3101e | 7927 | /* |
9399627f JS |
7928 | * Stuff needs to be attented to when this function is invoked as an |
7929 | * individual interrupt handler in MSI-X multi-message interrupt mode | |
dea3101e | 7930 | */ |
9399627f | 7931 | if (phba->intr_type == MSIX) { |
3772a991 JS |
7932 | /* Check device state for handling interrupt */ |
7933 | if (lpfc_intr_state_check(phba)) | |
9399627f JS |
7934 | return IRQ_NONE; |
7935 | /* Need to read HA REG for slow-path events */ | |
5b75da2f | 7936 | spin_lock_irqsave(&phba->hbalock, iflag); |
34b02dcd | 7937 | ha_copy = readl(phba->HAregaddr); |
9399627f JS |
7938 | /* If somebody is waiting to handle an eratt don't process it |
7939 | * here. The brdkill function will do this. | |
7940 | */ | |
7941 | if (phba->link_flag & LS_IGNORE_ERATT) | |
7942 | ha_copy &= ~HA_ERATT; | |
7943 | /* Check the need for handling ERATT in interrupt handler */ | |
7944 | if (ha_copy & HA_ERATT) { | |
7945 | if (phba->hba_flag & HBA_ERATT_HANDLED) | |
7946 | /* ERATT polling has handled ERATT */ | |
7947 | ha_copy &= ~HA_ERATT; | |
7948 | else | |
7949 | /* Indicate interrupt handler handles ERATT */ | |
7950 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
7951 | } | |
a257bf90 JS |
7952 | |
7953 | /* | |
7954 | * If there is deferred error attention, do not check for any | |
7955 | * interrupt. | |
7956 | */ | |
7957 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
3772a991 | 7958 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
a257bf90 JS |
7959 | return IRQ_NONE; |
7960 | } | |
7961 | ||
9399627f | 7962 | /* Clear up only attention source related to slow-path */ |
a747c9ce JS |
7963 | hc_copy = readl(phba->HCregaddr); |
7964 | writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA | | |
7965 | HC_LAINT_ENA | HC_ERINT_ENA), | |
7966 | phba->HCregaddr); | |
9399627f JS |
7967 | writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)), |
7968 | phba->HAregaddr); | |
a747c9ce | 7969 | writel(hc_copy, phba->HCregaddr); |
9399627f | 7970 | readl(phba->HAregaddr); /* flush */ |
5b75da2f | 7971 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
9399627f JS |
7972 | } else |
7973 | ha_copy = phba->ha_copy; | |
dea3101e | 7974 | |
dea3101e | 7975 | work_ha_copy = ha_copy & phba->work_ha_mask; |
7976 | ||
9399627f | 7977 | if (work_ha_copy) { |
dea3101e | 7978 | if (work_ha_copy & HA_LATT) { |
7979 | if (phba->sli.sli_flag & LPFC_PROCESS_LA) { | |
7980 | /* | |
7981 | * Turn off Link Attention interrupts | |
7982 | * until CLEAR_LA done | |
7983 | */ | |
5b75da2f | 7984 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 7985 | phba->sli.sli_flag &= ~LPFC_PROCESS_LA; |
7986 | control = readl(phba->HCregaddr); | |
7987 | control &= ~HC_LAINT_ENA; | |
7988 | writel(control, phba->HCregaddr); | |
7989 | readl(phba->HCregaddr); /* flush */ | |
5b75da2f | 7990 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 7991 | } |
7992 | else | |
7993 | work_ha_copy &= ~HA_LATT; | |
7994 | } | |
7995 | ||
9399627f | 7996 | if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) { |
858c9f6c JS |
7997 | /* |
7998 | * Turn off Slow Rings interrupts, LPFC_ELS_RING is | |
7999 | * the only slow ring. | |
8000 | */ | |
8001 | status = (work_ha_copy & | |
8002 | (HA_RXMASK << (4*LPFC_ELS_RING))); | |
8003 | status >>= (4*LPFC_ELS_RING); | |
8004 | if (status & HA_RXMASK) { | |
5b75da2f | 8005 | spin_lock_irqsave(&phba->hbalock, iflag); |
858c9f6c | 8006 | control = readl(phba->HCregaddr); |
a58cbd52 JS |
8007 | |
8008 | lpfc_debugfs_slow_ring_trc(phba, | |
8009 | "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x", | |
8010 | control, status, | |
8011 | (uint32_t)phba->sli.slistat.sli_intr); | |
8012 | ||
858c9f6c | 8013 | if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) { |
a58cbd52 JS |
8014 | lpfc_debugfs_slow_ring_trc(phba, |
8015 | "ISR Disable ring:" | |
8016 | "pwork:x%x hawork:x%x wait:x%x", | |
8017 | phba->work_ha, work_ha_copy, | |
8018 | (uint32_t)((unsigned long) | |
5e9d9b82 | 8019 | &phba->work_waitq)); |
a58cbd52 | 8020 | |
858c9f6c JS |
8021 | control &= |
8022 | ~(HC_R0INT_ENA << LPFC_ELS_RING); | |
dea3101e | 8023 | writel(control, phba->HCregaddr); |
8024 | readl(phba->HCregaddr); /* flush */ | |
dea3101e | 8025 | } |
a58cbd52 JS |
8026 | else { |
8027 | lpfc_debugfs_slow_ring_trc(phba, | |
8028 | "ISR slow ring: pwork:" | |
8029 | "x%x hawork:x%x wait:x%x", | |
8030 | phba->work_ha, work_ha_copy, | |
8031 | (uint32_t)((unsigned long) | |
5e9d9b82 | 8032 | &phba->work_waitq)); |
a58cbd52 | 8033 | } |
5b75da2f | 8034 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 8035 | } |
8036 | } | |
5b75da2f | 8037 | spin_lock_irqsave(&phba->hbalock, iflag); |
a257bf90 | 8038 | if (work_ha_copy & HA_ERATT) { |
9399627f | 8039 | lpfc_sli_read_hs(phba); |
a257bf90 JS |
8040 | /* |
8041 | * Check if there is a deferred error condition | |
8042 | * is active | |
8043 | */ | |
8044 | if ((HS_FFER1 & phba->work_hs) && | |
8045 | ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 | | |
8046 | HS_FFER6 | HS_FFER7) & phba->work_hs)) { | |
8047 | phba->hba_flag |= DEFER_ERATT; | |
8048 | /* Clear all interrupt enable conditions */ | |
8049 | writel(0, phba->HCregaddr); | |
8050 | readl(phba->HCregaddr); | |
8051 | } | |
8052 | } | |
8053 | ||
9399627f | 8054 | if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) { |
92d7f7b0 | 8055 | pmb = phba->sli.mbox_active; |
04c68496 | 8056 | pmbox = &pmb->u.mb; |
34b02dcd | 8057 | mbox = phba->mbox; |
858c9f6c | 8058 | vport = pmb->vport; |
92d7f7b0 JS |
8059 | |
8060 | /* First check out the status word */ | |
8061 | lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t)); | |
8062 | if (pmbox->mbxOwner != OWN_HOST) { | |
5b75da2f | 8063 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
92d7f7b0 JS |
8064 | /* |
8065 | * Stray Mailbox Interrupt, mbxCommand <cmd> | |
8066 | * mbxStatus <status> | |
8067 | */ | |
09372820 | 8068 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | |
92d7f7b0 | 8069 | LOG_SLI, |
e8b62011 | 8070 | "(%d):0304 Stray Mailbox " |
92d7f7b0 JS |
8071 | "Interrupt mbxCommand x%x " |
8072 | "mbxStatus x%x\n", | |
e8b62011 | 8073 | (vport ? vport->vpi : 0), |
92d7f7b0 JS |
8074 | pmbox->mbxCommand, |
8075 | pmbox->mbxStatus); | |
09372820 JS |
8076 | /* clear mailbox attention bit */ |
8077 | work_ha_copy &= ~HA_MBATT; | |
8078 | } else { | |
97eab634 | 8079 | phba->sli.mbox_active = NULL; |
5b75da2f | 8080 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
09372820 JS |
8081 | phba->last_completion_time = jiffies; |
8082 | del_timer(&phba->sli.mbox_tmo); | |
09372820 JS |
8083 | if (pmb->mbox_cmpl) { |
8084 | lpfc_sli_pcimem_bcopy(mbox, pmbox, | |
8085 | MAILBOX_CMD_SIZE); | |
8086 | } | |
8087 | if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) { | |
8088 | pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG; | |
8089 | ||
8090 | lpfc_debugfs_disc_trc(vport, | |
8091 | LPFC_DISC_TRC_MBOX_VPORT, | |
8092 | "MBOX dflt rpi: : " | |
8093 | "status:x%x rpi:x%x", | |
8094 | (uint32_t)pmbox->mbxStatus, | |
8095 | pmbox->un.varWords[0], 0); | |
8096 | ||
8097 | if (!pmbox->mbxStatus) { | |
8098 | mp = (struct lpfc_dmabuf *) | |
8099 | (pmb->context1); | |
8100 | ndlp = (struct lpfc_nodelist *) | |
8101 | pmb->context2; | |
8102 | ||
8103 | /* Reg_LOGIN of dflt RPI was | |
8104 | * successful. new lets get | |
8105 | * rid of the RPI using the | |
8106 | * same mbox buffer. | |
8107 | */ | |
8108 | lpfc_unreg_login(phba, | |
8109 | vport->vpi, | |
8110 | pmbox->un.varWords[0], | |
8111 | pmb); | |
8112 | pmb->mbox_cmpl = | |
8113 | lpfc_mbx_cmpl_dflt_rpi; | |
8114 | pmb->context1 = mp; | |
8115 | pmb->context2 = ndlp; | |
8116 | pmb->vport = vport; | |
58da1ffb JS |
8117 | rc = lpfc_sli_issue_mbox(phba, |
8118 | pmb, | |
8119 | MBX_NOWAIT); | |
8120 | if (rc != MBX_BUSY) | |
8121 | lpfc_printf_log(phba, | |
8122 | KERN_ERR, | |
8123 | LOG_MBOX | LOG_SLI, | |
d7c255b2 | 8124 | "0350 rc should have" |
6a9c52cf | 8125 | "been MBX_BUSY\n"); |
3772a991 JS |
8126 | if (rc != MBX_NOT_FINISHED) |
8127 | goto send_current_mbox; | |
09372820 | 8128 | } |
858c9f6c | 8129 | } |
5b75da2f JS |
8130 | spin_lock_irqsave( |
8131 | &phba->pport->work_port_lock, | |
8132 | iflag); | |
09372820 JS |
8133 | phba->pport->work_port_events &= |
8134 | ~WORKER_MBOX_TMO; | |
5b75da2f JS |
8135 | spin_unlock_irqrestore( |
8136 | &phba->pport->work_port_lock, | |
8137 | iflag); | |
09372820 | 8138 | lpfc_mbox_cmpl_put(phba, pmb); |
858c9f6c | 8139 | } |
97eab634 | 8140 | } else |
5b75da2f | 8141 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
9399627f | 8142 | |
92d7f7b0 JS |
8143 | if ((work_ha_copy & HA_MBATT) && |
8144 | (phba->sli.mbox_active == NULL)) { | |
858c9f6c | 8145 | send_current_mbox: |
92d7f7b0 | 8146 | /* Process next mailbox command if there is one */ |
58da1ffb JS |
8147 | do { |
8148 | rc = lpfc_sli_issue_mbox(phba, NULL, | |
8149 | MBX_NOWAIT); | |
8150 | } while (rc == MBX_NOT_FINISHED); | |
8151 | if (rc != MBX_SUCCESS) | |
8152 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | | |
8153 | LOG_SLI, "0349 rc should be " | |
6a9c52cf | 8154 | "MBX_SUCCESS\n"); |
92d7f7b0 JS |
8155 | } |
8156 | ||
5b75da2f | 8157 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 8158 | phba->work_ha |= work_ha_copy; |
5b75da2f | 8159 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
5e9d9b82 | 8160 | lpfc_worker_wake_up(phba); |
dea3101e | 8161 | } |
9399627f | 8162 | return IRQ_HANDLED; |
dea3101e | 8163 | |
3772a991 | 8164 | } /* lpfc_sli_sp_intr_handler */ |
9399627f JS |
8165 | |
8166 | /** | |
3772a991 | 8167 | * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device. |
9399627f JS |
8168 | * @irq: Interrupt number. |
8169 | * @dev_id: The device context pointer. | |
8170 | * | |
8171 | * This function is directly called from the PCI layer as an interrupt | |
3772a991 JS |
8172 | * service routine when device with SLI-3 interface spec is enabled with |
8173 | * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB | |
8174 | * ring event in the HBA. However, when the device is enabled with either | |
8175 | * MSI or Pin-IRQ interrupt mode, this function is called as part of the | |
8176 | * device-level interrupt handler. When the PCI slot is in error recovery | |
8177 | * or the HBA is undergoing initialization, the interrupt handler will not | |
8178 | * process the interrupt. The SCSI FCP fast-path ring event are handled in | |
8179 | * the intrrupt context. This function is called without any lock held. | |
8180 | * It gets the hbalock to access and update SLI data structures. | |
9399627f JS |
8181 | * |
8182 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
8183 | * returns IRQ_NONE. | |
8184 | **/ | |
8185 | irqreturn_t | |
3772a991 | 8186 | lpfc_sli_fp_intr_handler(int irq, void *dev_id) |
9399627f JS |
8187 | { |
8188 | struct lpfc_hba *phba; | |
8189 | uint32_t ha_copy; | |
8190 | unsigned long status; | |
5b75da2f | 8191 | unsigned long iflag; |
9399627f JS |
8192 | |
8193 | /* Get the driver's phba structure from the dev_id and | |
8194 | * assume the HBA is not interrupting. | |
8195 | */ | |
8196 | phba = (struct lpfc_hba *) dev_id; | |
8197 | ||
8198 | if (unlikely(!phba)) | |
8199 | return IRQ_NONE; | |
8200 | ||
8201 | /* | |
8202 | * Stuff needs to be attented to when this function is invoked as an | |
8203 | * individual interrupt handler in MSI-X multi-message interrupt mode | |
8204 | */ | |
8205 | if (phba->intr_type == MSIX) { | |
3772a991 JS |
8206 | /* Check device state for handling interrupt */ |
8207 | if (lpfc_intr_state_check(phba)) | |
9399627f JS |
8208 | return IRQ_NONE; |
8209 | /* Need to read HA REG for FCP ring and other ring events */ | |
8210 | ha_copy = readl(phba->HAregaddr); | |
8211 | /* Clear up only attention source related to fast-path */ | |
5b75da2f | 8212 | spin_lock_irqsave(&phba->hbalock, iflag); |
a257bf90 JS |
8213 | /* |
8214 | * If there is deferred error attention, do not check for | |
8215 | * any interrupt. | |
8216 | */ | |
8217 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
3772a991 | 8218 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
a257bf90 JS |
8219 | return IRQ_NONE; |
8220 | } | |
9399627f JS |
8221 | writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)), |
8222 | phba->HAregaddr); | |
8223 | readl(phba->HAregaddr); /* flush */ | |
5b75da2f | 8224 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
9399627f JS |
8225 | } else |
8226 | ha_copy = phba->ha_copy; | |
dea3101e | 8227 | |
8228 | /* | |
9399627f | 8229 | * Process all events on FCP ring. Take the optimized path for FCP IO. |
dea3101e | 8230 | */ |
9399627f JS |
8231 | ha_copy &= ~(phba->work_ha_mask); |
8232 | ||
8233 | status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
dea3101e | 8234 | status >>= (4*LPFC_FCP_RING); |
858c9f6c | 8235 | if (status & HA_RXMASK) |
dea3101e | 8236 | lpfc_sli_handle_fast_ring_event(phba, |
8237 | &phba->sli.ring[LPFC_FCP_RING], | |
8238 | status); | |
a4bc3379 JS |
8239 | |
8240 | if (phba->cfg_multi_ring_support == 2) { | |
8241 | /* | |
9399627f JS |
8242 | * Process all events on extra ring. Take the optimized path |
8243 | * for extra ring IO. | |
a4bc3379 | 8244 | */ |
9399627f | 8245 | status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); |
a4bc3379 | 8246 | status >>= (4*LPFC_EXTRA_RING); |
858c9f6c | 8247 | if (status & HA_RXMASK) { |
a4bc3379 JS |
8248 | lpfc_sli_handle_fast_ring_event(phba, |
8249 | &phba->sli.ring[LPFC_EXTRA_RING], | |
8250 | status); | |
8251 | } | |
8252 | } | |
dea3101e | 8253 | return IRQ_HANDLED; |
3772a991 | 8254 | } /* lpfc_sli_fp_intr_handler */ |
9399627f JS |
8255 | |
8256 | /** | |
3772a991 | 8257 | * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device |
9399627f JS |
8258 | * @irq: Interrupt number. |
8259 | * @dev_id: The device context pointer. | |
8260 | * | |
3772a991 JS |
8261 | * This function is the HBA device-level interrupt handler to device with |
8262 | * SLI-3 interface spec, called from the PCI layer when either MSI or | |
8263 | * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which | |
8264 | * requires driver attention. This function invokes the slow-path interrupt | |
8265 | * attention handling function and fast-path interrupt attention handling | |
8266 | * function in turn to process the relevant HBA attention events. This | |
8267 | * function is called without any lock held. It gets the hbalock to access | |
8268 | * and update SLI data structures. | |
9399627f JS |
8269 | * |
8270 | * This function returns IRQ_HANDLED when interrupt is handled, else it | |
8271 | * returns IRQ_NONE. | |
8272 | **/ | |
8273 | irqreturn_t | |
3772a991 | 8274 | lpfc_sli_intr_handler(int irq, void *dev_id) |
9399627f JS |
8275 | { |
8276 | struct lpfc_hba *phba; | |
8277 | irqreturn_t sp_irq_rc, fp_irq_rc; | |
8278 | unsigned long status1, status2; | |
a747c9ce | 8279 | uint32_t hc_copy; |
9399627f JS |
8280 | |
8281 | /* | |
8282 | * Get the driver's phba structure from the dev_id and | |
8283 | * assume the HBA is not interrupting. | |
8284 | */ | |
8285 | phba = (struct lpfc_hba *) dev_id; | |
8286 | ||
8287 | if (unlikely(!phba)) | |
8288 | return IRQ_NONE; | |
8289 | ||
3772a991 JS |
8290 | /* Check device state for handling interrupt */ |
8291 | if (lpfc_intr_state_check(phba)) | |
9399627f JS |
8292 | return IRQ_NONE; |
8293 | ||
8294 | spin_lock(&phba->hbalock); | |
8295 | phba->ha_copy = readl(phba->HAregaddr); | |
8296 | if (unlikely(!phba->ha_copy)) { | |
8297 | spin_unlock(&phba->hbalock); | |
8298 | return IRQ_NONE; | |
8299 | } else if (phba->ha_copy & HA_ERATT) { | |
8300 | if (phba->hba_flag & HBA_ERATT_HANDLED) | |
8301 | /* ERATT polling has handled ERATT */ | |
8302 | phba->ha_copy &= ~HA_ERATT; | |
8303 | else | |
8304 | /* Indicate interrupt handler handles ERATT */ | |
8305 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
8306 | } | |
8307 | ||
a257bf90 JS |
8308 | /* |
8309 | * If there is deferred error attention, do not check for any interrupt. | |
8310 | */ | |
8311 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
8312 | spin_unlock_irq(&phba->hbalock); | |
8313 | return IRQ_NONE; | |
8314 | } | |
8315 | ||
9399627f | 8316 | /* Clear attention sources except link and error attentions */ |
a747c9ce JS |
8317 | hc_copy = readl(phba->HCregaddr); |
8318 | writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA | |
8319 | | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA), | |
8320 | phba->HCregaddr); | |
9399627f | 8321 | writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr); |
a747c9ce | 8322 | writel(hc_copy, phba->HCregaddr); |
9399627f JS |
8323 | readl(phba->HAregaddr); /* flush */ |
8324 | spin_unlock(&phba->hbalock); | |
8325 | ||
8326 | /* | |
8327 | * Invokes slow-path host attention interrupt handling as appropriate. | |
8328 | */ | |
8329 | ||
8330 | /* status of events with mailbox and link attention */ | |
8331 | status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT); | |
8332 | ||
8333 | /* status of events with ELS ring */ | |
8334 | status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); | |
8335 | status2 >>= (4*LPFC_ELS_RING); | |
8336 | ||
8337 | if (status1 || (status2 & HA_RXMASK)) | |
3772a991 | 8338 | sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id); |
9399627f JS |
8339 | else |
8340 | sp_irq_rc = IRQ_NONE; | |
8341 | ||
8342 | /* | |
8343 | * Invoke fast-path host attention interrupt handling as appropriate. | |
8344 | */ | |
8345 | ||
8346 | /* status of events with FCP ring */ | |
8347 | status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
8348 | status1 >>= (4*LPFC_FCP_RING); | |
8349 | ||
8350 | /* status of events with extra ring */ | |
8351 | if (phba->cfg_multi_ring_support == 2) { | |
8352 | status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); | |
8353 | status2 >>= (4*LPFC_EXTRA_RING); | |
8354 | } else | |
8355 | status2 = 0; | |
8356 | ||
8357 | if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK)) | |
3772a991 | 8358 | fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id); |
9399627f JS |
8359 | else |
8360 | fp_irq_rc = IRQ_NONE; | |
dea3101e | 8361 | |
9399627f JS |
8362 | /* Return device-level interrupt handling status */ |
8363 | return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc; | |
3772a991 | 8364 | } /* lpfc_sli_intr_handler */ |
4f774513 JS |
8365 | |
8366 | /** | |
8367 | * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event | |
8368 | * @phba: pointer to lpfc hba data structure. | |
8369 | * | |
8370 | * This routine is invoked by the worker thread to process all the pending | |
8371 | * SLI4 FCP abort XRI events. | |
8372 | **/ | |
8373 | void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba) | |
8374 | { | |
8375 | struct lpfc_cq_event *cq_event; | |
8376 | ||
8377 | /* First, declare the fcp xri abort event has been handled */ | |
8378 | spin_lock_irq(&phba->hbalock); | |
8379 | phba->hba_flag &= ~FCP_XRI_ABORT_EVENT; | |
8380 | spin_unlock_irq(&phba->hbalock); | |
8381 | /* Now, handle all the fcp xri abort events */ | |
8382 | while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) { | |
8383 | /* Get the first event from the head of the event queue */ | |
8384 | spin_lock_irq(&phba->hbalock); | |
8385 | list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, | |
8386 | cq_event, struct lpfc_cq_event, list); | |
8387 | spin_unlock_irq(&phba->hbalock); | |
8388 | /* Notify aborted XRI for FCP work queue */ | |
8389 | lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri); | |
8390 | /* Free the event processed back to the free pool */ | |
8391 | lpfc_sli4_cq_event_release(phba, cq_event); | |
8392 | } | |
8393 | } | |
8394 | ||
8395 | /** | |
8396 | * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event | |
8397 | * @phba: pointer to lpfc hba data structure. | |
8398 | * | |
8399 | * This routine is invoked by the worker thread to process all the pending | |
8400 | * SLI4 els abort xri events. | |
8401 | **/ | |
8402 | void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba) | |
8403 | { | |
8404 | struct lpfc_cq_event *cq_event; | |
8405 | ||
8406 | /* First, declare the els xri abort event has been handled */ | |
8407 | spin_lock_irq(&phba->hbalock); | |
8408 | phba->hba_flag &= ~ELS_XRI_ABORT_EVENT; | |
8409 | spin_unlock_irq(&phba->hbalock); | |
8410 | /* Now, handle all the els xri abort events */ | |
8411 | while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) { | |
8412 | /* Get the first event from the head of the event queue */ | |
8413 | spin_lock_irq(&phba->hbalock); | |
8414 | list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue, | |
8415 | cq_event, struct lpfc_cq_event, list); | |
8416 | spin_unlock_irq(&phba->hbalock); | |
8417 | /* Notify aborted XRI for ELS work queue */ | |
8418 | lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri); | |
8419 | /* Free the event processed back to the free pool */ | |
8420 | lpfc_sli4_cq_event_release(phba, cq_event); | |
8421 | } | |
8422 | } | |
8423 | ||
341af102 JS |
8424 | /** |
8425 | * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn | |
8426 | * @phba: pointer to lpfc hba data structure | |
8427 | * @pIocbIn: pointer to the rspiocbq | |
8428 | * @pIocbOut: pointer to the cmdiocbq | |
8429 | * @wcqe: pointer to the complete wcqe | |
8430 | * | |
8431 | * This routine transfers the fields of a command iocbq to a response iocbq | |
8432 | * by copying all the IOCB fields from command iocbq and transferring the | |
8433 | * completion status information from the complete wcqe. | |
8434 | **/ | |
4f774513 | 8435 | static void |
341af102 JS |
8436 | lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba, |
8437 | struct lpfc_iocbq *pIocbIn, | |
4f774513 JS |
8438 | struct lpfc_iocbq *pIocbOut, |
8439 | struct lpfc_wcqe_complete *wcqe) | |
8440 | { | |
341af102 | 8441 | unsigned long iflags; |
4f774513 JS |
8442 | size_t offset = offsetof(struct lpfc_iocbq, iocb); |
8443 | ||
8444 | memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset, | |
8445 | sizeof(struct lpfc_iocbq) - offset); | |
4f774513 JS |
8446 | /* Map WCQE parameters into irspiocb parameters */ |
8447 | pIocbIn->iocb.ulpStatus = bf_get(lpfc_wcqe_c_status, wcqe); | |
8448 | if (pIocbOut->iocb_flag & LPFC_IO_FCP) | |
8449 | if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR) | |
8450 | pIocbIn->iocb.un.fcpi.fcpi_parm = | |
8451 | pIocbOut->iocb.un.fcpi.fcpi_parm - | |
8452 | wcqe->total_data_placed; | |
8453 | else | |
8454 | pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter; | |
695a814e | 8455 | else { |
4f774513 | 8456 | pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter; |
695a814e JS |
8457 | pIocbIn->iocb.un.genreq64.bdl.bdeSize = wcqe->total_data_placed; |
8458 | } | |
341af102 JS |
8459 | |
8460 | /* Pick up HBA exchange busy condition */ | |
8461 | if (bf_get(lpfc_wcqe_c_xb, wcqe)) { | |
8462 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8463 | pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY; | |
8464 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8465 | } | |
4f774513 JS |
8466 | } |
8467 | ||
45ed1190 JS |
8468 | /** |
8469 | * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe | |
8470 | * @phba: Pointer to HBA context object. | |
8471 | * @wcqe: Pointer to work-queue completion queue entry. | |
8472 | * | |
8473 | * This routine handles an ELS work-queue completion event and construct | |
8474 | * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common | |
8475 | * discovery engine to handle. | |
8476 | * | |
8477 | * Return: Pointer to the receive IOCBQ, NULL otherwise. | |
8478 | **/ | |
8479 | static struct lpfc_iocbq * | |
8480 | lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba, | |
8481 | struct lpfc_iocbq *irspiocbq) | |
8482 | { | |
8483 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
8484 | struct lpfc_iocbq *cmdiocbq; | |
8485 | struct lpfc_wcqe_complete *wcqe; | |
8486 | unsigned long iflags; | |
8487 | ||
8488 | wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl; | |
8489 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8490 | pring->stats.iocb_event++; | |
8491 | /* Look up the ELS command IOCB and create pseudo response IOCB */ | |
8492 | cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring, | |
8493 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
8494 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8495 | ||
8496 | if (unlikely(!cmdiocbq)) { | |
8497 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
8498 | "0386 ELS complete with no corresponding " | |
8499 | "cmdiocb: iotag (%d)\n", | |
8500 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
8501 | lpfc_sli_release_iocbq(phba, irspiocbq); | |
8502 | return NULL; | |
8503 | } | |
8504 | ||
8505 | /* Fake the irspiocbq and copy necessary response information */ | |
341af102 | 8506 | lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe); |
45ed1190 JS |
8507 | |
8508 | return irspiocbq; | |
8509 | } | |
8510 | ||
04c68496 JS |
8511 | /** |
8512 | * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event | |
8513 | * @phba: Pointer to HBA context object. | |
8514 | * @cqe: Pointer to mailbox completion queue entry. | |
8515 | * | |
8516 | * This routine process a mailbox completion queue entry with asynchrous | |
8517 | * event. | |
8518 | * | |
8519 | * Return: true if work posted to worker thread, otherwise false. | |
8520 | **/ | |
8521 | static bool | |
8522 | lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe) | |
8523 | { | |
8524 | struct lpfc_cq_event *cq_event; | |
8525 | unsigned long iflags; | |
8526 | ||
8527 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
8528 | "0392 Async Event: word0:x%x, word1:x%x, " | |
8529 | "word2:x%x, word3:x%x\n", mcqe->word0, | |
8530 | mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer); | |
8531 | ||
8532 | /* Allocate a new internal CQ_EVENT entry */ | |
8533 | cq_event = lpfc_sli4_cq_event_alloc(phba); | |
8534 | if (!cq_event) { | |
8535 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8536 | "0394 Failed to allocate CQ_EVENT entry\n"); | |
8537 | return false; | |
8538 | } | |
8539 | ||
8540 | /* Move the CQE into an asynchronous event entry */ | |
8541 | memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe)); | |
8542 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8543 | list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue); | |
8544 | /* Set the async event flag */ | |
8545 | phba->hba_flag |= ASYNC_EVENT; | |
8546 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8547 | ||
8548 | return true; | |
8549 | } | |
8550 | ||
8551 | /** | |
8552 | * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event | |
8553 | * @phba: Pointer to HBA context object. | |
8554 | * @cqe: Pointer to mailbox completion queue entry. | |
8555 | * | |
8556 | * This routine process a mailbox completion queue entry with mailbox | |
8557 | * completion event. | |
8558 | * | |
8559 | * Return: true if work posted to worker thread, otherwise false. | |
8560 | **/ | |
8561 | static bool | |
8562 | lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe) | |
8563 | { | |
8564 | uint32_t mcqe_status; | |
8565 | MAILBOX_t *mbox, *pmbox; | |
8566 | struct lpfc_mqe *mqe; | |
8567 | struct lpfc_vport *vport; | |
8568 | struct lpfc_nodelist *ndlp; | |
8569 | struct lpfc_dmabuf *mp; | |
8570 | unsigned long iflags; | |
8571 | LPFC_MBOXQ_t *pmb; | |
8572 | bool workposted = false; | |
8573 | int rc; | |
8574 | ||
8575 | /* If not a mailbox complete MCQE, out by checking mailbox consume */ | |
8576 | if (!bf_get(lpfc_trailer_completed, mcqe)) | |
8577 | goto out_no_mqe_complete; | |
8578 | ||
8579 | /* Get the reference to the active mbox command */ | |
8580 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8581 | pmb = phba->sli.mbox_active; | |
8582 | if (unlikely(!pmb)) { | |
8583 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
8584 | "1832 No pending MBOX command to handle\n"); | |
8585 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8586 | goto out_no_mqe_complete; | |
8587 | } | |
8588 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8589 | mqe = &pmb->u.mqe; | |
8590 | pmbox = (MAILBOX_t *)&pmb->u.mqe; | |
8591 | mbox = phba->mbox; | |
8592 | vport = pmb->vport; | |
8593 | ||
8594 | /* Reset heartbeat timer */ | |
8595 | phba->last_completion_time = jiffies; | |
8596 | del_timer(&phba->sli.mbox_tmo); | |
8597 | ||
8598 | /* Move mbox data to caller's mailbox region, do endian swapping */ | |
8599 | if (pmb->mbox_cmpl && mbox) | |
8600 | lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe)); | |
8601 | /* Set the mailbox status with SLI4 range 0x4000 */ | |
8602 | mcqe_status = bf_get(lpfc_mcqe_status, mcqe); | |
8603 | if (mcqe_status != MB_CQE_STATUS_SUCCESS) | |
8604 | bf_set(lpfc_mqe_status, mqe, | |
8605 | (LPFC_MBX_ERROR_RANGE | mcqe_status)); | |
8606 | ||
8607 | if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) { | |
8608 | pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG; | |
8609 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT, | |
8610 | "MBOX dflt rpi: status:x%x rpi:x%x", | |
8611 | mcqe_status, | |
8612 | pmbox->un.varWords[0], 0); | |
8613 | if (mcqe_status == MB_CQE_STATUS_SUCCESS) { | |
8614 | mp = (struct lpfc_dmabuf *)(pmb->context1); | |
8615 | ndlp = (struct lpfc_nodelist *)pmb->context2; | |
8616 | /* Reg_LOGIN of dflt RPI was successful. Now lets get | |
8617 | * RID of the PPI using the same mbox buffer. | |
8618 | */ | |
8619 | lpfc_unreg_login(phba, vport->vpi, | |
8620 | pmbox->un.varWords[0], pmb); | |
8621 | pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; | |
8622 | pmb->context1 = mp; | |
8623 | pmb->context2 = ndlp; | |
8624 | pmb->vport = vport; | |
8625 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
8626 | if (rc != MBX_BUSY) | |
8627 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | | |
8628 | LOG_SLI, "0385 rc should " | |
8629 | "have been MBX_BUSY\n"); | |
8630 | if (rc != MBX_NOT_FINISHED) | |
8631 | goto send_current_mbox; | |
8632 | } | |
8633 | } | |
8634 | spin_lock_irqsave(&phba->pport->work_port_lock, iflags); | |
8635 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; | |
8636 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); | |
8637 | ||
8638 | /* There is mailbox completion work to do */ | |
8639 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8640 | __lpfc_mbox_cmpl_put(phba, pmb); | |
8641 | phba->work_ha |= HA_MBATT; | |
8642 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8643 | workposted = true; | |
8644 | ||
8645 | send_current_mbox: | |
8646 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8647 | /* Release the mailbox command posting token */ | |
8648 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
8649 | /* Setting active mailbox pointer need to be in sync to flag clear */ | |
8650 | phba->sli.mbox_active = NULL; | |
8651 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8652 | /* Wake up worker thread to post the next pending mailbox command */ | |
8653 | lpfc_worker_wake_up(phba); | |
8654 | out_no_mqe_complete: | |
8655 | if (bf_get(lpfc_trailer_consumed, mcqe)) | |
8656 | lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq); | |
8657 | return workposted; | |
8658 | } | |
8659 | ||
8660 | /** | |
8661 | * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry | |
8662 | * @phba: Pointer to HBA context object. | |
8663 | * @cqe: Pointer to mailbox completion queue entry. | |
8664 | * | |
8665 | * This routine process a mailbox completion queue entry, it invokes the | |
8666 | * proper mailbox complete handling or asynchrous event handling routine | |
8667 | * according to the MCQE's async bit. | |
8668 | * | |
8669 | * Return: true if work posted to worker thread, otherwise false. | |
8670 | **/ | |
8671 | static bool | |
8672 | lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe) | |
8673 | { | |
8674 | struct lpfc_mcqe mcqe; | |
8675 | bool workposted; | |
8676 | ||
8677 | /* Copy the mailbox MCQE and convert endian order as needed */ | |
8678 | lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe)); | |
8679 | ||
8680 | /* Invoke the proper event handling routine */ | |
8681 | if (!bf_get(lpfc_trailer_async, &mcqe)) | |
8682 | workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe); | |
8683 | else | |
8684 | workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe); | |
8685 | return workposted; | |
8686 | } | |
8687 | ||
4f774513 JS |
8688 | /** |
8689 | * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event | |
8690 | * @phba: Pointer to HBA context object. | |
8691 | * @wcqe: Pointer to work-queue completion queue entry. | |
8692 | * | |
8693 | * This routine handles an ELS work-queue completion event. | |
8694 | * | |
8695 | * Return: true if work posted to worker thread, otherwise false. | |
8696 | **/ | |
8697 | static bool | |
8698 | lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, | |
8699 | struct lpfc_wcqe_complete *wcqe) | |
8700 | { | |
4f774513 JS |
8701 | struct lpfc_iocbq *irspiocbq; |
8702 | unsigned long iflags; | |
4f774513 | 8703 | |
45ed1190 | 8704 | /* Get an irspiocbq for later ELS response processing use */ |
4f774513 JS |
8705 | irspiocbq = lpfc_sli_get_iocbq(phba); |
8706 | if (!irspiocbq) { | |
8707 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8708 | "0387 Failed to allocate an iocbq\n"); | |
45ed1190 | 8709 | return false; |
4f774513 | 8710 | } |
4f774513 | 8711 | |
45ed1190 JS |
8712 | /* Save off the slow-path queue event for work thread to process */ |
8713 | memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe)); | |
4f774513 | 8714 | spin_lock_irqsave(&phba->hbalock, iflags); |
4d9ab994 | 8715 | list_add_tail(&irspiocbq->cq_event.list, |
45ed1190 JS |
8716 | &phba->sli4_hba.sp_queue_event); |
8717 | phba->hba_flag |= HBA_SP_QUEUE_EVT; | |
4f774513 | 8718 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
4f774513 | 8719 | |
45ed1190 | 8720 | return true; |
4f774513 JS |
8721 | } |
8722 | ||
8723 | /** | |
8724 | * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event | |
8725 | * @phba: Pointer to HBA context object. | |
8726 | * @wcqe: Pointer to work-queue completion queue entry. | |
8727 | * | |
8728 | * This routine handles slow-path WQ entry comsumed event by invoking the | |
8729 | * proper WQ release routine to the slow-path WQ. | |
8730 | **/ | |
8731 | static void | |
8732 | lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba, | |
8733 | struct lpfc_wcqe_release *wcqe) | |
8734 | { | |
8735 | /* Check for the slow-path ELS work queue */ | |
8736 | if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id) | |
8737 | lpfc_sli4_wq_release(phba->sli4_hba.els_wq, | |
8738 | bf_get(lpfc_wcqe_r_wqe_index, wcqe)); | |
8739 | else | |
8740 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
8741 | "2579 Slow-path wqe consume event carries " | |
8742 | "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n", | |
8743 | bf_get(lpfc_wcqe_r_wqe_index, wcqe), | |
8744 | phba->sli4_hba.els_wq->queue_id); | |
8745 | } | |
8746 | ||
8747 | /** | |
8748 | * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event | |
8749 | * @phba: Pointer to HBA context object. | |
8750 | * @cq: Pointer to a WQ completion queue. | |
8751 | * @wcqe: Pointer to work-queue completion queue entry. | |
8752 | * | |
8753 | * This routine handles an XRI abort event. | |
8754 | * | |
8755 | * Return: true if work posted to worker thread, otherwise false. | |
8756 | **/ | |
8757 | static bool | |
8758 | lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba, | |
8759 | struct lpfc_queue *cq, | |
8760 | struct sli4_wcqe_xri_aborted *wcqe) | |
8761 | { | |
8762 | bool workposted = false; | |
8763 | struct lpfc_cq_event *cq_event; | |
8764 | unsigned long iflags; | |
8765 | ||
8766 | /* Allocate a new internal CQ_EVENT entry */ | |
8767 | cq_event = lpfc_sli4_cq_event_alloc(phba); | |
8768 | if (!cq_event) { | |
8769 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8770 | "0602 Failed to allocate CQ_EVENT entry\n"); | |
8771 | return false; | |
8772 | } | |
8773 | ||
8774 | /* Move the CQE into the proper xri abort event list */ | |
8775 | memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted)); | |
8776 | switch (cq->subtype) { | |
8777 | case LPFC_FCP: | |
8778 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8779 | list_add_tail(&cq_event->list, | |
8780 | &phba->sli4_hba.sp_fcp_xri_aborted_work_queue); | |
8781 | /* Set the fcp xri abort event flag */ | |
8782 | phba->hba_flag |= FCP_XRI_ABORT_EVENT; | |
8783 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8784 | workposted = true; | |
8785 | break; | |
8786 | case LPFC_ELS: | |
8787 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8788 | list_add_tail(&cq_event->list, | |
8789 | &phba->sli4_hba.sp_els_xri_aborted_work_queue); | |
8790 | /* Set the els xri abort event flag */ | |
8791 | phba->hba_flag |= ELS_XRI_ABORT_EVENT; | |
8792 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8793 | workposted = true; | |
8794 | break; | |
8795 | default: | |
8796 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8797 | "0603 Invalid work queue CQE subtype (x%x)\n", | |
8798 | cq->subtype); | |
8799 | workposted = false; | |
8800 | break; | |
8801 | } | |
8802 | return workposted; | |
8803 | } | |
8804 | ||
4f774513 JS |
8805 | /** |
8806 | * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry | |
8807 | * @phba: Pointer to HBA context object. | |
8808 | * @rcqe: Pointer to receive-queue completion queue entry. | |
8809 | * | |
8810 | * This routine process a receive-queue completion queue entry. | |
8811 | * | |
8812 | * Return: true if work posted to worker thread, otherwise false. | |
8813 | **/ | |
8814 | static bool | |
4d9ab994 | 8815 | lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe) |
4f774513 | 8816 | { |
4f774513 JS |
8817 | bool workposted = false; |
8818 | struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq; | |
8819 | struct lpfc_queue *drq = phba->sli4_hba.dat_rq; | |
8820 | struct hbq_dmabuf *dma_buf; | |
8821 | uint32_t status; | |
8822 | unsigned long iflags; | |
8823 | ||
4d9ab994 | 8824 | if (bf_get(lpfc_rcqe_rq_id, rcqe) != hrq->queue_id) |
4f774513 JS |
8825 | goto out; |
8826 | ||
4d9ab994 | 8827 | status = bf_get(lpfc_rcqe_status, rcqe); |
4f774513 JS |
8828 | switch (status) { |
8829 | case FC_STATUS_RQ_BUF_LEN_EXCEEDED: | |
8830 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8831 | "2537 Receive Frame Truncated!!\n"); | |
8832 | case FC_STATUS_RQ_SUCCESS: | |
5ffc266e | 8833 | lpfc_sli4_rq_release(hrq, drq); |
4f774513 JS |
8834 | spin_lock_irqsave(&phba->hbalock, iflags); |
8835 | dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list); | |
8836 | if (!dma_buf) { | |
8837 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8838 | goto out; | |
8839 | } | |
4d9ab994 | 8840 | memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe)); |
4f774513 | 8841 | /* save off the frame for the word thread to process */ |
4d9ab994 | 8842 | list_add_tail(&dma_buf->cq_event.list, |
45ed1190 | 8843 | &phba->sli4_hba.sp_queue_event); |
4f774513 | 8844 | /* Frame received */ |
45ed1190 | 8845 | phba->hba_flag |= HBA_SP_QUEUE_EVT; |
4f774513 JS |
8846 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
8847 | workposted = true; | |
8848 | break; | |
8849 | case FC_STATUS_INSUFF_BUF_NEED_BUF: | |
8850 | case FC_STATUS_INSUFF_BUF_FRM_DISC: | |
8851 | /* Post more buffers if possible */ | |
8852 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8853 | phba->hba_flag |= HBA_POST_RECEIVE_BUFFER; | |
8854 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8855 | workposted = true; | |
8856 | break; | |
8857 | } | |
8858 | out: | |
8859 | return workposted; | |
4f774513 JS |
8860 | } |
8861 | ||
4d9ab994 JS |
8862 | /** |
8863 | * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry | |
8864 | * @phba: Pointer to HBA context object. | |
8865 | * @cq: Pointer to the completion queue. | |
8866 | * @wcqe: Pointer to a completion queue entry. | |
8867 | * | |
8868 | * This routine process a slow-path work-queue or recieve queue completion queue | |
8869 | * entry. | |
8870 | * | |
8871 | * Return: true if work posted to worker thread, otherwise false. | |
8872 | **/ | |
8873 | static bool | |
8874 | lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq, | |
8875 | struct lpfc_cqe *cqe) | |
8876 | { | |
45ed1190 | 8877 | struct lpfc_cqe cqevt; |
4d9ab994 JS |
8878 | bool workposted = false; |
8879 | ||
8880 | /* Copy the work queue CQE and convert endian order if needed */ | |
45ed1190 | 8881 | lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe)); |
4d9ab994 JS |
8882 | |
8883 | /* Check and process for different type of WCQE and dispatch */ | |
45ed1190 | 8884 | switch (bf_get(lpfc_cqe_code, &cqevt)) { |
4d9ab994 | 8885 | case CQE_CODE_COMPL_WQE: |
45ed1190 | 8886 | /* Process the WQ/RQ complete event */ |
4d9ab994 | 8887 | workposted = lpfc_sli4_sp_handle_els_wcqe(phba, |
45ed1190 | 8888 | (struct lpfc_wcqe_complete *)&cqevt); |
4d9ab994 JS |
8889 | break; |
8890 | case CQE_CODE_RELEASE_WQE: | |
8891 | /* Process the WQ release event */ | |
8892 | lpfc_sli4_sp_handle_rel_wcqe(phba, | |
45ed1190 | 8893 | (struct lpfc_wcqe_release *)&cqevt); |
4d9ab994 JS |
8894 | break; |
8895 | case CQE_CODE_XRI_ABORTED: | |
8896 | /* Process the WQ XRI abort event */ | |
8897 | workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq, | |
45ed1190 | 8898 | (struct sli4_wcqe_xri_aborted *)&cqevt); |
4d9ab994 JS |
8899 | break; |
8900 | case CQE_CODE_RECEIVE: | |
8901 | /* Process the RQ event */ | |
8902 | workposted = lpfc_sli4_sp_handle_rcqe(phba, | |
45ed1190 | 8903 | (struct lpfc_rcqe *)&cqevt); |
4d9ab994 JS |
8904 | break; |
8905 | default: | |
8906 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8907 | "0388 Not a valid WCQE code: x%x\n", | |
45ed1190 | 8908 | bf_get(lpfc_cqe_code, &cqevt)); |
4d9ab994 JS |
8909 | break; |
8910 | } | |
8911 | return workposted; | |
8912 | } | |
8913 | ||
4f774513 JS |
8914 | /** |
8915 | * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry | |
8916 | * @phba: Pointer to HBA context object. | |
8917 | * @eqe: Pointer to fast-path event queue entry. | |
8918 | * | |
8919 | * This routine process a event queue entry from the slow-path event queue. | |
8920 | * It will check the MajorCode and MinorCode to determine this is for a | |
8921 | * completion event on a completion queue, if not, an error shall be logged | |
8922 | * and just return. Otherwise, it will get to the corresponding completion | |
8923 | * queue and process all the entries on that completion queue, rearm the | |
8924 | * completion queue, and then return. | |
8925 | * | |
8926 | **/ | |
8927 | static void | |
8928 | lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe) | |
8929 | { | |
8930 | struct lpfc_queue *cq = NULL, *childq, *speq; | |
8931 | struct lpfc_cqe *cqe; | |
8932 | bool workposted = false; | |
8933 | int ecount = 0; | |
8934 | uint16_t cqid; | |
8935 | ||
28baac74 | 8936 | if (bf_get(lpfc_eqe_major_code, eqe) != 0) { |
4f774513 JS |
8937 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
8938 | "0359 Not a valid slow-path completion " | |
8939 | "event: majorcode=x%x, minorcode=x%x\n", | |
8940 | bf_get(lpfc_eqe_major_code, eqe), | |
8941 | bf_get(lpfc_eqe_minor_code, eqe)); | |
8942 | return; | |
8943 | } | |
8944 | ||
8945 | /* Get the reference to the corresponding CQ */ | |
8946 | cqid = bf_get(lpfc_eqe_resource_id, eqe); | |
8947 | ||
8948 | /* Search for completion queue pointer matching this cqid */ | |
8949 | speq = phba->sli4_hba.sp_eq; | |
8950 | list_for_each_entry(childq, &speq->child_list, list) { | |
8951 | if (childq->queue_id == cqid) { | |
8952 | cq = childq; | |
8953 | break; | |
8954 | } | |
8955 | } | |
8956 | if (unlikely(!cq)) { | |
8957 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8958 | "0365 Slow-path CQ identifier (%d) does " | |
8959 | "not exist\n", cqid); | |
8960 | return; | |
8961 | } | |
8962 | ||
8963 | /* Process all the entries to the CQ */ | |
8964 | switch (cq->type) { | |
8965 | case LPFC_MCQ: | |
8966 | while ((cqe = lpfc_sli4_cq_get(cq))) { | |
8967 | workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe); | |
8968 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
8969 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM); | |
8970 | } | |
8971 | break; | |
8972 | case LPFC_WCQ: | |
8973 | while ((cqe = lpfc_sli4_cq_get(cq))) { | |
4d9ab994 | 8974 | workposted |= lpfc_sli4_sp_handle_cqe(phba, cq, cqe); |
4f774513 JS |
8975 | if (!(++ecount % LPFC_GET_QE_REL_INT)) |
8976 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM); | |
8977 | } | |
8978 | break; | |
8979 | default: | |
8980 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8981 | "0370 Invalid completion queue type (%d)\n", | |
8982 | cq->type); | |
8983 | return; | |
8984 | } | |
8985 | ||
8986 | /* Catch the no cq entry condition, log an error */ | |
8987 | if (unlikely(ecount == 0)) | |
8988 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8989 | "0371 No entry from the CQ: identifier " | |
8990 | "(x%x), type (%d)\n", cq->queue_id, cq->type); | |
8991 | ||
8992 | /* In any case, flash and re-arm the RCQ */ | |
8993 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM); | |
8994 | ||
8995 | /* wake up worker thread if there are works to be done */ | |
8996 | if (workposted) | |
8997 | lpfc_worker_wake_up(phba); | |
8998 | } | |
8999 | ||
9000 | /** | |
9001 | * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry | |
9002 | * @eqe: Pointer to fast-path completion queue entry. | |
9003 | * | |
9004 | * This routine process a fast-path work queue completion entry from fast-path | |
9005 | * event queue for FCP command response completion. | |
9006 | **/ | |
9007 | static void | |
9008 | lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, | |
9009 | struct lpfc_wcqe_complete *wcqe) | |
9010 | { | |
9011 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING]; | |
9012 | struct lpfc_iocbq *cmdiocbq; | |
9013 | struct lpfc_iocbq irspiocbq; | |
9014 | unsigned long iflags; | |
9015 | ||
9016 | spin_lock_irqsave(&phba->hbalock, iflags); | |
9017 | pring->stats.iocb_event++; | |
9018 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
9019 | ||
9020 | /* Check for response status */ | |
9021 | if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) { | |
9022 | /* If resource errors reported from HBA, reduce queue | |
9023 | * depth of the SCSI device. | |
9024 | */ | |
9025 | if ((bf_get(lpfc_wcqe_c_status, wcqe) == | |
9026 | IOSTAT_LOCAL_REJECT) && | |
9027 | (wcqe->parameter == IOERR_NO_RESOURCES)) { | |
9028 | phba->lpfc_rampdown_queue_depth(phba); | |
9029 | } | |
9030 | /* Log the error status */ | |
9031 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9032 | "0373 FCP complete error: status=x%x, " | |
9033 | "hw_status=x%x, total_data_specified=%d, " | |
9034 | "parameter=x%x, word3=x%x\n", | |
9035 | bf_get(lpfc_wcqe_c_status, wcqe), | |
9036 | bf_get(lpfc_wcqe_c_hw_status, wcqe), | |
9037 | wcqe->total_data_placed, wcqe->parameter, | |
9038 | wcqe->word3); | |
9039 | } | |
9040 | ||
9041 | /* Look up the FCP command IOCB and create pseudo response IOCB */ | |
9042 | spin_lock_irqsave(&phba->hbalock, iflags); | |
9043 | cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring, | |
9044 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
9045 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
9046 | if (unlikely(!cmdiocbq)) { | |
9047 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9048 | "0374 FCP complete with no corresponding " | |
9049 | "cmdiocb: iotag (%d)\n", | |
9050 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
9051 | return; | |
9052 | } | |
9053 | if (unlikely(!cmdiocbq->iocb_cmpl)) { | |
9054 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9055 | "0375 FCP cmdiocb not callback function " | |
9056 | "iotag: (%d)\n", | |
9057 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
9058 | return; | |
9059 | } | |
9060 | ||
9061 | /* Fake the irspiocb and copy necessary response information */ | |
341af102 | 9062 | lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe); |
4f774513 JS |
9063 | |
9064 | /* Pass the cmd_iocb and the rsp state to the upper layer */ | |
9065 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq); | |
9066 | } | |
9067 | ||
9068 | /** | |
9069 | * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event | |
9070 | * @phba: Pointer to HBA context object. | |
9071 | * @cq: Pointer to completion queue. | |
9072 | * @wcqe: Pointer to work-queue completion queue entry. | |
9073 | * | |
9074 | * This routine handles an fast-path WQ entry comsumed event by invoking the | |
9075 | * proper WQ release routine to the slow-path WQ. | |
9076 | **/ | |
9077 | static void | |
9078 | lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq, | |
9079 | struct lpfc_wcqe_release *wcqe) | |
9080 | { | |
9081 | struct lpfc_queue *childwq; | |
9082 | bool wqid_matched = false; | |
9083 | uint16_t fcp_wqid; | |
9084 | ||
9085 | /* Check for fast-path FCP work queue release */ | |
9086 | fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe); | |
9087 | list_for_each_entry(childwq, &cq->child_list, list) { | |
9088 | if (childwq->queue_id == fcp_wqid) { | |
9089 | lpfc_sli4_wq_release(childwq, | |
9090 | bf_get(lpfc_wcqe_r_wqe_index, wcqe)); | |
9091 | wqid_matched = true; | |
9092 | break; | |
9093 | } | |
9094 | } | |
9095 | /* Report warning log message if no match found */ | |
9096 | if (wqid_matched != true) | |
9097 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9098 | "2580 Fast-path wqe consume event carries " | |
9099 | "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid); | |
9100 | } | |
9101 | ||
9102 | /** | |
9103 | * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry | |
9104 | * @cq: Pointer to the completion queue. | |
9105 | * @eqe: Pointer to fast-path completion queue entry. | |
9106 | * | |
9107 | * This routine process a fast-path work queue completion entry from fast-path | |
9108 | * event queue for FCP command response completion. | |
9109 | **/ | |
9110 | static int | |
9111 | lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq, | |
9112 | struct lpfc_cqe *cqe) | |
9113 | { | |
9114 | struct lpfc_wcqe_release wcqe; | |
9115 | bool workposted = false; | |
9116 | ||
9117 | /* Copy the work queue CQE and convert endian order if needed */ | |
9118 | lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe)); | |
9119 | ||
9120 | /* Check and process for different type of WCQE and dispatch */ | |
9121 | switch (bf_get(lpfc_wcqe_c_code, &wcqe)) { | |
9122 | case CQE_CODE_COMPL_WQE: | |
9123 | /* Process the WQ complete event */ | |
9124 | lpfc_sli4_fp_handle_fcp_wcqe(phba, | |
9125 | (struct lpfc_wcqe_complete *)&wcqe); | |
9126 | break; | |
9127 | case CQE_CODE_RELEASE_WQE: | |
9128 | /* Process the WQ release event */ | |
9129 | lpfc_sli4_fp_handle_rel_wcqe(phba, cq, | |
9130 | (struct lpfc_wcqe_release *)&wcqe); | |
9131 | break; | |
9132 | case CQE_CODE_XRI_ABORTED: | |
9133 | /* Process the WQ XRI abort event */ | |
9134 | workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq, | |
9135 | (struct sli4_wcqe_xri_aborted *)&wcqe); | |
9136 | break; | |
9137 | default: | |
9138 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9139 | "0144 Not a valid WCQE code: x%x\n", | |
9140 | bf_get(lpfc_wcqe_c_code, &wcqe)); | |
9141 | break; | |
9142 | } | |
9143 | return workposted; | |
9144 | } | |
9145 | ||
9146 | /** | |
9147 | * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry | |
9148 | * @phba: Pointer to HBA context object. | |
9149 | * @eqe: Pointer to fast-path event queue entry. | |
9150 | * | |
9151 | * This routine process a event queue entry from the fast-path event queue. | |
9152 | * It will check the MajorCode and MinorCode to determine this is for a | |
9153 | * completion event on a completion queue, if not, an error shall be logged | |
9154 | * and just return. Otherwise, it will get to the corresponding completion | |
9155 | * queue and process all the entries on the completion queue, rearm the | |
9156 | * completion queue, and then return. | |
9157 | **/ | |
9158 | static void | |
9159 | lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe, | |
9160 | uint32_t fcp_cqidx) | |
9161 | { | |
9162 | struct lpfc_queue *cq; | |
9163 | struct lpfc_cqe *cqe; | |
9164 | bool workposted = false; | |
9165 | uint16_t cqid; | |
9166 | int ecount = 0; | |
9167 | ||
28baac74 | 9168 | if (unlikely(bf_get(lpfc_eqe_major_code, eqe) != 0)) { |
4f774513 JS |
9169 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
9170 | "0366 Not a valid fast-path completion " | |
9171 | "event: majorcode=x%x, minorcode=x%x\n", | |
9172 | bf_get(lpfc_eqe_major_code, eqe), | |
9173 | bf_get(lpfc_eqe_minor_code, eqe)); | |
9174 | return; | |
9175 | } | |
9176 | ||
9177 | cq = phba->sli4_hba.fcp_cq[fcp_cqidx]; | |
9178 | if (unlikely(!cq)) { | |
9179 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9180 | "0367 Fast-path completion queue does not " | |
9181 | "exist\n"); | |
9182 | return; | |
9183 | } | |
9184 | ||
9185 | /* Get the reference to the corresponding CQ */ | |
9186 | cqid = bf_get(lpfc_eqe_resource_id, eqe); | |
9187 | if (unlikely(cqid != cq->queue_id)) { | |
9188 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9189 | "0368 Miss-matched fast-path completion " | |
9190 | "queue identifier: eqcqid=%d, fcpcqid=%d\n", | |
9191 | cqid, cq->queue_id); | |
9192 | return; | |
9193 | } | |
9194 | ||
9195 | /* Process all the entries to the CQ */ | |
9196 | while ((cqe = lpfc_sli4_cq_get(cq))) { | |
9197 | workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe); | |
9198 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
9199 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM); | |
9200 | } | |
9201 | ||
9202 | /* Catch the no cq entry condition */ | |
9203 | if (unlikely(ecount == 0)) | |
9204 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9205 | "0369 No entry from fast-path completion " | |
9206 | "queue fcpcqid=%d\n", cq->queue_id); | |
9207 | ||
9208 | /* In any case, flash and re-arm the CQ */ | |
9209 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM); | |
9210 | ||
9211 | /* wake up worker thread if there are works to be done */ | |
9212 | if (workposted) | |
9213 | lpfc_worker_wake_up(phba); | |
9214 | } | |
9215 | ||
9216 | static void | |
9217 | lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq) | |
9218 | { | |
9219 | struct lpfc_eqe *eqe; | |
9220 | ||
9221 | /* walk all the EQ entries and drop on the floor */ | |
9222 | while ((eqe = lpfc_sli4_eq_get(eq))) | |
9223 | ; | |
9224 | ||
9225 | /* Clear and re-arm the EQ */ | |
9226 | lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM); | |
9227 | } | |
9228 | ||
9229 | /** | |
9230 | * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device | |
9231 | * @irq: Interrupt number. | |
9232 | * @dev_id: The device context pointer. | |
9233 | * | |
9234 | * This function is directly called from the PCI layer as an interrupt | |
9235 | * service routine when device with SLI-4 interface spec is enabled with | |
9236 | * MSI-X multi-message interrupt mode and there are slow-path events in | |
9237 | * the HBA. However, when the device is enabled with either MSI or Pin-IRQ | |
9238 | * interrupt mode, this function is called as part of the device-level | |
9239 | * interrupt handler. When the PCI slot is in error recovery or the HBA is | |
9240 | * undergoing initialization, the interrupt handler will not process the | |
9241 | * interrupt. The link attention and ELS ring attention events are handled | |
9242 | * by the worker thread. The interrupt handler signals the worker thread | |
9243 | * and returns for these events. This function is called without any lock | |
9244 | * held. It gets the hbalock to access and update SLI data structures. | |
9245 | * | |
9246 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
9247 | * returns IRQ_NONE. | |
9248 | **/ | |
9249 | irqreturn_t | |
9250 | lpfc_sli4_sp_intr_handler(int irq, void *dev_id) | |
9251 | { | |
9252 | struct lpfc_hba *phba; | |
9253 | struct lpfc_queue *speq; | |
9254 | struct lpfc_eqe *eqe; | |
9255 | unsigned long iflag; | |
9256 | int ecount = 0; | |
9257 | ||
9258 | /* | |
9259 | * Get the driver's phba structure from the dev_id | |
9260 | */ | |
9261 | phba = (struct lpfc_hba *)dev_id; | |
9262 | ||
9263 | if (unlikely(!phba)) | |
9264 | return IRQ_NONE; | |
9265 | ||
9266 | /* Get to the EQ struct associated with this vector */ | |
9267 | speq = phba->sli4_hba.sp_eq; | |
9268 | ||
9269 | /* Check device state for handling interrupt */ | |
9270 | if (unlikely(lpfc_intr_state_check(phba))) { | |
9271 | /* Check again for link_state with lock held */ | |
9272 | spin_lock_irqsave(&phba->hbalock, iflag); | |
9273 | if (phba->link_state < LPFC_LINK_DOWN) | |
9274 | /* Flush, clear interrupt, and rearm the EQ */ | |
9275 | lpfc_sli4_eq_flush(phba, speq); | |
9276 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
9277 | return IRQ_NONE; | |
9278 | } | |
9279 | ||
9280 | /* | |
9281 | * Process all the event on FCP slow-path EQ | |
9282 | */ | |
9283 | while ((eqe = lpfc_sli4_eq_get(speq))) { | |
9284 | lpfc_sli4_sp_handle_eqe(phba, eqe); | |
9285 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
9286 | lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM); | |
9287 | } | |
9288 | ||
9289 | /* Always clear and re-arm the slow-path EQ */ | |
9290 | lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM); | |
9291 | ||
9292 | /* Catch the no cq entry condition */ | |
9293 | if (unlikely(ecount == 0)) { | |
9294 | if (phba->intr_type == MSIX) | |
9295 | /* MSI-X treated interrupt served as no EQ share INT */ | |
9296 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9297 | "0357 MSI-X interrupt with no EQE\n"); | |
9298 | else | |
9299 | /* Non MSI-X treated on interrupt as EQ share INT */ | |
9300 | return IRQ_NONE; | |
9301 | } | |
9302 | ||
9303 | return IRQ_HANDLED; | |
9304 | } /* lpfc_sli4_sp_intr_handler */ | |
9305 | ||
9306 | /** | |
9307 | * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device | |
9308 | * @irq: Interrupt number. | |
9309 | * @dev_id: The device context pointer. | |
9310 | * | |
9311 | * This function is directly called from the PCI layer as an interrupt | |
9312 | * service routine when device with SLI-4 interface spec is enabled with | |
9313 | * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB | |
9314 | * ring event in the HBA. However, when the device is enabled with either | |
9315 | * MSI or Pin-IRQ interrupt mode, this function is called as part of the | |
9316 | * device-level interrupt handler. When the PCI slot is in error recovery | |
9317 | * or the HBA is undergoing initialization, the interrupt handler will not | |
9318 | * process the interrupt. The SCSI FCP fast-path ring event are handled in | |
9319 | * the intrrupt context. This function is called without any lock held. | |
9320 | * It gets the hbalock to access and update SLI data structures. Note that, | |
9321 | * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is | |
9322 | * equal to that of FCP CQ index. | |
9323 | * | |
9324 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
9325 | * returns IRQ_NONE. | |
9326 | **/ | |
9327 | irqreturn_t | |
9328 | lpfc_sli4_fp_intr_handler(int irq, void *dev_id) | |
9329 | { | |
9330 | struct lpfc_hba *phba; | |
9331 | struct lpfc_fcp_eq_hdl *fcp_eq_hdl; | |
9332 | struct lpfc_queue *fpeq; | |
9333 | struct lpfc_eqe *eqe; | |
9334 | unsigned long iflag; | |
9335 | int ecount = 0; | |
9336 | uint32_t fcp_eqidx; | |
9337 | ||
9338 | /* Get the driver's phba structure from the dev_id */ | |
9339 | fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id; | |
9340 | phba = fcp_eq_hdl->phba; | |
9341 | fcp_eqidx = fcp_eq_hdl->idx; | |
9342 | ||
9343 | if (unlikely(!phba)) | |
9344 | return IRQ_NONE; | |
9345 | ||
9346 | /* Get to the EQ struct associated with this vector */ | |
9347 | fpeq = phba->sli4_hba.fp_eq[fcp_eqidx]; | |
9348 | ||
9349 | /* Check device state for handling interrupt */ | |
9350 | if (unlikely(lpfc_intr_state_check(phba))) { | |
9351 | /* Check again for link_state with lock held */ | |
9352 | spin_lock_irqsave(&phba->hbalock, iflag); | |
9353 | if (phba->link_state < LPFC_LINK_DOWN) | |
9354 | /* Flush, clear interrupt, and rearm the EQ */ | |
9355 | lpfc_sli4_eq_flush(phba, fpeq); | |
9356 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
9357 | return IRQ_NONE; | |
9358 | } | |
9359 | ||
9360 | /* | |
9361 | * Process all the event on FCP fast-path EQ | |
9362 | */ | |
9363 | while ((eqe = lpfc_sli4_eq_get(fpeq))) { | |
9364 | lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx); | |
9365 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
9366 | lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM); | |
9367 | } | |
9368 | ||
9369 | /* Always clear and re-arm the fast-path EQ */ | |
9370 | lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM); | |
9371 | ||
9372 | if (unlikely(ecount == 0)) { | |
9373 | if (phba->intr_type == MSIX) | |
9374 | /* MSI-X treated interrupt served as no EQ share INT */ | |
9375 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9376 | "0358 MSI-X interrupt with no EQE\n"); | |
9377 | else | |
9378 | /* Non MSI-X treated on interrupt as EQ share INT */ | |
9379 | return IRQ_NONE; | |
9380 | } | |
9381 | ||
9382 | return IRQ_HANDLED; | |
9383 | } /* lpfc_sli4_fp_intr_handler */ | |
9384 | ||
9385 | /** | |
9386 | * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device | |
9387 | * @irq: Interrupt number. | |
9388 | * @dev_id: The device context pointer. | |
9389 | * | |
9390 | * This function is the device-level interrupt handler to device with SLI-4 | |
9391 | * interface spec, called from the PCI layer when either MSI or Pin-IRQ | |
9392 | * interrupt mode is enabled and there is an event in the HBA which requires | |
9393 | * driver attention. This function invokes the slow-path interrupt attention | |
9394 | * handling function and fast-path interrupt attention handling function in | |
9395 | * turn to process the relevant HBA attention events. This function is called | |
9396 | * without any lock held. It gets the hbalock to access and update SLI data | |
9397 | * structures. | |
9398 | * | |
9399 | * This function returns IRQ_HANDLED when interrupt is handled, else it | |
9400 | * returns IRQ_NONE. | |
9401 | **/ | |
9402 | irqreturn_t | |
9403 | lpfc_sli4_intr_handler(int irq, void *dev_id) | |
9404 | { | |
9405 | struct lpfc_hba *phba; | |
9406 | irqreturn_t sp_irq_rc, fp_irq_rc; | |
9407 | bool fp_handled = false; | |
9408 | uint32_t fcp_eqidx; | |
9409 | ||
9410 | /* Get the driver's phba structure from the dev_id */ | |
9411 | phba = (struct lpfc_hba *)dev_id; | |
9412 | ||
9413 | if (unlikely(!phba)) | |
9414 | return IRQ_NONE; | |
9415 | ||
9416 | /* | |
9417 | * Invokes slow-path host attention interrupt handling as appropriate. | |
9418 | */ | |
9419 | sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id); | |
9420 | ||
9421 | /* | |
9422 | * Invoke fast-path host attention interrupt handling as appropriate. | |
9423 | */ | |
9424 | for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { | |
9425 | fp_irq_rc = lpfc_sli4_fp_intr_handler(irq, | |
9426 | &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]); | |
9427 | if (fp_irq_rc == IRQ_HANDLED) | |
9428 | fp_handled |= true; | |
9429 | } | |
9430 | ||
9431 | return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc; | |
9432 | } /* lpfc_sli4_intr_handler */ | |
9433 | ||
9434 | /** | |
9435 | * lpfc_sli4_queue_free - free a queue structure and associated memory | |
9436 | * @queue: The queue structure to free. | |
9437 | * | |
9438 | * This function frees a queue structure and the DMAable memeory used for | |
9439 | * the host resident queue. This function must be called after destroying the | |
9440 | * queue on the HBA. | |
9441 | **/ | |
9442 | void | |
9443 | lpfc_sli4_queue_free(struct lpfc_queue *queue) | |
9444 | { | |
9445 | struct lpfc_dmabuf *dmabuf; | |
9446 | ||
9447 | if (!queue) | |
9448 | return; | |
9449 | ||
9450 | while (!list_empty(&queue->page_list)) { | |
9451 | list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf, | |
9452 | list); | |
9453 | dma_free_coherent(&queue->phba->pcidev->dev, PAGE_SIZE, | |
9454 | dmabuf->virt, dmabuf->phys); | |
9455 | kfree(dmabuf); | |
9456 | } | |
9457 | kfree(queue); | |
9458 | return; | |
9459 | } | |
9460 | ||
9461 | /** | |
9462 | * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure | |
9463 | * @phba: The HBA that this queue is being created on. | |
9464 | * @entry_size: The size of each queue entry for this queue. | |
9465 | * @entry count: The number of entries that this queue will handle. | |
9466 | * | |
9467 | * This function allocates a queue structure and the DMAable memory used for | |
9468 | * the host resident queue. This function must be called before creating the | |
9469 | * queue on the HBA. | |
9470 | **/ | |
9471 | struct lpfc_queue * | |
9472 | lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size, | |
9473 | uint32_t entry_count) | |
9474 | { | |
9475 | struct lpfc_queue *queue; | |
9476 | struct lpfc_dmabuf *dmabuf; | |
9477 | int x, total_qe_count; | |
9478 | void *dma_pointer; | |
9479 | ||
9480 | ||
9481 | queue = kzalloc(sizeof(struct lpfc_queue) + | |
9482 | (sizeof(union sli4_qe) * entry_count), GFP_KERNEL); | |
9483 | if (!queue) | |
9484 | return NULL; | |
9485 | queue->page_count = (PAGE_ALIGN(entry_size * entry_count))/PAGE_SIZE; | |
9486 | INIT_LIST_HEAD(&queue->list); | |
9487 | INIT_LIST_HEAD(&queue->page_list); | |
9488 | INIT_LIST_HEAD(&queue->child_list); | |
9489 | for (x = 0, total_qe_count = 0; x < queue->page_count; x++) { | |
9490 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
9491 | if (!dmabuf) | |
9492 | goto out_fail; | |
9493 | dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, | |
9494 | PAGE_SIZE, &dmabuf->phys, | |
9495 | GFP_KERNEL); | |
9496 | if (!dmabuf->virt) { | |
9497 | kfree(dmabuf); | |
9498 | goto out_fail; | |
9499 | } | |
d11e31dd | 9500 | memset(dmabuf->virt, 0, PAGE_SIZE); |
4f774513 JS |
9501 | dmabuf->buffer_tag = x; |
9502 | list_add_tail(&dmabuf->list, &queue->page_list); | |
9503 | /* initialize queue's entry array */ | |
9504 | dma_pointer = dmabuf->virt; | |
9505 | for (; total_qe_count < entry_count && | |
9506 | dma_pointer < (PAGE_SIZE + dmabuf->virt); | |
9507 | total_qe_count++, dma_pointer += entry_size) { | |
9508 | queue->qe[total_qe_count].address = dma_pointer; | |
9509 | } | |
9510 | } | |
9511 | queue->entry_size = entry_size; | |
9512 | queue->entry_count = entry_count; | |
9513 | queue->phba = phba; | |
9514 | ||
9515 | return queue; | |
9516 | out_fail: | |
9517 | lpfc_sli4_queue_free(queue); | |
9518 | return NULL; | |
9519 | } | |
9520 | ||
9521 | /** | |
9522 | * lpfc_eq_create - Create an Event Queue on the HBA | |
9523 | * @phba: HBA structure that indicates port to create a queue on. | |
9524 | * @eq: The queue structure to use to create the event queue. | |
9525 | * @imax: The maximum interrupt per second limit. | |
9526 | * | |
9527 | * This function creates an event queue, as detailed in @eq, on a port, | |
9528 | * described by @phba by sending an EQ_CREATE mailbox command to the HBA. | |
9529 | * | |
9530 | * The @phba struct is used to send mailbox command to HBA. The @eq struct | |
9531 | * is used to get the entry count and entry size that are necessary to | |
9532 | * determine the number of pages to allocate and use for this queue. This | |
9533 | * function will send the EQ_CREATE mailbox command to the HBA to setup the | |
9534 | * event queue. This function is asynchronous and will wait for the mailbox | |
9535 | * command to finish before continuing. | |
9536 | * | |
9537 | * On success this function will return a zero. If unable to allocate enough | |
9538 | * memory this function will return ENOMEM. If the queue create mailbox command | |
9539 | * fails this function will return ENXIO. | |
9540 | **/ | |
9541 | uint32_t | |
9542 | lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax) | |
9543 | { | |
9544 | struct lpfc_mbx_eq_create *eq_create; | |
9545 | LPFC_MBOXQ_t *mbox; | |
9546 | int rc, length, status = 0; | |
9547 | struct lpfc_dmabuf *dmabuf; | |
9548 | uint32_t shdr_status, shdr_add_status; | |
9549 | union lpfc_sli4_cfg_shdr *shdr; | |
9550 | uint16_t dmult; | |
9551 | ||
9552 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
9553 | if (!mbox) | |
9554 | return -ENOMEM; | |
9555 | length = (sizeof(struct lpfc_mbx_eq_create) - | |
9556 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9557 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
9558 | LPFC_MBOX_OPCODE_EQ_CREATE, | |
9559 | length, LPFC_SLI4_MBX_EMBED); | |
9560 | eq_create = &mbox->u.mqe.un.eq_create; | |
9561 | bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request, | |
9562 | eq->page_count); | |
9563 | bf_set(lpfc_eq_context_size, &eq_create->u.request.context, | |
9564 | LPFC_EQE_SIZE); | |
9565 | bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1); | |
9566 | /* Calculate delay multiper from maximum interrupt per second */ | |
9567 | dmult = LPFC_DMULT_CONST/imax - 1; | |
9568 | bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context, | |
9569 | dmult); | |
9570 | switch (eq->entry_count) { | |
9571 | default: | |
9572 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9573 | "0360 Unsupported EQ count. (%d)\n", | |
9574 | eq->entry_count); | |
9575 | if (eq->entry_count < 256) | |
9576 | return -EINVAL; | |
9577 | /* otherwise default to smallest count (drop through) */ | |
9578 | case 256: | |
9579 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9580 | LPFC_EQ_CNT_256); | |
9581 | break; | |
9582 | case 512: | |
9583 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9584 | LPFC_EQ_CNT_512); | |
9585 | break; | |
9586 | case 1024: | |
9587 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9588 | LPFC_EQ_CNT_1024); | |
9589 | break; | |
9590 | case 2048: | |
9591 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9592 | LPFC_EQ_CNT_2048); | |
9593 | break; | |
9594 | case 4096: | |
9595 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9596 | LPFC_EQ_CNT_4096); | |
9597 | break; | |
9598 | } | |
9599 | list_for_each_entry(dmabuf, &eq->page_list, list) { | |
9600 | eq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
9601 | putPaddrLow(dmabuf->phys); | |
9602 | eq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9603 | putPaddrHigh(dmabuf->phys); | |
9604 | } | |
9605 | mbox->vport = phba->pport; | |
9606 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
9607 | mbox->context1 = NULL; | |
9608 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
9609 | shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr; | |
9610 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9611 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9612 | if (shdr_status || shdr_add_status || rc) { | |
9613 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9614 | "2500 EQ_CREATE mailbox failed with " | |
9615 | "status x%x add_status x%x, mbx status x%x\n", | |
9616 | shdr_status, shdr_add_status, rc); | |
9617 | status = -ENXIO; | |
9618 | } | |
9619 | eq->type = LPFC_EQ; | |
9620 | eq->subtype = LPFC_NONE; | |
9621 | eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response); | |
9622 | if (eq->queue_id == 0xFFFF) | |
9623 | status = -ENXIO; | |
9624 | eq->host_index = 0; | |
9625 | eq->hba_index = 0; | |
9626 | ||
8fa38513 | 9627 | mempool_free(mbox, phba->mbox_mem_pool); |
4f774513 JS |
9628 | return status; |
9629 | } | |
9630 | ||
9631 | /** | |
9632 | * lpfc_cq_create - Create a Completion Queue on the HBA | |
9633 | * @phba: HBA structure that indicates port to create a queue on. | |
9634 | * @cq: The queue structure to use to create the completion queue. | |
9635 | * @eq: The event queue to bind this completion queue to. | |
9636 | * | |
9637 | * This function creates a completion queue, as detailed in @wq, on a port, | |
9638 | * described by @phba by sending a CQ_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. The @eq | |
9643 | * is used to indicate which event queue to bind this completion queue to. This | |
9644 | * function will send the CQ_CREATE mailbox command to the HBA to setup the | |
9645 | * completion queue. This function is asynchronous and will wait for the mailbox | |
9646 | * command to finish before continuing. | |
9647 | * | |
9648 | * On success this function will return a zero. If unable to allocate enough | |
9649 | * memory this function will return ENOMEM. If the queue create mailbox command | |
9650 | * fails this function will return ENXIO. | |
9651 | **/ | |
9652 | uint32_t | |
9653 | lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq, | |
9654 | struct lpfc_queue *eq, uint32_t type, uint32_t subtype) | |
9655 | { | |
9656 | struct lpfc_mbx_cq_create *cq_create; | |
9657 | struct lpfc_dmabuf *dmabuf; | |
9658 | LPFC_MBOXQ_t *mbox; | |
9659 | int rc, length, status = 0; | |
9660 | uint32_t shdr_status, shdr_add_status; | |
9661 | union lpfc_sli4_cfg_shdr *shdr; | |
9662 | ||
9663 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
9664 | if (!mbox) | |
9665 | return -ENOMEM; | |
9666 | length = (sizeof(struct lpfc_mbx_cq_create) - | |
9667 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9668 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
9669 | LPFC_MBOX_OPCODE_CQ_CREATE, | |
9670 | length, LPFC_SLI4_MBX_EMBED); | |
9671 | cq_create = &mbox->u.mqe.un.cq_create; | |
9672 | bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request, | |
9673 | cq->page_count); | |
9674 | bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1); | |
9675 | bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1); | |
9676 | bf_set(lpfc_cq_eq_id, &cq_create->u.request.context, eq->queue_id); | |
9677 | switch (cq->entry_count) { | |
9678 | default: | |
9679 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9680 | "0361 Unsupported CQ count. (%d)\n", | |
9681 | cq->entry_count); | |
9682 | if (cq->entry_count < 256) | |
9683 | return -EINVAL; | |
9684 | /* otherwise default to smallest count (drop through) */ | |
9685 | case 256: | |
9686 | bf_set(lpfc_cq_context_count, &cq_create->u.request.context, | |
9687 | LPFC_CQ_CNT_256); | |
9688 | break; | |
9689 | case 512: | |
9690 | bf_set(lpfc_cq_context_count, &cq_create->u.request.context, | |
9691 | LPFC_CQ_CNT_512); | |
9692 | break; | |
9693 | case 1024: | |
9694 | bf_set(lpfc_cq_context_count, &cq_create->u.request.context, | |
9695 | LPFC_CQ_CNT_1024); | |
9696 | break; | |
9697 | } | |
9698 | list_for_each_entry(dmabuf, &cq->page_list, list) { | |
9699 | cq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
9700 | putPaddrLow(dmabuf->phys); | |
9701 | cq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9702 | putPaddrHigh(dmabuf->phys); | |
9703 | } | |
9704 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
9705 | ||
9706 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
9707 | shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr; | |
9708 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9709 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9710 | if (shdr_status || shdr_add_status || rc) { | |
9711 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9712 | "2501 CQ_CREATE mailbox failed with " | |
9713 | "status x%x add_status x%x, mbx status x%x\n", | |
9714 | shdr_status, shdr_add_status, rc); | |
9715 | status = -ENXIO; | |
9716 | goto out; | |
9717 | } | |
9718 | cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response); | |
9719 | if (cq->queue_id == 0xFFFF) { | |
9720 | status = -ENXIO; | |
9721 | goto out; | |
9722 | } | |
9723 | /* link the cq onto the parent eq child list */ | |
9724 | list_add_tail(&cq->list, &eq->child_list); | |
9725 | /* Set up completion queue's type and subtype */ | |
9726 | cq->type = type; | |
9727 | cq->subtype = subtype; | |
9728 | cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response); | |
9729 | cq->host_index = 0; | |
9730 | cq->hba_index = 0; | |
4f774513 | 9731 | |
8fa38513 JS |
9732 | out: |
9733 | mempool_free(mbox, phba->mbox_mem_pool); | |
4f774513 JS |
9734 | return status; |
9735 | } | |
9736 | ||
04c68496 JS |
9737 | /** |
9738 | * lpfc_mq_create - Create a mailbox Queue on the HBA | |
9739 | * @phba: HBA structure that indicates port to create a queue on. | |
9740 | * @mq: The queue structure to use to create the mailbox queue. | |
9741 | * | |
9742 | * This function creates a mailbox queue, as detailed in @mq, on a port, | |
9743 | * described by @phba by sending a MQ_CREATE mailbox command to the HBA. | |
9744 | * | |
9745 | * The @phba struct is used to send mailbox command to HBA. The @cq struct | |
9746 | * is used to get the entry count and entry size that are necessary to | |
9747 | * determine the number of pages to allocate and use for this queue. This | |
9748 | * function will send the MQ_CREATE mailbox command to the HBA to setup the | |
9749 | * mailbox queue. This function is asynchronous and will wait for the mailbox | |
9750 | * command to finish before continuing. | |
9751 | * | |
9752 | * On success this function will return a zero. If unable to allocate enough | |
9753 | * memory this function will return ENOMEM. If the queue create mailbox command | |
9754 | * fails this function will return ENXIO. | |
9755 | **/ | |
9756 | uint32_t | |
9757 | lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq, | |
9758 | struct lpfc_queue *cq, uint32_t subtype) | |
9759 | { | |
9760 | struct lpfc_mbx_mq_create *mq_create; | |
9761 | struct lpfc_dmabuf *dmabuf; | |
9762 | LPFC_MBOXQ_t *mbox; | |
9763 | int rc, length, status = 0; | |
9764 | uint32_t shdr_status, shdr_add_status; | |
9765 | union lpfc_sli4_cfg_shdr *shdr; | |
9766 | ||
9767 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
9768 | if (!mbox) | |
9769 | return -ENOMEM; | |
9770 | length = (sizeof(struct lpfc_mbx_mq_create) - | |
9771 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9772 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
9773 | LPFC_MBOX_OPCODE_MQ_CREATE, | |
9774 | length, LPFC_SLI4_MBX_EMBED); | |
9775 | mq_create = &mbox->u.mqe.un.mq_create; | |
9776 | bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request, | |
9777 | mq->page_count); | |
9778 | bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context, | |
9779 | cq->queue_id); | |
9780 | bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1); | |
9781 | switch (mq->entry_count) { | |
9782 | default: | |
9783 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9784 | "0362 Unsupported MQ count. (%d)\n", | |
9785 | mq->entry_count); | |
9786 | if (mq->entry_count < 16) | |
9787 | return -EINVAL; | |
9788 | /* otherwise default to smallest count (drop through) */ | |
9789 | case 16: | |
9790 | bf_set(lpfc_mq_context_count, &mq_create->u.request.context, | |
9791 | LPFC_MQ_CNT_16); | |
9792 | break; | |
9793 | case 32: | |
9794 | bf_set(lpfc_mq_context_count, &mq_create->u.request.context, | |
9795 | LPFC_MQ_CNT_32); | |
9796 | break; | |
9797 | case 64: | |
9798 | bf_set(lpfc_mq_context_count, &mq_create->u.request.context, | |
9799 | LPFC_MQ_CNT_64); | |
9800 | break; | |
9801 | case 128: | |
9802 | bf_set(lpfc_mq_context_count, &mq_create->u.request.context, | |
9803 | LPFC_MQ_CNT_128); | |
9804 | break; | |
9805 | } | |
9806 | list_for_each_entry(dmabuf, &mq->page_list, list) { | |
9807 | mq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
9808 | putPaddrLow(dmabuf->phys); | |
9809 | mq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9810 | putPaddrHigh(dmabuf->phys); | |
9811 | } | |
9812 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
9813 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
9814 | shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr; | |
9815 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9816 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9817 | if (shdr_status || shdr_add_status || rc) { | |
9818 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9819 | "2502 MQ_CREATE mailbox failed with " | |
9820 | "status x%x add_status x%x, mbx status x%x\n", | |
9821 | shdr_status, shdr_add_status, rc); | |
9822 | status = -ENXIO; | |
9823 | goto out; | |
9824 | } | |
9825 | mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id, &mq_create->u.response); | |
9826 | if (mq->queue_id == 0xFFFF) { | |
9827 | status = -ENXIO; | |
9828 | goto out; | |
9829 | } | |
9830 | mq->type = LPFC_MQ; | |
9831 | mq->subtype = subtype; | |
9832 | mq->host_index = 0; | |
9833 | mq->hba_index = 0; | |
9834 | ||
9835 | /* link the mq onto the parent cq child list */ | |
9836 | list_add_tail(&mq->list, &cq->child_list); | |
9837 | out: | |
8fa38513 | 9838 | mempool_free(mbox, phba->mbox_mem_pool); |
04c68496 JS |
9839 | return status; |
9840 | } | |
9841 | ||
4f774513 JS |
9842 | /** |
9843 | * lpfc_wq_create - Create a Work Queue on the HBA | |
9844 | * @phba: HBA structure that indicates port to create a queue on. | |
9845 | * @wq: The queue structure to use to create the work queue. | |
9846 | * @cq: The completion queue to bind this work queue to. | |
9847 | * @subtype: The subtype of the work queue indicating its functionality. | |
9848 | * | |
9849 | * This function creates a work queue, as detailed in @wq, on a port, described | |
9850 | * by @phba by sending a WQ_CREATE mailbox command to the HBA. | |
9851 | * | |
9852 | * The @phba struct is used to send mailbox command to HBA. The @wq struct | |
9853 | * is used to get the entry count and entry size that are necessary to | |
9854 | * determine the number of pages to allocate and use for this queue. The @cq | |
9855 | * is used to indicate which completion queue to bind this work queue to. This | |
9856 | * function will send the WQ_CREATE mailbox command to the HBA to setup the | |
9857 | * work queue. This function is asynchronous and will wait for the mailbox | |
9858 | * command to finish before continuing. | |
9859 | * | |
9860 | * On success this function will return a zero. If unable to allocate enough | |
9861 | * memory this function will return ENOMEM. If the queue create mailbox command | |
9862 | * fails this function will return ENXIO. | |
9863 | **/ | |
9864 | uint32_t | |
9865 | lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq, | |
9866 | struct lpfc_queue *cq, uint32_t subtype) | |
9867 | { | |
9868 | struct lpfc_mbx_wq_create *wq_create; | |
9869 | struct lpfc_dmabuf *dmabuf; | |
9870 | LPFC_MBOXQ_t *mbox; | |
9871 | int rc, length, status = 0; | |
9872 | uint32_t shdr_status, shdr_add_status; | |
9873 | union lpfc_sli4_cfg_shdr *shdr; | |
9874 | ||
9875 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
9876 | if (!mbox) | |
9877 | return -ENOMEM; | |
9878 | length = (sizeof(struct lpfc_mbx_wq_create) - | |
9879 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9880 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
9881 | LPFC_MBOX_OPCODE_FCOE_WQ_CREATE, | |
9882 | length, LPFC_SLI4_MBX_EMBED); | |
9883 | wq_create = &mbox->u.mqe.un.wq_create; | |
9884 | bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request, | |
9885 | wq->page_count); | |
9886 | bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request, | |
9887 | cq->queue_id); | |
9888 | list_for_each_entry(dmabuf, &wq->page_list, list) { | |
9889 | wq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
9890 | putPaddrLow(dmabuf->phys); | |
9891 | wq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9892 | putPaddrHigh(dmabuf->phys); | |
9893 | } | |
9894 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
9895 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
9896 | shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr; | |
9897 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9898 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9899 | if (shdr_status || shdr_add_status || rc) { | |
9900 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9901 | "2503 WQ_CREATE mailbox failed with " | |
9902 | "status x%x add_status x%x, mbx status x%x\n", | |
9903 | shdr_status, shdr_add_status, rc); | |
9904 | status = -ENXIO; | |
9905 | goto out; | |
9906 | } | |
9907 | wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response); | |
9908 | if (wq->queue_id == 0xFFFF) { | |
9909 | status = -ENXIO; | |
9910 | goto out; | |
9911 | } | |
9912 | wq->type = LPFC_WQ; | |
9913 | wq->subtype = subtype; | |
9914 | wq->host_index = 0; | |
9915 | wq->hba_index = 0; | |
9916 | ||
9917 | /* link the wq onto the parent cq child list */ | |
9918 | list_add_tail(&wq->list, &cq->child_list); | |
9919 | out: | |
8fa38513 | 9920 | mempool_free(mbox, phba->mbox_mem_pool); |
4f774513 JS |
9921 | return status; |
9922 | } | |
9923 | ||
9924 | /** | |
9925 | * lpfc_rq_create - Create a Receive Queue on the HBA | |
9926 | * @phba: HBA structure that indicates port to create a queue on. | |
9927 | * @hrq: The queue structure to use to create the header receive queue. | |
9928 | * @drq: The queue structure to use to create the data receive queue. | |
9929 | * @cq: The completion queue to bind this work queue to. | |
9930 | * | |
9931 | * This function creates a receive buffer queue pair , as detailed in @hrq and | |
9932 | * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command | |
9933 | * to the HBA. | |
9934 | * | |
9935 | * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq | |
9936 | * struct is used to get the entry count that is necessary to determine the | |
9937 | * number of pages to use for this queue. The @cq is used to indicate which | |
9938 | * completion queue to bind received buffers that are posted to these queues to. | |
9939 | * This function will send the RQ_CREATE mailbox command to the HBA to setup the | |
9940 | * receive queue pair. This function is asynchronous and will wait for the | |
9941 | * mailbox command to finish before continuing. | |
9942 | * | |
9943 | * On success this function will return a zero. If unable to allocate enough | |
9944 | * memory this function will return ENOMEM. If the queue create mailbox command | |
9945 | * fails this function will return ENXIO. | |
9946 | **/ | |
9947 | uint32_t | |
9948 | lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq, | |
9949 | struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype) | |
9950 | { | |
9951 | struct lpfc_mbx_rq_create *rq_create; | |
9952 | struct lpfc_dmabuf *dmabuf; | |
9953 | LPFC_MBOXQ_t *mbox; | |
9954 | int rc, length, status = 0; | |
9955 | uint32_t shdr_status, shdr_add_status; | |
9956 | union lpfc_sli4_cfg_shdr *shdr; | |
9957 | ||
9958 | if (hrq->entry_count != drq->entry_count) | |
9959 | return -EINVAL; | |
9960 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
9961 | if (!mbox) | |
9962 | return -ENOMEM; | |
9963 | length = (sizeof(struct lpfc_mbx_rq_create) - | |
9964 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9965 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
9966 | LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, | |
9967 | length, LPFC_SLI4_MBX_EMBED); | |
9968 | rq_create = &mbox->u.mqe.un.rq_create; | |
9969 | switch (hrq->entry_count) { | |
9970 | default: | |
9971 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9972 | "2535 Unsupported RQ count. (%d)\n", | |
9973 | hrq->entry_count); | |
9974 | if (hrq->entry_count < 512) | |
9975 | return -EINVAL; | |
9976 | /* otherwise default to smallest count (drop through) */ | |
9977 | case 512: | |
9978 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
9979 | LPFC_RQ_RING_SIZE_512); | |
9980 | break; | |
9981 | case 1024: | |
9982 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
9983 | LPFC_RQ_RING_SIZE_1024); | |
9984 | break; | |
9985 | case 2048: | |
9986 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
9987 | LPFC_RQ_RING_SIZE_2048); | |
9988 | break; | |
9989 | case 4096: | |
9990 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
9991 | LPFC_RQ_RING_SIZE_4096); | |
9992 | break; | |
9993 | } | |
9994 | bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context, | |
9995 | cq->queue_id); | |
9996 | bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request, | |
9997 | hrq->page_count); | |
9998 | bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context, | |
9999 | LPFC_HDR_BUF_SIZE); | |
10000 | list_for_each_entry(dmabuf, &hrq->page_list, list) { | |
10001 | rq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
10002 | putPaddrLow(dmabuf->phys); | |
10003 | rq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
10004 | putPaddrHigh(dmabuf->phys); | |
10005 | } | |
10006 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10007 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10008 | shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr; | |
10009 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10010 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10011 | if (shdr_status || shdr_add_status || rc) { | |
10012 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10013 | "2504 RQ_CREATE mailbox failed with " | |
10014 | "status x%x add_status x%x, mbx status x%x\n", | |
10015 | shdr_status, shdr_add_status, rc); | |
10016 | status = -ENXIO; | |
10017 | goto out; | |
10018 | } | |
10019 | hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response); | |
10020 | if (hrq->queue_id == 0xFFFF) { | |
10021 | status = -ENXIO; | |
10022 | goto out; | |
10023 | } | |
10024 | hrq->type = LPFC_HRQ; | |
10025 | hrq->subtype = subtype; | |
10026 | hrq->host_index = 0; | |
10027 | hrq->hba_index = 0; | |
10028 | ||
10029 | /* now create the data queue */ | |
10030 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10031 | LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, | |
10032 | length, LPFC_SLI4_MBX_EMBED); | |
10033 | switch (drq->entry_count) { | |
10034 | default: | |
10035 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10036 | "2536 Unsupported RQ count. (%d)\n", | |
10037 | drq->entry_count); | |
10038 | if (drq->entry_count < 512) | |
10039 | return -EINVAL; | |
10040 | /* otherwise default to smallest count (drop through) */ | |
10041 | case 512: | |
10042 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
10043 | LPFC_RQ_RING_SIZE_512); | |
10044 | break; | |
10045 | case 1024: | |
10046 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
10047 | LPFC_RQ_RING_SIZE_1024); | |
10048 | break; | |
10049 | case 2048: | |
10050 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
10051 | LPFC_RQ_RING_SIZE_2048); | |
10052 | break; | |
10053 | case 4096: | |
10054 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
10055 | LPFC_RQ_RING_SIZE_4096); | |
10056 | break; | |
10057 | } | |
10058 | bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context, | |
10059 | cq->queue_id); | |
10060 | bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request, | |
10061 | drq->page_count); | |
10062 | bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context, | |
10063 | LPFC_DATA_BUF_SIZE); | |
10064 | list_for_each_entry(dmabuf, &drq->page_list, list) { | |
10065 | rq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
10066 | putPaddrLow(dmabuf->phys); | |
10067 | rq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
10068 | putPaddrHigh(dmabuf->phys); | |
10069 | } | |
10070 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10071 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10072 | shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr; | |
10073 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10074 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10075 | if (shdr_status || shdr_add_status || rc) { | |
10076 | status = -ENXIO; | |
10077 | goto out; | |
10078 | } | |
10079 | drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response); | |
10080 | if (drq->queue_id == 0xFFFF) { | |
10081 | status = -ENXIO; | |
10082 | goto out; | |
10083 | } | |
10084 | drq->type = LPFC_DRQ; | |
10085 | drq->subtype = subtype; | |
10086 | drq->host_index = 0; | |
10087 | drq->hba_index = 0; | |
10088 | ||
10089 | /* link the header and data RQs onto the parent cq child list */ | |
10090 | list_add_tail(&hrq->list, &cq->child_list); | |
10091 | list_add_tail(&drq->list, &cq->child_list); | |
10092 | ||
10093 | out: | |
8fa38513 | 10094 | mempool_free(mbox, phba->mbox_mem_pool); |
4f774513 JS |
10095 | return status; |
10096 | } | |
10097 | ||
10098 | /** | |
10099 | * lpfc_eq_destroy - Destroy an event Queue on the HBA | |
10100 | * @eq: The queue structure associated with the queue to destroy. | |
10101 | * | |
10102 | * This function destroys a queue, as detailed in @eq by sending an mailbox | |
10103 | * command, specific to the type of queue, to the HBA. | |
10104 | * | |
10105 | * The @eq struct is used to get the queue ID of the queue to destroy. | |
10106 | * | |
10107 | * On success this function will return a zero. If the queue destroy mailbox | |
10108 | * command fails this function will return ENXIO. | |
10109 | **/ | |
10110 | uint32_t | |
10111 | lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq) | |
10112 | { | |
10113 | LPFC_MBOXQ_t *mbox; | |
10114 | int rc, length, status = 0; | |
10115 | uint32_t shdr_status, shdr_add_status; | |
10116 | union lpfc_sli4_cfg_shdr *shdr; | |
10117 | ||
10118 | if (!eq) | |
10119 | return -ENODEV; | |
10120 | mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL); | |
10121 | if (!mbox) | |
10122 | return -ENOMEM; | |
10123 | length = (sizeof(struct lpfc_mbx_eq_destroy) - | |
10124 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10125 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
10126 | LPFC_MBOX_OPCODE_EQ_DESTROY, | |
10127 | length, LPFC_SLI4_MBX_EMBED); | |
10128 | bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request, | |
10129 | eq->queue_id); | |
10130 | mbox->vport = eq->phba->pport; | |
10131 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10132 | ||
10133 | rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL); | |
10134 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10135 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10136 | &mbox->u.mqe.un.eq_destroy.header.cfg_shdr; | |
10137 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10138 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10139 | if (shdr_status || shdr_add_status || rc) { | |
10140 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10141 | "2505 EQ_DESTROY mailbox failed with " | |
10142 | "status x%x add_status x%x, mbx status x%x\n", | |
10143 | shdr_status, shdr_add_status, rc); | |
10144 | status = -ENXIO; | |
10145 | } | |
10146 | ||
10147 | /* Remove eq from any list */ | |
10148 | list_del_init(&eq->list); | |
8fa38513 | 10149 | mempool_free(mbox, eq->phba->mbox_mem_pool); |
4f774513 JS |
10150 | return status; |
10151 | } | |
10152 | ||
10153 | /** | |
10154 | * lpfc_cq_destroy - Destroy a Completion Queue on the HBA | |
10155 | * @cq: The queue structure associated with the queue to destroy. | |
10156 | * | |
10157 | * This function destroys a queue, as detailed in @cq by sending an mailbox | |
10158 | * command, specific to the type of queue, to the HBA. | |
10159 | * | |
10160 | * The @cq struct is used to get the queue ID of the queue to destroy. | |
10161 | * | |
10162 | * On success this function will return a zero. If the queue destroy mailbox | |
10163 | * command fails this function will return ENXIO. | |
10164 | **/ | |
10165 | uint32_t | |
10166 | lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq) | |
10167 | { | |
10168 | LPFC_MBOXQ_t *mbox; | |
10169 | int rc, length, status = 0; | |
10170 | uint32_t shdr_status, shdr_add_status; | |
10171 | union lpfc_sli4_cfg_shdr *shdr; | |
10172 | ||
10173 | if (!cq) | |
10174 | return -ENODEV; | |
10175 | mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL); | |
10176 | if (!mbox) | |
10177 | return -ENOMEM; | |
10178 | length = (sizeof(struct lpfc_mbx_cq_destroy) - | |
10179 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10180 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
10181 | LPFC_MBOX_OPCODE_CQ_DESTROY, | |
10182 | length, LPFC_SLI4_MBX_EMBED); | |
10183 | bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request, | |
10184 | cq->queue_id); | |
10185 | mbox->vport = cq->phba->pport; | |
10186 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10187 | rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL); | |
10188 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10189 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10190 | &mbox->u.mqe.un.wq_create.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 | "2506 CQ_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 cq from any list */ | |
10201 | list_del_init(&cq->list); | |
8fa38513 | 10202 | mempool_free(mbox, cq->phba->mbox_mem_pool); |
4f774513 JS |
10203 | return status; |
10204 | } | |
10205 | ||
04c68496 JS |
10206 | /** |
10207 | * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA | |
10208 | * @qm: The queue structure associated with the queue to destroy. | |
10209 | * | |
10210 | * This function destroys a queue, as detailed in @mq by sending an mailbox | |
10211 | * command, specific to the type of queue, to the HBA. | |
10212 | * | |
10213 | * The @mq 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_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq) | |
10220 | { | |
10221 | LPFC_MBOXQ_t *mbox; | |
10222 | int rc, length, status = 0; | |
10223 | uint32_t shdr_status, shdr_add_status; | |
10224 | union lpfc_sli4_cfg_shdr *shdr; | |
10225 | ||
10226 | if (!mq) | |
10227 | return -ENODEV; | |
10228 | mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL); | |
10229 | if (!mbox) | |
10230 | return -ENOMEM; | |
10231 | length = (sizeof(struct lpfc_mbx_mq_destroy) - | |
10232 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10233 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
10234 | LPFC_MBOX_OPCODE_MQ_DESTROY, | |
10235 | length, LPFC_SLI4_MBX_EMBED); | |
10236 | bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request, | |
10237 | mq->queue_id); | |
10238 | mbox->vport = mq->phba->pport; | |
10239 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10240 | rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL); | |
10241 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10242 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10243 | &mbox->u.mqe.un.mq_destroy.header.cfg_shdr; | |
10244 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10245 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10246 | if (shdr_status || shdr_add_status || rc) { | |
10247 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10248 | "2507 MQ_DESTROY mailbox failed with " | |
10249 | "status x%x add_status x%x, mbx status x%x\n", | |
10250 | shdr_status, shdr_add_status, rc); | |
10251 | status = -ENXIO; | |
10252 | } | |
10253 | /* Remove mq from any list */ | |
10254 | list_del_init(&mq->list); | |
8fa38513 | 10255 | mempool_free(mbox, mq->phba->mbox_mem_pool); |
04c68496 JS |
10256 | return status; |
10257 | } | |
10258 | ||
4f774513 JS |
10259 | /** |
10260 | * lpfc_wq_destroy - Destroy a Work Queue on the HBA | |
10261 | * @wq: The queue structure associated with the queue to destroy. | |
10262 | * | |
10263 | * This function destroys a queue, as detailed in @wq by sending an mailbox | |
10264 | * command, specific to the type of queue, to the HBA. | |
10265 | * | |
10266 | * The @wq struct is used to get the queue ID of the queue to destroy. | |
10267 | * | |
10268 | * On success this function will return a zero. If the queue destroy mailbox | |
10269 | * command fails this function will return ENXIO. | |
10270 | **/ | |
10271 | uint32_t | |
10272 | lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq) | |
10273 | { | |
10274 | LPFC_MBOXQ_t *mbox; | |
10275 | int rc, length, status = 0; | |
10276 | uint32_t shdr_status, shdr_add_status; | |
10277 | union lpfc_sli4_cfg_shdr *shdr; | |
10278 | ||
10279 | if (!wq) | |
10280 | return -ENODEV; | |
10281 | mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL); | |
10282 | if (!mbox) | |
10283 | return -ENOMEM; | |
10284 | length = (sizeof(struct lpfc_mbx_wq_destroy) - | |
10285 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10286 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10287 | LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY, | |
10288 | length, LPFC_SLI4_MBX_EMBED); | |
10289 | bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request, | |
10290 | wq->queue_id); | |
10291 | mbox->vport = wq->phba->pport; | |
10292 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10293 | rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL); | |
10294 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10295 | &mbox->u.mqe.un.wq_destroy.header.cfg_shdr; | |
10296 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10297 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10298 | if (shdr_status || shdr_add_status || rc) { | |
10299 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10300 | "2508 WQ_DESTROY mailbox failed with " | |
10301 | "status x%x add_status x%x, mbx status x%x\n", | |
10302 | shdr_status, shdr_add_status, rc); | |
10303 | status = -ENXIO; | |
10304 | } | |
10305 | /* Remove wq from any list */ | |
10306 | list_del_init(&wq->list); | |
8fa38513 | 10307 | mempool_free(mbox, wq->phba->mbox_mem_pool); |
4f774513 JS |
10308 | return status; |
10309 | } | |
10310 | ||
10311 | /** | |
10312 | * lpfc_rq_destroy - Destroy a Receive Queue on the HBA | |
10313 | * @rq: The queue structure associated with the queue to destroy. | |
10314 | * | |
10315 | * This function destroys a queue, as detailed in @rq by sending an mailbox | |
10316 | * command, specific to the type of queue, to the HBA. | |
10317 | * | |
10318 | * The @rq struct is used to get the queue ID of the queue to destroy. | |
10319 | * | |
10320 | * On success this function will return a zero. If the queue destroy mailbox | |
10321 | * command fails this function will return ENXIO. | |
10322 | **/ | |
10323 | uint32_t | |
10324 | lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq, | |
10325 | struct lpfc_queue *drq) | |
10326 | { | |
10327 | LPFC_MBOXQ_t *mbox; | |
10328 | int rc, length, status = 0; | |
10329 | uint32_t shdr_status, shdr_add_status; | |
10330 | union lpfc_sli4_cfg_shdr *shdr; | |
10331 | ||
10332 | if (!hrq || !drq) | |
10333 | return -ENODEV; | |
10334 | mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL); | |
10335 | if (!mbox) | |
10336 | return -ENOMEM; | |
10337 | length = (sizeof(struct lpfc_mbx_rq_destroy) - | |
10338 | sizeof(struct mbox_header)); | |
10339 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10340 | LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY, | |
10341 | length, LPFC_SLI4_MBX_EMBED); | |
10342 | bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request, | |
10343 | hrq->queue_id); | |
10344 | mbox->vport = hrq->phba->pport; | |
10345 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10346 | rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL); | |
10347 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10348 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10349 | &mbox->u.mqe.un.rq_destroy.header.cfg_shdr; | |
10350 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10351 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10352 | if (shdr_status || shdr_add_status || rc) { | |
10353 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10354 | "2509 RQ_DESTROY mailbox failed with " | |
10355 | "status x%x add_status x%x, mbx status x%x\n", | |
10356 | shdr_status, shdr_add_status, rc); | |
10357 | if (rc != MBX_TIMEOUT) | |
10358 | mempool_free(mbox, hrq->phba->mbox_mem_pool); | |
10359 | return -ENXIO; | |
10360 | } | |
10361 | bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request, | |
10362 | drq->queue_id); | |
10363 | rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL); | |
10364 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10365 | &mbox->u.mqe.un.rq_destroy.header.cfg_shdr; | |
10366 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10367 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10368 | if (shdr_status || shdr_add_status || rc) { | |
10369 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10370 | "2510 RQ_DESTROY mailbox failed with " | |
10371 | "status x%x add_status x%x, mbx status x%x\n", | |
10372 | shdr_status, shdr_add_status, rc); | |
10373 | status = -ENXIO; | |
10374 | } | |
10375 | list_del_init(&hrq->list); | |
10376 | list_del_init(&drq->list); | |
8fa38513 | 10377 | mempool_free(mbox, hrq->phba->mbox_mem_pool); |
4f774513 JS |
10378 | return status; |
10379 | } | |
10380 | ||
10381 | /** | |
10382 | * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA | |
10383 | * @phba: The virtual port for which this call being executed. | |
10384 | * @pdma_phys_addr0: Physical address of the 1st SGL page. | |
10385 | * @pdma_phys_addr1: Physical address of the 2nd SGL page. | |
10386 | * @xritag: the xritag that ties this io to the SGL pages. | |
10387 | * | |
10388 | * This routine will post the sgl pages for the IO that has the xritag | |
10389 | * that is in the iocbq structure. The xritag is assigned during iocbq | |
10390 | * creation and persists for as long as the driver is loaded. | |
10391 | * if the caller has fewer than 256 scatter gather segments to map then | |
10392 | * pdma_phys_addr1 should be 0. | |
10393 | * If the caller needs to map more than 256 scatter gather segment then | |
10394 | * pdma_phys_addr1 should be a valid physical address. | |
10395 | * physical address for SGLs must be 64 byte aligned. | |
10396 | * If you are going to map 2 SGL's then the first one must have 256 entries | |
10397 | * the second sgl can have between 1 and 256 entries. | |
10398 | * | |
10399 | * Return codes: | |
10400 | * 0 - Success | |
10401 | * -ENXIO, -ENOMEM - Failure | |
10402 | **/ | |
10403 | int | |
10404 | lpfc_sli4_post_sgl(struct lpfc_hba *phba, | |
10405 | dma_addr_t pdma_phys_addr0, | |
10406 | dma_addr_t pdma_phys_addr1, | |
10407 | uint16_t xritag) | |
10408 | { | |
10409 | struct lpfc_mbx_post_sgl_pages *post_sgl_pages; | |
10410 | LPFC_MBOXQ_t *mbox; | |
10411 | int rc; | |
10412 | uint32_t shdr_status, shdr_add_status; | |
10413 | union lpfc_sli4_cfg_shdr *shdr; | |
10414 | ||
10415 | if (xritag == NO_XRI) { | |
10416 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10417 | "0364 Invalid param:\n"); | |
10418 | return -EINVAL; | |
10419 | } | |
10420 | ||
10421 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10422 | if (!mbox) | |
10423 | return -ENOMEM; | |
10424 | ||
10425 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10426 | LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, | |
10427 | sizeof(struct lpfc_mbx_post_sgl_pages) - | |
10428 | sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED); | |
10429 | ||
10430 | post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *) | |
10431 | &mbox->u.mqe.un.post_sgl_pages; | |
10432 | bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag); | |
10433 | bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1); | |
10434 | ||
10435 | post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo = | |
10436 | cpu_to_le32(putPaddrLow(pdma_phys_addr0)); | |
10437 | post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi = | |
10438 | cpu_to_le32(putPaddrHigh(pdma_phys_addr0)); | |
10439 | ||
10440 | post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo = | |
10441 | cpu_to_le32(putPaddrLow(pdma_phys_addr1)); | |
10442 | post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi = | |
10443 | cpu_to_le32(putPaddrHigh(pdma_phys_addr1)); | |
10444 | if (!phba->sli4_hba.intr_enable) | |
10445 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10446 | else | |
10447 | rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); | |
10448 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10449 | shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr; | |
10450 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10451 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10452 | if (rc != MBX_TIMEOUT) | |
10453 | mempool_free(mbox, phba->mbox_mem_pool); | |
10454 | if (shdr_status || shdr_add_status || rc) { | |
10455 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10456 | "2511 POST_SGL mailbox failed with " | |
10457 | "status x%x add_status x%x, mbx status x%x\n", | |
10458 | shdr_status, shdr_add_status, rc); | |
10459 | rc = -ENXIO; | |
10460 | } | |
10461 | return 0; | |
10462 | } | |
10463 | /** | |
10464 | * lpfc_sli4_remove_all_sgl_pages - Post scatter gather list for an XRI to HBA | |
10465 | * @phba: The virtual port for which this call being executed. | |
10466 | * | |
10467 | * This routine will remove all of the sgl pages registered with the hba. | |
10468 | * | |
10469 | * Return codes: | |
10470 | * 0 - Success | |
10471 | * -ENXIO, -ENOMEM - Failure | |
10472 | **/ | |
10473 | int | |
10474 | lpfc_sli4_remove_all_sgl_pages(struct lpfc_hba *phba) | |
10475 | { | |
10476 | LPFC_MBOXQ_t *mbox; | |
10477 | int rc; | |
10478 | uint32_t shdr_status, shdr_add_status; | |
10479 | union lpfc_sli4_cfg_shdr *shdr; | |
10480 | ||
10481 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10482 | if (!mbox) | |
10483 | return -ENOMEM; | |
10484 | ||
10485 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10486 | LPFC_MBOX_OPCODE_FCOE_REMOVE_SGL_PAGES, 0, | |
10487 | LPFC_SLI4_MBX_EMBED); | |
10488 | if (!phba->sli4_hba.intr_enable) | |
10489 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10490 | else | |
10491 | rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); | |
10492 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10493 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10494 | &mbox->u.mqe.un.sli4_config.header.cfg_shdr; | |
10495 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10496 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10497 | if (rc != MBX_TIMEOUT) | |
10498 | mempool_free(mbox, phba->mbox_mem_pool); | |
10499 | if (shdr_status || shdr_add_status || rc) { | |
10500 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10501 | "2512 REMOVE_ALL_SGL_PAGES mailbox failed with " | |
10502 | "status x%x add_status x%x, mbx status x%x\n", | |
10503 | shdr_status, shdr_add_status, rc); | |
10504 | rc = -ENXIO; | |
10505 | } | |
10506 | return rc; | |
10507 | } | |
10508 | ||
10509 | /** | |
10510 | * lpfc_sli4_next_xritag - Get an xritag for the io | |
10511 | * @phba: Pointer to HBA context object. | |
10512 | * | |
10513 | * This function gets an xritag for the iocb. If there is no unused xritag | |
10514 | * it will return 0xffff. | |
10515 | * The function returns the allocated xritag if successful, else returns zero. | |
10516 | * Zero is not a valid xritag. | |
10517 | * The caller is not required to hold any lock. | |
10518 | **/ | |
10519 | uint16_t | |
10520 | lpfc_sli4_next_xritag(struct lpfc_hba *phba) | |
10521 | { | |
10522 | uint16_t xritag; | |
10523 | ||
10524 | spin_lock_irq(&phba->hbalock); | |
10525 | xritag = phba->sli4_hba.next_xri; | |
10526 | if ((xritag != (uint16_t) -1) && xritag < | |
10527 | (phba->sli4_hba.max_cfg_param.max_xri | |
10528 | + phba->sli4_hba.max_cfg_param.xri_base)) { | |
10529 | phba->sli4_hba.next_xri++; | |
10530 | phba->sli4_hba.max_cfg_param.xri_used++; | |
10531 | spin_unlock_irq(&phba->hbalock); | |
10532 | return xritag; | |
10533 | } | |
10534 | spin_unlock_irq(&phba->hbalock); | |
6a9c52cf | 10535 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
4f774513 JS |
10536 | "2004 Failed to allocate XRI.last XRITAG is %d" |
10537 | " Max XRI is %d, Used XRI is %d\n", | |
10538 | phba->sli4_hba.next_xri, | |
10539 | phba->sli4_hba.max_cfg_param.max_xri, | |
10540 | phba->sli4_hba.max_cfg_param.xri_used); | |
10541 | return -1; | |
10542 | } | |
10543 | ||
10544 | /** | |
10545 | * lpfc_sli4_post_sgl_list - post a block of sgl list to the firmware. | |
10546 | * @phba: pointer to lpfc hba data structure. | |
10547 | * | |
10548 | * This routine is invoked to post a block of driver's sgl pages to the | |
10549 | * HBA using non-embedded mailbox command. No Lock is held. This routine | |
10550 | * is only called when the driver is loading and after all IO has been | |
10551 | * stopped. | |
10552 | **/ | |
10553 | int | |
10554 | lpfc_sli4_post_sgl_list(struct lpfc_hba *phba) | |
10555 | { | |
10556 | struct lpfc_sglq *sglq_entry; | |
10557 | struct lpfc_mbx_post_uembed_sgl_page1 *sgl; | |
10558 | struct sgl_page_pairs *sgl_pg_pairs; | |
10559 | void *viraddr; | |
10560 | LPFC_MBOXQ_t *mbox; | |
10561 | uint32_t reqlen, alloclen, pg_pairs; | |
10562 | uint32_t mbox_tmo; | |
10563 | uint16_t xritag_start = 0; | |
10564 | int els_xri_cnt, rc = 0; | |
10565 | uint32_t shdr_status, shdr_add_status; | |
10566 | union lpfc_sli4_cfg_shdr *shdr; | |
10567 | ||
10568 | /* The number of sgls to be posted */ | |
10569 | els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); | |
10570 | ||
10571 | reqlen = els_xri_cnt * sizeof(struct sgl_page_pairs) + | |
10572 | sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t); | |
10573 | if (reqlen > PAGE_SIZE) { | |
10574 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
10575 | "2559 Block sgl registration required DMA " | |
10576 | "size (%d) great than a page\n", reqlen); | |
10577 | return -ENOMEM; | |
10578 | } | |
10579 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10580 | if (!mbox) { | |
10581 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10582 | "2560 Failed to allocate mbox cmd memory\n"); | |
10583 | return -ENOMEM; | |
10584 | } | |
10585 | ||
10586 | /* Allocate DMA memory and set up the non-embedded mailbox command */ | |
10587 | alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10588 | LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen, | |
10589 | LPFC_SLI4_MBX_NEMBED); | |
10590 | ||
10591 | if (alloclen < reqlen) { | |
10592 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10593 | "0285 Allocated DMA memory size (%d) is " | |
10594 | "less than the requested DMA memory " | |
10595 | "size (%d)\n", alloclen, reqlen); | |
10596 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10597 | return -ENOMEM; | |
10598 | } | |
4f774513 | 10599 | /* Get the first SGE entry from the non-embedded DMA memory */ |
4f774513 JS |
10600 | viraddr = mbox->sge_array->addr[0]; |
10601 | ||
10602 | /* Set up the SGL pages in the non-embedded DMA pages */ | |
10603 | sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr; | |
10604 | sgl_pg_pairs = &sgl->sgl_pg_pairs; | |
10605 | ||
10606 | for (pg_pairs = 0; pg_pairs < els_xri_cnt; pg_pairs++) { | |
10607 | sglq_entry = phba->sli4_hba.lpfc_els_sgl_array[pg_pairs]; | |
10608 | /* Set up the sge entry */ | |
10609 | sgl_pg_pairs->sgl_pg0_addr_lo = | |
10610 | cpu_to_le32(putPaddrLow(sglq_entry->phys)); | |
10611 | sgl_pg_pairs->sgl_pg0_addr_hi = | |
10612 | cpu_to_le32(putPaddrHigh(sglq_entry->phys)); | |
10613 | sgl_pg_pairs->sgl_pg1_addr_lo = | |
10614 | cpu_to_le32(putPaddrLow(0)); | |
10615 | sgl_pg_pairs->sgl_pg1_addr_hi = | |
10616 | cpu_to_le32(putPaddrHigh(0)); | |
10617 | /* Keep the first xritag on the list */ | |
10618 | if (pg_pairs == 0) | |
10619 | xritag_start = sglq_entry->sli4_xritag; | |
10620 | sgl_pg_pairs++; | |
10621 | } | |
10622 | bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start); | |
6a9c52cf | 10623 | bf_set(lpfc_post_sgl_pages_xricnt, sgl, els_xri_cnt); |
4f774513 JS |
10624 | /* Perform endian conversion if necessary */ |
10625 | sgl->word0 = cpu_to_le32(sgl->word0); | |
10626 | ||
10627 | if (!phba->sli4_hba.intr_enable) | |
10628 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10629 | else { | |
10630 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); | |
10631 | rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); | |
10632 | } | |
10633 | shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr; | |
10634 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10635 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10636 | if (rc != MBX_TIMEOUT) | |
10637 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10638 | if (shdr_status || shdr_add_status || rc) { | |
10639 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10640 | "2513 POST_SGL_BLOCK mailbox command failed " | |
10641 | "status x%x add_status x%x mbx status x%x\n", | |
10642 | shdr_status, shdr_add_status, rc); | |
10643 | rc = -ENXIO; | |
10644 | } | |
10645 | return rc; | |
10646 | } | |
10647 | ||
10648 | /** | |
10649 | * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware | |
10650 | * @phba: pointer to lpfc hba data structure. | |
10651 | * @sblist: pointer to scsi buffer list. | |
10652 | * @count: number of scsi buffers on the list. | |
10653 | * | |
10654 | * This routine is invoked to post a block of @count scsi sgl pages from a | |
10655 | * SCSI buffer list @sblist to the HBA using non-embedded mailbox command. | |
10656 | * No Lock is held. | |
10657 | * | |
10658 | **/ | |
10659 | int | |
10660 | lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba, struct list_head *sblist, | |
10661 | int cnt) | |
10662 | { | |
10663 | struct lpfc_scsi_buf *psb; | |
10664 | struct lpfc_mbx_post_uembed_sgl_page1 *sgl; | |
10665 | struct sgl_page_pairs *sgl_pg_pairs; | |
10666 | void *viraddr; | |
10667 | LPFC_MBOXQ_t *mbox; | |
10668 | uint32_t reqlen, alloclen, pg_pairs; | |
10669 | uint32_t mbox_tmo; | |
10670 | uint16_t xritag_start = 0; | |
10671 | int rc = 0; | |
10672 | uint32_t shdr_status, shdr_add_status; | |
10673 | dma_addr_t pdma_phys_bpl1; | |
10674 | union lpfc_sli4_cfg_shdr *shdr; | |
10675 | ||
10676 | /* Calculate the requested length of the dma memory */ | |
10677 | reqlen = cnt * sizeof(struct sgl_page_pairs) + | |
10678 | sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t); | |
10679 | if (reqlen > PAGE_SIZE) { | |
10680 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
10681 | "0217 Block sgl registration required DMA " | |
10682 | "size (%d) great than a page\n", reqlen); | |
10683 | return -ENOMEM; | |
10684 | } | |
10685 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10686 | if (!mbox) { | |
10687 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10688 | "0283 Failed to allocate mbox cmd memory\n"); | |
10689 | return -ENOMEM; | |
10690 | } | |
10691 | ||
10692 | /* Allocate DMA memory and set up the non-embedded mailbox command */ | |
10693 | alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10694 | LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen, | |
10695 | LPFC_SLI4_MBX_NEMBED); | |
10696 | ||
10697 | if (alloclen < reqlen) { | |
10698 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10699 | "2561 Allocated DMA memory size (%d) is " | |
10700 | "less than the requested DMA memory " | |
10701 | "size (%d)\n", alloclen, reqlen); | |
10702 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10703 | return -ENOMEM; | |
10704 | } | |
4f774513 | 10705 | /* Get the first SGE entry from the non-embedded DMA memory */ |
4f774513 JS |
10706 | viraddr = mbox->sge_array->addr[0]; |
10707 | ||
10708 | /* Set up the SGL pages in the non-embedded DMA pages */ | |
10709 | sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr; | |
10710 | sgl_pg_pairs = &sgl->sgl_pg_pairs; | |
10711 | ||
10712 | pg_pairs = 0; | |
10713 | list_for_each_entry(psb, sblist, list) { | |
10714 | /* Set up the sge entry */ | |
10715 | sgl_pg_pairs->sgl_pg0_addr_lo = | |
10716 | cpu_to_le32(putPaddrLow(psb->dma_phys_bpl)); | |
10717 | sgl_pg_pairs->sgl_pg0_addr_hi = | |
10718 | cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl)); | |
10719 | if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE) | |
10720 | pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE; | |
10721 | else | |
10722 | pdma_phys_bpl1 = 0; | |
10723 | sgl_pg_pairs->sgl_pg1_addr_lo = | |
10724 | cpu_to_le32(putPaddrLow(pdma_phys_bpl1)); | |
10725 | sgl_pg_pairs->sgl_pg1_addr_hi = | |
10726 | cpu_to_le32(putPaddrHigh(pdma_phys_bpl1)); | |
10727 | /* Keep the first xritag on the list */ | |
10728 | if (pg_pairs == 0) | |
10729 | xritag_start = psb->cur_iocbq.sli4_xritag; | |
10730 | sgl_pg_pairs++; | |
10731 | pg_pairs++; | |
10732 | } | |
10733 | bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start); | |
10734 | bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs); | |
10735 | /* Perform endian conversion if necessary */ | |
10736 | sgl->word0 = cpu_to_le32(sgl->word0); | |
10737 | ||
10738 | if (!phba->sli4_hba.intr_enable) | |
10739 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10740 | else { | |
10741 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); | |
10742 | rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); | |
10743 | } | |
10744 | shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr; | |
10745 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10746 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10747 | if (rc != MBX_TIMEOUT) | |
10748 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10749 | if (shdr_status || shdr_add_status || rc) { | |
10750 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10751 | "2564 POST_SGL_BLOCK mailbox command failed " | |
10752 | "status x%x add_status x%x mbx status x%x\n", | |
10753 | shdr_status, shdr_add_status, rc); | |
10754 | rc = -ENXIO; | |
10755 | } | |
10756 | return rc; | |
10757 | } | |
10758 | ||
10759 | /** | |
10760 | * lpfc_fc_frame_check - Check that this frame is a valid frame to handle | |
10761 | * @phba: pointer to lpfc_hba struct that the frame was received on | |
10762 | * @fc_hdr: A pointer to the FC Header data (In Big Endian Format) | |
10763 | * | |
10764 | * This function checks the fields in the @fc_hdr to see if the FC frame is a | |
10765 | * valid type of frame that the LPFC driver will handle. This function will | |
10766 | * return a zero if the frame is a valid frame or a non zero value when the | |
10767 | * frame does not pass the check. | |
10768 | **/ | |
10769 | static int | |
10770 | lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr) | |
10771 | { | |
10772 | char *rctl_names[] = FC_RCTL_NAMES_INIT; | |
10773 | char *type_names[] = FC_TYPE_NAMES_INIT; | |
10774 | struct fc_vft_header *fc_vft_hdr; | |
10775 | ||
10776 | switch (fc_hdr->fh_r_ctl) { | |
10777 | case FC_RCTL_DD_UNCAT: /* uncategorized information */ | |
10778 | case FC_RCTL_DD_SOL_DATA: /* solicited data */ | |
10779 | case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */ | |
10780 | case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */ | |
10781 | case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */ | |
10782 | case FC_RCTL_DD_DATA_DESC: /* data descriptor */ | |
10783 | case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */ | |
10784 | case FC_RCTL_DD_CMD_STATUS: /* command status */ | |
10785 | case FC_RCTL_ELS_REQ: /* extended link services request */ | |
10786 | case FC_RCTL_ELS_REP: /* extended link services reply */ | |
10787 | case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */ | |
10788 | case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */ | |
10789 | case FC_RCTL_BA_NOP: /* basic link service NOP */ | |
10790 | case FC_RCTL_BA_ABTS: /* basic link service abort */ | |
10791 | case FC_RCTL_BA_RMC: /* remove connection */ | |
10792 | case FC_RCTL_BA_ACC: /* basic accept */ | |
10793 | case FC_RCTL_BA_RJT: /* basic reject */ | |
10794 | case FC_RCTL_BA_PRMT: | |
10795 | case FC_RCTL_ACK_1: /* acknowledge_1 */ | |
10796 | case FC_RCTL_ACK_0: /* acknowledge_0 */ | |
10797 | case FC_RCTL_P_RJT: /* port reject */ | |
10798 | case FC_RCTL_F_RJT: /* fabric reject */ | |
10799 | case FC_RCTL_P_BSY: /* port busy */ | |
10800 | case FC_RCTL_F_BSY: /* fabric busy to data frame */ | |
10801 | case FC_RCTL_F_BSYL: /* fabric busy to link control frame */ | |
10802 | case FC_RCTL_LCR: /* link credit reset */ | |
10803 | case FC_RCTL_END: /* end */ | |
10804 | break; | |
10805 | case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */ | |
10806 | fc_vft_hdr = (struct fc_vft_header *)fc_hdr; | |
10807 | fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1]; | |
10808 | return lpfc_fc_frame_check(phba, fc_hdr); | |
10809 | default: | |
10810 | goto drop; | |
10811 | } | |
10812 | switch (fc_hdr->fh_type) { | |
10813 | case FC_TYPE_BLS: | |
10814 | case FC_TYPE_ELS: | |
10815 | case FC_TYPE_FCP: | |
10816 | case FC_TYPE_CT: | |
10817 | break; | |
10818 | case FC_TYPE_IP: | |
10819 | case FC_TYPE_ILS: | |
10820 | default: | |
10821 | goto drop; | |
10822 | } | |
10823 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
10824 | "2538 Received frame rctl:%s type:%s\n", | |
10825 | rctl_names[fc_hdr->fh_r_ctl], | |
10826 | type_names[fc_hdr->fh_type]); | |
10827 | return 0; | |
10828 | drop: | |
10829 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, | |
10830 | "2539 Dropped frame rctl:%s type:%s\n", | |
10831 | rctl_names[fc_hdr->fh_r_ctl], | |
10832 | type_names[fc_hdr->fh_type]); | |
10833 | return 1; | |
10834 | } | |
10835 | ||
10836 | /** | |
10837 | * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame | |
10838 | * @fc_hdr: A pointer to the FC Header data (In Big Endian Format) | |
10839 | * | |
10840 | * This function processes the FC header to retrieve the VFI from the VF | |
10841 | * header, if one exists. This function will return the VFI if one exists | |
10842 | * or 0 if no VSAN Header exists. | |
10843 | **/ | |
10844 | static uint32_t | |
10845 | lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr) | |
10846 | { | |
10847 | struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr; | |
10848 | ||
10849 | if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH) | |
10850 | return 0; | |
10851 | return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr); | |
10852 | } | |
10853 | ||
10854 | /** | |
10855 | * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to | |
10856 | * @phba: Pointer to the HBA structure to search for the vport on | |
10857 | * @fc_hdr: A pointer to the FC Header data (In Big Endian Format) | |
10858 | * @fcfi: The FC Fabric ID that the frame came from | |
10859 | * | |
10860 | * This function searches the @phba for a vport that matches the content of the | |
10861 | * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the | |
10862 | * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function | |
10863 | * returns the matching vport pointer or NULL if unable to match frame to a | |
10864 | * vport. | |
10865 | **/ | |
10866 | static struct lpfc_vport * | |
10867 | lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr, | |
10868 | uint16_t fcfi) | |
10869 | { | |
10870 | struct lpfc_vport **vports; | |
10871 | struct lpfc_vport *vport = NULL; | |
10872 | int i; | |
10873 | uint32_t did = (fc_hdr->fh_d_id[0] << 16 | | |
10874 | fc_hdr->fh_d_id[1] << 8 | | |
10875 | fc_hdr->fh_d_id[2]); | |
10876 | ||
10877 | vports = lpfc_create_vport_work_array(phba); | |
10878 | if (vports != NULL) | |
10879 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { | |
10880 | if (phba->fcf.fcfi == fcfi && | |
10881 | vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) && | |
10882 | vports[i]->fc_myDID == did) { | |
10883 | vport = vports[i]; | |
10884 | break; | |
10885 | } | |
10886 | } | |
10887 | lpfc_destroy_vport_work_array(phba, vports); | |
10888 | return vport; | |
10889 | } | |
10890 | ||
45ed1190 JS |
10891 | /** |
10892 | * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp | |
10893 | * @vport: The vport to work on. | |
10894 | * | |
10895 | * This function updates the receive sequence time stamp for this vport. The | |
10896 | * receive sequence time stamp indicates the time that the last frame of the | |
10897 | * the sequence that has been idle for the longest amount of time was received. | |
10898 | * the driver uses this time stamp to indicate if any received sequences have | |
10899 | * timed out. | |
10900 | **/ | |
10901 | void | |
10902 | lpfc_update_rcv_time_stamp(struct lpfc_vport *vport) | |
10903 | { | |
10904 | struct lpfc_dmabuf *h_buf; | |
10905 | struct hbq_dmabuf *dmabuf = NULL; | |
10906 | ||
10907 | /* get the oldest sequence on the rcv list */ | |
10908 | h_buf = list_get_first(&vport->rcv_buffer_list, | |
10909 | struct lpfc_dmabuf, list); | |
10910 | if (!h_buf) | |
10911 | return; | |
10912 | dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf); | |
10913 | vport->rcv_buffer_time_stamp = dmabuf->time_stamp; | |
10914 | } | |
10915 | ||
10916 | /** | |
10917 | * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences. | |
10918 | * @vport: The vport that the received sequences were sent to. | |
10919 | * | |
10920 | * This function cleans up all outstanding received sequences. This is called | |
10921 | * by the driver when a link event or user action invalidates all the received | |
10922 | * sequences. | |
10923 | **/ | |
10924 | void | |
10925 | lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport) | |
10926 | { | |
10927 | struct lpfc_dmabuf *h_buf, *hnext; | |
10928 | struct lpfc_dmabuf *d_buf, *dnext; | |
10929 | struct hbq_dmabuf *dmabuf = NULL; | |
10930 | ||
10931 | /* start with the oldest sequence on the rcv list */ | |
10932 | list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) { | |
10933 | dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf); | |
10934 | list_del_init(&dmabuf->hbuf.list); | |
10935 | list_for_each_entry_safe(d_buf, dnext, | |
10936 | &dmabuf->dbuf.list, list) { | |
10937 | list_del_init(&d_buf->list); | |
10938 | lpfc_in_buf_free(vport->phba, d_buf); | |
10939 | } | |
10940 | lpfc_in_buf_free(vport->phba, &dmabuf->dbuf); | |
10941 | } | |
10942 | } | |
10943 | ||
10944 | /** | |
10945 | * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences. | |
10946 | * @vport: The vport that the received sequences were sent to. | |
10947 | * | |
10948 | * This function determines whether any received sequences have timed out by | |
10949 | * first checking the vport's rcv_buffer_time_stamp. If this time_stamp | |
10950 | * indicates that there is at least one timed out sequence this routine will | |
10951 | * go through the received sequences one at a time from most inactive to most | |
10952 | * active to determine which ones need to be cleaned up. Once it has determined | |
10953 | * that a sequence needs to be cleaned up it will simply free up the resources | |
10954 | * without sending an abort. | |
10955 | **/ | |
10956 | void | |
10957 | lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport) | |
10958 | { | |
10959 | struct lpfc_dmabuf *h_buf, *hnext; | |
10960 | struct lpfc_dmabuf *d_buf, *dnext; | |
10961 | struct hbq_dmabuf *dmabuf = NULL; | |
10962 | unsigned long timeout; | |
10963 | int abort_count = 0; | |
10964 | ||
10965 | timeout = (msecs_to_jiffies(vport->phba->fc_edtov) + | |
10966 | vport->rcv_buffer_time_stamp); | |
10967 | if (list_empty(&vport->rcv_buffer_list) || | |
10968 | time_before(jiffies, timeout)) | |
10969 | return; | |
10970 | /* start with the oldest sequence on the rcv list */ | |
10971 | list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) { | |
10972 | dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf); | |
10973 | timeout = (msecs_to_jiffies(vport->phba->fc_edtov) + | |
10974 | dmabuf->time_stamp); | |
10975 | if (time_before(jiffies, timeout)) | |
10976 | break; | |
10977 | abort_count++; | |
10978 | list_del_init(&dmabuf->hbuf.list); | |
10979 | list_for_each_entry_safe(d_buf, dnext, | |
10980 | &dmabuf->dbuf.list, list) { | |
10981 | list_del_init(&d_buf->list); | |
10982 | lpfc_in_buf_free(vport->phba, d_buf); | |
10983 | } | |
10984 | lpfc_in_buf_free(vport->phba, &dmabuf->dbuf); | |
10985 | } | |
10986 | if (abort_count) | |
10987 | lpfc_update_rcv_time_stamp(vport); | |
10988 | } | |
10989 | ||
4f774513 JS |
10990 | /** |
10991 | * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences | |
10992 | * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame | |
10993 | * | |
10994 | * This function searches through the existing incomplete sequences that have | |
10995 | * been sent to this @vport. If the frame matches one of the incomplete | |
10996 | * sequences then the dbuf in the @dmabuf is added to the list of frames that | |
10997 | * make up that sequence. If no sequence is found that matches this frame then | |
10998 | * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list | |
10999 | * This function returns a pointer to the first dmabuf in the sequence list that | |
11000 | * the frame was linked to. | |
11001 | **/ | |
11002 | static struct hbq_dmabuf * | |
11003 | lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf) | |
11004 | { | |
11005 | struct fc_frame_header *new_hdr; | |
11006 | struct fc_frame_header *temp_hdr; | |
11007 | struct lpfc_dmabuf *d_buf; | |
11008 | struct lpfc_dmabuf *h_buf; | |
11009 | struct hbq_dmabuf *seq_dmabuf = NULL; | |
11010 | struct hbq_dmabuf *temp_dmabuf = NULL; | |
11011 | ||
4d9ab994 | 11012 | INIT_LIST_HEAD(&dmabuf->dbuf.list); |
45ed1190 | 11013 | dmabuf->time_stamp = jiffies; |
4f774513 JS |
11014 | new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt; |
11015 | /* Use the hdr_buf to find the sequence that this frame belongs to */ | |
11016 | list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) { | |
11017 | temp_hdr = (struct fc_frame_header *)h_buf->virt; | |
11018 | if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) || | |
11019 | (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) || | |
11020 | (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3))) | |
11021 | continue; | |
11022 | /* found a pending sequence that matches this frame */ | |
11023 | seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf); | |
11024 | break; | |
11025 | } | |
11026 | if (!seq_dmabuf) { | |
11027 | /* | |
11028 | * This indicates first frame received for this sequence. | |
11029 | * Queue the buffer on the vport's rcv_buffer_list. | |
11030 | */ | |
11031 | list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list); | |
45ed1190 | 11032 | lpfc_update_rcv_time_stamp(vport); |
4f774513 JS |
11033 | return dmabuf; |
11034 | } | |
11035 | temp_hdr = seq_dmabuf->hbuf.virt; | |
eeead811 JS |
11036 | if (be16_to_cpu(new_hdr->fh_seq_cnt) < |
11037 | be16_to_cpu(temp_hdr->fh_seq_cnt)) { | |
4d9ab994 JS |
11038 | list_del_init(&seq_dmabuf->hbuf.list); |
11039 | list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list); | |
11040 | list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list); | |
45ed1190 | 11041 | lpfc_update_rcv_time_stamp(vport); |
4f774513 JS |
11042 | return dmabuf; |
11043 | } | |
45ed1190 JS |
11044 | /* move this sequence to the tail to indicate a young sequence */ |
11045 | list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list); | |
11046 | seq_dmabuf->time_stamp = jiffies; | |
11047 | lpfc_update_rcv_time_stamp(vport); | |
eeead811 JS |
11048 | if (list_empty(&seq_dmabuf->dbuf.list)) { |
11049 | temp_hdr = dmabuf->hbuf.virt; | |
11050 | list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list); | |
11051 | return seq_dmabuf; | |
11052 | } | |
4f774513 JS |
11053 | /* find the correct place in the sequence to insert this frame */ |
11054 | list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) { | |
11055 | temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf); | |
11056 | temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt; | |
11057 | /* | |
11058 | * If the frame's sequence count is greater than the frame on | |
11059 | * the list then insert the frame right after this frame | |
11060 | */ | |
eeead811 JS |
11061 | if (be16_to_cpu(new_hdr->fh_seq_cnt) > |
11062 | be16_to_cpu(temp_hdr->fh_seq_cnt)) { | |
4f774513 JS |
11063 | list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list); |
11064 | return seq_dmabuf; | |
11065 | } | |
11066 | } | |
11067 | return NULL; | |
11068 | } | |
11069 | ||
6669f9bb JS |
11070 | /** |
11071 | * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence | |
11072 | * @vport: pointer to a vitural port | |
11073 | * @dmabuf: pointer to a dmabuf that describes the FC sequence | |
11074 | * | |
11075 | * This function tries to abort from the partially assembed sequence, described | |
11076 | * by the information from basic abbort @dmabuf. It checks to see whether such | |
11077 | * partially assembled sequence held by the driver. If so, it shall free up all | |
11078 | * the frames from the partially assembled sequence. | |
11079 | * | |
11080 | * Return | |
11081 | * true -- if there is matching partially assembled sequence present and all | |
11082 | * the frames freed with the sequence; | |
11083 | * false -- if there is no matching partially assembled sequence present so | |
11084 | * nothing got aborted in the lower layer driver | |
11085 | **/ | |
11086 | static bool | |
11087 | lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport, | |
11088 | struct hbq_dmabuf *dmabuf) | |
11089 | { | |
11090 | struct fc_frame_header *new_hdr; | |
11091 | struct fc_frame_header *temp_hdr; | |
11092 | struct lpfc_dmabuf *d_buf, *n_buf, *h_buf; | |
11093 | struct hbq_dmabuf *seq_dmabuf = NULL; | |
11094 | ||
11095 | /* Use the hdr_buf to find the sequence that matches this frame */ | |
11096 | INIT_LIST_HEAD(&dmabuf->dbuf.list); | |
11097 | INIT_LIST_HEAD(&dmabuf->hbuf.list); | |
11098 | new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt; | |
11099 | list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) { | |
11100 | temp_hdr = (struct fc_frame_header *)h_buf->virt; | |
11101 | if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) || | |
11102 | (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) || | |
11103 | (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3))) | |
11104 | continue; | |
11105 | /* found a pending sequence that matches this frame */ | |
11106 | seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf); | |
11107 | break; | |
11108 | } | |
11109 | ||
11110 | /* Free up all the frames from the partially assembled sequence */ | |
11111 | if (seq_dmabuf) { | |
11112 | list_for_each_entry_safe(d_buf, n_buf, | |
11113 | &seq_dmabuf->dbuf.list, list) { | |
11114 | list_del_init(&d_buf->list); | |
11115 | lpfc_in_buf_free(vport->phba, d_buf); | |
11116 | } | |
11117 | return true; | |
11118 | } | |
11119 | return false; | |
11120 | } | |
11121 | ||
11122 | /** | |
11123 | * lpfc_sli4_seq_abort_acc_cmpl - Accept seq abort iocb complete handler | |
11124 | * @phba: Pointer to HBA context object. | |
11125 | * @cmd_iocbq: pointer to the command iocbq structure. | |
11126 | * @rsp_iocbq: pointer to the response iocbq structure. | |
11127 | * | |
11128 | * This function handles the sequence abort accept iocb command complete | |
11129 | * event. It properly releases the memory allocated to the sequence abort | |
11130 | * accept iocb. | |
11131 | **/ | |
11132 | static void | |
11133 | lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba *phba, | |
11134 | struct lpfc_iocbq *cmd_iocbq, | |
11135 | struct lpfc_iocbq *rsp_iocbq) | |
11136 | { | |
11137 | if (cmd_iocbq) | |
11138 | lpfc_sli_release_iocbq(phba, cmd_iocbq); | |
11139 | } | |
11140 | ||
11141 | /** | |
11142 | * lpfc_sli4_seq_abort_acc - Accept sequence abort | |
11143 | * @phba: Pointer to HBA context object. | |
11144 | * @fc_hdr: pointer to a FC frame header. | |
11145 | * | |
11146 | * This function sends a basic accept to a previous unsol sequence abort | |
11147 | * event after aborting the sequence handling. | |
11148 | **/ | |
11149 | static void | |
11150 | lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba, | |
11151 | struct fc_frame_header *fc_hdr) | |
11152 | { | |
11153 | struct lpfc_iocbq *ctiocb = NULL; | |
11154 | struct lpfc_nodelist *ndlp; | |
5ffc266e JS |
11155 | uint16_t oxid, rxid; |
11156 | uint32_t sid, fctl; | |
6669f9bb JS |
11157 | IOCB_t *icmd; |
11158 | ||
11159 | if (!lpfc_is_link_up(phba)) | |
11160 | return; | |
11161 | ||
11162 | sid = sli4_sid_from_fc_hdr(fc_hdr); | |
11163 | oxid = be16_to_cpu(fc_hdr->fh_ox_id); | |
5ffc266e | 11164 | rxid = be16_to_cpu(fc_hdr->fh_rx_id); |
6669f9bb JS |
11165 | |
11166 | ndlp = lpfc_findnode_did(phba->pport, sid); | |
11167 | if (!ndlp) { | |
11168 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, | |
11169 | "1268 Find ndlp returned NULL for oxid:x%x " | |
11170 | "SID:x%x\n", oxid, sid); | |
11171 | return; | |
11172 | } | |
11173 | ||
11174 | /* Allocate buffer for acc iocb */ | |
11175 | ctiocb = lpfc_sli_get_iocbq(phba); | |
11176 | if (!ctiocb) | |
11177 | return; | |
11178 | ||
5ffc266e JS |
11179 | /* Extract the F_CTL field from FC_HDR */ |
11180 | fctl = sli4_fctl_from_fc_hdr(fc_hdr); | |
11181 | ||
6669f9bb | 11182 | icmd = &ctiocb->iocb; |
6669f9bb | 11183 | icmd->un.xseq64.bdl.bdeSize = 0; |
5ffc266e | 11184 | icmd->un.xseq64.bdl.ulpIoTag32 = 0; |
6669f9bb JS |
11185 | icmd->un.xseq64.w5.hcsw.Dfctl = 0; |
11186 | icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC; | |
11187 | icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS; | |
11188 | ||
11189 | /* Fill in the rest of iocb fields */ | |
11190 | icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX; | |
11191 | icmd->ulpBdeCount = 0; | |
11192 | icmd->ulpLe = 1; | |
11193 | icmd->ulpClass = CLASS3; | |
11194 | icmd->ulpContext = ndlp->nlp_rpi; | |
6669f9bb | 11195 | |
6669f9bb JS |
11196 | ctiocb->iocb_cmpl = NULL; |
11197 | ctiocb->vport = phba->pport; | |
11198 | ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_acc_cmpl; | |
11199 | ||
5ffc266e JS |
11200 | if (fctl & FC_FC_EX_CTX) { |
11201 | /* ABTS sent by responder to CT exchange, construction | |
11202 | * of BA_ACC will use OX_ID from ABTS for the XRI_TAG | |
11203 | * field and RX_ID from ABTS for RX_ID field. | |
11204 | */ | |
11205 | bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_RSP); | |
11206 | bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, rxid); | |
11207 | ctiocb->sli4_xritag = oxid; | |
11208 | } else { | |
11209 | /* ABTS sent by initiator to CT exchange, construction | |
11210 | * of BA_ACC will need to allocate a new XRI as for the | |
11211 | * XRI_TAG and RX_ID fields. | |
11212 | */ | |
11213 | bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_INT); | |
11214 | bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, NO_XRI); | |
11215 | ctiocb->sli4_xritag = NO_XRI; | |
11216 | } | |
11217 | bf_set(lpfc_abts_oxid, &icmd->un.bls_acc, oxid); | |
11218 | ||
6669f9bb JS |
11219 | /* Xmit CT abts accept on exchange <xid> */ |
11220 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
11221 | "1200 Xmit CT ABTS ACC on exchange x%x Data: x%x\n", | |
11222 | CMD_XMIT_BLS_RSP64_CX, phba->link_state); | |
11223 | lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0); | |
11224 | } | |
11225 | ||
11226 | /** | |
11227 | * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event | |
11228 | * @vport: Pointer to the vport on which this sequence was received | |
11229 | * @dmabuf: pointer to a dmabuf that describes the FC sequence | |
11230 | * | |
11231 | * This function handles an SLI-4 unsolicited abort event. If the unsolicited | |
11232 | * receive sequence is only partially assembed by the driver, it shall abort | |
11233 | * the partially assembled frames for the sequence. Otherwise, if the | |
11234 | * unsolicited receive sequence has been completely assembled and passed to | |
11235 | * the Upper Layer Protocol (UPL), it then mark the per oxid status for the | |
11236 | * unsolicited sequence has been aborted. After that, it will issue a basic | |
11237 | * accept to accept the abort. | |
11238 | **/ | |
11239 | void | |
11240 | lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport, | |
11241 | struct hbq_dmabuf *dmabuf) | |
11242 | { | |
11243 | struct lpfc_hba *phba = vport->phba; | |
11244 | struct fc_frame_header fc_hdr; | |
5ffc266e | 11245 | uint32_t fctl; |
6669f9bb JS |
11246 | bool abts_par; |
11247 | ||
6669f9bb JS |
11248 | /* Make a copy of fc_hdr before the dmabuf being released */ |
11249 | memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header)); | |
5ffc266e | 11250 | fctl = sli4_fctl_from_fc_hdr(&fc_hdr); |
6669f9bb | 11251 | |
5ffc266e JS |
11252 | if (fctl & FC_FC_EX_CTX) { |
11253 | /* | |
11254 | * ABTS sent by responder to exchange, just free the buffer | |
11255 | */ | |
6669f9bb | 11256 | lpfc_in_buf_free(phba, &dmabuf->dbuf); |
5ffc266e JS |
11257 | } else { |
11258 | /* | |
11259 | * ABTS sent by initiator to exchange, need to do cleanup | |
11260 | */ | |
11261 | /* Try to abort partially assembled seq */ | |
11262 | abts_par = lpfc_sli4_abort_partial_seq(vport, dmabuf); | |
11263 | ||
11264 | /* Send abort to ULP if partially seq abort failed */ | |
11265 | if (abts_par == false) | |
11266 | lpfc_sli4_send_seq_to_ulp(vport, dmabuf); | |
11267 | else | |
11268 | lpfc_in_buf_free(phba, &dmabuf->dbuf); | |
11269 | } | |
6669f9bb JS |
11270 | /* Send basic accept (BA_ACC) to the abort requester */ |
11271 | lpfc_sli4_seq_abort_acc(phba, &fc_hdr); | |
11272 | } | |
11273 | ||
4f774513 JS |
11274 | /** |
11275 | * lpfc_seq_complete - Indicates if a sequence is complete | |
11276 | * @dmabuf: pointer to a dmabuf that describes the FC sequence | |
11277 | * | |
11278 | * This function checks the sequence, starting with the frame described by | |
11279 | * @dmabuf, to see if all the frames associated with this sequence are present. | |
11280 | * the frames associated with this sequence are linked to the @dmabuf using the | |
11281 | * dbuf list. This function looks for two major things. 1) That the first frame | |
11282 | * has a sequence count of zero. 2) There is a frame with last frame of sequence | |
11283 | * set. 3) That there are no holes in the sequence count. The function will | |
11284 | * return 1 when the sequence is complete, otherwise it will return 0. | |
11285 | **/ | |
11286 | static int | |
11287 | lpfc_seq_complete(struct hbq_dmabuf *dmabuf) | |
11288 | { | |
11289 | struct fc_frame_header *hdr; | |
11290 | struct lpfc_dmabuf *d_buf; | |
11291 | struct hbq_dmabuf *seq_dmabuf; | |
11292 | uint32_t fctl; | |
11293 | int seq_count = 0; | |
11294 | ||
11295 | hdr = (struct fc_frame_header *)dmabuf->hbuf.virt; | |
11296 | /* make sure first fame of sequence has a sequence count of zero */ | |
11297 | if (hdr->fh_seq_cnt != seq_count) | |
11298 | return 0; | |
11299 | fctl = (hdr->fh_f_ctl[0] << 16 | | |
11300 | hdr->fh_f_ctl[1] << 8 | | |
11301 | hdr->fh_f_ctl[2]); | |
11302 | /* If last frame of sequence we can return success. */ | |
11303 | if (fctl & FC_FC_END_SEQ) | |
11304 | return 1; | |
11305 | list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) { | |
11306 | seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf); | |
11307 | hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt; | |
11308 | /* If there is a hole in the sequence count then fail. */ | |
eeead811 | 11309 | if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt)) |
4f774513 JS |
11310 | return 0; |
11311 | fctl = (hdr->fh_f_ctl[0] << 16 | | |
11312 | hdr->fh_f_ctl[1] << 8 | | |
11313 | hdr->fh_f_ctl[2]); | |
11314 | /* If last frame of sequence we can return success. */ | |
11315 | if (fctl & FC_FC_END_SEQ) | |
11316 | return 1; | |
11317 | } | |
11318 | return 0; | |
11319 | } | |
11320 | ||
11321 | /** | |
11322 | * lpfc_prep_seq - Prep sequence for ULP processing | |
11323 | * @vport: Pointer to the vport on which this sequence was received | |
11324 | * @dmabuf: pointer to a dmabuf that describes the FC sequence | |
11325 | * | |
11326 | * This function takes a sequence, described by a list of frames, and creates | |
11327 | * a list of iocbq structures to describe the sequence. This iocbq list will be | |
11328 | * used to issue to the generic unsolicited sequence handler. This routine | |
11329 | * returns a pointer to the first iocbq in the list. If the function is unable | |
11330 | * to allocate an iocbq then it throw out the received frames that were not | |
11331 | * able to be described and return a pointer to the first iocbq. If unable to | |
11332 | * allocate any iocbqs (including the first) this function will return NULL. | |
11333 | **/ | |
11334 | static struct lpfc_iocbq * | |
11335 | lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf) | |
11336 | { | |
11337 | struct lpfc_dmabuf *d_buf, *n_buf; | |
11338 | struct lpfc_iocbq *first_iocbq, *iocbq; | |
11339 | struct fc_frame_header *fc_hdr; | |
11340 | uint32_t sid; | |
eeead811 | 11341 | struct ulp_bde64 *pbde; |
4f774513 JS |
11342 | |
11343 | fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt; | |
11344 | /* remove from receive buffer list */ | |
11345 | list_del_init(&seq_dmabuf->hbuf.list); | |
45ed1190 | 11346 | lpfc_update_rcv_time_stamp(vport); |
4f774513 | 11347 | /* get the Remote Port's SID */ |
6669f9bb | 11348 | sid = sli4_sid_from_fc_hdr(fc_hdr); |
4f774513 JS |
11349 | /* Get an iocbq struct to fill in. */ |
11350 | first_iocbq = lpfc_sli_get_iocbq(vport->phba); | |
11351 | if (first_iocbq) { | |
11352 | /* Initialize the first IOCB. */ | |
8fa38513 | 11353 | first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0; |
4f774513 JS |
11354 | first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS; |
11355 | first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX; | |
11356 | first_iocbq->iocb.ulpContext = be16_to_cpu(fc_hdr->fh_ox_id); | |
11357 | first_iocbq->iocb.unsli3.rcvsli3.vpi = | |
11358 | vport->vpi + vport->phba->vpi_base; | |
11359 | /* put the first buffer into the first IOCBq */ | |
11360 | first_iocbq->context2 = &seq_dmabuf->dbuf; | |
11361 | first_iocbq->context3 = NULL; | |
11362 | first_iocbq->iocb.ulpBdeCount = 1; | |
11363 | first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = | |
11364 | LPFC_DATA_BUF_SIZE; | |
11365 | first_iocbq->iocb.un.rcvels.remoteID = sid; | |
8fa38513 | 11366 | first_iocbq->iocb.unsli3.rcvsli3.acc_len += |
4d9ab994 JS |
11367 | bf_get(lpfc_rcqe_length, |
11368 | &seq_dmabuf->cq_event.cqe.rcqe_cmpl); | |
4f774513 JS |
11369 | } |
11370 | iocbq = first_iocbq; | |
11371 | /* | |
11372 | * Each IOCBq can have two Buffers assigned, so go through the list | |
11373 | * of buffers for this sequence and save two buffers in each IOCBq | |
11374 | */ | |
11375 | list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) { | |
11376 | if (!iocbq) { | |
11377 | lpfc_in_buf_free(vport->phba, d_buf); | |
11378 | continue; | |
11379 | } | |
11380 | if (!iocbq->context3) { | |
11381 | iocbq->context3 = d_buf; | |
11382 | iocbq->iocb.ulpBdeCount++; | |
eeead811 JS |
11383 | pbde = (struct ulp_bde64 *) |
11384 | &iocbq->iocb.unsli3.sli3Words[4]; | |
11385 | pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE; | |
8fa38513 | 11386 | first_iocbq->iocb.unsli3.rcvsli3.acc_len += |
4d9ab994 JS |
11387 | bf_get(lpfc_rcqe_length, |
11388 | &seq_dmabuf->cq_event.cqe.rcqe_cmpl); | |
4f774513 JS |
11389 | } else { |
11390 | iocbq = lpfc_sli_get_iocbq(vport->phba); | |
11391 | if (!iocbq) { | |
11392 | if (first_iocbq) { | |
11393 | first_iocbq->iocb.ulpStatus = | |
11394 | IOSTAT_FCP_RSP_ERROR; | |
11395 | first_iocbq->iocb.un.ulpWord[4] = | |
11396 | IOERR_NO_RESOURCES; | |
11397 | } | |
11398 | lpfc_in_buf_free(vport->phba, d_buf); | |
11399 | continue; | |
11400 | } | |
11401 | iocbq->context2 = d_buf; | |
11402 | iocbq->context3 = NULL; | |
11403 | iocbq->iocb.ulpBdeCount = 1; | |
11404 | iocbq->iocb.un.cont64[0].tus.f.bdeSize = | |
11405 | LPFC_DATA_BUF_SIZE; | |
8fa38513 | 11406 | first_iocbq->iocb.unsli3.rcvsli3.acc_len += |
4d9ab994 JS |
11407 | bf_get(lpfc_rcqe_length, |
11408 | &seq_dmabuf->cq_event.cqe.rcqe_cmpl); | |
4f774513 JS |
11409 | iocbq->iocb.un.rcvels.remoteID = sid; |
11410 | list_add_tail(&iocbq->list, &first_iocbq->list); | |
11411 | } | |
11412 | } | |
11413 | return first_iocbq; | |
11414 | } | |
11415 | ||
6669f9bb JS |
11416 | static void |
11417 | lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport, | |
11418 | struct hbq_dmabuf *seq_dmabuf) | |
11419 | { | |
11420 | struct fc_frame_header *fc_hdr; | |
11421 | struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb; | |
11422 | struct lpfc_hba *phba = vport->phba; | |
11423 | ||
11424 | fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt; | |
11425 | iocbq = lpfc_prep_seq(vport, seq_dmabuf); | |
11426 | if (!iocbq) { | |
11427 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11428 | "2707 Ring %d handler: Failed to allocate " | |
11429 | "iocb Rctl x%x Type x%x received\n", | |
11430 | LPFC_ELS_RING, | |
11431 | fc_hdr->fh_r_ctl, fc_hdr->fh_type); | |
11432 | return; | |
11433 | } | |
11434 | if (!lpfc_complete_unsol_iocb(phba, | |
11435 | &phba->sli.ring[LPFC_ELS_RING], | |
11436 | iocbq, fc_hdr->fh_r_ctl, | |
11437 | fc_hdr->fh_type)) | |
11438 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
11439 | "2540 Ring %d handler: unexpected Rctl " | |
11440 | "x%x Type x%x received\n", | |
11441 | LPFC_ELS_RING, | |
11442 | fc_hdr->fh_r_ctl, fc_hdr->fh_type); | |
11443 | ||
11444 | /* Free iocb created in lpfc_prep_seq */ | |
11445 | list_for_each_entry_safe(curr_iocb, next_iocb, | |
11446 | &iocbq->list, list) { | |
11447 | list_del_init(&curr_iocb->list); | |
11448 | lpfc_sli_release_iocbq(phba, curr_iocb); | |
11449 | } | |
11450 | lpfc_sli_release_iocbq(phba, iocbq); | |
11451 | } | |
11452 | ||
4f774513 JS |
11453 | /** |
11454 | * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware | |
11455 | * @phba: Pointer to HBA context object. | |
11456 | * | |
11457 | * This function is called with no lock held. This function processes all | |
11458 | * the received buffers and gives it to upper layers when a received buffer | |
11459 | * indicates that it is the final frame in the sequence. The interrupt | |
11460 | * service routine processes received buffers at interrupt contexts and adds | |
11461 | * received dma buffers to the rb_pend_list queue and signals the worker thread. | |
11462 | * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the | |
11463 | * appropriate receive function when the final frame in a sequence is received. | |
11464 | **/ | |
4d9ab994 JS |
11465 | void |
11466 | lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba, | |
11467 | struct hbq_dmabuf *dmabuf) | |
4f774513 | 11468 | { |
4d9ab994 | 11469 | struct hbq_dmabuf *seq_dmabuf; |
4f774513 JS |
11470 | struct fc_frame_header *fc_hdr; |
11471 | struct lpfc_vport *vport; | |
11472 | uint32_t fcfi; | |
4f774513 | 11473 | |
4f774513 | 11474 | /* Process each received buffer */ |
4d9ab994 JS |
11475 | fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt; |
11476 | /* check to see if this a valid type of frame */ | |
11477 | if (lpfc_fc_frame_check(phba, fc_hdr)) { | |
11478 | lpfc_in_buf_free(phba, &dmabuf->dbuf); | |
11479 | return; | |
11480 | } | |
11481 | fcfi = bf_get(lpfc_rcqe_fcf_id, &dmabuf->cq_event.cqe.rcqe_cmpl); | |
11482 | vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi); | |
c868595d | 11483 | if (!vport || !(vport->vpi_state & LPFC_VPI_REGISTERED)) { |
4d9ab994 JS |
11484 | /* throw out the frame */ |
11485 | lpfc_in_buf_free(phba, &dmabuf->dbuf); | |
11486 | return; | |
11487 | } | |
6669f9bb JS |
11488 | /* Handle the basic abort sequence (BA_ABTS) event */ |
11489 | if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) { | |
11490 | lpfc_sli4_handle_unsol_abort(vport, dmabuf); | |
11491 | return; | |
11492 | } | |
11493 | ||
4d9ab994 JS |
11494 | /* Link this frame */ |
11495 | seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf); | |
11496 | if (!seq_dmabuf) { | |
11497 | /* unable to add frame to vport - throw it out */ | |
11498 | lpfc_in_buf_free(phba, &dmabuf->dbuf); | |
11499 | return; | |
11500 | } | |
11501 | /* If not last frame in sequence continue processing frames. */ | |
def9c7a9 | 11502 | if (!lpfc_seq_complete(seq_dmabuf)) |
4d9ab994 | 11503 | return; |
def9c7a9 | 11504 | |
6669f9bb JS |
11505 | /* Send the complete sequence to the upper layer protocol */ |
11506 | lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf); | |
4f774513 | 11507 | } |
6fb120a7 JS |
11508 | |
11509 | /** | |
11510 | * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port | |
11511 | * @phba: pointer to lpfc hba data structure. | |
11512 | * | |
11513 | * This routine is invoked to post rpi header templates to the | |
11514 | * HBA consistent with the SLI-4 interface spec. This routine | |
11515 | * posts a PAGE_SIZE memory region to the port to hold up to | |
11516 | * PAGE_SIZE modulo 64 rpi context headers. | |
11517 | * | |
11518 | * This routine does not require any locks. It's usage is expected | |
11519 | * to be driver load or reset recovery when the driver is | |
11520 | * sequential. | |
11521 | * | |
11522 | * Return codes | |
af901ca1 | 11523 | * 0 - successful |
6fb120a7 JS |
11524 | * EIO - The mailbox failed to complete successfully. |
11525 | * When this error occurs, the driver is not guaranteed | |
11526 | * to have any rpi regions posted to the device and | |
11527 | * must either attempt to repost the regions or take a | |
11528 | * fatal error. | |
11529 | **/ | |
11530 | int | |
11531 | lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba) | |
11532 | { | |
11533 | struct lpfc_rpi_hdr *rpi_page; | |
11534 | uint32_t rc = 0; | |
11535 | ||
11536 | /* Post all rpi memory regions to the port. */ | |
11537 | list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) { | |
11538 | rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page); | |
11539 | if (rc != MBX_SUCCESS) { | |
11540 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11541 | "2008 Error %d posting all rpi " | |
11542 | "headers\n", rc); | |
11543 | rc = -EIO; | |
11544 | break; | |
11545 | } | |
11546 | } | |
11547 | ||
11548 | return rc; | |
11549 | } | |
11550 | ||
11551 | /** | |
11552 | * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port | |
11553 | * @phba: pointer to lpfc hba data structure. | |
11554 | * @rpi_page: pointer to the rpi memory region. | |
11555 | * | |
11556 | * This routine is invoked to post a single rpi header to the | |
11557 | * HBA consistent with the SLI-4 interface spec. This memory region | |
11558 | * maps up to 64 rpi context regions. | |
11559 | * | |
11560 | * Return codes | |
af901ca1 | 11561 | * 0 - successful |
6fb120a7 JS |
11562 | * ENOMEM - No available memory |
11563 | * EIO - The mailbox failed to complete successfully. | |
11564 | **/ | |
11565 | int | |
11566 | lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page) | |
11567 | { | |
11568 | LPFC_MBOXQ_t *mboxq; | |
11569 | struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl; | |
11570 | uint32_t rc = 0; | |
11571 | uint32_t mbox_tmo; | |
11572 | uint32_t shdr_status, shdr_add_status; | |
11573 | union lpfc_sli4_cfg_shdr *shdr; | |
11574 | ||
11575 | /* The port is notified of the header region via a mailbox command. */ | |
11576 | mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
11577 | if (!mboxq) { | |
11578 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11579 | "2001 Unable to allocate memory for issuing " | |
11580 | "SLI_CONFIG_SPECIAL mailbox command\n"); | |
11581 | return -ENOMEM; | |
11582 | } | |
11583 | ||
11584 | /* Post all rpi memory regions to the port. */ | |
11585 | hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl; | |
11586 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); | |
11587 | lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
11588 | LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE, | |
11589 | sizeof(struct lpfc_mbx_post_hdr_tmpl) - | |
11590 | sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED); | |
11591 | bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt, | |
11592 | hdr_tmpl, rpi_page->page_count); | |
11593 | bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl, | |
11594 | rpi_page->start_rpi); | |
11595 | hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys); | |
11596 | hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys); | |
f1126688 | 11597 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); |
6fb120a7 JS |
11598 | shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr; |
11599 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
11600 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
11601 | if (rc != MBX_TIMEOUT) | |
11602 | mempool_free(mboxq, phba->mbox_mem_pool); | |
11603 | if (shdr_status || shdr_add_status || rc) { | |
11604 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11605 | "2514 POST_RPI_HDR mailbox failed with " | |
11606 | "status x%x add_status x%x, mbx status x%x\n", | |
11607 | shdr_status, shdr_add_status, rc); | |
11608 | rc = -ENXIO; | |
11609 | } | |
11610 | return rc; | |
11611 | } | |
11612 | ||
11613 | /** | |
11614 | * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range | |
11615 | * @phba: pointer to lpfc hba data structure. | |
11616 | * | |
11617 | * This routine is invoked to post rpi header templates to the | |
11618 | * HBA consistent with the SLI-4 interface spec. This routine | |
11619 | * posts a PAGE_SIZE memory region to the port to hold up to | |
11620 | * PAGE_SIZE modulo 64 rpi context headers. | |
11621 | * | |
11622 | * Returns | |
af901ca1 | 11623 | * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful |
6fb120a7 JS |
11624 | * LPFC_RPI_ALLOC_ERROR if no rpis are available. |
11625 | **/ | |
11626 | int | |
11627 | lpfc_sli4_alloc_rpi(struct lpfc_hba *phba) | |
11628 | { | |
11629 | int rpi; | |
11630 | uint16_t max_rpi, rpi_base, rpi_limit; | |
11631 | uint16_t rpi_remaining; | |
11632 | struct lpfc_rpi_hdr *rpi_hdr; | |
11633 | ||
11634 | max_rpi = phba->sli4_hba.max_cfg_param.max_rpi; | |
11635 | rpi_base = phba->sli4_hba.max_cfg_param.rpi_base; | |
11636 | rpi_limit = phba->sli4_hba.next_rpi; | |
11637 | ||
11638 | /* | |
11639 | * The valid rpi range is not guaranteed to be zero-based. Start | |
11640 | * the search at the rpi_base as reported by the port. | |
11641 | */ | |
11642 | spin_lock_irq(&phba->hbalock); | |
11643 | rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, rpi_base); | |
11644 | if (rpi >= rpi_limit || rpi < rpi_base) | |
11645 | rpi = LPFC_RPI_ALLOC_ERROR; | |
11646 | else { | |
11647 | set_bit(rpi, phba->sli4_hba.rpi_bmask); | |
11648 | phba->sli4_hba.max_cfg_param.rpi_used++; | |
11649 | phba->sli4_hba.rpi_count++; | |
11650 | } | |
11651 | ||
11652 | /* | |
11653 | * Don't try to allocate more rpi header regions if the device limit | |
11654 | * on available rpis max has been exhausted. | |
11655 | */ | |
11656 | if ((rpi == LPFC_RPI_ALLOC_ERROR) && | |
11657 | (phba->sli4_hba.rpi_count >= max_rpi)) { | |
11658 | spin_unlock_irq(&phba->hbalock); | |
11659 | return rpi; | |
11660 | } | |
11661 | ||
11662 | /* | |
11663 | * If the driver is running low on rpi resources, allocate another | |
11664 | * page now. Note that the next_rpi value is used because | |
11665 | * it represents how many are actually in use whereas max_rpi notes | |
11666 | * how many are supported max by the device. | |
11667 | */ | |
11668 | rpi_remaining = phba->sli4_hba.next_rpi - rpi_base - | |
11669 | phba->sli4_hba.rpi_count; | |
11670 | spin_unlock_irq(&phba->hbalock); | |
11671 | if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) { | |
11672 | rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); | |
11673 | if (!rpi_hdr) { | |
11674 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11675 | "2002 Error Could not grow rpi " | |
11676 | "count\n"); | |
11677 | } else { | |
11678 | lpfc_sli4_post_rpi_hdr(phba, rpi_hdr); | |
11679 | } | |
11680 | } | |
11681 | ||
11682 | return rpi; | |
11683 | } | |
11684 | ||
11685 | /** | |
11686 | * lpfc_sli4_free_rpi - Release an rpi for reuse. | |
11687 | * @phba: pointer to lpfc hba data structure. | |
11688 | * | |
11689 | * This routine is invoked to release an rpi to the pool of | |
11690 | * available rpis maintained by the driver. | |
11691 | **/ | |
11692 | void | |
11693 | lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi) | |
11694 | { | |
11695 | spin_lock_irq(&phba->hbalock); | |
11696 | clear_bit(rpi, phba->sli4_hba.rpi_bmask); | |
11697 | phba->sli4_hba.rpi_count--; | |
11698 | phba->sli4_hba.max_cfg_param.rpi_used--; | |
11699 | spin_unlock_irq(&phba->hbalock); | |
11700 | } | |
11701 | ||
11702 | /** | |
11703 | * lpfc_sli4_remove_rpis - Remove the rpi bitmask region | |
11704 | * @phba: pointer to lpfc hba data structure. | |
11705 | * | |
11706 | * This routine is invoked to remove the memory region that | |
11707 | * provided rpi via a bitmask. | |
11708 | **/ | |
11709 | void | |
11710 | lpfc_sli4_remove_rpis(struct lpfc_hba *phba) | |
11711 | { | |
11712 | kfree(phba->sli4_hba.rpi_bmask); | |
11713 | } | |
11714 | ||
11715 | /** | |
11716 | * lpfc_sli4_resume_rpi - Remove the rpi bitmask region | |
11717 | * @phba: pointer to lpfc hba data structure. | |
11718 | * | |
11719 | * This routine is invoked to remove the memory region that | |
11720 | * provided rpi via a bitmask. | |
11721 | **/ | |
11722 | int | |
11723 | lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp) | |
11724 | { | |
11725 | LPFC_MBOXQ_t *mboxq; | |
11726 | struct lpfc_hba *phba = ndlp->phba; | |
11727 | int rc; | |
11728 | ||
11729 | /* The port is notified of the header region via a mailbox command. */ | |
11730 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
11731 | if (!mboxq) | |
11732 | return -ENOMEM; | |
11733 | ||
11734 | /* Post all rpi memory regions to the port. */ | |
11735 | lpfc_resume_rpi(mboxq, ndlp); | |
11736 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
11737 | if (rc == MBX_NOT_FINISHED) { | |
11738 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11739 | "2010 Resume RPI Mailbox failed " | |
11740 | "status %d, mbxStatus x%x\n", rc, | |
11741 | bf_get(lpfc_mqe_status, &mboxq->u.mqe)); | |
11742 | mempool_free(mboxq, phba->mbox_mem_pool); | |
11743 | return -EIO; | |
11744 | } | |
11745 | return 0; | |
11746 | } | |
11747 | ||
11748 | /** | |
11749 | * lpfc_sli4_init_vpi - Initialize a vpi with the port | |
11750 | * @phba: pointer to lpfc hba data structure. | |
11751 | * @vpi: vpi value to activate with the port. | |
11752 | * | |
11753 | * This routine is invoked to activate a vpi with the | |
11754 | * port when the host intends to use vports with a | |
11755 | * nonzero vpi. | |
11756 | * | |
11757 | * Returns: | |
11758 | * 0 success | |
11759 | * -Evalue otherwise | |
11760 | **/ | |
11761 | int | |
11762 | lpfc_sli4_init_vpi(struct lpfc_hba *phba, uint16_t vpi) | |
11763 | { | |
11764 | LPFC_MBOXQ_t *mboxq; | |
11765 | int rc = 0; | |
6a9c52cf | 11766 | int retval = MBX_SUCCESS; |
6fb120a7 JS |
11767 | uint32_t mbox_tmo; |
11768 | ||
11769 | if (vpi == 0) | |
11770 | return -EINVAL; | |
11771 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
11772 | if (!mboxq) | |
11773 | return -ENOMEM; | |
1c6834a7 | 11774 | lpfc_init_vpi(phba, mboxq, vpi); |
6fb120a7 JS |
11775 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_INIT_VPI); |
11776 | rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); | |
6fb120a7 JS |
11777 | if (rc != MBX_SUCCESS) { |
11778 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11779 | "2022 INIT VPI Mailbox failed " | |
11780 | "status %d, mbxStatus x%x\n", rc, | |
11781 | bf_get(lpfc_mqe_status, &mboxq->u.mqe)); | |
6a9c52cf | 11782 | retval = -EIO; |
6fb120a7 | 11783 | } |
6a9c52cf JS |
11784 | if (rc != MBX_TIMEOUT) |
11785 | mempool_free(mboxq, phba->mbox_mem_pool); | |
11786 | ||
11787 | return retval; | |
6fb120a7 JS |
11788 | } |
11789 | ||
11790 | /** | |
11791 | * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler. | |
11792 | * @phba: pointer to lpfc hba data structure. | |
11793 | * @mboxq: Pointer to mailbox object. | |
11794 | * | |
11795 | * This routine is invoked to manually add a single FCF record. The caller | |
11796 | * must pass a completely initialized FCF_Record. This routine takes | |
11797 | * care of the nonembedded mailbox operations. | |
11798 | **/ | |
11799 | static void | |
11800 | lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) | |
11801 | { | |
11802 | void *virt_addr; | |
11803 | union lpfc_sli4_cfg_shdr *shdr; | |
11804 | uint32_t shdr_status, shdr_add_status; | |
11805 | ||
11806 | virt_addr = mboxq->sge_array->addr[0]; | |
11807 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
11808 | shdr = (union lpfc_sli4_cfg_shdr *) virt_addr; | |
11809 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
11810 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
11811 | ||
11812 | if ((shdr_status || shdr_add_status) && | |
11813 | (shdr_status != STATUS_FCF_IN_USE)) | |
11814 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11815 | "2558 ADD_FCF_RECORD mailbox failed with " | |
11816 | "status x%x add_status x%x\n", | |
11817 | shdr_status, shdr_add_status); | |
11818 | ||
11819 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
11820 | } | |
11821 | ||
11822 | /** | |
11823 | * lpfc_sli4_add_fcf_record - Manually add an FCF Record. | |
11824 | * @phba: pointer to lpfc hba data structure. | |
11825 | * @fcf_record: pointer to the initialized fcf record to add. | |
11826 | * | |
11827 | * This routine is invoked to manually add a single FCF record. The caller | |
11828 | * must pass a completely initialized FCF_Record. This routine takes | |
11829 | * care of the nonembedded mailbox operations. | |
11830 | **/ | |
11831 | int | |
11832 | lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record) | |
11833 | { | |
11834 | int rc = 0; | |
11835 | LPFC_MBOXQ_t *mboxq; | |
11836 | uint8_t *bytep; | |
11837 | void *virt_addr; | |
11838 | dma_addr_t phys_addr; | |
11839 | struct lpfc_mbx_sge sge; | |
11840 | uint32_t alloc_len, req_len; | |
11841 | uint32_t fcfindex; | |
11842 | ||
11843 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
11844 | if (!mboxq) { | |
11845 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11846 | "2009 Failed to allocate mbox for ADD_FCF cmd\n"); | |
11847 | return -ENOMEM; | |
11848 | } | |
11849 | ||
11850 | req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) + | |
11851 | sizeof(uint32_t); | |
11852 | ||
11853 | /* Allocate DMA memory and set up the non-embedded mailbox command */ | |
11854 | alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
11855 | LPFC_MBOX_OPCODE_FCOE_ADD_FCF, | |
11856 | req_len, LPFC_SLI4_MBX_NEMBED); | |
11857 | if (alloc_len < req_len) { | |
11858 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11859 | "2523 Allocated DMA memory size (x%x) is " | |
11860 | "less than the requested DMA memory " | |
11861 | "size (x%x)\n", alloc_len, req_len); | |
11862 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
11863 | return -ENOMEM; | |
11864 | } | |
11865 | ||
11866 | /* | |
11867 | * Get the first SGE entry from the non-embedded DMA memory. This | |
11868 | * routine only uses a single SGE. | |
11869 | */ | |
11870 | lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); | |
11871 | phys_addr = getPaddr(sge.pa_hi, sge.pa_lo); | |
6fb120a7 JS |
11872 | virt_addr = mboxq->sge_array->addr[0]; |
11873 | /* | |
11874 | * Configure the FCF record for FCFI 0. This is the driver's | |
11875 | * hardcoded default and gets used in nonFIP mode. | |
11876 | */ | |
11877 | fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record); | |
11878 | bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr); | |
11879 | lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t)); | |
11880 | ||
11881 | /* | |
11882 | * Copy the fcf_index and the FCF Record Data. The data starts after | |
11883 | * the FCoE header plus word10. The data copy needs to be endian | |
11884 | * correct. | |
11885 | */ | |
11886 | bytep += sizeof(uint32_t); | |
11887 | lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record)); | |
11888 | mboxq->vport = phba->pport; | |
11889 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record; | |
11890 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
11891 | if (rc == MBX_NOT_FINISHED) { | |
11892 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11893 | "2515 ADD_FCF_RECORD mailbox failed with " | |
11894 | "status 0x%x\n", rc); | |
11895 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
11896 | rc = -EIO; | |
11897 | } else | |
11898 | rc = 0; | |
11899 | ||
11900 | return rc; | |
11901 | } | |
11902 | ||
11903 | /** | |
11904 | * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record. | |
11905 | * @phba: pointer to lpfc hba data structure. | |
11906 | * @fcf_record: pointer to the fcf record to write the default data. | |
11907 | * @fcf_index: FCF table entry index. | |
11908 | * | |
11909 | * This routine is invoked to build the driver's default FCF record. The | |
11910 | * values used are hardcoded. This routine handles memory initialization. | |
11911 | * | |
11912 | **/ | |
11913 | void | |
11914 | lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba, | |
11915 | struct fcf_record *fcf_record, | |
11916 | uint16_t fcf_index) | |
11917 | { | |
11918 | memset(fcf_record, 0, sizeof(struct fcf_record)); | |
11919 | fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE; | |
11920 | fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER; | |
11921 | fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY; | |
11922 | bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]); | |
11923 | bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]); | |
11924 | bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]); | |
11925 | bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3); | |
11926 | bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4); | |
11927 | bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5); | |
11928 | bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]); | |
11929 | bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]); | |
11930 | bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]); | |
11931 | bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1); | |
0c287589 | 11932 | bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1); |
6fb120a7 JS |
11933 | bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index); |
11934 | bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record, | |
11935 | LPFC_FCF_FPMA | LPFC_FCF_SPMA); | |
11936 | /* Set the VLAN bit map */ | |
11937 | if (phba->valid_vlan) { | |
11938 | fcf_record->vlan_bitmap[phba->vlan_id / 8] | |
11939 | = 1 << (phba->vlan_id % 8); | |
11940 | } | |
11941 | } | |
11942 | ||
11943 | /** | |
11944 | * lpfc_sli4_read_fcf_record - Read the driver's default FCF Record. | |
11945 | * @phba: pointer to lpfc hba data structure. | |
11946 | * @fcf_index: FCF table entry offset. | |
11947 | * | |
11948 | * This routine is invoked to read up to @fcf_num of FCF record from the | |
11949 | * device starting with the given @fcf_index. | |
11950 | **/ | |
11951 | int | |
11952 | lpfc_sli4_read_fcf_record(struct lpfc_hba *phba, uint16_t fcf_index) | |
11953 | { | |
11954 | int rc = 0, error; | |
11955 | LPFC_MBOXQ_t *mboxq; | |
6fb120a7 | 11956 | |
32b9793f | 11957 | phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag; |
6fb120a7 JS |
11958 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
11959 | if (!mboxq) { | |
11960 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11961 | "2000 Failed to allocate mbox for " | |
11962 | "READ_FCF cmd\n"); | |
4d9ab994 JS |
11963 | error = -ENOMEM; |
11964 | goto fail_fcfscan; | |
6fb120a7 | 11965 | } |
ecfd03c6 JS |
11966 | /* Construct the read FCF record mailbox command */ |
11967 | rc = lpfc_sli4_mbx_read_fcf_record(phba, mboxq, fcf_index); | |
11968 | if (rc) { | |
11969 | error = -EINVAL; | |
4d9ab994 | 11970 | goto fail_fcfscan; |
6fb120a7 | 11971 | } |
ecfd03c6 | 11972 | /* Issue the mailbox command asynchronously */ |
6fb120a7 JS |
11973 | mboxq->vport = phba->pport; |
11974 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_record; | |
11975 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
ecfd03c6 | 11976 | if (rc == MBX_NOT_FINISHED) |
6fb120a7 | 11977 | error = -EIO; |
ecfd03c6 | 11978 | else { |
32b9793f JS |
11979 | spin_lock_irq(&phba->hbalock); |
11980 | phba->hba_flag |= FCF_DISC_INPROGRESS; | |
11981 | spin_unlock_irq(&phba->hbalock); | |
6fb120a7 | 11982 | error = 0; |
32b9793f | 11983 | } |
4d9ab994 JS |
11984 | fail_fcfscan: |
11985 | if (error) { | |
11986 | if (mboxq) | |
11987 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
11988 | /* FCF scan failed, clear FCF_DISC_INPROGRESS flag */ | |
11989 | spin_lock_irq(&phba->hbalock); | |
11990 | phba->hba_flag &= ~FCF_DISC_INPROGRESS; | |
11991 | spin_unlock_irq(&phba->hbalock); | |
11992 | } | |
6fb120a7 JS |
11993 | return error; |
11994 | } | |
a0c87cbd | 11995 | |
ecfd03c6 JS |
11996 | /** |
11997 | * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table | |
11998 | * @phba: pointer to lpfc hba data structure. | |
11999 | * | |
12000 | * This routine is the completion routine for the rediscover FCF table mailbox | |
12001 | * command. If the mailbox command returned failure, it will try to stop the | |
12002 | * FCF rediscover wait timer. | |
12003 | **/ | |
12004 | void | |
12005 | lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox) | |
12006 | { | |
12007 | struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf; | |
12008 | uint32_t shdr_status, shdr_add_status; | |
12009 | ||
12010 | redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl; | |
12011 | ||
12012 | shdr_status = bf_get(lpfc_mbox_hdr_status, | |
12013 | &redisc_fcf->header.cfg_shdr.response); | |
12014 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, | |
12015 | &redisc_fcf->header.cfg_shdr.response); | |
12016 | if (shdr_status || shdr_add_status) { | |
12017 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
12018 | "2746 Requesting for FCF rediscovery failed " | |
12019 | "status x%x add_status x%x\n", | |
12020 | shdr_status, shdr_add_status); | |
12021 | /* | |
12022 | * Request failed, last resort to re-try current | |
12023 | * registered FCF entry | |
12024 | */ | |
12025 | lpfc_retry_pport_discovery(phba); | |
12026 | } else | |
12027 | /* | |
12028 | * Start FCF rediscovery wait timer for pending FCF | |
12029 | * before rescan FCF record table. | |
12030 | */ | |
12031 | lpfc_fcf_redisc_wait_start_timer(phba); | |
12032 | ||
12033 | mempool_free(mbox, phba->mbox_mem_pool); | |
12034 | } | |
12035 | ||
12036 | /** | |
12037 | * lpfc_sli4_redisc_all_fcf - Request to rediscover entire FCF table by port. | |
12038 | * @phba: pointer to lpfc hba data structure. | |
12039 | * | |
12040 | * This routine is invoked to request for rediscovery of the entire FCF table | |
12041 | * by the port. | |
12042 | **/ | |
12043 | int | |
12044 | lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba) | |
12045 | { | |
12046 | LPFC_MBOXQ_t *mbox; | |
12047 | struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf; | |
12048 | int rc, length; | |
12049 | ||
12050 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
12051 | if (!mbox) { | |
12052 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
12053 | "2745 Failed to allocate mbox for " | |
12054 | "requesting FCF rediscover.\n"); | |
12055 | return -ENOMEM; | |
12056 | } | |
12057 | ||
12058 | length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) - | |
12059 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
12060 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
12061 | LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF, | |
12062 | length, LPFC_SLI4_MBX_EMBED); | |
12063 | ||
12064 | redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl; | |
12065 | /* Set count to 0 for invalidating the entire FCF database */ | |
12066 | bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0); | |
12067 | ||
12068 | /* Issue the mailbox command asynchronously */ | |
12069 | mbox->vport = phba->pport; | |
12070 | mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table; | |
12071 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); | |
12072 | ||
12073 | if (rc == MBX_NOT_FINISHED) { | |
12074 | mempool_free(mbox, phba->mbox_mem_pool); | |
12075 | return -EIO; | |
12076 | } | |
12077 | return 0; | |
12078 | } | |
12079 | ||
a0c87cbd JS |
12080 | /** |
12081 | * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled. | |
12082 | * @phba: pointer to lpfc hba data structure. | |
12083 | * | |
12084 | * This function read region 23 and parse TLV for port status to | |
12085 | * decide if the user disaled the port. If the TLV indicates the | |
12086 | * port is disabled, the hba_flag is set accordingly. | |
12087 | **/ | |
12088 | void | |
12089 | lpfc_sli_read_link_ste(struct lpfc_hba *phba) | |
12090 | { | |
12091 | LPFC_MBOXQ_t *pmb = NULL; | |
12092 | MAILBOX_t *mb; | |
12093 | uint8_t *rgn23_data = NULL; | |
12094 | uint32_t offset = 0, data_size, sub_tlv_len, tlv_offset; | |
12095 | int rc; | |
12096 | ||
12097 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
12098 | if (!pmb) { | |
12099 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
12100 | "2600 lpfc_sli_read_serdes_param failed to" | |
12101 | " allocate mailbox memory\n"); | |
12102 | goto out; | |
12103 | } | |
12104 | mb = &pmb->u.mb; | |
12105 | ||
12106 | /* Get adapter Region 23 data */ | |
12107 | rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL); | |
12108 | if (!rgn23_data) | |
12109 | goto out; | |
12110 | ||
12111 | do { | |
12112 | lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23); | |
12113 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
12114 | ||
12115 | if (rc != MBX_SUCCESS) { | |
12116 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
12117 | "2601 lpfc_sli_read_link_ste failed to" | |
12118 | " read config region 23 rc 0x%x Status 0x%x\n", | |
12119 | rc, mb->mbxStatus); | |
12120 | mb->un.varDmp.word_cnt = 0; | |
12121 | } | |
12122 | /* | |
12123 | * dump mem may return a zero when finished or we got a | |
12124 | * mailbox error, either way we are done. | |
12125 | */ | |
12126 | if (mb->un.varDmp.word_cnt == 0) | |
12127 | break; | |
12128 | if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset) | |
12129 | mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset; | |
12130 | ||
12131 | lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, | |
12132 | rgn23_data + offset, | |
12133 | mb->un.varDmp.word_cnt); | |
12134 | offset += mb->un.varDmp.word_cnt; | |
12135 | } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE); | |
12136 | ||
12137 | data_size = offset; | |
12138 | offset = 0; | |
12139 | ||
12140 | if (!data_size) | |
12141 | goto out; | |
12142 | ||
12143 | /* Check the region signature first */ | |
12144 | if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) { | |
12145 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
12146 | "2619 Config region 23 has bad signature\n"); | |
12147 | goto out; | |
12148 | } | |
12149 | offset += 4; | |
12150 | ||
12151 | /* Check the data structure version */ | |
12152 | if (rgn23_data[offset] != LPFC_REGION23_VERSION) { | |
12153 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
12154 | "2620 Config region 23 has bad version\n"); | |
12155 | goto out; | |
12156 | } | |
12157 | offset += 4; | |
12158 | ||
12159 | /* Parse TLV entries in the region */ | |
12160 | while (offset < data_size) { | |
12161 | if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) | |
12162 | break; | |
12163 | /* | |
12164 | * If the TLV is not driver specific TLV or driver id is | |
12165 | * not linux driver id, skip the record. | |
12166 | */ | |
12167 | if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) || | |
12168 | (rgn23_data[offset + 2] != LINUX_DRIVER_ID) || | |
12169 | (rgn23_data[offset + 3] != 0)) { | |
12170 | offset += rgn23_data[offset + 1] * 4 + 4; | |
12171 | continue; | |
12172 | } | |
12173 | ||
12174 | /* Driver found a driver specific TLV in the config region */ | |
12175 | sub_tlv_len = rgn23_data[offset + 1] * 4; | |
12176 | offset += 4; | |
12177 | tlv_offset = 0; | |
12178 | ||
12179 | /* | |
12180 | * Search for configured port state sub-TLV. | |
12181 | */ | |
12182 | while ((offset < data_size) && | |
12183 | (tlv_offset < sub_tlv_len)) { | |
12184 | if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) { | |
12185 | offset += 4; | |
12186 | tlv_offset += 4; | |
12187 | break; | |
12188 | } | |
12189 | if (rgn23_data[offset] != PORT_STE_TYPE) { | |
12190 | offset += rgn23_data[offset + 1] * 4 + 4; | |
12191 | tlv_offset += rgn23_data[offset + 1] * 4 + 4; | |
12192 | continue; | |
12193 | } | |
12194 | ||
12195 | /* This HBA contains PORT_STE configured */ | |
12196 | if (!rgn23_data[offset + 2]) | |
12197 | phba->hba_flag |= LINK_DISABLED; | |
12198 | ||
12199 | goto out; | |
12200 | } | |
12201 | } | |
12202 | out: | |
12203 | if (pmb) | |
12204 | mempool_free(pmb, phba->mbox_mem_pool); | |
12205 | kfree(rgn23_data); | |
12206 | return; | |
12207 | } | |
695a814e JS |
12208 | |
12209 | /** | |
12210 | * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands. | |
12211 | * @vport: pointer to vport data structure. | |
12212 | * | |
12213 | * This function iterate through the mailboxq and clean up all REG_LOGIN | |
12214 | * and REG_VPI mailbox commands associated with the vport. This function | |
12215 | * is called when driver want to restart discovery of the vport due to | |
12216 | * a Clear Virtual Link event. | |
12217 | **/ | |
12218 | void | |
12219 | lpfc_cleanup_pending_mbox(struct lpfc_vport *vport) | |
12220 | { | |
12221 | struct lpfc_hba *phba = vport->phba; | |
12222 | LPFC_MBOXQ_t *mb, *nextmb; | |
12223 | struct lpfc_dmabuf *mp; | |
12224 | ||
12225 | spin_lock_irq(&phba->hbalock); | |
12226 | list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { | |
12227 | if (mb->vport != vport) | |
12228 | continue; | |
12229 | ||
12230 | if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) && | |
12231 | (mb->u.mb.mbxCommand != MBX_REG_VPI)) | |
12232 | continue; | |
12233 | ||
12234 | if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) { | |
12235 | mp = (struct lpfc_dmabuf *) (mb->context1); | |
12236 | if (mp) { | |
12237 | __lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
12238 | kfree(mp); | |
12239 | } | |
12240 | } | |
12241 | list_del(&mb->list); | |
12242 | mempool_free(mb, phba->mbox_mem_pool); | |
12243 | } | |
12244 | mb = phba->sli.mbox_active; | |
12245 | if (mb && (mb->vport == vport)) { | |
12246 | if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) || | |
12247 | (mb->u.mb.mbxCommand == MBX_REG_VPI)) | |
12248 | mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
12249 | } | |
12250 | spin_unlock_irq(&phba->hbalock); | |
12251 | } | |
12252 |