blob: 8d666d9fabb44338c32d72f5454f248970810b22 [file] [log] [blame]
dea31012005-04-17 16:05:31 -05001/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
James.Smart@Emulex.Comc44ce172005-06-25 10:34:39 -04003 * Fibre Channel Host Bus Adapters. *
James Smartd8e93df2009-05-22 14:53:05 -04004 * Copyright (C) 2004-2009 Emulex. All rights reserved. *
James.Smart@Emulex.Comc44ce172005-06-25 10:34:39 -04005 * EMULEX and SLI are trademarks of Emulex. *
dea31012005-04-17 16:05:31 -05006 * www.emulex.com *
James.Smart@Emulex.Comc44ce172005-06-25 10:34:39 -04007 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea31012005-04-17 16:05:31 -05008 * *
9 * This program is free software; you can redistribute it and/or *
James.Smart@Emulex.Comc44ce172005-06-25 10:34:39 -040010 * 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. *
dea31012005-04-17 16:05:31 -050020 *******************************************************************/
21
dea31012005-04-17 16:05:31 -050022#include <linux/blkdev.h>
23#include <linux/pci.h>
24#include <linux/interrupt.h>
25#include <linux/delay.h>
26
James.Smart@Emulex.Com91886522005-08-10 15:03:09 -040027#include <scsi/scsi.h>
dea31012005-04-17 16:05:31 -050028#include <scsi/scsi_cmnd.h>
29#include <scsi/scsi_device.h>
30#include <scsi/scsi_host.h>
James.Smart@Emulex.Comf888ba32005-08-10 15:03:01 -040031#include <scsi/scsi_transport_fc.h>
James Smartda0436e2009-05-22 14:51:39 -040032#include <scsi/fc/fc_fs.h>
James Smart0d878412009-10-02 15:16:56 -040033#include <linux/aer.h>
dea31012005-04-17 16:05:31 -050034
James Smartda0436e2009-05-22 14:51:39 -040035#include "lpfc_hw4.h"
dea31012005-04-17 16:05:31 -050036#include "lpfc_hw.h"
37#include "lpfc_sli.h"
James Smartda0436e2009-05-22 14:51:39 -040038#include "lpfc_sli4.h"
James Smartea2151b2008-09-07 11:52:10 -040039#include "lpfc_nl.h"
dea31012005-04-17 16:05:31 -050040#include "lpfc_disc.h"
41#include "lpfc_scsi.h"
42#include "lpfc.h"
43#include "lpfc_crtn.h"
44#include "lpfc_logmsg.h"
45#include "lpfc_compat.h"
James Smart858c9f62007-06-17 19:56:39 -050046#include "lpfc_debugfs.h"
James Smart04c68492009-05-22 14:52:52 -040047#include "lpfc_vport.h"
dea31012005-04-17 16:05:31 -050048
49/* There are only four IOCB completion types. */
50typedef enum _lpfc_iocb_type {
51 LPFC_UNKNOWN_IOCB,
52 LPFC_UNSOL_IOCB,
53 LPFC_SOL_IOCB,
54 LPFC_ABORT_IOCB
55} lpfc_iocb_type;
56
James Smart4f774512009-05-22 14:52:35 -040057
58/* Provide function prototypes local to this module. */
59static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
60 uint32_t);
61static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
James Smart45ed1192009-10-02 15:17:02 -040062 uint8_t *, uint32_t *);
63static struct lpfc_iocbq *lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *,
64 struct lpfc_iocbq *);
James Smart6669f9b2009-10-02 15:16:45 -040065static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *,
66 struct hbq_dmabuf *);
James Smart4f774512009-05-22 14:52:35 -040067static IOCB_t *
68lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
69{
70 return &iocbq->iocb;
71}
72
73/**
74 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
75 * @q: The Work Queue to operate on.
76 * @wqe: The work Queue Entry to put on the Work queue.
77 *
78 * This routine will copy the contents of @wqe to the next available entry on
79 * the @q. This function will then ring the Work Queue Doorbell to signal the
80 * HBA to start processing the Work Queue Entry. This function returns 0 if
81 * successful. If no entries are available on @q then this function will return
82 * -ENOMEM.
83 * The caller is expected to hold the hbalock when calling this routine.
84 **/
85static uint32_t
86lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
87{
88 union lpfc_wqe *temp_wqe = q->qe[q->host_index].wqe;
89 struct lpfc_register doorbell;
90 uint32_t host_index;
91
92 /* If the host has not yet processed the next entry then we are done */
93 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
94 return -ENOMEM;
95 /* set consumption flag every once in a while */
96 if (!((q->host_index + 1) % LPFC_RELEASE_NOTIFICATION_INTERVAL))
97 bf_set(lpfc_wqe_gen_wqec, &wqe->generic, 1);
98
99 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
100
101 /* Update the host index before invoking device */
102 host_index = q->host_index;
103 q->host_index = ((q->host_index + 1) % q->entry_count);
104
105 /* Ring Doorbell */
106 doorbell.word0 = 0;
107 bf_set(lpfc_wq_doorbell_num_posted, &doorbell, 1);
108 bf_set(lpfc_wq_doorbell_index, &doorbell, host_index);
109 bf_set(lpfc_wq_doorbell_id, &doorbell, q->queue_id);
110 writel(doorbell.word0, q->phba->sli4_hba.WQDBregaddr);
111 readl(q->phba->sli4_hba.WQDBregaddr); /* Flush */
112
113 return 0;
114}
115
116/**
117 * lpfc_sli4_wq_release - Updates internal hba index for WQ
118 * @q: The Work Queue to operate on.
119 * @index: The index to advance the hba index to.
120 *
121 * This routine will update the HBA index of a queue to reflect consumption of
122 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
123 * an entry the host calls this function to update the queue's internal
124 * pointers. This routine returns the number of entries that were consumed by
125 * the HBA.
126 **/
127static uint32_t
128lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
129{
130 uint32_t released = 0;
131
132 if (q->hba_index == index)
133 return 0;
134 do {
135 q->hba_index = ((q->hba_index + 1) % q->entry_count);
136 released++;
137 } while (q->hba_index != index);
138 return released;
139}
140
141/**
142 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
143 * @q: The Mailbox Queue to operate on.
144 * @wqe: The Mailbox Queue Entry to put on the Work queue.
145 *
146 * This routine will copy the contents of @mqe to the next available entry on
147 * the @q. This function will then ring the Work Queue Doorbell to signal the
148 * HBA to start processing the Work Queue Entry. This function returns 0 if
149 * successful. If no entries are available on @q then this function will return
150 * -ENOMEM.
151 * The caller is expected to hold the hbalock when calling this routine.
152 **/
153static uint32_t
154lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
155{
156 struct lpfc_mqe *temp_mqe = q->qe[q->host_index].mqe;
157 struct lpfc_register doorbell;
158 uint32_t host_index;
159
160 /* If the host has not yet processed the next entry then we are done */
161 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
162 return -ENOMEM;
163 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
164 /* Save off the mailbox pointer for completion */
165 q->phba->mbox = (MAILBOX_t *)temp_mqe;
166
167 /* Update the host index before invoking device */
168 host_index = q->host_index;
169 q->host_index = ((q->host_index + 1) % q->entry_count);
170
171 /* Ring Doorbell */
172 doorbell.word0 = 0;
173 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
174 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
175 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
176 readl(q->phba->sli4_hba.MQDBregaddr); /* Flush */
177 return 0;
178}
179
180/**
181 * lpfc_sli4_mq_release - Updates internal hba index for MQ
182 * @q: The Mailbox Queue to operate on.
183 *
184 * This routine will update the HBA index of a queue to reflect consumption of
185 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
186 * an entry the host calls this function to update the queue's internal
187 * pointers. This routine returns the number of entries that were consumed by
188 * the HBA.
189 **/
190static uint32_t
191lpfc_sli4_mq_release(struct lpfc_queue *q)
192{
193 /* Clear the mailbox pointer for completion */
194 q->phba->mbox = NULL;
195 q->hba_index = ((q->hba_index + 1) % q->entry_count);
196 return 1;
197}
198
199/**
200 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
201 * @q: The Event Queue to get the first valid EQE from
202 *
203 * This routine will get the first valid Event Queue Entry from @q, update
204 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
205 * the Queue (no more work to do), or the Queue is full of EQEs that have been
206 * processed, but not popped back to the HBA then this routine will return NULL.
207 **/
208static struct lpfc_eqe *
209lpfc_sli4_eq_get(struct lpfc_queue *q)
210{
211 struct lpfc_eqe *eqe = q->qe[q->hba_index].eqe;
212
213 /* If the next EQE is not valid then we are done */
214 if (!bf_get(lpfc_eqe_valid, eqe))
215 return NULL;
216 /* If the host has not yet processed the next entry then we are done */
217 if (((q->hba_index + 1) % q->entry_count) == q->host_index)
218 return NULL;
219
220 q->hba_index = ((q->hba_index + 1) % q->entry_count);
221 return eqe;
222}
223
224/**
225 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
226 * @q: The Event Queue that the host has completed processing for.
227 * @arm: Indicates whether the host wants to arms this CQ.
228 *
229 * This routine will mark all Event Queue Entries on @q, from the last
230 * known completed entry to the last entry that was processed, as completed
231 * by clearing the valid bit for each completion queue entry. Then it will
232 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
233 * The internal host index in the @q will be updated by this routine to indicate
234 * that the host has finished processing the entries. The @arm parameter
235 * indicates that the queue should be rearmed when ringing the doorbell.
236 *
237 * This function will return the number of EQEs that were popped.
238 **/
239uint32_t
240lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
241{
242 uint32_t released = 0;
243 struct lpfc_eqe *temp_eqe;
244 struct lpfc_register doorbell;
245
246 /* while there are valid entries */
247 while (q->hba_index != q->host_index) {
248 temp_eqe = q->qe[q->host_index].eqe;
249 bf_set(lpfc_eqe_valid, temp_eqe, 0);
250 released++;
251 q->host_index = ((q->host_index + 1) % q->entry_count);
252 }
253 if (unlikely(released == 0 && !arm))
254 return 0;
255
256 /* ring doorbell for number popped */
257 doorbell.word0 = 0;
258 if (arm) {
259 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
260 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
261 }
262 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
263 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
264 bf_set(lpfc_eqcq_doorbell_eqid, &doorbell, q->queue_id);
265 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
James Smarta747c9c2009-11-18 15:41:10 -0500266 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
267 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
268 readl(q->phba->sli4_hba.EQCQDBregaddr);
James Smart4f774512009-05-22 14:52:35 -0400269 return released;
270}
271
272/**
273 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
274 * @q: The Completion Queue to get the first valid CQE from
275 *
276 * This routine will get the first valid Completion Queue Entry from @q, update
277 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
278 * the Queue (no more work to do), or the Queue is full of CQEs that have been
279 * processed, but not popped back to the HBA then this routine will return NULL.
280 **/
281static struct lpfc_cqe *
282lpfc_sli4_cq_get(struct lpfc_queue *q)
283{
284 struct lpfc_cqe *cqe;
285
286 /* If the next CQE is not valid then we are done */
287 if (!bf_get(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
288 return NULL;
289 /* If the host has not yet processed the next entry then we are done */
290 if (((q->hba_index + 1) % q->entry_count) == q->host_index)
291 return NULL;
292
293 cqe = q->qe[q->hba_index].cqe;
294 q->hba_index = ((q->hba_index + 1) % q->entry_count);
295 return cqe;
296}
297
298/**
299 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
300 * @q: The Completion Queue that the host has completed processing for.
301 * @arm: Indicates whether the host wants to arms this CQ.
302 *
303 * This routine will mark all Completion queue entries on @q, from the last
304 * known completed entry to the last entry that was processed, as completed
305 * by clearing the valid bit for each completion queue entry. Then it will
306 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
307 * The internal host index in the @q will be updated by this routine to indicate
308 * that the host has finished processing the entries. The @arm parameter
309 * indicates that the queue should be rearmed when ringing the doorbell.
310 *
311 * This function will return the number of CQEs that were released.
312 **/
313uint32_t
314lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
315{
316 uint32_t released = 0;
317 struct lpfc_cqe *temp_qe;
318 struct lpfc_register doorbell;
319
320 /* while there are valid entries */
321 while (q->hba_index != q->host_index) {
322 temp_qe = q->qe[q->host_index].cqe;
323 bf_set(lpfc_cqe_valid, temp_qe, 0);
324 released++;
325 q->host_index = ((q->host_index + 1) % q->entry_count);
326 }
327 if (unlikely(released == 0 && !arm))
328 return 0;
329
330 /* ring doorbell for number popped */
331 doorbell.word0 = 0;
332 if (arm)
333 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
334 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
335 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
336 bf_set(lpfc_eqcq_doorbell_cqid, &doorbell, q->queue_id);
337 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
338 return released;
339}
340
341/**
342 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
343 * @q: The Header Receive Queue to operate on.
344 * @wqe: The Receive Queue Entry to put on the Receive queue.
345 *
346 * This routine will copy the contents of @wqe to the next available entry on
347 * the @q. This function will then ring the Receive Queue Doorbell to signal the
348 * HBA to start processing the Receive Queue Entry. This function returns the
349 * index that the rqe was copied to if successful. If no entries are available
350 * on @q then this function will return -ENOMEM.
351 * The caller is expected to hold the hbalock when calling this routine.
352 **/
353static int
354lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
355 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
356{
357 struct lpfc_rqe *temp_hrqe = hq->qe[hq->host_index].rqe;
358 struct lpfc_rqe *temp_drqe = dq->qe[dq->host_index].rqe;
359 struct lpfc_register doorbell;
360 int put_index = hq->host_index;
361
362 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
363 return -EINVAL;
364 if (hq->host_index != dq->host_index)
365 return -EINVAL;
366 /* If the host has not yet processed the next entry then we are done */
367 if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
368 return -EBUSY;
369 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
370 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
371
372 /* Update the host index to point to the next slot */
373 hq->host_index = ((hq->host_index + 1) % hq->entry_count);
374 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
375
376 /* Ring The Header Receive Queue Doorbell */
377 if (!(hq->host_index % LPFC_RQ_POST_BATCH)) {
378 doorbell.word0 = 0;
379 bf_set(lpfc_rq_doorbell_num_posted, &doorbell,
380 LPFC_RQ_POST_BATCH);
381 bf_set(lpfc_rq_doorbell_id, &doorbell, hq->queue_id);
382 writel(doorbell.word0, hq->phba->sli4_hba.RQDBregaddr);
383 }
384 return put_index;
385}
386
387/**
388 * lpfc_sli4_rq_release - Updates internal hba index for RQ
389 * @q: The Header Receive Queue to operate on.
390 *
391 * This routine will update the HBA index of a queue to reflect consumption of
392 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
393 * consumed an entry the host calls this function to update the queue's
394 * internal pointers. This routine returns the number of entries that were
395 * consumed by the HBA.
396 **/
397static uint32_t
398lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
399{
400 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
401 return 0;
402 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
403 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
404 return 1;
405}
406
James Smarte59058c2008-08-24 21:49:00 -0400407/**
James Smart3621a712009-04-06 18:47:14 -0400408 * lpfc_cmd_iocb - Get next command iocb entry in the ring
James Smarte59058c2008-08-24 21:49:00 -0400409 * @phba: Pointer to HBA context object.
410 * @pring: Pointer to driver SLI ring object.
411 *
412 * This function returns pointer to next command iocb entry
413 * in the command ring. The caller must hold hbalock to prevent
414 * other threads consume the next command iocb.
415 * SLI-2/SLI-3 provide different sized iocbs.
416 **/
James Smarted957682007-06-17 19:56:37 -0500417static inline IOCB_t *
418lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
419{
420 return (IOCB_t *) (((char *) pring->cmdringaddr) +
421 pring->cmdidx * phba->iocb_cmd_size);
422}
423
James Smarte59058c2008-08-24 21:49:00 -0400424/**
James Smart3621a712009-04-06 18:47:14 -0400425 * lpfc_resp_iocb - Get next response iocb entry in the ring
James Smarte59058c2008-08-24 21:49:00 -0400426 * @phba: Pointer to HBA context object.
427 * @pring: Pointer to driver SLI ring object.
428 *
429 * This function returns pointer to next response iocb entry
430 * in the response ring. The caller must hold hbalock to make sure
431 * that no other thread consume the next response iocb.
432 * SLI-2/SLI-3 provide different sized iocbs.
433 **/
James Smarted957682007-06-17 19:56:37 -0500434static inline IOCB_t *
435lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
436{
437 return (IOCB_t *) (((char *) pring->rspringaddr) +
438 pring->rspidx * phba->iocb_rsp_size);
439}
440
James Smarte59058c2008-08-24 21:49:00 -0400441/**
James Smart3621a712009-04-06 18:47:14 -0400442 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
James Smarte59058c2008-08-24 21:49:00 -0400443 * @phba: Pointer to HBA context object.
444 *
445 * This function is called with hbalock held. This function
446 * allocates a new driver iocb object from the iocb pool. If the
447 * allocation is successful, it returns pointer to the newly
448 * allocated iocb object else it returns NULL.
449 **/
James Smart2e0fef82007-06-17 19:56:36 -0500450static struct lpfc_iocbq *
451__lpfc_sli_get_iocbq(struct lpfc_hba *phba)
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -0400452{
453 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
454 struct lpfc_iocbq * iocbq = NULL;
455
456 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
457 return iocbq;
458}
459
James Smarte59058c2008-08-24 21:49:00 -0400460/**
James Smartda0436e2009-05-22 14:51:39 -0400461 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
462 * @phba: Pointer to HBA context object.
463 * @xritag: XRI value.
464 *
465 * This function clears the sglq pointer from the array of acive
466 * sglq's. The xritag that is passed in is used to index into the
467 * array. Before the xritag can be used it needs to be adjusted
468 * by subtracting the xribase.
469 *
470 * Returns sglq ponter = success, NULL = Failure.
471 **/
472static struct lpfc_sglq *
473__lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
474{
475 uint16_t adj_xri;
476 struct lpfc_sglq *sglq;
477 adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
478 if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri)
479 return NULL;
480 sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri];
481 phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = NULL;
482 return sglq;
483}
484
485/**
486 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
487 * @phba: Pointer to HBA context object.
488 * @xritag: XRI value.
489 *
490 * This function returns the sglq pointer from the array of acive
491 * sglq's. The xritag that is passed in is used to index into the
492 * array. Before the xritag can be used it needs to be adjusted
493 * by subtracting the xribase.
494 *
495 * Returns sglq ponter = success, NULL = Failure.
496 **/
497static struct lpfc_sglq *
498__lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
499{
500 uint16_t adj_xri;
501 struct lpfc_sglq *sglq;
502 adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
503 if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri)
504 return NULL;
505 sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri];
506 return sglq;
507}
508
509/**
510 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
511 * @phba: Pointer to HBA context object.
512 *
513 * This function is called with hbalock held. This function
514 * Gets a new driver sglq object from the sglq list. If the
515 * list is not empty then it is successful, it returns pointer to the newly
516 * allocated sglq object else it returns NULL.
517 **/
518static struct lpfc_sglq *
519__lpfc_sli_get_sglq(struct lpfc_hba *phba)
520{
521 struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
522 struct lpfc_sglq *sglq = NULL;
523 uint16_t adj_xri;
524 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
James Smart6a9c52c2009-10-02 15:16:51 -0400525 if (!sglq)
526 return NULL;
James Smartda0436e2009-05-22 14:51:39 -0400527 adj_xri = sglq->sli4_xritag - phba->sli4_hba.max_cfg_param.xri_base;
528 phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = sglq;
529 return sglq;
530}
531
532/**
James Smart3621a712009-04-06 18:47:14 -0400533 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
James Smarte59058c2008-08-24 21:49:00 -0400534 * @phba: Pointer to HBA context object.
535 *
536 * This function is called with no lock held. This function
537 * allocates a new driver iocb object from the iocb pool. If the
538 * allocation is successful, it returns pointer to the newly
539 * allocated iocb object else it returns NULL.
540 **/
James Smart2e0fef82007-06-17 19:56:36 -0500541struct lpfc_iocbq *
542lpfc_sli_get_iocbq(struct lpfc_hba *phba)
James Bottomley604a3e32005-10-29 10:28:33 -0500543{
James Smart2e0fef82007-06-17 19:56:36 -0500544 struct lpfc_iocbq * iocbq = NULL;
545 unsigned long iflags;
546
547 spin_lock_irqsave(&phba->hbalock, iflags);
548 iocbq = __lpfc_sli_get_iocbq(phba);
549 spin_unlock_irqrestore(&phba->hbalock, iflags);
550 return iocbq;
551}
552
James Smarte59058c2008-08-24 21:49:00 -0400553/**
James Smart4f774512009-05-22 14:52:35 -0400554 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
555 * @phba: Pointer to HBA context object.
556 * @iocbq: Pointer to driver iocb object.
557 *
558 * This function is called with hbalock held to release driver
559 * iocb object to the iocb pool. The iotag in the iocb object
560 * does not change for each use of the iocb object. This function
561 * clears all other fields of the iocb object when it is freed.
562 * The sqlq structure that holds the xritag and phys and virtual
563 * mappings for the scatter gather list is retrieved from the
564 * active array of sglq. The get of the sglq pointer also clears
565 * the entry in the array. If the status of the IO indiactes that
566 * this IO was aborted then the sglq entry it put on the
567 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
568 * IO has good status or fails for any other reason then the sglq
569 * entry is added to the free list (lpfc_sgl_list).
570 **/
571static void
572__lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
573{
574 struct lpfc_sglq *sglq;
575 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
576 unsigned long iflag;
577
578 if (iocbq->sli4_xritag == NO_XRI)
579 sglq = NULL;
580 else
581 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_xritag);
582 if (sglq) {
James Smart341af102010-01-26 23:07:37 -0500583 if (iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) {
James Smart4f774512009-05-22 14:52:35 -0400584 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
585 iflag);
586 list_add(&sglq->list,
587 &phba->sli4_hba.lpfc_abts_els_sgl_list);
588 spin_unlock_irqrestore(
589 &phba->sli4_hba.abts_sgl_list_lock, iflag);
590 } else
591 list_add(&sglq->list, &phba->sli4_hba.lpfc_sgl_list);
592 }
593
594
595 /*
596 * Clean all volatile data fields, preserve iotag and node struct.
597 */
598 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
599 iocbq->sli4_xritag = NO_XRI;
600 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
601}
602
603/**
James Smart3772a992009-05-22 14:50:54 -0400604 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
605 * @phba: Pointer to HBA context object.
606 * @iocbq: Pointer to driver iocb object.
607 *
608 * This function is called with hbalock held to release driver
609 * iocb object to the iocb pool. The iotag in the iocb object
610 * does not change for each use of the iocb object. This function
611 * clears all other fields of the iocb object when it is freed.
612 **/
613static void
614__lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
615{
616 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
617
618 /*
619 * Clean all volatile data fields, preserve iotag and node struct.
620 */
621 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
622 iocbq->sli4_xritag = NO_XRI;
623 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
624}
625
626/**
James Smart3621a712009-04-06 18:47:14 -0400627 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
James Smarte59058c2008-08-24 21:49:00 -0400628 * @phba: Pointer to HBA context object.
629 * @iocbq: Pointer to driver iocb object.
630 *
631 * This function is called with hbalock held to release driver
632 * iocb object to the iocb pool. The iotag in the iocb object
633 * does not change for each use of the iocb object. This function
634 * clears all other fields of the iocb object when it is freed.
635 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +0100636static void
James Smart2e0fef82007-06-17 19:56:36 -0500637__lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
638{
James Smart3772a992009-05-22 14:50:54 -0400639 phba->__lpfc_sli_release_iocbq(phba, iocbq);
James Bottomley604a3e32005-10-29 10:28:33 -0500640}
641
James Smarte59058c2008-08-24 21:49:00 -0400642/**
James Smart3621a712009-04-06 18:47:14 -0400643 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
James Smarte59058c2008-08-24 21:49:00 -0400644 * @phba: Pointer to HBA context object.
645 * @iocbq: Pointer to driver iocb object.
646 *
647 * This function is called with no lock held to release the iocb to
648 * iocb pool.
649 **/
James Smart2e0fef82007-06-17 19:56:36 -0500650void
651lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
652{
653 unsigned long iflags;
654
655 /*
656 * Clean all volatile data fields, preserve iotag and node struct.
657 */
658 spin_lock_irqsave(&phba->hbalock, iflags);
659 __lpfc_sli_release_iocbq(phba, iocbq);
660 spin_unlock_irqrestore(&phba->hbalock, iflags);
661}
662
James Smarte59058c2008-08-24 21:49:00 -0400663/**
James Smarta257bf92009-04-06 18:48:10 -0400664 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
665 * @phba: Pointer to HBA context object.
666 * @iocblist: List of IOCBs.
667 * @ulpstatus: ULP status in IOCB command field.
668 * @ulpWord4: ULP word-4 in IOCB command field.
669 *
670 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
671 * on the list by invoking the complete callback function associated with the
672 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
673 * fields.
674 **/
675void
676lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
677 uint32_t ulpstatus, uint32_t ulpWord4)
678{
679 struct lpfc_iocbq *piocb;
680
681 while (!list_empty(iocblist)) {
682 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
683
684 if (!piocb->iocb_cmpl)
685 lpfc_sli_release_iocbq(phba, piocb);
686 else {
687 piocb->iocb.ulpStatus = ulpstatus;
688 piocb->iocb.un.ulpWord[4] = ulpWord4;
689 (piocb->iocb_cmpl) (phba, piocb, piocb);
690 }
691 }
692 return;
693}
694
695/**
James Smart3621a712009-04-06 18:47:14 -0400696 * lpfc_sli_iocb_cmd_type - Get the iocb type
697 * @iocb_cmnd: iocb command code.
James Smarte59058c2008-08-24 21:49:00 -0400698 *
699 * This function is called by ring event handler function to get the iocb type.
700 * This function translates the iocb command to an iocb command type used to
701 * decide the final disposition of each completed IOCB.
702 * The function returns
703 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
704 * LPFC_SOL_IOCB if it is a solicited iocb completion
705 * LPFC_ABORT_IOCB if it is an abort iocb
706 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
707 *
708 * The caller is not required to hold any lock.
709 **/
dea31012005-04-17 16:05:31 -0500710static lpfc_iocb_type
711lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
712{
713 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
714
715 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
716 return 0;
717
718 switch (iocb_cmnd) {
719 case CMD_XMIT_SEQUENCE_CR:
720 case CMD_XMIT_SEQUENCE_CX:
721 case CMD_XMIT_BCAST_CN:
722 case CMD_XMIT_BCAST_CX:
723 case CMD_ELS_REQUEST_CR:
724 case CMD_ELS_REQUEST_CX:
725 case CMD_CREATE_XRI_CR:
726 case CMD_CREATE_XRI_CX:
727 case CMD_GET_RPI_CN:
728 case CMD_XMIT_ELS_RSP_CX:
729 case CMD_GET_RPI_CR:
730 case CMD_FCP_IWRITE_CR:
731 case CMD_FCP_IWRITE_CX:
732 case CMD_FCP_IREAD_CR:
733 case CMD_FCP_IREAD_CX:
734 case CMD_FCP_ICMND_CR:
735 case CMD_FCP_ICMND_CX:
James Smartf5603512006-12-02 13:35:43 -0500736 case CMD_FCP_TSEND_CX:
737 case CMD_FCP_TRSP_CX:
738 case CMD_FCP_TRECEIVE_CX:
739 case CMD_FCP_AUTO_TRSP_CX:
dea31012005-04-17 16:05:31 -0500740 case CMD_ADAPTER_MSG:
741 case CMD_ADAPTER_DUMP:
742 case CMD_XMIT_SEQUENCE64_CR:
743 case CMD_XMIT_SEQUENCE64_CX:
744 case CMD_XMIT_BCAST64_CN:
745 case CMD_XMIT_BCAST64_CX:
746 case CMD_ELS_REQUEST64_CR:
747 case CMD_ELS_REQUEST64_CX:
748 case CMD_FCP_IWRITE64_CR:
749 case CMD_FCP_IWRITE64_CX:
750 case CMD_FCP_IREAD64_CR:
751 case CMD_FCP_IREAD64_CX:
752 case CMD_FCP_ICMND64_CR:
753 case CMD_FCP_ICMND64_CX:
James Smartf5603512006-12-02 13:35:43 -0500754 case CMD_FCP_TSEND64_CX:
755 case CMD_FCP_TRSP64_CX:
756 case CMD_FCP_TRECEIVE64_CX:
dea31012005-04-17 16:05:31 -0500757 case CMD_GEN_REQUEST64_CR:
758 case CMD_GEN_REQUEST64_CX:
759 case CMD_XMIT_ELS_RSP64_CX:
James Smartda0436e2009-05-22 14:51:39 -0400760 case DSSCMD_IWRITE64_CR:
761 case DSSCMD_IWRITE64_CX:
762 case DSSCMD_IREAD64_CR:
763 case DSSCMD_IREAD64_CX:
dea31012005-04-17 16:05:31 -0500764 type = LPFC_SOL_IOCB;
765 break;
766 case CMD_ABORT_XRI_CN:
767 case CMD_ABORT_XRI_CX:
768 case CMD_CLOSE_XRI_CN:
769 case CMD_CLOSE_XRI_CX:
770 case CMD_XRI_ABORTED_CX:
771 case CMD_ABORT_MXRI64_CN:
James Smart6669f9b2009-10-02 15:16:45 -0400772 case CMD_XMIT_BLS_RSP64_CX:
dea31012005-04-17 16:05:31 -0500773 type = LPFC_ABORT_IOCB;
774 break;
775 case CMD_RCV_SEQUENCE_CX:
776 case CMD_RCV_ELS_REQ_CX:
777 case CMD_RCV_SEQUENCE64_CX:
778 case CMD_RCV_ELS_REQ64_CX:
James Smart57127f12007-10-27 13:37:05 -0400779 case CMD_ASYNC_STATUS:
James Smarted957682007-06-17 19:56:37 -0500780 case CMD_IOCB_RCV_SEQ64_CX:
781 case CMD_IOCB_RCV_ELS64_CX:
782 case CMD_IOCB_RCV_CONT64_CX:
James Smart3163f722008-02-08 18:50:25 -0500783 case CMD_IOCB_RET_XRI64_CX:
dea31012005-04-17 16:05:31 -0500784 type = LPFC_UNSOL_IOCB;
785 break;
James Smart3163f722008-02-08 18:50:25 -0500786 case CMD_IOCB_XMIT_MSEQ64_CR:
787 case CMD_IOCB_XMIT_MSEQ64_CX:
788 case CMD_IOCB_RCV_SEQ_LIST64_CX:
789 case CMD_IOCB_RCV_ELS_LIST64_CX:
790 case CMD_IOCB_CLOSE_EXTENDED_CN:
791 case CMD_IOCB_ABORT_EXTENDED_CN:
792 case CMD_IOCB_RET_HBQE64_CN:
793 case CMD_IOCB_FCP_IBIDIR64_CR:
794 case CMD_IOCB_FCP_IBIDIR64_CX:
795 case CMD_IOCB_FCP_ITASKMGT64_CX:
796 case CMD_IOCB_LOGENTRY_CN:
797 case CMD_IOCB_LOGENTRY_ASYNC_CN:
798 printk("%s - Unhandled SLI-3 Command x%x\n",
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -0700799 __func__, iocb_cmnd);
James Smart3163f722008-02-08 18:50:25 -0500800 type = LPFC_UNKNOWN_IOCB;
801 break;
dea31012005-04-17 16:05:31 -0500802 default:
803 type = LPFC_UNKNOWN_IOCB;
804 break;
805 }
806
807 return type;
808}
809
James Smarte59058c2008-08-24 21:49:00 -0400810/**
James Smart3621a712009-04-06 18:47:14 -0400811 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
James Smarte59058c2008-08-24 21:49:00 -0400812 * @phba: Pointer to HBA context object.
813 *
814 * This function is called from SLI initialization code
815 * to configure every ring of the HBA's SLI interface. The
816 * caller is not required to hold any lock. This function issues
817 * a config_ring mailbox command for each ring.
818 * This function returns zero if successful else returns a negative
819 * error code.
820 **/
dea31012005-04-17 16:05:31 -0500821static int
James Smarted957682007-06-17 19:56:37 -0500822lpfc_sli_ring_map(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -0500823{
824 struct lpfc_sli *psli = &phba->sli;
James Smarted957682007-06-17 19:56:37 -0500825 LPFC_MBOXQ_t *pmb;
826 MAILBOX_t *pmbox;
827 int i, rc, ret = 0;
dea31012005-04-17 16:05:31 -0500828
James Smarted957682007-06-17 19:56:37 -0500829 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
830 if (!pmb)
831 return -ENOMEM;
James Smart04c68492009-05-22 14:52:52 -0400832 pmbox = &pmb->u.mb;
James Smarted957682007-06-17 19:56:37 -0500833 phba->link_state = LPFC_INIT_MBX_CMDS;
dea31012005-04-17 16:05:31 -0500834 for (i = 0; i < psli->num_rings; i++) {
dea31012005-04-17 16:05:31 -0500835 lpfc_config_ring(phba, i, pmb);
836 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
837 if (rc != MBX_SUCCESS) {
James Smart92d7f7b2007-06-17 19:56:38 -0500838 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -0400839 "0446 Adapter failed to init (%d), "
dea31012005-04-17 16:05:31 -0500840 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
841 "ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -0400842 rc, pmbox->mbxCommand,
843 pmbox->mbxStatus, i);
James Smart2e0fef82007-06-17 19:56:36 -0500844 phba->link_state = LPFC_HBA_ERROR;
James Smarted957682007-06-17 19:56:37 -0500845 ret = -ENXIO;
846 break;
dea31012005-04-17 16:05:31 -0500847 }
848 }
James Smarted957682007-06-17 19:56:37 -0500849 mempool_free(pmb, phba->mbox_mem_pool);
850 return ret;
dea31012005-04-17 16:05:31 -0500851}
852
James Smarte59058c2008-08-24 21:49:00 -0400853/**
James Smart3621a712009-04-06 18:47:14 -0400854 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
James Smarte59058c2008-08-24 21:49:00 -0400855 * @phba: Pointer to HBA context object.
856 * @pring: Pointer to driver SLI ring object.
857 * @piocb: Pointer to the driver iocb object.
858 *
859 * This function is called with hbalock held. The function adds the
860 * new iocb to txcmplq of the given ring. This function always returns
861 * 0. If this function is called for ELS ring, this function checks if
862 * there is a vport associated with the ELS command. This function also
863 * starts els_tmofunc timer if this is an ELS command.
864 **/
dea31012005-04-17 16:05:31 -0500865static int
James Smart2e0fef82007-06-17 19:56:36 -0500866lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
867 struct lpfc_iocbq *piocb)
dea31012005-04-17 16:05:31 -0500868{
dea31012005-04-17 16:05:31 -0500869 list_add_tail(&piocb->list, &pring->txcmplq);
870 pring->txcmplq_cnt++;
James Smart92d7f7b2007-06-17 19:56:38 -0500871 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
872 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
873 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
874 if (!piocb->vport)
875 BUG();
876 else
877 mod_timer(&piocb->vport->els_tmofunc,
878 jiffies + HZ * (phba->fc_ratov << 1));
879 }
880
dea31012005-04-17 16:05:31 -0500881
James Smart2e0fef82007-06-17 19:56:36 -0500882 return 0;
dea31012005-04-17 16:05:31 -0500883}
884
James Smarte59058c2008-08-24 21:49:00 -0400885/**
James Smart3621a712009-04-06 18:47:14 -0400886 * lpfc_sli_ringtx_get - Get first element of the txq
James Smarte59058c2008-08-24 21:49:00 -0400887 * @phba: Pointer to HBA context object.
888 * @pring: Pointer to driver SLI ring object.
889 *
890 * This function is called with hbalock held to get next
891 * iocb in txq of the given ring. If there is any iocb in
892 * the txq, the function returns first iocb in the list after
893 * removing the iocb from the list, else it returns NULL.
894 **/
dea31012005-04-17 16:05:31 -0500895static struct lpfc_iocbq *
James Smart2e0fef82007-06-17 19:56:36 -0500896lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -0500897{
dea31012005-04-17 16:05:31 -0500898 struct lpfc_iocbq *cmd_iocb;
899
James Smart858c9f62007-06-17 19:56:39 -0500900 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
901 if (cmd_iocb != NULL)
dea31012005-04-17 16:05:31 -0500902 pring->txq_cnt--;
James Smart2e0fef82007-06-17 19:56:36 -0500903 return cmd_iocb;
dea31012005-04-17 16:05:31 -0500904}
905
James Smarte59058c2008-08-24 21:49:00 -0400906/**
James Smart3621a712009-04-06 18:47:14 -0400907 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
James Smarte59058c2008-08-24 21:49:00 -0400908 * @phba: Pointer to HBA context object.
909 * @pring: Pointer to driver SLI ring object.
910 *
911 * This function is called with hbalock held and the caller must post the
912 * iocb without releasing the lock. If the caller releases the lock,
913 * iocb slot returned by the function is not guaranteed to be available.
914 * The function returns pointer to the next available iocb slot if there
915 * is available slot in the ring, else it returns NULL.
916 * If the get index of the ring is ahead of the put index, the function
917 * will post an error attention event to the worker thread to take the
918 * HBA to offline state.
919 **/
dea31012005-04-17 16:05:31 -0500920static IOCB_t *
921lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
922{
James Smart34b02dc2008-08-24 21:49:55 -0400923 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
dea31012005-04-17 16:05:31 -0500924 uint32_t max_cmd_idx = pring->numCiocb;
dea31012005-04-17 16:05:31 -0500925 if ((pring->next_cmdidx == pring->cmdidx) &&
926 (++pring->next_cmdidx >= max_cmd_idx))
927 pring->next_cmdidx = 0;
928
929 if (unlikely(pring->local_getidx == pring->next_cmdidx)) {
930
931 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
932
933 if (unlikely(pring->local_getidx >= max_cmd_idx)) {
934 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -0400935 "0315 Ring %d issue: portCmdGet %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +0200936 "is bigger than cmd ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -0400937 pring->ringno,
dea31012005-04-17 16:05:31 -0500938 pring->local_getidx, max_cmd_idx);
939
James Smart2e0fef82007-06-17 19:56:36 -0500940 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -0500941 /*
942 * All error attention handlers are posted to
943 * worker thread
944 */
945 phba->work_ha |= HA_ERATT;
946 phba->work_hs = HS_FFER3;
James Smart92d7f7b2007-06-17 19:56:38 -0500947
James Smart5e9d9b82008-06-14 22:52:53 -0400948 lpfc_worker_wake_up(phba);
dea31012005-04-17 16:05:31 -0500949
950 return NULL;
951 }
952
953 if (pring->local_getidx == pring->next_cmdidx)
954 return NULL;
955 }
956
James Smarted957682007-06-17 19:56:37 -0500957 return lpfc_cmd_iocb(phba, pring);
dea31012005-04-17 16:05:31 -0500958}
959
James Smarte59058c2008-08-24 21:49:00 -0400960/**
James Smart3621a712009-04-06 18:47:14 -0400961 * lpfc_sli_next_iotag - Get an iotag for the iocb
James Smarte59058c2008-08-24 21:49:00 -0400962 * @phba: Pointer to HBA context object.
963 * @iocbq: Pointer to driver iocb object.
964 *
965 * This function gets an iotag for the iocb. If there is no unused iotag and
966 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
967 * array and assigns a new iotag.
968 * The function returns the allocated iotag if successful, else returns zero.
969 * Zero is not a valid iotag.
970 * The caller is not required to hold any lock.
971 **/
James Bottomley604a3e32005-10-29 10:28:33 -0500972uint16_t
James Smart2e0fef82007-06-17 19:56:36 -0500973lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
dea31012005-04-17 16:05:31 -0500974{
James Smart2e0fef82007-06-17 19:56:36 -0500975 struct lpfc_iocbq **new_arr;
976 struct lpfc_iocbq **old_arr;
James Bottomley604a3e32005-10-29 10:28:33 -0500977 size_t new_len;
978 struct lpfc_sli *psli = &phba->sli;
979 uint16_t iotag;
dea31012005-04-17 16:05:31 -0500980
James Smart2e0fef82007-06-17 19:56:36 -0500981 spin_lock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -0500982 iotag = psli->last_iotag;
983 if(++iotag < psli->iocbq_lookup_len) {
984 psli->last_iotag = iotag;
985 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -0500986 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -0500987 iocbq->iotag = iotag;
988 return iotag;
James Smart2e0fef82007-06-17 19:56:36 -0500989 } else if (psli->iocbq_lookup_len < (0xffff
James Bottomley604a3e32005-10-29 10:28:33 -0500990 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
991 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
James Smart2e0fef82007-06-17 19:56:36 -0500992 spin_unlock_irq(&phba->hbalock);
993 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
James Bottomley604a3e32005-10-29 10:28:33 -0500994 GFP_KERNEL);
995 if (new_arr) {
James Smart2e0fef82007-06-17 19:56:36 -0500996 spin_lock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -0500997 old_arr = psli->iocbq_lookup;
998 if (new_len <= psli->iocbq_lookup_len) {
999 /* highly unprobable case */
1000 kfree(new_arr);
1001 iotag = psli->last_iotag;
1002 if(++iotag < psli->iocbq_lookup_len) {
1003 psli->last_iotag = iotag;
1004 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -05001005 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001006 iocbq->iotag = iotag;
1007 return iotag;
1008 }
James Smart2e0fef82007-06-17 19:56:36 -05001009 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001010 return 0;
1011 }
1012 if (psli->iocbq_lookup)
1013 memcpy(new_arr, old_arr,
1014 ((psli->last_iotag + 1) *
James Smart311464e2007-08-02 11:10:37 -04001015 sizeof (struct lpfc_iocbq *)));
James Bottomley604a3e32005-10-29 10:28:33 -05001016 psli->iocbq_lookup = new_arr;
1017 psli->iocbq_lookup_len = new_len;
1018 psli->last_iotag = iotag;
1019 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -05001020 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001021 iocbq->iotag = iotag;
1022 kfree(old_arr);
1023 return iotag;
1024 }
James Smart8f6d98d2006-08-01 07:34:00 -04001025 } else
James Smart2e0fef82007-06-17 19:56:36 -05001026 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05001027
James Bottomley604a3e32005-10-29 10:28:33 -05001028 lpfc_printf_log(phba, KERN_ERR,LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04001029 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1030 psli->last_iotag);
dea31012005-04-17 16:05:31 -05001031
James Bottomley604a3e32005-10-29 10:28:33 -05001032 return 0;
dea31012005-04-17 16:05:31 -05001033}
1034
James Smarte59058c2008-08-24 21:49:00 -04001035/**
James Smart3621a712009-04-06 18:47:14 -04001036 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
James Smarte59058c2008-08-24 21:49:00 -04001037 * @phba: Pointer to HBA context object.
1038 * @pring: Pointer to driver SLI ring object.
1039 * @iocb: Pointer to iocb slot in the ring.
1040 * @nextiocb: Pointer to driver iocb object which need to be
1041 * posted to firmware.
1042 *
1043 * This function is called with hbalock held to post a new iocb to
1044 * the firmware. This function copies the new iocb to ring iocb slot and
1045 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1046 * a completion call back for this iocb else the function will free the
1047 * iocb object.
1048 **/
dea31012005-04-17 16:05:31 -05001049static void
1050lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1051 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1052{
1053 /*
James Bottomley604a3e32005-10-29 10:28:33 -05001054 * Set up an iotag
dea31012005-04-17 16:05:31 -05001055 */
James Bottomley604a3e32005-10-29 10:28:33 -05001056 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
dea31012005-04-17 16:05:31 -05001057
James Smarte2a0a9d2008-12-04 22:40:02 -05001058
James Smarta58cbd52007-08-02 11:09:43 -04001059 if (pring->ringno == LPFC_ELS_RING) {
1060 lpfc_debugfs_slow_ring_trc(phba,
1061 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1062 *(((uint32_t *) &nextiocb->iocb) + 4),
1063 *(((uint32_t *) &nextiocb->iocb) + 6),
1064 *(((uint32_t *) &nextiocb->iocb) + 7));
1065 }
1066
dea31012005-04-17 16:05:31 -05001067 /*
1068 * Issue iocb command to adapter
1069 */
James Smart92d7f7b2007-06-17 19:56:38 -05001070 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
dea31012005-04-17 16:05:31 -05001071 wmb();
1072 pring->stats.iocb_cmd++;
1073
1074 /*
1075 * If there is no completion routine to call, we can release the
1076 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1077 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1078 */
1079 if (nextiocb->iocb_cmpl)
1080 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
James Bottomley604a3e32005-10-29 10:28:33 -05001081 else
James Smart2e0fef82007-06-17 19:56:36 -05001082 __lpfc_sli_release_iocbq(phba, nextiocb);
dea31012005-04-17 16:05:31 -05001083
1084 /*
1085 * Let the HBA know what IOCB slot will be the next one the
1086 * driver will put a command into.
1087 */
1088 pring->cmdidx = pring->next_cmdidx;
James Smarted957682007-06-17 19:56:37 -05001089 writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
dea31012005-04-17 16:05:31 -05001090}
1091
James Smarte59058c2008-08-24 21:49:00 -04001092/**
James Smart3621a712009-04-06 18:47:14 -04001093 * lpfc_sli_update_full_ring - Update the chip attention register
James Smarte59058c2008-08-24 21:49:00 -04001094 * @phba: Pointer to HBA context object.
1095 * @pring: Pointer to driver SLI ring object.
1096 *
1097 * The caller is not required to hold any lock for calling this function.
1098 * This function updates the chip attention bits for the ring to inform firmware
1099 * that there are pending work to be done for this ring and requests an
1100 * interrupt when there is space available in the ring. This function is
1101 * called when the driver is unable to post more iocbs to the ring due
1102 * to unavailability of space in the ring.
1103 **/
dea31012005-04-17 16:05:31 -05001104static void
James Smart2e0fef82007-06-17 19:56:36 -05001105lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001106{
1107 int ringno = pring->ringno;
1108
1109 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1110
1111 wmb();
1112
1113 /*
1114 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1115 * The HBA will tell us when an IOCB entry is available.
1116 */
1117 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1118 readl(phba->CAregaddr); /* flush */
1119
1120 pring->stats.iocb_cmd_full++;
1121}
1122
James Smarte59058c2008-08-24 21:49:00 -04001123/**
James Smart3621a712009-04-06 18:47:14 -04001124 * lpfc_sli_update_ring - Update chip attention register
James Smarte59058c2008-08-24 21:49:00 -04001125 * @phba: Pointer to HBA context object.
1126 * @pring: Pointer to driver SLI ring object.
1127 *
1128 * This function updates the chip attention register bit for the
1129 * given ring to inform HBA that there is more work to be done
1130 * in this ring. The caller is not required to hold any lock.
1131 **/
dea31012005-04-17 16:05:31 -05001132static void
James Smart2e0fef82007-06-17 19:56:36 -05001133lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001134{
1135 int ringno = pring->ringno;
1136
1137 /*
1138 * Tell the HBA that there is work to do in this ring.
1139 */
James Smart34b02dc2008-08-24 21:49:55 -04001140 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1141 wmb();
1142 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1143 readl(phba->CAregaddr); /* flush */
1144 }
dea31012005-04-17 16:05:31 -05001145}
1146
James Smarte59058c2008-08-24 21:49:00 -04001147/**
James Smart3621a712009-04-06 18:47:14 -04001148 * lpfc_sli_resume_iocb - Process iocbs in the txq
James Smarte59058c2008-08-24 21:49:00 -04001149 * @phba: Pointer to HBA context object.
1150 * @pring: Pointer to driver SLI ring object.
1151 *
1152 * This function is called with hbalock held to post pending iocbs
1153 * in the txq to the firmware. This function is called when driver
1154 * detects space available in the ring.
1155 **/
dea31012005-04-17 16:05:31 -05001156static void
James Smart2e0fef82007-06-17 19:56:36 -05001157lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001158{
1159 IOCB_t *iocb;
1160 struct lpfc_iocbq *nextiocb;
1161
1162 /*
1163 * Check to see if:
1164 * (a) there is anything on the txq to send
1165 * (b) link is up
1166 * (c) link attention events can be processed (fcp ring only)
1167 * (d) IOCB processing is not blocked by the outstanding mbox command.
1168 */
1169 if (pring->txq_cnt &&
James Smart2e0fef82007-06-17 19:56:36 -05001170 lpfc_is_link_up(phba) &&
dea31012005-04-17 16:05:31 -05001171 (pring->ringno != phba->sli.fcp_ring ||
James Smart0b727fe2007-10-27 13:37:25 -04001172 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
dea31012005-04-17 16:05:31 -05001173
1174 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1175 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1176 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1177
1178 if (iocb)
1179 lpfc_sli_update_ring(phba, pring);
1180 else
1181 lpfc_sli_update_full_ring(phba, pring);
1182 }
1183
1184 return;
1185}
1186
James Smarte59058c2008-08-24 21:49:00 -04001187/**
James Smart3621a712009-04-06 18:47:14 -04001188 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
James Smarte59058c2008-08-24 21:49:00 -04001189 * @phba: Pointer to HBA context object.
1190 * @hbqno: HBQ number.
1191 *
1192 * This function is called with hbalock held to get the next
1193 * available slot for the given HBQ. If there is free slot
1194 * available for the HBQ it will return pointer to the next available
1195 * HBQ entry else it will return NULL.
1196 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001197static struct lpfc_hbq_entry *
James Smarted957682007-06-17 19:56:37 -05001198lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1199{
1200 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1201
1202 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1203 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1204 hbqp->next_hbqPutIdx = 0;
1205
1206 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
James Smart92d7f7b2007-06-17 19:56:38 -05001207 uint32_t raw_index = phba->hbq_get[hbqno];
James Smarted957682007-06-17 19:56:37 -05001208 uint32_t getidx = le32_to_cpu(raw_index);
1209
1210 hbqp->local_hbqGetIdx = getidx;
1211
1212 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1213 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05001214 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04001215 "1802 HBQ %d: local_hbqGetIdx "
James Smarted957682007-06-17 19:56:37 -05001216 "%u is > than hbqp->entry_count %u\n",
James Smarte8b62012007-08-02 11:10:09 -04001217 hbqno, hbqp->local_hbqGetIdx,
James Smarted957682007-06-17 19:56:37 -05001218 hbqp->entry_count);
1219
1220 phba->link_state = LPFC_HBA_ERROR;
1221 return NULL;
1222 }
1223
1224 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1225 return NULL;
1226 }
1227
James Smart51ef4c22007-08-02 11:10:31 -04001228 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1229 hbqp->hbqPutIdx;
James Smarted957682007-06-17 19:56:37 -05001230}
1231
James Smarte59058c2008-08-24 21:49:00 -04001232/**
James Smart3621a712009-04-06 18:47:14 -04001233 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
James Smarte59058c2008-08-24 21:49:00 -04001234 * @phba: Pointer to HBA context object.
1235 *
1236 * This function is called with no lock held to free all the
1237 * hbq buffers while uninitializing the SLI interface. It also
1238 * frees the HBQ buffers returned by the firmware but not yet
1239 * processed by the upper layers.
1240 **/
James Smarted957682007-06-17 19:56:37 -05001241void
1242lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1243{
James Smart92d7f7b2007-06-17 19:56:38 -05001244 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1245 struct hbq_dmabuf *hbq_buf;
James Smart3163f722008-02-08 18:50:25 -05001246 unsigned long flags;
James Smart51ef4c22007-08-02 11:10:31 -04001247 int i, hbq_count;
James Smart3163f722008-02-08 18:50:25 -05001248 uint32_t hbqno;
James Smarted957682007-06-17 19:56:37 -05001249
James Smart51ef4c22007-08-02 11:10:31 -04001250 hbq_count = lpfc_sli_hbq_count();
James Smarted957682007-06-17 19:56:37 -05001251 /* Return all memory used by all HBQs */
James Smart3163f722008-02-08 18:50:25 -05001252 spin_lock_irqsave(&phba->hbalock, flags);
James Smart51ef4c22007-08-02 11:10:31 -04001253 for (i = 0; i < hbq_count; ++i) {
1254 list_for_each_entry_safe(dmabuf, next_dmabuf,
1255 &phba->hbqs[i].hbq_buffer_list, list) {
1256 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1257 list_del(&hbq_buf->dbuf.list);
1258 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1259 }
James Smarta8adb832007-10-27 13:37:53 -04001260 phba->hbqs[i].buffer_count = 0;
James Smarted957682007-06-17 19:56:37 -05001261 }
James Smart3163f722008-02-08 18:50:25 -05001262 /* Return all HBQ buffer that are in-fly */
James Smart3772a992009-05-22 14:50:54 -04001263 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1264 list) {
James Smart3163f722008-02-08 18:50:25 -05001265 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1266 list_del(&hbq_buf->dbuf.list);
1267 if (hbq_buf->tag == -1) {
1268 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1269 (phba, hbq_buf);
1270 } else {
1271 hbqno = hbq_buf->tag >> 16;
1272 if (hbqno >= LPFC_MAX_HBQS)
1273 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1274 (phba, hbq_buf);
1275 else
1276 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1277 hbq_buf);
1278 }
1279 }
1280
1281 /* Mark the HBQs not in use */
1282 phba->hbq_in_use = 0;
1283 spin_unlock_irqrestore(&phba->hbalock, flags);
James Smarted957682007-06-17 19:56:37 -05001284}
1285
James Smarte59058c2008-08-24 21:49:00 -04001286/**
James Smart3621a712009-04-06 18:47:14 -04001287 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
James Smarte59058c2008-08-24 21:49:00 -04001288 * @phba: Pointer to HBA context object.
1289 * @hbqno: HBQ number.
1290 * @hbq_buf: Pointer to HBQ buffer.
1291 *
1292 * This function is called with the hbalock held to post a
1293 * hbq buffer to the firmware. If the function finds an empty
1294 * slot in the HBQ, it will post the buffer. The function will return
1295 * pointer to the hbq entry if it successfully post the buffer
1296 * else it will return NULL.
1297 **/
James Smart3772a992009-05-22 14:50:54 -04001298static int
James Smarted957682007-06-17 19:56:37 -05001299lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
James Smart92d7f7b2007-06-17 19:56:38 -05001300 struct hbq_dmabuf *hbq_buf)
James Smarted957682007-06-17 19:56:37 -05001301{
James Smart3772a992009-05-22 14:50:54 -04001302 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1303}
1304
1305/**
1306 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1307 * @phba: Pointer to HBA context object.
1308 * @hbqno: HBQ number.
1309 * @hbq_buf: Pointer to HBQ buffer.
1310 *
1311 * This function is called with the hbalock held to post a hbq buffer to the
1312 * firmware. If the function finds an empty slot in the HBQ, it will post the
1313 * buffer and place it on the hbq_buffer_list. The function will return zero if
1314 * it successfully post the buffer else it will return an error.
1315 **/
1316static int
1317lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1318 struct hbq_dmabuf *hbq_buf)
1319{
James Smarted957682007-06-17 19:56:37 -05001320 struct lpfc_hbq_entry *hbqe;
James Smart92d7f7b2007-06-17 19:56:38 -05001321 dma_addr_t physaddr = hbq_buf->dbuf.phys;
James Smarted957682007-06-17 19:56:37 -05001322
1323 /* Get next HBQ entry slot to use */
1324 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1325 if (hbqe) {
1326 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1327
James Smart92d7f7b2007-06-17 19:56:38 -05001328 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1329 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
James Smart51ef4c22007-08-02 11:10:31 -04001330 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
James Smarted957682007-06-17 19:56:37 -05001331 hbqe->bde.tus.f.bdeFlags = 0;
James Smart92d7f7b2007-06-17 19:56:38 -05001332 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1333 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1334 /* Sync SLIM */
James Smarted957682007-06-17 19:56:37 -05001335 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1336 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
James Smart92d7f7b2007-06-17 19:56:38 -05001337 /* flush */
James Smarted957682007-06-17 19:56:37 -05001338 readl(phba->hbq_put + hbqno);
James Smart51ef4c22007-08-02 11:10:31 -04001339 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
James Smart3772a992009-05-22 14:50:54 -04001340 return 0;
1341 } else
1342 return -ENOMEM;
James Smarted957682007-06-17 19:56:37 -05001343}
1344
James Smart4f774512009-05-22 14:52:35 -04001345/**
1346 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1347 * @phba: Pointer to HBA context object.
1348 * @hbqno: HBQ number.
1349 * @hbq_buf: Pointer to HBQ buffer.
1350 *
1351 * This function is called with the hbalock held to post an RQE to the SLI4
1352 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1353 * the hbq_buffer_list and return zero, otherwise it will return an error.
1354 **/
1355static int
1356lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1357 struct hbq_dmabuf *hbq_buf)
1358{
1359 int rc;
1360 struct lpfc_rqe hrqe;
1361 struct lpfc_rqe drqe;
1362
1363 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1364 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1365 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1366 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1367 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1368 &hrqe, &drqe);
1369 if (rc < 0)
1370 return rc;
1371 hbq_buf->tag = rc;
1372 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1373 return 0;
1374}
1375
James Smarte59058c2008-08-24 21:49:00 -04001376/* HBQ for ELS and CT traffic. */
James Smart92d7f7b2007-06-17 19:56:38 -05001377static struct lpfc_hbq_init lpfc_els_hbq = {
1378 .rn = 1,
James Smartdef9c7a2009-12-21 17:02:28 -05001379 .entry_count = 256,
James Smart92d7f7b2007-06-17 19:56:38 -05001380 .mask_count = 0,
1381 .profile = 0,
James Smart51ef4c22007-08-02 11:10:31 -04001382 .ring_mask = (1 << LPFC_ELS_RING),
James Smart92d7f7b2007-06-17 19:56:38 -05001383 .buffer_count = 0,
James Smarta257bf92009-04-06 18:48:10 -04001384 .init_count = 40,
1385 .add_count = 40,
James Smart92d7f7b2007-06-17 19:56:38 -05001386};
James Smarted957682007-06-17 19:56:37 -05001387
James Smarte59058c2008-08-24 21:49:00 -04001388/* HBQ for the extra ring if needed */
James Smart51ef4c22007-08-02 11:10:31 -04001389static struct lpfc_hbq_init lpfc_extra_hbq = {
1390 .rn = 1,
1391 .entry_count = 200,
1392 .mask_count = 0,
1393 .profile = 0,
1394 .ring_mask = (1 << LPFC_EXTRA_RING),
1395 .buffer_count = 0,
1396 .init_count = 0,
1397 .add_count = 5,
1398};
1399
James Smarte59058c2008-08-24 21:49:00 -04001400/* Array of HBQs */
James Smart78b2d852007-08-02 11:10:21 -04001401struct lpfc_hbq_init *lpfc_hbq_defs[] = {
James Smart92d7f7b2007-06-17 19:56:38 -05001402 &lpfc_els_hbq,
James Smart51ef4c22007-08-02 11:10:31 -04001403 &lpfc_extra_hbq,
James Smart92d7f7b2007-06-17 19:56:38 -05001404};
1405
James Smarte59058c2008-08-24 21:49:00 -04001406/**
James Smart3621a712009-04-06 18:47:14 -04001407 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
James Smarte59058c2008-08-24 21:49:00 -04001408 * @phba: Pointer to HBA context object.
1409 * @hbqno: HBQ number.
1410 * @count: Number of HBQ buffers to be posted.
1411 *
James Smartd7c255b2008-08-24 21:50:00 -04001412 * This function is called with no lock held to post more hbq buffers to the
1413 * given HBQ. The function returns the number of HBQ buffers successfully
1414 * posted.
James Smarte59058c2008-08-24 21:49:00 -04001415 **/
James Smart311464e2007-08-02 11:10:37 -04001416static int
James Smart92d7f7b2007-06-17 19:56:38 -05001417lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1418{
James Smartd7c255b2008-08-24 21:50:00 -04001419 uint32_t i, posted = 0;
James Smart3163f722008-02-08 18:50:25 -05001420 unsigned long flags;
James Smart92d7f7b2007-06-17 19:56:38 -05001421 struct hbq_dmabuf *hbq_buffer;
James Smartd7c255b2008-08-24 21:50:00 -04001422 LIST_HEAD(hbq_buf_list);
Matthew Wilcoxeafe1df2008-02-21 05:44:33 -07001423 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
James Smart51ef4c22007-08-02 11:10:31 -04001424 return 0;
James Smart51ef4c22007-08-02 11:10:31 -04001425
James Smartd7c255b2008-08-24 21:50:00 -04001426 if ((phba->hbqs[hbqno].buffer_count + count) >
1427 lpfc_hbq_defs[hbqno]->entry_count)
1428 count = lpfc_hbq_defs[hbqno]->entry_count -
1429 phba->hbqs[hbqno].buffer_count;
1430 if (!count)
1431 return 0;
1432 /* Allocate HBQ entries */
1433 for (i = 0; i < count; i++) {
1434 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1435 if (!hbq_buffer)
1436 break;
1437 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1438 }
James Smart3163f722008-02-08 18:50:25 -05001439 /* Check whether HBQ is still in use */
1440 spin_lock_irqsave(&phba->hbalock, flags);
Matthew Wilcoxeafe1df2008-02-21 05:44:33 -07001441 if (!phba->hbq_in_use)
James Smartd7c255b2008-08-24 21:50:00 -04001442 goto err;
1443 while (!list_empty(&hbq_buf_list)) {
1444 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1445 dbuf.list);
1446 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1447 (hbqno << 16));
James Smart3772a992009-05-22 14:50:54 -04001448 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
James Smarta8adb832007-10-27 13:37:53 -04001449 phba->hbqs[hbqno].buffer_count++;
James Smartd7c255b2008-08-24 21:50:00 -04001450 posted++;
1451 } else
James Smart51ef4c22007-08-02 11:10:31 -04001452 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
James Smart92d7f7b2007-06-17 19:56:38 -05001453 }
James Smart3163f722008-02-08 18:50:25 -05001454 spin_unlock_irqrestore(&phba->hbalock, flags);
James Smartd7c255b2008-08-24 21:50:00 -04001455 return posted;
1456err:
1457 spin_unlock_irqrestore(&phba->hbalock, flags);
1458 while (!list_empty(&hbq_buf_list)) {
1459 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1460 dbuf.list);
1461 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1462 }
James Smart92d7f7b2007-06-17 19:56:38 -05001463 return 0;
James Smarted957682007-06-17 19:56:37 -05001464}
1465
James Smarte59058c2008-08-24 21:49:00 -04001466/**
James Smart3621a712009-04-06 18:47:14 -04001467 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
James Smarte59058c2008-08-24 21:49:00 -04001468 * @phba: Pointer to HBA context object.
1469 * @qno: HBQ number.
1470 *
1471 * This function posts more buffers to the HBQ. This function
James Smartd7c255b2008-08-24 21:50:00 -04001472 * is called with no lock held. The function returns the number of HBQ entries
1473 * successfully allocated.
James Smarte59058c2008-08-24 21:49:00 -04001474 **/
James Smarted957682007-06-17 19:56:37 -05001475int
James Smart92d7f7b2007-06-17 19:56:38 -05001476lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
James Smarted957682007-06-17 19:56:37 -05001477{
James Smartdef9c7a2009-12-21 17:02:28 -05001478 if (phba->sli_rev == LPFC_SLI_REV4)
1479 return 0;
1480 else
1481 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1482 lpfc_hbq_defs[qno]->add_count);
James Smarted957682007-06-17 19:56:37 -05001483}
1484
James Smarte59058c2008-08-24 21:49:00 -04001485/**
James Smart3621a712009-04-06 18:47:14 -04001486 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
James Smarte59058c2008-08-24 21:49:00 -04001487 * @phba: Pointer to HBA context object.
1488 * @qno: HBQ queue number.
1489 *
1490 * This function is called from SLI initialization code path with
1491 * no lock held to post initial HBQ buffers to firmware. The
James Smartd7c255b2008-08-24 21:50:00 -04001492 * function returns the number of HBQ entries successfully allocated.
James Smarte59058c2008-08-24 21:49:00 -04001493 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001494static int
James Smart92d7f7b2007-06-17 19:56:38 -05001495lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
James Smarted957682007-06-17 19:56:37 -05001496{
James Smartdef9c7a2009-12-21 17:02:28 -05001497 if (phba->sli_rev == LPFC_SLI_REV4)
1498 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1499 lpfc_hbq_defs[qno]->entry_count);
1500 else
1501 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1502 lpfc_hbq_defs[qno]->init_count);
James Smarted957682007-06-17 19:56:37 -05001503}
1504
James Smarte59058c2008-08-24 21:49:00 -04001505/**
James Smart3772a992009-05-22 14:50:54 -04001506 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1507 * @phba: Pointer to HBA context object.
1508 * @hbqno: HBQ number.
1509 *
1510 * This function removes the first hbq buffer on an hbq list and returns a
1511 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1512 **/
1513static struct hbq_dmabuf *
1514lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1515{
1516 struct lpfc_dmabuf *d_buf;
1517
1518 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
1519 if (!d_buf)
1520 return NULL;
1521 return container_of(d_buf, struct hbq_dmabuf, dbuf);
1522}
1523
1524/**
James Smart3621a712009-04-06 18:47:14 -04001525 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
James Smarte59058c2008-08-24 21:49:00 -04001526 * @phba: Pointer to HBA context object.
1527 * @tag: Tag of the hbq buffer.
1528 *
1529 * This function is called with hbalock held. This function searches
1530 * for the hbq buffer associated with the given tag in the hbq buffer
1531 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1532 * it returns NULL.
1533 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001534static struct hbq_dmabuf *
James Smarted957682007-06-17 19:56:37 -05001535lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
1536{
James Smart92d7f7b2007-06-17 19:56:38 -05001537 struct lpfc_dmabuf *d_buf;
1538 struct hbq_dmabuf *hbq_buf;
James Smart51ef4c22007-08-02 11:10:31 -04001539 uint32_t hbqno;
James Smarted957682007-06-17 19:56:37 -05001540
James Smart51ef4c22007-08-02 11:10:31 -04001541 hbqno = tag >> 16;
Jesper Juhla0a74e452007-08-09 20:47:15 +02001542 if (hbqno >= LPFC_MAX_HBQS)
James Smart51ef4c22007-08-02 11:10:31 -04001543 return NULL;
1544
James Smart3772a992009-05-22 14:50:54 -04001545 spin_lock_irq(&phba->hbalock);
James Smart51ef4c22007-08-02 11:10:31 -04001546 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
James Smart92d7f7b2007-06-17 19:56:38 -05001547 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
James Smart51ef4c22007-08-02 11:10:31 -04001548 if (hbq_buf->tag == tag) {
James Smart3772a992009-05-22 14:50:54 -04001549 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05001550 return hbq_buf;
James Smarted957682007-06-17 19:56:37 -05001551 }
1552 }
James Smart3772a992009-05-22 14:50:54 -04001553 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05001554 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04001555 "1803 Bad hbq tag. Data: x%x x%x\n",
James Smarta8adb832007-10-27 13:37:53 -04001556 tag, phba->hbqs[tag >> 16].buffer_count);
James Smart92d7f7b2007-06-17 19:56:38 -05001557 return NULL;
James Smarted957682007-06-17 19:56:37 -05001558}
1559
James Smarte59058c2008-08-24 21:49:00 -04001560/**
James Smart3621a712009-04-06 18:47:14 -04001561 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
James Smarte59058c2008-08-24 21:49:00 -04001562 * @phba: Pointer to HBA context object.
1563 * @hbq_buffer: Pointer to HBQ buffer.
1564 *
1565 * This function is called with hbalock. This function gives back
1566 * the hbq buffer to firmware. If the HBQ does not have space to
1567 * post the buffer, it will free the buffer.
1568 **/
James Smarted957682007-06-17 19:56:37 -05001569void
James Smart51ef4c22007-08-02 11:10:31 -04001570lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
James Smarted957682007-06-17 19:56:37 -05001571{
1572 uint32_t hbqno;
1573
James Smart51ef4c22007-08-02 11:10:31 -04001574 if (hbq_buffer) {
1575 hbqno = hbq_buffer->tag >> 16;
James Smart3772a992009-05-22 14:50:54 -04001576 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
James Smart51ef4c22007-08-02 11:10:31 -04001577 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
James Smarted957682007-06-17 19:56:37 -05001578 }
1579}
1580
James Smarte59058c2008-08-24 21:49:00 -04001581/**
James Smart3621a712009-04-06 18:47:14 -04001582 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
James Smarte59058c2008-08-24 21:49:00 -04001583 * @mbxCommand: mailbox command code.
1584 *
1585 * This function is called by the mailbox event handler function to verify
1586 * that the completed mailbox command is a legitimate mailbox command. If the
1587 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
1588 * and the mailbox event handler will take the HBA offline.
1589 **/
dea31012005-04-17 16:05:31 -05001590static int
1591lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
1592{
1593 uint8_t ret;
1594
1595 switch (mbxCommand) {
1596 case MBX_LOAD_SM:
1597 case MBX_READ_NV:
1598 case MBX_WRITE_NV:
James Smarta8adb832007-10-27 13:37:53 -04001599 case MBX_WRITE_VPARMS:
dea31012005-04-17 16:05:31 -05001600 case MBX_RUN_BIU_DIAG:
1601 case MBX_INIT_LINK:
1602 case MBX_DOWN_LINK:
1603 case MBX_CONFIG_LINK:
1604 case MBX_CONFIG_RING:
1605 case MBX_RESET_RING:
1606 case MBX_READ_CONFIG:
1607 case MBX_READ_RCONFIG:
1608 case MBX_READ_SPARM:
1609 case MBX_READ_STATUS:
1610 case MBX_READ_RPI:
1611 case MBX_READ_XRI:
1612 case MBX_READ_REV:
1613 case MBX_READ_LNK_STAT:
1614 case MBX_REG_LOGIN:
1615 case MBX_UNREG_LOGIN:
1616 case MBX_READ_LA:
1617 case MBX_CLEAR_LA:
1618 case MBX_DUMP_MEMORY:
1619 case MBX_DUMP_CONTEXT:
1620 case MBX_RUN_DIAGS:
1621 case MBX_RESTART:
1622 case MBX_UPDATE_CFG:
1623 case MBX_DOWN_LOAD:
1624 case MBX_DEL_LD_ENTRY:
1625 case MBX_RUN_PROGRAM:
1626 case MBX_SET_MASK:
James Smart09372822008-01-11 01:52:54 -05001627 case MBX_SET_VARIABLE:
dea31012005-04-17 16:05:31 -05001628 case MBX_UNREG_D_ID:
Jamie Wellnitz41415862006-02-28 19:25:27 -05001629 case MBX_KILL_BOARD:
dea31012005-04-17 16:05:31 -05001630 case MBX_CONFIG_FARP:
Jamie Wellnitz41415862006-02-28 19:25:27 -05001631 case MBX_BEACON:
dea31012005-04-17 16:05:31 -05001632 case MBX_LOAD_AREA:
1633 case MBX_RUN_BIU_DIAG64:
1634 case MBX_CONFIG_PORT:
1635 case MBX_READ_SPARM64:
1636 case MBX_READ_RPI64:
1637 case MBX_REG_LOGIN64:
1638 case MBX_READ_LA64:
James Smart09372822008-01-11 01:52:54 -05001639 case MBX_WRITE_WWN:
dea31012005-04-17 16:05:31 -05001640 case MBX_SET_DEBUG:
1641 case MBX_LOAD_EXP_ROM:
James Smart57127f12007-10-27 13:37:05 -04001642 case MBX_ASYNCEVT_ENABLE:
James Smart92d7f7b2007-06-17 19:56:38 -05001643 case MBX_REG_VPI:
1644 case MBX_UNREG_VPI:
James Smart858c9f62007-06-17 19:56:39 -05001645 case MBX_HEARTBEAT:
James Smart84774a42008-08-24 21:50:06 -04001646 case MBX_PORT_CAPABILITIES:
1647 case MBX_PORT_IOV_CONTROL:
James Smart04c68492009-05-22 14:52:52 -04001648 case MBX_SLI4_CONFIG:
1649 case MBX_SLI4_REQ_FTRS:
1650 case MBX_REG_FCFI:
1651 case MBX_UNREG_FCFI:
1652 case MBX_REG_VFI:
1653 case MBX_UNREG_VFI:
1654 case MBX_INIT_VPI:
1655 case MBX_INIT_VFI:
1656 case MBX_RESUME_RPI:
dea31012005-04-17 16:05:31 -05001657 ret = mbxCommand;
1658 break;
1659 default:
1660 ret = MBX_SHUTDOWN;
1661 break;
1662 }
James Smart2e0fef82007-06-17 19:56:36 -05001663 return ret;
dea31012005-04-17 16:05:31 -05001664}
James Smarte59058c2008-08-24 21:49:00 -04001665
1666/**
James Smart3621a712009-04-06 18:47:14 -04001667 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
James Smarte59058c2008-08-24 21:49:00 -04001668 * @phba: Pointer to HBA context object.
1669 * @pmboxq: Pointer to mailbox command.
1670 *
1671 * This is completion handler function for mailbox commands issued from
1672 * lpfc_sli_issue_mbox_wait function. This function is called by the
1673 * mailbox event handler function with no lock held. This function
1674 * will wake up thread waiting on the wait queue pointed by context1
1675 * of the mailbox.
1676 **/
James Smart04c68492009-05-22 14:52:52 -04001677void
James Smart2e0fef82007-06-17 19:56:36 -05001678lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
dea31012005-04-17 16:05:31 -05001679{
1680 wait_queue_head_t *pdone_q;
James Smart858c9f62007-06-17 19:56:39 -05001681 unsigned long drvr_flag;
dea31012005-04-17 16:05:31 -05001682
1683 /*
1684 * If pdone_q is empty, the driver thread gave up waiting and
1685 * continued running.
1686 */
James Smart7054a602007-04-25 09:52:34 -04001687 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
James Smart858c9f62007-06-17 19:56:39 -05001688 spin_lock_irqsave(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05001689 pdone_q = (wait_queue_head_t *) pmboxq->context1;
1690 if (pdone_q)
1691 wake_up_interruptible(pdone_q);
James Smart858c9f62007-06-17 19:56:39 -05001692 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05001693 return;
1694}
1695
James Smarte59058c2008-08-24 21:49:00 -04001696
1697/**
James Smart3621a712009-04-06 18:47:14 -04001698 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
James Smarte59058c2008-08-24 21:49:00 -04001699 * @phba: Pointer to HBA context object.
1700 * @pmb: Pointer to mailbox object.
1701 *
1702 * This function is the default mailbox completion handler. It
1703 * frees the memory resources associated with the completed mailbox
1704 * command. If the completed command is a REG_LOGIN mailbox command,
1705 * this function will issue a UREG_LOGIN to re-claim the RPI.
1706 **/
dea31012005-04-17 16:05:31 -05001707void
James Smart2e0fef82007-06-17 19:56:36 -05001708lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea31012005-04-17 16:05:31 -05001709{
1710 struct lpfc_dmabuf *mp;
James Smart04c68492009-05-22 14:52:52 -04001711 uint16_t rpi, vpi;
James Smart7054a602007-04-25 09:52:34 -04001712 int rc;
James Smart695a8142010-01-26 23:08:03 -05001713 struct lpfc_vport *vport = pmb->vport;
James Smart7054a602007-04-25 09:52:34 -04001714
dea31012005-04-17 16:05:31 -05001715 mp = (struct lpfc_dmabuf *) (pmb->context1);
James Smart7054a602007-04-25 09:52:34 -04001716
dea31012005-04-17 16:05:31 -05001717 if (mp) {
1718 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1719 kfree(mp);
1720 }
James Smart7054a602007-04-25 09:52:34 -04001721
James Smart04c68492009-05-22 14:52:52 -04001722 if ((pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) &&
1723 (phba->sli_rev == LPFC_SLI_REV4))
1724 lpfc_sli4_free_rpi(phba, pmb->u.mb.un.varUnregLogin.rpi);
1725
James Smart7054a602007-04-25 09:52:34 -04001726 /*
1727 * If a REG_LOGIN succeeded after node is destroyed or node
1728 * is in re-discovery driver need to cleanup the RPI.
1729 */
James Smart2e0fef82007-06-17 19:56:36 -05001730 if (!(phba->pport->load_flag & FC_UNLOADING) &&
James Smart04c68492009-05-22 14:52:52 -04001731 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
1732 !pmb->u.mb.mbxStatus) {
1733 rpi = pmb->u.mb.un.varWords[0];
1734 vpi = pmb->u.mb.un.varRegLogin.vpi - phba->vpi_base;
1735 lpfc_unreg_login(phba, vpi, rpi, pmb);
James Smart92d7f7b2007-06-17 19:56:38 -05001736 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
James Smart7054a602007-04-25 09:52:34 -04001737 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
1738 if (rc != MBX_NOT_FINISHED)
1739 return;
1740 }
1741
James Smart695a8142010-01-26 23:08:03 -05001742 /* Unreg VPI, if the REG_VPI succeed after VLink failure */
1743 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
1744 !(phba->pport->load_flag & FC_UNLOADING) &&
1745 !pmb->u.mb.mbxStatus) {
1746 lpfc_unreg_vpi(phba, pmb->u.mb.un.varRegVpi.vpi, pmb);
1747 pmb->vport = vport;
1748 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1749 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
1750 if (rc != MBX_NOT_FINISHED)
1751 return;
1752 }
1753
James Smart04c68492009-05-22 14:52:52 -04001754 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
1755 lpfc_sli4_mbox_cmd_free(phba, pmb);
1756 else
1757 mempool_free(pmb, phba->mbox_mem_pool);
dea31012005-04-17 16:05:31 -05001758}
1759
James Smarte59058c2008-08-24 21:49:00 -04001760/**
James Smart3621a712009-04-06 18:47:14 -04001761 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
James Smarte59058c2008-08-24 21:49:00 -04001762 * @phba: Pointer to HBA context object.
1763 *
1764 * This function is called with no lock held. This function processes all
1765 * the completed mailbox commands and gives it to upper layers. The interrupt
1766 * service routine processes mailbox completion interrupt and adds completed
1767 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
1768 * Worker thread call lpfc_sli_handle_mb_event, which will return the
1769 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
1770 * function returns the mailbox commands to the upper layer by calling the
1771 * completion handler function of each mailbox.
1772 **/
dea31012005-04-17 16:05:31 -05001773int
James Smart2e0fef82007-06-17 19:56:36 -05001774lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05001775{
James Smart92d7f7b2007-06-17 19:56:38 -05001776 MAILBOX_t *pmbox;
dea31012005-04-17 16:05:31 -05001777 LPFC_MBOXQ_t *pmb;
James Smart92d7f7b2007-06-17 19:56:38 -05001778 int rc;
1779 LIST_HEAD(cmplq);
dea31012005-04-17 16:05:31 -05001780
1781 phba->sli.slistat.mbox_event++;
1782
James Smart92d7f7b2007-06-17 19:56:38 -05001783 /* Get all completed mailboxe buffers into the cmplq */
1784 spin_lock_irq(&phba->hbalock);
1785 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
1786 spin_unlock_irq(&phba->hbalock);
1787
dea31012005-04-17 16:05:31 -05001788 /* Get a Mailbox buffer to setup mailbox commands for callback */
James Smart92d7f7b2007-06-17 19:56:38 -05001789 do {
1790 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
1791 if (pmb == NULL)
1792 break;
1793
James Smart04c68492009-05-22 14:52:52 -04001794 pmbox = &pmb->u.mb;
dea31012005-04-17 16:05:31 -05001795
James Smart858c9f62007-06-17 19:56:39 -05001796 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
1797 if (pmb->vport) {
1798 lpfc_debugfs_disc_trc(pmb->vport,
1799 LPFC_DISC_TRC_MBOX_VPORT,
1800 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
1801 (uint32_t)pmbox->mbxCommand,
1802 pmbox->un.varWords[0],
1803 pmbox->un.varWords[1]);
1804 }
1805 else {
1806 lpfc_debugfs_disc_trc(phba->pport,
1807 LPFC_DISC_TRC_MBOX,
1808 "MBOX cmpl: cmd:x%x mb:x%x x%x",
1809 (uint32_t)pmbox->mbxCommand,
1810 pmbox->un.varWords[0],
1811 pmbox->un.varWords[1]);
1812 }
1813 }
1814
dea31012005-04-17 16:05:31 -05001815 /*
1816 * It is a fatal error if unknown mbox command completion.
1817 */
1818 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
1819 MBX_SHUTDOWN) {
André Goddard Rosaaf901ca2009-11-14 13:09:05 -02001820 /* Unknown mailbox command compl */
James Smart92d7f7b2007-06-17 19:56:38 -05001821 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04001822 "(%d):0323 Unknown Mailbox command "
James Smart04c68492009-05-22 14:52:52 -04001823 "x%x (x%x) Cmpl\n",
James Smart92d7f7b2007-06-17 19:56:38 -05001824 pmb->vport ? pmb->vport->vpi : 0,
James Smart04c68492009-05-22 14:52:52 -04001825 pmbox->mbxCommand,
1826 lpfc_sli4_mbox_opcode_get(phba, pmb));
James Smart2e0fef82007-06-17 19:56:36 -05001827 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05001828 phba->work_hs = HS_FFER3;
1829 lpfc_handle_eratt(phba);
James Smart92d7f7b2007-06-17 19:56:38 -05001830 continue;
dea31012005-04-17 16:05:31 -05001831 }
1832
dea31012005-04-17 16:05:31 -05001833 if (pmbox->mbxStatus) {
1834 phba->sli.slistat.mbox_stat_err++;
1835 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
1836 /* Mbox cmd cmpl error - RETRYing */
James Smart92d7f7b2007-06-17 19:56:38 -05001837 lpfc_printf_log(phba, KERN_INFO,
1838 LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04001839 "(%d):0305 Mbox cmd cmpl "
James Smart92d7f7b2007-06-17 19:56:38 -05001840 "error - RETRYing Data: x%x "
James Smart04c68492009-05-22 14:52:52 -04001841 "(x%x) x%x x%x x%x\n",
James Smart92d7f7b2007-06-17 19:56:38 -05001842 pmb->vport ? pmb->vport->vpi :0,
1843 pmbox->mbxCommand,
James Smart04c68492009-05-22 14:52:52 -04001844 lpfc_sli4_mbox_opcode_get(phba,
1845 pmb),
James Smart92d7f7b2007-06-17 19:56:38 -05001846 pmbox->mbxStatus,
1847 pmbox->un.varWords[0],
1848 pmb->vport->port_state);
dea31012005-04-17 16:05:31 -05001849 pmbox->mbxStatus = 0;
1850 pmbox->mbxOwner = OWN_HOST;
dea31012005-04-17 16:05:31 -05001851 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
James Smart04c68492009-05-22 14:52:52 -04001852 if (rc != MBX_NOT_FINISHED)
James Smart92d7f7b2007-06-17 19:56:38 -05001853 continue;
dea31012005-04-17 16:05:31 -05001854 }
1855 }
1856
1857 /* Mailbox cmd <cmd> Cmpl <cmpl> */
James Smart92d7f7b2007-06-17 19:56:38 -05001858 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smart04c68492009-05-22 14:52:52 -04001859 "(%d):0307 Mailbox cmd x%x (x%x) Cmpl x%p "
dea31012005-04-17 16:05:31 -05001860 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
James Smart92d7f7b2007-06-17 19:56:38 -05001861 pmb->vport ? pmb->vport->vpi : 0,
dea31012005-04-17 16:05:31 -05001862 pmbox->mbxCommand,
James Smart04c68492009-05-22 14:52:52 -04001863 lpfc_sli4_mbox_opcode_get(phba, pmb),
dea31012005-04-17 16:05:31 -05001864 pmb->mbox_cmpl,
1865 *((uint32_t *) pmbox),
1866 pmbox->un.varWords[0],
1867 pmbox->un.varWords[1],
1868 pmbox->un.varWords[2],
1869 pmbox->un.varWords[3],
1870 pmbox->un.varWords[4],
1871 pmbox->un.varWords[5],
1872 pmbox->un.varWords[6],
1873 pmbox->un.varWords[7]);
1874
James Smart92d7f7b2007-06-17 19:56:38 -05001875 if (pmb->mbox_cmpl)
dea31012005-04-17 16:05:31 -05001876 pmb->mbox_cmpl(phba,pmb);
James Smart92d7f7b2007-06-17 19:56:38 -05001877 } while (1);
James Smart2e0fef82007-06-17 19:56:36 -05001878 return 0;
dea31012005-04-17 16:05:31 -05001879}
James Smart92d7f7b2007-06-17 19:56:38 -05001880
James Smarte59058c2008-08-24 21:49:00 -04001881/**
James Smart3621a712009-04-06 18:47:14 -04001882 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
James Smarte59058c2008-08-24 21:49:00 -04001883 * @phba: Pointer to HBA context object.
1884 * @pring: Pointer to driver SLI ring object.
1885 * @tag: buffer tag.
1886 *
1887 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
1888 * is set in the tag the buffer is posted for a particular exchange,
1889 * the function will return the buffer without replacing the buffer.
1890 * If the buffer is for unsolicited ELS or CT traffic, this function
1891 * returns the buffer and also posts another buffer to the firmware.
1892 **/
James Smart76bb24e2007-10-27 13:38:00 -04001893static struct lpfc_dmabuf *
1894lpfc_sli_get_buff(struct lpfc_hba *phba,
James Smart9f1e1b52008-12-04 22:39:40 -05001895 struct lpfc_sli_ring *pring,
1896 uint32_t tag)
James Smart76bb24e2007-10-27 13:38:00 -04001897{
James Smart9f1e1b52008-12-04 22:39:40 -05001898 struct hbq_dmabuf *hbq_entry;
1899
James Smart76bb24e2007-10-27 13:38:00 -04001900 if (tag & QUE_BUFTAG_BIT)
1901 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
James Smart9f1e1b52008-12-04 22:39:40 -05001902 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
1903 if (!hbq_entry)
1904 return NULL;
1905 return &hbq_entry->dbuf;
James Smart76bb24e2007-10-27 13:38:00 -04001906}
James Smart57127f12007-10-27 13:37:05 -04001907
James Smart3772a992009-05-22 14:50:54 -04001908/**
1909 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
1910 * @phba: Pointer to HBA context object.
1911 * @pring: Pointer to driver SLI ring object.
1912 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
1913 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
1914 * @fch_type: the type for the first frame of the sequence.
1915 *
1916 * This function is called with no lock held. This function uses the r_ctl and
1917 * type of the received sequence to find the correct callback function to call
1918 * to process the sequence.
1919 **/
1920static int
1921lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1922 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
1923 uint32_t fch_type)
1924{
1925 int i;
1926
1927 /* unSolicited Responses */
1928 if (pring->prt[0].profile) {
1929 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
1930 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
1931 saveq);
1932 return 1;
1933 }
1934 /* We must search, based on rctl / type
1935 for the right routine */
1936 for (i = 0; i < pring->num_mask; i++) {
1937 if ((pring->prt[i].rctl == fch_r_ctl) &&
1938 (pring->prt[i].type == fch_type)) {
1939 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
1940 (pring->prt[i].lpfc_sli_rcv_unsol_event)
1941 (phba, pring, saveq);
1942 return 1;
1943 }
1944 }
1945 return 0;
1946}
James Smarte59058c2008-08-24 21:49:00 -04001947
1948/**
James Smart3621a712009-04-06 18:47:14 -04001949 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
James Smarte59058c2008-08-24 21:49:00 -04001950 * @phba: Pointer to HBA context object.
1951 * @pring: Pointer to driver SLI ring object.
1952 * @saveq: Pointer to the unsolicited iocb.
1953 *
1954 * This function is called with no lock held by the ring event handler
1955 * when there is an unsolicited iocb posted to the response ring by the
1956 * firmware. This function gets the buffer associated with the iocbs
1957 * and calls the event handler for the ring. This function handles both
1958 * qring buffers and hbq buffers.
1959 * When the function returns 1 the caller can free the iocb object otherwise
1960 * upper layer functions will free the iocb objects.
1961 **/
dea31012005-04-17 16:05:31 -05001962static int
1963lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1964 struct lpfc_iocbq *saveq)
1965{
1966 IOCB_t * irsp;
1967 WORD5 * w5p;
1968 uint32_t Rctl, Type;
James Smart3772a992009-05-22 14:50:54 -04001969 uint32_t match;
James Smart76bb24e2007-10-27 13:38:00 -04001970 struct lpfc_iocbq *iocbq;
James Smart3163f722008-02-08 18:50:25 -05001971 struct lpfc_dmabuf *dmzbuf;
dea31012005-04-17 16:05:31 -05001972
1973 match = 0;
1974 irsp = &(saveq->iocb);
James Smart57127f12007-10-27 13:37:05 -04001975
1976 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
1977 if (pring->lpfc_sli_rcv_async_status)
1978 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
1979 else
1980 lpfc_printf_log(phba,
1981 KERN_WARNING,
1982 LOG_SLI,
1983 "0316 Ring %d handler: unexpected "
1984 "ASYNC_STATUS iocb received evt_code "
1985 "0x%x\n",
1986 pring->ringno,
1987 irsp->un.asyncstat.evt_code);
1988 return 1;
1989 }
1990
James Smart3163f722008-02-08 18:50:25 -05001991 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
1992 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
1993 if (irsp->ulpBdeCount > 0) {
1994 dmzbuf = lpfc_sli_get_buff(phba, pring,
1995 irsp->un.ulpWord[3]);
1996 lpfc_in_buf_free(phba, dmzbuf);
1997 }
1998
1999 if (irsp->ulpBdeCount > 1) {
2000 dmzbuf = lpfc_sli_get_buff(phba, pring,
2001 irsp->unsli3.sli3Words[3]);
2002 lpfc_in_buf_free(phba, dmzbuf);
2003 }
2004
2005 if (irsp->ulpBdeCount > 2) {
2006 dmzbuf = lpfc_sli_get_buff(phba, pring,
2007 irsp->unsli3.sli3Words[7]);
2008 lpfc_in_buf_free(phba, dmzbuf);
2009 }
2010
2011 return 1;
2012 }
2013
James Smart92d7f7b2007-06-17 19:56:38 -05002014 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
James Smart76bb24e2007-10-27 13:38:00 -04002015 if (irsp->ulpBdeCount != 0) {
2016 saveq->context2 = lpfc_sli_get_buff(phba, pring,
James Smart92d7f7b2007-06-17 19:56:38 -05002017 irsp->un.ulpWord[3]);
James Smart76bb24e2007-10-27 13:38:00 -04002018 if (!saveq->context2)
2019 lpfc_printf_log(phba,
2020 KERN_ERR,
2021 LOG_SLI,
2022 "0341 Ring %d Cannot find buffer for "
2023 "an unsolicited iocb. tag 0x%x\n",
2024 pring->ringno,
2025 irsp->un.ulpWord[3]);
James Smart76bb24e2007-10-27 13:38:00 -04002026 }
2027 if (irsp->ulpBdeCount == 2) {
2028 saveq->context3 = lpfc_sli_get_buff(phba, pring,
James Smart51ef4c22007-08-02 11:10:31 -04002029 irsp->unsli3.sli3Words[7]);
James Smart76bb24e2007-10-27 13:38:00 -04002030 if (!saveq->context3)
2031 lpfc_printf_log(phba,
2032 KERN_ERR,
2033 LOG_SLI,
2034 "0342 Ring %d Cannot find buffer for an"
2035 " unsolicited iocb. tag 0x%x\n",
2036 pring->ringno,
2037 irsp->unsli3.sli3Words[7]);
2038 }
2039 list_for_each_entry(iocbq, &saveq->list, list) {
James Smart76bb24e2007-10-27 13:38:00 -04002040 irsp = &(iocbq->iocb);
James Smart76bb24e2007-10-27 13:38:00 -04002041 if (irsp->ulpBdeCount != 0) {
2042 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2043 irsp->un.ulpWord[3]);
James Smart9c2face2008-01-11 01:53:18 -05002044 if (!iocbq->context2)
James Smart76bb24e2007-10-27 13:38:00 -04002045 lpfc_printf_log(phba,
2046 KERN_ERR,
2047 LOG_SLI,
2048 "0343 Ring %d Cannot find "
2049 "buffer for an unsolicited iocb"
2050 ". tag 0x%x\n", pring->ringno,
2051 irsp->un.ulpWord[3]);
2052 }
2053 if (irsp->ulpBdeCount == 2) {
2054 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2055 irsp->unsli3.sli3Words[7]);
James Smart9c2face2008-01-11 01:53:18 -05002056 if (!iocbq->context3)
James Smart76bb24e2007-10-27 13:38:00 -04002057 lpfc_printf_log(phba,
2058 KERN_ERR,
2059 LOG_SLI,
2060 "0344 Ring %d Cannot find "
2061 "buffer for an unsolicited "
2062 "iocb. tag 0x%x\n",
2063 pring->ringno,
2064 irsp->unsli3.sli3Words[7]);
2065 }
2066 }
James Smart92d7f7b2007-06-17 19:56:38 -05002067 }
James Smart9c2face2008-01-11 01:53:18 -05002068 if (irsp->ulpBdeCount != 0 &&
2069 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2070 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2071 int found = 0;
2072
2073 /* search continue save q for same XRI */
2074 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2075 if (iocbq->iocb.ulpContext == saveq->iocb.ulpContext) {
2076 list_add_tail(&saveq->list, &iocbq->list);
2077 found = 1;
2078 break;
2079 }
2080 }
2081 if (!found)
2082 list_add_tail(&saveq->clist,
2083 &pring->iocb_continue_saveq);
2084 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2085 list_del_init(&iocbq->clist);
2086 saveq = iocbq;
2087 irsp = &(saveq->iocb);
2088 } else
2089 return 0;
2090 }
2091 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2092 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2093 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
James Smart6a9c52c2009-10-02 15:16:51 -04002094 Rctl = FC_RCTL_ELS_REQ;
2095 Type = FC_TYPE_ELS;
James Smart9c2face2008-01-11 01:53:18 -05002096 } else {
2097 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2098 Rctl = w5p->hcsw.Rctl;
2099 Type = w5p->hcsw.Type;
2100
2101 /* Firmware Workaround */
2102 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2103 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2104 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
James Smart6a9c52c2009-10-02 15:16:51 -04002105 Rctl = FC_RCTL_ELS_REQ;
2106 Type = FC_TYPE_ELS;
James Smart9c2face2008-01-11 01:53:18 -05002107 w5p->hcsw.Rctl = Rctl;
2108 w5p->hcsw.Type = Type;
2109 }
2110 }
James Smart92d7f7b2007-06-17 19:56:38 -05002111
James Smart3772a992009-05-22 14:50:54 -04002112 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
James Smart92d7f7b2007-06-17 19:56:38 -05002113 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002114 "0313 Ring %d handler: unexpected Rctl x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05002115 "Type x%x received\n",
James Smarte8b62012007-08-02 11:10:09 -04002116 pring->ringno, Rctl, Type);
James Smart3772a992009-05-22 14:50:54 -04002117
James Smart92d7f7b2007-06-17 19:56:38 -05002118 return 1;
dea31012005-04-17 16:05:31 -05002119}
2120
James Smarte59058c2008-08-24 21:49:00 -04002121/**
James Smart3621a712009-04-06 18:47:14 -04002122 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
James Smarte59058c2008-08-24 21:49:00 -04002123 * @phba: Pointer to HBA context object.
2124 * @pring: Pointer to driver SLI ring object.
2125 * @prspiocb: Pointer to response iocb object.
2126 *
2127 * This function looks up the iocb_lookup table to get the command iocb
2128 * corresponding to the given response iocb using the iotag of the
2129 * response iocb. This function is called with the hbalock held.
2130 * This function returns the command iocb object if it finds the command
2131 * iocb else returns NULL.
2132 **/
dea31012005-04-17 16:05:31 -05002133static struct lpfc_iocbq *
James Smart2e0fef82007-06-17 19:56:36 -05002134lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2135 struct lpfc_sli_ring *pring,
2136 struct lpfc_iocbq *prspiocb)
dea31012005-04-17 16:05:31 -05002137{
dea31012005-04-17 16:05:31 -05002138 struct lpfc_iocbq *cmd_iocb = NULL;
2139 uint16_t iotag;
2140
James Bottomley604a3e32005-10-29 10:28:33 -05002141 iotag = prspiocb->iocb.ulpIoTag;
dea31012005-04-17 16:05:31 -05002142
James Bottomley604a3e32005-10-29 10:28:33 -05002143 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2144 cmd_iocb = phba->sli.iocbq_lookup[iotag];
James Smart92d7f7b2007-06-17 19:56:38 -05002145 list_del_init(&cmd_iocb->list);
James Bottomley604a3e32005-10-29 10:28:33 -05002146 pring->txcmplq_cnt--;
2147 return cmd_iocb;
dea31012005-04-17 16:05:31 -05002148 }
2149
dea31012005-04-17 16:05:31 -05002150 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002151 "0317 iotag x%x is out off "
James Bottomley604a3e32005-10-29 10:28:33 -05002152 "range: max iotag x%x wd0 x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04002153 iotag, phba->sli.last_iotag,
James Bottomley604a3e32005-10-29 10:28:33 -05002154 *(((uint32_t *) &prspiocb->iocb) + 7));
dea31012005-04-17 16:05:31 -05002155 return NULL;
2156}
2157
James Smarte59058c2008-08-24 21:49:00 -04002158/**
James Smart3772a992009-05-22 14:50:54 -04002159 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2160 * @phba: Pointer to HBA context object.
2161 * @pring: Pointer to driver SLI ring object.
2162 * @iotag: IOCB tag.
2163 *
2164 * This function looks up the iocb_lookup table to get the command iocb
2165 * corresponding to the given iotag. This function is called with the
2166 * hbalock held.
2167 * This function returns the command iocb object if it finds the command
2168 * iocb else returns NULL.
2169 **/
2170static struct lpfc_iocbq *
2171lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2172 struct lpfc_sli_ring *pring, uint16_t iotag)
2173{
2174 struct lpfc_iocbq *cmd_iocb;
2175
2176 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2177 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2178 list_del_init(&cmd_iocb->list);
2179 pring->txcmplq_cnt--;
2180 return cmd_iocb;
2181 }
2182
2183 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2184 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2185 iotag, phba->sli.last_iotag);
2186 return NULL;
2187}
2188
2189/**
James Smart3621a712009-04-06 18:47:14 -04002190 * lpfc_sli_process_sol_iocb - process solicited iocb completion
James Smarte59058c2008-08-24 21:49:00 -04002191 * @phba: Pointer to HBA context object.
2192 * @pring: Pointer to driver SLI ring object.
2193 * @saveq: Pointer to the response iocb to be processed.
2194 *
2195 * This function is called by the ring event handler for non-fcp
2196 * rings when there is a new response iocb in the response ring.
2197 * The caller is not required to hold any locks. This function
2198 * gets the command iocb associated with the response iocb and
2199 * calls the completion handler for the command iocb. If there
2200 * is no completion handler, the function will free the resources
2201 * associated with command iocb. If the response iocb is for
2202 * an already aborted command iocb, the status of the completion
2203 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2204 * This function always returns 1.
2205 **/
dea31012005-04-17 16:05:31 -05002206static int
James Smart2e0fef82007-06-17 19:56:36 -05002207lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
dea31012005-04-17 16:05:31 -05002208 struct lpfc_iocbq *saveq)
2209{
James Smart2e0fef82007-06-17 19:56:36 -05002210 struct lpfc_iocbq *cmdiocbp;
dea31012005-04-17 16:05:31 -05002211 int rc = 1;
2212 unsigned long iflag;
2213
2214 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
James Smart2e0fef82007-06-17 19:56:36 -05002215 spin_lock_irqsave(&phba->hbalock, iflag);
James Bottomley604a3e32005-10-29 10:28:33 -05002216 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
James Smart2e0fef82007-06-17 19:56:36 -05002217 spin_unlock_irqrestore(&phba->hbalock, iflag);
2218
dea31012005-04-17 16:05:31 -05002219 if (cmdiocbp) {
2220 if (cmdiocbp->iocb_cmpl) {
2221 /*
James Smartea2151b2008-09-07 11:52:10 -04002222 * If an ELS command failed send an event to mgmt
2223 * application.
2224 */
2225 if (saveq->iocb.ulpStatus &&
2226 (pring->ringno == LPFC_ELS_RING) &&
2227 (cmdiocbp->iocb.ulpCommand ==
2228 CMD_ELS_REQUEST64_CR))
2229 lpfc_send_els_failure_event(phba,
2230 cmdiocbp, saveq);
2231
2232 /*
dea31012005-04-17 16:05:31 -05002233 * Post all ELS completions to the worker thread.
2234 * All other are passed to the completion callback.
2235 */
2236 if (pring->ringno == LPFC_ELS_RING) {
James Smart341af102010-01-26 23:07:37 -05002237 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2238 (cmdiocbp->iocb_flag &
2239 LPFC_DRIVER_ABORTED)) {
2240 spin_lock_irqsave(&phba->hbalock,
2241 iflag);
James Smart07951072007-04-25 09:51:38 -04002242 cmdiocbp->iocb_flag &=
2243 ~LPFC_DRIVER_ABORTED;
James Smart341af102010-01-26 23:07:37 -05002244 spin_unlock_irqrestore(&phba->hbalock,
2245 iflag);
James Smart07951072007-04-25 09:51:38 -04002246 saveq->iocb.ulpStatus =
2247 IOSTAT_LOCAL_REJECT;
2248 saveq->iocb.un.ulpWord[4] =
2249 IOERR_SLI_ABORTED;
James Smart0ff10d42008-01-11 01:52:36 -05002250
2251 /* Firmware could still be in progress
2252 * of DMAing payload, so don't free data
2253 * buffer till after a hbeat.
2254 */
James Smart341af102010-01-26 23:07:37 -05002255 spin_lock_irqsave(&phba->hbalock,
2256 iflag);
James Smart0ff10d42008-01-11 01:52:36 -05002257 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
James Smart341af102010-01-26 23:07:37 -05002258 spin_unlock_irqrestore(&phba->hbalock,
2259 iflag);
2260 }
2261 if ((phba->sli_rev == LPFC_SLI_REV4) &&
2262 (saveq->iocb_flag & LPFC_EXCHANGE_BUSY)) {
2263 /* Set cmdiocb flag for the exchange
2264 * busy so sgl (xri) will not be
2265 * released until the abort xri is
2266 * received from hba, clear the
2267 * LPFC_DRIVER_ABORTED bit in case
2268 * it was driver initiated abort.
2269 */
2270 spin_lock_irqsave(&phba->hbalock,
2271 iflag);
2272 cmdiocbp->iocb_flag &=
2273 ~LPFC_DRIVER_ABORTED;
2274 cmdiocbp->iocb_flag |=
2275 LPFC_EXCHANGE_BUSY;
2276 spin_unlock_irqrestore(&phba->hbalock,
2277 iflag);
2278 cmdiocbp->iocb.ulpStatus =
2279 IOSTAT_LOCAL_REJECT;
2280 cmdiocbp->iocb.un.ulpWord[4] =
2281 IOERR_ABORT_REQUESTED;
2282 /*
2283 * For SLI4, irsiocb contains NO_XRI
2284 * in sli_xritag, it shall not affect
2285 * releasing sgl (xri) process.
2286 */
2287 saveq->iocb.ulpStatus =
2288 IOSTAT_LOCAL_REJECT;
2289 saveq->iocb.un.ulpWord[4] =
2290 IOERR_SLI_ABORTED;
2291 spin_lock_irqsave(&phba->hbalock,
2292 iflag);
2293 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2294 spin_unlock_irqrestore(&phba->hbalock,
2295 iflag);
James Smart07951072007-04-25 09:51:38 -04002296 }
dea31012005-04-17 16:05:31 -05002297 }
James Smart2e0fef82007-06-17 19:56:36 -05002298 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
James Bottomley604a3e32005-10-29 10:28:33 -05002299 } else
2300 lpfc_sli_release_iocbq(phba, cmdiocbp);
dea31012005-04-17 16:05:31 -05002301 } else {
2302 /*
2303 * Unknown initiating command based on the response iotag.
2304 * This could be the case on the ELS ring because of
2305 * lpfc_els_abort().
2306 */
2307 if (pring->ringno != LPFC_ELS_RING) {
2308 /*
2309 * Ring <ringno> handler: unexpected completion IoTag
2310 * <IoTag>
2311 */
James Smarta257bf92009-04-06 18:48:10 -04002312 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002313 "0322 Ring %d handler: "
2314 "unexpected completion IoTag x%x "
2315 "Data: x%x x%x x%x x%x\n",
2316 pring->ringno,
2317 saveq->iocb.ulpIoTag,
2318 saveq->iocb.ulpStatus,
2319 saveq->iocb.un.ulpWord[4],
2320 saveq->iocb.ulpCommand,
2321 saveq->iocb.ulpContext);
dea31012005-04-17 16:05:31 -05002322 }
2323 }
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04002324
dea31012005-04-17 16:05:31 -05002325 return rc;
2326}
2327
James Smarte59058c2008-08-24 21:49:00 -04002328/**
James Smart3621a712009-04-06 18:47:14 -04002329 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
James Smarte59058c2008-08-24 21:49:00 -04002330 * @phba: Pointer to HBA context object.
2331 * @pring: Pointer to driver SLI ring object.
2332 *
2333 * This function is called from the iocb ring event handlers when
2334 * put pointer is ahead of the get pointer for a ring. This function signal
2335 * an error attention condition to the worker thread and the worker
2336 * thread will transition the HBA to offline state.
2337 **/
James Smart2e0fef82007-06-17 19:56:36 -05002338static void
2339lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002340{
James Smart34b02dc2008-08-24 21:49:55 -04002341 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002342 /*
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02002343 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002344 * rsp ring <portRspMax>
2345 */
2346 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002347 "0312 Ring %d handler: portRspPut %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02002348 "is bigger than rsp ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04002349 pring->ringno, le32_to_cpu(pgp->rspPutInx),
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002350 pring->numRiocb);
2351
James Smart2e0fef82007-06-17 19:56:36 -05002352 phba->link_state = LPFC_HBA_ERROR;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002353
2354 /*
2355 * All error attention handlers are posted to
2356 * worker thread
2357 */
2358 phba->work_ha |= HA_ERATT;
2359 phba->work_hs = HS_FFER3;
James Smart92d7f7b2007-06-17 19:56:38 -05002360
James Smart5e9d9b82008-06-14 22:52:53 -04002361 lpfc_worker_wake_up(phba);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002362
2363 return;
2364}
2365
James Smarte59058c2008-08-24 21:49:00 -04002366/**
James Smart3621a712009-04-06 18:47:14 -04002367 * lpfc_poll_eratt - Error attention polling timer timeout handler
James Smart93996272008-08-24 21:50:30 -04002368 * @ptr: Pointer to address of HBA context object.
2369 *
2370 * This function is invoked by the Error Attention polling timer when the
2371 * timer times out. It will check the SLI Error Attention register for
2372 * possible attention events. If so, it will post an Error Attention event
2373 * and wake up worker thread to process it. Otherwise, it will set up the
2374 * Error Attention polling timer for the next poll.
2375 **/
2376void lpfc_poll_eratt(unsigned long ptr)
2377{
2378 struct lpfc_hba *phba;
2379 uint32_t eratt = 0;
2380
2381 phba = (struct lpfc_hba *)ptr;
2382
2383 /* Check chip HA register for error event */
2384 eratt = lpfc_sli_check_eratt(phba);
2385
2386 if (eratt)
2387 /* Tell the worker thread there is work to do */
2388 lpfc_worker_wake_up(phba);
2389 else
2390 /* Restart the timer for next eratt poll */
2391 mod_timer(&phba->eratt_poll, jiffies +
2392 HZ * LPFC_ERATT_POLL_INTERVAL);
2393 return;
2394}
2395
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002396
James Smarte59058c2008-08-24 21:49:00 -04002397/**
James Smart3621a712009-04-06 18:47:14 -04002398 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
James Smarte59058c2008-08-24 21:49:00 -04002399 * @phba: Pointer to HBA context object.
2400 * @pring: Pointer to driver SLI ring object.
2401 * @mask: Host attention register mask for this ring.
2402 *
2403 * This function is called from the interrupt context when there is a ring
2404 * event for the fcp ring. The caller does not hold any lock.
2405 * The function processes each response iocb in the response ring until it
2406 * finds an iocb with LE bit set and chains all the iocbs upto the iocb with
2407 * LE bit set. The function will call the completion handler of the command iocb
2408 * if the response iocb indicates a completion for a command iocb or it is
2409 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2410 * function if this is an unsolicited iocb.
dea31012005-04-17 16:05:31 -05002411 * This routine presumes LPFC_FCP_RING handling and doesn't bother
James Smart45ed1192009-10-02 15:17:02 -04002412 * to check it explicitly.
2413 */
2414int
James Smart2e0fef82007-06-17 19:56:36 -05002415lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2416 struct lpfc_sli_ring *pring, uint32_t mask)
dea31012005-04-17 16:05:31 -05002417{
James Smart34b02dc2008-08-24 21:49:55 -04002418 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
dea31012005-04-17 16:05:31 -05002419 IOCB_t *irsp = NULL;
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002420 IOCB_t *entry = NULL;
dea31012005-04-17 16:05:31 -05002421 struct lpfc_iocbq *cmdiocbq = NULL;
2422 struct lpfc_iocbq rspiocbq;
dea31012005-04-17 16:05:31 -05002423 uint32_t status;
2424 uint32_t portRspPut, portRspMax;
2425 int rc = 1;
2426 lpfc_iocb_type type;
2427 unsigned long iflag;
2428 uint32_t rsp_cmpl = 0;
dea31012005-04-17 16:05:31 -05002429
James Smart2e0fef82007-06-17 19:56:36 -05002430 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002431 pring->stats.iocb_event++;
2432
dea31012005-04-17 16:05:31 -05002433 /*
2434 * The next available response entry should never exceed the maximum
2435 * entries. If it does, treat it as an adapter hardware error.
2436 */
2437 portRspMax = pring->numRiocb;
2438 portRspPut = le32_to_cpu(pgp->rspPutInx);
2439 if (unlikely(portRspPut >= portRspMax)) {
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002440 lpfc_sli_rsp_pointers_error(phba, pring);
James Smart2e0fef82007-06-17 19:56:36 -05002441 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002442 return 1;
2443 }
James Smart45ed1192009-10-02 15:17:02 -04002444 if (phba->fcp_ring_in_use) {
2445 spin_unlock_irqrestore(&phba->hbalock, iflag);
2446 return 1;
2447 } else
2448 phba->fcp_ring_in_use = 1;
dea31012005-04-17 16:05:31 -05002449
2450 rmb();
2451 while (pring->rspidx != portRspPut) {
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002452 /*
2453 * Fetch an entry off the ring and copy it into a local data
2454 * structure. The copy involves a byte-swap since the
2455 * network byte order and pci byte orders are different.
2456 */
James Smarted957682007-06-17 19:56:37 -05002457 entry = lpfc_resp_iocb(phba, pring);
James Smart858c9f62007-06-17 19:56:39 -05002458 phba->last_completion_time = jiffies;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002459
2460 if (++pring->rspidx >= portRspMax)
2461 pring->rspidx = 0;
2462
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002463 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
2464 (uint32_t *) &rspiocbq.iocb,
James Smarted957682007-06-17 19:56:37 -05002465 phba->iocb_rsp_size);
James Smarta4bc3372006-12-02 13:34:16 -05002466 INIT_LIST_HEAD(&(rspiocbq.list));
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002467 irsp = &rspiocbq.iocb;
2468
dea31012005-04-17 16:05:31 -05002469 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
2470 pring->stats.iocb_rsp++;
2471 rsp_cmpl++;
2472
2473 if (unlikely(irsp->ulpStatus)) {
James Smart92d7f7b2007-06-17 19:56:38 -05002474 /*
2475 * If resource errors reported from HBA, reduce
2476 * queuedepths of the SCSI device.
2477 */
2478 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2479 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
2480 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart3772a992009-05-22 14:50:54 -04002481 phba->lpfc_rampdown_queue_depth(phba);
James Smart92d7f7b2007-06-17 19:56:38 -05002482 spin_lock_irqsave(&phba->hbalock, iflag);
2483 }
2484
dea31012005-04-17 16:05:31 -05002485 /* Rsp ring <ringno> error: IOCB */
2486 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002487 "0336 Rsp Ring %d error: IOCB Data: "
James Smart92d7f7b2007-06-17 19:56:38 -05002488 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04002489 pring->ringno,
James Smart92d7f7b2007-06-17 19:56:38 -05002490 irsp->un.ulpWord[0],
2491 irsp->un.ulpWord[1],
2492 irsp->un.ulpWord[2],
2493 irsp->un.ulpWord[3],
2494 irsp->un.ulpWord[4],
2495 irsp->un.ulpWord[5],
James Smartd7c255b2008-08-24 21:50:00 -04002496 *(uint32_t *)&irsp->un1,
2497 *((uint32_t *)&irsp->un1 + 1));
dea31012005-04-17 16:05:31 -05002498 }
2499
2500 switch (type) {
2501 case LPFC_ABORT_IOCB:
2502 case LPFC_SOL_IOCB:
2503 /*
2504 * Idle exchange closed via ABTS from port. No iocb
2505 * resources need to be recovered.
2506 */
2507 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
James Smartdca94792006-08-01 07:34:08 -04002508 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002509 "0333 IOCB cmd 0x%x"
James Smartdca94792006-08-01 07:34:08 -04002510 " processed. Skipping"
James Smart92d7f7b2007-06-17 19:56:38 -05002511 " completion\n",
James Smartdca94792006-08-01 07:34:08 -04002512 irsp->ulpCommand);
dea31012005-04-17 16:05:31 -05002513 break;
2514 }
2515
James Bottomley604a3e32005-10-29 10:28:33 -05002516 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
2517 &rspiocbq);
dea31012005-04-17 16:05:31 -05002518 if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) {
James Smart2e0fef82007-06-17 19:56:36 -05002519 spin_unlock_irqrestore(&phba->hbalock,
2520 iflag);
Jamie Wellnitzb8086082006-02-28 22:33:12 -05002521 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
2522 &rspiocbq);
James Smart2e0fef82007-06-17 19:56:36 -05002523 spin_lock_irqsave(&phba->hbalock,
Jamie Wellnitzb8086082006-02-28 22:33:12 -05002524 iflag);
2525 }
dea31012005-04-17 16:05:31 -05002526 break;
James Smarta4bc3372006-12-02 13:34:16 -05002527 case LPFC_UNSOL_IOCB:
James Smart2e0fef82007-06-17 19:56:36 -05002528 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta4bc3372006-12-02 13:34:16 -05002529 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
James Smart2e0fef82007-06-17 19:56:36 -05002530 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta4bc3372006-12-02 13:34:16 -05002531 break;
dea31012005-04-17 16:05:31 -05002532 default:
2533 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
2534 char adaptermsg[LPFC_MAX_ADPTMSG];
2535 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
2536 memcpy(&adaptermsg[0], (uint8_t *) irsp,
2537 MAX_MSG_DATA);
Joe Perches898eb712007-10-18 03:06:30 -07002538 dev_warn(&((phba->pcidev)->dev),
2539 "lpfc%d: %s\n",
dea31012005-04-17 16:05:31 -05002540 phba->brd_no, adaptermsg);
2541 } else {
2542 /* Unknown IOCB command */
2543 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002544 "0334 Unknown IOCB command "
James Smart92d7f7b2007-06-17 19:56:38 -05002545 "Data: x%x, x%x x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04002546 type, irsp->ulpCommand,
James Smart92d7f7b2007-06-17 19:56:38 -05002547 irsp->ulpStatus,
2548 irsp->ulpIoTag,
2549 irsp->ulpContext);
dea31012005-04-17 16:05:31 -05002550 }
2551 break;
2552 }
2553
2554 /*
2555 * The response IOCB has been processed. Update the ring
2556 * pointer in SLIM. If the port response put pointer has not
2557 * been updated, sync the pgp->rspPutInx and fetch the new port
2558 * response put pointer.
2559 */
James Smarted957682007-06-17 19:56:37 -05002560 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
dea31012005-04-17 16:05:31 -05002561
2562 if (pring->rspidx == portRspPut)
2563 portRspPut = le32_to_cpu(pgp->rspPutInx);
2564 }
2565
2566 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
2567 pring->stats.iocb_rsp_full++;
2568 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
2569 writel(status, phba->CAregaddr);
2570 readl(phba->CAregaddr);
2571 }
2572 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
2573 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
2574 pring->stats.iocb_cmd_empty++;
2575
2576 /* Force update of the local copy of cmdGetInx */
2577 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
2578 lpfc_sli_resume_iocb(phba, pring);
2579
2580 if ((pring->lpfc_sli_cmd_available))
2581 (pring->lpfc_sli_cmd_available) (phba, pring);
2582
2583 }
2584
James Smart45ed1192009-10-02 15:17:02 -04002585 phba->fcp_ring_in_use = 0;
James Smart2e0fef82007-06-17 19:56:36 -05002586 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002587 return rc;
2588}
2589
James Smarte59058c2008-08-24 21:49:00 -04002590/**
James Smart3772a992009-05-22 14:50:54 -04002591 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
2592 * @phba: Pointer to HBA context object.
2593 * @pring: Pointer to driver SLI ring object.
2594 * @rspiocbp: Pointer to driver response IOCB object.
2595 *
2596 * This function is called from the worker thread when there is a slow-path
2597 * response IOCB to process. This function chains all the response iocbs until
2598 * seeing the iocb with the LE bit set. The function will call
2599 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
2600 * completion of a command iocb. The function will call the
2601 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
2602 * The function frees the resources or calls the completion handler if this
2603 * iocb is an abort completion. The function returns NULL when the response
2604 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
2605 * this function shall chain the iocb on to the iocb_continueq and return the
2606 * response iocb passed in.
2607 **/
2608static struct lpfc_iocbq *
2609lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2610 struct lpfc_iocbq *rspiocbp)
2611{
2612 struct lpfc_iocbq *saveq;
2613 struct lpfc_iocbq *cmdiocbp;
2614 struct lpfc_iocbq *next_iocb;
2615 IOCB_t *irsp = NULL;
2616 uint32_t free_saveq;
2617 uint8_t iocb_cmd_type;
2618 lpfc_iocb_type type;
2619 unsigned long iflag;
2620 int rc;
2621
2622 spin_lock_irqsave(&phba->hbalock, iflag);
2623 /* First add the response iocb to the countinueq list */
2624 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
2625 pring->iocb_continueq_cnt++;
2626
2627 /* Now, determine whetehr the list is completed for processing */
2628 irsp = &rspiocbp->iocb;
2629 if (irsp->ulpLe) {
2630 /*
2631 * By default, the driver expects to free all resources
2632 * associated with this iocb completion.
2633 */
2634 free_saveq = 1;
2635 saveq = list_get_first(&pring->iocb_continueq,
2636 struct lpfc_iocbq, list);
2637 irsp = &(saveq->iocb);
2638 list_del_init(&pring->iocb_continueq);
2639 pring->iocb_continueq_cnt = 0;
2640
2641 pring->stats.iocb_rsp++;
2642
2643 /*
2644 * If resource errors reported from HBA, reduce
2645 * queuedepths of the SCSI device.
2646 */
2647 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2648 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
2649 spin_unlock_irqrestore(&phba->hbalock, iflag);
2650 phba->lpfc_rampdown_queue_depth(phba);
2651 spin_lock_irqsave(&phba->hbalock, iflag);
2652 }
2653
2654 if (irsp->ulpStatus) {
2655 /* Rsp ring <ringno> error: IOCB */
2656 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2657 "0328 Rsp Ring %d error: "
2658 "IOCB Data: "
2659 "x%x x%x x%x x%x "
2660 "x%x x%x x%x x%x "
2661 "x%x x%x x%x x%x "
2662 "x%x x%x x%x x%x\n",
2663 pring->ringno,
2664 irsp->un.ulpWord[0],
2665 irsp->un.ulpWord[1],
2666 irsp->un.ulpWord[2],
2667 irsp->un.ulpWord[3],
2668 irsp->un.ulpWord[4],
2669 irsp->un.ulpWord[5],
2670 *(((uint32_t *) irsp) + 6),
2671 *(((uint32_t *) irsp) + 7),
2672 *(((uint32_t *) irsp) + 8),
2673 *(((uint32_t *) irsp) + 9),
2674 *(((uint32_t *) irsp) + 10),
2675 *(((uint32_t *) irsp) + 11),
2676 *(((uint32_t *) irsp) + 12),
2677 *(((uint32_t *) irsp) + 13),
2678 *(((uint32_t *) irsp) + 14),
2679 *(((uint32_t *) irsp) + 15));
2680 }
2681
2682 /*
2683 * Fetch the IOCB command type and call the correct completion
2684 * routine. Solicited and Unsolicited IOCBs on the ELS ring
2685 * get freed back to the lpfc_iocb_list by the discovery
2686 * kernel thread.
2687 */
2688 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
2689 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
2690 switch (type) {
2691 case LPFC_SOL_IOCB:
2692 spin_unlock_irqrestore(&phba->hbalock, iflag);
2693 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
2694 spin_lock_irqsave(&phba->hbalock, iflag);
2695 break;
2696
2697 case LPFC_UNSOL_IOCB:
2698 spin_unlock_irqrestore(&phba->hbalock, iflag);
2699 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
2700 spin_lock_irqsave(&phba->hbalock, iflag);
2701 if (!rc)
2702 free_saveq = 0;
2703 break;
2704
2705 case LPFC_ABORT_IOCB:
2706 cmdiocbp = NULL;
2707 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
2708 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
2709 saveq);
2710 if (cmdiocbp) {
2711 /* Call the specified completion routine */
2712 if (cmdiocbp->iocb_cmpl) {
2713 spin_unlock_irqrestore(&phba->hbalock,
2714 iflag);
2715 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
2716 saveq);
2717 spin_lock_irqsave(&phba->hbalock,
2718 iflag);
2719 } else
2720 __lpfc_sli_release_iocbq(phba,
2721 cmdiocbp);
2722 }
2723 break;
2724
2725 case LPFC_UNKNOWN_IOCB:
2726 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
2727 char adaptermsg[LPFC_MAX_ADPTMSG];
2728 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
2729 memcpy(&adaptermsg[0], (uint8_t *)irsp,
2730 MAX_MSG_DATA);
2731 dev_warn(&((phba->pcidev)->dev),
2732 "lpfc%d: %s\n",
2733 phba->brd_no, adaptermsg);
2734 } else {
2735 /* Unknown IOCB command */
2736 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2737 "0335 Unknown IOCB "
2738 "command Data: x%x "
2739 "x%x x%x x%x\n",
2740 irsp->ulpCommand,
2741 irsp->ulpStatus,
2742 irsp->ulpIoTag,
2743 irsp->ulpContext);
2744 }
2745 break;
2746 }
2747
2748 if (free_saveq) {
2749 list_for_each_entry_safe(rspiocbp, next_iocb,
2750 &saveq->list, list) {
2751 list_del(&rspiocbp->list);
2752 __lpfc_sli_release_iocbq(phba, rspiocbp);
2753 }
2754 __lpfc_sli_release_iocbq(phba, saveq);
2755 }
2756 rspiocbp = NULL;
2757 }
2758 spin_unlock_irqrestore(&phba->hbalock, iflag);
2759 return rspiocbp;
2760}
2761
2762/**
2763 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
James Smarte59058c2008-08-24 21:49:00 -04002764 * @phba: Pointer to HBA context object.
2765 * @pring: Pointer to driver SLI ring object.
2766 * @mask: Host attention register mask for this ring.
2767 *
James Smart3772a992009-05-22 14:50:54 -04002768 * This routine wraps the actual slow_ring event process routine from the
2769 * API jump table function pointer from the lpfc_hba struct.
James Smarte59058c2008-08-24 21:49:00 -04002770 **/
James Smart3772a992009-05-22 14:50:54 -04002771void
James Smart2e0fef82007-06-17 19:56:36 -05002772lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
2773 struct lpfc_sli_ring *pring, uint32_t mask)
dea31012005-04-17 16:05:31 -05002774{
James Smart3772a992009-05-22 14:50:54 -04002775 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
2776}
2777
2778/**
2779 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
2780 * @phba: Pointer to HBA context object.
2781 * @pring: Pointer to driver SLI ring object.
2782 * @mask: Host attention register mask for this ring.
2783 *
2784 * This function is called from the worker thread when there is a ring event
2785 * for non-fcp rings. The caller does not hold any lock. The function will
2786 * remove each response iocb in the response ring and calls the handle
2787 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
2788 **/
2789static void
2790lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
2791 struct lpfc_sli_ring *pring, uint32_t mask)
2792{
James Smart34b02dc2008-08-24 21:49:55 -04002793 struct lpfc_pgp *pgp;
dea31012005-04-17 16:05:31 -05002794 IOCB_t *entry;
2795 IOCB_t *irsp = NULL;
2796 struct lpfc_iocbq *rspiocbp = NULL;
dea31012005-04-17 16:05:31 -05002797 uint32_t portRspPut, portRspMax;
dea31012005-04-17 16:05:31 -05002798 unsigned long iflag;
James Smart3772a992009-05-22 14:50:54 -04002799 uint32_t status;
dea31012005-04-17 16:05:31 -05002800
James Smart34b02dc2008-08-24 21:49:55 -04002801 pgp = &phba->port_gp[pring->ringno];
James Smart2e0fef82007-06-17 19:56:36 -05002802 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002803 pring->stats.iocb_event++;
2804
dea31012005-04-17 16:05:31 -05002805 /*
2806 * The next available response entry should never exceed the maximum
2807 * entries. If it does, treat it as an adapter hardware error.
2808 */
2809 portRspMax = pring->numRiocb;
2810 portRspPut = le32_to_cpu(pgp->rspPutInx);
2811 if (portRspPut >= portRspMax) {
2812 /*
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02002813 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
dea31012005-04-17 16:05:31 -05002814 * rsp ring <portRspMax>
2815 */
James Smarted957682007-06-17 19:56:37 -05002816 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002817 "0303 Ring %d handler: portRspPut %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02002818 "is bigger than rsp ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04002819 pring->ringno, portRspPut, portRspMax);
dea31012005-04-17 16:05:31 -05002820
James Smart2e0fef82007-06-17 19:56:36 -05002821 phba->link_state = LPFC_HBA_ERROR;
2822 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002823
2824 phba->work_hs = HS_FFER3;
2825 lpfc_handle_eratt(phba);
2826
James Smart3772a992009-05-22 14:50:54 -04002827 return;
dea31012005-04-17 16:05:31 -05002828 }
2829
2830 rmb();
dea31012005-04-17 16:05:31 -05002831 while (pring->rspidx != portRspPut) {
2832 /*
2833 * Build a completion list and call the appropriate handler.
2834 * The process is to get the next available response iocb, get
2835 * a free iocb from the list, copy the response data into the
2836 * free iocb, insert to the continuation list, and update the
2837 * next response index to slim. This process makes response
2838 * iocb's in the ring available to DMA as fast as possible but
2839 * pays a penalty for a copy operation. Since the iocb is
2840 * only 32 bytes, this penalty is considered small relative to
2841 * the PCI reads for register values and a slim write. When
2842 * the ulpLe field is set, the entire Command has been
2843 * received.
2844 */
James Smarted957682007-06-17 19:56:37 -05002845 entry = lpfc_resp_iocb(phba, pring);
2846
James Smart858c9f62007-06-17 19:56:39 -05002847 phba->last_completion_time = jiffies;
James Smart2e0fef82007-06-17 19:56:36 -05002848 rspiocbp = __lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05002849 if (rspiocbp == NULL) {
2850 printk(KERN_ERR "%s: out of buffers! Failing "
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -07002851 "completion.\n", __func__);
dea31012005-04-17 16:05:31 -05002852 break;
2853 }
2854
James Smarted957682007-06-17 19:56:37 -05002855 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
2856 phba->iocb_rsp_size);
dea31012005-04-17 16:05:31 -05002857 irsp = &rspiocbp->iocb;
2858
2859 if (++pring->rspidx >= portRspMax)
2860 pring->rspidx = 0;
2861
James Smarta58cbd52007-08-02 11:09:43 -04002862 if (pring->ringno == LPFC_ELS_RING) {
2863 lpfc_debugfs_slow_ring_trc(phba,
2864 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
2865 *(((uint32_t *) irsp) + 4),
2866 *(((uint32_t *) irsp) + 6),
2867 *(((uint32_t *) irsp) + 7));
2868 }
2869
James Smarted957682007-06-17 19:56:37 -05002870 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
dea31012005-04-17 16:05:31 -05002871
James Smart3772a992009-05-22 14:50:54 -04002872 spin_unlock_irqrestore(&phba->hbalock, iflag);
2873 /* Handle the response IOCB */
2874 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
2875 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002876
2877 /*
2878 * If the port response put pointer has not been updated, sync
2879 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
2880 * response put pointer.
2881 */
2882 if (pring->rspidx == portRspPut) {
2883 portRspPut = le32_to_cpu(pgp->rspPutInx);
2884 }
2885 } /* while (pring->rspidx != portRspPut) */
2886
James Smart92d7f7b2007-06-17 19:56:38 -05002887 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
dea31012005-04-17 16:05:31 -05002888 /* At least one response entry has been freed */
2889 pring->stats.iocb_rsp_full++;
2890 /* SET RxRE_RSP in Chip Att register */
2891 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
2892 writel(status, phba->CAregaddr);
2893 readl(phba->CAregaddr); /* flush */
2894 }
2895 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
2896 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
2897 pring->stats.iocb_cmd_empty++;
2898
2899 /* Force update of the local copy of cmdGetInx */
2900 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
2901 lpfc_sli_resume_iocb(phba, pring);
2902
2903 if ((pring->lpfc_sli_cmd_available))
2904 (pring->lpfc_sli_cmd_available) (phba, pring);
2905
2906 }
2907
James Smart2e0fef82007-06-17 19:56:36 -05002908 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart3772a992009-05-22 14:50:54 -04002909 return;
dea31012005-04-17 16:05:31 -05002910}
2911
James Smarte59058c2008-08-24 21:49:00 -04002912/**
James Smart4f774512009-05-22 14:52:35 -04002913 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
2914 * @phba: Pointer to HBA context object.
2915 * @pring: Pointer to driver SLI ring object.
2916 * @mask: Host attention register mask for this ring.
2917 *
2918 * This function is called from the worker thread when there is a pending
2919 * ELS response iocb on the driver internal slow-path response iocb worker
2920 * queue. The caller does not hold any lock. The function will remove each
2921 * response iocb from the response worker queue and calls the handle
2922 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
2923 **/
2924static void
2925lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
2926 struct lpfc_sli_ring *pring, uint32_t mask)
2927{
2928 struct lpfc_iocbq *irspiocbq;
James Smart4d9ab992009-10-02 15:16:39 -04002929 struct hbq_dmabuf *dmabuf;
2930 struct lpfc_cq_event *cq_event;
James Smart4f774512009-05-22 14:52:35 -04002931 unsigned long iflag;
2932
James Smart45ed1192009-10-02 15:17:02 -04002933 spin_lock_irqsave(&phba->hbalock, iflag);
2934 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
2935 spin_unlock_irqrestore(&phba->hbalock, iflag);
2936 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
James Smart4f774512009-05-22 14:52:35 -04002937 /* Get the response iocb from the head of work queue */
2938 spin_lock_irqsave(&phba->hbalock, iflag);
James Smart45ed1192009-10-02 15:17:02 -04002939 list_remove_head(&phba->sli4_hba.sp_queue_event,
James Smart4d9ab992009-10-02 15:16:39 -04002940 cq_event, struct lpfc_cq_event, list);
James Smart4f774512009-05-22 14:52:35 -04002941 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart4d9ab992009-10-02 15:16:39 -04002942
2943 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
2944 case CQE_CODE_COMPL_WQE:
2945 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
2946 cq_event);
James Smart45ed1192009-10-02 15:17:02 -04002947 /* Translate ELS WCQE to response IOCBQ */
2948 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
2949 irspiocbq);
2950 if (irspiocbq)
2951 lpfc_sli_sp_handle_rspiocb(phba, pring,
2952 irspiocbq);
James Smart4d9ab992009-10-02 15:16:39 -04002953 break;
2954 case CQE_CODE_RECEIVE:
2955 dmabuf = container_of(cq_event, struct hbq_dmabuf,
2956 cq_event);
2957 lpfc_sli4_handle_received_buffer(phba, dmabuf);
2958 break;
2959 default:
2960 break;
2961 }
James Smart4f774512009-05-22 14:52:35 -04002962 }
2963}
2964
2965/**
James Smart3621a712009-04-06 18:47:14 -04002966 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
James Smarte59058c2008-08-24 21:49:00 -04002967 * @phba: Pointer to HBA context object.
2968 * @pring: Pointer to driver SLI ring object.
2969 *
2970 * This function aborts all iocbs in the given ring and frees all the iocb
2971 * objects in txq. This function issues an abort iocb for all the iocb commands
2972 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
2973 * the return of this function. The caller is not required to hold any locks.
2974 **/
James Smart2e0fef82007-06-17 19:56:36 -05002975void
dea31012005-04-17 16:05:31 -05002976lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2977{
James Smart2534ba72007-04-25 09:52:20 -04002978 LIST_HEAD(completions);
dea31012005-04-17 16:05:31 -05002979 struct lpfc_iocbq *iocb, *next_iocb;
dea31012005-04-17 16:05:31 -05002980
James Smart92d7f7b2007-06-17 19:56:38 -05002981 if (pring->ringno == LPFC_ELS_RING) {
2982 lpfc_fabric_abort_hba(phba);
2983 }
2984
dea31012005-04-17 16:05:31 -05002985 /* Error everything on txq and txcmplq
2986 * First do the txq.
2987 */
James Smart2e0fef82007-06-17 19:56:36 -05002988 spin_lock_irq(&phba->hbalock);
James Smart2534ba72007-04-25 09:52:20 -04002989 list_splice_init(&pring->txq, &completions);
dea31012005-04-17 16:05:31 -05002990 pring->txq_cnt = 0;
dea31012005-04-17 16:05:31 -05002991
2992 /* Next issue ABTS for everything on the txcmplq */
James Smart2534ba72007-04-25 09:52:20 -04002993 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
2994 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
2995
James Smart2e0fef82007-06-17 19:56:36 -05002996 spin_unlock_irq(&phba->hbalock);
James Smart2534ba72007-04-25 09:52:20 -04002997
James Smarta257bf92009-04-06 18:48:10 -04002998 /* Cancel all the IOCBs from the completions list */
2999 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3000 IOERR_SLI_ABORTED);
dea31012005-04-17 16:05:31 -05003001}
3002
James Smarte59058c2008-08-24 21:49:00 -04003003/**
James Smart3621a712009-04-06 18:47:14 -04003004 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
James Smarta8e497d2008-08-24 21:50:11 -04003005 * @phba: Pointer to HBA context object.
3006 *
3007 * This function flushes all iocbs in the fcp ring and frees all the iocb
3008 * objects in txq and txcmplq. This function will not issue abort iocbs
3009 * for all the iocb commands in txcmplq, they will just be returned with
3010 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3011 * slot has been permanently disabled.
3012 **/
3013void
3014lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3015{
3016 LIST_HEAD(txq);
3017 LIST_HEAD(txcmplq);
James Smarta8e497d2008-08-24 21:50:11 -04003018 struct lpfc_sli *psli = &phba->sli;
3019 struct lpfc_sli_ring *pring;
3020
3021 /* Currently, only one fcp ring */
3022 pring = &psli->ring[psli->fcp_ring];
3023
3024 spin_lock_irq(&phba->hbalock);
3025 /* Retrieve everything on txq */
3026 list_splice_init(&pring->txq, &txq);
3027 pring->txq_cnt = 0;
3028
3029 /* Retrieve everything on the txcmplq */
3030 list_splice_init(&pring->txcmplq, &txcmplq);
3031 pring->txcmplq_cnt = 0;
3032 spin_unlock_irq(&phba->hbalock);
3033
3034 /* Flush the txq */
James Smarta257bf92009-04-06 18:48:10 -04003035 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3036 IOERR_SLI_DOWN);
James Smarta8e497d2008-08-24 21:50:11 -04003037
3038 /* Flush the txcmpq */
James Smarta257bf92009-04-06 18:48:10 -04003039 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3040 IOERR_SLI_DOWN);
James Smarta8e497d2008-08-24 21:50:11 -04003041}
3042
3043/**
James Smart3772a992009-05-22 14:50:54 -04003044 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
James Smarte59058c2008-08-24 21:49:00 -04003045 * @phba: Pointer to HBA context object.
3046 * @mask: Bit mask to be checked.
3047 *
3048 * This function reads the host status register and compares
3049 * with the provided bit mask to check if HBA completed
3050 * the restart. This function will wait in a loop for the
3051 * HBA to complete restart. If the HBA does not restart within
3052 * 15 iterations, the function will reset the HBA again. The
3053 * function returns 1 when HBA fail to restart otherwise returns
3054 * zero.
3055 **/
James Smart3772a992009-05-22 14:50:54 -04003056static int
3057lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
dea31012005-04-17 16:05:31 -05003058{
Jamie Wellnitz41415862006-02-28 19:25:27 -05003059 uint32_t status;
3060 int i = 0;
3061 int retval = 0;
dea31012005-04-17 16:05:31 -05003062
Jamie Wellnitz41415862006-02-28 19:25:27 -05003063 /* Read the HBA Host Status Register */
3064 status = readl(phba->HSregaddr);
dea31012005-04-17 16:05:31 -05003065
Jamie Wellnitz41415862006-02-28 19:25:27 -05003066 /*
3067 * Check status register every 100ms for 5 retries, then every
3068 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3069 * every 2.5 sec for 4.
3070 * Break our of the loop if errors occurred during init.
3071 */
3072 while (((status & mask) != mask) &&
3073 !(status & HS_FFERM) &&
3074 i++ < 20) {
dea31012005-04-17 16:05:31 -05003075
Jamie Wellnitz41415862006-02-28 19:25:27 -05003076 if (i <= 5)
3077 msleep(10);
3078 else if (i <= 10)
3079 msleep(500);
3080 else
3081 msleep(2500);
dea31012005-04-17 16:05:31 -05003082
Jamie Wellnitz41415862006-02-28 19:25:27 -05003083 if (i == 15) {
James Smart2e0fef82007-06-17 19:56:36 -05003084 /* Do post */
James Smart92d7f7b2007-06-17 19:56:38 -05003085 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003086 lpfc_sli_brdrestart(phba);
3087 }
3088 /* Read the HBA Host Status Register */
3089 status = readl(phba->HSregaddr);
dea31012005-04-17 16:05:31 -05003090 }
dea31012005-04-17 16:05:31 -05003091
Jamie Wellnitz41415862006-02-28 19:25:27 -05003092 /* Check to see if any errors occurred during init */
3093 if ((status & HS_FFERM) || (i >= 20)) {
James Smart2e0fef82007-06-17 19:56:36 -05003094 phba->link_state = LPFC_HBA_ERROR;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003095 retval = 1;
3096 }
dea31012005-04-17 16:05:31 -05003097
Jamie Wellnitz41415862006-02-28 19:25:27 -05003098 return retval;
dea31012005-04-17 16:05:31 -05003099}
3100
James Smartda0436e2009-05-22 14:51:39 -04003101/**
3102 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3103 * @phba: Pointer to HBA context object.
3104 * @mask: Bit mask to be checked.
3105 *
3106 * This function checks the host status register to check if HBA is
3107 * ready. This function will wait in a loop for the HBA to be ready
3108 * If the HBA is not ready , the function will will reset the HBA PCI
3109 * function again. The function returns 1 when HBA fail to be ready
3110 * otherwise returns zero.
3111 **/
3112static int
3113lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3114{
3115 uint32_t status;
3116 int retval = 0;
3117
3118 /* Read the HBA Host Status Register */
3119 status = lpfc_sli4_post_status_check(phba);
3120
3121 if (status) {
3122 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3123 lpfc_sli_brdrestart(phba);
3124 status = lpfc_sli4_post_status_check(phba);
3125 }
3126
3127 /* Check to see if any errors occurred during init */
3128 if (status) {
3129 phba->link_state = LPFC_HBA_ERROR;
3130 retval = 1;
3131 } else
3132 phba->sli4_hba.intr_enable = 0;
3133
3134 return retval;
3135}
3136
3137/**
3138 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3139 * @phba: Pointer to HBA context object.
3140 * @mask: Bit mask to be checked.
3141 *
3142 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3143 * from the API jump table function pointer from the lpfc_hba struct.
3144 **/
3145int
3146lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3147{
3148 return phba->lpfc_sli_brdready(phba, mask);
3149}
3150
James Smart92908312006-03-07 15:04:13 -05003151#define BARRIER_TEST_PATTERN (0xdeadbeef)
3152
James Smarte59058c2008-08-24 21:49:00 -04003153/**
James Smart3621a712009-04-06 18:47:14 -04003154 * lpfc_reset_barrier - Make HBA ready for HBA reset
James Smarte59058c2008-08-24 21:49:00 -04003155 * @phba: Pointer to HBA context object.
3156 *
3157 * This function is called before resetting an HBA. This
3158 * function requests HBA to quiesce DMAs before a reset.
3159 **/
James Smart2e0fef82007-06-17 19:56:36 -05003160void lpfc_reset_barrier(struct lpfc_hba *phba)
James Smart92908312006-03-07 15:04:13 -05003161{
James Smart65a29c12006-07-06 15:50:50 -04003162 uint32_t __iomem *resp_buf;
3163 uint32_t __iomem *mbox_buf;
James Smart92908312006-03-07 15:04:13 -05003164 volatile uint32_t mbox;
3165 uint32_t hc_copy;
3166 int i;
3167 uint8_t hdrtype;
3168
3169 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3170 if (hdrtype != 0x80 ||
3171 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3172 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3173 return;
3174
3175 /*
3176 * Tell the other part of the chip to suspend temporarily all
3177 * its DMA activity.
3178 */
James Smart65a29c12006-07-06 15:50:50 -04003179 resp_buf = phba->MBslimaddr;
James Smart92908312006-03-07 15:04:13 -05003180
3181 /* Disable the error attention */
3182 hc_copy = readl(phba->HCregaddr);
3183 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3184 readl(phba->HCregaddr); /* flush */
James Smart2e0fef82007-06-17 19:56:36 -05003185 phba->link_flag |= LS_IGNORE_ERATT;
James Smart92908312006-03-07 15:04:13 -05003186
3187 if (readl(phba->HAregaddr) & HA_ERATT) {
3188 /* Clear Chip error bit */
3189 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05003190 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05003191 }
3192
3193 mbox = 0;
3194 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3195 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3196
3197 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
James Smart65a29c12006-07-06 15:50:50 -04003198 mbox_buf = phba->MBslimaddr;
James Smart92908312006-03-07 15:04:13 -05003199 writel(mbox, mbox_buf);
3200
3201 for (i = 0;
3202 readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++)
3203 mdelay(1);
3204
3205 if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) {
James Smartf4b4c682009-05-22 14:53:12 -04003206 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
James Smart2e0fef82007-06-17 19:56:36 -05003207 phba->pport->stopped)
James Smart92908312006-03-07 15:04:13 -05003208 goto restore_hc;
3209 else
3210 goto clear_errat;
3211 }
3212
3213 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3214 for (i = 0; readl(resp_buf) != mbox && i < 500; i++)
3215 mdelay(1);
3216
3217clear_errat:
3218
3219 while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500)
3220 mdelay(1);
3221
3222 if (readl(phba->HAregaddr) & HA_ERATT) {
3223 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05003224 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05003225 }
3226
3227restore_hc:
James Smart2e0fef82007-06-17 19:56:36 -05003228 phba->link_flag &= ~LS_IGNORE_ERATT;
James Smart92908312006-03-07 15:04:13 -05003229 writel(hc_copy, phba->HCregaddr);
3230 readl(phba->HCregaddr); /* flush */
3231}
3232
James Smarte59058c2008-08-24 21:49:00 -04003233/**
James Smart3621a712009-04-06 18:47:14 -04003234 * lpfc_sli_brdkill - Issue a kill_board mailbox command
James Smarte59058c2008-08-24 21:49:00 -04003235 * @phba: Pointer to HBA context object.
3236 *
3237 * This function issues a kill_board mailbox command and waits for
3238 * the error attention interrupt. This function is called for stopping
3239 * the firmware processing. The caller is not required to hold any
3240 * locks. This function calls lpfc_hba_down_post function to free
3241 * any pending commands after the kill. The function will return 1 when it
3242 * fails to kill the board else will return 0.
3243 **/
Jamie Wellnitz41415862006-02-28 19:25:27 -05003244int
James Smart2e0fef82007-06-17 19:56:36 -05003245lpfc_sli_brdkill(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05003246{
Jamie Wellnitz41415862006-02-28 19:25:27 -05003247 struct lpfc_sli *psli;
3248 LPFC_MBOXQ_t *pmb;
3249 uint32_t status;
3250 uint32_t ha_copy;
3251 int retval;
3252 int i = 0;
3253
3254 psli = &phba->sli;
3255
3256 /* Kill HBA */
James Smarted957682007-06-17 19:56:37 -05003257 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003258 "0329 Kill HBA Data: x%x x%x\n",
3259 phba->pport->port_state, psli->sli_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003260
James Smart98c9ea52007-10-27 13:37:33 -04003261 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3262 if (!pmb)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003263 return 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003264
3265 /* Disable the error attention */
James Smart2e0fef82007-06-17 19:56:36 -05003266 spin_lock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003267 status = readl(phba->HCregaddr);
3268 status &= ~HC_ERINT_ENA;
3269 writel(status, phba->HCregaddr);
3270 readl(phba->HCregaddr); /* flush */
James Smart2e0fef82007-06-17 19:56:36 -05003271 phba->link_flag |= LS_IGNORE_ERATT;
3272 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003273
3274 lpfc_kill_board(phba, pmb);
3275 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3276 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3277
3278 if (retval != MBX_SUCCESS) {
3279 if (retval != MBX_BUSY)
3280 mempool_free(pmb, phba->mbox_mem_pool);
James Smart2e0fef82007-06-17 19:56:36 -05003281 spin_lock_irq(&phba->hbalock);
3282 phba->link_flag &= ~LS_IGNORE_ERATT;
3283 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003284 return 1;
3285 }
3286
James Smartf4b4c682009-05-22 14:53:12 -04003287 spin_lock_irq(&phba->hbalock);
3288 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3289 spin_unlock_irq(&phba->hbalock);
James Smart92908312006-03-07 15:04:13 -05003290
Jamie Wellnitz41415862006-02-28 19:25:27 -05003291 mempool_free(pmb, phba->mbox_mem_pool);
3292
3293 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3294 * attention every 100ms for 3 seconds. If we don't get ERATT after
3295 * 3 seconds we still set HBA_ERROR state because the status of the
3296 * board is now undefined.
3297 */
3298 ha_copy = readl(phba->HAregaddr);
3299
3300 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3301 mdelay(100);
3302 ha_copy = readl(phba->HAregaddr);
3303 }
3304
3305 del_timer_sync(&psli->mbox_tmo);
James Smart92908312006-03-07 15:04:13 -05003306 if (ha_copy & HA_ERATT) {
3307 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05003308 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05003309 }
James Smart2e0fef82007-06-17 19:56:36 -05003310 spin_lock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003311 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart04c68492009-05-22 14:52:52 -04003312 psli->mbox_active = NULL;
James Smart2e0fef82007-06-17 19:56:36 -05003313 phba->link_flag &= ~LS_IGNORE_ERATT;
3314 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003315
Jamie Wellnitz41415862006-02-28 19:25:27 -05003316 lpfc_hba_down_post(phba);
James Smart2e0fef82007-06-17 19:56:36 -05003317 phba->link_state = LPFC_HBA_ERROR;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003318
James Smart2e0fef82007-06-17 19:56:36 -05003319 return ha_copy & HA_ERATT ? 0 : 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003320}
3321
James Smarte59058c2008-08-24 21:49:00 -04003322/**
James Smart3772a992009-05-22 14:50:54 -04003323 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
James Smarte59058c2008-08-24 21:49:00 -04003324 * @phba: Pointer to HBA context object.
3325 *
3326 * This function resets the HBA by writing HC_INITFF to the control
3327 * register. After the HBA resets, this function resets all the iocb ring
3328 * indices. This function disables PCI layer parity checking during
3329 * the reset.
3330 * This function returns 0 always.
3331 * The caller is not required to hold any locks.
3332 **/
Jamie Wellnitz41415862006-02-28 19:25:27 -05003333int
James Smart2e0fef82007-06-17 19:56:36 -05003334lpfc_sli_brdreset(struct lpfc_hba *phba)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003335{
3336 struct lpfc_sli *psli;
dea31012005-04-17 16:05:31 -05003337 struct lpfc_sli_ring *pring;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003338 uint16_t cfg_value;
dea31012005-04-17 16:05:31 -05003339 int i;
dea31012005-04-17 16:05:31 -05003340
Jamie Wellnitz41415862006-02-28 19:25:27 -05003341 psli = &phba->sli;
dea31012005-04-17 16:05:31 -05003342
Jamie Wellnitz41415862006-02-28 19:25:27 -05003343 /* Reset HBA */
3344 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003345 "0325 Reset HBA Data: x%x x%x\n",
James Smart2e0fef82007-06-17 19:56:36 -05003346 phba->pport->port_state, psli->sli_flag);
dea31012005-04-17 16:05:31 -05003347
3348 /* perform board reset */
3349 phba->fc_eventTag = 0;
James Smart4d9ab992009-10-02 15:16:39 -04003350 phba->link_events = 0;
James Smart2e0fef82007-06-17 19:56:36 -05003351 phba->pport->fc_myDID = 0;
3352 phba->pport->fc_prevDID = 0;
dea31012005-04-17 16:05:31 -05003353
Jamie Wellnitz41415862006-02-28 19:25:27 -05003354 /* Turn off parity checking and serr during the physical reset */
3355 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3356 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3357 (cfg_value &
3358 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3359
James Smart3772a992009-05-22 14:50:54 -04003360 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
3361
Jamie Wellnitz41415862006-02-28 19:25:27 -05003362 /* Now toggle INITFF bit in the Host Control Register */
3363 writel(HC_INITFF, phba->HCregaddr);
3364 mdelay(1);
3365 readl(phba->HCregaddr); /* flush */
3366 writel(0, phba->HCregaddr);
3367 readl(phba->HCregaddr); /* flush */
3368
3369 /* Restore PCI cmd register */
3370 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
dea31012005-04-17 16:05:31 -05003371
3372 /* Initialize relevant SLI info */
Jamie Wellnitz41415862006-02-28 19:25:27 -05003373 for (i = 0; i < psli->num_rings; i++) {
3374 pring = &psli->ring[i];
dea31012005-04-17 16:05:31 -05003375 pring->flag = 0;
3376 pring->rspidx = 0;
3377 pring->next_cmdidx = 0;
3378 pring->local_getidx = 0;
3379 pring->cmdidx = 0;
3380 pring->missbufcnt = 0;
3381 }
dea31012005-04-17 16:05:31 -05003382
James Smart2e0fef82007-06-17 19:56:36 -05003383 phba->link_state = LPFC_WARM_START;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003384 return 0;
3385}
3386
James Smarte59058c2008-08-24 21:49:00 -04003387/**
James Smartda0436e2009-05-22 14:51:39 -04003388 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3389 * @phba: Pointer to HBA context object.
3390 *
3391 * This function resets a SLI4 HBA. This function disables PCI layer parity
3392 * checking during resets the device. The caller is not required to hold
3393 * any locks.
3394 *
3395 * This function returns 0 always.
3396 **/
3397int
3398lpfc_sli4_brdreset(struct lpfc_hba *phba)
3399{
3400 struct lpfc_sli *psli = &phba->sli;
3401 uint16_t cfg_value;
3402 uint8_t qindx;
3403
3404 /* Reset HBA */
3405 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3406 "0295 Reset HBA Data: x%x x%x\n",
3407 phba->pport->port_state, psli->sli_flag);
3408
3409 /* perform board reset */
3410 phba->fc_eventTag = 0;
James Smart4d9ab992009-10-02 15:16:39 -04003411 phba->link_events = 0;
James Smartda0436e2009-05-22 14:51:39 -04003412 phba->pport->fc_myDID = 0;
3413 phba->pport->fc_prevDID = 0;
3414
3415 /* Turn off parity checking and serr during the physical reset */
3416 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3417 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3418 (cfg_value &
3419 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3420
3421 spin_lock_irq(&phba->hbalock);
3422 psli->sli_flag &= ~(LPFC_PROCESS_LA);
3423 phba->fcf.fcf_flag = 0;
3424 /* Clean up the child queue list for the CQs */
3425 list_del_init(&phba->sli4_hba.mbx_wq->list);
3426 list_del_init(&phba->sli4_hba.els_wq->list);
3427 list_del_init(&phba->sli4_hba.hdr_rq->list);
3428 list_del_init(&phba->sli4_hba.dat_rq->list);
3429 list_del_init(&phba->sli4_hba.mbx_cq->list);
3430 list_del_init(&phba->sli4_hba.els_cq->list);
James Smartda0436e2009-05-22 14:51:39 -04003431 for (qindx = 0; qindx < phba->cfg_fcp_wq_count; qindx++)
3432 list_del_init(&phba->sli4_hba.fcp_wq[qindx]->list);
3433 for (qindx = 0; qindx < phba->cfg_fcp_eq_count; qindx++)
3434 list_del_init(&phba->sli4_hba.fcp_cq[qindx]->list);
3435 spin_unlock_irq(&phba->hbalock);
3436
3437 /* Now physically reset the device */
3438 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3439 "0389 Performing PCI function reset!\n");
3440 /* Perform FCoE PCI function reset */
3441 lpfc_pci_function_reset(phba);
3442
3443 return 0;
3444}
3445
3446/**
3447 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
James Smarte59058c2008-08-24 21:49:00 -04003448 * @phba: Pointer to HBA context object.
3449 *
3450 * This function is called in the SLI initialization code path to
3451 * restart the HBA. The caller is not required to hold any lock.
3452 * This function writes MBX_RESTART mailbox command to the SLIM and
3453 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
3454 * function to free any pending commands. The function enables
3455 * POST only during the first initialization. The function returns zero.
3456 * The function does not guarantee completion of MBX_RESTART mailbox
3457 * command before the return of this function.
3458 **/
James Smartda0436e2009-05-22 14:51:39 -04003459static int
3460lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003461{
3462 MAILBOX_t *mb;
3463 struct lpfc_sli *psli;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003464 volatile uint32_t word0;
3465 void __iomem *to_slim;
James Smart0d878412009-10-02 15:16:56 -04003466 uint32_t hba_aer_enabled;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003467
James Smart2e0fef82007-06-17 19:56:36 -05003468 spin_lock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003469
James Smart0d878412009-10-02 15:16:56 -04003470 /* Take PCIe device Advanced Error Reporting (AER) state */
3471 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
3472
Jamie Wellnitz41415862006-02-28 19:25:27 -05003473 psli = &phba->sli;
3474
3475 /* Restart HBA */
3476 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003477 "0337 Restart HBA Data: x%x x%x\n",
James Smart2e0fef82007-06-17 19:56:36 -05003478 phba->pport->port_state, psli->sli_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003479
3480 word0 = 0;
3481 mb = (MAILBOX_t *) &word0;
3482 mb->mbxCommand = MBX_RESTART;
3483 mb->mbxHc = 1;
3484
James Smart92908312006-03-07 15:04:13 -05003485 lpfc_reset_barrier(phba);
3486
Jamie Wellnitz41415862006-02-28 19:25:27 -05003487 to_slim = phba->MBslimaddr;
3488 writel(*(uint32_t *) mb, to_slim);
3489 readl(to_slim); /* flush */
3490
3491 /* Only skip post after fc_ffinit is completed */
James Smarteaf15d52008-12-04 22:39:29 -05003492 if (phba->pport->port_state)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003493 word0 = 1; /* This is really setting up word1 */
James Smarteaf15d52008-12-04 22:39:29 -05003494 else
Jamie Wellnitz41415862006-02-28 19:25:27 -05003495 word0 = 0; /* This is really setting up word1 */
James Smart65a29c12006-07-06 15:50:50 -04003496 to_slim = phba->MBslimaddr + sizeof (uint32_t);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003497 writel(*(uint32_t *) mb, to_slim);
3498 readl(to_slim); /* flush */
3499
3500 lpfc_sli_brdreset(phba);
James Smart2e0fef82007-06-17 19:56:36 -05003501 phba->pport->stopped = 0;
3502 phba->link_state = LPFC_INIT_START;
James Smartda0436e2009-05-22 14:51:39 -04003503 phba->hba_flag = 0;
James Smart2e0fef82007-06-17 19:56:36 -05003504 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003505
James Smart64ba8812006-08-02 15:24:34 -04003506 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
3507 psli->stats_start = get_seconds();
3508
James Smarteaf15d52008-12-04 22:39:29 -05003509 /* Give the INITFF and Post time to settle. */
3510 mdelay(100);
dea31012005-04-17 16:05:31 -05003511
James Smart0d878412009-10-02 15:16:56 -04003512 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3513 if (hba_aer_enabled)
3514 pci_disable_pcie_error_reporting(phba->pcidev);
3515
Jamie Wellnitz41415862006-02-28 19:25:27 -05003516 lpfc_hba_down_post(phba);
dea31012005-04-17 16:05:31 -05003517
3518 return 0;
3519}
3520
James Smarte59058c2008-08-24 21:49:00 -04003521/**
James Smartda0436e2009-05-22 14:51:39 -04003522 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
3523 * @phba: Pointer to HBA context object.
3524 *
3525 * This function is called in the SLI initialization code path to restart
3526 * a SLI4 HBA. The caller is not required to hold any lock.
3527 * At the end of the function, it calls lpfc_hba_down_post function to
3528 * free any pending commands.
3529 **/
3530static int
3531lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
3532{
3533 struct lpfc_sli *psli = &phba->sli;
3534
3535
3536 /* Restart HBA */
3537 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3538 "0296 Restart HBA Data: x%x x%x\n",
3539 phba->pport->port_state, psli->sli_flag);
3540
3541 lpfc_sli4_brdreset(phba);
3542
3543 spin_lock_irq(&phba->hbalock);
3544 phba->pport->stopped = 0;
3545 phba->link_state = LPFC_INIT_START;
3546 phba->hba_flag = 0;
3547 spin_unlock_irq(&phba->hbalock);
3548
3549 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
3550 psli->stats_start = get_seconds();
3551
3552 lpfc_hba_down_post(phba);
3553
3554 return 0;
3555}
3556
3557/**
3558 * lpfc_sli_brdrestart - Wrapper func for restarting hba
3559 * @phba: Pointer to HBA context object.
3560 *
3561 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
3562 * API jump table function pointer from the lpfc_hba struct.
3563**/
3564int
3565lpfc_sli_brdrestart(struct lpfc_hba *phba)
3566{
3567 return phba->lpfc_sli_brdrestart(phba);
3568}
3569
3570/**
James Smart3621a712009-04-06 18:47:14 -04003571 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
James Smarte59058c2008-08-24 21:49:00 -04003572 * @phba: Pointer to HBA context object.
3573 *
3574 * This function is called after a HBA restart to wait for successful
3575 * restart of the HBA. Successful restart of the HBA is indicated by
3576 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
3577 * iteration, the function will restart the HBA again. The function returns
3578 * zero if HBA successfully restarted else returns negative error code.
3579 **/
dea31012005-04-17 16:05:31 -05003580static int
3581lpfc_sli_chipset_init(struct lpfc_hba *phba)
3582{
3583 uint32_t status, i = 0;
3584
3585 /* Read the HBA Host Status Register */
3586 status = readl(phba->HSregaddr);
3587
3588 /* Check status register to see what current state is */
3589 i = 0;
3590 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
3591
3592 /* Check every 100ms for 5 retries, then every 500ms for 5, then
3593 * every 2.5 sec for 5, then reset board and every 2.5 sec for
3594 * 4.
3595 */
3596 if (i++ >= 20) {
3597 /* Adapter failed to init, timeout, status reg
3598 <status> */
James Smarted957682007-06-17 19:56:37 -05003599 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04003600 "0436 Adapter failed to init, "
James Smart09372822008-01-11 01:52:54 -05003601 "timeout, status reg x%x, "
3602 "FW Data: A8 x%x AC x%x\n", status,
3603 readl(phba->MBslimaddr + 0xa8),
3604 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05003605 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05003606 return -ETIMEDOUT;
3607 }
3608
3609 /* Check to see if any errors occurred during init */
3610 if (status & HS_FFERM) {
3611 /* ERROR: During chipset initialization */
3612 /* Adapter failed to init, chipset, status reg
3613 <status> */
James Smarted957682007-06-17 19:56:37 -05003614 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04003615 "0437 Adapter failed to init, "
James Smart09372822008-01-11 01:52:54 -05003616 "chipset, status reg x%x, "
3617 "FW Data: A8 x%x AC x%x\n", status,
3618 readl(phba->MBslimaddr + 0xa8),
3619 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05003620 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05003621 return -EIO;
3622 }
3623
3624 if (i <= 5) {
3625 msleep(10);
3626 } else if (i <= 10) {
3627 msleep(500);
3628 } else {
3629 msleep(2500);
3630 }
3631
3632 if (i == 15) {
James Smart2e0fef82007-06-17 19:56:36 -05003633 /* Do post */
James Smart92d7f7b2007-06-17 19:56:38 -05003634 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003635 lpfc_sli_brdrestart(phba);
dea31012005-04-17 16:05:31 -05003636 }
3637 /* Read the HBA Host Status Register */
3638 status = readl(phba->HSregaddr);
3639 }
3640
3641 /* Check to see if any errors occurred during init */
3642 if (status & HS_FFERM) {
3643 /* ERROR: During chipset initialization */
3644 /* Adapter failed to init, chipset, status reg <status> */
James Smarted957682007-06-17 19:56:37 -05003645 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04003646 "0438 Adapter failed to init, chipset, "
James Smart09372822008-01-11 01:52:54 -05003647 "status reg x%x, "
3648 "FW Data: A8 x%x AC x%x\n", status,
3649 readl(phba->MBslimaddr + 0xa8),
3650 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05003651 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05003652 return -EIO;
3653 }
3654
3655 /* Clear all interrupt enable conditions */
3656 writel(0, phba->HCregaddr);
3657 readl(phba->HCregaddr); /* flush */
3658
3659 /* setup host attn register */
3660 writel(0xffffffff, phba->HAregaddr);
3661 readl(phba->HAregaddr); /* flush */
3662 return 0;
3663}
3664
James Smarte59058c2008-08-24 21:49:00 -04003665/**
James Smart3621a712009-04-06 18:47:14 -04003666 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
James Smarte59058c2008-08-24 21:49:00 -04003667 *
3668 * This function calculates and returns the number of HBQs required to be
3669 * configured.
3670 **/
James Smart78b2d852007-08-02 11:10:21 -04003671int
James Smarted957682007-06-17 19:56:37 -05003672lpfc_sli_hbq_count(void)
3673{
James Smart92d7f7b2007-06-17 19:56:38 -05003674 return ARRAY_SIZE(lpfc_hbq_defs);
James Smarted957682007-06-17 19:56:37 -05003675}
3676
James Smarte59058c2008-08-24 21:49:00 -04003677/**
James Smart3621a712009-04-06 18:47:14 -04003678 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
James Smarte59058c2008-08-24 21:49:00 -04003679 *
3680 * This function adds the number of hbq entries in every HBQ to get
3681 * the total number of hbq entries required for the HBA and returns
3682 * the total count.
3683 **/
James Smarted957682007-06-17 19:56:37 -05003684static int
3685lpfc_sli_hbq_entry_count(void)
3686{
3687 int hbq_count = lpfc_sli_hbq_count();
3688 int count = 0;
3689 int i;
3690
3691 for (i = 0; i < hbq_count; ++i)
James Smart92d7f7b2007-06-17 19:56:38 -05003692 count += lpfc_hbq_defs[i]->entry_count;
James Smarted957682007-06-17 19:56:37 -05003693 return count;
3694}
3695
James Smarte59058c2008-08-24 21:49:00 -04003696/**
James Smart3621a712009-04-06 18:47:14 -04003697 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
James Smarte59058c2008-08-24 21:49:00 -04003698 *
3699 * This function calculates amount of memory required for all hbq entries
3700 * to be configured and returns the total memory required.
3701 **/
dea31012005-04-17 16:05:31 -05003702int
James Smarted957682007-06-17 19:56:37 -05003703lpfc_sli_hbq_size(void)
3704{
3705 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
3706}
3707
James Smarte59058c2008-08-24 21:49:00 -04003708/**
James Smart3621a712009-04-06 18:47:14 -04003709 * lpfc_sli_hbq_setup - configure and initialize HBQs
James Smarte59058c2008-08-24 21:49:00 -04003710 * @phba: Pointer to HBA context object.
3711 *
3712 * This function is called during the SLI initialization to configure
3713 * all the HBQs and post buffers to the HBQ. The caller is not
3714 * required to hold any locks. This function will return zero if successful
3715 * else it will return negative error code.
3716 **/
James Smarted957682007-06-17 19:56:37 -05003717static int
3718lpfc_sli_hbq_setup(struct lpfc_hba *phba)
3719{
3720 int hbq_count = lpfc_sli_hbq_count();
3721 LPFC_MBOXQ_t *pmb;
3722 MAILBOX_t *pmbox;
3723 uint32_t hbqno;
3724 uint32_t hbq_entry_index;
James Smarted957682007-06-17 19:56:37 -05003725
James Smart92d7f7b2007-06-17 19:56:38 -05003726 /* Get a Mailbox buffer to setup mailbox
3727 * commands for HBA initialization
3728 */
James Smarted957682007-06-17 19:56:37 -05003729 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3730
3731 if (!pmb)
3732 return -ENOMEM;
3733
James Smart04c68492009-05-22 14:52:52 -04003734 pmbox = &pmb->u.mb;
James Smarted957682007-06-17 19:56:37 -05003735
3736 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
3737 phba->link_state = LPFC_INIT_MBX_CMDS;
James Smart3163f722008-02-08 18:50:25 -05003738 phba->hbq_in_use = 1;
James Smarted957682007-06-17 19:56:37 -05003739
3740 hbq_entry_index = 0;
3741 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
3742 phba->hbqs[hbqno].next_hbqPutIdx = 0;
3743 phba->hbqs[hbqno].hbqPutIdx = 0;
3744 phba->hbqs[hbqno].local_hbqGetIdx = 0;
3745 phba->hbqs[hbqno].entry_count =
James Smart92d7f7b2007-06-17 19:56:38 -05003746 lpfc_hbq_defs[hbqno]->entry_count;
James Smart51ef4c22007-08-02 11:10:31 -04003747 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
3748 hbq_entry_index, pmb);
James Smarted957682007-06-17 19:56:37 -05003749 hbq_entry_index += phba->hbqs[hbqno].entry_count;
3750
3751 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
3752 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
3753 mbxStatus <status>, ring <num> */
3754
3755 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05003756 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04003757 "1805 Adapter failed to init. "
James Smarted957682007-06-17 19:56:37 -05003758 "Data: x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04003759 pmbox->mbxCommand,
James Smarted957682007-06-17 19:56:37 -05003760 pmbox->mbxStatus, hbqno);
3761
3762 phba->link_state = LPFC_HBA_ERROR;
3763 mempool_free(pmb, phba->mbox_mem_pool);
James Smarted957682007-06-17 19:56:37 -05003764 return ENXIO;
3765 }
3766 }
3767 phba->hbq_count = hbq_count;
3768
James Smarted957682007-06-17 19:56:37 -05003769 mempool_free(pmb, phba->mbox_mem_pool);
3770
James Smart92d7f7b2007-06-17 19:56:38 -05003771 /* Initially populate or replenish the HBQs */
James Smartd7c255b2008-08-24 21:50:00 -04003772 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
3773 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
James Smarted957682007-06-17 19:56:37 -05003774 return 0;
3775}
3776
James Smarte59058c2008-08-24 21:49:00 -04003777/**
James Smart4f774512009-05-22 14:52:35 -04003778 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
3779 * @phba: Pointer to HBA context object.
3780 *
3781 * This function is called during the SLI initialization to configure
3782 * all the HBQs and post buffers to the HBQ. The caller is not
3783 * required to hold any locks. This function will return zero if successful
3784 * else it will return negative error code.
3785 **/
3786static int
3787lpfc_sli4_rb_setup(struct lpfc_hba *phba)
3788{
3789 phba->hbq_in_use = 1;
3790 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
3791 phba->hbq_count = 1;
3792 /* Initially populate or replenish the HBQs */
3793 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
3794 return 0;
3795}
3796
3797/**
James Smart3621a712009-04-06 18:47:14 -04003798 * lpfc_sli_config_port - Issue config port mailbox command
James Smarte59058c2008-08-24 21:49:00 -04003799 * @phba: Pointer to HBA context object.
3800 * @sli_mode: sli mode - 2/3
3801 *
3802 * This function is called by the sli intialization code path
3803 * to issue config_port mailbox command. This function restarts the
3804 * HBA firmware and issues a config_port mailbox command to configure
3805 * the SLI interface in the sli mode specified by sli_mode
3806 * variable. The caller is not required to hold any locks.
3807 * The function returns 0 if successful, else returns negative error
3808 * code.
3809 **/
James Smart93996272008-08-24 21:50:30 -04003810int
3811lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
dea31012005-04-17 16:05:31 -05003812{
3813 LPFC_MBOXQ_t *pmb;
3814 uint32_t resetcount = 0, rc = 0, done = 0;
3815
3816 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3817 if (!pmb) {
James Smart2e0fef82007-06-17 19:56:36 -05003818 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05003819 return -ENOMEM;
3820 }
3821
James Smarted957682007-06-17 19:56:37 -05003822 phba->sli_rev = sli_mode;
dea31012005-04-17 16:05:31 -05003823 while (resetcount < 2 && !done) {
James Smart2e0fef82007-06-17 19:56:36 -05003824 spin_lock_irq(&phba->hbalock);
James Smart1c067a42006-08-01 07:33:52 -04003825 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05003826 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05003827 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003828 lpfc_sli_brdrestart(phba);
dea31012005-04-17 16:05:31 -05003829 rc = lpfc_sli_chipset_init(phba);
3830 if (rc)
3831 break;
3832
James Smart2e0fef82007-06-17 19:56:36 -05003833 spin_lock_irq(&phba->hbalock);
James Smart1c067a42006-08-01 07:33:52 -04003834 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05003835 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05003836 resetcount++;
3837
James Smarted957682007-06-17 19:56:37 -05003838 /* Call pre CONFIG_PORT mailbox command initialization. A
3839 * value of 0 means the call was successful. Any other
3840 * nonzero value is a failure, but if ERESTART is returned,
3841 * the driver may reset the HBA and try again.
3842 */
dea31012005-04-17 16:05:31 -05003843 rc = lpfc_config_port_prep(phba);
3844 if (rc == -ERESTART) {
James Smarted957682007-06-17 19:56:37 -05003845 phba->link_state = LPFC_LINK_UNKNOWN;
dea31012005-04-17 16:05:31 -05003846 continue;
James Smart34b02dc2008-08-24 21:49:55 -04003847 } else if (rc)
dea31012005-04-17 16:05:31 -05003848 break;
James Smart2e0fef82007-06-17 19:56:36 -05003849 phba->link_state = LPFC_INIT_MBX_CMDS;
dea31012005-04-17 16:05:31 -05003850 lpfc_config_port(phba, pmb);
3851 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
James Smart34b02dc2008-08-24 21:49:55 -04003852 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
3853 LPFC_SLI3_HBQ_ENABLED |
3854 LPFC_SLI3_CRP_ENABLED |
James Smarte2a0a9d2008-12-04 22:40:02 -05003855 LPFC_SLI3_INB_ENABLED |
3856 LPFC_SLI3_BG_ENABLED);
James Smarted957682007-06-17 19:56:37 -05003857 if (rc != MBX_SUCCESS) {
dea31012005-04-17 16:05:31 -05003858 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04003859 "0442 Adapter failed to init, mbxCmd x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05003860 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
James Smart04c68492009-05-22 14:52:52 -04003861 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
James Smart2e0fef82007-06-17 19:56:36 -05003862 spin_lock_irq(&phba->hbalock);
James Smart04c68492009-05-22 14:52:52 -04003863 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05003864 spin_unlock_irq(&phba->hbalock);
3865 rc = -ENXIO;
James Smart04c68492009-05-22 14:52:52 -04003866 } else {
3867 /* Allow asynchronous mailbox command to go through */
3868 spin_lock_irq(&phba->hbalock);
3869 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
3870 spin_unlock_irq(&phba->hbalock);
James Smarted957682007-06-17 19:56:37 -05003871 done = 1;
James Smart04c68492009-05-22 14:52:52 -04003872 }
dea31012005-04-17 16:05:31 -05003873 }
James Smarted957682007-06-17 19:56:37 -05003874 if (!done) {
3875 rc = -EINVAL;
3876 goto do_prep_failed;
3877 }
James Smart04c68492009-05-22 14:52:52 -04003878 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
3879 if (!pmb->u.mb.un.varCfgPort.cMA) {
James Smart34b02dc2008-08-24 21:49:55 -04003880 rc = -ENXIO;
3881 goto do_prep_failed;
3882 }
James Smart04c68492009-05-22 14:52:52 -04003883 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
James Smart34b02dc2008-08-24 21:49:55 -04003884 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
James Smart04c68492009-05-22 14:52:52 -04003885 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
3886 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
3887 phba->max_vpi : phba->max_vports;
3888
James Smart34b02dc2008-08-24 21:49:55 -04003889 } else
3890 phba->max_vpi = 0;
James Smart04c68492009-05-22 14:52:52 -04003891 if (pmb->u.mb.un.varCfgPort.gdss)
3892 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
3893 if (pmb->u.mb.un.varCfgPort.gerbm)
James Smart34b02dc2008-08-24 21:49:55 -04003894 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
James Smart04c68492009-05-22 14:52:52 -04003895 if (pmb->u.mb.un.varCfgPort.gcrp)
James Smart34b02dc2008-08-24 21:49:55 -04003896 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
James Smart04c68492009-05-22 14:52:52 -04003897 if (pmb->u.mb.un.varCfgPort.ginb) {
James Smart34b02dc2008-08-24 21:49:55 -04003898 phba->sli3_options |= LPFC_SLI3_INB_ENABLED;
James Smart8f34f4c2008-12-04 22:39:23 -05003899 phba->hbq_get = phba->mbox->us.s3_inb_pgp.hbq_get;
James Smart34b02dc2008-08-24 21:49:55 -04003900 phba->port_gp = phba->mbox->us.s3_inb_pgp.port;
3901 phba->inb_ha_copy = &phba->mbox->us.s3_inb_pgp.ha_copy;
3902 phba->inb_counter = &phba->mbox->us.s3_inb_pgp.counter;
3903 phba->inb_last_counter =
3904 phba->mbox->us.s3_inb_pgp.counter;
3905 } else {
James Smart8f34f4c2008-12-04 22:39:23 -05003906 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
James Smart34b02dc2008-08-24 21:49:55 -04003907 phba->port_gp = phba->mbox->us.s3_pgp.port;
3908 phba->inb_ha_copy = NULL;
3909 phba->inb_counter = NULL;
3910 }
James Smarte2a0a9d2008-12-04 22:40:02 -05003911
3912 if (phba->cfg_enable_bg) {
James Smart04c68492009-05-22 14:52:52 -04003913 if (pmb->u.mb.un.varCfgPort.gbg)
James Smarte2a0a9d2008-12-04 22:40:02 -05003914 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
3915 else
3916 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3917 "0443 Adapter did not grant "
3918 "BlockGuard\n");
3919 }
James Smart34b02dc2008-08-24 21:49:55 -04003920 } else {
James Smart8f34f4c2008-12-04 22:39:23 -05003921 phba->hbq_get = NULL;
James Smart34b02dc2008-08-24 21:49:55 -04003922 phba->port_gp = phba->mbox->us.s2.port;
3923 phba->inb_ha_copy = NULL;
3924 phba->inb_counter = NULL;
James Smartd7c255b2008-08-24 21:50:00 -04003925 phba->max_vpi = 0;
James Smarted957682007-06-17 19:56:37 -05003926 }
James Smart92d7f7b2007-06-17 19:56:38 -05003927do_prep_failed:
James Smarted957682007-06-17 19:56:37 -05003928 mempool_free(pmb, phba->mbox_mem_pool);
3929 return rc;
3930}
3931
James Smarte59058c2008-08-24 21:49:00 -04003932
3933/**
James Smart3621a712009-04-06 18:47:14 -04003934 * lpfc_sli_hba_setup - SLI intialization function
James Smarte59058c2008-08-24 21:49:00 -04003935 * @phba: Pointer to HBA context object.
3936 *
3937 * This function is the main SLI intialization function. This function
3938 * is called by the HBA intialization code, HBA reset code and HBA
3939 * error attention handler code. Caller is not required to hold any
3940 * locks. This function issues config_port mailbox command to configure
3941 * the SLI, setup iocb rings and HBQ rings. In the end the function
3942 * calls the config_port_post function to issue init_link mailbox
3943 * command and to start the discovery. The function will return zero
3944 * if successful, else it will return negative error code.
3945 **/
James Smarted957682007-06-17 19:56:37 -05003946int
3947lpfc_sli_hba_setup(struct lpfc_hba *phba)
3948{
3949 uint32_t rc;
James Smart92d7f7b2007-06-17 19:56:38 -05003950 int mode = 3;
James Smarted957682007-06-17 19:56:37 -05003951
3952 switch (lpfc_sli_mode) {
3953 case 2:
James Smart78b2d852007-08-02 11:10:21 -04003954 if (phba->cfg_enable_npiv) {
James Smart92d7f7b2007-06-17 19:56:38 -05003955 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04003956 "1824 NPIV enabled: Override lpfc_sli_mode "
James Smart92d7f7b2007-06-17 19:56:38 -05003957 "parameter (%d) to auto (0).\n",
James Smarte8b62012007-08-02 11:10:09 -04003958 lpfc_sli_mode);
James Smart92d7f7b2007-06-17 19:56:38 -05003959 break;
3960 }
James Smarted957682007-06-17 19:56:37 -05003961 mode = 2;
3962 break;
3963 case 0:
3964 case 3:
3965 break;
3966 default:
James Smart92d7f7b2007-06-17 19:56:38 -05003967 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04003968 "1819 Unrecognized lpfc_sli_mode "
3969 "parameter: %d.\n", lpfc_sli_mode);
James Smarted957682007-06-17 19:56:37 -05003970
3971 break;
3972 }
3973
James Smart93996272008-08-24 21:50:30 -04003974 rc = lpfc_sli_config_port(phba, mode);
3975
James Smarted957682007-06-17 19:56:37 -05003976 if (rc && lpfc_sli_mode == 3)
James Smart92d7f7b2007-06-17 19:56:38 -05003977 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04003978 "1820 Unable to select SLI-3. "
3979 "Not supported by adapter.\n");
James Smarted957682007-06-17 19:56:37 -05003980 if (rc && mode != 2)
James Smart93996272008-08-24 21:50:30 -04003981 rc = lpfc_sli_config_port(phba, 2);
James Smarted957682007-06-17 19:56:37 -05003982 if (rc)
dea31012005-04-17 16:05:31 -05003983 goto lpfc_sli_hba_setup_error;
3984
James Smart0d878412009-10-02 15:16:56 -04003985 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
3986 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
3987 rc = pci_enable_pcie_error_reporting(phba->pcidev);
3988 if (!rc) {
3989 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3990 "2709 This device supports "
3991 "Advanced Error Reporting (AER)\n");
3992 spin_lock_irq(&phba->hbalock);
3993 phba->hba_flag |= HBA_AER_ENABLED;
3994 spin_unlock_irq(&phba->hbalock);
3995 } else {
3996 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3997 "2708 This device does not support "
3998 "Advanced Error Reporting (AER)\n");
3999 phba->cfg_aer_support = 0;
4000 }
4001 }
4002
James Smarted957682007-06-17 19:56:37 -05004003 if (phba->sli_rev == 3) {
4004 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4005 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
James Smarted957682007-06-17 19:56:37 -05004006 } else {
4007 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4008 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
James Smart92d7f7b2007-06-17 19:56:38 -05004009 phba->sli3_options = 0;
James Smarted957682007-06-17 19:56:37 -05004010 }
4011
4012 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004013 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4014 phba->sli_rev, phba->max_vpi);
James Smarted957682007-06-17 19:56:37 -05004015 rc = lpfc_sli_ring_map(phba);
dea31012005-04-17 16:05:31 -05004016
4017 if (rc)
4018 goto lpfc_sli_hba_setup_error;
4019
James Smart93996272008-08-24 21:50:30 -04004020 /* Init HBQs */
James Smarted957682007-06-17 19:56:37 -05004021 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4022 rc = lpfc_sli_hbq_setup(phba);
4023 if (rc)
4024 goto lpfc_sli_hba_setup_error;
4025 }
James Smart04c68492009-05-22 14:52:52 -04004026 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004027 phba->sli.sli_flag |= LPFC_PROCESS_LA;
James Smart04c68492009-05-22 14:52:52 -04004028 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004029
4030 rc = lpfc_config_port_post(phba);
4031 if (rc)
4032 goto lpfc_sli_hba_setup_error;
4033
James Smarted957682007-06-17 19:56:37 -05004034 return rc;
4035
James Smart92d7f7b2007-06-17 19:56:38 -05004036lpfc_sli_hba_setup_error:
James Smart2e0fef82007-06-17 19:56:36 -05004037 phba->link_state = LPFC_HBA_ERROR;
James Smarted957682007-06-17 19:56:37 -05004038 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004039 "0445 Firmware initialization failed\n");
dea31012005-04-17 16:05:31 -05004040 return rc;
4041}
4042
James Smartda0436e2009-05-22 14:51:39 -04004043/**
4044 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4045 * @phba: Pointer to HBA context object.
4046 * @mboxq: mailbox pointer.
4047 * This function issue a dump mailbox command to read config region
4048 * 23 and parse the records in the region and populate driver
4049 * data structure.
4050 **/
4051static int
4052lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba,
4053 LPFC_MBOXQ_t *mboxq)
4054{
4055 struct lpfc_dmabuf *mp;
4056 struct lpfc_mqe *mqe;
4057 uint32_t data_length;
4058 int rc;
4059
4060 /* Program the default value of vlan_id and fc_map */
4061 phba->valid_vlan = 0;
4062 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4063 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4064 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4065
4066 mqe = &mboxq->u.mqe;
4067 if (lpfc_dump_fcoe_param(phba, mboxq))
4068 return -ENOMEM;
4069
4070 mp = (struct lpfc_dmabuf *) mboxq->context1;
4071 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4072
4073 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4074 "(%d):2571 Mailbox cmd x%x Status x%x "
4075 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4076 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4077 "CQ: x%x x%x x%x x%x\n",
4078 mboxq->vport ? mboxq->vport->vpi : 0,
4079 bf_get(lpfc_mqe_command, mqe),
4080 bf_get(lpfc_mqe_status, mqe),
4081 mqe->un.mb_words[0], mqe->un.mb_words[1],
4082 mqe->un.mb_words[2], mqe->un.mb_words[3],
4083 mqe->un.mb_words[4], mqe->un.mb_words[5],
4084 mqe->un.mb_words[6], mqe->un.mb_words[7],
4085 mqe->un.mb_words[8], mqe->un.mb_words[9],
4086 mqe->un.mb_words[10], mqe->un.mb_words[11],
4087 mqe->un.mb_words[12], mqe->un.mb_words[13],
4088 mqe->un.mb_words[14], mqe->un.mb_words[15],
4089 mqe->un.mb_words[16], mqe->un.mb_words[50],
4090 mboxq->mcqe.word0,
4091 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4092 mboxq->mcqe.trailer);
4093
4094 if (rc) {
4095 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4096 kfree(mp);
4097 return -EIO;
4098 }
4099 data_length = mqe->un.mb_words[5];
James Smarta0c87cb2009-07-19 10:01:10 -04004100 if (data_length > DMP_RGN23_SIZE) {
James Smartd11e31d2009-06-10 17:23:06 -04004101 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4102 kfree(mp);
James Smartda0436e2009-05-22 14:51:39 -04004103 return -EIO;
James Smartd11e31d2009-06-10 17:23:06 -04004104 }
James Smartda0436e2009-05-22 14:51:39 -04004105
4106 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4107 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4108 kfree(mp);
4109 return 0;
4110}
4111
4112/**
4113 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4114 * @phba: pointer to lpfc hba data structure.
4115 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4116 * @vpd: pointer to the memory to hold resulting port vpd data.
4117 * @vpd_size: On input, the number of bytes allocated to @vpd.
4118 * On output, the number of data bytes in @vpd.
4119 *
4120 * This routine executes a READ_REV SLI4 mailbox command. In
4121 * addition, this routine gets the port vpd data.
4122 *
4123 * Return codes
André Goddard Rosaaf901ca2009-11-14 13:09:05 -02004124 * 0 - successful
James Smartda0436e2009-05-22 14:51:39 -04004125 * ENOMEM - could not allocated memory.
4126 **/
4127static int
4128lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4129 uint8_t *vpd, uint32_t *vpd_size)
4130{
4131 int rc = 0;
4132 uint32_t dma_size;
4133 struct lpfc_dmabuf *dmabuf;
4134 struct lpfc_mqe *mqe;
4135
4136 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4137 if (!dmabuf)
4138 return -ENOMEM;
4139
4140 /*
4141 * Get a DMA buffer for the vpd data resulting from the READ_REV
4142 * mailbox command.
4143 */
4144 dma_size = *vpd_size;
4145 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4146 dma_size,
4147 &dmabuf->phys,
4148 GFP_KERNEL);
4149 if (!dmabuf->virt) {
4150 kfree(dmabuf);
4151 return -ENOMEM;
4152 }
4153 memset(dmabuf->virt, 0, dma_size);
4154
4155 /*
4156 * The SLI4 implementation of READ_REV conflicts at word1,
4157 * bits 31:16 and SLI4 adds vpd functionality not present
4158 * in SLI3. This code corrects the conflicts.
4159 */
4160 lpfc_read_rev(phba, mboxq);
4161 mqe = &mboxq->u.mqe;
4162 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4163 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4164 mqe->un.read_rev.word1 &= 0x0000FFFF;
4165 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4166 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4167
4168 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4169 if (rc) {
4170 dma_free_coherent(&phba->pcidev->dev, dma_size,
4171 dmabuf->virt, dmabuf->phys);
James Smartdef9c7a2009-12-21 17:02:28 -05004172 kfree(dmabuf);
James Smartda0436e2009-05-22 14:51:39 -04004173 return -EIO;
4174 }
4175
James Smartda0436e2009-05-22 14:51:39 -04004176 /*
4177 * The available vpd length cannot be bigger than the
4178 * DMA buffer passed to the port. Catch the less than
4179 * case and update the caller's size.
4180 */
4181 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4182 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4183
4184 lpfc_sli_pcimem_bcopy(dmabuf->virt, vpd, *vpd_size);
4185 dma_free_coherent(&phba->pcidev->dev, dma_size,
4186 dmabuf->virt, dmabuf->phys);
4187 kfree(dmabuf);
4188 return 0;
4189}
4190
4191/**
4192 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4193 * @phba: pointer to lpfc hba data structure.
4194 *
4195 * This routine is called to explicitly arm the SLI4 device's completion and
4196 * event queues
4197 **/
4198static void
4199lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
4200{
4201 uint8_t fcp_eqidx;
4202
4203 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
4204 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
James Smartda0436e2009-05-22 14:51:39 -04004205 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
4206 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
4207 LPFC_QUEUE_REARM);
4208 lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM);
4209 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
4210 lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx],
4211 LPFC_QUEUE_REARM);
4212}
4213
4214/**
4215 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
4216 * @phba: Pointer to HBA context object.
4217 *
4218 * This function is the main SLI4 device intialization PCI function. This
4219 * function is called by the HBA intialization code, HBA reset code and
4220 * HBA error attention handler code. Caller is not required to hold any
4221 * locks.
4222 **/
4223int
4224lpfc_sli4_hba_setup(struct lpfc_hba *phba)
4225{
4226 int rc;
4227 LPFC_MBOXQ_t *mboxq;
4228 struct lpfc_mqe *mqe;
4229 uint8_t *vpd;
4230 uint32_t vpd_size;
4231 uint32_t ftr_rsp = 0;
4232 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
4233 struct lpfc_vport *vport = phba->pport;
4234 struct lpfc_dmabuf *mp;
4235
4236 /* Perform a PCI function reset to start from clean */
4237 rc = lpfc_pci_function_reset(phba);
4238 if (unlikely(rc))
4239 return -ENODEV;
4240
4241 /* Check the HBA Host Status Register for readyness */
4242 rc = lpfc_sli4_post_status_check(phba);
4243 if (unlikely(rc))
4244 return -ENODEV;
4245 else {
4246 spin_lock_irq(&phba->hbalock);
4247 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
4248 spin_unlock_irq(&phba->hbalock);
4249 }
4250
4251 /*
4252 * Allocate a single mailbox container for initializing the
4253 * port.
4254 */
4255 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4256 if (!mboxq)
4257 return -ENOMEM;
4258
4259 /*
4260 * Continue initialization with default values even if driver failed
4261 * to read FCoE param config regions
4262 */
4263 if (lpfc_sli4_read_fcoe_params(phba, mboxq))
4264 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
James Smarte4e74272009-07-19 10:01:38 -04004265 "2570 Failed to read FCoE parameters\n");
James Smartda0436e2009-05-22 14:51:39 -04004266
4267 /* Issue READ_REV to collect vpd and FW information. */
4268 vpd_size = PAGE_SIZE;
4269 vpd = kzalloc(vpd_size, GFP_KERNEL);
4270 if (!vpd) {
4271 rc = -ENOMEM;
4272 goto out_free_mbox;
4273 }
4274
4275 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
4276 if (unlikely(rc))
4277 goto out_free_vpd;
4278
4279 mqe = &mboxq->u.mqe;
James Smartf1126682009-06-10 17:22:44 -04004280 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
4281 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
4282 phba->hba_flag |= HBA_FCOE_SUPPORT;
James Smart45ed1192009-10-02 15:17:02 -04004283
4284 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
4285 LPFC_DCBX_CEE_MODE)
4286 phba->hba_flag |= HBA_FIP_SUPPORT;
4287 else
4288 phba->hba_flag &= ~HBA_FIP_SUPPORT;
4289
James Smartf1126682009-06-10 17:22:44 -04004290 if (phba->sli_rev != LPFC_SLI_REV4 ||
4291 !(phba->hba_flag & HBA_FCOE_SUPPORT)) {
James Smartda0436e2009-05-22 14:51:39 -04004292 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4293 "0376 READ_REV Error. SLI Level %d "
4294 "FCoE enabled %d\n",
James Smartf1126682009-06-10 17:22:44 -04004295 phba->sli_rev, phba->hba_flag & HBA_FCOE_SUPPORT);
James Smartda0436e2009-05-22 14:51:39 -04004296 rc = -EIO;
4297 goto out_free_vpd;
4298 }
James Smartda0436e2009-05-22 14:51:39 -04004299 /*
4300 * Evaluate the read rev and vpd data. Populate the driver
4301 * state with the results. If this routine fails, the failure
4302 * is not fatal as the driver will use generic values.
4303 */
4304 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
4305 if (unlikely(!rc)) {
4306 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4307 "0377 Error %d parsing vpd. "
4308 "Using defaults.\n", rc);
4309 rc = 0;
4310 }
4311
James Smartf1126682009-06-10 17:22:44 -04004312 /* Save information as VPD data */
4313 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
4314 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
4315 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
4316 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
4317 &mqe->un.read_rev);
4318 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
4319 &mqe->un.read_rev);
4320 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
4321 &mqe->un.read_rev);
4322 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
4323 &mqe->un.read_rev);
4324 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
4325 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
4326 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
4327 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
4328 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
4329 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
4330 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4331 "(%d):0380 READ_REV Status x%x "
4332 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
4333 mboxq->vport ? mboxq->vport->vpi : 0,
4334 bf_get(lpfc_mqe_status, mqe),
4335 phba->vpd.rev.opFwName,
4336 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
4337 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
James Smartda0436e2009-05-22 14:51:39 -04004338
4339 /*
4340 * Discover the port's supported feature set and match it against the
4341 * hosts requests.
4342 */
4343 lpfc_request_features(phba, mboxq);
4344 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4345 if (unlikely(rc)) {
4346 rc = -EIO;
4347 goto out_free_vpd;
4348 }
4349
4350 /*
4351 * The port must support FCP initiator mode as this is the
4352 * only mode running in the host.
4353 */
4354 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
4355 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4356 "0378 No support for fcpi mode.\n");
4357 ftr_rsp++;
4358 }
4359
4360 /*
4361 * If the port cannot support the host's requested features
4362 * then turn off the global config parameters to disable the
4363 * feature in the driver. This is not a fatal error.
4364 */
4365 if ((phba->cfg_enable_bg) &&
4366 !(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
4367 ftr_rsp++;
4368
4369 if (phba->max_vpi && phba->cfg_enable_npiv &&
4370 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
4371 ftr_rsp++;
4372
4373 if (ftr_rsp) {
4374 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4375 "0379 Feature Mismatch Data: x%08x %08x "
4376 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
4377 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
4378 phba->cfg_enable_npiv, phba->max_vpi);
4379 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
4380 phba->cfg_enable_bg = 0;
4381 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
4382 phba->cfg_enable_npiv = 0;
4383 }
4384
4385 /* These SLI3 features are assumed in SLI4 */
4386 spin_lock_irq(&phba->hbalock);
4387 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
4388 spin_unlock_irq(&phba->hbalock);
4389
4390 /* Read the port's service parameters. */
4391 lpfc_read_sparam(phba, mboxq, vport->vpi);
4392 mboxq->vport = vport;
4393 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4394 mp = (struct lpfc_dmabuf *) mboxq->context1;
4395 if (rc == MBX_SUCCESS) {
4396 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
4397 rc = 0;
4398 }
4399
4400 /*
4401 * This memory was allocated by the lpfc_read_sparam routine. Release
4402 * it to the mbuf pool.
4403 */
4404 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4405 kfree(mp);
4406 mboxq->context1 = NULL;
4407 if (unlikely(rc)) {
4408 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4409 "0382 READ_SPARAM command failed "
4410 "status %d, mbxStatus x%x\n",
4411 rc, bf_get(lpfc_mqe_status, mqe));
4412 phba->link_state = LPFC_HBA_ERROR;
4413 rc = -EIO;
4414 goto out_free_vpd;
4415 }
4416
4417 if (phba->cfg_soft_wwnn)
4418 u64_to_wwn(phba->cfg_soft_wwnn,
4419 vport->fc_sparam.nodeName.u.wwn);
4420 if (phba->cfg_soft_wwpn)
4421 u64_to_wwn(phba->cfg_soft_wwpn,
4422 vport->fc_sparam.portName.u.wwn);
4423 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
4424 sizeof(struct lpfc_name));
4425 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
4426 sizeof(struct lpfc_name));
4427
4428 /* Update the fc_host data structures with new wwn. */
4429 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4430 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4431
4432 /* Register SGL pool to the device using non-embedded mailbox command */
4433 rc = lpfc_sli4_post_sgl_list(phba);
4434 if (unlikely(rc)) {
4435 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smart6a9c52c2009-10-02 15:16:51 -04004436 "0582 Error %d during sgl post operation\n",
4437 rc);
James Smartda0436e2009-05-22 14:51:39 -04004438 rc = -ENODEV;
4439 goto out_free_vpd;
4440 }
4441
4442 /* Register SCSI SGL pool to the device */
4443 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
4444 if (unlikely(rc)) {
4445 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
James Smart6a9c52c2009-10-02 15:16:51 -04004446 "0383 Error %d during scsi sgl post "
4447 "operation\n", rc);
James Smartda0436e2009-05-22 14:51:39 -04004448 /* Some Scsi buffers were moved to the abort scsi list */
4449 /* A pci function reset will repost them */
4450 rc = -ENODEV;
4451 goto out_free_vpd;
4452 }
4453
4454 /* Post the rpi header region to the device. */
4455 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
4456 if (unlikely(rc)) {
4457 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4458 "0393 Error %d during rpi post operation\n",
4459 rc);
4460 rc = -ENODEV;
4461 goto out_free_vpd;
4462 }
James Smartda0436e2009-05-22 14:51:39 -04004463
4464 /* Set up all the queues to the device */
4465 rc = lpfc_sli4_queue_setup(phba);
4466 if (unlikely(rc)) {
4467 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4468 "0381 Error %d during queue setup.\n ", rc);
4469 goto out_stop_timers;
4470 }
4471
4472 /* Arm the CQs and then EQs on device */
4473 lpfc_sli4_arm_cqeq_intr(phba);
4474
4475 /* Indicate device interrupt mode */
4476 phba->sli4_hba.intr_enable = 1;
4477
4478 /* Allow asynchronous mailbox command to go through */
4479 spin_lock_irq(&phba->hbalock);
4480 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4481 spin_unlock_irq(&phba->hbalock);
4482
4483 /* Post receive buffers to the device */
4484 lpfc_sli4_rb_setup(phba);
4485
4486 /* Start the ELS watchdog timer */
James Smart8fa38512009-07-19 10:01:03 -04004487 mod_timer(&vport->els_tmofunc,
4488 jiffies + HZ * (phba->fc_ratov * 2));
James Smartda0436e2009-05-22 14:51:39 -04004489
4490 /* Start heart beat timer */
4491 mod_timer(&phba->hb_tmofunc,
4492 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
4493 phba->hb_outstanding = 0;
4494 phba->last_completion_time = jiffies;
4495
4496 /* Start error attention (ERATT) polling timer */
4497 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
4498
4499 /*
4500 * The port is ready, set the host's link state to LINK_DOWN
4501 * in preparation for link interrupts.
4502 */
4503 lpfc_init_link(phba, mboxq, phba->cfg_topology, phba->cfg_link_speed);
4504 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4505 lpfc_set_loopback_flag(phba);
4506 /* Change driver state to LPFC_LINK_DOWN right before init link */
4507 spin_lock_irq(&phba->hbalock);
4508 phba->link_state = LPFC_LINK_DOWN;
4509 spin_unlock_irq(&phba->hbalock);
4510 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
4511 if (unlikely(rc != MBX_NOT_FINISHED)) {
4512 kfree(vpd);
4513 return 0;
4514 } else
4515 rc = -EIO;
4516
4517 /* Unset all the queues set up in this routine when error out */
4518 if (rc)
4519 lpfc_sli4_queue_unset(phba);
4520
4521out_stop_timers:
4522 if (rc)
4523 lpfc_stop_hba_timers(phba);
4524out_free_vpd:
4525 kfree(vpd);
4526out_free_mbox:
4527 mempool_free(mboxq, phba->mbox_mem_pool);
4528 return rc;
4529}
James Smarte59058c2008-08-24 21:49:00 -04004530
4531/**
James Smart3621a712009-04-06 18:47:14 -04004532 * lpfc_mbox_timeout - Timeout call back function for mbox timer
James Smarte59058c2008-08-24 21:49:00 -04004533 * @ptr: context object - pointer to hba structure.
dea31012005-04-17 16:05:31 -05004534 *
James Smarte59058c2008-08-24 21:49:00 -04004535 * This is the callback function for mailbox timer. The mailbox
4536 * timer is armed when a new mailbox command is issued and the timer
4537 * is deleted when the mailbox complete. The function is called by
4538 * the kernel timer code when a mailbox does not complete within
4539 * expected time. This function wakes up the worker thread to
4540 * process the mailbox timeout and returns. All the processing is
4541 * done by the worker thread function lpfc_mbox_timeout_handler.
4542 **/
dea31012005-04-17 16:05:31 -05004543void
4544lpfc_mbox_timeout(unsigned long ptr)
4545{
James Smart92d7f7b2007-06-17 19:56:38 -05004546 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
dea31012005-04-17 16:05:31 -05004547 unsigned long iflag;
James Smart2e0fef82007-06-17 19:56:36 -05004548 uint32_t tmo_posted;
dea31012005-04-17 16:05:31 -05004549
James Smart2e0fef82007-06-17 19:56:36 -05004550 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
James Smart92d7f7b2007-06-17 19:56:38 -05004551 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
James Smart2e0fef82007-06-17 19:56:36 -05004552 if (!tmo_posted)
4553 phba->pport->work_port_events |= WORKER_MBOX_TMO;
4554 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
4555
James Smart5e9d9b82008-06-14 22:52:53 -04004556 if (!tmo_posted)
4557 lpfc_worker_wake_up(phba);
4558 return;
dea31012005-04-17 16:05:31 -05004559}
4560
James Smarte59058c2008-08-24 21:49:00 -04004561
4562/**
James Smart3621a712009-04-06 18:47:14 -04004563 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
James Smarte59058c2008-08-24 21:49:00 -04004564 * @phba: Pointer to HBA context object.
4565 *
4566 * This function is called from worker thread when a mailbox command times out.
4567 * The caller is not required to hold any locks. This function will reset the
4568 * HBA and recover all the pending commands.
4569 **/
dea31012005-04-17 16:05:31 -05004570void
4571lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
4572{
James Smart2e0fef82007-06-17 19:56:36 -05004573 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
James Smart04c68492009-05-22 14:52:52 -04004574 MAILBOX_t *mb = &pmbox->u.mb;
James Smart1dcb58e2007-04-25 09:51:30 -04004575 struct lpfc_sli *psli = &phba->sli;
4576 struct lpfc_sli_ring *pring;
dea31012005-04-17 16:05:31 -05004577
James Smarta257bf92009-04-06 18:48:10 -04004578 /* Check the pmbox pointer first. There is a race condition
4579 * between the mbox timeout handler getting executed in the
4580 * worklist and the mailbox actually completing. When this
4581 * race condition occurs, the mbox_active will be NULL.
4582 */
4583 spin_lock_irq(&phba->hbalock);
4584 if (pmbox == NULL) {
4585 lpfc_printf_log(phba, KERN_WARNING,
4586 LOG_MBOX | LOG_SLI,
4587 "0353 Active Mailbox cleared - mailbox timeout "
4588 "exiting\n");
4589 spin_unlock_irq(&phba->hbalock);
4590 return;
4591 }
4592
dea31012005-04-17 16:05:31 -05004593 /* Mbox cmd <mbxCommand> timeout */
James Smarted957682007-06-17 19:56:37 -05004594 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04004595 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
James Smart92d7f7b2007-06-17 19:56:38 -05004596 mb->mbxCommand,
4597 phba->pport->port_state,
4598 phba->sli.sli_flag,
4599 phba->sli.mbox_active);
James Smarta257bf92009-04-06 18:48:10 -04004600 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004601
James Smart1dcb58e2007-04-25 09:51:30 -04004602 /* Setting state unknown so lpfc_sli_abort_iocb_ring
4603 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
4604 * it to fail all oustanding SCSI IO.
4605 */
James Smart2e0fef82007-06-17 19:56:36 -05004606 spin_lock_irq(&phba->pport->work_port_lock);
4607 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
4608 spin_unlock_irq(&phba->pport->work_port_lock);
4609 spin_lock_irq(&phba->hbalock);
4610 phba->link_state = LPFC_LINK_UNKNOWN;
James Smartf4b4c682009-05-22 14:53:12 -04004611 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05004612 spin_unlock_irq(&phba->hbalock);
James Smart1dcb58e2007-04-25 09:51:30 -04004613
4614 pring = &psli->ring[psli->fcp_ring];
4615 lpfc_sli_abort_iocb_ring(phba, pring);
4616
4617 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smart76bb24e2007-10-27 13:38:00 -04004618 "0345 Resetting board due to mailbox timeout\n");
James Smart3772a992009-05-22 14:50:54 -04004619
4620 /* Reset the HBA device */
4621 lpfc_reset_hba(phba);
dea31012005-04-17 16:05:31 -05004622}
4623
James Smarte59058c2008-08-24 21:49:00 -04004624/**
James Smart3772a992009-05-22 14:50:54 -04004625 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
James Smarte59058c2008-08-24 21:49:00 -04004626 * @phba: Pointer to HBA context object.
4627 * @pmbox: Pointer to mailbox object.
4628 * @flag: Flag indicating how the mailbox need to be processed.
4629 *
4630 * This function is called by discovery code and HBA management code
James Smart3772a992009-05-22 14:50:54 -04004631 * to submit a mailbox command to firmware with SLI-3 interface spec. This
4632 * function gets the hbalock to protect the data structures.
James Smarte59058c2008-08-24 21:49:00 -04004633 * The mailbox command can be submitted in polling mode, in which case
4634 * this function will wait in a polling loop for the completion of the
4635 * mailbox.
4636 * If the mailbox is submitted in no_wait mode (not polling) the
4637 * function will submit the command and returns immediately without waiting
4638 * for the mailbox completion. The no_wait is supported only when HBA
4639 * is in SLI2/SLI3 mode - interrupts are enabled.
4640 * The SLI interface allows only one mailbox pending at a time. If the
4641 * mailbox is issued in polling mode and there is already a mailbox
4642 * pending, then the function will return an error. If the mailbox is issued
4643 * in NO_WAIT mode and there is a mailbox pending already, the function
4644 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
4645 * The sli layer owns the mailbox object until the completion of mailbox
4646 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
4647 * return codes the caller owns the mailbox command after the return of
4648 * the function.
4649 **/
James Smart3772a992009-05-22 14:50:54 -04004650static int
4651lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
4652 uint32_t flag)
dea31012005-04-17 16:05:31 -05004653{
dea31012005-04-17 16:05:31 -05004654 MAILBOX_t *mb;
James Smart2e0fef82007-06-17 19:56:36 -05004655 struct lpfc_sli *psli = &phba->sli;
dea31012005-04-17 16:05:31 -05004656 uint32_t status, evtctr;
4657 uint32_t ha_copy;
4658 int i;
James Smart09372822008-01-11 01:52:54 -05004659 unsigned long timeout;
dea31012005-04-17 16:05:31 -05004660 unsigned long drvr_flag = 0;
James Smart34b02dc2008-08-24 21:49:55 -04004661 uint32_t word0, ldata;
dea31012005-04-17 16:05:31 -05004662 void __iomem *to_slim;
James Smart58da1ff2008-04-07 10:15:56 -04004663 int processing_queue = 0;
4664
4665 spin_lock_irqsave(&phba->hbalock, drvr_flag);
4666 if (!pmbox) {
James Smart8568a4d2009-07-19 10:01:16 -04004667 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart58da1ff2008-04-07 10:15:56 -04004668 /* processing mbox queue from intr_handler */
James Smart3772a992009-05-22 14:50:54 -04004669 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
4670 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4671 return MBX_SUCCESS;
4672 }
James Smart58da1ff2008-04-07 10:15:56 -04004673 processing_queue = 1;
James Smart58da1ff2008-04-07 10:15:56 -04004674 pmbox = lpfc_mbox_get(phba);
4675 if (!pmbox) {
4676 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4677 return MBX_SUCCESS;
4678 }
4679 }
dea31012005-04-17 16:05:31 -05004680
James Smarted957682007-06-17 19:56:37 -05004681 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
James Smart92d7f7b2007-06-17 19:56:38 -05004682 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
James Smarted957682007-06-17 19:56:37 -05004683 if(!pmbox->vport) {
James Smart58da1ff2008-04-07 10:15:56 -04004684 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
James Smarted957682007-06-17 19:56:37 -05004685 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05004686 LOG_MBOX | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004687 "1806 Mbox x%x failed. No vport\n",
James Smart3772a992009-05-22 14:50:54 -04004688 pmbox->u.mb.mbxCommand);
James Smarted957682007-06-17 19:56:37 -05004689 dump_stack();
James Smart58da1ff2008-04-07 10:15:56 -04004690 goto out_not_finished;
James Smarted957682007-06-17 19:56:37 -05004691 }
4692 }
4693
Linas Vepstas8d63f372007-02-14 14:28:36 -06004694 /* If the PCI channel is in offline state, do not post mbox. */
James Smart58da1ff2008-04-07 10:15:56 -04004695 if (unlikely(pci_channel_offline(phba->pcidev))) {
4696 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4697 goto out_not_finished;
4698 }
Linas Vepstas8d63f372007-02-14 14:28:36 -06004699
James Smarta257bf92009-04-06 18:48:10 -04004700 /* If HBA has a deferred error attention, fail the iocb. */
4701 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
4702 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4703 goto out_not_finished;
4704 }
4705
dea31012005-04-17 16:05:31 -05004706 psli = &phba->sli;
James Smart92d7f7b2007-06-17 19:56:38 -05004707
James Smart3772a992009-05-22 14:50:54 -04004708 mb = &pmbox->u.mb;
dea31012005-04-17 16:05:31 -05004709 status = MBX_SUCCESS;
4710
James Smart2e0fef82007-06-17 19:56:36 -05004711 if (phba->link_state == LPFC_HBA_ERROR) {
4712 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05004713
4714 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04004715 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4716 "(%d):0311 Mailbox command x%x cannot "
4717 "issue Data: x%x x%x\n",
4718 pmbox->vport ? pmbox->vport->vpi : 0,
4719 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04004720 goto out_not_finished;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004721 }
4722
James Smart92908312006-03-07 15:04:13 -05004723 if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT &&
4724 !(readl(phba->HCregaddr) & HC_MBINT_ENA)) {
James Smart2e0fef82007-06-17 19:56:36 -05004725 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
James Smart3772a992009-05-22 14:50:54 -04004726 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4727 "(%d):2528 Mailbox command x%x cannot "
4728 "issue Data: x%x x%x\n",
4729 pmbox->vport ? pmbox->vport->vpi : 0,
4730 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04004731 goto out_not_finished;
James Smart92908312006-03-07 15:04:13 -05004732 }
4733
dea31012005-04-17 16:05:31 -05004734 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
4735 /* Polling for a mbox command when another one is already active
4736 * is not allowed in SLI. Also, the driver must have established
4737 * SLI2 mode to queue and process multiple mbox commands.
4738 */
4739
4740 if (flag & MBX_POLL) {
James Smart2e0fef82007-06-17 19:56:36 -05004741 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05004742
4743 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04004744 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4745 "(%d):2529 Mailbox command x%x "
4746 "cannot issue Data: x%x x%x\n",
4747 pmbox->vport ? pmbox->vport->vpi : 0,
4748 pmbox->u.mb.mbxCommand,
4749 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04004750 goto out_not_finished;
dea31012005-04-17 16:05:31 -05004751 }
4752
James Smart3772a992009-05-22 14:50:54 -04004753 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
James Smart2e0fef82007-06-17 19:56:36 -05004754 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05004755 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04004756 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4757 "(%d):2530 Mailbox command x%x "
4758 "cannot issue Data: x%x x%x\n",
4759 pmbox->vport ? pmbox->vport->vpi : 0,
4760 pmbox->u.mb.mbxCommand,
4761 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04004762 goto out_not_finished;
dea31012005-04-17 16:05:31 -05004763 }
4764
dea31012005-04-17 16:05:31 -05004765 /* Another mailbox command is still being processed, queue this
4766 * command to be processed later.
4767 */
4768 lpfc_mbox_put(phba, pmbox);
4769
4770 /* Mbox cmd issue - BUSY */
James Smarted957682007-06-17 19:56:37 -05004771 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04004772 "(%d):0308 Mbox cmd issue - BUSY Data: "
James Smart92d7f7b2007-06-17 19:56:38 -05004773 "x%x x%x x%x x%x\n",
James Smart92d7f7b2007-06-17 19:56:38 -05004774 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
4775 mb->mbxCommand, phba->pport->port_state,
4776 psli->sli_flag, flag);
dea31012005-04-17 16:05:31 -05004777
4778 psli->slistat.mbox_busy++;
James Smart2e0fef82007-06-17 19:56:36 -05004779 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05004780
James Smart858c9f62007-06-17 19:56:39 -05004781 if (pmbox->vport) {
4782 lpfc_debugfs_disc_trc(pmbox->vport,
4783 LPFC_DISC_TRC_MBOX_VPORT,
4784 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
4785 (uint32_t)mb->mbxCommand,
4786 mb->un.varWords[0], mb->un.varWords[1]);
4787 }
4788 else {
4789 lpfc_debugfs_disc_trc(phba->pport,
4790 LPFC_DISC_TRC_MBOX,
4791 "MBOX Bsy: cmd:x%x mb:x%x x%x",
4792 (uint32_t)mb->mbxCommand,
4793 mb->un.varWords[0], mb->un.varWords[1]);
4794 }
4795
James Smart2e0fef82007-06-17 19:56:36 -05004796 return MBX_BUSY;
dea31012005-04-17 16:05:31 -05004797 }
4798
dea31012005-04-17 16:05:31 -05004799 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4800
4801 /* If we are not polling, we MUST be in SLI2 mode */
4802 if (flag != MBX_POLL) {
James Smart3772a992009-05-22 14:50:54 -04004803 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
Jamie Wellnitz41415862006-02-28 19:25:27 -05004804 (mb->mbxCommand != MBX_KILL_BOARD)) {
dea31012005-04-17 16:05:31 -05004805 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05004806 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05004807 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04004808 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4809 "(%d):2531 Mailbox command x%x "
4810 "cannot issue Data: x%x x%x\n",
4811 pmbox->vport ? pmbox->vport->vpi : 0,
4812 pmbox->u.mb.mbxCommand,
4813 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04004814 goto out_not_finished;
dea31012005-04-17 16:05:31 -05004815 }
4816 /* timeout active mbox command */
James Smarta309a6b2006-08-01 07:33:43 -04004817 mod_timer(&psli->mbox_tmo, (jiffies +
4818 (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand))));
dea31012005-04-17 16:05:31 -05004819 }
4820
4821 /* Mailbox cmd <cmd> issue */
James Smarted957682007-06-17 19:56:37 -05004822 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04004823 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05004824 "x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04004825 pmbox->vport ? pmbox->vport->vpi : 0,
James Smart92d7f7b2007-06-17 19:56:38 -05004826 mb->mbxCommand, phba->pport->port_state,
4827 psli->sli_flag, flag);
dea31012005-04-17 16:05:31 -05004828
James Smart858c9f62007-06-17 19:56:39 -05004829 if (mb->mbxCommand != MBX_HEARTBEAT) {
4830 if (pmbox->vport) {
4831 lpfc_debugfs_disc_trc(pmbox->vport,
4832 LPFC_DISC_TRC_MBOX_VPORT,
4833 "MBOX Send vport: cmd:x%x mb:x%x x%x",
4834 (uint32_t)mb->mbxCommand,
4835 mb->un.varWords[0], mb->un.varWords[1]);
4836 }
4837 else {
4838 lpfc_debugfs_disc_trc(phba->pport,
4839 LPFC_DISC_TRC_MBOX,
4840 "MBOX Send: cmd:x%x mb:x%x x%x",
4841 (uint32_t)mb->mbxCommand,
4842 mb->un.varWords[0], mb->un.varWords[1]);
4843 }
4844 }
4845
dea31012005-04-17 16:05:31 -05004846 psli->slistat.mbox_cmd++;
4847 evtctr = psli->slistat.mbox_event;
4848
4849 /* next set own bit for the adapter and copy over command word */
4850 mb->mbxOwner = OWN_CHIP;
4851
James Smart3772a992009-05-22 14:50:54 -04004852 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05004853 /* First copy command data to host SLIM area */
James Smart34b02dc2008-08-24 21:49:55 -04004854 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
dea31012005-04-17 16:05:31 -05004855 } else {
James Smart92908312006-03-07 15:04:13 -05004856 if (mb->mbxCommand == MBX_CONFIG_PORT) {
dea31012005-04-17 16:05:31 -05004857 /* copy command data into host mbox for cmpl */
James Smart34b02dc2008-08-24 21:49:55 -04004858 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
dea31012005-04-17 16:05:31 -05004859 }
4860
4861 /* First copy mbox command data to HBA SLIM, skip past first
4862 word */
4863 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4864 lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0],
4865 MAILBOX_CMD_SIZE - sizeof (uint32_t));
4866
4867 /* Next copy over first word, with mbxOwner set */
James Smart34b02dc2008-08-24 21:49:55 -04004868 ldata = *((uint32_t *)mb);
dea31012005-04-17 16:05:31 -05004869 to_slim = phba->MBslimaddr;
4870 writel(ldata, to_slim);
4871 readl(to_slim); /* flush */
4872
4873 if (mb->mbxCommand == MBX_CONFIG_PORT) {
4874 /* switch over to host mailbox */
James Smart3772a992009-05-22 14:50:54 -04004875 psli->sli_flag |= LPFC_SLI_ACTIVE;
dea31012005-04-17 16:05:31 -05004876 }
4877 }
4878
4879 wmb();
dea31012005-04-17 16:05:31 -05004880
4881 switch (flag) {
4882 case MBX_NOWAIT:
James Smart09372822008-01-11 01:52:54 -05004883 /* Set up reference to mailbox command */
dea31012005-04-17 16:05:31 -05004884 psli->mbox_active = pmbox;
James Smart09372822008-01-11 01:52:54 -05004885 /* Interrupt board to do it */
4886 writel(CA_MBATT, phba->CAregaddr);
4887 readl(phba->CAregaddr); /* flush */
4888 /* Don't wait for it to finish, just return */
dea31012005-04-17 16:05:31 -05004889 break;
4890
4891 case MBX_POLL:
James Smart09372822008-01-11 01:52:54 -05004892 /* Set up null reference to mailbox command */
dea31012005-04-17 16:05:31 -05004893 psli->mbox_active = NULL;
James Smart09372822008-01-11 01:52:54 -05004894 /* Interrupt board to do it */
4895 writel(CA_MBATT, phba->CAregaddr);
4896 readl(phba->CAregaddr); /* flush */
4897
James Smart3772a992009-05-22 14:50:54 -04004898 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05004899 /* First read mbox status word */
James Smart34b02dc2008-08-24 21:49:55 -04004900 word0 = *((uint32_t *)phba->mbox);
dea31012005-04-17 16:05:31 -05004901 word0 = le32_to_cpu(word0);
4902 } else {
4903 /* First read mbox status word */
4904 word0 = readl(phba->MBslimaddr);
4905 }
4906
4907 /* Read the HBA Host Attention Register */
4908 ha_copy = readl(phba->HAregaddr);
James Smart09372822008-01-11 01:52:54 -05004909 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
4910 mb->mbxCommand) *
4911 1000) + jiffies;
4912 i = 0;
dea31012005-04-17 16:05:31 -05004913 /* Wait for command to complete */
Jamie Wellnitz41415862006-02-28 19:25:27 -05004914 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
4915 (!(ha_copy & HA_MBATT) &&
James Smart2e0fef82007-06-17 19:56:36 -05004916 (phba->link_state > LPFC_WARM_START))) {
James Smart09372822008-01-11 01:52:54 -05004917 if (time_after(jiffies, timeout)) {
dea31012005-04-17 16:05:31 -05004918 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05004919 spin_unlock_irqrestore(&phba->hbalock,
dea31012005-04-17 16:05:31 -05004920 drvr_flag);
James Smart58da1ff2008-04-07 10:15:56 -04004921 goto out_not_finished;
dea31012005-04-17 16:05:31 -05004922 }
4923
4924 /* Check if we took a mbox interrupt while we were
4925 polling */
4926 if (((word0 & OWN_CHIP) != OWN_CHIP)
4927 && (evtctr != psli->slistat.mbox_event))
4928 break;
4929
James Smart09372822008-01-11 01:52:54 -05004930 if (i++ > 10) {
4931 spin_unlock_irqrestore(&phba->hbalock,
4932 drvr_flag);
4933 msleep(1);
4934 spin_lock_irqsave(&phba->hbalock, drvr_flag);
4935 }
dea31012005-04-17 16:05:31 -05004936
James Smart3772a992009-05-22 14:50:54 -04004937 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05004938 /* First copy command data */
James Smart34b02dc2008-08-24 21:49:55 -04004939 word0 = *((uint32_t *)phba->mbox);
dea31012005-04-17 16:05:31 -05004940 word0 = le32_to_cpu(word0);
4941 if (mb->mbxCommand == MBX_CONFIG_PORT) {
4942 MAILBOX_t *slimmb;
James Smart34b02dc2008-08-24 21:49:55 -04004943 uint32_t slimword0;
dea31012005-04-17 16:05:31 -05004944 /* Check real SLIM for any errors */
4945 slimword0 = readl(phba->MBslimaddr);
4946 slimmb = (MAILBOX_t *) & slimword0;
4947 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
4948 && slimmb->mbxStatus) {
4949 psli->sli_flag &=
James Smart3772a992009-05-22 14:50:54 -04004950 ~LPFC_SLI_ACTIVE;
dea31012005-04-17 16:05:31 -05004951 word0 = slimword0;
4952 }
4953 }
4954 } else {
4955 /* First copy command data */
4956 word0 = readl(phba->MBslimaddr);
4957 }
4958 /* Read the HBA Host Attention Register */
4959 ha_copy = readl(phba->HAregaddr);
4960 }
4961
James Smart3772a992009-05-22 14:50:54 -04004962 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05004963 /* copy results back to user */
James Smart34b02dc2008-08-24 21:49:55 -04004964 lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE);
dea31012005-04-17 16:05:31 -05004965 } else {
4966 /* First copy command data */
4967 lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
4968 MAILBOX_CMD_SIZE);
4969 if ((mb->mbxCommand == MBX_DUMP_MEMORY) &&
4970 pmbox->context2) {
James Smart92d7f7b2007-06-17 19:56:38 -05004971 lpfc_memcpy_from_slim((void *)pmbox->context2,
dea31012005-04-17 16:05:31 -05004972 phba->MBslimaddr + DMP_RSP_OFFSET,
4973 mb->un.varDmp.word_cnt);
4974 }
4975 }
4976
4977 writel(HA_MBATT, phba->HAregaddr);
4978 readl(phba->HAregaddr); /* flush */
4979
4980 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4981 status = mb->mbxStatus;
4982 }
4983
James Smart2e0fef82007-06-17 19:56:36 -05004984 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4985 return status;
James Smart58da1ff2008-04-07 10:15:56 -04004986
4987out_not_finished:
4988 if (processing_queue) {
James Smartda0436e2009-05-22 14:51:39 -04004989 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
James Smart58da1ff2008-04-07 10:15:56 -04004990 lpfc_mbox_cmpl_put(phba, pmbox);
4991 }
4992 return MBX_NOT_FINISHED;
dea31012005-04-17 16:05:31 -05004993}
4994
James Smarte59058c2008-08-24 21:49:00 -04004995/**
James Smartf1126682009-06-10 17:22:44 -04004996 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
4997 * @phba: Pointer to HBA context object.
4998 *
4999 * The function blocks the posting of SLI4 asynchronous mailbox commands from
5000 * the driver internal pending mailbox queue. It will then try to wait out the
5001 * possible outstanding mailbox command before return.
5002 *
5003 * Returns:
5004 * 0 - the outstanding mailbox command completed; otherwise, the wait for
5005 * the outstanding mailbox command timed out.
5006 **/
5007static int
5008lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
5009{
5010 struct lpfc_sli *psli = &phba->sli;
5011 uint8_t actcmd = MBX_HEARTBEAT;
5012 int rc = 0;
5013 unsigned long timeout;
5014
5015 /* Mark the asynchronous mailbox command posting as blocked */
5016 spin_lock_irq(&phba->hbalock);
5017 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
5018 if (phba->sli.mbox_active)
5019 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
5020 spin_unlock_irq(&phba->hbalock);
5021 /* Determine how long we might wait for the active mailbox
5022 * command to be gracefully completed by firmware.
5023 */
5024 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
5025 jiffies;
5026 /* Wait for the outstnading mailbox command to complete */
5027 while (phba->sli.mbox_active) {
5028 /* Check active mailbox complete status every 2ms */
5029 msleep(2);
5030 if (time_after(jiffies, timeout)) {
5031 /* Timeout, marked the outstanding cmd not complete */
5032 rc = 1;
5033 break;
5034 }
5035 }
5036
5037 /* Can not cleanly block async mailbox command, fails it */
5038 if (rc) {
5039 spin_lock_irq(&phba->hbalock);
5040 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5041 spin_unlock_irq(&phba->hbalock);
5042 }
5043 return rc;
5044}
5045
5046/**
5047 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
5048 * @phba: Pointer to HBA context object.
5049 *
5050 * The function unblocks and resume posting of SLI4 asynchronous mailbox
5051 * commands from the driver internal pending mailbox queue. It makes sure
5052 * that there is no outstanding mailbox command before resuming posting
5053 * asynchronous mailbox commands. If, for any reason, there is outstanding
5054 * mailbox command, it will try to wait it out before resuming asynchronous
5055 * mailbox command posting.
5056 **/
5057static void
5058lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
5059{
5060 struct lpfc_sli *psli = &phba->sli;
5061
5062 spin_lock_irq(&phba->hbalock);
5063 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
5064 /* Asynchronous mailbox posting is not blocked, do nothing */
5065 spin_unlock_irq(&phba->hbalock);
5066 return;
5067 }
5068
5069 /* Outstanding synchronous mailbox command is guaranteed to be done,
5070 * successful or timeout, after timing-out the outstanding mailbox
5071 * command shall always be removed, so just unblock posting async
5072 * mailbox command and resume
5073 */
5074 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5075 spin_unlock_irq(&phba->hbalock);
5076
5077 /* wake up worker thread to post asynchronlous mailbox command */
5078 lpfc_worker_wake_up(phba);
5079}
5080
5081/**
James Smartda0436e2009-05-22 14:51:39 -04005082 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
5083 * @phba: Pointer to HBA context object.
5084 * @mboxq: Pointer to mailbox object.
5085 *
5086 * The function posts a mailbox to the port. The mailbox is expected
5087 * to be comletely filled in and ready for the port to operate on it.
5088 * This routine executes a synchronous completion operation on the
5089 * mailbox by polling for its completion.
5090 *
5091 * The caller must not be holding any locks when calling this routine.
5092 *
5093 * Returns:
5094 * MBX_SUCCESS - mailbox posted successfully
5095 * Any of the MBX error values.
5096 **/
5097static int
5098lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5099{
5100 int rc = MBX_SUCCESS;
5101 unsigned long iflag;
5102 uint32_t db_ready;
5103 uint32_t mcqe_status;
5104 uint32_t mbx_cmnd;
5105 unsigned long timeout;
5106 struct lpfc_sli *psli = &phba->sli;
5107 struct lpfc_mqe *mb = &mboxq->u.mqe;
5108 struct lpfc_bmbx_create *mbox_rgn;
5109 struct dma_address *dma_address;
5110 struct lpfc_register bmbx_reg;
5111
5112 /*
5113 * Only one mailbox can be active to the bootstrap mailbox region
5114 * at a time and there is no queueing provided.
5115 */
5116 spin_lock_irqsave(&phba->hbalock, iflag);
5117 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
5118 spin_unlock_irqrestore(&phba->hbalock, iflag);
5119 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5120 "(%d):2532 Mailbox command x%x (x%x) "
5121 "cannot issue Data: x%x x%x\n",
5122 mboxq->vport ? mboxq->vport->vpi : 0,
5123 mboxq->u.mb.mbxCommand,
5124 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5125 psli->sli_flag, MBX_POLL);
5126 return MBXERR_ERROR;
5127 }
5128 /* The server grabs the token and owns it until release */
5129 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
5130 phba->sli.mbox_active = mboxq;
5131 spin_unlock_irqrestore(&phba->hbalock, iflag);
5132
5133 /*
5134 * Initialize the bootstrap memory region to avoid stale data areas
5135 * in the mailbox post. Then copy the caller's mailbox contents to
5136 * the bmbx mailbox region.
5137 */
5138 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
5139 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
5140 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
5141 sizeof(struct lpfc_mqe));
5142
5143 /* Post the high mailbox dma address to the port and wait for ready. */
5144 dma_address = &phba->sli4_hba.bmbx.dma_address;
5145 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
5146
5147 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd)
5148 * 1000) + jiffies;
5149 do {
5150 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
5151 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
5152 if (!db_ready)
5153 msleep(2);
5154
5155 if (time_after(jiffies, timeout)) {
5156 rc = MBXERR_ERROR;
5157 goto exit;
5158 }
5159 } while (!db_ready);
5160
5161 /* Post the low mailbox dma address to the port. */
5162 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
5163 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd)
5164 * 1000) + jiffies;
5165 do {
5166 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
5167 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
5168 if (!db_ready)
5169 msleep(2);
5170
5171 if (time_after(jiffies, timeout)) {
5172 rc = MBXERR_ERROR;
5173 goto exit;
5174 }
5175 } while (!db_ready);
5176
5177 /*
5178 * Read the CQ to ensure the mailbox has completed.
5179 * If so, update the mailbox status so that the upper layers
5180 * can complete the request normally.
5181 */
5182 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
5183 sizeof(struct lpfc_mqe));
5184 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
5185 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
5186 sizeof(struct lpfc_mcqe));
5187 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
5188
5189 /* Prefix the mailbox status with range x4000 to note SLI4 status. */
5190 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
5191 bf_set(lpfc_mqe_status, mb, LPFC_MBX_ERROR_RANGE | mcqe_status);
5192 rc = MBXERR_ERROR;
5193 }
5194
5195 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5196 "(%d):0356 Mailbox cmd x%x (x%x) Status x%x "
5197 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
5198 " x%x x%x CQ: x%x x%x x%x x%x\n",
5199 mboxq->vport ? mboxq->vport->vpi : 0,
5200 mbx_cmnd, lpfc_sli4_mbox_opcode_get(phba, mboxq),
5201 bf_get(lpfc_mqe_status, mb),
5202 mb->un.mb_words[0], mb->un.mb_words[1],
5203 mb->un.mb_words[2], mb->un.mb_words[3],
5204 mb->un.mb_words[4], mb->un.mb_words[5],
5205 mb->un.mb_words[6], mb->un.mb_words[7],
5206 mb->un.mb_words[8], mb->un.mb_words[9],
5207 mb->un.mb_words[10], mb->un.mb_words[11],
5208 mb->un.mb_words[12], mboxq->mcqe.word0,
5209 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
5210 mboxq->mcqe.trailer);
5211exit:
5212 /* We are holding the token, no needed for lock when release */
5213 spin_lock_irqsave(&phba->hbalock, iflag);
5214 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5215 phba->sli.mbox_active = NULL;
5216 spin_unlock_irqrestore(&phba->hbalock, iflag);
5217 return rc;
5218}
5219
5220/**
5221 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
5222 * @phba: Pointer to HBA context object.
5223 * @pmbox: Pointer to mailbox object.
5224 * @flag: Flag indicating how the mailbox need to be processed.
5225 *
5226 * This function is called by discovery code and HBA management code to submit
5227 * a mailbox command to firmware with SLI-4 interface spec.
5228 *
5229 * Return codes the caller owns the mailbox command after the return of the
5230 * function.
5231 **/
5232static int
5233lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
5234 uint32_t flag)
5235{
5236 struct lpfc_sli *psli = &phba->sli;
5237 unsigned long iflags;
5238 int rc;
5239
James Smart8fa38512009-07-19 10:01:03 -04005240 rc = lpfc_mbox_dev_check(phba);
5241 if (unlikely(rc)) {
5242 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5243 "(%d):2544 Mailbox command x%x (x%x) "
5244 "cannot issue Data: x%x x%x\n",
5245 mboxq->vport ? mboxq->vport->vpi : 0,
5246 mboxq->u.mb.mbxCommand,
5247 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5248 psli->sli_flag, flag);
5249 goto out_not_finished;
5250 }
5251
James Smartda0436e2009-05-22 14:51:39 -04005252 /* Detect polling mode and jump to a handler */
5253 if (!phba->sli4_hba.intr_enable) {
5254 if (flag == MBX_POLL)
5255 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
5256 else
5257 rc = -EIO;
5258 if (rc != MBX_SUCCESS)
5259 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5260 "(%d):2541 Mailbox command x%x "
5261 "(x%x) cannot issue Data: x%x x%x\n",
5262 mboxq->vport ? mboxq->vport->vpi : 0,
5263 mboxq->u.mb.mbxCommand,
5264 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5265 psli->sli_flag, flag);
5266 return rc;
5267 } else if (flag == MBX_POLL) {
James Smartf1126682009-06-10 17:22:44 -04005268 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
5269 "(%d):2542 Try to issue mailbox command "
5270 "x%x (x%x) synchronously ahead of async"
5271 "mailbox command queue: x%x x%x\n",
James Smartda0436e2009-05-22 14:51:39 -04005272 mboxq->vport ? mboxq->vport->vpi : 0,
5273 mboxq->u.mb.mbxCommand,
5274 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5275 psli->sli_flag, flag);
James Smartf1126682009-06-10 17:22:44 -04005276 /* Try to block the asynchronous mailbox posting */
5277 rc = lpfc_sli4_async_mbox_block(phba);
5278 if (!rc) {
5279 /* Successfully blocked, now issue sync mbox cmd */
5280 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
5281 if (rc != MBX_SUCCESS)
5282 lpfc_printf_log(phba, KERN_ERR,
5283 LOG_MBOX | LOG_SLI,
5284 "(%d):2597 Mailbox command "
5285 "x%x (x%x) cannot issue "
5286 "Data: x%x x%x\n",
5287 mboxq->vport ?
5288 mboxq->vport->vpi : 0,
5289 mboxq->u.mb.mbxCommand,
5290 lpfc_sli4_mbox_opcode_get(phba,
5291 mboxq),
5292 psli->sli_flag, flag);
5293 /* Unblock the async mailbox posting afterward */
5294 lpfc_sli4_async_mbox_unblock(phba);
5295 }
5296 return rc;
James Smartda0436e2009-05-22 14:51:39 -04005297 }
5298
5299 /* Now, interrupt mode asynchrous mailbox command */
5300 rc = lpfc_mbox_cmd_check(phba, mboxq);
5301 if (rc) {
5302 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5303 "(%d):2543 Mailbox command x%x (x%x) "
5304 "cannot issue Data: x%x x%x\n",
5305 mboxq->vport ? mboxq->vport->vpi : 0,
5306 mboxq->u.mb.mbxCommand,
5307 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5308 psli->sli_flag, flag);
5309 goto out_not_finished;
5310 }
James Smartda0436e2009-05-22 14:51:39 -04005311
5312 /* Put the mailbox command to the driver internal FIFO */
5313 psli->slistat.mbox_busy++;
5314 spin_lock_irqsave(&phba->hbalock, iflags);
5315 lpfc_mbox_put(phba, mboxq);
5316 spin_unlock_irqrestore(&phba->hbalock, iflags);
5317 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5318 "(%d):0354 Mbox cmd issue - Enqueue Data: "
5319 "x%x (x%x) x%x x%x x%x\n",
5320 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
5321 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5322 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5323 phba->pport->port_state,
5324 psli->sli_flag, MBX_NOWAIT);
5325 /* Wake up worker thread to transport mailbox command from head */
5326 lpfc_worker_wake_up(phba);
5327
5328 return MBX_BUSY;
5329
5330out_not_finished:
5331 return MBX_NOT_FINISHED;
5332}
5333
5334/**
5335 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
5336 * @phba: Pointer to HBA context object.
5337 *
5338 * This function is called by worker thread to send a mailbox command to
5339 * SLI4 HBA firmware.
5340 *
5341 **/
5342int
5343lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
5344{
5345 struct lpfc_sli *psli = &phba->sli;
5346 LPFC_MBOXQ_t *mboxq;
5347 int rc = MBX_SUCCESS;
5348 unsigned long iflags;
5349 struct lpfc_mqe *mqe;
5350 uint32_t mbx_cmnd;
5351
5352 /* Check interrupt mode before post async mailbox command */
5353 if (unlikely(!phba->sli4_hba.intr_enable))
5354 return MBX_NOT_FINISHED;
5355
5356 /* Check for mailbox command service token */
5357 spin_lock_irqsave(&phba->hbalock, iflags);
5358 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
5359 spin_unlock_irqrestore(&phba->hbalock, iflags);
5360 return MBX_NOT_FINISHED;
5361 }
5362 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
5363 spin_unlock_irqrestore(&phba->hbalock, iflags);
5364 return MBX_NOT_FINISHED;
5365 }
5366 if (unlikely(phba->sli.mbox_active)) {
5367 spin_unlock_irqrestore(&phba->hbalock, iflags);
5368 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5369 "0384 There is pending active mailbox cmd\n");
5370 return MBX_NOT_FINISHED;
5371 }
5372 /* Take the mailbox command service token */
5373 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
5374
5375 /* Get the next mailbox command from head of queue */
5376 mboxq = lpfc_mbox_get(phba);
5377
5378 /* If no more mailbox command waiting for post, we're done */
5379 if (!mboxq) {
5380 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5381 spin_unlock_irqrestore(&phba->hbalock, iflags);
5382 return MBX_SUCCESS;
5383 }
5384 phba->sli.mbox_active = mboxq;
5385 spin_unlock_irqrestore(&phba->hbalock, iflags);
5386
5387 /* Check device readiness for posting mailbox command */
5388 rc = lpfc_mbox_dev_check(phba);
5389 if (unlikely(rc))
5390 /* Driver clean routine will clean up pending mailbox */
5391 goto out_not_finished;
5392
5393 /* Prepare the mbox command to be posted */
5394 mqe = &mboxq->u.mqe;
5395 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
5396
5397 /* Start timer for the mbox_tmo and log some mailbox post messages */
5398 mod_timer(&psli->mbox_tmo, (jiffies +
5399 (HZ * lpfc_mbox_tmo_val(phba, mbx_cmnd))));
5400
5401 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5402 "(%d):0355 Mailbox cmd x%x (x%x) issue Data: "
5403 "x%x x%x\n",
5404 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
5405 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5406 phba->pport->port_state, psli->sli_flag);
5407
5408 if (mbx_cmnd != MBX_HEARTBEAT) {
5409 if (mboxq->vport) {
5410 lpfc_debugfs_disc_trc(mboxq->vport,
5411 LPFC_DISC_TRC_MBOX_VPORT,
5412 "MBOX Send vport: cmd:x%x mb:x%x x%x",
5413 mbx_cmnd, mqe->un.mb_words[0],
5414 mqe->un.mb_words[1]);
5415 } else {
5416 lpfc_debugfs_disc_trc(phba->pport,
5417 LPFC_DISC_TRC_MBOX,
5418 "MBOX Send: cmd:x%x mb:x%x x%x",
5419 mbx_cmnd, mqe->un.mb_words[0],
5420 mqe->un.mb_words[1]);
5421 }
5422 }
5423 psli->slistat.mbox_cmd++;
5424
5425 /* Post the mailbox command to the port */
5426 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
5427 if (rc != MBX_SUCCESS) {
5428 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5429 "(%d):2533 Mailbox command x%x (x%x) "
5430 "cannot issue Data: x%x x%x\n",
5431 mboxq->vport ? mboxq->vport->vpi : 0,
5432 mboxq->u.mb.mbxCommand,
5433 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5434 psli->sli_flag, MBX_NOWAIT);
5435 goto out_not_finished;
5436 }
5437
5438 return rc;
5439
5440out_not_finished:
5441 spin_lock_irqsave(&phba->hbalock, iflags);
5442 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
5443 __lpfc_mbox_cmpl_put(phba, mboxq);
5444 /* Release the token */
5445 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5446 phba->sli.mbox_active = NULL;
5447 spin_unlock_irqrestore(&phba->hbalock, iflags);
5448
5449 return MBX_NOT_FINISHED;
5450}
5451
5452/**
5453 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
5454 * @phba: Pointer to HBA context object.
5455 * @pmbox: Pointer to mailbox object.
5456 * @flag: Flag indicating how the mailbox need to be processed.
5457 *
5458 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
5459 * the API jump table function pointer from the lpfc_hba struct.
5460 *
5461 * Return codes the caller owns the mailbox command after the return of the
5462 * function.
5463 **/
5464int
5465lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
5466{
5467 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
5468}
5469
5470/**
5471 * lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table
5472 * @phba: The hba struct for which this call is being executed.
5473 * @dev_grp: The HBA PCI-Device group number.
5474 *
5475 * This routine sets up the mbox interface API function jump table in @phba
5476 * struct.
5477 * Returns: 0 - success, -ENODEV - failure.
5478 **/
5479int
5480lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5481{
5482
5483 switch (dev_grp) {
5484 case LPFC_PCI_DEV_LP:
5485 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
5486 phba->lpfc_sli_handle_slow_ring_event =
5487 lpfc_sli_handle_slow_ring_event_s3;
5488 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
5489 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
5490 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
5491 break;
5492 case LPFC_PCI_DEV_OC:
5493 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
5494 phba->lpfc_sli_handle_slow_ring_event =
5495 lpfc_sli_handle_slow_ring_event_s4;
5496 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
5497 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
5498 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
5499 break;
5500 default:
5501 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5502 "1420 Invalid HBA PCI-device group: 0x%x\n",
5503 dev_grp);
5504 return -ENODEV;
5505 break;
5506 }
5507 return 0;
5508}
5509
5510/**
James Smart3621a712009-04-06 18:47:14 -04005511 * __lpfc_sli_ringtx_put - Add an iocb to the txq
James Smarte59058c2008-08-24 21:49:00 -04005512 * @phba: Pointer to HBA context object.
5513 * @pring: Pointer to driver SLI ring object.
5514 * @piocb: Pointer to address of newly added command iocb.
5515 *
5516 * This function is called with hbalock held to add a command
5517 * iocb to the txq when SLI layer cannot submit the command iocb
5518 * to the ring.
5519 **/
James Smart858c9f62007-06-17 19:56:39 -05005520static void
James Smart92d7f7b2007-06-17 19:56:38 -05005521__lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
James Smart2e0fef82007-06-17 19:56:36 -05005522 struct lpfc_iocbq *piocb)
dea31012005-04-17 16:05:31 -05005523{
5524 /* Insert the caller's iocb in the txq tail for later processing. */
5525 list_add_tail(&piocb->list, &pring->txq);
5526 pring->txq_cnt++;
dea31012005-04-17 16:05:31 -05005527}
5528
James Smarte59058c2008-08-24 21:49:00 -04005529/**
James Smart3621a712009-04-06 18:47:14 -04005530 * lpfc_sli_next_iocb - Get the next iocb in the txq
James Smarte59058c2008-08-24 21:49:00 -04005531 * @phba: Pointer to HBA context object.
5532 * @pring: Pointer to driver SLI ring object.
5533 * @piocb: Pointer to address of newly added command iocb.
5534 *
5535 * This function is called with hbalock held before a new
5536 * iocb is submitted to the firmware. This function checks
5537 * txq to flush the iocbs in txq to Firmware before
5538 * submitting new iocbs to the Firmware.
5539 * If there are iocbs in the txq which need to be submitted
5540 * to firmware, lpfc_sli_next_iocb returns the first element
5541 * of the txq after dequeuing it from txq.
5542 * If there is no iocb in the txq then the function will return
5543 * *piocb and *piocb is set to NULL. Caller needs to check
5544 * *piocb to find if there are more commands in the txq.
5545 **/
dea31012005-04-17 16:05:31 -05005546static struct lpfc_iocbq *
5547lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
James Smart2e0fef82007-06-17 19:56:36 -05005548 struct lpfc_iocbq **piocb)
dea31012005-04-17 16:05:31 -05005549{
5550 struct lpfc_iocbq * nextiocb;
5551
5552 nextiocb = lpfc_sli_ringtx_get(phba, pring);
5553 if (!nextiocb) {
5554 nextiocb = *piocb;
5555 *piocb = NULL;
5556 }
5557
5558 return nextiocb;
5559}
5560
James Smarte59058c2008-08-24 21:49:00 -04005561/**
James Smart3772a992009-05-22 14:50:54 -04005562 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
James Smarte59058c2008-08-24 21:49:00 -04005563 * @phba: Pointer to HBA context object.
James Smart3772a992009-05-22 14:50:54 -04005564 * @ring_number: SLI ring number to issue iocb on.
James Smarte59058c2008-08-24 21:49:00 -04005565 * @piocb: Pointer to command iocb.
5566 * @flag: Flag indicating if this command can be put into txq.
5567 *
James Smart3772a992009-05-22 14:50:54 -04005568 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
5569 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
5570 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
5571 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
5572 * this function allows only iocbs for posting buffers. This function finds
5573 * next available slot in the command ring and posts the command to the
5574 * available slot and writes the port attention register to request HBA start
5575 * processing new iocb. If there is no slot available in the ring and
5576 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
5577 * the function returns IOCB_BUSY.
James Smarte59058c2008-08-24 21:49:00 -04005578 *
James Smart3772a992009-05-22 14:50:54 -04005579 * This function is called with hbalock held. The function will return success
5580 * after it successfully submit the iocb to firmware or after adding to the
5581 * txq.
James Smarte59058c2008-08-24 21:49:00 -04005582 **/
James Smart98c9ea52007-10-27 13:37:33 -04005583static int
James Smart3772a992009-05-22 14:50:54 -04005584__lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
dea31012005-04-17 16:05:31 -05005585 struct lpfc_iocbq *piocb, uint32_t flag)
5586{
5587 struct lpfc_iocbq *nextiocb;
5588 IOCB_t *iocb;
James Smart3772a992009-05-22 14:50:54 -04005589 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
dea31012005-04-17 16:05:31 -05005590
James Smart92d7f7b2007-06-17 19:56:38 -05005591 if (piocb->iocb_cmpl && (!piocb->vport) &&
5592 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
5593 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
5594 lpfc_printf_log(phba, KERN_ERR,
5595 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04005596 "1807 IOCB x%x failed. No vport\n",
James Smart92d7f7b2007-06-17 19:56:38 -05005597 piocb->iocb.ulpCommand);
5598 dump_stack();
5599 return IOCB_ERROR;
5600 }
5601
5602
Linas Vepstas8d63f372007-02-14 14:28:36 -06005603 /* If the PCI channel is in offline state, do not post iocbs. */
5604 if (unlikely(pci_channel_offline(phba->pcidev)))
5605 return IOCB_ERROR;
5606
James Smarta257bf92009-04-06 18:48:10 -04005607 /* If HBA has a deferred error attention, fail the iocb. */
5608 if (unlikely(phba->hba_flag & DEFER_ERATT))
5609 return IOCB_ERROR;
5610
dea31012005-04-17 16:05:31 -05005611 /*
5612 * We should never get an IOCB if we are in a < LINK_DOWN state
5613 */
James Smart2e0fef82007-06-17 19:56:36 -05005614 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
dea31012005-04-17 16:05:31 -05005615 return IOCB_ERROR;
5616
5617 /*
5618 * Check to see if we are blocking IOCB processing because of a
James Smart0b727fe2007-10-27 13:37:25 -04005619 * outstanding event.
dea31012005-04-17 16:05:31 -05005620 */
James Smart0b727fe2007-10-27 13:37:25 -04005621 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
dea31012005-04-17 16:05:31 -05005622 goto iocb_busy;
5623
James Smart2e0fef82007-06-17 19:56:36 -05005624 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
dea31012005-04-17 16:05:31 -05005625 /*
James Smart2680eea2007-04-25 09:52:55 -04005626 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
dea31012005-04-17 16:05:31 -05005627 * can be issued if the link is not up.
5628 */
5629 switch (piocb->iocb.ulpCommand) {
James Smart84774a42008-08-24 21:50:06 -04005630 case CMD_GEN_REQUEST64_CR:
5631 case CMD_GEN_REQUEST64_CX:
5632 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
5633 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
James Smart6a9c52c2009-10-02 15:16:51 -04005634 FC_RCTL_DD_UNSOL_CMD) ||
James Smart84774a42008-08-24 21:50:06 -04005635 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
5636 MENLO_TRANSPORT_TYPE))
5637
5638 goto iocb_busy;
5639 break;
dea31012005-04-17 16:05:31 -05005640 case CMD_QUE_RING_BUF_CN:
5641 case CMD_QUE_RING_BUF64_CN:
dea31012005-04-17 16:05:31 -05005642 /*
5643 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
5644 * completion, iocb_cmpl MUST be 0.
5645 */
5646 if (piocb->iocb_cmpl)
5647 piocb->iocb_cmpl = NULL;
5648 /*FALLTHROUGH*/
5649 case CMD_CREATE_XRI_CR:
James Smart2680eea2007-04-25 09:52:55 -04005650 case CMD_CLOSE_XRI_CN:
5651 case CMD_CLOSE_XRI_CX:
dea31012005-04-17 16:05:31 -05005652 break;
5653 default:
5654 goto iocb_busy;
5655 }
5656
5657 /*
5658 * For FCP commands, we must be in a state where we can process link
5659 * attention events.
5660 */
5661 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
James Smart92d7f7b2007-06-17 19:56:38 -05005662 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
dea31012005-04-17 16:05:31 -05005663 goto iocb_busy;
James Smart92d7f7b2007-06-17 19:56:38 -05005664 }
dea31012005-04-17 16:05:31 -05005665
dea31012005-04-17 16:05:31 -05005666 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
5667 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
5668 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
5669
5670 if (iocb)
5671 lpfc_sli_update_ring(phba, pring);
5672 else
5673 lpfc_sli_update_full_ring(phba, pring);
5674
5675 if (!piocb)
5676 return IOCB_SUCCESS;
5677
5678 goto out_busy;
5679
5680 iocb_busy:
5681 pring->stats.iocb_cmd_delay++;
5682
5683 out_busy:
5684
5685 if (!(flag & SLI_IOCB_RET_IOCB)) {
James Smart92d7f7b2007-06-17 19:56:38 -05005686 __lpfc_sli_ringtx_put(phba, pring, piocb);
dea31012005-04-17 16:05:31 -05005687 return IOCB_SUCCESS;
5688 }
5689
5690 return IOCB_BUSY;
5691}
5692
James Smart3772a992009-05-22 14:50:54 -04005693/**
James Smart4f774512009-05-22 14:52:35 -04005694 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
5695 * @phba: Pointer to HBA context object.
5696 * @piocb: Pointer to command iocb.
5697 * @sglq: Pointer to the scatter gather queue object.
5698 *
5699 * This routine converts the bpl or bde that is in the IOCB
5700 * to a sgl list for the sli4 hardware. The physical address
5701 * of the bpl/bde is converted back to a virtual address.
5702 * If the IOCB contains a BPL then the list of BDE's is
5703 * converted to sli4_sge's. If the IOCB contains a single
5704 * BDE then it is converted to a single sli_sge.
5705 * The IOCB is still in cpu endianess so the contents of
5706 * the bpl can be used without byte swapping.
5707 *
5708 * Returns valid XRI = Success, NO_XRI = Failure.
5709**/
5710static uint16_t
5711lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
5712 struct lpfc_sglq *sglq)
5713{
5714 uint16_t xritag = NO_XRI;
5715 struct ulp_bde64 *bpl = NULL;
5716 struct ulp_bde64 bde;
5717 struct sli4_sge *sgl = NULL;
5718 IOCB_t *icmd;
5719 int numBdes = 0;
5720 int i = 0;
5721
5722 if (!piocbq || !sglq)
5723 return xritag;
5724
5725 sgl = (struct sli4_sge *)sglq->sgl;
5726 icmd = &piocbq->iocb;
5727 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
5728 numBdes = icmd->un.genreq64.bdl.bdeSize /
5729 sizeof(struct ulp_bde64);
5730 /* The addrHigh and addrLow fields within the IOCB
5731 * have not been byteswapped yet so there is no
5732 * need to swap them back.
5733 */
5734 bpl = (struct ulp_bde64 *)
5735 ((struct lpfc_dmabuf *)piocbq->context3)->virt;
5736
5737 if (!bpl)
5738 return xritag;
5739
5740 for (i = 0; i < numBdes; i++) {
5741 /* Should already be byte swapped. */
5742 sgl->addr_hi = bpl->addrHigh;
5743 sgl->addr_lo = bpl->addrLow;
5744 /* swap the size field back to the cpu so we
5745 * can assign it to the sgl.
5746 */
5747 bde.tus.w = le32_to_cpu(bpl->tus.w);
5748 bf_set(lpfc_sli4_sge_len, sgl, bde.tus.f.bdeSize);
5749 if ((i+1) == numBdes)
5750 bf_set(lpfc_sli4_sge_last, sgl, 1);
5751 else
5752 bf_set(lpfc_sli4_sge_last, sgl, 0);
5753 sgl->word2 = cpu_to_le32(sgl->word2);
5754 sgl->word3 = cpu_to_le32(sgl->word3);
5755 bpl++;
5756 sgl++;
5757 }
5758 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
5759 /* The addrHigh and addrLow fields of the BDE have not
5760 * been byteswapped yet so they need to be swapped
5761 * before putting them in the sgl.
5762 */
5763 sgl->addr_hi =
5764 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
5765 sgl->addr_lo =
5766 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
5767 bf_set(lpfc_sli4_sge_len, sgl,
5768 icmd->un.genreq64.bdl.bdeSize);
5769 bf_set(lpfc_sli4_sge_last, sgl, 1);
5770 sgl->word2 = cpu_to_le32(sgl->word2);
5771 sgl->word3 = cpu_to_le32(sgl->word3);
5772 }
5773 return sglq->sli4_xritag;
5774}
5775
5776/**
5777 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
5778 * @phba: Pointer to HBA context object.
James Smart4f774512009-05-22 14:52:35 -04005779 *
5780 * This routine performs a round robin SCSI command to SLI4 FCP WQ index
James Smart8fa38512009-07-19 10:01:03 -04005781 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
5782 * held.
James Smart4f774512009-05-22 14:52:35 -04005783 *
5784 * Return: index into SLI4 fast-path FCP queue index.
5785 **/
5786static uint32_t
James Smart8fa38512009-07-19 10:01:03 -04005787lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
James Smart4f774512009-05-22 14:52:35 -04005788{
James Smart8fa38512009-07-19 10:01:03 -04005789 ++phba->fcp_qidx;
5790 if (phba->fcp_qidx >= phba->cfg_fcp_wq_count)
5791 phba->fcp_qidx = 0;
James Smart4f774512009-05-22 14:52:35 -04005792
James Smart8fa38512009-07-19 10:01:03 -04005793 return phba->fcp_qidx;
James Smart4f774512009-05-22 14:52:35 -04005794}
5795
5796/**
5797 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
5798 * @phba: Pointer to HBA context object.
5799 * @piocb: Pointer to command iocb.
5800 * @wqe: Pointer to the work queue entry.
5801 *
5802 * This routine converts the iocb command to its Work Queue Entry
5803 * equivalent. The wqe pointer should not have any fields set when
5804 * this routine is called because it will memcpy over them.
5805 * This routine does not set the CQ_ID or the WQEC bits in the
5806 * wqe.
5807 *
5808 * Returns: 0 = Success, IOCB_ERROR = Failure.
5809 **/
5810static int
5811lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
5812 union lpfc_wqe *wqe)
5813{
James Smart5ffc2662009-11-18 15:39:44 -05005814 uint32_t xmit_len = 0, total_len = 0;
James Smart4f774512009-05-22 14:52:35 -04005815 uint8_t ct = 0;
5816 uint32_t fip;
5817 uint32_t abort_tag;
5818 uint8_t command_type = ELS_COMMAND_NON_FIP;
5819 uint8_t cmnd;
5820 uint16_t xritag;
5821 struct ulp_bde64 *bpl = NULL;
James Smartc8685952009-11-18 15:39:16 -05005822 uint32_t els_id = ELS_ID_DEFAULT;
James Smart5ffc2662009-11-18 15:39:44 -05005823 int numBdes, i;
5824 struct ulp_bde64 bde;
James Smart4f774512009-05-22 14:52:35 -04005825
James Smart45ed1192009-10-02 15:17:02 -04005826 fip = phba->hba_flag & HBA_FIP_SUPPORT;
James Smart4f774512009-05-22 14:52:35 -04005827 /* The fcp commands will set command type */
James Smart0c287582009-06-10 17:22:56 -04005828 if (iocbq->iocb_flag & LPFC_IO_FCP)
James Smart4f774512009-05-22 14:52:35 -04005829 command_type = FCP_COMMAND;
James Smartc8685952009-11-18 15:39:16 -05005830 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
James Smart0c287582009-06-10 17:22:56 -04005831 command_type = ELS_COMMAND_FIP;
5832 else
5833 command_type = ELS_COMMAND_NON_FIP;
5834
James Smart4f774512009-05-22 14:52:35 -04005835 /* Some of the fields are in the right position already */
5836 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
5837 abort_tag = (uint32_t) iocbq->iotag;
5838 xritag = iocbq->sli4_xritag;
5839 wqe->words[7] = 0; /* The ct field has moved so reset */
5840 /* words0-2 bpl convert bde */
5841 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
James Smart5ffc2662009-11-18 15:39:44 -05005842 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
5843 sizeof(struct ulp_bde64);
James Smart4f774512009-05-22 14:52:35 -04005844 bpl = (struct ulp_bde64 *)
5845 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
5846 if (!bpl)
5847 return IOCB_ERROR;
5848
5849 /* Should already be byte swapped. */
5850 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
5851 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
5852 /* swap the size field back to the cpu so we
5853 * can assign it to the sgl.
5854 */
5855 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
James Smart5ffc2662009-11-18 15:39:44 -05005856 xmit_len = wqe->generic.bde.tus.f.bdeSize;
5857 total_len = 0;
5858 for (i = 0; i < numBdes; i++) {
5859 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
5860 total_len += bde.tus.f.bdeSize;
5861 }
James Smart4f774512009-05-22 14:52:35 -04005862 } else
James Smart5ffc2662009-11-18 15:39:44 -05005863 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
James Smart4f774512009-05-22 14:52:35 -04005864
5865 iocbq->iocb.ulpIoTag = iocbq->iotag;
5866 cmnd = iocbq->iocb.ulpCommand;
5867
5868 switch (iocbq->iocb.ulpCommand) {
5869 case CMD_ELS_REQUEST64_CR:
5870 if (!iocbq->iocb.ulpLe) {
5871 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5872 "2007 Only Limited Edition cmd Format"
5873 " supported 0x%x\n",
5874 iocbq->iocb.ulpCommand);
5875 return IOCB_ERROR;
5876 }
James Smart5ffc2662009-11-18 15:39:44 -05005877 wqe->els_req.payload_len = xmit_len;
James Smart4f774512009-05-22 14:52:35 -04005878 /* Els_reguest64 has a TMO */
5879 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
5880 iocbq->iocb.ulpTimeout);
5881 /* Need a VF for word 4 set the vf bit*/
5882 bf_set(els_req64_vf, &wqe->els_req, 0);
5883 /* And a VFID for word 12 */
5884 bf_set(els_req64_vfid, &wqe->els_req, 0);
5885 /*
5886 * Set ct field to 3, indicates that the context_tag field
5887 * contains the FCFI and remote N_Port_ID is
5888 * in word 5.
5889 */
5890
5891 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
5892 bf_set(lpfc_wqe_gen_context, &wqe->generic,
5893 iocbq->iocb.ulpContext);
5894
James Smart4f774512009-05-22 14:52:35 -04005895 bf_set(lpfc_wqe_gen_ct, &wqe->generic, ct);
5896 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
5897 /* CCP CCPE PV PRI in word10 were set in the memcpy */
James Smartc8685952009-11-18 15:39:16 -05005898
5899 if (command_type == ELS_COMMAND_FIP) {
5900 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
5901 >> LPFC_FIP_ELS_ID_SHIFT);
5902 }
5903 bf_set(lpfc_wqe_gen_els_id, &wqe->generic, els_id);
5904
James Smart4f774512009-05-22 14:52:35 -04005905 break;
James Smart5ffc2662009-11-18 15:39:44 -05005906 case CMD_XMIT_SEQUENCE64_CX:
5907 bf_set(lpfc_wqe_gen_context, &wqe->generic,
5908 iocbq->iocb.un.ulpWord[3]);
5909 wqe->generic.word3 = 0;
5910 bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext);
James Smart5ffc2662009-11-18 15:39:44 -05005911 /* The entire sequence is transmitted for this IOCB */
5912 xmit_len = total_len;
5913 cmnd = CMD_XMIT_SEQUENCE64_CR;
James Smart4f774512009-05-22 14:52:35 -04005914 case CMD_XMIT_SEQUENCE64_CR:
5915 /* word3 iocb=io_tag32 wqe=payload_offset */
5916 /* payload offset used for multilpe outstanding
5917 * sequences on the same exchange
5918 */
5919 wqe->words[3] = 0;
5920 /* word4 relative_offset memcpy */
5921 /* word5 r_ctl/df_ctl memcpy */
5922 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
James Smart5ffc2662009-11-18 15:39:44 -05005923 wqe->xmit_sequence.xmit_len = xmit_len;
5924 command_type = OTHER_COMMAND;
James Smart4f774512009-05-22 14:52:35 -04005925 break;
5926 case CMD_XMIT_BCAST64_CN:
5927 /* word3 iocb=iotag32 wqe=payload_len */
5928 wqe->words[3] = 0; /* no definition for this in wqe */
5929 /* word4 iocb=rsvd wqe=rsvd */
5930 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
5931 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
5932 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
5933 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
5934 break;
5935 case CMD_FCP_IWRITE64_CR:
5936 command_type = FCP_COMMAND_DATA_OUT;
5937 /* The struct for wqe fcp_iwrite has 3 fields that are somewhat
5938 * confusing.
5939 * word3 is payload_len: byte offset to the sgl entry for the
5940 * fcp_command.
5941 * word4 is total xfer len, same as the IOCB->ulpParameter.
5942 * word5 is initial xfer len 0 = wait for xfer-ready
5943 */
5944
5945 /* Always wait for xfer-ready before sending data */
5946 wqe->fcp_iwrite.initial_xfer_len = 0;
5947 /* word 4 (xfer length) should have been set on the memcpy */
5948
5949 /* allow write to fall through to read */
5950 case CMD_FCP_IREAD64_CR:
5951 /* FCP_CMD is always the 1st sgl entry */
5952 wqe->fcp_iread.payload_len =
James Smart5ffc2662009-11-18 15:39:44 -05005953 xmit_len + sizeof(struct fcp_rsp);
James Smart4f774512009-05-22 14:52:35 -04005954
5955 /* word 4 (xfer length) should have been set on the memcpy */
5956
5957 bf_set(lpfc_wqe_gen_erp, &wqe->generic,
5958 iocbq->iocb.ulpFCP2Rcvy);
5959 bf_set(lpfc_wqe_gen_lnk, &wqe->generic, iocbq->iocb.ulpXS);
5960 /* The XC bit and the XS bit are similar. The driver never
5961 * tracked whether or not the exchange was previouslly open.
5962 * XC = Exchange create, 0 is create. 1 is already open.
5963 * XS = link cmd: 1 do not close the exchange after command.
5964 * XS = 0 close exchange when command completes.
5965 * The only time we would not set the XC bit is when the XS bit
5966 * is set and we are sending our 2nd or greater command on
5967 * this exchange.
5968 */
James Smart4f774512009-05-22 14:52:35 -04005969 /* Always open the exchange */
5970 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
5971
5972 wqe->words[10] &= 0xffff0000; /* zero out ebde count */
5973 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
James Smartf1126682009-06-10 17:22:44 -04005974 break;
5975 case CMD_FCP_ICMND64_CR:
5976 /* Always open the exchange */
5977 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
5978
5979 wqe->words[4] = 0;
5980 wqe->words[10] &= 0xffff0000; /* zero out ebde count */
5981 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
James Smart4f774512009-05-22 14:52:35 -04005982 break;
5983 case CMD_GEN_REQUEST64_CR:
5984 /* word3 command length is described as byte offset to the
5985 * rsp_data. Would always be 16, sizeof(struct sli4_sge)
5986 * sgl[0] = cmnd
5987 * sgl[1] = rsp.
5988 *
5989 */
James Smart5ffc2662009-11-18 15:39:44 -05005990 wqe->gen_req.command_len = xmit_len;
James Smart4f774512009-05-22 14:52:35 -04005991 /* Word4 parameter copied in the memcpy */
5992 /* Word5 [rctl, type, df_ctl, la] copied in memcpy */
5993 /* word6 context tag copied in memcpy */
5994 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
5995 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
5996 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5997 "2015 Invalid CT %x command 0x%x\n",
5998 ct, iocbq->iocb.ulpCommand);
5999 return IOCB_ERROR;
6000 }
6001 bf_set(lpfc_wqe_gen_ct, &wqe->generic, 0);
6002 bf_set(wqe_tmo, &wqe->gen_req.wqe_com,
6003 iocbq->iocb.ulpTimeout);
6004
6005 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
6006 command_type = OTHER_COMMAND;
6007 break;
6008 case CMD_XMIT_ELS_RSP64_CX:
6009 /* words0-2 BDE memcpy */
6010 /* word3 iocb=iotag32 wqe=rsvd */
6011 wqe->words[3] = 0;
6012 /* word4 iocb=did wge=rsvd. */
6013 wqe->words[4] = 0;
6014 /* word5 iocb=rsvd wge=did */
6015 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
6016 iocbq->iocb.un.elsreq64.remoteID);
6017
6018 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
6019 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
6020
6021 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
6022 bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext);
6023 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
6024 bf_set(lpfc_wqe_gen_context, &wqe->generic,
6025 iocbq->vport->vpi + phba->vpi_base);
6026 command_type = OTHER_COMMAND;
6027 break;
6028 case CMD_CLOSE_XRI_CN:
6029 case CMD_ABORT_XRI_CN:
6030 case CMD_ABORT_XRI_CX:
6031 /* words 0-2 memcpy should be 0 rserved */
6032 /* port will send abts */
6033 if (iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
6034 /*
6035 * The link is down so the fw does not need to send abts
6036 * on the wire.
6037 */
6038 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
6039 else
6040 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
6041 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
James Smart4f774512009-05-22 14:52:35 -04006042 wqe->words[5] = 0;
6043 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
6044 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
6045 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
James Smart4f774512009-05-22 14:52:35 -04006046 /*
6047 * The abort handler will send us CMD_ABORT_XRI_CN or
6048 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
6049 */
6050 bf_set(lpfc_wqe_gen_command, &wqe->generic, CMD_ABORT_XRI_CX);
6051 cmnd = CMD_ABORT_XRI_CX;
6052 command_type = OTHER_COMMAND;
6053 xritag = 0;
6054 break;
James Smart6669f9b2009-10-02 15:16:45 -04006055 case CMD_XMIT_BLS_RSP64_CX:
6056 /* As BLS ABTS-ACC WQE is very different from other WQEs,
6057 * we re-construct this WQE here based on information in
6058 * iocbq from scratch.
6059 */
6060 memset(wqe, 0, sizeof(union lpfc_wqe));
James Smart5ffc2662009-11-18 15:39:44 -05006061 /* OX_ID is invariable to who sent ABTS to CT exchange */
James Smart6669f9b2009-10-02 15:16:45 -04006062 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
James Smart5ffc2662009-11-18 15:39:44 -05006063 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_acc));
6064 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_acc) ==
6065 LPFC_ABTS_UNSOL_INT) {
6066 /* ABTS sent by initiator to CT exchange, the
6067 * RX_ID field will be filled with the newly
6068 * allocated responder XRI.
6069 */
6070 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
6071 iocbq->sli4_xritag);
6072 } else {
6073 /* ABTS sent by responder to CT exchange, the
6074 * RX_ID field will be filled with the responder
6075 * RX_ID from ABTS.
6076 */
6077 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
6078 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_acc));
6079 }
James Smart6669f9b2009-10-02 15:16:45 -04006080 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
6081 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
6082 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
6083 iocbq->iocb.ulpContext);
6084 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
6085 command_type = OTHER_COMMAND;
6086 break;
James Smart4f774512009-05-22 14:52:35 -04006087 case CMD_XRI_ABORTED_CX:
6088 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
6089 /* words0-2 are all 0's no bde */
6090 /* word3 and word4 are rsvrd */
6091 wqe->words[3] = 0;
6092 wqe->words[4] = 0;
6093 /* word5 iocb=rsvd wge=did */
6094 /* There is no remote port id in the IOCB? */
6095 /* Let this fall through and fail */
6096 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
6097 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
6098 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
6099 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
6100 default:
6101 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6102 "2014 Invalid command 0x%x\n",
6103 iocbq->iocb.ulpCommand);
6104 return IOCB_ERROR;
6105 break;
6106
6107 }
6108 bf_set(lpfc_wqe_gen_xri, &wqe->generic, xritag);
6109 bf_set(lpfc_wqe_gen_request_tag, &wqe->generic, iocbq->iotag);
6110 wqe->generic.abort_tag = abort_tag;
6111 bf_set(lpfc_wqe_gen_cmd_type, &wqe->generic, command_type);
6112 bf_set(lpfc_wqe_gen_command, &wqe->generic, cmnd);
6113 bf_set(lpfc_wqe_gen_class, &wqe->generic, iocbq->iocb.ulpClass);
6114 bf_set(lpfc_wqe_gen_cq_id, &wqe->generic, LPFC_WQE_CQ_ID_DEFAULT);
6115
6116 return 0;
6117}
6118
6119/**
6120 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
6121 * @phba: Pointer to HBA context object.
6122 * @ring_number: SLI ring number to issue iocb on.
6123 * @piocb: Pointer to command iocb.
6124 * @flag: Flag indicating if this command can be put into txq.
6125 *
6126 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
6127 * an iocb command to an HBA with SLI-4 interface spec.
6128 *
6129 * This function is called with hbalock held. The function will return success
6130 * after it successfully submit the iocb to firmware or after adding to the
6131 * txq.
6132 **/
6133static int
6134__lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
6135 struct lpfc_iocbq *piocb, uint32_t flag)
6136{
6137 struct lpfc_sglq *sglq;
6138 uint16_t xritag;
6139 union lpfc_wqe wqe;
6140 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
James Smart4f774512009-05-22 14:52:35 -04006141
6142 if (piocb->sli4_xritag == NO_XRI) {
6143 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
James Smart6669f9b2009-10-02 15:16:45 -04006144 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
James Smart4f774512009-05-22 14:52:35 -04006145 sglq = NULL;
6146 else {
6147 sglq = __lpfc_sli_get_sglq(phba);
6148 if (!sglq)
6149 return IOCB_ERROR;
6150 piocb->sli4_xritag = sglq->sli4_xritag;
6151 }
6152 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
6153 sglq = NULL; /* These IO's already have an XRI and
6154 * a mapped sgl.
6155 */
6156 } else {
6157 /* This is a continuation of a commandi,(CX) so this
6158 * sglq is on the active list
6159 */
6160 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_xritag);
6161 if (!sglq)
6162 return IOCB_ERROR;
6163 }
6164
6165 if (sglq) {
6166 xritag = lpfc_sli4_bpl2sgl(phba, piocb, sglq);
6167 if (xritag != sglq->sli4_xritag)
6168 return IOCB_ERROR;
6169 }
6170
6171 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
6172 return IOCB_ERROR;
6173
James Smart341af102010-01-26 23:07:37 -05006174 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
6175 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
James Smart5ffc2662009-11-18 15:39:44 -05006176 /*
6177 * For FCP command IOCB, get a new WQ index to distribute
6178 * WQE across the WQsr. On the other hand, for abort IOCB,
6179 * it carries the same WQ index to the original command
6180 * IOCB.
6181 */
James Smart341af102010-01-26 23:07:37 -05006182 if (piocb->iocb_flag & LPFC_IO_FCP)
James Smart5ffc2662009-11-18 15:39:44 -05006183 piocb->fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba);
6184 if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx],
6185 &wqe))
James Smart4f774512009-05-22 14:52:35 -04006186 return IOCB_ERROR;
6187 } else {
6188 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
6189 return IOCB_ERROR;
6190 }
6191 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
6192
6193 return 0;
6194}
6195
6196/**
James Smart3772a992009-05-22 14:50:54 -04006197 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
6198 *
6199 * This routine wraps the actual lockless version for issusing IOCB function
6200 * pointer from the lpfc_hba struct.
6201 *
6202 * Return codes:
6203 * IOCB_ERROR - Error
6204 * IOCB_SUCCESS - Success
6205 * IOCB_BUSY - Busy
6206 **/
6207static inline int
6208__lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
6209 struct lpfc_iocbq *piocb, uint32_t flag)
6210{
6211 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
6212}
6213
6214/**
6215 * lpfc_sli_api_table_setup - Set up sli api fucntion jump table
6216 * @phba: The hba struct for which this call is being executed.
6217 * @dev_grp: The HBA PCI-Device group number.
6218 *
6219 * This routine sets up the SLI interface API function jump table in @phba
6220 * struct.
6221 * Returns: 0 - success, -ENODEV - failure.
6222 **/
6223int
6224lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6225{
6226
6227 switch (dev_grp) {
6228 case LPFC_PCI_DEV_LP:
6229 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
6230 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
6231 break;
James Smart4f774512009-05-22 14:52:35 -04006232 case LPFC_PCI_DEV_OC:
6233 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
6234 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
6235 break;
James Smart3772a992009-05-22 14:50:54 -04006236 default:
6237 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6238 "1419 Invalid HBA PCI-device group: 0x%x\n",
6239 dev_grp);
6240 return -ENODEV;
6241 break;
6242 }
6243 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
6244 return 0;
6245}
James Smart92d7f7b2007-06-17 19:56:38 -05006246
James Smarte59058c2008-08-24 21:49:00 -04006247/**
James Smart3621a712009-04-06 18:47:14 -04006248 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
James Smarte59058c2008-08-24 21:49:00 -04006249 * @phba: Pointer to HBA context object.
6250 * @pring: Pointer to driver SLI ring object.
6251 * @piocb: Pointer to command iocb.
6252 * @flag: Flag indicating if this command can be put into txq.
6253 *
6254 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
6255 * function. This function gets the hbalock and calls
6256 * __lpfc_sli_issue_iocb function and will return the error returned
6257 * by __lpfc_sli_issue_iocb function. This wrapper is used by
6258 * functions which do not hold hbalock.
6259 **/
James Smart92d7f7b2007-06-17 19:56:38 -05006260int
James Smart3772a992009-05-22 14:50:54 -04006261lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
James Smart92d7f7b2007-06-17 19:56:38 -05006262 struct lpfc_iocbq *piocb, uint32_t flag)
6263{
6264 unsigned long iflags;
6265 int rc;
6266
6267 spin_lock_irqsave(&phba->hbalock, iflags);
James Smart3772a992009-05-22 14:50:54 -04006268 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
James Smart92d7f7b2007-06-17 19:56:38 -05006269 spin_unlock_irqrestore(&phba->hbalock, iflags);
6270
6271 return rc;
6272}
6273
James Smarte59058c2008-08-24 21:49:00 -04006274/**
James Smart3621a712009-04-06 18:47:14 -04006275 * lpfc_extra_ring_setup - Extra ring setup function
James Smarte59058c2008-08-24 21:49:00 -04006276 * @phba: Pointer to HBA context object.
6277 *
6278 * This function is called while driver attaches with the
6279 * HBA to setup the extra ring. The extra ring is used
6280 * only when driver needs to support target mode functionality
6281 * or IP over FC functionalities.
6282 *
6283 * This function is called with no lock held.
6284 **/
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05006285static int
6286lpfc_extra_ring_setup( struct lpfc_hba *phba)
6287{
6288 struct lpfc_sli *psli;
6289 struct lpfc_sli_ring *pring;
6290
6291 psli = &phba->sli;
6292
6293 /* Adjust cmd/rsp ring iocb entries more evenly */
James Smarta4bc3372006-12-02 13:34:16 -05006294
6295 /* Take some away from the FCP ring */
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05006296 pring = &psli->ring[psli->fcp_ring];
6297 pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6298 pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6299 pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6300 pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
6301
James Smarta4bc3372006-12-02 13:34:16 -05006302 /* and give them to the extra ring */
6303 pring = &psli->ring[psli->extra_ring];
6304
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05006305 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6306 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6307 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6308 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
6309
6310 /* Setup default profile for this ring */
6311 pring->iotag_max = 4096;
6312 pring->num_mask = 1;
6313 pring->prt[0].profile = 0; /* Mask 0 */
James Smarta4bc3372006-12-02 13:34:16 -05006314 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
6315 pring->prt[0].type = phba->cfg_multi_ring_type;
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05006316 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
6317 return 0;
6318}
6319
James Smarte59058c2008-08-24 21:49:00 -04006320/**
James Smart3621a712009-04-06 18:47:14 -04006321 * lpfc_sli_async_event_handler - ASYNC iocb handler function
James Smarte59058c2008-08-24 21:49:00 -04006322 * @phba: Pointer to HBA context object.
6323 * @pring: Pointer to driver SLI ring object.
6324 * @iocbq: Pointer to iocb object.
6325 *
6326 * This function is called by the slow ring event handler
6327 * function when there is an ASYNC event iocb in the ring.
6328 * This function is called with no lock held.
6329 * Currently this function handles only temperature related
6330 * ASYNC events. The function decodes the temperature sensor
6331 * event message and posts events for the management applications.
6332 **/
James Smart98c9ea52007-10-27 13:37:33 -04006333static void
James Smart57127f12007-10-27 13:37:05 -04006334lpfc_sli_async_event_handler(struct lpfc_hba * phba,
6335 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
6336{
6337 IOCB_t *icmd;
6338 uint16_t evt_code;
6339 uint16_t temp;
6340 struct temp_event temp_event_data;
6341 struct Scsi_Host *shost;
James Smarta257bf92009-04-06 18:48:10 -04006342 uint32_t *iocb_w;
James Smart57127f12007-10-27 13:37:05 -04006343
6344 icmd = &iocbq->iocb;
6345 evt_code = icmd->un.asyncstat.evt_code;
6346 temp = icmd->ulpContext;
6347
6348 if ((evt_code != ASYNC_TEMP_WARN) &&
6349 (evt_code != ASYNC_TEMP_SAFE)) {
James Smarta257bf92009-04-06 18:48:10 -04006350 iocb_w = (uint32_t *) icmd;
James Smart57127f12007-10-27 13:37:05 -04006351 lpfc_printf_log(phba,
6352 KERN_ERR,
6353 LOG_SLI,
James Smart76bb24e2007-10-27 13:38:00 -04006354 "0346 Ring %d handler: unexpected ASYNC_STATUS"
James Smarte4e74272009-07-19 10:01:38 -04006355 " evt_code 0x%x\n"
James Smarta257bf92009-04-06 18:48:10 -04006356 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
6357 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
6358 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
6359 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
James Smart57127f12007-10-27 13:37:05 -04006360 pring->ringno,
James Smarta257bf92009-04-06 18:48:10 -04006361 icmd->un.asyncstat.evt_code,
6362 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
6363 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
6364 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
6365 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
6366
James Smart57127f12007-10-27 13:37:05 -04006367 return;
6368 }
6369 temp_event_data.data = (uint32_t)temp;
6370 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6371 if (evt_code == ASYNC_TEMP_WARN) {
6372 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
6373 lpfc_printf_log(phba,
James Smart09372822008-01-11 01:52:54 -05006374 KERN_ERR,
James Smart57127f12007-10-27 13:37:05 -04006375 LOG_TEMP,
James Smart76bb24e2007-10-27 13:38:00 -04006376 "0347 Adapter is very hot, please take "
James Smart57127f12007-10-27 13:37:05 -04006377 "corrective action. temperature : %d Celsius\n",
6378 temp);
6379 }
6380 if (evt_code == ASYNC_TEMP_SAFE) {
6381 temp_event_data.event_code = LPFC_NORMAL_TEMP;
6382 lpfc_printf_log(phba,
James Smart09372822008-01-11 01:52:54 -05006383 KERN_ERR,
James Smart57127f12007-10-27 13:37:05 -04006384 LOG_TEMP,
6385 "0340 Adapter temperature is OK now. "
6386 "temperature : %d Celsius\n",
6387 temp);
6388 }
6389
6390 /* Send temperature change event to applications */
6391 shost = lpfc_shost_from_vport(phba->pport);
6392 fc_host_post_vendor_event(shost, fc_get_event_number(),
6393 sizeof(temp_event_data), (char *) &temp_event_data,
James Smartddcc50f2008-12-04 22:38:46 -05006394 LPFC_NL_VENDOR_ID);
James Smart57127f12007-10-27 13:37:05 -04006395
6396}
6397
6398
James Smarte59058c2008-08-24 21:49:00 -04006399/**
James Smart3621a712009-04-06 18:47:14 -04006400 * lpfc_sli_setup - SLI ring setup function
James Smarte59058c2008-08-24 21:49:00 -04006401 * @phba: Pointer to HBA context object.
6402 *
6403 * lpfc_sli_setup sets up rings of the SLI interface with
6404 * number of iocbs per ring and iotags. This function is
6405 * called while driver attach to the HBA and before the
6406 * interrupts are enabled. So there is no need for locking.
6407 *
6408 * This function always returns 0.
6409 **/
dea31012005-04-17 16:05:31 -05006410int
6411lpfc_sli_setup(struct lpfc_hba *phba)
6412{
James Smarted957682007-06-17 19:56:37 -05006413 int i, totiocbsize = 0;
dea31012005-04-17 16:05:31 -05006414 struct lpfc_sli *psli = &phba->sli;
6415 struct lpfc_sli_ring *pring;
6416
6417 psli->num_rings = MAX_CONFIGURED_RINGS;
6418 psli->sli_flag = 0;
6419 psli->fcp_ring = LPFC_FCP_RING;
6420 psli->next_ring = LPFC_FCP_NEXT_RING;
James Smarta4bc3372006-12-02 13:34:16 -05006421 psli->extra_ring = LPFC_EXTRA_RING;
dea31012005-04-17 16:05:31 -05006422
James Bottomley604a3e32005-10-29 10:28:33 -05006423 psli->iocbq_lookup = NULL;
6424 psli->iocbq_lookup_len = 0;
6425 psli->last_iotag = 0;
6426
dea31012005-04-17 16:05:31 -05006427 for (i = 0; i < psli->num_rings; i++) {
6428 pring = &psli->ring[i];
6429 switch (i) {
6430 case LPFC_FCP_RING: /* ring 0 - FCP */
6431 /* numCiocb and numRiocb are used in config_port */
6432 pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
6433 pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
6434 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6435 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6436 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6437 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
James Smarted957682007-06-17 19:56:37 -05006438 pring->sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05006439 SLI3_IOCB_CMD_SIZE :
6440 SLI2_IOCB_CMD_SIZE;
James Smarted957682007-06-17 19:56:37 -05006441 pring->sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05006442 SLI3_IOCB_RSP_SIZE :
6443 SLI2_IOCB_RSP_SIZE;
dea31012005-04-17 16:05:31 -05006444 pring->iotag_ctr = 0;
6445 pring->iotag_max =
James Smart92d7f7b2007-06-17 19:56:38 -05006446 (phba->cfg_hba_queue_depth * 2);
dea31012005-04-17 16:05:31 -05006447 pring->fast_iotag = pring->iotag_max;
6448 pring->num_mask = 0;
6449 break;
James Smarta4bc3372006-12-02 13:34:16 -05006450 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
dea31012005-04-17 16:05:31 -05006451 /* numCiocb and numRiocb are used in config_port */
6452 pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
6453 pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
James Smarted957682007-06-17 19:56:37 -05006454 pring->sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05006455 SLI3_IOCB_CMD_SIZE :
6456 SLI2_IOCB_CMD_SIZE;
James Smarted957682007-06-17 19:56:37 -05006457 pring->sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05006458 SLI3_IOCB_RSP_SIZE :
6459 SLI2_IOCB_RSP_SIZE;
James Smart2e0fef82007-06-17 19:56:36 -05006460 pring->iotag_max = phba->cfg_hba_queue_depth;
dea31012005-04-17 16:05:31 -05006461 pring->num_mask = 0;
6462 break;
6463 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
6464 /* numCiocb and numRiocb are used in config_port */
6465 pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
6466 pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
James Smarted957682007-06-17 19:56:37 -05006467 pring->sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05006468 SLI3_IOCB_CMD_SIZE :
6469 SLI2_IOCB_CMD_SIZE;
James Smarted957682007-06-17 19:56:37 -05006470 pring->sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05006471 SLI3_IOCB_RSP_SIZE :
6472 SLI2_IOCB_RSP_SIZE;
dea31012005-04-17 16:05:31 -05006473 pring->fast_iotag = 0;
6474 pring->iotag_ctr = 0;
6475 pring->iotag_max = 4096;
James Smart57127f12007-10-27 13:37:05 -04006476 pring->lpfc_sli_rcv_async_status =
6477 lpfc_sli_async_event_handler;
James Smart6669f9b2009-10-02 15:16:45 -04006478 pring->num_mask = LPFC_MAX_RING_MASK;
dea31012005-04-17 16:05:31 -05006479 pring->prt[0].profile = 0; /* Mask 0 */
James Smart6a9c52c2009-10-02 15:16:51 -04006480 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
6481 pring->prt[0].type = FC_TYPE_ELS;
dea31012005-04-17 16:05:31 -05006482 pring->prt[0].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05006483 lpfc_els_unsol_event;
dea31012005-04-17 16:05:31 -05006484 pring->prt[1].profile = 0; /* Mask 1 */
James Smart6a9c52c2009-10-02 15:16:51 -04006485 pring->prt[1].rctl = FC_RCTL_ELS_REP;
6486 pring->prt[1].type = FC_TYPE_ELS;
dea31012005-04-17 16:05:31 -05006487 pring->prt[1].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05006488 lpfc_els_unsol_event;
dea31012005-04-17 16:05:31 -05006489 pring->prt[2].profile = 0; /* Mask 2 */
6490 /* NameServer Inquiry */
James Smart6a9c52c2009-10-02 15:16:51 -04006491 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
dea31012005-04-17 16:05:31 -05006492 /* NameServer */
James Smart6a9c52c2009-10-02 15:16:51 -04006493 pring->prt[2].type = FC_TYPE_CT;
dea31012005-04-17 16:05:31 -05006494 pring->prt[2].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05006495 lpfc_ct_unsol_event;
dea31012005-04-17 16:05:31 -05006496 pring->prt[3].profile = 0; /* Mask 3 */
6497 /* NameServer response */
James Smart6a9c52c2009-10-02 15:16:51 -04006498 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
dea31012005-04-17 16:05:31 -05006499 /* NameServer */
James Smart6a9c52c2009-10-02 15:16:51 -04006500 pring->prt[3].type = FC_TYPE_CT;
dea31012005-04-17 16:05:31 -05006501 pring->prt[3].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05006502 lpfc_ct_unsol_event;
James Smart6669f9b2009-10-02 15:16:45 -04006503 /* abort unsolicited sequence */
6504 pring->prt[4].profile = 0; /* Mask 4 */
6505 pring->prt[4].rctl = FC_RCTL_BA_ABTS;
6506 pring->prt[4].type = FC_TYPE_BLS;
6507 pring->prt[4].lpfc_sli_rcv_unsol_event =
6508 lpfc_sli4_ct_abort_unsol_event;
dea31012005-04-17 16:05:31 -05006509 break;
6510 }
James Smarted957682007-06-17 19:56:37 -05006511 totiocbsize += (pring->numCiocb * pring->sizeCiocb) +
James Smart92d7f7b2007-06-17 19:56:38 -05006512 (pring->numRiocb * pring->sizeRiocb);
dea31012005-04-17 16:05:31 -05006513 }
James Smarted957682007-06-17 19:56:37 -05006514 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
dea31012005-04-17 16:05:31 -05006515 /* Too many cmd / rsp ring entries in SLI2 SLIM */
James Smarte8b62012007-08-02 11:10:09 -04006516 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
6517 "SLI2 SLIM Data: x%x x%lx\n",
6518 phba->brd_no, totiocbsize,
6519 (unsigned long) MAX_SLIM_IOCB_SIZE);
dea31012005-04-17 16:05:31 -05006520 }
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05006521 if (phba->cfg_multi_ring_support == 2)
6522 lpfc_extra_ring_setup(phba);
dea31012005-04-17 16:05:31 -05006523
6524 return 0;
6525}
6526
James Smarte59058c2008-08-24 21:49:00 -04006527/**
James Smart3621a712009-04-06 18:47:14 -04006528 * lpfc_sli_queue_setup - Queue initialization function
James Smarte59058c2008-08-24 21:49:00 -04006529 * @phba: Pointer to HBA context object.
6530 *
6531 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
6532 * ring. This function also initializes ring indices of each ring.
6533 * This function is called during the initialization of the SLI
6534 * interface of an HBA.
6535 * This function is called with no lock held and always returns
6536 * 1.
6537 **/
dea31012005-04-17 16:05:31 -05006538int
James Smart2e0fef82007-06-17 19:56:36 -05006539lpfc_sli_queue_setup(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05006540{
6541 struct lpfc_sli *psli;
6542 struct lpfc_sli_ring *pring;
James Bottomley604a3e32005-10-29 10:28:33 -05006543 int i;
dea31012005-04-17 16:05:31 -05006544
6545 psli = &phba->sli;
James Smart2e0fef82007-06-17 19:56:36 -05006546 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05006547 INIT_LIST_HEAD(&psli->mboxq);
James Smart92d7f7b2007-06-17 19:56:38 -05006548 INIT_LIST_HEAD(&psli->mboxq_cmpl);
dea31012005-04-17 16:05:31 -05006549 /* Initialize list headers for txq and txcmplq as double linked lists */
6550 for (i = 0; i < psli->num_rings; i++) {
6551 pring = &psli->ring[i];
6552 pring->ringno = i;
6553 pring->next_cmdidx = 0;
6554 pring->local_getidx = 0;
6555 pring->cmdidx = 0;
6556 INIT_LIST_HEAD(&pring->txq);
6557 INIT_LIST_HEAD(&pring->txcmplq);
6558 INIT_LIST_HEAD(&pring->iocb_continueq);
James Smart9c2face2008-01-11 01:53:18 -05006559 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
dea31012005-04-17 16:05:31 -05006560 INIT_LIST_HEAD(&pring->postbufq);
dea31012005-04-17 16:05:31 -05006561 }
James Smart2e0fef82007-06-17 19:56:36 -05006562 spin_unlock_irq(&phba->hbalock);
6563 return 1;
dea31012005-04-17 16:05:31 -05006564}
6565
James Smarte59058c2008-08-24 21:49:00 -04006566/**
James Smart04c68492009-05-22 14:52:52 -04006567 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
6568 * @phba: Pointer to HBA context object.
6569 *
6570 * This routine flushes the mailbox command subsystem. It will unconditionally
6571 * flush all the mailbox commands in the three possible stages in the mailbox
6572 * command sub-system: pending mailbox command queue; the outstanding mailbox
6573 * command; and completed mailbox command queue. It is caller's responsibility
6574 * to make sure that the driver is in the proper state to flush the mailbox
6575 * command sub-system. Namely, the posting of mailbox commands into the
6576 * pending mailbox command queue from the various clients must be stopped;
6577 * either the HBA is in a state that it will never works on the outstanding
6578 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
6579 * mailbox command has been completed.
6580 **/
6581static void
6582lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
6583{
6584 LIST_HEAD(completions);
6585 struct lpfc_sli *psli = &phba->sli;
6586 LPFC_MBOXQ_t *pmb;
6587 unsigned long iflag;
6588
6589 /* Flush all the mailbox commands in the mbox system */
6590 spin_lock_irqsave(&phba->hbalock, iflag);
6591 /* The pending mailbox command queue */
6592 list_splice_init(&phba->sli.mboxq, &completions);
6593 /* The outstanding active mailbox command */
6594 if (psli->mbox_active) {
6595 list_add_tail(&psli->mbox_active->list, &completions);
6596 psli->mbox_active = NULL;
6597 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6598 }
6599 /* The completed mailbox command queue */
6600 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
6601 spin_unlock_irqrestore(&phba->hbalock, iflag);
6602
6603 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
6604 while (!list_empty(&completions)) {
6605 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
6606 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
6607 if (pmb->mbox_cmpl)
6608 pmb->mbox_cmpl(phba, pmb);
6609 }
6610}
6611
6612/**
James Smart3621a712009-04-06 18:47:14 -04006613 * lpfc_sli_host_down - Vport cleanup function
James Smarte59058c2008-08-24 21:49:00 -04006614 * @vport: Pointer to virtual port object.
6615 *
6616 * lpfc_sli_host_down is called to clean up the resources
6617 * associated with a vport before destroying virtual
6618 * port data structures.
6619 * This function does following operations:
6620 * - Free discovery resources associated with this virtual
6621 * port.
6622 * - Free iocbs associated with this virtual port in
6623 * the txq.
6624 * - Send abort for all iocb commands associated with this
6625 * vport in txcmplq.
6626 *
6627 * This function is called with no lock held and always returns 1.
6628 **/
dea31012005-04-17 16:05:31 -05006629int
James Smart92d7f7b2007-06-17 19:56:38 -05006630lpfc_sli_host_down(struct lpfc_vport *vport)
6631{
James Smart858c9f62007-06-17 19:56:39 -05006632 LIST_HEAD(completions);
James Smart92d7f7b2007-06-17 19:56:38 -05006633 struct lpfc_hba *phba = vport->phba;
6634 struct lpfc_sli *psli = &phba->sli;
6635 struct lpfc_sli_ring *pring;
6636 struct lpfc_iocbq *iocb, *next_iocb;
James Smart92d7f7b2007-06-17 19:56:38 -05006637 int i;
6638 unsigned long flags = 0;
6639 uint16_t prev_pring_flag;
6640
6641 lpfc_cleanup_discovery_resources(vport);
6642
6643 spin_lock_irqsave(&phba->hbalock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -05006644 for (i = 0; i < psli->num_rings; i++) {
6645 pring = &psli->ring[i];
6646 prev_pring_flag = pring->flag;
James Smart5e9d9b82008-06-14 22:52:53 -04006647 /* Only slow rings */
6648 if (pring->ringno == LPFC_ELS_RING) {
James Smart858c9f62007-06-17 19:56:39 -05006649 pring->flag |= LPFC_DEFERRED_RING_EVENT;
James Smart5e9d9b82008-06-14 22:52:53 -04006650 /* Set the lpfc data pending flag */
6651 set_bit(LPFC_DATA_READY, &phba->data_flags);
6652 }
James Smart92d7f7b2007-06-17 19:56:38 -05006653 /*
6654 * Error everything on the txq since these iocbs have not been
6655 * given to the FW yet.
6656 */
James Smart92d7f7b2007-06-17 19:56:38 -05006657 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
6658 if (iocb->vport != vport)
6659 continue;
James Smart858c9f62007-06-17 19:56:39 -05006660 list_move_tail(&iocb->list, &completions);
James Smart92d7f7b2007-06-17 19:56:38 -05006661 pring->txq_cnt--;
James Smart92d7f7b2007-06-17 19:56:38 -05006662 }
6663
6664 /* Next issue ABTS for everything on the txcmplq */
6665 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
6666 list) {
6667 if (iocb->vport != vport)
6668 continue;
6669 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
6670 }
6671
6672 pring->flag = prev_pring_flag;
6673 }
6674
6675 spin_unlock_irqrestore(&phba->hbalock, flags);
6676
James Smarta257bf92009-04-06 18:48:10 -04006677 /* Cancel all the IOCBs from the completions list */
6678 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
6679 IOERR_SLI_DOWN);
James Smart92d7f7b2007-06-17 19:56:38 -05006680 return 1;
6681}
6682
James Smarte59058c2008-08-24 21:49:00 -04006683/**
James Smart3621a712009-04-06 18:47:14 -04006684 * lpfc_sli_hba_down - Resource cleanup function for the HBA
James Smarte59058c2008-08-24 21:49:00 -04006685 * @phba: Pointer to HBA context object.
6686 *
6687 * This function cleans up all iocb, buffers, mailbox commands
6688 * while shutting down the HBA. This function is called with no
6689 * lock held and always returns 1.
6690 * This function does the following to cleanup driver resources:
6691 * - Free discovery resources for each virtual port
6692 * - Cleanup any pending fabric iocbs
6693 * - Iterate through the iocb txq and free each entry
6694 * in the list.
6695 * - Free up any buffer posted to the HBA
6696 * - Free mailbox commands in the mailbox queue.
6697 **/
James Smart92d7f7b2007-06-17 19:56:38 -05006698int
James Smart2e0fef82007-06-17 19:56:36 -05006699lpfc_sli_hba_down(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05006700{
James Smart2534ba72007-04-25 09:52:20 -04006701 LIST_HEAD(completions);
James Smart2e0fef82007-06-17 19:56:36 -05006702 struct lpfc_sli *psli = &phba->sli;
dea31012005-04-17 16:05:31 -05006703 struct lpfc_sli_ring *pring;
James Smart0ff10d42008-01-11 01:52:36 -05006704 struct lpfc_dmabuf *buf_ptr;
dea31012005-04-17 16:05:31 -05006705 unsigned long flags = 0;
James Smart04c68492009-05-22 14:52:52 -04006706 int i;
6707
6708 /* Shutdown the mailbox command sub-system */
6709 lpfc_sli_mbox_sys_shutdown(phba);
dea31012005-04-17 16:05:31 -05006710
dea31012005-04-17 16:05:31 -05006711 lpfc_hba_down_prep(phba);
6712
James Smart92d7f7b2007-06-17 19:56:38 -05006713 lpfc_fabric_abort_hba(phba);
6714
James Smart2e0fef82007-06-17 19:56:36 -05006715 spin_lock_irqsave(&phba->hbalock, flags);
dea31012005-04-17 16:05:31 -05006716 for (i = 0; i < psli->num_rings; i++) {
6717 pring = &psli->ring[i];
James Smart5e9d9b82008-06-14 22:52:53 -04006718 /* Only slow rings */
6719 if (pring->ringno == LPFC_ELS_RING) {
James Smart858c9f62007-06-17 19:56:39 -05006720 pring->flag |= LPFC_DEFERRED_RING_EVENT;
James Smart5e9d9b82008-06-14 22:52:53 -04006721 /* Set the lpfc data pending flag */
6722 set_bit(LPFC_DATA_READY, &phba->data_flags);
6723 }
dea31012005-04-17 16:05:31 -05006724
6725 /*
6726 * Error everything on the txq since these iocbs have not been
6727 * given to the FW yet.
6728 */
James Smart2534ba72007-04-25 09:52:20 -04006729 list_splice_init(&pring->txq, &completions);
dea31012005-04-17 16:05:31 -05006730 pring->txq_cnt = 0;
6731
dea31012005-04-17 16:05:31 -05006732 }
James Smart2e0fef82007-06-17 19:56:36 -05006733 spin_unlock_irqrestore(&phba->hbalock, flags);
dea31012005-04-17 16:05:31 -05006734
James Smarta257bf92009-04-06 18:48:10 -04006735 /* Cancel all the IOCBs from the completions list */
6736 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
6737 IOERR_SLI_DOWN);
James Smart2534ba72007-04-25 09:52:20 -04006738
James Smart0ff10d42008-01-11 01:52:36 -05006739 spin_lock_irqsave(&phba->hbalock, flags);
6740 list_splice_init(&phba->elsbuf, &completions);
6741 phba->elsbuf_cnt = 0;
6742 phba->elsbuf_prev_cnt = 0;
6743 spin_unlock_irqrestore(&phba->hbalock, flags);
6744
6745 while (!list_empty(&completions)) {
6746 list_remove_head(&completions, buf_ptr,
6747 struct lpfc_dmabuf, list);
6748 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
6749 kfree(buf_ptr);
6750 }
6751
dea31012005-04-17 16:05:31 -05006752 /* Return any active mbox cmds */
6753 del_timer_sync(&psli->mbox_tmo);
James Smart92d7f7b2007-06-17 19:56:38 -05006754
James Smartda0436e2009-05-22 14:51:39 -04006755 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -05006756 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
James Smartda0436e2009-05-22 14:51:39 -04006757 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -05006758
James Smartda0436e2009-05-22 14:51:39 -04006759 return 1;
6760}
James Smart92d7f7b2007-06-17 19:56:38 -05006761
James Smartda0436e2009-05-22 14:51:39 -04006762/**
6763 * lpfc_sli4_hba_down - PCI function resource cleanup for the SLI4 HBA
6764 * @phba: Pointer to HBA context object.
6765 *
6766 * This function cleans up all queues, iocb, buffers, mailbox commands while
6767 * shutting down the SLI4 HBA FCoE function. This function is called with no
6768 * lock held and always returns 1.
6769 *
6770 * This function does the following to cleanup driver FCoE function resources:
6771 * - Free discovery resources for each virtual port
6772 * - Cleanup any pending fabric iocbs
6773 * - Iterate through the iocb txq and free each entry in the list.
6774 * - Free up any buffer posted to the HBA.
6775 * - Clean up all the queue entries: WQ, RQ, MQ, EQ, CQ, etc.
6776 * - Free mailbox commands in the mailbox queue.
6777 **/
6778int
6779lpfc_sli4_hba_down(struct lpfc_hba *phba)
6780{
6781 /* Stop the SLI4 device port */
6782 lpfc_stop_port(phba);
6783
6784 /* Tear down the queues in the HBA */
6785 lpfc_sli4_queue_unset(phba);
6786
6787 /* unregister default FCFI from the HBA */
6788 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi);
6789
dea31012005-04-17 16:05:31 -05006790 return 1;
6791}
6792
James Smarte59058c2008-08-24 21:49:00 -04006793/**
James Smart3621a712009-04-06 18:47:14 -04006794 * lpfc_sli_pcimem_bcopy - SLI memory copy function
James Smarte59058c2008-08-24 21:49:00 -04006795 * @srcp: Source memory pointer.
6796 * @destp: Destination memory pointer.
6797 * @cnt: Number of words required to be copied.
6798 *
6799 * This function is used for copying data between driver memory
6800 * and the SLI memory. This function also changes the endianness
6801 * of each word if native endianness is different from SLI
6802 * endianness. This function can be called with or without
6803 * lock.
6804 **/
dea31012005-04-17 16:05:31 -05006805void
6806lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
6807{
6808 uint32_t *src = srcp;
6809 uint32_t *dest = destp;
6810 uint32_t ldata;
6811 int i;
6812
6813 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
6814 ldata = *src;
6815 ldata = le32_to_cpu(ldata);
6816 *dest = ldata;
6817 src++;
6818 dest++;
6819 }
6820}
6821
James Smarte59058c2008-08-24 21:49:00 -04006822
6823/**
James Smarta0c87cb2009-07-19 10:01:10 -04006824 * lpfc_sli_bemem_bcopy - SLI memory copy function
6825 * @srcp: Source memory pointer.
6826 * @destp: Destination memory pointer.
6827 * @cnt: Number of words required to be copied.
6828 *
6829 * This function is used for copying data between a data structure
6830 * with big endian representation to local endianness.
6831 * This function can be called with or without lock.
6832 **/
6833void
6834lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
6835{
6836 uint32_t *src = srcp;
6837 uint32_t *dest = destp;
6838 uint32_t ldata;
6839 int i;
6840
6841 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
6842 ldata = *src;
6843 ldata = be32_to_cpu(ldata);
6844 *dest = ldata;
6845 src++;
6846 dest++;
6847 }
6848}
6849
6850/**
James Smart3621a712009-04-06 18:47:14 -04006851 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
James Smarte59058c2008-08-24 21:49:00 -04006852 * @phba: Pointer to HBA context object.
6853 * @pring: Pointer to driver SLI ring object.
6854 * @mp: Pointer to driver buffer object.
6855 *
6856 * This function is called with no lock held.
6857 * It always return zero after adding the buffer to the postbufq
6858 * buffer list.
6859 **/
dea31012005-04-17 16:05:31 -05006860int
James Smart2e0fef82007-06-17 19:56:36 -05006861lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
6862 struct lpfc_dmabuf *mp)
dea31012005-04-17 16:05:31 -05006863{
6864 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
6865 later */
James Smart2e0fef82007-06-17 19:56:36 -05006866 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05006867 list_add_tail(&mp->list, &pring->postbufq);
dea31012005-04-17 16:05:31 -05006868 pring->postbufq_cnt++;
James Smart2e0fef82007-06-17 19:56:36 -05006869 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05006870 return 0;
6871}
6872
James Smarte59058c2008-08-24 21:49:00 -04006873/**
James Smart3621a712009-04-06 18:47:14 -04006874 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
James Smarte59058c2008-08-24 21:49:00 -04006875 * @phba: Pointer to HBA context object.
6876 *
6877 * When HBQ is enabled, buffers are searched based on tags. This function
6878 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
6879 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
6880 * does not conflict with tags of buffer posted for unsolicited events.
6881 * The function returns the allocated tag. The function is called with
6882 * no locks held.
6883 **/
James Smart76bb24e2007-10-27 13:38:00 -04006884uint32_t
6885lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
6886{
6887 spin_lock_irq(&phba->hbalock);
6888 phba->buffer_tag_count++;
6889 /*
6890 * Always set the QUE_BUFTAG_BIT to distiguish between
6891 * a tag assigned by HBQ.
6892 */
6893 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
6894 spin_unlock_irq(&phba->hbalock);
6895 return phba->buffer_tag_count;
6896}
6897
James Smarte59058c2008-08-24 21:49:00 -04006898/**
James Smart3621a712009-04-06 18:47:14 -04006899 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
James Smarte59058c2008-08-24 21:49:00 -04006900 * @phba: Pointer to HBA context object.
6901 * @pring: Pointer to driver SLI ring object.
6902 * @tag: Buffer tag.
6903 *
6904 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
6905 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
6906 * iocb is posted to the response ring with the tag of the buffer.
6907 * This function searches the pring->postbufq list using the tag
6908 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
6909 * iocb. If the buffer is found then lpfc_dmabuf object of the
6910 * buffer is returned to the caller else NULL is returned.
6911 * This function is called with no lock held.
6912 **/
James Smart76bb24e2007-10-27 13:38:00 -04006913struct lpfc_dmabuf *
6914lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
6915 uint32_t tag)
6916{
6917 struct lpfc_dmabuf *mp, *next_mp;
6918 struct list_head *slp = &pring->postbufq;
6919
6920 /* Search postbufq, from the begining, looking for a match on tag */
6921 spin_lock_irq(&phba->hbalock);
6922 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
6923 if (mp->buffer_tag == tag) {
6924 list_del_init(&mp->list);
6925 pring->postbufq_cnt--;
6926 spin_unlock_irq(&phba->hbalock);
6927 return mp;
6928 }
6929 }
6930
6931 spin_unlock_irq(&phba->hbalock);
6932 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -04006933 "0402 Cannot find virtual addr for buffer tag on "
James Smart76bb24e2007-10-27 13:38:00 -04006934 "ring %d Data x%lx x%p x%p x%x\n",
6935 pring->ringno, (unsigned long) tag,
6936 slp->next, slp->prev, pring->postbufq_cnt);
6937
6938 return NULL;
6939}
dea31012005-04-17 16:05:31 -05006940
James Smarte59058c2008-08-24 21:49:00 -04006941/**
James Smart3621a712009-04-06 18:47:14 -04006942 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
James Smarte59058c2008-08-24 21:49:00 -04006943 * @phba: Pointer to HBA context object.
6944 * @pring: Pointer to driver SLI ring object.
6945 * @phys: DMA address of the buffer.
6946 *
6947 * This function searches the buffer list using the dma_address
6948 * of unsolicited event to find the driver's lpfc_dmabuf object
6949 * corresponding to the dma_address. The function returns the
6950 * lpfc_dmabuf object if a buffer is found else it returns NULL.
6951 * This function is called by the ct and els unsolicited event
6952 * handlers to get the buffer associated with the unsolicited
6953 * event.
6954 *
6955 * This function is called with no lock held.
6956 **/
dea31012005-04-17 16:05:31 -05006957struct lpfc_dmabuf *
6958lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
6959 dma_addr_t phys)
6960{
6961 struct lpfc_dmabuf *mp, *next_mp;
6962 struct list_head *slp = &pring->postbufq;
6963
6964 /* Search postbufq, from the begining, looking for a match on phys */
James Smart2e0fef82007-06-17 19:56:36 -05006965 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05006966 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
6967 if (mp->phys == phys) {
6968 list_del_init(&mp->list);
6969 pring->postbufq_cnt--;
James Smart2e0fef82007-06-17 19:56:36 -05006970 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05006971 return mp;
6972 }
6973 }
6974
James Smart2e0fef82007-06-17 19:56:36 -05006975 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05006976 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04006977 "0410 Cannot find virtual addr for mapped buf on "
dea31012005-04-17 16:05:31 -05006978 "ring %d Data x%llx x%p x%p x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04006979 pring->ringno, (unsigned long long)phys,
dea31012005-04-17 16:05:31 -05006980 slp->next, slp->prev, pring->postbufq_cnt);
6981 return NULL;
6982}
6983
James Smarte59058c2008-08-24 21:49:00 -04006984/**
James Smart3621a712009-04-06 18:47:14 -04006985 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
James Smarte59058c2008-08-24 21:49:00 -04006986 * @phba: Pointer to HBA context object.
6987 * @cmdiocb: Pointer to driver command iocb object.
6988 * @rspiocb: Pointer to driver response iocb object.
6989 *
6990 * This function is the completion handler for the abort iocbs for
6991 * ELS commands. This function is called from the ELS ring event
6992 * handler with no lock held. This function frees memory resources
6993 * associated with the abort iocb.
6994 **/
dea31012005-04-17 16:05:31 -05006995static void
James Smart2e0fef82007-06-17 19:56:36 -05006996lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
6997 struct lpfc_iocbq *rspiocb)
dea31012005-04-17 16:05:31 -05006998{
James Smart2e0fef82007-06-17 19:56:36 -05006999 IOCB_t *irsp = &rspiocb->iocb;
James Smart2680eea2007-04-25 09:52:55 -04007000 uint16_t abort_iotag, abort_context;
James Smart92d7f7b2007-06-17 19:56:38 -05007001 struct lpfc_iocbq *abort_iocb;
James Smart2680eea2007-04-25 09:52:55 -04007002 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
7003
7004 abort_iocb = NULL;
James Smart2680eea2007-04-25 09:52:55 -04007005
7006 if (irsp->ulpStatus) {
7007 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
7008 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
7009
James Smart2e0fef82007-06-17 19:56:36 -05007010 spin_lock_irq(&phba->hbalock);
James Smart45ed1192009-10-02 15:17:02 -04007011 if (phba->sli_rev < LPFC_SLI_REV4) {
7012 if (abort_iotag != 0 &&
7013 abort_iotag <= phba->sli.last_iotag)
7014 abort_iocb =
7015 phba->sli.iocbq_lookup[abort_iotag];
7016 } else
7017 /* For sli4 the abort_tag is the XRI,
7018 * so the abort routine puts the iotag of the iocb
7019 * being aborted in the context field of the abort
7020 * IOCB.
7021 */
7022 abort_iocb = phba->sli.iocbq_lookup[abort_context];
James Smart2680eea2007-04-25 09:52:55 -04007023
James Smart92d7f7b2007-06-17 19:56:38 -05007024 lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04007025 "0327 Cannot abort els iocb %p "
James Smart92d7f7b2007-06-17 19:56:38 -05007026 "with tag %x context %x, abort status %x, "
7027 "abort code %x\n",
James Smarte8b62012007-08-02 11:10:09 -04007028 abort_iocb, abort_iotag, abort_context,
7029 irsp->ulpStatus, irsp->un.ulpWord[4]);
James Smart2680eea2007-04-25 09:52:55 -04007030
7031 /*
James Smart58da1ff2008-04-07 10:15:56 -04007032 * If the iocb is not found in Firmware queue the iocb
7033 * might have completed already. Do not free it again.
7034 */
James Smart9b379602008-04-07 10:16:00 -04007035 if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
James Smart45ed1192009-10-02 15:17:02 -04007036 if (irsp->un.ulpWord[4] != IOERR_NO_XRI) {
7037 spin_unlock_irq(&phba->hbalock);
7038 lpfc_sli_release_iocbq(phba, cmdiocb);
7039 return;
7040 }
7041 /* For SLI4 the ulpContext field for abort IOCB
7042 * holds the iotag of the IOCB being aborted so
7043 * the local abort_context needs to be reset to
7044 * match the aborted IOCBs ulpContext.
7045 */
7046 if (abort_iocb && phba->sli_rev == LPFC_SLI_REV4)
7047 abort_context = abort_iocb->iocb.ulpContext;
James Smart58da1ff2008-04-07 10:15:56 -04007048 }
7049 /*
James Smart2680eea2007-04-25 09:52:55 -04007050 * make sure we have the right iocbq before taking it
7051 * off the txcmplq and try to call completion routine.
7052 */
James Smart2e0fef82007-06-17 19:56:36 -05007053 if (!abort_iocb ||
7054 abort_iocb->iocb.ulpContext != abort_context ||
7055 (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0)
7056 spin_unlock_irq(&phba->hbalock);
James Smart341af102010-01-26 23:07:37 -05007057 else if (phba->sli_rev < LPFC_SLI_REV4) {
7058 /*
7059 * leave the SLI4 aborted command on the txcmplq
7060 * list and the command complete WCQE's XB bit
7061 * will tell whether the SGL (XRI) can be released
7062 * immediately or to the aborted SGL list for the
7063 * following abort XRI from the HBA.
7064 */
James Smart92d7f7b2007-06-17 19:56:38 -05007065 list_del_init(&abort_iocb->list);
James Smart2680eea2007-04-25 09:52:55 -04007066 pring->txcmplq_cnt--;
James Smart2e0fef82007-06-17 19:56:36 -05007067 spin_unlock_irq(&phba->hbalock);
James Smart2680eea2007-04-25 09:52:55 -04007068
James Smart0ff10d42008-01-11 01:52:36 -05007069 /* Firmware could still be in progress of DMAing
7070 * payload, so don't free data buffer till after
7071 * a hbeat.
7072 */
James Smart341af102010-01-26 23:07:37 -05007073 spin_lock_irq(&phba->hbalock);
James Smart0ff10d42008-01-11 01:52:36 -05007074 abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE;
James Smart92d7f7b2007-06-17 19:56:38 -05007075 abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED;
James Smart341af102010-01-26 23:07:37 -05007076 spin_unlock_irq(&phba->hbalock);
7077
James Smart92d7f7b2007-06-17 19:56:38 -05007078 abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
James Smart341af102010-01-26 23:07:37 -05007079 abort_iocb->iocb.un.ulpWord[4] = IOERR_ABORT_REQUESTED;
James Smart92d7f7b2007-06-17 19:56:38 -05007080 (abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb);
James Smart2680eea2007-04-25 09:52:55 -04007081 }
7082 }
7083
James Bottomley604a3e32005-10-29 10:28:33 -05007084 lpfc_sli_release_iocbq(phba, cmdiocb);
dea31012005-04-17 16:05:31 -05007085 return;
7086}
7087
James Smarte59058c2008-08-24 21:49:00 -04007088/**
James Smart3621a712009-04-06 18:47:14 -04007089 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
James Smarte59058c2008-08-24 21:49:00 -04007090 * @phba: Pointer to HBA context object.
7091 * @cmdiocb: Pointer to driver command iocb object.
7092 * @rspiocb: Pointer to driver response iocb object.
7093 *
7094 * The function is called from SLI ring event handler with no
7095 * lock held. This function is the completion handler for ELS commands
7096 * which are aborted. The function frees memory resources used for
7097 * the aborted ELS commands.
7098 **/
James Smart92d7f7b2007-06-17 19:56:38 -05007099static void
7100lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
7101 struct lpfc_iocbq *rspiocb)
7102{
7103 IOCB_t *irsp = &rspiocb->iocb;
7104
7105 /* ELS cmd tag <ulpIoTag> completes */
7106 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
James Smartd7c255b2008-08-24 21:50:00 -04007107 "0139 Ignoring ELS cmd tag x%x completion Data: "
James Smart92d7f7b2007-06-17 19:56:38 -05007108 "x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04007109 irsp->ulpIoTag, irsp->ulpStatus,
James Smart92d7f7b2007-06-17 19:56:38 -05007110 irsp->un.ulpWord[4], irsp->ulpTimeout);
James Smart858c9f62007-06-17 19:56:39 -05007111 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
7112 lpfc_ct_free_iocb(phba, cmdiocb);
7113 else
7114 lpfc_els_free_iocb(phba, cmdiocb);
James Smart92d7f7b2007-06-17 19:56:38 -05007115 return;
7116}
7117
James Smarte59058c2008-08-24 21:49:00 -04007118/**
James Smart3621a712009-04-06 18:47:14 -04007119 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
James Smarte59058c2008-08-24 21:49:00 -04007120 * @phba: Pointer to HBA context object.
7121 * @pring: Pointer to driver SLI ring object.
7122 * @cmdiocb: Pointer to driver command iocb object.
7123 *
7124 * This function issues an abort iocb for the provided command
7125 * iocb. This function is called with hbalock held.
7126 * The function returns 0 when it fails due to memory allocation
7127 * failure or when the command iocb is an abort request.
7128 **/
dea31012005-04-17 16:05:31 -05007129int
James Smart2e0fef82007-06-17 19:56:36 -05007130lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7131 struct lpfc_iocbq *cmdiocb)
dea31012005-04-17 16:05:31 -05007132{
James Smart2e0fef82007-06-17 19:56:36 -05007133 struct lpfc_vport *vport = cmdiocb->vport;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007134 struct lpfc_iocbq *abtsiocbp;
dea31012005-04-17 16:05:31 -05007135 IOCB_t *icmd = NULL;
7136 IOCB_t *iabt = NULL;
James Smart07951072007-04-25 09:51:38 -04007137 int retval = IOCB_ERROR;
7138
James Smart92d7f7b2007-06-17 19:56:38 -05007139 /*
7140 * There are certain command types we don't want to abort. And we
7141 * don't want to abort commands that are already in the process of
7142 * being aborted.
James Smart07951072007-04-25 09:51:38 -04007143 */
7144 icmd = &cmdiocb->iocb;
James Smart2e0fef82007-06-17 19:56:36 -05007145 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
James Smart92d7f7b2007-06-17 19:56:38 -05007146 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
7147 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
James Smart07951072007-04-25 09:51:38 -04007148 return 0;
7149
James Smart858c9f62007-06-17 19:56:39 -05007150 /* If we're unloading, don't abort iocb on the ELS ring, but change the
7151 * callback so that nothing happens when it finishes.
James Smart07951072007-04-25 09:51:38 -04007152 */
James Smart858c9f62007-06-17 19:56:39 -05007153 if ((vport->load_flag & FC_UNLOADING) &&
7154 (pring->ringno == LPFC_ELS_RING)) {
James Smart92d7f7b2007-06-17 19:56:38 -05007155 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
7156 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
7157 else
7158 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
James Smart07951072007-04-25 09:51:38 -04007159 goto abort_iotag_exit;
James Smart92d7f7b2007-06-17 19:56:38 -05007160 }
dea31012005-04-17 16:05:31 -05007161
7162 /* issue ABTS for this IOCB based on iotag */
James Smart92d7f7b2007-06-17 19:56:38 -05007163 abtsiocbp = __lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05007164 if (abtsiocbp == NULL)
7165 return 0;
dea31012005-04-17 16:05:31 -05007166
James Smart07951072007-04-25 09:51:38 -04007167 /* This signals the response to set the correct status
James Smart341af102010-01-26 23:07:37 -05007168 * before calling the completion handler
James Smart07951072007-04-25 09:51:38 -04007169 */
7170 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
7171
dea31012005-04-17 16:05:31 -05007172 iabt = &abtsiocbp->iocb;
James Smart07951072007-04-25 09:51:38 -04007173 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
7174 iabt->un.acxri.abortContextTag = icmd->ulpContext;
James Smart45ed1192009-10-02 15:17:02 -04007175 if (phba->sli_rev == LPFC_SLI_REV4) {
James Smartda0436e2009-05-22 14:51:39 -04007176 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
James Smart45ed1192009-10-02 15:17:02 -04007177 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
7178 }
James Smartda0436e2009-05-22 14:51:39 -04007179 else
7180 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
dea31012005-04-17 16:05:31 -05007181 iabt->ulpLe = 1;
James Smart07951072007-04-25 09:51:38 -04007182 iabt->ulpClass = icmd->ulpClass;
dea31012005-04-17 16:05:31 -05007183
James Smart5ffc2662009-11-18 15:39:44 -05007184 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7185 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
James Smart341af102010-01-26 23:07:37 -05007186 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
7187 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
James Smart5ffc2662009-11-18 15:39:44 -05007188
James Smart2e0fef82007-06-17 19:56:36 -05007189 if (phba->link_state >= LPFC_LINK_UP)
James Smart07951072007-04-25 09:51:38 -04007190 iabt->ulpCommand = CMD_ABORT_XRI_CN;
7191 else
7192 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
7193
7194 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
James Smart5b8bd0c2007-04-25 09:52:49 -04007195
James Smarte8b62012007-08-02 11:10:09 -04007196 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
7197 "0339 Abort xri x%x, original iotag x%x, "
7198 "abort cmd iotag x%x\n",
7199 iabt->un.acxri.abortContextTag,
7200 iabt->un.acxri.abortIoTag, abtsiocbp->iotag);
James Smartda0436e2009-05-22 14:51:39 -04007201 retval = __lpfc_sli_issue_iocb(phba, pring->ringno, abtsiocbp, 0);
James Smart07951072007-04-25 09:51:38 -04007202
James Smartd7c255b2008-08-24 21:50:00 -04007203 if (retval)
7204 __lpfc_sli_release_iocbq(phba, abtsiocbp);
James Smart07951072007-04-25 09:51:38 -04007205abort_iotag_exit:
James Smart2e0fef82007-06-17 19:56:36 -05007206 /*
7207 * Caller to this routine should check for IOCB_ERROR
7208 * and handle it properly. This routine no longer removes
7209 * iocb off txcmplq and call compl in case of IOCB_ERROR.
James Smart07951072007-04-25 09:51:38 -04007210 */
James Smart2e0fef82007-06-17 19:56:36 -05007211 return retval;
dea31012005-04-17 16:05:31 -05007212}
7213
James Smarte59058c2008-08-24 21:49:00 -04007214/**
James Smart3621a712009-04-06 18:47:14 -04007215 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
James Smarte59058c2008-08-24 21:49:00 -04007216 * @iocbq: Pointer to driver iocb object.
7217 * @vport: Pointer to driver virtual port object.
7218 * @tgt_id: SCSI ID of the target.
7219 * @lun_id: LUN ID of the scsi device.
7220 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
7221 *
James Smart3621a712009-04-06 18:47:14 -04007222 * This function acts as an iocb filter for functions which abort or count
James Smarte59058c2008-08-24 21:49:00 -04007223 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
7224 * 0 if the filtering criteria is met for the given iocb and will return
7225 * 1 if the filtering criteria is not met.
7226 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
7227 * given iocb is for the SCSI device specified by vport, tgt_id and
7228 * lun_id parameter.
7229 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
7230 * given iocb is for the SCSI target specified by vport and tgt_id
7231 * parameters.
7232 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
7233 * given iocb is for the SCSI host associated with the given vport.
7234 * This function is called with no locks held.
7235 **/
dea31012005-04-17 16:05:31 -05007236static int
James Smart51ef4c22007-08-02 11:10:31 -04007237lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
7238 uint16_t tgt_id, uint64_t lun_id,
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007239 lpfc_ctx_cmd ctx_cmd)
dea31012005-04-17 16:05:31 -05007240{
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007241 struct lpfc_scsi_buf *lpfc_cmd;
dea31012005-04-17 16:05:31 -05007242 int rc = 1;
7243
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007244 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
7245 return rc;
7246
James Smart51ef4c22007-08-02 11:10:31 -04007247 if (iocbq->vport != vport)
7248 return rc;
7249
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007250 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007251
James Smart495a7142008-06-14 22:52:59 -04007252 if (lpfc_cmd->pCmd == NULL)
dea31012005-04-17 16:05:31 -05007253 return rc;
7254
7255 switch (ctx_cmd) {
7256 case LPFC_CTX_LUN:
James Smart495a7142008-06-14 22:52:59 -04007257 if ((lpfc_cmd->rdata->pnode) &&
7258 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
7259 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
dea31012005-04-17 16:05:31 -05007260 rc = 0;
7261 break;
7262 case LPFC_CTX_TGT:
James Smart495a7142008-06-14 22:52:59 -04007263 if ((lpfc_cmd->rdata->pnode) &&
7264 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
dea31012005-04-17 16:05:31 -05007265 rc = 0;
7266 break;
dea31012005-04-17 16:05:31 -05007267 case LPFC_CTX_HOST:
7268 rc = 0;
7269 break;
7270 default:
7271 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -07007272 __func__, ctx_cmd);
dea31012005-04-17 16:05:31 -05007273 break;
7274 }
7275
7276 return rc;
7277}
7278
James Smarte59058c2008-08-24 21:49:00 -04007279/**
James Smart3621a712009-04-06 18:47:14 -04007280 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
James Smarte59058c2008-08-24 21:49:00 -04007281 * @vport: Pointer to virtual port.
7282 * @tgt_id: SCSI ID of the target.
7283 * @lun_id: LUN ID of the scsi device.
7284 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7285 *
7286 * This function returns number of FCP commands pending for the vport.
7287 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
7288 * commands pending on the vport associated with SCSI device specified
7289 * by tgt_id and lun_id parameters.
7290 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
7291 * commands pending on the vport associated with SCSI target specified
7292 * by tgt_id parameter.
7293 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
7294 * commands pending on the vport.
7295 * This function returns the number of iocbs which satisfy the filter.
7296 * This function is called without any lock held.
7297 **/
dea31012005-04-17 16:05:31 -05007298int
James Smart51ef4c22007-08-02 11:10:31 -04007299lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
7300 lpfc_ctx_cmd ctx_cmd)
dea31012005-04-17 16:05:31 -05007301{
James Smart51ef4c22007-08-02 11:10:31 -04007302 struct lpfc_hba *phba = vport->phba;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007303 struct lpfc_iocbq *iocbq;
7304 int sum, i;
dea31012005-04-17 16:05:31 -05007305
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007306 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
7307 iocbq = phba->sli.iocbq_lookup[i];
dea31012005-04-17 16:05:31 -05007308
James Smart51ef4c22007-08-02 11:10:31 -04007309 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
7310 ctx_cmd) == 0)
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007311 sum++;
dea31012005-04-17 16:05:31 -05007312 }
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007313
dea31012005-04-17 16:05:31 -05007314 return sum;
7315}
7316
James Smarte59058c2008-08-24 21:49:00 -04007317/**
James Smart3621a712009-04-06 18:47:14 -04007318 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
James Smarte59058c2008-08-24 21:49:00 -04007319 * @phba: Pointer to HBA context object
7320 * @cmdiocb: Pointer to command iocb object.
7321 * @rspiocb: Pointer to response iocb object.
7322 *
7323 * This function is called when an aborted FCP iocb completes. This
7324 * function is called by the ring event handler with no lock held.
7325 * This function frees the iocb.
7326 **/
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04007327void
James Smart2e0fef82007-06-17 19:56:36 -05007328lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
7329 struct lpfc_iocbq *rspiocb)
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04007330{
James Bottomley604a3e32005-10-29 10:28:33 -05007331 lpfc_sli_release_iocbq(phba, cmdiocb);
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04007332 return;
7333}
7334
James Smarte59058c2008-08-24 21:49:00 -04007335/**
James Smart3621a712009-04-06 18:47:14 -04007336 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
James Smarte59058c2008-08-24 21:49:00 -04007337 * @vport: Pointer to virtual port.
7338 * @pring: Pointer to driver SLI ring object.
7339 * @tgt_id: SCSI ID of the target.
7340 * @lun_id: LUN ID of the scsi device.
7341 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7342 *
7343 * This function sends an abort command for every SCSI command
7344 * associated with the given virtual port pending on the ring
7345 * filtered by lpfc_sli_validate_fcp_iocb function.
7346 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
7347 * FCP iocbs associated with lun specified by tgt_id and lun_id
7348 * parameters
7349 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
7350 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
7351 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
7352 * FCP iocbs associated with virtual port.
7353 * This function returns number of iocbs it failed to abort.
7354 * This function is called with no locks held.
7355 **/
dea31012005-04-17 16:05:31 -05007356int
James Smart51ef4c22007-08-02 11:10:31 -04007357lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
7358 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
dea31012005-04-17 16:05:31 -05007359{
James Smart51ef4c22007-08-02 11:10:31 -04007360 struct lpfc_hba *phba = vport->phba;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007361 struct lpfc_iocbq *iocbq;
7362 struct lpfc_iocbq *abtsiocb;
dea31012005-04-17 16:05:31 -05007363 IOCB_t *cmd = NULL;
dea31012005-04-17 16:05:31 -05007364 int errcnt = 0, ret_val = 0;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007365 int i;
dea31012005-04-17 16:05:31 -05007366
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007367 for (i = 1; i <= phba->sli.last_iotag; i++) {
7368 iocbq = phba->sli.iocbq_lookup[i];
dea31012005-04-17 16:05:31 -05007369
James Smart51ef4c22007-08-02 11:10:31 -04007370 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
James Smart2e0fef82007-06-17 19:56:36 -05007371 abort_cmd) != 0)
dea31012005-04-17 16:05:31 -05007372 continue;
7373
7374 /* issue ABTS for this IOCB based on iotag */
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007375 abtsiocb = lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05007376 if (abtsiocb == NULL) {
7377 errcnt++;
7378 continue;
7379 }
dea31012005-04-17 16:05:31 -05007380
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007381 cmd = &iocbq->iocb;
dea31012005-04-17 16:05:31 -05007382 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
7383 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
James Smartda0436e2009-05-22 14:51:39 -04007384 if (phba->sli_rev == LPFC_SLI_REV4)
7385 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
7386 else
7387 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
dea31012005-04-17 16:05:31 -05007388 abtsiocb->iocb.ulpLe = 1;
7389 abtsiocb->iocb.ulpClass = cmd->ulpClass;
James Smart2e0fef82007-06-17 19:56:36 -05007390 abtsiocb->vport = phba->pport;
dea31012005-04-17 16:05:31 -05007391
James Smart5ffc2662009-11-18 15:39:44 -05007392 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7393 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
James Smart341af102010-01-26 23:07:37 -05007394 if (iocbq->iocb_flag & LPFC_IO_FCP)
7395 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
James Smart5ffc2662009-11-18 15:39:44 -05007396
James Smart2e0fef82007-06-17 19:56:36 -05007397 if (lpfc_is_link_up(phba))
dea31012005-04-17 16:05:31 -05007398 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
7399 else
7400 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
7401
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04007402 /* Setup callback routine and issue the command. */
7403 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
James Smartda0436e2009-05-22 14:51:39 -04007404 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
7405 abtsiocb, 0);
dea31012005-04-17 16:05:31 -05007406 if (ret_val == IOCB_ERROR) {
James Bottomley604a3e32005-10-29 10:28:33 -05007407 lpfc_sli_release_iocbq(phba, abtsiocb);
dea31012005-04-17 16:05:31 -05007408 errcnt++;
7409 continue;
7410 }
7411 }
7412
7413 return errcnt;
7414}
7415
James Smarte59058c2008-08-24 21:49:00 -04007416/**
James Smart3621a712009-04-06 18:47:14 -04007417 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
James Smarte59058c2008-08-24 21:49:00 -04007418 * @phba: Pointer to HBA context object.
7419 * @cmdiocbq: Pointer to command iocb.
7420 * @rspiocbq: Pointer to response iocb.
7421 *
7422 * This function is the completion handler for iocbs issued using
7423 * lpfc_sli_issue_iocb_wait function. This function is called by the
7424 * ring event handler function without any lock held. This function
7425 * can be called from both worker thread context and interrupt
7426 * context. This function also can be called from other thread which
7427 * cleans up the SLI layer objects.
7428 * This function copy the contents of the response iocb to the
7429 * response iocb memory object provided by the caller of
7430 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
7431 * sleeps for the iocb completion.
7432 **/
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007433static void
7434lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
7435 struct lpfc_iocbq *cmdiocbq,
7436 struct lpfc_iocbq *rspiocbq)
dea31012005-04-17 16:05:31 -05007437{
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007438 wait_queue_head_t *pdone_q;
7439 unsigned long iflags;
dea31012005-04-17 16:05:31 -05007440
James Smart2e0fef82007-06-17 19:56:36 -05007441 spin_lock_irqsave(&phba->hbalock, iflags);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007442 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
7443 if (cmdiocbq->context2 && rspiocbq)
7444 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
7445 &rspiocbq->iocb, sizeof(IOCB_t));
7446
7447 pdone_q = cmdiocbq->context_un.wait_queue;
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007448 if (pdone_q)
7449 wake_up(pdone_q);
James Smart858c9f62007-06-17 19:56:39 -05007450 spin_unlock_irqrestore(&phba->hbalock, iflags);
dea31012005-04-17 16:05:31 -05007451 return;
7452}
7453
James Smarte59058c2008-08-24 21:49:00 -04007454/**
James Smartd11e31d2009-06-10 17:23:06 -04007455 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
7456 * @phba: Pointer to HBA context object..
7457 * @piocbq: Pointer to command iocb.
7458 * @flag: Flag to test.
7459 *
7460 * This routine grabs the hbalock and then test the iocb_flag to
7461 * see if the passed in flag is set.
7462 * Returns:
7463 * 1 if flag is set.
7464 * 0 if flag is not set.
7465 **/
7466static int
7467lpfc_chk_iocb_flg(struct lpfc_hba *phba,
7468 struct lpfc_iocbq *piocbq, uint32_t flag)
7469{
7470 unsigned long iflags;
7471 int ret;
7472
7473 spin_lock_irqsave(&phba->hbalock, iflags);
7474 ret = piocbq->iocb_flag & flag;
7475 spin_unlock_irqrestore(&phba->hbalock, iflags);
7476 return ret;
7477
7478}
7479
7480/**
James Smart3621a712009-04-06 18:47:14 -04007481 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
James Smarte59058c2008-08-24 21:49:00 -04007482 * @phba: Pointer to HBA context object..
7483 * @pring: Pointer to sli ring.
7484 * @piocb: Pointer to command iocb.
7485 * @prspiocbq: Pointer to response iocb.
7486 * @timeout: Timeout in number of seconds.
7487 *
7488 * This function issues the iocb to firmware and waits for the
7489 * iocb to complete. If the iocb command is not
7490 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
7491 * Caller should not free the iocb resources if this function
7492 * returns IOCB_TIMEDOUT.
7493 * The function waits for the iocb completion using an
7494 * non-interruptible wait.
7495 * This function will sleep while waiting for iocb completion.
7496 * So, this function should not be called from any context which
7497 * does not allow sleeping. Due to the same reason, this function
7498 * cannot be called with interrupt disabled.
7499 * This function assumes that the iocb completions occur while
7500 * this function sleep. So, this function cannot be called from
7501 * the thread which process iocb completion for this ring.
7502 * This function clears the iocb_flag of the iocb object before
7503 * issuing the iocb and the iocb completion handler sets this
7504 * flag and wakes this thread when the iocb completes.
7505 * The contents of the response iocb will be copied to prspiocbq
7506 * by the completion handler when the command completes.
7507 * This function returns IOCB_SUCCESS when success.
7508 * This function is called with no lock held.
7509 **/
dea31012005-04-17 16:05:31 -05007510int
James Smart2e0fef82007-06-17 19:56:36 -05007511lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
James Smartda0436e2009-05-22 14:51:39 -04007512 uint32_t ring_number,
James Smart2e0fef82007-06-17 19:56:36 -05007513 struct lpfc_iocbq *piocb,
7514 struct lpfc_iocbq *prspiocbq,
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007515 uint32_t timeout)
dea31012005-04-17 16:05:31 -05007516{
Peter Zijlstra7259f0d2006-10-29 22:46:36 -08007517 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007518 long timeleft, timeout_req = 0;
7519 int retval = IOCB_SUCCESS;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05007520 uint32_t creg_val;
dea31012005-04-17 16:05:31 -05007521
7522 /*
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007523 * If the caller has provided a response iocbq buffer, then context2
7524 * is NULL or its an error.
dea31012005-04-17 16:05:31 -05007525 */
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007526 if (prspiocbq) {
7527 if (piocb->context2)
7528 return IOCB_ERROR;
7529 piocb->context2 = prspiocbq;
dea31012005-04-17 16:05:31 -05007530 }
7531
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007532 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
7533 piocb->context_un.wait_queue = &done_q;
7534 piocb->iocb_flag &= ~LPFC_IO_WAKE;
dea31012005-04-17 16:05:31 -05007535
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05007536 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7537 creg_val = readl(phba->HCregaddr);
7538 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
7539 writel(creg_val, phba->HCregaddr);
7540 readl(phba->HCregaddr); /* flush */
7541 }
7542
James Smartda0436e2009-05-22 14:51:39 -04007543 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb, 0);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007544 if (retval == IOCB_SUCCESS) {
7545 timeout_req = timeout * HZ;
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007546 timeleft = wait_event_timeout(done_q,
James Smartd11e31d2009-06-10 17:23:06 -04007547 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007548 timeout_req);
dea31012005-04-17 16:05:31 -05007549
James Smart7054a602007-04-25 09:52:34 -04007550 if (piocb->iocb_flag & LPFC_IO_WAKE) {
7551 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04007552 "0331 IOCB wake signaled\n");
James Smart7054a602007-04-25 09:52:34 -04007553 } else if (timeleft == 0) {
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007554 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04007555 "0338 IOCB wait timeout error - no "
7556 "wake response Data x%x\n", timeout);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007557 retval = IOCB_TIMEDOUT;
James Smart7054a602007-04-25 09:52:34 -04007558 } else {
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007559 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04007560 "0330 IOCB wake NOT set, "
7561 "Data x%x x%lx\n",
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007562 timeout, (timeleft / jiffies));
7563 retval = IOCB_TIMEDOUT;
dea31012005-04-17 16:05:31 -05007564 }
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007565 } else {
7566 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smartd7c255b2008-08-24 21:50:00 -04007567 "0332 IOCB wait issue failed, Data x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04007568 retval);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007569 retval = IOCB_ERROR;
dea31012005-04-17 16:05:31 -05007570 }
7571
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05007572 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7573 creg_val = readl(phba->HCregaddr);
7574 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
7575 writel(creg_val, phba->HCregaddr);
7576 readl(phba->HCregaddr); /* flush */
7577 }
7578
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007579 if (prspiocbq)
7580 piocb->context2 = NULL;
7581
7582 piocb->context_un.wait_queue = NULL;
7583 piocb->iocb_cmpl = NULL;
dea31012005-04-17 16:05:31 -05007584 return retval;
7585}
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007586
James Smarte59058c2008-08-24 21:49:00 -04007587/**
James Smart3621a712009-04-06 18:47:14 -04007588 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
James Smarte59058c2008-08-24 21:49:00 -04007589 * @phba: Pointer to HBA context object.
7590 * @pmboxq: Pointer to driver mailbox object.
7591 * @timeout: Timeout in number of seconds.
7592 *
7593 * This function issues the mailbox to firmware and waits for the
7594 * mailbox command to complete. If the mailbox command is not
7595 * completed within timeout seconds, it returns MBX_TIMEOUT.
7596 * The function waits for the mailbox completion using an
7597 * interruptible wait. If the thread is woken up due to a
7598 * signal, MBX_TIMEOUT error is returned to the caller. Caller
7599 * should not free the mailbox resources, if this function returns
7600 * MBX_TIMEOUT.
7601 * This function will sleep while waiting for mailbox completion.
7602 * So, this function should not be called from any context which
7603 * does not allow sleeping. Due to the same reason, this function
7604 * cannot be called with interrupt disabled.
7605 * This function assumes that the mailbox completion occurs while
7606 * this function sleep. So, this function cannot be called from
7607 * the worker thread which processes mailbox completion.
7608 * This function is called in the context of HBA management
7609 * applications.
7610 * This function returns MBX_SUCCESS when successful.
7611 * This function is called with no lock held.
7612 **/
dea31012005-04-17 16:05:31 -05007613int
James Smart2e0fef82007-06-17 19:56:36 -05007614lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
dea31012005-04-17 16:05:31 -05007615 uint32_t timeout)
7616{
Peter Zijlstra7259f0d2006-10-29 22:46:36 -08007617 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
dea31012005-04-17 16:05:31 -05007618 int retval;
James Smart858c9f62007-06-17 19:56:39 -05007619 unsigned long flag;
dea31012005-04-17 16:05:31 -05007620
7621 /* The caller must leave context1 empty. */
James Smart98c9ea52007-10-27 13:37:33 -04007622 if (pmboxq->context1)
James Smart2e0fef82007-06-17 19:56:36 -05007623 return MBX_NOT_FINISHED;
dea31012005-04-17 16:05:31 -05007624
James Smart495a7142008-06-14 22:52:59 -04007625 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
dea31012005-04-17 16:05:31 -05007626 /* setup wake call as IOCB callback */
7627 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
7628 /* setup context field to pass wait_queue pointer to wake function */
7629 pmboxq->context1 = &done_q;
7630
dea31012005-04-17 16:05:31 -05007631 /* now issue the command */
7632 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
7633
7634 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
James Smart7054a602007-04-25 09:52:34 -04007635 wait_event_interruptible_timeout(done_q,
7636 pmboxq->mbox_flag & LPFC_MBX_WAKE,
7637 timeout * HZ);
7638
James Smart858c9f62007-06-17 19:56:39 -05007639 spin_lock_irqsave(&phba->hbalock, flag);
dea31012005-04-17 16:05:31 -05007640 pmboxq->context1 = NULL;
James Smart7054a602007-04-25 09:52:34 -04007641 /*
7642 * if LPFC_MBX_WAKE flag is set the mailbox is completed
7643 * else do not free the resources.
7644 */
7645 if (pmboxq->mbox_flag & LPFC_MBX_WAKE)
dea31012005-04-17 16:05:31 -05007646 retval = MBX_SUCCESS;
James Smart858c9f62007-06-17 19:56:39 -05007647 else {
James Smart7054a602007-04-25 09:52:34 -04007648 retval = MBX_TIMEOUT;
James Smart858c9f62007-06-17 19:56:39 -05007649 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
7650 }
7651 spin_unlock_irqrestore(&phba->hbalock, flag);
dea31012005-04-17 16:05:31 -05007652 }
7653
dea31012005-04-17 16:05:31 -05007654 return retval;
7655}
7656
James Smarte59058c2008-08-24 21:49:00 -04007657/**
James Smart3772a992009-05-22 14:50:54 -04007658 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
James Smarte59058c2008-08-24 21:49:00 -04007659 * @phba: Pointer to HBA context.
7660 *
James Smart3772a992009-05-22 14:50:54 -04007661 * This function is called to shutdown the driver's mailbox sub-system.
7662 * It first marks the mailbox sub-system is in a block state to prevent
7663 * the asynchronous mailbox command from issued off the pending mailbox
7664 * command queue. If the mailbox command sub-system shutdown is due to
7665 * HBA error conditions such as EEH or ERATT, this routine shall invoke
7666 * the mailbox sub-system flush routine to forcefully bring down the
7667 * mailbox sub-system. Otherwise, if it is due to normal condition (such
7668 * as with offline or HBA function reset), this routine will wait for the
7669 * outstanding mailbox command to complete before invoking the mailbox
7670 * sub-system flush routine to gracefully bring down mailbox sub-system.
James Smarte59058c2008-08-24 21:49:00 -04007671 **/
James Smart3772a992009-05-22 14:50:54 -04007672void
7673lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba)
James Smartb4c02652006-07-06 15:50:43 -04007674{
James Smart3772a992009-05-22 14:50:54 -04007675 struct lpfc_sli *psli = &phba->sli;
7676 uint8_t actcmd = MBX_HEARTBEAT;
7677 unsigned long timeout;
7678
7679 spin_lock_irq(&phba->hbalock);
7680 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7681 spin_unlock_irq(&phba->hbalock);
7682
7683 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7684 spin_lock_irq(&phba->hbalock);
7685 if (phba->sli.mbox_active)
7686 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
7687 spin_unlock_irq(&phba->hbalock);
7688 /* Determine how long we might wait for the active mailbox
7689 * command to be gracefully completed by firmware.
7690 */
7691 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) *
7692 1000) + jiffies;
7693 while (phba->sli.mbox_active) {
7694 /* Check active mailbox complete status every 2ms */
7695 msleep(2);
7696 if (time_after(jiffies, timeout))
7697 /* Timeout, let the mailbox flush routine to
7698 * forcefully release active mailbox command
7699 */
7700 break;
7701 }
7702 }
7703 lpfc_sli_mbox_sys_flush(phba);
7704}
7705
7706/**
7707 * lpfc_sli_eratt_read - read sli-3 error attention events
7708 * @phba: Pointer to HBA context.
7709 *
7710 * This function is called to read the SLI3 device error attention registers
7711 * for possible error attention events. The caller must hold the hostlock
7712 * with spin_lock_irq().
7713 *
7714 * This fucntion returns 1 when there is Error Attention in the Host Attention
7715 * Register and returns 0 otherwise.
7716 **/
7717static int
7718lpfc_sli_eratt_read(struct lpfc_hba *phba)
7719{
James Smarted957682007-06-17 19:56:37 -05007720 uint32_t ha_copy;
James Smartb4c02652006-07-06 15:50:43 -04007721
James Smart3772a992009-05-22 14:50:54 -04007722 /* Read chip Host Attention (HA) register */
7723 ha_copy = readl(phba->HAregaddr);
7724 if (ha_copy & HA_ERATT) {
7725 /* Read host status register to retrieve error event */
7726 lpfc_sli_read_hs(phba);
James Smartb4c02652006-07-06 15:50:43 -04007727
James Smart3772a992009-05-22 14:50:54 -04007728 /* Check if there is a deferred error condition is active */
7729 if ((HS_FFER1 & phba->work_hs) &&
7730 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
7731 HS_FFER6 | HS_FFER7) & phba->work_hs)) {
James Smart3772a992009-05-22 14:50:54 -04007732 phba->hba_flag |= DEFER_ERATT;
James Smart3772a992009-05-22 14:50:54 -04007733 /* Clear all interrupt enable conditions */
7734 writel(0, phba->HCregaddr);
7735 readl(phba->HCregaddr);
7736 }
7737
7738 /* Set the driver HA work bitmap */
James Smart3772a992009-05-22 14:50:54 -04007739 phba->work_ha |= HA_ERATT;
7740 /* Indicate polling handles this ERATT */
7741 phba->hba_flag |= HBA_ERATT_HANDLED;
James Smart3772a992009-05-22 14:50:54 -04007742 return 1;
James Smartb4c02652006-07-06 15:50:43 -04007743 }
James Smart3772a992009-05-22 14:50:54 -04007744 return 0;
James Smartb4c02652006-07-06 15:50:43 -04007745}
7746
James Smarte59058c2008-08-24 21:49:00 -04007747/**
James Smartda0436e2009-05-22 14:51:39 -04007748 * lpfc_sli4_eratt_read - read sli-4 error attention events
7749 * @phba: Pointer to HBA context.
7750 *
7751 * This function is called to read the SLI4 device error attention registers
7752 * for possible error attention events. The caller must hold the hostlock
7753 * with spin_lock_irq().
7754 *
7755 * This fucntion returns 1 when there is Error Attention in the Host Attention
7756 * Register and returns 0 otherwise.
7757 **/
7758static int
7759lpfc_sli4_eratt_read(struct lpfc_hba *phba)
7760{
7761 uint32_t uerr_sta_hi, uerr_sta_lo;
James Smartda0436e2009-05-22 14:51:39 -04007762
7763 /* For now, use the SLI4 device internal unrecoverable error
7764 * registers for error attention. This can be changed later.
7765 */
James Smarta747c9c2009-11-18 15:41:10 -05007766 uerr_sta_lo = readl(phba->sli4_hba.UERRLOregaddr);
7767 uerr_sta_hi = readl(phba->sli4_hba.UERRHIregaddr);
7768 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
7769 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
7770 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7771 "1423 HBA Unrecoverable error: "
7772 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
7773 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
7774 uerr_sta_lo, uerr_sta_hi,
7775 phba->sli4_hba.ue_mask_lo,
7776 phba->sli4_hba.ue_mask_hi);
7777 phba->work_status[0] = uerr_sta_lo;
7778 phba->work_status[1] = uerr_sta_hi;
7779 /* Set the driver HA work bitmap */
7780 phba->work_ha |= HA_ERATT;
7781 /* Indicate polling handles this ERATT */
7782 phba->hba_flag |= HBA_ERATT_HANDLED;
7783 return 1;
James Smartda0436e2009-05-22 14:51:39 -04007784 }
7785 return 0;
7786}
7787
7788/**
James Smart3621a712009-04-06 18:47:14 -04007789 * lpfc_sli_check_eratt - check error attention events
James Smart93996272008-08-24 21:50:30 -04007790 * @phba: Pointer to HBA context.
7791 *
James Smart3772a992009-05-22 14:50:54 -04007792 * This function is called from timer soft interrupt context to check HBA's
James Smart93996272008-08-24 21:50:30 -04007793 * error attention register bit for error attention events.
7794 *
7795 * This fucntion returns 1 when there is Error Attention in the Host Attention
7796 * Register and returns 0 otherwise.
7797 **/
7798int
7799lpfc_sli_check_eratt(struct lpfc_hba *phba)
7800{
7801 uint32_t ha_copy;
7802
7803 /* If somebody is waiting to handle an eratt, don't process it
7804 * here. The brdkill function will do this.
7805 */
7806 if (phba->link_flag & LS_IGNORE_ERATT)
7807 return 0;
7808
7809 /* Check if interrupt handler handles this ERATT */
7810 spin_lock_irq(&phba->hbalock);
7811 if (phba->hba_flag & HBA_ERATT_HANDLED) {
7812 /* Interrupt handler has handled ERATT */
7813 spin_unlock_irq(&phba->hbalock);
7814 return 0;
7815 }
7816
James Smarta257bf92009-04-06 18:48:10 -04007817 /*
7818 * If there is deferred error attention, do not check for error
7819 * attention
7820 */
7821 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
7822 spin_unlock_irq(&phba->hbalock);
7823 return 0;
7824 }
7825
James Smart3772a992009-05-22 14:50:54 -04007826 /* If PCI channel is offline, don't process it */
7827 if (unlikely(pci_channel_offline(phba->pcidev))) {
James Smart93996272008-08-24 21:50:30 -04007828 spin_unlock_irq(&phba->hbalock);
James Smart3772a992009-05-22 14:50:54 -04007829 return 0;
7830 }
7831
7832 switch (phba->sli_rev) {
7833 case LPFC_SLI_REV2:
7834 case LPFC_SLI_REV3:
7835 /* Read chip Host Attention (HA) register */
7836 ha_copy = lpfc_sli_eratt_read(phba);
7837 break;
James Smartda0436e2009-05-22 14:51:39 -04007838 case LPFC_SLI_REV4:
7839 /* Read devcie Uncoverable Error (UERR) registers */
7840 ha_copy = lpfc_sli4_eratt_read(phba);
7841 break;
James Smart3772a992009-05-22 14:50:54 -04007842 default:
7843 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7844 "0299 Invalid SLI revision (%d)\n",
7845 phba->sli_rev);
7846 ha_copy = 0;
7847 break;
James Smart93996272008-08-24 21:50:30 -04007848 }
7849 spin_unlock_irq(&phba->hbalock);
James Smart3772a992009-05-22 14:50:54 -04007850
7851 return ha_copy;
7852}
7853
7854/**
7855 * lpfc_intr_state_check - Check device state for interrupt handling
7856 * @phba: Pointer to HBA context.
7857 *
7858 * This inline routine checks whether a device or its PCI slot is in a state
7859 * that the interrupt should be handled.
7860 *
7861 * This function returns 0 if the device or the PCI slot is in a state that
7862 * interrupt should be handled, otherwise -EIO.
7863 */
7864static inline int
7865lpfc_intr_state_check(struct lpfc_hba *phba)
7866{
7867 /* If the pci channel is offline, ignore all the interrupts */
7868 if (unlikely(pci_channel_offline(phba->pcidev)))
7869 return -EIO;
7870
7871 /* Update device level interrupt statistics */
7872 phba->sli.slistat.sli_intr++;
7873
7874 /* Ignore all interrupts during initialization. */
7875 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
7876 return -EIO;
7877
James Smart93996272008-08-24 21:50:30 -04007878 return 0;
7879}
7880
7881/**
James Smart3772a992009-05-22 14:50:54 -04007882 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
James Smarte59058c2008-08-24 21:49:00 -04007883 * @irq: Interrupt number.
7884 * @dev_id: The device context pointer.
7885 *
James Smart93996272008-08-24 21:50:30 -04007886 * This function is directly called from the PCI layer as an interrupt
James Smart3772a992009-05-22 14:50:54 -04007887 * service routine when device with SLI-3 interface spec is enabled with
7888 * MSI-X multi-message interrupt mode and there are slow-path events in
7889 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
7890 * interrupt mode, this function is called as part of the device-level
7891 * interrupt handler. When the PCI slot is in error recovery or the HBA
7892 * is undergoing initialization, the interrupt handler will not process
7893 * the interrupt. The link attention and ELS ring attention events are
7894 * handled by the worker thread. The interrupt handler signals the worker
7895 * thread and returns for these events. This function is called without
7896 * any lock held. It gets the hbalock to access and update SLI data
James Smart93996272008-08-24 21:50:30 -04007897 * structures.
7898 *
7899 * This function returns IRQ_HANDLED when interrupt is handled else it
7900 * returns IRQ_NONE.
James Smarte59058c2008-08-24 21:49:00 -04007901 **/
dea31012005-04-17 16:05:31 -05007902irqreturn_t
James Smart3772a992009-05-22 14:50:54 -04007903lpfc_sli_sp_intr_handler(int irq, void *dev_id)
dea31012005-04-17 16:05:31 -05007904{
James Smart2e0fef82007-06-17 19:56:36 -05007905 struct lpfc_hba *phba;
James Smarta747c9c2009-11-18 15:41:10 -05007906 uint32_t ha_copy, hc_copy;
dea31012005-04-17 16:05:31 -05007907 uint32_t work_ha_copy;
7908 unsigned long status;
James Smart5b75da22008-12-04 22:39:35 -05007909 unsigned long iflag;
dea31012005-04-17 16:05:31 -05007910 uint32_t control;
7911
James Smart92d7f7b2007-06-17 19:56:38 -05007912 MAILBOX_t *mbox, *pmbox;
James Smart858c9f62007-06-17 19:56:39 -05007913 struct lpfc_vport *vport;
7914 struct lpfc_nodelist *ndlp;
7915 struct lpfc_dmabuf *mp;
James Smart92d7f7b2007-06-17 19:56:38 -05007916 LPFC_MBOXQ_t *pmb;
7917 int rc;
7918
dea31012005-04-17 16:05:31 -05007919 /*
7920 * Get the driver's phba structure from the dev_id and
7921 * assume the HBA is not interrupting.
7922 */
James Smart93996272008-08-24 21:50:30 -04007923 phba = (struct lpfc_hba *)dev_id;
dea31012005-04-17 16:05:31 -05007924
7925 if (unlikely(!phba))
7926 return IRQ_NONE;
7927
dea31012005-04-17 16:05:31 -05007928 /*
James Smart93996272008-08-24 21:50:30 -04007929 * Stuff needs to be attented to when this function is invoked as an
7930 * individual interrupt handler in MSI-X multi-message interrupt mode
dea31012005-04-17 16:05:31 -05007931 */
James Smart93996272008-08-24 21:50:30 -04007932 if (phba->intr_type == MSIX) {
James Smart3772a992009-05-22 14:50:54 -04007933 /* Check device state for handling interrupt */
7934 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -04007935 return IRQ_NONE;
7936 /* Need to read HA REG for slow-path events */
James Smart5b75da22008-12-04 22:39:35 -05007937 spin_lock_irqsave(&phba->hbalock, iflag);
James Smart34b02dc2008-08-24 21:49:55 -04007938 ha_copy = readl(phba->HAregaddr);
James Smart93996272008-08-24 21:50:30 -04007939 /* If somebody is waiting to handle an eratt don't process it
7940 * here. The brdkill function will do this.
7941 */
7942 if (phba->link_flag & LS_IGNORE_ERATT)
7943 ha_copy &= ~HA_ERATT;
7944 /* Check the need for handling ERATT in interrupt handler */
7945 if (ha_copy & HA_ERATT) {
7946 if (phba->hba_flag & HBA_ERATT_HANDLED)
7947 /* ERATT polling has handled ERATT */
7948 ha_copy &= ~HA_ERATT;
7949 else
7950 /* Indicate interrupt handler handles ERATT */
7951 phba->hba_flag |= HBA_ERATT_HANDLED;
7952 }
James Smarta257bf92009-04-06 18:48:10 -04007953
7954 /*
7955 * If there is deferred error attention, do not check for any
7956 * interrupt.
7957 */
7958 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
James Smart3772a992009-05-22 14:50:54 -04007959 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -04007960 return IRQ_NONE;
7961 }
7962
James Smart93996272008-08-24 21:50:30 -04007963 /* Clear up only attention source related to slow-path */
James Smarta747c9c2009-11-18 15:41:10 -05007964 hc_copy = readl(phba->HCregaddr);
7965 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
7966 HC_LAINT_ENA | HC_ERINT_ENA),
7967 phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -04007968 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
7969 phba->HAregaddr);
James Smarta747c9c2009-11-18 15:41:10 -05007970 writel(hc_copy, phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -04007971 readl(phba->HAregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -05007972 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -04007973 } else
7974 ha_copy = phba->ha_copy;
dea31012005-04-17 16:05:31 -05007975
dea31012005-04-17 16:05:31 -05007976 work_ha_copy = ha_copy & phba->work_ha_mask;
7977
James Smart93996272008-08-24 21:50:30 -04007978 if (work_ha_copy) {
dea31012005-04-17 16:05:31 -05007979 if (work_ha_copy & HA_LATT) {
7980 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
7981 /*
7982 * Turn off Link Attention interrupts
7983 * until CLEAR_LA done
7984 */
James Smart5b75da22008-12-04 22:39:35 -05007985 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05007986 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
7987 control = readl(phba->HCregaddr);
7988 control &= ~HC_LAINT_ENA;
7989 writel(control, phba->HCregaddr);
7990 readl(phba->HCregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -05007991 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05007992 }
7993 else
7994 work_ha_copy &= ~HA_LATT;
7995 }
7996
James Smart93996272008-08-24 21:50:30 -04007997 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
James Smart858c9f62007-06-17 19:56:39 -05007998 /*
7999 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
8000 * the only slow ring.
8001 */
8002 status = (work_ha_copy &
8003 (HA_RXMASK << (4*LPFC_ELS_RING)));
8004 status >>= (4*LPFC_ELS_RING);
8005 if (status & HA_RXMASK) {
James Smart5b75da22008-12-04 22:39:35 -05008006 spin_lock_irqsave(&phba->hbalock, iflag);
James Smart858c9f62007-06-17 19:56:39 -05008007 control = readl(phba->HCregaddr);
James Smarta58cbd52007-08-02 11:09:43 -04008008
8009 lpfc_debugfs_slow_ring_trc(phba,
8010 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
8011 control, status,
8012 (uint32_t)phba->sli.slistat.sli_intr);
8013
James Smart858c9f62007-06-17 19:56:39 -05008014 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
James Smarta58cbd52007-08-02 11:09:43 -04008015 lpfc_debugfs_slow_ring_trc(phba,
8016 "ISR Disable ring:"
8017 "pwork:x%x hawork:x%x wait:x%x",
8018 phba->work_ha, work_ha_copy,
8019 (uint32_t)((unsigned long)
James Smart5e9d9b82008-06-14 22:52:53 -04008020 &phba->work_waitq));
James Smarta58cbd52007-08-02 11:09:43 -04008021
James Smart858c9f62007-06-17 19:56:39 -05008022 control &=
8023 ~(HC_R0INT_ENA << LPFC_ELS_RING);
dea31012005-04-17 16:05:31 -05008024 writel(control, phba->HCregaddr);
8025 readl(phba->HCregaddr); /* flush */
dea31012005-04-17 16:05:31 -05008026 }
James Smarta58cbd52007-08-02 11:09:43 -04008027 else {
8028 lpfc_debugfs_slow_ring_trc(phba,
8029 "ISR slow ring: pwork:"
8030 "x%x hawork:x%x wait:x%x",
8031 phba->work_ha, work_ha_copy,
8032 (uint32_t)((unsigned long)
James Smart5e9d9b82008-06-14 22:52:53 -04008033 &phba->work_waitq));
James Smarta58cbd52007-08-02 11:09:43 -04008034 }
James Smart5b75da22008-12-04 22:39:35 -05008035 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05008036 }
8037 }
James Smart5b75da22008-12-04 22:39:35 -05008038 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -04008039 if (work_ha_copy & HA_ERATT) {
James Smart93996272008-08-24 21:50:30 -04008040 lpfc_sli_read_hs(phba);
James Smarta257bf92009-04-06 18:48:10 -04008041 /*
8042 * Check if there is a deferred error condition
8043 * is active
8044 */
8045 if ((HS_FFER1 & phba->work_hs) &&
8046 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
8047 HS_FFER6 | HS_FFER7) & phba->work_hs)) {
8048 phba->hba_flag |= DEFER_ERATT;
8049 /* Clear all interrupt enable conditions */
8050 writel(0, phba->HCregaddr);
8051 readl(phba->HCregaddr);
8052 }
8053 }
8054
James Smart93996272008-08-24 21:50:30 -04008055 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
James Smart92d7f7b2007-06-17 19:56:38 -05008056 pmb = phba->sli.mbox_active;
James Smart04c68492009-05-22 14:52:52 -04008057 pmbox = &pmb->u.mb;
James Smart34b02dc2008-08-24 21:49:55 -04008058 mbox = phba->mbox;
James Smart858c9f62007-06-17 19:56:39 -05008059 vport = pmb->vport;
James Smart92d7f7b2007-06-17 19:56:38 -05008060
8061 /* First check out the status word */
8062 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
8063 if (pmbox->mbxOwner != OWN_HOST) {
James Smart5b75da22008-12-04 22:39:35 -05008064 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart92d7f7b2007-06-17 19:56:38 -05008065 /*
8066 * Stray Mailbox Interrupt, mbxCommand <cmd>
8067 * mbxStatus <status>
8068 */
James Smart09372822008-01-11 01:52:54 -05008069 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
James Smart92d7f7b2007-06-17 19:56:38 -05008070 LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04008071 "(%d):0304 Stray Mailbox "
James Smart92d7f7b2007-06-17 19:56:38 -05008072 "Interrupt mbxCommand x%x "
8073 "mbxStatus x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04008074 (vport ? vport->vpi : 0),
James Smart92d7f7b2007-06-17 19:56:38 -05008075 pmbox->mbxCommand,
8076 pmbox->mbxStatus);
James Smart09372822008-01-11 01:52:54 -05008077 /* clear mailbox attention bit */
8078 work_ha_copy &= ~HA_MBATT;
8079 } else {
James Smart97eab632008-04-07 10:16:05 -04008080 phba->sli.mbox_active = NULL;
James Smart5b75da22008-12-04 22:39:35 -05008081 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart09372822008-01-11 01:52:54 -05008082 phba->last_completion_time = jiffies;
8083 del_timer(&phba->sli.mbox_tmo);
James Smart09372822008-01-11 01:52:54 -05008084 if (pmb->mbox_cmpl) {
8085 lpfc_sli_pcimem_bcopy(mbox, pmbox,
8086 MAILBOX_CMD_SIZE);
James Smart858c9f62007-06-17 19:56:39 -05008087 }
James Smart09372822008-01-11 01:52:54 -05008088 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
8089 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
8090
8091 lpfc_debugfs_disc_trc(vport,
8092 LPFC_DISC_TRC_MBOX_VPORT,
8093 "MBOX dflt rpi: : "
8094 "status:x%x rpi:x%x",
8095 (uint32_t)pmbox->mbxStatus,
8096 pmbox->un.varWords[0], 0);
8097
8098 if (!pmbox->mbxStatus) {
8099 mp = (struct lpfc_dmabuf *)
8100 (pmb->context1);
8101 ndlp = (struct lpfc_nodelist *)
8102 pmb->context2;
8103
8104 /* Reg_LOGIN of dflt RPI was
8105 * successful. new lets get
8106 * rid of the RPI using the
8107 * same mbox buffer.
8108 */
8109 lpfc_unreg_login(phba,
8110 vport->vpi,
8111 pmbox->un.varWords[0],
8112 pmb);
8113 pmb->mbox_cmpl =
8114 lpfc_mbx_cmpl_dflt_rpi;
8115 pmb->context1 = mp;
8116 pmb->context2 = ndlp;
8117 pmb->vport = vport;
James Smart58da1ff2008-04-07 10:15:56 -04008118 rc = lpfc_sli_issue_mbox(phba,
8119 pmb,
8120 MBX_NOWAIT);
8121 if (rc != MBX_BUSY)
8122 lpfc_printf_log(phba,
8123 KERN_ERR,
8124 LOG_MBOX | LOG_SLI,
James Smartd7c255b2008-08-24 21:50:00 -04008125 "0350 rc should have"
James Smart6a9c52c2009-10-02 15:16:51 -04008126 "been MBX_BUSY\n");
James Smart3772a992009-05-22 14:50:54 -04008127 if (rc != MBX_NOT_FINISHED)
8128 goto send_current_mbox;
James Smart09372822008-01-11 01:52:54 -05008129 }
8130 }
James Smart5b75da22008-12-04 22:39:35 -05008131 spin_lock_irqsave(
8132 &phba->pport->work_port_lock,
8133 iflag);
James Smart09372822008-01-11 01:52:54 -05008134 phba->pport->work_port_events &=
8135 ~WORKER_MBOX_TMO;
James Smart5b75da22008-12-04 22:39:35 -05008136 spin_unlock_irqrestore(
8137 &phba->pport->work_port_lock,
8138 iflag);
James Smart09372822008-01-11 01:52:54 -05008139 lpfc_mbox_cmpl_put(phba, pmb);
James Smart858c9f62007-06-17 19:56:39 -05008140 }
James Smart97eab632008-04-07 10:16:05 -04008141 } else
James Smart5b75da22008-12-04 22:39:35 -05008142 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -04008143
James Smart92d7f7b2007-06-17 19:56:38 -05008144 if ((work_ha_copy & HA_MBATT) &&
8145 (phba->sli.mbox_active == NULL)) {
James Smart858c9f62007-06-17 19:56:39 -05008146send_current_mbox:
James Smart92d7f7b2007-06-17 19:56:38 -05008147 /* Process next mailbox command if there is one */
James Smart58da1ff2008-04-07 10:15:56 -04008148 do {
8149 rc = lpfc_sli_issue_mbox(phba, NULL,
8150 MBX_NOWAIT);
8151 } while (rc == MBX_NOT_FINISHED);
8152 if (rc != MBX_SUCCESS)
8153 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
8154 LOG_SLI, "0349 rc should be "
James Smart6a9c52c2009-10-02 15:16:51 -04008155 "MBX_SUCCESS\n");
James Smart92d7f7b2007-06-17 19:56:38 -05008156 }
8157
James Smart5b75da22008-12-04 22:39:35 -05008158 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05008159 phba->work_ha |= work_ha_copy;
James Smart5b75da22008-12-04 22:39:35 -05008160 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart5e9d9b82008-06-14 22:52:53 -04008161 lpfc_worker_wake_up(phba);
dea31012005-04-17 16:05:31 -05008162 }
James Smart93996272008-08-24 21:50:30 -04008163 return IRQ_HANDLED;
dea31012005-04-17 16:05:31 -05008164
James Smart3772a992009-05-22 14:50:54 -04008165} /* lpfc_sli_sp_intr_handler */
James Smart93996272008-08-24 21:50:30 -04008166
8167/**
James Smart3772a992009-05-22 14:50:54 -04008168 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
James Smart93996272008-08-24 21:50:30 -04008169 * @irq: Interrupt number.
8170 * @dev_id: The device context pointer.
8171 *
8172 * This function is directly called from the PCI layer as an interrupt
James Smart3772a992009-05-22 14:50:54 -04008173 * service routine when device with SLI-3 interface spec is enabled with
8174 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
8175 * ring event in the HBA. However, when the device is enabled with either
8176 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
8177 * device-level interrupt handler. When the PCI slot is in error recovery
8178 * or the HBA is undergoing initialization, the interrupt handler will not
8179 * process the interrupt. The SCSI FCP fast-path ring event are handled in
8180 * the intrrupt context. This function is called without any lock held.
8181 * It gets the hbalock to access and update SLI data structures.
James Smart93996272008-08-24 21:50:30 -04008182 *
8183 * This function returns IRQ_HANDLED when interrupt is handled else it
8184 * returns IRQ_NONE.
8185 **/
8186irqreturn_t
James Smart3772a992009-05-22 14:50:54 -04008187lpfc_sli_fp_intr_handler(int irq, void *dev_id)
James Smart93996272008-08-24 21:50:30 -04008188{
8189 struct lpfc_hba *phba;
8190 uint32_t ha_copy;
8191 unsigned long status;
James Smart5b75da22008-12-04 22:39:35 -05008192 unsigned long iflag;
James Smart93996272008-08-24 21:50:30 -04008193
8194 /* Get the driver's phba structure from the dev_id and
8195 * assume the HBA is not interrupting.
8196 */
8197 phba = (struct lpfc_hba *) dev_id;
8198
8199 if (unlikely(!phba))
8200 return IRQ_NONE;
dea31012005-04-17 16:05:31 -05008201
8202 /*
James Smart93996272008-08-24 21:50:30 -04008203 * Stuff needs to be attented to when this function is invoked as an
8204 * individual interrupt handler in MSI-X multi-message interrupt mode
dea31012005-04-17 16:05:31 -05008205 */
James Smart93996272008-08-24 21:50:30 -04008206 if (phba->intr_type == MSIX) {
James Smart3772a992009-05-22 14:50:54 -04008207 /* Check device state for handling interrupt */
8208 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -04008209 return IRQ_NONE;
8210 /* Need to read HA REG for FCP ring and other ring events */
8211 ha_copy = readl(phba->HAregaddr);
8212 /* Clear up only attention source related to fast-path */
James Smart5b75da22008-12-04 22:39:35 -05008213 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -04008214 /*
8215 * If there is deferred error attention, do not check for
8216 * any interrupt.
8217 */
8218 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
James Smart3772a992009-05-22 14:50:54 -04008219 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -04008220 return IRQ_NONE;
8221 }
James Smart93996272008-08-24 21:50:30 -04008222 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
8223 phba->HAregaddr);
8224 readl(phba->HAregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -05008225 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -04008226 } else
8227 ha_copy = phba->ha_copy;
8228
8229 /*
8230 * Process all events on FCP ring. Take the optimized path for FCP IO.
8231 */
8232 ha_copy &= ~(phba->work_ha_mask);
8233
8234 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
dea31012005-04-17 16:05:31 -05008235 status >>= (4*LPFC_FCP_RING);
James Smart858c9f62007-06-17 19:56:39 -05008236 if (status & HA_RXMASK)
dea31012005-04-17 16:05:31 -05008237 lpfc_sli_handle_fast_ring_event(phba,
8238 &phba->sli.ring[LPFC_FCP_RING],
8239 status);
James Smarta4bc3372006-12-02 13:34:16 -05008240
8241 if (phba->cfg_multi_ring_support == 2) {
8242 /*
James Smart93996272008-08-24 21:50:30 -04008243 * Process all events on extra ring. Take the optimized path
8244 * for extra ring IO.
James Smarta4bc3372006-12-02 13:34:16 -05008245 */
James Smart93996272008-08-24 21:50:30 -04008246 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
James Smarta4bc3372006-12-02 13:34:16 -05008247 status >>= (4*LPFC_EXTRA_RING);
James Smart858c9f62007-06-17 19:56:39 -05008248 if (status & HA_RXMASK) {
James Smarta4bc3372006-12-02 13:34:16 -05008249 lpfc_sli_handle_fast_ring_event(phba,
8250 &phba->sli.ring[LPFC_EXTRA_RING],
8251 status);
8252 }
8253 }
dea31012005-04-17 16:05:31 -05008254 return IRQ_HANDLED;
James Smart3772a992009-05-22 14:50:54 -04008255} /* lpfc_sli_fp_intr_handler */
dea31012005-04-17 16:05:31 -05008256
James Smart93996272008-08-24 21:50:30 -04008257/**
James Smart3772a992009-05-22 14:50:54 -04008258 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
James Smart93996272008-08-24 21:50:30 -04008259 * @irq: Interrupt number.
8260 * @dev_id: The device context pointer.
8261 *
James Smart3772a992009-05-22 14:50:54 -04008262 * This function is the HBA device-level interrupt handler to device with
8263 * SLI-3 interface spec, called from the PCI layer when either MSI or
8264 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
8265 * requires driver attention. This function invokes the slow-path interrupt
8266 * attention handling function and fast-path interrupt attention handling
8267 * function in turn to process the relevant HBA attention events. This
8268 * function is called without any lock held. It gets the hbalock to access
8269 * and update SLI data structures.
James Smart93996272008-08-24 21:50:30 -04008270 *
8271 * This function returns IRQ_HANDLED when interrupt is handled, else it
8272 * returns IRQ_NONE.
8273 **/
8274irqreturn_t
James Smart3772a992009-05-22 14:50:54 -04008275lpfc_sli_intr_handler(int irq, void *dev_id)
James Smart93996272008-08-24 21:50:30 -04008276{
8277 struct lpfc_hba *phba;
8278 irqreturn_t sp_irq_rc, fp_irq_rc;
8279 unsigned long status1, status2;
James Smarta747c9c2009-11-18 15:41:10 -05008280 uint32_t hc_copy;
James Smart93996272008-08-24 21:50:30 -04008281
8282 /*
8283 * Get the driver's phba structure from the dev_id and
8284 * assume the HBA is not interrupting.
8285 */
8286 phba = (struct lpfc_hba *) dev_id;
8287
8288 if (unlikely(!phba))
8289 return IRQ_NONE;
8290
James Smart3772a992009-05-22 14:50:54 -04008291 /* Check device state for handling interrupt */
8292 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -04008293 return IRQ_NONE;
8294
8295 spin_lock(&phba->hbalock);
8296 phba->ha_copy = readl(phba->HAregaddr);
8297 if (unlikely(!phba->ha_copy)) {
8298 spin_unlock(&phba->hbalock);
8299 return IRQ_NONE;
8300 } else if (phba->ha_copy & HA_ERATT) {
8301 if (phba->hba_flag & HBA_ERATT_HANDLED)
8302 /* ERATT polling has handled ERATT */
8303 phba->ha_copy &= ~HA_ERATT;
8304 else
8305 /* Indicate interrupt handler handles ERATT */
8306 phba->hba_flag |= HBA_ERATT_HANDLED;
8307 }
8308
James Smarta257bf92009-04-06 18:48:10 -04008309 /*
8310 * If there is deferred error attention, do not check for any interrupt.
8311 */
8312 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
8313 spin_unlock_irq(&phba->hbalock);
8314 return IRQ_NONE;
8315 }
8316
James Smart93996272008-08-24 21:50:30 -04008317 /* Clear attention sources except link and error attentions */
James Smarta747c9c2009-11-18 15:41:10 -05008318 hc_copy = readl(phba->HCregaddr);
8319 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
8320 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
8321 phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -04008322 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
James Smarta747c9c2009-11-18 15:41:10 -05008323 writel(hc_copy, phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -04008324 readl(phba->HAregaddr); /* flush */
8325 spin_unlock(&phba->hbalock);
8326
8327 /*
8328 * Invokes slow-path host attention interrupt handling as appropriate.
8329 */
8330
8331 /* status of events with mailbox and link attention */
8332 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
8333
8334 /* status of events with ELS ring */
8335 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
8336 status2 >>= (4*LPFC_ELS_RING);
8337
8338 if (status1 || (status2 & HA_RXMASK))
James Smart3772a992009-05-22 14:50:54 -04008339 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
James Smart93996272008-08-24 21:50:30 -04008340 else
8341 sp_irq_rc = IRQ_NONE;
8342
8343 /*
8344 * Invoke fast-path host attention interrupt handling as appropriate.
8345 */
8346
8347 /* status of events with FCP ring */
8348 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
8349 status1 >>= (4*LPFC_FCP_RING);
8350
8351 /* status of events with extra ring */
8352 if (phba->cfg_multi_ring_support == 2) {
8353 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
8354 status2 >>= (4*LPFC_EXTRA_RING);
8355 } else
8356 status2 = 0;
8357
8358 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
James Smart3772a992009-05-22 14:50:54 -04008359 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
James Smart93996272008-08-24 21:50:30 -04008360 else
8361 fp_irq_rc = IRQ_NONE;
8362
8363 /* Return device-level interrupt handling status */
8364 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
James Smart3772a992009-05-22 14:50:54 -04008365} /* lpfc_sli_intr_handler */
James Smart4f774512009-05-22 14:52:35 -04008366
8367/**
8368 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
8369 * @phba: pointer to lpfc hba data structure.
8370 *
8371 * This routine is invoked by the worker thread to process all the pending
8372 * SLI4 FCP abort XRI events.
8373 **/
8374void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
8375{
8376 struct lpfc_cq_event *cq_event;
8377
8378 /* First, declare the fcp xri abort event has been handled */
8379 spin_lock_irq(&phba->hbalock);
8380 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
8381 spin_unlock_irq(&phba->hbalock);
8382 /* Now, handle all the fcp xri abort events */
8383 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
8384 /* Get the first event from the head of the event queue */
8385 spin_lock_irq(&phba->hbalock);
8386 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
8387 cq_event, struct lpfc_cq_event, list);
8388 spin_unlock_irq(&phba->hbalock);
8389 /* Notify aborted XRI for FCP work queue */
8390 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
8391 /* Free the event processed back to the free pool */
8392 lpfc_sli4_cq_event_release(phba, cq_event);
8393 }
8394}
8395
8396/**
8397 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
8398 * @phba: pointer to lpfc hba data structure.
8399 *
8400 * This routine is invoked by the worker thread to process all the pending
8401 * SLI4 els abort xri events.
8402 **/
8403void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
8404{
8405 struct lpfc_cq_event *cq_event;
8406
8407 /* First, declare the els xri abort event has been handled */
8408 spin_lock_irq(&phba->hbalock);
8409 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
8410 spin_unlock_irq(&phba->hbalock);
8411 /* Now, handle all the els xri abort events */
8412 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
8413 /* Get the first event from the head of the event queue */
8414 spin_lock_irq(&phba->hbalock);
8415 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
8416 cq_event, struct lpfc_cq_event, list);
8417 spin_unlock_irq(&phba->hbalock);
8418 /* Notify aborted XRI for ELS work queue */
8419 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
8420 /* Free the event processed back to the free pool */
8421 lpfc_sli4_cq_event_release(phba, cq_event);
8422 }
8423}
8424
James Smart341af102010-01-26 23:07:37 -05008425/**
8426 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
8427 * @phba: pointer to lpfc hba data structure
8428 * @pIocbIn: pointer to the rspiocbq
8429 * @pIocbOut: pointer to the cmdiocbq
8430 * @wcqe: pointer to the complete wcqe
8431 *
8432 * This routine transfers the fields of a command iocbq to a response iocbq
8433 * by copying all the IOCB fields from command iocbq and transferring the
8434 * completion status information from the complete wcqe.
8435 **/
James Smart4f774512009-05-22 14:52:35 -04008436static void
James Smart341af102010-01-26 23:07:37 -05008437lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
8438 struct lpfc_iocbq *pIocbIn,
James Smart4f774512009-05-22 14:52:35 -04008439 struct lpfc_iocbq *pIocbOut,
8440 struct lpfc_wcqe_complete *wcqe)
8441{
James Smart341af102010-01-26 23:07:37 -05008442 unsigned long iflags;
James Smart4f774512009-05-22 14:52:35 -04008443 size_t offset = offsetof(struct lpfc_iocbq, iocb);
8444
8445 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
8446 sizeof(struct lpfc_iocbq) - offset);
James Smart4f774512009-05-22 14:52:35 -04008447 /* Map WCQE parameters into irspiocb parameters */
8448 pIocbIn->iocb.ulpStatus = bf_get(lpfc_wcqe_c_status, wcqe);
8449 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
8450 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
8451 pIocbIn->iocb.un.fcpi.fcpi_parm =
8452 pIocbOut->iocb.un.fcpi.fcpi_parm -
8453 wcqe->total_data_placed;
8454 else
8455 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
James Smart695a8142010-01-26 23:08:03 -05008456 else {
James Smart4f774512009-05-22 14:52:35 -04008457 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
James Smart695a8142010-01-26 23:08:03 -05008458 pIocbIn->iocb.un.genreq64.bdl.bdeSize = wcqe->total_data_placed;
8459 }
James Smart341af102010-01-26 23:07:37 -05008460
8461 /* Pick up HBA exchange busy condition */
8462 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
8463 spin_lock_irqsave(&phba->hbalock, iflags);
8464 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
8465 spin_unlock_irqrestore(&phba->hbalock, iflags);
8466 }
James Smart4f774512009-05-22 14:52:35 -04008467}
8468
8469/**
James Smart45ed1192009-10-02 15:17:02 -04008470 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
8471 * @phba: Pointer to HBA context object.
8472 * @wcqe: Pointer to work-queue completion queue entry.
8473 *
8474 * This routine handles an ELS work-queue completion event and construct
8475 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
8476 * discovery engine to handle.
8477 *
8478 * Return: Pointer to the receive IOCBQ, NULL otherwise.
8479 **/
8480static struct lpfc_iocbq *
8481lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
8482 struct lpfc_iocbq *irspiocbq)
8483{
8484 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
8485 struct lpfc_iocbq *cmdiocbq;
8486 struct lpfc_wcqe_complete *wcqe;
8487 unsigned long iflags;
8488
8489 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
8490 spin_lock_irqsave(&phba->hbalock, iflags);
8491 pring->stats.iocb_event++;
8492 /* Look up the ELS command IOCB and create pseudo response IOCB */
8493 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
8494 bf_get(lpfc_wcqe_c_request_tag, wcqe));
8495 spin_unlock_irqrestore(&phba->hbalock, iflags);
8496
8497 if (unlikely(!cmdiocbq)) {
8498 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8499 "0386 ELS complete with no corresponding "
8500 "cmdiocb: iotag (%d)\n",
8501 bf_get(lpfc_wcqe_c_request_tag, wcqe));
8502 lpfc_sli_release_iocbq(phba, irspiocbq);
8503 return NULL;
8504 }
8505
8506 /* Fake the irspiocbq and copy necessary response information */
James Smart341af102010-01-26 23:07:37 -05008507 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
James Smart45ed1192009-10-02 15:17:02 -04008508
8509 return irspiocbq;
8510}
8511
8512/**
James Smart04c68492009-05-22 14:52:52 -04008513 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
8514 * @phba: Pointer to HBA context object.
8515 * @cqe: Pointer to mailbox completion queue entry.
8516 *
8517 * This routine process a mailbox completion queue entry with asynchrous
8518 * event.
8519 *
8520 * Return: true if work posted to worker thread, otherwise false.
8521 **/
8522static bool
8523lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
8524{
8525 struct lpfc_cq_event *cq_event;
8526 unsigned long iflags;
8527
8528 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8529 "0392 Async Event: word0:x%x, word1:x%x, "
8530 "word2:x%x, word3:x%x\n", mcqe->word0,
8531 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
8532
8533 /* Allocate a new internal CQ_EVENT entry */
8534 cq_event = lpfc_sli4_cq_event_alloc(phba);
8535 if (!cq_event) {
8536 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8537 "0394 Failed to allocate CQ_EVENT entry\n");
8538 return false;
8539 }
8540
8541 /* Move the CQE into an asynchronous event entry */
8542 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
8543 spin_lock_irqsave(&phba->hbalock, iflags);
8544 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
8545 /* Set the async event flag */
8546 phba->hba_flag |= ASYNC_EVENT;
8547 spin_unlock_irqrestore(&phba->hbalock, iflags);
8548
8549 return true;
8550}
8551
8552/**
8553 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
8554 * @phba: Pointer to HBA context object.
8555 * @cqe: Pointer to mailbox completion queue entry.
8556 *
8557 * This routine process a mailbox completion queue entry with mailbox
8558 * completion event.
8559 *
8560 * Return: true if work posted to worker thread, otherwise false.
8561 **/
8562static bool
8563lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
8564{
8565 uint32_t mcqe_status;
8566 MAILBOX_t *mbox, *pmbox;
8567 struct lpfc_mqe *mqe;
8568 struct lpfc_vport *vport;
8569 struct lpfc_nodelist *ndlp;
8570 struct lpfc_dmabuf *mp;
8571 unsigned long iflags;
8572 LPFC_MBOXQ_t *pmb;
8573 bool workposted = false;
8574 int rc;
8575
8576 /* If not a mailbox complete MCQE, out by checking mailbox consume */
8577 if (!bf_get(lpfc_trailer_completed, mcqe))
8578 goto out_no_mqe_complete;
8579
8580 /* Get the reference to the active mbox command */
8581 spin_lock_irqsave(&phba->hbalock, iflags);
8582 pmb = phba->sli.mbox_active;
8583 if (unlikely(!pmb)) {
8584 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
8585 "1832 No pending MBOX command to handle\n");
8586 spin_unlock_irqrestore(&phba->hbalock, iflags);
8587 goto out_no_mqe_complete;
8588 }
8589 spin_unlock_irqrestore(&phba->hbalock, iflags);
8590 mqe = &pmb->u.mqe;
8591 pmbox = (MAILBOX_t *)&pmb->u.mqe;
8592 mbox = phba->mbox;
8593 vport = pmb->vport;
8594
8595 /* Reset heartbeat timer */
8596 phba->last_completion_time = jiffies;
8597 del_timer(&phba->sli.mbox_tmo);
8598
8599 /* Move mbox data to caller's mailbox region, do endian swapping */
8600 if (pmb->mbox_cmpl && mbox)
8601 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
8602 /* Set the mailbox status with SLI4 range 0x4000 */
8603 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
8604 if (mcqe_status != MB_CQE_STATUS_SUCCESS)
8605 bf_set(lpfc_mqe_status, mqe,
8606 (LPFC_MBX_ERROR_RANGE | mcqe_status));
8607
8608 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
8609 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
8610 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
8611 "MBOX dflt rpi: status:x%x rpi:x%x",
8612 mcqe_status,
8613 pmbox->un.varWords[0], 0);
8614 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
8615 mp = (struct lpfc_dmabuf *)(pmb->context1);
8616 ndlp = (struct lpfc_nodelist *)pmb->context2;
8617 /* Reg_LOGIN of dflt RPI was successful. Now lets get
8618 * RID of the PPI using the same mbox buffer.
8619 */
8620 lpfc_unreg_login(phba, vport->vpi,
8621 pmbox->un.varWords[0], pmb);
8622 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
8623 pmb->context1 = mp;
8624 pmb->context2 = ndlp;
8625 pmb->vport = vport;
8626 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
8627 if (rc != MBX_BUSY)
8628 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
8629 LOG_SLI, "0385 rc should "
8630 "have been MBX_BUSY\n");
8631 if (rc != MBX_NOT_FINISHED)
8632 goto send_current_mbox;
8633 }
8634 }
8635 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
8636 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
8637 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
8638
8639 /* There is mailbox completion work to do */
8640 spin_lock_irqsave(&phba->hbalock, iflags);
8641 __lpfc_mbox_cmpl_put(phba, pmb);
8642 phba->work_ha |= HA_MBATT;
8643 spin_unlock_irqrestore(&phba->hbalock, iflags);
8644 workposted = true;
8645
8646send_current_mbox:
8647 spin_lock_irqsave(&phba->hbalock, iflags);
8648 /* Release the mailbox command posting token */
8649 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8650 /* Setting active mailbox pointer need to be in sync to flag clear */
8651 phba->sli.mbox_active = NULL;
8652 spin_unlock_irqrestore(&phba->hbalock, iflags);
8653 /* Wake up worker thread to post the next pending mailbox command */
8654 lpfc_worker_wake_up(phba);
8655out_no_mqe_complete:
8656 if (bf_get(lpfc_trailer_consumed, mcqe))
8657 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
8658 return workposted;
8659}
8660
8661/**
8662 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
8663 * @phba: Pointer to HBA context object.
8664 * @cqe: Pointer to mailbox completion queue entry.
8665 *
8666 * This routine process a mailbox completion queue entry, it invokes the
8667 * proper mailbox complete handling or asynchrous event handling routine
8668 * according to the MCQE's async bit.
8669 *
8670 * Return: true if work posted to worker thread, otherwise false.
8671 **/
8672static bool
8673lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
8674{
8675 struct lpfc_mcqe mcqe;
8676 bool workposted;
8677
8678 /* Copy the mailbox MCQE and convert endian order as needed */
8679 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
8680
8681 /* Invoke the proper event handling routine */
8682 if (!bf_get(lpfc_trailer_async, &mcqe))
8683 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
8684 else
8685 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
8686 return workposted;
8687}
8688
8689/**
James Smart4f774512009-05-22 14:52:35 -04008690 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
8691 * @phba: Pointer to HBA context object.
8692 * @wcqe: Pointer to work-queue completion queue entry.
8693 *
8694 * This routine handles an ELS work-queue completion event.
8695 *
8696 * Return: true if work posted to worker thread, otherwise false.
8697 **/
8698static bool
8699lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba,
8700 struct lpfc_wcqe_complete *wcqe)
8701{
James Smart4f774512009-05-22 14:52:35 -04008702 struct lpfc_iocbq *irspiocbq;
8703 unsigned long iflags;
James Smart4f774512009-05-22 14:52:35 -04008704
James Smart45ed1192009-10-02 15:17:02 -04008705 /* Get an irspiocbq for later ELS response processing use */
James Smart4f774512009-05-22 14:52:35 -04008706 irspiocbq = lpfc_sli_get_iocbq(phba);
8707 if (!irspiocbq) {
8708 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8709 "0387 Failed to allocate an iocbq\n");
James Smart45ed1192009-10-02 15:17:02 -04008710 return false;
James Smart4f774512009-05-22 14:52:35 -04008711 }
James Smart4f774512009-05-22 14:52:35 -04008712
James Smart45ed1192009-10-02 15:17:02 -04008713 /* Save off the slow-path queue event for work thread to process */
8714 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
James Smart4f774512009-05-22 14:52:35 -04008715 spin_lock_irqsave(&phba->hbalock, iflags);
James Smart4d9ab992009-10-02 15:16:39 -04008716 list_add_tail(&irspiocbq->cq_event.list,
James Smart45ed1192009-10-02 15:17:02 -04008717 &phba->sli4_hba.sp_queue_event);
8718 phba->hba_flag |= HBA_SP_QUEUE_EVT;
James Smart4f774512009-05-22 14:52:35 -04008719 spin_unlock_irqrestore(&phba->hbalock, iflags);
James Smart4f774512009-05-22 14:52:35 -04008720
James Smart45ed1192009-10-02 15:17:02 -04008721 return true;
James Smart4f774512009-05-22 14:52:35 -04008722}
8723
8724/**
8725 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
8726 * @phba: Pointer to HBA context object.
8727 * @wcqe: Pointer to work-queue completion queue entry.
8728 *
8729 * This routine handles slow-path WQ entry comsumed event by invoking the
8730 * proper WQ release routine to the slow-path WQ.
8731 **/
8732static void
8733lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
8734 struct lpfc_wcqe_release *wcqe)
8735{
8736 /* Check for the slow-path ELS work queue */
8737 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
8738 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
8739 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
8740 else
8741 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8742 "2579 Slow-path wqe consume event carries "
8743 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
8744 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
8745 phba->sli4_hba.els_wq->queue_id);
8746}
8747
8748/**
8749 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
8750 * @phba: Pointer to HBA context object.
8751 * @cq: Pointer to a WQ completion queue.
8752 * @wcqe: Pointer to work-queue completion queue entry.
8753 *
8754 * This routine handles an XRI abort event.
8755 *
8756 * Return: true if work posted to worker thread, otherwise false.
8757 **/
8758static bool
8759lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
8760 struct lpfc_queue *cq,
8761 struct sli4_wcqe_xri_aborted *wcqe)
8762{
8763 bool workposted = false;
8764 struct lpfc_cq_event *cq_event;
8765 unsigned long iflags;
8766
8767 /* Allocate a new internal CQ_EVENT entry */
8768 cq_event = lpfc_sli4_cq_event_alloc(phba);
8769 if (!cq_event) {
8770 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8771 "0602 Failed to allocate CQ_EVENT entry\n");
8772 return false;
8773 }
8774
8775 /* Move the CQE into the proper xri abort event list */
8776 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
8777 switch (cq->subtype) {
8778 case LPFC_FCP:
8779 spin_lock_irqsave(&phba->hbalock, iflags);
8780 list_add_tail(&cq_event->list,
8781 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
8782 /* Set the fcp xri abort event flag */
8783 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
8784 spin_unlock_irqrestore(&phba->hbalock, iflags);
8785 workposted = true;
8786 break;
8787 case LPFC_ELS:
8788 spin_lock_irqsave(&phba->hbalock, iflags);
8789 list_add_tail(&cq_event->list,
8790 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
8791 /* Set the els xri abort event flag */
8792 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
8793 spin_unlock_irqrestore(&phba->hbalock, iflags);
8794 workposted = true;
8795 break;
8796 default:
8797 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8798 "0603 Invalid work queue CQE subtype (x%x)\n",
8799 cq->subtype);
8800 workposted = false;
8801 break;
8802 }
8803 return workposted;
8804}
8805
8806/**
James Smart4d9ab992009-10-02 15:16:39 -04008807 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
James Smart4f774512009-05-22 14:52:35 -04008808 * @phba: Pointer to HBA context object.
James Smart4d9ab992009-10-02 15:16:39 -04008809 * @rcqe: Pointer to receive-queue completion queue entry.
James Smart4f774512009-05-22 14:52:35 -04008810 *
James Smart4d9ab992009-10-02 15:16:39 -04008811 * This routine process a receive-queue completion queue entry.
James Smart4f774512009-05-22 14:52:35 -04008812 *
8813 * Return: true if work posted to worker thread, otherwise false.
8814 **/
8815static bool
James Smart4d9ab992009-10-02 15:16:39 -04008816lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
8817{
8818 bool workposted = false;
8819 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
8820 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
8821 struct hbq_dmabuf *dma_buf;
8822 uint32_t status;
8823 unsigned long iflags;
8824
James Smart4d9ab992009-10-02 15:16:39 -04008825 if (bf_get(lpfc_rcqe_rq_id, rcqe) != hrq->queue_id)
8826 goto out;
8827
8828 status = bf_get(lpfc_rcqe_status, rcqe);
8829 switch (status) {
8830 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
8831 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8832 "2537 Receive Frame Truncated!!\n");
8833 case FC_STATUS_RQ_SUCCESS:
James Smart5ffc2662009-11-18 15:39:44 -05008834 lpfc_sli4_rq_release(hrq, drq);
James Smart4d9ab992009-10-02 15:16:39 -04008835 spin_lock_irqsave(&phba->hbalock, iflags);
8836 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
8837 if (!dma_buf) {
8838 spin_unlock_irqrestore(&phba->hbalock, iflags);
8839 goto out;
8840 }
8841 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
8842 /* save off the frame for the word thread to process */
8843 list_add_tail(&dma_buf->cq_event.list,
James Smart45ed1192009-10-02 15:17:02 -04008844 &phba->sli4_hba.sp_queue_event);
James Smart4d9ab992009-10-02 15:16:39 -04008845 /* Frame received */
James Smart45ed1192009-10-02 15:17:02 -04008846 phba->hba_flag |= HBA_SP_QUEUE_EVT;
James Smart4d9ab992009-10-02 15:16:39 -04008847 spin_unlock_irqrestore(&phba->hbalock, iflags);
8848 workposted = true;
8849 break;
8850 case FC_STATUS_INSUFF_BUF_NEED_BUF:
8851 case FC_STATUS_INSUFF_BUF_FRM_DISC:
8852 /* Post more buffers if possible */
8853 spin_lock_irqsave(&phba->hbalock, iflags);
8854 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
8855 spin_unlock_irqrestore(&phba->hbalock, iflags);
8856 workposted = true;
8857 break;
8858 }
8859out:
8860 return workposted;
James Smart4d9ab992009-10-02 15:16:39 -04008861}
8862
8863/**
8864 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
8865 * @phba: Pointer to HBA context object.
8866 * @cq: Pointer to the completion queue.
8867 * @wcqe: Pointer to a completion queue entry.
8868 *
8869 * This routine process a slow-path work-queue or recieve queue completion queue
8870 * entry.
8871 *
8872 * Return: true if work posted to worker thread, otherwise false.
8873 **/
8874static bool
8875lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
James Smart4f774512009-05-22 14:52:35 -04008876 struct lpfc_cqe *cqe)
8877{
James Smart45ed1192009-10-02 15:17:02 -04008878 struct lpfc_cqe cqevt;
James Smart4f774512009-05-22 14:52:35 -04008879 bool workposted = false;
8880
8881 /* Copy the work queue CQE and convert endian order if needed */
James Smart45ed1192009-10-02 15:17:02 -04008882 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
James Smart4f774512009-05-22 14:52:35 -04008883
8884 /* Check and process for different type of WCQE and dispatch */
James Smart45ed1192009-10-02 15:17:02 -04008885 switch (bf_get(lpfc_cqe_code, &cqevt)) {
James Smart4f774512009-05-22 14:52:35 -04008886 case CQE_CODE_COMPL_WQE:
James Smart45ed1192009-10-02 15:17:02 -04008887 /* Process the WQ/RQ complete event */
James Smart4f774512009-05-22 14:52:35 -04008888 workposted = lpfc_sli4_sp_handle_els_wcqe(phba,
James Smart45ed1192009-10-02 15:17:02 -04008889 (struct lpfc_wcqe_complete *)&cqevt);
James Smart4f774512009-05-22 14:52:35 -04008890 break;
8891 case CQE_CODE_RELEASE_WQE:
8892 /* Process the WQ release event */
8893 lpfc_sli4_sp_handle_rel_wcqe(phba,
James Smart45ed1192009-10-02 15:17:02 -04008894 (struct lpfc_wcqe_release *)&cqevt);
James Smart4f774512009-05-22 14:52:35 -04008895 break;
8896 case CQE_CODE_XRI_ABORTED:
8897 /* Process the WQ XRI abort event */
8898 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
James Smart45ed1192009-10-02 15:17:02 -04008899 (struct sli4_wcqe_xri_aborted *)&cqevt);
James Smart4f774512009-05-22 14:52:35 -04008900 break;
James Smart4d9ab992009-10-02 15:16:39 -04008901 case CQE_CODE_RECEIVE:
8902 /* Process the RQ event */
8903 workposted = lpfc_sli4_sp_handle_rcqe(phba,
James Smart45ed1192009-10-02 15:17:02 -04008904 (struct lpfc_rcqe *)&cqevt);
James Smart4d9ab992009-10-02 15:16:39 -04008905 break;
James Smart4f774512009-05-22 14:52:35 -04008906 default:
8907 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8908 "0388 Not a valid WCQE code: x%x\n",
James Smart45ed1192009-10-02 15:17:02 -04008909 bf_get(lpfc_cqe_code, &cqevt));
James Smart4f774512009-05-22 14:52:35 -04008910 break;
8911 }
8912 return workposted;
8913}
8914
8915/**
James Smart4f774512009-05-22 14:52:35 -04008916 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
8917 * @phba: Pointer to HBA context object.
8918 * @eqe: Pointer to fast-path event queue entry.
8919 *
8920 * This routine process a event queue entry from the slow-path event queue.
8921 * It will check the MajorCode and MinorCode to determine this is for a
8922 * completion event on a completion queue, if not, an error shall be logged
8923 * and just return. Otherwise, it will get to the corresponding completion
8924 * queue and process all the entries on that completion queue, rearm the
8925 * completion queue, and then return.
8926 *
8927 **/
8928static void
8929lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
8930{
8931 struct lpfc_queue *cq = NULL, *childq, *speq;
8932 struct lpfc_cqe *cqe;
8933 bool workposted = false;
8934 int ecount = 0;
8935 uint16_t cqid;
8936
8937 if (bf_get(lpfc_eqe_major_code, eqe) != 0 ||
8938 bf_get(lpfc_eqe_minor_code, eqe) != 0) {
8939 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8940 "0359 Not a valid slow-path completion "
8941 "event: majorcode=x%x, minorcode=x%x\n",
8942 bf_get(lpfc_eqe_major_code, eqe),
8943 bf_get(lpfc_eqe_minor_code, eqe));
8944 return;
8945 }
8946
8947 /* Get the reference to the corresponding CQ */
8948 cqid = bf_get(lpfc_eqe_resource_id, eqe);
8949
8950 /* Search for completion queue pointer matching this cqid */
8951 speq = phba->sli4_hba.sp_eq;
8952 list_for_each_entry(childq, &speq->child_list, list) {
8953 if (childq->queue_id == cqid) {
8954 cq = childq;
8955 break;
8956 }
8957 }
8958 if (unlikely(!cq)) {
8959 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8960 "0365 Slow-path CQ identifier (%d) does "
8961 "not exist\n", cqid);
8962 return;
8963 }
8964
8965 /* Process all the entries to the CQ */
8966 switch (cq->type) {
8967 case LPFC_MCQ:
8968 while ((cqe = lpfc_sli4_cq_get(cq))) {
8969 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
8970 if (!(++ecount % LPFC_GET_QE_REL_INT))
8971 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
8972 }
8973 break;
8974 case LPFC_WCQ:
8975 while ((cqe = lpfc_sli4_cq_get(cq))) {
James Smart4d9ab992009-10-02 15:16:39 -04008976 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq, cqe);
James Smart4f774512009-05-22 14:52:35 -04008977 if (!(++ecount % LPFC_GET_QE_REL_INT))
8978 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
8979 }
8980 break;
8981 default:
8982 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8983 "0370 Invalid completion queue type (%d)\n",
8984 cq->type);
8985 return;
8986 }
8987
8988 /* Catch the no cq entry condition, log an error */
8989 if (unlikely(ecount == 0))
8990 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8991 "0371 No entry from the CQ: identifier "
8992 "(x%x), type (%d)\n", cq->queue_id, cq->type);
8993
8994 /* In any case, flash and re-arm the RCQ */
8995 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
8996
8997 /* wake up worker thread if there are works to be done */
8998 if (workposted)
8999 lpfc_worker_wake_up(phba);
9000}
9001
9002/**
9003 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
9004 * @eqe: Pointer to fast-path completion queue entry.
9005 *
9006 * This routine process a fast-path work queue completion entry from fast-path
9007 * event queue for FCP command response completion.
9008 **/
9009static void
9010lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba,
9011 struct lpfc_wcqe_complete *wcqe)
9012{
9013 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
9014 struct lpfc_iocbq *cmdiocbq;
9015 struct lpfc_iocbq irspiocbq;
9016 unsigned long iflags;
9017
9018 spin_lock_irqsave(&phba->hbalock, iflags);
9019 pring->stats.iocb_event++;
9020 spin_unlock_irqrestore(&phba->hbalock, iflags);
9021
9022 /* Check for response status */
9023 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
9024 /* If resource errors reported from HBA, reduce queue
9025 * depth of the SCSI device.
9026 */
9027 if ((bf_get(lpfc_wcqe_c_status, wcqe) ==
9028 IOSTAT_LOCAL_REJECT) &&
9029 (wcqe->parameter == IOERR_NO_RESOURCES)) {
9030 phba->lpfc_rampdown_queue_depth(phba);
9031 }
9032 /* Log the error status */
9033 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9034 "0373 FCP complete error: status=x%x, "
9035 "hw_status=x%x, total_data_specified=%d, "
9036 "parameter=x%x, word3=x%x\n",
9037 bf_get(lpfc_wcqe_c_status, wcqe),
9038 bf_get(lpfc_wcqe_c_hw_status, wcqe),
9039 wcqe->total_data_placed, wcqe->parameter,
9040 wcqe->word3);
9041 }
9042
9043 /* Look up the FCP command IOCB and create pseudo response IOCB */
9044 spin_lock_irqsave(&phba->hbalock, iflags);
9045 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
9046 bf_get(lpfc_wcqe_c_request_tag, wcqe));
9047 spin_unlock_irqrestore(&phba->hbalock, iflags);
9048 if (unlikely(!cmdiocbq)) {
9049 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9050 "0374 FCP complete with no corresponding "
9051 "cmdiocb: iotag (%d)\n",
9052 bf_get(lpfc_wcqe_c_request_tag, wcqe));
9053 return;
9054 }
9055 if (unlikely(!cmdiocbq->iocb_cmpl)) {
9056 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9057 "0375 FCP cmdiocb not callback function "
9058 "iotag: (%d)\n",
9059 bf_get(lpfc_wcqe_c_request_tag, wcqe));
9060 return;
9061 }
9062
9063 /* Fake the irspiocb and copy necessary response information */
James Smart341af102010-01-26 23:07:37 -05009064 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
James Smart4f774512009-05-22 14:52:35 -04009065
9066 /* Pass the cmd_iocb and the rsp state to the upper layer */
9067 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
9068}
9069
9070/**
9071 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
9072 * @phba: Pointer to HBA context object.
9073 * @cq: Pointer to completion queue.
9074 * @wcqe: Pointer to work-queue completion queue entry.
9075 *
9076 * This routine handles an fast-path WQ entry comsumed event by invoking the
9077 * proper WQ release routine to the slow-path WQ.
9078 **/
9079static void
9080lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
9081 struct lpfc_wcqe_release *wcqe)
9082{
9083 struct lpfc_queue *childwq;
9084 bool wqid_matched = false;
9085 uint16_t fcp_wqid;
9086
9087 /* Check for fast-path FCP work queue release */
9088 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
9089 list_for_each_entry(childwq, &cq->child_list, list) {
9090 if (childwq->queue_id == fcp_wqid) {
9091 lpfc_sli4_wq_release(childwq,
9092 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
9093 wqid_matched = true;
9094 break;
9095 }
9096 }
9097 /* Report warning log message if no match found */
9098 if (wqid_matched != true)
9099 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9100 "2580 Fast-path wqe consume event carries "
9101 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
9102}
9103
9104/**
9105 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
9106 * @cq: Pointer to the completion queue.
9107 * @eqe: Pointer to fast-path completion queue entry.
9108 *
9109 * This routine process a fast-path work queue completion entry from fast-path
9110 * event queue for FCP command response completion.
9111 **/
9112static int
9113lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
9114 struct lpfc_cqe *cqe)
9115{
9116 struct lpfc_wcqe_release wcqe;
9117 bool workposted = false;
9118
9119 /* Copy the work queue CQE and convert endian order if needed */
9120 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
9121
9122 /* Check and process for different type of WCQE and dispatch */
9123 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
9124 case CQE_CODE_COMPL_WQE:
9125 /* Process the WQ complete event */
9126 lpfc_sli4_fp_handle_fcp_wcqe(phba,
9127 (struct lpfc_wcqe_complete *)&wcqe);
9128 break;
9129 case CQE_CODE_RELEASE_WQE:
9130 /* Process the WQ release event */
9131 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
9132 (struct lpfc_wcqe_release *)&wcqe);
9133 break;
9134 case CQE_CODE_XRI_ABORTED:
9135 /* Process the WQ XRI abort event */
9136 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
9137 (struct sli4_wcqe_xri_aborted *)&wcqe);
9138 break;
9139 default:
9140 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9141 "0144 Not a valid WCQE code: x%x\n",
9142 bf_get(lpfc_wcqe_c_code, &wcqe));
9143 break;
9144 }
9145 return workposted;
9146}
9147
9148/**
9149 * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
9150 * @phba: Pointer to HBA context object.
9151 * @eqe: Pointer to fast-path event queue entry.
9152 *
9153 * This routine process a event queue entry from the fast-path event queue.
9154 * It will check the MajorCode and MinorCode to determine this is for a
9155 * completion event on a completion queue, if not, an error shall be logged
9156 * and just return. Otherwise, it will get to the corresponding completion
9157 * queue and process all the entries on the completion queue, rearm the
9158 * completion queue, and then return.
9159 **/
9160static void
9161lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
9162 uint32_t fcp_cqidx)
9163{
9164 struct lpfc_queue *cq;
9165 struct lpfc_cqe *cqe;
9166 bool workposted = false;
9167 uint16_t cqid;
9168 int ecount = 0;
9169
9170 if (unlikely(bf_get(lpfc_eqe_major_code, eqe) != 0) ||
9171 unlikely(bf_get(lpfc_eqe_minor_code, eqe) != 0)) {
9172 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9173 "0366 Not a valid fast-path completion "
9174 "event: majorcode=x%x, minorcode=x%x\n",
9175 bf_get(lpfc_eqe_major_code, eqe),
9176 bf_get(lpfc_eqe_minor_code, eqe));
9177 return;
9178 }
9179
9180 cq = phba->sli4_hba.fcp_cq[fcp_cqidx];
9181 if (unlikely(!cq)) {
9182 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9183 "0367 Fast-path completion queue does not "
9184 "exist\n");
9185 return;
9186 }
9187
9188 /* Get the reference to the corresponding CQ */
9189 cqid = bf_get(lpfc_eqe_resource_id, eqe);
9190 if (unlikely(cqid != cq->queue_id)) {
9191 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9192 "0368 Miss-matched fast-path completion "
9193 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
9194 cqid, cq->queue_id);
9195 return;
9196 }
9197
9198 /* Process all the entries to the CQ */
9199 while ((cqe = lpfc_sli4_cq_get(cq))) {
9200 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
9201 if (!(++ecount % LPFC_GET_QE_REL_INT))
9202 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
9203 }
9204
9205 /* Catch the no cq entry condition */
9206 if (unlikely(ecount == 0))
9207 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9208 "0369 No entry from fast-path completion "
9209 "queue fcpcqid=%d\n", cq->queue_id);
9210
9211 /* In any case, flash and re-arm the CQ */
9212 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
9213
9214 /* wake up worker thread if there are works to be done */
9215 if (workposted)
9216 lpfc_worker_wake_up(phba);
9217}
9218
9219static void
9220lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
9221{
9222 struct lpfc_eqe *eqe;
9223
9224 /* walk all the EQ entries and drop on the floor */
9225 while ((eqe = lpfc_sli4_eq_get(eq)))
9226 ;
9227
9228 /* Clear and re-arm the EQ */
9229 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
9230}
9231
9232/**
9233 * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
9234 * @irq: Interrupt number.
9235 * @dev_id: The device context pointer.
9236 *
9237 * This function is directly called from the PCI layer as an interrupt
9238 * service routine when device with SLI-4 interface spec is enabled with
9239 * MSI-X multi-message interrupt mode and there are slow-path events in
9240 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
9241 * interrupt mode, this function is called as part of the device-level
9242 * interrupt handler. When the PCI slot is in error recovery or the HBA is
9243 * undergoing initialization, the interrupt handler will not process the
9244 * interrupt. The link attention and ELS ring attention events are handled
9245 * by the worker thread. The interrupt handler signals the worker thread
9246 * and returns for these events. This function is called without any lock
9247 * held. It gets the hbalock to access and update SLI data structures.
9248 *
9249 * This function returns IRQ_HANDLED when interrupt is handled else it
9250 * returns IRQ_NONE.
9251 **/
9252irqreturn_t
9253lpfc_sli4_sp_intr_handler(int irq, void *dev_id)
9254{
9255 struct lpfc_hba *phba;
9256 struct lpfc_queue *speq;
9257 struct lpfc_eqe *eqe;
9258 unsigned long iflag;
9259 int ecount = 0;
9260
9261 /*
9262 * Get the driver's phba structure from the dev_id
9263 */
9264 phba = (struct lpfc_hba *)dev_id;
9265
9266 if (unlikely(!phba))
9267 return IRQ_NONE;
9268
9269 /* Get to the EQ struct associated with this vector */
9270 speq = phba->sli4_hba.sp_eq;
9271
9272 /* Check device state for handling interrupt */
9273 if (unlikely(lpfc_intr_state_check(phba))) {
9274 /* Check again for link_state with lock held */
9275 spin_lock_irqsave(&phba->hbalock, iflag);
9276 if (phba->link_state < LPFC_LINK_DOWN)
9277 /* Flush, clear interrupt, and rearm the EQ */
9278 lpfc_sli4_eq_flush(phba, speq);
9279 spin_unlock_irqrestore(&phba->hbalock, iflag);
9280 return IRQ_NONE;
9281 }
9282
9283 /*
9284 * Process all the event on FCP slow-path EQ
9285 */
9286 while ((eqe = lpfc_sli4_eq_get(speq))) {
9287 lpfc_sli4_sp_handle_eqe(phba, eqe);
9288 if (!(++ecount % LPFC_GET_QE_REL_INT))
9289 lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM);
9290 }
9291
9292 /* Always clear and re-arm the slow-path EQ */
9293 lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM);
9294
9295 /* Catch the no cq entry condition */
9296 if (unlikely(ecount == 0)) {
9297 if (phba->intr_type == MSIX)
9298 /* MSI-X treated interrupt served as no EQ share INT */
9299 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9300 "0357 MSI-X interrupt with no EQE\n");
9301 else
9302 /* Non MSI-X treated on interrupt as EQ share INT */
9303 return IRQ_NONE;
9304 }
9305
9306 return IRQ_HANDLED;
9307} /* lpfc_sli4_sp_intr_handler */
9308
9309/**
9310 * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
9311 * @irq: Interrupt number.
9312 * @dev_id: The device context pointer.
9313 *
9314 * This function is directly called from the PCI layer as an interrupt
9315 * service routine when device with SLI-4 interface spec is enabled with
9316 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
9317 * ring event in the HBA. However, when the device is enabled with either
9318 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
9319 * device-level interrupt handler. When the PCI slot is in error recovery
9320 * or the HBA is undergoing initialization, the interrupt handler will not
9321 * process the interrupt. The SCSI FCP fast-path ring event are handled in
9322 * the intrrupt context. This function is called without any lock held.
9323 * It gets the hbalock to access and update SLI data structures. Note that,
9324 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
9325 * equal to that of FCP CQ index.
9326 *
9327 * This function returns IRQ_HANDLED when interrupt is handled else it
9328 * returns IRQ_NONE.
9329 **/
9330irqreturn_t
9331lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
9332{
9333 struct lpfc_hba *phba;
9334 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
9335 struct lpfc_queue *fpeq;
9336 struct lpfc_eqe *eqe;
9337 unsigned long iflag;
9338 int ecount = 0;
9339 uint32_t fcp_eqidx;
9340
9341 /* Get the driver's phba structure from the dev_id */
9342 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
9343 phba = fcp_eq_hdl->phba;
9344 fcp_eqidx = fcp_eq_hdl->idx;
9345
9346 if (unlikely(!phba))
9347 return IRQ_NONE;
9348
9349 /* Get to the EQ struct associated with this vector */
9350 fpeq = phba->sli4_hba.fp_eq[fcp_eqidx];
9351
9352 /* Check device state for handling interrupt */
9353 if (unlikely(lpfc_intr_state_check(phba))) {
9354 /* Check again for link_state with lock held */
9355 spin_lock_irqsave(&phba->hbalock, iflag);
9356 if (phba->link_state < LPFC_LINK_DOWN)
9357 /* Flush, clear interrupt, and rearm the EQ */
9358 lpfc_sli4_eq_flush(phba, fpeq);
9359 spin_unlock_irqrestore(&phba->hbalock, iflag);
9360 return IRQ_NONE;
9361 }
9362
9363 /*
9364 * Process all the event on FCP fast-path EQ
9365 */
9366 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
9367 lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx);
9368 if (!(++ecount % LPFC_GET_QE_REL_INT))
9369 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
9370 }
9371
9372 /* Always clear and re-arm the fast-path EQ */
9373 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
9374
9375 if (unlikely(ecount == 0)) {
9376 if (phba->intr_type == MSIX)
9377 /* MSI-X treated interrupt served as no EQ share INT */
9378 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9379 "0358 MSI-X interrupt with no EQE\n");
9380 else
9381 /* Non MSI-X treated on interrupt as EQ share INT */
9382 return IRQ_NONE;
9383 }
9384
9385 return IRQ_HANDLED;
9386} /* lpfc_sli4_fp_intr_handler */
9387
9388/**
9389 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
9390 * @irq: Interrupt number.
9391 * @dev_id: The device context pointer.
9392 *
9393 * This function is the device-level interrupt handler to device with SLI-4
9394 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
9395 * interrupt mode is enabled and there is an event in the HBA which requires
9396 * driver attention. This function invokes the slow-path interrupt attention
9397 * handling function and fast-path interrupt attention handling function in
9398 * turn to process the relevant HBA attention events. This function is called
9399 * without any lock held. It gets the hbalock to access and update SLI data
9400 * structures.
9401 *
9402 * This function returns IRQ_HANDLED when interrupt is handled, else it
9403 * returns IRQ_NONE.
9404 **/
9405irqreturn_t
9406lpfc_sli4_intr_handler(int irq, void *dev_id)
9407{
9408 struct lpfc_hba *phba;
9409 irqreturn_t sp_irq_rc, fp_irq_rc;
9410 bool fp_handled = false;
9411 uint32_t fcp_eqidx;
9412
9413 /* Get the driver's phba structure from the dev_id */
9414 phba = (struct lpfc_hba *)dev_id;
9415
9416 if (unlikely(!phba))
9417 return IRQ_NONE;
9418
9419 /*
9420 * Invokes slow-path host attention interrupt handling as appropriate.
9421 */
9422 sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id);
9423
9424 /*
9425 * Invoke fast-path host attention interrupt handling as appropriate.
9426 */
9427 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
9428 fp_irq_rc = lpfc_sli4_fp_intr_handler(irq,
9429 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
9430 if (fp_irq_rc == IRQ_HANDLED)
9431 fp_handled |= true;
9432 }
9433
9434 return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc;
9435} /* lpfc_sli4_intr_handler */
9436
9437/**
9438 * lpfc_sli4_queue_free - free a queue structure and associated memory
9439 * @queue: The queue structure to free.
9440 *
9441 * This function frees a queue structure and the DMAable memeory used for
9442 * the host resident queue. This function must be called after destroying the
9443 * queue on the HBA.
9444 **/
9445void
9446lpfc_sli4_queue_free(struct lpfc_queue *queue)
9447{
9448 struct lpfc_dmabuf *dmabuf;
9449
9450 if (!queue)
9451 return;
9452
9453 while (!list_empty(&queue->page_list)) {
9454 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
9455 list);
9456 dma_free_coherent(&queue->phba->pcidev->dev, PAGE_SIZE,
9457 dmabuf->virt, dmabuf->phys);
9458 kfree(dmabuf);
9459 }
9460 kfree(queue);
9461 return;
9462}
9463
9464/**
9465 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
9466 * @phba: The HBA that this queue is being created on.
9467 * @entry_size: The size of each queue entry for this queue.
9468 * @entry count: The number of entries that this queue will handle.
9469 *
9470 * This function allocates a queue structure and the DMAable memory used for
9471 * the host resident queue. This function must be called before creating the
9472 * queue on the HBA.
9473 **/
9474struct lpfc_queue *
9475lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
9476 uint32_t entry_count)
9477{
9478 struct lpfc_queue *queue;
9479 struct lpfc_dmabuf *dmabuf;
9480 int x, total_qe_count;
9481 void *dma_pointer;
9482
9483
9484 queue = kzalloc(sizeof(struct lpfc_queue) +
9485 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
9486 if (!queue)
9487 return NULL;
9488 queue->page_count = (PAGE_ALIGN(entry_size * entry_count))/PAGE_SIZE;
9489 INIT_LIST_HEAD(&queue->list);
9490 INIT_LIST_HEAD(&queue->page_list);
9491 INIT_LIST_HEAD(&queue->child_list);
9492 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
9493 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
9494 if (!dmabuf)
9495 goto out_fail;
9496 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
9497 PAGE_SIZE, &dmabuf->phys,
9498 GFP_KERNEL);
9499 if (!dmabuf->virt) {
9500 kfree(dmabuf);
9501 goto out_fail;
9502 }
James Smartd11e31d2009-06-10 17:23:06 -04009503 memset(dmabuf->virt, 0, PAGE_SIZE);
James Smart4f774512009-05-22 14:52:35 -04009504 dmabuf->buffer_tag = x;
9505 list_add_tail(&dmabuf->list, &queue->page_list);
9506 /* initialize queue's entry array */
9507 dma_pointer = dmabuf->virt;
9508 for (; total_qe_count < entry_count &&
9509 dma_pointer < (PAGE_SIZE + dmabuf->virt);
9510 total_qe_count++, dma_pointer += entry_size) {
9511 queue->qe[total_qe_count].address = dma_pointer;
9512 }
9513 }
9514 queue->entry_size = entry_size;
9515 queue->entry_count = entry_count;
9516 queue->phba = phba;
9517
9518 return queue;
9519out_fail:
9520 lpfc_sli4_queue_free(queue);
9521 return NULL;
9522}
9523
9524/**
9525 * lpfc_eq_create - Create an Event Queue on the HBA
9526 * @phba: HBA structure that indicates port to create a queue on.
9527 * @eq: The queue structure to use to create the event queue.
9528 * @imax: The maximum interrupt per second limit.
9529 *
9530 * This function creates an event queue, as detailed in @eq, on a port,
9531 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
9532 *
9533 * The @phba struct is used to send mailbox command to HBA. The @eq struct
9534 * is used to get the entry count and entry size that are necessary to
9535 * determine the number of pages to allocate and use for this queue. This
9536 * function will send the EQ_CREATE mailbox command to the HBA to setup the
9537 * event queue. This function is asynchronous and will wait for the mailbox
9538 * command to finish before continuing.
9539 *
9540 * On success this function will return a zero. If unable to allocate enough
9541 * memory this function will return ENOMEM. If the queue create mailbox command
9542 * fails this function will return ENXIO.
9543 **/
9544uint32_t
9545lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax)
9546{
9547 struct lpfc_mbx_eq_create *eq_create;
9548 LPFC_MBOXQ_t *mbox;
9549 int rc, length, status = 0;
9550 struct lpfc_dmabuf *dmabuf;
9551 uint32_t shdr_status, shdr_add_status;
9552 union lpfc_sli4_cfg_shdr *shdr;
9553 uint16_t dmult;
9554
9555 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9556 if (!mbox)
9557 return -ENOMEM;
9558 length = (sizeof(struct lpfc_mbx_eq_create) -
9559 sizeof(struct lpfc_sli4_cfg_mhdr));
9560 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9561 LPFC_MBOX_OPCODE_EQ_CREATE,
9562 length, LPFC_SLI4_MBX_EMBED);
9563 eq_create = &mbox->u.mqe.un.eq_create;
9564 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
9565 eq->page_count);
9566 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
9567 LPFC_EQE_SIZE);
9568 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
9569 /* Calculate delay multiper from maximum interrupt per second */
9570 dmult = LPFC_DMULT_CONST/imax - 1;
9571 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
9572 dmult);
9573 switch (eq->entry_count) {
9574 default:
9575 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9576 "0360 Unsupported EQ count. (%d)\n",
9577 eq->entry_count);
9578 if (eq->entry_count < 256)
9579 return -EINVAL;
9580 /* otherwise default to smallest count (drop through) */
9581 case 256:
9582 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9583 LPFC_EQ_CNT_256);
9584 break;
9585 case 512:
9586 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9587 LPFC_EQ_CNT_512);
9588 break;
9589 case 1024:
9590 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9591 LPFC_EQ_CNT_1024);
9592 break;
9593 case 2048:
9594 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9595 LPFC_EQ_CNT_2048);
9596 break;
9597 case 4096:
9598 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9599 LPFC_EQ_CNT_4096);
9600 break;
9601 }
9602 list_for_each_entry(dmabuf, &eq->page_list, list) {
9603 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9604 putPaddrLow(dmabuf->phys);
9605 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9606 putPaddrHigh(dmabuf->phys);
9607 }
9608 mbox->vport = phba->pport;
9609 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
9610 mbox->context1 = NULL;
9611 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9612 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
9613 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9614 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9615 if (shdr_status || shdr_add_status || rc) {
9616 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9617 "2500 EQ_CREATE mailbox failed with "
9618 "status x%x add_status x%x, mbx status x%x\n",
9619 shdr_status, shdr_add_status, rc);
9620 status = -ENXIO;
9621 }
9622 eq->type = LPFC_EQ;
9623 eq->subtype = LPFC_NONE;
9624 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
9625 if (eq->queue_id == 0xFFFF)
9626 status = -ENXIO;
9627 eq->host_index = 0;
9628 eq->hba_index = 0;
9629
James Smart8fa38512009-07-19 10:01:03 -04009630 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -04009631 return status;
9632}
9633
9634/**
9635 * lpfc_cq_create - Create a Completion Queue on the HBA
9636 * @phba: HBA structure that indicates port to create a queue on.
9637 * @cq: The queue structure to use to create the completion queue.
9638 * @eq: The event queue to bind this completion queue to.
9639 *
9640 * This function creates a completion queue, as detailed in @wq, on a port,
9641 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
9642 *
9643 * The @phba struct is used to send mailbox command to HBA. The @cq struct
9644 * is used to get the entry count and entry size that are necessary to
9645 * determine the number of pages to allocate and use for this queue. The @eq
9646 * is used to indicate which event queue to bind this completion queue to. This
9647 * function will send the CQ_CREATE mailbox command to the HBA to setup the
9648 * completion queue. This function is asynchronous and will wait for the mailbox
9649 * command to finish before continuing.
9650 *
9651 * On success this function will return a zero. If unable to allocate enough
9652 * memory this function will return ENOMEM. If the queue create mailbox command
9653 * fails this function will return ENXIO.
9654 **/
9655uint32_t
9656lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
9657 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
9658{
9659 struct lpfc_mbx_cq_create *cq_create;
9660 struct lpfc_dmabuf *dmabuf;
9661 LPFC_MBOXQ_t *mbox;
9662 int rc, length, status = 0;
9663 uint32_t shdr_status, shdr_add_status;
9664 union lpfc_sli4_cfg_shdr *shdr;
9665
9666 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9667 if (!mbox)
9668 return -ENOMEM;
9669 length = (sizeof(struct lpfc_mbx_cq_create) -
9670 sizeof(struct lpfc_sli4_cfg_mhdr));
9671 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9672 LPFC_MBOX_OPCODE_CQ_CREATE,
9673 length, LPFC_SLI4_MBX_EMBED);
9674 cq_create = &mbox->u.mqe.un.cq_create;
9675 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
9676 cq->page_count);
9677 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
9678 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
9679 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context, eq->queue_id);
9680 switch (cq->entry_count) {
9681 default:
9682 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9683 "0361 Unsupported CQ count. (%d)\n",
9684 cq->entry_count);
9685 if (cq->entry_count < 256)
9686 return -EINVAL;
9687 /* otherwise default to smallest count (drop through) */
9688 case 256:
9689 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9690 LPFC_CQ_CNT_256);
9691 break;
9692 case 512:
9693 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9694 LPFC_CQ_CNT_512);
9695 break;
9696 case 1024:
9697 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9698 LPFC_CQ_CNT_1024);
9699 break;
9700 }
9701 list_for_each_entry(dmabuf, &cq->page_list, list) {
9702 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9703 putPaddrLow(dmabuf->phys);
9704 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9705 putPaddrHigh(dmabuf->phys);
9706 }
9707 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9708
9709 /* The IOCTL status is embedded in the mailbox subheader. */
9710 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
9711 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9712 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9713 if (shdr_status || shdr_add_status || rc) {
9714 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9715 "2501 CQ_CREATE mailbox failed with "
9716 "status x%x add_status x%x, mbx status x%x\n",
9717 shdr_status, shdr_add_status, rc);
9718 status = -ENXIO;
9719 goto out;
9720 }
9721 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
9722 if (cq->queue_id == 0xFFFF) {
9723 status = -ENXIO;
9724 goto out;
9725 }
9726 /* link the cq onto the parent eq child list */
9727 list_add_tail(&cq->list, &eq->child_list);
9728 /* Set up completion queue's type and subtype */
9729 cq->type = type;
9730 cq->subtype = subtype;
9731 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
9732 cq->host_index = 0;
9733 cq->hba_index = 0;
James Smart4f774512009-05-22 14:52:35 -04009734
James Smart8fa38512009-07-19 10:01:03 -04009735out:
9736 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -04009737 return status;
9738}
9739
9740/**
James Smart04c68492009-05-22 14:52:52 -04009741 * lpfc_mq_create - Create a mailbox Queue on the HBA
9742 * @phba: HBA structure that indicates port to create a queue on.
9743 * @mq: The queue structure to use to create the mailbox queue.
9744 *
9745 * This function creates a mailbox queue, as detailed in @mq, on a port,
9746 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
9747 *
9748 * The @phba struct is used to send mailbox command to HBA. The @cq struct
9749 * is used to get the entry count and entry size that are necessary to
9750 * determine the number of pages to allocate and use for this queue. This
9751 * function will send the MQ_CREATE mailbox command to the HBA to setup the
9752 * mailbox queue. This function is asynchronous and will wait for the mailbox
9753 * command to finish before continuing.
9754 *
9755 * On success this function will return a zero. If unable to allocate enough
9756 * memory this function will return ENOMEM. If the queue create mailbox command
9757 * fails this function will return ENXIO.
9758 **/
9759uint32_t
9760lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
9761 struct lpfc_queue *cq, uint32_t subtype)
9762{
9763 struct lpfc_mbx_mq_create *mq_create;
9764 struct lpfc_dmabuf *dmabuf;
9765 LPFC_MBOXQ_t *mbox;
9766 int rc, length, status = 0;
9767 uint32_t shdr_status, shdr_add_status;
9768 union lpfc_sli4_cfg_shdr *shdr;
9769
9770 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9771 if (!mbox)
9772 return -ENOMEM;
9773 length = (sizeof(struct lpfc_mbx_mq_create) -
9774 sizeof(struct lpfc_sli4_cfg_mhdr));
9775 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9776 LPFC_MBOX_OPCODE_MQ_CREATE,
9777 length, LPFC_SLI4_MBX_EMBED);
9778 mq_create = &mbox->u.mqe.un.mq_create;
9779 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
9780 mq->page_count);
9781 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
9782 cq->queue_id);
9783 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
9784 switch (mq->entry_count) {
9785 default:
9786 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9787 "0362 Unsupported MQ count. (%d)\n",
9788 mq->entry_count);
9789 if (mq->entry_count < 16)
9790 return -EINVAL;
9791 /* otherwise default to smallest count (drop through) */
9792 case 16:
9793 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9794 LPFC_MQ_CNT_16);
9795 break;
9796 case 32:
9797 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9798 LPFC_MQ_CNT_32);
9799 break;
9800 case 64:
9801 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9802 LPFC_MQ_CNT_64);
9803 break;
9804 case 128:
9805 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9806 LPFC_MQ_CNT_128);
9807 break;
9808 }
9809 list_for_each_entry(dmabuf, &mq->page_list, list) {
9810 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9811 putPaddrLow(dmabuf->phys);
9812 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9813 putPaddrHigh(dmabuf->phys);
9814 }
9815 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9816 /* The IOCTL status is embedded in the mailbox subheader. */
9817 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
9818 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9819 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9820 if (shdr_status || shdr_add_status || rc) {
9821 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9822 "2502 MQ_CREATE mailbox failed with "
9823 "status x%x add_status x%x, mbx status x%x\n",
9824 shdr_status, shdr_add_status, rc);
9825 status = -ENXIO;
9826 goto out;
9827 }
9828 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id, &mq_create->u.response);
9829 if (mq->queue_id == 0xFFFF) {
9830 status = -ENXIO;
9831 goto out;
9832 }
9833 mq->type = LPFC_MQ;
9834 mq->subtype = subtype;
9835 mq->host_index = 0;
9836 mq->hba_index = 0;
9837
9838 /* link the mq onto the parent cq child list */
9839 list_add_tail(&mq->list, &cq->child_list);
9840out:
James Smart8fa38512009-07-19 10:01:03 -04009841 mempool_free(mbox, phba->mbox_mem_pool);
James Smart04c68492009-05-22 14:52:52 -04009842 return status;
9843}
9844
9845/**
James Smart4f774512009-05-22 14:52:35 -04009846 * lpfc_wq_create - Create a Work Queue on the HBA
9847 * @phba: HBA structure that indicates port to create a queue on.
9848 * @wq: The queue structure to use to create the work queue.
9849 * @cq: The completion queue to bind this work queue to.
9850 * @subtype: The subtype of the work queue indicating its functionality.
9851 *
9852 * This function creates a work queue, as detailed in @wq, on a port, described
9853 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
9854 *
9855 * The @phba struct is used to send mailbox command to HBA. The @wq struct
9856 * is used to get the entry count and entry size that are necessary to
9857 * determine the number of pages to allocate and use for this queue. The @cq
9858 * is used to indicate which completion queue to bind this work queue to. This
9859 * function will send the WQ_CREATE mailbox command to the HBA to setup the
9860 * work queue. This function is asynchronous and will wait for the mailbox
9861 * command to finish before continuing.
9862 *
9863 * On success this function will return a zero. If unable to allocate enough
9864 * memory this function will return ENOMEM. If the queue create mailbox command
9865 * fails this function will return ENXIO.
9866 **/
9867uint32_t
9868lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
9869 struct lpfc_queue *cq, uint32_t subtype)
9870{
9871 struct lpfc_mbx_wq_create *wq_create;
9872 struct lpfc_dmabuf *dmabuf;
9873 LPFC_MBOXQ_t *mbox;
9874 int rc, length, status = 0;
9875 uint32_t shdr_status, shdr_add_status;
9876 union lpfc_sli4_cfg_shdr *shdr;
9877
9878 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9879 if (!mbox)
9880 return -ENOMEM;
9881 length = (sizeof(struct lpfc_mbx_wq_create) -
9882 sizeof(struct lpfc_sli4_cfg_mhdr));
9883 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
9884 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
9885 length, LPFC_SLI4_MBX_EMBED);
9886 wq_create = &mbox->u.mqe.un.wq_create;
9887 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
9888 wq->page_count);
9889 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
9890 cq->queue_id);
9891 list_for_each_entry(dmabuf, &wq->page_list, list) {
9892 wq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9893 putPaddrLow(dmabuf->phys);
9894 wq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9895 putPaddrHigh(dmabuf->phys);
9896 }
9897 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9898 /* The IOCTL status is embedded in the mailbox subheader. */
9899 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
9900 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9901 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9902 if (shdr_status || shdr_add_status || rc) {
9903 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9904 "2503 WQ_CREATE mailbox failed with "
9905 "status x%x add_status x%x, mbx status x%x\n",
9906 shdr_status, shdr_add_status, rc);
9907 status = -ENXIO;
9908 goto out;
9909 }
9910 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
9911 if (wq->queue_id == 0xFFFF) {
9912 status = -ENXIO;
9913 goto out;
9914 }
9915 wq->type = LPFC_WQ;
9916 wq->subtype = subtype;
9917 wq->host_index = 0;
9918 wq->hba_index = 0;
9919
9920 /* link the wq onto the parent cq child list */
9921 list_add_tail(&wq->list, &cq->child_list);
9922out:
James Smart8fa38512009-07-19 10:01:03 -04009923 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -04009924 return status;
9925}
9926
9927/**
9928 * lpfc_rq_create - Create a Receive Queue on the HBA
9929 * @phba: HBA structure that indicates port to create a queue on.
9930 * @hrq: The queue structure to use to create the header receive queue.
9931 * @drq: The queue structure to use to create the data receive queue.
9932 * @cq: The completion queue to bind this work queue to.
9933 *
9934 * This function creates a receive buffer queue pair , as detailed in @hrq and
9935 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
9936 * to the HBA.
9937 *
9938 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
9939 * struct is used to get the entry count that is necessary to determine the
9940 * number of pages to use for this queue. The @cq is used to indicate which
9941 * completion queue to bind received buffers that are posted to these queues to.
9942 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
9943 * receive queue pair. This function is asynchronous and will wait for the
9944 * mailbox command to finish before continuing.
9945 *
9946 * On success this function will return a zero. If unable to allocate enough
9947 * memory this function will return ENOMEM. If the queue create mailbox command
9948 * fails this function will return ENXIO.
9949 **/
9950uint32_t
9951lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
9952 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
9953{
9954 struct lpfc_mbx_rq_create *rq_create;
9955 struct lpfc_dmabuf *dmabuf;
9956 LPFC_MBOXQ_t *mbox;
9957 int rc, length, status = 0;
9958 uint32_t shdr_status, shdr_add_status;
9959 union lpfc_sli4_cfg_shdr *shdr;
9960
9961 if (hrq->entry_count != drq->entry_count)
9962 return -EINVAL;
9963 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9964 if (!mbox)
9965 return -ENOMEM;
9966 length = (sizeof(struct lpfc_mbx_rq_create) -
9967 sizeof(struct lpfc_sli4_cfg_mhdr));
9968 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
9969 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
9970 length, LPFC_SLI4_MBX_EMBED);
9971 rq_create = &mbox->u.mqe.un.rq_create;
9972 switch (hrq->entry_count) {
9973 default:
9974 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9975 "2535 Unsupported RQ count. (%d)\n",
9976 hrq->entry_count);
9977 if (hrq->entry_count < 512)
9978 return -EINVAL;
9979 /* otherwise default to smallest count (drop through) */
9980 case 512:
9981 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9982 LPFC_RQ_RING_SIZE_512);
9983 break;
9984 case 1024:
9985 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9986 LPFC_RQ_RING_SIZE_1024);
9987 break;
9988 case 2048:
9989 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9990 LPFC_RQ_RING_SIZE_2048);
9991 break;
9992 case 4096:
9993 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9994 LPFC_RQ_RING_SIZE_4096);
9995 break;
9996 }
9997 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
9998 cq->queue_id);
9999 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
10000 hrq->page_count);
10001 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
10002 LPFC_HDR_BUF_SIZE);
10003 list_for_each_entry(dmabuf, &hrq->page_list, list) {
10004 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
10005 putPaddrLow(dmabuf->phys);
10006 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
10007 putPaddrHigh(dmabuf->phys);
10008 }
10009 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10010 /* The IOCTL status is embedded in the mailbox subheader. */
10011 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
10012 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10013 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10014 if (shdr_status || shdr_add_status || rc) {
10015 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10016 "2504 RQ_CREATE mailbox failed with "
10017 "status x%x add_status x%x, mbx status x%x\n",
10018 shdr_status, shdr_add_status, rc);
10019 status = -ENXIO;
10020 goto out;
10021 }
10022 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
10023 if (hrq->queue_id == 0xFFFF) {
10024 status = -ENXIO;
10025 goto out;
10026 }
10027 hrq->type = LPFC_HRQ;
10028 hrq->subtype = subtype;
10029 hrq->host_index = 0;
10030 hrq->hba_index = 0;
10031
10032 /* now create the data queue */
10033 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10034 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
10035 length, LPFC_SLI4_MBX_EMBED);
10036 switch (drq->entry_count) {
10037 default:
10038 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10039 "2536 Unsupported RQ count. (%d)\n",
10040 drq->entry_count);
10041 if (drq->entry_count < 512)
10042 return -EINVAL;
10043 /* otherwise default to smallest count (drop through) */
10044 case 512:
10045 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10046 LPFC_RQ_RING_SIZE_512);
10047 break;
10048 case 1024:
10049 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10050 LPFC_RQ_RING_SIZE_1024);
10051 break;
10052 case 2048:
10053 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10054 LPFC_RQ_RING_SIZE_2048);
10055 break;
10056 case 4096:
10057 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10058 LPFC_RQ_RING_SIZE_4096);
10059 break;
10060 }
10061 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
10062 cq->queue_id);
10063 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
10064 drq->page_count);
10065 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
10066 LPFC_DATA_BUF_SIZE);
10067 list_for_each_entry(dmabuf, &drq->page_list, list) {
10068 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
10069 putPaddrLow(dmabuf->phys);
10070 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
10071 putPaddrHigh(dmabuf->phys);
10072 }
10073 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10074 /* The IOCTL status is embedded in the mailbox subheader. */
10075 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
10076 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10077 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10078 if (shdr_status || shdr_add_status || rc) {
10079 status = -ENXIO;
10080 goto out;
10081 }
10082 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
10083 if (drq->queue_id == 0xFFFF) {
10084 status = -ENXIO;
10085 goto out;
10086 }
10087 drq->type = LPFC_DRQ;
10088 drq->subtype = subtype;
10089 drq->host_index = 0;
10090 drq->hba_index = 0;
10091
10092 /* link the header and data RQs onto the parent cq child list */
10093 list_add_tail(&hrq->list, &cq->child_list);
10094 list_add_tail(&drq->list, &cq->child_list);
10095
10096out:
James Smart8fa38512009-07-19 10:01:03 -040010097 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040010098 return status;
10099}
10100
10101/**
10102 * lpfc_eq_destroy - Destroy an event Queue on the HBA
10103 * @eq: The queue structure associated with the queue to destroy.
10104 *
10105 * This function destroys a queue, as detailed in @eq by sending an mailbox
10106 * command, specific to the type of queue, to the HBA.
10107 *
10108 * The @eq struct is used to get the queue ID of the queue to destroy.
10109 *
10110 * On success this function will return a zero. If the queue destroy mailbox
10111 * command fails this function will return ENXIO.
10112 **/
10113uint32_t
10114lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
10115{
10116 LPFC_MBOXQ_t *mbox;
10117 int rc, length, status = 0;
10118 uint32_t shdr_status, shdr_add_status;
10119 union lpfc_sli4_cfg_shdr *shdr;
10120
10121 if (!eq)
10122 return -ENODEV;
10123 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
10124 if (!mbox)
10125 return -ENOMEM;
10126 length = (sizeof(struct lpfc_mbx_eq_destroy) -
10127 sizeof(struct lpfc_sli4_cfg_mhdr));
10128 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10129 LPFC_MBOX_OPCODE_EQ_DESTROY,
10130 length, LPFC_SLI4_MBX_EMBED);
10131 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
10132 eq->queue_id);
10133 mbox->vport = eq->phba->pport;
10134 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10135
10136 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
10137 /* The IOCTL status is embedded in the mailbox subheader. */
10138 shdr = (union lpfc_sli4_cfg_shdr *)
10139 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
10140 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10141 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10142 if (shdr_status || shdr_add_status || rc) {
10143 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10144 "2505 EQ_DESTROY mailbox failed with "
10145 "status x%x add_status x%x, mbx status x%x\n",
10146 shdr_status, shdr_add_status, rc);
10147 status = -ENXIO;
10148 }
10149
10150 /* Remove eq from any list */
10151 list_del_init(&eq->list);
James Smart8fa38512009-07-19 10:01:03 -040010152 mempool_free(mbox, eq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040010153 return status;
10154}
10155
10156/**
10157 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
10158 * @cq: The queue structure associated with the queue to destroy.
10159 *
10160 * This function destroys a queue, as detailed in @cq by sending an mailbox
10161 * command, specific to the type of queue, to the HBA.
10162 *
10163 * The @cq struct is used to get the queue ID of the queue to destroy.
10164 *
10165 * On success this function will return a zero. If the queue destroy mailbox
10166 * command fails this function will return ENXIO.
10167 **/
10168uint32_t
10169lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
10170{
10171 LPFC_MBOXQ_t *mbox;
10172 int rc, length, status = 0;
10173 uint32_t shdr_status, shdr_add_status;
10174 union lpfc_sli4_cfg_shdr *shdr;
10175
10176 if (!cq)
10177 return -ENODEV;
10178 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
10179 if (!mbox)
10180 return -ENOMEM;
10181 length = (sizeof(struct lpfc_mbx_cq_destroy) -
10182 sizeof(struct lpfc_sli4_cfg_mhdr));
10183 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10184 LPFC_MBOX_OPCODE_CQ_DESTROY,
10185 length, LPFC_SLI4_MBX_EMBED);
10186 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
10187 cq->queue_id);
10188 mbox->vport = cq->phba->pport;
10189 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10190 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
10191 /* The IOCTL status is embedded in the mailbox subheader. */
10192 shdr = (union lpfc_sli4_cfg_shdr *)
10193 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
10194 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10195 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10196 if (shdr_status || shdr_add_status || rc) {
10197 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10198 "2506 CQ_DESTROY mailbox failed with "
10199 "status x%x add_status x%x, mbx status x%x\n",
10200 shdr_status, shdr_add_status, rc);
10201 status = -ENXIO;
10202 }
10203 /* Remove cq from any list */
10204 list_del_init(&cq->list);
James Smart8fa38512009-07-19 10:01:03 -040010205 mempool_free(mbox, cq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040010206 return status;
10207}
10208
10209/**
James Smart04c68492009-05-22 14:52:52 -040010210 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
10211 * @qm: The queue structure associated with the queue to destroy.
10212 *
10213 * This function destroys a queue, as detailed in @mq by sending an mailbox
10214 * command, specific to the type of queue, to the HBA.
10215 *
10216 * The @mq struct is used to get the queue ID of the queue to destroy.
10217 *
10218 * On success this function will return a zero. If the queue destroy mailbox
10219 * command fails this function will return ENXIO.
10220 **/
10221uint32_t
10222lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
10223{
10224 LPFC_MBOXQ_t *mbox;
10225 int rc, length, status = 0;
10226 uint32_t shdr_status, shdr_add_status;
10227 union lpfc_sli4_cfg_shdr *shdr;
10228
10229 if (!mq)
10230 return -ENODEV;
10231 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
10232 if (!mbox)
10233 return -ENOMEM;
10234 length = (sizeof(struct lpfc_mbx_mq_destroy) -
10235 sizeof(struct lpfc_sli4_cfg_mhdr));
10236 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10237 LPFC_MBOX_OPCODE_MQ_DESTROY,
10238 length, LPFC_SLI4_MBX_EMBED);
10239 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
10240 mq->queue_id);
10241 mbox->vport = mq->phba->pport;
10242 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10243 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
10244 /* The IOCTL status is embedded in the mailbox subheader. */
10245 shdr = (union lpfc_sli4_cfg_shdr *)
10246 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
10247 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10248 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10249 if (shdr_status || shdr_add_status || rc) {
10250 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10251 "2507 MQ_DESTROY mailbox failed with "
10252 "status x%x add_status x%x, mbx status x%x\n",
10253 shdr_status, shdr_add_status, rc);
10254 status = -ENXIO;
10255 }
10256 /* Remove mq from any list */
10257 list_del_init(&mq->list);
James Smart8fa38512009-07-19 10:01:03 -040010258 mempool_free(mbox, mq->phba->mbox_mem_pool);
James Smart04c68492009-05-22 14:52:52 -040010259 return status;
10260}
10261
10262/**
James Smart4f774512009-05-22 14:52:35 -040010263 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
10264 * @wq: The queue structure associated with the queue to destroy.
10265 *
10266 * This function destroys a queue, as detailed in @wq by sending an mailbox
10267 * command, specific to the type of queue, to the HBA.
10268 *
10269 * The @wq struct is used to get the queue ID of the queue to destroy.
10270 *
10271 * On success this function will return a zero. If the queue destroy mailbox
10272 * command fails this function will return ENXIO.
10273 **/
10274uint32_t
10275lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
10276{
10277 LPFC_MBOXQ_t *mbox;
10278 int rc, length, status = 0;
10279 uint32_t shdr_status, shdr_add_status;
10280 union lpfc_sli4_cfg_shdr *shdr;
10281
10282 if (!wq)
10283 return -ENODEV;
10284 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
10285 if (!mbox)
10286 return -ENOMEM;
10287 length = (sizeof(struct lpfc_mbx_wq_destroy) -
10288 sizeof(struct lpfc_sli4_cfg_mhdr));
10289 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10290 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
10291 length, LPFC_SLI4_MBX_EMBED);
10292 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
10293 wq->queue_id);
10294 mbox->vport = wq->phba->pport;
10295 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10296 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
10297 shdr = (union lpfc_sli4_cfg_shdr *)
10298 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
10299 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10300 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10301 if (shdr_status || shdr_add_status || rc) {
10302 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10303 "2508 WQ_DESTROY mailbox failed with "
10304 "status x%x add_status x%x, mbx status x%x\n",
10305 shdr_status, shdr_add_status, rc);
10306 status = -ENXIO;
10307 }
10308 /* Remove wq from any list */
10309 list_del_init(&wq->list);
James Smart8fa38512009-07-19 10:01:03 -040010310 mempool_free(mbox, wq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040010311 return status;
10312}
10313
10314/**
10315 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
10316 * @rq: The queue structure associated with the queue to destroy.
10317 *
10318 * This function destroys a queue, as detailed in @rq by sending an mailbox
10319 * command, specific to the type of queue, to the HBA.
10320 *
10321 * The @rq struct is used to get the queue ID of the queue to destroy.
10322 *
10323 * On success this function will return a zero. If the queue destroy mailbox
10324 * command fails this function will return ENXIO.
10325 **/
10326uint32_t
10327lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
10328 struct lpfc_queue *drq)
10329{
10330 LPFC_MBOXQ_t *mbox;
10331 int rc, length, status = 0;
10332 uint32_t shdr_status, shdr_add_status;
10333 union lpfc_sli4_cfg_shdr *shdr;
10334
10335 if (!hrq || !drq)
10336 return -ENODEV;
10337 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
10338 if (!mbox)
10339 return -ENOMEM;
10340 length = (sizeof(struct lpfc_mbx_rq_destroy) -
10341 sizeof(struct mbox_header));
10342 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10343 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
10344 length, LPFC_SLI4_MBX_EMBED);
10345 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
10346 hrq->queue_id);
10347 mbox->vport = hrq->phba->pport;
10348 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10349 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
10350 /* The IOCTL status is embedded in the mailbox subheader. */
10351 shdr = (union lpfc_sli4_cfg_shdr *)
10352 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
10353 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10354 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10355 if (shdr_status || shdr_add_status || rc) {
10356 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10357 "2509 RQ_DESTROY mailbox failed with "
10358 "status x%x add_status x%x, mbx status x%x\n",
10359 shdr_status, shdr_add_status, rc);
10360 if (rc != MBX_TIMEOUT)
10361 mempool_free(mbox, hrq->phba->mbox_mem_pool);
10362 return -ENXIO;
10363 }
10364 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
10365 drq->queue_id);
10366 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
10367 shdr = (union lpfc_sli4_cfg_shdr *)
10368 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
10369 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10370 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10371 if (shdr_status || shdr_add_status || rc) {
10372 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10373 "2510 RQ_DESTROY mailbox failed with "
10374 "status x%x add_status x%x, mbx status x%x\n",
10375 shdr_status, shdr_add_status, rc);
10376 status = -ENXIO;
10377 }
10378 list_del_init(&hrq->list);
10379 list_del_init(&drq->list);
James Smart8fa38512009-07-19 10:01:03 -040010380 mempool_free(mbox, hrq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040010381 return status;
10382}
10383
10384/**
10385 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
10386 * @phba: The virtual port for which this call being executed.
10387 * @pdma_phys_addr0: Physical address of the 1st SGL page.
10388 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
10389 * @xritag: the xritag that ties this io to the SGL pages.
10390 *
10391 * This routine will post the sgl pages for the IO that has the xritag
10392 * that is in the iocbq structure. The xritag is assigned during iocbq
10393 * creation and persists for as long as the driver is loaded.
10394 * if the caller has fewer than 256 scatter gather segments to map then
10395 * pdma_phys_addr1 should be 0.
10396 * If the caller needs to map more than 256 scatter gather segment then
10397 * pdma_phys_addr1 should be a valid physical address.
10398 * physical address for SGLs must be 64 byte aligned.
10399 * If you are going to map 2 SGL's then the first one must have 256 entries
10400 * the second sgl can have between 1 and 256 entries.
10401 *
10402 * Return codes:
10403 * 0 - Success
10404 * -ENXIO, -ENOMEM - Failure
10405 **/
10406int
10407lpfc_sli4_post_sgl(struct lpfc_hba *phba,
10408 dma_addr_t pdma_phys_addr0,
10409 dma_addr_t pdma_phys_addr1,
10410 uint16_t xritag)
10411{
10412 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
10413 LPFC_MBOXQ_t *mbox;
10414 int rc;
10415 uint32_t shdr_status, shdr_add_status;
10416 union lpfc_sli4_cfg_shdr *shdr;
10417
10418 if (xritag == NO_XRI) {
10419 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10420 "0364 Invalid param:\n");
10421 return -EINVAL;
10422 }
10423
10424 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10425 if (!mbox)
10426 return -ENOMEM;
10427
10428 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10429 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
10430 sizeof(struct lpfc_mbx_post_sgl_pages) -
10431 sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
10432
10433 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
10434 &mbox->u.mqe.un.post_sgl_pages;
10435 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
10436 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
10437
10438 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
10439 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
10440 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
10441 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
10442
10443 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
10444 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
10445 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
10446 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
10447 if (!phba->sli4_hba.intr_enable)
10448 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10449 else
10450 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
10451 /* The IOCTL status is embedded in the mailbox subheader. */
10452 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
10453 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10454 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10455 if (rc != MBX_TIMEOUT)
10456 mempool_free(mbox, phba->mbox_mem_pool);
10457 if (shdr_status || shdr_add_status || rc) {
10458 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10459 "2511 POST_SGL mailbox failed with "
10460 "status x%x add_status x%x, mbx status x%x\n",
10461 shdr_status, shdr_add_status, rc);
10462 rc = -ENXIO;
10463 }
10464 return 0;
10465}
10466/**
10467 * lpfc_sli4_remove_all_sgl_pages - Post scatter gather list for an XRI to HBA
10468 * @phba: The virtual port for which this call being executed.
10469 *
10470 * This routine will remove all of the sgl pages registered with the hba.
10471 *
10472 * Return codes:
10473 * 0 - Success
10474 * -ENXIO, -ENOMEM - Failure
10475 **/
10476int
10477lpfc_sli4_remove_all_sgl_pages(struct lpfc_hba *phba)
10478{
10479 LPFC_MBOXQ_t *mbox;
10480 int rc;
10481 uint32_t shdr_status, shdr_add_status;
10482 union lpfc_sli4_cfg_shdr *shdr;
10483
10484 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10485 if (!mbox)
10486 return -ENOMEM;
10487
10488 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10489 LPFC_MBOX_OPCODE_FCOE_REMOVE_SGL_PAGES, 0,
10490 LPFC_SLI4_MBX_EMBED);
10491 if (!phba->sli4_hba.intr_enable)
10492 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10493 else
10494 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
10495 /* The IOCTL status is embedded in the mailbox subheader. */
10496 shdr = (union lpfc_sli4_cfg_shdr *)
10497 &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
10498 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10499 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10500 if (rc != MBX_TIMEOUT)
10501 mempool_free(mbox, phba->mbox_mem_pool);
10502 if (shdr_status || shdr_add_status || rc) {
10503 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10504 "2512 REMOVE_ALL_SGL_PAGES mailbox failed with "
10505 "status x%x add_status x%x, mbx status x%x\n",
10506 shdr_status, shdr_add_status, rc);
10507 rc = -ENXIO;
10508 }
10509 return rc;
10510}
10511
10512/**
10513 * lpfc_sli4_next_xritag - Get an xritag for the io
10514 * @phba: Pointer to HBA context object.
10515 *
10516 * This function gets an xritag for the iocb. If there is no unused xritag
10517 * it will return 0xffff.
10518 * The function returns the allocated xritag if successful, else returns zero.
10519 * Zero is not a valid xritag.
10520 * The caller is not required to hold any lock.
10521 **/
10522uint16_t
10523lpfc_sli4_next_xritag(struct lpfc_hba *phba)
10524{
10525 uint16_t xritag;
10526
10527 spin_lock_irq(&phba->hbalock);
10528 xritag = phba->sli4_hba.next_xri;
10529 if ((xritag != (uint16_t) -1) && xritag <
10530 (phba->sli4_hba.max_cfg_param.max_xri
10531 + phba->sli4_hba.max_cfg_param.xri_base)) {
10532 phba->sli4_hba.next_xri++;
10533 phba->sli4_hba.max_cfg_param.xri_used++;
10534 spin_unlock_irq(&phba->hbalock);
10535 return xritag;
10536 }
10537 spin_unlock_irq(&phba->hbalock);
James Smart6a9c52c2009-10-02 15:16:51 -040010538 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smart4f774512009-05-22 14:52:35 -040010539 "2004 Failed to allocate XRI.last XRITAG is %d"
10540 " Max XRI is %d, Used XRI is %d\n",
10541 phba->sli4_hba.next_xri,
10542 phba->sli4_hba.max_cfg_param.max_xri,
10543 phba->sli4_hba.max_cfg_param.xri_used);
10544 return -1;
10545}
10546
10547/**
10548 * lpfc_sli4_post_sgl_list - post a block of sgl list to the firmware.
10549 * @phba: pointer to lpfc hba data structure.
10550 *
10551 * This routine is invoked to post a block of driver's sgl pages to the
10552 * HBA using non-embedded mailbox command. No Lock is held. This routine
10553 * is only called when the driver is loading and after all IO has been
10554 * stopped.
10555 **/
10556int
10557lpfc_sli4_post_sgl_list(struct lpfc_hba *phba)
10558{
10559 struct lpfc_sglq *sglq_entry;
10560 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
10561 struct sgl_page_pairs *sgl_pg_pairs;
10562 void *viraddr;
10563 LPFC_MBOXQ_t *mbox;
10564 uint32_t reqlen, alloclen, pg_pairs;
10565 uint32_t mbox_tmo;
10566 uint16_t xritag_start = 0;
10567 int els_xri_cnt, rc = 0;
10568 uint32_t shdr_status, shdr_add_status;
10569 union lpfc_sli4_cfg_shdr *shdr;
10570
10571 /* The number of sgls to be posted */
10572 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
10573
10574 reqlen = els_xri_cnt * sizeof(struct sgl_page_pairs) +
10575 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
10576 if (reqlen > PAGE_SIZE) {
10577 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10578 "2559 Block sgl registration required DMA "
10579 "size (%d) great than a page\n", reqlen);
10580 return -ENOMEM;
10581 }
10582 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10583 if (!mbox) {
10584 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10585 "2560 Failed to allocate mbox cmd memory\n");
10586 return -ENOMEM;
10587 }
10588
10589 /* Allocate DMA memory and set up the non-embedded mailbox command */
10590 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10591 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
10592 LPFC_SLI4_MBX_NEMBED);
10593
10594 if (alloclen < reqlen) {
10595 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10596 "0285 Allocated DMA memory size (%d) is "
10597 "less than the requested DMA memory "
10598 "size (%d)\n", alloclen, reqlen);
10599 lpfc_sli4_mbox_cmd_free(phba, mbox);
10600 return -ENOMEM;
10601 }
James Smart4f774512009-05-22 14:52:35 -040010602 /* Get the first SGE entry from the non-embedded DMA memory */
James Smart4f774512009-05-22 14:52:35 -040010603 viraddr = mbox->sge_array->addr[0];
10604
10605 /* Set up the SGL pages in the non-embedded DMA pages */
10606 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
10607 sgl_pg_pairs = &sgl->sgl_pg_pairs;
10608
10609 for (pg_pairs = 0; pg_pairs < els_xri_cnt; pg_pairs++) {
10610 sglq_entry = phba->sli4_hba.lpfc_els_sgl_array[pg_pairs];
10611 /* Set up the sge entry */
10612 sgl_pg_pairs->sgl_pg0_addr_lo =
10613 cpu_to_le32(putPaddrLow(sglq_entry->phys));
10614 sgl_pg_pairs->sgl_pg0_addr_hi =
10615 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
10616 sgl_pg_pairs->sgl_pg1_addr_lo =
10617 cpu_to_le32(putPaddrLow(0));
10618 sgl_pg_pairs->sgl_pg1_addr_hi =
10619 cpu_to_le32(putPaddrHigh(0));
10620 /* Keep the first xritag on the list */
10621 if (pg_pairs == 0)
10622 xritag_start = sglq_entry->sli4_xritag;
10623 sgl_pg_pairs++;
10624 }
10625 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
James Smart6a9c52c2009-10-02 15:16:51 -040010626 bf_set(lpfc_post_sgl_pages_xricnt, sgl, els_xri_cnt);
James Smart4f774512009-05-22 14:52:35 -040010627 /* Perform endian conversion if necessary */
10628 sgl->word0 = cpu_to_le32(sgl->word0);
10629
10630 if (!phba->sli4_hba.intr_enable)
10631 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10632 else {
10633 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
10634 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
10635 }
10636 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
10637 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10638 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10639 if (rc != MBX_TIMEOUT)
10640 lpfc_sli4_mbox_cmd_free(phba, mbox);
10641 if (shdr_status || shdr_add_status || rc) {
10642 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10643 "2513 POST_SGL_BLOCK mailbox command failed "
10644 "status x%x add_status x%x mbx status x%x\n",
10645 shdr_status, shdr_add_status, rc);
10646 rc = -ENXIO;
10647 }
10648 return rc;
10649}
10650
10651/**
10652 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
10653 * @phba: pointer to lpfc hba data structure.
10654 * @sblist: pointer to scsi buffer list.
10655 * @count: number of scsi buffers on the list.
10656 *
10657 * This routine is invoked to post a block of @count scsi sgl pages from a
10658 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
10659 * No Lock is held.
10660 *
10661 **/
10662int
10663lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba, struct list_head *sblist,
10664 int cnt)
10665{
10666 struct lpfc_scsi_buf *psb;
10667 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
10668 struct sgl_page_pairs *sgl_pg_pairs;
10669 void *viraddr;
10670 LPFC_MBOXQ_t *mbox;
10671 uint32_t reqlen, alloclen, pg_pairs;
10672 uint32_t mbox_tmo;
10673 uint16_t xritag_start = 0;
10674 int rc = 0;
10675 uint32_t shdr_status, shdr_add_status;
10676 dma_addr_t pdma_phys_bpl1;
10677 union lpfc_sli4_cfg_shdr *shdr;
10678
10679 /* Calculate the requested length of the dma memory */
10680 reqlen = cnt * sizeof(struct sgl_page_pairs) +
10681 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
10682 if (reqlen > PAGE_SIZE) {
10683 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10684 "0217 Block sgl registration required DMA "
10685 "size (%d) great than a page\n", reqlen);
10686 return -ENOMEM;
10687 }
10688 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10689 if (!mbox) {
10690 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10691 "0283 Failed to allocate mbox cmd memory\n");
10692 return -ENOMEM;
10693 }
10694
10695 /* Allocate DMA memory and set up the non-embedded mailbox command */
10696 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10697 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
10698 LPFC_SLI4_MBX_NEMBED);
10699
10700 if (alloclen < reqlen) {
10701 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10702 "2561 Allocated DMA memory size (%d) is "
10703 "less than the requested DMA memory "
10704 "size (%d)\n", alloclen, reqlen);
10705 lpfc_sli4_mbox_cmd_free(phba, mbox);
10706 return -ENOMEM;
10707 }
James Smart4f774512009-05-22 14:52:35 -040010708 /* Get the first SGE entry from the non-embedded DMA memory */
James Smart4f774512009-05-22 14:52:35 -040010709 viraddr = mbox->sge_array->addr[0];
10710
10711 /* Set up the SGL pages in the non-embedded DMA pages */
10712 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
10713 sgl_pg_pairs = &sgl->sgl_pg_pairs;
10714
10715 pg_pairs = 0;
10716 list_for_each_entry(psb, sblist, list) {
10717 /* Set up the sge entry */
10718 sgl_pg_pairs->sgl_pg0_addr_lo =
10719 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
10720 sgl_pg_pairs->sgl_pg0_addr_hi =
10721 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
10722 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
10723 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
10724 else
10725 pdma_phys_bpl1 = 0;
10726 sgl_pg_pairs->sgl_pg1_addr_lo =
10727 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
10728 sgl_pg_pairs->sgl_pg1_addr_hi =
10729 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
10730 /* Keep the first xritag on the list */
10731 if (pg_pairs == 0)
10732 xritag_start = psb->cur_iocbq.sli4_xritag;
10733 sgl_pg_pairs++;
10734 pg_pairs++;
10735 }
10736 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
10737 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
10738 /* Perform endian conversion if necessary */
10739 sgl->word0 = cpu_to_le32(sgl->word0);
10740
10741 if (!phba->sli4_hba.intr_enable)
10742 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10743 else {
10744 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
10745 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
10746 }
10747 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
10748 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10749 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10750 if (rc != MBX_TIMEOUT)
10751 lpfc_sli4_mbox_cmd_free(phba, mbox);
10752 if (shdr_status || shdr_add_status || rc) {
10753 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10754 "2564 POST_SGL_BLOCK mailbox command failed "
10755 "status x%x add_status x%x mbx status x%x\n",
10756 shdr_status, shdr_add_status, rc);
10757 rc = -ENXIO;
10758 }
10759 return rc;
10760}
10761
10762/**
10763 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
10764 * @phba: pointer to lpfc_hba struct that the frame was received on
10765 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
10766 *
10767 * This function checks the fields in the @fc_hdr to see if the FC frame is a
10768 * valid type of frame that the LPFC driver will handle. This function will
10769 * return a zero if the frame is a valid frame or a non zero value when the
10770 * frame does not pass the check.
10771 **/
10772static int
10773lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
10774{
10775 char *rctl_names[] = FC_RCTL_NAMES_INIT;
10776 char *type_names[] = FC_TYPE_NAMES_INIT;
10777 struct fc_vft_header *fc_vft_hdr;
10778
10779 switch (fc_hdr->fh_r_ctl) {
10780 case FC_RCTL_DD_UNCAT: /* uncategorized information */
10781 case FC_RCTL_DD_SOL_DATA: /* solicited data */
10782 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
10783 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
10784 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
10785 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
10786 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
10787 case FC_RCTL_DD_CMD_STATUS: /* command status */
10788 case FC_RCTL_ELS_REQ: /* extended link services request */
10789 case FC_RCTL_ELS_REP: /* extended link services reply */
10790 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
10791 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
10792 case FC_RCTL_BA_NOP: /* basic link service NOP */
10793 case FC_RCTL_BA_ABTS: /* basic link service abort */
10794 case FC_RCTL_BA_RMC: /* remove connection */
10795 case FC_RCTL_BA_ACC: /* basic accept */
10796 case FC_RCTL_BA_RJT: /* basic reject */
10797 case FC_RCTL_BA_PRMT:
10798 case FC_RCTL_ACK_1: /* acknowledge_1 */
10799 case FC_RCTL_ACK_0: /* acknowledge_0 */
10800 case FC_RCTL_P_RJT: /* port reject */
10801 case FC_RCTL_F_RJT: /* fabric reject */
10802 case FC_RCTL_P_BSY: /* port busy */
10803 case FC_RCTL_F_BSY: /* fabric busy to data frame */
10804 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
10805 case FC_RCTL_LCR: /* link credit reset */
10806 case FC_RCTL_END: /* end */
10807 break;
10808 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
10809 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
10810 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
10811 return lpfc_fc_frame_check(phba, fc_hdr);
10812 default:
10813 goto drop;
10814 }
10815 switch (fc_hdr->fh_type) {
10816 case FC_TYPE_BLS:
10817 case FC_TYPE_ELS:
10818 case FC_TYPE_FCP:
10819 case FC_TYPE_CT:
10820 break;
10821 case FC_TYPE_IP:
10822 case FC_TYPE_ILS:
10823 default:
10824 goto drop;
10825 }
10826 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
10827 "2538 Received frame rctl:%s type:%s\n",
10828 rctl_names[fc_hdr->fh_r_ctl],
10829 type_names[fc_hdr->fh_type]);
10830 return 0;
10831drop:
10832 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
10833 "2539 Dropped frame rctl:%s type:%s\n",
10834 rctl_names[fc_hdr->fh_r_ctl],
10835 type_names[fc_hdr->fh_type]);
10836 return 1;
10837}
10838
10839/**
10840 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
10841 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
10842 *
10843 * This function processes the FC header to retrieve the VFI from the VF
10844 * header, if one exists. This function will return the VFI if one exists
10845 * or 0 if no VSAN Header exists.
10846 **/
10847static uint32_t
10848lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
10849{
10850 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
10851
10852 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
10853 return 0;
10854 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
10855}
10856
10857/**
10858 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
10859 * @phba: Pointer to the HBA structure to search for the vport on
10860 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
10861 * @fcfi: The FC Fabric ID that the frame came from
10862 *
10863 * This function searches the @phba for a vport that matches the content of the
10864 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
10865 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
10866 * returns the matching vport pointer or NULL if unable to match frame to a
10867 * vport.
10868 **/
10869static struct lpfc_vport *
10870lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
10871 uint16_t fcfi)
10872{
10873 struct lpfc_vport **vports;
10874 struct lpfc_vport *vport = NULL;
10875 int i;
10876 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
10877 fc_hdr->fh_d_id[1] << 8 |
10878 fc_hdr->fh_d_id[2]);
10879
10880 vports = lpfc_create_vport_work_array(phba);
10881 if (vports != NULL)
10882 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
10883 if (phba->fcf.fcfi == fcfi &&
10884 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
10885 vports[i]->fc_myDID == did) {
10886 vport = vports[i];
10887 break;
10888 }
10889 }
10890 lpfc_destroy_vport_work_array(phba, vports);
10891 return vport;
10892}
10893
10894/**
James Smart45ed1192009-10-02 15:17:02 -040010895 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
10896 * @vport: The vport to work on.
10897 *
10898 * This function updates the receive sequence time stamp for this vport. The
10899 * receive sequence time stamp indicates the time that the last frame of the
10900 * the sequence that has been idle for the longest amount of time was received.
10901 * the driver uses this time stamp to indicate if any received sequences have
10902 * timed out.
10903 **/
10904void
10905lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
10906{
10907 struct lpfc_dmabuf *h_buf;
10908 struct hbq_dmabuf *dmabuf = NULL;
10909
10910 /* get the oldest sequence on the rcv list */
10911 h_buf = list_get_first(&vport->rcv_buffer_list,
10912 struct lpfc_dmabuf, list);
10913 if (!h_buf)
10914 return;
10915 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
10916 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
10917}
10918
10919/**
10920 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
10921 * @vport: The vport that the received sequences were sent to.
10922 *
10923 * This function cleans up all outstanding received sequences. This is called
10924 * by the driver when a link event or user action invalidates all the received
10925 * sequences.
10926 **/
10927void
10928lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
10929{
10930 struct lpfc_dmabuf *h_buf, *hnext;
10931 struct lpfc_dmabuf *d_buf, *dnext;
10932 struct hbq_dmabuf *dmabuf = NULL;
10933
10934 /* start with the oldest sequence on the rcv list */
10935 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
10936 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
10937 list_del_init(&dmabuf->hbuf.list);
10938 list_for_each_entry_safe(d_buf, dnext,
10939 &dmabuf->dbuf.list, list) {
10940 list_del_init(&d_buf->list);
10941 lpfc_in_buf_free(vport->phba, d_buf);
10942 }
10943 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
10944 }
10945}
10946
10947/**
10948 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
10949 * @vport: The vport that the received sequences were sent to.
10950 *
10951 * This function determines whether any received sequences have timed out by
10952 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
10953 * indicates that there is at least one timed out sequence this routine will
10954 * go through the received sequences one at a time from most inactive to most
10955 * active to determine which ones need to be cleaned up. Once it has determined
10956 * that a sequence needs to be cleaned up it will simply free up the resources
10957 * without sending an abort.
10958 **/
10959void
10960lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
10961{
10962 struct lpfc_dmabuf *h_buf, *hnext;
10963 struct lpfc_dmabuf *d_buf, *dnext;
10964 struct hbq_dmabuf *dmabuf = NULL;
10965 unsigned long timeout;
10966 int abort_count = 0;
10967
10968 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
10969 vport->rcv_buffer_time_stamp);
10970 if (list_empty(&vport->rcv_buffer_list) ||
10971 time_before(jiffies, timeout))
10972 return;
10973 /* start with the oldest sequence on the rcv list */
10974 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
10975 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
10976 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
10977 dmabuf->time_stamp);
10978 if (time_before(jiffies, timeout))
10979 break;
10980 abort_count++;
10981 list_del_init(&dmabuf->hbuf.list);
10982 list_for_each_entry_safe(d_buf, dnext,
10983 &dmabuf->dbuf.list, list) {
10984 list_del_init(&d_buf->list);
10985 lpfc_in_buf_free(vport->phba, d_buf);
10986 }
10987 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
10988 }
10989 if (abort_count)
10990 lpfc_update_rcv_time_stamp(vport);
10991}
10992
10993/**
James Smart4f774512009-05-22 14:52:35 -040010994 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
10995 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
10996 *
10997 * This function searches through the existing incomplete sequences that have
10998 * been sent to this @vport. If the frame matches one of the incomplete
10999 * sequences then the dbuf in the @dmabuf is added to the list of frames that
11000 * make up that sequence. If no sequence is found that matches this frame then
11001 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
11002 * This function returns a pointer to the first dmabuf in the sequence list that
11003 * the frame was linked to.
11004 **/
11005static struct hbq_dmabuf *
11006lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
11007{
11008 struct fc_frame_header *new_hdr;
11009 struct fc_frame_header *temp_hdr;
11010 struct lpfc_dmabuf *d_buf;
11011 struct lpfc_dmabuf *h_buf;
11012 struct hbq_dmabuf *seq_dmabuf = NULL;
11013 struct hbq_dmabuf *temp_dmabuf = NULL;
11014
James Smart4d9ab992009-10-02 15:16:39 -040011015 INIT_LIST_HEAD(&dmabuf->dbuf.list);
James Smart45ed1192009-10-02 15:17:02 -040011016 dmabuf->time_stamp = jiffies;
James Smart4f774512009-05-22 14:52:35 -040011017 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11018 /* Use the hdr_buf to find the sequence that this frame belongs to */
11019 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
11020 temp_hdr = (struct fc_frame_header *)h_buf->virt;
11021 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
11022 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
11023 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
11024 continue;
11025 /* found a pending sequence that matches this frame */
11026 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11027 break;
11028 }
11029 if (!seq_dmabuf) {
11030 /*
11031 * This indicates first frame received for this sequence.
11032 * Queue the buffer on the vport's rcv_buffer_list.
11033 */
11034 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
James Smart45ed1192009-10-02 15:17:02 -040011035 lpfc_update_rcv_time_stamp(vport);
James Smart4f774512009-05-22 14:52:35 -040011036 return dmabuf;
11037 }
11038 temp_hdr = seq_dmabuf->hbuf.virt;
James Smarteeead812009-12-21 17:01:23 -050011039 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
11040 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
James Smart4d9ab992009-10-02 15:16:39 -040011041 list_del_init(&seq_dmabuf->hbuf.list);
11042 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
11043 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
James Smart45ed1192009-10-02 15:17:02 -040011044 lpfc_update_rcv_time_stamp(vport);
James Smart4f774512009-05-22 14:52:35 -040011045 return dmabuf;
11046 }
James Smart45ed1192009-10-02 15:17:02 -040011047 /* move this sequence to the tail to indicate a young sequence */
11048 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
11049 seq_dmabuf->time_stamp = jiffies;
11050 lpfc_update_rcv_time_stamp(vport);
James Smarteeead812009-12-21 17:01:23 -050011051 if (list_empty(&seq_dmabuf->dbuf.list)) {
11052 temp_hdr = dmabuf->hbuf.virt;
11053 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
11054 return seq_dmabuf;
11055 }
James Smart4f774512009-05-22 14:52:35 -040011056 /* find the correct place in the sequence to insert this frame */
11057 list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
11058 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
11059 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
11060 /*
11061 * If the frame's sequence count is greater than the frame on
11062 * the list then insert the frame right after this frame
11063 */
James Smarteeead812009-12-21 17:01:23 -050011064 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
11065 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
James Smart4f774512009-05-22 14:52:35 -040011066 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
11067 return seq_dmabuf;
11068 }
11069 }
11070 return NULL;
11071}
11072
11073/**
James Smart6669f9b2009-10-02 15:16:45 -040011074 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
11075 * @vport: pointer to a vitural port
11076 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11077 *
11078 * This function tries to abort from the partially assembed sequence, described
11079 * by the information from basic abbort @dmabuf. It checks to see whether such
11080 * partially assembled sequence held by the driver. If so, it shall free up all
11081 * the frames from the partially assembled sequence.
11082 *
11083 * Return
11084 * true -- if there is matching partially assembled sequence present and all
11085 * the frames freed with the sequence;
11086 * false -- if there is no matching partially assembled sequence present so
11087 * nothing got aborted in the lower layer driver
11088 **/
11089static bool
11090lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
11091 struct hbq_dmabuf *dmabuf)
11092{
11093 struct fc_frame_header *new_hdr;
11094 struct fc_frame_header *temp_hdr;
11095 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
11096 struct hbq_dmabuf *seq_dmabuf = NULL;
11097
11098 /* Use the hdr_buf to find the sequence that matches this frame */
11099 INIT_LIST_HEAD(&dmabuf->dbuf.list);
11100 INIT_LIST_HEAD(&dmabuf->hbuf.list);
11101 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11102 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
11103 temp_hdr = (struct fc_frame_header *)h_buf->virt;
11104 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
11105 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
11106 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
11107 continue;
11108 /* found a pending sequence that matches this frame */
11109 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11110 break;
11111 }
11112
11113 /* Free up all the frames from the partially assembled sequence */
11114 if (seq_dmabuf) {
11115 list_for_each_entry_safe(d_buf, n_buf,
11116 &seq_dmabuf->dbuf.list, list) {
11117 list_del_init(&d_buf->list);
11118 lpfc_in_buf_free(vport->phba, d_buf);
11119 }
11120 return true;
11121 }
11122 return false;
11123}
11124
11125/**
11126 * lpfc_sli4_seq_abort_acc_cmpl - Accept seq abort iocb complete handler
11127 * @phba: Pointer to HBA context object.
11128 * @cmd_iocbq: pointer to the command iocbq structure.
11129 * @rsp_iocbq: pointer to the response iocbq structure.
11130 *
11131 * This function handles the sequence abort accept iocb command complete
11132 * event. It properly releases the memory allocated to the sequence abort
11133 * accept iocb.
11134 **/
11135static void
11136lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba *phba,
11137 struct lpfc_iocbq *cmd_iocbq,
11138 struct lpfc_iocbq *rsp_iocbq)
11139{
11140 if (cmd_iocbq)
11141 lpfc_sli_release_iocbq(phba, cmd_iocbq);
11142}
11143
11144/**
11145 * lpfc_sli4_seq_abort_acc - Accept sequence abort
11146 * @phba: Pointer to HBA context object.
11147 * @fc_hdr: pointer to a FC frame header.
11148 *
11149 * This function sends a basic accept to a previous unsol sequence abort
11150 * event after aborting the sequence handling.
11151 **/
11152static void
11153lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba,
11154 struct fc_frame_header *fc_hdr)
11155{
11156 struct lpfc_iocbq *ctiocb = NULL;
11157 struct lpfc_nodelist *ndlp;
James Smart5ffc2662009-11-18 15:39:44 -050011158 uint16_t oxid, rxid;
11159 uint32_t sid, fctl;
James Smart6669f9b2009-10-02 15:16:45 -040011160 IOCB_t *icmd;
11161
11162 if (!lpfc_is_link_up(phba))
11163 return;
11164
11165 sid = sli4_sid_from_fc_hdr(fc_hdr);
11166 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
James Smart5ffc2662009-11-18 15:39:44 -050011167 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
James Smart6669f9b2009-10-02 15:16:45 -040011168
11169 ndlp = lpfc_findnode_did(phba->pport, sid);
11170 if (!ndlp) {
11171 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
11172 "1268 Find ndlp returned NULL for oxid:x%x "
11173 "SID:x%x\n", oxid, sid);
11174 return;
11175 }
11176
11177 /* Allocate buffer for acc iocb */
11178 ctiocb = lpfc_sli_get_iocbq(phba);
11179 if (!ctiocb)
11180 return;
11181
James Smart5ffc2662009-11-18 15:39:44 -050011182 /* Extract the F_CTL field from FC_HDR */
11183 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
11184
James Smart6669f9b2009-10-02 15:16:45 -040011185 icmd = &ctiocb->iocb;
James Smart6669f9b2009-10-02 15:16:45 -040011186 icmd->un.xseq64.bdl.bdeSize = 0;
James Smart5ffc2662009-11-18 15:39:44 -050011187 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
James Smart6669f9b2009-10-02 15:16:45 -040011188 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
11189 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
11190 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
11191
11192 /* Fill in the rest of iocb fields */
11193 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
11194 icmd->ulpBdeCount = 0;
11195 icmd->ulpLe = 1;
11196 icmd->ulpClass = CLASS3;
11197 icmd->ulpContext = ndlp->nlp_rpi;
James Smart6669f9b2009-10-02 15:16:45 -040011198
James Smart6669f9b2009-10-02 15:16:45 -040011199 ctiocb->iocb_cmpl = NULL;
11200 ctiocb->vport = phba->pport;
11201 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_acc_cmpl;
11202
James Smart5ffc2662009-11-18 15:39:44 -050011203 if (fctl & FC_FC_EX_CTX) {
11204 /* ABTS sent by responder to CT exchange, construction
11205 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
11206 * field and RX_ID from ABTS for RX_ID field.
11207 */
11208 bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_RSP);
11209 bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, rxid);
11210 ctiocb->sli4_xritag = oxid;
11211 } else {
11212 /* ABTS sent by initiator to CT exchange, construction
11213 * of BA_ACC will need to allocate a new XRI as for the
11214 * XRI_TAG and RX_ID fields.
11215 */
11216 bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_INT);
11217 bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, NO_XRI);
11218 ctiocb->sli4_xritag = NO_XRI;
11219 }
11220 bf_set(lpfc_abts_oxid, &icmd->un.bls_acc, oxid);
11221
James Smart6669f9b2009-10-02 15:16:45 -040011222 /* Xmit CT abts accept on exchange <xid> */
11223 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
11224 "1200 Xmit CT ABTS ACC on exchange x%x Data: x%x\n",
11225 CMD_XMIT_BLS_RSP64_CX, phba->link_state);
11226 lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
11227}
11228
11229/**
11230 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
11231 * @vport: Pointer to the vport on which this sequence was received
11232 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11233 *
11234 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
11235 * receive sequence is only partially assembed by the driver, it shall abort
11236 * the partially assembled frames for the sequence. Otherwise, if the
11237 * unsolicited receive sequence has been completely assembled and passed to
11238 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
11239 * unsolicited sequence has been aborted. After that, it will issue a basic
11240 * accept to accept the abort.
11241 **/
11242void
11243lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
11244 struct hbq_dmabuf *dmabuf)
11245{
11246 struct lpfc_hba *phba = vport->phba;
11247 struct fc_frame_header fc_hdr;
James Smart5ffc2662009-11-18 15:39:44 -050011248 uint32_t fctl;
James Smart6669f9b2009-10-02 15:16:45 -040011249 bool abts_par;
11250
James Smart6669f9b2009-10-02 15:16:45 -040011251 /* Make a copy of fc_hdr before the dmabuf being released */
11252 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
James Smart5ffc2662009-11-18 15:39:44 -050011253 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
James Smart6669f9b2009-10-02 15:16:45 -040011254
James Smart5ffc2662009-11-18 15:39:44 -050011255 if (fctl & FC_FC_EX_CTX) {
11256 /*
11257 * ABTS sent by responder to exchange, just free the buffer
11258 */
James Smart6669f9b2009-10-02 15:16:45 -040011259 lpfc_in_buf_free(phba, &dmabuf->dbuf);
James Smart5ffc2662009-11-18 15:39:44 -050011260 } else {
11261 /*
11262 * ABTS sent by initiator to exchange, need to do cleanup
11263 */
11264 /* Try to abort partially assembled seq */
11265 abts_par = lpfc_sli4_abort_partial_seq(vport, dmabuf);
11266
11267 /* Send abort to ULP if partially seq abort failed */
11268 if (abts_par == false)
11269 lpfc_sli4_send_seq_to_ulp(vport, dmabuf);
11270 else
11271 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11272 }
James Smart6669f9b2009-10-02 15:16:45 -040011273 /* Send basic accept (BA_ACC) to the abort requester */
11274 lpfc_sli4_seq_abort_acc(phba, &fc_hdr);
11275}
11276
11277/**
James Smart4f774512009-05-22 14:52:35 -040011278 * lpfc_seq_complete - Indicates if a sequence is complete
11279 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11280 *
11281 * This function checks the sequence, starting with the frame described by
11282 * @dmabuf, to see if all the frames associated with this sequence are present.
11283 * the frames associated with this sequence are linked to the @dmabuf using the
11284 * dbuf list. This function looks for two major things. 1) That the first frame
11285 * has a sequence count of zero. 2) There is a frame with last frame of sequence
11286 * set. 3) That there are no holes in the sequence count. The function will
11287 * return 1 when the sequence is complete, otherwise it will return 0.
11288 **/
11289static int
11290lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
11291{
11292 struct fc_frame_header *hdr;
11293 struct lpfc_dmabuf *d_buf;
11294 struct hbq_dmabuf *seq_dmabuf;
11295 uint32_t fctl;
11296 int seq_count = 0;
11297
11298 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11299 /* make sure first fame of sequence has a sequence count of zero */
11300 if (hdr->fh_seq_cnt != seq_count)
11301 return 0;
11302 fctl = (hdr->fh_f_ctl[0] << 16 |
11303 hdr->fh_f_ctl[1] << 8 |
11304 hdr->fh_f_ctl[2]);
11305 /* If last frame of sequence we can return success. */
11306 if (fctl & FC_FC_END_SEQ)
11307 return 1;
11308 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
11309 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
11310 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
11311 /* If there is a hole in the sequence count then fail. */
James Smarteeead812009-12-21 17:01:23 -050011312 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
James Smart4f774512009-05-22 14:52:35 -040011313 return 0;
11314 fctl = (hdr->fh_f_ctl[0] << 16 |
11315 hdr->fh_f_ctl[1] << 8 |
11316 hdr->fh_f_ctl[2]);
11317 /* If last frame of sequence we can return success. */
11318 if (fctl & FC_FC_END_SEQ)
11319 return 1;
11320 }
11321 return 0;
11322}
11323
11324/**
11325 * lpfc_prep_seq - Prep sequence for ULP processing
11326 * @vport: Pointer to the vport on which this sequence was received
11327 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11328 *
11329 * This function takes a sequence, described by a list of frames, and creates
11330 * a list of iocbq structures to describe the sequence. This iocbq list will be
11331 * used to issue to the generic unsolicited sequence handler. This routine
11332 * returns a pointer to the first iocbq in the list. If the function is unable
11333 * to allocate an iocbq then it throw out the received frames that were not
11334 * able to be described and return a pointer to the first iocbq. If unable to
11335 * allocate any iocbqs (including the first) this function will return NULL.
11336 **/
11337static struct lpfc_iocbq *
11338lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
11339{
11340 struct lpfc_dmabuf *d_buf, *n_buf;
11341 struct lpfc_iocbq *first_iocbq, *iocbq;
11342 struct fc_frame_header *fc_hdr;
11343 uint32_t sid;
James Smarteeead812009-12-21 17:01:23 -050011344 struct ulp_bde64 *pbde;
James Smart4f774512009-05-22 14:52:35 -040011345
11346 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
11347 /* remove from receive buffer list */
11348 list_del_init(&seq_dmabuf->hbuf.list);
James Smart45ed1192009-10-02 15:17:02 -040011349 lpfc_update_rcv_time_stamp(vport);
James Smart4f774512009-05-22 14:52:35 -040011350 /* get the Remote Port's SID */
James Smart6669f9b2009-10-02 15:16:45 -040011351 sid = sli4_sid_from_fc_hdr(fc_hdr);
James Smart4f774512009-05-22 14:52:35 -040011352 /* Get an iocbq struct to fill in. */
11353 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
11354 if (first_iocbq) {
11355 /* Initialize the first IOCB. */
James Smart8fa38512009-07-19 10:01:03 -040011356 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
James Smart4f774512009-05-22 14:52:35 -040011357 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
11358 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
11359 first_iocbq->iocb.ulpContext = be16_to_cpu(fc_hdr->fh_ox_id);
11360 first_iocbq->iocb.unsli3.rcvsli3.vpi =
11361 vport->vpi + vport->phba->vpi_base;
11362 /* put the first buffer into the first IOCBq */
11363 first_iocbq->context2 = &seq_dmabuf->dbuf;
11364 first_iocbq->context3 = NULL;
11365 first_iocbq->iocb.ulpBdeCount = 1;
11366 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
11367 LPFC_DATA_BUF_SIZE;
11368 first_iocbq->iocb.un.rcvels.remoteID = sid;
James Smart8fa38512009-07-19 10:01:03 -040011369 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
James Smart4d9ab992009-10-02 15:16:39 -040011370 bf_get(lpfc_rcqe_length,
11371 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
James Smart4f774512009-05-22 14:52:35 -040011372 }
11373 iocbq = first_iocbq;
11374 /*
11375 * Each IOCBq can have two Buffers assigned, so go through the list
11376 * of buffers for this sequence and save two buffers in each IOCBq
11377 */
11378 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
11379 if (!iocbq) {
11380 lpfc_in_buf_free(vport->phba, d_buf);
11381 continue;
11382 }
11383 if (!iocbq->context3) {
11384 iocbq->context3 = d_buf;
11385 iocbq->iocb.ulpBdeCount++;
James Smarteeead812009-12-21 17:01:23 -050011386 pbde = (struct ulp_bde64 *)
11387 &iocbq->iocb.unsli3.sli3Words[4];
11388 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
James Smart8fa38512009-07-19 10:01:03 -040011389 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
James Smart4d9ab992009-10-02 15:16:39 -040011390 bf_get(lpfc_rcqe_length,
11391 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
James Smart4f774512009-05-22 14:52:35 -040011392 } else {
11393 iocbq = lpfc_sli_get_iocbq(vport->phba);
11394 if (!iocbq) {
11395 if (first_iocbq) {
11396 first_iocbq->iocb.ulpStatus =
11397 IOSTAT_FCP_RSP_ERROR;
11398 first_iocbq->iocb.un.ulpWord[4] =
11399 IOERR_NO_RESOURCES;
11400 }
11401 lpfc_in_buf_free(vport->phba, d_buf);
11402 continue;
11403 }
11404 iocbq->context2 = d_buf;
11405 iocbq->context3 = NULL;
11406 iocbq->iocb.ulpBdeCount = 1;
11407 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
11408 LPFC_DATA_BUF_SIZE;
James Smart8fa38512009-07-19 10:01:03 -040011409 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
James Smart4d9ab992009-10-02 15:16:39 -040011410 bf_get(lpfc_rcqe_length,
11411 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
James Smart4f774512009-05-22 14:52:35 -040011412 iocbq->iocb.un.rcvels.remoteID = sid;
11413 list_add_tail(&iocbq->list, &first_iocbq->list);
11414 }
11415 }
11416 return first_iocbq;
11417}
11418
James Smart6669f9b2009-10-02 15:16:45 -040011419static void
11420lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
11421 struct hbq_dmabuf *seq_dmabuf)
11422{
11423 struct fc_frame_header *fc_hdr;
11424 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
11425 struct lpfc_hba *phba = vport->phba;
11426
11427 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
11428 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
11429 if (!iocbq) {
11430 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11431 "2707 Ring %d handler: Failed to allocate "
11432 "iocb Rctl x%x Type x%x received\n",
11433 LPFC_ELS_RING,
11434 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
11435 return;
11436 }
11437 if (!lpfc_complete_unsol_iocb(phba,
11438 &phba->sli.ring[LPFC_ELS_RING],
11439 iocbq, fc_hdr->fh_r_ctl,
11440 fc_hdr->fh_type))
11441 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11442 "2540 Ring %d handler: unexpected Rctl "
11443 "x%x Type x%x received\n",
11444 LPFC_ELS_RING,
11445 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
11446
11447 /* Free iocb created in lpfc_prep_seq */
11448 list_for_each_entry_safe(curr_iocb, next_iocb,
11449 &iocbq->list, list) {
11450 list_del_init(&curr_iocb->list);
11451 lpfc_sli_release_iocbq(phba, curr_iocb);
11452 }
11453 lpfc_sli_release_iocbq(phba, iocbq);
11454}
11455
James Smart4f774512009-05-22 14:52:35 -040011456/**
11457 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
11458 * @phba: Pointer to HBA context object.
11459 *
11460 * This function is called with no lock held. This function processes all
11461 * the received buffers and gives it to upper layers when a received buffer
11462 * indicates that it is the final frame in the sequence. The interrupt
11463 * service routine processes received buffers at interrupt contexts and adds
11464 * received dma buffers to the rb_pend_list queue and signals the worker thread.
11465 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
11466 * appropriate receive function when the final frame in a sequence is received.
11467 **/
James Smart4d9ab992009-10-02 15:16:39 -040011468void
11469lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
11470 struct hbq_dmabuf *dmabuf)
James Smart4f774512009-05-22 14:52:35 -040011471{
James Smart4d9ab992009-10-02 15:16:39 -040011472 struct hbq_dmabuf *seq_dmabuf;
James Smart4f774512009-05-22 14:52:35 -040011473 struct fc_frame_header *fc_hdr;
11474 struct lpfc_vport *vport;
11475 uint32_t fcfi;
James Smart4f774512009-05-22 14:52:35 -040011476
James Smart4f774512009-05-22 14:52:35 -040011477 /* Process each received buffer */
James Smart4d9ab992009-10-02 15:16:39 -040011478 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11479 /* check to see if this a valid type of frame */
11480 if (lpfc_fc_frame_check(phba, fc_hdr)) {
11481 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11482 return;
11483 }
11484 fcfi = bf_get(lpfc_rcqe_fcf_id, &dmabuf->cq_event.cqe.rcqe_cmpl);
11485 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
James Smartc8685952009-11-18 15:39:16 -050011486 if (!vport || !(vport->vpi_state & LPFC_VPI_REGISTERED)) {
James Smart4d9ab992009-10-02 15:16:39 -040011487 /* throw out the frame */
11488 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11489 return;
11490 }
James Smart6669f9b2009-10-02 15:16:45 -040011491 /* Handle the basic abort sequence (BA_ABTS) event */
11492 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
11493 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
11494 return;
11495 }
11496
James Smart4d9ab992009-10-02 15:16:39 -040011497 /* Link this frame */
11498 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
11499 if (!seq_dmabuf) {
11500 /* unable to add frame to vport - throw it out */
11501 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11502 return;
11503 }
11504 /* If not last frame in sequence continue processing frames. */
James Smartdef9c7a2009-12-21 17:02:28 -050011505 if (!lpfc_seq_complete(seq_dmabuf))
James Smart4d9ab992009-10-02 15:16:39 -040011506 return;
James Smartdef9c7a2009-12-21 17:02:28 -050011507
James Smart6669f9b2009-10-02 15:16:45 -040011508 /* Send the complete sequence to the upper layer protocol */
11509 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
James Smart4f774512009-05-22 14:52:35 -040011510}
James Smart6fb120a2009-05-22 14:52:59 -040011511
11512/**
11513 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
11514 * @phba: pointer to lpfc hba data structure.
11515 *
11516 * This routine is invoked to post rpi header templates to the
11517 * HBA consistent with the SLI-4 interface spec. This routine
11518 * posts a PAGE_SIZE memory region to the port to hold up to
11519 * PAGE_SIZE modulo 64 rpi context headers.
11520 *
11521 * This routine does not require any locks. It's usage is expected
11522 * to be driver load or reset recovery when the driver is
11523 * sequential.
11524 *
11525 * Return codes
André Goddard Rosaaf901ca2009-11-14 13:09:05 -020011526 * 0 - successful
James Smart6fb120a2009-05-22 14:52:59 -040011527 * EIO - The mailbox failed to complete successfully.
11528 * When this error occurs, the driver is not guaranteed
11529 * to have any rpi regions posted to the device and
11530 * must either attempt to repost the regions or take a
11531 * fatal error.
11532 **/
11533int
11534lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
11535{
11536 struct lpfc_rpi_hdr *rpi_page;
11537 uint32_t rc = 0;
11538
11539 /* Post all rpi memory regions to the port. */
11540 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
11541 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
11542 if (rc != MBX_SUCCESS) {
11543 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11544 "2008 Error %d posting all rpi "
11545 "headers\n", rc);
11546 rc = -EIO;
11547 break;
11548 }
11549 }
11550
11551 return rc;
11552}
11553
11554/**
11555 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
11556 * @phba: pointer to lpfc hba data structure.
11557 * @rpi_page: pointer to the rpi memory region.
11558 *
11559 * This routine is invoked to post a single rpi header to the
11560 * HBA consistent with the SLI-4 interface spec. This memory region
11561 * maps up to 64 rpi context regions.
11562 *
11563 * Return codes
André Goddard Rosaaf901ca2009-11-14 13:09:05 -020011564 * 0 - successful
James Smart6fb120a2009-05-22 14:52:59 -040011565 * ENOMEM - No available memory
11566 * EIO - The mailbox failed to complete successfully.
11567 **/
11568int
11569lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
11570{
11571 LPFC_MBOXQ_t *mboxq;
11572 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
11573 uint32_t rc = 0;
11574 uint32_t mbox_tmo;
11575 uint32_t shdr_status, shdr_add_status;
11576 union lpfc_sli4_cfg_shdr *shdr;
11577
11578 /* The port is notified of the header region via a mailbox command. */
11579 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11580 if (!mboxq) {
11581 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11582 "2001 Unable to allocate memory for issuing "
11583 "SLI_CONFIG_SPECIAL mailbox command\n");
11584 return -ENOMEM;
11585 }
11586
11587 /* Post all rpi memory regions to the port. */
11588 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
11589 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
11590 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
11591 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
11592 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
11593 sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
11594 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
11595 hdr_tmpl, rpi_page->page_count);
11596 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
11597 rpi_page->start_rpi);
11598 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
11599 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
James Smartf1126682009-06-10 17:22:44 -040011600 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
James Smart6fb120a2009-05-22 14:52:59 -040011601 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
11602 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11603 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11604 if (rc != MBX_TIMEOUT)
11605 mempool_free(mboxq, phba->mbox_mem_pool);
11606 if (shdr_status || shdr_add_status || rc) {
11607 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11608 "2514 POST_RPI_HDR mailbox failed with "
11609 "status x%x add_status x%x, mbx status x%x\n",
11610 shdr_status, shdr_add_status, rc);
11611 rc = -ENXIO;
11612 }
11613 return rc;
11614}
11615
11616/**
11617 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
11618 * @phba: pointer to lpfc hba data structure.
11619 *
11620 * This routine is invoked to post rpi header templates to the
11621 * HBA consistent with the SLI-4 interface spec. This routine
11622 * posts a PAGE_SIZE memory region to the port to hold up to
11623 * PAGE_SIZE modulo 64 rpi context headers.
11624 *
11625 * Returns
André Goddard Rosaaf901ca2009-11-14 13:09:05 -020011626 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
James Smart6fb120a2009-05-22 14:52:59 -040011627 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
11628 **/
11629int
11630lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
11631{
11632 int rpi;
11633 uint16_t max_rpi, rpi_base, rpi_limit;
11634 uint16_t rpi_remaining;
11635 struct lpfc_rpi_hdr *rpi_hdr;
11636
11637 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
11638 rpi_base = phba->sli4_hba.max_cfg_param.rpi_base;
11639 rpi_limit = phba->sli4_hba.next_rpi;
11640
11641 /*
11642 * The valid rpi range is not guaranteed to be zero-based. Start
11643 * the search at the rpi_base as reported by the port.
11644 */
11645 spin_lock_irq(&phba->hbalock);
11646 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, rpi_base);
11647 if (rpi >= rpi_limit || rpi < rpi_base)
11648 rpi = LPFC_RPI_ALLOC_ERROR;
11649 else {
11650 set_bit(rpi, phba->sli4_hba.rpi_bmask);
11651 phba->sli4_hba.max_cfg_param.rpi_used++;
11652 phba->sli4_hba.rpi_count++;
11653 }
11654
11655 /*
11656 * Don't try to allocate more rpi header regions if the device limit
11657 * on available rpis max has been exhausted.
11658 */
11659 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
11660 (phba->sli4_hba.rpi_count >= max_rpi)) {
11661 spin_unlock_irq(&phba->hbalock);
11662 return rpi;
11663 }
11664
11665 /*
11666 * If the driver is running low on rpi resources, allocate another
11667 * page now. Note that the next_rpi value is used because
11668 * it represents how many are actually in use whereas max_rpi notes
11669 * how many are supported max by the device.
11670 */
11671 rpi_remaining = phba->sli4_hba.next_rpi - rpi_base -
11672 phba->sli4_hba.rpi_count;
11673 spin_unlock_irq(&phba->hbalock);
11674 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
11675 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
11676 if (!rpi_hdr) {
11677 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11678 "2002 Error Could not grow rpi "
11679 "count\n");
11680 } else {
11681 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
11682 }
11683 }
11684
11685 return rpi;
11686}
11687
11688/**
11689 * lpfc_sli4_free_rpi - Release an rpi for reuse.
11690 * @phba: pointer to lpfc hba data structure.
11691 *
11692 * This routine is invoked to release an rpi to the pool of
11693 * available rpis maintained by the driver.
11694 **/
11695void
11696lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
11697{
11698 spin_lock_irq(&phba->hbalock);
11699 clear_bit(rpi, phba->sli4_hba.rpi_bmask);
11700 phba->sli4_hba.rpi_count--;
11701 phba->sli4_hba.max_cfg_param.rpi_used--;
11702 spin_unlock_irq(&phba->hbalock);
11703}
11704
11705/**
11706 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
11707 * @phba: pointer to lpfc hba data structure.
11708 *
11709 * This routine is invoked to remove the memory region that
11710 * provided rpi via a bitmask.
11711 **/
11712void
11713lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
11714{
11715 kfree(phba->sli4_hba.rpi_bmask);
11716}
11717
11718/**
11719 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
11720 * @phba: pointer to lpfc hba data structure.
11721 *
11722 * This routine is invoked to remove the memory region that
11723 * provided rpi via a bitmask.
11724 **/
11725int
11726lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp)
11727{
11728 LPFC_MBOXQ_t *mboxq;
11729 struct lpfc_hba *phba = ndlp->phba;
11730 int rc;
11731
11732 /* The port is notified of the header region via a mailbox command. */
11733 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11734 if (!mboxq)
11735 return -ENOMEM;
11736
11737 /* Post all rpi memory regions to the port. */
11738 lpfc_resume_rpi(mboxq, ndlp);
11739 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
11740 if (rc == MBX_NOT_FINISHED) {
11741 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11742 "2010 Resume RPI Mailbox failed "
11743 "status %d, mbxStatus x%x\n", rc,
11744 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
11745 mempool_free(mboxq, phba->mbox_mem_pool);
11746 return -EIO;
11747 }
11748 return 0;
11749}
11750
11751/**
11752 * lpfc_sli4_init_vpi - Initialize a vpi with the port
11753 * @phba: pointer to lpfc hba data structure.
11754 * @vpi: vpi value to activate with the port.
11755 *
11756 * This routine is invoked to activate a vpi with the
11757 * port when the host intends to use vports with a
11758 * nonzero vpi.
11759 *
11760 * Returns:
11761 * 0 success
11762 * -Evalue otherwise
11763 **/
11764int
11765lpfc_sli4_init_vpi(struct lpfc_hba *phba, uint16_t vpi)
11766{
11767 LPFC_MBOXQ_t *mboxq;
11768 int rc = 0;
James Smart6a9c52c2009-10-02 15:16:51 -040011769 int retval = MBX_SUCCESS;
James Smart6fb120a2009-05-22 14:52:59 -040011770 uint32_t mbox_tmo;
11771
11772 if (vpi == 0)
11773 return -EINVAL;
11774 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11775 if (!mboxq)
11776 return -ENOMEM;
James Smart1c6834a2009-07-19 10:01:26 -040011777 lpfc_init_vpi(phba, mboxq, vpi);
James Smart6fb120a2009-05-22 14:52:59 -040011778 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_INIT_VPI);
11779 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
James Smart6fb120a2009-05-22 14:52:59 -040011780 if (rc != MBX_SUCCESS) {
11781 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11782 "2022 INIT VPI Mailbox failed "
11783 "status %d, mbxStatus x%x\n", rc,
11784 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
James Smart6a9c52c2009-10-02 15:16:51 -040011785 retval = -EIO;
James Smart6fb120a2009-05-22 14:52:59 -040011786 }
James Smart6a9c52c2009-10-02 15:16:51 -040011787 if (rc != MBX_TIMEOUT)
11788 mempool_free(mboxq, phba->mbox_mem_pool);
11789
11790 return retval;
James Smart6fb120a2009-05-22 14:52:59 -040011791}
11792
11793/**
11794 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
11795 * @phba: pointer to lpfc hba data structure.
11796 * @mboxq: Pointer to mailbox object.
11797 *
11798 * This routine is invoked to manually add a single FCF record. The caller
11799 * must pass a completely initialized FCF_Record. This routine takes
11800 * care of the nonembedded mailbox operations.
11801 **/
11802static void
11803lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11804{
11805 void *virt_addr;
11806 union lpfc_sli4_cfg_shdr *shdr;
11807 uint32_t shdr_status, shdr_add_status;
11808
11809 virt_addr = mboxq->sge_array->addr[0];
11810 /* The IOCTL status is embedded in the mailbox subheader. */
11811 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
11812 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11813 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11814
11815 if ((shdr_status || shdr_add_status) &&
11816 (shdr_status != STATUS_FCF_IN_USE))
11817 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11818 "2558 ADD_FCF_RECORD mailbox failed with "
11819 "status x%x add_status x%x\n",
11820 shdr_status, shdr_add_status);
11821
11822 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11823}
11824
11825/**
11826 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
11827 * @phba: pointer to lpfc hba data structure.
11828 * @fcf_record: pointer to the initialized fcf record to add.
11829 *
11830 * This routine is invoked to manually add a single FCF record. The caller
11831 * must pass a completely initialized FCF_Record. This routine takes
11832 * care of the nonembedded mailbox operations.
11833 **/
11834int
11835lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
11836{
11837 int rc = 0;
11838 LPFC_MBOXQ_t *mboxq;
11839 uint8_t *bytep;
11840 void *virt_addr;
11841 dma_addr_t phys_addr;
11842 struct lpfc_mbx_sge sge;
11843 uint32_t alloc_len, req_len;
11844 uint32_t fcfindex;
11845
11846 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11847 if (!mboxq) {
11848 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11849 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
11850 return -ENOMEM;
11851 }
11852
11853 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
11854 sizeof(uint32_t);
11855
11856 /* Allocate DMA memory and set up the non-embedded mailbox command */
11857 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
11858 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
11859 req_len, LPFC_SLI4_MBX_NEMBED);
11860 if (alloc_len < req_len) {
11861 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11862 "2523 Allocated DMA memory size (x%x) is "
11863 "less than the requested DMA memory "
11864 "size (x%x)\n", alloc_len, req_len);
11865 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11866 return -ENOMEM;
11867 }
11868
11869 /*
11870 * Get the first SGE entry from the non-embedded DMA memory. This
11871 * routine only uses a single SGE.
11872 */
11873 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
11874 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
James Smart6fb120a2009-05-22 14:52:59 -040011875 virt_addr = mboxq->sge_array->addr[0];
11876 /*
11877 * Configure the FCF record for FCFI 0. This is the driver's
11878 * hardcoded default and gets used in nonFIP mode.
11879 */
11880 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
11881 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
11882 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
11883
11884 /*
11885 * Copy the fcf_index and the FCF Record Data. The data starts after
11886 * the FCoE header plus word10. The data copy needs to be endian
11887 * correct.
11888 */
11889 bytep += sizeof(uint32_t);
11890 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
11891 mboxq->vport = phba->pport;
11892 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
11893 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
11894 if (rc == MBX_NOT_FINISHED) {
11895 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11896 "2515 ADD_FCF_RECORD mailbox failed with "
11897 "status 0x%x\n", rc);
11898 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11899 rc = -EIO;
11900 } else
11901 rc = 0;
11902
11903 return rc;
11904}
11905
11906/**
11907 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
11908 * @phba: pointer to lpfc hba data structure.
11909 * @fcf_record: pointer to the fcf record to write the default data.
11910 * @fcf_index: FCF table entry index.
11911 *
11912 * This routine is invoked to build the driver's default FCF record. The
11913 * values used are hardcoded. This routine handles memory initialization.
11914 *
11915 **/
11916void
11917lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
11918 struct fcf_record *fcf_record,
11919 uint16_t fcf_index)
11920{
11921 memset(fcf_record, 0, sizeof(struct fcf_record));
11922 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
11923 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
11924 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
11925 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
11926 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
11927 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
11928 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
11929 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
11930 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
11931 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
11932 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
11933 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
11934 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
James Smart0c287582009-06-10 17:22:56 -040011935 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
James Smart6fb120a2009-05-22 14:52:59 -040011936 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
11937 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
11938 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
11939 /* Set the VLAN bit map */
11940 if (phba->valid_vlan) {
11941 fcf_record->vlan_bitmap[phba->vlan_id / 8]
11942 = 1 << (phba->vlan_id % 8);
11943 }
11944}
11945
11946/**
11947 * lpfc_sli4_read_fcf_record - Read the driver's default FCF Record.
11948 * @phba: pointer to lpfc hba data structure.
11949 * @fcf_index: FCF table entry offset.
11950 *
11951 * This routine is invoked to read up to @fcf_num of FCF record from the
11952 * device starting with the given @fcf_index.
11953 **/
11954int
11955lpfc_sli4_read_fcf_record(struct lpfc_hba *phba, uint16_t fcf_index)
11956{
11957 int rc = 0, error;
11958 LPFC_MBOXQ_t *mboxq;
11959 void *virt_addr;
11960 dma_addr_t phys_addr;
11961 uint8_t *bytep;
11962 struct lpfc_mbx_sge sge;
11963 uint32_t alloc_len, req_len;
11964 struct lpfc_mbx_read_fcf_tbl *read_fcf;
11965
James Smart32b97932009-07-19 10:01:21 -040011966 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
James Smart6fb120a2009-05-22 14:52:59 -040011967 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11968 if (!mboxq) {
11969 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11970 "2000 Failed to allocate mbox for "
11971 "READ_FCF cmd\n");
James Smart4d9ab992009-10-02 15:16:39 -040011972 error = -ENOMEM;
11973 goto fail_fcfscan;
James Smart6fb120a2009-05-22 14:52:59 -040011974 }
11975
11976 req_len = sizeof(struct fcf_record) +
11977 sizeof(union lpfc_sli4_cfg_shdr) + 2 * sizeof(uint32_t);
11978
11979 /* Set up READ_FCF SLI4_CONFIG mailbox-ioctl command */
11980 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
11981 LPFC_MBOX_OPCODE_FCOE_READ_FCF_TABLE, req_len,
11982 LPFC_SLI4_MBX_NEMBED);
11983
11984 if (alloc_len < req_len) {
11985 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11986 "0291 Allocated DMA memory size (x%x) is "
11987 "less than the requested DMA memory "
11988 "size (x%x)\n", alloc_len, req_len);
James Smart4d9ab992009-10-02 15:16:39 -040011989 error = -ENOMEM;
11990 goto fail_fcfscan;
James Smart6fb120a2009-05-22 14:52:59 -040011991 }
11992
11993 /* Get the first SGE entry from the non-embedded DMA memory. This
11994 * routine only uses a single SGE.
11995 */
11996 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
11997 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
James Smart6fb120a2009-05-22 14:52:59 -040011998 virt_addr = mboxq->sge_array->addr[0];
11999 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
12000
12001 /* Set up command fields */
12002 bf_set(lpfc_mbx_read_fcf_tbl_indx, &read_fcf->u.request, fcf_index);
12003 /* Perform necessary endian conversion */
12004 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
12005 lpfc_sli_pcimem_bcopy(bytep, bytep, sizeof(uint32_t));
12006 mboxq->vport = phba->pport;
12007 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_record;
12008 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
12009 if (rc == MBX_NOT_FINISHED) {
James Smart6fb120a2009-05-22 14:52:59 -040012010 error = -EIO;
James Smart32b97932009-07-19 10:01:21 -040012011 } else {
12012 spin_lock_irq(&phba->hbalock);
12013 phba->hba_flag |= FCF_DISC_INPROGRESS;
12014 spin_unlock_irq(&phba->hbalock);
James Smart6fb120a2009-05-22 14:52:59 -040012015 error = 0;
James Smart32b97932009-07-19 10:01:21 -040012016 }
James Smart4d9ab992009-10-02 15:16:39 -040012017fail_fcfscan:
12018 if (error) {
12019 if (mboxq)
12020 lpfc_sli4_mbox_cmd_free(phba, mboxq);
12021 /* FCF scan failed, clear FCF_DISC_INPROGRESS flag */
12022 spin_lock_irq(&phba->hbalock);
12023 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
12024 spin_unlock_irq(&phba->hbalock);
12025 }
James Smart6fb120a2009-05-22 14:52:59 -040012026 return error;
12027}
James Smarta0c87cb2009-07-19 10:01:10 -040012028
12029/**
12030 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
12031 * @phba: pointer to lpfc hba data structure.
12032 *
12033 * This function read region 23 and parse TLV for port status to
12034 * decide if the user disaled the port. If the TLV indicates the
12035 * port is disabled, the hba_flag is set accordingly.
12036 **/
12037void
12038lpfc_sli_read_link_ste(struct lpfc_hba *phba)
12039{
12040 LPFC_MBOXQ_t *pmb = NULL;
12041 MAILBOX_t *mb;
12042 uint8_t *rgn23_data = NULL;
12043 uint32_t offset = 0, data_size, sub_tlv_len, tlv_offset;
12044 int rc;
12045
12046 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12047 if (!pmb) {
12048 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12049 "2600 lpfc_sli_read_serdes_param failed to"
12050 " allocate mailbox memory\n");
12051 goto out;
12052 }
12053 mb = &pmb->u.mb;
12054
12055 /* Get adapter Region 23 data */
12056 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
12057 if (!rgn23_data)
12058 goto out;
12059
12060 do {
12061 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
12062 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
12063
12064 if (rc != MBX_SUCCESS) {
12065 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12066 "2601 lpfc_sli_read_link_ste failed to"
12067 " read config region 23 rc 0x%x Status 0x%x\n",
12068 rc, mb->mbxStatus);
12069 mb->un.varDmp.word_cnt = 0;
12070 }
12071 /*
12072 * dump mem may return a zero when finished or we got a
12073 * mailbox error, either way we are done.
12074 */
12075 if (mb->un.varDmp.word_cnt == 0)
12076 break;
12077 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
12078 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
12079
12080 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
12081 rgn23_data + offset,
12082 mb->un.varDmp.word_cnt);
12083 offset += mb->un.varDmp.word_cnt;
12084 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
12085
12086 data_size = offset;
12087 offset = 0;
12088
12089 if (!data_size)
12090 goto out;
12091
12092 /* Check the region signature first */
12093 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
12094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12095 "2619 Config region 23 has bad signature\n");
12096 goto out;
12097 }
12098 offset += 4;
12099
12100 /* Check the data structure version */
12101 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
12102 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12103 "2620 Config region 23 has bad version\n");
12104 goto out;
12105 }
12106 offset += 4;
12107
12108 /* Parse TLV entries in the region */
12109 while (offset < data_size) {
12110 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
12111 break;
12112 /*
12113 * If the TLV is not driver specific TLV or driver id is
12114 * not linux driver id, skip the record.
12115 */
12116 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
12117 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
12118 (rgn23_data[offset + 3] != 0)) {
12119 offset += rgn23_data[offset + 1] * 4 + 4;
12120 continue;
12121 }
12122
12123 /* Driver found a driver specific TLV in the config region */
12124 sub_tlv_len = rgn23_data[offset + 1] * 4;
12125 offset += 4;
12126 tlv_offset = 0;
12127
12128 /*
12129 * Search for configured port state sub-TLV.
12130 */
12131 while ((offset < data_size) &&
12132 (tlv_offset < sub_tlv_len)) {
12133 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
12134 offset += 4;
12135 tlv_offset += 4;
12136 break;
12137 }
12138 if (rgn23_data[offset] != PORT_STE_TYPE) {
12139 offset += rgn23_data[offset + 1] * 4 + 4;
12140 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
12141 continue;
12142 }
12143
12144 /* This HBA contains PORT_STE configured */
12145 if (!rgn23_data[offset + 2])
12146 phba->hba_flag |= LINK_DISABLED;
12147
12148 goto out;
12149 }
12150 }
12151out:
12152 if (pmb)
12153 mempool_free(pmb, phba->mbox_mem_pool);
12154 kfree(rgn23_data);
12155 return;
12156}
James Smart695a8142010-01-26 23:08:03 -050012157
12158/**
12159 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
12160 * @vport: pointer to vport data structure.
12161 *
12162 * This function iterate through the mailboxq and clean up all REG_LOGIN
12163 * and REG_VPI mailbox commands associated with the vport. This function
12164 * is called when driver want to restart discovery of the vport due to
12165 * a Clear Virtual Link event.
12166 **/
12167void
12168lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
12169{
12170 struct lpfc_hba *phba = vport->phba;
12171 LPFC_MBOXQ_t *mb, *nextmb;
12172 struct lpfc_dmabuf *mp;
12173
12174 spin_lock_irq(&phba->hbalock);
12175 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
12176 if (mb->vport != vport)
12177 continue;
12178
12179 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
12180 (mb->u.mb.mbxCommand != MBX_REG_VPI))
12181 continue;
12182
12183 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
12184 mp = (struct lpfc_dmabuf *) (mb->context1);
12185 if (mp) {
12186 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
12187 kfree(mp);
12188 }
12189 }
12190 list_del(&mb->list);
12191 mempool_free(mb, phba->mbox_mem_pool);
12192 }
12193 mb = phba->sli.mbox_active;
12194 if (mb && (mb->vport == vport)) {
12195 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
12196 (mb->u.mb.mbxCommand == MBX_REG_VPI))
12197 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12198 }
12199 spin_unlock_irq(&phba->hbalock);
12200}
12201