1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2009 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/interrupt.h>
25 #include <linux/delay.h>
26 #include <linux/slab.h>
28 #include <scsi/scsi.h>
29 #include <scsi/scsi_cmnd.h>
30 #include <scsi/scsi_device.h>
31 #include <scsi/scsi_host.h>
32 #include <scsi/scsi_transport_fc.h>
33 #include <scsi/fc/fc_fs.h>
34 #include <linux/aer.h>
39 #include "lpfc_sli4.h"
41 #include "lpfc_disc.h"
42 #include "lpfc_scsi.h"
44 #include "lpfc_crtn.h"
45 #include "lpfc_logmsg.h"
46 #include "lpfc_compat.h"
47 #include "lpfc_debugfs.h"
48 #include "lpfc_vport.h"
50 /* There are only four IOCB completion types. */
51 typedef enum _lpfc_iocb_type {
59 /* Provide function prototypes local to this module. */
60 static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
62 static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
63 uint8_t *, uint32_t *);
64 static struct lpfc_iocbq *lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *,
66 static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *,
69 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
75 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
76 * @q: The Work Queue to operate on.
77 * @wqe: The work Queue Entry to put on the Work queue.
79 * This routine will copy the contents of @wqe to the next available entry on
80 * the @q. This function will then ring the Work Queue Doorbell to signal the
81 * HBA to start processing the Work Queue Entry. This function returns 0 if
82 * successful. If no entries are available on @q then this function will return
84 * The caller is expected to hold the hbalock when calling this routine.
87 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
89 union lpfc_wqe *temp_wqe = q->qe[q->host_index].wqe;
90 struct lpfc_register doorbell;
93 /* If the host has not yet processed the next entry then we are done */
94 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
96 /* set consumption flag every once in a while */
97 if (!((q->host_index + 1) % LPFC_RELEASE_NOTIFICATION_INTERVAL))
98 bf_set(lpfc_wqe_gen_wqec, &wqe->generic, 1);
100 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
102 /* Update the host index before invoking device */
103 host_index = q->host_index;
104 q->host_index = ((q->host_index + 1) % q->entry_count);
108 bf_set(lpfc_wq_doorbell_num_posted, &doorbell, 1);
109 bf_set(lpfc_wq_doorbell_index, &doorbell, host_index);
110 bf_set(lpfc_wq_doorbell_id, &doorbell, q->queue_id);
111 writel(doorbell.word0, q->phba->sli4_hba.WQDBregaddr);
112 readl(q->phba->sli4_hba.WQDBregaddr); /* Flush */
118 * lpfc_sli4_wq_release - Updates internal hba index for WQ
119 * @q: The Work Queue to operate on.
120 * @index: The index to advance the hba index to.
122 * This routine will update the HBA index of a queue to reflect consumption of
123 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
124 * an entry the host calls this function to update the queue's internal
125 * pointers. This routine returns the number of entries that were consumed by
129 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
131 uint32_t released = 0;
133 if (q->hba_index == index)
136 q->hba_index = ((q->hba_index + 1) % q->entry_count);
138 } while (q->hba_index != index);
143 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
144 * @q: The Mailbox Queue to operate on.
145 * @wqe: The Mailbox Queue Entry to put on the Work queue.
147 * This routine will copy the contents of @mqe to the next available entry on
148 * the @q. This function will then ring the Work Queue Doorbell to signal the
149 * HBA to start processing the Work Queue Entry. This function returns 0 if
150 * successful. If no entries are available on @q then this function will return
152 * The caller is expected to hold the hbalock when calling this routine.
155 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
157 struct lpfc_mqe *temp_mqe = q->qe[q->host_index].mqe;
158 struct lpfc_register doorbell;
161 /* If the host has not yet processed the next entry then we are done */
162 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
164 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
165 /* Save off the mailbox pointer for completion */
166 q->phba->mbox = (MAILBOX_t *)temp_mqe;
168 /* Update the host index before invoking device */
169 host_index = q->host_index;
170 q->host_index = ((q->host_index + 1) % q->entry_count);
174 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
175 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
176 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
177 readl(q->phba->sli4_hba.MQDBregaddr); /* Flush */
182 * lpfc_sli4_mq_release - Updates internal hba index for MQ
183 * @q: The Mailbox Queue to operate on.
185 * This routine will update the HBA index of a queue to reflect consumption of
186 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
187 * an entry the host calls this function to update the queue's internal
188 * pointers. This routine returns the number of entries that were consumed by
192 lpfc_sli4_mq_release(struct lpfc_queue *q)
194 /* Clear the mailbox pointer for completion */
195 q->phba->mbox = NULL;
196 q->hba_index = ((q->hba_index + 1) % q->entry_count);
201 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
202 * @q: The Event Queue to get the first valid EQE from
204 * This routine will get the first valid Event Queue Entry from @q, update
205 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
206 * the Queue (no more work to do), or the Queue is full of EQEs that have been
207 * processed, but not popped back to the HBA then this routine will return NULL.
209 static struct lpfc_eqe *
210 lpfc_sli4_eq_get(struct lpfc_queue *q)
212 struct lpfc_eqe *eqe = q->qe[q->hba_index].eqe;
214 /* If the next EQE is not valid then we are done */
215 if (!bf_get_le32(lpfc_eqe_valid, eqe))
217 /* If the host has not yet processed the next entry then we are done */
218 if (((q->hba_index + 1) % q->entry_count) == q->host_index)
221 q->hba_index = ((q->hba_index + 1) % q->entry_count);
226 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
227 * @q: The Event Queue that the host has completed processing for.
228 * @arm: Indicates whether the host wants to arms this CQ.
230 * This routine will mark all Event Queue Entries on @q, from the last
231 * known completed entry to the last entry that was processed, as completed
232 * by clearing the valid bit for each completion queue entry. Then it will
233 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
234 * The internal host index in the @q will be updated by this routine to indicate
235 * that the host has finished processing the entries. The @arm parameter
236 * indicates that the queue should be rearmed when ringing the doorbell.
238 * This function will return the number of EQEs that were popped.
241 lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
243 uint32_t released = 0;
244 struct lpfc_eqe *temp_eqe;
245 struct lpfc_register doorbell;
247 /* while there are valid entries */
248 while (q->hba_index != q->host_index) {
249 temp_eqe = q->qe[q->host_index].eqe;
250 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
252 q->host_index = ((q->host_index + 1) % q->entry_count);
254 if (unlikely(released == 0 && !arm))
257 /* ring doorbell for number popped */
260 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
261 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
263 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
264 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
265 bf_set(lpfc_eqcq_doorbell_eqid, &doorbell, q->queue_id);
266 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
267 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
268 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
269 readl(q->phba->sli4_hba.EQCQDBregaddr);
274 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
275 * @q: The Completion Queue to get the first valid CQE from
277 * This routine will get the first valid Completion Queue Entry from @q, update
278 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
279 * the Queue (no more work to do), or the Queue is full of CQEs that have been
280 * processed, but not popped back to the HBA then this routine will return NULL.
282 static struct lpfc_cqe *
283 lpfc_sli4_cq_get(struct lpfc_queue *q)
285 struct lpfc_cqe *cqe;
287 /* If the next CQE is not valid then we are done */
288 if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
290 /* If the host has not yet processed the next entry then we are done */
291 if (((q->hba_index + 1) % q->entry_count) == q->host_index)
294 cqe = q->qe[q->hba_index].cqe;
295 q->hba_index = ((q->hba_index + 1) % q->entry_count);
300 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
301 * @q: The Completion Queue that the host has completed processing for.
302 * @arm: Indicates whether the host wants to arms this CQ.
304 * This routine will mark all Completion queue entries on @q, from the last
305 * known completed entry to the last entry that was processed, as completed
306 * by clearing the valid bit for each completion queue entry. Then it will
307 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
308 * The internal host index in the @q will be updated by this routine to indicate
309 * that the host has finished processing the entries. The @arm parameter
310 * indicates that the queue should be rearmed when ringing the doorbell.
312 * This function will return the number of CQEs that were released.
315 lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
317 uint32_t released = 0;
318 struct lpfc_cqe *temp_qe;
319 struct lpfc_register doorbell;
321 /* while there are valid entries */
322 while (q->hba_index != q->host_index) {
323 temp_qe = q->qe[q->host_index].cqe;
324 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
326 q->host_index = ((q->host_index + 1) % q->entry_count);
328 if (unlikely(released == 0 && !arm))
331 /* ring doorbell for number popped */
334 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
335 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
336 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
337 bf_set(lpfc_eqcq_doorbell_cqid, &doorbell, q->queue_id);
338 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
343 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
344 * @q: The Header Receive Queue to operate on.
345 * @wqe: The Receive Queue Entry to put on the Receive queue.
347 * This routine will copy the contents of @wqe to the next available entry on
348 * the @q. This function will then ring the Receive Queue Doorbell to signal the
349 * HBA to start processing the Receive Queue Entry. This function returns the
350 * index that the rqe was copied to if successful. If no entries are available
351 * on @q then this function will return -ENOMEM.
352 * The caller is expected to hold the hbalock when calling this routine.
355 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
356 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
358 struct lpfc_rqe *temp_hrqe = hq->qe[hq->host_index].rqe;
359 struct lpfc_rqe *temp_drqe = dq->qe[dq->host_index].rqe;
360 struct lpfc_register doorbell;
361 int put_index = hq->host_index;
363 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
365 if (hq->host_index != dq->host_index)
367 /* If the host has not yet processed the next entry then we are done */
368 if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
370 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
371 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
373 /* Update the host index to point to the next slot */
374 hq->host_index = ((hq->host_index + 1) % hq->entry_count);
375 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
377 /* Ring The Header Receive Queue Doorbell */
378 if (!(hq->host_index % LPFC_RQ_POST_BATCH)) {
380 bf_set(lpfc_rq_doorbell_num_posted, &doorbell,
382 bf_set(lpfc_rq_doorbell_id, &doorbell, hq->queue_id);
383 writel(doorbell.word0, hq->phba->sli4_hba.RQDBregaddr);
389 * lpfc_sli4_rq_release - Updates internal hba index for RQ
390 * @q: The Header Receive Queue to operate on.
392 * This routine will update the HBA index of a queue to reflect consumption of
393 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
394 * consumed an entry the host calls this function to update the queue's
395 * internal pointers. This routine returns the number of entries that were
396 * consumed by the HBA.
399 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
401 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
403 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
404 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
409 * lpfc_cmd_iocb - Get next command iocb entry in the ring
410 * @phba: Pointer to HBA context object.
411 * @pring: Pointer to driver SLI ring object.
413 * This function returns pointer to next command iocb entry
414 * in the command ring. The caller must hold hbalock to prevent
415 * other threads consume the next command iocb.
416 * SLI-2/SLI-3 provide different sized iocbs.
418 static inline IOCB_t *
419 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
421 return (IOCB_t *) (((char *) pring->cmdringaddr) +
422 pring->cmdidx * phba->iocb_cmd_size);
426 * lpfc_resp_iocb - Get next response iocb entry in the ring
427 * @phba: Pointer to HBA context object.
428 * @pring: Pointer to driver SLI ring object.
430 * This function returns pointer to next response iocb entry
431 * in the response ring. The caller must hold hbalock to make sure
432 * that no other thread consume the next response iocb.
433 * SLI-2/SLI-3 provide different sized iocbs.
435 static inline IOCB_t *
436 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
438 return (IOCB_t *) (((char *) pring->rspringaddr) +
439 pring->rspidx * phba->iocb_rsp_size);
443 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
444 * @phba: Pointer to HBA context object.
446 * This function is called with hbalock held. This function
447 * allocates a new driver iocb object from the iocb pool. If the
448 * allocation is successful, it returns pointer to the newly
449 * allocated iocb object else it returns NULL.
451 static struct lpfc_iocbq *
452 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
454 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
455 struct lpfc_iocbq * iocbq = NULL;
457 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
461 if (phba->iocb_cnt > phba->iocb_max)
462 phba->iocb_max = phba->iocb_cnt;
467 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
468 * @phba: Pointer to HBA context object.
469 * @xritag: XRI value.
471 * This function clears the sglq pointer from the array of acive
472 * sglq's. The xritag that is passed in is used to index into the
473 * array. Before the xritag can be used it needs to be adjusted
474 * by subtracting the xribase.
476 * Returns sglq ponter = success, NULL = Failure.
478 static struct lpfc_sglq *
479 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
482 struct lpfc_sglq *sglq;
483 adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
484 if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri)
486 sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri];
487 phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = NULL;
492 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
493 * @phba: Pointer to HBA context object.
494 * @xritag: XRI value.
496 * This function returns the sglq pointer from the array of acive
497 * sglq's. The xritag that is passed in is used to index into the
498 * array. Before the xritag can be used it needs to be adjusted
499 * by subtracting the xribase.
501 * Returns sglq ponter = success, NULL = Failure.
504 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
507 struct lpfc_sglq *sglq;
508 adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
509 if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri)
511 sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri];
516 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
517 * @phba: Pointer to HBA context object.
519 * This function is called with hbalock held. This function
520 * Gets a new driver sglq object from the sglq list. If the
521 * list is not empty then it is successful, it returns pointer to the newly
522 * allocated sglq object else it returns NULL.
524 static struct lpfc_sglq *
525 __lpfc_sli_get_sglq(struct lpfc_hba *phba)
527 struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
528 struct lpfc_sglq *sglq = NULL;
530 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
533 adj_xri = sglq->sli4_xritag - phba->sli4_hba.max_cfg_param.xri_base;
534 phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = sglq;
535 sglq->state = SGL_ALLOCATED;
540 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
541 * @phba: Pointer to HBA context object.
543 * This function is called with no lock held. This function
544 * allocates a new driver iocb object from the iocb pool. If the
545 * allocation is successful, it returns pointer to the newly
546 * allocated iocb object else it returns NULL.
549 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
551 struct lpfc_iocbq * iocbq = NULL;
552 unsigned long iflags;
554 spin_lock_irqsave(&phba->hbalock, iflags);
555 iocbq = __lpfc_sli_get_iocbq(phba);
556 spin_unlock_irqrestore(&phba->hbalock, iflags);
561 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
562 * @phba: Pointer to HBA context object.
563 * @iocbq: Pointer to driver iocb object.
565 * This function is called with hbalock held to release driver
566 * iocb object to the iocb pool. The iotag in the iocb object
567 * does not change for each use of the iocb object. This function
568 * clears all other fields of the iocb object when it is freed.
569 * The sqlq structure that holds the xritag and phys and virtual
570 * mappings for the scatter gather list is retrieved from the
571 * active array of sglq. The get of the sglq pointer also clears
572 * the entry in the array. If the status of the IO indiactes that
573 * this IO was aborted then the sglq entry it put on the
574 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
575 * IO has good status or fails for any other reason then the sglq
576 * entry is added to the free list (lpfc_sgl_list).
579 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
581 struct lpfc_sglq *sglq;
582 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
583 unsigned long iflag = 0;
584 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
586 if (iocbq->sli4_xritag == NO_XRI)
589 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_xritag);
591 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
592 (sglq->state != SGL_XRI_ABORTED)) {
593 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
595 list_add(&sglq->list,
596 &phba->sli4_hba.lpfc_abts_els_sgl_list);
597 spin_unlock_irqrestore(
598 &phba->sli4_hba.abts_sgl_list_lock, iflag);
600 sglq->state = SGL_FREED;
601 list_add(&sglq->list, &phba->sli4_hba.lpfc_sgl_list);
603 /* Check if TXQ queue needs to be serviced */
605 lpfc_worker_wake_up(phba);
611 * Clean all volatile data fields, preserve iotag and node struct.
613 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
614 iocbq->sli4_xritag = NO_XRI;
615 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
620 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
621 * @phba: Pointer to HBA context object.
622 * @iocbq: Pointer to driver iocb object.
624 * This function is called with hbalock held to release driver
625 * iocb object to the iocb pool. The iotag in the iocb object
626 * does not change for each use of the iocb object. This function
627 * clears all other fields of the iocb object when it is freed.
630 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
632 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
635 * Clean all volatile data fields, preserve iotag and node struct.
637 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
638 iocbq->sli4_xritag = NO_XRI;
639 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
643 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
644 * @phba: Pointer to HBA context object.
645 * @iocbq: Pointer to driver iocb object.
647 * This function is called with hbalock held to release driver
648 * iocb object to the iocb pool. The iotag in the iocb object
649 * does not change for each use of the iocb object. This function
650 * clears all other fields of the iocb object when it is freed.
653 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
655 phba->__lpfc_sli_release_iocbq(phba, iocbq);
660 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
661 * @phba: Pointer to HBA context object.
662 * @iocbq: Pointer to driver iocb object.
664 * This function is called with no lock held to release the iocb to
668 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
670 unsigned long iflags;
673 * Clean all volatile data fields, preserve iotag and node struct.
675 spin_lock_irqsave(&phba->hbalock, iflags);
676 __lpfc_sli_release_iocbq(phba, iocbq);
677 spin_unlock_irqrestore(&phba->hbalock, iflags);
681 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
682 * @phba: Pointer to HBA context object.
683 * @iocblist: List of IOCBs.
684 * @ulpstatus: ULP status in IOCB command field.
685 * @ulpWord4: ULP word-4 in IOCB command field.
687 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
688 * on the list by invoking the complete callback function associated with the
689 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
693 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
694 uint32_t ulpstatus, uint32_t ulpWord4)
696 struct lpfc_iocbq *piocb;
698 while (!list_empty(iocblist)) {
699 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
701 if (!piocb->iocb_cmpl)
702 lpfc_sli_release_iocbq(phba, piocb);
704 piocb->iocb.ulpStatus = ulpstatus;
705 piocb->iocb.un.ulpWord[4] = ulpWord4;
706 (piocb->iocb_cmpl) (phba, piocb, piocb);
713 * lpfc_sli_iocb_cmd_type - Get the iocb type
714 * @iocb_cmnd: iocb command code.
716 * This function is called by ring event handler function to get the iocb type.
717 * This function translates the iocb command to an iocb command type used to
718 * decide the final disposition of each completed IOCB.
719 * The function returns
720 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
721 * LPFC_SOL_IOCB if it is a solicited iocb completion
722 * LPFC_ABORT_IOCB if it is an abort iocb
723 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
725 * The caller is not required to hold any lock.
727 static lpfc_iocb_type
728 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
730 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
732 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
736 case CMD_XMIT_SEQUENCE_CR:
737 case CMD_XMIT_SEQUENCE_CX:
738 case CMD_XMIT_BCAST_CN:
739 case CMD_XMIT_BCAST_CX:
740 case CMD_ELS_REQUEST_CR:
741 case CMD_ELS_REQUEST_CX:
742 case CMD_CREATE_XRI_CR:
743 case CMD_CREATE_XRI_CX:
745 case CMD_XMIT_ELS_RSP_CX:
747 case CMD_FCP_IWRITE_CR:
748 case CMD_FCP_IWRITE_CX:
749 case CMD_FCP_IREAD_CR:
750 case CMD_FCP_IREAD_CX:
751 case CMD_FCP_ICMND_CR:
752 case CMD_FCP_ICMND_CX:
753 case CMD_FCP_TSEND_CX:
754 case CMD_FCP_TRSP_CX:
755 case CMD_FCP_TRECEIVE_CX:
756 case CMD_FCP_AUTO_TRSP_CX:
757 case CMD_ADAPTER_MSG:
758 case CMD_ADAPTER_DUMP:
759 case CMD_XMIT_SEQUENCE64_CR:
760 case CMD_XMIT_SEQUENCE64_CX:
761 case CMD_XMIT_BCAST64_CN:
762 case CMD_XMIT_BCAST64_CX:
763 case CMD_ELS_REQUEST64_CR:
764 case CMD_ELS_REQUEST64_CX:
765 case CMD_FCP_IWRITE64_CR:
766 case CMD_FCP_IWRITE64_CX:
767 case CMD_FCP_IREAD64_CR:
768 case CMD_FCP_IREAD64_CX:
769 case CMD_FCP_ICMND64_CR:
770 case CMD_FCP_ICMND64_CX:
771 case CMD_FCP_TSEND64_CX:
772 case CMD_FCP_TRSP64_CX:
773 case CMD_FCP_TRECEIVE64_CX:
774 case CMD_GEN_REQUEST64_CR:
775 case CMD_GEN_REQUEST64_CX:
776 case CMD_XMIT_ELS_RSP64_CX:
777 case DSSCMD_IWRITE64_CR:
778 case DSSCMD_IWRITE64_CX:
779 case DSSCMD_IREAD64_CR:
780 case DSSCMD_IREAD64_CX:
781 type = LPFC_SOL_IOCB;
783 case CMD_ABORT_XRI_CN:
784 case CMD_ABORT_XRI_CX:
785 case CMD_CLOSE_XRI_CN:
786 case CMD_CLOSE_XRI_CX:
787 case CMD_XRI_ABORTED_CX:
788 case CMD_ABORT_MXRI64_CN:
789 case CMD_XMIT_BLS_RSP64_CX:
790 type = LPFC_ABORT_IOCB;
792 case CMD_RCV_SEQUENCE_CX:
793 case CMD_RCV_ELS_REQ_CX:
794 case CMD_RCV_SEQUENCE64_CX:
795 case CMD_RCV_ELS_REQ64_CX:
796 case CMD_ASYNC_STATUS:
797 case CMD_IOCB_RCV_SEQ64_CX:
798 case CMD_IOCB_RCV_ELS64_CX:
799 case CMD_IOCB_RCV_CONT64_CX:
800 case CMD_IOCB_RET_XRI64_CX:
801 type = LPFC_UNSOL_IOCB;
803 case CMD_IOCB_XMIT_MSEQ64_CR:
804 case CMD_IOCB_XMIT_MSEQ64_CX:
805 case CMD_IOCB_RCV_SEQ_LIST64_CX:
806 case CMD_IOCB_RCV_ELS_LIST64_CX:
807 case CMD_IOCB_CLOSE_EXTENDED_CN:
808 case CMD_IOCB_ABORT_EXTENDED_CN:
809 case CMD_IOCB_RET_HBQE64_CN:
810 case CMD_IOCB_FCP_IBIDIR64_CR:
811 case CMD_IOCB_FCP_IBIDIR64_CX:
812 case CMD_IOCB_FCP_ITASKMGT64_CX:
813 case CMD_IOCB_LOGENTRY_CN:
814 case CMD_IOCB_LOGENTRY_ASYNC_CN:
815 printk("%s - Unhandled SLI-3 Command x%x\n",
816 __func__, iocb_cmnd);
817 type = LPFC_UNKNOWN_IOCB;
820 type = LPFC_UNKNOWN_IOCB;
828 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
829 * @phba: Pointer to HBA context object.
831 * This function is called from SLI initialization code
832 * to configure every ring of the HBA's SLI interface. The
833 * caller is not required to hold any lock. This function issues
834 * a config_ring mailbox command for each ring.
835 * This function returns zero if successful else returns a negative
839 lpfc_sli_ring_map(struct lpfc_hba *phba)
841 struct lpfc_sli *psli = &phba->sli;
846 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
850 phba->link_state = LPFC_INIT_MBX_CMDS;
851 for (i = 0; i < psli->num_rings; i++) {
852 lpfc_config_ring(phba, i, pmb);
853 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
854 if (rc != MBX_SUCCESS) {
855 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
856 "0446 Adapter failed to init (%d), "
857 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
859 rc, pmbox->mbxCommand,
860 pmbox->mbxStatus, i);
861 phba->link_state = LPFC_HBA_ERROR;
866 mempool_free(pmb, phba->mbox_mem_pool);
871 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
872 * @phba: Pointer to HBA context object.
873 * @pring: Pointer to driver SLI ring object.
874 * @piocb: Pointer to the driver iocb object.
876 * This function is called with hbalock held. The function adds the
877 * new iocb to txcmplq of the given ring. This function always returns
878 * 0. If this function is called for ELS ring, this function checks if
879 * there is a vport associated with the ELS command. This function also
880 * starts els_tmofunc timer if this is an ELS command.
883 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
884 struct lpfc_iocbq *piocb)
886 list_add_tail(&piocb->list, &pring->txcmplq);
887 piocb->iocb_flag |= LPFC_IO_ON_Q;
888 pring->txcmplq_cnt++;
889 if (pring->txcmplq_cnt > pring->txcmplq_max)
890 pring->txcmplq_max = pring->txcmplq_cnt;
892 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
893 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
894 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
898 mod_timer(&piocb->vport->els_tmofunc,
899 jiffies + HZ * (phba->fc_ratov << 1));
907 * lpfc_sli_ringtx_get - Get first element of the txq
908 * @phba: Pointer to HBA context object.
909 * @pring: Pointer to driver SLI ring object.
911 * This function is called with hbalock held to get next
912 * iocb in txq of the given ring. If there is any iocb in
913 * the txq, the function returns first iocb in the list after
914 * removing the iocb from the list, else it returns NULL.
917 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
919 struct lpfc_iocbq *cmd_iocb;
921 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
922 if (cmd_iocb != NULL)
928 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
929 * @phba: Pointer to HBA context object.
930 * @pring: Pointer to driver SLI ring object.
932 * This function is called with hbalock held and the caller must post the
933 * iocb without releasing the lock. If the caller releases the lock,
934 * iocb slot returned by the function is not guaranteed to be available.
935 * The function returns pointer to the next available iocb slot if there
936 * is available slot in the ring, else it returns NULL.
937 * If the get index of the ring is ahead of the put index, the function
938 * will post an error attention event to the worker thread to take the
939 * HBA to offline state.
942 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
944 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
945 uint32_t max_cmd_idx = pring->numCiocb;
946 if ((pring->next_cmdidx == pring->cmdidx) &&
947 (++pring->next_cmdidx >= max_cmd_idx))
948 pring->next_cmdidx = 0;
950 if (unlikely(pring->local_getidx == pring->next_cmdidx)) {
952 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
954 if (unlikely(pring->local_getidx >= max_cmd_idx)) {
955 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
956 "0315 Ring %d issue: portCmdGet %d "
957 "is bigger than cmd ring %d\n",
959 pring->local_getidx, max_cmd_idx);
961 phba->link_state = LPFC_HBA_ERROR;
963 * All error attention handlers are posted to
966 phba->work_ha |= HA_ERATT;
967 phba->work_hs = HS_FFER3;
969 lpfc_worker_wake_up(phba);
974 if (pring->local_getidx == pring->next_cmdidx)
978 return lpfc_cmd_iocb(phba, pring);
982 * lpfc_sli_next_iotag - Get an iotag for the iocb
983 * @phba: Pointer to HBA context object.
984 * @iocbq: Pointer to driver iocb object.
986 * This function gets an iotag for the iocb. If there is no unused iotag and
987 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
988 * array and assigns a new iotag.
989 * The function returns the allocated iotag if successful, else returns zero.
990 * Zero is not a valid iotag.
991 * The caller is not required to hold any lock.
994 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
996 struct lpfc_iocbq **new_arr;
997 struct lpfc_iocbq **old_arr;
999 struct lpfc_sli *psli = &phba->sli;
1002 spin_lock_irq(&phba->hbalock);
1003 iotag = psli->last_iotag;
1004 if(++iotag < psli->iocbq_lookup_len) {
1005 psli->last_iotag = iotag;
1006 psli->iocbq_lookup[iotag] = iocbq;
1007 spin_unlock_irq(&phba->hbalock);
1008 iocbq->iotag = iotag;
1010 } else if (psli->iocbq_lookup_len < (0xffff
1011 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1012 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1013 spin_unlock_irq(&phba->hbalock);
1014 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
1017 spin_lock_irq(&phba->hbalock);
1018 old_arr = psli->iocbq_lookup;
1019 if (new_len <= psli->iocbq_lookup_len) {
1020 /* highly unprobable case */
1022 iotag = psli->last_iotag;
1023 if(++iotag < psli->iocbq_lookup_len) {
1024 psli->last_iotag = iotag;
1025 psli->iocbq_lookup[iotag] = iocbq;
1026 spin_unlock_irq(&phba->hbalock);
1027 iocbq->iotag = iotag;
1030 spin_unlock_irq(&phba->hbalock);
1033 if (psli->iocbq_lookup)
1034 memcpy(new_arr, old_arr,
1035 ((psli->last_iotag + 1) *
1036 sizeof (struct lpfc_iocbq *)));
1037 psli->iocbq_lookup = new_arr;
1038 psli->iocbq_lookup_len = new_len;
1039 psli->last_iotag = iotag;
1040 psli->iocbq_lookup[iotag] = iocbq;
1041 spin_unlock_irq(&phba->hbalock);
1042 iocbq->iotag = iotag;
1047 spin_unlock_irq(&phba->hbalock);
1049 lpfc_printf_log(phba, KERN_ERR,LOG_SLI,
1050 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1057 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1058 * @phba: Pointer to HBA context object.
1059 * @pring: Pointer to driver SLI ring object.
1060 * @iocb: Pointer to iocb slot in the ring.
1061 * @nextiocb: Pointer to driver iocb object which need to be
1062 * posted to firmware.
1064 * This function is called with hbalock held to post a new iocb to
1065 * the firmware. This function copies the new iocb to ring iocb slot and
1066 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1067 * a completion call back for this iocb else the function will free the
1071 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1072 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1077 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1080 if (pring->ringno == LPFC_ELS_RING) {
1081 lpfc_debugfs_slow_ring_trc(phba,
1082 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1083 *(((uint32_t *) &nextiocb->iocb) + 4),
1084 *(((uint32_t *) &nextiocb->iocb) + 6),
1085 *(((uint32_t *) &nextiocb->iocb) + 7));
1089 * Issue iocb command to adapter
1091 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1093 pring->stats.iocb_cmd++;
1096 * If there is no completion routine to call, we can release the
1097 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1098 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1100 if (nextiocb->iocb_cmpl)
1101 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1103 __lpfc_sli_release_iocbq(phba, nextiocb);
1106 * Let the HBA know what IOCB slot will be the next one the
1107 * driver will put a command into.
1109 pring->cmdidx = pring->next_cmdidx;
1110 writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1114 * lpfc_sli_update_full_ring - Update the chip attention register
1115 * @phba: Pointer to HBA context object.
1116 * @pring: Pointer to driver SLI ring object.
1118 * The caller is not required to hold any lock for calling this function.
1119 * This function updates the chip attention bits for the ring to inform firmware
1120 * that there are pending work to be done for this ring and requests an
1121 * interrupt when there is space available in the ring. This function is
1122 * called when the driver is unable to post more iocbs to the ring due
1123 * to unavailability of space in the ring.
1126 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1128 int ringno = pring->ringno;
1130 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1135 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1136 * The HBA will tell us when an IOCB entry is available.
1138 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1139 readl(phba->CAregaddr); /* flush */
1141 pring->stats.iocb_cmd_full++;
1145 * lpfc_sli_update_ring - Update chip attention register
1146 * @phba: Pointer to HBA context object.
1147 * @pring: Pointer to driver SLI ring object.
1149 * This function updates the chip attention register bit for the
1150 * given ring to inform HBA that there is more work to be done
1151 * in this ring. The caller is not required to hold any lock.
1154 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1156 int ringno = pring->ringno;
1159 * Tell the HBA that there is work to do in this ring.
1161 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1163 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1164 readl(phba->CAregaddr); /* flush */
1169 * lpfc_sli_resume_iocb - Process iocbs in the txq
1170 * @phba: Pointer to HBA context object.
1171 * @pring: Pointer to driver SLI ring object.
1173 * This function is called with hbalock held to post pending iocbs
1174 * in the txq to the firmware. This function is called when driver
1175 * detects space available in the ring.
1178 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1181 struct lpfc_iocbq *nextiocb;
1185 * (a) there is anything on the txq to send
1187 * (c) link attention events can be processed (fcp ring only)
1188 * (d) IOCB processing is not blocked by the outstanding mbox command.
1190 if (pring->txq_cnt &&
1191 lpfc_is_link_up(phba) &&
1192 (pring->ringno != phba->sli.fcp_ring ||
1193 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1195 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1196 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1197 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1200 lpfc_sli_update_ring(phba, pring);
1202 lpfc_sli_update_full_ring(phba, pring);
1209 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1210 * @phba: Pointer to HBA context object.
1211 * @hbqno: HBQ number.
1213 * This function is called with hbalock held to get the next
1214 * available slot for the given HBQ. If there is free slot
1215 * available for the HBQ it will return pointer to the next available
1216 * HBQ entry else it will return NULL.
1218 static struct lpfc_hbq_entry *
1219 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1221 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1223 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1224 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1225 hbqp->next_hbqPutIdx = 0;
1227 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1228 uint32_t raw_index = phba->hbq_get[hbqno];
1229 uint32_t getidx = le32_to_cpu(raw_index);
1231 hbqp->local_hbqGetIdx = getidx;
1233 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1234 lpfc_printf_log(phba, KERN_ERR,
1235 LOG_SLI | LOG_VPORT,
1236 "1802 HBQ %d: local_hbqGetIdx "
1237 "%u is > than hbqp->entry_count %u\n",
1238 hbqno, hbqp->local_hbqGetIdx,
1241 phba->link_state = LPFC_HBA_ERROR;
1245 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1249 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1254 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1255 * @phba: Pointer to HBA context object.
1257 * This function is called with no lock held to free all the
1258 * hbq buffers while uninitializing the SLI interface. It also
1259 * frees the HBQ buffers returned by the firmware but not yet
1260 * processed by the upper layers.
1263 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1265 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1266 struct hbq_dmabuf *hbq_buf;
1267 unsigned long flags;
1271 hbq_count = lpfc_sli_hbq_count();
1272 /* Return all memory used by all HBQs */
1273 spin_lock_irqsave(&phba->hbalock, flags);
1274 for (i = 0; i < hbq_count; ++i) {
1275 list_for_each_entry_safe(dmabuf, next_dmabuf,
1276 &phba->hbqs[i].hbq_buffer_list, list) {
1277 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1278 list_del(&hbq_buf->dbuf.list);
1279 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1281 phba->hbqs[i].buffer_count = 0;
1283 /* Return all HBQ buffer that are in-fly */
1284 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1286 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1287 list_del(&hbq_buf->dbuf.list);
1288 if (hbq_buf->tag == -1) {
1289 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1292 hbqno = hbq_buf->tag >> 16;
1293 if (hbqno >= LPFC_MAX_HBQS)
1294 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1297 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1302 /* Mark the HBQs not in use */
1303 phba->hbq_in_use = 0;
1304 spin_unlock_irqrestore(&phba->hbalock, flags);
1308 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1309 * @phba: Pointer to HBA context object.
1310 * @hbqno: HBQ number.
1311 * @hbq_buf: Pointer to HBQ buffer.
1313 * This function is called with the hbalock held to post a
1314 * hbq buffer to the firmware. If the function finds an empty
1315 * slot in the HBQ, it will post the buffer. The function will return
1316 * pointer to the hbq entry if it successfully post the buffer
1317 * else it will return NULL.
1320 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
1321 struct hbq_dmabuf *hbq_buf)
1323 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1327 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1328 * @phba: Pointer to HBA context object.
1329 * @hbqno: HBQ number.
1330 * @hbq_buf: Pointer to HBQ buffer.
1332 * This function is called with the hbalock held to post a hbq buffer to the
1333 * firmware. If the function finds an empty slot in the HBQ, it will post the
1334 * buffer and place it on the hbq_buffer_list. The function will return zero if
1335 * it successfully post the buffer else it will return an error.
1338 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1339 struct hbq_dmabuf *hbq_buf)
1341 struct lpfc_hbq_entry *hbqe;
1342 dma_addr_t physaddr = hbq_buf->dbuf.phys;
1344 /* Get next HBQ entry slot to use */
1345 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1347 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1349 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1350 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
1351 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
1352 hbqe->bde.tus.f.bdeFlags = 0;
1353 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1354 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1356 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1357 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
1359 readl(phba->hbq_put + hbqno);
1360 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
1367 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1368 * @phba: Pointer to HBA context object.
1369 * @hbqno: HBQ number.
1370 * @hbq_buf: Pointer to HBQ buffer.
1372 * This function is called with the hbalock held to post an RQE to the SLI4
1373 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1374 * the hbq_buffer_list and return zero, otherwise it will return an error.
1377 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1378 struct hbq_dmabuf *hbq_buf)
1381 struct lpfc_rqe hrqe;
1382 struct lpfc_rqe drqe;
1384 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1385 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1386 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1387 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1388 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1393 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1397 /* HBQ for ELS and CT traffic. */
1398 static struct lpfc_hbq_init lpfc_els_hbq = {
1403 .ring_mask = (1 << LPFC_ELS_RING),
1409 /* HBQ for the extra ring if needed */
1410 static struct lpfc_hbq_init lpfc_extra_hbq = {
1415 .ring_mask = (1 << LPFC_EXTRA_RING),
1422 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
1428 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1429 * @phba: Pointer to HBA context object.
1430 * @hbqno: HBQ number.
1431 * @count: Number of HBQ buffers to be posted.
1433 * This function is called with no lock held to post more hbq buffers to the
1434 * given HBQ. The function returns the number of HBQ buffers successfully
1438 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1440 uint32_t i, posted = 0;
1441 unsigned long flags;
1442 struct hbq_dmabuf *hbq_buffer;
1443 LIST_HEAD(hbq_buf_list);
1444 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
1447 if ((phba->hbqs[hbqno].buffer_count + count) >
1448 lpfc_hbq_defs[hbqno]->entry_count)
1449 count = lpfc_hbq_defs[hbqno]->entry_count -
1450 phba->hbqs[hbqno].buffer_count;
1453 /* Allocate HBQ entries */
1454 for (i = 0; i < count; i++) {
1455 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1458 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1460 /* Check whether HBQ is still in use */
1461 spin_lock_irqsave(&phba->hbalock, flags);
1462 if (!phba->hbq_in_use)
1464 while (!list_empty(&hbq_buf_list)) {
1465 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1467 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1469 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
1470 phba->hbqs[hbqno].buffer_count++;
1473 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1475 spin_unlock_irqrestore(&phba->hbalock, flags);
1478 spin_unlock_irqrestore(&phba->hbalock, flags);
1479 while (!list_empty(&hbq_buf_list)) {
1480 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1482 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1488 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1489 * @phba: Pointer to HBA context object.
1492 * This function posts more buffers to the HBQ. This function
1493 * is called with no lock held. The function returns the number of HBQ entries
1494 * successfully allocated.
1497 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
1499 if (phba->sli_rev == LPFC_SLI_REV4)
1502 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1503 lpfc_hbq_defs[qno]->add_count);
1507 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1508 * @phba: Pointer to HBA context object.
1509 * @qno: HBQ queue number.
1511 * This function is called from SLI initialization code path with
1512 * no lock held to post initial HBQ buffers to firmware. The
1513 * function returns the number of HBQ entries successfully allocated.
1516 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
1518 if (phba->sli_rev == LPFC_SLI_REV4)
1519 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1520 lpfc_hbq_defs[qno]->entry_count);
1522 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1523 lpfc_hbq_defs[qno]->init_count);
1527 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1528 * @phba: Pointer to HBA context object.
1529 * @hbqno: HBQ number.
1531 * This function removes the first hbq buffer on an hbq list and returns a
1532 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1534 static struct hbq_dmabuf *
1535 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1537 struct lpfc_dmabuf *d_buf;
1539 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
1542 return container_of(d_buf, struct hbq_dmabuf, dbuf);
1546 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
1547 * @phba: Pointer to HBA context object.
1548 * @tag: Tag of the hbq buffer.
1550 * This function is called with hbalock held. This function searches
1551 * for the hbq buffer associated with the given tag in the hbq buffer
1552 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1555 static struct hbq_dmabuf *
1556 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
1558 struct lpfc_dmabuf *d_buf;
1559 struct hbq_dmabuf *hbq_buf;
1563 if (hbqno >= LPFC_MAX_HBQS)
1566 spin_lock_irq(&phba->hbalock);
1567 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
1568 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
1569 if (hbq_buf->tag == tag) {
1570 spin_unlock_irq(&phba->hbalock);
1574 spin_unlock_irq(&phba->hbalock);
1575 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
1576 "1803 Bad hbq tag. Data: x%x x%x\n",
1577 tag, phba->hbqs[tag >> 16].buffer_count);
1582 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
1583 * @phba: Pointer to HBA context object.
1584 * @hbq_buffer: Pointer to HBQ buffer.
1586 * This function is called with hbalock. This function gives back
1587 * the hbq buffer to firmware. If the HBQ does not have space to
1588 * post the buffer, it will free the buffer.
1591 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
1596 hbqno = hbq_buffer->tag >> 16;
1597 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
1598 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1603 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
1604 * @mbxCommand: mailbox command code.
1606 * This function is called by the mailbox event handler function to verify
1607 * that the completed mailbox command is a legitimate mailbox command. If the
1608 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
1609 * and the mailbox event handler will take the HBA offline.
1612 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
1616 switch (mbxCommand) {
1620 case MBX_WRITE_VPARMS:
1621 case MBX_RUN_BIU_DIAG:
1624 case MBX_CONFIG_LINK:
1625 case MBX_CONFIG_RING:
1626 case MBX_RESET_RING:
1627 case MBX_READ_CONFIG:
1628 case MBX_READ_RCONFIG:
1629 case MBX_READ_SPARM:
1630 case MBX_READ_STATUS:
1634 case MBX_READ_LNK_STAT:
1636 case MBX_UNREG_LOGIN:
1639 case MBX_DUMP_MEMORY:
1640 case MBX_DUMP_CONTEXT:
1643 case MBX_UPDATE_CFG:
1645 case MBX_DEL_LD_ENTRY:
1646 case MBX_RUN_PROGRAM:
1648 case MBX_SET_VARIABLE:
1649 case MBX_UNREG_D_ID:
1650 case MBX_KILL_BOARD:
1651 case MBX_CONFIG_FARP:
1654 case MBX_RUN_BIU_DIAG64:
1655 case MBX_CONFIG_PORT:
1656 case MBX_READ_SPARM64:
1657 case MBX_READ_RPI64:
1658 case MBX_REG_LOGIN64:
1662 case MBX_LOAD_EXP_ROM:
1663 case MBX_ASYNCEVT_ENABLE:
1667 case MBX_PORT_CAPABILITIES:
1668 case MBX_PORT_IOV_CONTROL:
1669 case MBX_SLI4_CONFIG:
1670 case MBX_SLI4_REQ_FTRS:
1672 case MBX_UNREG_FCFI:
1677 case MBX_RESUME_RPI:
1678 case MBX_READ_EVENT_LOG_STATUS:
1679 case MBX_READ_EVENT_LOG:
1690 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
1691 * @phba: Pointer to HBA context object.
1692 * @pmboxq: Pointer to mailbox command.
1694 * This is completion handler function for mailbox commands issued from
1695 * lpfc_sli_issue_mbox_wait function. This function is called by the
1696 * mailbox event handler function with no lock held. This function
1697 * will wake up thread waiting on the wait queue pointed by context1
1701 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
1703 wait_queue_head_t *pdone_q;
1704 unsigned long drvr_flag;
1707 * If pdone_q is empty, the driver thread gave up waiting and
1708 * continued running.
1710 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
1711 spin_lock_irqsave(&phba->hbalock, drvr_flag);
1712 pdone_q = (wait_queue_head_t *) pmboxq->context1;
1714 wake_up_interruptible(pdone_q);
1715 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1721 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
1722 * @phba: Pointer to HBA context object.
1723 * @pmb: Pointer to mailbox object.
1725 * This function is the default mailbox completion handler. It
1726 * frees the memory resources associated with the completed mailbox
1727 * command. If the completed command is a REG_LOGIN mailbox command,
1728 * this function will issue a UREG_LOGIN to re-claim the RPI.
1731 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1733 struct lpfc_dmabuf *mp;
1736 struct lpfc_vport *vport = pmb->vport;
1738 mp = (struct lpfc_dmabuf *) (pmb->context1);
1741 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1745 if ((pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) &&
1746 (phba->sli_rev == LPFC_SLI_REV4))
1747 lpfc_sli4_free_rpi(phba, pmb->u.mb.un.varUnregLogin.rpi);
1750 * If a REG_LOGIN succeeded after node is destroyed or node
1751 * is in re-discovery driver need to cleanup the RPI.
1753 if (!(phba->pport->load_flag & FC_UNLOADING) &&
1754 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
1755 !pmb->u.mb.mbxStatus) {
1756 rpi = pmb->u.mb.un.varWords[0];
1757 vpi = pmb->u.mb.un.varRegLogin.vpi - phba->vpi_base;
1758 lpfc_unreg_login(phba, vpi, rpi, pmb);
1759 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1760 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
1761 if (rc != MBX_NOT_FINISHED)
1765 /* Unreg VPI, if the REG_VPI succeed after VLink failure */
1766 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
1767 !(phba->pport->load_flag & FC_UNLOADING) &&
1768 !pmb->u.mb.mbxStatus) {
1769 lpfc_unreg_vpi(phba, pmb->u.mb.un.varRegVpi.vpi, pmb);
1771 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1772 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
1773 if (rc != MBX_NOT_FINISHED)
1777 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
1778 lpfc_sli4_mbox_cmd_free(phba, pmb);
1780 mempool_free(pmb, phba->mbox_mem_pool);
1784 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
1785 * @phba: Pointer to HBA context object.
1787 * This function is called with no lock held. This function processes all
1788 * the completed mailbox commands and gives it to upper layers. The interrupt
1789 * service routine processes mailbox completion interrupt and adds completed
1790 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
1791 * Worker thread call lpfc_sli_handle_mb_event, which will return the
1792 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
1793 * function returns the mailbox commands to the upper layer by calling the
1794 * completion handler function of each mailbox.
1797 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
1804 phba->sli.slistat.mbox_event++;
1806 /* Get all completed mailboxe buffers into the cmplq */
1807 spin_lock_irq(&phba->hbalock);
1808 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
1809 spin_unlock_irq(&phba->hbalock);
1811 /* Get a Mailbox buffer to setup mailbox commands for callback */
1813 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
1819 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
1821 lpfc_debugfs_disc_trc(pmb->vport,
1822 LPFC_DISC_TRC_MBOX_VPORT,
1823 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
1824 (uint32_t)pmbox->mbxCommand,
1825 pmbox->un.varWords[0],
1826 pmbox->un.varWords[1]);
1829 lpfc_debugfs_disc_trc(phba->pport,
1831 "MBOX cmpl: cmd:x%x mb:x%x x%x",
1832 (uint32_t)pmbox->mbxCommand,
1833 pmbox->un.varWords[0],
1834 pmbox->un.varWords[1]);
1839 * It is a fatal error if unknown mbox command completion.
1841 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
1843 /* Unknown mailbox command compl */
1844 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
1845 "(%d):0323 Unknown Mailbox command "
1847 pmb->vport ? pmb->vport->vpi : 0,
1849 lpfc_sli4_mbox_opcode_get(phba, pmb));
1850 phba->link_state = LPFC_HBA_ERROR;
1851 phba->work_hs = HS_FFER3;
1852 lpfc_handle_eratt(phba);
1856 if (pmbox->mbxStatus) {
1857 phba->sli.slistat.mbox_stat_err++;
1858 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
1859 /* Mbox cmd cmpl error - RETRYing */
1860 lpfc_printf_log(phba, KERN_INFO,
1862 "(%d):0305 Mbox cmd cmpl "
1863 "error - RETRYing Data: x%x "
1864 "(x%x) x%x x%x x%x\n",
1865 pmb->vport ? pmb->vport->vpi :0,
1867 lpfc_sli4_mbox_opcode_get(phba,
1870 pmbox->un.varWords[0],
1871 pmb->vport->port_state);
1872 pmbox->mbxStatus = 0;
1873 pmbox->mbxOwner = OWN_HOST;
1874 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
1875 if (rc != MBX_NOT_FINISHED)
1880 /* Mailbox cmd <cmd> Cmpl <cmpl> */
1881 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
1882 "(%d):0307 Mailbox cmd x%x (x%x) Cmpl x%p "
1883 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
1884 pmb->vport ? pmb->vport->vpi : 0,
1886 lpfc_sli4_mbox_opcode_get(phba, pmb),
1888 *((uint32_t *) pmbox),
1889 pmbox->un.varWords[0],
1890 pmbox->un.varWords[1],
1891 pmbox->un.varWords[2],
1892 pmbox->un.varWords[3],
1893 pmbox->un.varWords[4],
1894 pmbox->un.varWords[5],
1895 pmbox->un.varWords[6],
1896 pmbox->un.varWords[7]);
1899 pmb->mbox_cmpl(phba,pmb);
1905 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
1906 * @phba: Pointer to HBA context object.
1907 * @pring: Pointer to driver SLI ring object.
1910 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
1911 * is set in the tag the buffer is posted for a particular exchange,
1912 * the function will return the buffer without replacing the buffer.
1913 * If the buffer is for unsolicited ELS or CT traffic, this function
1914 * returns the buffer and also posts another buffer to the firmware.
1916 static struct lpfc_dmabuf *
1917 lpfc_sli_get_buff(struct lpfc_hba *phba,
1918 struct lpfc_sli_ring *pring,
1921 struct hbq_dmabuf *hbq_entry;
1923 if (tag & QUE_BUFTAG_BIT)
1924 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
1925 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
1928 return &hbq_entry->dbuf;
1932 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
1933 * @phba: Pointer to HBA context object.
1934 * @pring: Pointer to driver SLI ring object.
1935 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
1936 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
1937 * @fch_type: the type for the first frame of the sequence.
1939 * This function is called with no lock held. This function uses the r_ctl and
1940 * type of the received sequence to find the correct callback function to call
1941 * to process the sequence.
1944 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1945 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
1950 /* unSolicited Responses */
1951 if (pring->prt[0].profile) {
1952 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
1953 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
1957 /* We must search, based on rctl / type
1958 for the right routine */
1959 for (i = 0; i < pring->num_mask; i++) {
1960 if ((pring->prt[i].rctl == fch_r_ctl) &&
1961 (pring->prt[i].type == fch_type)) {
1962 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
1963 (pring->prt[i].lpfc_sli_rcv_unsol_event)
1964 (phba, pring, saveq);
1972 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
1973 * @phba: Pointer to HBA context object.
1974 * @pring: Pointer to driver SLI ring object.
1975 * @saveq: Pointer to the unsolicited iocb.
1977 * This function is called with no lock held by the ring event handler
1978 * when there is an unsolicited iocb posted to the response ring by the
1979 * firmware. This function gets the buffer associated with the iocbs
1980 * and calls the event handler for the ring. This function handles both
1981 * qring buffers and hbq buffers.
1982 * When the function returns 1 the caller can free the iocb object otherwise
1983 * upper layer functions will free the iocb objects.
1986 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1987 struct lpfc_iocbq *saveq)
1991 uint32_t Rctl, Type;
1993 struct lpfc_iocbq *iocbq;
1994 struct lpfc_dmabuf *dmzbuf;
1997 irsp = &(saveq->iocb);
1999 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2000 if (pring->lpfc_sli_rcv_async_status)
2001 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2003 lpfc_printf_log(phba,
2006 "0316 Ring %d handler: unexpected "
2007 "ASYNC_STATUS iocb received evt_code "
2010 irsp->un.asyncstat.evt_code);
2014 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2015 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2016 if (irsp->ulpBdeCount > 0) {
2017 dmzbuf = lpfc_sli_get_buff(phba, pring,
2018 irsp->un.ulpWord[3]);
2019 lpfc_in_buf_free(phba, dmzbuf);
2022 if (irsp->ulpBdeCount > 1) {
2023 dmzbuf = lpfc_sli_get_buff(phba, pring,
2024 irsp->unsli3.sli3Words[3]);
2025 lpfc_in_buf_free(phba, dmzbuf);
2028 if (irsp->ulpBdeCount > 2) {
2029 dmzbuf = lpfc_sli_get_buff(phba, pring,
2030 irsp->unsli3.sli3Words[7]);
2031 lpfc_in_buf_free(phba, dmzbuf);
2037 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2038 if (irsp->ulpBdeCount != 0) {
2039 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2040 irsp->un.ulpWord[3]);
2041 if (!saveq->context2)
2042 lpfc_printf_log(phba,
2045 "0341 Ring %d Cannot find buffer for "
2046 "an unsolicited iocb. tag 0x%x\n",
2048 irsp->un.ulpWord[3]);
2050 if (irsp->ulpBdeCount == 2) {
2051 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2052 irsp->unsli3.sli3Words[7]);
2053 if (!saveq->context3)
2054 lpfc_printf_log(phba,
2057 "0342 Ring %d Cannot find buffer for an"
2058 " unsolicited iocb. tag 0x%x\n",
2060 irsp->unsli3.sli3Words[7]);
2062 list_for_each_entry(iocbq, &saveq->list, list) {
2063 irsp = &(iocbq->iocb);
2064 if (irsp->ulpBdeCount != 0) {
2065 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2066 irsp->un.ulpWord[3]);
2067 if (!iocbq->context2)
2068 lpfc_printf_log(phba,
2071 "0343 Ring %d Cannot find "
2072 "buffer for an unsolicited iocb"
2073 ". tag 0x%x\n", pring->ringno,
2074 irsp->un.ulpWord[3]);
2076 if (irsp->ulpBdeCount == 2) {
2077 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2078 irsp->unsli3.sli3Words[7]);
2079 if (!iocbq->context3)
2080 lpfc_printf_log(phba,
2083 "0344 Ring %d Cannot find "
2084 "buffer for an unsolicited "
2087 irsp->unsli3.sli3Words[7]);
2091 if (irsp->ulpBdeCount != 0 &&
2092 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2093 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2096 /* search continue save q for same XRI */
2097 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2098 if (iocbq->iocb.ulpContext == saveq->iocb.ulpContext) {
2099 list_add_tail(&saveq->list, &iocbq->list);
2105 list_add_tail(&saveq->clist,
2106 &pring->iocb_continue_saveq);
2107 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2108 list_del_init(&iocbq->clist);
2110 irsp = &(saveq->iocb);
2114 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2115 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2116 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2117 Rctl = FC_RCTL_ELS_REQ;
2120 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2121 Rctl = w5p->hcsw.Rctl;
2122 Type = w5p->hcsw.Type;
2124 /* Firmware Workaround */
2125 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2126 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2127 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2128 Rctl = FC_RCTL_ELS_REQ;
2130 w5p->hcsw.Rctl = Rctl;
2131 w5p->hcsw.Type = Type;
2135 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2136 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2137 "0313 Ring %d handler: unexpected Rctl x%x "
2138 "Type x%x received\n",
2139 pring->ringno, Rctl, Type);
2145 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2146 * @phba: Pointer to HBA context object.
2147 * @pring: Pointer to driver SLI ring object.
2148 * @prspiocb: Pointer to response iocb object.
2150 * This function looks up the iocb_lookup table to get the command iocb
2151 * corresponding to the given response iocb using the iotag of the
2152 * response iocb. This function is called with the hbalock held.
2153 * This function returns the command iocb object if it finds the command
2154 * iocb else returns NULL.
2156 static struct lpfc_iocbq *
2157 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2158 struct lpfc_sli_ring *pring,
2159 struct lpfc_iocbq *prspiocb)
2161 struct lpfc_iocbq *cmd_iocb = NULL;
2164 iotag = prspiocb->iocb.ulpIoTag;
2166 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2167 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2168 list_del_init(&cmd_iocb->list);
2169 if (cmd_iocb->iocb_flag & LPFC_IO_ON_Q) {
2170 pring->txcmplq_cnt--;
2171 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_Q;
2176 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2177 "0317 iotag x%x is out off "
2178 "range: max iotag x%x wd0 x%x\n",
2179 iotag, phba->sli.last_iotag,
2180 *(((uint32_t *) &prspiocb->iocb) + 7));
2185 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2186 * @phba: Pointer to HBA context object.
2187 * @pring: Pointer to driver SLI ring object.
2190 * This function looks up the iocb_lookup table to get the command iocb
2191 * corresponding to the given iotag. This function is called with the
2193 * This function returns the command iocb object if it finds the command
2194 * iocb else returns NULL.
2196 static struct lpfc_iocbq *
2197 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2198 struct lpfc_sli_ring *pring, uint16_t iotag)
2200 struct lpfc_iocbq *cmd_iocb;
2202 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2203 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2204 list_del_init(&cmd_iocb->list);
2205 if (cmd_iocb->iocb_flag & LPFC_IO_ON_Q) {
2206 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_Q;
2207 pring->txcmplq_cnt--;
2212 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2213 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2214 iotag, phba->sli.last_iotag);
2219 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2220 * @phba: Pointer to HBA context object.
2221 * @pring: Pointer to driver SLI ring object.
2222 * @saveq: Pointer to the response iocb to be processed.
2224 * This function is called by the ring event handler for non-fcp
2225 * rings when there is a new response iocb in the response ring.
2226 * The caller is not required to hold any locks. This function
2227 * gets the command iocb associated with the response iocb and
2228 * calls the completion handler for the command iocb. If there
2229 * is no completion handler, the function will free the resources
2230 * associated with command iocb. If the response iocb is for
2231 * an already aborted command iocb, the status of the completion
2232 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2233 * This function always returns 1.
2236 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2237 struct lpfc_iocbq *saveq)
2239 struct lpfc_iocbq *cmdiocbp;
2241 unsigned long iflag;
2243 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2244 spin_lock_irqsave(&phba->hbalock, iflag);
2245 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
2246 spin_unlock_irqrestore(&phba->hbalock, iflag);
2249 if (cmdiocbp->iocb_cmpl) {
2251 * If an ELS command failed send an event to mgmt
2254 if (saveq->iocb.ulpStatus &&
2255 (pring->ringno == LPFC_ELS_RING) &&
2256 (cmdiocbp->iocb.ulpCommand ==
2257 CMD_ELS_REQUEST64_CR))
2258 lpfc_send_els_failure_event(phba,
2262 * Post all ELS completions to the worker thread.
2263 * All other are passed to the completion callback.
2265 if (pring->ringno == LPFC_ELS_RING) {
2266 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2267 (cmdiocbp->iocb_flag &
2268 LPFC_DRIVER_ABORTED)) {
2269 spin_lock_irqsave(&phba->hbalock,
2271 cmdiocbp->iocb_flag &=
2272 ~LPFC_DRIVER_ABORTED;
2273 spin_unlock_irqrestore(&phba->hbalock,
2275 saveq->iocb.ulpStatus =
2276 IOSTAT_LOCAL_REJECT;
2277 saveq->iocb.un.ulpWord[4] =
2280 /* Firmware could still be in progress
2281 * of DMAing payload, so don't free data
2282 * buffer till after a hbeat.
2284 spin_lock_irqsave(&phba->hbalock,
2286 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2287 spin_unlock_irqrestore(&phba->hbalock,
2290 if (phba->sli_rev == LPFC_SLI_REV4) {
2291 if (saveq->iocb_flag &
2292 LPFC_EXCHANGE_BUSY) {
2293 /* Set cmdiocb flag for the
2294 * exchange busy so sgl (xri)
2295 * will not be released until
2296 * the abort xri is received
2300 &phba->hbalock, iflag);
2301 cmdiocbp->iocb_flag |=
2303 spin_unlock_irqrestore(
2304 &phba->hbalock, iflag);
2306 if (cmdiocbp->iocb_flag &
2307 LPFC_DRIVER_ABORTED) {
2309 * Clear LPFC_DRIVER_ABORTED
2310 * bit in case it was driver
2314 &phba->hbalock, iflag);
2315 cmdiocbp->iocb_flag &=
2316 ~LPFC_DRIVER_ABORTED;
2317 spin_unlock_irqrestore(
2318 &phba->hbalock, iflag);
2319 cmdiocbp->iocb.ulpStatus =
2320 IOSTAT_LOCAL_REJECT;
2321 cmdiocbp->iocb.un.ulpWord[4] =
2322 IOERR_ABORT_REQUESTED;
2324 * For SLI4, irsiocb contains
2325 * NO_XRI in sli_xritag, it
2326 * shall not affect releasing
2327 * sgl (xri) process.
2329 saveq->iocb.ulpStatus =
2330 IOSTAT_LOCAL_REJECT;
2331 saveq->iocb.un.ulpWord[4] =
2334 &phba->hbalock, iflag);
2336 LPFC_DELAY_MEM_FREE;
2337 spin_unlock_irqrestore(
2338 &phba->hbalock, iflag);
2342 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
2344 lpfc_sli_release_iocbq(phba, cmdiocbp);
2347 * Unknown initiating command based on the response iotag.
2348 * This could be the case on the ELS ring because of
2351 if (pring->ringno != LPFC_ELS_RING) {
2353 * Ring <ringno> handler: unexpected completion IoTag
2356 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2357 "0322 Ring %d handler: "
2358 "unexpected completion IoTag x%x "
2359 "Data: x%x x%x x%x x%x\n",
2361 saveq->iocb.ulpIoTag,
2362 saveq->iocb.ulpStatus,
2363 saveq->iocb.un.ulpWord[4],
2364 saveq->iocb.ulpCommand,
2365 saveq->iocb.ulpContext);
2373 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2374 * @phba: Pointer to HBA context object.
2375 * @pring: Pointer to driver SLI ring object.
2377 * This function is called from the iocb ring event handlers when
2378 * put pointer is ahead of the get pointer for a ring. This function signal
2379 * an error attention condition to the worker thread and the worker
2380 * thread will transition the HBA to offline state.
2383 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2385 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2387 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2388 * rsp ring <portRspMax>
2390 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2391 "0312 Ring %d handler: portRspPut %d "
2392 "is bigger than rsp ring %d\n",
2393 pring->ringno, le32_to_cpu(pgp->rspPutInx),
2396 phba->link_state = LPFC_HBA_ERROR;
2399 * All error attention handlers are posted to
2402 phba->work_ha |= HA_ERATT;
2403 phba->work_hs = HS_FFER3;
2405 lpfc_worker_wake_up(phba);
2411 * lpfc_poll_eratt - Error attention polling timer timeout handler
2412 * @ptr: Pointer to address of HBA context object.
2414 * This function is invoked by the Error Attention polling timer when the
2415 * timer times out. It will check the SLI Error Attention register for
2416 * possible attention events. If so, it will post an Error Attention event
2417 * and wake up worker thread to process it. Otherwise, it will set up the
2418 * Error Attention polling timer for the next poll.
2420 void lpfc_poll_eratt(unsigned long ptr)
2422 struct lpfc_hba *phba;
2425 phba = (struct lpfc_hba *)ptr;
2427 /* Check chip HA register for error event */
2428 eratt = lpfc_sli_check_eratt(phba);
2431 /* Tell the worker thread there is work to do */
2432 lpfc_worker_wake_up(phba);
2434 /* Restart the timer for next eratt poll */
2435 mod_timer(&phba->eratt_poll, jiffies +
2436 HZ * LPFC_ERATT_POLL_INTERVAL);
2442 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2443 * @phba: Pointer to HBA context object.
2444 * @pring: Pointer to driver SLI ring object.
2445 * @mask: Host attention register mask for this ring.
2447 * This function is called from the interrupt context when there is a ring
2448 * event for the fcp ring. The caller does not hold any lock.
2449 * The function processes each response iocb in the response ring until it
2450 * finds an iocb with LE bit set and chains all the iocbs upto the iocb with
2451 * LE bit set. The function will call the completion handler of the command iocb
2452 * if the response iocb indicates a completion for a command iocb or it is
2453 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2454 * function if this is an unsolicited iocb.
2455 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2456 * to check it explicitly.
2459 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2460 struct lpfc_sli_ring *pring, uint32_t mask)
2462 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2463 IOCB_t *irsp = NULL;
2464 IOCB_t *entry = NULL;
2465 struct lpfc_iocbq *cmdiocbq = NULL;
2466 struct lpfc_iocbq rspiocbq;
2468 uint32_t portRspPut, portRspMax;
2470 lpfc_iocb_type type;
2471 unsigned long iflag;
2472 uint32_t rsp_cmpl = 0;
2474 spin_lock_irqsave(&phba->hbalock, iflag);
2475 pring->stats.iocb_event++;
2478 * The next available response entry should never exceed the maximum
2479 * entries. If it does, treat it as an adapter hardware error.
2481 portRspMax = pring->numRiocb;
2482 portRspPut = le32_to_cpu(pgp->rspPutInx);
2483 if (unlikely(portRspPut >= portRspMax)) {
2484 lpfc_sli_rsp_pointers_error(phba, pring);
2485 spin_unlock_irqrestore(&phba->hbalock, iflag);
2488 if (phba->fcp_ring_in_use) {
2489 spin_unlock_irqrestore(&phba->hbalock, iflag);
2492 phba->fcp_ring_in_use = 1;
2495 while (pring->rspidx != portRspPut) {
2497 * Fetch an entry off the ring and copy it into a local data
2498 * structure. The copy involves a byte-swap since the
2499 * network byte order and pci byte orders are different.
2501 entry = lpfc_resp_iocb(phba, pring);
2502 phba->last_completion_time = jiffies;
2504 if (++pring->rspidx >= portRspMax)
2507 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
2508 (uint32_t *) &rspiocbq.iocb,
2509 phba->iocb_rsp_size);
2510 INIT_LIST_HEAD(&(rspiocbq.list));
2511 irsp = &rspiocbq.iocb;
2513 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
2514 pring->stats.iocb_rsp++;
2517 if (unlikely(irsp->ulpStatus)) {
2519 * If resource errors reported from HBA, reduce
2520 * queuedepths of the SCSI device.
2522 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2523 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
2524 spin_unlock_irqrestore(&phba->hbalock, iflag);
2525 phba->lpfc_rampdown_queue_depth(phba);
2526 spin_lock_irqsave(&phba->hbalock, iflag);
2529 /* Rsp ring <ringno> error: IOCB */
2530 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2531 "0336 Rsp Ring %d error: IOCB Data: "
2532 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
2534 irsp->un.ulpWord[0],
2535 irsp->un.ulpWord[1],
2536 irsp->un.ulpWord[2],
2537 irsp->un.ulpWord[3],
2538 irsp->un.ulpWord[4],
2539 irsp->un.ulpWord[5],
2540 *(uint32_t *)&irsp->un1,
2541 *((uint32_t *)&irsp->un1 + 1));
2545 case LPFC_ABORT_IOCB:
2548 * Idle exchange closed via ABTS from port. No iocb
2549 * resources need to be recovered.
2551 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
2552 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2553 "0333 IOCB cmd 0x%x"
2554 " processed. Skipping"
2560 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
2562 if (unlikely(!cmdiocbq))
2564 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
2565 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
2566 if (cmdiocbq->iocb_cmpl) {
2567 spin_unlock_irqrestore(&phba->hbalock, iflag);
2568 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
2570 spin_lock_irqsave(&phba->hbalock, iflag);
2573 case LPFC_UNSOL_IOCB:
2574 spin_unlock_irqrestore(&phba->hbalock, iflag);
2575 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
2576 spin_lock_irqsave(&phba->hbalock, iflag);
2579 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
2580 char adaptermsg[LPFC_MAX_ADPTMSG];
2581 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
2582 memcpy(&adaptermsg[0], (uint8_t *) irsp,
2584 dev_warn(&((phba->pcidev)->dev),
2586 phba->brd_no, adaptermsg);
2588 /* Unknown IOCB command */
2589 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2590 "0334 Unknown IOCB command "
2591 "Data: x%x, x%x x%x x%x x%x\n",
2592 type, irsp->ulpCommand,
2601 * The response IOCB has been processed. Update the ring
2602 * pointer in SLIM. If the port response put pointer has not
2603 * been updated, sync the pgp->rspPutInx and fetch the new port
2604 * response put pointer.
2606 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
2608 if (pring->rspidx == portRspPut)
2609 portRspPut = le32_to_cpu(pgp->rspPutInx);
2612 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
2613 pring->stats.iocb_rsp_full++;
2614 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
2615 writel(status, phba->CAregaddr);
2616 readl(phba->CAregaddr);
2618 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
2619 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
2620 pring->stats.iocb_cmd_empty++;
2622 /* Force update of the local copy of cmdGetInx */
2623 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
2624 lpfc_sli_resume_iocb(phba, pring);
2626 if ((pring->lpfc_sli_cmd_available))
2627 (pring->lpfc_sli_cmd_available) (phba, pring);
2631 phba->fcp_ring_in_use = 0;
2632 spin_unlock_irqrestore(&phba->hbalock, iflag);
2637 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
2638 * @phba: Pointer to HBA context object.
2639 * @pring: Pointer to driver SLI ring object.
2640 * @rspiocbp: Pointer to driver response IOCB object.
2642 * This function is called from the worker thread when there is a slow-path
2643 * response IOCB to process. This function chains all the response iocbs until
2644 * seeing the iocb with the LE bit set. The function will call
2645 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
2646 * completion of a command iocb. The function will call the
2647 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
2648 * The function frees the resources or calls the completion handler if this
2649 * iocb is an abort completion. The function returns NULL when the response
2650 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
2651 * this function shall chain the iocb on to the iocb_continueq and return the
2652 * response iocb passed in.
2654 static struct lpfc_iocbq *
2655 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2656 struct lpfc_iocbq *rspiocbp)
2658 struct lpfc_iocbq *saveq;
2659 struct lpfc_iocbq *cmdiocbp;
2660 struct lpfc_iocbq *next_iocb;
2661 IOCB_t *irsp = NULL;
2662 uint32_t free_saveq;
2663 uint8_t iocb_cmd_type;
2664 lpfc_iocb_type type;
2665 unsigned long iflag;
2668 spin_lock_irqsave(&phba->hbalock, iflag);
2669 /* First add the response iocb to the countinueq list */
2670 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
2671 pring->iocb_continueq_cnt++;
2673 /* Now, determine whetehr the list is completed for processing */
2674 irsp = &rspiocbp->iocb;
2677 * By default, the driver expects to free all resources
2678 * associated with this iocb completion.
2681 saveq = list_get_first(&pring->iocb_continueq,
2682 struct lpfc_iocbq, list);
2683 irsp = &(saveq->iocb);
2684 list_del_init(&pring->iocb_continueq);
2685 pring->iocb_continueq_cnt = 0;
2687 pring->stats.iocb_rsp++;
2690 * If resource errors reported from HBA, reduce
2691 * queuedepths of the SCSI device.
2693 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2694 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
2695 spin_unlock_irqrestore(&phba->hbalock, iflag);
2696 phba->lpfc_rampdown_queue_depth(phba);
2697 spin_lock_irqsave(&phba->hbalock, iflag);
2700 if (irsp->ulpStatus) {
2701 /* Rsp ring <ringno> error: IOCB */
2702 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2703 "0328 Rsp Ring %d error: "
2708 "x%x x%x x%x x%x\n",
2710 irsp->un.ulpWord[0],
2711 irsp->un.ulpWord[1],
2712 irsp->un.ulpWord[2],
2713 irsp->un.ulpWord[3],
2714 irsp->un.ulpWord[4],
2715 irsp->un.ulpWord[5],
2716 *(((uint32_t *) irsp) + 6),
2717 *(((uint32_t *) irsp) + 7),
2718 *(((uint32_t *) irsp) + 8),
2719 *(((uint32_t *) irsp) + 9),
2720 *(((uint32_t *) irsp) + 10),
2721 *(((uint32_t *) irsp) + 11),
2722 *(((uint32_t *) irsp) + 12),
2723 *(((uint32_t *) irsp) + 13),
2724 *(((uint32_t *) irsp) + 14),
2725 *(((uint32_t *) irsp) + 15));
2729 * Fetch the IOCB command type and call the correct completion
2730 * routine. Solicited and Unsolicited IOCBs on the ELS ring
2731 * get freed back to the lpfc_iocb_list by the discovery
2734 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
2735 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
2738 spin_unlock_irqrestore(&phba->hbalock, iflag);
2739 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
2740 spin_lock_irqsave(&phba->hbalock, iflag);
2743 case LPFC_UNSOL_IOCB:
2744 spin_unlock_irqrestore(&phba->hbalock, iflag);
2745 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
2746 spin_lock_irqsave(&phba->hbalock, iflag);
2751 case LPFC_ABORT_IOCB:
2753 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
2754 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
2757 /* Call the specified completion routine */
2758 if (cmdiocbp->iocb_cmpl) {
2759 spin_unlock_irqrestore(&phba->hbalock,
2761 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
2763 spin_lock_irqsave(&phba->hbalock,
2766 __lpfc_sli_release_iocbq(phba,
2771 case LPFC_UNKNOWN_IOCB:
2772 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
2773 char adaptermsg[LPFC_MAX_ADPTMSG];
2774 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
2775 memcpy(&adaptermsg[0], (uint8_t *)irsp,
2777 dev_warn(&((phba->pcidev)->dev),
2779 phba->brd_no, adaptermsg);
2781 /* Unknown IOCB command */
2782 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2783 "0335 Unknown IOCB "
2784 "command Data: x%x "
2795 list_for_each_entry_safe(rspiocbp, next_iocb,
2796 &saveq->list, list) {
2797 list_del(&rspiocbp->list);
2798 __lpfc_sli_release_iocbq(phba, rspiocbp);
2800 __lpfc_sli_release_iocbq(phba, saveq);
2804 spin_unlock_irqrestore(&phba->hbalock, iflag);
2809 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
2810 * @phba: Pointer to HBA context object.
2811 * @pring: Pointer to driver SLI ring object.
2812 * @mask: Host attention register mask for this ring.
2814 * This routine wraps the actual slow_ring event process routine from the
2815 * API jump table function pointer from the lpfc_hba struct.
2818 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
2819 struct lpfc_sli_ring *pring, uint32_t mask)
2821 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
2825 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
2826 * @phba: Pointer to HBA context object.
2827 * @pring: Pointer to driver SLI ring object.
2828 * @mask: Host attention register mask for this ring.
2830 * This function is called from the worker thread when there is a ring event
2831 * for non-fcp rings. The caller does not hold any lock. The function will
2832 * remove each response iocb in the response ring and calls the handle
2833 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
2836 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
2837 struct lpfc_sli_ring *pring, uint32_t mask)
2839 struct lpfc_pgp *pgp;
2841 IOCB_t *irsp = NULL;
2842 struct lpfc_iocbq *rspiocbp = NULL;
2843 uint32_t portRspPut, portRspMax;
2844 unsigned long iflag;
2847 pgp = &phba->port_gp[pring->ringno];
2848 spin_lock_irqsave(&phba->hbalock, iflag);
2849 pring->stats.iocb_event++;
2852 * The next available response entry should never exceed the maximum
2853 * entries. If it does, treat it as an adapter hardware error.
2855 portRspMax = pring->numRiocb;
2856 portRspPut = le32_to_cpu(pgp->rspPutInx);
2857 if (portRspPut >= portRspMax) {
2859 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2860 * rsp ring <portRspMax>
2862 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2863 "0303 Ring %d handler: portRspPut %d "
2864 "is bigger than rsp ring %d\n",
2865 pring->ringno, portRspPut, portRspMax);
2867 phba->link_state = LPFC_HBA_ERROR;
2868 spin_unlock_irqrestore(&phba->hbalock, iflag);
2870 phba->work_hs = HS_FFER3;
2871 lpfc_handle_eratt(phba);
2877 while (pring->rspidx != portRspPut) {
2879 * Build a completion list and call the appropriate handler.
2880 * The process is to get the next available response iocb, get
2881 * a free iocb from the list, copy the response data into the
2882 * free iocb, insert to the continuation list, and update the
2883 * next response index to slim. This process makes response
2884 * iocb's in the ring available to DMA as fast as possible but
2885 * pays a penalty for a copy operation. Since the iocb is
2886 * only 32 bytes, this penalty is considered small relative to
2887 * the PCI reads for register values and a slim write. When
2888 * the ulpLe field is set, the entire Command has been
2891 entry = lpfc_resp_iocb(phba, pring);
2893 phba->last_completion_time = jiffies;
2894 rspiocbp = __lpfc_sli_get_iocbq(phba);
2895 if (rspiocbp == NULL) {
2896 printk(KERN_ERR "%s: out of buffers! Failing "
2897 "completion.\n", __func__);
2901 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
2902 phba->iocb_rsp_size);
2903 irsp = &rspiocbp->iocb;
2905 if (++pring->rspidx >= portRspMax)
2908 if (pring->ringno == LPFC_ELS_RING) {
2909 lpfc_debugfs_slow_ring_trc(phba,
2910 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
2911 *(((uint32_t *) irsp) + 4),
2912 *(((uint32_t *) irsp) + 6),
2913 *(((uint32_t *) irsp) + 7));
2916 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
2918 spin_unlock_irqrestore(&phba->hbalock, iflag);
2919 /* Handle the response IOCB */
2920 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
2921 spin_lock_irqsave(&phba->hbalock, iflag);
2924 * If the port response put pointer has not been updated, sync
2925 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
2926 * response put pointer.
2928 if (pring->rspidx == portRspPut) {
2929 portRspPut = le32_to_cpu(pgp->rspPutInx);
2931 } /* while (pring->rspidx != portRspPut) */
2933 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
2934 /* At least one response entry has been freed */
2935 pring->stats.iocb_rsp_full++;
2936 /* SET RxRE_RSP in Chip Att register */
2937 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
2938 writel(status, phba->CAregaddr);
2939 readl(phba->CAregaddr); /* flush */
2941 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
2942 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
2943 pring->stats.iocb_cmd_empty++;
2945 /* Force update of the local copy of cmdGetInx */
2946 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
2947 lpfc_sli_resume_iocb(phba, pring);
2949 if ((pring->lpfc_sli_cmd_available))
2950 (pring->lpfc_sli_cmd_available) (phba, pring);
2954 spin_unlock_irqrestore(&phba->hbalock, iflag);
2959 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
2960 * @phba: Pointer to HBA context object.
2961 * @pring: Pointer to driver SLI ring object.
2962 * @mask: Host attention register mask for this ring.
2964 * This function is called from the worker thread when there is a pending
2965 * ELS response iocb on the driver internal slow-path response iocb worker
2966 * queue. The caller does not hold any lock. The function will remove each
2967 * response iocb from the response worker queue and calls the handle
2968 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
2971 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
2972 struct lpfc_sli_ring *pring, uint32_t mask)
2974 struct lpfc_iocbq *irspiocbq;
2975 struct hbq_dmabuf *dmabuf;
2976 struct lpfc_cq_event *cq_event;
2977 unsigned long iflag;
2979 spin_lock_irqsave(&phba->hbalock, iflag);
2980 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
2981 spin_unlock_irqrestore(&phba->hbalock, iflag);
2982 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
2983 /* Get the response iocb from the head of work queue */
2984 spin_lock_irqsave(&phba->hbalock, iflag);
2985 list_remove_head(&phba->sli4_hba.sp_queue_event,
2986 cq_event, struct lpfc_cq_event, list);
2987 spin_unlock_irqrestore(&phba->hbalock, iflag);
2989 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
2990 case CQE_CODE_COMPL_WQE:
2991 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
2993 /* Translate ELS WCQE to response IOCBQ */
2994 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
2997 lpfc_sli_sp_handle_rspiocb(phba, pring,
3000 case CQE_CODE_RECEIVE:
3001 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3003 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3012 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3013 * @phba: Pointer to HBA context object.
3014 * @pring: Pointer to driver SLI ring object.
3016 * This function aborts all iocbs in the given ring and frees all the iocb
3017 * objects in txq. This function issues an abort iocb for all the iocb commands
3018 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3019 * the return of this function. The caller is not required to hold any locks.
3022 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3024 LIST_HEAD(completions);
3025 struct lpfc_iocbq *iocb, *next_iocb;
3027 if (pring->ringno == LPFC_ELS_RING) {
3028 lpfc_fabric_abort_hba(phba);
3031 /* Error everything on txq and txcmplq
3034 spin_lock_irq(&phba->hbalock);
3035 list_splice_init(&pring->txq, &completions);
3038 /* Next issue ABTS for everything on the txcmplq */
3039 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3040 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3042 spin_unlock_irq(&phba->hbalock);
3044 /* Cancel all the IOCBs from the completions list */
3045 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3050 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3051 * @phba: Pointer to HBA context object.
3053 * This function flushes all iocbs in the fcp ring and frees all the iocb
3054 * objects in txq and txcmplq. This function will not issue abort iocbs
3055 * for all the iocb commands in txcmplq, they will just be returned with
3056 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3057 * slot has been permanently disabled.
3060 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3064 struct lpfc_sli *psli = &phba->sli;
3065 struct lpfc_sli_ring *pring;
3067 /* Currently, only one fcp ring */
3068 pring = &psli->ring[psli->fcp_ring];
3070 spin_lock_irq(&phba->hbalock);
3071 /* Retrieve everything on txq */
3072 list_splice_init(&pring->txq, &txq);
3075 /* Retrieve everything on the txcmplq */
3076 list_splice_init(&pring->txcmplq, &txcmplq);
3077 pring->txcmplq_cnt = 0;
3078 spin_unlock_irq(&phba->hbalock);
3081 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3084 /* Flush the txcmpq */
3085 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3090 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3091 * @phba: Pointer to HBA context object.
3092 * @mask: Bit mask to be checked.
3094 * This function reads the host status register and compares
3095 * with the provided bit mask to check if HBA completed
3096 * the restart. This function will wait in a loop for the
3097 * HBA to complete restart. If the HBA does not restart within
3098 * 15 iterations, the function will reset the HBA again. The
3099 * function returns 1 when HBA fail to restart otherwise returns
3103 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
3109 /* Read the HBA Host Status Register */
3110 status = readl(phba->HSregaddr);
3113 * Check status register every 100ms for 5 retries, then every
3114 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3115 * every 2.5 sec for 4.
3116 * Break our of the loop if errors occurred during init.
3118 while (((status & mask) != mask) &&
3119 !(status & HS_FFERM) &&
3131 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3132 lpfc_sli_brdrestart(phba);
3134 /* Read the HBA Host Status Register */
3135 status = readl(phba->HSregaddr);
3138 /* Check to see if any errors occurred during init */
3139 if ((status & HS_FFERM) || (i >= 20)) {
3140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3141 "2751 Adapter failed to restart, "
3142 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3144 readl(phba->MBslimaddr + 0xa8),
3145 readl(phba->MBslimaddr + 0xac));
3146 phba->link_state = LPFC_HBA_ERROR;
3154 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3155 * @phba: Pointer to HBA context object.
3156 * @mask: Bit mask to be checked.
3158 * This function checks the host status register to check if HBA is
3159 * ready. This function will wait in a loop for the HBA to be ready
3160 * If the HBA is not ready , the function will will reset the HBA PCI
3161 * function again. The function returns 1 when HBA fail to be ready
3162 * otherwise returns zero.
3165 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3170 /* Read the HBA Host Status Register */
3171 status = lpfc_sli4_post_status_check(phba);
3174 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3175 lpfc_sli_brdrestart(phba);
3176 status = lpfc_sli4_post_status_check(phba);
3179 /* Check to see if any errors occurred during init */
3181 phba->link_state = LPFC_HBA_ERROR;
3184 phba->sli4_hba.intr_enable = 0;
3190 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3191 * @phba: Pointer to HBA context object.
3192 * @mask: Bit mask to be checked.
3194 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3195 * from the API jump table function pointer from the lpfc_hba struct.
3198 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3200 return phba->lpfc_sli_brdready(phba, mask);
3203 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3206 * lpfc_reset_barrier - Make HBA ready for HBA reset
3207 * @phba: Pointer to HBA context object.
3209 * This function is called before resetting an HBA. This
3210 * function requests HBA to quiesce DMAs before a reset.
3212 void lpfc_reset_barrier(struct lpfc_hba *phba)
3214 uint32_t __iomem *resp_buf;
3215 uint32_t __iomem *mbox_buf;
3216 volatile uint32_t mbox;
3221 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3222 if (hdrtype != 0x80 ||
3223 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3224 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3228 * Tell the other part of the chip to suspend temporarily all
3231 resp_buf = phba->MBslimaddr;
3233 /* Disable the error attention */
3234 hc_copy = readl(phba->HCregaddr);
3235 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3236 readl(phba->HCregaddr); /* flush */
3237 phba->link_flag |= LS_IGNORE_ERATT;
3239 if (readl(phba->HAregaddr) & HA_ERATT) {
3240 /* Clear Chip error bit */
3241 writel(HA_ERATT, phba->HAregaddr);
3242 phba->pport->stopped = 1;
3246 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3247 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3249 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
3250 mbox_buf = phba->MBslimaddr;
3251 writel(mbox, mbox_buf);
3254 readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++)
3257 if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) {
3258 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
3259 phba->pport->stopped)
3265 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3266 for (i = 0; readl(resp_buf) != mbox && i < 500; i++)
3271 while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500)
3274 if (readl(phba->HAregaddr) & HA_ERATT) {
3275 writel(HA_ERATT, phba->HAregaddr);
3276 phba->pport->stopped = 1;
3280 phba->link_flag &= ~LS_IGNORE_ERATT;
3281 writel(hc_copy, phba->HCregaddr);
3282 readl(phba->HCregaddr); /* flush */
3286 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3287 * @phba: Pointer to HBA context object.
3289 * This function issues a kill_board mailbox command and waits for
3290 * the error attention interrupt. This function is called for stopping
3291 * the firmware processing. The caller is not required to hold any
3292 * locks. This function calls lpfc_hba_down_post function to free
3293 * any pending commands after the kill. The function will return 1 when it
3294 * fails to kill the board else will return 0.
3297 lpfc_sli_brdkill(struct lpfc_hba *phba)
3299 struct lpfc_sli *psli;
3309 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3310 "0329 Kill HBA Data: x%x x%x\n",
3311 phba->pport->port_state, psli->sli_flag);
3313 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3317 /* Disable the error attention */
3318 spin_lock_irq(&phba->hbalock);
3319 status = readl(phba->HCregaddr);
3320 status &= ~HC_ERINT_ENA;
3321 writel(status, phba->HCregaddr);
3322 readl(phba->HCregaddr); /* flush */
3323 phba->link_flag |= LS_IGNORE_ERATT;
3324 spin_unlock_irq(&phba->hbalock);
3326 lpfc_kill_board(phba, pmb);
3327 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3328 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3330 if (retval != MBX_SUCCESS) {
3331 if (retval != MBX_BUSY)
3332 mempool_free(pmb, phba->mbox_mem_pool);
3333 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3334 "2752 KILL_BOARD command failed retval %d\n",
3336 spin_lock_irq(&phba->hbalock);
3337 phba->link_flag &= ~LS_IGNORE_ERATT;
3338 spin_unlock_irq(&phba->hbalock);
3342 spin_lock_irq(&phba->hbalock);
3343 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3344 spin_unlock_irq(&phba->hbalock);
3346 mempool_free(pmb, phba->mbox_mem_pool);
3348 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3349 * attention every 100ms for 3 seconds. If we don't get ERATT after
3350 * 3 seconds we still set HBA_ERROR state because the status of the
3351 * board is now undefined.
3353 ha_copy = readl(phba->HAregaddr);
3355 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3357 ha_copy = readl(phba->HAregaddr);
3360 del_timer_sync(&psli->mbox_tmo);
3361 if (ha_copy & HA_ERATT) {
3362 writel(HA_ERATT, phba->HAregaddr);
3363 phba->pport->stopped = 1;
3365 spin_lock_irq(&phba->hbalock);
3366 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
3367 psli->mbox_active = NULL;
3368 phba->link_flag &= ~LS_IGNORE_ERATT;
3369 spin_unlock_irq(&phba->hbalock);
3371 lpfc_hba_down_post(phba);
3372 phba->link_state = LPFC_HBA_ERROR;
3374 return ha_copy & HA_ERATT ? 0 : 1;
3378 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3379 * @phba: Pointer to HBA context object.
3381 * This function resets the HBA by writing HC_INITFF to the control
3382 * register. After the HBA resets, this function resets all the iocb ring
3383 * indices. This function disables PCI layer parity checking during
3385 * This function returns 0 always.
3386 * The caller is not required to hold any locks.
3389 lpfc_sli_brdreset(struct lpfc_hba *phba)
3391 struct lpfc_sli *psli;
3392 struct lpfc_sli_ring *pring;
3399 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3400 "0325 Reset HBA Data: x%x x%x\n",
3401 phba->pport->port_state, psli->sli_flag);
3403 /* perform board reset */
3404 phba->fc_eventTag = 0;
3405 phba->link_events = 0;
3406 phba->pport->fc_myDID = 0;
3407 phba->pport->fc_prevDID = 0;
3409 /* Turn off parity checking and serr during the physical reset */
3410 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3411 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3413 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3415 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
3417 /* Now toggle INITFF bit in the Host Control Register */
3418 writel(HC_INITFF, phba->HCregaddr);
3420 readl(phba->HCregaddr); /* flush */
3421 writel(0, phba->HCregaddr);
3422 readl(phba->HCregaddr); /* flush */
3424 /* Restore PCI cmd register */
3425 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
3427 /* Initialize relevant SLI info */
3428 for (i = 0; i < psli->num_rings; i++) {
3429 pring = &psli->ring[i];
3432 pring->next_cmdidx = 0;
3433 pring->local_getidx = 0;
3435 pring->missbufcnt = 0;
3438 phba->link_state = LPFC_WARM_START;
3443 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3444 * @phba: Pointer to HBA context object.
3446 * This function resets a SLI4 HBA. This function disables PCI layer parity
3447 * checking during resets the device. The caller is not required to hold
3450 * This function returns 0 always.
3453 lpfc_sli4_brdreset(struct lpfc_hba *phba)
3455 struct lpfc_sli *psli = &phba->sli;
3460 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3461 "0295 Reset HBA Data: x%x x%x\n",
3462 phba->pport->port_state, psli->sli_flag);
3464 /* perform board reset */
3465 phba->fc_eventTag = 0;
3466 phba->link_events = 0;
3467 phba->pport->fc_myDID = 0;
3468 phba->pport->fc_prevDID = 0;
3470 /* Turn off parity checking and serr during the physical reset */
3471 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3472 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3474 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3476 spin_lock_irq(&phba->hbalock);
3477 psli->sli_flag &= ~(LPFC_PROCESS_LA);
3478 phba->fcf.fcf_flag = 0;
3479 /* Clean up the child queue list for the CQs */
3480 list_del_init(&phba->sli4_hba.mbx_wq->list);
3481 list_del_init(&phba->sli4_hba.els_wq->list);
3482 list_del_init(&phba->sli4_hba.hdr_rq->list);
3483 list_del_init(&phba->sli4_hba.dat_rq->list);
3484 list_del_init(&phba->sli4_hba.mbx_cq->list);
3485 list_del_init(&phba->sli4_hba.els_cq->list);
3486 for (qindx = 0; qindx < phba->cfg_fcp_wq_count; qindx++)
3487 list_del_init(&phba->sli4_hba.fcp_wq[qindx]->list);
3488 for (qindx = 0; qindx < phba->cfg_fcp_eq_count; qindx++)
3489 list_del_init(&phba->sli4_hba.fcp_cq[qindx]->list);
3490 spin_unlock_irq(&phba->hbalock);
3492 /* Now physically reset the device */
3493 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3494 "0389 Performing PCI function reset!\n");
3495 /* Perform FCoE PCI function reset */
3496 lpfc_pci_function_reset(phba);
3502 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
3503 * @phba: Pointer to HBA context object.
3505 * This function is called in the SLI initialization code path to
3506 * restart the HBA. The caller is not required to hold any lock.
3507 * This function writes MBX_RESTART mailbox command to the SLIM and
3508 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
3509 * function to free any pending commands. The function enables
3510 * POST only during the first initialization. The function returns zero.
3511 * The function does not guarantee completion of MBX_RESTART mailbox
3512 * command before the return of this function.
3515 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
3518 struct lpfc_sli *psli;
3519 volatile uint32_t word0;
3520 void __iomem *to_slim;
3521 uint32_t hba_aer_enabled;
3523 spin_lock_irq(&phba->hbalock);
3525 /* Take PCIe device Advanced Error Reporting (AER) state */
3526 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
3531 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3532 "0337 Restart HBA Data: x%x x%x\n",
3533 phba->pport->port_state, psli->sli_flag);
3536 mb = (MAILBOX_t *) &word0;
3537 mb->mbxCommand = MBX_RESTART;
3540 lpfc_reset_barrier(phba);
3542 to_slim = phba->MBslimaddr;
3543 writel(*(uint32_t *) mb, to_slim);
3544 readl(to_slim); /* flush */
3546 /* Only skip post after fc_ffinit is completed */
3547 if (phba->pport->port_state)
3548 word0 = 1; /* This is really setting up word1 */
3550 word0 = 0; /* This is really setting up word1 */
3551 to_slim = phba->MBslimaddr + sizeof (uint32_t);
3552 writel(*(uint32_t *) mb, to_slim);
3553 readl(to_slim); /* flush */
3555 lpfc_sli_brdreset(phba);
3556 phba->pport->stopped = 0;
3557 phba->link_state = LPFC_INIT_START;
3559 spin_unlock_irq(&phba->hbalock);
3561 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
3562 psli->stats_start = get_seconds();
3564 /* Give the INITFF and Post time to settle. */
3567 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3568 if (hba_aer_enabled)
3569 pci_disable_pcie_error_reporting(phba->pcidev);
3571 lpfc_hba_down_post(phba);
3577 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
3578 * @phba: Pointer to HBA context object.
3580 * This function is called in the SLI initialization code path to restart
3581 * a SLI4 HBA. The caller is not required to hold any lock.
3582 * At the end of the function, it calls lpfc_hba_down_post function to
3583 * free any pending commands.
3586 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
3588 struct lpfc_sli *psli = &phba->sli;
3589 uint32_t hba_aer_enabled;
3592 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3593 "0296 Restart HBA Data: x%x x%x\n",
3594 phba->pport->port_state, psli->sli_flag);
3596 /* Take PCIe device Advanced Error Reporting (AER) state */
3597 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
3599 lpfc_sli4_brdreset(phba);
3601 spin_lock_irq(&phba->hbalock);
3602 phba->pport->stopped = 0;
3603 phba->link_state = LPFC_INIT_START;
3605 spin_unlock_irq(&phba->hbalock);
3607 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
3608 psli->stats_start = get_seconds();
3610 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3611 if (hba_aer_enabled)
3612 pci_disable_pcie_error_reporting(phba->pcidev);
3614 lpfc_hba_down_post(phba);
3620 * lpfc_sli_brdrestart - Wrapper func for restarting hba
3621 * @phba: Pointer to HBA context object.
3623 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
3624 * API jump table function pointer from the lpfc_hba struct.
3627 lpfc_sli_brdrestart(struct lpfc_hba *phba)
3629 return phba->lpfc_sli_brdrestart(phba);
3633 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
3634 * @phba: Pointer to HBA context object.
3636 * This function is called after a HBA restart to wait for successful
3637 * restart of the HBA. Successful restart of the HBA is indicated by
3638 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
3639 * iteration, the function will restart the HBA again. The function returns
3640 * zero if HBA successfully restarted else returns negative error code.
3643 lpfc_sli_chipset_init(struct lpfc_hba *phba)
3645 uint32_t status, i = 0;
3647 /* Read the HBA Host Status Register */
3648 status = readl(phba->HSregaddr);
3650 /* Check status register to see what current state is */
3652 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
3654 /* Check every 100ms for 5 retries, then every 500ms for 5, then
3655 * every 2.5 sec for 5, then reset board and every 2.5 sec for
3659 /* Adapter failed to init, timeout, status reg
3661 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3662 "0436 Adapter failed to init, "
3663 "timeout, status reg x%x, "
3664 "FW Data: A8 x%x AC x%x\n", status,
3665 readl(phba->MBslimaddr + 0xa8),
3666 readl(phba->MBslimaddr + 0xac));
3667 phba->link_state = LPFC_HBA_ERROR;
3671 /* Check to see if any errors occurred during init */
3672 if (status & HS_FFERM) {
3673 /* ERROR: During chipset initialization */
3674 /* Adapter failed to init, chipset, status reg
3676 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3677 "0437 Adapter failed to init, "
3678 "chipset, status reg x%x, "
3679 "FW Data: A8 x%x AC x%x\n", status,
3680 readl(phba->MBslimaddr + 0xa8),
3681 readl(phba->MBslimaddr + 0xac));
3682 phba->link_state = LPFC_HBA_ERROR;
3688 } else if (i <= 10) {
3696 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3697 lpfc_sli_brdrestart(phba);
3699 /* Read the HBA Host Status Register */
3700 status = readl(phba->HSregaddr);
3703 /* Check to see if any errors occurred during init */
3704 if (status & HS_FFERM) {
3705 /* ERROR: During chipset initialization */
3706 /* Adapter failed to init, chipset, status reg <status> */
3707 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3708 "0438 Adapter failed to init, chipset, "
3710 "FW Data: A8 x%x AC x%x\n", status,
3711 readl(phba->MBslimaddr + 0xa8),
3712 readl(phba->MBslimaddr + 0xac));
3713 phba->link_state = LPFC_HBA_ERROR;
3717 /* Clear all interrupt enable conditions */
3718 writel(0, phba->HCregaddr);
3719 readl(phba->HCregaddr); /* flush */
3721 /* setup host attn register */
3722 writel(0xffffffff, phba->HAregaddr);
3723 readl(phba->HAregaddr); /* flush */
3728 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
3730 * This function calculates and returns the number of HBQs required to be
3734 lpfc_sli_hbq_count(void)
3736 return ARRAY_SIZE(lpfc_hbq_defs);
3740 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
3742 * This function adds the number of hbq entries in every HBQ to get
3743 * the total number of hbq entries required for the HBA and returns
3747 lpfc_sli_hbq_entry_count(void)
3749 int hbq_count = lpfc_sli_hbq_count();
3753 for (i = 0; i < hbq_count; ++i)
3754 count += lpfc_hbq_defs[i]->entry_count;
3759 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
3761 * This function calculates amount of memory required for all hbq entries
3762 * to be configured and returns the total memory required.
3765 lpfc_sli_hbq_size(void)
3767 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
3771 * lpfc_sli_hbq_setup - configure and initialize HBQs
3772 * @phba: Pointer to HBA context object.
3774 * This function is called during the SLI initialization to configure
3775 * all the HBQs and post buffers to the HBQ. The caller is not
3776 * required to hold any locks. This function will return zero if successful
3777 * else it will return negative error code.
3780 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
3782 int hbq_count = lpfc_sli_hbq_count();
3786 uint32_t hbq_entry_index;
3788 /* Get a Mailbox buffer to setup mailbox
3789 * commands for HBA initialization
3791 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3798 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
3799 phba->link_state = LPFC_INIT_MBX_CMDS;
3800 phba->hbq_in_use = 1;
3802 hbq_entry_index = 0;
3803 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
3804 phba->hbqs[hbqno].next_hbqPutIdx = 0;
3805 phba->hbqs[hbqno].hbqPutIdx = 0;
3806 phba->hbqs[hbqno].local_hbqGetIdx = 0;
3807 phba->hbqs[hbqno].entry_count =
3808 lpfc_hbq_defs[hbqno]->entry_count;
3809 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
3810 hbq_entry_index, pmb);
3811 hbq_entry_index += phba->hbqs[hbqno].entry_count;
3813 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
3814 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
3815 mbxStatus <status>, ring <num> */
3817 lpfc_printf_log(phba, KERN_ERR,
3818 LOG_SLI | LOG_VPORT,
3819 "1805 Adapter failed to init. "
3820 "Data: x%x x%x x%x\n",
3822 pmbox->mbxStatus, hbqno);
3824 phba->link_state = LPFC_HBA_ERROR;
3825 mempool_free(pmb, phba->mbox_mem_pool);
3829 phba->hbq_count = hbq_count;
3831 mempool_free(pmb, phba->mbox_mem_pool);
3833 /* Initially populate or replenish the HBQs */
3834 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
3835 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
3840 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
3841 * @phba: Pointer to HBA context object.
3843 * This function is called during the SLI initialization to configure
3844 * all the HBQs and post buffers to the HBQ. The caller is not
3845 * required to hold any locks. This function will return zero if successful
3846 * else it will return negative error code.
3849 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
3851 phba->hbq_in_use = 1;
3852 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
3853 phba->hbq_count = 1;
3854 /* Initially populate or replenish the HBQs */
3855 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
3860 * lpfc_sli_config_port - Issue config port mailbox command
3861 * @phba: Pointer to HBA context object.
3862 * @sli_mode: sli mode - 2/3
3864 * This function is called by the sli intialization code path
3865 * to issue config_port mailbox command. This function restarts the
3866 * HBA firmware and issues a config_port mailbox command to configure
3867 * the SLI interface in the sli mode specified by sli_mode
3868 * variable. The caller is not required to hold any locks.
3869 * The function returns 0 if successful, else returns negative error
3873 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
3876 uint32_t resetcount = 0, rc = 0, done = 0;
3878 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3880 phba->link_state = LPFC_HBA_ERROR;
3884 phba->sli_rev = sli_mode;
3885 while (resetcount < 2 && !done) {
3886 spin_lock_irq(&phba->hbalock);
3887 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
3888 spin_unlock_irq(&phba->hbalock);
3889 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3890 lpfc_sli_brdrestart(phba);
3891 rc = lpfc_sli_chipset_init(phba);
3895 spin_lock_irq(&phba->hbalock);
3896 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
3897 spin_unlock_irq(&phba->hbalock);
3900 /* Call pre CONFIG_PORT mailbox command initialization. A
3901 * value of 0 means the call was successful. Any other
3902 * nonzero value is a failure, but if ERESTART is returned,
3903 * the driver may reset the HBA and try again.
3905 rc = lpfc_config_port_prep(phba);
3906 if (rc == -ERESTART) {
3907 phba->link_state = LPFC_LINK_UNKNOWN;
3911 phba->link_state = LPFC_INIT_MBX_CMDS;
3912 lpfc_config_port(phba, pmb);
3913 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
3914 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
3915 LPFC_SLI3_HBQ_ENABLED |
3916 LPFC_SLI3_CRP_ENABLED |
3917 LPFC_SLI3_BG_ENABLED);
3918 if (rc != MBX_SUCCESS) {
3919 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3920 "0442 Adapter failed to init, mbxCmd x%x "
3921 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
3922 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
3923 spin_lock_irq(&phba->hbalock);
3924 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
3925 spin_unlock_irq(&phba->hbalock);
3928 /* Allow asynchronous mailbox command to go through */
3929 spin_lock_irq(&phba->hbalock);
3930 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
3931 spin_unlock_irq(&phba->hbalock);
3937 goto do_prep_failed;
3939 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
3940 if (!pmb->u.mb.un.varCfgPort.cMA) {
3942 goto do_prep_failed;
3944 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
3945 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
3946 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
3947 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
3948 phba->max_vpi : phba->max_vports;
3952 if (pmb->u.mb.un.varCfgPort.gdss)
3953 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
3954 if (pmb->u.mb.un.varCfgPort.gerbm)
3955 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
3956 if (pmb->u.mb.un.varCfgPort.gcrp)
3957 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
3959 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
3960 phba->port_gp = phba->mbox->us.s3_pgp.port;
3962 if (phba->cfg_enable_bg) {
3963 if (pmb->u.mb.un.varCfgPort.gbg)
3964 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
3966 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3967 "0443 Adapter did not grant "
3971 phba->hbq_get = NULL;
3972 phba->port_gp = phba->mbox->us.s2.port;
3976 mempool_free(pmb, phba->mbox_mem_pool);
3982 * lpfc_sli_hba_setup - SLI intialization function
3983 * @phba: Pointer to HBA context object.
3985 * This function is the main SLI intialization function. This function
3986 * is called by the HBA intialization code, HBA reset code and HBA
3987 * error attention handler code. Caller is not required to hold any
3988 * locks. This function issues config_port mailbox command to configure
3989 * the SLI, setup iocb rings and HBQ rings. In the end the function
3990 * calls the config_port_post function to issue init_link mailbox
3991 * command and to start the discovery. The function will return zero
3992 * if successful, else it will return negative error code.
3995 lpfc_sli_hba_setup(struct lpfc_hba *phba)
4000 switch (lpfc_sli_mode) {
4002 if (phba->cfg_enable_npiv) {
4003 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4004 "1824 NPIV enabled: Override lpfc_sli_mode "
4005 "parameter (%d) to auto (0).\n",
4015 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4016 "1819 Unrecognized lpfc_sli_mode "
4017 "parameter: %d.\n", lpfc_sli_mode);
4022 rc = lpfc_sli_config_port(phba, mode);
4024 if (rc && lpfc_sli_mode == 3)
4025 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4026 "1820 Unable to select SLI-3. "
4027 "Not supported by adapter.\n");
4028 if (rc && mode != 2)
4029 rc = lpfc_sli_config_port(phba, 2);
4031 goto lpfc_sli_hba_setup_error;
4033 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4034 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4035 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4037 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4038 "2709 This device supports "
4039 "Advanced Error Reporting (AER)\n");
4040 spin_lock_irq(&phba->hbalock);
4041 phba->hba_flag |= HBA_AER_ENABLED;
4042 spin_unlock_irq(&phba->hbalock);
4044 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4045 "2708 This device does not support "
4046 "Advanced Error Reporting (AER)\n");
4047 phba->cfg_aer_support = 0;
4051 if (phba->sli_rev == 3) {
4052 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4053 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
4055 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4056 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
4057 phba->sli3_options = 0;
4060 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4061 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4062 phba->sli_rev, phba->max_vpi);
4063 rc = lpfc_sli_ring_map(phba);
4066 goto lpfc_sli_hba_setup_error;
4069 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4070 rc = lpfc_sli_hbq_setup(phba);
4072 goto lpfc_sli_hba_setup_error;
4074 spin_lock_irq(&phba->hbalock);
4075 phba->sli.sli_flag |= LPFC_PROCESS_LA;
4076 spin_unlock_irq(&phba->hbalock);
4078 rc = lpfc_config_port_post(phba);
4080 goto lpfc_sli_hba_setup_error;
4084 lpfc_sli_hba_setup_error:
4085 phba->link_state = LPFC_HBA_ERROR;
4086 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4087 "0445 Firmware initialization failed\n");
4092 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4093 * @phba: Pointer to HBA context object.
4094 * @mboxq: mailbox pointer.
4095 * This function issue a dump mailbox command to read config region
4096 * 23 and parse the records in the region and populate driver
4100 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba,
4101 LPFC_MBOXQ_t *mboxq)
4103 struct lpfc_dmabuf *mp;
4104 struct lpfc_mqe *mqe;
4105 uint32_t data_length;
4108 /* Program the default value of vlan_id and fc_map */
4109 phba->valid_vlan = 0;
4110 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4111 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4112 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4114 mqe = &mboxq->u.mqe;
4115 if (lpfc_dump_fcoe_param(phba, mboxq))
4118 mp = (struct lpfc_dmabuf *) mboxq->context1;
4119 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4121 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4122 "(%d):2571 Mailbox cmd x%x Status x%x "
4123 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4124 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4125 "CQ: x%x x%x x%x x%x\n",
4126 mboxq->vport ? mboxq->vport->vpi : 0,
4127 bf_get(lpfc_mqe_command, mqe),
4128 bf_get(lpfc_mqe_status, mqe),
4129 mqe->un.mb_words[0], mqe->un.mb_words[1],
4130 mqe->un.mb_words[2], mqe->un.mb_words[3],
4131 mqe->un.mb_words[4], mqe->un.mb_words[5],
4132 mqe->un.mb_words[6], mqe->un.mb_words[7],
4133 mqe->un.mb_words[8], mqe->un.mb_words[9],
4134 mqe->un.mb_words[10], mqe->un.mb_words[11],
4135 mqe->un.mb_words[12], mqe->un.mb_words[13],
4136 mqe->un.mb_words[14], mqe->un.mb_words[15],
4137 mqe->un.mb_words[16], mqe->un.mb_words[50],
4139 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4140 mboxq->mcqe.trailer);
4143 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4147 data_length = mqe->un.mb_words[5];
4148 if (data_length > DMP_RGN23_SIZE) {
4149 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4154 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4155 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4161 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4162 * @phba: pointer to lpfc hba data structure.
4163 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4164 * @vpd: pointer to the memory to hold resulting port vpd data.
4165 * @vpd_size: On input, the number of bytes allocated to @vpd.
4166 * On output, the number of data bytes in @vpd.
4168 * This routine executes a READ_REV SLI4 mailbox command. In
4169 * addition, this routine gets the port vpd data.
4173 * ENOMEM - could not allocated memory.
4176 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4177 uint8_t *vpd, uint32_t *vpd_size)
4181 struct lpfc_dmabuf *dmabuf;
4182 struct lpfc_mqe *mqe;
4184 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4189 * Get a DMA buffer for the vpd data resulting from the READ_REV
4192 dma_size = *vpd_size;
4193 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4197 if (!dmabuf->virt) {
4201 memset(dmabuf->virt, 0, dma_size);
4204 * The SLI4 implementation of READ_REV conflicts at word1,
4205 * bits 31:16 and SLI4 adds vpd functionality not present
4206 * in SLI3. This code corrects the conflicts.
4208 lpfc_read_rev(phba, mboxq);
4209 mqe = &mboxq->u.mqe;
4210 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4211 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4212 mqe->un.read_rev.word1 &= 0x0000FFFF;
4213 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4214 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4216 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4218 dma_free_coherent(&phba->pcidev->dev, dma_size,
4219 dmabuf->virt, dmabuf->phys);
4225 * The available vpd length cannot be bigger than the
4226 * DMA buffer passed to the port. Catch the less than
4227 * case and update the caller's size.
4229 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4230 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4232 memcpy(vpd, dmabuf->virt, *vpd_size);
4234 dma_free_coherent(&phba->pcidev->dev, dma_size,
4235 dmabuf->virt, dmabuf->phys);
4241 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4242 * @phba: pointer to lpfc hba data structure.
4244 * This routine is called to explicitly arm the SLI4 device's completion and
4248 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
4252 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
4253 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
4254 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
4255 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
4257 lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM);
4258 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
4259 lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx],
4264 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
4265 * @phba: Pointer to HBA context object.
4267 * This function is the main SLI4 device intialization PCI function. This
4268 * function is called by the HBA intialization code, HBA reset code and
4269 * HBA error attention handler code. Caller is not required to hold any
4273 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
4276 LPFC_MBOXQ_t *mboxq;
4277 struct lpfc_mqe *mqe;
4280 uint32_t ftr_rsp = 0;
4281 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
4282 struct lpfc_vport *vport = phba->pport;
4283 struct lpfc_dmabuf *mp;
4285 /* Perform a PCI function reset to start from clean */
4286 rc = lpfc_pci_function_reset(phba);
4290 /* Check the HBA Host Status Register for readyness */
4291 rc = lpfc_sli4_post_status_check(phba);
4295 spin_lock_irq(&phba->hbalock);
4296 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
4297 spin_unlock_irq(&phba->hbalock);
4301 * Allocate a single mailbox container for initializing the
4304 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4309 * Continue initialization with default values even if driver failed
4310 * to read FCoE param config regions
4312 if (lpfc_sli4_read_fcoe_params(phba, mboxq))
4313 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
4314 "2570 Failed to read FCoE parameters\n");
4316 /* Issue READ_REV to collect vpd and FW information. */
4317 vpd_size = SLI4_PAGE_SIZE;
4318 vpd = kzalloc(vpd_size, GFP_KERNEL);
4324 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
4328 mqe = &mboxq->u.mqe;
4329 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
4330 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
4331 phba->hba_flag |= HBA_FCOE_SUPPORT;
4333 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
4335 phba->hba_flag |= HBA_FIP_SUPPORT;
4337 phba->hba_flag &= ~HBA_FIP_SUPPORT;
4339 if (phba->sli_rev != LPFC_SLI_REV4 ||
4340 !(phba->hba_flag & HBA_FCOE_SUPPORT)) {
4341 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4342 "0376 READ_REV Error. SLI Level %d "
4343 "FCoE enabled %d\n",
4344 phba->sli_rev, phba->hba_flag & HBA_FCOE_SUPPORT);
4349 * Evaluate the read rev and vpd data. Populate the driver
4350 * state with the results. If this routine fails, the failure
4351 * is not fatal as the driver will use generic values.
4353 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
4354 if (unlikely(!rc)) {
4355 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4356 "0377 Error %d parsing vpd. "
4357 "Using defaults.\n", rc);
4361 /* Save information as VPD data */
4362 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
4363 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
4364 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
4365 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
4367 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
4369 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
4371 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
4373 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
4374 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
4375 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
4376 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
4377 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
4378 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
4379 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4380 "(%d):0380 READ_REV Status x%x "
4381 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
4382 mboxq->vport ? mboxq->vport->vpi : 0,
4383 bf_get(lpfc_mqe_status, mqe),
4384 phba->vpd.rev.opFwName,
4385 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
4386 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
4389 * Discover the port's supported feature set and match it against the
4392 lpfc_request_features(phba, mboxq);
4393 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4400 * The port must support FCP initiator mode as this is the
4401 * only mode running in the host.
4403 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
4404 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4405 "0378 No support for fcpi mode.\n");
4410 * If the port cannot support the host's requested features
4411 * then turn off the global config parameters to disable the
4412 * feature in the driver. This is not a fatal error.
4414 if ((phba->cfg_enable_bg) &&
4415 !(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
4418 if (phba->max_vpi && phba->cfg_enable_npiv &&
4419 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
4423 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4424 "0379 Feature Mismatch Data: x%08x %08x "
4425 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
4426 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
4427 phba->cfg_enable_npiv, phba->max_vpi);
4428 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
4429 phba->cfg_enable_bg = 0;
4430 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
4431 phba->cfg_enable_npiv = 0;
4434 /* These SLI3 features are assumed in SLI4 */
4435 spin_lock_irq(&phba->hbalock);
4436 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
4437 spin_unlock_irq(&phba->hbalock);
4439 /* Read the port's service parameters. */
4440 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
4442 phba->link_state = LPFC_HBA_ERROR;
4447 mboxq->vport = vport;
4448 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4449 mp = (struct lpfc_dmabuf *) mboxq->context1;
4450 if (rc == MBX_SUCCESS) {
4451 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
4456 * This memory was allocated by the lpfc_read_sparam routine. Release
4457 * it to the mbuf pool.
4459 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4461 mboxq->context1 = NULL;
4463 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4464 "0382 READ_SPARAM command failed "
4465 "status %d, mbxStatus x%x\n",
4466 rc, bf_get(lpfc_mqe_status, mqe));
4467 phba->link_state = LPFC_HBA_ERROR;
4472 if (phba->cfg_soft_wwnn)
4473 u64_to_wwn(phba->cfg_soft_wwnn,
4474 vport->fc_sparam.nodeName.u.wwn);
4475 if (phba->cfg_soft_wwpn)
4476 u64_to_wwn(phba->cfg_soft_wwpn,
4477 vport->fc_sparam.portName.u.wwn);
4478 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
4479 sizeof(struct lpfc_name));
4480 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
4481 sizeof(struct lpfc_name));
4483 /* Update the fc_host data structures with new wwn. */
4484 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4485 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4487 /* Register SGL pool to the device using non-embedded mailbox command */
4488 rc = lpfc_sli4_post_sgl_list(phba);
4490 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4491 "0582 Error %d during sgl post operation\n",
4497 /* Register SCSI SGL pool to the device */
4498 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
4500 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4501 "0383 Error %d during scsi sgl post "
4503 /* Some Scsi buffers were moved to the abort scsi list */
4504 /* A pci function reset will repost them */
4509 /* Post the rpi header region to the device. */
4510 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
4512 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4513 "0393 Error %d during rpi post operation\n",
4519 /* Set up all the queues to the device */
4520 rc = lpfc_sli4_queue_setup(phba);
4522 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4523 "0381 Error %d during queue setup.\n ", rc);
4524 goto out_stop_timers;
4527 /* Arm the CQs and then EQs on device */
4528 lpfc_sli4_arm_cqeq_intr(phba);
4530 /* Indicate device interrupt mode */
4531 phba->sli4_hba.intr_enable = 1;
4533 /* Allow asynchronous mailbox command to go through */
4534 spin_lock_irq(&phba->hbalock);
4535 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4536 spin_unlock_irq(&phba->hbalock);
4538 /* Post receive buffers to the device */
4539 lpfc_sli4_rb_setup(phba);
4541 /* Reset HBA FCF states after HBA reset */
4542 phba->fcf.fcf_flag = 0;
4543 phba->fcf.current_rec.flag = 0;
4545 /* Start the ELS watchdog timer */
4546 mod_timer(&vport->els_tmofunc,
4547 jiffies + HZ * (phba->fc_ratov * 2));
4549 /* Start heart beat timer */
4550 mod_timer(&phba->hb_tmofunc,
4551 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
4552 phba->hb_outstanding = 0;
4553 phba->last_completion_time = jiffies;
4555 /* Start error attention (ERATT) polling timer */
4556 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
4558 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4559 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4560 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4562 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4563 "2829 This device supports "
4564 "Advanced Error Reporting (AER)\n");
4565 spin_lock_irq(&phba->hbalock);
4566 phba->hba_flag |= HBA_AER_ENABLED;
4567 spin_unlock_irq(&phba->hbalock);
4569 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4570 "2830 This device does not support "
4571 "Advanced Error Reporting (AER)\n");
4572 phba->cfg_aer_support = 0;
4577 * The port is ready, set the host's link state to LINK_DOWN
4578 * in preparation for link interrupts.
4580 lpfc_init_link(phba, mboxq, phba->cfg_topology, phba->cfg_link_speed);
4581 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4582 lpfc_set_loopback_flag(phba);
4583 /* Change driver state to LPFC_LINK_DOWN right before init link */
4584 spin_lock_irq(&phba->hbalock);
4585 phba->link_state = LPFC_LINK_DOWN;
4586 spin_unlock_irq(&phba->hbalock);
4587 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
4588 if (unlikely(rc != MBX_NOT_FINISHED)) {
4594 /* Unset all the queues set up in this routine when error out */
4596 lpfc_sli4_queue_unset(phba);
4600 lpfc_stop_hba_timers(phba);
4604 mempool_free(mboxq, phba->mbox_mem_pool);
4609 * lpfc_mbox_timeout - Timeout call back function for mbox timer
4610 * @ptr: context object - pointer to hba structure.
4612 * This is the callback function for mailbox timer. The mailbox
4613 * timer is armed when a new mailbox command is issued and the timer
4614 * is deleted when the mailbox complete. The function is called by
4615 * the kernel timer code when a mailbox does not complete within
4616 * expected time. This function wakes up the worker thread to
4617 * process the mailbox timeout and returns. All the processing is
4618 * done by the worker thread function lpfc_mbox_timeout_handler.
4621 lpfc_mbox_timeout(unsigned long ptr)
4623 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
4624 unsigned long iflag;
4625 uint32_t tmo_posted;
4627 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
4628 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
4630 phba->pport->work_port_events |= WORKER_MBOX_TMO;
4631 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
4634 lpfc_worker_wake_up(phba);
4640 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
4641 * @phba: Pointer to HBA context object.
4643 * This function is called from worker thread when a mailbox command times out.
4644 * The caller is not required to hold any locks. This function will reset the
4645 * HBA and recover all the pending commands.
4648 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
4650 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
4651 MAILBOX_t *mb = &pmbox->u.mb;
4652 struct lpfc_sli *psli = &phba->sli;
4653 struct lpfc_sli_ring *pring;
4655 /* Check the pmbox pointer first. There is a race condition
4656 * between the mbox timeout handler getting executed in the
4657 * worklist and the mailbox actually completing. When this
4658 * race condition occurs, the mbox_active will be NULL.
4660 spin_lock_irq(&phba->hbalock);
4661 if (pmbox == NULL) {
4662 lpfc_printf_log(phba, KERN_WARNING,
4664 "0353 Active Mailbox cleared - mailbox timeout "
4666 spin_unlock_irq(&phba->hbalock);
4670 /* Mbox cmd <mbxCommand> timeout */
4671 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4672 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
4674 phba->pport->port_state,
4676 phba->sli.mbox_active);
4677 spin_unlock_irq(&phba->hbalock);
4679 /* Setting state unknown so lpfc_sli_abort_iocb_ring
4680 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
4681 * it to fail all oustanding SCSI IO.
4683 spin_lock_irq(&phba->pport->work_port_lock);
4684 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
4685 spin_unlock_irq(&phba->pport->work_port_lock);
4686 spin_lock_irq(&phba->hbalock);
4687 phba->link_state = LPFC_LINK_UNKNOWN;
4688 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
4689 spin_unlock_irq(&phba->hbalock);
4691 pring = &psli->ring[psli->fcp_ring];
4692 lpfc_sli_abort_iocb_ring(phba, pring);
4694 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4695 "0345 Resetting board due to mailbox timeout\n");
4697 /* Reset the HBA device */
4698 lpfc_reset_hba(phba);
4702 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
4703 * @phba: Pointer to HBA context object.
4704 * @pmbox: Pointer to mailbox object.
4705 * @flag: Flag indicating how the mailbox need to be processed.
4707 * This function is called by discovery code and HBA management code
4708 * to submit a mailbox command to firmware with SLI-3 interface spec. This
4709 * function gets the hbalock to protect the data structures.
4710 * The mailbox command can be submitted in polling mode, in which case
4711 * this function will wait in a polling loop for the completion of the
4713 * If the mailbox is submitted in no_wait mode (not polling) the
4714 * function will submit the command and returns immediately without waiting
4715 * for the mailbox completion. The no_wait is supported only when HBA
4716 * is in SLI2/SLI3 mode - interrupts are enabled.
4717 * The SLI interface allows only one mailbox pending at a time. If the
4718 * mailbox is issued in polling mode and there is already a mailbox
4719 * pending, then the function will return an error. If the mailbox is issued
4720 * in NO_WAIT mode and there is a mailbox pending already, the function
4721 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
4722 * The sli layer owns the mailbox object until the completion of mailbox
4723 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
4724 * return codes the caller owns the mailbox command after the return of
4728 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
4732 struct lpfc_sli *psli = &phba->sli;
4733 uint32_t status, evtctr;
4736 unsigned long timeout;
4737 unsigned long drvr_flag = 0;
4738 uint32_t word0, ldata;
4739 void __iomem *to_slim;
4740 int processing_queue = 0;
4742 spin_lock_irqsave(&phba->hbalock, drvr_flag);
4744 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4745 /* processing mbox queue from intr_handler */
4746 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
4747 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4750 processing_queue = 1;
4751 pmbox = lpfc_mbox_get(phba);
4753 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4758 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
4759 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
4761 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4762 lpfc_printf_log(phba, KERN_ERR,
4763 LOG_MBOX | LOG_VPORT,
4764 "1806 Mbox x%x failed. No vport\n",
4765 pmbox->u.mb.mbxCommand);
4767 goto out_not_finished;
4771 /* If the PCI channel is in offline state, do not post mbox. */
4772 if (unlikely(pci_channel_offline(phba->pcidev))) {
4773 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4774 goto out_not_finished;
4777 /* If HBA has a deferred error attention, fail the iocb. */
4778 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
4779 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4780 goto out_not_finished;
4786 status = MBX_SUCCESS;
4788 if (phba->link_state == LPFC_HBA_ERROR) {
4789 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4791 /* Mbox command <mbxCommand> cannot issue */
4792 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4793 "(%d):0311 Mailbox command x%x cannot "
4794 "issue Data: x%x x%x\n",
4795 pmbox->vport ? pmbox->vport->vpi : 0,
4796 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
4797 goto out_not_finished;
4800 if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT &&
4801 !(readl(phba->HCregaddr) & HC_MBINT_ENA)) {
4802 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4803 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4804 "(%d):2528 Mailbox command x%x cannot "
4805 "issue Data: x%x x%x\n",
4806 pmbox->vport ? pmbox->vport->vpi : 0,
4807 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
4808 goto out_not_finished;
4811 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
4812 /* Polling for a mbox command when another one is already active
4813 * is not allowed in SLI. Also, the driver must have established
4814 * SLI2 mode to queue and process multiple mbox commands.
4817 if (flag & MBX_POLL) {
4818 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4820 /* Mbox command <mbxCommand> cannot issue */
4821 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4822 "(%d):2529 Mailbox command x%x "
4823 "cannot issue Data: x%x x%x\n",
4824 pmbox->vport ? pmbox->vport->vpi : 0,
4825 pmbox->u.mb.mbxCommand,
4826 psli->sli_flag, flag);
4827 goto out_not_finished;
4830 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
4831 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4832 /* Mbox command <mbxCommand> cannot issue */
4833 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4834 "(%d):2530 Mailbox command x%x "
4835 "cannot issue Data: x%x x%x\n",
4836 pmbox->vport ? pmbox->vport->vpi : 0,
4837 pmbox->u.mb.mbxCommand,
4838 psli->sli_flag, flag);
4839 goto out_not_finished;
4842 /* Another mailbox command is still being processed, queue this
4843 * command to be processed later.
4845 lpfc_mbox_put(phba, pmbox);
4847 /* Mbox cmd issue - BUSY */
4848 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4849 "(%d):0308 Mbox cmd issue - BUSY Data: "
4850 "x%x x%x x%x x%x\n",
4851 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
4852 mb->mbxCommand, phba->pport->port_state,
4853 psli->sli_flag, flag);
4855 psli->slistat.mbox_busy++;
4856 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4859 lpfc_debugfs_disc_trc(pmbox->vport,
4860 LPFC_DISC_TRC_MBOX_VPORT,
4861 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
4862 (uint32_t)mb->mbxCommand,
4863 mb->un.varWords[0], mb->un.varWords[1]);
4866 lpfc_debugfs_disc_trc(phba->pport,
4868 "MBOX Bsy: cmd:x%x mb:x%x x%x",
4869 (uint32_t)mb->mbxCommand,
4870 mb->un.varWords[0], mb->un.varWords[1]);
4876 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4878 /* If we are not polling, we MUST be in SLI2 mode */
4879 if (flag != MBX_POLL) {
4880 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
4881 (mb->mbxCommand != MBX_KILL_BOARD)) {
4882 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4883 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4884 /* Mbox command <mbxCommand> cannot issue */
4885 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4886 "(%d):2531 Mailbox command x%x "
4887 "cannot issue Data: x%x x%x\n",
4888 pmbox->vport ? pmbox->vport->vpi : 0,
4889 pmbox->u.mb.mbxCommand,
4890 psli->sli_flag, flag);
4891 goto out_not_finished;
4893 /* timeout active mbox command */
4894 mod_timer(&psli->mbox_tmo, (jiffies +
4895 (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand))));
4898 /* Mailbox cmd <cmd> issue */
4899 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4900 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
4902 pmbox->vport ? pmbox->vport->vpi : 0,
4903 mb->mbxCommand, phba->pport->port_state,
4904 psli->sli_flag, flag);
4906 if (mb->mbxCommand != MBX_HEARTBEAT) {
4908 lpfc_debugfs_disc_trc(pmbox->vport,
4909 LPFC_DISC_TRC_MBOX_VPORT,
4910 "MBOX Send vport: cmd:x%x mb:x%x x%x",
4911 (uint32_t)mb->mbxCommand,
4912 mb->un.varWords[0], mb->un.varWords[1]);
4915 lpfc_debugfs_disc_trc(phba->pport,
4917 "MBOX Send: cmd:x%x mb:x%x x%x",
4918 (uint32_t)mb->mbxCommand,
4919 mb->un.varWords[0], mb->un.varWords[1]);
4923 psli->slistat.mbox_cmd++;
4924 evtctr = psli->slistat.mbox_event;
4926 /* next set own bit for the adapter and copy over command word */
4927 mb->mbxOwner = OWN_CHIP;
4929 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
4930 /* Populate mbox extension offset word. */
4931 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
4932 *(((uint32_t *)mb) + pmbox->mbox_offset_word)
4933 = (uint8_t *)phba->mbox_ext
4934 - (uint8_t *)phba->mbox;
4937 /* Copy the mailbox extension data */
4938 if (pmbox->in_ext_byte_len && pmbox->context2) {
4939 lpfc_sli_pcimem_bcopy(pmbox->context2,
4940 (uint8_t *)phba->mbox_ext,
4941 pmbox->in_ext_byte_len);
4943 /* Copy command data to host SLIM area */
4944 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
4946 /* Populate mbox extension offset word. */
4947 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
4948 *(((uint32_t *)mb) + pmbox->mbox_offset_word)
4949 = MAILBOX_HBA_EXT_OFFSET;
4951 /* Copy the mailbox extension data */
4952 if (pmbox->in_ext_byte_len && pmbox->context2) {
4953 lpfc_memcpy_to_slim(phba->MBslimaddr +
4954 MAILBOX_HBA_EXT_OFFSET,
4955 pmbox->context2, pmbox->in_ext_byte_len);
4958 if (mb->mbxCommand == MBX_CONFIG_PORT) {
4959 /* copy command data into host mbox for cmpl */
4960 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
4963 /* First copy mbox command data to HBA SLIM, skip past first
4965 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4966 lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0],
4967 MAILBOX_CMD_SIZE - sizeof (uint32_t));
4969 /* Next copy over first word, with mbxOwner set */
4970 ldata = *((uint32_t *)mb);
4971 to_slim = phba->MBslimaddr;
4972 writel(ldata, to_slim);
4973 readl(to_slim); /* flush */
4975 if (mb->mbxCommand == MBX_CONFIG_PORT) {
4976 /* switch over to host mailbox */
4977 psli->sli_flag |= LPFC_SLI_ACTIVE;
4985 /* Set up reference to mailbox command */
4986 psli->mbox_active = pmbox;
4987 /* Interrupt board to do it */
4988 writel(CA_MBATT, phba->CAregaddr);
4989 readl(phba->CAregaddr); /* flush */
4990 /* Don't wait for it to finish, just return */
4994 /* Set up null reference to mailbox command */
4995 psli->mbox_active = NULL;
4996 /* Interrupt board to do it */
4997 writel(CA_MBATT, phba->CAregaddr);
4998 readl(phba->CAregaddr); /* flush */
5000 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
5001 /* First read mbox status word */
5002 word0 = *((uint32_t *)phba->mbox);
5003 word0 = le32_to_cpu(word0);
5005 /* First read mbox status word */
5006 word0 = readl(phba->MBslimaddr);
5009 /* Read the HBA Host Attention Register */
5010 ha_copy = readl(phba->HAregaddr);
5011 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
5015 /* Wait for command to complete */
5016 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
5017 (!(ha_copy & HA_MBATT) &&
5018 (phba->link_state > LPFC_WARM_START))) {
5019 if (time_after(jiffies, timeout)) {
5020 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5021 spin_unlock_irqrestore(&phba->hbalock,
5023 goto out_not_finished;
5026 /* Check if we took a mbox interrupt while we were
5028 if (((word0 & OWN_CHIP) != OWN_CHIP)
5029 && (evtctr != psli->slistat.mbox_event))
5033 spin_unlock_irqrestore(&phba->hbalock,
5036 spin_lock_irqsave(&phba->hbalock, drvr_flag);
5039 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
5040 /* First copy command data */
5041 word0 = *((uint32_t *)phba->mbox);
5042 word0 = le32_to_cpu(word0);
5043 if (mb->mbxCommand == MBX_CONFIG_PORT) {
5046 /* Check real SLIM for any errors */
5047 slimword0 = readl(phba->MBslimaddr);
5048 slimmb = (MAILBOX_t *) & slimword0;
5049 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
5050 && slimmb->mbxStatus) {
5057 /* First copy command data */
5058 word0 = readl(phba->MBslimaddr);
5060 /* Read the HBA Host Attention Register */
5061 ha_copy = readl(phba->HAregaddr);
5064 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
5065 /* copy results back to user */
5066 lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE);
5067 /* Copy the mailbox extension data */
5068 if (pmbox->out_ext_byte_len && pmbox->context2) {
5069 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
5071 pmbox->out_ext_byte_len);
5074 /* First copy command data */
5075 lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
5077 /* Copy the mailbox extension data */
5078 if (pmbox->out_ext_byte_len && pmbox->context2) {
5079 lpfc_memcpy_from_slim(pmbox->context2,
5081 MAILBOX_HBA_EXT_OFFSET,
5082 pmbox->out_ext_byte_len);
5086 writel(HA_MBATT, phba->HAregaddr);
5087 readl(phba->HAregaddr); /* flush */
5089 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5090 status = mb->mbxStatus;
5093 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
5097 if (processing_queue) {
5098 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
5099 lpfc_mbox_cmpl_put(phba, pmbox);
5101 return MBX_NOT_FINISHED;
5105 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
5106 * @phba: Pointer to HBA context object.
5108 * The function blocks the posting of SLI4 asynchronous mailbox commands from
5109 * the driver internal pending mailbox queue. It will then try to wait out the
5110 * possible outstanding mailbox command before return.
5113 * 0 - the outstanding mailbox command completed; otherwise, the wait for
5114 * the outstanding mailbox command timed out.
5117 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
5119 struct lpfc_sli *psli = &phba->sli;
5120 uint8_t actcmd = MBX_HEARTBEAT;
5122 unsigned long timeout;
5124 /* Mark the asynchronous mailbox command posting as blocked */
5125 spin_lock_irq(&phba->hbalock);
5126 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
5127 if (phba->sli.mbox_active)
5128 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
5129 spin_unlock_irq(&phba->hbalock);
5130 /* Determine how long we might wait for the active mailbox
5131 * command to be gracefully completed by firmware.
5133 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
5135 /* Wait for the outstnading mailbox command to complete */
5136 while (phba->sli.mbox_active) {
5137 /* Check active mailbox complete status every 2ms */
5139 if (time_after(jiffies, timeout)) {
5140 /* Timeout, marked the outstanding cmd not complete */
5146 /* Can not cleanly block async mailbox command, fails it */
5148 spin_lock_irq(&phba->hbalock);
5149 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5150 spin_unlock_irq(&phba->hbalock);
5156 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
5157 * @phba: Pointer to HBA context object.
5159 * The function unblocks and resume posting of SLI4 asynchronous mailbox
5160 * commands from the driver internal pending mailbox queue. It makes sure
5161 * that there is no outstanding mailbox command before resuming posting
5162 * asynchronous mailbox commands. If, for any reason, there is outstanding
5163 * mailbox command, it will try to wait it out before resuming asynchronous
5164 * mailbox command posting.
5167 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
5169 struct lpfc_sli *psli = &phba->sli;
5171 spin_lock_irq(&phba->hbalock);
5172 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
5173 /* Asynchronous mailbox posting is not blocked, do nothing */
5174 spin_unlock_irq(&phba->hbalock);
5178 /* Outstanding synchronous mailbox command is guaranteed to be done,
5179 * successful or timeout, after timing-out the outstanding mailbox
5180 * command shall always be removed, so just unblock posting async
5181 * mailbox command and resume
5183 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5184 spin_unlock_irq(&phba->hbalock);
5186 /* wake up worker thread to post asynchronlous mailbox command */
5187 lpfc_worker_wake_up(phba);
5191 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
5192 * @phba: Pointer to HBA context object.
5193 * @mboxq: Pointer to mailbox object.
5195 * The function posts a mailbox to the port. The mailbox is expected
5196 * to be comletely filled in and ready for the port to operate on it.
5197 * This routine executes a synchronous completion operation on the
5198 * mailbox by polling for its completion.
5200 * The caller must not be holding any locks when calling this routine.
5203 * MBX_SUCCESS - mailbox posted successfully
5204 * Any of the MBX error values.
5207 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5209 int rc = MBX_SUCCESS;
5210 unsigned long iflag;
5212 uint32_t mcqe_status;
5214 unsigned long timeout;
5215 struct lpfc_sli *psli = &phba->sli;
5216 struct lpfc_mqe *mb = &mboxq->u.mqe;
5217 struct lpfc_bmbx_create *mbox_rgn;
5218 struct dma_address *dma_address;
5219 struct lpfc_register bmbx_reg;
5222 * Only one mailbox can be active to the bootstrap mailbox region
5223 * at a time and there is no queueing provided.
5225 spin_lock_irqsave(&phba->hbalock, iflag);
5226 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
5227 spin_unlock_irqrestore(&phba->hbalock, iflag);
5228 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5229 "(%d):2532 Mailbox command x%x (x%x) "
5230 "cannot issue Data: x%x x%x\n",
5231 mboxq->vport ? mboxq->vport->vpi : 0,
5232 mboxq->u.mb.mbxCommand,
5233 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5234 psli->sli_flag, MBX_POLL);
5235 return MBXERR_ERROR;
5237 /* The server grabs the token and owns it until release */
5238 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
5239 phba->sli.mbox_active = mboxq;
5240 spin_unlock_irqrestore(&phba->hbalock, iflag);
5243 * Initialize the bootstrap memory region to avoid stale data areas
5244 * in the mailbox post. Then copy the caller's mailbox contents to
5245 * the bmbx mailbox region.
5247 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
5248 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
5249 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
5250 sizeof(struct lpfc_mqe));
5252 /* Post the high mailbox dma address to the port and wait for ready. */
5253 dma_address = &phba->sli4_hba.bmbx.dma_address;
5254 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
5256 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd)
5259 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
5260 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
5264 if (time_after(jiffies, timeout)) {
5268 } while (!db_ready);
5270 /* Post the low mailbox dma address to the port. */
5271 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
5272 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd)
5275 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
5276 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
5280 if (time_after(jiffies, timeout)) {
5284 } while (!db_ready);
5287 * Read the CQ to ensure the mailbox has completed.
5288 * If so, update the mailbox status so that the upper layers
5289 * can complete the request normally.
5291 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
5292 sizeof(struct lpfc_mqe));
5293 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
5294 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
5295 sizeof(struct lpfc_mcqe));
5296 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
5298 /* Prefix the mailbox status with range x4000 to note SLI4 status. */
5299 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
5300 bf_set(lpfc_mqe_status, mb, LPFC_MBX_ERROR_RANGE | mcqe_status);
5303 lpfc_sli4_swap_str(phba, mboxq);
5305 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5306 "(%d):0356 Mailbox cmd x%x (x%x) Status x%x "
5307 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
5308 " x%x x%x CQ: x%x x%x x%x x%x\n",
5309 mboxq->vport ? mboxq->vport->vpi : 0,
5310 mbx_cmnd, lpfc_sli4_mbox_opcode_get(phba, mboxq),
5311 bf_get(lpfc_mqe_status, mb),
5312 mb->un.mb_words[0], mb->un.mb_words[1],
5313 mb->un.mb_words[2], mb->un.mb_words[3],
5314 mb->un.mb_words[4], mb->un.mb_words[5],
5315 mb->un.mb_words[6], mb->un.mb_words[7],
5316 mb->un.mb_words[8], mb->un.mb_words[9],
5317 mb->un.mb_words[10], mb->un.mb_words[11],
5318 mb->un.mb_words[12], mboxq->mcqe.word0,
5319 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
5320 mboxq->mcqe.trailer);
5322 /* We are holding the token, no needed for lock when release */
5323 spin_lock_irqsave(&phba->hbalock, iflag);
5324 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5325 phba->sli.mbox_active = NULL;
5326 spin_unlock_irqrestore(&phba->hbalock, iflag);
5331 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
5332 * @phba: Pointer to HBA context object.
5333 * @pmbox: Pointer to mailbox object.
5334 * @flag: Flag indicating how the mailbox need to be processed.
5336 * This function is called by discovery code and HBA management code to submit
5337 * a mailbox command to firmware with SLI-4 interface spec.
5339 * Return codes the caller owns the mailbox command after the return of the
5343 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
5346 struct lpfc_sli *psli = &phba->sli;
5347 unsigned long iflags;
5350 rc = lpfc_mbox_dev_check(phba);
5352 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5353 "(%d):2544 Mailbox command x%x (x%x) "
5354 "cannot issue Data: x%x x%x\n",
5355 mboxq->vport ? mboxq->vport->vpi : 0,
5356 mboxq->u.mb.mbxCommand,
5357 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5358 psli->sli_flag, flag);
5359 goto out_not_finished;
5362 /* Detect polling mode and jump to a handler */
5363 if (!phba->sli4_hba.intr_enable) {
5364 if (flag == MBX_POLL)
5365 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
5368 if (rc != MBX_SUCCESS)
5369 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5370 "(%d):2541 Mailbox command x%x "
5371 "(x%x) cannot issue Data: x%x x%x\n",
5372 mboxq->vport ? mboxq->vport->vpi : 0,
5373 mboxq->u.mb.mbxCommand,
5374 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5375 psli->sli_flag, flag);
5377 } else if (flag == MBX_POLL) {
5378 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
5379 "(%d):2542 Try to issue mailbox command "
5380 "x%x (x%x) synchronously ahead of async"
5381 "mailbox command queue: x%x x%x\n",
5382 mboxq->vport ? mboxq->vport->vpi : 0,
5383 mboxq->u.mb.mbxCommand,
5384 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5385 psli->sli_flag, flag);
5386 /* Try to block the asynchronous mailbox posting */
5387 rc = lpfc_sli4_async_mbox_block(phba);
5389 /* Successfully blocked, now issue sync mbox cmd */
5390 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
5391 if (rc != MBX_SUCCESS)
5392 lpfc_printf_log(phba, KERN_ERR,
5394 "(%d):2597 Mailbox command "
5395 "x%x (x%x) cannot issue "
5398 mboxq->vport->vpi : 0,
5399 mboxq->u.mb.mbxCommand,
5400 lpfc_sli4_mbox_opcode_get(phba,
5402 psli->sli_flag, flag);
5403 /* Unblock the async mailbox posting afterward */
5404 lpfc_sli4_async_mbox_unblock(phba);
5409 /* Now, interrupt mode asynchrous mailbox command */
5410 rc = lpfc_mbox_cmd_check(phba, mboxq);
5412 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5413 "(%d):2543 Mailbox command x%x (x%x) "
5414 "cannot issue Data: x%x x%x\n",
5415 mboxq->vport ? mboxq->vport->vpi : 0,
5416 mboxq->u.mb.mbxCommand,
5417 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5418 psli->sli_flag, flag);
5419 goto out_not_finished;
5422 /* Put the mailbox command to the driver internal FIFO */
5423 psli->slistat.mbox_busy++;
5424 spin_lock_irqsave(&phba->hbalock, iflags);
5425 lpfc_mbox_put(phba, mboxq);
5426 spin_unlock_irqrestore(&phba->hbalock, iflags);
5427 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5428 "(%d):0354 Mbox cmd issue - Enqueue Data: "
5429 "x%x (x%x) x%x x%x x%x\n",
5430 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
5431 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5432 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5433 phba->pport->port_state,
5434 psli->sli_flag, MBX_NOWAIT);
5435 /* Wake up worker thread to transport mailbox command from head */
5436 lpfc_worker_wake_up(phba);
5441 return MBX_NOT_FINISHED;
5445 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
5446 * @phba: Pointer to HBA context object.
5448 * This function is called by worker thread to send a mailbox command to
5449 * SLI4 HBA firmware.
5453 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
5455 struct lpfc_sli *psli = &phba->sli;
5456 LPFC_MBOXQ_t *mboxq;
5457 int rc = MBX_SUCCESS;
5458 unsigned long iflags;
5459 struct lpfc_mqe *mqe;
5462 /* Check interrupt mode before post async mailbox command */
5463 if (unlikely(!phba->sli4_hba.intr_enable))
5464 return MBX_NOT_FINISHED;
5466 /* Check for mailbox command service token */
5467 spin_lock_irqsave(&phba->hbalock, iflags);
5468 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
5469 spin_unlock_irqrestore(&phba->hbalock, iflags);
5470 return MBX_NOT_FINISHED;
5472 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
5473 spin_unlock_irqrestore(&phba->hbalock, iflags);
5474 return MBX_NOT_FINISHED;
5476 if (unlikely(phba->sli.mbox_active)) {
5477 spin_unlock_irqrestore(&phba->hbalock, iflags);
5478 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5479 "0384 There is pending active mailbox cmd\n");
5480 return MBX_NOT_FINISHED;
5482 /* Take the mailbox command service token */
5483 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
5485 /* Get the next mailbox command from head of queue */
5486 mboxq = lpfc_mbox_get(phba);
5488 /* If no more mailbox command waiting for post, we're done */
5490 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5491 spin_unlock_irqrestore(&phba->hbalock, iflags);
5494 phba->sli.mbox_active = mboxq;
5495 spin_unlock_irqrestore(&phba->hbalock, iflags);
5497 /* Check device readiness for posting mailbox command */
5498 rc = lpfc_mbox_dev_check(phba);
5500 /* Driver clean routine will clean up pending mailbox */
5501 goto out_not_finished;
5503 /* Prepare the mbox command to be posted */
5504 mqe = &mboxq->u.mqe;
5505 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
5507 /* Start timer for the mbox_tmo and log some mailbox post messages */
5508 mod_timer(&psli->mbox_tmo, (jiffies +
5509 (HZ * lpfc_mbox_tmo_val(phba, mbx_cmnd))));
5511 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5512 "(%d):0355 Mailbox cmd x%x (x%x) issue Data: "
5514 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
5515 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5516 phba->pport->port_state, psli->sli_flag);
5518 if (mbx_cmnd != MBX_HEARTBEAT) {
5520 lpfc_debugfs_disc_trc(mboxq->vport,
5521 LPFC_DISC_TRC_MBOX_VPORT,
5522 "MBOX Send vport: cmd:x%x mb:x%x x%x",
5523 mbx_cmnd, mqe->un.mb_words[0],
5524 mqe->un.mb_words[1]);
5526 lpfc_debugfs_disc_trc(phba->pport,
5528 "MBOX Send: cmd:x%x mb:x%x x%x",
5529 mbx_cmnd, mqe->un.mb_words[0],
5530 mqe->un.mb_words[1]);
5533 psli->slistat.mbox_cmd++;
5535 /* Post the mailbox command to the port */
5536 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
5537 if (rc != MBX_SUCCESS) {
5538 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5539 "(%d):2533 Mailbox command x%x (x%x) "
5540 "cannot issue Data: x%x x%x\n",
5541 mboxq->vport ? mboxq->vport->vpi : 0,
5542 mboxq->u.mb.mbxCommand,
5543 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5544 psli->sli_flag, MBX_NOWAIT);
5545 goto out_not_finished;
5551 spin_lock_irqsave(&phba->hbalock, iflags);
5552 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
5553 __lpfc_mbox_cmpl_put(phba, mboxq);
5554 /* Release the token */
5555 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5556 phba->sli.mbox_active = NULL;
5557 spin_unlock_irqrestore(&phba->hbalock, iflags);
5559 return MBX_NOT_FINISHED;
5563 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
5564 * @phba: Pointer to HBA context object.
5565 * @pmbox: Pointer to mailbox object.
5566 * @flag: Flag indicating how the mailbox need to be processed.
5568 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
5569 * the API jump table function pointer from the lpfc_hba struct.
5571 * Return codes the caller owns the mailbox command after the return of the
5575 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
5577 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
5581 * lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table
5582 * @phba: The hba struct for which this call is being executed.
5583 * @dev_grp: The HBA PCI-Device group number.
5585 * This routine sets up the mbox interface API function jump table in @phba
5587 * Returns: 0 - success, -ENODEV - failure.
5590 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5594 case LPFC_PCI_DEV_LP:
5595 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
5596 phba->lpfc_sli_handle_slow_ring_event =
5597 lpfc_sli_handle_slow_ring_event_s3;
5598 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
5599 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
5600 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
5602 case LPFC_PCI_DEV_OC:
5603 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
5604 phba->lpfc_sli_handle_slow_ring_event =
5605 lpfc_sli_handle_slow_ring_event_s4;
5606 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
5607 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
5608 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
5611 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5612 "1420 Invalid HBA PCI-device group: 0x%x\n",
5621 * __lpfc_sli_ringtx_put - Add an iocb to the txq
5622 * @phba: Pointer to HBA context object.
5623 * @pring: Pointer to driver SLI ring object.
5624 * @piocb: Pointer to address of newly added command iocb.
5626 * This function is called with hbalock held to add a command
5627 * iocb to the txq when SLI layer cannot submit the command iocb
5631 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
5632 struct lpfc_iocbq *piocb)
5634 /* Insert the caller's iocb in the txq tail for later processing. */
5635 list_add_tail(&piocb->list, &pring->txq);
5640 * lpfc_sli_next_iocb - Get the next iocb in the txq
5641 * @phba: Pointer to HBA context object.
5642 * @pring: Pointer to driver SLI ring object.
5643 * @piocb: Pointer to address of newly added command iocb.
5645 * This function is called with hbalock held before a new
5646 * iocb is submitted to the firmware. This function checks
5647 * txq to flush the iocbs in txq to Firmware before
5648 * submitting new iocbs to the Firmware.
5649 * If there are iocbs in the txq which need to be submitted
5650 * to firmware, lpfc_sli_next_iocb returns the first element
5651 * of the txq after dequeuing it from txq.
5652 * If there is no iocb in the txq then the function will return
5653 * *piocb and *piocb is set to NULL. Caller needs to check
5654 * *piocb to find if there are more commands in the txq.
5656 static struct lpfc_iocbq *
5657 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
5658 struct lpfc_iocbq **piocb)
5660 struct lpfc_iocbq * nextiocb;
5662 nextiocb = lpfc_sli_ringtx_get(phba, pring);
5672 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
5673 * @phba: Pointer to HBA context object.
5674 * @ring_number: SLI ring number to issue iocb on.
5675 * @piocb: Pointer to command iocb.
5676 * @flag: Flag indicating if this command can be put into txq.
5678 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
5679 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
5680 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
5681 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
5682 * this function allows only iocbs for posting buffers. This function finds
5683 * next available slot in the command ring and posts the command to the
5684 * available slot and writes the port attention register to request HBA start
5685 * processing new iocb. If there is no slot available in the ring and
5686 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
5687 * the function returns IOCB_BUSY.
5689 * This function is called with hbalock held. The function will return success
5690 * after it successfully submit the iocb to firmware or after adding to the
5694 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
5695 struct lpfc_iocbq *piocb, uint32_t flag)
5697 struct lpfc_iocbq *nextiocb;
5699 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
5701 if (piocb->iocb_cmpl && (!piocb->vport) &&
5702 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
5703 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
5704 lpfc_printf_log(phba, KERN_ERR,
5705 LOG_SLI | LOG_VPORT,
5706 "1807 IOCB x%x failed. No vport\n",
5707 piocb->iocb.ulpCommand);
5713 /* If the PCI channel is in offline state, do not post iocbs. */
5714 if (unlikely(pci_channel_offline(phba->pcidev)))
5717 /* If HBA has a deferred error attention, fail the iocb. */
5718 if (unlikely(phba->hba_flag & DEFER_ERATT))
5722 * We should never get an IOCB if we are in a < LINK_DOWN state
5724 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
5728 * Check to see if we are blocking IOCB processing because of a
5729 * outstanding event.
5731 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
5734 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
5736 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
5737 * can be issued if the link is not up.
5739 switch (piocb->iocb.ulpCommand) {
5740 case CMD_GEN_REQUEST64_CR:
5741 case CMD_GEN_REQUEST64_CX:
5742 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
5743 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
5744 FC_RCTL_DD_UNSOL_CMD) ||
5745 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
5746 MENLO_TRANSPORT_TYPE))
5750 case CMD_QUE_RING_BUF_CN:
5751 case CMD_QUE_RING_BUF64_CN:
5753 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
5754 * completion, iocb_cmpl MUST be 0.
5756 if (piocb->iocb_cmpl)
5757 piocb->iocb_cmpl = NULL;
5759 case CMD_CREATE_XRI_CR:
5760 case CMD_CLOSE_XRI_CN:
5761 case CMD_CLOSE_XRI_CX:
5768 * For FCP commands, we must be in a state where we can process link
5771 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
5772 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
5776 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
5777 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
5778 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
5781 lpfc_sli_update_ring(phba, pring);
5783 lpfc_sli_update_full_ring(phba, pring);
5786 return IOCB_SUCCESS;
5791 pring->stats.iocb_cmd_delay++;
5795 if (!(flag & SLI_IOCB_RET_IOCB)) {
5796 __lpfc_sli_ringtx_put(phba, pring, piocb);
5797 return IOCB_SUCCESS;
5804 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
5805 * @phba: Pointer to HBA context object.
5806 * @piocb: Pointer to command iocb.
5807 * @sglq: Pointer to the scatter gather queue object.
5809 * This routine converts the bpl or bde that is in the IOCB
5810 * to a sgl list for the sli4 hardware. The physical address
5811 * of the bpl/bde is converted back to a virtual address.
5812 * If the IOCB contains a BPL then the list of BDE's is
5813 * converted to sli4_sge's. If the IOCB contains a single
5814 * BDE then it is converted to a single sli_sge.
5815 * The IOCB is still in cpu endianess so the contents of
5816 * the bpl can be used without byte swapping.
5818 * Returns valid XRI = Success, NO_XRI = Failure.
5821 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
5822 struct lpfc_sglq *sglq)
5824 uint16_t xritag = NO_XRI;
5825 struct ulp_bde64 *bpl = NULL;
5826 struct ulp_bde64 bde;
5827 struct sli4_sge *sgl = NULL;
5832 if (!piocbq || !sglq)
5835 sgl = (struct sli4_sge *)sglq->sgl;
5836 icmd = &piocbq->iocb;
5837 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
5838 numBdes = icmd->un.genreq64.bdl.bdeSize /
5839 sizeof(struct ulp_bde64);
5840 /* The addrHigh and addrLow fields within the IOCB
5841 * have not been byteswapped yet so there is no
5842 * need to swap them back.
5844 bpl = (struct ulp_bde64 *)
5845 ((struct lpfc_dmabuf *)piocbq->context3)->virt;
5850 for (i = 0; i < numBdes; i++) {
5851 /* Should already be byte swapped. */
5852 sgl->addr_hi = bpl->addrHigh;
5853 sgl->addr_lo = bpl->addrLow;
5855 if ((i+1) == numBdes)
5856 bf_set(lpfc_sli4_sge_last, sgl, 1);
5858 bf_set(lpfc_sli4_sge_last, sgl, 0);
5859 sgl->word2 = cpu_to_le32(sgl->word2);
5860 /* swap the size field back to the cpu so we
5861 * can assign it to the sgl.
5863 bde.tus.w = le32_to_cpu(bpl->tus.w);
5864 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
5868 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
5869 /* The addrHigh and addrLow fields of the BDE have not
5870 * been byteswapped yet so they need to be swapped
5871 * before putting them in the sgl.
5874 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
5876 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
5877 bf_set(lpfc_sli4_sge_last, sgl, 1);
5878 sgl->word2 = cpu_to_le32(sgl->word2);
5880 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
5882 return sglq->sli4_xritag;
5886 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
5887 * @phba: Pointer to HBA context object.
5889 * This routine performs a round robin SCSI command to SLI4 FCP WQ index
5890 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
5893 * Return: index into SLI4 fast-path FCP queue index.
5896 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
5899 if (phba->fcp_qidx >= phba->cfg_fcp_wq_count)
5902 return phba->fcp_qidx;
5906 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
5907 * @phba: Pointer to HBA context object.
5908 * @piocb: Pointer to command iocb.
5909 * @wqe: Pointer to the work queue entry.
5911 * This routine converts the iocb command to its Work Queue Entry
5912 * equivalent. The wqe pointer should not have any fields set when
5913 * this routine is called because it will memcpy over them.
5914 * This routine does not set the CQ_ID or the WQEC bits in the
5917 * Returns: 0 = Success, IOCB_ERROR = Failure.
5920 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
5921 union lpfc_wqe *wqe)
5923 uint32_t xmit_len = 0, total_len = 0;
5927 uint8_t command_type = ELS_COMMAND_NON_FIP;
5930 struct ulp_bde64 *bpl = NULL;
5931 uint32_t els_id = ELS_ID_DEFAULT;
5933 struct ulp_bde64 bde;
5935 fip = phba->hba_flag & HBA_FIP_SUPPORT;
5936 /* The fcp commands will set command type */
5937 if (iocbq->iocb_flag & LPFC_IO_FCP)
5938 command_type = FCP_COMMAND;
5939 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
5940 command_type = ELS_COMMAND_FIP;
5942 command_type = ELS_COMMAND_NON_FIP;
5944 /* Some of the fields are in the right position already */
5945 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
5946 abort_tag = (uint32_t) iocbq->iotag;
5947 xritag = iocbq->sli4_xritag;
5948 wqe->words[7] = 0; /* The ct field has moved so reset */
5949 /* words0-2 bpl convert bde */
5950 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
5951 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
5952 sizeof(struct ulp_bde64);
5953 bpl = (struct ulp_bde64 *)
5954 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
5958 /* Should already be byte swapped. */
5959 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
5960 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
5961 /* swap the size field back to the cpu so we
5962 * can assign it to the sgl.
5964 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
5965 xmit_len = wqe->generic.bde.tus.f.bdeSize;
5967 for (i = 0; i < numBdes; i++) {
5968 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
5969 total_len += bde.tus.f.bdeSize;
5972 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
5974 iocbq->iocb.ulpIoTag = iocbq->iotag;
5975 cmnd = iocbq->iocb.ulpCommand;
5977 switch (iocbq->iocb.ulpCommand) {
5978 case CMD_ELS_REQUEST64_CR:
5979 if (!iocbq->iocb.ulpLe) {
5980 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5981 "2007 Only Limited Edition cmd Format"
5982 " supported 0x%x\n",
5983 iocbq->iocb.ulpCommand);
5986 wqe->els_req.payload_len = xmit_len;
5987 /* Els_reguest64 has a TMO */
5988 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
5989 iocbq->iocb.ulpTimeout);
5990 /* Need a VF for word 4 set the vf bit*/
5991 bf_set(els_req64_vf, &wqe->els_req, 0);
5992 /* And a VFID for word 12 */
5993 bf_set(els_req64_vfid, &wqe->els_req, 0);
5995 * Set ct field to 3, indicates that the context_tag field
5996 * contains the FCFI and remote N_Port_ID is
6000 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
6001 bf_set(lpfc_wqe_gen_context, &wqe->generic,
6002 iocbq->iocb.ulpContext);
6004 bf_set(lpfc_wqe_gen_ct, &wqe->generic, ct);
6005 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
6006 /* CCP CCPE PV PRI in word10 were set in the memcpy */
6008 if (command_type == ELS_COMMAND_FIP) {
6009 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
6010 >> LPFC_FIP_ELS_ID_SHIFT);
6012 bf_set(lpfc_wqe_gen_els_id, &wqe->generic, els_id);
6015 case CMD_XMIT_SEQUENCE64_CX:
6016 bf_set(lpfc_wqe_gen_context, &wqe->generic,
6017 iocbq->iocb.un.ulpWord[3]);
6018 wqe->generic.word3 = 0;
6019 bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext);
6020 /* The entire sequence is transmitted for this IOCB */
6021 xmit_len = total_len;
6022 cmnd = CMD_XMIT_SEQUENCE64_CR;
6023 case CMD_XMIT_SEQUENCE64_CR:
6024 /* word3 iocb=io_tag32 wqe=payload_offset */
6025 /* payload offset used for multilpe outstanding
6026 * sequences on the same exchange
6029 /* word4 relative_offset memcpy */
6030 /* word5 r_ctl/df_ctl memcpy */
6031 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
6032 wqe->xmit_sequence.xmit_len = xmit_len;
6033 command_type = OTHER_COMMAND;
6035 case CMD_XMIT_BCAST64_CN:
6036 /* word3 iocb=iotag32 wqe=payload_len */
6037 wqe->words[3] = 0; /* no definition for this in wqe */
6038 /* word4 iocb=rsvd wqe=rsvd */
6039 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
6040 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
6041 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
6042 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
6044 case CMD_FCP_IWRITE64_CR:
6045 command_type = FCP_COMMAND_DATA_OUT;
6046 /* The struct for wqe fcp_iwrite has 3 fields that are somewhat
6048 * word3 is payload_len: byte offset to the sgl entry for the
6050 * word4 is total xfer len, same as the IOCB->ulpParameter.
6051 * word5 is initial xfer len 0 = wait for xfer-ready
6054 /* Always wait for xfer-ready before sending data */
6055 wqe->fcp_iwrite.initial_xfer_len = 0;
6056 /* word 4 (xfer length) should have been set on the memcpy */
6058 /* allow write to fall through to read */
6059 case CMD_FCP_IREAD64_CR:
6060 /* FCP_CMD is always the 1st sgl entry */
6061 wqe->fcp_iread.payload_len =
6062 xmit_len + sizeof(struct fcp_rsp);
6064 /* word 4 (xfer length) should have been set on the memcpy */
6066 bf_set(lpfc_wqe_gen_erp, &wqe->generic,
6067 iocbq->iocb.ulpFCP2Rcvy);
6068 bf_set(lpfc_wqe_gen_lnk, &wqe->generic, iocbq->iocb.ulpXS);
6069 /* The XC bit and the XS bit are similar. The driver never
6070 * tracked whether or not the exchange was previouslly open.
6071 * XC = Exchange create, 0 is create. 1 is already open.
6072 * XS = link cmd: 1 do not close the exchange after command.
6073 * XS = 0 close exchange when command completes.
6074 * The only time we would not set the XC bit is when the XS bit
6075 * is set and we are sending our 2nd or greater command on
6078 /* Always open the exchange */
6079 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
6081 wqe->words[10] &= 0xffff0000; /* zero out ebde count */
6082 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
6084 case CMD_FCP_ICMND64_CR:
6085 /* Always open the exchange */
6086 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
6089 wqe->words[10] &= 0xffff0000; /* zero out ebde count */
6090 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
6092 case CMD_GEN_REQUEST64_CR:
6093 /* word3 command length is described as byte offset to the
6094 * rsp_data. Would always be 16, sizeof(struct sli4_sge)
6099 wqe->gen_req.command_len = xmit_len;
6100 /* Word4 parameter copied in the memcpy */
6101 /* Word5 [rctl, type, df_ctl, la] copied in memcpy */
6102 /* word6 context tag copied in memcpy */
6103 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
6104 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
6105 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6106 "2015 Invalid CT %x command 0x%x\n",
6107 ct, iocbq->iocb.ulpCommand);
6110 bf_set(lpfc_wqe_gen_ct, &wqe->generic, 0);
6111 bf_set(wqe_tmo, &wqe->gen_req.wqe_com,
6112 iocbq->iocb.ulpTimeout);
6114 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
6115 command_type = OTHER_COMMAND;
6117 case CMD_XMIT_ELS_RSP64_CX:
6118 /* words0-2 BDE memcpy */
6119 /* word3 iocb=iotag32 wqe=rsvd */
6121 /* word4 iocb=did wge=rsvd. */
6123 /* word5 iocb=rsvd wge=did */
6124 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
6125 iocbq->iocb.un.elsreq64.remoteID);
6127 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
6128 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
6130 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
6131 bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext);
6132 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
6133 bf_set(lpfc_wqe_gen_context, &wqe->generic,
6134 iocbq->vport->vpi + phba->vpi_base);
6135 command_type = OTHER_COMMAND;
6137 case CMD_CLOSE_XRI_CN:
6138 case CMD_ABORT_XRI_CN:
6139 case CMD_ABORT_XRI_CX:
6140 /* words 0-2 memcpy should be 0 rserved */
6141 /* port will send abts */
6142 if (iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
6144 * The link is down so the fw does not need to send abts
6147 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
6149 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
6150 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
6152 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
6153 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
6154 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
6156 * The abort handler will send us CMD_ABORT_XRI_CN or
6157 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
6159 bf_set(lpfc_wqe_gen_command, &wqe->generic, CMD_ABORT_XRI_CX);
6160 cmnd = CMD_ABORT_XRI_CX;
6161 command_type = OTHER_COMMAND;
6164 case CMD_XMIT_BLS_RSP64_CX:
6165 /* As BLS ABTS-ACC WQE is very different from other WQEs,
6166 * we re-construct this WQE here based on information in
6167 * iocbq from scratch.
6169 memset(wqe, 0, sizeof(union lpfc_wqe));
6170 /* OX_ID is invariable to who sent ABTS to CT exchange */
6171 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
6172 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_acc));
6173 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_acc) ==
6174 LPFC_ABTS_UNSOL_INT) {
6175 /* ABTS sent by initiator to CT exchange, the
6176 * RX_ID field will be filled with the newly
6177 * allocated responder XRI.
6179 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
6180 iocbq->sli4_xritag);
6182 /* ABTS sent by responder to CT exchange, the
6183 * RX_ID field will be filled with the responder
6186 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
6187 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_acc));
6189 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
6190 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
6191 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
6192 iocbq->iocb.ulpContext);
6193 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
6194 command_type = OTHER_COMMAND;
6196 case CMD_XRI_ABORTED_CX:
6197 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
6198 /* words0-2 are all 0's no bde */
6199 /* word3 and word4 are rsvrd */
6202 /* word5 iocb=rsvd wge=did */
6203 /* There is no remote port id in the IOCB? */
6204 /* Let this fall through and fail */
6205 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
6206 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
6207 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
6208 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
6210 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6211 "2014 Invalid command 0x%x\n",
6212 iocbq->iocb.ulpCommand);
6217 bf_set(lpfc_wqe_gen_xri, &wqe->generic, xritag);
6218 bf_set(lpfc_wqe_gen_request_tag, &wqe->generic, iocbq->iotag);
6219 wqe->generic.abort_tag = abort_tag;
6220 bf_set(lpfc_wqe_gen_cmd_type, &wqe->generic, command_type);
6221 bf_set(lpfc_wqe_gen_command, &wqe->generic, cmnd);
6222 bf_set(lpfc_wqe_gen_class, &wqe->generic, iocbq->iocb.ulpClass);
6223 bf_set(lpfc_wqe_gen_cq_id, &wqe->generic, LPFC_WQE_CQ_ID_DEFAULT);
6229 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
6230 * @phba: Pointer to HBA context object.
6231 * @ring_number: SLI ring number to issue iocb on.
6232 * @piocb: Pointer to command iocb.
6233 * @flag: Flag indicating if this command can be put into txq.
6235 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
6236 * an iocb command to an HBA with SLI-4 interface spec.
6238 * This function is called with hbalock held. The function will return success
6239 * after it successfully submit the iocb to firmware or after adding to the
6243 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
6244 struct lpfc_iocbq *piocb, uint32_t flag)
6246 struct lpfc_sglq *sglq;
6248 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
6250 if (piocb->sli4_xritag == NO_XRI) {
6251 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
6252 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
6255 if (pring->txq_cnt) {
6256 if (!(flag & SLI_IOCB_RET_IOCB)) {
6257 __lpfc_sli_ringtx_put(phba,
6259 return IOCB_SUCCESS;
6264 sglq = __lpfc_sli_get_sglq(phba);
6266 if (!(flag & SLI_IOCB_RET_IOCB)) {
6267 __lpfc_sli_ringtx_put(phba,
6270 return IOCB_SUCCESS;
6276 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
6277 sglq = NULL; /* These IO's already have an XRI and
6281 /* This is a continuation of a commandi,(CX) so this
6282 * sglq is on the active list
6284 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_xritag);
6290 piocb->sli4_xritag = sglq->sli4_xritag;
6292 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
6296 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
6299 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
6300 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
6302 * For FCP command IOCB, get a new WQ index to distribute
6303 * WQE across the WQsr. On the other hand, for abort IOCB,
6304 * it carries the same WQ index to the original command
6307 if (piocb->iocb_flag & LPFC_IO_FCP)
6308 piocb->fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba);
6309 if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx],
6313 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
6316 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
6322 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
6324 * This routine wraps the actual lockless version for issusing IOCB function
6325 * pointer from the lpfc_hba struct.
6328 * IOCB_ERROR - Error
6329 * IOCB_SUCCESS - Success
6333 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
6334 struct lpfc_iocbq *piocb, uint32_t flag)
6336 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
6340 * lpfc_sli_api_table_setup - Set up sli api fucntion jump table
6341 * @phba: The hba struct for which this call is being executed.
6342 * @dev_grp: The HBA PCI-Device group number.
6344 * This routine sets up the SLI interface API function jump table in @phba
6346 * Returns: 0 - success, -ENODEV - failure.
6349 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6353 case LPFC_PCI_DEV_LP:
6354 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
6355 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
6357 case LPFC_PCI_DEV_OC:
6358 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
6359 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
6362 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6363 "1419 Invalid HBA PCI-device group: 0x%x\n",
6368 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
6373 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
6374 * @phba: Pointer to HBA context object.
6375 * @pring: Pointer to driver SLI ring object.
6376 * @piocb: Pointer to command iocb.
6377 * @flag: Flag indicating if this command can be put into txq.
6379 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
6380 * function. This function gets the hbalock and calls
6381 * __lpfc_sli_issue_iocb function and will return the error returned
6382 * by __lpfc_sli_issue_iocb function. This wrapper is used by
6383 * functions which do not hold hbalock.
6386 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
6387 struct lpfc_iocbq *piocb, uint32_t flag)
6389 unsigned long iflags;
6392 spin_lock_irqsave(&phba->hbalock, iflags);
6393 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
6394 spin_unlock_irqrestore(&phba->hbalock, iflags);
6400 * lpfc_extra_ring_setup - Extra ring setup function
6401 * @phba: Pointer to HBA context object.
6403 * This function is called while driver attaches with the
6404 * HBA to setup the extra ring. The extra ring is used
6405 * only when driver needs to support target mode functionality
6406 * or IP over FC functionalities.
6408 * This function is called with no lock held.
6411 lpfc_extra_ring_setup( struct lpfc_hba *phba)
6413 struct lpfc_sli *psli;
6414 struct lpfc_sli_ring *pring;
6418 /* Adjust cmd/rsp ring iocb entries more evenly */
6420 /* Take some away from the FCP ring */
6421 pring = &psli->ring[psli->fcp_ring];
6422 pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6423 pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6424 pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6425 pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
6427 /* and give them to the extra ring */
6428 pring = &psli->ring[psli->extra_ring];
6430 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6431 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6432 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6433 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
6435 /* Setup default profile for this ring */
6436 pring->iotag_max = 4096;
6437 pring->num_mask = 1;
6438 pring->prt[0].profile = 0; /* Mask 0 */
6439 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
6440 pring->prt[0].type = phba->cfg_multi_ring_type;
6441 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
6446 * lpfc_sli_async_event_handler - ASYNC iocb handler function
6447 * @phba: Pointer to HBA context object.
6448 * @pring: Pointer to driver SLI ring object.
6449 * @iocbq: Pointer to iocb object.
6451 * This function is called by the slow ring event handler
6452 * function when there is an ASYNC event iocb in the ring.
6453 * This function is called with no lock held.
6454 * Currently this function handles only temperature related
6455 * ASYNC events. The function decodes the temperature sensor
6456 * event message and posts events for the management applications.
6459 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
6460 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
6465 struct temp_event temp_event_data;
6466 struct Scsi_Host *shost;
6469 icmd = &iocbq->iocb;
6470 evt_code = icmd->un.asyncstat.evt_code;
6471 temp = icmd->ulpContext;
6473 if ((evt_code != ASYNC_TEMP_WARN) &&
6474 (evt_code != ASYNC_TEMP_SAFE)) {
6475 iocb_w = (uint32_t *) icmd;
6476 lpfc_printf_log(phba,
6479 "0346 Ring %d handler: unexpected ASYNC_STATUS"
6481 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
6482 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
6483 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
6484 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
6486 icmd->un.asyncstat.evt_code,
6487 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
6488 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
6489 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
6490 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
6494 temp_event_data.data = (uint32_t)temp;
6495 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6496 if (evt_code == ASYNC_TEMP_WARN) {
6497 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
6498 lpfc_printf_log(phba,
6501 "0347 Adapter is very hot, please take "
6502 "corrective action. temperature : %d Celsius\n",
6505 if (evt_code == ASYNC_TEMP_SAFE) {
6506 temp_event_data.event_code = LPFC_NORMAL_TEMP;
6507 lpfc_printf_log(phba,
6510 "0340 Adapter temperature is OK now. "
6511 "temperature : %d Celsius\n",
6515 /* Send temperature change event to applications */
6516 shost = lpfc_shost_from_vport(phba->pport);
6517 fc_host_post_vendor_event(shost, fc_get_event_number(),
6518 sizeof(temp_event_data), (char *) &temp_event_data,
6525 * lpfc_sli_setup - SLI ring setup function
6526 * @phba: Pointer to HBA context object.
6528 * lpfc_sli_setup sets up rings of the SLI interface with
6529 * number of iocbs per ring and iotags. This function is
6530 * called while driver attach to the HBA and before the
6531 * interrupts are enabled. So there is no need for locking.
6533 * This function always returns 0.
6536 lpfc_sli_setup(struct lpfc_hba *phba)
6538 int i, totiocbsize = 0;
6539 struct lpfc_sli *psli = &phba->sli;
6540 struct lpfc_sli_ring *pring;
6542 psli->num_rings = MAX_CONFIGURED_RINGS;
6544 psli->fcp_ring = LPFC_FCP_RING;
6545 psli->next_ring = LPFC_FCP_NEXT_RING;
6546 psli->extra_ring = LPFC_EXTRA_RING;
6548 psli->iocbq_lookup = NULL;
6549 psli->iocbq_lookup_len = 0;
6550 psli->last_iotag = 0;
6552 for (i = 0; i < psli->num_rings; i++) {
6553 pring = &psli->ring[i];
6555 case LPFC_FCP_RING: /* ring 0 - FCP */
6556 /* numCiocb and numRiocb are used in config_port */
6557 pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
6558 pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
6559 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6560 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6561 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6562 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
6563 pring->sizeCiocb = (phba->sli_rev == 3) ?
6564 SLI3_IOCB_CMD_SIZE :
6566 pring->sizeRiocb = (phba->sli_rev == 3) ?
6567 SLI3_IOCB_RSP_SIZE :
6569 pring->iotag_ctr = 0;
6571 (phba->cfg_hba_queue_depth * 2);
6572 pring->fast_iotag = pring->iotag_max;
6573 pring->num_mask = 0;
6575 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
6576 /* numCiocb and numRiocb are used in config_port */
6577 pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
6578 pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
6579 pring->sizeCiocb = (phba->sli_rev == 3) ?
6580 SLI3_IOCB_CMD_SIZE :
6582 pring->sizeRiocb = (phba->sli_rev == 3) ?
6583 SLI3_IOCB_RSP_SIZE :
6585 pring->iotag_max = phba->cfg_hba_queue_depth;
6586 pring->num_mask = 0;
6588 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
6589 /* numCiocb and numRiocb are used in config_port */
6590 pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
6591 pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
6592 pring->sizeCiocb = (phba->sli_rev == 3) ?
6593 SLI3_IOCB_CMD_SIZE :
6595 pring->sizeRiocb = (phba->sli_rev == 3) ?
6596 SLI3_IOCB_RSP_SIZE :
6598 pring->fast_iotag = 0;
6599 pring->iotag_ctr = 0;
6600 pring->iotag_max = 4096;
6601 pring->lpfc_sli_rcv_async_status =
6602 lpfc_sli_async_event_handler;
6603 pring->num_mask = LPFC_MAX_RING_MASK;
6604 pring->prt[0].profile = 0; /* Mask 0 */
6605 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
6606 pring->prt[0].type = FC_TYPE_ELS;
6607 pring->prt[0].lpfc_sli_rcv_unsol_event =
6608 lpfc_els_unsol_event;
6609 pring->prt[1].profile = 0; /* Mask 1 */
6610 pring->prt[1].rctl = FC_RCTL_ELS_REP;
6611 pring->prt[1].type = FC_TYPE_ELS;
6612 pring->prt[1].lpfc_sli_rcv_unsol_event =
6613 lpfc_els_unsol_event;
6614 pring->prt[2].profile = 0; /* Mask 2 */
6615 /* NameServer Inquiry */
6616 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
6618 pring->prt[2].type = FC_TYPE_CT;
6619 pring->prt[2].lpfc_sli_rcv_unsol_event =
6620 lpfc_ct_unsol_event;
6621 pring->prt[3].profile = 0; /* Mask 3 */
6622 /* NameServer response */
6623 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
6625 pring->prt[3].type = FC_TYPE_CT;
6626 pring->prt[3].lpfc_sli_rcv_unsol_event =
6627 lpfc_ct_unsol_event;
6628 /* abort unsolicited sequence */
6629 pring->prt[4].profile = 0; /* Mask 4 */
6630 pring->prt[4].rctl = FC_RCTL_BA_ABTS;
6631 pring->prt[4].type = FC_TYPE_BLS;
6632 pring->prt[4].lpfc_sli_rcv_unsol_event =
6633 lpfc_sli4_ct_abort_unsol_event;
6636 totiocbsize += (pring->numCiocb * pring->sizeCiocb) +
6637 (pring->numRiocb * pring->sizeRiocb);
6639 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
6640 /* Too many cmd / rsp ring entries in SLI2 SLIM */
6641 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
6642 "SLI2 SLIM Data: x%x x%lx\n",
6643 phba->brd_no, totiocbsize,
6644 (unsigned long) MAX_SLIM_IOCB_SIZE);
6646 if (phba->cfg_multi_ring_support == 2)
6647 lpfc_extra_ring_setup(phba);
6653 * lpfc_sli_queue_setup - Queue initialization function
6654 * @phba: Pointer to HBA context object.
6656 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
6657 * ring. This function also initializes ring indices of each ring.
6658 * This function is called during the initialization of the SLI
6659 * interface of an HBA.
6660 * This function is called with no lock held and always returns
6664 lpfc_sli_queue_setup(struct lpfc_hba *phba)
6666 struct lpfc_sli *psli;
6667 struct lpfc_sli_ring *pring;
6671 spin_lock_irq(&phba->hbalock);
6672 INIT_LIST_HEAD(&psli->mboxq);
6673 INIT_LIST_HEAD(&psli->mboxq_cmpl);
6674 /* Initialize list headers for txq and txcmplq as double linked lists */
6675 for (i = 0; i < psli->num_rings; i++) {
6676 pring = &psli->ring[i];
6678 pring->next_cmdidx = 0;
6679 pring->local_getidx = 0;
6681 INIT_LIST_HEAD(&pring->txq);
6682 INIT_LIST_HEAD(&pring->txcmplq);
6683 INIT_LIST_HEAD(&pring->iocb_continueq);
6684 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
6685 INIT_LIST_HEAD(&pring->postbufq);
6687 spin_unlock_irq(&phba->hbalock);
6692 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
6693 * @phba: Pointer to HBA context object.
6695 * This routine flushes the mailbox command subsystem. It will unconditionally
6696 * flush all the mailbox commands in the three possible stages in the mailbox
6697 * command sub-system: pending mailbox command queue; the outstanding mailbox
6698 * command; and completed mailbox command queue. It is caller's responsibility
6699 * to make sure that the driver is in the proper state to flush the mailbox
6700 * command sub-system. Namely, the posting of mailbox commands into the
6701 * pending mailbox command queue from the various clients must be stopped;
6702 * either the HBA is in a state that it will never works on the outstanding
6703 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
6704 * mailbox command has been completed.
6707 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
6709 LIST_HEAD(completions);
6710 struct lpfc_sli *psli = &phba->sli;
6712 unsigned long iflag;
6714 /* Flush all the mailbox commands in the mbox system */
6715 spin_lock_irqsave(&phba->hbalock, iflag);
6716 /* The pending mailbox command queue */
6717 list_splice_init(&phba->sli.mboxq, &completions);
6718 /* The outstanding active mailbox command */
6719 if (psli->mbox_active) {
6720 list_add_tail(&psli->mbox_active->list, &completions);
6721 psli->mbox_active = NULL;
6722 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6724 /* The completed mailbox command queue */
6725 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
6726 spin_unlock_irqrestore(&phba->hbalock, iflag);
6728 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
6729 while (!list_empty(&completions)) {
6730 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
6731 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
6733 pmb->mbox_cmpl(phba, pmb);
6738 * lpfc_sli_host_down - Vport cleanup function
6739 * @vport: Pointer to virtual port object.
6741 * lpfc_sli_host_down is called to clean up the resources
6742 * associated with a vport before destroying virtual
6743 * port data structures.
6744 * This function does following operations:
6745 * - Free discovery resources associated with this virtual
6747 * - Free iocbs associated with this virtual port in
6749 * - Send abort for all iocb commands associated with this
6752 * This function is called with no lock held and always returns 1.
6755 lpfc_sli_host_down(struct lpfc_vport *vport)
6757 LIST_HEAD(completions);
6758 struct lpfc_hba *phba = vport->phba;
6759 struct lpfc_sli *psli = &phba->sli;
6760 struct lpfc_sli_ring *pring;
6761 struct lpfc_iocbq *iocb, *next_iocb;
6763 unsigned long flags = 0;
6764 uint16_t prev_pring_flag;
6766 lpfc_cleanup_discovery_resources(vport);
6768 spin_lock_irqsave(&phba->hbalock, flags);
6769 for (i = 0; i < psli->num_rings; i++) {
6770 pring = &psli->ring[i];
6771 prev_pring_flag = pring->flag;
6772 /* Only slow rings */
6773 if (pring->ringno == LPFC_ELS_RING) {
6774 pring->flag |= LPFC_DEFERRED_RING_EVENT;
6775 /* Set the lpfc data pending flag */
6776 set_bit(LPFC_DATA_READY, &phba->data_flags);
6779 * Error everything on the txq since these iocbs have not been
6780 * given to the FW yet.
6782 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
6783 if (iocb->vport != vport)
6785 list_move_tail(&iocb->list, &completions);
6789 /* Next issue ABTS for everything on the txcmplq */
6790 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
6792 if (iocb->vport != vport)
6794 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
6797 pring->flag = prev_pring_flag;
6800 spin_unlock_irqrestore(&phba->hbalock, flags);
6802 /* Cancel all the IOCBs from the completions list */
6803 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
6809 * lpfc_sli_hba_down - Resource cleanup function for the HBA
6810 * @phba: Pointer to HBA context object.
6812 * This function cleans up all iocb, buffers, mailbox commands
6813 * while shutting down the HBA. This function is called with no
6814 * lock held and always returns 1.
6815 * This function does the following to cleanup driver resources:
6816 * - Free discovery resources for each virtual port
6817 * - Cleanup any pending fabric iocbs
6818 * - Iterate through the iocb txq and free each entry
6820 * - Free up any buffer posted to the HBA
6821 * - Free mailbox commands in the mailbox queue.
6824 lpfc_sli_hba_down(struct lpfc_hba *phba)
6826 LIST_HEAD(completions);
6827 struct lpfc_sli *psli = &phba->sli;
6828 struct lpfc_sli_ring *pring;
6829 struct lpfc_dmabuf *buf_ptr;
6830 unsigned long flags = 0;
6833 /* Shutdown the mailbox command sub-system */
6834 lpfc_sli_mbox_sys_shutdown(phba);
6836 lpfc_hba_down_prep(phba);
6838 lpfc_fabric_abort_hba(phba);
6840 spin_lock_irqsave(&phba->hbalock, flags);
6841 for (i = 0; i < psli->num_rings; i++) {
6842 pring = &psli->ring[i];
6843 /* Only slow rings */
6844 if (pring->ringno == LPFC_ELS_RING) {
6845 pring->flag |= LPFC_DEFERRED_RING_EVENT;
6846 /* Set the lpfc data pending flag */
6847 set_bit(LPFC_DATA_READY, &phba->data_flags);
6851 * Error everything on the txq since these iocbs have not been
6852 * given to the FW yet.
6854 list_splice_init(&pring->txq, &completions);
6858 spin_unlock_irqrestore(&phba->hbalock, flags);
6860 /* Cancel all the IOCBs from the completions list */
6861 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
6864 spin_lock_irqsave(&phba->hbalock, flags);
6865 list_splice_init(&phba->elsbuf, &completions);
6866 phba->elsbuf_cnt = 0;
6867 phba->elsbuf_prev_cnt = 0;
6868 spin_unlock_irqrestore(&phba->hbalock, flags);
6870 while (!list_empty(&completions)) {
6871 list_remove_head(&completions, buf_ptr,
6872 struct lpfc_dmabuf, list);
6873 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
6877 /* Return any active mbox cmds */
6878 del_timer_sync(&psli->mbox_tmo);
6880 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
6881 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
6882 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
6888 * lpfc_sli4_hba_down - PCI function resource cleanup for the SLI4 HBA
6889 * @phba: Pointer to HBA context object.
6891 * This function cleans up all queues, iocb, buffers, mailbox commands while
6892 * shutting down the SLI4 HBA FCoE function. This function is called with no
6893 * lock held and always returns 1.
6895 * This function does the following to cleanup driver FCoE function resources:
6896 * - Free discovery resources for each virtual port
6897 * - Cleanup any pending fabric iocbs
6898 * - Iterate through the iocb txq and free each entry in the list.
6899 * - Free up any buffer posted to the HBA.
6900 * - Clean up all the queue entries: WQ, RQ, MQ, EQ, CQ, etc.
6901 * - Free mailbox commands in the mailbox queue.
6904 lpfc_sli4_hba_down(struct lpfc_hba *phba)
6906 /* Stop the SLI4 device port */
6907 lpfc_stop_port(phba);
6909 /* Tear down the queues in the HBA */
6910 lpfc_sli4_queue_unset(phba);
6912 /* unregister default FCFI from the HBA */
6913 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi);
6919 * lpfc_sli_pcimem_bcopy - SLI memory copy function
6920 * @srcp: Source memory pointer.
6921 * @destp: Destination memory pointer.
6922 * @cnt: Number of words required to be copied.
6924 * This function is used for copying data between driver memory
6925 * and the SLI memory. This function also changes the endianness
6926 * of each word if native endianness is different from SLI
6927 * endianness. This function can be called with or without
6931 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
6933 uint32_t *src = srcp;
6934 uint32_t *dest = destp;
6938 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
6940 ldata = le32_to_cpu(ldata);
6949 * lpfc_sli_bemem_bcopy - SLI memory copy function
6950 * @srcp: Source memory pointer.
6951 * @destp: Destination memory pointer.
6952 * @cnt: Number of words required to be copied.
6954 * This function is used for copying data between a data structure
6955 * with big endian representation to local endianness.
6956 * This function can be called with or without lock.
6959 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
6961 uint32_t *src = srcp;
6962 uint32_t *dest = destp;
6966 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
6968 ldata = be32_to_cpu(ldata);
6976 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
6977 * @phba: Pointer to HBA context object.
6978 * @pring: Pointer to driver SLI ring object.
6979 * @mp: Pointer to driver buffer object.
6981 * This function is called with no lock held.
6982 * It always return zero after adding the buffer to the postbufq
6986 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
6987 struct lpfc_dmabuf *mp)
6989 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
6991 spin_lock_irq(&phba->hbalock);
6992 list_add_tail(&mp->list, &pring->postbufq);
6993 pring->postbufq_cnt++;
6994 spin_unlock_irq(&phba->hbalock);
6999 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
7000 * @phba: Pointer to HBA context object.
7002 * When HBQ is enabled, buffers are searched based on tags. This function
7003 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
7004 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
7005 * does not conflict with tags of buffer posted for unsolicited events.
7006 * The function returns the allocated tag. The function is called with
7010 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
7012 spin_lock_irq(&phba->hbalock);
7013 phba->buffer_tag_count++;
7015 * Always set the QUE_BUFTAG_BIT to distiguish between
7016 * a tag assigned by HBQ.
7018 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
7019 spin_unlock_irq(&phba->hbalock);
7020 return phba->buffer_tag_count;
7024 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
7025 * @phba: Pointer to HBA context object.
7026 * @pring: Pointer to driver SLI ring object.
7029 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
7030 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
7031 * iocb is posted to the response ring with the tag of the buffer.
7032 * This function searches the pring->postbufq list using the tag
7033 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
7034 * iocb. If the buffer is found then lpfc_dmabuf object of the
7035 * buffer is returned to the caller else NULL is returned.
7036 * This function is called with no lock held.
7038 struct lpfc_dmabuf *
7039 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7042 struct lpfc_dmabuf *mp, *next_mp;
7043 struct list_head *slp = &pring->postbufq;
7045 /* Search postbufq, from the begining, looking for a match on tag */
7046 spin_lock_irq(&phba->hbalock);
7047 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
7048 if (mp->buffer_tag == tag) {
7049 list_del_init(&mp->list);
7050 pring->postbufq_cnt--;
7051 spin_unlock_irq(&phba->hbalock);
7056 spin_unlock_irq(&phba->hbalock);
7057 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7058 "0402 Cannot find virtual addr for buffer tag on "
7059 "ring %d Data x%lx x%p x%p x%x\n",
7060 pring->ringno, (unsigned long) tag,
7061 slp->next, slp->prev, pring->postbufq_cnt);
7067 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
7068 * @phba: Pointer to HBA context object.
7069 * @pring: Pointer to driver SLI ring object.
7070 * @phys: DMA address of the buffer.
7072 * This function searches the buffer list using the dma_address
7073 * of unsolicited event to find the driver's lpfc_dmabuf object
7074 * corresponding to the dma_address. The function returns the
7075 * lpfc_dmabuf object if a buffer is found else it returns NULL.
7076 * This function is called by the ct and els unsolicited event
7077 * handlers to get the buffer associated with the unsolicited
7080 * This function is called with no lock held.
7082 struct lpfc_dmabuf *
7083 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7086 struct lpfc_dmabuf *mp, *next_mp;
7087 struct list_head *slp = &pring->postbufq;
7089 /* Search postbufq, from the begining, looking for a match on phys */
7090 spin_lock_irq(&phba->hbalock);
7091 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
7092 if (mp->phys == phys) {
7093 list_del_init(&mp->list);
7094 pring->postbufq_cnt--;
7095 spin_unlock_irq(&phba->hbalock);
7100 spin_unlock_irq(&phba->hbalock);
7101 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7102 "0410 Cannot find virtual addr for mapped buf on "
7103 "ring %d Data x%llx x%p x%p x%x\n",
7104 pring->ringno, (unsigned long long)phys,
7105 slp->next, slp->prev, pring->postbufq_cnt);
7110 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
7111 * @phba: Pointer to HBA context object.
7112 * @cmdiocb: Pointer to driver command iocb object.
7113 * @rspiocb: Pointer to driver response iocb object.
7115 * This function is the completion handler for the abort iocbs for
7116 * ELS commands. This function is called from the ELS ring event
7117 * handler with no lock held. This function frees memory resources
7118 * associated with the abort iocb.
7121 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
7122 struct lpfc_iocbq *rspiocb)
7124 IOCB_t *irsp = &rspiocb->iocb;
7125 uint16_t abort_iotag, abort_context;
7126 struct lpfc_iocbq *abort_iocb;
7127 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
7131 if (irsp->ulpStatus) {
7132 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
7133 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
7135 spin_lock_irq(&phba->hbalock);
7136 if (phba->sli_rev < LPFC_SLI_REV4) {
7137 if (abort_iotag != 0 &&
7138 abort_iotag <= phba->sli.last_iotag)
7140 phba->sli.iocbq_lookup[abort_iotag];
7142 /* For sli4 the abort_tag is the XRI,
7143 * so the abort routine puts the iotag of the iocb
7144 * being aborted in the context field of the abort
7147 abort_iocb = phba->sli.iocbq_lookup[abort_context];
7150 * If the iocb is not found in Firmware queue the iocb
7151 * might have completed already. Do not free it again.
7153 if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
7154 if (irsp->un.ulpWord[4] != IOERR_NO_XRI) {
7155 spin_unlock_irq(&phba->hbalock);
7156 lpfc_sli_release_iocbq(phba, cmdiocb);
7159 /* For SLI4 the ulpContext field for abort IOCB
7160 * holds the iotag of the IOCB being aborted so
7161 * the local abort_context needs to be reset to
7162 * match the aborted IOCBs ulpContext.
7164 if (abort_iocb && phba->sli_rev == LPFC_SLI_REV4)
7165 abort_context = abort_iocb->iocb.ulpContext;
7168 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
7169 "0327 Cannot abort els iocb %p "
7170 "with tag %x context %x, abort status %x, "
7172 abort_iocb, abort_iotag, abort_context,
7173 irsp->ulpStatus, irsp->un.ulpWord[4]);
7175 * make sure we have the right iocbq before taking it
7176 * off the txcmplq and try to call completion routine.
7179 abort_iocb->iocb.ulpContext != abort_context ||
7180 (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0)
7181 spin_unlock_irq(&phba->hbalock);
7182 else if (phba->sli_rev < LPFC_SLI_REV4) {
7184 * leave the SLI4 aborted command on the txcmplq
7185 * list and the command complete WCQE's XB bit
7186 * will tell whether the SGL (XRI) can be released
7187 * immediately or to the aborted SGL list for the
7188 * following abort XRI from the HBA.
7190 list_del_init(&abort_iocb->list);
7191 if (abort_iocb->iocb_flag & LPFC_IO_ON_Q) {
7192 abort_iocb->iocb_flag &= ~LPFC_IO_ON_Q;
7193 pring->txcmplq_cnt--;
7196 /* Firmware could still be in progress of DMAing
7197 * payload, so don't free data buffer till after
7200 abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE;
7201 abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED;
7202 spin_unlock_irq(&phba->hbalock);
7204 abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
7205 abort_iocb->iocb.un.ulpWord[4] = IOERR_ABORT_REQUESTED;
7206 (abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb);
7208 spin_unlock_irq(&phba->hbalock);
7211 lpfc_sli_release_iocbq(phba, cmdiocb);
7216 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
7217 * @phba: Pointer to HBA context object.
7218 * @cmdiocb: Pointer to driver command iocb object.
7219 * @rspiocb: Pointer to driver response iocb object.
7221 * The function is called from SLI ring event handler with no
7222 * lock held. This function is the completion handler for ELS commands
7223 * which are aborted. The function frees memory resources used for
7224 * the aborted ELS commands.
7227 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
7228 struct lpfc_iocbq *rspiocb)
7230 IOCB_t *irsp = &rspiocb->iocb;
7232 /* ELS cmd tag <ulpIoTag> completes */
7233 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
7234 "0139 Ignoring ELS cmd tag x%x completion Data: "
7236 irsp->ulpIoTag, irsp->ulpStatus,
7237 irsp->un.ulpWord[4], irsp->ulpTimeout);
7238 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
7239 lpfc_ct_free_iocb(phba, cmdiocb);
7241 lpfc_els_free_iocb(phba, cmdiocb);
7246 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
7247 * @phba: Pointer to HBA context object.
7248 * @pring: Pointer to driver SLI ring object.
7249 * @cmdiocb: Pointer to driver command iocb object.
7251 * This function issues an abort iocb for the provided command
7252 * iocb. This function is called with hbalock held.
7253 * The function returns 0 when it fails due to memory allocation
7254 * failure or when the command iocb is an abort request.
7257 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7258 struct lpfc_iocbq *cmdiocb)
7260 struct lpfc_vport *vport = cmdiocb->vport;
7261 struct lpfc_iocbq *abtsiocbp;
7262 IOCB_t *icmd = NULL;
7263 IOCB_t *iabt = NULL;
7264 int retval = IOCB_ERROR;
7267 * There are certain command types we don't want to abort. And we
7268 * don't want to abort commands that are already in the process of
7271 icmd = &cmdiocb->iocb;
7272 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
7273 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
7274 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
7277 /* If we're unloading, don't abort iocb on the ELS ring, but change the
7278 * callback so that nothing happens when it finishes.
7280 if ((vport->load_flag & FC_UNLOADING) &&
7281 (pring->ringno == LPFC_ELS_RING)) {
7282 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
7283 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
7285 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
7286 goto abort_iotag_exit;
7289 /* issue ABTS for this IOCB based on iotag */
7290 abtsiocbp = __lpfc_sli_get_iocbq(phba);
7291 if (abtsiocbp == NULL)
7294 /* This signals the response to set the correct status
7295 * before calling the completion handler
7297 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
7299 iabt = &abtsiocbp->iocb;
7300 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
7301 iabt->un.acxri.abortContextTag = icmd->ulpContext;
7302 if (phba->sli_rev == LPFC_SLI_REV4) {
7303 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
7304 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
7307 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
7309 iabt->ulpClass = icmd->ulpClass;
7311 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7312 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
7313 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
7314 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
7316 if (phba->link_state >= LPFC_LINK_UP)
7317 iabt->ulpCommand = CMD_ABORT_XRI_CN;
7319 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
7321 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
7323 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
7324 "0339 Abort xri x%x, original iotag x%x, "
7325 "abort cmd iotag x%x\n",
7326 iabt->un.acxri.abortIoTag,
7327 iabt->un.acxri.abortContextTag,
7329 retval = __lpfc_sli_issue_iocb(phba, pring->ringno, abtsiocbp, 0);
7332 __lpfc_sli_release_iocbq(phba, abtsiocbp);
7335 * Caller to this routine should check for IOCB_ERROR
7336 * and handle it properly. This routine no longer removes
7337 * iocb off txcmplq and call compl in case of IOCB_ERROR.
7343 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
7344 * @iocbq: Pointer to driver iocb object.
7345 * @vport: Pointer to driver virtual port object.
7346 * @tgt_id: SCSI ID of the target.
7347 * @lun_id: LUN ID of the scsi device.
7348 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
7350 * This function acts as an iocb filter for functions which abort or count
7351 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
7352 * 0 if the filtering criteria is met for the given iocb and will return
7353 * 1 if the filtering criteria is not met.
7354 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
7355 * given iocb is for the SCSI device specified by vport, tgt_id and
7357 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
7358 * given iocb is for the SCSI target specified by vport and tgt_id
7360 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
7361 * given iocb is for the SCSI host associated with the given vport.
7362 * This function is called with no locks held.
7365 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
7366 uint16_t tgt_id, uint64_t lun_id,
7367 lpfc_ctx_cmd ctx_cmd)
7369 struct lpfc_scsi_buf *lpfc_cmd;
7372 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
7375 if (iocbq->vport != vport)
7378 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
7380 if (lpfc_cmd->pCmd == NULL)
7385 if ((lpfc_cmd->rdata->pnode) &&
7386 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
7387 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
7391 if ((lpfc_cmd->rdata->pnode) &&
7392 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
7399 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
7408 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
7409 * @vport: Pointer to virtual port.
7410 * @tgt_id: SCSI ID of the target.
7411 * @lun_id: LUN ID of the scsi device.
7412 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7414 * This function returns number of FCP commands pending for the vport.
7415 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
7416 * commands pending on the vport associated with SCSI device specified
7417 * by tgt_id and lun_id parameters.
7418 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
7419 * commands pending on the vport associated with SCSI target specified
7420 * by tgt_id parameter.
7421 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
7422 * commands pending on the vport.
7423 * This function returns the number of iocbs which satisfy the filter.
7424 * This function is called without any lock held.
7427 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
7428 lpfc_ctx_cmd ctx_cmd)
7430 struct lpfc_hba *phba = vport->phba;
7431 struct lpfc_iocbq *iocbq;
7434 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
7435 iocbq = phba->sli.iocbq_lookup[i];
7437 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
7446 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
7447 * @phba: Pointer to HBA context object
7448 * @cmdiocb: Pointer to command iocb object.
7449 * @rspiocb: Pointer to response iocb object.
7451 * This function is called when an aborted FCP iocb completes. This
7452 * function is called by the ring event handler with no lock held.
7453 * This function frees the iocb.
7456 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
7457 struct lpfc_iocbq *rspiocb)
7459 lpfc_sli_release_iocbq(phba, cmdiocb);
7464 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
7465 * @vport: Pointer to virtual port.
7466 * @pring: Pointer to driver SLI ring object.
7467 * @tgt_id: SCSI ID of the target.
7468 * @lun_id: LUN ID of the scsi device.
7469 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7471 * This function sends an abort command for every SCSI command
7472 * associated with the given virtual port pending on the ring
7473 * filtered by lpfc_sli_validate_fcp_iocb function.
7474 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
7475 * FCP iocbs associated with lun specified by tgt_id and lun_id
7477 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
7478 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
7479 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
7480 * FCP iocbs associated with virtual port.
7481 * This function returns number of iocbs it failed to abort.
7482 * This function is called with no locks held.
7485 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
7486 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
7488 struct lpfc_hba *phba = vport->phba;
7489 struct lpfc_iocbq *iocbq;
7490 struct lpfc_iocbq *abtsiocb;
7492 int errcnt = 0, ret_val = 0;
7495 for (i = 1; i <= phba->sli.last_iotag; i++) {
7496 iocbq = phba->sli.iocbq_lookup[i];
7498 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
7502 /* issue ABTS for this IOCB based on iotag */
7503 abtsiocb = lpfc_sli_get_iocbq(phba);
7504 if (abtsiocb == NULL) {
7510 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
7511 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
7512 if (phba->sli_rev == LPFC_SLI_REV4)
7513 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
7515 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
7516 abtsiocb->iocb.ulpLe = 1;
7517 abtsiocb->iocb.ulpClass = cmd->ulpClass;
7518 abtsiocb->vport = phba->pport;
7520 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7521 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
7522 if (iocbq->iocb_flag & LPFC_IO_FCP)
7523 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
7525 if (lpfc_is_link_up(phba))
7526 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
7528 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
7530 /* Setup callback routine and issue the command. */
7531 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
7532 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
7534 if (ret_val == IOCB_ERROR) {
7535 lpfc_sli_release_iocbq(phba, abtsiocb);
7545 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
7546 * @phba: Pointer to HBA context object.
7547 * @cmdiocbq: Pointer to command iocb.
7548 * @rspiocbq: Pointer to response iocb.
7550 * This function is the completion handler for iocbs issued using
7551 * lpfc_sli_issue_iocb_wait function. This function is called by the
7552 * ring event handler function without any lock held. This function
7553 * can be called from both worker thread context and interrupt
7554 * context. This function also can be called from other thread which
7555 * cleans up the SLI layer objects.
7556 * This function copy the contents of the response iocb to the
7557 * response iocb memory object provided by the caller of
7558 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
7559 * sleeps for the iocb completion.
7562 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
7563 struct lpfc_iocbq *cmdiocbq,
7564 struct lpfc_iocbq *rspiocbq)
7566 wait_queue_head_t *pdone_q;
7567 unsigned long iflags;
7568 struct lpfc_scsi_buf *lpfc_cmd;
7570 spin_lock_irqsave(&phba->hbalock, iflags);
7571 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
7572 if (cmdiocbq->context2 && rspiocbq)
7573 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
7574 &rspiocbq->iocb, sizeof(IOCB_t));
7576 /* Set the exchange busy flag for task management commands */
7577 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
7578 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
7579 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
7581 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
7584 pdone_q = cmdiocbq->context_un.wait_queue;
7587 spin_unlock_irqrestore(&phba->hbalock, iflags);
7592 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
7593 * @phba: Pointer to HBA context object..
7594 * @piocbq: Pointer to command iocb.
7595 * @flag: Flag to test.
7597 * This routine grabs the hbalock and then test the iocb_flag to
7598 * see if the passed in flag is set.
7601 * 0 if flag is not set.
7604 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
7605 struct lpfc_iocbq *piocbq, uint32_t flag)
7607 unsigned long iflags;
7610 spin_lock_irqsave(&phba->hbalock, iflags);
7611 ret = piocbq->iocb_flag & flag;
7612 spin_unlock_irqrestore(&phba->hbalock, iflags);
7618 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
7619 * @phba: Pointer to HBA context object..
7620 * @pring: Pointer to sli ring.
7621 * @piocb: Pointer to command iocb.
7622 * @prspiocbq: Pointer to response iocb.
7623 * @timeout: Timeout in number of seconds.
7625 * This function issues the iocb to firmware and waits for the
7626 * iocb to complete. If the iocb command is not
7627 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
7628 * Caller should not free the iocb resources if this function
7629 * returns IOCB_TIMEDOUT.
7630 * The function waits for the iocb completion using an
7631 * non-interruptible wait.
7632 * This function will sleep while waiting for iocb completion.
7633 * So, this function should not be called from any context which
7634 * does not allow sleeping. Due to the same reason, this function
7635 * cannot be called with interrupt disabled.
7636 * This function assumes that the iocb completions occur while
7637 * this function sleep. So, this function cannot be called from
7638 * the thread which process iocb completion for this ring.
7639 * This function clears the iocb_flag of the iocb object before
7640 * issuing the iocb and the iocb completion handler sets this
7641 * flag and wakes this thread when the iocb completes.
7642 * The contents of the response iocb will be copied to prspiocbq
7643 * by the completion handler when the command completes.
7644 * This function returns IOCB_SUCCESS when success.
7645 * This function is called with no lock held.
7648 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
7649 uint32_t ring_number,
7650 struct lpfc_iocbq *piocb,
7651 struct lpfc_iocbq *prspiocbq,
7654 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
7655 long timeleft, timeout_req = 0;
7656 int retval = IOCB_SUCCESS;
7658 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
7660 * If the caller has provided a response iocbq buffer, then context2
7661 * is NULL or its an error.
7664 if (piocb->context2)
7666 piocb->context2 = prspiocbq;
7669 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
7670 piocb->context_un.wait_queue = &done_q;
7671 piocb->iocb_flag &= ~LPFC_IO_WAKE;
7673 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7674 creg_val = readl(phba->HCregaddr);
7675 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
7676 writel(creg_val, phba->HCregaddr);
7677 readl(phba->HCregaddr); /* flush */
7680 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
7682 if (retval == IOCB_SUCCESS) {
7683 timeout_req = timeout * HZ;
7684 timeleft = wait_event_timeout(done_q,
7685 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
7688 if (piocb->iocb_flag & LPFC_IO_WAKE) {
7689 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7690 "0331 IOCB wake signaled\n");
7691 } else if (timeleft == 0) {
7692 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7693 "0338 IOCB wait timeout error - no "
7694 "wake response Data x%x\n", timeout);
7695 retval = IOCB_TIMEDOUT;
7697 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7698 "0330 IOCB wake NOT set, "
7700 timeout, (timeleft / jiffies));
7701 retval = IOCB_TIMEDOUT;
7703 } else if (retval == IOCB_BUSY) {
7704 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7705 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
7706 phba->iocb_cnt, pring->txq_cnt, pring->txcmplq_cnt);
7709 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7710 "0332 IOCB wait issue failed, Data x%x\n",
7712 retval = IOCB_ERROR;
7715 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7716 creg_val = readl(phba->HCregaddr);
7717 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
7718 writel(creg_val, phba->HCregaddr);
7719 readl(phba->HCregaddr); /* flush */
7723 piocb->context2 = NULL;
7725 piocb->context_un.wait_queue = NULL;
7726 piocb->iocb_cmpl = NULL;
7731 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
7732 * @phba: Pointer to HBA context object.
7733 * @pmboxq: Pointer to driver mailbox object.
7734 * @timeout: Timeout in number of seconds.
7736 * This function issues the mailbox to firmware and waits for the
7737 * mailbox command to complete. If the mailbox command is not
7738 * completed within timeout seconds, it returns MBX_TIMEOUT.
7739 * The function waits for the mailbox completion using an
7740 * interruptible wait. If the thread is woken up due to a
7741 * signal, MBX_TIMEOUT error is returned to the caller. Caller
7742 * should not free the mailbox resources, if this function returns
7744 * This function will sleep while waiting for mailbox completion.
7745 * So, this function should not be called from any context which
7746 * does not allow sleeping. Due to the same reason, this function
7747 * cannot be called with interrupt disabled.
7748 * This function assumes that the mailbox completion occurs while
7749 * this function sleep. So, this function cannot be called from
7750 * the worker thread which processes mailbox completion.
7751 * This function is called in the context of HBA management
7753 * This function returns MBX_SUCCESS when successful.
7754 * This function is called with no lock held.
7757 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
7760 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
7764 /* The caller must leave context1 empty. */
7765 if (pmboxq->context1)
7766 return MBX_NOT_FINISHED;
7768 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
7769 /* setup wake call as IOCB callback */
7770 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
7771 /* setup context field to pass wait_queue pointer to wake function */
7772 pmboxq->context1 = &done_q;
7774 /* now issue the command */
7775 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
7777 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
7778 wait_event_interruptible_timeout(done_q,
7779 pmboxq->mbox_flag & LPFC_MBX_WAKE,
7782 spin_lock_irqsave(&phba->hbalock, flag);
7783 pmboxq->context1 = NULL;
7785 * if LPFC_MBX_WAKE flag is set the mailbox is completed
7786 * else do not free the resources.
7788 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
7789 retval = MBX_SUCCESS;
7790 lpfc_sli4_swap_str(phba, pmboxq);
7792 retval = MBX_TIMEOUT;
7793 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
7795 spin_unlock_irqrestore(&phba->hbalock, flag);
7802 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
7803 * @phba: Pointer to HBA context.
7805 * This function is called to shutdown the driver's mailbox sub-system.
7806 * It first marks the mailbox sub-system is in a block state to prevent
7807 * the asynchronous mailbox command from issued off the pending mailbox
7808 * command queue. If the mailbox command sub-system shutdown is due to
7809 * HBA error conditions such as EEH or ERATT, this routine shall invoke
7810 * the mailbox sub-system flush routine to forcefully bring down the
7811 * mailbox sub-system. Otherwise, if it is due to normal condition (such
7812 * as with offline or HBA function reset), this routine will wait for the
7813 * outstanding mailbox command to complete before invoking the mailbox
7814 * sub-system flush routine to gracefully bring down mailbox sub-system.
7817 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba)
7819 struct lpfc_sli *psli = &phba->sli;
7820 uint8_t actcmd = MBX_HEARTBEAT;
7821 unsigned long timeout;
7823 spin_lock_irq(&phba->hbalock);
7824 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7825 spin_unlock_irq(&phba->hbalock);
7827 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7828 spin_lock_irq(&phba->hbalock);
7829 if (phba->sli.mbox_active)
7830 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
7831 spin_unlock_irq(&phba->hbalock);
7832 /* Determine how long we might wait for the active mailbox
7833 * command to be gracefully completed by firmware.
7835 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) *
7837 while (phba->sli.mbox_active) {
7838 /* Check active mailbox complete status every 2ms */
7840 if (time_after(jiffies, timeout))
7841 /* Timeout, let the mailbox flush routine to
7842 * forcefully release active mailbox command
7847 lpfc_sli_mbox_sys_flush(phba);
7851 * lpfc_sli_eratt_read - read sli-3 error attention events
7852 * @phba: Pointer to HBA context.
7854 * This function is called to read the SLI3 device error attention registers
7855 * for possible error attention events. The caller must hold the hostlock
7856 * with spin_lock_irq().
7858 * This fucntion returns 1 when there is Error Attention in the Host Attention
7859 * Register and returns 0 otherwise.
7862 lpfc_sli_eratt_read(struct lpfc_hba *phba)
7866 /* Read chip Host Attention (HA) register */
7867 ha_copy = readl(phba->HAregaddr);
7868 if (ha_copy & HA_ERATT) {
7869 /* Read host status register to retrieve error event */
7870 lpfc_sli_read_hs(phba);
7872 /* Check if there is a deferred error condition is active */
7873 if ((HS_FFER1 & phba->work_hs) &&
7874 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
7875 HS_FFER6 | HS_FFER7) & phba->work_hs)) {
7876 phba->hba_flag |= DEFER_ERATT;
7877 /* Clear all interrupt enable conditions */
7878 writel(0, phba->HCregaddr);
7879 readl(phba->HCregaddr);
7882 /* Set the driver HA work bitmap */
7883 phba->work_ha |= HA_ERATT;
7884 /* Indicate polling handles this ERATT */
7885 phba->hba_flag |= HBA_ERATT_HANDLED;
7892 * lpfc_sli4_eratt_read - read sli-4 error attention events
7893 * @phba: Pointer to HBA context.
7895 * This function is called to read the SLI4 device error attention registers
7896 * for possible error attention events. The caller must hold the hostlock
7897 * with spin_lock_irq().
7899 * This fucntion returns 1 when there is Error Attention in the Host Attention
7900 * Register and returns 0 otherwise.
7903 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
7905 uint32_t uerr_sta_hi, uerr_sta_lo;
7907 /* For now, use the SLI4 device internal unrecoverable error
7908 * registers for error attention. This can be changed later.
7910 uerr_sta_lo = readl(phba->sli4_hba.UERRLOregaddr);
7911 uerr_sta_hi = readl(phba->sli4_hba.UERRHIregaddr);
7912 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
7913 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
7914 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7915 "1423 HBA Unrecoverable error: "
7916 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
7917 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
7918 uerr_sta_lo, uerr_sta_hi,
7919 phba->sli4_hba.ue_mask_lo,
7920 phba->sli4_hba.ue_mask_hi);
7921 phba->work_status[0] = uerr_sta_lo;
7922 phba->work_status[1] = uerr_sta_hi;
7923 /* Set the driver HA work bitmap */
7924 phba->work_ha |= HA_ERATT;
7925 /* Indicate polling handles this ERATT */
7926 phba->hba_flag |= HBA_ERATT_HANDLED;
7933 * lpfc_sli_check_eratt - check error attention events
7934 * @phba: Pointer to HBA context.
7936 * This function is called from timer soft interrupt context to check HBA's
7937 * error attention register bit for error attention events.
7939 * This fucntion returns 1 when there is Error Attention in the Host Attention
7940 * Register and returns 0 otherwise.
7943 lpfc_sli_check_eratt(struct lpfc_hba *phba)
7947 /* If somebody is waiting to handle an eratt, don't process it
7948 * here. The brdkill function will do this.
7950 if (phba->link_flag & LS_IGNORE_ERATT)
7953 /* Check if interrupt handler handles this ERATT */
7954 spin_lock_irq(&phba->hbalock);
7955 if (phba->hba_flag & HBA_ERATT_HANDLED) {
7956 /* Interrupt handler has handled ERATT */
7957 spin_unlock_irq(&phba->hbalock);
7962 * If there is deferred error attention, do not check for error
7965 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
7966 spin_unlock_irq(&phba->hbalock);
7970 /* If PCI channel is offline, don't process it */
7971 if (unlikely(pci_channel_offline(phba->pcidev))) {
7972 spin_unlock_irq(&phba->hbalock);
7976 switch (phba->sli_rev) {
7979 /* Read chip Host Attention (HA) register */
7980 ha_copy = lpfc_sli_eratt_read(phba);
7983 /* Read devcie Uncoverable Error (UERR) registers */
7984 ha_copy = lpfc_sli4_eratt_read(phba);
7987 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7988 "0299 Invalid SLI revision (%d)\n",
7993 spin_unlock_irq(&phba->hbalock);
7999 * lpfc_intr_state_check - Check device state for interrupt handling
8000 * @phba: Pointer to HBA context.
8002 * This inline routine checks whether a device or its PCI slot is in a state
8003 * that the interrupt should be handled.
8005 * This function returns 0 if the device or the PCI slot is in a state that
8006 * interrupt should be handled, otherwise -EIO.
8009 lpfc_intr_state_check(struct lpfc_hba *phba)
8011 /* If the pci channel is offline, ignore all the interrupts */
8012 if (unlikely(pci_channel_offline(phba->pcidev)))
8015 /* Update device level interrupt statistics */
8016 phba->sli.slistat.sli_intr++;
8018 /* Ignore all interrupts during initialization. */
8019 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
8026 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
8027 * @irq: Interrupt number.
8028 * @dev_id: The device context pointer.
8030 * This function is directly called from the PCI layer as an interrupt
8031 * service routine when device with SLI-3 interface spec is enabled with
8032 * MSI-X multi-message interrupt mode and there are slow-path events in
8033 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
8034 * interrupt mode, this function is called as part of the device-level
8035 * interrupt handler. When the PCI slot is in error recovery or the HBA
8036 * is undergoing initialization, the interrupt handler will not process
8037 * the interrupt. The link attention and ELS ring attention events are
8038 * handled by the worker thread. The interrupt handler signals the worker
8039 * thread and returns for these events. This function is called without
8040 * any lock held. It gets the hbalock to access and update SLI data
8043 * This function returns IRQ_HANDLED when interrupt is handled else it
8047 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
8049 struct lpfc_hba *phba;
8050 uint32_t ha_copy, hc_copy;
8051 uint32_t work_ha_copy;
8052 unsigned long status;
8053 unsigned long iflag;
8056 MAILBOX_t *mbox, *pmbox;
8057 struct lpfc_vport *vport;
8058 struct lpfc_nodelist *ndlp;
8059 struct lpfc_dmabuf *mp;
8064 * Get the driver's phba structure from the dev_id and
8065 * assume the HBA is not interrupting.
8067 phba = (struct lpfc_hba *)dev_id;
8069 if (unlikely(!phba))
8073 * Stuff needs to be attented to when this function is invoked as an
8074 * individual interrupt handler in MSI-X multi-message interrupt mode
8076 if (phba->intr_type == MSIX) {
8077 /* Check device state for handling interrupt */
8078 if (lpfc_intr_state_check(phba))
8080 /* Need to read HA REG for slow-path events */
8081 spin_lock_irqsave(&phba->hbalock, iflag);
8082 ha_copy = readl(phba->HAregaddr);
8083 /* If somebody is waiting to handle an eratt don't process it
8084 * here. The brdkill function will do this.
8086 if (phba->link_flag & LS_IGNORE_ERATT)
8087 ha_copy &= ~HA_ERATT;
8088 /* Check the need for handling ERATT in interrupt handler */
8089 if (ha_copy & HA_ERATT) {
8090 if (phba->hba_flag & HBA_ERATT_HANDLED)
8091 /* ERATT polling has handled ERATT */
8092 ha_copy &= ~HA_ERATT;
8094 /* Indicate interrupt handler handles ERATT */
8095 phba->hba_flag |= HBA_ERATT_HANDLED;
8099 * If there is deferred error attention, do not check for any
8102 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
8103 spin_unlock_irqrestore(&phba->hbalock, iflag);
8107 /* Clear up only attention source related to slow-path */
8108 hc_copy = readl(phba->HCregaddr);
8109 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
8110 HC_LAINT_ENA | HC_ERINT_ENA),
8112 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
8114 writel(hc_copy, phba->HCregaddr);
8115 readl(phba->HAregaddr); /* flush */
8116 spin_unlock_irqrestore(&phba->hbalock, iflag);
8118 ha_copy = phba->ha_copy;
8120 work_ha_copy = ha_copy & phba->work_ha_mask;
8123 if (work_ha_copy & HA_LATT) {
8124 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
8126 * Turn off Link Attention interrupts
8127 * until CLEAR_LA done
8129 spin_lock_irqsave(&phba->hbalock, iflag);
8130 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
8131 control = readl(phba->HCregaddr);
8132 control &= ~HC_LAINT_ENA;
8133 writel(control, phba->HCregaddr);
8134 readl(phba->HCregaddr); /* flush */
8135 spin_unlock_irqrestore(&phba->hbalock, iflag);
8138 work_ha_copy &= ~HA_LATT;
8141 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
8143 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
8144 * the only slow ring.
8146 status = (work_ha_copy &
8147 (HA_RXMASK << (4*LPFC_ELS_RING)));
8148 status >>= (4*LPFC_ELS_RING);
8149 if (status & HA_RXMASK) {
8150 spin_lock_irqsave(&phba->hbalock, iflag);
8151 control = readl(phba->HCregaddr);
8153 lpfc_debugfs_slow_ring_trc(phba,
8154 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
8156 (uint32_t)phba->sli.slistat.sli_intr);
8158 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
8159 lpfc_debugfs_slow_ring_trc(phba,
8161 "pwork:x%x hawork:x%x wait:x%x",
8162 phba->work_ha, work_ha_copy,
8163 (uint32_t)((unsigned long)
8164 &phba->work_waitq));
8167 ~(HC_R0INT_ENA << LPFC_ELS_RING);
8168 writel(control, phba->HCregaddr);
8169 readl(phba->HCregaddr); /* flush */
8172 lpfc_debugfs_slow_ring_trc(phba,
8173 "ISR slow ring: pwork:"
8174 "x%x hawork:x%x wait:x%x",
8175 phba->work_ha, work_ha_copy,
8176 (uint32_t)((unsigned long)
8177 &phba->work_waitq));
8179 spin_unlock_irqrestore(&phba->hbalock, iflag);
8182 spin_lock_irqsave(&phba->hbalock, iflag);
8183 if (work_ha_copy & HA_ERATT) {
8184 lpfc_sli_read_hs(phba);
8186 * Check if there is a deferred error condition
8189 if ((HS_FFER1 & phba->work_hs) &&
8190 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
8191 HS_FFER6 | HS_FFER7) & phba->work_hs)) {
8192 phba->hba_flag |= DEFER_ERATT;
8193 /* Clear all interrupt enable conditions */
8194 writel(0, phba->HCregaddr);
8195 readl(phba->HCregaddr);
8199 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
8200 pmb = phba->sli.mbox_active;
8205 /* First check out the status word */
8206 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
8207 if (pmbox->mbxOwner != OWN_HOST) {
8208 spin_unlock_irqrestore(&phba->hbalock, iflag);
8210 * Stray Mailbox Interrupt, mbxCommand <cmd>
8211 * mbxStatus <status>
8213 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
8215 "(%d):0304 Stray Mailbox "
8216 "Interrupt mbxCommand x%x "
8218 (vport ? vport->vpi : 0),
8221 /* clear mailbox attention bit */
8222 work_ha_copy &= ~HA_MBATT;
8224 phba->sli.mbox_active = NULL;
8225 spin_unlock_irqrestore(&phba->hbalock, iflag);
8226 phba->last_completion_time = jiffies;
8227 del_timer(&phba->sli.mbox_tmo);
8228 if (pmb->mbox_cmpl) {
8229 lpfc_sli_pcimem_bcopy(mbox, pmbox,
8231 if (pmb->out_ext_byte_len &&
8233 lpfc_sli_pcimem_bcopy(
8236 pmb->out_ext_byte_len);
8238 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
8239 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
8241 lpfc_debugfs_disc_trc(vport,
8242 LPFC_DISC_TRC_MBOX_VPORT,
8244 "status:x%x rpi:x%x",
8245 (uint32_t)pmbox->mbxStatus,
8246 pmbox->un.varWords[0], 0);
8248 if (!pmbox->mbxStatus) {
8249 mp = (struct lpfc_dmabuf *)
8251 ndlp = (struct lpfc_nodelist *)
8254 /* Reg_LOGIN of dflt RPI was
8255 * successful. new lets get
8256 * rid of the RPI using the
8259 lpfc_unreg_login(phba,
8261 pmbox->un.varWords[0],
8264 lpfc_mbx_cmpl_dflt_rpi;
8266 pmb->context2 = ndlp;
8268 rc = lpfc_sli_issue_mbox(phba,
8272 lpfc_printf_log(phba,
8275 "0350 rc should have"
8277 if (rc != MBX_NOT_FINISHED)
8278 goto send_current_mbox;
8282 &phba->pport->work_port_lock,
8284 phba->pport->work_port_events &=
8286 spin_unlock_irqrestore(
8287 &phba->pport->work_port_lock,
8289 lpfc_mbox_cmpl_put(phba, pmb);
8292 spin_unlock_irqrestore(&phba->hbalock, iflag);
8294 if ((work_ha_copy & HA_MBATT) &&
8295 (phba->sli.mbox_active == NULL)) {
8297 /* Process next mailbox command if there is one */
8299 rc = lpfc_sli_issue_mbox(phba, NULL,
8301 } while (rc == MBX_NOT_FINISHED);
8302 if (rc != MBX_SUCCESS)
8303 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
8304 LOG_SLI, "0349 rc should be "
8308 spin_lock_irqsave(&phba->hbalock, iflag);
8309 phba->work_ha |= work_ha_copy;
8310 spin_unlock_irqrestore(&phba->hbalock, iflag);
8311 lpfc_worker_wake_up(phba);
8315 } /* lpfc_sli_sp_intr_handler */
8318 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
8319 * @irq: Interrupt number.
8320 * @dev_id: The device context pointer.
8322 * This function is directly called from the PCI layer as an interrupt
8323 * service routine when device with SLI-3 interface spec is enabled with
8324 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
8325 * ring event in the HBA. However, when the device is enabled with either
8326 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
8327 * device-level interrupt handler. When the PCI slot is in error recovery
8328 * or the HBA is undergoing initialization, the interrupt handler will not
8329 * process the interrupt. The SCSI FCP fast-path ring event are handled in
8330 * the intrrupt context. This function is called without any lock held.
8331 * It gets the hbalock to access and update SLI data structures.
8333 * This function returns IRQ_HANDLED when interrupt is handled else it
8337 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
8339 struct lpfc_hba *phba;
8341 unsigned long status;
8342 unsigned long iflag;
8344 /* Get the driver's phba structure from the dev_id and
8345 * assume the HBA is not interrupting.
8347 phba = (struct lpfc_hba *) dev_id;
8349 if (unlikely(!phba))
8353 * Stuff needs to be attented to when this function is invoked as an
8354 * individual interrupt handler in MSI-X multi-message interrupt mode
8356 if (phba->intr_type == MSIX) {
8357 /* Check device state for handling interrupt */
8358 if (lpfc_intr_state_check(phba))
8360 /* Need to read HA REG for FCP ring and other ring events */
8361 ha_copy = readl(phba->HAregaddr);
8362 /* Clear up only attention source related to fast-path */
8363 spin_lock_irqsave(&phba->hbalock, iflag);
8365 * If there is deferred error attention, do not check for
8368 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
8369 spin_unlock_irqrestore(&phba->hbalock, iflag);
8372 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
8374 readl(phba->HAregaddr); /* flush */
8375 spin_unlock_irqrestore(&phba->hbalock, iflag);
8377 ha_copy = phba->ha_copy;
8380 * Process all events on FCP ring. Take the optimized path for FCP IO.
8382 ha_copy &= ~(phba->work_ha_mask);
8384 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
8385 status >>= (4*LPFC_FCP_RING);
8386 if (status & HA_RXMASK)
8387 lpfc_sli_handle_fast_ring_event(phba,
8388 &phba->sli.ring[LPFC_FCP_RING],
8391 if (phba->cfg_multi_ring_support == 2) {
8393 * Process all events on extra ring. Take the optimized path
8394 * for extra ring IO.
8396 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
8397 status >>= (4*LPFC_EXTRA_RING);
8398 if (status & HA_RXMASK) {
8399 lpfc_sli_handle_fast_ring_event(phba,
8400 &phba->sli.ring[LPFC_EXTRA_RING],
8405 } /* lpfc_sli_fp_intr_handler */
8408 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
8409 * @irq: Interrupt number.
8410 * @dev_id: The device context pointer.
8412 * This function is the HBA device-level interrupt handler to device with
8413 * SLI-3 interface spec, called from the PCI layer when either MSI or
8414 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
8415 * requires driver attention. This function invokes the slow-path interrupt
8416 * attention handling function and fast-path interrupt attention handling
8417 * function in turn to process the relevant HBA attention events. This
8418 * function is called without any lock held. It gets the hbalock to access
8419 * and update SLI data structures.
8421 * This function returns IRQ_HANDLED when interrupt is handled, else it
8425 lpfc_sli_intr_handler(int irq, void *dev_id)
8427 struct lpfc_hba *phba;
8428 irqreturn_t sp_irq_rc, fp_irq_rc;
8429 unsigned long status1, status2;
8433 * Get the driver's phba structure from the dev_id and
8434 * assume the HBA is not interrupting.
8436 phba = (struct lpfc_hba *) dev_id;
8438 if (unlikely(!phba))
8441 /* Check device state for handling interrupt */
8442 if (lpfc_intr_state_check(phba))
8445 spin_lock(&phba->hbalock);
8446 phba->ha_copy = readl(phba->HAregaddr);
8447 if (unlikely(!phba->ha_copy)) {
8448 spin_unlock(&phba->hbalock);
8450 } else if (phba->ha_copy & HA_ERATT) {
8451 if (phba->hba_flag & HBA_ERATT_HANDLED)
8452 /* ERATT polling has handled ERATT */
8453 phba->ha_copy &= ~HA_ERATT;
8455 /* Indicate interrupt handler handles ERATT */
8456 phba->hba_flag |= HBA_ERATT_HANDLED;
8460 * If there is deferred error attention, do not check for any interrupt.
8462 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
8463 spin_unlock_irq(&phba->hbalock);
8467 /* Clear attention sources except link and error attentions */
8468 hc_copy = readl(phba->HCregaddr);
8469 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
8470 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
8472 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
8473 writel(hc_copy, phba->HCregaddr);
8474 readl(phba->HAregaddr); /* flush */
8475 spin_unlock(&phba->hbalock);
8478 * Invokes slow-path host attention interrupt handling as appropriate.
8481 /* status of events with mailbox and link attention */
8482 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
8484 /* status of events with ELS ring */
8485 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
8486 status2 >>= (4*LPFC_ELS_RING);
8488 if (status1 || (status2 & HA_RXMASK))
8489 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
8491 sp_irq_rc = IRQ_NONE;
8494 * Invoke fast-path host attention interrupt handling as appropriate.
8497 /* status of events with FCP ring */
8498 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
8499 status1 >>= (4*LPFC_FCP_RING);
8501 /* status of events with extra ring */
8502 if (phba->cfg_multi_ring_support == 2) {
8503 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
8504 status2 >>= (4*LPFC_EXTRA_RING);
8508 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
8509 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
8511 fp_irq_rc = IRQ_NONE;
8513 /* Return device-level interrupt handling status */
8514 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
8515 } /* lpfc_sli_intr_handler */
8518 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
8519 * @phba: pointer to lpfc hba data structure.
8521 * This routine is invoked by the worker thread to process all the pending
8522 * SLI4 FCP abort XRI events.
8524 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
8526 struct lpfc_cq_event *cq_event;
8528 /* First, declare the fcp xri abort event has been handled */
8529 spin_lock_irq(&phba->hbalock);
8530 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
8531 spin_unlock_irq(&phba->hbalock);
8532 /* Now, handle all the fcp xri abort events */
8533 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
8534 /* Get the first event from the head of the event queue */
8535 spin_lock_irq(&phba->hbalock);
8536 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
8537 cq_event, struct lpfc_cq_event, list);
8538 spin_unlock_irq(&phba->hbalock);
8539 /* Notify aborted XRI for FCP work queue */
8540 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
8541 /* Free the event processed back to the free pool */
8542 lpfc_sli4_cq_event_release(phba, cq_event);
8547 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
8548 * @phba: pointer to lpfc hba data structure.
8550 * This routine is invoked by the worker thread to process all the pending
8551 * SLI4 els abort xri events.
8553 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
8555 struct lpfc_cq_event *cq_event;
8557 /* First, declare the els xri abort event has been handled */
8558 spin_lock_irq(&phba->hbalock);
8559 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
8560 spin_unlock_irq(&phba->hbalock);
8561 /* Now, handle all the els xri abort events */
8562 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
8563 /* Get the first event from the head of the event queue */
8564 spin_lock_irq(&phba->hbalock);
8565 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
8566 cq_event, struct lpfc_cq_event, list);
8567 spin_unlock_irq(&phba->hbalock);
8568 /* Notify aborted XRI for ELS work queue */
8569 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
8570 /* Free the event processed back to the free pool */
8571 lpfc_sli4_cq_event_release(phba, cq_event);
8576 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
8577 * @phba: pointer to lpfc hba data structure
8578 * @pIocbIn: pointer to the rspiocbq
8579 * @pIocbOut: pointer to the cmdiocbq
8580 * @wcqe: pointer to the complete wcqe
8582 * This routine transfers the fields of a command iocbq to a response iocbq
8583 * by copying all the IOCB fields from command iocbq and transferring the
8584 * completion status information from the complete wcqe.
8587 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
8588 struct lpfc_iocbq *pIocbIn,
8589 struct lpfc_iocbq *pIocbOut,
8590 struct lpfc_wcqe_complete *wcqe)
8592 unsigned long iflags;
8593 size_t offset = offsetof(struct lpfc_iocbq, iocb);
8595 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
8596 sizeof(struct lpfc_iocbq) - offset);
8597 /* Map WCQE parameters into irspiocb parameters */
8598 pIocbIn->iocb.ulpStatus = bf_get(lpfc_wcqe_c_status, wcqe);
8599 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
8600 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
8601 pIocbIn->iocb.un.fcpi.fcpi_parm =
8602 pIocbOut->iocb.un.fcpi.fcpi_parm -
8603 wcqe->total_data_placed;
8605 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
8607 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
8608 pIocbIn->iocb.un.genreq64.bdl.bdeSize = wcqe->total_data_placed;
8611 /* Pick up HBA exchange busy condition */
8612 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
8613 spin_lock_irqsave(&phba->hbalock, iflags);
8614 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
8615 spin_unlock_irqrestore(&phba->hbalock, iflags);
8620 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
8621 * @phba: Pointer to HBA context object.
8622 * @wcqe: Pointer to work-queue completion queue entry.
8624 * This routine handles an ELS work-queue completion event and construct
8625 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
8626 * discovery engine to handle.
8628 * Return: Pointer to the receive IOCBQ, NULL otherwise.
8630 static struct lpfc_iocbq *
8631 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
8632 struct lpfc_iocbq *irspiocbq)
8634 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
8635 struct lpfc_iocbq *cmdiocbq;
8636 struct lpfc_wcqe_complete *wcqe;
8637 unsigned long iflags;
8639 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
8640 spin_lock_irqsave(&phba->hbalock, iflags);
8641 pring->stats.iocb_event++;
8642 /* Look up the ELS command IOCB and create pseudo response IOCB */
8643 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
8644 bf_get(lpfc_wcqe_c_request_tag, wcqe));
8645 spin_unlock_irqrestore(&phba->hbalock, iflags);
8647 if (unlikely(!cmdiocbq)) {
8648 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8649 "0386 ELS complete with no corresponding "
8650 "cmdiocb: iotag (%d)\n",
8651 bf_get(lpfc_wcqe_c_request_tag, wcqe));
8652 lpfc_sli_release_iocbq(phba, irspiocbq);
8656 /* Fake the irspiocbq and copy necessary response information */
8657 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
8663 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
8664 * @phba: Pointer to HBA context object.
8665 * @cqe: Pointer to mailbox completion queue entry.
8667 * This routine process a mailbox completion queue entry with asynchrous
8670 * Return: true if work posted to worker thread, otherwise false.
8673 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
8675 struct lpfc_cq_event *cq_event;
8676 unsigned long iflags;
8678 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8679 "0392 Async Event: word0:x%x, word1:x%x, "
8680 "word2:x%x, word3:x%x\n", mcqe->word0,
8681 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
8683 /* Allocate a new internal CQ_EVENT entry */
8684 cq_event = lpfc_sli4_cq_event_alloc(phba);
8686 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8687 "0394 Failed to allocate CQ_EVENT entry\n");
8691 /* Move the CQE into an asynchronous event entry */
8692 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
8693 spin_lock_irqsave(&phba->hbalock, iflags);
8694 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
8695 /* Set the async event flag */
8696 phba->hba_flag |= ASYNC_EVENT;
8697 spin_unlock_irqrestore(&phba->hbalock, iflags);
8703 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
8704 * @phba: Pointer to HBA context object.
8705 * @cqe: Pointer to mailbox completion queue entry.
8707 * This routine process a mailbox completion queue entry with mailbox
8710 * Return: true if work posted to worker thread, otherwise false.
8713 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
8715 uint32_t mcqe_status;
8716 MAILBOX_t *mbox, *pmbox;
8717 struct lpfc_mqe *mqe;
8718 struct lpfc_vport *vport;
8719 struct lpfc_nodelist *ndlp;
8720 struct lpfc_dmabuf *mp;
8721 unsigned long iflags;
8723 bool workposted = false;
8726 /* If not a mailbox complete MCQE, out by checking mailbox consume */
8727 if (!bf_get(lpfc_trailer_completed, mcqe))
8728 goto out_no_mqe_complete;
8730 /* Get the reference to the active mbox command */
8731 spin_lock_irqsave(&phba->hbalock, iflags);
8732 pmb = phba->sli.mbox_active;
8733 if (unlikely(!pmb)) {
8734 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
8735 "1832 No pending MBOX command to handle\n");
8736 spin_unlock_irqrestore(&phba->hbalock, iflags);
8737 goto out_no_mqe_complete;
8739 spin_unlock_irqrestore(&phba->hbalock, iflags);
8741 pmbox = (MAILBOX_t *)&pmb->u.mqe;
8745 /* Reset heartbeat timer */
8746 phba->last_completion_time = jiffies;
8747 del_timer(&phba->sli.mbox_tmo);
8749 /* Move mbox data to caller's mailbox region, do endian swapping */
8750 if (pmb->mbox_cmpl && mbox)
8751 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
8752 /* Set the mailbox status with SLI4 range 0x4000 */
8753 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
8754 if (mcqe_status != MB_CQE_STATUS_SUCCESS)
8755 bf_set(lpfc_mqe_status, mqe,
8756 (LPFC_MBX_ERROR_RANGE | mcqe_status));
8758 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
8759 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
8760 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
8761 "MBOX dflt rpi: status:x%x rpi:x%x",
8763 pmbox->un.varWords[0], 0);
8764 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
8765 mp = (struct lpfc_dmabuf *)(pmb->context1);
8766 ndlp = (struct lpfc_nodelist *)pmb->context2;
8767 /* Reg_LOGIN of dflt RPI was successful. Now lets get
8768 * RID of the PPI using the same mbox buffer.
8770 lpfc_unreg_login(phba, vport->vpi,
8771 pmbox->un.varWords[0], pmb);
8772 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
8774 pmb->context2 = ndlp;
8776 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
8778 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
8779 LOG_SLI, "0385 rc should "
8780 "have been MBX_BUSY\n");
8781 if (rc != MBX_NOT_FINISHED)
8782 goto send_current_mbox;
8785 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
8786 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
8787 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
8789 /* There is mailbox completion work to do */
8790 spin_lock_irqsave(&phba->hbalock, iflags);
8791 __lpfc_mbox_cmpl_put(phba, pmb);
8792 phba->work_ha |= HA_MBATT;
8793 spin_unlock_irqrestore(&phba->hbalock, iflags);
8797 spin_lock_irqsave(&phba->hbalock, iflags);
8798 /* Release the mailbox command posting token */
8799 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8800 /* Setting active mailbox pointer need to be in sync to flag clear */
8801 phba->sli.mbox_active = NULL;
8802 spin_unlock_irqrestore(&phba->hbalock, iflags);
8803 /* Wake up worker thread to post the next pending mailbox command */
8804 lpfc_worker_wake_up(phba);
8805 out_no_mqe_complete:
8806 if (bf_get(lpfc_trailer_consumed, mcqe))
8807 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
8812 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
8813 * @phba: Pointer to HBA context object.
8814 * @cqe: Pointer to mailbox completion queue entry.
8816 * This routine process a mailbox completion queue entry, it invokes the
8817 * proper mailbox complete handling or asynchrous event handling routine
8818 * according to the MCQE's async bit.
8820 * Return: true if work posted to worker thread, otherwise false.
8823 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
8825 struct lpfc_mcqe mcqe;
8828 /* Copy the mailbox MCQE and convert endian order as needed */
8829 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
8831 /* Invoke the proper event handling routine */
8832 if (!bf_get(lpfc_trailer_async, &mcqe))
8833 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
8835 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
8840 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
8841 * @phba: Pointer to HBA context object.
8842 * @wcqe: Pointer to work-queue completion queue entry.
8844 * This routine handles an ELS work-queue completion event.
8846 * Return: true if work posted to worker thread, otherwise false.
8849 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba,
8850 struct lpfc_wcqe_complete *wcqe)
8852 struct lpfc_iocbq *irspiocbq;
8853 unsigned long iflags;
8854 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
8856 /* Get an irspiocbq for later ELS response processing use */
8857 irspiocbq = lpfc_sli_get_iocbq(phba);
8859 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8860 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
8861 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
8862 pring->txq_cnt, phba->iocb_cnt,
8863 phba->sli.ring[LPFC_FCP_RING].txcmplq_cnt,
8864 phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt);
8868 /* Save off the slow-path queue event for work thread to process */
8869 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
8870 spin_lock_irqsave(&phba->hbalock, iflags);
8871 list_add_tail(&irspiocbq->cq_event.list,
8872 &phba->sli4_hba.sp_queue_event);
8873 phba->hba_flag |= HBA_SP_QUEUE_EVT;
8874 spin_unlock_irqrestore(&phba->hbalock, iflags);
8880 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
8881 * @phba: Pointer to HBA context object.
8882 * @wcqe: Pointer to work-queue completion queue entry.
8884 * This routine handles slow-path WQ entry comsumed event by invoking the
8885 * proper WQ release routine to the slow-path WQ.
8888 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
8889 struct lpfc_wcqe_release *wcqe)
8891 /* Check for the slow-path ELS work queue */
8892 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
8893 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
8894 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
8896 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8897 "2579 Slow-path wqe consume event carries "
8898 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
8899 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
8900 phba->sli4_hba.els_wq->queue_id);
8904 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
8905 * @phba: Pointer to HBA context object.
8906 * @cq: Pointer to a WQ completion queue.
8907 * @wcqe: Pointer to work-queue completion queue entry.
8909 * This routine handles an XRI abort event.
8911 * Return: true if work posted to worker thread, otherwise false.
8914 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
8915 struct lpfc_queue *cq,
8916 struct sli4_wcqe_xri_aborted *wcqe)
8918 bool workposted = false;
8919 struct lpfc_cq_event *cq_event;
8920 unsigned long iflags;
8922 /* Allocate a new internal CQ_EVENT entry */
8923 cq_event = lpfc_sli4_cq_event_alloc(phba);
8925 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8926 "0602 Failed to allocate CQ_EVENT entry\n");
8930 /* Move the CQE into the proper xri abort event list */
8931 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
8932 switch (cq->subtype) {
8934 spin_lock_irqsave(&phba->hbalock, iflags);
8935 list_add_tail(&cq_event->list,
8936 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
8937 /* Set the fcp xri abort event flag */
8938 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
8939 spin_unlock_irqrestore(&phba->hbalock, iflags);
8943 spin_lock_irqsave(&phba->hbalock, iflags);
8944 list_add_tail(&cq_event->list,
8945 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
8946 /* Set the els xri abort event flag */
8947 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
8948 spin_unlock_irqrestore(&phba->hbalock, iflags);
8952 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8953 "0603 Invalid work queue CQE subtype (x%x)\n",
8962 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
8963 * @phba: Pointer to HBA context object.
8964 * @rcqe: Pointer to receive-queue completion queue entry.
8966 * This routine process a receive-queue completion queue entry.
8968 * Return: true if work posted to worker thread, otherwise false.
8971 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
8973 bool workposted = false;
8974 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
8975 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
8976 struct hbq_dmabuf *dma_buf;
8978 unsigned long iflags;
8980 if (bf_get(lpfc_rcqe_rq_id, rcqe) != hrq->queue_id)
8983 status = bf_get(lpfc_rcqe_status, rcqe);
8985 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
8986 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8987 "2537 Receive Frame Truncated!!\n");
8988 case FC_STATUS_RQ_SUCCESS:
8989 lpfc_sli4_rq_release(hrq, drq);
8990 spin_lock_irqsave(&phba->hbalock, iflags);
8991 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
8993 spin_unlock_irqrestore(&phba->hbalock, iflags);
8996 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
8997 /* save off the frame for the word thread to process */
8998 list_add_tail(&dma_buf->cq_event.list,
8999 &phba->sli4_hba.sp_queue_event);
9000 /* Frame received */
9001 phba->hba_flag |= HBA_SP_QUEUE_EVT;
9002 spin_unlock_irqrestore(&phba->hbalock, iflags);
9005 case FC_STATUS_INSUFF_BUF_NEED_BUF:
9006 case FC_STATUS_INSUFF_BUF_FRM_DISC:
9007 /* Post more buffers if possible */
9008 spin_lock_irqsave(&phba->hbalock, iflags);
9009 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
9010 spin_unlock_irqrestore(&phba->hbalock, iflags);
9019 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
9020 * @phba: Pointer to HBA context object.
9021 * @cq: Pointer to the completion queue.
9022 * @wcqe: Pointer to a completion queue entry.
9024 * This routine process a slow-path work-queue or recieve queue completion queue
9027 * Return: true if work posted to worker thread, otherwise false.
9030 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
9031 struct lpfc_cqe *cqe)
9033 struct lpfc_cqe cqevt;
9034 bool workposted = false;
9036 /* Copy the work queue CQE and convert endian order if needed */
9037 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
9039 /* Check and process for different type of WCQE and dispatch */
9040 switch (bf_get(lpfc_cqe_code, &cqevt)) {
9041 case CQE_CODE_COMPL_WQE:
9042 /* Process the WQ/RQ complete event */
9043 workposted = lpfc_sli4_sp_handle_els_wcqe(phba,
9044 (struct lpfc_wcqe_complete *)&cqevt);
9046 case CQE_CODE_RELEASE_WQE:
9047 /* Process the WQ release event */
9048 lpfc_sli4_sp_handle_rel_wcqe(phba,
9049 (struct lpfc_wcqe_release *)&cqevt);
9051 case CQE_CODE_XRI_ABORTED:
9052 /* Process the WQ XRI abort event */
9053 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
9054 (struct sli4_wcqe_xri_aborted *)&cqevt);
9056 case CQE_CODE_RECEIVE:
9057 /* Process the RQ event */
9058 workposted = lpfc_sli4_sp_handle_rcqe(phba,
9059 (struct lpfc_rcqe *)&cqevt);
9062 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9063 "0388 Not a valid WCQE code: x%x\n",
9064 bf_get(lpfc_cqe_code, &cqevt));
9071 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
9072 * @phba: Pointer to HBA context object.
9073 * @eqe: Pointer to fast-path event queue entry.
9075 * This routine process a event queue entry from the slow-path event queue.
9076 * It will check the MajorCode and MinorCode to determine this is for a
9077 * completion event on a completion queue, if not, an error shall be logged
9078 * and just return. Otherwise, it will get to the corresponding completion
9079 * queue and process all the entries on that completion queue, rearm the
9080 * completion queue, and then return.
9084 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
9086 struct lpfc_queue *cq = NULL, *childq, *speq;
9087 struct lpfc_cqe *cqe;
9088 bool workposted = false;
9092 if (bf_get_le32(lpfc_eqe_major_code, eqe) != 0) {
9093 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9094 "0359 Not a valid slow-path completion "
9095 "event: majorcode=x%x, minorcode=x%x\n",
9096 bf_get_le32(lpfc_eqe_major_code, eqe),
9097 bf_get_le32(lpfc_eqe_minor_code, eqe));
9101 /* Get the reference to the corresponding CQ */
9102 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
9104 /* Search for completion queue pointer matching this cqid */
9105 speq = phba->sli4_hba.sp_eq;
9106 list_for_each_entry(childq, &speq->child_list, list) {
9107 if (childq->queue_id == cqid) {
9112 if (unlikely(!cq)) {
9113 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
9114 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9115 "0365 Slow-path CQ identifier "
9116 "(%d) does not exist\n", cqid);
9120 /* Process all the entries to the CQ */
9123 while ((cqe = lpfc_sli4_cq_get(cq))) {
9124 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
9125 if (!(++ecount % LPFC_GET_QE_REL_INT))
9126 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
9130 while ((cqe = lpfc_sli4_cq_get(cq))) {
9131 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq, cqe);
9132 if (!(++ecount % LPFC_GET_QE_REL_INT))
9133 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
9137 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9138 "0370 Invalid completion queue type (%d)\n",
9143 /* Catch the no cq entry condition, log an error */
9144 if (unlikely(ecount == 0))
9145 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9146 "0371 No entry from the CQ: identifier "
9147 "(x%x), type (%d)\n", cq->queue_id, cq->type);
9149 /* In any case, flash and re-arm the RCQ */
9150 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
9152 /* wake up worker thread if there are works to be done */
9154 lpfc_worker_wake_up(phba);
9158 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
9159 * @eqe: Pointer to fast-path completion queue entry.
9161 * This routine process a fast-path work queue completion entry from fast-path
9162 * event queue for FCP command response completion.
9165 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba,
9166 struct lpfc_wcqe_complete *wcqe)
9168 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
9169 struct lpfc_iocbq *cmdiocbq;
9170 struct lpfc_iocbq irspiocbq;
9171 unsigned long iflags;
9173 spin_lock_irqsave(&phba->hbalock, iflags);
9174 pring->stats.iocb_event++;
9175 spin_unlock_irqrestore(&phba->hbalock, iflags);
9177 /* Check for response status */
9178 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
9179 /* If resource errors reported from HBA, reduce queue
9180 * depth of the SCSI device.
9182 if ((bf_get(lpfc_wcqe_c_status, wcqe) ==
9183 IOSTAT_LOCAL_REJECT) &&
9184 (wcqe->parameter == IOERR_NO_RESOURCES)) {
9185 phba->lpfc_rampdown_queue_depth(phba);
9187 /* Log the error status */
9188 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9189 "0373 FCP complete error: status=x%x, "
9190 "hw_status=x%x, total_data_specified=%d, "
9191 "parameter=x%x, word3=x%x\n",
9192 bf_get(lpfc_wcqe_c_status, wcqe),
9193 bf_get(lpfc_wcqe_c_hw_status, wcqe),
9194 wcqe->total_data_placed, wcqe->parameter,
9198 /* Look up the FCP command IOCB and create pseudo response IOCB */
9199 spin_lock_irqsave(&phba->hbalock, iflags);
9200 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
9201 bf_get(lpfc_wcqe_c_request_tag, wcqe));
9202 spin_unlock_irqrestore(&phba->hbalock, iflags);
9203 if (unlikely(!cmdiocbq)) {
9204 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9205 "0374 FCP complete with no corresponding "
9206 "cmdiocb: iotag (%d)\n",
9207 bf_get(lpfc_wcqe_c_request_tag, wcqe));
9210 if (unlikely(!cmdiocbq->iocb_cmpl)) {
9211 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9212 "0375 FCP cmdiocb not callback function "
9214 bf_get(lpfc_wcqe_c_request_tag, wcqe));
9218 /* Fake the irspiocb and copy necessary response information */
9219 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
9221 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
9222 spin_lock_irqsave(&phba->hbalock, iflags);
9223 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
9224 spin_unlock_irqrestore(&phba->hbalock, iflags);
9227 /* Pass the cmd_iocb and the rsp state to the upper layer */
9228 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
9232 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
9233 * @phba: Pointer to HBA context object.
9234 * @cq: Pointer to completion queue.
9235 * @wcqe: Pointer to work-queue completion queue entry.
9237 * This routine handles an fast-path WQ entry comsumed event by invoking the
9238 * proper WQ release routine to the slow-path WQ.
9241 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
9242 struct lpfc_wcqe_release *wcqe)
9244 struct lpfc_queue *childwq;
9245 bool wqid_matched = false;
9248 /* Check for fast-path FCP work queue release */
9249 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
9250 list_for_each_entry(childwq, &cq->child_list, list) {
9251 if (childwq->queue_id == fcp_wqid) {
9252 lpfc_sli4_wq_release(childwq,
9253 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
9254 wqid_matched = true;
9258 /* Report warning log message if no match found */
9259 if (wqid_matched != true)
9260 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9261 "2580 Fast-path wqe consume event carries "
9262 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
9266 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
9267 * @cq: Pointer to the completion queue.
9268 * @eqe: Pointer to fast-path completion queue entry.
9270 * This routine process a fast-path work queue completion entry from fast-path
9271 * event queue for FCP command response completion.
9274 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
9275 struct lpfc_cqe *cqe)
9277 struct lpfc_wcqe_release wcqe;
9278 bool workposted = false;
9279 unsigned long iflag;
9281 /* Copy the work queue CQE and convert endian order if needed */
9282 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
9284 /* Check and process for different type of WCQE and dispatch */
9285 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
9286 case CQE_CODE_COMPL_WQE:
9287 /* Process the WQ complete event */
9288 spin_lock_irqsave(&phba->hbalock, iflag);
9289 phba->last_completion_time = jiffies;
9290 spin_unlock_irqrestore(&phba->hbalock, iflag);
9291 lpfc_sli4_fp_handle_fcp_wcqe(phba,
9292 (struct lpfc_wcqe_complete *)&wcqe);
9294 case CQE_CODE_RELEASE_WQE:
9295 /* Process the WQ release event */
9296 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
9297 (struct lpfc_wcqe_release *)&wcqe);
9299 case CQE_CODE_XRI_ABORTED:
9300 /* Process the WQ XRI abort event */
9301 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
9302 (struct sli4_wcqe_xri_aborted *)&wcqe);
9305 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9306 "0144 Not a valid WCQE code: x%x\n",
9307 bf_get(lpfc_wcqe_c_code, &wcqe));
9314 * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
9315 * @phba: Pointer to HBA context object.
9316 * @eqe: Pointer to fast-path event queue entry.
9318 * This routine process a event queue entry from the fast-path event queue.
9319 * It will check the MajorCode and MinorCode to determine this is for a
9320 * completion event on a completion queue, if not, an error shall be logged
9321 * and just return. Otherwise, it will get to the corresponding completion
9322 * queue and process all the entries on the completion queue, rearm the
9323 * completion queue, and then return.
9326 lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
9329 struct lpfc_queue *cq;
9330 struct lpfc_cqe *cqe;
9331 bool workposted = false;
9335 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
9336 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9337 "0366 Not a valid fast-path completion "
9338 "event: majorcode=x%x, minorcode=x%x\n",
9339 bf_get_le32(lpfc_eqe_major_code, eqe),
9340 bf_get_le32(lpfc_eqe_minor_code, eqe));
9344 cq = phba->sli4_hba.fcp_cq[fcp_cqidx];
9345 if (unlikely(!cq)) {
9346 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
9347 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9348 "0367 Fast-path completion queue "
9349 "does not exist\n");
9353 /* Get the reference to the corresponding CQ */
9354 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
9355 if (unlikely(cqid != cq->queue_id)) {
9356 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9357 "0368 Miss-matched fast-path completion "
9358 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
9359 cqid, cq->queue_id);
9363 /* Process all the entries to the CQ */
9364 while ((cqe = lpfc_sli4_cq_get(cq))) {
9365 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
9366 if (!(++ecount % LPFC_GET_QE_REL_INT))
9367 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
9370 /* Catch the no cq entry condition */
9371 if (unlikely(ecount == 0))
9372 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9373 "0369 No entry from fast-path completion "
9374 "queue fcpcqid=%d\n", cq->queue_id);
9376 /* In any case, flash and re-arm the CQ */
9377 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
9379 /* wake up worker thread if there are works to be done */
9381 lpfc_worker_wake_up(phba);
9385 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
9387 struct lpfc_eqe *eqe;
9389 /* walk all the EQ entries and drop on the floor */
9390 while ((eqe = lpfc_sli4_eq_get(eq)))
9393 /* Clear and re-arm the EQ */
9394 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
9398 * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
9399 * @irq: Interrupt number.
9400 * @dev_id: The device context pointer.
9402 * This function is directly called from the PCI layer as an interrupt
9403 * service routine when device with SLI-4 interface spec is enabled with
9404 * MSI-X multi-message interrupt mode and there are slow-path events in
9405 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
9406 * interrupt mode, this function is called as part of the device-level
9407 * interrupt handler. When the PCI slot is in error recovery or the HBA is
9408 * undergoing initialization, the interrupt handler will not process the
9409 * interrupt. The link attention and ELS ring attention events are handled
9410 * by the worker thread. The interrupt handler signals the worker thread
9411 * and returns for these events. This function is called without any lock
9412 * held. It gets the hbalock to access and update SLI data structures.
9414 * This function returns IRQ_HANDLED when interrupt is handled else it
9418 lpfc_sli4_sp_intr_handler(int irq, void *dev_id)
9420 struct lpfc_hba *phba;
9421 struct lpfc_queue *speq;
9422 struct lpfc_eqe *eqe;
9423 unsigned long iflag;
9427 * Get the driver's phba structure from the dev_id
9429 phba = (struct lpfc_hba *)dev_id;
9431 if (unlikely(!phba))
9434 /* Get to the EQ struct associated with this vector */
9435 speq = phba->sli4_hba.sp_eq;
9437 /* Check device state for handling interrupt */
9438 if (unlikely(lpfc_intr_state_check(phba))) {
9439 /* Check again for link_state with lock held */
9440 spin_lock_irqsave(&phba->hbalock, iflag);
9441 if (phba->link_state < LPFC_LINK_DOWN)
9442 /* Flush, clear interrupt, and rearm the EQ */
9443 lpfc_sli4_eq_flush(phba, speq);
9444 spin_unlock_irqrestore(&phba->hbalock, iflag);
9449 * Process all the event on FCP slow-path EQ
9451 while ((eqe = lpfc_sli4_eq_get(speq))) {
9452 lpfc_sli4_sp_handle_eqe(phba, eqe);
9453 if (!(++ecount % LPFC_GET_QE_REL_INT))
9454 lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM);
9457 /* Always clear and re-arm the slow-path EQ */
9458 lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM);
9460 /* Catch the no cq entry condition */
9461 if (unlikely(ecount == 0)) {
9462 if (phba->intr_type == MSIX)
9463 /* MSI-X treated interrupt served as no EQ share INT */
9464 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9465 "0357 MSI-X interrupt with no EQE\n");
9467 /* Non MSI-X treated on interrupt as EQ share INT */
9472 } /* lpfc_sli4_sp_intr_handler */
9475 * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
9476 * @irq: Interrupt number.
9477 * @dev_id: The device context pointer.
9479 * This function is directly called from the PCI layer as an interrupt
9480 * service routine when device with SLI-4 interface spec is enabled with
9481 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
9482 * ring event in the HBA. However, when the device is enabled with either
9483 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
9484 * device-level interrupt handler. When the PCI slot is in error recovery
9485 * or the HBA is undergoing initialization, the interrupt handler will not
9486 * process the interrupt. The SCSI FCP fast-path ring event are handled in
9487 * the intrrupt context. This function is called without any lock held.
9488 * It gets the hbalock to access and update SLI data structures. Note that,
9489 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
9490 * equal to that of FCP CQ index.
9492 * This function returns IRQ_HANDLED when interrupt is handled else it
9496 lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
9498 struct lpfc_hba *phba;
9499 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
9500 struct lpfc_queue *fpeq;
9501 struct lpfc_eqe *eqe;
9502 unsigned long iflag;
9506 /* Get the driver's phba structure from the dev_id */
9507 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
9508 phba = fcp_eq_hdl->phba;
9509 fcp_eqidx = fcp_eq_hdl->idx;
9511 if (unlikely(!phba))
9514 /* Get to the EQ struct associated with this vector */
9515 fpeq = phba->sli4_hba.fp_eq[fcp_eqidx];
9517 /* Check device state for handling interrupt */
9518 if (unlikely(lpfc_intr_state_check(phba))) {
9519 /* Check again for link_state with lock held */
9520 spin_lock_irqsave(&phba->hbalock, iflag);
9521 if (phba->link_state < LPFC_LINK_DOWN)
9522 /* Flush, clear interrupt, and rearm the EQ */
9523 lpfc_sli4_eq_flush(phba, fpeq);
9524 spin_unlock_irqrestore(&phba->hbalock, iflag);
9529 * Process all the event on FCP fast-path EQ
9531 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
9532 lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx);
9533 if (!(++ecount % LPFC_GET_QE_REL_INT))
9534 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
9537 /* Always clear and re-arm the fast-path EQ */
9538 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
9540 if (unlikely(ecount == 0)) {
9541 if (phba->intr_type == MSIX)
9542 /* MSI-X treated interrupt served as no EQ share INT */
9543 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9544 "0358 MSI-X interrupt with no EQE\n");
9546 /* Non MSI-X treated on interrupt as EQ share INT */
9551 } /* lpfc_sli4_fp_intr_handler */
9554 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
9555 * @irq: Interrupt number.
9556 * @dev_id: The device context pointer.
9558 * This function is the device-level interrupt handler to device with SLI-4
9559 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
9560 * interrupt mode is enabled and there is an event in the HBA which requires
9561 * driver attention. This function invokes the slow-path interrupt attention
9562 * handling function and fast-path interrupt attention handling function in
9563 * turn to process the relevant HBA attention events. This function is called
9564 * without any lock held. It gets the hbalock to access and update SLI data
9567 * This function returns IRQ_HANDLED when interrupt is handled, else it
9571 lpfc_sli4_intr_handler(int irq, void *dev_id)
9573 struct lpfc_hba *phba;
9574 irqreturn_t sp_irq_rc, fp_irq_rc;
9575 bool fp_handled = false;
9578 /* Get the driver's phba structure from the dev_id */
9579 phba = (struct lpfc_hba *)dev_id;
9581 if (unlikely(!phba))
9585 * Invokes slow-path host attention interrupt handling as appropriate.
9587 sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id);
9590 * Invoke fast-path host attention interrupt handling as appropriate.
9592 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
9593 fp_irq_rc = lpfc_sli4_fp_intr_handler(irq,
9594 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
9595 if (fp_irq_rc == IRQ_HANDLED)
9599 return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc;
9600 } /* lpfc_sli4_intr_handler */
9603 * lpfc_sli4_queue_free - free a queue structure and associated memory
9604 * @queue: The queue structure to free.
9606 * This function frees a queue structure and the DMAable memeory used for
9607 * the host resident queue. This function must be called after destroying the
9611 lpfc_sli4_queue_free(struct lpfc_queue *queue)
9613 struct lpfc_dmabuf *dmabuf;
9618 while (!list_empty(&queue->page_list)) {
9619 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
9621 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
9622 dmabuf->virt, dmabuf->phys);
9630 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
9631 * @phba: The HBA that this queue is being created on.
9632 * @entry_size: The size of each queue entry for this queue.
9633 * @entry count: The number of entries that this queue will handle.
9635 * This function allocates a queue structure and the DMAable memory used for
9636 * the host resident queue. This function must be called before creating the
9640 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
9641 uint32_t entry_count)
9643 struct lpfc_queue *queue;
9644 struct lpfc_dmabuf *dmabuf;
9645 int x, total_qe_count;
9647 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
9649 if (!phba->sli4_hba.pc_sli4_params.supported)
9650 hw_page_size = SLI4_PAGE_SIZE;
9652 queue = kzalloc(sizeof(struct lpfc_queue) +
9653 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
9656 queue->page_count = (ALIGN(entry_size * entry_count,
9657 hw_page_size))/hw_page_size;
9658 INIT_LIST_HEAD(&queue->list);
9659 INIT_LIST_HEAD(&queue->page_list);
9660 INIT_LIST_HEAD(&queue->child_list);
9661 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
9662 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
9665 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
9666 hw_page_size, &dmabuf->phys,
9668 if (!dmabuf->virt) {
9672 memset(dmabuf->virt, 0, hw_page_size);
9673 dmabuf->buffer_tag = x;
9674 list_add_tail(&dmabuf->list, &queue->page_list);
9675 /* initialize queue's entry array */
9676 dma_pointer = dmabuf->virt;
9677 for (; total_qe_count < entry_count &&
9678 dma_pointer < (hw_page_size + dmabuf->virt);
9679 total_qe_count++, dma_pointer += entry_size) {
9680 queue->qe[total_qe_count].address = dma_pointer;
9683 queue->entry_size = entry_size;
9684 queue->entry_count = entry_count;
9689 lpfc_sli4_queue_free(queue);
9694 * lpfc_eq_create - Create an Event Queue on the HBA
9695 * @phba: HBA structure that indicates port to create a queue on.
9696 * @eq: The queue structure to use to create the event queue.
9697 * @imax: The maximum interrupt per second limit.
9699 * This function creates an event queue, as detailed in @eq, on a port,
9700 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
9702 * The @phba struct is used to send mailbox command to HBA. The @eq struct
9703 * is used to get the entry count and entry size that are necessary to
9704 * determine the number of pages to allocate and use for this queue. This
9705 * function will send the EQ_CREATE mailbox command to the HBA to setup the
9706 * event queue. This function is asynchronous and will wait for the mailbox
9707 * command to finish before continuing.
9709 * On success this function will return a zero. If unable to allocate enough
9710 * memory this function will return ENOMEM. If the queue create mailbox command
9711 * fails this function will return ENXIO.
9714 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax)
9716 struct lpfc_mbx_eq_create *eq_create;
9718 int rc, length, status = 0;
9719 struct lpfc_dmabuf *dmabuf;
9720 uint32_t shdr_status, shdr_add_status;
9721 union lpfc_sli4_cfg_shdr *shdr;
9723 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
9725 if (!phba->sli4_hba.pc_sli4_params.supported)
9726 hw_page_size = SLI4_PAGE_SIZE;
9728 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9731 length = (sizeof(struct lpfc_mbx_eq_create) -
9732 sizeof(struct lpfc_sli4_cfg_mhdr));
9733 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9734 LPFC_MBOX_OPCODE_EQ_CREATE,
9735 length, LPFC_SLI4_MBX_EMBED);
9736 eq_create = &mbox->u.mqe.un.eq_create;
9737 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
9739 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
9741 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
9742 /* Calculate delay multiper from maximum interrupt per second */
9743 dmult = LPFC_DMULT_CONST/imax - 1;
9744 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
9746 switch (eq->entry_count) {
9748 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9749 "0360 Unsupported EQ count. (%d)\n",
9751 if (eq->entry_count < 256)
9753 /* otherwise default to smallest count (drop through) */
9755 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9759 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9763 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9767 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9771 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9775 list_for_each_entry(dmabuf, &eq->page_list, list) {
9776 memset(dmabuf->virt, 0, hw_page_size);
9777 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9778 putPaddrLow(dmabuf->phys);
9779 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9780 putPaddrHigh(dmabuf->phys);
9782 mbox->vport = phba->pport;
9783 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
9784 mbox->context1 = NULL;
9785 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9786 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
9787 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9788 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9789 if (shdr_status || shdr_add_status || rc) {
9790 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9791 "2500 EQ_CREATE mailbox failed with "
9792 "status x%x add_status x%x, mbx status x%x\n",
9793 shdr_status, shdr_add_status, rc);
9797 eq->subtype = LPFC_NONE;
9798 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
9799 if (eq->queue_id == 0xFFFF)
9804 mempool_free(mbox, phba->mbox_mem_pool);
9809 * lpfc_cq_create - Create a Completion Queue on the HBA
9810 * @phba: HBA structure that indicates port to create a queue on.
9811 * @cq: The queue structure to use to create the completion queue.
9812 * @eq: The event queue to bind this completion queue to.
9814 * This function creates a completion queue, as detailed in @wq, on a port,
9815 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
9817 * The @phba struct is used to send mailbox command to HBA. The @cq struct
9818 * is used to get the entry count and entry size that are necessary to
9819 * determine the number of pages to allocate and use for this queue. The @eq
9820 * is used to indicate which event queue to bind this completion queue to. This
9821 * function will send the CQ_CREATE mailbox command to the HBA to setup the
9822 * completion queue. This function is asynchronous and will wait for the mailbox
9823 * command to finish before continuing.
9825 * On success this function will return a zero. If unable to allocate enough
9826 * memory this function will return ENOMEM. If the queue create mailbox command
9827 * fails this function will return ENXIO.
9830 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
9831 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
9833 struct lpfc_mbx_cq_create *cq_create;
9834 struct lpfc_dmabuf *dmabuf;
9836 int rc, length, status = 0;
9837 uint32_t shdr_status, shdr_add_status;
9838 union lpfc_sli4_cfg_shdr *shdr;
9839 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
9841 if (!phba->sli4_hba.pc_sli4_params.supported)
9842 hw_page_size = SLI4_PAGE_SIZE;
9845 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9848 length = (sizeof(struct lpfc_mbx_cq_create) -
9849 sizeof(struct lpfc_sli4_cfg_mhdr));
9850 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9851 LPFC_MBOX_OPCODE_CQ_CREATE,
9852 length, LPFC_SLI4_MBX_EMBED);
9853 cq_create = &mbox->u.mqe.un.cq_create;
9854 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
9856 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
9857 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
9858 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context, eq->queue_id);
9859 switch (cq->entry_count) {
9861 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9862 "0361 Unsupported CQ count. (%d)\n",
9864 if (cq->entry_count < 256)
9866 /* otherwise default to smallest count (drop through) */
9868 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9872 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9876 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9880 list_for_each_entry(dmabuf, &cq->page_list, list) {
9881 memset(dmabuf->virt, 0, hw_page_size);
9882 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9883 putPaddrLow(dmabuf->phys);
9884 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9885 putPaddrHigh(dmabuf->phys);
9887 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9889 /* The IOCTL status is embedded in the mailbox subheader. */
9890 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
9891 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9892 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9893 if (shdr_status || shdr_add_status || rc) {
9894 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9895 "2501 CQ_CREATE mailbox failed with "
9896 "status x%x add_status x%x, mbx status x%x\n",
9897 shdr_status, shdr_add_status, rc);
9901 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
9902 if (cq->queue_id == 0xFFFF) {
9906 /* link the cq onto the parent eq child list */
9907 list_add_tail(&cq->list, &eq->child_list);
9908 /* Set up completion queue's type and subtype */
9910 cq->subtype = subtype;
9911 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
9916 mempool_free(mbox, phba->mbox_mem_pool);
9921 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
9922 * @phba: HBA structure that indicates port to create a queue on.
9923 * @mq: The queue structure to use to create the mailbox queue.
9924 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
9925 * @cq: The completion queue to associate with this cq.
9927 * This function provides failback (fb) functionality when the
9928 * mq_create_ext fails on older FW generations. It's purpose is identical
9929 * to mq_create_ext otherwise.
9931 * This routine cannot fail as all attributes were previously accessed and
9932 * initialized in mq_create_ext.
9935 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
9936 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
9938 struct lpfc_mbx_mq_create *mq_create;
9939 struct lpfc_dmabuf *dmabuf;
9942 length = (sizeof(struct lpfc_mbx_mq_create) -
9943 sizeof(struct lpfc_sli4_cfg_mhdr));
9944 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9945 LPFC_MBOX_OPCODE_MQ_CREATE,
9946 length, LPFC_SLI4_MBX_EMBED);
9947 mq_create = &mbox->u.mqe.un.mq_create;
9948 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
9950 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
9952 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
9953 switch (mq->entry_count) {
9955 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9959 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9963 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9967 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9971 list_for_each_entry(dmabuf, &mq->page_list, list) {
9972 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9973 putPaddrLow(dmabuf->phys);
9974 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9975 putPaddrHigh(dmabuf->phys);
9980 * lpfc_mq_create - Create a mailbox Queue on the HBA
9981 * @phba: HBA structure that indicates port to create a queue on.
9982 * @mq: The queue structure to use to create the mailbox queue.
9983 * @cq: The completion queue to associate with this cq.
9984 * @subtype: The queue's subtype.
9986 * This function creates a mailbox queue, as detailed in @mq, on a port,
9987 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
9989 * The @phba struct is used to send mailbox command to HBA. The @cq struct
9990 * is used to get the entry count and entry size that are necessary to
9991 * determine the number of pages to allocate and use for this queue. This
9992 * function will send the MQ_CREATE mailbox command to the HBA to setup the
9993 * mailbox queue. This function is asynchronous and will wait for the mailbox
9994 * command to finish before continuing.
9996 * On success this function will return a zero. If unable to allocate enough
9997 * memory this function will return ENOMEM. If the queue create mailbox command
9998 * fails this function will return ENXIO.
10001 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
10002 struct lpfc_queue *cq, uint32_t subtype)
10004 struct lpfc_mbx_mq_create *mq_create;
10005 struct lpfc_mbx_mq_create_ext *mq_create_ext;
10006 struct lpfc_dmabuf *dmabuf;
10007 LPFC_MBOXQ_t *mbox;
10008 int rc, length, status = 0;
10009 uint32_t shdr_status, shdr_add_status;
10010 union lpfc_sli4_cfg_shdr *shdr;
10011 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
10013 if (!phba->sli4_hba.pc_sli4_params.supported)
10014 hw_page_size = SLI4_PAGE_SIZE;
10016 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10019 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
10020 sizeof(struct lpfc_sli4_cfg_mhdr));
10021 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10022 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
10023 length, LPFC_SLI4_MBX_EMBED);
10025 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
10026 bf_set(lpfc_mbx_mq_create_ext_num_pages, &mq_create_ext->u.request,
10028 bf_set(lpfc_mbx_mq_create_ext_async_evt_link, &mq_create_ext->u.request,
10030 bf_set(lpfc_mbx_mq_create_ext_async_evt_fcfste,
10031 &mq_create_ext->u.request, 1);
10032 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
10033 &mq_create_ext->u.request, 1);
10034 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
10036 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
10037 switch (mq->entry_count) {
10039 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10040 "0362 Unsupported MQ count. (%d)\n",
10042 if (mq->entry_count < 16)
10044 /* otherwise default to smallest count (drop through) */
10046 bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context,
10050 bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context,
10054 bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context,
10058 bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context,
10062 list_for_each_entry(dmabuf, &mq->page_list, list) {
10063 memset(dmabuf->virt, 0, hw_page_size);
10064 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
10065 putPaddrLow(dmabuf->phys);
10066 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
10067 putPaddrHigh(dmabuf->phys);
10069 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10070 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
10071 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
10072 &mq_create_ext->u.response);
10073 if (rc != MBX_SUCCESS) {
10074 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10075 "2795 MQ_CREATE_EXT failed with "
10076 "status x%x. Failback to MQ_CREATE.\n",
10078 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
10079 mq_create = &mbox->u.mqe.un.mq_create;
10080 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10081 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
10082 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
10083 &mq_create->u.response);
10086 /* The IOCTL status is embedded in the mailbox subheader. */
10087 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10088 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10089 if (shdr_status || shdr_add_status || rc) {
10090 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10091 "2502 MQ_CREATE mailbox failed with "
10092 "status x%x add_status x%x, mbx status x%x\n",
10093 shdr_status, shdr_add_status, rc);
10097 if (mq->queue_id == 0xFFFF) {
10101 mq->type = LPFC_MQ;
10102 mq->subtype = subtype;
10103 mq->host_index = 0;
10106 /* link the mq onto the parent cq child list */
10107 list_add_tail(&mq->list, &cq->child_list);
10109 mempool_free(mbox, phba->mbox_mem_pool);
10114 * lpfc_wq_create - Create a Work Queue on the HBA
10115 * @phba: HBA structure that indicates port to create a queue on.
10116 * @wq: The queue structure to use to create the work queue.
10117 * @cq: The completion queue to bind this work queue to.
10118 * @subtype: The subtype of the work queue indicating its functionality.
10120 * This function creates a work queue, as detailed in @wq, on a port, described
10121 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
10123 * The @phba struct is used to send mailbox command to HBA. The @wq struct
10124 * is used to get the entry count and entry size that are necessary to
10125 * determine the number of pages to allocate and use for this queue. The @cq
10126 * is used to indicate which completion queue to bind this work queue to. This
10127 * function will send the WQ_CREATE mailbox command to the HBA to setup the
10128 * work queue. This function is asynchronous and will wait for the mailbox
10129 * command to finish before continuing.
10131 * On success this function will return a zero. If unable to allocate enough
10132 * memory this function will return ENOMEM. If the queue create mailbox command
10133 * fails this function will return ENXIO.
10136 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
10137 struct lpfc_queue *cq, uint32_t subtype)
10139 struct lpfc_mbx_wq_create *wq_create;
10140 struct lpfc_dmabuf *dmabuf;
10141 LPFC_MBOXQ_t *mbox;
10142 int rc, length, status = 0;
10143 uint32_t shdr_status, shdr_add_status;
10144 union lpfc_sli4_cfg_shdr *shdr;
10145 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
10147 if (!phba->sli4_hba.pc_sli4_params.supported)
10148 hw_page_size = SLI4_PAGE_SIZE;
10150 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10153 length = (sizeof(struct lpfc_mbx_wq_create) -
10154 sizeof(struct lpfc_sli4_cfg_mhdr));
10155 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10156 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
10157 length, LPFC_SLI4_MBX_EMBED);
10158 wq_create = &mbox->u.mqe.un.wq_create;
10159 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
10161 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
10163 list_for_each_entry(dmabuf, &wq->page_list, list) {
10164 memset(dmabuf->virt, 0, hw_page_size);
10165 wq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
10166 putPaddrLow(dmabuf->phys);
10167 wq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
10168 putPaddrHigh(dmabuf->phys);
10170 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10171 /* The IOCTL status is embedded in the mailbox subheader. */
10172 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
10173 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10174 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10175 if (shdr_status || shdr_add_status || rc) {
10176 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10177 "2503 WQ_CREATE mailbox failed with "
10178 "status x%x add_status x%x, mbx status x%x\n",
10179 shdr_status, shdr_add_status, rc);
10183 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
10184 if (wq->queue_id == 0xFFFF) {
10188 wq->type = LPFC_WQ;
10189 wq->subtype = subtype;
10190 wq->host_index = 0;
10193 /* link the wq onto the parent cq child list */
10194 list_add_tail(&wq->list, &cq->child_list);
10196 mempool_free(mbox, phba->mbox_mem_pool);
10201 * lpfc_rq_create - Create a Receive Queue on the HBA
10202 * @phba: HBA structure that indicates port to create a queue on.
10203 * @hrq: The queue structure to use to create the header receive queue.
10204 * @drq: The queue structure to use to create the data receive queue.
10205 * @cq: The completion queue to bind this work queue to.
10207 * This function creates a receive buffer queue pair , as detailed in @hrq and
10208 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
10211 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
10212 * struct is used to get the entry count that is necessary to determine the
10213 * number of pages to use for this queue. The @cq is used to indicate which
10214 * completion queue to bind received buffers that are posted to these queues to.
10215 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
10216 * receive queue pair. This function is asynchronous and will wait for the
10217 * mailbox command to finish before continuing.
10219 * On success this function will return a zero. If unable to allocate enough
10220 * memory this function will return ENOMEM. If the queue create mailbox command
10221 * fails this function will return ENXIO.
10224 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
10225 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
10227 struct lpfc_mbx_rq_create *rq_create;
10228 struct lpfc_dmabuf *dmabuf;
10229 LPFC_MBOXQ_t *mbox;
10230 int rc, length, status = 0;
10231 uint32_t shdr_status, shdr_add_status;
10232 union lpfc_sli4_cfg_shdr *shdr;
10233 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
10235 if (!phba->sli4_hba.pc_sli4_params.supported)
10236 hw_page_size = SLI4_PAGE_SIZE;
10238 if (hrq->entry_count != drq->entry_count)
10240 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10243 length = (sizeof(struct lpfc_mbx_rq_create) -
10244 sizeof(struct lpfc_sli4_cfg_mhdr));
10245 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10246 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
10247 length, LPFC_SLI4_MBX_EMBED);
10248 rq_create = &mbox->u.mqe.un.rq_create;
10249 switch (hrq->entry_count) {
10251 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10252 "2535 Unsupported RQ count. (%d)\n",
10254 if (hrq->entry_count < 512)
10256 /* otherwise default to smallest count (drop through) */
10258 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10259 LPFC_RQ_RING_SIZE_512);
10262 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10263 LPFC_RQ_RING_SIZE_1024);
10266 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10267 LPFC_RQ_RING_SIZE_2048);
10270 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10271 LPFC_RQ_RING_SIZE_4096);
10274 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
10276 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
10278 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
10279 LPFC_HDR_BUF_SIZE);
10280 list_for_each_entry(dmabuf, &hrq->page_list, list) {
10281 memset(dmabuf->virt, 0, hw_page_size);
10282 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
10283 putPaddrLow(dmabuf->phys);
10284 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
10285 putPaddrHigh(dmabuf->phys);
10287 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10288 /* The IOCTL status is embedded in the mailbox subheader. */
10289 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
10290 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10291 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10292 if (shdr_status || shdr_add_status || rc) {
10293 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10294 "2504 RQ_CREATE mailbox failed with "
10295 "status x%x add_status x%x, mbx status x%x\n",
10296 shdr_status, shdr_add_status, rc);
10300 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
10301 if (hrq->queue_id == 0xFFFF) {
10305 hrq->type = LPFC_HRQ;
10306 hrq->subtype = subtype;
10307 hrq->host_index = 0;
10308 hrq->hba_index = 0;
10310 /* now create the data queue */
10311 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10312 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
10313 length, LPFC_SLI4_MBX_EMBED);
10314 switch (drq->entry_count) {
10316 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10317 "2536 Unsupported RQ count. (%d)\n",
10319 if (drq->entry_count < 512)
10321 /* otherwise default to smallest count (drop through) */
10323 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10324 LPFC_RQ_RING_SIZE_512);
10327 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10328 LPFC_RQ_RING_SIZE_1024);
10331 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10332 LPFC_RQ_RING_SIZE_2048);
10335 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10336 LPFC_RQ_RING_SIZE_4096);
10339 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
10341 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
10343 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
10344 LPFC_DATA_BUF_SIZE);
10345 list_for_each_entry(dmabuf, &drq->page_list, list) {
10346 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
10347 putPaddrLow(dmabuf->phys);
10348 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
10349 putPaddrHigh(dmabuf->phys);
10351 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10352 /* The IOCTL status is embedded in the mailbox subheader. */
10353 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
10354 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10355 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10356 if (shdr_status || shdr_add_status || rc) {
10360 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
10361 if (drq->queue_id == 0xFFFF) {
10365 drq->type = LPFC_DRQ;
10366 drq->subtype = subtype;
10367 drq->host_index = 0;
10368 drq->hba_index = 0;
10370 /* link the header and data RQs onto the parent cq child list */
10371 list_add_tail(&hrq->list, &cq->child_list);
10372 list_add_tail(&drq->list, &cq->child_list);
10375 mempool_free(mbox, phba->mbox_mem_pool);
10380 * lpfc_eq_destroy - Destroy an event Queue on the HBA
10381 * @eq: The queue structure associated with the queue to destroy.
10383 * This function destroys a queue, as detailed in @eq by sending an mailbox
10384 * command, specific to the type of queue, to the HBA.
10386 * The @eq struct is used to get the queue ID of the queue to destroy.
10388 * On success this function will return a zero. If the queue destroy mailbox
10389 * command fails this function will return ENXIO.
10392 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
10394 LPFC_MBOXQ_t *mbox;
10395 int rc, length, status = 0;
10396 uint32_t shdr_status, shdr_add_status;
10397 union lpfc_sli4_cfg_shdr *shdr;
10401 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
10404 length = (sizeof(struct lpfc_mbx_eq_destroy) -
10405 sizeof(struct lpfc_sli4_cfg_mhdr));
10406 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10407 LPFC_MBOX_OPCODE_EQ_DESTROY,
10408 length, LPFC_SLI4_MBX_EMBED);
10409 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
10411 mbox->vport = eq->phba->pport;
10412 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10414 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
10415 /* The IOCTL status is embedded in the mailbox subheader. */
10416 shdr = (union lpfc_sli4_cfg_shdr *)
10417 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
10418 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10419 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10420 if (shdr_status || shdr_add_status || rc) {
10421 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10422 "2505 EQ_DESTROY mailbox failed with "
10423 "status x%x add_status x%x, mbx status x%x\n",
10424 shdr_status, shdr_add_status, rc);
10428 /* Remove eq from any list */
10429 list_del_init(&eq->list);
10430 mempool_free(mbox, eq->phba->mbox_mem_pool);
10435 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
10436 * @cq: The queue structure associated with the queue to destroy.
10438 * This function destroys a queue, as detailed in @cq by sending an mailbox
10439 * command, specific to the type of queue, to the HBA.
10441 * The @cq struct is used to get the queue ID of the queue to destroy.
10443 * On success this function will return a zero. If the queue destroy mailbox
10444 * command fails this function will return ENXIO.
10447 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
10449 LPFC_MBOXQ_t *mbox;
10450 int rc, length, status = 0;
10451 uint32_t shdr_status, shdr_add_status;
10452 union lpfc_sli4_cfg_shdr *shdr;
10456 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
10459 length = (sizeof(struct lpfc_mbx_cq_destroy) -
10460 sizeof(struct lpfc_sli4_cfg_mhdr));
10461 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10462 LPFC_MBOX_OPCODE_CQ_DESTROY,
10463 length, LPFC_SLI4_MBX_EMBED);
10464 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
10466 mbox->vport = cq->phba->pport;
10467 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10468 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
10469 /* The IOCTL status is embedded in the mailbox subheader. */
10470 shdr = (union lpfc_sli4_cfg_shdr *)
10471 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
10472 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10473 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10474 if (shdr_status || shdr_add_status || rc) {
10475 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10476 "2506 CQ_DESTROY mailbox failed with "
10477 "status x%x add_status x%x, mbx status x%x\n",
10478 shdr_status, shdr_add_status, rc);
10481 /* Remove cq from any list */
10482 list_del_init(&cq->list);
10483 mempool_free(mbox, cq->phba->mbox_mem_pool);
10488 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
10489 * @qm: The queue structure associated with the queue to destroy.
10491 * This function destroys a queue, as detailed in @mq by sending an mailbox
10492 * command, specific to the type of queue, to the HBA.
10494 * The @mq struct is used to get the queue ID of the queue to destroy.
10496 * On success this function will return a zero. If the queue destroy mailbox
10497 * command fails this function will return ENXIO.
10500 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
10502 LPFC_MBOXQ_t *mbox;
10503 int rc, length, status = 0;
10504 uint32_t shdr_status, shdr_add_status;
10505 union lpfc_sli4_cfg_shdr *shdr;
10509 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
10512 length = (sizeof(struct lpfc_mbx_mq_destroy) -
10513 sizeof(struct lpfc_sli4_cfg_mhdr));
10514 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10515 LPFC_MBOX_OPCODE_MQ_DESTROY,
10516 length, LPFC_SLI4_MBX_EMBED);
10517 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
10519 mbox->vport = mq->phba->pport;
10520 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10521 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
10522 /* The IOCTL status is embedded in the mailbox subheader. */
10523 shdr = (union lpfc_sli4_cfg_shdr *)
10524 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
10525 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10526 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10527 if (shdr_status || shdr_add_status || rc) {
10528 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10529 "2507 MQ_DESTROY mailbox failed with "
10530 "status x%x add_status x%x, mbx status x%x\n",
10531 shdr_status, shdr_add_status, rc);
10534 /* Remove mq from any list */
10535 list_del_init(&mq->list);
10536 mempool_free(mbox, mq->phba->mbox_mem_pool);
10541 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
10542 * @wq: The queue structure associated with the queue to destroy.
10544 * This function destroys a queue, as detailed in @wq by sending an mailbox
10545 * command, specific to the type of queue, to the HBA.
10547 * The @wq struct is used to get the queue ID of the queue to destroy.
10549 * On success this function will return a zero. If the queue destroy mailbox
10550 * command fails this function will return ENXIO.
10553 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
10555 LPFC_MBOXQ_t *mbox;
10556 int rc, length, status = 0;
10557 uint32_t shdr_status, shdr_add_status;
10558 union lpfc_sli4_cfg_shdr *shdr;
10562 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
10565 length = (sizeof(struct lpfc_mbx_wq_destroy) -
10566 sizeof(struct lpfc_sli4_cfg_mhdr));
10567 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10568 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
10569 length, LPFC_SLI4_MBX_EMBED);
10570 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
10572 mbox->vport = wq->phba->pport;
10573 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10574 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
10575 shdr = (union lpfc_sli4_cfg_shdr *)
10576 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
10577 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10578 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10579 if (shdr_status || shdr_add_status || rc) {
10580 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10581 "2508 WQ_DESTROY mailbox failed with "
10582 "status x%x add_status x%x, mbx status x%x\n",
10583 shdr_status, shdr_add_status, rc);
10586 /* Remove wq from any list */
10587 list_del_init(&wq->list);
10588 mempool_free(mbox, wq->phba->mbox_mem_pool);
10593 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
10594 * @rq: The queue structure associated with the queue to destroy.
10596 * This function destroys a queue, as detailed in @rq by sending an mailbox
10597 * command, specific to the type of queue, to the HBA.
10599 * The @rq struct is used to get the queue ID of the queue to destroy.
10601 * On success this function will return a zero. If the queue destroy mailbox
10602 * command fails this function will return ENXIO.
10605 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
10606 struct lpfc_queue *drq)
10608 LPFC_MBOXQ_t *mbox;
10609 int rc, length, status = 0;
10610 uint32_t shdr_status, shdr_add_status;
10611 union lpfc_sli4_cfg_shdr *shdr;
10615 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
10618 length = (sizeof(struct lpfc_mbx_rq_destroy) -
10619 sizeof(struct mbox_header));
10620 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10621 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
10622 length, LPFC_SLI4_MBX_EMBED);
10623 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
10625 mbox->vport = hrq->phba->pport;
10626 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10627 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
10628 /* The IOCTL status is embedded in the mailbox subheader. */
10629 shdr = (union lpfc_sli4_cfg_shdr *)
10630 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
10631 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10632 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10633 if (shdr_status || shdr_add_status || rc) {
10634 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10635 "2509 RQ_DESTROY mailbox failed with "
10636 "status x%x add_status x%x, mbx status x%x\n",
10637 shdr_status, shdr_add_status, rc);
10638 if (rc != MBX_TIMEOUT)
10639 mempool_free(mbox, hrq->phba->mbox_mem_pool);
10642 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
10644 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
10645 shdr = (union lpfc_sli4_cfg_shdr *)
10646 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
10647 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10648 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10649 if (shdr_status || shdr_add_status || rc) {
10650 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10651 "2510 RQ_DESTROY mailbox failed with "
10652 "status x%x add_status x%x, mbx status x%x\n",
10653 shdr_status, shdr_add_status, rc);
10656 list_del_init(&hrq->list);
10657 list_del_init(&drq->list);
10658 mempool_free(mbox, hrq->phba->mbox_mem_pool);
10663 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
10664 * @phba: The virtual port for which this call being executed.
10665 * @pdma_phys_addr0: Physical address of the 1st SGL page.
10666 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
10667 * @xritag: the xritag that ties this io to the SGL pages.
10669 * This routine will post the sgl pages for the IO that has the xritag
10670 * that is in the iocbq structure. The xritag is assigned during iocbq
10671 * creation and persists for as long as the driver is loaded.
10672 * if the caller has fewer than 256 scatter gather segments to map then
10673 * pdma_phys_addr1 should be 0.
10674 * If the caller needs to map more than 256 scatter gather segment then
10675 * pdma_phys_addr1 should be a valid physical address.
10676 * physical address for SGLs must be 64 byte aligned.
10677 * If you are going to map 2 SGL's then the first one must have 256 entries
10678 * the second sgl can have between 1 and 256 entries.
10682 * -ENXIO, -ENOMEM - Failure
10685 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
10686 dma_addr_t pdma_phys_addr0,
10687 dma_addr_t pdma_phys_addr1,
10690 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
10691 LPFC_MBOXQ_t *mbox;
10693 uint32_t shdr_status, shdr_add_status;
10694 union lpfc_sli4_cfg_shdr *shdr;
10696 if (xritag == NO_XRI) {
10697 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10698 "0364 Invalid param:\n");
10702 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10706 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10707 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
10708 sizeof(struct lpfc_mbx_post_sgl_pages) -
10709 sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
10711 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
10712 &mbox->u.mqe.un.post_sgl_pages;
10713 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
10714 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
10716 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
10717 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
10718 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
10719 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
10721 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
10722 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
10723 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
10724 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
10725 if (!phba->sli4_hba.intr_enable)
10726 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10728 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
10729 /* The IOCTL status is embedded in the mailbox subheader. */
10730 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
10731 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10732 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10733 if (rc != MBX_TIMEOUT)
10734 mempool_free(mbox, phba->mbox_mem_pool);
10735 if (shdr_status || shdr_add_status || rc) {
10736 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10737 "2511 POST_SGL mailbox failed with "
10738 "status x%x add_status x%x, mbx status x%x\n",
10739 shdr_status, shdr_add_status, rc);
10745 * lpfc_sli4_remove_all_sgl_pages - Post scatter gather list for an XRI to HBA
10746 * @phba: The virtual port for which this call being executed.
10748 * This routine will remove all of the sgl pages registered with the hba.
10752 * -ENXIO, -ENOMEM - Failure
10755 lpfc_sli4_remove_all_sgl_pages(struct lpfc_hba *phba)
10757 LPFC_MBOXQ_t *mbox;
10759 uint32_t shdr_status, shdr_add_status;
10760 union lpfc_sli4_cfg_shdr *shdr;
10762 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10766 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10767 LPFC_MBOX_OPCODE_FCOE_REMOVE_SGL_PAGES, 0,
10768 LPFC_SLI4_MBX_EMBED);
10769 if (!phba->sli4_hba.intr_enable)
10770 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10772 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
10773 /* The IOCTL status is embedded in the mailbox subheader. */
10774 shdr = (union lpfc_sli4_cfg_shdr *)
10775 &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
10776 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10777 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10778 if (rc != MBX_TIMEOUT)
10779 mempool_free(mbox, phba->mbox_mem_pool);
10780 if (shdr_status || shdr_add_status || rc) {
10781 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10782 "2512 REMOVE_ALL_SGL_PAGES mailbox failed with "
10783 "status x%x add_status x%x, mbx status x%x\n",
10784 shdr_status, shdr_add_status, rc);
10791 * lpfc_sli4_next_xritag - Get an xritag for the io
10792 * @phba: Pointer to HBA context object.
10794 * This function gets an xritag for the iocb. If there is no unused xritag
10795 * it will return 0xffff.
10796 * The function returns the allocated xritag if successful, else returns zero.
10797 * Zero is not a valid xritag.
10798 * The caller is not required to hold any lock.
10801 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
10805 spin_lock_irq(&phba->hbalock);
10806 xritag = phba->sli4_hba.next_xri;
10807 if ((xritag != (uint16_t) -1) && xritag <
10808 (phba->sli4_hba.max_cfg_param.max_xri
10809 + phba->sli4_hba.max_cfg_param.xri_base)) {
10810 phba->sli4_hba.next_xri++;
10811 phba->sli4_hba.max_cfg_param.xri_used++;
10812 spin_unlock_irq(&phba->hbalock);
10815 spin_unlock_irq(&phba->hbalock);
10816 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10817 "2004 Failed to allocate XRI.last XRITAG is %d"
10818 " Max XRI is %d, Used XRI is %d\n",
10819 phba->sli4_hba.next_xri,
10820 phba->sli4_hba.max_cfg_param.max_xri,
10821 phba->sli4_hba.max_cfg_param.xri_used);
10826 * lpfc_sli4_post_sgl_list - post a block of sgl list to the firmware.
10827 * @phba: pointer to lpfc hba data structure.
10829 * This routine is invoked to post a block of driver's sgl pages to the
10830 * HBA using non-embedded mailbox command. No Lock is held. This routine
10831 * is only called when the driver is loading and after all IO has been
10835 lpfc_sli4_post_sgl_list(struct lpfc_hba *phba)
10837 struct lpfc_sglq *sglq_entry;
10838 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
10839 struct sgl_page_pairs *sgl_pg_pairs;
10841 LPFC_MBOXQ_t *mbox;
10842 uint32_t reqlen, alloclen, pg_pairs;
10844 uint16_t xritag_start = 0;
10845 int els_xri_cnt, rc = 0;
10846 uint32_t shdr_status, shdr_add_status;
10847 union lpfc_sli4_cfg_shdr *shdr;
10849 /* The number of sgls to be posted */
10850 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
10852 reqlen = els_xri_cnt * sizeof(struct sgl_page_pairs) +
10853 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
10854 if (reqlen > SLI4_PAGE_SIZE) {
10855 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10856 "2559 Block sgl registration required DMA "
10857 "size (%d) great than a page\n", reqlen);
10860 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10862 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10863 "2560 Failed to allocate mbox cmd memory\n");
10867 /* Allocate DMA memory and set up the non-embedded mailbox command */
10868 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10869 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
10870 LPFC_SLI4_MBX_NEMBED);
10872 if (alloclen < reqlen) {
10873 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10874 "0285 Allocated DMA memory size (%d) is "
10875 "less than the requested DMA memory "
10876 "size (%d)\n", alloclen, reqlen);
10877 lpfc_sli4_mbox_cmd_free(phba, mbox);
10880 /* Get the first SGE entry from the non-embedded DMA memory */
10881 viraddr = mbox->sge_array->addr[0];
10883 /* Set up the SGL pages in the non-embedded DMA pages */
10884 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
10885 sgl_pg_pairs = &sgl->sgl_pg_pairs;
10887 for (pg_pairs = 0; pg_pairs < els_xri_cnt; pg_pairs++) {
10888 sglq_entry = phba->sli4_hba.lpfc_els_sgl_array[pg_pairs];
10889 /* Set up the sge entry */
10890 sgl_pg_pairs->sgl_pg0_addr_lo =
10891 cpu_to_le32(putPaddrLow(sglq_entry->phys));
10892 sgl_pg_pairs->sgl_pg0_addr_hi =
10893 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
10894 sgl_pg_pairs->sgl_pg1_addr_lo =
10895 cpu_to_le32(putPaddrLow(0));
10896 sgl_pg_pairs->sgl_pg1_addr_hi =
10897 cpu_to_le32(putPaddrHigh(0));
10898 /* Keep the first xritag on the list */
10900 xritag_start = sglq_entry->sli4_xritag;
10903 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
10904 bf_set(lpfc_post_sgl_pages_xricnt, sgl, els_xri_cnt);
10905 /* Perform endian conversion if necessary */
10906 sgl->word0 = cpu_to_le32(sgl->word0);
10908 if (!phba->sli4_hba.intr_enable)
10909 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10911 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
10912 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
10914 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
10915 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10916 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10917 if (rc != MBX_TIMEOUT)
10918 lpfc_sli4_mbox_cmd_free(phba, mbox);
10919 if (shdr_status || shdr_add_status || rc) {
10920 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10921 "2513 POST_SGL_BLOCK mailbox command failed "
10922 "status x%x add_status x%x mbx status x%x\n",
10923 shdr_status, shdr_add_status, rc);
10930 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
10931 * @phba: pointer to lpfc hba data structure.
10932 * @sblist: pointer to scsi buffer list.
10933 * @count: number of scsi buffers on the list.
10935 * This routine is invoked to post a block of @count scsi sgl pages from a
10936 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
10941 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba, struct list_head *sblist,
10944 struct lpfc_scsi_buf *psb;
10945 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
10946 struct sgl_page_pairs *sgl_pg_pairs;
10948 LPFC_MBOXQ_t *mbox;
10949 uint32_t reqlen, alloclen, pg_pairs;
10951 uint16_t xritag_start = 0;
10953 uint32_t shdr_status, shdr_add_status;
10954 dma_addr_t pdma_phys_bpl1;
10955 union lpfc_sli4_cfg_shdr *shdr;
10957 /* Calculate the requested length of the dma memory */
10958 reqlen = cnt * sizeof(struct sgl_page_pairs) +
10959 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
10960 if (reqlen > SLI4_PAGE_SIZE) {
10961 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10962 "0217 Block sgl registration required DMA "
10963 "size (%d) great than a page\n", reqlen);
10966 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10968 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10969 "0283 Failed to allocate mbox cmd memory\n");
10973 /* Allocate DMA memory and set up the non-embedded mailbox command */
10974 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10975 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
10976 LPFC_SLI4_MBX_NEMBED);
10978 if (alloclen < reqlen) {
10979 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10980 "2561 Allocated DMA memory size (%d) is "
10981 "less than the requested DMA memory "
10982 "size (%d)\n", alloclen, reqlen);
10983 lpfc_sli4_mbox_cmd_free(phba, mbox);
10986 /* Get the first SGE entry from the non-embedded DMA memory */
10987 viraddr = mbox->sge_array->addr[0];
10989 /* Set up the SGL pages in the non-embedded DMA pages */
10990 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
10991 sgl_pg_pairs = &sgl->sgl_pg_pairs;
10994 list_for_each_entry(psb, sblist, list) {
10995 /* Set up the sge entry */
10996 sgl_pg_pairs->sgl_pg0_addr_lo =
10997 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
10998 sgl_pg_pairs->sgl_pg0_addr_hi =
10999 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
11000 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
11001 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
11003 pdma_phys_bpl1 = 0;
11004 sgl_pg_pairs->sgl_pg1_addr_lo =
11005 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
11006 sgl_pg_pairs->sgl_pg1_addr_hi =
11007 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
11008 /* Keep the first xritag on the list */
11010 xritag_start = psb->cur_iocbq.sli4_xritag;
11014 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
11015 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
11016 /* Perform endian conversion if necessary */
11017 sgl->word0 = cpu_to_le32(sgl->word0);
11019 if (!phba->sli4_hba.intr_enable)
11020 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
11022 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
11023 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
11025 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
11026 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11027 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11028 if (rc != MBX_TIMEOUT)
11029 lpfc_sli4_mbox_cmd_free(phba, mbox);
11030 if (shdr_status || shdr_add_status || rc) {
11031 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11032 "2564 POST_SGL_BLOCK mailbox command failed "
11033 "status x%x add_status x%x mbx status x%x\n",
11034 shdr_status, shdr_add_status, rc);
11041 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
11042 * @phba: pointer to lpfc_hba struct that the frame was received on
11043 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11045 * This function checks the fields in the @fc_hdr to see if the FC frame is a
11046 * valid type of frame that the LPFC driver will handle. This function will
11047 * return a zero if the frame is a valid frame or a non zero value when the
11048 * frame does not pass the check.
11051 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
11053 char *rctl_names[] = FC_RCTL_NAMES_INIT;
11054 char *type_names[] = FC_TYPE_NAMES_INIT;
11055 struct fc_vft_header *fc_vft_hdr;
11057 switch (fc_hdr->fh_r_ctl) {
11058 case FC_RCTL_DD_UNCAT: /* uncategorized information */
11059 case FC_RCTL_DD_SOL_DATA: /* solicited data */
11060 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
11061 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
11062 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
11063 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
11064 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
11065 case FC_RCTL_DD_CMD_STATUS: /* command status */
11066 case FC_RCTL_ELS_REQ: /* extended link services request */
11067 case FC_RCTL_ELS_REP: /* extended link services reply */
11068 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
11069 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
11070 case FC_RCTL_BA_NOP: /* basic link service NOP */
11071 case FC_RCTL_BA_ABTS: /* basic link service abort */
11072 case FC_RCTL_BA_RMC: /* remove connection */
11073 case FC_RCTL_BA_ACC: /* basic accept */
11074 case FC_RCTL_BA_RJT: /* basic reject */
11075 case FC_RCTL_BA_PRMT:
11076 case FC_RCTL_ACK_1: /* acknowledge_1 */
11077 case FC_RCTL_ACK_0: /* acknowledge_0 */
11078 case FC_RCTL_P_RJT: /* port reject */
11079 case FC_RCTL_F_RJT: /* fabric reject */
11080 case FC_RCTL_P_BSY: /* port busy */
11081 case FC_RCTL_F_BSY: /* fabric busy to data frame */
11082 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
11083 case FC_RCTL_LCR: /* link credit reset */
11084 case FC_RCTL_END: /* end */
11086 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
11087 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
11088 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
11089 return lpfc_fc_frame_check(phba, fc_hdr);
11093 switch (fc_hdr->fh_type) {
11104 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
11105 "2538 Received frame rctl:%s type:%s\n",
11106 rctl_names[fc_hdr->fh_r_ctl],
11107 type_names[fc_hdr->fh_type]);
11110 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
11111 "2539 Dropped frame rctl:%s type:%s\n",
11112 rctl_names[fc_hdr->fh_r_ctl],
11113 type_names[fc_hdr->fh_type]);
11118 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
11119 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11121 * This function processes the FC header to retrieve the VFI from the VF
11122 * header, if one exists. This function will return the VFI if one exists
11123 * or 0 if no VSAN Header exists.
11126 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
11128 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
11130 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
11132 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
11136 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
11137 * @phba: Pointer to the HBA structure to search for the vport on
11138 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11139 * @fcfi: The FC Fabric ID that the frame came from
11141 * This function searches the @phba for a vport that matches the content of the
11142 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
11143 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
11144 * returns the matching vport pointer or NULL if unable to match frame to a
11147 static struct lpfc_vport *
11148 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
11151 struct lpfc_vport **vports;
11152 struct lpfc_vport *vport = NULL;
11154 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
11155 fc_hdr->fh_d_id[1] << 8 |
11156 fc_hdr->fh_d_id[2]);
11158 vports = lpfc_create_vport_work_array(phba);
11159 if (vports != NULL)
11160 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
11161 if (phba->fcf.fcfi == fcfi &&
11162 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
11163 vports[i]->fc_myDID == did) {
11168 lpfc_destroy_vport_work_array(phba, vports);
11173 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
11174 * @vport: The vport to work on.
11176 * This function updates the receive sequence time stamp for this vport. The
11177 * receive sequence time stamp indicates the time that the last frame of the
11178 * the sequence that has been idle for the longest amount of time was received.
11179 * the driver uses this time stamp to indicate if any received sequences have
11183 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
11185 struct lpfc_dmabuf *h_buf;
11186 struct hbq_dmabuf *dmabuf = NULL;
11188 /* get the oldest sequence on the rcv list */
11189 h_buf = list_get_first(&vport->rcv_buffer_list,
11190 struct lpfc_dmabuf, list);
11193 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11194 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
11198 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
11199 * @vport: The vport that the received sequences were sent to.
11201 * This function cleans up all outstanding received sequences. This is called
11202 * by the driver when a link event or user action invalidates all the received
11206 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
11208 struct lpfc_dmabuf *h_buf, *hnext;
11209 struct lpfc_dmabuf *d_buf, *dnext;
11210 struct hbq_dmabuf *dmabuf = NULL;
11212 /* start with the oldest sequence on the rcv list */
11213 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
11214 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11215 list_del_init(&dmabuf->hbuf.list);
11216 list_for_each_entry_safe(d_buf, dnext,
11217 &dmabuf->dbuf.list, list) {
11218 list_del_init(&d_buf->list);
11219 lpfc_in_buf_free(vport->phba, d_buf);
11221 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
11226 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
11227 * @vport: The vport that the received sequences were sent to.
11229 * This function determines whether any received sequences have timed out by
11230 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
11231 * indicates that there is at least one timed out sequence this routine will
11232 * go through the received sequences one at a time from most inactive to most
11233 * active to determine which ones need to be cleaned up. Once it has determined
11234 * that a sequence needs to be cleaned up it will simply free up the resources
11235 * without sending an abort.
11238 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
11240 struct lpfc_dmabuf *h_buf, *hnext;
11241 struct lpfc_dmabuf *d_buf, *dnext;
11242 struct hbq_dmabuf *dmabuf = NULL;
11243 unsigned long timeout;
11244 int abort_count = 0;
11246 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
11247 vport->rcv_buffer_time_stamp);
11248 if (list_empty(&vport->rcv_buffer_list) ||
11249 time_before(jiffies, timeout))
11251 /* start with the oldest sequence on the rcv list */
11252 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
11253 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11254 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
11255 dmabuf->time_stamp);
11256 if (time_before(jiffies, timeout))
11259 list_del_init(&dmabuf->hbuf.list);
11260 list_for_each_entry_safe(d_buf, dnext,
11261 &dmabuf->dbuf.list, list) {
11262 list_del_init(&d_buf->list);
11263 lpfc_in_buf_free(vport->phba, d_buf);
11265 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
11268 lpfc_update_rcv_time_stamp(vport);
11272 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
11273 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
11275 * This function searches through the existing incomplete sequences that have
11276 * been sent to this @vport. If the frame matches one of the incomplete
11277 * sequences then the dbuf in the @dmabuf is added to the list of frames that
11278 * make up that sequence. If no sequence is found that matches this frame then
11279 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
11280 * This function returns a pointer to the first dmabuf in the sequence list that
11281 * the frame was linked to.
11283 static struct hbq_dmabuf *
11284 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
11286 struct fc_frame_header *new_hdr;
11287 struct fc_frame_header *temp_hdr;
11288 struct lpfc_dmabuf *d_buf;
11289 struct lpfc_dmabuf *h_buf;
11290 struct hbq_dmabuf *seq_dmabuf = NULL;
11291 struct hbq_dmabuf *temp_dmabuf = NULL;
11293 INIT_LIST_HEAD(&dmabuf->dbuf.list);
11294 dmabuf->time_stamp = jiffies;
11295 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11296 /* Use the hdr_buf to find the sequence that this frame belongs to */
11297 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
11298 temp_hdr = (struct fc_frame_header *)h_buf->virt;
11299 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
11300 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
11301 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
11303 /* found a pending sequence that matches this frame */
11304 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11309 * This indicates first frame received for this sequence.
11310 * Queue the buffer on the vport's rcv_buffer_list.
11312 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
11313 lpfc_update_rcv_time_stamp(vport);
11316 temp_hdr = seq_dmabuf->hbuf.virt;
11317 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
11318 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
11319 list_del_init(&seq_dmabuf->hbuf.list);
11320 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
11321 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
11322 lpfc_update_rcv_time_stamp(vport);
11325 /* move this sequence to the tail to indicate a young sequence */
11326 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
11327 seq_dmabuf->time_stamp = jiffies;
11328 lpfc_update_rcv_time_stamp(vport);
11329 if (list_empty(&seq_dmabuf->dbuf.list)) {
11330 temp_hdr = dmabuf->hbuf.virt;
11331 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
11334 /* find the correct place in the sequence to insert this frame */
11335 list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
11336 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
11337 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
11339 * If the frame's sequence count is greater than the frame on
11340 * the list then insert the frame right after this frame
11342 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
11343 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
11344 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
11352 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
11353 * @vport: pointer to a vitural port
11354 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11356 * This function tries to abort from the partially assembed sequence, described
11357 * by the information from basic abbort @dmabuf. It checks to see whether such
11358 * partially assembled sequence held by the driver. If so, it shall free up all
11359 * the frames from the partially assembled sequence.
11362 * true -- if there is matching partially assembled sequence present and all
11363 * the frames freed with the sequence;
11364 * false -- if there is no matching partially assembled sequence present so
11365 * nothing got aborted in the lower layer driver
11368 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
11369 struct hbq_dmabuf *dmabuf)
11371 struct fc_frame_header *new_hdr;
11372 struct fc_frame_header *temp_hdr;
11373 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
11374 struct hbq_dmabuf *seq_dmabuf = NULL;
11376 /* Use the hdr_buf to find the sequence that matches this frame */
11377 INIT_LIST_HEAD(&dmabuf->dbuf.list);
11378 INIT_LIST_HEAD(&dmabuf->hbuf.list);
11379 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11380 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
11381 temp_hdr = (struct fc_frame_header *)h_buf->virt;
11382 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
11383 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
11384 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
11386 /* found a pending sequence that matches this frame */
11387 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11391 /* Free up all the frames from the partially assembled sequence */
11393 list_for_each_entry_safe(d_buf, n_buf,
11394 &seq_dmabuf->dbuf.list, list) {
11395 list_del_init(&d_buf->list);
11396 lpfc_in_buf_free(vport->phba, d_buf);
11404 * lpfc_sli4_seq_abort_acc_cmpl - Accept seq abort iocb complete handler
11405 * @phba: Pointer to HBA context object.
11406 * @cmd_iocbq: pointer to the command iocbq structure.
11407 * @rsp_iocbq: pointer to the response iocbq structure.
11409 * This function handles the sequence abort accept iocb command complete
11410 * event. It properly releases the memory allocated to the sequence abort
11414 lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba *phba,
11415 struct lpfc_iocbq *cmd_iocbq,
11416 struct lpfc_iocbq *rsp_iocbq)
11419 lpfc_sli_release_iocbq(phba, cmd_iocbq);
11423 * lpfc_sli4_seq_abort_acc - Accept sequence abort
11424 * @phba: Pointer to HBA context object.
11425 * @fc_hdr: pointer to a FC frame header.
11427 * This function sends a basic accept to a previous unsol sequence abort
11428 * event after aborting the sequence handling.
11431 lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba,
11432 struct fc_frame_header *fc_hdr)
11434 struct lpfc_iocbq *ctiocb = NULL;
11435 struct lpfc_nodelist *ndlp;
11436 uint16_t oxid, rxid;
11437 uint32_t sid, fctl;
11440 if (!lpfc_is_link_up(phba))
11443 sid = sli4_sid_from_fc_hdr(fc_hdr);
11444 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
11445 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
11447 ndlp = lpfc_findnode_did(phba->pport, sid);
11449 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
11450 "1268 Find ndlp returned NULL for oxid:x%x "
11451 "SID:x%x\n", oxid, sid);
11455 /* Allocate buffer for acc iocb */
11456 ctiocb = lpfc_sli_get_iocbq(phba);
11460 /* Extract the F_CTL field from FC_HDR */
11461 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
11463 icmd = &ctiocb->iocb;
11464 icmd->un.xseq64.bdl.bdeSize = 0;
11465 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
11466 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
11467 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
11468 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
11470 /* Fill in the rest of iocb fields */
11471 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
11472 icmd->ulpBdeCount = 0;
11474 icmd->ulpClass = CLASS3;
11475 icmd->ulpContext = ndlp->nlp_rpi;
11477 ctiocb->iocb_cmpl = NULL;
11478 ctiocb->vport = phba->pport;
11479 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_acc_cmpl;
11481 if (fctl & FC_FC_EX_CTX) {
11482 /* ABTS sent by responder to CT exchange, construction
11483 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
11484 * field and RX_ID from ABTS for RX_ID field.
11486 bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_RSP);
11487 bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, rxid);
11488 ctiocb->sli4_xritag = oxid;
11490 /* ABTS sent by initiator to CT exchange, construction
11491 * of BA_ACC will need to allocate a new XRI as for the
11492 * XRI_TAG and RX_ID fields.
11494 bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_INT);
11495 bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, NO_XRI);
11496 ctiocb->sli4_xritag = NO_XRI;
11498 bf_set(lpfc_abts_oxid, &icmd->un.bls_acc, oxid);
11500 /* Xmit CT abts accept on exchange <xid> */
11501 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
11502 "1200 Xmit CT ABTS ACC on exchange x%x Data: x%x\n",
11503 CMD_XMIT_BLS_RSP64_CX, phba->link_state);
11504 lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
11508 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
11509 * @vport: Pointer to the vport on which this sequence was received
11510 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11512 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
11513 * receive sequence is only partially assembed by the driver, it shall abort
11514 * the partially assembled frames for the sequence. Otherwise, if the
11515 * unsolicited receive sequence has been completely assembled and passed to
11516 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
11517 * unsolicited sequence has been aborted. After that, it will issue a basic
11518 * accept to accept the abort.
11521 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
11522 struct hbq_dmabuf *dmabuf)
11524 struct lpfc_hba *phba = vport->phba;
11525 struct fc_frame_header fc_hdr;
11529 /* Make a copy of fc_hdr before the dmabuf being released */
11530 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
11531 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
11533 if (fctl & FC_FC_EX_CTX) {
11535 * ABTS sent by responder to exchange, just free the buffer
11537 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11540 * ABTS sent by initiator to exchange, need to do cleanup
11542 /* Try to abort partially assembled seq */
11543 abts_par = lpfc_sli4_abort_partial_seq(vport, dmabuf);
11545 /* Send abort to ULP if partially seq abort failed */
11546 if (abts_par == false)
11547 lpfc_sli4_send_seq_to_ulp(vport, dmabuf);
11549 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11551 /* Send basic accept (BA_ACC) to the abort requester */
11552 lpfc_sli4_seq_abort_acc(phba, &fc_hdr);
11556 * lpfc_seq_complete - Indicates if a sequence is complete
11557 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11559 * This function checks the sequence, starting with the frame described by
11560 * @dmabuf, to see if all the frames associated with this sequence are present.
11561 * the frames associated with this sequence are linked to the @dmabuf using the
11562 * dbuf list. This function looks for two major things. 1) That the first frame
11563 * has a sequence count of zero. 2) There is a frame with last frame of sequence
11564 * set. 3) That there are no holes in the sequence count. The function will
11565 * return 1 when the sequence is complete, otherwise it will return 0.
11568 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
11570 struct fc_frame_header *hdr;
11571 struct lpfc_dmabuf *d_buf;
11572 struct hbq_dmabuf *seq_dmabuf;
11576 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11577 /* make sure first fame of sequence has a sequence count of zero */
11578 if (hdr->fh_seq_cnt != seq_count)
11580 fctl = (hdr->fh_f_ctl[0] << 16 |
11581 hdr->fh_f_ctl[1] << 8 |
11583 /* If last frame of sequence we can return success. */
11584 if (fctl & FC_FC_END_SEQ)
11586 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
11587 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
11588 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
11589 /* If there is a hole in the sequence count then fail. */
11590 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
11592 fctl = (hdr->fh_f_ctl[0] << 16 |
11593 hdr->fh_f_ctl[1] << 8 |
11595 /* If last frame of sequence we can return success. */
11596 if (fctl & FC_FC_END_SEQ)
11603 * lpfc_prep_seq - Prep sequence for ULP processing
11604 * @vport: Pointer to the vport on which this sequence was received
11605 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11607 * This function takes a sequence, described by a list of frames, and creates
11608 * a list of iocbq structures to describe the sequence. This iocbq list will be
11609 * used to issue to the generic unsolicited sequence handler. This routine
11610 * returns a pointer to the first iocbq in the list. If the function is unable
11611 * to allocate an iocbq then it throw out the received frames that were not
11612 * able to be described and return a pointer to the first iocbq. If unable to
11613 * allocate any iocbqs (including the first) this function will return NULL.
11615 static struct lpfc_iocbq *
11616 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
11618 struct lpfc_dmabuf *d_buf, *n_buf;
11619 struct lpfc_iocbq *first_iocbq, *iocbq;
11620 struct fc_frame_header *fc_hdr;
11622 struct ulp_bde64 *pbde;
11624 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
11625 /* remove from receive buffer list */
11626 list_del_init(&seq_dmabuf->hbuf.list);
11627 lpfc_update_rcv_time_stamp(vport);
11628 /* get the Remote Port's SID */
11629 sid = sli4_sid_from_fc_hdr(fc_hdr);
11630 /* Get an iocbq struct to fill in. */
11631 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
11633 /* Initialize the first IOCB. */
11634 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
11635 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
11636 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
11637 first_iocbq->iocb.ulpContext = be16_to_cpu(fc_hdr->fh_ox_id);
11638 first_iocbq->iocb.unsli3.rcvsli3.vpi =
11639 vport->vpi + vport->phba->vpi_base;
11640 /* put the first buffer into the first IOCBq */
11641 first_iocbq->context2 = &seq_dmabuf->dbuf;
11642 first_iocbq->context3 = NULL;
11643 first_iocbq->iocb.ulpBdeCount = 1;
11644 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
11645 LPFC_DATA_BUF_SIZE;
11646 first_iocbq->iocb.un.rcvels.remoteID = sid;
11647 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
11648 bf_get(lpfc_rcqe_length,
11649 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
11651 iocbq = first_iocbq;
11653 * Each IOCBq can have two Buffers assigned, so go through the list
11654 * of buffers for this sequence and save two buffers in each IOCBq
11656 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
11658 lpfc_in_buf_free(vport->phba, d_buf);
11661 if (!iocbq->context3) {
11662 iocbq->context3 = d_buf;
11663 iocbq->iocb.ulpBdeCount++;
11664 pbde = (struct ulp_bde64 *)
11665 &iocbq->iocb.unsli3.sli3Words[4];
11666 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
11667 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
11668 bf_get(lpfc_rcqe_length,
11669 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
11671 iocbq = lpfc_sli_get_iocbq(vport->phba);
11674 first_iocbq->iocb.ulpStatus =
11675 IOSTAT_FCP_RSP_ERROR;
11676 first_iocbq->iocb.un.ulpWord[4] =
11677 IOERR_NO_RESOURCES;
11679 lpfc_in_buf_free(vport->phba, d_buf);
11682 iocbq->context2 = d_buf;
11683 iocbq->context3 = NULL;
11684 iocbq->iocb.ulpBdeCount = 1;
11685 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
11686 LPFC_DATA_BUF_SIZE;
11687 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
11688 bf_get(lpfc_rcqe_length,
11689 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
11690 iocbq->iocb.un.rcvels.remoteID = sid;
11691 list_add_tail(&iocbq->list, &first_iocbq->list);
11694 return first_iocbq;
11698 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
11699 struct hbq_dmabuf *seq_dmabuf)
11701 struct fc_frame_header *fc_hdr;
11702 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
11703 struct lpfc_hba *phba = vport->phba;
11705 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
11706 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
11708 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11709 "2707 Ring %d handler: Failed to allocate "
11710 "iocb Rctl x%x Type x%x received\n",
11712 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
11715 if (!lpfc_complete_unsol_iocb(phba,
11716 &phba->sli.ring[LPFC_ELS_RING],
11717 iocbq, fc_hdr->fh_r_ctl,
11719 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11720 "2540 Ring %d handler: unexpected Rctl "
11721 "x%x Type x%x received\n",
11723 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
11725 /* Free iocb created in lpfc_prep_seq */
11726 list_for_each_entry_safe(curr_iocb, next_iocb,
11727 &iocbq->list, list) {
11728 list_del_init(&curr_iocb->list);
11729 lpfc_sli_release_iocbq(phba, curr_iocb);
11731 lpfc_sli_release_iocbq(phba, iocbq);
11735 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
11736 * @phba: Pointer to HBA context object.
11738 * This function is called with no lock held. This function processes all
11739 * the received buffers and gives it to upper layers when a received buffer
11740 * indicates that it is the final frame in the sequence. The interrupt
11741 * service routine processes received buffers at interrupt contexts and adds
11742 * received dma buffers to the rb_pend_list queue and signals the worker thread.
11743 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
11744 * appropriate receive function when the final frame in a sequence is received.
11747 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
11748 struct hbq_dmabuf *dmabuf)
11750 struct hbq_dmabuf *seq_dmabuf;
11751 struct fc_frame_header *fc_hdr;
11752 struct lpfc_vport *vport;
11755 /* Process each received buffer */
11756 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11757 /* check to see if this a valid type of frame */
11758 if (lpfc_fc_frame_check(phba, fc_hdr)) {
11759 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11762 fcfi = bf_get(lpfc_rcqe_fcf_id, &dmabuf->cq_event.cqe.rcqe_cmpl);
11763 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
11764 if (!vport || !(vport->vpi_state & LPFC_VPI_REGISTERED)) {
11765 /* throw out the frame */
11766 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11769 /* Handle the basic abort sequence (BA_ABTS) event */
11770 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
11771 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
11775 /* Link this frame */
11776 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
11778 /* unable to add frame to vport - throw it out */
11779 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11782 /* If not last frame in sequence continue processing frames. */
11783 if (!lpfc_seq_complete(seq_dmabuf))
11786 /* Send the complete sequence to the upper layer protocol */
11787 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
11791 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
11792 * @phba: pointer to lpfc hba data structure.
11794 * This routine is invoked to post rpi header templates to the
11795 * HBA consistent with the SLI-4 interface spec. This routine
11796 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
11797 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
11799 * This routine does not require any locks. It's usage is expected
11800 * to be driver load or reset recovery when the driver is
11805 * EIO - The mailbox failed to complete successfully.
11806 * When this error occurs, the driver is not guaranteed
11807 * to have any rpi regions posted to the device and
11808 * must either attempt to repost the regions or take a
11812 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
11814 struct lpfc_rpi_hdr *rpi_page;
11817 /* Post all rpi memory regions to the port. */
11818 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
11819 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
11820 if (rc != MBX_SUCCESS) {
11821 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11822 "2008 Error %d posting all rpi "
11833 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
11834 * @phba: pointer to lpfc hba data structure.
11835 * @rpi_page: pointer to the rpi memory region.
11837 * This routine is invoked to post a single rpi header to the
11838 * HBA consistent with the SLI-4 interface spec. This memory region
11839 * maps up to 64 rpi context regions.
11843 * ENOMEM - No available memory
11844 * EIO - The mailbox failed to complete successfully.
11847 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
11849 LPFC_MBOXQ_t *mboxq;
11850 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
11853 uint32_t shdr_status, shdr_add_status;
11854 union lpfc_sli4_cfg_shdr *shdr;
11856 /* The port is notified of the header region via a mailbox command. */
11857 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11859 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11860 "2001 Unable to allocate memory for issuing "
11861 "SLI_CONFIG_SPECIAL mailbox command\n");
11865 /* Post all rpi memory regions to the port. */
11866 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
11867 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
11868 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
11869 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
11870 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
11871 sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
11872 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
11873 hdr_tmpl, rpi_page->page_count);
11874 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
11875 rpi_page->start_rpi);
11876 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
11877 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
11878 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11879 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
11880 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11881 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11882 if (rc != MBX_TIMEOUT)
11883 mempool_free(mboxq, phba->mbox_mem_pool);
11884 if (shdr_status || shdr_add_status || rc) {
11885 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11886 "2514 POST_RPI_HDR mailbox failed with "
11887 "status x%x add_status x%x, mbx status x%x\n",
11888 shdr_status, shdr_add_status, rc);
11895 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
11896 * @phba: pointer to lpfc hba data structure.
11898 * This routine is invoked to post rpi header templates to the
11899 * HBA consistent with the SLI-4 interface spec. This routine
11900 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
11901 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
11904 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
11905 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
11908 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
11911 uint16_t max_rpi, rpi_base, rpi_limit;
11912 uint16_t rpi_remaining;
11913 struct lpfc_rpi_hdr *rpi_hdr;
11915 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
11916 rpi_base = phba->sli4_hba.max_cfg_param.rpi_base;
11917 rpi_limit = phba->sli4_hba.next_rpi;
11920 * The valid rpi range is not guaranteed to be zero-based. Start
11921 * the search at the rpi_base as reported by the port.
11923 spin_lock_irq(&phba->hbalock);
11924 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, rpi_base);
11925 if (rpi >= rpi_limit || rpi < rpi_base)
11926 rpi = LPFC_RPI_ALLOC_ERROR;
11928 set_bit(rpi, phba->sli4_hba.rpi_bmask);
11929 phba->sli4_hba.max_cfg_param.rpi_used++;
11930 phba->sli4_hba.rpi_count++;
11934 * Don't try to allocate more rpi header regions if the device limit
11935 * on available rpis max has been exhausted.
11937 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
11938 (phba->sli4_hba.rpi_count >= max_rpi)) {
11939 spin_unlock_irq(&phba->hbalock);
11944 * If the driver is running low on rpi resources, allocate another
11945 * page now. Note that the next_rpi value is used because
11946 * it represents how many are actually in use whereas max_rpi notes
11947 * how many are supported max by the device.
11949 rpi_remaining = phba->sli4_hba.next_rpi - rpi_base -
11950 phba->sli4_hba.rpi_count;
11951 spin_unlock_irq(&phba->hbalock);
11952 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
11953 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
11955 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11956 "2002 Error Could not grow rpi "
11959 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
11967 * lpfc_sli4_free_rpi - Release an rpi for reuse.
11968 * @phba: pointer to lpfc hba data structure.
11970 * This routine is invoked to release an rpi to the pool of
11971 * available rpis maintained by the driver.
11974 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
11976 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
11977 phba->sli4_hba.rpi_count--;
11978 phba->sli4_hba.max_cfg_param.rpi_used--;
11983 * lpfc_sli4_free_rpi - Release an rpi for reuse.
11984 * @phba: pointer to lpfc hba data structure.
11986 * This routine is invoked to release an rpi to the pool of
11987 * available rpis maintained by the driver.
11990 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
11992 spin_lock_irq(&phba->hbalock);
11993 __lpfc_sli4_free_rpi(phba, rpi);
11994 spin_unlock_irq(&phba->hbalock);
11998 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
11999 * @phba: pointer to lpfc hba data structure.
12001 * This routine is invoked to remove the memory region that
12002 * provided rpi via a bitmask.
12005 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
12007 kfree(phba->sli4_hba.rpi_bmask);
12011 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
12012 * @phba: pointer to lpfc hba data structure.
12014 * This routine is invoked to remove the memory region that
12015 * provided rpi via a bitmask.
12018 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp)
12020 LPFC_MBOXQ_t *mboxq;
12021 struct lpfc_hba *phba = ndlp->phba;
12024 /* The port is notified of the header region via a mailbox command. */
12025 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12029 /* Post all rpi memory regions to the port. */
12030 lpfc_resume_rpi(mboxq, ndlp);
12031 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
12032 if (rc == MBX_NOT_FINISHED) {
12033 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12034 "2010 Resume RPI Mailbox failed "
12035 "status %d, mbxStatus x%x\n", rc,
12036 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
12037 mempool_free(mboxq, phba->mbox_mem_pool);
12044 * lpfc_sli4_init_vpi - Initialize a vpi with the port
12045 * @phba: pointer to lpfc hba data structure.
12046 * @vpi: vpi value to activate with the port.
12048 * This routine is invoked to activate a vpi with the
12049 * port when the host intends to use vports with a
12054 * -Evalue otherwise
12057 lpfc_sli4_init_vpi(struct lpfc_hba *phba, uint16_t vpi)
12059 LPFC_MBOXQ_t *mboxq;
12061 int retval = MBX_SUCCESS;
12066 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12069 lpfc_init_vpi(phba, mboxq, vpi);
12070 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_INIT_VPI);
12071 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
12072 if (rc != MBX_SUCCESS) {
12073 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12074 "2022 INIT VPI Mailbox failed "
12075 "status %d, mbxStatus x%x\n", rc,
12076 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
12079 if (rc != MBX_TIMEOUT)
12080 mempool_free(mboxq, phba->mbox_mem_pool);
12086 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
12087 * @phba: pointer to lpfc hba data structure.
12088 * @mboxq: Pointer to mailbox object.
12090 * This routine is invoked to manually add a single FCF record. The caller
12091 * must pass a completely initialized FCF_Record. This routine takes
12092 * care of the nonembedded mailbox operations.
12095 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
12098 union lpfc_sli4_cfg_shdr *shdr;
12099 uint32_t shdr_status, shdr_add_status;
12101 virt_addr = mboxq->sge_array->addr[0];
12102 /* The IOCTL status is embedded in the mailbox subheader. */
12103 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
12104 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12105 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12107 if ((shdr_status || shdr_add_status) &&
12108 (shdr_status != STATUS_FCF_IN_USE))
12109 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12110 "2558 ADD_FCF_RECORD mailbox failed with "
12111 "status x%x add_status x%x\n",
12112 shdr_status, shdr_add_status);
12114 lpfc_sli4_mbox_cmd_free(phba, mboxq);
12118 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
12119 * @phba: pointer to lpfc hba data structure.
12120 * @fcf_record: pointer to the initialized fcf record to add.
12122 * This routine is invoked to manually add a single FCF record. The caller
12123 * must pass a completely initialized FCF_Record. This routine takes
12124 * care of the nonembedded mailbox operations.
12127 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
12130 LPFC_MBOXQ_t *mboxq;
12133 dma_addr_t phys_addr;
12134 struct lpfc_mbx_sge sge;
12135 uint32_t alloc_len, req_len;
12138 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12141 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
12145 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
12148 /* Allocate DMA memory and set up the non-embedded mailbox command */
12149 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
12150 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
12151 req_len, LPFC_SLI4_MBX_NEMBED);
12152 if (alloc_len < req_len) {
12153 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12154 "2523 Allocated DMA memory size (x%x) is "
12155 "less than the requested DMA memory "
12156 "size (x%x)\n", alloc_len, req_len);
12157 lpfc_sli4_mbox_cmd_free(phba, mboxq);
12162 * Get the first SGE entry from the non-embedded DMA memory. This
12163 * routine only uses a single SGE.
12165 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
12166 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
12167 virt_addr = mboxq->sge_array->addr[0];
12169 * Configure the FCF record for FCFI 0. This is the driver's
12170 * hardcoded default and gets used in nonFIP mode.
12172 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
12173 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
12174 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
12177 * Copy the fcf_index and the FCF Record Data. The data starts after
12178 * the FCoE header plus word10. The data copy needs to be endian
12181 bytep += sizeof(uint32_t);
12182 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
12183 mboxq->vport = phba->pport;
12184 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
12185 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
12186 if (rc == MBX_NOT_FINISHED) {
12187 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12188 "2515 ADD_FCF_RECORD mailbox failed with "
12189 "status 0x%x\n", rc);
12190 lpfc_sli4_mbox_cmd_free(phba, mboxq);
12199 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
12200 * @phba: pointer to lpfc hba data structure.
12201 * @fcf_record: pointer to the fcf record to write the default data.
12202 * @fcf_index: FCF table entry index.
12204 * This routine is invoked to build the driver's default FCF record. The
12205 * values used are hardcoded. This routine handles memory initialization.
12209 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
12210 struct fcf_record *fcf_record,
12211 uint16_t fcf_index)
12213 memset(fcf_record, 0, sizeof(struct fcf_record));
12214 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
12215 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
12216 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
12217 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
12218 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
12219 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
12220 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
12221 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
12222 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
12223 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
12224 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
12225 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
12226 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
12227 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
12228 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
12229 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
12230 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
12231 /* Set the VLAN bit map */
12232 if (phba->valid_vlan) {
12233 fcf_record->vlan_bitmap[phba->vlan_id / 8]
12234 = 1 << (phba->vlan_id % 8);
12239 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
12240 * @phba: pointer to lpfc hba data structure.
12241 * @fcf_index: FCF table entry offset.
12243 * This routine is invoked to scan the entire FCF table by reading FCF
12244 * record and processing it one at a time starting from the @fcf_index
12245 * for initial FCF discovery or fast FCF failover rediscovery.
12247 * Return 0 if the mailbox command is submitted sucessfully, none 0
12251 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
12254 LPFC_MBOXQ_t *mboxq;
12256 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
12257 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12259 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12260 "2000 Failed to allocate mbox for "
12263 goto fail_fcf_scan;
12265 /* Construct the read FCF record mailbox command */
12266 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
12269 goto fail_fcf_scan;
12271 /* Issue the mailbox command asynchronously */
12272 mboxq->vport = phba->pport;
12273 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
12274 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
12275 if (rc == MBX_NOT_FINISHED)
12278 spin_lock_irq(&phba->hbalock);
12279 phba->hba_flag |= FCF_DISC_INPROGRESS;
12280 spin_unlock_irq(&phba->hbalock);
12281 /* Reset FCF round robin index bmask for new scan */
12282 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST) {
12283 memset(phba->fcf.fcf_rr_bmask, 0,
12284 sizeof(*phba->fcf.fcf_rr_bmask));
12285 phba->fcf.eligible_fcf_cnt = 0;
12292 lpfc_sli4_mbox_cmd_free(phba, mboxq);
12293 /* FCF scan failed, clear FCF_DISC_INPROGRESS flag */
12294 spin_lock_irq(&phba->hbalock);
12295 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
12296 spin_unlock_irq(&phba->hbalock);
12302 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for round robin fcf.
12303 * @phba: pointer to lpfc hba data structure.
12304 * @fcf_index: FCF table entry offset.
12306 * This routine is invoked to read an FCF record indicated by @fcf_index
12307 * and to use it for FLOGI round robin FCF failover.
12309 * Return 0 if the mailbox command is submitted sucessfully, none 0
12313 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
12316 LPFC_MBOXQ_t *mboxq;
12318 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12320 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
12321 "2763 Failed to allocate mbox for "
12324 goto fail_fcf_read;
12326 /* Construct the read FCF record mailbox command */
12327 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
12330 goto fail_fcf_read;
12332 /* Issue the mailbox command asynchronously */
12333 mboxq->vport = phba->pport;
12334 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
12335 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
12336 if (rc == MBX_NOT_FINISHED)
12342 if (error && mboxq)
12343 lpfc_sli4_mbox_cmd_free(phba, mboxq);
12348 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
12349 * @phba: pointer to lpfc hba data structure.
12350 * @fcf_index: FCF table entry offset.
12352 * This routine is invoked to read an FCF record indicated by @fcf_index to
12353 * determine whether it's eligible for FLOGI round robin failover list.
12355 * Return 0 if the mailbox command is submitted sucessfully, none 0
12359 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
12362 LPFC_MBOXQ_t *mboxq;
12364 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12366 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
12367 "2758 Failed to allocate mbox for "
12370 goto fail_fcf_read;
12372 /* Construct the read FCF record mailbox command */
12373 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
12376 goto fail_fcf_read;
12378 /* Issue the mailbox command asynchronously */
12379 mboxq->vport = phba->pport;
12380 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
12381 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
12382 if (rc == MBX_NOT_FINISHED)
12388 if (error && mboxq)
12389 lpfc_sli4_mbox_cmd_free(phba, mboxq);
12394 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
12395 * @phba: pointer to lpfc hba data structure.
12397 * This routine is to get the next eligible FCF record index in a round
12398 * robin fashion. If the next eligible FCF record index equals to the
12399 * initial round robin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
12400 * shall be returned, otherwise, the next eligible FCF record's index
12401 * shall be returned.
12404 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
12406 uint16_t next_fcf_index;
12408 /* Search start from next bit of currently registered FCF index */
12409 next_fcf_index = (phba->fcf.current_rec.fcf_indx + 1) %
12410 LPFC_SLI4_FCF_TBL_INDX_MAX;
12411 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
12412 LPFC_SLI4_FCF_TBL_INDX_MAX,
12415 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
12416 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
12417 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
12418 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
12420 /* Check roundrobin failover list empty condition */
12421 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
12422 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
12423 "2844 No roundrobin failover FCF available\n");
12424 return LPFC_FCOE_FCF_NEXT_NONE;
12427 /* Check roundrobin failover index bmask stop condition */
12428 if (next_fcf_index == phba->fcf.fcf_rr_init_indx) {
12429 if (!(phba->fcf.fcf_flag & FCF_REDISC_RRU)) {
12430 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
12431 "2847 Round robin failover FCF index "
12432 "search hit stop condition:x%x\n",
12434 return LPFC_FCOE_FCF_NEXT_NONE;
12436 /* The roundrobin failover index bmask updated, start over */
12437 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
12438 "2848 Round robin failover FCF index bmask "
12439 "updated, start over\n");
12440 spin_lock_irq(&phba->hbalock);
12441 phba->fcf.fcf_flag &= ~FCF_REDISC_RRU;
12442 spin_unlock_irq(&phba->hbalock);
12443 return phba->fcf.fcf_rr_init_indx;
12446 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
12447 "2845 Get next round robin failover "
12448 "FCF index x%x\n", next_fcf_index);
12449 return next_fcf_index;
12453 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
12454 * @phba: pointer to lpfc hba data structure.
12456 * This routine sets the FCF record index in to the eligible bmask for
12457 * round robin failover search. It checks to make sure that the index
12458 * does not go beyond the range of the driver allocated bmask dimension
12459 * before setting the bit.
12461 * Returns 0 if the index bit successfully set, otherwise, it returns
12465 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
12467 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
12468 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
12469 "2610 HBA FCF index reached driver's "
12470 "book keeping dimension: fcf_index:%d, "
12471 "driver_bmask_max:%d\n",
12472 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
12475 /* Set the eligible FCF record index bmask */
12476 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
12478 /* Set the roundrobin index bmask updated */
12479 spin_lock_irq(&phba->hbalock);
12480 phba->fcf.fcf_flag |= FCF_REDISC_RRU;
12481 spin_unlock_irq(&phba->hbalock);
12483 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
12484 "2790 Set FCF index x%x to round robin failover "
12485 "bmask\n", fcf_index);
12491 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
12492 * @phba: pointer to lpfc hba data structure.
12494 * This routine clears the FCF record index from the eligible bmask for
12495 * round robin failover search. It checks to make sure that the index
12496 * does not go beyond the range of the driver allocated bmask dimension
12497 * before clearing the bit.
12500 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
12502 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
12503 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
12504 "2762 HBA FCF index goes beyond driver's "
12505 "book keeping dimension: fcf_index:%d, "
12506 "driver_bmask_max:%d\n",
12507 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
12510 /* Clear the eligible FCF record index bmask */
12511 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
12513 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
12514 "2791 Clear FCF index x%x from round robin failover "
12515 "bmask\n", fcf_index);
12519 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
12520 * @phba: pointer to lpfc hba data structure.
12522 * This routine is the completion routine for the rediscover FCF table mailbox
12523 * command. If the mailbox command returned failure, it will try to stop the
12524 * FCF rediscover wait timer.
12527 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
12529 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
12530 uint32_t shdr_status, shdr_add_status;
12532 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
12534 shdr_status = bf_get(lpfc_mbox_hdr_status,
12535 &redisc_fcf->header.cfg_shdr.response);
12536 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
12537 &redisc_fcf->header.cfg_shdr.response);
12538 if (shdr_status || shdr_add_status) {
12539 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
12540 "2746 Requesting for FCF rediscovery failed "
12541 "status x%x add_status x%x\n",
12542 shdr_status, shdr_add_status);
12543 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
12544 spin_lock_irq(&phba->hbalock);
12545 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
12546 spin_unlock_irq(&phba->hbalock);
12548 * CVL event triggered FCF rediscover request failed,
12549 * last resort to re-try current registered FCF entry.
12551 lpfc_retry_pport_discovery(phba);
12553 spin_lock_irq(&phba->hbalock);
12554 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
12555 spin_unlock_irq(&phba->hbalock);
12557 * DEAD FCF event triggered FCF rediscover request
12558 * failed, last resort to fail over as a link down
12559 * to FCF registration.
12561 lpfc_sli4_fcf_dead_failthrough(phba);
12564 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
12565 "2775 Start FCF rediscovery quiescent period "
12566 "wait timer before scaning FCF table\n");
12568 * Start FCF rediscovery wait timer for pending FCF
12569 * before rescan FCF record table.
12571 lpfc_fcf_redisc_wait_start_timer(phba);
12574 mempool_free(mbox, phba->mbox_mem_pool);
12578 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
12579 * @phba: pointer to lpfc hba data structure.
12581 * This routine is invoked to request for rediscovery of the entire FCF table
12585 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
12587 LPFC_MBOXQ_t *mbox;
12588 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
12591 /* Cancel retry delay timers to all vports before FCF rediscover */
12592 lpfc_cancel_all_vport_retry_delay_timer(phba);
12594 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12596 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12597 "2745 Failed to allocate mbox for "
12598 "requesting FCF rediscover.\n");
12602 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
12603 sizeof(struct lpfc_sli4_cfg_mhdr));
12604 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12605 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
12606 length, LPFC_SLI4_MBX_EMBED);
12608 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
12609 /* Set count to 0 for invalidating the entire FCF database */
12610 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
12612 /* Issue the mailbox command asynchronously */
12613 mbox->vport = phba->pport;
12614 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
12615 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
12617 if (rc == MBX_NOT_FINISHED) {
12618 mempool_free(mbox, phba->mbox_mem_pool);
12625 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
12626 * @phba: pointer to lpfc hba data structure.
12628 * This function is the failover routine as a last resort to the FCF DEAD
12629 * event when driver failed to perform fast FCF failover.
12632 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
12634 uint32_t link_state;
12637 * Last resort as FCF DEAD event failover will treat this as
12638 * a link down, but save the link state because we don't want
12639 * it to be changed to Link Down unless it is already down.
12641 link_state = phba->link_state;
12642 lpfc_linkdown(phba);
12643 phba->link_state = link_state;
12645 /* Unregister FCF if no devices connected to it */
12646 lpfc_unregister_unused_fcf(phba);
12650 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
12651 * @phba: pointer to lpfc hba data structure.
12653 * This function read region 23 and parse TLV for port status to
12654 * decide if the user disaled the port. If the TLV indicates the
12655 * port is disabled, the hba_flag is set accordingly.
12658 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
12660 LPFC_MBOXQ_t *pmb = NULL;
12662 uint8_t *rgn23_data = NULL;
12663 uint32_t offset = 0, data_size, sub_tlv_len, tlv_offset;
12666 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12668 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12669 "2600 lpfc_sli_read_serdes_param failed to"
12670 " allocate mailbox memory\n");
12675 /* Get adapter Region 23 data */
12676 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
12681 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
12682 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
12684 if (rc != MBX_SUCCESS) {
12685 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12686 "2601 lpfc_sli_read_link_ste failed to"
12687 " read config region 23 rc 0x%x Status 0x%x\n",
12688 rc, mb->mbxStatus);
12689 mb->un.varDmp.word_cnt = 0;
12692 * dump mem may return a zero when finished or we got a
12693 * mailbox error, either way we are done.
12695 if (mb->un.varDmp.word_cnt == 0)
12697 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
12698 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
12700 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
12701 rgn23_data + offset,
12702 mb->un.varDmp.word_cnt);
12703 offset += mb->un.varDmp.word_cnt;
12704 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
12706 data_size = offset;
12712 /* Check the region signature first */
12713 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
12714 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12715 "2619 Config region 23 has bad signature\n");
12720 /* Check the data structure version */
12721 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
12722 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12723 "2620 Config region 23 has bad version\n");
12728 /* Parse TLV entries in the region */
12729 while (offset < data_size) {
12730 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
12733 * If the TLV is not driver specific TLV or driver id is
12734 * not linux driver id, skip the record.
12736 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
12737 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
12738 (rgn23_data[offset + 3] != 0)) {
12739 offset += rgn23_data[offset + 1] * 4 + 4;
12743 /* Driver found a driver specific TLV in the config region */
12744 sub_tlv_len = rgn23_data[offset + 1] * 4;
12749 * Search for configured port state sub-TLV.
12751 while ((offset < data_size) &&
12752 (tlv_offset < sub_tlv_len)) {
12753 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
12758 if (rgn23_data[offset] != PORT_STE_TYPE) {
12759 offset += rgn23_data[offset + 1] * 4 + 4;
12760 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
12764 /* This HBA contains PORT_STE configured */
12765 if (!rgn23_data[offset + 2])
12766 phba->hba_flag |= LINK_DISABLED;
12773 mempool_free(pmb, phba->mbox_mem_pool);
12779 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
12780 * @vport: pointer to vport data structure.
12782 * This function iterate through the mailboxq and clean up all REG_LOGIN
12783 * and REG_VPI mailbox commands associated with the vport. This function
12784 * is called when driver want to restart discovery of the vport due to
12785 * a Clear Virtual Link event.
12788 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
12790 struct lpfc_hba *phba = vport->phba;
12791 LPFC_MBOXQ_t *mb, *nextmb;
12792 struct lpfc_dmabuf *mp;
12793 struct lpfc_nodelist *ndlp;
12794 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
12796 spin_lock_irq(&phba->hbalock);
12797 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
12798 if (mb->vport != vport)
12801 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
12802 (mb->u.mb.mbxCommand != MBX_REG_VPI))
12805 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
12806 if (phba->sli_rev == LPFC_SLI_REV4)
12807 __lpfc_sli4_free_rpi(phba,
12808 mb->u.mb.un.varRegLogin.rpi);
12809 mp = (struct lpfc_dmabuf *) (mb->context1);
12811 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
12814 ndlp = (struct lpfc_nodelist *) mb->context2;
12816 spin_lock_irq(shost->host_lock);
12817 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
12818 spin_unlock_irq(shost->host_lock);
12819 lpfc_nlp_put(ndlp);
12820 mb->context2 = NULL;
12823 list_del(&mb->list);
12824 mempool_free(mb, phba->mbox_mem_pool);
12826 mb = phba->sli.mbox_active;
12827 if (mb && (mb->vport == vport)) {
12828 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
12829 (mb->u.mb.mbxCommand == MBX_REG_VPI))
12830 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12831 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
12832 ndlp = (struct lpfc_nodelist *) mb->context2;
12834 spin_lock_irq(shost->host_lock);
12835 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
12836 spin_unlock_irq(shost->host_lock);
12837 lpfc_nlp_put(ndlp);
12838 mb->context2 = NULL;
12840 /* Unregister the RPI when mailbox complete */
12841 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
12844 spin_unlock_irq(&phba->hbalock);
12848 * lpfc_drain_txq - Drain the txq
12849 * @phba: Pointer to HBA context object.
12851 * This function attempt to submit IOCBs on the txq
12852 * to the adapter. For SLI4 adapters, the txq contains
12853 * ELS IOCBs that have been deferred because the there
12854 * are no SGLs. This congestion can occur with large
12855 * vport counts during node discovery.
12859 lpfc_drain_txq(struct lpfc_hba *phba)
12861 LIST_HEAD(completions);
12862 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
12863 struct lpfc_iocbq *piocbq = 0;
12864 unsigned long iflags = 0;
12865 char *fail_msg = NULL;
12866 struct lpfc_sglq *sglq;
12867 union lpfc_wqe wqe;
12869 spin_lock_irqsave(&phba->hbalock, iflags);
12870 if (pring->txq_cnt > pring->txq_max)
12871 pring->txq_max = pring->txq_cnt;
12873 spin_unlock_irqrestore(&phba->hbalock, iflags);
12875 while (pring->txq_cnt) {
12876 spin_lock_irqsave(&phba->hbalock, iflags);
12878 sglq = __lpfc_sli_get_sglq(phba);
12880 spin_unlock_irqrestore(&phba->hbalock, iflags);
12883 piocbq = lpfc_sli_ringtx_get(phba, pring);
12885 /* The txq_cnt out of sync. This should
12888 sglq = __lpfc_clear_active_sglq(phba,
12889 sglq->sli4_xritag);
12890 spin_unlock_irqrestore(&phba->hbalock, iflags);
12891 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12892 "2823 txq empty and txq_cnt is %d\n ",
12898 /* The xri and iocb resources secured,
12899 * attempt to issue request
12901 piocbq->sli4_xritag = sglq->sli4_xritag;
12902 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
12903 fail_msg = "to convert bpl to sgl";
12904 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
12905 fail_msg = "to convert iocb to wqe";
12906 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
12907 fail_msg = " - Wq is full";
12909 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
12912 /* Failed means we can't issue and need to cancel */
12913 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12914 "2822 IOCB failed %s iotag 0x%x "
12917 piocbq->iotag, piocbq->sli4_xritag);
12918 list_add_tail(&piocbq->list, &completions);
12920 spin_unlock_irqrestore(&phba->hbalock, iflags);
12923 /* Cancel all the IOCBs that cannot be issued */
12924 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
12925 IOERR_SLI_ABORTED);
12927 return pring->txq_cnt;