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dea3101e JB |
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 JB |
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 JB |
20 | *******************************************************************/ |
21 | ||
dea3101e JB |
22 | #include <linux/blkdev.h> |
23 | #include <linux/pci.h> | |
24 | #include <linux/interrupt.h> | |
25 | #include <linux/delay.h> | |
5a0e3ad6 | 26 | #include <linux/slab.h> |
dea3101e | 27 | |
91886523 | 28 | #include <scsi/scsi.h> |
dea3101e JB |
29 | #include <scsi/scsi_cmnd.h> |
30 | #include <scsi/scsi_device.h> | |
31 | #include <scsi/scsi_host.h> | |
f888ba3c | 32 | #include <scsi/scsi_transport_fc.h> |
da0436e9 | 33 | #include <scsi/fc/fc_fs.h> |
0d878419 | 34 | #include <linux/aer.h> |
dea3101e | 35 | |
da0436e9 | 36 | #include "lpfc_hw4.h" |
dea3101e JB |
37 | #include "lpfc_hw.h" |
38 | #include "lpfc_sli.h" | |
da0436e9 | 39 | #include "lpfc_sli4.h" |
ea2151b4 | 40 | #include "lpfc_nl.h" |
dea3101e JB |
41 | #include "lpfc_disc.h" |
42 | #include "lpfc_scsi.h" | |
43 | #include "lpfc.h" | |
44 | #include "lpfc_crtn.h" | |
45 | #include "lpfc_logmsg.h" | |
46 | #include "lpfc_compat.h" | |
858c9f6c | 47 | #include "lpfc_debugfs.h" |
04c68496 | 48 | #include "lpfc_vport.h" |
dea3101e JB |
49 | |
50 | /* There are only four IOCB completion types. */ | |
51 | typedef enum _lpfc_iocb_type { | |
52 | LPFC_UNKNOWN_IOCB, | |
53 | LPFC_UNSOL_IOCB, | |
54 | LPFC_SOL_IOCB, | |
55 | LPFC_ABORT_IOCB | |
56 | } lpfc_iocb_type; | |
57 | ||
4f774513 JS |
58 | |
59 | /* Provide function prototypes local to this module. */ | |
60 | static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *, | |
61 | uint32_t); | |
62 | static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *, | |
45ed1190 JS |
63 | uint8_t *, uint32_t *); |
64 | static struct lpfc_iocbq *lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *, | |
65 | struct lpfc_iocbq *); | |
6669f9bb JS |
66 | static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *, |
67 | struct hbq_dmabuf *); | |
4f774513 JS |
68 | static IOCB_t * |
69 | lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq) | |
70 | { | |
71 | return &iocbq->iocb; | |
72 | } | |
73 | ||
74 | /** | |
75 | * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue | |
76 | * @q: The Work Queue to operate on. | |
77 | * @wqe: The work Queue Entry to put on the Work queue. | |
78 | * | |
79 | * This routine will copy the contents of @wqe to the next available entry on | |
80 | * the @q. This function will then ring the Work Queue Doorbell to signal the | |
81 | * HBA to start processing the Work Queue Entry. This function returns 0 if | |
82 | * successful. If no entries are available on @q then this function will return | |
83 | * -ENOMEM. | |
84 | * The caller is expected to hold the hbalock when calling this routine. | |
85 | **/ | |
86 | static uint32_t | |
87 | lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe) | |
88 | { | |
89 | union lpfc_wqe *temp_wqe = q->qe[q->host_index].wqe; | |
90 | struct lpfc_register doorbell; | |
91 | uint32_t host_index; | |
92 | ||
93 | /* If the host has not yet processed the next entry then we are done */ | |
94 | if (((q->host_index + 1) % q->entry_count) == q->hba_index) | |
95 | return -ENOMEM; | |
96 | /* set consumption flag every once in a while */ | |
97 | if (!((q->host_index + 1) % LPFC_RELEASE_NOTIFICATION_INTERVAL)) | |
98 | bf_set(lpfc_wqe_gen_wqec, &wqe->generic, 1); | |
99 | ||
100 | lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size); | |
101 | ||
102 | /* Update the host index before invoking device */ | |
103 | host_index = q->host_index; | |
104 | q->host_index = ((q->host_index + 1) % q->entry_count); | |
105 | ||
106 | /* Ring Doorbell */ | |
107 | doorbell.word0 = 0; | |
108 | bf_set(lpfc_wq_doorbell_num_posted, &doorbell, 1); | |
109 | bf_set(lpfc_wq_doorbell_index, &doorbell, host_index); | |
110 | bf_set(lpfc_wq_doorbell_id, &doorbell, q->queue_id); | |
111 | writel(doorbell.word0, q->phba->sli4_hba.WQDBregaddr); | |
112 | readl(q->phba->sli4_hba.WQDBregaddr); /* Flush */ | |
113 | ||
114 | return 0; | |
115 | } | |
116 | ||
117 | /** | |
118 | * lpfc_sli4_wq_release - Updates internal hba index for WQ | |
119 | * @q: The Work Queue to operate on. | |
120 | * @index: The index to advance the hba index to. | |
121 | * | |
122 | * This routine will update the HBA index of a queue to reflect consumption of | |
123 | * Work Queue Entries by the HBA. When the HBA indicates that it has consumed | |
124 | * an entry the host calls this function to update the queue's internal | |
125 | * pointers. This routine returns the number of entries that were consumed by | |
126 | * the HBA. | |
127 | **/ | |
128 | static uint32_t | |
129 | lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index) | |
130 | { | |
131 | uint32_t released = 0; | |
132 | ||
133 | if (q->hba_index == index) | |
134 | return 0; | |
135 | do { | |
136 | q->hba_index = ((q->hba_index + 1) % q->entry_count); | |
137 | released++; | |
138 | } while (q->hba_index != index); | |
139 | return released; | |
140 | } | |
141 | ||
142 | /** | |
143 | * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue | |
144 | * @q: The Mailbox Queue to operate on. | |
145 | * @wqe: The Mailbox Queue Entry to put on the Work queue. | |
146 | * | |
147 | * This routine will copy the contents of @mqe to the next available entry on | |
148 | * the @q. This function will then ring the Work Queue Doorbell to signal the | |
149 | * HBA to start processing the Work Queue Entry. This function returns 0 if | |
150 | * successful. If no entries are available on @q then this function will return | |
151 | * -ENOMEM. | |
152 | * The caller is expected to hold the hbalock when calling this routine. | |
153 | **/ | |
154 | static uint32_t | |
155 | lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe) | |
156 | { | |
157 | struct lpfc_mqe *temp_mqe = q->qe[q->host_index].mqe; | |
158 | struct lpfc_register doorbell; | |
159 | uint32_t host_index; | |
160 | ||
161 | /* If the host has not yet processed the next entry then we are done */ | |
162 | if (((q->host_index + 1) % q->entry_count) == q->hba_index) | |
163 | return -ENOMEM; | |
164 | lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size); | |
165 | /* Save off the mailbox pointer for completion */ | |
166 | q->phba->mbox = (MAILBOX_t *)temp_mqe; | |
167 | ||
168 | /* Update the host index before invoking device */ | |
169 | host_index = q->host_index; | |
170 | q->host_index = ((q->host_index + 1) % q->entry_count); | |
171 | ||
172 | /* Ring Doorbell */ | |
173 | doorbell.word0 = 0; | |
174 | bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1); | |
175 | bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id); | |
176 | writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr); | |
177 | readl(q->phba->sli4_hba.MQDBregaddr); /* Flush */ | |
178 | return 0; | |
179 | } | |
180 | ||
181 | /** | |
182 | * lpfc_sli4_mq_release - Updates internal hba index for MQ | |
183 | * @q: The Mailbox Queue to operate on. | |
184 | * | |
185 | * This routine will update the HBA index of a queue to reflect consumption of | |
186 | * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed | |
187 | * an entry the host calls this function to update the queue's internal | |
188 | * pointers. This routine returns the number of entries that were consumed by | |
189 | * the HBA. | |
190 | **/ | |
191 | static uint32_t | |
192 | lpfc_sli4_mq_release(struct lpfc_queue *q) | |
193 | { | |
194 | /* Clear the mailbox pointer for completion */ | |
195 | q->phba->mbox = NULL; | |
196 | q->hba_index = ((q->hba_index + 1) % q->entry_count); | |
197 | return 1; | |
198 | } | |
199 | ||
200 | /** | |
201 | * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ | |
202 | * @q: The Event Queue to get the first valid EQE from | |
203 | * | |
204 | * This routine will get the first valid Event Queue Entry from @q, update | |
205 | * the queue's internal hba index, and return the EQE. If no valid EQEs are in | |
206 | * the Queue (no more work to do), or the Queue is full of EQEs that have been | |
207 | * processed, but not popped back to the HBA then this routine will return NULL. | |
208 | **/ | |
209 | static struct lpfc_eqe * | |
210 | lpfc_sli4_eq_get(struct lpfc_queue *q) | |
211 | { | |
212 | struct lpfc_eqe *eqe = q->qe[q->hba_index].eqe; | |
213 | ||
214 | /* If the next EQE is not valid then we are done */ | |
cb5172ea | 215 | if (!bf_get_le32(lpfc_eqe_valid, eqe)) |
4f774513 JS |
216 | return NULL; |
217 | /* If the host has not yet processed the next entry then we are done */ | |
218 | if (((q->hba_index + 1) % q->entry_count) == q->host_index) | |
219 | return NULL; | |
220 | ||
221 | q->hba_index = ((q->hba_index + 1) % q->entry_count); | |
222 | return eqe; | |
223 | } | |
224 | ||
225 | /** | |
226 | * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ | |
227 | * @q: The Event Queue that the host has completed processing for. | |
228 | * @arm: Indicates whether the host wants to arms this CQ. | |
229 | * | |
230 | * This routine will mark all Event Queue Entries on @q, from the last | |
231 | * known completed entry to the last entry that was processed, as completed | |
232 | * by clearing the valid bit for each completion queue entry. Then it will | |
233 | * notify the HBA, by ringing the doorbell, that the EQEs have been processed. | |
234 | * The internal host index in the @q will be updated by this routine to indicate | |
235 | * that the host has finished processing the entries. The @arm parameter | |
236 | * indicates that the queue should be rearmed when ringing the doorbell. | |
237 | * | |
238 | * This function will return the number of EQEs that were popped. | |
239 | **/ | |
240 | uint32_t | |
241 | lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm) | |
242 | { | |
243 | uint32_t released = 0; | |
244 | struct lpfc_eqe *temp_eqe; | |
245 | struct lpfc_register doorbell; | |
246 | ||
247 | /* while there are valid entries */ | |
248 | while (q->hba_index != q->host_index) { | |
249 | temp_eqe = q->qe[q->host_index].eqe; | |
cb5172ea | 250 | bf_set_le32(lpfc_eqe_valid, temp_eqe, 0); |
4f774513 JS |
251 | released++; |
252 | q->host_index = ((q->host_index + 1) % q->entry_count); | |
253 | } | |
254 | if (unlikely(released == 0 && !arm)) | |
255 | return 0; | |
256 | ||
257 | /* ring doorbell for number popped */ | |
258 | doorbell.word0 = 0; | |
259 | if (arm) { | |
260 | bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1); | |
261 | bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1); | |
262 | } | |
263 | bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released); | |
264 | bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT); | |
265 | bf_set(lpfc_eqcq_doorbell_eqid, &doorbell, q->queue_id); | |
266 | writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr); | |
a747c9ce JS |
267 | /* PCI read to flush PCI pipeline on re-arming for INTx mode */ |
268 | if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM)) | |
269 | readl(q->phba->sli4_hba.EQCQDBregaddr); | |
4f774513 JS |
270 | return released; |
271 | } | |
272 | ||
273 | /** | |
274 | * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ | |
275 | * @q: The Completion Queue to get the first valid CQE from | |
276 | * | |
277 | * This routine will get the first valid Completion Queue Entry from @q, update | |
278 | * the queue's internal hba index, and return the CQE. If no valid CQEs are in | |
279 | * the Queue (no more work to do), or the Queue is full of CQEs that have been | |
280 | * processed, but not popped back to the HBA then this routine will return NULL. | |
281 | **/ | |
282 | static struct lpfc_cqe * | |
283 | lpfc_sli4_cq_get(struct lpfc_queue *q) | |
284 | { | |
285 | struct lpfc_cqe *cqe; | |
286 | ||
287 | /* If the next CQE is not valid then we are done */ | |
cb5172ea | 288 | if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe)) |
4f774513 JS |
289 | return NULL; |
290 | /* If the host has not yet processed the next entry then we are done */ | |
291 | if (((q->hba_index + 1) % q->entry_count) == q->host_index) | |
292 | return NULL; | |
293 | ||
294 | cqe = q->qe[q->hba_index].cqe; | |
295 | q->hba_index = ((q->hba_index + 1) % q->entry_count); | |
296 | return cqe; | |
297 | } | |
298 | ||
299 | /** | |
300 | * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ | |
301 | * @q: The Completion Queue that the host has completed processing for. | |
302 | * @arm: Indicates whether the host wants to arms this CQ. | |
303 | * | |
304 | * This routine will mark all Completion queue entries on @q, from the last | |
305 | * known completed entry to the last entry that was processed, as completed | |
306 | * by clearing the valid bit for each completion queue entry. Then it will | |
307 | * notify the HBA, by ringing the doorbell, that the CQEs have been processed. | |
308 | * The internal host index in the @q will be updated by this routine to indicate | |
309 | * that the host has finished processing the entries. The @arm parameter | |
310 | * indicates that the queue should be rearmed when ringing the doorbell. | |
311 | * | |
312 | * This function will return the number of CQEs that were released. | |
313 | **/ | |
314 | uint32_t | |
315 | lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm) | |
316 | { | |
317 | uint32_t released = 0; | |
318 | struct lpfc_cqe *temp_qe; | |
319 | struct lpfc_register doorbell; | |
320 | ||
321 | /* while there are valid entries */ | |
322 | while (q->hba_index != q->host_index) { | |
323 | temp_qe = q->qe[q->host_index].cqe; | |
cb5172ea | 324 | bf_set_le32(lpfc_cqe_valid, temp_qe, 0); |
4f774513 JS |
325 | released++; |
326 | q->host_index = ((q->host_index + 1) % q->entry_count); | |
327 | } | |
328 | if (unlikely(released == 0 && !arm)) | |
329 | return 0; | |
330 | ||
331 | /* ring doorbell for number popped */ | |
332 | doorbell.word0 = 0; | |
333 | if (arm) | |
334 | bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1); | |
335 | bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released); | |
336 | bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION); | |
337 | bf_set(lpfc_eqcq_doorbell_cqid, &doorbell, q->queue_id); | |
338 | writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr); | |
339 | return released; | |
340 | } | |
341 | ||
342 | /** | |
343 | * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue | |
344 | * @q: The Header Receive Queue to operate on. | |
345 | * @wqe: The Receive Queue Entry to put on the Receive queue. | |
346 | * | |
347 | * This routine will copy the contents of @wqe to the next available entry on | |
348 | * the @q. This function will then ring the Receive Queue Doorbell to signal the | |
349 | * HBA to start processing the Receive Queue Entry. This function returns the | |
350 | * index that the rqe was copied to if successful. If no entries are available | |
351 | * on @q then this function will return -ENOMEM. | |
352 | * The caller is expected to hold the hbalock when calling this routine. | |
353 | **/ | |
354 | static int | |
355 | lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq, | |
356 | struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe) | |
357 | { | |
358 | struct lpfc_rqe *temp_hrqe = hq->qe[hq->host_index].rqe; | |
359 | struct lpfc_rqe *temp_drqe = dq->qe[dq->host_index].rqe; | |
360 | struct lpfc_register doorbell; | |
361 | int put_index = hq->host_index; | |
362 | ||
363 | if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ) | |
364 | return -EINVAL; | |
365 | if (hq->host_index != dq->host_index) | |
366 | return -EINVAL; | |
367 | /* If the host has not yet processed the next entry then we are done */ | |
368 | if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index) | |
369 | return -EBUSY; | |
370 | lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size); | |
371 | lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size); | |
372 | ||
373 | /* Update the host index to point to the next slot */ | |
374 | hq->host_index = ((hq->host_index + 1) % hq->entry_count); | |
375 | dq->host_index = ((dq->host_index + 1) % dq->entry_count); | |
376 | ||
377 | /* Ring The Header Receive Queue Doorbell */ | |
378 | if (!(hq->host_index % LPFC_RQ_POST_BATCH)) { | |
379 | doorbell.word0 = 0; | |
380 | bf_set(lpfc_rq_doorbell_num_posted, &doorbell, | |
381 | LPFC_RQ_POST_BATCH); | |
382 | bf_set(lpfc_rq_doorbell_id, &doorbell, hq->queue_id); | |
383 | writel(doorbell.word0, hq->phba->sli4_hba.RQDBregaddr); | |
384 | } | |
385 | return put_index; | |
386 | } | |
387 | ||
388 | /** | |
389 | * lpfc_sli4_rq_release - Updates internal hba index for RQ | |
390 | * @q: The Header Receive Queue to operate on. | |
391 | * | |
392 | * This routine will update the HBA index of a queue to reflect consumption of | |
393 | * one Receive Queue Entry by the HBA. When the HBA indicates that it has | |
394 | * consumed an entry the host calls this function to update the queue's | |
395 | * internal pointers. This routine returns the number of entries that were | |
396 | * consumed by the HBA. | |
397 | **/ | |
398 | static uint32_t | |
399 | lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq) | |
400 | { | |
401 | if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ)) | |
402 | return 0; | |
403 | hq->hba_index = ((hq->hba_index + 1) % hq->entry_count); | |
404 | dq->hba_index = ((dq->hba_index + 1) % dq->entry_count); | |
405 | return 1; | |
406 | } | |
407 | ||
e59058c4 | 408 | /** |
3621a710 | 409 | * lpfc_cmd_iocb - Get next command iocb entry in the ring |
e59058c4 JS |
410 | * @phba: Pointer to HBA context object. |
411 | * @pring: Pointer to driver SLI ring object. | |
412 | * | |
413 | * This function returns pointer to next command iocb entry | |
414 | * in the command ring. The caller must hold hbalock to prevent | |
415 | * other threads consume the next command iocb. | |
416 | * SLI-2/SLI-3 provide different sized iocbs. | |
417 | **/ | |
ed957684 JS |
418 | static inline IOCB_t * |
419 | lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
420 | { | |
421 | return (IOCB_t *) (((char *) pring->cmdringaddr) + | |
422 | pring->cmdidx * phba->iocb_cmd_size); | |
423 | } | |
424 | ||
e59058c4 | 425 | /** |
3621a710 | 426 | * lpfc_resp_iocb - Get next response iocb entry in the ring |
e59058c4 JS |
427 | * @phba: Pointer to HBA context object. |
428 | * @pring: Pointer to driver SLI ring object. | |
429 | * | |
430 | * This function returns pointer to next response iocb entry | |
431 | * in the response ring. The caller must hold hbalock to make sure | |
432 | * that no other thread consume the next response iocb. | |
433 | * SLI-2/SLI-3 provide different sized iocbs. | |
434 | **/ | |
ed957684 JS |
435 | static inline IOCB_t * |
436 | lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
437 | { | |
438 | return (IOCB_t *) (((char *) pring->rspringaddr) + | |
439 | pring->rspidx * phba->iocb_rsp_size); | |
440 | } | |
441 | ||
e59058c4 | 442 | /** |
3621a710 | 443 | * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool |
e59058c4 JS |
444 | * @phba: Pointer to HBA context object. |
445 | * | |
446 | * This function is called with hbalock held. This function | |
447 | * allocates a new driver iocb object from the iocb pool. If the | |
448 | * allocation is successful, it returns pointer to the newly | |
449 | * allocated iocb object else it returns NULL. | |
450 | **/ | |
2e0fef85 JS |
451 | static struct lpfc_iocbq * |
452 | __lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
0bd4ca25 JSEC |
453 | { |
454 | struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list; | |
455 | struct lpfc_iocbq * iocbq = NULL; | |
456 | ||
457 | list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list); | |
2a9bf3d0 JS |
458 | |
459 | if (iocbq) | |
460 | phba->iocb_cnt++; | |
461 | if (phba->iocb_cnt > phba->iocb_max) | |
462 | phba->iocb_max = phba->iocb_cnt; | |
0bd4ca25 JSEC |
463 | return iocbq; |
464 | } | |
465 | ||
da0436e9 JS |
466 | /** |
467 | * __lpfc_clear_active_sglq - Remove the active sglq for this XRI. | |
468 | * @phba: Pointer to HBA context object. | |
469 | * @xritag: XRI value. | |
470 | * | |
471 | * This function clears the sglq pointer from the array of acive | |
472 | * sglq's. The xritag that is passed in is used to index into the | |
473 | * array. Before the xritag can be used it needs to be adjusted | |
474 | * by subtracting the xribase. | |
475 | * | |
476 | * Returns sglq ponter = success, NULL = Failure. | |
477 | **/ | |
478 | static struct lpfc_sglq * | |
479 | __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag) | |
480 | { | |
481 | uint16_t adj_xri; | |
482 | struct lpfc_sglq *sglq; | |
483 | adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base; | |
484 | if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri) | |
485 | return NULL; | |
486 | sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri]; | |
487 | phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = NULL; | |
488 | return sglq; | |
489 | } | |
490 | ||
491 | /** | |
492 | * __lpfc_get_active_sglq - Get the active sglq for this XRI. | |
493 | * @phba: Pointer to HBA context object. | |
494 | * @xritag: XRI value. | |
495 | * | |
496 | * This function returns the sglq pointer from the array of acive | |
497 | * sglq's. The xritag that is passed in is used to index into the | |
498 | * array. Before the xritag can be used it needs to be adjusted | |
499 | * by subtracting the xribase. | |
500 | * | |
501 | * Returns sglq ponter = success, NULL = Failure. | |
502 | **/ | |
0f65ff68 | 503 | struct lpfc_sglq * |
da0436e9 JS |
504 | __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag) |
505 | { | |
506 | uint16_t adj_xri; | |
507 | struct lpfc_sglq *sglq; | |
508 | adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base; | |
509 | if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri) | |
510 | return NULL; | |
511 | sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri]; | |
512 | return sglq; | |
513 | } | |
514 | ||
515 | /** | |
516 | * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool | |
517 | * @phba: Pointer to HBA context object. | |
518 | * | |
519 | * This function is called with hbalock held. This function | |
520 | * Gets a new driver sglq object from the sglq list. If the | |
521 | * list is not empty then it is successful, it returns pointer to the newly | |
522 | * allocated sglq object else it returns NULL. | |
523 | **/ | |
524 | static struct lpfc_sglq * | |
525 | __lpfc_sli_get_sglq(struct lpfc_hba *phba) | |
526 | { | |
527 | struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list; | |
528 | struct lpfc_sglq *sglq = NULL; | |
529 | uint16_t adj_xri; | |
530 | list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list); | |
6a9c52cf JS |
531 | if (!sglq) |
532 | return NULL; | |
da0436e9 JS |
533 | adj_xri = sglq->sli4_xritag - phba->sli4_hba.max_cfg_param.xri_base; |
534 | phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = sglq; | |
0f65ff68 | 535 | sglq->state = SGL_ALLOCATED; |
da0436e9 JS |
536 | return sglq; |
537 | } | |
538 | ||
e59058c4 | 539 | /** |
3621a710 | 540 | * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool |
e59058c4 JS |
541 | * @phba: Pointer to HBA context object. |
542 | * | |
543 | * This function is called with no lock held. This function | |
544 | * allocates a new driver iocb object from the iocb pool. If the | |
545 | * allocation is successful, it returns pointer to the newly | |
546 | * allocated iocb object else it returns NULL. | |
547 | **/ | |
2e0fef85 JS |
548 | struct lpfc_iocbq * |
549 | lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
550 | { | |
551 | struct lpfc_iocbq * iocbq = NULL; | |
552 | unsigned long iflags; | |
553 | ||
554 | spin_lock_irqsave(&phba->hbalock, iflags); | |
555 | iocbq = __lpfc_sli_get_iocbq(phba); | |
556 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
557 | return iocbq; | |
558 | } | |
559 | ||
4f774513 JS |
560 | /** |
561 | * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool | |
562 | * @phba: Pointer to HBA context object. | |
563 | * @iocbq: Pointer to driver iocb object. | |
564 | * | |
565 | * This function is called with hbalock held to release driver | |
566 | * iocb object to the iocb pool. The iotag in the iocb object | |
567 | * does not change for each use of the iocb object. This function | |
568 | * clears all other fields of the iocb object when it is freed. | |
569 | * The sqlq structure that holds the xritag and phys and virtual | |
570 | * mappings for the scatter gather list is retrieved from the | |
571 | * active array of sglq. The get of the sglq pointer also clears | |
572 | * the entry in the array. If the status of the IO indiactes that | |
573 | * this IO was aborted then the sglq entry it put on the | |
574 | * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the | |
575 | * IO has good status or fails for any other reason then the sglq | |
576 | * entry is added to the free list (lpfc_sgl_list). | |
577 | **/ | |
578 | static void | |
579 | __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
580 | { | |
581 | struct lpfc_sglq *sglq; | |
582 | size_t start_clean = offsetof(struct lpfc_iocbq, iocb); | |
2a9bf3d0 JS |
583 | unsigned long iflag = 0; |
584 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
4f774513 JS |
585 | |
586 | if (iocbq->sli4_xritag == NO_XRI) | |
587 | sglq = NULL; | |
588 | else | |
589 | sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_xritag); | |
590 | if (sglq) { | |
0f65ff68 JS |
591 | if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) && |
592 | (sglq->state != SGL_XRI_ABORTED)) { | |
4f774513 JS |
593 | spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock, |
594 | iflag); | |
595 | list_add(&sglq->list, | |
596 | &phba->sli4_hba.lpfc_abts_els_sgl_list); | |
597 | spin_unlock_irqrestore( | |
598 | &phba->sli4_hba.abts_sgl_list_lock, iflag); | |
0f65ff68 JS |
599 | } else { |
600 | sglq->state = SGL_FREED; | |
4f774513 | 601 | list_add(&sglq->list, &phba->sli4_hba.lpfc_sgl_list); |
2a9bf3d0 JS |
602 | |
603 | /* Check if TXQ queue needs to be serviced */ | |
589a52d6 | 604 | if (pring->txq_cnt) |
2a9bf3d0 | 605 | lpfc_worker_wake_up(phba); |
0f65ff68 | 606 | } |
4f774513 JS |
607 | } |
608 | ||
609 | ||
610 | /* | |
611 | * Clean all volatile data fields, preserve iotag and node struct. | |
612 | */ | |
613 | memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); | |
614 | iocbq->sli4_xritag = NO_XRI; | |
615 | list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); | |
616 | } | |
617 | ||
2a9bf3d0 | 618 | |
e59058c4 | 619 | /** |
3772a991 | 620 | * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool |
e59058c4 JS |
621 | * @phba: Pointer to HBA context object. |
622 | * @iocbq: Pointer to driver iocb object. | |
623 | * | |
624 | * This function is called with hbalock held to release driver | |
625 | * iocb object to the iocb pool. The iotag in the iocb object | |
626 | * does not change for each use of the iocb object. This function | |
627 | * clears all other fields of the iocb object when it is freed. | |
628 | **/ | |
a6ababd2 | 629 | static void |
3772a991 | 630 | __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) |
604a3e30 | 631 | { |
2e0fef85 | 632 | size_t start_clean = offsetof(struct lpfc_iocbq, iocb); |
604a3e30 JB |
633 | |
634 | /* | |
635 | * Clean all volatile data fields, preserve iotag and node struct. | |
636 | */ | |
637 | memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); | |
3772a991 | 638 | iocbq->sli4_xritag = NO_XRI; |
604a3e30 JB |
639 | list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); |
640 | } | |
641 | ||
3772a991 JS |
642 | /** |
643 | * __lpfc_sli_release_iocbq - Release iocb to the iocb pool | |
644 | * @phba: Pointer to HBA context object. | |
645 | * @iocbq: Pointer to driver iocb object. | |
646 | * | |
647 | * This function is called with hbalock held to release driver | |
648 | * iocb object to the iocb pool. The iotag in the iocb object | |
649 | * does not change for each use of the iocb object. This function | |
650 | * clears all other fields of the iocb object when it is freed. | |
651 | **/ | |
652 | static void | |
653 | __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
654 | { | |
655 | phba->__lpfc_sli_release_iocbq(phba, iocbq); | |
2a9bf3d0 | 656 | phba->iocb_cnt--; |
3772a991 JS |
657 | } |
658 | ||
e59058c4 | 659 | /** |
3621a710 | 660 | * lpfc_sli_release_iocbq - Release iocb to the iocb pool |
e59058c4 JS |
661 | * @phba: Pointer to HBA context object. |
662 | * @iocbq: Pointer to driver iocb object. | |
663 | * | |
664 | * This function is called with no lock held to release the iocb to | |
665 | * iocb pool. | |
666 | **/ | |
2e0fef85 JS |
667 | void |
668 | lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
669 | { | |
670 | unsigned long iflags; | |
671 | ||
672 | /* | |
673 | * Clean all volatile data fields, preserve iotag and node struct. | |
674 | */ | |
675 | spin_lock_irqsave(&phba->hbalock, iflags); | |
676 | __lpfc_sli_release_iocbq(phba, iocbq); | |
677 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
678 | } | |
679 | ||
a257bf90 JS |
680 | /** |
681 | * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list. | |
682 | * @phba: Pointer to HBA context object. | |
683 | * @iocblist: List of IOCBs. | |
684 | * @ulpstatus: ULP status in IOCB command field. | |
685 | * @ulpWord4: ULP word-4 in IOCB command field. | |
686 | * | |
687 | * This function is called with a list of IOCBs to cancel. It cancels the IOCB | |
688 | * on the list by invoking the complete callback function associated with the | |
689 | * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond | |
690 | * fields. | |
691 | **/ | |
692 | void | |
693 | lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist, | |
694 | uint32_t ulpstatus, uint32_t ulpWord4) | |
695 | { | |
696 | struct lpfc_iocbq *piocb; | |
697 | ||
698 | while (!list_empty(iocblist)) { | |
699 | list_remove_head(iocblist, piocb, struct lpfc_iocbq, list); | |
700 | ||
701 | if (!piocb->iocb_cmpl) | |
702 | lpfc_sli_release_iocbq(phba, piocb); | |
703 | else { | |
704 | piocb->iocb.ulpStatus = ulpstatus; | |
705 | piocb->iocb.un.ulpWord[4] = ulpWord4; | |
706 | (piocb->iocb_cmpl) (phba, piocb, piocb); | |
707 | } | |
708 | } | |
709 | return; | |
710 | } | |
711 | ||
e59058c4 | 712 | /** |
3621a710 JS |
713 | * lpfc_sli_iocb_cmd_type - Get the iocb type |
714 | * @iocb_cmnd: iocb command code. | |
e59058c4 JS |
715 | * |
716 | * This function is called by ring event handler function to get the iocb type. | |
717 | * This function translates the iocb command to an iocb command type used to | |
718 | * decide the final disposition of each completed IOCB. | |
719 | * The function returns | |
720 | * LPFC_UNKNOWN_IOCB if it is an unsupported iocb | |
721 | * LPFC_SOL_IOCB if it is a solicited iocb completion | |
722 | * LPFC_ABORT_IOCB if it is an abort iocb | |
723 | * LPFC_UNSOL_IOCB if it is an unsolicited iocb | |
724 | * | |
725 | * The caller is not required to hold any lock. | |
726 | **/ | |
dea3101e JB |
727 | static lpfc_iocb_type |
728 | lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd) | |
729 | { | |
730 | lpfc_iocb_type type = LPFC_UNKNOWN_IOCB; | |
731 | ||
732 | if (iocb_cmnd > CMD_MAX_IOCB_CMD) | |
733 | return 0; | |
734 | ||
735 | switch (iocb_cmnd) { | |
736 | case CMD_XMIT_SEQUENCE_CR: | |
737 | case CMD_XMIT_SEQUENCE_CX: | |
738 | case CMD_XMIT_BCAST_CN: | |
739 | case CMD_XMIT_BCAST_CX: | |
740 | case CMD_ELS_REQUEST_CR: | |
741 | case CMD_ELS_REQUEST_CX: | |
742 | case CMD_CREATE_XRI_CR: | |
743 | case CMD_CREATE_XRI_CX: | |
744 | case CMD_GET_RPI_CN: | |
745 | case CMD_XMIT_ELS_RSP_CX: | |
746 | case CMD_GET_RPI_CR: | |
747 | case CMD_FCP_IWRITE_CR: | |
748 | case CMD_FCP_IWRITE_CX: | |
749 | case CMD_FCP_IREAD_CR: | |
750 | case CMD_FCP_IREAD_CX: | |
751 | case CMD_FCP_ICMND_CR: | |
752 | case CMD_FCP_ICMND_CX: | |
f5603511 JS |
753 | case CMD_FCP_TSEND_CX: |
754 | case CMD_FCP_TRSP_CX: | |
755 | case CMD_FCP_TRECEIVE_CX: | |
756 | case CMD_FCP_AUTO_TRSP_CX: | |
dea3101e JB |
757 | case CMD_ADAPTER_MSG: |
758 | case CMD_ADAPTER_DUMP: | |
759 | case CMD_XMIT_SEQUENCE64_CR: | |
760 | case CMD_XMIT_SEQUENCE64_CX: | |
761 | case CMD_XMIT_BCAST64_CN: | |
762 | case CMD_XMIT_BCAST64_CX: | |
763 | case CMD_ELS_REQUEST64_CR: | |
764 | case CMD_ELS_REQUEST64_CX: | |
765 | case CMD_FCP_IWRITE64_CR: | |
766 | case CMD_FCP_IWRITE64_CX: | |
767 | case CMD_FCP_IREAD64_CR: | |
768 | case CMD_FCP_IREAD64_CX: | |
769 | case CMD_FCP_ICMND64_CR: | |
770 | case CMD_FCP_ICMND64_CX: | |
f5603511 JS |
771 | case CMD_FCP_TSEND64_CX: |
772 | case CMD_FCP_TRSP64_CX: | |
773 | case CMD_FCP_TRECEIVE64_CX: | |
dea3101e JB |
774 | case CMD_GEN_REQUEST64_CR: |
775 | case CMD_GEN_REQUEST64_CX: | |
776 | case CMD_XMIT_ELS_RSP64_CX: | |
da0436e9 JS |
777 | case DSSCMD_IWRITE64_CR: |
778 | case DSSCMD_IWRITE64_CX: | |
779 | case DSSCMD_IREAD64_CR: | |
780 | case DSSCMD_IREAD64_CX: | |
dea3101e JB |
781 | type = LPFC_SOL_IOCB; |
782 | break; | |
783 | case CMD_ABORT_XRI_CN: | |
784 | case CMD_ABORT_XRI_CX: | |
785 | case CMD_CLOSE_XRI_CN: | |
786 | case CMD_CLOSE_XRI_CX: | |
787 | case CMD_XRI_ABORTED_CX: | |
788 | case CMD_ABORT_MXRI64_CN: | |
6669f9bb | 789 | case CMD_XMIT_BLS_RSP64_CX: |
dea3101e JB |
790 | type = LPFC_ABORT_IOCB; |
791 | break; | |
792 | case CMD_RCV_SEQUENCE_CX: | |
793 | case CMD_RCV_ELS_REQ_CX: | |
794 | case CMD_RCV_SEQUENCE64_CX: | |
795 | case CMD_RCV_ELS_REQ64_CX: | |
57127f15 | 796 | case CMD_ASYNC_STATUS: |
ed957684 JS |
797 | case CMD_IOCB_RCV_SEQ64_CX: |
798 | case CMD_IOCB_RCV_ELS64_CX: | |
799 | case CMD_IOCB_RCV_CONT64_CX: | |
3163f725 | 800 | case CMD_IOCB_RET_XRI64_CX: |
dea3101e JB |
801 | type = LPFC_UNSOL_IOCB; |
802 | break; | |
3163f725 JS |
803 | case CMD_IOCB_XMIT_MSEQ64_CR: |
804 | case CMD_IOCB_XMIT_MSEQ64_CX: | |
805 | case CMD_IOCB_RCV_SEQ_LIST64_CX: | |
806 | case CMD_IOCB_RCV_ELS_LIST64_CX: | |
807 | case CMD_IOCB_CLOSE_EXTENDED_CN: | |
808 | case CMD_IOCB_ABORT_EXTENDED_CN: | |
809 | case CMD_IOCB_RET_HBQE64_CN: | |
810 | case CMD_IOCB_FCP_IBIDIR64_CR: | |
811 | case CMD_IOCB_FCP_IBIDIR64_CX: | |
812 | case CMD_IOCB_FCP_ITASKMGT64_CX: | |
813 | case CMD_IOCB_LOGENTRY_CN: | |
814 | case CMD_IOCB_LOGENTRY_ASYNC_CN: | |
815 | printk("%s - Unhandled SLI-3 Command x%x\n", | |
cadbd4a5 | 816 | __func__, iocb_cmnd); |
3163f725 JS |
817 | type = LPFC_UNKNOWN_IOCB; |
818 | break; | |
dea3101e JB |
819 | default: |
820 | type = LPFC_UNKNOWN_IOCB; | |
821 | break; | |
822 | } | |
823 | ||
824 | return type; | |
825 | } | |
826 | ||
e59058c4 | 827 | /** |
3621a710 | 828 | * lpfc_sli_ring_map - Issue config_ring mbox for all rings |
e59058c4 JS |
829 | * @phba: Pointer to HBA context object. |
830 | * | |
831 | * This function is called from SLI initialization code | |
832 | * to configure every ring of the HBA's SLI interface. The | |
833 | * caller is not required to hold any lock. This function issues | |
834 | * a config_ring mailbox command for each ring. | |
835 | * This function returns zero if successful else returns a negative | |
836 | * error code. | |
837 | **/ | |
dea3101e | 838 | static int |
ed957684 | 839 | lpfc_sli_ring_map(struct lpfc_hba *phba) |
dea3101e JB |
840 | { |
841 | struct lpfc_sli *psli = &phba->sli; | |
ed957684 JS |
842 | LPFC_MBOXQ_t *pmb; |
843 | MAILBOX_t *pmbox; | |
844 | int i, rc, ret = 0; | |
dea3101e | 845 | |
ed957684 JS |
846 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
847 | if (!pmb) | |
848 | return -ENOMEM; | |
04c68496 | 849 | pmbox = &pmb->u.mb; |
ed957684 | 850 | phba->link_state = LPFC_INIT_MBX_CMDS; |
dea3101e | 851 | for (i = 0; i < psli->num_rings; i++) { |
dea3101e JB |
852 | lpfc_config_ring(phba, i, pmb); |
853 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
854 | if (rc != MBX_SUCCESS) { | |
92d7f7b0 | 855 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 856 | "0446 Adapter failed to init (%d), " |
dea3101e JB |
857 | "mbxCmd x%x CFG_RING, mbxStatus x%x, " |
858 | "ring %d\n", | |
e8b62011 JS |
859 | rc, pmbox->mbxCommand, |
860 | pmbox->mbxStatus, i); | |
2e0fef85 | 861 | phba->link_state = LPFC_HBA_ERROR; |
ed957684 JS |
862 | ret = -ENXIO; |
863 | break; | |
dea3101e JB |
864 | } |
865 | } | |
ed957684 JS |
866 | mempool_free(pmb, phba->mbox_mem_pool); |
867 | return ret; | |
dea3101e JB |
868 | } |
869 | ||
e59058c4 | 870 | /** |
3621a710 | 871 | * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq |
e59058c4 JS |
872 | * @phba: Pointer to HBA context object. |
873 | * @pring: Pointer to driver SLI ring object. | |
874 | * @piocb: Pointer to the driver iocb object. | |
875 | * | |
876 | * This function is called with hbalock held. The function adds the | |
877 | * new iocb to txcmplq of the given ring. This function always returns | |
878 | * 0. If this function is called for ELS ring, this function checks if | |
879 | * there is a vport associated with the ELS command. This function also | |
880 | * starts els_tmofunc timer if this is an ELS command. | |
881 | **/ | |
dea3101e | 882 | static int |
2e0fef85 JS |
883 | lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
884 | struct lpfc_iocbq *piocb) | |
dea3101e | 885 | { |
dea3101e | 886 | list_add_tail(&piocb->list, &pring->txcmplq); |
2a9bf3d0 | 887 | piocb->iocb_flag |= LPFC_IO_ON_Q; |
dea3101e | 888 | pring->txcmplq_cnt++; |
2a9bf3d0 JS |
889 | if (pring->txcmplq_cnt > pring->txcmplq_max) |
890 | pring->txcmplq_max = pring->txcmplq_cnt; | |
891 | ||
92d7f7b0 JS |
892 | if ((unlikely(pring->ringno == LPFC_ELS_RING)) && |
893 | (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && | |
894 | (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { | |
895 | if (!piocb->vport) | |
896 | BUG(); | |
897 | else | |
898 | mod_timer(&piocb->vport->els_tmofunc, | |
899 | jiffies + HZ * (phba->fc_ratov << 1)); | |
900 | } | |
901 | ||
dea3101e | 902 | |
2e0fef85 | 903 | return 0; |
dea3101e JB |
904 | } |
905 | ||
e59058c4 | 906 | /** |
3621a710 | 907 | * lpfc_sli_ringtx_get - Get first element of the txq |
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 to get next | |
912 | * iocb in txq of the given ring. If there is any iocb in | |
913 | * the txq, the function returns first iocb in the list after | |
914 | * removing the iocb from the list, else it returns NULL. | |
915 | **/ | |
2a9bf3d0 | 916 | struct lpfc_iocbq * |
2e0fef85 | 917 | lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 918 | { |
dea3101e JB |
919 | struct lpfc_iocbq *cmd_iocb; |
920 | ||
858c9f6c JS |
921 | list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list); |
922 | if (cmd_iocb != NULL) | |
dea3101e | 923 | pring->txq_cnt--; |
2e0fef85 | 924 | return cmd_iocb; |
dea3101e JB |
925 | } |
926 | ||
e59058c4 | 927 | /** |
3621a710 | 928 | * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring |
e59058c4 JS |
929 | * @phba: Pointer to HBA context object. |
930 | * @pring: Pointer to driver SLI ring object. | |
931 | * | |
932 | * This function is called with hbalock held and the caller must post the | |
933 | * iocb without releasing the lock. If the caller releases the lock, | |
934 | * iocb slot returned by the function is not guaranteed to be available. | |
935 | * The function returns pointer to the next available iocb slot if there | |
936 | * is available slot in the ring, else it returns NULL. | |
937 | * If the get index of the ring is ahead of the put index, the function | |
938 | * will post an error attention event to the worker thread to take the | |
939 | * HBA to offline state. | |
940 | **/ | |
dea3101e JB |
941 | static IOCB_t * |
942 | lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
943 | { | |
34b02dcd | 944 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
dea3101e | 945 | uint32_t max_cmd_idx = pring->numCiocb; |
dea3101e JB |
946 | if ((pring->next_cmdidx == pring->cmdidx) && |
947 | (++pring->next_cmdidx >= max_cmd_idx)) | |
948 | pring->next_cmdidx = 0; | |
949 | ||
950 | if (unlikely(pring->local_getidx == pring->next_cmdidx)) { | |
951 | ||
952 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
953 | ||
954 | if (unlikely(pring->local_getidx >= max_cmd_idx)) { | |
955 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 956 | "0315 Ring %d issue: portCmdGet %d " |
025dfdaf | 957 | "is bigger than cmd ring %d\n", |
e8b62011 | 958 | pring->ringno, |
dea3101e JB |
959 | pring->local_getidx, max_cmd_idx); |
960 | ||
2e0fef85 | 961 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
962 | /* |
963 | * All error attention handlers are posted to | |
964 | * worker thread | |
965 | */ | |
966 | phba->work_ha |= HA_ERATT; | |
967 | phba->work_hs = HS_FFER3; | |
92d7f7b0 | 968 | |
5e9d9b82 | 969 | lpfc_worker_wake_up(phba); |
dea3101e JB |
970 | |
971 | return NULL; | |
972 | } | |
973 | ||
974 | if (pring->local_getidx == pring->next_cmdidx) | |
975 | return NULL; | |
976 | } | |
977 | ||
ed957684 | 978 | return lpfc_cmd_iocb(phba, pring); |
dea3101e JB |
979 | } |
980 | ||
e59058c4 | 981 | /** |
3621a710 | 982 | * lpfc_sli_next_iotag - Get an iotag for the iocb |
e59058c4 JS |
983 | * @phba: Pointer to HBA context object. |
984 | * @iocbq: Pointer to driver iocb object. | |
985 | * | |
986 | * This function gets an iotag for the iocb. If there is no unused iotag and | |
987 | * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup | |
988 | * array and assigns a new iotag. | |
989 | * The function returns the allocated iotag if successful, else returns zero. | |
990 | * Zero is not a valid iotag. | |
991 | * The caller is not required to hold any lock. | |
992 | **/ | |
604a3e30 | 993 | uint16_t |
2e0fef85 | 994 | lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) |
dea3101e | 995 | { |
2e0fef85 JS |
996 | struct lpfc_iocbq **new_arr; |
997 | struct lpfc_iocbq **old_arr; | |
604a3e30 JB |
998 | size_t new_len; |
999 | struct lpfc_sli *psli = &phba->sli; | |
1000 | uint16_t iotag; | |
dea3101e | 1001 | |
2e0fef85 | 1002 | spin_lock_irq(&phba->hbalock); |
604a3e30 JB |
1003 | iotag = psli->last_iotag; |
1004 | if(++iotag < psli->iocbq_lookup_len) { | |
1005 | psli->last_iotag = iotag; | |
1006 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 1007 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
1008 | iocbq->iotag = iotag; |
1009 | return iotag; | |
2e0fef85 | 1010 | } else if (psli->iocbq_lookup_len < (0xffff |
604a3e30 JB |
1011 | - LPFC_IOCBQ_LOOKUP_INCREMENT)) { |
1012 | new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT; | |
2e0fef85 JS |
1013 | spin_unlock_irq(&phba->hbalock); |
1014 | new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *), | |
604a3e30 JB |
1015 | GFP_KERNEL); |
1016 | if (new_arr) { | |
2e0fef85 | 1017 | spin_lock_irq(&phba->hbalock); |
604a3e30 JB |
1018 | old_arr = psli->iocbq_lookup; |
1019 | if (new_len <= psli->iocbq_lookup_len) { | |
1020 | /* highly unprobable case */ | |
1021 | kfree(new_arr); | |
1022 | iotag = psli->last_iotag; | |
1023 | if(++iotag < psli->iocbq_lookup_len) { | |
1024 | psli->last_iotag = iotag; | |
1025 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 1026 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
1027 | iocbq->iotag = iotag; |
1028 | return iotag; | |
1029 | } | |
2e0fef85 | 1030 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
1031 | return 0; |
1032 | } | |
1033 | if (psli->iocbq_lookup) | |
1034 | memcpy(new_arr, old_arr, | |
1035 | ((psli->last_iotag + 1) * | |
311464ec | 1036 | sizeof (struct lpfc_iocbq *))); |
604a3e30 JB |
1037 | psli->iocbq_lookup = new_arr; |
1038 | psli->iocbq_lookup_len = new_len; | |
1039 | psli->last_iotag = iotag; | |
1040 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 1041 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
1042 | iocbq->iotag = iotag; |
1043 | kfree(old_arr); | |
1044 | return iotag; | |
1045 | } | |
8f6d98d2 | 1046 | } else |
2e0fef85 | 1047 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 1048 | |
bc73905a | 1049 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 JS |
1050 | "0318 Failed to allocate IOTAG.last IOTAG is %d\n", |
1051 | psli->last_iotag); | |
dea3101e | 1052 | |
604a3e30 | 1053 | return 0; |
dea3101e JB |
1054 | } |
1055 | ||
e59058c4 | 1056 | /** |
3621a710 | 1057 | * lpfc_sli_submit_iocb - Submit an iocb to the firmware |
e59058c4 JS |
1058 | * @phba: Pointer to HBA context object. |
1059 | * @pring: Pointer to driver SLI ring object. | |
1060 | * @iocb: Pointer to iocb slot in the ring. | |
1061 | * @nextiocb: Pointer to driver iocb object which need to be | |
1062 | * posted to firmware. | |
1063 | * | |
1064 | * This function is called with hbalock held to post a new iocb to | |
1065 | * the firmware. This function copies the new iocb to ring iocb slot and | |
1066 | * updates the ring pointers. It adds the new iocb to txcmplq if there is | |
1067 | * a completion call back for this iocb else the function will free the | |
1068 | * iocb object. | |
1069 | **/ | |
dea3101e JB |
1070 | static void |
1071 | lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
1072 | IOCB_t *iocb, struct lpfc_iocbq *nextiocb) | |
1073 | { | |
1074 | /* | |
604a3e30 | 1075 | * Set up an iotag |
dea3101e | 1076 | */ |
604a3e30 | 1077 | nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0; |
dea3101e | 1078 | |
e2a0a9d6 | 1079 | |
a58cbd52 JS |
1080 | if (pring->ringno == LPFC_ELS_RING) { |
1081 | lpfc_debugfs_slow_ring_trc(phba, | |
1082 | "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x", | |
1083 | *(((uint32_t *) &nextiocb->iocb) + 4), | |
1084 | *(((uint32_t *) &nextiocb->iocb) + 6), | |
1085 | *(((uint32_t *) &nextiocb->iocb) + 7)); | |
1086 | } | |
1087 | ||
dea3101e JB |
1088 | /* |
1089 | * Issue iocb command to adapter | |
1090 | */ | |
92d7f7b0 | 1091 | lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size); |
dea3101e JB |
1092 | wmb(); |
1093 | pring->stats.iocb_cmd++; | |
1094 | ||
1095 | /* | |
1096 | * If there is no completion routine to call, we can release the | |
1097 | * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF, | |
1098 | * that have no rsp ring completion, iocb_cmpl MUST be NULL. | |
1099 | */ | |
1100 | if (nextiocb->iocb_cmpl) | |
1101 | lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb); | |
604a3e30 | 1102 | else |
2e0fef85 | 1103 | __lpfc_sli_release_iocbq(phba, nextiocb); |
dea3101e JB |
1104 | |
1105 | /* | |
1106 | * Let the HBA know what IOCB slot will be the next one the | |
1107 | * driver will put a command into. | |
1108 | */ | |
1109 | pring->cmdidx = pring->next_cmdidx; | |
ed957684 | 1110 | writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx); |
dea3101e JB |
1111 | } |
1112 | ||
e59058c4 | 1113 | /** |
3621a710 | 1114 | * lpfc_sli_update_full_ring - Update the chip attention register |
e59058c4 JS |
1115 | * @phba: Pointer to HBA context object. |
1116 | * @pring: Pointer to driver SLI ring object. | |
1117 | * | |
1118 | * The caller is not required to hold any lock for calling this function. | |
1119 | * This function updates the chip attention bits for the ring to inform firmware | |
1120 | * that there are pending work to be done for this ring and requests an | |
1121 | * interrupt when there is space available in the ring. This function is | |
1122 | * called when the driver is unable to post more iocbs to the ring due | |
1123 | * to unavailability of space in the ring. | |
1124 | **/ | |
dea3101e | 1125 | static void |
2e0fef85 | 1126 | lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e JB |
1127 | { |
1128 | int ringno = pring->ringno; | |
1129 | ||
1130 | pring->flag |= LPFC_CALL_RING_AVAILABLE; | |
1131 | ||
1132 | wmb(); | |
1133 | ||
1134 | /* | |
1135 | * Set ring 'ringno' to SET R0CE_REQ in Chip Att register. | |
1136 | * The HBA will tell us when an IOCB entry is available. | |
1137 | */ | |
1138 | writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr); | |
1139 | readl(phba->CAregaddr); /* flush */ | |
1140 | ||
1141 | pring->stats.iocb_cmd_full++; | |
1142 | } | |
1143 | ||
e59058c4 | 1144 | /** |
3621a710 | 1145 | * lpfc_sli_update_ring - Update chip attention register |
e59058c4 JS |
1146 | * @phba: Pointer to HBA context object. |
1147 | * @pring: Pointer to driver SLI ring object. | |
1148 | * | |
1149 | * This function updates the chip attention register bit for the | |
1150 | * given ring to inform HBA that there is more work to be done | |
1151 | * in this ring. The caller is not required to hold any lock. | |
1152 | **/ | |
dea3101e | 1153 | static void |
2e0fef85 | 1154 | lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e JB |
1155 | { |
1156 | int ringno = pring->ringno; | |
1157 | ||
1158 | /* | |
1159 | * Tell the HBA that there is work to do in this ring. | |
1160 | */ | |
34b02dcd JS |
1161 | if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) { |
1162 | wmb(); | |
1163 | writel(CA_R0ATT << (ringno * 4), phba->CAregaddr); | |
1164 | readl(phba->CAregaddr); /* flush */ | |
1165 | } | |
dea3101e JB |
1166 | } |
1167 | ||
e59058c4 | 1168 | /** |
3621a710 | 1169 | * lpfc_sli_resume_iocb - Process iocbs in the txq |
e59058c4 JS |
1170 | * @phba: Pointer to HBA context object. |
1171 | * @pring: Pointer to driver SLI ring object. | |
1172 | * | |
1173 | * This function is called with hbalock held to post pending iocbs | |
1174 | * in the txq to the firmware. This function is called when driver | |
1175 | * detects space available in the ring. | |
1176 | **/ | |
dea3101e | 1177 | static void |
2e0fef85 | 1178 | lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e JB |
1179 | { |
1180 | IOCB_t *iocb; | |
1181 | struct lpfc_iocbq *nextiocb; | |
1182 | ||
1183 | /* | |
1184 | * Check to see if: | |
1185 | * (a) there is anything on the txq to send | |
1186 | * (b) link is up | |
1187 | * (c) link attention events can be processed (fcp ring only) | |
1188 | * (d) IOCB processing is not blocked by the outstanding mbox command. | |
1189 | */ | |
1190 | if (pring->txq_cnt && | |
2e0fef85 | 1191 | lpfc_is_link_up(phba) && |
dea3101e | 1192 | (pring->ringno != phba->sli.fcp_ring || |
0b727fea | 1193 | phba->sli.sli_flag & LPFC_PROCESS_LA)) { |
dea3101e JB |
1194 | |
1195 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && | |
1196 | (nextiocb = lpfc_sli_ringtx_get(phba, pring))) | |
1197 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
1198 | ||
1199 | if (iocb) | |
1200 | lpfc_sli_update_ring(phba, pring); | |
1201 | else | |
1202 | lpfc_sli_update_full_ring(phba, pring); | |
1203 | } | |
1204 | ||
1205 | return; | |
1206 | } | |
1207 | ||
e59058c4 | 1208 | /** |
3621a710 | 1209 | * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ |
e59058c4 JS |
1210 | * @phba: Pointer to HBA context object. |
1211 | * @hbqno: HBQ number. | |
1212 | * | |
1213 | * This function is called with hbalock held to get the next | |
1214 | * available slot for the given HBQ. If there is free slot | |
1215 | * available for the HBQ it will return pointer to the next available | |
1216 | * HBQ entry else it will return NULL. | |
1217 | **/ | |
a6ababd2 | 1218 | static struct lpfc_hbq_entry * |
ed957684 JS |
1219 | lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno) |
1220 | { | |
1221 | struct hbq_s *hbqp = &phba->hbqs[hbqno]; | |
1222 | ||
1223 | if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx && | |
1224 | ++hbqp->next_hbqPutIdx >= hbqp->entry_count) | |
1225 | hbqp->next_hbqPutIdx = 0; | |
1226 | ||
1227 | if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) { | |
92d7f7b0 | 1228 | uint32_t raw_index = phba->hbq_get[hbqno]; |
ed957684 JS |
1229 | uint32_t getidx = le32_to_cpu(raw_index); |
1230 | ||
1231 | hbqp->local_hbqGetIdx = getidx; | |
1232 | ||
1233 | if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) { | |
1234 | lpfc_printf_log(phba, KERN_ERR, | |
92d7f7b0 | 1235 | LOG_SLI | LOG_VPORT, |
e8b62011 | 1236 | "1802 HBQ %d: local_hbqGetIdx " |
ed957684 | 1237 | "%u is > than hbqp->entry_count %u\n", |
e8b62011 | 1238 | hbqno, hbqp->local_hbqGetIdx, |
ed957684 JS |
1239 | hbqp->entry_count); |
1240 | ||
1241 | phba->link_state = LPFC_HBA_ERROR; | |
1242 | return NULL; | |
1243 | } | |
1244 | ||
1245 | if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx) | |
1246 | return NULL; | |
1247 | } | |
1248 | ||
51ef4c26 JS |
1249 | return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt + |
1250 | hbqp->hbqPutIdx; | |
ed957684 JS |
1251 | } |
1252 | ||
e59058c4 | 1253 | /** |
3621a710 | 1254 | * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers |
e59058c4 JS |
1255 | * @phba: Pointer to HBA context object. |
1256 | * | |
1257 | * This function is called with no lock held to free all the | |
1258 | * hbq buffers while uninitializing the SLI interface. It also | |
1259 | * frees the HBQ buffers returned by the firmware but not yet | |
1260 | * processed by the upper layers. | |
1261 | **/ | |
ed957684 JS |
1262 | void |
1263 | lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba) | |
1264 | { | |
92d7f7b0 JS |
1265 | struct lpfc_dmabuf *dmabuf, *next_dmabuf; |
1266 | struct hbq_dmabuf *hbq_buf; | |
3163f725 | 1267 | unsigned long flags; |
51ef4c26 | 1268 | int i, hbq_count; |
3163f725 | 1269 | uint32_t hbqno; |
ed957684 | 1270 | |
51ef4c26 | 1271 | hbq_count = lpfc_sli_hbq_count(); |
ed957684 | 1272 | /* Return all memory used by all HBQs */ |
3163f725 | 1273 | spin_lock_irqsave(&phba->hbalock, flags); |
51ef4c26 JS |
1274 | for (i = 0; i < hbq_count; ++i) { |
1275 | list_for_each_entry_safe(dmabuf, next_dmabuf, | |
1276 | &phba->hbqs[i].hbq_buffer_list, list) { | |
1277 | hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); | |
1278 | list_del(&hbq_buf->dbuf.list); | |
1279 | (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf); | |
1280 | } | |
a8adb832 | 1281 | phba->hbqs[i].buffer_count = 0; |
ed957684 | 1282 | } |
3163f725 | 1283 | /* Return all HBQ buffer that are in-fly */ |
3772a991 JS |
1284 | list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list, |
1285 | list) { | |
3163f725 JS |
1286 | hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); |
1287 | list_del(&hbq_buf->dbuf.list); | |
1288 | if (hbq_buf->tag == -1) { | |
1289 | (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) | |
1290 | (phba, hbq_buf); | |
1291 | } else { | |
1292 | hbqno = hbq_buf->tag >> 16; | |
1293 | if (hbqno >= LPFC_MAX_HBQS) | |
1294 | (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) | |
1295 | (phba, hbq_buf); | |
1296 | else | |
1297 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, | |
1298 | hbq_buf); | |
1299 | } | |
1300 | } | |
1301 | ||
1302 | /* Mark the HBQs not in use */ | |
1303 | phba->hbq_in_use = 0; | |
1304 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
ed957684 JS |
1305 | } |
1306 | ||
e59058c4 | 1307 | /** |
3621a710 | 1308 | * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware |
e59058c4 JS |
1309 | * @phba: Pointer to HBA context object. |
1310 | * @hbqno: HBQ number. | |
1311 | * @hbq_buf: Pointer to HBQ buffer. | |
1312 | * | |
1313 | * This function is called with the hbalock held to post a | |
1314 | * hbq buffer to the firmware. If the function finds an empty | |
1315 | * slot in the HBQ, it will post the buffer. The function will return | |
1316 | * pointer to the hbq entry if it successfully post the buffer | |
1317 | * else it will return NULL. | |
1318 | **/ | |
3772a991 | 1319 | static int |
ed957684 | 1320 | lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno, |
92d7f7b0 | 1321 | struct hbq_dmabuf *hbq_buf) |
3772a991 JS |
1322 | { |
1323 | return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf); | |
1324 | } | |
1325 | ||
1326 | /** | |
1327 | * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware | |
1328 | * @phba: Pointer to HBA context object. | |
1329 | * @hbqno: HBQ number. | |
1330 | * @hbq_buf: Pointer to HBQ buffer. | |
1331 | * | |
1332 | * This function is called with the hbalock held to post a hbq buffer to the | |
1333 | * firmware. If the function finds an empty slot in the HBQ, it will post the | |
1334 | * buffer and place it on the hbq_buffer_list. The function will return zero if | |
1335 | * it successfully post the buffer else it will return an error. | |
1336 | **/ | |
1337 | static int | |
1338 | lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno, | |
1339 | struct hbq_dmabuf *hbq_buf) | |
ed957684 JS |
1340 | { |
1341 | struct lpfc_hbq_entry *hbqe; | |
92d7f7b0 | 1342 | dma_addr_t physaddr = hbq_buf->dbuf.phys; |
ed957684 JS |
1343 | |
1344 | /* Get next HBQ entry slot to use */ | |
1345 | hbqe = lpfc_sli_next_hbq_slot(phba, hbqno); | |
1346 | if (hbqe) { | |
1347 | struct hbq_s *hbqp = &phba->hbqs[hbqno]; | |
1348 | ||
92d7f7b0 JS |
1349 | hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); |
1350 | hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr)); | |
51ef4c26 | 1351 | hbqe->bde.tus.f.bdeSize = hbq_buf->size; |
ed957684 | 1352 | hbqe->bde.tus.f.bdeFlags = 0; |
92d7f7b0 JS |
1353 | hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w); |
1354 | hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag); | |
1355 | /* Sync SLIM */ | |
ed957684 JS |
1356 | hbqp->hbqPutIdx = hbqp->next_hbqPutIdx; |
1357 | writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno); | |
92d7f7b0 | 1358 | /* flush */ |
ed957684 | 1359 | readl(phba->hbq_put + hbqno); |
51ef4c26 | 1360 | list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list); |
3772a991 JS |
1361 | return 0; |
1362 | } else | |
1363 | return -ENOMEM; | |
ed957684 JS |
1364 | } |
1365 | ||
4f774513 JS |
1366 | /** |
1367 | * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware | |
1368 | * @phba: Pointer to HBA context object. | |
1369 | * @hbqno: HBQ number. | |
1370 | * @hbq_buf: Pointer to HBQ buffer. | |
1371 | * | |
1372 | * This function is called with the hbalock held to post an RQE to the SLI4 | |
1373 | * firmware. If able to post the RQE to the RQ it will queue the hbq entry to | |
1374 | * the hbq_buffer_list and return zero, otherwise it will return an error. | |
1375 | **/ | |
1376 | static int | |
1377 | lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno, | |
1378 | struct hbq_dmabuf *hbq_buf) | |
1379 | { | |
1380 | int rc; | |
1381 | struct lpfc_rqe hrqe; | |
1382 | struct lpfc_rqe drqe; | |
1383 | ||
1384 | hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys); | |
1385 | hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys); | |
1386 | drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys); | |
1387 | drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys); | |
1388 | rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, | |
1389 | &hrqe, &drqe); | |
1390 | if (rc < 0) | |
1391 | return rc; | |
1392 | hbq_buf->tag = rc; | |
1393 | list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list); | |
1394 | return 0; | |
1395 | } | |
1396 | ||
e59058c4 | 1397 | /* HBQ for ELS and CT traffic. */ |
92d7f7b0 JS |
1398 | static struct lpfc_hbq_init lpfc_els_hbq = { |
1399 | .rn = 1, | |
def9c7a9 | 1400 | .entry_count = 256, |
92d7f7b0 JS |
1401 | .mask_count = 0, |
1402 | .profile = 0, | |
51ef4c26 | 1403 | .ring_mask = (1 << LPFC_ELS_RING), |
92d7f7b0 | 1404 | .buffer_count = 0, |
a257bf90 JS |
1405 | .init_count = 40, |
1406 | .add_count = 40, | |
92d7f7b0 | 1407 | }; |
ed957684 | 1408 | |
e59058c4 | 1409 | /* HBQ for the extra ring if needed */ |
51ef4c26 JS |
1410 | static struct lpfc_hbq_init lpfc_extra_hbq = { |
1411 | .rn = 1, | |
1412 | .entry_count = 200, | |
1413 | .mask_count = 0, | |
1414 | .profile = 0, | |
1415 | .ring_mask = (1 << LPFC_EXTRA_RING), | |
1416 | .buffer_count = 0, | |
1417 | .init_count = 0, | |
1418 | .add_count = 5, | |
1419 | }; | |
1420 | ||
e59058c4 | 1421 | /* Array of HBQs */ |
78b2d852 | 1422 | struct lpfc_hbq_init *lpfc_hbq_defs[] = { |
92d7f7b0 | 1423 | &lpfc_els_hbq, |
51ef4c26 | 1424 | &lpfc_extra_hbq, |
92d7f7b0 | 1425 | }; |
ed957684 | 1426 | |
e59058c4 | 1427 | /** |
3621a710 | 1428 | * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ |
e59058c4 JS |
1429 | * @phba: Pointer to HBA context object. |
1430 | * @hbqno: HBQ number. | |
1431 | * @count: Number of HBQ buffers to be posted. | |
1432 | * | |
d7c255b2 JS |
1433 | * This function is called with no lock held to post more hbq buffers to the |
1434 | * given HBQ. The function returns the number of HBQ buffers successfully | |
1435 | * posted. | |
e59058c4 | 1436 | **/ |
311464ec | 1437 | static int |
92d7f7b0 | 1438 | lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count) |
ed957684 | 1439 | { |
d7c255b2 | 1440 | uint32_t i, posted = 0; |
3163f725 | 1441 | unsigned long flags; |
92d7f7b0 | 1442 | struct hbq_dmabuf *hbq_buffer; |
d7c255b2 | 1443 | LIST_HEAD(hbq_buf_list); |
eafe1df9 | 1444 | if (!phba->hbqs[hbqno].hbq_alloc_buffer) |
51ef4c26 | 1445 | return 0; |
51ef4c26 | 1446 | |
d7c255b2 JS |
1447 | if ((phba->hbqs[hbqno].buffer_count + count) > |
1448 | lpfc_hbq_defs[hbqno]->entry_count) | |
1449 | count = lpfc_hbq_defs[hbqno]->entry_count - | |
1450 | phba->hbqs[hbqno].buffer_count; | |
1451 | if (!count) | |
1452 | return 0; | |
1453 | /* Allocate HBQ entries */ | |
1454 | for (i = 0; i < count; i++) { | |
1455 | hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba); | |
1456 | if (!hbq_buffer) | |
1457 | break; | |
1458 | list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list); | |
1459 | } | |
3163f725 JS |
1460 | /* Check whether HBQ is still in use */ |
1461 | spin_lock_irqsave(&phba->hbalock, flags); | |
eafe1df9 | 1462 | if (!phba->hbq_in_use) |
d7c255b2 JS |
1463 | goto err; |
1464 | while (!list_empty(&hbq_buf_list)) { | |
1465 | list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf, | |
1466 | dbuf.list); | |
1467 | hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count | | |
1468 | (hbqno << 16)); | |
3772a991 | 1469 | if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) { |
a8adb832 | 1470 | phba->hbqs[hbqno].buffer_count++; |
d7c255b2 JS |
1471 | posted++; |
1472 | } else | |
51ef4c26 | 1473 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); |
ed957684 | 1474 | } |
3163f725 | 1475 | spin_unlock_irqrestore(&phba->hbalock, flags); |
d7c255b2 JS |
1476 | return posted; |
1477 | err: | |
eafe1df9 | 1478 | spin_unlock_irqrestore(&phba->hbalock, flags); |
d7c255b2 JS |
1479 | while (!list_empty(&hbq_buf_list)) { |
1480 | list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf, | |
1481 | dbuf.list); | |
1482 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); | |
1483 | } | |
1484 | return 0; | |
ed957684 JS |
1485 | } |
1486 | ||
e59058c4 | 1487 | /** |
3621a710 | 1488 | * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware |
e59058c4 JS |
1489 | * @phba: Pointer to HBA context object. |
1490 | * @qno: HBQ number. | |
1491 | * | |
1492 | * This function posts more buffers to the HBQ. This function | |
d7c255b2 JS |
1493 | * is called with no lock held. The function returns the number of HBQ entries |
1494 | * successfully allocated. | |
e59058c4 | 1495 | **/ |
92d7f7b0 JS |
1496 | int |
1497 | lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno) | |
ed957684 | 1498 | { |
def9c7a9 JS |
1499 | if (phba->sli_rev == LPFC_SLI_REV4) |
1500 | return 0; | |
1501 | else | |
1502 | return lpfc_sli_hbqbuf_fill_hbqs(phba, qno, | |
1503 | lpfc_hbq_defs[qno]->add_count); | |
92d7f7b0 | 1504 | } |
ed957684 | 1505 | |
e59058c4 | 1506 | /** |
3621a710 | 1507 | * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ |
e59058c4 JS |
1508 | * @phba: Pointer to HBA context object. |
1509 | * @qno: HBQ queue number. | |
1510 | * | |
1511 | * This function is called from SLI initialization code path with | |
1512 | * no lock held to post initial HBQ buffers to firmware. The | |
d7c255b2 | 1513 | * function returns the number of HBQ entries successfully allocated. |
e59058c4 | 1514 | **/ |
a6ababd2 | 1515 | static int |
92d7f7b0 JS |
1516 | lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno) |
1517 | { | |
def9c7a9 JS |
1518 | if (phba->sli_rev == LPFC_SLI_REV4) |
1519 | return lpfc_sli_hbqbuf_fill_hbqs(phba, qno, | |
1520 | lpfc_hbq_defs[qno]->entry_count); | |
1521 | else | |
1522 | return lpfc_sli_hbqbuf_fill_hbqs(phba, qno, | |
1523 | lpfc_hbq_defs[qno]->init_count); | |
ed957684 JS |
1524 | } |
1525 | ||
3772a991 JS |
1526 | /** |
1527 | * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list | |
1528 | * @phba: Pointer to HBA context object. | |
1529 | * @hbqno: HBQ number. | |
1530 | * | |
1531 | * This function removes the first hbq buffer on an hbq list and returns a | |
1532 | * pointer to that buffer. If it finds no buffers on the list it returns NULL. | |
1533 | **/ | |
1534 | static struct hbq_dmabuf * | |
1535 | lpfc_sli_hbqbuf_get(struct list_head *rb_list) | |
1536 | { | |
1537 | struct lpfc_dmabuf *d_buf; | |
1538 | ||
1539 | list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list); | |
1540 | if (!d_buf) | |
1541 | return NULL; | |
1542 | return container_of(d_buf, struct hbq_dmabuf, dbuf); | |
1543 | } | |
1544 | ||
e59058c4 | 1545 | /** |
3621a710 | 1546 | * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag |
e59058c4 JS |
1547 | * @phba: Pointer to HBA context object. |
1548 | * @tag: Tag of the hbq buffer. | |
1549 | * | |
1550 | * This function is called with hbalock held. This function searches | |
1551 | * for the hbq buffer associated with the given tag in the hbq buffer | |
1552 | * list. If it finds the hbq buffer, it returns the hbq_buffer other wise | |
1553 | * it returns NULL. | |
1554 | **/ | |
a6ababd2 | 1555 | static struct hbq_dmabuf * |
92d7f7b0 | 1556 | lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag) |
ed957684 | 1557 | { |
92d7f7b0 JS |
1558 | struct lpfc_dmabuf *d_buf; |
1559 | struct hbq_dmabuf *hbq_buf; | |
51ef4c26 JS |
1560 | uint32_t hbqno; |
1561 | ||
1562 | hbqno = tag >> 16; | |
a0a74e45 | 1563 | if (hbqno >= LPFC_MAX_HBQS) |
51ef4c26 | 1564 | return NULL; |
ed957684 | 1565 | |
3772a991 | 1566 | spin_lock_irq(&phba->hbalock); |
51ef4c26 | 1567 | list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) { |
92d7f7b0 | 1568 | hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); |
51ef4c26 | 1569 | if (hbq_buf->tag == tag) { |
3772a991 | 1570 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 | 1571 | return hbq_buf; |
ed957684 JS |
1572 | } |
1573 | } | |
3772a991 | 1574 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 | 1575 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT, |
e8b62011 | 1576 | "1803 Bad hbq tag. Data: x%x x%x\n", |
a8adb832 | 1577 | tag, phba->hbqs[tag >> 16].buffer_count); |
92d7f7b0 | 1578 | return NULL; |
ed957684 JS |
1579 | } |
1580 | ||
e59058c4 | 1581 | /** |
3621a710 | 1582 | * lpfc_sli_free_hbq - Give back the hbq buffer to firmware |
e59058c4 JS |
1583 | * @phba: Pointer to HBA context object. |
1584 | * @hbq_buffer: Pointer to HBQ buffer. | |
1585 | * | |
1586 | * This function is called with hbalock. This function gives back | |
1587 | * the hbq buffer to firmware. If the HBQ does not have space to | |
1588 | * post the buffer, it will free the buffer. | |
1589 | **/ | |
ed957684 | 1590 | void |
51ef4c26 | 1591 | lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer) |
ed957684 JS |
1592 | { |
1593 | uint32_t hbqno; | |
1594 | ||
51ef4c26 JS |
1595 | if (hbq_buffer) { |
1596 | hbqno = hbq_buffer->tag >> 16; | |
3772a991 | 1597 | if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) |
51ef4c26 | 1598 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); |
ed957684 JS |
1599 | } |
1600 | } | |
1601 | ||
e59058c4 | 1602 | /** |
3621a710 | 1603 | * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox |
e59058c4 JS |
1604 | * @mbxCommand: mailbox command code. |
1605 | * | |
1606 | * This function is called by the mailbox event handler function to verify | |
1607 | * that the completed mailbox command is a legitimate mailbox command. If the | |
1608 | * completed mailbox is not known to the function, it will return MBX_SHUTDOWN | |
1609 | * and the mailbox event handler will take the HBA offline. | |
1610 | **/ | |
dea3101e JB |
1611 | static int |
1612 | lpfc_sli_chk_mbx_command(uint8_t mbxCommand) | |
1613 | { | |
1614 | uint8_t ret; | |
1615 | ||
1616 | switch (mbxCommand) { | |
1617 | case MBX_LOAD_SM: | |
1618 | case MBX_READ_NV: | |
1619 | case MBX_WRITE_NV: | |
a8adb832 | 1620 | case MBX_WRITE_VPARMS: |
dea3101e JB |
1621 | case MBX_RUN_BIU_DIAG: |
1622 | case MBX_INIT_LINK: | |
1623 | case MBX_DOWN_LINK: | |
1624 | case MBX_CONFIG_LINK: | |
1625 | case MBX_CONFIG_RING: | |
1626 | case MBX_RESET_RING: | |
1627 | case MBX_READ_CONFIG: | |
1628 | case MBX_READ_RCONFIG: | |
1629 | case MBX_READ_SPARM: | |
1630 | case MBX_READ_STATUS: | |
1631 | case MBX_READ_RPI: | |
1632 | case MBX_READ_XRI: | |
1633 | case MBX_READ_REV: | |
1634 | case MBX_READ_LNK_STAT: | |
1635 | case MBX_REG_LOGIN: | |
1636 | case MBX_UNREG_LOGIN: | |
1637 | case MBX_READ_LA: | |
1638 | case MBX_CLEAR_LA: | |
1639 | case MBX_DUMP_MEMORY: | |
1640 | case MBX_DUMP_CONTEXT: | |
1641 | case MBX_RUN_DIAGS: | |
1642 | case MBX_RESTART: | |
1643 | case MBX_UPDATE_CFG: | |
1644 | case MBX_DOWN_LOAD: | |
1645 | case MBX_DEL_LD_ENTRY: | |
1646 | case MBX_RUN_PROGRAM: | |
1647 | case MBX_SET_MASK: | |
09372820 | 1648 | case MBX_SET_VARIABLE: |
dea3101e | 1649 | case MBX_UNREG_D_ID: |
41415862 | 1650 | case MBX_KILL_BOARD: |
dea3101e | 1651 | case MBX_CONFIG_FARP: |
41415862 | 1652 | case MBX_BEACON: |
dea3101e JB |
1653 | case MBX_LOAD_AREA: |
1654 | case MBX_RUN_BIU_DIAG64: | |
1655 | case MBX_CONFIG_PORT: | |
1656 | case MBX_READ_SPARM64: | |
1657 | case MBX_READ_RPI64: | |
1658 | case MBX_REG_LOGIN64: | |
1659 | case MBX_READ_LA64: | |
09372820 | 1660 | case MBX_WRITE_WWN: |
dea3101e JB |
1661 | case MBX_SET_DEBUG: |
1662 | case MBX_LOAD_EXP_ROM: | |
57127f15 | 1663 | case MBX_ASYNCEVT_ENABLE: |
92d7f7b0 JS |
1664 | case MBX_REG_VPI: |
1665 | case MBX_UNREG_VPI: | |
858c9f6c | 1666 | case MBX_HEARTBEAT: |
84774a4d JS |
1667 | case MBX_PORT_CAPABILITIES: |
1668 | case MBX_PORT_IOV_CONTROL: | |
04c68496 JS |
1669 | case MBX_SLI4_CONFIG: |
1670 | case MBX_SLI4_REQ_FTRS: | |
1671 | case MBX_REG_FCFI: | |
1672 | case MBX_UNREG_FCFI: | |
1673 | case MBX_REG_VFI: | |
1674 | case MBX_UNREG_VFI: | |
1675 | case MBX_INIT_VPI: | |
1676 | case MBX_INIT_VFI: | |
1677 | case MBX_RESUME_RPI: | |
c7495937 JS |
1678 | case MBX_READ_EVENT_LOG_STATUS: |
1679 | case MBX_READ_EVENT_LOG: | |
dcf2a4e0 JS |
1680 | case MBX_SECURITY_MGMT: |
1681 | case MBX_AUTH_PORT: | |
dea3101e JB |
1682 | ret = mbxCommand; |
1683 | break; | |
1684 | default: | |
1685 | ret = MBX_SHUTDOWN; | |
1686 | break; | |
1687 | } | |
2e0fef85 | 1688 | return ret; |
dea3101e | 1689 | } |
e59058c4 JS |
1690 | |
1691 | /** | |
3621a710 | 1692 | * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler |
e59058c4 JS |
1693 | * @phba: Pointer to HBA context object. |
1694 | * @pmboxq: Pointer to mailbox command. | |
1695 | * | |
1696 | * This is completion handler function for mailbox commands issued from | |
1697 | * lpfc_sli_issue_mbox_wait function. This function is called by the | |
1698 | * mailbox event handler function with no lock held. This function | |
1699 | * will wake up thread waiting on the wait queue pointed by context1 | |
1700 | * of the mailbox. | |
1701 | **/ | |
04c68496 | 1702 | void |
2e0fef85 | 1703 | lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
dea3101e JB |
1704 | { |
1705 | wait_queue_head_t *pdone_q; | |
858c9f6c | 1706 | unsigned long drvr_flag; |
dea3101e JB |
1707 | |
1708 | /* | |
1709 | * If pdone_q is empty, the driver thread gave up waiting and | |
1710 | * continued running. | |
1711 | */ | |
7054a606 | 1712 | pmboxq->mbox_flag |= LPFC_MBX_WAKE; |
858c9f6c | 1713 | spin_lock_irqsave(&phba->hbalock, drvr_flag); |
dea3101e JB |
1714 | pdone_q = (wait_queue_head_t *) pmboxq->context1; |
1715 | if (pdone_q) | |
1716 | wake_up_interruptible(pdone_q); | |
858c9f6c | 1717 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e JB |
1718 | return; |
1719 | } | |
1720 | ||
e59058c4 JS |
1721 | |
1722 | /** | |
3621a710 | 1723 | * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler |
e59058c4 JS |
1724 | * @phba: Pointer to HBA context object. |
1725 | * @pmb: Pointer to mailbox object. | |
1726 | * | |
1727 | * This function is the default mailbox completion handler. It | |
1728 | * frees the memory resources associated with the completed mailbox | |
1729 | * command. If the completed command is a REG_LOGIN mailbox command, | |
1730 | * this function will issue a UREG_LOGIN to re-claim the RPI. | |
1731 | **/ | |
dea3101e | 1732 | void |
2e0fef85 | 1733 | lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
dea3101e | 1734 | { |
d439d286 | 1735 | struct lpfc_vport *vport = pmb->vport; |
dea3101e | 1736 | struct lpfc_dmabuf *mp; |
d439d286 | 1737 | struct lpfc_nodelist *ndlp; |
04c68496 | 1738 | uint16_t rpi, vpi; |
7054a606 JS |
1739 | int rc; |
1740 | ||
dea3101e | 1741 | mp = (struct lpfc_dmabuf *) (pmb->context1); |
7054a606 | 1742 | |
dea3101e JB |
1743 | if (mp) { |
1744 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
1745 | kfree(mp); | |
1746 | } | |
7054a606 | 1747 | |
04c68496 JS |
1748 | if ((pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) && |
1749 | (phba->sli_rev == LPFC_SLI_REV4)) | |
1750 | lpfc_sli4_free_rpi(phba, pmb->u.mb.un.varUnregLogin.rpi); | |
1751 | ||
7054a606 JS |
1752 | /* |
1753 | * If a REG_LOGIN succeeded after node is destroyed or node | |
1754 | * is in re-discovery driver need to cleanup the RPI. | |
1755 | */ | |
2e0fef85 | 1756 | if (!(phba->pport->load_flag & FC_UNLOADING) && |
04c68496 JS |
1757 | pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 && |
1758 | !pmb->u.mb.mbxStatus) { | |
1759 | rpi = pmb->u.mb.un.varWords[0]; | |
1760 | vpi = pmb->u.mb.un.varRegLogin.vpi - phba->vpi_base; | |
1761 | lpfc_unreg_login(phba, vpi, rpi, pmb); | |
92d7f7b0 | 1762 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
7054a606 JS |
1763 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
1764 | if (rc != MBX_NOT_FINISHED) | |
1765 | return; | |
1766 | } | |
1767 | ||
695a814e JS |
1768 | /* Unreg VPI, if the REG_VPI succeed after VLink failure */ |
1769 | if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) && | |
1770 | !(phba->pport->load_flag & FC_UNLOADING) && | |
1771 | !pmb->u.mb.mbxStatus) { | |
1772 | lpfc_unreg_vpi(phba, pmb->u.mb.un.varRegVpi.vpi, pmb); | |
1773 | pmb->vport = vport; | |
1774 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
1775 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
1776 | if (rc != MBX_NOT_FINISHED) | |
1777 | return; | |
1778 | } | |
1779 | ||
d439d286 JS |
1780 | if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) { |
1781 | ndlp = (struct lpfc_nodelist *)pmb->context2; | |
1782 | lpfc_nlp_put(ndlp); | |
1783 | pmb->context2 = NULL; | |
1784 | } | |
1785 | ||
dcf2a4e0 JS |
1786 | /* Check security permission status on INIT_LINK mailbox command */ |
1787 | if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) && | |
1788 | (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION)) | |
1789 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
1790 | "2860 SLI authentication is required " | |
1791 | "for INIT_LINK but has not done yet\n"); | |
1792 | ||
04c68496 JS |
1793 | if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG) |
1794 | lpfc_sli4_mbox_cmd_free(phba, pmb); | |
1795 | else | |
1796 | mempool_free(pmb, phba->mbox_mem_pool); | |
dea3101e JB |
1797 | } |
1798 | ||
e59058c4 | 1799 | /** |
3621a710 | 1800 | * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware |
e59058c4 JS |
1801 | * @phba: Pointer to HBA context object. |
1802 | * | |
1803 | * This function is called with no lock held. This function processes all | |
1804 | * the completed mailbox commands and gives it to upper layers. The interrupt | |
1805 | * service routine processes mailbox completion interrupt and adds completed | |
1806 | * mailbox commands to the mboxq_cmpl queue and signals the worker thread. | |
1807 | * Worker thread call lpfc_sli_handle_mb_event, which will return the | |
1808 | * completed mailbox commands in mboxq_cmpl queue to the upper layers. This | |
1809 | * function returns the mailbox commands to the upper layer by calling the | |
1810 | * completion handler function of each mailbox. | |
1811 | **/ | |
dea3101e | 1812 | int |
2e0fef85 | 1813 | lpfc_sli_handle_mb_event(struct lpfc_hba *phba) |
dea3101e | 1814 | { |
92d7f7b0 | 1815 | MAILBOX_t *pmbox; |
dea3101e | 1816 | LPFC_MBOXQ_t *pmb; |
92d7f7b0 JS |
1817 | int rc; |
1818 | LIST_HEAD(cmplq); | |
dea3101e JB |
1819 | |
1820 | phba->sli.slistat.mbox_event++; | |
1821 | ||
92d7f7b0 JS |
1822 | /* Get all completed mailboxe buffers into the cmplq */ |
1823 | spin_lock_irq(&phba->hbalock); | |
1824 | list_splice_init(&phba->sli.mboxq_cmpl, &cmplq); | |
1825 | spin_unlock_irq(&phba->hbalock); | |
dea3101e | 1826 | |
92d7f7b0 JS |
1827 | /* Get a Mailbox buffer to setup mailbox commands for callback */ |
1828 | do { | |
1829 | list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list); | |
1830 | if (pmb == NULL) | |
1831 | break; | |
2e0fef85 | 1832 | |
04c68496 | 1833 | pmbox = &pmb->u.mb; |
dea3101e | 1834 | |
858c9f6c JS |
1835 | if (pmbox->mbxCommand != MBX_HEARTBEAT) { |
1836 | if (pmb->vport) { | |
1837 | lpfc_debugfs_disc_trc(pmb->vport, | |
1838 | LPFC_DISC_TRC_MBOX_VPORT, | |
1839 | "MBOX cmpl vport: cmd:x%x mb:x%x x%x", | |
1840 | (uint32_t)pmbox->mbxCommand, | |
1841 | pmbox->un.varWords[0], | |
1842 | pmbox->un.varWords[1]); | |
1843 | } | |
1844 | else { | |
1845 | lpfc_debugfs_disc_trc(phba->pport, | |
1846 | LPFC_DISC_TRC_MBOX, | |
1847 | "MBOX cmpl: cmd:x%x mb:x%x x%x", | |
1848 | (uint32_t)pmbox->mbxCommand, | |
1849 | pmbox->un.varWords[0], | |
1850 | pmbox->un.varWords[1]); | |
1851 | } | |
1852 | } | |
1853 | ||
dea3101e JB |
1854 | /* |
1855 | * It is a fatal error if unknown mbox command completion. | |
1856 | */ | |
1857 | if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) == | |
1858 | MBX_SHUTDOWN) { | |
af901ca1 | 1859 | /* Unknown mailbox command compl */ |
92d7f7b0 | 1860 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
e8b62011 | 1861 | "(%d):0323 Unknown Mailbox command " |
04c68496 | 1862 | "x%x (x%x) Cmpl\n", |
92d7f7b0 | 1863 | pmb->vport ? pmb->vport->vpi : 0, |
04c68496 JS |
1864 | pmbox->mbxCommand, |
1865 | lpfc_sli4_mbox_opcode_get(phba, pmb)); | |
2e0fef85 | 1866 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
1867 | phba->work_hs = HS_FFER3; |
1868 | lpfc_handle_eratt(phba); | |
92d7f7b0 | 1869 | continue; |
dea3101e JB |
1870 | } |
1871 | ||
dea3101e JB |
1872 | if (pmbox->mbxStatus) { |
1873 | phba->sli.slistat.mbox_stat_err++; | |
1874 | if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) { | |
1875 | /* Mbox cmd cmpl error - RETRYing */ | |
92d7f7b0 JS |
1876 | lpfc_printf_log(phba, KERN_INFO, |
1877 | LOG_MBOX | LOG_SLI, | |
e8b62011 | 1878 | "(%d):0305 Mbox cmd cmpl " |
92d7f7b0 | 1879 | "error - RETRYing Data: x%x " |
04c68496 | 1880 | "(x%x) x%x x%x x%x\n", |
92d7f7b0 JS |
1881 | pmb->vport ? pmb->vport->vpi :0, |
1882 | pmbox->mbxCommand, | |
04c68496 JS |
1883 | lpfc_sli4_mbox_opcode_get(phba, |
1884 | pmb), | |
92d7f7b0 JS |
1885 | pmbox->mbxStatus, |
1886 | pmbox->un.varWords[0], | |
1887 | pmb->vport->port_state); | |
dea3101e JB |
1888 | pmbox->mbxStatus = 0; |
1889 | pmbox->mbxOwner = OWN_HOST; | |
dea3101e | 1890 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
04c68496 | 1891 | if (rc != MBX_NOT_FINISHED) |
92d7f7b0 | 1892 | continue; |
dea3101e JB |
1893 | } |
1894 | } | |
1895 | ||
1896 | /* Mailbox cmd <cmd> Cmpl <cmpl> */ | |
92d7f7b0 | 1897 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
04c68496 | 1898 | "(%d):0307 Mailbox cmd x%x (x%x) Cmpl x%p " |
dea3101e | 1899 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n", |
92d7f7b0 | 1900 | pmb->vport ? pmb->vport->vpi : 0, |
dea3101e | 1901 | pmbox->mbxCommand, |
04c68496 | 1902 | lpfc_sli4_mbox_opcode_get(phba, pmb), |
dea3101e JB |
1903 | pmb->mbox_cmpl, |
1904 | *((uint32_t *) pmbox), | |
1905 | pmbox->un.varWords[0], | |
1906 | pmbox->un.varWords[1], | |
1907 | pmbox->un.varWords[2], | |
1908 | pmbox->un.varWords[3], | |
1909 | pmbox->un.varWords[4], | |
1910 | pmbox->un.varWords[5], | |
1911 | pmbox->un.varWords[6], | |
1912 | pmbox->un.varWords[7]); | |
1913 | ||
92d7f7b0 | 1914 | if (pmb->mbox_cmpl) |
dea3101e | 1915 | pmb->mbox_cmpl(phba,pmb); |
92d7f7b0 JS |
1916 | } while (1); |
1917 | return 0; | |
1918 | } | |
dea3101e | 1919 | |
e59058c4 | 1920 | /** |
3621a710 | 1921 | * lpfc_sli_get_buff - Get the buffer associated with the buffer tag |
e59058c4 JS |
1922 | * @phba: Pointer to HBA context object. |
1923 | * @pring: Pointer to driver SLI ring object. | |
1924 | * @tag: buffer tag. | |
1925 | * | |
1926 | * This function is called with no lock held. When QUE_BUFTAG_BIT bit | |
1927 | * is set in the tag the buffer is posted for a particular exchange, | |
1928 | * the function will return the buffer without replacing the buffer. | |
1929 | * If the buffer is for unsolicited ELS or CT traffic, this function | |
1930 | * returns the buffer and also posts another buffer to the firmware. | |
1931 | **/ | |
76bb24ef JS |
1932 | static struct lpfc_dmabuf * |
1933 | lpfc_sli_get_buff(struct lpfc_hba *phba, | |
9f1e1b50 JS |
1934 | struct lpfc_sli_ring *pring, |
1935 | uint32_t tag) | |
76bb24ef | 1936 | { |
9f1e1b50 JS |
1937 | struct hbq_dmabuf *hbq_entry; |
1938 | ||
76bb24ef JS |
1939 | if (tag & QUE_BUFTAG_BIT) |
1940 | return lpfc_sli_ring_taggedbuf_get(phba, pring, tag); | |
9f1e1b50 JS |
1941 | hbq_entry = lpfc_sli_hbqbuf_find(phba, tag); |
1942 | if (!hbq_entry) | |
1943 | return NULL; | |
1944 | return &hbq_entry->dbuf; | |
76bb24ef | 1945 | } |
57127f15 | 1946 | |
3772a991 JS |
1947 | /** |
1948 | * lpfc_complete_unsol_iocb - Complete an unsolicited sequence | |
1949 | * @phba: Pointer to HBA context object. | |
1950 | * @pring: Pointer to driver SLI ring object. | |
1951 | * @saveq: Pointer to the iocbq struct representing the sequence starting frame. | |
1952 | * @fch_r_ctl: the r_ctl for the first frame of the sequence. | |
1953 | * @fch_type: the type for the first frame of the sequence. | |
1954 | * | |
1955 | * This function is called with no lock held. This function uses the r_ctl and | |
1956 | * type of the received sequence to find the correct callback function to call | |
1957 | * to process the sequence. | |
1958 | **/ | |
1959 | static int | |
1960 | lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
1961 | struct lpfc_iocbq *saveq, uint32_t fch_r_ctl, | |
1962 | uint32_t fch_type) | |
1963 | { | |
1964 | int i; | |
1965 | ||
1966 | /* unSolicited Responses */ | |
1967 | if (pring->prt[0].profile) { | |
1968 | if (pring->prt[0].lpfc_sli_rcv_unsol_event) | |
1969 | (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring, | |
1970 | saveq); | |
1971 | return 1; | |
1972 | } | |
1973 | /* We must search, based on rctl / type | |
1974 | for the right routine */ | |
1975 | for (i = 0; i < pring->num_mask; i++) { | |
1976 | if ((pring->prt[i].rctl == fch_r_ctl) && | |
1977 | (pring->prt[i].type == fch_type)) { | |
1978 | if (pring->prt[i].lpfc_sli_rcv_unsol_event) | |
1979 | (pring->prt[i].lpfc_sli_rcv_unsol_event) | |
1980 | (phba, pring, saveq); | |
1981 | return 1; | |
1982 | } | |
1983 | } | |
1984 | return 0; | |
1985 | } | |
e59058c4 JS |
1986 | |
1987 | /** | |
3621a710 | 1988 | * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler |
e59058c4 JS |
1989 | * @phba: Pointer to HBA context object. |
1990 | * @pring: Pointer to driver SLI ring object. | |
1991 | * @saveq: Pointer to the unsolicited iocb. | |
1992 | * | |
1993 | * This function is called with no lock held by the ring event handler | |
1994 | * when there is an unsolicited iocb posted to the response ring by the | |
1995 | * firmware. This function gets the buffer associated with the iocbs | |
1996 | * and calls the event handler for the ring. This function handles both | |
1997 | * qring buffers and hbq buffers. | |
1998 | * When the function returns 1 the caller can free the iocb object otherwise | |
1999 | * upper layer functions will free the iocb objects. | |
2000 | **/ | |
dea3101e JB |
2001 | static int |
2002 | lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2003 | struct lpfc_iocbq *saveq) | |
2004 | { | |
2005 | IOCB_t * irsp; | |
2006 | WORD5 * w5p; | |
2007 | uint32_t Rctl, Type; | |
3772a991 | 2008 | uint32_t match; |
76bb24ef | 2009 | struct lpfc_iocbq *iocbq; |
3163f725 | 2010 | struct lpfc_dmabuf *dmzbuf; |
dea3101e JB |
2011 | |
2012 | match = 0; | |
2013 | irsp = &(saveq->iocb); | |
57127f15 JS |
2014 | |
2015 | if (irsp->ulpCommand == CMD_ASYNC_STATUS) { | |
2016 | if (pring->lpfc_sli_rcv_async_status) | |
2017 | pring->lpfc_sli_rcv_async_status(phba, pring, saveq); | |
2018 | else | |
2019 | lpfc_printf_log(phba, | |
2020 | KERN_WARNING, | |
2021 | LOG_SLI, | |
2022 | "0316 Ring %d handler: unexpected " | |
2023 | "ASYNC_STATUS iocb received evt_code " | |
2024 | "0x%x\n", | |
2025 | pring->ringno, | |
2026 | irsp->un.asyncstat.evt_code); | |
2027 | return 1; | |
2028 | } | |
2029 | ||
3163f725 JS |
2030 | if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) && |
2031 | (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) { | |
2032 | if (irsp->ulpBdeCount > 0) { | |
2033 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
2034 | irsp->un.ulpWord[3]); | |
2035 | lpfc_in_buf_free(phba, dmzbuf); | |
2036 | } | |
2037 | ||
2038 | if (irsp->ulpBdeCount > 1) { | |
2039 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
2040 | irsp->unsli3.sli3Words[3]); | |
2041 | lpfc_in_buf_free(phba, dmzbuf); | |
2042 | } | |
2043 | ||
2044 | if (irsp->ulpBdeCount > 2) { | |
2045 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
2046 | irsp->unsli3.sli3Words[7]); | |
2047 | lpfc_in_buf_free(phba, dmzbuf); | |
2048 | } | |
2049 | ||
2050 | return 1; | |
2051 | } | |
2052 | ||
92d7f7b0 | 2053 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
76bb24ef JS |
2054 | if (irsp->ulpBdeCount != 0) { |
2055 | saveq->context2 = lpfc_sli_get_buff(phba, pring, | |
2056 | irsp->un.ulpWord[3]); | |
2057 | if (!saveq->context2) | |
2058 | lpfc_printf_log(phba, | |
2059 | KERN_ERR, | |
2060 | LOG_SLI, | |
2061 | "0341 Ring %d Cannot find buffer for " | |
2062 | "an unsolicited iocb. tag 0x%x\n", | |
2063 | pring->ringno, | |
2064 | irsp->un.ulpWord[3]); | |
76bb24ef JS |
2065 | } |
2066 | if (irsp->ulpBdeCount == 2) { | |
2067 | saveq->context3 = lpfc_sli_get_buff(phba, pring, | |
2068 | irsp->unsli3.sli3Words[7]); | |
2069 | if (!saveq->context3) | |
2070 | lpfc_printf_log(phba, | |
2071 | KERN_ERR, | |
2072 | LOG_SLI, | |
2073 | "0342 Ring %d Cannot find buffer for an" | |
2074 | " unsolicited iocb. tag 0x%x\n", | |
2075 | pring->ringno, | |
2076 | irsp->unsli3.sli3Words[7]); | |
2077 | } | |
2078 | list_for_each_entry(iocbq, &saveq->list, list) { | |
76bb24ef | 2079 | irsp = &(iocbq->iocb); |
76bb24ef JS |
2080 | if (irsp->ulpBdeCount != 0) { |
2081 | iocbq->context2 = lpfc_sli_get_buff(phba, pring, | |
2082 | irsp->un.ulpWord[3]); | |
9c2face6 | 2083 | if (!iocbq->context2) |
76bb24ef JS |
2084 | lpfc_printf_log(phba, |
2085 | KERN_ERR, | |
2086 | LOG_SLI, | |
2087 | "0343 Ring %d Cannot find " | |
2088 | "buffer for an unsolicited iocb" | |
2089 | ". tag 0x%x\n", pring->ringno, | |
92d7f7b0 | 2090 | irsp->un.ulpWord[3]); |
76bb24ef JS |
2091 | } |
2092 | if (irsp->ulpBdeCount == 2) { | |
2093 | iocbq->context3 = lpfc_sli_get_buff(phba, pring, | |
51ef4c26 | 2094 | irsp->unsli3.sli3Words[7]); |
9c2face6 | 2095 | if (!iocbq->context3) |
76bb24ef JS |
2096 | lpfc_printf_log(phba, |
2097 | KERN_ERR, | |
2098 | LOG_SLI, | |
2099 | "0344 Ring %d Cannot find " | |
2100 | "buffer for an unsolicited " | |
2101 | "iocb. tag 0x%x\n", | |
2102 | pring->ringno, | |
2103 | irsp->unsli3.sli3Words[7]); | |
2104 | } | |
2105 | } | |
92d7f7b0 | 2106 | } |
9c2face6 JS |
2107 | if (irsp->ulpBdeCount != 0 && |
2108 | (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX || | |
2109 | irsp->ulpStatus == IOSTAT_INTERMED_RSP)) { | |
2110 | int found = 0; | |
2111 | ||
2112 | /* search continue save q for same XRI */ | |
2113 | list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) { | |
2114 | if (iocbq->iocb.ulpContext == saveq->iocb.ulpContext) { | |
2115 | list_add_tail(&saveq->list, &iocbq->list); | |
2116 | found = 1; | |
2117 | break; | |
2118 | } | |
2119 | } | |
2120 | if (!found) | |
2121 | list_add_tail(&saveq->clist, | |
2122 | &pring->iocb_continue_saveq); | |
2123 | if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) { | |
2124 | list_del_init(&iocbq->clist); | |
2125 | saveq = iocbq; | |
2126 | irsp = &(saveq->iocb); | |
2127 | } else | |
2128 | return 0; | |
2129 | } | |
2130 | if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) || | |
2131 | (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) || | |
2132 | (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) { | |
6a9c52cf JS |
2133 | Rctl = FC_RCTL_ELS_REQ; |
2134 | Type = FC_TYPE_ELS; | |
9c2face6 JS |
2135 | } else { |
2136 | w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]); | |
2137 | Rctl = w5p->hcsw.Rctl; | |
2138 | Type = w5p->hcsw.Type; | |
2139 | ||
2140 | /* Firmware Workaround */ | |
2141 | if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) && | |
2142 | (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX || | |
2143 | irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { | |
6a9c52cf JS |
2144 | Rctl = FC_RCTL_ELS_REQ; |
2145 | Type = FC_TYPE_ELS; | |
9c2face6 JS |
2146 | w5p->hcsw.Rctl = Rctl; |
2147 | w5p->hcsw.Type = Type; | |
2148 | } | |
2149 | } | |
92d7f7b0 | 2150 | |
3772a991 | 2151 | if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type)) |
92d7f7b0 | 2152 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 | 2153 | "0313 Ring %d handler: unexpected Rctl x%x " |
92d7f7b0 | 2154 | "Type x%x received\n", |
e8b62011 | 2155 | pring->ringno, Rctl, Type); |
3772a991 | 2156 | |
92d7f7b0 | 2157 | return 1; |
dea3101e JB |
2158 | } |
2159 | ||
e59058c4 | 2160 | /** |
3621a710 | 2161 | * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb |
e59058c4 JS |
2162 | * @phba: Pointer to HBA context object. |
2163 | * @pring: Pointer to driver SLI ring object. | |
2164 | * @prspiocb: Pointer to response iocb object. | |
2165 | * | |
2166 | * This function looks up the iocb_lookup table to get the command iocb | |
2167 | * corresponding to the given response iocb using the iotag of the | |
2168 | * response iocb. This function is called with the hbalock held. | |
2169 | * This function returns the command iocb object if it finds the command | |
2170 | * iocb else returns NULL. | |
2171 | **/ | |
dea3101e | 2172 | static struct lpfc_iocbq * |
2e0fef85 JS |
2173 | lpfc_sli_iocbq_lookup(struct lpfc_hba *phba, |
2174 | struct lpfc_sli_ring *pring, | |
2175 | struct lpfc_iocbq *prspiocb) | |
dea3101e | 2176 | { |
dea3101e JB |
2177 | struct lpfc_iocbq *cmd_iocb = NULL; |
2178 | uint16_t iotag; | |
2179 | ||
604a3e30 JB |
2180 | iotag = prspiocb->iocb.ulpIoTag; |
2181 | ||
2182 | if (iotag != 0 && iotag <= phba->sli.last_iotag) { | |
2183 | cmd_iocb = phba->sli.iocbq_lookup[iotag]; | |
92d7f7b0 | 2184 | list_del_init(&cmd_iocb->list); |
2a9bf3d0 JS |
2185 | if (cmd_iocb->iocb_flag & LPFC_IO_ON_Q) { |
2186 | pring->txcmplq_cnt--; | |
2187 | cmd_iocb->iocb_flag &= ~LPFC_IO_ON_Q; | |
2188 | } | |
604a3e30 | 2189 | return cmd_iocb; |
dea3101e JB |
2190 | } |
2191 | ||
dea3101e | 2192 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 2193 | "0317 iotag x%x is out off " |
604a3e30 | 2194 | "range: max iotag x%x wd0 x%x\n", |
e8b62011 | 2195 | iotag, phba->sli.last_iotag, |
604a3e30 | 2196 | *(((uint32_t *) &prspiocb->iocb) + 7)); |
dea3101e JB |
2197 | return NULL; |
2198 | } | |
2199 | ||
3772a991 JS |
2200 | /** |
2201 | * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag | |
2202 | * @phba: Pointer to HBA context object. | |
2203 | * @pring: Pointer to driver SLI ring object. | |
2204 | * @iotag: IOCB tag. | |
2205 | * | |
2206 | * This function looks up the iocb_lookup table to get the command iocb | |
2207 | * corresponding to the given iotag. This function is called with the | |
2208 | * hbalock held. | |
2209 | * This function returns the command iocb object if it finds the command | |
2210 | * iocb else returns NULL. | |
2211 | **/ | |
2212 | static struct lpfc_iocbq * | |
2213 | lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba, | |
2214 | struct lpfc_sli_ring *pring, uint16_t iotag) | |
2215 | { | |
2216 | struct lpfc_iocbq *cmd_iocb; | |
2217 | ||
2218 | if (iotag != 0 && iotag <= phba->sli.last_iotag) { | |
2219 | cmd_iocb = phba->sli.iocbq_lookup[iotag]; | |
2220 | list_del_init(&cmd_iocb->list); | |
2a9bf3d0 JS |
2221 | if (cmd_iocb->iocb_flag & LPFC_IO_ON_Q) { |
2222 | cmd_iocb->iocb_flag &= ~LPFC_IO_ON_Q; | |
2223 | pring->txcmplq_cnt--; | |
2224 | } | |
3772a991 JS |
2225 | return cmd_iocb; |
2226 | } | |
2227 | ||
2228 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2229 | "0372 iotag x%x is out off range: max iotag (x%x)\n", | |
2230 | iotag, phba->sli.last_iotag); | |
2231 | return NULL; | |
2232 | } | |
2233 | ||
e59058c4 | 2234 | /** |
3621a710 | 2235 | * lpfc_sli_process_sol_iocb - process solicited iocb completion |
e59058c4 JS |
2236 | * @phba: Pointer to HBA context object. |
2237 | * @pring: Pointer to driver SLI ring object. | |
2238 | * @saveq: Pointer to the response iocb to be processed. | |
2239 | * | |
2240 | * This function is called by the ring event handler for non-fcp | |
2241 | * rings when there is a new response iocb in the response ring. | |
2242 | * The caller is not required to hold any locks. This function | |
2243 | * gets the command iocb associated with the response iocb and | |
2244 | * calls the completion handler for the command iocb. If there | |
2245 | * is no completion handler, the function will free the resources | |
2246 | * associated with command iocb. If the response iocb is for | |
2247 | * an already aborted command iocb, the status of the completion | |
2248 | * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED. | |
2249 | * This function always returns 1. | |
2250 | **/ | |
dea3101e | 2251 | static int |
2e0fef85 | 2252 | lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
dea3101e JB |
2253 | struct lpfc_iocbq *saveq) |
2254 | { | |
2e0fef85 | 2255 | struct lpfc_iocbq *cmdiocbp; |
dea3101e JB |
2256 | int rc = 1; |
2257 | unsigned long iflag; | |
2258 | ||
2259 | /* Based on the iotag field, get the cmd IOCB from the txcmplq */ | |
2e0fef85 | 2260 | spin_lock_irqsave(&phba->hbalock, iflag); |
604a3e30 | 2261 | cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq); |
2e0fef85 JS |
2262 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
2263 | ||
dea3101e JB |
2264 | if (cmdiocbp) { |
2265 | if (cmdiocbp->iocb_cmpl) { | |
ea2151b4 JS |
2266 | /* |
2267 | * If an ELS command failed send an event to mgmt | |
2268 | * application. | |
2269 | */ | |
2270 | if (saveq->iocb.ulpStatus && | |
2271 | (pring->ringno == LPFC_ELS_RING) && | |
2272 | (cmdiocbp->iocb.ulpCommand == | |
2273 | CMD_ELS_REQUEST64_CR)) | |
2274 | lpfc_send_els_failure_event(phba, | |
2275 | cmdiocbp, saveq); | |
2276 | ||
dea3101e JB |
2277 | /* |
2278 | * Post all ELS completions to the worker thread. | |
2279 | * All other are passed to the completion callback. | |
2280 | */ | |
2281 | if (pring->ringno == LPFC_ELS_RING) { | |
341af102 JS |
2282 | if ((phba->sli_rev < LPFC_SLI_REV4) && |
2283 | (cmdiocbp->iocb_flag & | |
2284 | LPFC_DRIVER_ABORTED)) { | |
2285 | spin_lock_irqsave(&phba->hbalock, | |
2286 | iflag); | |
07951076 JS |
2287 | cmdiocbp->iocb_flag &= |
2288 | ~LPFC_DRIVER_ABORTED; | |
341af102 JS |
2289 | spin_unlock_irqrestore(&phba->hbalock, |
2290 | iflag); | |
07951076 JS |
2291 | saveq->iocb.ulpStatus = |
2292 | IOSTAT_LOCAL_REJECT; | |
2293 | saveq->iocb.un.ulpWord[4] = | |
2294 | IOERR_SLI_ABORTED; | |
0ff10d46 JS |
2295 | |
2296 | /* Firmware could still be in progress | |
2297 | * of DMAing payload, so don't free data | |
2298 | * buffer till after a hbeat. | |
2299 | */ | |
341af102 JS |
2300 | spin_lock_irqsave(&phba->hbalock, |
2301 | iflag); | |
0ff10d46 | 2302 | saveq->iocb_flag |= LPFC_DELAY_MEM_FREE; |
341af102 JS |
2303 | spin_unlock_irqrestore(&phba->hbalock, |
2304 | iflag); | |
2305 | } | |
0f65ff68 JS |
2306 | if (phba->sli_rev == LPFC_SLI_REV4) { |
2307 | if (saveq->iocb_flag & | |
2308 | LPFC_EXCHANGE_BUSY) { | |
2309 | /* Set cmdiocb flag for the | |
2310 | * exchange busy so sgl (xri) | |
2311 | * will not be released until | |
2312 | * the abort xri is received | |
2313 | * from hba. | |
2314 | */ | |
2315 | spin_lock_irqsave( | |
2316 | &phba->hbalock, iflag); | |
2317 | cmdiocbp->iocb_flag |= | |
2318 | LPFC_EXCHANGE_BUSY; | |
2319 | spin_unlock_irqrestore( | |
2320 | &phba->hbalock, iflag); | |
2321 | } | |
2322 | if (cmdiocbp->iocb_flag & | |
2323 | LPFC_DRIVER_ABORTED) { | |
2324 | /* | |
2325 | * Clear LPFC_DRIVER_ABORTED | |
2326 | * bit in case it was driver | |
2327 | * initiated abort. | |
2328 | */ | |
2329 | spin_lock_irqsave( | |
2330 | &phba->hbalock, iflag); | |
2331 | cmdiocbp->iocb_flag &= | |
2332 | ~LPFC_DRIVER_ABORTED; | |
2333 | spin_unlock_irqrestore( | |
2334 | &phba->hbalock, iflag); | |
2335 | cmdiocbp->iocb.ulpStatus = | |
2336 | IOSTAT_LOCAL_REJECT; | |
2337 | cmdiocbp->iocb.un.ulpWord[4] = | |
2338 | IOERR_ABORT_REQUESTED; | |
2339 | /* | |
2340 | * For SLI4, irsiocb contains | |
2341 | * NO_XRI in sli_xritag, it | |
2342 | * shall not affect releasing | |
2343 | * sgl (xri) process. | |
2344 | */ | |
2345 | saveq->iocb.ulpStatus = | |
2346 | IOSTAT_LOCAL_REJECT; | |
2347 | saveq->iocb.un.ulpWord[4] = | |
2348 | IOERR_SLI_ABORTED; | |
2349 | spin_lock_irqsave( | |
2350 | &phba->hbalock, iflag); | |
2351 | saveq->iocb_flag |= | |
2352 | LPFC_DELAY_MEM_FREE; | |
2353 | spin_unlock_irqrestore( | |
2354 | &phba->hbalock, iflag); | |
2355 | } | |
07951076 | 2356 | } |
dea3101e | 2357 | } |
2e0fef85 | 2358 | (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); |
604a3e30 JB |
2359 | } else |
2360 | lpfc_sli_release_iocbq(phba, cmdiocbp); | |
dea3101e JB |
2361 | } else { |
2362 | /* | |
2363 | * Unknown initiating command based on the response iotag. | |
2364 | * This could be the case on the ELS ring because of | |
2365 | * lpfc_els_abort(). | |
2366 | */ | |
2367 | if (pring->ringno != LPFC_ELS_RING) { | |
2368 | /* | |
2369 | * Ring <ringno> handler: unexpected completion IoTag | |
2370 | * <IoTag> | |
2371 | */ | |
a257bf90 | 2372 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 JS |
2373 | "0322 Ring %d handler: " |
2374 | "unexpected completion IoTag x%x " | |
2375 | "Data: x%x x%x x%x x%x\n", | |
2376 | pring->ringno, | |
2377 | saveq->iocb.ulpIoTag, | |
2378 | saveq->iocb.ulpStatus, | |
2379 | saveq->iocb.un.ulpWord[4], | |
2380 | saveq->iocb.ulpCommand, | |
2381 | saveq->iocb.ulpContext); | |
dea3101e JB |
2382 | } |
2383 | } | |
68876920 | 2384 | |
dea3101e JB |
2385 | return rc; |
2386 | } | |
2387 | ||
e59058c4 | 2388 | /** |
3621a710 | 2389 | * lpfc_sli_rsp_pointers_error - Response ring pointer error handler |
e59058c4 JS |
2390 | * @phba: Pointer to HBA context object. |
2391 | * @pring: Pointer to driver SLI ring object. | |
2392 | * | |
2393 | * This function is called from the iocb ring event handlers when | |
2394 | * put pointer is ahead of the get pointer for a ring. This function signal | |
2395 | * an error attention condition to the worker thread and the worker | |
2396 | * thread will transition the HBA to offline state. | |
2397 | **/ | |
2e0fef85 JS |
2398 | static void |
2399 | lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
875fbdfe | 2400 | { |
34b02dcd | 2401 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
875fbdfe | 2402 | /* |
025dfdaf | 2403 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger than |
875fbdfe JSEC |
2404 | * rsp ring <portRspMax> |
2405 | */ | |
2406 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 2407 | "0312 Ring %d handler: portRspPut %d " |
025dfdaf | 2408 | "is bigger than rsp ring %d\n", |
e8b62011 | 2409 | pring->ringno, le32_to_cpu(pgp->rspPutInx), |
875fbdfe JSEC |
2410 | pring->numRiocb); |
2411 | ||
2e0fef85 | 2412 | phba->link_state = LPFC_HBA_ERROR; |
875fbdfe JSEC |
2413 | |
2414 | /* | |
2415 | * All error attention handlers are posted to | |
2416 | * worker thread | |
2417 | */ | |
2418 | phba->work_ha |= HA_ERATT; | |
2419 | phba->work_hs = HS_FFER3; | |
92d7f7b0 | 2420 | |
5e9d9b82 | 2421 | lpfc_worker_wake_up(phba); |
875fbdfe JSEC |
2422 | |
2423 | return; | |
2424 | } | |
2425 | ||
9399627f | 2426 | /** |
3621a710 | 2427 | * lpfc_poll_eratt - Error attention polling timer timeout handler |
9399627f JS |
2428 | * @ptr: Pointer to address of HBA context object. |
2429 | * | |
2430 | * This function is invoked by the Error Attention polling timer when the | |
2431 | * timer times out. It will check the SLI Error Attention register for | |
2432 | * possible attention events. If so, it will post an Error Attention event | |
2433 | * and wake up worker thread to process it. Otherwise, it will set up the | |
2434 | * Error Attention polling timer for the next poll. | |
2435 | **/ | |
2436 | void lpfc_poll_eratt(unsigned long ptr) | |
2437 | { | |
2438 | struct lpfc_hba *phba; | |
2439 | uint32_t eratt = 0; | |
2440 | ||
2441 | phba = (struct lpfc_hba *)ptr; | |
2442 | ||
2443 | /* Check chip HA register for error event */ | |
2444 | eratt = lpfc_sli_check_eratt(phba); | |
2445 | ||
2446 | if (eratt) | |
2447 | /* Tell the worker thread there is work to do */ | |
2448 | lpfc_worker_wake_up(phba); | |
2449 | else | |
2450 | /* Restart the timer for next eratt poll */ | |
2451 | mod_timer(&phba->eratt_poll, jiffies + | |
2452 | HZ * LPFC_ERATT_POLL_INTERVAL); | |
2453 | return; | |
2454 | } | |
2455 | ||
875fbdfe | 2456 | |
e59058c4 | 2457 | /** |
3621a710 | 2458 | * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring |
e59058c4 JS |
2459 | * @phba: Pointer to HBA context object. |
2460 | * @pring: Pointer to driver SLI ring object. | |
2461 | * @mask: Host attention register mask for this ring. | |
2462 | * | |
2463 | * This function is called from the interrupt context when there is a ring | |
2464 | * event for the fcp ring. The caller does not hold any lock. | |
2465 | * The function processes each response iocb in the response ring until it | |
2466 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
2467 | * LE bit set. The function will call the completion handler of the command iocb | |
2468 | * if the response iocb indicates a completion for a command iocb or it is | |
2469 | * an abort completion. The function will call lpfc_sli_process_unsol_iocb | |
2470 | * function if this is an unsolicited iocb. | |
dea3101e | 2471 | * This routine presumes LPFC_FCP_RING handling and doesn't bother |
45ed1190 JS |
2472 | * to check it explicitly. |
2473 | */ | |
2474 | int | |
2e0fef85 JS |
2475 | lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba, |
2476 | struct lpfc_sli_ring *pring, uint32_t mask) | |
dea3101e | 2477 | { |
34b02dcd | 2478 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
dea3101e | 2479 | IOCB_t *irsp = NULL; |
87f6eaff | 2480 | IOCB_t *entry = NULL; |
dea3101e JB |
2481 | struct lpfc_iocbq *cmdiocbq = NULL; |
2482 | struct lpfc_iocbq rspiocbq; | |
dea3101e JB |
2483 | uint32_t status; |
2484 | uint32_t portRspPut, portRspMax; | |
2485 | int rc = 1; | |
2486 | lpfc_iocb_type type; | |
2487 | unsigned long iflag; | |
2488 | uint32_t rsp_cmpl = 0; | |
dea3101e | 2489 | |
2e0fef85 | 2490 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e JB |
2491 | pring->stats.iocb_event++; |
2492 | ||
dea3101e JB |
2493 | /* |
2494 | * The next available response entry should never exceed the maximum | |
2495 | * entries. If it does, treat it as an adapter hardware error. | |
2496 | */ | |
2497 | portRspMax = pring->numRiocb; | |
2498 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2499 | if (unlikely(portRspPut >= portRspMax)) { | |
875fbdfe | 2500 | lpfc_sli_rsp_pointers_error(phba, pring); |
2e0fef85 | 2501 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e JB |
2502 | return 1; |
2503 | } | |
45ed1190 JS |
2504 | if (phba->fcp_ring_in_use) { |
2505 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2506 | return 1; | |
2507 | } else | |
2508 | phba->fcp_ring_in_use = 1; | |
dea3101e JB |
2509 | |
2510 | rmb(); | |
2511 | while (pring->rspidx != portRspPut) { | |
87f6eaff JSEC |
2512 | /* |
2513 | * Fetch an entry off the ring and copy it into a local data | |
2514 | * structure. The copy involves a byte-swap since the | |
2515 | * network byte order and pci byte orders are different. | |
2516 | */ | |
ed957684 | 2517 | entry = lpfc_resp_iocb(phba, pring); |
858c9f6c | 2518 | phba->last_completion_time = jiffies; |
875fbdfe JSEC |
2519 | |
2520 | if (++pring->rspidx >= portRspMax) | |
2521 | pring->rspidx = 0; | |
2522 | ||
87f6eaff JSEC |
2523 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, |
2524 | (uint32_t *) &rspiocbq.iocb, | |
ed957684 | 2525 | phba->iocb_rsp_size); |
a4bc3379 | 2526 | INIT_LIST_HEAD(&(rspiocbq.list)); |
87f6eaff JSEC |
2527 | irsp = &rspiocbq.iocb; |
2528 | ||
dea3101e JB |
2529 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); |
2530 | pring->stats.iocb_rsp++; | |
2531 | rsp_cmpl++; | |
2532 | ||
2533 | if (unlikely(irsp->ulpStatus)) { | |
92d7f7b0 JS |
2534 | /* |
2535 | * If resource errors reported from HBA, reduce | |
2536 | * queuedepths of the SCSI device. | |
2537 | */ | |
2538 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
2539 | (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { | |
2540 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
3772a991 | 2541 | phba->lpfc_rampdown_queue_depth(phba); |
92d7f7b0 JS |
2542 | spin_lock_irqsave(&phba->hbalock, iflag); |
2543 | } | |
2544 | ||
dea3101e JB |
2545 | /* Rsp ring <ringno> error: IOCB */ |
2546 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
e8b62011 | 2547 | "0336 Rsp Ring %d error: IOCB Data: " |
92d7f7b0 | 2548 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", |
e8b62011 | 2549 | pring->ringno, |
92d7f7b0 JS |
2550 | irsp->un.ulpWord[0], |
2551 | irsp->un.ulpWord[1], | |
2552 | irsp->un.ulpWord[2], | |
2553 | irsp->un.ulpWord[3], | |
2554 | irsp->un.ulpWord[4], | |
2555 | irsp->un.ulpWord[5], | |
d7c255b2 JS |
2556 | *(uint32_t *)&irsp->un1, |
2557 | *((uint32_t *)&irsp->un1 + 1)); | |
dea3101e JB |
2558 | } |
2559 | ||
2560 | switch (type) { | |
2561 | case LPFC_ABORT_IOCB: | |
2562 | case LPFC_SOL_IOCB: | |
2563 | /* | |
2564 | * Idle exchange closed via ABTS from port. No iocb | |
2565 | * resources need to be recovered. | |
2566 | */ | |
2567 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
dca9479b | 2568 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 | 2569 | "0333 IOCB cmd 0x%x" |
dca9479b | 2570 | " processed. Skipping" |
92d7f7b0 | 2571 | " completion\n", |
dca9479b | 2572 | irsp->ulpCommand); |
dea3101e JB |
2573 | break; |
2574 | } | |
2575 | ||
604a3e30 JB |
2576 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
2577 | &rspiocbq); | |
0f65ff68 JS |
2578 | if (unlikely(!cmdiocbq)) |
2579 | break; | |
2580 | if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) | |
2581 | cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED; | |
2582 | if (cmdiocbq->iocb_cmpl) { | |
2583 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2584 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
2585 | &rspiocbq); | |
2586 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2587 | } | |
dea3101e | 2588 | break; |
a4bc3379 | 2589 | case LPFC_UNSOL_IOCB: |
2e0fef85 | 2590 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
a4bc3379 | 2591 | lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq); |
2e0fef85 | 2592 | spin_lock_irqsave(&phba->hbalock, iflag); |
a4bc3379 | 2593 | break; |
dea3101e JB |
2594 | default: |
2595 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
2596 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
2597 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
2598 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
2599 | MAX_MSG_DATA); | |
898eb71c JP |
2600 | dev_warn(&((phba->pcidev)->dev), |
2601 | "lpfc%d: %s\n", | |
dea3101e JB |
2602 | phba->brd_no, adaptermsg); |
2603 | } else { | |
2604 | /* Unknown IOCB command */ | |
2605 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 2606 | "0334 Unknown IOCB command " |
92d7f7b0 | 2607 | "Data: x%x, x%x x%x x%x x%x\n", |
e8b62011 | 2608 | type, irsp->ulpCommand, |
92d7f7b0 JS |
2609 | irsp->ulpStatus, |
2610 | irsp->ulpIoTag, | |
2611 | irsp->ulpContext); | |
dea3101e JB |
2612 | } |
2613 | break; | |
2614 | } | |
2615 | ||
2616 | /* | |
2617 | * The response IOCB has been processed. Update the ring | |
2618 | * pointer in SLIM. If the port response put pointer has not | |
2619 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
2620 | * response put pointer. | |
2621 | */ | |
ed957684 | 2622 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
dea3101e JB |
2623 | |
2624 | if (pring->rspidx == portRspPut) | |
2625 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2626 | } | |
2627 | ||
2628 | if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) { | |
2629 | pring->stats.iocb_rsp_full++; | |
2630 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
2631 | writel(status, phba->CAregaddr); | |
2632 | readl(phba->CAregaddr); | |
2633 | } | |
2634 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2635 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2636 | pring->stats.iocb_cmd_empty++; | |
2637 | ||
2638 | /* Force update of the local copy of cmdGetInx */ | |
2639 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2640 | lpfc_sli_resume_iocb(phba, pring); | |
2641 | ||
2642 | if ((pring->lpfc_sli_cmd_available)) | |
2643 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2644 | ||
2645 | } | |
2646 | ||
45ed1190 | 2647 | phba->fcp_ring_in_use = 0; |
2e0fef85 | 2648 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e JB |
2649 | return rc; |
2650 | } | |
2651 | ||
e59058c4 | 2652 | /** |
3772a991 JS |
2653 | * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb |
2654 | * @phba: Pointer to HBA context object. | |
2655 | * @pring: Pointer to driver SLI ring object. | |
2656 | * @rspiocbp: Pointer to driver response IOCB object. | |
2657 | * | |
2658 | * This function is called from the worker thread when there is a slow-path | |
2659 | * response IOCB to process. This function chains all the response iocbs until | |
2660 | * seeing the iocb with the LE bit set. The function will call | |
2661 | * lpfc_sli_process_sol_iocb function if the response iocb indicates a | |
2662 | * completion of a command iocb. The function will call the | |
2663 | * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb. | |
2664 | * The function frees the resources or calls the completion handler if this | |
2665 | * iocb is an abort completion. The function returns NULL when the response | |
2666 | * iocb has the LE bit set and all the chained iocbs are processed, otherwise | |
2667 | * this function shall chain the iocb on to the iocb_continueq and return the | |
2668 | * response iocb passed in. | |
2669 | **/ | |
2670 | static struct lpfc_iocbq * | |
2671 | lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2672 | struct lpfc_iocbq *rspiocbp) | |
2673 | { | |
2674 | struct lpfc_iocbq *saveq; | |
2675 | struct lpfc_iocbq *cmdiocbp; | |
2676 | struct lpfc_iocbq *next_iocb; | |
2677 | IOCB_t *irsp = NULL; | |
2678 | uint32_t free_saveq; | |
2679 | uint8_t iocb_cmd_type; | |
2680 | lpfc_iocb_type type; | |
2681 | unsigned long iflag; | |
2682 | int rc; | |
2683 | ||
2684 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2685 | /* First add the response iocb to the countinueq list */ | |
2686 | list_add_tail(&rspiocbp->list, &(pring->iocb_continueq)); | |
2687 | pring->iocb_continueq_cnt++; | |
2688 | ||
2689 | /* Now, determine whetehr the list is completed for processing */ | |
2690 | irsp = &rspiocbp->iocb; | |
2691 | if (irsp->ulpLe) { | |
2692 | /* | |
2693 | * By default, the driver expects to free all resources | |
2694 | * associated with this iocb completion. | |
2695 | */ | |
2696 | free_saveq = 1; | |
2697 | saveq = list_get_first(&pring->iocb_continueq, | |
2698 | struct lpfc_iocbq, list); | |
2699 | irsp = &(saveq->iocb); | |
2700 | list_del_init(&pring->iocb_continueq); | |
2701 | pring->iocb_continueq_cnt = 0; | |
2702 | ||
2703 | pring->stats.iocb_rsp++; | |
2704 | ||
2705 | /* | |
2706 | * If resource errors reported from HBA, reduce | |
2707 | * queuedepths of the SCSI device. | |
2708 | */ | |
2709 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
2710 | (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { | |
2711 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2712 | phba->lpfc_rampdown_queue_depth(phba); | |
2713 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2714 | } | |
2715 | ||
2716 | if (irsp->ulpStatus) { | |
2717 | /* Rsp ring <ringno> error: IOCB */ | |
2718 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
2719 | "0328 Rsp Ring %d error: " | |
2720 | "IOCB Data: " | |
2721 | "x%x x%x x%x x%x " | |
2722 | "x%x x%x x%x x%x " | |
2723 | "x%x x%x x%x x%x " | |
2724 | "x%x x%x x%x x%x\n", | |
2725 | pring->ringno, | |
2726 | irsp->un.ulpWord[0], | |
2727 | irsp->un.ulpWord[1], | |
2728 | irsp->un.ulpWord[2], | |
2729 | irsp->un.ulpWord[3], | |
2730 | irsp->un.ulpWord[4], | |
2731 | irsp->un.ulpWord[5], | |
2732 | *(((uint32_t *) irsp) + 6), | |
2733 | *(((uint32_t *) irsp) + 7), | |
2734 | *(((uint32_t *) irsp) + 8), | |
2735 | *(((uint32_t *) irsp) + 9), | |
2736 | *(((uint32_t *) irsp) + 10), | |
2737 | *(((uint32_t *) irsp) + 11), | |
2738 | *(((uint32_t *) irsp) + 12), | |
2739 | *(((uint32_t *) irsp) + 13), | |
2740 | *(((uint32_t *) irsp) + 14), | |
2741 | *(((uint32_t *) irsp) + 15)); | |
2742 | } | |
2743 | ||
2744 | /* | |
2745 | * Fetch the IOCB command type and call the correct completion | |
2746 | * routine. Solicited and Unsolicited IOCBs on the ELS ring | |
2747 | * get freed back to the lpfc_iocb_list by the discovery | |
2748 | * kernel thread. | |
2749 | */ | |
2750 | iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK; | |
2751 | type = lpfc_sli_iocb_cmd_type(iocb_cmd_type); | |
2752 | switch (type) { | |
2753 | case LPFC_SOL_IOCB: | |
2754 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2755 | rc = lpfc_sli_process_sol_iocb(phba, pring, saveq); | |
2756 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2757 | break; | |
2758 | ||
2759 | case LPFC_UNSOL_IOCB: | |
2760 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2761 | rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq); | |
2762 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2763 | if (!rc) | |
2764 | free_saveq = 0; | |
2765 | break; | |
2766 | ||
2767 | case LPFC_ABORT_IOCB: | |
2768 | cmdiocbp = NULL; | |
2769 | if (irsp->ulpCommand != CMD_XRI_ABORTED_CX) | |
2770 | cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, | |
2771 | saveq); | |
2772 | if (cmdiocbp) { | |
2773 | /* Call the specified completion routine */ | |
2774 | if (cmdiocbp->iocb_cmpl) { | |
2775 | spin_unlock_irqrestore(&phba->hbalock, | |
2776 | iflag); | |
2777 | (cmdiocbp->iocb_cmpl)(phba, cmdiocbp, | |
2778 | saveq); | |
2779 | spin_lock_irqsave(&phba->hbalock, | |
2780 | iflag); | |
2781 | } else | |
2782 | __lpfc_sli_release_iocbq(phba, | |
2783 | cmdiocbp); | |
2784 | } | |
2785 | break; | |
2786 | ||
2787 | case LPFC_UNKNOWN_IOCB: | |
2788 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
2789 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
2790 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
2791 | memcpy(&adaptermsg[0], (uint8_t *)irsp, | |
2792 | MAX_MSG_DATA); | |
2793 | dev_warn(&((phba->pcidev)->dev), | |
2794 | "lpfc%d: %s\n", | |
2795 | phba->brd_no, adaptermsg); | |
2796 | } else { | |
2797 | /* Unknown IOCB command */ | |
2798 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2799 | "0335 Unknown IOCB " | |
2800 | "command Data: x%x " | |
2801 | "x%x x%x x%x\n", | |
2802 | irsp->ulpCommand, | |
2803 | irsp->ulpStatus, | |
2804 | irsp->ulpIoTag, | |
2805 | irsp->ulpContext); | |
2806 | } | |
2807 | break; | |
2808 | } | |
2809 | ||
2810 | if (free_saveq) { | |
2811 | list_for_each_entry_safe(rspiocbp, next_iocb, | |
2812 | &saveq->list, list) { | |
2813 | list_del(&rspiocbp->list); | |
2814 | __lpfc_sli_release_iocbq(phba, rspiocbp); | |
2815 | } | |
2816 | __lpfc_sli_release_iocbq(phba, saveq); | |
2817 | } | |
2818 | rspiocbp = NULL; | |
2819 | } | |
2820 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2821 | return rspiocbp; | |
2822 | } | |
2823 | ||
2824 | /** | |
2825 | * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs | |
e59058c4 JS |
2826 | * @phba: Pointer to HBA context object. |
2827 | * @pring: Pointer to driver SLI ring object. | |
2828 | * @mask: Host attention register mask for this ring. | |
2829 | * | |
3772a991 JS |
2830 | * This routine wraps the actual slow_ring event process routine from the |
2831 | * API jump table function pointer from the lpfc_hba struct. | |
e59058c4 | 2832 | **/ |
3772a991 | 2833 | void |
2e0fef85 JS |
2834 | lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba, |
2835 | struct lpfc_sli_ring *pring, uint32_t mask) | |
3772a991 JS |
2836 | { |
2837 | phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask); | |
2838 | } | |
2839 | ||
2840 | /** | |
2841 | * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings | |
2842 | * @phba: Pointer to HBA context object. | |
2843 | * @pring: Pointer to driver SLI ring object. | |
2844 | * @mask: Host attention register mask for this ring. | |
2845 | * | |
2846 | * This function is called from the worker thread when there is a ring event | |
2847 | * for non-fcp rings. The caller does not hold any lock. The function will | |
2848 | * remove each response iocb in the response ring and calls the handle | |
2849 | * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it. | |
2850 | **/ | |
2851 | static void | |
2852 | lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba, | |
2853 | struct lpfc_sli_ring *pring, uint32_t mask) | |
dea3101e | 2854 | { |
34b02dcd | 2855 | struct lpfc_pgp *pgp; |
dea3101e JB |
2856 | IOCB_t *entry; |
2857 | IOCB_t *irsp = NULL; | |
2858 | struct lpfc_iocbq *rspiocbp = NULL; | |
dea3101e | 2859 | uint32_t portRspPut, portRspMax; |
dea3101e | 2860 | unsigned long iflag; |
3772a991 | 2861 | uint32_t status; |
dea3101e | 2862 | |
34b02dcd | 2863 | pgp = &phba->port_gp[pring->ringno]; |
2e0fef85 | 2864 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e JB |
2865 | pring->stats.iocb_event++; |
2866 | ||
dea3101e JB |
2867 | /* |
2868 | * The next available response entry should never exceed the maximum | |
2869 | * entries. If it does, treat it as an adapter hardware error. | |
2870 | */ | |
2871 | portRspMax = pring->numRiocb; | |
2872 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2873 | if (portRspPut >= portRspMax) { | |
2874 | /* | |
025dfdaf | 2875 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger than |
dea3101e JB |
2876 | * rsp ring <portRspMax> |
2877 | */ | |
ed957684 | 2878 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 2879 | "0303 Ring %d handler: portRspPut %d " |
025dfdaf | 2880 | "is bigger than rsp ring %d\n", |
e8b62011 | 2881 | pring->ringno, portRspPut, portRspMax); |
dea3101e | 2882 | |
2e0fef85 JS |
2883 | phba->link_state = LPFC_HBA_ERROR; |
2884 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
dea3101e JB |
2885 | |
2886 | phba->work_hs = HS_FFER3; | |
2887 | lpfc_handle_eratt(phba); | |
2888 | ||
3772a991 | 2889 | return; |
dea3101e JB |
2890 | } |
2891 | ||
2892 | rmb(); | |
dea3101e JB |
2893 | while (pring->rspidx != portRspPut) { |
2894 | /* | |
2895 | * Build a completion list and call the appropriate handler. | |
2896 | * The process is to get the next available response iocb, get | |
2897 | * a free iocb from the list, copy the response data into the | |
2898 | * free iocb, insert to the continuation list, and update the | |
2899 | * next response index to slim. This process makes response | |
2900 | * iocb's in the ring available to DMA as fast as possible but | |
2901 | * pays a penalty for a copy operation. Since the iocb is | |
2902 | * only 32 bytes, this penalty is considered small relative to | |
2903 | * the PCI reads for register values and a slim write. When | |
2904 | * the ulpLe field is set, the entire Command has been | |
2905 | * received. | |
2906 | */ | |
ed957684 JS |
2907 | entry = lpfc_resp_iocb(phba, pring); |
2908 | ||
858c9f6c | 2909 | phba->last_completion_time = jiffies; |
2e0fef85 | 2910 | rspiocbp = __lpfc_sli_get_iocbq(phba); |
dea3101e JB |
2911 | if (rspiocbp == NULL) { |
2912 | printk(KERN_ERR "%s: out of buffers! Failing " | |
cadbd4a5 | 2913 | "completion.\n", __func__); |
dea3101e JB |
2914 | break; |
2915 | } | |
2916 | ||
ed957684 JS |
2917 | lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb, |
2918 | phba->iocb_rsp_size); | |
dea3101e JB |
2919 | irsp = &rspiocbp->iocb; |
2920 | ||
2921 | if (++pring->rspidx >= portRspMax) | |
2922 | pring->rspidx = 0; | |
2923 | ||
a58cbd52 JS |
2924 | if (pring->ringno == LPFC_ELS_RING) { |
2925 | lpfc_debugfs_slow_ring_trc(phba, | |
2926 | "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x", | |
2927 | *(((uint32_t *) irsp) + 4), | |
2928 | *(((uint32_t *) irsp) + 6), | |
2929 | *(((uint32_t *) irsp) + 7)); | |
2930 | } | |
2931 | ||
ed957684 | 2932 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
dea3101e | 2933 | |
3772a991 JS |
2934 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
2935 | /* Handle the response IOCB */ | |
2936 | rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp); | |
2937 | spin_lock_irqsave(&phba->hbalock, iflag); | |
dea3101e JB |
2938 | |
2939 | /* | |
2940 | * If the port response put pointer has not been updated, sync | |
2941 | * the pgp->rspPutInx in the MAILBOX_tand fetch the new port | |
2942 | * response put pointer. | |
2943 | */ | |
2944 | if (pring->rspidx == portRspPut) { | |
2945 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2946 | } | |
2947 | } /* while (pring->rspidx != portRspPut) */ | |
2948 | ||
92d7f7b0 | 2949 | if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) { |
dea3101e JB |
2950 | /* At least one response entry has been freed */ |
2951 | pring->stats.iocb_rsp_full++; | |
2952 | /* SET RxRE_RSP in Chip Att register */ | |
2953 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
2954 | writel(status, phba->CAregaddr); | |
2955 | readl(phba->CAregaddr); /* flush */ | |
2956 | } | |
2957 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2958 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2959 | pring->stats.iocb_cmd_empty++; | |
2960 | ||
2961 | /* Force update of the local copy of cmdGetInx */ | |
2962 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2963 | lpfc_sli_resume_iocb(phba, pring); | |
2964 | ||
2965 | if ((pring->lpfc_sli_cmd_available)) | |
2966 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2967 | ||
2968 | } | |
2969 | ||
2e0fef85 | 2970 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
3772a991 | 2971 | return; |
dea3101e JB |
2972 | } |
2973 | ||
4f774513 JS |
2974 | /** |
2975 | * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events | |
2976 | * @phba: Pointer to HBA context object. | |
2977 | * @pring: Pointer to driver SLI ring object. | |
2978 | * @mask: Host attention register mask for this ring. | |
2979 | * | |
2980 | * This function is called from the worker thread when there is a pending | |
2981 | * ELS response iocb on the driver internal slow-path response iocb worker | |
2982 | * queue. The caller does not hold any lock. The function will remove each | |
2983 | * response iocb from the response worker queue and calls the handle | |
2984 | * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it. | |
2985 | **/ | |
2986 | static void | |
2987 | lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba, | |
2988 | struct lpfc_sli_ring *pring, uint32_t mask) | |
2989 | { | |
2990 | struct lpfc_iocbq *irspiocbq; | |
4d9ab994 JS |
2991 | struct hbq_dmabuf *dmabuf; |
2992 | struct lpfc_cq_event *cq_event; | |
4f774513 JS |
2993 | unsigned long iflag; |
2994 | ||
45ed1190 JS |
2995 | spin_lock_irqsave(&phba->hbalock, iflag); |
2996 | phba->hba_flag &= ~HBA_SP_QUEUE_EVT; | |
2997 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2998 | while (!list_empty(&phba->sli4_hba.sp_queue_event)) { | |
4f774513 JS |
2999 | /* Get the response iocb from the head of work queue */ |
3000 | spin_lock_irqsave(&phba->hbalock, iflag); | |
45ed1190 | 3001 | list_remove_head(&phba->sli4_hba.sp_queue_event, |
4d9ab994 | 3002 | cq_event, struct lpfc_cq_event, list); |
4f774513 | 3003 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
4d9ab994 JS |
3004 | |
3005 | switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) { | |
3006 | case CQE_CODE_COMPL_WQE: | |
3007 | irspiocbq = container_of(cq_event, struct lpfc_iocbq, | |
3008 | cq_event); | |
45ed1190 JS |
3009 | /* Translate ELS WCQE to response IOCBQ */ |
3010 | irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba, | |
3011 | irspiocbq); | |
3012 | if (irspiocbq) | |
3013 | lpfc_sli_sp_handle_rspiocb(phba, pring, | |
3014 | irspiocbq); | |
4d9ab994 JS |
3015 | break; |
3016 | case CQE_CODE_RECEIVE: | |
3017 | dmabuf = container_of(cq_event, struct hbq_dmabuf, | |
3018 | cq_event); | |
3019 | lpfc_sli4_handle_received_buffer(phba, dmabuf); | |
3020 | break; | |
3021 | default: | |
3022 | break; | |
3023 | } | |
4f774513 JS |
3024 | } |
3025 | } | |
3026 | ||
e59058c4 | 3027 | /** |
3621a710 | 3028 | * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring |
e59058c4 JS |
3029 | * @phba: Pointer to HBA context object. |
3030 | * @pring: Pointer to driver SLI ring object. | |
3031 | * | |
3032 | * This function aborts all iocbs in the given ring and frees all the iocb | |
3033 | * objects in txq. This function issues an abort iocb for all the iocb commands | |
3034 | * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before | |
3035 | * the return of this function. The caller is not required to hold any locks. | |
3036 | **/ | |
2e0fef85 | 3037 | void |
dea3101e JB |
3038 | lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
3039 | { | |
2534ba75 | 3040 | LIST_HEAD(completions); |
dea3101e | 3041 | struct lpfc_iocbq *iocb, *next_iocb; |
dea3101e | 3042 | |
92d7f7b0 JS |
3043 | if (pring->ringno == LPFC_ELS_RING) { |
3044 | lpfc_fabric_abort_hba(phba); | |
3045 | } | |
3046 | ||
dea3101e JB |
3047 | /* Error everything on txq and txcmplq |
3048 | * First do the txq. | |
3049 | */ | |
2e0fef85 | 3050 | spin_lock_irq(&phba->hbalock); |
2534ba75 | 3051 | list_splice_init(&pring->txq, &completions); |
dea3101e | 3052 | pring->txq_cnt = 0; |
dea3101e JB |
3053 | |
3054 | /* Next issue ABTS for everything on the txcmplq */ | |
2534ba75 JS |
3055 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) |
3056 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
dea3101e | 3057 | |
2e0fef85 | 3058 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 3059 | |
a257bf90 JS |
3060 | /* Cancel all the IOCBs from the completions list */ |
3061 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
3062 | IOERR_SLI_ABORTED); | |
dea3101e JB |
3063 | } |
3064 | ||
a8e497d5 | 3065 | /** |
3621a710 | 3066 | * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring |
a8e497d5 JS |
3067 | * @phba: Pointer to HBA context object. |
3068 | * | |
3069 | * This function flushes all iocbs in the fcp ring and frees all the iocb | |
3070 | * objects in txq and txcmplq. This function will not issue abort iocbs | |
3071 | * for all the iocb commands in txcmplq, they will just be returned with | |
3072 | * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI | |
3073 | * slot has been permanently disabled. | |
3074 | **/ | |
3075 | void | |
3076 | lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba) | |
3077 | { | |
3078 | LIST_HEAD(txq); | |
3079 | LIST_HEAD(txcmplq); | |
a8e497d5 JS |
3080 | struct lpfc_sli *psli = &phba->sli; |
3081 | struct lpfc_sli_ring *pring; | |
3082 | ||
3083 | /* Currently, only one fcp ring */ | |
3084 | pring = &psli->ring[psli->fcp_ring]; | |
3085 | ||
3086 | spin_lock_irq(&phba->hbalock); | |
3087 | /* Retrieve everything on txq */ | |
3088 | list_splice_init(&pring->txq, &txq); | |
3089 | pring->txq_cnt = 0; | |
3090 | ||
3091 | /* Retrieve everything on the txcmplq */ | |
3092 | list_splice_init(&pring->txcmplq, &txcmplq); | |
3093 | pring->txcmplq_cnt = 0; | |
3094 | spin_unlock_irq(&phba->hbalock); | |
3095 | ||
3096 | /* Flush the txq */ | |
a257bf90 JS |
3097 | lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT, |
3098 | IOERR_SLI_DOWN); | |
a8e497d5 JS |
3099 | |
3100 | /* Flush the txcmpq */ | |
a257bf90 JS |
3101 | lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT, |
3102 | IOERR_SLI_DOWN); | |
a8e497d5 JS |
3103 | } |
3104 | ||
e59058c4 | 3105 | /** |
3772a991 | 3106 | * lpfc_sli_brdready_s3 - Check for sli3 host ready status |
e59058c4 JS |
3107 | * @phba: Pointer to HBA context object. |
3108 | * @mask: Bit mask to be checked. | |
3109 | * | |
3110 | * This function reads the host status register and compares | |
3111 | * with the provided bit mask to check if HBA completed | |
3112 | * the restart. This function will wait in a loop for the | |
3113 | * HBA to complete restart. If the HBA does not restart within | |
3114 | * 15 iterations, the function will reset the HBA again. The | |
3115 | * function returns 1 when HBA fail to restart otherwise returns | |
3116 | * zero. | |
3117 | **/ | |
3772a991 JS |
3118 | static int |
3119 | lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask) | |
dea3101e | 3120 | { |
41415862 JW |
3121 | uint32_t status; |
3122 | int i = 0; | |
3123 | int retval = 0; | |
dea3101e | 3124 | |
41415862 JW |
3125 | /* Read the HBA Host Status Register */ |
3126 | status = readl(phba->HSregaddr); | |
dea3101e | 3127 | |
41415862 JW |
3128 | /* |
3129 | * Check status register every 100ms for 5 retries, then every | |
3130 | * 500ms for 5, then every 2.5 sec for 5, then reset board and | |
3131 | * every 2.5 sec for 4. | |
3132 | * Break our of the loop if errors occurred during init. | |
3133 | */ | |
3134 | while (((status & mask) != mask) && | |
3135 | !(status & HS_FFERM) && | |
3136 | i++ < 20) { | |
dea3101e | 3137 | |
41415862 JW |
3138 | if (i <= 5) |
3139 | msleep(10); | |
3140 | else if (i <= 10) | |
3141 | msleep(500); | |
3142 | else | |
3143 | msleep(2500); | |
dea3101e | 3144 | |
41415862 | 3145 | if (i == 15) { |
2e0fef85 | 3146 | /* Do post */ |
92d7f7b0 | 3147 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 JW |
3148 | lpfc_sli_brdrestart(phba); |
3149 | } | |
3150 | /* Read the HBA Host Status Register */ | |
3151 | status = readl(phba->HSregaddr); | |
3152 | } | |
dea3101e | 3153 | |
41415862 JW |
3154 | /* Check to see if any errors occurred during init */ |
3155 | if ((status & HS_FFERM) || (i >= 20)) { | |
e40a02c1 JS |
3156 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
3157 | "2751 Adapter failed to restart, " | |
3158 | "status reg x%x, FW Data: A8 x%x AC x%x\n", | |
3159 | status, | |
3160 | readl(phba->MBslimaddr + 0xa8), | |
3161 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 3162 | phba->link_state = LPFC_HBA_ERROR; |
41415862 | 3163 | retval = 1; |
dea3101e | 3164 | } |
dea3101e | 3165 | |
41415862 JW |
3166 | return retval; |
3167 | } | |
dea3101e | 3168 | |
da0436e9 JS |
3169 | /** |
3170 | * lpfc_sli_brdready_s4 - Check for sli4 host ready status | |
3171 | * @phba: Pointer to HBA context object. | |
3172 | * @mask: Bit mask to be checked. | |
3173 | * | |
3174 | * This function checks the host status register to check if HBA is | |
3175 | * ready. This function will wait in a loop for the HBA to be ready | |
3176 | * If the HBA is not ready , the function will will reset the HBA PCI | |
3177 | * function again. The function returns 1 when HBA fail to be ready | |
3178 | * otherwise returns zero. | |
3179 | **/ | |
3180 | static int | |
3181 | lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask) | |
3182 | { | |
3183 | uint32_t status; | |
3184 | int retval = 0; | |
3185 | ||
3186 | /* Read the HBA Host Status Register */ | |
3187 | status = lpfc_sli4_post_status_check(phba); | |
3188 | ||
3189 | if (status) { | |
3190 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; | |
3191 | lpfc_sli_brdrestart(phba); | |
3192 | status = lpfc_sli4_post_status_check(phba); | |
3193 | } | |
3194 | ||
3195 | /* Check to see if any errors occurred during init */ | |
3196 | if (status) { | |
3197 | phba->link_state = LPFC_HBA_ERROR; | |
3198 | retval = 1; | |
3199 | } else | |
3200 | phba->sli4_hba.intr_enable = 0; | |
3201 | ||
3202 | return retval; | |
3203 | } | |
3204 | ||
3205 | /** | |
3206 | * lpfc_sli_brdready - Wrapper func for checking the hba readyness | |
3207 | * @phba: Pointer to HBA context object. | |
3208 | * @mask: Bit mask to be checked. | |
3209 | * | |
3210 | * This routine wraps the actual SLI3 or SLI4 hba readyness check routine | |
3211 | * from the API jump table function pointer from the lpfc_hba struct. | |
3212 | **/ | |
3213 | int | |
3214 | lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask) | |
3215 | { | |
3216 | return phba->lpfc_sli_brdready(phba, mask); | |
3217 | } | |
3218 | ||
9290831f JS |
3219 | #define BARRIER_TEST_PATTERN (0xdeadbeef) |
3220 | ||
e59058c4 | 3221 | /** |
3621a710 | 3222 | * lpfc_reset_barrier - Make HBA ready for HBA reset |
e59058c4 JS |
3223 | * @phba: Pointer to HBA context object. |
3224 | * | |
3225 | * This function is called before resetting an HBA. This | |
3226 | * function requests HBA to quiesce DMAs before a reset. | |
3227 | **/ | |
2e0fef85 | 3228 | void lpfc_reset_barrier(struct lpfc_hba *phba) |
9290831f | 3229 | { |
65a29c16 JS |
3230 | uint32_t __iomem *resp_buf; |
3231 | uint32_t __iomem *mbox_buf; | |
9290831f JS |
3232 | volatile uint32_t mbox; |
3233 | uint32_t hc_copy; | |
3234 | int i; | |
3235 | uint8_t hdrtype; | |
3236 | ||
3237 | pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype); | |
3238 | if (hdrtype != 0x80 || | |
3239 | (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID && | |
3240 | FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID)) | |
3241 | return; | |
3242 | ||
3243 | /* | |
3244 | * Tell the other part of the chip to suspend temporarily all | |
3245 | * its DMA activity. | |
3246 | */ | |
65a29c16 | 3247 | resp_buf = phba->MBslimaddr; |
9290831f JS |
3248 | |
3249 | /* Disable the error attention */ | |
3250 | hc_copy = readl(phba->HCregaddr); | |
3251 | writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr); | |
3252 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 | 3253 | phba->link_flag |= LS_IGNORE_ERATT; |
9290831f JS |
3254 | |
3255 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
3256 | /* Clear Chip error bit */ | |
3257 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 3258 | phba->pport->stopped = 1; |
9290831f JS |
3259 | } |
3260 | ||
3261 | mbox = 0; | |
3262 | ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD; | |
3263 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP; | |
3264 | ||
3265 | writel(BARRIER_TEST_PATTERN, (resp_buf + 1)); | |
65a29c16 | 3266 | mbox_buf = phba->MBslimaddr; |
9290831f JS |
3267 | writel(mbox, mbox_buf); |
3268 | ||
3269 | for (i = 0; | |
3270 | readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++) | |
3271 | mdelay(1); | |
3272 | ||
3273 | if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) { | |
f4b4c68f | 3274 | if (phba->sli.sli_flag & LPFC_SLI_ACTIVE || |
2e0fef85 | 3275 | phba->pport->stopped) |
9290831f JS |
3276 | goto restore_hc; |
3277 | else | |
3278 | goto clear_errat; | |
3279 | } | |
3280 | ||
3281 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST; | |
3282 | for (i = 0; readl(resp_buf) != mbox && i < 500; i++) | |
3283 | mdelay(1); | |
3284 | ||
3285 | clear_errat: | |
3286 | ||
3287 | while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500) | |
3288 | mdelay(1); | |
3289 | ||
3290 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
3291 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 3292 | phba->pport->stopped = 1; |
9290831f JS |
3293 | } |
3294 | ||
3295 | restore_hc: | |
2e0fef85 | 3296 | phba->link_flag &= ~LS_IGNORE_ERATT; |
9290831f JS |
3297 | writel(hc_copy, phba->HCregaddr); |
3298 | readl(phba->HCregaddr); /* flush */ | |
3299 | } | |
3300 | ||
e59058c4 | 3301 | /** |
3621a710 | 3302 | * lpfc_sli_brdkill - Issue a kill_board mailbox command |
e59058c4 JS |
3303 | * @phba: Pointer to HBA context object. |
3304 | * | |
3305 | * This function issues a kill_board mailbox command and waits for | |
3306 | * the error attention interrupt. This function is called for stopping | |
3307 | * the firmware processing. The caller is not required to hold any | |
3308 | * locks. This function calls lpfc_hba_down_post function to free | |
3309 | * any pending commands after the kill. The function will return 1 when it | |
3310 | * fails to kill the board else will return 0. | |
3311 | **/ | |
41415862 | 3312 | int |
2e0fef85 | 3313 | lpfc_sli_brdkill(struct lpfc_hba *phba) |
41415862 JW |
3314 | { |
3315 | struct lpfc_sli *psli; | |
3316 | LPFC_MBOXQ_t *pmb; | |
3317 | uint32_t status; | |
3318 | uint32_t ha_copy; | |
3319 | int retval; | |
3320 | int i = 0; | |
dea3101e | 3321 | |
41415862 | 3322 | psli = &phba->sli; |
dea3101e | 3323 | |
41415862 | 3324 | /* Kill HBA */ |
ed957684 | 3325 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 JS |
3326 | "0329 Kill HBA Data: x%x x%x\n", |
3327 | phba->pport->port_state, psli->sli_flag); | |
41415862 | 3328 | |
98c9ea5c JS |
3329 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
3330 | if (!pmb) | |
41415862 | 3331 | return 1; |
41415862 JW |
3332 | |
3333 | /* Disable the error attention */ | |
2e0fef85 | 3334 | spin_lock_irq(&phba->hbalock); |
41415862 JW |
3335 | status = readl(phba->HCregaddr); |
3336 | status &= ~HC_ERINT_ENA; | |
3337 | writel(status, phba->HCregaddr); | |
3338 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 JS |
3339 | phba->link_flag |= LS_IGNORE_ERATT; |
3340 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
3341 | |
3342 | lpfc_kill_board(phba, pmb); | |
3343 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
3344 | retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
3345 | ||
3346 | if (retval != MBX_SUCCESS) { | |
3347 | if (retval != MBX_BUSY) | |
3348 | mempool_free(pmb, phba->mbox_mem_pool); | |
e40a02c1 JS |
3349 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
3350 | "2752 KILL_BOARD command failed retval %d\n", | |
3351 | retval); | |
2e0fef85 JS |
3352 | spin_lock_irq(&phba->hbalock); |
3353 | phba->link_flag &= ~LS_IGNORE_ERATT; | |
3354 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
3355 | return 1; |
3356 | } | |
3357 | ||
f4b4c68f JS |
3358 | spin_lock_irq(&phba->hbalock); |
3359 | psli->sli_flag &= ~LPFC_SLI_ACTIVE; | |
3360 | spin_unlock_irq(&phba->hbalock); | |
9290831f | 3361 | |
41415862 JW |
3362 | mempool_free(pmb, phba->mbox_mem_pool); |
3363 | ||
3364 | /* There is no completion for a KILL_BOARD mbox cmd. Check for an error | |
3365 | * attention every 100ms for 3 seconds. If we don't get ERATT after | |
3366 | * 3 seconds we still set HBA_ERROR state because the status of the | |
3367 | * board is now undefined. | |
3368 | */ | |
3369 | ha_copy = readl(phba->HAregaddr); | |
3370 | ||
3371 | while ((i++ < 30) && !(ha_copy & HA_ERATT)) { | |
3372 | mdelay(100); | |
3373 | ha_copy = readl(phba->HAregaddr); | |
3374 | } | |
3375 | ||
3376 | del_timer_sync(&psli->mbox_tmo); | |
9290831f JS |
3377 | if (ha_copy & HA_ERATT) { |
3378 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 3379 | phba->pport->stopped = 1; |
9290831f | 3380 | } |
2e0fef85 | 3381 | spin_lock_irq(&phba->hbalock); |
41415862 | 3382 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
04c68496 | 3383 | psli->mbox_active = NULL; |
2e0fef85 JS |
3384 | phba->link_flag &= ~LS_IGNORE_ERATT; |
3385 | spin_unlock_irq(&phba->hbalock); | |
41415862 | 3386 | |
41415862 | 3387 | lpfc_hba_down_post(phba); |
2e0fef85 | 3388 | phba->link_state = LPFC_HBA_ERROR; |
41415862 | 3389 | |
2e0fef85 | 3390 | return ha_copy & HA_ERATT ? 0 : 1; |
dea3101e JB |
3391 | } |
3392 | ||
e59058c4 | 3393 | /** |
3772a991 | 3394 | * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA |
e59058c4 JS |
3395 | * @phba: Pointer to HBA context object. |
3396 | * | |
3397 | * This function resets the HBA by writing HC_INITFF to the control | |
3398 | * register. After the HBA resets, this function resets all the iocb ring | |
3399 | * indices. This function disables PCI layer parity checking during | |
3400 | * the reset. | |
3401 | * This function returns 0 always. | |
3402 | * The caller is not required to hold any locks. | |
3403 | **/ | |
41415862 | 3404 | int |
2e0fef85 | 3405 | lpfc_sli_brdreset(struct lpfc_hba *phba) |
dea3101e | 3406 | { |
41415862 | 3407 | struct lpfc_sli *psli; |
dea3101e | 3408 | struct lpfc_sli_ring *pring; |
41415862 | 3409 | uint16_t cfg_value; |
dea3101e | 3410 | int i; |
dea3101e | 3411 | |
41415862 | 3412 | psli = &phba->sli; |
dea3101e | 3413 | |
41415862 JW |
3414 | /* Reset HBA */ |
3415 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 3416 | "0325 Reset HBA Data: x%x x%x\n", |
2e0fef85 | 3417 | phba->pport->port_state, psli->sli_flag); |
dea3101e JB |
3418 | |
3419 | /* perform board reset */ | |
3420 | phba->fc_eventTag = 0; | |
4d9ab994 | 3421 | phba->link_events = 0; |
2e0fef85 JS |
3422 | phba->pport->fc_myDID = 0; |
3423 | phba->pport->fc_prevDID = 0; | |
dea3101e | 3424 | |
41415862 JW |
3425 | /* Turn off parity checking and serr during the physical reset */ |
3426 | pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); | |
3427 | pci_write_config_word(phba->pcidev, PCI_COMMAND, | |
3428 | (cfg_value & | |
3429 | ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); | |
3430 | ||
3772a991 JS |
3431 | psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA); |
3432 | ||
41415862 JW |
3433 | /* Now toggle INITFF bit in the Host Control Register */ |
3434 | writel(HC_INITFF, phba->HCregaddr); | |
3435 | mdelay(1); | |
3436 | readl(phba->HCregaddr); /* flush */ | |
3437 | writel(0, phba->HCregaddr); | |
3438 | readl(phba->HCregaddr); /* flush */ | |
3439 | ||
3440 | /* Restore PCI cmd register */ | |
3441 | pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value); | |
dea3101e JB |
3442 | |
3443 | /* Initialize relevant SLI info */ | |
41415862 JW |
3444 | for (i = 0; i < psli->num_rings; i++) { |
3445 | pring = &psli->ring[i]; | |
dea3101e JB |
3446 | pring->flag = 0; |
3447 | pring->rspidx = 0; | |
3448 | pring->next_cmdidx = 0; | |
3449 | pring->local_getidx = 0; | |
3450 | pring->cmdidx = 0; | |
3451 | pring->missbufcnt = 0; | |
3452 | } | |
dea3101e | 3453 | |
2e0fef85 | 3454 | phba->link_state = LPFC_WARM_START; |
41415862 JW |
3455 | return 0; |
3456 | } | |
3457 | ||
e59058c4 | 3458 | /** |
da0436e9 JS |
3459 | * lpfc_sli4_brdreset - Reset a sli-4 HBA |
3460 | * @phba: Pointer to HBA context object. | |
3461 | * | |
3462 | * This function resets a SLI4 HBA. This function disables PCI layer parity | |
3463 | * checking during resets the device. The caller is not required to hold | |
3464 | * any locks. | |
3465 | * | |
3466 | * This function returns 0 always. | |
3467 | **/ | |
3468 | int | |
3469 | lpfc_sli4_brdreset(struct lpfc_hba *phba) | |
3470 | { | |
3471 | struct lpfc_sli *psli = &phba->sli; | |
3472 | uint16_t cfg_value; | |
3473 | uint8_t qindx; | |
3474 | ||
3475 | /* Reset HBA */ | |
3476 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3477 | "0295 Reset HBA Data: x%x x%x\n", | |
3478 | phba->pport->port_state, psli->sli_flag); | |
3479 | ||
3480 | /* perform board reset */ | |
3481 | phba->fc_eventTag = 0; | |
4d9ab994 | 3482 | phba->link_events = 0; |
da0436e9 JS |
3483 | phba->pport->fc_myDID = 0; |
3484 | phba->pport->fc_prevDID = 0; | |
3485 | ||
3486 | /* Turn off parity checking and serr during the physical reset */ | |
3487 | pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); | |
3488 | pci_write_config_word(phba->pcidev, PCI_COMMAND, | |
3489 | (cfg_value & | |
3490 | ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); | |
3491 | ||
3492 | spin_lock_irq(&phba->hbalock); | |
3493 | psli->sli_flag &= ~(LPFC_PROCESS_LA); | |
3494 | phba->fcf.fcf_flag = 0; | |
3495 | /* Clean up the child queue list for the CQs */ | |
3496 | list_del_init(&phba->sli4_hba.mbx_wq->list); | |
3497 | list_del_init(&phba->sli4_hba.els_wq->list); | |
3498 | list_del_init(&phba->sli4_hba.hdr_rq->list); | |
3499 | list_del_init(&phba->sli4_hba.dat_rq->list); | |
3500 | list_del_init(&phba->sli4_hba.mbx_cq->list); | |
3501 | list_del_init(&phba->sli4_hba.els_cq->list); | |
da0436e9 JS |
3502 | for (qindx = 0; qindx < phba->cfg_fcp_wq_count; qindx++) |
3503 | list_del_init(&phba->sli4_hba.fcp_wq[qindx]->list); | |
3504 | for (qindx = 0; qindx < phba->cfg_fcp_eq_count; qindx++) | |
3505 | list_del_init(&phba->sli4_hba.fcp_cq[qindx]->list); | |
3506 | spin_unlock_irq(&phba->hbalock); | |
3507 | ||
3508 | /* Now physically reset the device */ | |
3509 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
3510 | "0389 Performing PCI function reset!\n"); | |
3511 | /* Perform FCoE PCI function reset */ | |
3512 | lpfc_pci_function_reset(phba); | |
3513 | ||
3514 | return 0; | |
3515 | } | |
3516 | ||
3517 | /** | |
3518 | * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba | |
e59058c4 JS |
3519 | * @phba: Pointer to HBA context object. |
3520 | * | |
3521 | * This function is called in the SLI initialization code path to | |
3522 | * restart the HBA. The caller is not required to hold any lock. | |
3523 | * This function writes MBX_RESTART mailbox command to the SLIM and | |
3524 | * resets the HBA. At the end of the function, it calls lpfc_hba_down_post | |
3525 | * function to free any pending commands. The function enables | |
3526 | * POST only during the first initialization. The function returns zero. | |
3527 | * The function does not guarantee completion of MBX_RESTART mailbox | |
3528 | * command before the return of this function. | |
3529 | **/ | |
da0436e9 JS |
3530 | static int |
3531 | lpfc_sli_brdrestart_s3(struct lpfc_hba *phba) | |
41415862 JW |
3532 | { |
3533 | MAILBOX_t *mb; | |
3534 | struct lpfc_sli *psli; | |
41415862 JW |
3535 | volatile uint32_t word0; |
3536 | void __iomem *to_slim; | |
0d878419 | 3537 | uint32_t hba_aer_enabled; |
41415862 | 3538 | |
2e0fef85 | 3539 | spin_lock_irq(&phba->hbalock); |
41415862 | 3540 | |
0d878419 JS |
3541 | /* Take PCIe device Advanced Error Reporting (AER) state */ |
3542 | hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED; | |
3543 | ||
41415862 JW |
3544 | psli = &phba->sli; |
3545 | ||
3546 | /* Restart HBA */ | |
3547 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 3548 | "0337 Restart HBA Data: x%x x%x\n", |
2e0fef85 | 3549 | phba->pport->port_state, psli->sli_flag); |
41415862 JW |
3550 | |
3551 | word0 = 0; | |
3552 | mb = (MAILBOX_t *) &word0; | |
3553 | mb->mbxCommand = MBX_RESTART; | |
3554 | mb->mbxHc = 1; | |
3555 | ||
9290831f JS |
3556 | lpfc_reset_barrier(phba); |
3557 | ||
41415862 JW |
3558 | to_slim = phba->MBslimaddr; |
3559 | writel(*(uint32_t *) mb, to_slim); | |
3560 | readl(to_slim); /* flush */ | |
3561 | ||
3562 | /* Only skip post after fc_ffinit is completed */ | |
eaf15d5b | 3563 | if (phba->pport->port_state) |
41415862 | 3564 | word0 = 1; /* This is really setting up word1 */ |
eaf15d5b | 3565 | else |
41415862 | 3566 | word0 = 0; /* This is really setting up word1 */ |
65a29c16 | 3567 | to_slim = phba->MBslimaddr + sizeof (uint32_t); |
41415862 JW |
3568 | writel(*(uint32_t *) mb, to_slim); |
3569 | readl(to_slim); /* flush */ | |
dea3101e | 3570 | |
41415862 | 3571 | lpfc_sli_brdreset(phba); |
2e0fef85 JS |
3572 | phba->pport->stopped = 0; |
3573 | phba->link_state = LPFC_INIT_START; | |
da0436e9 | 3574 | phba->hba_flag = 0; |
2e0fef85 | 3575 | spin_unlock_irq(&phba->hbalock); |
41415862 | 3576 | |
64ba8818 JS |
3577 | memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); |
3578 | psli->stats_start = get_seconds(); | |
3579 | ||
eaf15d5b JS |
3580 | /* Give the INITFF and Post time to settle. */ |
3581 | mdelay(100); | |
41415862 | 3582 | |
0d878419 JS |
3583 | /* Reset HBA AER if it was enabled, note hba_flag was reset above */ |
3584 | if (hba_aer_enabled) | |
3585 | pci_disable_pcie_error_reporting(phba->pcidev); | |
3586 | ||
41415862 | 3587 | lpfc_hba_down_post(phba); |
dea3101e JB |
3588 | |
3589 | return 0; | |
3590 | } | |
3591 | ||
da0436e9 JS |
3592 | /** |
3593 | * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba | |
3594 | * @phba: Pointer to HBA context object. | |
3595 | * | |
3596 | * This function is called in the SLI initialization code path to restart | |
3597 | * a SLI4 HBA. The caller is not required to hold any lock. | |
3598 | * At the end of the function, it calls lpfc_hba_down_post function to | |
3599 | * free any pending commands. | |
3600 | **/ | |
3601 | static int | |
3602 | lpfc_sli_brdrestart_s4(struct lpfc_hba *phba) | |
3603 | { | |
3604 | struct lpfc_sli *psli = &phba->sli; | |
75baf696 | 3605 | uint32_t hba_aer_enabled; |
da0436e9 JS |
3606 | |
3607 | /* Restart HBA */ | |
3608 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3609 | "0296 Restart HBA Data: x%x x%x\n", | |
3610 | phba->pport->port_state, psli->sli_flag); | |
3611 | ||
75baf696 JS |
3612 | /* Take PCIe device Advanced Error Reporting (AER) state */ |
3613 | hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED; | |
3614 | ||
da0436e9 JS |
3615 | lpfc_sli4_brdreset(phba); |
3616 | ||
3617 | spin_lock_irq(&phba->hbalock); | |
3618 | phba->pport->stopped = 0; | |
3619 | phba->link_state = LPFC_INIT_START; | |
3620 | phba->hba_flag = 0; | |
3621 | spin_unlock_irq(&phba->hbalock); | |
3622 | ||
3623 | memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); | |
3624 | psli->stats_start = get_seconds(); | |
3625 | ||
75baf696 JS |
3626 | /* Reset HBA AER if it was enabled, note hba_flag was reset above */ |
3627 | if (hba_aer_enabled) | |
3628 | pci_disable_pcie_error_reporting(phba->pcidev); | |
3629 | ||
da0436e9 JS |
3630 | lpfc_hba_down_post(phba); |
3631 | ||
3632 | return 0; | |
3633 | } | |
3634 | ||
3635 | /** | |
3636 | * lpfc_sli_brdrestart - Wrapper func for restarting hba | |
3637 | * @phba: Pointer to HBA context object. | |
3638 | * | |
3639 | * This routine wraps the actual SLI3 or SLI4 hba restart routine from the | |
3640 | * API jump table function pointer from the lpfc_hba struct. | |
3641 | **/ | |
3642 | int | |
3643 | lpfc_sli_brdrestart(struct lpfc_hba *phba) | |
3644 | { | |
3645 | return phba->lpfc_sli_brdrestart(phba); | |
3646 | } | |
3647 | ||
e59058c4 | 3648 | /** |
3621a710 | 3649 | * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart |
e59058c4 JS |
3650 | * @phba: Pointer to HBA context object. |
3651 | * | |
3652 | * This function is called after a HBA restart to wait for successful | |
3653 | * restart of the HBA. Successful restart of the HBA is indicated by | |
3654 | * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15 | |
3655 | * iteration, the function will restart the HBA again. The function returns | |
3656 | * zero if HBA successfully restarted else returns negative error code. | |
3657 | **/ | |
dea3101e JB |
3658 | static int |
3659 | lpfc_sli_chipset_init(struct lpfc_hba *phba) | |
3660 | { | |
3661 | uint32_t status, i = 0; | |
3662 | ||
3663 | /* Read the HBA Host Status Register */ | |
3664 | status = readl(phba->HSregaddr); | |
3665 | ||
3666 | /* Check status register to see what current state is */ | |
3667 | i = 0; | |
3668 | while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) { | |
3669 | ||
dcf2a4e0 JS |
3670 | /* Check every 10ms for 10 retries, then every 100ms for 90 |
3671 | * retries, then every 1 sec for 50 retires for a total of | |
3672 | * ~60 seconds before reset the board again and check every | |
3673 | * 1 sec for 50 retries. The up to 60 seconds before the | |
3674 | * board ready is required by the Falcon FIPS zeroization | |
3675 | * complete, and any reset the board in between shall cause | |
3676 | * restart of zeroization, further delay the board ready. | |
dea3101e | 3677 | */ |
dcf2a4e0 | 3678 | if (i++ >= 200) { |
dea3101e JB |
3679 | /* Adapter failed to init, timeout, status reg |
3680 | <status> */ | |
ed957684 | 3681 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 3682 | "0436 Adapter failed to init, " |
09372820 JS |
3683 | "timeout, status reg x%x, " |
3684 | "FW Data: A8 x%x AC x%x\n", status, | |
3685 | readl(phba->MBslimaddr + 0xa8), | |
3686 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 3687 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
3688 | return -ETIMEDOUT; |
3689 | } | |
3690 | ||
3691 | /* Check to see if any errors occurred during init */ | |
3692 | if (status & HS_FFERM) { | |
3693 | /* ERROR: During chipset initialization */ | |
3694 | /* Adapter failed to init, chipset, status reg | |
3695 | <status> */ | |
ed957684 | 3696 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 3697 | "0437 Adapter failed to init, " |
09372820 JS |
3698 | "chipset, status reg x%x, " |
3699 | "FW Data: A8 x%x AC x%x\n", status, | |
3700 | readl(phba->MBslimaddr + 0xa8), | |
3701 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 3702 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
3703 | return -EIO; |
3704 | } | |
3705 | ||
dcf2a4e0 | 3706 | if (i <= 10) |
dea3101e | 3707 | msleep(10); |
dcf2a4e0 JS |
3708 | else if (i <= 100) |
3709 | msleep(100); | |
3710 | else | |
3711 | msleep(1000); | |
dea3101e | 3712 | |
dcf2a4e0 JS |
3713 | if (i == 150) { |
3714 | /* Do post */ | |
92d7f7b0 | 3715 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 | 3716 | lpfc_sli_brdrestart(phba); |
dea3101e JB |
3717 | } |
3718 | /* Read the HBA Host Status Register */ | |
3719 | status = readl(phba->HSregaddr); | |
3720 | } | |
3721 | ||
3722 | /* Check to see if any errors occurred during init */ | |
3723 | if (status & HS_FFERM) { | |
3724 | /* ERROR: During chipset initialization */ | |
3725 | /* Adapter failed to init, chipset, status reg <status> */ | |
ed957684 | 3726 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 3727 | "0438 Adapter failed to init, chipset, " |
09372820 JS |
3728 | "status reg x%x, " |
3729 | "FW Data: A8 x%x AC x%x\n", status, | |
3730 | readl(phba->MBslimaddr + 0xa8), | |
3731 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 3732 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
3733 | return -EIO; |
3734 | } | |
3735 | ||
3736 | /* Clear all interrupt enable conditions */ | |
3737 | writel(0, phba->HCregaddr); | |
3738 | readl(phba->HCregaddr); /* flush */ | |
3739 | ||
3740 | /* setup host attn register */ | |
3741 | writel(0xffffffff, phba->HAregaddr); | |
3742 | readl(phba->HAregaddr); /* flush */ | |
3743 | return 0; | |
3744 | } | |
3745 | ||
e59058c4 | 3746 | /** |
3621a710 | 3747 | * lpfc_sli_hbq_count - Get the number of HBQs to be configured |
e59058c4 JS |
3748 | * |
3749 | * This function calculates and returns the number of HBQs required to be | |
3750 | * configured. | |
3751 | **/ | |
78b2d852 | 3752 | int |
ed957684 JS |
3753 | lpfc_sli_hbq_count(void) |
3754 | { | |
92d7f7b0 | 3755 | return ARRAY_SIZE(lpfc_hbq_defs); |
ed957684 JS |
3756 | } |
3757 | ||
e59058c4 | 3758 | /** |
3621a710 | 3759 | * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries |
e59058c4 JS |
3760 | * |
3761 | * This function adds the number of hbq entries in every HBQ to get | |
3762 | * the total number of hbq entries required for the HBA and returns | |
3763 | * the total count. | |
3764 | **/ | |
ed957684 JS |
3765 | static int |
3766 | lpfc_sli_hbq_entry_count(void) | |
3767 | { | |
3768 | int hbq_count = lpfc_sli_hbq_count(); | |
3769 | int count = 0; | |
3770 | int i; | |
3771 | ||
3772 | for (i = 0; i < hbq_count; ++i) | |
92d7f7b0 | 3773 | count += lpfc_hbq_defs[i]->entry_count; |
ed957684 JS |
3774 | return count; |
3775 | } | |
3776 | ||
e59058c4 | 3777 | /** |
3621a710 | 3778 | * lpfc_sli_hbq_size - Calculate memory required for all hbq entries |
e59058c4 JS |
3779 | * |
3780 | * This function calculates amount of memory required for all hbq entries | |
3781 | * to be configured and returns the total memory required. | |
3782 | **/ | |
dea3101e | 3783 | int |
ed957684 JS |
3784 | lpfc_sli_hbq_size(void) |
3785 | { | |
3786 | return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry); | |
3787 | } | |
3788 | ||
e59058c4 | 3789 | /** |
3621a710 | 3790 | * lpfc_sli_hbq_setup - configure and initialize HBQs |
e59058c4 JS |
3791 | * @phba: Pointer to HBA context object. |
3792 | * | |
3793 | * This function is called during the SLI initialization to configure | |
3794 | * all the HBQs and post buffers to the HBQ. The caller is not | |
3795 | * required to hold any locks. This function will return zero if successful | |
3796 | * else it will return negative error code. | |
3797 | **/ | |
ed957684 JS |
3798 | static int |
3799 | lpfc_sli_hbq_setup(struct lpfc_hba *phba) | |
3800 | { | |
3801 | int hbq_count = lpfc_sli_hbq_count(); | |
3802 | LPFC_MBOXQ_t *pmb; | |
3803 | MAILBOX_t *pmbox; | |
3804 | uint32_t hbqno; | |
3805 | uint32_t hbq_entry_index; | |
ed957684 | 3806 | |
92d7f7b0 JS |
3807 | /* Get a Mailbox buffer to setup mailbox |
3808 | * commands for HBA initialization | |
3809 | */ | |
ed957684 JS |
3810 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
3811 | ||
3812 | if (!pmb) | |
3813 | return -ENOMEM; | |
3814 | ||
04c68496 | 3815 | pmbox = &pmb->u.mb; |
ed957684 JS |
3816 | |
3817 | /* Initialize the struct lpfc_sli_hbq structure for each hbq */ | |
3818 | phba->link_state = LPFC_INIT_MBX_CMDS; | |
3163f725 | 3819 | phba->hbq_in_use = 1; |
ed957684 JS |
3820 | |
3821 | hbq_entry_index = 0; | |
3822 | for (hbqno = 0; hbqno < hbq_count; ++hbqno) { | |
3823 | phba->hbqs[hbqno].next_hbqPutIdx = 0; | |
3824 | phba->hbqs[hbqno].hbqPutIdx = 0; | |
3825 | phba->hbqs[hbqno].local_hbqGetIdx = 0; | |
3826 | phba->hbqs[hbqno].entry_count = | |
92d7f7b0 | 3827 | lpfc_hbq_defs[hbqno]->entry_count; |
51ef4c26 JS |
3828 | lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno], |
3829 | hbq_entry_index, pmb); | |
ed957684 JS |
3830 | hbq_entry_index += phba->hbqs[hbqno].entry_count; |
3831 | ||
3832 | if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { | |
3833 | /* Adapter failed to init, mbxCmd <cmd> CFG_RING, | |
3834 | mbxStatus <status>, ring <num> */ | |
3835 | ||
3836 | lpfc_printf_log(phba, KERN_ERR, | |
92d7f7b0 | 3837 | LOG_SLI | LOG_VPORT, |
e8b62011 | 3838 | "1805 Adapter failed to init. " |
ed957684 | 3839 | "Data: x%x x%x x%x\n", |
e8b62011 | 3840 | pmbox->mbxCommand, |
ed957684 JS |
3841 | pmbox->mbxStatus, hbqno); |
3842 | ||
3843 | phba->link_state = LPFC_HBA_ERROR; | |
3844 | mempool_free(pmb, phba->mbox_mem_pool); | |
6e7288d9 | 3845 | return -ENXIO; |
ed957684 JS |
3846 | } |
3847 | } | |
3848 | phba->hbq_count = hbq_count; | |
3849 | ||
ed957684 JS |
3850 | mempool_free(pmb, phba->mbox_mem_pool); |
3851 | ||
92d7f7b0 | 3852 | /* Initially populate or replenish the HBQs */ |
d7c255b2 JS |
3853 | for (hbqno = 0; hbqno < hbq_count; ++hbqno) |
3854 | lpfc_sli_hbqbuf_init_hbqs(phba, hbqno); | |
ed957684 JS |
3855 | return 0; |
3856 | } | |
3857 | ||
4f774513 JS |
3858 | /** |
3859 | * lpfc_sli4_rb_setup - Initialize and post RBs to HBA | |
3860 | * @phba: Pointer to HBA context object. | |
3861 | * | |
3862 | * This function is called during the SLI initialization to configure | |
3863 | * all the HBQs and post buffers to the HBQ. The caller is not | |
3864 | * required to hold any locks. This function will return zero if successful | |
3865 | * else it will return negative error code. | |
3866 | **/ | |
3867 | static int | |
3868 | lpfc_sli4_rb_setup(struct lpfc_hba *phba) | |
3869 | { | |
3870 | phba->hbq_in_use = 1; | |
3871 | phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count; | |
3872 | phba->hbq_count = 1; | |
3873 | /* Initially populate or replenish the HBQs */ | |
3874 | lpfc_sli_hbqbuf_init_hbqs(phba, 0); | |
3875 | return 0; | |
3876 | } | |
3877 | ||
e59058c4 | 3878 | /** |
3621a710 | 3879 | * lpfc_sli_config_port - Issue config port mailbox command |
e59058c4 JS |
3880 | * @phba: Pointer to HBA context object. |
3881 | * @sli_mode: sli mode - 2/3 | |
3882 | * | |
3883 | * This function is called by the sli intialization code path | |
3884 | * to issue config_port mailbox command. This function restarts the | |
3885 | * HBA firmware and issues a config_port mailbox command to configure | |
3886 | * the SLI interface in the sli mode specified by sli_mode | |
3887 | * variable. The caller is not required to hold any locks. | |
3888 | * The function returns 0 if successful, else returns negative error | |
3889 | * code. | |
3890 | **/ | |
9399627f JS |
3891 | int |
3892 | lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode) | |
dea3101e JB |
3893 | { |
3894 | LPFC_MBOXQ_t *pmb; | |
3895 | uint32_t resetcount = 0, rc = 0, done = 0; | |
3896 | ||
3897 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
3898 | if (!pmb) { | |
2e0fef85 | 3899 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e JB |
3900 | return -ENOMEM; |
3901 | } | |
3902 | ||
ed957684 | 3903 | phba->sli_rev = sli_mode; |
dea3101e | 3904 | while (resetcount < 2 && !done) { |
2e0fef85 | 3905 | spin_lock_irq(&phba->hbalock); |
1c067a42 | 3906 | phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3907 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 | 3908 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 | 3909 | lpfc_sli_brdrestart(phba); |
dea3101e JB |
3910 | rc = lpfc_sli_chipset_init(phba); |
3911 | if (rc) | |
3912 | break; | |
3913 | ||
2e0fef85 | 3914 | spin_lock_irq(&phba->hbalock); |
1c067a42 | 3915 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3916 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
3917 | resetcount++; |
3918 | ||
ed957684 JS |
3919 | /* Call pre CONFIG_PORT mailbox command initialization. A |
3920 | * value of 0 means the call was successful. Any other | |
3921 | * nonzero value is a failure, but if ERESTART is returned, | |
3922 | * the driver may reset the HBA and try again. | |
3923 | */ | |
dea3101e JB |
3924 | rc = lpfc_config_port_prep(phba); |
3925 | if (rc == -ERESTART) { | |
ed957684 | 3926 | phba->link_state = LPFC_LINK_UNKNOWN; |
dea3101e | 3927 | continue; |
34b02dcd | 3928 | } else if (rc) |
dea3101e | 3929 | break; |
2e0fef85 | 3930 | phba->link_state = LPFC_INIT_MBX_CMDS; |
dea3101e JB |
3931 | lpfc_config_port(phba, pmb); |
3932 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
34b02dcd JS |
3933 | phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED | |
3934 | LPFC_SLI3_HBQ_ENABLED | | |
3935 | LPFC_SLI3_CRP_ENABLED | | |
bc73905a JS |
3936 | LPFC_SLI3_BG_ENABLED | |
3937 | LPFC_SLI3_DSS_ENABLED); | |
ed957684 | 3938 | if (rc != MBX_SUCCESS) { |
dea3101e | 3939 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 3940 | "0442 Adapter failed to init, mbxCmd x%x " |
92d7f7b0 | 3941 | "CONFIG_PORT, mbxStatus x%x Data: x%x\n", |
04c68496 | 3942 | pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0); |
2e0fef85 | 3943 | spin_lock_irq(&phba->hbalock); |
04c68496 | 3944 | phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE; |
2e0fef85 JS |
3945 | spin_unlock_irq(&phba->hbalock); |
3946 | rc = -ENXIO; | |
04c68496 JS |
3947 | } else { |
3948 | /* Allow asynchronous mailbox command to go through */ | |
3949 | spin_lock_irq(&phba->hbalock); | |
3950 | phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK; | |
3951 | spin_unlock_irq(&phba->hbalock); | |
ed957684 | 3952 | done = 1; |
04c68496 | 3953 | } |
dea3101e | 3954 | } |
ed957684 JS |
3955 | if (!done) { |
3956 | rc = -EINVAL; | |
3957 | goto do_prep_failed; | |
3958 | } | |
04c68496 JS |
3959 | if (pmb->u.mb.un.varCfgPort.sli_mode == 3) { |
3960 | if (!pmb->u.mb.un.varCfgPort.cMA) { | |
34b02dcd JS |
3961 | rc = -ENXIO; |
3962 | goto do_prep_failed; | |
3963 | } | |
04c68496 | 3964 | if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) { |
34b02dcd | 3965 | phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; |
04c68496 JS |
3966 | phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi; |
3967 | phba->max_vports = (phba->max_vpi > phba->max_vports) ? | |
3968 | phba->max_vpi : phba->max_vports; | |
3969 | ||
34b02dcd JS |
3970 | } else |
3971 | phba->max_vpi = 0; | |
bc73905a JS |
3972 | phba->fips_level = 0; |
3973 | phba->fips_spec_rev = 0; | |
3974 | if (pmb->u.mb.un.varCfgPort.gdss) { | |
04c68496 | 3975 | phba->sli3_options |= LPFC_SLI3_DSS_ENABLED; |
bc73905a JS |
3976 | phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level; |
3977 | phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev; | |
3978 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
3979 | "2850 Security Crypto Active. FIPS x%d " | |
3980 | "(Spec Rev: x%d)", | |
3981 | phba->fips_level, phba->fips_spec_rev); | |
3982 | } | |
3983 | if (pmb->u.mb.un.varCfgPort.sec_err) { | |
3984 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
3985 | "2856 Config Port Security Crypto " | |
3986 | "Error: x%x ", | |
3987 | pmb->u.mb.un.varCfgPort.sec_err); | |
3988 | } | |
04c68496 | 3989 | if (pmb->u.mb.un.varCfgPort.gerbm) |
34b02dcd | 3990 | phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED; |
04c68496 | 3991 | if (pmb->u.mb.un.varCfgPort.gcrp) |
34b02dcd | 3992 | phba->sli3_options |= LPFC_SLI3_CRP_ENABLED; |
6e7288d9 JS |
3993 | |
3994 | phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get; | |
3995 | phba->port_gp = phba->mbox->us.s3_pgp.port; | |
e2a0a9d6 JS |
3996 | |
3997 | if (phba->cfg_enable_bg) { | |
04c68496 | 3998 | if (pmb->u.mb.un.varCfgPort.gbg) |
e2a0a9d6 JS |
3999 | phba->sli3_options |= LPFC_SLI3_BG_ENABLED; |
4000 | else | |
4001 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
4002 | "0443 Adapter did not grant " | |
4003 | "BlockGuard\n"); | |
4004 | } | |
34b02dcd | 4005 | } else { |
8f34f4ce | 4006 | phba->hbq_get = NULL; |
34b02dcd | 4007 | phba->port_gp = phba->mbox->us.s2.port; |
d7c255b2 | 4008 | phba->max_vpi = 0; |
ed957684 | 4009 | } |
92d7f7b0 | 4010 | do_prep_failed: |
ed957684 JS |
4011 | mempool_free(pmb, phba->mbox_mem_pool); |
4012 | return rc; | |
4013 | } | |
4014 | ||
e59058c4 JS |
4015 | |
4016 | /** | |
3621a710 | 4017 | * lpfc_sli_hba_setup - SLI intialization function |
e59058c4 JS |
4018 | * @phba: Pointer to HBA context object. |
4019 | * | |
4020 | * This function is the main SLI intialization function. This function | |
4021 | * is called by the HBA intialization code, HBA reset code and HBA | |
4022 | * error attention handler code. Caller is not required to hold any | |
4023 | * locks. This function issues config_port mailbox command to configure | |
4024 | * the SLI, setup iocb rings and HBQ rings. In the end the function | |
4025 | * calls the config_port_post function to issue init_link mailbox | |
4026 | * command and to start the discovery. The function will return zero | |
4027 | * if successful, else it will return negative error code. | |
4028 | **/ | |
ed957684 JS |
4029 | int |
4030 | lpfc_sli_hba_setup(struct lpfc_hba *phba) | |
4031 | { | |
4032 | uint32_t rc; | |
92d7f7b0 | 4033 | int mode = 3; |
ed957684 JS |
4034 | |
4035 | switch (lpfc_sli_mode) { | |
4036 | case 2: | |
78b2d852 | 4037 | if (phba->cfg_enable_npiv) { |
92d7f7b0 | 4038 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 | 4039 | "1824 NPIV enabled: Override lpfc_sli_mode " |
92d7f7b0 | 4040 | "parameter (%d) to auto (0).\n", |
e8b62011 | 4041 | lpfc_sli_mode); |
92d7f7b0 JS |
4042 | break; |
4043 | } | |
ed957684 JS |
4044 | mode = 2; |
4045 | break; | |
4046 | case 0: | |
4047 | case 3: | |
4048 | break; | |
4049 | default: | |
92d7f7b0 | 4050 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 JS |
4051 | "1819 Unrecognized lpfc_sli_mode " |
4052 | "parameter: %d.\n", lpfc_sli_mode); | |
ed957684 JS |
4053 | |
4054 | break; | |
4055 | } | |
4056 | ||
9399627f JS |
4057 | rc = lpfc_sli_config_port(phba, mode); |
4058 | ||
ed957684 | 4059 | if (rc && lpfc_sli_mode == 3) |
92d7f7b0 | 4060 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 JS |
4061 | "1820 Unable to select SLI-3. " |
4062 | "Not supported by adapter.\n"); | |
ed957684 | 4063 | if (rc && mode != 2) |
9399627f | 4064 | rc = lpfc_sli_config_port(phba, 2); |
ed957684 | 4065 | if (rc) |
dea3101e JB |
4066 | goto lpfc_sli_hba_setup_error; |
4067 | ||
0d878419 JS |
4068 | /* Enable PCIe device Advanced Error Reporting (AER) if configured */ |
4069 | if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) { | |
4070 | rc = pci_enable_pcie_error_reporting(phba->pcidev); | |
4071 | if (!rc) { | |
4072 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
4073 | "2709 This device supports " | |
4074 | "Advanced Error Reporting (AER)\n"); | |
4075 | spin_lock_irq(&phba->hbalock); | |
4076 | phba->hba_flag |= HBA_AER_ENABLED; | |
4077 | spin_unlock_irq(&phba->hbalock); | |
4078 | } else { | |
4079 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
4080 | "2708 This device does not support " | |
4081 | "Advanced Error Reporting (AER)\n"); | |
4082 | phba->cfg_aer_support = 0; | |
4083 | } | |
4084 | } | |
4085 | ||
ed957684 JS |
4086 | if (phba->sli_rev == 3) { |
4087 | phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE; | |
4088 | phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE; | |
ed957684 JS |
4089 | } else { |
4090 | phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE; | |
4091 | phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE; | |
92d7f7b0 | 4092 | phba->sli3_options = 0; |
ed957684 JS |
4093 | } |
4094 | ||
4095 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
e8b62011 JS |
4096 | "0444 Firmware in SLI %x mode. Max_vpi %d\n", |
4097 | phba->sli_rev, phba->max_vpi); | |
ed957684 | 4098 | rc = lpfc_sli_ring_map(phba); |
dea3101e JB |
4099 | |
4100 | if (rc) | |
4101 | goto lpfc_sli_hba_setup_error; | |
4102 | ||
9399627f | 4103 | /* Init HBQs */ |
ed957684 JS |
4104 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
4105 | rc = lpfc_sli_hbq_setup(phba); | |
4106 | if (rc) | |
4107 | goto lpfc_sli_hba_setup_error; | |
4108 | } | |
04c68496 | 4109 | spin_lock_irq(&phba->hbalock); |
dea3101e | 4110 | phba->sli.sli_flag |= LPFC_PROCESS_LA; |
04c68496 | 4111 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
4112 | |
4113 | rc = lpfc_config_port_post(phba); | |
4114 | if (rc) | |
4115 | goto lpfc_sli_hba_setup_error; | |
4116 | ||
ed957684 JS |
4117 | return rc; |
4118 | ||
92d7f7b0 | 4119 | lpfc_sli_hba_setup_error: |
2e0fef85 | 4120 | phba->link_state = LPFC_HBA_ERROR; |
e40a02c1 | 4121 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 4122 | "0445 Firmware initialization failed\n"); |
dea3101e JB |
4123 | return rc; |
4124 | } | |
4125 | ||
e59058c4 | 4126 | /** |
da0436e9 JS |
4127 | * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region |
4128 | * @phba: Pointer to HBA context object. | |
4129 | * @mboxq: mailbox pointer. | |
4130 | * This function issue a dump mailbox command to read config region | |
4131 | * 23 and parse the records in the region and populate driver | |
4132 | * data structure. | |
e59058c4 | 4133 | **/ |
da0436e9 JS |
4134 | static int |
4135 | lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba, | |
4136 | LPFC_MBOXQ_t *mboxq) | |
dea3101e | 4137 | { |
da0436e9 JS |
4138 | struct lpfc_dmabuf *mp; |
4139 | struct lpfc_mqe *mqe; | |
4140 | uint32_t data_length; | |
4141 | int rc; | |
dea3101e | 4142 | |
da0436e9 JS |
4143 | /* Program the default value of vlan_id and fc_map */ |
4144 | phba->valid_vlan = 0; | |
4145 | phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; | |
4146 | phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; | |
4147 | phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; | |
2e0fef85 | 4148 | |
da0436e9 JS |
4149 | mqe = &mboxq->u.mqe; |
4150 | if (lpfc_dump_fcoe_param(phba, mboxq)) | |
4151 | return -ENOMEM; | |
4152 | ||
4153 | mp = (struct lpfc_dmabuf *) mboxq->context1; | |
4154 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4155 | ||
4156 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
4157 | "(%d):2571 Mailbox cmd x%x Status x%x " | |
4158 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x " | |
4159 | "x%x x%x x%x x%x x%x x%x x%x x%x x%x " | |
4160 | "CQ: x%x x%x x%x x%x\n", | |
4161 | mboxq->vport ? mboxq->vport->vpi : 0, | |
4162 | bf_get(lpfc_mqe_command, mqe), | |
4163 | bf_get(lpfc_mqe_status, mqe), | |
4164 | mqe->un.mb_words[0], mqe->un.mb_words[1], | |
4165 | mqe->un.mb_words[2], mqe->un.mb_words[3], | |
4166 | mqe->un.mb_words[4], mqe->un.mb_words[5], | |
4167 | mqe->un.mb_words[6], mqe->un.mb_words[7], | |
4168 | mqe->un.mb_words[8], mqe->un.mb_words[9], | |
4169 | mqe->un.mb_words[10], mqe->un.mb_words[11], | |
4170 | mqe->un.mb_words[12], mqe->un.mb_words[13], | |
4171 | mqe->un.mb_words[14], mqe->un.mb_words[15], | |
4172 | mqe->un.mb_words[16], mqe->un.mb_words[50], | |
4173 | mboxq->mcqe.word0, | |
4174 | mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1, | |
4175 | mboxq->mcqe.trailer); | |
4176 | ||
4177 | if (rc) { | |
4178 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
4179 | kfree(mp); | |
4180 | return -EIO; | |
4181 | } | |
4182 | data_length = mqe->un.mb_words[5]; | |
a0c87cbd | 4183 | if (data_length > DMP_RGN23_SIZE) { |
d11e31dd JS |
4184 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
4185 | kfree(mp); | |
da0436e9 | 4186 | return -EIO; |
d11e31dd | 4187 | } |
dea3101e | 4188 | |
da0436e9 JS |
4189 | lpfc_parse_fcoe_conf(phba, mp->virt, data_length); |
4190 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
4191 | kfree(mp); | |
4192 | return 0; | |
4193 | } | |
e59058c4 JS |
4194 | |
4195 | /** | |
da0436e9 JS |
4196 | * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data |
4197 | * @phba: pointer to lpfc hba data structure. | |
4198 | * @mboxq: pointer to the LPFC_MBOXQ_t structure. | |
4199 | * @vpd: pointer to the memory to hold resulting port vpd data. | |
4200 | * @vpd_size: On input, the number of bytes allocated to @vpd. | |
4201 | * On output, the number of data bytes in @vpd. | |
e59058c4 | 4202 | * |
da0436e9 JS |
4203 | * This routine executes a READ_REV SLI4 mailbox command. In |
4204 | * addition, this routine gets the port vpd data. | |
4205 | * | |
4206 | * Return codes | |
af901ca1 | 4207 | * 0 - successful |
d439d286 | 4208 | * -ENOMEM - could not allocated memory. |
e59058c4 | 4209 | **/ |
da0436e9 JS |
4210 | static int |
4211 | lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, | |
4212 | uint8_t *vpd, uint32_t *vpd_size) | |
dea3101e | 4213 | { |
da0436e9 JS |
4214 | int rc = 0; |
4215 | uint32_t dma_size; | |
4216 | struct lpfc_dmabuf *dmabuf; | |
4217 | struct lpfc_mqe *mqe; | |
dea3101e | 4218 | |
da0436e9 JS |
4219 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
4220 | if (!dmabuf) | |
4221 | return -ENOMEM; | |
4222 | ||
4223 | /* | |
4224 | * Get a DMA buffer for the vpd data resulting from the READ_REV | |
4225 | * mailbox command. | |
a257bf90 | 4226 | */ |
da0436e9 JS |
4227 | dma_size = *vpd_size; |
4228 | dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, | |
4229 | dma_size, | |
4230 | &dmabuf->phys, | |
4231 | GFP_KERNEL); | |
4232 | if (!dmabuf->virt) { | |
4233 | kfree(dmabuf); | |
4234 | return -ENOMEM; | |
a257bf90 | 4235 | } |
da0436e9 | 4236 | memset(dmabuf->virt, 0, dma_size); |
a257bf90 | 4237 | |
da0436e9 JS |
4238 | /* |
4239 | * The SLI4 implementation of READ_REV conflicts at word1, | |
4240 | * bits 31:16 and SLI4 adds vpd functionality not present | |
4241 | * in SLI3. This code corrects the conflicts. | |
1dcb58e5 | 4242 | */ |
da0436e9 JS |
4243 | lpfc_read_rev(phba, mboxq); |
4244 | mqe = &mboxq->u.mqe; | |
4245 | mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys); | |
4246 | mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys); | |
4247 | mqe->un.read_rev.word1 &= 0x0000FFFF; | |
4248 | bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1); | |
4249 | bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size); | |
4250 | ||
4251 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4252 | if (rc) { | |
4253 | dma_free_coherent(&phba->pcidev->dev, dma_size, | |
4254 | dmabuf->virt, dmabuf->phys); | |
def9c7a9 | 4255 | kfree(dmabuf); |
da0436e9 JS |
4256 | return -EIO; |
4257 | } | |
1dcb58e5 | 4258 | |
da0436e9 JS |
4259 | /* |
4260 | * The available vpd length cannot be bigger than the | |
4261 | * DMA buffer passed to the port. Catch the less than | |
4262 | * case and update the caller's size. | |
4263 | */ | |
4264 | if (mqe->un.read_rev.avail_vpd_len < *vpd_size) | |
4265 | *vpd_size = mqe->un.read_rev.avail_vpd_len; | |
3772a991 | 4266 | |
d7c47992 JS |
4267 | memcpy(vpd, dmabuf->virt, *vpd_size); |
4268 | ||
da0436e9 JS |
4269 | dma_free_coherent(&phba->pcidev->dev, dma_size, |
4270 | dmabuf->virt, dmabuf->phys); | |
4271 | kfree(dmabuf); | |
4272 | return 0; | |
dea3101e JB |
4273 | } |
4274 | ||
e59058c4 | 4275 | /** |
da0436e9 JS |
4276 | * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues |
4277 | * @phba: pointer to lpfc hba data structure. | |
e59058c4 | 4278 | * |
da0436e9 JS |
4279 | * This routine is called to explicitly arm the SLI4 device's completion and |
4280 | * event queues | |
4281 | **/ | |
4282 | static void | |
4283 | lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba) | |
4284 | { | |
4285 | uint8_t fcp_eqidx; | |
4286 | ||
4287 | lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM); | |
4288 | lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM); | |
da0436e9 JS |
4289 | for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) |
4290 | lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx], | |
4291 | LPFC_QUEUE_REARM); | |
4292 | lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM); | |
4293 | for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) | |
4294 | lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx], | |
4295 | LPFC_QUEUE_REARM); | |
4296 | } | |
4297 | ||
4298 | /** | |
4299 | * lpfc_sli4_hba_setup - SLI4 device intialization PCI function | |
4300 | * @phba: Pointer to HBA context object. | |
4301 | * | |
4302 | * This function is the main SLI4 device intialization PCI function. This | |
4303 | * function is called by the HBA intialization code, HBA reset code and | |
4304 | * HBA error attention handler code. Caller is not required to hold any | |
4305 | * locks. | |
4306 | **/ | |
4307 | int | |
4308 | lpfc_sli4_hba_setup(struct lpfc_hba *phba) | |
4309 | { | |
4310 | int rc; | |
4311 | LPFC_MBOXQ_t *mboxq; | |
4312 | struct lpfc_mqe *mqe; | |
4313 | uint8_t *vpd; | |
4314 | uint32_t vpd_size; | |
4315 | uint32_t ftr_rsp = 0; | |
4316 | struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport); | |
4317 | struct lpfc_vport *vport = phba->pport; | |
4318 | struct lpfc_dmabuf *mp; | |
4319 | ||
4320 | /* Perform a PCI function reset to start from clean */ | |
4321 | rc = lpfc_pci_function_reset(phba); | |
4322 | if (unlikely(rc)) | |
4323 | return -ENODEV; | |
4324 | ||
4325 | /* Check the HBA Host Status Register for readyness */ | |
4326 | rc = lpfc_sli4_post_status_check(phba); | |
4327 | if (unlikely(rc)) | |
4328 | return -ENODEV; | |
4329 | else { | |
4330 | spin_lock_irq(&phba->hbalock); | |
4331 | phba->sli.sli_flag |= LPFC_SLI_ACTIVE; | |
4332 | spin_unlock_irq(&phba->hbalock); | |
4333 | } | |
4334 | ||
4335 | /* | |
4336 | * Allocate a single mailbox container for initializing the | |
4337 | * port. | |
4338 | */ | |
4339 | mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
4340 | if (!mboxq) | |
4341 | return -ENOMEM; | |
4342 | ||
4343 | /* | |
4344 | * Continue initialization with default values even if driver failed | |
4345 | * to read FCoE param config regions | |
4346 | */ | |
4347 | if (lpfc_sli4_read_fcoe_params(phba, mboxq)) | |
4348 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT, | |
e4e74273 | 4349 | "2570 Failed to read FCoE parameters\n"); |
da0436e9 JS |
4350 | |
4351 | /* Issue READ_REV to collect vpd and FW information. */ | |
49198b37 | 4352 | vpd_size = SLI4_PAGE_SIZE; |
da0436e9 JS |
4353 | vpd = kzalloc(vpd_size, GFP_KERNEL); |
4354 | if (!vpd) { | |
4355 | rc = -ENOMEM; | |
4356 | goto out_free_mbox; | |
4357 | } | |
4358 | ||
4359 | rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size); | |
4360 | if (unlikely(rc)) | |
4361 | goto out_free_vpd; | |
4362 | ||
4363 | mqe = &mboxq->u.mqe; | |
f1126688 JS |
4364 | phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev); |
4365 | if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) | |
4366 | phba->hba_flag |= HBA_FCOE_SUPPORT; | |
45ed1190 JS |
4367 | |
4368 | if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) == | |
4369 | LPFC_DCBX_CEE_MODE) | |
4370 | phba->hba_flag |= HBA_FIP_SUPPORT; | |
4371 | else | |
4372 | phba->hba_flag &= ~HBA_FIP_SUPPORT; | |
4373 | ||
f1126688 JS |
4374 | if (phba->sli_rev != LPFC_SLI_REV4 || |
4375 | !(phba->hba_flag & HBA_FCOE_SUPPORT)) { | |
da0436e9 JS |
4376 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4377 | "0376 READ_REV Error. SLI Level %d " | |
4378 | "FCoE enabled %d\n", | |
f1126688 | 4379 | phba->sli_rev, phba->hba_flag & HBA_FCOE_SUPPORT); |
da0436e9 JS |
4380 | rc = -EIO; |
4381 | goto out_free_vpd; | |
4382 | } | |
da0436e9 JS |
4383 | /* |
4384 | * Evaluate the read rev and vpd data. Populate the driver | |
4385 | * state with the results. If this routine fails, the failure | |
4386 | * is not fatal as the driver will use generic values. | |
4387 | */ | |
4388 | rc = lpfc_parse_vpd(phba, vpd, vpd_size); | |
4389 | if (unlikely(!rc)) { | |
4390 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4391 | "0377 Error %d parsing vpd. " | |
4392 | "Using defaults.\n", rc); | |
4393 | rc = 0; | |
4394 | } | |
4395 | ||
f1126688 JS |
4396 | /* Save information as VPD data */ |
4397 | phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev; | |
4398 | phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev; | |
4399 | phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev; | |
4400 | phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high, | |
4401 | &mqe->un.read_rev); | |
4402 | phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low, | |
4403 | &mqe->un.read_rev); | |
4404 | phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high, | |
4405 | &mqe->un.read_rev); | |
4406 | phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low, | |
4407 | &mqe->un.read_rev); | |
4408 | phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev; | |
4409 | memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16); | |
4410 | phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev; | |
4411 | memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16); | |
4412 | phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev; | |
4413 | memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16); | |
4414 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
4415 | "(%d):0380 READ_REV Status x%x " | |
4416 | "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n", | |
4417 | mboxq->vport ? mboxq->vport->vpi : 0, | |
4418 | bf_get(lpfc_mqe_status, mqe), | |
4419 | phba->vpd.rev.opFwName, | |
4420 | phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow, | |
4421 | phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow); | |
da0436e9 JS |
4422 | |
4423 | /* | |
4424 | * Discover the port's supported feature set and match it against the | |
4425 | * hosts requests. | |
4426 | */ | |
4427 | lpfc_request_features(phba, mboxq); | |
4428 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4429 | if (unlikely(rc)) { | |
4430 | rc = -EIO; | |
4431 | goto out_free_vpd; | |
4432 | } | |
4433 | ||
4434 | /* | |
4435 | * The port must support FCP initiator mode as this is the | |
4436 | * only mode running in the host. | |
4437 | */ | |
4438 | if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) { | |
4439 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, | |
4440 | "0378 No support for fcpi mode.\n"); | |
4441 | ftr_rsp++; | |
4442 | } | |
4443 | ||
4444 | /* | |
4445 | * If the port cannot support the host's requested features | |
4446 | * then turn off the global config parameters to disable the | |
4447 | * feature in the driver. This is not a fatal error. | |
4448 | */ | |
4449 | if ((phba->cfg_enable_bg) && | |
4450 | !(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))) | |
4451 | ftr_rsp++; | |
4452 | ||
4453 | if (phba->max_vpi && phba->cfg_enable_npiv && | |
4454 | !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs))) | |
4455 | ftr_rsp++; | |
4456 | ||
4457 | if (ftr_rsp) { | |
4458 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, | |
4459 | "0379 Feature Mismatch Data: x%08x %08x " | |
4460 | "x%x x%x x%x\n", mqe->un.req_ftrs.word2, | |
4461 | mqe->un.req_ftrs.word3, phba->cfg_enable_bg, | |
4462 | phba->cfg_enable_npiv, phba->max_vpi); | |
4463 | if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))) | |
4464 | phba->cfg_enable_bg = 0; | |
4465 | if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs))) | |
4466 | phba->cfg_enable_npiv = 0; | |
4467 | } | |
4468 | ||
4469 | /* These SLI3 features are assumed in SLI4 */ | |
4470 | spin_lock_irq(&phba->hbalock); | |
4471 | phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED); | |
4472 | spin_unlock_irq(&phba->hbalock); | |
4473 | ||
4474 | /* Read the port's service parameters. */ | |
9f1177a3 JS |
4475 | rc = lpfc_read_sparam(phba, mboxq, vport->vpi); |
4476 | if (rc) { | |
4477 | phba->link_state = LPFC_HBA_ERROR; | |
4478 | rc = -ENOMEM; | |
4479 | goto out_free_vpd; | |
4480 | } | |
4481 | ||
da0436e9 JS |
4482 | mboxq->vport = vport; |
4483 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4484 | mp = (struct lpfc_dmabuf *) mboxq->context1; | |
4485 | if (rc == MBX_SUCCESS) { | |
4486 | memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm)); | |
4487 | rc = 0; | |
4488 | } | |
4489 | ||
4490 | /* | |
4491 | * This memory was allocated by the lpfc_read_sparam routine. Release | |
4492 | * it to the mbuf pool. | |
4493 | */ | |
4494 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
4495 | kfree(mp); | |
4496 | mboxq->context1 = NULL; | |
4497 | if (unlikely(rc)) { | |
4498 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4499 | "0382 READ_SPARAM command failed " | |
4500 | "status %d, mbxStatus x%x\n", | |
4501 | rc, bf_get(lpfc_mqe_status, mqe)); | |
4502 | phba->link_state = LPFC_HBA_ERROR; | |
4503 | rc = -EIO; | |
4504 | goto out_free_vpd; | |
4505 | } | |
4506 | ||
4507 | if (phba->cfg_soft_wwnn) | |
4508 | u64_to_wwn(phba->cfg_soft_wwnn, | |
4509 | vport->fc_sparam.nodeName.u.wwn); | |
4510 | if (phba->cfg_soft_wwpn) | |
4511 | u64_to_wwn(phba->cfg_soft_wwpn, | |
4512 | vport->fc_sparam.portName.u.wwn); | |
4513 | memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, | |
4514 | sizeof(struct lpfc_name)); | |
4515 | memcpy(&vport->fc_portname, &vport->fc_sparam.portName, | |
4516 | sizeof(struct lpfc_name)); | |
4517 | ||
4518 | /* Update the fc_host data structures with new wwn. */ | |
4519 | fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); | |
4520 | fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); | |
4521 | ||
4522 | /* Register SGL pool to the device using non-embedded mailbox command */ | |
4523 | rc = lpfc_sli4_post_sgl_list(phba); | |
4524 | if (unlikely(rc)) { | |
4525 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
6a9c52cf JS |
4526 | "0582 Error %d during sgl post operation\n", |
4527 | rc); | |
da0436e9 JS |
4528 | rc = -ENODEV; |
4529 | goto out_free_vpd; | |
4530 | } | |
4531 | ||
4532 | /* Register SCSI SGL pool to the device */ | |
4533 | rc = lpfc_sli4_repost_scsi_sgl_list(phba); | |
4534 | if (unlikely(rc)) { | |
4535 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, | |
6a9c52cf JS |
4536 | "0383 Error %d during scsi sgl post " |
4537 | "operation\n", rc); | |
da0436e9 JS |
4538 | /* Some Scsi buffers were moved to the abort scsi list */ |
4539 | /* A pci function reset will repost them */ | |
4540 | rc = -ENODEV; | |
4541 | goto out_free_vpd; | |
4542 | } | |
4543 | ||
4544 | /* Post the rpi header region to the device. */ | |
4545 | rc = lpfc_sli4_post_all_rpi_hdrs(phba); | |
4546 | if (unlikely(rc)) { | |
4547 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4548 | "0393 Error %d during rpi post operation\n", | |
4549 | rc); | |
4550 | rc = -ENODEV; | |
4551 | goto out_free_vpd; | |
4552 | } | |
da0436e9 JS |
4553 | |
4554 | /* Set up all the queues to the device */ | |
4555 | rc = lpfc_sli4_queue_setup(phba); | |
4556 | if (unlikely(rc)) { | |
4557 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4558 | "0381 Error %d during queue setup.\n ", rc); | |
4559 | goto out_stop_timers; | |
4560 | } | |
4561 | ||
4562 | /* Arm the CQs and then EQs on device */ | |
4563 | lpfc_sli4_arm_cqeq_intr(phba); | |
4564 | ||
4565 | /* Indicate device interrupt mode */ | |
4566 | phba->sli4_hba.intr_enable = 1; | |
4567 | ||
4568 | /* Allow asynchronous mailbox command to go through */ | |
4569 | spin_lock_irq(&phba->hbalock); | |
4570 | phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK; | |
4571 | spin_unlock_irq(&phba->hbalock); | |
4572 | ||
4573 | /* Post receive buffers to the device */ | |
4574 | lpfc_sli4_rb_setup(phba); | |
4575 | ||
fc2b989b JS |
4576 | /* Reset HBA FCF states after HBA reset */ |
4577 | phba->fcf.fcf_flag = 0; | |
4578 | phba->fcf.current_rec.flag = 0; | |
4579 | ||
da0436e9 | 4580 | /* Start the ELS watchdog timer */ |
8fa38513 JS |
4581 | mod_timer(&vport->els_tmofunc, |
4582 | jiffies + HZ * (phba->fc_ratov * 2)); | |
da0436e9 JS |
4583 | |
4584 | /* Start heart beat timer */ | |
4585 | mod_timer(&phba->hb_tmofunc, | |
4586 | jiffies + HZ * LPFC_HB_MBOX_INTERVAL); | |
4587 | phba->hb_outstanding = 0; | |
4588 | phba->last_completion_time = jiffies; | |
4589 | ||
4590 | /* Start error attention (ERATT) polling timer */ | |
4591 | mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); | |
4592 | ||
75baf696 JS |
4593 | /* Enable PCIe device Advanced Error Reporting (AER) if configured */ |
4594 | if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) { | |
4595 | rc = pci_enable_pcie_error_reporting(phba->pcidev); | |
4596 | if (!rc) { | |
4597 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
4598 | "2829 This device supports " | |
4599 | "Advanced Error Reporting (AER)\n"); | |
4600 | spin_lock_irq(&phba->hbalock); | |
4601 | phba->hba_flag |= HBA_AER_ENABLED; | |
4602 | spin_unlock_irq(&phba->hbalock); | |
4603 | } else { | |
4604 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
4605 | "2830 This device does not support " | |
4606 | "Advanced Error Reporting (AER)\n"); | |
4607 | phba->cfg_aer_support = 0; | |
4608 | } | |
4609 | } | |
4610 | ||
da0436e9 JS |
4611 | /* |
4612 | * The port is ready, set the host's link state to LINK_DOWN | |
4613 | * in preparation for link interrupts. | |
4614 | */ | |
4615 | lpfc_init_link(phba, mboxq, phba->cfg_topology, phba->cfg_link_speed); | |
4616 | mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
4617 | lpfc_set_loopback_flag(phba); | |
4618 | /* Change driver state to LPFC_LINK_DOWN right before init link */ | |
4619 | spin_lock_irq(&phba->hbalock); | |
4620 | phba->link_state = LPFC_LINK_DOWN; | |
4621 | spin_unlock_irq(&phba->hbalock); | |
4622 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
4623 | if (unlikely(rc != MBX_NOT_FINISHED)) { | |
4624 | kfree(vpd); | |
4625 | return 0; | |
4626 | } else | |
4627 | rc = -EIO; | |
4628 | ||
4629 | /* Unset all the queues set up in this routine when error out */ | |
4630 | if (rc) | |
4631 | lpfc_sli4_queue_unset(phba); | |
4632 | ||
4633 | out_stop_timers: | |
4634 | if (rc) | |
4635 | lpfc_stop_hba_timers(phba); | |
4636 | out_free_vpd: | |
4637 | kfree(vpd); | |
4638 | out_free_mbox: | |
4639 | mempool_free(mboxq, phba->mbox_mem_pool); | |
4640 | return rc; | |
4641 | } | |
4642 | ||
4643 | /** | |
4644 | * lpfc_mbox_timeout - Timeout call back function for mbox timer | |
4645 | * @ptr: context object - pointer to hba structure. | |
4646 | * | |
4647 | * This is the callback function for mailbox timer. The mailbox | |
4648 | * timer is armed when a new mailbox command is issued and the timer | |
4649 | * is deleted when the mailbox complete. The function is called by | |
4650 | * the kernel timer code when a mailbox does not complete within | |
4651 | * expected time. This function wakes up the worker thread to | |
4652 | * process the mailbox timeout and returns. All the processing is | |
4653 | * done by the worker thread function lpfc_mbox_timeout_handler. | |
4654 | **/ | |
4655 | void | |
4656 | lpfc_mbox_timeout(unsigned long ptr) | |
4657 | { | |
4658 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; | |
4659 | unsigned long iflag; | |
4660 | uint32_t tmo_posted; | |
4661 | ||
4662 | spin_lock_irqsave(&phba->pport->work_port_lock, iflag); | |
4663 | tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO; | |
4664 | if (!tmo_posted) | |
4665 | phba->pport->work_port_events |= WORKER_MBOX_TMO; | |
4666 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); | |
4667 | ||
4668 | if (!tmo_posted) | |
4669 | lpfc_worker_wake_up(phba); | |
4670 | return; | |
4671 | } | |
4672 | ||
4673 | ||
4674 | /** | |
4675 | * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout | |
4676 | * @phba: Pointer to HBA context object. | |
4677 | * | |
4678 | * This function is called from worker thread when a mailbox command times out. | |
4679 | * The caller is not required to hold any locks. This function will reset the | |
4680 | * HBA and recover all the pending commands. | |
4681 | **/ | |
4682 | void | |
4683 | lpfc_mbox_timeout_handler(struct lpfc_hba *phba) | |
4684 | { | |
4685 | LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active; | |
04c68496 | 4686 | MAILBOX_t *mb = &pmbox->u.mb; |
da0436e9 JS |
4687 | struct lpfc_sli *psli = &phba->sli; |
4688 | struct lpfc_sli_ring *pring; | |
4689 | ||
4690 | /* Check the pmbox pointer first. There is a race condition | |
4691 | * between the mbox timeout handler getting executed in the | |
4692 | * worklist and the mailbox actually completing. When this | |
4693 | * race condition occurs, the mbox_active will be NULL. | |
4694 | */ | |
4695 | spin_lock_irq(&phba->hbalock); | |
4696 | if (pmbox == NULL) { | |
4697 | lpfc_printf_log(phba, KERN_WARNING, | |
4698 | LOG_MBOX | LOG_SLI, | |
4699 | "0353 Active Mailbox cleared - mailbox timeout " | |
4700 | "exiting\n"); | |
4701 | spin_unlock_irq(&phba->hbalock); | |
4702 | return; | |
4703 | } | |
4704 | ||
4705 | /* Mbox cmd <mbxCommand> timeout */ | |
4706 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4707 | "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n", | |
4708 | mb->mbxCommand, | |
4709 | phba->pport->port_state, | |
4710 | phba->sli.sli_flag, | |
4711 | phba->sli.mbox_active); | |
4712 | spin_unlock_irq(&phba->hbalock); | |
4713 | ||
4714 | /* Setting state unknown so lpfc_sli_abort_iocb_ring | |
4715 | * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing | |
4716 | * it to fail all oustanding SCSI IO. | |
4717 | */ | |
4718 | spin_lock_irq(&phba->pport->work_port_lock); | |
4719 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; | |
4720 | spin_unlock_irq(&phba->pport->work_port_lock); | |
4721 | spin_lock_irq(&phba->hbalock); | |
4722 | phba->link_state = LPFC_LINK_UNKNOWN; | |
f4b4c68f | 4723 | psli->sli_flag &= ~LPFC_SLI_ACTIVE; |
da0436e9 JS |
4724 | spin_unlock_irq(&phba->hbalock); |
4725 | ||
4726 | pring = &psli->ring[psli->fcp_ring]; | |
4727 | lpfc_sli_abort_iocb_ring(phba, pring); | |
4728 | ||
4729 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4730 | "0345 Resetting board due to mailbox timeout\n"); | |
4731 | ||
4732 | /* Reset the HBA device */ | |
4733 | lpfc_reset_hba(phba); | |
4734 | } | |
4735 | ||
4736 | /** | |
4737 | * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware | |
4738 | * @phba: Pointer to HBA context object. | |
4739 | * @pmbox: Pointer to mailbox object. | |
4740 | * @flag: Flag indicating how the mailbox need to be processed. | |
4741 | * | |
4742 | * This function is called by discovery code and HBA management code | |
4743 | * to submit a mailbox command to firmware with SLI-3 interface spec. This | |
4744 | * function gets the hbalock to protect the data structures. | |
4745 | * The mailbox command can be submitted in polling mode, in which case | |
4746 | * this function will wait in a polling loop for the completion of the | |
4747 | * mailbox. | |
4748 | * If the mailbox is submitted in no_wait mode (not polling) the | |
4749 | * function will submit the command and returns immediately without waiting | |
4750 | * for the mailbox completion. The no_wait is supported only when HBA | |
4751 | * is in SLI2/SLI3 mode - interrupts are enabled. | |
4752 | * The SLI interface allows only one mailbox pending at a time. If the | |
4753 | * mailbox is issued in polling mode and there is already a mailbox | |
4754 | * pending, then the function will return an error. If the mailbox is issued | |
4755 | * in NO_WAIT mode and there is a mailbox pending already, the function | |
4756 | * will return MBX_BUSY after queuing the mailbox into mailbox queue. | |
4757 | * The sli layer owns the mailbox object until the completion of mailbox | |
4758 | * command if this function return MBX_BUSY or MBX_SUCCESS. For all other | |
4759 | * return codes the caller owns the mailbox command after the return of | |
4760 | * the function. | |
e59058c4 | 4761 | **/ |
3772a991 JS |
4762 | static int |
4763 | lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, | |
4764 | uint32_t flag) | |
dea3101e | 4765 | { |
dea3101e | 4766 | MAILBOX_t *mb; |
2e0fef85 | 4767 | struct lpfc_sli *psli = &phba->sli; |
dea3101e JB |
4768 | uint32_t status, evtctr; |
4769 | uint32_t ha_copy; | |
4770 | int i; | |
09372820 | 4771 | unsigned long timeout; |
dea3101e | 4772 | unsigned long drvr_flag = 0; |
34b02dcd | 4773 | uint32_t word0, ldata; |
dea3101e | 4774 | void __iomem *to_slim; |
58da1ffb JS |
4775 | int processing_queue = 0; |
4776 | ||
4777 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
4778 | if (!pmbox) { | |
8568a4d2 | 4779 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
58da1ffb | 4780 | /* processing mbox queue from intr_handler */ |
3772a991 JS |
4781 | if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) { |
4782 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4783 | return MBX_SUCCESS; | |
4784 | } | |
58da1ffb | 4785 | processing_queue = 1; |
58da1ffb JS |
4786 | pmbox = lpfc_mbox_get(phba); |
4787 | if (!pmbox) { | |
4788 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4789 | return MBX_SUCCESS; | |
4790 | } | |
4791 | } | |
dea3101e | 4792 | |
ed957684 | 4793 | if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl && |
92d7f7b0 | 4794 | pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) { |
ed957684 | 4795 | if(!pmbox->vport) { |
58da1ffb | 4796 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
ed957684 | 4797 | lpfc_printf_log(phba, KERN_ERR, |
92d7f7b0 | 4798 | LOG_MBOX | LOG_VPORT, |
e8b62011 | 4799 | "1806 Mbox x%x failed. No vport\n", |
3772a991 | 4800 | pmbox->u.mb.mbxCommand); |
ed957684 | 4801 | dump_stack(); |
58da1ffb | 4802 | goto out_not_finished; |
ed957684 JS |
4803 | } |
4804 | } | |
4805 | ||
8d63f375 | 4806 | /* If the PCI channel is in offline state, do not post mbox. */ |
58da1ffb JS |
4807 | if (unlikely(pci_channel_offline(phba->pcidev))) { |
4808 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4809 | goto out_not_finished; | |
4810 | } | |
8d63f375 | 4811 | |
a257bf90 JS |
4812 | /* If HBA has a deferred error attention, fail the iocb. */ |
4813 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
4814 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4815 | goto out_not_finished; | |
4816 | } | |
4817 | ||
dea3101e | 4818 | psli = &phba->sli; |
92d7f7b0 | 4819 | |
3772a991 | 4820 | mb = &pmbox->u.mb; |
dea3101e JB |
4821 | status = MBX_SUCCESS; |
4822 | ||
2e0fef85 JS |
4823 | if (phba->link_state == LPFC_HBA_ERROR) { |
4824 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
41415862 JW |
4825 | |
4826 | /* Mbox command <mbxCommand> cannot issue */ | |
3772a991 JS |
4827 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4828 | "(%d):0311 Mailbox command x%x cannot " | |
4829 | "issue Data: x%x x%x\n", | |
4830 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4831 | pmbox->u.mb.mbxCommand, psli->sli_flag, flag); | |
58da1ffb | 4832 | goto out_not_finished; |
41415862 JW |
4833 | } |
4834 | ||
9290831f JS |
4835 | if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT && |
4836 | !(readl(phba->HCregaddr) & HC_MBINT_ENA)) { | |
2e0fef85 | 4837 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
3772a991 JS |
4838 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4839 | "(%d):2528 Mailbox command x%x cannot " | |
4840 | "issue Data: x%x x%x\n", | |
4841 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4842 | pmbox->u.mb.mbxCommand, psli->sli_flag, flag); | |
58da1ffb | 4843 | goto out_not_finished; |
9290831f JS |
4844 | } |
4845 | ||
dea3101e JB |
4846 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { |
4847 | /* Polling for a mbox command when another one is already active | |
4848 | * is not allowed in SLI. Also, the driver must have established | |
4849 | * SLI2 mode to queue and process multiple mbox commands. | |
4850 | */ | |
4851 | ||
4852 | if (flag & MBX_POLL) { | |
2e0fef85 | 4853 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e JB |
4854 | |
4855 | /* Mbox command <mbxCommand> cannot issue */ | |
3772a991 JS |
4856 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4857 | "(%d):2529 Mailbox command x%x " | |
4858 | "cannot issue Data: x%x x%x\n", | |
4859 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4860 | pmbox->u.mb.mbxCommand, | |
4861 | psli->sli_flag, flag); | |
58da1ffb | 4862 | goto out_not_finished; |
dea3101e JB |
4863 | } |
4864 | ||
3772a991 | 4865 | if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) { |
2e0fef85 | 4866 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 4867 | /* Mbox command <mbxCommand> cannot issue */ |
3772a991 JS |
4868 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4869 | "(%d):2530 Mailbox command x%x " | |
4870 | "cannot issue Data: x%x x%x\n", | |
4871 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4872 | pmbox->u.mb.mbxCommand, | |
4873 | psli->sli_flag, flag); | |
58da1ffb | 4874 | goto out_not_finished; |
dea3101e JB |
4875 | } |
4876 | ||
dea3101e JB |
4877 | /* Another mailbox command is still being processed, queue this |
4878 | * command to be processed later. | |
4879 | */ | |
4880 | lpfc_mbox_put(phba, pmbox); | |
4881 | ||
4882 | /* Mbox cmd issue - BUSY */ | |
ed957684 | 4883 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 4884 | "(%d):0308 Mbox cmd issue - BUSY Data: " |
92d7f7b0 | 4885 | "x%x x%x x%x x%x\n", |
92d7f7b0 JS |
4886 | pmbox->vport ? pmbox->vport->vpi : 0xffffff, |
4887 | mb->mbxCommand, phba->pport->port_state, | |
4888 | psli->sli_flag, flag); | |
dea3101e JB |
4889 | |
4890 | psli->slistat.mbox_busy++; | |
2e0fef85 | 4891 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 4892 | |
858c9f6c JS |
4893 | if (pmbox->vport) { |
4894 | lpfc_debugfs_disc_trc(pmbox->vport, | |
4895 | LPFC_DISC_TRC_MBOX_VPORT, | |
4896 | "MBOX Bsy vport: cmd:x%x mb:x%x x%x", | |
4897 | (uint32_t)mb->mbxCommand, | |
4898 | mb->un.varWords[0], mb->un.varWords[1]); | |
4899 | } | |
4900 | else { | |
4901 | lpfc_debugfs_disc_trc(phba->pport, | |
4902 | LPFC_DISC_TRC_MBOX, | |
4903 | "MBOX Bsy: cmd:x%x mb:x%x x%x", | |
4904 | (uint32_t)mb->mbxCommand, | |
4905 | mb->un.varWords[0], mb->un.varWords[1]); | |
4906 | } | |
4907 | ||
2e0fef85 | 4908 | return MBX_BUSY; |
dea3101e JB |
4909 | } |
4910 | ||
dea3101e JB |
4911 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
4912 | ||
4913 | /* If we are not polling, we MUST be in SLI2 mode */ | |
4914 | if (flag != MBX_POLL) { | |
3772a991 | 4915 | if (!(psli->sli_flag & LPFC_SLI_ACTIVE) && |
41415862 | 4916 | (mb->mbxCommand != MBX_KILL_BOARD)) { |
dea3101e | 4917 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 4918 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 4919 | /* Mbox command <mbxCommand> cannot issue */ |
3772a991 JS |
4920 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4921 | "(%d):2531 Mailbox command x%x " | |
4922 | "cannot issue Data: x%x x%x\n", | |
4923 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4924 | pmbox->u.mb.mbxCommand, | |
4925 | psli->sli_flag, flag); | |
58da1ffb | 4926 | goto out_not_finished; |
dea3101e JB |
4927 | } |
4928 | /* timeout active mbox command */ | |
a309a6b6 JS |
4929 | mod_timer(&psli->mbox_tmo, (jiffies + |
4930 | (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand)))); | |
dea3101e JB |
4931 | } |
4932 | ||
4933 | /* Mailbox cmd <cmd> issue */ | |
ed957684 | 4934 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 4935 | "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x " |
92d7f7b0 | 4936 | "x%x\n", |
e8b62011 | 4937 | pmbox->vport ? pmbox->vport->vpi : 0, |
92d7f7b0 JS |
4938 | mb->mbxCommand, phba->pport->port_state, |
4939 | psli->sli_flag, flag); | |
dea3101e | 4940 | |
858c9f6c JS |
4941 | if (mb->mbxCommand != MBX_HEARTBEAT) { |
4942 | if (pmbox->vport) { | |
4943 | lpfc_debugfs_disc_trc(pmbox->vport, | |
4944 | LPFC_DISC_TRC_MBOX_VPORT, | |
4945 | "MBOX Send vport: cmd:x%x mb:x%x x%x", | |
4946 | (uint32_t)mb->mbxCommand, | |
4947 | mb->un.varWords[0], mb->un.varWords[1]); | |
4948 | } | |
4949 | else { | |
4950 | lpfc_debugfs_disc_trc(phba->pport, | |
4951 | LPFC_DISC_TRC_MBOX, | |
4952 | "MBOX Send: cmd:x%x mb:x%x x%x", | |
4953 | (uint32_t)mb->mbxCommand, | |
4954 | mb->un.varWords[0], mb->un.varWords[1]); | |
4955 | } | |
4956 | } | |
4957 | ||
dea3101e JB |
4958 | psli->slistat.mbox_cmd++; |
4959 | evtctr = psli->slistat.mbox_event; | |
4960 | ||
4961 | /* next set own bit for the adapter and copy over command word */ | |
4962 | mb->mbxOwner = OWN_CHIP; | |
4963 | ||
3772a991 | 4964 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { |
7a470277 JS |
4965 | /* Populate mbox extension offset word. */ |
4966 | if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) { | |
4967 | *(((uint32_t *)mb) + pmbox->mbox_offset_word) | |
4968 | = (uint8_t *)phba->mbox_ext | |
4969 | - (uint8_t *)phba->mbox; | |
4970 | } | |
4971 | ||
4972 | /* Copy the mailbox extension data */ | |
4973 | if (pmbox->in_ext_byte_len && pmbox->context2) { | |
4974 | lpfc_sli_pcimem_bcopy(pmbox->context2, | |
4975 | (uint8_t *)phba->mbox_ext, | |
4976 | pmbox->in_ext_byte_len); | |
4977 | } | |
4978 | /* Copy command data to host SLIM area */ | |
34b02dcd | 4979 | lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE); |
dea3101e | 4980 | } else { |
7a470277 JS |
4981 | /* Populate mbox extension offset word. */ |
4982 | if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) | |
4983 | *(((uint32_t *)mb) + pmbox->mbox_offset_word) | |
4984 | = MAILBOX_HBA_EXT_OFFSET; | |
4985 | ||
4986 | /* Copy the mailbox extension data */ | |
4987 | if (pmbox->in_ext_byte_len && pmbox->context2) { | |
4988 | lpfc_memcpy_to_slim(phba->MBslimaddr + | |
4989 | MAILBOX_HBA_EXT_OFFSET, | |
4990 | pmbox->context2, pmbox->in_ext_byte_len); | |
4991 | ||
4992 | } | |
9290831f | 4993 | if (mb->mbxCommand == MBX_CONFIG_PORT) { |
dea3101e | 4994 | /* copy command data into host mbox for cmpl */ |
34b02dcd | 4995 | lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE); |
dea3101e JB |
4996 | } |
4997 | ||
4998 | /* First copy mbox command data to HBA SLIM, skip past first | |
4999 | word */ | |
5000 | to_slim = phba->MBslimaddr + sizeof (uint32_t); | |
5001 | lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0], | |
5002 | MAILBOX_CMD_SIZE - sizeof (uint32_t)); | |
5003 | ||
5004 | /* Next copy over first word, with mbxOwner set */ | |
34b02dcd | 5005 | ldata = *((uint32_t *)mb); |
dea3101e JB |
5006 | to_slim = phba->MBslimaddr; |
5007 | writel(ldata, to_slim); | |
5008 | readl(to_slim); /* flush */ | |
5009 | ||
5010 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
5011 | /* switch over to host mailbox */ | |
3772a991 | 5012 | psli->sli_flag |= LPFC_SLI_ACTIVE; |
dea3101e JB |
5013 | } |
5014 | } | |
5015 | ||
5016 | wmb(); | |
dea3101e JB |
5017 | |
5018 | switch (flag) { | |
5019 | case MBX_NOWAIT: | |
09372820 | 5020 | /* Set up reference to mailbox command */ |
dea3101e | 5021 | psli->mbox_active = pmbox; |
09372820 JS |
5022 | /* Interrupt board to do it */ |
5023 | writel(CA_MBATT, phba->CAregaddr); | |
5024 | readl(phba->CAregaddr); /* flush */ | |
5025 | /* Don't wait for it to finish, just return */ | |
dea3101e JB |
5026 | break; |
5027 | ||
5028 | case MBX_POLL: | |
09372820 | 5029 | /* Set up null reference to mailbox command */ |
dea3101e | 5030 | psli->mbox_active = NULL; |
09372820 JS |
5031 | /* Interrupt board to do it */ |
5032 | writel(CA_MBATT, phba->CAregaddr); | |
5033 | readl(phba->CAregaddr); /* flush */ | |
5034 | ||
3772a991 | 5035 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { |
dea3101e | 5036 | /* First read mbox status word */ |
34b02dcd | 5037 | word0 = *((uint32_t *)phba->mbox); |
dea3101e JB |
5038 | word0 = le32_to_cpu(word0); |
5039 | } else { | |
5040 | /* First read mbox status word */ | |
5041 | word0 = readl(phba->MBslimaddr); | |
5042 | } | |
5043 | ||
5044 | /* Read the HBA Host Attention Register */ | |
5045 | ha_copy = readl(phba->HAregaddr); | |
09372820 JS |
5046 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, |
5047 | mb->mbxCommand) * | |
5048 | 1000) + jiffies; | |
5049 | i = 0; | |
dea3101e | 5050 | /* Wait for command to complete */ |
41415862 JW |
5051 | while (((word0 & OWN_CHIP) == OWN_CHIP) || |
5052 | (!(ha_copy & HA_MBATT) && | |
2e0fef85 | 5053 | (phba->link_state > LPFC_WARM_START))) { |
09372820 | 5054 | if (time_after(jiffies, timeout)) { |
dea3101e | 5055 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 5056 | spin_unlock_irqrestore(&phba->hbalock, |
dea3101e | 5057 | drvr_flag); |
58da1ffb | 5058 | goto out_not_finished; |
dea3101e JB |
5059 | } |
5060 | ||
5061 | /* Check if we took a mbox interrupt while we were | |
5062 | polling */ | |
5063 | if (((word0 & OWN_CHIP) != OWN_CHIP) | |
5064 | && (evtctr != psli->slistat.mbox_event)) | |
5065 | break; | |
5066 | ||
09372820 JS |
5067 | if (i++ > 10) { |
5068 | spin_unlock_irqrestore(&phba->hbalock, | |
5069 | drvr_flag); | |
5070 | msleep(1); | |
5071 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
5072 | } | |
dea3101e | 5073 | |
3772a991 | 5074 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { |
dea3101e | 5075 | /* First copy command data */ |
34b02dcd | 5076 | word0 = *((uint32_t *)phba->mbox); |
dea3101e JB |
5077 | word0 = le32_to_cpu(word0); |
5078 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
5079 | MAILBOX_t *slimmb; | |
34b02dcd | 5080 | uint32_t slimword0; |
dea3101e JB |
5081 | /* Check real SLIM for any errors */ |
5082 | slimword0 = readl(phba->MBslimaddr); | |
5083 | slimmb = (MAILBOX_t *) & slimword0; | |
5084 | if (((slimword0 & OWN_CHIP) != OWN_CHIP) | |
5085 | && slimmb->mbxStatus) { | |
5086 | psli->sli_flag &= | |
3772a991 | 5087 | ~LPFC_SLI_ACTIVE; |
dea3101e JB |
5088 | word0 = slimword0; |
5089 | } | |
5090 | } | |
5091 | } else { | |
5092 | /* First copy command data */ | |
5093 | word0 = readl(phba->MBslimaddr); | |
5094 | } | |
5095 | /* Read the HBA Host Attention Register */ | |
5096 | ha_copy = readl(phba->HAregaddr); | |
5097 | } | |
5098 | ||
3772a991 | 5099 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { |
dea3101e | 5100 | /* copy results back to user */ |
34b02dcd | 5101 | lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE); |
7a470277 JS |
5102 | /* Copy the mailbox extension data */ |
5103 | if (pmbox->out_ext_byte_len && pmbox->context2) { | |
5104 | lpfc_sli_pcimem_bcopy(phba->mbox_ext, | |
5105 | pmbox->context2, | |
5106 | pmbox->out_ext_byte_len); | |
5107 | } | |
dea3101e JB |
5108 | } else { |
5109 | /* First copy command data */ | |
5110 | lpfc_memcpy_from_slim(mb, phba->MBslimaddr, | |
5111 | MAILBOX_CMD_SIZE); | |
7a470277 JS |
5112 | /* Copy the mailbox extension data */ |
5113 | if (pmbox->out_ext_byte_len && pmbox->context2) { | |
5114 | lpfc_memcpy_from_slim(pmbox->context2, | |
5115 | phba->MBslimaddr + | |
5116 | MAILBOX_HBA_EXT_OFFSET, | |
5117 | pmbox->out_ext_byte_len); | |
dea3101e JB |
5118 | } |
5119 | } | |
5120 | ||
5121 | writel(HA_MBATT, phba->HAregaddr); | |
5122 | readl(phba->HAregaddr); /* flush */ | |
5123 | ||
5124 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
5125 | status = mb->mbxStatus; | |
5126 | } | |
5127 | ||
2e0fef85 JS |
5128 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
5129 | return status; | |
58da1ffb JS |
5130 | |
5131 | out_not_finished: | |
5132 | if (processing_queue) { | |
da0436e9 | 5133 | pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED; |
58da1ffb JS |
5134 | lpfc_mbox_cmpl_put(phba, pmbox); |
5135 | } | |
5136 | return MBX_NOT_FINISHED; | |
dea3101e JB |
5137 | } |
5138 | ||
f1126688 JS |
5139 | /** |
5140 | * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command | |
5141 | * @phba: Pointer to HBA context object. | |
5142 | * | |
5143 | * The function blocks the posting of SLI4 asynchronous mailbox commands from | |
5144 | * the driver internal pending mailbox queue. It will then try to wait out the | |
5145 | * possible outstanding mailbox command before return. | |
5146 | * | |
5147 | * Returns: | |
5148 | * 0 - the outstanding mailbox command completed; otherwise, the wait for | |
5149 | * the outstanding mailbox command timed out. | |
5150 | **/ | |
5151 | static int | |
5152 | lpfc_sli4_async_mbox_block(struct lpfc_hba *phba) | |
5153 | { | |
5154 | struct lpfc_sli *psli = &phba->sli; | |
5155 | uint8_t actcmd = MBX_HEARTBEAT; | |
5156 | int rc = 0; | |
5157 | unsigned long timeout; | |
5158 | ||
5159 | /* Mark the asynchronous mailbox command posting as blocked */ | |
5160 | spin_lock_irq(&phba->hbalock); | |
5161 | psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; | |
5162 | if (phba->sli.mbox_active) | |
5163 | actcmd = phba->sli.mbox_active->u.mb.mbxCommand; | |
5164 | spin_unlock_irq(&phba->hbalock); | |
5165 | /* Determine how long we might wait for the active mailbox | |
5166 | * command to be gracefully completed by firmware. | |
5167 | */ | |
5168 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) + | |
5169 | jiffies; | |
5170 | /* Wait for the outstnading mailbox command to complete */ | |
5171 | while (phba->sli.mbox_active) { | |
5172 | /* Check active mailbox complete status every 2ms */ | |
5173 | msleep(2); | |
5174 | if (time_after(jiffies, timeout)) { | |
5175 | /* Timeout, marked the outstanding cmd not complete */ | |
5176 | rc = 1; | |
5177 | break; | |
5178 | } | |
5179 | } | |
5180 | ||
5181 | /* Can not cleanly block async mailbox command, fails it */ | |
5182 | if (rc) { | |
5183 | spin_lock_irq(&phba->hbalock); | |
5184 | psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK; | |
5185 | spin_unlock_irq(&phba->hbalock); | |
5186 | } | |
5187 | return rc; | |
5188 | } | |
5189 | ||
5190 | /** | |
5191 | * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command | |
5192 | * @phba: Pointer to HBA context object. | |
5193 | * | |
5194 | * The function unblocks and resume posting of SLI4 asynchronous mailbox | |
5195 | * commands from the driver internal pending mailbox queue. It makes sure | |
5196 | * that there is no outstanding mailbox command before resuming posting | |
5197 | * asynchronous mailbox commands. If, for any reason, there is outstanding | |
5198 | * mailbox command, it will try to wait it out before resuming asynchronous | |
5199 | * mailbox command posting. | |
5200 | **/ | |
5201 | static void | |
5202 | lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba) | |
5203 | { | |
5204 | struct lpfc_sli *psli = &phba->sli; | |
5205 | ||
5206 | spin_lock_irq(&phba->hbalock); | |
5207 | if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) { | |
5208 | /* Asynchronous mailbox posting is not blocked, do nothing */ | |
5209 | spin_unlock_irq(&phba->hbalock); | |
5210 | return; | |
5211 | } | |
5212 | ||
5213 | /* Outstanding synchronous mailbox command is guaranteed to be done, | |
5214 | * successful or timeout, after timing-out the outstanding mailbox | |
5215 | * command shall always be removed, so just unblock posting async | |
5216 | * mailbox command and resume | |
5217 | */ | |
5218 | psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK; | |
5219 | spin_unlock_irq(&phba->hbalock); | |
5220 | ||
5221 | /* wake up worker thread to post asynchronlous mailbox command */ | |
5222 | lpfc_worker_wake_up(phba); | |
5223 | } | |
5224 | ||
da0436e9 JS |
5225 | /** |
5226 | * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox | |
5227 | * @phba: Pointer to HBA context object. | |
5228 | * @mboxq: Pointer to mailbox object. | |
5229 | * | |
5230 | * The function posts a mailbox to the port. The mailbox is expected | |
5231 | * to be comletely filled in and ready for the port to operate on it. | |
5232 | * This routine executes a synchronous completion operation on the | |
5233 | * mailbox by polling for its completion. | |
5234 | * | |
5235 | * The caller must not be holding any locks when calling this routine. | |
5236 | * | |
5237 | * Returns: | |
5238 | * MBX_SUCCESS - mailbox posted successfully | |
5239 | * Any of the MBX error values. | |
5240 | **/ | |
5241 | static int | |
5242 | lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) | |
5243 | { | |
5244 | int rc = MBX_SUCCESS; | |
5245 | unsigned long iflag; | |
5246 | uint32_t db_ready; | |
5247 | uint32_t mcqe_status; | |
5248 | uint32_t mbx_cmnd; | |
5249 | unsigned long timeout; | |
5250 | struct lpfc_sli *psli = &phba->sli; | |
5251 | struct lpfc_mqe *mb = &mboxq->u.mqe; | |
5252 | struct lpfc_bmbx_create *mbox_rgn; | |
5253 | struct dma_address *dma_address; | |
5254 | struct lpfc_register bmbx_reg; | |
5255 | ||
5256 | /* | |
5257 | * Only one mailbox can be active to the bootstrap mailbox region | |
5258 | * at a time and there is no queueing provided. | |
5259 | */ | |
5260 | spin_lock_irqsave(&phba->hbalock, iflag); | |
5261 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { | |
5262 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
5263 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5264 | "(%d):2532 Mailbox command x%x (x%x) " | |
5265 | "cannot issue Data: x%x x%x\n", | |
5266 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5267 | mboxq->u.mb.mbxCommand, | |
5268 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5269 | psli->sli_flag, MBX_POLL); | |
5270 | return MBXERR_ERROR; | |
5271 | } | |
5272 | /* The server grabs the token and owns it until release */ | |
5273 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; | |
5274 | phba->sli.mbox_active = mboxq; | |
5275 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
5276 | ||
5277 | /* | |
5278 | * Initialize the bootstrap memory region to avoid stale data areas | |
5279 | * in the mailbox post. Then copy the caller's mailbox contents to | |
5280 | * the bmbx mailbox region. | |
5281 | */ | |
5282 | mbx_cmnd = bf_get(lpfc_mqe_command, mb); | |
5283 | memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create)); | |
5284 | lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt, | |
5285 | sizeof(struct lpfc_mqe)); | |
5286 | ||
5287 | /* Post the high mailbox dma address to the port and wait for ready. */ | |
5288 | dma_address = &phba->sli4_hba.bmbx.dma_address; | |
5289 | writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr); | |
5290 | ||
5291 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd) | |
5292 | * 1000) + jiffies; | |
5293 | do { | |
5294 | bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr); | |
5295 | db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg); | |
5296 | if (!db_ready) | |
5297 | msleep(2); | |
5298 | ||
5299 | if (time_after(jiffies, timeout)) { | |
5300 | rc = MBXERR_ERROR; | |
5301 | goto exit; | |
5302 | } | |
5303 | } while (!db_ready); | |
5304 | ||
5305 | /* Post the low mailbox dma address to the port. */ | |
5306 | writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr); | |
5307 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd) | |
5308 | * 1000) + jiffies; | |
5309 | do { | |
5310 | bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr); | |
5311 | db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg); | |
5312 | if (!db_ready) | |
5313 | msleep(2); | |
5314 | ||
5315 | if (time_after(jiffies, timeout)) { | |
5316 | rc = MBXERR_ERROR; | |
5317 | goto exit; | |
5318 | } | |
5319 | } while (!db_ready); | |
5320 | ||
5321 | /* | |
5322 | * Read the CQ to ensure the mailbox has completed. | |
5323 | * If so, update the mailbox status so that the upper layers | |
5324 | * can complete the request normally. | |
5325 | */ | |
5326 | lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb, | |
5327 | sizeof(struct lpfc_mqe)); | |
5328 | mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt; | |
5329 | lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe, | |
5330 | sizeof(struct lpfc_mcqe)); | |
5331 | mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe); | |
5332 | ||
5333 | /* Prefix the mailbox status with range x4000 to note SLI4 status. */ | |
5334 | if (mcqe_status != MB_CQE_STATUS_SUCCESS) { | |
5335 | bf_set(lpfc_mqe_status, mb, LPFC_MBX_ERROR_RANGE | mcqe_status); | |
5336 | rc = MBXERR_ERROR; | |
d7c47992 JS |
5337 | } else |
5338 | lpfc_sli4_swap_str(phba, mboxq); | |
da0436e9 JS |
5339 | |
5340 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
5341 | "(%d):0356 Mailbox cmd x%x (x%x) Status x%x " | |
5342 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x" | |
5343 | " x%x x%x CQ: x%x x%x x%x x%x\n", | |
5344 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5345 | mbx_cmnd, lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5346 | bf_get(lpfc_mqe_status, mb), | |
5347 | mb->un.mb_words[0], mb->un.mb_words[1], | |
5348 | mb->un.mb_words[2], mb->un.mb_words[3], | |
5349 | mb->un.mb_words[4], mb->un.mb_words[5], | |
5350 | mb->un.mb_words[6], mb->un.mb_words[7], | |
5351 | mb->un.mb_words[8], mb->un.mb_words[9], | |
5352 | mb->un.mb_words[10], mb->un.mb_words[11], | |
5353 | mb->un.mb_words[12], mboxq->mcqe.word0, | |
5354 | mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1, | |
5355 | mboxq->mcqe.trailer); | |
5356 | exit: | |
5357 | /* We are holding the token, no needed for lock when release */ | |
5358 | spin_lock_irqsave(&phba->hbalock, iflag); | |
5359 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
5360 | phba->sli.mbox_active = NULL; | |
5361 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
5362 | return rc; | |
5363 | } | |
5364 | ||
5365 | /** | |
5366 | * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware | |
5367 | * @phba: Pointer to HBA context object. | |
5368 | * @pmbox: Pointer to mailbox object. | |
5369 | * @flag: Flag indicating how the mailbox need to be processed. | |
5370 | * | |
5371 | * This function is called by discovery code and HBA management code to submit | |
5372 | * a mailbox command to firmware with SLI-4 interface spec. | |
5373 | * | |
5374 | * Return codes the caller owns the mailbox command after the return of the | |
5375 | * function. | |
5376 | **/ | |
5377 | static int | |
5378 | lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, | |
5379 | uint32_t flag) | |
5380 | { | |
5381 | struct lpfc_sli *psli = &phba->sli; | |
5382 | unsigned long iflags; | |
5383 | int rc; | |
5384 | ||
8fa38513 JS |
5385 | rc = lpfc_mbox_dev_check(phba); |
5386 | if (unlikely(rc)) { | |
5387 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5388 | "(%d):2544 Mailbox command x%x (x%x) " | |
5389 | "cannot issue Data: x%x x%x\n", | |
5390 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5391 | mboxq->u.mb.mbxCommand, | |
5392 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5393 | psli->sli_flag, flag); | |
5394 | goto out_not_finished; | |
5395 | } | |
5396 | ||
da0436e9 JS |
5397 | /* Detect polling mode and jump to a handler */ |
5398 | if (!phba->sli4_hba.intr_enable) { | |
5399 | if (flag == MBX_POLL) | |
5400 | rc = lpfc_sli4_post_sync_mbox(phba, mboxq); | |
5401 | else | |
5402 | rc = -EIO; | |
5403 | if (rc != MBX_SUCCESS) | |
5404 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5405 | "(%d):2541 Mailbox command x%x " | |
5406 | "(x%x) cannot issue Data: x%x x%x\n", | |
5407 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5408 | mboxq->u.mb.mbxCommand, | |
5409 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5410 | psli->sli_flag, flag); | |
5411 | return rc; | |
5412 | } else if (flag == MBX_POLL) { | |
f1126688 JS |
5413 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, |
5414 | "(%d):2542 Try to issue mailbox command " | |
5415 | "x%x (x%x) synchronously ahead of async" | |
5416 | "mailbox command queue: x%x x%x\n", | |
da0436e9 JS |
5417 | mboxq->vport ? mboxq->vport->vpi : 0, |
5418 | mboxq->u.mb.mbxCommand, | |
5419 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5420 | psli->sli_flag, flag); | |
f1126688 JS |
5421 | /* Try to block the asynchronous mailbox posting */ |
5422 | rc = lpfc_sli4_async_mbox_block(phba); | |
5423 | if (!rc) { | |
5424 | /* Successfully blocked, now issue sync mbox cmd */ | |
5425 | rc = lpfc_sli4_post_sync_mbox(phba, mboxq); | |
5426 | if (rc != MBX_SUCCESS) | |
5427 | lpfc_printf_log(phba, KERN_ERR, | |
5428 | LOG_MBOX | LOG_SLI, | |
5429 | "(%d):2597 Mailbox command " | |
5430 | "x%x (x%x) cannot issue " | |
5431 | "Data: x%x x%x\n", | |
5432 | mboxq->vport ? | |
5433 | mboxq->vport->vpi : 0, | |
5434 | mboxq->u.mb.mbxCommand, | |
5435 | lpfc_sli4_mbox_opcode_get(phba, | |
5436 | mboxq), | |
5437 | psli->sli_flag, flag); | |
5438 | /* Unblock the async mailbox posting afterward */ | |
5439 | lpfc_sli4_async_mbox_unblock(phba); | |
5440 | } | |
5441 | return rc; | |
da0436e9 JS |
5442 | } |
5443 | ||
5444 | /* Now, interrupt mode asynchrous mailbox command */ | |
5445 | rc = lpfc_mbox_cmd_check(phba, mboxq); | |
5446 | if (rc) { | |
5447 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5448 | "(%d):2543 Mailbox command x%x (x%x) " | |
5449 | "cannot issue Data: x%x x%x\n", | |
5450 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5451 | mboxq->u.mb.mbxCommand, | |
5452 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5453 | psli->sli_flag, flag); | |
5454 | goto out_not_finished; | |
5455 | } | |
da0436e9 JS |
5456 | |
5457 | /* Put the mailbox command to the driver internal FIFO */ | |
5458 | psli->slistat.mbox_busy++; | |
5459 | spin_lock_irqsave(&phba->hbalock, iflags); | |
5460 | lpfc_mbox_put(phba, mboxq); | |
5461 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5462 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
5463 | "(%d):0354 Mbox cmd issue - Enqueue Data: " | |
5464 | "x%x (x%x) x%x x%x x%x\n", | |
5465 | mboxq->vport ? mboxq->vport->vpi : 0xffffff, | |
5466 | bf_get(lpfc_mqe_command, &mboxq->u.mqe), | |
5467 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5468 | phba->pport->port_state, | |
5469 | psli->sli_flag, MBX_NOWAIT); | |
5470 | /* Wake up worker thread to transport mailbox command from head */ | |
5471 | lpfc_worker_wake_up(phba); | |
5472 | ||
5473 | return MBX_BUSY; | |
5474 | ||
5475 | out_not_finished: | |
5476 | return MBX_NOT_FINISHED; | |
5477 | } | |
5478 | ||
5479 | /** | |
5480 | * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device | |
5481 | * @phba: Pointer to HBA context object. | |
5482 | * | |
5483 | * This function is called by worker thread to send a mailbox command to | |
5484 | * SLI4 HBA firmware. | |
5485 | * | |
5486 | **/ | |
5487 | int | |
5488 | lpfc_sli4_post_async_mbox(struct lpfc_hba *phba) | |
5489 | { | |
5490 | struct lpfc_sli *psli = &phba->sli; | |
5491 | LPFC_MBOXQ_t *mboxq; | |
5492 | int rc = MBX_SUCCESS; | |
5493 | unsigned long iflags; | |
5494 | struct lpfc_mqe *mqe; | |
5495 | uint32_t mbx_cmnd; | |
5496 | ||
5497 | /* Check interrupt mode before post async mailbox command */ | |
5498 | if (unlikely(!phba->sli4_hba.intr_enable)) | |
5499 | return MBX_NOT_FINISHED; | |
5500 | ||
5501 | /* Check for mailbox command service token */ | |
5502 | spin_lock_irqsave(&phba->hbalock, iflags); | |
5503 | if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) { | |
5504 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5505 | return MBX_NOT_FINISHED; | |
5506 | } | |
5507 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { | |
5508 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5509 | return MBX_NOT_FINISHED; | |
5510 | } | |
5511 | if (unlikely(phba->sli.mbox_active)) { | |
5512 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5513 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5514 | "0384 There is pending active mailbox cmd\n"); | |
5515 | return MBX_NOT_FINISHED; | |
5516 | } | |
5517 | /* Take the mailbox command service token */ | |
5518 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; | |
5519 | ||
5520 | /* Get the next mailbox command from head of queue */ | |
5521 | mboxq = lpfc_mbox_get(phba); | |
5522 | ||
5523 | /* If no more mailbox command waiting for post, we're done */ | |
5524 | if (!mboxq) { | |
5525 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
5526 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5527 | return MBX_SUCCESS; | |
5528 | } | |
5529 | phba->sli.mbox_active = mboxq; | |
5530 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5531 | ||
5532 | /* Check device readiness for posting mailbox command */ | |
5533 | rc = lpfc_mbox_dev_check(phba); | |
5534 | if (unlikely(rc)) | |
5535 | /* Driver clean routine will clean up pending mailbox */ | |
5536 | goto out_not_finished; | |
5537 | ||
5538 | /* Prepare the mbox command to be posted */ | |
5539 | mqe = &mboxq->u.mqe; | |
5540 | mbx_cmnd = bf_get(lpfc_mqe_command, mqe); | |
5541 | ||
5542 | /* Start timer for the mbox_tmo and log some mailbox post messages */ | |
5543 | mod_timer(&psli->mbox_tmo, (jiffies + | |
5544 | (HZ * lpfc_mbox_tmo_val(phba, mbx_cmnd)))); | |
5545 | ||
5546 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
5547 | "(%d):0355 Mailbox cmd x%x (x%x) issue Data: " | |
5548 | "x%x x%x\n", | |
5549 | mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd, | |
5550 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5551 | phba->pport->port_state, psli->sli_flag); | |
5552 | ||
5553 | if (mbx_cmnd != MBX_HEARTBEAT) { | |
5554 | if (mboxq->vport) { | |
5555 | lpfc_debugfs_disc_trc(mboxq->vport, | |
5556 | LPFC_DISC_TRC_MBOX_VPORT, | |
5557 | "MBOX Send vport: cmd:x%x mb:x%x x%x", | |
5558 | mbx_cmnd, mqe->un.mb_words[0], | |
5559 | mqe->un.mb_words[1]); | |
5560 | } else { | |
5561 | lpfc_debugfs_disc_trc(phba->pport, | |
5562 | LPFC_DISC_TRC_MBOX, | |
5563 | "MBOX Send: cmd:x%x mb:x%x x%x", | |
5564 | mbx_cmnd, mqe->un.mb_words[0], | |
5565 | mqe->un.mb_words[1]); | |
5566 | } | |
5567 | } | |
5568 | psli->slistat.mbox_cmd++; | |
5569 | ||
5570 | /* Post the mailbox command to the port */ | |
5571 | rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe); | |
5572 | if (rc != MBX_SUCCESS) { | |
5573 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5574 | "(%d):2533 Mailbox command x%x (x%x) " | |
5575 | "cannot issue Data: x%x x%x\n", | |
5576 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5577 | mboxq->u.mb.mbxCommand, | |
5578 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5579 | psli->sli_flag, MBX_NOWAIT); | |
5580 | goto out_not_finished; | |
5581 | } | |
5582 | ||
5583 | return rc; | |
5584 | ||
5585 | out_not_finished: | |
5586 | spin_lock_irqsave(&phba->hbalock, iflags); | |
5587 | mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; | |
5588 | __lpfc_mbox_cmpl_put(phba, mboxq); | |
5589 | /* Release the token */ | |
5590 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
5591 | phba->sli.mbox_active = NULL; | |
5592 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5593 | ||
5594 | return MBX_NOT_FINISHED; | |
5595 | } | |
5596 | ||
5597 | /** | |
5598 | * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command | |
5599 | * @phba: Pointer to HBA context object. | |
5600 | * @pmbox: Pointer to mailbox object. | |
5601 | * @flag: Flag indicating how the mailbox need to be processed. | |
5602 | * | |
5603 | * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from | |
5604 | * the API jump table function pointer from the lpfc_hba struct. | |
5605 | * | |
5606 | * Return codes the caller owns the mailbox command after the return of the | |
5607 | * function. | |
5608 | **/ | |
5609 | int | |
5610 | lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag) | |
5611 | { | |
5612 | return phba->lpfc_sli_issue_mbox(phba, pmbox, flag); | |
5613 | } | |
5614 | ||
5615 | /** | |
5616 | * lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table | |
5617 | * @phba: The hba struct for which this call is being executed. | |
5618 | * @dev_grp: The HBA PCI-Device group number. | |
5619 | * | |
5620 | * This routine sets up the mbox interface API function jump table in @phba | |
5621 | * struct. | |
5622 | * Returns: 0 - success, -ENODEV - failure. | |
5623 | **/ | |
5624 | int | |
5625 | lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) | |
5626 | { | |
5627 | ||
5628 | switch (dev_grp) { | |
5629 | case LPFC_PCI_DEV_LP: | |
5630 | phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3; | |
5631 | phba->lpfc_sli_handle_slow_ring_event = | |
5632 | lpfc_sli_handle_slow_ring_event_s3; | |
5633 | phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3; | |
5634 | phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3; | |
5635 | phba->lpfc_sli_brdready = lpfc_sli_brdready_s3; | |
5636 | break; | |
5637 | case LPFC_PCI_DEV_OC: | |
5638 | phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4; | |
5639 | phba->lpfc_sli_handle_slow_ring_event = | |
5640 | lpfc_sli_handle_slow_ring_event_s4; | |
5641 | phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4; | |
5642 | phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4; | |
5643 | phba->lpfc_sli_brdready = lpfc_sli_brdready_s4; | |
5644 | break; | |
5645 | default: | |
5646 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5647 | "1420 Invalid HBA PCI-device group: 0x%x\n", | |
5648 | dev_grp); | |
5649 | return -ENODEV; | |
5650 | break; | |
5651 | } | |
5652 | return 0; | |
5653 | } | |
5654 | ||
e59058c4 | 5655 | /** |
3621a710 | 5656 | * __lpfc_sli_ringtx_put - Add an iocb to the txq |
e59058c4 JS |
5657 | * @phba: Pointer to HBA context object. |
5658 | * @pring: Pointer to driver SLI ring object. | |
5659 | * @piocb: Pointer to address of newly added command iocb. | |
5660 | * | |
5661 | * This function is called with hbalock held to add a command | |
5662 | * iocb to the txq when SLI layer cannot submit the command iocb | |
5663 | * to the ring. | |
5664 | **/ | |
2a9bf3d0 | 5665 | void |
92d7f7b0 | 5666 | __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
2e0fef85 | 5667 | struct lpfc_iocbq *piocb) |
dea3101e JB |
5668 | { |
5669 | /* Insert the caller's iocb in the txq tail for later processing. */ | |
5670 | list_add_tail(&piocb->list, &pring->txq); | |
5671 | pring->txq_cnt++; | |
dea3101e JB |
5672 | } |
5673 | ||
e59058c4 | 5674 | /** |
3621a710 | 5675 | * lpfc_sli_next_iocb - Get the next iocb in the txq |
e59058c4 JS |
5676 | * @phba: Pointer to HBA context object. |
5677 | * @pring: Pointer to driver SLI ring object. | |
5678 | * @piocb: Pointer to address of newly added command iocb. | |
5679 | * | |
5680 | * This function is called with hbalock held before a new | |
5681 | * iocb is submitted to the firmware. This function checks | |
5682 | * txq to flush the iocbs in txq to Firmware before | |
5683 | * submitting new iocbs to the Firmware. | |
5684 | * If there are iocbs in the txq which need to be submitted | |
5685 | * to firmware, lpfc_sli_next_iocb returns the first element | |
5686 | * of the txq after dequeuing it from txq. | |
5687 | * If there is no iocb in the txq then the function will return | |
5688 | * *piocb and *piocb is set to NULL. Caller needs to check | |
5689 | * *piocb to find if there are more commands in the txq. | |
5690 | **/ | |
dea3101e JB |
5691 | static struct lpfc_iocbq * |
5692 | lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2e0fef85 | 5693 | struct lpfc_iocbq **piocb) |
dea3101e JB |
5694 | { |
5695 | struct lpfc_iocbq * nextiocb; | |
5696 | ||
5697 | nextiocb = lpfc_sli_ringtx_get(phba, pring); | |
5698 | if (!nextiocb) { | |
5699 | nextiocb = *piocb; | |
5700 | *piocb = NULL; | |
5701 | } | |
5702 | ||
5703 | return nextiocb; | |
5704 | } | |
5705 | ||
e59058c4 | 5706 | /** |
3772a991 | 5707 | * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb |
e59058c4 | 5708 | * @phba: Pointer to HBA context object. |
3772a991 | 5709 | * @ring_number: SLI ring number to issue iocb on. |
e59058c4 JS |
5710 | * @piocb: Pointer to command iocb. |
5711 | * @flag: Flag indicating if this command can be put into txq. | |
5712 | * | |
3772a991 JS |
5713 | * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue |
5714 | * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is | |
5715 | * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT | |
5716 | * flag is turned on, the function returns IOCB_ERROR. When the link is down, | |
5717 | * this function allows only iocbs for posting buffers. This function finds | |
5718 | * next available slot in the command ring and posts the command to the | |
5719 | * available slot and writes the port attention register to request HBA start | |
5720 | * processing new iocb. If there is no slot available in the ring and | |
5721 | * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise | |
5722 | * the function returns IOCB_BUSY. | |
e59058c4 | 5723 | * |
3772a991 JS |
5724 | * This function is called with hbalock held. The function will return success |
5725 | * after it successfully submit the iocb to firmware or after adding to the | |
5726 | * txq. | |
e59058c4 | 5727 | **/ |
98c9ea5c | 5728 | static int |
3772a991 | 5729 | __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number, |
dea3101e JB |
5730 | struct lpfc_iocbq *piocb, uint32_t flag) |
5731 | { | |
5732 | struct lpfc_iocbq *nextiocb; | |
5733 | IOCB_t *iocb; | |
3772a991 | 5734 | struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number]; |
dea3101e | 5735 | |
92d7f7b0 JS |
5736 | if (piocb->iocb_cmpl && (!piocb->vport) && |
5737 | (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && | |
5738 | (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { | |
5739 | lpfc_printf_log(phba, KERN_ERR, | |
5740 | LOG_SLI | LOG_VPORT, | |
e8b62011 | 5741 | "1807 IOCB x%x failed. No vport\n", |
92d7f7b0 JS |
5742 | piocb->iocb.ulpCommand); |
5743 | dump_stack(); | |
5744 | return IOCB_ERROR; | |
5745 | } | |
5746 | ||
5747 | ||
8d63f375 LV |
5748 | /* If the PCI channel is in offline state, do not post iocbs. */ |
5749 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
5750 | return IOCB_ERROR; | |
5751 | ||
a257bf90 JS |
5752 | /* If HBA has a deferred error attention, fail the iocb. */ |
5753 | if (unlikely(phba->hba_flag & DEFER_ERATT)) | |
5754 | return IOCB_ERROR; | |
5755 | ||
dea3101e JB |
5756 | /* |
5757 | * We should never get an IOCB if we are in a < LINK_DOWN state | |
5758 | */ | |
2e0fef85 | 5759 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) |
dea3101e JB |
5760 | return IOCB_ERROR; |
5761 | ||
5762 | /* | |
5763 | * Check to see if we are blocking IOCB processing because of a | |
0b727fea | 5764 | * outstanding event. |
dea3101e | 5765 | */ |
0b727fea | 5766 | if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT)) |
dea3101e JB |
5767 | goto iocb_busy; |
5768 | ||
2e0fef85 | 5769 | if (unlikely(phba->link_state == LPFC_LINK_DOWN)) { |
dea3101e | 5770 | /* |
2680eeaa | 5771 | * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF |
dea3101e JB |
5772 | * can be issued if the link is not up. |
5773 | */ | |
5774 | switch (piocb->iocb.ulpCommand) { | |
84774a4d JS |
5775 | case CMD_GEN_REQUEST64_CR: |
5776 | case CMD_GEN_REQUEST64_CX: | |
5777 | if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) || | |
5778 | (piocb->iocb.un.genreq64.w5.hcsw.Rctl != | |
6a9c52cf | 5779 | FC_RCTL_DD_UNSOL_CMD) || |
84774a4d JS |
5780 | (piocb->iocb.un.genreq64.w5.hcsw.Type != |
5781 | MENLO_TRANSPORT_TYPE)) | |
5782 | ||
5783 | goto iocb_busy; | |
5784 | break; | |
dea3101e JB |
5785 | case CMD_QUE_RING_BUF_CN: |
5786 | case CMD_QUE_RING_BUF64_CN: | |
dea3101e JB |
5787 | /* |
5788 | * For IOCBs, like QUE_RING_BUF, that have no rsp ring | |
5789 | * completion, iocb_cmpl MUST be 0. | |
5790 | */ | |
5791 | if (piocb->iocb_cmpl) | |
5792 | piocb->iocb_cmpl = NULL; | |
5793 | /*FALLTHROUGH*/ | |
5794 | case CMD_CREATE_XRI_CR: | |
2680eeaa JS |
5795 | case CMD_CLOSE_XRI_CN: |
5796 | case CMD_CLOSE_XRI_CX: | |
dea3101e JB |
5797 | break; |
5798 | default: | |
5799 | goto iocb_busy; | |
5800 | } | |
5801 | ||
5802 | /* | |
5803 | * For FCP commands, we must be in a state where we can process link | |
5804 | * attention events. | |
5805 | */ | |
5806 | } else if (unlikely(pring->ringno == phba->sli.fcp_ring && | |
92d7f7b0 | 5807 | !(phba->sli.sli_flag & LPFC_PROCESS_LA))) { |
dea3101e | 5808 | goto iocb_busy; |
92d7f7b0 | 5809 | } |
dea3101e | 5810 | |
dea3101e JB |
5811 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && |
5812 | (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb))) | |
5813 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
5814 | ||
5815 | if (iocb) | |
5816 | lpfc_sli_update_ring(phba, pring); | |
5817 | else | |
5818 | lpfc_sli_update_full_ring(phba, pring); | |
5819 | ||
5820 | if (!piocb) | |
5821 | return IOCB_SUCCESS; | |
5822 | ||
5823 | goto out_busy; | |
5824 | ||
5825 | iocb_busy: | |
5826 | pring->stats.iocb_cmd_delay++; | |
5827 | ||
5828 | out_busy: | |
5829 | ||
5830 | if (!(flag & SLI_IOCB_RET_IOCB)) { | |
92d7f7b0 | 5831 | __lpfc_sli_ringtx_put(phba, pring, piocb); |
dea3101e JB |
5832 | return IOCB_SUCCESS; |
5833 | } | |
5834 | ||
5835 | return IOCB_BUSY; | |
5836 | } | |
5837 | ||
3772a991 | 5838 | /** |
4f774513 JS |
5839 | * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl. |
5840 | * @phba: Pointer to HBA context object. | |
5841 | * @piocb: Pointer to command iocb. | |
5842 | * @sglq: Pointer to the scatter gather queue object. | |
5843 | * | |
5844 | * This routine converts the bpl or bde that is in the IOCB | |
5845 | * to a sgl list for the sli4 hardware. The physical address | |
5846 | * of the bpl/bde is converted back to a virtual address. | |
5847 | * If the IOCB contains a BPL then the list of BDE's is | |
5848 | * converted to sli4_sge's. If the IOCB contains a single | |
5849 | * BDE then it is converted to a single sli_sge. | |
5850 | * The IOCB is still in cpu endianess so the contents of | |
5851 | * the bpl can be used without byte swapping. | |
5852 | * | |
5853 | * Returns valid XRI = Success, NO_XRI = Failure. | |
5854 | **/ | |
5855 | static uint16_t | |
5856 | lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq, | |
5857 | struct lpfc_sglq *sglq) | |
3772a991 | 5858 | { |
4f774513 JS |
5859 | uint16_t xritag = NO_XRI; |
5860 | struct ulp_bde64 *bpl = NULL; | |
5861 | struct ulp_bde64 bde; | |
5862 | struct sli4_sge *sgl = NULL; | |
5863 | IOCB_t *icmd; | |
5864 | int numBdes = 0; | |
5865 | int i = 0; | |
3772a991 | 5866 | |
4f774513 JS |
5867 | if (!piocbq || !sglq) |
5868 | return xritag; | |
5869 | ||
5870 | sgl = (struct sli4_sge *)sglq->sgl; | |
5871 | icmd = &piocbq->iocb; | |
5872 | if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) { | |
5873 | numBdes = icmd->un.genreq64.bdl.bdeSize / | |
5874 | sizeof(struct ulp_bde64); | |
5875 | /* The addrHigh and addrLow fields within the IOCB | |
5876 | * have not been byteswapped yet so there is no | |
5877 | * need to swap them back. | |
5878 | */ | |
5879 | bpl = (struct ulp_bde64 *) | |
5880 | ((struct lpfc_dmabuf *)piocbq->context3)->virt; | |
5881 | ||
5882 | if (!bpl) | |
5883 | return xritag; | |
5884 | ||
5885 | for (i = 0; i < numBdes; i++) { | |
5886 | /* Should already be byte swapped. */ | |
28baac74 JS |
5887 | sgl->addr_hi = bpl->addrHigh; |
5888 | sgl->addr_lo = bpl->addrLow; | |
5889 | ||
4f774513 JS |
5890 | if ((i+1) == numBdes) |
5891 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
5892 | else | |
5893 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
5894 | sgl->word2 = cpu_to_le32(sgl->word2); | |
28baac74 JS |
5895 | /* swap the size field back to the cpu so we |
5896 | * can assign it to the sgl. | |
5897 | */ | |
5898 | bde.tus.w = le32_to_cpu(bpl->tus.w); | |
5899 | sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize); | |
4f774513 JS |
5900 | bpl++; |
5901 | sgl++; | |
5902 | } | |
5903 | } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) { | |
5904 | /* The addrHigh and addrLow fields of the BDE have not | |
5905 | * been byteswapped yet so they need to be swapped | |
5906 | * before putting them in the sgl. | |
5907 | */ | |
5908 | sgl->addr_hi = | |
5909 | cpu_to_le32(icmd->un.genreq64.bdl.addrHigh); | |
5910 | sgl->addr_lo = | |
5911 | cpu_to_le32(icmd->un.genreq64.bdl.addrLow); | |
4f774513 JS |
5912 | bf_set(lpfc_sli4_sge_last, sgl, 1); |
5913 | sgl->word2 = cpu_to_le32(sgl->word2); | |
28baac74 JS |
5914 | sgl->sge_len = |
5915 | cpu_to_le32(icmd->un.genreq64.bdl.bdeSize); | |
4f774513 JS |
5916 | } |
5917 | return sglq->sli4_xritag; | |
3772a991 | 5918 | } |
92d7f7b0 | 5919 | |
e59058c4 | 5920 | /** |
4f774513 | 5921 | * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution |
e59058c4 | 5922 | * @phba: Pointer to HBA context object. |
e59058c4 | 5923 | * |
4f774513 | 5924 | * This routine performs a round robin SCSI command to SLI4 FCP WQ index |
8fa38513 JS |
5925 | * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock |
5926 | * held. | |
4f774513 JS |
5927 | * |
5928 | * Return: index into SLI4 fast-path FCP queue index. | |
e59058c4 | 5929 | **/ |
4f774513 | 5930 | static uint32_t |
8fa38513 | 5931 | lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba) |
92d7f7b0 | 5932 | { |
8fa38513 JS |
5933 | ++phba->fcp_qidx; |
5934 | if (phba->fcp_qidx >= phba->cfg_fcp_wq_count) | |
5935 | phba->fcp_qidx = 0; | |
92d7f7b0 | 5936 | |
8fa38513 | 5937 | return phba->fcp_qidx; |
92d7f7b0 JS |
5938 | } |
5939 | ||
e59058c4 | 5940 | /** |
4f774513 | 5941 | * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry. |
e59058c4 | 5942 | * @phba: Pointer to HBA context object. |
4f774513 JS |
5943 | * @piocb: Pointer to command iocb. |
5944 | * @wqe: Pointer to the work queue entry. | |
e59058c4 | 5945 | * |
4f774513 JS |
5946 | * This routine converts the iocb command to its Work Queue Entry |
5947 | * equivalent. The wqe pointer should not have any fields set when | |
5948 | * this routine is called because it will memcpy over them. | |
5949 | * This routine does not set the CQ_ID or the WQEC bits in the | |
5950 | * wqe. | |
e59058c4 | 5951 | * |
4f774513 | 5952 | * Returns: 0 = Success, IOCB_ERROR = Failure. |
e59058c4 | 5953 | **/ |
cf5bf97e | 5954 | static int |
4f774513 JS |
5955 | lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq, |
5956 | union lpfc_wqe *wqe) | |
cf5bf97e | 5957 | { |
5ffc266e | 5958 | uint32_t xmit_len = 0, total_len = 0; |
4f774513 JS |
5959 | uint8_t ct = 0; |
5960 | uint32_t fip; | |
5961 | uint32_t abort_tag; | |
5962 | uint8_t command_type = ELS_COMMAND_NON_FIP; | |
5963 | uint8_t cmnd; | |
5964 | uint16_t xritag; | |
dcf2a4e0 JS |
5965 | uint16_t abrt_iotag; |
5966 | struct lpfc_iocbq *abrtiocbq; | |
4f774513 | 5967 | struct ulp_bde64 *bpl = NULL; |
c868595d | 5968 | uint32_t els_id = ELS_ID_DEFAULT; |
5ffc266e JS |
5969 | int numBdes, i; |
5970 | struct ulp_bde64 bde; | |
4f774513 | 5971 | |
45ed1190 | 5972 | fip = phba->hba_flag & HBA_FIP_SUPPORT; |
4f774513 | 5973 | /* The fcp commands will set command type */ |
0c287589 | 5974 | if (iocbq->iocb_flag & LPFC_IO_FCP) |
4f774513 | 5975 | command_type = FCP_COMMAND; |
c868595d | 5976 | else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)) |
0c287589 JS |
5977 | command_type = ELS_COMMAND_FIP; |
5978 | else | |
5979 | command_type = ELS_COMMAND_NON_FIP; | |
5980 | ||
4f774513 JS |
5981 | /* Some of the fields are in the right position already */ |
5982 | memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe)); | |
5983 | abort_tag = (uint32_t) iocbq->iotag; | |
5984 | xritag = iocbq->sli4_xritag; | |
5985 | wqe->words[7] = 0; /* The ct field has moved so reset */ | |
5986 | /* words0-2 bpl convert bde */ | |
5987 | if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) { | |
5ffc266e JS |
5988 | numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize / |
5989 | sizeof(struct ulp_bde64); | |
4f774513 JS |
5990 | bpl = (struct ulp_bde64 *) |
5991 | ((struct lpfc_dmabuf *)iocbq->context3)->virt; | |
5992 | if (!bpl) | |
5993 | return IOCB_ERROR; | |
cf5bf97e | 5994 | |
4f774513 JS |
5995 | /* Should already be byte swapped. */ |
5996 | wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh); | |
5997 | wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow); | |
5998 | /* swap the size field back to the cpu so we | |
5999 | * can assign it to the sgl. | |
6000 | */ | |
6001 | wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w); | |
5ffc266e JS |
6002 | xmit_len = wqe->generic.bde.tus.f.bdeSize; |
6003 | total_len = 0; | |
6004 | for (i = 0; i < numBdes; i++) { | |
6005 | bde.tus.w = le32_to_cpu(bpl[i].tus.w); | |
6006 | total_len += bde.tus.f.bdeSize; | |
6007 | } | |
4f774513 | 6008 | } else |
5ffc266e | 6009 | xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize; |
cf5bf97e | 6010 | |
4f774513 JS |
6011 | iocbq->iocb.ulpIoTag = iocbq->iotag; |
6012 | cmnd = iocbq->iocb.ulpCommand; | |
a4bc3379 | 6013 | |
4f774513 JS |
6014 | switch (iocbq->iocb.ulpCommand) { |
6015 | case CMD_ELS_REQUEST64_CR: | |
6016 | if (!iocbq->iocb.ulpLe) { | |
6017 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
6018 | "2007 Only Limited Edition cmd Format" | |
6019 | " supported 0x%x\n", | |
6020 | iocbq->iocb.ulpCommand); | |
6021 | return IOCB_ERROR; | |
6022 | } | |
5ffc266e | 6023 | wqe->els_req.payload_len = xmit_len; |
4f774513 JS |
6024 | /* Els_reguest64 has a TMO */ |
6025 | bf_set(wqe_tmo, &wqe->els_req.wqe_com, | |
6026 | iocbq->iocb.ulpTimeout); | |
6027 | /* Need a VF for word 4 set the vf bit*/ | |
6028 | bf_set(els_req64_vf, &wqe->els_req, 0); | |
6029 | /* And a VFID for word 12 */ | |
6030 | bf_set(els_req64_vfid, &wqe->els_req, 0); | |
6031 | /* | |
6032 | * Set ct field to 3, indicates that the context_tag field | |
6033 | * contains the FCFI and remote N_Port_ID is | |
6034 | * in word 5. | |
6035 | */ | |
6036 | ||
6037 | ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l); | |
6038 | bf_set(lpfc_wqe_gen_context, &wqe->generic, | |
6039 | iocbq->iocb.ulpContext); | |
6040 | ||
4f774513 JS |
6041 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, ct); |
6042 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0); | |
6043 | /* CCP CCPE PV PRI in word10 were set in the memcpy */ | |
c868595d JS |
6044 | |
6045 | if (command_type == ELS_COMMAND_FIP) { | |
6046 | els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK) | |
6047 | >> LPFC_FIP_ELS_ID_SHIFT); | |
6048 | } | |
6049 | bf_set(lpfc_wqe_gen_els_id, &wqe->generic, els_id); | |
6050 | ||
4f774513 | 6051 | break; |
5ffc266e JS |
6052 | case CMD_XMIT_SEQUENCE64_CX: |
6053 | bf_set(lpfc_wqe_gen_context, &wqe->generic, | |
6054 | iocbq->iocb.un.ulpWord[3]); | |
6055 | wqe->generic.word3 = 0; | |
6056 | bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext); | |
5ffc266e JS |
6057 | /* The entire sequence is transmitted for this IOCB */ |
6058 | xmit_len = total_len; | |
6059 | cmnd = CMD_XMIT_SEQUENCE64_CR; | |
4f774513 JS |
6060 | case CMD_XMIT_SEQUENCE64_CR: |
6061 | /* word3 iocb=io_tag32 wqe=payload_offset */ | |
6062 | /* payload offset used for multilpe outstanding | |
6063 | * sequences on the same exchange | |
6064 | */ | |
6065 | wqe->words[3] = 0; | |
6066 | /* word4 relative_offset memcpy */ | |
6067 | /* word5 r_ctl/df_ctl memcpy */ | |
6068 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0); | |
5ffc266e JS |
6069 | wqe->xmit_sequence.xmit_len = xmit_len; |
6070 | command_type = OTHER_COMMAND; | |
4f774513 JS |
6071 | break; |
6072 | case CMD_XMIT_BCAST64_CN: | |
6073 | /* word3 iocb=iotag32 wqe=payload_len */ | |
6074 | wqe->words[3] = 0; /* no definition for this in wqe */ | |
6075 | /* word4 iocb=rsvd wqe=rsvd */ | |
6076 | /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */ | |
6077 | /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */ | |
6078 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, | |
6079 | ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l)); | |
6080 | break; | |
6081 | case CMD_FCP_IWRITE64_CR: | |
6082 | command_type = FCP_COMMAND_DATA_OUT; | |
6083 | /* The struct for wqe fcp_iwrite has 3 fields that are somewhat | |
6084 | * confusing. | |
6085 | * word3 is payload_len: byte offset to the sgl entry for the | |
6086 | * fcp_command. | |
6087 | * word4 is total xfer len, same as the IOCB->ulpParameter. | |
6088 | * word5 is initial xfer len 0 = wait for xfer-ready | |
6089 | */ | |
6090 | ||
6091 | /* Always wait for xfer-ready before sending data */ | |
6092 | wqe->fcp_iwrite.initial_xfer_len = 0; | |
6093 | /* word 4 (xfer length) should have been set on the memcpy */ | |
6094 | ||
6095 | /* allow write to fall through to read */ | |
6096 | case CMD_FCP_IREAD64_CR: | |
6097 | /* FCP_CMD is always the 1st sgl entry */ | |
6098 | wqe->fcp_iread.payload_len = | |
5ffc266e | 6099 | xmit_len + sizeof(struct fcp_rsp); |
4f774513 JS |
6100 | |
6101 | /* word 4 (xfer length) should have been set on the memcpy */ | |
6102 | ||
6103 | bf_set(lpfc_wqe_gen_erp, &wqe->generic, | |
6104 | iocbq->iocb.ulpFCP2Rcvy); | |
6105 | bf_set(lpfc_wqe_gen_lnk, &wqe->generic, iocbq->iocb.ulpXS); | |
6106 | /* The XC bit and the XS bit are similar. The driver never | |
6107 | * tracked whether or not the exchange was previouslly open. | |
6108 | * XC = Exchange create, 0 is create. 1 is already open. | |
6109 | * XS = link cmd: 1 do not close the exchange after command. | |
6110 | * XS = 0 close exchange when command completes. | |
6111 | * The only time we would not set the XC bit is when the XS bit | |
6112 | * is set and we are sending our 2nd or greater command on | |
6113 | * this exchange. | |
6114 | */ | |
f1126688 JS |
6115 | /* Always open the exchange */ |
6116 | bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0); | |
4f774513 | 6117 | |
f1126688 JS |
6118 | wqe->words[10] &= 0xffff0000; /* zero out ebde count */ |
6119 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU); | |
6120 | break; | |
4f774513 JS |
6121 | case CMD_FCP_ICMND64_CR: |
6122 | /* Always open the exchange */ | |
6123 | bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0); | |
6124 | ||
f1126688 | 6125 | wqe->words[4] = 0; |
4f774513 | 6126 | wqe->words[10] &= 0xffff0000; /* zero out ebde count */ |
f1126688 | 6127 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0); |
4f774513 JS |
6128 | break; |
6129 | case CMD_GEN_REQUEST64_CR: | |
6130 | /* word3 command length is described as byte offset to the | |
6131 | * rsp_data. Would always be 16, sizeof(struct sli4_sge) | |
6132 | * sgl[0] = cmnd | |
6133 | * sgl[1] = rsp. | |
6134 | * | |
6135 | */ | |
5ffc266e | 6136 | wqe->gen_req.command_len = xmit_len; |
4f774513 JS |
6137 | /* Word4 parameter copied in the memcpy */ |
6138 | /* Word5 [rctl, type, df_ctl, la] copied in memcpy */ | |
6139 | /* word6 context tag copied in memcpy */ | |
6140 | if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) { | |
6141 | ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l); | |
6142 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
6143 | "2015 Invalid CT %x command 0x%x\n", | |
6144 | ct, iocbq->iocb.ulpCommand); | |
6145 | return IOCB_ERROR; | |
6146 | } | |
6147 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, 0); | |
6148 | bf_set(wqe_tmo, &wqe->gen_req.wqe_com, | |
6149 | iocbq->iocb.ulpTimeout); | |
6150 | ||
6151 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU); | |
6152 | command_type = OTHER_COMMAND; | |
6153 | break; | |
6154 | case CMD_XMIT_ELS_RSP64_CX: | |
6155 | /* words0-2 BDE memcpy */ | |
6156 | /* word3 iocb=iotag32 wqe=rsvd */ | |
6157 | wqe->words[3] = 0; | |
6158 | /* word4 iocb=did wge=rsvd. */ | |
6159 | wqe->words[4] = 0; | |
6160 | /* word5 iocb=rsvd wge=did */ | |
6161 | bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest, | |
6162 | iocbq->iocb.un.elsreq64.remoteID); | |
6163 | ||
6164 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, | |
6165 | ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l)); | |
6166 | ||
6167 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU); | |
6168 | bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext); | |
6169 | if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l) | |
6170 | bf_set(lpfc_wqe_gen_context, &wqe->generic, | |
6171 | iocbq->vport->vpi + phba->vpi_base); | |
6172 | command_type = OTHER_COMMAND; | |
6173 | break; | |
6174 | case CMD_CLOSE_XRI_CN: | |
6175 | case CMD_ABORT_XRI_CN: | |
6176 | case CMD_ABORT_XRI_CX: | |
6177 | /* words 0-2 memcpy should be 0 rserved */ | |
6178 | /* port will send abts */ | |
dcf2a4e0 JS |
6179 | abrt_iotag = iocbq->iocb.un.acxri.abortContextTag; |
6180 | if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) { | |
6181 | abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag]; | |
6182 | fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK; | |
6183 | } else | |
6184 | fip = 0; | |
6185 | ||
6186 | if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip) | |
4f774513 | 6187 | /* |
dcf2a4e0 JS |
6188 | * The link is down, or the command was ELS_FIP |
6189 | * so the fw does not need to send abts | |
4f774513 JS |
6190 | * on the wire. |
6191 | */ | |
6192 | bf_set(abort_cmd_ia, &wqe->abort_cmd, 1); | |
6193 | else | |
6194 | bf_set(abort_cmd_ia, &wqe->abort_cmd, 0); | |
6195 | bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG); | |
4f774513 JS |
6196 | wqe->words[5] = 0; |
6197 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, | |
6198 | ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l)); | |
6199 | abort_tag = iocbq->iocb.un.acxri.abortIoTag; | |
4f774513 JS |
6200 | /* |
6201 | * The abort handler will send us CMD_ABORT_XRI_CN or | |
6202 | * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX | |
6203 | */ | |
6204 | bf_set(lpfc_wqe_gen_command, &wqe->generic, CMD_ABORT_XRI_CX); | |
6205 | cmnd = CMD_ABORT_XRI_CX; | |
6206 | command_type = OTHER_COMMAND; | |
6207 | xritag = 0; | |
6208 | break; | |
6669f9bb JS |
6209 | case CMD_XMIT_BLS_RSP64_CX: |
6210 | /* As BLS ABTS-ACC WQE is very different from other WQEs, | |
6211 | * we re-construct this WQE here based on information in | |
6212 | * iocbq from scratch. | |
6213 | */ | |
6214 | memset(wqe, 0, sizeof(union lpfc_wqe)); | |
5ffc266e | 6215 | /* OX_ID is invariable to who sent ABTS to CT exchange */ |
6669f9bb | 6216 | bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp, |
5ffc266e JS |
6217 | bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_acc)); |
6218 | if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_acc) == | |
6219 | LPFC_ABTS_UNSOL_INT) { | |
6220 | /* ABTS sent by initiator to CT exchange, the | |
6221 | * RX_ID field will be filled with the newly | |
6222 | * allocated responder XRI. | |
6223 | */ | |
6224 | bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp, | |
6225 | iocbq->sli4_xritag); | |
6226 | } else { | |
6227 | /* ABTS sent by responder to CT exchange, the | |
6228 | * RX_ID field will be filled with the responder | |
6229 | * RX_ID from ABTS. | |
6230 | */ | |
6231 | bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp, | |
6232 | bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_acc)); | |
6233 | } | |
6669f9bb JS |
6234 | bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff); |
6235 | bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1); | |
6236 | bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com, | |
6237 | iocbq->iocb.ulpContext); | |
6238 | /* Overwrite the pre-set comnd type with OTHER_COMMAND */ | |
6239 | command_type = OTHER_COMMAND; | |
6240 | break; | |
4f774513 JS |
6241 | case CMD_XRI_ABORTED_CX: |
6242 | case CMD_CREATE_XRI_CR: /* Do we expect to use this? */ | |
6243 | /* words0-2 are all 0's no bde */ | |
6244 | /* word3 and word4 are rsvrd */ | |
6245 | wqe->words[3] = 0; | |
6246 | wqe->words[4] = 0; | |
6247 | /* word5 iocb=rsvd wge=did */ | |
6248 | /* There is no remote port id in the IOCB? */ | |
6249 | /* Let this fall through and fail */ | |
6250 | case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */ | |
6251 | case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */ | |
6252 | case CMD_FCP_TRSP64_CX: /* Target mode rcv */ | |
6253 | case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */ | |
6254 | default: | |
6255 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
6256 | "2014 Invalid command 0x%x\n", | |
6257 | iocbq->iocb.ulpCommand); | |
6258 | return IOCB_ERROR; | |
6259 | break; | |
6260 | ||
6261 | } | |
6262 | bf_set(lpfc_wqe_gen_xri, &wqe->generic, xritag); | |
6263 | bf_set(lpfc_wqe_gen_request_tag, &wqe->generic, iocbq->iotag); | |
6264 | wqe->generic.abort_tag = abort_tag; | |
6265 | bf_set(lpfc_wqe_gen_cmd_type, &wqe->generic, command_type); | |
6266 | bf_set(lpfc_wqe_gen_command, &wqe->generic, cmnd); | |
6267 | bf_set(lpfc_wqe_gen_class, &wqe->generic, iocbq->iocb.ulpClass); | |
6268 | bf_set(lpfc_wqe_gen_cq_id, &wqe->generic, LPFC_WQE_CQ_ID_DEFAULT); | |
6269 | ||
6270 | return 0; | |
6271 | } | |
6272 | ||
6273 | /** | |
6274 | * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb | |
6275 | * @phba: Pointer to HBA context object. | |
6276 | * @ring_number: SLI ring number to issue iocb on. | |
6277 | * @piocb: Pointer to command iocb. | |
6278 | * @flag: Flag indicating if this command can be put into txq. | |
6279 | * | |
6280 | * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue | |
6281 | * an iocb command to an HBA with SLI-4 interface spec. | |
6282 | * | |
6283 | * This function is called with hbalock held. The function will return success | |
6284 | * after it successfully submit the iocb to firmware or after adding to the | |
6285 | * txq. | |
6286 | **/ | |
6287 | static int | |
6288 | __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number, | |
6289 | struct lpfc_iocbq *piocb, uint32_t flag) | |
6290 | { | |
6291 | struct lpfc_sglq *sglq; | |
4f774513 JS |
6292 | union lpfc_wqe wqe; |
6293 | struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number]; | |
4f774513 JS |
6294 | |
6295 | if (piocb->sli4_xritag == NO_XRI) { | |
6296 | if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN || | |
6669f9bb | 6297 | piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN) |
4f774513 JS |
6298 | sglq = NULL; |
6299 | else { | |
2a9bf3d0 JS |
6300 | if (pring->txq_cnt) { |
6301 | if (!(flag & SLI_IOCB_RET_IOCB)) { | |
6302 | __lpfc_sli_ringtx_put(phba, | |
6303 | pring, piocb); | |
6304 | return IOCB_SUCCESS; | |
6305 | } else { | |
6306 | return IOCB_BUSY; | |
6307 | } | |
6308 | } else { | |
4f774513 | 6309 | sglq = __lpfc_sli_get_sglq(phba); |
2a9bf3d0 JS |
6310 | if (!sglq) { |
6311 | if (!(flag & SLI_IOCB_RET_IOCB)) { | |
6312 | __lpfc_sli_ringtx_put(phba, | |
6313 | pring, | |
6314 | piocb); | |
6315 | return IOCB_SUCCESS; | |
6316 | } else | |
6317 | return IOCB_BUSY; | |
6318 | } | |
6319 | } | |
4f774513 JS |
6320 | } |
6321 | } else if (piocb->iocb_flag & LPFC_IO_FCP) { | |
6322 | sglq = NULL; /* These IO's already have an XRI and | |
6323 | * a mapped sgl. | |
6324 | */ | |
6325 | } else { | |
6326 | /* This is a continuation of a commandi,(CX) so this | |
6327 | * sglq is on the active list | |
6328 | */ | |
6329 | sglq = __lpfc_get_active_sglq(phba, piocb->sli4_xritag); | |
6330 | if (!sglq) | |
6331 | return IOCB_ERROR; | |
6332 | } | |
6333 | ||
6334 | if (sglq) { | |
2a9bf3d0 JS |
6335 | piocb->sli4_xritag = sglq->sli4_xritag; |
6336 | ||
6337 | if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq)) | |
4f774513 JS |
6338 | return IOCB_ERROR; |
6339 | } | |
6340 | ||
6341 | if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe)) | |
6342 | return IOCB_ERROR; | |
6343 | ||
341af102 JS |
6344 | if ((piocb->iocb_flag & LPFC_IO_FCP) || |
6345 | (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) { | |
5ffc266e JS |
6346 | /* |
6347 | * For FCP command IOCB, get a new WQ index to distribute | |
6348 | * WQE across the WQsr. On the other hand, for abort IOCB, | |
6349 | * it carries the same WQ index to the original command | |
6350 | * IOCB. | |
6351 | */ | |
341af102 | 6352 | if (piocb->iocb_flag & LPFC_IO_FCP) |
5ffc266e JS |
6353 | piocb->fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba); |
6354 | if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx], | |
6355 | &wqe)) | |
4f774513 JS |
6356 | return IOCB_ERROR; |
6357 | } else { | |
6358 | if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe)) | |
6359 | return IOCB_ERROR; | |
6360 | } | |
6361 | lpfc_sli_ringtxcmpl_put(phba, pring, piocb); | |
6362 | ||
6363 | return 0; | |
6364 | } | |
6365 | ||
6366 | /** | |
6367 | * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb | |
6368 | * | |
6369 | * This routine wraps the actual lockless version for issusing IOCB function | |
6370 | * pointer from the lpfc_hba struct. | |
6371 | * | |
6372 | * Return codes: | |
6373 | * IOCB_ERROR - Error | |
6374 | * IOCB_SUCCESS - Success | |
6375 | * IOCB_BUSY - Busy | |
6376 | **/ | |
2a9bf3d0 | 6377 | int |
4f774513 JS |
6378 | __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number, |
6379 | struct lpfc_iocbq *piocb, uint32_t flag) | |
6380 | { | |
6381 | return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag); | |
6382 | } | |
6383 | ||
6384 | /** | |
6385 | * lpfc_sli_api_table_setup - Set up sli api fucntion jump table | |
6386 | * @phba: The hba struct for which this call is being executed. | |
6387 | * @dev_grp: The HBA PCI-Device group number. | |
6388 | * | |
6389 | * This routine sets up the SLI interface API function jump table in @phba | |
6390 | * struct. | |
6391 | * Returns: 0 - success, -ENODEV - failure. | |
6392 | **/ | |
6393 | int | |
6394 | lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) | |
6395 | { | |
6396 | ||
6397 | switch (dev_grp) { | |
6398 | case LPFC_PCI_DEV_LP: | |
6399 | phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3; | |
6400 | phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3; | |
6401 | break; | |
6402 | case LPFC_PCI_DEV_OC: | |
6403 | phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4; | |
6404 | phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4; | |
6405 | break; | |
6406 | default: | |
6407 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6408 | "1419 Invalid HBA PCI-device group: 0x%x\n", | |
6409 | dev_grp); | |
6410 | return -ENODEV; | |
6411 | break; | |
6412 | } | |
6413 | phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq; | |
6414 | return 0; | |
6415 | } | |
6416 | ||
6417 | /** | |
6418 | * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb | |
6419 | * @phba: Pointer to HBA context object. | |
6420 | * @pring: Pointer to driver SLI ring object. | |
6421 | * @piocb: Pointer to command iocb. | |
6422 | * @flag: Flag indicating if this command can be put into txq. | |
6423 | * | |
6424 | * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb | |
6425 | * function. This function gets the hbalock and calls | |
6426 | * __lpfc_sli_issue_iocb function and will return the error returned | |
6427 | * by __lpfc_sli_issue_iocb function. This wrapper is used by | |
6428 | * functions which do not hold hbalock. | |
6429 | **/ | |
6430 | int | |
6431 | lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number, | |
6432 | struct lpfc_iocbq *piocb, uint32_t flag) | |
6433 | { | |
6434 | unsigned long iflags; | |
6435 | int rc; | |
6436 | ||
6437 | spin_lock_irqsave(&phba->hbalock, iflags); | |
6438 | rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag); | |
6439 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
6440 | ||
6441 | return rc; | |
6442 | } | |
6443 | ||
6444 | /** | |
6445 | * lpfc_extra_ring_setup - Extra ring setup function | |
6446 | * @phba: Pointer to HBA context object. | |
6447 | * | |
6448 | * This function is called while driver attaches with the | |
6449 | * HBA to setup the extra ring. The extra ring is used | |
6450 | * only when driver needs to support target mode functionality | |
6451 | * or IP over FC functionalities. | |
6452 | * | |
6453 | * This function is called with no lock held. | |
6454 | **/ | |
6455 | static int | |
6456 | lpfc_extra_ring_setup( struct lpfc_hba *phba) | |
6457 | { | |
6458 | struct lpfc_sli *psli; | |
6459 | struct lpfc_sli_ring *pring; | |
6460 | ||
6461 | psli = &phba->sli; | |
6462 | ||
6463 | /* Adjust cmd/rsp ring iocb entries more evenly */ | |
6464 | ||
6465 | /* Take some away from the FCP ring */ | |
6466 | pring = &psli->ring[psli->fcp_ring]; | |
6467 | pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
6468 | pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
cf5bf97e JW |
6469 | pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES; |
6470 | pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
6471 | ||
a4bc3379 JS |
6472 | /* and give them to the extra ring */ |
6473 | pring = &psli->ring[psli->extra_ring]; | |
6474 | ||
cf5bf97e JW |
6475 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; |
6476 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
6477 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
6478 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
6479 | ||
6480 | /* Setup default profile for this ring */ | |
6481 | pring->iotag_max = 4096; | |
6482 | pring->num_mask = 1; | |
6483 | pring->prt[0].profile = 0; /* Mask 0 */ | |
a4bc3379 JS |
6484 | pring->prt[0].rctl = phba->cfg_multi_ring_rctl; |
6485 | pring->prt[0].type = phba->cfg_multi_ring_type; | |
cf5bf97e JW |
6486 | pring->prt[0].lpfc_sli_rcv_unsol_event = NULL; |
6487 | return 0; | |
6488 | } | |
6489 | ||
e59058c4 | 6490 | /** |
3621a710 | 6491 | * lpfc_sli_async_event_handler - ASYNC iocb handler function |
e59058c4 JS |
6492 | * @phba: Pointer to HBA context object. |
6493 | * @pring: Pointer to driver SLI ring object. | |
6494 | * @iocbq: Pointer to iocb object. | |
6495 | * | |
6496 | * This function is called by the slow ring event handler | |
6497 | * function when there is an ASYNC event iocb in the ring. | |
6498 | * This function is called with no lock held. | |
6499 | * Currently this function handles only temperature related | |
6500 | * ASYNC events. The function decodes the temperature sensor | |
6501 | * event message and posts events for the management applications. | |
6502 | **/ | |
98c9ea5c | 6503 | static void |
57127f15 JS |
6504 | lpfc_sli_async_event_handler(struct lpfc_hba * phba, |
6505 | struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq) | |
6506 | { | |
6507 | IOCB_t *icmd; | |
6508 | uint16_t evt_code; | |
6509 | uint16_t temp; | |
6510 | struct temp_event temp_event_data; | |
6511 | struct Scsi_Host *shost; | |
a257bf90 | 6512 | uint32_t *iocb_w; |
57127f15 JS |
6513 | |
6514 | icmd = &iocbq->iocb; | |
6515 | evt_code = icmd->un.asyncstat.evt_code; | |
6516 | temp = icmd->ulpContext; | |
6517 | ||
6518 | if ((evt_code != ASYNC_TEMP_WARN) && | |
6519 | (evt_code != ASYNC_TEMP_SAFE)) { | |
a257bf90 | 6520 | iocb_w = (uint32_t *) icmd; |
57127f15 JS |
6521 | lpfc_printf_log(phba, |
6522 | KERN_ERR, | |
6523 | LOG_SLI, | |
76bb24ef | 6524 | "0346 Ring %d handler: unexpected ASYNC_STATUS" |
e4e74273 | 6525 | " evt_code 0x%x\n" |
a257bf90 JS |
6526 | "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n" |
6527 | "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n" | |
6528 | "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n" | |
6529 | "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n", | |
57127f15 | 6530 | pring->ringno, |
a257bf90 JS |
6531 | icmd->un.asyncstat.evt_code, |
6532 | iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3], | |
6533 | iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7], | |
6534 | iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11], | |
6535 | iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]); | |
6536 | ||
57127f15 JS |
6537 | return; |
6538 | } | |
6539 | temp_event_data.data = (uint32_t)temp; | |
6540 | temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; | |
6541 | if (evt_code == ASYNC_TEMP_WARN) { | |
6542 | temp_event_data.event_code = LPFC_THRESHOLD_TEMP; | |
6543 | lpfc_printf_log(phba, | |
09372820 | 6544 | KERN_ERR, |
57127f15 | 6545 | LOG_TEMP, |
76bb24ef | 6546 | "0347 Adapter is very hot, please take " |
57127f15 JS |
6547 | "corrective action. temperature : %d Celsius\n", |
6548 | temp); | |
6549 | } | |
6550 | if (evt_code == ASYNC_TEMP_SAFE) { | |
6551 | temp_event_data.event_code = LPFC_NORMAL_TEMP; | |
6552 | lpfc_printf_log(phba, | |
09372820 | 6553 | KERN_ERR, |
57127f15 JS |
6554 | LOG_TEMP, |
6555 | "0340 Adapter temperature is OK now. " | |
6556 | "temperature : %d Celsius\n", | |
6557 | temp); | |
6558 | } | |
6559 | ||
6560 | /* Send temperature change event to applications */ | |
6561 | shost = lpfc_shost_from_vport(phba->pport); | |
6562 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
6563 | sizeof(temp_event_data), (char *) &temp_event_data, | |
ddcc50f0 | 6564 | LPFC_NL_VENDOR_ID); |
57127f15 JS |
6565 | |
6566 | } | |
6567 | ||
6568 | ||
e59058c4 | 6569 | /** |
3621a710 | 6570 | * lpfc_sli_setup - SLI ring setup function |
e59058c4 JS |
6571 | * @phba: Pointer to HBA context object. |
6572 | * | |
6573 | * lpfc_sli_setup sets up rings of the SLI interface with | |
6574 | * number of iocbs per ring and iotags. This function is | |
6575 | * called while driver attach to the HBA and before the | |
6576 | * interrupts are enabled. So there is no need for locking. | |
6577 | * | |
6578 | * This function always returns 0. | |
6579 | **/ | |
dea3101e JB |
6580 | int |
6581 | lpfc_sli_setup(struct lpfc_hba *phba) | |
6582 | { | |
ed957684 | 6583 | int i, totiocbsize = 0; |
dea3101e JB |
6584 | struct lpfc_sli *psli = &phba->sli; |
6585 | struct lpfc_sli_ring *pring; | |
6586 | ||
6587 | psli->num_rings = MAX_CONFIGURED_RINGS; | |
6588 | psli->sli_flag = 0; | |
6589 | psli->fcp_ring = LPFC_FCP_RING; | |
6590 | psli->next_ring = LPFC_FCP_NEXT_RING; | |
a4bc3379 | 6591 | psli->extra_ring = LPFC_EXTRA_RING; |
dea3101e | 6592 | |
604a3e30 JB |
6593 | psli->iocbq_lookup = NULL; |
6594 | psli->iocbq_lookup_len = 0; | |
6595 | psli->last_iotag = 0; | |
6596 | ||
dea3101e JB |
6597 | for (i = 0; i < psli->num_rings; i++) { |
6598 | pring = &psli->ring[i]; | |
6599 | switch (i) { | |
6600 | case LPFC_FCP_RING: /* ring 0 - FCP */ | |
6601 | /* numCiocb and numRiocb are used in config_port */ | |
6602 | pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES; | |
6603 | pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES; | |
6604 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
6605 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
6606 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
6607 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
ed957684 | 6608 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6609 | SLI3_IOCB_CMD_SIZE : |
6610 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 6611 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6612 | SLI3_IOCB_RSP_SIZE : |
6613 | SLI2_IOCB_RSP_SIZE; | |
dea3101e JB |
6614 | pring->iotag_ctr = 0; |
6615 | pring->iotag_max = | |
92d7f7b0 | 6616 | (phba->cfg_hba_queue_depth * 2); |
dea3101e JB |
6617 | pring->fast_iotag = pring->iotag_max; |
6618 | pring->num_mask = 0; | |
6619 | break; | |
a4bc3379 | 6620 | case LPFC_EXTRA_RING: /* ring 1 - EXTRA */ |
dea3101e JB |
6621 | /* numCiocb and numRiocb are used in config_port */ |
6622 | pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES; | |
6623 | pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES; | |
ed957684 | 6624 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6625 | SLI3_IOCB_CMD_SIZE : |
6626 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 6627 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6628 | SLI3_IOCB_RSP_SIZE : |
6629 | SLI2_IOCB_RSP_SIZE; | |
2e0fef85 | 6630 | pring->iotag_max = phba->cfg_hba_queue_depth; |
dea3101e JB |
6631 | pring->num_mask = 0; |
6632 | break; | |
6633 | case LPFC_ELS_RING: /* ring 2 - ELS / CT */ | |
6634 | /* numCiocb and numRiocb are used in config_port */ | |
6635 | pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES; | |
6636 | pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES; | |
ed957684 | 6637 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6638 | SLI3_IOCB_CMD_SIZE : |
6639 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 6640 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6641 | SLI3_IOCB_RSP_SIZE : |
6642 | SLI2_IOCB_RSP_SIZE; | |
dea3101e JB |
6643 | pring->fast_iotag = 0; |
6644 | pring->iotag_ctr = 0; | |
6645 | pring->iotag_max = 4096; | |
57127f15 JS |
6646 | pring->lpfc_sli_rcv_async_status = |
6647 | lpfc_sli_async_event_handler; | |
6669f9bb | 6648 | pring->num_mask = LPFC_MAX_RING_MASK; |
dea3101e | 6649 | pring->prt[0].profile = 0; /* Mask 0 */ |
6a9c52cf JS |
6650 | pring->prt[0].rctl = FC_RCTL_ELS_REQ; |
6651 | pring->prt[0].type = FC_TYPE_ELS; | |
dea3101e | 6652 | pring->prt[0].lpfc_sli_rcv_unsol_event = |
92d7f7b0 | 6653 | lpfc_els_unsol_event; |
dea3101e | 6654 | pring->prt[1].profile = 0; /* Mask 1 */ |
6a9c52cf JS |
6655 | pring->prt[1].rctl = FC_RCTL_ELS_REP; |
6656 | pring->prt[1].type = FC_TYPE_ELS; | |
dea3101e | 6657 | pring->prt[1].lpfc_sli_rcv_unsol_event = |
92d7f7b0 | 6658 | lpfc_els_unsol_event; |
dea3101e JB |
6659 | pring->prt[2].profile = 0; /* Mask 2 */ |
6660 | /* NameServer Inquiry */ | |
6a9c52cf | 6661 | pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL; |
dea3101e | 6662 | /* NameServer */ |
6a9c52cf | 6663 | pring->prt[2].type = FC_TYPE_CT; |
dea3101e | 6664 | pring->prt[2].lpfc_sli_rcv_unsol_event = |
92d7f7b0 | 6665 | lpfc_ct_unsol_event; |
dea3101e JB |
6666 | pring->prt[3].profile = 0; /* Mask 3 */ |
6667 | /* NameServer response */ | |
6a9c52cf | 6668 | pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL; |
dea3101e | 6669 | /* NameServer */ |
6a9c52cf | 6670 | pring->prt[3].type = FC_TYPE_CT; |
dea3101e | 6671 | pring->prt[3].lpfc_sli_rcv_unsol_event = |
92d7f7b0 | 6672 | lpfc_ct_unsol_event; |
6669f9bb JS |
6673 | /* abort unsolicited sequence */ |
6674 | pring->prt[4].profile = 0; /* Mask 4 */ | |
6675 | pring->prt[4].rctl = FC_RCTL_BA_ABTS; | |
6676 | pring->prt[4].type = FC_TYPE_BLS; | |
6677 | pring->prt[4].lpfc_sli_rcv_unsol_event = | |
6678 | lpfc_sli4_ct_abort_unsol_event; | |
dea3101e JB |
6679 | break; |
6680 | } | |
ed957684 | 6681 | totiocbsize += (pring->numCiocb * pring->sizeCiocb) + |
92d7f7b0 | 6682 | (pring->numRiocb * pring->sizeRiocb); |
dea3101e | 6683 | } |
ed957684 | 6684 | if (totiocbsize > MAX_SLIM_IOCB_SIZE) { |
dea3101e | 6685 | /* Too many cmd / rsp ring entries in SLI2 SLIM */ |
e8b62011 JS |
6686 | printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in " |
6687 | "SLI2 SLIM Data: x%x x%lx\n", | |
6688 | phba->brd_no, totiocbsize, | |
6689 | (unsigned long) MAX_SLIM_IOCB_SIZE); | |
dea3101e | 6690 | } |
cf5bf97e JW |
6691 | if (phba->cfg_multi_ring_support == 2) |
6692 | lpfc_extra_ring_setup(phba); | |
dea3101e JB |
6693 | |
6694 | return 0; | |
6695 | } | |
6696 | ||
e59058c4 | 6697 | /** |
3621a710 | 6698 | * lpfc_sli_queue_setup - Queue initialization function |
e59058c4 JS |
6699 | * @phba: Pointer to HBA context object. |
6700 | * | |
6701 | * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each | |
6702 | * ring. This function also initializes ring indices of each ring. | |
6703 | * This function is called during the initialization of the SLI | |
6704 | * interface of an HBA. | |
6705 | * This function is called with no lock held and always returns | |
6706 | * 1. | |
6707 | **/ | |
dea3101e | 6708 | int |
2e0fef85 | 6709 | lpfc_sli_queue_setup(struct lpfc_hba *phba) |
dea3101e JB |
6710 | { |
6711 | struct lpfc_sli *psli; | |
6712 | struct lpfc_sli_ring *pring; | |
604a3e30 | 6713 | int i; |
dea3101e JB |
6714 | |
6715 | psli = &phba->sli; | |
2e0fef85 | 6716 | spin_lock_irq(&phba->hbalock); |
dea3101e | 6717 | INIT_LIST_HEAD(&psli->mboxq); |
92d7f7b0 | 6718 | INIT_LIST_HEAD(&psli->mboxq_cmpl); |
dea3101e JB |
6719 | /* Initialize list headers for txq and txcmplq as double linked lists */ |
6720 | for (i = 0; i < psli->num_rings; i++) { | |
6721 | pring = &psli->ring[i]; | |
6722 | pring->ringno = i; | |
6723 | pring->next_cmdidx = 0; | |
6724 | pring->local_getidx = 0; | |
6725 | pring->cmdidx = 0; | |
6726 | INIT_LIST_HEAD(&pring->txq); | |
6727 | INIT_LIST_HEAD(&pring->txcmplq); | |
6728 | INIT_LIST_HEAD(&pring->iocb_continueq); | |
9c2face6 | 6729 | INIT_LIST_HEAD(&pring->iocb_continue_saveq); |
dea3101e | 6730 | INIT_LIST_HEAD(&pring->postbufq); |
dea3101e | 6731 | } |
2e0fef85 JS |
6732 | spin_unlock_irq(&phba->hbalock); |
6733 | return 1; | |
dea3101e JB |
6734 | } |
6735 | ||
04c68496 JS |
6736 | /** |
6737 | * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system | |
6738 | * @phba: Pointer to HBA context object. | |
6739 | * | |
6740 | * This routine flushes the mailbox command subsystem. It will unconditionally | |
6741 | * flush all the mailbox commands in the three possible stages in the mailbox | |
6742 | * command sub-system: pending mailbox command queue; the outstanding mailbox | |
6743 | * command; and completed mailbox command queue. It is caller's responsibility | |
6744 | * to make sure that the driver is in the proper state to flush the mailbox | |
6745 | * command sub-system. Namely, the posting of mailbox commands into the | |
6746 | * pending mailbox command queue from the various clients must be stopped; | |
6747 | * either the HBA is in a state that it will never works on the outstanding | |
6748 | * mailbox command (such as in EEH or ERATT conditions) or the outstanding | |
6749 | * mailbox command has been completed. | |
6750 | **/ | |
6751 | static void | |
6752 | lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba) | |
6753 | { | |
6754 | LIST_HEAD(completions); | |
6755 | struct lpfc_sli *psli = &phba->sli; | |
6756 | LPFC_MBOXQ_t *pmb; | |
6757 | unsigned long iflag; | |
6758 | ||
6759 | /* Flush all the mailbox commands in the mbox system */ | |
6760 | spin_lock_irqsave(&phba->hbalock, iflag); | |
6761 | /* The pending mailbox command queue */ | |
6762 | list_splice_init(&phba->sli.mboxq, &completions); | |
6763 | /* The outstanding active mailbox command */ | |
6764 | if (psli->mbox_active) { | |
6765 | list_add_tail(&psli->mbox_active->list, &completions); | |
6766 | psli->mbox_active = NULL; | |
6767 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
6768 | } | |
6769 | /* The completed mailbox command queue */ | |
6770 | list_splice_init(&phba->sli.mboxq_cmpl, &completions); | |
6771 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
6772 | ||
6773 | /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */ | |
6774 | while (!list_empty(&completions)) { | |
6775 | list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list); | |
6776 | pmb->u.mb.mbxStatus = MBX_NOT_FINISHED; | |
6777 | if (pmb->mbox_cmpl) | |
6778 | pmb->mbox_cmpl(phba, pmb); | |
6779 | } | |
6780 | } | |
6781 | ||
e59058c4 | 6782 | /** |
3621a710 | 6783 | * lpfc_sli_host_down - Vport cleanup function |
e59058c4 JS |
6784 | * @vport: Pointer to virtual port object. |
6785 | * | |
6786 | * lpfc_sli_host_down is called to clean up the resources | |
6787 | * associated with a vport before destroying virtual | |
6788 | * port data structures. | |
6789 | * This function does following operations: | |
6790 | * - Free discovery resources associated with this virtual | |
6791 | * port. | |
6792 | * - Free iocbs associated with this virtual port in | |
6793 | * the txq. | |
6794 | * - Send abort for all iocb commands associated with this | |
6795 | * vport in txcmplq. | |
6796 | * | |
6797 | * This function is called with no lock held and always returns 1. | |
6798 | **/ | |
92d7f7b0 JS |
6799 | int |
6800 | lpfc_sli_host_down(struct lpfc_vport *vport) | |
6801 | { | |
858c9f6c | 6802 | LIST_HEAD(completions); |
92d7f7b0 JS |
6803 | struct lpfc_hba *phba = vport->phba; |
6804 | struct lpfc_sli *psli = &phba->sli; | |
6805 | struct lpfc_sli_ring *pring; | |
6806 | struct lpfc_iocbq *iocb, *next_iocb; | |
92d7f7b0 JS |
6807 | int i; |
6808 | unsigned long flags = 0; | |
6809 | uint16_t prev_pring_flag; | |
6810 | ||
6811 | lpfc_cleanup_discovery_resources(vport); | |
6812 | ||
6813 | spin_lock_irqsave(&phba->hbalock, flags); | |
92d7f7b0 JS |
6814 | for (i = 0; i < psli->num_rings; i++) { |
6815 | pring = &psli->ring[i]; | |
6816 | prev_pring_flag = pring->flag; | |
5e9d9b82 JS |
6817 | /* Only slow rings */ |
6818 | if (pring->ringno == LPFC_ELS_RING) { | |
858c9f6c | 6819 | pring->flag |= LPFC_DEFERRED_RING_EVENT; |
5e9d9b82 JS |
6820 | /* Set the lpfc data pending flag */ |
6821 | set_bit(LPFC_DATA_READY, &phba->data_flags); | |
6822 | } | |
92d7f7b0 JS |
6823 | /* |
6824 | * Error everything on the txq since these iocbs have not been | |
6825 | * given to the FW yet. | |
6826 | */ | |
92d7f7b0 JS |
6827 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { |
6828 | if (iocb->vport != vport) | |
6829 | continue; | |
858c9f6c | 6830 | list_move_tail(&iocb->list, &completions); |
92d7f7b0 | 6831 | pring->txq_cnt--; |
92d7f7b0 JS |
6832 | } |
6833 | ||
6834 | /* Next issue ABTS for everything on the txcmplq */ | |
6835 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, | |
6836 | list) { | |
6837 | if (iocb->vport != vport) | |
6838 | continue; | |
6839 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
6840 | } | |
6841 | ||
6842 | pring->flag = prev_pring_flag; | |
6843 | } | |
6844 | ||
6845 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
6846 | ||
a257bf90 JS |
6847 | /* Cancel all the IOCBs from the completions list */ |
6848 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6849 | IOERR_SLI_DOWN); | |
92d7f7b0 JS |
6850 | return 1; |
6851 | } | |
6852 | ||
e59058c4 | 6853 | /** |
3621a710 | 6854 | * lpfc_sli_hba_down - Resource cleanup function for the HBA |
e59058c4 JS |
6855 | * @phba: Pointer to HBA context object. |
6856 | * | |
6857 | * This function cleans up all iocb, buffers, mailbox commands | |
6858 | * while shutting down the HBA. This function is called with no | |
6859 | * lock held and always returns 1. | |
6860 | * This function does the following to cleanup driver resources: | |
6861 | * - Free discovery resources for each virtual port | |
6862 | * - Cleanup any pending fabric iocbs | |
6863 | * - Iterate through the iocb txq and free each entry | |
6864 | * in the list. | |
6865 | * - Free up any buffer posted to the HBA | |
6866 | * - Free mailbox commands in the mailbox queue. | |
6867 | **/ | |
dea3101e | 6868 | int |
2e0fef85 | 6869 | lpfc_sli_hba_down(struct lpfc_hba *phba) |
dea3101e | 6870 | { |
2534ba75 | 6871 | LIST_HEAD(completions); |
2e0fef85 | 6872 | struct lpfc_sli *psli = &phba->sli; |
dea3101e | 6873 | struct lpfc_sli_ring *pring; |
0ff10d46 | 6874 | struct lpfc_dmabuf *buf_ptr; |
dea3101e | 6875 | unsigned long flags = 0; |
04c68496 JS |
6876 | int i; |
6877 | ||
6878 | /* Shutdown the mailbox command sub-system */ | |
6879 | lpfc_sli_mbox_sys_shutdown(phba); | |
dea3101e | 6880 | |
dea3101e JB |
6881 | lpfc_hba_down_prep(phba); |
6882 | ||
92d7f7b0 JS |
6883 | lpfc_fabric_abort_hba(phba); |
6884 | ||
2e0fef85 | 6885 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e JB |
6886 | for (i = 0; i < psli->num_rings; i++) { |
6887 | pring = &psli->ring[i]; | |
5e9d9b82 JS |
6888 | /* Only slow rings */ |
6889 | if (pring->ringno == LPFC_ELS_RING) { | |
858c9f6c | 6890 | pring->flag |= LPFC_DEFERRED_RING_EVENT; |
5e9d9b82 JS |
6891 | /* Set the lpfc data pending flag */ |
6892 | set_bit(LPFC_DATA_READY, &phba->data_flags); | |
6893 | } | |
dea3101e JB |
6894 | |
6895 | /* | |
6896 | * Error everything on the txq since these iocbs have not been | |
6897 | * given to the FW yet. | |
6898 | */ | |
2534ba75 | 6899 | list_splice_init(&pring->txq, &completions); |
dea3101e JB |
6900 | pring->txq_cnt = 0; |
6901 | ||
2534ba75 | 6902 | } |
2e0fef85 | 6903 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e | 6904 | |
a257bf90 JS |
6905 | /* Cancel all the IOCBs from the completions list */ |
6906 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6907 | IOERR_SLI_DOWN); | |
dea3101e | 6908 | |
0ff10d46 JS |
6909 | spin_lock_irqsave(&phba->hbalock, flags); |
6910 | list_splice_init(&phba->elsbuf, &completions); | |
6911 | phba->elsbuf_cnt = 0; | |
6912 | phba->elsbuf_prev_cnt = 0; | |
6913 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
6914 | ||
6915 | while (!list_empty(&completions)) { | |
6916 | list_remove_head(&completions, buf_ptr, | |
6917 | struct lpfc_dmabuf, list); | |
6918 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
6919 | kfree(buf_ptr); | |
6920 | } | |
6921 | ||
dea3101e JB |
6922 | /* Return any active mbox cmds */ |
6923 | del_timer_sync(&psli->mbox_tmo); | |
2e0fef85 | 6924 | |
da0436e9 | 6925 | spin_lock_irqsave(&phba->pport->work_port_lock, flags); |
2e0fef85 | 6926 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; |
da0436e9 | 6927 | spin_unlock_irqrestore(&phba->pport->work_port_lock, flags); |
2e0fef85 | 6928 | |
da0436e9 JS |
6929 | return 1; |
6930 | } | |
6931 | ||
e59058c4 | 6932 | /** |
3621a710 | 6933 | * lpfc_sli_pcimem_bcopy - SLI memory copy function |
e59058c4 JS |
6934 | * @srcp: Source memory pointer. |
6935 | * @destp: Destination memory pointer. | |
6936 | * @cnt: Number of words required to be copied. | |
6937 | * | |
6938 | * This function is used for copying data between driver memory | |
6939 | * and the SLI memory. This function also changes the endianness | |
6940 | * of each word if native endianness is different from SLI | |
6941 | * endianness. This function can be called with or without | |
6942 | * lock. | |
6943 | **/ | |
dea3101e JB |
6944 | void |
6945 | lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt) | |
6946 | { | |
6947 | uint32_t *src = srcp; | |
6948 | uint32_t *dest = destp; | |
6949 | uint32_t ldata; | |
6950 | int i; | |
6951 | ||
6952 | for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) { | |
6953 | ldata = *src; | |
6954 | ldata = le32_to_cpu(ldata); | |
6955 | *dest = ldata; | |
6956 | src++; | |
6957 | dest++; | |
6958 | } | |
6959 | } | |
6960 | ||
e59058c4 | 6961 | |
a0c87cbd JS |
6962 | /** |
6963 | * lpfc_sli_bemem_bcopy - SLI memory copy function | |
6964 | * @srcp: Source memory pointer. | |
6965 | * @destp: Destination memory pointer. | |
6966 | * @cnt: Number of words required to be copied. | |
6967 | * | |
6968 | * This function is used for copying data between a data structure | |
6969 | * with big endian representation to local endianness. | |
6970 | * This function can be called with or without lock. | |
6971 | **/ | |
6972 | void | |
6973 | lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt) | |
6974 | { | |
6975 | uint32_t *src = srcp; | |
6976 | uint32_t *dest = destp; | |
6977 | uint32_t ldata; | |
6978 | int i; | |
6979 | ||
6980 | for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) { | |
6981 | ldata = *src; | |
6982 | ldata = be32_to_cpu(ldata); | |
6983 | *dest = ldata; | |
6984 | src++; | |
6985 | dest++; | |
6986 | } | |
6987 | } | |
6988 | ||
e59058c4 | 6989 | /** |
3621a710 | 6990 | * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq |
e59058c4 JS |
6991 | * @phba: Pointer to HBA context object. |
6992 | * @pring: Pointer to driver SLI ring object. | |
6993 | * @mp: Pointer to driver buffer object. | |
6994 | * | |
6995 | * This function is called with no lock held. | |
6996 | * It always return zero after adding the buffer to the postbufq | |
6997 | * buffer list. | |
6998 | **/ | |
dea3101e | 6999 | int |
2e0fef85 JS |
7000 | lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
7001 | struct lpfc_dmabuf *mp) | |
dea3101e JB |
7002 | { |
7003 | /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up | |
7004 | later */ | |
2e0fef85 | 7005 | spin_lock_irq(&phba->hbalock); |
dea3101e | 7006 | list_add_tail(&mp->list, &pring->postbufq); |
dea3101e | 7007 | pring->postbufq_cnt++; |
2e0fef85 | 7008 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
7009 | return 0; |
7010 | } | |
7011 | ||
e59058c4 | 7012 | /** |
3621a710 | 7013 | * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer |
e59058c4 JS |
7014 | * @phba: Pointer to HBA context object. |
7015 | * | |
7016 | * When HBQ is enabled, buffers are searched based on tags. This function | |
7017 | * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The | |
7018 | * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag | |
7019 | * does not conflict with tags of buffer posted for unsolicited events. | |
7020 | * The function returns the allocated tag. The function is called with | |
7021 | * no locks held. | |
7022 | **/ | |
76bb24ef JS |
7023 | uint32_t |
7024 | lpfc_sli_get_buffer_tag(struct lpfc_hba *phba) | |
7025 | { | |
7026 | spin_lock_irq(&phba->hbalock); | |
7027 | phba->buffer_tag_count++; | |
7028 | /* | |
7029 | * Always set the QUE_BUFTAG_BIT to distiguish between | |
7030 | * a tag assigned by HBQ. | |
7031 | */ | |
7032 | phba->buffer_tag_count |= QUE_BUFTAG_BIT; | |
7033 | spin_unlock_irq(&phba->hbalock); | |
7034 | return phba->buffer_tag_count; | |
7035 | } | |
7036 | ||
e59058c4 | 7037 | /** |
3621a710 | 7038 | * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag |
e59058c4 JS |
7039 | * @phba: Pointer to HBA context object. |
7040 | * @pring: Pointer to driver SLI ring object. | |
7041 | * @tag: Buffer tag. | |
7042 | * | |
7043 | * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq | |
7044 | * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX | |
7045 | * iocb is posted to the response ring with the tag of the buffer. | |
7046 | * This function searches the pring->postbufq list using the tag | |
7047 | * to find buffer associated with CMD_IOCB_RET_XRI64_CX | |
7048 | * iocb. If the buffer is found then lpfc_dmabuf object of the | |
7049 | * buffer is returned to the caller else NULL is returned. | |
7050 | * This function is called with no lock held. | |
7051 | **/ | |
76bb24ef JS |
7052 | struct lpfc_dmabuf * |
7053 | lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
7054 | uint32_t tag) | |
7055 | { | |
7056 | struct lpfc_dmabuf *mp, *next_mp; | |
7057 | struct list_head *slp = &pring->postbufq; | |
7058 | ||
7059 | /* Search postbufq, from the begining, looking for a match on tag */ | |
7060 | spin_lock_irq(&phba->hbalock); | |
7061 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { | |
7062 | if (mp->buffer_tag == tag) { | |
7063 | list_del_init(&mp->list); | |
7064 | pring->postbufq_cnt--; | |
7065 | spin_unlock_irq(&phba->hbalock); | |
7066 | return mp; | |
7067 | } | |
7068 | } | |
7069 | ||
7070 | spin_unlock_irq(&phba->hbalock); | |
7071 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
d7c255b2 | 7072 | "0402 Cannot find virtual addr for buffer tag on " |
76bb24ef JS |
7073 | "ring %d Data x%lx x%p x%p x%x\n", |
7074 | pring->ringno, (unsigned long) tag, | |
7075 | slp->next, slp->prev, pring->postbufq_cnt); | |
7076 | ||
7077 | return NULL; | |
7078 | } | |
dea3101e | 7079 | |
e59058c4 | 7080 | /** |
3621a710 | 7081 | * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events |
e59058c4 JS |
7082 | * @phba: Pointer to HBA context object. |
7083 | * @pring: Pointer to driver SLI ring object. | |
7084 | * @phys: DMA address of the buffer. | |
7085 | * | |
7086 | * This function searches the buffer list using the dma_address | |
7087 | * of unsolicited event to find the driver's lpfc_dmabuf object | |
7088 | * corresponding to the dma_address. The function returns the | |
7089 | * lpfc_dmabuf object if a buffer is found else it returns NULL. | |
7090 | * This function is called by the ct and els unsolicited event | |
7091 | * handlers to get the buffer associated with the unsolicited | |
7092 | * event. | |
7093 | * | |
7094 | * This function is called with no lock held. | |
7095 | **/ | |
dea3101e JB |
7096 | struct lpfc_dmabuf * |
7097 | lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
7098 | dma_addr_t phys) | |
7099 | { | |
7100 | struct lpfc_dmabuf *mp, *next_mp; | |
7101 | struct list_head *slp = &pring->postbufq; | |
7102 | ||
7103 | /* Search postbufq, from the begining, looking for a match on phys */ | |
2e0fef85 | 7104 | spin_lock_irq(&phba->hbalock); |
dea3101e JB |
7105 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { |
7106 | if (mp->phys == phys) { | |
7107 | list_del_init(&mp->list); | |
7108 | pring->postbufq_cnt--; | |
2e0fef85 | 7109 | spin_unlock_irq(&phba->hbalock); |
dea3101e JB |
7110 | return mp; |
7111 | } | |
7112 | } | |
7113 | ||
2e0fef85 | 7114 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 7115 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 7116 | "0410 Cannot find virtual addr for mapped buf on " |
dea3101e | 7117 | "ring %d Data x%llx x%p x%p x%x\n", |
e8b62011 | 7118 | pring->ringno, (unsigned long long)phys, |
dea3101e JB |
7119 | slp->next, slp->prev, pring->postbufq_cnt); |
7120 | return NULL; | |
7121 | } | |
7122 | ||
e59058c4 | 7123 | /** |
3621a710 | 7124 | * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs |
e59058c4 JS |
7125 | * @phba: Pointer to HBA context object. |
7126 | * @cmdiocb: Pointer to driver command iocb object. | |
7127 | * @rspiocb: Pointer to driver response iocb object. | |
7128 | * | |
7129 | * This function is the completion handler for the abort iocbs for | |
7130 | * ELS commands. This function is called from the ELS ring event | |
7131 | * handler with no lock held. This function frees memory resources | |
7132 | * associated with the abort iocb. | |
7133 | **/ | |
dea3101e | 7134 | static void |
2e0fef85 JS |
7135 | lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
7136 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 7137 | { |
2e0fef85 | 7138 | IOCB_t *irsp = &rspiocb->iocb; |
2680eeaa | 7139 | uint16_t abort_iotag, abort_context; |
92d7f7b0 | 7140 | struct lpfc_iocbq *abort_iocb; |
2680eeaa JS |
7141 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
7142 | ||
7143 | abort_iocb = NULL; | |
2680eeaa JS |
7144 | |
7145 | if (irsp->ulpStatus) { | |
7146 | abort_context = cmdiocb->iocb.un.acxri.abortContextTag; | |
7147 | abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag; | |
7148 | ||
2e0fef85 | 7149 | spin_lock_irq(&phba->hbalock); |
45ed1190 JS |
7150 | if (phba->sli_rev < LPFC_SLI_REV4) { |
7151 | if (abort_iotag != 0 && | |
7152 | abort_iotag <= phba->sli.last_iotag) | |
7153 | abort_iocb = | |
7154 | phba->sli.iocbq_lookup[abort_iotag]; | |
7155 | } else | |
7156 | /* For sli4 the abort_tag is the XRI, | |
7157 | * so the abort routine puts the iotag of the iocb | |
7158 | * being aborted in the context field of the abort | |
7159 | * IOCB. | |
7160 | */ | |
7161 | abort_iocb = phba->sli.iocbq_lookup[abort_context]; | |
2680eeaa | 7162 | |
58da1ffb JS |
7163 | /* |
7164 | * If the iocb is not found in Firmware queue the iocb | |
7165 | * might have completed already. Do not free it again. | |
7166 | */ | |
9b379605 | 7167 | if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) { |
45ed1190 JS |
7168 | if (irsp->un.ulpWord[4] != IOERR_NO_XRI) { |
7169 | spin_unlock_irq(&phba->hbalock); | |
7170 | lpfc_sli_release_iocbq(phba, cmdiocb); | |
7171 | return; | |
7172 | } | |
7173 | /* For SLI4 the ulpContext field for abort IOCB | |
7174 | * holds the iotag of the IOCB being aborted so | |
7175 | * the local abort_context needs to be reset to | |
7176 | * match the aborted IOCBs ulpContext. | |
7177 | */ | |
7178 | if (abort_iocb && phba->sli_rev == LPFC_SLI_REV4) | |
7179 | abort_context = abort_iocb->iocb.ulpContext; | |
58da1ffb | 7180 | } |
2a9bf3d0 JS |
7181 | |
7182 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI, | |
7183 | "0327 Cannot abort els iocb %p " | |
7184 | "with tag %x context %x, abort status %x, " | |
7185 | "abort code %x\n", | |
7186 | abort_iocb, abort_iotag, abort_context, | |
7187 | irsp->ulpStatus, irsp->un.ulpWord[4]); | |
2680eeaa JS |
7188 | /* |
7189 | * make sure we have the right iocbq before taking it | |
7190 | * off the txcmplq and try to call completion routine. | |
7191 | */ | |
2e0fef85 JS |
7192 | if (!abort_iocb || |
7193 | abort_iocb->iocb.ulpContext != abort_context || | |
7194 | (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0) | |
7195 | spin_unlock_irq(&phba->hbalock); | |
341af102 JS |
7196 | else if (phba->sli_rev < LPFC_SLI_REV4) { |
7197 | /* | |
7198 | * leave the SLI4 aborted command on the txcmplq | |
7199 | * list and the command complete WCQE's XB bit | |
7200 | * will tell whether the SGL (XRI) can be released | |
7201 | * immediately or to the aborted SGL list for the | |
7202 | * following abort XRI from the HBA. | |
7203 | */ | |
92d7f7b0 | 7204 | list_del_init(&abort_iocb->list); |
2a9bf3d0 JS |
7205 | if (abort_iocb->iocb_flag & LPFC_IO_ON_Q) { |
7206 | abort_iocb->iocb_flag &= ~LPFC_IO_ON_Q; | |
7207 | pring->txcmplq_cnt--; | |
7208 | } | |
2680eeaa | 7209 | |
0ff10d46 JS |
7210 | /* Firmware could still be in progress of DMAing |
7211 | * payload, so don't free data buffer till after | |
7212 | * a hbeat. | |
7213 | */ | |
7214 | abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE; | |
92d7f7b0 | 7215 | abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED; |
341af102 JS |
7216 | spin_unlock_irq(&phba->hbalock); |
7217 | ||
92d7f7b0 | 7218 | abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; |
341af102 | 7219 | abort_iocb->iocb.un.ulpWord[4] = IOERR_ABORT_REQUESTED; |
92d7f7b0 | 7220 | (abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb); |
49198b37 JS |
7221 | } else |
7222 | spin_unlock_irq(&phba->hbalock); | |
2680eeaa JS |
7223 | } |
7224 | ||
604a3e30 | 7225 | lpfc_sli_release_iocbq(phba, cmdiocb); |
dea3101e JB |
7226 | return; |
7227 | } | |
7228 | ||
e59058c4 | 7229 | /** |
3621a710 | 7230 | * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command |
e59058c4 JS |
7231 | * @phba: Pointer to HBA context object. |
7232 | * @cmdiocb: Pointer to driver command iocb object. | |
7233 | * @rspiocb: Pointer to driver response iocb object. | |
7234 | * | |
7235 | * The function is called from SLI ring event handler with no | |
7236 | * lock held. This function is the completion handler for ELS commands | |
7237 | * which are aborted. The function frees memory resources used for | |
7238 | * the aborted ELS commands. | |
7239 | **/ | |
92d7f7b0 JS |
7240 | static void |
7241 | lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7242 | struct lpfc_iocbq *rspiocb) | |
7243 | { | |
7244 | IOCB_t *irsp = &rspiocb->iocb; | |
7245 | ||
7246 | /* ELS cmd tag <ulpIoTag> completes */ | |
7247 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
d7c255b2 | 7248 | "0139 Ignoring ELS cmd tag x%x completion Data: " |
92d7f7b0 | 7249 | "x%x x%x x%x\n", |
e8b62011 | 7250 | irsp->ulpIoTag, irsp->ulpStatus, |
92d7f7b0 | 7251 | irsp->un.ulpWord[4], irsp->ulpTimeout); |
858c9f6c JS |
7252 | if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) |
7253 | lpfc_ct_free_iocb(phba, cmdiocb); | |
7254 | else | |
7255 | lpfc_els_free_iocb(phba, cmdiocb); | |
92d7f7b0 JS |
7256 | return; |
7257 | } | |
7258 | ||
e59058c4 | 7259 | /** |
3621a710 | 7260 | * lpfc_sli_issue_abort_iotag - Abort function for a command iocb |
e59058c4 JS |
7261 | * @phba: Pointer to HBA context object. |
7262 | * @pring: Pointer to driver SLI ring object. | |
7263 | * @cmdiocb: Pointer to driver command iocb object. | |
7264 | * | |
7265 | * This function issues an abort iocb for the provided command | |
7266 | * iocb. This function is called with hbalock held. | |
7267 | * The function returns 0 when it fails due to memory allocation | |
7268 | * failure or when the command iocb is an abort request. | |
7269 | **/ | |
dea3101e | 7270 | int |
2e0fef85 JS |
7271 | lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
7272 | struct lpfc_iocbq *cmdiocb) | |
dea3101e | 7273 | { |
2e0fef85 | 7274 | struct lpfc_vport *vport = cmdiocb->vport; |
0bd4ca25 | 7275 | struct lpfc_iocbq *abtsiocbp; |
dea3101e JB |
7276 | IOCB_t *icmd = NULL; |
7277 | IOCB_t *iabt = NULL; | |
07951076 JS |
7278 | int retval = IOCB_ERROR; |
7279 | ||
92d7f7b0 JS |
7280 | /* |
7281 | * There are certain command types we don't want to abort. And we | |
7282 | * don't want to abort commands that are already in the process of | |
7283 | * being aborted. | |
07951076 JS |
7284 | */ |
7285 | icmd = &cmdiocb->iocb; | |
2e0fef85 | 7286 | if (icmd->ulpCommand == CMD_ABORT_XRI_CN || |
92d7f7b0 JS |
7287 | icmd->ulpCommand == CMD_CLOSE_XRI_CN || |
7288 | (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0) | |
07951076 JS |
7289 | return 0; |
7290 | ||
858c9f6c JS |
7291 | /* If we're unloading, don't abort iocb on the ELS ring, but change the |
7292 | * callback so that nothing happens when it finishes. | |
07951076 | 7293 | */ |
858c9f6c JS |
7294 | if ((vport->load_flag & FC_UNLOADING) && |
7295 | (pring->ringno == LPFC_ELS_RING)) { | |
92d7f7b0 JS |
7296 | if (cmdiocb->iocb_flag & LPFC_IO_FABRIC) |
7297 | cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl; | |
7298 | else | |
7299 | cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl; | |
07951076 | 7300 | goto abort_iotag_exit; |
92d7f7b0 | 7301 | } |
dea3101e JB |
7302 | |
7303 | /* issue ABTS for this IOCB based on iotag */ | |
92d7f7b0 | 7304 | abtsiocbp = __lpfc_sli_get_iocbq(phba); |
dea3101e JB |
7305 | if (abtsiocbp == NULL) |
7306 | return 0; | |
dea3101e | 7307 | |
07951076 | 7308 | /* This signals the response to set the correct status |
341af102 | 7309 | * before calling the completion handler |
07951076 JS |
7310 | */ |
7311 | cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED; | |
7312 | ||
dea3101e | 7313 | iabt = &abtsiocbp->iocb; |
07951076 JS |
7314 | iabt->un.acxri.abortType = ABORT_TYPE_ABTS; |
7315 | iabt->un.acxri.abortContextTag = icmd->ulpContext; | |
45ed1190 | 7316 | if (phba->sli_rev == LPFC_SLI_REV4) { |
da0436e9 | 7317 | iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag; |
45ed1190 JS |
7318 | iabt->un.acxri.abortContextTag = cmdiocb->iotag; |
7319 | } | |
da0436e9 JS |
7320 | else |
7321 | iabt->un.acxri.abortIoTag = icmd->ulpIoTag; | |
07951076 JS |
7322 | iabt->ulpLe = 1; |
7323 | iabt->ulpClass = icmd->ulpClass; | |
dea3101e | 7324 | |
5ffc266e JS |
7325 | /* ABTS WQE must go to the same WQ as the WQE to be aborted */ |
7326 | abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx; | |
341af102 JS |
7327 | if (cmdiocb->iocb_flag & LPFC_IO_FCP) |
7328 | abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX; | |
5ffc266e | 7329 | |
2e0fef85 | 7330 | if (phba->link_state >= LPFC_LINK_UP) |
07951076 JS |
7331 | iabt->ulpCommand = CMD_ABORT_XRI_CN; |
7332 | else | |
7333 | iabt->ulpCommand = CMD_CLOSE_XRI_CN; | |
dea3101e | 7334 | |
07951076 | 7335 | abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl; |
5b8bd0c9 | 7336 | |
e8b62011 JS |
7337 | lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, |
7338 | "0339 Abort xri x%x, original iotag x%x, " | |
7339 | "abort cmd iotag x%x\n", | |
2a9bf3d0 | 7340 | iabt->un.acxri.abortIoTag, |
e8b62011 | 7341 | iabt->un.acxri.abortContextTag, |
2a9bf3d0 | 7342 | abtsiocbp->iotag); |
da0436e9 | 7343 | retval = __lpfc_sli_issue_iocb(phba, pring->ringno, abtsiocbp, 0); |
dea3101e | 7344 | |
d7c255b2 JS |
7345 | if (retval) |
7346 | __lpfc_sli_release_iocbq(phba, abtsiocbp); | |
07951076 | 7347 | abort_iotag_exit: |
2e0fef85 JS |
7348 | /* |
7349 | * Caller to this routine should check for IOCB_ERROR | |
7350 | * and handle it properly. This routine no longer removes | |
7351 | * iocb off txcmplq and call compl in case of IOCB_ERROR. | |
07951076 | 7352 | */ |
2e0fef85 | 7353 | return retval; |
dea3101e JB |
7354 | } |
7355 | ||
e59058c4 | 7356 | /** |
3621a710 | 7357 | * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN |
e59058c4 JS |
7358 | * @iocbq: Pointer to driver iocb object. |
7359 | * @vport: Pointer to driver virtual port object. | |
7360 | * @tgt_id: SCSI ID of the target. | |
7361 | * @lun_id: LUN ID of the scsi device. | |
7362 | * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST | |
7363 | * | |
3621a710 | 7364 | * This function acts as an iocb filter for functions which abort or count |
e59058c4 JS |
7365 | * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return |
7366 | * 0 if the filtering criteria is met for the given iocb and will return | |
7367 | * 1 if the filtering criteria is not met. | |
7368 | * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the | |
7369 | * given iocb is for the SCSI device specified by vport, tgt_id and | |
7370 | * lun_id parameter. | |
7371 | * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the | |
7372 | * given iocb is for the SCSI target specified by vport and tgt_id | |
7373 | * parameters. | |
7374 | * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the | |
7375 | * given iocb is for the SCSI host associated with the given vport. | |
7376 | * This function is called with no locks held. | |
7377 | **/ | |
dea3101e | 7378 | static int |
51ef4c26 JS |
7379 | lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport, |
7380 | uint16_t tgt_id, uint64_t lun_id, | |
0bd4ca25 | 7381 | lpfc_ctx_cmd ctx_cmd) |
dea3101e | 7382 | { |
0bd4ca25 | 7383 | struct lpfc_scsi_buf *lpfc_cmd; |
dea3101e JB |
7384 | int rc = 1; |
7385 | ||
0bd4ca25 JSEC |
7386 | if (!(iocbq->iocb_flag & LPFC_IO_FCP)) |
7387 | return rc; | |
7388 | ||
51ef4c26 JS |
7389 | if (iocbq->vport != vport) |
7390 | return rc; | |
7391 | ||
0bd4ca25 | 7392 | lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq); |
0bd4ca25 | 7393 | |
495a714c | 7394 | if (lpfc_cmd->pCmd == NULL) |
dea3101e JB |
7395 | return rc; |
7396 | ||
7397 | switch (ctx_cmd) { | |
7398 | case LPFC_CTX_LUN: | |
495a714c JS |
7399 | if ((lpfc_cmd->rdata->pnode) && |
7400 | (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) && | |
7401 | (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id)) | |
dea3101e JB |
7402 | rc = 0; |
7403 | break; | |
7404 | case LPFC_CTX_TGT: | |
495a714c JS |
7405 | if ((lpfc_cmd->rdata->pnode) && |
7406 | (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id)) | |
dea3101e JB |
7407 | rc = 0; |
7408 | break; | |
dea3101e JB |
7409 | case LPFC_CTX_HOST: |
7410 | rc = 0; | |
7411 | break; | |
7412 | default: | |
7413 | printk(KERN_ERR "%s: Unknown context cmd type, value %d\n", | |
cadbd4a5 | 7414 | __func__, ctx_cmd); |
dea3101e JB |
7415 | break; |
7416 | } | |
7417 | ||
7418 | return rc; | |
7419 | } | |
7420 | ||
e59058c4 | 7421 | /** |
3621a710 | 7422 | * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending |
e59058c4 JS |
7423 | * @vport: Pointer to virtual port. |
7424 | * @tgt_id: SCSI ID of the target. | |
7425 | * @lun_id: LUN ID of the scsi device. | |
7426 | * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST. | |
7427 | * | |
7428 | * This function returns number of FCP commands pending for the vport. | |
7429 | * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP | |
7430 | * commands pending on the vport associated with SCSI device specified | |
7431 | * by tgt_id and lun_id parameters. | |
7432 | * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP | |
7433 | * commands pending on the vport associated with SCSI target specified | |
7434 | * by tgt_id parameter. | |
7435 | * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP | |
7436 | * commands pending on the vport. | |
7437 | * This function returns the number of iocbs which satisfy the filter. | |
7438 | * This function is called without any lock held. | |
7439 | **/ | |
dea3101e | 7440 | int |
51ef4c26 JS |
7441 | lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id, |
7442 | lpfc_ctx_cmd ctx_cmd) | |
dea3101e | 7443 | { |
51ef4c26 | 7444 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 JSEC |
7445 | struct lpfc_iocbq *iocbq; |
7446 | int sum, i; | |
dea3101e | 7447 | |
0bd4ca25 JSEC |
7448 | for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) { |
7449 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 7450 | |
51ef4c26 JS |
7451 | if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id, |
7452 | ctx_cmd) == 0) | |
0bd4ca25 | 7453 | sum++; |
dea3101e | 7454 | } |
0bd4ca25 | 7455 | |
dea3101e JB |
7456 | return sum; |
7457 | } | |
7458 | ||
e59058c4 | 7459 | /** |
3621a710 | 7460 | * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs |
e59058c4 JS |
7461 | * @phba: Pointer to HBA context object |
7462 | * @cmdiocb: Pointer to command iocb object. | |
7463 | * @rspiocb: Pointer to response iocb object. | |
7464 | * | |
7465 | * This function is called when an aborted FCP iocb completes. This | |
7466 | * function is called by the ring event handler with no lock held. | |
7467 | * This function frees the iocb. | |
7468 | **/ | |
5eb95af0 | 7469 | void |
2e0fef85 JS |
7470 | lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
7471 | struct lpfc_iocbq *rspiocb) | |
5eb95af0 | 7472 | { |
604a3e30 | 7473 | lpfc_sli_release_iocbq(phba, cmdiocb); |
5eb95af0 JSEC |
7474 | return; |
7475 | } | |
7476 | ||
e59058c4 | 7477 | /** |
3621a710 | 7478 | * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN |
e59058c4 JS |
7479 | * @vport: Pointer to virtual port. |
7480 | * @pring: Pointer to driver SLI ring object. | |
7481 | * @tgt_id: SCSI ID of the target. | |
7482 | * @lun_id: LUN ID of the scsi device. | |
7483 | * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST. | |
7484 | * | |
7485 | * This function sends an abort command for every SCSI command | |
7486 | * associated with the given virtual port pending on the ring | |
7487 | * filtered by lpfc_sli_validate_fcp_iocb function. | |
7488 | * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the | |
7489 | * FCP iocbs associated with lun specified by tgt_id and lun_id | |
7490 | * parameters | |
7491 | * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the | |
7492 | * FCP iocbs associated with SCSI target specified by tgt_id parameter. | |
7493 | * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all | |
7494 | * FCP iocbs associated with virtual port. | |
7495 | * This function returns number of iocbs it failed to abort. | |
7496 | * This function is called with no locks held. | |
7497 | **/ | |
dea3101e | 7498 | int |
51ef4c26 JS |
7499 | lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring, |
7500 | uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd) | |
dea3101e | 7501 | { |
51ef4c26 | 7502 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 JSEC |
7503 | struct lpfc_iocbq *iocbq; |
7504 | struct lpfc_iocbq *abtsiocb; | |
dea3101e | 7505 | IOCB_t *cmd = NULL; |
dea3101e | 7506 | int errcnt = 0, ret_val = 0; |
0bd4ca25 | 7507 | int i; |
dea3101e | 7508 | |
0bd4ca25 JSEC |
7509 | for (i = 1; i <= phba->sli.last_iotag; i++) { |
7510 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 7511 | |
51ef4c26 | 7512 | if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id, |
2e0fef85 | 7513 | abort_cmd) != 0) |
dea3101e JB |
7514 | continue; |
7515 | ||
7516 | /* issue ABTS for this IOCB based on iotag */ | |
0bd4ca25 | 7517 | abtsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e JB |
7518 | if (abtsiocb == NULL) { |
7519 | errcnt++; | |
7520 | continue; | |
7521 | } | |
dea3101e | 7522 | |
0bd4ca25 | 7523 | cmd = &iocbq->iocb; |
dea3101e JB |
7524 | abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS; |
7525 | abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext; | |
da0436e9 JS |
7526 | if (phba->sli_rev == LPFC_SLI_REV4) |
7527 | abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag; | |
7528 | else | |
7529 | abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag; | |
dea3101e JB |
7530 | abtsiocb->iocb.ulpLe = 1; |
7531 | abtsiocb->iocb.ulpClass = cmd->ulpClass; | |
2e0fef85 | 7532 | abtsiocb->vport = phba->pport; |
dea3101e | 7533 | |
5ffc266e JS |
7534 | /* ABTS WQE must go to the same WQ as the WQE to be aborted */ |
7535 | abtsiocb->fcp_wqidx = iocbq->fcp_wqidx; | |
341af102 JS |
7536 | if (iocbq->iocb_flag & LPFC_IO_FCP) |
7537 | abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX; | |
5ffc266e | 7538 | |
2e0fef85 | 7539 | if (lpfc_is_link_up(phba)) |
dea3101e JB |
7540 | abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN; |
7541 | else | |
7542 | abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN; | |
7543 | ||
5eb95af0 JSEC |
7544 | /* Setup callback routine and issue the command. */ |
7545 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; | |
da0436e9 JS |
7546 | ret_val = lpfc_sli_issue_iocb(phba, pring->ringno, |
7547 | abtsiocb, 0); | |
dea3101e | 7548 | if (ret_val == IOCB_ERROR) { |
604a3e30 | 7549 | lpfc_sli_release_iocbq(phba, abtsiocb); |
dea3101e JB |
7550 | errcnt++; |
7551 | continue; | |
7552 | } | |
7553 | } | |
7554 | ||
7555 | return errcnt; | |
7556 | } | |
7557 | ||
e59058c4 | 7558 | /** |
3621a710 | 7559 | * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler |
e59058c4 JS |
7560 | * @phba: Pointer to HBA context object. |
7561 | * @cmdiocbq: Pointer to command iocb. | |
7562 | * @rspiocbq: Pointer to response iocb. | |
7563 | * | |
7564 | * This function is the completion handler for iocbs issued using | |
7565 | * lpfc_sli_issue_iocb_wait function. This function is called by the | |
7566 | * ring event handler function without any lock held. This function | |
7567 | * can be called from both worker thread context and interrupt | |
7568 | * context. This function also can be called from other thread which | |
7569 | * cleans up the SLI layer objects. | |
7570 | * This function copy the contents of the response iocb to the | |
7571 | * response iocb memory object provided by the caller of | |
7572 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
7573 | * sleeps for the iocb completion. | |
7574 | **/ | |
68876920 JSEC |
7575 | static void |
7576 | lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba, | |
7577 | struct lpfc_iocbq *cmdiocbq, | |
7578 | struct lpfc_iocbq *rspiocbq) | |
dea3101e | 7579 | { |
68876920 JSEC |
7580 | wait_queue_head_t *pdone_q; |
7581 | unsigned long iflags; | |
0f65ff68 | 7582 | struct lpfc_scsi_buf *lpfc_cmd; |
dea3101e | 7583 | |
2e0fef85 | 7584 | spin_lock_irqsave(&phba->hbalock, iflags); |
68876920 JSEC |
7585 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; |
7586 | if (cmdiocbq->context2 && rspiocbq) | |
7587 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
7588 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
7589 | ||
0f65ff68 JS |
7590 | /* Set the exchange busy flag for task management commands */ |
7591 | if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) && | |
7592 | !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) { | |
7593 | lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf, | |
7594 | cur_iocbq); | |
7595 | lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY; | |
7596 | } | |
7597 | ||
68876920 | 7598 | pdone_q = cmdiocbq->context_un.wait_queue; |
68876920 JSEC |
7599 | if (pdone_q) |
7600 | wake_up(pdone_q); | |
858c9f6c | 7601 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
dea3101e JB |
7602 | return; |
7603 | } | |
7604 | ||
d11e31dd JS |
7605 | /** |
7606 | * lpfc_chk_iocb_flg - Test IOCB flag with lock held. | |
7607 | * @phba: Pointer to HBA context object.. | |
7608 | * @piocbq: Pointer to command iocb. | |
7609 | * @flag: Flag to test. | |
7610 | * | |
7611 | * This routine grabs the hbalock and then test the iocb_flag to | |
7612 | * see if the passed in flag is set. | |
7613 | * Returns: | |
7614 | * 1 if flag is set. | |
7615 | * 0 if flag is not set. | |
7616 | **/ | |
7617 | static int | |
7618 | lpfc_chk_iocb_flg(struct lpfc_hba *phba, | |
7619 | struct lpfc_iocbq *piocbq, uint32_t flag) | |
7620 | { | |
7621 | unsigned long iflags; | |
7622 | int ret; | |
7623 | ||
7624 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7625 | ret = piocbq->iocb_flag & flag; | |
7626 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
7627 | return ret; | |
7628 | ||
7629 | } | |
7630 | ||
e59058c4 | 7631 | /** |
3621a710 | 7632 | * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands |
e59058c4 JS |
7633 | * @phba: Pointer to HBA context object.. |
7634 | * @pring: Pointer to sli ring. | |
7635 | * @piocb: Pointer to command iocb. | |
7636 | * @prspiocbq: Pointer to response iocb. | |
7637 | * @timeout: Timeout in number of seconds. | |
7638 | * | |
7639 | * This function issues the iocb to firmware and waits for the | |
7640 | * iocb to complete. If the iocb command is not | |
7641 | * completed within timeout seconds, it returns IOCB_TIMEDOUT. | |
7642 | * Caller should not free the iocb resources if this function | |
7643 | * returns IOCB_TIMEDOUT. | |
7644 | * The function waits for the iocb completion using an | |
7645 | * non-interruptible wait. | |
7646 | * This function will sleep while waiting for iocb completion. | |
7647 | * So, this function should not be called from any context which | |
7648 | * does not allow sleeping. Due to the same reason, this function | |
7649 | * cannot be called with interrupt disabled. | |
7650 | * This function assumes that the iocb completions occur while | |
7651 | * this function sleep. So, this function cannot be called from | |
7652 | * the thread which process iocb completion for this ring. | |
7653 | * This function clears the iocb_flag of the iocb object before | |
7654 | * issuing the iocb and the iocb completion handler sets this | |
7655 | * flag and wakes this thread when the iocb completes. | |
7656 | * The contents of the response iocb will be copied to prspiocbq | |
7657 | * by the completion handler when the command completes. | |
7658 | * This function returns IOCB_SUCCESS when success. | |
7659 | * This function is called with no lock held. | |
7660 | **/ | |
dea3101e | 7661 | int |
2e0fef85 | 7662 | lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba, |
da0436e9 | 7663 | uint32_t ring_number, |
2e0fef85 JS |
7664 | struct lpfc_iocbq *piocb, |
7665 | struct lpfc_iocbq *prspiocbq, | |
68876920 | 7666 | uint32_t timeout) |
dea3101e | 7667 | { |
7259f0d0 | 7668 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); |
68876920 JSEC |
7669 | long timeleft, timeout_req = 0; |
7670 | int retval = IOCB_SUCCESS; | |
875fbdfe | 7671 | uint32_t creg_val; |
2a9bf3d0 | 7672 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
dea3101e | 7673 | /* |
68876920 JSEC |
7674 | * If the caller has provided a response iocbq buffer, then context2 |
7675 | * is NULL or its an error. | |
dea3101e | 7676 | */ |
68876920 JSEC |
7677 | if (prspiocbq) { |
7678 | if (piocb->context2) | |
7679 | return IOCB_ERROR; | |
7680 | piocb->context2 = prspiocbq; | |
dea3101e JB |
7681 | } |
7682 | ||
68876920 JSEC |
7683 | piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait; |
7684 | piocb->context_un.wait_queue = &done_q; | |
7685 | piocb->iocb_flag &= ~LPFC_IO_WAKE; | |
dea3101e | 7686 | |
875fbdfe JSEC |
7687 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
7688 | creg_val = readl(phba->HCregaddr); | |
7689 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); | |
7690 | writel(creg_val, phba->HCregaddr); | |
7691 | readl(phba->HCregaddr); /* flush */ | |
7692 | } | |
7693 | ||
2a9bf3d0 JS |
7694 | retval = lpfc_sli_issue_iocb(phba, ring_number, piocb, |
7695 | SLI_IOCB_RET_IOCB); | |
68876920 JSEC |
7696 | if (retval == IOCB_SUCCESS) { |
7697 | timeout_req = timeout * HZ; | |
68876920 | 7698 | timeleft = wait_event_timeout(done_q, |
d11e31dd | 7699 | lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE), |
68876920 | 7700 | timeout_req); |
dea3101e | 7701 | |
7054a606 JS |
7702 | if (piocb->iocb_flag & LPFC_IO_WAKE) { |
7703 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 7704 | "0331 IOCB wake signaled\n"); |
7054a606 | 7705 | } else if (timeleft == 0) { |
68876920 | 7706 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 JS |
7707 | "0338 IOCB wait timeout error - no " |
7708 | "wake response Data x%x\n", timeout); | |
68876920 | 7709 | retval = IOCB_TIMEDOUT; |
7054a606 | 7710 | } else { |
68876920 | 7711 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 JS |
7712 | "0330 IOCB wake NOT set, " |
7713 | "Data x%x x%lx\n", | |
68876920 JSEC |
7714 | timeout, (timeleft / jiffies)); |
7715 | retval = IOCB_TIMEDOUT; | |
dea3101e | 7716 | } |
2a9bf3d0 JS |
7717 | } else if (retval == IOCB_BUSY) { |
7718 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
7719 | "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n", | |
7720 | phba->iocb_cnt, pring->txq_cnt, pring->txcmplq_cnt); | |
7721 | return retval; | |
68876920 JSEC |
7722 | } else { |
7723 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
d7c255b2 | 7724 | "0332 IOCB wait issue failed, Data x%x\n", |
e8b62011 | 7725 | retval); |
68876920 | 7726 | retval = IOCB_ERROR; |
dea3101e JB |
7727 | } |
7728 | ||
875fbdfe JSEC |
7729 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
7730 | creg_val = readl(phba->HCregaddr); | |
7731 | creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); | |
7732 | writel(creg_val, phba->HCregaddr); | |
7733 | readl(phba->HCregaddr); /* flush */ | |
7734 | } | |
7735 | ||
68876920 JSEC |
7736 | if (prspiocbq) |
7737 | piocb->context2 = NULL; | |
7738 | ||
7739 | piocb->context_un.wait_queue = NULL; | |
7740 | piocb->iocb_cmpl = NULL; | |
dea3101e JB |
7741 | return retval; |
7742 | } | |
68876920 | 7743 | |
e59058c4 | 7744 | /** |
3621a710 | 7745 | * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox |
e59058c4 JS |
7746 | * @phba: Pointer to HBA context object. |
7747 | * @pmboxq: Pointer to driver mailbox object. | |
7748 | * @timeout: Timeout in number of seconds. | |
7749 | * | |
7750 | * This function issues the mailbox to firmware and waits for the | |
7751 | * mailbox command to complete. If the mailbox command is not | |
7752 | * completed within timeout seconds, it returns MBX_TIMEOUT. | |
7753 | * The function waits for the mailbox completion using an | |
7754 | * interruptible wait. If the thread is woken up due to a | |
7755 | * signal, MBX_TIMEOUT error is returned to the caller. Caller | |
7756 | * should not free the mailbox resources, if this function returns | |
7757 | * MBX_TIMEOUT. | |
7758 | * This function will sleep while waiting for mailbox completion. | |
7759 | * So, this function should not be called from any context which | |
7760 | * does not allow sleeping. Due to the same reason, this function | |
7761 | * cannot be called with interrupt disabled. | |
7762 | * This function assumes that the mailbox completion occurs while | |
7763 | * this function sleep. So, this function cannot be called from | |
7764 | * the worker thread which processes mailbox completion. | |
7765 | * This function is called in the context of HBA management | |
7766 | * applications. | |
7767 | * This function returns MBX_SUCCESS when successful. | |
7768 | * This function is called with no lock held. | |
7769 | **/ | |
dea3101e | 7770 | int |
2e0fef85 | 7771 | lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq, |
dea3101e JB |
7772 | uint32_t timeout) |
7773 | { | |
7259f0d0 | 7774 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); |
dea3101e | 7775 | int retval; |
858c9f6c | 7776 | unsigned long flag; |
dea3101e JB |
7777 | |
7778 | /* The caller must leave context1 empty. */ | |
98c9ea5c | 7779 | if (pmboxq->context1) |
2e0fef85 | 7780 | return MBX_NOT_FINISHED; |
dea3101e | 7781 | |
495a714c | 7782 | pmboxq->mbox_flag &= ~LPFC_MBX_WAKE; |
dea3101e JB |
7783 | /* setup wake call as IOCB callback */ |
7784 | pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait; | |
7785 | /* setup context field to pass wait_queue pointer to wake function */ | |
7786 | pmboxq->context1 = &done_q; | |
7787 | ||
dea3101e JB |
7788 | /* now issue the command */ |
7789 | retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); | |
7790 | ||
7791 | if (retval == MBX_BUSY || retval == MBX_SUCCESS) { | |
7054a606 JS |
7792 | wait_event_interruptible_timeout(done_q, |
7793 | pmboxq->mbox_flag & LPFC_MBX_WAKE, | |
7794 | timeout * HZ); | |
7795 | ||
858c9f6c | 7796 | spin_lock_irqsave(&phba->hbalock, flag); |
dea3101e | 7797 | pmboxq->context1 = NULL; |
7054a606 JS |
7798 | /* |
7799 | * if LPFC_MBX_WAKE flag is set the mailbox is completed | |
7800 | * else do not free the resources. | |
7801 | */ | |
d7c47992 | 7802 | if (pmboxq->mbox_flag & LPFC_MBX_WAKE) { |
dea3101e | 7803 | retval = MBX_SUCCESS; |
d7c47992 JS |
7804 | lpfc_sli4_swap_str(phba, pmboxq); |
7805 | } else { | |
7054a606 | 7806 | retval = MBX_TIMEOUT; |
858c9f6c JS |
7807 | pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
7808 | } | |
7809 | spin_unlock_irqrestore(&phba->hbalock, flag); | |
dea3101e JB |
7810 | } |
7811 | ||
dea3101e JB |
7812 | return retval; |
7813 | } | |
7814 | ||
e59058c4 | 7815 | /** |
3772a991 | 7816 | * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system |
e59058c4 JS |
7817 | * @phba: Pointer to HBA context. |
7818 | * | |
3772a991 JS |
7819 | * This function is called to shutdown the driver's mailbox sub-system. |
7820 | * It first marks the mailbox sub-system is in a block state to prevent | |
7821 | * the asynchronous mailbox command from issued off the pending mailbox | |
7822 | * command queue. If the mailbox command sub-system shutdown is due to | |
7823 | * HBA error conditions such as EEH or ERATT, this routine shall invoke | |
7824 | * the mailbox sub-system flush routine to forcefully bring down the | |
7825 | * mailbox sub-system. Otherwise, if it is due to normal condition (such | |
7826 | * as with offline or HBA function reset), this routine will wait for the | |
7827 | * outstanding mailbox command to complete before invoking the mailbox | |
7828 | * sub-system flush routine to gracefully bring down mailbox sub-system. | |
e59058c4 | 7829 | **/ |
3772a991 JS |
7830 | void |
7831 | lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba) | |
b4c02652 | 7832 | { |
3772a991 JS |
7833 | struct lpfc_sli *psli = &phba->sli; |
7834 | uint8_t actcmd = MBX_HEARTBEAT; | |
7835 | unsigned long timeout; | |
b4c02652 | 7836 | |
3772a991 JS |
7837 | spin_lock_irq(&phba->hbalock); |
7838 | psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; | |
7839 | spin_unlock_irq(&phba->hbalock); | |
b4c02652 | 7840 | |
3772a991 | 7841 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { |
ed957684 | 7842 | spin_lock_irq(&phba->hbalock); |
3772a991 JS |
7843 | if (phba->sli.mbox_active) |
7844 | actcmd = phba->sli.mbox_active->u.mb.mbxCommand; | |
ed957684 | 7845 | spin_unlock_irq(&phba->hbalock); |
3772a991 JS |
7846 | /* Determine how long we might wait for the active mailbox |
7847 | * command to be gracefully completed by firmware. | |
7848 | */ | |
7849 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * | |
7850 | 1000) + jiffies; | |
7851 | while (phba->sli.mbox_active) { | |
7852 | /* Check active mailbox complete status every 2ms */ | |
7853 | msleep(2); | |
7854 | if (time_after(jiffies, timeout)) | |
7855 | /* Timeout, let the mailbox flush routine to | |
7856 | * forcefully release active mailbox command | |
7857 | */ | |
7858 | break; | |
7859 | } | |
7860 | } | |
7861 | lpfc_sli_mbox_sys_flush(phba); | |
7862 | } | |
ed957684 | 7863 | |
3772a991 JS |
7864 | /** |
7865 | * lpfc_sli_eratt_read - read sli-3 error attention events | |
7866 | * @phba: Pointer to HBA context. | |
7867 | * | |
7868 | * This function is called to read the SLI3 device error attention registers | |
7869 | * for possible error attention events. The caller must hold the hostlock | |
7870 | * with spin_lock_irq(). | |
7871 | * | |
7872 | * This fucntion returns 1 when there is Error Attention in the Host Attention | |
7873 | * Register and returns 0 otherwise. | |
7874 | **/ | |
7875 | static int | |
7876 | lpfc_sli_eratt_read(struct lpfc_hba *phba) | |
7877 | { | |
7878 | uint32_t ha_copy; | |
b4c02652 | 7879 | |
3772a991 JS |
7880 | /* Read chip Host Attention (HA) register */ |
7881 | ha_copy = readl(phba->HAregaddr); | |
7882 | if (ha_copy & HA_ERATT) { | |
7883 | /* Read host status register to retrieve error event */ | |
7884 | lpfc_sli_read_hs(phba); | |
b4c02652 | 7885 | |
3772a991 JS |
7886 | /* Check if there is a deferred error condition is active */ |
7887 | if ((HS_FFER1 & phba->work_hs) && | |
7888 | ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 | | |
dcf2a4e0 | 7889 | HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) { |
3772a991 | 7890 | phba->hba_flag |= DEFER_ERATT; |
3772a991 JS |
7891 | /* Clear all interrupt enable conditions */ |
7892 | writel(0, phba->HCregaddr); | |
7893 | readl(phba->HCregaddr); | |
7894 | } | |
7895 | ||
7896 | /* Set the driver HA work bitmap */ | |
3772a991 JS |
7897 | phba->work_ha |= HA_ERATT; |
7898 | /* Indicate polling handles this ERATT */ | |
7899 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
3772a991 JS |
7900 | return 1; |
7901 | } | |
7902 | return 0; | |
b4c02652 JS |
7903 | } |
7904 | ||
da0436e9 JS |
7905 | /** |
7906 | * lpfc_sli4_eratt_read - read sli-4 error attention events | |
7907 | * @phba: Pointer to HBA context. | |
7908 | * | |
7909 | * This function is called to read the SLI4 device error attention registers | |
7910 | * for possible error attention events. The caller must hold the hostlock | |
7911 | * with spin_lock_irq(). | |
7912 | * | |
7913 | * This fucntion returns 1 when there is Error Attention in the Host Attention | |
7914 | * Register and returns 0 otherwise. | |
7915 | **/ | |
7916 | static int | |
7917 | lpfc_sli4_eratt_read(struct lpfc_hba *phba) | |
7918 | { | |
7919 | uint32_t uerr_sta_hi, uerr_sta_lo; | |
da0436e9 JS |
7920 | |
7921 | /* For now, use the SLI4 device internal unrecoverable error | |
7922 | * registers for error attention. This can be changed later. | |
7923 | */ | |
a747c9ce JS |
7924 | uerr_sta_lo = readl(phba->sli4_hba.UERRLOregaddr); |
7925 | uerr_sta_hi = readl(phba->sli4_hba.UERRHIregaddr); | |
7926 | if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) || | |
7927 | (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) { | |
7928 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7929 | "1423 HBA Unrecoverable error: " | |
7930 | "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, " | |
7931 | "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n", | |
7932 | uerr_sta_lo, uerr_sta_hi, | |
7933 | phba->sli4_hba.ue_mask_lo, | |
7934 | phba->sli4_hba.ue_mask_hi); | |
7935 | phba->work_status[0] = uerr_sta_lo; | |
7936 | phba->work_status[1] = uerr_sta_hi; | |
7937 | /* Set the driver HA work bitmap */ | |
7938 | phba->work_ha |= HA_ERATT; | |
7939 | /* Indicate polling handles this ERATT */ | |
7940 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
7941 | return 1; | |
da0436e9 JS |
7942 | } |
7943 | return 0; | |
7944 | } | |
7945 | ||
e59058c4 | 7946 | /** |
3621a710 | 7947 | * lpfc_sli_check_eratt - check error attention events |
9399627f JS |
7948 | * @phba: Pointer to HBA context. |
7949 | * | |
3772a991 | 7950 | * This function is called from timer soft interrupt context to check HBA's |
9399627f JS |
7951 | * error attention register bit for error attention events. |
7952 | * | |
7953 | * This fucntion returns 1 when there is Error Attention in the Host Attention | |
7954 | * Register and returns 0 otherwise. | |
7955 | **/ | |
7956 | int | |
7957 | lpfc_sli_check_eratt(struct lpfc_hba *phba) | |
7958 | { | |
7959 | uint32_t ha_copy; | |
7960 | ||
7961 | /* If somebody is waiting to handle an eratt, don't process it | |
7962 | * here. The brdkill function will do this. | |
7963 | */ | |
7964 | if (phba->link_flag & LS_IGNORE_ERATT) | |
7965 | return 0; | |
7966 | ||
7967 | /* Check if interrupt handler handles this ERATT */ | |
7968 | spin_lock_irq(&phba->hbalock); | |
7969 | if (phba->hba_flag & HBA_ERATT_HANDLED) { | |
7970 | /* Interrupt handler has handled ERATT */ | |
7971 | spin_unlock_irq(&phba->hbalock); | |
7972 | return 0; | |
7973 | } | |
7974 | ||
a257bf90 JS |
7975 | /* |
7976 | * If there is deferred error attention, do not check for error | |
7977 | * attention | |
7978 | */ | |
7979 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
7980 | spin_unlock_irq(&phba->hbalock); | |
7981 | return 0; | |
7982 | } | |
7983 | ||
3772a991 JS |
7984 | /* If PCI channel is offline, don't process it */ |
7985 | if (unlikely(pci_channel_offline(phba->pcidev))) { | |
9399627f | 7986 | spin_unlock_irq(&phba->hbalock); |
3772a991 JS |
7987 | return 0; |
7988 | } | |
7989 | ||
7990 | switch (phba->sli_rev) { | |
7991 | case LPFC_SLI_REV2: | |
7992 | case LPFC_SLI_REV3: | |
7993 | /* Read chip Host Attention (HA) register */ | |
7994 | ha_copy = lpfc_sli_eratt_read(phba); | |
7995 | break; | |
da0436e9 JS |
7996 | case LPFC_SLI_REV4: |
7997 | /* Read devcie Uncoverable Error (UERR) registers */ | |
7998 | ha_copy = lpfc_sli4_eratt_read(phba); | |
7999 | break; | |
3772a991 JS |
8000 | default: |
8001 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8002 | "0299 Invalid SLI revision (%d)\n", | |
8003 | phba->sli_rev); | |
8004 | ha_copy = 0; | |
8005 | break; | |
9399627f JS |
8006 | } |
8007 | spin_unlock_irq(&phba->hbalock); | |
3772a991 JS |
8008 | |
8009 | return ha_copy; | |
8010 | } | |
8011 | ||
8012 | /** | |
8013 | * lpfc_intr_state_check - Check device state for interrupt handling | |
8014 | * @phba: Pointer to HBA context. | |
8015 | * | |
8016 | * This inline routine checks whether a device or its PCI slot is in a state | |
8017 | * that the interrupt should be handled. | |
8018 | * | |
8019 | * This function returns 0 if the device or the PCI slot is in a state that | |
8020 | * interrupt should be handled, otherwise -EIO. | |
8021 | */ | |
8022 | static inline int | |
8023 | lpfc_intr_state_check(struct lpfc_hba *phba) | |
8024 | { | |
8025 | /* If the pci channel is offline, ignore all the interrupts */ | |
8026 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
8027 | return -EIO; | |
8028 | ||
8029 | /* Update device level interrupt statistics */ | |
8030 | phba->sli.slistat.sli_intr++; | |
8031 | ||
8032 | /* Ignore all interrupts during initialization. */ | |
8033 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) | |
8034 | return -EIO; | |
8035 | ||
9399627f JS |
8036 | return 0; |
8037 | } | |
8038 | ||
8039 | /** | |
3772a991 | 8040 | * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device |
e59058c4 JS |
8041 | * @irq: Interrupt number. |
8042 | * @dev_id: The device context pointer. | |
8043 | * | |
9399627f | 8044 | * This function is directly called from the PCI layer as an interrupt |
3772a991 JS |
8045 | * service routine when device with SLI-3 interface spec is enabled with |
8046 | * MSI-X multi-message interrupt mode and there are slow-path events in | |
8047 | * the HBA. However, when the device is enabled with either MSI or Pin-IRQ | |
8048 | * interrupt mode, this function is called as part of the device-level | |
8049 | * interrupt handler. When the PCI slot is in error recovery or the HBA | |
8050 | * is undergoing initialization, the interrupt handler will not process | |
8051 | * the interrupt. The link attention and ELS ring attention events are | |
8052 | * handled by the worker thread. The interrupt handler signals the worker | |
8053 | * thread and returns for these events. This function is called without | |
8054 | * any lock held. It gets the hbalock to access and update SLI data | |
9399627f JS |
8055 | * structures. |
8056 | * | |
8057 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
8058 | * returns IRQ_NONE. | |
e59058c4 | 8059 | **/ |
dea3101e | 8060 | irqreturn_t |
3772a991 | 8061 | lpfc_sli_sp_intr_handler(int irq, void *dev_id) |
dea3101e | 8062 | { |
2e0fef85 | 8063 | struct lpfc_hba *phba; |
a747c9ce | 8064 | uint32_t ha_copy, hc_copy; |
dea3101e JB |
8065 | uint32_t work_ha_copy; |
8066 | unsigned long status; | |
5b75da2f | 8067 | unsigned long iflag; |
dea3101e JB |
8068 | uint32_t control; |
8069 | ||
92d7f7b0 | 8070 | MAILBOX_t *mbox, *pmbox; |
858c9f6c JS |
8071 | struct lpfc_vport *vport; |
8072 | struct lpfc_nodelist *ndlp; | |
8073 | struct lpfc_dmabuf *mp; | |
92d7f7b0 JS |
8074 | LPFC_MBOXQ_t *pmb; |
8075 | int rc; | |
8076 | ||
dea3101e JB |
8077 | /* |
8078 | * Get the driver's phba structure from the dev_id and | |
8079 | * assume the HBA is not interrupting. | |
8080 | */ | |
9399627f | 8081 | phba = (struct lpfc_hba *)dev_id; |
dea3101e JB |
8082 | |
8083 | if (unlikely(!phba)) | |
8084 | return IRQ_NONE; | |
8085 | ||
dea3101e | 8086 | /* |
9399627f JS |
8087 | * Stuff needs to be attented to when this function is invoked as an |
8088 | * individual interrupt handler in MSI-X multi-message interrupt mode | |
dea3101e | 8089 | */ |
9399627f | 8090 | if (phba->intr_type == MSIX) { |
3772a991 JS |
8091 | /* Check device state for handling interrupt */ |
8092 | if (lpfc_intr_state_check(phba)) | |
9399627f JS |
8093 | return IRQ_NONE; |
8094 | /* Need to read HA REG for slow-path events */ | |
5b75da2f | 8095 | spin_lock_irqsave(&phba->hbalock, iflag); |
34b02dcd | 8096 | ha_copy = readl(phba->HAregaddr); |
9399627f JS |
8097 | /* If somebody is waiting to handle an eratt don't process it |
8098 | * here. The brdkill function will do this. | |
8099 | */ | |
8100 | if (phba->link_flag & LS_IGNORE_ERATT) | |
8101 | ha_copy &= ~HA_ERATT; | |
8102 | /* Check the need for handling ERATT in interrupt handler */ | |
8103 | if (ha_copy & HA_ERATT) { | |
8104 | if (phba->hba_flag & HBA_ERATT_HANDLED) | |
8105 | /* ERATT polling has handled ERATT */ | |
8106 | ha_copy &= ~HA_ERATT; | |
8107 | else | |
8108 | /* Indicate interrupt handler handles ERATT */ | |
8109 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
8110 | } | |
a257bf90 JS |
8111 | |
8112 | /* | |
8113 | * If there is deferred error attention, do not check for any | |
8114 | * interrupt. | |
8115 | */ | |
8116 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
3772a991 | 8117 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
a257bf90 JS |
8118 | return IRQ_NONE; |
8119 | } | |
8120 | ||
9399627f | 8121 | /* Clear up only attention source related to slow-path */ |
a747c9ce JS |
8122 | hc_copy = readl(phba->HCregaddr); |
8123 | writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA | | |
8124 | HC_LAINT_ENA | HC_ERINT_ENA), | |
8125 | phba->HCregaddr); | |
9399627f JS |
8126 | writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)), |
8127 | phba->HAregaddr); | |
a747c9ce | 8128 | writel(hc_copy, phba->HCregaddr); |
9399627f | 8129 | readl(phba->HAregaddr); /* flush */ |
5b75da2f | 8130 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
9399627f JS |
8131 | } else |
8132 | ha_copy = phba->ha_copy; | |
dea3101e | 8133 | |
dea3101e JB |
8134 | work_ha_copy = ha_copy & phba->work_ha_mask; |
8135 | ||
9399627f | 8136 | if (work_ha_copy) { |
dea3101e JB |
8137 | if (work_ha_copy & HA_LATT) { |
8138 | if (phba->sli.sli_flag & LPFC_PROCESS_LA) { | |
8139 | /* | |
8140 | * Turn off Link Attention interrupts | |
8141 | * until CLEAR_LA done | |
8142 | */ | |
5b75da2f | 8143 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e JB |
8144 | phba->sli.sli_flag &= ~LPFC_PROCESS_LA; |
8145 | control = readl(phba->HCregaddr); | |
8146 | control &= ~HC_LAINT_ENA; | |
8147 | writel(control, phba->HCregaddr); | |
8148 | readl(phba->HCregaddr); /* flush */ | |
5b75da2f | 8149 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e JB |
8150 | } |
8151 | else | |
8152 | work_ha_copy &= ~HA_LATT; | |
8153 | } | |
8154 | ||
9399627f | 8155 | if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) { |
858c9f6c JS |
8156 | /* |
8157 | * Turn off Slow Rings interrupts, LPFC_ELS_RING is | |
8158 | * the only slow ring. | |
8159 | */ | |
8160 | status = (work_ha_copy & | |
8161 | (HA_RXMASK << (4*LPFC_ELS_RING))); | |
8162 | status >>= (4*LPFC_ELS_RING); | |
8163 | if (status & HA_RXMASK) { | |
5b75da2f | 8164 | spin_lock_irqsave(&phba->hbalock, iflag); |
858c9f6c | 8165 | control = readl(phba->HCregaddr); |
a58cbd52 JS |
8166 | |
8167 | lpfc_debugfs_slow_ring_trc(phba, | |
8168 | "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x", | |
8169 | control, status, | |
8170 | (uint32_t)phba->sli.slistat.sli_intr); | |
8171 | ||
858c9f6c | 8172 | if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) { |
a58cbd52 JS |
8173 | lpfc_debugfs_slow_ring_trc(phba, |
8174 | "ISR Disable ring:" | |
8175 | "pwork:x%x hawork:x%x wait:x%x", | |
8176 | phba->work_ha, work_ha_copy, | |
8177 | (uint32_t)((unsigned long) | |
5e9d9b82 | 8178 | &phba->work_waitq)); |
a58cbd52 | 8179 | |
858c9f6c JS |
8180 | control &= |
8181 | ~(HC_R0INT_ENA << LPFC_ELS_RING); | |
dea3101e JB |
8182 | writel(control, phba->HCregaddr); |
8183 | readl(phba->HCregaddr); /* flush */ | |
dea3101e | 8184 | } |
a58cbd52 JS |
8185 | else { |
8186 | lpfc_debugfs_slow_ring_trc(phba, | |
8187 | "ISR slow ring: pwork:" | |
8188 | "x%x hawork:x%x wait:x%x", | |
8189 | phba->work_ha, work_ha_copy, | |
8190 | (uint32_t)((unsigned long) | |
5e9d9b82 | 8191 | &phba->work_waitq)); |
a58cbd52 | 8192 | } |
5b75da2f | 8193 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e JB |
8194 | } |
8195 | } | |
5b75da2f | 8196 | spin_lock_irqsave(&phba->hbalock, iflag); |
a257bf90 | 8197 | if (work_ha_copy & HA_ERATT) { |
9399627f | 8198 | lpfc_sli_read_hs(phba); |
a257bf90 JS |
8199 | /* |
8200 | * Check if there is a deferred error condition | |
8201 | * is active | |
8202 | */ | |
8203 | if ((HS_FFER1 & phba->work_hs) && | |
8204 | ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 | | |
dcf2a4e0 JS |
8205 | HS_FFER6 | HS_FFER7 | HS_FFER8) & |
8206 | phba->work_hs)) { | |
a257bf90 JS |
8207 | phba->hba_flag |= DEFER_ERATT; |
8208 | /* Clear all interrupt enable conditions */ | |
8209 | writel(0, phba->HCregaddr); | |
8210 | readl(phba->HCregaddr); | |
8211 | } | |
8212 | } | |
8213 | ||
9399627f | 8214 | if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) { |
92d7f7b0 | 8215 | pmb = phba->sli.mbox_active; |
04c68496 | 8216 | pmbox = &pmb->u.mb; |
34b02dcd | 8217 | mbox = phba->mbox; |
858c9f6c | 8218 | vport = pmb->vport; |
92d7f7b0 JS |
8219 | |
8220 | /* First check out the status word */ | |
8221 | lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t)); | |
8222 | if (pmbox->mbxOwner != OWN_HOST) { | |
5b75da2f | 8223 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
92d7f7b0 JS |
8224 | /* |
8225 | * Stray Mailbox Interrupt, mbxCommand <cmd> | |
8226 | * mbxStatus <status> | |
8227 | */ | |
09372820 | 8228 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | |
92d7f7b0 | 8229 | LOG_SLI, |
e8b62011 | 8230 | "(%d):0304 Stray Mailbox " |
92d7f7b0 JS |
8231 | "Interrupt mbxCommand x%x " |
8232 | "mbxStatus x%x\n", | |
e8b62011 | 8233 | (vport ? vport->vpi : 0), |
92d7f7b0 JS |
8234 | pmbox->mbxCommand, |
8235 | pmbox->mbxStatus); | |
09372820 JS |
8236 | /* clear mailbox attention bit */ |
8237 | work_ha_copy &= ~HA_MBATT; | |
8238 | } else { | |
97eab634 | 8239 | phba->sli.mbox_active = NULL; |
5b75da2f | 8240 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
09372820 JS |
8241 | phba->last_completion_time = jiffies; |
8242 | del_timer(&phba->sli.mbox_tmo); | |
09372820 JS |
8243 | if (pmb->mbox_cmpl) { |
8244 | lpfc_sli_pcimem_bcopy(mbox, pmbox, | |
8245 | MAILBOX_CMD_SIZE); | |
7a470277 JS |
8246 | if (pmb->out_ext_byte_len && |
8247 | pmb->context2) | |
8248 | lpfc_sli_pcimem_bcopy( | |
8249 | phba->mbox_ext, | |
8250 | pmb->context2, | |
8251 | pmb->out_ext_byte_len); | |
09372820 JS |
8252 | } |
8253 | if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) { | |
8254 | pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG; | |
8255 | ||
8256 | lpfc_debugfs_disc_trc(vport, | |
8257 | LPFC_DISC_TRC_MBOX_VPORT, | |
8258 | "MBOX dflt rpi: : " | |
8259 | "status:x%x rpi:x%x", | |
8260 | (uint32_t)pmbox->mbxStatus, | |
8261 | pmbox->un.varWords[0], 0); | |
8262 | ||
8263 | if (!pmbox->mbxStatus) { | |
8264 | mp = (struct lpfc_dmabuf *) | |
8265 | (pmb->context1); | |
8266 | ndlp = (struct lpfc_nodelist *) | |
8267 | pmb->context2; | |
8268 | ||
8269 | /* Reg_LOGIN of dflt RPI was | |
8270 | * successful. new lets get | |
8271 | * rid of the RPI using the | |
8272 | * same mbox buffer. | |
8273 | */ | |
8274 | lpfc_unreg_login(phba, | |
8275 | vport->vpi, | |
8276 | pmbox->un.varWords[0], | |
8277 | pmb); | |
8278 | pmb->mbox_cmpl = | |
8279 | lpfc_mbx_cmpl_dflt_rpi; | |
8280 | pmb->context1 = mp; | |
8281 | pmb->context2 = ndlp; | |
8282 | pmb->vport = vport; | |
58da1ffb JS |
8283 | rc = lpfc_sli_issue_mbox(phba, |
8284 | pmb, | |
8285 | MBX_NOWAIT); | |
8286 | if (rc != MBX_BUSY) | |
8287 | lpfc_printf_log(phba, | |
8288 | KERN_ERR, | |
8289 | LOG_MBOX | LOG_SLI, | |
d7c255b2 | 8290 | "0350 rc should have" |
6a9c52cf | 8291 | "been MBX_BUSY\n"); |
3772a991 JS |
8292 | if (rc != MBX_NOT_FINISHED) |
8293 | goto send_current_mbox; | |
09372820 | 8294 | } |
858c9f6c | 8295 | } |
5b75da2f JS |
8296 | spin_lock_irqsave( |
8297 | &phba->pport->work_port_lock, | |
8298 | iflag); | |
09372820 JS |
8299 | phba->pport->work_port_events &= |
8300 | ~WORKER_MBOX_TMO; | |
5b75da2f JS |
8301 | spin_unlock_irqrestore( |
8302 | &phba->pport->work_port_lock, | |
8303 | iflag); | |
09372820 | 8304 | lpfc_mbox_cmpl_put(phba, pmb); |
858c9f6c | 8305 | } |
97eab634 | 8306 | } else |
5b75da2f | 8307 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
9399627f | 8308 | |
92d7f7b0 JS |
8309 | if ((work_ha_copy & HA_MBATT) && |
8310 | (phba->sli.mbox_active == NULL)) { | |
858c9f6c | 8311 | send_current_mbox: |
92d7f7b0 | 8312 | /* Process next mailbox command if there is one */ |
58da1ffb JS |
8313 | do { |
8314 | rc = lpfc_sli_issue_mbox(phba, NULL, | |
8315 | MBX_NOWAIT); | |
8316 | } while (rc == MBX_NOT_FINISHED); | |
8317 | if (rc != MBX_SUCCESS) | |
8318 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | | |
8319 | LOG_SLI, "0349 rc should be " | |
6a9c52cf | 8320 | "MBX_SUCCESS\n"); |
92d7f7b0 JS |
8321 | } |
8322 | ||
5b75da2f | 8323 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 8324 | phba->work_ha |= work_ha_copy; |
5b75da2f | 8325 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
5e9d9b82 | 8326 | lpfc_worker_wake_up(phba); |
dea3101e | 8327 | } |
9399627f | 8328 | return IRQ_HANDLED; |
dea3101e | 8329 | |
3772a991 | 8330 | } /* lpfc_sli_sp_intr_handler */ |
9399627f JS |
8331 | |
8332 | /** | |
3772a991 | 8333 | * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device. |
9399627f JS |
8334 | * @irq: Interrupt number. |
8335 | * @dev_id: The device context pointer. | |
8336 | * | |
8337 | * This function is directly called from the PCI layer as an interrupt | |
3772a991 JS |
8338 | * service routine when device with SLI-3 interface spec is enabled with |
8339 | * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB | |
8340 | * ring event in the HBA. However, when the device is enabled with either | |
8341 | * MSI or Pin-IRQ interrupt mode, this function is called as part of the | |
8342 | * device-level interrupt handler. When the PCI slot is in error recovery | |
8343 | * or the HBA is undergoing initialization, the interrupt handler will not | |
8344 | * process the interrupt. The SCSI FCP fast-path ring event are handled in | |
8345 | * the intrrupt context. This function is called without any lock held. | |
8346 | * It gets the hbalock to access and update SLI data structures. | |
9399627f JS |
8347 | * |
8348 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
8349 | * returns IRQ_NONE. | |
8350 | **/ | |
8351 | irqreturn_t | |
3772a991 | 8352 | lpfc_sli_fp_intr_handler(int irq, void *dev_id) |
9399627f JS |
8353 | { |
8354 | struct lpfc_hba *phba; | |
8355 | uint32_t ha_copy; | |
8356 | unsigned long status; | |
5b75da2f | 8357 | unsigned long iflag; |
9399627f JS |
8358 | |
8359 | /* Get the driver's phba structure from the dev_id and | |
8360 | * assume the HBA is not interrupting. | |
8361 | */ | |
8362 | phba = (struct lpfc_hba *) dev_id; | |
8363 | ||
8364 | if (unlikely(!phba)) | |
8365 | return IRQ_NONE; | |
8366 | ||
8367 | /* | |
8368 | * Stuff needs to be attented to when this function is invoked as an | |
8369 | * individual interrupt handler in MSI-X multi-message interrupt mode | |
8370 | */ | |
8371 | if (phba->intr_type == MSIX) { | |
3772a991 JS |
8372 | /* Check device state for handling interrupt */ |
8373 | if (lpfc_intr_state_check(phba)) | |
9399627f JS |
8374 | return IRQ_NONE; |
8375 | /* Need to read HA REG for FCP ring and other ring events */ | |
8376 | ha_copy = readl(phba->HAregaddr); | |
8377 | /* Clear up only attention source related to fast-path */ | |
5b75da2f | 8378 | spin_lock_irqsave(&phba->hbalock, iflag); |
a257bf90 JS |
8379 | /* |
8380 | * If there is deferred error attention, do not check for | |
8381 | * any interrupt. | |
8382 | */ | |
8383 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
3772a991 | 8384 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
a257bf90 JS |
8385 | return IRQ_NONE; |
8386 | } | |
9399627f JS |
8387 | writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)), |
8388 | phba->HAregaddr); | |
8389 | readl(phba->HAregaddr); /* flush */ | |
5b75da2f | 8390 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
9399627f JS |
8391 | } else |
8392 | ha_copy = phba->ha_copy; | |
dea3101e JB |
8393 | |
8394 | /* | |
9399627f | 8395 | * Process all events on FCP ring. Take the optimized path for FCP IO. |
dea3101e | 8396 | */ |
9399627f JS |
8397 | ha_copy &= ~(phba->work_ha_mask); |
8398 | ||
8399 | status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
dea3101e | 8400 | status >>= (4*LPFC_FCP_RING); |
858c9f6c | 8401 | if (status & HA_RXMASK) |
dea3101e JB |
8402 | lpfc_sli_handle_fast_ring_event(phba, |
8403 | &phba->sli.ring[LPFC_FCP_RING], | |
8404 | status); | |
a4bc3379 JS |
8405 | |
8406 | if (phba->cfg_multi_ring_support == 2) { | |
8407 | /* | |
9399627f JS |
8408 | * Process all events on extra ring. Take the optimized path |
8409 | * for extra ring IO. | |
a4bc3379 | 8410 | */ |
9399627f | 8411 | status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); |
a4bc3379 | 8412 | status >>= (4*LPFC_EXTRA_RING); |
858c9f6c | 8413 | if (status & HA_RXMASK) { |
a4bc3379 JS |
8414 | lpfc_sli_handle_fast_ring_event(phba, |
8415 | &phba->sli.ring[LPFC_EXTRA_RING], | |
8416 | status); | |
8417 | } | |
8418 | } | |
dea3101e | 8419 | return IRQ_HANDLED; |
3772a991 | 8420 | } /* lpfc_sli_fp_intr_handler */ |
9399627f JS |
8421 | |
8422 | /** | |
3772a991 | 8423 | * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device |
9399627f JS |
8424 | * @irq: Interrupt number. |
8425 | * @dev_id: The device context pointer. | |
8426 | * | |
3772a991 JS |
8427 | * This function is the HBA device-level interrupt handler to device with |
8428 | * SLI-3 interface spec, called from the PCI layer when either MSI or | |
8429 | * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which | |
8430 | * requires driver attention. This function invokes the slow-path interrupt | |
8431 | * attention handling function and fast-path interrupt attention handling | |
8432 | * function in turn to process the relevant HBA attention events. This | |
8433 | * function is called without any lock held. It gets the hbalock to access | |
8434 | * and update SLI data structures. | |
9399627f JS |
8435 | * |
8436 | * This function returns IRQ_HANDLED when interrupt is handled, else it | |
8437 | * returns IRQ_NONE. | |
8438 | **/ | |
8439 | irqreturn_t | |
3772a991 | 8440 | lpfc_sli_intr_handler(int irq, void *dev_id) |
9399627f JS |
8441 | { |
8442 | struct lpfc_hba *phba; | |
8443 | irqreturn_t sp_irq_rc, fp_irq_rc; | |
8444 | unsigned long status1, status2; | |
a747c9ce | 8445 | uint32_t hc_copy; |
9399627f JS |
8446 | |
8447 | /* | |
8448 | * Get the driver's phba structure from the dev_id and | |
8449 | * assume the HBA is not interrupting. | |
8450 | */ | |
8451 | phba = (struct lpfc_hba *) dev_id; | |
8452 | ||
8453 | if (unlikely(!phba)) | |
8454 | return IRQ_NONE; | |
8455 | ||
3772a991 JS |
8456 | /* Check device state for handling interrupt */ |
8457 | if (lpfc_intr_state_check(phba)) | |
9399627f JS |
8458 | return IRQ_NONE; |
8459 | ||
8460 | spin_lock(&phba->hbalock); | |
8461 | phba->ha_copy = readl(phba->HAregaddr); | |
8462 | if (unlikely(!phba->ha_copy)) { | |
8463 | spin_unlock(&phba->hbalock); | |
8464 | return IRQ_NONE; | |
8465 | } else if (phba->ha_copy & HA_ERATT) { | |
8466 | if (phba->hba_flag & HBA_ERATT_HANDLED) | |
8467 | /* ERATT polling has handled ERATT */ | |
8468 | phba->ha_copy &= ~HA_ERATT; | |
8469 | else | |
8470 | /* Indicate interrupt handler handles ERATT */ | |
8471 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
8472 | } | |
8473 | ||
a257bf90 JS |
8474 | /* |
8475 | * If there is deferred error attention, do not check for any interrupt. | |
8476 | */ | |
8477 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
ec21b3b0 | 8478 | spin_unlock(&phba->hbalock); |
a257bf90 JS |
8479 | return IRQ_NONE; |
8480 | } | |
8481 | ||
9399627f | 8482 | /* Clear attention sources except link and error attentions */ |
a747c9ce JS |
8483 | hc_copy = readl(phba->HCregaddr); |
8484 | writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA | |
8485 | | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA), | |
8486 | phba->HCregaddr); | |
9399627f | 8487 | writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr); |
a747c9ce | 8488 | writel(hc_copy, phba->HCregaddr); |
9399627f JS |
8489 | readl(phba->HAregaddr); /* flush */ |
8490 | spin_unlock(&phba->hbalock); | |
8491 | ||
8492 | /* | |
8493 | * Invokes slow-path host attention interrupt handling as appropriate. | |
8494 | */ | |
8495 | ||
8496 | /* status of events with mailbox and link attention */ | |
8497 | status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT); | |
8498 | ||
8499 | /* status of events with ELS ring */ | |
8500 | status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); | |
8501 | status2 >>= (4*LPFC_ELS_RING); | |
8502 | ||
8503 | if (status1 || (status2 & HA_RXMASK)) | |
3772a991 | 8504 | sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id); |
9399627f JS |
8505 | else |
8506 | sp_irq_rc = IRQ_NONE; | |
8507 | ||
8508 | /* | |
8509 | * Invoke fast-path host attention interrupt handling as appropriate. | |
8510 | */ | |
8511 | ||
8512 | /* status of events with FCP ring */ | |
8513 | status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
8514 | status1 >>= (4*LPFC_FCP_RING); | |
8515 | ||
8516 | /* status of events with extra ring */ | |
8517 | if (phba->cfg_multi_ring_support == 2) { | |
8518 | status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); | |
8519 | status2 >>= (4*LPFC_EXTRA_RING); | |
8520 | } else | |
8521 | status2 = 0; | |
8522 | ||
8523 | if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK)) | |
3772a991 | 8524 | fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id); |
9399627f JS |
8525 | else |
8526 | fp_irq_rc = IRQ_NONE; | |
dea3101e | 8527 | |
9399627f JS |
8528 | /* Return device-level interrupt handling status */ |
8529 | return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc; | |
3772a991 | 8530 | } /* lpfc_sli_intr_handler */ |
4f774513 JS |
8531 | |
8532 | /** | |
8533 | * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event | |
8534 | * @phba: pointer to lpfc hba data structure. | |
8535 | * | |
8536 | * This routine is invoked by the worker thread to process all the pending | |
8537 | * SLI4 FCP abort XRI events. | |
8538 | **/ | |
8539 | void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba) | |
8540 | { | |
8541 | struct lpfc_cq_event *cq_event; | |
8542 | ||
8543 | /* First, declare the fcp xri abort event has been handled */ | |
8544 | spin_lock_irq(&phba->hbalock); | |
8545 | phba->hba_flag &= ~FCP_XRI_ABORT_EVENT; | |
8546 | spin_unlock_irq(&phba->hbalock); | |
8547 | /* Now, handle all the fcp xri abort events */ | |
8548 | while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) { | |
8549 | /* Get the first event from the head of the event queue */ | |
8550 | spin_lock_irq(&phba->hbalock); | |
8551 | list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, | |
8552 | cq_event, struct lpfc_cq_event, list); | |
8553 | spin_unlock_irq(&phba->hbalock); | |
8554 | /* Notify aborted XRI for FCP work queue */ | |
8555 | lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri); | |
8556 | /* Free the event processed back to the free pool */ | |
8557 | lpfc_sli4_cq_event_release(phba, cq_event); | |
8558 | } | |
8559 | } | |
8560 | ||
8561 | /** | |
8562 | * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event | |
8563 | * @phba: pointer to lpfc hba data structure. | |
8564 | * | |
8565 | * This routine is invoked by the worker thread to process all the pending | |
8566 | * SLI4 els abort xri events. | |
8567 | **/ | |
8568 | void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba) | |
8569 | { | |
8570 | struct lpfc_cq_event *cq_event; | |
8571 | ||
8572 | /* First, declare the els xri abort event has been handled */ | |
8573 | spin_lock_irq(&phba->hbalock); | |
8574 | phba->hba_flag &= ~ELS_XRI_ABORT_EVENT; | |
8575 | spin_unlock_irq(&phba->hbalock); | |
8576 | /* Now, handle all the els xri abort events */ | |
8577 | while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) { | |
8578 | /* Get the first event from the head of the event queue */ | |
8579 | spin_lock_irq(&phba->hbalock); | |
8580 | list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue, | |
8581 | cq_event, struct lpfc_cq_event, list); | |
8582 | spin_unlock_irq(&phba->hbalock); | |
8583 | /* Notify aborted XRI for ELS work queue */ | |
8584 | lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri); | |
8585 | /* Free the event processed back to the free pool */ | |
8586 | lpfc_sli4_cq_event_release(phba, cq_event); | |
8587 | } | |
8588 | } | |
8589 | ||
341af102 JS |
8590 | /** |
8591 | * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn | |
8592 | * @phba: pointer to lpfc hba data structure | |
8593 | * @pIocbIn: pointer to the rspiocbq | |
8594 | * @pIocbOut: pointer to the cmdiocbq | |
8595 | * @wcqe: pointer to the complete wcqe | |
8596 | * | |
8597 | * This routine transfers the fields of a command iocbq to a response iocbq | |
8598 | * by copying all the IOCB fields from command iocbq and transferring the | |
8599 | * completion status information from the complete wcqe. | |
8600 | **/ | |
4f774513 | 8601 | static void |
341af102 JS |
8602 | lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba, |
8603 | struct lpfc_iocbq *pIocbIn, | |
4f774513 JS |
8604 | struct lpfc_iocbq *pIocbOut, |
8605 | struct lpfc_wcqe_complete *wcqe) | |
8606 | { | |
341af102 | 8607 | unsigned long iflags; |
4f774513 JS |
8608 | size_t offset = offsetof(struct lpfc_iocbq, iocb); |
8609 | ||
8610 | memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset, | |
8611 | sizeof(struct lpfc_iocbq) - offset); | |
4f774513 JS |
8612 | /* Map WCQE parameters into irspiocb parameters */ |
8613 | pIocbIn->iocb.ulpStatus = bf_get(lpfc_wcqe_c_status, wcqe); | |
8614 | if (pIocbOut->iocb_flag & LPFC_IO_FCP) | |
8615 | if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR) | |
8616 | pIocbIn->iocb.un.fcpi.fcpi_parm = | |
8617 | pIocbOut->iocb.un.fcpi.fcpi_parm - | |
8618 | wcqe->total_data_placed; | |
8619 | else | |
8620 | pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter; | |
695a814e | 8621 | else { |
4f774513 | 8622 | pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter; |
695a814e JS |
8623 | pIocbIn->iocb.un.genreq64.bdl.bdeSize = wcqe->total_data_placed; |
8624 | } | |
341af102 JS |
8625 | |
8626 | /* Pick up HBA exchange busy condition */ | |
8627 | if (bf_get(lpfc_wcqe_c_xb, wcqe)) { | |
8628 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8629 | pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY; | |
8630 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8631 | } | |
4f774513 JS |
8632 | } |
8633 | ||
45ed1190 JS |
8634 | /** |
8635 | * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe | |
8636 | * @phba: Pointer to HBA context object. | |
8637 | * @wcqe: Pointer to work-queue completion queue entry. | |
8638 | * | |
8639 | * This routine handles an ELS work-queue completion event and construct | |
8640 | * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common | |
8641 | * discovery engine to handle. | |
8642 | * | |
8643 | * Return: Pointer to the receive IOCBQ, NULL otherwise. | |
8644 | **/ | |
8645 | static struct lpfc_iocbq * | |
8646 | lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba, | |
8647 | struct lpfc_iocbq *irspiocbq) | |
8648 | { | |
8649 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
8650 | struct lpfc_iocbq *cmdiocbq; | |
8651 | struct lpfc_wcqe_complete *wcqe; | |
8652 | unsigned long iflags; | |
8653 | ||
8654 | wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl; | |
8655 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8656 | pring->stats.iocb_event++; | |
8657 | /* Look up the ELS command IOCB and create pseudo response IOCB */ | |
8658 | cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring, | |
8659 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
8660 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8661 | ||
8662 | if (unlikely(!cmdiocbq)) { | |
8663 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
8664 | "0386 ELS complete with no corresponding " | |
8665 | "cmdiocb: iotag (%d)\n", | |
8666 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
8667 | lpfc_sli_release_iocbq(phba, irspiocbq); | |
8668 | return NULL; | |
8669 | } | |
8670 | ||
8671 | /* Fake the irspiocbq and copy necessary response information */ | |
341af102 | 8672 | lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe); |
45ed1190 JS |
8673 | |
8674 | return irspiocbq; | |
8675 | } | |
8676 | ||
04c68496 JS |
8677 | /** |
8678 | * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event | |
8679 | * @phba: Pointer to HBA context object. | |
8680 | * @cqe: Pointer to mailbox completion queue entry. | |
8681 | * | |
8682 | * This routine process a mailbox completion queue entry with asynchrous | |
8683 | * event. | |
8684 | * | |
8685 | * Return: true if work posted to worker thread, otherwise false. | |
8686 | **/ | |
8687 | static bool | |
8688 | lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe) | |
8689 | { | |
8690 | struct lpfc_cq_event *cq_event; | |
8691 | unsigned long iflags; | |
8692 | ||
8693 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
8694 | "0392 Async Event: word0:x%x, word1:x%x, " | |
8695 | "word2:x%x, word3:x%x\n", mcqe->word0, | |
8696 | mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer); | |
8697 | ||
8698 | /* Allocate a new internal CQ_EVENT entry */ | |
8699 | cq_event = lpfc_sli4_cq_event_alloc(phba); | |
8700 | if (!cq_event) { | |
8701 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8702 | "0394 Failed to allocate CQ_EVENT entry\n"); | |
8703 | return false; | |
8704 | } | |
8705 | ||
8706 | /* Move the CQE into an asynchronous event entry */ | |
8707 | memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe)); | |
8708 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8709 | list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue); | |
8710 | /* Set the async event flag */ | |
8711 | phba->hba_flag |= ASYNC_EVENT; | |
8712 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8713 | ||
8714 | return true; | |
8715 | } | |
8716 | ||
8717 | /** | |
8718 | * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event | |
8719 | * @phba: Pointer to HBA context object. | |
8720 | * @cqe: Pointer to mailbox completion queue entry. | |
8721 | * | |
8722 | * This routine process a mailbox completion queue entry with mailbox | |
8723 | * completion event. | |
8724 | * | |
8725 | * Return: true if work posted to worker thread, otherwise false. | |
8726 | **/ | |
8727 | static bool | |
8728 | lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe) | |
8729 | { | |
8730 | uint32_t mcqe_status; | |
8731 | MAILBOX_t *mbox, *pmbox; | |
8732 | struct lpfc_mqe *mqe; | |
8733 | struct lpfc_vport *vport; | |
8734 | struct lpfc_nodelist *ndlp; | |
8735 | struct lpfc_dmabuf *mp; | |
8736 | unsigned long iflags; | |
8737 | LPFC_MBOXQ_t *pmb; | |
8738 | bool workposted = false; | |
8739 | int rc; | |
8740 | ||
8741 | /* If not a mailbox complete MCQE, out by checking mailbox consume */ | |
8742 | if (!bf_get(lpfc_trailer_completed, mcqe)) | |
8743 | goto out_no_mqe_complete; | |
8744 | ||
8745 | /* Get the reference to the active mbox command */ | |
8746 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8747 | pmb = phba->sli.mbox_active; | |
8748 | if (unlikely(!pmb)) { | |
8749 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
8750 | "1832 No pending MBOX command to handle\n"); | |
8751 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8752 | goto out_no_mqe_complete; | |
8753 | } | |
8754 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8755 | mqe = &pmb->u.mqe; | |
8756 | pmbox = (MAILBOX_t *)&pmb->u.mqe; | |
8757 | mbox = phba->mbox; | |
8758 | vport = pmb->vport; | |
8759 | ||
8760 | /* Reset heartbeat timer */ | |
8761 | phba->last_completion_time = jiffies; | |
8762 | del_timer(&phba->sli.mbox_tmo); | |
8763 | ||
8764 | /* Move mbox data to caller's mailbox region, do endian swapping */ | |
8765 | if (pmb->mbox_cmpl && mbox) | |
8766 | lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe)); | |
8767 | /* Set the mailbox status with SLI4 range 0x4000 */ | |
8768 | mcqe_status = bf_get(lpfc_mcqe_status, mcqe); | |
8769 | if (mcqe_status != MB_CQE_STATUS_SUCCESS) | |
8770 | bf_set(lpfc_mqe_status, mqe, | |
8771 | (LPFC_MBX_ERROR_RANGE | mcqe_status)); | |
8772 | ||
8773 | if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) { | |
8774 | pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG; | |
8775 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT, | |
8776 | "MBOX dflt rpi: status:x%x rpi:x%x", | |
8777 | mcqe_status, | |
8778 | pmbox->un.varWords[0], 0); | |
8779 | if (mcqe_status == MB_CQE_STATUS_SUCCESS) { | |
8780 | mp = (struct lpfc_dmabuf *)(pmb->context1); | |
8781 | ndlp = (struct lpfc_nodelist *)pmb->context2; | |
8782 | /* Reg_LOGIN of dflt RPI was successful. Now lets get | |
8783 | * RID of the PPI using the same mbox buffer. | |
8784 | */ | |
8785 | lpfc_unreg_login(phba, vport->vpi, | |
8786 | pmbox->un.varWords[0], pmb); | |
8787 | pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; | |
8788 | pmb->context1 = mp; | |
8789 | pmb->context2 = ndlp; | |
8790 | pmb->vport = vport; | |
8791 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
8792 | if (rc != MBX_BUSY) | |
8793 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | | |
8794 | LOG_SLI, "0385 rc should " | |
8795 | "have been MBX_BUSY\n"); | |
8796 | if (rc != MBX_NOT_FINISHED) | |
8797 | goto send_current_mbox; | |
8798 | } | |
8799 | } | |
8800 | spin_lock_irqsave(&phba->pport->work_port_lock, iflags); | |
8801 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; | |
8802 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); | |
8803 | ||
8804 | /* There is mailbox completion work to do */ | |
8805 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8806 | __lpfc_mbox_cmpl_put(phba, pmb); | |
8807 | phba->work_ha |= HA_MBATT; | |
8808 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8809 | workposted = true; | |
8810 | ||
8811 | send_current_mbox: | |
8812 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8813 | /* Release the mailbox command posting token */ | |
8814 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
8815 | /* Setting active mailbox pointer need to be in sync to flag clear */ | |
8816 | phba->sli.mbox_active = NULL; | |
8817 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8818 | /* Wake up worker thread to post the next pending mailbox command */ | |
8819 | lpfc_worker_wake_up(phba); | |
8820 | out_no_mqe_complete: | |
8821 | if (bf_get(lpfc_trailer_consumed, mcqe)) | |
8822 | lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq); | |
8823 | return workposted; | |
8824 | } | |
8825 | ||
8826 | /** | |
8827 | * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry | |
8828 | * @phba: Pointer to HBA context object. | |
8829 | * @cqe: Pointer to mailbox completion queue entry. | |
8830 | * | |
8831 | * This routine process a mailbox completion queue entry, it invokes the | |
8832 | * proper mailbox complete handling or asynchrous event handling routine | |
8833 | * according to the MCQE's async bit. | |
8834 | * | |
8835 | * Return: true if work posted to worker thread, otherwise false. | |
8836 | **/ | |
8837 | static bool | |
8838 | lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe) | |
8839 | { | |
8840 | struct lpfc_mcqe mcqe; | |
8841 | bool workposted; | |
8842 | ||
8843 | /* Copy the mailbox MCQE and convert endian order as needed */ | |
8844 | lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe)); | |
8845 | ||
8846 | /* Invoke the proper event handling routine */ | |
8847 | if (!bf_get(lpfc_trailer_async, &mcqe)) | |
8848 | workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe); | |
8849 | else | |
8850 | workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe); | |
8851 | return workposted; | |
8852 | } | |
8853 | ||
4f774513 JS |
8854 | /** |
8855 | * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event | |
8856 | * @phba: Pointer to HBA context object. | |
8857 | * @wcqe: Pointer to work-queue completion queue entry. | |
8858 | * | |
8859 | * This routine handles an ELS work-queue completion event. | |
8860 | * | |
8861 | * Return: true if work posted to worker thread, otherwise false. | |
8862 | **/ | |
8863 | static bool | |
8864 | lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, | |
8865 | struct lpfc_wcqe_complete *wcqe) | |
8866 | { | |
4f774513 JS |
8867 | struct lpfc_iocbq *irspiocbq; |
8868 | unsigned long iflags; | |
2a9bf3d0 | 8869 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING]; |
4f774513 | 8870 | |
45ed1190 | 8871 | /* Get an irspiocbq for later ELS response processing use */ |
4f774513 JS |
8872 | irspiocbq = lpfc_sli_get_iocbq(phba); |
8873 | if (!irspiocbq) { | |
8874 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2a9bf3d0 JS |
8875 | "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d " |
8876 | "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n", | |
8877 | pring->txq_cnt, phba->iocb_cnt, | |
8878 | phba->sli.ring[LPFC_FCP_RING].txcmplq_cnt, | |
8879 | phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt); | |
45ed1190 | 8880 | return false; |
4f774513 | 8881 | } |
4f774513 | 8882 | |
45ed1190 JS |
8883 | /* Save off the slow-path queue event for work thread to process */ |
8884 | memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe)); | |
4f774513 | 8885 | spin_lock_irqsave(&phba->hbalock, iflags); |
4d9ab994 | 8886 | list_add_tail(&irspiocbq->cq_event.list, |
45ed1190 JS |
8887 | &phba->sli4_hba.sp_queue_event); |
8888 | phba->hba_flag |= HBA_SP_QUEUE_EVT; | |
4f774513 | 8889 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
4f774513 | 8890 | |
45ed1190 | 8891 | return true; |
4f774513 JS |
8892 | } |
8893 | ||
8894 | /** | |
8895 | * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event | |
8896 | * @phba: Pointer to HBA context object. | |
8897 | * @wcqe: Pointer to work-queue completion queue entry. | |
8898 | * | |
8899 | * This routine handles slow-path WQ entry comsumed event by invoking the | |
8900 | * proper WQ release routine to the slow-path WQ. | |
8901 | **/ | |
8902 | static void | |
8903 | lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba, | |
8904 | struct lpfc_wcqe_release *wcqe) | |
8905 | { | |
8906 | /* Check for the slow-path ELS work queue */ | |
8907 | if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id) | |
8908 | lpfc_sli4_wq_release(phba->sli4_hba.els_wq, | |
8909 | bf_get(lpfc_wcqe_r_wqe_index, wcqe)); | |
8910 | else | |
8911 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
8912 | "2579 Slow-path wqe consume event carries " | |
8913 | "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n", | |
8914 | bf_get(lpfc_wcqe_r_wqe_index, wcqe), | |
8915 | phba->sli4_hba.els_wq->queue_id); | |
8916 | } | |
8917 | ||
8918 | /** | |
8919 | * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event | |
8920 | * @phba: Pointer to HBA context object. | |
8921 | * @cq: Pointer to a WQ completion queue. | |
8922 | * @wcqe: Pointer to work-queue completion queue entry. | |
8923 | * | |
8924 | * This routine handles an XRI abort event. | |
8925 | * | |
8926 | * Return: true if work posted to worker thread, otherwise false. | |
8927 | **/ | |
8928 | static bool | |
8929 | lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba, | |
8930 | struct lpfc_queue *cq, | |
8931 | struct sli4_wcqe_xri_aborted *wcqe) | |
8932 | { | |
8933 | bool workposted = false; | |
8934 | struct lpfc_cq_event *cq_event; | |
8935 | unsigned long iflags; | |
8936 | ||
8937 | /* Allocate a new internal CQ_EVENT entry */ | |
8938 | cq_event = lpfc_sli4_cq_event_alloc(phba); | |
8939 | if (!cq_event) { | |
8940 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8941 | "0602 Failed to allocate CQ_EVENT entry\n"); | |
8942 | return false; | |
8943 | } | |
8944 | ||
8945 | /* Move the CQE into the proper xri abort event list */ | |
8946 | memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted)); | |
8947 | switch (cq->subtype) { | |
8948 | case LPFC_FCP: | |
8949 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8950 | list_add_tail(&cq_event->list, | |
8951 | &phba->sli4_hba.sp_fcp_xri_aborted_work_queue); | |
8952 | /* Set the fcp xri abort event flag */ | |
8953 | phba->hba_flag |= FCP_XRI_ABORT_EVENT; | |
8954 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8955 | workposted = true; | |
8956 | break; | |
8957 | case LPFC_ELS: | |
8958 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8959 | list_add_tail(&cq_event->list, | |
8960 | &phba->sli4_hba.sp_els_xri_aborted_work_queue); | |
8961 | /* Set the els xri abort event flag */ | |
8962 | phba->hba_flag |= ELS_XRI_ABORT_EVENT; | |
8963 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8964 | workposted = true; | |
8965 | break; | |
8966 | default: | |
8967 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8968 | "0603 Invalid work queue CQE subtype (x%x)\n", | |
8969 | cq->subtype); | |
8970 | workposted = false; | |
8971 | break; | |
8972 | } | |
8973 | return workposted; | |
8974 | } | |
8975 | ||
4f774513 JS |
8976 | /** |
8977 | * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry | |
8978 | * @phba: Pointer to HBA context object. | |
8979 | * @rcqe: Pointer to receive-queue completion queue entry. | |
8980 | * | |
8981 | * This routine process a receive-queue completion queue entry. | |
8982 | * | |
8983 | * Return: true if work posted to worker thread, otherwise false. | |
8984 | **/ | |
8985 | static bool | |
4d9ab994 | 8986 | lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe) |
4f774513 | 8987 | { |
4f774513 JS |
8988 | bool workposted = false; |
8989 | struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq; | |
8990 | struct lpfc_queue *drq = phba->sli4_hba.dat_rq; | |
8991 | struct hbq_dmabuf *dma_buf; | |
8992 | uint32_t status; | |
8993 | unsigned long iflags; | |
8994 | ||
4d9ab994 | 8995 | if (bf_get(lpfc_rcqe_rq_id, rcqe) != hrq->queue_id) |
4f774513 JS |
8996 | goto out; |
8997 | ||
4d9ab994 | 8998 | status = bf_get(lpfc_rcqe_status, rcqe); |
4f774513 JS |
8999 | switch (status) { |
9000 | case FC_STATUS_RQ_BUF_LEN_EXCEEDED: | |
9001 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9002 | "2537 Receive Frame Truncated!!\n"); | |
9003 | case FC_STATUS_RQ_SUCCESS: | |
5ffc266e | 9004 | lpfc_sli4_rq_release(hrq, drq); |
4f774513 JS |
9005 | spin_lock_irqsave(&phba->hbalock, iflags); |
9006 | dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list); | |
9007 | if (!dma_buf) { | |
9008 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
9009 | goto out; | |
9010 | } | |
4d9ab994 | 9011 | memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe)); |
4f774513 | 9012 | /* save off the frame for the word thread to process */ |
4d9ab994 | 9013 | list_add_tail(&dma_buf->cq_event.list, |
45ed1190 | 9014 | &phba->sli4_hba.sp_queue_event); |
4f774513 | 9015 | /* Frame received */ |
45ed1190 | 9016 | phba->hba_flag |= HBA_SP_QUEUE_EVT; |
4f774513 JS |
9017 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
9018 | workposted = true; | |
9019 | break; | |
9020 | case FC_STATUS_INSUFF_BUF_NEED_BUF: | |
9021 | case FC_STATUS_INSUFF_BUF_FRM_DISC: | |
9022 | /* Post more buffers if possible */ | |
9023 | spin_lock_irqsave(&phba->hbalock, iflags); | |
9024 | phba->hba_flag |= HBA_POST_RECEIVE_BUFFER; | |
9025 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
9026 | workposted = true; | |
9027 | break; | |
9028 | } | |
9029 | out: | |
9030 | return workposted; | |
4f774513 JS |
9031 | } |
9032 | ||
4d9ab994 JS |
9033 | /** |
9034 | * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry | |
9035 | * @phba: Pointer to HBA context object. | |
9036 | * @cq: Pointer to the completion queue. | |
9037 | * @wcqe: Pointer to a completion queue entry. | |
9038 | * | |
9039 | * This routine process a slow-path work-queue or recieve queue completion queue | |
9040 | * entry. | |
9041 | * | |
9042 | * Return: true if work posted to worker thread, otherwise false. | |
9043 | **/ | |
9044 | static bool | |
9045 | lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq, | |
9046 | struct lpfc_cqe *cqe) | |
9047 | { | |
45ed1190 | 9048 | struct lpfc_cqe cqevt; |
4d9ab994 JS |
9049 | bool workposted = false; |
9050 | ||
9051 | /* Copy the work queue CQE and convert endian order if needed */ | |
45ed1190 | 9052 | lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe)); |
4d9ab994 JS |
9053 | |
9054 | /* Check and process for different type of WCQE and dispatch */ | |
45ed1190 | 9055 | switch (bf_get(lpfc_cqe_code, &cqevt)) { |
4d9ab994 | 9056 | case CQE_CODE_COMPL_WQE: |
45ed1190 | 9057 | /* Process the WQ/RQ complete event */ |
bc73905a | 9058 | phba->last_completion_time = jiffies; |
4d9ab994 | 9059 | workposted = lpfc_sli4_sp_handle_els_wcqe(phba, |
45ed1190 | 9060 | (struct lpfc_wcqe_complete *)&cqevt); |
4d9ab994 JS |
9061 | break; |
9062 | case CQE_CODE_RELEASE_WQE: | |
9063 | /* Process the WQ release event */ | |
9064 | lpfc_sli4_sp_handle_rel_wcqe(phba, | |
45ed1190 | 9065 | (struct lpfc_wcqe_release *)&cqevt); |
4d9ab994 JS |
9066 | break; |
9067 | case CQE_CODE_XRI_ABORTED: | |
9068 | /* Process the WQ XRI abort event */ | |
bc73905a | 9069 | phba->last_completion_time = jiffies; |
4d9ab994 | 9070 | workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq, |
45ed1190 | 9071 | (struct sli4_wcqe_xri_aborted *)&cqevt); |
4d9ab994 JS |
9072 | break; |
9073 | case CQE_CODE_RECEIVE: | |
9074 | /* Process the RQ event */ | |
bc73905a | 9075 | phba->last_completion_time = jiffies; |
4d9ab994 | 9076 | workposted = lpfc_sli4_sp_handle_rcqe(phba, |
45ed1190 | 9077 | (struct lpfc_rcqe *)&cqevt); |
4d9ab994 JS |
9078 | break; |
9079 | default: | |
9080 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9081 | "0388 Not a valid WCQE code: x%x\n", | |
45ed1190 | 9082 | bf_get(lpfc_cqe_code, &cqevt)); |
4d9ab994 JS |
9083 | break; |
9084 | } | |
9085 | return workposted; | |
9086 | } | |
9087 | ||
4f774513 JS |
9088 | /** |
9089 | * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry | |
9090 | * @phba: Pointer to HBA context object. | |
9091 | * @eqe: Pointer to fast-path event queue entry. | |
9092 | * | |
9093 | * This routine process a event queue entry from the slow-path event queue. | |
9094 | * It will check the MajorCode and MinorCode to determine this is for a | |
9095 | * completion event on a completion queue, if not, an error shall be logged | |
9096 | * and just return. Otherwise, it will get to the corresponding completion | |
9097 | * queue and process all the entries on that completion queue, rearm the | |
9098 | * completion queue, and then return. | |
9099 | * | |
9100 | **/ | |
9101 | static void | |
9102 | lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe) | |
9103 | { | |
9104 | struct lpfc_queue *cq = NULL, *childq, *speq; | |
9105 | struct lpfc_cqe *cqe; | |
9106 | bool workposted = false; | |
9107 | int ecount = 0; | |
9108 | uint16_t cqid; | |
9109 | ||
cb5172ea | 9110 | if (bf_get_le32(lpfc_eqe_major_code, eqe) != 0) { |
4f774513 JS |
9111 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
9112 | "0359 Not a valid slow-path completion " | |
9113 | "event: majorcode=x%x, minorcode=x%x\n", | |
cb5172ea JS |
9114 | bf_get_le32(lpfc_eqe_major_code, eqe), |
9115 | bf_get_le32(lpfc_eqe_minor_code, eqe)); | |
4f774513 JS |
9116 | return; |
9117 | } | |
9118 | ||
9119 | /* Get the reference to the corresponding CQ */ | |
cb5172ea | 9120 | cqid = bf_get_le32(lpfc_eqe_resource_id, eqe); |
4f774513 JS |
9121 | |
9122 | /* Search for completion queue pointer matching this cqid */ | |
9123 | speq = phba->sli4_hba.sp_eq; | |
9124 | list_for_each_entry(childq, &speq->child_list, list) { | |
9125 | if (childq->queue_id == cqid) { | |
9126 | cq = childq; | |
9127 | break; | |
9128 | } | |
9129 | } | |
9130 | if (unlikely(!cq)) { | |
75baf696 JS |
9131 | if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) |
9132 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9133 | "0365 Slow-path CQ identifier " | |
9134 | "(%d) does not exist\n", cqid); | |
4f774513 JS |
9135 | return; |
9136 | } | |
9137 | ||
9138 | /* Process all the entries to the CQ */ | |
9139 | switch (cq->type) { | |
9140 | case LPFC_MCQ: | |
9141 | while ((cqe = lpfc_sli4_cq_get(cq))) { | |
9142 | workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe); | |
9143 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
9144 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM); | |
9145 | } | |
9146 | break; | |
9147 | case LPFC_WCQ: | |
9148 | while ((cqe = lpfc_sli4_cq_get(cq))) { | |
4d9ab994 | 9149 | workposted |= lpfc_sli4_sp_handle_cqe(phba, cq, cqe); |
4f774513 JS |
9150 | if (!(++ecount % LPFC_GET_QE_REL_INT)) |
9151 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM); | |
9152 | } | |
9153 | break; | |
9154 | default: | |
9155 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9156 | "0370 Invalid completion queue type (%d)\n", | |
9157 | cq->type); | |
9158 | return; | |
9159 | } | |
9160 | ||
9161 | /* Catch the no cq entry condition, log an error */ | |
9162 | if (unlikely(ecount == 0)) | |
9163 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9164 | "0371 No entry from the CQ: identifier " | |
9165 | "(x%x), type (%d)\n", cq->queue_id, cq->type); | |
9166 | ||
9167 | /* In any case, flash and re-arm the RCQ */ | |
9168 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM); | |
9169 | ||
9170 | /* wake up worker thread if there are works to be done */ | |
9171 | if (workposted) | |
9172 | lpfc_worker_wake_up(phba); | |
9173 | } | |
9174 | ||
9175 | /** | |
9176 | * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry | |
9177 | * @eqe: Pointer to fast-path completion queue entry. | |
9178 | * | |
9179 | * This routine process a fast-path work queue completion entry from fast-path | |
9180 | * event queue for FCP command response completion. | |
9181 | **/ | |
9182 | static void | |
9183 | lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, | |
9184 | struct lpfc_wcqe_complete *wcqe) | |
9185 | { | |
9186 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING]; | |
9187 | struct lpfc_iocbq *cmdiocbq; | |
9188 | struct lpfc_iocbq irspiocbq; | |
9189 | unsigned long iflags; | |
9190 | ||
9191 | spin_lock_irqsave(&phba->hbalock, iflags); | |
9192 | pring->stats.iocb_event++; | |
9193 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
9194 | ||
9195 | /* Check for response status */ | |
9196 | if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) { | |
9197 | /* If resource errors reported from HBA, reduce queue | |
9198 | * depth of the SCSI device. | |
9199 | */ | |
9200 | if ((bf_get(lpfc_wcqe_c_status, wcqe) == | |
9201 | IOSTAT_LOCAL_REJECT) && | |
9202 | (wcqe->parameter == IOERR_NO_RESOURCES)) { | |
9203 | phba->lpfc_rampdown_queue_depth(phba); | |
9204 | } | |
9205 | /* Log the error status */ | |
9206 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9207 | "0373 FCP complete error: status=x%x, " | |
9208 | "hw_status=x%x, total_data_specified=%d, " | |
9209 | "parameter=x%x, word3=x%x\n", | |
9210 | bf_get(lpfc_wcqe_c_status, wcqe), | |
9211 | bf_get(lpfc_wcqe_c_hw_status, wcqe), | |
9212 | wcqe->total_data_placed, wcqe->parameter, | |
9213 | wcqe->word3); | |
9214 | } | |
9215 | ||
9216 | /* Look up the FCP command IOCB and create pseudo response IOCB */ | |
9217 | spin_lock_irqsave(&phba->hbalock, iflags); | |
9218 | cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring, | |
9219 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
9220 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
9221 | if (unlikely(!cmdiocbq)) { | |
9222 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9223 | "0374 FCP complete with no corresponding " | |
9224 | "cmdiocb: iotag (%d)\n", | |
9225 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
9226 | return; | |
9227 | } | |
9228 | if (unlikely(!cmdiocbq->iocb_cmpl)) { | |
9229 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9230 | "0375 FCP cmdiocb not callback function " | |
9231 | "iotag: (%d)\n", | |
9232 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
9233 | return; | |
9234 | } | |
9235 | ||
9236 | /* Fake the irspiocb and copy necessary response information */ | |
341af102 | 9237 | lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe); |
4f774513 | 9238 | |
0f65ff68 JS |
9239 | if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) { |
9240 | spin_lock_irqsave(&phba->hbalock, iflags); | |
9241 | cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED; | |
9242 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
9243 | } | |
9244 | ||
4f774513 JS |
9245 | /* Pass the cmd_iocb and the rsp state to the upper layer */ |
9246 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq); | |
9247 | } | |
9248 | ||
9249 | /** | |
9250 | * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event | |
9251 | * @phba: Pointer to HBA context object. | |
9252 | * @cq: Pointer to completion queue. | |
9253 | * @wcqe: Pointer to work-queue completion queue entry. | |
9254 | * | |
9255 | * This routine handles an fast-path WQ entry comsumed event by invoking the | |
9256 | * proper WQ release routine to the slow-path WQ. | |
9257 | **/ | |
9258 | static void | |
9259 | lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq, | |
9260 | struct lpfc_wcqe_release *wcqe) | |
9261 | { | |
9262 | struct lpfc_queue *childwq; | |
9263 | bool wqid_matched = false; | |
9264 | uint16_t fcp_wqid; | |
9265 | ||
9266 | /* Check for fast-path FCP work queue release */ | |
9267 | fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe); | |
9268 | list_for_each_entry(childwq, &cq->child_list, list) { | |
9269 | if (childwq->queue_id == fcp_wqid) { | |
9270 | lpfc_sli4_wq_release(childwq, | |
9271 | bf_get(lpfc_wcqe_r_wqe_index, wcqe)); | |
9272 | wqid_matched = true; | |
9273 | break; | |
9274 | } | |
9275 | } | |
9276 | /* Report warning log message if no match found */ | |
9277 | if (wqid_matched != true) | |
9278 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9279 | "2580 Fast-path wqe consume event carries " | |
9280 | "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid); | |
9281 | } | |
9282 | ||
9283 | /** | |
9284 | * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry | |
9285 | * @cq: Pointer to the completion queue. | |
9286 | * @eqe: Pointer to fast-path completion queue entry. | |
9287 | * | |
9288 | * This routine process a fast-path work queue completion entry from fast-path | |
9289 | * event queue for FCP command response completion. | |
9290 | **/ | |
9291 | static int | |
9292 | lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq, | |
9293 | struct lpfc_cqe *cqe) | |
9294 | { | |
9295 | struct lpfc_wcqe_release wcqe; | |
9296 | bool workposted = false; | |
9297 | ||
9298 | /* Copy the work queue CQE and convert endian order if needed */ | |
9299 | lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe)); | |
9300 | ||
9301 | /* Check and process for different type of WCQE and dispatch */ | |
9302 | switch (bf_get(lpfc_wcqe_c_code, &wcqe)) { | |
9303 | case CQE_CODE_COMPL_WQE: | |
9304 | /* Process the WQ complete event */ | |
98fc5dd9 | 9305 | phba->last_completion_time = jiffies; |
4f774513 JS |
9306 | lpfc_sli4_fp_handle_fcp_wcqe(phba, |
9307 | (struct lpfc_wcqe_complete *)&wcqe); | |
9308 | break; | |
9309 | case CQE_CODE_RELEASE_WQE: | |
9310 | /* Process the WQ release event */ | |
9311 | lpfc_sli4_fp_handle_rel_wcqe(phba, cq, | |
9312 | (struct lpfc_wcqe_release *)&wcqe); | |
9313 | break; | |
9314 | case CQE_CODE_XRI_ABORTED: | |
9315 | /* Process the WQ XRI abort event */ | |
bc73905a | 9316 | phba->last_completion_time = jiffies; |
4f774513 JS |
9317 | workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq, |
9318 | (struct sli4_wcqe_xri_aborted *)&wcqe); | |
9319 | break; | |
9320 | default: | |
9321 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9322 | "0144 Not a valid WCQE code: x%x\n", | |
9323 | bf_get(lpfc_wcqe_c_code, &wcqe)); | |
9324 | break; | |
9325 | } | |
9326 | return workposted; | |
9327 | } | |
9328 | ||
9329 | /** | |
9330 | * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry | |
9331 | * @phba: Pointer to HBA context object. | |
9332 | * @eqe: Pointer to fast-path event queue entry. | |
9333 | * | |
9334 | * This routine process a event queue entry from the fast-path event queue. | |
9335 | * It will check the MajorCode and MinorCode to determine this is for a | |
9336 | * completion event on a completion queue, if not, an error shall be logged | |
9337 | * and just return. Otherwise, it will get to the corresponding completion | |
9338 | * queue and process all the entries on the completion queue, rearm the | |
9339 | * completion queue, and then return. | |
9340 | **/ | |
9341 | static void | |
9342 | lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe, | |
9343 | uint32_t fcp_cqidx) | |
9344 | { | |
9345 | struct lpfc_queue *cq; | |
9346 | struct lpfc_cqe *cqe; | |
9347 | bool workposted = false; | |
9348 | uint16_t cqid; | |
9349 | int ecount = 0; | |
9350 | ||
cb5172ea | 9351 | if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) { |
4f774513 JS |
9352 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
9353 | "0366 Not a valid fast-path completion " | |
9354 | "event: majorcode=x%x, minorcode=x%x\n", | |
cb5172ea JS |
9355 | bf_get_le32(lpfc_eqe_major_code, eqe), |
9356 | bf_get_le32(lpfc_eqe_minor_code, eqe)); | |
4f774513 JS |
9357 | return; |
9358 | } | |
9359 | ||
9360 | cq = phba->sli4_hba.fcp_cq[fcp_cqidx]; | |
9361 | if (unlikely(!cq)) { | |
75baf696 JS |
9362 | if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) |
9363 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9364 | "0367 Fast-path completion queue " | |
9365 | "does not exist\n"); | |
4f774513 JS |
9366 | return; |
9367 | } | |
9368 | ||
9369 | /* Get the reference to the corresponding CQ */ | |
cb5172ea | 9370 | cqid = bf_get_le32(lpfc_eqe_resource_id, eqe); |
4f774513 JS |
9371 | if (unlikely(cqid != cq->queue_id)) { |
9372 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9373 | "0368 Miss-matched fast-path completion " | |
9374 | "queue identifier: eqcqid=%d, fcpcqid=%d\n", | |
9375 | cqid, cq->queue_id); | |
9376 | return; | |
9377 | } | |
9378 | ||
9379 | /* Process all the entries to the CQ */ | |
9380 | while ((cqe = lpfc_sli4_cq_get(cq))) { | |
9381 | workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe); | |
9382 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
9383 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM); | |
9384 | } | |
9385 | ||
9386 | /* Catch the no cq entry condition */ | |
9387 | if (unlikely(ecount == 0)) | |
9388 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9389 | "0369 No entry from fast-path completion " | |
9390 | "queue fcpcqid=%d\n", cq->queue_id); | |
9391 | ||
9392 | /* In any case, flash and re-arm the CQ */ | |
9393 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM); | |
9394 | ||
9395 | /* wake up worker thread if there are works to be done */ | |
9396 | if (workposted) | |
9397 | lpfc_worker_wake_up(phba); | |
9398 | } | |
9399 | ||
9400 | static void | |
9401 | lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq) | |
9402 | { | |
9403 | struct lpfc_eqe *eqe; | |
9404 | ||
9405 | /* walk all the EQ entries and drop on the floor */ | |
9406 | while ((eqe = lpfc_sli4_eq_get(eq))) | |
9407 | ; | |
9408 | ||
9409 | /* Clear and re-arm the EQ */ | |
9410 | lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM); | |
9411 | } | |
9412 | ||
9413 | /** | |
9414 | * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device | |
9415 | * @irq: Interrupt number. | |
9416 | * @dev_id: The device context pointer. | |
9417 | * | |
9418 | * This function is directly called from the PCI layer as an interrupt | |
9419 | * service routine when device with SLI-4 interface spec is enabled with | |
9420 | * MSI-X multi-message interrupt mode and there are slow-path events in | |
9421 | * the HBA. However, when the device is enabled with either MSI or Pin-IRQ | |
9422 | * interrupt mode, this function is called as part of the device-level | |
9423 | * interrupt handler. When the PCI slot is in error recovery or the HBA is | |
9424 | * undergoing initialization, the interrupt handler will not process the | |
9425 | * interrupt. The link attention and ELS ring attention events are handled | |
9426 | * by the worker thread. The interrupt handler signals the worker thread | |
9427 | * and returns for these events. This function is called without any lock | |
9428 | * held. It gets the hbalock to access and update SLI data structures. | |
9429 | * | |
9430 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
9431 | * returns IRQ_NONE. | |
9432 | **/ | |
9433 | irqreturn_t | |
9434 | lpfc_sli4_sp_intr_handler(int irq, void *dev_id) | |
9435 | { | |
9436 | struct lpfc_hba *phba; | |
9437 | struct lpfc_queue *speq; | |
9438 | struct lpfc_eqe *eqe; | |
9439 | unsigned long iflag; | |
9440 | int ecount = 0; | |
9441 | ||
9442 | /* | |
9443 | * Get the driver's phba structure from the dev_id | |
9444 | */ | |
9445 | phba = (struct lpfc_hba *)dev_id; | |
9446 | ||
9447 | if (unlikely(!phba)) | |
9448 | return IRQ_NONE; | |
9449 | ||
9450 | /* Get to the EQ struct associated with this vector */ | |
9451 | speq = phba->sli4_hba.sp_eq; | |
9452 | ||
9453 | /* Check device state for handling interrupt */ | |
9454 | if (unlikely(lpfc_intr_state_check(phba))) { | |
9455 | /* Check again for link_state with lock held */ | |
9456 | spin_lock_irqsave(&phba->hbalock, iflag); | |
9457 | if (phba->link_state < LPFC_LINK_DOWN) | |
9458 | /* Flush, clear interrupt, and rearm the EQ */ | |
9459 | lpfc_sli4_eq_flush(phba, speq); | |
9460 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
9461 | return IRQ_NONE; | |
9462 | } | |
9463 | ||
9464 | /* | |
9465 | * Process all the event on FCP slow-path EQ | |
9466 | */ | |
9467 | while ((eqe = lpfc_sli4_eq_get(speq))) { | |
9468 | lpfc_sli4_sp_handle_eqe(phba, eqe); | |
9469 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
9470 | lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM); | |
9471 | } | |
9472 | ||
9473 | /* Always clear and re-arm the slow-path EQ */ | |
9474 | lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM); | |
9475 | ||
9476 | /* Catch the no cq entry condition */ | |
9477 | if (unlikely(ecount == 0)) { | |
9478 | if (phba->intr_type == MSIX) | |
9479 | /* MSI-X treated interrupt served as no EQ share INT */ | |
9480 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9481 | "0357 MSI-X interrupt with no EQE\n"); | |
9482 | else | |
9483 | /* Non MSI-X treated on interrupt as EQ share INT */ | |
9484 | return IRQ_NONE; | |
9485 | } | |
9486 | ||
9487 | return IRQ_HANDLED; | |
9488 | } /* lpfc_sli4_sp_intr_handler */ | |
9489 | ||
9490 | /** | |
9491 | * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device | |
9492 | * @irq: Interrupt number. | |
9493 | * @dev_id: The device context pointer. | |
9494 | * | |
9495 | * This function is directly called from the PCI layer as an interrupt | |
9496 | * service routine when device with SLI-4 interface spec is enabled with | |
9497 | * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB | |
9498 | * ring event in the HBA. However, when the device is enabled with either | |
9499 | * MSI or Pin-IRQ interrupt mode, this function is called as part of the | |
9500 | * device-level interrupt handler. When the PCI slot is in error recovery | |
9501 | * or the HBA is undergoing initialization, the interrupt handler will not | |
9502 | * process the interrupt. The SCSI FCP fast-path ring event are handled in | |
9503 | * the intrrupt context. This function is called without any lock held. | |
9504 | * It gets the hbalock to access and update SLI data structures. Note that, | |
9505 | * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is | |
9506 | * equal to that of FCP CQ index. | |
9507 | * | |
9508 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
9509 | * returns IRQ_NONE. | |
9510 | **/ | |
9511 | irqreturn_t | |
9512 | lpfc_sli4_fp_intr_handler(int irq, void *dev_id) | |
9513 | { | |
9514 | struct lpfc_hba *phba; | |
9515 | struct lpfc_fcp_eq_hdl *fcp_eq_hdl; | |
9516 | struct lpfc_queue *fpeq; | |
9517 | struct lpfc_eqe *eqe; | |
9518 | unsigned long iflag; | |
9519 | int ecount = 0; | |
9520 | uint32_t fcp_eqidx; | |
9521 | ||
9522 | /* Get the driver's phba structure from the dev_id */ | |
9523 | fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id; | |
9524 | phba = fcp_eq_hdl->phba; | |
9525 | fcp_eqidx = fcp_eq_hdl->idx; | |
9526 | ||
9527 | if (unlikely(!phba)) | |
9528 | return IRQ_NONE; | |
9529 | ||
9530 | /* Get to the EQ struct associated with this vector */ | |
9531 | fpeq = phba->sli4_hba.fp_eq[fcp_eqidx]; | |
9532 | ||
9533 | /* Check device state for handling interrupt */ | |
9534 | if (unlikely(lpfc_intr_state_check(phba))) { | |
9535 | /* Check again for link_state with lock held */ | |
9536 | spin_lock_irqsave(&phba->hbalock, iflag); | |
9537 | if (phba->link_state < LPFC_LINK_DOWN) | |
9538 | /* Flush, clear interrupt, and rearm the EQ */ | |
9539 | lpfc_sli4_eq_flush(phba, fpeq); | |
9540 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
9541 | return IRQ_NONE; | |
9542 | } | |
9543 | ||
9544 | /* | |
9545 | * Process all the event on FCP fast-path EQ | |
9546 | */ | |
9547 | while ((eqe = lpfc_sli4_eq_get(fpeq))) { | |
9548 | lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx); | |
9549 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
9550 | lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM); | |
9551 | } | |
9552 | ||
9553 | /* Always clear and re-arm the fast-path EQ */ | |
9554 | lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM); | |
9555 | ||
9556 | if (unlikely(ecount == 0)) { | |
9557 | if (phba->intr_type == MSIX) | |
9558 | /* MSI-X treated interrupt served as no EQ share INT */ | |
9559 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9560 | "0358 MSI-X interrupt with no EQE\n"); | |
9561 | else | |
9562 | /* Non MSI-X treated on interrupt as EQ share INT */ | |
9563 | return IRQ_NONE; | |
9564 | } | |
9565 | ||
9566 | return IRQ_HANDLED; | |
9567 | } /* lpfc_sli4_fp_intr_handler */ | |
9568 | ||
9569 | /** | |
9570 | * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device | |
9571 | * @irq: Interrupt number. | |
9572 | * @dev_id: The device context pointer. | |
9573 | * | |
9574 | * This function is the device-level interrupt handler to device with SLI-4 | |
9575 | * interface spec, called from the PCI layer when either MSI or Pin-IRQ | |
9576 | * interrupt mode is enabled and there is an event in the HBA which requires | |
9577 | * driver attention. This function invokes the slow-path interrupt attention | |
9578 | * handling function and fast-path interrupt attention handling function in | |
9579 | * turn to process the relevant HBA attention events. This function is called | |
9580 | * without any lock held. It gets the hbalock to access and update SLI data | |
9581 | * structures. | |
9582 | * | |
9583 | * This function returns IRQ_HANDLED when interrupt is handled, else it | |
9584 | * returns IRQ_NONE. | |
9585 | **/ | |
9586 | irqreturn_t | |
9587 | lpfc_sli4_intr_handler(int irq, void *dev_id) | |
9588 | { | |
9589 | struct lpfc_hba *phba; | |
9590 | irqreturn_t sp_irq_rc, fp_irq_rc; | |
9591 | bool fp_handled = false; | |
9592 | uint32_t fcp_eqidx; | |
9593 | ||
9594 | /* Get the driver's phba structure from the dev_id */ | |
9595 | phba = (struct lpfc_hba *)dev_id; | |
9596 | ||
9597 | if (unlikely(!phba)) | |
9598 | return IRQ_NONE; | |
9599 | ||
9600 | /* | |
9601 | * Invokes slow-path host attention interrupt handling as appropriate. | |
9602 | */ | |
9603 | sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id); | |
9604 | ||
9605 | /* | |
9606 | * Invoke fast-path host attention interrupt handling as appropriate. | |
9607 | */ | |
9608 | for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { | |
9609 | fp_irq_rc = lpfc_sli4_fp_intr_handler(irq, | |
9610 | &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]); | |
9611 | if (fp_irq_rc == IRQ_HANDLED) | |
9612 | fp_handled |= true; | |
9613 | } | |
9614 | ||
9615 | return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc; | |
9616 | } /* lpfc_sli4_intr_handler */ | |
9617 | ||
9618 | /** | |
9619 | * lpfc_sli4_queue_free - free a queue structure and associated memory | |
9620 | * @queue: The queue structure to free. | |
9621 | * | |
b595076a | 9622 | * This function frees a queue structure and the DMAable memory used for |
4f774513 JS |
9623 | * the host resident queue. This function must be called after destroying the |
9624 | * queue on the HBA. | |
9625 | **/ | |
9626 | void | |
9627 | lpfc_sli4_queue_free(struct lpfc_queue *queue) | |
9628 | { | |
9629 | struct lpfc_dmabuf *dmabuf; | |
9630 | ||
9631 | if (!queue) | |
9632 | return; | |
9633 | ||
9634 | while (!list_empty(&queue->page_list)) { | |
9635 | list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf, | |
9636 | list); | |
49198b37 | 9637 | dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE, |
4f774513 JS |
9638 | dmabuf->virt, dmabuf->phys); |
9639 | kfree(dmabuf); | |
9640 | } | |
9641 | kfree(queue); | |
9642 | return; | |
9643 | } | |
9644 | ||
9645 | /** | |
9646 | * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure | |
9647 | * @phba: The HBA that this queue is being created on. | |
9648 | * @entry_size: The size of each queue entry for this queue. | |
9649 | * @entry count: The number of entries that this queue will handle. | |
9650 | * | |
9651 | * This function allocates a queue structure and the DMAable memory used for | |
9652 | * the host resident queue. This function must be called before creating the | |
9653 | * queue on the HBA. | |
9654 | **/ | |
9655 | struct lpfc_queue * | |
9656 | lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size, | |
9657 | uint32_t entry_count) | |
9658 | { | |
9659 | struct lpfc_queue *queue; | |
9660 | struct lpfc_dmabuf *dmabuf; | |
9661 | int x, total_qe_count; | |
9662 | void *dma_pointer; | |
cb5172ea | 9663 | uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz; |
4f774513 | 9664 | |
cb5172ea JS |
9665 | if (!phba->sli4_hba.pc_sli4_params.supported) |
9666 | hw_page_size = SLI4_PAGE_SIZE; | |
9667 | ||
4f774513 JS |
9668 | queue = kzalloc(sizeof(struct lpfc_queue) + |
9669 | (sizeof(union sli4_qe) * entry_count), GFP_KERNEL); | |
9670 | if (!queue) | |
9671 | return NULL; | |
cb5172ea JS |
9672 | queue->page_count = (ALIGN(entry_size * entry_count, |
9673 | hw_page_size))/hw_page_size; | |
4f774513 JS |
9674 | INIT_LIST_HEAD(&queue->list); |
9675 | INIT_LIST_HEAD(&queue->page_list); | |
9676 | INIT_LIST_HEAD(&queue->child_list); | |
9677 | for (x = 0, total_qe_count = 0; x < queue->page_count; x++) { | |
9678 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
9679 | if (!dmabuf) | |
9680 | goto out_fail; | |
9681 | dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, | |
cb5172ea | 9682 | hw_page_size, &dmabuf->phys, |
4f774513 JS |
9683 | GFP_KERNEL); |
9684 | if (!dmabuf->virt) { | |
9685 | kfree(dmabuf); | |
9686 | goto out_fail; | |
9687 | } | |
cb5172ea | 9688 | memset(dmabuf->virt, 0, hw_page_size); |
4f774513 JS |
9689 | dmabuf->buffer_tag = x; |
9690 | list_add_tail(&dmabuf->list, &queue->page_list); | |
9691 | /* initialize queue's entry array */ | |
9692 | dma_pointer = dmabuf->virt; | |
9693 | for (; total_qe_count < entry_count && | |
cb5172ea | 9694 | dma_pointer < (hw_page_size + dmabuf->virt); |
4f774513 JS |
9695 | total_qe_count++, dma_pointer += entry_size) { |
9696 | queue->qe[total_qe_count].address = dma_pointer; | |
9697 | } | |
9698 | } | |
9699 | queue->entry_size = entry_size; | |
9700 | queue->entry_count = entry_count; | |
9701 | queue->phba = phba; | |
9702 | ||
9703 | return queue; | |
9704 | out_fail: | |
9705 | lpfc_sli4_queue_free(queue); | |
9706 | return NULL; | |
9707 | } | |
9708 | ||
9709 | /** | |
9710 | * lpfc_eq_create - Create an Event Queue on the HBA | |
9711 | * @phba: HBA structure that indicates port to create a queue on. | |
9712 | * @eq: The queue structure to use to create the event queue. | |
9713 | * @imax: The maximum interrupt per second limit. | |
9714 | * | |
9715 | * This function creates an event queue, as detailed in @eq, on a port, | |
9716 | * described by @phba by sending an EQ_CREATE mailbox command to the HBA. | |
9717 | * | |
9718 | * The @phba struct is used to send mailbox command to HBA. The @eq struct | |
9719 | * is used to get the entry count and entry size that are necessary to | |
9720 | * determine the number of pages to allocate and use for this queue. This | |
9721 | * function will send the EQ_CREATE mailbox command to the HBA to setup the | |
9722 | * event queue. This function is asynchronous and will wait for the mailbox | |
9723 | * command to finish before continuing. | |
9724 | * | |
9725 | * On success this function will return a zero. If unable to allocate enough | |
d439d286 JS |
9726 | * memory this function will return -ENOMEM. If the queue create mailbox command |
9727 | * fails this function will return -ENXIO. | |
4f774513 JS |
9728 | **/ |
9729 | uint32_t | |
9730 | lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax) | |
9731 | { | |
9732 | struct lpfc_mbx_eq_create *eq_create; | |
9733 | LPFC_MBOXQ_t *mbox; | |
9734 | int rc, length, status = 0; | |
9735 | struct lpfc_dmabuf *dmabuf; | |
9736 | uint32_t shdr_status, shdr_add_status; | |
9737 | union lpfc_sli4_cfg_shdr *shdr; | |
9738 | uint16_t dmult; | |
49198b37 JS |
9739 | uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz; |
9740 | ||
9741 | if (!phba->sli4_hba.pc_sli4_params.supported) | |
9742 | hw_page_size = SLI4_PAGE_SIZE; | |
4f774513 JS |
9743 | |
9744 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
9745 | if (!mbox) | |
9746 | return -ENOMEM; | |
9747 | length = (sizeof(struct lpfc_mbx_eq_create) - | |
9748 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9749 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
9750 | LPFC_MBOX_OPCODE_EQ_CREATE, | |
9751 | length, LPFC_SLI4_MBX_EMBED); | |
9752 | eq_create = &mbox->u.mqe.un.eq_create; | |
9753 | bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request, | |
9754 | eq->page_count); | |
9755 | bf_set(lpfc_eq_context_size, &eq_create->u.request.context, | |
9756 | LPFC_EQE_SIZE); | |
9757 | bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1); | |
9758 | /* Calculate delay multiper from maximum interrupt per second */ | |
9759 | dmult = LPFC_DMULT_CONST/imax - 1; | |
9760 | bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context, | |
9761 | dmult); | |
9762 | switch (eq->entry_count) { | |
9763 | default: | |
9764 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9765 | "0360 Unsupported EQ count. (%d)\n", | |
9766 | eq->entry_count); | |
9767 | if (eq->entry_count < 256) | |
9768 | return -EINVAL; | |
9769 | /* otherwise default to smallest count (drop through) */ | |
9770 | case 256: | |
9771 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9772 | LPFC_EQ_CNT_256); | |
9773 | break; | |
9774 | case 512: | |
9775 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9776 | LPFC_EQ_CNT_512); | |
9777 | break; | |
9778 | case 1024: | |
9779 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9780 | LPFC_EQ_CNT_1024); | |
9781 | break; | |
9782 | case 2048: | |
9783 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9784 | LPFC_EQ_CNT_2048); | |
9785 | break; | |
9786 | case 4096: | |
9787 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9788 | LPFC_EQ_CNT_4096); | |
9789 | break; | |
9790 | } | |
9791 | list_for_each_entry(dmabuf, &eq->page_list, list) { | |
49198b37 | 9792 | memset(dmabuf->virt, 0, hw_page_size); |
4f774513 JS |
9793 | eq_create->u.request.page[dmabuf->buffer_tag].addr_lo = |
9794 | putPaddrLow(dmabuf->phys); | |
9795 | eq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9796 | putPaddrHigh(dmabuf->phys); | |
9797 | } | |
9798 | mbox->vport = phba->pport; | |
9799 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
9800 | mbox->context1 = NULL; | |
9801 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
9802 | shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr; | |
9803 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9804 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9805 | if (shdr_status || shdr_add_status || rc) { | |
9806 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9807 | "2500 EQ_CREATE mailbox failed with " | |
9808 | "status x%x add_status x%x, mbx status x%x\n", | |
9809 | shdr_status, shdr_add_status, rc); | |
9810 | status = -ENXIO; | |
9811 | } | |
9812 | eq->type = LPFC_EQ; | |
9813 | eq->subtype = LPFC_NONE; | |
9814 | eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response); | |
9815 | if (eq->queue_id == 0xFFFF) | |
9816 | status = -ENXIO; | |
9817 | eq->host_index = 0; | |
9818 | eq->hba_index = 0; | |
9819 | ||
8fa38513 | 9820 | mempool_free(mbox, phba->mbox_mem_pool); |
4f774513 JS |
9821 | return status; |
9822 | } | |
9823 | ||
9824 | /** | |
9825 | * lpfc_cq_create - Create a Completion Queue on the HBA | |
9826 | * @phba: HBA structure that indicates port to create a queue on. | |
9827 | * @cq: The queue structure to use to create the completion queue. | |
9828 | * @eq: The event queue to bind this completion queue to. | |
9829 | * | |
9830 | * This function creates a completion queue, as detailed in @wq, on a port, | |
9831 | * described by @phba by sending a CQ_CREATE mailbox command to the HBA. | |
9832 | * | |
9833 | * The @phba struct is used to send mailbox command to HBA. The @cq struct | |
9834 | * is used to get the entry count and entry size that are necessary to | |
9835 | * determine the number of pages to allocate and use for this queue. The @eq | |
9836 | * is used to indicate which event queue to bind this completion queue to. This | |
9837 | * function will send the CQ_CREATE mailbox command to the HBA to setup the | |
9838 | * completion queue. This function is asynchronous and will wait for the mailbox | |
9839 | * command to finish before continuing. | |
9840 | * | |
9841 | * On success this function will return a zero. If unable to allocate enough | |
d439d286 JS |
9842 | * memory this function will return -ENOMEM. If the queue create mailbox command |
9843 | * fails this function will return -ENXIO. | |
4f774513 JS |
9844 | **/ |
9845 | uint32_t | |
9846 | lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq, | |
9847 | struct lpfc_queue *eq, uint32_t type, uint32_t subtype) | |
9848 | { | |
9849 | struct lpfc_mbx_cq_create *cq_create; | |
9850 | struct lpfc_dmabuf *dmabuf; | |
9851 | LPFC_MBOXQ_t *mbox; | |
9852 | int rc, length, status = 0; | |
9853 | uint32_t shdr_status, shdr_add_status; | |
9854 | union lpfc_sli4_cfg_shdr *shdr; | |
49198b37 JS |
9855 | uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz; |
9856 | ||
9857 | if (!phba->sli4_hba.pc_sli4_params.supported) | |
9858 | hw_page_size = SLI4_PAGE_SIZE; | |
9859 | ||
4f774513 JS |
9860 | |
9861 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
9862 | if (!mbox) | |
9863 | return -ENOMEM; | |
9864 | length = (sizeof(struct lpfc_mbx_cq_create) - | |
9865 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9866 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
9867 | LPFC_MBOX_OPCODE_CQ_CREATE, | |
9868 | length, LPFC_SLI4_MBX_EMBED); | |
9869 | cq_create = &mbox->u.mqe.un.cq_create; | |
9870 | bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request, | |
9871 | cq->page_count); | |
9872 | bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1); | |
9873 | bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1); | |
9874 | bf_set(lpfc_cq_eq_id, &cq_create->u.request.context, eq->queue_id); | |
9875 | switch (cq->entry_count) { | |
9876 | default: | |
9877 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9878 | "0361 Unsupported CQ count. (%d)\n", | |
9879 | cq->entry_count); | |
9880 | if (cq->entry_count < 256) | |
9881 | return -EINVAL; | |
9882 | /* otherwise default to smallest count (drop through) */ | |
9883 | case 256: | |
9884 | bf_set(lpfc_cq_context_count, &cq_create->u.request.context, | |
9885 | LPFC_CQ_CNT_256); | |
9886 | break; | |
9887 | case 512: | |
9888 | bf_set(lpfc_cq_context_count, &cq_create->u.request.context, | |
9889 | LPFC_CQ_CNT_512); | |
9890 | break; | |
9891 | case 1024: | |
9892 | bf_set(lpfc_cq_context_count, &cq_create->u.request.context, | |
9893 | LPFC_CQ_CNT_1024); | |
9894 | break; | |
9895 | } | |
9896 | list_for_each_entry(dmabuf, &cq->page_list, list) { | |
49198b37 | 9897 | memset(dmabuf->virt, 0, hw_page_size); |
4f774513 JS |
9898 | cq_create->u.request.page[dmabuf->buffer_tag].addr_lo = |
9899 | putPaddrLow(dmabuf->phys); | |
9900 | cq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9901 | putPaddrHigh(dmabuf->phys); | |
9902 | } | |
9903 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
9904 | ||
9905 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
9906 | shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr; | |
9907 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9908 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9909 | if (shdr_status || shdr_add_status || rc) { | |
9910 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9911 | "2501 CQ_CREATE mailbox failed with " | |
9912 | "status x%x add_status x%x, mbx status x%x\n", | |
9913 | shdr_status, shdr_add_status, rc); | |
9914 | status = -ENXIO; | |
9915 | goto out; | |
9916 | } | |
9917 | cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response); | |
9918 | if (cq->queue_id == 0xFFFF) { | |
9919 | status = -ENXIO; | |
9920 | goto out; | |
9921 | } | |
9922 | /* link the cq onto the parent eq child list */ | |
9923 | list_add_tail(&cq->list, &eq->child_list); | |
9924 | /* Set up completion queue's type and subtype */ | |
9925 | cq->type = type; | |
9926 | cq->subtype = subtype; | |
9927 | cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response); | |
9928 | cq->host_index = 0; | |
9929 | cq->hba_index = 0; | |
4f774513 | 9930 | |
8fa38513 JS |
9931 | out: |
9932 | mempool_free(mbox, phba->mbox_mem_pool); | |
4f774513 JS |
9933 | return status; |
9934 | } | |
9935 | ||
b19a061a JS |
9936 | /** |
9937 | * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration | |
9938 | * @phba: HBA structure that indicates port to create a queue on. | |
9939 | * @mq: The queue structure to use to create the mailbox queue. | |
9940 | * @mbox: An allocated pointer to type LPFC_MBOXQ_t | |
9941 | * @cq: The completion queue to associate with this cq. | |
9942 | * | |
9943 | * This function provides failback (fb) functionality when the | |
9944 | * mq_create_ext fails on older FW generations. It's purpose is identical | |
9945 | * to mq_create_ext otherwise. | |
9946 | * | |
9947 | * This routine cannot fail as all attributes were previously accessed and | |
9948 | * initialized in mq_create_ext. | |
9949 | **/ | |
9950 | static void | |
9951 | lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq, | |
9952 | LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq) | |
9953 | { | |
9954 | struct lpfc_mbx_mq_create *mq_create; | |
9955 | struct lpfc_dmabuf *dmabuf; | |
9956 | int length; | |
9957 | ||
9958 | length = (sizeof(struct lpfc_mbx_mq_create) - | |
9959 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9960 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
9961 | LPFC_MBOX_OPCODE_MQ_CREATE, | |
9962 | length, LPFC_SLI4_MBX_EMBED); | |
9963 | mq_create = &mbox->u.mqe.un.mq_create; | |
9964 | bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request, | |
9965 | mq->page_count); | |
9966 | bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context, | |
9967 | cq->queue_id); | |
9968 | bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1); | |
9969 | switch (mq->entry_count) { | |
9970 | case 16: | |
9971 | bf_set(lpfc_mq_context_count, &mq_create->u.request.context, | |
9972 | LPFC_MQ_CNT_16); | |
9973 | break; | |
9974 | case 32: | |
9975 | bf_set(lpfc_mq_context_count, &mq_create->u.request.context, | |
9976 | LPFC_MQ_CNT_32); | |
9977 | break; | |
9978 | case 64: | |
9979 | bf_set(lpfc_mq_context_count, &mq_create->u.request.context, | |
9980 | LPFC_MQ_CNT_64); | |
9981 | break; | |
9982 | case 128: | |
9983 | bf_set(lpfc_mq_context_count, &mq_create->u.request.context, | |
9984 | LPFC_MQ_CNT_128); | |
9985 | break; | |
9986 | } | |
9987 | list_for_each_entry(dmabuf, &mq->page_list, list) { | |
9988 | mq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
9989 | putPaddrLow(dmabuf->phys); | |
9990 | mq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9991 | putPaddrHigh(dmabuf->phys); | |
9992 | } | |
9993 | } | |
9994 | ||
04c68496 JS |
9995 | /** |
9996 | * lpfc_mq_create - Create a mailbox Queue on the HBA | |
9997 | * @phba: HBA structure that indicates port to create a queue on. | |
9998 | * @mq: The queue structure to use to create the mailbox queue. | |
b19a061a JS |
9999 | * @cq: The completion queue to associate with this cq. |
10000 | * @subtype: The queue's subtype. | |
04c68496 JS |
10001 | * |
10002 | * This function creates a mailbox queue, as detailed in @mq, on a port, | |
10003 | * described by @phba by sending a MQ_CREATE mailbox command to the HBA. | |
10004 | * | |
10005 | * The @phba struct is used to send mailbox command to HBA. The @cq struct | |
10006 | * is used to get the entry count and entry size that are necessary to | |
10007 | * determine the number of pages to allocate and use for this queue. This | |
10008 | * function will send the MQ_CREATE mailbox command to the HBA to setup the | |
10009 | * mailbox queue. This function is asynchronous and will wait for the mailbox | |
10010 | * command to finish before continuing. | |
10011 | * | |
10012 | * On success this function will return a zero. If unable to allocate enough | |
d439d286 JS |
10013 | * memory this function will return -ENOMEM. If the queue create mailbox command |
10014 | * fails this function will return -ENXIO. | |
04c68496 | 10015 | **/ |
b19a061a | 10016 | int32_t |
04c68496 JS |
10017 | lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq, |
10018 | struct lpfc_queue *cq, uint32_t subtype) | |
10019 | { | |
10020 | struct lpfc_mbx_mq_create *mq_create; | |
b19a061a | 10021 | struct lpfc_mbx_mq_create_ext *mq_create_ext; |
04c68496 JS |
10022 | struct lpfc_dmabuf *dmabuf; |
10023 | LPFC_MBOXQ_t *mbox; | |
10024 | int rc, length, status = 0; | |
10025 | uint32_t shdr_status, shdr_add_status; | |
10026 | union lpfc_sli4_cfg_shdr *shdr; | |
49198b37 | 10027 | uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz; |
04c68496 | 10028 | |
49198b37 JS |
10029 | if (!phba->sli4_hba.pc_sli4_params.supported) |
10030 | hw_page_size = SLI4_PAGE_SIZE; | |
b19a061a | 10031 | |
04c68496 JS |
10032 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
10033 | if (!mbox) | |
10034 | return -ENOMEM; | |
b19a061a | 10035 | length = (sizeof(struct lpfc_mbx_mq_create_ext) - |
04c68496 JS |
10036 | sizeof(struct lpfc_sli4_cfg_mhdr)); |
10037 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
b19a061a | 10038 | LPFC_MBOX_OPCODE_MQ_CREATE_EXT, |
04c68496 | 10039 | length, LPFC_SLI4_MBX_EMBED); |
b19a061a JS |
10040 | |
10041 | mq_create_ext = &mbox->u.mqe.un.mq_create_ext; | |
10042 | bf_set(lpfc_mbx_mq_create_ext_num_pages, &mq_create_ext->u.request, | |
04c68496 | 10043 | mq->page_count); |
b19a061a JS |
10044 | bf_set(lpfc_mbx_mq_create_ext_async_evt_link, &mq_create_ext->u.request, |
10045 | 1); | |
10046 | bf_set(lpfc_mbx_mq_create_ext_async_evt_fcfste, | |
10047 | &mq_create_ext->u.request, 1); | |
10048 | bf_set(lpfc_mbx_mq_create_ext_async_evt_group5, | |
10049 | &mq_create_ext->u.request, 1); | |
10050 | bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context, | |
10051 | cq->queue_id); | |
10052 | bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1); | |
04c68496 JS |
10053 | switch (mq->entry_count) { |
10054 | default: | |
10055 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10056 | "0362 Unsupported MQ count. (%d)\n", | |
10057 | mq->entry_count); | |
10058 | if (mq->entry_count < 16) | |
10059 | return -EINVAL; | |
10060 | /* otherwise default to smallest count (drop through) */ | |
10061 | case 16: | |
b19a061a | 10062 | bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context, |
04c68496 JS |
10063 | LPFC_MQ_CNT_16); |
10064 | break; | |
10065 | case 32: | |
b19a061a | 10066 | bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context, |
04c68496 JS |
10067 | LPFC_MQ_CNT_32); |
10068 | break; | |
10069 | case 64: | |
b19a061a | 10070 | bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context, |
04c68496 JS |
10071 | LPFC_MQ_CNT_64); |
10072 | break; | |
10073 | case 128: | |
b19a061a | 10074 | bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context, |
04c68496 JS |
10075 | LPFC_MQ_CNT_128); |
10076 | break; | |
10077 | } | |
10078 | list_for_each_entry(dmabuf, &mq->page_list, list) { | |
49198b37 | 10079 | memset(dmabuf->virt, 0, hw_page_size); |
b19a061a | 10080 | mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo = |
04c68496 | 10081 | putPaddrLow(dmabuf->phys); |
b19a061a | 10082 | mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi = |
04c68496 JS |
10083 | putPaddrHigh(dmabuf->phys); |
10084 | } | |
10085 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
b19a061a JS |
10086 | shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr; |
10087 | mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id, | |
10088 | &mq_create_ext->u.response); | |
10089 | if (rc != MBX_SUCCESS) { | |
10090 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
10091 | "2795 MQ_CREATE_EXT failed with " | |
10092 | "status x%x. Failback to MQ_CREATE.\n", | |
10093 | rc); | |
10094 | lpfc_mq_create_fb_init(phba, mq, mbox, cq); | |
10095 | mq_create = &mbox->u.mqe.un.mq_create; | |
10096 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10097 | shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr; | |
10098 | mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id, | |
10099 | &mq_create->u.response); | |
10100 | } | |
10101 | ||
04c68496 | 10102 | /* The IOCTL status is embedded in the mailbox subheader. */ |
04c68496 JS |
10103 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); |
10104 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10105 | if (shdr_status || shdr_add_status || rc) { | |
10106 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10107 | "2502 MQ_CREATE mailbox failed with " | |
10108 | "status x%x add_status x%x, mbx status x%x\n", | |
10109 | shdr_status, shdr_add_status, rc); | |
10110 | status = -ENXIO; | |
10111 | goto out; | |
10112 | } | |
04c68496 JS |
10113 | if (mq->queue_id == 0xFFFF) { |
10114 | status = -ENXIO; | |
10115 | goto out; | |
10116 | } | |
10117 | mq->type = LPFC_MQ; | |
10118 | mq->subtype = subtype; | |
10119 | mq->host_index = 0; | |
10120 | mq->hba_index = 0; | |
10121 | ||
10122 | /* link the mq onto the parent cq child list */ | |
10123 | list_add_tail(&mq->list, &cq->child_list); | |
10124 | out: | |
8fa38513 | 10125 | mempool_free(mbox, phba->mbox_mem_pool); |
04c68496 JS |
10126 | return status; |
10127 | } | |
10128 | ||
4f774513 JS |
10129 | /** |
10130 | * lpfc_wq_create - Create a Work Queue on the HBA | |
10131 | * @phba: HBA structure that indicates port to create a queue on. | |
10132 | * @wq: The queue structure to use to create the work queue. | |
10133 | * @cq: The completion queue to bind this work queue to. | |
10134 | * @subtype: The subtype of the work queue indicating its functionality. | |
10135 | * | |
10136 | * This function creates a work queue, as detailed in @wq, on a port, described | |
10137 | * by @phba by sending a WQ_CREATE mailbox command to the HBA. | |
10138 | * | |
10139 | * The @phba struct is used to send mailbox command to HBA. The @wq struct | |
10140 | * is used to get the entry count and entry size that are necessary to | |
10141 | * determine the number of pages to allocate and use for this queue. The @cq | |
10142 | * is used to indicate which completion queue to bind this work queue to. This | |
10143 | * function will send the WQ_CREATE mailbox command to the HBA to setup the | |
10144 | * work queue. This function is asynchronous and will wait for the mailbox | |
10145 | * command to finish before continuing. | |
10146 | * | |
10147 | * On success this function will return a zero. If unable to allocate enough | |
d439d286 JS |
10148 | * memory this function will return -ENOMEM. If the queue create mailbox command |
10149 | * fails this function will return -ENXIO. | |
4f774513 JS |
10150 | **/ |
10151 | uint32_t | |
10152 | lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq, | |
10153 | struct lpfc_queue *cq, uint32_t subtype) | |
10154 | { | |
10155 | struct lpfc_mbx_wq_create *wq_create; | |
10156 | struct lpfc_dmabuf *dmabuf; | |
10157 | LPFC_MBOXQ_t *mbox; | |
10158 | int rc, length, status = 0; | |
10159 | uint32_t shdr_status, shdr_add_status; | |
10160 | union lpfc_sli4_cfg_shdr *shdr; | |
49198b37 JS |
10161 | uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz; |
10162 | ||
10163 | if (!phba->sli4_hba.pc_sli4_params.supported) | |
10164 | hw_page_size = SLI4_PAGE_SIZE; | |
4f774513 JS |
10165 | |
10166 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10167 | if (!mbox) | |
10168 | return -ENOMEM; | |
10169 | length = (sizeof(struct lpfc_mbx_wq_create) - | |
10170 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10171 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10172 | LPFC_MBOX_OPCODE_FCOE_WQ_CREATE, | |
10173 | length, LPFC_SLI4_MBX_EMBED); | |
10174 | wq_create = &mbox->u.mqe.un.wq_create; | |
10175 | bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request, | |
10176 | wq->page_count); | |
10177 | bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request, | |
10178 | cq->queue_id); | |
10179 | list_for_each_entry(dmabuf, &wq->page_list, list) { | |
49198b37 | 10180 | memset(dmabuf->virt, 0, hw_page_size); |
4f774513 JS |
10181 | wq_create->u.request.page[dmabuf->buffer_tag].addr_lo = |
10182 | putPaddrLow(dmabuf->phys); | |
10183 | wq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
10184 | putPaddrHigh(dmabuf->phys); | |
10185 | } | |
10186 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10187 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10188 | shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr; | |
10189 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10190 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10191 | if (shdr_status || shdr_add_status || rc) { | |
10192 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10193 | "2503 WQ_CREATE mailbox failed with " | |
10194 | "status x%x add_status x%x, mbx status x%x\n", | |
10195 | shdr_status, shdr_add_status, rc); | |
10196 | status = -ENXIO; | |
10197 | goto out; | |
10198 | } | |
10199 | wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response); | |
10200 | if (wq->queue_id == 0xFFFF) { | |
10201 | status = -ENXIO; | |
10202 | goto out; | |
10203 | } | |
10204 | wq->type = LPFC_WQ; | |
10205 | wq->subtype = subtype; | |
10206 | wq->host_index = 0; | |
10207 | wq->hba_index = 0; | |
10208 | ||
10209 | /* link the wq onto the parent cq child list */ | |
10210 | list_add_tail(&wq->list, &cq->child_list); | |
10211 | out: | |
8fa38513 | 10212 | mempool_free(mbox, phba->mbox_mem_pool); |
4f774513 JS |
10213 | return status; |
10214 | } | |
10215 | ||
10216 | /** | |
10217 | * lpfc_rq_create - Create a Receive Queue on the HBA | |
10218 | * @phba: HBA structure that indicates port to create a queue on. | |
10219 | * @hrq: The queue structure to use to create the header receive queue. | |
10220 | * @drq: The queue structure to use to create the data receive queue. | |
10221 | * @cq: The completion queue to bind this work queue to. | |
10222 | * | |
10223 | * This function creates a receive buffer queue pair , as detailed in @hrq and | |
10224 | * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command | |
10225 | * to the HBA. | |
10226 | * | |
10227 | * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq | |
10228 | * struct is used to get the entry count that is necessary to determine the | |
10229 | * number of pages to use for this queue. The @cq is used to indicate which | |
10230 | * completion queue to bind received buffers that are posted to these queues to. | |
10231 | * This function will send the RQ_CREATE mailbox command to the HBA to setup the | |
10232 | * receive queue pair. This function is asynchronous and will wait for the | |
10233 | * mailbox command to finish before continuing. | |
10234 | * | |
10235 | * On success this function will return a zero. If unable to allocate enough | |
d439d286 JS |
10236 | * memory this function will return -ENOMEM. If the queue create mailbox command |
10237 | * fails this function will return -ENXIO. | |
4f774513 JS |
10238 | **/ |
10239 | uint32_t | |
10240 | lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq, | |
10241 | struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype) | |
10242 | { | |
10243 | struct lpfc_mbx_rq_create *rq_create; | |
10244 | struct lpfc_dmabuf *dmabuf; | |
10245 | LPFC_MBOXQ_t *mbox; | |
10246 | int rc, length, status = 0; | |
10247 | uint32_t shdr_status, shdr_add_status; | |
10248 | union lpfc_sli4_cfg_shdr *shdr; | |
49198b37 JS |
10249 | uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz; |
10250 | ||
10251 | if (!phba->sli4_hba.pc_sli4_params.supported) | |
10252 | hw_page_size = SLI4_PAGE_SIZE; | |
4f774513 JS |
10253 | |
10254 | if (hrq->entry_count != drq->entry_count) | |
10255 | return -EINVAL; | |
10256 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10257 | if (!mbox) | |
10258 | return -ENOMEM; | |
10259 | length = (sizeof(struct lpfc_mbx_rq_create) - | |
10260 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10261 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10262 | LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, | |
10263 | length, LPFC_SLI4_MBX_EMBED); | |
10264 | rq_create = &mbox->u.mqe.un.rq_create; | |
10265 | switch (hrq->entry_count) { | |
10266 | default: | |
10267 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10268 | "2535 Unsupported RQ count. (%d)\n", | |
10269 | hrq->entry_count); | |
10270 | if (hrq->entry_count < 512) | |
10271 | return -EINVAL; | |
10272 | /* otherwise default to smallest count (drop through) */ | |
10273 | case 512: | |
10274 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
10275 | LPFC_RQ_RING_SIZE_512); | |
10276 | break; | |
10277 | case 1024: | |
10278 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
10279 | LPFC_RQ_RING_SIZE_1024); | |
10280 | break; | |
10281 | case 2048: | |
10282 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
10283 | LPFC_RQ_RING_SIZE_2048); | |
10284 | break; | |
10285 | case 4096: | |
10286 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
10287 | LPFC_RQ_RING_SIZE_4096); | |
10288 | break; | |
10289 | } | |
10290 | bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context, | |
10291 | cq->queue_id); | |
10292 | bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request, | |
10293 | hrq->page_count); | |
10294 | bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context, | |
10295 | LPFC_HDR_BUF_SIZE); | |
10296 | list_for_each_entry(dmabuf, &hrq->page_list, list) { | |
49198b37 | 10297 | memset(dmabuf->virt, 0, hw_page_size); |
4f774513 JS |
10298 | rq_create->u.request.page[dmabuf->buffer_tag].addr_lo = |
10299 | putPaddrLow(dmabuf->phys); | |
10300 | rq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
10301 | putPaddrHigh(dmabuf->phys); | |
10302 | } | |
10303 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10304 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10305 | shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr; | |
10306 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10307 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10308 | if (shdr_status || shdr_add_status || rc) { | |
10309 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10310 | "2504 RQ_CREATE mailbox failed with " | |
10311 | "status x%x add_status x%x, mbx status x%x\n", | |
10312 | shdr_status, shdr_add_status, rc); | |
10313 | status = -ENXIO; | |
10314 | goto out; | |
10315 | } | |
10316 | hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response); | |
10317 | if (hrq->queue_id == 0xFFFF) { | |
10318 | status = -ENXIO; | |
10319 | goto out; | |
10320 | } | |
10321 | hrq->type = LPFC_HRQ; | |
10322 | hrq->subtype = subtype; | |
10323 | hrq->host_index = 0; | |
10324 | hrq->hba_index = 0; | |
10325 | ||
10326 | /* now create the data queue */ | |
10327 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10328 | LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, | |
10329 | length, LPFC_SLI4_MBX_EMBED); | |
10330 | switch (drq->entry_count) { | |
10331 | default: | |
10332 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10333 | "2536 Unsupported RQ count. (%d)\n", | |
10334 | drq->entry_count); | |
10335 | if (drq->entry_count < 512) | |
10336 | return -EINVAL; | |
10337 | /* otherwise default to smallest count (drop through) */ | |
10338 | case 512: | |
10339 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
10340 | LPFC_RQ_RING_SIZE_512); | |
10341 | break; | |
10342 | case 1024: | |
10343 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
10344 | LPFC_RQ_RING_SIZE_1024); | |
10345 | break; | |
10346 | case 2048: | |
10347 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
10348 | LPFC_RQ_RING_SIZE_2048); | |
10349 | break; | |
10350 | case 4096: | |
10351 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
10352 | LPFC_RQ_RING_SIZE_4096); | |
10353 | break; | |
10354 | } | |
10355 | bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context, | |
10356 | cq->queue_id); | |
10357 | bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request, | |
10358 | drq->page_count); | |
10359 | bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context, | |
10360 | LPFC_DATA_BUF_SIZE); | |
10361 | list_for_each_entry(dmabuf, &drq->page_list, list) { | |
10362 | rq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
10363 | putPaddrLow(dmabuf->phys); | |
10364 | rq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
10365 | putPaddrHigh(dmabuf->phys); | |
10366 | } | |
10367 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10368 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10369 | shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr; | |
10370 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10371 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10372 | if (shdr_status || shdr_add_status || rc) { | |
10373 | status = -ENXIO; | |
10374 | goto out; | |
10375 | } | |
10376 | drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response); | |
10377 | if (drq->queue_id == 0xFFFF) { | |
10378 | status = -ENXIO; | |
10379 | goto out; | |
10380 | } | |
10381 | drq->type = LPFC_DRQ; | |
10382 | drq->subtype = subtype; | |
10383 | drq->host_index = 0; | |
10384 | drq->hba_index = 0; | |
10385 | ||
10386 | /* link the header and data RQs onto the parent cq child list */ | |
10387 | list_add_tail(&hrq->list, &cq->child_list); | |
10388 | list_add_tail(&drq->list, &cq->child_list); | |
10389 | ||
10390 | out: | |
8fa38513 | 10391 | mempool_free(mbox, phba->mbox_mem_pool); |
4f774513 JS |
10392 | return status; |
10393 | } | |
10394 | ||
10395 | /** | |
10396 | * lpfc_eq_destroy - Destroy an event Queue on the HBA | |
10397 | * @eq: The queue structure associated with the queue to destroy. | |
10398 | * | |
10399 | * This function destroys a queue, as detailed in @eq by sending an mailbox | |
10400 | * command, specific to the type of queue, to the HBA. | |
10401 | * | |
10402 | * The @eq struct is used to get the queue ID of the queue to destroy. | |
10403 | * | |
10404 | * On success this function will return a zero. If the queue destroy mailbox | |
d439d286 | 10405 | * command fails this function will return -ENXIO. |
4f774513 JS |
10406 | **/ |
10407 | uint32_t | |
10408 | lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq) | |
10409 | { | |
10410 | LPFC_MBOXQ_t *mbox; | |
10411 | int rc, length, status = 0; | |
10412 | uint32_t shdr_status, shdr_add_status; | |
10413 | union lpfc_sli4_cfg_shdr *shdr; | |
10414 | ||
10415 | if (!eq) | |
10416 | return -ENODEV; | |
10417 | mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL); | |
10418 | if (!mbox) | |
10419 | return -ENOMEM; | |
10420 | length = (sizeof(struct lpfc_mbx_eq_destroy) - | |
10421 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10422 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
10423 | LPFC_MBOX_OPCODE_EQ_DESTROY, | |
10424 | length, LPFC_SLI4_MBX_EMBED); | |
10425 | bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request, | |
10426 | eq->queue_id); | |
10427 | mbox->vport = eq->phba->pport; | |
10428 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10429 | ||
10430 | rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL); | |
10431 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10432 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10433 | &mbox->u.mqe.un.eq_destroy.header.cfg_shdr; | |
10434 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10435 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10436 | if (shdr_status || shdr_add_status || rc) { | |
10437 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10438 | "2505 EQ_DESTROY mailbox failed with " | |
10439 | "status x%x add_status x%x, mbx status x%x\n", | |
10440 | shdr_status, shdr_add_status, rc); | |
10441 | status = -ENXIO; | |
10442 | } | |
10443 | ||
10444 | /* Remove eq from any list */ | |
10445 | list_del_init(&eq->list); | |
8fa38513 | 10446 | mempool_free(mbox, eq->phba->mbox_mem_pool); |
4f774513 JS |
10447 | return status; |
10448 | } | |
10449 | ||
10450 | /** | |
10451 | * lpfc_cq_destroy - Destroy a Completion Queue on the HBA | |
10452 | * @cq: The queue structure associated with the queue to destroy. | |
10453 | * | |
10454 | * This function destroys a queue, as detailed in @cq by sending an mailbox | |
10455 | * command, specific to the type of queue, to the HBA. | |
10456 | * | |
10457 | * The @cq struct is used to get the queue ID of the queue to destroy. | |
10458 | * | |
10459 | * On success this function will return a zero. If the queue destroy mailbox | |
d439d286 | 10460 | * command fails this function will return -ENXIO. |
4f774513 JS |
10461 | **/ |
10462 | uint32_t | |
10463 | lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq) | |
10464 | { | |
10465 | LPFC_MBOXQ_t *mbox; | |
10466 | int rc, length, status = 0; | |
10467 | uint32_t shdr_status, shdr_add_status; | |
10468 | union lpfc_sli4_cfg_shdr *shdr; | |
10469 | ||
10470 | if (!cq) | |
10471 | return -ENODEV; | |
10472 | mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL); | |
10473 | if (!mbox) | |
10474 | return -ENOMEM; | |
10475 | length = (sizeof(struct lpfc_mbx_cq_destroy) - | |
10476 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10477 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
10478 | LPFC_MBOX_OPCODE_CQ_DESTROY, | |
10479 | length, LPFC_SLI4_MBX_EMBED); | |
10480 | bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request, | |
10481 | cq->queue_id); | |
10482 | mbox->vport = cq->phba->pport; | |
10483 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10484 | rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL); | |
10485 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10486 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10487 | &mbox->u.mqe.un.wq_create.header.cfg_shdr; | |
10488 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10489 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10490 | if (shdr_status || shdr_add_status || rc) { | |
10491 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10492 | "2506 CQ_DESTROY mailbox failed with " | |
10493 | "status x%x add_status x%x, mbx status x%x\n", | |
10494 | shdr_status, shdr_add_status, rc); | |
10495 | status = -ENXIO; | |
10496 | } | |
10497 | /* Remove cq from any list */ | |
10498 | list_del_init(&cq->list); | |
8fa38513 | 10499 | mempool_free(mbox, cq->phba->mbox_mem_pool); |
4f774513 JS |
10500 | return status; |
10501 | } | |
10502 | ||
04c68496 JS |
10503 | /** |
10504 | * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA | |
10505 | * @qm: The queue structure associated with the queue to destroy. | |
10506 | * | |
10507 | * This function destroys a queue, as detailed in @mq by sending an mailbox | |
10508 | * command, specific to the type of queue, to the HBA. | |
10509 | * | |
10510 | * The @mq struct is used to get the queue ID of the queue to destroy. | |
10511 | * | |
10512 | * On success this function will return a zero. If the queue destroy mailbox | |
d439d286 | 10513 | * command fails this function will return -ENXIO. |
04c68496 JS |
10514 | **/ |
10515 | uint32_t | |
10516 | lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq) | |
10517 | { | |
10518 | LPFC_MBOXQ_t *mbox; | |
10519 | int rc, length, status = 0; | |
10520 | uint32_t shdr_status, shdr_add_status; | |
10521 | union lpfc_sli4_cfg_shdr *shdr; | |
10522 | ||
10523 | if (!mq) | |
10524 | return -ENODEV; | |
10525 | mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL); | |
10526 | if (!mbox) | |
10527 | return -ENOMEM; | |
10528 | length = (sizeof(struct lpfc_mbx_mq_destroy) - | |
10529 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10530 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
10531 | LPFC_MBOX_OPCODE_MQ_DESTROY, | |
10532 | length, LPFC_SLI4_MBX_EMBED); | |
10533 | bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request, | |
10534 | mq->queue_id); | |
10535 | mbox->vport = mq->phba->pport; | |
10536 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10537 | rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL); | |
10538 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10539 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10540 | &mbox->u.mqe.un.mq_destroy.header.cfg_shdr; | |
10541 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10542 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10543 | if (shdr_status || shdr_add_status || rc) { | |
10544 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10545 | "2507 MQ_DESTROY mailbox failed with " | |
10546 | "status x%x add_status x%x, mbx status x%x\n", | |
10547 | shdr_status, shdr_add_status, rc); | |
10548 | status = -ENXIO; | |
10549 | } | |
10550 | /* Remove mq from any list */ | |
10551 | list_del_init(&mq->list); | |
8fa38513 | 10552 | mempool_free(mbox, mq->phba->mbox_mem_pool); |
04c68496 JS |
10553 | return status; |
10554 | } | |
10555 | ||
4f774513 JS |
10556 | /** |
10557 | * lpfc_wq_destroy - Destroy a Work Queue on the HBA | |
10558 | * @wq: The queue structure associated with the queue to destroy. | |
10559 | * | |
10560 | * This function destroys a queue, as detailed in @wq by sending an mailbox | |
10561 | * command, specific to the type of queue, to the HBA. | |
10562 | * | |
10563 | * The @wq struct is used to get the queue ID of the queue to destroy. | |
10564 | * | |
10565 | * On success this function will return a zero. If the queue destroy mailbox | |
d439d286 | 10566 | * command fails this function will return -ENXIO. |
4f774513 JS |
10567 | **/ |
10568 | uint32_t | |
10569 | lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq) | |
10570 | { | |
10571 | LPFC_MBOXQ_t *mbox; | |
10572 | int rc, length, status = 0; | |
10573 | uint32_t shdr_status, shdr_add_status; | |
10574 | union lpfc_sli4_cfg_shdr *shdr; | |
10575 | ||
10576 | if (!wq) | |
10577 | return -ENODEV; | |
10578 | mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL); | |
10579 | if (!mbox) | |
10580 | return -ENOMEM; | |
10581 | length = (sizeof(struct lpfc_mbx_wq_destroy) - | |
10582 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10583 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10584 | LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY, | |
10585 | length, LPFC_SLI4_MBX_EMBED); | |
10586 | bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request, | |
10587 | wq->queue_id); | |
10588 | mbox->vport = wq->phba->pport; | |
10589 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10590 | rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL); | |
10591 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10592 | &mbox->u.mqe.un.wq_destroy.header.cfg_shdr; | |
10593 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10594 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10595 | if (shdr_status || shdr_add_status || rc) { | |
10596 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10597 | "2508 WQ_DESTROY mailbox failed with " | |
10598 | "status x%x add_status x%x, mbx status x%x\n", | |
10599 | shdr_status, shdr_add_status, rc); | |
10600 | status = -ENXIO; | |
10601 | } | |
10602 | /* Remove wq from any list */ | |
10603 | list_del_init(&wq->list); | |
8fa38513 | 10604 | mempool_free(mbox, wq->phba->mbox_mem_pool); |
4f774513 JS |
10605 | return status; |
10606 | } | |
10607 | ||
10608 | /** | |
10609 | * lpfc_rq_destroy - Destroy a Receive Queue on the HBA | |
10610 | * @rq: The queue structure associated with the queue to destroy. | |
10611 | * | |
10612 | * This function destroys a queue, as detailed in @rq by sending an mailbox | |
10613 | * command, specific to the type of queue, to the HBA. | |
10614 | * | |
10615 | * The @rq struct is used to get the queue ID of the queue to destroy. | |
10616 | * | |
10617 | * On success this function will return a zero. If the queue destroy mailbox | |
d439d286 | 10618 | * command fails this function will return -ENXIO. |
4f774513 JS |
10619 | **/ |
10620 | uint32_t | |
10621 | lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq, | |
10622 | struct lpfc_queue *drq) | |
10623 | { | |
10624 | LPFC_MBOXQ_t *mbox; | |
10625 | int rc, length, status = 0; | |
10626 | uint32_t shdr_status, shdr_add_status; | |
10627 | union lpfc_sli4_cfg_shdr *shdr; | |
10628 | ||
10629 | if (!hrq || !drq) | |
10630 | return -ENODEV; | |
10631 | mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL); | |
10632 | if (!mbox) | |
10633 | return -ENOMEM; | |
10634 | length = (sizeof(struct lpfc_mbx_rq_destroy) - | |
10635 | sizeof(struct mbox_header)); | |
10636 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10637 | LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY, | |
10638 | length, LPFC_SLI4_MBX_EMBED); | |
10639 | bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request, | |
10640 | hrq->queue_id); | |
10641 | mbox->vport = hrq->phba->pport; | |
10642 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10643 | rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL); | |
10644 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10645 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10646 | &mbox->u.mqe.un.rq_destroy.header.cfg_shdr; | |
10647 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10648 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10649 | if (shdr_status || shdr_add_status || rc) { | |
10650 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10651 | "2509 RQ_DESTROY mailbox failed with " | |
10652 | "status x%x add_status x%x, mbx status x%x\n", | |
10653 | shdr_status, shdr_add_status, rc); | |
10654 | if (rc != MBX_TIMEOUT) | |
10655 | mempool_free(mbox, hrq->phba->mbox_mem_pool); | |
10656 | return -ENXIO; | |
10657 | } | |
10658 | bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request, | |
10659 | drq->queue_id); | |
10660 | rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL); | |
10661 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10662 | &mbox->u.mqe.un.rq_destroy.header.cfg_shdr; | |
10663 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10664 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10665 | if (shdr_status || shdr_add_status || rc) { | |
10666 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10667 | "2510 RQ_DESTROY mailbox failed with " | |
10668 | "status x%x add_status x%x, mbx status x%x\n", | |
10669 | shdr_status, shdr_add_status, rc); | |
10670 | status = -ENXIO; | |
10671 | } | |
10672 | list_del_init(&hrq->list); | |
10673 | list_del_init(&drq->list); | |
8fa38513 | 10674 | mempool_free(mbox, hrq->phba->mbox_mem_pool); |
4f774513 JS |
10675 | return status; |
10676 | } | |
10677 | ||
10678 | /** | |
10679 | * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA | |
10680 | * @phba: The virtual port for which this call being executed. | |
10681 | * @pdma_phys_addr0: Physical address of the 1st SGL page. | |
10682 | * @pdma_phys_addr1: Physical address of the 2nd SGL page. | |
10683 | * @xritag: the xritag that ties this io to the SGL pages. | |
10684 | * | |
10685 | * This routine will post the sgl pages for the IO that has the xritag | |
10686 | * that is in the iocbq structure. The xritag is assigned during iocbq | |
10687 | * creation and persists for as long as the driver is loaded. | |
10688 | * if the caller has fewer than 256 scatter gather segments to map then | |
10689 | * pdma_phys_addr1 should be 0. | |
10690 | * If the caller needs to map more than 256 scatter gather segment then | |
10691 | * pdma_phys_addr1 should be a valid physical address. | |
10692 | * physical address for SGLs must be 64 byte aligned. | |
10693 | * If you are going to map 2 SGL's then the first one must have 256 entries | |
10694 | * the second sgl can have between 1 and 256 entries. | |
10695 | * | |
10696 | * Return codes: | |
10697 | * 0 - Success | |
10698 | * -ENXIO, -ENOMEM - Failure | |
10699 | **/ | |
10700 | int | |
10701 | lpfc_sli4_post_sgl(struct lpfc_hba *phba, | |
10702 | dma_addr_t pdma_phys_addr0, | |
10703 | dma_addr_t pdma_phys_addr1, | |
10704 | uint16_t xritag) | |
10705 | { | |
10706 | struct lpfc_mbx_post_sgl_pages *post_sgl_pages; | |
10707 | LPFC_MBOXQ_t *mbox; | |
10708 | int rc; | |
10709 | uint32_t shdr_status, shdr_add_status; | |
10710 | union lpfc_sli4_cfg_shdr *shdr; | |
10711 | ||
10712 | if (xritag == NO_XRI) { | |
10713 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10714 | "0364 Invalid param:\n"); | |
10715 | return -EINVAL; | |
10716 | } | |
10717 | ||
10718 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10719 | if (!mbox) | |
10720 | return -ENOMEM; | |
10721 | ||
10722 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10723 | LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, | |
10724 | sizeof(struct lpfc_mbx_post_sgl_pages) - | |
10725 | sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED); | |
10726 | ||
10727 | post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *) | |
10728 | &mbox->u.mqe.un.post_sgl_pages; | |
10729 | bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag); | |
10730 | bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1); | |
10731 | ||
10732 | post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo = | |
10733 | cpu_to_le32(putPaddrLow(pdma_phys_addr0)); | |
10734 | post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi = | |
10735 | cpu_to_le32(putPaddrHigh(pdma_phys_addr0)); | |
10736 | ||
10737 | post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo = | |
10738 | cpu_to_le32(putPaddrLow(pdma_phys_addr1)); | |
10739 | post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi = | |
10740 | cpu_to_le32(putPaddrHigh(pdma_phys_addr1)); | |
10741 | if (!phba->sli4_hba.intr_enable) | |
10742 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10743 | else | |
10744 | rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); | |
10745 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10746 | shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr; | |
10747 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10748 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10749 | if (rc != MBX_TIMEOUT) | |
10750 | mempool_free(mbox, phba->mbox_mem_pool); | |
10751 | if (shdr_status || shdr_add_status || rc) { | |
10752 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10753 | "2511 POST_SGL mailbox failed with " | |
10754 | "status x%x add_status x%x, mbx status x%x\n", | |
10755 | shdr_status, shdr_add_status, rc); | |
10756 | rc = -ENXIO; | |
10757 | } | |
10758 | return 0; | |
10759 | } | |
4f774513 JS |
10760 | |
10761 | /** | |
10762 | * lpfc_sli4_next_xritag - Get an xritag for the io | |
10763 | * @phba: Pointer to HBA context object. | |
10764 | * | |
10765 | * This function gets an xritag for the iocb. If there is no unused xritag | |
10766 | * it will return 0xffff. | |
10767 | * The function returns the allocated xritag if successful, else returns zero. | |
10768 | * Zero is not a valid xritag. | |
10769 | * The caller is not required to hold any lock. | |
10770 | **/ | |
10771 | uint16_t | |
10772 | lpfc_sli4_next_xritag(struct lpfc_hba *phba) | |
10773 | { | |
10774 | uint16_t xritag; | |
10775 | ||
10776 | spin_lock_irq(&phba->hbalock); | |
10777 | xritag = phba->sli4_hba.next_xri; | |
10778 | if ((xritag != (uint16_t) -1) && xritag < | |
10779 | (phba->sli4_hba.max_cfg_param.max_xri | |
10780 | + phba->sli4_hba.max_cfg_param.xri_base)) { | |
10781 | phba->sli4_hba.next_xri++; | |
10782 | phba->sli4_hba.max_cfg_param.xri_used++; | |
10783 | spin_unlock_irq(&phba->hbalock); | |
10784 | return xritag; | |
10785 | } | |
10786 | spin_unlock_irq(&phba->hbalock); | |
6a9c52cf | 10787 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
4f774513 JS |
10788 | "2004 Failed to allocate XRI.last XRITAG is %d" |
10789 | " Max XRI is %d, Used XRI is %d\n", | |
10790 | phba->sli4_hba.next_xri, | |
10791 | phba->sli4_hba.max_cfg_param.max_xri, | |
10792 | phba->sli4_hba.max_cfg_param.xri_used); | |
10793 | return -1; | |
10794 | } | |
10795 | ||
10796 | /** | |
10797 | * lpfc_sli4_post_sgl_list - post a block of sgl list to the firmware. | |
10798 | * @phba: pointer to lpfc hba data structure. | |
10799 | * | |
10800 | * This routine is invoked to post a block of driver's sgl pages to the | |
10801 | * HBA using non-embedded mailbox command. No Lock is held. This routine | |
10802 | * is only called when the driver is loading and after all IO has been | |
10803 | * stopped. | |
10804 | **/ | |
10805 | int | |
10806 | lpfc_sli4_post_sgl_list(struct lpfc_hba *phba) | |
10807 | { | |
10808 | struct lpfc_sglq *sglq_entry; | |
10809 | struct lpfc_mbx_post_uembed_sgl_page1 *sgl; | |
10810 | struct sgl_page_pairs *sgl_pg_pairs; | |
10811 | void *viraddr; | |
10812 | LPFC_MBOXQ_t *mbox; | |
10813 | uint32_t reqlen, alloclen, pg_pairs; | |
10814 | uint32_t mbox_tmo; | |
10815 | uint16_t xritag_start = 0; | |
10816 | int els_xri_cnt, rc = 0; | |
10817 | uint32_t shdr_status, shdr_add_status; | |
10818 | union lpfc_sli4_cfg_shdr *shdr; | |
10819 | ||
10820 | /* The number of sgls to be posted */ | |
10821 | els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); | |
10822 | ||
10823 | reqlen = els_xri_cnt * sizeof(struct sgl_page_pairs) + | |
10824 | sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t); | |
49198b37 | 10825 | if (reqlen > SLI4_PAGE_SIZE) { |
4f774513 JS |
10826 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
10827 | "2559 Block sgl registration required DMA " | |
10828 | "size (%d) great than a page\n", reqlen); | |
10829 | return -ENOMEM; | |
10830 | } | |
10831 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10832 | if (!mbox) { | |
10833 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10834 | "2560 Failed to allocate mbox cmd memory\n"); | |
10835 | return -ENOMEM; | |
10836 | } | |
10837 | ||
10838 | /* Allocate DMA memory and set up the non-embedded mailbox command */ | |
10839 | alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10840 | LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen, | |
10841 | LPFC_SLI4_MBX_NEMBED); | |
10842 | ||
10843 | if (alloclen < reqlen) { | |
10844 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10845 | "0285 Allocated DMA memory size (%d) is " | |
10846 | "less than the requested DMA memory " | |
10847 | "size (%d)\n", alloclen, reqlen); | |
10848 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10849 | return -ENOMEM; | |
10850 | } | |
4f774513 | 10851 | /* Get the first SGE entry from the non-embedded DMA memory */ |
4f774513 JS |
10852 | viraddr = mbox->sge_array->addr[0]; |
10853 | ||
10854 | /* Set up the SGL pages in the non-embedded DMA pages */ | |
10855 | sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr; | |
10856 | sgl_pg_pairs = &sgl->sgl_pg_pairs; | |
10857 | ||
10858 | for (pg_pairs = 0; pg_pairs < els_xri_cnt; pg_pairs++) { | |
10859 | sglq_entry = phba->sli4_hba.lpfc_els_sgl_array[pg_pairs]; | |
10860 | /* Set up the sge entry */ | |
10861 | sgl_pg_pairs->sgl_pg0_addr_lo = | |
10862 | cpu_to_le32(putPaddrLow(sglq_entry->phys)); | |
10863 | sgl_pg_pairs->sgl_pg0_addr_hi = | |
10864 | cpu_to_le32(putPaddrHigh(sglq_entry->phys)); | |
10865 | sgl_pg_pairs->sgl_pg1_addr_lo = | |
10866 | cpu_to_le32(putPaddrLow(0)); | |
10867 | sgl_pg_pairs->sgl_pg1_addr_hi = | |
10868 | cpu_to_le32(putPaddrHigh(0)); | |
10869 | /* Keep the first xritag on the list */ | |
10870 | if (pg_pairs == 0) | |
10871 | xritag_start = sglq_entry->sli4_xritag; | |
10872 | sgl_pg_pairs++; | |
10873 | } | |
10874 | bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start); | |
6a9c52cf | 10875 | bf_set(lpfc_post_sgl_pages_xricnt, sgl, els_xri_cnt); |
4f774513 JS |
10876 | /* Perform endian conversion if necessary */ |
10877 | sgl->word0 = cpu_to_le32(sgl->word0); | |
10878 | ||
10879 | if (!phba->sli4_hba.intr_enable) | |
10880 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10881 | else { | |
10882 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); | |
10883 | rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); | |
10884 | } | |
10885 | shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr; | |
10886 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10887 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10888 | if (rc != MBX_TIMEOUT) | |
10889 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10890 | if (shdr_status || shdr_add_status || rc) { | |
10891 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10892 | "2513 POST_SGL_BLOCK mailbox command failed " | |
10893 | "status x%x add_status x%x mbx status x%x\n", | |
10894 | shdr_status, shdr_add_status, rc); | |
10895 | rc = -ENXIO; | |
10896 | } | |
10897 | return rc; | |
10898 | } | |
10899 | ||
10900 | /** | |
10901 | * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware | |
10902 | * @phba: pointer to lpfc hba data structure. | |
10903 | * @sblist: pointer to scsi buffer list. | |
10904 | * @count: number of scsi buffers on the list. | |
10905 | * | |
10906 | * This routine is invoked to post a block of @count scsi sgl pages from a | |
10907 | * SCSI buffer list @sblist to the HBA using non-embedded mailbox command. | |
10908 | * No Lock is held. | |
10909 | * | |
10910 | **/ | |
10911 | int | |
10912 | lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba, struct list_head *sblist, | |
10913 | int cnt) | |
10914 | { | |
10915 | struct lpfc_scsi_buf *psb; | |
10916 | struct lpfc_mbx_post_uembed_sgl_page1 *sgl; | |
10917 | struct sgl_page_pairs *sgl_pg_pairs; | |
10918 | void *viraddr; | |
10919 | LPFC_MBOXQ_t *mbox; | |
10920 | uint32_t reqlen, alloclen, pg_pairs; | |
10921 | uint32_t mbox_tmo; | |
10922 | uint16_t xritag_start = 0; | |
10923 | int rc = 0; | |
10924 | uint32_t shdr_status, shdr_add_status; | |
10925 | dma_addr_t pdma_phys_bpl1; | |
10926 | union lpfc_sli4_cfg_shdr *shdr; | |
10927 | ||
10928 | /* Calculate the requested length of the dma memory */ | |
10929 | reqlen = cnt * sizeof(struct sgl_page_pairs) + | |
10930 | sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t); | |
49198b37 | 10931 | if (reqlen > SLI4_PAGE_SIZE) { |
4f774513 JS |
10932 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
10933 | "0217 Block sgl registration required DMA " | |
10934 | "size (%d) great than a page\n", reqlen); | |
10935 | return -ENOMEM; | |
10936 | } | |
10937 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10938 | if (!mbox) { | |
10939 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10940 | "0283 Failed to allocate mbox cmd memory\n"); | |
10941 | return -ENOMEM; | |
10942 | } | |
10943 | ||
10944 | /* Allocate DMA memory and set up the non-embedded mailbox command */ | |
10945 | alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10946 | LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen, | |
10947 | LPFC_SLI4_MBX_NEMBED); | |
10948 | ||
10949 | if (alloclen < reqlen) { | |
10950 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10951 | "2561 Allocated DMA memory size (%d) is " | |
10952 | "less than the requested DMA memory " | |
10953 | "size (%d)\n", alloclen, reqlen); | |
10954 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10955 | return -ENOMEM; | |
10956 | } | |
4f774513 | 10957 | /* Get the first SGE entry from the non-embedded DMA memory */ |
4f774513 JS |
10958 | viraddr = mbox->sge_array->addr[0]; |
10959 | ||
10960 | /* Set up the SGL pages in the non-embedded DMA pages */ | |
10961 | sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr; | |
10962 | sgl_pg_pairs = &sgl->sgl_pg_pairs; | |
10963 | ||
10964 | pg_pairs = 0; | |
10965 | list_for_each_entry(psb, sblist, list) { | |
10966 | /* Set up the sge entry */ | |
10967 | sgl_pg_pairs->sgl_pg0_addr_lo = | |
10968 | cpu_to_le32(putPaddrLow(psb->dma_phys_bpl)); | |
10969 | sgl_pg_pairs->sgl_pg0_addr_hi = | |
10970 | cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl)); | |
10971 | if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE) | |
10972 | pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE; | |
10973 | else | |
10974 | pdma_phys_bpl1 = 0; | |
10975 | sgl_pg_pairs->sgl_pg1_addr_lo = | |
10976 | cpu_to_le32(putPaddrLow(pdma_phys_bpl1)); | |
10977 | sgl_pg_pairs->sgl_pg1_addr_hi = | |
10978 | cpu_to_le32(putPaddrHigh(pdma_phys_bpl1)); | |
10979 | /* Keep the first xritag on the list */ | |
10980 | if (pg_pairs == 0) | |
10981 | xritag_start = psb->cur_iocbq.sli4_xritag; | |
10982 | sgl_pg_pairs++; | |
10983 | pg_pairs++; | |
10984 | } | |
10985 | bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start); | |
10986 | bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs); | |
10987 | /* Perform endian conversion if necessary */ | |
10988 | sgl->word0 = cpu_to_le32(sgl->word0); | |
10989 | ||
10990 | if (!phba->sli4_hba.intr_enable) | |
10991 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10992 | else { | |
10993 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); | |
10994 | rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); | |
10995 | } | |
10996 | shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr; | |
10997 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10998 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10999 | if (rc != MBX_TIMEOUT) | |
11000 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
11001 | if (shdr_status || shdr_add_status || rc) { | |
11002 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11003 | "2564 POST_SGL_BLOCK mailbox command failed " | |
11004 | "status x%x add_status x%x mbx status x%x\n", | |
11005 | shdr_status, shdr_add_status, rc); | |
11006 | rc = -ENXIO; | |
11007 | } | |
11008 | return rc; | |
11009 | } | |
11010 | ||
11011 | /** | |
11012 | * lpfc_fc_frame_check - Check that this frame is a valid frame to handle | |
11013 | * @phba: pointer to lpfc_hba struct that the frame was received on | |
11014 | * @fc_hdr: A pointer to the FC Header data (In Big Endian Format) | |
11015 | * | |
11016 | * This function checks the fields in the @fc_hdr to see if the FC frame is a | |
11017 | * valid type of frame that the LPFC driver will handle. This function will | |
11018 | * return a zero if the frame is a valid frame or a non zero value when the | |
11019 | * frame does not pass the check. | |
11020 | **/ | |
11021 | static int | |
11022 | lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr) | |
11023 | { | |
11024 | char *rctl_names[] = FC_RCTL_NAMES_INIT; | |
11025 | char *type_names[] = FC_TYPE_NAMES_INIT; | |
11026 | struct fc_vft_header *fc_vft_hdr; | |
11027 | ||
11028 | switch (fc_hdr->fh_r_ctl) { | |
11029 | case FC_RCTL_DD_UNCAT: /* uncategorized information */ | |
11030 | case FC_RCTL_DD_SOL_DATA: /* solicited data */ | |
11031 | case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */ | |
11032 | case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */ | |
11033 | case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */ | |
11034 | case FC_RCTL_DD_DATA_DESC: /* data descriptor */ | |
11035 | case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */ | |
11036 | case FC_RCTL_DD_CMD_STATUS: /* command status */ | |
11037 | case FC_RCTL_ELS_REQ: /* extended link services request */ | |
11038 | case FC_RCTL_ELS_REP: /* extended link services reply */ | |
11039 | case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */ | |
11040 | case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */ | |
11041 | case FC_RCTL_BA_NOP: /* basic link service NOP */ | |
11042 | case FC_RCTL_BA_ABTS: /* basic link service abort */ | |
11043 | case FC_RCTL_BA_RMC: /* remove connection */ | |
11044 | case FC_RCTL_BA_ACC: /* basic accept */ | |
11045 | case FC_RCTL_BA_RJT: /* basic reject */ | |
11046 | case FC_RCTL_BA_PRMT: | |
11047 | case FC_RCTL_ACK_1: /* acknowledge_1 */ | |
11048 | case FC_RCTL_ACK_0: /* acknowledge_0 */ | |
11049 | case FC_RCTL_P_RJT: /* port reject */ | |
11050 | case FC_RCTL_F_RJT: /* fabric reject */ | |
11051 | case FC_RCTL_P_BSY: /* port busy */ | |
11052 | case FC_RCTL_F_BSY: /* fabric busy to data frame */ | |
11053 | case FC_RCTL_F_BSYL: /* fabric busy to link control frame */ | |
11054 | case FC_RCTL_LCR: /* link credit reset */ | |
11055 | case FC_RCTL_END: /* end */ | |
11056 | break; | |
11057 | case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */ | |
11058 | fc_vft_hdr = (struct fc_vft_header *)fc_hdr; | |
11059 | fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1]; | |
11060 | return lpfc_fc_frame_check(phba, fc_hdr); | |
11061 | default: | |
11062 | goto drop; | |
11063 | } | |
11064 | switch (fc_hdr->fh_type) { | |
11065 | case FC_TYPE_BLS: | |
11066 | case FC_TYPE_ELS: | |
11067 | case FC_TYPE_FCP: | |
11068 | case FC_TYPE_CT: | |
11069 | break; | |
11070 | case FC_TYPE_IP: | |
11071 | case FC_TYPE_ILS: | |
11072 | default: | |
11073 | goto drop; | |
11074 | } | |
11075 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
11076 | "2538 Received frame rctl:%s type:%s\n", | |
11077 | rctl_names[fc_hdr->fh_r_ctl], | |
11078 | type_names[fc_hdr->fh_type]); | |
11079 | return 0; | |
11080 | drop: | |
11081 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, | |
11082 | "2539 Dropped frame rctl:%s type:%s\n", | |
11083 | rctl_names[fc_hdr->fh_r_ctl], | |
11084 | type_names[fc_hdr->fh_type]); | |
11085 | return 1; | |
11086 | } | |
11087 | ||
11088 | /** | |
11089 | * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame | |
11090 | * @fc_hdr: A pointer to the FC Header data (In Big Endian Format) | |
11091 | * | |
11092 | * This function processes the FC header to retrieve the VFI from the VF | |
11093 | * header, if one exists. This function will return the VFI if one exists | |
11094 | * or 0 if no VSAN Header exists. | |
11095 | **/ | |
11096 | static uint32_t | |
11097 | lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr) | |
11098 | { | |
11099 | struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr; | |
11100 | ||
11101 | if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH) | |
11102 | return 0; | |
11103 | return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr); | |
11104 | } | |
11105 | ||
11106 | /** | |
11107 | * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to | |
11108 | * @phba: Pointer to the HBA structure to search for the vport on | |
11109 | * @fc_hdr: A pointer to the FC Header data (In Big Endian Format) | |
11110 | * @fcfi: The FC Fabric ID that the frame came from | |
11111 | * | |
11112 | * This function searches the @phba for a vport that matches the content of the | |
11113 | * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the | |
11114 | * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function | |
11115 | * returns the matching vport pointer or NULL if unable to match frame to a | |
11116 | * vport. | |
11117 | **/ | |
11118 | static struct lpfc_vport * | |
11119 | lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr, | |
11120 | uint16_t fcfi) | |
11121 | { | |
11122 | struct lpfc_vport **vports; | |
11123 | struct lpfc_vport *vport = NULL; | |
11124 | int i; | |
11125 | uint32_t did = (fc_hdr->fh_d_id[0] << 16 | | |
11126 | fc_hdr->fh_d_id[1] << 8 | | |
11127 | fc_hdr->fh_d_id[2]); | |
11128 | ||
11129 | vports = lpfc_create_vport_work_array(phba); | |
11130 | if (vports != NULL) | |
11131 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { | |
11132 | if (phba->fcf.fcfi == fcfi && | |
11133 | vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) && | |
11134 | vports[i]->fc_myDID == did) { | |
11135 | vport = vports[i]; | |
11136 | break; | |
11137 | } | |
11138 | } | |
11139 | lpfc_destroy_vport_work_array(phba, vports); | |
11140 | return vport; | |
11141 | } | |
11142 | ||
45ed1190 JS |
11143 | /** |
11144 | * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp | |
11145 | * @vport: The vport to work on. | |
11146 | * | |
11147 | * This function updates the receive sequence time stamp for this vport. The | |
11148 | * receive sequence time stamp indicates the time that the last frame of the | |
11149 | * the sequence that has been idle for the longest amount of time was received. | |
11150 | * the driver uses this time stamp to indicate if any received sequences have | |
11151 | * timed out. | |
11152 | **/ | |
11153 | void | |
11154 | lpfc_update_rcv_time_stamp(struct lpfc_vport *vport) | |
11155 | { | |
11156 | struct lpfc_dmabuf *h_buf; | |
11157 | struct hbq_dmabuf *dmabuf = NULL; | |
11158 | ||
11159 | /* get the oldest sequence on the rcv list */ | |
11160 | h_buf = list_get_first(&vport->rcv_buffer_list, | |
11161 | struct lpfc_dmabuf, list); | |
11162 | if (!h_buf) | |
11163 | return; | |
11164 | dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf); | |
11165 | vport->rcv_buffer_time_stamp = dmabuf->time_stamp; | |
11166 | } | |
11167 | ||
11168 | /** | |
11169 | * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences. | |
11170 | * @vport: The vport that the received sequences were sent to. | |
11171 | * | |
11172 | * This function cleans up all outstanding received sequences. This is called | |
11173 | * by the driver when a link event or user action invalidates all the received | |
11174 | * sequences. | |
11175 | **/ | |
11176 | void | |
11177 | lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport) | |
11178 | { | |
11179 | struct lpfc_dmabuf *h_buf, *hnext; | |
11180 | struct lpfc_dmabuf *d_buf, *dnext; | |
11181 | struct hbq_dmabuf *dmabuf = NULL; | |
11182 | ||
11183 | /* start with the oldest sequence on the rcv list */ | |
11184 | list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) { | |
11185 | dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf); | |
11186 | list_del_init(&dmabuf->hbuf.list); | |
11187 | list_for_each_entry_safe(d_buf, dnext, | |
11188 | &dmabuf->dbuf.list, list) { | |
11189 | list_del_init(&d_buf->list); | |
11190 | lpfc_in_buf_free(vport->phba, d_buf); | |
11191 | } | |
11192 | lpfc_in_buf_free(vport->phba, &dmabuf->dbuf); | |
11193 | } | |
11194 | } | |
11195 | ||
11196 | /** | |
11197 | * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences. | |
11198 | * @vport: The vport that the received sequences were sent to. | |
11199 | * | |
11200 | * This function determines whether any received sequences have timed out by | |
11201 | * first checking the vport's rcv_buffer_time_stamp. If this time_stamp | |
11202 | * indicates that there is at least one timed out sequence this routine will | |
11203 | * go through the received sequences one at a time from most inactive to most | |
11204 | * active to determine which ones need to be cleaned up. Once it has determined | |
11205 | * that a sequence needs to be cleaned up it will simply free up the resources | |
11206 | * without sending an abort. | |
11207 | **/ | |
11208 | void | |
11209 | lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport) | |
11210 | { | |
11211 | struct lpfc_dmabuf *h_buf, *hnext; | |
11212 | struct lpfc_dmabuf *d_buf, *dnext; | |
11213 | struct hbq_dmabuf *dmabuf = NULL; | |
11214 | unsigned long timeout; | |
11215 | int abort_count = 0; | |
11216 | ||
11217 | timeout = (msecs_to_jiffies(vport->phba->fc_edtov) + | |
11218 | vport->rcv_buffer_time_stamp); | |
11219 | if (list_empty(&vport->rcv_buffer_list) || | |
11220 | time_before(jiffies, timeout)) | |
11221 | return; | |
11222 | /* start with the oldest sequence on the rcv list */ | |
11223 | list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) { | |
11224 | dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf); | |
11225 | timeout = (msecs_to_jiffies(vport->phba->fc_edtov) + | |
11226 | dmabuf->time_stamp); | |
11227 | if (time_before(jiffies, timeout)) | |
11228 | break; | |
11229 | abort_count++; | |
11230 | list_del_init(&dmabuf->hbuf.list); | |
11231 | list_for_each_entry_safe(d_buf, dnext, | |
11232 | &dmabuf->dbuf.list, list) { | |
11233 | list_del_init(&d_buf->list); | |
11234 | lpfc_in_buf_free(vport->phba, d_buf); | |
11235 | } | |
11236 | lpfc_in_buf_free(vport->phba, &dmabuf->dbuf); | |
11237 | } | |
11238 | if (abort_count) | |
11239 | lpfc_update_rcv_time_stamp(vport); | |
11240 | } | |
11241 | ||
4f774513 JS |
11242 | /** |
11243 | * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences | |
11244 | * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame | |
11245 | * | |
11246 | * This function searches through the existing incomplete sequences that have | |
11247 | * been sent to this @vport. If the frame matches one of the incomplete | |
11248 | * sequences then the dbuf in the @dmabuf is added to the list of frames that | |
11249 | * make up that sequence. If no sequence is found that matches this frame then | |
11250 | * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list | |
11251 | * This function returns a pointer to the first dmabuf in the sequence list that | |
11252 | * the frame was linked to. | |
11253 | **/ | |
11254 | static struct hbq_dmabuf * | |
11255 | lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf) | |
11256 | { | |
11257 | struct fc_frame_header *new_hdr; | |
11258 | struct fc_frame_header *temp_hdr; | |
11259 | struct lpfc_dmabuf *d_buf; | |
11260 | struct lpfc_dmabuf *h_buf; | |
11261 | struct hbq_dmabuf *seq_dmabuf = NULL; | |
11262 | struct hbq_dmabuf *temp_dmabuf = NULL; | |
11263 | ||
4d9ab994 | 11264 | INIT_LIST_HEAD(&dmabuf->dbuf.list); |
45ed1190 | 11265 | dmabuf->time_stamp = jiffies; |
4f774513 JS |
11266 | new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt; |
11267 | /* Use the hdr_buf to find the sequence that this frame belongs to */ | |
11268 | list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) { | |
11269 | temp_hdr = (struct fc_frame_header *)h_buf->virt; | |
11270 | if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) || | |
11271 | (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) || | |
11272 | (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3))) | |
11273 | continue; | |
11274 | /* found a pending sequence that matches this frame */ | |
11275 | seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf); | |
11276 | break; | |
11277 | } | |
11278 | if (!seq_dmabuf) { | |
11279 | /* | |
11280 | * This indicates first frame received for this sequence. | |
11281 | * Queue the buffer on the vport's rcv_buffer_list. | |
11282 | */ | |
11283 | list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list); | |
45ed1190 | 11284 | lpfc_update_rcv_time_stamp(vport); |
4f774513 JS |
11285 | return dmabuf; |
11286 | } | |
11287 | temp_hdr = seq_dmabuf->hbuf.virt; | |
eeead811 JS |
11288 | if (be16_to_cpu(new_hdr->fh_seq_cnt) < |
11289 | be16_to_cpu(temp_hdr->fh_seq_cnt)) { | |
4d9ab994 JS |
11290 | list_del_init(&seq_dmabuf->hbuf.list); |
11291 | list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list); | |
11292 | list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list); | |
45ed1190 | 11293 | lpfc_update_rcv_time_stamp(vport); |
4f774513 JS |
11294 | return dmabuf; |
11295 | } | |
45ed1190 JS |
11296 | /* move this sequence to the tail to indicate a young sequence */ |
11297 | list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list); | |
11298 | seq_dmabuf->time_stamp = jiffies; | |
11299 | lpfc_update_rcv_time_stamp(vport); | |
eeead811 JS |
11300 | if (list_empty(&seq_dmabuf->dbuf.list)) { |
11301 | temp_hdr = dmabuf->hbuf.virt; | |
11302 | list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list); | |
11303 | return seq_dmabuf; | |
11304 | } | |
4f774513 JS |
11305 | /* find the correct place in the sequence to insert this frame */ |
11306 | list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) { | |
11307 | temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf); | |
11308 | temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt; | |
11309 | /* | |
11310 | * If the frame's sequence count is greater than the frame on | |
11311 | * the list then insert the frame right after this frame | |
11312 | */ | |
eeead811 JS |
11313 | if (be16_to_cpu(new_hdr->fh_seq_cnt) > |
11314 | be16_to_cpu(temp_hdr->fh_seq_cnt)) { | |
4f774513 JS |
11315 | list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list); |
11316 | return seq_dmabuf; | |
11317 | } | |
11318 | } | |
11319 | return NULL; | |
11320 | } | |
11321 | ||
6669f9bb JS |
11322 | /** |
11323 | * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence | |
11324 | * @vport: pointer to a vitural port | |
11325 | * @dmabuf: pointer to a dmabuf that describes the FC sequence | |
11326 | * | |
11327 | * This function tries to abort from the partially assembed sequence, described | |
11328 | * by the information from basic abbort @dmabuf. It checks to see whether such | |
11329 | * partially assembled sequence held by the driver. If so, it shall free up all | |
11330 | * the frames from the partially assembled sequence. | |
11331 | * | |
11332 | * Return | |
11333 | * true -- if there is matching partially assembled sequence present and all | |
11334 | * the frames freed with the sequence; | |
11335 | * false -- if there is no matching partially assembled sequence present so | |
11336 | * nothing got aborted in the lower layer driver | |
11337 | **/ | |
11338 | static bool | |
11339 | lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport, | |
11340 | struct hbq_dmabuf *dmabuf) | |
11341 | { | |
11342 | struct fc_frame_header *new_hdr; | |
11343 | struct fc_frame_header *temp_hdr; | |
11344 | struct lpfc_dmabuf *d_buf, *n_buf, *h_buf; | |
11345 | struct hbq_dmabuf *seq_dmabuf = NULL; | |
11346 | ||
11347 | /* Use the hdr_buf to find the sequence that matches this frame */ | |
11348 | INIT_LIST_HEAD(&dmabuf->dbuf.list); | |
11349 | INIT_LIST_HEAD(&dmabuf->hbuf.list); | |
11350 | new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt; | |
11351 | list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) { | |
11352 | temp_hdr = (struct fc_frame_header *)h_buf->virt; | |
11353 | if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) || | |
11354 | (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) || | |
11355 | (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3))) | |
11356 | continue; | |
11357 | /* found a pending sequence that matches this frame */ | |
11358 | seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf); | |
11359 | break; | |
11360 | } | |
11361 | ||
11362 | /* Free up all the frames from the partially assembled sequence */ | |
11363 | if (seq_dmabuf) { | |
11364 | list_for_each_entry_safe(d_buf, n_buf, | |
11365 | &seq_dmabuf->dbuf.list, list) { | |
11366 | list_del_init(&d_buf->list); | |
11367 | lpfc_in_buf_free(vport->phba, d_buf); | |
11368 | } | |
11369 | return true; | |
11370 | } | |
11371 | return false; | |
11372 | } | |
11373 | ||
11374 | /** | |
11375 | * lpfc_sli4_seq_abort_acc_cmpl - Accept seq abort iocb complete handler | |
11376 | * @phba: Pointer to HBA context object. | |
11377 | * @cmd_iocbq: pointer to the command iocbq structure. | |
11378 | * @rsp_iocbq: pointer to the response iocbq structure. | |
11379 | * | |
11380 | * This function handles the sequence abort accept iocb command complete | |
11381 | * event. It properly releases the memory allocated to the sequence abort | |
11382 | * accept iocb. | |
11383 | **/ | |
11384 | static void | |
11385 | lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba *phba, | |
11386 | struct lpfc_iocbq *cmd_iocbq, | |
11387 | struct lpfc_iocbq *rsp_iocbq) | |
11388 | { | |
11389 | if (cmd_iocbq) | |
11390 | lpfc_sli_release_iocbq(phba, cmd_iocbq); | |
11391 | } | |
11392 | ||
11393 | /** | |
11394 | * lpfc_sli4_seq_abort_acc - Accept sequence abort | |
11395 | * @phba: Pointer to HBA context object. | |
11396 | * @fc_hdr: pointer to a FC frame header. | |
11397 | * | |
11398 | * This function sends a basic accept to a previous unsol sequence abort | |
11399 | * event after aborting the sequence handling. | |
11400 | **/ | |
11401 | static void | |
11402 | lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba, | |
11403 | struct fc_frame_header *fc_hdr) | |
11404 | { | |
11405 | struct lpfc_iocbq *ctiocb = NULL; | |
11406 | struct lpfc_nodelist *ndlp; | |
5ffc266e JS |
11407 | uint16_t oxid, rxid; |
11408 | uint32_t sid, fctl; | |
6669f9bb JS |
11409 | IOCB_t *icmd; |
11410 | ||
11411 | if (!lpfc_is_link_up(phba)) | |
11412 | return; | |
11413 | ||
11414 | sid = sli4_sid_from_fc_hdr(fc_hdr); | |
11415 | oxid = be16_to_cpu(fc_hdr->fh_ox_id); | |
5ffc266e | 11416 | rxid = be16_to_cpu(fc_hdr->fh_rx_id); |
6669f9bb JS |
11417 | |
11418 | ndlp = lpfc_findnode_did(phba->pport, sid); | |
11419 | if (!ndlp) { | |
11420 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, | |
11421 | "1268 Find ndlp returned NULL for oxid:x%x " | |
11422 | "SID:x%x\n", oxid, sid); | |
11423 | return; | |
11424 | } | |
11425 | ||
11426 | /* Allocate buffer for acc iocb */ | |
11427 | ctiocb = lpfc_sli_get_iocbq(phba); | |
11428 | if (!ctiocb) | |
11429 | return; | |
11430 | ||
5ffc266e JS |
11431 | /* Extract the F_CTL field from FC_HDR */ |
11432 | fctl = sli4_fctl_from_fc_hdr(fc_hdr); | |
11433 | ||
6669f9bb | 11434 | icmd = &ctiocb->iocb; |
6669f9bb | 11435 | icmd->un.xseq64.bdl.bdeSize = 0; |
5ffc266e | 11436 | icmd->un.xseq64.bdl.ulpIoTag32 = 0; |
6669f9bb JS |
11437 | icmd->un.xseq64.w5.hcsw.Dfctl = 0; |
11438 | icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC; | |
11439 | icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS; | |
11440 | ||
11441 | /* Fill in the rest of iocb fields */ | |
11442 | icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX; | |
11443 | icmd->ulpBdeCount = 0; | |
11444 | icmd->ulpLe = 1; | |
11445 | icmd->ulpClass = CLASS3; | |
11446 | icmd->ulpContext = ndlp->nlp_rpi; | |
6669f9bb | 11447 | |
6669f9bb JS |
11448 | ctiocb->iocb_cmpl = NULL; |
11449 | ctiocb->vport = phba->pport; | |
11450 | ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_acc_cmpl; | |
11451 | ||
5ffc266e JS |
11452 | if (fctl & FC_FC_EX_CTX) { |
11453 | /* ABTS sent by responder to CT exchange, construction | |
11454 | * of BA_ACC will use OX_ID from ABTS for the XRI_TAG | |
11455 | * field and RX_ID from ABTS for RX_ID field. | |
11456 | */ | |
11457 | bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_RSP); | |
11458 | bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, rxid); | |
11459 | ctiocb->sli4_xritag = oxid; | |
11460 | } else { | |
11461 | /* ABTS sent by initiator to CT exchange, construction | |
11462 | * of BA_ACC will need to allocate a new XRI as for the | |
11463 | * XRI_TAG and RX_ID fields. | |
11464 | */ | |
11465 | bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_INT); | |
11466 | bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, NO_XRI); | |
11467 | ctiocb->sli4_xritag = NO_XRI; | |
11468 | } | |
11469 | bf_set(lpfc_abts_oxid, &icmd->un.bls_acc, oxid); | |
11470 | ||
6669f9bb JS |
11471 | /* Xmit CT abts accept on exchange <xid> */ |
11472 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
11473 | "1200 Xmit CT ABTS ACC on exchange x%x Data: x%x\n", | |
11474 | CMD_XMIT_BLS_RSP64_CX, phba->link_state); | |
11475 | lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0); | |
11476 | } | |
11477 | ||
11478 | /** | |
11479 | * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event | |
11480 | * @vport: Pointer to the vport on which this sequence was received | |
11481 | * @dmabuf: pointer to a dmabuf that describes the FC sequence | |
11482 | * | |
11483 | * This function handles an SLI-4 unsolicited abort event. If the unsolicited | |
11484 | * receive sequence is only partially assembed by the driver, it shall abort | |
11485 | * the partially assembled frames for the sequence. Otherwise, if the | |
11486 | * unsolicited receive sequence has been completely assembled and passed to | |
11487 | * the Upper Layer Protocol (UPL), it then mark the per oxid status for the | |
11488 | * unsolicited sequence has been aborted. After that, it will issue a basic | |
11489 | * accept to accept the abort. | |
11490 | **/ | |
11491 | void | |
11492 | lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport, | |
11493 | struct hbq_dmabuf *dmabuf) | |
11494 | { | |
11495 | struct lpfc_hba *phba = vport->phba; | |
11496 | struct fc_frame_header fc_hdr; | |
5ffc266e | 11497 | uint32_t fctl; |
6669f9bb JS |
11498 | bool abts_par; |
11499 | ||
6669f9bb JS |
11500 | /* Make a copy of fc_hdr before the dmabuf being released */ |
11501 | memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header)); | |
5ffc266e | 11502 | fctl = sli4_fctl_from_fc_hdr(&fc_hdr); |
6669f9bb | 11503 | |
5ffc266e JS |
11504 | if (fctl & FC_FC_EX_CTX) { |
11505 | /* | |
11506 | * ABTS sent by responder to exchange, just free the buffer | |
11507 | */ | |
6669f9bb | 11508 | lpfc_in_buf_free(phba, &dmabuf->dbuf); |
5ffc266e JS |
11509 | } else { |
11510 | /* | |
11511 | * ABTS sent by initiator to exchange, need to do cleanup | |
11512 | */ | |
11513 | /* Try to abort partially assembled seq */ | |
11514 | abts_par = lpfc_sli4_abort_partial_seq(vport, dmabuf); | |
11515 | ||
11516 | /* Send abort to ULP if partially seq abort failed */ | |
11517 | if (abts_par == false) | |
11518 | lpfc_sli4_send_seq_to_ulp(vport, dmabuf); | |
11519 | else | |
11520 | lpfc_in_buf_free(phba, &dmabuf->dbuf); | |
11521 | } | |
6669f9bb JS |
11522 | /* Send basic accept (BA_ACC) to the abort requester */ |
11523 | lpfc_sli4_seq_abort_acc(phba, &fc_hdr); | |
11524 | } | |
11525 | ||
4f774513 JS |
11526 | /** |
11527 | * lpfc_seq_complete - Indicates if a sequence is complete | |
11528 | * @dmabuf: pointer to a dmabuf that describes the FC sequence | |
11529 | * | |
11530 | * This function checks the sequence, starting with the frame described by | |
11531 | * @dmabuf, to see if all the frames associated with this sequence are present. | |
11532 | * the frames associated with this sequence are linked to the @dmabuf using the | |
11533 | * dbuf list. This function looks for two major things. 1) That the first frame | |
11534 | * has a sequence count of zero. 2) There is a frame with last frame of sequence | |
11535 | * set. 3) That there are no holes in the sequence count. The function will | |
11536 | * return 1 when the sequence is complete, otherwise it will return 0. | |
11537 | **/ | |
11538 | static int | |
11539 | lpfc_seq_complete(struct hbq_dmabuf *dmabuf) | |
11540 | { | |
11541 | struct fc_frame_header *hdr; | |
11542 | struct lpfc_dmabuf *d_buf; | |
11543 | struct hbq_dmabuf *seq_dmabuf; | |
11544 | uint32_t fctl; | |
11545 | int seq_count = 0; | |
11546 | ||
11547 | hdr = (struct fc_frame_header *)dmabuf->hbuf.virt; | |
11548 | /* make sure first fame of sequence has a sequence count of zero */ | |
11549 | if (hdr->fh_seq_cnt != seq_count) | |
11550 | return 0; | |
11551 | fctl = (hdr->fh_f_ctl[0] << 16 | | |
11552 | hdr->fh_f_ctl[1] << 8 | | |
11553 | hdr->fh_f_ctl[2]); | |
11554 | /* If last frame of sequence we can return success. */ | |
11555 | if (fctl & FC_FC_END_SEQ) | |
11556 | return 1; | |
11557 | list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) { | |
11558 | seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf); | |
11559 | hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt; | |
11560 | /* If there is a hole in the sequence count then fail. */ | |
eeead811 | 11561 | if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt)) |
4f774513 JS |
11562 | return 0; |
11563 | fctl = (hdr->fh_f_ctl[0] << 16 | | |
11564 | hdr->fh_f_ctl[1] << 8 | | |
11565 | hdr->fh_f_ctl[2]); | |
11566 | /* If last frame of sequence we can return success. */ | |
11567 | if (fctl & FC_FC_END_SEQ) | |
11568 | return 1; | |
11569 | } | |
11570 | return 0; | |
11571 | } | |
11572 | ||
11573 | /** | |
11574 | * lpfc_prep_seq - Prep sequence for ULP processing | |
11575 | * @vport: Pointer to the vport on which this sequence was received | |
11576 | * @dmabuf: pointer to a dmabuf that describes the FC sequence | |
11577 | * | |
11578 | * This function takes a sequence, described by a list of frames, and creates | |
11579 | * a list of iocbq structures to describe the sequence. This iocbq list will be | |
11580 | * used to issue to the generic unsolicited sequence handler. This routine | |
11581 | * returns a pointer to the first iocbq in the list. If the function is unable | |
11582 | * to allocate an iocbq then it throw out the received frames that were not | |
11583 | * able to be described and return a pointer to the first iocbq. If unable to | |
11584 | * allocate any iocbqs (including the first) this function will return NULL. | |
11585 | **/ | |
11586 | static struct lpfc_iocbq * | |
11587 | lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf) | |
11588 | { | |
11589 | struct lpfc_dmabuf *d_buf, *n_buf; | |
11590 | struct lpfc_iocbq *first_iocbq, *iocbq; | |
11591 | struct fc_frame_header *fc_hdr; | |
11592 | uint32_t sid; | |
eeead811 | 11593 | struct ulp_bde64 *pbde; |
4f774513 JS |
11594 | |
11595 | fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt; | |
11596 | /* remove from receive buffer list */ | |
11597 | list_del_init(&seq_dmabuf->hbuf.list); | |
45ed1190 | 11598 | lpfc_update_rcv_time_stamp(vport); |
4f774513 | 11599 | /* get the Remote Port's SID */ |
6669f9bb | 11600 | sid = sli4_sid_from_fc_hdr(fc_hdr); |
4f774513 JS |
11601 | /* Get an iocbq struct to fill in. */ |
11602 | first_iocbq = lpfc_sli_get_iocbq(vport->phba); | |
11603 | if (first_iocbq) { | |
11604 | /* Initialize the first IOCB. */ | |
8fa38513 | 11605 | first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0; |
4f774513 JS |
11606 | first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS; |
11607 | first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX; | |
11608 | first_iocbq->iocb.ulpContext = be16_to_cpu(fc_hdr->fh_ox_id); | |
11609 | first_iocbq->iocb.unsli3.rcvsli3.vpi = | |
11610 | vport->vpi + vport->phba->vpi_base; | |
11611 | /* put the first buffer into the first IOCBq */ | |
11612 | first_iocbq->context2 = &seq_dmabuf->dbuf; | |
11613 | first_iocbq->context3 = NULL; | |
11614 | first_iocbq->iocb.ulpBdeCount = 1; | |
11615 | first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = | |
11616 | LPFC_DATA_BUF_SIZE; | |
11617 | first_iocbq->iocb.un.rcvels.remoteID = sid; | |
8fa38513 | 11618 | first_iocbq->iocb.unsli3.rcvsli3.acc_len += |
4d9ab994 JS |
11619 | bf_get(lpfc_rcqe_length, |
11620 | &seq_dmabuf->cq_event.cqe.rcqe_cmpl); | |
4f774513 JS |
11621 | } |
11622 | iocbq = first_iocbq; | |
11623 | /* | |
11624 | * Each IOCBq can have two Buffers assigned, so go through the list | |
11625 | * of buffers for this sequence and save two buffers in each IOCBq | |
11626 | */ | |
11627 | list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) { | |
11628 | if (!iocbq) { | |
11629 | lpfc_in_buf_free(vport->phba, d_buf); | |
11630 | continue; | |
11631 | } | |
11632 | if (!iocbq->context3) { | |
11633 | iocbq->context3 = d_buf; | |
11634 | iocbq->iocb.ulpBdeCount++; | |
eeead811 JS |
11635 | pbde = (struct ulp_bde64 *) |
11636 | &iocbq->iocb.unsli3.sli3Words[4]; | |
11637 | pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE; | |
8fa38513 | 11638 | first_iocbq->iocb.unsli3.rcvsli3.acc_len += |
4d9ab994 JS |
11639 | bf_get(lpfc_rcqe_length, |
11640 | &seq_dmabuf->cq_event.cqe.rcqe_cmpl); | |
4f774513 JS |
11641 | } else { |
11642 | iocbq = lpfc_sli_get_iocbq(vport->phba); | |
11643 | if (!iocbq) { | |
11644 | if (first_iocbq) { | |
11645 | first_iocbq->iocb.ulpStatus = | |
11646 | IOSTAT_FCP_RSP_ERROR; | |
11647 | first_iocbq->iocb.un.ulpWord[4] = | |
11648 | IOERR_NO_RESOURCES; | |
11649 | } | |
11650 | lpfc_in_buf_free(vport->phba, d_buf); | |
11651 | continue; | |
11652 | } | |
11653 | iocbq->context2 = d_buf; | |
11654 | iocbq->context3 = NULL; | |
11655 | iocbq->iocb.ulpBdeCount = 1; | |
11656 | iocbq->iocb.un.cont64[0].tus.f.bdeSize = | |
11657 | LPFC_DATA_BUF_SIZE; | |
8fa38513 | 11658 | first_iocbq->iocb.unsli3.rcvsli3.acc_len += |
4d9ab994 JS |
11659 | bf_get(lpfc_rcqe_length, |
11660 | &seq_dmabuf->cq_event.cqe.rcqe_cmpl); | |
4f774513 JS |
11661 | iocbq->iocb.un.rcvels.remoteID = sid; |
11662 | list_add_tail(&iocbq->list, &first_iocbq->list); | |
11663 | } | |
11664 | } | |
11665 | return first_iocbq; | |
11666 | } | |
11667 | ||
6669f9bb JS |
11668 | static void |
11669 | lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport, | |
11670 | struct hbq_dmabuf *seq_dmabuf) | |
11671 | { | |
11672 | struct fc_frame_header *fc_hdr; | |
11673 | struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb; | |
11674 | struct lpfc_hba *phba = vport->phba; | |
11675 | ||
11676 | fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt; | |
11677 | iocbq = lpfc_prep_seq(vport, seq_dmabuf); | |
11678 | if (!iocbq) { | |
11679 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11680 | "2707 Ring %d handler: Failed to allocate " | |
11681 | "iocb Rctl x%x Type x%x received\n", | |
11682 | LPFC_ELS_RING, | |
11683 | fc_hdr->fh_r_ctl, fc_hdr->fh_type); | |
11684 | return; | |
11685 | } | |
11686 | if (!lpfc_complete_unsol_iocb(phba, | |
11687 | &phba->sli.ring[LPFC_ELS_RING], | |
11688 | iocbq, fc_hdr->fh_r_ctl, | |
11689 | fc_hdr->fh_type)) | |
11690 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
11691 | "2540 Ring %d handler: unexpected Rctl " | |
11692 | "x%x Type x%x received\n", | |
11693 | LPFC_ELS_RING, | |
11694 | fc_hdr->fh_r_ctl, fc_hdr->fh_type); | |
11695 | ||
11696 | /* Free iocb created in lpfc_prep_seq */ | |
11697 | list_for_each_entry_safe(curr_iocb, next_iocb, | |
11698 | &iocbq->list, list) { | |
11699 | list_del_init(&curr_iocb->list); | |
11700 | lpfc_sli_release_iocbq(phba, curr_iocb); | |
11701 | } | |
11702 | lpfc_sli_release_iocbq(phba, iocbq); | |
11703 | } | |
11704 | ||
4f774513 JS |
11705 | /** |
11706 | * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware | |
11707 | * @phba: Pointer to HBA context object. | |
11708 | * | |
11709 | * This function is called with no lock held. This function processes all | |
11710 | * the received buffers and gives it to upper layers when a received buffer | |
11711 | * indicates that it is the final frame in the sequence. The interrupt | |
11712 | * service routine processes received buffers at interrupt contexts and adds | |
11713 | * received dma buffers to the rb_pend_list queue and signals the worker thread. | |
11714 | * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the | |
11715 | * appropriate receive function when the final frame in a sequence is received. | |
11716 | **/ | |
4d9ab994 JS |
11717 | void |
11718 | lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba, | |
11719 | struct hbq_dmabuf *dmabuf) | |
4f774513 | 11720 | { |
4d9ab994 | 11721 | struct hbq_dmabuf *seq_dmabuf; |
4f774513 JS |
11722 | struct fc_frame_header *fc_hdr; |
11723 | struct lpfc_vport *vport; | |
11724 | uint32_t fcfi; | |
4f774513 | 11725 | |
4f774513 | 11726 | /* Process each received buffer */ |
4d9ab994 JS |
11727 | fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt; |
11728 | /* check to see if this a valid type of frame */ | |
11729 | if (lpfc_fc_frame_check(phba, fc_hdr)) { | |
11730 | lpfc_in_buf_free(phba, &dmabuf->dbuf); | |
11731 | return; | |
11732 | } | |
11733 | fcfi = bf_get(lpfc_rcqe_fcf_id, &dmabuf->cq_event.cqe.rcqe_cmpl); | |
11734 | vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi); | |
c868595d | 11735 | if (!vport || !(vport->vpi_state & LPFC_VPI_REGISTERED)) { |
4d9ab994 JS |
11736 | /* throw out the frame */ |
11737 | lpfc_in_buf_free(phba, &dmabuf->dbuf); | |
11738 | return; | |
11739 | } | |
6669f9bb JS |
11740 | /* Handle the basic abort sequence (BA_ABTS) event */ |
11741 | if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) { | |
11742 | lpfc_sli4_handle_unsol_abort(vport, dmabuf); | |
11743 | return; | |
11744 | } | |
11745 | ||
4d9ab994 JS |
11746 | /* Link this frame */ |
11747 | seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf); | |
11748 | if (!seq_dmabuf) { | |
11749 | /* unable to add frame to vport - throw it out */ | |
11750 | lpfc_in_buf_free(phba, &dmabuf->dbuf); | |
11751 | return; | |
11752 | } | |
11753 | /* If not last frame in sequence continue processing frames. */ | |
def9c7a9 | 11754 | if (!lpfc_seq_complete(seq_dmabuf)) |
4d9ab994 | 11755 | return; |
def9c7a9 | 11756 | |
6669f9bb JS |
11757 | /* Send the complete sequence to the upper layer protocol */ |
11758 | lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf); | |
4f774513 | 11759 | } |
6fb120a7 JS |
11760 | |
11761 | /** | |
11762 | * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port | |
11763 | * @phba: pointer to lpfc hba data structure. | |
11764 | * | |
11765 | * This routine is invoked to post rpi header templates to the | |
11766 | * HBA consistent with the SLI-4 interface spec. This routine | |
49198b37 JS |
11767 | * posts a SLI4_PAGE_SIZE memory region to the port to hold up to |
11768 | * SLI4_PAGE_SIZE modulo 64 rpi context headers. | |
6fb120a7 JS |
11769 | * |
11770 | * This routine does not require any locks. It's usage is expected | |
11771 | * to be driver load or reset recovery when the driver is | |
11772 | * sequential. | |
11773 | * | |
11774 | * Return codes | |
af901ca1 | 11775 | * 0 - successful |
d439d286 | 11776 | * -EIO - The mailbox failed to complete successfully. |
6fb120a7 JS |
11777 | * When this error occurs, the driver is not guaranteed |
11778 | * to have any rpi regions posted to the device and | |
11779 | * must either attempt to repost the regions or take a | |
11780 | * fatal error. | |
11781 | **/ | |
11782 | int | |
11783 | lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba) | |
11784 | { | |
11785 | struct lpfc_rpi_hdr *rpi_page; | |
11786 | uint32_t rc = 0; | |
11787 | ||
11788 | /* Post all rpi memory regions to the port. */ | |
11789 | list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) { | |
11790 | rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page); | |
11791 | if (rc != MBX_SUCCESS) { | |
11792 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11793 | "2008 Error %d posting all rpi " | |
11794 | "headers\n", rc); | |
11795 | rc = -EIO; | |
11796 | break; | |
11797 | } | |
11798 | } | |
11799 | ||
11800 | return rc; | |
11801 | } | |
11802 | ||
11803 | /** | |
11804 | * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port | |
11805 | * @phba: pointer to lpfc hba data structure. | |
11806 | * @rpi_page: pointer to the rpi memory region. | |
11807 | * | |
11808 | * This routine is invoked to post a single rpi header to the | |
11809 | * HBA consistent with the SLI-4 interface spec. This memory region | |
11810 | * maps up to 64 rpi context regions. | |
11811 | * | |
11812 | * Return codes | |
af901ca1 | 11813 | * 0 - successful |
d439d286 JS |
11814 | * -ENOMEM - No available memory |
11815 | * -EIO - The mailbox failed to complete successfully. | |
6fb120a7 JS |
11816 | **/ |
11817 | int | |
11818 | lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page) | |
11819 | { | |
11820 | LPFC_MBOXQ_t *mboxq; | |
11821 | struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl; | |
11822 | uint32_t rc = 0; | |
11823 | uint32_t mbox_tmo; | |
11824 | uint32_t shdr_status, shdr_add_status; | |
11825 | union lpfc_sli4_cfg_shdr *shdr; | |
11826 | ||
11827 | /* The port is notified of the header region via a mailbox command. */ | |
11828 | mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
11829 | if (!mboxq) { | |
11830 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11831 | "2001 Unable to allocate memory for issuing " | |
11832 | "SLI_CONFIG_SPECIAL mailbox command\n"); | |
11833 | return -ENOMEM; | |
11834 | } | |
11835 | ||
11836 | /* Post all rpi memory regions to the port. */ | |
11837 | hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl; | |
11838 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); | |
11839 | lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
11840 | LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE, | |
11841 | sizeof(struct lpfc_mbx_post_hdr_tmpl) - | |
11842 | sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED); | |
11843 | bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt, | |
11844 | hdr_tmpl, rpi_page->page_count); | |
11845 | bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl, | |
11846 | rpi_page->start_rpi); | |
11847 | hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys); | |
11848 | hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys); | |
f1126688 | 11849 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); |
6fb120a7 JS |
11850 | shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr; |
11851 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
11852 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
11853 | if (rc != MBX_TIMEOUT) | |
11854 | mempool_free(mboxq, phba->mbox_mem_pool); | |
11855 | if (shdr_status || shdr_add_status || rc) { | |
11856 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11857 | "2514 POST_RPI_HDR mailbox failed with " | |
11858 | "status x%x add_status x%x, mbx status x%x\n", | |
11859 | shdr_status, shdr_add_status, rc); | |
11860 | rc = -ENXIO; | |
11861 | } | |
11862 | return rc; | |
11863 | } | |
11864 | ||
11865 | /** | |
11866 | * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range | |
11867 | * @phba: pointer to lpfc hba data structure. | |
11868 | * | |
11869 | * This routine is invoked to post rpi header templates to the | |
11870 | * HBA consistent with the SLI-4 interface spec. This routine | |
49198b37 JS |
11871 | * posts a SLI4_PAGE_SIZE memory region to the port to hold up to |
11872 | * SLI4_PAGE_SIZE modulo 64 rpi context headers. | |
6fb120a7 JS |
11873 | * |
11874 | * Returns | |
af901ca1 | 11875 | * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful |
6fb120a7 JS |
11876 | * LPFC_RPI_ALLOC_ERROR if no rpis are available. |
11877 | **/ | |
11878 | int | |
11879 | lpfc_sli4_alloc_rpi(struct lpfc_hba *phba) | |
11880 | { | |
11881 | int rpi; | |
11882 | uint16_t max_rpi, rpi_base, rpi_limit; | |
11883 | uint16_t rpi_remaining; | |
11884 | struct lpfc_rpi_hdr *rpi_hdr; | |
11885 | ||
11886 | max_rpi = phba->sli4_hba.max_cfg_param.max_rpi; | |
11887 | rpi_base = phba->sli4_hba.max_cfg_param.rpi_base; | |
11888 | rpi_limit = phba->sli4_hba.next_rpi; | |
11889 | ||
11890 | /* | |
11891 | * The valid rpi range is not guaranteed to be zero-based. Start | |
11892 | * the search at the rpi_base as reported by the port. | |
11893 | */ | |
11894 | spin_lock_irq(&phba->hbalock); | |
11895 | rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, rpi_base); | |
11896 | if (rpi >= rpi_limit || rpi < rpi_base) | |
11897 | rpi = LPFC_RPI_ALLOC_ERROR; | |
11898 | else { | |
11899 | set_bit(rpi, phba->sli4_hba.rpi_bmask); | |
11900 | phba->sli4_hba.max_cfg_param.rpi_used++; | |
11901 | phba->sli4_hba.rpi_count++; | |
11902 | } | |
11903 | ||
11904 | /* | |
11905 | * Don't try to allocate more rpi header regions if the device limit | |
11906 | * on available rpis max has been exhausted. | |
11907 | */ | |
11908 | if ((rpi == LPFC_RPI_ALLOC_ERROR) && | |
11909 | (phba->sli4_hba.rpi_count >= max_rpi)) { | |
11910 | spin_unlock_irq(&phba->hbalock); | |
11911 | return rpi; | |
11912 | } | |
11913 | ||
11914 | /* | |
11915 | * If the driver is running low on rpi resources, allocate another | |
11916 | * page now. Note that the next_rpi value is used because | |
11917 | * it represents how many are actually in use whereas max_rpi notes | |
11918 | * how many are supported max by the device. | |
11919 | */ | |
11920 | rpi_remaining = phba->sli4_hba.next_rpi - rpi_base - | |
11921 | phba->sli4_hba.rpi_count; | |
11922 | spin_unlock_irq(&phba->hbalock); | |
11923 | if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) { | |
11924 | rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); | |
11925 | if (!rpi_hdr) { | |
11926 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11927 | "2002 Error Could not grow rpi " | |
11928 | "count\n"); | |
11929 | } else { | |
11930 | lpfc_sli4_post_rpi_hdr(phba, rpi_hdr); | |
11931 | } | |
11932 | } | |
11933 | ||
11934 | return rpi; | |
11935 | } | |
11936 | ||
d7c47992 JS |
11937 | /** |
11938 | * lpfc_sli4_free_rpi - Release an rpi for reuse. | |
11939 | * @phba: pointer to lpfc hba data structure. | |
11940 | * | |
11941 | * This routine is invoked to release an rpi to the pool of | |
11942 | * available rpis maintained by the driver. | |
11943 | **/ | |
11944 | void | |
11945 | __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi) | |
11946 | { | |
11947 | if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) { | |
11948 | phba->sli4_hba.rpi_count--; | |
11949 | phba->sli4_hba.max_cfg_param.rpi_used--; | |
11950 | } | |
11951 | } | |
11952 | ||
6fb120a7 JS |
11953 | /** |
11954 | * lpfc_sli4_free_rpi - Release an rpi for reuse. | |
11955 | * @phba: pointer to lpfc hba data structure. | |
11956 | * | |
11957 | * This routine is invoked to release an rpi to the pool of | |
11958 | * available rpis maintained by the driver. | |
11959 | **/ | |
11960 | void | |
11961 | lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi) | |
11962 | { | |
11963 | spin_lock_irq(&phba->hbalock); | |
d7c47992 | 11964 | __lpfc_sli4_free_rpi(phba, rpi); |
6fb120a7 JS |
11965 | spin_unlock_irq(&phba->hbalock); |
11966 | } | |
11967 | ||
11968 | /** | |
11969 | * lpfc_sli4_remove_rpis - Remove the rpi bitmask region | |
11970 | * @phba: pointer to lpfc hba data structure. | |
11971 | * | |
11972 | * This routine is invoked to remove the memory region that | |
11973 | * provided rpi via a bitmask. | |
11974 | **/ | |
11975 | void | |
11976 | lpfc_sli4_remove_rpis(struct lpfc_hba *phba) | |
11977 | { | |
11978 | kfree(phba->sli4_hba.rpi_bmask); | |
11979 | } | |
11980 | ||
11981 | /** | |
11982 | * lpfc_sli4_resume_rpi - Remove the rpi bitmask region | |
11983 | * @phba: pointer to lpfc hba data structure. | |
11984 | * | |
11985 | * This routine is invoked to remove the memory region that | |
11986 | * provided rpi via a bitmask. | |
11987 | **/ | |
11988 | int | |
11989 | lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp) | |
11990 | { | |
11991 | LPFC_MBOXQ_t *mboxq; | |
11992 | struct lpfc_hba *phba = ndlp->phba; | |
11993 | int rc; | |
11994 | ||
11995 | /* The port is notified of the header region via a mailbox command. */ | |
11996 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
11997 | if (!mboxq) | |
11998 | return -ENOMEM; | |
11999 | ||
12000 | /* Post all rpi memory regions to the port. */ | |
12001 | lpfc_resume_rpi(mboxq, ndlp); | |
12002 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
12003 | if (rc == MBX_NOT_FINISHED) { | |
12004 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
12005 | "2010 Resume RPI Mailbox failed " | |
12006 | "status %d, mbxStatus x%x\n", rc, | |
12007 | bf_get(lpfc_mqe_status, &mboxq->u.mqe)); | |
12008 | mempool_free(mboxq, phba->mbox_mem_pool); | |
12009 | return -EIO; | |
12010 | } | |
12011 | return 0; | |
12012 | } | |
12013 | ||
12014 | /** | |
12015 | * lpfc_sli4_init_vpi - Initialize a vpi with the port | |
12016 | * @phba: pointer to lpfc hba data structure. | |
12017 | * @vpi: vpi value to activate with the port. | |
12018 | * | |
12019 | * This routine is invoked to activate a vpi with the | |
12020 | * port when the host intends to use vports with a | |
12021 | * nonzero vpi. | |
12022 | * | |
12023 | * Returns: | |
12024 | * 0 success | |
12025 | * -Evalue otherwise | |
12026 | **/ | |
12027 | int | |
12028 | lpfc_sli4_init_vpi(struct lpfc_hba *phba, uint16_t vpi) | |
12029 | { | |
12030 | LPFC_MBOXQ_t *mboxq; | |
12031 | int rc = 0; | |
6a9c52cf | 12032 | int retval = MBX_SUCCESS; |
6fb120a7 JS |
12033 | uint32_t mbox_tmo; |
12034 | ||
12035 | if (vpi == 0) | |
12036 | return -EINVAL; | |
12037 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
12038 | if (!mboxq) | |
12039 | return -ENOMEM; | |
1c6834a7 | 12040 | lpfc_init_vpi(phba, mboxq, vpi); |
6fb120a7 JS |
12041 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_INIT_VPI); |
12042 | rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); | |
6fb120a7 JS |
12043 | if (rc != MBX_SUCCESS) { |
12044 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
12045 | "2022 INIT VPI Mailbox failed " | |
12046 | "status %d, mbxStatus x%x\n", rc, | |
12047 | bf_get(lpfc_mqe_status, &mboxq->u.mqe)); | |
6a9c52cf | 12048 | retval = -EIO; |
6fb120a7 | 12049 | } |
6a9c52cf JS |
12050 | if (rc != MBX_TIMEOUT) |
12051 | mempool_free(mboxq, phba->mbox_mem_pool); | |
12052 | ||
12053 | return retval; | |
6fb120a7 JS |
12054 | } |
12055 | ||
12056 | /** | |
12057 | * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler. | |
12058 | * @phba: pointer to lpfc hba data structure. | |
12059 | * @mboxq: Pointer to mailbox object. | |
12060 | * | |
12061 | * This routine is invoked to manually add a single FCF record. The caller | |
12062 | * must pass a completely initialized FCF_Record. This routine takes | |
12063 | * care of the nonembedded mailbox operations. | |
12064 | **/ | |
12065 | static void | |
12066 | lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) | |
12067 | { | |
12068 | void *virt_addr; | |
12069 | union lpfc_sli4_cfg_shdr *shdr; | |
12070 | uint32_t shdr_status, shdr_add_status; | |
12071 | ||
12072 | virt_addr = mboxq->sge_array->addr[0]; | |
12073 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
12074 | shdr = (union lpfc_sli4_cfg_shdr *) virt_addr; | |
12075 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
12076 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
12077 | ||
12078 | if ((shdr_status || shdr_add_status) && | |
12079 | (shdr_status != STATUS_FCF_IN_USE)) | |
12080 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
12081 | "2558 ADD_FCF_RECORD mailbox failed with " | |
12082 | "status x%x add_status x%x\n", | |
12083 | shdr_status, shdr_add_status); | |
12084 | ||
12085 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
12086 | } | |
12087 | ||
12088 | /** | |
12089 | * lpfc_sli4_add_fcf_record - Manually add an FCF Record. | |
12090 | * @phba: pointer to lpfc hba data structure. | |
12091 | * @fcf_record: pointer to the initialized fcf record to add. | |
12092 | * | |
12093 | * This routine is invoked to manually add a single FCF record. The caller | |
12094 | * must pass a completely initialized FCF_Record. This routine takes | |
12095 | * care of the nonembedded mailbox operations. | |
12096 | **/ | |
12097 | int | |
12098 | lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record) | |
12099 | { | |
12100 | int rc = 0; | |
12101 | LPFC_MBOXQ_t *mboxq; | |
12102 | uint8_t *bytep; | |
12103 | void *virt_addr; | |
12104 | dma_addr_t phys_addr; | |
12105 | struct lpfc_mbx_sge sge; | |
12106 | uint32_t alloc_len, req_len; | |
12107 | uint32_t fcfindex; | |
12108 | ||
12109 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
12110 | if (!mboxq) { | |
12111 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
12112 | "2009 Failed to allocate mbox for ADD_FCF cmd\n"); | |
12113 | return -ENOMEM; | |
12114 | } | |
12115 | ||
12116 | req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) + | |
12117 | sizeof(uint32_t); | |
12118 | ||
12119 | /* Allocate DMA memory and set up the non-embedded mailbox command */ | |
12120 | alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
12121 | LPFC_MBOX_OPCODE_FCOE_ADD_FCF, | |
12122 | req_len, LPFC_SLI4_MBX_NEMBED); | |
12123 | if (alloc_len < req_len) { | |
12124 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
12125 | "2523 Allocated DMA memory size (x%x) is " | |
12126 | "less than the requested DMA memory " | |
12127 | "size (x%x)\n", alloc_len, req_len); | |
12128 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
12129 | return -ENOMEM; | |
12130 | } | |
12131 | ||
12132 | /* | |
12133 | * Get the first SGE entry from the non-embedded DMA memory. This | |
12134 | * routine only uses a single SGE. | |
12135 | */ | |
12136 | lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); | |
12137 | phys_addr = getPaddr(sge.pa_hi, sge.pa_lo); | |
6fb120a7 JS |
12138 | virt_addr = mboxq->sge_array->addr[0]; |
12139 | /* | |
12140 | * Configure the FCF record for FCFI 0. This is the driver's | |
12141 | * hardcoded default and gets used in nonFIP mode. | |
12142 | */ | |
12143 | fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record); | |
12144 | bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr); | |
12145 | lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t)); | |
12146 | ||
12147 | /* | |
12148 | * Copy the fcf_index and the FCF Record Data. The data starts after | |
12149 | * the FCoE header plus word10. The data copy needs to be endian | |
12150 | * correct. | |
12151 | */ | |
12152 | bytep += sizeof(uint32_t); | |
12153 | lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record)); | |
12154 | mboxq->vport = phba->pport; | |
12155 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record; | |
12156 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
12157 | if (rc == MBX_NOT_FINISHED) { | |
12158 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
12159 | "2515 ADD_FCF_RECORD mailbox failed with " | |
12160 | "status 0x%x\n", rc); | |
12161 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
12162 | rc = -EIO; | |
12163 | } else | |
12164 | rc = 0; | |
12165 | ||
12166 | return rc; | |
12167 | } | |
12168 | ||
12169 | /** | |
12170 | * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record. | |
12171 | * @phba: pointer to lpfc hba data structure. | |
12172 | * @fcf_record: pointer to the fcf record to write the default data. | |
12173 | * @fcf_index: FCF table entry index. | |
12174 | * | |
12175 | * This routine is invoked to build the driver's default FCF record. The | |
12176 | * values used are hardcoded. This routine handles memory initialization. | |
12177 | * | |
12178 | **/ | |
12179 | void | |
12180 | lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba, | |
12181 | struct fcf_record *fcf_record, | |
12182 | uint16_t fcf_index) | |
12183 | { | |
12184 | memset(fcf_record, 0, sizeof(struct fcf_record)); | |
12185 | fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE; | |
12186 | fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER; | |
12187 | fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY; | |
12188 | bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]); | |
12189 | bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]); | |
12190 | bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]); | |
12191 | bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3); | |
12192 | bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4); | |
12193 | bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5); | |
12194 | bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]); | |
12195 | bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]); | |
12196 | bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]); | |
12197 | bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1); | |
0c287589 | 12198 | bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1); |
6fb120a7 JS |
12199 | bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index); |
12200 | bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record, | |
12201 | LPFC_FCF_FPMA | LPFC_FCF_SPMA); | |
12202 | /* Set the VLAN bit map */ | |
12203 | if (phba->valid_vlan) { | |
12204 | fcf_record->vlan_bitmap[phba->vlan_id / 8] | |
12205 | = 1 << (phba->vlan_id % 8); | |
12206 | } | |
12207 | } | |
12208 | ||
12209 | /** | |
0c9ab6f5 | 12210 | * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan. |
6fb120a7 JS |
12211 | * @phba: pointer to lpfc hba data structure. |
12212 | * @fcf_index: FCF table entry offset. | |
12213 | * | |
0c9ab6f5 JS |
12214 | * This routine is invoked to scan the entire FCF table by reading FCF |
12215 | * record and processing it one at a time starting from the @fcf_index | |
12216 | * for initial FCF discovery or fast FCF failover rediscovery. | |
12217 | * | |
12218 | * Return 0 if the mailbox command is submitted sucessfully, none 0 | |
12219 | * otherwise. | |
6fb120a7 JS |
12220 | **/ |
12221 | int | |
0c9ab6f5 | 12222 | lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index) |
6fb120a7 JS |
12223 | { |
12224 | int rc = 0, error; | |
12225 | LPFC_MBOXQ_t *mboxq; | |
6fb120a7 | 12226 | |
32b9793f | 12227 | phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag; |
6fb120a7 JS |
12228 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
12229 | if (!mboxq) { | |
12230 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
12231 | "2000 Failed to allocate mbox for " | |
12232 | "READ_FCF cmd\n"); | |
4d9ab994 | 12233 | error = -ENOMEM; |
0c9ab6f5 | 12234 | goto fail_fcf_scan; |
6fb120a7 | 12235 | } |
ecfd03c6 | 12236 | /* Construct the read FCF record mailbox command */ |
0c9ab6f5 | 12237 | rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index); |
ecfd03c6 JS |
12238 | if (rc) { |
12239 | error = -EINVAL; | |
0c9ab6f5 | 12240 | goto fail_fcf_scan; |
6fb120a7 | 12241 | } |
ecfd03c6 | 12242 | /* Issue the mailbox command asynchronously */ |
6fb120a7 | 12243 | mboxq->vport = phba->pport; |
0c9ab6f5 | 12244 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec; |
6fb120a7 | 12245 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); |
ecfd03c6 | 12246 | if (rc == MBX_NOT_FINISHED) |
6fb120a7 | 12247 | error = -EIO; |
ecfd03c6 | 12248 | else { |
32b9793f JS |
12249 | spin_lock_irq(&phba->hbalock); |
12250 | phba->hba_flag |= FCF_DISC_INPROGRESS; | |
12251 | spin_unlock_irq(&phba->hbalock); | |
38b92ef8 JS |
12252 | /* Reset eligible FCF count for new scan */ |
12253 | if (fcf_index == LPFC_FCOE_FCF_GET_FIRST) | |
999d813f | 12254 | phba->fcf.eligible_fcf_cnt = 0; |
6fb120a7 | 12255 | error = 0; |
32b9793f | 12256 | } |
0c9ab6f5 | 12257 | fail_fcf_scan: |
4d9ab994 JS |
12258 | if (error) { |
12259 | if (mboxq) | |
12260 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
12261 | /* FCF scan failed, clear FCF_DISC_INPROGRESS flag */ | |
12262 | spin_lock_irq(&phba->hbalock); | |
12263 | phba->hba_flag &= ~FCF_DISC_INPROGRESS; | |
12264 | spin_unlock_irq(&phba->hbalock); | |
12265 | } | |
6fb120a7 JS |
12266 | return error; |
12267 | } | |
a0c87cbd | 12268 | |
0c9ab6f5 JS |
12269 | /** |
12270 | * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for round robin fcf. | |
12271 | * @phba: pointer to lpfc hba data structure. | |
12272 | * @fcf_index: FCF table entry offset. | |
12273 | * | |
12274 | * This routine is invoked to read an FCF record indicated by @fcf_index | |
12275 | * and to use it for FLOGI round robin FCF failover. | |
12276 | * | |
12277 | * Return 0 if the mailbox command is submitted sucessfully, none 0 | |
12278 | * otherwise. | |
12279 | **/ | |
12280 | int | |
12281 | lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index) | |
12282 | { | |
12283 | int rc = 0, error; | |
12284 | LPFC_MBOXQ_t *mboxq; | |
12285 | ||
12286 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
12287 | if (!mboxq) { | |
12288 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT, | |
12289 | "2763 Failed to allocate mbox for " | |
12290 | "READ_FCF cmd\n"); | |
12291 | error = -ENOMEM; | |
12292 | goto fail_fcf_read; | |
12293 | } | |
12294 | /* Construct the read FCF record mailbox command */ | |
12295 | rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index); | |
12296 | if (rc) { | |
12297 | error = -EINVAL; | |
12298 | goto fail_fcf_read; | |
12299 | } | |
12300 | /* Issue the mailbox command asynchronously */ | |
12301 | mboxq->vport = phba->pport; | |
12302 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec; | |
12303 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
12304 | if (rc == MBX_NOT_FINISHED) | |
12305 | error = -EIO; | |
12306 | else | |
12307 | error = 0; | |
12308 | ||
12309 | fail_fcf_read: | |
12310 | if (error && mboxq) | |
12311 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
12312 | return error; | |
12313 | } | |
12314 | ||
12315 | /** | |
12316 | * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask. | |
12317 | * @phba: pointer to lpfc hba data structure. | |
12318 | * @fcf_index: FCF table entry offset. | |
12319 | * | |
12320 | * This routine is invoked to read an FCF record indicated by @fcf_index to | |
12321 | * determine whether it's eligible for FLOGI round robin failover list. | |
12322 | * | |
12323 | * Return 0 if the mailbox command is submitted sucessfully, none 0 | |
12324 | * otherwise. | |
12325 | **/ | |
12326 | int | |
12327 | lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index) | |
12328 | { | |
12329 | int rc = 0, error; | |
12330 | LPFC_MBOXQ_t *mboxq; | |
12331 | ||
12332 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
12333 | if (!mboxq) { | |
12334 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT, | |
12335 | "2758 Failed to allocate mbox for " | |
12336 | "READ_FCF cmd\n"); | |
12337 | error = -ENOMEM; | |
12338 | goto fail_fcf_read; | |
12339 | } | |
12340 | /* Construct the read FCF record mailbox command */ | |
12341 | rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index); | |
12342 | if (rc) { | |
12343 | error = -EINVAL; | |
12344 | goto fail_fcf_read; | |
12345 | } | |
12346 | /* Issue the mailbox command asynchronously */ | |
12347 | mboxq->vport = phba->pport; | |
12348 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec; | |
12349 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
12350 | if (rc == MBX_NOT_FINISHED) | |
12351 | error = -EIO; | |
12352 | else | |
12353 | error = 0; | |
12354 | ||
12355 | fail_fcf_read: | |
12356 | if (error && mboxq) | |
12357 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
12358 | return error; | |
12359 | } | |
12360 | ||
12361 | /** | |
12362 | * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index | |
12363 | * @phba: pointer to lpfc hba data structure. | |
12364 | * | |
12365 | * This routine is to get the next eligible FCF record index in a round | |
12366 | * robin fashion. If the next eligible FCF record index equals to the | |
12367 | * initial round robin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF) | |
12368 | * shall be returned, otherwise, the next eligible FCF record's index | |
12369 | * shall be returned. | |
12370 | **/ | |
12371 | uint16_t | |
12372 | lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba) | |
12373 | { | |
12374 | uint16_t next_fcf_index; | |
12375 | ||
3804dc84 JS |
12376 | /* Search start from next bit of currently registered FCF index */ |
12377 | next_fcf_index = (phba->fcf.current_rec.fcf_indx + 1) % | |
12378 | LPFC_SLI4_FCF_TBL_INDX_MAX; | |
0c9ab6f5 JS |
12379 | next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask, |
12380 | LPFC_SLI4_FCF_TBL_INDX_MAX, | |
3804dc84 JS |
12381 | next_fcf_index); |
12382 | ||
0c9ab6f5 JS |
12383 | /* Wrap around condition on phba->fcf.fcf_rr_bmask */ |
12384 | if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) | |
12385 | next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask, | |
12386 | LPFC_SLI4_FCF_TBL_INDX_MAX, 0); | |
3804dc84 JS |
12387 | |
12388 | /* Check roundrobin failover list empty condition */ | |
12389 | if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { | |
12390 | lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, | |
12391 | "2844 No roundrobin failover FCF available\n"); | |
0c9ab6f5 | 12392 | return LPFC_FCOE_FCF_NEXT_NONE; |
3804dc84 JS |
12393 | } |
12394 | ||
12395 | /* Check roundrobin failover index bmask stop condition */ | |
12396 | if (next_fcf_index == phba->fcf.fcf_rr_init_indx) { | |
12397 | if (!(phba->fcf.fcf_flag & FCF_REDISC_RRU)) { | |
12398 | lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, | |
12399 | "2847 Round robin failover FCF index " | |
12400 | "search hit stop condition:x%x\n", | |
12401 | next_fcf_index); | |
12402 | return LPFC_FCOE_FCF_NEXT_NONE; | |
12403 | } | |
12404 | /* The roundrobin failover index bmask updated, start over */ | |
12405 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP, | |
12406 | "2848 Round robin failover FCF index bmask " | |
12407 | "updated, start over\n"); | |
12408 | spin_lock_irq(&phba->hbalock); | |
12409 | phba->fcf.fcf_flag &= ~FCF_REDISC_RRU; | |
12410 | spin_unlock_irq(&phba->hbalock); | |
12411 | return phba->fcf.fcf_rr_init_indx; | |
12412 | } | |
0c9ab6f5 | 12413 | |
3804dc84 JS |
12414 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
12415 | "2845 Get next round robin failover " | |
12416 | "FCF index x%x\n", next_fcf_index); | |
0c9ab6f5 JS |
12417 | return next_fcf_index; |
12418 | } | |
12419 | ||
12420 | /** | |
12421 | * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index | |
12422 | * @phba: pointer to lpfc hba data structure. | |
12423 | * | |
12424 | * This routine sets the FCF record index in to the eligible bmask for | |
12425 | * round robin failover search. It checks to make sure that the index | |
12426 | * does not go beyond the range of the driver allocated bmask dimension | |
12427 | * before setting the bit. | |
12428 | * | |
12429 | * Returns 0 if the index bit successfully set, otherwise, it returns | |
12430 | * -EINVAL. | |
12431 | **/ | |
12432 | int | |
12433 | lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index) | |
12434 | { | |
12435 | if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { | |
12436 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP, | |
12437 | "2610 HBA FCF index reached driver's " | |
12438 | "book keeping dimension: fcf_index:%d, " | |
12439 | "driver_bmask_max:%d\n", | |
12440 | fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX); | |
12441 | return -EINVAL; | |
12442 | } | |
12443 | /* Set the eligible FCF record index bmask */ | |
12444 | set_bit(fcf_index, phba->fcf.fcf_rr_bmask); | |
12445 | ||
3804dc84 JS |
12446 | /* Set the roundrobin index bmask updated */ |
12447 | spin_lock_irq(&phba->hbalock); | |
12448 | phba->fcf.fcf_flag |= FCF_REDISC_RRU; | |
12449 | spin_unlock_irq(&phba->hbalock); | |
12450 | ||
12451 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP, | |
12452 | "2790 Set FCF index x%x to round robin failover " | |
12453 | "bmask\n", fcf_index); | |
12454 | ||
0c9ab6f5 JS |
12455 | return 0; |
12456 | } | |
12457 | ||
12458 | /** | |
3804dc84 | 12459 | * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index |
0c9ab6f5 JS |
12460 | * @phba: pointer to lpfc hba data structure. |
12461 | * | |
12462 | * This routine clears the FCF record index from the eligible bmask for | |
12463 | * round robin failover search. It checks to make sure that the index | |
12464 | * does not go beyond the range of the driver allocated bmask dimension | |
12465 | * before clearing the bit. | |
12466 | **/ | |
12467 | void | |
12468 | lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index) | |
12469 | { | |
12470 | if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { | |
12471 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP, | |
12472 | "2762 HBA FCF index goes beyond driver's " | |
12473 | "book keeping dimension: fcf_index:%d, " | |
12474 | "driver_bmask_max:%d\n", | |
12475 | fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX); | |
12476 | return; | |
12477 | } | |
12478 | /* Clear the eligible FCF record index bmask */ | |
12479 | clear_bit(fcf_index, phba->fcf.fcf_rr_bmask); | |
3804dc84 JS |
12480 | |
12481 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP, | |
12482 | "2791 Clear FCF index x%x from round robin failover " | |
12483 | "bmask\n", fcf_index); | |
0c9ab6f5 JS |
12484 | } |
12485 | ||
ecfd03c6 JS |
12486 | /** |
12487 | * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table | |
12488 | * @phba: pointer to lpfc hba data structure. | |
12489 | * | |
12490 | * This routine is the completion routine for the rediscover FCF table mailbox | |
12491 | * command. If the mailbox command returned failure, it will try to stop the | |
12492 | * FCF rediscover wait timer. | |
12493 | **/ | |
12494 | void | |
12495 | lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox) | |
12496 | { | |
12497 | struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf; | |
12498 | uint32_t shdr_status, shdr_add_status; | |
12499 | ||
12500 | redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl; | |
12501 | ||
12502 | shdr_status = bf_get(lpfc_mbox_hdr_status, | |
12503 | &redisc_fcf->header.cfg_shdr.response); | |
12504 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, | |
12505 | &redisc_fcf->header.cfg_shdr.response); | |
12506 | if (shdr_status || shdr_add_status) { | |
0c9ab6f5 | 12507 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP, |
ecfd03c6 JS |
12508 | "2746 Requesting for FCF rediscovery failed " |
12509 | "status x%x add_status x%x\n", | |
12510 | shdr_status, shdr_add_status); | |
0c9ab6f5 | 12511 | if (phba->fcf.fcf_flag & FCF_ACVL_DISC) { |
fc2b989b | 12512 | spin_lock_irq(&phba->hbalock); |
0c9ab6f5 | 12513 | phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; |
fc2b989b JS |
12514 | spin_unlock_irq(&phba->hbalock); |
12515 | /* | |
12516 | * CVL event triggered FCF rediscover request failed, | |
12517 | * last resort to re-try current registered FCF entry. | |
12518 | */ | |
12519 | lpfc_retry_pport_discovery(phba); | |
12520 | } else { | |
12521 | spin_lock_irq(&phba->hbalock); | |
0c9ab6f5 | 12522 | phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; |
fc2b989b JS |
12523 | spin_unlock_irq(&phba->hbalock); |
12524 | /* | |
12525 | * DEAD FCF event triggered FCF rediscover request | |
12526 | * failed, last resort to fail over as a link down | |
12527 | * to FCF registration. | |
12528 | */ | |
12529 | lpfc_sli4_fcf_dead_failthrough(phba); | |
12530 | } | |
0c9ab6f5 JS |
12531 | } else { |
12532 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP, | |
12533 | "2775 Start FCF rediscovery quiescent period " | |
12534 | "wait timer before scaning FCF table\n"); | |
ecfd03c6 JS |
12535 | /* |
12536 | * Start FCF rediscovery wait timer for pending FCF | |
12537 | * before rescan FCF record table. | |
12538 | */ | |
12539 | lpfc_fcf_redisc_wait_start_timer(phba); | |
0c9ab6f5 | 12540 | } |
ecfd03c6 JS |
12541 | |
12542 | mempool_free(mbox, phba->mbox_mem_pool); | |
12543 | } | |
12544 | ||
12545 | /** | |
3804dc84 | 12546 | * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port. |
ecfd03c6 JS |
12547 | * @phba: pointer to lpfc hba data structure. |
12548 | * | |
12549 | * This routine is invoked to request for rediscovery of the entire FCF table | |
12550 | * by the port. | |
12551 | **/ | |
12552 | int | |
12553 | lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba) | |
12554 | { | |
12555 | LPFC_MBOXQ_t *mbox; | |
12556 | struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf; | |
12557 | int rc, length; | |
12558 | ||
0c9ab6f5 JS |
12559 | /* Cancel retry delay timers to all vports before FCF rediscover */ |
12560 | lpfc_cancel_all_vport_retry_delay_timer(phba); | |
12561 | ||
ecfd03c6 JS |
12562 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
12563 | if (!mbox) { | |
12564 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
12565 | "2745 Failed to allocate mbox for " | |
12566 | "requesting FCF rediscover.\n"); | |
12567 | return -ENOMEM; | |
12568 | } | |
12569 | ||
12570 | length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) - | |
12571 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
12572 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
12573 | LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF, | |
12574 | length, LPFC_SLI4_MBX_EMBED); | |
12575 | ||
12576 | redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl; | |
12577 | /* Set count to 0 for invalidating the entire FCF database */ | |
12578 | bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0); | |
12579 | ||
12580 | /* Issue the mailbox command asynchronously */ | |
12581 | mbox->vport = phba->pport; | |
12582 | mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table; | |
12583 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); | |
12584 | ||
12585 | if (rc == MBX_NOT_FINISHED) { | |
12586 | mempool_free(mbox, phba->mbox_mem_pool); | |
12587 | return -EIO; | |
12588 | } | |
12589 | return 0; | |
12590 | } | |
12591 | ||
fc2b989b JS |
12592 | /** |
12593 | * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event | |
12594 | * @phba: pointer to lpfc hba data structure. | |
12595 | * | |
12596 | * This function is the failover routine as a last resort to the FCF DEAD | |
12597 | * event when driver failed to perform fast FCF failover. | |
12598 | **/ | |
12599 | void | |
12600 | lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba) | |
12601 | { | |
12602 | uint32_t link_state; | |
12603 | ||
12604 | /* | |
12605 | * Last resort as FCF DEAD event failover will treat this as | |
12606 | * a link down, but save the link state because we don't want | |
12607 | * it to be changed to Link Down unless it is already down. | |
12608 | */ | |
12609 | link_state = phba->link_state; | |
12610 | lpfc_linkdown(phba); | |
12611 | phba->link_state = link_state; | |
12612 | ||
12613 | /* Unregister FCF if no devices connected to it */ | |
12614 | lpfc_unregister_unused_fcf(phba); | |
12615 | } | |
12616 | ||
a0c87cbd JS |
12617 | /** |
12618 | * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled. | |
12619 | * @phba: pointer to lpfc hba data structure. | |
12620 | * | |
12621 | * This function read region 23 and parse TLV for port status to | |
12622 | * decide if the user disaled the port. If the TLV indicates the | |
12623 | * port is disabled, the hba_flag is set accordingly. | |
12624 | **/ | |
12625 | void | |
12626 | lpfc_sli_read_link_ste(struct lpfc_hba *phba) | |
12627 | { | |
12628 | LPFC_MBOXQ_t *pmb = NULL; | |
12629 | MAILBOX_t *mb; | |
12630 | uint8_t *rgn23_data = NULL; | |
12631 | uint32_t offset = 0, data_size, sub_tlv_len, tlv_offset; | |
12632 | int rc; | |
12633 | ||
12634 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
12635 | if (!pmb) { | |
12636 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
12637 | "2600 lpfc_sli_read_serdes_param failed to" | |
12638 | " allocate mailbox memory\n"); | |
12639 | goto out; | |
12640 | } | |
12641 | mb = &pmb->u.mb; | |
12642 | ||
12643 | /* Get adapter Region 23 data */ | |
12644 | rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL); | |
12645 | if (!rgn23_data) | |
12646 | goto out; | |
12647 | ||
12648 | do { | |
12649 | lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23); | |
12650 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
12651 | ||
12652 | if (rc != MBX_SUCCESS) { | |
12653 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
12654 | "2601 lpfc_sli_read_link_ste failed to" | |
12655 | " read config region 23 rc 0x%x Status 0x%x\n", | |
12656 | rc, mb->mbxStatus); | |
12657 | mb->un.varDmp.word_cnt = 0; | |
12658 | } | |
12659 | /* | |
12660 | * dump mem may return a zero when finished or we got a | |
12661 | * mailbox error, either way we are done. | |
12662 | */ | |
12663 | if (mb->un.varDmp.word_cnt == 0) | |
12664 | break; | |
12665 | if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset) | |
12666 | mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset; | |
12667 | ||
12668 | lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, | |
12669 | rgn23_data + offset, | |
12670 | mb->un.varDmp.word_cnt); | |
12671 | offset += mb->un.varDmp.word_cnt; | |
12672 | } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE); | |
12673 | ||
12674 | data_size = offset; | |
12675 | offset = 0; | |
12676 | ||
12677 | if (!data_size) | |
12678 | goto out; | |
12679 | ||
12680 | /* Check the region signature first */ | |
12681 | if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) { | |
12682 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
12683 | "2619 Config region 23 has bad signature\n"); | |
12684 | goto out; | |
12685 | } | |
12686 | offset += 4; | |
12687 | ||
12688 | /* Check the data structure version */ | |
12689 | if (rgn23_data[offset] != LPFC_REGION23_VERSION) { | |
12690 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
12691 | "2620 Config region 23 has bad version\n"); | |
12692 | goto out; | |
12693 | } | |
12694 | offset += 4; | |
12695 | ||
12696 | /* Parse TLV entries in the region */ | |
12697 | while (offset < data_size) { | |
12698 | if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) | |
12699 | break; | |
12700 | /* | |
12701 | * If the TLV is not driver specific TLV or driver id is | |
12702 | * not linux driver id, skip the record. | |
12703 | */ | |
12704 | if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) || | |
12705 | (rgn23_data[offset + 2] != LINUX_DRIVER_ID) || | |
12706 | (rgn23_data[offset + 3] != 0)) { | |
12707 | offset += rgn23_data[offset + 1] * 4 + 4; | |
12708 | continue; | |
12709 | } | |
12710 | ||
12711 | /* Driver found a driver specific TLV in the config region */ | |
12712 | sub_tlv_len = rgn23_data[offset + 1] * 4; | |
12713 | offset += 4; | |
12714 | tlv_offset = 0; | |
12715 | ||
12716 | /* | |
12717 | * Search for configured port state sub-TLV. | |
12718 | */ | |
12719 | while ((offset < data_size) && | |
12720 | (tlv_offset < sub_tlv_len)) { | |
12721 | if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) { | |
12722 | offset += 4; | |
12723 | tlv_offset += 4; | |
12724 | break; | |
12725 | } | |
12726 | if (rgn23_data[offset] != PORT_STE_TYPE) { | |
12727 | offset += rgn23_data[offset + 1] * 4 + 4; | |
12728 | tlv_offset += rgn23_data[offset + 1] * 4 + 4; | |
12729 | continue; | |
12730 | } | |
12731 | ||
12732 | /* This HBA contains PORT_STE configured */ | |
12733 | if (!rgn23_data[offset + 2]) | |
12734 | phba->hba_flag |= LINK_DISABLED; | |
12735 | ||
12736 | goto out; | |
12737 | } | |
12738 | } | |
12739 | out: | |
12740 | if (pmb) | |
12741 | mempool_free(pmb, phba->mbox_mem_pool); | |
12742 | kfree(rgn23_data); | |
12743 | return; | |
12744 | } | |
695a814e JS |
12745 | |
12746 | /** | |
12747 | * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands. | |
12748 | * @vport: pointer to vport data structure. | |
12749 | * | |
12750 | * This function iterate through the mailboxq and clean up all REG_LOGIN | |
12751 | * and REG_VPI mailbox commands associated with the vport. This function | |
12752 | * is called when driver want to restart discovery of the vport due to | |
12753 | * a Clear Virtual Link event. | |
12754 | **/ | |
12755 | void | |
12756 | lpfc_cleanup_pending_mbox(struct lpfc_vport *vport) | |
12757 | { | |
12758 | struct lpfc_hba *phba = vport->phba; | |
12759 | LPFC_MBOXQ_t *mb, *nextmb; | |
12760 | struct lpfc_dmabuf *mp; | |
78730cfe | 12761 | struct lpfc_nodelist *ndlp; |
d439d286 | 12762 | struct lpfc_nodelist *act_mbx_ndlp = NULL; |
589a52d6 | 12763 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
d439d286 | 12764 | LIST_HEAD(mbox_cmd_list); |
695a814e | 12765 | |
d439d286 | 12766 | /* Clean up internally queued mailbox commands with the vport */ |
695a814e JS |
12767 | spin_lock_irq(&phba->hbalock); |
12768 | list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { | |
12769 | if (mb->vport != vport) | |
12770 | continue; | |
12771 | ||
12772 | if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) && | |
12773 | (mb->u.mb.mbxCommand != MBX_REG_VPI)) | |
12774 | continue; | |
12775 | ||
d439d286 JS |
12776 | list_del(&mb->list); |
12777 | list_add_tail(&mb->list, &mbox_cmd_list); | |
12778 | } | |
12779 | /* Clean up active mailbox command with the vport */ | |
12780 | mb = phba->sli.mbox_active; | |
12781 | if (mb && (mb->vport == vport)) { | |
12782 | if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) || | |
12783 | (mb->u.mb.mbxCommand == MBX_REG_VPI)) | |
12784 | mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
12785 | if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) { | |
12786 | act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2; | |
12787 | /* Put reference count for delayed processing */ | |
12788 | act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp); | |
12789 | /* Unregister the RPI when mailbox complete */ | |
12790 | mb->mbox_flag |= LPFC_MBX_IMED_UNREG; | |
12791 | } | |
12792 | } | |
12793 | spin_unlock_irq(&phba->hbalock); | |
12794 | ||
12795 | /* Release the cleaned-up mailbox commands */ | |
12796 | while (!list_empty(&mbox_cmd_list)) { | |
12797 | list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list); | |
695a814e | 12798 | if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) { |
d7c47992 JS |
12799 | if (phba->sli_rev == LPFC_SLI_REV4) |
12800 | __lpfc_sli4_free_rpi(phba, | |
12801 | mb->u.mb.un.varRegLogin.rpi); | |
695a814e JS |
12802 | mp = (struct lpfc_dmabuf *) (mb->context1); |
12803 | if (mp) { | |
12804 | __lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
12805 | kfree(mp); | |
12806 | } | |
78730cfe | 12807 | ndlp = (struct lpfc_nodelist *) mb->context2; |
d439d286 | 12808 | mb->context2 = NULL; |
78730cfe | 12809 | if (ndlp) { |
ec21b3b0 | 12810 | spin_lock(shost->host_lock); |
589a52d6 | 12811 | ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; |
ec21b3b0 | 12812 | spin_unlock(shost->host_lock); |
78730cfe | 12813 | lpfc_nlp_put(ndlp); |
78730cfe | 12814 | } |
695a814e | 12815 | } |
695a814e JS |
12816 | mempool_free(mb, phba->mbox_mem_pool); |
12817 | } | |
d439d286 JS |
12818 | |
12819 | /* Release the ndlp with the cleaned-up active mailbox command */ | |
12820 | if (act_mbx_ndlp) { | |
12821 | spin_lock(shost->host_lock); | |
12822 | act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; | |
12823 | spin_unlock(shost->host_lock); | |
12824 | lpfc_nlp_put(act_mbx_ndlp); | |
695a814e | 12825 | } |
695a814e JS |
12826 | } |
12827 | ||
2a9bf3d0 JS |
12828 | /** |
12829 | * lpfc_drain_txq - Drain the txq | |
12830 | * @phba: Pointer to HBA context object. | |
12831 | * | |
12832 | * This function attempt to submit IOCBs on the txq | |
12833 | * to the adapter. For SLI4 adapters, the txq contains | |
12834 | * ELS IOCBs that have been deferred because the there | |
12835 | * are no SGLs. This congestion can occur with large | |
12836 | * vport counts during node discovery. | |
12837 | **/ | |
12838 | ||
12839 | uint32_t | |
12840 | lpfc_drain_txq(struct lpfc_hba *phba) | |
12841 | { | |
12842 | LIST_HEAD(completions); | |
12843 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
12844 | struct lpfc_iocbq *piocbq = 0; | |
12845 | unsigned long iflags = 0; | |
12846 | char *fail_msg = NULL; | |
12847 | struct lpfc_sglq *sglq; | |
12848 | union lpfc_wqe wqe; | |
12849 | ||
12850 | spin_lock_irqsave(&phba->hbalock, iflags); | |
12851 | if (pring->txq_cnt > pring->txq_max) | |
12852 | pring->txq_max = pring->txq_cnt; | |
12853 | ||
12854 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
12855 | ||
12856 | while (pring->txq_cnt) { | |
12857 | spin_lock_irqsave(&phba->hbalock, iflags); | |
12858 | ||
12859 | sglq = __lpfc_sli_get_sglq(phba); | |
12860 | if (!sglq) { | |
12861 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
12862 | break; | |
12863 | } else { | |
12864 | piocbq = lpfc_sli_ringtx_get(phba, pring); | |
12865 | if (!piocbq) { | |
12866 | /* The txq_cnt out of sync. This should | |
12867 | * never happen | |
12868 | */ | |
12869 | sglq = __lpfc_clear_active_sglq(phba, | |
12870 | sglq->sli4_xritag); | |
12871 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
12872 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
12873 | "2823 txq empty and txq_cnt is %d\n ", | |
12874 | pring->txq_cnt); | |
12875 | break; | |
12876 | } | |
12877 | } | |
12878 | ||
12879 | /* The xri and iocb resources secured, | |
12880 | * attempt to issue request | |
12881 | */ | |
12882 | piocbq->sli4_xritag = sglq->sli4_xritag; | |
12883 | if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq)) | |
12884 | fail_msg = "to convert bpl to sgl"; | |
12885 | else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe)) | |
12886 | fail_msg = "to convert iocb to wqe"; | |
12887 | else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe)) | |
12888 | fail_msg = " - Wq is full"; | |
12889 | else | |
12890 | lpfc_sli_ringtxcmpl_put(phba, pring, piocbq); | |
12891 | ||
12892 | if (fail_msg) { | |
12893 | /* Failed means we can't issue and need to cancel */ | |
12894 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
12895 | "2822 IOCB failed %s iotag 0x%x " | |
12896 | "xri 0x%x\n", | |
12897 | fail_msg, | |
12898 | piocbq->iotag, piocbq->sli4_xritag); | |
12899 | list_add_tail(&piocbq->list, &completions); | |
12900 | } | |
12901 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
12902 | } | |
12903 | ||
2a9bf3d0 JS |
12904 | /* Cancel all the IOCBs that cannot be issued */ |
12905 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
12906 | IOERR_SLI_ABORTED); | |
12907 | ||
12908 | return pring->txq_cnt; | |
12909 | } |